Double slash comment `//` will be wrongly removed in the trailing position of the object attribute

[Azurewarth0920]

🔎 Search Terms

• comment removal
• removeComments

🕗 Version & Regression Information

• This is the behavior in every version I tried.

⏯ Playground Link

https://www.typescriptlang.org/play?ts=5.2.2#code/KYDwDg9gTgLgBAYwgOwM7wGYQnAvHAbwCg5S4sIAuOAcgpoBo4B6ZuGACwEtVEIBbfsGTwA7lwA2EuACNgcKMH4QAbsAAmAOhJkZAQyjUa+qDRZtOPPoOFjJ0uXADWwMDCYyArmI4BPbQC+QA

💻 Code

export const foo = {
    foo: 'foo', // this comment will be removed, however this should be kept
    bar: 'bar' // this comment will be kept, works well
}

🙁 Actual behavior

export const foo = {
    foo: 'foo',
    bar: 'bar' // this comment will be kept, works well
}

🙂 Expected behavior

export const foo = {
    foo: 'foo', // this comment will be removed, however this should be kept
    bar: 'bar' // this comment will be kept, works well
}

Additional information about the issue

No response

[fatcerberus]

Based on your repro, I assume you meant "...will be wrongly removed in non-trailing positions"

[RyanCavanaugh]

This looks fixable in principle, but FYI 100% comment preservation is not a goal of TS's emitter and you should try not to put yourself in a position where you need all comments in arbitrary positions to be maintained.