updated namespace filters to support also using a namespace

2 files changed, 11 insertions, 2 deletions

diff --git a/qface/helper/qtcpp.py b/qface/helper/qtcpp.py
index 213abfe..7e8f3ca 100644
--- a/qface/helper/qtcpp.py
+++ b/qface/helper/qtcpp.py
@@ -107,12 +107,18 @@ class Filters(object):
 
     @staticmethod
     def open_ns(symbol):
-        # 'namespace x { y {'
+        ''' generates a open namespace from symbol namespace x { y { z {'''
         blocks = ['{0} {{'.format(x) for x in symbol.module.name_parts]
         return 'namespace {0}'.format(str.join(' ', blocks))
 
     @staticmethod
     def close_ns(symbol):
-        # '} }'
+        '''generates a closing names statement from a symbol'''
         return ' '.join(['}' for x in symbol.module.name_parts])
 
+    @staticmethod
+    def using_ns(symbol):
+        '''generates a using namespace x::y::z statement from a symbol'''
+        id = '::'.join(symbol.module.name_parts)
+        return 'using namespace {0}'.format(id)
+
diff --git a/tests/test_qtcpp_helper.py b/tests/test_qtcpp_helper.py
index 2c2e20e..535905a 100644
--- a/tests/test_qtcpp_helper.py
+++ b/tests/test_qtcpp_helper.py
@@ -209,3 +209,6 @@ def test_namespace():
 
     ns = qtcpp.Filters.close_ns(module)
     assert ns == '} }'
+
+    ns = qtcpp.Filters.using_ns(module)
+    assert ns == 'using namespace org::example'