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Avoid searching for bracketed comments in unparenthesized generators (#7627)

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Similar to tuples, a generator _can_ be parenthesized or
unparenthesized. Only search for bracketed comments if it contains its
own parentheses.

Closes https://github.com/astral-sh/ruff/issues/7623.
This commit is contained in:
Charlie Marsh 2023-09-23 22:08:44 -04:00 • committed by GitHub
parent 1a22eae98c
commit 865c89800e
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5 changed files with 66 additions and 7 deletions
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11
crates/ruff_python_formatter/src/expression/expr_generator_exp.rs
View file

@ -102,8 +102,9 @@ impl NeedsParentheses for ExprGeneratorExp {
}
}
fn is_generator_parenthesized(generator: &ExprGeneratorExp, source: &str) -> bool {
// / Count the number of open parentheses between the start of the tuple and the first element.
/// Return `true` if a generator is parenthesized in the source code.
pub(crate) fn is_generator_parenthesized(generator: &ExprGeneratorExp, source: &str) -> bool {
// Count the number of open parentheses between the start of the generator and the first element.
let open_parentheses_count = SimpleTokenizer::new(
source,
TextRange::new(generator.start(), generator.elt.start()),
@ -115,7 +116,7 @@ fn is_generator_parenthesized(generator: &ExprGeneratorExp, source: &str) -> boo
return false;
}
// Count the number of parentheses between the end of the first element and its trailing comma.
// Count the number of parentheses between the end of the generator and its trailing comma.
let close_parentheses_count = SimpleTokenizer::new(
source,
TextRange::new(
@ -130,7 +131,7 @@ fn is_generator_parenthesized(generator: &ExprGeneratorExp, source: &str) -> boo
.filter(|token| token.kind() == SimpleTokenKind::RParen)
.count();
// If the number of open parentheses is greater than the number of close parentheses, the generator
// is parenthesized.
// If the number of open parentheses is greater than the number of close parentheses, the
// generator is parenthesized.
open_parentheses_count > close_parentheses_count
}

2
crates/ruff_python_formatter/src/expression/expr_tuple.rs
View file

@ -221,7 +221,7 @@ impl NeedsParentheses for ExprTuple {
}
}
/// Check if a tuple has already had parentheses in the input
/// Return `true` if a tuple is parenthesized in the source code.
pub(crate) fn is_tuple_parenthesized(tuple: &ExprTuple, source: &str) -> bool {
let Some(elt) = tuple.elts.first() else {
return false;