85 lines
2.5 KiB
C++
85 lines
2.5 KiB
C++
//===-- Core/Transforms.h - class Transforms Def'n --------------*- C++ -*-===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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///
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/// \file
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/// \brief This file provides the definition for class Transforms which is
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/// responsible for defining the command-line arguments exposing
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/// transformations to the user and applying requested transforms.
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///
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//===----------------------------------------------------------------------===//
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#ifndef CLANG_MODERNIZE_TRANSFORMS_H
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#define CLANG_MODERNIZE_TRANSFORMS_H
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#include "llvm/ADT/StringRef.h"
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#include "llvm/Support/CommandLine.h"
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#include <vector>
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// Forward declarations
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namespace llvm {
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namespace cl {
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class Option;
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} // namespace cl
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} // namespace llvm
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class Transform;
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struct TransformOptions;
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struct CompilerVersions;
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typedef Transform *(*TransformCreator)(const TransformOptions &);
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template <typename T>
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Transform *ConstructTransform(const TransformOptions &Options) {
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return new T(Options);
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}
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/// \brief To group transforms together when printing the help.
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extern llvm::cl::OptionCategory TransformCategory;
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/// \brief Class encapsulating the creation of command line bool options
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/// for each transform and instantiating transforms chosen by the user.
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class Transforms {
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public:
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typedef std::vector<Transform*> TransformVec;
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typedef TransformVec::const_iterator const_iterator;
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public:
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~Transforms();
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/// \brief Registers all available transforms causing them to be made
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/// available on the command line.
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///
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/// Be sure to register all transforms *before* parsing command line options.
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void registerTransforms();
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/// \brief Instantiate all transforms that were selected on the command line.
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///
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/// Call *after* parsing options.
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void createSelectedTransforms(const TransformOptions &Options,
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const CompilerVersions &RequiredVersions);
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/// \brief Return an iterator to the start of a container of instantiated
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/// transforms.
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const_iterator begin() const { return ChosenTransforms.begin(); }
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/// \brief Return an iterator to the end of a container of instantiated
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/// transforms.
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const_iterator end() const { return ChosenTransforms.end(); }
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private:
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bool hasAnyExplicitOption() const;
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typedef llvm::StringMap<llvm::cl::opt<bool> *> OptionMap;
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private:
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TransformVec ChosenTransforms;
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OptionMap Options;
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};
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#endif // CLANG_MODERNIZE_TRANSFORMS_H
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