Lines Matching defs:empty

58     public static function empty() : EmptyPredictionContext
60         static $empty;
62         if ($empty === null) {
64             $empty = new EmptyPredictionContext();
65             $empty->id = 0;
68         return $empty;
73      * Return {@see PredictionContext::empty()} if `outerContext` is empty or null.
82         // is EMPTY. Nobody called us. (if we are empty, return empty)
84             return self::empty();
100      * This means only the {@see PredictionContext::empty()} (wildcard? not sure)
105         return $this === self::empty();
307      * {@see PredictionContext::empty()}. In the following diagrams, the symbol
308      * `$` is used to represent {@see PredictionContext::empty()}.
315      * {@see PredictionContext::empty()} is superset of any graph; return
316      * {@see PredictionContext::empty()}.
320      * {@see PredictionContext::empty()} and anything is `#EMPTY`, so merged parent is
334      * Must keep all contexts; {@see PredictionContext::empty()} in array is
347             if ($a === self::empty()) {
348                 return self::empty();// // + b =//
351             if ($b === self::empty()) {
352                 return self::empty();// a +// =//
355             if ($a === self::empty() && $b === self::empty()) {
356                 return self::empty();// $ + $ = $
359             if ($a === self::empty()) {
367             if ($b === self::empty()) {
620             $updated = self::empty();