builders

This is useful for when you want to produce an A as an output. As long as you can produce an instance of all the fields of A, then you can produce an A. This differs from mapToInstance in that it allows a fallible Either[E, A].

Hint: You are almost certainly going to want to call ProductGeneric.typeClassInstance from within makeFieldValue.

Same as instanceFromLazyTypeClasses, except typed for the most common case of: summon[ TC[] ] => TC[]

This is useful for when you want to produce an A as an output. As long as you can produce an instance of all the fields of A, then you can produce an A. If you need a fallible Option[A] or Either[E, A], see optionMapToInstance or eitherMapToInstance.

Hint: You are almost certainly going to want to call ProductGeneric.typeClassInstance from within makeFieldValue.

This is useful when you want to get some Seq of "something else" out of your A.

Hint: You are almost certainly going to want to call ProductGeneric.typeClassInstance from within mapField.

This is useful for when you want to produce an A as an output. As long as you can produce an instance of all the fields of A, then you can produce an A. This differs from mapToInstance in that it allows a fallible Option[A].

Hint: You are almost certainly going to want to call ProductGeneric.typeClassInstance from within makeFieldValue.

This will summon instances for all fields. If no instance is found, you will receive a compile error.