private static IDynamic Bind(IEnvironment environment, IArgs args)
{
var callable = environment.Context.ThisBinding as ICallable;
if (callable == null)
{
throw environment.CreateTypeError("");
}
var target = (IObject)callable;
var thisArg = args[0];
var callArgs = environment.EmptyArgs;
var func = new NBoundFunction(environment);
if (args.Count > 1)
{
callArgs = environment.CreateArgs(args.Skip(1));
}
func.Class = "Function";
func.Extensible = true;
func.Prototype = environment.FunctionPrototype;
func.TargetFunction = target;
func.BoundThis = thisArg;
func.BoundArguments = callArgs;
var length = 0.0;
if (target.Class == "Function")
{
length = callArgs.Count - target.Get("length").ConvertToUInt32().BaseValue;
}
var lengthNum = environment.CreateNumber(length);
var thrower = environment.ThrowTypeErrorFunction;
var desc = environment.CreateDataDescriptor(lengthNum, false, false, false);
func.DefineOwnProperty("length", desc, false);
desc = environment.CreateAccessorDescriptor(thrower, thrower, false, false);
func.DefineOwnProperty("caller", desc, false);
func.DefineOwnProperty("arguments", desc, false);
return(func);
}
private static IDynamic Bind(IEnvironment environment, IArgs args)
{
var callable = environment.Context.ThisBinding as ICallable;
if (callable == null)
{
throw environment.CreateTypeError("");
}
var target = (IObject)callable;
var thisArg = args[0];
var callArgs = environment.EmptyArgs;
var func = new NBoundFunction(environment);
if (args.Count > 1)
{
callArgs = environment.CreateArgs(args.Skip(1));
}
func.Class = "Function";
func.Extensible = true;
func.Prototype = environment.FunctionPrototype;
func.TargetFunction = target;
func.BoundThis = thisArg;
func.BoundArguments = callArgs;
var length = 0.0;
if (target.Class == "Function")
{
length = callArgs.Count - target.Get("length").ConvertToUInt32().BaseValue;
}
var lengthNum = environment.CreateNumber(length);
var thrower = environment.ThrowTypeErrorFunction;
var desc = environment.CreateDataDescriptor(lengthNum, false, false, false);
func.DefineOwnProperty("length", desc, false);
desc = environment.CreateAccessorDescriptor(thrower, thrower, false, false);
func.DefineOwnProperty("caller", desc, false);
func.DefineOwnProperty("arguments", desc, false);
return func;
}
