/// <summary>
/// Initializes a new instance of the <see cref="ArgumentDefinition" /> class.
/// </summary>
/// <param name="node">The node that defines the argument.</param>
/// <param name="ordinalIndex">The ordinal index where the argument exists in the list of arguments.</param>
/// <exception cref="ArgumentNullException">The <paramref name="node" /> parameter is <c>null</c>.</exception>
public ArgumentDefinition(AttributeArgumentSyntax node, int?ordinalIndex) : base(node)
{
node = node ?? throw new ArgumentNullException(nameof(node));
Declaration = node.ToFullString();
Value = node.Expression.ToString();
if (node.NameColon == null)
{
OrdinalIndex = ordinalIndex;
ParameterName = string.Empty;
Name = Value;
ArgumentType = ArgumentType.Ordinal;
}
else
{
OrdinalIndex = null;
ParameterName = node.NameColon.Name.ToString();
Name = ParameterName;
ArgumentType = ArgumentType.Named;
}
}
