1: <?php
 2: 
 3: namespace BN\Compiler\Scanner\Converter;
 4: 
 5: use BN\Compiler\Scanner\LexemeConverter;
 6: use BN\Compiler\Token\Token;
 7: use BN\Compiler\Token\TokenType;
 8: 
 9: class LexemeToConstant implements LexemeConverter
10: {
11:     private $constants = array();
12: 
13:     public function __construct(array $constants)
14:     {
15:         $this->constants = $constants;
16:     }
17: 
18:     public function canConvertLexeme($lexeme)
19:     {
20:         return in_array($lexeme, $this->constants, true);
21:     }
22: 
23:     public function convertLexeme($lexeme)
24:     {
25:         return new Token(TokenType::CONSTANT, $lexeme);
26:     }
27: }
28: