1: <?php
 2: namespace Pharborist\Variables;
 3: 
 4: use Pharborist\ExpressionNode;
 5: use Pharborist\ParentNode;
 6: 
 7: /**
 8:  * A compound variable.
 9:  *
10:  * For example, ${expr()}
11:  */
12: class CompoundVariableNode extends ParentNode implements VariableExpressionNode {
13:   /**
14:    * @var ExpressionNode
15:    */
16:   protected $expression;
17: 
18:   /**
19:    * @return ExpressionNode
20:    */
21:   public function getExpression() {
22:     return $this->expression;
23:   }
24: }
25: