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gh-103046: Display current line correctly for dis.disco() with CACHE entries #103047

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Merged
iritkatriel merged 5 commits into from
Mar 27, 2023
Merged

gh-103046: Display current line correctly for dis.disco() with CACHE entries #103047

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bfaf1d2
Display current line correctly with CACHE
gaogaotiantian Mar 26, 2023
a5cd6d8
📜🤖 Added by blurb_it.
blurb-it[bot] Mar 26, 2023
dfadcd6
Improve cache test to explicitly find CACHE entry
gaogaotiantian Mar 27, 2023
6a8b9ab
Update Misc/NEWS.d/next/Library/2023-03-26-20-54-57.gh-issue-103046.x…
gaogaotiantian Mar 27, 2023
e27ffc2
Add checks for the current line indicator
gaogaotiantian Mar 27, 2023
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Improve cache test to explicitly find CACHE entry
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@gaogaotiantian
gaogaotiantian committed Mar 27, 2023
commit dfadcd69efd981dc614b33c549d2a629163e9cfd
21 changes: 17 additions & 4 deletions Lib/test/test_dis.py
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Original file line number Diff line number Diff line change
Expand Up @@ -1200,13 +1200,26 @@ def test_show_caches(self):

@cpython_only
def test_show_currinstr_with_cache(self):
"""
Make sure that with lasti pointing to CACHE, it still shows the current
line correctly
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"""
def f():
print(a)
# The code above should generate a LOAD_GLOBAL which has CACHE instr after
# Make sure that with lasti pointing to CACHE, it still shows the current
# line correctly
self.assertEqual(self.get_disassembly(f.__code__, lasti=2, wrapper=False),
self.get_disassembly(f.__code__, lasti=4, wrapper=False))
# However, this might change in the future. So we explicitly try to find
# a CACHE entry in the instructions. If we can't do that, fail the test

for inst in dis.get_instructions(f, show_caches=True):
if inst.opname == "CACHE":
op_offset = inst.offset - 2
cache_offset = inst.offset
break
else:
self.fail("Can't find a CACHE entry in the function provided to do the test")

self.assertEqual(self.get_disassembly(f.__code__, lasti=op_offset, wrapper=False),
self.get_disassembly(f.__code__, lasti=cache_offset, wrapper=False))


class DisWithFileTests(DisTests):
Expand Down