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Index_Internal.h revision 1.1 
      1 //===- CXString.h - Routines for manipulating CXStrings -------------------===//
      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 routines for manipulating CXStrings.
     10 //
     11 //===----------------------------------------------------------------------===//
     12 
     13 #ifndef LLVM_CLANG_TOOLS_LIBCLANG_INDEX_INTERNAL_H
     14 #define LLVM_CLANG_TOOLS_LIBCLANG_INDEX_INTERNAL_H
     15 
     16 #include "clang-c/Index.h"
     17 
     18 #ifndef __has_feature
     19 #define __has_feature(x) 0
     20 #endif
     21 
     22 #if __has_feature(blocks)
     23 
     24 #define INVOKE_BLOCK2(block, arg1, arg2) block(arg1, arg2)
     25 
     26 #else
     27 // If we are compiled with a compiler that doesn't have native blocks support,
     28 // define and call the block manually.
     29 
     30 #define INVOKE_BLOCK2(block, arg1, arg2) block->invoke(block, arg1, arg2)
     31 
     32 typedef struct _CXCursorAndRangeVisitorBlock {
     33   void *isa;
     34   int flags;
     35   int reserved;
     36   enum CXVisitorResult (*invoke)(_CXCursorAndRangeVisitorBlock *,
     37                                  CXCursor, CXSourceRange);
     38 } *CXCursorAndRangeVisitorBlock;
     39 
     40 #endif // !__has_feature(blocks)
     41 
     42 /// The result of comparing two source ranges.
     43 enum RangeComparisonResult {
     44   /// Either the ranges overlap or one of the ranges is invalid.
     45   RangeOverlap,
     46 
     47   /// The first range ends before the second range starts.
     48   RangeBefore,
     49 
     50   /// The first range starts after the second range ends.
     51   RangeAfter
     52 };
     53 
     54 #endif
     55