update to steel 2.1

basics/counter/steel/Cargo.toml

@@ -17,5 +17,5 @@ counter-api = { path = "./api", version = "0.1.0" }
 bytemuck = "1.14"
 num_enum = "0.7"
 solana-program = "1.18"
-steel = "1.3"
+steel = "2.1.0"
 thiserror = "1.0"

basics/counter/steel/program/src/increment.rs

@@ -17,8 +17,8 @@ pub fn process_increment(accounts: &[AccountInfo<'_>], data: &[u8]) -> ProgramRe
     };
     signer_info.is_signer()?;
     let counter = counter_info
-        .to_account_mut::<Counter>(&counter_api::ID)?
-        .check_mut(|c| c.value < 100)?;
+        .as_account_mut::<Counter>(&counter_api::ID)?
+        .assert_mut(|c| c.value < 100)?;
 
     // Update state
     counter.value += amount;

basics/counter/steel/program/src/initialize.rs

@@ -2,30 +2,28 @@ use counter_api::prelude::*;
 use steel::*;
 
 pub fn process_initialize(accounts: &[AccountInfo<'_>], _data: &[u8]) -> ProgramResult {
-    // Get expected pda bump.
-    let counter_bump = counter_pda().1;
-
     // Load accounts.
     let [signer_info, counter_info, system_program] = accounts else {
-        return Err(ProgramError::NotEnoughAccountKeys);        
+        return Err(ProgramError::NotEnoughAccountKeys);
     };
+
     signer_info.is_signer()?;
-    counter_info.is_empty()?.is_writable()?.has_seeds(
-        &[COUNTER_SEED],
-        counter_bump,
-        &counter_api::ID
-    )?;
+    counter_info
+        .is_empty()?
+        .is_writable()?
+        .has_seeds(&[COUNTER_SEED], &counter_api::ID)?;
     system_program.is_program(&system_program::ID)?;
 
     // Initialize counter.
     create_account::<Counter>(
         counter_info,
-        &counter_api::ID,
-        &[COUNTER_SEED, &[counter_bump]],
         system_program,
         signer_info,
+        &counter_api::ID,
+        &[COUNTER_SEED],
     )?;
-    let counter = counter_info.to_account_mut::<Counter>(&counter_api::ID)?;
+
+    let counter = counter_info.as_account_mut::<Counter>(&counter_api::ID)?;
     counter.value = 0;
 
     Ok(())