stake-contract: rename slashed to burnt amount

contracts/stake/src/lib.rs

@@ -126,10 +126,10 @@ unsafe fn hard_slash(arg_len: u32) -> u32 {
 }
 
 #[no_mangle]
-unsafe fn set_slashed_amount(arg_len: u32) -> u32 {
-    rusk_abi::wrap_call(arg_len, |slashed_amount| {
+unsafe fn set_burnt_amount(arg_len: u32) -> u32 {
+    rusk_abi::wrap_call(arg_len, |burnt_amount| {
         assert_external_caller();
-        STATE.set_slashed_amount(slashed_amount)
+        STATE.set_burnt_amount(burnt_amount)
     })
 }
 

contracts/stake/src/state.rs

@@ -32,7 +32,7 @@ use crate::*;
 #[derive(Debug, Default, Clone)]
 pub struct StakeState {
     stakes: BTreeMap<[u8; StakePublicKey::SIZE], (StakeData, StakePublicKey)>,
-    slashed_amount: u64,
+    burnt_amount: u64,
     previous_block_state: BTreeMap<
         [u8; StakePublicKey::SIZE],
         (Option<StakeData>, StakePublicKey),
@@ -49,7 +49,7 @@ impl StakeState {
     pub const fn new() -> Self {
         Self {
             stakes: BTreeMap::new(),
-            slashed_amount: 0u64,
+            burnt_amount: 0u64,
             previous_block_state: BTreeMap::new(),
             previous_block_height: 0,
         }
@@ -279,7 +279,7 @@ impl StakeState {
 
     /// Total amount slashed from the genesis
     pub fn slashed_amount(&self) -> u64 {
-        self.slashed_amount
+        self.burnt_amount
     }
 
     /// Version of the stake contract
@@ -375,7 +375,7 @@ impl StakeState {
         Self::deduct_module_balance(to_slash);
 
         // Update the total slashed amount
-        self.slashed_amount += to_slash;
+        self.burnt_amount += to_slash;
 
         rusk_abi::emit(
             "hard_slash",
@@ -390,9 +390,9 @@ impl StakeState {
             .or_insert((prev_value, *stake_pk));
     }
 
-    /// Sets the slashed amount
-    pub fn set_slashed_amount(&mut self, slashed_amount: u64) {
-        self.slashed_amount = slashed_amount;
+    /// Sets the burnt amount
+    pub fn set_burnt_amount(&mut self, burnt_amount: u64) {
+        self.burnt_amount = burnt_amount;
     }
 
     /// Feeds the host with the stakes.