Function wrapHandlerFunc

plugins/jsvm/binds.go:181–213

(executors *vmsPool, handler goja.Value)

}

func wrapHandlerFunc(executors *vmsPool, handler goja.Value) (func(*core.RequestEvent) error, error) {
	if handler == nil {
		return nil, errors.New("handler must be non-nil")
	}

	switch h := handler.Export().(type) {
	case func(*core.RequestEvent) error:
		// "native" handler func - no need to wrap
		return h, nil
	case func(goja.FunctionCall) goja.Value, string:
		pr := goja.MustCompile(defaultScriptPath, "{("+handler.String()+").apply(undefined, __args)}", true)

		wrappedHandler := func(e *core.RequestEvent) error {
			return executors.run(func(executor *goja.Runtime) error {
				executor.Set("$app", e.App) // overwrite the global $app with the hook scoped instance
				executor.Set("__args", []any{e})
				res, err := executor.RunProgram(pr)
				executor.Set("__args", goja.Undefined())

				// check for returned Go error value
				if resErr := checkGojaValueForError(e.App, res); resErr != nil {
					return resErr
				}

				return normalizeException(err)
			})
		}

		return wrappedHandler, nil
	default:
		return nil, errors.New("unsupported goja handler type")
	}
}

type gojaHookHandler struct {
	id             string