struct Server {} fn (server Server) non_mutable_receiver() { println(@LOCATION) } fn (mut s Server) mutable_receiver() { println(@LOCATION) } fn (s &Server) reference_receiver() { println(@LOCATION) } fn test_spawning_threads_with_methods_that_have_mutable_and_non_mutable_receivers() { mut server := &Server{} t1 := spawn server.non_mutable_receiver() t2 := spawn server.mutable_receiver() t3 := spawn server.reference_receiver() t1.wait() t2.wait() t3.wait() }