fix some descriptor methods

jedi/evaluate.py

@@ -416,10 +416,8 @@ def check_getattr(inst, name_str):
     # str is important to lose the NamePart!
     module = builtin.Builtin.scope
     name = pr.Call(module, str(name_str), pr.Call.STRING, (0, 0), inst)
-    stmt = pr.Statement(module, 'XXX code', [], [], [], [], (0, 0), None)
-    stmt._commands = [name]
     try:
-        result = inst.execute_subscope_by_name('__getattr__', [stmt])
+        result = inst.execute_subscope_by_name('__getattr__', [name])
     except KeyError:
         pass
     if not result:
@@ -428,7 +426,7 @@ def check_getattr(inst, name_str):
         # could be practical and the jedi would return wrong types. If
         # you ever have something, let me know!
         try:
-            result = inst.execute_subscope_by_name('__getattribute__', [stmt])
+            result = inst.execute_subscope_by_name('__getattribute__', [name])
         except KeyError:
             pass
     return result

jedi/evaluate_representation.py

@@ -298,9 +298,9 @@ class Class(use_metaclass(cache.CachedMetaClass, pr.Base)):
         return self.base.name
 
     def __getattr__(self, name):
-        if name not in ['start_pos', 'end_pos', 'parent', 'subscopes',
-                    'get_imports', 'get_parent_until', 'docstr', 'asserts']:
-            raise AttributeError("Don't touch this (%s)!" % name)
+        if name not in ['start_pos', 'end_pos', 'parent', 'asserts', 'docstr',
+                'get_imports', 'get_parent_until', 'get_code', 'subscopes']:
+            raise AttributeError("Don't touch this: %s of %s !" % (name, self))
         return getattr(self.base, name)
 
     def __repr__(self):
@@ -630,6 +630,16 @@ class Execution(Executable):
         def iterate():
             # `var_args` is typically an Array, and not a list.
             for stmt in self.var_args:
+                if not isinstance(stmt, pr.Statement):
+                    if stmt is None:
+                        yield None, None
+                        continue
+                    old = stmt
+                    # generate a statement if it's not already one.
+                    module = builtin.Builtin.scope
+                    stmt = pr.Statement(module, 'XXX code', [], [], [], [], (0, 0), None)
+                    stmt._commands = [old]
+
                 # *args
                 if stmt.get_commands()[0] == '*':
                     arrays = evaluate.follow_call_list(stmt.get_commands()[1:])