py3k : introduce Nonlocal node

3 files changed, 15 insertions, 2 deletions

diff --git a/as_string.py b/as_string.py
index 02a028a0..76051111 100644
--- a/as_string.py
+++ b/as_string.py
@@ -409,6 +409,10 @@ class AsStringVisitor3k(AsStringVisitor):
             excs = 'except'
         return '%s:\n%s' % (excs, self._stmt_list(node.body))
 
+    def visit_nonlocal(self, node):
+        """return an astng.Nonlocal node as string"""
+        return 'nonlocal %s' % ', '.join(node.names)
+
     def visit_raise(self, node):
         """return an astng.Raise node as string"""
         if node.exc:
diff --git a/node_classes.py b/node_classes.py
index 133836da..95a3a36b 100644
--- a/node_classes.py
+++ b/node_classes.py
@@ -656,6 +656,15 @@ class List(NodeNG, Instance, ParentAssignTypeMixin):
         return self.elts
 
 
+class Nonlocal(StmtMixIn, NodeNG):
+    """class representing a Nonlocal node"""
+
+    def __init__(self, names):
+        self.names = names
+
+    def _infer_name(self, frame, name):
+        return name
+
 
 class Pass(StmtMixIn, NodeNG):
     """class representing a Pass node"""
diff --git a/nodes.py b/nodes.py
index afb6664c..8ce57d81 100644
--- a/nodes.py
+++ b/nodes.py
@@ -56,7 +56,7 @@ from logilab.astng.node_classes import Arguments, AssAttr, Assert, Assign, \
     Comprehension, Const, Continue, Decorators, DelAttr, DelName, Delete, \
     Dict, Discard, Ellipsis, EmptyNode, ExceptHandler, Exec, ExtSlice, For, \
     From, Getattr, Global, If, IfExp, Import, Index, Keyword, \
-    List, Name, Pass, Print, Raise, Return, Set, Slice, Starred, Subscript, \
+    List, Name, Nonlocal, Pass, Print, Raise, Return, Set, Slice, Starred, Subscript, \
     TryExcept, TryFinally, Tuple, UnaryOp, While, With, Yield, \
     const_factory
 from logilab.astng.scoped_nodes import Module, GenExpr, Lambda, DictComp, \
@@ -74,7 +74,7 @@ ALL_NODE_CLASSES = (
     If, IfExp, Import, Index,
     Keyword,
     Lambda, List, ListComp,
-    Name,
+    Name, Nonlocal,
     Module,
     Pass, Print,
     Raise, Return,