clang-tidy/GlobList.h

//===--- GlobList.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
//
//===----------------------------------------------------------------------===//

#ifndef LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_GLOBLIST_H
#define LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_GLOBLIST_H

#include "clang/Basic/LLVM.h"
#include "llvm/ADT/StringRef.h"
#include "llvm/Support/Regex.h"
#include <memory>

namespace clang {
namespace tidy {

/// Read-only set of strings represented as a list of positive and
/// negative globs. Positive globs add all matched strings to the set, negative
/// globs remove them in the order of appearance in the list.
class GlobList {
public:
  /// \p GlobList is a comma-separated list of globs (only '*'
  /// metacharacter is supported) with optional '-' prefix to denote exclusion.
  GlobList(StringRef Globs);

  /// Returns \c true if the pattern matches \p S. The result is the last
  /// matching glob's Positive flag.
  bool contains(StringRef S) { return contains(S, false); }

private:
  bool contains(StringRef S, bool Contains);

  bool Positive;
  llvm::Regex Regex;
  std::unique_ptr<GlobList> NextGlob;
};

} // end namespace tidy
} // end namespace clang

#endif // LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_GLOBLIST_H