1 files changed, 9 insertions, 0 deletions
diff --git a/src/mbgl/style/layers/line_layer_impl.cpp b/src/mbgl/style/layers/line_layer_impl.cpp
index 16a164eb9d..bee88d6a47 100644
--- a/src/mbgl/style/layers/line_layer_impl.cpp
+++ b/src/mbgl/style/layers/line_layer_impl.cpp
@@ -3,5 +3,14 @@
 namespace mbgl {
 namespace style {
 
+bool LineLayer::Impl::hasLayoutDifference(const Layer::Impl& other) const {
+    assert(dynamic_cast<const LineLayer::Impl*>(&other));
+    const auto& impl = static_cast<const style::LineLayer::Impl&>(other);
+    return filter     != impl.filter ||
+           visibility != impl.visibility ||
+           layout     != impl.layout ||
+           paint.hasDataDrivenPropertyDifference(impl.paint);
+}
+
 } // namespace style
 } // namespace mbgl