protected internal virtual JSValue GetFunctionReference(int key, JSEnvRec r)
{
JSContext ctx = this;
if (ctx.Source == null)
{
return(this.Parent.GetFunctionReference(key, r));
}
functionExpressionNode fncNode = ctx.Source.FunctionList[key];
JSFunctionObject fnc = new JSFunctionObject(fncNode, r);
fnc.SetDataProp("length", (double)fncNode.ParameterList.Names.Length, false, false, false);
return(fnc);
}
protected internal virtual JSValue GetFunctionReference(int key, JSEnvRec r)
{
JSContext ctx = this;
if (ctx.Source == null)
{
return this.Parent.GetFunctionReference(key, r);
}
functionExpressionNode fncNode = ctx.Source.FunctionList[key];
JSFunctionObject fnc = new JSFunctionObject(fncNode, r);
fnc.SetDataProp("length", (double) fncNode.ParameterList.Names.Length, false, false, false);
return fnc;
}
private void AddFunction()
{
this.FunctionCtor = new JSDelegateWrapper(delegate(JSContext Scope, JSValue ThisObj, JSArgs args, bool AsConstructor)
{
string argNames;
string sBody;
if (args.Count > 1)
{
string[] ar = new string[args.Count - 1];
for (int i = 0; i < (args.Count - 1); i++)
{
ar[i] = args[i].StringValue();
}
argNames = string.Join(",", ar);
}
else
{
argNames = "";
}
if (args.Count == 0)
{
sBody = "";
}
else
{
sBody = args[args.Count - 1].StringValue();
}
JSFunctionObject r = CompiledScript.Compile("(function (" + argNames + ") {" + sBody + "})", false).Run() as JSFunctionObject;
r.Scope = JSContext.CurrentGlobalContext.LexicalEnv;
return(r);
}, 1);
this.FunctionPrototype = new JSFunctionBase();
this.FunctionPrototype.SetDataProp("constructor", this.FunctionCtor, true, false, true);
this.FunctionPrototype.SetDataProp("call", new JSDelegateWrapper(delegate(JSContext Scope, JSValue ThisObj, JSArgs args, bool AsConstructor)
{
JSArgs newArgs;
if (AsConstructor)
{
throw new JSRuntimeException("TypeError", "Function.call called as constructor");
}
JSFunctionBase fnc = InternalUtilities.JSFunctionCast(ThisObj);
if (args.Count == 0)
{
newArgs = args;
}
else
{
JSValue[] newAr = new JSValue[args.Count - 1];
Array.Copy(args.ArgValues, 1, newAr, 0, args.Count - 1);
newArgs = new JSArgs(ThisObj, newAr);
}
return(fnc.Call(Scope, args[0], newArgs));
}, 1), true, false, true);
this.FunctionPrototype.SetDataProp("apply", new JSDelegateWrapper(delegate(JSContext Scope, JSValue ThisObj, JSArgs args, bool AsConstructor)
{
if (AsConstructor)
{
throw new JSRuntimeException("TypeError", "Function.apply called as constructor");
}
JSFunctionBase fnc = InternalUtilities.JSFunctionCast(ThisObj);
JSValue argArray = args[1];
if ((argArray is JSUndefined) || (argArray is JSNull))
{
return(fnc.Call(Scope, args[0], new JSArgs(ThisObj, new JSValue[0])));
}
if (!(argArray is JSObject))
{
throw new JSRuntimeException("TypeError", "Invalid argument to Function.apply");
}
JSValue olen = argArray["length"];
if (!olen.CheckCoercible())
{
throw new JSRuntimeException("TypeError", "Invalid argument to Function.apply");
}
double nlen = olen.NumberValue();
uint len = nlen.JSToUInt32();
if (len != nlen)
{
throw new JSRuntimeException("TypeError", "Invalid argument to Function.apply");
}
JSValue[] newAr = new JSValue[len];
for (int i = 0; i < len; i++)
{
newAr[i] = argArray[i.ToString()];
}
return(fnc.Call(Scope, args[0], new JSArgs(ThisObj, newAr)));
}, 2), true, false, true);
this.FunctionPrototype.SetDataProp("toString", new JSDelegateWrapper(delegate(JSContext Scope, JSValue ThisObj, JSArgs args, bool AsConstructor)
{
return(InternalUtilities.JSFunctionCast(ThisObj).GenerateString());
}), true, false, true);
this.FunctionPrototype.SetDataProp("length", 0.0, true, false, true);
this.FunctionCtor.SetDataProp("prototype", this.FunctionPrototype, false, false, false);
}
