bjoernager/rust
bjoernager/rust
1
Fork 0
Code Activity

Recover unclosed char literal being parsed as lifetime

Browse source
This commit is contained in:
Michael Goulet 2022-09-01 18:48:09 +00:00
parent cde693cf96
commit 0270b50eb0
11 changed files with 209 additions and 23 deletions
Download patch file Download diff file Expand all files Collapse all files

9
compiler/rustc_parse/src/lexer/mod.rs
View file

@ -3,7 +3,9 @@ use rustc_ast::ast::{self, AttrStyle};
use rustc_ast::token::{self, CommentKind, Delimiter, Token, TokenKind};
use rustc_ast::tokenstream::TokenStream;
use rustc_ast::util::unicode::contains_text_flow_control_chars;
use rustc_errors::{error_code, Applicability, DiagnosticBuilder, ErrorGuaranteed, PResult};
use rustc_errors::{
error_code, Applicability, DiagnosticBuilder, ErrorGuaranteed, PResult, StashKey,
};
use rustc_lexer::unescape::{self, Mode};
use rustc_lexer::Cursor;
use rustc_lexer::{Base, DocStyle, RawStrError};
@ -203,7 +205,10 @@ impl<'a> StringReader<'a> {
// this is necessary.
let lifetime_name = self.str_from(start);
if starts_with_number {
self.err_span_(start, self.pos, "lifetimes cannot start with a number");
let span = self.mk_sp(start, self.pos);
let mut diag = self.sess.struct_err("lifetimes cannot start with a number");
diag.set_span(span);
diag.stash(span, StashKey::LifetimeIsChar);
}
let ident = Symbol::intern(lifetime_name);
token::Lifetime(ident)