/// <summary>
/// create and expression ( operator ";" )
/// </summary>
/// <param name="visitor"></param>
/// <param name="context"></param>
/// <typeparam name="T"></typeparam>
/// <returns></returns>
public static Expression <Func <T, bool> > GetAndExpression <T>(
IRSqlQueryVisitor <Expression <Func <T, bool> > > visitor, RSqlQueryParser.AndContext context)
{
if (visitor == null)
{
throw new ArgumentNullException(nameof(visitor));
}
if (context == null)
{
throw new ArgumentNullException(nameof(context));
}
var right = context.constraint()[0].Accept(visitor);
if (context.constraint().Length == 1)
{
return(right);
}
for (var i = 1; i < context.constraint().Length; i++)
{
var left = context.constraint()[i].Accept(visitor);
right = Expression.Lambda <Func <T, bool> >(Expression.And(left.Body, right.Body), left.Parameters);
}
return(right);
}
