feat(interface): support wincode serialization (#348)

Author: kskalski

Cargo.lock

@@ -33,6 +33,7 @@ solana-pubkey = { version = "4.2.0", default-features = false }
 solana-system-interface = "3.0.0"
 solana-sysvar = { version = "4.0.0", optional = true }
 solana-sysvar-id = { version = "3.1.0", optional = true }
+wincode = { version = "0.5.2", features = ["derive"],  optional = true }
 
 [target.'cfg(not(target_os = "solana"))'.dependencies]
 serde_json = { version = "1.0", optional = true }
@@ -82,3 +83,4 @@ frozen-abi = [
 ]
 serde = ["dep:serde", "dep:serde_derive", "solana-pubkey/serde", "solana-sysvar/serde"]
 sysvar = ["dep:solana-sysvar", "dep:solana-sysvar-id"]
+wincode = ["dep:wincode", "solana-pubkey/wincode"]

interface/Cargo.toml

@@ -13,6 +13,7 @@ use {
     feature = "serde",
     derive(serde_derive::Deserialize, serde_derive::Serialize)
 )]
+#[cfg_attr(feature = "wincode", derive(wincode::SchemaRead, wincode::SchemaWrite))]
 pub enum StakeError {
     // 0
     /// Not enough credits to redeem.

interface/src/error.rs

@@ -2,6 +2,7 @@
 use borsh::{BorshDeserialize, BorshSchema, BorshSerialize};
 
 /// Additional flags for stake state.
+#[repr(transparent)]
 #[cfg_attr(feature = "codama", derive(codama_macros::CodamaType))]
 #[derive(Copy, PartialEq, Eq, Clone, PartialOrd, Ord, Hash, Debug)]
 #[cfg_attr(feature = "frozen-abi", derive(solana_frozen_abi_macro::AbiExample))]
@@ -14,6 +15,7 @@ use borsh::{BorshDeserialize, BorshSchema, BorshSerialize};
     feature = "serde",
     derive(serde_derive::Deserialize, serde_derive::Serialize)
 )]
+#[cfg_attr(feature = "wincode", derive(wincode::SchemaRead, wincode::SchemaWrite))]
 pub struct StakeFlags {
     bits: u8,
 }

interface/src/stake_flags.rs

@@ -13,6 +13,7 @@ pub const MAX_ENTRIES: usize = 512; // it should never take as many as 512 epoch
     feature = "serde",
     derive(serde_derive::Deserialize, serde_derive::Serialize)
 )]
+#[cfg_attr(feature = "wincode", derive(wincode::SchemaRead, wincode::SchemaWrite))]
 #[derive(Debug, PartialEq, Eq, Default, Clone)]
 pub struct StakeHistoryEntry {
     pub effective: u64,    // effective stake at this epoch
@@ -62,6 +63,7 @@ impl std::ops::Add for StakeHistoryEntry {
     feature = "serde",
     derive(serde_derive::Deserialize, serde_derive::Serialize)
 )]
+#[cfg_attr(feature = "wincode", derive(wincode::SchemaRead, wincode::SchemaWrite))]
 #[derive(Debug, PartialEq, Eq, Default, Clone)]
 pub struct StakeHistory(Vec<(Epoch, StakeHistoryEntry)>);
 

interface/src/stake_history.rs

@@ -158,6 +158,7 @@ impl StakeState {
     feature = "serde",
     derive(serde_derive::Deserialize, serde_derive::Serialize)
 )]
+#[cfg_attr(feature = "wincode", derive(wincode::SchemaRead, wincode::SchemaWrite))]
 #[allow(clippy::large_enum_variant)]
 pub enum StakeStateV2 {
     #[default]
@@ -282,11 +283,13 @@ impl StakeStateV2 {
     feature = "serde",
     derive(serde_derive::Deserialize, serde_derive::Serialize)
 )]
+#[cfg_attr(feature = "wincode", derive(wincode::SchemaRead, wincode::SchemaWrite))]
 pub enum StakeAuthorize {
     Staker,
     Withdrawer,
 }
 
+#[repr(C)]
 #[cfg_attr(feature = "codama", derive(CodamaType))]
 #[derive(Default, Debug, PartialEq, Eq, Clone, Copy)]
 #[cfg_attr(feature = "frozen-abi", derive(solana_frozen_abi_macro::AbiExample))]
@@ -299,6 +302,7 @@ pub enum StakeAuthorize {
     feature = "serde",
     derive(serde_derive::Deserialize, serde_derive::Serialize)
 )]
+#[cfg_attr(feature = "wincode", derive(wincode::SchemaRead, wincode::SchemaWrite))]
 pub struct Lockup {
     /// `UnixTimestamp` at which this stake will allow withdrawal, unless the
     ///   transaction is signed by the custodian
@@ -319,6 +323,7 @@ impl Lockup {
     }
 }
 
+#[repr(C)]
 #[cfg_attr(feature = "codama", derive(CodamaType))]
 #[derive(Default, Debug, PartialEq, Eq, Clone, Copy)]
 #[cfg_attr(feature = "frozen-abi", derive(solana_frozen_abi_macro::AbiExample))]
@@ -331,6 +336,7 @@ impl Lockup {
     feature = "serde",
     derive(serde_derive::Deserialize, serde_derive::Serialize)
 )]
+#[cfg_attr(feature = "wincode", derive(wincode::SchemaRead, wincode::SchemaWrite))]
 pub struct Authorized {
     pub staker: Pubkey,
     pub withdrawer: Pubkey,
@@ -402,6 +408,7 @@ impl Authorized {
     }
 }
 
+#[repr(C)]
 #[cfg_attr(feature = "codama", derive(CodamaType))]
 #[derive(Default, Debug, PartialEq, Eq, Clone, Copy)]
 #[cfg_attr(feature = "frozen-abi", derive(solana_frozen_abi_macro::AbiExample))]
@@ -414,6 +421,7 @@ impl Authorized {
     feature = "serde",
     derive(serde_derive::Deserialize, serde_derive::Serialize)
 )]
+#[cfg_attr(feature = "wincode", derive(wincode::SchemaRead, wincode::SchemaWrite))]
 pub struct Meta {
     #[deprecated(
         since = "3.0.1",
@@ -462,6 +470,7 @@ impl Meta {
     }
 }
 
+#[repr(C)]
 #[cfg_attr(feature = "codama", derive(CodamaType))]
 #[derive(Debug, PartialEq, Clone, Copy)]
 #[cfg_attr(feature = "frozen-abi", derive(solana_frozen_abi_macro::AbiExample))]
@@ -474,6 +483,7 @@ impl Meta {
     feature = "serde",
     derive(serde_derive::Deserialize, serde_derive::Serialize)
 )]
+#[cfg_attr(feature = "wincode", derive(wincode::SchemaRead, wincode::SchemaWrite))]
 pub struct Delegation {
     /// to whom the stake is delegated
     pub voter_pubkey: Pubkey,
@@ -702,6 +712,7 @@ impl Delegation {
     }
 }
 
+#[repr(C)]
 #[cfg_attr(feature = "codama", derive(CodamaType))]
 #[derive(Debug, Default, PartialEq, Clone, Copy)]
 #[cfg_attr(feature = "frozen-abi", derive(solana_frozen_abi_macro::AbiExample))]
@@ -714,6 +725,7 @@ impl Delegation {
     feature = "serde",
     derive(serde_derive::Deserialize, serde_derive::Serialize)
 )]
+#[cfg_attr(feature = "wincode", derive(wincode::SchemaRead, wincode::SchemaWrite))]
 pub struct Stake {
     pub delegation: Delegation,
     /// credits observed is credits from vote account state when delegated or redeemed