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  1. //===--- Lookup.h - Framework for clang refactoring tools --*- C++ -*------===//
  2. //
  3. // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
  4. // See https://llvm.org/LICENSE.txt for license information.
  5. // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
  6. //
  7. //===----------------------------------------------------------------------===//
  8. //
  9. //  This file defines helper methods for clang tools performing name lookup.
  10. //
  11. //===----------------------------------------------------------------------===//
  12.  
  13. #ifndef LLVM_CLANG_TOOLING_REFACTORING_LOOKUP_H
  14. #define LLVM_CLANG_TOOLING_REFACTORING_LOOKUP_H
  15.  
  16. #include "clang/Basic/LLVM.h"
  17. #include "clang/Basic/SourceLocation.h"
  18. #include <string>
  19.  
  20. namespace clang {
  21.  
  22. class DeclContext;
  23. class NamedDecl;
  24. class NestedNameSpecifier;
  25.  
  26. namespace tooling {
  27.  
  28. /// Emulate a lookup to replace one nested name specifier with another using as
  29. /// few additional namespace qualifications as possible.
  30. ///
  31. /// This does not perform a full C++ lookup so ADL will not work.
  32. ///
  33. /// \param Use The nested name to be replaced.
  34. /// \param UseLoc The location of name to be replaced.
  35. /// \param UseContext The context in which the nested name is contained. This
  36. ///                   will be used to minimize namespace qualifications.
  37. /// \param FromDecl The declaration to which the nested name points.
  38. /// \param ReplacementString The replacement nested name. Must be fully
  39. ///                          qualified including a leading "::".
  40. /// \returns The new name to be inserted in place of the current nested name.
  41. std::string replaceNestedName(const NestedNameSpecifier *Use,
  42.                               SourceLocation UseLoc,
  43.                               const DeclContext *UseContext,
  44.                               const NamedDecl *FromDecl,
  45.                               StringRef ReplacementString);
  46.  
  47. } // end namespace tooling
  48. } // end namespace clang
  49.  
  50. #endif // LLVM_CLANG_TOOLING_REFACTORING_LOOKUP_H
  51.