SyntaxError: Invalid regular expression: unmatched parentheses

[vxna]

What version of Bun is running?

0.6.0

What platform is your computer?

Darwin 22.4.0 arm64 arm

What steps can reproduce the bug?

$ bun install hex-rgb

import hexRgb from 'hex-rgb'
console.log(hexRgb('4183c4'))

$ bun run index.mjs

What is the expected behavior?

$ node -v
v16.20.0

$ node index.mjs
{ red: 65, green: 131, blue: 196, alpha: 1 }

What do you see instead?

$ bun index.mjs
1 | const hexCharacters = 'a-f\\d';
2 | const match3or4Hex = `#?[${hexCharacters}]{3}[${hexCharacters}]?`;
3 | const match6or8Hex = `#?[${hexCharacters}]{6}([${hexCharacters}]{2})?`;
4 | const nonHexChars = new RegExp(`[^#${hexCharacters}]`, 'gi');
5 | const validHexSize = new RegExp(`^${match3or4Hex}$|^${match6or8Hex}$`, 'i');
                         ^
SyntaxError: Invalid regular expression: unmatched parentheses
      at /Users/vxna/dev/public/bun-repro/node_modules/hex-rgb/index.js:5:21

Additional information

No response

[Jarred-Sumner]

this reads like an inlining bug in the transpiler