| // 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_PROGRAM_ID_H_ |
| #define SRC_PROGRAM_ID_H_ |
| |
| #include <stdint.h> |
| |
| namespace tint { |
| |
| /// A ProgramID is a unique identifier of a Program. |
| /// ProgramID can be used to ensure that objects referenced by the Program are |
| /// owned exclusively by that Program and have accidentally not leaked from |
| /// another Program. |
| class ProgramID { |
| public: |
| /// Constructor |
| ProgramID(); |
| |
| /// @returns a new ProgramID |
| static ProgramID New(); |
| |
| /// Equality operator |
| /// @param rhs the other ProgramID |
| /// @returns true if the ProgramIDs are equal |
| bool operator==(const ProgramID& rhs) const { return val == rhs.val; } |
| |
| /// Inequality operator |
| /// @param rhs the other ProgramID |
| /// @returns true if the ProgramIDs are not equal |
| bool operator!=(const ProgramID& rhs) const { return val != rhs.val; } |
| |
| private: |
| explicit ProgramID(uint32_t); |
| |
| uint32_t val = 0; |
| }; |
| |
| } // namespace tint |
| |
| #endif // SRC_PROGRAM_ID_H_ |