8000 GH-94739: Mark stacks in exception handlers. by markshannon · Pull Request #94958 · python/cpython · GitHub
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GH-94739: Mark stacks in exception handlers. #94958

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Merged
merged 7 commits into from
Jul 18, 2022
Merged

GH-94739: Mark stacks in exception handlers. #94958

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2ce07b3
Mark stacks of exception handling blocks for setting frame.f_lineno i…
markshannon Jul 18, 2022
cd7371a
Fix typos.
markshannon Jul 18, 2022
ab358d2
Move common code to shared header.
markshannon Jul 18, 2022
0045098
Add news
markshannon Jul 18, 2022
6744151
Narrow scope of variable
markshannon Jul 18, 2022
71342f1
Make it clearer that 0 == empty stack.
markshannon Jul 18, 2022
f167292
Assert exception table entries are in range.
markshannon Jul 18, 2022
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Assert exception table entries are in range.
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@markshannon
markshannon committed Jul 18, 2022
commit f16729241e49e982c47312a043150e2ba411d421
3 changes: 3 additions & 0 deletions Objects/frameobject.c
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Original file line number Diff line number Diff line change
Expand Up @@ -442,8 +442,11 @@ mark_stacks(PyCodeObject *code_obj, int len)
while (scan < end) {
int start_offset, size, handler;
scan = parse_varint(scan, &start_offset);
assert(start_offset >= 0 && start_offset < len);
scan = parse_varint(scan, &size);
assert(size >= 0 && start_offset+size <= len);
scan = parse_varint(scan, &handler);
assert(handler >= 0 && handler < len);
int depth_and_lasti;
scan = parse_varint(scan, &depth_and_lasti);
int level = depth_and_lasti >> 1;
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