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//===- lld/Core/Writer.h - Abstract File Format Interface -----------------===//
//
// The LLVM Linker
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
#ifndef LLD_CORE_WRITER_H
#define LLD_CORE_WRITER_H
#include "lld/Core/LLVM.h"
#include "llvm/Support/Error.h"
#include <memory>
#include <vector>
namespace lld {
class File;
class LinkingContext;
class MachOLinkingContext;
/// \brief The Writer is an abstract class for writing object files, shared
/// library files, and executable files. Each file format (e.g. mach-o, etc)
/// has a concrete subclass of Writer.
class Writer {
public:
virtual ~Writer();
/// \brief Write a file from the supplied File object
virtual llvm::Error writeFile(const File &linkedFile, StringRef path) = 0;
/// \brief This method is called by Core Linking to give the Writer a chance
/// to add file format specific "files" to set of files to be linked. This is
/// how file format specific atoms can be added to the link.
virtual void createImplicitFiles(std::vector<std::unique_ptr<File>> &) {}
protected:
// only concrete subclasses can be instantiated
Writer();
};
std::unique_ptr<Writer> createWriterMachO(const MachOLinkingContext &);
std::unique_ptr<Writer> createWriterYAML(const LinkingContext &);
} // end namespace lld
#endif
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