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// Copyright 2020 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.
#ifndef SRC_TRANSFORM_MANAGER_H_
#define SRC_TRANSFORM_MANAGER_H_
#include <memory>
#include <string>
#include <utility>
#include <vector>
#include "src/transform/transformer.h"
namespace tint {
namespace transform {
/// Manager for the provided passes. The passes will be execute in the
/// appended order. If any pass fails the manager will return immediately and
/// the error can be retrieved with the |error| method.
class Manager {
public:
/// Constructor
/// @param context the tint context
/// @param module the module to transform
Manager(Context* context, ast::Module* module);
~Manager();
/// Add pass to the manager
/// @param transform the transform to append
void append(std::unique_ptr<Transformer> transform) {
transforms_.push_back(std::move(transform));
}
/// Runs the transforms
/// @returns true on success; false otherwise
bool Run();
/// @returns the error, or blank if none set
std::string error() const { return error_; }
private:
Context* context_;
ast::Module* module_;
std::vector<std::unique_ptr<Transformer>> transforms_;
std::string error_;
};
} // namespace transform
} // namespace tint
#endif // SRC_TRANSFORM_MANAGER_H_