public override object ExecIdCall(IdFunctionObject f, Context cx, IScriptable scope, IScriptable thisObj, object [] args)
{
if (!f.HasTag(OBJECT_TAG))
{
return(base.ExecIdCall(f, cx, scope, thisObj, args));
}
int id = f.MethodId;
switch (id)
{
case Id_constructor: {
if (thisObj != null)
{
// BaseFunction.construct will set up parent, proto
return(f.Construct(cx, scope, args));
}
if (args.Length == 0 || args [0] == null || args [0] == Undefined.Value)
{
return(new BuiltinObject());
}
return(ScriptConvert.ToObject(cx, scope, args [0]));
}
case Id_toLocaleString:
// For now just alias toString
case Id_toString: {
if (cx.HasFeature(Context.Features.ToStringAsSource))
{
string s = ScriptRuntime.defaultObjectToSource(cx, scope, thisObj, args);
int L = s.Length;
if (L != 0 && s [0] == '(' && s [L - 1] == ')')
{
// Strip () that surrounds toSource
s = s.Substring(1, (L - 1) - (1));
}
return(s);
}
return(ScriptRuntime.DefaultObjectToString(thisObj));
}
case Id_valueOf:
return(thisObj);
case Id_hasOwnProperty: {
bool result;
if (args.Length == 0)
{
result = false;
}
else
{
string s = ScriptRuntime.ToStringIdOrIndex(cx, args [0]);
if (s == null)
{
int index = ScriptRuntime.lastIndexResult(cx);
result = thisObj.Has(index, thisObj);
}
else
{
result = thisObj.Has(s, thisObj);
}
}
return(result);
}
case Id_propertyIsEnumerable: {
bool result;
if (args.Length == 0)
{
result = false;
}
else
{
string s = ScriptRuntime.ToStringIdOrIndex(cx, args [0]);
if (s == null)
{
int index = ScriptRuntime.lastIndexResult(cx);
result = thisObj.Has(index, thisObj);
if (result && thisObj is ScriptableObject)
{
ScriptableObject so = (ScriptableObject)thisObj;
int attrs = so.GetAttributes(index);
result = ((attrs & ScriptableObject.DONTENUM) == 0);
}
}
else
{
result = thisObj.Has(s, thisObj);
if (result && thisObj is ScriptableObject)
{
ScriptableObject so = (ScriptableObject)thisObj;
int attrs = so.GetAttributes(s);
result = ((attrs & ScriptableObject.DONTENUM) == 0);
}
}
}
return(result);
}
case Id_isPrototypeOf: {
bool result = false;
if (args.Length != 0 && args [0] is IScriptable)
{
IScriptable v = (IScriptable)args [0];
do
{
v = v.GetPrototype();
if (v == thisObj)
{
result = true;
break;
}
}while (v != null);
}
return(result);
}
case Id_toSource:
return(ScriptRuntime.defaultObjectToSource(cx, scope, thisObj, args));
case Id___lookupGetter__:
case Id___lookupSetter__: {
if (args.Length < 1)
{
return(Undefined.Value);
}
string name = ScriptRuntime.ToStringIdOrIndex(cx, args [0]);
int index = (name != null) ? name.GetHashCode() : ScriptRuntime.lastIndexResult(cx);
// TODO: delegate way up to prototypes?
ScriptableObject so = (thisObj as ScriptableObject);
if (so == null)
{
throw ScriptRuntime.TypeError("this is not a scriptable object.");
}
if (id == Id___lookupGetter__)
{
return(so.LookupGetter(name));
}
else
{
return(so.LookupSetter(name));
}
}
case Id___defineGetter__:
case Id___defineSetter__: {
if (args.Length < 2 || args.Length > 0 && !(args [1] is ICallable))
{
object badArg = (args.Length > 1 ? args [1] : Undefined.Value);
throw ScriptRuntime.NotFunctionError(badArg);
}
string name = ScriptRuntime.ToStringIdOrIndex(cx, args [0]);
int index = (name != null) ? name.GetHashCode() : ScriptRuntime.lastIndexResult(cx);
// TODO: delegate way up to prototypes?
ScriptableObject so = (thisObj as ScriptableObject);
if (so == null)
{
throw ScriptRuntime.TypeError("this is not a scriptable object.");
}
ICallable getterOrSetter = (ICallable)args [1];
if (id == Id___defineGetter__)
{
if (name == null)
{
so.DefineGetter(index, getterOrSetter);
}
else
{
so.DefineGetter(name, getterOrSetter);
}
}
else
{
if (name == null)
{
so.DefineSetter(index, getterOrSetter);
}
else
{
so.DefineSetter(name, getterOrSetter);
}
}
return(Undefined.Value);
break;
}
default:
throw new ArgumentException(Convert.ToString(id));
}
}