/// <inheritdoc/>
public override string Print(SignOperNode node)
{
switch (node.Sign)
{
case Sign.POSITIVE:
return($"+{node.Child.Print(this)}");
case Sign.NEGATIVE:
return($"-{node.Child.Print(this)}");
default:
return(node.Child.Print(this));
}
}
/// <inheritdoc/>
public override ExpNode Execute(SignOperNode node)
{
node.Child = node.Child.Execute(this);
switch (node.Sign)
{
case Sign.POSITIVE:
return(node.Child);
case Sign.NEGATIVE:
{
if (node.Child is NumericalValueNode nvNode)
{
return(QuickOpers.MakeNumericalNode(nvNode.DoubleValue * -1));
}
return(QuickOpers.Multiply(-1, node.Child).Execute(this));
}
default:
return(node);
}
}
/// <summary> /// Executes operation on a <see cref="SignOperNode"/>. /// </summary> /// <param name="node">The <see cref="SignOperNode"/> to execute operation on.</param> /// <returns>The result of the operation on a <see cref="SignOperNode"/>.</returns> public virtual ExpNode Execute(SignOperNode node) => Execute((UOperNode)node);
/// <inheritdoc/>
public override ExpNode Execute(SignOperNode node)
{
node.Child = node.Child.Execute(this);
return(node);
}
/// <summary> /// Prints a <see cref="SignOperNode"/>. /// </summary> /// <param name="node">The <see cref="SignOperNode"/> to print.</param> /// <returns>The <see cref="SignOperNode"/> printed to a string.</returns> public virtual string Print(SignOperNode node) => Print((UOperNode)node);
