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c6b381495d
Replace the ShouldRun() method with Apply() which will do the transformation if it needs to be done, otherwise returns 'SkipTransform'. This reduces a bunch of duplicated scanning between the old ShouldRun() and Transform(). This change also adjusts code style to make the transforms more consistent. Change-Id: I9a6b10cb8b4ed62676b12ef30fb7764d363386c6 Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/107681 Reviewed-by: James Price <jrprice@google.com> Kokoro: Kokoro <noreply+kokoro@google.com> Commit-Queue: Ben Clayton <bclayton@google.com> Reviewed-by: Dan Sinclair <dsinclair@chromium.org>
64 lines
1.8 KiB
C++
64 lines
1.8 KiB
C++
// Copyright 2021 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 "src/tint/transform/add_empty_entry_point.h"
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#include <utility>
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#include "src/tint/program_builder.h"
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TINT_INSTANTIATE_TYPEINFO(tint::transform::AddEmptyEntryPoint);
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using namespace tint::number_suffixes; // NOLINT
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namespace tint::transform {
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namespace {
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bool ShouldRun(const Program* program) {
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for (auto* func : program->AST().Functions()) {
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if (func->IsEntryPoint()) {
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return false;
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}
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}
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return true;
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}
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} // namespace
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AddEmptyEntryPoint::AddEmptyEntryPoint() = default;
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AddEmptyEntryPoint::~AddEmptyEntryPoint() = default;
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Transform::ApplyResult AddEmptyEntryPoint::Apply(const Program* src,
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const DataMap&,
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DataMap&) const {
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if (!ShouldRun(src)) {
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return SkipTransform;
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}
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ProgramBuilder b;
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CloneContext ctx{&b, src, /* auto_clone_symbols */ true};
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b.Func(b.Symbols().New("unused_entry_point"), {}, b.ty.void_(), {},
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utils::Vector{
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b.Stage(ast::PipelineStage::kCompute),
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b.WorkgroupSize(1_i),
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});
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ctx.Clone();
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return Program(std::move(b));
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}
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} // namespace tint::transform
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