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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\Rules\TokenStream; |
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use Closure; |
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use Iterator; |
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use nicoSWD\Rules\Exceptions\ParserException; |
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use nicoSWD\Rules\Grammar\CallableUserFunction; |
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use nicoSWD\Rules\Tokenizer\Stack; |
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use nicoSWD\Rules\Tokens; |
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use nicoSWD\Rules\TokenStream\Nodes; |
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class TokenStream implements Iterator |
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{ |
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/** @var Stack */ |
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protected $stack; |
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/** @var AST */ |
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private $ast; |
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220 |
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public function create(Stack $stack, AST $ast) |
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{ |
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220 |
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$stream = new self(); |
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220 |
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$stream->stack = $stack; |
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$stream->ast = $ast; |
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return $stream; |
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} |
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210 |
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public function next() |
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{ |
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210 |
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$this->stack->next(); |
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210 |
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} |
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220 |
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public function valid(): bool |
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{ |
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return $this->stack->valid(); |
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} |
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public function current() |
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{ |
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$current = $this->stack->current(); |
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switch (get_class($current)) { |
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default: |
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return $current; |
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218 |
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case Tokens\TokenString::class: |
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218 |
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case Tokens\TokenEncapsedString::class: |
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216 |
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case Tokens\TokenRegex::class: |
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$current = new Nodes\NodeString($this); |
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break; |
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214 |
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case Tokens\TokenOpeningArray::class: |
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$current = new Nodes\NodeArray($this); |
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break; |
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case Tokens\TokenVariable::class: |
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$current = new Nodes\NodeVariable($this); |
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break; |
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212 |
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case Tokens\TokenFunction::class: |
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$current = new Nodes\NodeFunction($this); |
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break; |
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} |
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202 |
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return $current->getNode(); |
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} |
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public function key(): int |
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{ |
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return $this->stack->key(); |
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} |
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public function rewind() |
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{ |
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$this->stack->rewind(); |
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220 |
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} |
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public function getVariable(string $name): Tokens\BaseToken |
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{ |
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try { |
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return $this->ast->getVariable($name); |
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4 |
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} catch (Exception\UndefinedVariableException $e) { |
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throw ParserException::undefinedVariable($name, $this->stack->current()); |
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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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return $this->ast->getFunction($functionName); |
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} |
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public function getMethod(string $methodName, Tokens\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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4 |
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} catch (Exception\UndefinedMethodException $e) { |
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throw ParserException::undefinedMethod($methodName, $this->stack->current()); |
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} |
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} |
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202 |
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public function getStack(): Stack |
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{ |
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return $this->stack; |
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} |
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} |
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nicoSWD /
php-rule-parser
