A bit of background: I would like to avoid using stdweb, because it seems to be unmaintained. use web_sys::{File as WebFile}; // What I get pub fn process_emails(file: WebFile, json_file_path: &str, json_headers_file_path: &str) { // … } // What I would like to work with let file = File::open(mbox_file_path).expect(“Failed to open mbox file”); I would […]