Method parse_user_func_name

cranelift/reader/src/parser.rs:1281–1311

Parse a user-defined function name For example, in a function decl, the parser would be in this state: function ::= "function" * name signature { ... }

(&mut self)

    // function ::= "function" * name signature { ... }
    //
    fn parse_user_func_name(&mut self) -> ParseResult<UserFuncName> {
        match self.token() {
            Some(Token::Name(s)) => {
                self.consume();
                Ok(UserFuncName::testcase(s))
            }
            Some(Token::UserRef(namespace)) => {
                self.consume();
                match self.token() {
                    Some(Token::Colon) => {
                        self.consume();
                        match self.token() {
                            Some(Token::Integer(index_str)) => {
                                self.consume();
                                let index: u32 =
                                    u32::from_str_radix(index_str, 10).map_err(|_| {
                                        self.error("the integer given overflows the u32 type")
                                    })?;
                                Ok(UserFuncName::user(namespace, index))
                            }
                            _ => err!(self.loc, "expected integer"),
                        }
                    }
                    _ => {
                        err!(self.loc, "expected user function name in the form uX:Y")
                    }
                }
            }
            _ => err!(self.loc, "expected external name"),
        }
    }

    // Parse an external name.
    //