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//===-- Core/Transforms.h - class Transforms Def'n --------------*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
///
/// \file
/// \brief This file provides the definition for class Transforms which is
/// responsible for defining the command-line arguments exposing
/// transformations to the user and applying requested transforms.
///
//===----------------------------------------------------------------------===//
#ifndef CPP11_MIGRATE_TRANSFORMS_H
#define CPP11_MIGRATE_TRANSFORMS_H
#include "llvm/Support/CommandLine.h"
#include "llvm/ADT/StringRef.h"
#include <vector>
// Forward declarations
namespace llvm {
namespace cl {
class Option;
} // namespace cl
} // namespace llvm
class Transform;
struct TransformOptions;
struct CompilerVersions;
typedef Transform *(*TransformCreator)(const TransformOptions &);
template <typename T>
Transform *ConstructTransform(const TransformOptions &Options) {
return new T(Options);
}
/// \brief Class encapsulating the creation of command line bool options
/// for each transform and instantiating transforms chosen by the user.
class Transforms {
public:
typedef std::vector<Transform*> TransformVec;
typedef TransformVec::const_iterator const_iterator;
public:
~Transforms();
/// \brief Registers all available transforms causing them to be made
/// available on the command line.
///
/// Be sure to register all transforms *before* parsing command line options.
void registerTransforms();
/// \brief Instantiate all transforms that were selected on the command line.
///
/// Call *after* parsing options.
void createSelectedTransforms(const TransformOptions &Options,
const CompilerVersions &RequiredVersions);
/// \brief Return an iterator to the start of a container of instantiated
/// transforms.
const_iterator begin() const { return ChosenTransforms.begin(); }
/// \brief Return an iterator to the end of a container of instantiated
/// transforms.
const_iterator end() const { return ChosenTransforms.end(); }
private:
bool hasAnyExplicitOption() const;
typedef llvm::StringMap<llvm::cl::opt<bool> *> OptionMap;
private:
TransformVec ChosenTransforms;
OptionMap Options;
};
#endif // CPP11_MIGRATE_TRANSFORMS_H
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