From a587dd83321989b5331d593ea3edd4df30fee8f5 Mon Sep 17 00:00:00 2001
From: Fabian Guerra <fabian.guerra@mapbox.com>
Date: Thu, 30 Mar 2017 16:01:07 -0400
Subject: [ios] assertion to check if an annotationTag > 0

---
 platform/ios/src/MGLMapView.mm | 1 +
 1 file changed, 1 insertion(+)

diff --git a/platform/ios/src/MGLMapView.mm b/platform/ios/src/MGLMapView.mm
index 6ce41d6fb4..e12d4467af 100644
--- a/platform/ios/src/MGLMapView.mm
+++ b/platform/ios/src/MGLMapView.mm
@@ -3044,6 +3044,7 @@ public:
                 continue;
             }
             MGLAnnotationContext annotationContext = _annotationContextsByAnnotationTag.at(annotationTag);
+            NSAssert(_annotationContextsByAnnotationTag.count(annotationTag), @"Missing annotation for tag %u.", annotationTag);
             if (annotationContext.annotation)
             {
                 [annotations addObject:annotationContext.annotation];
-- 
cgit v1.2.1