[PATCH] (2/?) Python interface improvements: fix possible crash

[ZyX]

# HG changeset patch
# User ZyX <kp-...@ya.ru>
# Date 1366489636 -14400
# Branch python-extended-2
# Node ID 4cacac640f4a6dfa52759a2c18b50afcd3e39627
# Parent  ef93c86c326eaf3ff86a6f1a5a85a0efac52621f
Fix possible crash (PyMapping_Items not necessary succeeds)

diff -r ef93c86c326e -r 4cacac640f4a src/if_py_both.h
--- a/src/if_py_both.h  Sat Apr 20 20:23:51 2013 +0400
+++ b/src/if_py_both.h  Sun Apr 21 00:27:16 2013 +0400
@@ -737,7 +737,8 @@
     tv->v_type = VAR_DICT;
     tv->vval.v_dict = d;
 
-    list = PyMapping_Items(obj);
+    if (!(list = PyMapping_Items(obj)))
+       return -1;
     lsize = PyList_Size(list);
     while (lsize--)
     {

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*** /tmp/extdiff.XMXOQk/vim.ef93c86c326e/src/if_py_both.h	2013-04-23 21:28:43.463891728 +0400
--- vim.4cacac640f4a/src/if_py_both.h	2013-04-23 21:28:43.466891641 +0400
***************
*** 737,743 ****
      tv->v_type = VAR_DICT;
      tv->vval.v_dict = d;
  
!     list = PyMapping_Items(obj);
      lsize = PyList_Size(list);
      while (lsize--)
      {
--- 737,744 ----
      tv->v_type = VAR_DICT;
      tv->vval.v_dict = d;
  
!     if (!(list = PyMapping_Items(obj)))
! 	return -1;
      lsize = PyList_Size(list);
      while (lsize--)
      {