System.Xml.Xsl.Qil.QilPatternFactory.Or C# (CSharp) Method

        public QilNode Or(QilNode left, QilNode right) {
            CheckLogicArg(left);
            CheckLogicArg(right);

            if (! debug) {
                // True, True => True (left)           other, True => True (right)
                // True, False => True (left)          other, False => other (left)
                // True, other => True (left)          other, other => Or
                if (left.NodeType == QilNodeType.True || right.NodeType == QilNodeType.False) {
                    return left;
                }
                if (left.NodeType == QilNodeType.False || right.NodeType == QilNodeType.True) {
                    return right;
                }
            }
            return f.Or(left, right);
        }