47 lines
876 B
PHP
47 lines
876 B
PHP
<?php
|
|
|
|
/**
|
|
* Visitor
|
|
*
|
|
* @package Less
|
|
* @subpackage visitor
|
|
*/
|
|
class Less_Visitor {
|
|
|
|
protected $methods = array();
|
|
protected $_visitFnCache = array();
|
|
|
|
public function __construct() {
|
|
$this->_visitFnCache = get_class_methods( get_class( $this ) );
|
|
$this->_visitFnCache = array_flip( $this->_visitFnCache );
|
|
}
|
|
|
|
public function visitObj( $node ) {
|
|
$funcName = 'visit'.$node->type;
|
|
if ( isset( $this->_visitFnCache[$funcName] ) ) {
|
|
|
|
$visitDeeper = true;
|
|
$this->$funcName( $node, $visitDeeper );
|
|
|
|
if ( $visitDeeper ) {
|
|
$node->accept( $this );
|
|
}
|
|
|
|
$funcName = $funcName . "Out";
|
|
if ( isset( $this->_visitFnCache[$funcName] ) ) {
|
|
$this->$funcName( $node );
|
|
}
|
|
|
|
} else {
|
|
$node->accept( $this );
|
|
}
|
|
|
|
return $node;
|
|
}
|
|
|
|
public function visitArray( $nodes ) {
|
|
array_map( array( $this,'visitObj' ), $nodes );
|
|
return $nodes;
|
|
}
|
|
}
|