INNER CODE UNIT · Rust

respan

rusqlite/rusqlite · rusqlite-macros/src/lib.rs:91

fn respan(ts: TokenStream, span: Span) -> TokenStream {
    let mut res = TokenStream::new();
    for tt in ts {
        let tt = match tt {
            TokenTree::Ident(mut ident) => {
                ident.set_span(ident.span().resolved_at(span).located_at(span));
                TokenTree::Ident(ident)
            }
            TokenTree::Group(group) => {
                TokenTree::Group(Group::new(group.delimiter(), respan(group.stream(), span)))
            }
            _ => tt,
        };
        res.extend(Some(tt));
    }
    res
}

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