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Diffstat (limited to 'crates/mbe/src/expander/transcriber.rs')
| -rw-r--r-- | crates/mbe/src/expander/transcriber.rs | 14 |
1 files changed, 7 insertions, 7 deletions
diff --git a/crates/mbe/src/expander/transcriber.rs b/crates/mbe/src/expander/transcriber.rs index 800bc994ad..9291f799cc 100644 --- a/crates/mbe/src/expander/transcriber.rs +++ b/crates/mbe/src/expander/transcriber.rs @@ -83,7 +83,7 @@ impl<S: Span> Bindings<S> { close: span, kind: tt::DelimiterKind::Brace, }, - token_trees: vec![], + token_trees: Box::new([]), })), // FIXME: Meta and Item should get proper defaults MetaVarKind::Meta | MetaVarKind::Item | MetaVarKind::Tt | MetaVarKind::Vis => { @@ -349,11 +349,11 @@ fn expand_var<S: Span>( // We just treat it a normal tokens let tt = tt::Subtree { delimiter: tt::Delimiter::invisible_spanned(id), - token_trees: vec![ + token_trees: Box::new([ tt::Leaf::from(tt::Punct { char: '$', spacing: tt::Spacing::Alone, span: id }) .into(), tt::Leaf::from(tt::Ident { text: v.clone(), span: id }).into(), - ], + ]), } .into(); ExpandResult::ok(Fragment::Tokens(tt)) @@ -406,7 +406,7 @@ fn expand_repeat<S: Span>( value: Fragment::Tokens( tt::Subtree { delimiter: tt::Delimiter::invisible_spanned(ctx.call_site), - token_trees: vec![], + token_trees: Box::new([]), } .into(), ), @@ -455,7 +455,7 @@ fn expand_repeat<S: Span>( // e.g {Delimiter:None> ['>'] /Delimiter:None>} let tt = tt::Subtree { delimiter: tt::Delimiter::invisible_spanned(ctx.call_site), - token_trees: buf, + token_trees: buf.into_boxed_slice(), } .into(); @@ -486,7 +486,7 @@ fn push_fragment<S: Span>( fn push_subtree<S>(buf: &mut Vec<tt::TokenTree<S>>, tt: tt::Subtree<S>) { match tt.delimiter.kind { - tt::DelimiterKind::Invisible => buf.extend(tt.token_trees), + tt::DelimiterKind::Invisible => buf.extend(Vec::from(tt.token_trees)), _ => buf.push(tt.into()), } } @@ -504,7 +504,7 @@ fn fix_up_and_push_path_tt<S: Span>( // Note that we only need to fix up the top-level `TokenTree`s because the // context of the paths in the descendant `Subtree`s won't be changed by the // mbe transcription. - for tt in subtree.token_trees { + for tt in Vec::from(subtree.token_trees) { if prev_was_ident { // Pedantically, `(T) -> U` in `FnOnce(T) -> U` is treated as a generic // argument list and thus needs `::` between it and `FnOnce`. However in |