May 28 22:56:01  <Warn> Therad id: 3 updating an instance of CompiledCode created by Thread id: 1
rubinius 4.1.c1 (2.3.1 9bef0d76 2019-05-28 8.0.0) [x86_64-darwin18.6.0] Ruby Exception hit toplevel: Thread id: 3 updating an instance of CompiledCode created by Thread id: 1 (RuntimeError)
--log-concurrent-update Log when T2 updates an object created by T1 --raise-concurrent-update Raise a RuntimeError when T2 updates an object created by T1
becomeas well, which will make programming proxies really nice :grinning:
f: A -> B, g: B -> Cfor composition of passes;
raiseon cross-thread access (mutation?)
Thread.new(heap: :shared)or something?