Index_Internal.h revision e397bf1bd90cfceb0166606ebcd2580b7671a828 
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_LIBCLANG_INDEX_INTERNAL_H
15#define LLVM_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
33typedef 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.
44enum 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