/* * Copyright (c) 2021-2024 Huawei Device Co., Ltd. * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ #include "ecmascript/builtins/builtins_proxy.h" #include "ecmascript/global_env.h" #include "ecmascript/js_function.h" namespace panda::ecmascript::builtins { // 26.2.1.1 Proxy( [ value ] ) JSTaggedValue BuiltinsProxy::ProxyConstructor(EcmaRuntimeCallInfo *argv) { ASSERT(argv); BUILTINS_API_TRACE(argv->GetThread(), Proxy, Constructor); [[maybe_unused]] EcmaHandleScope handleScope(argv->GetThread()); // 1.If NewTarget is undefined, throw a TypeError exception. JSHandle newTarget = GetNewTarget(argv); if (newTarget->IsUndefined()) { THROW_TYPE_ERROR_AND_RETURN(argv->GetThread(), "ProxyConstructor: NewTarget is undefined", JSTaggedValue::Exception()); } // 2.Return ProxyCreate(target, handler). JSHandle proxy = JSProxy::ProxyCreate(argv->GetThread(), GetCallArg(argv, 0), GetCallArg(argv, 1)); RETURN_EXCEPTION_IF_ABRUPT_COMPLETION(argv->GetThread()); return proxy.GetTaggedValue(); } // 26.2.2.1 Proxy.revocable ( target, handler ) JSTaggedValue BuiltinsProxy::Revocable(EcmaRuntimeCallInfo *argv) { ASSERT(argv); BUILTINS_API_TRACE(argv->GetThread(), Proxy, Revocable); JSThread *thread = argv->GetThread(); [[maybe_unused]] EcmaHandleScope handleScope(thread); // 1.Let p be ProxyCreate(target, handler). JSHandle proxy = JSProxy::ProxyCreate(thread, GetCallArg(argv, 0), GetCallArg(argv, 1)); // 2.ReturnIfAbrupt(p). RETURN_EXCEPTION_IF_ABRUPT_COMPLETION(thread); // 3 ~ 4 new revoker function and set the [[RevocableProxy]] internal slot JSHandle revoker = thread->GetEcmaVM()->GetFactory()->NewJSProxyRevocFunction(proxy); // 5.Let result be ObjectCreate(%ObjectPrototype%). JSHandle env = thread->GetEcmaVM()->GetGlobalEnv(); JSHandle proto = env->GetObjectFunctionPrototype(); JSHandle result = thread->GetEcmaVM()->GetFactory()->OrdinaryNewJSObjectCreate(proto); // 6.Perform CreateDataProperty(result, "proxy", p). auto globalConst = thread->GlobalConstants(); JSHandle proxyKey = globalConst->GetHandledProxyString(); JSObject::CreateDataProperty(thread, result, proxyKey, JSHandle(proxy)); // 7.Perform CreateDataProperty(result, "revoke", revoker). JSHandle revokeKey = globalConst->GetHandledRevokeString(); JSObject::CreateDataProperty(thread, result, revokeKey, JSHandle(revoker)); // 8.Return result. return result.GetTaggedValue(); } // A Proxy revocation function to invalidate a specific Proxy object JSTaggedValue BuiltinsProxy::InvalidateProxyFunction(EcmaRuntimeCallInfo *argv) { ASSERT(argv); BUILTINS_API_TRACE(argv->GetThread(), Proxy, InvalidateProxyFunction); JSThread *thread = argv->GetThread(); [[maybe_unused]] EcmaHandleScope handleScope(thread); JSHandle proxy = GetConstructor(argv); JSProxyRevocFunction::ProxyRevocFunctions(thread, JSHandle(proxy)); return JSTaggedValue::Undefined(); } } // namespace panda::ecmascript::builtins