Esempio n. 1
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  @Override
  public Object call(ExecutionContext context) {
    Object self = context.getThisBinding();

    Arguments argsObj = (Arguments) context.resolve("arguments").getValue(context);
    int numArgs = (int) argsObj.get(context, "length");
    int paramsLen = getFormalParameters().length;

    Object[] args = new Object[numArgs < paramsLen ? paramsLen : numArgs];

    for (int i = 0; i < numArgs; ++i) {
      Object v = argsObj.get(context, "" + i);
      if (v instanceof Reference) {
        if (((Reference) v).isUnresolvableReference()) {
          v = Types.UNDEFINED;
        } else {
          v = ((Reference) v).getValue(context);
        }
      }
      args[i] = v;
    }

    for (int i = numArgs; i < paramsLen; ++i) {
      args[i] = Types.UNDEFINED;
    }

    return call(context, self, args);
  }
Esempio n. 2
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  public ExecutionContext createFunctionExecutionContext(
      Object functionReference, JSFunction function, Object thisArg, Object... arguments) {
    // 10.4.3
    Object thisBinding = null;
    if (function.isStrict()) {
      thisBinding = thisArg;
    } else {
      if (thisArg == null || thisArg == Types.NULL || thisArg == Types.UNDEFINED) {
        thisBinding = this.getLexicalEnvironment().getGlobalObject();
      } else if (!(thisArg instanceof JSObject)) {
        // thisBinding = Types.toObject(this, thisArg);
        thisBinding = Types.toThisObject(this, thisArg);
      } else {
        thisBinding = thisArg;
      }
    }

    LexicalEnvironment scope = function.getScope();
    LexicalEnvironment localEnv = LexicalEnvironment.newDeclarativeEnvironment(scope);

    ExecutionContext context =
        new ExecutionContext(this, localEnv, localEnv, thisBinding, function.isStrict());
    context.performDeclarationBindingInstantiation(function, arguments);
    context.fileName = function.getFileName();
    // System.err.println( "debug null: " + ( function.getDebugContext() == null ? function : "not
    // null") );
    context.debugContext = function.getDebugContext();
    context.functionReference = functionReference;
    return context;
  }
Esempio n. 3
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  public ExecutionContext createEvalExecutionContext(JSProgram eval, boolean direct) {
    // 10.4.2 (with caller)
    ExecutionContext context = null;

    Object evalThisBinding = null;
    LexicalEnvironment evalLexEnv = null;
    LexicalEnvironment evalVarEnv = null;

    if (!direct) {
      evalThisBinding = getGlobalObject();
      evalLexEnv = LexicalEnvironment.newGlobalEnvironment(getGlobalObject());
      evalVarEnv = LexicalEnvironment.newGlobalEnvironment(getGlobalObject());
    } else {
      evalThisBinding = this.thisBinding;
      evalLexEnv = this.getLexicalEnvironment();
      evalVarEnv = this.getVariableEnvironment();
    }

    if (eval.isStrict()) {
      LexicalEnvironment strictVarEnv =
          LexicalEnvironment.newDeclarativeEnvironment(this.getLexicalEnvironment());
      evalLexEnv = strictVarEnv;
      evalVarEnv = strictVarEnv;
    }

    context = new ExecutionContext(this, evalLexEnv, evalVarEnv, evalThisBinding, eval.isStrict());
    context.performFunctionDeclarationBindings(eval, true);
    context.performVariableDeclarationBindings(eval, true);
    context.fileName = eval.getFileName();
    return context;
  }
Esempio n. 4
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  public FunctionDescriptor parseFunction(ExecutionContext context, String code)
      throws RecognitionException {
    final ANTLRStringStream stream = new ANTLRStringStream(code);
    ES3Lexer lexer = new ES3Lexer(stream);

    CommonTokenStream lexerStream = new CommonTokenStream(lexer);
    ES3Parser parser = new ES3Parser(lexerStream);

    ES3Parser.functionExpression_return function = parser.functionExpression();
    List<String> errors = parser.getErrors();
    if (!errors.isEmpty()) {
      throw new ThrowException(context, context.createSyntaxError(errors.get(0)));
    }

    CommonTree tree = (CommonTree) function.getTree();
    CommonTreeNodeStream treeNodeStream = new CommonTreeNodeStream(tree);
    treeNodeStream.setTokenStream(lexerStream);
    ES3Walker walker = new ES3Walker(treeNodeStream);

    Executor executor = new Executor();
    executor.setBlockManager(context.getBlockManager());
    walker.setExecutor(executor);
    FunctionDescriptor descriptor = walker.functionDescriptor();
    return descriptor;
  }
Esempio n. 5
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 public static ExecutionContext createGlobalExecutionContext(DynJS runtime) {
   // 10.4.1.1
   LexicalEnvironment env = LexicalEnvironment.newGlobalEnvironment(runtime);
   ExecutionContext context = new ExecutionContext(null, env, env, env.getGlobalObject(), false);
   context.clock = runtime.getConfig().getClock();
   context.timeZone = runtime.getConfig().getTimeZone();
   context.locale = runtime.getConfig().getLocale();
   return context;
 }
Esempio n. 6
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  @Override
  public Object call(ExecutionContext context, Object self, Object... args) {
    // 15.3.2.1
    int numArgs = args.length;
    String body = "";
    if (numArgs > 0) {
      body = Types.toString(context, args[numArgs - 1]);
    }

    StringBuffer formalParams = new StringBuffer();
    boolean first = true;

    Set<String> seenParams = new HashSet<>();
    boolean duplicateFormalParams = false;

    for (int i = 0; i < numArgs - 1; ++i) {
      if (!first) {
        formalParams.append(",");
      }
      String param = Types.toString(context, args[i]);
      if (seenParams.contains(param)) {
        duplicateFormalParams = true;
      }
      seenParams.add(param);
      formalParams.append(param);
      first = false;
    }

    StringBuffer code = new StringBuffer();
    code.append("function(" + formalParams.toString() + "){\n");
    code.append(body);
    code.append("}");

    try {
      FunctionDescriptor descriptor = parseFunction(context, code.toString());
      JSCompiler compiler = context.getGlobalObject().getCompiler();
      JSFunction function =
          compiler.compileFunction(
              context, descriptor.getFormalParameters(), descriptor.getBlock(), false);
      if (function.isStrict() && duplicateFormalParams) {
        throw new ThrowException(
            context,
            context.createSyntaxError("duplicate formal parameters in function definition"));
      }
      function.setPrototype(getPrototype());
      return function;
    } catch (RecognitionException e) {
      throw new ThrowException(context, context.createSyntaxError(e.getMessage()));
    }
  }
Esempio n. 7
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 @Override
 public Object call(ExecutionContext context, Object self, Object... args) {
   if (!(args[0] instanceof String)) {
     throw new ThrowException(context, context.createTypeError("Argument must be a string."));
   }
   String string = Types.toString(context, args[0]);
   return string.getBytes().length;
 }
Esempio n. 8
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  @Override
  public Object call(ExecutionContext context, Object self, Object... args) {
    JSObject o = Types.toObject(context, self);
    Object tv = Types.toPrimitive(context, o, "Number");

    if (tv instanceof Number) {
      if (Double.isInfinite(((Number) tv).doubleValue())) {
        return Types.NULL;
      }
    }

    Object toISO = o.get(context, "toISOString");
    if (!(toISO instanceof JSFunction)) {
      throw new ThrowException(context, context.createTypeError("toISOString must be a function"));
    }

    return context.call((JSFunction) toISO, o);
  }
Esempio n. 9
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 public void putValue(ExecutionContext context, Object value) {
   // 8.7.2
   if (isUnresolvableReference()) {
     if (isStrictReference()) {
       throw new ThrowException(
           context, context.createReferenceError(referencedName + " is not defined"));
     } else {
       context.getGlobalContext().getObject().put(context, this.referencedName, value, false);
     }
   } else if (isPropertyReference()) {
     if (!hasPrimitiveBase()) {
       ((JSObject) this.base).put(context, this.referencedName, value, this.strict);
     } else {
       // TODO: handle primitives
     }
   } else {
     ((EnvironmentRecord) this.base)
         .setMutableBinding(context, this.referencedName, value, this.strict);
   }
 }
Esempio n. 10
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  @Override
  public EvaluateResponse handle(EvaluateRequest request) {
    ExecutionContext context = null;

    if (request.isGlobal()) {
      context = this.debugger.getGlobalContext();
    } else {
      context = this.debugger.getContext(request.getFrame());
    }

    Runner runner = context.getRuntime().newRunner();

    try {
      Object result =
          runner.withContext(context).withSource(request.getExpression()).directEval().evaluate();
      return new EvaluateResponse(request, result, true, this.debugger.isRunning());
    } catch (ThrowException e) {
      return new EvaluateResponse(request, Types.UNDEFINED, true, this.debugger.isRunning());
    }
  }
Esempio n. 11
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  @Override
  public Object call(ExecutionContext context, Object self, Object... args) {
    Arguments argsObj = (Arguments) context.resolve("arguments").getValue(context);
    int numArgs = (int) argsObj.get(context, "length");

    if (self != Types.UNDEFINED && self != Types.NULL) {
      // Constructor
      String value = "";
      if (numArgs != 0) {
        value = Types.toString(context, args[0]);
      }
      PrimitiveDynObject primSelf = (PrimitiveDynObject) self;
      primSelf.setPrimitiveValue(value);
      return primSelf;
    } else {
      // As function
      if (numArgs == 0) {
        return "";
      }
      return Types.toString(context, args[0]);
    }
  }
Esempio n. 12
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  public Object getValue(ExecutionContext context) {
    // 8.7.1
    Object value = null;
    if (isUnresolvableReference()) {
      throw new ThrowException(
          context, context.createReferenceError(referencedName + " is not defined"));
    }

    if (isPropertyReference()) {
      if (!hasPrimitiveBase()) {
        value = ((JSObject) this.base).get(context, this.referencedName);
      } else {
        value = primitiveGet(context, Types.toObject(context, this.base), this.referencedName);
      }
    } else {
      value =
          ((EnvironmentRecord) this.base)
              .getBindingValue(context, this.referencedName, this.strict);
    }

    return value;
  }
Esempio n. 13
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  @Override
  public Object call(ExecutionContext context, Object self, Object... args) {
    Number number = 0L;
    Arguments argsObj = (Arguments) context.resolve("arguments").getValue(context);
    int numArgs = (int) argsObj.get(context, "length");

    if (numArgs != 0) {
      number = Types.toNumber(context, args[0]);
    }
    if (self == Types.UNDEFINED || self == Types.NULL) {
      // called as a function
      return number;
    } else {
      // called as a ctor
      PrimitiveDynObject numberObject = (PrimitiveDynObject) self;
      if (numArgs == 0) {
        number = 0L;
      }
      numberObject.setPrimitiveValue(number);
      return numberObject;
    }
  }
Esempio n. 14
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  @Override
  public Object call(ExecutionContext context, Object self, Object... args) {
    if (!(self instanceof DynDate)) {
      throw new ThrowException(
          context, context.createTypeError("setMonth(...) may only be used with Dates"));
    }

    DynDate dateObj = (DynDate) self;

    long t = dateObj.getTimeValue();

    Number y = Types.toNumber(context, args[0]);

    Number m = null;

    if (args[1] != Types.UNDEFINED) {
      m = Types.toNumber(context, args[1]);
    } else {
      m = monthFromTime(t);
    }

    Number dt = null;

    if (args[1] != Types.UNDEFINED) {
      dt = Types.toNumber(context, args[2]);
    } else {
      dt = dateFromTime(t);
    }

    Number newDate = makeDate(context, makeDay(context, yearFromTime(t), m, dt), timeWithinDay(t));

    Number u = timeClip(context, newDate);

    dateObj.setTimeValue(u);

    return u;
  }
Esempio n. 15
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  protected Object primitiveGet(ExecutionContext context, JSObject o, String name) {
    // 8.7.1 primitive [[Get]]
    Object d = o.getProperty(context, name, false);
    if (d == Types.UNDEFINED) {
      return Types.UNDEFINED;
    }

    PropertyDescriptor desc = (PropertyDescriptor) d;
    if (desc.isDataDescriptor()) {
      Object value = desc.getValue();
      if (value == null) {
        value = Types.UNDEFINED;
      }
      return value;
    }

    Object getter = desc.getGetter();

    if (getter == Types.UNDEFINED) {
      return Types.UNDEFINED;
    }

    return context.call((JSFunction) getter, o);
  }
Esempio n. 16
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 @Override
 public JSObject createNewObject(ExecutionContext context) {
   return new DynString(context.getGlobalObject());
 }
Esempio n. 17
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 @Override
 public JSObject createNewObject(ExecutionContext context) {
   // 15.7.2.1
   return new DynNumber(context.getGlobalObject());
 }
Esempio n. 18
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 public static ExecutionContext createGlobalExecutionContext(
     DynJS runtime, InitializationListener listener) {
   ExecutionContext context = ExecutionContext.createEvalExecutionContext(runtime);
   listener.initialize(context);
   return context;
 }
Esempio n. 19
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 public void collectStackElements(List<StackElement> elements) {
   elements.add(new StackElement(this.fileName, this.lineNumber, this.debugContext));
   if (parent != null) {
     parent.collectStackElements(elements);
   }
 }
  @Override
  public <T> void subscribe(
      final Observable<T> observable,
      final Object onNext,
      final Object onError,
      final Object onCompleted) {
    // final ExecutionContext context = ExecutionContext
    // .createGlobalExecutionContext(((DynJSRuntime)NodynRunner.getRuntime()).runtime);
    // .createFunctionExecutionContext(((JavascriptFunction)onNext).,
    // onNext, null, "test");
    /*
    try
    {
    	context.setFunctionParameters(new Object[] {
    			context.createPropertyReference("testval", "someName")

    			//new DynObject()

    			// GlobalObject.newGlobalObject(NodynRunner.getRuntime())
    	});
    	((JavascriptFunction) onNext).call(context);
    } catch (final Exception e1)
    {
    	e1.printStackTrace();
    }
    */
    if (observable == null) throw new NullPointerException("Can't subscribe to null-observer");

    for (Object callback : Arrays.asList(onNext, onError, onCompleted))
      if (callback != null && callback instanceof JavascriptFunction == false)
        throw new IllegalStateException(
            "UNEXPECTED callback type: " + callback.getClass().getName());

    try {
      final ExecutionContext context =
          ExecutionContext.createGlobalExecutionContext(
              (DynJS) DynJSRuntime.class.getField("runtime").get(NodynRunner.getRuntime()));
      observable.subscribe(
          new Observer<T>() {
            @Override
            public void onCompleted() {
              if (onCompleted != null) ((JavascriptFunction) onCompleted).call(context);
            }

            @Override
            public void onError(final Throwable e) {
              if (onError == null) return;
              context.setFunctionParameters(new Object[] {e});
              ((JavascriptFunction) onError).call(context);
            }

            @Override
            public void onNext(final T t) {
              if (onNext == null) return;
              context.setFunctionParameters(new Object[] {t});
              ((JavascriptFunction) onNext).call(context);
            }
          });
    } catch (final Exception e) {
      LOG.error("failed", e);
    }
  }
Esempio n. 21
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  @Override
  public Object call(ExecutionContext context, Object self, Object... args) {
    // 15.3.2.1
    int numArgs = args.length;
    String body = "";

    StringBuilder formalParams = new StringBuilder();
    boolean first = true;

    Set<String> seenParams = new HashSet<>();
    boolean duplicateFormalParams = false;

    for (int i = 0; i < numArgs - 1; ++i) {
      String paramStr = Types.toString(context, args[i]);
      StringTokenizer paramTokens = new StringTokenizer(paramStr, ",");
      while (paramTokens.hasMoreTokens()) {
        if (!first) {
          formalParams.append(",");
        }
        String param = paramTokens.nextToken().trim();
        if (seenParams.contains(param)) {
          duplicateFormalParams = true;
        }
        seenParams.add(param);
        formalParams.append(param);
        first = false;
      }
    }

    if (numArgs > 0) {
      body = Types.toString(context, args[numArgs - 1]);
    }

    StringBuilder code = new StringBuilder();
    code.append("function(" + formalParams.toString() + "){\n");
    code.append(body);
    code.append("}");

    try {
      FunctionDescriptor descriptor = parseFunction(context, code.toString());
      JSCompiler compiler = context.getGlobalObject().getCompiler();
      JSFunction function =
          compiler.compileFunction(
              context,
              descriptor.getIdentifier(),
              descriptor.getFormalParameterNames(),
              descriptor.getBlock(),
              descriptor.isStrict());
      if (function.isStrict()) {
        if (duplicateFormalParams) {
          throw new ThrowException(
              context,
              context.createSyntaxError("duplicate formal parameters in function definition"));
        }
        if (seenParams.contains("eval")) {
          throw new ThrowException(
              context,
              context.createSyntaxError(
                  "formal parameter 'eval' not allowed in function definition in strict-mode"));
        }
      }
      function.setPrototype(getPrototype());
      return function;
    } catch (ParserException e) {
      throw new ThrowException(context, context.createSyntaxError(e.getMessage()));
    } catch (IOException e) {
      throw new ThrowException(context, context.createSyntaxError(e.getMessage()));
    }
  }