1 /*
2 * Copyright (c) 2022 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/method.h"
17
18 #include "ecmascript/jspandafile/js_pandafile.h"
19 #include "ecmascript/jspandafile/program_object.h"
20
21 namespace panda::ecmascript {
ParseFunctionName() const22 std::string Method::ParseFunctionName() const
23 {
24 const JSPandaFile *jsPandaFile = GetJSPandaFile();
25 return MethodLiteral::ParseFunctionName(jsPandaFile, GetMethodId());
26 }
27
GetMethodName() const28 const char *Method::GetMethodName() const
29 {
30 const JSPandaFile *jsPandaFile = GetJSPandaFile();
31 return MethodLiteral::GetMethodName(jsPandaFile, GetMethodId());
32 }
33
GetMethodName(const JSPandaFile * file) const34 const char *Method::GetMethodName(const JSPandaFile *file) const
35 {
36 return MethodLiteral::GetMethodName(file, GetMethodId());
37 }
38
GetRecordName() const39 const CString Method::GetRecordName() const
40 {
41 const JSPandaFile *jsPandaFile = GetJSPandaFile();
42 return MethodLiteral::GetRecordName(jsPandaFile, GetMethodId());
43 }
44
GetCodeSize() const45 uint32_t Method::GetCodeSize() const
46 {
47 const JSPandaFile *jsPandaFile = GetJSPandaFile();
48 return MethodLiteral::GetCodeSize(jsPandaFile, GetMethodId());
49 }
50
GetJSPandaFile() const51 const JSPandaFile *Method::GetJSPandaFile() const
52 {
53 JSTaggedValue constpool = GetConstantPool();
54 if (constpool.IsUndefined()) {
55 return nullptr;
56 }
57
58 const ConstantPool *taggedPool = ConstantPool::Cast(constpool.GetTaggedObject());
59 return taggedPool->GetJSPandaFile();
60 }
61
GetMethodLiteral() const62 MethodLiteral *Method::GetMethodLiteral() const
63 {
64 if (IsAotWithCallField()) {
65 ASSERT(!IsNativeWithCallField());
66 const JSPandaFile *jsPandaFile = GetJSPandaFile();
67 return jsPandaFile->FindMethodLiteral(GetMethodId().GetOffset());
68 }
69 return reinterpret_cast<MethodLiteral *>(GetCodeEntryOrLiteral());
70 }
71
FindCatchBlock(uint32_t pc) const72 uint32_t Method::FindCatchBlock(uint32_t pc) const
73 {
74 ASSERT(!IsNativeWithCallField());
75 auto *pandaFile = GetJSPandaFile()->GetPandaFile();
76 panda_file::MethodDataAccessor mda(*pandaFile, GetMethodId());
77 panda_file::CodeDataAccessor cda(*pandaFile, mda.GetCodeId().value());
78
79 uint32_t pcOffset = INVALID_INDEX;
80 cda.EnumerateTryBlocks([&pcOffset, pc](panda_file::CodeDataAccessor::TryBlock &tryBlock) {
81 if ((tryBlock.GetStartPc() <= pc) && ((tryBlock.GetStartPc() + tryBlock.GetLength()) > pc)) {
82 tryBlock.EnumerateCatchBlocks([&](panda_file::CodeDataAccessor::CatchBlock &catchBlock) {
83 pcOffset = catchBlock.GetHandlerPc();
84 return false;
85 });
86 }
87 return pcOffset == INVALID_INDEX;
88 });
89 return pcOffset;
90 }
91
Create(JSThread * thread,const JSPandaFile * jsPandaFile,MethodLiteral * methodLiteral)92 JSHandle<Method> Method::Create(JSThread *thread, const JSPandaFile *jsPandaFile, MethodLiteral *methodLiteral)
93 {
94 EcmaVM *vm = thread->GetEcmaVM();
95 EntityId methodId = methodLiteral->GetMethodId();
96 JSTaggedValue patchVal = vm->GetQuickFixManager()->CheckAndGetPatch(thread, jsPandaFile, methodId);
97 if (!patchVal.IsHole()) {
98 return JSHandle<Method>(thread, patchVal);
99 }
100
101 JSHandle<Method> method = vm->GetFactory()->NewMethod(methodLiteral);
102 JSHandle<ConstantPool> newConstpool = thread->GetCurrentEcmaContext()->FindOrCreateConstPool(jsPandaFile, methodId);
103 method->SetConstantPool(thread, newConstpool);
104 return method;
105 }
106 } // namespace panda::ecmascript
107