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//===--- HeaderGuard.h - clang-tidy -----------------------------*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
#ifndef LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_UTILS_HEADERGUARD_H
#define LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_UTILS_HEADERGUARD_H
#include "../ClangTidy.h"
namespace clang {
namespace tidy {
namespace utils {
/// Finds and fixes header guards.
class HeaderGuardCheck : public ClangTidyCheck {
public:
HeaderGuardCheck(StringRef Name, ClangTidyContext *Context)
: ClangTidyCheck(Name, Context) {}
void registerPPCallbacks(CompilerInstance &Compiler) override;
/// Returns ``true`` if the check should suggest inserting a trailing comment
/// on the ``#endif`` of the header guard. It will use the same name as
/// returned by ``HeaderGuardCheck::getHeaderGuard``.
virtual bool shouldSuggestEndifComment(StringRef Filename);
/// Returns ``true`` if the check should suggest changing an existing header
/// guard to the string returned by ``HeaderGuardCheck::getHeaderGuard``.
virtual bool shouldFixHeaderGuard(StringRef Filename);
/// Returns ``true`` if the check should add a header guard to the file
/// if it has none.
virtual bool shouldSuggestToAddHeaderGuard(StringRef Filename);
/// Returns a replacement for the ``#endif`` line with a comment mentioning
/// \p HeaderGuard. The replacement should start with ``endif``.
virtual std::string formatEndIf(StringRef HeaderGuard);
/// Gets the canonical header guard for a file.
virtual std::string getHeaderGuard(StringRef Filename,
StringRef OldGuard = StringRef()) = 0;
};
} // namespace utils
} // namespace tidy
} // namespace clang
#endif // LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_UTILS_HEADERGUARD_H
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