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97b729de10
This CL adds a Transformer base class from which the transformers will inherit. Bug: tint:206 Change-Id: I542eacb05d9a92af46d172a5803c245472c0e22c Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/29120 Commit-Queue: dan sinclair <dsinclair@chromium.org> Reviewed-by: Ryan Harrison <rharrison@chromium.org>
54 lines
1.4 KiB
C++
54 lines
1.4 KiB
C++
// Copyright 2020 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_TRANSFORM_TRANSFORMER_H_
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#define SRC_TRANSFORM_TRANSFORMER_H_
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#include <string>
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#include "src/ast/module.h"
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#include "src/context.h"
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namespace tint {
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namespace transform {
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/// Interface class for the transformers
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class Transformer {
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public:
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/// Constructor
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/// @param ctx the Tint context
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/// @param mod the module to transform
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Transformer(Context* ctx, ast::Module* mod);
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virtual ~Transformer();
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/// @returns true if the transformation was successful
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virtual bool Run() = 0;
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/// @returns error messages
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const std::string& error() { return error_; }
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protected:
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/// The context
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Context* ctx_ = nullptr;
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/// The module
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ast::Module* mod_ = nullptr;
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/// Any error messages, or blank if no error
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std::string error_;
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};
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} // namespace transform
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} // namespace tint
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#endif // SRC_TRANSFORM_TRANSFORMER_H_
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