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Fix panic in D208 with multibyte indent #9147

Merged
merged 1 commit into from
Dec 15, 2023
Merged

Fix panic in D208 with multibyte indent #9147

merged 1 commit into from
Dec 15, 2023

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konstin
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@konstin konstin commented Dec 15, 2023

Fix #9080

Example, where [] is a 2 byte non-breaking space:

def f():
    """ Docstring header
^^^^ Real indentation is 4 chars
      docstring body, over-indented
^^^^^^ Over-indentation is 6 - 4 = 2 chars due to this line
   [] []  docstring body 2, further indented
^^^^^ We take these 4 chars/5 bytes to match the docstring ...
     ^^^ ... and these 2 chars/3 bytes to remove the `over_indented_size` ...
        ^^ ... but preserve this real indent

@konstin
Fix panic in D208 with multibyte indent
338151d 
Fix #9080

Example, where `[]` is a 2 byte non-breaking space:
```
def f():
    """
^^^^ Real indentation is 4 chars
      overindented
^^^^^^ overindentation is 6 - 4 = 2 chars due to this line
   [] []  further indented
^^^^^ we take these 4 chars/5 bytes to match the docstring ...
     ^^^ ... and these 2 chars/3 bytes to remove the `over_indented_size` ...
        ^^ ... but preserve this real indent
```
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charliermarsh
charliermarsh approved these changes Dec 15, 2023
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We've had so many fuzzer bugs related to this, strings are really hard.

@charliermarsh charliermarsh added bug Something isn't working fuzzer Surfaced via fuzzing. labels Dec 15, 2023
@charliermarsh charliermarsh merged commit 82731b8 into main Dec 15, 2023
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@charliermarsh charliermarsh deleted the konstin/fix-gh9080 branch December 15, 2023 17:02
@miccal miccal mentioned this pull request Dec 22, 2023
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@charliermarsh charliermarsh charliermarsh approved these changes

@MichaReiser MichaReiser MichaReiser approved these changes

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Rule D208 cause panic
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@konstin @MichaReiser @charliermarsh