cardano_serialization_lib/serialization/certificates/
stake_delegation.rs

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use crate::serialization::map_names::CertificateIndexNames;
use crate::serialization::utils::{
    check_len, deserialize_and_check_index, serialize_and_check_index,
};
use crate::*;
use num_traits::ToPrimitive;

impl cbor_event::se::Serialize for StakeDelegation {
    fn serialize<'se, W: Write>(
        &self,
        serializer: &'se mut Serializer<W>,
    ) -> cbor_event::Result<&'se mut Serializer<W>> {
        serializer.write_array(cbor_event::Len::Len(3))?;
        self.serialize_as_embedded_group(serializer)
    }
}

impl SerializeEmbeddedGroup for StakeDelegation {
    fn serialize_as_embedded_group<'se, W: Write>(
        &self,
        serializer: &'se mut Serializer<W>,
    ) -> cbor_event::Result<&'se mut Serializer<W>> {
        let proposal_index = CertificateIndexNames::StakeDelegation.to_u64();
        serialize_and_check_index(serializer, proposal_index, "StakeDelegation")?;

        self.stake_credential.serialize(serializer)?;
        self.pool_keyhash.serialize(serializer)?;
        Ok(serializer)
    }
}

impl_deserialize_for_wrapped_tuple!(StakeDelegation);

impl DeserializeEmbeddedGroup for StakeDelegation {
    fn deserialize_as_embedded_group<R: BufRead + Seek>(
        raw: &mut Deserializer<R>,
        len: cbor_event::Len,
    ) -> Result<Self, DeserializeError> {
        check_len(len, 3, "(cert_index, stake_credential, pool_keyhash)")?;
        let cert_index = CertificateIndexNames::StakeDelegation.to_u64();
        deserialize_and_check_index(raw, cert_index, "cert_index")?;

        let stake_credential =
            (|| -> Result<_, DeserializeError> { Ok(Credential::deserialize(raw)?) })()
                .map_err(|e| e.annotate("stake_credential"))?;
        let pool_keyhash =
            (|| -> Result<_, DeserializeError> { Ok(Ed25519KeyHash::deserialize(raw)?) })()
                .map_err(|e| e.annotate("pool_keyhash"))?;
        Ok(StakeDelegation {
            stake_credential,
            pool_keyhash,
        })
    }
}