wp-includes/Text/Diff.php:355class Text_Diff_Op_copy extends Text_Diff_Op { /** * PHP5 constructor. */ function __construct( $orig, $final = false ) { if (!is_array($final)) { $final = $orig; } $this->orig = $orig; $this->final = $final; } /** * PHP4 constructor. */ public function Text_Diff_Op_copy( $orig, $final = false ) { self::__construct( $orig, $final ); } function &reverse() { $reverse = new Text_Diff_Op_copy($this->final, $this->orig); return $reverse; } }Unchanged from 6.7.7 through 7.1.0.
Signature, return type and hooks compared across 5 parsed releases.
src/wp-includes/Text/Diff.php, and regenerated for each WordPress release so it tracks the code rather than a snapshot of it.