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Use CommentRanges in backwards lexing (#7360)

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## Summary

The tokenizer was split into a forward and a backwards tokenizer. The
backwards tokenizer uses the same names as the forwards ones (e.g.
`next_token`). The backwards tokenizer gets the comment ranges that we
already built to skip comments.

---------

Co-authored-by: Micha Reiser <micha@reiser.io>
This commit is contained in:
konsti 2023-09-16 05:21:45 +02:00 • committed by GitHub
parent 1f6e1485f9
commit 2cbe1733c8
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41 changed files with 744 additions and 628 deletions
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13
crates/ruff_python_formatter/src/expression/expr_subscript.rs
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@ -89,11 +89,18 @@ impl NeedsParentheses for ExprSubscript {
context: &PyFormatContext,
) -> OptionalParentheses {
{
if CallChainLayout::from_expression(self.into(), context.source())
== CallChainLayout::Fluent
if CallChainLayout::from_expression(
self.into(),
context.comments().ranges(),
context.source(),
) == CallChainLayout::Fluent
{
OptionalParentheses::Multiline
} else if is_expression_parenthesized(self.value.as_ref().into(), context.source()) {
} else if is_expression_parenthesized(
self.value.as_ref().into(),
context.comments().ranges(),
context.source(),
) {
OptionalParentheses::Never
} else {
match self.value.needs_parentheses(self.into(), context) {