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bpo-40334: Improvements to error-handling code in the PEG parser#20003

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pablogsal merged 5 commits intopython:masterfromlysnikolaou:error-improvements
May 17, 2020

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@lysnikolaoulysnikolaou commentedMay 8, 2020•
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Following improvements are implemented in this PR:

  • p->error_indicator is set, in case malloc or realloc fail
  • Avoid memory leaks in the case that realloc fails
  • CallPyErr_NoMemory() instead ofPyErr_Format(), because it
    requires no memory

https://bugs.python.org/issue40334

Following improvements are implemented in this PR:- `p->error_indicator` is set, in case malloc or realloc fail- Avoid memory leaks in the case that realloc fails- Call `PyErr_NoMemory()` instead of `PyErr_Format()`, because it  requires no memory.
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Note to self: This partially conflicts with#19987, so will probably need to merge master after that's landed.

@lysnikolaoulysnikolaou requested review fromgvanrossum andpablogsal and removed request forgvanrossum andpablogsalMay 11, 2020 15:22
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pablogsal commentedMay 11, 2020•
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  • p->error_indicator is set, in case malloc or realloc fail

Do we need to do this? As soon as the rule returns it will go immediately to a if (_res == NULL && PyErr_Occurred()) block, no?

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  • p->error_indicator is set, in case malloc or realloc fail

Do we need to do this? As soon as the rule returns it will go immediately to a if (_res == NULL && PyErr_Occurred()) block, no?

I can't really see this, how exactly is this?

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I can't really see this, how exactly is this?

I have checked again and this only happens when the rule does not returnNULL, so forget what I said :(

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lysnikolaou commentedMay 17, 2020•
edited by bedevere-bot
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Resolved the conflicts so that we can hopefully merge this and closebpo-40334.

Co-authored-by: Pablo Galindo <Pablogsal@gmail.com>
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@lysnikolaou You need to regenerate the parser 😉

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lysnikolaou commentedMay 17, 2020•
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@lysnikolaou You need to regenerate the parser 😉

Done! Sorry, it's getting late..

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Done! Sorry, it's getting late..

No problem. I want to land this and the other PR so they both make it to beta 1 which is next Monday :)

@pablogsalpablogsal merged commit2c8cd06 intopython:masterMay 17, 2020
arturoescaip pushed a commit to arturoescaip/cpython that referenced this pull requestMay 24, 2020
…honGH-20003)The following improvements are implemented in this commit:- `p->error_indicator` is set, in case malloc or realloc fail.- Avoid memory leaks in the case that realloc fails.- Call `PyErr_NoMemory()` instead of `PyErr_Format()`, because it requires no memory.Co-authored-by: Pablo Galindo <Pablogsal@gmail.com>
@lysnikolaoulysnikolaou deleted the error-improvements branchMay 27, 2020 00:28
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