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Add RegexpNode regopt predicates #20

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merged 3 commits into from
Jun 5, 2020

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owst
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@owst owst commented Jun 4, 2020

owst added a commit to owst/rubocop that referenced this pull request Jun 4, 2020
@marcandre
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Looks great!
Would you also add the "o" option please?

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owst commented Jun 4, 2020

Oops - accidental omission, thanks @marcandre !

I've never used the o option before, and I struggled to find an example where it causes a change in behaviour. I finally came up with:

[1] pry(main)> Array.new(3) { |i| /#{i}/ }
=> [/0/, /1/, /2/]
[2] pry(main)> Array.new(3) { |i| /#{i}/o }
=> [/0/, /0/, /0/]

even then, I'm not sure when this would be useful!

The Perl docs say:

o - pretend to optimize your code, but actually introduce bugs

😄

@bbatsov bbatsov merged commit e98d015 into rubocop:master Jun 5, 2020
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bbatsov commented Jun 5, 2020

Thanks!

@marcandre
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Oh, that actually breaks RuboCop. Probably a naming conflict with multiline?. I'm reopening #5

@owst
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owst commented Jun 7, 2020

Good catch @marcandre and 👍 for running RuboCop specs too

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3 participants