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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 qualified rule, eg. `div { color: red }` |
| 16 | */ |
| 17 | class QualifiedRule extends Rule { |
| 18 | |
| 19 | /** @var ComponentValueList */ |
| 20 | protected $prelude; |
| 21 | |
| 22 | /** @var SimpleBlock */ |
| 23 | protected $block; |
| 24 | |
| 25 | /** @inheritDoc */ |
| 26 | public function __construct( ?Token $token = null ) { |
| 27 | parent::__construct( $token ?: new Token( Token::T_EOF ) ); |
| 28 | $this->prelude = new ComponentValueList(); |
| 29 | $this->block = SimpleBlock::newFromDelimiter( Token::T_LEFT_BRACE ); |
| 30 | } |
| 31 | |
| 32 | public function __clone() { |
| 33 | $this->prelude = clone $this->prelude; |
| 34 | $this->block = clone $this->block; |
| 35 | } |
| 36 | |
| 37 | /** |
| 38 | * Return the rule's prelude |
| 39 | * @return ComponentValueList |
| 40 | */ |
| 41 | public function getPrelude() { |
| 42 | return $this->prelude; |
| 43 | } |
| 44 | |
| 45 | /** |
| 46 | * Return the rule's block |
| 47 | * @return SimpleBlock |
| 48 | */ |
| 49 | public function getBlock() { |
| 50 | return $this->block; |
| 51 | } |
| 52 | |
| 53 | /** |
| 54 | * Set the block |
| 55 | * @param SimpleBlock|null $block |
| 56 | */ |
| 57 | public function setBlock( ?SimpleBlock $block = null ) { |
| 58 | if ( $block->getStartTokenType() !== Token::T_LEFT_BRACE ) { |
| 59 | throw new InvalidArgumentException( 'Qualified rule block must be delimited by {}' ); |
| 60 | } |
| 61 | $this->block = $block; |
| 62 | } |
| 63 | |
| 64 | /** |
| 65 | * @param string $function Function to call, toTokenArray() or toComponentValueArray() |
| 66 | * @return Token[]|ComponentValue[] |
| 67 | */ |
| 68 | private function toTokenOrCVArray( $function ) { |
| 69 | $ret = []; |
| 70 | |
| 71 | // Manually looping and appending turns out to be noticeably faster than array_merge. |
| 72 | foreach ( $this->prelude->$function() as $v ) { |
| 73 | $ret[] = $v; |
| 74 | } |
| 75 | foreach ( $this->block->$function() as $v ) { |
| 76 | $ret[] = $v; |
| 77 | } |
| 78 | return $ret; |
| 79 | } |
| 80 | |
| 81 | /** @inheritDoc */ |
| 82 | public function toTokenArray() { |
| 83 | return $this->toTokenOrCVArray( __FUNCTION__ ); |
| 84 | } |
| 85 | |
| 86 | /** @inheritDoc */ |
| 87 | public function toComponentValueArray() { |
| 88 | return $this->toTokenOrCVArray( __FUNCTION__ ); |
| 89 | } |
| 90 | |
| 91 | public function __toString() { |
| 92 | return Util::stringify( $this ); |
| 93 | } |
| 94 | } |