Function fallback_explicit_named_args

impl/src/fmt.rs:231–253

(input: ParseStream)

}

fn fallback_explicit_named_args(input: ParseStream) -> Result<FmtArguments> {
    let mut args = FmtArguments {
        named: BTreeSet::new(),
        first_unnamed: None,
    };

    while !input.is_empty() {
        if input.peek(Token![,])
            && input.peek2(Ident::peek_any)
            && input.peek3(Token![=])
            && !input.peek3(Token![==])
        {
            input.parse::<Token![,]>()?;
            let ident: IdentUnraw = input.parse()?;
            input.parse::<Token![=]>()?;
            args.named.insert(ident);
        } else {
            input.parse::<TokenTree>()?;
        }
    }

    Ok(args)
}

fn is_syn_full() -> bool {
    // Expr::Block contains syn::Block which contains Vec<syn::Stmt>. In the