make it semantic error

2023-03-10 14:18:58 +00:00
parent bf3ca5979e
commit abb181dfd9
7 changed files with 22 additions and 1 deletions
--- a/compiler/rustc_parse/src/lexer/mod.rs
+++ b/compiler/rustc_parse/src/lexer/mod.rs
@@ -204,6 +204,9 @@ impl<'a> StringReader<'a> {
                rustc_lexer::TokenKind::Literal { kind, suffix_start } => {
                    let suffix_start = start + BytePos(suffix_start);
                    let (kind, symbol) = self.cook_lexer_literal(start, suffix_start, kind);
+                    if let token::LitKind::CStr | token::LitKind::CStrRaw(_) = kind {
+                        self.sess.gated_spans.gate(sym::c_str_literals, self.mk_sp(start, self.pos));
+                    }
                    let suffix = if suffix_start < self.pos {
                        let string = self.str_from(suffix_start);
                        if string == "_" {