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| 1 | <?php |
| 2 | /** |
| 3 | * @private |
| 4 | * @see less-3.13.1.js#Operation.prototype |
| 5 | */ |
| 6 | class Less_Tree_Operation extends Less_Tree { |
| 7 | |
| 8 | public $op; |
| 9 | public $operands; |
| 10 | public $isSpaced; |
| 11 | |
| 12 | /** |
| 13 | * @param string $op |
| 14 | */ |
| 15 | public function __construct( $op, $operands, $isSpaced = false ) { |
| 16 | $this->op = trim( $op ); |
| 17 | $this->operands = $operands; |
| 18 | $this->isSpaced = $isSpaced; |
| 19 | } |
| 20 | |
| 21 | public function accept( $visitor ) { |
| 22 | $this->operands = $visitor->visitArray( $this->operands ); |
| 23 | } |
| 24 | |
| 25 | public function compile( $env ) { |
| 26 | $a = $this->operands[0]->compile( $env ); |
| 27 | $b = $this->operands[1]->compile( $env ); |
| 28 | |
| 29 | // Skip operation if argument was not compiled down to a non-operable value. |
| 30 | // For example, if one argument is a Less_Tree_Call like 'var(--foo)' then we |
| 31 | // preserve it as literal for native CSS. |
| 32 | // https://phabricator.wikimedia.org/T331688 |
| 33 | if ( $env->isMathOn( $this->op ) ) { |
| 34 | $op = $this->op === './' ? '/' : $this->op; |
| 35 | |
| 36 | if ( $a instanceof Less_Tree_Dimension && $b instanceof Less_Tree_Color ) { |
| 37 | $a = $a->toColor(); |
| 38 | } elseif ( $b instanceof Less_Tree_Dimension && $a instanceof Less_Tree_Color ) { |
| 39 | $b = $b->toColor(); |
| 40 | } |
| 41 | |
| 42 | if ( !( $a instanceof Less_Tree_Dimension || $a instanceof Less_Tree_Color ) ) { |
| 43 | if ( $a instanceof Less_Tree_Operation && $a->op === '/' && $env->math === Less_Environment::MATH_PARENS_DIVISION |
| 44 | ) { |
| 45 | return new self( $this->op, [ $a, $b ], $this->isSpaced ); |
| 46 | } |
| 47 | throw new Less_Exception_Compiler( "Operation on an invalid type" ); |
| 48 | } |
| 49 | |
| 50 | return $a->operate( $op, $b ); |
| 51 | } else { |
| 52 | return new self( $this->op, [ $a, $b ], $this->isSpaced ); |
| 53 | } |
| 54 | } |
| 55 | |
| 56 | /** |
| 57 | * @see Less_Tree::genCSS |
| 58 | */ |
| 59 | public function genCSS( $output ) { |
| 60 | $this->operands[0]->genCSS( $output ); |
| 61 | if ( $this->isSpaced ) { |
| 62 | $output->add( " " ); |
| 63 | } |
| 64 | $output->add( $this->op ); |
| 65 | if ( $this->isSpaced ) { |
| 66 | $output->add( ' ' ); |
| 67 | } |
| 68 | $this->operands[1]->genCSS( $output ); |
| 69 | } |
| 70 | |
| 71 | } |