From cf3965793b72520b21a77f0f7db85d4e32766f69 Mon Sep 17 00:00:00 2001
From: Mikhail Pozdnyakov <mikhail.pozdnyakov@mapbox.com>
Date: Mon, 19 Aug 2019 14:09:34 +0300
Subject: [core] Reproduce layer impl cast problem

---
 src/mbgl/renderer/layers/render_background_layer.cpp     | 2 ++
 src/mbgl/renderer/layers/render_circle_layer.cpp         | 1 +
 src/mbgl/renderer/layers/render_custom_layer.cpp         | 1 +
 src/mbgl/renderer/layers/render_fill_extrusion_layer.cpp | 1 +
 src/mbgl/renderer/layers/render_fill_layer.cpp           | 1 +
 src/mbgl/renderer/layers/render_heatmap_layer.cpp        | 1 +
 src/mbgl/renderer/layers/render_hillshade_layer.cpp      | 1 +
 src/mbgl/renderer/layers/render_line_layer.cpp           | 1 +
 src/mbgl/renderer/layers/render_raster_layer.cpp         | 1 +
 9 files changed, 10 insertions(+)

diff --git a/src/mbgl/renderer/layers/render_background_layer.cpp b/src/mbgl/renderer/layers/render_background_layer.cpp
index 4725bce435..5cce471601 100644
--- a/src/mbgl/renderer/layers/render_background_layer.cpp
+++ b/src/mbgl/renderer/layers/render_background_layer.cpp
@@ -16,7 +16,9 @@ namespace mbgl {
 
 using namespace style;
 
+
 inline const BackgroundLayer::Impl& impl(const Immutable<style::Layer::Impl>& impl) {
+    if(impl->getTypeInfo() != BackgroundLayer::Impl::staticTypeInfo()) abort();
     return static_cast<const style::BackgroundLayer::Impl&>(*impl);
 }
 
diff --git a/src/mbgl/renderer/layers/render_circle_layer.cpp b/src/mbgl/renderer/layers/render_circle_layer.cpp
index 4f1620364f..64812ba055 100644
--- a/src/mbgl/renderer/layers/render_circle_layer.cpp
+++ b/src/mbgl/renderer/layers/render_circle_layer.cpp
@@ -16,6 +16,7 @@ namespace mbgl {
 using namespace style;
 
 inline const style::CircleLayer::Impl& impl(const Immutable<style::Layer::Impl>& impl) {
+    if (impl->getTypeInfo() != CircleLayer::Impl::staticTypeInfo()) abort();
     return static_cast<const style::CircleLayer::Impl&>(*impl);
 }
 
diff --git a/src/mbgl/renderer/layers/render_custom_layer.cpp b/src/mbgl/renderer/layers/render_custom_layer.cpp
index 75c21997b0..eeef7d742b 100644
--- a/src/mbgl/renderer/layers/render_custom_layer.cpp
+++ b/src/mbgl/renderer/layers/render_custom_layer.cpp
@@ -15,6 +15,7 @@ namespace mbgl {
 using namespace style;
 
 inline const CustomLayer::Impl& impl(const Immutable<style::Layer::Impl>& impl) {
+    if (impl->getTypeInfo() != CustomLayer::Impl::staticTypeInfo()) abort();
     return static_cast<const CustomLayer::Impl&>(*impl);
 }
 
diff --git a/src/mbgl/renderer/layers/render_fill_extrusion_layer.cpp b/src/mbgl/renderer/layers/render_fill_extrusion_layer.cpp
index 3c97ab7431..a5146964f1 100644
--- a/src/mbgl/renderer/layers/render_fill_extrusion_layer.cpp
+++ b/src/mbgl/renderer/layers/render_fill_extrusion_layer.cpp
@@ -21,6 +21,7 @@ namespace mbgl {
 using namespace style;
 
 inline const FillExtrusionLayer::Impl& impl(const Immutable<style::Layer::Impl>& impl) {
+    if (impl->getTypeInfo() != FillExtrusionLayer::Impl::staticTypeInfo()) abort();
     return static_cast<const FillExtrusionLayer::Impl&>(*impl);
 }
 
diff --git a/src/mbgl/renderer/layers/render_fill_layer.cpp b/src/mbgl/renderer/layers/render_fill_layer.cpp
index 6a134a398a..aecc5d6bf5 100644
--- a/src/mbgl/renderer/layers/render_fill_layer.cpp
+++ b/src/mbgl/renderer/layers/render_fill_layer.cpp
@@ -22,6 +22,7 @@ namespace mbgl {
 using namespace style;
 
 inline const FillLayer::Impl& impl(const Immutable<style::Layer::Impl>& impl) {
+    if (impl->getTypeInfo() != FillLayer::Impl::staticTypeInfo()) abort();
     return static_cast<const FillLayer::Impl&>(*impl);
 }
 
diff --git a/src/mbgl/renderer/layers/render_heatmap_layer.cpp b/src/mbgl/renderer/layers/render_heatmap_layer.cpp
index 478a8f8c47..b5be02a5a4 100644
--- a/src/mbgl/renderer/layers/render_heatmap_layer.cpp
+++ b/src/mbgl/renderer/layers/render_heatmap_layer.cpp
@@ -20,6 +20,7 @@ namespace mbgl {
 using namespace style;
 
 inline const HeatmapLayer::Impl& impl(const Immutable<Layer::Impl>& impl) {
+    if (impl->getTypeInfo() != HeatmapLayer::Impl::staticTypeInfo()) abort();
     return static_cast<const HeatmapLayer::Impl&>(*impl);
 }
 
diff --git a/src/mbgl/renderer/layers/render_hillshade_layer.cpp b/src/mbgl/renderer/layers/render_hillshade_layer.cpp
index 2c7e0aef86..970c6fd924 100644
--- a/src/mbgl/renderer/layers/render_hillshade_layer.cpp
+++ b/src/mbgl/renderer/layers/render_hillshade_layer.cpp
@@ -19,6 +19,7 @@ namespace mbgl {
 using namespace style;
 
 inline const HillshadeLayer::Impl& impl(const Immutable<style::Layer::Impl>& impl) {
+    if (impl->getTypeInfo() != HillshadeLayer::Impl::staticTypeInfo()) abort();
     return static_cast<const HillshadeLayer::Impl&>(*impl);
 }
 
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);
 }
 
diff --git a/src/mbgl/renderer/layers/render_raster_layer.cpp b/src/mbgl/renderer/layers/render_raster_layer.cpp
index 82d135b9ef..5924dfe937 100644
--- a/src/mbgl/renderer/layers/render_raster_layer.cpp
+++ b/src/mbgl/renderer/layers/render_raster_layer.cpp
@@ -15,6 +15,7 @@ namespace mbgl {
 using namespace style;
 
 inline const RasterLayer::Impl& impl(const Immutable<style::Layer::Impl>& impl) {
+    if (impl->getTypeInfo() != RasterLayer::Impl::staticTypeInfo()) abort();
     return static_cast<const RasterLayer::Impl&>(*impl);
 }
 
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