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When working with custom validators, if the type is a container such as
Vec<T>
orOption<T>
, the validation function will get a reference to that container instead of the underlying data. This is in contrast with built-in validators that are able to extract the type from some container types such asOption<T>
.This PR builds on top of the existing implementations for slice-like containers by adding support for
Option<T>
to theinner
modifier.This allows you to easily use the same validation function for
T
as you do forOption<T>
orVec<T>
.