Unnamed repository; edit this file 'description' to name the repository.
Use itertools
| -rw-r--r-- | crates/hir_expand/src/builtin_macro.rs | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/crates/hir_expand/src/builtin_macro.rs b/crates/hir_expand/src/builtin_macro.rs index eeee66cbd9..e148118348 100644 --- a/crates/hir_expand/src/builtin_macro.rs +++ b/crates/hir_expand/src/builtin_macro.rs @@ -184,15 +184,16 @@ fn assert_expand( let args = parse_exprs_with_sep(tt, ','); let expanded = match &*args { [cond, panic_args @ ..] => { - let cond = cond.clone(); - let panic_args = panic_args.iter().cloned().intersperse(tt::Subtree { + let comma = tt::Subtree { delimiter: None, token_trees: vec![tt::TokenTree::Leaf(tt::Leaf::Punct(tt::Punct { char: ',', spacing: tt::Spacing::Alone, id: tt::TokenId::unspecified(), }))], - }); + }; + let cond = cond.clone(); + let panic_args = itertools::Itertools::intersperse(panic_args.iter().cloned(), comma); quote! {{ if !#cond { #krate::panic!(##panic_args); |