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<?php |
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declare(strict_types=1); |
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namespace Antlr\Antlr4\Runtime\Atn\Actions; |
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use Antlr\Antlr4\Runtime\Comparison\Hasher; |
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use Antlr\Antlr4\Runtime\Lexer; |
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/** |
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* Implements the `pushMode` lexer action by calling {@see Lexer::pushMode()} |
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* with the assigned mode. |
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* |
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* @author Sam Harwell |
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*/ |
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final class LexerPushModeAction implements LexerAction |
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{ |
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/** @var int */ |
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private $mode; |
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public function __construct(int $mode) |
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{ |
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$this->mode = $mode; |
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} |
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/** |
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* Get the lexer mode this action should transition the lexer to. |
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* |
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* @return int The lexer mode for this `pushMode` command. |
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*/ |
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public function getMode() : int |
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{ |
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return $this->mode; |
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} |
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/** |
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* {@inheritdoc} |
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* |
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* @return int This method returns {@see LexerActionType::PUSH_MODE}. |
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*/ |
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public function getActionType() : int |
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{ |
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return LexerActionType::PUSH_MODE; |
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} |
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/** |
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* {@inheritdoc} |
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* |
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* @return bool This method returns `false`. |
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*/ |
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public function isPositionDependent() : bool |
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{ |
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return false; |
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} |
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/** |
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* {@inheritdoc} |
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* |
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* This action is implemented by calling {@see Lexer::pushMode()} with the |
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* value provided by {@see LexerPushModeAction::getMode()}. |
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*/ |
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public function execute(Lexer $lexer) : void |
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{ |
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$lexer->pushMode($this->mode); |
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} |
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public function hashCode() : int |
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{ |
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return Hasher::hash($this->getActionType(), $this->mode); |
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} |
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public function equals(object $other) : bool |
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{ |
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if ($this === $other) { |
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return true; |
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} |
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if (!$other instanceof self) { |
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return false; |
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} |
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return $this->mode === $other->mode; |
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} |
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public function __toString() : string |
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{ |
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return \sprintf('pushMode(%d)', $this->mode); |
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} |
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} |
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SetBased /
antlr-php-runtime
