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Diffstat (limited to 'crates/mbe/src/expander.rs')
| -rw-r--r-- | crates/mbe/src/expander.rs | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/crates/mbe/src/expander.rs b/crates/mbe/src/expander.rs index 52c1ec43c4..60483809dc 100644 --- a/crates/mbe/src/expander.rs +++ b/crates/mbe/src/expander.rs @@ -56,7 +56,10 @@ pub(crate) fn expand_rules<S: Span>( ExpandResult { value, err: match_.err.or(transcribe_err) } } else { ExpandResult::new( - tt::Subtree { delimiter: tt::Delimiter::DUMMY_INVISIBLE, token_trees: vec![] }, + tt::Subtree { + delimiter: tt::Delimiter::invisible_spanned(call_site), + token_trees: vec![], + }, ExpandError::NoMatchingRule, ) } @@ -128,6 +131,7 @@ enum Binding<S> { #[derive(Debug, Clone, PartialEq, Eq)] enum Fragment<S> { + Empty, /// token fragments are just copy-pasted into the output Tokens(tt::TokenTree<S>), /// Expr ast fragments are surrounded with `()` on insertion to preserve |