vendor/oyejorge/less.php/lib/Less/Tree/Operation.php

   1 <?php
   2
   3 /**
   4  * Operation
   5  *
   6  * @package Less
   7  * @subpackage tree
   8  */
   9 class Less_Tree_Operation extends Less_Tree{
  10
  11         public $op;
  12         public $operands;
  13         public $isSpaced;
  14         public $type = 'Operation';
  15
  16         /**
  17          * @param string $op
  18          */
  19         public function __construct($op, $operands, $isSpaced = false){
  20                 $this->op = trim($op);
  21                 $this->operands = $operands;
  22                 $this->isSpaced = $isSpaced;
  23         }
  24
  25     public function accept($visitor) {
  26                 $this->operands = $visitor->visitArray($this->operands);
  27         }
  28
  29         public function compile($env){
  30                 $a = $this->operands[0]->compile($env);
  31                 $b = $this->operands[1]->compile($env);
  32
  33
  34                 if( Less_Environment::isMathOn() ){
  35
  36                         if( $a instanceof Less_Tree_Dimension && $b instanceof Less_Tree_Color ){
  37                                 $a = $a->toColor();
  38
  39                         }elseif( $b instanceof Less_Tree_Dimension && $a instanceof Less_Tree_Color ){
  40                                 $b = $b->toColor();
  41
  42                         }
  43
  44                         if( !method_exists($a,'operate') ){
  45                                 throw new Less_Exception_Compiler("Operation on an invalid type");
  46                         }
  47
  48                         return $a->operate( $this->op, $b);
  49                 }
  50
  51                 return new Less_Tree_Operation($this->op, array($a, $b), $this->isSpaced );
  52         }
  53
  54
  55     /**
  56      * @see Less_Tree::genCSS
  57      */
  58     public function genCSS( $output ){
  59                 $this->operands[0]->genCSS( $output );
  60                 if( $this->isSpaced ){
  61                         $output->add( " " );
  62                 }
  63                 $output->add( $this->op );
  64                 if( $this->isSpaced ){
  65                         $output->add( ' ' );
  66                 }
  67                 $this->operands[1]->genCSS( $output );
  68         }
  69
  70 }