| // Copyright 2021 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_TINT_LANG_WGSL_SEM_STRUCT_H_ |
| #define SRC_TINT_LANG_WGSL_SEM_STRUCT_H_ |
| |
| #include <optional> |
| |
| #include "src/tint/lang/core/builtin/address_space.h" |
| #include "src/tint/lang/core/type/struct.h" |
| #include "src/tint/lang/core/type/type.h" |
| #include "src/tint/lang/wgsl/ast/struct.h" |
| #include "src/tint/utils/containers/vector.h" |
| #include "src/tint/utils/symbol/symbol.h" |
| |
| // Forward declarations |
| namespace tint::ast { |
| class StructMember; |
| } // namespace tint::ast |
| namespace tint::sem { |
| class StructMember; |
| } // namespace tint::sem |
| namespace tint::type { |
| class StructMember; |
| } // namespace tint::type |
| |
| namespace tint::sem { |
| |
| /// Struct holds the semantic information for structures. |
| /// Unlike type::Struct, sem::Struct has an AST declaration node. |
| class Struct final : public Castable<Struct, type::Struct> { |
| public: |
| /// Constructor |
| /// @param declaration the AST structure declaration |
| /// @param name the name of the structure |
| /// @param members the structure members |
| /// @param align the byte alignment of the structure |
| /// @param size the byte size of the structure |
| /// @param size_no_padding size of the members without the end of structure alignment padding |
| Struct(const ast::Struct* declaration, |
| Symbol name, |
| VectorRef<const StructMember*> members, |
| uint32_t align, |
| uint32_t size, |
| uint32_t size_no_padding); |
| |
| /// Destructor |
| ~Struct() override; |
| |
| /// @returns the struct |
| const ast::Struct* Declaration() const { return declaration_; } |
| |
| /// @returns the members of the structure |
| VectorRef<const StructMember*> Members() const { |
| return Base::Members().ReinterpretCast<const StructMember*>(); |
| } |
| |
| private: |
| ast::Struct const* const declaration_; |
| }; |
| |
| /// StructMember holds the semantic information for structure members. |
| /// Unlike type::StructMember, sem::StructMember has an AST declaration node. |
| class StructMember final : public Castable<StructMember, type::StructMember> { |
| public: |
| /// Constructor |
| /// @param declaration the AST declaration node |
| /// @param name the name of the structure member |
| /// @param type the type of the member |
| /// @param index the index of the member in the structure |
| /// @param offset the byte offset from the base of the structure |
| /// @param align the byte alignment of the member |
| /// @param size the byte size of the member |
| /// @param attributes the optional attributes |
| StructMember(const ast::StructMember* declaration, |
| Symbol name, |
| const type::Type* type, |
| uint32_t index, |
| uint32_t offset, |
| uint32_t align, |
| uint32_t size, |
| const type::StructMemberAttributes& attributes); |
| |
| /// Destructor |
| ~StructMember() override; |
| |
| /// @returns the AST declaration node |
| const ast::StructMember* Declaration() const { return declaration_; } |
| |
| /// @returns the structure that owns this member |
| const sem::Struct* Struct() const { return static_cast<const sem::Struct*>(Base::Struct()); } |
| |
| private: |
| const ast::StructMember* const declaration_; |
| }; |
| |
| } // namespace tint::sem |
| |
| #endif // SRC_TINT_LANG_WGSL_SEM_STRUCT_H_ |