From ab85e724103943f94e307581c9af5df525fbf061 Mon Sep 17 00:00:00 2001
From: Jussi Pakkanen <jpakkane@gmail.com>
Date: Sun, 10 Feb 2013 02:01:41 +0200
Subject: Enforce keyword order.

---
 bparser.py     | 2 +-
 interpreter.py | 2 ++
 nodes.py       | 3 +++
 3 files changed, 6 insertions(+), 1 deletion(-)

diff --git a/bparser.py b/bparser.py
index 839ce30..31aa2cf 100755
--- a/bparser.py
+++ b/bparser.py
@@ -174,7 +174,7 @@ def p_args_multiple(t):
 def p_kwargs_multiple(t):
     'args : expression COLON statement COMMA args'
     args = t[5]
-    args.add_kwarg(t[1], t[3])
+    args.set_kwarg(t[1], t[3])
     t[0] = args
 
 def p_args_single_pos(t):
diff --git a/interpreter.py b/interpreter.py
index 7e5a36c..09c7ae0 100755
--- a/interpreter.py
+++ b/interpreter.py
@@ -616,6 +616,8 @@ class Interpreter():
 
     def reduce_arguments(self, args):
         assert(isinstance(args, nodes.Arguments))
+        if args.incorrect_order():
+            raise InvalidArguments('Line %d: all keyword arguments must be after positional arguments.' % args.lineno())
         reduced_pos = [self.reduce_single(arg) for arg in args.arguments]
         reduced_kw = {}
         for key in args.kwargs.keys():
diff --git a/nodes.py b/nodes.py
index b1d26ee..e692c48 100644
--- a/nodes.py
+++ b/nodes.py
@@ -186,6 +186,9 @@ class Arguments(Statement):
 
     def num_kwargs(self):
         return len(self.kwargs)
+    
+    def incorrect_order(self):
+        return self.order_error
 
     def __len__(self):
         return self.num_args() # Fixme
-- 
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