Merge pull request #4 from TopchetoEU/TopchetoEU/environments

Create environments

.gitattributes

@@ -1,9 +0,0 @@
-#
-# https://help.github.com/articles/dealing-with-line-endings/
-#
-# Linux start script should use lf
-/gradlew        text eol=lf
-
-# These are Windows script files and should use crlf
-*.bat           text eol=crlf
-

.github/workflows/tagged-release.yml

@@ -18,13 +18,7 @@ jobs:
           repository: 'java-jscript'
       - name: "Build"
         run: |
-          cd java-jscript;
-          ls;
-          mkdir -p dst/classes;
-          rsync -av --exclude='*.java' src/ dst/classes;
-          tsc --outDir dst/classes/me/topchetoeu/jscript/js --declarationDir dst/classes/me/topchetoeu/jscript/dts;
-          find src -name "*.java" | xargs javac -d dst/classes;
-          jar -c -f dst/jscript.jar -e me.topchetoeu.jscript.Main -C dst/classes .
+          cd java-jscript; node ./build.js release ${{ github.ref }}
 
       - uses: "marvinpinto/action-automatic-releases@latest"
         with:

.gitignore

@@ -1,8 +1,11 @@
 .vscode
 .gradle
 .ignore
-out
-build
-bin
-dst
-/*.js
+/out
+/build
+/bin
+/dst
+/*.js
+!/build.js
+/dead-code
+/Metadata.java

build.js

@@ -0,0 +1,80 @@
+const { spawn } = require('child_process');
+const fs = require('fs/promises');
+const pt = require('path');
+const { argv } = require('process');
+
+const conf = {
+    name: "java-jscript",
+    author: "TopchetoEU",
+    javahome: "",
+    version: argv[3]
+};
+
+if (conf.version.startsWith('refs/tags/')) conf.version = conf.version.substring(10);
+if (conf.version.startsWith('v')) conf.version = conf.version.substring(1);
+
+async function* find(src, dst, wildcard) {
+    const stat = await fs.stat(src);
+
+    if (stat.isDirectory()) {
+        for (const el of await fs.readdir(src)) {
+            for await (const res of find(pt.join(src, el), dst ? pt.join(dst, el) : undefined, wildcard)) yield res;
+        }
+    }
+    else if (stat.isFile() && wildcard(src)) yield dst ? { src, dst } : src;
+}
+async function copy(src, dst, wildcard) {
+    const promises = [];
+
+    for await (const el of find(src, dst, wildcard)) {
+        promises.push((async () => {
+            await fs.mkdir(pt.dirname(el.dst), { recursive: true });
+            await fs.copyFile(el.src, el.dst);
+        })());
+    }
+
+    await Promise.all(promises);
+}
+
+function run(cmd, ...args) {
+    return new Promise((res, rej) => {
+        const proc = spawn(cmd, args, { stdio: 'inherit' });
+        proc.once('exit', code => {
+            if (code === 0) res(code);
+            else rej(new Error(`Process ${cmd} exited with code ${code}.`));
+        });
+    })
+}
+
+async function compileJava() {
+    try {
+        await fs.writeFile('Metadata.java', (await fs.readFile('src/me/topchetoeu/jscript/Metadata.java')).toString()
+            .replace('${VERSION}', conf.version)
+            .replace('${NAME}', conf.name)
+            .replace('${AUTHOR}', conf.author)
+        );
+        const args = ['--release', '11', ];
+        if (argv[1] === 'debug') args.push('-g');
+        args.push('-d', 'dst/classes', 'Metadata.java');
+    
+        for await (const path of find('src', undefined, v => v.endsWith('.java') && !v.endsWith('Metadata.java'))) args.push(path);
+        await run(conf.javahome + 'javac', ...args);
+    }
+    finally {
+        await fs.rm('Metadata.java');
+    }
+}
+
+(async () => {
+    try {
+        try { await fs.rm('dst', { recursive: true }); } catch {}
+        await copy('src', 'dst/classes', v => !v.endsWith('.java'));
+        await run('tsc', '-p', 'lib/tsconfig.json', '--outFile', 'dst/classes/me/topchetoeu/jscript/js/core.js'),
+        await compileJava();
+        await run('jar', '-c', '-f', 'dst/jscript.jar', '-e', 'me.topchetoeu.jscript.Main', '-C', 'dst/classes', '.');
+    }
+    catch (e) {
+        if (argv[2] === 'debug') throw e;
+        else console.log(e.toString());
+    }
+})();

dead-code/debug/DebugServer.java

@@ -1,154 +1,154 @@
-package me.topchetoeu.jscript.engine.debug;
-
-import java.io.IOException;
-import java.net.InetSocketAddress;
-import java.net.ServerSocket;
-import java.net.Socket;
-import java.security.MessageDigest;
-import java.util.Base64;
-
-import me.topchetoeu.jscript.engine.Engine;
-import me.topchetoeu.jscript.engine.debug.WebSocketMessage.Type;
-import me.topchetoeu.jscript.engine.debug.handlers.DebuggerHandles;
-import me.topchetoeu.jscript.exceptions.SyntaxException;
-
-public class DebugServer {
-    public static String browserDisplayName = "jscript";
-    public static String targetName = "target";
-
-    public final Engine engine;
-
-    private static void send(Socket socket, String val) throws IOException {
-        Http.writeResponse(socket.getOutputStream(), 200, "OK", "application/json", val.getBytes());
-    }
-
-    // SILENCE JAVA
-    private MessageDigest getDigestInstance() {
-        try {
-            return MessageDigest.getInstance("sha1");
-        }
-        catch (Throwable a) { return null; }
-    }
-
-    private static Thread runAsync(Runnable func, String name) {
-        var res = new Thread(func);
-        res.setName(name);
-        res.start();
-        return res;
-    }
-
-    private void handle(WebSocket ws) throws InterruptedException, IOException {
-        WebSocketMessage raw;
-
-        while ((raw = ws.receive()) != null) {
-            if (raw.type != Type.Text) {
-                ws.send(new V8Error("Expected a text message."));
-                continue;
-            }
-
-            V8Message msg;
-
-            try {
-                msg = new V8Message(raw.textData());
-            }
-            catch (SyntaxException e) {
-                ws.send(new V8Error(e.getMessage()));
-                return;
-            }
-
-            switch (msg.name) {
-                case "Debugger.enable": DebuggerHandles.enable(msg, engine, ws); continue;
-                case "Debugger.disable": DebuggerHandles.disable(msg, engine, ws); continue;
-                case "Debugger.stepInto": DebuggerHandles.stepInto(msg, engine, ws); continue;
-            }
-        }
-    }
-    private void onWsConnect(HttpRequest req, Socket socket) throws IOException {
-        var key = req.headers.get("sec-websocket-key");
-
-        if (key == null) {
-            Http.writeResponse(
-                socket.getOutputStream(), 426, "Upgrade Required", "text/txt",
-                "Expected a WS upgrade".getBytes()
-            );
-            return;
-        }
-
-        var resKey = Base64.getEncoder().encodeToString(getDigestInstance().digest(
-            (key + "258EAFA5-E914-47DA-95CA-C5AB0DC85B11").getBytes()
-        ));
-
-        Http.writeCode(socket.getOutputStream(), 101, "Switching Protocols");
-        Http.writeHeader(socket.getOutputStream(), "Connection", "Upgrade");
-        Http.writeHeader(socket.getOutputStream(), "Sec-WebSocket-Accept", resKey);
-        Http.writeLastHeader(socket.getOutputStream(), "Upgrade", "WebSocket");
-
-        var ws = new WebSocket(socket);
-
-        runAsync(() -> {
-            try {
-                handle(ws);
-            }
-            catch (InterruptedException e) { return; }
-            catch (IOException e) { e.printStackTrace(); }
-            finally { ws.close(); }
-        }, "Debug Server Message Reader");
-        runAsync(() -> {
-            try {
-                handle(ws);
-            }
-            catch (InterruptedException e) { return; }
-            catch (IOException e) { e.printStackTrace(); }
-            finally { ws.close(); }
-        }, "Debug Server Event Writer");
-    }
-
-    public void open(InetSocketAddress address) throws IOException {
-        ServerSocket server = new ServerSocket();
-        server.bind(address);
-
-        try {
-            while (true) {
-                var socket = server.accept();
-                var req = Http.readRequest(socket.getInputStream());
-
-                switch (req.path) {
-                    case "/json/version":
-                        send(socket, "{\"Browser\":\"" + browserDisplayName + "\",\"Protocol-Version\":\"1.2\"}");
-                        break;
-                    case "/json/list":
-                    case "/json":
-                        var addr = "ws://" + address.getHostString() + ":" + address.getPort() + "/devtools/page/" + targetName;
-                        send(socket, "{\"id\":\"" + browserDisplayName + "\",\"webSocketDebuggerUrl\":\"" + addr + "\"}");
-                        break;
-                    case "/json/new":
-                    case "/json/activate":
-                    case "/json/protocol":
-                    case "/json/close":
-                    case "/devtools/inspector.html":
-                        Http.writeResponse(
-                            socket.getOutputStream(),
-                            501, "Not Implemented", "text/txt",
-                            "This feature isn't (and won't be) implemented.".getBytes()
-                        );
-                        break;
-                    default:
-                        if (req.path.equals("/devtools/page/" + targetName)) onWsConnect(req, socket);
-                        else {
-                            Http.writeResponse(
-                                socket.getOutputStream(),
-                                404, "Not Found", "text/txt",
-                                "Not found :/".getBytes()
-                            );
-                        }
-                        break;
-                }
-            }
-        }
-        finally { server.close(); }
-    }
-
-    public DebugServer(Engine engine) {
-        this.engine = engine;
-    }
-}
+package me.topchetoeu.jscript.engine.debug;
+
+import java.io.IOException;
+import java.net.InetSocketAddress;
+import java.net.ServerSocket;
+import java.net.Socket;
+import java.security.MessageDigest;
+import java.util.Base64;
+
+import me.topchetoeu.jscript.engine.Engine;
+import me.topchetoeu.jscript.engine.debug.WebSocketMessage.Type;
+import me.topchetoeu.jscript.engine.debug.handlers.DebuggerHandles;
+import me.topchetoeu.jscript.exceptions.SyntaxException;
+
+public class DebugServer {
+    public static String browserDisplayName = "jscript";
+    public static String targetName = "target";
+
+    public final Engine engine;
+
+    private static void send(Socket socket, String val) throws IOException {
+        Http.writeResponse(socket.getOutputStream(), 200, "OK", "application/json", val.getBytes());
+    }
+
+    // SILENCE JAVA
+    private MessageDigest getDigestInstance() {
+        try {
+            return MessageDigest.getInstance("sha1");
+        }
+        catch (Throwable a) { return null; }
+    }
+
+    private static Thread runAsync(Runnable func, String name) {
+        var res = new Thread(func);
+        res.setName(name);
+        res.start();
+        return res;
+    }
+
+    private void handle(WebSocket ws) throws InterruptedException, IOException {
+        WebSocketMessage raw;
+
+        while ((raw = ws.receive()) != null) {
+            if (raw.type != Type.Text) {
+                ws.send(new V8Error("Expected a text message."));
+                continue;
+            }
+
+            V8Message msg;
+
+            try {
+                msg = new V8Message(raw.textData());
+            }
+            catch (SyntaxException e) {
+                ws.send(new V8Error(e.getMessage()));
+                return;
+            }
+
+            switch (msg.name) {
+                case "Debugger.enable": DebuggerHandles.enable(msg, engine, ws); continue;
+                case "Debugger.disable": DebuggerHandles.disable(msg, engine, ws); continue;
+                case "Debugger.stepInto": DebuggerHandles.stepInto(msg, engine, ws); continue;
+            }
+        }
+    }
+    private void onWsConnect(HttpRequest req, Socket socket) throws IOException {
+        var key = req.headers.get("sec-websocket-key");
+
+        if (key == null) {
+            Http.writeResponse(
+                socket.getOutputStream(), 426, "Upgrade Required", "text/txt",
+                "Expected a WS upgrade".getBytes()
+            );
+            return;
+        }
+
+        var resKey = Base64.getEncoder().encodeToString(getDigestInstance().digest(
+            (key + "258EAFA5-E914-47DA-95CA-C5AB0DC85B11").getBytes()
+        ));
+
+        Http.writeCode(socket.getOutputStream(), 101, "Switching Protocols");
+        Http.writeHeader(socket.getOutputStream(), "Connection", "Upgrade");
+        Http.writeHeader(socket.getOutputStream(), "Sec-WebSocket-Accept", resKey);
+        Http.writeLastHeader(socket.getOutputStream(), "Upgrade", "WebSocket");
+
+        var ws = new WebSocket(socket);
+
+        runAsync(() -> {
+            try {
+                handle(ws);
+            }
+            catch (InterruptedException e) { return; }
+            catch (IOException e) { e.printStackTrace(); }
+            finally { ws.close(); }
+        }, "Debug Server Message Reader");
+        runAsync(() -> {
+            try {
+                handle(ws);
+            }
+            catch (InterruptedException e) { return; }
+            catch (IOException e) { e.printStackTrace(); }
+            finally { ws.close(); }
+        }, "Debug Server Event Writer");
+    }
+
+    public void open(InetSocketAddress address) throws IOException {
+        ServerSocket server = new ServerSocket();
+        server.bind(address);
+
+        try {
+            while (true) {
+                var socket = server.accept();
+                var req = Http.readRequest(socket.getInputStream());
+
+                switch (req.path) {
+                    case "/json/version":
+                        send(socket, "{\"Browser\":\"" + browserDisplayName + "\",\"Protocol-Version\":\"1.2\"}");
+                        break;
+                    case "/json/list":
+                    case "/json":
+                        var addr = "ws://" + address.getHostString() + ":" + address.getPort() + "/devtools/page/" + targetName;
+                        send(socket, "{\"id\":\"" + browserDisplayName + "\",\"webSocketDebuggerUrl\":\"" + addr + "\"}");
+                        break;
+                    case "/json/new":
+                    case "/json/activate":
+                    case "/json/protocol":
+                    case "/json/close":
+                    case "/devtools/inspector.html":
+                        Http.writeResponse(
+                            socket.getOutputStream(),
+                            501, "Not Implemented", "text/txt",
+                            "This feature isn't (and won't be) implemented.".getBytes()
+                        );
+                        break;
+                    default:
+                        if (req.path.equals("/devtools/page/" + targetName)) onWsConnect(req, socket);
+                        else {
+                            Http.writeResponse(
+                                socket.getOutputStream(),
+                                404, "Not Found", "text/txt",
+                                "Not found :/".getBytes()
+                            );
+                        }
+                        break;
+                }
+            }
+        }
+        finally { server.close(); }
+    }
+
+    public DebugServer(Engine engine) {
+        this.engine = engine;
+    }
+}

dead-code/debug/DebugState.java

@@ -1,52 +1,52 @@
-package me.topchetoeu.jscript.engine.debug;
-
-import java.util.ArrayList;
-import java.util.HashMap;
-import java.util.HashSet;
-import java.util.List;
-import java.util.Map;
-
-import me.topchetoeu.jscript.Location;
-import me.topchetoeu.jscript.engine.BreakpointData;
-import me.topchetoeu.jscript.engine.DebugCommand;
-import me.topchetoeu.jscript.engine.frame.CodeFrame;
-import me.topchetoeu.jscript.events.Event;
-
-public class DebugState {
-    private boolean paused = false;
-
-    public final HashSet<Location> breakpoints = new HashSet<>();
-    public final List<CodeFrame> frames = new ArrayList<>();
-    public final Map<String, String> sources = new HashMap<>();
-
-    public final Event<BreakpointData> breakpointNotifier = new Event<>();
-    public final Event<DebugCommand> commandNotifier = new Event<>();
-    public final Event<String> sourceAdded = new Event<>();
-
-    public DebugState pushFrame(CodeFrame frame) {
-        frames.add(frame);
-        return this;
-    }
-    public DebugState popFrame() {
-        if (frames.size() > 0) frames.remove(frames.size() - 1);
-        return this;
-    }
-
-    public DebugCommand pause(BreakpointData data) throws InterruptedException {
-        paused = true;
-        breakpointNotifier.next(data);
-        return commandNotifier.toAwaitable().await();
-    }
-    public void resume(DebugCommand command) {
-        paused = false;
-        commandNotifier.next(command);
-    }
-
-    // public void addSource()?
-
-    public boolean paused() { return paused; }
-
-    public boolean isBreakpoint(Location loc) {
-        return breakpoints.contains(loc);
-    }
-}
+package me.topchetoeu.jscript.engine.debug;
+
+import java.util.ArrayList;
+import java.util.HashMap;
+import java.util.HashSet;
+import java.util.List;
+import java.util.Map;
+
+import me.topchetoeu.jscript.Location;
+import me.topchetoeu.jscript.engine.BreakpointData;
+import me.topchetoeu.jscript.engine.DebugCommand;
+import me.topchetoeu.jscript.engine.frame.CodeFrame;
+import me.topchetoeu.jscript.events.Event;
+
+public class DebugState {
+    private boolean paused = false;
+
+    public final HashSet<Location> breakpoints = new HashSet<>();
+    public final List<CodeFrame> frames = new ArrayList<>();
+    public final Map<String, String> sources = new HashMap<>();
+
+    public final Event<BreakpointData> breakpointNotifier = new Event<>();
+    public final Event<DebugCommand> commandNotifier = new Event<>();
+    public final Event<String> sourceAdded = new Event<>();
+
+    public DebugState pushFrame(CodeFrame frame) {
+        frames.add(frame);
+        return this;
+    }
+    public DebugState popFrame() {
+        if (frames.size() > 0) frames.remove(frames.size() - 1);
+        return this;
+    }
+
+    public DebugCommand pause(BreakpointData data) throws InterruptedException {
+        paused = true;
+        breakpointNotifier.next(data);
+        return commandNotifier.toAwaitable().await();
+    }
+    public void resume(DebugCommand command) {
+        paused = false;
+        commandNotifier.next(command);
+    }
+
+    // public void addSource()?
+
+    public boolean paused() { return paused; }
+
+    public boolean isBreakpoint(Location loc) {
+        return breakpoints.contains(loc);
+    }
+}

dead-code/debug/Http.java

@@ -1,65 +1,65 @@
-package me.topchetoeu.jscript.engine.debug;
-
-import java.io.BufferedReader;
-import java.io.IOException;
-import java.io.InputStream;
-import java.io.InputStreamReader;
-import java.io.OutputStream;
-import java.util.HashMap;
-import java.util.IllegalFormatException;
-
-// We dont need no http library
-public class Http {
-    public static void writeCode(OutputStream str, int code, String name) throws IOException {
-        str.write(("HTTP/1.1 " + code + " " + name + "\r\n").getBytes());
-    }
-    public static void writeHeader(OutputStream str, String name, String value) throws IOException {
-        str.write((name + ": " + value + "\r\n").getBytes());
-    }
-    public static void writeLastHeader(OutputStream str, String name, String value) throws IOException {
-        str.write((name + ": " + value + "\r\n").getBytes());
-        writeHeadersEnd(str);
-    }
-    public static void writeHeadersEnd(OutputStream str) throws IOException {
-        str.write("\n".getBytes());
-    }
-
-    public static void writeResponse(OutputStream str, int code, String name, String type, byte[] data) throws IOException {
-        writeCode(str, code, name);
-        writeHeader(str, "Content-Type", type);
-        writeLastHeader(str, "Content-Length", data.length + "");
-        str.write(data);
-        str.close();
-    }
-
-    public static HttpRequest readRequest(InputStream str) throws IOException {
-        var lines = new BufferedReader(new InputStreamReader(str));
-        var line = lines.readLine();
-        var i1 = line.indexOf(" ");
-        var i2 = line.lastIndexOf(" ");
-
-        var method = line.substring(0, i1).trim().toUpperCase();
-        var path = line.substring(i1 + 1, i2).trim();
-        var headers = new HashMap<String, String>();
-
-        while (!(line = lines.readLine()).isEmpty()) {
-            var i = line.indexOf(":");
-            if (i < 0) continue;
-            var name = line.substring(0, i).trim().toLowerCase();
-            var value = line.substring(i + 1).trim();
-
-            if (name.length() == 0) continue;
-            headers.put(name, value);
-        }
-
-        if (headers.containsKey("content-length")) {
-            try {
-                var i = Integer.parseInt(headers.get("content-length"));
-                str.skip(i);
-            }
-            catch (IllegalFormatException e) { /* ¯\_(ツ)_/¯ */ }
-        }
-
-        return new HttpRequest(method, path, headers);
-    }
-}
+package me.topchetoeu.jscript.engine.debug;
+
+import java.io.BufferedReader;
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.InputStreamReader;
+import java.io.OutputStream;
+import java.util.HashMap;
+import java.util.IllegalFormatException;
+
+// We dont need no http library
+public class Http {
+    public static void writeCode(OutputStream str, int code, String name) throws IOException {
+        str.write(("HTTP/1.1 " + code + " " + name + "\r\n").getBytes());
+    }
+    public static void writeHeader(OutputStream str, String name, String value) throws IOException {
+        str.write((name + ": " + value + "\r\n").getBytes());
+    }
+    public static void writeLastHeader(OutputStream str, String name, String value) throws IOException {
+        str.write((name + ": " + value + "\r\n").getBytes());
+        writeHeadersEnd(str);
+    }
+    public static void writeHeadersEnd(OutputStream str) throws IOException {
+        str.write("\n".getBytes());
+    }
+
+    public static void writeResponse(OutputStream str, int code, String name, String type, byte[] data) throws IOException {
+        writeCode(str, code, name);
+        writeHeader(str, "Content-Type", type);
+        writeLastHeader(str, "Content-Length", data.length + "");
+        str.write(data);
+        str.close();
+    }
+
+    public static HttpRequest readRequest(InputStream str) throws IOException {
+        var lines = new BufferedReader(new InputStreamReader(str));
+        var line = lines.readLine();
+        var i1 = line.indexOf(" ");
+        var i2 = line.lastIndexOf(" ");
+
+        var method = line.substring(0, i1).trim().toUpperCase();
+        var path = line.substring(i1 + 1, i2).trim();
+        var headers = new HashMap<String, String>();
+
+        while (!(line = lines.readLine()).isEmpty()) {
+            var i = line.indexOf(":");
+            if (i < 0) continue;
+            var name = line.substring(0, i).trim().toLowerCase();
+            var value = line.substring(i + 1).trim();
+
+            if (name.length() == 0) continue;
+            headers.put(name, value);
+        }
+
+        if (headers.containsKey("content-length")) {
+            try {
+                var i = Integer.parseInt(headers.get("content-length"));
+                str.skip(i);
+            }
+            catch (IllegalFormatException e) { /* ¯\_(ツ)_/¯ */ }
+        }
+
+        return new HttpRequest(method, path, headers);
+    }
+}

dead-code/debug/HttpRequest.java

@@ -1,16 +1,16 @@
-package me.topchetoeu.jscript.engine.debug;
-
-import java.util.Map;
-
-public class HttpRequest {
-    public final String method;
-    public final String path;
-    public final Map<String, String> headers;
-
-    public HttpRequest(String method, String path, Map<String, String> headers) {
-        this.method = method;
-        this.path = path;
-        this.headers = headers;
-    }
-}
-
+package me.topchetoeu.jscript.engine.debug;
+
+import java.util.Map;
+
+public class HttpRequest {
+    public final String method;
+    public final String path;
+    public final Map<String, String> headers;
+
+    public HttpRequest(String method, String path, Map<String, String> headers) {
+        this.method = method;
+        this.path = path;
+        this.headers = headers;
+    }
+}
+

dead-code/debug/V8Error.java

@@ -1,19 +1,19 @@
-package me.topchetoeu.jscript.engine.debug;
-
-import me.topchetoeu.jscript.json.JSON;
-import me.topchetoeu.jscript.json.JSONMap;
-
-public class V8Error {
-    public final String message;
-
-    public V8Error(String message) {
-        this.message = message;
-    }
-
-    @Override
-    public String toString() {
-        return JSON.stringify(new JSONMap().set("error", new JSONMap()
-            .set("message", message)
-        ));
-    }
-}
+package me.topchetoeu.jscript.engine.debug;
+
+import me.topchetoeu.jscript.json.JSON;
+import me.topchetoeu.jscript.json.JSONMap;
+
+public class V8Error {
+    public final String message;
+
+    public V8Error(String message) {
+        this.message = message;
+    }
+
+    @Override
+    public String toString() {
+        return JSON.stringify(new JSONMap().set("error", new JSONMap()
+            .set("message", message)
+        ));
+    }
+}

dead-code/debug/V8Event.java

@@ -1,22 +1,22 @@
-package me.topchetoeu.jscript.engine.debug;
-
-import me.topchetoeu.jscript.json.JSON;
-import me.topchetoeu.jscript.json.JSONMap;
-
-public class V8Event {
-    public final String name;
-    public final JSONMap params;
-
-    public V8Event(String name, JSONMap params) {
-        this.name = name;
-        this.params = params;
-    }
-
-    @Override
-    public String toString() {
-        return JSON.stringify(new JSONMap()
-            .set("method", name)
-            .set("params", params)
-        );
-    }
-}
+package me.topchetoeu.jscript.engine.debug;
+
+import me.topchetoeu.jscript.json.JSON;
+import me.topchetoeu.jscript.json.JSONMap;
+
+public class V8Event {
+    public final String name;
+    public final JSONMap params;
+
+    public V8Event(String name, JSONMap params) {
+        this.name = name;
+        this.params = params;
+    }
+
+    @Override
+    public String toString() {
+        return JSON.stringify(new JSONMap()
+            .set("method", name)
+            .set("params", params)
+        );
+    }
+}

dead-code/debug/V8Message.java

@@ -1,50 +1,50 @@
-package me.topchetoeu.jscript.engine.debug;
-
-import java.util.Map;
-
-import me.topchetoeu.jscript.json.JSON;
-import me.topchetoeu.jscript.json.JSONElement;
-import me.topchetoeu.jscript.json.JSONMap;
-
-public class V8Message {
-    public final String name;
-    public final int id;
-    public final JSONMap params;
-
-    public V8Message(String name, int id, Map<String, JSONElement> params) {
-        this.name = name;
-        this.params = new JSONMap(params);
-        this.id = id;
-    }
-    public V8Result respond(JSONMap result) {
-        return new V8Result(id, result);
-    }
-    public V8Result respond() {
-        return new V8Result(id, new JSONMap());
-    }
-
-    public V8Message(JSONMap raw) {
-        if (!raw.isNumber("id")) throw new IllegalArgumentException("Expected number property 'id'.");
-        if (!raw.isString("method")) throw new IllegalArgumentException("Expected string property 'method'.");
-
-        this.name = raw.string("method");
-        this.id = (int)raw.number("id");
-        this.params = raw.contains("params") ? raw.map("params") : new JSONMap();
-    }
-    public V8Message(String raw) {
-        this(JSON.parse("json", raw).map());
-    }
-
-    public JSONMap toMap() {
-        var res = new JSONMap();
-        return res;
-    }
-    @Override
-    public String toString() {
-        return JSON.stringify(new JSONMap()
-            .set("method", name)
-            .set("params", params)
-            .set("id", id)
-        );
-    }
-}
+package me.topchetoeu.jscript.engine.debug;
+
+import java.util.Map;
+
+import me.topchetoeu.jscript.json.JSON;
+import me.topchetoeu.jscript.json.JSONElement;
+import me.topchetoeu.jscript.json.JSONMap;
+
+public class V8Message {
+    public final String name;
+    public final int id;
+    public final JSONMap params;
+
+    public V8Message(String name, int id, Map<String, JSONElement> params) {
+        this.name = name;
+        this.params = new JSONMap(params);
+        this.id = id;
+    }
+    public V8Result respond(JSONMap result) {
+        return new V8Result(id, result);
+    }
+    public V8Result respond() {
+        return new V8Result(id, new JSONMap());
+    }
+
+    public V8Message(JSONMap raw) {
+        if (!raw.isNumber("id")) throw new IllegalArgumentException("Expected number property 'id'.");
+        if (!raw.isString("method")) throw new IllegalArgumentException("Expected string property 'method'.");
+
+        this.name = raw.string("method");
+        this.id = (int)raw.number("id");
+        this.params = raw.contains("params") ? raw.map("params") : new JSONMap();
+    }
+    public V8Message(String raw) {
+        this(JSON.parse("json", raw).map());
+    }
+
+    public JSONMap toMap() {
+        var res = new JSONMap();
+        return res;
+    }
+    @Override
+    public String toString() {
+        return JSON.stringify(new JSONMap()
+            .set("method", name)
+            .set("params", params)
+            .set("id", id)
+        );
+    }
+}

dead-code/debug/V8Result.java

@@ -1,22 +1,22 @@
-package me.topchetoeu.jscript.engine.debug;
-
-import me.topchetoeu.jscript.json.JSON;
-import me.topchetoeu.jscript.json.JSONMap;
-
-public class V8Result {
-    public final int id;
-    public final JSONMap result;
-
-    public V8Result(int id, JSONMap result) {
-        this.id = id;
-        this.result = result;
-    }
-
-    @Override
-    public String toString() {
-        return JSON.stringify(new JSONMap()
-            .set("id", id)
-            .set("result", result)
-        );
-    }
-}
+package me.topchetoeu.jscript.engine.debug;
+
+import me.topchetoeu.jscript.json.JSON;
+import me.topchetoeu.jscript.json.JSONMap;
+
+public class V8Result {
+    public final int id;
+    public final JSONMap result;
+
+    public V8Result(int id, JSONMap result) {
+        this.id = id;
+        this.result = result;
+    }
+
+    @Override
+    public String toString() {
+        return JSON.stringify(new JSONMap()
+            .set("id", id)
+            .set("result", result)
+        );
+    }
+}

dead-code/debug/WebSocket.java

@@ -1,185 +1,185 @@
-package me.topchetoeu.jscript.engine.debug;
-
-import java.io.ByteArrayOutputStream;
-import java.io.IOException;
-import java.io.InputStream;
-import java.io.OutputStream;
-import java.net.Socket;
-
-import me.topchetoeu.jscript.engine.debug.WebSocketMessage.Type;
-
-public class WebSocket implements AutoCloseable {
-    public long maxLength = 2000000;
-
-    private Socket socket;
-    private boolean closed = false;
-
-    private OutputStream out() throws IOException {
-        return socket.getOutputStream();
-    }
-    private InputStream in() throws IOException {
-        return socket.getInputStream();
-    }
-
-    private long readLen(int byteLen) throws IOException {
-        long res = 0;
-
-        if (byteLen == 126) {
-            res |= in().read() << 8;
-            res |= in().read();
-            return res;
-        }
-        else if (byteLen == 127) {
-            res |= in().read() << 56;
-            res |= in().read() << 48;
-            res |= in().read() << 40;
-            res |= in().read() << 32;
-            res |= in().read() << 24;
-            res |= in().read() << 16;
-            res |= in().read() << 8;
-            res |= in().read();
-            return res;
-        }
-        else return byteLen;
-    }
-    private byte[] readMask(boolean has) throws IOException {
-        if (has) {
-            return new byte[] {
-                (byte)in().read(),
-                (byte)in().read(),
-                (byte)in().read(),
-                (byte)in().read()
-            };
-        }
-        else return new byte[4];
-    }
-
-    private void writeLength(long len) throws IOException {
-        if (len < 126) {
-            out().write((int)len);
-        }
-        else if (len < 0xFFFF) {
-            out().write(126);
-            out().write((int)(len >> 8) & 0xFF);
-            out().write((int)len & 0xFF);
-        }
-        else {
-            out().write(127);
-            out().write((int)(len >> 56) & 0xFF);
-            out().write((int)(len >> 48) & 0xFF);
-            out().write((int)(len >> 40) & 0xFF);
-            out().write((int)(len >> 32) & 0xFF);
-            out().write((int)(len >> 24) & 0xFF);
-            out().write((int)(len >> 16) & 0xFF);
-            out().write((int)(len >> 8) & 0xFF);
-            out().write((int)len & 0xFF);
-        }
-    }
-    private synchronized void write(int type, byte[] data) throws IOException {
-        out().write(type | 0x80);
-        writeLength(data.length);
-        for (int i = 0; i < data.length; i++) {
-            out().write(data[i]);
-        }
-    }
-
-    public void send(String data) throws IOException {
-        if (closed) throw new IllegalStateException("Object is closed.");
-        write(1, data.getBytes());
-    }
-    public void send(byte[] data) throws IOException {
-        if (closed) throw new IllegalStateException("Object is closed.");
-        write(2, data);
-    }
-    public void send(WebSocketMessage msg) throws IOException {
-        if (msg.type == Type.Binary) send(msg.binaryData());
-        else send(msg.textData());
-    }
-    public void send(Object data) throws IOException {
-        if (closed) throw new IllegalStateException("Object is closed.");
-        write(1, data.toString().getBytes());
-    }
-
-    public void close(String reason) {
-        if (socket != null) {
-            try { write(8, reason.getBytes()); } catch (IOException e) { /* ¯\_(ツ)_/¯ */ }
-            try { socket.close(); } catch (IOException e) { e.printStackTrace(); }
-        }
-
-        socket = null;
-        closed = true;
-    }
-    public void close() {
-        close("");
-    }
-
-    private WebSocketMessage fail(String reason) {
-        System.out.println("WebSocket Error: " + reason);
-        close(reason);
-        return null;
-    }
-
-    private byte[] readData() throws IOException {
-        var maskLen = in().read();
-        var hasMask = (maskLen & 0x80) != 0;
-        var len = (int)readLen(maskLen & 0x7F);
-        var mask = readMask(hasMask);
-
-        if (len > maxLength) fail("WebSocket Error: client exceeded configured max message size");
-        else {
-            var buff = new byte[len];
-
-            if (in().read(buff) < len) fail("WebSocket Error: payload too short");
-            else {
-                for (int i = 0; i < len; i++) {
-                    buff[i] ^= mask[(int)(i % 4)];
-                }
-                return buff;
-            }
-        }
-
-        return null;
-    }
-
-    public WebSocketMessage receive() throws InterruptedException {
-        try {
-            var data = new ByteArrayOutputStream();
-            var type = 0;
-
-            while (socket != null && !closed) {
-                var finId = in().read();
-                var fin = (finId & 0x80) != 0;
-                int id = finId & 0x0F;
-
-                if (id == 0x8) { close(); return null; }
-                if (id >= 0x8) {
-                    if (!fin) return fail("WebSocket Error: client-sent control frame was fragmented");
-                    if (id == 0x9) write(0xA, data.toByteArray());
-                    continue;
-                }
-
-                if (type == 0) type = id;
-                if (type == 0) return fail("WebSocket Error: client used opcode 0x00 for first fragment");
-
-                var buff = readData();
-                if (buff == null) break;
-
-                if (data.size() + buff.length > maxLength) return fail("WebSocket Error: client exceeded configured max message size");
-                data.write(buff);
-
-                if (!fin) continue;
-                var raw = data.toByteArray();
-
-                if (type == 1) return new WebSocketMessage(new String(raw));
-                else return new WebSocketMessage(raw);
-            }
-        }
-        catch (IOException e) { close(); }
-
-        return null;
-    }
-
-    public WebSocket(Socket socket) {
-        this.socket = socket;
-    }
-}
+package me.topchetoeu.jscript.engine.debug;
+
+import java.io.ByteArrayOutputStream;
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.OutputStream;
+import java.net.Socket;
+
+import me.topchetoeu.jscript.engine.debug.WebSocketMessage.Type;
+
+public class WebSocket implements AutoCloseable {
+    public long maxLength = 2000000;
+
+    private Socket socket;
+    private boolean closed = false;
+
+    private OutputStream out() throws IOException {
+        return socket.getOutputStream();
+    }
+    private InputStream in() throws IOException {
+        return socket.getInputStream();
+    }
+
+    private long readLen(int byteLen) throws IOException {
+        long res = 0;
+
+        if (byteLen == 126) {
+            res |= in().read() << 8;
+            res |= in().read();
+            return res;
+        }
+        else if (byteLen == 127) {
+            res |= in().read() << 56;
+            res |= in().read() << 48;
+            res |= in().read() << 40;
+            res |= in().read() << 32;
+            res |= in().read() << 24;
+            res |= in().read() << 16;
+            res |= in().read() << 8;
+            res |= in().read();
+            return res;
+        }
+        else return byteLen;
+    }
+    private byte[] readMask(boolean has) throws IOException {
+        if (has) {
+            return new byte[] {
+                (byte)in().read(),
+                (byte)in().read(),
+                (byte)in().read(),
+                (byte)in().read()
+            };
+        }
+        else return new byte[4];
+    }
+
+    private void writeLength(long len) throws IOException {
+        if (len < 126) {
+            out().write((int)len);
+        }
+        else if (len < 0xFFFF) {
+            out().write(126);
+            out().write((int)(len >> 8) & 0xFF);
+            out().write((int)len & 0xFF);
+        }
+        else {
+            out().write(127);
+            out().write((int)(len >> 56) & 0xFF);
+            out().write((int)(len >> 48) & 0xFF);
+            out().write((int)(len >> 40) & 0xFF);
+            out().write((int)(len >> 32) & 0xFF);
+            out().write((int)(len >> 24) & 0xFF);
+            out().write((int)(len >> 16) & 0xFF);
+            out().write((int)(len >> 8) & 0xFF);
+            out().write((int)len & 0xFF);
+        }
+    }
+    private synchronized void write(int type, byte[] data) throws IOException {
+        out().write(type | 0x80);
+        writeLength(data.length);
+        for (int i = 0; i < data.length; i++) {
+            out().write(data[i]);
+        }
+    }
+
+    public void send(String data) throws IOException {
+        if (closed) throw new IllegalStateException("Object is closed.");
+        write(1, data.getBytes());
+    }
+    public void send(byte[] data) throws IOException {
+        if (closed) throw new IllegalStateException("Object is closed.");
+        write(2, data);
+    }
+    public void send(WebSocketMessage msg) throws IOException {
+        if (msg.type == Type.Binary) send(msg.binaryData());
+        else send(msg.textData());
+    }
+    public void send(Object data) throws IOException {
+        if (closed) throw new IllegalStateException("Object is closed.");
+        write(1, data.toString().getBytes());
+    }
+
+    public void close(String reason) {
+        if (socket != null) {
+            try { write(8, reason.getBytes()); } catch (IOException e) { /* ¯\_(ツ)_/¯ */ }
+            try { socket.close(); } catch (IOException e) { e.printStackTrace(); }
+        }
+
+        socket = null;
+        closed = true;
+    }
+    public void close() {
+        close("");
+    }
+
+    private WebSocketMessage fail(String reason) {
+        System.out.println("WebSocket Error: " + reason);
+        close(reason);
+        return null;
+    }
+
+    private byte[] readData() throws IOException {
+        var maskLen = in().read();
+        var hasMask = (maskLen & 0x80) != 0;
+        var len = (int)readLen(maskLen & 0x7F);
+        var mask = readMask(hasMask);
+
+        if (len > maxLength) fail("WebSocket Error: client exceeded configured max message size");
+        else {
+            var buff = new byte[len];
+
+            if (in().read(buff) < len) fail("WebSocket Error: payload too short");
+            else {
+                for (int i = 0; i < len; i++) {
+                    buff[i] ^= mask[(int)(i % 4)];
+                }
+                return buff;
+            }
+        }
+
+        return null;
+    }
+
+    public WebSocketMessage receive() throws InterruptedException {
+        try {
+            var data = new ByteArrayOutputStream();
+            var type = 0;
+
+            while (socket != null && !closed) {
+                var finId = in().read();
+                var fin = (finId & 0x80) != 0;
+                int id = finId & 0x0F;
+
+                if (id == 0x8) { close(); return null; }
+                if (id >= 0x8) {
+                    if (!fin) return fail("WebSocket Error: client-sent control frame was fragmented");
+                    if (id == 0x9) write(0xA, data.toByteArray());
+                    continue;
+                }
+
+                if (type == 0) type = id;
+                if (type == 0) return fail("WebSocket Error: client used opcode 0x00 for first fragment");
+
+                var buff = readData();
+                if (buff == null) break;
+
+                if (data.size() + buff.length > maxLength) return fail("WebSocket Error: client exceeded configured max message size");
+                data.write(buff);
+
+                if (!fin) continue;
+                var raw = data.toByteArray();
+
+                if (type == 1) return new WebSocketMessage(new String(raw));
+                else return new WebSocketMessage(raw);
+            }
+        }
+        catch (IOException e) { close(); }
+
+        return null;
+    }
+
+    public WebSocket(Socket socket) {
+        this.socket = socket;
+    }
+}

dead-code/debug/WebSocketMessage.java

@@ -1,29 +1,29 @@
-package me.topchetoeu.jscript.engine.debug;
-
-public class WebSocketMessage {
-    public static enum Type {
-        Text,
-        Binary,
-    }
-
-    public final Type type;
-    private final Object data;
-
-    public final String textData() {
-        if (type != Type.Text) throw new IllegalStateException("Message is not text.");
-        return (String)data;
-    }
-    public final byte[] binaryData() {
-        if (type != Type.Binary) throw new IllegalStateException("Message is not binary.");
-        return (byte[])data;
-    }
-
-    public WebSocketMessage(String data) {
-        this.type = Type.Text;
-        this.data = data;
-    }
-    public WebSocketMessage(byte[] data) {
-        this.type = Type.Binary;
-        this.data = data;
-    }
-}
+package me.topchetoeu.jscript.engine.debug;
+
+public class WebSocketMessage {
+    public static enum Type {
+        Text,
+        Binary,
+    }
+
+    public final Type type;
+    private final Object data;
+
+    public final String textData() {
+        if (type != Type.Text) throw new IllegalStateException("Message is not text.");
+        return (String)data;
+    }
+    public final byte[] binaryData() {
+        if (type != Type.Binary) throw new IllegalStateException("Message is not binary.");
+        return (byte[])data;
+    }
+
+    public WebSocketMessage(String data) {
+        this.type = Type.Text;
+        this.data = data;
+    }
+    public WebSocketMessage(byte[] data) {
+        this.type = Type.Binary;
+        this.data = data;
+    }
+}

dead-code/debug/handlers/DebuggerHandles.java

@@ -1,29 +1,29 @@
-package me.topchetoeu.jscript.engine.debug.handlers;
-
-import java.io.IOException;
-
-import me.topchetoeu.jscript.engine.DebugCommand;
-import me.topchetoeu.jscript.engine.Engine;
-import me.topchetoeu.jscript.engine.debug.V8Error;
-import me.topchetoeu.jscript.engine.debug.V8Message;
-import me.topchetoeu.jscript.engine.debug.WebSocket;
-import me.topchetoeu.jscript.json.JSONMap;
-
-public class DebuggerHandles {
-    public static void enable(V8Message msg, Engine engine, WebSocket ws) throws IOException {
-        if (engine.debugState == null) ws.send(new V8Error("Debugging is disabled for this engine."));
-        else ws.send(msg.respond(new JSONMap().set("debuggerId", 1)));
-    }
-    public static void disable(V8Message msg, Engine engine, WebSocket ws) throws IOException {
-        if (engine.debugState == null) ws.send(msg.respond());
-        else ws.send(new V8Error("Debugger may not be disabled."));
-    }
-    public static void stepInto(V8Message msg, Engine engine, WebSocket ws) throws IOException {
-        if (engine.debugState == null) ws.send(new V8Error("Debugging is disabled for this engine."));
-        else if (!engine.debugState.paused()) ws.send(new V8Error("Debugger is not paused."));
-        else {
-            engine.debugState.resume(DebugCommand.STEP_INTO);
-            ws.send(msg.respond());
-        }
-    }
-}
+package me.topchetoeu.jscript.engine.debug.handlers;
+
+import java.io.IOException;
+
+import me.topchetoeu.jscript.engine.DebugCommand;
+import me.topchetoeu.jscript.engine.Engine;
+import me.topchetoeu.jscript.engine.debug.V8Error;
+import me.topchetoeu.jscript.engine.debug.V8Message;
+import me.topchetoeu.jscript.engine.debug.WebSocket;
+import me.topchetoeu.jscript.json.JSONMap;
+
+public class DebuggerHandles {
+    public static void enable(V8Message msg, Engine engine, WebSocket ws) throws IOException {
+        if (engine.debugState == null) ws.send(new V8Error("Debugging is disabled for this engine."));
+        else ws.send(msg.respond(new JSONMap().set("debuggerId", 1)));
+    }
+    public static void disable(V8Message msg, Engine engine, WebSocket ws) throws IOException {
+        if (engine.debugState == null) ws.send(msg.respond());
+        else ws.send(new V8Error("Debugger may not be disabled."));
+    }
+    public static void stepInto(V8Message msg, Engine engine, WebSocket ws) throws IOException {
+        if (engine.debugState == null) ws.send(new V8Error("Debugging is disabled for this engine."));
+        else if (!engine.debugState.paused()) ws.send(new V8Error("Debugger is not paused."));
+        else {
+            engine.debugState.resume(DebugCommand.STEP_INTO);
+            ws.send(msg.respond());
+        }
+    }
+}

dead-code/modules/FileModuleProvider.java

@@ -1,50 +1,50 @@
-package me.topchetoeu.jscript.engine.modules;
-
-import java.io.File;
-import java.io.FileInputStream;
-import java.io.IOException;
-import java.nio.file.Path;
-
-import me.topchetoeu.jscript.polyfills.PolyfillEngine;
-
-public class FileModuleProvider implements ModuleProvider {
-    public File root;
-    public final boolean allowOutside;
-
-    private boolean checkInside(Path modFile) {
-        return modFile.toAbsolutePath().startsWith(root.toPath().toAbsolutePath());
-    }
-
-    @Override
-    public Module getModule(File cwd, String name) {
-        var realName = getRealName(cwd, name);
-        if (realName == null) return null;
-        var path = Path.of(realName + ".js").normalize();
-
-        try {
-            var res = PolyfillEngine.streamToString(new FileInputStream(path.toFile()));
-            return new Module(realName, path.toString(), res);
-        }
-        catch (IOException e) {
-            return null;
-        }
-    }
-    @Override
-    public String getRealName(File cwd, String name) {
-        var path = Path.of(".", Path.of(cwd.toString(), name).normalize().toString());
-        var fileName = path.getFileName().toString();
-        if (fileName == null) return null;
-        if (!fileName.equals("index") && path.toFile().isDirectory()) return getRealName(cwd, name + "/index");
-        path = Path.of(path.toString() + ".js");
-        if (!allowOutside && !checkInside(path)) return null;
-        if (!path.toFile().isFile() || !path.toFile().canRead()) return null;
-        var res = path.toString().replace('\\', '/');
-        var i = res.lastIndexOf('.');
-        return res.substring(0, i);
-    }
-
-    public FileModuleProvider(File root, boolean allowOutside) {
-        this.root = root.toPath().normalize().toFile();
-        this.allowOutside = allowOutside;
-    }
-}
+package me.topchetoeu.jscript.engine.modules;
+
+import java.io.File;
+import java.io.FileInputStream;
+import java.io.IOException;
+import java.nio.file.Path;
+
+import me.topchetoeu.jscript.polyfills.PolyfillEngine;
+
+public class FileModuleProvider implements ModuleProvider {
+    public File root;
+    public final boolean allowOutside;
+
+    private boolean checkInside(Path modFile) {
+        return modFile.toAbsolutePath().startsWith(root.toPath().toAbsolutePath());
+    }
+
+    @Override
+    public Module getModule(File cwd, String name) {
+        var realName = getRealName(cwd, name);
+        if (realName == null) return null;
+        var path = Path.of(realName + ".js").normalize();
+
+        try {
+            var res = PolyfillEngine.streamToString(new FileInputStream(path.toFile()));
+            return new Module(realName, path.toString(), res);
+        }
+        catch (IOException e) {
+            return null;
+        }
+    }
+    @Override
+    public String getRealName(File cwd, String name) {
+        var path = Path.of(".", Path.of(cwd.toString(), name).normalize().toString());
+        var fileName = path.getFileName().toString();
+        if (fileName == null) return null;
+        if (!fileName.equals("index") && path.toFile().isDirectory()) return getRealName(cwd, name + "/index");
+        path = Path.of(path.toString() + ".js");
+        if (!allowOutside && !checkInside(path)) return null;
+        if (!path.toFile().isFile() || !path.toFile().canRead()) return null;
+        var res = path.toString().replace('\\', '/');
+        var i = res.lastIndexOf('.');
+        return res.substring(0, i);
+    }
+
+    public FileModuleProvider(File root, boolean allowOutside) {
+        this.root = root.toPath().normalize().toFile();
+        this.allowOutside = allowOutside;
+    }
+}

dead-code/modules/Module.java

@@ -1,57 +1,57 @@
-package me.topchetoeu.jscript.engine.modules;
-
-import java.io.File;
-
-import me.topchetoeu.jscript.engine.CallContext;
-import me.topchetoeu.jscript.engine.CallContext.DataKey;
-import me.topchetoeu.jscript.engine.scope.Variable;
-import me.topchetoeu.jscript.engine.values.ObjectValue;
-import me.topchetoeu.jscript.interop.NativeGetter;
-import me.topchetoeu.jscript.interop.NativeSetter;
-
-public class Module {
-    public class ExportsVariable implements Variable {
-        @Override
-        public boolean readonly() { return false; }
-        @Override
-        public Object get(CallContext ctx) { return exports; }
-        @Override
-        public void set(CallContext ctx, Object val) { exports = val; }
-    }
-
-    public static DataKey<Module> KEY = new DataKey<>();
-
-    public final String filename;
-    public final String source;
-    public final String name;
-    private Object exports = new ObjectValue();
-    private boolean executing = false;
-
-    @NativeGetter("name")
-    public String name() { return name; }
-    @NativeGetter("exports")
-    public Object exports() { return exports; }
-    @NativeSetter("exports")
-    public void setExports(Object val) { exports = val; }
-
-    public void execute(CallContext ctx) throws InterruptedException {
-        if (executing) return;
-
-        executing = true;
-        var scope = ctx.engine().global().globalChild();
-        scope.define("module", true, this);
-        scope.define("exports", new ExportsVariable());
-
-        var parent = new File(filename).getParentFile();
-        if (parent == null) parent = new File(".");
-
-        ctx.engine().compile(scope, filename, source).call(ctx.copy().setData(KEY, this), null);
-        executing = false;
-    }
-
-    public Module(String name, String filename, String source) {
-        this.name = name;
-        this.filename = filename;
-        this.source = source;
-    }
-}
+package me.topchetoeu.jscript.engine.modules;
+
+import java.io.File;
+
+import me.topchetoeu.jscript.engine.CallContext;
+import me.topchetoeu.jscript.engine.CallContext.DataKey;
+import me.topchetoeu.jscript.engine.scope.Variable;
+import me.topchetoeu.jscript.engine.values.ObjectValue;
+import me.topchetoeu.jscript.interop.NativeGetter;
+import me.topchetoeu.jscript.interop.NativeSetter;
+
+public class Module {
+    public class ExportsVariable implements Variable {
+        @Override
+        public boolean readonly() { return false; }
+        @Override
+        public Object get(CallContext ctx) { return exports; }
+        @Override
+        public void set(CallContext ctx, Object val) { exports = val; }
+    }
+
+    public static DataKey<Module> KEY = new DataKey<>();
+
+    public final String filename;
+    public final String source;
+    public final String name;
+    private Object exports = new ObjectValue();
+    private boolean executing = false;
+
+    @NativeGetter("name")
+    public String name() { return name; }
+    @NativeGetter("exports")
+    public Object exports() { return exports; }
+    @NativeSetter("exports")
+    public void setExports(Object val) { exports = val; }
+
+    public void execute(CallContext ctx) throws InterruptedException {
+        if (executing) return;
+
+        executing = true;
+        var scope = ctx.engine().global().globalChild();
+        scope.define(null, "module", true, this);
+        scope.define("exports", new ExportsVariable());
+
+        var parent = new File(filename).getParentFile();
+        if (parent == null) parent = new File(".");
+
+        ctx.engine().compile(scope, filename, source).call(ctx.copy().setData(KEY, this), null);
+        executing = false;
+    }
+
+    public Module(String name, String filename, String source) {
+        this.name = name;
+        this.filename = filename;
+        this.source = source;
+    }
+}

dead-code/modules/ModuleManager.java

@@ -1,80 +1,80 @@
-package me.topchetoeu.jscript.engine.modules;
-
-import java.io.File;
-import java.nio.file.Path;
-import java.util.ArrayList;
-import java.util.HashMap;
-import java.util.List;
-
-import me.topchetoeu.jscript.engine.CallContext;
-
-public class ModuleManager {
-    private final List<ModuleProvider> providers = new ArrayList<>();
-    private final HashMap<String, Module> cache = new HashMap<>();
-    public final FileModuleProvider files;
-
-    public void addProvider(ModuleProvider provider) {
-        this.providers.add(provider);
-    }
-
-    public boolean isCached(File cwd, String name) {
-        name = name.replace("\\", "/");
-
-        // Absolute paths are forbidden
-        if (name.startsWith("/")) return false;
-        // Look for files if we have a relative path
-        if (name.startsWith("../") || name.startsWith("./")) {
-            var realName = files.getRealName(cwd, name);
-            if (cache.containsKey(realName)) return true;
-            else return false;
-        }
-
-        for (var provider : providers) {
-            var realName = provider.getRealName(cwd, name);
-            if (realName == null) continue;
-            if (cache.containsKey(realName)) return true;
-        }
-
-        return false;
-    }
-    public Module tryLoad(CallContext ctx, String name) throws InterruptedException {
-        name = name.replace('\\', '/');
-
-        var pcwd = Path.of(".");
-
-        if (ctx.hasData(Module.KEY)) {
-            pcwd = Path.of(((Module)ctx.getData(Module.KEY)).filename).getParent();
-            if (pcwd == null) pcwd = Path.of(".");
-        }
-
-
-        var cwd = pcwd.toFile();
-
-        if (name.startsWith("/")) return null;
-        if (name.startsWith("../") || name.startsWith("./")) {
-            var realName = files.getRealName(cwd, name);
-            if (realName == null) return null;
-            if (cache.containsKey(realName)) return cache.get(realName);
-            var mod = files.getModule(cwd, name);
-            cache.put(mod.name(), mod);
-            mod.execute(ctx);
-            return mod;
-        }
-
-        for (var provider : providers) {
-            var realName = provider.getRealName(cwd, name);
-            if (realName == null) continue;
-            if (cache.containsKey(realName)) return cache.get(realName);
-            var mod = provider.getModule(cwd, name);
-            cache.put(mod.name(), mod);
-            mod.execute(ctx);
-            return mod;
-        }
-
-        return null;
-    }
-
-    public ModuleManager(File root) {
-        files = new FileModuleProvider(root, false);
-    }
-}
+package me.topchetoeu.jscript.engine.modules;
+
+import java.io.File;
+import java.nio.file.Path;
+import java.util.ArrayList;
+import java.util.HashMap;
+import java.util.List;
+
+import me.topchetoeu.jscript.engine.CallContext;
+
+public class ModuleManager {
+    private final List<ModuleProvider> providers = new ArrayList<>();
+    private final HashMap<String, Module> cache = new HashMap<>();
+    public final FileModuleProvider files;
+
+    public void addProvider(ModuleProvider provider) {
+        this.providers.add(provider);
+    }
+
+    public boolean isCached(File cwd, String name) {
+        name = name.replace("\\", "/");
+
+        // Absolute paths are forbidden
+        if (name.startsWith("/")) return false;
+        // Look for files if we have a relative path
+        if (name.startsWith("../") || name.startsWith("./")) {
+            var realName = files.getRealName(cwd, name);
+            if (cache.containsKey(realName)) return true;
+            else return false;
+        }
+
+        for (var provider : providers) {
+            var realName = provider.getRealName(cwd, name);
+            if (realName == null) continue;
+            if (cache.containsKey(realName)) return true;
+        }
+
+        return false;
+    }
+    public Module tryLoad(CallContext ctx, String name) throws InterruptedException {
+        name = name.replace('\\', '/');
+
+        var pcwd = Path.of(".");
+
+        if (ctx.hasData(Module.KEY)) {
+            pcwd = Path.of(((Module)ctx.getData(Module.KEY)).filename).getParent();
+            if (pcwd == null) pcwd = Path.of(".");
+        }
+
+
+        var cwd = pcwd.toFile();
+
+        if (name.startsWith("/")) return null;
+        if (name.startsWith("../") || name.startsWith("./")) {
+            var realName = files.getRealName(cwd, name);
+            if (realName == null) return null;
+            if (cache.containsKey(realName)) return cache.get(realName);
+            var mod = files.getModule(cwd, name);
+            cache.put(mod.name(), mod);
+            mod.execute(ctx);
+            return mod;
+        }
+
+        for (var provider : providers) {
+            var realName = provider.getRealName(cwd, name);
+            if (realName == null) continue;
+            if (cache.containsKey(realName)) return cache.get(realName);
+            var mod = provider.getModule(cwd, name);
+            cache.put(mod.name(), mod);
+            mod.execute(ctx);
+            return mod;
+        }
+
+        return null;
+    }
+
+    public ModuleManager(File root) {
+        files = new FileModuleProvider(root, false);
+    }
+}

dead-code/modules/ModuleProvider.java

@@ -1,9 +1,9 @@
-package me.topchetoeu.jscript.engine.modules;
-
-import java.io.File;
-
-public interface ModuleProvider {
-    Module getModule(File cwd, String name);
-    String getRealName(File cwd, String name);
-    default boolean hasModule(File cwd, String name) { return getRealName(cwd, name) != null; }
+package me.topchetoeu.jscript.engine.modules;
+
+import java.io.File;
+
+public interface ModuleProvider {
+    Module getModule(File cwd, String name);
+    String getRealName(File cwd, String name);
+    default boolean hasModule(File cwd, String name) { return getRealName(cwd, name) != null; }
 }

lib/core.ts

@@ -1,191 +1,71 @@
-type PropertyDescriptor<T, ThisT> = {
-    value: any;
-    writable?: boolean;
-    enumerable?: boolean;
-    configurable?: boolean;
-} | {
-    get?(this: ThisT): T;
-    set(this: ThisT, val: T): void;
-    enumerable?: boolean;
-    configurable?: boolean;
-} | {
-    get(this: ThisT): T;
-    set?(this: ThisT, val: T): void;
-    enumerable?: boolean;
-    configurable?: boolean;
-};
-type Exclude<T, U> = T extends U ? never : T;
-type Extract<T, U> = T extends U ? T : never;
-type Record<KeyT extends string | number | symbol, ValT> = { [x in KeyT]: ValT }
-
-interface IArguments {
-    [i: number]: any;
-    length: number;
+interface Environment {
+    global: typeof globalThis & Record<string, any>;
+    proto(name: string): object;
+    setProto(name: string, val: object): void;
 }
+interface Internals {
+    markSpecial(...funcs: Function[]): void;
+    getEnv(func: Function): Environment | undefined;
+    setEnv<T>(func: T, env: Environment): T;
+    apply(func: Function, thisArg: any, args: any[]): any;
+    delay(timeout: number, callback: Function): () => void;
+    pushMessage(micro: boolean, func: Function, thisArg: any, args: any[]): void;
 
-interface MathObject {
-    readonly E: number;
-    readonly PI: number;
-    readonly SQRT2: number;
-    readonly SQRT1_2: number;
-    readonly LN2: number;
-    readonly LN10: number;
-    readonly LOG2E: number;
-    readonly LOG10E: number;
+    strlen(val: string): number;
+    char(val: string): number;
+    stringFromStrings(arr: string[]): string;
+    stringFromChars(arr: number[]): string;
+    symbol(name?: string): symbol;
+    symbolToString(sym: symbol): string;
 
-    asin(x: number): number;
-    acos(x: number): number;
-    atan(x: number): number;
-    atan2(y: number, x: number): number;
-    asinh(x: number): number;
-    acosh(x: number): number;
-    atanh(x: number): number;
-    sin(x: number): number;
-    cos(x: number): number;
-    tan(x: number): number;
-    sinh(x: number): number;
-    cosh(x: number): number;
-    tanh(x: number): number;
-    sqrt(x: number): number;
-    cbrt(x: number): number;
-    hypot(...vals: number[]): number;
-    imul(a: number, b: number): number;
-    exp(x: number): number;
-    expm1(x: number): number;
-    pow(x: number, y: number): number;
-    log(x: number): number;
-    log10(x: number): number;
-    log1p(x: number): number;
-    log2(x: number): number;
-    ceil(x: number): number;
-    floor(x: number): number;
-    round(x: number): number;
-    fround(x: number): number;
-    trunc(x: number): number;
-    abs(x: number): number;
-    max(...vals: number[]): number;
-    min(...vals: number[]): number;
-    sign(x: number): number;
-    random(): number;
-    clz32(x: number): number;
-}
+    isArray(obj: any): boolean;
+    generator(func: (_yield: <T>(val: T) => unknown) => (...args: any[]) => unknown): GeneratorFunction;
+    defineField(obj: object, key: any, val: any, writable: boolean, enumerable: boolean, configurable: boolean): boolean;
+    defineProp(obj: object, key: any, get: Function | undefined, set: Function | undefined, enumerable: boolean, configurable: boolean): boolean;
+    keys(obj: object, onlyString: boolean): any[];
+    ownProp(obj: any, key: string): PropertyDescriptor<any, any>;
+    ownPropKeys(obj: any): any[];
+    lock(obj: object, type: 'ext' | 'seal' | 'freeze'): void;
+    extensible(obj: object): boolean;
 
+    sort(arr: any[], comaprator: (a: any, b: any) => number): void;
 
-//@ts-ignore
-declare const arguments: IArguments;
-declare const Math: MathObject;
-
-declare var setTimeout: <T extends any[]>(handle: (...args: [ ...T, ...any[] ]) => void, delay?: number, ...args: T) => number;
-declare var setInterval: <T extends any[]>(handle: (...args: [ ...T, ...any[] ]) => void, delay?: number, ...args: T) => number;
-
-declare var clearTimeout: (id: number) => void;
-declare var clearInterval: (id: number) => void;
-
-/** @internal */
-declare var internals: any;
-/** @internal */
-declare function run(file: string, pollute?: boolean): void;
-
-/** @internal */
-type ReplaceThis<T, ThisT> = T extends ((...args: infer ArgsT) => infer RetT) ?
-    ((this: ThisT, ...args: ArgsT) => RetT) :
-    T;
-
-/** @internal */
-declare var setProps: <
-    TargetT extends object,
-    DescT extends { [x in Exclude<keyof TargetT, 'constructor'> ]?: ReplaceThis<TargetT[x], TargetT> }
->(target: TargetT, desc: DescT) => void;
-/** @internal */
-declare var setConstr: <ConstrT, T extends { constructor: ConstrT }>(target: T, constr: ConstrT) => void;
-
-declare function log(...vals: any[]): void;
-/** @internal */
-declare var lgt: typeof globalThis, gt: typeof globalThis;
-
-declare function assert(condition: () => unknown, message?: string): boolean;
-
-gt.assert = (cond, msg) => {
-    try {
-        if (!cond()) throw 'condition not satisfied';
-        log('Passed ' + msg);
-        return true;
-    }
-    catch (e) {
-        log('Failed ' + msg + ' because of: ' + e);
-        return false;
+    constructor: {
+        log(...args: any[]): void;
     }
 }
 
+var env: Environment = arguments[0], internals: Internals = arguments[1];
+globalThis.log = internals.constructor.log;
+
 try {
-    lgt.setProps = (target, desc) => {
-        var props = internals.keys(desc, false);
-        for (var i = 0; i < props.length; i++) {
-            var key = props[i];
-            internals.defineField(
-                target, key, (desc as any)[key],
-                true, // writable
-                false, // enumerable
-                true // configurable
-            );
-        }
-    }
-    lgt.setConstr = (target, constr) => {
-        internals.defineField(
-            target, 'constructor', constr,
-            true, // writable
-            false, // enumerable
-            true // configurable
-        );
-    }
-    
-    run('values/object.js');
-    run('values/symbol.js');
-    run('values/function.js');
-    run('values/errors.js');
-    run('values/string.js');
-    run('values/number.js');
-    run('values/boolean.js');
-    run('values/array.js');
-    
-    internals.special(Object, Function, Error, Array);
-    
-    gt.setTimeout = (func, delay, ...args) => {
-        if (typeof func !== 'function') throw new TypeError("func must be a function.");
-        delay = (delay ?? 0) - 0;
-        return internals.setTimeout(() => func(...args), delay)
-    };
-    gt.setInterval = (func, delay, ...args) => {
-        if (typeof func !== 'function') throw new TypeError("func must be a function.");
-        delay = (delay ?? 0) - 0;
-        return internals.setInterval(() => func(...args), delay)
-    };
-    
-    gt.clearTimeout = (id) => {
-        id = id | 0;
-        internals.clearTimeout(id);
-    };
-    gt.clearInterval = (id) => {
-        id = id | 0;
-        internals.clearInterval(id);
-    };
-    
-    
-    run('iterators.js');
-    run('promise.js');
-    run('map.js', true);
-    run('set.js', true);
-    run('regex.js');
-    run('require.js');
-    
+    run('values/object');
+    run('values/symbol');
+    run('values/function');
+    run('values/errors');
+    run('values/string');
+    run('values/number');
+    run('values/boolean');
+    run('values/array');
+    run('promise');
+    run('map');
+    run('set');
+    run('regex');
+    run('timeout');
+
+    env.global.log = log;
+
     log('Loaded polyfills!');
 }
 catch (e: any) {
-    var err = 'Uncaught error while loading polyfills: ';
+    let err = 'Uncaught error while loading polyfills: ';
+
     if (typeof Error !== 'undefined' && e instanceof Error && e.toString !== {}.toString) err += e;
     else if ('message' in e) {
         if ('name' in e) err += e.name + ": " + e.message;
         else err += 'Error: ' + e.message;
     }
     else err += e;
-}
+
+    log(e);
+}

lib/iterators.ts

@@ -1,216 +0,0 @@
-interface SymbolConstructor {
-    readonly iterator: unique symbol;
-    readonly asyncIterator: unique symbol;
-}
-
-type IteratorYieldResult<TReturn> =
-    { done?: false; } &
-    (TReturn extends undefined ? { value?: undefined; } : { value: TReturn; });
-
-type IteratorReturnResult<TReturn> =
-    { done: true } &
-    (TReturn extends undefined ? { value?: undefined; } : { value: TReturn; });
-
-type IteratorResult<T, TReturn = any> = IteratorYieldResult<T> | IteratorReturnResult<TReturn>;
-
-interface Iterator<T, TReturn = any, TNext = undefined> {
-    next(...args: [] | [TNext]): IteratorResult<T, TReturn>;
-    return?(value?: TReturn): IteratorResult<T, TReturn>;
-    throw?(e?: any): IteratorResult<T, TReturn>;
-}
-
-interface Iterable<T> {
-    [Symbol.iterator](): Iterator<T>;
-}
-
-interface IterableIterator<T> extends Iterator<T> {
-    [Symbol.iterator](): IterableIterator<T>;
-}
-
-interface Generator<T = unknown, TReturn = any, TNext = unknown> extends Iterator<T, TReturn, TNext> {
-    // NOTE: 'next' is defined using a tuple to ensure we report the correct assignability errors in all places.
-    next(...args: [] | [TNext]): IteratorResult<T, TReturn>;
-    return(value: TReturn): IteratorResult<T, TReturn>;
-    throw(e: any): IteratorResult<T, TReturn>;
-    [Symbol.iterator](): Generator<T, TReturn, TNext>;
-}
-
-interface GeneratorFunction {
-    /**
-     * Creates a new Generator object.
-     * @param args A list of arguments the function accepts.
-     */
-    new (...args: any[]): Generator;
-    /**
-     * Creates a new Generator object.
-     * @param args A list of arguments the function accepts.
-     */
-    (...args: any[]): Generator;
-    /**
-     * The length of the arguments.
-     */
-    readonly length: number;
-    /**
-     * Returns the name of the function.
-     */
-    readonly name: string;
-    /**
-     * A reference to the prototype.
-     */
-    readonly prototype: Generator;
-}
-
-interface GeneratorFunctionConstructor {
-    /**
-     * Creates a new Generator function.
-     * @param args A list of arguments the function accepts.
-     */
-    new (...args: string[]): GeneratorFunction;
-    /**
-     * Creates a new Generator function.
-     * @param args A list of arguments the function accepts.
-     */
-    (...args: string[]): GeneratorFunction;
-    /**
-     * The length of the arguments.
-     */
-    readonly length: number;
-    /**
-     * Returns the name of the function.
-     */
-    readonly name: string;
-    /**
-     * A reference to the prototype.
-     */
-}
-
-interface AsyncIterator<T, TReturn = any, TNext = undefined> {
-    // NOTE: 'next' is defined using a tuple to ensure we report the correct assignability errors in all places.
-    next(...args: [] | [TNext]): Promise<IteratorResult<T, TReturn>>;
-    return?(value?: TReturn | Thenable<TReturn>): Promise<IteratorResult<T, TReturn>>;
-    throw?(e?: any): Promise<IteratorResult<T, TReturn>>;
-}
-
-interface AsyncIterable<T> {
-    [Symbol.asyncIterator](): AsyncIterator<T>;
-}
-
-interface AsyncIterableIterator<T> extends AsyncIterator<T> {
-    [Symbol.asyncIterator](): AsyncIterableIterator<T>;
-}
-
-interface AsyncGenerator<T = unknown, TReturn = any, TNext = unknown> extends AsyncIterator<T, TReturn, TNext> {
-    // NOTE: 'next' is defined using a tuple to ensure we report the correct assignability errors in all places.
-    next(...args: [] | [TNext]): Promise<IteratorResult<T, TReturn>>;
-    return(value: TReturn | Thenable<TReturn>): Promise<IteratorResult<T, TReturn>>;
-    throw(e: any): Promise<IteratorResult<T, TReturn>>;
-    [Symbol.asyncIterator](): AsyncGenerator<T, TReturn, TNext>;
-}
-
-interface AsyncGeneratorFunction {
-    /**
-     * Creates a new AsyncGenerator object.
-     * @param args A list of arguments the function accepts.
-     */
-    new (...args: any[]): AsyncGenerator;
-    /**
-     * Creates a new AsyncGenerator object.
-     * @param args A list of arguments the function accepts.
-     */
-    (...args: any[]): AsyncGenerator;
-    /**
-     * The length of the arguments.
-     */
-    readonly length: number;
-    /**
-     * Returns the name of the function.
-     */
-    readonly name: string;
-    /**
-     * A reference to the prototype.
-     */
-    readonly prototype: AsyncGenerator;
-}
-
-interface AsyncGeneratorFunctionConstructor {
-    /**
-     * Creates a new AsyncGenerator function.
-     * @param args A list of arguments the function accepts.
-     */
-    new (...args: string[]): AsyncGeneratorFunction;
-    /**
-     * Creates a new AsyncGenerator function.
-     * @param args A list of arguments the function accepts.
-     */
-    (...args: string[]): AsyncGeneratorFunction;
-    /**
-     * The length of the arguments.
-     */
-    readonly length: number;
-    /**
-     * Returns the name of the function.
-     */
-    readonly name: string;
-    /**
-     * A reference to the prototype.
-     */
-    readonly prototype: AsyncGeneratorFunction;
-}
-
-
-interface Array<T> extends IterableIterator<T> {
-    entries(): IterableIterator<[number, T]>;
-    values(): IterableIterator<T>;
-    keys(): IterableIterator<number>;
-}
-
-setProps(Symbol, {
-    iterator: Symbol("Symbol.iterator") as any,
-    asyncIterator: Symbol("Symbol.asyncIterator") as any,
-});
-
-setProps(Array.prototype, {
-    [Symbol.iterator]: function() {
-        return this.values();
-    },
-
-    values() {
-        var i = 0;
-
-        return {
-            next: () => {
-                while (i < this.length) {
-                    if (i++ in this) return { done: false, value: this[i - 1] };
-                }
-                return { done: true, value: undefined };
-            },
-            [Symbol.iterator]() { return this; }
-        };
-    },
-    keys() {
-        var i = 0;
-
-        return {
-            next: () => {
-                while (i < this.length) {
-                    if (i++ in this) return { done: false, value: i - 1 };
-                }
-                return { done: true, value: undefined };
-            },
-            [Symbol.iterator]() { return this; }
-        };
-    },
-    entries() {
-        var i = 0;
-
-        return {
-            next: () => {
-                while (i < this.length) {
-                    if (i++ in this) return { done: false, value: [i - 1, this[i - 1]] };
-                }
-                return { done: true, value: undefined };
-            },
-            [Symbol.iterator]() { return this; }
-        };
-    },
-});

lib/lib.d.ts

@@ -0,0 +1,586 @@
+type PropertyDescriptor<T, ThisT> = {
+    value: any;
+    writable?: boolean;
+    enumerable?: boolean;
+    configurable?: boolean;
+} | {
+    get?(this: ThisT): T;
+    set(this: ThisT, val: T): void;
+    enumerable?: boolean;
+    configurable?: boolean;
+} | {
+    get(this: ThisT): T;
+    set?(this: ThisT, val: T): void;
+    enumerable?: boolean;
+    configurable?: boolean;
+};
+type Exclude<T, U> = T extends U ? never : T;
+type Extract<T, U> = T extends U ? T : never;
+type Record<KeyT extends string | number | symbol, ValT> = { [x in KeyT]: ValT }
+type ReplaceFunc = (match: string, ...args: any[]) => string;
+
+type PromiseFulfillFunc<T> = (val: T) => void;
+type PromiseThenFunc<T, NextT> = (val: T) => NextT;
+type PromiseRejectFunc = (err: unknown) => void;
+type PromiseFunc<T> = (resolve: PromiseFulfillFunc<T>, reject: PromiseRejectFunc) => void;
+
+type PromiseResult<T> ={ type: 'fulfilled'; value: T; } | { type: 'rejected'; reason: any; }
+
+// wippidy-wine, this code is now mine :D
+type Awaited<T> =
+    T extends null | undefined ? T : // special case for `null | undefined` when not in `--strictNullChecks` mode
+        T extends object & { then(onfulfilled: infer F, ...args: infer _): any } ? // `await` only unwraps object types with a callable `then`. Non-object types are not unwrapped
+            F extends ((value: infer V, ...args: infer _) => any) ? // if the argument to `then` is callable, extracts the first argument
+                Awaited<V> : // recursively unwrap the value
+                never : // the argument to `then` was not callable
+        T;
+
+type IteratorYieldResult<TReturn> =
+    { done?: false; } &
+    (TReturn extends undefined ? { value?: undefined; } : { value: TReturn; });
+
+type IteratorReturnResult<TReturn> =
+    { done: true } &
+    (TReturn extends undefined ? { value?: undefined; } : { value: TReturn; });
+
+type IteratorResult<T, TReturn = any> = IteratorYieldResult<T> | IteratorReturnResult<TReturn>;
+
+interface Thenable<T> {
+    then<NextT>(onFulfilled: PromiseThenFunc<T, NextT>, onRejected?: PromiseRejectFunc): Promise<Awaited<NextT>>;
+    then(onFulfilled: undefined, onRejected?: PromiseRejectFunc): Promise<T>;
+}
+
+interface RegExpResultIndices extends Array<[number, number]> {
+    groups?: { [name: string]: [number, number]; };
+}
+interface RegExpResult extends Array<string> {
+    groups?: { [name: string]: string; };
+    index: number;
+    input: string;
+    indices?: RegExpResultIndices;
+    escape(raw: string, flags: string): RegExp;
+}
+
+interface Matcher {
+    [Symbol.match](target: string): RegExpResult | string[] | null;
+    [Symbol.matchAll](target: string): IterableIterator<RegExpResult>;
+}
+interface Splitter {
+    [Symbol.split](target: string, limit?: number, sensible?: boolean): string[];
+}
+interface Replacer {
+    [Symbol.replace](target: string, replacement: string | ReplaceFunc): string;
+}
+interface Searcher {
+    [Symbol.search](target: string, reverse?: boolean, start?: number): number;
+}
+
+type FlatArray<Arr, Depth extends number> = {
+    "done": Arr,
+    "recur": Arr extends Array<infer InnerArr>
+        ? FlatArray<InnerArr, [-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20][Depth]>
+        : Arr
+}[Depth extends -1 ? "done" : "recur"];
+
+interface IArguments {
+    [i: number]: any;
+    length: number;
+}
+
+interface Iterator<T, TReturn = any, TNext = undefined> {
+    next(...args: [] | [TNext]): IteratorResult<T, TReturn>;
+    return?(value?: TReturn): IteratorResult<T, TReturn>;
+    throw?(e?: any): IteratorResult<T, TReturn>;
+}
+interface Iterable<T> {
+    [Symbol.iterator](): Iterator<T>;
+}
+interface IterableIterator<T> extends Iterator<T> {
+    [Symbol.iterator](): IterableIterator<T>;
+}
+
+interface AsyncIterator<T, TReturn = any, TNext = undefined> {
+    next(...args: [] | [TNext]): Promise<IteratorResult<T, TReturn>>;
+    return?(value?: TReturn | Thenable<TReturn>): Promise<IteratorResult<T, TReturn>>;
+    throw?(e?: any): Promise<IteratorResult<T, TReturn>>;
+}
+interface AsyncIterable<T> {
+    [Symbol.asyncIterator](): AsyncIterator<T>;
+}
+interface AsyncIterableIterator<T> extends AsyncIterator<T> {
+    [Symbol.asyncIterator](): AsyncIterableIterator<T>;
+}
+
+interface Generator<T = unknown, TReturn = unknown, TNext = unknown> extends Iterator<T, TReturn, TNext> {
+    [Symbol.iterator](): Generator<T, TReturn, TNext>;
+    return(value: TReturn): IteratorResult<T, TReturn>;
+    throw(e: any): IteratorResult<T, TReturn>;
+}
+interface GeneratorFunction {
+    new (...args: any[]): Generator;
+    (...args: any[]): Generator;
+    readonly length: number;
+    readonly name: string;
+    readonly prototype: Generator;
+}
+
+interface AsyncGenerator<T = unknown, TReturn = unknown, TNext = unknown> extends AsyncIterator<T, TReturn, TNext> {
+    return(value: TReturn | Thenable<TReturn>): Promise<IteratorResult<T, TReturn>>;
+    throw(e: any): Promise<IteratorResult<T, TReturn>>;
+    [Symbol.asyncIterator](): AsyncGenerator<T, TReturn, TNext>;
+}
+interface AsyncGeneratorFunction {
+    new (...args: any[]): AsyncGenerator;
+    (...args: any[]): AsyncGenerator;
+    readonly length: number;
+    readonly name: string;
+    readonly prototype: AsyncGenerator;
+}
+
+
+interface MathObject {
+    readonly E: number;
+    readonly PI: number;
+    readonly SQRT2: number;
+    readonly SQRT1_2: number;
+    readonly LN2: number;
+    readonly LN10: number;
+    readonly LOG2E: number;
+    readonly LOG10E: number;
+
+    asin(x: number): number;
+    acos(x: number): number;
+    atan(x: number): number;
+    atan2(y: number, x: number): number;
+    asinh(x: number): number;
+    acosh(x: number): number;
+    atanh(x: number): number;
+    sin(x: number): number;
+    cos(x: number): number;
+    tan(x: number): number;
+    sinh(x: number): number;
+    cosh(x: number): number;
+    tanh(x: number): number;
+    sqrt(x: number): number;
+    cbrt(x: number): number;
+    hypot(...vals: number[]): number;
+    imul(a: number, b: number): number;
+    exp(x: number): number;
+    expm1(x: number): number;
+    pow(x: number, y: number): number;
+    log(x: number): number;
+    log10(x: number): number;
+    log1p(x: number): number;
+    log2(x: number): number;
+    ceil(x: number): number;
+    floor(x: number): number;
+    round(x: number): number;
+    fround(x: number): number;
+    trunc(x: number): number;
+    abs(x: number): number;
+    max(...vals: number[]): number;
+    min(...vals: number[]): number;
+    sign(x: number): number;
+    random(): number;
+    clz32(x: number): number;
+}
+
+interface Array<T> extends IterableIterator<T> {
+    [i: number]: T;
+
+    length: number;
+
+    toString(): string;
+    // toLocaleString(): string;
+    join(separator?: string): string;
+    fill(val: T, start?: number, end?: number): T[];
+    pop(): T | undefined;
+    push(...items: T[]): number;
+    concat(...items: (T | T[])[]): T[];
+    concat(...items: (T | T[])[]): T[];
+    join(separator?: string): string;
+    reverse(): T[];
+    shift(): T | undefined;
+    slice(start?: number, end?: number): T[];
+    sort(compareFn?: (a: T, b: T) => number): this;
+    splice(start: number, deleteCount?: number | undefined, ...items: T[]): T[];
+    unshift(...items: T[]): number;
+    indexOf(searchElement: T, fromIndex?: number): number;
+    lastIndexOf(searchElement: T, fromIndex?: number): number;
+    every(predicate: (value: T, index: number, array: T[]) => unknown, thisArg?: any): boolean;
+    some(predicate: (value: T, index: number, array: T[]) => unknown, thisArg?: any): boolean;
+    forEach(callbackfn: (value: T, index: number, array: T[]) => void, thisArg?: any): void;
+    includes(el: any, start?: number): boolean;
+
+    map<U>(callbackfn: (value: T, index: number, array: T[]) => U, thisArg?: any): U[];
+    filter(predicate: (value: T, index: number, array: T[]) => unknown, thisArg?: any): T[];
+    find(predicate: (value: T, index: number, array: T[]) => boolean, thisArg?: any): T[];
+    findIndex(predicate: (value: T, index: number, array: T[]) => boolean, thisArg?: any): number;
+    findLast(predicate: (value: T, index: number, array: T[]) => boolean, thisArg?: any): T[];
+    findLastIndex(predicate: (value: T, index: number, array: T[]) => boolean, thisArg?: any): number;
+
+    flat<D extends number = 1>(depth?: D): FlatArray<T, D>;
+    flatMap(func: (val: T, i: number, arr: T[]) => T | T[], thisAarg?: any): FlatArray<T[], 1>;
+    sort(func?: (a: T, b: T) => number): this;
+
+    reduce(callbackfn: (previousValue: T, currentValue: T, currentIndex: number, array: T[]) => T): T;
+    reduce(callbackfn: (previousValue: T, currentValue: T, currentIndex: number, array: T[]) => T, initialValue: T): T;
+    reduce<U>(callbackfn: (previousValue: U, currentValue: T, currentIndex: number, array: T[]) => U, initialValue: U): U;
+    reduceRight(callbackfn: (previousValue: T, currentValue: T, currentIndex: number, array: T[]) => T): T;
+    reduceRight(callbackfn: (previousValue: T, currentValue: T, currentIndex: number, array: T[]) => T, initialValue: T): T;
+    reduceRight<U>(callbackfn: (previousValue: U, currentValue: T, currentIndex: number, array: T[]) => U, initialValue: U): U;
+
+    entries(): IterableIterator<[number, T]>;
+    values(): IterableIterator<T>;
+    keys(): IterableIterator<number>;
+}
+interface ArrayConstructor {
+    new <T>(arrayLength?: number): T[];
+    new <T>(...items: T[]): T[];
+    <T>(arrayLength?: number): T[];
+    <T>(...items: T[]): T[];
+    isArray(arg: any): arg is any[];
+    prototype: Array<any>;
+}
+
+interface Boolean {
+    valueOf(): boolean;
+}
+interface BooleanConstructor {
+    (val: any): boolean;
+    new (val: any): Boolean;
+    prototype: Boolean;
+}
+
+interface Error {
+    name: string;
+    message: string;
+    stack: string[];
+    toString(): string;
+}
+interface ErrorConstructor {
+    (msg?: any): Error;
+    new (msg?: any): Error;
+    prototype: Error;
+}
+
+interface TypeErrorConstructor extends ErrorConstructor {
+    (msg?: any): TypeError;
+    new (msg?: any): TypeError;
+    prototype: Error;
+}
+interface TypeError extends Error {
+    name: 'TypeError';
+}
+
+interface RangeErrorConstructor extends ErrorConstructor {
+    (msg?: any): RangeError;
+    new (msg?: any): RangeError;
+    prototype: Error;
+}
+interface RangeError extends Error {
+    name: 'RangeError';
+}
+
+interface SyntaxErrorConstructor extends ErrorConstructor {
+    (msg?: any): RangeError;
+    new (msg?: any): RangeError;
+    prototype: Error;
+}
+interface SyntaxError extends Error {
+    name: 'SyntaxError';
+}
+
+interface Function {
+    apply(this: Function, thisArg: any, argArray?: any): any;
+    call(this: Function, thisArg: any, ...argArray: any[]): any;
+    bind(this: Function, thisArg: any, ...argArray: any[]): Function;
+
+    toString(): string;
+
+    prototype: any;
+    readonly length: number;
+    name: string;
+}
+interface CallableFunction extends Function {
+    (...args: any[]): any;
+    apply<ThisArg, Args extends any[], RetT>(this: (this: ThisArg, ...args: Args) => RetT, thisArg: ThisArg, argArray?: Args): RetT;
+    call<ThisArg, Args extends any[], RetT>(this: (this: ThisArg, ...args: Args) => RetT, thisArg: ThisArg, ...argArray: Args): RetT;
+    bind<ThisArg, Args extends any[], Rest extends any[], RetT>(this: (this: ThisArg, ...args: [ ...Args, ...Rest ]) => RetT, thisArg: ThisArg, ...argArray: Args): (this: void, ...args: Rest) => RetT;
+}
+interface NewableFunction extends Function {
+    new(...args: any[]): any;
+    apply<Args extends any[], RetT>(this: new (...args: Args) => RetT, thisArg: any, argArray?: Args): RetT;
+    call<Args extends any[], RetT>(this: new (...args: Args) => RetT, thisArg: any, ...argArray: Args): RetT;
+    bind<Args extends any[], RetT>(this: new (...args: Args) => RetT, thisArg: any, ...argArray: Args): new (...args: Args) => RetT;
+}
+interface FunctionConstructor extends Function {
+    (...args: string[]): (...args: any[]) => any;
+    new (...args: string[]): (...args: any[]) => any;
+    prototype: Function;
+    async<ArgsT extends any[], RetT>(
+        func: (await: <T>(val: T) => Awaited<T>) => (...args: ArgsT) => RetT
+    ): (...args: ArgsT) => Promise<RetT>;
+    asyncGenerator<ArgsT extends any[], RetT>(
+        func: (await: <T>(val: T) => Awaited<T>, _yield: <T>(val: T) => void) => (...args: ArgsT) => RetT
+    ): (...args: ArgsT) => AsyncGenerator<RetT>;
+    generator<ArgsT extends any[], T = unknown, RetT = unknown, TNext = unknown>(
+        func: (_yield: <T>(val: T) => TNext) => (...args: ArgsT) => RetT
+    ): (...args: ArgsT) => Generator<T, RetT, TNext>;
+}
+
+interface Number {
+    toString(): string;
+    valueOf(): number;
+}
+interface NumberConstructor {
+    (val: any): number;
+    new (val: any): Number;
+    prototype: Number;
+    parseInt(val: unknown): number;
+    parseFloat(val: unknown): number;
+}
+
+interface Object {
+    constructor: NewableFunction;
+    [Symbol.typeName]: string;
+
+    valueOf(): this;
+    toString(): string;
+    hasOwnProperty(key: any): boolean;
+}
+interface ObjectConstructor extends Function {
+    (arg: string): String;
+    (arg: number): Number;
+    (arg: boolean): Boolean;
+    (arg?: undefined | null): {};
+    <T extends object>(arg: T): T;
+
+    new (arg: string): String;
+    new (arg: number): Number;
+    new (arg: boolean): Boolean;
+    new (arg?: undefined | null): {};
+    new <T extends object>(arg: T): T;
+
+    prototype: Object;
+
+    assign<T extends object>(target: T, ...src: object[]): T;
+    create<T extends object>(proto: T, props?: { [key: string]: PropertyDescriptor<any, T> }): T;
+
+    keys<T extends object>(obj: T, onlyString?: true): (keyof T)[];
+    keys<T extends object>(obj: T, onlyString: false): any[];
+    entries<T extends object>(obj: T, onlyString?: true): [keyof T, T[keyof T]][];
+    entries<T extends object>(obj: T, onlyString: false): [any, any][];
+    values<T extends object>(obj: T, onlyString?: true): (T[keyof T])[];
+    values<T extends object>(obj: T, onlyString: false): any[];
+
+    fromEntries(entries: Iterable<[any, any]>): object;
+
+    defineProperty<T, ThisT extends object>(obj: ThisT, key: any, desc: PropertyDescriptor<T, ThisT>): ThisT;
+    defineProperties<ThisT extends object>(obj: ThisT, desc: { [key: string]: PropertyDescriptor<any, ThisT> }): ThisT;
+
+    getOwnPropertyNames<T extends object>(obj: T): (keyof T)[];
+    getOwnPropertySymbols<T extends object>(obj: T): (keyof T)[];
+    hasOwn<T extends object, KeyT>(obj: T, key: KeyT): boolean;
+
+    getOwnPropertyDescriptor<T extends object, KeyT extends keyof T>(obj: T, key: KeyT): PropertyDescriptor<T[KeyT], T>;
+    getOwnPropertyDescriptors<T extends object>(obj: T): { [x in keyof T]: PropertyDescriptor<T[x], T> };
+
+    getPrototypeOf(obj: any): object | null;
+    setPrototypeOf<T>(obj: T, proto: object | null): T;
+
+    preventExtensions<T extends object>(obj: T): T;
+    seal<T extends object>(obj: T): T;
+    freeze<T extends object>(obj: T): T;
+
+    isExtensible(obj: object): boolean;
+    isSealed(obj: object): boolean;
+    isFrozen(obj: object): boolean;
+}
+
+interface String {
+    [i: number]: string;
+
+    toString(): string;
+    valueOf(): string;
+
+    charAt(pos: number): string;
+    charCodeAt(pos: number): number;
+    substring(start?: number, end?: number): string;
+    slice(start?: number, end?: number): string;
+    substr(start?: number, length?: number): string;
+
+    startsWith(str: string, pos?: number): string;
+    endsWith(str: string, pos?: number): string;
+
+    replace(pattern: string | Replacer, val: string | ReplaceFunc): string;
+    replaceAll(pattern: string | Replacer, val: string | ReplaceFunc): string;
+
+    match(pattern: string | Matcher): RegExpResult | string[] | null;
+    matchAll(pattern: string | Matcher): IterableIterator<RegExpResult>;
+
+    split(pattern: string | Splitter, limit?: number, sensible?: boolean): string;
+
+    concat(...others: string[]): string;
+    indexOf(term: string | Searcher, start?: number): number;
+    lastIndexOf(term: string | Searcher, start?: number): number;
+
+    toLowerCase(): string;
+    toUpperCase(): string;
+
+    trim(): string;
+
+    includes(term: string, start?: number): boolean;
+
+    length: number;
+}
+interface StringConstructor {
+    (val: any): string;
+    new (val: any): String;
+
+    fromCharCode(val: number): string;
+
+    prototype: String;
+}
+
+interface Symbol {
+    valueOf(): symbol;
+}
+interface SymbolConstructor {
+    (val?: any): symbol;
+    new(...args: any[]): never;
+    prototype: Symbol;
+    for(key: string): symbol;
+    keyFor(sym: symbol): string;
+
+    readonly typeName: unique symbol;
+    readonly match: unique symbol;
+    readonly matchAll: unique symbol;
+    readonly split: unique symbol;
+    readonly replace: unique symbol;
+    readonly search: unique symbol;
+    readonly iterator: unique symbol;
+    readonly asyncIterator: unique symbol;
+}
+
+interface Promise<T> extends Thenable<T> {
+    catch(func: PromiseRejectFunc): Promise<T>;
+    finally(func: () => void): Promise<T>;
+}
+interface PromiseConstructor {
+    prototype: Promise<any>;
+
+    new <T>(func: PromiseFunc<T>): Promise<Awaited<T>>;
+    resolve<T>(val: T): Promise<Awaited<T>>;
+    reject(val: any): Promise<never>;
+
+    isAwaitable(val: unknown): val is Thenable<any>;
+    any<T>(promises: T[]): Promise<Awaited<T>>;
+    race<T>(promises: (Promise<T>|T)[]): Promise<T>;
+    all<T extends any[]>(promises: T): Promise<{ [Key in keyof T]: Awaited<T[Key]> }>;
+    allSettled<T extends any[]>(...promises: T): Promise<[...{ [P in keyof T]: PromiseResult<Awaited<T[P]>>}]>;
+}
+
+declare var String: StringConstructor;
+//@ts-ignore
+declare const arguments: IArguments;
+declare var NaN: number;
+declare var Infinity: number;
+
+declare var setTimeout: <T extends any[]>(handle: (...args: [ ...T, ...any[] ]) => void, delay?: number, ...args: T) => number;
+declare var setInterval: <T extends any[]>(handle: (...args: [ ...T, ...any[] ]) => void, delay?: number, ...args: T) => number;
+
+declare var clearTimeout: (id: number) => void;
+declare var clearInterval: (id: number) => void;
+
+declare var parseInt: typeof Number.parseInt;
+declare var parseFloat: typeof Number.parseFloat;
+
+declare function log(...vals: any[]): void;
+
+declare var Array: ArrayConstructor;
+declare var Boolean: BooleanConstructor;
+declare var Promise: PromiseConstructor;
+declare var Function: FunctionConstructor;
+declare var Number: NumberConstructor;
+declare var Object: ObjectConstructor;
+declare var Symbol: SymbolConstructor;
+declare var Promise: PromiseConstructor;
+declare var Math: MathObject;
+
+declare var Error: ErrorConstructor;
+declare var RangeError: RangeErrorConstructor;
+declare var TypeError: TypeErrorConstructor;
+declare var SyntaxError: SyntaxErrorConstructor;
+
+declare class Map<KeyT, ValueT> {
+    public [Symbol.iterator](): IterableIterator<[KeyT, ValueT]>;
+
+    public clear(): void;
+    public delete(key: KeyT): boolean;
+
+    public entries(): IterableIterator<[KeyT, ValueT]>;
+    public keys(): IterableIterator<KeyT>;
+    public values(): IterableIterator<ValueT>;
+
+    public get(key: KeyT): ValueT;
+    public set(key: KeyT, val: ValueT): this;
+    public has(key: KeyT): boolean;
+
+    public get size(): number;
+
+    public forEach(func: (key: KeyT, val: ValueT, map: Map<KeyT, ValueT>) => void, thisArg?: any): void;
+
+    public constructor();
+}
+declare class Set<T> {
+    public [Symbol.iterator](): IterableIterator<T>;
+
+    public entries(): IterableIterator<[T, T]>;
+    public keys(): IterableIterator<T>;
+    public values(): IterableIterator<T>;
+
+    public clear(): void;
+
+    public add(val: T): this;
+    public delete(val: T): boolean;
+    public has(key: T): boolean;
+
+    public get size(): number;
+
+    public forEach(func: (key: T, set: Set<T>) => void, thisArg?: any): void;
+
+    public constructor();
+}
+
+declare class RegExp implements Matcher, Splitter, Replacer, Searcher {
+    static escape(raw: any, flags?: string): RegExp;
+
+    prototype: RegExp;
+
+    exec(val: string): RegExpResult | null;
+    test(val: string): boolean;
+    toString(): string;
+
+    [Symbol.match](target: string): RegExpResult | string[] | null;
+    [Symbol.matchAll](target: string): IterableIterator<RegExpResult>;
+    [Symbol.split](target: string, limit?: number, sensible?: boolean): string[];
+    [Symbol.replace](target: string, replacement: string | ReplaceFunc): string;
+    [Symbol.search](target: string, reverse?: boolean, start?: number): number;
+
+    readonly dotAll: boolean;
+    readonly global: boolean;
+    readonly hasIndices: boolean;
+    readonly ignoreCase: boolean;
+    readonly multiline: boolean;
+    readonly sticky: boolean;
+    readonly unicode: boolean;
+
+    readonly source: string;
+    readonly flags: string;
+
+    lastIndex: number;
+
+    constructor(pattern?: string, flags?: string);
+    constructor(pattern?: RegExp, flags?: string);
+}

lib/map.ts

@@ -1,44 +1,93 @@
-declare class Map<KeyT, ValueT> {
-    public [Symbol.iterator](): IterableIterator<[KeyT, ValueT]>;
+define("map", () => {
+    const syms = { values: internals.symbol('Map.values') } as { readonly values: unique symbol };
+    const Object = env.global.Object;
 
-    public clear(): void;
-    public delete(key: KeyT): boolean;
+    class Map<KeyT, ValueT> {
+        [syms.values]: any = {};
 
-    public entries(): IterableIterator<[KeyT, ValueT]>;
-    public keys(): IterableIterator<KeyT>;
-    public values(): IterableIterator<ValueT>;
+        public [env.global.Symbol.iterator](): IterableIterator<[KeyT, ValueT]> {
+            return this.entries();
+        }
 
-    public get(key: KeyT): ValueT;
-    public set(key: KeyT, val: ValueT): this;
-    public has(key: KeyT): boolean;
+        public clear() {
+            this[syms.values] = {};
+        }
+        public delete(key: KeyT) {
+            if ((key as any) in this[syms.values]) {
+                delete this[syms.values];
+                return true;
+            }
+            else return false;
+        }
 
-    public get size(): number;
+        public entries(): IterableIterator<[KeyT, ValueT]> {
+            const keys = internals.ownPropKeys(this[syms.values]);
+            let i = 0;
 
-    public forEach(func: (key: KeyT, val: ValueT, map: Map<KeyT, ValueT>) => void, thisArg?: any): void;
+            return {
+                next: () => {
+                    if (i >= keys.length) return { done: true };
+                    else return { done: false, value: [ keys[i], this[syms.values][keys[i++]] ] }
+                },
+                [env.global.Symbol.iterator]() { return this; }
+            }
+        }
+        public keys(): IterableIterator<KeyT> {
+            const keys = internals.ownPropKeys(this[syms.values]);
+            let i = 0;
 
-    public constructor();
-}
+            return {
+                next: () => {
+                    if (i >= keys.length) return { done: true };
+                    else return { done: false, value: keys[i] }
+                },
+                [env.global.Symbol.iterator]() { return this; }
+            }
+        }
+        public values(): IterableIterator<ValueT> {
+            const keys = internals.ownPropKeys(this[syms.values]);
+            let i = 0;
 
-Map.prototype[Symbol.iterator] = function() {
-    return this.entries();
-};
+            return {
+                next: () => {
+                    if (i >= keys.length) return { done: true };
+                    else return { done: false, value: this[syms.values][keys[i++]] }
+                },
+                [env.global.Symbol.iterator]() { return this; }
+            }
+        }
 
-var entries = Map.prototype.entries;
-var keys = Map.prototype.keys;
-var values = Map.prototype.values;
+        public get(key: KeyT) {
+            return this[syms.values][key];
+        }
+        public set(key: KeyT, val: ValueT) {
+            this[syms.values][key] = val;
+            return this;
+        }
+        public has(key: KeyT) {
+            return (key as any) in this[syms.values][key];
+        }
 
-Map.prototype.entries = function() {
-    var it = entries.call(this);
-    it[Symbol.iterator] = () => it;
-    return it;
-};
-Map.prototype.keys = function() {
-    var it = keys.call(this);
-    it[Symbol.iterator] = () => it;
-    return it;
-};
-Map.prototype.values = function() {
-    var it = values.call(this);
-    it[Symbol.iterator] = () => it;
-    return it;
-};
+        public get size() {
+            return internals.ownPropKeys(this[syms.values]).length;
+        }
+
+        public forEach(func: (key: KeyT, val: ValueT, map: Map<KeyT, ValueT>) => void, thisArg?: any) {
+            const keys = internals.ownPropKeys(this[syms.values]);
+
+            for (let i = 0; i < keys.length; i++) {
+                func(keys[i], this[syms.values][keys[i]], this);
+            }
+        }
+
+        public constructor(iterable: Iterable<[KeyT, ValueT]>) {
+            const it = iterable[env.global.Symbol.iterator]();
+
+            for (let el = it.next(); !el.done; el = it.next()) {
+                this[syms.values][el.value[0]] = el.value[1];
+            }
+        }
+    }
+
+    env.global.Map = Map;
+});

lib/modules.ts

@@ -0,0 +1,13 @@
+var { define, run } = (() => {
+    const modules: Record<string, Function> = {};
+
+    function define(name: string, func: Function) {
+        modules[name] = func;
+    }
+    function run(name: string) {
+        if (typeof modules[name] === 'function') return modules[name]();
+        else throw "The module '" + name + "' doesn't exist.";
+    }
+
+    return { define, run };
+})();

lib/promise.ts

@@ -1,43 +1,203 @@
-type PromiseFulfillFunc<T> = (val: T) => void;
-type PromiseThenFunc<T, NextT> = (val: T) => NextT;
-type PromiseRejectFunc = (err: unknown) => void;
-type PromiseFunc<T> = (resolve: PromiseFulfillFunc<T>, reject: PromiseRejectFunc) => void;
+define("promise", () => {
+    const syms = {
+        callbacks: internals.symbol('Promise.callbacks'),
+        state: internals.symbol('Promise.state'),
+        value: internals.symbol('Promise.value'),
+        handled: internals.symbol('Promise.handled'),
+    } as {
+        readonly callbacks: unique symbol,
+        readonly state: unique symbol,
+        readonly value: unique symbol,
+        readonly handled: unique symbol,
+    }
 
-type PromiseResult<T> ={ type: 'fulfilled'; value: T; } | { type: 'rejected'; reason: any; }
+    type Callback<T> = [ PromiseFulfillFunc<T>, PromiseRejectFunc ];
+    enum State {
+        Pending,
+        Fulfilled,
+        Rejected,
+    }
 
-interface Thenable<T> {
-    then<NextT>(this: Promise<T>, onFulfilled: PromiseThenFunc<T, NextT>, onRejected?: PromiseRejectFunc): Promise<Awaited<NextT>>;
-    then(this: Promise<T>, onFulfilled: undefined, onRejected?: PromiseRejectFunc): Promise<T>;
-}
+    function isAwaitable(val: unknown): val is Thenable<any> {
+        return (
+            typeof val === 'object' &&
+            val !== null &&
+            'then' in val &&
+            typeof val.then === 'function'
+        );
+    }
+    function resolve(promise: Promise<any>, v: any, state: State) {
+        if (promise[syms.state] === State.Pending) {
+            if (typeof v === 'object' && v !== null && 'then' in v && typeof v.then === 'function') {
+                v.then(
+                    (res: any) => resolve(promise, res, state),
+                    (res: any) => resolve(promise, res, State.Rejected)
+                );
+                return;
+            }
+            promise[syms.value] = v;
+            promise[syms.state] = state;
 
-// wippidy-wine, this code is now mine :D
-type Awaited<T> =
-    T extends null | undefined ? T : // special case for `null | undefined` when not in `--strictNullChecks` mode
-        T extends object & { then(onfulfilled: infer F, ...args: infer _): any } ? // `await` only unwraps object types with a callable `then`. Non-object types are not unwrapped
-            F extends ((value: infer V, ...args: infer _) => any) ? // if the argument to `then` is callable, extracts the first argument
-                Awaited<V> : // recursively unwrap the value
-                never : // the argument to `then` was not callable
-        T;
+            for (let i = 0; i < promise[syms.callbacks]!.length; i++) {
+                promise[syms.handled] = true;
+                promise[syms.callbacks]![i][state - 1](v);
+            }
 
-interface PromiseConstructor {
-    prototype: Promise<any>;
+            promise[syms.callbacks] = undefined;
 
-    new <T>(func: PromiseFunc<T>): Promise<Awaited<T>>;
-    resolve<T>(val: T): Promise<Awaited<T>>;
-    reject(val: any): Promise<never>;
+            internals.pushMessage(true, internals.setEnv(() => {
+                if (!promise[syms.handled] && state === State.Rejected) {
+                    log('Uncaught (in promise) ' + promise[syms.value]);
+                }
+            }, env), undefined, []);
+        }
+    }
 
-    any<T>(promises: (Promise<T>|T)[]): Promise<T>;
-    race<T>(promises: (Promise<T>|T)[]): Promise<T>;
-    all<T extends any[]>(promises: T): Promise<{ [Key in keyof T]: Awaited<T[Key]> }>;
-    allSettled<T extends any[]>(...promises: T): Promise<[...{ [P in keyof T]: PromiseResult<Awaited<T[P]>>}]>;
-}
+    class Promise<T> {
+        public static isAwaitable(val: unknown): val is Thenable<any> {
+            return isAwaitable(val);
+        }
 
-interface Promise<T> extends Thenable<T> {
-    constructor: PromiseConstructor;
-    catch(func: PromiseRejectFunc): Promise<T>;
-    finally(func: () => void): Promise<T>;
-}
+        public static resolve<T>(val: T): Promise<Awaited<T>> {
+            return new Promise(res => res(val as any));
+        }
+        public static reject<T>(val: T): Promise<Awaited<T>> {
+            return new Promise((_, rej) => rej(val as any));
+        }
 
-declare var Promise: PromiseConstructor;
+        public static race<T>(vals: T[]): Promise<Awaited<T>> {
+            if (typeof vals.length !== 'number') throw new TypeError('vals must be an array. Note that Promise.race is not variadic.');
+            return new Promise((res, rej) => {
+                for (let i = 0; i < vals.length; i++) {
+                    const val = vals[i];
+                    if (this.isAwaitable(val)) val.then(res, rej);
+                    else res(val as any);
+                }
+            });
+        }
+        public static any<T>(vals: T[]): Promise<Awaited<T>> {
+            if (typeof vals.length !== 'number') throw new TypeError('vals must be an array. Note that Promise.any is not variadic.');
+            return new Promise((res, rej) => {
+                let n = 0;
 
-(Promise.prototype as any)[Symbol.typeName] = 'Promise';
+                for (let i = 0; i < vals.length; i++) {
+                    const val = vals[i];
+                    if (this.isAwaitable(val)) val.then(res, (err) => {
+                        n++;
+                        if (n === vals.length) throw Error('No promise resolved.');
+                    });
+                    else res(val as any);
+                }
+
+                if (vals.length === 0) throw Error('No promise resolved.');
+            });
+        }
+        public static all(vals: any[]): Promise<any[]> {
+            if (typeof vals.length !== 'number') throw new TypeError('vals must be an array. Note that Promise.all is not variadic.');
+            return new Promise((res, rej) => {
+                const result: any[] = [];
+                let n = 0;
+
+                for (let i = 0; i < vals.length; i++) {
+                    const val = vals[i];
+                    if (this.isAwaitable(val)) val.then(
+                        val => {
+                            n++;
+                            result[i] = val;
+                            if (n === vals.length) res(result);
+                        },
+                        rej
+                    );
+                    else {
+                        n++;
+                        result[i] = val;
+                    }
+                }
+
+                if (vals.length === n) res(result);
+            });
+        }
+        public static allSettled(vals: any[]): Promise<any[]> {
+            if (typeof vals.length !== 'number') throw new TypeError('vals must be an array. Note that Promise.allSettled is not variadic.');
+            return new Promise((res, rej) => {
+                const result: any[] = [];
+                let n = 0;
+
+                for (let i = 0; i < vals.length; i++) {
+                    const value = vals[i];
+                    if (this.isAwaitable(value)) value.then(
+                        value => {
+                            n++;
+                            result[i] = { status: 'fulfilled', value };
+                            if (n === vals.length) res(result);
+                        },
+                        reason => {
+                            n++;
+                            result[i] = { status: 'rejected', reason };
+                            if (n === vals.length) res(result);
+                        },
+                    );
+                    else {
+                        n++;
+                        result[i] = { status: 'fulfilled', value };
+                    }
+                }
+
+                if (vals.length === n) res(result);
+            });
+        }
+
+        [syms.callbacks]?: Callback<T>[] = [];
+        [syms.handled] = false;
+        [syms.state] = State.Pending;
+        [syms.value]?: T | unknown;
+
+        public then(onFulfil?: PromiseFulfillFunc<T>, onReject?: PromiseRejectFunc) {
+            return new Promise((resolve, reject) => {
+                onFulfil ??= v => v;
+                onReject ??= v => v;
+
+                const callback = (func: (val: any) => any) => (v: any) => {
+                    try { resolve(func(v)); }
+                    catch (e) { reject(e); }
+                }
+                switch (this[syms.state]) {
+                    case State.Pending:
+                        this[syms.callbacks]![this[syms.callbacks]!.length] = [callback(onFulfil), callback(onReject)];
+                        break;
+                    case State.Fulfilled:
+                        this[syms.handled] = true;
+                        callback(onFulfil)(this[syms.value]);
+                        break;
+                    case State.Rejected:
+                        this[syms.handled] = true;
+                        callback(onReject)(this[syms.value]);
+                        break;
+                }
+            })
+        }
+        public catch(func: PromiseRejectFunc) {
+            return this.then(undefined, func);
+        }
+        public finally(func: () => void) {
+            return this.then(
+                v => {
+                    func();
+                    return v;
+                },
+                v => {
+                    func();
+                    throw v;
+                }
+            );
+        }
+
+        public constructor(func: PromiseFunc<T>) {
+            internals.pushMessage(true, func, undefined, [
+                ((v) => resolve(this, v, State.Fulfilled)) as PromiseFulfillFunc<T>,
+                ((err) => resolve(this, err, State.Rejected)) as PromiseRejectFunc
+            ]);
+        }
+    }
+    env.global.Promise = Promise as any;
+});

lib/regex.ts

@@ -1,211 +1,143 @@
-interface RegExpResultIndices extends Array<[number, number]> {
-    groups?: { [name: string]: [number, number]; };
-}
-interface RegExpResult extends Array<string> {
-    groups?: { [name: string]: string; };
-    index: number;
-    input: string;
-    indices?: RegExpResultIndices;
-    escape(raw: string, flags: string): RegExp;
-}
-interface SymbolConstructor {
-    readonly match: unique symbol;
-    readonly matchAll: unique symbol;
-    readonly split: unique symbol;
-    readonly replace: unique symbol;
-    readonly search: unique symbol;
-}
+define("regex", () => {
+    // var RegExp = env.global.RegExp = env.internals.RegExp;
 
-type ReplaceFunc = (match: string, ...args: any[]) => string;
-
-interface Matcher {
-    [Symbol.match](target: string): RegExpResult | string[] | null;
-    [Symbol.matchAll](target: string): IterableIterator<RegExpResult>;
-}
-interface Splitter {
-    [Symbol.split](target: string, limit?: number, sensible?: boolean): string[];
-}
-interface Replacer {
-    [Symbol.replace](target: string, replacement: string): string;
-}
-interface Searcher {
-    [Symbol.search](target: string, reverse?: boolean, start?: number): number;
-}
-
-declare class RegExp implements Matcher, Splitter, Replacer, Searcher {
-    static escape(raw: any, flags?: string): RegExp;
-
-    prototype: RegExp;
-
-    exec(val: string): RegExpResult | null;
-    test(val: string): boolean;
-    toString(): string;
-
-    [Symbol.match](target: string): RegExpResult | string[] | null;
-    [Symbol.matchAll](target: string): IterableIterator<RegExpResult>;
-    [Symbol.split](target: string, limit?: number, sensible?: boolean): string[];
-    [Symbol.replace](target: string, replacement: string | ReplaceFunc): string;
-    [Symbol.search](target: string, reverse?: boolean, start?: number): number;
-
-    readonly dotAll: boolean;
-    readonly global: boolean;
-    readonly hasIndices: boolean;
-    readonly ignoreCase: boolean;
-    readonly multiline: boolean;
-    readonly sticky: boolean;
-    readonly unicode: boolean;
-
-    readonly source: string;
-    readonly flags: string;
-
-    lastIndex: number;
-
-    constructor(pattern?: string, flags?: string);
-    constructor(pattern?: RegExp, flags?: string);
-}
-
-(Symbol as any).replace = Symbol('Symbol.replace');
-(Symbol as any).match = Symbol('Symbol.match');
-(Symbol as any).matchAll = Symbol('Symbol.matchAll');
-(Symbol as any).split = Symbol('Symbol.split');
-(Symbol as any).search = Symbol('Symbol.search');
-
-setProps(RegExp.prototype, {
-    [Symbol.typeName]: 'RegExp',
-
-    test(val) {
-        return !!this.exec(val);
-    },
-    toString() {
-        return '/' + this.source + '/' + this.flags;
-    },
-
-    [Symbol.match](target) {
-        if (this.global) {
-            const res: string[] = [];
-            let val;
-            while (val = this.exec(target)) {
-                res.push(val[0]);
-            }
-            this.lastIndex = 0;
-            return res;
-        }
-        else {
-            const res = this.exec(target);
-            if (!this.sticky) this.lastIndex = 0;
-            return res;
-        }
-    },
-    [Symbol.matchAll](target) {
-        let pattern: RegExp | undefined = new this.constructor(this, this.flags + "g") as RegExp;
-
-        return {
-            next: (): IteratorResult<RegExpResult, undefined> => {
-                const val = pattern?.exec(target);
-
-                if (val === null || val === undefined) {
-                    pattern = undefined;
-                    return { done: true };
-                }
-                else return { value: val };
-            },
-            [Symbol.iterator]() { return this; }
-        }
-    },
-    [Symbol.split](target, limit, sensible) {
-        const pattern = new this.constructor(this, this.flags + "g") as RegExp;
-        let match: RegExpResult | null;
-        let lastEnd = 0;
-        const res: string[] = [];
-
-        while ((match = pattern.exec(target)) !== null) {
-            let added: string[] = [];
-
-            if (match.index >= target.length) break;
-
-            if (match[0].length === 0) {
-                added = [ target.substring(lastEnd, pattern.lastIndex), ];
-                if (pattern.lastIndex < target.length) added.push(...match.slice(1));
-            }
-            else if (match.index - lastEnd > 0) {
-                added = [ target.substring(lastEnd, match.index), ...match.slice(1) ];
-            }
-            else {
-                for (let i = 1; i < match.length; i++) {
-                    res[res.length - match.length + i] = match[i];
-                }
-            }
-
-            if (sensible) {
-                if (limit !== undefined && res.length + added.length >= limit) break;
-                else res.push(...added);
-            }
-            else {
-                for (let i = 0; i < added.length; i++) {
-                    if (limit !== undefined && res.length >= limit) return res;
-                    else res.push(added[i]);
-                }
-            }
-
-            lastEnd = pattern.lastIndex;
-        }
-
-        if (lastEnd < target.length) {
-            res.push(target.substring(lastEnd));
-        }
-
-        return res;
-    },
-    [Symbol.replace](target, replacement) {
-        const pattern = new this.constructor(this, this.flags + "d") as RegExp;
-        let match: RegExpResult | null;
-        let lastEnd = 0;
-        const res: string[] = [];
-
-        // log(pattern.toString());
-
-        while ((match = pattern.exec(target)) !== null) {
-            const indices = match.indices![0];
-            res.push(target.substring(lastEnd, indices[0]));
-            if (replacement instanceof Function) {
-                res.push(replacement(target.substring(indices[0], indices[1]), ...match.slice(1), indices[0], target));
-            }
-            else {
-                res.push(replacement);
-            }
-            lastEnd = indices[1];
-            if (!pattern.global) break;
-        }
-
-        if (lastEnd < target.length) {
-            res.push(target.substring(lastEnd));
-        }
-
-        return res.join('');
-    },
-    [Symbol.search](target, reverse, start) {
-        const pattern: RegExp | undefined = new this.constructor(this, this.flags + "g") as RegExp;
-
-        
-        if (!reverse) {
-            pattern.lastIndex = (start as any) | 0;
-            const res = pattern.exec(target);
-            if (res) return res.index;
-            else return -1;
-        }
-        else {
-            start ??= target.length;
-            start |= 0;
-            let res: RegExpResult | null = null;
-
-            while (true) {
-                const tmp = pattern.exec(target);
-                if (tmp === null || tmp.index > start) break;
-                res = tmp;
-            }
-
-            if (res && res.index <= start) return res.index;
-            else return -1;
-        }
-    },
-});
+    // setProps(RegExp.prototype as RegExp, env, {
+    //     [Symbol.typeName]: 'RegExp',
+    
+    //     test(val) {
+    //         return !!this.exec(val);
+    //     },
+    //     toString() {
+    //         return '/' + this.source + '/' + this.flags;
+    //     },
+    
+    //     [Symbol.match](target) {
+    //         if (this.global) {
+    //             const res: string[] = [];
+    //             let val;
+    //             while (val = this.exec(target)) {
+    //                 res.push(val[0]);
+    //             }
+    //             this.lastIndex = 0;
+    //             return res;
+    //         }
+    //         else {
+    //             const res = this.exec(target);
+    //             if (!this.sticky) this.lastIndex = 0;
+    //             return res;
+    //         }
+    //     },
+    //     [Symbol.matchAll](target) {
+    //         let pattern: RegExp | undefined = new this.constructor(this, this.flags + "g") as RegExp;
+    
+    //         return {
+    //             next: (): IteratorResult<RegExpResult, undefined> => {
+    //                 const val = pattern?.exec(target);
+    
+    //                 if (val === null || val === undefined) {
+    //                     pattern = undefined;
+    //                     return { done: true };
+    //                 }
+    //                 else return { value: val };
+    //             },
+    //             [Symbol.iterator]() { return this; }
+    //         }
+    //     },
+    //     [Symbol.split](target, limit, sensible) {
+    //         const pattern = new this.constructor(this, this.flags + "g") as RegExp;
+    //         let match: RegExpResult | null;
+    //         let lastEnd = 0;
+    //         const res: string[] = [];
+    
+    //         while ((match = pattern.exec(target)) !== null) {
+    //             let added: string[] = [];
+    
+    //             if (match.index >= target.length) break;
+    
+    //             if (match[0].length === 0) {
+    //                 added = [ target.substring(lastEnd, pattern.lastIndex), ];
+    //                 if (pattern.lastIndex < target.length) added.push(...match.slice(1));
+    //             }
+    //             else if (match.index - lastEnd > 0) {
+    //                 added = [ target.substring(lastEnd, match.index), ...match.slice(1) ];
+    //             }
+    //             else {
+    //                 for (let i = 1; i < match.length; i++) {
+    //                     res[res.length - match.length + i] = match[i];
+    //                 }
+    //             }
+    
+    //             if (sensible) {
+    //                 if (limit !== undefined && res.length + added.length >= limit) break;
+    //                 else res.push(...added);
+    //             }
+    //             else {
+    //                 for (let i = 0; i < added.length; i++) {
+    //                     if (limit !== undefined && res.length >= limit) return res;
+    //                     else res.push(added[i]);
+    //                 }
+    //             }
+    
+    //             lastEnd = pattern.lastIndex;
+    //         }
+    
+    //         if (lastEnd < target.length) {
+    //             res.push(target.substring(lastEnd));
+    //         }
+    
+    //         return res;
+    //     },
+    //     [Symbol.replace](target, replacement) {
+    //         const pattern = new this.constructor(this, this.flags + "d") as RegExp;
+    //         let match: RegExpResult | null;
+    //         let lastEnd = 0;
+    //         const res: string[] = [];
+    
+    //         // log(pattern.toString());
+    
+    //         while ((match = pattern.exec(target)) !== null) {
+    //             const indices = match.indices![0];
+    //             res.push(target.substring(lastEnd, indices[0]));
+    //             if (replacement instanceof Function) {
+    //                 res.push(replacement(target.substring(indices[0], indices[1]), ...match.slice(1), indices[0], target));
+    //             }
+    //             else {
+    //                 res.push(replacement);
+    //             }
+    //             lastEnd = indices[1];
+    //             if (!pattern.global) break;
+    //         }
+    
+    //         if (lastEnd < target.length) {
+    //             res.push(target.substring(lastEnd));
+    //         }
+    
+    //         return res.join('');
+    //     },
+    //     [Symbol.search](target, reverse, start) {
+    //         const pattern: RegExp | undefined = new this.constructor(this, this.flags + "g") as RegExp;
+    
+            
+    //         if (!reverse) {
+    //             pattern.lastIndex = (start as any) | 0;
+    //             const res = pattern.exec(target);
+    //             if (res) return res.index;
+    //             else return -1;
+    //         }
+    //         else {
+    //             start ??= target.length;
+    //             start |= 0;
+    //             let res: RegExpResult | null = null;
+    
+    //             while (true) {
+    //                 const tmp = pattern.exec(target);
+    //                 if (tmp === null || tmp.index > start) break;
+    //                 res = tmp;
+    //             }
+    
+    //             if (res && res.index <= start) return res.index;
+    //             else return -1;
+    //         }
+    //     },
+    // });
+});

lib/require.ts

@@ -1,15 +0,0 @@
-type RequireFunc = (path: string) => any;
-
-interface Module {
-    exports: any;
-    name: string;
-}
-
-declare var require: RequireFunc;
-declare var exports: any;
-declare var module: Module;
-
-gt.require = function(path: string) {
-    if (typeof path !== 'string') path = path + '';
-    return internals.require(path);
-};

lib/set.ts

@@ -1,45 +1,81 @@
-declare class Set<T> {
-    public [Symbol.iterator](): IterableIterator<T>;
+define("set", () => {
+    const syms = { values: internals.symbol('Map.values') } as { readonly values: unique symbol };
+    const Object = env.global.Object;
 
-    public entries(): IterableIterator<[T, T]>;
-    public keys(): IterableIterator<T>;
-    public values(): IterableIterator<T>;
+    class Set<T> {
+        [syms.values]: any = {};
 
-    public clear(): void;
+        public [env.global.Symbol.iterator](): IterableIterator<[T, T]> {
+            return this.entries();
+        }
 
-    public add(val: T): this;
-    public delete(val: T): boolean;
-    public has(key: T): boolean;
+        public clear() {
+            this[syms.values] = {};
+        }
+        public delete(key: T) {
+            if ((key as any) in this[syms.values]) {
+                delete this[syms.values];
+                return true;
+            }
+            else return false;
+        }
 
-    public get size(): number;
+        public entries(): IterableIterator<[T, T]> {
+            const keys = internals.ownPropKeys(this[syms.values]);
+            let i = 0;
 
-    public forEach(func: (key: T, set: Set<T>) => void, thisArg?: any): void;
+            return {
+                next: () => {
+                    if (i >= keys.length) return { done: true };
+                    else return { done: false, value: [ keys[i], keys[i] ] }
+                },
+                [env.global.Symbol.iterator]() { return this; }
+            }
+        }
+        public keys(): IterableIterator<T> {
+            const keys = internals.ownPropKeys(this[syms.values]);
+            let i = 0;
 
-    public constructor();
-}
+            return {
+                next: () => {
+                    if (i >= keys.length) return { done: true };
+                    else return { done: false, value: keys[i] }
+                },
+                [env.global.Symbol.iterator]() { return this; }
+            }
+        }
+        public values(): IterableIterator<T> {
+            return this.keys();
+        }
 
-Set.prototype[Symbol.iterator] = function() {
-    return this.values();
-};
+        public add(val: T) {
+            this[syms.values][val] = undefined;
+            return this;
+        }
+        public has(key: T) {
+            return (key as any) in this[syms.values][key];
+        }
 
-(() => {
-    var entries = Set.prototype.entries;
-    var keys = Set.prototype.keys;
-    var values = Set.prototype.values;
+        public get size() {
+            return internals.ownPropKeys(this[syms.values]).length;
+        }
 
-    Set.prototype.entries = function() {
-        var it = entries.call(this);
-        it[Symbol.iterator] = () => it;
-        return it;
-    };
-    Set.prototype.keys = function() {
-        var it = keys.call(this);
-        it[Symbol.iterator] = () => it;
-        return it;
-    };
-    Set.prototype.values = function() {
-        var it = values.call(this);
-        it[Symbol.iterator] = () => it;
-        return it;
-    };
-})();
+        public forEach(func: (key: T, val: T, map: Set<T>) => void, thisArg?: any) {
+            const keys = internals.ownPropKeys(this[syms.values]);
+
+            for (let i = 0; i < keys.length; i++) {
+                func(keys[i], this[syms.values][keys[i]], this);
+            }
+        }
+
+        public constructor(iterable: Iterable<T>) {
+            const it = iterable[env.global.Symbol.iterator]();
+
+            for (let el = it.next(); !el.done; el = it.next()) {
+                this[syms.values][el.value] = undefined;
+            }
+        }
+    }
+
+    env.global.Set = Set;
+});

lib/timeout.ts

@@ -0,0 +1,38 @@
+define("timeout", () => {
+    const timeouts: Record<number, () => void> = { };
+    const intervals: Record<number, () => void> = { };
+    let timeoutI = 0, intervalI = 0;
+
+    env.global.setTimeout = (func, delay, ...args) => {
+        if (typeof func !== 'function') throw new TypeError("func must be a function.");
+        delay = (delay ?? 0) - 0;
+        const cancelFunc = internals.delay(delay, () => internals.apply(func, undefined, args));
+        timeouts[++timeoutI] = cancelFunc;
+        return timeoutI;
+    };
+    env.global.setInterval = (func, delay, ...args) => {
+        if (typeof func !== 'function') throw new TypeError("func must be a function.");
+        delay = (delay ?? 0) - 0;
+
+        const i = ++intervalI;
+        intervals[i] = internals.delay(delay, callback);
+
+        return i;
+
+        function callback() {
+            internals.apply(func, undefined, args);
+            intervals[i] = internals.delay(delay!, callback);
+        }
+    };
+    
+    env.global.clearTimeout = (id) => {
+        const func = timeouts[id];
+        if (func) func();
+        timeouts[id] = undefined!;
+    };
+    env.global.clearInterval = (id) => {
+        const func = intervals[id];
+        if (func) func();
+        intervals[id] = undefined!;
+    };
+});

lib/tsconfig.json

@@ -0,0 +1,34 @@
+{
+    "files": [
+        "lib.d.ts",
+        "modules.ts",
+        "utils.ts",
+        "values/object.ts",
+        "values/symbol.ts",
+        "values/function.ts",
+        "values/errors.ts",
+        "values/string.ts",
+        "values/number.ts",
+        "values/boolean.ts",
+        "values/array.ts",
+        "promise.ts",
+        "map.ts",
+        "set.ts",
+        "regex.ts",
+        "timeout.ts",
+        "core.ts"
+    ],
+    "compilerOptions": {
+        "outFile": "../bin/me/topchetoeu/jscript/js/core.js",
+        // "declarationDir": "",
+        // "declarationDir": "bin/me/topchetoeu/jscript/dts",
+        "target": "ES5",
+        "lib": [],
+        "module": "None",
+        "stripInternal": true,
+        "downlevelIteration": true,
+        "esModuleInterop": true,
+        "forceConsistentCasingInFileNames": true,
+        "strict": true,
+    }
+}

lib/utils.ts

@@ -0,0 +1,38 @@
+function setProps<
+    TargetT extends object,
+    DescT extends {
+        [x in Exclude<keyof TargetT, 'constructor'> ]?: TargetT[x] extends ((...args: infer ArgsT) => infer RetT) ?
+            ((this: TargetT, ...args: ArgsT) => RetT) :
+            TargetT[x]
+    }
+>(target: TargetT, desc: DescT) {
+    var props = internals.keys(desc, false);
+    for (var i = 0; i < props.length; i++) {
+        var key = props[i];
+        internals.defineField(
+            target, key, (desc as any)[key],
+            true, // writable
+            false, // enumerable
+            true // configurable
+        );
+    }
+}
+function setConstr(target: object, constr: Function) {
+    internals.defineField(
+        target, 'constructor', constr,
+        true, // writable
+        false, // enumerable
+        true // configurable
+    );
+}
+
+function wrapI(max: number, i: number) {
+    i |= 0;
+    if (i < 0) i = max + i;
+    return i;
+}
+function clampI(max: number, i: number) {
+    if (i < 0) i = 0;
+    if (i > max) i = max;
+    return i;
+}

lib/values/array.ts

@@ -1,369 +1,336 @@
-// god this is awful
-type FlatArray<Arr, Depth extends number> = {
-    "done": Arr,
-    "recur": Arr extends Array<infer InnerArr>
-        ? FlatArray<InnerArr, [-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20][Depth]>
-        : Arr
-}[Depth extends -1 ? "done" : "recur"];
-
-interface Array<T> {
-    [i: number]: T;
-
-    constructor: ArrayConstructor;
-    length: number;
-
-    toString(): string;
-    // toLocaleString(): string;
-    join(separator?: string): string;
-    fill(val: T, start?: number, end?: number): T[];
-    pop(): T | undefined;
-    push(...items: T[]): number;
-    concat(...items: (T | T[])[]): T[];
-    concat(...items: (T | T[])[]): T[];
-    join(separator?: string): string;
-    reverse(): T[];
-    shift(): T | undefined;
-    slice(start?: number, end?: number): T[];
-    sort(compareFn?: (a: T, b: T) => number): this;
-    splice(start: number, deleteCount?: number | undefined, ...items: T[]): T[];
-    unshift(...items: T[]): number;
-    indexOf(searchElement: T, fromIndex?: number): number;
-    lastIndexOf(searchElement: T, fromIndex?: number): number;
-    every(predicate: (value: T, index: number, array: T[]) => unknown, thisArg?: any): boolean;
-    some(predicate: (value: T, index: number, array: T[]) => unknown, thisArg?: any): boolean;
-    forEach(callbackfn: (value: T, index: number, array: T[]) => void, thisArg?: any): void;
-    includes(el: any, start?: number): boolean;
-
-    map<U>(callbackfn: (value: T, index: number, array: T[]) => U, thisArg?: any): U[];
-    filter(predicate: (value: T, index: number, array: T[]) => unknown, thisArg?: any): T[];
-    find(predicate: (value: T, index: number, array: T[]) => boolean, thisArg?: any): T[];
-    findIndex(predicate: (value: T, index: number, array: T[]) => boolean, thisArg?: any): number;
-    findLast(predicate: (value: T, index: number, array: T[]) => boolean, thisArg?: any): T[];
-    findLastIndex(predicate: (value: T, index: number, array: T[]) => boolean, thisArg?: any): number;
-
-    flat<D extends number = 1>(depth?: D): FlatArray<T, D>;
-    flatMap(func: (val: T, i: number, arr: T[]) => T | T[], thisAarg?: any): FlatArray<T[], 1>;
-    sort(func?: (a: T, b: T) => number): this;
-
-    reduce(callbackfn: (previousValue: T, currentValue: T, currentIndex: number, array: T[]) => T): T;
-    reduce(callbackfn: (previousValue: T, currentValue: T, currentIndex: number, array: T[]) => T, initialValue: T): T;
-    reduce<U>(callbackfn: (previousValue: U, currentValue: T, currentIndex: number, array: T[]) => U, initialValue: U): U;
-    reduceRight(callbackfn: (previousValue: T, currentValue: T, currentIndex: number, array: T[]) => T): T;
-    reduceRight(callbackfn: (previousValue: T, currentValue: T, currentIndex: number, array: T[]) => T, initialValue: T): T;
-    reduceRight<U>(callbackfn: (previousValue: U, currentValue: T, currentIndex: number, array: T[]) => U, initialValue: U): U;
-}
-interface ArrayConstructor {
-    new <T>(arrayLength?: number): T[];
-    new <T>(...items: T[]): T[];
-    <T>(arrayLength?: number): T[];
-    <T>(...items: T[]): T[];
-    isArray(arg: any): arg is any[];
-    prototype: Array<any>;
-}
-
-declare var Array: ArrayConstructor;
-
-gt.Array = function(len?: number) {
-    var res = [];
-
-    if (typeof len === 'number' && arguments.length === 1) {
-        if (len < 0) throw 'Invalid array length.';
-        res.length = len;
-    }
-    else {
-        for (var i = 0; i < arguments.length; i++) {
-            res[i] = arguments[i];
-        }
-    }
-
-    return res;
-} as ArrayConstructor;
-
-Array.prototype = ([] as any).__proto__ as Array<any>;
-setConstr(Array.prototype, Array);
-
-function wrapI(max: number, i: number) {
-    i |= 0;
-    if (i < 0) i = max + i;
-    return i;
-}
-function clampI(max: number, i: number) {
-    if (i < 0) i = 0;
-    if (i > max) i = max;
-    return i;
-}
-
-lgt.wrapI = wrapI;
-lgt.clampI = clampI;
-
-(Array.prototype as any)[Symbol.typeName] = "Array";
-
-setProps(Array.prototype, {
-    concat() {
-        var res = [] as any[];
-        res.push.apply(res, this);
-
-        for (var i = 0; i < arguments.length; i++) {
-            var arg = arguments[i];
-            if (arg instanceof Array) {
-                res.push.apply(res, arg);
-            }
-            else {
-                res.push(arg);
-            }
-        }
-
-        return res;
-    },
-    every(func, thisArg) {
-        if (typeof func !== 'function') throw new TypeError("Given argument not a function.");
-        func = func.bind(thisArg);
-
-        for (var i = 0; i < this.length; i++) {
-            if (!func(this[i], i, this)) return false;
-        }
-
-        return true;
-    },
-    some(func, thisArg) {
-        if (typeof func !== 'function') throw new TypeError("Given argument not a function.");
-        func = func.bind(thisArg);
-
-        for (var i = 0; i < this.length; i++) {
-            if (func(this[i], i, this)) return true;
-        }
-
-        return false;
-    },
-    fill(val, start, end) {
-        if (arguments.length < 3) end = this.length;
-        if (arguments.length < 2) start = 0;
-
-        start = clampI(this.length, wrapI(this.length + 1, start ?? 0));
-        end = clampI(this.length, wrapI(this.length + 1, end ?? this.length));
-
-        for (; start < end; start++) {
-            this[start] = val;
-        }
-
-        return this;
-    },
-    filter(func, thisArg) {
-        if (typeof func !== 'function') throw new TypeError("Given argument is not a function.");
-
+define("values/array", () => {
+    var Array = env.global.Array = function(len?: number) {
         var res = [];
-        for (var i = 0; i < this.length; i++) {
-            if (i in this && func.call(thisArg, this[i], i, this)) res.push(this[i]);
+
+        if (typeof len === 'number' && arguments.length === 1) {
+            if (len < 0) throw 'Invalid array length.';
+            res.length = len;
         }
+        else {
+            for (var i = 0; i < arguments.length; i++) {
+                res[i] = arguments[i];
+            }
+        }
+
         return res;
-    },
-    find(func, thisArg) {
-        if (typeof func !== 'function') throw new TypeError("Given argument is not a function.");
+    } as ArrayConstructor;
 
-        for (var i = 0; i < this.length; i++) {
-            if (i in this && func.call(thisArg, this[i], i, this)) return this[i];
-        }
+    env.setProto('array', Array.prototype);
+    (Array.prototype as any)[env.global.Symbol.typeName] = "Array";
+    setConstr(Array.prototype, Array);
 
-        return undefined;
-    },
-    findIndex(func, thisArg) {
-        if (typeof func !== 'function') throw new TypeError("Given argument is not a function.");
+    setProps(Array.prototype, {
+        [env.global.Symbol.iterator]: function() {
+            return this.values();
+        },
+        [env.global.Symbol.typeName]: "Array",
 
-        for (var i = 0; i < this.length; i++) {
-            if (i in this && func.call(thisArg, this[i], i, this)) return i;
-        }
+        values() {
+            var i = 0;
+    
+            return {
+                next: () => {
+                    while (i < this.length) {
+                        if (i++ in this) return { done: false, value: this[i - 1] };
+                    }
+                    return { done: true, value: undefined };
+                },
+                [env.global.Symbol.iterator]() { return this; }
+            };
+        },
+        keys() {
+            var i = 0;
+    
+            return {
+                next: () => {
+                    while (i < this.length) {
+                        if (i++ in this) return { done: false, value: i - 1 };
+                    }
+                    return { done: true, value: undefined };
+                },
+                [env.global.Symbol.iterator]() { return this; }
+            };
+        },
+        entries() {
+            var i = 0;
+    
+            return {
+                next: () => {
+                    while (i < this.length) {
+                        if (i++ in this) return { done: false, value: [i - 1, this[i - 1]] };
+                    }
+                    return { done: true, value: undefined };
+                },
+                [env.global.Symbol.iterator]() { return this; }
+            };
+        },
+        concat() {
+            var res = [] as any[];
+            res.push.apply(res, this);
 
-        return -1;
-    },
-    findLast(func, thisArg) {
-        if (typeof func !== 'function') throw new TypeError("Given argument is not a function.");
-    
-        for (var i = this.length - 1; i >= 0; i--) {
-            if (i in this && func.call(thisArg, this[i], i, this)) return this[i];
-        }
-    
-        return undefined;
-    },
-    findLastIndex(func, thisArg) {
-        if (typeof func !== 'function') throw new TypeError("Given argument is not a function.");
-    
-        for (var i = this.length - 1; i >= 0; i--) {
-            if (i in this && func.call(thisArg, this[i], i, this)) return i;
-        }
-    
-        return -1;
-    },
-    flat(depth) {
-        var res = [] as any[];
-        var buff = [];
-        res.push(...this);
-    
-        for (var i = 0; i < (depth ?? 1); i++) {
-            var anyArrays = false;
-            for (var el of res) {
-                if (el instanceof Array) {
-                    buff.push(...el);
-                    anyArrays = true;
+            for (var i = 0; i < arguments.length; i++) {
+                var arg = arguments[i];
+                if (arg instanceof Array) {
+                    res.push.apply(res, arg);
+                }
+                else {
+                    res.push(arg);
                 }
-                else buff.push(el);
             }
     
-            res = buff;
-            buff = [];
-            if (!anyArrays) break;
-        }
+            return res;
+        },
+        every(func, thisArg) {
+            if (typeof func !== 'function') throw new TypeError("Given argument not a function.");
+            func = func.bind(thisArg);
     
-        return res;
-    },
-    flatMap(func, th) {
-        return this.map(func, th).flat();
-    },
-    forEach(func, thisArg) {
-        for (var i = 0; i < this.length; i++) {
-            if (i in this) func.call(thisArg, this[i], i, this);
-        }
-    },
-    map(func, thisArg) {
-        if (typeof func !== 'function') throw new TypeError("Given argument is not a function.");
-    
-        var res = [];
-        for (var i = 0; i < this.length; i++) {
-            if (i in this) res[i] = func.call(thisArg, this[i], i, this);
-        }
-        return res;
-    },
-    pop() {
-        if (this.length === 0) return undefined;
-        var val = this[this.length - 1];
-        this.length--;
-        return val;
-    },
-    push() {
-        for (var i = 0; i < arguments.length; i++) {
-            this[this.length] = arguments[i];
-        }
-        return arguments.length;
-    },
-    shift() {
-        if (this.length === 0) return undefined;
-        var res = this[0];
-
-        for (var i = 0; i < this.length - 1; i++) {
-            this[i] = this[i + 1];
-        }
-
-        this.length--;
-
-        return res;
-    },
-    unshift() {
-        for (var i = this.length - 1; i >= 0; i--) {
-            this[i + arguments.length] = this[i];
-        }
-        for (var i = 0; i < arguments.length; i++) {
-            this[i] = arguments[i];
-        }
-
-        return arguments.length;
-    },
-    slice(start, end) {
-        start = clampI(this.length, wrapI(this.length + 1, start ?? 0));
-        end = clampI(this.length, wrapI(this.length + 1, end ?? this.length));
-
-        var res: any[] = [];
-        var n = end - start;
-        if (n <= 0) return res;
-    
-        for (var i = 0; i < n; i++) {
-            res[i] = this[start + i];
-        }
-    
-        return res;
-    },
-    toString() {
-        let res = '';
-        for (let i = 0; i < this.length; i++) {
-            if (i > 0) res += ',';
-            if (i in this && this[i] !== undefined && this[i] !== null) res += this[i];
-        }
-    
-        return res;
-    },
-    indexOf(el, start) {
-        start = start! | 0;
-        for (var i = Math.max(0, start); i < this.length; i++) {
-            if (i in this && this[i] == el) return i;
-        }
-    
-        return -1;
-    },
-    lastIndexOf(el, start) {
-        start = start! | 0;
-        for (var i = this.length; i >= start; i--) {
-            if (i in this && this[i] == el) return i;
-        }
-
-        return -1;
-    },
-    includes(el, start) {
-        return this.indexOf(el, start) >= 0;
-    },
-    join(val = ',') {
-        let res = '', first = true;
-
-        for (let i = 0; i < this.length; i++) {
-            if (!(i in this)) continue;
-            if (!first) res += val;
-            first = false;
-            res += this[i];
-        }
-        return res;
-    },
-    sort(func) {
-        func ??= (a, b) => {
-            const _a = a + '';
-            const _b = b + '';
-
-            if (_a > _b) return 1;
-            if (_a < _b) return -1;
-            return 0;
-        };
-
-        if (typeof func !== 'function') throw new TypeError('Expected func to be undefined or a function.');
-
-        internals.sort(this, func);
-        return this;
-    },
-    splice(start, deleteCount, ...items) {
-        start = clampI(this.length, wrapI(this.length, start ?? 0));
-        deleteCount = (deleteCount ?? Infinity | 0);
-        if (start + deleteCount >= this.length) deleteCount = this.length - start;
-
-        const res = this.slice(start, start + deleteCount);
-        const moveN = items.length - deleteCount;
-        const len = this.length;
-
-        if (moveN < 0) {
-            for (let i = start - moveN; i < len; i++) {
-                this[i + moveN] = this[i];
+            for (var i = 0; i < this.length; i++) {
+                if (!func(this[i], i, this)) return false;
             }
-        }
-        else if (moveN > 0) {
-            for (let i = len - 1; i >= start; i--) {
-                this[i + moveN] = this[i];
+    
+            return true;
+        },
+        some(func, thisArg) {
+            if (typeof func !== 'function') throw new TypeError("Given argument not a function.");
+            func = func.bind(thisArg);
+    
+            for (var i = 0; i < this.length; i++) {
+                if (func(this[i], i, this)) return true;
             }
+    
+            return false;
+        },
+        fill(val, start, end) {
+            if (arguments.length < 3) end = this.length;
+            if (arguments.length < 2) start = 0;
+    
+            start = clampI(this.length, wrapI(this.length + 1, start ?? 0));
+            end = clampI(this.length, wrapI(this.length + 1, end ?? this.length));
+    
+            for (; start < end; start++) {
+                this[start] = val;
+            }
+    
+            return this;
+        },
+        filter(func, thisArg) {
+            if (typeof func !== 'function') throw new TypeError("Given argument is not a function.");
+    
+            var res = [];
+            for (var i = 0; i < this.length; i++) {
+                if (i in this && func.call(thisArg, this[i], i, this)) res.push(this[i]);
+            }
+            return res;
+        },
+        find(func, thisArg) {
+            if (typeof func !== 'function') throw new TypeError("Given argument is not a function.");
+    
+            for (var i = 0; i < this.length; i++) {
+                if (i in this && func.call(thisArg, this[i], i, this)) return this[i];
+            }
+    
+            return undefined;
+        },
+        findIndex(func, thisArg) {
+            if (typeof func !== 'function') throw new TypeError("Given argument is not a function.");
+    
+            for (var i = 0; i < this.length; i++) {
+                if (i in this && func.call(thisArg, this[i], i, this)) return i;
+            }
+    
+            return -1;
+        },
+        findLast(func, thisArg) {
+            if (typeof func !== 'function') throw new TypeError("Given argument is not a function.");
+        
+            for (var i = this.length - 1; i >= 0; i--) {
+                if (i in this && func.call(thisArg, this[i], i, this)) return this[i];
+            }
+        
+            return undefined;
+        },
+        findLastIndex(func, thisArg) {
+            if (typeof func !== 'function') throw new TypeError("Given argument is not a function.");
+        
+            for (var i = this.length - 1; i >= 0; i--) {
+                if (i in this && func.call(thisArg, this[i], i, this)) return i;
+            }
+        
+            return -1;
+        },
+        flat(depth) {
+            var res = [] as any[];
+            var buff = [];
+            res.push(...this);
+        
+            for (var i = 0; i < (depth ?? 1); i++) {
+                var anyArrays = false;
+                for (var el of res) {
+                    if (el instanceof Array) {
+                        buff.push(...el);
+                        anyArrays = true;
+                    }
+                    else buff.push(el);
+                }
+        
+                res = buff;
+                buff = [];
+                if (!anyArrays) break;
+            }
+        
+            return res;
+        },
+        flatMap(func, th) {
+            return this.map(func, th).flat();
+        },
+        forEach(func, thisArg) {
+            for (var i = 0; i < this.length; i++) {
+                if (i in this) func.call(thisArg, this[i], i, this);
+            }
+        },
+        map(func, thisArg) {
+            if (typeof func !== 'function') throw new TypeError("Given argument is not a function.");
+        
+            var res = [];
+            for (var i = 0; i < this.length; i++) {
+                if (i in this) res[i] = func.call(thisArg, this[i], i, this);
+            }
+            return res;
+        },
+        pop() {
+            if (this.length === 0) return undefined;
+            var val = this[this.length - 1];
+            this.length--;
+            return val;
+        },
+        push() {
+            for (var i = 0; i < arguments.length; i++) {
+                this[this.length] = arguments[i];
+            }
+            return arguments.length;
+        },
+        shift() {
+            if (this.length === 0) return undefined;
+            var res = this[0];
+    
+            for (var i = 0; i < this.length - 1; i++) {
+                this[i] = this[i + 1];
+            }
+    
+            this.length--;
+    
+            return res;
+        },
+        unshift() {
+            for (var i = this.length - 1; i >= 0; i--) {
+                this[i + arguments.length] = this[i];
+            }
+            for (var i = 0; i < arguments.length; i++) {
+                this[i] = arguments[i];
+            }
+    
+            return arguments.length;
+        },
+        slice(start, end) {
+            start = clampI(this.length, wrapI(this.length + 1, start ?? 0));
+            end = clampI(this.length, wrapI(this.length + 1, end ?? this.length));
+    
+            var res: any[] = [];
+            var n = end - start;
+            if (n <= 0) return res;
+        
+            for (var i = 0; i < n; i++) {
+                res[i] = this[start + i];
+            }
+        
+            return res;
+        },
+        toString() {
+            let res = '';
+            for (let i = 0; i < this.length; i++) {
+                if (i > 0) res += ',';
+                if (i in this && this[i] !== undefined && this[i] !== null) res += this[i];
+            }
+        
+            return res;
+        },
+        indexOf(el, start) {
+            start = start! | 0;
+            for (var i = Math.max(0, start); i < this.length; i++) {
+                if (i in this && this[i] == el) return i;
+            }
+        
+            return -1;
+        },
+        lastIndexOf(el, start) {
+            start = start! | 0;
+            for (var i = this.length; i >= start; i--) {
+                if (i in this && this[i] == el) return i;
+            }
+    
+            return -1;
+        },
+        includes(el, start) {
+            return this.indexOf(el, start) >= 0;
+        },
+        join(val = ',') {
+            let res = '', first = true;
+    
+            for (let i = 0; i < this.length; i++) {
+                if (!(i in this)) continue;
+                if (!first) res += val;
+                first = false;
+                res += this[i];
+            }
+            return res;
+        },
+        sort(func) {
+            func ??= (a, b) => {
+                const _a = a + '';
+                const _b = b + '';
+    
+                if (_a > _b) return 1;
+                if (_a < _b) return -1;
+                return 0;
+            };
+    
+            if (typeof func !== 'function') throw new TypeError('Expected func to be undefined or a function.');
+    
+            internals.sort(this, func);
+            return this;
+        },
+        splice(start, deleteCount, ...items) {
+            start = clampI(this.length, wrapI(this.length, start ?? 0));
+            deleteCount = (deleteCount ?? Infinity | 0);
+            if (start + deleteCount >= this.length) deleteCount = this.length - start;
+    
+            const res = this.slice(start, start + deleteCount);
+            const moveN = items.length - deleteCount;
+            const len = this.length;
+    
+            if (moveN < 0) {
+                for (let i = start - moveN; i < len; i++) {
+                    this[i + moveN] = this[i];
+                }
+            }
+            else if (moveN > 0) {
+                for (let i = len - 1; i >= start; i--) {
+                    this[i + moveN] = this[i];
+                }
+            }
+    
+            for (let i = 0; i < items.length; i++) {
+                this[i + start] = items[i];
+            }
+    
+            this.length = len + moveN;
+    
+            return res;
         }
+    });
 
-        for (let i = 0; i < items.length; i++) {
-            this[i + start] = items[i];
-        }
-
-        this.length = len + moveN;
-
-        return res;
-    }
-});
-
-setProps(Array, {
-    isArray(val: any) { return internals.isArr(val); }
-});
+    setProps(Array, {
+        isArray(val: any) { return internals.isArray(val); }
+    });
+    internals.markSpecial(Array);
+});

lib/values/boolean.ts

@@ -1,22 +1,12 @@
-interface Boolean {
-    valueOf(): boolean;
-    constructor: BooleanConstructor;
-}
-interface BooleanConstructor {
-    (val: any): boolean;
-    new (val: any): Boolean;
-    prototype: Boolean;
-}
-
-declare var Boolean: BooleanConstructor;
-
-gt.Boolean = function (this: Boolean | undefined, arg) {
-    var val;
-    if (arguments.length === 0) val = false;
-    else val = !!arg;
-    if (this === undefined || this === null) return val;
-    else (this as any).value = val;
-} as BooleanConstructor;
-
-Boolean.prototype = (false as any).__proto__ as Boolean;
-setConstr(Boolean.prototype, Boolean);
+define("values/boolean", () => {
+    var Boolean = env.global.Boolean = function (this: Boolean | undefined, arg) {
+        var val;
+        if (arguments.length === 0) val = false;
+        else val = !!arg;
+        if (this === undefined || this === null) return val;
+        else (this as any).value = val;
+    } as BooleanConstructor;
+    
+    env.setProto('bool', Boolean.prototype);
+    setConstr(Boolean.prototype, Boolean);
+});

lib/values/errors.ts

@@ -1,89 +1,46 @@
-interface Error {
-    constructor: ErrorConstructor;
-    name: string;
-    message: string;
-    stack: string[];
-}
-interface ErrorConstructor {
-    (msg?: any): Error;
-    new (msg?: any): Error;
-    prototype: Error;
-}
+define("values/errors", () => {
+    var Error = env.global.Error = function Error(msg: string) {
+        if (msg === undefined) msg = '';
+        else msg += '';
+    
+        return Object.setPrototypeOf({
+            message: msg,
+            stack: [] as string[],
+        }, Error.prototype);
+    } as ErrorConstructor;
 
-interface TypeErrorConstructor extends ErrorConstructor {
-    (msg?: any): TypeError;
-    new (msg?: any): TypeError;
-    prototype: Error;
-}
-interface TypeError extends Error {
-    constructor: TypeErrorConstructor;
-    name: 'TypeError';
-}
+    setConstr(Error.prototype, Error);
+    setProps(Error.prototype, {
+        name: 'Error',
+        toString: internals.setEnv(function(this: Error) {
+            if (!(this instanceof Error)) return '';
+        
+            if (this.message === '') return this.name;
+            else return this.name + ': ' + this.message;
+        }, env)
+    });
+    env.setProto('error', Error.prototype);
+    internals.markSpecial(Error);
 
-interface RangeErrorConstructor extends ErrorConstructor {
-    (msg?: any): RangeError;
-    new (msg?: any): RangeError;
-    prototype: Error;
-}
-interface RangeError extends Error {
-    constructor: RangeErrorConstructor;
-    name: 'RangeError';
-}
+    function makeError<T1 extends ErrorConstructor>(name: string, proto: string): T1 {
+        function constr (msg: string) {
+            var res = new Error(msg);
+            (res as any).__proto__ = constr.prototype;
+            return res;
+        }
 
-interface SyntaxErrorConstructor extends ErrorConstructor {
-    (msg?: any): RangeError;
-    new (msg?: any): RangeError;
-    prototype: Error;
-}
-interface SyntaxError extends Error {
-    constructor: SyntaxErrorConstructor;
-    name: 'SyntaxError';
-}
+        (constr as any).__proto__ = Error;
+        (constr.prototype as any).__proto__ = env.proto('error');
+        setConstr(constr.prototype, constr as ErrorConstructor);
+        setProps(constr.prototype, { name: name });
 
-
-declare var Error: ErrorConstructor;
-declare var RangeError: RangeErrorConstructor;
-declare var TypeError: TypeErrorConstructor;
-declare var SyntaxError: SyntaxErrorConstructor;
-
-gt.Error = function Error(msg: string) {
-    if (msg === undefined) msg = '';
-    else msg += '';
-
-    return Object.setPrototypeOf({
-        message: msg,
-        stack: [] as string[],
-    }, Error.prototype);
-} as ErrorConstructor;
-
-Error.prototype = internals.err ?? {};
-Error.prototype.name = 'Error';
-setConstr(Error.prototype, Error);
-
-Error.prototype.toString = function() {
-    if (!(this instanceof Error)) return '';
-
-    if (this.message === '') return this.name;
-    else return this.name + ': ' + this.message;
-};
-
-function makeError<T extends ErrorConstructor>(name: string, proto: any): T {
-    var err = function (msg: string) {
-        var res = new Error(msg);
-        (res as any).__proto__ = err.prototype;
-        return res;
-    } as T;
-
-    err.prototype = proto;
-    err.prototype.name = name;
-    setConstr(err.prototype, err as ErrorConstructor);
-    (err.prototype as any).__proto__ = Error.prototype;
-    (err as any).__proto__ = Error;
-    internals.special(err);
-
-    return err;
-}
-
-gt.RangeError = makeError('RangeError', internals.range ?? {});
-gt.TypeError = makeError('TypeError', internals.type ?? {});
-gt.SyntaxError = makeError('SyntaxError', internals.syntax ?? {});
+        internals.markSpecial(constr);
+        env.setProto(proto, constr.prototype);
+        
+        return constr as T1;
+    }
+    
+    env.global.RangeError = makeError('RangeError', 'rangeErr');
+    env.global.TypeError = makeError('TypeError', 'typeErr');
+    env.global.SyntaxError = makeError('SyntaxError', 'syntaxErr');
+});

lib/values/function.ts

@@ -1,181 +1,140 @@
-interface Function {
-    apply(this: Function, thisArg: any, argArray?: any): any;
-    call(this: Function, thisArg: any, ...argArray: any[]): any;
-    bind(this: Function, thisArg: any, ...argArray: any[]): Function;
+define("values/function", () => {
+    var Function = env.global.Function = function() {
+        throw 'Using the constructor Function() is forbidden.';
+    } as unknown as FunctionConstructor;
 
-    toString(): string;
+    env.setProto('function', Function.prototype);
+    setConstr(Function.prototype, Function);
 
-    prototype: any;
-    constructor: FunctionConstructor;
-    readonly length: number;
-    name: string;
-}
-interface FunctionConstructor extends Function {
-    (...args: string[]): (...args: any[]) => any;
-    new (...args: string[]): (...args: any[]) => any;
-    prototype: Function;
-    async<ArgsT extends any[], RetT>(
-        func: (await: <T>(val: T) => Awaited<T>) => (...args: ArgsT) => RetT
-    ): (...args: ArgsT) => Promise<RetT>;
-    asyncGenerator<ArgsT extends any[], RetT>(
-        func: (await: <T>(val: T) => Awaited<T>, _yield: <T>(val: T) => void) => (...args: ArgsT) => RetT
-    ): (...args: ArgsT) => AsyncGenerator<RetT>;
-    generator<ArgsT extends any[], T = unknown, RetT = unknown, TNext = unknown>(
-        func: (_yield: <T>(val: T) => TNext) => (...args: ArgsT) => RetT
-    ): (...args: ArgsT) => Generator<T, RetT, TNext>;
-}
+    setProps(Function.prototype, {
+        apply(thisArg, args) {
+            if (typeof args !== 'object') throw 'Expected arguments to be an array-like object.';
+            var len = args.length - 0;
+            let newArgs: any[];
+            if (internals.isArray(args)) newArgs = args;
+            else {
+                newArgs = [];
 
-interface CallableFunction extends Function {
-    (...args: any[]): any;
-    apply<ThisArg, Args extends any[], RetT>(this: (this: ThisArg, ...args: Args) => RetT, thisArg: ThisArg, argArray?: Args): RetT;
-    call<ThisArg, Args extends any[], RetT>(this: (this: ThisArg, ...args: Args) => RetT, thisArg: ThisArg, ...argArray: Args): RetT;
-    bind<ThisArg, Args extends any[], Rest extends any[], RetT>(this: (this: ThisArg, ...args: [ ...Args, ...Rest ]) => RetT, thisArg: ThisArg, ...argArray: Args): (this: void, ...args: Rest) => RetT;
-}
-interface NewableFunction extends Function {
-    new(...args: any[]): any;
-    apply<Args extends any[], RetT>(this: new (...args: Args) => RetT, thisArg: any, argArray?: Args): RetT;
-    call<Args extends any[], RetT>(this: new (...args: Args) => RetT, thisArg: any, ...argArray: Args): RetT;
-    bind<Args extends any[], RetT>(this: new (...args: Args) => RetT, thisArg: any, ...argArray: Args): new (...args: Args) => RetT;
-}
-
-declare var Function: FunctionConstructor;
-
-gt.Function = function() {
-    throw 'Using the constructor Function() is forbidden.';
-} as unknown as FunctionConstructor;
-
-Function.prototype = (Function as any).__proto__ as Function;
-setConstr(Function.prototype, Function);
-
-setProps(Function.prototype, {
-    apply(thisArg, args) {
-        if (typeof args !== 'object') throw 'Expected arguments to be an array-like object.';
-        var len = args.length - 0;
-        let newArgs: any[];
-        if (Array.isArray(args)) newArgs = args;
-        else {
-            newArgs = [];
-
-            while (len >= 0) {
-                len--;
-                newArgs[len] = args[len];
-            }
-        }
-
-        return internals.apply(this, thisArg, newArgs);
-    },
-    call(thisArg, ...args) {
-        return this.apply(thisArg, args);
-    },
-    bind(thisArg, ...args) {
-        var func = this;
-
-        var res = function() {
-            var resArgs = [];
-
-            for (var i = 0; i < args.length; i++) {
-                resArgs[i] = args[i];
-            }
-            for (var i = 0; i < arguments.length; i++) {
-                resArgs[i + args.length] = arguments[i];
-            }
-
-            return func.apply(thisArg, resArgs);
-        };
-        res.name = "<bound> " + func.name;
-        return res;
-    },
-    toString() {
-        return 'function (...) { ... }';
-    },
-});
-setProps(Function, {
-    async(func) {
-        if (typeof func !== 'function') throw new TypeError('Expected func to be function.');
-
-        return function (this: any) {
-            const args = arguments;
-
-            return new Promise((res, rej) => {
-                const gen = Function.generator(func as any).apply(this, args as any);
-
-                (function next(type: 'none' | 'err' | 'ret', val?: any) {
-                    try {
-                        let result;
-
-                        switch (type) {
-                            case 'err': result = gen.throw(val); break;
-                            case 'ret': result = gen.next(val); break;
-                            case 'none': result = gen.next(); break;
-                        }
-                        if (result.done) res(result.value);
-                        else Promise.resolve(result.value).then(
-                            v => next('ret', v),
-                            v => next('err', v)
-                        )
-                    }
-                    catch (e) {
-                        rej(e);
-                    }
-                })('none');
-            });
-        };
-    },
-    asyncGenerator(func) {
-        if (typeof func !== 'function') throw new TypeError('Expected func to be function.');
-
-
-        return function(this: any) {
-            const gen = Function.generator<any[], ['await' | 'yield', any]>((_yield) => func(
-                val => _yield(['await', val]) as any,
-                val => _yield(['yield', val])
-            )).apply(this, arguments as any);
-
-            const next = (resolve: Function, reject: Function, type: 'none' | 'val' | 'ret' | 'err', val?: any) => {
-                let res;
-
-                try {
-                    switch (type) {
-                        case 'val': res = gen.next(val); break;
-                        case 'ret': res = gen.return(val); break;
-                        case 'err': res = gen.throw(val); break;
-                        default: res = gen.next(); break;
-                    }
+                while (len >= 0) {
+                    len--;
+                    newArgs[len] = args[len];
                 }
-                catch (e) { return reject(e); }
+            }
 
-                if (res.done) return { done: true, res: <any>res };
-                else if (res.value[0] === 'await') Promise.resolve(res.value[1]).then(
-                    v => next(resolve, reject, 'val', v),
-                    v => next(resolve, reject, 'err', v),
-                )
-                else resolve({ done: false, value: res.value[1] });
+            return internals.apply(this, thisArg, newArgs);
+        },
+        call(thisArg, ...args) {
+            return this.apply(thisArg, args);
+        },
+        bind(thisArg, ...args) {
+            const func = this;
+            const res = function() {
+                const resArgs = [];
+
+                for (let i = 0; i < args.length; i++) {
+                    resArgs[i] = args[i];
+                }
+                for (let i = 0; i < arguments.length; i++) {
+                    resArgs[i + args.length] = arguments[i];
+                }
+
+                return func.apply(thisArg, resArgs);
             };
+            res.name = "<bound> " + func.name;
+            return res;
+        },
+        toString() {
+            return 'function (...) { ... }';
+        },
+    });
+    setProps(Function, {
+        async(func) {
+            if (typeof func !== 'function') throw new TypeError('Expected func to be function.');
 
-            return {
-                next() {
-                    const args = arguments;
-                    if (arguments.length === 0) return new Promise((res, rej) => next(res, rej, 'none'));
-                    else return new Promise((res, rej) => next(res, rej, 'val', args[0]));
-                },
-                return: (value) => new Promise((res, rej) => next(res, rej, 'ret', value)),
-                throw: (value) => new Promise((res, rej) => next(res, rej, 'err', value)),
-                [Symbol.asyncIterator]() { return this; }
+            return function (this: any) {
+                const args = arguments;
+
+                return new Promise((res, rej) => {
+                    const gen = internals.apply(internals.generator(func as any), this, args as any);
+
+                    (function next(type: 'none' | 'err' | 'ret', val?: any) {
+                        try {
+                            let result;
+
+                            switch (type) {
+                                case 'err': result = gen.throw(val); break;
+                                case 'ret': result = gen.next(val); break;
+                                case 'none': result = gen.next(); break;
+                            }
+                            if (result.done) res(result.value);
+                            else Promise.resolve(result.value).then(
+                                v => next('ret', v),
+                                v => next('err', v)
+                            )
+                        }
+                        catch (e) {
+                            rej(e);
+                        }
+                    })('none');
+                });
+            };
+        },
+        asyncGenerator(func) {
+            if (typeof func !== 'function') throw new TypeError('Expected func to be function.');
+
+            return function(this: any, ...args: any[]) {
+                const gen = internals.apply(internals.generator((_yield) => func(
+                    val => _yield(['await', val]) as any,
+                    val => _yield(['yield', val])
+                )), this, args) as Generator<['await' | 'yield', any]>;
+
+                const next = (resolve: Function, reject: Function, type: 'none' | 'val' | 'ret' | 'err', val?: any) => {
+                    let res;
+
+                    try {
+                        switch (type) {
+                            case 'val': res = gen.next(val); break;
+                            case 'ret': res = gen.return(val); break;
+                            case 'err': res = gen.throw(val); break;
+                            default: res = gen.next(); break;
+                        }
+                    }
+                    catch (e) { return reject(e); }
+
+                    if (res.done) return { done: true, res: <any>res };
+                    else if (res.value[0] === 'await') Promise.resolve(res.value[1]).then(
+                        v => next(resolve, reject, 'val', v),
+                        v => next(resolve, reject, 'err', v),
+                    )
+                    else resolve({ done: false, value: res.value[1] });
+                };
+
+                return {
+                    next() {
+                        const args = arguments;
+                        if (arguments.length === 0) return new Promise((res, rej) => next(res, rej, 'none'));
+                        else return new Promise((res, rej) => next(res, rej, 'val', args[0]));
+                    },
+                    return: (value) => new Promise((res, rej) => next(res, rej, 'ret', value)),
+                    throw: (value) => new Promise((res, rej) => next(res, rej, 'err', value)),
+                    [env.global.Symbol.asyncIterator]() { return this; }
+                }
+            }
+        },
+        generator(func) {
+            if (typeof func !== 'function') throw new TypeError('Expected func to be function.');
+            const gen = internals.generator(func);
+            return function(this: any, ...args: any[]) {
+                const it = internals.apply(gen, this, args);
+
+                return {
+                    next: (...args) => internals.apply(it.next, it, args),
+                    return: (val) => internals.apply(it.next, it, [val]),
+                    throw: (val) => internals.apply(it.next, it, [val]),
+                    [env.global.Symbol.iterator]() { return this; }
+                }
             }
         }
-    },
-    generator(func) {
-        if (typeof func !== 'function') throw new TypeError('Expected func to be function.');
-        const gen = internals.makeGenerator(func);
-        return (...args: any[]) => {
-            const it = gen(args);
-
-            return {
-                next: it.next,
-                return: it.return,
-                throw: it.throw,
-                [Symbol.iterator]() { return this; }
-            }
-        }
-    }
-})
+    })
+    internals.markSpecial(Function);
+});

lib/values/number.ts

@@ -1,50 +1,33 @@
-interface Number {
-    toString(): string;
-    valueOf(): number;
-    constructor: NumberConstructor;
-}
-interface NumberConstructor {
-    (val: any): number;
-    new (val: any): Number;
-    prototype: Number;
-    parseInt(val: unknown): number;
-    parseFloat(val: unknown): number;
-}
+define("values/number", () => {
+    var Number = env.global.Number = function(this: Number | undefined, arg: any) {
+        var val;
+        if (arguments.length === 0) val = 0;
+        else val = arg - 0;
+        if (this === undefined || this === null) return val;
+        else (this as any).value = val;
+    } as NumberConstructor;
 
-declare var Number: NumberConstructor;
-declare var parseInt: typeof Number.parseInt;
-declare var parseFloat: typeof Number.parseFloat;
-declare var NaN: number;
-declare var Infinity: number;
+    env.setProto('number', Number.prototype);
+    setConstr(Number.prototype, Number);
 
-gt.Number = function(this: Number | undefined, arg: any) {
-    var val;
-    if (arguments.length === 0) val = 0;
-    else val = arg - 0;
-    if (this === undefined || this === null) return val;
-    else (this as any).value = val;
-} as NumberConstructor;
+    setProps(Number.prototype, {
+        valueOf() {
+            if (typeof this === 'number') return this;
+            else return (this as any).value;
+        },
+        toString() {
+            if (typeof this === 'number') return this + '';
+            else return (this as any).value + '';
+        }
+    });
 
-Number.prototype = (0 as any).__proto__ as Number;
-setConstr(Number.prototype, Number);
+    setProps(Number, {
+        parseInt(val) { return Math.trunc(val as any - 0); },
+        parseFloat(val) { return val as any - 0; },
+    });
 
-setProps(Number.prototype, {
-    valueOf() {
-        if (typeof this === 'number') return this;
-        else return (this as any).value;
-    },
-    toString() {
-        if (typeof this === 'number') return this + '';
-        else return (this as any).value + '';
-    }
-});
-
-setProps(Number, {
-    parseInt(val) { return Math.trunc(Number.parseFloat(val)); },
-    parseFloat(val) { return internals.parseFloat(val); },
-});
-
-Object.defineProperty(gt, 'parseInt', { value: Number.parseInt, writable: false });
-Object.defineProperty(gt, 'parseFloat', { value: Number.parseFloat, writable: false });
-Object.defineProperty(gt, 'NaN', { value: 0 / 0, writable: false });
-Object.defineProperty(gt, 'Infinity', { value: 1 / 0, writable: false });
+    env.global.parseInt = Number.parseInt;
+    env.global.parseFloat = Number.parseFloat;
+    env.global.Object.defineProperty(env.global, 'NaN', { value: 0 / 0, writable: false });
+    env.global.Object.defineProperty(env.global, 'Infinity', { value: 1 / 0, writable: false });
+});

lib/values/object.ts

@@ -1,234 +1,226 @@
-    interface Object {
-    constructor: NewableFunction;
-    [Symbol.typeName]: string;
+define("values/object", () => {
+    var Object = env.global.Object = function(arg: any) {
+        if (arg === undefined || arg === null) return {};
+        else if (typeof arg === 'boolean') return new Boolean(arg);
+        else if (typeof arg === 'number') return new Number(arg);
+        else if (typeof arg === 'string') return new String(arg);
+        return arg;
+    } as ObjectConstructor;
 
-    valueOf(): this;
-    toString(): string;
-    hasOwnProperty(key: any): boolean;
-}
-interface ObjectConstructor extends Function {
-    (arg: string): String;
-    (arg: number): Number;
-    (arg: boolean): Boolean;
-    (arg?: undefined | null): {};
-    <T extends object>(arg: T): T;
+    env.setProto('object', Object.prototype);
+    (Object.prototype as any).__proto__ = null;
+    setConstr(Object.prototype, Object as any);
 
-    new (arg: string): String;
-    new (arg: number): Number;
-    new (arg: boolean): Boolean;
-    new (arg?: undefined | null): {};
-    new <T extends object>(arg: T): T;
-
-    prototype: Object;
-
-    assign<T extends object>(target: T, ...src: object[]): T;
-    create<T extends object>(proto: T, props?: { [key: string]: PropertyDescriptor<any, T> }): T;
-
-    keys<T extends object>(obj: T, onlyString?: true): (keyof T)[];
-    keys<T extends object>(obj: T, onlyString: false): any[];
-    entries<T extends object>(obj: T, onlyString?: true): [keyof T, T[keyof T]][];
-    entries<T extends object>(obj: T, onlyString: false): [any, any][];
-    values<T extends object>(obj: T, onlyString?: true): (T[keyof T])[];
-    values<T extends object>(obj: T, onlyString: false): any[];
-
-    fromEntries(entries: Iterable<[any, any]>): object;
-
-    defineProperty<T, ThisT extends object>(obj: ThisT, key: any, desc: PropertyDescriptor<T, ThisT>): ThisT;
-    defineProperties<ThisT extends object>(obj: ThisT, desc: { [key: string]: PropertyDescriptor<any, ThisT> }): ThisT;
-
-    getOwnPropertyNames<T extends object>(obj: T): (keyof T)[];
-    getOwnPropertySymbols<T extends object>(obj: T): (keyof T)[];
-    hasOwn<T extends object, KeyT>(obj: T, key: KeyT): boolean;
-
-    getOwnPropertyDescriptor<T extends object, KeyT extends keyof T>(obj: T, key: KeyT): PropertyDescriptor<T[KeyT], T>;
-    getOwnPropertyDescriptors<T extends object>(obj: T): { [x in keyof T]: PropertyDescriptor<T[x], T> };
-
-    getPrototypeOf(obj: any): object | null;
-    setPrototypeOf<T>(obj: T, proto: object | null): T;
-
-    preventExtensions<T extends object>(obj: T): T;
-    seal<T extends object>(obj: T): T;
-    freeze<T extends object>(obj: T): T;
-
-    isExtensible(obj: object): boolean;
-    isSealed(obj: object): boolean;
-    isFrozen(obj: object): boolean;
-}
-
-declare var Object: ObjectConstructor;
-
-gt.Object = function(arg: any) {
-    if (arg === undefined || arg === null) return {};
-    else if (typeof arg === 'boolean') return new Boolean(arg);
-    else if (typeof arg === 'number') return new Number(arg);
-    else if (typeof arg === 'string') return new String(arg);
-    return arg;
-} as ObjectConstructor;
-
-Object.prototype = ({} as any).__proto__ as Object;
-setConstr(Object.prototype, Object as any);
-
-function throwNotObject(obj: any, name: string) {
-    if (obj === null || typeof obj !== 'object' && typeof obj !== 'function') {
-        throw new TypeError(`Object.${name} may only be used for objects.`);
+    function throwNotObject(obj: any, name: string) {
+        if (obj === null || typeof obj !== 'object' && typeof obj !== 'function') {
+            throw new TypeError(`Object.${name} may only be used for objects.`);
+        }
+    }
+    function check(obj: any) {
+        return typeof obj === 'object' && obj !== null || typeof obj === 'function';
     }
-}
-function check(obj: any) {
-    return typeof obj === 'object' && obj !== null || typeof obj === 'function';
-}
 
-setProps(Object, {
-    assign: function(dst, ...src) {
-        throwNotObject(dst, 'assign');
-        for (let i = 0; i < src.length; i++) {
-            const obj = src[i];
-            throwNotObject(obj, 'assign');
-            for (const key of Object.keys(obj)) {
-                (dst as any)[key] = (obj as any)[key];
+    setProps(Object, {
+        assign(dst, ...src) {
+            throwNotObject(dst, 'assign');
+            for (let i = 0; i < src.length; i++) {
+                const obj = src[i];
+                throwNotObject(obj, 'assign');
+                for (const key of Object.keys(obj)) {
+                    (dst as any)[key] = (obj as any)[key];
+                }
             }
+            return dst;
+        },
+        create(obj, props) {
+            props ??= {};
+            return Object.defineProperties({ __proto__: obj }, props as any) as any;
+        },
+
+        defineProperty(obj, key, attrib) {
+            throwNotObject(obj, 'defineProperty');
+            if (typeof attrib !== 'object') throw new TypeError('Expected attributes to be an object.');
+
+            if ('value' in attrib) {
+                if ('get' in attrib || 'set' in attrib) throw new TypeError('Cannot specify a value and accessors for a property.');
+                if (!internals.defineField(
+                    obj, key,
+                    attrib.value,
+                    !!attrib.writable,
+                    !!attrib.enumerable,
+                    !!attrib.configurable
+                )) throw new TypeError('Can\'t define property \'' + key + '\'.');
+            }
+            else {
+                if (typeof attrib.get !== 'function' && attrib.get !== undefined) throw new TypeError('Get accessor must be a function.');
+                if (typeof attrib.set !== 'function' && attrib.set !== undefined) throw new TypeError('Set accessor must be a function.');
+
+                if (!internals.defineProp(
+                    obj, key,
+                    attrib.get,
+                    attrib.set,
+                    !!attrib.enumerable,
+                    !!attrib.configurable
+                )) throw new TypeError('Can\'t define property \'' + key + '\'.');
+            }
+
+            return obj;
+        },
+        defineProperties(obj, attrib) {
+            throwNotObject(obj, 'defineProperties');
+            if (typeof attrib !== 'object' && typeof attrib !== 'function') throw 'Expected second argument to be an object.';
+
+            for (var key in attrib) {
+                Object.defineProperty(obj, key, attrib[key]);
+            }
+
+            return obj;
+        },
+
+        keys(obj, onlyString) {
+            return internals.keys(obj, !!(onlyString ?? true));
+        },
+        entries(obj, onlyString) {
+            const res = [];
+            const keys = internals.keys(obj, !!(onlyString ?? true));
+
+            for (let i = 0; i < keys.length; i++) {
+                res[i] = [ keys[i], (obj as any)[keys[i]] ];
+            }
+
+            return keys;
+        },
+        values(obj, onlyString) {
+            const res = [];
+            const keys = internals.keys(obj, !!(onlyString ?? true));
+
+            for (let i = 0; i < keys.length; i++) {
+                res[i] = (obj as any)[keys[i]];
+            }
+
+            return keys;
+        },
+
+        getOwnPropertyDescriptor(obj, key) {
+            return internals.ownProp(obj, key) as any;
+        },
+        getOwnPropertyDescriptors(obj) {
+            const res = [];
+            const keys = internals.ownPropKeys(obj);
+
+            for (let i = 0; i < keys.length; i++) {
+                res[i] = internals.ownProp(obj, keys[i]);
+            }
+
+            return res;
+        },
+
+        getOwnPropertyNames(obj) {
+            const arr = internals.ownPropKeys(obj);
+            const res = [];
+
+            for (let i = 0; i < arr.length; i++) {
+                if (typeof arr[i] === 'symbol') continue;
+                res[res.length] = arr[i];
+            }
+
+            return res as any;
+        },
+        getOwnPropertySymbols(obj) {
+            const arr = internals.ownPropKeys(obj);
+            const res = [];
+
+            for (let i = 0; i < arr.length; i++) {
+                if (typeof arr[i] !== 'symbol') continue;
+                res[res.length] = arr[i];
+            }
+
+            return res as any;
+        },
+        hasOwn(obj, key) {
+            const keys = internals.ownPropKeys(obj);
+
+            for (let i = 0; i < keys.length; i++) {
+                if (keys[i] === key) return true;
+            }
+
+            return false;
+        },
+
+        getPrototypeOf(obj) {
+            return obj.__proto__;
+        },
+        setPrototypeOf(obj, proto) {
+            (obj as any).__proto__ = proto;
+            return obj;
+        },
+
+        fromEntries(iterable) {
+            const res = {} as any;
+
+            for (const el of iterable) {
+                res[el[0]] = el[1];
+            }
+
+            return res;
+        },
+
+        preventExtensions(obj) {
+            throwNotObject(obj, 'preventExtensions');
+            internals.lock(obj, 'ext');
+            return obj;
+        },
+        seal(obj) {
+            throwNotObject(obj, 'seal');
+            internals.lock(obj, 'seal');
+            return obj;
+        },
+        freeze(obj) {
+            throwNotObject(obj, 'freeze');
+            internals.lock(obj, 'freeze');
+            return obj;
+        },
+
+        isExtensible(obj) {
+            if (!check(obj)) return false;
+            return internals.extensible(obj);
+        },
+        isSealed(obj) {
+            if (!check(obj)) return true;
+            if (internals.extensible(obj)) return false;
+            const keys = internals.ownPropKeys(obj);
+
+            for (let i = 0; i < keys.length; i++) {
+                if (internals.ownProp(obj, keys[i]).configurable) return false;
+            }
+
+            return true;
+        },
+        isFrozen(obj) {
+            if (!check(obj)) return true;
+            if (internals.extensible(obj)) return false;
+            const keys = internals.ownPropKeys(obj);
+
+            for (let i = 0; i < keys.length; i++) {
+                const prop = internals.ownProp(obj, keys[i]);
+                if (prop.configurable) return false;
+                if ('writable' in prop && prop.writable) return false;
+            }
+
+            return true;
         }
-        return dst;
-    },
-    create(obj, props) {
-        props ??= {};
-        return Object.defineProperties({ __proto__: obj }, props as any) as any;
-    },
+    });
 
-    defineProperty(obj, key, attrib) {
-        throwNotObject(obj, 'defineProperty');
-        if (typeof attrib !== 'object') throw new TypeError('Expected attributes to be an object.');
-    
-        if ('value' in attrib) {
-            if ('get' in attrib || 'set' in attrib) throw new TypeError('Cannot specify a value and accessors for a property.');
-            if (!internals.defineField(
-                obj, key,
-                attrib.value,
-                !!attrib.writable,
-                !!attrib.enumerable,
-                !!attrib.configurable
-            )) throw new TypeError('Can\'t define property \'' + key + '\'.');
-        }
-        else {
-            if (typeof attrib.get !== 'function' && attrib.get !== undefined) throw new TypeError('Get accessor must be a function.');
-            if (typeof attrib.set !== 'function' && attrib.set !== undefined) throw new TypeError('Set accessor must be a function.');
-    
-            if (!internals.defineProp(
-                obj, key,
-                attrib.get,
-                attrib.set,
-                !!attrib.enumerable,
-                !!attrib.configurable
-            )) throw new TypeError('Can\'t define property \'' + key + '\'.');
-        }
-    
-        return obj;
-    },
-    defineProperties(obj, attrib) {
-        throwNotObject(obj, 'defineProperties');
-        if (typeof attrib !== 'object' && typeof attrib !== 'function') throw 'Expected second argument to be an object.';
-    
-        for (var key in attrib) {
-            Object.defineProperty(obj, key, attrib[key]);
-        }
-    
-        return obj;
-    },
-
-    keys(obj, onlyString) {
-        onlyString = !!(onlyString ?? true);
-        return internals.keys(obj, onlyString);
-    },
-    entries(obj, onlyString) {
-        return Object.keys(obj, onlyString).map(v => [ v, (obj as any)[v] ]);
-    },
-    values(obj, onlyString) {
-        return Object.keys(obj, onlyString).map(v => (obj as any)[v]);
-    },
-
-    getOwnPropertyDescriptor(obj, key) {
-        return internals.ownProp(obj, key);
-    },
-    getOwnPropertyDescriptors(obj) {
-        return Object.fromEntries([
-            ...Object.getOwnPropertyNames(obj),
-            ...Object.getOwnPropertySymbols(obj)
-        ].map(v => [ v, Object.getOwnPropertyDescriptor(obj, v) ])) as any;
-    },
-
-    getOwnPropertyNames(obj) {
-        return internals.ownPropKeys(obj, false);
-    },
-    getOwnPropertySymbols(obj) {
-        return internals.ownPropKeys(obj, true);
-    },
-    hasOwn(obj, key) {
-        if (Object.getOwnPropertyNames(obj).includes(key)) return true;
-        if (Object.getOwnPropertySymbols(obj).includes(key)) return true;
-        return false;
-    },
-
-    getPrototypeOf(obj) {
-        return obj.__proto__;
-    },
-    setPrototypeOf(obj, proto) {
-        (obj as any).__proto__ = proto;
-        return obj;
-    },
-
-    fromEntries(iterable) {
-        const res = {} as any;
-
-        for (const el of iterable) {
-            res[el[0]] = el[1];
-        }
-
-        return res;
-    },
-
-    preventExtensions(obj) {
-        throwNotObject(obj, 'preventExtensions');
-        internals.preventExtensions(obj);
-        return obj;
-    },
-    seal(obj) {
-        throwNotObject(obj, 'seal');
-        internals.seal(obj);
-        return obj;
-    },
-    freeze(obj) {
-        throwNotObject(obj, 'freeze');
-        internals.freeze(obj);
-        return obj;
-    },
-
-    isExtensible(obj) {
-        if (!check(obj)) return false;
-        return internals.extensible(obj);
-    },
-    isSealed(obj) {
-        if (!check(obj)) return true;
-        if (Object.isExtensible(obj)) return false;
-        return Object.getOwnPropertyNames(obj).every(v => !Object.getOwnPropertyDescriptor(obj, v).configurable);
-    },
-    isFrozen(obj) {
-        if (!check(obj)) return true;
-        if (Object.isExtensible(obj)) return false;
-        return Object.getOwnPropertyNames(obj).every(v => {
-            var prop = Object.getOwnPropertyDescriptor(obj, v);
-            if ('writable' in prop && prop.writable) return false;
-            return !prop.configurable;
-        });
-    }
-});
-
-setProps(Object.prototype, {
-    valueOf() {
-        return this;
-    },
-    toString() {
-        return '[object ' + (this[Symbol.typeName] ?? 'Unknown') + ']';
-    },
-    hasOwnProperty(key) {
-        return Object.hasOwn(this, key);
-    },
-});
+    setProps(Object.prototype, {
+        valueOf() {
+            return this;
+        },
+        toString() {
+            return '[object ' + (this[env.global.Symbol.typeName] ?? 'Unknown') + ']';
+        },
+        hasOwnProperty(key) {
+            return Object.hasOwn(this, key);
+        },
+    });
+    internals.markSpecial(Object);
+});

lib/values/string.ts

@@ -1,261 +1,267 @@
-interface Replacer {
-    [Symbol.replace](target: string, val: string | ((match: string, ...args: any[]) => string)): string;
-}
+define("values/string", () => {
+    var String = env.global.String = function(this: String | undefined, arg: any) {
+        var val;
+        if (arguments.length === 0) val = '';
+        else val = arg + '';
+        if (this === undefined || this === null) return val;
+        else (this as any).value = val;
+    } as StringConstructor;
 
-interface String {
-    [i: number]: string;
+    env.setProto('string', String.prototype);
+    setConstr(String.prototype, String);
 
-    toString(): string;
-    valueOf(): string;
+    setProps(String.prototype, {
+        toString() {
+            if (typeof this === 'string') return this;
+            else return (this as any).value;
+        },
+        valueOf() {
+            if (typeof this === 'string') return this;
+            else return (this as any).value;
+        },
 
-    charAt(pos: number): string;
-    charCodeAt(pos: number): number;
-    substring(start?: number, end?: number): string;
-    slice(start?: number, end?: number): string;
-    substr(start?: number, length?: number): string;
+        substring(start, end) {
+            if (typeof this !== 'string') {
+                if (this instanceof String) return (this as any).value.substring(start, end);
+                else throw new Error('This function may be used only with primitive or object strings.');
+            }
+            start = start ?? 0 | 0;
+            end = (end ?? this.length) | 0;
 
-    startsWith(str: string, pos?: number): string;
-    endsWith(str: string, pos?: number): string;
+            const res = [];
 
-    replace(pattern: string | Replacer, val: string): string;
-    replaceAll(pattern: string | Replacer, val: string): string;
+            for (let i = start; i < end; i++) {
+                if (i >= 0 && i < this.length) res[res.length] = this[i];
+            }
 
-    match(pattern: string | Matcher): RegExpResult | string[] | null;
-    matchAll(pattern: string | Matcher): IterableIterator<RegExpResult>;
+            return internals.stringFromStrings(res);
+        },
+        substr(start, length) {
+            start = start ?? 0 | 0;
 
-    split(pattern: string | Splitter, limit?: number, sensible?: boolean): string;
+            if (start >= this.length) start = this.length - 1;
+            if (start < 0) start = 0;
 
-    concat(...others: string[]): string;
-    indexOf(term: string | Searcher, start?: number): number;
-    lastIndexOf(term: string | Searcher, start?: number): number;
+            length = (length ?? this.length - start) | 0;
+            const end = length + start;
+            const res = [];
 
-    toLowerCase(): string;
-    toUpperCase(): string;
+            for (let i = start; i < end; i++) {
+                if (i >= 0 && i < this.length) res[res.length] = this[i];
+            }
 
-    trim(): string;
+            return internals.stringFromStrings(res);
+        },
 
-    includes(term: string, start?: number): boolean;
+        toLowerCase() {
+            // TODO: Implement localization
+            const res = [];
 
-    length: number;
+            for (let i = 0; i < this.length; i++) {
+                const c = internals.char(this[i]);
 
-    constructor: StringConstructor;
-}
-interface StringConstructor {
-    (val: any): string;
-    new (val: any): String;
+                if (c >= 65 && c <= 90) res[i] = c - 65 + 97;
+                else res[i] = c;
+            }
 
-    fromCharCode(val: number): string;
+            return internals.stringFromChars(res);
+        },
+        toUpperCase() {
+            // TODO: Implement localization
+            const res = [];
 
-    prototype: String;
-}
+            for (let i = 0; i < this.length; i++) {
+                const c = internals.char(this[i]);
 
-declare var String: StringConstructor;
+                if (c >= 97 && c <= 122) res[i] = c - 97 + 65;
+                else res[i] = c;
+            }
 
-gt.String = function(this: String | undefined, arg: any) {
-    var val;
-    if (arguments.length === 0) val = '';
-    else val = arg + '';
-    if (this === undefined || this === null) return val;
-    else (this as any).value = val;
-} as StringConstructor;
+            return internals.stringFromChars(res);
+        },
 
-String.prototype = ('' as any).__proto__ as String;
-setConstr(String.prototype, String);
+        charAt(pos) {
+            if (typeof this !== 'string') {
+                if (this instanceof String) return (this as any).value.charAt(pos);
+                else throw new Error('This function may be used only with primitive or object strings.');
+            }
 
-setProps(String.prototype, {
-    toString() {
-        if (typeof this === 'string') return this;
-        else return (this as any).value;
-    },
-    valueOf() {
-        if (typeof this === 'string') return this;
-        else return (this as any).value;
-    },
+            pos = pos | 0;
+            if (pos < 0 || pos >= this.length) return '';
+            return this[pos];
+        },
+        charCodeAt(pos) {
+            if (typeof this !== 'string') {
+                if (this instanceof String) return (this as any).value.charAt(pos);
+                else throw new Error('This function may be used only with primitive or object strings.');
+            }
 
-    substring(start, end) {
-        if (typeof this !== 'string') {
-            if (this instanceof String) return (this as any).value.substring(start, end);
-            else throw new Error('This function may be used only with primitive or object strings.');
+            pos = pos | 0;
+            if (pos < 0 || pos >= this.length) return 0 / 0;
+            return internals.char(this[pos]);
+        },
+
+        startsWith(term, pos) {
+            if (typeof this !== 'string') {
+                if (this instanceof String) return (this as any).value.startsWith(term, pos);
+                else throw new Error('This function may be used only with primitive or object strings.');
+            }
+            pos = pos! | 0;
+            term = term + "";
+
+            if (pos < 0 || this.length < term.length + pos) return false;
+
+            for (let i = 0; i < term.length; i++) {
+                if (this[i + pos] !== term[i]) return false;
+            }
+
+            return true;
+        },
+        endsWith(term, pos) {
+            if (typeof this !== 'string') {
+                if (this instanceof String) return (this as any).value.endsWith(term, pos);
+                else throw new Error('This function may be used only with primitive or object strings.');
+            }
+            pos = (pos ?? this.length) | 0;
+            term = term + "";
+
+            const start = pos - term.length;
+
+            if (start < 0 || this.length < term.length + start) return false;
+
+            for (let i = 0; i < term.length; i++) {
+                if (this[i + start] !== term[i]) return false;
+            }
+
+            return true;
+        },
+
+        indexOf(term: any, start) {
+            if (typeof this !== 'string') {
+                if (this instanceof String) return (this as any).value.indexOf(term, start);
+                else throw new Error('This function may be used only with primitive or object strings.');
+            }
+
+            if (typeof term[env.global.Symbol.search] !== 'function') term = RegExp.escape(term);
+
+            return term[env.global.Symbol.search](this, false, start);
+        },
+        lastIndexOf(term: any, start) {
+            if (typeof this !== 'string') {
+                if (this instanceof String) return (this as any).value.indexOf(term, start);
+                else throw new Error('This function may be used only with primitive or object strings.');
+            }
+
+            if (typeof term[env.global.Symbol.search] !== 'function') term = RegExp.escape(term);
+
+            return term[env.global.Symbol.search](this, true, start);
+        },
+        includes(term, start) {
+            return this.indexOf(term, start) >= 0;
+        },
+
+        replace(pattern: any, val) {
+            if (typeof this !== 'string') {
+                if (this instanceof String) return (this as any).value.replace(pattern, val);
+                else throw new Error('This function may be used only with primitive or object strings.');
+            }
+
+            if (typeof pattern[env.global.Symbol.replace] !== 'function') pattern = RegExp.escape(pattern);
+
+            return pattern[env.global.Symbol.replace](this, val);
+        },
+        replaceAll(pattern: any, val) {
+            if (typeof this !== 'string') {
+                if (this instanceof String) return (this as any).value.replace(pattern, val);
+                else throw new Error('This function may be used only with primitive or object strings.');
+            }
+
+            if (typeof pattern[env.global.Symbol.replace] !== 'function') pattern = RegExp.escape(pattern, "g");
+            if (pattern instanceof RegExp && !pattern.global) pattern = new pattern.constructor(pattern.source, pattern.flags + "g");
+
+            return pattern[env.global.Symbol.replace](this, val);
+        },
+
+        match(pattern: any) {
+            if (typeof this !== 'string') {
+                if (this instanceof String) return (this as any).value.match(pattern);
+                else throw new Error('This function may be used only with primitive or object strings.');
+            }
+
+            if (typeof pattern[env.global.Symbol.match] !== 'function') pattern = RegExp.escape(pattern);
+
+            return pattern[env.global.Symbol.match](this);
+        },
+        matchAll(pattern: any) {
+            if (typeof this !== 'string') {
+                if (this instanceof String) return (this as any).value.matchAll(pattern);
+                else throw new Error('This function may be used only with primitive or object strings.');
+            }
+
+            if (typeof pattern[env.global.Symbol.match] !== 'function') pattern = RegExp.escape(pattern, "g");
+            if (pattern instanceof RegExp && !pattern.global) pattern = new pattern.constructor(pattern.source, pattern.flags + "g");
+
+            return pattern[env.global.Symbol.match](this);
+        },
+
+        split(pattern: any, lim, sensible) {
+            if (typeof this !== 'string') {
+                if (this instanceof String) return (this as any).value.split(pattern, lim, sensible);
+                else throw new Error('This function may be used only with primitive or object strings.');
+            }
+
+            if (typeof pattern[env.global.Symbol.split] !== 'function') pattern = RegExp.escape(pattern, "g");
+
+            return pattern[env.global.Symbol.split](this, lim, sensible);
+        },
+        slice(start, end) {
+            if (typeof this !== 'string') {
+                if (this instanceof String) return (this as any).value.slice(start, end);
+                else throw new Error('This function may be used only with primitive or object strings.');
+            }
+
+            start = wrapI(this.length, start ?? 0 | 0);
+            end = wrapI(this.length, end ?? this.length | 0);
+
+            if (start > end) return '';
+
+            return this.substring(start, end);
+        },
+
+        concat(...args) {
+            if (typeof this !== 'string') {
+                if (this instanceof String) return (this as any).value.concat(...args);
+                else throw new Error('This function may be used only with primitive or object strings.');
+            }
+
+            var res = this;
+            for (var arg of args) res += arg;
+            return res;
+        },
+
+        trim() {
+            return this
+                .replace(/^\s+/g, '')
+                .replace(/\s+$/g, '');
         }
-        start = start ?? 0 | 0;
-        end = (end ?? this.length) | 0;
-        return internals.substring(this, start, end);
-    },
-    substr(start, length) {
-        start = start ?? 0 | 0;
+    });
 
-        if (start >= this.length) start = this.length - 1;
-        if (start < 0) start = 0;
+    setProps(String, {
+        fromCharCode(val) {
+            return internals.stringFromChars([val | 0]);
+        },
+    })
 
-        length = (length ?? this.length - start) | 0;
-        return this.substring(start, length + start);
-    },
+    env.global.Object.defineProperty(String.prototype, 'length', {
+        get() {
+            if (typeof this !== 'string') {
+                if (this instanceof String) return (this as any).value.length;
+                else throw new Error('This function may be used only with primitive or object strings.');
+            }
 
-    toLowerCase() {
-        return internals.toLower(this + '');
-    },
-    toUpperCase() {
-        return internals.toUpper(this + '');
-    },
-
-    charAt(pos) {
-        if (typeof this !== 'string') {
-            if (this instanceof String) return (this as any).value.charAt(pos);
-            else throw new Error('This function may be used only with primitive or object strings.');
-        }
-
-        pos = pos | 0;
-        if (pos < 0 || pos >= this.length) return '';
-        return this[pos];
-    },
-    charCodeAt(pos) {
-        var res = this.charAt(pos);
-        if (res === '') return NaN;
-        else return internals.toCharCode(res);
-    },
-
-    startsWith(term, pos) {
-        if (typeof this !== 'string') {
-            if (this instanceof String) return (this as any).value.startsWith(term, pos);
-            else throw new Error('This function may be used only with primitive or object strings.');
-        }
-        pos = pos! | 0;
-        return internals.startsWith(this, term + '', pos);
-    },
-    endsWith(term, pos) {
-        if (typeof this !== 'string') {
-            if (this instanceof String) return (this as any).value.endsWith(term, pos);
-            else throw new Error('This function may be used only with primitive or object strings.');
-        }
-        pos = (pos ?? this.length) | 0;
-        return internals.endsWith(this, term + '', pos);
-    },
-
-    indexOf(term: any, start) {
-        if (typeof this !== 'string') {
-            if (this instanceof String) return (this as any).value.indexOf(term, start);
-            else throw new Error('This function may be used only with primitive or object strings.');
-        }
-
-        if (typeof term[Symbol.search] !== 'function') term = RegExp.escape(term);
-
-        return term[Symbol.search](this, false, start);
-    },
-    lastIndexOf(term: any, start) {
-        if (typeof this !== 'string') {
-            if (this instanceof String) return (this as any).value.indexOf(term, start);
-            else throw new Error('This function may be used only with primitive or object strings.');
-        }
-
-        if (typeof term[Symbol.search] !== 'function') term = RegExp.escape(term);
-
-        return term[Symbol.search](this, true, start);
-    },
-    includes(term, start) {
-        return this.indexOf(term, start) >= 0;
-    },
-
-    replace(pattern: any, val) {
-        if (typeof this !== 'string') {
-            if (this instanceof String) return (this as any).value.replace(pattern, val);
-            else throw new Error('This function may be used only with primitive or object strings.');
-        }
-
-        if (typeof pattern[Symbol.replace] !== 'function') pattern = RegExp.escape(pattern);
-
-        return pattern[Symbol.replace](this, val);
-    },
-    replaceAll(pattern: any, val) {
-        if (typeof this !== 'string') {
-            if (this instanceof String) return (this as any).value.replace(pattern, val);
-            else throw new Error('This function may be used only with primitive or object strings.');
-        }
-
-        if (typeof pattern[Symbol.replace] !== 'function') pattern = RegExp.escape(pattern, "g");
-        if (pattern instanceof RegExp && !pattern.global) pattern = new pattern.constructor(pattern.source, pattern.flags + "g");
-
-        return pattern[Symbol.replace](this, val);
-    },
-
-    match(pattern: any) {
-        if (typeof this !== 'string') {
-            if (this instanceof String) return (this as any).value.match(pattern);
-            else throw new Error('This function may be used only with primitive or object strings.');
-        }
-
-        if (typeof pattern[Symbol.match] !== 'function') pattern = RegExp.escape(pattern);
-
-        return pattern[Symbol.match](this);
-    },
-    matchAll(pattern: any) {
-        if (typeof this !== 'string') {
-            if (this instanceof String) return (this as any).value.matchAll(pattern);
-            else throw new Error('This function may be used only with primitive or object strings.');
-        }
-
-        if (typeof pattern[Symbol.match] !== 'function') pattern = RegExp.escape(pattern, "g");
-        if (pattern instanceof RegExp && !pattern.global) pattern = new pattern.constructor(pattern.source, pattern.flags + "g");
-
-        return pattern[Symbol.match](this);
-    },
-
-    split(pattern: any, lim, sensible) {
-        if (typeof this !== 'string') {
-            if (this instanceof String) return (this as any).value.split(pattern, lim, sensible);
-            else throw new Error('This function may be used only with primitive or object strings.');
-        }
-
-        if (typeof pattern[Symbol.split] !== 'function') pattern = RegExp.escape(pattern, "g");
-
-        return pattern[Symbol.split](this, lim, sensible);
-    },
-    slice(start, end) {
-        if (typeof this !== 'string') {
-            if (this instanceof String) return (this as any).value.slice(start, end);
-            else throw new Error('This function may be used only with primitive or object strings.');
-        }
-
-        start = wrapI(this.length, start ?? 0 | 0);
-        end = wrapI(this.length, end ?? this.length | 0);
-
-        if (start > end) return '';
-
-        return this.substring(start, end);
-    },
-
-    concat(...args) {
-        if (typeof this !== 'string') {
-            if (this instanceof String) return (this as any).value.concat(...args);
-            else throw new Error('This function may be used only with primitive or object strings.');
-        }
-
-        var res = this;
-        for (var arg of args) res += arg;
-        return res;
-    },
-
-    trim() {
-        return this
-            .replace(/^\s+/g, '')
-            .replace(/\s+$/g, '');
-    }
-});
-
-setProps(String, {
-    fromCharCode(val) {
-        return internals.fromCharCode(val | 0);
-    },
-})
-
-Object.defineProperty(String.prototype, 'length', {
-    get() {
-        if (typeof this !== 'string') {
-            if (this instanceof String) return (this as any).value.length;
-            else throw new Error('This function may be used only with primitive or object strings.');
-        }
-
-        return internals.strlen(this);
-    },
-    configurable: true,
-    enumerable: false,
-});
+            return internals.strlen(this);
+        },
+        configurable: true,
+        enumerable: false,
+    });
+});

lib/values/symbol.ts

@@ -1,38 +1,36 @@
-interface Symbol {
-    valueOf(): symbol;
-    constructor: SymbolConstructor;
-}
-interface SymbolConstructor {
-    (val?: any): symbol;
-    prototype: Symbol;
-    for(key: string): symbol;
-    keyFor(sym: symbol): string;
-    readonly typeName: unique symbol;
-}
+define("values/symbol", () => {
+    const symbols: Record<string, symbol> = { };
 
-declare var Symbol: SymbolConstructor;
+    var Symbol = env.global.Symbol = function(this: any, val?: string) {
+        if (this !== undefined && this !== null) throw new TypeError("Symbol may not be called with 'new'.");
+        if (typeof val !== 'string' && val !== undefined) throw new TypeError('val must be a string or undefined.');
+        return internals.symbol(val);
+    } as SymbolConstructor;
 
-gt.Symbol = function(this: any, val?: string) {
-    if (this !== undefined && this !== null) throw new TypeError("Symbol may not be called with 'new'.");
-    if (typeof val !== 'string' && val !== undefined) throw new TypeError('val must be a string or undefined.');
-    return internals.symbol(val, true);
-} as SymbolConstructor;
+    env.setProto('symbol', Symbol.prototype);
+    setConstr(Symbol.prototype, Symbol);
 
-Symbol.prototype = internals.symbolProto;
-setConstr(Symbol.prototype, Symbol);
-(Symbol as any).typeName = Symbol("Symbol.name");
+    setProps(Symbol, {
+        for(key) {
+            if (typeof key !== 'string' && key !== undefined) throw new TypeError('key must be a string or undefined.');
+            if (key in symbols) return symbols[key];
+            else return symbols[key] = internals.symbol(key);
+        },
+        keyFor(sym) {
+            if (typeof sym !== 'symbol') throw new TypeError('sym must be a symbol.');
+            return internals.symbolToString(sym);
+        },
 
-setProps(Symbol, {
-    for(key) {
-        if (typeof key !== 'string' && key !== undefined) throw new TypeError('key must be a string or undefined.');
-        return internals.symbol(key, false);
-    },
-    keyFor(sym) {
-        if (typeof sym !== 'symbol') throw new TypeError('sym must be a symbol.');
-        return internals.symStr(sym);
-    },
-    typeName: Symbol('Symbol.name') as any,
-});
+        typeName: Symbol("Symbol.name") as any,
+        replace: Symbol('Symbol.replace') as any,
+        match: Symbol('Symbol.match') as any,
+        matchAll: Symbol('Symbol.matchAll') as any,
+        split: Symbol('Symbol.split') as any,
+        search: Symbol('Symbol.search') as any,
+        iterator: Symbol('Symbol.iterator') as any,
+        asyncIterator: Symbol('Symbol.asyncIterator') as any,
+    });
 
-Object.defineProperty(Object.prototype, Symbol.typeName, { value: 'Object' });
-Object.defineProperty(gt, Symbol.typeName, { value: 'Window' });
+    internals.defineField(env.global.Object.prototype, Symbol.typeName, 'Object', false, false, false);
+    internals.defineField(env.global, Symbol.typeName, 'Window', false, false, false);
+});

package-lock.json

@@ -0,0 +1,6 @@
+{
+  "name": "java-jscript",
+  "lockfileVersion": 3,
+  "requires": true,
+  "packages": {}
+}

package.json

@@ -0,0 +1 @@
+{}

src/me/topchetoeu/jscript/Main.java

@@ -1,29 +1,54 @@
 package me.topchetoeu.jscript;
 
 import java.io.BufferedReader;
-import java.io.File;
 import java.io.IOException;
+import java.io.InputStream;
 import java.io.InputStreamReader;
 import java.nio.file.Files;
 import java.nio.file.Path;
-import java.util.Map;
 
+import me.topchetoeu.jscript.engine.MessageContext;
+import me.topchetoeu.jscript.engine.Context;
 import me.topchetoeu.jscript.engine.Engine;
+import me.topchetoeu.jscript.engine.FunctionContext;
 import me.topchetoeu.jscript.engine.values.Values;
 import me.topchetoeu.jscript.events.Observer;
 import me.topchetoeu.jscript.exceptions.EngineException;
 import me.topchetoeu.jscript.exceptions.SyntaxException;
-import me.topchetoeu.jscript.polyfills.PolyfillEngine;
-import me.topchetoeu.jscript.polyfills.TypescriptEngine;
+import me.topchetoeu.jscript.interop.NativeTypeRegister;
+import me.topchetoeu.jscript.polyfills.Internals;
 
 public class Main {
     static Thread task;
     static Engine engine;
+    static FunctionContext env;
+
+    public static String streamToString(InputStream in) {
+        try {
+            StringBuilder out = new StringBuilder();
+            BufferedReader br = new BufferedReader(new InputStreamReader(in));
+
+            for(var line = br.readLine(); line != null; line = br.readLine()) {
+                out.append(line).append('\n');
+            }
+
+            br.close();
+            return out.toString();
+        }
+        catch (IOException e) {
+            return null;
+        }
+    }
+    public static String resourceToString(String name) {
+        var str = Main.class.getResourceAsStream("/me/topchetoeu/jscript/" + name);
+        if (str == null) return null;
+        return streamToString(str);
+    }
 
     private static Observer<Object> valuePrinter = new Observer<Object>() {
         public void next(Object data) {
             try {
-                Values.printValue(engine.context(), data);
+                Values.printValue(null, data);
             }
             catch (InterruptedException e) { }
             System.out.println();
@@ -31,20 +56,24 @@ public class Main {
 
         public void error(RuntimeException err) {
             try {
-                if (err instanceof EngineException) {
-                    System.out.println("Uncaught " + ((EngineException)err).toString(engine.context()));
+                try {
+                    if (err instanceof EngineException) {
+                        System.out.println("Uncaught " + ((EngineException)err).toString(new Context(null, new MessageContext(engine))));
+                    }
+                    else if (err instanceof SyntaxException) {
+                        System.out.println("Syntax error:" + ((SyntaxException)err).msg);
+                    }
+                    else if (err.getCause() instanceof InterruptedException) return;
+                    else {
+                        System.out.println("Internal error ocurred:");
+                        err.printStackTrace();
+                    }
                 }
-                else if (err instanceof SyntaxException) {
-                    System.out.println("Syntax error:" + ((SyntaxException)err).msg);
+                catch (EngineException ex) {
+                    System.out.println("Uncaught ");
+                    Values.printValue(null, ((EngineException)err).value);
+                    System.out.println();
                 }
-                else if (err.getCause() instanceof InterruptedException) return;
-                else {
-                    System.out.println("Internal error ocurred:");
-                    err.printStackTrace();
-                }
-            }
-            catch (EngineException ex) {
-                System.out.println("Uncaught [error while converting to string]");
             }
             catch (InterruptedException ex) {
                 return;
@@ -53,19 +82,21 @@ public class Main {
     };
 
     public static void main(String args[]) {
+        System.out.println(String.format("Running %s v%s by %s", Metadata.NAME, Metadata.VERSION, Metadata.AUTHOR));
         var in = new BufferedReader(new InputStreamReader(System.in));
-        engine = new TypescriptEngine(new File("."));
-        var scope = engine.global().globalChild();
+        engine = new Engine();
+        env = new FunctionContext(null, null, null);
+        var builderEnv = new FunctionContext(null, new NativeTypeRegister(), null);
         var exited = new boolean[1];
 
-        scope.define("exit", ctx -> {
+        env.global.define("exit", ctx -> {
             exited[0] = true;
             task.interrupt();
             throw new InterruptedException();
         });
-        scope.define("go", ctx -> {
+        env.global.define("go", ctx -> {
             try {
-                var func = engine.compile(scope, "do.js", new String(Files.readAllBytes(Path.of("do.js"))));
+                var func = ctx.compile("do.js", new String(Files.readAllBytes(Path.of("do.js"))));
                 return func.call(ctx);
             }
             catch (IOException e) {
@@ -73,6 +104,8 @@ public class Main {
             }
         });
 
+        engine.pushMsg(false, new Context(builderEnv, new MessageContext(engine)), "core.js", resourceToString("js/core.js"), null, env, new Internals()).toObservable().on(valuePrinter);
+
         task = engine.start();
         var reader = new Thread(() -> {
             try {
@@ -81,11 +114,11 @@ public class Main {
                         var raw = in.readLine();
 
                         if (raw == null) break;
-                        engine.pushMsg(false, scope, Map.of(), "<stdio>", raw, null).toObservable().once(valuePrinter);
+                        engine.pushMsg(false, new Context(env, new MessageContext(engine)), "<stdio>", raw, null).toObservable().once(valuePrinter);
                     }
                     catch (EngineException e) {
                         try {
-                            System.out.println("Uncaught " + e.toString(engine.context()));
+                            System.out.println("Uncaught " + e.toString(null));
                         }
                         catch (EngineException ex) {
                             System.out.println("Uncaught [error while converting to string]");

src/me/topchetoeu/jscript/Metadata.java

@@ -0,0 +1,7 @@
+package me.topchetoeu.jscript;
+
+public class Metadata {
+    public static final String VERSION = "${VERSION}";
+    public static final String AUTHOR = "${AUTHOR}";
+    public static final String NAME = "${NAME}";
+}

src/me/topchetoeu/jscript/compilation/CompoundStatement.java

@@ -70,7 +70,7 @@ public class CompoundStatement extends Statement {
         else return new CompoundStatement(loc(), res.toArray(Statement[]::new));
     }
 
-    public CompoundStatement(Location loc, Statement... statements) {
+    public CompoundStatement(Location loc, Statement ...statements) {
         super(loc);
         this.statements = statements;
     }

src/me/topchetoeu/jscript/compilation/Instruction.java

@@ -129,7 +129,7 @@ public class Instruction {
         return params[i].equals(arg);
     }
 
-    private Instruction(Location location, Type type, Object... params) {
+    private Instruction(Location location, Type type, Object ...params) {
         this.location = location;
         this.type = type;
         this.params = params;

src/me/topchetoeu/jscript/compilation/control/SwitchStatement.java

@@ -66,9 +66,6 @@ public class SwitchStatement extends Statement {
             if (instr.type == Type.NOP && instr.is(0, "break") && instr.get(1) == null) {
                 target.set(i, Instruction.jmp(target.size() - i).locate(instr.location));
             }
-            if (instr.type == Type.NOP && instr.is(0, "try_break") && instr.get(1) == null) {
-                target.set(i, Instruction.signal("jmp_" + (target.size() - (Integer)instr.get(2))).locate(instr.location));
-            }
         }
         for (var el : caseMap.entrySet()) {
             var loc = target.get(el.getKey()).location;

src/me/topchetoeu/jscript/compilation/control/TryStatement.java

@@ -49,18 +49,6 @@ public class TryStatement extends Statement {
             finN = target.size() - tmp;
         }
 
-        // for (int i = start; i < target.size(); i++) {
-        //     if (target.get(i).type == Type.NOP) {
-        //         var instr = target.get(i);
-        //         if (instr.is(0, "break")) {
-        //             target.set(i, Instruction.nop("try_break", instr.get(1), target.size()).locate(instr.location));
-        //         }
-        //         else if (instr.is(0, "cont")) {
-        //             target.set(i, Instruction.nop("try_cont", instr.get(1), target.size()).locate(instr.location));
-        //         }
-        //     }
-        // }
-
         target.set(start - 1, Instruction.tryInstr(tryN, catchN, finN).locate(loc()));
     }
 

src/me/topchetoeu/jscript/compilation/control/WhileStatement.java

@@ -81,14 +81,6 @@ public class WhileStatement extends Statement {
                 target.set(i, Instruction.jmp(breakPoint - i));
                 target.get(i).location = instr.location;
             }
-            if (instr.type == Type.NOP && instr.is(0, "try_cont") && (instr.get(1) == null || instr.is(1, label))) {
-                target.set(i, Instruction.signal("jmp_" + (continuePoint - (Integer)instr.get(2))));
-                target.get(i).location = instr.location;
-            }
-            if (instr.type == Type.NOP && instr.is(0, "try_break") && (instr.get(1) == null || instr.is(1, label))) {
-                target.set(i, Instruction.signal("jmp_" + (breakPoint - (Integer)instr.get(2))));
-                target.get(i).location = instr.location;
-            }
         }
     }
 

src/me/topchetoeu/jscript/compilation/values/CallStatement.java

@@ -31,12 +31,12 @@ public class CallStatement extends Statement {
         target.add(Instruction.call(args.length).locate(loc()).setDebug(true));
     }
 
-    public CallStatement(Location loc, Statement func, Statement... args) {
+    public CallStatement(Location loc, Statement func, Statement ...args) {
         super(loc);
         this.func = func;
         this.args = args;
     }
-    public CallStatement(Location loc, Statement obj, Object key, Statement... args) {
+    public CallStatement(Location loc, Statement obj, Object key, Statement ...args) {
         super(loc);
         this.func = new IndexStatement(loc, obj, new ConstantStatement(loc, key));
         this.args = args;

src/me/topchetoeu/jscript/compilation/values/FunctionStatement.java

@@ -28,10 +28,10 @@ public class FunctionStatement extends Statement {
     public static void checkBreakAndCont(List<Instruction> target, int start) {
         for (int i = start; i < target.size(); i++) {
             if (target.get(i).type == Type.NOP) {
-                if (target.get(i).is(0, "break") || target.get(i).is(0, "try_break")) {
+                if (target.get(i).is(0, "break") ) {
                     throw new SyntaxException(target.get(i).location, "Break was placed outside a loop.");
                 }
-                if (target.get(i).is(0, "cont") || target.get(i).is(0, "try_cont")) {
+                if (target.get(i).is(0, "cont")) {
                     throw new SyntaxException(target.get(i).location, "Continue was placed outside a loop.");
                 }
             }

src/me/topchetoeu/jscript/compilation/values/NewStatement.java

@@ -24,7 +24,7 @@ public class NewStatement extends Statement {
         target.add(Instruction.callNew(args.length).locate(loc()).setDebug(true));
     }
 
-    public NewStatement(Location loc, Statement func, Statement... args) {
+    public NewStatement(Location loc, Statement func, Statement ...args) {
         super(loc);
         this.func = func;
         this.args = args;

src/me/topchetoeu/jscript/compilation/values/OperationStatement.java

@@ -6,7 +6,6 @@ import me.topchetoeu.jscript.Location;
 import me.topchetoeu.jscript.compilation.Instruction;
 import me.topchetoeu.jscript.compilation.Statement;
 import me.topchetoeu.jscript.compilation.control.ThrowStatement;
-import me.topchetoeu.jscript.engine.CallContext;
 import me.topchetoeu.jscript.engine.Operation;
 import me.topchetoeu.jscript.engine.scope.ScopeRecord;
 import me.topchetoeu.jscript.engine.values.Values;
@@ -52,40 +51,7 @@ public class OperationStatement extends Statement {
             }
 
             try {
-                var ctx = new CallContext(null);
-    
-                switch (operation) {
-                    case ADD: return new ConstantStatement(loc(), Values.add(ctx, vals[0], vals[1]));
-                    case SUBTRACT: return new ConstantStatement(loc(), Values.subtract(ctx, vals[0], vals[1]));
-                    case DIVIDE: return new ConstantStatement(loc(), Values.divide(ctx, vals[0], vals[1]));
-                    case MULTIPLY: return new ConstantStatement(loc(), Values.multiply(ctx, vals[0], vals[1]));
-                    case MODULO: return new ConstantStatement(loc(), Values.modulo(ctx, vals[0], vals[1]));
-
-                    case AND: return new ConstantStatement(loc(), Values.and(ctx, vals[0], vals[1]));
-                    case OR: return new ConstantStatement(loc(), Values.or(ctx, vals[0], vals[1]));
-                    case XOR: return new ConstantStatement(loc(), Values.xor(ctx, vals[0], vals[1]));
-
-                    case EQUALS: return new ConstantStatement(loc(), Values.strictEquals(vals[0], vals[1]));
-                    case NOT_EQUALS: return new ConstantStatement(loc(), !Values.strictEquals(vals[0], vals[1]));
-                    case LOOSE_EQUALS: return new ConstantStatement(loc(), Values.looseEqual(ctx, vals[0], vals[1]));
-                    case LOOSE_NOT_EQUALS: return new ConstantStatement(loc(), !Values.looseEqual(ctx, vals[0], vals[1]));
-
-                    case GREATER: return new ConstantStatement(loc(), Values.compare(ctx, vals[0], vals[1]) < 0);
-                    case GREATER_EQUALS: return new ConstantStatement(loc(), Values.compare(ctx, vals[0], vals[1]) <= 0);
-                    case LESS: return new ConstantStatement(loc(), Values.compare(ctx, vals[0], vals[1]) > 0);
-                    case LESS_EQUALS: return new ConstantStatement(loc(), Values.compare(ctx, vals[0], vals[1]) >= 0);
-
-                    case INVERSE: return new ConstantStatement(loc(), Values.bitwiseNot(ctx, vals[0]));
-                    case NOT: return new ConstantStatement(loc(), Values.not(vals[0]));
-                    case POS: return new ConstantStatement(loc(), Values.toNumber(ctx, vals[0]));
-                    case NEG: return new ConstantStatement(loc(), Values.negative(ctx, vals[0]));
-
-                    case SHIFT_LEFT: return new ConstantStatement(loc(), Values.shiftLeft(ctx, vals[0], vals[1]));
-                    case SHIFT_RIGHT: return new ConstantStatement(loc(), Values.shiftRight(ctx, vals[0], vals[1]));
-                    case USHIFT_RIGHT: return new ConstantStatement(loc(), Values.unsignedShiftRight(ctx, vals[0], vals[1]));
-
-                    default: break;
-                }
+                return new ConstantStatement(loc(), Values.operation(null, operation, vals));
             }
             catch (EngineException e) {
                 return new ThrowStatement(loc(), new ConstantStatement(loc(), e.value));
@@ -97,7 +63,7 @@ public class OperationStatement extends Statement {
 
     }
 
-    public OperationStatement(Location loc, Operation operation, Statement... args) {
+    public OperationStatement(Location loc, Operation operation, Statement ...args) {
         super(loc);
         this.operation = operation;
         this.args = args;

src/me/topchetoeu/jscript/engine/BreakpointData.java

@@ -1,13 +0,0 @@
-package me.topchetoeu.jscript.engine;
-
-import me.topchetoeu.jscript.Location;
-
-public class BreakpointData {
-    public final Location loc;
-    public final CallContext ctx;
-
-    public BreakpointData(Location loc, CallContext ctx) {
-        this.loc = loc;
-        this.ctx = ctx;
-    }
-}

src/me/topchetoeu/jscript/engine/CallContext.java

@@ -1,60 +0,0 @@
-package me.topchetoeu.jscript.engine;
-
-import java.util.Collections;
-import java.util.Hashtable;
-import java.util.Map;
-
-public class CallContext {
-    public static final class DataKey<T> {}
-
-    public final Engine engine;
-    private final Map<DataKey<?>, Object> data = new Hashtable<>();
-
-    public Engine engine() { return engine; }
-    public Map<DataKey<?>, Object> data() { return Collections.unmodifiableMap(data); }
-
-    public CallContext copy() {
-        return new CallContext(engine).mergeData(data);
-    }
-    public CallContext mergeData(Map<DataKey<?>, Object> objs) {
-        data.putAll(objs);
-        return this;
-    }
-    public <T> CallContext setData(DataKey<T> key, T val) {
-        if (val == null) data.remove(key);
-        else data.put(key, val);
-        return this;
-    }
-    @SuppressWarnings("unchecked")
-    public <T> T addData(DataKey<T> key, T val) {
-        if (data.containsKey(key)) return (T)data.get(key);
-        else {
-            if (val == null) data.remove(key);
-            else data.put(key, val);
-            return val;
-        }
-    }
-    public boolean hasData(DataKey<?> key) { return data.containsKey(key); }
-    public <T> T getData(DataKey<T> key) {
-        return getData(key, null);
-    }
-    @SuppressWarnings("unchecked")
-    public <T> T getData(DataKey<T> key, T defaultVal) {
-        if (!hasData(key)) return defaultVal;
-        else return (T)data.get(key);
-    }
-
-    public CallContext changeData(DataKey<Integer> key, int n, int start) {
-        return setData(key, getData(key, start) + n);
-    }
-    public CallContext changeData(DataKey<Integer> key, int n) {
-        return changeData(key, n, 0);
-    }
-    public CallContext changeData(DataKey<Integer> key) {
-        return changeData(key, 1, 0);
-    }
-
-    public CallContext(Engine engine) {
-        this.engine = engine;
-    }
-}

src/me/topchetoeu/jscript/engine/Context.java

@@ -0,0 +1,20 @@
+package me.topchetoeu.jscript.engine;
+
+import me.topchetoeu.jscript.engine.values.FunctionValue;
+import me.topchetoeu.jscript.engine.values.Values;
+import me.topchetoeu.jscript.parsing.Parsing;
+
+public class Context {
+    public final FunctionContext function;
+    public final MessageContext message;
+
+    public FunctionValue compile(String filename, String raw) throws InterruptedException {
+        var res = Values.toString(this, function.compile.call(this, null, raw, filename));
+        return Parsing.compile(function, filename, res);
+    }
+
+    public Context(FunctionContext funcCtx, MessageContext msgCtx) {
+        this.function = funcCtx;
+        this.message = msgCtx;
+    }
+}

src/me/topchetoeu/jscript/engine/DebugCommand.java

@@ -1,8 +0,0 @@
-package me.topchetoeu.jscript.engine;
-
-public enum DebugCommand {
-    NORMAL,
-    STEP_OVER,
-    STEP_OUT,
-    STEP_INTO,
-}

src/me/topchetoeu/jscript/engine/Engine.java

@@ -1,116 +1,58 @@
 package me.topchetoeu.jscript.engine;
 
-import java.util.HashMap;
-import java.util.Map;
 import java.util.concurrent.LinkedBlockingDeque;
 
-import me.topchetoeu.jscript.engine.CallContext.DataKey;
-import me.topchetoeu.jscript.engine.debug.DebugState;
-import me.topchetoeu.jscript.engine.modules.ModuleManager;
-import me.topchetoeu.jscript.engine.scope.GlobalScope;
 import me.topchetoeu.jscript.engine.values.FunctionValue;
-import me.topchetoeu.jscript.engine.values.ObjectValue;
-import me.topchetoeu.jscript.engine.values.ObjectValue.PlaceholderProto;
 import me.topchetoeu.jscript.events.Awaitable;
 import me.topchetoeu.jscript.events.DataNotifier;
 import me.topchetoeu.jscript.exceptions.EngineException;
-import me.topchetoeu.jscript.interop.NativeTypeRegister;
-import me.topchetoeu.jscript.parsing.Parsing;
 
 public class Engine {
-    private static class RawFunction {
-        public final GlobalScope scope;
+    private class UncompiledFunction extends FunctionValue {
         public final String filename;
         public final String raw;
+        public final FunctionContext ctx;
 
-        public RawFunction(GlobalScope scope, String filename, String raw) {
-            this.scope = scope;
+        @Override
+        public Object call(Context ctx, Object thisArg, Object ...args) throws InterruptedException {
+            ctx = new Context(this.ctx, ctx.message);
+            return ctx.compile(filename, raw).call(ctx, thisArg, args);
+        }
+
+        public UncompiledFunction(FunctionContext ctx, String filename, String raw) {
+            super(filename, 0);
             this.filename = filename;
             this.raw = raw;
+            this.ctx = ctx; 
         }
     }
 
     private static class Task {
-        public final Object func;
+        public final FunctionValue func;
         public final Object thisArg;
         public final Object[] args;
-        public final Map<DataKey<?>, Object> data;
         public final DataNotifier<Object> notifier = new DataNotifier<>();
+        public final MessageContext ctx;
 
-        public Task(Object func, Map<DataKey<?>, Object> data, Object thisArg, Object[] args) {
+        public Task(MessageContext ctx, FunctionValue func, Object thisArg, Object[] args) {
+            this.ctx = ctx;
             this.func = func;
-            this.data = data;
             this.thisArg = thisArg;
             this.args = args;
         }
     }
 
-    public static final DataKey<DebugState> DEBUG_STATE_KEY = new DataKey<>();
     private static int nextId = 0;
 
-    private Map<DataKey<?>, Object> callCtxVals = new HashMap<>();
-    private GlobalScope global = new GlobalScope();
-    private ObjectValue arrayProto = new ObjectValue();
-    private ObjectValue boolProto = new ObjectValue();
-    private ObjectValue funcProto = new ObjectValue();
-    private ObjectValue numProto = new ObjectValue();
-    private ObjectValue objProto = new ObjectValue(PlaceholderProto.NONE);
-    private ObjectValue strProto = new ObjectValue();
-    private ObjectValue symProto = new ObjectValue();
-    private ObjectValue errProto = new ObjectValue();
-    private ObjectValue syntaxErrProto = new ObjectValue(PlaceholderProto.ERROR);
-    private ObjectValue typeErrProto = new ObjectValue(PlaceholderProto.ERROR);
-    private ObjectValue rangeErrProto = new ObjectValue(PlaceholderProto.ERROR);
-    private NativeTypeRegister typeRegister;
     private Thread thread;
-
     private LinkedBlockingDeque<Task> macroTasks = new LinkedBlockingDeque<>();
     private LinkedBlockingDeque<Task> microTasks = new LinkedBlockingDeque<>();
 
     public final int id = ++nextId;
-    public final DebugState debugState = new DebugState();
-
-    public ObjectValue arrayProto() { return arrayProto; }
-    public ObjectValue booleanProto() { return boolProto; }
-    public ObjectValue functionProto() { return funcProto; }
-    public ObjectValue numberProto() { return numProto; }
-    public ObjectValue objectProto() { return objProto; }
-    public ObjectValue stringProto() { return strProto; }
-    public ObjectValue symbolProto() { return symProto; }
-    public ObjectValue errorProto() { return errProto; }
-    public ObjectValue syntaxErrorProto() { return syntaxErrProto; }
-    public ObjectValue typeErrorProto() { return typeErrProto; }
-    public ObjectValue rangeErrorProto() { return rangeErrProto; }
-
-    public GlobalScope global() { return global; }
-    public NativeTypeRegister typeRegister() { return typeRegister; }
-
-    public void copyFrom(Engine other) {
-        global = other.global;
-        typeRegister = other.typeRegister;
-        arrayProto = other.arrayProto;
-        boolProto = other.boolProto;
-        funcProto = other.funcProto;
-        numProto = other.numProto;
-        objProto = other.objProto;
-        strProto = other.strProto;
-        symProto = other.symProto;
-        errProto = other.errProto;
-        syntaxErrProto = other.syntaxErrProto;
-        typeErrProto = other.typeErrProto;
-        rangeErrProto = other.rangeErrProto;
-    }
 
     private void runTask(Task task) throws InterruptedException {
         try {
-            FunctionValue func;
-            if (task.func instanceof FunctionValue) func = (FunctionValue)task.func;
-            else {
-                var raw = (RawFunction)task.func;
-                func = compile(raw.scope, raw.filename, raw.raw);
-            }
-
-            task.notifier.next(func.call(context().mergeData(task.data), task.thisArg, task.args));
+            task.notifier.next(task.func.call(new Context(null, task.ctx), task.thisArg, task.args));
         }
         catch (InterruptedException e) {
             task.notifier.error(new RuntimeException(e));
@@ -142,13 +84,6 @@ public class Engine {
         }
     }
 
-    public void exposeClass(String name, Class<?> clazz) {
-        global.define(name, true, typeRegister.getConstr(clazz));
-    }
-    public void exposeNamespace(String name, Class<?> clazz) {
-        global.define(name, true, NativeTypeRegister.makeNamespace(clazz));
-    }
-
     public Thread start() {
         if (this.thread == null) {
             this.thread = new Thread(this::run, "JavaScript Runner #" + id);
@@ -167,39 +102,17 @@ public class Engine {
         return this.thread != null;
     }
 
-    public Object makeRegex(String pattern, String flags) {
-        throw EngineException.ofError("Regular expressions not supported.");
-    }
-    public ModuleManager modules() {
-        return null;
-    }
-    public ObjectValue getPrototype(Class<?> clazz) {
-        return typeRegister.getProto(clazz);
-    }
-    public CallContext context() { return new CallContext(this).mergeData(callCtxVals); }
-
-    public Awaitable<Object> pushMsg(boolean micro, FunctionValue func, Map<DataKey<?>, Object> data, Object thisArg, Object... args) {
-        var msg = new Task(func, data, thisArg, args);
+    public Awaitable<Object> pushMsg(boolean micro, MessageContext ctx, FunctionValue func, Object thisArg, Object ...args) {
+        var msg = new Task(ctx, func, thisArg, args);
         if (micro) microTasks.addLast(msg);
         else macroTasks.addLast(msg);
         return msg.notifier;
     }
-    public Awaitable<Object> pushMsg(boolean micro, GlobalScope scope, Map<DataKey<?>, Object> data, String filename, String raw, Object thisArg, Object... args) {
-        var msg = new Task(new RawFunction(scope, filename, raw), data, thisArg, args);
-        if (micro) microTasks.addLast(msg);
-        else macroTasks.addLast(msg);
-        return msg.notifier;
+    public Awaitable<Object> pushMsg(boolean micro, Context ctx, String filename, String raw, Object thisArg, Object ...args) {
+        return pushMsg(micro, ctx.message, new UncompiledFunction(ctx.function, filename, raw), thisArg, args);
     }
 
-    public FunctionValue compile(GlobalScope scope, String filename, String raw) throws InterruptedException {
-        return Parsing.compile(scope, filename, raw);
-    }
-
-    public Engine(NativeTypeRegister register) {
-        this.typeRegister = register;
-        this.callCtxVals.put(DEBUG_STATE_KEY, debugState);
-    }
-    public Engine() {
-        this(new NativeTypeRegister());
-    }
+    // public Engine() {
+    //     this.typeRegister = new NativeTypeRegister();
+    // }
 }

src/me/topchetoeu/jscript/engine/FunctionContext.java

@@ -0,0 +1,81 @@
+package me.topchetoeu.jscript.engine;
+
+import java.util.HashMap;
+
+import me.topchetoeu.jscript.engine.scope.GlobalScope;
+import me.topchetoeu.jscript.engine.values.FunctionValue;
+import me.topchetoeu.jscript.engine.values.NativeFunction;
+import me.topchetoeu.jscript.engine.values.ObjectValue;
+import me.topchetoeu.jscript.exceptions.EngineException;
+import me.topchetoeu.jscript.interop.Native;
+import me.topchetoeu.jscript.interop.NativeGetter;
+import me.topchetoeu.jscript.interop.NativeSetter;
+
+public class FunctionContext {
+    private HashMap<String, ObjectValue> prototypes = new HashMap<>();
+    public GlobalScope global;
+    public WrappersProvider wrappersProvider;
+
+    @Native public FunctionValue compile;
+    @Native public FunctionValue regexConstructor = new NativeFunction("RegExp", (ctx, thisArg, args) -> {
+        throw EngineException.ofError("Regular expressions not supported.");
+    });
+    @Native public ObjectValue proto(String name) {
+        return prototypes.get(name);
+    }
+    @Native public void setProto(String name, ObjectValue val) {
+        prototypes.put(name, val);
+    }
+    // @Native public ObjectValue arrayPrototype = new ObjectValue();
+    // @Native public ObjectValue boolPrototype = new ObjectValue();
+    // @Native public ObjectValue functionPrototype = new ObjectValue();
+    // @Native public ObjectValue numberPrototype = new ObjectValue();
+    // @Native public ObjectValue objectPrototype = new ObjectValue(PlaceholderProto.NONE);
+    // @Native public ObjectValue stringPrototype = new ObjectValue();
+    // @Native public ObjectValue symbolPrototype = new ObjectValue();
+    // @Native public ObjectValue errorPrototype = new ObjectValue();
+    // @Native public ObjectValue syntaxErrPrototype = new ObjectValue(PlaceholderProto.ERROR);
+    // @Native public ObjectValue typeErrPrototype = new ObjectValue(PlaceholderProto.ERROR);
+    // @Native public ObjectValue rangeErrPrototype = new ObjectValue(PlaceholderProto.ERROR);
+
+    @NativeGetter("global")
+    public ObjectValue getGlobal() {
+        return global.obj;
+    }
+    @NativeSetter("global")
+    public void setGlobal(ObjectValue val) {
+        global = new GlobalScope(val);
+    }
+
+    @Native
+    public FunctionContext fork() {
+        var res = new FunctionContext(compile, wrappersProvider, global);
+        res.regexConstructor = regexConstructor;
+        res.prototypes = new HashMap<>(prototypes);
+        return res;
+    }
+
+    @Native
+    public FunctionContext child() {
+        var res = fork();
+        res.global = res.global.globalChild();
+        return res;
+    }
+
+    public FunctionContext(FunctionValue compile, WrappersProvider nativeConverter, GlobalScope global) {
+        if (compile == null) compile = new NativeFunction("compile", (ctx, thisArg, args) -> args.length == 0 ? "" : args[0]);
+        if (nativeConverter == null) nativeConverter = new WrappersProvider() {
+            public ObjectValue getConstr(Class<?> obj) {
+                throw EngineException.ofType("Java objects not passable to Javascript.");
+            }
+            public ObjectValue getProto(Class<?> obj) {
+                throw EngineException.ofType("Java objects not passable to Javascript.");
+            }
+        };
+        if (global == null) global = new GlobalScope();
+
+        this.wrappersProvider = nativeConverter;
+        this.compile = compile;
+        this.global = global;
+    }
+}

src/me/topchetoeu/jscript/engine/MessageContext.java

@@ -0,0 +1,33 @@
+package me.topchetoeu.jscript.engine;
+
+import java.util.ArrayList;
+import java.util.Collections;
+import java.util.List;
+
+import me.topchetoeu.jscript.engine.frame.CodeFrame;
+import me.topchetoeu.jscript.exceptions.EngineException;
+
+public class MessageContext {
+    public final Engine engine;
+
+    private final ArrayList<CodeFrame> frames = new ArrayList<>();
+    public int maxStackFrames = 1000;
+
+    public List<CodeFrame> frames() { return Collections.unmodifiableList(frames); }
+
+    public MessageContext pushFrame(CodeFrame frame) {
+        this.frames.add(frame);
+        if (this.frames.size() > maxStackFrames) throw EngineException.ofRange("Stack overflow!");
+        return this;
+    }
+    public boolean popFrame(CodeFrame frame) {
+        if (this.frames.size() == 0) return false;
+        if (this.frames.get(this.frames.size() - 1) != frame) return false;
+        this.frames.remove(this.frames.size() - 1);
+        return true;
+    }
+
+    public MessageContext(Engine engine) {
+        this.engine = engine;
+    }
+}

src/me/topchetoeu/jscript/engine/WrappersProvider.java

@@ -0,0 +1,8 @@
+package me.topchetoeu.jscript.engine;
+
+import me.topchetoeu.jscript.engine.values.ObjectValue;
+
+public interface WrappersProvider {
+    public ObjectValue getProto(Class<?> obj);
+    public ObjectValue getConstr(Class<?> obj);
+}

src/me/topchetoeu/jscript/engine/frame/CodeFrame.java

@@ -4,10 +4,7 @@ import java.util.ArrayList;
 import java.util.List;
 
 import me.topchetoeu.jscript.Location;
-import me.topchetoeu.jscript.engine.CallContext;
-import me.topchetoeu.jscript.engine.DebugCommand;
-import me.topchetoeu.jscript.engine.Engine;
-import me.topchetoeu.jscript.engine.CallContext.DataKey;
+import me.topchetoeu.jscript.engine.Context;
 import me.topchetoeu.jscript.engine.scope.LocalScope;
 import me.topchetoeu.jscript.engine.scope.ValueVariable;
 import me.topchetoeu.jscript.engine.values.ArrayValue;
@@ -45,11 +42,6 @@ public class CodeFrame {
         }
     }
 
-    public static final DataKey<Integer> STACK_N_KEY = new DataKey<>();
-    public static final DataKey<Integer> MAX_STACK_KEY = new DataKey<>();
-    public static final DataKey<Boolean> STOP_AT_START_KEY = new DataKey<>();
-    public static final DataKey<Boolean> STEPPING_TROUGH_KEY = new DataKey<>();
-
     public final LocalScope scope;
     public final Object thisArg;
     public final Object[] args;
@@ -60,7 +52,6 @@ public class CodeFrame {
     public int stackPtr = 0;
     public int codePtr = 0;
     public boolean jumpFlag = false;
-    private DebugCommand debugCmd = null;
     private Location prevLoc = null;
 
     public void addTry(int n, int catchN, int finallyN) {
@@ -93,30 +84,16 @@ public class CodeFrame {
 
         return res;
     }
-    public void push(Object val) {
+    public void push(Context ctx, Object val) {
         if (stack.length <= stackPtr) {
             var newStack = new Object[stack.length * 2];
             System.arraycopy(stack, 0, newStack, 0, stack.length);
             stack = newStack;
         }
-        stack[stackPtr++] = Values.normalize(val);
+        stack[stackPtr++] = Values.normalize(ctx, val);
     }
 
-    public void start(CallContext ctx) {
-        if (ctx.getData(STACK_N_KEY, 0) >= ctx.addData(MAX_STACK_KEY, 10000)) throw EngineException.ofRange("Stack overflow!");
-        ctx.changeData(STACK_N_KEY);
-
-        var debugState = ctx.getData(Engine.DEBUG_STATE_KEY);
-        if (debugState != null) debugState.pushFrame(this);
-    }
-    public void end(CallContext ctx) {
-        var debugState = ctx.getData(Engine.DEBUG_STATE_KEY);
-
-        if (debugState != null) debugState.popFrame();
-        ctx.changeData(STACK_N_KEY, -1);
-    }
-
-    private Object nextNoTry(CallContext ctx) throws InterruptedException {
+    private Object nextNoTry(Context ctx) throws InterruptedException {
         if (Thread.currentThread().isInterrupted()) throw new InterruptedException();
         if (codePtr < 0 || codePtr >= function.body.length) return null;
 
@@ -125,39 +102,16 @@ public class CodeFrame {
         var loc = instr.location;
         if (loc != null) prevLoc = loc;
 
-        // var debugState = ctx.getData(Engine.DEBUG_STATE_KEY);
-        // if (debugCmd == null) {
-        //     if (ctx.getData(STOP_AT_START_KEY, false)) debugCmd = DebugCommand.STEP_OVER;
-        //     else debugCmd = DebugCommand.NORMAL;
-
-        //     if (debugState != null) debugState.pushFrame(this);
-        // }
-
-        // if (debugState != null && loc != null) {
-        //     if (
-        //         instr.type == Type.NOP && instr.match("debug") || debugState.breakpoints.contains(loc) || (
-        //             ctx.getData(STEPPING_TROUGH_KEY, false) &&
-        //             (debugCmd == DebugCommand.STEP_INTO || debugCmd == DebugCommand.STEP_OVER)
-        //         )
-        //     ) {
-        //         ctx.setData(STEPPING_TROUGH_KEY, true);
-
-        //         debugState.breakpointNotifier.next(new BreakpointData(loc, ctx));
-        //         debugCmd = debugState.commandNotifier.toAwaitable().await();
-        //         if (debugCmd == DebugCommand.NORMAL) ctx.setData(STEPPING_TROUGH_KEY, false);
-        //     }
-        // }
-
         try {
             this.jumpFlag = false;
-            return Runners.exec(debugCmd, instr, this, ctx);
+            return Runners.exec(ctx, instr, this);
         }
         catch (EngineException e) {
             throw e.add(function.name, prevLoc);
         }
     }
 
-    public Object next(CallContext ctx, Object prevReturn, Object prevError) throws InterruptedException {
+    public Object next(Context ctx, Object prevReturn, Object prevError) throws InterruptedException {
         TryCtx tryCtx = null;
         if (prevError != Runners.NO_RETURN) prevReturn = Runners.NO_RETURN;
 
@@ -257,6 +211,7 @@ public class CodeFrame {
             catch (EngineException e) {
                 if (tryCtx.hasCatch) {
                     tryCtx.state = TryCtx.STATE_CATCH;
+                    tryCtx.err = e;
                     codePtr = tryCtx.catchStart;
                     scope.catchVars.add(new ValueVariable(false, e.value));
                     return Runners.NO_RETURN;
@@ -281,6 +236,7 @@ public class CodeFrame {
                 else return res;
             }
             catch (EngineException e) {
+                e.cause = tryCtx.err;
                 if (tryCtx.hasFinally) {
                     tryCtx.err = e;
                     tryCtx.state = TryCtx.STATE_FINALLY_THREW;
@@ -291,29 +247,38 @@ public class CodeFrame {
             codePtr = tryCtx.finallyStart;
             return Runners.NO_RETURN;
         }
+        else if (tryCtx.state == TryCtx.STATE_FINALLY_THREW) {
+            try {
+                return nextNoTry(ctx);
+            }
+            catch (EngineException e) {
+                e.cause = tryCtx.err;
+                throw e;
+            }
+        }
         else return nextNoTry(ctx);
     }
 
-    public Object run(CallContext ctx) throws InterruptedException {
+    public Object run(Context ctx) throws InterruptedException {
         try {
-            start(ctx);
+            ctx.message.pushFrame(this);
             while (true) {
                 var res = next(ctx, Runners.NO_RETURN, Runners.NO_RETURN);
                 if (res != Runners.NO_RETURN) return res;
             }
         }
         finally {
-            end(ctx);
+            ctx.message.popFrame(this);
         }
     }
 
-    public CodeFrame(Object thisArg, Object[] args, CodeFunction func) {
+    public CodeFrame(Context ctx, Object thisArg, Object[] args, CodeFunction func) {
         this.args = args.clone();
         this.scope = new LocalScope(func.localsN, func.captures);
         this.scope.get(0).set(null, thisArg);
         var argsObj = new ArrayValue();
         for (var i = 0; i < args.length; i++) {
-            argsObj.set(i, args[i]);
+            argsObj.set(ctx, i, args[i]);
         }
         this.scope.get(1).value = argsObj;
 

src/me/topchetoeu/jscript/engine/frame/Runners.java

@@ -3,8 +3,7 @@ package me.topchetoeu.jscript.engine.frame;
 import java.util.Collections;
 
 import me.topchetoeu.jscript.compilation.Instruction;
-import me.topchetoeu.jscript.engine.CallContext;
-import me.topchetoeu.jscript.engine.DebugCommand;
+import me.topchetoeu.jscript.engine.Context;
 import me.topchetoeu.jscript.engine.Operation;
 import me.topchetoeu.jscript.engine.scope.ValueVariable;
 import me.topchetoeu.jscript.engine.values.ArrayValue;
@@ -18,62 +17,59 @@ import me.topchetoeu.jscript.exceptions.EngineException;
 public class Runners {
     public static final Object NO_RETURN = new Object();
 
-    public static Object execReturn(Instruction instr, CodeFrame frame, CallContext ctx) {
-        frame.codePtr++;
+    public static Object execReturn(Context ctx, Instruction instr, CodeFrame frame) {
         return frame.pop();
     }
-    public static Object execSignal(Instruction instr, CodeFrame frame, CallContext ctx) {
-        frame.codePtr++;
+    public static Object execSignal(Context ctx, Instruction instr, CodeFrame frame) {
         return new SignalValue(instr.get(0));
     }
-    public static Object execThrow(Instruction instr, CodeFrame frame, CallContext ctx) {
+    public static Object execThrow(Context ctx, Instruction instr, CodeFrame frame) {
         throw new EngineException(frame.pop());
     }
-    public static Object execThrowSyntax(Instruction instr, CodeFrame frame, CallContext ctx) {
+    public static Object execThrowSyntax(Context ctx, Instruction instr, CodeFrame frame) {
         throw EngineException.ofSyntax((String)instr.get(0));
     }
 
-    private static Object call(DebugCommand state, CallContext ctx, Object func, Object thisArg, Object... args) throws InterruptedException {
-        ctx.setData(CodeFrame.STOP_AT_START_KEY, state == DebugCommand.STEP_INTO);
+    private static Object call(Context ctx, Object func, Object thisArg, Object ...args) throws InterruptedException {
         return Values.call(ctx, func, thisArg, args);
     }
 
-    public static Object execCall(DebugCommand state, Instruction instr, CodeFrame frame, CallContext ctx) throws InterruptedException {
+    public static Object execCall(Context ctx, Instruction instr, CodeFrame frame) throws InterruptedException {
         var callArgs = frame.take(instr.get(0));
         var func = frame.pop();
         var thisArg = frame.pop();
 
-        frame.push(call(state, ctx, func, thisArg, callArgs));
+        frame.push(ctx, call(ctx, func, thisArg, callArgs));
 
         frame.codePtr++;
         return NO_RETURN;
     }
-    public static Object execCallNew(DebugCommand state, Instruction instr, CodeFrame frame, CallContext ctx) throws InterruptedException {
+    public static Object execCallNew(Context ctx, Instruction instr, CodeFrame frame) throws InterruptedException {
         var callArgs = frame.take(instr.get(0));
         var funcObj = frame.pop();
 
         if (Values.isFunction(funcObj) && Values.function(funcObj).special) {
-            frame.push(call(state, ctx, funcObj, null, callArgs));
+            frame.push(ctx, call(ctx, funcObj, null, callArgs));
         }
         else {
             var proto = Values.getMember(ctx, funcObj, "prototype");
             var obj = new ObjectValue();
             obj.setPrototype(ctx, proto);
-            call(state, ctx, funcObj, obj, callArgs);
-            frame.push(obj);
+            call(ctx, funcObj, obj, callArgs);
+            frame.push(ctx, obj);
         }
 
         frame.codePtr++;
         return NO_RETURN;
     }
 
-    public static Object execMakeVar(Instruction instr, CodeFrame frame, CallContext ctx) throws InterruptedException {
+    public static Object execMakeVar(Context ctx, Instruction instr, CodeFrame frame) throws InterruptedException {
         var name = (String)instr.get(0);
-        frame.function.globals.define(name);
+        ctx.function.global.define(name);
         frame.codePtr++;
         return NO_RETURN;
     }
-    public static Object execDefProp(Instruction instr, CodeFrame frame, CallContext ctx) throws InterruptedException {
+    public static Object execDefProp(Context ctx, Instruction instr, CodeFrame frame) throws InterruptedException {
         var setter = frame.pop();
         var getter = frame.pop();
         var name = frame.pop();
@@ -82,28 +78,28 @@ public class Runners {
         if (getter != null && !Values.isFunction(getter)) throw EngineException.ofType("Getter must be a function or undefined.");
         if (setter != null && !Values.isFunction(setter)) throw EngineException.ofType("Setter must be a function or undefined.");
         if (!Values.isObject(obj)) throw EngineException.ofType("Property apply target must be an object.");
-        Values.object(obj).defineProperty(name, Values.function(getter), Values.function(setter), false, false);
+        Values.object(obj).defineProperty(ctx, name, Values.function(getter), Values.function(setter), false, false);
 
-        frame.push(obj);
+        frame.push(ctx, obj);
         frame.codePtr++;
         return NO_RETURN;
     }
-    public static Object execInstanceof(Instruction instr, CodeFrame frame, CallContext ctx) throws InterruptedException {
+    public static Object execInstanceof(Context ctx, Instruction instr, CodeFrame frame) throws InterruptedException {
         var type = frame.pop();
         var obj = frame.pop();
 
         if (!Values.isPrimitive(type)) {
             var proto = Values.getMember(ctx, type, "prototype");
-            frame.push(Values.isInstanceOf(ctx, obj, proto));
+            frame.push(ctx, Values.isInstanceOf(ctx, obj, proto));
         }
         else {
-            frame.push(false);
+            frame.push(ctx, false);
         }
 
         frame.codePtr++;
         return NO_RETURN;
     }
-    public static Object execKeys(Instruction instr, CodeFrame frame, CallContext ctx) throws InterruptedException {
+    public static Object execKeys(Context ctx, Instruction instr, CodeFrame frame) throws InterruptedException {
         var val = frame.pop();
 
         var arr = new ObjectValue();
@@ -113,81 +109,81 @@ public class Runners {
         Collections.reverse(members);
         for (var el : members) {
             if (el instanceof Symbol) continue;
-            arr.defineProperty(i++, el);
+            arr.defineProperty(ctx, i++, el);
         }
 
-        arr.defineProperty("length", i);
+        arr.defineProperty(ctx, "length", i);
 
-        frame.push(arr);
+        frame.push(ctx, arr);
         frame.codePtr++;
         return NO_RETURN;
     }
 
-    public static Object execTry(DebugCommand state, Instruction instr, CodeFrame frame, CallContext ctx) throws InterruptedException {
+    public static Object execTry(Context ctx, Instruction instr, CodeFrame frame) throws InterruptedException {
         frame.addTry(instr.get(0), instr.get(1), instr.get(2));
         frame.codePtr++;
         return NO_RETURN;
     }
 
-    public static Object execDup(Instruction instr, CodeFrame frame, CallContext ctx) {
+    public static Object execDup(Context ctx, Instruction instr, CodeFrame frame) {
         int offset = instr.get(0), count = instr.get(1);
 
         for (var i = 0; i < count; i++) {
-            frame.push(frame.peek(offset + count - 1));
+            frame.push(ctx, frame.peek(offset + count - 1));
         }
 
         frame.codePtr++;
         return NO_RETURN;
     }
-    public static Object execMove(Instruction instr, CodeFrame frame, CallContext ctx) {
+    public static Object execMove(Context ctx, Instruction instr, CodeFrame frame) {
         int offset = instr.get(0), count = instr.get(1);
 
         var tmp = frame.take(offset);
         var res = frame.take(count);
 
-        for (var i = 0; i < offset; i++) frame.push(tmp[i]);
-        for (var i = 0; i < count; i++) frame.push(res[i]);
+        for (var i = 0; i < offset; i++) frame.push(ctx, tmp[i]);
+        for (var i = 0; i < count; i++) frame.push(ctx, res[i]);
 
         frame.codePtr++;
         return NO_RETURN;
     }
-    public static Object execLoadUndefined(Instruction instr, CodeFrame frame, CallContext ctx) {
-        frame.push(null);
+    public static Object execLoadUndefined(Context ctx, Instruction instr, CodeFrame frame) {
+        frame.push(ctx, null);
         frame.codePtr++;
         return NO_RETURN;
     }
-    public static Object execLoadValue(Instruction instr, CodeFrame frame, CallContext ctx) {
-        frame.push(instr.get(0));
+    public static Object execLoadValue(Context ctx, Instruction instr, CodeFrame frame) {
+        frame.push(ctx, instr.get(0));
         frame.codePtr++;
         return NO_RETURN;
     }
-    public static Object execLoadVar(Instruction instr, CodeFrame frame, CallContext ctx) throws InterruptedException {
+    public static Object execLoadVar(Context ctx, Instruction instr, CodeFrame frame) throws InterruptedException {
         var i = instr.get(0);
 
-        if (i instanceof String) frame.push(frame.function.globals.get(ctx, (String)i));
-        else frame.push(frame.scope.get((int)i).get(ctx));
+        if (i instanceof String) frame.push(ctx, ctx.function.global.get(ctx, (String)i));
+        else frame.push(ctx, frame.scope.get((int)i).get(ctx));
 
         frame.codePtr++;
         return NO_RETURN;
     }
-    public static Object execLoadObj(Instruction instr, CodeFrame frame, CallContext ctx) {
-        frame.push(new ObjectValue());
+    public static Object execLoadObj(Context ctx, Instruction instr, CodeFrame frame) {
+        frame.push(ctx, new ObjectValue());
         frame.codePtr++;
         return NO_RETURN;
     }
-    public static Object execLoadGlob(Instruction instr, CodeFrame frame, CallContext ctx) {
-        frame.push(frame.function.globals.obj);
+    public static Object execLoadGlob(Context ctx, Instruction instr, CodeFrame frame) {
+        frame.push(ctx, ctx.function.global.obj);
         frame.codePtr++;
         return NO_RETURN;
     }
-    public static Object execLoadArr(Instruction instr, CodeFrame frame, CallContext ctx) {
+    public static Object execLoadArr(Context ctx, Instruction instr, CodeFrame frame) {
         var res = new ArrayValue();
         res.setSize(instr.get(0));
-        frame.push(res);
+        frame.push(ctx, res);
         frame.codePtr++;
         return NO_RETURN;
     }
-    public static Object execLoadFunc(Instruction instr, CodeFrame frame, CallContext ctx) {
+    public static Object execLoadFunc(Context ctx, Instruction instr, CodeFrame frame) {
         int n = (Integer)instr.get(0);
         int localsN = (Integer)instr.get(1);
         int len = (Integer)instr.get(2);
@@ -202,19 +198,18 @@ public class Runners {
         var body = new Instruction[end - start];
         System.arraycopy(frame.function.body, start, body, 0, end - start);
 
-        var func = new CodeFunction("", localsN, len, frame.function.globals, captures, body);
-        frame.push(func);
+        var func = new CodeFunction(ctx.function, "", localsN, len, captures, body);
+        frame.push(ctx, func);
 
         frame.codePtr += n;
         return NO_RETURN;
     }
-    public static Object execLoadMember(DebugCommand state, Instruction instr, CodeFrame frame, CallContext ctx) throws InterruptedException {
+    public static Object execLoadMember(Context ctx, Instruction instr, CodeFrame frame) throws InterruptedException {
         var key = frame.pop();
         var obj = frame.pop();
 
         try {
-            ctx.setData(CodeFrame.STOP_AT_START_KEY, state == DebugCommand.STEP_INTO);
-            frame.push(Values.getMember(ctx, obj, key));
+            frame.push(ctx, Values.getMember(ctx, obj, key));
         }
         catch (IllegalArgumentException e) {
             throw EngineException.ofType(e.getMessage());
@@ -222,54 +217,53 @@ public class Runners {
         frame.codePtr++;
         return NO_RETURN;
     }
-    public static Object execLoadKeyMember(DebugCommand state, Instruction instr, CodeFrame frame, CallContext ctx) throws InterruptedException {
-        frame.push(instr.get(0));
-        return execLoadMember(state, instr, frame, ctx);
+    public static Object execLoadKeyMember(Context ctx, Instruction instr, CodeFrame frame) throws InterruptedException {
+        frame.push(ctx, instr.get(0));
+        return execLoadMember(ctx, instr, frame);
     }
-    public static Object execLoadRegEx(Instruction instr, CodeFrame frame, CallContext ctx) throws InterruptedException {
-        frame.push(ctx.engine().makeRegex(instr.get(0), instr.get(1)));
+    public static Object execLoadRegEx(Context ctx, Instruction instr, CodeFrame frame) throws InterruptedException {
+        frame.push(ctx, ctx.function.regexConstructor.call(ctx, null, instr.get(0), instr.get(1)));
         frame.codePtr++;
         return NO_RETURN;
     }
 
-    public static Object execDiscard(Instruction instr, CodeFrame frame, CallContext ctx) {
+    public static Object execDiscard(Context ctx, Instruction instr, CodeFrame frame) {
         frame.pop();
         frame.codePtr++;
         return NO_RETURN;
     }
-    public static Object execStoreMember(DebugCommand state, Instruction instr, CodeFrame frame, CallContext ctx) throws InterruptedException {
+    public static Object execStoreMember(Context ctx, Instruction instr, CodeFrame frame) throws InterruptedException {
         var val = frame.pop();
         var key = frame.pop();
         var obj = frame.pop();
 
-        ctx.setData(CodeFrame.STOP_AT_START_KEY, state == DebugCommand.STEP_INTO);
         if (!Values.setMember(ctx, obj, key, val)) throw EngineException.ofSyntax("Can't set member '" + key + "'.");
-        if ((boolean)instr.get(0)) frame.push(val);
+        if ((boolean)instr.get(0)) frame.push(ctx, val);
         frame.codePtr++;
         return NO_RETURN;
     }
-    public static Object execStoreVar(Instruction instr, CodeFrame frame, CallContext ctx) throws InterruptedException {
+    public static Object execStoreVar(Context ctx, Instruction instr, CodeFrame frame) throws InterruptedException {
         var val = (boolean)instr.get(1) ? frame.peek() : frame.pop();
         var i = instr.get(0);
 
-        if (i instanceof String) frame.function.globals.set(ctx, (String)i, val);
+        if (i instanceof String) ctx.function.global.set(ctx, (String)i, val);
         else frame.scope.get((int)i).set(ctx, val);
 
         frame.codePtr++;
         return NO_RETURN;
     }
-    public static Object execStoreSelfFunc(Instruction instr, CodeFrame frame, CallContext ctx) {
+    public static Object execStoreSelfFunc(Context ctx, Instruction instr, CodeFrame frame) {
         frame.scope.locals[(int)instr.get(0)].set(ctx, frame.function);
         frame.codePtr++;
         return NO_RETURN;
     }
     
-    public static Object execJmp(Instruction instr, CodeFrame frame, CallContext ctx) {
+    public static Object execJmp(Context ctx, Instruction instr, CodeFrame frame) {
         frame.codePtr += (int)instr.get(0);
         frame.jumpFlag = true;
         return NO_RETURN;
     }
-    public static Object execJmpIf(Instruction instr, CodeFrame frame, CallContext ctx) throws InterruptedException {
+    public static Object execJmpIf(Context ctx, Instruction instr, CodeFrame frame) throws InterruptedException {
         if (Values.toBoolean(frame.pop())) {
             frame.codePtr += (int)instr.get(0);
             frame.jumpFlag = true;
@@ -277,7 +271,7 @@ public class Runners {
         else frame.codePtr ++;
         return NO_RETURN;
     }
-    public static Object execJmpIfNot(Instruction instr, CodeFrame frame, CallContext ctx) throws InterruptedException {
+    public static Object execJmpIfNot(Context ctx, Instruction instr, CodeFrame frame) throws InterruptedException {
         if (Values.not(frame.pop())) {
             frame.codePtr += (int)instr.get(0);
             frame.jumpFlag = true;
@@ -286,32 +280,32 @@ public class Runners {
         return NO_RETURN;
     }
 
-    public static Object execIn(Instruction instr, CodeFrame frame, CallContext ctx) throws InterruptedException {
+    public static Object execIn(Context ctx, Instruction instr, CodeFrame frame) throws InterruptedException {
         var obj = frame.pop();
         var index = frame.pop();
 
-        frame.push(Values.hasMember(ctx, obj, index, false));
+        frame.push(ctx, Values.hasMember(ctx, obj, index, false));
         frame.codePtr++;
         return NO_RETURN;
     }
-    public static Object execTypeof(Instruction instr, CodeFrame frame, CallContext ctx) throws InterruptedException {
+    public static Object execTypeof(Context ctx, Instruction instr, CodeFrame frame) throws InterruptedException {
         String name = instr.get(0);
         Object obj;
 
         if (name != null) {
-            if (frame.function.globals.has(ctx, name)) {
-                obj = frame.function.globals.get(ctx, name);
+            if (ctx.function.global.has(ctx, name)) {
+                obj = ctx.function.global.get(ctx, name);
             }
             else obj = null;
         }
         else obj = frame.pop();
 
-        frame.push(Values.type(obj));
+        frame.push(ctx, Values.type(obj));
 
         frame.codePtr++;
         return NO_RETURN;
     }
-    public static Object execNop(Instruction instr, CodeFrame frame, CallContext ctx) {
+    public static Object execNop(Context ctx, Instruction instr, CodeFrame frame) {
         if (instr.is(0, "dbg_names")) {
             var names = new String[instr.params.length - 1];
             for (var i = 0; i < instr.params.length - 1; i++) {
@@ -325,67 +319,67 @@ public class Runners {
         return NO_RETURN;
     }
 
-    public static Object execDelete(Instruction instr, CodeFrame frame, CallContext ctx) throws InterruptedException {
+    public static Object execDelete(Context ctx, Instruction instr, CodeFrame frame) throws InterruptedException {
         var key = frame.pop();
         var val = frame.pop();
 
         if (!Values.deleteMember(ctx, val, key)) throw EngineException.ofSyntax("Can't delete member '" + key + "'.");
-        frame.push(true);
+        frame.push(ctx, true);
         frame.codePtr++;
         return NO_RETURN;
     }
 
-    public static Object execOperation(Instruction instr, CodeFrame frame, CallContext ctx) throws InterruptedException {
+    public static Object execOperation(Context ctx, Instruction instr, CodeFrame frame) throws InterruptedException {
         Operation op = instr.get(0);
         var args = new Object[op.operands];
 
         for (var i = op.operands - 1; i >= 0; i--) args[i] = frame.pop();
 
-        frame.push(Values.operation(ctx, op, args));
+        frame.push(ctx, Values.operation(ctx, op, args));
         frame.codePtr++;
         return NO_RETURN;
     }
 
-    public static Object exec(DebugCommand state, Instruction instr, CodeFrame frame, CallContext ctx) throws InterruptedException {
+    public static Object exec(Context ctx, Instruction instr, CodeFrame frame) throws InterruptedException {
         // System.out.println(instr + "@" + instr.location);
         switch (instr.type) {
-            case NOP: return execNop(instr, frame, ctx);
-            case RETURN: return execReturn(instr, frame, ctx);
-            case SIGNAL: return execSignal(instr, frame, ctx);
-            case THROW: return execThrow(instr, frame, ctx);
-            case THROW_SYNTAX: return execThrowSyntax(instr, frame, ctx);
-            case CALL: return execCall(state, instr, frame, ctx);
-            case CALL_NEW: return execCallNew(state, instr, frame, ctx);
-            case TRY: return execTry(state, instr, frame, ctx);
+            case NOP: return execNop(ctx, instr, frame);
+            case RETURN: return execReturn(ctx, instr, frame);
+            case SIGNAL: return execSignal(ctx, instr, frame);
+            case THROW: return execThrow(ctx, instr, frame);
+            case THROW_SYNTAX: return execThrowSyntax(ctx, instr, frame);
+            case CALL: return execCall(ctx, instr, frame);
+            case CALL_NEW: return execCallNew(ctx, instr, frame);
+            case TRY: return execTry(ctx, instr, frame);
 
-            case DUP: return execDup(instr, frame, ctx);
-            case MOVE: return execMove(instr, frame, ctx);
-            case LOAD_VALUE: return execLoadValue(instr, frame, ctx);
-            case LOAD_VAR: return execLoadVar(instr, frame, ctx);
-            case LOAD_OBJ: return execLoadObj(instr, frame, ctx);
-            case LOAD_ARR: return execLoadArr(instr, frame, ctx);
-            case LOAD_FUNC: return execLoadFunc(instr, frame, ctx);
-            case LOAD_MEMBER: return execLoadMember(state, instr, frame, ctx);
-            case LOAD_VAL_MEMBER: return execLoadKeyMember(state, instr, frame, ctx);
-            case LOAD_REGEX: return execLoadRegEx(instr, frame, ctx);
-            case LOAD_GLOB: return execLoadGlob(instr, frame, ctx);
+            case DUP: return execDup(ctx, instr, frame);
+            case MOVE: return execMove(ctx, instr, frame);
+            case LOAD_VALUE: return execLoadValue(ctx, instr, frame);
+            case LOAD_VAR: return execLoadVar(ctx, instr, frame);
+            case LOAD_OBJ: return execLoadObj(ctx, instr, frame);
+            case LOAD_ARR: return execLoadArr(ctx, instr, frame);
+            case LOAD_FUNC: return execLoadFunc(ctx, instr, frame);
+            case LOAD_MEMBER: return execLoadMember(ctx, instr, frame);
+            case LOAD_VAL_MEMBER: return execLoadKeyMember(ctx, instr, frame);
+            case LOAD_REGEX: return execLoadRegEx(ctx, instr, frame);
+            case LOAD_GLOB: return execLoadGlob(ctx, instr, frame);
 
-            case DISCARD: return execDiscard(instr, frame, ctx);
-            case STORE_MEMBER: return execStoreMember(state, instr, frame, ctx);
-            case STORE_VAR: return execStoreVar(instr, frame, ctx);
-            case STORE_SELF_FUNC: return execStoreSelfFunc(instr, frame, ctx);
-            case MAKE_VAR: return execMakeVar(instr, frame, ctx);
+            case DISCARD: return execDiscard(ctx, instr, frame);
+            case STORE_MEMBER: return execStoreMember(ctx, instr, frame);
+            case STORE_VAR: return execStoreVar(ctx, instr, frame);
+            case STORE_SELF_FUNC: return execStoreSelfFunc(ctx, instr, frame);
+            case MAKE_VAR: return execMakeVar(ctx, instr, frame);
 
-            case KEYS: return execKeys(instr, frame, ctx);
-            case DEF_PROP: return execDefProp(instr, frame, ctx);
-            case TYPEOF: return execTypeof(instr, frame, ctx);
-            case DELETE: return execDelete(instr, frame, ctx);
+            case KEYS: return execKeys(ctx, instr, frame);
+            case DEF_PROP: return execDefProp(ctx, instr, frame);
+            case TYPEOF: return execTypeof(ctx, instr, frame);
+            case DELETE: return execDelete(ctx, instr, frame);
 
-            case JMP: return execJmp(instr, frame, ctx);
-            case JMP_IF: return execJmpIf(instr, frame, ctx);
-            case JMP_IFN: return execJmpIfNot(instr, frame, ctx);
+            case JMP: return execJmp(ctx, instr, frame);
+            case JMP_IF: return execJmpIf(ctx, instr, frame);
+            case JMP_IFN: return execJmpIfNot(ctx, instr, frame);
 
-            case OPERATION: return execOperation(instr, frame, ctx);
+            case OPERATION: return execOperation(ctx, instr, frame);
 
             default: throw EngineException.ofSyntax("Invalid instruction " + instr.type.name() + ".");
         }

src/me/topchetoeu/jscript/engine/scope/GlobalScope.java

@@ -3,7 +3,7 @@ package me.topchetoeu.jscript.engine.scope;
 import java.util.HashSet;
 import java.util.Set;
 
-import me.topchetoeu.jscript.engine.CallContext;
+import me.topchetoeu.jscript.engine.Context;
 import me.topchetoeu.jscript.engine.values.FunctionValue;
 import me.topchetoeu.jscript.engine.values.NativeFunction;
 import me.topchetoeu.jscript.engine.values.ObjectValue;
@@ -11,12 +11,11 @@ import me.topchetoeu.jscript.exceptions.EngineException;
 
 public class GlobalScope implements ScopeRecord {
     public final ObjectValue obj;
-    public final GlobalScope parent;
 
     @Override
-    public GlobalScope parent() { return parent; }
+    public GlobalScope parent() { return null; }
 
-    public boolean has(CallContext ctx, String name) throws InterruptedException {
+    public boolean has(Context ctx, String name) throws InterruptedException {
         return obj.hasMember(ctx, name, false);
     }
     public Object getKey(String name) {
@@ -24,7 +23,9 @@ public class GlobalScope implements ScopeRecord {
     }
 
     public GlobalScope globalChild() {
-        return new GlobalScope(this);
+        var obj = new ObjectValue();
+        obj.setPrototype(null, this.obj);
+        return new GlobalScope(obj);
     }
     public LocalScopeRecord child() {
         return new LocalScopeRecord(this);
@@ -38,31 +39,31 @@ public class GlobalScope implements ScopeRecord {
             Thread.currentThread().interrupt();
             return name;
         }
-        obj.defineProperty(name, null);
+        obj.defineProperty(null, name, null);
         return name;
     }
     public void define(String name, Variable val) {
-        obj.defineProperty(name,
+        obj.defineProperty(null, name,
             new NativeFunction("get " + name, (ctx, th, a) -> val.get(ctx)),
             new NativeFunction("set " + name, (ctx, th, args) -> { val.set(ctx, args.length > 0 ? args[0] : null); return null; }),
             true, true
         );
     }
-    public void define(String name, boolean readonly, Object val) {
-        obj.defineProperty(name, val, readonly, true, true);
+    public void define(Context ctx, String name, boolean readonly, Object val) {
+        obj.defineProperty(ctx, name, val, readonly, true, true);
     }
-    public void define(String... names) {
+    public void define(String ...names) {
         for (var n : names) define(n);
     }
     public void define(boolean readonly, FunctionValue val) {
-        define(val.name, readonly, val);
+        define(null, val.name, readonly, val);
     }
 
-    public Object get(CallContext ctx, String name) throws InterruptedException {
+    public Object get(Context ctx, String name) throws InterruptedException {
         if (!obj.hasMember(ctx, name, false)) throw EngineException.ofSyntax("The variable '" + name + "' doesn't exist.");
         else return obj.getMember(ctx, name);
     }
-    public void set(CallContext ctx, String name, Object val) throws InterruptedException {
+    public void set(Context ctx, String name, Object val) throws InterruptedException {
         if (!obj.hasMember(ctx, name, false)) throw EngineException.ofSyntax("The variable '" + name + "' doesn't exist.");
         if (!obj.setMember(ctx, name, val, false)) throw EngineException.ofSyntax("The global '" + name + "' is readonly.");
     }
@@ -78,12 +79,9 @@ public class GlobalScope implements ScopeRecord {
     }
 
     public GlobalScope() {
-        this.parent = null;
         this.obj = new ObjectValue();
     }
-    public GlobalScope(GlobalScope parent) {
-        this.parent = null;
-        this.obj = new ObjectValue();
-        this.obj.setPrototype(null, parent.obj);
+    public GlobalScope(ObjectValue val) {
+        this.obj = val;
     }
 }

src/me/topchetoeu/jscript/engine/scope/LocalScope.java

@@ -4,7 +4,6 @@ import java.util.ArrayList;
 
 public class LocalScope {
     private String[] names;
-    private LocalScope parent;
     public final ValueVariable[] captures;
     public final ValueVariable[] locals;
     public final ArrayList<ValueVariable> catchVars = new ArrayList<>();
@@ -33,18 +32,11 @@ public class LocalScope {
         return captures.length + locals.length;
     }
 
-    public GlobalScope toGlobal(GlobalScope global) {
-        GlobalScope res;
-
-        if (parent == null) res = new GlobalScope(global);
-        else res = new GlobalScope(parent.toGlobal(global));
-
+    public void toGlobal(GlobalScope global) {
         var names = getNames();
         for (var i = 0; i < names.length; i++) {
-            res.define(names[i], locals[i]);
+            global.define(names[i], locals[i]);
         }
-
-        return res;
     }
 
     public LocalScope(int n, ValueVariable[] captures) {
@@ -55,8 +47,4 @@ public class LocalScope {
             locals[i] = new ValueVariable(false, null);
         }
     }
-    public LocalScope(int n, ValueVariable[] captures, LocalScope parent) {
-        this(n, captures);
-        this.parent = parent;
-    }
 }

src/me/topchetoeu/jscript/engine/scope/LocalScopeRecord.java

@@ -2,7 +2,7 @@ package me.topchetoeu.jscript.engine.scope;
 
 import java.util.ArrayList;
 
-import me.topchetoeu.jscript.engine.CallContext;
+import me.topchetoeu.jscript.engine.Context;
 
 public class LocalScopeRecord implements ScopeRecord {
     public final LocalScopeRecord parent;
@@ -59,7 +59,7 @@ public class LocalScopeRecord implements ScopeRecord {
 
         return name;
     }
-    public boolean has(CallContext ctx, String name) throws InterruptedException {
+    public boolean has(Context ctx, String name) throws InterruptedException {
         return
             global.has(ctx, name) ||
             locals.contains(name) ||

src/me/topchetoeu/jscript/engine/scope/ValueVariable.java

@@ -1,6 +1,6 @@
 package me.topchetoeu.jscript.engine.scope;
 
-import me.topchetoeu.jscript.engine.CallContext;
+import me.topchetoeu.jscript.engine.Context;
 import me.topchetoeu.jscript.engine.values.Values;
 
 public class ValueVariable implements Variable {
@@ -11,14 +11,14 @@ public class ValueVariable implements Variable {
     public boolean readonly() { return readonly; }
 
     @Override
-    public Object get(CallContext ctx) {
+    public Object get(Context ctx) {
         return value;
     }
 
     @Override
-    public void set(CallContext ctx, Object val) {
+    public void set(Context ctx, Object val) {
         if (readonly) return;
-        this.value = Values.normalize(val);
+        this.value = Values.normalize(ctx, val);
     }
     
     public ValueVariable(boolean readonly, Object val) {

src/me/topchetoeu/jscript/engine/scope/Variable.java

@@ -1,9 +1,9 @@
 package me.topchetoeu.jscript.engine.scope;
 
-import me.topchetoeu.jscript.engine.CallContext;
+import me.topchetoeu.jscript.engine.Context;
 
 public interface Variable {
-    Object get(CallContext ctx) throws InterruptedException;
+    Object get(Context ctx) throws InterruptedException;
     default boolean readonly() { return true; }
-    default void set(CallContext ctx, Object val) throws InterruptedException { }
+    default void set(Context ctx, Object val) throws InterruptedException { }
 }

src/me/topchetoeu/jscript/engine/values/ArrayValue.java

@@ -5,7 +5,7 @@ import java.util.Collection;
 import java.util.Comparator;
 import java.util.List;
 
-import me.topchetoeu.jscript.engine.CallContext;
+import me.topchetoeu.jscript.engine.Context;
 
 public class ArrayValue extends ObjectValue {
     private static final Object EMPTY = new Object();
@@ -29,14 +29,14 @@ public class ArrayValue extends ObjectValue {
         if (res == EMPTY) return null;
         else return res;
     }
-    public void set(int i, Object val) {
+    public void set(Context ctx, int i, Object val) {
         if (i < 0) return;
 
         while (values.size() <= i) {
             values.add(EMPTY);
         }
 
-        values.set(i, Values.normalize(val));
+        values.set(i, Values.normalize(ctx, val));
     }
     public boolean has(int i) {
         return i >= 0 && i < values.size() && values.get(i) != EMPTY;
@@ -83,7 +83,7 @@ public class ArrayValue extends ObjectValue {
     }
 
     @Override
-    protected Object getField(CallContext ctx, Object key) throws InterruptedException {
+    protected Object getField(Context ctx, Object key) throws InterruptedException {
         if (key.equals("length")) return values.size();
         if (key instanceof Number) {
             var i = ((Number)key).doubleValue();
@@ -95,14 +95,14 @@ public class ArrayValue extends ObjectValue {
         return super.getField(ctx, key);
     }
     @Override
-    protected boolean setField(CallContext ctx, Object key, Object val) throws InterruptedException {
+    protected boolean setField(Context ctx, Object key, Object val) throws InterruptedException {
         if (key.equals("length")) {
             return setSize((int)Values.toNumber(ctx, val));
         }
         if (key instanceof Number) {
             var i = Values.number(key);
             if (i >= 0 && i - Math.floor(i) == 0) {
-                set((int)i, val);
+                set(ctx, (int)i, val);
                 return true;
             }
         }
@@ -110,7 +110,7 @@ public class ArrayValue extends ObjectValue {
         return super.setField(ctx, key, val);
     }
     @Override
-    protected boolean hasField(CallContext ctx, Object key) throws InterruptedException {
+    protected boolean hasField(Context ctx, Object key) throws InterruptedException {
         if (key.equals("length")) return true;
         if (key instanceof Number) {
             var i = Values.number(key);
@@ -122,7 +122,7 @@ public class ArrayValue extends ObjectValue {
         return super.hasField(ctx, key);
     }
     @Override
-    protected void deleteField(CallContext ctx, Object key) throws InterruptedException {
+    protected void deleteField(Context ctx, Object key) throws InterruptedException {
         if (key instanceof Number) {
             var i = Values.number(key);
             if (i >= 0 && i - Math.floor(i) == 0) {
@@ -149,12 +149,12 @@ public class ArrayValue extends ObjectValue {
         nonEnumerableSet.add("length");
         nonConfigurableSet.add("length");
     }
-    public ArrayValue(Object ...values) {
+    public ArrayValue(Context ctx, Object ...values) {
         this();
-        for (var i = 0; i < values.length; i++) this.values.add(values[i]);
+        for (var i = 0; i < values.length; i++) this.values.add(Values.normalize(ctx, values[i]));
     }
 
-    public static ArrayValue of(Collection<Object> values) {
-        return new ArrayValue(values.toArray(Object[]::new));
+    public static ArrayValue of(Context ctx, Collection<Object> values) {
+        return new ArrayValue(ctx, values.toArray(Object[]::new));
     }
 }

src/me/topchetoeu/jscript/engine/values/CodeFunction.java

@@ -1,23 +1,18 @@
 package me.topchetoeu.jscript.engine.values;
 
-import java.util.LinkedHashMap;
-
 import me.topchetoeu.jscript.Location;
 import me.topchetoeu.jscript.compilation.Instruction;
-import me.topchetoeu.jscript.compilation.Instruction.Type;
-import me.topchetoeu.jscript.engine.CallContext;
+import me.topchetoeu.jscript.engine.Context;
+import me.topchetoeu.jscript.engine.FunctionContext;
 import me.topchetoeu.jscript.engine.frame.CodeFrame;
-import me.topchetoeu.jscript.engine.scope.GlobalScope;
 import me.topchetoeu.jscript.engine.scope.ValueVariable;
 
 public class CodeFunction extends FunctionValue {
     public final int localsN;
     public final int length;
     public final Instruction[] body;
-    public final LinkedHashMap<Location, Integer> breakableLocToIndex = new LinkedHashMap<>();
-    public final LinkedHashMap<Integer, Location> breakableIndexToLoc = new LinkedHashMap<>();
     public final ValueVariable[] captures;
-    public final GlobalScope globals;
+    public FunctionContext environment;
 
     public Location loc() {
         for (var instr : body) {
@@ -33,24 +28,16 @@ public class CodeFunction extends FunctionValue {
     }
 
     @Override
-    public Object call(CallContext ctx, Object thisArg, Object... args) throws InterruptedException {
-        return new CodeFrame(thisArg, args, this).run(ctx);
+    public Object call(Context ctx, Object thisArg, Object ...args) throws InterruptedException {
+        return new CodeFrame(ctx, thisArg, args, this).run(new Context(environment, ctx.message));
     }
 
-    public CodeFunction(String name, int localsN, int length, GlobalScope globals, ValueVariable[] captures, Instruction[] body) {
+    public CodeFunction(FunctionContext environment, String name, int localsN, int length, ValueVariable[] captures, Instruction[] body) {
         super(name, length);
         this.captures = captures;
-        this.globals = globals;
+        this.environment = environment;
         this.localsN = localsN;
         this.length = length;
         this.body = body;
-
-        for (var i = 0; i < body.length; i++) {
-            if (body[i].type == Type.LOAD_FUNC) i += (int)body[i].get(0);
-            if (body[i].debugged && body[i].location != null) {
-                breakableLocToIndex.put(body[i].location, i);
-                breakableIndexToLoc.put(i, body[i].location);
-            }
-        }
     }
 }

src/me/topchetoeu/jscript/engine/values/FunctionValue.java

@@ -2,7 +2,7 @@ package me.topchetoeu.jscript.engine.values;
 
 import java.util.List;
 
-import me.topchetoeu.jscript.engine.CallContext;
+import me.topchetoeu.jscript.engine.Context;
 
 public abstract class FunctionValue extends ObjectValue {
     public String name = "";
@@ -11,29 +11,29 @@ public abstract class FunctionValue extends ObjectValue {
 
     @Override
     public String toString() {
-        return "function(...) { ... }";
+        return "function(...) {  ...}";
     }
 
-    public abstract Object call(CallContext ctx, Object thisArg, Object... args) throws InterruptedException;
-    public Object call(CallContext ctx) throws InterruptedException {
+    public abstract Object call(Context ctx, Object thisArg, Object ...args) throws InterruptedException;
+    public Object call(Context ctx) throws InterruptedException {
         return call(ctx, null);
     }
 
     @Override
-    protected Object getField(CallContext ctx, Object key) throws InterruptedException {
+    protected Object getField(Context ctx, Object key) throws InterruptedException {
         if (key.equals("name")) return name;
         if (key.equals("length")) return length;
         return super.getField(ctx, key);
     }
     @Override
-    protected boolean setField(CallContext ctx, Object key, Object val) throws InterruptedException {
+    protected boolean setField(Context ctx, Object key, Object val) throws InterruptedException {
         if (key.equals("name")) name = Values.toString(ctx, val);
         else if (key.equals("length")) length = (int)Values.toNumber(ctx, val);
         else return super.setField(ctx, key, val);
         return true;
     }
     @Override
-    protected boolean hasField(CallContext ctx, Object key) throws InterruptedException {
+    protected boolean hasField(Context ctx, Object key) throws InterruptedException {
         if (key.equals("name")) return true;
         if (key.equals("length")) return true;
         return super.hasField(ctx, key);
@@ -63,8 +63,8 @@ public abstract class FunctionValue extends ObjectValue {
         nonEnumerableSet.add("length");
 
         var proto = new ObjectValue();
-        proto.defineProperty("constructor", this, true, false, false);
-        this.defineProperty("prototype", proto, true, false, false);
+        proto.defineProperty(null, "constructor", this, true, false, false);
+        this.defineProperty(null, "prototype", proto, true, false, false);
     }
 }
 

src/me/topchetoeu/jscript/engine/values/NativeFunction.java

@@ -1,16 +1,16 @@
 package me.topchetoeu.jscript.engine.values;
 
-import me.topchetoeu.jscript.engine.CallContext;
+import me.topchetoeu.jscript.engine.Context;
 
 public class NativeFunction extends FunctionValue {
     public static interface NativeFunctionRunner {
-        Object run(CallContext ctx, Object thisArg, Object[] args) throws InterruptedException;
+        Object run(Context ctx, Object thisArg, Object[] args) throws InterruptedException;
     }
 
     public final NativeFunctionRunner action;
 
     @Override
-    public Object call(CallContext ctx, Object thisArg, Object... args) throws InterruptedException {
+    public Object call(Context ctx, Object thisArg, Object ...args) throws InterruptedException {
         return action.run(ctx, thisArg, args);
     }
 

src/me/topchetoeu/jscript/engine/values/NativeWrapper.java

@@ -1,14 +1,14 @@
 package me.topchetoeu.jscript.engine.values;
 
-import me.topchetoeu.jscript.engine.CallContext;
+import me.topchetoeu.jscript.engine.Context;
 
 public class NativeWrapper extends ObjectValue {
     private static final Object NATIVE_PROTO = new Object();
     public final Object wrapped;
 
     @Override
-    public ObjectValue getPrototype(CallContext ctx) throws InterruptedException {
-        if (prototype == NATIVE_PROTO) return ctx.engine.getPrototype(wrapped.getClass());
+    public ObjectValue getPrototype(Context ctx) throws InterruptedException {
+        if (prototype == NATIVE_PROTO) return ctx.function.wrappersProvider.getProto(wrapped.getClass());
         else return super.getPrototype(ctx);
     }
 

src/me/topchetoeu/jscript/engine/values/ObjectValue.java

@@ -6,7 +6,7 @@ import java.util.HashSet;
 import java.util.List;
 import java.util.Map;
 
-import me.topchetoeu.jscript.engine.CallContext;
+import me.topchetoeu.jscript.engine.Context;
 
 public class ObjectValue {
     public static enum PlaceholderProto {
@@ -78,8 +78,8 @@ public class ObjectValue {
         state = State.FROZEN;
     }
 
-    public final boolean defineProperty(Object key, Object val, boolean writable, boolean configurable, boolean enumerable) {
-        key = Values.normalize(key); val = Values.normalize(val);
+    public final boolean defineProperty(Context ctx, Object key, Object val, boolean writable, boolean configurable, boolean enumerable) {
+        key = Values.normalize(ctx, key); val = Values.normalize(ctx, val);
         boolean reconfigured = 
             writable != memberWritable(key) ||
             configurable != memberConfigurable(key) ||
@@ -118,11 +118,11 @@ public class ObjectValue {
         values.put(key, val);
         return true;
     }
-    public final boolean defineProperty(Object key, Object val) {
-        return defineProperty(Values.normalize(key), Values.normalize(val), true, true, true);
+    public final boolean defineProperty(Context ctx, Object key, Object val) {
+        return defineProperty(ctx, key, val, true, true, true);
     }
-    public final boolean defineProperty(Object key, FunctionValue getter, FunctionValue setter, boolean configurable, boolean enumerable) {
-        key = Values.normalize(key);
+    public final boolean defineProperty(Context ctx, Object key, FunctionValue getter, FunctionValue setter, boolean configurable, boolean enumerable) {
+        key = Values.normalize(ctx, key);
         if (
             properties.containsKey(key) &&
             properties.get(key).getter == getter &&
@@ -145,15 +145,15 @@ public class ObjectValue {
         return true;
     }
 
-    public ObjectValue getPrototype(CallContext ctx) throws InterruptedException {
+    public ObjectValue getPrototype(Context ctx) throws InterruptedException {
         try {
-            if (prototype == OBJ_PROTO) return ctx.engine().objectProto();
-            if (prototype == ARR_PROTO) return ctx.engine().arrayProto();
-            if (prototype == FUNC_PROTO) return ctx.engine().functionProto();
-            if (prototype == ERR_PROTO) return ctx.engine().errorProto();
-            if (prototype == RANGE_ERR_PROTO) return ctx.engine().rangeErrorProto();
-            if (prototype == SYNTAX_ERR_PROTO) return ctx.engine().syntaxErrorProto();
-            if (prototype == TYPE_ERR_PROTO) return ctx.engine().typeErrorProto();
+            if (prototype == OBJ_PROTO) return ctx.function.proto("object");
+            if (prototype == ARR_PROTO) return ctx.function.proto("array");
+            if (prototype == FUNC_PROTO) return ctx.function.proto("function");
+            if (prototype == ERR_PROTO) return ctx.function.proto("error");
+            if (prototype == RANGE_ERR_PROTO) return ctx.function.proto("rangeErr");
+            if (prototype == SYNTAX_ERR_PROTO) return ctx.function.proto("syntaxErr");
+            if (prototype == TYPE_ERR_PROTO) return ctx.function.proto("typeErr");
         }
         catch (NullPointerException e) {
             return null;
@@ -161,22 +161,25 @@ public class ObjectValue {
 
         return (ObjectValue)prototype;
     }
-    public final boolean setPrototype(CallContext ctx, Object val) {
-        val = Values.normalize(val);
+    public final boolean setPrototype(Context ctx, Object val) {
+        val = Values.normalize(ctx, val);
 
         if (!extensible()) return false;
-        if (val == null || val == Values.NULL) prototype = null;
+        if (val == null || val == Values.NULL) {
+            prototype = null;
+            return true;
+        }
         else if (Values.isObject(val)) {
             var obj = Values.object(val);
 
-            if (ctx != null && ctx.engine() != null) {
-                if (obj == ctx.engine().objectProto()) prototype = OBJ_PROTO;
-                else if (obj == ctx.engine().arrayProto()) prototype = ARR_PROTO;
-                else if (obj == ctx.engine().functionProto()) prototype = FUNC_PROTO;
-                else if (obj == ctx.engine().errorProto()) prototype = ERR_PROTO;
-                else if (obj == ctx.engine().syntaxErrorProto()) prototype = SYNTAX_ERR_PROTO;
-                else if (obj == ctx.engine().typeErrorProto()) prototype = TYPE_ERR_PROTO;
-                else if (obj == ctx.engine().rangeErrorProto()) prototype = RANGE_ERR_PROTO;
+            if (ctx != null && ctx.function != null) {
+                if (obj == ctx.function.proto("object")) prototype = OBJ_PROTO;
+                else if (obj == ctx.function.proto("array")) prototype = ARR_PROTO;
+                else if (obj == ctx.function.proto("function")) prototype = FUNC_PROTO;
+                else if (obj == ctx.function.proto("error")) prototype = ERR_PROTO;
+                else if (obj == ctx.function.proto("syntaxErr")) prototype = SYNTAX_ERR_PROTO;
+                else if (obj == ctx.function.proto("typeErr")) prototype = TYPE_ERR_PROTO;
+                else if (obj == ctx.function.proto("rangeErr")) prototype = RANGE_ERR_PROTO;
                 else prototype = obj;
             }
             else prototype = obj;
@@ -200,19 +203,19 @@ public class ObjectValue {
         return true;
     }
 
-    protected Property getProperty(CallContext ctx, Object key) throws InterruptedException {
+    protected Property getProperty(Context ctx, Object key) throws InterruptedException {
         if (properties.containsKey(key)) return properties.get(key);
         var proto = getPrototype(ctx);
         if (proto != null) return proto.getProperty(ctx, key);
         else return null;
     }
-    protected Object getField(CallContext ctx, Object key) throws InterruptedException {
+    protected Object getField(Context ctx, Object key) throws InterruptedException {
         if (values.containsKey(key)) return values.get(key);
         var proto = getPrototype(ctx);
         if (proto != null) return proto.getField(ctx, key);
         else return null;
     }
-    protected boolean setField(CallContext ctx, Object key, Object val) throws InterruptedException {
+    protected boolean setField(Context ctx, Object key, Object val) throws InterruptedException {
         if (val instanceof FunctionValue && ((FunctionValue)val).name.equals("")) {
             ((FunctionValue)val).name = Values.toString(ctx, key);
         }
@@ -220,15 +223,15 @@ public class ObjectValue {
         values.put(key, val);
         return true;
     }
-    protected void deleteField(CallContext ctx, Object key) throws InterruptedException {
+    protected void deleteField(Context ctx, Object key) throws InterruptedException {
         values.remove(key);
     }
-    protected boolean hasField(CallContext ctx, Object key) throws InterruptedException {
+    protected boolean hasField(Context ctx, Object key) throws InterruptedException {
         return values.containsKey(key);
     }
 
-    public final Object getMember(CallContext ctx, Object key, Object thisArg) throws InterruptedException {
-        key = Values.normalize(key);
+    public final Object getMember(Context ctx, Object key, Object thisArg) throws InterruptedException {
+        key = Values.normalize(ctx, key);
 
         if (key.equals("__proto__")) {
             var res = getPrototype(ctx);
@@ -239,21 +242,21 @@ public class ObjectValue {
 
         if (prop != null) {
             if (prop.getter == null) return null;
-            else return prop.getter.call(ctx, Values.normalize(thisArg));
+            else return prop.getter.call(ctx, Values.normalize(ctx, thisArg));
         }
         else return getField(ctx, key);
     }
-    public final Object getMember(CallContext ctx, Object key) throws InterruptedException {
+    public final Object getMember(Context ctx, Object key) throws InterruptedException {
         return getMember(ctx, key, this);
     }
 
-    public final boolean setMember(CallContext ctx, Object key, Object val, Object thisArg, boolean onlyProps) throws InterruptedException {
-        key = Values.normalize(key); val = Values.normalize(val);
+    public final boolean setMember(Context ctx, Object key, Object val, Object thisArg, boolean onlyProps) throws InterruptedException {
+        key = Values.normalize(ctx, key); val = Values.normalize(ctx, val);
 
         var prop = getProperty(ctx, key);
         if (prop != null) {
             if (prop.setter == null) return false;
-            prop.setter.call(ctx, Values.normalize(thisArg), val);
+            prop.setter.call(ctx, Values.normalize(ctx, thisArg), val);
             return true;
         }
         else if (onlyProps) return false;
@@ -266,21 +269,22 @@ public class ObjectValue {
         else if (nonWritableSet.contains(key)) return false;
         else return setField(ctx, key, val);
     }
-    public final boolean setMember(CallContext ctx, Object key, Object val, boolean onlyProps) throws InterruptedException {
-        return setMember(ctx, Values.normalize(key), Values.normalize(val), this, onlyProps);
+    public final boolean setMember(Context ctx, Object key, Object val, boolean onlyProps) throws InterruptedException {
+        return setMember(ctx, Values.normalize(ctx, key), Values.normalize(ctx, val), this, onlyProps);
     }
 
-    public final boolean hasMember(CallContext ctx, Object key, boolean own) throws InterruptedException {
-        key = Values.normalize(key);
+    public final boolean hasMember(Context ctx, Object key, boolean own) throws InterruptedException {
+        key = Values.normalize(ctx, key);
 
         if (key != null && key.equals("__proto__")) return true;
         if (hasField(ctx, key)) return true;
         if (properties.containsKey(key)) return true;
         if (own) return false;
-        return prototype != null && getPrototype(ctx).hasMember(ctx, key, own);
+        var proto = getPrototype(ctx);
+        return proto != null && proto.hasMember(ctx, key, own);
     }
-    public final boolean deleteMember(CallContext ctx, Object key) throws InterruptedException {
-        key = Values.normalize(key);
+    public final boolean deleteMember(Context ctx, Object key) throws InterruptedException {
+        key = Values.normalize(ctx, key);
 
         if (!memberConfigurable(key)) return false;
         properties.remove(key);
@@ -290,22 +294,22 @@ public class ObjectValue {
         return true;
     }
 
-    public final ObjectValue getMemberDescriptor(CallContext ctx, Object key) throws InterruptedException {
-        key = Values.normalize(key);
+    public final ObjectValue getMemberDescriptor(Context ctx, Object key) throws InterruptedException {
+        key = Values.normalize(ctx, key);
 
         var prop = properties.get(key);
         var res = new ObjectValue();
 
-        res.defineProperty("configurable", memberConfigurable(key));
-        res.defineProperty("enumerable", memberEnumerable(key));
+        res.defineProperty(ctx, "configurable", memberConfigurable(key));
+        res.defineProperty(ctx, "enumerable", memberEnumerable(key));
 
         if (prop != null) {
-            res.defineProperty("get", prop.getter);
-            res.defineProperty("set", prop.setter);
+            res.defineProperty(ctx, "get", prop.getter);
+            res.defineProperty(ctx, "set", prop.setter);
         }
         else if (hasField(ctx, key)) {
-            res.defineProperty("value", values.get(key));
-            res.defineProperty("writable", memberWritable(key));
+            res.defineProperty(ctx, "value", values.get(key));
+            res.defineProperty(ctx, "writable", memberWritable(key));
         }
         else return null;
         return res;
@@ -326,10 +330,10 @@ public class ObjectValue {
         return res;
     }
 
-    public ObjectValue(Map<?, ?> values) {
+    public ObjectValue(Context ctx, Map<?, ?> values) {
         this(PlaceholderProto.OBJECT);
         for (var el : values.entrySet()) {
-            defineProperty(el.getKey(), el.getValue());
+            defineProperty(ctx, el.getKey(), el.getValue());
         }
     }
     public ObjectValue(PlaceholderProto proto) {

src/me/topchetoeu/jscript/engine/values/Values.java

@@ -10,7 +10,7 @@ import java.util.Iterator;
 import java.util.List;
 import java.util.Map;
 
-import me.topchetoeu.jscript.engine.CallContext;
+import me.topchetoeu.jscript.engine.Context;
 import me.topchetoeu.jscript.engine.Operation;
 import me.topchetoeu.jscript.engine.frame.ConvertHint;
 import me.topchetoeu.jscript.exceptions.EngineException;
@@ -65,7 +65,7 @@ public class Values {
         return "object";
     }
 
-    private static Object tryCallConvertFunc(CallContext ctx, Object obj, String name) throws InterruptedException {
+    private static Object tryCallConvertFunc(Context ctx, Object obj, String name) throws InterruptedException {
         var func = getMember(ctx, obj, name);
 
         if (func != null) {
@@ -87,8 +87,8 @@ public class Values {
             obj == NULL;
     }
 
-    public static Object toPrimitive(CallContext ctx, Object obj, ConvertHint hint) throws InterruptedException {
-        obj = normalize(obj);
+    public static Object toPrimitive(Context ctx, Object obj, ConvertHint hint) throws InterruptedException {
+        obj = normalize(ctx, obj);
         if (isPrimitive(obj)) return obj;
 
         var first = hint == ConvertHint.VALUEOF ? "valueOf" : "toString";
@@ -112,7 +112,7 @@ public class Values {
         if (obj instanceof Boolean) return (Boolean)obj;
         return true;
     }
-    public static double toNumber(CallContext ctx, Object obj) throws InterruptedException {
+    public static double toNumber(Context ctx, Object obj) throws InterruptedException {
         var val = toPrimitive(ctx, obj, ConvertHint.VALUEOF);
 
         if (val instanceof Number) return number(obj);
@@ -125,7 +125,7 @@ public class Values {
         }
         return Double.NaN;
     }
-    public static String toString(CallContext ctx, Object obj) throws InterruptedException {
+    public static String toString(Context ctx, Object obj) throws InterruptedException {
         var val = toPrimitive(ctx, obj, ConvertHint.VALUEOF);
 
         if (val == null) return "undefined";
@@ -146,47 +146,47 @@ public class Values {
         return "Unknown value";
     }
 
-    public static Object add(CallContext ctx, Object a, Object b) throws InterruptedException {
+    public static Object add(Context ctx, Object a, Object b) throws InterruptedException {
         if (a instanceof String || b instanceof String) return toString(ctx, a) + toString(ctx, b);
         else return toNumber(ctx, a) + toNumber(ctx, b);
     }
-    public static double subtract(CallContext ctx, Object a, Object b) throws InterruptedException {
+    public static double subtract(Context ctx, Object a, Object b) throws InterruptedException {
         return toNumber(ctx, a) - toNumber(ctx, b);
     }
-    public static double multiply(CallContext ctx, Object a, Object b) throws InterruptedException {
+    public static double multiply(Context ctx, Object a, Object b) throws InterruptedException {
         return toNumber(ctx, a) * toNumber(ctx, b);
     }
-    public static double divide(CallContext ctx, Object a, Object b) throws InterruptedException {
+    public static double divide(Context ctx, Object a, Object b) throws InterruptedException {
         return toNumber(ctx, a) / toNumber(ctx, b);
     }
-    public static double modulo(CallContext ctx, Object a, Object b) throws InterruptedException {
+    public static double modulo(Context ctx, Object a, Object b) throws InterruptedException {
         return toNumber(ctx, a) % toNumber(ctx, b);
     }
     
-    public static double negative(CallContext ctx, Object obj) throws InterruptedException {
+    public static double negative(Context ctx, Object obj) throws InterruptedException {
         return -toNumber(ctx, obj);
     }
 
-    public static int and(CallContext ctx, Object a, Object b) throws InterruptedException {
+    public static int and(Context ctx, Object a, Object b) throws InterruptedException {
         return (int)toNumber(ctx, a) & (int)toNumber(ctx, b);
     }
-    public static int or(CallContext ctx, Object a, Object b) throws InterruptedException {
+    public static int or(Context ctx, Object a, Object b) throws InterruptedException {
         return (int)toNumber(ctx, a) | (int)toNumber(ctx, b);
     }
-    public static int xor(CallContext ctx, Object a, Object b) throws InterruptedException {
+    public static int xor(Context ctx, Object a, Object b) throws InterruptedException {
         return (int)toNumber(ctx, a) ^ (int)toNumber(ctx, b);
     }
-    public static int bitwiseNot(CallContext ctx, Object obj) throws InterruptedException {
+    public static int bitwiseNot(Context ctx, Object obj) throws InterruptedException {
         return ~(int)toNumber(ctx, obj);
     }
 
-    public static int shiftLeft(CallContext ctx, Object a, Object b) throws InterruptedException {
+    public static int shiftLeft(Context ctx, Object a, Object b) throws InterruptedException {
         return (int)toNumber(ctx, a) << (int)toNumber(ctx, b);
     }
-    public static int shiftRight(CallContext ctx, Object a, Object b) throws InterruptedException {
+    public static int shiftRight(Context ctx, Object a, Object b) throws InterruptedException {
         return (int)toNumber(ctx, a) >> (int)toNumber(ctx, b);
     }
-    public static long unsignedShiftRight(CallContext ctx, Object a, Object b) throws InterruptedException {
+    public static long unsignedShiftRight(Context ctx, Object a, Object b) throws InterruptedException {
         long _a = (long)toNumber(ctx, a);
         long _b = (long)toNumber(ctx, b);
 
@@ -195,7 +195,7 @@ public class Values {
         return _a >>> _b;
     }
 
-    public static int compare(CallContext ctx, Object a, Object b) throws InterruptedException {
+    public static int compare(Context ctx, Object a, Object b) throws InterruptedException {
         a = toPrimitive(ctx, a, ConvertHint.VALUEOF);
         b = toPrimitive(ctx, b, ConvertHint.VALUEOF);
 
@@ -207,7 +207,7 @@ public class Values {
         return !toBoolean(obj);
     }
 
-    public static boolean isInstanceOf(CallContext ctx, Object obj, Object proto) throws InterruptedException {
+    public static boolean isInstanceOf(Context ctx, Object obj, Object proto) throws InterruptedException {
         if (obj == null || obj == NULL || proto == null || proto == NULL) return false;
         var val = getPrototype(ctx, obj);
 
@@ -219,7 +219,7 @@ public class Values {
         return false;
     }
 
-    public static Object operation(CallContext ctx, Operation op, Object... args) throws InterruptedException {
+    public static Object operation(Context ctx, Operation op, Object ...args) throws InterruptedException {
         switch (op) {
             case ADD: return add(ctx, args[0], args[1]);
             case SUBTRACT: return subtract(ctx, args[0], args[1]);
@@ -231,8 +231,8 @@ public class Values {
             case OR: return or(ctx, args[0], args[1]);
             case XOR: return xor(ctx, args[0], args[1]);
 
-            case EQUALS: return strictEquals(args[0], args[1]);
-            case NOT_EQUALS: return !strictEquals(args[0], args[1]);
+            case EQUALS: return strictEquals(ctx, args[0], args[1]);
+            case NOT_EQUALS: return !strictEquals(ctx, args[0], args[1]);
             case LOOSE_EQUALS: return looseEqual(ctx, args[0], args[1]);
             case LOOSE_NOT_EQUALS: return !looseEqual(ctx, args[0], args[1]);
 
@@ -260,8 +260,8 @@ public class Values {
         }
     }
 
-    public static Object getMember(CallContext ctx, Object obj, Object key) throws InterruptedException {
-        obj = normalize(obj); key = normalize(key);
+    public static Object getMember(Context ctx, Object obj, Object key) throws InterruptedException {
+        obj = normalize(ctx, obj); key = normalize(ctx, key);
         if (obj == null) throw new IllegalArgumentException("Tried to access member of undefined.");
         if (obj == NULL) throw new IllegalArgumentException("Tried to access member of null.");
         if (isObject(obj)) return object(obj).getMember(ctx, key);
@@ -280,8 +280,8 @@ public class Values {
         else if (key != null && key.equals("__proto__")) return proto;
         else return proto.getMember(ctx, key, obj);
     }
-    public static boolean setMember(CallContext ctx, Object obj, Object key, Object val) throws InterruptedException {
-        obj = normalize(obj); key = normalize(key); val = normalize(val);
+    public static boolean setMember(Context ctx, Object obj, Object key, Object val) throws InterruptedException {
+        obj = normalize(ctx, obj); key = normalize(ctx, key); val = normalize(ctx, val);
         if (obj == null) throw EngineException.ofType("Tried to access member of undefined.");
         if (obj == NULL) throw EngineException.ofType("Tried to access member of null.");
         if (key.equals("__proto__")) return setPrototype(ctx, obj, val);
@@ -290,9 +290,9 @@ public class Values {
         var proto = getPrototype(ctx, obj);
         return proto.setMember(ctx, key, val, obj, true);
     }
-    public static boolean hasMember(CallContext ctx, Object obj, Object key, boolean own) throws InterruptedException {
+    public static boolean hasMember(Context ctx, Object obj, Object key, boolean own) throws InterruptedException {
         if (obj == null || obj == NULL) return false;
-        obj = normalize(obj); key = normalize(key);
+        obj = normalize(ctx, obj); key = normalize(ctx, key);
 
         if (key.equals("__proto__")) return true;
         if (isObject(obj)) return object(obj).hasMember(ctx, key, own);
@@ -308,31 +308,31 @@ public class Values {
         var proto = getPrototype(ctx, obj);
         return proto != null && proto.hasMember(ctx, key, own);
     }
-    public static boolean deleteMember(CallContext ctx, Object obj, Object key) throws InterruptedException {
+    public static boolean deleteMember(Context ctx, Object obj, Object key) throws InterruptedException {
         if (obj == null || obj == NULL) return false;
-        obj = normalize(obj); key = normalize(key);
+        obj = normalize(ctx, obj); key = normalize(ctx, key);
 
         if (isObject(obj)) return object(obj).deleteMember(ctx, key);
         else return false;
     }
-    public static ObjectValue getPrototype(CallContext ctx, Object obj) throws InterruptedException {
+    public static ObjectValue getPrototype(Context ctx, Object obj) throws InterruptedException {
         if (obj == null || obj == NULL) return null;
-        obj = normalize(obj);
+        obj = normalize(ctx, obj);
         if (isObject(obj)) return object(obj).getPrototype(ctx);
         if (ctx == null) return null;
 
-        if (obj instanceof String) return ctx.engine().stringProto();
-        else if (obj instanceof Number) return ctx.engine().numberProto();
-        else if (obj instanceof Boolean) return ctx.engine().booleanProto();
-        else if (obj instanceof Symbol) return ctx.engine().symbolProto();
+        if (obj instanceof String) return ctx.function.proto("string");
+        else if (obj instanceof Number) return ctx.function.proto("number");
+        else if (obj instanceof Boolean) return ctx.function.proto("bool");
+        else if (obj instanceof Symbol) return ctx.function.proto("symbol");
 
         return null;
     }
-    public static boolean setPrototype(CallContext ctx, Object obj, Object proto) throws InterruptedException {
-        obj = normalize(obj); proto = normalize(proto);
+    public static boolean setPrototype(Context ctx, Object obj, Object proto) throws InterruptedException {
+        obj = normalize(ctx, obj);
         return isObject(obj) && object(obj).setPrototype(ctx, proto);
     }
-    public static List<Object> getMembers(CallContext ctx, Object obj, boolean own, boolean includeNonEnumerable) throws InterruptedException {  
+    public static List<Object> getMembers(Context ctx, Object obj, boolean own, boolean includeNonEnumerable) throws InterruptedException {  
         List<Object> res = new ArrayList<>();
 
         if (isObject(obj)) res = object(obj).keys(includeNonEnumerable);
@@ -353,14 +353,14 @@ public class Values {
         return res;
     }
 
-    public static Object call(CallContext ctx, Object func, Object thisArg, Object ...args) throws InterruptedException {
+    public static Object call(Context ctx, Object func, Object thisArg, Object ...args) throws InterruptedException {
         if (!isFunction(func))
             throw EngineException.ofType("Tried to call a non-function value.");
         return function(func).call(ctx, thisArg, args);
     }
 
-    public static boolean strictEquals(Object a, Object b) {
-        a = normalize(a); b = normalize(b);
+    public static boolean strictEquals(Context ctx, Object a, Object b) {
+        a = normalize(ctx, a); b = normalize(ctx, b);
 
         if (a == null || b == null) return a == null && b == null;
         if (isNan(a) || isNan(b)) return false;
@@ -369,8 +369,8 @@ public class Values {
 
         return a == b || a.equals(b);
     }
-    public static boolean looseEqual(CallContext ctx, Object a, Object b) throws InterruptedException {
-        a = normalize(a); b = normalize(b);
+    public static boolean looseEqual(Context ctx, Object a, Object b) throws InterruptedException {
+        a = normalize(ctx, a); b = normalize(ctx, b);
 
         // In loose equality, null is equivalent to undefined
         if (a == NULL) a = null;
@@ -387,13 +387,13 @@ public class Values {
         // Compare symbols by reference
         if (a instanceof Symbol || b instanceof Symbol) return a == b;
         if (a instanceof Boolean || b instanceof Boolean) return toBoolean(a) == toBoolean(b);
-        if (a instanceof Number || b instanceof Number) return strictEquals(toNumber(ctx, a), toNumber(ctx, b));
+        if (a instanceof Number || b instanceof Number) return strictEquals(ctx, toNumber(ctx, a), toNumber(ctx, b));
 
         // Default to strings
         return toString(ctx, a).equals(toString(ctx, b));
     }
 
-    public static Object normalize(Object val) {
+    public static Object normalize(Context ctx, Object val) {
         if (val instanceof Number) return number(val);
         if (isPrimitive(val) || val instanceof ObjectValue) return val;
         if (val instanceof Character) return val + "";
@@ -402,7 +402,7 @@ public class Values {
             var res = new ObjectValue();
 
             for (var entry : ((Map<?, ?>)val).entrySet()) {
-                res.defineProperty(entry.getKey(), entry.getValue());
+                res.defineProperty(ctx, entry.getKey(), entry.getValue());
             }
 
             return res;
@@ -412,17 +412,22 @@ public class Values {
             var res = new ArrayValue();
 
             for (var entry : ((Iterable<?>)val)) {
-                res.set(res.size(), entry);
+                res.set(ctx, res.size(), entry);
             }
 
             return res;
         }
 
+        if (val instanceof Class) {
+            if (ctx == null) return null;
+            else return ctx.function.wrappersProvider.getConstr((Class<?>)val);
+        }
+
         return new NativeWrapper(val);
     }
 
     @SuppressWarnings("unchecked")
-    public static <T> T convert(CallContext ctx, Object obj, Class<T> clazz) throws InterruptedException {
+    public static <T> T convert(Context ctx, Object obj, Class<T> clazz) throws InterruptedException {
         if (clazz == Void.class) return null;
         if (clazz == null || clazz == Object.class) return (T)obj;
 
@@ -490,10 +495,10 @@ public class Values {
         throw err;
     }
 
-    public static Iterable<Object> toJavaIterable(CallContext ctx, Object obj) throws InterruptedException {
+    public static Iterable<Object> toJavaIterable(Context ctx, Object obj) throws InterruptedException {
         return () -> {
             try {
-                var constr = getMember(ctx, ctx.engine().symbolProto(), "constructor");
+                var constr = getMember(ctx, ctx.function.proto("symbol"), "constructor");
                 var symbol = getMember(ctx, constr, "iterator");
 
                 var iteratorFunc = getMember(ctx, obj, symbol);
@@ -557,25 +562,25 @@ public class Values {
         };
     }
 
-    public static ObjectValue fromJavaIterable(CallContext ctx, Iterable<?> iterable) throws InterruptedException {
+    public static ObjectValue fromJavaIterable(Context ctx, Iterable<?> iterable) throws InterruptedException {
         var res = new ObjectValue();
         var it = iterable.iterator();
 
         try {
-            var key = getMember(ctx, getMember(ctx, ctx.engine().symbolProto(), "constructor"), "iterable");
-            res.defineProperty(key, new NativeFunction("", (_ctx, thisArg, args) -> fromJavaIterable(ctx, iterable)));
+            var key = getMember(ctx, getMember(ctx, ctx.function.proto("symbol"), "constructor"), "iterator");
+            res.defineProperty(ctx, key, new NativeFunction("", (_ctx, thisArg, args) -> thisArg));
         }
         catch (IllegalArgumentException | NullPointerException e) { }
 
-        res.defineProperty("next", new NativeFunction("", (_ctx, _th, _args) -> {
-            if (!it.hasNext()) return new ObjectValue(Map.of("done", true));
-            else return new ObjectValue(Map.of("value", it.next()));
+        res.defineProperty(ctx, "next", new NativeFunction("", (_ctx, _th, _args) -> {
+            if (!it.hasNext()) return new ObjectValue(ctx, Map.of("done", true));
+            else return new ObjectValue(ctx, Map.of("value", it.next()));
         }));
 
         return res;
     }
 
-    private static void printValue(CallContext ctx, Object val, HashSet<Object> passed, int tab) throws InterruptedException {
+    private static void printValue(Context ctx, Object val, HashSet<Object> passed, int tab) throws InterruptedException {
         if (passed.contains(val)) {
             System.out.print("[circular]");
             return;
@@ -647,7 +652,7 @@ public class Values {
         else if (val instanceof String) System.out.print("'" + val + "'");
         else System.out.print(Values.toString(ctx, val));
     }
-    public static void printValue(CallContext ctx, Object val) throws InterruptedException {
+    public static void printValue(Context ctx, Object val) throws InterruptedException {
         printValue(ctx, val, new HashSet<>(), 0);
     }
 }

src/me/topchetoeu/jscript/exceptions/EngineException.java

@@ -4,7 +4,7 @@ import java.util.ArrayList;
 import java.util.List;
 
 import me.topchetoeu.jscript.Location;
-import me.topchetoeu.jscript.engine.CallContext;
+import me.topchetoeu.jscript.engine.Context;
 import me.topchetoeu.jscript.engine.values.ObjectValue;
 import me.topchetoeu.jscript.engine.values.Values;
 import me.topchetoeu.jscript.engine.values.ObjectValue.PlaceholderProto;
@@ -28,9 +28,14 @@ public class EngineException extends RuntimeException {
         return this;
     }
 
-    public String toString(CallContext ctx) throws InterruptedException {
+    public String toString(Context ctx) throws InterruptedException {
         var ss = new StringBuilder();
-        ss.append(Values.toString(ctx, value)).append('\n');
+        try {
+            ss.append(Values.toString(ctx, value)).append('\n');
+        }
+        catch (EngineException e) {
+            ss.append("[Error while stringifying]\n");
+        }
         for (var line : stackTrace) {
             ss.append("    ").append(line).append('\n');
         }
@@ -41,7 +46,7 @@ public class EngineException extends RuntimeException {
 
     private static Object err(String msg, PlaceholderProto proto) {
         var res = new ObjectValue(proto);
-        res.defineProperty("message", msg);
+        res.defineProperty(null, "message", msg);
         return res;
     }
 

src/me/topchetoeu/jscript/filesystem/File.java

@@ -1,22 +0,0 @@
-package me.topchetoeu.jscript.filesystem;
-
-import java.io.IOException;
-
-public interface File {
-    int read(byte[] buff) throws IOException;
-    void write(byte[] buff) throws IOException;
-    long tell() throws IOException;
-    void seek(long offset, int pos) throws IOException;
-    void close() throws IOException;
-    Permissions perms();
-
-    default String readToString() throws IOException {
-        seek(0, 2);
-        long len = tell();
-        if (len < 0) return null;
-        seek(0, 0);
-        byte[] res = new byte[(int)len];
-        if (read(res) < 0) return null;
-        return new String(res);
-    }
-}

src/me/topchetoeu/jscript/filesystem/Filesystem.java

@@ -1,17 +0,0 @@
-package me.topchetoeu.jscript.filesystem;
-
-import java.io.IOException;
-import java.nio.file.Path;
-
-public interface Filesystem extends PermissionsProvider {
-    public static enum EntryType {
-        NONE,
-        FILE,
-        FOLDER,
-    }
-    
-    File open(Path path) throws IOException;
-    EntryType type(Path path);
-    boolean mkdir(Path path);
-    boolean rm(Path path) throws IOException;
-}

src/me/topchetoeu/jscript/filesystem/InaccessibleFile.java

@@ -1,27 +0,0 @@
-package me.topchetoeu.jscript.filesystem;
-
-import java.io.IOException;
-
-public class InaccessibleFile implements File {
-    @Override
-    public int read(byte[] buff) throws IOException {
-        return -1;
-    }
-    @Override
-    public void write(byte[] buff) throws IOException {
-    }
-    @Override
-    public long tell() throws IOException {
-        return -1;
-    }
-    @Override
-    public void seek(long offset, int pos) throws IOException {
-    }
-    @Override
-    public void close() throws IOException {
-    }
-    @Override
-    public Permissions perms() {
-        return Permissions.NONE;
-    }
-}

src/me/topchetoeu/jscript/filesystem/MemoryFile.java

@@ -1,51 +0,0 @@
-package me.topchetoeu.jscript.filesystem;
-
-import java.io.IOException;
-
-public class MemoryFile implements File {
-    public byte[] data;
-    private int ptr = 0;
-
-    @Override
-    public void close() {
-        data = null;
-        ptr = -1;
-    }
-
-    @Override
-    public int read(byte[] buff) throws IOException {
-        if (data == null) return -1;
-        if (ptr == data.length) return -1;
-        int n = Math.min(buff.length, data.length - ptr);
-        System.arraycopy(data, ptr, buff, 0, n);
-        return n;
-    }
-
-    @Override
-    public void seek(long offset, int pos) throws IOException {
-        if (data == null) return;
-        if (pos == 0) ptr = (int)offset;
-        else if (pos == 1) ptr += (int)offset;
-        else ptr = data.length - (int)offset;
-
-        ptr = (int)Math.max(Math.min(ptr, data.length), 0);
-    }
-
-    @Override
-    public long tell() throws IOException {
-        if (data == null) return -1;
-        return ptr;
-    }
-
-    @Override
-    public void write(byte[] buff) throws IOException { }
-    @Override
-    public Permissions perms() {
-        if (data == null) return Permissions.NONE;
-        else return Permissions.READ;
-    }
-
-    public MemoryFile(byte[] data) {
-        this.data = data;
-    }
-}

src/me/topchetoeu/jscript/filesystem/Permissions.java

@@ -1,17 +0,0 @@
-package me.topchetoeu.jscript.filesystem;
-
-public enum Permissions {
-    NONE("", false, false),
-    READ("r", true, false),
-    READ_WRITE("rw", true, true);
-
-    public final String readMode;
-    public final boolean readable;
-    public final boolean writable;
-
-    private Permissions(String mode, boolean r, boolean w) {
-        this.readMode = mode;
-        this.readable = r;
-        this.writable = w;
-    }
-}

src/me/topchetoeu/jscript/filesystem/PermissionsProvider.java

@@ -1,7 +0,0 @@
-package me.topchetoeu.jscript.filesystem;
-
-import java.nio.file.Path;
-
-public interface PermissionsProvider {
-    Permissions perms(Path file);
-}

src/me/topchetoeu/jscript/filesystem/PhysicalFile.java

@@ -1,53 +0,0 @@
-package me.topchetoeu.jscript.filesystem;
-
-import java.io.IOException;
-import java.io.RandomAccessFile;
-import java.nio.file.Path;
-
-public class PhysicalFile implements File {
-    private RandomAccessFile file;
-    private Permissions perms;
-
-    @Override
-    public int read(byte[] buff) throws IOException {
-        if (!perms.readable) return -1;
-        return file.read(buff);
-    }
-    @Override
-    public void write(byte[] buff) throws IOException {
-        if (!perms.writable) return;
-        file.write(buff);
-    }
-    @Override
-    public long tell() throws IOException {
-        if (!perms.readable) return -1;
-        return file.getFilePointer();
-    }
-    @Override
-    public void seek(long offset, int pos) throws IOException {
-        if (!perms.readable) return;
-        if (pos == 0) file.seek(offset);
-        else if (pos == 1) file.seek(tell() + offset);
-        else file.seek(file.length() + offset);
-    }
-    @Override
-    public void close() throws IOException {
-        if (!perms.readable) return;
-        file.close();
-        file = null;
-        perms = Permissions.NONE;
-    }
-    @Override
-    public Permissions perms() {
-        return perms;
-    }
-
-    public PhysicalFile(Path path, Permissions perms) throws IOException {
-        if (!path.toFile().canWrite() && perms.writable) perms = Permissions.READ;
-        if (!path.toFile().canRead() && perms.readable) perms = Permissions.NONE;
-
-        this.perms = perms;
-        if (perms == Permissions.NONE) this.file = null;
-        else this.file = new RandomAccessFile(path.toString(), perms.readMode);
-    }
-}

src/me/topchetoeu/jscript/filesystem/PhysicalFilesystem.java

@@ -1,75 +0,0 @@
-package me.topchetoeu.jscript.filesystem;
-
-import java.io.IOException;
-import java.nio.file.Files;
-import java.nio.file.Path;
-import java.util.stream.Collectors;
-
-public class PhysicalFilesystem implements Filesystem {
-    public final Path root;
-    public final PermissionsProvider perms;
-
-    private static Path joinPaths(Path root, Path file) {
-        if (file.isAbsolute()) file = file.getRoot().relativize(file);
-        file = file.normalize();
-
-        while (true) {
-            if (file.startsWith("..")) file = file.subpath(1, file.getNameCount());
-            else if (file.startsWith(".")) file = file.subpath(1, file.getNameCount());
-            else break;
-        }
-
-        return Path.of(root.toString(), file.toString());
-    }
-
-    @Override
-    public boolean mkdir(Path path) {
-        if (!perms(path).writable) return false;
-        path = joinPaths(root, path);
-        return path.toFile().mkdirs();
-    }
-    @Override
-    public File open(Path path) throws IOException {
-        var perms = perms(path);
-        if (perms == Permissions.NONE) return new InaccessibleFile();
-        path = joinPaths(root, path);
-
-        if (path.toFile().isDirectory()) {
-            return new MemoryFile(String.join("\n", Files.list(path).map(Path::toString).collect(Collectors.toList())).getBytes());
-        }
-        else if (path.toFile().isFile()) {
-            return new PhysicalFile(path, perms);
-        }
-        else return new InaccessibleFile();
-    }
-    @Override
-    public boolean rm(Path path) {
-        if (!perms(path).writable) return false;
-        return joinPaths(root, path).toFile().delete();
-    }
-    @Override
-    public EntryType type(Path path) {
-        if (!perms(path).readable) return EntryType.NONE;
-        path = joinPaths(root, path);
-
-        if (!path.toFile().exists()) return EntryType.NONE;
-        if (path.toFile().isFile()) return EntryType.FILE;
-        else return EntryType.FOLDER;
-
-    }
-    @Override
-    public Permissions perms(Path path) {
-        path = joinPaths(root, path);
-        var res = perms.perms(path);
-
-        if (!path.toFile().canWrite() && res.writable) res = Permissions.READ;
-        if (!path.toFile().canRead() && res.readable) res = Permissions.NONE;
-
-        return res;
-    }
-
-    public PhysicalFilesystem(Path root, PermissionsProvider perms) {
-        this.root = root;
-        this.perms = perms;
-    }
-}

src/me/topchetoeu/jscript/interop/NativeTypeRegister.java

@@ -3,12 +3,13 @@ package me.topchetoeu.jscript.interop;
 import java.lang.reflect.Modifier;
 import java.util.HashMap;
 
+import me.topchetoeu.jscript.engine.WrappersProvider;
 import me.topchetoeu.jscript.engine.values.FunctionValue;
 import me.topchetoeu.jscript.engine.values.NativeFunction;
 import me.topchetoeu.jscript.engine.values.ObjectValue;
 import me.topchetoeu.jscript.exceptions.EngineException;
 
-public class NativeTypeRegister {
+public class NativeTypeRegister implements WrappersProvider {
     private final HashMap<Class<?>, FunctionValue> constructors = new HashMap<>();
     private final HashMap<Class<?>, ObjectValue> prototypes = new HashMap<>();
 
@@ -25,7 +26,7 @@ public class NativeTypeRegister {
                 var val = target.values.get(name);
 
                 if (name.equals("")) name = method.getName();
-                if (!(val instanceof OverloadFunction)) target.defineProperty(name, val = new OverloadFunction(name));
+                if (!(val instanceof OverloadFunction)) target.defineProperty(null, name, val = new OverloadFunction(name));
 
                 ((OverloadFunction)val).overloads.add(Overload.fromMethod(method));
             }
@@ -40,7 +41,7 @@ public class NativeTypeRegister {
                     else getter = new OverloadFunction("get " + name);
 
                     getter.overloads.add(Overload.fromMethod(method));
-                    target.defineProperty(name, getter, setter, true, true);
+                    target.defineProperty(null, name, getter, setter, true, true);
                 }
                 if (set != null) {
                     var name = set.value();
@@ -52,7 +53,7 @@ public class NativeTypeRegister {
                     else setter = new OverloadFunction("set " + name);
 
                     setter.overloads.add(Overload.fromMethod(method));
-                    target.defineProperty(name, getter, setter, true, true);
+                    target.defineProperty(null, name, getter, setter, true, true);
                 }
             }
         }
@@ -67,7 +68,7 @@ public class NativeTypeRegister {
                 if (name.equals("")) name = field.getName();
                 var getter = new OverloadFunction("get " + name).add(Overload.getterFromField(field));
                 var setter = new OverloadFunction("set " + name).add(Overload.setterFromField(field));
-                target.defineProperty(name, getter, setter, true, false);
+                target.defineProperty(null, name, getter, setter, true, false);
             }
         }
     }
@@ -80,11 +81,9 @@ public class NativeTypeRegister {
                 var name = nat.value();
                 if (name.equals("")) name = cl.getSimpleName();
 
-                var getter = new OverloadFunction("get " + name).add(Overload.getter(member ? clazz : null, (ctx, thisArg, args) -> {
-                    return ctx.engine().typeRegister().getConstr(cl);
-                }));
+                var getter = new NativeFunction("get " + name, (ctx, thisArg, args) -> cl);
 
-                target.defineProperty(name, getter, null, true, false);
+                target.defineProperty(null, name, getter, null, true, false);
             }
         }
     }

src/me/topchetoeu/jscript/interop/Overload.java

@@ -5,11 +5,11 @@ import java.lang.reflect.Field;
 import java.lang.reflect.Method;
 import java.lang.reflect.Modifier;
 
-import me.topchetoeu.jscript.engine.CallContext;
+import me.topchetoeu.jscript.engine.Context;
 
 public class Overload {
     public static interface OverloadRunner {
-        Object run(CallContext ctx, Object thisArg, Object[] args) throws
+        Object run(Context ctx, Object thisArg, Object[] args) throws
             InterruptedException,
             ReflectiveOperationException,
             IllegalArgumentException;

src/me/topchetoeu/jscript/interop/OverloadFunction.java

@@ -5,7 +5,7 @@ import java.lang.reflect.InvocationTargetException;
 import java.util.ArrayList;
 import java.util.List;
 
-import me.topchetoeu.jscript.engine.CallContext;
+import me.topchetoeu.jscript.engine.Context;
 import me.topchetoeu.jscript.engine.values.FunctionValue;
 import me.topchetoeu.jscript.engine.values.Values;
 import me.topchetoeu.jscript.exceptions.EngineException;
@@ -13,9 +13,9 @@ import me.topchetoeu.jscript.exceptions.EngineException;
 public class OverloadFunction extends FunctionValue {
     public final List<Overload> overloads = new ArrayList<>();
 
-    public Object call(CallContext ctx, Object thisArg, Object... args) throws InterruptedException {
+    public Object call(Context ctx, Object thisArg, Object ...args) throws InterruptedException {
         for (var overload : overloads) {
-            boolean consumesEngine = overload.params.length > 0 && overload.params[0] == CallContext.class;
+            boolean consumesEngine = overload.params.length > 0 && overload.params[0] == Context.class;
             int start = consumesEngine ? 1 : 0;
             int end = overload.params.length - (overload.variadic ? 1 : 0);
 
@@ -47,7 +47,7 @@ public class OverloadFunction extends FunctionValue {
             Object _this = overload.thisArg == null ? null : Values.convert(ctx, thisArg, overload.thisArg);
 
             try {
-                return Values.normalize(overload.runner.run(ctx, _this, newArgs));
+                return Values.normalize(ctx, overload.runner.run(ctx, _this, newArgs));
             }
             catch (InstantiationException e) {
                 throw EngineException.ofError("The class may not be instantiated.");

src/me/topchetoeu/jscript/parsing/ParseRes.java

@@ -68,7 +68,7 @@ public class ParseRes<T> {
     }
 
     @SafeVarargs
-    public static <T> ParseRes<? extends T> any(ParseRes<? extends T>... parsers) {
+    public static <T> ParseRes<? extends T> any(ParseRes<? extends T> ...parsers) {
         ParseRes<? extends T> best = null;
         ParseRes<? extends T> error = ParseRes.failed();
 
@@ -83,7 +83,7 @@ public class ParseRes<T> {
         else return error;
     }
     @SafeVarargs
-    public static <T> ParseRes<? extends T> first(String filename, List<Token> tokens, Map<String, Parser<T>> named, Parser<? extends T>... parsers) {
+    public static <T> ParseRes<? extends T> first(String filename, List<Token> tokens, Map<String, Parser<T>> named, Parser<? extends T> ...parsers) {
         ParseRes<? extends T> error = ParseRes.failed();
 
         for (var parser : parsers) {

src/me/topchetoeu/jscript/parsing/Parsing.java

@@ -13,8 +13,8 @@ import me.topchetoeu.jscript.compilation.VariableDeclareStatement.Pair;
 import me.topchetoeu.jscript.compilation.control.*;
 import me.topchetoeu.jscript.compilation.control.SwitchStatement.SwitchCase;
 import me.topchetoeu.jscript.compilation.values.*;
+import me.topchetoeu.jscript.engine.FunctionContext;
 import me.topchetoeu.jscript.engine.Operation;
-import me.topchetoeu.jscript.engine.scope.GlobalScope;
 import me.topchetoeu.jscript.engine.scope.ValueVariable;
 import me.topchetoeu.jscript.engine.values.CodeFunction;
 import me.topchetoeu.jscript.engine.values.Values;
@@ -1842,8 +1842,8 @@ public class Parsing {
         return list.toArray(Statement[]::new);
     }
 
-    public static CodeFunction compile(GlobalScope scope, Statement... statements) {
-        var target = scope.globalChild();
+    public static CodeFunction compile(FunctionContext environment, Statement ...statements) {
+        var target = environment.global.globalChild();
         var subscope = target.child();
         var res = new ArrayList<Instruction>();
         var body = new CompoundStatement(null, statements);
@@ -1870,14 +1870,14 @@ public class Parsing {
         }
         else res.add(Instruction.ret());
 
-        return new CodeFunction("", subscope.localsCount(), 0, scope, new ValueVariable[0], res.toArray(Instruction[]::new));
+        return new CodeFunction(environment, "", subscope.localsCount(), 0, new ValueVariable[0], res.toArray(Instruction[]::new));
     }
-    public static CodeFunction compile(GlobalScope scope, String filename, String raw) {
+    public static CodeFunction compile(FunctionContext environment, String filename, String raw) {
         try {
-            return compile(scope, parse(filename, raw));
+            return compile(environment, parse(filename, raw));
         }
         catch (SyntaxException e) {
-            return new CodeFunction(null, 2, 0, scope, new ValueVariable[0], new Instruction[] { Instruction.throwSyntax(e) });
+            return new CodeFunction(environment, null, 2, 0, new ValueVariable[0], new Instruction[] { Instruction.throwSyntax(e) });
         }
     }
 }

src/me/topchetoeu/jscript/polyfills/Date.java

@@ -3,7 +3,7 @@ package me.topchetoeu.jscript.polyfills;
 import java.util.Calendar;
 import java.util.TimeZone;
 
-import me.topchetoeu.jscript.engine.CallContext;
+import me.topchetoeu.jscript.engine.Context;
 import me.topchetoeu.jscript.engine.values.Values;
 import me.topchetoeu.jscript.interop.Native;
 
@@ -47,7 +47,7 @@ public class Date {
         return normal.get(Calendar.YEAR) - 1900;
     }
     @Native
-    public double setYear(CallContext ctx, Object val) throws InterruptedException {
+    public double setYear(Context ctx, Object val) throws InterruptedException {
         var real = Values.toNumber(ctx, val);
         if (real >= 0 && real <= 99) real = real + 1900;
         if (Double.isNaN(real)) invalidate();
@@ -139,7 +139,7 @@ public class Date {
     }
 
     @Native
-    public double setFullYear(CallContext ctx, Object val) throws InterruptedException {
+    public double setFullYear(Context ctx, Object val) throws InterruptedException {
         var real = Values.toNumber(ctx, val);
         if (Double.isNaN(real)) invalidate();
         else normal.set(Calendar.YEAR, (int)real);
@@ -147,7 +147,7 @@ public class Date {
         return getTime();
     }
     @Native
-    public double setMonth(CallContext ctx, Object val) throws InterruptedException {
+    public double setMonth(Context ctx, Object val) throws InterruptedException {
         var real = Values.toNumber(ctx, val);
         if (Double.isNaN(real)) invalidate();
         else normal.set(Calendar.MONTH, (int)real);
@@ -155,7 +155,7 @@ public class Date {
         return getTime();
     }
     @Native
-    public double setDate(CallContext ctx, Object val) throws InterruptedException {
+    public double setDate(Context ctx, Object val) throws InterruptedException {
         var real = Values.toNumber(ctx, val);
         if (Double.isNaN(real)) invalidate();
         else normal.set(Calendar.DAY_OF_MONTH, (int)real);
@@ -163,7 +163,7 @@ public class Date {
         return getTime();
     }
     @Native
-    public double setDay(CallContext ctx, Object val) throws InterruptedException {
+    public double setDay(Context ctx, Object val) throws InterruptedException {
         var real = Values.toNumber(ctx, val);
         if (Double.isNaN(real)) invalidate();
         else normal.set(Calendar.DAY_OF_WEEK, (int)real);
@@ -171,7 +171,7 @@ public class Date {
         return getTime();
     }
     @Native
-    public double setHours(CallContext ctx, Object val) throws InterruptedException {
+    public double setHours(Context ctx, Object val) throws InterruptedException {
         var real = Values.toNumber(ctx, val);
         if (Double.isNaN(real)) invalidate();
         else normal.set(Calendar.HOUR_OF_DAY, (int)real);
@@ -179,7 +179,7 @@ public class Date {
         return getTime();
     }
     @Native
-    public double setMinutes(CallContext ctx, Object val) throws InterruptedException {
+    public double setMinutes(Context ctx, Object val) throws InterruptedException {
         var real = Values.toNumber(ctx, val);
         if (Double.isNaN(real)) invalidate();
         else normal.set(Calendar.MINUTE, (int)real);
@@ -187,7 +187,7 @@ public class Date {
         return getTime();
     }
     @Native
-    public double setSeconds(CallContext ctx, Object val) throws InterruptedException {
+    public double setSeconds(Context ctx, Object val) throws InterruptedException {
         var real = Values.toNumber(ctx, val);
         if (Double.isNaN(real)) invalidate();
         else normal.set(Calendar.SECOND, (int)real);
@@ -195,7 +195,7 @@ public class Date {
         return getTime();
     }
     @Native
-    public double setMilliseconds(CallContext ctx, Object val) throws InterruptedException {
+    public double setMilliseconds(Context ctx, Object val) throws InterruptedException {
         var real = Values.toNumber(ctx, val);
         if (Double.isNaN(real)) invalidate();
         else normal.set(Calendar.MILLISECOND, (int)real);
@@ -204,7 +204,7 @@ public class Date {
     }
 
     @Native
-    public double setUTCFullYear(CallContext ctx, Object val) throws InterruptedException {
+    public double setUTCFullYear(Context ctx, Object val) throws InterruptedException {
         var real = Values.toNumber(ctx, val);
         if (Double.isNaN(real)) invalidate();
         else utc.set(Calendar.YEAR, (int)real);
@@ -212,7 +212,7 @@ public class Date {
         return getTime();
     }
     @Native
-    public double setUTCMonth(CallContext ctx, Object val) throws InterruptedException {
+    public double setUTCMonth(Context ctx, Object val) throws InterruptedException {
         var real = Values.toNumber(ctx, val);
         if (Double.isNaN(real)) invalidate();
         else utc.set(Calendar.MONTH, (int)real);
@@ -220,7 +220,7 @@ public class Date {
         return getTime();
     }
     @Native
-    public double setUTCDate(CallContext ctx, Object val) throws InterruptedException {
+    public double setUTCDate(Context ctx, Object val) throws InterruptedException {
         var real = Values.toNumber(ctx, val);
         if (Double.isNaN(real)) invalidate();
         else utc.set(Calendar.DAY_OF_MONTH, (int)real);
@@ -228,7 +228,7 @@ public class Date {
         return getTime();
     }
     @Native
-    public double setUTCDay(CallContext ctx, Object val) throws InterruptedException {
+    public double setUTCDay(Context ctx, Object val) throws InterruptedException {
         var real = Values.toNumber(ctx, val);
         if (Double.isNaN(real)) invalidate();
         else utc.set(Calendar.DAY_OF_WEEK, (int)real);
@@ -236,7 +236,7 @@ public class Date {
         return getTime();
     }
     @Native
-    public double setUTCHours(CallContext ctx, Object val) throws InterruptedException {
+    public double setUTCHours(Context ctx, Object val) throws InterruptedException {
         var real = Values.toNumber(ctx, val);
         if (Double.isNaN(real)) invalidate();
         else utc.set(Calendar.HOUR_OF_DAY, (int)real);
@@ -244,7 +244,7 @@ public class Date {
         return getTime();
     }
     @Native
-    public double setUTCMinutes(CallContext ctx, Object val) throws InterruptedException {
+    public double setUTCMinutes(Context ctx, Object val) throws InterruptedException {
         var real = Values.toNumber(ctx, val);
         if (Double.isNaN(real)) invalidate();
         else utc.set(Calendar.MINUTE, (int)real);
@@ -252,7 +252,7 @@ public class Date {
         return getTime();
     }
     @Native
-    public double setUTCSeconds(CallContext ctx, Object val) throws InterruptedException {
+    public double setUTCSeconds(Context ctx, Object val) throws InterruptedException {
         var real = Values.toNumber(ctx, val);
         if (Double.isNaN(real)) invalidate();
         else utc.set(Calendar.SECOND, (int)real);
@@ -260,7 +260,7 @@ public class Date {
         return getTime();
     }
     @Native
-    public double setUTCMilliseconds(CallContext ctx, Object val) throws InterruptedException {
+    public double setUTCMilliseconds(Context ctx, Object val) throws InterruptedException {
         var real = Values.toNumber(ctx, val);
         if (Double.isNaN(real)) invalidate();
         else utc.set(Calendar.MILLISECOND, (int)real);

src/me/topchetoeu/jscript/polyfills/GeneratorFunction.java

@@ -1,6 +1,6 @@
 package me.topchetoeu.jscript.polyfills;
 
-import me.topchetoeu.jscript.engine.CallContext;
+import me.topchetoeu.jscript.engine.Context;
 import me.topchetoeu.jscript.engine.frame.CodeFrame;
 import me.topchetoeu.jscript.engine.frame.Runners;
 import me.topchetoeu.jscript.engine.values.CodeFunction;
@@ -11,25 +11,25 @@ import me.topchetoeu.jscript.exceptions.EngineException;
 import me.topchetoeu.jscript.interop.Native;
 
 public class GeneratorFunction extends FunctionValue {
-    public final CodeFunction factory;
+    public final FunctionValue factory;
 
     public static class Generator {
         private boolean yielding = true;
         private boolean done = false;
         public CodeFrame frame;
 
-        private ObjectValue next(CallContext ctx, Object inducedValue, Object inducedReturn, Object inducedError) throws InterruptedException {
+        private ObjectValue next(Context ctx, Object inducedValue, Object inducedReturn, Object inducedError) throws InterruptedException {
             if (done) {
                 if (inducedError != Runners.NO_RETURN) throw new EngineException(inducedError);
                 var res = new ObjectValue();
-                res.defineProperty("done", true);
-                res.defineProperty("value", inducedReturn == Runners.NO_RETURN ? null : inducedReturn);
+                res.defineProperty(ctx, "done", true);
+                res.defineProperty(ctx, "value", inducedReturn == Runners.NO_RETURN ? null : inducedReturn);
                 return res;
             }
 
             Object res = null;
-            if (inducedValue != Runners.NO_RETURN) frame.push(inducedValue);
-            frame.start(ctx);
+            if (inducedValue != Runners.NO_RETURN) frame.push(ctx, inducedValue);
+            ctx.message.pushFrame(frame);
             yielding = false;
             while (!yielding) {
                 try {
@@ -46,27 +46,27 @@ public class GeneratorFunction extends FunctionValue {
                 }
             }
 
-            frame.end(ctx);
+            ctx.message.popFrame(frame);
             if (done) frame = null;
             else res = frame.pop();
 
             var obj = new ObjectValue();
-            obj.defineProperty("done", done);
-            obj.defineProperty("value", res);
+            obj.defineProperty(ctx, "done", done);
+            obj.defineProperty(ctx, "value", res);
             return obj;
         }
 
         @Native
-        public ObjectValue next(CallContext ctx, Object... args) throws InterruptedException {
+        public ObjectValue next(Context ctx, Object ...args) throws InterruptedException {
             if (args.length == 0) return next(ctx, Runners.NO_RETURN, Runners.NO_RETURN, Runners.NO_RETURN);
             else return next(ctx, args[0], Runners.NO_RETURN, Runners.NO_RETURN);
         }
         @Native("throw")
-        public ObjectValue _throw(CallContext ctx, Object error) throws InterruptedException {
+        public ObjectValue _throw(Context ctx, Object error) throws InterruptedException {
             return next(ctx, Runners.NO_RETURN, Runners.NO_RETURN, error);
         }
         @Native("return")
-        public ObjectValue _return(CallContext ctx, Object value) throws InterruptedException {
+        public ObjectValue _return(Context ctx, Object value) throws InterruptedException {
             return next(ctx, Runners.NO_RETURN, value, Runners.NO_RETURN);
         }
 
@@ -77,22 +77,22 @@ public class GeneratorFunction extends FunctionValue {
             return "Generator " + (done ? "[closed]" : "[suspended]");
         }
 
-        public Object yield(CallContext ctx, Object thisArg, Object[] args) {
+        public Object yield(Context ctx, Object thisArg, Object[] args) {
             this.yielding = true;
             return args.length > 0 ? args[0] : null;
         }
     }
 
     @Override
-    public Object call(CallContext _ctx, Object thisArg, Object... args) throws InterruptedException {
+    public Object call(Context ctx, Object thisArg, Object ...args) throws InterruptedException {
         var handler = new Generator();
-        var func = factory.call(_ctx, thisArg, new NativeFunction("yield", handler::yield));
+        var func = factory.call(ctx, thisArg, new NativeFunction("yield", handler::yield));
         if (!(func instanceof CodeFunction)) throw EngineException.ofType("Return value of argument must be a js function.");
-        handler.frame = new CodeFrame(thisArg, args, (CodeFunction)func);
+        handler.frame = new CodeFrame(ctx, thisArg, args, (CodeFunction)func);
         return handler;
     }
 
-    public GeneratorFunction(CodeFunction factory) {
+    public GeneratorFunction(FunctionValue factory) {
         super(factory.name, factory.length);
         this.factory = factory;
     }

src/me/topchetoeu/jscript/polyfills/Internals.java

@@ -1,150 +1,137 @@
 package me.topchetoeu.jscript.polyfills;
 
-import java.util.HashMap;
-
-import me.topchetoeu.jscript.engine.CallContext;
+import me.topchetoeu.jscript.engine.Context;
+import me.topchetoeu.jscript.engine.FunctionContext;
 import me.topchetoeu.jscript.engine.values.ArrayValue;
 import me.topchetoeu.jscript.engine.values.CodeFunction;
 import me.topchetoeu.jscript.engine.values.FunctionValue;
+import me.topchetoeu.jscript.engine.values.NativeFunction;
 import me.topchetoeu.jscript.engine.values.ObjectValue;
 import me.topchetoeu.jscript.engine.values.Symbol;
 import me.topchetoeu.jscript.engine.values.Values;
-import me.topchetoeu.jscript.exceptions.EngineException;
 import me.topchetoeu.jscript.interop.Native;
-import me.topchetoeu.jscript.interop.NativeGetter;
 
 public class Internals {
-    private HashMap<Integer, Thread> intervals = new HashMap<>();
-    private HashMap<Integer, Thread> timeouts = new HashMap<>();
-    private HashMap<String, Symbol> symbols = new HashMap<>();
-    private int nextId = 0;
-
-    @Native
-    public double parseFloat(CallContext ctx, Object val) throws InterruptedException {
-        return Values.toNumber(ctx, val);
-    }
-
-    @Native
-    public boolean isArr(Object val) {
-        return val instanceof ArrayValue;
-    }
-
-    @NativeGetter("symbolProto")
-    public ObjectValue symbolProto(CallContext ctx) {
-        return ctx.engine().symbolProto();
-    }
-    @Native
-    public final Object apply(CallContext ctx, FunctionValue func, Object th, ArrayValue args) throws InterruptedException {
-        return func.call(ctx, th, args.toArray());
-    }
-    @Native
-    public boolean defineProp(ObjectValue obj, Object key, FunctionValue getter, FunctionValue setter, boolean enumerable, boolean configurable) {
-        return obj.defineProperty(key, getter, setter, configurable, enumerable);
-    }
-    @Native
-    public boolean defineField(ObjectValue obj, Object key, Object val, boolean writable, boolean enumerable, boolean configurable) {
-        return obj.defineProperty(key, val, writable, configurable, enumerable);
-    }
-
-    @Native
-    public int strlen(String str) {
-        return str.length();
-    }
-    @Native
-    public String substring(String str, int start, int end) {
-        if (start > end) return substring(str, end, start);
-
-        if (start < 0) start = 0;
-        if (start >= str.length()) return "";
-
-        if (end < 0) end = 0;
-        if (end > str.length()) end = str.length();
-
-        return str.substring(start, end);
-    }
-    @Native
-    public String toLower(String str) {
-        return str.toLowerCase();
-    }
-    @Native
-    public String toUpper(String str) {
-        return str.toUpperCase();
-    }
-    @Native
-    public int toCharCode(String str) {
-        return str.codePointAt(0);
-    }
-    @Native
-    public String fromCharCode(int code) {
-        return Character.toString((char)code);
-    }
-    @Native
-    public boolean startsWith(String str, String term, int offset) {
-        return str.startsWith(term, offset);
-    }
-    @Native
-    public boolean endsWith(String str, String term, int offset) {
-        try {
-            return str.substring(0, offset).endsWith(term);
+    @Native public void markSpecial(FunctionValue ...funcs) {
+        for (var func : funcs) {
+            func.special = true;
         }
-        catch (IndexOutOfBoundsException e) { return false; }
-
     }
-
-    @Native
-    public int setInterval(CallContext ctx, FunctionValue func, double delay) {
+    @Native public FunctionContext getEnv(Object func) {
+        if (func instanceof CodeFunction) return ((CodeFunction)func).environment;
+        else return null;
+    }
+    @Native public Object setEnv(Object func, FunctionContext env) {
+        if (func instanceof CodeFunction) ((CodeFunction)func).environment = env;
+        return func;
+    }
+    @Native public Object apply(Context ctx, FunctionValue func, Object thisArg, ArrayValue args) throws InterruptedException {
+        return func.call(ctx, thisArg, args.toArray());
+    }
+    @Native public FunctionValue delay(Context ctx, double delay, FunctionValue callback) throws InterruptedException {
         var thread = new Thread((Runnable)() -> {
             var ms = (long)delay;
             var ns = (int)((delay - ms) * 10000000);
 
-            while (true) {
-                try {
-                    Thread.sleep(ms, ns);
-                }
-                catch (InterruptedException e) { return; }
-
-                ctx.engine().pushMsg(false, func, ctx.data(), null);
-            }
-        });
-        thread.start();
-
-        intervals.put(++nextId, thread);
-
-        return nextId;
-    }
-    @Native
-    public int setTimeout(CallContext ctx, FunctionValue func, double delay) {
-        var thread = new Thread((Runnable)() -> {
-            var ms = (long)delay;
-            var ns = (int)((delay - ms) * 1000000);
-
             try {
                 Thread.sleep(ms, ns);
             }
             catch (InterruptedException e) { return; }
 
-            ctx.engine().pushMsg(false, func, ctx.data(), null);
+            ctx.message.engine.pushMsg(false, ctx.message, callback, null);
         });
         thread.start();
 
-        timeouts.put(++nextId, thread);
-
-        return nextId;
+        return new NativeFunction((_ctx, thisArg, args) -> {
+            thread.interrupt();
+            return null;
+        });
+    }
+    @Native public void pushMessage(Context ctx, boolean micro, FunctionValue func, Object thisArg, Object[] args) {
+        ctx.message.engine.pushMsg(micro, ctx.message, func, thisArg, args);
     }
 
-    @Native
-    public void clearInterval(int id) {
-        var thread = intervals.remove(id);
-        if (thread != null) thread.interrupt();
+    @Native public int strlen(String str) {
+        return str.length();
     }
-    @Native
-    public void clearTimeout(int id) {
-        var thread = timeouts.remove(id);
-        if (thread != null) thread.interrupt();
+    @Native("char") public int _char(String str) {
+        return str.charAt(0);
+    }
+    @Native public String stringFromChars(char[] str) {
+        return new String(str);
+    }
+    @Native public String stringFromStrings(String[] str) {
+        var res = new char[str.length];
+
+        for (var i = 0; i < str.length; i++) res[i] = str[i].charAt(0);
+
+        return stringFromChars(res);
+    }
+    @Native public Symbol symbol(String str) {
+        return new Symbol(str);
+    }
+    @Native public String symbolToString(Symbol str) {
+        return str.value;
     }
 
-    @Native
-    public void sort(CallContext ctx, ArrayValue arr, FunctionValue cmp) {
+    @Native public static void log(Context ctx, Object ...args) throws InterruptedException {
+        for (var arg : args) {
+            Values.printValue(ctx, arg);
+        }
+        System.out.println();
+    }
+
+    @Native public boolean isArray(Object obj) {
+        return obj instanceof ArrayValue;
+    }
+    @Native public GeneratorFunction generator(FunctionValue obj) {
+        return new GeneratorFunction(obj);
+    }
+
+    @Native public boolean defineField(Context ctx, ObjectValue obj, Object key, Object val, boolean writable, boolean enumerable, boolean configurable) {
+        return obj.defineProperty(ctx, key, val, writable, configurable, enumerable);
+    }
+    @Native public boolean defineProp(Context ctx, ObjectValue obj, Object key, FunctionValue getter, FunctionValue setter, boolean enumerable, boolean configurable) {
+        return obj.defineProperty(ctx, key, getter, setter, configurable, enumerable);
+    }
+
+    @Native public ArrayValue keys(Context ctx, Object obj, boolean onlyString) throws InterruptedException {
+        var res = new ArrayValue();
+
+        var i = 0;
+        var list = Values.getMembers(ctx, obj, true, false);
+
+        for (var el : list) res.set(ctx, i++, el);
+
+        return res;
+    }
+    @Native public ArrayValue ownPropKeys(Context ctx, Object obj, boolean symbols) throws InterruptedException {
+        var res = new ArrayValue();
+
+        if (Values.isObject(obj)) {
+            var i = 0;
+            var list = Values.object(obj).keys(true);
+
+            for (var el : list) res.set(ctx, i++, el);
+        }
+
+        return res;
+    }
+    @Native public ObjectValue ownProp(Context ctx, ObjectValue val, Object key) throws InterruptedException {
+        return val.getMemberDescriptor(ctx, key);
+    }
+    @Native public void lock(ObjectValue val, String type) {
+        switch (type) {
+            case "ext": val.preventExtensions(); break;
+            case "seal": val.seal(); break;
+            case "freeze": val.freeze(); break;
+        }
+    }
+    @Native public boolean extensible(ObjectValue val) {
+        return val.extensible();
+    }
+
+    @Native public void sort(Context ctx, ArrayValue arr, FunctionValue cmp) {
         arr.sort((a, b) -> {
             try {
                 var res = Values.toNumber(ctx, cmp.call(ctx, null, a, b));
@@ -158,109 +145,4 @@ public class Internals {
             }
         });
     }
-
-    @Native
-    public void special(FunctionValue... funcs) {
-        for (var func : funcs) {
-            func.special = true;
-        }
-    }
-
-    @Native
-    public Symbol symbol(String name, boolean unique) {
-        if (!unique && symbols.containsKey(name)) {
-            return symbols.get(name);
-        }
-        else {
-            var val = new Symbol(name);
-            if (!unique) symbols.put(name, val);
-            return val;
-        }
-    }
-    @Native
-    public String symStr(Symbol symbol) {
-        return symbol.value;
-    }
-
-    @Native
-    public void freeze(ObjectValue val) {
-        val.freeze();
-    }
-    @Native
-    public void seal(ObjectValue val) {
-        val.seal();
-    }
-    @Native
-    public void preventExtensions(ObjectValue val) {
-        val.preventExtensions();
-    }
-
-    @Native
-    public boolean extensible(Object val) {
-        return Values.isObject(val) && Values.object(val).extensible();
-    }
-
-    @Native
-    public ArrayValue keys(CallContext ctx, Object obj, boolean onlyString) throws InterruptedException {
-        var res = new ArrayValue();
-
-        var i = 0;
-        var list = Values.getMembers(ctx, obj, true, false);
-
-        for (var el : list) {
-            if (el instanceof Symbol && onlyString) continue;
-            res.set(i++, el);
-        }
-
-        return res;
-    }
-    @Native
-    public ArrayValue ownPropKeys(CallContext ctx, Object obj, boolean symbols) throws InterruptedException {
-        var res = new ArrayValue();
-
-        if (Values.isObject(obj)) {
-            var i = 0;
-            var list = Values.object(obj).keys(true);
-
-            for (var el : list) {
-                if (el instanceof Symbol == symbols) res.set(i++, el);
-            }
-        }
-
-        return res;
-    }
-    @Native
-    public ObjectValue ownProp(CallContext ctx, ObjectValue val, Object key) throws InterruptedException {
-        return val.getMemberDescriptor(ctx, key);
-    }
-
-    @Native
-    public Object require(CallContext ctx, Object name) throws InterruptedException {
-        var res = ctx.engine().modules().tryLoad(ctx, Values.toString(ctx, name));
-        if (res == null) throw EngineException.ofError("The module '" + name + "' doesn\'t exist.");
-        return res.exports();
-    }
-
-    @Native
-    public GeneratorFunction makeGenerator(FunctionValue func) {
-        if (func instanceof CodeFunction) return new GeneratorFunction((CodeFunction)func);
-        else throw EngineException.ofType("Can't create a generator with a non-js function.");
-    }
-
-    @NativeGetter("err")
-    public ObjectValue errProto(CallContext ctx) {
-        return ctx.engine.errorProto();
-    }
-    @NativeGetter("syntax")
-    public ObjectValue syntaxProto(CallContext ctx) {
-        return ctx.engine.syntaxErrorProto();
-    }
-    @NativeGetter("range")
-    public ObjectValue rangeProto(CallContext ctx) {
-        return ctx.engine.rangeErrorProto();
-    }
-    @NativeGetter("type")
-    public ObjectValue typeProto(CallContext ctx) {
-        return ctx.engine.typeErrorProto();
-    }
 }

src/me/topchetoeu/jscript/polyfills/JSON.java

@@ -3,7 +3,7 @@ package me.topchetoeu.jscript.polyfills;
 import java.util.HashSet;
 import java.util.stream.Collectors;
 
-import me.topchetoeu.jscript.engine.CallContext;
+import me.topchetoeu.jscript.engine.Context;
 import me.topchetoeu.jscript.engine.values.ArrayValue;
 import me.topchetoeu.jscript.engine.values.ObjectValue;
 import me.topchetoeu.jscript.engine.values.Values;
@@ -19,18 +19,18 @@ public class JSON {
         if (val.isBoolean()) return val.bool();
         if (val.isString()) return val.string();
         if (val.isNumber()) return val.number();
-        if (val.isList()) return ArrayValue.of(val.list().stream().map(JSON::toJS).collect(Collectors.toList()));
+        if (val.isList()) return ArrayValue.of(null, val.list().stream().map(JSON::toJS).collect(Collectors.toList()));
         if (val.isMap()) {
             var res = new ObjectValue();
             for (var el : val.map().entrySet()) {
-                res.defineProperty(el.getKey(), toJS(el.getValue()));
+                res.defineProperty(null, el.getKey(), toJS(el.getValue()));
             }
             return res;
         }
         if (val.isNull()) return Values.NULL;
         return null;
     }
-    private static JSONElement toJSON(CallContext ctx, Object val, HashSet<Object> prev) throws InterruptedException {
+    private static JSONElement toJSON(Context ctx, Object val, HashSet<Object> prev) throws InterruptedException {
         if (val instanceof Boolean) return JSONElement.bool((boolean)val);
         if (val instanceof Number) return JSONElement.number(((Number)val).doubleValue());
         if (val instanceof String) return JSONElement.string((String)val);
@@ -70,7 +70,7 @@ public class JSON {
     }
 
     @Native
-    public static Object parse(CallContext ctx, String val) throws InterruptedException {
+    public static Object parse(Context ctx, String val) throws InterruptedException {
         try {
             return toJS(me.topchetoeu.jscript.json.JSON.parse("<value>", val));
         }
@@ -79,7 +79,7 @@ public class JSON {
         }
     }
     @Native
-    public static String stringify(CallContext ctx, Object val) throws InterruptedException {
+    public static String stringify(Context ctx, Object val) throws InterruptedException {
         return me.topchetoeu.jscript.json.JSON.stringify(toJSON(ctx, val, new HashSet<>()));
     }
 }

src/me/topchetoeu/jscript/polyfills/Map.java

@@ -1,86 +0,0 @@
-package me.topchetoeu.jscript.polyfills;
-
-import java.util.LinkedHashMap;
-import java.util.stream.Collectors;
-
-import me.topchetoeu.jscript.engine.CallContext;
-import me.topchetoeu.jscript.engine.values.ArrayValue;
-import me.topchetoeu.jscript.engine.values.FunctionValue;
-import me.topchetoeu.jscript.engine.values.Values;
-import me.topchetoeu.jscript.interop.Native;
-import me.topchetoeu.jscript.interop.NativeGetter;
-
-public class Map {
-    private LinkedHashMap<Object, Object> objs = new LinkedHashMap<>();
-
-    @Native
-    public Object get(Object key) {
-        return objs.get(key);
-    }
-    @Native
-    public Map set(Object key, Object val) {
-        objs.put(key, val);
-        return this;
-    }
-    @Native
-    public boolean delete(Object key) {
-        if (objs.containsKey(key)) {
-            objs.remove(key);
-            return true;
-        }
-        else return false;
-    }
-    @Native
-    public boolean has(Object key) {
-        return objs.containsKey(key);
-    }
-
-    @Native
-    public void clear() {
-        objs.clear();
-    }
-
-    @Native
-    public void forEach(CallContext ctx, FunctionValue func, Object thisArg) throws InterruptedException {
-
-        for (var el : objs.entrySet().stream().collect(Collectors.toList())) {
-            func.call(ctx, thisArg, el.getValue(), el.getKey(), this);
-        }
-    }
-
-    @Native
-    public Object entries(CallContext ctx) throws InterruptedException {
-        return Values.fromJavaIterable(ctx, objs
-            .entrySet()
-            .stream()
-            .map(v -> new ArrayValue(v.getKey(), v.getValue()))
-            .collect(Collectors.toList())
-        );
-    }
-    @Native
-    public Object keys(CallContext ctx) throws InterruptedException {
-        return Values.fromJavaIterable(ctx, objs.keySet().stream().collect(Collectors.toList()));
-    }
-    @Native
-    public Object values(CallContext ctx) throws InterruptedException {
-        return Values.fromJavaIterable(ctx, objs.values().stream().collect(Collectors.toList()));
-    }
-
-    @NativeGetter("size")
-    public int size() {
-        return objs.size();
-    }
-
-    @Native
-    public Map(CallContext ctx, Object iterable) throws InterruptedException {
-        if (Values.isPrimitive(iterable)) return;
-
-        for (var val : Values.toJavaIterable(ctx, iterable)) {
-            var first = Values.getMember(ctx, val, 0);
-            var second = Values.getMember(ctx, val, 1);
-
-            set(first, second);
-        }
-    }
-    public Map() { }
-}

src/me/topchetoeu/jscript/polyfills/Math.java

@@ -1,6 +1,6 @@
 package me.topchetoeu.jscript.polyfills;
 
-import me.topchetoeu.jscript.engine.CallContext;
+import me.topchetoeu.jscript.engine.MessageContext;
 import me.topchetoeu.jscript.interop.Native;
 
 public class Math {
@@ -22,19 +22,19 @@ public class Math {
     public static final double LOG10E = java.lang.Math.log10(java.lang.Math.E);
 
     @Native
-    public static double asin(CallContext ctx, double x) throws InterruptedException {
+    public static double asin(MessageContext ctx, double x) throws InterruptedException {
         return java.lang.Math.asin(x);
     }
     @Native
-    public static double acos(CallContext ctx, double x) throws InterruptedException {
+    public static double acos(MessageContext ctx, double x) throws InterruptedException {
         return java.lang.Math.acos(x);
     }
     @Native
-    public static double atan(CallContext ctx, double x) throws InterruptedException {
+    public static double atan(MessageContext ctx, double x) throws InterruptedException {
         return java.lang.Math.atan(x);
     }
     @Native
-    public static double atan2(CallContext ctx, double y, double x) throws InterruptedException {
+    public static double atan2(MessageContext ctx, double y, double x) throws InterruptedException {
         double _y = y;
         double _x = x;
         if (_x == 0) {
@@ -51,59 +51,59 @@ public class Math {
     }
 
     @Native
-    public static double asinh(CallContext ctx, double x) throws InterruptedException {
+    public static double asinh(MessageContext ctx, double x) throws InterruptedException {
         double _x = x;
         return java.lang.Math.log(_x + java.lang.Math.sqrt(_x * _x + 1));
     }
     @Native
-    public static double acosh(CallContext ctx, double x) throws InterruptedException {
+    public static double acosh(MessageContext ctx, double x) throws InterruptedException {
         double _x = x;
         return java.lang.Math.log(_x + java.lang.Math.sqrt(_x * _x - 1));
     }
     @Native
-    public static double atanh(CallContext ctx, double x) throws InterruptedException {
+    public static double atanh(MessageContext ctx, double x) throws InterruptedException {
         double _x = x;
         if (_x <= -1 || _x >= 1) return Double.NaN;
         return .5 * java.lang.Math.log((1 + _x) / (1 - _x));
     }
 
     @Native
-    public static double sin(CallContext ctx, double x) throws InterruptedException {
+    public static double sin(MessageContext ctx, double x) throws InterruptedException {
         return java.lang.Math.sin(x);
     }
     @Native
-    public static double cos(CallContext ctx, double x) throws InterruptedException {
+    public static double cos(MessageContext ctx, double x) throws InterruptedException {
         return java.lang.Math.cos(x);
     }
     @Native
-    public static double tan(CallContext ctx, double x) throws InterruptedException {
+    public static double tan(MessageContext ctx, double x) throws InterruptedException {
         return java.lang.Math.tan(x);
     }
 
     @Native
-    public static double sinh(CallContext ctx, double x) throws InterruptedException {
+    public static double sinh(MessageContext ctx, double x) throws InterruptedException {
         return java.lang.Math.sinh(x);
     }
     @Native
-    public static double cosh(CallContext ctx, double x) throws InterruptedException {
+    public static double cosh(MessageContext ctx, double x) throws InterruptedException {
         return java.lang.Math.cosh(x);
     }
     @Native
-    public static double tanh(CallContext ctx, double x) throws InterruptedException {
+    public static double tanh(MessageContext ctx, double x) throws InterruptedException {
         return java.lang.Math.tanh(x);
     }
 
     @Native
-    public static double sqrt(CallContext ctx, double x) throws InterruptedException {
+    public static double sqrt(MessageContext ctx, double x) throws InterruptedException {
         return java.lang.Math.sqrt(x);
     }
     @Native
-    public static double cbrt(CallContext ctx, double x) throws InterruptedException {
+    public static double cbrt(MessageContext ctx, double x) throws InterruptedException {
         return java.lang.Math.cbrt(x);
     }
 
     @Native
-    public static double hypot(CallContext ctx, double... vals) throws InterruptedException {
+    public static double hypot(MessageContext ctx, double ...vals) throws InterruptedException {
         var res = 0.;
         for (var el : vals) {
             var val = el;
@@ -112,68 +112,68 @@ public class Math {
         return java.lang.Math.sqrt(res);
     }
     @Native
-    public static int imul(CallContext ctx, double a, double b) throws InterruptedException {
+    public static int imul(MessageContext ctx, double a, double b) throws InterruptedException {
         return (int)a * (int)b;
     }
 
     @Native
-    public static double exp(CallContext ctx, double x) throws InterruptedException {
+    public static double exp(MessageContext ctx, double x) throws InterruptedException {
         return java.lang.Math.exp(x);
     }
     @Native
-    public static double expm1(CallContext ctx, double x) throws InterruptedException {
+    public static double expm1(MessageContext ctx, double x) throws InterruptedException {
         return java.lang.Math.expm1(x);
     }
     @Native
-    public static double pow(CallContext ctx, double x, double y) throws InterruptedException {
+    public static double pow(MessageContext ctx, double x, double y) throws InterruptedException {
         return java.lang.Math.pow(x, y);
     }
 
     @Native
-    public static double log(CallContext ctx, double x) throws InterruptedException {
+    public static double log(MessageContext ctx, double x) throws InterruptedException {
         return java.lang.Math.log(x);
     }
     @Native
-    public static double log10(CallContext ctx, double x) throws InterruptedException {
+    public static double log10(MessageContext ctx, double x) throws InterruptedException {
         return java.lang.Math.log10(x);
     }
     @Native
-    public static double log1p(CallContext ctx, double x) throws InterruptedException {
+    public static double log1p(MessageContext ctx, double x) throws InterruptedException {
         return java.lang.Math.log1p(x);
     }
     @Native
-    public static double log2(CallContext ctx, double x) throws InterruptedException {
+    public static double log2(MessageContext ctx, double x) throws InterruptedException {
         return java.lang.Math.log(x) / LN2;
     }
 
     @Native
-    public static double ceil(CallContext ctx, double x) throws InterruptedException {
+    public static double ceil(MessageContext ctx, double x) throws InterruptedException {
         return java.lang.Math.ceil(x);
     }
     @Native
-    public static double floor(CallContext ctx, double x) throws InterruptedException {
+    public static double floor(MessageContext ctx, double x) throws InterruptedException {
         return java.lang.Math.floor(x);
     }
     @Native
-    public static double round(CallContext ctx, double x) throws InterruptedException {
+    public static double round(MessageContext ctx, double x) throws InterruptedException {
         return java.lang.Math.round(x);
     }
     @Native
-    public static float fround(CallContext ctx, double x) throws InterruptedException {
+    public static float fround(MessageContext ctx, double x) throws InterruptedException {
         return (float)x;
     }
     @Native
-    public static double trunc(CallContext ctx, double x) throws InterruptedException {
+    public static double trunc(MessageContext ctx, double x) throws InterruptedException {
         var _x = x;
         return java.lang.Math.floor(java.lang.Math.abs(_x)) * java.lang.Math.signum(_x);
     }
     @Native
-    public static double abs(CallContext ctx, double x) throws InterruptedException {
+    public static double abs(MessageContext ctx, double x) throws InterruptedException {
         return java.lang.Math.abs(x);
     }
 
     @Native
-    public static double max(CallContext ctx, double... vals) throws InterruptedException {
+    public static double max(MessageContext ctx, double ...vals) throws InterruptedException {
         var res = Double.NEGATIVE_INFINITY;
 
         for (var el : vals) {
@@ -184,7 +184,7 @@ public class Math {
         return res;
     }
     @Native
-    public static double min(CallContext ctx, double... vals) throws InterruptedException {
+    public static double min(MessageContext ctx, double ...vals) throws InterruptedException {
         var res = Double.POSITIVE_INFINITY;
 
         for (var el : vals) {
@@ -196,7 +196,7 @@ public class Math {
     }
 
     @Native
-    public static double sign(CallContext ctx, double x) throws InterruptedException {
+    public static double sign(MessageContext ctx, double x) throws InterruptedException {
         return java.lang.Math.signum(x);
     }
 
@@ -205,7 +205,7 @@ public class Math {
         return java.lang.Math.random();
     }
     @Native
-    public static int clz32(CallContext ctx, double x) throws InterruptedException {
+    public static int clz32(MessageContext ctx, double x) throws InterruptedException {
         return Integer.numberOfLeadingZeros((int)x);
     }
 }

src/me/topchetoeu/jscript/polyfills/PolyfillEngine.java

@@ -1,110 +0,0 @@
-package me.topchetoeu.jscript.polyfills;
-
-import java.io.BufferedReader;
-import java.io.File;
-import java.io.IOException;
-import java.io.InputStream;
-import java.io.InputStreamReader;
-
-import me.topchetoeu.jscript.engine.Engine;
-import me.topchetoeu.jscript.engine.modules.ModuleManager;
-import me.topchetoeu.jscript.engine.values.FunctionValue;
-import me.topchetoeu.jscript.engine.values.NativeFunction;
-import me.topchetoeu.jscript.engine.values.Values;
-import me.topchetoeu.jscript.parsing.Parsing;
-
-public class PolyfillEngine extends Engine {
-    public static String streamToString(InputStream in) {
-        try {
-            StringBuilder out = new StringBuilder();
-            BufferedReader br = new BufferedReader(new InputStreamReader(in));
-
-            for(var line = br.readLine(); line != null; line = br.readLine()) {
-                out.append(line).append('\n');
-            }
-
-            br.close();
-            return out.toString();
-        }
-        catch (IOException e) {
-            return null;
-        }
-    }
-    public static String resourceToString(String name) {
-        var str = PolyfillEngine.class.getResourceAsStream("/me/topchetoeu/jscript/" + name);
-        if (str == null) return null;
-        return streamToString(str);
-    }
-
-    public final ModuleManager modules;
-
-    @Override
-    public Object makeRegex(String pattern, String flags) {
-        return new RegExp(pattern, flags);
-    }
-
-    @Override
-    public ModuleManager modules() {
-        return modules;
-    }
-    public PolyfillEngine(File root) {
-        super();
-
-        this.modules = new ModuleManager(root);
-
-        exposeNamespace("Math", Math.class);
-        exposeNamespace("JSON", JSON.class);
-        exposeClass("Promise", Promise.class);
-        exposeClass("RegExp", RegExp.class);
-        exposeClass("Date", Date.class);
-        exposeClass("Map", Map.class);
-        exposeClass("Set", Set.class);
-
-        global().define("Object", "Function", "String", "Number", "Boolean", "Symbol");
-        global().define("Array", "require");
-        global().define("Error", "SyntaxError", "TypeError", "RangeError");
-        global().define("setTimeout", "setInterval", "clearTimeout", "clearInterval");
-        // global().define("process", true, "trololo");
-        global().define("debugger");
-
-        global().define(true, new NativeFunction("measure", (ctx, thisArg, values) -> {
-            var start = System.nanoTime();
-            try {
-                return Values.call(ctx, values[0], ctx);
-            }
-            finally {
-                System.out.println(String.format("Function took %s ms", (System.nanoTime() - start) / 1000000.));
-            }
-        }));
-        global().define(true, new NativeFunction("isNaN", (ctx, thisArg, args) -> {
-            if (args.length == 0) return true;
-            else return Double.isNaN(Values.toNumber(ctx, args[0]));
-        }));
-        global().define(true, new NativeFunction("log", (el, t, args) -> {
-            for (var obj : args) Values.printValue(el, obj);
-            System.out.println();
-            return null;
-        }));
-
-        var scope = global().globalChild();
-        scope.define("gt", true, global().obj);
-        scope.define("lgt", true, scope.obj);
-        scope.define("setProps", "setConstr");
-        scope.define("internals", true, new Internals());
-        scope.define(true, new NativeFunction("run", (ctx, thisArg, args) -> {
-            var filename = (String)args[0];
-            boolean pollute = args.length > 1 && args[1].equals(true);
-            FunctionValue func;
-            var src = resourceToString("js/" + filename);
-            if (src == null) throw new RuntimeException("The source '" + filename + "' doesn't exist.");
-
-            if (pollute) func = Parsing.compile(global(), filename, src);
-            else func = Parsing.compile(scope.globalChild(), filename, src);
-
-            func.call(ctx);
-            return null;
-        }));
-
-        pushMsg(false, scope.globalChild(), java.util.Map.of(), "core.js", resourceToString("js/core.js"), null);
-    }
-}

src/me/topchetoeu/jscript/polyfills/Promise.java

@@ -1,360 +0,0 @@
-package me.topchetoeu.jscript.polyfills;
-
-import java.util.ArrayList;
-import java.util.List;
-import java.util.Map;
-
-import me.topchetoeu.jscript.engine.CallContext;
-import me.topchetoeu.jscript.engine.values.ArrayValue;
-import me.topchetoeu.jscript.engine.values.FunctionValue;
-import me.topchetoeu.jscript.engine.values.NativeFunction;
-import me.topchetoeu.jscript.engine.values.ObjectValue;
-import me.topchetoeu.jscript.engine.values.Values;
-import me.topchetoeu.jscript.exceptions.EngineException;
-import me.topchetoeu.jscript.interop.Native;
-
-public class Promise {
-    private static class Handle {
-        public final CallContext ctx;
-        public final FunctionValue fulfilled;
-        public final FunctionValue rejected;
-
-        public Handle(CallContext ctx, FunctionValue fulfilled, FunctionValue rejected) {
-            this.ctx = ctx;
-            this.fulfilled = fulfilled;
-            this.rejected = rejected;
-        }
-    }
-
-    @Native("resolve")
-    public static Promise ofResolved(CallContext engine, Object val) {
-        if (Values.isWrapper(val, Promise.class)) return Values.wrapper(val, Promise.class);
-        var res = new Promise();
-        res.fulfill(engine, val);
-        return res;
-    }
-    public static Promise ofResolved(Object val) {
-        if (Values.isWrapper(val, Promise.class)) return Values.wrapper(val, Promise.class);
-        var res = new Promise();
-        res.fulfill(val);
-        return res;
-    }
-
-    @Native("reject")
-    public static Promise ofRejected(CallContext engine, Object val) {
-        var res = new Promise();
-        res.reject(engine, val);
-        return res;
-    }
-    public static Promise ofRejected(Object val) {
-        var res = new Promise();
-        res.fulfill(val);
-        return res;
-    }
-
-    @Native
-    public static Promise any(CallContext engine, Object _promises) {
-        if (!Values.isArray(_promises)) throw EngineException.ofType("Expected argument for any to be an array.");
-        var promises = Values.array(_promises); 
-        if (promises.size() == 0) return ofResolved(new ArrayValue());
-        var n = new int[] { promises.size() };
-        var res = new Promise();
-
-        var errors = new ArrayValue();
-
-        for (var i = 0; i < promises.size(); i++) {
-            var index = i;
-            var val = promises.get(i);
-            if (Values.isWrapper(val, Promise.class)) Values.wrapper(val, Promise.class).then(
-                engine, 
-                new NativeFunction(null, (e, th, args) -> { res.fulfill(e, args[0]); return null; }),
-                new NativeFunction(null, (e, th, args) -> {
-                    errors.set(index, args[0]);
-                    n[0]--;
-                    if (n[0] <= 0) res.reject(e, errors);
-                    return null;
-                })
-            );
-            else {
-                res.fulfill(engine, val);
-                break;
-            }
-        }
-
-        return res;
-    }
-    @Native
-    public static Promise race(CallContext engine, Object _promises) {
-        if (!Values.isArray(_promises)) throw EngineException.ofType("Expected argument for any to be an array.");
-        var promises = Values.array(_promises); 
-        if (promises.size() == 0) return ofResolved(new ArrayValue());
-        var res = new Promise();
-
-        for (var i = 0; i < promises.size(); i++) {
-            var val = promises.get(i);
-            if (Values.isWrapper(val, Promise.class)) Values.wrapper(val, Promise.class).then(
-                engine, 
-                new NativeFunction(null, (e, th, args) -> { res.fulfill(e, args[0]); return null; }),
-                new NativeFunction(null, (e, th, args) -> { res.reject(e, args[0]); return null; })
-            );
-            else {
-                res.fulfill(val);
-                break;
-            }
-        }
-
-        return res;
-    }
-    @Native
-    public static Promise all(CallContext engine, Object _promises) {
-        if (!Values.isArray(_promises)) throw EngineException.ofType("Expected argument for any to be an array.");
-        var promises = Values.array(_promises); 
-        if (promises.size() == 0) return ofResolved(new ArrayValue());
-        var n = new int[] { promises.size() };
-        var res = new Promise();
-
-        var result = new ArrayValue();
-
-        for (var i = 0; i < promises.size(); i++) {
-            var index = i;
-            var val = promises.get(i);
-            if (Values.isWrapper(val, Promise.class)) Values.wrapper(val, Promise.class).then(
-                engine, 
-                new NativeFunction(null, (e, th, args) -> {
-                    result.set(index, args[0]);
-                    n[0]--;
-                    if (n[0] <= 0) res.fulfill(e, result);
-                    return null;
-                }),
-                new NativeFunction(null, (e, th, args) -> { res.reject(e, args[0]); return null; })
-            );
-            else {
-                result.set(i, val);
-                break;
-            }
-        }
-
-        if (n[0] <= 0) res.fulfill(engine, result);
-
-        return res;
-    }
-    @Native
-    public static Promise allSettled(CallContext engine, Object _promises) {
-        if (!Values.isArray(_promises)) throw EngineException.ofType("Expected argument for any to be an array.");
-        var promises = Values.array(_promises); 
-        if (promises.size() == 0) return ofResolved(new ArrayValue());
-        var n = new int[] { promises.size() };
-        var res = new Promise();
-
-        var result = new ArrayValue();
-
-        for (var i = 0; i < promises.size(); i++) {
-            var index = i;
-            var val = promises.get(i);
-            if (Values.isWrapper(val, Promise.class)) Values.wrapper(val, Promise.class).then(
-                engine,
-                new NativeFunction(null, (e, th, args) -> {
-                    result.set(index, new ObjectValue(Map.of(
-                        "status", "fulfilled",
-                        "value", args[0]
-                    )));
-                    n[0]--;
-                    if (n[0] <= 0) res.fulfill(e, result);
-                    return null;
-                }),
-                new NativeFunction(null, (e, th, args) -> {
-                    result.set(index, new ObjectValue(Map.of(
-                        "status", "rejected",
-                        "reason", args[0]
-                    )));
-                    n[0]--;
-                    if (n[0] <= 0) res.fulfill(e, result);
-                    return null;
-                })
-            );
-            else {
-                result.set(i, new ObjectValue(Map.of(
-                    "status", "fulfilled",
-                    "value", val
-                )));
-                n[0]--;
-            }
-        }
-
-        if (n[0] <= 0) res.fulfill(engine, result);
-
-        return res;
-    }
-
-    private List<Handle> handles = new ArrayList<>();
-
-    private static final int STATE_PENDING = 0;
-    private static final int STATE_FULFILLED = 1;
-    private static final int STATE_REJECTED = 2;
-
-    private int state = STATE_PENDING;
-    private Object val;
-
-    /**
-     * Thread safe - call from any thread
-     */
-    public void fulfill(Object val) {
-        if (Values.isWrapper(val, Promise.class)) throw new IllegalArgumentException("A promise may not be a fulfil value.");
-        if (state != STATE_PENDING) return;
-
-        this.state = STATE_FULFILLED;
-        this.val = val;
-        for (var el : handles) el.ctx.engine().pushMsg(true, el.fulfilled, el.ctx.data(), null, val);
-        handles = null;
-    }
-    /**
-     * Thread safe - call from any thread
-     */
-    public void fulfill(CallContext ctx, Object val) {
-        if (Values.isWrapper(val, Promise.class)) Values.wrapper(val, Promise.class).then(ctx,
-            new NativeFunction(null, (e, th, args) -> {
-                this.fulfill(e, args[0]);
-                return null;
-            }),
-            new NativeFunction(null, (e, th, args) -> {
-                this.reject(e, args[0]);
-                return null;
-            })
-        );
-        else this.fulfill(val);
-    }
-    /**
-     * Thread safe - call from any thread
-     */
-    public void reject(Object val) {
-        if (Values.isWrapper(val, Promise.class)) throw new IllegalArgumentException("A promise may not be a reject value.");
-        if (state != STATE_PENDING) return;
-
-        this.state = STATE_REJECTED;
-        this.val = val;
-        for (var el : handles) el.ctx.engine().pushMsg(true, el.rejected, el.ctx.data(), null, val);
-        handles = null;
-    }
-    /**
-     * Thread safe - call from any thread
-     */
-    public void reject(CallContext ctx, Object val) {
-        if (Values.isWrapper(val, Promise.class)) Values.wrapper(val, Promise.class).then(ctx,
-            new NativeFunction(null, (e, th, args) -> {
-                this.reject(e, args[0]);
-                return null;
-            }),
-            new NativeFunction(null, (e, th, args) -> {
-                this.reject(e, args[0]);
-                return null;
-            })
-        );
-        else this.reject(val);
-    }
-
-    private void handle(CallContext ctx, FunctionValue fulfill, FunctionValue reject) {
-        if (state == STATE_FULFILLED) ctx.engine().pushMsg(true, fulfill, ctx.data(), null, val);
-        else if (state == STATE_REJECTED) ctx.engine().pushMsg(true, reject, ctx.data(), null, val);
-        else handles.add(new Handle(ctx, fulfill, reject));
-    }
-
-    /**
-     * Thread safe - you can call this from anywhere
-     * HOWEVER, it's strongly recommended to use this only in javascript
-     */
-    @Native
-    public Promise then(CallContext ctx, Object onFulfill, Object onReject) {
-        if (!(onFulfill instanceof FunctionValue)) onFulfill = null;
-        if (!(onReject instanceof FunctionValue)) onReject = null;
-
-        var res = new Promise();
-
-        var fulfill = (FunctionValue)onFulfill;
-        var reject = (FunctionValue)onReject;
-
-        handle(ctx,
-            new NativeFunction(null, (e, th, args) -> {
-                if (fulfill == null) res.fulfill(e, args[0]);
-                else {
-                    try { res.fulfill(e, fulfill.call(e, null, args[0])); }
-                    catch (EngineException err) { res.reject(e, err.value); }
-                }
-                return null;
-            }),
-            new NativeFunction(null, (e, th, args) -> {
-                if (reject == null) res.reject(e, args[0]);
-                else {
-                    try { res.fulfill(e, reject.call(e, null, args[0])); }
-                    catch (EngineException err) { res.reject(e, err.value); }
-                }
-                return null;
-            })
-        );
-
-        return res;
-    }
-    /**
-     * Thread safe - you can call this from anywhere
-     * HOWEVER, it's strongly recommended to use this only in javascript
-     */
-    @Native("catch")
-    public Promise _catch(CallContext ctx, Object onReject) {
-        return then(ctx, null, onReject);
-    }
-    /**
-     * Thread safe - you can call this from anywhere
-     * HOWEVER, it's strongly recommended to use this only in javascript
-     */
-    @Native("finally")
-    public Promise _finally(CallContext ctx, Object handle) {
-        return then(ctx,
-            new NativeFunction(null, (e, th, args) -> {
-                if (handle instanceof FunctionValue) ((FunctionValue)handle).call(ctx);
-                return args[0];
-            }),
-            new NativeFunction(null, (e, th, args) -> {
-                if (handle instanceof FunctionValue) ((FunctionValue)handle).call(ctx);
-                throw new EngineException(args[0]);
-            })
-        );
-    }
-
-    /**
-     * NOT THREAD SAFE - must be called from the engine executor thread
-     */
-    @Native
-    public Promise(CallContext ctx, FunctionValue func) throws InterruptedException {
-        if (!(func instanceof FunctionValue)) throw EngineException.ofType("A function must be passed to the promise constructor.");
-        try {
-            func.call(
-                ctx, null,
-                new NativeFunction(null, (e, th, args) -> {
-                    fulfill(e, args.length > 0 ? args[0] : null);
-                    return null;
-                }),
-                new NativeFunction(null, (e, th, args) -> {
-                    reject(e, args.length > 0 ? args[0] : null);
-                    return null;
-                })
-            );
-        }
-        catch (EngineException e) {
-            reject(ctx, e.value);
-        }
-    }
-
-    @Override @Native
-    public String toString() {
-        if (state == STATE_PENDING) return "Promise (pending)";
-        else if (state == STATE_FULFILLED) return "Promise (fulfilled)";
-        else return "Promise (rejected)";
-    }
-
-    private Promise(int state, Object val) {
-        this.state = state;
-        this.val = val;
-    }
-    public Promise() {
-        this(STATE_PENDING, null);
-    }
-}

src/me/topchetoeu/jscript/polyfills/RegExp.java

@@ -3,7 +3,7 @@ package me.topchetoeu.jscript.polyfills;
 import java.util.ArrayList;
 import java.util.regex.Pattern;
 
-import me.topchetoeu.jscript.engine.CallContext;
+import me.topchetoeu.jscript.engine.Context;
 import me.topchetoeu.jscript.engine.values.ArrayValue;
 import me.topchetoeu.jscript.engine.values.NativeWrapper;
 import me.topchetoeu.jscript.engine.values.ObjectValue;
@@ -17,7 +17,7 @@ public class RegExp {
     private static final Pattern NAMED_PATTERN = Pattern.compile("\\(\\?<([^=!].*?)>", Pattern.DOTALL);
     private static final Pattern ESCAPE_PATTERN = Pattern.compile("[/\\-\\\\^$*+?.()|\\[\\]{}]");
 
-    private static String cleanupPattern(CallContext ctx, Object val) throws InterruptedException {
+    private static String cleanupPattern(Context ctx, Object val) throws InterruptedException {
         if (val == null) return "(?:)";
         if (val instanceof RegExp) return ((RegExp)val).source;
         if (val instanceof NativeWrapper && ((NativeWrapper)val).wrapped instanceof RegExp) {
@@ -27,7 +27,7 @@ public class RegExp {
         if (res.equals("")) return "(?:)";
         return res;
     }
-    private static String cleanupFlags(CallContext ctx, Object val) throws InterruptedException {
+    private static String cleanupFlags(Context ctx, Object val) throws InterruptedException {
         if (val == null) return "";
         return Values.toString(ctx, val);
     }
@@ -46,7 +46,7 @@ public class RegExp {
     }
 
     @Native
-    public static RegExp escape(CallContext ctx, Object raw, Object flags) throws InterruptedException {
+    public static RegExp escape(Context ctx, Object raw, Object flags) throws InterruptedException {
         return escape(Values.toString(ctx, raw), cleanupFlags(ctx, flags));
     }
     public static RegExp escape(String raw, String flags) {
@@ -79,7 +79,7 @@ public class RegExp {
     @NativeGetter("lastIndex")
     public int lastIndex() { return lastI; }
     @NativeSetter("lastIndex")
-    public void setLastIndex(CallContext ctx, Object i) throws InterruptedException {
+    public void setLastIndex(Context ctx, Object i) throws InterruptedException {
         lastI = (int)Values.toNumber(ctx, i);
     }
     public void setLastIndex(int i) {
@@ -100,7 +100,7 @@ public class RegExp {
     }
 
     @Native
-    public Object exec(CallContext ctx, Object str) throws InterruptedException {
+    public Object exec(Context ctx, Object str) throws InterruptedException {
         return exec(Values.toString(ctx, str));
     }
     public Object exec(String str) {
@@ -119,7 +119,7 @@ public class RegExp {
 
         for (var el : namedGroups) {
             try {
-                groups.defineProperty(el, matcher.group(el));
+                groups.defineProperty(null, el, matcher.group(el));
             }
             catch (IllegalArgumentException e) { }
         }
@@ -127,30 +127,30 @@ public class RegExp {
 
 
         for (int i = 0; i < matcher.groupCount() + 1; i++) {
-            obj.set(i, matcher.group(i));
+            obj.set(null, i, matcher.group(i));
         }
-        obj.defineProperty("groups", groups);
-        obj.defineProperty("index", matcher.start());
-        obj.defineProperty("input", str);
+        obj.defineProperty(null, "groups", groups);
+        obj.defineProperty(null, "index", matcher.start());
+        obj.defineProperty(null, "input", str);
 
         if (hasIndices) {
             var indices = new ArrayValue();
             for (int i = 0; i < matcher.groupCount() + 1; i++) {
-                indices.set(i, new ArrayValue(matcher.start(i), matcher.end(i)));
+                indices.set(null, i, new ArrayValue(null, matcher.start(i), matcher.end(i)));
             }
             var groupIndices = new ObjectValue();
             for (var el : namedGroups) {
-                groupIndices.defineProperty(el, new ArrayValue(matcher.start(el), matcher.end(el)));
+                groupIndices.defineProperty(null, el, new ArrayValue(null, matcher.start(el), matcher.end(el)));
             }
-            indices.defineProperty("groups", groupIndices);
-            obj.defineProperty("indices", indices);
+            indices.defineProperty(null, "groups", groupIndices);
+            obj.defineProperty(null, "indices", indices);
         }
 
         return obj;
     }
 
     @Native
-    public RegExp(CallContext ctx, Object pattern, Object flags) throws InterruptedException {
+    public RegExp(Context ctx, Object pattern, Object flags) throws InterruptedException {
         this(cleanupPattern(ctx, pattern), cleanupFlags(ctx, flags));
     }
     public RegExp(String pattern, String flags) {

src/me/topchetoeu/jscript/polyfills/Set.java

@@ -1,112 +0,0 @@
-package me.topchetoeu.jscript.polyfills;
-
-import java.util.LinkedHashSet;
-import java.util.stream.Collectors;
-
-import me.topchetoeu.jscript.engine.CallContext;
-import me.topchetoeu.jscript.engine.values.ArrayValue;
-import me.topchetoeu.jscript.engine.values.FunctionValue;
-import me.topchetoeu.jscript.engine.values.NativeFunction;
-import me.topchetoeu.jscript.engine.values.ObjectValue;
-import me.topchetoeu.jscript.engine.values.Values;
-import me.topchetoeu.jscript.exceptions.EngineException;
-import me.topchetoeu.jscript.interop.Native;
-import me.topchetoeu.jscript.interop.NativeGetter;
-
-public class Set {
-    private LinkedHashSet<Object> objs = new LinkedHashSet<>();
-
-    @Native
-    public Set add(Object key) {
-        objs.add(key);
-        return this;
-    }
-    @Native
-    public boolean delete(Object key) {
-        return objs.remove(key);
-    }
-    @Native
-    public boolean has(Object key) {
-        return objs.contains(key);
-    }
-    @Native
-    public void clear() {
-        objs.clear();
-    }
-
-    @Native
-    public void forEach(CallContext ctx, Object func, Object thisArg) throws InterruptedException {
-        if (!(func instanceof FunctionValue)) throw EngineException.ofType("func must be a function.");
-
-        for (var el : objs.stream().collect(Collectors.toList())) {
-            ((FunctionValue)func).call(ctx, thisArg, el, el, this);
-        }
-    }
-
-    @Native
-    public ObjectValue entries() {
-        var it = objs.stream().collect(Collectors.toList()).iterator();
-
-        var next = new NativeFunction("next", (ctx, thisArg, args) -> {
-            if (it.hasNext()) {
-                var val = it.next();
-                return new ObjectValue(java.util.Map.of(
-                    "value", new ArrayValue(val, val),
-                    "done", false
-                ));
-            }
-            else return new ObjectValue(java.util.Map.of("done", true));
-        });
-
-        return new ObjectValue(java.util.Map.of("next", next));
-    }
-    @Native
-    public ObjectValue keys() {
-        var it = objs.stream().collect(Collectors.toList()).iterator();
-
-        var next = new NativeFunction("next", (ctx, thisArg, args) -> {
-            if (it.hasNext()) {
-                var val = it.next();
-                return new ObjectValue(java.util.Map.of(
-                    "value", val,
-                    "done", false
-                ));
-            }
-            else return new ObjectValue(java.util.Map.of("done", true));
-        });
-
-        return new ObjectValue(java.util.Map.of("next", next));
-    }
-    @Native
-    public ObjectValue values() {
-        var it = objs.stream().collect(Collectors.toList()).iterator();
-
-        var next = new NativeFunction("next", (ctx, thisArg, args) -> {
-            if (it.hasNext()) {
-                var val = it.next();
-                return new ObjectValue(java.util.Map.of(
-                    "value", val,
-                    "done", false
-                ));
-            }
-            else return new ObjectValue(java.util.Map.of("done", true));
-        });
-
-        return new ObjectValue(java.util.Map.of("next", next));
-    }
-
-    @NativeGetter("size")
-    public int size() {
-        return objs.size();
-    }
-
-    @Native
-    public Set(CallContext ctx, Object iterable) throws InterruptedException {
-        if (Values.isPrimitive(iterable)) return;
-
-        for (var val : Values.toJavaIterable(ctx, iterable)) {
-            add(val);
-        }
-    }
-    public Set() { }
-}

src/me/topchetoeu/jscript/polyfills/TypescriptEngine.java

@@ -1,61 +0,0 @@
-package me.topchetoeu.jscript.polyfills;
-
-import java.io.File;
-import java.util.ArrayList;
-import java.util.Map;
-
-import me.topchetoeu.jscript.engine.scope.GlobalScope;
-import me.topchetoeu.jscript.engine.values.ArrayValue;
-import me.topchetoeu.jscript.engine.values.FunctionValue;
-import me.topchetoeu.jscript.engine.values.NativeFunction;
-import me.topchetoeu.jscript.engine.values.Values;
-
-public class TypescriptEngine extends PolyfillEngine {
-    private FunctionValue ts;
-
-    @Override
-    public FunctionValue compile(GlobalScope scope, String filename, String raw) throws InterruptedException {
-        if (ts != null) {
-            var res = Values.array(ts.call(context(), null, filename, raw));
-            var src = Values.toString(context(), res.get(0));
-            var func = Values.function(res.get(1));
-
-            var compiled = super.compile(scope, filename, src);
-
-            return new NativeFunction(null, (ctx, thisArg, args) -> {
-                return func.call(context(), null, compiled, thisArg, new ArrayValue(args));
-            });
-        }
-        return super.compile(scope, filename, raw);
-    }
-
-    public TypescriptEngine(File root) {
-        super(root);
-        var scope = global().globalChild();
-
-        var decls = new ArrayList<Object>();
-        decls.add(resourceToString("dts/core.d.ts"));
-        decls.add(resourceToString("dts/iterators.d.ts"));
-        decls.add(resourceToString("dts/map.d.ts"));
-        decls.add(resourceToString("dts/promise.d.ts"));
-        decls.add(resourceToString("dts/regex.d.ts"));
-        decls.add(resourceToString("dts/require.d.ts"));
-        decls.add(resourceToString("dts/set.d.ts"));
-        decls.add(resourceToString("dts/values/array.d.ts"));
-        decls.add(resourceToString("dts/values/boolean.d.ts"));
-        decls.add(resourceToString("dts/values/number.d.ts"));
-        decls.add(resourceToString("dts/values/errors.d.ts"));
-        decls.add(resourceToString("dts/values/function.d.ts"));
-        decls.add(resourceToString("dts/values/object.d.ts"));
-        decls.add(resourceToString("dts/values/string.d.ts"));
-        decls.add(resourceToString("dts/values/symbol.d.ts"));
-
-        scope.define("libs", true, ArrayValue.of(decls));
-        scope.define(true, new NativeFunction("init", (el, t, args) -> {
-            ts = Values.function(args[0]);
-            return null;
-        }));
-
-        pushMsg(false, scope, Map.of(), "bootstrap.js", resourceToString("js/bootstrap.js"), null);
-    }
-}

tsconfig.json

@@ -1,16 +0,0 @@
-{
-    "include": [ "lib/**/*.ts" ],
-    "compilerOptions": {
-        "outDir": "bin/me/topchetoeu/jscript/js",
-        "declarationDir": "bin/me/topchetoeu/jscript/dts",
-        "target": "ES5",
-        "lib": [],
-        "module": "CommonJS",
-        "declaration": true,
-        "stripInternal": true,
-        "downlevelIteration": true,
-        "esModuleInterop": true,
-        "forceConsistentCasingInFileNames": true,
-        "strict": true,
-    }
-}