[pypy-commit] pypy virtual-arguments: this is always positive

[fijal]

Author: Maciej Fijalkowski <fijall at gmail.com>
Branch: virtual-arguments
Changeset: r56176:331a52aa6f9e
Date: 2012-07-18 17:32 +0200
http://bitbucket.org/pypy/pypy/changeset/331a52aa6f9e/

Log:	this is always positive

diff --git a/pypy/interpreter/pyframe.py b/pypy/interpreter/pyframe.py
--- a/pypy/interpreter/pyframe.py
+++ b/pypy/interpreter/pyframe.py
@@ -59,7 +59,9 @@
         assert isinstance(code, pycode.PyCode)
         self.pycode = code
         eval.Frame.__init__(self, space, w_globals)
-        self.locals_stack_w = [None] * (code.co_nlocals + code.co_stacksize)
+        size = (code.co_nlocals + code.co_stacksize)
+        assert size >= 0
+        self.locals_stack_w = [None] * size
         self.valuestackdepth = code.co_nlocals
         self.lastblock = None
         make_sure_not_resized(self.locals_stack_w)