[core] Calculate hasPendingTransitions functionally rather than statefully

1 files changed, 3 insertions, 1 deletions

diff --git a/src/mbgl/renderer/render_fill_extrusion_layer.cpp b/src/mbgl/renderer/render_fill_extrusion_layer.cpp
index 70ee74b56e..f6ba164d8c 100644
--- a/src/mbgl/renderer/render_fill_extrusion_layer.cpp
+++ b/src/mbgl/renderer/render_fill_extrusion_layer.cpp
@@ -24,12 +24,14 @@ void RenderFillExtrusionLayer::cascade(const CascadeParameters& parameters) {
     unevaluated = impl->cascading.cascade(parameters, std::move(unevaluated));
 }
 
-bool RenderFillExtrusionLayer::evaluate(const PropertyEvaluationParameters& parameters) {
+void RenderFillExtrusionLayer::evaluate(const PropertyEvaluationParameters& parameters) {
     evaluated = unevaluated.evaluate(parameters);
 
     passes = (evaluated.get<style::FillExtrusionOpacity>() > 0) ? RenderPass::Translucent
                                                          : RenderPass::None;
+}
 
+bool RenderFillExtrusionLayer::hasTransition() const {
     return unevaluated.hasTransition();
 }