#include "config.h"
#include "CommonVM.h"
#include "DOMWindow.h"
#include "DeprecatedGlobalSettings.h"
#include "Frame.h"
#include "ScriptController.h"
#include "WebCoreJSClientData.h"
#include <JavaScriptCore/HeapInlines.h>
#include <JavaScriptCore/MachineStackMarker.h>
#include <JavaScriptCore/VM.h>
#include <wtf/MainThread.h>
#include <wtf/RunLoop.h>
#include <wtf/text/AtomString.h>
#if PLATFORM(IOS_FAMILY)
#include "WebCoreThreadInternal.h"
#endif
namespace WebCore {
JSC::VM* g_commonVMOrNull;
JSC::VM& commonVMSlow()
{
ASSERT(isMainThread());
ASSERT(!g_commonVMOrNull);
ScriptController::initializeMainThread();
#if PLATFORM(IOS_FAMILY)
RunLoop* runLoop = RunLoop::webIfExists();
#else
RunLoop* runLoop = nullptr;
#endif
auto& vm = JSC::VM::create(JSC::LargeHeap, runLoop).leakRef();
g_commonVMOrNull = &vm;
vm.heap.acquireAccess();
#if PLATFORM(IOS_FAMILY)
if (WebThreadIsEnabled())
vm.apiLock().makeWebThreadAware();
vm.heap.machineThreads().addCurrentThread();
#endif
vm.setGlobalConstRedeclarationShouldThrow(DeprecatedGlobalSettings::globalConstRedeclarationShouldThrow());
JSVMClientData::initNormalWorld(&vm);
return vm;
}
Frame* lexicalFrameFromCommonVM()
{
JSC::VM& vm = commonVM();
if (auto* topCallFrame = vm.topCallFrame) {
if (auto* globalObject = JSC::jsCast<JSDOMGlobalObject*>(topCallFrame->lexicalGlobalObject(vm))) {
if (auto* window = JSC::jsDynamicCast<JSDOMWindow*>(vm, globalObject)) {
if (auto* frame = window->wrapped().frame())
return frame;
}
}
}
return nullptr;
}
void addImpureProperty(const AtomString& propertyName)
{
commonVM().addImpureProperty(propertyName.impl());
}
}