diff options
| -rw-r--r-- | compiler/rustc_expand/src/mbe/macro_rules.rs | 5 |
1 files changed, 2 insertions, 3 deletions
diff --git a/compiler/rustc_expand/src/mbe/macro_rules.rs b/compiler/rustc_expand/src/mbe/macro_rules.rs index 26b37caac48..89547088f50 100644 --- a/compiler/rustc_expand/src/mbe/macro_rules.rs +++ b/compiler/rustc_expand/src/mbe/macro_rules.rs @@ -386,7 +386,8 @@ pub fn compile_declarative_macro( let body = macro_def.body.tokens.clone(); let mut p = Parser::new(&sess.psess, body, rustc_parse::MACRO_ARGUMENTS); - // Don't abort iteration early, so that multiple errors can be reported. + // Don't abort iteration early, so that multiple errors can be reported. We only abort early on + // parse failures we can't recover from. let mut guar = None; let mut check_emission = |ret: Result<(), ErrorGuaranteed>| guar = guar.or(ret.err()); @@ -395,8 +396,6 @@ pub fn compile_declarative_macro( while p.token != token::Eof { let lhs_tt = p.parse_token_tree(); let lhs_tt = parse_one_tt(lhs_tt, RulePart::Pattern, sess, node_id, features, edition); - // We don't handle errors here, the driver will abort after parsing/expansion. We can - // report every error in every macro this way. check_emission(check_lhs(sess, node_id, &lhs_tt)); if let Err(e) = p.expect(exp!(FatArrow)) { return dummy_syn_ext(e.emit()); |