| // Copyright 2020 The Tint Authors. |
| // |
| // Licensed under the Apache License, Version 2.0 (the "License"); |
| // you may not use this file except in compliance with the License. |
| // You may obtain a copy of the License at |
| // |
| // http://www.apache.org/licenses/LICENSE-2.0 |
| // |
| // Unless required by applicable law or agreed to in writing, software |
| // distributed under the License is distributed on an "AS IS" BASIS, |
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| // See the License for the specific language governing permissions and |
| // limitations under the License. |
| |
| #ifndef SRC_SEM_VECTOR_TYPE_H_ |
| #define SRC_SEM_VECTOR_TYPE_H_ |
| |
| #include <string> |
| |
| #include "src/sem/type.h" |
| |
| namespace tint { |
| namespace sem { |
| |
| /// A vector type. |
| class Vector : public Castable<Vector, Type> { |
| public: |
| /// Constructor |
| /// @param subtype the vector element type |
| /// @param size the number of elements in the vector |
| Vector(Type const* subtype, uint32_t size); |
| /// Move constructor |
| Vector(Vector&&); |
| ~Vector() override; |
| |
| /// @returns the type of the vector elements |
| const Type* type() const { return subtype_; } |
| |
| /// @returns the name for th type |
| std::string type_name() const override; |
| |
| /// @param symbols the program's symbol table |
| /// @returns the name for this type that closely resembles how it would be |
| /// declared in WGSL. |
| std::string FriendlyName(const SymbolTable& symbols) const override; |
| |
| /// @returns true if constructible as per |
| /// https://gpuweb.github.io/gpuweb/wgsl/#constructible-types |
| bool IsConstructible() const override; |
| |
| /// @returns the number of elements in the vector |
| uint32_t Width() const { return width_; } |
| |
| /// @returns the size in bytes of the type. This may include tail padding. |
| uint32_t Size() const override; |
| |
| /// @returns the alignment in bytes of the type. This may include tail |
| /// padding. |
| uint32_t Align() const override; |
| |
| /// @param width the width of the vector |
| /// @returns the size in bytes of a vector of the given width. |
| static uint32_t SizeOf(uint32_t width); |
| |
| /// @param width the width of the vector |
| /// @returns the alignment in bytes of a vector of the given width. |
| static uint32_t AlignOf(uint32_t width); |
| |
| private: |
| Type const* const subtype_; |
| const uint32_t width_; |
| }; |
| |
| } // namespace sem |
| } // namespace tint |
| |
| #endif // SRC_SEM_VECTOR_TYPE_H_ |