fix: fuck

feat: allow adding custom wrappers

.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.

gradle.properties

@@ -1,4 +1,4 @@
 project_group = me.topchetoeu
 project_name = jscript
-project_version = 0.9.11-beta
+project_version = 0.9.27-beta
 main_class = me.topchetoeu.jscript.utils.JScriptRepl

src/java/me/topchetoeu/jscript/common/mapping/FunctionMap.java

@@ -104,7 +104,9 @@ public class FunctionMap {
 
         var res = new ArrayList<Location>(candidates.size());
         for (var candidate : candidates.entrySet()) {
-            res.add(candidate.getValue().ceiling(new Location(line, column, candidate.getKey())));
+            var val = correctBreakpoint(new Location(line, column, candidate.getKey()));
+            if (val == null) continue;
+            res.add(val);
         }
 
         return res;

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

@@ -0,0 +1,73 @@
+package me.topchetoeu.jscript.compilation.control;
+
+import me.topchetoeu.jscript.common.Instruction;
+import me.topchetoeu.jscript.common.Location;
+import me.topchetoeu.jscript.common.Instruction.BreakpointType;
+import me.topchetoeu.jscript.compilation.CompileResult;
+import me.topchetoeu.jscript.compilation.Statement;
+
+public class ForOfStatement extends Statement {
+    public final String varName;
+    public final boolean isDeclaration;
+    public final Statement iterable, body;
+    public final String label;
+    public final Location varLocation;
+
+    @Override
+    public void declare(CompileResult target) {
+        body.declare(target);
+        if (isDeclaration) target.scope.define(varName);
+    }
+
+    @Override
+    public void compile(CompileResult target, boolean pollute) {
+        var key = target.scope.getKey(varName);
+
+        if (key instanceof String) target.add(Instruction.makeVar((String)key));
+
+        iterable.compile(target, true, BreakpointType.STEP_OVER);
+        target.add(Instruction.dup());
+        target.add(Instruction.loadVar("Symbol"));
+        target.add(Instruction.pushValue("iterator"));
+        target.add(Instruction.loadMember()).setLocation(iterable.loc());
+        target.add(Instruction.loadMember()).setLocation(iterable.loc());
+        target.add(Instruction.call(0)).setLocation(iterable.loc());
+
+        int start = target.size();
+        target.add(Instruction.dup());
+        target.add(Instruction.dup());
+        target.add(Instruction.pushValue("next"));
+        target.add(Instruction.loadMember()).setLocation(iterable.loc());
+        target.add(Instruction.call(0)).setLocation(iterable.loc());
+        target.add(Instruction.dup());
+        target.add(Instruction.pushValue("done"));
+        target.add(Instruction.loadMember()).setLocation(iterable.loc());
+        int mid = target.temp();
+
+        target.add(Instruction.pushValue("value"));
+        target.add(Instruction.loadMember()).setLocation(varLocation);
+        target.add(Instruction.storeVar(key)).setLocationAndDebug(iterable.loc(), BreakpointType.STEP_OVER);
+
+        body.compile(target, false, BreakpointType.STEP_OVER);
+
+        int end = target.size();
+
+        WhileStatement.replaceBreaks(target, label, mid + 1, end, start, end + 1);
+
+        target.add(Instruction.jmp(start - end));
+        target.add(Instruction.discard());
+        target.add(Instruction.discard());
+        target.set(mid, Instruction.jmpIf(end - mid + 1));
+        if (pollute) target.add(Instruction.pushUndefined());
+    }
+
+    public ForOfStatement(Location loc, Location varLocation, String label, boolean isDecl, String varName, Statement object, Statement body) {
+        super(loc);
+        this.varLocation = varLocation;
+        this.label = label;
+        this.isDeclaration = isDecl;
+        this.varName = varName;
+        this.iterable = object;
+        this.body = body;
+    }
+}

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

@@ -1777,6 +1777,46 @@ public class Parsing {
 
         return ParseRes.res(new ForInStatement(loc, nameLoc, labelRes.result, isDecl, nameRes.result, varVal, objRes.result, bodyRes.result), n);
     }
+    public static ParseRes<ForOfStatement> parseForOf(Filename filename, List<Token> tokens, int i) {
+        var loc = getLoc(filename, tokens, i);
+        int n = 0;
+
+        var labelRes = parseLabel(tokens, i + n);
+        var isDecl = false;
+        n += labelRes.n;
+
+        if (!isIdentifier(tokens, i + n++, "for")) return ParseRes.failed();
+        if (!isOperator(tokens, i + n++, Operator.PAREN_OPEN)) return ParseRes.error(loc, "Expected a open paren after 'for'.");
+
+        if (isIdentifier(tokens, i + n, "var")) {
+            isDecl = true;
+            n++;
+        }
+
+        var nameRes = parseIdentifier(tokens, i + n);
+        if (!nameRes.isSuccess()) return ParseRes.error(loc, "Expected a variable name for 'for' loop.");
+        var nameLoc = getLoc(filename, tokens, i + n);
+        n += nameRes.n;
+
+        if (!isIdentifier(tokens, i + n++, "of")) {
+            if (nameRes.result.equals("const")) return ParseRes.error(loc, "'const' declarations are not supported.");
+            else if (nameRes.result.equals("let")) return ParseRes.error(loc, "'let' declarations are not supported.");
+            else return ParseRes.error(loc, "Expected 'of' keyword after variable declaration.");
+        }
+
+        var objRes = parseValue(filename, tokens, i + n, 0);
+        if (!objRes.isSuccess()) return ParseRes.error(loc, "Expected a value.", objRes);
+        n += objRes.n;
+
+        if (!isOperator(tokens, i + n++, Operator.PAREN_CLOSE)) return ParseRes.error(loc, "Expected a closing paren after for.");
+
+
+        var bodyRes = parseStatement(filename, tokens, i + n);
+        if (!bodyRes.isSuccess()) return ParseRes.error(loc, "Expected a for body.", bodyRes);
+        n += bodyRes.n;
+
+        return ParseRes.res(new ForOfStatement(loc, nameLoc, labelRes.result, isDecl, nameRes.result, objRes.result, bodyRes.result), n);
+    }
     public static ParseRes<TryStatement> parseCatch(Filename filename, List<Token> tokens, int i) {
         var loc = getLoc(filename, tokens, i);
         int n = 0;
@@ -1833,6 +1873,7 @@ public class Parsing {
             parseSwitch(filename, tokens, i),
             parseFor(filename, tokens, i),
             parseForIn(filename, tokens, i),
+            parseForOf(filename, tokens, i),
             parseDoWhile(filename, tokens, i),
             parseCatch(filename, tokens, i),
             parseCompound(filename, tokens, i),

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

@@ -0,0 +1,18 @@
+package me.topchetoeu.jscript.lib;
+
+import me.topchetoeu.jscript.utils.interop.Arguments;
+import me.topchetoeu.jscript.utils.interop.Expose;
+
+public class ThrowableLib {
+    @Expose public static String __message(Arguments args) {
+        if (args.self instanceof Throwable) return ((Throwable)args.self).getMessage();
+        else return null;
+    }
+    @Expose public static String __name(Arguments args) {
+        return args.self.getClass().getSimpleName();
+    }
+
+    @Expose public static String __toString(Arguments args) {
+        return __name(args) + ": " + __message(args);
+    }
+}

src/java/me/topchetoeu/jscript/runtime/Environment.java

@@ -61,7 +61,7 @@ public class Environment implements Extensions {
     }
 
     public Environment copy() {
-        var res = new Environment(null, global);
+        var res = new Environment();
 
         res.wrappers = wrappers.fork(res);
         res.global = global;
@@ -80,7 +80,7 @@ public class Environment implements Extensions {
     }
 
     public Environment(WrapperProvider nativeConverter, GlobalScope global) {
-        if (nativeConverter == null) nativeConverter = new NativeWrapperProvider(this);
+        if (nativeConverter == null) nativeConverter = new NativeWrapperProvider();
         if (global == null) global = new GlobalScope();
 
         this.wrappers = nativeConverter;

src/java/me/topchetoeu/jscript/runtime/debug/DebugContext.java

@@ -32,10 +32,17 @@ public class DebugContext {
         if (sources != null) {
             for (var source : sources.entrySet()) debugger.onSourceLoad(source.getKey(), source.getValue());
         }
+        if (maps != null) {
+            for (var map : maps.entrySet()) debugger.onFunctionLoad(map.getKey(), map.getValue());
+        }
 
         this.debugger = debugger;
         return true;
     }
+    public boolean detachDebugger(DebugHandler debugger) {
+        if (this.debugger != debugger) return false;
+        return detachDebugger();
+    }
     public boolean detachDebugger() {
         this.debugger = null;
         return true;

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

@@ -1,15 +1,24 @@
 package me.topchetoeu.jscript.runtime.values;
 
+import java.util.WeakHashMap;
+
 import me.topchetoeu.jscript.runtime.Context;
+import me.topchetoeu.jscript.runtime.Extensions;
+import me.topchetoeu.jscript.runtime.Key;
 
 public class NativeWrapper extends ObjectValue {
+    private static final Key<WeakHashMap<Object, NativeWrapper>> WRAPPERS = new Key<>();
     private static final Object NATIVE_PROTO = new Object();
     public final Object wrapped;
 
     @Override
     public ObjectValue getPrototype(Context ctx) {
-        if (ctx.environment != null && prototype == NATIVE_PROTO) return ctx.environment.wrappers.getProto(wrapped.getClass());
-        else return super.getPrototype(ctx);
+        if (ctx.environment != null && prototype == NATIVE_PROTO) {
+            var clazz = wrapped.getClass();
+            var res = ctx.environment.wrappers.getProto(clazz);
+            if (res != null) return res;
+        }
+        return super.getPrototype(ctx);
     }
 
     @Override
@@ -25,8 +34,20 @@ public class NativeWrapper extends ObjectValue {
         return wrapped.hashCode();
     }
 
-    public NativeWrapper(Object wrapped) {
+    private NativeWrapper(Object wrapped) {
         this.wrapped = wrapped;
         prototype = NATIVE_PROTO;
     }
+
+    public static NativeWrapper of(Extensions exts, Object wrapped) {
+        var wrappers = exts == null ? null : exts.get(WRAPPERS);
+
+        if (wrappers == null) return new NativeWrapper(wrapped);
+        if (wrappers.containsKey(wrapped)) return wrappers.get(wrapped);
+
+        var res = new NativeWrapper(wrapped);
+        wrappers.put(wrapped, res);
+
+        return res;
+    }
 }

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

@@ -153,18 +153,18 @@ public class ObjectValue {
     }
 
     public ObjectValue getPrototype(Context ctx) {
+        if (prototype instanceof ObjectValue || prototype == null) return (ObjectValue)prototype;
+
         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);
+            return ctx.get(Environment.OBJECT_PROTO);
         }
         catch (NullPointerException e) { return null; }
-
-        return (ObjectValue)prototype;
     }
     public final boolean setPrototype(PlaceholderProto val) {
         if (!extensible()) return false;

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

@@ -58,9 +58,8 @@ public class Values {
 
     @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;
+        if (isWrapper(val)) val = ((NativeWrapper)val).wrapped;
+        if (val != null && clazz.isInstance(val)) return (T)val;
         else return null;
     }
 
@@ -471,7 +470,7 @@ public class Values {
             else return ctx.environment.wrappers.getConstr((Class<?>)val);
         }
 
-        return new NativeWrapper(val);
+        return NativeWrapper.of(ctx, val);
     }
 
     @SuppressWarnings("unchecked")
@@ -536,7 +535,7 @@ public class Values {
         if (obj == null) return null;
         if (clazz.isInstance(obj)) return (T)obj;
         if (clazz.isAssignableFrom(NativeWrapper.class)) {
-            return (T)new NativeWrapper(obj);
+            return (T)NativeWrapper.of(ctx, obj);
         }
 
         throw new ConvertException(type(obj), clazz.getSimpleName());

src/java/me/topchetoeu/jscript/utils/debug/DebugServer.java

@@ -137,6 +137,13 @@ public class DebugServer {
         }
 
         runAsync(() -> {
+            var handle = new Thread(() -> {
+                System.out.println("test");
+                debugger.close();
+            });
+
+            Runtime.getRuntime().addShutdownHook(handle);
+
             try { handle(ws, debugger); }
             catch (RuntimeException | IOException e) {
                 try {
@@ -145,7 +152,11 @@ public class DebugServer {
                 }
                 catch (IOException e2) { /* Shit outta luck */ }
             }
-            finally { ws.close(); debugger.close(); }
+            finally {
+                Runtime.getRuntime().removeShutdownHook(handle);
+                ws.close();
+                debugger.close();
+            }
         }, "Debug Handler");
     }
 
@@ -164,7 +175,6 @@ public class DebugServer {
                     var req = HttpRequest.read(socket);
 
                     if (req == null) continue;
-    
                     switch (req.path) {
                         case "/json/version":
                             send(req, "{\"Browser\":\"" + browserDisplayName + "\",\"Protocol-Version\":\"1.1\"}");

src/java/me/topchetoeu/jscript/utils/debug/SimpleDebugger.java

@@ -30,6 +30,7 @@ import me.topchetoeu.jscript.runtime.EventLoop;
 import me.topchetoeu.jscript.runtime.Frame;
 import me.topchetoeu.jscript.runtime.debug.DebugContext;
 import me.topchetoeu.jscript.runtime.exceptions.EngineException;
+import me.topchetoeu.jscript.runtime.exceptions.SyntaxException;
 import me.topchetoeu.jscript.runtime.scope.GlobalScope;
 import me.topchetoeu.jscript.runtime.values.ArrayValue;
 import me.topchetoeu.jscript.runtime.values.FunctionValue;
@@ -41,7 +42,9 @@ import me.topchetoeu.jscript.runtime.values.Values;
 public class SimpleDebugger implements Debugger {
     public static final Set<String> VSCODE_EMPTY = Set.of(
         "function(...runtimeArgs){\n    let t = 1024; let e = null;\n    if(e)try{let r=\"<<default preview>>\",i=e.call(this,r);if(i!==r)return String(i)}catch(r){return`<<indescribable>>${JSON.stringify([String(r),\"object\"])}`}if(typeof this==\"object\"&&this){let r;for(let i of[Symbol.for(\"debug.description\"),Symbol.for(\"nodejs.util.inspect.custom\")])try{r=this[i]();break}catch{}if(!r&&!String(this.toString).includes(\"[native code]\")&&(r=String(this)),r&&!r.startsWith(\"[object \"))return r.length>=t?r.slice(0,t)+\"\\u2026\":r}\n  ;\n\n}",
+        "function(...runtimeArgs){\n    let r = 1024; let e = null;\n    if(e)try{let t=\"<<default preview>>\",n=e.call(this,t);if(n!==t)return String(n)}catch(t){return`<<indescribable>>${JSON.stringify([String(t),\"object\"])}`}if(typeof this==\"object\"&&this){let t;for(let n of[Symbol.for(\"debug.description\"),Symbol.for(\"nodejs.util.inspect.custom\")])if(typeof this[n]==\"function\")try{t=this[n]();break}catch{}if(!t&&!String(this.toString).includes(\"[native code]\")&&(t=String(this)),t&&!t.startsWith(\"[object\"))return t.length>=r?t.slice(0,r)+\"\\u2026\":t};}",
         "function(...runtimeArgs){\n    let t = 1024; let e = null;\n    let r={},i=\"<<default preview>>\";if(typeof this!=\"object\"||!this)return r;for(let[n,s]of Object.entries(this)){if(e)try{let o=e.call(s,i);if(o!==i){r[n]=String(o);continue}}catch(o){r[n]=`<<indescribable>>${JSON.stringify([String(o),n])}`;continue}if(typeof s==\"object\"&&s){let o;for(let a of runtimeArgs[0])try{o=s[a]();break}catch{}!o&&!String(s.toString).includes(\"[native code]\")&&(o=String(s)),o&&!o.startsWith(\"[object \")&&(r[n]=o.length>=t?o.slice(0,t)+\"\\u2026\":o)}}return r\n  ;\n\n}",
+        "function(...runtimeArgs){\n    let r = 1024; let e = null;\n    let t={},n=\"<<default preview>>\";if(typeof this!=\"object\"||!this)return t;for(let[i,o]of Object.entries(this)){if(e)try{let s=e.call(o,n);if(s!==n){t[i]=String(s);continue}}catch(s){t[i]=`<<indescribable>>${JSON.stringify([String(s),i])}`;continue}if(typeof o==\"object\"&&o){let s;for(let a of runtimeArgs[0])if(typeof o[a]==\"function\")try{s=o[a]();break}catch{}!s&&!String(o.toString).includes(\"[native code]\")&&(s=String(o)),s&&!s.startsWith(\"[object \")&&(t[i]=s.length>=r?s.slice(0,r)+\"\\u2026\":s)}}return t\n  ;\n\n}",
         "function(){let t={__proto__:this.__proto__\n},e=Object.getOwnPropertyNames(this);for(let r=0;r<e.length;++r){let i=e[r],n=i>>>0;if(String(n>>>0)===i&&n>>>0!==4294967295)continue;let s=Object.getOwnPropertyDescriptor(this,i);s&&Object.defineProperty(t,i,s)}return t}",
         "function(){return[Symbol.for(\"debug.description\"),Symbol.for(\"nodejs.util.inspect.custom\")]\n}"
     );
@@ -50,6 +53,7 @@ public class SimpleDebugger implements Debugger {
     );
 
     public static final String CHROME_GET_PROP_FUNC = "function s(e){let t=this;const n=JSON.parse(e);for(let e=0,i=n.length;e<i;++e)t=t[n[e]];return t}";
+    public static final String CHROME_GET_PROP_FUNC_2 = "function invokeGetter(getter) { return Reflect.apply(getter, this, []);}";
     public static final String VSCODE_CALL = "function(t){return t.call(this)\n}";
     public static final String VSCODE_AUTOCOMPLETE = "function(t,e,r){let n=r?\"variable\":\"property\",i=(l,p,f)=>{if(p!==\"function\")return n;if(l===\"constructor\")return\"class\";let m=String(f);return m.startsWith(\"class \")||m.includes(\"[native code]\")&&/^[A-Z]/.test(l)?\"class\":r?\"function\":\"method\"\n},o=l=>{switch(typeof l){case\"number\":case\"boolean\":return`${l}`;case\"object\":return l===null?\"null\":l.constructor.name||\"object\";case\"function\":return`fn(${new Array(l.length).fill(\"?\").join(\", \")})`;default:return typeof l}},s=[],a=new Set,u=\"~\",c=t===void 0?this:t;for(;c!=null;c=c.__proto__){u+=\"~\";let l=Object.getOwnPropertyNames(c).filter(p=>p.startsWith(e)&&!p.match(/^\\d+$/));for(let p of l){if(a.has(p))continue;a.add(p);let f=Object.getOwnPropertyDescriptor(c,p),m=n,h;try{let H=c[p];m=i(p,typeof f?.value,H),h=o(H)}catch{}s.push({label:p,sortText:u+p.replace(/^_+/,H=>\"{\".repeat(H.length)),type:m,detail:h})}r=!1}return{result:s,isArray:this instanceof Array}}";
 
@@ -83,7 +87,9 @@ public class SimpleDebugger implements Debugger {
         public final String condition;
         public final Pattern pattern;
         public final int line, start;
-        public final WeakHashMap<FunctionBody, Set<Location>> resolvedLocations = new WeakHashMap<>();
+        public final long locNum;
+        public final HashMap<Filename, Location> resolvedLocations = new HashMap<>();
+        public final HashMap<Filename, Long> resolvedDistances = new HashMap<>();
 
         public Breakpoint(int id, Pattern pattern, int line, int start, String condition) {
             this.id = id;
@@ -91,18 +97,28 @@ public class SimpleDebugger implements Debugger {
             this.pattern = pattern;
             this.line = line;
             this.start = start;
+            this.locNum = start | ((long)line << 32);
 
             if (condition != null && condition.trim().equals("")) condition = null;
         }
 
         // TODO: Figure out how to unload a breakpoint
+        // TODO: Do location resolution with function boundaries
         public void addFunc(FunctionBody body, FunctionMap map) {
             try {
                 for (var loc : map.correctBreakpoint(pattern, line, start)) {
-                    if (!resolvedLocations.containsKey(body)) resolvedLocations.put(body, new HashSet<>());
-                    var set = resolvedLocations.get(body);
-                    set.add(loc);
+                    var currNum = loc.start() + ((long)loc.line() << 32);
+                    long currDist = 0;
+                    if (currNum > locNum) currDist = currNum - locNum;
+                    else currDist = locNum - currNum;
 
+                    if ( currDist > resolvedDistances.getOrDefault(loc.filename(), Long.MAX_VALUE)) continue;
+
+                    resolvedLocations.put(loc.filename(), loc);
+                    resolvedDistances.put(loc.filename(), currDist);
+                }
+
+                for (var loc : resolvedLocations.values()) {
                     ws.send(new V8Event("Debugger.breakpointResolved", new JSONMap()
                         .set("breakpointId", id)
                         .set("location", serializeLocation(loc))
@@ -146,29 +162,29 @@ public class SimpleDebugger implements Debugger {
                     .add(new JSONMap()
                         .set("type", "local")
                         .set("name", "Local Scope")
-                        .set("object", serializeObj(frame.ctx, local))
+                        .set("object", serializeObj(frame.ctx.environment, local))
                     )
                     .add(new JSONMap()
                         .set("type", "closure")
                         .set("name", "Closure")
-                        .set("object", serializeObj(frame.ctx, capture))
+                        .set("object", serializeObj(frame.ctx.environment, capture))
                     )
                     .add(new JSONMap()
                         .set("type", "global")
                         .set("name", "Global Scope")
-                        .set("object", serializeObj(frame.ctx, global))
+                        .set("object", serializeObj(frame.ctx.environment, global))
                     )
                     .add(new JSONMap()
                         .set("type", "other")
                         .set("name", "Value Stack")
-                        .set("object", serializeObj(frame.ctx, valstack))
+                        .set("object", serializeObj(frame.ctx.environment, valstack))
                     )
                 );
         }
     }
     private class ObjRef {
         public final ObjectValue obj;
-        public final Context ctx;
+        public final Environment env;
         public final HashSet<String> heldGroups = new HashSet<>();
         public boolean held = true;
 
@@ -176,19 +192,19 @@ public class SimpleDebugger implements Debugger {
             return !held && heldGroups.size() == 0;
         }
 
-        public ObjRef(Context ctx, ObjectValue obj) {
-            this.ctx = ctx;
+        public ObjRef(Environment env, ObjectValue obj) {
+            this.env = env;
             this.obj = obj;
         }
     }
 
     private static class RunResult {
-        public final Context ctx;
+        public final Environment ctx;
         public final Object result;
         public final EngineException error;
 
-        public RunResult(Context ctx, Object result, EngineException error) {
-            this.ctx = ctx;
+        public RunResult(Environment env, Object result, EngineException error) {
+            this.ctx = env;
             this.result = result;
             this.error = error;
         }
@@ -202,8 +218,9 @@ public class SimpleDebugger implements Debugger {
 
     private ObjectValue emptyObject = new ObjectValue();
 
+    private WeakHashMap<DebugContext, DebugContext> contexts = new WeakHashMap<>();
     private WeakHashMap<FunctionBody, FunctionMap> mappings = new WeakHashMap<>();
-    private WeakHashMap<FunctionBody, HashMap<Location, Breakpoint>> bpLocs = new WeakHashMap<>();
+    private HashMap<Location, HashSet<Breakpoint>> bpLocs = new HashMap<>();
 
     private HashMap<Integer, Breakpoint> idToBreakpoint = new HashMap<>();
 
@@ -226,6 +243,8 @@ public class SimpleDebugger implements Debugger {
     private int stepOutPtr = 0;
 
     private boolean compare(String src, String target) {
+        src = src.replaceAll("\\s", "");
+        target = target.replaceAll("\\s", "");
         if (src.length() != target.length()) return false;
         var diff = 0;
         var all = 0;
@@ -291,13 +310,11 @@ public class SimpleDebugger implements Debugger {
         bpLocs.clear();
 
         for (var bp : idToBreakpoint.values()) {
-            for (var el : bp.resolvedLocations.entrySet()) {
-                if (!bpLocs.containsKey(el.getKey())) bpLocs.put(el.getKey(), new HashMap<>());
-                var map = bpLocs.get(el.getKey());
+            for (var loc : bp.resolvedLocations.values()) {
+                bpLocs.putIfAbsent(loc, new HashSet<>());
+                var set = bpLocs.get(loc);
 
-                for (var loc : el.getValue()) {
-                    map.put(loc, bp);
-                }
+                set.add(bp);
             }
         }
     }
@@ -321,22 +338,10 @@ public class SimpleDebugger implements Debugger {
             .set("columnNumber", loc.start() - 1);
     }
 
-    private Integer objectId(Context ctx, ObjectValue obj) {
-        if (objectToId.containsKey(obj)) return objectToId.get(obj);
-        else {
-            int id = nextId();
-            var ref = new ObjRef(ctx, obj);
-            objectToId.put(obj, id);
-            idToObject.put(id, ref);
-            return id;
-        }
-    }
-    private JSONMap serializeObj(Context ctx, Object val, boolean byValue) {
+    private JSONMap serializeObj(Environment env, Object val, boolean byValue) {
         val = Values.normalize(null, val);
-        var newCtx = new Context();
-        newCtx.addAll(ctx);
-        newCtx.add(DebugContext.IGNORE);
-        ctx = newCtx;
+        env = sanitizeEnvironment(env);
+        var ctx = env.context();
 
         if (val == Values.NULL) {
             return new JSONMap()
@@ -348,7 +353,16 @@ public class SimpleDebugger implements Debugger {
 
         if (val instanceof ObjectValue) {
             var obj = (ObjectValue)val;
-            var id = objectId(ctx, obj);
+            int id;
+
+            if (objectToId.containsKey(obj)) id = objectToId.get(obj);
+            else {
+                id = nextId();
+                var ref = new ObjRef(env, obj);
+                objectToId.put(obj, id);
+                idToObject.put(id, ref);
+            }
+
             var type = "object";
             String subtype = null;
             String className = null;
@@ -366,6 +380,7 @@ public class SimpleDebugger implements Debugger {
             if (subtype != null) res.set("subtype", subtype);
             if (className != null) {
                 res.set("className", className);
+                res.set("description", className);
             }
 
             if (obj instanceof ArrayValue) res.set("description", "Array(" + ((ArrayValue)obj).size() + ")");
@@ -376,16 +391,16 @@ public class SimpleDebugger implements Debugger {
                 try {
                     defaultToString =
                         Values.getMember(ctx, obj, "toString") ==
-                        Values.getMember(ctx, ctx.get(Environment.OBJECT_PROTO), "toString");
+                        Values.getMember(ctx, env.get(Environment.OBJECT_PROTO), "toString");
                 }
                 catch (Exception e) { }
 
                 try { res.set("description", className + (defaultToString ? "" : " { " + Values.toString(ctx, obj) + " }")); }
-                catch (EngineException e) { res.set("description", className); }
+                catch (EngineException e) {  }
             }
 
 
-            if (byValue) try { res.put("value", JSON.fromJs(ctx, obj)); }
+            if (byValue) try { res.put("value", JSON.fromJs(env.context(), obj)); }
             catch (Exception e) { }
 
             return res;
@@ -411,8 +426,8 @@ public class SimpleDebugger implements Debugger {
 
         throw new IllegalArgumentException("Unexpected JS object.");
     }
-    private JSONMap serializeObj(Context ctx, Object val) {
-        return serializeObj(ctx, val, false);
+    private JSONMap serializeObj(Environment env, Object val) {
+        return serializeObj(env, val, false);
     }
     private void addObjectGroup(String name, Object val) {
         if (val instanceof ObjectValue) {
@@ -451,11 +466,11 @@ public class SimpleDebugger implements Debugger {
         else return JSON.toJs(res);
     }
 
-    private JSONMap serializeException(Context ctx, EngineException err) {
+    private JSONMap serializeException(Environment env, EngineException err) {
         String text = null;
 
         try {
-            text = Values.toString(ctx, err.value);
+            text = Values.toString(env.context(), err.value);
         }
         catch (EngineException e) {
             text = "[error while stringifying]";
@@ -463,7 +478,7 @@ public class SimpleDebugger implements Debugger {
 
         var res = new JSONMap()
             .set("exceptionId", nextId())
-            .set("exception", serializeObj(ctx, err.value))
+            .set("exception", serializeObj(env, err.value))
             .set("text", text);
 
         return res;
@@ -524,30 +539,42 @@ public class SimpleDebugger implements Debugger {
         }
     }
 
+    private Environment sanitizeEnvironment(Environment env) {
+        var res = env.child();
+
+        res.remove(EventLoop.KEY);
+        res.remove(DebugContext.KEY);
+        res.add(DebugContext.IGNORE);
+
+        return res;
+    }
+
     private RunResult run(DebugFrame codeFrame, String code) {
         if (codeFrame == null) return new RunResult(null, code, new EngineException("Invalid code frame!"));
         var engine = new Engine();
-        var env = codeFrame.frame.function.environment.copy();
+        var env = codeFrame.frame.ctx.environment.copy();
 
         env.global = new GlobalScope(codeFrame.local);
         env.remove(EventLoop.KEY);
         env.remove(DebugContext.KEY);
         env.add(EventLoop.KEY, engine);
 
-        var ctx = new Context(env);
-        var awaiter = engine.pushMsg(false, ctx.environment, new Filename("jscript", "eval"), code, codeFrame.frame.thisArg, codeFrame.frame.args);
+        var awaiter = engine.pushMsg(false, env, new Filename("jscript", "eval"), code, codeFrame.frame.thisArg, codeFrame.frame.args);
 
-        engine.run(true);
-
-        try { return new RunResult(ctx, awaiter.await(), null); }
-        catch (EngineException e) { return new RunResult(ctx, null, e); }
+        try {
+            engine.run(true);
+            return new RunResult(env, awaiter.await(), null);
+        }
+        catch (EngineException e) { return new RunResult(env, null, e); }
+        catch (SyntaxException e) { return new RunResult(env, null, EngineException.ofSyntax(e.toString())); }
     }
 
-    private ObjectValue vscodeAutoSuggest(Context ctx, Object target, String query, boolean variable) {
+    private ObjectValue vscodeAutoSuggest(Environment env, Object target, String query, boolean variable) {
         var res = new ArrayValue();
         var passed = new HashSet<String>();
         var tildas = "~";
-        if (target == null) target = ctx.environment.global;
+        var ctx = env.context();
+        if (target == null) target = env.global;
 
         for (var proto = target; proto != null && proto != Values.NULL; proto = Values.getPrototype(ctx, proto)) {
             for (var el : Values.getMembers(ctx, proto, true, true)) {
@@ -602,7 +629,7 @@ public class SimpleDebugger implements Debugger {
                         desc.defineProperty(ctx, "type", Values.type(val));
                         break;
                 }
-            
+
                 res.set(ctx, res.size(), desc);
             }
 
@@ -630,15 +657,18 @@ public class SimpleDebugger implements Debugger {
         ws.send(msg.respond());
     }
     @Override public synchronized void close() {
+        if (state != State.RESUMED) {
+            resume(State.RESUMED);
+        }
+
         enabled = false;
         execptionType = CatchType.NONE;
         state = State.RESUMED;
 
-        // idToBptCand.clear();
+        mappings.clear();
+        bpLocs.clear();
 
         idToBreakpoint.clear();
-        // locToBreakpoint.clear();
-        // tmpBreakpts.clear();
 
         filenameToId.clear();
         idToSource.clear();
@@ -656,6 +686,9 @@ public class SimpleDebugger implements Debugger {
         stepOutFrame = currFrame = null;
         stepOutPtr = 0;
 
+        for (var ctx : contexts.keySet()) ctx.detachDebugger(this);
+        contexts.clear();
+
         updateNotifier.next();
     }
 
@@ -709,16 +742,15 @@ public class SimpleDebugger implements Debugger {
         var bpt = new Breakpoint(nextId(), regex, line, col, cond);
         idToBreakpoint.put(bpt.id, bpt);
 
-        var locs = new JSONList();
 
         for (var el : mappings.entrySet()) {
             bpt.addFunc(el.getKey(), el.getValue());
         }
 
-        for (var el : bpt.resolvedLocations.values()) {
-            for (var loc : el) {
-                locs.add(serializeLocation(loc));
-            }
+        var locs = new JSONList();
+
+        for (var loc : bpt.resolvedLocations.values()) {
+            locs.add(serializeLocation(loc));
         }
 
         ws.send(msg.respond(new JSONMap()
@@ -730,6 +762,7 @@ public class SimpleDebugger implements Debugger {
         var id = Integer.parseInt(msg.params.string("breakpointId"));
 
         idToBreakpoint.remove(id);
+        updateBreakpoints();
         ws.send(msg.respond());
     }
     @Override public synchronized void continueToLocation(V8Message msg) throws IOException {
@@ -818,46 +851,54 @@ public class SimpleDebugger implements Debugger {
     @Override public synchronized void getProperties(V8Message msg) throws IOException {
         var ref = idToObject.get(Integer.parseInt(msg.params.string("objectId")));
         var obj = ref.obj;
-
+        var env = ref.env;
+        var ctx = env.context();
         var res = new JSONList();
-        var ctx = ref.ctx;
+        var own = true;
 
         if (obj != emptyObject && obj != null) {
-            for (var key : obj.keys(true)) {
-                var propDesc = new JSONMap();
+            while (obj != null) {
+                for (var key : obj.keys(true)) {
+                    var propDesc = new JSONMap();
 
-                if (obj.properties.containsKey(key)) {
-                    var prop = obj.properties.get(key);
+                    if (obj.properties.containsKey(key)) {
+                        var prop = obj.properties.get(key);
 
-                    propDesc.set("name", Values.toString(ctx, key));
-                    if (prop.getter != null) propDesc.set("get", serializeObj(ctx, prop.getter));
-                    if (prop.setter != null) propDesc.set("set", serializeObj(ctx, prop.setter));
-                    propDesc.set("enumerable", obj.memberEnumerable(key));
-                    propDesc.set("configurable", obj.memberConfigurable(key));
-                    propDesc.set("isOwn", true);
-                    res.add(propDesc);
+                        propDesc.set("name", Values.toString(ctx, key));
+                        if (prop.getter != null) propDesc.set("get", serializeObj(env, prop.getter));
+                        if (prop.setter != null) propDesc.set("set", serializeObj(env, prop.setter));
+                        propDesc.set("enumerable", obj.memberEnumerable(key));
+                        propDesc.set("configurable", obj.memberConfigurable(key));
+                        propDesc.set("isOwn", true);
+                        res.add(propDesc);
+                    }
+                    else {
+                        propDesc.set("name", Values.toString(ctx, key));
+                        propDesc.set("value", serializeObj(env, Values.getMember(ctx, obj, key)));
+                        propDesc.set("writable", obj.memberWritable(key));
+                        propDesc.set("enumerable", obj.memberEnumerable(key));
+                        propDesc.set("configurable", obj.memberConfigurable(key));
+                        propDesc.set("isOwn", own);
+                        res.add(propDesc);
+                    }
                 }
-                else {
-                    propDesc.set("name", Values.toString(ctx, key));
-                    propDesc.set("value", serializeObj(ctx, Values.getMember(ctx, obj, key)));
-                    propDesc.set("writable", obj.memberWritable(key));
-                    propDesc.set("enumerable", obj.memberEnumerable(key));
-                    propDesc.set("configurable", obj.memberConfigurable(key));
-                    propDesc.set("isOwn", true);
-                    res.add(propDesc);
+
+                var proto = Values.getPrototype(ctx, obj);
+
+                if (own) {
+                    var protoDesc = new JSONMap();
+                    protoDesc.set("name", "__proto__");
+                    protoDesc.set("value", serializeObj(env, proto == null ? Values.NULL : proto));
+                    protoDesc.set("writable", true);
+                    protoDesc.set("enumerable", false);
+                    protoDesc.set("configurable", false);
+                    protoDesc.set("isOwn", own);
+                    res.add(protoDesc);
                 }
+
+                obj = proto;
+                own = false;
             }
-    
-            var proto = Values.getPrototype(ctx, obj);
-    
-            var protoDesc = new JSONMap();
-            protoDesc.set("name", "__proto__");
-            protoDesc.set("value", serializeObj(ctx, proto == null ? Values.NULL : proto));
-            protoDesc.set("writable", true);
-            protoDesc.set("enumerable", false);
-            protoDesc.set("configurable", false);
-            protoDesc.set("isOwn", true);
-            res.add(protoDesc);
         }
 
         ws.send(msg.respond(new JSONMap().set("result", res)));
@@ -874,7 +915,8 @@ public class SimpleDebugger implements Debugger {
 
         var thisArgRef = idToObject.get(Integer.parseInt(msg.params.string("objectId")));
         var thisArg = thisArgRef.obj;
-        var ctx = thisArgRef.ctx;
+        var env = thisArgRef.env;
+        var ctx = env.context();
 
         while (true) {
             var start = src.lastIndexOf("//# sourceURL=");
@@ -892,22 +934,25 @@ public class SimpleDebugger implements Debugger {
                 res = thisArg;
                 for (var el : JSON.parse(null, (String)args.get(0)).list()) res = Values.getMember(ctx, res, JSON.toJs(el));
             }
+            else if (compare(src, CHROME_GET_PROP_FUNC_2)) {
+                res = Values.call(ctx, args.get(0), thisArg);
+            }
             else if (compare(src, VSCODE_CALL)) {
                 var func = (FunctionValue)(args.size() < 1 ? null : args.get(0));
-                ws.send(msg.respond(new JSONMap().set("result", serializeObj(ctx, func.call(ctx, thisArg)))));
+                ws.send(msg.respond(new JSONMap().set("result", serializeObj(env, func.call(ctx, thisArg)))));
             }
             else if (compare(src, VSCODE_AUTOCOMPLETE)) {
                 var target = args.get(0);
                 if (target == null) target = thisArg;
-                res = vscodeAutoSuggest(ctx, target, Values.toString(ctx, args.get(1)), Values.toBoolean(args.get(2)));
+                res = vscodeAutoSuggest(env, target, Values.toString(ctx, args.get(1)), Values.toBoolean(args.get(2)));
             }
             else {
                 ws.send(new V8Error("Please use well-known functions with callFunctionOn"));
                 return;
             }
-            ws.send(msg.respond(new JSONMap().set("result", serializeObj(ctx, res, byValue))));
+            ws.send(msg.respond(new JSONMap().set("result", serializeObj(env, res, byValue))));
         }
-        catch (EngineException e) { ws.send(msg.respond(new JSONMap().set("exceptionDetails", serializeException(ctx, e)))); }
+        catch (EngineException e) { ws.send(msg.respond(new JSONMap().set("exceptionDetails", serializeException(env, e)))); }
     }
 
     @Override public synchronized void runtimeEnable(V8Message msg) throws IOException {
@@ -958,10 +1003,11 @@ public class SimpleDebugger implements Debugger {
             ) {
                 pauseDebug(ctx, null);
             }
-            else if (isBreakpointable && bpLocs.getOrDefault(cf.function.body, new HashMap<>()).containsKey(loc)) {
-                var bp = bpLocs.get(cf.function.body).get(loc);
-                var ok = bp.condition == null ? true : Values.toBoolean(run(currFrame, bp.condition).result);
-                if (ok) pauseDebug(ctx, bp);
+            else if (isBreakpointable && bpLocs.containsKey(loc)) {
+                for (var bp : bpLocs.get(loc)) {
+                    var ok = bp.condition == null ? true : Values.toBoolean(run(currFrame, bp.condition).result);
+                    if (ok) pauseDebug(ctx, bp);
+                }
             }
             // else if (isBreakpointable && tmpBreakpts.remove(loc)) pauseDebug(ctx, null);
             else if (isBreakpointable && pendingPause) {
@@ -1033,6 +1079,7 @@ public class SimpleDebugger implements Debugger {
 
     public SimpleDebugger attach(DebugContext ctx) {
         ctx.attachDebugger(this);
+        contexts.put(ctx, ctx);
         return this;
     }
 

src/java/me/topchetoeu/jscript/utils/interop/ExposeType.java

@@ -1,7 +1,6 @@
 package me.topchetoeu.jscript.utils.interop;
 
 public enum ExposeType {
-    INIT,
     METHOD,
     GETTER,
     SETTER,

src/java/me/topchetoeu/jscript/utils/interop/NativeWrapperProvider.java

@@ -25,7 +25,8 @@ public class NativeWrapperProvider implements WrapperProvider {
     private final HashMap<Class<?>, FunctionValue> constructors = new HashMap<>();
     private final HashMap<Class<?>, ObjectValue> prototypes = new HashMap<>();
     private final HashMap<Class<?>, ObjectValue> namespaces = new HashMap<>();
-    private final Environment env;
+    private final HashMap<Class<?>, Class<?>> proxies = new HashMap<>();
+    private final HashSet<Class<?>> ignore = new HashSet<>();
 
     private static Object call(Context ctx, String name, Method method, Object thisArg, Object... args) {
         try {
@@ -106,11 +107,12 @@ public class NativeWrapperProvider implements WrapperProvider {
         else return name;
     }
 
-    private static void apply(ObjectValue obj, Environment env, ExposeTarget target, Class<?> clazz) {
+    private static boolean apply(ObjectValue obj, ExposeTarget target, Class<?> clazz) {
         var getters = new HashMap<Object, FunctionValue>();
         var setters = new HashMap<Object, FunctionValue>();
         var props = new HashSet<Object>();
         var nonProps = new HashSet<Object>();
+        var any = false;
 
         for (var method : clazz.getDeclaredMethods()) {
             for (var annotation : method.getAnnotationsByType(Expose.class)) {
@@ -120,15 +122,9 @@ public class NativeWrapperProvider implements WrapperProvider {
                 var name = getName(method, annotation.value());
                 var key = getKey(name);
                 var repeat = false;
+                any = true;
 
                 switch (annotation.type()) {
-                    case INIT:
-                        checkSignature(method, true,
-                            target == ExposeTarget.CONSTRUCTOR ? FunctionValue.class : ObjectValue.class,
-                            Environment.class
-                        );
-                        call(null, null, method, obj, null, env);
-                        break;
                     case METHOD:
                         if (props.contains(key) || nonProps.contains(key)) repeat = true;
                         else {
@@ -168,11 +164,17 @@ public class NativeWrapperProvider implements WrapperProvider {
                 var name = getName(method, annotation.value());
                 var key = getKey(name);
                 var repeat = false;
+                any = true;
 
                 if (props.contains(key) || nonProps.contains(key)) repeat = true;
                 else {
-                    checkSignature(method, true, Environment.class);
-                    obj.defineProperty(null, key, call(new Context(env), name, method, null, env), true, true, false);
+                    checkSignature(method, true);
+                    try {
+                        obj.defineProperty(null, key, method.invoke(null), true, true, false);
+                    }
+                    catch (IllegalAccessException | IllegalArgumentException | InvocationTargetException e) {
+                        throw new RuntimeException(e);
+                    }
                     nonProps.add(key);
                 }
 
@@ -191,11 +193,29 @@ public class NativeWrapperProvider implements WrapperProvider {
                 var name = getName(field, annotation.value());
                 var key = getKey(name);
                 var repeat = false;
+                any = true;
 
                 if (props.contains(key) || nonProps.contains(key)) repeat = true;
                 else {
                     try {
-                        obj.defineProperty(null, key, Values.normalize(new Context(env), field.get(null)), true, true, false);
+                        if (Modifier.isStatic(field.getModifiers())) {
+                            obj.defineProperty(null, key, Values.normalize(null, field.get(null)), true, true, false);
+                        }
+                        else {
+                            obj.defineProperty(
+                                null, key,
+                                new NativeFunction("get " + key, args -> {
+                                    try { return field.get(args.self(clazz)); }
+                                    catch (IllegalAccessException e) { e.printStackTrace(); return null; }
+                                }),
+                                Modifier.isFinal(field.getModifiers()) ? null : new NativeFunction("get " + key, args -> {
+                                    try { field.set(args.self(clazz), args.convert(0, field.getType())); }
+                                    catch (IllegalAccessException e) { e.printStackTrace(); }
+                                    return null;
+                                }),
+                                true, false
+                            );
+                        }
                         nonProps.add(key);
                     }
                     catch (IllegalArgumentException | IllegalAccessException e) { }
@@ -210,9 +230,11 @@ public class NativeWrapperProvider implements WrapperProvider {
         }
 
         for (var key : props) obj.defineProperty(null, key, getters.get(key), setters.get(key), true, false);
+
+        return any;
     }
 
-    private static Method getConstructor(Environment env, Class<?> clazz) {
+    private static Method getConstructor(Class<?> clazz) {
         for (var method : clazz.getDeclaredMethods()) {
             if (!method.isAnnotationPresent(ExposeConstructor.class)) continue;
             checkSignature(method, true, Arguments.class);
@@ -228,10 +250,10 @@ public class NativeWrapperProvider implements WrapperProvider {
      * All accessors and methods will expect the this argument to be a native wrapper of the given class type.
      * @param clazz The class for which a prototype should be generated
      */
-    public static ObjectValue makeProto(Environment env, Class<?> clazz) {
+    public static ObjectValue makeProto(Class<?> clazz) {
         var res = new ObjectValue();
         res.defineProperty(null, Symbol.get("Symbol.typeName"), getName(clazz));
-        apply(res, env, ExposeTarget.PROTOTYPE, clazz);
+        if (!apply(res, ExposeTarget.PROTOTYPE, clazz)) return null;
         return res;
     }
     /**
@@ -240,14 +262,14 @@ public class NativeWrapperProvider implements WrapperProvider {
      * When the function gets called, the underlying constructor will get called, unless the constructor is inaccessible.
      * @param clazz The class for which a constructor should be generated
      */
-    public static FunctionValue makeConstructor(Environment ctx, Class<?> clazz) {
-        var constr = getConstructor(ctx, clazz);
+    public static FunctionValue makeConstructor(Class<?> clazz) {
+        var constr = getConstructor(clazz);
 
         FunctionValue res = constr == null ?
             new NativeFunction(getName(clazz), args -> { throw EngineException.ofError("This constructor is not invokable."); }) :
             create(getName(clazz), constr);
 
-        apply(res, ctx, ExposeTarget.CONSTRUCTOR, clazz);
+        apply(res, ExposeTarget.CONSTRUCTOR, clazz);
 
         return res;
     }
@@ -257,15 +279,34 @@ public class NativeWrapperProvider implements WrapperProvider {
      * This method behaves almost like {@link NativeWrapperProvider#makeConstructor}, but will return an object instead.
      * @param clazz The class for which a constructor should be generated
      */
-    public static ObjectValue makeNamespace(Environment ctx, Class<?> clazz) {
+    public static ObjectValue makeNamespace(Class<?> clazz) {
         var res = new ObjectValue();
         res.defineProperty(null, Symbol.get("Symbol.typeName"), getName(clazz));
-        apply(res, ctx, ExposeTarget.NAMESPACE, clazz);
+        if (!apply(res, ExposeTarget.NAMESPACE, clazz)) return null;
         return res;
     }
 
+    private void updateProtoChain(Class<?> clazz, ObjectValue proto, FunctionValue constr) {
+        var parent = clazz;
+
+        while (true) {
+            parent = parent.getSuperclass();
+            if (parent == null) break;
+
+            var parentProto = getProto(parent);
+            var parentConstr = getConstr(parent);
+
+            if (parentProto != null && parentConstr != null) {
+                Values.setPrototype(Context.NULL, proto, parentProto);
+                Values.setPrototype(Context.NULL, constr, parentConstr);
+
+                return;
+            }
+        }
+    }
+
     private void initType(Class<?> clazz, FunctionValue constr, ObjectValue proto) {
-        if (constr != null && proto != null) return;
+        if (constr != null && proto != null || ignore.contains(clazz)) return;
         // i vomit
         if (
             clazz == Object.class ||
@@ -281,8 +322,10 @@ public class NativeWrapperProvider implements WrapperProvider {
             clazz.isSynthetic()
         ) return;
 
-        if (constr == null) constr = makeConstructor(env, clazz);
-        if (proto == null) proto = makeProto(env, clazz);
+        if (constr == null) constr = makeConstructor(clazz);
+        if (proto == null) proto = makeProto(clazz);
+
+        if (constr == null || proto == null) return;
 
         proto.defineProperty(null, "constructor", constr, true, false, false);
         constr.defineProperty(null, "prototype", proto, true, false, false);
@@ -290,59 +333,66 @@ public class NativeWrapperProvider implements WrapperProvider {
         prototypes.put(clazz, proto);
         constructors.put(clazz, constr);
 
-        var parent = clazz.getSuperclass();
-        if (parent == null) return;
-
-        var parentProto = getProto(parent);
-        var parentConstr = getConstr(parent);
-
-        if (parentProto != null) Values.setPrototype(Context.NULL, proto, parentProto);
-        if (parentConstr != null) Values.setPrototype(Context.NULL, constr, parentConstr);
+        updateProtoChain(clazz, proto, constr);
     }
 
     public ObjectValue getProto(Class<?> clazz) {
         initType(clazz, constructors.get(clazz), prototypes.get(clazz));
-        return prototypes.get(clazz);
+        while (clazz != null) {
+            var res = prototypes.get(clazz);
+            if (res != null) return res;
+            clazz = clazz.getSuperclass();
+        }
+        return null;
     }
     public ObjectValue getNamespace(Class<?> clazz) {
-        if (!namespaces.containsKey(clazz)) namespaces.put(clazz, makeNamespace(env, clazz));
-        return namespaces.get(clazz);
+        if (!namespaces.containsKey(clazz)) namespaces.put(clazz, makeNamespace(clazz));
+        while (clazz != null) {
+            var res = namespaces.get(clazz);
+            if (res != null) return res;
+            clazz = clazz.getSuperclass();
+        }
+        return null;
     }
     public FunctionValue getConstr(Class<?> clazz) {
         initType(clazz, constructors.get(clazz), prototypes.get(clazz));
-        return constructors.get(clazz);
+        while (clazz != null) {
+            var res = constructors.get(clazz);
+            if (res != null) return res;
+            clazz = clazz.getSuperclass();
+        }
+        return null;
     }
 
     @Override public WrapperProvider fork(Environment env) {
-        return new NativeWrapperProvider(env);
+        var res = new NativeWrapperProvider();
+        for (var pair : proxies.entrySet()) {
+            res.set(pair.getKey(), pair.getValue());
+        }
+        return this;
     }
 
-    public void setProto(Class<?> clazz, ObjectValue value) {
-        prototypes.put(clazz, value);
-    }
-    public void setConstr(Class<?> clazz, FunctionValue value) {
-        constructors.put(clazz, value);
-    }
+    public void set(Class<?> clazz, Class<?> wrapper) {
+        if (clazz == null) return;
+        if (wrapper == null) wrapper = clazz;
 
-    private void initError() {
-        var proto = new ObjectValue();
-        proto.defineProperty(null, "message", new NativeFunction("message", args -> {
-            if (args.self instanceof Throwable) return ((Throwable)args.self).getMessage();
-            else return null;
-        }));
-        proto.defineProperty(null, "name", new NativeFunction("name", args -> getName(args.self.getClass())));
-        proto.defineProperty(null, "toString", new NativeFunction("toString", args -> args.self.toString()));
+        ignore.remove(clazz);
+
+        var proto = makeProto(wrapper);
+        var constr = makeConstructor(wrapper);
+
+        prototypes.put(clazz, proto);
+        constructors.put(clazz, constr);
 
-        var constr = makeConstructor(null, Throwable.class);
         proto.defineProperty(null, "constructor", constr, true, false, false);
         constr.defineProperty(null, "prototype", proto, true, false, false);
 
-        setProto(Throwable.class, proto);
-        setConstr(Throwable.class, constr);
+        for (var el : prototypes.keySet()) {
+            if (clazz.isAssignableFrom(el)) {
+                updateProtoChain(el, getProto(el), getConstr(el));
+            }
+        }
     }
 
-    public NativeWrapperProvider(Environment env) {
-        this.env = env;
-        initError();
-    }
+    public NativeWrapperProvider() { }
 }