jest-transform: Fix optional type for getCacheKey in transform (#9138)

jestjs · Nov 6, 2019 · 8da17b9 · 8da17b9
1 parent e3f4c65
commit 8da17b9
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/packages/jest-transform/src/types.ts b/packages/jest-transform/src/types.ts
@@ -56,7 +56,7 @@ export interface Transformer {
   canInstrument?: boolean;
   createTransformer?: (options?: any) => Transformer;
 
-  getCacheKey: (
+  getCacheKey?: (
     fileData: string,
     filePath: Config.Path,
     configStr: string,