clear tryCatchTarget to release reference of function for gc (#4450)

* clear tryCatchTarget to release reference of function for gc * refactor(tryCatch): move clean of up tryCatchTarget to finally, clean up errorObject.e on call. * refactor(tryCatch): remove unnecessary `result` variable.
ReactiveX · Jan 9, 2019 · 9e90db1 · 9e90db1
1 parent 56614ee
commit 9e90db1
Showing 1 changed file with 3 additions and 0 deletions.
diff --git a/src/internal/util/tryCatch.ts b/src/internal/util/tryCatch.ts
@@ -3,11 +3,14 @@ import { errorObject } from './errorObject';
 let tryCatchTarget: Function;
 
 function tryCatcher(this: any): any {
+  errorObject.e = undefined;
   try {
     return tryCatchTarget.apply(this, arguments);
   } catch (e) {
     errorObject.e = e;
     return errorObject;
+  } finally {
+    tryCatchTarget = undefined;
   }
 }