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

   1 <?php
   2
   3 /**
   4  * Variable
   5  *
   6  * @package Less
   7  * @subpackage tree
   8  */
   9 class Less_Tree_Variable extends Less_Tree{
  10
  11         public $name;
  12         public $index;
  13         public $currentFileInfo;
  14         public $evaluating = false;
  15         public $type = 'Variable';
  16
  17     /**
  18      * @param string $name
  19      */
  20     public function __construct($name, $index = null, $currentFileInfo = null) {
  21         $this->name = $name;
  22         $this->index = $index;
  23                 $this->currentFileInfo = $currentFileInfo;
  24     }
  25
  26         public function compile($env) {
  27
  28                 if( $this->name[1] === '@' ){
  29                         $v = new Less_Tree_Variable(substr($this->name, 1), $this->index + 1, $this->currentFileInfo);
  30                         $name = '@' . $v->compile($env)->value;
  31                 }else{
  32                         $name = $this->name;
  33                 }
  34
  35                 if ($this->evaluating) {
  36                         throw new Less_Exception_Compiler("Recursive variable definition for " . $name, null, $this->index, $this->currentFileInfo);
  37                 }
  38
  39                 $this->evaluating = true;
  40
  41                 foreach($env->frames as $frame){
  42                         if( $v = $frame->variable($name) ){
  43                                 $r = $v->value->compile($env);
  44                                 $this->evaluating = false;
  45                                 return $r;
  46                         }
  47                 }
  48
  49                 throw new Less_Exception_Compiler("variable " . $name . " is undefined in file ".$this->currentFileInfo["filename"], null, $this->index, $this->currentFileInfo);
  50         }
  51
  52 }