fix: multiply acting as subtract

Classes

.github/workflows/tagged-release.yml

@@ -3,7 +3,7 @@ name: "tagged-release"
 on:
   push:
     tags:
-      - "v*"
+      - "*"
 
 jobs:
   tagged-release:

README.md

@@ -23,7 +23,3 @@ engine.run(true);
 // Get our result
 System.out.println(awaitable.await());
 ```
-
-## NOTE:
-
-To setup the typescript bundle in your sources, run `node build.js init-ts`. This will download the latest version of typescript, minify it, and add it to your src folder. If you are going to work with the `node build.js debug|release` command, this is not a necessary step.

build.gradle

@@ -1,21 +1,75 @@
+import java.text.SimpleDateFormat
+
 plugins {
-    id "application"
+    id 'application'
+    id 'net.nemerosa.versioning' version '2.15.0'
+    id 'org.ajoberstar.grgit' version '5.0.0-rc.3' // required by gradle
+
+    // TODO: figure out how to integrate proguard
+    // id "com.github.xaverkapeller.proguard-annotations"
+}
+
+base.archivesName = project.project_name
+version = project.project_version
+group = project.project_group
+description = 'ES5-compliant JavaScript interpreter'
+
+repositories {
+    mavenCentral()
+}
+
+dependencies {
+    annotationProcessor 'com.github.bsideup.jabel:jabel-javac-plugin:0.4.2'
+    compileOnly 'com.github.bsideup.jabel:jabel-javac-plugin:0.4.2'
+    testImplementation 'org.junit.jupiter:junit-jupiter:5.9.2'
+    testRuntimeOnly 'org.junit.platform:junit-platform-launcher'
 }
 
 java {
-    sourceCompatibility = JavaVersion.VERSION_11
-    targetCompatibility = JavaVersion.VERSION_11
-    toolchain.languageVersion = JavaLanguageVersion.of(11)
-    withSourcesJar()
+    sourceCompatibility = JavaVersion.VERSION_17
+    targetCompatibility = JavaVersion.VERSION_17
+
+    toolchain {
+        languageVersion = JavaLanguageVersion.of(17)
+    }
+}
+
+configure([tasks.compileJava]) {
+    options.release = 8
 }
 
 jar {
-    manifest.attributes["Main-class"] = project.main_class
+    manifest {
+        attributes(
+            'Main-Class': project.main_class,
+            'Build-Timestamp': new SimpleDateFormat("yyyy-MM-dd'T'HH:mm:ss.SSSZ").format(new Date()),
+            'Build-Branch': versioning.info.branch,
+            'Build-Revision': versioning.info.commit,
+            'Build-Jdk': "${System.properties['java.version']} (${System.properties['java.vendor']} ${System.properties['java.vm.version']})",
+            'Build-Author': 'TopchetoEU'
+        )
+    }
 }
 
-sourceSets {
-    main.java.srcDirs = [ "src/java" ]
-    main.resources.srcDirs = [ "src/assets" ]
+application {
+    mainClass = project.main_class
+    applicationDefaultJvmArgs = ['-Xmx2G', '-Xms2G', '-server', '-Dfile.encoding=UTF-8']
+}
+
+distZip {
+    eachFile { file ->
+        if (file.path.contains('bin')) {
+            file.exclude()
+        }
+    }
+}
+
+distTar {
+    eachFile { file ->
+        if (file.path.contains('bin')) {
+            file.exclude()
+        }
+    }
 }
 
 processResources {
@@ -27,6 +81,10 @@ processResources {
     }
 }
 
-base.archivesName = project.project_name
-version = project.project_version
-group = project.project_group
+test {
+    useJUnitPlatform()
+}
+
+wrapper {
+    gradleVersion = '8.10'
+}

gradle.properties

@@ -1,4 +1,4 @@
 project_group = me.topchetoeu
 project_name = jscript
-project_version = 0.8.6-beta
-main_class = me.topchetoeu.jscript.utils.JScriptRepl
+project_version = 0.9.41-beta
+main_class = me.topchetoeu.jscript.runtime.SimpleRepl

gradle/wrapper/gradle-wrapper.properties

@@ -1,6 +1,6 @@
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-8.5-bin.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-8.10-bin.zip
 networkTimeout=10000
 validateDistributionUrl=true
 zipStoreBase=GRADLE_USER_HOME

settings.gradle

@@ -1,5 +1,13 @@
+pluginManagement {
+    repositories {
+        mavenCentral()
+        gradlePluginPortal()
+    }
+}
+
 plugins {
     id 'org.gradle.toolchains.foojay-resolver-convention' version '0.7.0'
 }
 
+
 rootProject.name = properties.project_name

src/java/me/topchetoeu/jscript/common/Location.java

@@ -1,93 +0,0 @@
-package me.topchetoeu.jscript.common;
-
-public class Location implements Comparable<Location> {
-    public static final Location INTERNAL = new Location(0, 0, new Filename("jscript", "native"));
-    private int line;
-    private int start;
-    private Filename filename;
-
-    public int line() { return line; }
-    public int start() { return start; }
-    public Filename filename() { return filename; }
-
-    @Override
-    public String toString() {
-        return filename.toString() + ":" + line + ":" + start;
-    }
-
-    public Location add(int n, boolean clone) {
-        if (clone) return new Location(line, start + n, filename);
-        this.start += n;
-        return this;
-    }
-    public Location add(int n) {
-        return add(n, false);
-    }
-    public Location nextLine() {
-        line++;
-        start = 0;
-        return this;
-    }
-    public Location clone() {
-        return new Location(line, start, filename);
-    }
-
-    @Override
-    public int hashCode() {
-        final int prime = 31;
-        int result = 1;
-        result = prime * result + line;
-        result = prime * result + start;
-        result = prime * result + ((filename == null) ? 0 : filename.hashCode());
-        return result;
-    }
-
-    @Override
-    public boolean equals(Object obj) {
-        if (this == obj) return true;
-        if (obj == null) return false;
-        if (getClass() != obj.getClass()) return false;
-        Location other = (Location) obj;
-        if (line != other.line) return false;
-        if (start != other.start) return false;
-        if (filename == null && other.filename != null) return false;
-        else if (!filename.equals(other.filename)) return false;
-        return true;
-    }
-
-    @Override
-    public int compareTo(Location other) {
-        int a = filename.toString().compareTo(other.filename.toString());
-        int b = Integer.compare(line, other.line);
-        int c = Integer.compare(start, other.start);
-
-        if (a != 0) return a;
-        if (b != 0) return b;
-        return c;
-    }
-
-    public Location(int line, int start, Filename filename) {
-        this.line = line;
-        this.start = start;
-        this.filename = filename;
-    }
-
-    public static Location parse(String raw) {
-        int i0 = -1, i1 = -1;
-        for (var i = raw.length() - 1; i >= 0; i--) {
-            if (raw.charAt(i) == ':') {
-                if (i1 == -1) i1 = i;
-                else if (i0 == -1) {
-                    i0 = i;
-                    break;
-                }
-            }
-        }
-
-        return new Location(
-            Integer.parseInt(raw.substring(i0 + 1, i1)),
-            Integer.parseInt(raw.substring(i1 + 1)),
-            Filename.parse(raw.substring(0, i0))
-        );
-    }
-}

src/java/me/topchetoeu/jscript/common/Reading.java

@@ -1,33 +0,0 @@
-package me.topchetoeu.jscript.common;
-
-import java.io.BufferedReader;
-import java.io.IOException;
-import java.io.InputStream;
-import java.io.InputStreamReader;
-import java.io.UncheckedIOException;
-
-public class Reading {
-    private static final BufferedReader reader = new BufferedReader(new InputStreamReader(System.in));
-
-    public static synchronized String readline() throws IOException {
-        return reader.readLine();
-    }
-
-    /**
-     * Reads the given stream to a string
-     * @param in 
-     * @return
-     */
-    public static String streamToString(InputStream in) {
-        try {
-            return new String(in.readAllBytes());
-        }
-        catch (IOException e) { throw new UncheckedIOException(e); }
-    }
-    public static InputStream resourceToStream(String name) {
-        return Reading.class.getResourceAsStream("/" + name);
-    }
-    public static String resourceToString(String name) {
-        return streamToString(resourceToStream(name));
-    }
-}

src/java/me/topchetoeu/jscript/common/ResultRunnable.java

@@ -1,5 +0,0 @@
-package me.topchetoeu.jscript.common;
-
-public interface ResultRunnable<T> {
-    T run();
-}

src/java/me/topchetoeu/jscript/common/VLQ.java

@@ -1,95 +0,0 @@
-package me.topchetoeu.jscript.common;
-
-import java.util.ArrayList;
-import java.util.List;
-
-public class VLQ {
-    private static final String ALPHABET = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
-
-    private static long[] toArray(List<Long> list) {
-        var arr = new long[list.size()];
-        for (var i = 0; i < list.size(); i++) arr[i] = list.get(i);
-        return arr;
-    }
-
-    public static String encode(long... arr) {
-        var raw = new StringBuilder();
-
-        for (var data : arr) {
-            var b = data < 0 ? 1 : 0;
-            data = Math.abs(data);
-            b |= (int)(data & 0b1111) << 1;
-            data >>= 4;
-            b |=  data > 0 ? 0x20 : 0;;
-            raw.append(ALPHABET.charAt(b));
-
-            while (data > 0) {
-                b = (int)(data & 0b11111);
-                data >>= 5;
-                b |= data > 0 ? 0x20 : 0;
-                raw.append(ALPHABET.charAt(b));
-            }
-        }
-
-        return raw.toString();
-    }
-    public static long[] decode(String val) {
-        if (val.length() == 0) return new long[0];
-
-        var list = new ArrayList<Long>();
-
-        for (var i = 0; i < val.length();) {
-            var sign = 1;
-            var curr = ALPHABET.indexOf(val.charAt(i++));
-            var cont = (curr & 0x20) == 0x20;
-            if ((curr & 1) == 1) sign = -1;
-            long res = (curr & 0b11110) >> 1;
-            var n = 4;
-
-            for (; i < val.length() && cont;) {
-                curr = ALPHABET.indexOf(val.charAt(i++));
-                cont = (curr & 0x20) == 0x20;
-                res |= (curr & 0b11111) << n;
-                n += 5;
-                if (!cont) break;
-            }
-
-            list.add(res * sign);
-        }
-
-        return toArray(list);
-    }
-
-    public static String encodeMapping(long[][][] arr) {
-        var res = new StringBuilder();
-        var semicolon = false;
-        
-        for (var line : arr) {
-            var comma = false;
-
-            if (semicolon) res.append(";");
-            semicolon = true;
-
-            for (var el : line) {
-                if (comma) res.append(",");
-                comma = true;
-                res.append(encode(el));
-            }
-        }
-
-        return res.toString();
-    }
-    public static long[][][] decodeMapping(String val) {
-        var lines = new ArrayList<long[][]>();
-
-        for (var line : val.split(";", -1)) {
-            var elements = new ArrayList<long[]>();
-            for (var el : line.split(",", -1)) {
-                elements.add(decode(el));
-            }
-            lines.add(elements.toArray(long[][]::new));
-        }
-
-        return lines.toArray(long[][][]::new);
-    }
-}

src/java/me/topchetoeu/jscript/common/events/Awaitable.java

@@ -1,27 +0,0 @@
-package me.topchetoeu.jscript.common.events;
-
-public interface Awaitable<T> {
-    public static interface ResultHandler<T> {
-        public void onResult(T data);
-    }
-    public static interface ErrorHandler {
-        public void onError(RuntimeException error);
-    }
-
-    T await();
-
-    default void handle(ResultHandler<T> onResult, ErrorHandler onError) {
-        var thread = new Thread(() -> {
-            try {
-                onResult.onResult(await());
-            }
-            catch (RuntimeException e) {
-                onError.onError(e);
-            }
-        }, "Awaiter");
-        thread.start();
-    }
-    default void handle(ResultHandler<T> onResult) {
-        handle(onResult, err -> {});
-    }
-}

src/java/me/topchetoeu/jscript/common/events/DataNotifier.java

@@ -1,31 +0,0 @@
-package me.topchetoeu.jscript.common.events;
-
-public class DataNotifier<T> implements Awaitable<T> {
-    private Notifier notifier = new Notifier();
-    private boolean isErr;
-    private T val;
-    private RuntimeException err;
-
-    public void error(RuntimeException t) {
-        err = t;
-        isErr = true;
-        notifier.next();
-    }
-    public void next(T val) {
-        this.val = val;
-        isErr = false;
-        notifier.next();
-    }
-    public T await() {
-        notifier.await();
-
-        try {
-            if (isErr) throw err;
-            else return val;
-        }
-        finally {
-            this.err = null;
-            this.val = null;
-        }
-    }
-}

src/java/me/topchetoeu/jscript/common/events/Notifier.java

@@ -1,19 +0,0 @@
-package me.topchetoeu.jscript.common.events;
-
-import me.topchetoeu.jscript.core.exceptions.InterruptException;
-
-public class Notifier {
-    private boolean ok = false;
-
-    public synchronized void next() {
-        ok = true;
-        notifyAll();
-    }
-    public synchronized void await() {
-        try {
-            while (!ok) wait();
-            ok = false;
-        }
-        catch (InterruptedException e) { throw new InterruptException(e); }
-    }
-}

src/java/me/topchetoeu/jscript/common/json/JSON.java

@@ -1,243 +0,0 @@
-package me.topchetoeu.jscript.common.json;
-
-import java.util.HashSet;
-import java.util.List;
-import java.util.stream.Collectors;
-
-import me.topchetoeu.jscript.common.Filename;
-import me.topchetoeu.jscript.core.engine.Context;
-import me.topchetoeu.jscript.core.engine.values.ArrayValue;
-import me.topchetoeu.jscript.core.engine.values.ObjectValue;
-import me.topchetoeu.jscript.core.engine.values.Values;
-import me.topchetoeu.jscript.core.exceptions.EngineException;
-import me.topchetoeu.jscript.core.exceptions.SyntaxException;
-import me.topchetoeu.jscript.core.parsing.Operator;
-import me.topchetoeu.jscript.core.parsing.ParseRes;
-import me.topchetoeu.jscript.core.parsing.Parsing;
-import me.topchetoeu.jscript.core.parsing.Token;
-
-public class JSON {
-    public static Object toJs(JSONElement val) {
-        if (val.isBoolean()) return val.bool();
-        if (val.isString()) return val.string();
-        if (val.isNumber()) return val.number();
-        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(null, el.getKey(), toJs(el.getValue()));
-            }
-            return res;
-        }
-        if (val.isNull()) return Values.NULL;
-        return null;
-    }
-    private static JSONElement fromJs(Context ctx, Object val, HashSet<Object> prev) {
-        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);
-        if (val == Values.NULL) return JSONElement.NULL;
-        if (val instanceof ArrayValue) {
-            if (prev.contains(val)) throw new EngineException("Circular dependency in JSON.");
-            prev.add(val);
-
-            var res = new JSONList();
-
-            for (var el : ((ArrayValue)val).toArray()) {
-                var jsonEl = fromJs(ctx, el, prev);
-                if (jsonEl == null) jsonEl = JSONElement.NULL;
-                res.add(jsonEl);
-            }
-
-            prev.remove(val);
-            return JSONElement.of(res);
-        }
-        if (val instanceof ObjectValue) {
-            if (prev.contains(val)) throw new EngineException("Circular dependency in JSON.");
-            prev.add(val);
-
-            var res = new JSONMap();
-
-            for (var el : Values.getMembers(ctx, val, false, false)) {
-                var jsonEl = fromJs(ctx, Values.getMember(ctx, val, el), prev);
-                if (jsonEl == null) continue;
-                if (el instanceof String || el instanceof Number) res.put(el.toString(), jsonEl);
-            }
-
-            prev.remove(val);
-            return JSONElement.of(res);
-        }
-        if (val == null) return null;
-        return null;
-    }
-    public static JSONElement fromJs(Context ctx, Object val) {
-        return fromJs(ctx, val, new HashSet<>());
-    }
-
-    public static ParseRes<String> parseIdentifier(List<Token> tokens, int i) {
-        return Parsing.parseIdentifier(tokens, i);
-    }
-    public static ParseRes<String> parseString(Filename filename, List<Token> tokens, int i) {
-        var res = Parsing.parseString(filename, tokens, i);
-        if (res.isSuccess()) return ParseRes.res((String)res.result.value, res.n);
-        else return res.transform();
-    }
-    public static ParseRes<Double> parseNumber(Filename filename, List<Token> tokens, int i) {
-        var minus = Parsing.isOperator(tokens, i, Operator.SUBTRACT);
-        if (minus) i++;
-
-        var res = Parsing.parseNumber(filename, tokens, i);
-        if (res.isSuccess()) return ParseRes.res((minus ? -1 : 1) * (Double)res.result.value, res.n + (minus ? 1 : 0));
-        else return res.transform();
-    }
-    public static ParseRes<Boolean> parseBool(Filename filename, List<Token> tokens, int i) {
-        var id = parseIdentifier(tokens, i);
-
-        if (!id.isSuccess()) return ParseRes.failed();
-        else if (id.result.equals("true")) return ParseRes.res(true, 1);
-        else if (id.result.equals("false")) return ParseRes.res(false, 1);
-        else return ParseRes.failed();
-    }
-
-    public static ParseRes<?> parseValue(Filename filename, List<Token> tokens, int i) {
-        return ParseRes.any(
-            parseString(filename, tokens, i),
-            parseNumber(filename, tokens, i),
-            parseBool(filename, tokens, i),
-            parseMap(filename, tokens, i),
-            parseList(filename, tokens, i)
-        );
-    }
-
-    public static ParseRes<JSONMap> parseMap(Filename filename, List<Token> tokens, int i) {
-        int n = 0;
-        if (!Parsing.isOperator(tokens, i + n++, Operator.BRACE_OPEN)) return ParseRes.failed();
-
-        var values = new JSONMap();
-
-        while (true) {
-            if (Parsing.isOperator(tokens, i + n, Operator.BRACE_CLOSE)) {
-                n++;
-                break;
-            }
-
-            var name = ParseRes.any(
-                parseIdentifier(tokens, i + n),
-                parseString(filename, tokens, i + n),
-                parseNumber(filename, tokens, i + n)
-            );
-            if (!name.isSuccess()) return ParseRes.error(Parsing.getLoc(filename, tokens, i + n), "Expected an index.", name);
-            else n += name.n;
-
-            if (!Parsing.isOperator(tokens, i + n, Operator.COLON)) {
-                return ParseRes.error(Parsing.getLoc(filename, tokens, i + n), "Expected a colon.", name);
-            }
-            n++;
-
-            var res = parseValue(filename, tokens, i + n);
-            if (!res.isSuccess()) return ParseRes.error(Parsing.getLoc(filename, tokens, i + n), "Expected a list element.", res);
-            else n += res.n;
-
-            values.put(name.result.toString(), JSONElement.of(res.result));
-
-            if (Parsing.isOperator(tokens, i + n, Operator.COMMA)) n++;
-            else if (Parsing.isOperator(tokens, i + n, Operator.BRACE_CLOSE)) {
-                n++;
-                break;
-            }
-        }
-
-        return ParseRes.res(values, n);
-    }
-    public static ParseRes<JSONList> parseList(Filename filename, List<Token> tokens, int i) {
-        int n = 0;
-        if (!Parsing.isOperator(tokens, i + n++, Operator.BRACKET_OPEN)) return ParseRes.failed();
-
-        var values = new JSONList();
-
-        while (true) {
-            if (Parsing.isOperator(tokens, i + n, Operator.BRACKET_CLOSE)) {
-                n++;
-                break;
-            }
-
-            var res = parseValue(filename, tokens, i + n);
-            if (!res.isSuccess()) return ParseRes.error(Parsing.getLoc(filename, tokens, i + n), "Expected a list element.", res);
-            else n += res.n;
-
-            values.add(JSONElement.of(res.result));
-
-            if (Parsing.isOperator(tokens, i + n, Operator.COMMA)) n++;
-            else if (Parsing.isOperator(tokens, i + n, Operator.BRACKET_CLOSE)) {
-                n++;
-                break;
-            }
-        }
-
-        return ParseRes.res(values, n);
-    }
-    public static JSONElement parse(Filename filename, String raw) {
-        if (filename == null) filename = new Filename("jscript", "json");
-        var res = parseValue(filename, Parsing.tokenize(filename, raw), 0);
-        if (res.isFailed()) throw new SyntaxException(null, "Invalid JSON given.");
-        else if (res.isError()) throw new SyntaxException(null, res.error);
-        else return JSONElement.of(res.result);
-    }
-
-    public static String stringify(JSONElement el) {
-        if (el.isNumber()) return Double.toString(el.number());
-        if (el.isBoolean()) return el.bool() ? "true" : "false";
-        if (el.isNull()) return "null";
-        if (el.isString()) {
-            var res = new StringBuilder("\"");
-            var alphabet = "0123456789ABCDEF".toCharArray();
-
-            for (var c : el.string().toCharArray()) {
-                if (c < 32 || c >= 127) {
-                    res
-                        .append("\\u")
-                        .append(alphabet[(c >> 12) & 0xF])
-                        .append(alphabet[(c >> 8) & 0xF])
-                        .append(alphabet[(c >> 4) & 0xF])
-                        .append(alphabet[(c >> 0) & 0xF]);
-                }
-                else if (c == '\\')
-                    res.append("\\\\");
-                else if (c == '"')
-                    res.append("\\\"");
-                else res.append(c);
-            }
-
-            return res.append('"').toString();
-        }
-        if (el.isList()) {
-            var res = new StringBuilder().append("[");
-            for (int i = 0; i < el.list().size(); i++) {
-                if (i != 0) res.append(",");
-                res.append(stringify(el.list().get(i)));
-            }
-            res.append("]");
-            return res.toString();
-        }
-        if (el.isMap()) {
-            var res = new StringBuilder().append("{");
-            var entries = el.map().entrySet().stream().collect(Collectors.toList());
-
-            for (int i = 0; i < entries.size(); i++) {
-                if (i != 0) res.append(",");
-                res.append(stringify(JSONElement.string(entries.get(i).getKey())));
-                res.append(":");
-                res.append(stringify(entries.get(i).getValue()));
-            }
-            res.append("}");
-            return res.toString();
-        }
-        return null;
-    }
-    public static String stringify(JSONMap map) {
-        return stringify(JSONElement.of(map));
-    }
-    public static String stringify(JSONList list) {
-        return stringify(JSONElement.of(list));
-    }
-}

src/java/me/topchetoeu/jscript/core/compilation/AssignableStatement.java

@@ -1,12 +0,0 @@
-package me.topchetoeu.jscript.core.compilation;
-
-import me.topchetoeu.jscript.common.Location;
-import me.topchetoeu.jscript.core.engine.Operation;
-
-public abstract class AssignableStatement extends Statement {
-    public abstract Statement toAssign(Statement val, Operation operation);
-
-    protected AssignableStatement(Location loc) {
-        super(loc);
-    }
-}

src/java/me/topchetoeu/jscript/core/compilation/CalculateResult.java

@@ -1,21 +0,0 @@
-package me.topchetoeu.jscript.core.compilation;
-
-import me.topchetoeu.jscript.core.engine.values.Values;
-
-public final class CalculateResult {
-    public final boolean exists;
-    public final Object value;
-
-    public final boolean isTruthy() {
-        return exists && Values.toBoolean(value);
-    }
-
-    public CalculateResult(Object value) {
-        this.exists = true;
-        this.value = value;
-    }
-    public CalculateResult() {
-        this.exists = false;
-        this.value = null;
-    }
-}

src/java/me/topchetoeu/jscript/core/compilation/CompileTarget.java

@@ -1,66 +0,0 @@
-package me.topchetoeu.jscript.core.compilation;
-
-import java.util.HashMap;
-import java.util.Map;
-import java.util.TreeSet;
-import java.util.Vector;
-
-import me.topchetoeu.jscript.common.Location;
-import me.topchetoeu.jscript.core.compilation.Instruction.BreakpointType;
-import me.topchetoeu.jscript.core.engine.Environment;
-import me.topchetoeu.jscript.core.engine.values.CodeFunction;
-
-public class CompileTarget {
-    public final Vector<Instruction> target = new Vector<>();
-    public final Map<Long, FunctionBody> functions;
-    public final TreeSet<Location> breakpoints;
-    private final HashMap<Location, Instruction> bpToInstr = new HashMap<>();
-
-    public Instruction add(Instruction instr) {
-        target.add(instr);
-        return instr;
-    }
-    public Instruction set(int i, Instruction instr) {
-        return target.set(i, instr);
-    }
-    public void setDebug(int i, BreakpointType type) {
-        var instr = target.get(i);
-        instr.breakpoint = type;
-
-        if (type == BreakpointType.NONE) {
-            breakpoints.remove(target.get(i).location);
-            bpToInstr.remove(instr.location, instr);
-        }
-        else {
-            breakpoints.add(target.get(i).location);
-
-            var old = bpToInstr.put(instr.location, instr);
-            if (old != null) old.breakpoint = BreakpointType.NONE;
-        }
-    }
-    public void setDebug(BreakpointType type) {
-        setDebug(target.size() - 1, type);
-    }
-    public Instruction get(int i) {
-        return target.get(i);
-    }
-    public int size() { return target.size(); }
-    public Location lastLoc(Location fallback) {
-        if (target.size() == 0) return fallback;
-        else return target.get(target.size() - 1).location;
-    }
-
-    public Instruction[] array() { return target.toArray(Instruction[]::new); }
-
-    public FunctionBody body() {
-        return functions.get(0l);
-    }
-    public CodeFunction func(Environment env) {
-        return new CodeFunction(env, "", body());
-    }
-
-    public CompileTarget(Map<Long, FunctionBody> functions, TreeSet<Location> breakpoints) {
-        this.functions = functions;
-        this.breakpoints = breakpoints;
-    }
-}

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

@@ -1,64 +0,0 @@
-package me.topchetoeu.jscript.core.compilation;
-
-import java.util.List;
-import java.util.Vector;
-
-import me.topchetoeu.jscript.common.Location;
-import me.topchetoeu.jscript.core.compilation.Instruction.BreakpointType;
-import me.topchetoeu.jscript.core.compilation.values.FunctionStatement;
-import me.topchetoeu.jscript.core.engine.scope.ScopeRecord;
-
-public class CompoundStatement extends Statement {
-    public final Statement[] statements;
-    public final boolean separateFuncs;
-    public Location end;
-
-    @Override public boolean pure() {
-        for (var stm : statements) {
-            if (!stm.pure()) return false;
-        }
-
-        return true;
-    }
-
-    @Override
-    public void declare(ScopeRecord varsScope) {
-        for (var stm : statements) stm.declare(varsScope);
-    }
-
-    @Override
-    public void compile(CompileTarget target, ScopeRecord scope, boolean pollute, BreakpointType type) {
-        List<Statement> statements = new Vector<Statement>();
-        if (separateFuncs) for (var stm : this.statements) {
-            if (stm instanceof FunctionStatement && ((FunctionStatement)stm).statement) {
-                stm.compile(target, scope, false);
-            }
-            else statements.add(stm);
-        }
-        else statements = List.of(this.statements);
-
-        var polluted = false;
-
-        for (var i = 0; i < statements.size(); i++) {
-            var stm = statements.get(i);
-
-            if (i != statements.size() - 1) stm.compile(target, scope, false, BreakpointType.STEP_OVER);
-            else stm.compile(target, scope, polluted = pollute, BreakpointType.STEP_OVER);
-        }
-
-        if (!polluted && pollute) {
-            target.add(Instruction.loadValue(loc(), null));
-        }
-    }
-
-    public CompoundStatement setEnd(Location loc) {
-        this.end = loc;
-        return this;
-    }
-
-    public CompoundStatement(Location loc, boolean separateFuncs, Statement ...statements) {
-        super(loc);
-        this.separateFuncs = separateFuncs;
-        this.statements = statements;
-    }
-}

src/java/me/topchetoeu/jscript/core/compilation/FunctionBody.java

@@ -1,29 +0,0 @@
-package me.topchetoeu.jscript.core.compilation;
-
-public class FunctionBody {
-    public final Instruction[] instructions;
-    public final String[] captureNames, localNames;
-    public final int localsN, argsN;
-
-    public FunctionBody(int localsN, int argsN, Instruction[] instructions, String[] captureNames, String[] localNames) {
-        this.argsN = argsN;
-        this.localsN = localsN;
-        this.instructions = instructions;
-        this.captureNames = captureNames;
-        this.localNames = localNames;
-    }
-    public FunctionBody(int localsN, int argsN, Instruction[] instructions) {
-        this.argsN = argsN;
-        this.localsN = localsN;
-        this.instructions = instructions;
-        this.captureNames = new String[0];
-        this.localNames = new String[0];
-    }
-    public FunctionBody(Instruction... instructions) {
-        this.argsN = 0;
-        this.localsN = 2;
-        this.instructions = instructions;
-        this.captureNames = new String[0];
-        this.localNames = new String[0];
-    }
-}

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

@@ -1,256 +0,0 @@
-package me.topchetoeu.jscript.core.compilation;
-
-import me.topchetoeu.jscript.common.Location;
-import me.topchetoeu.jscript.core.engine.Operation;
-import me.topchetoeu.jscript.core.exceptions.SyntaxException;
-
-public class Instruction {
-    public static enum Type {
-        RETURN,
-        THROW,
-        THROW_SYNTAX,
-        DELETE,
-        TRY_START,
-        TRY_END,
-        NOP,
-
-        CALL,
-        CALL_NEW,
-        JMP_IF,
-        JMP_IFN,
-        JMP,
-
-        LOAD_VALUE,
-
-        LOAD_VAR,
-        LOAD_MEMBER,
-        LOAD_VAL_MEMBER,
-        LOAD_GLOB,
-
-        LOAD_FUNC,
-        LOAD_ARR,
-        LOAD_OBJ,
-        STORE_SELF_FUNC,
-        LOAD_REGEX,
-
-        DUP,
-
-        STORE_VAR,
-        STORE_MEMBER,
-        DISCARD,
-
-        MAKE_VAR,
-        DEF_PROP,
-        KEYS,
-
-        TYPEOF,
-        OPERATION;
-    }
-    public static enum BreakpointType {
-        NONE,
-        STEP_OVER,
-        STEP_IN;
-
-        public boolean shouldStepIn() {
-            return this != NONE;
-        }
-        public boolean shouldStepOver() {
-            return this == STEP_OVER;
-        }
-    }
-
-    public final Type type;
-    public final Object[] params;
-    public Location location;
-    public BreakpointType breakpoint = BreakpointType.NONE;
-
-    public Instruction setDbgData(Instruction other) {
-        this.location = other.location;
-        this.breakpoint = other.breakpoint;
-        return this;
-    }
-
-    public Instruction locate(Location loc) {
-        this.location = loc;
-        return this;
-    }
-
-    @SuppressWarnings("unchecked")
-    public <T> T get(int i) {
-        if (i >= params.length || i < 0) return null;
-        return (T)params[i];
-    }
-    @SuppressWarnings("unchecked")
-    public <T> T get(int i, T defaultVal) {
-        if (i >= params.length || i < 0) return defaultVal;
-        return (T)params[i];
-    }
-    public boolean match(Object ...args) {
-        if (args.length != params.length) return false;
-        for (int i = 0; i < args.length; i++) {
-            var a = params[i];
-            var b = args[i];
-            if (a == null || b == null) {
-                if (!(a == null && b == null)) return false;
-            }
-            if (!a.equals(b)) return false;
-        }
-        return true;
-    }
-    public boolean is(int i, Object arg) {
-        if (params.length <= i) return false;
-        return params[i].equals(arg);
-    }
-
-    private Instruction(Location location, Type type, Object ...params) {
-        this.location = location;
-        this.type = type;
-        this.params = params;
-    }
-
-    public static Instruction tryStart(Location loc, int catchStart, int finallyStart, int end) {
-        return new Instruction(loc, Type.TRY_START, catchStart, finallyStart, end);
-    }
-    public static Instruction tryEnd(Location loc) {
-        return new Instruction(loc, Type.TRY_END);
-    }
-    public static Instruction throwInstr(Location loc) {
-        return new Instruction(loc, Type.THROW);
-    }
-    public static Instruction throwSyntax(Location loc, SyntaxException err) {
-        return new Instruction(loc, Type.THROW_SYNTAX, err.getMessage());
-    }
-    public static Instruction throwSyntax(Location loc, String err) {
-        return new Instruction(loc, Type.THROW_SYNTAX, err);
-    }
-    public static Instruction delete(Location loc) {
-        return new Instruction(loc, Type.DELETE);
-    }
-    public static Instruction ret(Location loc) {
-        return new Instruction(loc, Type.RETURN);
-    }
-    public static Instruction debug(Location loc) {
-        return new Instruction(loc, Type.NOP, "debug");
-    }
-
-    public static Instruction nop(Location loc, Object ...params) {
-        for (var param : params) {
-            if (param instanceof String) continue;
-            if (param instanceof Boolean) continue;
-            if (param instanceof Double) continue;
-            if (param instanceof Integer) continue;
-            if (param == null) continue;
-
-            throw new RuntimeException("NOP params may contain only strings, booleans, doubles, integers and nulls.");
-        }
-        return new Instruction(loc, Type.NOP, params);
-    }
-
-    public static Instruction call(Location loc, int argn) {
-        return new Instruction(loc, Type.CALL, argn);
-    }
-    public static Instruction callNew(Location loc, int argn) {
-        return new Instruction(loc, Type.CALL_NEW, argn);
-    }
-    public static Instruction jmp(Location loc, int offset) {
-        return new Instruction(loc, Type.JMP, offset);
-    }
-    public static Instruction jmpIf(Location loc, int offset) {
-        return new Instruction(loc, Type.JMP_IF, offset);
-    }
-    public static Instruction jmpIfNot(Location loc, int offset) {
-        return new Instruction(loc, Type.JMP_IFN, offset);
-    }
-
-    public static Instruction loadValue(Location loc, Object val) {
-        return new Instruction(loc, Type.LOAD_VALUE, val);
-    }
-
-    public static Instruction makeVar(Location loc, String name) {
-        return new Instruction(loc, Type.MAKE_VAR, name);
-    }
-    public static Instruction loadVar(Location loc, Object i) {
-        return new Instruction(loc, Type.LOAD_VAR, i);
-    }
-    public static Instruction loadGlob(Location loc) {
-        return new Instruction(loc, Type.LOAD_GLOB);
-    }
-    public static Instruction loadMember(Location loc) {
-        return new Instruction(loc, Type.LOAD_MEMBER);
-    }
-    public static Instruction loadMember(Location loc, Object key) {
-        if (key instanceof Number) key = ((Number)key).doubleValue();
-        return new Instruction(loc, Type.LOAD_VAL_MEMBER, key);
-    }
-
-    public static Instruction loadRegex(Location loc, String pattern, String flags) {
-        return new Instruction(loc, Type.LOAD_REGEX, pattern, flags);
-    }
-    public static Instruction loadFunc(Location loc, long id, int[] captures) {
-        var args = new Object[1 + captures.length];
-        args[0] = id;
-        for (var i = 0; i < captures.length; i++) args[i + 1] = captures[i];
-        return new Instruction(loc, Type.LOAD_FUNC, args);
-    }
-    public static Instruction loadObj(Location loc) {
-        return new Instruction(loc, Type.LOAD_OBJ);
-    }
-    public static Instruction loadArr(Location loc, int count) {
-        return new Instruction(loc, Type.LOAD_ARR, count);
-    }
-    public static Instruction dup(Location loc) {
-        return new Instruction(loc, Type.DUP, 1);
-    }
-    public static Instruction dup(Location loc, int count) {
-        return new Instruction(loc, Type.DUP, count);
-    }
-
-    public static Instruction storeSelfFunc(Location loc, int i) {
-        return new Instruction(loc, Type.STORE_SELF_FUNC, i);
-    }
-    public static Instruction storeVar(Location loc, Object i) {
-        return new Instruction(loc, Type.STORE_VAR, i, false);
-    }
-    public static Instruction storeVar(Location loc, Object i, boolean keep) {
-        return new Instruction(loc, Type.STORE_VAR, i, keep);
-    }
-    public static Instruction storeMember(Location loc) {
-        return new Instruction(loc, Type.STORE_MEMBER, false);
-    }
-    public static Instruction storeMember(Location loc, boolean keep) {
-        return new Instruction(loc, Type.STORE_MEMBER, keep);
-    }
-    public static Instruction discard(Location loc) {
-        return new Instruction(loc, Type.DISCARD);
-    }
-
-    public static Instruction typeof(Location loc) {
-        return new Instruction(loc, Type.TYPEOF);
-    }
-    public static Instruction typeof(Location loc, Object varName) {
-        return new Instruction(loc, Type.TYPEOF, varName);
-    }
-
-    public static Instruction keys(Location loc, boolean forInFormat) {
-        return new Instruction(loc, Type.KEYS, forInFormat);
-    }
-
-    public static Instruction defProp(Location loc) {
-        return new Instruction(loc, Type.DEF_PROP);
-    }
-
-    public static Instruction operation(Location loc, Operation op) {
-        return new Instruction(loc, Type.OPERATION, op);
-    }
-
-    @Override
-    public String toString() {
-        var res = type.toString();
-
-        for (int i = 0; i < params.length; i++) {
-            res += " " + params[i];
-        }
-
-        return res;
-    }
-}

src/java/me/topchetoeu/jscript/core/compilation/Statement.java

@@ -1,32 +0,0 @@
-package me.topchetoeu.jscript.core.compilation;
-
-import me.topchetoeu.jscript.common.Location;
-import me.topchetoeu.jscript.core.compilation.Instruction.BreakpointType;
-import me.topchetoeu.jscript.core.engine.scope.ScopeRecord;
-
-public abstract class Statement {
-    private Location _loc;
-
-    public boolean pure() { return false; }
-    public void declare(ScopeRecord varsScope) { }
-
-    public void compile(CompileTarget target, ScopeRecord scope, boolean pollute, BreakpointType type) {
-        int start = target.size();
-        compile(target, scope, pollute);
-
-        if (target.size() != start) {
-            target.get(start).locate(loc());
-            target.setDebug(start, type);
-        }
-    }
-    public void compile(CompileTarget target, ScopeRecord scope, boolean pollute) {
-        compile(target, scope, pollute, BreakpointType.NONE);
-    }
-
-    public Location loc() { return _loc; }
-    public void setLoc(Location loc) { _loc = loc; }
-
-    protected Statement(Location loc) {
-        this._loc = loc;
-    }
-}

src/java/me/topchetoeu/jscript/core/compilation/ThrowSyntaxStatement.java

@@ -1,18 +0,0 @@
-package me.topchetoeu.jscript.core.compilation;
-
-import me.topchetoeu.jscript.core.engine.scope.ScopeRecord;
-import me.topchetoeu.jscript.core.exceptions.SyntaxException;
-
-public class ThrowSyntaxStatement extends Statement {
-    public final String name;
-
-    @Override
-    public void compile(CompileTarget target, ScopeRecord scope, boolean pollute) {
-        target.add(Instruction.throwSyntax(loc(), name));
-    }
-
-    public ThrowSyntaxStatement(SyntaxException e) {
-        super(e.loc);
-        this.name = e.msg;
-    }
-}

src/java/me/topchetoeu/jscript/core/compilation/VariableDeclareStatement.java

@@ -1,52 +0,0 @@
-package me.topchetoeu.jscript.core.compilation;
-
-import java.util.List;
-
-import me.topchetoeu.jscript.common.Location;
-import me.topchetoeu.jscript.core.compilation.Instruction.BreakpointType;
-import me.topchetoeu.jscript.core.compilation.values.FunctionStatement;
-import me.topchetoeu.jscript.core.engine.scope.ScopeRecord;
-
-public class VariableDeclareStatement extends Statement {
-    public static class Pair {
-        public final String name;
-        public final Statement value;
-        public final Location location;
-
-        public Pair(String name, Statement value, Location location) {
-            this.name = name;
-            this.value = value;
-            this.location = location;
-        }
-    }
-
-    public final List<Pair> values;
-
-    @Override
-    public void declare(ScopeRecord varsScope) {
-        for (var key : values) {
-            varsScope.define(key.name);
-        }
-    }
-    @Override
-    public void compile(CompileTarget target, ScopeRecord scope, boolean pollute) {
-        for (var entry : values) {
-            if (entry.name == null) continue;
-            var key = scope.getKey(entry.name);
-
-            if (key instanceof String) target.add(Instruction.makeVar(entry.location, (String)key));
-
-            if (entry.value != null) {
-                FunctionStatement.compileWithName(entry.value, target, scope, true, entry.name, BreakpointType.STEP_OVER);
-                target.add(Instruction.storeVar(entry.location, key));
-            }
-        }
-
-        if (pollute) target.add(Instruction.loadValue(loc(), null));
-    }
-
-    public VariableDeclareStatement(Location loc, List<Pair> values) {
-        super(loc);
-        this.values = values;
-    }
-}

src/java/me/topchetoeu/jscript/core/compilation/control/BreakStatement.java

@@ -1,22 +0,0 @@
-package me.topchetoeu.jscript.core.compilation.control;
-
-import me.topchetoeu.jscript.common.Location;
-import me.topchetoeu.jscript.core.compilation.CompileTarget;
-import me.topchetoeu.jscript.core.compilation.Instruction;
-import me.topchetoeu.jscript.core.compilation.Statement;
-import me.topchetoeu.jscript.core.engine.scope.ScopeRecord;
-
-public class BreakStatement extends Statement {
-    public final String label;
-
-    @Override
-    public void compile(CompileTarget target, ScopeRecord scope, boolean pollute) {
-        target.add(Instruction.nop(loc(), "break", label));
-        if (pollute) target.add(Instruction.loadValue(loc(), null));
-    }
-
-    public BreakStatement(Location loc, String label) {
-        super(loc);
-        this.label = label;
-    }
-}

src/java/me/topchetoeu/jscript/core/compilation/control/ContinueStatement.java

@@ -1,22 +0,0 @@
-package me.topchetoeu.jscript.core.compilation.control;
-
-import me.topchetoeu.jscript.common.Location;
-import me.topchetoeu.jscript.core.compilation.CompileTarget;
-import me.topchetoeu.jscript.core.compilation.Instruction;
-import me.topchetoeu.jscript.core.compilation.Statement;
-import me.topchetoeu.jscript.core.engine.scope.ScopeRecord;
-
-public class ContinueStatement extends Statement {
-    public final String label;
-
-    @Override
-    public void compile(CompileTarget target, ScopeRecord scope, boolean pollute) {
-        target.add(Instruction.nop(loc(), "cont", label));
-        if (pollute) target.add(Instruction.loadValue(loc(), null));
-    }
-
-    public ContinueStatement(Location loc, String label) {
-        super(loc);
-        this.label = label;
-    }
-}

src/java/me/topchetoeu/jscript/core/compilation/control/DebugStatement.java

@@ -1,19 +0,0 @@
-package me.topchetoeu.jscript.core.compilation.control;
-
-import me.topchetoeu.jscript.common.Location;
-import me.topchetoeu.jscript.core.compilation.CompileTarget;
-import me.topchetoeu.jscript.core.compilation.Instruction;
-import me.topchetoeu.jscript.core.compilation.Statement;
-import me.topchetoeu.jscript.core.engine.scope.ScopeRecord;
-
-public class DebugStatement extends Statement {
-    @Override
-    public void compile(CompileTarget target, ScopeRecord scope, boolean pollute) {
-        target.add(Instruction.debug(loc()));
-        if (pollute) target.add(Instruction.loadValue(loc(), null));
-    }
-
-    public DebugStatement(Location loc) {
-        super(loc);
-    }
-}

src/java/me/topchetoeu/jscript/core/compilation/control/DeleteStatement.java

@@ -1,27 +0,0 @@
-package me.topchetoeu.jscript.core.compilation.control;
-
-import me.topchetoeu.jscript.common.Location;
-import me.topchetoeu.jscript.core.compilation.CompileTarget;
-import me.topchetoeu.jscript.core.compilation.Instruction;
-import me.topchetoeu.jscript.core.compilation.Statement;
-import me.topchetoeu.jscript.core.engine.scope.ScopeRecord;
-
-public class DeleteStatement extends Statement {
-    public final Statement key;
-    public final Statement value;
-
-    @Override
-    public void compile(CompileTarget target, ScopeRecord scope, boolean pollute) {
-        value.compile(target, scope, true);
-        key.compile(target, scope, true);
-
-        target.add(Instruction.delete(loc()));
-        if (pollute) target.add(Instruction.loadValue(loc(), true));
-    }
-
-    public DeleteStatement(Location loc, Statement key, Statement value) {
-        super(loc);
-        this.key = key;
-        this.value = value;
-    }
-}

src/java/me/topchetoeu/jscript/core/compilation/control/DoWhileStatement.java

@@ -1,37 +0,0 @@
-package me.topchetoeu.jscript.core.compilation.control;
-
-import me.topchetoeu.jscript.common.Location;
-import me.topchetoeu.jscript.core.compilation.CompileTarget;
-import me.topchetoeu.jscript.core.compilation.Instruction;
-import me.topchetoeu.jscript.core.compilation.Statement;
-import me.topchetoeu.jscript.core.compilation.Instruction.BreakpointType;
-import me.topchetoeu.jscript.core.engine.scope.ScopeRecord;
-
-public class DoWhileStatement extends Statement {
-    public final Statement condition, body;
-    public final String label;
-
-    @Override
-    public void declare(ScopeRecord globScope) {
-        body.declare(globScope);
-    }
-
-    @Override
-    public void compile(CompileTarget target, ScopeRecord scope, boolean pollute) {
-        int start = target.size();
-        body.compile(target, scope, false, BreakpointType.STEP_OVER);
-        int mid = target.size();
-        condition.compile(target, scope, true, BreakpointType.STEP_OVER);
-        int end = target.size();
-
-        WhileStatement.replaceBreaks(target, label, start, mid - 1, mid, end + 1);
-        target.add(Instruction.jmpIf(loc(), start - end));
-    }
-
-    public DoWhileStatement(Location loc, String label, Statement condition, Statement body) {
-        super(loc);
-        this.label = label;
-        this.condition = condition;
-        this.body = body;
-    }
-}

src/java/me/topchetoeu/jscript/core/compilation/control/ForInStatement.java

@@ -1,73 +0,0 @@
-package me.topchetoeu.jscript.core.compilation.control;
-
-import me.topchetoeu.jscript.common.Location;
-import me.topchetoeu.jscript.core.compilation.CompileTarget;
-import me.topchetoeu.jscript.core.compilation.Instruction;
-import me.topchetoeu.jscript.core.compilation.Statement;
-import me.topchetoeu.jscript.core.compilation.Instruction.BreakpointType;
-import me.topchetoeu.jscript.core.engine.Operation;
-import me.topchetoeu.jscript.core.engine.scope.ScopeRecord;
-
-public class ForInStatement extends Statement {
-    public final String varName;
-    public final boolean isDeclaration;
-    public final Statement varValue, object, body;
-    public final String label;
-    public final Location varLocation;
-
-    @Override
-    public void declare(ScopeRecord globScope) {
-        body.declare(globScope);
-        if (isDeclaration) globScope.define(varName);
-    }
-
-    @Override
-    public void compile(CompileTarget target, ScopeRecord scope, boolean pollute) {
-        var key = scope.getKey(varName);
-
-        int first = target.size();
-        if (key instanceof String) target.add(Instruction.makeVar(loc(), (String)key));
-
-        if (varValue != null) {
-            varValue.compile(target, scope, true);
-            target.add(Instruction.storeVar(loc(), scope.getKey(varName)));
-        }
-
-        object.compile(target, scope, true, BreakpointType.STEP_OVER);
-        target.add(Instruction.keys(loc(), true));
-
-        int start = target.size();
-        target.add(Instruction.dup(loc()));
-        target.add(Instruction.loadValue(loc(), null));
-        target.add(Instruction.operation(loc(), Operation.EQUALS));
-        int mid = target.size();
-        target.add(Instruction.nop(loc()));
-
-        target.add(Instruction.loadMember(varLocation, "value"));
-        target.add(Instruction.storeVar(object.loc(), key));
-        target.setDebug(BreakpointType.STEP_OVER);
-
-        body.compile(target, scope, false, BreakpointType.STEP_OVER);
-
-        int end = target.size();
-
-        WhileStatement.replaceBreaks(target, label, mid + 1, end, start, end + 1);
-
-        target.add(Instruction.jmp(loc(), start - end));
-        target.add(Instruction.discard(loc()));
-        target.set(mid, Instruction.jmpIf(loc(), end - mid + 1));
-        if (pollute) target.add(Instruction.loadValue(loc(), null));
-        target.get(first).locate(loc());
-    }
-
-    public ForInStatement(Location loc, Location varLocation, String label, boolean isDecl, String varName, Statement varValue, Statement object, Statement body) {
-        super(loc);
-        this.varLocation = varLocation;
-        this.label = label;
-        this.isDeclaration = isDecl;
-        this.varName = varName;
-        this.varValue = varValue;
-        this.object = object;
-        this.body = body;
-    }
-}

src/java/me/topchetoeu/jscript/core/compilation/control/ForStatement.java

@@ -1,47 +0,0 @@
-package me.topchetoeu.jscript.core.compilation.control;
-
-import me.topchetoeu.jscript.common.Location;
-import me.topchetoeu.jscript.core.compilation.CompileTarget;
-import me.topchetoeu.jscript.core.compilation.Instruction;
-import me.topchetoeu.jscript.core.compilation.Statement;
-import me.topchetoeu.jscript.core.compilation.Instruction.BreakpointType;
-import me.topchetoeu.jscript.core.engine.scope.ScopeRecord;
-
-public class ForStatement extends Statement {
-    public final Statement declaration, assignment, condition, body;
-    public final String label;
-
-    @Override
-    public void declare(ScopeRecord globScope) {
-        declaration.declare(globScope);
-        body.declare(globScope);
-    }
-    @Override
-    public void compile(CompileTarget target, ScopeRecord scope, boolean pollute) {
-        declaration.compile(target, scope, false, BreakpointType.STEP_OVER);
-
-        int start = target.size();
-        condition.compile(target, scope, true, BreakpointType.STEP_OVER);
-        int mid = target.size();
-        target.add(Instruction.nop(null));
-        body.compile(target, scope, false, BreakpointType.STEP_OVER);
-        int beforeAssign = target.size();
-        assignment.compile(target, scope, false, BreakpointType.STEP_OVER);
-        int end = target.size();
-
-        WhileStatement.replaceBreaks(target, label, mid + 1, end, beforeAssign, end + 1);
-
-        target.add(Instruction.jmp(loc(), start - end));
-        target.set(mid, Instruction.jmpIfNot(loc(), end - mid + 1));
-        if (pollute) target.add(Instruction.loadValue(loc(), null));
-    }
-
-    public ForStatement(Location loc, String label, Statement declaration, Statement condition, Statement assignment, Statement body) {
-        super(loc);
-        this.label = label;
-        this.declaration = declaration;
-        this.condition = condition;
-        this.assignment = assignment;
-        this.body = body;
-    }
-}

src/java/me/topchetoeu/jscript/core/compilation/control/IfStatement.java

@@ -1,52 +0,0 @@
-package me.topchetoeu.jscript.core.compilation.control;
-
-import me.topchetoeu.jscript.common.Location;
-import me.topchetoeu.jscript.core.compilation.CompileTarget;
-import me.topchetoeu.jscript.core.compilation.Instruction;
-import me.topchetoeu.jscript.core.compilation.Statement;
-import me.topchetoeu.jscript.core.compilation.Instruction.BreakpointType;
-import me.topchetoeu.jscript.core.engine.scope.ScopeRecord;
-
-public class IfStatement extends Statement {
-    public final Statement condition, body, elseBody;
-
-    @Override
-    public void declare(ScopeRecord globScope) {
-        body.declare(globScope);
-        if (elseBody != null) elseBody.declare(globScope);
-    }
-
-    @Override public void compile(CompileTarget target, ScopeRecord scope, boolean pollute, BreakpointType breakpoint) {
-        condition.compile(target, scope, true, breakpoint);
-
-        if (elseBody == null) {
-            int i = target.size();
-            target.add(Instruction.nop(null));
-            body.compile(target, scope, pollute, breakpoint);
-            int endI = target.size();
-            target.set(i, Instruction.jmpIfNot(loc(), endI - i));
-        }
-        else {
-            int start = target.size();
-            target.add(Instruction.nop(null));
-            body.compile(target, scope, pollute, breakpoint);
-            target.add(Instruction.nop(null));
-            int mid = target.size();
-            elseBody.compile(target, scope, pollute, breakpoint);
-            int end = target.size();
-
-            target.set(start, Instruction.jmpIfNot(loc(), mid - start));
-            target.set(mid - 1, Instruction.jmp(loc(), end - mid + 1));
-        }
-    }
-    @Override public void compile(CompileTarget target, ScopeRecord scope, boolean pollute) {
-        compile(target, scope, pollute, BreakpointType.STEP_IN);
-    }
-
-    public IfStatement(Location loc, Statement condition, Statement body, Statement elseBody) {
-        super(loc);
-        this.condition = condition;
-        this.body = body;
-        this.elseBody = elseBody;
-    }
-}

src/java/me/topchetoeu/jscript/core/compilation/control/ReturnStatement.java

@@ -1,23 +0,0 @@
-package me.topchetoeu.jscript.core.compilation.control;
-
-import me.topchetoeu.jscript.common.Location;
-import me.topchetoeu.jscript.core.compilation.CompileTarget;
-import me.topchetoeu.jscript.core.compilation.Instruction;
-import me.topchetoeu.jscript.core.compilation.Statement;
-import me.topchetoeu.jscript.core.engine.scope.ScopeRecord;
-
-public class ReturnStatement extends Statement {
-    public final Statement value;
-
-    @Override
-    public void compile(CompileTarget target, ScopeRecord scope, boolean pollute) {
-        if (value == null) target.add(Instruction.loadValue(loc(), null));
-        else value.compile(target, scope, true);
-        target.add(Instruction.ret(loc()));
-    }
-
-    public ReturnStatement(Location loc, Statement value) {
-        super(loc);
-        this.value = value;
-    }
-}

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

@@ -1,87 +0,0 @@
-package me.topchetoeu.jscript.core.compilation.control;
-
-import java.util.HashMap;
-
-import me.topchetoeu.jscript.common.Location;
-import me.topchetoeu.jscript.core.compilation.CompileTarget;
-import me.topchetoeu.jscript.core.compilation.Instruction;
-import me.topchetoeu.jscript.core.compilation.Statement;
-import me.topchetoeu.jscript.core.compilation.Instruction.BreakpointType;
-import me.topchetoeu.jscript.core.compilation.Instruction.Type;
-import me.topchetoeu.jscript.core.engine.Operation;
-import me.topchetoeu.jscript.core.engine.scope.ScopeRecord;
-
-public class SwitchStatement extends Statement {
-    public static class SwitchCase {
-        public final Statement value;
-        public final int statementI;
-
-        public SwitchCase(Statement value, int statementI) {
-            this.value = value;
-            this.statementI = statementI;
-        }
-    }
-
-    public final Statement value;
-    public final SwitchCase[] cases;
-    public final Statement[] body;
-    public final int defaultI;
-
-    @Override
-    public void declare(ScopeRecord varsScope) {
-        for (var stm : body) stm.declare(varsScope);
-    }
-
-    @Override
-    public void compile(CompileTarget target, ScopeRecord scope, boolean pollute) {
-        var caseToStatement = new HashMap<Integer, Integer>();
-        var statementToIndex = new HashMap<Integer, Integer>();
-
-        value.compile(target, scope, true, BreakpointType.STEP_OVER);
-
-        for (var ccase : cases) {
-            target.add(Instruction.dup(loc()));
-            ccase.value.compile(target, scope, true);
-            target.add(Instruction.operation(loc(), Operation.EQUALS));
-            caseToStatement.put(target.size(), ccase.statementI);
-            target.add(Instruction.nop(null));
-        }
-
-        int start = target.size();
-
-        target.add(Instruction.nop(null));
-
-        for (var stm : body) {
-            statementToIndex.put(statementToIndex.size(), target.size());
-            stm.compile(target, scope, false, BreakpointType.STEP_OVER);
-        }
-
-        int end = target.size();
-        target.add(Instruction.discard(loc()));
-        if (pollute) target.add(Instruction.loadValue(loc(), null));
-
-        if (defaultI < 0 || defaultI >= body.length) target.set(start, Instruction.jmp(loc(), end - start));
-        else target.set(start, Instruction.jmp(loc(), statementToIndex.get(defaultI) - start));
-
-        for (int i = start; i < end; i++) {
-            var instr = target.get(i);
-            if (instr.type == Type.NOP && instr.is(0, "break") && instr.get(1) == null) {
-                target.set(i, Instruction.jmp(loc(), end - i).locate(instr.location));
-            }
-        }
-        for (var el : caseToStatement.entrySet()) {
-            var i = statementToIndex.get(el.getValue());
-            if (i == null) i = end;
-            target.set(el.getKey(), Instruction.jmpIf(loc(), i - el.getKey()));
-        }
-
-    }
-
-    public SwitchStatement(Location loc, Statement value, int defaultI, SwitchCase[] cases, Statement[] body) {
-        super(loc);
-        this.value = value;
-        this.defaultI = defaultI;
-        this.cases = cases;
-        this.body = body;
-    }
-}

src/java/me/topchetoeu/jscript/core/compilation/control/ThrowStatement.java

@@ -1,22 +0,0 @@
-package me.topchetoeu.jscript.core.compilation.control;
-
-import me.topchetoeu.jscript.common.Location;
-import me.topchetoeu.jscript.core.compilation.CompileTarget;
-import me.topchetoeu.jscript.core.compilation.Instruction;
-import me.topchetoeu.jscript.core.compilation.Statement;
-import me.topchetoeu.jscript.core.engine.scope.ScopeRecord;
-
-public class ThrowStatement extends Statement {
-    public final Statement value;
-
-    @Override
-    public void compile(CompileTarget target, ScopeRecord scope, boolean pollute) {
-        value.compile(target, scope, true);
-        target.add(Instruction.throwInstr(loc()));
-    }
-
-    public ThrowStatement(Location loc, Statement value) {
-        super(loc);
-        this.value = value;
-    }
-}

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

@@ -1,61 +0,0 @@
-package me.topchetoeu.jscript.core.compilation.control;
-
-import me.topchetoeu.jscript.common.Location;
-import me.topchetoeu.jscript.core.compilation.CompileTarget;
-import me.topchetoeu.jscript.core.compilation.Instruction;
-import me.topchetoeu.jscript.core.compilation.Statement;
-import me.topchetoeu.jscript.core.compilation.Instruction.BreakpointType;
-import me.topchetoeu.jscript.core.engine.scope.GlobalScope;
-import me.topchetoeu.jscript.core.engine.scope.LocalScopeRecord;
-import me.topchetoeu.jscript.core.engine.scope.ScopeRecord;
-
-public class TryStatement extends Statement {
-    public final Statement tryBody;
-    public final Statement catchBody;
-    public final Statement finallyBody;
-    public final String name;
-
-    @Override
-    public void declare(ScopeRecord globScope) {
-        tryBody.declare(globScope);
-        if (catchBody != null) catchBody.declare(globScope);
-        if (finallyBody != null) finallyBody.declare(globScope);
-    }
-
-    @Override
-    public void compile(CompileTarget target, ScopeRecord scope, boolean pollute, BreakpointType bpt) {
-        target.add(Instruction.nop(null));
-
-        int start = target.size(), catchStart = -1, finallyStart = -1;
-
-        tryBody.compile(target, scope, false);
-        target.add(Instruction.tryEnd(loc()));
-
-        if (catchBody != null) {
-            catchStart = target.size() - start;
-            var local = scope instanceof GlobalScope ? scope.child() : (LocalScopeRecord)scope;
-            local.define(name, true);
-            catchBody.compile(target, scope, false);
-            local.undefine();
-            target.add(Instruction.tryEnd(loc()));
-        }
-
-        if (finallyBody != null) {
-            finallyStart = target.size() - start;
-            finallyBody.compile(target, scope, false);
-            target.add(Instruction.tryEnd(loc()));
-        }
-
-        target.set(start - 1, Instruction.tryStart(loc(), catchStart, finallyStart, target.size() - start));
-        target.setDebug(start - 1, BreakpointType.STEP_OVER);
-        if (pollute) target.add(Instruction.loadValue(loc(), null));
-    }
-
-    public TryStatement(Location loc, Statement tryBody, Statement catchBody, Statement finallyBody, String name) {
-        super(loc);
-        this.tryBody = tryBody;
-        this.catchBody = catchBody;
-        this.finallyBody = finallyBody;
-        this.name = name;
-    }
-}

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

@@ -1,54 +0,0 @@
-package me.topchetoeu.jscript.core.compilation.control;
-
-import me.topchetoeu.jscript.common.Location;
-import me.topchetoeu.jscript.core.compilation.CompileTarget;
-import me.topchetoeu.jscript.core.compilation.Instruction;
-import me.topchetoeu.jscript.core.compilation.Statement;
-import me.topchetoeu.jscript.core.compilation.Instruction.BreakpointType;
-import me.topchetoeu.jscript.core.compilation.Instruction.Type;
-import me.topchetoeu.jscript.core.engine.scope.ScopeRecord;
-
-public class WhileStatement extends Statement {
-    public final Statement condition, body;
-    public final String label;
-
-    @Override
-    public void declare(ScopeRecord globScope) {
-        body.declare(globScope);
-    }
-    @Override
-    public void compile(CompileTarget target, ScopeRecord scope, boolean pollute) {
-        int start = target.size();
-        condition.compile(target, scope, true);
-        int mid = target.size();
-        target.add(Instruction.nop(null));
-        body.compile(target, scope, false, BreakpointType.STEP_OVER);
-
-        int end = target.size();
-
-        replaceBreaks(target, label, mid + 1, end, start, end + 1);
-
-        target.add(Instruction.jmp(loc(), start - end));
-        target.set(mid, Instruction.jmpIfNot(loc(), end - mid + 1));
-        if (pollute) target.add(Instruction.loadValue(loc(), null));
-    }
-
-    public WhileStatement(Location loc, String label, Statement condition, Statement body) {
-        super(loc);
-        this.label = label;
-        this.condition = condition;
-        this.body = body;
-    }
-
-    public static void replaceBreaks(CompileTarget target, String label, int start, int end, int continuePoint, int breakPoint) {
-        for (int i = start; i < end; i++) {
-            var instr = target.get(i);
-            if (instr.type == Type.NOP && instr.is(0, "cont") && (instr.get(1) == null || instr.is(1, label))) {
-                target.set(i, Instruction.jmp(instr.location, continuePoint - i).setDbgData(target.get(i)));
-            }
-            if (instr.type == Type.NOP && instr.is(0, "break") && (instr.get(1) == null || instr.is(1, label))) {
-                target.set(i, Instruction.jmp(instr.location, breakPoint - i).setDbgData(target.get(i)));
-            }
-        }
-    }
-}

src/java/me/topchetoeu/jscript/core/compilation/values/ArrayStatement.java

@@ -1,41 +0,0 @@
-package me.topchetoeu.jscript.core.compilation.values;
-
-import me.topchetoeu.jscript.common.Location;
-import me.topchetoeu.jscript.core.compilation.CompileTarget;
-import me.topchetoeu.jscript.core.compilation.Instruction;
-import me.topchetoeu.jscript.core.compilation.Statement;
-import me.topchetoeu.jscript.core.engine.scope.ScopeRecord;
-
-public class ArrayStatement extends Statement {
-    public final Statement[] statements;
-
-    @Override public boolean pure() {
-        for (var stm : statements) {
-            if (!stm.pure()) return false;
-        }
-
-        return true;
-    }
-
-    @Override
-    public void compile(CompileTarget target, ScopeRecord scope, boolean pollute) {
-        target.add(Instruction.loadArr(loc(), statements.length));
-
-        for (var i = 0; i < statements.length; i++) {
-            var el = statements[i];
-            if (el != null) {
-                target.add(Instruction.dup(loc()));
-                target.add(Instruction.loadValue(loc(), i));
-                el.compile(target, scope, true);
-                target.add(Instruction.storeMember(loc()));
-            }
-        }
-
-        if (!pollute) target.add(Instruction.discard(loc()));
-    }
-
-    public ArrayStatement(Location loc, Statement[] statements) {
-        super(loc);
-        this.statements = statements;
-    }
-}

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

@@ -1,51 +0,0 @@
-package me.topchetoeu.jscript.core.compilation.values;
-
-import me.topchetoeu.jscript.common.Location;
-import me.topchetoeu.jscript.core.compilation.CompileTarget;
-import me.topchetoeu.jscript.core.compilation.Instruction;
-import me.topchetoeu.jscript.core.compilation.Statement;
-import me.topchetoeu.jscript.core.compilation.Instruction.BreakpointType;
-import me.topchetoeu.jscript.core.engine.scope.ScopeRecord;
-
-public class CallStatement extends Statement {
-    public final Statement func;
-    public final Statement[] args;
-    public final boolean isNew;
-
-    @Override
-    public void compile(CompileTarget target, ScopeRecord scope, boolean pollute, BreakpointType type) {
-        if (isNew) func.compile(target, scope, true);
-        else if (func instanceof IndexStatement) {
-            ((IndexStatement)func).compile(target, scope, true, true);
-        }
-        else {
-            target.add(Instruction.loadValue(loc(), null));
-            func.compile(target, scope, true);
-        }
-
-        for (var arg : args) arg.compile(target, scope, true);
-
-        if (isNew) target.add(Instruction.callNew(loc(), args.length));
-        else target.add(Instruction.call(loc(), args.length));
-        target.setDebug(type);
-
-        if (!pollute) target.add(Instruction.discard(loc()));
-    }
-    @Override
-    public void compile(CompileTarget target, ScopeRecord scope, boolean pollute) {
-        compile(target, scope, pollute, BreakpointType.STEP_IN);
-    }
-
-    public CallStatement(Location loc, boolean isNew, Statement func, Statement ...args) {
-        super(loc);
-        this.isNew = isNew;
-        this.func = func;
-        this.args = args;
-    }
-    public CallStatement(Location loc, boolean isNew, Statement obj, Object key, Statement ...args) {
-        super(loc);
-        this.isNew = isNew;
-        this.func = new IndexStatement(loc, obj, new ConstantStatement(loc, key));
-        this.args = args;
-    }
-}

src/java/me/topchetoeu/jscript/core/compilation/values/ChangeStatement.java

@@ -1,32 +0,0 @@
-package me.topchetoeu.jscript.core.compilation.values;
-
-import me.topchetoeu.jscript.common.Location;
-import me.topchetoeu.jscript.core.compilation.AssignableStatement;
-import me.topchetoeu.jscript.core.compilation.CompileTarget;
-import me.topchetoeu.jscript.core.compilation.Instruction;
-import me.topchetoeu.jscript.core.compilation.Statement;
-import me.topchetoeu.jscript.core.engine.Operation;
-import me.topchetoeu.jscript.core.engine.scope.ScopeRecord;
-
-public class ChangeStatement extends Statement {
-    public final AssignableStatement value;
-    public final double addAmount;
-    public final boolean postfix;
-
-    @Override
-    public void compile(CompileTarget target, ScopeRecord scope, boolean pollute) {
-        value.toAssign(new ConstantStatement(loc(), -addAmount), Operation.SUBTRACT).compile(target, scope, true);
-        if (!pollute) target.add(Instruction.discard(loc()));
-        else if (postfix) {
-            target.add(Instruction.loadValue(loc(), addAmount));
-            target.add(Instruction.operation(loc(), Operation.SUBTRACT));
-        }
-    }
-
-    public ChangeStatement(Location loc, AssignableStatement value, double addAmount, boolean postfix) {
-        super(loc);
-        this.value = value;
-        this.addAmount = addAmount;
-        this.postfix = postfix;
-    }
-}

src/java/me/topchetoeu/jscript/core/compilation/values/ConstantStatement.java

@@ -1,23 +0,0 @@
-package me.topchetoeu.jscript.core.compilation.values;
-
-import me.topchetoeu.jscript.common.Location;
-import me.topchetoeu.jscript.core.compilation.CompileTarget;
-import me.topchetoeu.jscript.core.compilation.Instruction;
-import me.topchetoeu.jscript.core.compilation.Statement;
-import me.topchetoeu.jscript.core.engine.scope.ScopeRecord;
-
-public class ConstantStatement extends Statement {
-    public final Object value;
-
-    @Override public boolean pure() { return true; }
-
-    @Override
-    public void compile(CompileTarget target, ScopeRecord scope, boolean pollute) {
-        if (pollute) target.add(Instruction.loadValue(loc(), value));
-    }
-
-    public ConstantStatement(Location loc, Object val) {
-        super(loc);
-        this.value = val;
-    }
-}

src/java/me/topchetoeu/jscript/core/compilation/values/DiscardStatement.java

@@ -1,24 +0,0 @@
-package me.topchetoeu.jscript.core.compilation.values;
-
-import me.topchetoeu.jscript.common.Location;
-import me.topchetoeu.jscript.core.compilation.CompileTarget;
-import me.topchetoeu.jscript.core.compilation.Instruction;
-import me.topchetoeu.jscript.core.compilation.Statement;
-import me.topchetoeu.jscript.core.engine.scope.ScopeRecord;
-
-public class DiscardStatement extends Statement {
-    public final Statement value;
-
-    @Override public boolean pure() { return value.pure(); }
-
-    @Override
-    public void compile(CompileTarget target, ScopeRecord scope, boolean pollute) {
-        value.compile(target, scope, false);
-        if (pollute) target.add(Instruction.loadValue(loc(), null));
-    }
-
-    public DiscardStatement(Location loc, Statement val) {
-        super(loc);
-        this.value = val;
-    }
-}

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

@@ -1,139 +0,0 @@
-package me.topchetoeu.jscript.core.compilation.values;
-
-import java.util.Random;
-
-import me.topchetoeu.jscript.common.Location;
-import me.topchetoeu.jscript.core.compilation.CompileTarget;
-import me.topchetoeu.jscript.core.compilation.CompoundStatement;
-import me.topchetoeu.jscript.core.compilation.FunctionBody;
-import me.topchetoeu.jscript.core.compilation.Instruction;
-import me.topchetoeu.jscript.core.compilation.Statement;
-import me.topchetoeu.jscript.core.compilation.Instruction.BreakpointType;
-import me.topchetoeu.jscript.core.compilation.Instruction.Type;
-import me.topchetoeu.jscript.core.engine.scope.ScopeRecord;
-import me.topchetoeu.jscript.core.exceptions.SyntaxException;
-
-public class FunctionStatement extends Statement {
-    public final CompoundStatement body;
-    public final String varName;
-    public final String[] args;
-    public final boolean statement;
-    public final Location end;
-
-    private static Random rand = new Random();
-
-    @Override public boolean pure() { return varName == null && statement; }
-
-    @Override
-    public void declare(ScopeRecord scope) {
-        if (varName != null && statement) scope.define(varName);
-    }
-
-    public static void checkBreakAndCont(CompileTarget 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") ) {
-                    throw new SyntaxException(target.get(i).location, "Break was placed outside a loop.");
-                }
-                if (target.get(i).is(0, "cont")) {
-                    throw new SyntaxException(target.get(i).location, "Continue was placed outside a loop.");
-                }
-            }
-        }
-    }
-
-    private long compileBody(CompileTarget target, ScopeRecord scope, boolean polute, BreakpointType bp) {
-        for (var i = 0; i < args.length; i++) {
-            for (var j = 0; j < i; j++) {
-                if (args[i].equals(args[j])) {
-                    throw new SyntaxException(loc(), "Duplicate parameter '" + args[i] + "'.");
-                }
-            }
-        }
-
-        var id = rand.nextLong();
-        var subscope = scope.child();
-        var subtarget = new CompileTarget(target.functions, target.breakpoints);
-
-        subscope.define("this");
-        var argsVar = subscope.define("arguments");
-
-        if (args.length > 0) {
-            for (var i = 0; i < args.length; i++) {
-                subtarget.add(Instruction.loadVar(loc(), argsVar));
-                subtarget.add(Instruction.loadMember(loc(), i));
-                subtarget.add(Instruction.storeVar(loc(), subscope.define(args[i])));
-            }
-        }
-
-        if (!statement && this.varName != null) {
-            subtarget.add(Instruction.storeSelfFunc(loc(), (int)subscope.define(this.varName)));
-            subtarget.setDebug(bp);
-        }
-
-        body.declare(subscope);
-        body.compile(subtarget, subscope, false);
-        subtarget.add(Instruction.ret(end));
-        checkBreakAndCont(subtarget, 0);
-
-        if (polute) target.add(Instruction.loadFunc(loc(), id, subscope.getCaptures()));
-        target.functions.put(id, new FunctionBody(
-            subscope.localsCount(), args.length,
-            subtarget.array(), subscope.captures(), subscope.locals()
-        ));
-
-        return id;
-    }
-
-    public void compile(CompileTarget target, ScopeRecord scope, boolean pollute, String name, BreakpointType bp) {
-        if (this.varName != null) name = this.varName;
-
-        var hasVar = this.varName != null && statement;
-        var hasName = name != null;
-
-        compileBody(target, scope, pollute || hasVar || hasName, bp);
-
-        if (hasName) {
-            if (pollute || hasVar) target.add(Instruction.dup(loc()));
-            target.add(Instruction.loadValue(loc(), "name"));
-            target.add(Instruction.loadValue(loc(), name));
-            target.add(Instruction.storeMember(loc()));
-        }
-
-        if (hasVar) {
-            var key = scope.getKey(this.varName);
-
-            if (key instanceof String) target.add(Instruction.makeVar(loc(), (String)key));
-            target.add(Instruction.storeVar(loc(), scope.getKey(this.varName), false));
-        }
-    }
-    public void compile(CompileTarget target, ScopeRecord scope, boolean pollute, String name) {
-        compile(target, scope, pollute, name, BreakpointType.NONE);
-    }
-    @Override public void compile(CompileTarget target, ScopeRecord scope, boolean pollute, BreakpointType bp) {
-        compile(target, scope, pollute, (String)null, bp);
-    }
-    @Override public void compile(CompileTarget target, ScopeRecord scope, boolean pollute) {
-        compile(target, scope, pollute, (String)null, BreakpointType.NONE);
-    }
-
-    public FunctionStatement(Location loc, Location end, String varName, String[] args, boolean statement, CompoundStatement body) {
-        super(loc);
-
-        this.end = end;
-        this.varName = varName;
-        this.statement = statement;
-
-        this.args = args;
-        this.body = body;
-    }
-
-    public static void compileWithName(Statement stm, CompileTarget target, ScopeRecord scope, boolean pollute, String name) {
-        if (stm instanceof FunctionStatement) ((FunctionStatement)stm).compile(target, scope, pollute, name);
-        else stm.compile(target, scope, pollute);
-    }
-    public static void compileWithName(Statement stm, CompileTarget target, ScopeRecord scope, boolean pollute, String name, BreakpointType bp) {
-        if (stm instanceof FunctionStatement) ((FunctionStatement)stm).compile(target, scope, pollute, name, bp);
-        else stm.compile(target, scope, pollute, bp);
-    }
-}

src/java/me/topchetoeu/jscript/core/compilation/values/GlobalThisStatement.java

@@ -1,20 +0,0 @@
-package me.topchetoeu.jscript.core.compilation.values;
-
-import me.topchetoeu.jscript.common.Location;
-import me.topchetoeu.jscript.core.compilation.CompileTarget;
-import me.topchetoeu.jscript.core.compilation.Instruction;
-import me.topchetoeu.jscript.core.compilation.Statement;
-import me.topchetoeu.jscript.core.engine.scope.ScopeRecord;
-
-public class GlobalThisStatement extends Statement {
-    @Override public boolean pure() { return true; }
-
-    @Override
-    public void compile(CompileTarget target, ScopeRecord scope, boolean pollute) {
-        if (pollute) target.add(Instruction.loadGlob(loc()));
-    }
-
-    public GlobalThisStatement(Location loc) {
-        super(loc);
-    }
-}

src/java/me/topchetoeu/jscript/core/compilation/values/IndexAssignStatement.java

@@ -1,48 +0,0 @@
-package me.topchetoeu.jscript.core.compilation.values;
-
-import me.topchetoeu.jscript.common.Location;
-import me.topchetoeu.jscript.core.compilation.CompileTarget;
-import me.topchetoeu.jscript.core.compilation.Instruction;
-import me.topchetoeu.jscript.core.compilation.Statement;
-import me.topchetoeu.jscript.core.compilation.Instruction.BreakpointType;
-import me.topchetoeu.jscript.core.engine.Operation;
-import me.topchetoeu.jscript.core.engine.scope.ScopeRecord;
-
-public class IndexAssignStatement extends Statement {
-    public final Statement object;
-    public final Statement index;
-    public final Statement value;
-    public final Operation operation;
-
-    @Override
-    public void compile(CompileTarget target, ScopeRecord scope, boolean pollute) {
-        if (operation != null) {
-            object.compile(target, scope, true);
-            index.compile(target, scope, true);
-            target.add(Instruction.dup(loc(), 2));
-
-            target.add(Instruction.loadMember(loc()));
-            value.compile(target, scope, true);
-            target.add(Instruction.operation(loc(), operation));
-
-            target.add(Instruction.storeMember(loc(), pollute));
-            target.setDebug(BreakpointType.STEP_IN);
-        }
-        else {
-            object.compile(target, scope, true);
-            index.compile(target, scope, true);
-            value.compile(target, scope, true);
-
-            target.add(Instruction.storeMember(loc(), pollute));
-            target.setDebug(BreakpointType.STEP_IN);
-        }
-    }
-
-    public IndexAssignStatement(Location loc, Statement object, Statement index, Statement value, Operation operation) {
-        super(loc);
-        this.object = object;
-        this.index = index;
-        this.value = value;
-        this.operation = operation;
-    }
-}

src/java/me/topchetoeu/jscript/core/compilation/values/IndexStatement.java

@@ -1,49 +0,0 @@
-package me.topchetoeu.jscript.core.compilation.values;
-
-import me.topchetoeu.jscript.common.Location;
-import me.topchetoeu.jscript.core.compilation.AssignableStatement;
-import me.topchetoeu.jscript.core.compilation.CompileTarget;
-import me.topchetoeu.jscript.core.compilation.Instruction;
-import me.topchetoeu.jscript.core.compilation.Statement;
-import me.topchetoeu.jscript.core.compilation.Instruction.BreakpointType;
-import me.topchetoeu.jscript.core.engine.Operation;
-import me.topchetoeu.jscript.core.engine.scope.ScopeRecord;
-
-public class IndexStatement extends AssignableStatement {
-    public final Statement object;
-    public final Statement index;
-
-    @Override
-    public Statement toAssign(Statement val, Operation operation) {
-        return new IndexAssignStatement(loc(), object, index, val, operation);
-    }
-    public void compile(CompileTarget target, ScopeRecord scope, boolean dupObj, boolean pollute) {
-        object.compile(target, scope, true);
-        if (dupObj) target.add(Instruction.dup(loc()));
-        if (index instanceof ConstantStatement) {
-            target.add(Instruction.loadMember(loc(), ((ConstantStatement)index).value));
-            target.setDebug(BreakpointType.STEP_IN);
-            return;
-        }
-
-        index.compile(target, scope, true);
-        target.add(Instruction.loadMember(loc()));
-        target.setDebug(BreakpointType.STEP_IN);
-        if (!pollute) target.add(Instruction.discard(loc()));
-    }
-    @Override
-    public void compile(CompileTarget target, ScopeRecord scope, boolean pollute) {
-        compile(target, scope, false, pollute);
-    }
-
-    public IndexStatement(Location loc, Statement object, Statement index) {
-        super(loc);
-        this.object = object;
-        this.index = index;
-    }
-    public IndexStatement(Location loc, Statement object, Object index) {
-        super(loc);
-        this.object = object;
-        this.index = new ConstantStatement(loc, index);
-    }
-}

src/java/me/topchetoeu/jscript/core/compilation/values/LazyAndStatement.java

@@ -1,39 +0,0 @@
-package me.topchetoeu.jscript.core.compilation.values;
-
-import me.topchetoeu.jscript.common.Location;
-import me.topchetoeu.jscript.core.compilation.CompileTarget;
-import me.topchetoeu.jscript.core.compilation.Instruction;
-import me.topchetoeu.jscript.core.compilation.Statement;
-import me.topchetoeu.jscript.core.engine.scope.ScopeRecord;
-import me.topchetoeu.jscript.core.engine.values.Values;
-
-public class LazyAndStatement extends Statement {
-    public final Statement first, second;
-
-    @Override public boolean pure() { return first.pure() && second.pure(); }
-
-    @Override
-    public void compile(CompileTarget target, ScopeRecord scope, boolean pollute) {
-        if (first instanceof ConstantStatement) {
-            if (Values.not(((ConstantStatement)first).value)) {
-                first.compile(target, scope, pollute);
-            }
-            else second.compile(target, scope, pollute);
-            return;
-        }
-
-        first.compile(target, scope, true);
-        if (pollute) target.add(Instruction.dup(loc()));
-        int start = target.size();
-        target.add(Instruction.nop(null));
-        if (pollute) target.add(Instruction.discard(loc()));
-        second.compile(target, scope, pollute);
-        target.set(start, Instruction.jmpIfNot(loc(), target.size() - start));
-    }
-
-    public LazyAndStatement(Location loc, Statement first, Statement second) {
-        super(loc);
-        this.first = first;
-        this.second = second;
-    }
-}

src/java/me/topchetoeu/jscript/core/compilation/values/LazyOrStatement.java

@@ -1,39 +0,0 @@
-package me.topchetoeu.jscript.core.compilation.values;
-
-import me.topchetoeu.jscript.common.Location;
-import me.topchetoeu.jscript.core.compilation.CompileTarget;
-import me.topchetoeu.jscript.core.compilation.Instruction;
-import me.topchetoeu.jscript.core.compilation.Statement;
-import me.topchetoeu.jscript.core.engine.scope.ScopeRecord;
-import me.topchetoeu.jscript.core.engine.values.Values;
-
-public class LazyOrStatement extends Statement {
-    public final Statement first, second;
-
-    @Override public boolean pure() { return first.pure() && second.pure(); }
-
-    @Override
-    public void compile(CompileTarget target, ScopeRecord scope, boolean pollute) {
-        if (first instanceof ConstantStatement) {
-            if (Values.not(((ConstantStatement)first).value)) {
-                second.compile(target, scope, pollute);
-            }
-            else first.compile(target, scope, pollute);
-            return;
-        }
-
-        first.compile(target, scope, true);
-        if (pollute) target.add(Instruction.dup(loc()));
-        int start = target.size();
-        target.add(Instruction.nop(null));
-        if (pollute) target.add(Instruction.discard(loc()));
-        second.compile(target, scope, pollute);
-        target.set(start, Instruction.jmpIf(loc(), target.size() - start));
-    }
-
-    public LazyOrStatement(Location loc, Statement first, Statement second) {
-        super(loc);
-        this.first = first;
-        this.second = second;
-    }
-}

src/java/me/topchetoeu/jscript/core/compilation/values/ObjectStatement.java

@@ -1,63 +0,0 @@
-package me.topchetoeu.jscript.core.compilation.values;
-
-import java.util.ArrayList;
-import java.util.Map;
-
-import me.topchetoeu.jscript.common.Location;
-import me.topchetoeu.jscript.core.compilation.CompileTarget;
-import me.topchetoeu.jscript.core.compilation.Instruction;
-import me.topchetoeu.jscript.core.compilation.Statement;
-import me.topchetoeu.jscript.core.engine.scope.ScopeRecord;
-
-public class ObjectStatement extends Statement {
-    public final Map<Object, Statement> map;
-    public final Map<Object, FunctionStatement> getters;
-    public final Map<Object, FunctionStatement> setters;
-
-    @Override public boolean pure() {
-        for (var el : map.values()) {
-            if (!el.pure()) return false;
-        }
-
-        return true;
-    }
-
-    @Override
-    public void compile(CompileTarget target, ScopeRecord scope, boolean pollute) {
-        target.add(Instruction.loadObj(loc()));
-
-        for (var el : map.entrySet()) {
-            target.add(Instruction.dup(loc()));
-            target.add(Instruction.loadValue(loc(), el.getKey()));
-            var val = el.getValue();
-            FunctionStatement.compileWithName(val, target, scope, true, el.getKey().toString());
-            target.add(Instruction.storeMember(loc()));
-        }
-
-        var keys = new ArrayList<Object>();
-        keys.addAll(getters.keySet());
-        keys.addAll(setters.keySet());
-
-        for (var key : keys) {
-            if (key instanceof String) target.add(Instruction.loadValue(loc(), (String)key));
-            else target.add(Instruction.loadValue(loc(), (Double)key));
-
-            if (getters.containsKey(key)) getters.get(key).compile(target, scope, true);
-            else target.add(Instruction.loadValue(loc(), null));
-
-            if (setters.containsKey(key)) setters.get(key).compile(target, scope, true);
-            else target.add(Instruction.loadValue(loc(), null));
-
-            target.add(Instruction.defProp(loc()));
-        }
-
-        if (!pollute) target.add(Instruction.discard(loc()));
-    }
-
-    public ObjectStatement(Location loc, Map<Object, Statement> map, Map<Object, FunctionStatement> getters, Map<Object, FunctionStatement> setters) {
-        super(loc);
-        this.map = map;
-        this.getters = getters;
-        this.setters = setters;
-    }
-}

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

@@ -1,37 +0,0 @@
-package me.topchetoeu.jscript.core.compilation.values;
-
-import me.topchetoeu.jscript.common.Location;
-import me.topchetoeu.jscript.core.compilation.CompileTarget;
-import me.topchetoeu.jscript.core.compilation.Instruction;
-import me.topchetoeu.jscript.core.compilation.Statement;
-import me.topchetoeu.jscript.core.engine.Operation;
-import me.topchetoeu.jscript.core.engine.scope.ScopeRecord;
-
-public class OperationStatement extends Statement {
-    public final Statement[] args;
-    public final Operation operation;
-
-    @Override public boolean pure() {
-        for (var el : args) {
-            if (!el.pure()) return false;
-        }
-
-        return true;
-    }
-
-    @Override
-    public void compile(CompileTarget target, ScopeRecord scope, boolean pollute) {
-        for (var arg : args) {
-            arg.compile(target, scope, true);
-        }
-
-        if (pollute) target.add(Instruction.operation(loc(), operation));
-        else target.add(Instruction.discard(loc()));
-    }
-
-    public OperationStatement(Location loc, Operation operation, Statement ...args) {
-        super(loc);
-        this.operation = operation;
-        this.args = args;
-    }
-}

src/java/me/topchetoeu/jscript/core/compilation/values/RegexStatement.java

@@ -1,26 +0,0 @@
-package me.topchetoeu.jscript.core.compilation.values;
-
-import me.topchetoeu.jscript.common.Location;
-import me.topchetoeu.jscript.core.compilation.CompileTarget;
-import me.topchetoeu.jscript.core.compilation.Instruction;
-import me.topchetoeu.jscript.core.compilation.Statement;
-import me.topchetoeu.jscript.core.engine.scope.ScopeRecord;
-
-public class RegexStatement extends Statement {
-    public final String pattern, flags;
-
-    // Not really pure, since a function is called, but can be ignored.
-    @Override public boolean pure() { return true; }
-
-    @Override
-    public void compile(CompileTarget target, ScopeRecord scope, boolean pollute) {
-        target.add(Instruction.loadRegex(loc(), pattern, flags));
-        if (!pollute) target.add(Instruction.discard(loc()));
-    }
-
-    public RegexStatement(Location loc, String pattern, String flags) {
-        super(loc);
-        this.pattern = pattern;
-        this.flags = flags;
-    }
-}

src/java/me/topchetoeu/jscript/core/compilation/values/TypeofStatement.java

@@ -1,33 +0,0 @@
-package me.topchetoeu.jscript.core.compilation.values;
-
-import me.topchetoeu.jscript.common.Location;
-import me.topchetoeu.jscript.core.compilation.CompileTarget;
-import me.topchetoeu.jscript.core.compilation.Instruction;
-import me.topchetoeu.jscript.core.compilation.Statement;
-import me.topchetoeu.jscript.core.engine.scope.ScopeRecord;
-
-public class TypeofStatement extends Statement {
-    public final Statement value;
-
-    // Not really pure, since a variable from the global scope could be accessed,
-    // which could lead to code execution, that would get omitted
-    @Override public boolean pure() { return true; }
-
-    @Override
-    public void compile(CompileTarget target, ScopeRecord scope, boolean pollute) {
-        if (value instanceof VariableStatement) {
-            var i = scope.getKey(((VariableStatement)value).name);
-            if (i instanceof String) {
-                target.add(Instruction.typeof(loc(), (String)i));
-                return;
-            }
-        }
-        value.compile(target, scope, pollute);
-        target.add(Instruction.typeof(loc()));
-    }
-
-    public TypeofStatement(Location loc, Statement value) {
-        super(loc);
-        this.value = value;
-    }
-}

src/java/me/topchetoeu/jscript/core/compilation/values/VariableAssignStatement.java

@@ -1,38 +0,0 @@
-package me.topchetoeu.jscript.core.compilation.values;
-
-import me.topchetoeu.jscript.common.Location;
-import me.topchetoeu.jscript.core.compilation.CompileTarget;
-import me.topchetoeu.jscript.core.compilation.Instruction;
-import me.topchetoeu.jscript.core.compilation.Statement;
-import me.topchetoeu.jscript.core.engine.Operation;
-import me.topchetoeu.jscript.core.engine.scope.ScopeRecord;
-
-public class VariableAssignStatement extends Statement {
-    public final String name;
-    public final Statement value;
-    public final Operation operation;
-
-    @Override public boolean pure() { return false; }
-
-    @Override
-    public void compile(CompileTarget target, ScopeRecord scope, boolean pollute) {
-        var i = scope.getKey(name);
-        if (operation != null) {
-            target.add(Instruction.loadVar(loc(), i));
-            FunctionStatement.compileWithName(value, target, scope, true, name);
-            target.add(Instruction.operation(loc(), operation));
-            target.add(Instruction.storeVar(loc(), i, pollute));
-        }
-        else {
-            FunctionStatement.compileWithName(value, target, scope, true, name);
-            target.add(Instruction.storeVar(loc(), i, pollute));
-        }
-    }
-
-    public VariableAssignStatement(Location loc, String name, Statement val, Operation operation) {
-        super(loc);
-        this.name = name;
-        this.value = val;
-        this.operation = operation;
-    }
-}

src/java/me/topchetoeu/jscript/core/compilation/values/VariableIndexStatement.java

@@ -1,23 +0,0 @@
-package me.topchetoeu.jscript.core.compilation.values;
-
-import me.topchetoeu.jscript.common.Location;
-import me.topchetoeu.jscript.core.compilation.CompileTarget;
-import me.topchetoeu.jscript.core.compilation.Instruction;
-import me.topchetoeu.jscript.core.compilation.Statement;
-import me.topchetoeu.jscript.core.engine.scope.ScopeRecord;
-
-public class VariableIndexStatement extends Statement {
-    public final int index;
-
-    @Override public boolean pure() { return true; }
-
-    @Override
-    public void compile(CompileTarget target, ScopeRecord scope, boolean pollute) {
-        if (pollute) target.add(Instruction.loadVar(loc(), index));
-    }
-
-    public VariableIndexStatement(Location loc, int i) {
-        super(loc);
-        this.index = i;
-    }
-}

src/java/me/topchetoeu/jscript/core/compilation/values/VariableStatement.java

@@ -1,32 +0,0 @@
-package me.topchetoeu.jscript.core.compilation.values;
-
-import me.topchetoeu.jscript.common.Location;
-import me.topchetoeu.jscript.core.compilation.AssignableStatement;
-import me.topchetoeu.jscript.core.compilation.CompileTarget;
-import me.topchetoeu.jscript.core.compilation.Instruction;
-import me.topchetoeu.jscript.core.compilation.Statement;
-import me.topchetoeu.jscript.core.engine.Operation;
-import me.topchetoeu.jscript.core.engine.scope.ScopeRecord;
-
-public class VariableStatement extends AssignableStatement {
-    public final String name;
-
-    @Override public boolean pure() { return false; }
-
-    @Override
-    public Statement toAssign(Statement val, Operation operation) {
-        return new VariableAssignStatement(loc(), name, val, operation);
-    }
-
-    @Override
-    public void compile(CompileTarget target, ScopeRecord scope, boolean pollute) {
-        var i = scope.getKey(name);
-        target.add(Instruction.loadVar(loc(), i));
-        if (!pollute) target.add(Instruction.discard(loc()));
-    }
-
-    public VariableStatement(Location loc, String name) {
-        super(loc);
-        this.name = name;
-    }
-}

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

@@ -1,166 +0,0 @@
-package me.topchetoeu.jscript.core.engine;
-
-import java.util.ArrayList;
-import java.util.Arrays;
-import java.util.Iterator;
-import java.util.List;
-import java.util.TreeSet;
-import java.util.stream.Collectors;
-import java.util.stream.Stream;
-import java.util.stream.StreamSupport;
-
-import me.topchetoeu.jscript.common.Filename;
-import me.topchetoeu.jscript.common.Location;
-import me.topchetoeu.jscript.core.engine.debug.DebugContext;
-import me.topchetoeu.jscript.core.engine.frame.CodeFrame;
-import me.topchetoeu.jscript.core.engine.values.ArrayValue;
-import me.topchetoeu.jscript.core.engine.values.FunctionValue;
-import me.topchetoeu.jscript.core.engine.values.Symbol;
-import me.topchetoeu.jscript.core.engine.values.Values;
-import me.topchetoeu.jscript.core.exceptions.EngineException;
-import me.topchetoeu.jscript.lib.EnvironmentLib;
-import me.topchetoeu.jscript.utils.mapping.SourceMap;
-
-public class Context implements Extensions {
-    public static final Context NULL = new Context(null);
-
-    public final Context parent;
-    public final Environment environment;
-    public final CodeFrame frame;
-    public final Engine engine;
-    public final int stackSize;
-
-    @Override public <T> void add(Symbol key, T obj) {
-        if (environment != null) environment.add(key, obj);
-        else if (engine != null) engine.add(key, obj);
-    }
-    @Override public <T> T get(Symbol key) {
-        if (environment != null && environment.has(key)) return environment.get(key);
-        else if (engine != null && engine.has(key)) return engine.get(key);
-        return null;
-    }
-    @Override public boolean has(Symbol key) {
-        return
-            environment != null && environment.has(key) ||
-            engine != null && engine.has(key);
-    }
-    @Override public boolean remove(Symbol key) {
-        var res = false;
-
-        if (environment != null) res |= environment.remove(key);
-        else if (engine != null) res |= engine.remove(key);
-
-        return res;
-    }
-    @Override public Iterable<Symbol> keys() {
-        if (engine == null && environment == null) return List.of();
-        if (engine == null) return environment.keys();
-        if (environment == null) return engine.keys();
-
-        return () -> Stream.concat(
-            StreamSupport.stream(engine.keys().spliterator(), false),
-            StreamSupport.stream(environment.keys().spliterator(), false)
-        ).distinct().iterator();
-    }
-
-    public FunctionValue compile(Filename filename, String raw) {
-        var env = environment;
-        var result = Environment.compileFunc(this).call(this, null, raw, filename.toString(), new EnvironmentLib(env));
-
-        var function = (FunctionValue)Values.getMember(this, result, "function");
-        if (!DebugContext.enabled(this)) return function;
-
-        var rawMapChain = ((ArrayValue)Values.getMember(this, result, "mapChain")).toArray();
-        var breakpoints = new TreeSet<>(
-            Arrays.stream(((ArrayValue)Values.getMember(this, result, "breakpoints")).toArray())
-                .map(v -> Location.parse(Values.toString(this, v)))
-                .collect(Collectors.toList())
-        );
-        var maps = new SourceMap[rawMapChain.length];
-
-        for (var i = 0; i < maps.length; i++) maps[i] = SourceMap.parse(Values.toString(this, (String)rawMapChain[i]));
-
-        var map = SourceMap.chain(maps);
-
-        if (map != null) {
-            var newBreakpoints = new TreeSet<Location>();
-            for (var bp : breakpoints) {
-                bp = map.toCompiled(bp);
-                if (bp != null) newBreakpoints.add(bp);
-            }
-            breakpoints = newBreakpoints;
-        }
-
-        DebugContext.get(this).onSource(filename, raw, breakpoints, map);
-
-        return function;
-    }
-
-    public Context pushFrame(CodeFrame frame) {
-        var res = new Context(this, frame.function.environment, frame, engine, stackSize + 1);
-        return res;
-    }
-
-    public Iterable<CodeFrame> frames() {
-        var self = this;
-        return () -> new Iterator<CodeFrame>() {
-            private Context curr = self;
-
-            private void update() {
-                while (curr != null && curr.frame == null) curr = curr.parent;
-            }
-
-            @Override public boolean hasNext() {
-                update();
-                return curr != null;
-            }
-            @Override public CodeFrame next() {
-                update();
-                var res = curr.frame;
-                curr = curr.parent;
-                return res;
-            }
-        };
-    }
-    public List<String> stackTrace() {
-        var res = new ArrayList<String>();
-
-        for (var el : frames()) {
-            var name = el.function.name;
-            Location loc = null;
-
-            for (var j = el.codePtr; j >= 0 && loc == null; j--) loc = el.function.body[j].location;
-            if (loc == null) loc = el.function.loc();
-
-            var trace = "";
-
-            if (loc != null) trace += "at " + loc.toString() + " ";
-            if (name != null && !name.equals("")) trace += "in " + name + " ";
-
-            trace = trace.trim();
-
-            if (!trace.equals("")) res.add(trace);
-        }
-
-        return res;
-    }
-
-    private Context(Context parent, Environment environment, CodeFrame frame, Engine engine, int stackSize) {
-        this.parent = parent;
-        this.environment = environment;
-        this.frame = frame;
-        this.engine = engine;
-        this.stackSize = stackSize;
-
-        if (hasNotNull(Environment.MAX_STACK_COUNT) && stackSize > (int)get(Environment.MAX_STACK_COUNT)) {
-            throw EngineException.ofRange("Stack overflow!");
-        }
-    }
-
-    public Context(Engine engine) {
-        this(null, null, null, engine, 0);
-    }
-    public Context(Engine engine, Environment env) {
-        this(null, env, null, engine, 0);
-    }
-}

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

@@ -1,57 +0,0 @@
-package me.topchetoeu.jscript.core.engine;
-
-import java.util.HashMap;
-
-import me.topchetoeu.jscript.common.Filename;
-import me.topchetoeu.jscript.common.events.Awaitable;
-import me.topchetoeu.jscript.core.compilation.FunctionBody;
-import me.topchetoeu.jscript.core.engine.values.FunctionValue;
-import me.topchetoeu.jscript.core.engine.values.Symbol;
-
-public class Engine extends EventLoop implements Extensions {
-    public static final HashMap<Long, FunctionBody> functions = new HashMap<>();
-
-    private final Environment env = new Environment();
-
-    @Override
-    public <T> void add(Symbol key, T obj) {
-        this.env.add(key, obj);
-    }
-    @Override
-    public <T> T get(Symbol key) {
-        return this.env.get(key);
-    }
-    @Override
-    public boolean has(Symbol key) {
-        return this.env.has(key);
-    }
-    @Override
-    public boolean remove(Symbol key) {
-        return this.env.remove(key);
-    }
-    @Override
-    public Iterable<Symbol> keys() {
-        return env.keys();
-    }
-
-    public Engine copy() {
-        var res = new Engine();
-        res.env.addAll(env);
-        return res;
-    }
-
-    public Awaitable<Object> pushMsg(boolean micro, Environment env, FunctionValue func, Object thisArg, Object ...args) {
-        return pushMsg(() -> {
-            return func.call(new Context(this, env), thisArg, args);
-        }, micro);
-    }
-    public Awaitable<Object> pushMsg(boolean micro, Environment env, Filename filename, String raw, Object thisArg, Object ...args) {
-        return pushMsg(() -> {
-            var ctx = new Context(this, env);
-            return ctx.compile(filename, raw).call(new Context(this, env), thisArg, args);
-        }, micro);
-    }
-
-    public Engine() {
-    }
-}

src/java/me/topchetoeu/jscript/core/engine/Environment.java

@@ -1,128 +0,0 @@
-package me.topchetoeu.jscript.core.engine;
-
-import java.util.HashMap;
-import java.util.stream.Collectors;
-
-import me.topchetoeu.jscript.common.Filename;
-import me.topchetoeu.jscript.common.Location;
-import me.topchetoeu.jscript.core.engine.debug.DebugContext;
-import me.topchetoeu.jscript.core.engine.scope.GlobalScope;
-import me.topchetoeu.jscript.core.engine.values.ArrayValue;
-import me.topchetoeu.jscript.core.engine.values.FunctionValue;
-import me.topchetoeu.jscript.core.engine.values.NativeFunction;
-import me.topchetoeu.jscript.core.engine.values.ObjectValue;
-import me.topchetoeu.jscript.core.engine.values.Symbol;
-import me.topchetoeu.jscript.core.engine.values.Values;
-import me.topchetoeu.jscript.core.exceptions.EngineException;
-import me.topchetoeu.jscript.core.parsing.Parsing;
-import me.topchetoeu.jscript.utils.interop.NativeWrapperProvider;
-
-@SuppressWarnings("unchecked")
-public class Environment implements Extensions {
-
-    public static final HashMap<String, Symbol> symbols = new HashMap<>();
-
-    public static final Symbol WRAPPERS = Symbol.get("Environment.wrappers");
-    public static final Symbol COMPILE_FUNC = Symbol.get("Environment.compile");
-
-    public static final Symbol REGEX_CONSTR = Symbol.get("Environment.regexConstructor");
-    public static final Symbol STACK = Symbol.get("Environment.stack");
-    public static final Symbol MAX_STACK_COUNT = Symbol.get("Environment.maxStackCount");
-    public static final Symbol HIDE_STACK = Symbol.get("Environment.hideStack");
-
-    public static final Symbol OBJECT_PROTO = Symbol.get("Environment.objectPrototype");
-    public static final Symbol FUNCTION_PROTO = Symbol.get("Environment.functionPrototype");
-    public static final Symbol ARRAY_PROTO = Symbol.get("Environment.arrayPrototype");
-    public static final Symbol BOOL_PROTO = Symbol.get("Environment.boolPrototype");
-    public static final Symbol NUMBER_PROTO = Symbol.get("Environment.numberPrototype");
-    public static final Symbol STRING_PROTO = Symbol.get("Environment.stringPrototype");
-    public static final Symbol SYMBOL_PROTO = Symbol.get("Environment.symbolPrototype");
-    public static final Symbol ERROR_PROTO = Symbol.get("Environment.errorPrototype");
-    public static final Symbol SYNTAX_ERR_PROTO = Symbol.get("Environment.syntaxErrorPrototype");
-    public static final Symbol TYPE_ERR_PROTO = Symbol.get("Environment.typeErrorPrototype");
-    public static final Symbol RANGE_ERR_PROTO = Symbol.get("Environment.rangeErrorPrototype");
-
-    private HashMap<Symbol, Object> data = new HashMap<>();
-
-    public GlobalScope global;
-    public WrapperProvider wrappers;
-
-    @Override public <T> void add(Symbol key, T obj) {
-        data.put(key, obj);
-    }
-    @Override public <T> T get(Symbol key) {
-        return (T)data.get(key);
-    }
-    @Override public boolean remove(Symbol key) {
-        if (data.containsKey(key)) {
-            data.remove(key);
-            return true;
-        }
-        return false;
-    }
-    @Override public boolean has(Symbol key) {
-        return data.containsKey(key);
-    }
-    @Override public Iterable<Symbol> keys() {
-        return data.keySet();
-    }
-
-    public static FunctionValue compileFunc(Extensions ext) {
-        return ext.init(COMPILE_FUNC, new NativeFunction("compile", args -> {
-            var source = args.getString(0);
-            var filename = args.getString(1);
-            var env = Values.wrapper(Values.getMember(args.ctx, args.get(2), Symbol.get("env")), Environment.class);
-            var isDebug = DebugContext.enabled(args.ctx);
-            var res = new ObjectValue();
-
-            var target = Parsing.compile(env, Filename.parse(filename), source);
-            Engine.functions.putAll(target.functions);
-            Engine.functions.remove(0l);
-
-            res.defineProperty(args.ctx, "function", target.func(env));
-            res.defineProperty(args.ctx, "mapChain", new ArrayValue());
-
-            if (isDebug) res.defineProperty(
-                args.ctx, "breakpoints",
-                ArrayValue.of(args.ctx, target.breakpoints.stream().map(Location::toString).collect(Collectors.toList()))
-            );
-
-            return res;
-        }));
-    }
-    public static FunctionValue regexConstructor(Extensions ext) {
-        return ext.init(COMPILE_FUNC, new NativeFunction("RegExp", args -> {
-            throw EngineException.ofError("Regular expressions not supported.").setCtx(args.ctx.environment, args.ctx.engine);
-        }));
-    }
-
-    public Environment copy() {
-        var res = new Environment(null, global);
-
-        res.wrappers = wrappers.fork(res);
-        res.global = global;
-        res.data.putAll(data);
-
-        return res;
-    }
-    public Environment child() {
-        var res = copy();
-        res.global = res.global.globalChild();
-        return res;
-    }
-
-    public Context context(Engine engine) {
-        return new Context(engine, this);
-    }
-
-    public Environment(WrapperProvider nativeConverter, GlobalScope global) {
-        if (nativeConverter == null) nativeConverter = new NativeWrapperProvider(this);
-        if (global == null) global = new GlobalScope();
-
-        this.wrappers = nativeConverter;
-        this.global = global;
-    }
-    public Environment() {
-        this(null, null);
-    }
-}

src/java/me/topchetoeu/jscript/core/engine/EventLoop.java

@@ -1,81 +0,0 @@
-package me.topchetoeu.jscript.core.engine;
-
-import java.util.concurrent.PriorityBlockingQueue;
-
-import me.topchetoeu.jscript.common.ResultRunnable;
-import me.topchetoeu.jscript.common.events.Awaitable;
-import me.topchetoeu.jscript.common.events.DataNotifier;
-import me.topchetoeu.jscript.core.exceptions.InterruptException;
-
-public class EventLoop {
-    private static class Task implements Comparable<Task> {
-        public final ResultRunnable<?> runnable;
-        public final DataNotifier<Object> notifier = new DataNotifier<>();
-        public final boolean micro;
-
-        public Task(ResultRunnable<?> runnable, boolean micro) {
-            this.runnable = runnable;
-            this.micro = micro;
-        }
-
-        @Override
-        public int compareTo(Task other) {
-            return Integer.compare(this.micro ? 0 : 1, other.micro ? 0 : 1);
-        }
-    }
-
-    private PriorityBlockingQueue<Task> tasks = new PriorityBlockingQueue<>();
-    private Thread thread;
-
-    @SuppressWarnings("unchecked")
-    public <T> Awaitable<T> pushMsg(ResultRunnable<T> runnable, boolean micro) {
-        var msg = new Task(runnable, micro);
-        tasks.add(msg);
-        return (Awaitable<T>)msg.notifier;
-    }
-    public Awaitable<Object> pushMsg(Runnable runnable, boolean micro) {
-        return pushMsg(() -> { runnable.run(); return null; }, micro);
-    }
-
-    public void run(boolean untilEmpty) {
-        while (!untilEmpty || !tasks.isEmpty()) {
-            try {
-                var task = tasks.take();
-
-                try {
-                    task.notifier.next(task.runnable.run());
-                }
-                catch (RuntimeException e) {
-                    if (e instanceof InterruptException) throw e;
-                    task.notifier.error(e);
-                }
-            }
-            catch (InterruptedException | InterruptException e) {
-                for (var msg : tasks) msg.notifier.error(new InterruptException(e));
-                break;
-            }
-        }
-    }
-
-    public Thread thread() {
-        return thread;
-    }
-    public Thread start() {
-        if (thread == null) {
-            thread = new Thread(() -> run(false), "Event loop #" + hashCode());
-            thread.start();
-        }
-        return thread;
-    }
-    public void stop() {
-        if (thread != null) thread.interrupt();
-        thread = null;
-    }
-
-    public boolean inLoopThread() {
-        return Thread.currentThread() == thread;
-    }
-    public boolean isRunning() {
-        return this.thread != null;
-    }
-}

src/java/me/topchetoeu/jscript/core/engine/Extensions.java

@@ -1,34 +0,0 @@
-package me.topchetoeu.jscript.core.engine;
-
-import me.topchetoeu.jscript.core.engine.values.Symbol;
-
-public interface Extensions {
-    <T> T get(Symbol key);
-    <T> void add(Symbol key, T obj);
-    Iterable<Symbol> keys();
-
-    boolean has(Symbol key);
-    boolean remove(Symbol key);
-
-    default boolean hasNotNull(Symbol key) {
-        return has(key) && get(key) != null;
-    }
-
-    default <T> T get(Symbol key, T defaultVal) {
-        if (has(key)) return get(key);
-        else return defaultVal;
-    }
-
-    default <T> T init(Symbol key, T val) {
-        if (has(key)) return get(key);
-        else {
-            add(key, val);
-            return val;
-        }
-    }
-    default void addAll(Extensions source) {
-        for (var key : source.keys()) {
-            add(key, source.get(key));
-        }
-    }
-}

src/java/me/topchetoeu/jscript/core/engine/Operation.java

@@ -1,42 +0,0 @@
-package me.topchetoeu.jscript.core.engine;
-
-public enum Operation {
-    INSTANCEOF(2, false),
-    IN(2, false),
-
-    MULTIPLY(2, true),
-    DIVIDE(2, true),
-    MODULO(2, true),
-    ADD(2, true),
-    SUBTRACT(2, true),
-
-    USHIFT_RIGHT(2, true),
-    SHIFT_RIGHT(2, true),
-    SHIFT_LEFT(2, true),
-
-    GREATER(2, true),
-    LESS(2, true),
-    GREATER_EQUALS(2, true),
-    LESS_EQUALS(2, true),
-    LOOSE_EQUALS(2, true),
-    LOOSE_NOT_EQUALS(2, true),
-    EQUALS(2, true),
-    NOT_EQUALS(2, true),
-
-    AND(2, true),
-    OR(2, true),
-    XOR(2, true),
-
-    NEG(1, true),
-    POS(1, true),
-    NOT(1, true),
-    INVERSE(1, true);
-
-    public final int operands;
-    public final boolean optimizable;
-
-    private Operation(int n, boolean opt) {
-        this.operands = n;
-        this.optimizable = opt;
-    }
-}

src/java/me/topchetoeu/jscript/core/engine/WrapperProvider.java

@@ -1,12 +0,0 @@
-package me.topchetoeu.jscript.core.engine;
-
-import me.topchetoeu.jscript.core.engine.values.FunctionValue;
-import me.topchetoeu.jscript.core.engine.values.ObjectValue;
-
-public interface WrapperProvider {
-    public ObjectValue getProto(Class<?> obj);
-    public ObjectValue getNamespace(Class<?> obj);
-    public FunctionValue getConstr(Class<?> obj);
-
-    public WrapperProvider fork(Environment env);
-}

src/java/me/topchetoeu/jscript/core/engine/debug/DebugContext.java

@@ -1,100 +0,0 @@
-package me.topchetoeu.jscript.core.engine.debug;
-
-import java.util.HashMap;
-import java.util.TreeSet;
-
-import me.topchetoeu.jscript.common.Filename;
-import me.topchetoeu.jscript.common.Location;
-import me.topchetoeu.jscript.core.compilation.Instruction;
-import me.topchetoeu.jscript.core.engine.Context;
-import me.topchetoeu.jscript.core.engine.Extensions;
-import me.topchetoeu.jscript.core.engine.frame.CodeFrame;
-import me.topchetoeu.jscript.core.engine.values.Symbol;
-import me.topchetoeu.jscript.core.exceptions.EngineException;
-import me.topchetoeu.jscript.utils.mapping.SourceMap;
-
-public class DebugContext implements DebugController {
-    public static final Symbol ENV_KEY = Symbol.get("Engine.debug");
-    public static final Symbol IGNORE = Symbol.get("Engine.ignoreDebug");
-
-    private HashMap<Filename, String> sources;
-    private HashMap<Filename, TreeSet<Location>> bpts;
-    private HashMap<Filename, SourceMap> maps;
-    private DebugController debugger;
-
-    public boolean attachDebugger(DebugController debugger) {
-        if (this.debugger != null) return false;
-
-        if (sources != null) {
-            for (var source : sources.entrySet()) debugger.onSource(
-                source.getKey(), source.getValue(),
-                bpts.get(source.getKey()),
-                maps.get(source.getKey())
-            );
-        }
-
-        this.debugger = debugger;
-        return true;
-    }
-    public boolean detachDebugger() {
-        this.debugger = null;
-        return true;
-    }
-
-    public DebugController debugger() {
-        if (debugger == null) return DebugController.empty();
-        else return debugger;
-    }
-
-    @Override public void onFramePop(Context ctx, CodeFrame frame) {
-        if (debugger != null) debugger.onFramePop(ctx, frame);
-    }
-    @Override public void onFramePush(Context ctx, CodeFrame frame) {
-        if (debugger != null) debugger.onFramePush(ctx, frame);
-    }
-    @Override public boolean onInstruction(Context ctx, CodeFrame frame, Instruction instruction, Object returnVal, EngineException error, boolean caught) {
-        if (debugger != null) return debugger.onInstruction(ctx, frame, instruction, returnVal, error, caught);
-        else return false;
-    }
-    @Override public void onSource(Filename filename, String source, TreeSet<Location> breakpoints, SourceMap map) {
-        if (debugger != null) debugger.onSource(filename, source, breakpoints, map);
-        if (sources != null) sources.put(filename, source);
-        if (bpts != null) bpts.put(filename, breakpoints);
-        if (maps != null) maps.put(filename, map);
-    }
-
-    public Location mapToCompiled(Location location) {
-        if (maps == null) return location;
-
-        var map = maps.get(location.filename());
-        if (map == null) return location;
-        return map.toCompiled(location);
-    }
-    public Location mapToOriginal(Location location) {
-        if (maps == null) return location;
-
-        var map = maps.get(location.filename());
-        if (map == null) return location;
-        return map.toOriginal(location);
-    }
-
-    private DebugContext(boolean enabled) {
-        if (enabled) {
-            sources = new HashMap<>();
-            bpts = new HashMap<>();
-            maps = new HashMap<>();
-        }
-    }
-
-    public DebugContext() {
-        this(true);
-    }
-
-    public static boolean enabled(Extensions exts) {
-        return exts.hasNotNull(ENV_KEY) && !exts.has(IGNORE);
-    }
-    public static DebugContext get(Extensions exts) {
-        if (enabled(exts)) return exts.get(ENV_KEY);
-        else return new DebugContext(false);
-    }
-}

src/java/me/topchetoeu/jscript/core/engine/debug/DebugController.java

@@ -1,62 +0,0 @@
-package me.topchetoeu.jscript.core.engine.debug;
-
-import java.util.TreeSet;
-
-import me.topchetoeu.jscript.common.Filename;
-import me.topchetoeu.jscript.common.Location;
-import me.topchetoeu.jscript.core.compilation.Instruction;
-import me.topchetoeu.jscript.core.engine.Context;
-import me.topchetoeu.jscript.core.engine.frame.CodeFrame;
-import me.topchetoeu.jscript.core.exceptions.EngineException;
-import me.topchetoeu.jscript.utils.mapping.SourceMap;
-
-public interface DebugController {
-    /**
-     * Called when a script has been loaded
-     * @param filename The name of the source
-     * @param source The name of the source
-     * @param breakpoints A set of all the breakpointable locations in this source
-     * @param map The source map associated with this file. null if this source map isn't mapped
-     */
-    void onSource(Filename filename, String source, TreeSet<Location> breakpoints, SourceMap map);
-
-    /**
-     * Called immediatly before an instruction is executed, as well as after an instruction, if it has threw or returned.
-     * This function might pause in order to await debugging commands.
-     * @param ctx The context of execution
-     * @param frame The frame in which execution is occuring
-     * @param instruction The instruction which was or will be executed
-     * @param loc The most recent location the code frame has been at
-     * @param returnVal The return value of the instruction, Values.NO_RETURN if none
-     * @param error The error that the instruction threw, null if none
-     * @param caught Whether or not the error has been caught
-     * @return Whether or not the frame should restart
-     */
-    boolean onInstruction(Context ctx, CodeFrame frame, Instruction instruction, Object returnVal, EngineException error, boolean caught);
-
-    /**
-     * Called immediatly before a frame has been pushed on the frame stack.
-     * This function might pause in order to await debugging commands.
-     * @param ctx The context of execution
-     * @param frame The code frame which was pushed
-     */
-    void onFramePush(Context ctx, CodeFrame frame);
-    /**
-     * Called immediatly after a frame has been popped out of the frame stack.
-     * This function might pause in order to await debugging commands.
-     * @param ctx The context of execution
-     * @param frame The code frame which was popped out
-     */
-    void onFramePop(Context ctx, CodeFrame frame);
-
-    public static DebugController empty() {
-        return new DebugController () {
-            @Override public void onFramePop(Context ctx, CodeFrame frame) { }
-            @Override public void onFramePush(Context ctx, CodeFrame frame) { }
-            @Override public boolean onInstruction(Context ctx, CodeFrame frame, Instruction instruction, Object returnVal, EngineException error, boolean caught) {
-                return false;
-            }
-            @Override public void onSource(Filename filename, String source, TreeSet<Location> breakpoints, SourceMap map) { }
-        };
-    }
-}

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

@@ -1,332 +0,0 @@
-package me.topchetoeu.jscript.core.engine.frame;
-
-import java.util.List;
-import java.util.Stack;
-
-import me.topchetoeu.jscript.common.Location;
-import me.topchetoeu.jscript.core.compilation.Instruction;
-import me.topchetoeu.jscript.core.engine.Context;
-import me.topchetoeu.jscript.core.engine.debug.DebugContext;
-import me.topchetoeu.jscript.core.engine.scope.LocalScope;
-import me.topchetoeu.jscript.core.engine.scope.ValueVariable;
-import me.topchetoeu.jscript.core.engine.values.ArrayValue;
-import me.topchetoeu.jscript.core.engine.values.CodeFunction;
-import me.topchetoeu.jscript.core.engine.values.ObjectValue;
-import me.topchetoeu.jscript.core.engine.values.ScopeValue;
-import me.topchetoeu.jscript.core.engine.values.Values;
-import me.topchetoeu.jscript.core.exceptions.EngineException;
-import me.topchetoeu.jscript.core.exceptions.InterruptException;
-
-public class CodeFrame {
-    public static enum TryState {
-        TRY,
-        CATCH,
-        FINALLY,
-    }
-
-    public static class TryCtx {
-        public final int start, end, catchStart, finallyStart;
-        public final int restoreStackPtr;
-        public final TryState state;
-        public final EngineException error;
-        public final PendingResult result;
-
-        public boolean hasCatch() { return catchStart >= 0; }
-        public boolean hasFinally() { return finallyStart >= 0; }
-
-        public boolean inBounds(int ptr) {
-            return ptr >= start && ptr < end;
-        }
-
-        public void setCause(EngineException target) {
-            if (error != null) target.setCause(error);
-        }
-        public TryCtx _catch(EngineException e) {
-            return new TryCtx(TryState.CATCH, e, result, restoreStackPtr, start, end, -1, finallyStart);
-        }
-        public TryCtx _finally(PendingResult res) {
-            return new TryCtx(TryState.FINALLY, error, res, restoreStackPtr, start, end, -1, -1);
-        }
-
-        public TryCtx(TryState state, EngineException err, PendingResult res, int stackPtr, int start, int end, int catchStart, int finallyStart) {
-            this.catchStart = catchStart;
-            this.finallyStart = finallyStart;
-            this.restoreStackPtr = stackPtr;
-            this.result = res == null ? PendingResult.ofNone() : res;
-            this.state = state;
-            this.start = start;
-            this.end = end;
-            this.error = err;
-        }
-    }
-
-    private static class PendingResult {
-        public final boolean isReturn, isJump, isThrow;
-        public final Object value;
-        public final EngineException error;
-        public final int ptr;
-        public final Instruction instruction;
-
-        private PendingResult(Instruction instr, boolean isReturn, boolean isJump, boolean isThrow, Object value, EngineException error, int ptr) {
-            this.instruction = instr;
-            this.isReturn = isReturn;
-            this.isJump = isJump;
-            this.isThrow = isThrow;
-            this.value = value;
-            this.error = error;
-            this.ptr = ptr;
-        }
-
-        public static PendingResult ofNone() {
-            return new PendingResult(null, false, false, false, null, null, 0);
-        }
-        public static PendingResult ofReturn(Object value, Instruction instr) {
-            return new PendingResult(instr, true, false, false, value, null, 0);
-        }
-        public static PendingResult ofThrow(EngineException error, Instruction instr) {
-            return new PendingResult(instr, false, false, true, null, error, 0);
-        }
-        public static PendingResult ofJump(int codePtr, Instruction instr) {
-            return new PendingResult(instr, false, true, false, null, null, codePtr);
-        }
-    }
-
-    public final LocalScope scope;
-    public final Object thisArg;
-    public final Object[] args;
-    public final Stack<TryCtx> tryStack = new Stack<>();
-    public final CodeFunction function;
-    public final Context ctx;
-    public Object[] stack = new Object[32];
-    public int stackPtr = 0;
-    public int codePtr = 0;
-    public boolean jumpFlag = false, popTryFlag = false;
-    private Location prevLoc = null;
-
-    public ObjectValue getLocalScope(boolean props) {
-        var names = new String[scope.locals.length];
-
-        for (int i = 0; i < scope.locals.length; i++) {
-            var name = "local_" + (i - 2);
-
-            if (i == 0) name = "this";
-            else if (i == 1) name = "arguments";
-            else if (i < function.localNames.length) name = function.localNames[i];
-
-            names[i] = name;
-        }
-
-        return new ScopeValue(scope.locals, names);
-    }
-    public ObjectValue getCaptureScope(boolean props) {
-        var names = new String[scope.captures.length];
-
-        for (int i = 0; i < scope.captures.length; i++) {
-            var name = "capture_" + (i - 2);
-            if (i < function.captureNames.length) name = function.captureNames[i];
-            names[i] = name;
-        }
-
-        return new ScopeValue(scope.captures, names);
-    }
-    public ObjectValue getValStackScope() {
-        return new ObjectValue() {
-            @Override
-            protected Object getField(Context ctx, Object key) {
-                var i = (int)Values.toNumber(ctx, key);
-                if (i < 0 || i >= stackPtr) return null;
-                else return stack[i];
-            }
-            @Override
-            protected boolean hasField(Context ctx, Object key) {
-                return true;
-            }
-            @Override
-            public List<Object> keys(boolean includeNonEnumerable) {
-                var res = super.keys(includeNonEnumerable);
-                for (var i = 0; i < stackPtr; i++) res.add(i);
-                return res;
-            }
-        };
-    }
-
-    public void addTry(int start, int end, int catchStart, int finallyStart) {
-        var err = tryStack.empty() ? null : tryStack.peek().error;
-        var res = new TryCtx(TryState.TRY, err, null, stackPtr, start, end, catchStart, finallyStart);
-
-        tryStack.add(res);
-    }
-
-    public Object peek() {
-        return peek(0);
-    }
-    public Object peek(int offset) {
-        if (stackPtr <= offset) return null;
-        else return stack[stackPtr - 1 - offset];
-    }
-    public Object pop() {
-        if (stackPtr == 0) return null;
-        return stack[--stackPtr];
-    }
-    public Object[] take(int n) {
-        int srcI = stackPtr - n;
-        if (srcI < 0) srcI = 0;
-
-        int dstI = n + srcI - stackPtr;
-        int copyN = stackPtr - srcI;
-
-        Object[] res = new Object[n];
-        System.arraycopy(stack, srcI, res, dstI, copyN);
-        stackPtr -= copyN;
-
-        return res;
-    }
-    public void push(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(ctx, val);
-    }
-
-    public Object next(Object value, Object returnValue, EngineException error) {
-        if (value != Values.NO_RETURN) push(value);
-
-        Instruction instr = null;
-        if (codePtr >= 0 && codePtr < function.body.length) instr = function.body[codePtr];
-
-        if (returnValue == Values.NO_RETURN && error == null) {
-            try {
-                if (Thread.currentThread().isInterrupted()) throw new InterruptException();
-
-                if (instr == null) returnValue = null;
-                else {
-                    DebugContext.get(ctx).onInstruction(ctx, this, instr, Values.NO_RETURN, null, false);
-
-                    if (instr.location != null) prevLoc = instr.location;
-
-                    try {
-                        this.jumpFlag = this.popTryFlag = false;
-                        returnValue = Runners.exec(ctx, instr, this);
-                    }
-                    catch (EngineException e) {
-                        error = e.add(ctx, function.name, prevLoc);
-                    }
-                }
-            }
-            catch (EngineException e) { error = e; }
-        }
-
-        while (!tryStack.empty()) {
-            var tryCtx = tryStack.peek();
-            TryCtx newCtx = null;
-
-            if (error != null) {
-                tryCtx.setCause(error);
-                if (tryCtx.hasCatch()) newCtx = tryCtx._catch(error);
-                else if (tryCtx.hasFinally()) newCtx = tryCtx._finally(PendingResult.ofThrow(error, instr));
-            }
-            else if (returnValue != Values.NO_RETURN) {
-                if (tryCtx.hasFinally()) newCtx = tryCtx._finally(PendingResult.ofReturn(returnValue, instr));
-            }
-            else if (jumpFlag && !tryCtx.inBounds(codePtr)) {
-                if (tryCtx.hasFinally()) newCtx = tryCtx._finally(PendingResult.ofJump(codePtr, instr));
-            }
-            else if (!this.popTryFlag) newCtx = tryCtx;
-
-            if (newCtx != null) {
-                if (newCtx != tryCtx) {
-                    switch (newCtx.state) {
-                        case CATCH:
-                            if (tryCtx.state != TryState.CATCH) scope.catchVars.add(new ValueVariable(false, error.value));
-                            codePtr = tryCtx.catchStart;
-                            stackPtr = tryCtx.restoreStackPtr;
-                            break;
-                        case FINALLY:
-                            if (tryCtx.state == TryState.CATCH) scope.catchVars.remove(scope.catchVars.size() - 1);
-                            codePtr = tryCtx.finallyStart;
-                            stackPtr = tryCtx.restoreStackPtr;
-                        default:
-                    }
-
-                    tryStack.pop();
-                    tryStack.push(newCtx);
-                }
-                error = null;
-                returnValue = Values.NO_RETURN;
-                break;
-            }
-            else {
-                popTryFlag = false;
-                if (tryCtx.state == TryState.CATCH) scope.catchVars.remove(scope.catchVars.size() - 1);
-
-                if (tryCtx.state != TryState.FINALLY && tryCtx.hasFinally()) {
-                    codePtr = tryCtx.finallyStart;
-                    stackPtr = tryCtx.restoreStackPtr;
-                    tryStack.pop();
-                    tryStack.push(tryCtx._finally(null));
-                    break;
-                }
-                else {
-                    tryStack.pop();
-                    codePtr = tryCtx.end;
-                    if (tryCtx.result.instruction != null) instr = tryCtx.result.instruction;
-                    if (!jumpFlag && returnValue == Values.NO_RETURN && error == null) {
-                        if (tryCtx.result.isJump) {
-                            codePtr = tryCtx.result.ptr;
-                            jumpFlag = true;
-                        }
-                        if (tryCtx.result.isReturn) returnValue = tryCtx.result.value;
-                        if (error == null && tryCtx.result.isThrow) {
-                            error = tryCtx.result.error;
-                        }
-                    }
-                    if (error != null) tryCtx.setCause(error);
-                    continue;
-                }
-            }
-        }
-
-        if (error != null) {
-            var caught = false;
-
-            for (var frame : ctx.frames()) {
-                for (var tryCtx : frame.tryStack) {
-                    if (tryCtx.state == TryState.TRY) caught = true;
-                }
-            }
-
-            DebugContext.get(ctx).onInstruction(ctx, this, instr, null, error, caught);
-            throw error;
-        }
-        if (returnValue != Values.NO_RETURN) {
-            DebugContext.get(ctx).onInstruction(ctx, this, instr, returnValue, null, false);
-            return returnValue;
-        }
-
-        return Values.NO_RETURN;
-    }
-
-    public void onPush() {
-        DebugContext.get(ctx).onFramePush(ctx, this);
-    }
-    public void onPop() {
-        DebugContext.get(ctx.parent).onFramePop(ctx.parent, this);
-    }
-
-    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(ctx, i, args[i]);
-        }
-        this.scope.get(1).value = argsObj;
-
-        this.thisArg = thisArg;
-        this.function = func;
-        this.ctx = ctx.pushFrame(this);
-    }
-}

src/java/me/topchetoeu/jscript/core/engine/frame/ConvertHint.java

@@ -1,6 +0,0 @@
-package me.topchetoeu.jscript.core.engine.frame;
-
-public enum ConvertHint {
-    TOSTRING,
-    VALUEOF,
-}

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

@@ -1,355 +0,0 @@
-package me.topchetoeu.jscript.core.engine.frame;
-
-import java.util.Collections;
-
-import me.topchetoeu.jscript.core.compilation.Instruction;
-import me.topchetoeu.jscript.core.engine.Context;
-import me.topchetoeu.jscript.core.engine.Engine;
-import me.topchetoeu.jscript.core.engine.Environment;
-import me.topchetoeu.jscript.core.engine.Operation;
-import me.topchetoeu.jscript.core.engine.scope.ValueVariable;
-import me.topchetoeu.jscript.core.engine.values.ArrayValue;
-import me.topchetoeu.jscript.core.engine.values.CodeFunction;
-import me.topchetoeu.jscript.core.engine.values.FunctionValue;
-import me.topchetoeu.jscript.core.engine.values.ObjectValue;
-import me.topchetoeu.jscript.core.engine.values.Symbol;
-import me.topchetoeu.jscript.core.engine.values.Values;
-import me.topchetoeu.jscript.core.exceptions.EngineException;
-
-public class Runners {
-    public static Object execReturn(Context ctx, Instruction instr, CodeFrame frame) {
-        return frame.pop();
-    }
-    public static Object execThrow(Context ctx, Instruction instr, CodeFrame frame) {
-        throw new EngineException(frame.pop());
-    }
-    public static Object execThrowSyntax(Context ctx, Instruction instr, CodeFrame frame) {
-        throw EngineException.ofSyntax((String)instr.get(0));
-    }
-
-    public static Object execCall(Context ctx, Instruction instr, CodeFrame frame) {
-        var callArgs = frame.take(instr.get(0));
-        var func = frame.pop();
-        var thisArg = frame.pop();
-
-        frame.push(Values.call(ctx, func, thisArg, callArgs));
-
-        frame.codePtr++;
-        return Values.NO_RETURN;
-    }
-    public static Object execCallNew(Context ctx, Instruction instr, CodeFrame frame) {
-        var callArgs = frame.take(instr.get(0));
-        var funcObj = frame.pop();
-
-        frame.push(Values.callNew(ctx, funcObj, callArgs));
-
-        frame.codePtr++;
-        return Values.NO_RETURN;
-    }
-
-    public static Object execMakeVar(Context ctx, Instruction instr, CodeFrame frame) {
-        var name = (String)instr.get(0);
-        ctx.environment.global.define(name);
-        frame.codePtr++;
-        return Values.NO_RETURN;
-    }
-    public static Object execDefProp(Context ctx, Instruction instr, CodeFrame frame) {
-        var setter = frame.pop();
-        var getter = frame.pop();
-        var name = frame.pop();
-        var obj = frame.pop();
-
-        if (getter != null && !(getter instanceof FunctionValue)) throw EngineException.ofType("Getter must be a function or undefined.");
-        if (setter != null && !(setter instanceof FunctionValue)) throw EngineException.ofType("Setter must be a function or undefined.");
-        if (!(obj instanceof ObjectValue)) throw EngineException.ofType("Property apply target must be an object.");
-        Values.object(obj).defineProperty(ctx, name, Values.function(getter), Values.function(setter), false, false);
-
-        frame.push(obj);
-        frame.codePtr++;
-        return Values.NO_RETURN;
-    }
-    public static Object execInstanceof(Context ctx, Instruction instr, CodeFrame frame) {
-        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));
-        }
-        else {
-            frame.push(false);
-        }
-
-        frame.codePtr++;
-        return Values.NO_RETURN;
-    }
-    public static Object execKeys(Context ctx, Instruction instr, CodeFrame frame) {
-        var val = frame.pop();
-
-        var members = Values.getMembers(ctx, val, false, false);
-        Collections.reverse(members);
-
-        frame.push(null);
-
-        for (var el : members) {
-            if (el instanceof Symbol) continue;
-            var obj = new ObjectValue();
-            obj.defineProperty(ctx, "value", el);
-            frame.push(obj);
-        }
-
-        frame.codePtr++;
-        return Values.NO_RETURN;
-    }
-
-    public static Object execTryStart(Context ctx, Instruction instr, CodeFrame frame) {
-        int start = frame.codePtr + 1;
-        int catchStart = (int)instr.get(0);
-        int finallyStart = (int)instr.get(1);
-        if (finallyStart >= 0) finallyStart += start;
-        if (catchStart >= 0) catchStart += start;
-        int end = (int)instr.get(2) + start;
-        frame.addTry(start, end, catchStart, finallyStart);
-        frame.codePtr++;
-        return Values.NO_RETURN;
-    }
-    public static Object execTryEnd(Context ctx, Instruction instr, CodeFrame frame) {
-        frame.popTryFlag = true;
-        return Values.NO_RETURN;
-    }
-
-    public static Object execDup(Context ctx, Instruction instr, CodeFrame frame) {
-        int count = instr.get(0);
-
-        for (var i = 0; i < count; i++) {
-            frame.push(frame.peek(count - 1));
-        }
-
-        frame.codePtr++;
-        return Values.NO_RETURN;
-    }
-    public static Object execLoadUndefined(Context ctx, Instruction instr, CodeFrame frame) {
-        frame.push(null);
-        frame.codePtr++;
-        return Values.NO_RETURN;
-    }
-    public static Object execLoadValue(Context ctx, Instruction instr, CodeFrame frame) {
-        frame.push(instr.get(0));
-        frame.codePtr++;
-        return Values.NO_RETURN;
-    }
-    public static Object execLoadVar(Context ctx, Instruction instr, CodeFrame frame) {
-        var i = instr.get(0);
-
-        if (i instanceof String) frame.push(ctx.environment.global.get(ctx, (String)i));
-        else frame.push(frame.scope.get((int)i).get(ctx));
-
-        frame.codePtr++;
-        return Values.NO_RETURN;
-    }
-    public static Object execLoadObj(Context ctx, Instruction instr, CodeFrame frame) {
-        frame.push(new ObjectValue());
-        frame.codePtr++;
-        return Values.NO_RETURN;
-    }
-    public static Object execLoadGlob(Context ctx, Instruction instr, CodeFrame frame) {
-        frame.push(ctx.environment.global.obj);
-        frame.codePtr++;
-        return Values.NO_RETURN;
-    }
-    public static Object execLoadArr(Context ctx, Instruction instr, CodeFrame frame) {
-        var res = new ArrayValue();
-        res.setSize(instr.get(0));
-        frame.push(res);
-        frame.codePtr++;
-        return Values.NO_RETURN;
-    }
-    public static Object execLoadFunc(Context ctx, Instruction instr, CodeFrame frame) {
-        long id = (Long)instr.get(0);
-        var captures = new ValueVariable[instr.params.length - 1];
-
-        for (var i = 1; i < instr.params.length; i++) {
-            captures[i - 1] = frame.scope.get(instr.get(i));
-        }
-
-        var func = new CodeFunction(ctx.environment, "", Engine.functions.get(id), captures);
-
-        frame.push(func);
-
-        frame.codePtr++;
-        return Values.NO_RETURN;
-    }
-    public static Object execLoadMember(Context ctx, Instruction instr, CodeFrame frame) {
-        var key = frame.pop();
-        var obj = frame.pop();
-
-        try {
-            frame.push(Values.getMember(ctx, obj, key));
-        }
-        catch (IllegalArgumentException e) {
-            throw EngineException.ofType(e.getMessage());
-        }
-        frame.codePtr++;
-        return Values.NO_RETURN;
-    }
-    public static Object execLoadKeyMember(Context ctx, Instruction instr, CodeFrame frame) {
-        frame.push(instr.get(0));
-        return execLoadMember(ctx, instr, frame);
-    }
-    public static Object execLoadRegEx(Context ctx, Instruction instr, CodeFrame frame) {
-        if (ctx.hasNotNull(Environment.REGEX_CONSTR)) {
-            frame.push(Values.callNew(ctx, ctx.get(Environment.REGEX_CONSTR), instr.get(0), instr.get(1)));
-        }
-        else {
-            throw EngineException.ofSyntax("Regex is not supported.");
-        }
-        frame.codePtr++;
-        return Values.NO_RETURN;
-    }
-
-    public static Object execDiscard(Context ctx, Instruction instr, CodeFrame frame) {
-        frame.pop();
-        frame.codePtr++;
-        return Values.NO_RETURN;
-    }
-    public static Object execStoreMember(Context ctx, Instruction instr, CodeFrame frame) {
-        var val = frame.pop();
-        var key = frame.pop();
-        var obj = frame.pop();
-
-        if (!Values.setMember(ctx, obj, key, val)) throw EngineException.ofSyntax("Can't set member '" + key + "'.");
-        if ((boolean)instr.get(0)) frame.push(val);
-        frame.codePtr++;
-        return Values.NO_RETURN;
-    }
-    public static Object execStoreVar(Context ctx, Instruction instr, CodeFrame frame) {
-        var val = (boolean)instr.get(1) ? frame.peek() : frame.pop();
-        var i = instr.get(0);
-
-        if (i instanceof String) ctx.environment.global.set(ctx, (String)i, val);
-        else frame.scope.get((int)i).set(ctx, val);
-
-        frame.codePtr++;
-        return Values.NO_RETURN;
-    }
-    public static Object execStoreSelfFunc(Context ctx, Instruction instr, CodeFrame frame) {
-        frame.scope.locals[(int)instr.get(0)].set(ctx, frame.function);
-        frame.codePtr++;
-        return Values.NO_RETURN;
-    }
-    
-    public static Object execJmp(Context ctx, Instruction instr, CodeFrame frame) {
-        frame.codePtr += (int)instr.get(0);
-        frame.jumpFlag = true;
-        return Values.NO_RETURN;
-    }
-    public static Object execJmpIf(Context ctx, Instruction instr, CodeFrame frame) {
-        if (Values.toBoolean(frame.pop())) {
-            frame.codePtr += (int)instr.get(0);
-            frame.jumpFlag = true;
-        }
-        else frame.codePtr ++;
-        return Values.NO_RETURN;
-    }
-    public static Object execJmpIfNot(Context ctx, Instruction instr, CodeFrame frame) {
-        if (Values.not(frame.pop())) {
-            frame.codePtr += (int)instr.get(0);
-            frame.jumpFlag = true;
-        }
-        else frame.codePtr ++;
-        return Values.NO_RETURN;
-    }
-
-    public static Object execIn(Context ctx, Instruction instr, CodeFrame frame) {
-        var obj = frame.pop();
-        var index = frame.pop();
-
-        frame.push(Values.hasMember(ctx, obj, index, false));
-        frame.codePtr++;
-        return Values.NO_RETURN;
-    }
-    public static Object execTypeof(Context ctx, Instruction instr, CodeFrame frame) {
-        String name = instr.get(0);
-        Object obj;
-
-        if (name != null) {
-            if (ctx.environment.global.has(ctx, name)) {
-                obj = ctx.environment.global.get(ctx, name);
-            }
-            else obj = null;
-        }
-        else obj = frame.pop();
-
-        frame.push(Values.type(obj));
-
-        frame.codePtr++;
-        return Values.NO_RETURN;
-    }
-    public static Object execNop(Context ctx, Instruction instr, CodeFrame frame) {
-        frame.codePtr++;
-        return Values.NO_RETURN;
-    }
-
-    public static Object execDelete(Context ctx, Instruction instr, CodeFrame frame) {
-        var key = frame.pop();
-        var val = frame.pop();
-
-        if (!Values.deleteMember(ctx, val, key)) throw EngineException.ofSyntax("Can't delete member '" + key + "'.");
-        frame.codePtr++;
-        return Values.NO_RETURN;
-    }
-
-    public static Object execOperation(Context ctx, Instruction instr, CodeFrame frame) {
-        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.codePtr++;
-        return Values.NO_RETURN;
-    }
-
-    public static Object exec(Context ctx, Instruction instr, CodeFrame frame) {
-        switch (instr.type) {
-            case NOP: return execNop(ctx, instr, frame);
-            case RETURN: return execReturn(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_START: return execTryStart(ctx, instr, frame);
-            case TRY_END: return execTryEnd(ctx, instr, frame);
-
-            case DUP: return execDup(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(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(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(ctx, instr, frame);
-            case JMP_IF: return execJmpIf(ctx, instr, frame);
-            case JMP_IFN: return execJmpIfNot(ctx, instr, frame);
-
-            case OPERATION: return execOperation(ctx, instr, frame);
-
-            default: throw EngineException.ofSyntax("Invalid instruction " + instr.type.name() + ".");
-        }
-    }
-}

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

@@ -1,79 +0,0 @@
-package me.topchetoeu.jscript.core.engine.scope;
-
-import java.util.HashSet;
-import java.util.Set;
-
-import me.topchetoeu.jscript.core.engine.Context;
-import me.topchetoeu.jscript.core.engine.values.FunctionValue;
-import me.topchetoeu.jscript.core.engine.values.NativeFunction;
-import me.topchetoeu.jscript.core.engine.values.ObjectValue;
-import me.topchetoeu.jscript.core.engine.values.Values;
-import me.topchetoeu.jscript.core.exceptions.EngineException;
-
-public class GlobalScope implements ScopeRecord {
-    public final ObjectValue obj;
-
-    public boolean has(Context ctx, String name) {
-        return Values.hasMember(null, obj, name, false);
-    }
-    public Object getKey(String name) {
-        return name;
-    }
-
-    public GlobalScope globalChild() {
-        var obj = new ObjectValue();
-        Values.setPrototype(null, obj, this.obj);
-        return new GlobalScope(obj);
-    }
-    public LocalScopeRecord child() {
-        return new LocalScopeRecord();
-    }
-
-    public Object define(String name) {
-        if (Values.hasMember(Context.NULL, obj, name, false)) return name;
-        obj.defineProperty(Context.NULL, name, null);
-        return name;
-    }
-    public void define(String name, Variable val) {
-        obj.defineProperty(Context.NULL, name,
-            new NativeFunction("get " + name, args -> val.get(args.ctx)),
-            new NativeFunction("set " + name, args -> { val.set(args.ctx, args.get(0)); return null; }),
-            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) {
-        for (var n : names) define(n);
-    }
-    public void define(boolean readonly, FunctionValue val) {
-        define(null, val.name, readonly, val);
-    }
-
-    public Object get(Context ctx, String name) {
-        if (!Values.hasMember(ctx, obj, name, false)) throw EngineException.ofSyntax("The variable '" + name + "' doesn't exist.");
-        else return Values.getMember(ctx, obj, name);
-    }
-    public void set(Context ctx, String name, Object val) {
-        if (!Values.hasMember(ctx, obj, name, false)) throw EngineException.ofSyntax("The variable '" + name + "' doesn't exist.");
-        if (!Values.setMember(ctx, obj, name, val)) throw EngineException.ofSyntax("The global '" + name + "' is readonly.");
-    }
-
-    public Set<String> keys() {
-        var res = new HashSet<String>();
-
-        for (var key : keys()) {
-            if (key instanceof String) res.add((String)key);
-        }
-
-        return res;
-    }
-
-    public GlobalScope() {
-        this.obj = new ObjectValue();
-    }
-    public GlobalScope(ObjectValue val) {
-        this.obj = val;
-    }
-}

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

@@ -1,29 +0,0 @@
-package me.topchetoeu.jscript.core.engine.scope;
-
-import java.util.ArrayList;
-
-public class LocalScope {
-    public final ValueVariable[] captures;
-    public final ValueVariable[] locals;
-    public final ArrayList<ValueVariable> catchVars = new ArrayList<>();
-
-    public ValueVariable get(int i) {
-        if (i >= locals.length) return catchVars.get(i - locals.length);
-        if (i >= 0) return locals[i];
-        else return captures[~i];
-    }
-
-
-    public int size() {
-        return captures.length + locals.length;
-    }
-
-    public LocalScope(int n, ValueVariable[] captures) {
-        locals = new ValueVariable[n];
-        this.captures = captures;
-
-        for (int i = 0; i < n; i++) {
-            locals[i] = new ValueVariable(false, null);
-        }
-    }
-}

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

@@ -1,77 +0,0 @@
-package me.topchetoeu.jscript.core.engine.scope;
-
-import java.util.ArrayList;
-
-public class LocalScopeRecord implements ScopeRecord {
-    public final LocalScopeRecord parent;
-
-    private final ArrayList<String> captures = new ArrayList<>();
-    private final ArrayList<String> locals = new ArrayList<>();
-
-    public String[] captures() {
-        return captures.toArray(String[]::new);
-    }
-    public String[] locals() {
-        return locals.toArray(String[]::new);
-    }
-
-    public LocalScopeRecord child() {
-        return new LocalScopeRecord(this);
-    }
-
-    public int localsCount() {
-        return locals.size();
-    }
-    public int capturesCount() {
-        return captures.size();
-    }
-
-    public int[] getCaptures() {
-        var buff = new int[captures.size()];
-        var i = 0;
-
-        for (var name : captures) {
-            var index = parent.getKey(name);
-            if (index instanceof Integer) buff[i++] = (int)index;
-        }
-
-        var res = new int[i];
-        System.arraycopy(buff, 0, res, 0, i);
-
-        return res;
-    }
-
-    public Object getKey(String name) {
-        var capI = captures.indexOf(name);
-        var locI = locals.lastIndexOf(name);
-        if (locI >= 0) return locI;
-        if (capI >= 0) return ~capI;
-        if (parent != null) {
-            var res = parent.getKey(name);
-            if (res != null && res instanceof Integer) {
-                captures.add(name);
-                return -captures.size();
-            }
-        }
-
-        return name;
-    }
-    public Object define(String name, boolean force) {
-        if (!force && locals.contains(name)) return locals.indexOf(name);
-        locals.add(name);
-        return locals.size() - 1;
-    }
-    public Object define(String name) {
-        return define(name, false);
-    }
-    public void undefine() {
-        locals.remove(locals.size() - 1);
-    }
-
-    public LocalScopeRecord() {
-        this.parent = null;
-    }
-    public LocalScopeRecord(LocalScopeRecord parent) {
-        this.parent = parent;
-    }
-}

src/java/me/topchetoeu/jscript/core/engine/scope/ScopeRecord.java

@@ -1,7 +0,0 @@
-package me.topchetoeu.jscript.core.engine.scope;
-
-public interface ScopeRecord {
-    public Object getKey(String name);
-    public Object define(String name);
-    public LocalScopeRecord child();
-}

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

@@ -1,28 +0,0 @@
-package me.topchetoeu.jscript.core.engine.scope;
-
-import me.topchetoeu.jscript.core.engine.Context;
-import me.topchetoeu.jscript.core.engine.values.Values;
-
-public class ValueVariable implements Variable {
-    public boolean readonly;
-    public Object value;
-
-    @Override
-    public boolean readonly() { return readonly; }
-
-    @Override
-    public Object get(Context ctx) {
-        return value;
-    }
-
-    @Override
-    public void set(Context ctx, Object val) {
-        if (readonly) return;
-        this.value = Values.normalize(ctx, val);
-    }
-    
-    public ValueVariable(boolean readonly, Object val) {
-        this.readonly = readonly;
-        this.value = val;
-    }
-}

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

@@ -1,9 +0,0 @@
-package me.topchetoeu.jscript.core.engine.scope;
-
-import me.topchetoeu.jscript.core.engine.Context;
-
-public interface Variable {
-    Object get(Context ctx);
-    default boolean readonly() { return true; }
-    default void set(Context ctx, Object val) { }
-}

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

@@ -1,222 +0,0 @@
-package me.topchetoeu.jscript.core.engine.values;
-
-import java.util.Arrays;
-import java.util.Collection;
-import java.util.Comparator;
-import java.util.Iterator;
-import java.util.List;
-
-import me.topchetoeu.jscript.core.engine.Context;
-
-// TODO: Make methods generic
-public class ArrayValue extends ObjectValue implements Iterable<Object> {
-    private static final Object UNDEFINED = new Object();
-    private Object[] values;
-    private int size;
-
-    private Object[] alloc(int index) {
-        index++;
-        if (index < values.length) return values;
-        if (index < values.length * 2) index = values.length * 2;
-
-        var arr = new Object[index];
-        System.arraycopy(values, 0, arr, 0, values.length);
-        return arr;
-    }
-
-    public int size() { return size; }
-    public boolean setSize(int val) {
-        if (val < 0) return false;
-        if (size > val) shrink(size - val);
-        else {
-            values = alloc(val);
-            size = val;
-        }
-        return true;
-    }
-
-    public Object get(int i) {
-        if (i < 0 || i >= size) return null;
-        var res = values[i];
-        if (res == UNDEFINED) return null;
-        else return res;
-    }
-    public void set(Context ctx, int i, Object val) {
-        if (i < 0) return;
-
-        values = alloc(i);
-
-        val = Values.normalize(ctx, val);
-        if (val == null) val = UNDEFINED;
-        values[i] = val;
-        if (i >= size) size = i + 1;
-    }
-    public boolean has(int i) {
-        return i >= 0 && i < size && values[i] != null;
-    }
-    public void remove(int i) {
-        if (i < 0 || i >= values.length) return;
-        values[i] = null;
-    }
-    public void shrink(int n) {
-        if (n >= values.length) {
-            values = new Object[16];
-            size = 0;
-        }
-        else {
-            for (int i = 0; i < n; i++) {
-                values[--size] = null;
-            }
-        }
-    }
-
-    public Object[] toArray() {
-        Object[] res = new Object[size];
-        copyTo(res, 0, 0, size);
-        return res;
-    }
-    public void copyTo(Object[] arr, int sourceStart, int destStart, int count) {
-        for (var i = 0; i < count; i++) {
-            if (i + sourceStart < 0 || i + sourceStart >= size) arr[i + destStart] = null;
-            if (values[i + sourceStart] == UNDEFINED) arr[i + destStart] = null;
-            else arr[i + sourceStart] = values[i + destStart];
-        }
-    }
-    public void copyTo(Context ctx, ArrayValue arr, int sourceStart, int destStart, int count) {
-        // Iterate in reverse to reallocate at most once
-        if (destStart + count > arr.size) arr.size = destStart + count;
-
-        for (var i = count - 1; i >= 0; i--) {
-            if (i + sourceStart < 0 || i + sourceStart >= size) arr.remove(i + destStart);
-            if (values[i + sourceStart] == UNDEFINED) arr.set(ctx, i + destStart, null);
-            else if (values[i + sourceStart] == null) arr.remove(i + destStart);
-            else arr.set(ctx, i + destStart, values[i + sourceStart]);
-        }
-    }
-
-    public void copyFrom(Context ctx, Object[] arr, int sourceStart, int destStart, int count) {
-        for (var i = 0; i < count; i++) {
-            set(ctx, i + destStart, arr[i + sourceStart]);
-        }
-    }
-
-    public void move(int srcI, int dstI, int n) {
-        values = alloc(dstI + n);
-
-        System.arraycopy(values, srcI, values, dstI, n);
-
-        if (dstI + n >= size) size = dstI + n;
-    }
-
-    public void sort(Comparator<Object> comparator) {
-        Arrays.sort(values, 0, size, (a, b) -> {
-            var _a = 0;
-            var _b = 0;
-
-            if (a == UNDEFINED) _a = 1;
-            if (a == null) _a = 2;
-
-            if (b == UNDEFINED) _b = 1;
-            if (b == null) _b = 2;
-
-            if (_a != 0 || _b != 0) return Integer.compare(_a, _b);
-
-            return comparator.compare(a, b);
-        });
-    }
-
-    @Override
-    protected Object getField(Context ctx, Object key) {
-        if (key instanceof Number) {
-            var i = ((Number)key).doubleValue();
-            if (i >= 0 && i - Math.floor(i) == 0) {
-                return get((int)i);
-            }
-        }
-
-        return super.getField(ctx, key);
-    }
-    @Override
-    protected boolean setField(Context ctx, Object key, Object val) {
-        if (key instanceof Number) {
-            var i = Values.number(key);
-            if (i >= 0 && i - Math.floor(i) == 0) {
-                set(ctx, (int)i, val);
-                return true;
-            }
-        }
-
-        return super.setField(ctx, key, val);
-    }
-    @Override
-    protected boolean hasField(Context ctx, Object key) {
-        if (key instanceof Number) {
-            var i = Values.number(key);
-            if (i >= 0 && i - Math.floor(i) == 0) {
-                return has((int)i);
-            }
-        }
-
-        return super.hasField(ctx, key);
-    }
-    @Override
-    protected void deleteField(Context ctx, Object key) {
-        if (key instanceof Number) {
-            var i = Values.number(key);
-            if (i >= 0 && i - Math.floor(i) == 0) {
-                remove((int)i);
-                return;
-            }
-        }
-
-        super.deleteField(ctx, key);
-    }
-
-    @Override
-    public List<Object> keys(boolean includeNonEnumerable) {
-        var res = super.keys(includeNonEnumerable);
-        for (var i = 0; i < size(); i++) {
-            if (has(i)) res.add(i);
-        }
-        return res;
-    }
-
-    @Override
-    public Iterator<Object> iterator() {
-        return new Iterator<Object>() {
-            private int i = 0;
-
-            @Override
-            public boolean hasNext() {
-                return i < size();
-            }
-            @Override
-            public Object next() {
-                if (!hasNext()) return null;
-                return get(i++);
-            }
-        };
-    }
-
-    public ArrayValue() {
-        super(PlaceholderProto.ARRAY);
-        values = new Object[16];
-        size = 0;
-    }
-    public ArrayValue(int cap) {
-        super(PlaceholderProto.ARRAY);
-        values = new Object[cap];
-        size = 0;
-    }
-    public ArrayValue(Context ctx, Object ...values) {
-        this();
-        this.values = new Object[values.length];
-        size = values.length;
-
-        for (var i = 0; i < size; i++) this.values[i] = Values.normalize(ctx, values[i]);
-    }
-
-    public static ArrayValue of(Context ctx, Collection<?> values) {
-        return new ArrayValue(ctx, values.toArray(Object[]::new));
-    }
-}

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

@@ -1,57 +0,0 @@
-package me.topchetoeu.jscript.core.engine.values;
-
-import me.topchetoeu.jscript.common.Location;
-import me.topchetoeu.jscript.core.compilation.FunctionBody;
-import me.topchetoeu.jscript.core.compilation.Instruction;
-import me.topchetoeu.jscript.core.engine.Context;
-import me.topchetoeu.jscript.core.engine.Environment;
-import me.topchetoeu.jscript.core.engine.frame.CodeFrame;
-import me.topchetoeu.jscript.core.engine.scope.ValueVariable;
-
-public class CodeFunction extends FunctionValue {
-    public final int localsN;
-    public final Instruction[] body;
-    public final String[] captureNames, localNames;
-    public final ValueVariable[] captures;
-    public Environment environment;
-
-    public Location loc() {
-        for (var instr : body) {
-            if (instr.location != null) return instr.location;
-        }
-        return null;
-    }
-    public String readable() {
-        var loc = loc();
-        if (loc == null) return name;
-        else if (name.equals("")) return loc.toString();
-        else return name + "@" + loc;
-    }
-
-    @Override
-    public Object call(Context ctx, Object thisArg, Object ...args) {
-        var frame = new CodeFrame(ctx, thisArg, args, this);
-
-        frame.onPush();
-
-        try {
-            while (true) {
-                var res = frame.next(Values.NO_RETURN, Values.NO_RETURN, null);
-                if (res != Values.NO_RETURN) return res;
-            }
-        }
-        finally {
-            frame.onPop();
-        }
-    }
-
-    public CodeFunction(Environment environment, String name, FunctionBody body, ValueVariable... captures) {
-        super(name, body.argsN);
-        this.captures = captures;
-        this.captureNames = body.captureNames;
-        this.localNames = body.localNames;
-        this.environment = environment;
-        this.localsN = body.localsN;
-        this.body = body.instructions;
-    }
-}

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

@@ -1,70 +0,0 @@
-package me.topchetoeu.jscript.core.engine.values;
-
-import java.util.List;
-
-import me.topchetoeu.jscript.core.engine.Context;
-
-public abstract class FunctionValue extends ObjectValue {
-    public String name = "";
-    public boolean special = false;
-    public int length;
-
-    @Override
-    public String toString() {
-        return String.format("function %s(...)", name);
-    }
-
-    public abstract Object call(Context ctx, Object thisArg, Object ...args);
-    public Object call(Context ctx) {
-        return call(ctx, null);
-    }
-
-    @Override
-    protected Object getField(Context ctx, Object key) {
-        if ("name".equals(key)) return name;
-        if ("length".equals(key)) return length;
-        return super.getField(ctx, key);
-    }
-    @Override
-    protected boolean setField(Context ctx, Object key, Object val) {
-        if ("name".equals(key)) name = Values.toString(ctx, val);
-        else if ("length".equals(key)) length = (int)Values.toNumber(ctx, val);
-        else return super.setField(ctx, key, val);
-        return true;
-    }
-    @Override
-    protected boolean hasField(Context ctx, Object key) {
-        if ("name".equals(key)) return true;
-        if ("length".equals(key)) return true;
-        return super.hasField(ctx, key);
-    }
-
-    @Override
-    public List<Object> keys(boolean includeNonEnumerable) {
-        var res = super.keys(includeNonEnumerable);
-        if (includeNonEnumerable) {
-            res.add("name");
-            res.add("length");
-        }
-        return res;
-    }
-
-    public FunctionValue(String name, int length) {
-        super(PlaceholderProto.FUNCTION);
-
-        if (name == null) name = "";
-        this.length = length;
-        this.name = name;
-
-        nonConfigurableSet.add("name");
-        nonEnumerableSet.add("name");
-        nonWritableSet.add("length");
-        nonConfigurableSet.add("length");
-        nonEnumerableSet.add("length");
-
-        var proto = new ObjectValue();
-        proto.defineProperty(null, "constructor", this, true, false, false);
-        this.defineProperty(null, "prototype", proto, true, false, false);
-    }
-}
-

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

@@ -1,26 +0,0 @@
-package me.topchetoeu.jscript.core.engine.values;
-
-import me.topchetoeu.jscript.core.engine.Context;
-import me.topchetoeu.jscript.utils.interop.Arguments;
-
-public class NativeFunction extends FunctionValue {
-    public static interface NativeFunctionRunner {
-        Object run(Arguments args);
-    }
-
-    public final NativeFunctionRunner action;
-
-    @Override
-    public Object call(Context ctx, Object thisArg, Object ...args) {
-        return action.run(new Arguments(ctx, thisArg, args));
-    }
-
-    public NativeFunction(String name, NativeFunctionRunner action) {
-        super(name, 0);
-        this.action = action;
-    }
-    public NativeFunction(NativeFunctionRunner action) {
-        super("", 0);
-        this.action = action;
-    }
-}

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

@@ -1,32 +0,0 @@
-package me.topchetoeu.jscript.core.engine.values;
-
-import me.topchetoeu.jscript.core.engine.Context;
-
-public class NativeWrapper extends ObjectValue {
-    private static final Object NATIVE_PROTO = new Object();
-    public final Object wrapped;
-
-    @Override
-    public ObjectValue getPrototype(Context ctx) {
-        if (prototype == NATIVE_PROTO) return ctx.environment.wrappers.getProto(wrapped.getClass());
-        else return super.getPrototype(ctx);
-    }
-
-    @Override
-    public String toString() {
-        return wrapped.toString();
-    }
-    @Override
-    public boolean equals(Object obj) {
-        return wrapped.equals(obj);
-    }
-    @Override
-    public int hashCode() {
-        return wrapped.hashCode();
-    }
-
-    public NativeWrapper(Object wrapped) {
-        this.wrapped = wrapped;
-        prototype = NATIVE_PROTO;
-    }
-}

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

@@ -1,354 +0,0 @@
-package me.topchetoeu.jscript.core.engine.values;
-
-import java.util.ArrayList;
-import java.util.LinkedHashMap;
-import java.util.LinkedHashSet;
-import java.util.List;
-import java.util.Map;
-
-import me.topchetoeu.jscript.core.engine.Context;
-import me.topchetoeu.jscript.core.engine.Environment;
-
-public class ObjectValue {
-    public static enum PlaceholderProto {
-        NONE,
-        OBJECT,
-        ARRAY,
-        FUNCTION,
-        ERROR,
-        SYNTAX_ERROR,
-        TYPE_ERROR,
-        RANGE_ERROR,
-    }
-    public static enum State {
-        NORMAL,
-        NO_EXTENSIONS,
-        SEALED,
-        FROZEN,
-    }
-
-    public static class Property { 
-        public final FunctionValue getter;
-        public final FunctionValue setter;
-
-        public Property(FunctionValue getter, FunctionValue setter) {
-            this.getter = getter;
-            this.setter = setter;
-        }
-    }
-
-    private static final Object OBJ_PROTO = new Object();
-    private static final Object ARR_PROTO = new Object();
-    private static final Object FUNC_PROTO = new Object();
-    private static final Object ERR_PROTO = new Object();
-    private static final Object SYNTAX_ERR_PROTO = new Object();
-    private static final Object TYPE_ERR_PROTO = new Object();
-    private static final Object RANGE_ERR_PROTO = new Object();
-
-    protected Object prototype;
-
-    public State state = State.NORMAL;
-    public LinkedHashMap<Object, Object> values = new LinkedHashMap<>();
-    public LinkedHashMap<Object, Property> properties = new LinkedHashMap<>();
-    public LinkedHashSet<Object> nonWritableSet = new LinkedHashSet<>();
-    public LinkedHashSet<Object> nonConfigurableSet = new LinkedHashSet<>();
-    public LinkedHashSet<Object> nonEnumerableSet = new LinkedHashSet<>();
-
-    private Property getProperty(Context ctx, Object key) {
-        if (properties.containsKey(key)) return properties.get(key);
-        var proto = getPrototype(ctx);
-        if (proto != null) return proto.getProperty(ctx, key);
-        else return null;
-    }
-
-    public final boolean memberWritable(Object key) {
-        if (state == State.FROZEN) return false;
-        return !values.containsKey(key) || !nonWritableSet.contains(key);
-    }
-    public final boolean memberConfigurable(Object key) {
-        if (state == State.SEALED || state == State.FROZEN) return false;
-        return !nonConfigurableSet.contains(key);
-    }
-    public final boolean memberEnumerable(Object key) {
-        return !nonEnumerableSet.contains(key);
-    }
-    public final boolean extensible() {
-        return state == State.NORMAL;
-    }
-
-    public final void preventExtensions() {
-        if (state == State.NORMAL) state = State.NO_EXTENSIONS;
-    }
-    public final void seal() {
-        if (state == State.NORMAL || state == State.NO_EXTENSIONS) state = State.SEALED;
-    }
-    public final void freeze() {
-        state = State.FROZEN;
-    }
-
-    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) ||
-            enumerable != memberEnumerable(key);
-
-        if (!reconfigured) {
-            if (!memberWritable(key)) {
-                var a = values.get(key);
-                var b = val;
-                if (a == null || b == null) return a == null && b == null;
-                return a == b || a.equals(b);
-            }
-            values.put(key, val);
-            return true;
-        }
-
-        if (
-            properties.containsKey(key) &&
-            values.get(key) == val &&
-            !reconfigured
-        ) return true;
-
-        if (!extensible() && !values.containsKey(key) && !properties.containsKey(key)) return false;
-        if (!memberConfigurable(key)) return false;
-
-        nonWritableSet.remove(key);
-        nonEnumerableSet.remove(key);
-        properties.remove(key);
-        values.remove(key);
-
-        if (!writable) nonWritableSet.add(key);
-        if (!configurable) nonConfigurableSet.add(key);
-        if (!enumerable) nonEnumerableSet.add(key);
-
-        values.put(key, val);
-        return true;
-    }
-    public final boolean defineProperty(Context ctx, Object key, Object val) {
-        return defineProperty(ctx, key, val, true, true, true);
-    }
-    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 &&
-            properties.get(key).setter == setter &&
-            !configurable == nonConfigurableSet.contains(key) &&
-            !enumerable == nonEnumerableSet.contains(key)
-        ) return true;
-        if (!extensible() && !values.containsKey(key) && !properties.containsKey(key)) return false;
-        if (!memberConfigurable(key)) return false;
-
-        nonWritableSet.remove(key);
-        nonEnumerableSet.remove(key);
-        properties.remove(key);
-        values.remove(key);
-
-        if (!configurable) nonConfigurableSet.add(key);
-        if (!enumerable) nonEnumerableSet.add(key);
-
-        properties.put(key, new Property(getter, setter));
-        return true;
-    }
-
-    public ObjectValue getPrototype(Context ctx) {
-        try {
-            if (prototype == OBJ_PROTO) return ctx.get(Environment.OBJECT_PROTO);
-            if (prototype == ARR_PROTO) return ctx.get(Environment.ARRAY_PROTO);
-            if (prototype == FUNC_PROTO) return ctx.get(Environment.FUNCTION_PROTO);
-            if (prototype == ERR_PROTO) return ctx.get(Environment.ERROR_PROTO);
-            if (prototype == RANGE_ERR_PROTO) return ctx.get(Environment.RANGE_ERR_PROTO);
-            if (prototype == SYNTAX_ERR_PROTO) return ctx.get(Environment.SYNTAX_ERR_PROTO);
-            if (prototype == TYPE_ERR_PROTO) return ctx.get(Environment.TYPE_ERR_PROTO);
-        }
-        catch (NullPointerException e) { return null; }
-
-        return (ObjectValue)prototype;
-    }
-    public final boolean setPrototype(PlaceholderProto val) {
-        if (!extensible()) return false;
-        switch (val) {
-            case OBJECT: prototype = OBJ_PROTO; break;
-            case FUNCTION: prototype = FUNC_PROTO; break;
-            case ARRAY: prototype = ARR_PROTO; break;
-            case ERROR: prototype = ERR_PROTO; break;
-            case SYNTAX_ERROR: prototype = SYNTAX_ERR_PROTO; break;
-            case TYPE_ERROR: prototype = TYPE_ERR_PROTO; break;
-            case RANGE_ERROR: prototype = RANGE_ERR_PROTO; break;
-            case NONE: prototype = null; break;
-        }
-        return true;
-    }
-
-    /**
-     * A method, used to get the value of a field. If a property is bound to
-     * this key, but not a field, this method should return null.
-     */
-    protected Object getField(Context ctx, Object key) {
-        if (values.containsKey(key)) return values.get(key);
-        var proto = getPrototype(ctx);
-        if (proto != null) return proto.getField(ctx, key);
-        else return null;
-    }
-    /**
-     * Changes the value of a field, that is bound to the given key. If no field is
-     * bound to this key, a new field should be created with the given value
-     * @return Whether or not the operation was successful
-     */
-    protected boolean setField(Context ctx, Object key, Object val) {
-        if (val instanceof FunctionValue && ((FunctionValue)val).name.equals("")) {
-            ((FunctionValue)val).name = Values.toString(ctx, key);
-        }
-
-        values.put(key, val);
-        return true;
-    }
-    /**
-     * Deletes the field bound to the given key.
-     */
-    protected void deleteField(Context ctx, Object key) {
-        values.remove(key);
-    }
-    /**
-     * Returns whether or not there is a field bound to the given key.
-     * This must ignore properties
-     */
-    protected boolean hasField(Context ctx, Object key) {
-        return values.containsKey(key);
-    }
-
-    public final Object getMember(Context ctx, Object key, Object thisArg) {
-        key = Values.normalize(ctx, key);
-
-        if ("__proto__".equals(key)) {
-            var res = getPrototype(ctx);
-            return res == null ? Values.NULL : res;
-        }
-
-        var prop = getProperty(ctx, key);
-
-        if (prop != null) {
-            if (prop.getter == null) return null;
-            else return prop.getter.call(ctx, Values.normalize(ctx, thisArg));
-        }
-        else return getField(ctx, key);
-    }
-    public final boolean setMember(Context ctx, Object key, Object val, Object thisArg, boolean onlyProps) {
-        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(ctx, thisArg), val);
-            return true;
-        }
-        else if (onlyProps) return false;
-        else if (!extensible() && !values.containsKey(key)) return false;
-        else if (key == null) {
-            values.put(key, val);
-            return true;
-        }
-        else if ("__proto__".equals(key)) return setPrototype(ctx, val);
-        else if (nonWritableSet.contains(key)) return false;
-        else return setField(ctx, key, val);
-    }
-    public final boolean hasMember(Context ctx, Object key, boolean own) {
-        key = Values.normalize(ctx, key);
-
-        if (key != null && "__proto__".equals(key)) return true;
-        if (hasField(ctx, key)) return true;
-        if (properties.containsKey(key)) return true;
-        if (own) return false;
-        var proto = getPrototype(ctx);
-        return proto != null && proto.hasMember(ctx, key, own);
-    }
-    public final boolean deleteMember(Context ctx, Object key) {
-        key = Values.normalize(ctx, key);
-
-        if (!memberConfigurable(key)) return false;
-        properties.remove(key);
-        nonWritableSet.remove(key);
-        nonEnumerableSet.remove(key);
-        deleteField(ctx, key);
-        return true;
-    }
-    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;
-            return true;
-        }
-        else if (val instanceof ObjectValue) {
-            var obj = Values.object(val);
-
-            if (ctx != null) {
-                if (obj == ctx.get(Environment.OBJECT_PROTO)) prototype = OBJ_PROTO;
-                else if (obj == ctx.get(Environment.ARRAY_PROTO)) prototype = ARR_PROTO;
-                else if (obj == ctx.get(Environment.FUNCTION_PROTO)) prototype = FUNC_PROTO;
-                else if (obj == ctx.get(Environment.ERROR_PROTO)) prototype = ERR_PROTO;
-                else if (obj == ctx.get(Environment.SYNTAX_ERR_PROTO)) prototype = SYNTAX_ERR_PROTO;
-                else if (obj == ctx.get(Environment.TYPE_ERR_PROTO)) prototype = TYPE_ERR_PROTO;
-                else if (obj == ctx.get(Environment.RANGE_ERR_PROTO)) prototype = RANGE_ERR_PROTO;
-                else prototype = obj;
-            }
-            else prototype = obj;
-
-            return true;
-        }
-        return false;
-    }
-
-    public final ObjectValue getMemberDescriptor(Context ctx, Object key) {
-        key = Values.normalize(ctx, key);
-
-        var prop = properties.get(key);
-        var res = new ObjectValue();
-
-        res.defineProperty(ctx, "configurable", memberConfigurable(key));
-        res.defineProperty(ctx, "enumerable", memberEnumerable(key));
-
-        if (prop != null) {
-            res.defineProperty(ctx, "get", prop.getter);
-            res.defineProperty(ctx, "set", prop.setter);
-        }
-        else if (hasField(ctx, key)) {
-            res.defineProperty(ctx, "value", values.get(key));
-            res.defineProperty(ctx, "writable", memberWritable(key));
-        }
-        else return null;
-        return res;
-    }
-
-    public List<Object> keys(boolean includeNonEnumerable) {
-        var res = new ArrayList<Object>();
-
-        for (var key : values.keySet()) {
-            if (nonEnumerableSet.contains(key) && !includeNonEnumerable) continue;
-            res.add(key);
-        }
-        for (var key : properties.keySet()) {
-            if (nonEnumerableSet.contains(key) && !includeNonEnumerable) continue;
-            res.add(key);
-        }
-
-        return res;
-    }
-
-    public ObjectValue(Context ctx, Map<?, ?> values) {
-        this(PlaceholderProto.OBJECT);
-        for (var el : values.entrySet()) {
-            defineProperty(ctx, el.getKey(), el.getValue());
-        }
-    }
-    public ObjectValue(PlaceholderProto proto) {
-        nonConfigurableSet.add("__proto__");
-        nonEnumerableSet.add("__proto__");
-        setPrototype(proto);
-    }
-    public ObjectValue() {
-        this(PlaceholderProto.OBJECT);
-    }
-}

src/java/me/topchetoeu/jscript/core/engine/values/ScopeValue.java

@@ -1,54 +0,0 @@
-package me.topchetoeu.jscript.core.engine.values;
-
-import java.util.HashMap;
-import java.util.List;
-
-import me.topchetoeu.jscript.core.engine.Context;
-import me.topchetoeu.jscript.core.engine.scope.ValueVariable;
-
-public class ScopeValue extends ObjectValue {
-    public final ValueVariable[] variables;
-    public final HashMap<String, Integer> names = new HashMap<>();
-
-    @Override
-    protected Object getField(Context ctx, Object key) {
-        if (names.containsKey(key)) return variables[names.get(key)].get(ctx);
-        return super.getField(ctx, key);
-    }
-    @Override
-    protected boolean setField(Context ctx, Object key, Object val) {
-        if (names.containsKey(key)) {
-            variables[names.get(key)].set(ctx, val);
-            return true;
-        }
-
-        var proto = getPrototype(ctx);
-        if (proto != null && proto.hasMember(ctx, key, false) && proto.setField(ctx, key, val)) return true;
-
-        return super.setField(ctx, key, val);
-    }
-    @Override
-    protected void deleteField(Context ctx, Object key) {
-        if (names.containsKey(key)) return;
-        super.deleteField(ctx, key);
-    }
-    @Override
-    protected boolean hasField(Context ctx, Object key) {
-        if (names.containsKey(key)) return true;
-        return super.hasField(ctx, key);
-    }
-    @Override
-    public List<Object> keys(boolean includeNonEnumerable) {
-        var res = super.keys(includeNonEnumerable);
-        res.addAll(names.keySet());
-        return res;
-    }
-
-    public ScopeValue(ValueVariable[] variables, String[] names) {
-        this.variables = variables;
-        for (var i = 0; i < names.length && i < variables.length; i++) {
-            this.names.put(names[i], i);
-            this.nonConfigurableSet.add(names[i]);
-        }
-    }
-}

src/java/me/topchetoeu/jscript/core/engine/values/Symbol.java

@@ -1,28 +0,0 @@
-package me.topchetoeu.jscript.core.engine.values;
-
-import java.util.HashMap;
-
-public final class Symbol {
-    private static final HashMap<String, Symbol> registry = new HashMap<>();
-
-    public final String value;
-
-    public Symbol(String value) {
-        this.value = value;
-    }
-
-    @Override
-    public String toString() {
-        if (value == null) return "Symbol";
-        else return "@@" + value;
-    }
-
-    public static Symbol get(String name) {
-        if (registry.containsKey(name)) return registry.get(name);
-        else {
-            var res = new Symbol(name);
-            registry.put(name, res);
-            return res;
-        }
-    }
-}

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

@@ -1,771 +0,0 @@
-package me.topchetoeu.jscript.core.engine.values;
-
-import java.io.ByteArrayOutputStream;
-import java.io.PrintStream;
-import java.lang.reflect.Array;
-import java.math.BigDecimal;
-import java.util.ArrayList;
-import java.util.Collections;
-import java.util.HashMap;
-import java.util.HashSet;
-import java.util.Iterator;
-import java.util.List;
-import java.util.Map;
-
-import me.topchetoeu.jscript.core.engine.Context;
-import me.topchetoeu.jscript.core.engine.Environment;
-import me.topchetoeu.jscript.core.engine.Operation;
-import me.topchetoeu.jscript.core.engine.frame.ConvertHint;
-import me.topchetoeu.jscript.core.exceptions.ConvertException;
-import me.topchetoeu.jscript.core.exceptions.EngineException;
-import me.topchetoeu.jscript.core.exceptions.SyntaxException;
-import me.topchetoeu.jscript.lib.PromiseLib;
-
-public class Values {
-    public static enum CompareResult {
-        NOT_EQUAL,
-        EQUAL,
-        LESS,
-        GREATER;
-
-        public boolean less() { return this == LESS; }
-        public boolean greater() { return this == GREATER; }
-        public boolean lessOrEqual() { return this == LESS || this == EQUAL; }
-        public boolean greaterOrEqual() { return this == GREATER || this == EQUAL; }
-
-        public static CompareResult from(int cmp) {
-            if (cmp < 0) return LESS;
-            if (cmp > 0) return GREATER;
-            return EQUAL;
-        }
-    }
-
-    public static final Object NULL = new Object();
-    public static final Object NO_RETURN = new Object();
-
-    public static boolean isWrapper(Object val) { return val instanceof NativeWrapper; }
-    public static boolean isWrapper(Object val, Class<?> clazz) {
-        if (!isWrapper(val)) return false;
-        var res = (NativeWrapper)val;
-        return res != null && clazz.isInstance(res.wrapped);
-    }
-    public static boolean isNan(Object val) { return val instanceof Number && Double.isNaN(number(val)); }
-
-    public static ObjectValue object(Object val) {
-        if (val instanceof ObjectValue) return (ObjectValue)val;
-        else return null;
-    }
-    public static ArrayValue array(Object val) {
-        if (val instanceof ArrayValue) return (ArrayValue)val;
-        else return null;
-    }
-    public static FunctionValue function(Object val) {
-        if (val instanceof FunctionValue) return (FunctionValue)val;
-        else return null;
-    }
-    public static double number(Object val) {
-        if (val instanceof Number) return ((Number)val).doubleValue();
-        else return Double.NaN;
-    }
-
-    @SuppressWarnings("unchecked")
-    public static <T> T wrapper(Object val, Class<T> clazz) { 
-        if (!isWrapper(val)) val = new NativeWrapper(val);
-        var res = (NativeWrapper)val;
-        if (res != null && clazz.isInstance(res.wrapped)) return (T)res.wrapped;
-        else return null;
-    }
-
-    public static String type(Object val) {
-        if (val == null) return "undefined";
-        if (val instanceof String) return "string";
-        if (val instanceof Number) return "number";
-        if (val instanceof Boolean) return "boolean";
-        if (val instanceof Symbol) return "symbol";
-        if (val instanceof FunctionValue) return "function";
-        return "object";
-    }
-
-    private static Object tryCallConvertFunc(Context ctx, Object obj, String name) {
-        var func = getMember(ctx, obj, name);
-
-        if (func instanceof FunctionValue) {
-            var res = Values.call(ctx, func, obj);
-            if (isPrimitive(res)) return res;
-        }
-
-        throw EngineException.ofType("Value couldn't be converted to a primitive.");
-    }
-
-    public static boolean isPrimitive(Object obj) {
-        return
-            obj instanceof Number ||
-            obj instanceof String ||
-            obj instanceof Boolean ||
-            obj instanceof Symbol ||
-            obj == null ||
-            obj == NULL;
-    }
-
-    public static Object toPrimitive(Context ctx, Object obj, ConvertHint hint) {
-        obj = normalize(ctx, obj);
-        if (isPrimitive(obj)) return obj;
-
-        var first = hint == ConvertHint.VALUEOF ? "valueOf" : "toString";
-        var second = hint == ConvertHint.VALUEOF ? "toString" : "valueOf";
-
-        if (ctx != null) {
-            try { return tryCallConvertFunc(ctx, obj, first); }
-            catch (EngineException unused) { return tryCallConvertFunc(ctx, obj, second); }
-        }
-
-        throw EngineException.ofType("Value couldn't be converted to a primitive.");
-    }
-    public static boolean toBoolean(Object obj) {
-        if (obj == NULL || obj == null) return false;
-        if (obj instanceof Number && (number(obj) == 0 || Double.isNaN(number(obj)))) return false;
-        if (obj instanceof String && ((String)obj).equals("")) return false;
-        if (obj instanceof Boolean) return (Boolean)obj;
-        return true;
-    }
-    public static double toNumber(Context ctx, Object obj) {
-        var val = toPrimitive(ctx, obj, ConvertHint.VALUEOF);
-
-        if (val instanceof Number) return number(val);
-        if (val instanceof Boolean) return ((Boolean)val) ? 1 : 0;
-        if (val instanceof String) {
-            try { return Double.parseDouble((String)val); }
-            catch (NumberFormatException e) { return Double.NaN; }
-        }
-        return Double.NaN;
-    }
-    public static String toString(Context ctx, Object obj) {
-        var val = toPrimitive(ctx, obj, ConvertHint.VALUEOF);
-
-        if (val == null) return "undefined";
-        if (val == NULL) return "null";
-
-        if (val instanceof Number) {
-            var d = number(val);
-            if (d == Double.NEGATIVE_INFINITY) return "-Infinity";
-            if (d == Double.POSITIVE_INFINITY) return "Infinity";
-            if (Double.isNaN(d)) return "NaN";
-            return BigDecimal.valueOf(d).stripTrailingZeros().toPlainString();
-        }
-        if (val instanceof Boolean) return (Boolean)val ? "true" : "false";
-        if (val instanceof String) return (String)val;
-        if (val instanceof Symbol) return val.toString();
-
-        return "Unknown value";
-    }
-
-    public static Object add(Context ctx, Object a, Object b) {
-        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(Context ctx, Object a, Object b) {
-        return toNumber(ctx, a) - toNumber(ctx, b);
-    }
-    public static double multiply(Context ctx, Object a, Object b) {
-        return toNumber(ctx, a) * toNumber(ctx, b);
-    }
-    public static double divide(Context ctx, Object a, Object b) {
-        return toNumber(ctx, a) / toNumber(ctx, b);
-    }
-    public static double modulo(Context ctx, Object a, Object b) {
-        return toNumber(ctx, a) % toNumber(ctx, b);
-    }
-    
-    public static double negative(Context ctx, Object obj) {
-        return -toNumber(ctx, obj);
-    }
-
-    public static int and(Context ctx, Object a, Object b) {
-        return (int)toNumber(ctx, a) & (int)toNumber(ctx, b);
-    }
-    public static int or(Context ctx, Object a, Object b) {
-        return (int)toNumber(ctx, a) | (int)toNumber(ctx, b);
-    }
-    public static int xor(Context ctx, Object a, Object b) {
-        return (int)toNumber(ctx, a) ^ (int)toNumber(ctx, b);
-    }
-    public static int bitwiseNot(Context ctx, Object obj) {
-        return ~(int)toNumber(ctx, obj);
-    }
-
-    public static int shiftLeft(Context ctx, Object a, Object b) {
-        return (int)toNumber(ctx, a) << (int)toNumber(ctx, b);
-    }
-    public static int shiftRight(Context ctx, Object a, Object b) {
-        return (int)toNumber(ctx, a) >> (int)toNumber(ctx, b);
-    }
-    public static long unsignedShiftRight(Context ctx, Object a, Object b) {
-        long _a = (long)toNumber(ctx, a);
-        long _b = (long)toNumber(ctx, b);
-
-        if (_a < 0) _a += 0x100000000l;
-        if (_b < 0) _b += 0x100000000l;
-        return _a >>> _b;
-    }
-
-    public static CompareResult compare(Context ctx, Object a, Object b) {
-        a = toPrimitive(ctx, a, ConvertHint.VALUEOF);
-        b = toPrimitive(ctx, b, ConvertHint.VALUEOF);
-
-        if (a instanceof String && b instanceof String) CompareResult.from(((String)a).compareTo((String)b));
-
-        var _a = toNumber(ctx, a);
-        var _b = toNumber(ctx, b);
-
-        if (Double.isNaN(_a) || Double.isNaN(_b)) return CompareResult.NOT_EQUAL;
-
-        return CompareResult.from(Double.compare(_a, _b));
-    }
-
-    public static boolean not(Object obj) {
-        return !toBoolean(obj);
-    }
-
-    public static boolean isInstanceOf(Context ctx, Object obj, Object proto) {
-        if (obj == null || obj == NULL || proto == null || proto == NULL) return false;
-        var val = getPrototype(ctx, obj);
-
-        while (val != null) {
-            if (val.equals(proto)) return true;
-            val = val.getPrototype(ctx);
-        }
-
-        return false;
-    }
-
-    public static Object operation(Context ctx, Operation op, Object ...args) {
-        switch (op) {
-            case ADD: return add(ctx, args[0], args[1]);
-            case SUBTRACT: return subtract(ctx, args[0], args[1]);
-            case DIVIDE: return divide(ctx, args[0], args[1]);
-            case MULTIPLY: return multiply(ctx, args[0], args[1]);
-            case MODULO: return modulo(ctx, args[0], args[1]);
-
-            case AND: return and(ctx, args[0], args[1]);
-            case OR: return or(ctx, args[0], args[1]);
-            case XOR: return xor(ctx, 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]);
-
-            case GREATER: return compare(ctx, args[0], args[1]).greater();
-            case GREATER_EQUALS: return compare(ctx, args[0], args[1]).greaterOrEqual();
-            case LESS: return compare(ctx, args[0], args[1]).less();
-            case LESS_EQUALS: return compare(ctx, args[0], args[1]).lessOrEqual();
-
-            case INVERSE: return bitwiseNot(ctx, args[0]);
-            case NOT: return not(args[0]);
-            case POS: return toNumber(ctx, args[0]);
-            case NEG: return negative(ctx, args[0]);
-
-            case SHIFT_LEFT: return shiftLeft(ctx, args[0], args[1]);
-            case SHIFT_RIGHT: return shiftRight(ctx, args[0], args[1]);
-            case USHIFT_RIGHT: return unsignedShiftRight(ctx, args[0], args[1]);
-
-            case IN: return hasMember(ctx, args[1], args[0], false);
-            case INSTANCEOF: {
-                var proto = getMember(ctx, args[1], "prototype");
-                return isInstanceOf(ctx, args[0], proto);
-            }
-
-            default: return null;
-        }
-    }
-
-    public static Object getMember(Context ctx, Object obj, Object key) {
-        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 (obj instanceof ObjectValue) return ((ObjectValue)obj).getMember(ctx, key, obj);
-
-        if (obj instanceof String && key instanceof Number) {
-            var i = number(key);
-            var s = (String)obj;
-            if (i >= 0 && i < s.length() && i - Math.floor(i) == 0) {
-                return s.charAt((int)i) + "";
-            }
-        }
-
-        var proto = getPrototype(ctx, obj);
-
-        if (proto == null) return "__proto__".equals(key) ? NULL : null;
-        else if (key != null && "__proto__".equals(key)) return proto;
-        else return proto.getMember(ctx, key, obj);
-    }
-    public static Object getMemberPath(Context ctx, Object obj, Object ...path) {
-        var res = obj;
-        for (var key : path) res = getMember(ctx, res, key);
-        return res;
-    }
-    public static boolean setMember(Context ctx, Object obj, Object key, Object val) {
-        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 != null && "__proto__".equals(key)) return setPrototype(ctx, obj, val);
-        if (obj instanceof ObjectValue) return ((ObjectValue)obj).setMember(ctx, key, val, obj, false);
-
-        var proto = getPrototype(ctx, obj);
-        return proto.setMember(ctx, key, val, obj, true);
-    }
-    public static boolean hasMember(Context ctx, Object obj, Object key, boolean own) {
-        if (obj == null || obj == NULL) return false;
-        obj = normalize(ctx, obj); key = normalize(ctx, key);
-
-        if ("__proto__".equals(key)) return true;
-        if (obj instanceof ObjectValue) return object(obj).hasMember(ctx, key, own);
-
-        if (obj instanceof String && key instanceof Number) {
-            var i = number(key);
-            var s = (String)obj;
-            if (i >= 0 && i < s.length() && i - Math.floor(i) == 0) return true;
-        }
-
-        if (own) return false;
-
-        var proto = getPrototype(ctx, obj);
-        return proto != null && proto.hasMember(ctx, key, own);
-    }
-    public static boolean deleteMember(Context ctx, Object obj, Object key) {
-        if (obj == null || obj == NULL) return false;
-        obj = normalize(ctx, obj); key = normalize(ctx, key);
-
-        if (obj instanceof ObjectValue) return object(obj).deleteMember(ctx, key);
-        else return false;
-    }
-    public static ObjectValue getPrototype(Context ctx, Object obj) {
-        if (obj == null || obj == NULL) return null;
-        obj = normalize(ctx, obj);
-        if (obj instanceof ObjectValue) return ((ObjectValue)obj).getPrototype(ctx);
-        if (ctx == null) return null;
-
-        if (obj instanceof String) return ctx.get(Environment.STRING_PROTO);
-        else if (obj instanceof Number) return ctx.get(Environment.NUMBER_PROTO);
-        else if (obj instanceof Boolean) return ctx.get(Environment.BOOL_PROTO);
-        else if (obj instanceof Symbol) return ctx.get(Environment.SYMBOL_PROTO);
-
-        return null;
-    }
-    public static boolean setPrototype(Context ctx, Object obj, Object proto) {
-        obj = normalize(ctx, obj);
-        return obj instanceof ObjectValue && ((ObjectValue)obj).setPrototype(ctx, proto);
-    }
-    public static void makePrototypeChain(Context ctx, Object... chain) {
-        for(var i = 1; i < chain.length; i++) {
-            setPrototype(ctx, chain[i], chain[i - 1]);
-        }
-    }
-    public static List<Object> getMembers(Context ctx, Object obj, boolean own, boolean includeNonEnumerable) {  
-        List<Object> res = new ArrayList<>();
-
-        if (obj instanceof ObjectValue) res = object(obj).keys(includeNonEnumerable);
-        if (obj instanceof String) {
-            for (var i = 0; i < ((String)obj).length(); i++) res.add((double)i);
-        }
-
-        if (!own) {
-            var proto = getPrototype(ctx, obj);
-
-            while (proto != null) {
-                res.addAll(proto.keys(includeNonEnumerable));
-                proto = getPrototype(ctx, proto);
-            }
-        }
-
-
-        return res;
-    }
-    public static ObjectValue getMemberDescriptor(Context ctx, Object obj, Object key) {
-        if (obj instanceof ObjectValue) return ((ObjectValue)obj).getMemberDescriptor(ctx, key);
-        else if (obj instanceof String && key instanceof Number) {
-            var i = ((Number)key).intValue();
-            var _i = ((Number)key).doubleValue();
-            if (i - _i != 0) return null;
-            if (i < 0 || i >= ((String)obj).length()) return null;
-
-            return new ObjectValue(ctx, Map.of(
-                "value", ((String)obj).charAt(i) + "",
-                "writable", false,
-                "enumerable", true,
-                "configurable", false
-            ));
-        }
-        else return null;
-    }
-
-    public static Object call(Context ctx, Object func, Object thisArg, Object ...args) {
-        if (!(func instanceof FunctionValue)) throw EngineException.ofType("Tried to call a non-function value.");
-        return function(func).call(ctx, thisArg, args);
-    }
-    public static Object callNew(Context ctx, Object func, Object ...args) {
-        var res = new ObjectValue();
-        try {
-            var proto = Values.getMember(ctx, func, "prototype");
-            setPrototype(ctx, res, proto);
-
-            var ret = call(ctx, func, res, args);
-
-            if (ret != null && func instanceof FunctionValue && ((FunctionValue)func).special) return ret;
-            return res;
-        }
-        catch (IllegalArgumentException e) {
-            throw EngineException.ofType("Tried to call new on an invalid constructor.");
-        }
-    }
-
-    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;
-        if (a instanceof Number && number(a) == -0.) a = 0.;
-        if (b instanceof Number && number(b) == -0.) b = 0.;
-
-        return a == b || a.equals(b);
-    }
-    public static boolean looseEqual(Context ctx, Object a, Object b) {
-        a = normalize(ctx, a); b = normalize(ctx, b);
-
-        // In loose equality, null is equivalent to undefined
-        if (a == NULL) a = null;
-        if (b == NULL) b = null;
-
-        if (a == null || b == null) return a == null && b == null;
-        // If both are objects, just compare their references
-        if (!isPrimitive(a) && !isPrimitive(b)) return a == b;
-
-        // Convert values to primitives
-        a = toPrimitive(ctx, a, ConvertHint.VALUEOF);
-        b = toPrimitive(ctx, b, ConvertHint.VALUEOF);
-
-        // 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(ctx, toNumber(ctx, a), toNumber(ctx, b));
-
-        // Default to strings
-        return toString(ctx, a).equals(toString(ctx, b));
-    }
-
-    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 + "";
-
-        if (val instanceof Map) {
-            var res = new ObjectValue();
-
-            for (var entry : ((Map<?, ?>)val).entrySet()) {
-                res.defineProperty(ctx, entry.getKey(), entry.getValue());
-            }
-
-            return res;
-        }
-
-        if (val instanceof Iterable) {
-            var res = new ArrayValue();
-
-            for (var entry : ((Iterable<?>)val)) {
-                res.set(ctx, res.size(), entry);
-            }
-
-            return res;
-        }
-
-        if (val instanceof Class) {
-            if (ctx == null) return null;
-            else return ctx.environment.wrappers.getConstr((Class<?>)val);
-        }
-
-        return new NativeWrapper(val);
-    }
-
-    @SuppressWarnings("unchecked")
-    public static <T> T convert(Context ctx, Object obj, Class<T> clazz) {
-        if (clazz == Void.class) return null;
-
-        if (obj instanceof NativeWrapper) {
-            var res = ((NativeWrapper)obj).wrapped;
-            if (clazz.isInstance(res)) return (T)res;
-        }
-
-        if (clazz == null || clazz == Object.class) return (T)obj;
-
-        if (obj instanceof ArrayValue) {
-            if (clazz.isAssignableFrom(ArrayList.class)) {
-                var raw = array(obj).toArray();
-                var res = new ArrayList<>();
-                for (var i = 0; i < raw.length; i++) res.add(convert(ctx, raw[i], Object.class));
-                return (T)new ArrayList<>(res);
-            }
-            if (clazz.isAssignableFrom(HashSet.class)) {
-                var raw = array(obj).toArray();
-                var res = new HashSet<>();
-                for (var i = 0; i < raw.length; i++) res.add(convert(ctx, raw[i], Object.class));
-                return (T)new HashSet<>(res);
-            }
-            if (clazz.isArray()) {
-                var raw = array(obj).toArray();
-                Object res = Array.newInstance(clazz.getComponentType(), raw.length);
-                for (var i = 0; i < raw.length; i++) Array.set(res, i, convert(ctx, raw[i], Object.class));
-                return (T)res;
-            }
-        }
-
-        if (obj instanceof ObjectValue && clazz.isAssignableFrom(HashMap.class)) {
-            var res = new HashMap<>();
-            for (var el : object(obj).values.entrySet()) res.put(
-                convert(ctx, el.getKey(), null),
-                convert(ctx, el.getValue(), null)
-            );
-            return (T)res;
-        }
-
-        if (clazz == String.class) return (T)toString(ctx, obj);
-        if (clazz == Boolean.class || clazz == Boolean.TYPE) return (T)(Boolean)toBoolean(obj);
-        if (clazz == Byte.class || clazz == byte.class) return (T)(Byte)(byte)toNumber(ctx, obj);
-        if (clazz == Integer.class || clazz == int.class) return (T)(Integer)(int)toNumber(ctx, obj);
-        if (clazz == Long.class || clazz == long.class) return (T)(Long)(long)toNumber(ctx, obj);
-        if (clazz == Short.class || clazz == short.class) return (T)(Short)(short)toNumber(ctx, obj);
-        if (clazz == Float.class || clazz == float.class) return (T)(Float)(float)toNumber(ctx, obj);
-        if (clazz == Double.class || clazz == double.class) return (T)(Double)toNumber(ctx, obj);
-
-        if (clazz == Character.class || clazz == char.class) {
-            if (obj instanceof Number) return (T)(Character)(char)number(obj);
-            else {
-                var res = toString(ctx, obj);
-                if (res.length() == 0) throw new ConvertException("\"\"", "Character");
-                else return (T)(Character)res.charAt(0);
-            }
-        }
-
-        if (obj == null) return null;
-        if (clazz.isInstance(obj)) return (T)obj;
-        if (clazz.isAssignableFrom(NativeWrapper.class)) {
-            return (T)new NativeWrapper(obj);
-        }
-
-        throw new ConvertException(type(obj), clazz.getSimpleName());
-    }
-
-    public static Iterable<Object> fromJSIterator(Context ctx, Object obj) {
-        return () -> {
-            try {
-                var symbol = Symbol.get("Symbol.iterator");
-
-                var iteratorFunc = getMember(ctx, obj, symbol);
-                if (!(iteratorFunc instanceof FunctionValue)) return Collections.emptyIterator();
-                var iterator = iteratorFunc instanceof FunctionValue ?
-                    ((FunctionValue)iteratorFunc).call(ctx, obj, obj) :
-                    iteratorFunc;
-                var nextFunc = getMember(ctx, call(ctx, iteratorFunc, obj), "next");
-
-                if (!(nextFunc instanceof FunctionValue)) return Collections.emptyIterator();
-
-                return new Iterator<Object>() {
-                    private Object value = null;
-                    public boolean consumed = true;
-                    private FunctionValue next = (FunctionValue)nextFunc;
-
-                    private void loadNext() {
-                        if (next == null) value = null;
-                        else if (consumed) {
-                            var curr = next.call(ctx, iterator);
-                            if (curr == null) { next = null; value = null; }
-                            if (toBoolean(Values.getMember(ctx, curr, "done"))) { next = null; value = null; }
-                            else {
-                                this.value = Values.getMember(ctx, curr, "value");
-                                consumed = false;
-                            }
-                        }
-                    }
-
-                    @Override
-                    public boolean hasNext() {
-                        loadNext();
-                        return next != null;
-                    }
-                    @Override
-                    public Object next() {
-                        loadNext();
-                        var res = value;
-                        value = null;
-                        consumed = true;
-                        return res;
-                    }
-                };
-            }
-            catch (IllegalArgumentException | NullPointerException e) {
-                return Collections.emptyIterator();
-            }
-        };
-    }
-
-    public static ObjectValue toJSIterator(Context ctx, Iterator<?> it) {
-        var res = new ObjectValue();
-
-        try {
-            var key = getMember(ctx, getMember(ctx, ctx.get(Environment.SYMBOL_PROTO), "constructor"), "iterator");
-            res.defineProperty(ctx, key, new NativeFunction("", args -> args.self));
-        }
-        catch (IllegalArgumentException | NullPointerException e) { }
-
-        res.defineProperty(ctx, "next", new NativeFunction("", args -> {
-            if (!it.hasNext()) return new ObjectValue(ctx, Map.of("done", true));
-            else {
-                var obj = new ObjectValue();
-                obj.defineProperty(args.ctx, "value", it.next());
-                return obj;
-            }
-        }));
-
-        return res;
-    }
-
-    public static ObjectValue toJSIterator(Context ctx, Iterable<?> it) {
-        return toJSIterator(ctx, it.iterator());
-    }
-
-    public static ObjectValue toJSAsyncIterator(Context ctx, Iterator<?> it) {
-        var res = new ObjectValue();
-
-        try {
-            var key = getMemberPath(ctx, ctx.get(Environment.SYMBOL_PROTO), "constructor", "asyncIterator");
-            res.defineProperty(ctx, key, new NativeFunction("", args -> args.self));
-        }
-        catch (IllegalArgumentException | NullPointerException e) { }
-
-        res.defineProperty(ctx, "next", new NativeFunction("", args -> {
-            return PromiseLib.await(args.ctx, () -> {
-                if (!it.hasNext()) return new ObjectValue(ctx, Map.of("done", true));
-                else {
-                    var obj = new ObjectValue();
-                    obj.defineProperty(args.ctx, "value", it.next());
-                    return obj;
-                }
-            });
-        }));
-
-        return res;
-    }
-
-    private static boolean isEmptyFunc(ObjectValue val) {
-        if (!(val instanceof FunctionValue)) return false;
-        if (!val.values.containsKey("prototype") || val.values.size() + val.properties.size() > 1) return false;
-        var proto = val.values.get("prototype");
-        if (!(proto instanceof ObjectValue)) return false;
-        var protoObj = (ObjectValue)proto;
-        if (protoObj.values.get("constructor") != val) return false;
-        if (protoObj.values.size() + protoObj.properties.size() != 1) return false;
-        return true;
-    }
-    private static String toReadable(Context ctx, Object val, HashSet<Object> passed, int tab) {
-        if (tab == 0 && val instanceof String) return (String)val;
-
-        if (passed.contains(val)) return "[circular]";
-
-        var printed = true;
-        var res = new StringBuilder();
-
-        if (val instanceof FunctionValue) {
-            res.append(val.toString());
-            var loc = val instanceof CodeFunction ? ((CodeFunction)val).loc() : null;
-
-            if (loc != null) res.append(" @ " + loc);
-        }
-        else if (val instanceof ArrayValue) {
-            res.append("[");
-            var obj = ((ArrayValue)val);
-            for (int i = 0; i < obj.size(); i++) {
-                if (i != 0) res.append(", ");
-                else res.append(" ");
-                if (obj.has(i)) res.append(toReadable(ctx, obj.get(i), passed, tab));
-                else res.append("<empty>");
-            }
-            res.append(" ] ");
-        }
-        else if (val instanceof NativeWrapper) {
-            var obj = ((NativeWrapper)val).wrapped;
-            res.append("Native " + obj.toString() + " ");
-        }
-        else printed = false;
-
-        if (val instanceof ObjectValue) {
-            if (tab > 3) {
-                return "{...}";
-            }
-
-            passed.add(val);
-
-            var obj = (ObjectValue)val;
-            if (obj.values.size() + obj.properties.size() == 0 || isEmptyFunc(obj)) {
-                if (!printed) res.append("{}\n");
-            }
-            else {
-                res.append("{\n");
-
-                for (var el : obj.values.entrySet()) {
-                    for (int i = 0; i < tab + 1; i++) res.append("    ");
-                    res.append(toReadable(ctx, el.getKey(), passed, tab + 1));
-                    res.append(": ");
-                    res.append(toReadable(ctx, el.getValue(), passed, tab + 1));
-                    res.append(",\n");
-                }
-                for (var el : obj.properties.entrySet()) {
-                    for (int i = 0; i < tab + 1; i++) res.append("    ");
-                    res.append(toReadable(ctx, el.getKey(), passed, tab + 1));
-                    res.append(": [prop],\n");
-                }
-
-                for (int i = 0; i < tab; i++) res.append("    ");
-                res.append("}");
-            }
-
-            passed.remove(val);
-        }
-        else if (val == null) return "undefined";
-        else if (val == Values.NULL) return "null";
-        else if (val instanceof String) return "'" + val + "'";
-        else return Values.toString(ctx, val);
-
-        return res.toString();
-    }
-
-    public static String toReadable(Context ctx, Object val) {
-        return toReadable(ctx, val, new HashSet<>(), 0);
-    }
-    public static String errorToReadable(RuntimeException err, String prefix) {
-        prefix = prefix == null ? "Uncaught" : "Uncaught " + prefix;
-        if (err instanceof EngineException) {
-            var ee = ((EngineException)err);
-            try {
-                return prefix + " " + ee.toString(new Context(ee.engine, ee.env));
-            }
-            catch (EngineException ex) {
-                return prefix + " " + toReadable(new Context(ee.engine, ee.env), ee.value);
-            }
-        }
-        else if (err instanceof SyntaxException) {
-            return prefix + " SyntaxError " + ((SyntaxException)err).msg;
-        }
-        else if (err.getCause() instanceof InterruptedException) return "";
-        else {
-            var str = new ByteArrayOutputStream();
-            err.printStackTrace(new PrintStream(str));
-
-            return prefix + " internal error " + str.toString();
-        }
-    }
-    public static void printValue(Context ctx, Object val) {
-        System.out.print(toReadable(ctx, val));
-    }
-    public static void printError(RuntimeException err, String prefix) {
-        System.out.println(errorToReadable(err, prefix));
-    }
-}

src/java/me/topchetoeu/jscript/core/exceptions/ConvertException.java

@@ -1,11 +0,0 @@
-package me.topchetoeu.jscript.core.exceptions;
-
-public class ConvertException extends RuntimeException {
-    public final String source, target;
-
-    public ConvertException(String source, String target) {
-        super(String.format("Cannot convert '%s' to '%s'.", source, target));
-        this.source = source;
-        this.target = target;
-    }
-}

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

@@ -1,123 +0,0 @@
-package me.topchetoeu.jscript.core.exceptions;
-
-import java.util.ArrayList;
-import java.util.List;
-
-import me.topchetoeu.jscript.common.Location;
-import me.topchetoeu.jscript.core.engine.Context;
-import me.topchetoeu.jscript.core.engine.Engine;
-import me.topchetoeu.jscript.core.engine.Environment;
-import me.topchetoeu.jscript.core.engine.debug.DebugContext;
-import me.topchetoeu.jscript.core.engine.values.ObjectValue;
-import me.topchetoeu.jscript.core.engine.values.Values;
-import me.topchetoeu.jscript.core.engine.values.ObjectValue.PlaceholderProto;
-
-public class EngineException extends RuntimeException {
-    public static class StackElement {
-        public final Location location;
-        public final String function;
-        public final Context ctx;
-
-        public boolean visible() {
-            return ctx == null || !ctx.get(Environment.HIDE_STACK, false);
-        }
-        public String toString() {
-            var res = "";
-            var loc = location;
-
-            if (loc != null && ctx != null && ctx.engine != null) loc = DebugContext.get(ctx).mapToCompiled(loc);
-
-            if (loc != null) res += "at " + loc.toString() + " ";
-            if (function != null && !function.equals("")) res += "in " + function + " ";
-
-            return res.trim();
-        }
-
-        public StackElement(Context ctx, Location location, String function) {
-            if (function != null) function = function.trim();
-            if (function.equals("")) function = null;
-
-            if (ctx == null) this.ctx = null;
-            else this.ctx = new Context(ctx.engine, ctx.environment);
-            this.location = location;
-            this.function = function;
-        }
-    }
-
-    public final Object value;
-    public EngineException cause;
-    public Environment env = null;
-    public Engine engine = null;
-    public final List<StackElement> stackTrace = new ArrayList<>();
-
-    public EngineException add(Context ctx, String name, Location location) {
-        var el = new StackElement(ctx, location, name);
-        if (el.function == null && el.location == null) return this;
-        setCtx(ctx.environment, ctx.engine);
-        stackTrace.add(el);
-        return this;
-    }
-    public EngineException setCause(EngineException cause) {
-        this.cause = cause;
-        return this;
-    }
-    public EngineException setCtx(Environment env, Engine engine) {
-        if (this.env == null) this.env = env;
-        if (this.engine == null) this.engine = engine;
-        return this;
-    }
-    public EngineException setCtx(Context ctx) {
-        if (this.env == null) this.env = ctx.environment;
-        if (this.engine == null) this.engine = ctx.engine;
-        return this;
-    }
-
-    public String toString(Context ctx) {
-        var ss = new StringBuilder();
-        try {
-            ss.append(Values.toString(ctx, value)).append('\n');
-        }
-        catch (EngineException e) {
-            ss.append("[Error while stringifying]\n");
-        }
-        for (var line : stackTrace) {
-            if (line.visible()) ss.append("    ").append(line.toString()).append("\n");
-        }
-        if (cause != null) ss.append("Caused by ").append(cause.toString(ctx)).append('\n');
-        ss.deleteCharAt(ss.length() - 1);
-        return ss.toString();
-    }
-
-    private static Object err(String name, String msg, PlaceholderProto proto) {
-        var res = new ObjectValue(proto);
-        if (name != null) res.defineProperty(null, "name", name);
-        res.defineProperty(null, "message", msg);
-        return res;
-    }
-
-    public EngineException(Object error) {
-        super(error == null ? "null" : error.toString());
-
-        this.value = error;
-        this.cause = null;
-    }
-
-    public static EngineException ofError(String name, String msg) {
-        return new EngineException(err(name, msg, PlaceholderProto.ERROR));
-    }
-    public static EngineException ofError(String msg) {
-        return new EngineException(err(null, msg, PlaceholderProto.ERROR));
-    }
-    public static EngineException ofSyntax(SyntaxException e) {
-        return new EngineException(err(null, e.msg, PlaceholderProto.SYNTAX_ERROR)).add(null, null, e.loc);
-    }
-    public static EngineException ofSyntax(String msg) {
-        return new EngineException(err(null, msg, PlaceholderProto.SYNTAX_ERROR));
-    }
-    public static EngineException ofType(String msg) {
-        return new EngineException(err(null, msg, PlaceholderProto.TYPE_ERROR));
-    }
-    public static EngineException ofRange(String msg) {
-        return new EngineException(err(null, msg, PlaceholderProto.RANGE_ERROR));
-    }
-}

src/java/me/topchetoeu/jscript/core/exceptions/InterruptException.java

@@ -1,8 +0,0 @@
-package me.topchetoeu.jscript.core.exceptions;
-
-public class InterruptException extends RuntimeException {
-    public InterruptException() { }
-    public InterruptException(Throwable e) {
-        super(e);
-    }
-}

src/java/me/topchetoeu/jscript/core/parsing/Operator.java

@@ -1,113 +0,0 @@
-package me.topchetoeu.jscript.core.parsing;
-
-import java.util.HashMap;
-import java.util.Map;
-
-import me.topchetoeu.jscript.core.engine.Operation;
-
-public enum Operator {
-    MULTIPLY("*", Operation.MULTIPLY, 13),
-    DIVIDE("/", Operation.DIVIDE, 12),
-    MODULO("%", Operation.MODULO, 12),
-    SUBTRACT("-", Operation.SUBTRACT, 11),
-    ADD("+", Operation.ADD, 11),
-    SHIFT_RIGHT(">>", Operation.SHIFT_RIGHT, 10),
-    SHIFT_LEFT("<<", Operation.SHIFT_LEFT, 10),
-    USHIFT_RIGHT(">>>", Operation.USHIFT_RIGHT, 10),
-    GREATER(">", Operation.GREATER, 9),
-    LESS("<", Operation.LESS, 9),
-    GREATER_EQUALS(">=", Operation.GREATER_EQUALS, 9),
-    LESS_EQUALS("<=", Operation.LESS_EQUALS, 9),
-    NOT_EQUALS("!=", Operation.LOOSE_NOT_EQUALS, 8),
-    LOOSE_NOT_EQUALS("!==", Operation.NOT_EQUALS, 8),
-    EQUALS("==", Operation.LOOSE_EQUALS, 8),
-    LOOSE_EQUALS("===", Operation.EQUALS, 8),
-    AND("&", Operation.AND, 7),
-    XOR("^", Operation.XOR, 6),
-    OR("|", Operation.OR, 5),
-    LAZY_AND("&&", 4),
-    LAZY_OR("||", 3),
-    ASSIGN_SHIFT_LEFT("<<=", 2, true),
-    ASSIGN_SHIFT_RIGHT(">>=", 2, true),
-    ASSIGN_USHIFT_RIGHT(">>>=", 2, true),
-    ASSIGN_AND("&=", 2, true),
-    ASSIGN_OR("|=", 2, true),
-    ASSIGN_XOR("^=", 2, true),
-    ASSIGN_MODULO("%=", 2, true),
-    ASSIGN_DIVIDE("/=", 2, true),
-    ASSIGN_MULTIPLY("*=", 2, true),
-    ASSIGN_SUBTRACT("-=", 2, true),
-    ASSIGN_ADD("+=", 2, true),
-    ASSIGN("=", 2, true),
-    SEMICOLON(";"),
-    COLON(":"),
-    PAREN_OPEN("("),
-    PAREN_CLOSE(")"),
-    BRACKET_OPEN("["),
-    BRACKET_CLOSE("]"),
-    BRACE_OPEN("{"),
-    BRACE_CLOSE("}"),
-    DOT("."),
-    COMMA(","),
-    NOT("!"),
-    QUESTION("?"),
-    INVERSE("~"),
-    INCREASE("++"),
-    DECREASE("--");
-
-    public final String value;
-    public final Operation operation;
-    public final int precedence;
-    public final boolean reverse;
-    private static final Map<String, Operator> ops = new HashMap<>();
-
-    static {
-        for (var el : Operator.values()) {
-            ops.put(el.value, el);
-        }
-    }
-
-    public boolean isAssign() { return precedence == 2; }
-
-    public static Operator parse(String val) {
-        return ops.get(val);
-    }
-
-    private Operator() {
-        this.value = null;
-        this.operation = null;
-        this.precedence = -1;
-        this.reverse = false;
-    }
-    private Operator(String value) {
-        this. value = value;
-        this.operation = null;
-        this.precedence = -1;
-        this.reverse = false;
-    }
-    private Operator(String value, int precedence) {
-        this. value = value;
-        this.operation = null;
-        this.precedence = precedence;
-        this.reverse = false;
-    }
-    private Operator(String value, int precedence, boolean reverse) {
-        this. value = value;
-        this.operation = null;
-        this.precedence = precedence;
-        this.reverse = reverse;
-    }
-
-    private Operator(String value, Operation funcName, int precedence) {
-        this. value = value;
-        this.operation = funcName;
-        this.precedence = precedence;
-        this.reverse = false;
-    }
-    private Operator(String value, Operation funcName, int precedence, boolean reverse) {
-        this.value = value;
-        this.operation = funcName;
-        this.precedence = precedence;
-        this.reverse = reverse;
-    }
-}

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

@@ -1,100 +0,0 @@
-package me.topchetoeu.jscript.core.parsing;
-
-import java.util.List;
-import java.util.Map;
-
-import me.topchetoeu.jscript.common.Location;
-import me.topchetoeu.jscript.core.parsing.Parsing.Parser;
-
-public class ParseRes<T> {
-    public static enum State {
-        SUCCESS,
-        FAILED,
-        ERROR;
-
-        public boolean isSuccess() { return this == SUCCESS; }
-        public boolean isFailed() { return this == FAILED; }
-        public boolean isError() { return this == ERROR; }
-    }
-
-    public final ParseRes.State state;
-    public final String error;
-    public final T result;
-    public final int n;
-
-    private ParseRes(ParseRes.State state, String error, T result, int readN) {
-        this.result = result;
-        this.n = readN;
-        this.state = state;
-        this.error = error;
-    }
-
-    public ParseRes<T> setN(int i) {
-        if (!state.isSuccess()) return this;
-        return new ParseRes<>(state, null, result, i);
-    }
-    public ParseRes<T> addN(int i) {
-        if (!state.isSuccess()) return this;
-        return new ParseRes<>(state, null, result, this.n + i);
-    }
-    public <T2> ParseRes<T2> transform() {
-        if (isSuccess()) throw new RuntimeException("Can't transform a ParseRes that hasn't failed.");
-        return new ParseRes<>(state, error, null, 0);
-    }
-    public TestRes toTest() {
-        if (isSuccess()) return TestRes.res(n);
-        else if (isError()) return TestRes.error(null, error);
-        else return TestRes.failed();
-    }
-
-    public boolean isSuccess() { return state.isSuccess(); }
-    public boolean isFailed() { return state.isFailed(); }
-    public boolean isError() { return state.isError(); }
-
-    public static <T> ParseRes<T> failed() {
-        return new ParseRes<T>(State.FAILED, null, null, 0);
-    }
-    public static <T> ParseRes<T> error(Location loc, String error) {
-        if (loc != null) error = loc + ": " + error;
-        return new ParseRes<>(State.ERROR, error, null, 0);
-    }
-    public static <T> ParseRes<T> error(Location loc, String error, ParseRes<?> other) {
-        if (loc != null) error = loc + ": " + error;
-        if (!other.isError()) return new ParseRes<>(State.ERROR, error, null, 0);
-        return new ParseRes<>(State.ERROR, other.error, null, 0);
-    }
-    public static <T> ParseRes<T> res(T val, int i) {
-        return new ParseRes<>(State.SUCCESS, null, val, i);
-    }
-
-    @SafeVarargs
-    public static <T> ParseRes<? extends T> any(ParseRes<? extends T> ...parsers) {
-        return any(List.of(parsers));
-    }
-    public static <T> ParseRes<? extends T> any(List<ParseRes<? extends T>> parsers) {
-        ParseRes<? extends T> best = null;
-        ParseRes<? extends T> error = ParseRes.failed();
-
-        for (var parser : parsers) {
-            if (parser.isSuccess()) {
-                if (best == null || best.n < parser.n) best = parser;
-            }
-            else if (parser.isError() && error.isFailed()) error = parser.transform();
-        }
-
-        if (best != null) return best;
-        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) {
-        ParseRes<? extends T> error = ParseRes.failed();
-
-        for (var parser : parsers) {
-            var res = parser.parse(null, tokens, 0);
-            if (res.isSuccess()) return res;
-            else if (res.isError() && error.isFailed()) error = res.transform();
-        }
-
-        return error;
-    }
-}

src/java/me/topchetoeu/jscript/core/parsing/RawToken.java

@@ -1,15 +0,0 @@
-package me.topchetoeu.jscript.core.parsing;
-
-public class RawToken {
-    public final String value;
-    public final TokenType type;
-    public final int line;
-    public final int start;
-
-    public RawToken(String value, TokenType type, int line, int start) {
-        this.value = value;
-        this.type = type;
-        this.line = line;
-        this.start = start;
-    }
-}

src/java/me/topchetoeu/jscript/core/parsing/TestRes.java

@@ -1,45 +0,0 @@
-package me.topchetoeu.jscript.core.parsing;
-
-import me.topchetoeu.jscript.common.Location;
-import me.topchetoeu.jscript.core.parsing.ParseRes.State;
-
-public class TestRes {
-    public final State state;
-    public final String error;
-    public final int i;
-
-    private TestRes(ParseRes.State state, String error, int i) {
-        this.i = i;
-        this.state = state;
-        this.error = error;
-    }
-
-    public TestRes add(int n) {
-        return new TestRes(state, null, this.i + n);
-    }
-    public <T> ParseRes<T> transform() {
-        if (isSuccess()) throw new RuntimeException("Can't transform a TestRes that hasn't failed.");
-        else if (isError()) return ParseRes.error(null, error);
-        else return ParseRes.failed();
-    }
-
-    public boolean isSuccess() { return state.isSuccess(); }
-    public boolean isFailed() { return state.isFailed(); }
-    public boolean isError() { return state.isError(); }
-
-    public static TestRes failed() {
-        return new TestRes(State.FAILED, null, 0);
-    }
-    public static TestRes error(Location loc, String error) {
-        if (loc != null) error = loc + ": " + error;
-        return new TestRes(State.ERROR, error, 0);
-    }
-    public static TestRes error(Location loc, String error, TestRes other) {
-        if (loc != null) error = loc + ": " + error;
-        if (!other.isError()) return new TestRes(State.ERROR, error, 0);
-        return new TestRes(State.ERROR, other.error, 0);
-    }
-    public static TestRes res(int i) {
-        return new TestRes(State.SUCCESS, null, i);
-    }
-}

src/java/me/topchetoeu/jscript/core/parsing/Token.java

@@ -1,55 +0,0 @@
-package me.topchetoeu.jscript.core.parsing;
-
-public class Token {
-    public final Object value;
-    public final boolean isString;
-    public final boolean isRegex;
-    public final int line;
-    public final int start;
-
-    private Token(int line, int start, Object value, boolean isString, boolean isRegex) {
-        this.value = value;
-        this.line = line;
-        this.start = start;
-        this.isString = isString;
-        this.isRegex = isRegex;
-    }
-    private Token(int line, int start, Object value) {
-        this.value = value;
-        this.line = line;
-        this.start = start;
-        this.isString = false;
-        this.isRegex = false;
-    }
-
-    public boolean isString() { return isString; }
-    public boolean isRegex() { return isRegex; }
-    public boolean isNumber() { return value instanceof Number; }
-    public boolean isIdentifier() { return !isString && !isRegex && value instanceof String; }
-    public boolean isOperator() { return value instanceof Operator; }
-
-    public boolean isIdentifier(String lit) { return !isString && !isRegex && value.equals(lit); }
-    public boolean isOperator(Operator op) { return value.equals(op); }
-
-    public String string() { return (String)value; }
-    public String regex() { return (String)value; }
-    public double number() { return (double)value; }
-    public String identifier() { return (String)value; }
-    public Operator operator() { return (Operator)value; }
-
-    public static Token regex(int line, int start, String val) {
-        return new Token(line, start, val, false, true);
-    }
-    public static Token string(int line, int start, String val) {
-        return new Token(line, start, val, true, false);
-    }
-    public static Token number(int line, int start, double val) {
-        return new Token(line, start, val);
-    }
-    public static Token identifier(int line, int start, String val) {
-        return new Token(line, start, val);
-    }
-    public static Token operator(int line, int start, Operator val) {
-        return new Token(line, start, val);
-    }
-}

src/java/me/topchetoeu/jscript/core/parsing/TokenType.java

@@ -1,9 +0,0 @@
-package me.topchetoeu.jscript.core.parsing;
-
-enum TokenType {
-    REGEX,
-    STRING,
-    NUMBER,
-    LITERAL,
-    OPERATOR,
-}

src/java/me/topchetoeu/jscript/lib/ArrayLib.java

@@ -1,456 +0,0 @@
-package me.topchetoeu.jscript.lib;
-
-import java.util.Iterator;
-import java.util.Stack;
-
-import me.topchetoeu.jscript.core.engine.values.ArrayValue;
-import me.topchetoeu.jscript.core.engine.values.FunctionValue;
-import me.topchetoeu.jscript.core.engine.values.NativeFunction;
-import me.topchetoeu.jscript.core.engine.values.ObjectValue;
-import me.topchetoeu.jscript.core.engine.values.Values;
-import me.topchetoeu.jscript.utils.interop.Arguments;
-import me.topchetoeu.jscript.utils.interop.Expose;
-import me.topchetoeu.jscript.utils.interop.ExposeConstructor;
-import me.topchetoeu.jscript.utils.interop.ExposeTarget;
-import me.topchetoeu.jscript.utils.interop.ExposeType;
-import me.topchetoeu.jscript.utils.interop.WrapperName;
-
-@WrapperName("Array")
-public class ArrayLib {
-    private static int normalizeI(int len, int i, boolean clamp) {
-        if (i < 0) i += len;
-        if (clamp) {
-            if (i < 0) i = 0;
-            if (i > len) i = len;
-        }
-        return i;
-    }
-
-    @Expose(value = "length", type = ExposeType.GETTER)
-    public static int __getLength(Arguments args) {
-        return args.self(ArrayValue.class).size();
-    }
-    @Expose(value = "length", type = ExposeType.SETTER)
-    public static void __setLength(Arguments args) {
-        args.self(ArrayValue.class).setSize(args.getInt(0));
-    }
-
-    @Expose public static ObjectValue __values(Arguments args) {
-        return __iterator(args);
-    }
-    @Expose public static ObjectValue __keys(Arguments args) {
-        return Values.toJSIterator(args.ctx, () -> new Iterator<Object>() {
-            private int i = 0;
-
-            @Override
-            public boolean hasNext() {
-                return i < args.self(ArrayValue.class).size();
-            }
-            @Override
-            public Object next() {
-                if (!hasNext()) return null;
-                return i++;
-            }
-        });
-    }
-    @Expose public static ObjectValue __entries(Arguments args) {
-        return Values.toJSIterator(args.ctx, () -> new Iterator<Object>() {
-            private int i = 0;
-
-            @Override
-            public boolean hasNext() {
-                return i < args.self(ArrayValue.class).size();
-            }
-            @Override
-            public Object next() {
-                if (!hasNext()) return null;
-                return new ArrayValue(args.ctx, i, args.self(ArrayValue.class).get(i++));
-            }
-        });
-    }
-
-    @Expose(value = "@@Symbol.iterator")
-    public static ObjectValue __iterator(Arguments args) {
-        return Values.toJSIterator(args.ctx, args.self(ArrayValue.class));
-    }
-    @Expose(value = "@@Symbol.asyncIterator")
-    public static ObjectValue __asyncIterator(Arguments args) {
-        return Values.toJSAsyncIterator(args.ctx, args.self(ArrayValue.class).iterator());
-    }
-
-    @Expose public static ArrayValue __concat(Arguments args) {
-        // TODO: Fully implement with non-array spreadable objects
-        var arrs = args.slice(-1);
-        var size = 0;
-
-        for (int i = 0; i < arrs.n(); i++) {
-            if (arrs.get(i) instanceof ArrayValue) size += arrs.convert(i, ArrayValue.class).size();
-            else i++;
-        }
-
-        var res = new ArrayValue(size);
-
-        for (int i = 0, j = 0; i < arrs.n(); i++) {
-            if (arrs.get(i) instanceof ArrayValue) {
-                var arrEl = arrs.convert(i, ArrayValue.class);
-                int n = arrEl.size();
-                arrEl.copyTo(args.ctx, res, 0, j, n);
-                j += n;
-            }
-            else {
-                res.set(args.ctx, j++, arrs.get(i));
-            }
-        }
-
-        return res;
-    }
-    @Expose public static ArrayValue __sort(Arguments args) {
-        var arr = args.self(ArrayValue.class);
-        var cmp = args.convert(0, FunctionValue.class);
-
-        var defaultCmp = new NativeFunction("", _args -> {
-            return _args.getString(0).compareTo(_args.getString(1));
-        });
-
-        arr.sort((a, b) -> {
-            var res = Values.toNumber(args.ctx, (cmp == null ? defaultCmp : cmp).call(args.ctx, null, a, b));
-            if (res < 0) return -1;
-            if (res > 0) return 1;
-            return 0;
-        });
-        return arr;
-    }
-
-    @Expose public static ArrayValue __fill(Arguments args) {
-        var arr = args.self(ArrayValue.class);
-        var val = args.get(0);
-        var start = normalizeI(arr.size(), args.getInt(1, 0), true);
-        var end = normalizeI(arr.size(), args.getInt(2, arr.size()), true);
-
-        for (; start < end; start++) arr.set(args.ctx, start, val);
-
-        return arr;
-    }
-    @Expose public static boolean __every(Arguments args) {
-        var arr = args.self(ArrayValue.class);
-
-        for (var i = 0; i < arr.size(); i++) {
-            if (arr.has(i) && !Values.toBoolean(Values.call(
-                args.ctx, args.get(0), args.get(1),
-                arr.get(i), i, arr
-            ))) return false;
-        }
-
-        return true;
-    }
-    @Expose public static boolean __some(Arguments args) {
-        var arr = args.self(ArrayValue.class);
-
-        for (var i = 0; i < arr.size(); i++) {
-            if (arr.has(i) && Values.toBoolean(Values.call(
-                args.ctx, args.get(0), args.get(1),
-                arr.get(i), i, arr
-            ))) return true;
-        }
-
-        return false;
-    }
-    @Expose public static ArrayValue __filter(Arguments args) {
-        var arr = args.self(ArrayValue.class);
-        var res = new ArrayValue(arr.size());
-
-        for (int i = 0, j = 0; i < arr.size(); i++) {
-            if (arr.has(i) && Values.toBoolean(Values.call(
-                args.ctx, args.get(0), args.get(1),
-                arr.get(i), i, arr
-            ))) res.set(args.ctx, j++, arr.get(i));
-        }
-
-        return res;
-    }
-    @Expose public static ArrayValue __map(Arguments args) {
-        var arr = args.self(ArrayValue.class);
-        var res = new ArrayValue(arr.size());
-        res.setSize(arr.size());
-
-        for (int i = 0; i < arr.size(); i++) {
-            if (arr.has(i)) res.set(args.ctx, i, Values.call(args.ctx, args.get(0), args.get(1), arr.get(i), i, arr));
-        }
-        return res;
-    }
-    @Expose public static void __forEach(Arguments args) {
-        var arr = args.self(ArrayValue.class);
-        var func = args.convert(0, FunctionValue.class);
-        var thisArg = args.get(1);
-
-        for (int i = 0; i < arr.size(); i++) {
-            if (arr.has(i)) func.call(args.ctx, thisArg, arr.get(i), i, arr);
-        }
-    }
-
-    @Expose public static Object __reduce(Arguments args) {
-        var arr = args.self(ArrayValue.class);
-        var func = args.convert(0, FunctionValue.class);
-        var res = args.get(1);
-        var i = 0;
-
-        if (args.n() < 2) {
-            for (; i < arr.size(); i++) {
-                if (arr.has(i)){
-                    res = arr.get(i++);
-                    break;
-                }
-            }
-        }
-
-        for (; i < arr.size(); i++) {
-            if (arr.has(i)) {
-                res = func.call(args.ctx, null, res, arr.get(i), i, arr);
-            }
-        }
-
-        return res;
-    }
-    @Expose public static Object __reduceRight(Arguments args) {
-        var arr = args.self(ArrayValue.class);
-        var func = args.convert(0, FunctionValue.class);
-        var res = args.get(1);
-        var i = arr.size();
-
-        if (args.n() < 2) {
-            while (!arr.has(i--) && i >= 0) {
-                res = arr.get(i);
-            }
-        }
-        else i--;
-
-        for (; i >= 0; i--) {
-            if (arr.has(i)) {
-                res = func.call(args.ctx, null, res, arr.get(i), i, arr);
-            }
-        }
-
-        return res;
-    }
-
-    @Expose public static ArrayValue __flat(Arguments args) {
-        var arr = args.self(ArrayValue.class);
-        var depth = args.getInt(0, 1);
-        var res = new ArrayValue(arr.size());
-        var stack = new Stack<Object>();
-        var depths = new Stack<Integer>();
-
-        stack.push(arr);
-        depths.push(-1);
-
-        while (!stack.empty()) {
-            var el = stack.pop();
-            int d = depths.pop();
-
-            if ((d == -1 || d < depth) && el instanceof ArrayValue) {
-                var arrEl = (ArrayValue)el;
-                for (int i = arrEl.size() - 1; i >= 0; i--) {
-                    if (!arrEl.has(i)) continue;
-                    stack.push(arrEl.get(i));
-                    depths.push(d + 1);
-                }
-            }
-            else res.set(args.ctx, res.size(), el);
-        }
-
-        return res;
-    }
-    @Expose public static ArrayValue __flatMap(Arguments args) {
-        return __flat(new Arguments(args.ctx, __map(args), 1));
-    }
-
-    @Expose public static Object __find(Arguments args) {
-        var arr = args.self(ArrayValue.class);
-
-        for (int i = 0; i < arr.size(); i++) {
-            if (arr.has(i) && Values.toBoolean(Values.call(
-                args.ctx, args.get(0), args.get(1),
-                arr.get(i), i, args.self
-            ))) return arr.get(i);
-        }
-
-        return null;
-    }
-    @Expose public static Object __findLast(Arguments args) {
-        var arr = args.self(ArrayValue.class);
-
-        for (var i = arr.size() - 1; i >= 0; i--) {
-            if (arr.has(i) && Values.toBoolean(Values.call(
-                args.ctx, args.get(0), args.get(1),
-                arr.get(i), i, args.self
-            ))) return arr.get(i);
-        }
-
-        return null;
-    }
-
-    @Expose public static int __findIndex(Arguments args) {
-        var arr = args.self(ArrayValue.class);
-
-        for (int i = 0; i < arr.size(); i++) {
-            if (arr.has(i) && Values.toBoolean(Values.call(
-                args.ctx, args.get(0), args.get(1),
-                arr.get(i), i, args.self
-            ))) return i;
-        }
-
-        return -1;
-    }
-    @Expose public static int __findLastIndex(Arguments args) {
-        var arr = args.self(ArrayValue.class);
-
-        for (var i = arr.size() - 1; i >= 0; i--) {
-            if (arr.has(i) && Values.toBoolean(Values.call(
-                args.ctx, args.get(0), args.get(1),
-                arr.get(i), i, args.self
-            ))) return i;
-        }
-
-        return -1;
-    }
-
-    @Expose public static int __indexOf(Arguments args) {
-        var arr = args.self(ArrayValue.class);
-        var val = args.get(0);
-        var start = normalizeI(arr.size(), args.getInt(1), true);
-
-        for (int i = start; i < arr.size(); i++) {
-            if (Values.strictEquals(args.ctx, arr.get(i), val)) return i;
-        }
-
-        return -1;
-    }
-    @Expose public static int __lastIndexOf(Arguments args) {
-        var arr = args.self(ArrayValue.class);
-        var val = args.get(0);
-        var start = normalizeI(arr.size(), args.getInt(1), true);
-
-        for (int i = arr.size(); i >= start; i--) {
-            if (Values.strictEquals(args.ctx, arr.get(i), val)) return i;
-        }
-
-        return -1;
-    }
-
-    @Expose public static boolean __includes(Arguments args) {
-        return __indexOf(args) >= 0;
-    }
-
-    @Expose public static Object __pop(Arguments args) {
-        var arr = args.self(ArrayValue.class);
-        if (arr.size() == 0) return null;
-
-        var val = arr.get(arr.size() - 1);
-        arr.shrink(1);
-        return val;
-    }
-    @Expose public static int __push(Arguments args) {
-        var arr = args.self(ArrayValue.class);
-        var values = args.args;
-
-        arr.copyFrom(args.ctx, values, 0, arr.size(), values.length);
-        return arr.size();
-    }
-
-    @Expose public static Object __shift(Arguments args) {
-        var arr = args.self(ArrayValue.class);
-
-        if (arr.size() == 0) return null;
-        var val = arr.get(0);
-
-        arr.move(1, 0, arr.size());
-        arr.shrink(1);
-        return val;
-    }
-    @Expose public static int __unshift(Arguments args) {
-        var arr = args.self(ArrayValue.class);
-        var values = args.slice(0).args;
-
-        arr.move(0, values.length, arr.size());
-        arr.copyFrom(args.ctx, values, 0, 0, values.length);
-        return arr.size();
-    }
-
-    @Expose public static ArrayValue __slice(Arguments args) {
-        var arr = args.self(ArrayValue.class);
-        var start = normalizeI(arr.size(), args.getInt(0), true);
-        var end = normalizeI(arr.size(), args.getInt(1, arr.size()), true);
-
-        var res = new ArrayValue(end - start);
-        arr.copyTo(args.ctx, res, start, 0, end - start);
-        return res;
-    }
-
-    @Expose public static ArrayValue __splice(Arguments args) {
-        var arr = args.self(ArrayValue.class);
-        var start = normalizeI(arr.size(), args.getInt(0), true);
-        var deleteCount = normalizeI(arr.size(), args.getInt(1, arr.size()), true);
-        var items = args.slice(2).args;
-
-        if (start + deleteCount >= arr.size()) deleteCount = arr.size() - start;
-
-        var size = arr.size() - deleteCount + items.length;
-        var res = new ArrayValue(deleteCount);
-        arr.copyTo(args.ctx, res, start, 0, deleteCount);
-        arr.move(start + deleteCount, start + items.length, arr.size() - start - deleteCount);
-        arr.copyFrom(args.ctx, items, 0, start, items.length);
-        arr.setSize(size);
-
-        return res;
-    }
-    @Expose public static String __toString(Arguments args) {
-        return __join(new Arguments(args.ctx, args.self, ","));
-    }
-
-    @Expose public static String __join(Arguments args) {
-        var arr = args.self(ArrayValue.class);
-        var sep = args.getString(0, ", ");
-        var res = new StringBuilder();
-        var comma = false;
-
-        for (int i = 0; i < arr.size(); i++) {
-            if (!arr.has(i)) continue;
-
-            if (comma) res.append(sep);
-            comma = true;
-
-            var el = arr.get(i);
-            if (el == null || el == Values.NULL) continue;
-
-            res.append(Values.toString(args.ctx, el));
-        }
-
-        return res.toString();
-    }
-
-    @Expose(target = ExposeTarget.STATIC)
-    public static boolean __isArray(Arguments args) {
-        return args.get(0) instanceof ArrayValue;
-    }
-    @Expose(target = ExposeTarget.STATIC)
-    public static ArrayValue __of(Arguments args) {
-        return new ArrayValue(args.ctx, args.slice(0).args);
-    }
-
-    @ExposeConstructor public static ArrayValue __constructor(Arguments args) {
-        ArrayValue res;
-
-        if (args.n() == 1 && args.get(0) instanceof Number) {
-            var len = args.getInt(0);
-            res = new ArrayValue(len);
-            res.setSize(len);
-        }
-        else {
-            var val = args.args;
-            res = new ArrayValue(val.length);
-            res.copyFrom(args.ctx, val, 0, 0, val.length);
-        }
-
-        return res;
-    }
-}

src/java/me/topchetoeu/jscript/lib/AsyncFunctionLib.java

@@ -1,81 +0,0 @@
-package me.topchetoeu.jscript.lib;
-
-import me.topchetoeu.jscript.core.engine.Context;
-import me.topchetoeu.jscript.core.engine.frame.CodeFrame;
-import me.topchetoeu.jscript.core.engine.values.CodeFunction;
-import me.topchetoeu.jscript.core.engine.values.FunctionValue;
-import me.topchetoeu.jscript.core.engine.values.NativeFunction;
-import me.topchetoeu.jscript.core.engine.values.Values;
-import me.topchetoeu.jscript.core.exceptions.EngineException;
-import me.topchetoeu.jscript.lib.PromiseLib.Handle;
-import me.topchetoeu.jscript.utils.interop.Arguments;
-import me.topchetoeu.jscript.utils.interop.WrapperName;
-
-@WrapperName("AsyncFunction")
-public class AsyncFunctionLib extends FunctionValue {
-    public final FunctionValue factory;
-
-    private static class AsyncHelper {
-        public PromiseLib promise = new PromiseLib();
-        public CodeFrame frame;
-
-        private boolean awaiting = false;
-
-        private void next(Context ctx, Object inducedValue, EngineException inducedError) {
-            Object res = null;
-
-            frame.onPush();
-            awaiting = false;
-            while (!awaiting) {
-                try {
-                    res = frame.next(inducedValue, Values.NO_RETURN, inducedError);
-                    inducedValue = Values.NO_RETURN;
-                    inducedError = null;
-
-                    if (res != Values.NO_RETURN) {
-                        promise.fulfill(ctx, res);
-                        break;
-                    }
-                }
-                catch (EngineException e) {
-                    promise.reject(ctx, e);
-                    break;
-                }
-            }
-            frame.onPop();
-
-            if (awaiting) {
-                PromiseLib.handle(ctx, frame.pop(), new Handle() {
-                    @Override
-                    public void onFulfil(Object val) {
-                        next(ctx, val, null);
-                    }
-                    @Override
-                    public void onReject(EngineException err) {
-                        next(ctx, Values.NO_RETURN, err);
-                    }
-                });
-            }
-        }
-
-        public Object await(Arguments args) {
-            this.awaiting = true;
-            return args.get(0);
-        }
-    }
-
-    @Override
-    public Object call(Context ctx, Object thisArg, Object ...args) {
-        var handler = new AsyncHelper();
-        var func = factory.call(ctx, thisArg, new NativeFunction("await", handler::await));
-        if (!(func instanceof CodeFunction)) throw EngineException.ofType("Return value of argument must be a js function.");
-        handler.frame = new CodeFrame(ctx, thisArg, args, (CodeFunction)func);
-        handler.next(ctx, Values.NO_RETURN, null);
-        return handler.promise;
-    }
-
-    public AsyncFunctionLib(FunctionValue factory) {
-        super(factory.name, factory.length);
-        this.factory = factory;
-    }
-}

src/java/me/topchetoeu/jscript/lib/AsyncGeneratorFunctionLib.java

@@ -1,31 +0,0 @@
-package me.topchetoeu.jscript.lib;
-
-import me.topchetoeu.jscript.core.engine.Context;
-import me.topchetoeu.jscript.core.engine.frame.CodeFrame;
-import me.topchetoeu.jscript.core.engine.values.CodeFunction;
-import me.topchetoeu.jscript.core.engine.values.FunctionValue;
-import me.topchetoeu.jscript.core.engine.values.NativeFunction;
-import me.topchetoeu.jscript.core.exceptions.EngineException;
-import me.topchetoeu.jscript.utils.interop.WrapperName;
-
-@WrapperName("AsyncGeneratorFunction")
-public class AsyncGeneratorFunctionLib extends FunctionValue {
-    public final FunctionValue factory;
-
-    @Override
-    public Object call(Context ctx, Object thisArg, Object ...args) {
-        var handler = new AsyncGeneratorLib();
-        var func = factory.call(ctx, thisArg,
-            new NativeFunction("await", handler::await),
-            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(ctx, thisArg, args, (CodeFunction)func);
-        return handler;
-    }
-
-    public AsyncGeneratorFunctionLib(FunctionValue factory) {
-        super(factory.name, factory.length);
-        this.factory = factory;
-    }
-}

src/java/me/topchetoeu/jscript/lib/AsyncGeneratorLib.java

@@ -1,107 +0,0 @@
-package me.topchetoeu.jscript.lib;
-
-import java.util.Map;
-
-import me.topchetoeu.jscript.core.engine.Context;
-import me.topchetoeu.jscript.core.engine.frame.CodeFrame;
-import me.topchetoeu.jscript.core.engine.values.ObjectValue;
-import me.topchetoeu.jscript.core.engine.values.Values;
-import me.topchetoeu.jscript.core.exceptions.EngineException;
-import me.topchetoeu.jscript.lib.PromiseLib.Handle;
-import me.topchetoeu.jscript.utils.interop.Arguments;
-import me.topchetoeu.jscript.utils.interop.Expose;
-import me.topchetoeu.jscript.utils.interop.WrapperName;
-
-@WrapperName("AsyncGenerator")
-public class AsyncGeneratorLib {
-    private int state = 0;
-    private boolean done = false;
-    private PromiseLib currPromise;
-    public CodeFrame frame;
-
-    private void next(Context ctx, Object inducedValue, Object inducedReturn, EngineException inducedError) {
-        if (done) {
-            if (inducedError != null) throw inducedError;
-            currPromise.fulfill(ctx, new ObjectValue(ctx, Map.of(
-                "done", true,
-                "value", inducedReturn == Values.NO_RETURN ? null : inducedReturn
-            )));
-            return;
-        }
-
-        Object res = null;
-        state = 0;
-
-        frame.onPush();
-        while (state == 0) {
-            try {
-                res = frame.next(inducedValue, inducedReturn, inducedError);
-                inducedValue = inducedReturn = Values.NO_RETURN;
-                inducedError = null;
-
-                if (res != Values.NO_RETURN) {
-                    var obj = new ObjectValue();
-                    obj.defineProperty(ctx, "done", true);
-                    obj.defineProperty(ctx, "value", res);
-                    currPromise.fulfill(ctx, obj);
-                    break;
-                }
-            }
-            catch (EngineException e) {
-                currPromise.reject(ctx, e);
-                break;
-            }
-        }
-        frame.onPop();
-
-        if (state == 1) {
-            PromiseLib.handle(ctx, frame.pop(), new Handle() {
-                @Override public void onFulfil(Object val) {
-                    next(ctx, val, Values.NO_RETURN, null);
-                }
-                @Override public void onReject(EngineException err) {
-                    next(ctx, Values.NO_RETURN, Values.NO_RETURN, err);
-                }
-            });
-        }
-        else if (state == 2) {
-            var obj = new ObjectValue();
-            obj.defineProperty(ctx, "done", false);
-            obj.defineProperty(ctx, "value", frame.pop());
-            currPromise.fulfill(ctx, obj);
-        }
-    }
-
-    @Override
-    public String toString() {
-        if (done) return "Generator [closed]";
-        if (state != 0) return "Generator [suspended]";
-        return "Generator [running]";
-    }
-
-    public Object await(Arguments args) {
-        this.state = 1;
-        return args.get(0);
-    }
-    public Object yield(Arguments args) {
-        this.state = 2;
-        return args.get(0);
-    }
-
-    @Expose public PromiseLib __next(Arguments args) {
-        this.currPromise = new PromiseLib();
-        if (args.has(0)) next(args.ctx, args.get(0), Values.NO_RETURN, null);
-        else next(args.ctx, Values.NO_RETURN, Values.NO_RETURN, null);
-        return this.currPromise;
-    }
-    @Expose public PromiseLib __return(Arguments args) {
-        this.currPromise = new PromiseLib();
-        next(args.ctx, Values.NO_RETURN, args.get(0), null);
-        return this.currPromise;
-    }
-    @Expose public PromiseLib __throw(Arguments args) {
-        this.currPromise = new PromiseLib();
-        next(args.ctx, Values.NO_RETURN, Values.NO_RETURN, new EngineException(args.get(0)).setCtx(args.ctx));
-        return this.currPromise;
-    }
-}

src/java/me/topchetoeu/jscript/lib/BooleanLib.java

@@ -1,37 +0,0 @@
-package me.topchetoeu.jscript.lib;
-
-import me.topchetoeu.jscript.core.engine.values.ObjectValue;
-import me.topchetoeu.jscript.core.engine.values.Values;
-import me.topchetoeu.jscript.utils.interop.Arguments;
-import me.topchetoeu.jscript.utils.interop.Expose;
-import me.topchetoeu.jscript.utils.interop.ExposeConstructor;
-import me.topchetoeu.jscript.utils.interop.WrapperName;
-
-@WrapperName("Boolean")
-public class BooleanLib {
-    public static final BooleanLib TRUE = new BooleanLib(true);
-    public static final BooleanLib FALSE = new BooleanLib(false);
-
-    public final boolean value;
-
-    @Override public String toString() {
-        return value + "";
-    }
-
-    public BooleanLib(boolean val) {
-        this.value = val;
-    }
-
-    @ExposeConstructor public static Object __constructor(Arguments args) {
-        var val = args.getBoolean(0);
-        if (args.self instanceof ObjectValue) return val ? TRUE : FALSE;
-        else return val;
-    }
-    @Expose public static String __toString(Arguments args) {
-        return args.self(Boolean.class) ? "true" : "false";
-    }
-    @Expose public static boolean __valueOf(Arguments args) {
-        if (Values.isWrapper(args.self, BooleanLib.class)) return Values.wrapper(args.self, BooleanLib.class).value;
-        return args.self(Boolean.class);
-    }
-}

src/java/me/topchetoeu/jscript/lib/ConsoleLib.java

@@ -1,36 +0,0 @@
-package me.topchetoeu.jscript.lib;
-
-import java.io.IOException;
-import java.io.OutputStream;
-
-import me.topchetoeu.jscript.core.engine.values.Values;
-import me.topchetoeu.jscript.utils.filesystem.FilesystemException;
-import me.topchetoeu.jscript.utils.filesystem.FilesystemException.FSCode;
-import me.topchetoeu.jscript.utils.interop.Arguments;
-import me.topchetoeu.jscript.utils.interop.Expose;
-import me.topchetoeu.jscript.utils.interop.WrapperName;
-
-@WrapperName("Console")
-public class ConsoleLib {
-    private final OutputStream stream;
-
-    @Expose
-    public void __log(Arguments args) {
-        try {
-            var first = true;
-            for (var el : args.args) {
-                if (!first) stream.write(" ".getBytes());
-                first = false;
-                stream.write(Values.toReadable(args.ctx, el).getBytes());
-            }
-            stream.write((byte)'\n');
-        }
-        catch (IOException e) {
-            throw new FilesystemException("stdout", FSCode.NO_PERMISSIONS_RW);
-        }
-    }
-
-    public ConsoleLib(OutputStream stream) {
-        this.stream = stream;
-    }
-}

src/java/me/topchetoeu/jscript/lib/DateLib.java

@@ -1,266 +0,0 @@
-package me.topchetoeu.jscript.lib;
-
-import java.util.Calendar;
-import java.util.Date;
-import java.util.TimeZone;
-
-import me.topchetoeu.jscript.utils.interop.Arguments;
-import me.topchetoeu.jscript.utils.interop.Expose;
-import me.topchetoeu.jscript.utils.interop.ExposeConstructor;
-import me.topchetoeu.jscript.utils.interop.ExposeTarget;
-import me.topchetoeu.jscript.utils.interop.WrapperName;
-
-@WrapperName("Date")
-public class DateLib {
-    private Calendar normal;
-    private Calendar utc;
-
-    private void updateUTC() {
-        if (utc == null || normal == null) return;
-        utc.setTimeInMillis(normal.getTimeInMillis());
-    }
-    private void updateNormal() {
-        if (utc == null || normal == null) return;
-        normal.setTimeInMillis(utc.getTimeInMillis());
-    }
-    private void invalidate() {
-        normal = utc = null;
-    }
-
-    @Expose public double __getYear() {
-        if (normal == null) return Double.NaN;
-        return normal.get(Calendar.YEAR) - 1900;
-    }
-    @Expose public double __setYeard(Arguments args) {
-        var real = args.getDouble(0);
-        if (real >= 0 && real <= 99) real = real + 1900;
-        if (Double.isNaN(real)) invalidate();
-        else normal.set(Calendar.YEAR, (int)real);
-        updateUTC();
-        return __getTime();
-    }
-
-    @Expose public double __getFullYear() {
-        if (normal == null) return Double.NaN;
-        return normal.get(Calendar.YEAR);
-    }
-    @Expose public double __getMonth() {
-        if (normal == null) return Double.NaN;
-        return normal.get(Calendar.MONTH);
-    }
-    @Expose public double __getDate() {
-        if (normal == null) return Double.NaN;
-        return normal.get(Calendar.DAY_OF_MONTH);
-    }
-    @Expose public double __getDay() {
-        if (normal == null) return Double.NaN;
-        return normal.get(Calendar.DAY_OF_WEEK);
-    }
-    @Expose public double __getHours() {
-        if (normal == null) return Double.NaN;
-        return normal.get(Calendar.HOUR_OF_DAY);
-    }
-    @Expose public double __getMinutes() {
-        if (normal == null) return Double.NaN;
-        return normal.get(Calendar.MINUTE);
-    }
-    @Expose public double __getSeconds() {
-        if (normal == null) return Double.NaN;
-        return normal.get(Calendar.SECOND);
-    }
-    @Expose public double __getMilliseconds() {
-        if (normal == null) return Double.NaN;
-        return normal.get(Calendar.MILLISECOND);
-    }
-
-    @Expose public double __getUTCFullYear() {
-        if (utc == null) return Double.NaN;
-        return utc.get(Calendar.YEAR);
-    }
-    @Expose public double __getUTCMonth() {
-        if (utc == null) return Double.NaN;
-        return utc.get(Calendar.MONTH);
-    }
-    @Expose public double __getUTCDate() {
-        if (utc == null) return Double.NaN;
-        return utc.get(Calendar.DAY_OF_MONTH);
-    }
-    @Expose public double __getUTCDay() {
-        if (utc == null) return Double.NaN;
-        return utc.get(Calendar.DAY_OF_WEEK);
-    }
-    @Expose public double __getUTCHours() {
-        if (utc == null) return Double.NaN;
-        return utc.get(Calendar.HOUR_OF_DAY);
-    }
-    @Expose public double __getUTCMinutes() {
-        if (utc == null) return Double.NaN;
-        return utc.get(Calendar.MINUTE);
-    }
-    @Expose public double __getUTCSeconds() {
-        if (utc == null) return Double.NaN;
-        return utc.get(Calendar.SECOND);
-    }
-    @Expose public double __getUTCMilliseconds() {
-        if (utc == null) return Double.NaN;
-        return utc.get(Calendar.MILLISECOND);
-    }
-
-    @Expose public double __setFullYear(Arguments args) {
-        var real = args.getDouble(0);
-        if (Double.isNaN(real)) invalidate();
-        else normal.set(Calendar.YEAR, (int)real);
-        updateUTC();
-        return __getTime();
-    }
-    @Expose public double __setMonthd(Arguments args) {
-        var real = args.getDouble(0);
-        if (Double.isNaN(real)) invalidate();
-        else normal.set(Calendar.MONTH, (int)real);
-        updateUTC();
-        return __getTime();
-    }
-    @Expose public double __setDated(Arguments args) {
-        var real = args.getDouble(0);
-        if (Double.isNaN(real)) invalidate();
-        else normal.set(Calendar.DAY_OF_MONTH, (int)real);
-        updateUTC();
-        return __getTime();
-    }
-    @Expose public double __setDayd(Arguments args) {
-        var real = args.getDouble(0);
-        if (Double.isNaN(real)) invalidate();
-        else normal.set(Calendar.DAY_OF_WEEK, (int)real);
-        updateUTC();
-        return __getTime();
-    }
-    @Expose public double __setHoursd(Arguments args) {
-        var real = args.getDouble(0);
-        if (Double.isNaN(real)) invalidate();
-        else normal.set(Calendar.HOUR_OF_DAY, (int)real);
-        updateUTC();
-        return __getTime();
-    }
-    @Expose public double __setMinutesd(Arguments args) {
-        var real = args.getDouble(0);
-        if (Double.isNaN(real)) invalidate();
-        else normal.set(Calendar.MINUTE, (int)real);
-        updateUTC();
-        return __getTime();
-    }
-    @Expose public double __setSecondsd(Arguments args) {
-        var real = args.getDouble(0);
-        if (Double.isNaN(real)) invalidate();
-        else normal.set(Calendar.SECOND, (int)real);
-        updateUTC();
-        return __getTime();
-    }
-    @Expose public double __setMillisecondsd(Arguments args) {
-        var real = args.getDouble(0);
-        if (Double.isNaN(real)) invalidate();
-        else normal.set(Calendar.MILLISECOND, (int)real);
-        updateUTC();
-        return __getTime();
-    }
-
-    @Expose public double __setUTCFullYeard(Arguments args) {
-        var real = args.getDouble(0);
-        if (Double.isNaN(real)) invalidate();
-        else utc.set(Calendar.YEAR, (int)real);
-        updateNormal();
-        return __getTime();
-    }
-    @Expose public double __setUTCMonthd(Arguments args) {
-        var real = args.getDouble(0);
-        if (Double.isNaN(real)) invalidate();
-        else utc.set(Calendar.MONTH, (int)real);
-        updateNormal();
-        return __getTime();
-    }
-    @Expose public double __setUTCDated(Arguments args) {
-        var real = args.getDouble(0);
-        if (Double.isNaN(real)) invalidate();
-        else utc.set(Calendar.DAY_OF_MONTH, (int)real);
-        updateNormal();
-        return __getTime();
-    }
-    @Expose public double __setUTCDayd(Arguments args) {
-        var real = args.getDouble(0);
-        if (Double.isNaN(real)) invalidate();
-        else utc.set(Calendar.DAY_OF_WEEK, (int)real);
-        updateNormal();
-        return __getTime();
-    }
-    @Expose public double __setUTCHoursd(Arguments args) {
-        var real = args.getDouble(0);
-        if (Double.isNaN(real)) invalidate();
-        else utc.set(Calendar.HOUR_OF_DAY, (int)real);
-        updateNormal();
-        return __getTime();
-    }
-    @Expose public double __setUTCMinutesd(Arguments args) {
-        var real = args.getDouble(0);
-        if (Double.isNaN(real)) invalidate();
-        else utc.set(Calendar.MINUTE, (int)real);
-        updateNormal();
-        return __getTime();
-    }
-    @Expose public double __setUTCSecondsd(Arguments args) {
-        var real = args.getDouble(0);
-        if (Double.isNaN(real)) invalidate();
-        else utc.set(Calendar.SECOND, (int)real);
-        updateNormal();
-        return __getTime();
-    }
-    @Expose public double __setUTCMillisecondsd(Arguments args) {
-        var real = args.getDouble(0);
-        if (Double.isNaN(real)) invalidate();
-        else utc.set(Calendar.MILLISECOND, (int)real);
-        updateNormal();
-        return __getTime();
-    }
-
-    @Expose public double __getTime() {
-        if (utc == null) return Double.NaN;
-        return utc.getTimeInMillis();
-    }
-    @Expose public double __getTimezoneOffset() {
-        if (normal == null) return Double.NaN;
-        return normal.getTimeZone().getRawOffset() / 60000;
-    }
-
-    @Expose public double __valueOf() {
-        if (normal == null) return Double.NaN;
-        else return normal.getTimeInMillis();
-    }
-
-    @Expose public String __toString() {
-        return normal.getTime().toString();
-    }
-
-    @Override public String toString() {
-        return __toString();
-    }
-
-    public DateLib(long timestamp) {
-        normal = Calendar.getInstance();
-        utc = Calendar.getInstance();
-        normal.setTimeInMillis(timestamp);
-        utc.setTimeZone(TimeZone.getTimeZone("UTC"));
-        utc.setTimeInMillis(timestamp);
-    }
-
-    public DateLib() {
-        this(new Date().getTime());
-    }
-
-    @ExposeConstructor public static DateLib init(Arguments args) {
-        if (args.has(0)) return new DateLib(args.getLong(0));
-        else return new DateLib();
-    }
-
-    @Expose(target = ExposeTarget.STATIC)
-    public static double __now() {
-        return new DateLib().__getTime();
-    }
-}

src/java/me/topchetoeu/jscript/lib/EncodingLib.java

@@ -1,89 +0,0 @@
-package me.topchetoeu.jscript.lib;
-
-import java.util.ArrayList;
-
-import me.topchetoeu.jscript.common.Buffer;
-import me.topchetoeu.jscript.core.engine.values.ArrayValue;
-import me.topchetoeu.jscript.core.engine.values.Values;
-import me.topchetoeu.jscript.core.exceptions.EngineException;
-import me.topchetoeu.jscript.core.parsing.Parsing;
-import me.topchetoeu.jscript.utils.interop.Arguments;
-import me.topchetoeu.jscript.utils.interop.Expose;
-import me.topchetoeu.jscript.utils.interop.ExposeTarget;
-import me.topchetoeu.jscript.utils.interop.WrapperName;
-
-@WrapperName("Encoding")
-public class EncodingLib {
-    private static final String HEX = "0123456789ABCDEF";
-
-    public static String encodeUriAny(String str, String keepAlphabet) {
-        if (str == null) str = "undefined";
-
-        var bytes = str.getBytes();
-        var sb = new StringBuilder(bytes.length);
-
-        for (byte c : bytes) {
-            if (Parsing.isAlphanumeric((char)c) || Parsing.isAny((char)c, keepAlphabet)) sb.append((char)c);
-            else {
-                sb.append('%');
-                sb.append(HEX.charAt(c / 16));
-                sb.append(HEX.charAt(c % 16));
-            }
-        }
-
-        return sb.toString();
-    }
-    public static String decodeUriAny(String str, String keepAlphabet) {
-        if (str == null) str = "undefined";
-
-        var res = new Buffer();
-        var bytes = str.getBytes();
-
-        for (var i = 0; i < bytes.length; i++) {
-            var c = bytes[i];
-            if (c == '%') {
-                if (i >= bytes.length - 2) throw EngineException.ofError("URIError", "URI malformed.");
-                var b = Parsing.fromHex((char)bytes[i + 1]) * 16 | Parsing.fromHex((char)bytes[i + 2]);
-                if (!Parsing.isAny((char)b, keepAlphabet)) {
-                    i += 2;
-                    res.append((byte)b);
-                    continue;
-                }
-            }
-            res.append(c);
-        }
-
-        return new String(res.data());
-    }
-
-    @Expose(target = ExposeTarget.STATIC)
-    public static ArrayValue __encode(Arguments args) {
-        var res = new ArrayValue();
-        for (var el : args.getString(0).getBytes()) res.set(null, res.size(), (int)el);
-        return res;
-    }
-    @Expose(target = ExposeTarget.STATIC)
-    public static String __decode(Arguments args) {
-        var raw = args.convert(0, ArrayList.class);
-        var res = new byte[raw.size()];
-        for (var i = 0; i < raw.size(); i++) res[i] = (byte)Values.toNumber(args.ctx, raw.get(i));
-        return new String(res);
-    }
-
-    @Expose(target = ExposeTarget.STATIC)
-    public static String __encodeURIComponent(Arguments args) {
-        return EncodingLib.encodeUriAny(args.getString(0), ".-_!~*'()");
-    }
-    @Expose(target = ExposeTarget.STATIC)
-    public static String __decodeURIComponent(Arguments args) {
-        return decodeUriAny(args.getString(0), "");
-    }
-    @Expose(target = ExposeTarget.STATIC)
-    public static String __encodeURI(Arguments args) {
-        return encodeUriAny(args.getString(0), ";,/?:@&=+$#.-_!~*'()");
-    }
-    @Expose(target = ExposeTarget.STATIC)
-    public static String __decodeURI(Arguments args) {
-        return decodeUriAny(args.getString(0), ",/?:@&=+$#.");
-    }
-}

src/java/me/topchetoeu/jscript/lib/EnvironmentLib.java

@@ -1,39 +0,0 @@
-package me.topchetoeu.jscript.lib;
-
-import me.topchetoeu.jscript.core.engine.Environment;
-import me.topchetoeu.jscript.core.engine.values.FunctionValue;
-import me.topchetoeu.jscript.core.engine.values.ObjectValue;
-import me.topchetoeu.jscript.utils.interop.Arguments;
-import me.topchetoeu.jscript.utils.interop.Expose;
-import me.topchetoeu.jscript.utils.interop.ExposeType;
-import me.topchetoeu.jscript.utils.interop.WrapperName;
-
-@WrapperName("Environment")
-public class EnvironmentLib {
-    private Environment env;
-
-    @Expose(value = "@@env", type = ExposeType.GETTER)
-    public Environment __env() { return env; }
-
-    @Expose(type = ExposeType.GETTER)
-    public int __id(Arguments args) {
-        return env.hashCode();
-    }
-    @Expose(type = ExposeType.GETTER)
-    public ObjectValue __global(Arguments args) {
-        return env.global.obj;
-    }
-
-    @Expose(type = ExposeType.GETTER)
-    public FunctionValue __compile() {
-        return Environment.compileFunc(env);
-    }
-    @Expose(type = ExposeType.SETTER)
-    public void __compile(Arguments args) {
-        env.add(Environment.COMPILE_FUNC, args.convert(0, FunctionValue.class));
-    }
-
-    public EnvironmentLib(Environment env) {
-        this.env = env;
-    }
-}