From 3601edd51b0809ac5fd8759b2f0cbc9882f1a99a Mon Sep 17 00:00:00 2001
From: Anand Thakker <github@anandthakker.net>
Date: Tue, 16 Jan 2018 08:44:10 -0500
Subject: Just use PropertyEvaluator<Color> instead of specialized
 'NoopPropertyEvaluator'

---
 include/mbgl/style/heatmap_color_property_value.hpp | 10 ++--------
 src/mbgl/style/paint_property.hpp                   |  2 +-
 2 files changed, 3 insertions(+), 9 deletions(-)

diff --git a/include/mbgl/style/heatmap_color_property_value.hpp b/include/mbgl/style/heatmap_color_property_value.hpp
index 98640c2a41..1c642f66b9 100644
--- a/include/mbgl/style/heatmap_color_property_value.hpp
+++ b/include/mbgl/style/heatmap_color_property_value.hpp
@@ -3,17 +3,10 @@
 #include <mbgl/util/variant.hpp>
 #include <mbgl/style/undefined.hpp>
 #include <mbgl/style/function/camera_function.hpp>
-#include <mbgl/renderer/property_evaluation_parameters.hpp>
 
 namespace mbgl {
 namespace style {
 
-class NoopPropertyEvaluator {
-public:
-    using ResultType = Color;
-    NoopPropertyEvaluator(const PropertyEvaluationParameters&, Color) {}
-};
-
 /*
  * Special-case implementation of (a subset of) the PropertyValue<T> interface
  * used for building the HeatmapColor paint property traits class.
@@ -37,7 +30,8 @@ public:
     bool isUndefined() const { return value.get() != nullptr; }
 
     // noop, needed for batch evaluation of paint property values to compile
-    Color evaluate(const NoopPropertyEvaluator&, TimePoint = {}) const { return {}; }
+    template <typename Evaluator>
+    Color evaluate(const Evaluator&, TimePoint = {}) const { return {}; }
     bool isDataDriven()     const { return false; }
     bool hasDataDrivenPropertyDifference(const HeatmapColorPropertyValue&) const { return false; }
 };
diff --git a/src/mbgl/style/paint_property.hpp b/src/mbgl/style/paint_property.hpp
index a16f58eb57..195eb645a9 100644
--- a/src/mbgl/style/paint_property.hpp
+++ b/src/mbgl/style/paint_property.hpp
@@ -63,7 +63,7 @@ class HeatmapColor {
 public:
     using TransitionableType = Transitionable<HeatmapColorPropertyValue>;
     using UnevaluatedType = Transitioning<HeatmapColorPropertyValue>;
-    using EvaluatorType = NoopPropertyEvaluator;
+    using EvaluatorType = PropertyEvaluator<Color>;
     using PossiblyEvaluatedType = Color;
     using Type = Color;
     static constexpr bool IsDataDriven = false;
-- 
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