[cfe-dev] Inconsistent cursors returned for inclusion statements

[waveform]

When retrieving a cursor at a given offset the result is inconsistent when
the offset is within an #include statement
For both below examples I would expect the cursor kind for line 1, column 16
to be CXCursor_InclusionDirective

However,
  clang -lclang -L/usr/lib/llvm -o test test.c

A  ./test example1.c 1 16
B  ./test example2.c 1 16
C  ./test example2.c 2 16
 
Produces:
A  'string.h' (inclusion directive)
B  '' (NoDeclFound)
C  'string.h' (inclusion directive)

Further investigation suggests the exact ordering of the inclusion
directives seems to make a difference and
the inconsistent behaviour affects only the filename and occurs only with
<foo.h> and never with "foo.h"

uname -smr
   Linux 3.11.10-200.fc19.i686.PAE i686
   
clang --version
   clang version 3.3 (tags/RELEASE_33/final)

Any thoughts?

Dave

# example1.c
-------------------
#include "string.h"

# example2.c
-------------------
#include <string.h>
#include <string.h>

# test.c
-------------------
#include <stdlib.h>
#include <clang-c/Index.h>

int main(int argc, char *argv[]) {
  CXIndex idx;
  CXTranslationUnit tr;
  CXFile f;
  CXSourceLocation l;
  CXCursor c;

  idx = clang_createIndex(0, 0);
//tr  = clang_createTranslationUnitFromSourceFile(idx, argv[1], 0, NULL, 0,
NULL);
  tr  = clang_parseTranslationUnit(idx, argv[1], NULL, 0, NULL, 0,
CXTranslationUnit_DetailedPreprocessingRecord);
  f   = clang_getFile(tr, argv[1]);
  l   = clang_getLocation(tr, f, atoi(argv[2]), atoi(argv[3]));
  c   = clang_getCursor(tr, l);

  CXString str1, str2;
  str1 = clang_getCursorSpelling(c);
  str2 = clang_getCursorKindSpelling(clang_getCursorKind(c));
 
  fprintf(stderr, "'%s' (%s)\n", clang_getCString(str1),
clang_getCString(str2));

  return 0;
} 



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