Improve the Python bindings for libclang in a few ways, from Eli

Bendersky. Specifically: 

* Implemented a new function in libclang: clang_isAttribute

* Fixing TranslationUnit.get_includes to only go through the argument
* buffer when it contains something. This fixed a crash on Windows 

* clang_getFileName returns CXString, not char*. Made appropriate
* fixes in cindex.py - now the relevant tests pass and we can see the
* full locations correctly again (previously there was garbage in
* place of the file name) 
* Exposed clang_getCursorDisplayName to the python bindings

llvm-svn: 134460

2 files changed, 15 insertions, 8 deletions

diff --git a/clang/bindings/python/tests/cindex/test_cursor_kind.py b/clang/bindings/python/tests/cindex/test_cursor_kind.py
index bdfa3185583..d7a1cfad8f9 100644
--- a/clang/bindings/python/tests/cindex/test_cursor_kind.py
+++ b/clang/bindings/python/tests/cindex/test_cursor_kind.py
@@ -18,10 +18,14 @@ def test_kind_groups():
 
     for k in CursorKind.get_all_kinds():
         group = [n for n in ('is_declaration', 'is_reference', 'is_expression',
-                             'is_statement', 'is_invalid')
+                             'is_statement', 'is_invalid', 'is_attribute')
                  if getattr(k, n)()]
 
-        if k == CursorKind.TRANSLATION_UNIT:
+        if k in (   CursorKind.TRANSLATION_UNIT,
+                    CursorKind.MACRO_DEFINITION,
+                    CursorKind.MACRO_INSTANTIATION,
+                    CursorKind.INCLUSION_DIRECTIVE,
+                    CursorKind.PREPROCESSING_DIRECTIVE):
             assert len(group) == 0
         else:
             assert len(group) == 1
diff --git a/clang/bindings/python/tests/cindex/test_translation_unit.py b/clang/bindings/python/tests/cindex/test_translation_unit.py
index f130db6aeb0..2e65d9518da 100644
--- a/clang/bindings/python/tests/cindex/test_translation_unit.py
+++ b/clang/bindings/python/tests/cindex/test_translation_unit.py
@@ -58,24 +58,27 @@ def test_unsaved_files_2():
     spellings = [c.spelling for c in tu.cursor.get_children()]
     assert spellings[-1] == 'x'
 
+def normpaths_equal(path1, path2):
+    """ Compares two paths for equality after normalizing them with
+        os.path.normpath
+    """
+    return os.path.normpath(path1) == os.path.normpath(path2)
 
 def test_includes():
     def eq(expected, actual):
         if not actual.is_input_file:
-            return expected[0] == actual.source.name and \
-                   expected[1] == actual.include.name
+            return  normpaths_equal(expected[0], actual.source.name) and \
+                    normpaths_equal(expected[1], actual.include.name)
         else:
-            return expected[1] == actual.include.name
+            return normpaths_equal(expected[1], actual.include.name)
 
     src = os.path.join(kInputsDir, 'include.cpp')
     h1 = os.path.join(kInputsDir, "header1.h")
     h2 = os.path.join(kInputsDir, "header2.h")
     h3 = os.path.join(kInputsDir, "header3.h")
-    inc = [(None, src), (src, h1), (h1, h3), (src, h2), (h2, h3)]
+    inc = [(src, h1), (h1, h3), (src, h2), (h2, h3)]
 
     index = Index.create()
     tu = index.parse(src)
     for i in zip(inc, tu.get_includes()):
         assert eq(i[0], i[1])
-
-