[pypy-commit] cffi default: Bug, test, fix

[arigo]

Author: Armin Rigo <arigo at tunes.org>
Branch: 
Changeset: r644:79c684e30e94
Date: 2012-07-14 18:30 +0200
http://bitbucket.org/cffi/cffi/changeset/79c684e30e94/

Log:	Bug, test, fix

diff --git a/c/_cffi_backend.c b/c/_cffi_backend.c
--- a/c/_cffi_backend.c
+++ b/c/_cffi_backend.c
@@ -1442,6 +1442,11 @@
        negative indexes to be corrected automatically */
     if (c == NULL && PyErr_Occurred())
         return -1;
+    if (v == NULL) {
+        PyErr_SetString(PyExc_TypeError,
+                        "'del x[n]' not supported for cdata objects");
+        return -1;
+    }
     return convert_from_object(c, ctitem, v);
 }
 
diff --git a/c/test_c.py b/c/test_c.py
--- a/c/test_c.py
+++ b/c/test_c.py
@@ -1563,3 +1563,9 @@
     BDouble = new_primitive_type("double")
     BDoubleP = new_pointer_type(BDouble)
     py.test.raises(TypeError, newp, BDoubleP, "foobar")
+
+def test_bug_delitem():
+    BChar = new_primitive_type("char")
+    BCharP = new_pointer_type(BChar)
+    x = newp(BCharP)
+    py.test.raises(TypeError, "del x[0]")