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| 1 | <?php |
| 2 | declare( strict_types = 1 ); |
| 3 | |
| 4 | /** |
| 5 | * @file |
| 6 | * @license https://opensource.org/licenses/Apache-2.0 Apache-2.0 |
| 7 | */ |
| 8 | |
| 9 | namespace Wikimedia\CSS\Objects; |
| 10 | |
| 11 | use InvalidArgumentException; |
| 12 | use Wikimedia\CSS\Util; |
| 13 | |
| 14 | /** |
| 15 | * Represent a CSS function, eg. `rgb(255, 0, 0)` |
| 16 | */ |
| 17 | class CSSFunction extends ComponentValue { |
| 18 | |
| 19 | /** @var string */ |
| 20 | protected $name; |
| 21 | |
| 22 | /** @var ComponentValueList */ |
| 23 | protected $value; |
| 24 | |
| 25 | /** |
| 26 | * @param Token $token Function token starting the rule |
| 27 | */ |
| 28 | public function __construct( Token $token ) { |
| 29 | if ( $token->type() !== Token::T_FUNCTION ) { |
| 30 | throw new InvalidArgumentException( |
| 31 | "CSS function must begin with a function token, got {$token->type()}" |
| 32 | ); |
| 33 | } |
| 34 | |
| 35 | [ $this->line, $this->pos ] = $token->getPosition(); |
| 36 | $this->name = $token->value(); |
| 37 | $this->value = new ComponentValueList(); |
| 38 | } |
| 39 | |
| 40 | public function __clone() { |
| 41 | $this->value = clone $this->value; |
| 42 | } |
| 43 | |
| 44 | /** |
| 45 | * Create a function by name |
| 46 | * @param string $name |
| 47 | * @return CSSFunction |
| 48 | */ |
| 49 | public static function newFromName( $name ) { |
| 50 | return new static( new Token( Token::T_FUNCTION, $name ) ); |
| 51 | } |
| 52 | |
| 53 | /** |
| 54 | * Return the function's name |
| 55 | * @return string |
| 56 | */ |
| 57 | public function getName() { |
| 58 | return $this->name; |
| 59 | } |
| 60 | |
| 61 | /** |
| 62 | * Return the function's value |
| 63 | * @return ComponentValueList |
| 64 | */ |
| 65 | public function getValue() { |
| 66 | return $this->value; |
| 67 | } |
| 68 | |
| 69 | /** |
| 70 | * Return an array of Tokens that correspond to this object. |
| 71 | * @return Token[] |
| 72 | */ |
| 73 | public function toTokenArray() { |
| 74 | $ret = []; |
| 75 | |
| 76 | $ret[] = new Token( |
| 77 | Token::T_FUNCTION, |
| 78 | [ 'value' => $this->name, 'position' => [ $this->line, $this->pos ] ] |
| 79 | ); |
| 80 | // Manually looping and appending turns out to be noticeably faster than array_merge. |
| 81 | foreach ( $this->value->toTokenArray() as $v ) { |
| 82 | $ret[] = $v; |
| 83 | } |
| 84 | $ret[] = new Token( Token::T_RIGHT_PAREN ); |
| 85 | |
| 86 | return $ret; |
| 87 | } |
| 88 | |
| 89 | public function __toString() { |
| 90 | return Util::stringify( $this ); |
| 91 | } |
| 92 | } |