qrcode.chapril.org-libreqr/less.php/lib/Less/Tree/Operation.php

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2021-02-15 21:29:38 +01:00
<?php
/**
* Operation
*
* @package Less
* @subpackage tree
*/
class Less_Tree_Operation extends Less_Tree {
public $op;
public $operands;
public $isSpaced;
public $type = 'Operation';
/**
* @param string $op
*/
public function __construct( $op, $operands, $isSpaced = false ) {
$this->op = trim( $op );
$this->operands = $operands;
$this->isSpaced = $isSpaced;
}
public function accept( $visitor ) {
$this->operands = $visitor->visitArray( $this->operands );
}
public function compile( $env ) {
$a = $this->operands[0]->compile( $env );
$b = $this->operands[1]->compile( $env );
if ( Less_Environment::isMathOn() ) {
if ( $a instanceof Less_Tree_Dimension && $b instanceof Less_Tree_Color ) {
$a = $a->toColor();
} elseif ( $b instanceof Less_Tree_Dimension && $a instanceof Less_Tree_Color ) {
$b = $b->toColor();
}
if ( !method_exists( $a, 'operate' ) ) {
throw new Less_Exception_Compiler( "Operation on an invalid type" );
}
return $a->operate( $this->op, $b );
}
return new Less_Tree_Operation( $this->op, array( $a, $b ), $this->isSpaced );
}
/**
* @see Less_Tree::genCSS
*/
public function genCSS( $output ) {
$this->operands[0]->genCSS( $output );
if ( $this->isSpaced ) {
$output->add( " " );
}
$output->add( $this->op );
if ( $this->isSpaced ) {
$output->add( ' ' );
}
$this->operands[1]->genCSS( $output );
}
}