v4.0.2 gives build error `Unexpected token: punc (:)`

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Assessment

Difficulty
4/5
Estimated time
3-5 days
Newbie friendliness
35/100
Issue type
Bug
Clarity
Needs clarification
Activity status
Stale
Tech stack
javascript
Domain
build-system

Research direction

Start by reproducing the build with ember-cli-terser v4.0.2 and compare its dependency tree with v4.0.1, focusing on the TerserWriter stack and node_modules/broccoli-terser-sourcemap/node_modules/broccoli-plugin/dist/index.js. Done means identifying whether the release introduced the parsing failure and documenting or fixing a reproducible regression.

Written by the indexing model from the issue text.

Description

bug

Updating to v4.0.2 gives us the following in our build logs:

error	08-Jul-2021 12:04:17	Error: Unexpected token: punc (:)
error	08-Jul-2021 12:04:17	        at TerserWriter
error	08-Jul-2021 12:04:17	-~- created here: -~-
error	08-Jul-2021 12:04:17	    at new Plugin (/node_modules/broccoli-terser-sourcemap/node_modules/broccoli-plugin/dist/index.js:47:36)

v4.0.1 is working. Are we missing a transitive dependency update? Or is there an issue with v4.0.2?

Dominant language
JavaScript
Stars
23
Forks
24
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