private void CustomSelector(string name, bool hasArguments)
{
Delegate deleg;
if (!CustomSelectors.TryGetValue(name, out deleg))
{
throw new FormatException(string.Format("Unknown pseudo-selector '{0}'.", name));
}
var formalParameters = deleg.Method.GetParameters();
var actualParameters = new object[formalParameters.Length];
for (int i = 0; i < formalParameters.Length; i++)
{
if (i != 0)
{
Read(ToTokenSpec(Token.Semicolon()));
Read(ToTokenSpec(TokenKind.WhiteSpace));
}
var type = formalParameters[i].ParameterType;
var typeCode = Type.GetTypeCode(type);
if (typeCode == TypeCode.String)
{
actualParameters[i] = Read(ToTokenSpec(TokenKind.String)).Text;
}
else if (
typeCode == TypeCode.Byte ||
typeCode == TypeCode.UInt16 ||
typeCode == TypeCode.UInt32 ||
typeCode == TypeCode.UInt64 ||
typeCode == TypeCode.SByte ||
typeCode == TypeCode.Int16 ||
typeCode == TypeCode.Int32 ||
typeCode == TypeCode.Int64
)
{
actualParameters[i] = int.Parse(Read(ToTokenSpec(TokenKind.Integer)).Text, CultureInfo.InvariantCulture);
}
else if (type.GetGenericTypeDefinition() == typeof(Selector <>))
{
actualParameters[i] = ParseSubGenerator().Selector;
}
else
{
throw new ArgumentException(string.Format("Unsupported parameter type for custom selector '{0}'", name));
}
}
var selector = deleg.DynamicInvoke(actualParameters);
_generator.CustomSelector(selector);
}
