1709800 - Scripts with private fields can't be pretty printed

Status: RESOLVED DUPLICATE of bug 1710417

(DevTools :: Console, defect, P1)

Description

[Nicolas Chevobbe [:nchevobbe]]

Steps to reproduce

1. Navigate to https://firefox-devtools-private-fields.glitch.me/
2. Open the debugger
3. Open the script.js file
4. Click on the Pretty print source button at the bottom

Expected results

The file gets pretty printed in a new editor tab

Actual results

A new editor tab is opened which contains the following text:

Error loading this URI: Unexpected character '#' (4:9)

---

The error seems to originate from the acorn library: https://searchfox.org/mozilla-central/source/devtools/shared/acorn/acorn.js#2785

Comment 1

[Nicolas Chevobbe [:nchevobbe]]

The issue is in acorn, but not in the vendored in version, rather in pretty-fast.
pretty-fast will be updated and a new version will be published to npm (see https://github.com/mozilla/pretty-fast/pull/47)

Comment 2

[Nicolas Chevobbe [:nchevobbe]]

pretty printing file with private fields was fixed in Bug 1710417