main function in @main types fails with error

[MaxDesiatov]

Describe the bug
This sample code fails immediately after it starts executing:

import JavaScriptEventLoop

@main
enum Main {
  static func main() async throws {
    JavaScriptEventLoop.installGlobalExecutor()
  }
}

Screenshots

Environment
SwiftWasm 5.6.0, carton 0.16.1

[kateinoigakukun]

It's expected behavior because async_Main calls exit(0) at the end of the initial job.

[MaxDesiatov]

My concern here is that uncaught JS error may lead to some unexpected/incorrect state, or at least confuse users. Maybe we should detect this specific exit(0) in our entrypoint code to make sure it's handled appropriately?

[kateinoigakukun]

@MaxDesiatov Yes, that should be handled by instance startup JS code.