| // 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_TYPE_ACCESS_CONTROL_TYPE_H_ |
| #define SRC_TYPE_ACCESS_CONTROL_TYPE_H_ |
| |
| #include <string> |
| |
| #include "src/ast/access_control.h" |
| #include "src/type/type.h" |
| |
| namespace tint { |
| namespace type { |
| |
| /// An access control type. Holds an access setting and pointer to another type. |
| class AccessControl : public Castable<AccessControl, Type> { |
| public: |
| /// Constructor |
| /// @param access the access control setting |
| /// @param subtype the access controlled type |
| AccessControl(ast::AccessControl access, Type* subtype); |
| /// Move constructor |
| AccessControl(AccessControl&&); |
| ~AccessControl() override; |
| |
| /// @returns true if the access control is read only |
| bool IsReadOnly() const { return access_ == ast::AccessControl::kReadOnly; } |
| /// @returns true if the access control is write only |
| bool IsWriteOnly() const { return access_ == ast::AccessControl::kWriteOnly; } |
| /// @returns true if the access control is read/write |
| bool IsReadWrite() const { return access_ == ast::AccessControl::kReadWrite; } |
| |
| /// @returns the access control value |
| ast::AccessControl access_control() const { return access_; } |
| /// @returns the subtype type |
| Type* type() const { return subtype_; } |
| |
| /// @returns the name for this type |
| std::string type_name() const override; |
| |
| /// @param mem_layout type of memory layout to use in calculation. |
| /// @returns minimum size required for this type, in bytes. |
| /// 0 for non-host shareable types. |
| uint64_t MinBufferBindingSize(MemoryLayout mem_layout) const override; |
| |
| /// @param mem_layout type of memory layout to use in calculation. |
| /// @returns base alignment for the type, in bytes. |
| /// 0 for non-host shareable types. |
| uint64_t BaseAlignment(MemoryLayout mem_layout) const override; |
| |
| /// Clones this type and all transitive types using the `CloneContext` `ctx`. |
| /// @param ctx the clone context |
| /// @return the newly cloned type |
| AccessControl* Clone(CloneContext* ctx) const override; |
| |
| private: |
| ast::AccessControl const access_; |
| Type* const subtype_; |
| }; |
| |
| } // namespace type |
| } // namespace tint |
| |
| #endif // SRC_TYPE_ACCESS_CONTROL_TYPE_H_ |