/// <summary>
/// Acceptor of binary operation
/// </summary>
/// <param name="typeA">Type of left part</param>
/// <param name="typeB">Type of right part</param>
/// <returns>Accepted operation</returns>
public IObjectOperation Accept(object typeA, object typeB)
{
IObjectOperation op = DateTimeMoreComparator.Object.Accept(typeA, typeB);
if (op != null)
{
if (symbol == '>')
{
return(DateTimeMoreComparator.Object);
}
if (symbol == '<')
{
return(DateTimeLessCompatrator.Object);
}
}
if (!ElementaryBinaryOperation.IsNumber(typeA) | !ElementaryBinaryOperation.IsNumber(typeB))
{
return(null);
}
return(this);
}
/// <summary>
/// Accepts operation
/// </summary>
/// <param name="type">Argument type</param>
/// <returns>The operation</returns>
public IObjectOperation Accept(object type)
{
if (!ElementaryBinaryOperation.IsNumber(type))
{
if (!addAcceptors.ContainsKey(type))
{
return(null);
}
List <IOperationAcceptor> l = addAcceptors[type];
foreach (IOperationAcceptor acc in l)
{
IObjectOperation op = acc.Accept(type);
if (op != null)
{
return(op);
}
}
return(null);
}
return(new ElementaryIntegerOperation(symbol, type));
}
/// <summary>
/// Acceptor of binary operation
/// </summary>
/// <param name="typeA">Type of left part</param>
/// <param name="typeB">Type of right part</param>
/// <returns>Accepted operation</returns>
public IObjectOperation Accept(object typeA, object typeB)
{
if (!ElementaryBinaryOperation.IsInteger(typeA))
{
throw new Exception("Illegal integer argument");
}
if ((symbol == '\u2266') | (symbol == '\u2267'))
{
if (!ElementaryBinaryOperation.IsNumber(typeB))
{
throw new Exception("Illegal integer argument");
}
type = typeA;
return(this);
}
if (!typeA.Equals(typeB))
{
throw new Exception("Different types of integer");
}
type = typeA;
return(this);
}