Var JavascriptWeakMap::EntryHas(RecyclableObject* function, CallInfo callInfo, ...)
{
PROBE_STACK(function->GetScriptContext(), Js::Constants::MinStackDefault);
ARGUMENTS(args, callInfo);
ScriptContext* scriptContext = function->GetScriptContext();
if (!JavascriptWeakMap::Is(args[0]))
{
JavascriptError::ThrowTypeErrorVar(scriptContext, JSERR_NeedObjectOfType, _u("WeakMap.prototype.has"), _u("WeakMap"));
}
JavascriptWeakMap* weakMap = JavascriptWeakMap::FromVar(args[0]);
Var key = (args.Info.Count > 1) ? args[1] : scriptContext->GetLibrary()->GetUndefined();
bool hasValue = false;
if (JavascriptOperators::IsObject(key) && JavascriptOperators::GetTypeId(key) != TypeIds_HostDispatch)
{
DynamicObject* keyObj = DynamicObject::FromVar(key);
hasValue = weakMap->Has(keyObj);
}
return scriptContext->GetLibrary()->CreateBoolean(hasValue);
}
Var JavascriptWeakMap::EntrySet(RecyclableObject* function, CallInfo callInfo, ...)
{
PROBE_STACK(function->GetScriptContext(), Js::Constants::MinStackDefault);
ARGUMENTS(args, callInfo);
ScriptContext* scriptContext = function->GetScriptContext();
if (!JavascriptWeakMap::Is(args[0]))
{
JavascriptError::ThrowTypeErrorVar(scriptContext, JSERR_NeedObjectOfType, _u("WeakMap.prototype.set"), _u("WeakMap"));
}
JavascriptWeakMap* weakMap = JavascriptWeakMap::FromVar(args[0]);
Var key = (args.Info.Count > 1) ? args[1] : scriptContext->GetLibrary()->GetUndefined();
Var value = (args.Info.Count > 2) ? args[2] : scriptContext->GetLibrary()->GetUndefined();
if (!JavascriptOperators::IsObject(key) || JavascriptOperators::GetTypeId(key) == TypeIds_HostDispatch)
{
// HostDispatch can not expand so can't have internal property added to it.
// TODO: Support HostDispatch as WeakMap key
JavascriptError::ThrowTypeError(scriptContext, JSERR_WeakMapSetKeyNotAnObject, _u("WeakMap.prototype.set"));
}
DynamicObject* keyObj = DynamicObject::FromVar(key);
weakMap->Set(keyObj, value);
return weakMap;
}
Var JavascriptWeakMap::EntrySet(RecyclableObject* function, CallInfo callInfo, ...)
{
PROBE_STACK(function->GetScriptContext(), Js::Constants::MinStackDefault);
ARGUMENTS(args, callInfo);
ScriptContext* scriptContext = function->GetScriptContext();
if (!JavascriptWeakMap::Is(args[0]))
{
JavascriptError::ThrowTypeErrorVar(scriptContext, JSERR_NeedObjectOfType, _u("WeakMap.prototype.set"), _u("WeakMap"));
}
JavascriptWeakMap* weakMap = JavascriptWeakMap::FromVar(args[0]);
Var key = (args.Info.Count > 1) ? args[1] : scriptContext->GetLibrary()->GetUndefined();
Var value = (args.Info.Count > 2) ? args[2] : scriptContext->GetLibrary()->GetUndefined();
if (!JavascriptOperators::IsObject(key) || JavascriptOperators::GetTypeId(key) == TypeIds_HostDispatch)
{
// HostDispatch can not expand so can't have internal property added to it.
// TODO: Support HostDispatch as WeakMap key
JavascriptError::ThrowTypeError(scriptContext, JSERR_WeakMapSetKeyNotAnObject, _u("WeakMap.prototype.set"));
}
DynamicObject* keyObj = DynamicObject::FromVar(key);
#if ENABLE_TTD
//
//TODO: This makes the map decidedly less weak -- forces it to only release when we clean the tracking set but determinizes the behavior nicely
// We want to improve this.
//
if(scriptContext->ShouldPerformWeakRefPinAction())
{
scriptContext->TTDContextInfo->TTDWeakReferencePinSet->Add(keyObj);
}
#endif
weakMap->Set(keyObj, value);
return weakMap;
}
