1: <?php
 2: namespace Pharborist\Generators;
 3: 
 4: use Pharborist\ParentNode;
 5: use Pharborist\Node;
 6: use Pharborist\ExpressionNode;
 7: 
 8: /**
 9:  * A yield expression.
10:  */
11: class YieldNode extends ParentNode implements ExpressionNode {
12:   /**
13:    * @var Node
14:    */
15:   protected $key;
16: 
17:   /**
18:    * @var Node
19:    */
20:   protected $value;
21: 
22:   /**
23:    * @return Node
24:    */
25:   public function getKey() {
26:     return $this->key;
27:   }
28: 
29:   /**
30:    * @return Node
31:    */
32:   public function getValue() {
33:     return $this->value;
34:   }
35: }
36: