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 #ifndef ES2PANDA_IR_EXPRESSION_ASSIGNMENT_EXPRESSION_H 17 #define ES2PANDA_IR_EXPRESSION_ASSIGNMENT_EXPRESSION_H 18 19 #include "ir/expression.h" 20 #include "lexer/token/tokenType.h" 21 namespace ark::es2panda::checker { 22 class ETSAnalyzer; 23 } // namespace ark::es2panda::checker 24 namespace ark::es2panda::ir { 25 class AssignmentExpression : public Expression { 26 private: 27 struct Tag {}; 28 29 public: 30 AssignmentExpression() = delete; 31 ~AssignmentExpression() override = default; 32 33 AssignmentExpression &operator=(const AssignmentExpression &) = delete; 34 NO_MOVE_SEMANTIC(AssignmentExpression); 35 AssignmentExpression(Expression * const left,Expression * const right,lexer::TokenType const assignmentOperator)36 explicit AssignmentExpression(Expression *const left, Expression *const right, 37 lexer::TokenType const assignmentOperator) 38 : AssignmentExpression(AstNodeType::ASSIGNMENT_EXPRESSION, left, right, assignmentOperator) 39 { 40 } 41 AssignmentExpression(AstNodeType const type,Expression * const left,Expression * const right,lexer::TokenType const assignmentOperator)42 explicit AssignmentExpression(AstNodeType const type, Expression *const left, Expression *const right, 43 lexer::TokenType const assignmentOperator) 44 : Expression(type), left_(left), right_(right), operator_(assignmentOperator) 45 { 46 } 47 48 explicit AssignmentExpression(Tag tag, AssignmentExpression const &other, Expression *left, Expression *right); 49 50 // NOTE (vivienvoros): these friend relationships can be removed once there are getters for private fields 51 friend class checker::ETSAnalyzer; 52 Left()53 [[nodiscard]] const Expression *Left() const noexcept 54 { 55 return left_; 56 } 57 Left()58 [[nodiscard]] Expression *Left() noexcept 59 { 60 return left_; 61 } 62 Right()63 [[nodiscard]] Expression *Right() noexcept 64 { 65 return right_; 66 } 67 Right()68 [[nodiscard]] const Expression *Right() const noexcept 69 { 70 return right_; 71 } 72 SetRight(Expression * const expr)73 void SetRight(Expression *const expr) noexcept 74 { 75 right_ = expr; 76 77 if (right_ != nullptr) { 78 right_->SetParent(this); 79 } 80 } 81 Result()82 [[nodiscard]] const Expression *Result() const noexcept 83 { 84 return result_; 85 } 86 Result()87 [[nodiscard]] Expression *Result() noexcept 88 { 89 return result_; 90 } 91 OperatorType()92 [[nodiscard]] lexer::TokenType OperatorType() const noexcept 93 { 94 return operator_; 95 } 96 SetOperatorType(lexer::TokenType tokenType)97 lexer::TokenType SetOperatorType(lexer::TokenType tokenType) noexcept 98 { 99 return operator_ = tokenType; 100 } 101 SetResult(Expression * expr)102 void SetResult(Expression *expr) noexcept 103 { 104 left_ = expr; 105 SetStart(left_->Start()); 106 } 107 IsLogicalExtended()108 [[nodiscard]] bool IsLogicalExtended() const noexcept 109 { 110 return operator_ == lexer::TokenType::PUNCTUATOR_LOGICAL_AND || 111 operator_ == lexer::TokenType::PUNCTUATOR_LOGICAL_OR; 112 } 113 Target()114 [[nodiscard]] varbinder::Variable *Target() noexcept 115 { 116 return target_; 117 } 118 Target()119 [[nodiscard]] varbinder::Variable *Target() const noexcept 120 { 121 return target_; 122 } 123 SetIgnoreConstAssign()124 void SetIgnoreConstAssign() 125 { 126 ignoreConstAssign_ = true; 127 } 128 IsIgnoreConstAssign()129 [[nodiscard]] bool IsIgnoreConstAssign() const 130 { 131 return ignoreConstAssign_; 132 } 133 134 [[nodiscard]] AssignmentExpression *Clone(ArenaAllocator *allocator, AstNode *parent) override; 135 136 [[nodiscard]] bool ConvertibleToAssignmentPatternLeft(bool mustBePattern); 137 [[nodiscard]] bool ConvertibleToAssignmentPatternRight(); 138 [[nodiscard]] bool ConvertibleToAssignmentPattern(bool mustBePattern = true); 139 140 void TransformChildren(const NodeTransformer &cb, std::string_view transformationName) override; 141 void Iterate(const NodeTraverser &cb) const override; 142 void Dump(ir::AstDumper *dumper) const override; 143 void Dump(ir::SrcDumper *dumper) const override; 144 void Compile(compiler::PandaGen *pg) const override; 145 void Compile(compiler::ETSGen *etsg) const override; 146 void CompilePattern(compiler::PandaGen *pg) const; 147 checker::Type *Check([[maybe_unused]] checker::TSChecker *checker) override; 148 checker::Type *Check([[maybe_unused]] checker::ETSChecker *checker) override; 149 Accept(ASTVisitorT * v)150 void Accept(ASTVisitorT *v) override 151 { 152 v->Accept(this); 153 } 154 155 protected: AssignmentExpression(AssignmentExpression const & other)156 AssignmentExpression(AssignmentExpression const &other) : Expression(static_cast<Expression const &>(other)) 157 { 158 operator_ = other.operator_; 159 target_ = other.target_; 160 operationType_ = other.operationType_; 161 } 162 163 private: 164 Expression *left_ = nullptr; 165 Expression *right_ = nullptr; 166 Expression *result_ = nullptr; 167 lexer::TokenType operator_; 168 varbinder::Variable *target_ {}; 169 checker::Type *operationType_ {}; 170 bool ignoreConstAssign_ = false; 171 }; 172 } // namespace ark::es2panda::ir 173 174 #endif 175