Update nan (#80)

* Update nan
* Update node version
* Update API usage

Author: sadick254

.travis.yml

@@ -9,7 +9,7 @@ notifications:
 node_js:
   - "8"
   - "10"
-  - "12"
+  - "12.14.1"
 
 before_install:
   - export CXX="g++-4.9" CC="gcc-4.9"

appveyor.yml

@@ -3,7 +3,7 @@ image: Visual Studio 2015
 environment:
   matrix:
   - nodejs_version: "8"
-  - nodejs_version: "10"
+  - nodejs_version: "12.14.1"
 
 platform:
   - x86

package.json

@@ -31,7 +31,7 @@
   },
   "homepage": "https://github.com/atom/superstring",
   "dependencies": {
-    "nan": "^2.13.2"
+    "nan": "^2.14.2"
   },
   "devDependencies": {
     "chai": "^2.0.0",

src/bindings/marker-index-wrapper.cc

@@ -109,19 +109,24 @@ Local<Set> MarkerIndexWrapper::marker_ids_set_to_js(const MarkerIndex::MarkerIdS
 
 Local<Array> MarkerIndexWrapper::marker_ids_vector_to_js(const std::vector<MarkerIndex::MarkerId> &marker_ids) {
   Local<Array> js_array = Nan::New<Array>(marker_ids.size());
+
+  Isolate *isolate = v8::Isolate::GetCurrent();
+  Local<Context> context = isolate->GetCurrentContext();
   for (size_t i = 0; i < marker_ids.size(); i++) {
-    Nan::Set(js_array, i, Nan::New<Integer>(marker_ids[i]));
+    js_array->Set(context, i, Nan::New<Integer>(marker_ids[i]));
   }
   return js_array;
 }
 
 Local<Object> MarkerIndexWrapper::snapshot_to_js(const unordered_map<MarkerIndex::MarkerId, Range> &snapshot) {
   Local<Object> result_object = Nan::New<Object>();
+  Isolate *isolate = v8::Isolate::GetCurrent();
+  Local<Context> context = isolate->GetCurrentContext();
   for (auto &pair : snapshot) {
     Local<Object> range = Nan::New<Object>();
-    Nan::Set(range, Nan::New(start_string), PointWrapper::from_point(pair.second.start));
-    Nan::Set(range, Nan::New(end_string), PointWrapper::from_point(pair.second.end));
-    Nan::Set(result_object, Nan::New<Integer>(pair.first), range);
+    range->Set(context, Nan::New(start_string), PointWrapper::from_point(pair.second.start));
+    range->Set(context, Nan::New(end_string), PointWrapper::from_point(pair.second.end));
+    result_object->Set(context, Nan::New<Integer>(pair.first), range);
   }
   return result_object;
 }