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Fix brace problem in panic message in rustc_expand.

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This commit is contained in:
Mara Bos 2020-10-19 00:05:45 +02:00
parent 9615d27ab7
commit 9a840a30d6
1 changed files with 2 additions and 1 deletions
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3
compiler/rustc_expand/src/mbe/macro_rules.rs
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@ -1173,7 +1173,8 @@ fn quoted_tt_to_string(tt: &mbe::TokenTree) -> String {
mbe::TokenTree::MetaVar(_, name) => format!("${}", name), mbe::TokenTree::MetaVar(_, name) => format!("${}", name),
mbe::TokenTree::MetaVarDecl(_, name, kind) => format!("${}:{}", name, kind), mbe::TokenTree::MetaVarDecl(_, name, kind) => format!("${}:{}", name, kind),
_ => panic!( _ => panic!(
"unexpected mbe::TokenTree::{{Sequence or Delimited}} \ "{}",
"unexpected mbe::TokenTree::{Sequence or Delimited} \
in follow set checker" in follow set checker"
), ),
} }