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path: root/src/mbgl/sprite/sprite_parser.hpp
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Diffstat (limited to 'src/mbgl/sprite/sprite_parser.hpp')
-rw-r--r--src/mbgl/sprite/sprite_parser.hpp2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/mbgl/sprite/sprite_parser.hpp b/src/mbgl/sprite/sprite_parser.hpp
index f2e7358ac2..7d545a6d98 100644
--- a/src/mbgl/sprite/sprite_parser.hpp
+++ b/src/mbgl/sprite/sprite_parser.hpp
@@ -17,7 +17,7 @@ std::unique_ptr<style::Image> createStyleImage(const std::string& id,
bool sdf,
style::ImageStretches&& stretchX = {},
style::ImageStretches&& stretchY = {},
- optional<style::ImageContent> content = nullopt);
+ const optional<style::ImageContent>& content = nullopt);
// Parses an image and an associated JSON file and returns the sprite objects.
std::vector<Immutable<style::Image::Impl>> parseSprite(const std::string& image, const std::string& json);