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1 |
1 | <?php |
2 | /** |
3 | * @file |
4 | * @license https://opensource.org/licenses/Apache-2.0 Apache-2.0 |
5 | */ |
6 | |
7 | namespace Wikimedia\CSS\Objects; |
8 | |
9 | use InvalidArgumentException; |
10 | use Wikimedia\CSS\Util; |
11 | |
12 | /** |
13 | * Represent a CSS qualified rule |
14 | */ |
15 | class QualifiedRule extends Rule { |
16 | |
17 | /** @var ComponentValueList */ |
18 | protected $prelude; |
19 | |
20 | /** @var SimpleBlock */ |
21 | protected $block; |
22 | |
23 | /** @inheritDoc */ |
24 | public function __construct( Token $token = null ) { |
25 | parent::__construct( $token ?: new Token( Token::T_EOF ) ); |
26 | $this->prelude = new ComponentValueList(); |
27 | $this->block = SimpleBlock::newFromDelimiter( Token::T_LEFT_BRACE ); |
28 | } |
29 | |
30 | public function __clone() { |
31 | $this->prelude = clone $this->prelude; |
32 | $this->block = clone $this->block; |
33 | } |
34 | |
35 | /** |
36 | * Return the rule's prelude |
37 | * @return ComponentValueList |
38 | */ |
39 | public function getPrelude() { |
40 | return $this->prelude; |
41 | } |
42 | |
43 | /** |
44 | * Return the rule's block |
45 | * @return SimpleBlock |
46 | */ |
47 | public function getBlock() { |
48 | return $this->block; |
49 | } |
50 | |
51 | /** |
52 | * Set the block |
53 | * @param SimpleBlock|null $block |
54 | */ |
55 | public function setBlock( SimpleBlock $block = null ) { |
56 | if ( $block->getStartTokenType() !== Token::T_LEFT_BRACE ) { |
57 | throw new InvalidArgumentException( 'Qualified rule block must be delimited by {}' ); |
58 | } |
59 | $this->block = $block; |
60 | } |
61 | |
62 | /** |
63 | * @param string $function Function to call, toTokenArray() or toComponentValueArray() |
64 | * @return Token[]|ComponentValue[] |
65 | */ |
66 | private function toTokenOrCVArray( $function ) { |
67 | $ret = []; |
68 | |
69 | // Manually looping and appending turns out to be noticeably faster than array_merge. |
70 | foreach ( $this->prelude->$function() as $v ) { |
71 | $ret[] = $v; |
72 | } |
73 | foreach ( $this->block->$function() as $v ) { |
74 | $ret[] = $v; |
75 | } |
76 | return $ret; |
77 | } |
78 | |
79 | /** @inheritDoc */ |
80 | public function toTokenArray() { |
81 | return $this->toTokenOrCVArray( __FUNCTION__ ); |
82 | } |
83 | |
84 | /** @inheritDoc */ |
85 | public function toComponentValueArray() { |
86 | return $this->toTokenOrCVArray( __FUNCTION__ ); |
87 | } |
88 | |
89 | public function __toString() { |
90 | return Util::stringify( $this ); |
91 | } |
92 | } |