Var JavascriptExternalFunction::StdCallExternalFunctionThunk(RecyclableObject* function, CallInfo callInfo, ...)
{
RUNTIME_ARGUMENTS(args, callInfo);
JavascriptExternalFunction* externalFunction = static_cast<JavascriptExternalFunction*>(function);
externalFunction->PrepareExternalCall(&args);
ScriptContext * scriptContext = externalFunction->type->GetScriptContext();
AnalysisAssert(scriptContext);
Var result = NULL;
BEGIN_LEAVE_SCRIPT(scriptContext)
{
result = externalFunction->stdCallNativeMethod(function, ((callInfo.Flags & CallFlags_New) != 0), args.Values, args.Info.Count, externalFunction->callbackState);
}
END_LEAVE_SCRIPT(scriptContext);
if (result != nullptr && !Js::TaggedNumber::Is(result))
{
if (!Js::RecyclableObject::Is(result))
{
Js::Throw::InternalError();
}
Js::RecyclableObject * obj = Js::RecyclableObject::FromVar(result);
// For JSRT, we could get result marshalled in different context.
bool isJSRT = !(scriptContext->GetThreadContext()->GetIsThreadBound());
if (!isJSRT && obj->GetScriptContext() != scriptContext)
{
Js::Throw::InternalError();
}
}
if (scriptContext->HasRecordedException())
{
bool considerPassingToDebugger = false;
JavascriptExceptionObject* recordedException = scriptContext->GetAndClearRecordedException(&considerPassingToDebugger);
if (recordedException != nullptr)
{
// If this is script termination, then throw ScriptAbortExceptio, else throw normal Exception object.
if (recordedException == scriptContext->GetThreadContext()->GetPendingTerminatedErrorObject())
{
throw Js::ScriptAbortException();
}
else
{
JavascriptExceptionOperators::RethrowExceptionObject(recordedException, scriptContext, considerPassingToDebugger);
}
}
}
return externalFunction->FinishExternalCall(result);
}
// static
Var CrossSite::MarshalVar(ScriptContext* scriptContext, Var value, bool fRequestWrapper)
{
// value might be null from disable implicit call
if (value == nullptr || Js::TaggedNumber::Is(value))
{
return value;
}
Js::RecyclableObject* object = RecyclableObject::UnsafeFromVar(value);
if (fRequestWrapper || scriptContext != object->GetScriptContext())
{
return MarshalVarInner(scriptContext, object, fRequestWrapper);
}
return value;
}
Var JavascriptExternalFunction::StdCallExternalFunctionThunk(RecyclableObject* function, CallInfo callInfo, ...)
{
ARGUMENTS(args, callInfo);
JavascriptExternalFunction* externalFunction = static_cast<JavascriptExternalFunction*>(function);
externalFunction->PrepareExternalCall(&args);
ScriptContext * scriptContext = externalFunction->type->GetScriptContext();
AnalysisAssert(scriptContext);
if (args.Info.Count > USHORT_MAX)
{
// Due to compat reasons, stdcall external functions expect a ushort count of args.
// To support more than this we will need a new API.
Js::JavascriptError::ThrowTypeError(scriptContext, JSERR_ArgListTooLarge);
}
Var result = nullptr;
Assert(callInfo.Count > 0);
StdCallJavascriptMethodInfo info = {
args[0],
args.HasNewTarget() ? args.GetNewTarget() : args.IsNewCall() ? function : scriptContext->GetLibrary()->GetUndefined(),
args.IsNewCall()
};
#if ENABLE_TTD
if(scriptContext->ShouldPerformRecordOrReplayAction())
{
result = JavascriptExternalFunction::HandleRecordReplayExternalFunction_StdThunk(function, callInfo, args, scriptContext);
}
else
{
BEGIN_LEAVE_SCRIPT(scriptContext)
{
result = externalFunction->stdCallNativeMethod(function, args.Values, static_cast<USHORT>(args.Info.Count), &info, externalFunction->callbackState);
}
END_LEAVE_SCRIPT(scriptContext);
}
#else
BEGIN_LEAVE_SCRIPT(scriptContext)
{
result = externalFunction->stdCallNativeMethod(function, args.Values, static_cast<USHORT>(args.Info.Count), &info, externalFunction->callbackState);
}
END_LEAVE_SCRIPT(scriptContext);
#endif
bool marshallingMayBeNeeded = false;
if (result != nullptr)
{
marshallingMayBeNeeded = Js::RecyclableObject::Is(result);
if (marshallingMayBeNeeded)
{
Js::RecyclableObject * obj = Js::RecyclableObject::FromVar(result);
// For JSRT, we could get result marshalled in different context.
bool isJSRT = scriptContext->GetThreadContext()->IsJSRT();
marshallingMayBeNeeded = obj->GetScriptContext() != scriptContext;
if (!isJSRT && marshallingMayBeNeeded)
{
Js::Throw::InternalError();
}
}
}
if (scriptContext->HasRecordedException())
{
bool considerPassingToDebugger = false;
JavascriptExceptionObject* recordedException = scriptContext->GetAndClearRecordedException(&considerPassingToDebugger);
if (recordedException != nullptr)
{
// If this is script termination, then throw ScriptAbortExceptio, else throw normal Exception object.
if (recordedException == scriptContext->GetThreadContext()->GetPendingTerminatedErrorObject())
{
throw Js::ScriptAbortException();
}
else
{
JavascriptExceptionOperators::RethrowExceptionObject(recordedException, scriptContext, considerPassingToDebugger);
}
}
}
if (result == nullptr)
{
result = scriptContext->GetLibrary()->GetUndefined();
}
else if (marshallingMayBeNeeded)
{
result = CrossSite::MarshalVar(scriptContext, result);
}
return result;
}
Var JavascriptExternalFunction::StdCallExternalFunctionThunk(RecyclableObject* function, CallInfo callInfo, ...)
{
ARGUMENTS(args, callInfo);
JavascriptExternalFunction* externalFunction = static_cast<JavascriptExternalFunction*>(function);
externalFunction->PrepareExternalCall(&args);
ScriptContext * scriptContext = externalFunction->type->GetScriptContext();
AnalysisAssert(scriptContext);
Var result = NULL;
#if ENABLE_TTD
if(scriptContext->ShouldPerformRecordOrReplayAction())
{
result = JavascriptExternalFunction::HandleRecordReplayExternalFunction_StdThunk(function, callInfo, args, scriptContext);
}
else
{
BEGIN_LEAVE_SCRIPT(scriptContext)
{
result = externalFunction->stdCallNativeMethod(function, ((callInfo.Flags & CallFlags_New) != 0), args.Values, args.Info.Count, externalFunction->callbackState);
}
END_LEAVE_SCRIPT(scriptContext);
}
#else
BEGIN_LEAVE_SCRIPT(scriptContext)
{
result = externalFunction->stdCallNativeMethod(function, ((callInfo.Flags & CallFlags_New) != 0), args.Values, args.Info.Count, externalFunction->callbackState);
}
END_LEAVE_SCRIPT(scriptContext);
#endif
if (result != nullptr && !Js::TaggedNumber::Is(result))
{
if (!Js::RecyclableObject::Is(result))
{
Js::Throw::InternalError();
}
Js::RecyclableObject * obj = Js::RecyclableObject::FromVar(result);
// For JSRT, we could get result marshalled in different context.
bool isJSRT = scriptContext->GetThreadContext()->IsJSRT();
if (!isJSRT && obj->GetScriptContext() != scriptContext)
{
Js::Throw::InternalError();
}
}
if (scriptContext->HasRecordedException())
{
bool considerPassingToDebugger = false;
JavascriptExceptionObject* recordedException = scriptContext->GetAndClearRecordedException(&considerPassingToDebugger);
if (recordedException != nullptr)
{
// If this is script termination, then throw ScriptAbortExceptio, else throw normal Exception object.
if (recordedException == scriptContext->GetThreadContext()->GetPendingTerminatedErrorObject())
{
throw Js::ScriptAbortException();
}
else
{
JavascriptExceptionOperators::RethrowExceptionObject(recordedException, scriptContext, considerPassingToDebugger);
}
}
}
if (result == nullptr)
{
result = scriptContext->GetLibrary()->GetUndefined();
}
else
{
result = CrossSite::MarshalVar(scriptContext, result);
}
return result;
}