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<?php |
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declare(strict_types=1); |
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/** |
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* @license http://opensource.org/licenses/mit-license.php MIT |
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* @link https://github.com/nicoSWD |
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* @author Nicolas Oelgart <[email protected]> |
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*/ |
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namespace nicoSWD\Rule\TokenStream; |
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use ArrayIterator; |
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use Closure; |
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use nicoSWD\Rule\Parser\Exception\ParserException; |
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use nicoSWD\Rule\Grammar\CallableUserFunction; |
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use nicoSWD\Rule\TokenStream\Token\BaseToken; |
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class TokenStream extends ArrayIterator |
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{ |
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/** @var ArrayIterator */ |
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private $stack; |
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/** @var AST */ |
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private $ast; |
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218 |
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public function __construct(ArrayIterator $stack, AST $ast) |
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{ |
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$this->stack = $stack; |
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$this->ast = $ast; |
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} |
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206 |
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public function next() |
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{ |
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$this->stack->next(); |
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206 |
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} |
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218 |
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public function valid(): bool |
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{ |
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return $this->stack->valid(); |
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} |
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216 |
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public function current(): BaseToken |
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{ |
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return $this->getCurrentToken()->createNode($this); |
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} |
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public function key(): int |
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{ |
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return $this->stack->key(); |
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} |
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218 |
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public function rewind() |
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{ |
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$this->stack->rewind(); |
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} |
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200 |
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public function getStack(): ArrayIterator |
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{ |
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return $this->stack; |
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} |
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216 |
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private function getCurrentToken(): BaseToken |
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{ |
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return $this->stack->current(); |
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} |
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public function getVariable(string $variableName): BaseToken |
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{ |
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try { |
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90 |
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return $this->ast->getVariable($variableName); |
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4 |
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} catch (Exception\UndefinedVariableException $e) { |
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throw ParserException::undefinedVariable($variableName, $this->getCurrentToken()); |
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} |
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} |
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public function getFunction(string $functionName): Closure |
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{ |
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try { |
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return $this->ast->getFunction($functionName); |
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} catch (Exception\UndefinedFunctionException $e) { |
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throw ParserException::undefinedFunction($functionName, $this->getCurrentToken()); |
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} |
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} |
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public function getMethod(string $methodName, BaseToken $token): CallableUserFunction |
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{ |
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try { |
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return $this->ast->getMethod($methodName, $token); |
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} catch (Exception\UndefinedMethodException $e) { |
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throw ParserException::undefinedMethod($methodName, $this->getCurrentToken()); |
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} |
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} |
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} |
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nicoSWD /
php-rule-parser
