llvm/clang/include/clang/Lex/TokenConcatenation.h

//===--- TokenConcatenation.h - Token Concatenation Avoidance ---*- 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 defines the TokenConcatenation class.
//
//===----------------------------------------------------------------------===//

#ifndef LLVM_CLANG_LEX_TOKENCONCATENATION_H
#define LLVM_CLANG_LEX_TOKENCONCATENATION_H

#include "clang/Basic/TokenKinds.h"

namespace clang {
  class Preprocessor;
  class Token;

  /// TokenConcatenation class, which answers the question of
  ///   "Is it safe to emit two tokens without a whitespace between them, or
  ///    would that cause implicit concatenation of the tokens?"
  ///
  /// For example, it emitting two identifiers "foo" and "bar" next to each
  /// other would cause the lexer to produce one "foobar" token.  Emitting "1"
  /// and ")" next to each other is safe.
  ///
  class TokenConcatenation { … };
  } // end clang namespace

#endif