diff options
Diffstat (limited to 'platform/darwin/src/MGLStyleLayer_Private.h')
| -rw-r--r-- | platform/darwin/src/MGLStyleLayer_Private.h | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/platform/darwin/src/MGLStyleLayer_Private.h b/platform/darwin/src/MGLStyleLayer_Private.h index d024a0bb13..ed8ec31755 100644 --- a/platform/darwin/src/MGLStyleLayer_Private.h +++ b/platform/darwin/src/MGLStyleLayer_Private.h @@ -7,6 +7,14 @@ NS_ASSUME_NONNULL_BEGIN +// A struct to be stored in the `peer` member of mbgl::style::Layer, in order to implement +// object identity. We don't store a MGLStyleLayer pointer directly because that doesn't +// interoperate with ARC. The inner pointer is weak in order to avoid a reference cycle for +// "pending" MGLStyleLayers, which have a strong owning pointer to the mbgl::style::Layer. +struct LayerWrapper { + __weak MGLStyleLayer *layer; +}; + /** Assert that the style layer is valid. |