| // 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. |
| |
| #include "src/tint/utils/generation_id.h" |
| |
| #include <atomic> |
| |
| namespace tint { |
| |
| namespace { |
| |
| std::atomic<uint32_t> next_generation_id{1}; |
| |
| } // namespace |
| |
| GenerationID::GenerationID() = default; |
| |
| GenerationID::GenerationID(uint32_t id) : val(id) {} |
| |
| GenerationID GenerationID::New() { |
| return GenerationID(next_generation_id++); |
| } |
| |
| namespace detail { |
| |
| /// AssertGenerationIDsEqual is called by TINT_ASSERT_GENERATION_IDS_EQUAL() and |
| /// TINT_ASSERT_GENERATION_IDS_EQUAL_IF_VALID() to assert that the GenerationIDs |
| /// `a` and `b` are equal. |
| void AssertGenerationIDsEqual(GenerationID a, |
| GenerationID b, |
| bool if_valid, |
| diag::System system, |
| const char* msg, |
| const char* file, |
| size_t line) { |
| if (a == b) { |
| return; // matched |
| } |
| if (if_valid && (!a || !b)) { |
| return; // a or b were not valid |
| } |
| diag::List diagnostics; |
| tint::InternalCompilerError(file, line, system, diagnostics) << msg; |
| } |
| |
| } // namespace detail |
| } // namespace tint |