EncodedJSValue JSC_HOST_CALL hasInstanceBoundFunction(ExecState* exec)
{
JSBoundFunction* boundObject = jsCast<JSBoundFunction*>(exec->uncheckedArgument(0));
JSValue value = exec->uncheckedArgument(1);
return JSValue::encode(jsBoolean(boundObject->targetFunction()->hasInstance(exec, value)));
}
JSBoundFunction* JSBoundFunction::create(ExecState* exec, JSGlobalObject* globalObject, JSObject* targetFunction, JSValue boundThis, JSValue boundArgs, int length, const String& name)
{
ConstructData constructData;
ConstructType constructType = JSC::getConstructData(targetFunction, constructData);
bool canConstruct = constructType != ConstructTypeNone;
NativeExecutable* executable = exec->vm().getHostFunction(boundFunctionCall, canConstruct ? boundFunctionConstruct : callHostFunctionAsConstructor);
JSBoundFunction* function = new (NotNull, allocateCell<JSBoundFunction>(*exec->heap())) JSBoundFunction(exec, globalObject, globalObject->boundFunctionStructure(), targetFunction, boundThis, boundArgs);
function->finishCreation(exec, executable, length, name);
return function;
}
void JSBoundFunction::visitChildren(JSCell* cell, SlotVisitor& visitor)
{
JSBoundFunction* thisObject = jsCast<JSBoundFunction*>(cell);
ASSERT_GC_OBJECT_INHERITS(thisObject, &s_info);
COMPILE_ASSERT(StructureFlags & OverridesVisitChildren, OverridesVisitChildrenWithoutSettingFlag);
ASSERT(thisObject->structure()->typeInfo().overridesVisitChildren());
Base::visitChildren(thisObject, visitor);
visitor.append(&thisObject->m_targetFunction);
visitor.append(&thisObject->m_boundThis);
visitor.append(&thisObject->m_boundArgs);
}
EncodedJSValue JSC_HOST_CALL boundThisNoArgsFunctionConstruct(ExecState* exec)
{
JSBoundFunction* boundFunction = jsCast<JSBoundFunction*>(exec->jsCallee());
MarkedArgumentBuffer args;
for (unsigned i = 0; i < exec->argumentCount(); ++i)
args.append(exec->uncheckedArgument(i));
JSFunction* targetFunction = jsCast<JSFunction*>(boundFunction->targetFunction());
ConstructData constructData;
ConstructType constructType = getConstructData(targetFunction, constructData);
ASSERT(constructType != ConstructType::None);
return JSValue::encode(construct(exec, targetFunction, constructType, constructData, args));
}
EncodedJSValue JSC_HOST_CALL boundFunctionConstruct(ExecState* exec)
{
JSBoundFunction* boundFunction = jsCast<JSBoundFunction*>(exec->callee());
ASSERT(isJSArray(boundFunction->boundArgs())); // Currently this is true!
JSArray* boundArgs = asArray(boundFunction->boundArgs());
MarkedArgumentBuffer args;
for (unsigned i = 0; i < boundArgs->length(); ++i)
args.append(boundArgs->getIndexQuickly(i));
for (unsigned i = 0; i < exec->argumentCount(); ++i)
args.append(exec->argument(i));
JSObject* targetFunction = boundFunction->targetFunction();
ConstructData constructData;
ConstructType constructType = getConstructData(targetFunction, constructData);
ASSERT(constructType != ConstructTypeNone);
return JSValue::encode(construct(exec, targetFunction, constructType, constructData, args));
}
EncodedJSValue JSC_HOST_CALL boundThisNoArgsFunctionCall(ExecState* exec)
{
JSBoundFunction* boundFunction = jsCast<JSBoundFunction*>(exec->jsCallee());
MarkedArgumentBuffer args;
for (unsigned i = 0; i < exec->argumentCount(); ++i)
args.append(exec->uncheckedArgument(i));
JSFunction* targetFunction = jsCast<JSFunction*>(boundFunction->targetFunction());
ExecutableBase* executable = targetFunction->executable();
if (executable->hasJITCodeForCall()) {
// Force the executable to cache its arity entrypoint.
executable->entrypointFor(CodeForCall, MustCheckArity);
}
CallData callData;
CallType callType = getCallData(targetFunction, callData);
ASSERT(callType != CallType::None);
return JSValue::encode(call(exec, targetFunction, callType, callData, boundFunction->boundThis(), args));
}
EncodedJSValue JSC_HOST_CALL boundFunctionCall(ExecState* exec)
{
JSBoundFunction* boundFunction = jsCast<JSBoundFunction*>(exec->jsCallee());
JSArray* boundArgs = boundFunction->boundArgs();
MarkedArgumentBuffer args;
if (boundArgs) {
for (unsigned i = 0; i < boundArgs->length(); ++i)
args.append(boundArgs->getIndexQuickly(i));
}
for (unsigned i = 0; i < exec->argumentCount(); ++i)
args.append(exec->uncheckedArgument(i));
JSObject* targetFunction = boundFunction->targetFunction();
CallData callData;
CallType callType = getCallData(targetFunction, callData);
ASSERT(callType != CallType::None);
return JSValue::encode(call(exec, targetFunction, callType, callData, boundFunction->boundThis(), args));
}
JSBoundFunction* JSBoundFunction::create(VM& vm, ExecState* exec, JSGlobalObject* globalObject, JSObject* targetFunction, JSValue boundThis, JSArray* boundArgs, int length, const String& name)
{
auto scope = DECLARE_THROW_SCOPE(vm);
ConstructData constructData;
ConstructType constructType = JSC::getConstructData(targetFunction, constructData);
bool canConstruct = constructType != ConstructType::None;
bool slowCase = boundArgs || !getJSFunction(targetFunction);
NativeExecutable* executable = vm.getHostFunction(
slowCase ? boundFunctionCall : boundThisNoArgsFunctionCall,
slowCase ? NoIntrinsic : BoundThisNoArgsFunctionCallIntrinsic,
canConstruct ? (slowCase ? boundFunctionConstruct : boundThisNoArgsFunctionConstruct) : callHostFunctionAsConstructor, nullptr,
name);
Structure* structure = getBoundFunctionStructure(vm, exec, globalObject, targetFunction);
RETURN_IF_EXCEPTION(scope, nullptr);
JSBoundFunction* function = new (NotNull, allocateCell<JSBoundFunction>(vm.heap)) JSBoundFunction(vm, globalObject, structure, targetFunction, boundThis, boundArgs);
function->finishCreation(vm, executable, length);
return function;
}
