Allow line break before import attributes `with` keyword

[fisker]

🔎 Search Terms

"import attributes" "line break" "parse"

🕗 Version & Regression Information

• This changed between versions ______ and _______
• This changed in commit or PR _______
• This is the behavior in every version I tried, and I reviewed the FAQ for entries about _________
• I was unable to test this on prior versions because _______

⏯ Playground Link

https://www.typescriptlang.org/play/?#code/JYWwDg9gTgLgBAQwLACgCQAzKERwEQYQR6poDuwMAFnAN4wCeYApgFz4BWAzhAHZ4BfIA

💻 Code

import a
	from "foo"
	with {type: "json"}

I believe this is allowed by the spec.

🙁 Actual behavior

TypeScript fails to parse.

🙂 Expected behavior

No error.

Additional information about the issue

I'm from the Prettier team, we are trying to improve the format of import declarations with multiple attributes.
I was thinking that we can break long declarations before the from or with keyword. (Not decided yet)

But since it can't be parsed, so we don't have this option at all.

Ref

[MartinJohns]

I believe this is allowed by the spec.

Is it? I couldn't find any definite information. I would assume ASI kicks in because the with keyword is considered a with-statement on the next line, but couldn't find a confirmation for this either.

[fisker]

I'm not familiar with any parser. But according to this comment posted by Babel maintainer, assert keyword used have this limitation, but with is not.

I would assume ASI kicks in because the with keyword is considered a with-statement

Module can't have with-statement, since it's strict mode.

[RyanCavanaugh]

Confirmed this is parsed as a single construct in node