1 /*
2 * Copyright (c) 2021 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/base/json_parser.h"
17
18 namespace panda::ecmascript::base {
InternalizeJsonProperty(JSThread * thread,const JSHandle<JSObject> & holder,const JSHandle<JSTaggedValue> & name,const JSHandle<JSTaggedValue> & receiver)19 JSHandle<JSTaggedValue> Internalize::InternalizeJsonProperty(JSThread *thread, const JSHandle<JSObject> &holder,
20 const JSHandle<JSTaggedValue> &name,
21 const JSHandle<JSTaggedValue> &receiver)
22 {
23 JSHandle<JSTaggedValue> objHandle(holder);
24 JSHandle<JSTaggedValue> val = JSTaggedValue::GetProperty(thread, objHandle, name).GetValue();
25 RETURN_HANDLE_IF_ABRUPT_COMPLETION(JSTaggedValue, thread);
26 JSHandle<JSTaggedValue> lengthKey = thread->GlobalConstants()->GetHandledLengthString();
27 if (val->IsECMAObject()) {
28 JSHandle<JSObject> obj = JSTaggedValue::ToObject(thread, val);
29 RETURN_HANDLE_IF_ABRUPT_COMPLETION(JSTaggedValue, thread);
30 bool isArray = val->IsArray(thread);
31 if (isArray) {
32 JSHandle<JSTaggedValue> lenResult = JSTaggedValue::GetProperty(thread, val, lengthKey).GetValue();
33 RETURN_HANDLE_IF_ABRUPT_COMPLETION(JSTaggedValue, thread);
34 JSTaggedNumber lenNumber = JSTaggedValue::ToLength(thread, lenResult);
35 RETURN_HANDLE_IF_ABRUPT_COMPLETION(JSTaggedValue, thread);
36 uint32_t length = lenNumber.ToUint32();
37 JSMutableHandle<JSTaggedValue> keyUnknow(thread, JSTaggedValue::Undefined());
38 JSMutableHandle<JSTaggedValue> keyName(thread, JSTaggedValue::Undefined());
39 for (uint32_t i = 0; i < length; i++) {
40 // Let prop be ! ToString((I)).
41 keyUnknow.Update(JSTaggedValue(i));
42 keyName.Update(JSTaggedValue::ToString(thread, keyUnknow).GetTaggedValue());
43 RETURN_HANDLE_IF_ABRUPT_COMPLETION(JSTaggedValue, thread);
44 RecurseAndApply(thread, obj, keyName, receiver);
45 }
46 } else {
47 // Let keys be ? EnumerableOwnPropertyNames(val, key).
48 JSHandle<TaggedArray> ownerNames(JSObject::EnumerableOwnNames(thread, obj));
49 RETURN_HANDLE_IF_ABRUPT_COMPLETION(JSTaggedValue, thread);
50 uint32_t namesLength = ownerNames->GetLength();
51 JSMutableHandle<JSTaggedValue> keyName(thread, JSTaggedValue::Undefined());
52 for (uint32_t i = 0; i < namesLength; i++) {
53 keyName.Update(ownerNames->Get(i));
54 RecurseAndApply(thread, obj, keyName, receiver);
55 }
56 }
57 }
58
59 // Return ? Call(receiver, holder, « name, val »).
60 const uint32_t argsLength = 2; // 2: « name, val »
61 JSHandle<JSTaggedValue> undefined = thread->GlobalConstants()->GetHandledUndefined();
62 EcmaRuntimeCallInfo *info = EcmaInterpreter::NewRuntimeCallInfo(thread, receiver, objHandle, undefined, argsLength);
63 RETURN_HANDLE_IF_ABRUPT_COMPLETION(JSTaggedValue, thread);
64 info->SetCallArg(name.GetTaggedValue(), val.GetTaggedValue());
65 JSTaggedValue result = JSFunction::Call(info);
66 RETURN_HANDLE_IF_ABRUPT_COMPLETION(JSTaggedValue, thread);
67 return JSHandle<JSTaggedValue>(thread, result);
68 }
69
RecurseAndApply(JSThread * thread,const JSHandle<JSObject> & holder,const JSHandle<JSTaggedValue> & name,const JSHandle<JSTaggedValue> & receiver)70 bool Internalize::RecurseAndApply(JSThread *thread, const JSHandle<JSObject> &holder,
71 const JSHandle<JSTaggedValue> &name, const JSHandle<JSTaggedValue> &receiver)
72 {
73 JSHandle<JSTaggedValue> value = InternalizeJsonProperty(thread, holder, name, receiver);
74 bool changeResult = false;
75
76 // If newElement is undefined, then Perform ? val.[[Delete]](P).
77 if (value->IsUndefined()) {
78 changeResult = JSObject::DeleteProperty(thread, holder, name);
79 } else {
80 // Perform ? CreateDataProperty(val, P, newElement)
81 changeResult = JSObject::CreateDataProperty(thread, holder, name, value);
82 }
83 return changeResult;
84 }
85 } // namespace panda::ecmascript::base
86