INNER CODE UNIT · Rust

find_name

bheisler/criterion.rs · macro/src/lib.rs:40

fn find_name(stream: proc_macro2::TokenStream) -> Ident {
    let mut iter = stream.into_iter();
    while let Some(tok) = iter.next() {
        if let TokenTree::Ident(ident) = tok {
            if ident == "fn" {
                break;
            }
        }
    }
    
    if let Some(TokenTree::Ident(name)) = iter.next() {
        name
    }
    else {
        panic!("Unable to find function name")
    }
}

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