Merge commit '7621e2f8dec938cf48181c8b10afc9b01f444e68' into beta

Tests/LottieMetalTest/LottieSwift/Sources/Private/Model/Layers/LayerModel.cpp

@@ -0,0 +1,45 @@
+#include "LayerModel.hpp"
+
+namespace lottie {
+
+LayerType parseLayerType(json11::Json::object const &json, std::string const &key) {
+    if (const auto layerTypeValue = getOptionalInt(json, "ty")) {
+        switch (layerTypeValue.value()) {
+            case 0:
+                return LayerType::Precomp;
+            case 1:
+                return LayerType::Solid;
+            case 2:
+                return LayerType::Image;
+            case 3:
+                return LayerType::Null;
+            case 4:
+                return LayerType::Shape;
+            case 5:
+                return LayerType::Text;
+            default:
+                return LayerType::Null;
+        }
+    } else {
+        return LayerType::Null;
+    }
+}
+
+int serializeLayerType(LayerType value) {
+    switch (value) {
+        case LayerType::Precomp:
+            return 0;
+        case LayerType::Solid:
+            return 1;
+        case LayerType::Image:
+            return 2;
+        case LayerType::Null:
+            return 3;
+        case LayerType::Shape:
+            return 4;
+        case LayerType::Text:
+            return 5;
+    }
+}
+
+}