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DslVariable.class.php (458B)

      1 <?php
      2 
      3 namespace dsl\ast;
      4 
      5 use dsl\DslRuntimeException;
      6 
      7 class DslVariable implements DslStatement
      8 {
      9 	public $name;
     10 
     11 	/**
     12 	 * @param $name
     13 	 */
     14 	public function __construct($name)
     15 	{
     16 		$this->name = $name;
     17 	}
     18 
     19 
     20 	public function execute( & $context ) {
     21 
     22 		if   ( ! array_key_exists( $this->name, $context ) )
     23 			throw new DslRuntimeException('\''.$this->name.'\' does not exist');
     24 
     25 		return $context[ $this->name ];
     26 	}
     27 
     28 	public function parse($tokens)
     29 	{
     30 	}
     31 }