From 9c55db89312428d809e90021e51b86c70e547306 Mon Sep 17 00:00:00 2001
From: Lucas Wojciechowski <lucas@mapbox.com>
Date: Tue, 20 Feb 2018 11:40:50 -0800
Subject: Fill in implementation of `void operator()(const ExpressionFilter&)`

---
 src/mbgl/style/conversion/stringify.hpp | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/mbgl/style/conversion/stringify.hpp b/src/mbgl/style/conversion/stringify.hpp
index fd1af4ba0c..0d1d4d85fb 100644
--- a/src/mbgl/style/conversion/stringify.hpp
+++ b/src/mbgl/style/conversion/stringify.hpp
@@ -226,8 +226,8 @@ public:
         stringifyUnaryFilter("!has", "$id");
     }
     
-    void operator()(const ExpressionFilter&) {
-        stringifyUnaryFilter("herp", "derp");
+    void operator()(const ExpressionFilter& filter) {
+        stringify(writer, filter.expression.serialize());
     }
 
 private:
-- 
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