1 files changed, 19 insertions, 4 deletions
diff --git a/src/mbgl/style/sources/vector_source_impl.cpp b/src/mbgl/style/sources/vector_source_impl.cpp
index 158abf8575..aab62acf3f 100644
--- a/src/mbgl/style/sources/vector_source_impl.cpp
+++ b/src/mbgl/style/sources/vector_source_impl.cpp
@@ -1,16 +1,31 @@
 #include <mbgl/style/sources/vector_source_impl.hpp>
 #include <mbgl/renderer/sources/render_vector_source.hpp>
-#include <mbgl/util/constants.hpp>
 
 namespace mbgl {
 namespace style {
 
-VectorSource::Impl::Impl(std::string id_, Source& base_, variant<std::string, Tileset> urlOrTileset_)
-    : TileSourceImpl(SourceType::Vector, std::move(id_), base_, std::move(urlOrTileset_), util::tileSize) {
+VectorSource::Impl::Impl(std::string id_)
+    : Source::Impl(SourceType::Vector, std::move(id_)) {
+}
+
+VectorSource::Impl::Impl(const Impl& other, Tileset tileset_)
+    : Source::Impl(other),
+      tileset(std::move(tileset_)) {
+}
+
+optional<Tileset> VectorSource::Impl::getTileset() const {
+    return tileset;
+}
+
+optional<std::string> VectorSource::Impl::getAttribution() const {
+    if (!tileset) {
+        return {};
+    }
+    return tileset->attribution;
 }
 
 std::unique_ptr<RenderSource> VectorSource::Impl::createRenderSource() const {
-    return std::make_unique<RenderVectorSource>(*this);
+    return std::make_unique<RenderVectorSource>(staticImmutableCast<VectorSource::Impl>(immutableFromThis()));
 }
 
 } // namespace style