Adding upstream version 0.13.1.upstream/0.13.1

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 68 insertions, 0 deletions

diff --git a/vendor/wikimedia/less.php/lib/Less/Tree/Condition.php b/vendor/wikimedia/less.php/lib/Less/Tree/Condition.php
new file mode 100644
index 0000000..5204e83
--- /dev/null
+++ b/vendor/wikimedia/less.php/lib/Less/Tree/Condition.php
@@ -0,0 +1,68 @@
+<?php
+/**
+ * @private
+ */
+class Less_Tree_Condition extends Less_Tree {
+
+	public $op;
+	public $lvalue;
+	public $rvalue;
+	public $index;
+	public $negate;
+	public $type = 'Condition';
+
+	public function __construct( $op, $l, $r, $i = 0, $negate = false ) {
+		$this->op = trim( $op );
+		$this->lvalue = $l;
+		$this->rvalue = $r;
+		$this->index = $i;
+		$this->negate = $negate;
+	}
+
+	public function accept( $visitor ) {
+		$this->lvalue = $visitor->visitObj( $this->lvalue );
+		$this->rvalue = $visitor->visitObj( $this->rvalue );
+	}
+
+	public function compile( $env ) {
+		$a = $this->lvalue->compile( $env );
+		$b = $this->rvalue->compile( $env );
+
+		switch ( $this->op ) {
+			case 'and':
+				$result = $a && $b;
+				break;
+
+			case 'or':
+				$result = $a || $b;
+				break;
+
+			default:
+				if ( Less_Parser::is_method( $a, 'compare' ) ) {
+					$result = $a->compare( $b );
+				} elseif ( Less_Parser::is_method( $b, 'compare' ) ) {
+					$result = $b->compare( $a );
+				} else {
+					throw new Less_Exception_Compiler( 'Unable to perform comparison', null, $this->index );
+				}
+
+				switch ( $result ) {
+					case -1:
+					$result = $this->op === '<' || $this->op === '=<' || $this->op === '<=';
+						break;
+
+					case 0:
+					$result = $this->op === '=' || $this->op === '>=' || $this->op === '=<' || $this->op === '<=';
+						break;
+
+					case 1:
+					$result = $this->op === '>' || $this->op === '>=';
+						break;
+				}
+				break;
+		}
+
+		return $this->negate ? !$result : $result;
+	}
+
+}