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-rw-r--r--src/mbgl/renderer/layers/render_line_layer.cpp1
1 files changed, 1 insertions, 0 deletions
diff --git a/src/mbgl/renderer/layers/render_line_layer.cpp b/src/mbgl/renderer/layers/render_line_layer.cpp
index fcd52b21df..92be7f3e11 100644
--- a/src/mbgl/renderer/layers/render_line_layer.cpp
+++ b/src/mbgl/renderer/layers/render_line_layer.cpp
@@ -21,6 +21,7 @@ namespace mbgl {
using namespace style;
inline const LineLayer::Impl& impl(const Immutable<style::Layer::Impl>& impl) {
+ if (impl->getTypeInfo() != LineLayer::Impl::staticTypeInfo()) abort();
return static_cast<const LineLayer::Impl&>(*impl);
}