public override bool Equals(object other)
{
if (null == LeftNode || null == RightNode)
{
return(false);
}
var otherNode = other as BinaryExpressionNode;
if (null == otherNode)
{
return(false);
}
return(LeftNode.Equals(otherNode.LeftNode) &&
Optr.Equals(otherNode.Optr) &&
RightNode.Equals(otherNode.RightNode));
}