[ios] override hash

mapbox · Dec 8, 2016 · 1530ef5 · 1530ef5
1 parent b3875e9
commit 1530ef5
Showing 1 changed file with 10 additions and 4 deletions.
diff --git a/platform/darwin/src/MGLPointAnnotation.mm b/platform/darwin/src/MGLPointAnnotation.mm
@@ -32,14 +32,14 @@ - (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
@@ -48,6 +48,12 @@ - (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>",