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 "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 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
GenFunctionAnnotations(pandasm::Function * func)54 void JSFunctionEmitter::GenFunctionAnnotations(pandasm::Function *func)
55 {
56 pandasm::AnnotationData funcAnnotationData("_ESAnnotation");
57 pandasm::AnnotationElement icSizeAnnotationElement(
58 "icSize", std::make_unique<pandasm::ScalarValue>(
59 pandasm::ScalarValue::Create<pandasm::Value::Type::U32>(Pg()->IcSize())));
60 funcAnnotationData.AddElement(std::move(icSizeAnnotationElement));
61
62 pandasm::AnnotationElement parameterLengthAnnotationElement(
63 "parameterLength", std::make_unique<pandasm::ScalarValue>(
64 pandasm::ScalarValue::Create<pandasm::Value::Type::U32>(Pg()->FormalParametersCount())));
65 funcAnnotationData.AddElement(std::move(parameterLengthAnnotationElement));
66
67 pandasm::AnnotationElement funcNameAnnotationElement(
68 "funcName", std::make_unique<pandasm::ScalarValue>(
69 pandasm::ScalarValue::Create<pandasm::Value::Type::STRING>(Pg()->FunctionName().Mutf8())));
70 funcAnnotationData.AddElement(std::move(funcNameAnnotationElement));
71
72 func->metadata->AddAnnotations({funcAnnotationData});
73 }
74
GenAnnotation()75 void JSEmitter::GenAnnotation()
76 {
77 #ifdef PANDA_WITH_ECMASCRIPT
78 Program()->lang = panda_file::SourceLang::ECMASCRIPT;
79 GenESAnnotationRecord();
80 GenESModuleModeRecord(Context()->parserProgram->Kind() == parser::ScriptKind::MODULE);
81 #else
82 UNREACHABLE();
83 #endif
84 }
85
GenESAnnotationRecord()86 void JSEmitter::GenESAnnotationRecord()
87 {
88 auto annotationRecord = pandasm::Record("_ESAnnotation", Program()->lang);
89 annotationRecord.metadata->SetAttribute("external");
90 annotationRecord.metadata->SetAccessFlags(ACC_ANNOTATION);
91 Program()->recordTable.emplace(annotationRecord.name, std::move(annotationRecord));
92 }
93
GenESModuleModeRecord(bool isModule)94 void JSEmitter::GenESModuleModeRecord(bool isModule)
95 {
96 auto modeRecord = pandasm::Record("_ESModuleMode", Program()->lang);
97 modeRecord.metadata->SetAccessFlags(ACC_PUBLIC);
98
99 auto modeField = pandasm::Field(Program()->lang);
100 modeField.name = "isModule";
101 modeField.type = pandasm::Type("u8", 0);
102 modeField.metadata->SetValue(
103 pandasm::ScalarValue::Create<pandasm::Value::Type::U8>(static_cast<uint8_t>(isModule)));
104
105 modeRecord.fieldList.emplace_back(std::move(modeField));
106
107 Program()->recordTable.emplace(modeRecord.name, std::move(modeRecord));
108 }
109 } // namespace ark::es2panda::compiler
110