blob: 99cdda59d751de4856f465aeb0fe5827831f37fb [file] [log] [blame]
// 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/id/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,
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
}
tint::InternalCompilerError(file, line) << msg;
}
} // namespace detail
} // namespace tint