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// Copyright 2014 the V8 project authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "src/runtime/runtime-utils.h"
#include "src/arguments.h"
#include "src/debug/debug.h"
#include "src/isolate-inl.h"
namespace v8 {
namespace internal {
RUNTIME_FUNCTION(Runtime_IsObserved) {
SealHandleScope shs(isolate);
DCHECK(args.length() == 1);
if (!args[0]->IsJSReceiver()) return isolate->heap()->false_value();
CONVERT_ARG_CHECKED(JSReceiver, obj, 0);
DCHECK(!obj->IsJSGlobalProxy() || !obj->map()->is_observed());
return isolate->heap()->ToBoolean(obj->map()->is_observed());
}
RUNTIME_FUNCTION(Runtime_SetIsObserved) {
HandleScope scope(isolate);
DCHECK(args.length() == 1);
CONVERT_ARG_HANDLE_CHECKED(JSReceiver, obj, 0);
RUNTIME_ASSERT(!obj->IsJSGlobalProxy());
if (obj->IsJSProxy()) return isolate->heap()->undefined_value();
RUNTIME_ASSERT(!obj->map()->is_observed());
DCHECK(obj->IsJSObject());
JSObject::SetObserved(Handle<JSObject>::cast(obj));
return isolate->heap()->undefined_value();
}
RUNTIME_FUNCTION(Runtime_EnqueueMicrotask) {
HandleScope scope(isolate);
DCHECK(args.length() == 1);
CONVERT_ARG_HANDLE_CHECKED(JSFunction, microtask, 0);
isolate->EnqueueMicrotask(microtask);
return isolate->heap()->undefined_value();
}
RUNTIME_FUNCTION(Runtime_RunMicrotasks) {
HandleScope scope(isolate);
DCHECK(args.length() == 0);
isolate->RunMicrotasks();
return isolate->heap()->undefined_value();
}
RUNTIME_FUNCTION(Runtime_DeliverObservationChangeRecords) {
HandleScope scope(isolate);
DCHECK(args.length() == 2);
CONVERT_ARG_HANDLE_CHECKED(JSFunction, callback, 0);
CONVERT_ARG_HANDLE_CHECKED(Object, argument, 1);
v8::TryCatch catcher(reinterpret_cast<v8::Isolate*>(isolate));
// We should send a message on uncaught exception thrown during
// Object.observe delivery while not interrupting further delivery, thus
// we make a call inside a verbose TryCatch.
catcher.SetVerbose(true);
Handle<Object> argv[] = {argument};
// Allow stepping into the observer callback.
Debug* debug = isolate->debug();
if (debug->is_active() && debug->IsStepping() &&
debug->last_step_action() == StepIn) {
// Previous StepIn may have activated a StepOut if it was at the frame exit.
// In this case to be able to step into the callback again, we need to clear
// the step out first.
debug->ClearStepOut();
debug->FloodWithOneShot(callback);
}
USE(Execution::Call(isolate, callback, isolate->factory()->undefined_value(),
arraysize(argv), argv));
if (isolate->has_pending_exception()) {
isolate->ReportPendingMessages();
isolate->clear_pending_exception();
isolate->set_external_caught_exception(false);
}
return isolate->heap()->undefined_value();
}
RUNTIME_FUNCTION(Runtime_GetObservationState) {
HandleScope scope(isolate);
DCHECK(args.length() == 0);
isolate->CountUsage(v8::Isolate::kObjectObserve);
return isolate->heap()->observation_state();
}
static bool ContextsHaveSameOrigin(Handle<Context> context1,
Handle<Context> context2) {
return context1->security_token() == context2->security_token();
}
RUNTIME_FUNCTION(Runtime_ObserverObjectAndRecordHaveSameOrigin) {
HandleScope scope(isolate);
DCHECK(args.length() == 3);
CONVERT_ARG_HANDLE_CHECKED(JSFunction, observer, 0);
CONVERT_ARG_HANDLE_CHECKED(JSObject, object, 1);
CONVERT_ARG_HANDLE_CHECKED(JSObject, record, 2);
Handle<Context> observer_context(observer->context()->native_context());
Handle<Context> object_context(object->GetCreationContext());
Handle<Context> record_context(record->GetCreationContext());
return isolate->heap()->ToBoolean(
ContextsHaveSameOrigin(object_context, observer_context) &&
ContextsHaveSameOrigin(object_context, record_context));
}
RUNTIME_FUNCTION(Runtime_ObjectWasCreatedInCurrentOrigin) {
HandleScope scope(isolate);
DCHECK(args.length() == 1);
CONVERT_ARG_HANDLE_CHECKED(JSObject, object, 0);
Handle<Context> creation_context(object->GetCreationContext(), isolate);
return isolate->heap()->ToBoolean(
ContextsHaveSameOrigin(creation_context, isolate->native_context()));
}
RUNTIME_FUNCTION(Runtime_GetObjectContextObjectObserve) {
HandleScope scope(isolate);
DCHECK(args.length() == 1);
CONVERT_ARG_HANDLE_CHECKED(JSObject, object, 0);
Handle<Context> context(object->GetCreationContext(), isolate);
return context->native_object_observe();
}
RUNTIME_FUNCTION(Runtime_GetObjectContextObjectGetNotifier) {
HandleScope scope(isolate);
DCHECK(args.length() == 1);
CONVERT_ARG_HANDLE_CHECKED(JSObject, object, 0);
Handle<Context> context(object->GetCreationContext(), isolate);
return context->native_object_get_notifier();
}
RUNTIME_FUNCTION(Runtime_GetObjectContextNotifierPerformChange) {
HandleScope scope(isolate);
DCHECK(args.length() == 1);
CONVERT_ARG_HANDLE_CHECKED(JSObject, object_info, 0);
Handle<Context> context(object_info->GetCreationContext(), isolate);
return context->native_object_notifier_perform_change();
}
} // namespace internal
} // namespace v8
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