Syntax error on octal escape in tagged template string

[kieran-osgood]

What version of Bun is running?

1.0.15+b3bdf22eb

What platform is your computer?

Darwin 23.1.0 arm64 arm

What steps can reproduce the bug?

     // index.cjs / index.js
     const assert = require("assert")
     assert.equal(String.raw`/\1`.length, 3);

Then run it with bun index.cjs

What is the expected behavior?

Syntax is valid

➜ node index.cjs

What do you see instead?

➜ bun index.cjs
5 | assert.equal(String.raw`/\1`.length, 3);
                           ^
error: Syntax Error!!

Additional information

No response

[paperclover]

when it is not a template, it seems this is meant to be an error

obviously when it is a template, this is allowed, but it seems the parser is not aware of this.

cc @dylan-conway

[paperclover]

reduced reproduction, run bun build demo.ts

a`\1`

[alexop1000]

Bump, causes issues in NextJS when importing a client-rendered component from a server-rendered one.

[TechnologicNick]

Also fails on invalid \u0000 with less than 4 hexadecimals and \x00 with less than 2 hexadecimals.

[devunt]

This issue blocks usage of shiki in bun.

[Jarred-Sumner]

Fixed by @pfgithub in Bun v1.1.35