From 9dfc2d924d440560adb2db13c758b2c5b3b7dd47 Mon Sep 17 00:00:00 2001
From: John Firebaugh <john.firebaugh@gmail.com>
Date: Wed, 31 May 2017 13:53:48 -0700
Subject: [core] Collection-level immutability

Introduce a second level of immutability, over each of the collections held by a style: sources, images, and layers. Tracking immutability at this level allows us to short-circuit significant portions of the RenderStyle update logic via a simple equality check, greatly improving performance.
---
 cmake/core-files.cmake | 1 +
 1 file changed, 1 insertion(+)

(limited to 'cmake')

diff --git a/cmake/core-files.cmake b/cmake/core-files.cmake
index 47a5d16a1b..44e4f40f19 100644
--- a/cmake/core-files.cmake
+++ b/cmake/core-files.cmake
@@ -331,6 +331,7 @@ set(MBGL_CORE_FILES
     include/mbgl/style/transition_options.hpp
     include/mbgl/style/types.hpp
     include/mbgl/style/undefined.hpp
+    src/mbgl/style/collection.hpp
     src/mbgl/style/image.cpp
     src/mbgl/style/image_impl.cpp
     src/mbgl/style/image_impl.hpp
-- 
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