mirror of
https://github.com/astral-sh/ruff.git
synced 2025-09-28 04:45:01 +00:00
98ef564170
While looking into potential AST optimizations, I noticed the `AstNode` trait and `AnyNode` type aren't used anywhere in Ruff or Red Knot. It looks like they might be historical artifacts of previous ways of consuming AST nodes? - `AstNode::cast`, `AstNode::cast_ref`, and `AstNode::can_cast` are not used anywhere. - Since `cast_ref` isn't needed anymore, the `Ref` associated type isn't either. This is a pure refactoring, with no intended behavior changes.
76 lines
2.5 KiB
Rust
76 lines
2.5 KiB
Rust
use ruff_formatter::{format_args, write};
|
|
use ruff_python_ast::{Stmt, StmtWhile};
|
|
use ruff_text_size::Ranged;
|
|
|
|
use crate::expression::maybe_parenthesize_expression;
|
|
use crate::expression::parentheses::Parenthesize;
|
|
use crate::prelude::*;
|
|
use crate::statement::clause::{clause_body, clause_header, ClauseHeader, ElseClause};
|
|
use crate::statement::suite::SuiteKind;
|
|
|
|
#[derive(Default)]
|
|
pub struct FormatStmtWhile;
|
|
|
|
impl FormatNodeRule<StmtWhile> for FormatStmtWhile {
|
|
fn fmt_fields(&self, item: &StmtWhile, f: &mut PyFormatter) -> FormatResult<()> {
|
|
let StmtWhile {
|
|
range: _,
|
|
test,
|
|
body,
|
|
orelse,
|
|
} = item;
|
|
|
|
let comments = f.context().comments().clone();
|
|
let dangling_comments = comments.dangling(item);
|
|
|
|
let body_start = body.first().map_or(test.end(), Stmt::start);
|
|
let or_else_comments_start =
|
|
dangling_comments.partition_point(|comment| comment.end() < body_start);
|
|
|
|
let (trailing_condition_comments, or_else_comments) =
|
|
dangling_comments.split_at(or_else_comments_start);
|
|
|
|
write!(
|
|
f,
|
|
[
|
|
clause_header(
|
|
ClauseHeader::While(item),
|
|
trailing_condition_comments,
|
|
&format_args![
|
|
token("while"),
|
|
space(),
|
|
maybe_parenthesize_expression(test, item, Parenthesize::IfBreaks),
|
|
]
|
|
),
|
|
clause_body(
|
|
body,
|
|
SuiteKind::other(orelse.is_empty()),
|
|
trailing_condition_comments
|
|
),
|
|
]
|
|
)?;
|
|
|
|
if !orelse.is_empty() {
|
|
// Split between leading comments before the `else` keyword and end of line comments at the end of
|
|
// the `else:` line.
|
|
let trailing_start =
|
|
or_else_comments.partition_point(|comment| comment.line_position().is_own_line());
|
|
let (leading, trailing) = or_else_comments.split_at(trailing_start);
|
|
|
|
write!(
|
|
f,
|
|
[
|
|
clause_header(
|
|
ClauseHeader::OrElse(ElseClause::While(item)),
|
|
trailing,
|
|
&token("else")
|
|
)
|
|
.with_leading_comments(leading, body.last()),
|
|
clause_body(orelse, SuiteKind::other(true), trailing),
|
|
]
|
|
)?;
|
|
}
|
|
|
|
Ok(())
|
|
}
|
|
}
|