/// <summary>
/// Determines whether the hex literal node is a literal value that overflows/underflows a 32 bit integer.
/// </summary>
/// <param name="node">The integer hex node to test.</param>
/// <returns><see cref="LSLLiteralOverflowType"/>.</returns>
/// <exception cref="ArgumentNullException"><paramref name="node"/> is <c>null</c>.</exception>
public static LSLLiteralOverflowType CheckForOverflow(this ILSLHexLiteralNode node)
{
if (node == null)
{
throw new ArgumentNullException("node");
}
var hexPart = node.RawText.Substring(2).TrimStart('0');
bool negative = false;
switch (char.ToUpper(hexPart[0]))
{
case '8':
case '9':
case 'A':
case 'B':
case 'C':
case 'D':
case 'E':
case 'F':
negative = true;
break;
}
if (hexPart.Length > 8)
{
return(negative ? LSLLiteralOverflowType.Underflow : LSLLiteralOverflowType.Overflow);
}
return(LSLLiteralOverflowType.None);
}
/// <summary>
/// Visits a hex literal token node during a syntax tree traversal.
/// </summary>
/// <param name="node">The Syntax Tree Node.</param>
/// <returns>An object of type (T) from the visitor implementation of this function.</returns>
public virtual T VisitHexLiteral(ILSLHexLiteralNode node)
{
return(default(T));
}
