traverseda
/
cpython
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

Fix issue 26287: While handling FORMAT_VALUE opcode, the top of stack was being corrupted if an error occurred in PyObject_Format().

This commit is contained in:
Eric V. Smith 2016-02-05 18:23:08 -05:00
parent a3643c280f
commit 135d5f49f6
2 changed files with 13 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

11
Lib/test/test_fstring.py
View File

@ -692,6 +692,17 @@ f'{a * x()}'"""
r"f'{a(4]}'",
])
def test_errors(self):
# see issue 26287
self.assertAllRaise(TypeError, 'non-empty',
[r"f'{(lambda: 0):x}'",
r"f'{(0,):x}'",
])
self.assertAllRaise(ValueError, 'Unknown format code',
[r"f'{1000:j}'",
r"f'{1000:j}'",
])
def test_loop(self):
for i in range(1000):
self.assertEqual(f'i:{i}', 'i:' + str(i))

4
Python/ceval.c
View File

@ -3383,7 +3383,7 @@ PyEval_EvalFrameEx(PyFrameObject *f, int throwflag)
int have_fmt_spec = (oparg & FVS_MASK) == FVS_HAVE_SPEC;
fmt_spec = have_fmt_spec ? POP() : NULL;
value = TOP();
value = POP();
/* See if any conversion is specified. */
switch (which_conversion) {
@ -3426,7 +3426,7 @@ PyEval_EvalFrameEx(PyFrameObject *f, int throwflag)
goto error;
}
SET_TOP(result);
PUSH(result);
DISPATCH();
}