invert init logic

Author: armcknight

Sources/Sentry/SentryDispatchSourceWrapper.m

@@ -11,16 +11,14 @@ - (instancetype)initTimerWithInterval:(uint64_t)interval
                                 queue:(SentryDispatchQueueWrapper *)queueWrapper
                          eventHandler:(void (^)(void))eventHandler
 {
-    if (!(self = [super init])) {
-        return nil;
+    if (self = [super init]) {
+        _queueWrapper = queueWrapper;
+        _source = dispatch_source_create(DISPATCH_SOURCE_TYPE_TIMER, 0, 0, queueWrapper.queue);
+        dispatch_source_set_event_handler(_source, eventHandler);
+        dispatch_source_set_timer(
+            _source, dispatch_time(DISPATCH_TIME_NOW, interval), interval, leeway);
+        dispatch_resume(_source);
     }
-
-    _queueWrapper = queueWrapper;
-    _source = dispatch_source_create(DISPATCH_SOURCE_TYPE_TIMER, 0, 0, queueWrapper.queue);
-    dispatch_source_set_event_handler(_source, eventHandler);
-    dispatch_source_set_timer(
-        _source, dispatch_time(DISPATCH_TIME_NOW, interval), interval, leeway);
-    dispatch_resume(_source);
     return self;
 }