Method match_enum

cranelift/reader/src/parser.rs:892–899

Match and consume an enumerated immediate, like one of the condition codes.

(&mut self, err_msg: &str)

    // Match and consume an enumerated immediate, like one of the condition codes.
    fn match_enum<T: FromStr>(&mut self, err_msg: &str) -> ParseResult<T> {
        if let Some(Token::Identifier(text)) = self.token() {
            self.consume();
            text.parse().map_err(|_| self.error(err_msg))
        } else {
            err!(self.loc, err_msg)
        }
    }

    // Match and a consume a possibly empty sequence of memory operation flags.
    fn optional_memflags(&mut self) -> ParseResult<MemFlagsData> {