webpack + babel support

Trying to implement the new schema introduced by v0.10 I was stuck on error: SchemaSerializer error. See: https://docs.colyseus.io/migrating/0.10/#new-default-serializer.

The thing is I was using the new schema so I started debugging.

It turns out I was missing a room decorator: @serialize(SchemaSerializer) which isn’t mentioned anywhere in docs that you have to use.

The only context this decorator is mentioned in is with fossil serializer.

[Mykybo]

@endel The changes to the config in https://github.com/endel/coly-test/commit/c45d9d1ce6ce16b7a5db7b16f4f88ac6c599ce8e do allow the project to be compiled, room to be created and clients to join, however, state updates are not sent to client.

When I compile the same project with tsc, the updates start working.

[endel]

I’ve been playing around with this today, and I’ve managed to get rid of the SchemaSerializer error using this configuration: https://github.com/endel/coly-test/commit/c45d9d1ce6ce16b7a5db7b16f4f88ac6c599ce8e

The problem is deeper than it seems, though. Babel currently cannot play nicely with TypeScript’s (“legacy”) decorators, here are some relevant issues on their issue tracker:

• https://github.com/babel/babel/issues/9779
• https://github.com/babel/babel/issues/9773

I believe the root of this issue is because of the initializerDefineProperty_default calls generated by Babel, here:

let TestRoom_State = (_dec = Object(schema_["type"])("string"), _dec2 = Object(schema_["type"])("number"), (_class = (_temp = class State extends schema_["Schema"] {
  constructor() {
    super(...arguments);

    initializerDefineProperty_default()(this, "someAtr", _descriptor, this);
//...

Unfortunately I don’t know how high is for the Babel team to fix this.