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#pragma once
#ifdef __GNUC__
#pragma GCC diagnostic push
#pragma GCC diagnostic ignored "-Wunused-parameter"
#endif
//===-- WindowsManifestMerger.h ---------------------------------*- C++-*-===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===---------------------------------------------------------------------===//
//
// This file provides a utility for merging Microsoft .manifest files. These
// files are xml documents which contain meta-information about applications,
// such as whether or not admin access is required, system compatibility,
// versions, etc. Part of the linking process of an executable may require
// merging several of these .manifest files using a tree-merge following
// specific rules. Unfortunately, these rules are not documented well
// anywhere. However, a careful investigation of the behavior of the original
// Microsoft Manifest Tool (mt.exe) revealed the rules of this merge. As the
// saying goes, code is the best documentation, so please look below if you are
// interested in the exact merging requirements.
//
// Ref:
// https://msdn.microsoft.com/en-us/library/windows/desktop/aa374191(v=vs.85).aspx
//
//===---------------------------------------------------------------------===//
#ifndef LLVM_WINDOWSMANIFEST_WINDOWSMANIFESTMERGER_H
#define LLVM_WINDOWSMANIFEST_WINDOWSMANIFESTMERGER_H
#include "llvm/Support/Error.h"
namespace llvm {
class MemoryBuffer;
class MemoryBufferRef;
namespace windows_manifest {
bool isAvailable();
class WindowsManifestError : public ErrorInfo<WindowsManifestError, ECError> {
public:
static char ID;
WindowsManifestError(const Twine &Msg);
void log(raw_ostream &OS) const override;
private:
std::string Msg;
};
class WindowsManifestMerger {
public:
WindowsManifestMerger();
~WindowsManifestMerger();
Error merge(MemoryBufferRef Manifest);
// Returns vector containing merged xml manifest, or uninitialized vector for
// empty manifest.
std::unique_ptr<MemoryBuffer> getMergedManifest();
private:
class WindowsManifestMergerImpl;
std::unique_ptr<WindowsManifestMergerImpl> Impl;
};
} // namespace windows_manifest
} // namespace llvm
#endif
#ifdef __GNUC__
#pragma GCC diagnostic pop
#endif
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