1 // Copyright 2021 The Tint Authors. 2 // 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 #ifndef SRC_SEM_ATOMIC_TYPE_H_ 16 #define SRC_SEM_ATOMIC_TYPE_H_ 17 18 #include <string> 19 20 #include "src/sem/type.h" 21 22 namespace tint { 23 namespace sem { 24 25 /// A atomic type. 26 class Atomic : public Castable<Atomic, Type> { 27 public: 28 /// Constructor 29 /// @param subtype the atomic type 30 explicit Atomic(const sem::Type* subtype); 31 32 /// Move constructor 33 Atomic(Atomic&&); 34 ~Atomic() override; 35 36 /// @returns the atomic type Type()37 const sem::Type* Type() const { return subtype_; } 38 39 /// @returns the name for this type 40 std::string type_name() const override; 41 42 /// @param symbols the program's symbol table 43 /// @returns the name for this type that closely resembles how it would be 44 /// declared in WGSL. 45 std::string FriendlyName(const SymbolTable& symbols) const override; 46 47 /// @returns the size in bytes of the type. 48 uint32_t Size() const override; 49 50 /// @returns the alignment in bytes of the type. 51 uint32_t Align() const override; 52 53 /// @returns true if constructible as per 54 /// https://gpuweb.github.io/gpuweb/wgsl/#constructible-typesd 55 bool IsConstructible() const override; 56 57 private: 58 sem::Type const* const subtype_; 59 }; 60 61 } // namespace sem 62 } // namespace tint 63 64 #endif // SRC_SEM_ATOMIC_TYPE_H_ 65