keyed_form_core
Shared vocabulary for the keyed_form family. It sits on
keyed_lens and below
keyed_form_schema / keyed_form —
you normally reach it transitively, not by importing it directly.
What it gives the form layers
| Name | Is | For |
|---|---|---|
FieldRef<R, V> |
alias of AffineLens<R, V> |
a typed handle to a field that may not resolve (removed row, null sub-struct, wrong union variant) |
StrictFieldRef<R, V> |
alias of Lens<R, V> |
a field that always resolves — get is non-null |
VariantRef<S, V> |
alias of Prism<S, V> |
narrowing to one variant of a sum type |
DelegatingFieldRef<R, V> |
extends AffineLens |
base the generated <X>FieldRefs wrappers extend — holds an inner ref and forwards key/find/set |
.whenPresent() / .narrow() / .at() |
extensions on FieldRef |
refine a nullable field · narrow a union · descend into a list row by id |
FieldErrors<E> |
FieldKey-keyed sidecar map |
validation messages (or any per-field E) |
@keyedSchema / KeyedSchema |
annotation | marks a library for keyed_form_gen |
The raw optic names (Lens / AffineLens / Prism / ListItemLens) are
not re-exported here — the aliases are complete substitutes. Import
package:keyed_lens/keyed_lens.dart directly only for standalone optics work.
Libraries
- keyed_form_core
- Shared vocabulary for the keyed_form family.