Author: Stephan <step...@stzal.com>
Branch:
Changeset: r307:49538e407502
Date: 2012-12-11 12:19 +0100
http://bitbucket.org/pypy/lang-js/changeset/49538e407502/
Log: do not allow this in for-in
diff --git a/js/execution.py b/js/execution.py
--- a/js/execution.py
+++ b/js/execution.py
@@ -29,8 +29,15 @@
class JsException(Exception):
+ message = u'Exception'
+
+ def __init__(self, message=None):
+ if message is not None:
+ assert isinstance(message, unicode)
+ self.message = message
+
def _msg(self):
- return u'Exception'
+ return self.message
def msg(self):
from js.jsobj import _w
diff --git a/js/operations.py b/js/operations.py
--- a/js/operations.py
+++ b/js/operations.py
@@ -4,7 +4,7 @@
Implements the javascript operations nodes for the interpretation tree
"""
-from js.execution import JsTypeError
+from js.execution import JsTypeError, JsException
from pypy.rlib.unroll import unrolling_iterable
from pypy.rlib.objectmodel import enforceargs
@@ -989,6 +989,8 @@
bytecode.emit('NEXT_ITERATOR')
# store iterrator value into approperiate place
+ if isinstance(left_expr, This):
+ raise JsException(u'Invalid left-hand side in for-in')
if isinstance(left_expr, Identifier):
name = left_expr.name
index = left_expr.index
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