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Extra: add sniff to discourage the use of "long" closures #2311

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Extra: add sniff to discourage the use of "long" closures #2311

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Commits on Jul 20, 2023

  1. Extra: add sniff to discourage the use of "long" closures 

    Loosely related to the discussion in 1486.

This adds a new sniff to the `WordPress-Extra` ruleset to discourage (`warning`) the use of "long" closures.

By default, the sniff will _warn_ when a closure exceeds 5 lines and throw an error when the closure exceeds 8 lines, though these numbers are configurable.
By default, the sniff will only count code lines when determining the closure length and will ignore comment-only and blank lines.

As the intention is to only discourage long closures, the error has been disabled (by setting it to a really high value).

Ref: PHPCSStandards/PHPCSExtra 240

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:point_right: To discuss: should the value for the `recommendedLines` property stay at `5` (sniff default) or do we want to use a different value ?
    @jrfnl
    jrfnl committed Jul 20, 2023
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