feat(blockifier, starknet_api): add explcit typing and arithmetic to …

…gas amount/price, and fee

crates/blockifier/src/blockifier/block.rs

@@ -1,7 +1,5 @@
-use std::num::NonZeroU128;
-
 use log::warn;
-use starknet_api::block::{BlockHash, BlockNumber, BlockTimestamp};
+use starknet_api::block::{BlockHash, BlockNumber, BlockTimestamp, GasPrice, NonzeroGasPrice};
 use starknet_api::core::ContractAddress;
 use starknet_api::state::StorageKey;
 use starknet_types_core::felt::Felt;
@@ -29,34 +27,34 @@ pub struct BlockInfo {
 
 #[derive(Clone, Debug)]
 pub struct GasPrices {
-    eth_l1_gas_price: NonZeroU128,       // In wei.
-    strk_l1_gas_price: NonZeroU128,      // In fri.
-    eth_l1_data_gas_price: NonZeroU128,  // In wei.
-    strk_l1_data_gas_price: NonZeroU128, // In fri.
-    eth_l2_gas_price: NonZeroU128,       // In wei.
-    strk_l2_gas_price: NonZeroU128,      // In fri.
+    eth_l1_gas_price: NonzeroGasPrice,       // In wei.
+    strk_l1_gas_price: NonzeroGasPrice,      // In fri.
+    eth_l1_data_gas_price: NonzeroGasPrice,  // In wei.
+    strk_l1_data_gas_price: NonzeroGasPrice, // In fri.
+    eth_l2_gas_price: NonzeroGasPrice,       // In wei.
+    strk_l2_gas_price: NonzeroGasPrice,      // In fri.
 }
 
 #[derive(Debug)]
 pub struct GasPricesForFeeType {
-    pub l1_gas_price: NonZeroU128,
-    pub l1_data_gas_price: NonZeroU128,
-    pub l2_gas_price: NonZeroU128,
+    pub l1_gas_price: NonzeroGasPrice,
+    pub l1_data_gas_price: NonzeroGasPrice,
+    pub l2_gas_price: NonzeroGasPrice,
 }
 
 impl GasPrices {
     pub fn new(
-        eth_l1_gas_price: NonZeroU128,
-        strk_l1_gas_price: NonZeroU128,
-        eth_l1_data_gas_price: NonZeroU128,
-        strk_l1_data_gas_price: NonZeroU128,
-        eth_l2_gas_price: NonZeroU128,
-        strk_l2_gas_price: NonZeroU128,
+        eth_l1_gas_price: NonzeroGasPrice,
+        strk_l1_gas_price: NonzeroGasPrice,
+        eth_l1_data_gas_price: NonzeroGasPrice,
+        strk_l1_data_gas_price: NonzeroGasPrice,
+        eth_l2_gas_price: NonzeroGasPrice,
+        strk_l2_gas_price: NonzeroGasPrice,
     ) -> Self {
         // TODO(Aner): fix backwards compatibility.
         let expected_eth_l2_gas_price = VersionedConstants::latest_constants()
             .convert_l1_to_l2_gas_price_round_up(eth_l1_gas_price.into());
-        if u128::from(eth_l2_gas_price) != expected_eth_l2_gas_price {
+        if GasPrice::from(eth_l2_gas_price) != expected_eth_l2_gas_price {
             // TODO!(Aner): change to panic! Requires fixing several tests.
             warn!(
                 "eth_l2_gas_price does not match expected! eth_l2_gas_price:{eth_l2_gas_price}, \
@@ -65,7 +63,7 @@ impl GasPrices {
         }
         let expected_strk_l2_gas_price = VersionedConstants::latest_constants()
             .convert_l1_to_l2_gas_price_round_up(strk_l1_gas_price.into());
-        if u128::from(strk_l2_gas_price) != expected_strk_l2_gas_price {
+        if GasPrice::from(strk_l2_gas_price) != expected_strk_l2_gas_price {
             // TODO!(Aner): change to panic! Requires fixing test_discounted_gas_overdraft
             warn!(
                 "strk_l2_gas_price does not match expected! \
@@ -83,21 +81,21 @@ impl GasPrices {
         }
     }
 
-    pub fn get_l1_gas_price_by_fee_type(&self, fee_type: &FeeType) -> NonZeroU128 {
+    pub fn get_l1_gas_price_by_fee_type(&self, fee_type: &FeeType) -> NonzeroGasPrice {
         match fee_type {
             FeeType::Strk => self.strk_l1_gas_price,
             FeeType::Eth => self.eth_l1_gas_price,
         }
     }
 
-    pub fn get_l1_data_gas_price_by_fee_type(&self, fee_type: &FeeType) -> NonZeroU128 {
+    pub fn get_l1_data_gas_price_by_fee_type(&self, fee_type: &FeeType) -> NonzeroGasPrice {
         match fee_type {
             FeeType::Strk => self.strk_l1_data_gas_price,
             FeeType::Eth => self.eth_l1_data_gas_price,
         }
     }
 
-    pub fn get_l2_gas_price_by_fee_type(&self, fee_type: &FeeType) -> NonZeroU128 {
+    pub fn get_l2_gas_price_by_fee_type(&self, fee_type: &FeeType) -> NonzeroGasPrice {
         match fee_type {
             FeeType::Strk => self.strk_l2_gas_price,
             FeeType::Eth => self.eth_l2_gas_price,

crates/blockifier/src/blockifier/stateful_validator_test.rs

@@ -1,6 +1,6 @@
 use assert_matches::assert_matches;
 use rstest::rstest;
-use starknet_api::transaction::{Fee, TransactionVersion, ValidResourceBounds};
+use starknet_api::transaction::{TransactionVersion, ValidResourceBounds};
 
 use crate::blockifier::stateful_validator::StatefulValidator;
 use crate::context::BlockContext;
@@ -53,7 +53,7 @@ fn test_tx_validator(
         class_hash,
         validate_constructor,
         // TODO(Arni, 1/5/2024): Add test for insufficient maximal resources.
-        max_fee: Fee(BALANCE),
+        max_fee: BALANCE,
         resource_bounds: max_l1_resource_bounds,
         ..Default::default()
     };

crates/blockifier/src/blockifier/transaction_executor_test.rs

@@ -1,7 +1,6 @@
 use assert_matches::assert_matches;
 use pretty_assertions::assert_eq;
 use rstest::rstest;
-use starknet_api::execution_resources::GasAmount;
 use starknet_api::test_utils::NonceManager;
 use starknet_api::transaction::{Fee, TransactionVersion};
 use starknet_api::{declare_tx_args, deploy_account_tx_args, felt, invoke_tx_args, nonce};
@@ -121,7 +120,7 @@ fn test_declare(
             class_hash: declared_contract.get_class_hash(),
             compiled_class_hash: declared_contract.get_compiled_class_hash(),
             version: tx_version,
-            resource_bounds: l1_resource_bounds(GasAmount(0), DEFAULT_STRK_L1_GAS_PRICE),
+            resource_bounds: l1_resource_bounds(0_u8.into(), DEFAULT_STRK_L1_GAS_PRICE.into()),
         },
         calculate_class_info_for_testing(declared_contract.get_class()),
     )
@@ -141,7 +140,7 @@ fn test_deploy_account(
     let tx = deploy_account_tx(
         deploy_account_tx_args! {
             class_hash: account_contract.get_class_hash(),
-            resource_bounds: l1_resource_bounds(GasAmount(0), DEFAULT_STRK_L1_GAS_PRICE),
+            resource_bounds: l1_resource_bounds(0_u8.into(), DEFAULT_STRK_L1_GAS_PRICE.into()),
             version,
         },
         &mut NonceManager::default(),

crates/blockifier/src/bouncer_test.rs

@@ -3,6 +3,7 @@ use std::collections::{HashMap, HashSet};
 use cairo_vm::types::builtin_name::BuiltinName;
 use rstest::rstest;
 use starknet_api::core::{ClassHash, ContractAddress, PatriciaKey};
+use starknet_api::transaction::Fee;
 use starknet_api::{class_hash, contract_address, felt, patricia_key, storage_key};
 
 use super::BouncerConfig;
@@ -186,7 +187,8 @@ fn test_bouncer_try_update(
 
     use crate::fee::resources::{ComputationResources, TransactionResources};
 
-    let state = &mut test_state(&BlockContext::create_for_account_testing().chain_info, 0, &[]);
+    let state =
+        &mut test_state(&BlockContext::create_for_account_testing().chain_info, Fee(0), &[]);
     let mut transactional_state = TransactionalState::create_transactional(state);
 
     // Setup the bouncer.

crates/blockifier/src/concurrency/fee_utils_test.rs

@@ -30,7 +30,7 @@ pub fn test_fill_sequencer_balance_reads(
     let chain_info = &block_context.chain_info;
     let state = &mut test_state_inner(chain_info, BALANCE, &[(account, 1)], erc20_version);
 
-    let sequencer_balance = 100;
+    let sequencer_balance = Fee(100);
     let sequencer_address = block_context.block_info.sequencer_address;
     fund_account(chain_info, sequencer_address, sequencer_balance, &mut state.state);
 
@@ -58,7 +58,7 @@ pub fn test_add_fee_to_sequencer_balance(
 ) {
     let block_context = BlockContext::create_for_account_testing();
     let account = FeatureContract::Empty(CairoVersion::Cairo1);
-    let mut state = test_state(&block_context.chain_info, 0, &[(account, 1)]);
+    let mut state = test_state(&block_context.chain_info, Fee(0), &[(account, 1)]);
     let (sequencer_balance_key_low, sequencer_balance_key_high) =
         get_sequencer_balance_keys(&block_context);
 

crates/blockifier/src/concurrency/versioned_state_test.rs

@@ -238,7 +238,10 @@ fn test_run_parallel_txs(max_l1_resource_bounds: ValidResourceBounds) {
     let deploy_account_tx_1 = deploy_account_tx(
         deploy_account_tx_args! {
             class_hash: account_without_validation.get_class_hash(),
-            resource_bounds: l1_resource_bounds(u128::from(!zero_bounds).into(), DEFAULT_STRK_L1_GAS_PRICE),
+            resource_bounds: l1_resource_bounds(
+                u8::from(!zero_bounds).into(),
+                DEFAULT_STRK_L1_GAS_PRICE.into()
+            ),
         },
         &mut NonceManager::default(),
     );
@@ -264,7 +267,7 @@ fn test_run_parallel_txs(max_l1_resource_bounds: ValidResourceBounds) {
     let deployed_account_balance_key = get_fee_token_var_address(account_address);
     let fee_token_address = chain_info.fee_token_address(&fee_type);
     state_2
-        .set_storage_at(fee_token_address, deployed_account_balance_key, felt!(BALANCE))
+        .set_storage_at(fee_token_address, deployed_account_balance_key, felt!(BALANCE.0))
         .unwrap();
 
     let block_context_1 = block_context.clone();

crates/blockifier/src/concurrency/worker_logic_test.rs

@@ -351,7 +351,7 @@ fn test_worker_execute(max_l1_resource_bounds: ValidResourceBounds) {
     let execution_output = worker_executor.execution_outputs[tx_index].lock().unwrap();
     let execution_output = execution_output.as_ref().unwrap();
     let result = execution_output.result.as_ref().unwrap();
-    let account_balance = BALANCE - result.receipt.fee.0;
+    let account_balance = BALANCE.0 - result.receipt.fee.0;
     assert!(!result.is_reverted());
 
     let erc20 = FeatureContract::ERC20(CairoVersion::Cairo0);
@@ -381,7 +381,7 @@ fn test_worker_execute(max_l1_resource_bounds: ValidResourceBounds) {
         ]),
         storage: HashMap::from([
             ((test_contract_address, storage_key), felt!(0_u8)),
-            ((erc_contract_address, account_balance_key_low), felt!(BALANCE)),
+            ((erc_contract_address, account_balance_key_low), felt!(BALANCE.0)),
             ((erc_contract_address, account_balance_key_high), felt!(0_u8)),
         ]),
         // When running an entry point, we load its contract class.

crates/blockifier/src/execution/deprecated_syscalls/deprecated_syscalls_test.rs

@@ -55,7 +55,7 @@ use crate::{check_entry_point_execution_error_for_custom_hint, retdata};
 #[test]
 fn test_storage_read_write() {
     let test_contract = FeatureContract::TestContract(CairoVersion::Cairo0);
-    let mut state = test_state(&ChainInfo::create_for_testing(), 0, &[(test_contract, 1)]);
+    let mut state = test_state(&ChainInfo::create_for_testing(), Fee(0), &[(test_contract, 1)]);
 
     let key = felt!(1234_u16);
     let value = felt!(18_u8);
@@ -79,7 +79,7 @@ fn test_storage_read_write() {
 #[test]
 fn test_library_call() {
     let test_contract = FeatureContract::TestContract(CairoVersion::Cairo0);
-    let mut state = test_state(&ChainInfo::create_for_testing(), 0, &[(test_contract, 1)]);
+    let mut state = test_state(&ChainInfo::create_for_testing(), Fee(0), &[(test_contract, 1)]);
     let inner_entry_point_selector = selector_from_name("test_storage_read_write");
     let calldata = calldata![
         test_contract.get_class_hash().0, // Class hash.
@@ -103,7 +103,7 @@ fn test_library_call() {
 #[test]
 fn test_nested_library_call() {
     let test_contract = FeatureContract::TestContract(CairoVersion::Cairo0);
-    let mut state = test_state(&ChainInfo::create_for_testing(), 0, &[(test_contract, 1)]);
+    let mut state = test_state(&ChainInfo::create_for_testing(), Fee(0), &[(test_contract, 1)]);
     let (key, value) = (255_u64, 44_u64);
     let outer_entry_point_selector = selector_from_name("test_library_call");
     let inner_entry_point_selector = selector_from_name("test_storage_read_write");
@@ -208,7 +208,7 @@ fn test_nested_library_call() {
 fn test_call_contract() {
     let chain_info = &ChainInfo::create_for_testing();
     let test_contract = FeatureContract::TestContract(CairoVersion::Cairo0);
-    let mut state = test_state(chain_info, 0, &[(test_contract, 1)]);
+    let mut state = test_state(chain_info, Fee(0), &[(test_contract, 1)]);
     let test_address = test_contract.get_instance_address(0);
 
     let trivial_external_entry_point = trivial_external_entry_point_new(test_contract);
@@ -277,7 +277,7 @@ fn test_replace_class() {
     let chain_info = &ChainInfo::create_for_testing();
     let test_contract = FeatureContract::TestContract(CairoVersion::Cairo0);
     let empty_contract = FeatureContract::Empty(CairoVersion::Cairo0);
-    let mut state = test_state(chain_info, 0, &[(test_contract, 1), (empty_contract, 1)]);
+    let mut state = test_state(chain_info, Fee(0), &[(test_contract, 1), (empty_contract, 1)]);
     let test_address = test_contract.get_instance_address(0);
     // Replace with undeclared class hash.
     let calldata = calldata![felt!(1234_u16)];
@@ -342,8 +342,11 @@ fn test_deploy(
 ) {
     let test_contract = FeatureContract::TestContract(CairoVersion::Cairo0);
     let empty_contract = FeatureContract::Empty(CairoVersion::Cairo0);
-    let mut state =
-        test_state(&ChainInfo::create_for_testing(), 0, &[(empty_contract, 0), (test_contract, 1)]);
+    let mut state = test_state(
+        &ChainInfo::create_for_testing(),
+        Fee(0),
+        &[(empty_contract, 0), (test_contract, 1)],
+    );
 
     let class_hash = if constructor_exists {
         test_contract.get_class_hash()
@@ -418,7 +421,7 @@ fn test_block_info_syscalls(
     calldata: Calldata,
 ) {
     let test_contract = FeatureContract::TestContract(CairoVersion::Cairo0);
-    let mut state = test_state(&ChainInfo::create_for_testing(), 0, &[(test_contract, 1)]);
+    let mut state = test_state(&ChainInfo::create_for_testing(), Fee(0), &[(test_contract, 1)]);
     let entry_point_selector = selector_from_name(&format!("test_get_{}", block_info_member_name));
     let entry_point_call = CallEntryPoint {
         entry_point_selector,
@@ -453,7 +456,7 @@ fn test_block_info_syscalls(
 #[rstest]
 fn test_tx_info(#[values(false, true)] only_query: bool) {
     let test_contract = FeatureContract::TestContract(CairoVersion::Cairo0);
-    let mut state = test_state(&ChainInfo::create_for_testing(), 0, &[(test_contract, 1)]);
+    let mut state = test_state(&ChainInfo::create_for_testing(), Fee(0), &[(test_contract, 1)]);
     let mut version = felt!(1_u8);
     if only_query {
         let simulate_version_base = Pow::pow(felt!(2_u8), QUERY_VERSION_BASE_BIT);
@@ -556,7 +559,7 @@ fn emit_events(
     data: &[Felt],
 ) -> Result<CallInfo, EntryPointExecutionError> {
     let test_contract = FeatureContract::TestContract(CairoVersion::Cairo0);
-    let mut state = test_state(&ChainInfo::create_for_testing(), 0, &[(test_contract, 1)]);
+    let mut state = test_state(&ChainInfo::create_for_testing(), Fee(0), &[(test_contract, 1)]);
     let calldata = Calldata(
         [
             n_emitted_events.to_owned(),

crates/blockifier/src/execution/entry_point.rs

@@ -27,7 +27,7 @@ use crate::execution::execution_utils::execute_entry_point_call_wrapper;
 use crate::state::state_api::{State, StateResult};
 use crate::transaction::objects::{HasRelatedFeeType, TransactionInfo};
 use crate::transaction::transaction_types::TransactionType;
-use crate::utils::{u128_from_usize, usize_from_u128};
+use crate::utils::usize_from_u128;
 use crate::versioned_constants::{GasCosts, VersionedConstants};
 
 #[cfg(test)]
@@ -269,26 +269,10 @@ impl EntryPointExecutionContext {
         // transactions derive this value from the `max_fee`.
         let tx_gas_upper_bound = match tx_info {
             TransactionInfo::Deprecated(context) => {
-                let max_cairo_steps = context.max_fee.0
-                    / block_info.gas_prices.get_l1_gas_price_by_fee_type(&tx_info.fee_type());
-                // FIXME: This is saturating in the python bootstrapping test. Fix the value so
-                // that it'll fit in a usize and remove the `as`.
-                usize::try_from(max_cairo_steps).unwrap_or_else(|_| {
-                    log::error!(
-                        "Performed a saturating cast from u128 to usize: {max_cairo_steps:?}"
-                    );
-                    usize::MAX
-                })
-            }
-            TransactionInfo::Current(context) => {
-                // TODO(Ori, 1/2/2024): Write an indicative expect message explaining why the
-                // convertion works.
-                context
-                    .l1_resource_bounds()
-                    .max_amount
-                    .try_into()
-                    .expect("Failed to convert u64 to usize.")
+                context.max_fee
+                    / block_info.gas_prices.get_l1_gas_price_by_fee_type(&tx_info.fee_type())
             }
+            TransactionInfo::Current(context) => context.l1_resource_bounds().max_amount.into(),
         };
 
         // Use saturating upper bound to avoid overflow. This is safe because the upper bound is
@@ -297,7 +281,7 @@ impl EntryPointExecutionContext {
         let upper_bound_u128 = if gas_per_step.is_zero() {
             u128::MAX
         } else {
-            (gas_per_step.inv() * u128_from_usize(tx_gas_upper_bound)).to_integer()
+            (gas_per_step.inv() * tx_gas_upper_bound.0).to_integer()
         };
         let tx_upper_bound = usize_from_u128(upper_bound_u128).unwrap_or_else(|_| {
             log::warn!(