Summary:This avoids flattening styles in most common cases. It diffs against the nested
arrays. The special case is when a property gets removed, it creates an object
that stores the removed keys which then gets resolved using a second pass
through the nested array.
You can conceptually think of this algorithm as:
1) Diff and store changes as you go
2) If something was removed, flatten as necessary
I also merged in another commit that renames the StyleSheetRegistry to ReactNativePropRegistry. There is nothing in here that makes it specific to styles anymore. That's just a decoupled view attribute configuration option. This registry can be used for any set of nested props, if we even want to keep this feature at all.
Reviewed By: vjeux
Differential Revision: D2492885
fb-gh-sync-id: c976ac28b7e63545132c36da0ee0c1c562e7c9e5
shipit-source-id: c976ac28b7e63545132c36da0ee0c1c562e7c9e5
433fb336af