Subversion Repositories QNX 8.QNX8 LLVM/Clang compiler suite

//===- StringTable.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_DEBUGINFO_GSYM_STRINGTABLE_H

#define LLVM_DEBUGINFO_GSYM_STRINGTABLE_H

#include "llvm/ADT/StringRef.h"

#include "llvm/DebugInfo/GSYM/ExtractRanges.h"

#include <stdint.h>

namespace llvm {

namespace gsym {

/// String tables in GSYM files are required to start with an empty

/// string at offset zero. Strings must be UTF8 NULL terminated strings.

struct StringTable {

  StringRef Data;

  StringTable() = default;

  StringTable(StringRef D) : Data(D) {}

  StringRef operator[](size_t Offset) const { return getString(Offset); }

  StringRef getString(uint32_t Offset) const {

    if (Offset < Data.size()) {

      auto End = Data.find('\0', Offset);

      return Data.substr(Offset, End - Offset);

    }

    return StringRef();

  }

  void clear() { Data = StringRef(); }

};

inline raw_ostream &operator<<(raw_ostream &OS, const StringTable &S) {

  OS << "String table:\n";

  uint32_t Offset = 0;

  const size_t Size = S.Data.size();

  while (Offset < Size) {

    StringRef Str = S.getString(Offset);

    OS << HEX32(Offset) << ": \"" << Str << "\"\n";

    Offset += Str.size() + 1;

  }

  return OS;

}

} // namespace gsym

} // namespace llvm

#endif // LLVM_DEBUGINFO_GSYM_STRINGTABLE_H