Function resolve_digestmod

crates/stdlib/src/hashlib.rs:218–235

(digestmod: &PyObjectRef, vm: &VirtualMachine)

    }

    fn resolve_digestmod(digestmod: &PyObjectRef, vm: &VirtualMachine) -> PyResult<String> {
        if let Some(name) = digestmod.downcast_ref::<PyStr>()
            && let Some(name_str) = name.to_str()
        {
            return Ok(name_str.to_lowercase());
        }
        if let Ok(name_obj) = digestmod.get_attr("__name__", vm)
            && let Some(name) = name_obj.downcast_ref::<PyStr>()
            && let Some(name_str) = name.to_str()
            && let Some(algo) = name_str.strip_prefix("openssl_")
        {
            return Ok(algo.to_owned());
        }
        Err(vm.new_exception_msg(
            UnsupportedDigestmodError::static_type().to_owned(),
            "unsupported digestmod".into(),
        ))
    }

    fn hash_digest_size(name: &str) -> Option<usize> {
        match name {