Resolve fields when set values

Author: dungntm58

Sources/FormHook/Form.swift

@@ -279,15 +279,26 @@ public class FormControl<FieldName> where FieldName: Hashable {
         if options.contains(.shouldDirty) || !areEqual(first: value, second: instantFormState.defaultValues[name]) {
             instantFormState.dirtyFields.insert(name)
         }
-        if options.contains(.shouldValidate), let field = fields[name] {
-            let (result, messages) = await field.computeMessages()
-            instantFormState.errors.setMessages(name: name, messages: messages, isValid: result)
-            if !result {
+        guard options.contains(.shouldValidate) else {
+            return await syncFormState()
+        }
+        if let resolver = self.options.resolver {
+            let result = await resolver(instantFormState.formValues, self.options.context, [name])
+            switch result {
+            case .success:
+                break
+            case .failure(let e):
+                instantFormState.errors = instantFormState.errors.rewrite(from: e)
+                instantFormState.isValid = false
+            }
+        } else if let field = fields[name] {
+            let (isValid, messages) = await field.computeMessages()
+            instantFormState.errors.setMessages(name: name, messages: messages, isValid: isValid)
+            if !isValid {
                 instantFormState.isValid = false
             }
-            return await syncFormState()
         }
-        await syncFormState()
+        return await syncFormState()
     }
 
     public func getFieldState(name: FieldName) -> FieldState {

Sources/FormHook/Hook/UseController.swift

@@ -16,7 +16,7 @@ public func useController<FieldName, Value>(
     unregisterOption: UnregisterOption = []
 ) -> ControllerRenderOption<FieldName, Value> where FieldName: Hashable {
     let form = useContext(Context<FormControl<FieldName>>.self)
-    let registrationRef = useRef(form.register(name: name, options: RegisterOption(rules: rules, defaultValue: defaultValue, shouldUnregister: shouldUnregister)))
+    let registration = form.register(name: name, options: RegisterOption(rules: rules, defaultValue: defaultValue, shouldUnregister: shouldUnregister))
 
     let preservedChangedArray = [
         AnyEquatable(name),
@@ -33,7 +33,7 @@ public func useController<FieldName, Value>(
 
     let field = FieldOption(
         name: name,
-        value: registrationRef.current
+        value: registration
     )
     let fieldState = form.getFieldState(name: name)
     return (field: field, fieldState: fieldState, formState: form.instantFormState)