[darwin] Preflight argument validity before constructing mbgl::LatLng

1 files changed, 12 insertions, 0 deletions

diff --git a/platform/darwin/src/MGLGeometry_Private.h b/platform/darwin/src/MGLGeometry_Private.h
index e6b37b3530..ac0ff485aa 100644
--- a/platform/darwin/src/MGLGeometry_Private.h
+++ b/platform/darwin/src/MGLGeometry_Private.h
@@ -13,6 +13,18 @@
 CGRect MGLExtendRect(CGRect rect, CGPoint point);
 
 NS_INLINE mbgl::LatLng MGLLatLngFromLocationCoordinate2D(CLLocationCoordinate2D coordinate) {
+    if (std::isnan(coordinate.latitude)) {
+        [NSException raise:NSInvalidArgumentException format:@"latitude must not be NaN"];
+    }
+    if (std::isnan(coordinate.longitude)) {
+        [NSException raise:NSInvalidArgumentException format:@"longitude must not be NaN"];
+    }
+    if (std::abs(coordinate.latitude) > 90.0) {
+        [NSException raise:NSInvalidArgumentException format:@"latitude must be between -90 and 90"];
+    }
+    if (!std::isfinite(coordinate.longitude)) {
+        [NSException raise:NSInvalidArgumentException format:@"longitude must not be infinite"];
+    }
     return mbgl::LatLng(coordinate.latitude, coordinate.longitude);
 }