JSPromiseDeferred.h [plain text]
#pragma once
#include "JSCast.h"
#include "JSPromise.h"
#include "Structure.h"
namespace JSC {
class Exception;
class JSPromiseConstructor;
class JSFunction;
class JSPromiseDeferred : public JSCell {
public:
typedef JSCell Base;
static const unsigned StructureFlags = Base::StructureFlags | StructureIsImmortal;
struct DeferredData {
WTF_FORBID_HEAP_ALLOCATION;
public:
JSPromise* promise { nullptr };
JSFunction* resolve { nullptr };
JSFunction* reject { nullptr };
};
static DeferredData createDeferredData(ExecState*, JSGlobalObject*, JSPromiseConstructor*);
JS_EXPORT_PRIVATE static JSPromiseDeferred* tryCreate(ExecState*, JSGlobalObject*);
JS_EXPORT_PRIVATE static JSPromiseDeferred* create(VM&, JSPromise*, JSFunction* resolve, JSFunction* reject);
static Structure* createStructure(VM& vm, JSGlobalObject* globalObject, JSValue prototype)
{
return Structure::create(vm, globalObject, prototype, TypeInfo(CellType, StructureFlags), info());
}
DECLARE_EXPORT_INFO;
JSPromise* promise() const { return m_promise.get(); }
JSFunction* resolve() const { return m_resolve.get(); }
JSFunction* reject() const { return m_reject.get(); }
JS_EXPORT_PRIVATE void resolve(ExecState*, JSValue);
JS_EXPORT_PRIVATE void reject(ExecState*, JSValue);
JS_EXPORT_PRIVATE void reject(ExecState*, Exception*);
#ifndef NDEBUG
void promiseAsyncPending() { m_promiseIsAsyncPending = true; }
#endif
protected:
JSPromiseDeferred(VM&, Structure*);
void finishCreation(VM&, JSPromise*, JSFunction* resolve, JSFunction* reject);
static void visitChildren(JSCell*, SlotVisitor&);
private:
JSPromiseDeferred(VM&);
#ifndef NDEBUG
bool m_promiseIsAsyncPending { false };
#endif
WriteBarrier<JSPromise> m_promise;
WriteBarrier<JSFunction> m_resolve;
WriteBarrier<JSFunction> m_reject;
};
}