bpo-40661: Fix segfaults when parsing invalid input#20159
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gvanrossum wants to merge 1 commit intomasterfrom
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bpo-40661: Fix segfaults when parsing invalid input#20159gvanrossum wants to merge 1 commit intomasterfrom
gvanrossum wants to merge 1 commit intomasterfrom
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Fixes bpo-40661. (In fact this just is the patch from @pablogsal from that issue.) Note that for an extreme benchmark (xxl.py) this caused a 40% slowdown on my Mac. However for an "average" benchmark (stdlib) there was no significant difference.
gvanrossum
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lysnikolaou
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May 17, 2020
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| self.print("if (p->error_indicator == 1 || PyErr_Occurred()) {") | ||
| with self.indent(): | ||
| self.print("p->error_indicator = 1;") | ||
| self.print("return NULL;") | ||
| self.print("}") |
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I'd actually move this within the scope block of the alternative (after the with self.indent() below).
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Lysandros, can you take over responsibility for this PR? I'm just out of
energy for this.
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Yes, of course! Should we close it and open a new one, since I can't push to a branch of the upstream repo? |
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Sure.
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Ok, closing. |
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To follow up: I believe this may have been an exaggerated outcome because I built with debug flags on (and had forgotten about it). |
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Fixes bpo-40661. (In fact this just is the patch from @pablogsal from
that issue.)
Note that for an extreme benchmark (xxl.py) this caused a 40% slowdown
on my Mac. However for an "average" benchmark (stdlib) there was no
significant difference.
https://bugs.python.org/issue40661