version-bridge: remove setGlobalSingleton

Signed-off-by: Patrik Oldsberg <poldsberg@gmail.com>

packages/version-bridge/src/lib/VersionedContext.ts

@@ -15,7 +15,7 @@
  */
 
 import { createContext, useContext, Context } from 'react';
-import { getGlobalSingleton, setGlobalSingleton } from './globalObject';
+import { getGlobalSingleton } from './globalObject';
 import { createVersionedValueMap, VersionedValue } from './VersionedValue';
 
 export function useVersionedContext<
@@ -33,7 +33,9 @@ export function useVersionedContext<
 export function createVersionedContextForTesting(key: string) {
   return {
     set(versions: { [version in number]: unknown }) {
-      setGlobalSingleton(key, createContext(createVersionedValueMap(versions)));
+      (globalThis as any)[`__@backstage/${key}__`] = createContext(
+        createVersionedValueMap(versions),
+      );
     },
     reset() {
       delete (globalThis as any)[`__@backstage/${key}__`];

packages/version-bridge/src/lib/globalObject.ts

@@ -30,17 +30,6 @@ const globalObject = getGlobalObject();
 
 const makeKey = (id: string) => `__@backstage/${id}__`;
 
-/**
- * Used to provide a global singleton value, failing if it is already set.
- */
-export function setGlobalSingleton(id: string, value: unknown): void {
-  const key = makeKey(id);
-  if (key in globalObject) {
-    throw new Error(`Global ${id} is already set`);
-  }
-  globalObject[key] = value;
-}
-
 /**
  * Used to access a global singleton value, failing if it is not already set.
  */

packages/version-bridge/src/lib/index.ts

@@ -14,14 +14,10 @@
  * limitations under the License.
  */
 
-export {
-  getGlobalSingleton,
-  getOrCreateGlobalSingleton,
-  setGlobalSingleton,
-} from './globalObject';
+export { getGlobalSingleton, getOrCreateGlobalSingleton } from './globalObject';
 export {
   createVersionedContextForTesting,
   useVersionedContext,
-} from './versionedValues';
+} from './VersionedContext';
 export { createVersionedValueMap } from './VersionedValue';
 export type { VersionedValue } from './VersionedValue';