#5057: the peepholer no longer optimizes subscription on unicode literals (e.g. u"foo"[0]) in order to produce compatible pyc files between narrow and wide builds.
diff --git a/Lib/test/test_peepholer.py b/Lib/test/test_peepholer.py
index 3e8b7ae..7e05f49 100644
--- a/Lib/test/test_peepholer.py
+++ b/Lib/test/test_peepholer.py
@@ -138,21 +138,22 @@
self.assertIn('(1000)', asm)
def test_binary_subscr_on_unicode(self):
- # valid code get optimized
+ # unicode strings don't get optimized
asm = dis_single('u"foo"[0]')
- self.assertIn("(u'f')", asm)
- self.assertNotIn('BINARY_SUBSCR', asm)
+ self.assertNotIn("(u'f')", asm)
+ self.assertIn('BINARY_SUBSCR', asm)
asm = dis_single('u"\u0061\uffff"[1]')
- self.assertIn("(u'\\uffff')", asm)
- self.assertNotIn('BINARY_SUBSCR', asm)
+ self.assertNotIn("(u'\\uffff')", asm)
+ self.assertIn('BINARY_SUBSCR', asm)
- # invalid code doesn't get optimized
# out of range
asm = dis_single('u"fuu"[10]')
self.assertIn('BINARY_SUBSCR', asm)
# non-BMP char (see #5057)
asm = dis_single('u"\U00012345"[0]')
self.assertIn('BINARY_SUBSCR', asm)
+ asm = dis_single('u"\U00012345abcdef"[3]')
+ self.assertIn('BINARY_SUBSCR', asm)
def test_folding_of_unaryops_on_constants(self):