Function parse_as_imm32

cranelift/reader/src/parser.rs:3571–3573

(text: &str)

    #[test]
    fn i32_as_hex() {
        fn parse_as_imm32(text: &str) -> ParseResult<i32> {
            Parser::new(text).match_imm32("unable to parse i32")
        }

        assert_eq!(parse_as_imm32("0x80000000").unwrap(), -2147483648);
        assert_eq!(parse_as_imm32("0xffffffff").unwrap(), -1);