Correctly handle while-let-chains

2023-11-10 12:13:53 -08:00 · 2023-11-10 12:13:53 -08:00 · a49368f00b
commit a49368f00b
parent 9455259450
4 changed files with 51 additions and 4 deletions
--- a/compiler/rustc_parse/src/lexer/tokentrees.rs
+++ b/compiler/rustc_parse/src/lexer/tokentrees.rs
@ -129,7 +129,7 @@ impl<'a> TokenTreesReader<'a> {
            while parser.token != token::Eof {
                if let Err(diff_err) = parser.err_diff_marker() {
                    diff_errs.push(diff_err);
-                } else if parser.token.is_keyword(kw::If) {
+                } else if parser.is_keyword_ahead(0, &[kw::If, kw::While]) {
                    in_cond = true;
                } else if matches!(
                    parser.token.kind,