diff options
Diffstat (limited to 'include/clang/Tooling/Refactoring/Rename/SymbolOccurrences.h')
| -rw-r--r-- | include/clang/Tooling/Refactoring/Rename/SymbolOccurrences.h | 91 |
1 files changed, 91 insertions, 0 deletions
diff --git a/include/clang/Tooling/Refactoring/Rename/SymbolOccurrences.h b/include/clang/Tooling/Refactoring/Rename/SymbolOccurrences.h new file mode 100644 index 000000000000..0f853011978f --- /dev/null +++ b/include/clang/Tooling/Refactoring/Rename/SymbolOccurrences.h @@ -0,0 +1,91 @@ +//===--- SymbolOccurrences.h - Clang refactoring library ------------------===// +// +// The LLVM Compiler Infrastructure +// +// This file is distributed under the University of Illinois Open Source +// License. See LICENSE.TXT for details. +// +//===----------------------------------------------------------------------===// + +#ifndef LLVM_CLANG_TOOLING_REFACTOR_RENAME_SYMBOL_OCCURRENCES_H +#define LLVM_CLANG_TOOLING_REFACTOR_RENAME_SYMBOL_OCCURRENCES_H + +#include "clang/Basic/LLVM.h" +#include "clang/Basic/SourceLocation.h" +#include "llvm/ADT/ArrayRef.h" +#include "llvm/ADT/StringRef.h" +#include <vector> + +namespace clang { +namespace tooling { + +class SymbolName; + +/// An occurrence of a symbol in the source. +/// +/// Occurrences can have difference kinds, that describe whether this occurrence +/// is an exact semantic match, or whether this is a weaker textual match that's +/// not guaranteed to represent the exact declaration. +/// +/// A single occurrence of a symbol can span more than one source range. For +/// example, Objective-C selectors can contain multiple argument labels: +/// +/// \code +/// [object selectorPiece1: ... selectorPiece2: ...]; +/// // ^~~ range 0 ~~ ^~~ range 1 ~~ +/// \endcode +/// +/// We have to replace the text in both range 0 and range 1 when renaming the +/// Objective-C method 'selectorPiece1:selectorPiece2'. +class SymbolOccurrence { +public: + enum OccurrenceKind { + /// This occurrence is an exact match and can be renamed automatically. + /// + /// Note: + /// Symbol occurrences in macro arguments that expand to different + /// declarations get marked as exact matches, and thus the renaming engine + /// will rename them e.g.: + /// + /// \code + /// #define MACRO(x) x + ns::x + /// int foo(int var) { + /// return MACRO(var); // var is renamed automatically here when + /// // either var or ns::var is renamed. + /// }; + /// \endcode + /// + /// The user will have to fix their code manually after performing such a + /// rename. + /// FIXME: The rename verifier should notify user about this issue. + MatchingSymbol + }; + + SymbolOccurrence(const SymbolName &Name, OccurrenceKind Kind, + ArrayRef<SourceLocation> Locations); + + SymbolOccurrence(SymbolOccurrence &&) = default; + SymbolOccurrence &operator=(SymbolOccurrence &&) = default; + + OccurrenceKind getKind() const { return Kind; } + + ArrayRef<SourceRange> getNameRanges() const { + if (MultipleRanges) { + return llvm::makeArrayRef(MultipleRanges.get(), + RangeOrNumRanges.getBegin().getRawEncoding()); + } + return RangeOrNumRanges; + } + +private: + OccurrenceKind Kind; + std::unique_ptr<SourceRange[]> MultipleRanges; + SourceRange RangeOrNumRanges; +}; + +using SymbolOccurrences = std::vector<SymbolOccurrence>; + +} // end namespace tooling +} // end namespace clang + +#endif // LLVM_CLANG_TOOLING_REFACTOR_RENAME_SYMBOL_OCCURRENCES_H |
