Files
clang-r547379/include/llvm/WindowsManifest/WindowsManifestMerger.h
Ryan Prichard 6024e5c395 Update prebuilt Clang to r547379 (20.0.0).
clang 20.0.0 (based on r547379) from build 12806354.

Bug: http://b/379133546
Test: N/A
Change-Id: I2eb8938af55d809de674be63cb30cf27e801862b

Upstream-Commit: ad834e67b1105d15ef907f6255d4c96e8e733f57
2025-11-26 14:59:46 -05:00

67 lines
2.2 KiB
C++

//===-- 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