How to throw ArgumentNullException instead of returning default when source is null

[gpetrou]

Currently, I see in the generated code the first check is:

if (source == null)
    return default;

Is it possible to configure this to have the following instead?

if (source == null)
    throw new ArgumentNullException(nameof(source));

[latonz]

Are your classes / your mapper definition in a nullable disabled or enabled context?

If only your parameter is nullable but your return type is not nullable, throwing is the default behaviour. It can be customized with the ThrowOnMappingNullMismatch property on the MapperAttribute. The customization is not possible if the return type is also nullable.