ref(hub): Remove optional chaining (#4292)

Author: AbhiPrasad

packages/hub/src/hub.ts

@@ -415,13 +415,18 @@ export class Hub implements HubInterface {
    * @inheritDoc
    */
   public endSession(): void {
-    this.getStackTop()
-      ?.scope?.getSession()
-      ?.close();
+    const layer = this.getStackTop();
+    const scope = layer && layer.scope;
+    const session = scope && scope.getSession();
+    if (session) {
+      session.close();
+    }
     this._sendSessionUpdate();
 
     // the session is over; take it off of the scope
-    this.getStackTop()?.scope?.setSession();
+    if (scope) {
+      scope.setSession();
+    }
   }
 
   /**
@@ -575,7 +580,8 @@ export function getActiveDomain(): DomainAsCarrier | undefined {
  */
 function getHubFromActiveDomain(registry: Carrier): Hub {
   try {
-    const activeDomain = getMainCarrier().__SENTRY__?.extensions?.domain?.active;
+    const sentry = getMainCarrier().__SENTRY__;
+    const activeDomain = sentry && sentry.extensions && sentry.extensions.domain && sentry.extensions.domain.active;
 
     // If there's no active domain, just return global hub
     if (!activeDomain) {

packages/hub/src/scope.ts

@@ -264,12 +264,12 @@ export class Scope implements ScopeInterface {
     const span = this.getSpan() as undefined | (Span & { spanRecorder: { spans: Span[] } });
 
     // try it the new way first
-    if (span?.transaction) {
-      return span?.transaction;
+    if (span && span.transaction) {
+      return span.transaction;
     }
 
     // fallback to the old way (known bug: this only finds transactions with sampled = true)
-    if (span?.spanRecorder?.spans[0]) {
+    if (span && span.spanRecorder && span.spanRecorder.spans[0]) {
       return span.spanRecorder.spans[0] as Transaction;
     }
 
@@ -430,7 +430,7 @@ export class Scope implements ScopeInterface {
     // errors with transaction and it relies on that.
     if (this._span) {
       event.contexts = { trace: this._span.getTraceContext(), ...event.contexts };
-      const transactionName = this._span.transaction?.name;
+      const transactionName = this._span.transaction && this._span.transaction.name;
       if (transactionName) {
         event.tags = { transaction: transactionName, ...event.tags };
       }

packages/hub/src/sessionflusher.ts

@@ -83,14 +83,15 @@ export class SessionFlusher implements SessionFlusherLike {
       return;
     }
     const scope = getCurrentHub().getScope();
-    const requestSession = scope?.getRequestSession();
+    const requestSession = scope && scope.getRequestSession();
 
     if (requestSession && requestSession.status) {
       this._incrementSessionStatusCount(requestSession.status, new Date());
       // This is not entirely necessarily but is added as a safe guard to indicate the bounds of a request and so in
       // case captureRequestSession is called more than once to prevent double count
-      scope?.setRequestSession(undefined);
-
+      if (scope) {
+        scope.setRequestSession(undefined);
+      }
       /* eslint-enable @typescript-eslint/no-unsafe-member-access */
     }
   }