[core] *Tile ↔ *TileData

Tile is now the main base class; RasterTile, VectorTile, etc are its subclasses. GeometryTileData and its subclasses form the piece that's passed to the worker.

src/mbgl/tile/tile.cpp

@@ -0,0 +1,37 @@
+#include <mbgl/tile/tile.hpp>
+#include <mbgl/tile/tile_observer.hpp>
+#include <mbgl/renderer/debug_bucket.hpp>
+#include <mbgl/util/string.hpp>
+
+namespace mbgl {
+
+static TileObserver nullObserver;
+
+Tile::Tile(const OverscaledTileID& id_)
+    : id(id_), observer(&nullObserver) {
+}
+
+Tile::~Tile() = default;
+
+void Tile::setObserver(TileObserver* observer_) {
+    observer = observer_;
+}
+
+void Tile::setTriedOptional() {
+    triedOptional = true;
+    observer->onNeedsRepaint();
+}
+
+void Tile::dumpDebugLogs() const {
+    Log::Info(Event::General, "Tile::id: %s", util::toString(id).c_str());
+    Log::Info(Event::General, "Tile::renderable: %s", isRenderable() ? "yes" : "no");
+    Log::Info(Event::General, "Tile::complete: %s", isComplete() ? "yes" : "no");
+}
+
+void Tile::queryRenderedFeatures(
+        std::unordered_map<std::string, std::vector<Feature>>&,
+        const GeometryCoordinates&,
+        const TransformState&,
+        const optional<std::vector<std::string>>&) {}
+
+} // namespace mbgl