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1 //===- CXString.h - Routines for manipulating CXStrings -------------------===//
2 //
3 //                     The LLVM Compiler Infrastructure
4 //
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
7 //
8 //===----------------------------------------------------------------------===//
9 //
10 // This file defines routines for manipulating CXStrings.
11 //
12 //===----------------------------------------------------------------------===//
13 
14 #ifndef LLVM_CLANG_TOOLS_LIBCLANG_INDEX_INTERNAL_H
15 #define LLVM_CLANG_TOOLS_LIBCLANG_INDEX_INTERNAL_H
16 
17 #include "clang-c/Index.h"
18 
19 #ifndef __has_feature
20 #define __has_feature(x) 0
21 #endif
22 
23 #if __has_feature(blocks)
24 
25 #define INVOKE_BLOCK2(block, arg1, arg2) block(arg1, arg2)
26 
27 #else
28 // If we are compiled with a compiler that doesn't have native blocks support,
29 // define and call the block manually.
30 
31 #define INVOKE_BLOCK2(block, arg1, arg2) block->invoke(block, arg1, arg2)
32 
33 typedef struct _CXCursorAndRangeVisitorBlock {
34   void *isa;
35   int flags;
36   int reserved;
37   enum CXVisitorResult (*invoke)(_CXCursorAndRangeVisitorBlock *,
38                                  CXCursor, CXSourceRange);
39 } *CXCursorAndRangeVisitorBlock;
40 
41 #endif // !__has_feature(blocks)
42 
43 /// \brief The result of comparing two source ranges.
44 enum RangeComparisonResult {
45   /// \brief Either the ranges overlap or one of the ranges is invalid.
46   RangeOverlap,
47 
48   /// \brief The first range ends before the second range starts.
49   RangeBefore,
50 
51   /// \brief The first range starts after the second range ends.
52   RangeAfter
53 };
54 
55 #endif
56