public Aggregate(Expression target, FunctionName funcName, params string[] args)
: base(target, funcName, args)
{
selectionPath = args != null && args.Length > 0 ? args[0] : null;
var targetType = target.Type;
var methodName = funcName.ToString();
callInfo = supportedMethods.FirstOrDefault(m =>
m.TargetType == targetType && m.MethodName.Equals(methodName, StringComparison.OrdinalIgnoreCase));
if (callInfo == null)
{
if (targetType.IsGenericType)
{
var argType = targetType.GetGenericArguments()[0];
callInfo = new MethodInspect(methodName, targetType, argType, typeof(Enumerable));
}
else if (targetType.IsArray)
{
var argType = targetType.GetElementType();
callInfo = new MethodInspect(methodName, targetType, argType, typeof(Enumerable));
}
}
if (callInfo == null)
{
throw new NotSupportedException("Operator in condition is not supported for field type");
}
}
public SelectMany(Expression target, params string[] args) : base(target, FunctionName.SelectMany, args)
{
if (args == null || args.Length != 1)
{
throw new ArgumentException($"Exactly one argument is required for function '{FunctionName.SelectMany}'");
}
selectionPath = args[0];
callInfo = new MethodInspect("SelectMany", target.Type, typeof(string), typeof(Enumerable));
}
