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Keep comment after destructuring pattern out of the pattern - #19905
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Prettier PR #19905 --parser typescriptInput: const {foo}
// bar
: Foo = expr;Output: const {
foo,
// bar
}: Foo = expr; |
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Good catch, fixed in c484fb0. The check now runs before the preceding-node branch, so a comment after the closing bracket stays out of a non-empty pattern too. I also added the handler to the end-of-line list, otherwise the next format pass pulled the comment back in. |
| // const {foo} | ||
| // // bar | ||
| // : Foo = expr; | ||
| addLeadingComment(followingNode, comment); |
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What if we remove addLeadingComment here?
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Works, thanks. I dropped the addLeadingComment and return false there instead, so the handler is a single condition now. Output is the same and tests/format stays at baseline. Commit 89e9bc6.
One note: the handleEndOfLineComment registration is still needed, for const { // bar followed by }: Foo = expr;. Without it that dangling comment moves outside the braces. I added the case to the fixture.
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Looks like we can't remove it, otherwise
Input:
const {
foo2,
} // bar
: Foo = expr;Output:
const {
foo2, // bar
}: Foo = expr;
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Fix formatting of TypeScript destructuring assignment.
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Description
Fixes #19903.
A pattern with a type annotation ends after the annotation, so a comment between the closing bracket and the
:still has the pattern as its enclosing node and was printed inside the brackets. It now stays outside unless it really is before the closing bracket.Checklist
docs/directory).changelog_unreleased/*/XXXX.mdfile followingchangelog_unreleased/TEMPLATE.md.