Assert if -mapView:symbolNameForAnnotation: is implemented

Fixes #1851.
2015-07-08 12:41:34 -07:00
parent aa51c15670
commit b3ea068e5d
1 changed files with 8 additions and 0 deletions
--- a/platform/ios/MGLMapView.mm
+++ b/platform/ios/MGLMapView.mm
@@ -455,6 +455,14 @@ std::chrono::steady_clock::duration secondsAsDuration(float duration)
    if (_delegate == delegate) return;

    _delegate = delegate;
+    
+    if ([delegate respondsToSelector:@selector(mapView:symbolNameForAnnotation:)])
+    {
+        [NSException raise:@"Method unavailable" format:
+         @"-mapView:symbolNameForAnnotation: has been removed from the MGLMapViewDelegate protocol, but %@ still implements it. "
+         @"Implement -[%@ mapView:imageForAnnotation:] instead.",
+         NSStringFromClass([delegate class]), NSStringFromClass([delegate class])];
+    }
 }

 #pragma mark - Layout -