SearchResultTrait.php

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<?php
 
trait SearchResultTrait {
    protected $extensionData;
 
    public function getExtensionData() {
        if ( $this->extensionData ) {
            return call_user_func( $this->extensionData );
        } else {
            return [];
        }
    }
 
    public function setExtensionData( $extensionData ) {
        if ( $extensionData instanceof Closure ) {
            $this->extensionData = $extensionData;
        } elseif ( is_array( $extensionData ) ) {
            wfDeprecated( __METHOD__ . ' with array argument', '1.32' );
            $this->extensionData = static function () use ( $extensionData ) {
                return $extensionData;
            };
        } else {
            $type = get_debug_type( $extensionData );
            throw new InvalidArgumentException(
                __METHOD__ . " must be called with Closure|array, but received $type" );
        }
    }
}