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Disallow newlines in format specifiers of single quoted f- or t-strings (#18708)

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Micha Reiser 2025-06-18 14:56:15 +02:00 • committed by GitHub
parent 23261a38a0
commit 1188ffccc4
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17 changed files with 521 additions and 513 deletions
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33
crates/ruff_python_formatter/src/comments/placement.rs
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@ -323,27 +323,18 @@ fn handle_enclosed_comment<'a>(
AnyNodeRef::TString(tstring) => CommentPlacement::dangling(tstring, comment),
AnyNodeRef::InterpolatedElement(element) => {
if let Some(preceding) = comment.preceding_node() {
if comment.line_position().is_own_line() && element.format_spec.is_some() {
return if comment.following_node().is_some() {
// Own line comment before format specifier
// ```py
// aaaaaaaaaaa = f"""asaaaaaaaaaaaaaaaa {
// aaaaaaaaaaaa + bbbbbbbbbbbb + ccccccccccccccc + dddddddd
// # comment
// :.3f} cccccccccc"""
// ```
CommentPlacement::trailing(preceding, comment)
} else {
// TODO: This can be removed once format specifiers with a newline are a syntax error.
// This is to handle cases like:
// ```py
// x = f"{x !s
// :>0
// # comment 21
// }"
// ```
CommentPlacement::trailing(element, comment)
};
// Own line comment before format specifier
// ```py
// aaaaaaaaaaa = f"""asaaaaaaaaaaaaaaaa {
// aaaaaaaaaaaa + bbbbbbbbbbbb + ccccccccccccccc + dddddddd
// # comment
// :.3f} cccccccccc"""
// ```
if comment.line_position().is_own_line()
&& element.format_spec.is_some()
&& comment.following_node().is_some()
{
return CommentPlacement::trailing(preceding, comment);
}
}