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| author | Ezio Melotti <none@none> | 2011-04-15 13:14:04 (GMT) |
|---|---|---|
| committer | Ezio Melotti <none@none> | 2011-04-15 13:14:04 (GMT) |
| commit | c283a85e1214594c50fc07fe42f4ecc2cc3681b4 (patch) | |
| tree | eb0317c751c9bc2b8e8fac668400455560949c13 /Lib | |
| parent | ddaea1c38a8d4d3befe378738a1bd02637347231 (diff) | |
| download | cpython-c283a85e1214594c50fc07fe42f4ecc2cc3681b4.zip cpython-c283a85e1214594c50fc07fe42f4ecc2cc3681b4.tar.gz cpython-c283a85e1214594c50fc07fe42f4ecc2cc3681b4.tar.bz2 | |
Issue #5057: fix a bug in the peepholer that led to non-portable pyc files between narrow and wide builds while optimizing BINARY_SUBSCR on non-BMP chars (e.g. u"\U00012345"[0]).
Diffstat (limited to 'Lib')
| -rw-r--r-- | Lib/test/test_peepholer.py | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/Lib/test/test_peepholer.py b/Lib/test/test_peepholer.py index d05fea6..3e8b7ae 100644 --- a/Lib/test/test_peepholer.py +++ b/Lib/test/test_peepholer.py @@ -137,6 +137,24 @@ class TestTranforms(unittest.TestCase): asm = dis_single('a="x"*1000') self.assertIn('(1000)', asm) + def test_binary_subscr_on_unicode(self): + # valid code get optimized + asm = dis_single('u"foo"[0]') + self.assertIn("(u'f')", asm) + self.assertNotIn('BINARY_SUBSCR', asm) + asm = dis_single('u"\u0061\uffff"[1]') + self.assertIn("(u'\\uffff')", asm) + self.assertNotIn('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) + + def test_folding_of_unaryops_on_constants(self): for line, elem in ( ('`1`', "('1')"), # unary convert |