Change serialize hierarchy for Governance

Change-Id: Id5581f84e9d325e1546f1690ba977b7470915491

solana/bridge/program/src/instructions.rs

@@ -151,7 +151,7 @@ pub fn verify_signatures(
     );
 
     let signature_set = SignatureSet::<'_, { AccountState::Uninitialized }>::key(
-        &SignatureSetDerivationData { hash: hash },
+        &SignatureSetDerivationData { hash },
         &program_id,
     );
 

solana/bridge/program/src/lib.rs

@@ -43,8 +43,10 @@ pub use api::{
 };
 
 pub use vaa::{
+    DeserializeGovernancePayload,
     DeserializePayload,
     PayloadMessage,
+    SerializeGovernancePayload,
     SerializePayload,
 };
 

solana/bridge/program/src/types.rs

@@ -1,6 +1,7 @@
 use crate::{
     api::ForeignAddress,
     vaa::{
+        SerializeGovernancePayload,
         DeserializeGovernancePayload,
         DeserializePayload,
         SerializePayload,
@@ -248,11 +249,14 @@ where
     }
 }
 
-impl DeserializeGovernancePayload for GovernancePayloadUpgrade {
+impl SerializeGovernancePayload for GovernancePayloadUpgrade {
     const MODULE: &'static str = "Core";
     const ACTION: u8 = 1;
 }
 
+impl DeserializeGovernancePayload for GovernancePayloadUpgrade {
+}
+
 pub struct GovernancePayloadGuardianSetChange {
     // New GuardianSetIndex
     pub new_guardian_set_index: u32,
@@ -298,11 +302,14 @@ where
     }
 }
 
-impl DeserializeGovernancePayload for GovernancePayloadGuardianSetChange {
+impl SerializeGovernancePayload for GovernancePayloadGuardianSetChange {
     const MODULE: &'static str = "Core";
     const ACTION: u8 = 2;
 }
 
+impl DeserializeGovernancePayload for GovernancePayloadGuardianSetChange {
+}
+
 pub struct GovernancePayloadSetMessageFee {
     // New fee in lamports
     pub fee: U256,
@@ -334,11 +341,14 @@ where
     }
 }
 
-impl DeserializeGovernancePayload for GovernancePayloadSetMessageFee {
+impl SerializeGovernancePayload for GovernancePayloadSetMessageFee {
     const MODULE: &'static str = "Core";
     const ACTION: u8 = 3;
 }
 
+impl DeserializeGovernancePayload for GovernancePayloadSetMessageFee {
+}
+
 pub struct GovernancePayloadTransferFees {
     // Amount to be transferred
     pub amount: U256,
@@ -376,11 +386,14 @@ where
     }
 }
 
-impl DeserializeGovernancePayload for GovernancePayloadTransferFees {
+impl SerializeGovernancePayload for GovernancePayloadTransferFees {
     const MODULE: &'static str = "Core";
     const ACTION: u8 = 4;
 }
 
+impl DeserializeGovernancePayload for GovernancePayloadTransferFees {
+}
+
 #[repr(u8)]
 #[derive(BorshSerialize, BorshDeserialize, Clone)]
 pub enum ConsistencyLevel {

solana/bridge/program/src/vaa.rs

@@ -39,8 +39,24 @@ use std::{
     ops::Deref,
 };
 
-pub trait SerializePayload: Sized + DeserializeGovernancePayload {
+pub trait SerializePayload: Sized {
     fn serialize<W: Write>(&self, writer: &mut W) -> std::result::Result<(), SolitaireError>;
+
+    fn try_to_vec(&self) -> std::result::Result<Vec<u8>, SolitaireError> {
+        let mut result = Vec::with_capacity(256);
+        self.serialize(&mut result)?;
+        Ok(result)
+    }
+}
+
+pub trait DeserializePayload: Sized {
+    fn deserialize(buf: &mut &[u8]) -> std::result::Result<Self, SolitaireError>;
+}
+
+pub trait SerializeGovernancePayload: SerializePayload {
+    const MODULE: &'static str;
+    const ACTION: u8;
+
     fn try_to_vec(&self) -> std::result::Result<Vec<u8>, SolitaireError> {
         let mut result = Vec::with_capacity(256);
         self.write_governance_header(&mut result)?;
@@ -62,14 +78,7 @@ pub trait SerializePayload: Sized + DeserializeGovernancePayload {
     }
 }
 
-pub trait DeserializePayload: Sized {
-    fn deserialize(buf: &mut &[u8]) -> std::result::Result<Self, SolitaireError>;
-}
-
-pub trait DeserializeGovernancePayload {
-    const MODULE: &'static str;
-    const ACTION: u8;
-
+pub trait DeserializeGovernancePayload: DeserializePayload + SerializeGovernancePayload {
     fn check_governance_header(
         c: &mut Cursor<&mut &[u8]>,
     ) -> std::result::Result<(), SolitaireError> {

solana/bridge/program/tests/integration.rs

@@ -83,7 +83,7 @@ use bridge::{
     Initialize,
     PostVAA,
     PostVAAData,
-    SerializePayload,
+    SerializeGovernancePayload,
     Signature,
 };
 use primitive_types::U256;