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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>
97 lines
3.1 KiB
C++
97 lines
3.1 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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#ifndef SRC_TINT_TRANSFORM_RENAMER_H_
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#define SRC_TINT_TRANSFORM_RENAMER_H_
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#include <string>
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#include <unordered_map>
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#include "src/tint/transform/transform.h"
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namespace tint::transform {
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/// Renamer is a Transform that renames all the symbols in a program.
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class Renamer final : public Castable<Renamer, Transform> {
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public:
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/// Data is outputted by the Renamer transform.
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/// Data holds information about shader usage and constant buffer offsets.
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struct Data final : public Castable<Data, transform::Data> {
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/// Remappings is a map of old symbol name to new symbol name
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using Remappings = std::unordered_map<std::string, std::string>;
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/// Constructor
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/// @param remappings the symbol remappings
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explicit Data(Remappings&& remappings);
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/// Copy constructor
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Data(const Data&);
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/// Destructor
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~Data() override;
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/// A map of old symbol name to new symbol name
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const Remappings remappings;
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};
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/// Target is an enumerator of rename targets that can be used
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enum class Target {
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/// Rename every symbol.
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kAll,
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/// Only rename symbols that are reserved keywords in GLSL.
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kGlslKeywords,
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/// Only rename symbols that are reserved keywords in HLSL.
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kHlslKeywords,
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/// Only rename symbols that are reserved keywords in MSL.
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kMslKeywords,
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};
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/// Optional configuration options for the transform.
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/// If omitted, then the renamer will use Target::kAll.
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struct Config final : public Castable<Config, transform::Data> {
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/// Constructor
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/// @param tgt the targets to rename
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/// @param keep_unicode if false, symbols with non-ascii code-points are
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/// renamed
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explicit Config(Target tgt, bool keep_unicode = false);
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/// Copy constructor
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Config(const Config&);
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/// Destructor
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~Config() override;
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/// The targets to rename
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Target const target = Target::kAll;
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/// If false, symbols with non-ascii code-points are renamed.
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bool preserve_unicode = false;
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};
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/// Constructor using a the configuration provided in the input Data
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Renamer();
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/// Destructor
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~Renamer() override;
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/// @copydoc Transform::Apply
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ApplyResult Apply(const Program* program,
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const DataMap& inputs,
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DataMap& outputs) const override;
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};
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} // namespace tint::transform
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#endif // SRC_TINT_TRANSFORM_RENAMER_H_
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