1 /*
2 * Copyright (c) 2021 - 2025 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 "JSemitter.h"
17
18 #include "compiler/core/pandagen.h"
19 #include "varbinder/varbinder.h"
20 #include "parser/program/program.h"
21 #include "assembly-program.h"
22 #include "public/public.h"
23
24 namespace ark::es2panda::compiler {
GenFunctionSignature()25 pandasm::Function *JSFunctionEmitter::GenFunctionSignature()
26 {
27 #ifdef PANDA_WITH_ECMASCRIPT
28 auto *func = new pandasm::Function(Cg()->InternalName().Mutf8(), panda_file::SourceLang::ECMASCRIPT);
29 GetProgramElement()->SetFunction(func);
30
31 size_t paramCount = Cg()->InternalParamCount();
32 func->params.reserve(paramCount);
33
34 for (uint32_t i = 0; i < paramCount; ++i) {
35 func->params.emplace_back(pandasm::Type("any", 0), panda_file::SourceLang::ECMASCRIPT);
36 }
37
38 func->regsNum = VReg::REG_START - Cg()->TotalRegsNum();
39 func->returnType = pandasm::Type("any", 0);
40
41 return func;
42 #else
43 ES2PANDA_UNREACHABLE();
44 #endif
45 }
46
GenVariableSignature(pandasm::debuginfo::LocalVariable & variableDebug,varbinder::LocalVariable * variable) const47 void JSFunctionEmitter::GenVariableSignature(pandasm::debuginfo::LocalVariable &variableDebug,
48 [[maybe_unused]] varbinder::LocalVariable *variable) const
49 {
50 variableDebug.signature = "any";
51 variableDebug.signatureType = "any";
52 }
53
GenSourceFileDebugInfo(pandasm::Function * func)54 void JSFunctionEmitter::GenSourceFileDebugInfo(pandasm::Function *func)
55 {
56 func->sourceFile = std::string {Cg()->VarBinder()->Program()->RelativeFilePath()};
57
58 if (!Cg()->IsDebug()) {
59 return;
60 }
61
62 if (Cg()->RootNode()->IsProgram()) {
63 func->sourceCode = SourceCode().EscapeSymbol<util::StringView::Mutf8Encode>();
64 }
65 }
66
GenFunctionAnnotations(pandasm::Function * func)67 void JSFunctionEmitter::GenFunctionAnnotations(pandasm::Function *func)
68 {
69 pandasm::AnnotationData funcAnnotationData("_ESAnnotation");
70 pandasm::AnnotationElement icSizeAnnotationElement(
71 "icSize", std::make_unique<pandasm::ScalarValue>(
72 pandasm::ScalarValue::Create<pandasm::Value::Type::U32>(Pg()->IcSize())));
73 funcAnnotationData.AddElement(std::move(icSizeAnnotationElement));
74
75 pandasm::AnnotationElement parameterLengthAnnotationElement(
76 "parameterLength", std::make_unique<pandasm::ScalarValue>(
77 pandasm::ScalarValue::Create<pandasm::Value::Type::U32>(Pg()->FormalParametersCount())));
78 funcAnnotationData.AddElement(std::move(parameterLengthAnnotationElement));
79
80 pandasm::AnnotationElement funcNameAnnotationElement(
81 "funcName", std::make_unique<pandasm::ScalarValue>(
82 pandasm::ScalarValue::Create<pandasm::Value::Type::STRING>(Pg()->FunctionName().Mutf8())));
83 funcAnnotationData.AddElement(std::move(funcNameAnnotationElement));
84
85 func->metadata->AddAnnotations({funcAnnotationData});
86 }
87
GenAnnotation()88 void JSEmitter::GenAnnotation()
89 {
90 #ifdef PANDA_WITH_ECMASCRIPT
91 Program()->lang = panda_file::SourceLang::ECMASCRIPT;
92 GenESAnnotationRecord();
93 GenESModuleModeRecord(Context()->parserProgram->Kind() == parser::ScriptKind::MODULE);
94 #else
95 ES2PANDA_UNREACHABLE();
96 #endif
97 }
98
GenESAnnotationRecord()99 void JSEmitter::GenESAnnotationRecord()
100 {
101 auto annotationRecord = pandasm::Record("_ESAnnotation", Program()->lang);
102 annotationRecord.metadata->SetAttribute("external");
103 annotationRecord.metadata->SetAccessFlags(ACC_ANNOTATION);
104 Program()->recordTable.emplace(annotationRecord.name, std::move(annotationRecord));
105 }
106
GenESModuleModeRecord(bool isModule)107 void JSEmitter::GenESModuleModeRecord(bool isModule)
108 {
109 auto modeRecord = pandasm::Record("_ESModuleMode", Program()->lang);
110 modeRecord.metadata->SetAccessFlags(ACC_PUBLIC);
111
112 auto modeField = pandasm::Field(Program()->lang);
113 modeField.name = "isModule";
114 modeField.type = pandasm::Type("u8", 0);
115 modeField.metadata->SetValue(
116 pandasm::ScalarValue::Create<pandasm::Value::Type::U8>(static_cast<uint8_t>(isModule)));
117
118 modeRecord.fieldList.emplace_back(std::move(modeField));
119
120 Program()->recordTable.emplace(modeRecord.name, std::move(modeRecord));
121 }
122 } // namespace ark::es2panda::compiler
123