cardano_serialization_lib/serialization/governance/proposals/
parameter_change_action.rs

1use crate::serialization::utils::serialize_and_check_index;
2use crate::serialization::{check_len, deserialize_and_check_index};
3use crate::*;
4use map_names::VotingProposalIndexNames;
5use num_traits::ToPrimitive;
6
7impl cbor_event::se::Serialize for ParameterChangeAction {
8    fn serialize<'se, W: Write>(
9        &self,
10        serializer: &'se mut Serializer<W>,
11    ) -> cbor_event::Result<&'se mut Serializer<W>> {
12        serializer.write_array(cbor_event::Len::Len(4))?;
13
14        let proposal_index = VotingProposalIndexNames::ParameterChangeAction.to_u64();
15        serialize_and_check_index(serializer, proposal_index, "ParameterChangeAction")?;
16
17        self.gov_action_id.serialize_nullable(serializer)?;
18        self.protocol_param_updates.serialize(serializer)?;
19        self.policy_hash.serialize_nullable(serializer)?;
20
21        Ok(serializer)
22    }
23}
24
25impl_deserialize_for_wrapped_tuple!(ParameterChangeAction);
26
27impl DeserializeEmbeddedGroup for ParameterChangeAction {
28    fn deserialize_as_embedded_group<R: BufRead + Seek>(
29        raw: &mut Deserializer<R>,
30        len: cbor_event::Len,
31    ) -> Result<Self, DeserializeError> {
32        let has_policy_hash = len == cbor_event::Len::Len(4) || len == cbor_event::Len::Indefinite;
33
34        //for sancho backwards compatibility
35        if !has_policy_hash {
36            check_len(
37                len,
38                3,
39                "(proposal_index, gov_action_id // null, protocol_param_updates)",
40            )?;
41        } else {
42            check_len(
43                len,
44                4,
45                "(proposal_index, gov_action_id // null, protocol_param_updates, policy_hash // null)",
46            )?;
47        }
48
49        let desired_index = VotingProposalIndexNames::ParameterChangeAction.to_u64();
50        deserialize_and_check_index(raw, desired_index, "proposal_index")?;
51
52        let gov_action_id = GovernanceActionId::deserialize_nullable(raw)
53            .map_err(|e| e.annotate("gov_action_id"))?;
54
55        let protocol_param_updates = ProtocolParamUpdate::deserialize(raw)
56            .map_err(|e| e.annotate("protocol_param_updates"))?;
57
58        let policy_hash = if has_policy_hash {
59            ScriptHash::deserialize_nullable(raw).map_err(|e| e.annotate("policy_hash"))?
60        } else {
61            None
62        };
63
64        return Ok(ParameterChangeAction {
65            gov_action_id,
66            protocol_param_updates,
67            policy_hash,
68        });
69    }
70}
cardano_serialization_lib/serialization/governance/proposals/parameter_change_action.rs

cardano_serialization_lib/serialization/governance/proposals/
parameter_change_action.rs
