bjoernager/rust
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Auto merge of #99918 - WaffleLapkin:fnFnfun, r=estebank

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Recover wrong-cased keywords that start items

(_this pr was inspired by [this tweet](https://twitter.com/Azumanga/status/1552982326409367561)_)

r? `@estebank`

We've talked a bit about this recovery, but I just wanted to make sure that this is the right approach :)

For now I've only added the case insensitive recovery to `use`s, since most other items like `impl` blocks, modules, functions can start with multiple keywords which complicates the matter.
This commit is contained in:
bors 2022-11-11 02:07:52 +00:00
commit 5b82ea74b7
10 changed files with 286 additions and 42 deletions
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3
compiler/rustc_parse/src/parser/expr.rs
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@ -33,6 +33,7 @@ use core::mem;
use rustc_ast::ptr::P;
use rustc_ast::token::{self, Delimiter, Token, TokenKind};
use rustc_ast::tokenstream::Spacing;
use rustc_ast::util::case::Case;
use rustc_ast::util::classify;
use rustc_ast::util::literal::LitError;
use rustc_ast::util::parser::{prec_let_scrutinee_needs_par, AssocOp, Fixity};
@ -2090,7 +2091,7 @@ impl<'a> Parser<'a> {
if self.eat_keyword(kw::Static) { Movability::Static } else { Movability::Movable };
let asyncness = if self.token.uninterpolated_span().rust_2018() {
self.parse_asyncness()
self.parse_asyncness(Case::Sensitive)
} else {
Async::No
};