updated core fn check

examples/react/effect/package.json

@@ -23,7 +23,7 @@
   "dependencies": {
     "@effect/schema": "^0.67.13",
     "@tanstack/effect-form-adapter": "workspace:^",
-    "@tanstack/react-form": "^0.20.0",
+    "@tanstack/react-form": "workspace:^0.20.2",
     "effect": "^3.2.5",
     "react": "^18.2.0",
     "react-dom": "^18.2.0"

packages/effect-form-adapter/package.json

@@ -29,7 +29,7 @@
   "main": "dist/cjs/index.cjs",
   "module": "dist/esm/index.js",
   "peerDependencies": {
-    "@effect/schema": "^0.67.13",
+    "@effect/schema": "^0.67.14",
     "effect": "^3.2.5"
   },
   "repository": "tanstack/form",
@@ -58,4 +58,4 @@
     "@effect/schema": "^0.67.14",
     "effect": "^3.2.5"
   }
-}
+}

packages/effect-form-adapter/src/validator.ts

@@ -1,7 +1,6 @@
 import * as Schema from '@effect/schema/Schema'
 import * as ArrayFormatter from '@effect/schema/ArrayFormatter'
 import * as Effect from 'effect/Effect'
-import * as Either from 'effect/Either'
 import * as Exit from 'effect/Exit'
 import * as Layer from 'effect/Layer'
 import * as ManagedRuntime from 'effect/ManagedRuntime'

packages/form-core/src/FieldApi.ts

@@ -10,6 +10,15 @@ import type {
 import type { AsyncValidator, SyncValidator, Updater } from './utils'
 import type { DeepKeys, DeepValue, NoInfer } from './util-types'
 
+function is_constructor(f: any) {
+  try {
+    Reflect.construct(String, [], f);
+  } catch (e) {
+    return false;
+  }
+  return true;
+}
+
 export type FieldValidateFn<
   TParentData,
   TName extends DeepKeys<TParentData>,
@@ -350,7 +359,7 @@ export class FieldApi<
       this.options.validatorAdapter,
     ] as const
     for (const adapter of adapters) {
-      if (adapter && typeof props.validate !== 'function') {
+      if (adapter && is_constructor(props.validate)) {
         return adapter()[props.type](
           props.value as never,
           props.validate,