1: <?php
 2: namespace Pharborist\Constants;
 3: 
 4: use Pharborist\ParentNode;
 5: use Pharborist\Namespaces\NameNode;
 6: use Pharborist\ExpressionNode;
 7: 
 8: /**
 9:  * A constant lookup, like `MyNamespace\MY_CONST` or `IS_FUBAR`.
10:  */
11: class ConstantNode extends ParentNode implements ExpressionNode {
12:   /**
13:    * @param string|NameNode $name
14:    *
15:    * @return static
16:    */
17:   public static function create($name) {
18:     if (is_string($name)) {
19:       $name = NameNode::create($name);
20:     }
21:     /** @var ConstantNode $node */
22:     $node = new static();
23:     $node->addChild($name, 'constantName');
24:     return $node;
25:   }
26: 
27:   /**
28:    * @var \Pharborist\Namespaces\NameNode
29:    */
30:   protected $constantName;
31: 
32:   /**
33:    * @return \Pharborist\Namespaces\NameNode
34:    */
35:   public function getConstantName() {
36:     return $this->constantName;
37:   }
38: 
39:   /**
40:    * Convert the constant into uppercase.
41:    *
42:    * @return $this
43:    */
44:   public function toUpperCase() {
45:     $token = $this->getConstantName()->lastToken();
46:     $token->setText(strtoupper($token->getText()));
47:     return $this;
48:   }
49: 
50:   /**
51:    * Convert the constant into lowercase.
52:    *
53:    * @return $this
54:    */
55:   public function toLowerCase() {
56:     $token = $this->getConstantName()->lastToken();
57:     $token->setText(strtolower($token->getText()));
58:     return $this;
59:   }
60: }
61: