Lines Matching refs:null

37     /** @var Lexer|null */
125         if ($match_calls === null) {
140             if ($dfa->s0 === null) {
209             // be able to avoid doing a reach operation upon t. If s!=null,
211             // creating a DFA state. Once we know s!=null, we check to see if
226             if ($target === null) {
259      * this method returns `null`.
264      * @return DFAState|null The existing target DFA state for the given input symbol
265      *                       `t`, or `null` if the target state for this edg
270         if ($s->edges === null || $t < self::MIN_DFA_EDGE || $t > self::MAX_DFA_EDGE) {
271             return null;
274         $target = $s->edges[$t - self::MIN_DFA_EDGE] ?? null;
276         if ($this->debug && $target !== null) {
321         if ($this->prevAccept->getDfaState() !== null) {
324             if ($dfaState === null) {
325                 throw new \RuntimeException('Unexpected null DFA State.');
347         if ($this->recog === null) {
348             throw new \RuntimeException('Unexpected null recognizer.');
390                 if ($target !== null) {
393                     if ($lexerExecutor !== null) {
398                     $config = new LexerATNConfig($cfg, $target, null, $lexerExecutor);
434         if ($lexerActionExecutor !== null && $this->recog) {
445         return null;
455             $cfg = new LexerATNConfig(null, $target, $initialContext, null, $i + 1);
479         $cfg = null;
498             if ($config->context === null || $config->context->hasEmptyPath()) {
499                 if ($config->context === null || $config->context->isEmpty()) {
509             if ($config->context !== null && !$config->context->isEmpty()) {
540             if ($cfg !== null) {
566         $cfg = null;
618                 if ($config->context === null || $config->context->hasEmptyPath()) {
640                     $cfg = new LexerATNConfig($config, $t->target, null, $lexerActionExecutor);
665                 $cfg = null;
694         if ($this->recog === null) {
699             return $this->recog->sempred(null, $ruleIndex, $predIndex);
710             return $this->recog->sempred(null, $ruleIndex, $predIndex);
766         if ($from->edges === null) {
788         $firstConfigWithRuleStopState = null;
798         if ($firstConfigWithRuleStopState !== null) {
815         if ($existing !== null && $existing instanceof DFAState) {