JSAsyncGenerator.h [plain text]
#pragma once
#include "JSGenerator.h"
#include "JSInternalFieldObjectImpl.h"
namespace JSC {
class JSAsyncGenerator final : public JSInternalFieldObjectImpl<8> {
public:
using Base = JSInternalFieldObjectImpl<8>;
static size_t allocationSize(Checked<size_t> inlineCapacity)
{
ASSERT_UNUSED(inlineCapacity, inlineCapacity == 0U);
return sizeof(JSAsyncGenerator);
}
template<typename CellType, SubspaceAccess mode>
static IsoSubspace* subspaceFor(VM& vm)
{
return vm.asyncGeneratorSpace<mode>();
}
enum class AsyncGeneratorState : int32_t {
Completed = -1,
Executing = -2,
SuspendedStart = -3,
SuspendedYield = -4,
AwaitingReturn = -5,
};
static_assert(static_cast<int32_t>(AsyncGeneratorState::Completed) == static_cast<int32_t>(JSGenerator::GeneratorState::Completed));
static_assert(static_cast<int32_t>(AsyncGeneratorState::Executing) == static_cast<int32_t>(JSGenerator::GeneratorState::Executing));
enum class AsyncGeneratorSuspendReason : int32_t {
None = 0,
Yield = -1,
Await = -2
};
enum class Field : uint32_t {
PolyProto = 0,
State,
Next,
This,
Frame,
SuspendReason,
QueueFirst,
QueueLast,
};
static_assert(numberOfInternalFields == 8);
static std::array<JSValue, numberOfInternalFields> initialValues()
{
return { {
jsNull(),
jsNumber(static_cast<int32_t>(AsyncGeneratorState::SuspendedStart)),
jsUndefined(),
jsUndefined(),
jsUndefined(),
jsNumber(static_cast<int32_t>(AsyncGeneratorSuspendReason::None)),
jsNull(),
jsNull(),
} };
}
static JSAsyncGenerator* create(VM&, Structure*);
static Structure* createStructure(VM&, JSGlobalObject*, JSValue);
DECLARE_EXPORT_INFO;
static void visitChildren(JSCell*, SlotVisitor&);
private:
JSAsyncGenerator(VM&, Structure*);
void finishCreation(VM&);
};
}