feat(jest-resolve): expose ResolverOptions type

CHANGELOG.md

@@ -2,6 +2,8 @@
 
 ### Features
 
+- `[jest-resolve]` Expose `ResolverOptions` type ([#12736](https://github.com/facebook/jest/pull/12736))
+
 ### Fixes
 
 ### Chore & Maintenance

packages/jest-resolve/__typetests__/resolver.test.ts

@@ -12,6 +12,7 @@ import type {
   PackageFilter,
   PackageJSON,
   PathFilter,
+  ResolverOptions,
   SyncResolver,
 } from 'jest-resolve';
 
@@ -42,6 +43,21 @@ const pathFilter = (pkg: PackageJSON, path: string, relativePath: string) =>
 
 expectAssignable<PathFilter>(pathFilter);
 
+// ResolverOptions
+
+function customSyncResolver(path: string, options: ResolverOptions): string {
+  return path;
+}
+expectAssignable<SyncResolver>(customSyncResolver);
+
+async function customAsyncResolver(
+  path: string,
+  options: ResolverOptions,
+): Promise<string> {
+  return path;
+}
+expectAssignable<AsyncResolver>(customAsyncResolver);
+
 // AsyncResolver
 
 const asyncResolver: AsyncResolver = async (path, options) => {

packages/jest-resolve/src/defaultResolver.ts

@@ -37,7 +37,7 @@ export type PackageFilter = (
 ) => PackageJSON;
 
 /**
- * Allows transforms a path within a package.
+ * Allows transforming a path within a package.
  *
  * @param pkg - Parsed `package.json` contents.
  * @param path - Path being resolved.
@@ -51,7 +51,7 @@ export type PathFilter = (
   relativePath: string,
 ) => string;
 
-type ResolverOptions = {
+export type ResolverOptions = {
   /** Directory to begin resolving from. */
   basedir: string;
   /** List of export conditions. */

packages/jest-resolve/src/index.ts

@@ -12,6 +12,7 @@ export type {
   SyncResolver,
   PackageFilter,
   PathFilter,
+  ResolverOptions,
 } from './defaultResolver';
 export type {
   FindNodeModuleConfig,