39 lines
1.2 KiB
C++
39 lines
1.2 KiB
C++
// Copyright 2022 The Tint Authors.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#include "fuzzers/shuffle_transform.h"
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#include <random>
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#include "src/program_builder.h"
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namespace tint {
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namespace fuzzers {
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ShuffleTransform::ShuffleTransform(size_t seed) : seed_(seed) {}
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void ShuffleTransform::Run(CloneContext& ctx,
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const tint::transform::DataMap&,
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tint::transform::DataMap&) const {
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auto decls = ctx.src->AST().GlobalDeclarations();
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auto rng = std::mt19937_64{seed_};
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std::shuffle(std::begin(decls), std::end(decls), rng);
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for (auto* decl : decls) {
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ctx.dst->AST().AddGlobalDeclaration(ctx.Clone(decl));
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}
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}
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} // namespace fuzzers
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} // namespace tint
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