Mercurial > cpython-lru_cache-weakref

diff Python/Python-ast.c @ 80589:ffb2fa900cb7 3.3

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Issue #16546: make ast.YieldFrom argument mandatory.
author Mark Dickinson <mdickinson@enthought.com>
date Sun, 25 Nov 2012 14:36:26 +0000
parents 85cccc38d01c
children f2d557484906 03f92a9f0875
line wrap: on
line diff
--- a/Python/Python-ast.c	Sat Nov 24 20:41:34 2012 +0100
+++ b/Python/Python-ast.c	Sun Nov 25 14:36:26 2012 +0000
@@ -1802,6 +1802,11 @@
 YieldFrom(expr_ty value, int lineno, int col_offset, PyArena *arena)
 {
         expr_ty p;
+        if (!value) {
+                PyErr_SetString(PyExc_ValueError,
+                                "field value is required for YieldFrom");
+                return NULL;
+        }
         p = (expr_ty)PyArena_Malloc(arena, sizeof(*p));
         if (!p)
                 return NULL;
@@ -5431,7 +5436,8 @@
                         Py_XDECREF(tmp);
                         tmp = NULL;
                 } else {
-                        value = NULL;
+                        PyErr_SetString(PyExc_TypeError, "required field \"value\" missing from YieldFrom");
+                        return 1;
                 }
                 *out = YieldFrom(value, lineno, col_offset, arena);
                 if (*out == NULL) goto failed;