1/*
2 * Copyright (c) 2021-2024 Huawei Device Co., Ltd.
3 * Licensed under the Apache License, Version 2.0 (the "License");
4 * you may not use this file except in compliance with the License.
5 * You may obtain a copy of the License at
6 *
7 *     http://www.apache.org/licenses/LICENSE-2.0
8 *
9 * Unless required by applicable law or agreed to in writing, software
10 * distributed under the License is distributed on an "AS IS" BASIS,
11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 * See the License for the specific language governing permissions and
13 * limitations under the License.
14 */
15
16#include "ecmascript/builtins/builtins_proxy.h"
17#include "ecmascript/global_env.h"
18#include "ecmascript/js_function.h"
19
20namespace panda::ecmascript::builtins {
21// 26.2.1.1 Proxy( [ value ] )
22JSTaggedValue BuiltinsProxy::ProxyConstructor(EcmaRuntimeCallInfo *argv)
23{
24    ASSERT(argv);
25    BUILTINS_API_TRACE(argv->GetThread(), Proxy, Constructor);
26    [[maybe_unused]] EcmaHandleScope handleScope(argv->GetThread());
27
28    // 1.If NewTarget is undefined, throw a TypeError exception.
29    JSHandle<JSTaggedValue> newTarget = GetNewTarget(argv);
30    if (newTarget->IsUndefined()) {
31        THROW_TYPE_ERROR_AND_RETURN(argv->GetThread(), "ProxyConstructor: NewTarget is undefined",
32                                    JSTaggedValue::Exception());
33    }
34
35    // 2.Return ProxyCreate(target, handler).
36    JSHandle<JSProxy> proxy = JSProxy::ProxyCreate(argv->GetThread(), GetCallArg(argv, 0), GetCallArg(argv, 1));
37    RETURN_EXCEPTION_IF_ABRUPT_COMPLETION(argv->GetThread());
38    return proxy.GetTaggedValue();
39}
40
41// 26.2.2.1 Proxy.revocable ( target, handler )
42JSTaggedValue BuiltinsProxy::Revocable(EcmaRuntimeCallInfo *argv)
43{
44    ASSERT(argv);
45    BUILTINS_API_TRACE(argv->GetThread(), Proxy, Revocable);
46    JSThread *thread = argv->GetThread();
47    [[maybe_unused]] EcmaHandleScope handleScope(thread);
48
49    // 1.Let p be ProxyCreate(target, handler).
50    JSHandle<JSProxy> proxy = JSProxy::ProxyCreate(thread, GetCallArg(argv, 0), GetCallArg(argv, 1));
51
52    // 2.ReturnIfAbrupt(p).
53    RETURN_EXCEPTION_IF_ABRUPT_COMPLETION(thread);
54
55    // 3 ~ 4 new revoker function and set the [[RevocableProxy]] internal slot
56    JSHandle<JSProxyRevocFunction> revoker = thread->GetEcmaVM()->GetFactory()->NewJSProxyRevocFunction(proxy);
57
58    // 5.Let result be ObjectCreate(%ObjectPrototype%).
59    JSHandle<GlobalEnv> env = thread->GetEcmaVM()->GetGlobalEnv();
60    JSHandle<JSTaggedValue> proto = env->GetObjectFunctionPrototype();
61    JSHandle<JSObject> result = thread->GetEcmaVM()->GetFactory()->OrdinaryNewJSObjectCreate(proto);
62
63    // 6.Perform CreateDataProperty(result, "proxy", p).
64    auto globalConst = thread->GlobalConstants();
65    JSHandle<JSTaggedValue> proxyKey = globalConst->GetHandledProxyString();
66    JSObject::CreateDataProperty(thread, result, proxyKey, JSHandle<JSTaggedValue>(proxy));
67
68    // 7.Perform CreateDataProperty(result, "revoke", revoker).
69    JSHandle<JSTaggedValue> revokeKey = globalConst->GetHandledRevokeString();
70    JSObject::CreateDataProperty(thread, result, revokeKey, JSHandle<JSTaggedValue>(revoker));
71
72    // 8.Return result.
73    return result.GetTaggedValue();
74}
75
76// A Proxy revocation function to invalidate a specific Proxy object
77JSTaggedValue BuiltinsProxy::InvalidateProxyFunction(EcmaRuntimeCallInfo *argv)
78{
79    ASSERT(argv);
80    BUILTINS_API_TRACE(argv->GetThread(), Proxy, InvalidateProxyFunction);
81    JSThread *thread = argv->GetThread();
82    [[maybe_unused]] EcmaHandleScope handleScope(thread);
83
84    JSHandle<JSTaggedValue> proxy = GetConstructor(argv);
85    JSProxyRevocFunction::ProxyRevocFunctions(thread, JSHandle<JSProxyRevocFunction>(proxy));
86    return JSTaggedValue::Undefined();
87}
88}  // namespace panda::ecmascript::builtins
89