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No need to emit co_lnotab item when both offsets are zeros.

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r60579 broke a test test_compile, which seems to test an "implementation detail" IMO.

Also test that this correction does not impact the debugger.
This commit is contained in:
Amaury Forgeot d'Arc 2008-02-04 23:51:55 +00:00
parent dcf84003c1
commit bc212104e4
2 changed files with 12 additions and 0 deletions
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9
Lib/test/test_trace.py
View file

@ -352,6 +352,15 @@ class TraceTestCase(unittest.TestCase):
(3, 'line'), (3, 'line'),
(3, 'return')]) (3, 'return')])
def test_16_blank_lines(self):
exec("def f():\n" + "\n" * 256 + " pass")
self.run_and_compare(
f,
[(0, 'call'),
(257, 'line'),
(257, 'return')])
class RaisingTraceFuncTestCase(unittest.TestCase): class RaisingTraceFuncTestCase(unittest.TestCase):
def trace(self, frame, event, arg): def trace(self, frame, event, arg):
"""A trace function that raises an exception in response to a """A trace function that raises an exception in response to a

3
Python/compile.c
View file

@ -4191,6 +4191,9 @@ assemble_lnotab(struct assembler *a, struct instr *i)
assert(d_bytecode >= 0); assert(d_bytecode >= 0);
assert(d_lineno >= 0); assert(d_lineno >= 0);
if(d_bytecode == 0 && d_lineno == 0)
return 1;
if (d_bytecode > 255) { if (d_bytecode > 255) {
int j, nbytes, ncodes = d_bytecode / 255; int j, nbytes, ncodes = d_bytecode / 255;
nbytes = a->a_lnotab_off + 2 * ncodes; nbytes = a->a_lnotab_off + 2 * ncodes;