option to skip validation on nested struct if value is nil

[twistedlog]

There should be an option to skip validation of a nested struct if the nested struct's value is nil.

[RussellLuo]

This library tries to be small and composite, so any specific option will break this rule.

In the use case you mentioned, you can achieve it by combining Assert and Lazy. See Nested struct pointer for an example.

[RussellLuo]

As a supplement, it seems impossible to check whether a nested struct is nil or not, without using reflection?

[twistedlog]

That's correct without refection its not possible, yes i think using Assert and Lazy in Any clause works.
Thanks.

[RussellLuo]

Yeah, Any(Assert(...), Lazy(...)) works :)

[RussellLuo]

@twistedlog I am going to close this issue, you can create a new one if you encountered other problems :)