The dreaded "throwing after await"

This might be completely expected, I’m not completely up-to-date on the state of node.js, but:

Repro steps

git clone https://github.com/fasterthanlime/async-test && cd async-test
npm i
npm start

Versions

$ node --version
v8.0.0

$ npm list
async-test@1.0.0 C:\msys64\home\amwenger\Dev\async-test
`-- trace@3.0.0
  `-- stack-chain@1.3.7

Output

=================================
 Throwing first thing
=================================
Full stack trace:
Error: throwing first thing
    at cherrypie (C:\msys64\home\amwenger\Dev\async-test\index.js:12:13)
    at binomial (C:\msys64\home\amwenger\Dev\async-test\index.js:14:40)
    at abacus (C:\msys64\home\amwenger\Dev\async-test\index.js:15:38)
    at main (C:\msys64\home\amwenger\Dev\async-test\index.js:16:22)
    at Object.<anonymous> (C:\msys64\home\amwenger\Dev\async-test\index.js:34:1)
    at Module._compile (module.js:569:30)
    at Object.Module._extensions..js (module.js:580:10)
    at Module.load (module.js:503:32)
    at tryModuleLoad (module.js:466:12)
    at Function.Module._load (module.js:458:3)
    at Function.Module.runMain (module.js:605:10)
    at startup (bootstrap_node.js:158:16)
    at bootstrap_node.js:575:3
    at <anonymous>
    at checkStack (C:\msys64\home\amwenger\Dev\async-test\index.js:38:5)
    at main (C:\msys64\home\amwenger\Dev\async-test\index.js:16:11)
    at Object.<anonymous> (C:\msys64\home\amwenger\Dev\async-test\index.js:34:1)
    at Module._compile (module.js:569:30)
    at Object.Module._extensions..js (module.js:580:10)
    at Module.load (module.js:503:32)
    at tryModuleLoad (module.js:466:12)
    at Function.Module._load (module.js:458:3)
    at Function.Module.runMain (module.js:605:10)
    at startup (bootstrap_node.js:158:16)
    at bootstrap_node.js:575:3


=================================
 Throwing after await
=================================
Full stack trace:
Error: after timeout
    at cherrypie (C:\msys64\home\amwenger\Dev\async-test\index.js:26:13)
    at <anonymous>
    at <anonymous>
    at checkStack (C:\msys64\home\amwenger\Dev\async-test\index.js:38:5)
    at main (C:\msys64\home\amwenger\Dev\async-test\index.js:30:11)
    at <anonymous>
    at runMicrotasksCallback (internal/process/next_tick.js:86:5)
    at _combinedTickCallback (internal/process/next_tick.js:95:7)
    at process._tickCallback (internal/process/next_tick.js:161:9)
    at Function.Module.runMain (module.js:607:11)
    at startup (bootstrap_node.js:158:16)
    at bootstrap_node.js:575:3


didn't see abacus, bailing

Expected output

In the second trace, something like:

<snip>
Error: after timeout
    at cherrypie (C:\msys64\home\amwenger\Dev\async-test\index.js:26:13)
    at binomial (path:line)
    at abacus (path:line)
<snip>

[AndreasMadsen]

I have no doubt that they all have subtle implementation differences though.

They have subtle differences in the standard too. It is about how many rounds the microtask queue take. Promise.resolve(1).then((val) => Promise.resolve(val)).then(...) results in the same as Promise.resolve(1).then(...) but they behave slightly differently.

The noise bothers me a lot less than missing frames 😃

I know, but that was an issue I understood 😃

[jbunton-atlassian]

Hi there. I think I’ve solved this in #40. I’d love any feedback or testing anybody could give this code 😃

You can try it out by installing it from my repo:

npm install 'git://github.com/jbunton-atlassian/trace#a4e78d89e09ab4830f302bf85a30a528a5746e0b'