Session 5b

starknet_contracts/Scarb.lock

@@ -17,7 +17,7 @@ dependencies = [
 ]
 
 [[package]]
-name = "Starknet_contracts"
+name = "starknet_contracts"
 version = "0.1.0"
 dependencies = [
  "snforge_std",

starknet_contracts/Scarb.toml

@@ -1,19 +1,25 @@
 [package]
-name = "Starknet_contracts"
+name = "starknet_contracts"
 version = "0.1.0"
 edition = "2024_07"
 
 # See more keys and their definitions at https://docs.swmansion.com/scarb/docs/reference/manifest.html
 
 [dependencies]
-Starknet = "2.11.4"
+starknet = "2.11.4"
 
 [dev-dependencies]
 snforge_std = "0.43.1"
 assert_macros = "2.11.4"
 
-[[target.Starknet-contract]]
+[[target.starknet-contract]]
 sierra = true
+casm = true
+path = "starknet_contracts/src/contracts/counter.cairo"
+
+[toolchain]
+sierra = true
+casm = true
 
 [scripts]
 test = "snforge test"

starknet_contracts/src/contracts/HelloStarknet.cairo

@@ -1,11 +1,11 @@
 /// Simple contract for managing balance.
-#[Starknet::contract]
+#[starknet::contract]
 pub mod HelloStarknet {
 
-    use Starknet_contracts::interfaces::IHelloStarknet::IHelloStarknet;
+    use starknet_contracts::interfaces::IHelloStarknet::IHellostarknet;
     // use Starknet::storage::{StoragePointerReadAccess, StoragePathEntry, StoragePointerWriteAccess, Map };
-    use Starknet::storage::{Map, StorageMapReadAccess, StorageMapWriteAccess, StoragePointerReadAccess, StoragePointerWriteAccess };
-    use Starknet::{ContractAddress, get_caller_address};
+    use starknet::storage::{Map, StorageMapReadAccess, StorageMapWriteAccess, StoragePointerReadAccess, StoragePointerWriteAccess };
+    use starknet::{ContractAddress, get_caller_address};
 
     #[storage]
     struct Storage {
@@ -14,19 +14,25 @@ pub mod HelloStarknet {
     }
 
     #[event]
-    #[derive(Drop, Starknet::Event)]
+    #[derive(Drop, starknet::Event)]
     pub enum Event {
         Balance : BalanceIncreased,
     }
 
-    #[derive(Drop, Starknet::Event)]
+    #[derive(Drop, starknet::Event)]
     pub struct BalanceIncreased {
         pub caller: ContractAddress,
         pub amount: felt252,
     }
 
     #[abi(embed_v0)]
-    impl HelloStarknetImpl of IHelloStarknet<ContractState> {
+    impl HelloStarknetImpl of IHellostarknet<ContractState> {
+        fn set_balance(ref self: ContractState, amount: felt252) {
+            self.balance.write(amount);
+        }
+        fn reset_balance(ref self: ContractState) {
+            self.balance.write(0);
+        }
         fn increase_balance(ref self: ContractState, amount: felt252) {
             assert(amount != 0, 'Amount cannot be 0');
             let caller = get_caller_address();
@@ -49,4 +55,9 @@ pub mod HelloStarknet {
             self.balance.read()
         }
     }
-}
+}
+
+// this is the link to a hackmd file detailing the steps taken to achieve the process
+// https://hackmd.io/@demigodjayydy/B1uVi-23xx
+
+// stark token transfer transaction hash: 0x007d9c57cc95103408b263c3743b1b88b42277870555dbeb1b2b09e4e60143e4

starknet_contracts/src/contracts/counter.cairo

@@ -1,22 +1,22 @@
-#[Starknet::contract]
-pub mod Counter {
-    // use Starknet::ContractAddress;
-    // use Starknet::get_caller_address;
-    use Starknet_contracts::interfaces::ICounter::ICounter;
-    use Starknet::storage::{StoragePointerReadAccess, StoragePointerWriteAccess};
+#[starknet::contract]
+pub mod counter {
+    // use starknet::ContractAddress;
+    // use starknet::get_caller_address;
+    use starknet_contracts::interfaces::ICounter::ICounter;
+    use starknet::storage::{StoragePointerReadAccess, StoragePointerWriteAccess};
 
     #[storage]
     struct Storage {
         count: u32,
     }
 
     #[event]
-    #[derive(Drop, Starknet::Event)]
+    #[derive(Drop, starknet::Event)]
     pub enum Event {
         CountUpdated : CountUpdated,
     }
 
-    #[derive(Drop, Starknet::Event)]
+    #[derive(Drop, starknet::Event)]
     struct CountUpdated {
         old_value: u32,
         new_value: u32,

starknet_contracts/src/interfaces/ICounter.cairo

@@ -1,4 +1,4 @@
-#[Starknet::interface]
+#[starknet::interface]
 pub trait ICounter<TContractState> {
     fn get_count(self: @TContractState) -> u32;
     fn increment(ref self: TContractState);

starknet_contracts/src/interfaces/IHelloStarknet.cairo

@@ -1,7 +1,11 @@
 /// Interface representing `HelloContract`.
 /// This interface allows modification and retrieval of the contract balance.
-#[Starknet::interface]
-pub trait IHelloStarknet<TContractState> {
+#[starknet::interface]
+pub trait IHellostarknet<TContractState> {
+    /// set contract balance.
+    fn set_balance(ref self: TContractState, amount: felt252);
+    /// reset contract balance
+    fn reset_balance(ref self:TContractState);
     /// Increase contract balance.
     fn increase_balance(ref self: TContractState, amount: felt252);
     /// Retrieve contract balance.