Duplicate code is one of the most pungent code smells. A rule that is often used is to re-structure code once it is duplicated in three or more places.
Common duplication problems, and corresponding solutions are:
| 1 | <?php |
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| 6 | View Code Duplication | class DiffStart extends DiffLineHandle |
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| 7 | { |
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| 8 | |||
| 9 | public function handle($line) |
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| 21 | public function isValid($line) |
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| 25 | } |
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