public virtual bool MoveNext()
{
// OPT this could be more efficient
bool result;
for (; ;)
{
if (obj == null)
{
result = false;
break;
}
if (index == ids.Length)
{
obj = obj.GetPrototype();
this.ChangeObject();
continue;
}
object id = ids [index++];
if (used != null && used.has(id))
{
continue;
}
if (id is string)
{
string strId = (string)id;
if (!obj.Has(strId, obj))
{
continue; // must have been deleted
}
currentId = strId;
}
else
{
int intId = Convert.ToInt32(id);
if (!obj.Has(intId, obj))
{
continue; // must have been deleted
}
currentId = Convert.ToString(intId);
}
result = true;
break;
}
return(result);
}
private static IScriptable GetBase (IScriptable obj, int index)
{
do {
if (obj.Has (index, obj))
break;
obj = obj.GetPrototype ();
}
while (obj != null);
return obj;
}
private static IScriptable GetBase (IScriptable obj, string name)
{
do {
if (obj.Has (name, obj))
break;
obj = obj.GetPrototype ();
}
while (obj != null);
return obj;
}
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));
}
}
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));
}
}
public virtual bool Has(string name, IScriptable start)
{
return(obj.Has(name, start));
}
