[ios] override hash

mapbox · Oct 4, 2016 · 139b6d9 · 139b6d9
1 parent 9e17fd8
commit 139b6d9
Showing 1 changed file with 10 additions and 4 deletions.
diff --git a/platform/darwin/src/MGLPointAnnotation.m b/platform/darwin/src/MGLPointAnnotation.m
@@ -27,14 +27,14 @@ - (void)encodeWithCoder:(NSCoder *)coder
 
 - (BOOL)isEqual:(id)other
 {
-    if ( ! [other isKindOfClass:[self class]])
-    {
-        return NO;
-    }
     if (other == self)
     {
         return YES;
     }
+    if ( ! [other isKindOfClass:[self class]])
+    {
+        return NO;
+    }
 
     MGLPointAnnotation *otherAnnotation = other;
     return (self.coordinate.latitude == otherAnnotation.coordinate.latitude
@@ -43,6 +43,12 @@ - (BOOL)isEqual:(id)other
             && [self.subtitle isEqualToString:otherAnnotation.subtitle]);
 }
 
+- (NSUInteger)hash
+{
+    return @(self.coordinate.latitude).hash+@(self.coordinate.longitude).hash
+    +self.title.hash+self.subtitle.hash;
+}
+
 - (NSString *)description
 {
     return [NSString stringWithFormat:@"<%@: %p; title = %@; subtitle = %@; coordinate = %f, %f>",