#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/text/AtomicString.h>
#if PLATFORM(IOS_FAMILY)
#include "WebCoreThreadInternal.h"
#endif
namespace WebCore {
JSC::VM* g_commonVMOrNull;
JSC::VM& commonVMSlow()
{
ASSERT(isMainThread());
ASSERT(!g_commonVMOrNull);
ScriptController::initializeThreading();
auto& vm = JSC::VM::create(JSC::LargeHeap).leakRef();
g_commonVMOrNull = &vm;
vm.heap.acquireAccess();
#if PLATFORM(IOS_FAMILY)
vm.setRunLoop(WebThreadRunLoop());
vm.heap.machineThreads().addCurrentThread();
#endif
vm.setGlobalConstRedeclarationShouldThrow(DeprecatedGlobalSettings::globalConstRedeclarationShouldThrow());
JSVMClientData::initNormalWorld(&vm);
return vm;
}
Frame* lexicalFrameFromCommonVM()
{
if (auto* topCallFrame = commonVM().topCallFrame) {
if (auto* globalObject = JSC::jsCast<JSDOMGlobalObject*>(topCallFrame->lexicalGlobalObject())) {
if (auto* window = JSC::jsDynamicCast<JSDOMWindow*>(commonVM(), globalObject)) {
if (auto* frame = window->wrapped().frame())
return frame;
}
}
}
return nullptr;
}
void addImpureProperty(const AtomicString& propertyName)
{
commonVM().addImpureProperty(propertyName);
}
}