Vendor import of clang trunk r154661:

http://llvm.org/svn/llvm-project/cfe/trunk@r154661

1 files changed, 65 insertions, 0 deletions

diff --git a/bindings/python/tests/cindex/util.py b/bindings/python/tests/cindex/util.py
new file mode 100644
index 0000000..388b269
--- /dev/null
+++ b/bindings/python/tests/cindex/util.py
@@ -0,0 +1,65 @@
+# This file provides common utility functions for the test suite.
+
+from clang.cindex import Cursor
+from clang.cindex import Index
+
+def get_tu(source, lang='c', all_warnings=False):
+    """Obtain a translation unit from source and language.
+
+    By default, the translation unit is created from source file "t.<ext>"
+    where <ext> is the default file extension for the specified language. By
+    default it is C, so "t.c" is the default file name.
+
+    Supported languages are {c, cpp, objc}.
+
+    all_warnings is a convenience argument to enable all compiler warnings.
+    """
+    name = 't.c'
+    if lang == 'cpp':
+        name = 't.cpp'
+    elif lang == 'objc':
+        name = 't.m'
+    elif lang != 'c':
+        raise Exception('Unknown language: %s' % lang)
+
+    args = []
+    if all_warnings:
+        args = ['-Wall', '-Wextra']
+
+    index = Index.create()
+    tu = index.parse(name, args=args, unsaved_files=[(name, source)])
+    assert tu is not None
+    return tu
+
+def get_cursor(source, spelling):
+    """Obtain a cursor from a source object.
+
+    This provides a convenient search mechanism to find a cursor with specific
+    spelling within a source. The first argument can be either a
+    TranslationUnit or Cursor instance.
+
+    If the cursor is not found, None is returned.
+    """
+    children = []
+    if isinstance(source, Cursor):
+        children = source.get_children()
+    else:
+        # Assume TU
+        children = source.cursor.get_children()
+
+    for cursor in children:
+        if cursor.spelling == spelling:
+            return cursor
+
+        # Recurse into children.
+        result = get_cursor(cursor, spelling)
+        if result is not None:
+            return result
+
+    return None
+
+
+__all__ = [
+    'get_cursor',
+    'get_tu',
+]