Var JavascriptSet::NewInstance(RecyclableObject* function, CallInfo callInfo, ...)
{
PROBE_STACK(function->GetScriptContext(), Js::Constants::MinStackDefault);
ARGUMENTS(args, callInfo);
ScriptContext* scriptContext = function->GetScriptContext();
JavascriptLibrary* library = scriptContext->GetLibrary();
AUTO_TAG_NATIVE_LIBRARY_ENTRY(function, callInfo, _u("Set"));
Var newTarget = callInfo.Flags & CallFlags_NewTarget ? args.Values[args.Info.Count] : args[0];
bool isCtorSuperCall = (callInfo.Flags & CallFlags_New) && newTarget != nullptr && !JavascriptOperators::IsUndefined(newTarget);
Assert(isCtorSuperCall || !(callInfo.Flags & CallFlags_New) || args[0] == nullptr);
CHAKRATEL_LANGSTATS_INC_BUILTINCOUNT(SetCount);
JavascriptSet* setObject = nullptr;
if (callInfo.Flags & CallFlags_New)
{
setObject = library->CreateSet();
}
else
{
JavascriptError::ThrowTypeErrorVar(scriptContext, JSERR_NeedObjectOfType, _u("Set"), _u("Set"));
}
Assert(setObject != nullptr);
Var iterable = (args.Info.Count > 1) ? args[1] : library->GetUndefined();
RecyclableObject* iter = nullptr;
RecyclableObject* adder = nullptr;
if (JavascriptConversion::CheckObjectCoercible(iterable, scriptContext))
{
iter = JavascriptOperators::GetIterator(iterable, scriptContext);
Var adderVar = JavascriptOperators::GetProperty(setObject, PropertyIds::add, scriptContext);
if (!JavascriptConversion::IsCallable(adderVar))
{
JavascriptError::ThrowTypeError(scriptContext, JSERR_NeedFunction);
}
adder = RecyclableObject::FromVar(adderVar);
}
if (setObject->set != nullptr)
{
JavascriptError::ThrowTypeErrorVar(scriptContext, JSERR_ObjectIsAlreadyInitialized, _u("Set"), _u("Set"));
}
setObject->set = RecyclerNew(scriptContext->GetRecycler(), SetDataSet, scriptContext->GetRecycler());
if (iter != nullptr)
{
JavascriptOperators::DoIteratorStepAndValue(iter, scriptContext, [&](Var nextItem) {
CALL_FUNCTION(adder, CallInfo(CallFlags_Value, 2), setObject, nextItem);
});
}
return isCtorSuperCall ?
JavascriptOperators::OrdinaryCreateFromConstructor(RecyclableObject::FromVar(newTarget), setObject, nullptr, scriptContext) :
setObject;
}
Var JavascriptWeakMap::NewInstance(RecyclableObject* function, CallInfo callInfo, ...)
{
PROBE_STACK(function->GetScriptContext(), Js::Constants::MinStackDefault);
ARGUMENTS(args, callInfo);
ScriptContext* scriptContext = function->GetScriptContext();
JavascriptLibrary* library = scriptContext->GetLibrary();
Var newTarget = callInfo.Flags & CallFlags_NewTarget ? args.Values[args.Info.Count] : args[0];
bool isCtorSuperCall = (callInfo.Flags & CallFlags_New) && newTarget != nullptr && RecyclableObject::Is(newTarget);
Assert(isCtorSuperCall || !(callInfo.Flags & CallFlags_New) || args[0] == nullptr);
CHAKRATEL_LANGSTATS_INC_BUILTINCOUNT(WeakMapCount);
JavascriptWeakMap* weakMapObject = nullptr;
if (callInfo.Flags & CallFlags_New)
{
weakMapObject = library->CreateWeakMap();
}
else
{
JavascriptError::ThrowTypeErrorVar(scriptContext, JSERR_NeedObjectOfType, _u("WeakMap"), _u("WeakMap"));
}
Assert(weakMapObject != nullptr);
Var iterable = (args.Info.Count > 1) ? args[1] : library->GetUndefined();
RecyclableObject* iter = nullptr;
RecyclableObject* adder = nullptr;
if (JavascriptConversion::CheckObjectCoercible(iterable, scriptContext))
{
iter = JavascriptOperators::GetIterator(iterable, scriptContext);
Var adderVar = JavascriptOperators::GetProperty(weakMapObject, PropertyIds::set, scriptContext);
if (!JavascriptConversion::IsCallable(adderVar))
{
JavascriptError::ThrowTypeError(scriptContext, JSERR_NeedFunction);
}
adder = RecyclableObject::FromVar(adderVar);
}
if (iter != nullptr)
{
Var nextItem;
Var undefined = library->GetUndefined();
while (JavascriptOperators::IteratorStepAndValue(iter, scriptContext, &nextItem))
{
if (!JavascriptOperators::IsObject(nextItem))
{
JavascriptError::ThrowTypeError(scriptContext, JSERR_NeedObject);
}
RecyclableObject* obj = RecyclableObject::FromVar(nextItem);
Var key, value;
if (!JavascriptOperators::GetItem(obj, 0u, &key, scriptContext))
{
key = undefined;
}
if (!JavascriptOperators::GetItem(obj, 1u, &value, scriptContext))
{
value = undefined;
}
adder->GetEntryPoint()(adder, CallInfo(CallFlags_Value, 3), weakMapObject, key, value);
}
}
return isCtorSuperCall ?
JavascriptOperators::OrdinaryCreateFromConstructor(RecyclableObject::FromVar(newTarget), weakMapObject, nullptr, scriptContext) :
weakMapObject;
}
Var JavascriptMap::NewInstance(RecyclableObject* function, CallInfo callInfo, ...)
{
PROBE_STACK(function->GetScriptContext(), Js::Constants::MinStackDefault);
ARGUMENTS(args, callInfo);
ScriptContext* scriptContext = function->GetScriptContext();
JavascriptLibrary* library = scriptContext->GetLibrary();
AUTO_TAG_NATIVE_LIBRARY_ENTRY(function, callInfo, _u("Map"));
Var newTarget = callInfo.Flags & CallFlags_NewTarget ? args.Values[args.Info.Count] : args[0];
bool isCtorSuperCall = (callInfo.Flags & CallFlags_New) && newTarget != nullptr && !JavascriptOperators::IsUndefined(newTarget);
Assert(isCtorSuperCall || !(callInfo.Flags & CallFlags_New) || args[0] == nullptr);
CHAKRATEL_LANGSTATS_INC_BUILTINCOUNT(MapCount);
JavascriptMap* mapObject = nullptr;
if (callInfo.Flags & CallFlags_New)
{
mapObject = library->CreateMap();
}
else
{
JavascriptError::ThrowTypeErrorVar(scriptContext, JSERR_NeedObjectOfType, _u("Map"), _u("Map"));
}
Assert(mapObject != nullptr);
Var iterable = (args.Info.Count > 1) ? args[1] : library->GetUndefined();
RecyclableObject* iter = nullptr;
RecyclableObject* adder = nullptr;
if (JavascriptConversion::CheckObjectCoercible(iterable, scriptContext))
{
iter = JavascriptOperators::GetIterator(iterable, scriptContext);
Var adderVar = JavascriptOperators::GetProperty(mapObject, PropertyIds::set, scriptContext);
if (!JavascriptConversion::IsCallable(adderVar))
{
JavascriptError::ThrowTypeError(scriptContext, JSERR_NeedFunction);
}
adder = RecyclableObject::FromVar(adderVar);
}
if (mapObject->map != nullptr)
{
JavascriptError::ThrowTypeErrorVar(scriptContext, JSERR_ObjectIsAlreadyInitialized, _u("Map"), _u("Map"));
}
mapObject->map = RecyclerNew(scriptContext->GetRecycler(), MapDataMap, scriptContext->GetRecycler());
if (iter != nullptr)
{
Var undefined = library->GetUndefined();
JavascriptOperators::DoIteratorStepAndValue(iter, scriptContext, [&](Var nextItem) {
if (!JavascriptOperators::IsObject(nextItem))
{
JavascriptError::ThrowTypeError(scriptContext, JSERR_NeedObject);
}
RecyclableObject* obj = RecyclableObject::FromVar(nextItem);
Var key, value;
if (!JavascriptOperators::GetItem(obj, 0u, &key, scriptContext))
{
key = undefined;
}
if (!JavascriptOperators::GetItem(obj, 1u, &value, scriptContext))
{
value = undefined;
}
// CONSIDER: if adder is the default built-in, fast path it and skip the JS call?
CALL_FUNCTION(adder, CallInfo(CallFlags_Value, 3), mapObject, key, value);
});
}
return isCtorSuperCall ?
JavascriptOperators::OrdinaryCreateFromConstructor(RecyclableObject::FromVar(newTarget), mapObject, nullptr, scriptContext) :
mapObject;
}