public Maybe<Type> TryLookupActualType(LogicalType logicalType)
{
var result = _logicalToActualMappings.TryGetValue(logicalType);
if(!result.HasValue && !logicalType.IsOpenType)
{
var openActualType = _logicalToActualMappings.TryGetValue(logicalType.GetOpenType());
if (!openActualType.HasValue) return Maybe.NoValue;
var typeArguments = logicalType.TypeArguments
.Select(x => TryLookupActualType(x))
.Squash()
.ToArray();
var actualType = openActualType.Value;
if (typeArguments.Length == actualType.GetGenericArguments().Length)
return actualType.MakeGenericType(typeArguments).ToMaybe();
}
return result;
}
public void GetOpenType()
{
var logicalType = new LogicalType("tst", "Result", new[] { new LogicalType("sys", "Int32"), new LogicalType("sys", "String") }, Maybe.NoValue);
var openLogicalType = logicalType.GetOpenType();
openLogicalType.Equals(LogicalType.Parse("tst:Result`2")).Should().BeTrue();
}