execution-core: change events relates to stake-contract

See also #2265

execution-core/src/stake.rs

@@ -17,7 +17,7 @@ use crate::{
         PublicKey as BlsPublicKey, SecretKey as BlsSecretKey,
         Signature as BlsSignature,
     },
-    transfer::withdraw::{Withdraw as TransferWithdraw, WithdrawReceiver},
+    transfer::withdraw::Withdraw as TransferWithdraw,
     ContractId,
 };
 
@@ -196,22 +196,20 @@ impl Withdraw {
 pub struct StakeEvent {
     /// Account associated to the event.
     pub account: BlsPublicKey,
-    /// Value of the relevant operation, be it `stake`, `reward` or `slash`.
-    ///
-    /// In case of `suspended` the amount refers to the next eligibility
+    /// Value of the relevant operation, be it `stake`, `unstake`,`withdraw`
     pub value: u64,
 }
 
-/// Event emitted after a stake contract operation is performed.
+/// Event emitted after a slash operation is performed.
 #[derive(Debug, Clone, Archive, Deserialize, Serialize)]
 #[archive_attr(derive(CheckBytes))]
-pub struct StakeWithReceiverEvent {
-    /// Account associated to the event.
+pub struct SlashEvent {
+    /// Account slashed.
     pub account: BlsPublicKey,
-    /// Value of the relevant operation, be it `unstake` or `withdraw`.
+    /// Slashed amount
     pub value: u64,
-    /// The receiver of the action
-    pub receiver: Option<WithdrawReceiver>,
+    /// New eligibility for the slashed account
+    pub next_eligibility: u64,
 }
 
 /// The minimum amount of Dusk one can stake.