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  1. //===--- SelectorLocationsKind.h - Kind of selector locations ---*- 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. // Describes whether the identifier locations for a selector are "standard"
  10. // or not.
  11. //
  12. //===----------------------------------------------------------------------===//
  13.  
  14. #ifndef LLVM_CLANG_AST_SELECTORLOCATIONSKIND_H
  15. #define LLVM_CLANG_AST_SELECTORLOCATIONSKIND_H
  16.  
  17. #include "clang/Basic/LLVM.h"
  18.  
  19. namespace clang {
  20.   class Selector;
  21.   class SourceLocation;
  22.   class Expr;
  23.   class ParmVarDecl;
  24.  
  25. /// Whether all locations of the selector identifiers are in a
  26. /// "standard" position.
  27. enum SelectorLocationsKind {
  28.   /// Non-standard.
  29.   SelLoc_NonStandard = 0,
  30.  
  31.   /// For nullary selectors, immediately before the end:
  32.   ///    "[foo release]" / "-(void)release;"
  33.   /// Or immediately before the arguments:
  34.   ///    "[foo first:1 second:2]" / "-(id)first:(int)x second:(int)y;
  35.   SelLoc_StandardNoSpace = 1,
  36.  
  37.   /// For nullary selectors, immediately before the end:
  38.   ///    "[foo release]" / "-(void)release;"
  39.   /// Or with a space between the arguments:
  40.   ///    "[foo first: 1 second: 2]" / "-(id)first: (int)x second: (int)y;
  41.   SelLoc_StandardWithSpace = 2
  42. };
  43.  
  44. /// Returns true if all \p SelLocs are in a "standard" location.
  45. SelectorLocationsKind hasStandardSelectorLocs(Selector Sel,
  46.                                               ArrayRef<SourceLocation> SelLocs,
  47.                                               ArrayRef<Expr *> Args,
  48.                                               SourceLocation EndLoc);
  49.  
  50. /// Get the "standard" location of a selector identifier, e.g:
  51. /// For nullary selectors, immediately before ']': "[foo release]"
  52. ///
  53. /// \param WithArgSpace if true the standard location is with a space apart
  54. /// before arguments: "[foo first: 1 second: 2]"
  55. /// If false: "[foo first:1 second:2]"
  56. SourceLocation getStandardSelectorLoc(unsigned Index,
  57.                                       Selector Sel,
  58.                                       bool WithArgSpace,
  59.                                       ArrayRef<Expr *> Args,
  60.                                       SourceLocation EndLoc);
  61.  
  62. /// Returns true if all \p SelLocs are in a "standard" location.
  63. SelectorLocationsKind hasStandardSelectorLocs(Selector Sel,
  64.                                               ArrayRef<SourceLocation> SelLocs,
  65.                                               ArrayRef<ParmVarDecl *> Args,
  66.                                               SourceLocation EndLoc);
  67.  
  68. /// Get the "standard" location of a selector identifier, e.g:
  69. /// For nullary selectors, immediately before ']': "[foo release]"
  70. ///
  71. /// \param WithArgSpace if true the standard location is with a space apart
  72. /// before arguments: "-(id)first: (int)x second: (int)y;"
  73. /// If false: "-(id)first:(int)x second:(int)y;"
  74. SourceLocation getStandardSelectorLoc(unsigned Index,
  75.                                       Selector Sel,
  76.                                       bool WithArgSpace,
  77.                                       ArrayRef<ParmVarDecl *> Args,
  78.                                       SourceLocation EndLoc);
  79.  
  80. } // end namespace clang
  81.  
  82. #endif
  83.