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_COMPILER_CHECKER_TYPES_ETS_UNION_TYPE_H 17 #define ES2PANDA_COMPILER_CHECKER_TYPES_ETS_UNION_TYPE_H 18 19 #include "checker/types/type.h" 20 #include "checker/types/ets/etsObjectType.h" 21 22 namespace ark::es2panda::checker { 23 class GlobalTypesHolder; 24 25 class ETSUnionType : public Type { 26 public: 27 // constituentTypes must be normalized 28 explicit ETSUnionType(ETSChecker *checker, ArenaVector<Type *> &&constituentTypes); 29 ConstituentTypes()30 [[nodiscard]] const ArenaVector<Type *> &ConstituentTypes() const noexcept 31 { 32 return constituentTypes_; 33 } 34 35 void ToString(std::stringstream &ss, bool precise) const override; 36 void ToAssemblerType(std::stringstream &ss) const override; 37 void ToDebugInfoType(std::stringstream &ss) const override; 38 void Identical(TypeRelation *relation, Type *other) override; 39 void AssignmentTarget(TypeRelation *relation, Type *source) override; 40 bool AssignmentSource(TypeRelation *relation, Type *target) override; 41 Type *Instantiate(ArenaAllocator *allocator, TypeRelation *relation, GlobalTypesHolder *globalTypes) override; 42 Type *Substitute(TypeRelation *relation, const Substitution *substitution) override; 43 void Cast(TypeRelation *relation, Type *target) override; 44 void CastTarget(TypeRelation *relation, Type *source) override; 45 void IsSupertypeOf(TypeRelation *relation, Type *source) override; 46 void IsSubtypeOf(TypeRelation *relation, Type *target) override; 47 Type *FindTypeIsCastableToThis(ir::Expression *node, TypeRelation *relation, Type *source) const; 48 Type *FindTypeIsCastableToSomeType(ir::Expression *node, TypeRelation *relation, Type *target) const; 49 Type *FindUnboxableType() const; 50 51 bool HasObjectType(ETSObjectFlags flag) const; 52 bool HasUndefinedType() const; 53 bool HasType(Type *type) const; 54 bool HasNullishType(const ETSChecker *checker) const; 55 56 Type *FindExactOrBoxedType(ETSChecker *checker, Type *type) const; 57 58 static void NormalizeTypes(TypeRelation *relation, ArenaVector<Type *> &types); 59 60 std::tuple<bool, bool> ResolveConditionExpr() const override; 61 62 // Do not use it anywhere except codegen GetAssemblerLUB()63 Type *GetAssemblerLUB() const 64 { 65 return assemblerLub_; 66 } 67 68 template <class UnaryPredicate> AllOfConstituentTypes(UnaryPredicate p)69 bool AllOfConstituentTypes(UnaryPredicate p) const 70 { 71 return std::all_of(constituentTypes_.cbegin(), constituentTypes_.cend(), p); 72 } 73 74 [[nodiscard]] checker::Type *GetAssignableType(ETSChecker *checker, checker::Type *sourceType) const noexcept; 75 [[nodiscard]] std::pair<checker::Type *, checker::Type *> GetComplimentaryType(ETSChecker *checker, 76 checker::Type *sourceType); 77 78 private: 79 static bool EachTypeRelatedToSomeType(TypeRelation *relation, ETSUnionType *source, ETSUnionType *target); 80 static bool TypeRelatedToSomeType(TypeRelation *relation, Type *source, ETSUnionType *target); 81 82 template <typename RelFN> 83 void RelationTarget(TypeRelation *relation, Type *source, RelFN const &relFn); 84 85 static void LinearizeAndEraseIdentical(TypeRelation *relation, ArenaVector<Type *> &types); 86 [[nodiscard]] static bool ExtractType(ETSChecker *checker, checker::ETSObjectType *sourceType, 87 ArenaVector<Type *> &unionTypes) noexcept; 88 [[nodiscard]] static bool ExtractType(ETSChecker *checker, checker::ETSArrayType *sourceType, 89 ArenaVector<Type *> &unionTypes) noexcept; 90 91 [[nodiscard]] checker::Type *GetAssignableBuiltinType( 92 checker::ETSChecker *checker, checker::ETSObjectType *sourceType, bool isBool, bool isChar, 93 std::map<std::uint32_t, checker::Type *> &numericTypes) const noexcept; 94 95 static Type *ComputeAssemblerLUB(ETSChecker *checker, ETSUnionType *un); 96 97 ArenaVector<Type *> const constituentTypes_; 98 Type *assemblerLub_ {nullptr}; 99 }; 100 } // namespace ark::es2panda::checker 101 102 #endif /* ETS_TYPES_ETS_UNION_TYPE_H */ 103