[ios, macos] Keep style attribute NSValue categories near enum declarations

Eliminated the separate NSValue+MGLStyleLayerAddition files, moving the categories into their respective style layer headers to be closer to the enumeration declarations.

1 files changed, 14 insertions, 0 deletions

diff --git a/platform/darwin/src/MGLFillStyleLayer.mm b/platform/darwin/src/MGLFillStyleLayer.mm
index 204a4e92cb..967014929f 100644
--- a/platform/darwin/src/MGLFillStyleLayer.mm
+++ b/platform/darwin/src/MGLFillStyleLayer.mm
@@ -231,3 +231,17 @@ namespace mbgl {
 
 
 @end
+
+@implementation NSValue (MGLFillStyleLayerAdditions)
+
++ (NSValue *)valueWithMGLFillTranslateAnchor:(MGLFillTranslateAnchor)fillTranslateAnchor {
+    return [NSValue value:&fillTranslateAnchor withObjCType:@encode(MGLFillTranslateAnchor)];
+}
+
+- (MGLFillTranslateAnchor)MGLFillTranslateAnchorValue {
+    MGLFillTranslateAnchor fillTranslateAnchor;
+    [self getValue:&fillTranslateAnchor];
+    return fillTranslateAnchor;
+}
+
+@end