Prevent the whole implementation of an anonymous inline action being …

…displayed on a transition (#148)

src/utils.ts

@@ -106,11 +106,16 @@ export function getEdges(stateNode: StateNode): Array<Edge<any, any, any>> {
  return edges;
 }
 
+const isStringifiedFunction = (str: string): boolean =>
+ /^function\s*\(/.test(str) || str.includes('=>');
+
 export const getActionLabel = (action: ActionObject<any, any>) => {
+ if (typeof action.exec === 'function') {
+ return isStringifiedFunction(action.type) ? 'anonymous' : action.type;
+ }
  if (action.type !== 'xstate.assign') {
  return action.type;
  }
-
  switch (typeof action.assignment) {
  case 'object':
  const keys = Object.keys(action.assignment).join();