fn verify_singles(inputs: HashMap<&str, (TokenType, &str)>) {
        for (input, er) in inputs.iter() {
            let rx = lex("verify_singles", input);
            if let Ok(token) = rx.recv() {
                if token.typ == TokenType::Error {
                    panic!("lex failed for {} with {}", input, token.val);
                }
                assert_eq!(token.typ, er.0);
                assert_eq!(&token.val[..], er.1);
            } else {
                assert!(false, "ran out of tokens");
            }
        }
    }
/// `verify_singles` verifies individual expressions to check for
/// special cases in the lexer.
`verify_singles` verifies individual expressions to check for
special cases in the lexer.
` verify_singles ` verifies individual expressions to check for special cases in the lexer .
fn verify_singles(inputs: HashMap<&str, (TokenType, &str)>) {
        for (input, er) in inputs.iter() {
            let rx = lex("verify_singles", input);
            if let Ok(token) = rx.recv() {
                if token.typ == TokenType::Error {
                    panic!("lex failed for {} with {}", input, token.val);
                }
                assert_eq!(token.typ, er.0);
                assert_eq!(&token.val[..], er.1);
            } else {
                assert!(false, "ran out of tokens");
            }
        }
    }
fn verify_singles ( inputs : HashMap < & str , ( TokenType , & str ) > ) { for ( input , er ) in inputs . iter ( ) { let rx = lex ( " " , input ) ; if let Ok ( token ) = rx . recv ( ) { if token . typ == TokenType :: Error { panic ! ( " " input token val ) ; } assert_eq ! ( token typ er 0 ) ; assert_eq ! ( token val [ ] er 1 ) ; } else { assert ! ( false " " ) ; } } }
`verify_singles` verifies individual expressions to check for
special cases in the lexer.
` verify_singles ` verifies individual expressions to check for special cases in the lexer .
inputs
HashMap<&str, (TokenType, &str)>