N-API mapnik.Map + tests (WIP) [skip ci]

Author: artemp

src/mapnik_datasource.cpp

@@ -57,9 +57,12 @@ Datasource::Datasource(Napi::CallbackInfo const& info)
     if (info[0].IsExternal())
     {
         auto ext = info[0].As<Napi::External<datasource_ptr>>();
-        if (ext) datasource_ = *ext.Data();
-        //if (datasource_->type() == mapnik::datasource::Raster) info.This().Set("type","raster");
-        //else info.This().Set("type","vector");
+        if (ext)
+        {
+            datasource_ = *ext.Data();
+            if (datasource_->type() == mapnik::datasource::Raster) info.This().As<Napi::Object>().Set("type","raster");
+            else info.This().As<Napi::Object>().Set("type","vector");
+        }
         return;
     }
 
@@ -92,8 +95,8 @@ Datasource::Datasource(Napi::CallbackInfo const& info)
         return;
      }
 
-    //if (datasource_->type() == mapnik::datasource::Raster) info.This().Set("type","raster");
-    //else info.This().Set("type","vector");
+    if (datasource_->type() == mapnik::datasource::Raster) info.This().As<Napi::Object>().Set("type","raster");
+    else info.This().As<Napi::Object>().Set("type","vector");
 }
 
 Napi::Value Datasource::parameters(Napi::CallbackInfo const& info)

src/mapnik_map.cpp

@@ -439,7 +439,7 @@ void Map::parameters(Napi::CallbackInfo const& info, Napi::Value const& value)
     mapnik::parameters params;
 
     Napi::Object obj = value.As<Napi::Object>();
-    Napi::Array names = obj.As<Napi::Array>();
+    Napi::Array names = obj.GetPropertyNames();
     std::size_t length = names.Length();
     for(std::size_t index = 0; index < length; ++index)
     {

src/mapnik_map.hpp

@@ -34,7 +34,6 @@ class Map : public Napi::ObjectWrap<Map>
     Napi::Value fromStringSync(Napi::CallbackInfo const& info);
     Napi::Value fromString(Napi::CallbackInfo const& info);
     Napi::Value clone(Napi::CallbackInfo const& info);
-
     // async rendering
     Napi::Value render(Napi::CallbackInfo const& info);
     Napi::Value renderFile(Napi::CallbackInfo const& info);