mirror of https://github.com/astral-sh/ruff
53 lines
1.4 KiB
Rust
53 lines
1.4 KiB
Rust
use ruff_formatter::write;
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use ruff_python_ast::AnyNodeRef;
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use ruff_python_ast::ExprAwait;
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use crate::expression::maybe_parenthesize_expression;
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use crate::expression::parentheses::{
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NeedsParentheses, OptionalParentheses, Parenthesize, is_expression_parenthesized,
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};
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use crate::prelude::*;
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#[derive(Default)]
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pub struct FormatExprAwait;
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impl FormatNodeRule<ExprAwait> for FormatExprAwait {
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fn fmt_fields(&self, item: &ExprAwait, f: &mut PyFormatter) -> FormatResult<()> {
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let ExprAwait {
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range: _,
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node_index: _,
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value,
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} = item;
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write!(
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f,
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[
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token("await"),
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space(),
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maybe_parenthesize_expression(value, item, Parenthesize::IfBreaks)
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]
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)
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}
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}
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impl NeedsParentheses for ExprAwait {
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fn needs_parentheses(
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&self,
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parent: AnyNodeRef,
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context: &PyFormatContext,
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) -> OptionalParentheses {
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if parent.is_expr_await() {
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OptionalParentheses::Always
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} else if is_expression_parenthesized(
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self.value.as_ref().into(),
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context.comments().ranges(),
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context.source(),
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) {
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// Prefer splitting the value if it is parenthesized.
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OptionalParentheses::Never
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} else {
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self.value.needs_parentheses(self.into(), context)
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}
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}
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}
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