private IObject CreateArgumentsObject(IArgs args)
{
return(new HLazy(
Environment,
() =>
{
var obj = new NArguments(Environment);
var len = Environment.CreateNumber(args.Count);
var lenDesc = Environment.CreateDataDescriptor(len, true, false, true);
var map = Environment.ObjectConstructor.Op_Construct(Environment.EmptyArgs);
var mappedNames = new List <string>();
var index = args.Count - 1;
obj.Class = "Arguments";
obj.Extensible = true;
obj.Prototype = Environment.ObjectPrototype;
obj.DefineOwnProperty("length", lenDesc, false);
while (--index >= 0)
{
var val = args[index];
var valDesc = Environment.CreateDataDescriptor(val, true, true, true);
obj.DefineOwnProperty(index.ToString(), valDesc, false);
if (index < FormalParameters.Count)
{
var name = FormalParameters[index];
if (!ExecutableCode.Strict)
{
var g = MakeArgGetter(name);
var p = MakeArgSetter(name);
var desc = Environment.CreateAccessorDescriptor(g, p, false, true);
map.DefineOwnProperty(name, desc, false);
mappedNames.Add(name);
}
}
}
if (mappedNames.Count > 0)
{
obj.ParameterMap = map;
}
if (!ExecutableCode.Strict)
{
var desc = Environment.CreateDataDescriptor(this, true, false, true);
obj.DefineOwnProperty("callee", desc, false);
}
else
{
var desc = Environment.CreateAccessorDescriptor(Environment.ThrowTypeErrorFunction, Environment.ThrowTypeErrorFunction, false, false);
obj.DefineOwnProperty("caller", desc, false);
obj.DefineOwnProperty("callee", desc, false);
}
return obj;
}
));
}
private IObject CreateArgumentsObject(IArgs args)
{
return new HLazy(
Environment,
() =>
{
var obj = new NArguments(Environment);
var len = Environment.CreateNumber(args.Count);
var lenDesc = Environment.CreateDataDescriptor(len, true, false, true);
var map = Environment.ObjectConstructor.Op_Construct(Environment.EmptyArgs);
var mappedNames = new List<string>();
var index = args.Count - 1;
obj.Class = "Arguments";
obj.Extensible = true;
obj.Prototype = Environment.ObjectPrototype;
obj.DefineOwnProperty("length", lenDesc, false);
while (--index >= 0)
{
var val = args[index];
var valDesc = Environment.CreateDataDescriptor(val, true, true, true);
obj.DefineOwnProperty(index.ToString(), valDesc, false);
if (index < FormalParameters.Count)
{
var name = FormalParameters[index];
if (!ExecutableCode.Strict)
{
var g = MakeArgGetter(name);
var p = MakeArgSetter(name);
var desc = Environment.CreateAccessorDescriptor(g, p, false, true);
map.DefineOwnProperty(name, desc, false);
mappedNames.Add(name);
}
}
}
if (mappedNames.Count > 0)
{
obj.ParameterMap = map;
}
if (!ExecutableCode.Strict)
{
var desc = Environment.CreateDataDescriptor(this, true, false, true);
obj.DefineOwnProperty("callee", desc, false);
}
else
{
var desc = Environment.CreateAccessorDescriptor(Environment.ThrowTypeErrorFunction, Environment.ThrowTypeErrorFunction, false, false);
obj.DefineOwnProperty("caller", desc, false);
obj.DefineOwnProperty("callee", desc, false);
}
return obj;
}
);
}