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-rw-r--r--lib/less.php/Tree/Negative.php37
1 files changed, 37 insertions, 0 deletions
diff --git a/lib/less.php/Tree/Negative.php b/lib/less.php/Tree/Negative.php
new file mode 100644
index 0000000..507443e
--- /dev/null
+++ b/lib/less.php/Tree/Negative.php
@@ -0,0 +1,37 @@
+<?php
+
+/**
+ * Negative
+ *
+ * @package Less
+ * @subpackage tree
+ */
+class Less_Tree_Negative extends Less_Tree{
+
+ public $value;
+ public $type = 'Negative';
+
+ public function __construct($node){
+ $this->value = $node;
+ }
+
+ //function accept($visitor) {
+ // $this->value = $visitor->visit($this->value);
+ //}
+
+ /**
+ * @see Less_Tree::genCSS
+ */
+ public function genCSS( $output ){
+ $output->add( '-' );
+ $this->value->genCSS( $output );
+ }
+
+ public function compile($env) {
+ if( Less_Environment::isMathOn() ){
+ $ret = new Less_Tree_Operation('*', array( new Less_Tree_Dimension(-1), $this->value ) );
+ return $ret->compile($env);
+ }
+ return new Less_Tree_Negative( $this->value->compile($env) );
+ }
+} \ No newline at end of file