Function rustc_parse::parser::attr_wrapper::make_token_stream

fn make_token_stream(
    tokens: impl Iterator<Item = (Token, Spacing)>, 
    append_unglued_token: Option<TreeAndSpacing>
) -> TokenStream

Converts a flattened iterator of tokens (including open and close delimiter tokens) into a TokenStream, creating a TokenTree::Delimited for each matching pair of open and close delims.