chore: create struct for gateway compiler (#383)

crates/gateway/src/compilation.rs

@@ -11,51 +11,81 @@ use starknet_sierra_compile::compile::compile_sierra_to_casm;
 use starknet_sierra_compile::errors::CompilationUtilError;
 use starknet_sierra_compile::utils::into_contract_class_for_compilation;
 
+use crate::config::GatewayCompilerConfig;
 use crate::errors::{GatewayError, GatewayResult};
 use crate::utils::is_subsequence;
 
 #[cfg(test)]
 #[path = "compilation_test.rs"]
 mod compilation_test;
 
-/// Formats the contract class for compilation, compiles it, and returns the compiled contract class
-/// wrapped in a [`ClassInfo`].
-/// Assumes the contract class is of a Sierra program which is compiled to Casm.
-pub fn compile_contract_class(declare_tx: &RPCDeclareTransaction) -> GatewayResult<ClassInfo> {
-    let RPCDeclareTransaction::V3(tx) = declare_tx;
-    let starknet_api_contract_class = &tx.contract_class;
-    let cairo_lang_contract_class =
-        into_contract_class_for_compilation(starknet_api_contract_class);
+pub struct GatewayCompiler {
+    #[allow(dead_code)]
+    pub config: GatewayCompilerConfig,
+}
+
+impl GatewayCompiler {
+    /// Formats the contract class for compilation, compiles it, and returns the compiled contract
+    /// class wrapped in a [`ClassInfo`].
+    /// Assumes the contract class is of a Sierra program which is compiled to Casm.
+    pub fn compile_contract_class(
+        &self,
+        declare_tx: &RPCDeclareTransaction,
+    ) -> GatewayResult<ClassInfo> {
+        let RPCDeclareTransaction::V3(tx) = declare_tx;
+        let starknet_api_contract_class = &tx.contract_class;
+        let cairo_lang_contract_class =
+            into_contract_class_for_compilation(starknet_api_contract_class);
 
-    // Compile Sierra to Casm.
-    let catch_unwind_result =
-        panic::catch_unwind(|| compile_sierra_to_casm(cairo_lang_contract_class));
-    let casm_contract_class = match catch_unwind_result {
-        Ok(compilation_result) => compilation_result?,
-        Err(_) => {
-            // TODO(Arni): Log the panic.
-            return Err(GatewayError::CompilationError(CompilationUtilError::CompilationPanic));
+        // Compile Sierra to Casm.
+        let catch_unwind_result =
+            panic::catch_unwind(|| compile_sierra_to_casm(cairo_lang_contract_class));
+        let casm_contract_class = match catch_unwind_result {
+            Ok(compilation_result) => compilation_result?,
+            Err(_) => {
+                // TODO(Arni): Log the panic.
+                return Err(GatewayError::CompilationError(CompilationUtilError::CompilationPanic));
+            }
+        };
+        self.validate_casm_class(&casm_contract_class)?;
+
+        let hash_result = CompiledClassHash(casm_contract_class.compiled_class_hash());
+        if hash_result != tx.compiled_class_hash {
+            return Err(GatewayError::CompiledClassHashMismatch {
+                supplied: tx.compiled_class_hash,
+                hash_result,
+            });
         }
-    };
-    validate_casm_class(&casm_contract_class)?;
 
-    let hash_result = CompiledClassHash(casm_contract_class.compiled_class_hash());
-    if hash_result != tx.compiled_class_hash {
-        return Err(GatewayError::CompiledClassHashMismatch {
-            supplied: tx.compiled_class_hash,
-            hash_result,
-        });
+        // Convert Casm contract class to Starknet contract class directly.
+        let blockifier_contract_class =
+            ContractClass::V1(ContractClassV1::try_from(casm_contract_class)?);
+        let class_info = ClassInfo::new(
+            &blockifier_contract_class,
+            starknet_api_contract_class.sierra_program.len(),
+            starknet_api_contract_class.abi.len(),
+        )?;
+        Ok(class_info)
     }
 
-    // Convert Casm contract class to Starknet contract class directly.
-    let blockifier_contract_class =
-        ContractClass::V1(ContractClassV1::try_from(casm_contract_class)?);
-    let class_info = ClassInfo::new(
-        &blockifier_contract_class,
-        starknet_api_contract_class.sierra_program.len(),
-        starknet_api_contract_class.abi.len(),
-    )?;
-    Ok(class_info)
+    // TODO(Arni): Add test.
+    fn validate_casm_class(&self, contract_class: &CasmContractClass) -> Result<(), GatewayError> {
+        let CasmContractEntryPoints { external, l1_handler, constructor } =
+            &contract_class.entry_points_by_type;
+        let entry_points_iterator =
+            external.iter().chain(l1_handler.iter()).chain(constructor.iter());
+
+        for entry_point in entry_points_iterator {
+            let builtins = &entry_point.builtins;
+            if !is_subsequence(builtins, supported_builtins()) {
+                return Err(GatewayError::UnsupportedBuiltins {
+                    builtins: builtins.clone(),
+                    supported_builtins: supported_builtins().to_vec(),
+                });
+            }
+        }
+        Ok(())
+    }
 }
 
 // TODO(Arni): Add to a config.
@@ -70,21 +100,3 @@ fn supported_builtins() -> &'static Vec<String> {
         SUPPORTED_BUILTIN_NAMES.iter().map(|builtin| builtin.to_string()).collect::<Vec<String>>()
     })
 }
-
-// TODO(Arni): Add test.
-fn validate_casm_class(contract_class: &CasmContractClass) -> Result<(), GatewayError> {
-    let CasmContractEntryPoints { external, l1_handler, constructor } =
-        &contract_class.entry_points_by_type;
-    let entry_points_iterator = external.iter().chain(l1_handler.iter()).chain(constructor.iter());
-
-    for entry_point in entry_points_iterator {
-        let builtins = &entry_point.builtins;
-        if !is_subsequence(builtins, supported_builtins()) {
-            return Err(GatewayError::UnsupportedBuiltins {
-                builtins: builtins.clone(),
-                supported_builtins: supported_builtins().to_vec(),
-            });
-        }
-    }
-    Ok(())
-}

crates/gateway/src/compilation_test.rs

@@ -2,15 +2,21 @@ use assert_matches::assert_matches;
 use blockifier::execution::contract_class::ContractClass;
 use cairo_lang_starknet_classes::allowed_libfuncs::AllowedLibfuncsError;
 use mempool_test_utils::starknet_api_test_utils::declare_tx;
+use rstest::{fixture, rstest};
 use starknet_api::core::CompiledClassHash;
 use starknet_api::rpc_transaction::{RPCDeclareTransaction, RPCTransaction};
 use starknet_sierra_compile::errors::CompilationUtilError;
 
-use crate::compilation::compile_contract_class;
+use crate::compilation::GatewayCompiler;
 use crate::errors::GatewayError;
 
-#[test]
-fn test_compile_contract_class_compiled_class_hash_missmatch() {
+#[fixture]
+fn gateway_compiler() -> GatewayCompiler {
+    GatewayCompiler { config: Default::default() }
+}
+
+#[rstest]
+fn test_compile_contract_class_compiled_class_hash_missmatch(gateway_compiler: GatewayCompiler) {
     let mut tx = assert_matches!(
         declare_tx(),
         RPCTransaction::Declare(RPCDeclareTransaction::V3(tx)) => tx
@@ -21,16 +27,16 @@ fn test_compile_contract_class_compiled_class_hash_missmatch() {
     tx.compiled_class_hash = supplied_hash;
     let declare_tx = RPCDeclareTransaction::V3(tx);
 
-    let result = compile_contract_class(&declare_tx);
+    let result = gateway_compiler.compile_contract_class(&declare_tx);
     assert_matches!(
         result.unwrap_err(),
         GatewayError::CompiledClassHashMismatch { supplied, hash_result }
         if supplied == supplied_hash && hash_result == expected_hash_result
     );
 }
 
-#[test]
-fn test_compile_contract_class_bad_sierra() {
+#[rstest]
+fn test_compile_contract_class_bad_sierra(gateway_compiler: GatewayCompiler) {
     let mut tx = assert_matches!(
         declare_tx(),
         RPCTransaction::Declare(RPCDeclareTransaction::V3(tx)) => tx
@@ -39,7 +45,7 @@ fn test_compile_contract_class_bad_sierra() {
     tx.contract_class.sierra_program = tx.contract_class.sierra_program[..100].to_vec();
     let declare_tx = RPCDeclareTransaction::V3(tx);
 
-    let result = compile_contract_class(&declare_tx);
+    let result = gateway_compiler.compile_contract_class(&declare_tx);
     assert_matches!(
         result.unwrap_err(),
         GatewayError::CompilationError(CompilationUtilError::AllowedLibfuncsError(
@@ -48,16 +54,16 @@ fn test_compile_contract_class_bad_sierra() {
     )
 }
 
-#[test]
-fn test_compile_contract_class() {
+#[rstest]
+fn test_compile_contract_class(gateway_compiler: GatewayCompiler) {
     let declare_tx = assert_matches!(
         declare_tx(),
         RPCTransaction::Declare(declare_tx) => declare_tx
     );
     let RPCDeclareTransaction::V3(declare_tx_v3) = &declare_tx;
     let contract_class = &declare_tx_v3.contract_class;
 
-    let class_info = compile_contract_class(&declare_tx).unwrap();
+    let class_info = gateway_compiler.compile_contract_class(&declare_tx).unwrap();
     assert_matches!(class_info.contract_class(), ContractClass::V1(_));
     assert_eq!(class_info.sierra_program_length(), contract_class.sierra_program.len());
     assert_eq!(class_info.abi_length(), contract_class.abi.len());

crates/gateway/src/config.rs

@@ -16,6 +16,7 @@ pub struct GatewayConfig {
     pub network_config: GatewayNetworkConfig,
     pub stateless_tx_validator_config: StatelessTransactionValidatorConfig,
     pub stateful_tx_validator_config: StatefulTransactionValidatorConfig,
+    pub compiler_config: GatewayCompilerConfig,
 }
 
 impl SerializeConfig for GatewayConfig {
@@ -30,6 +31,7 @@ impl SerializeConfig for GatewayConfig {
                 self.stateful_tx_validator_config.dump(),
                 "stateful_tx_validator_config",
             ),
+            append_sub_config_name(self.compiler_config.dump(), "compiler_config"),
         ]
         .into_iter()
         .flatten()
@@ -293,3 +295,12 @@ impl StatefulTransactionValidatorConfig {
         }
     }
 }
+
+#[derive(Clone, Debug, Default, Serialize, Deserialize, Validate, PartialEq)]
+pub struct GatewayCompilerConfig {}
+
+impl SerializeConfig for GatewayCompilerConfig {
+    fn dump(&self) -> BTreeMap<ParamPath, SerializedParam> {
+        BTreeMap::new()
+    }
+}

crates/gateway/src/gateway.rs

@@ -13,7 +13,7 @@ use starknet_mempool_types::communication::SharedMempoolClient;
 use starknet_mempool_types::mempool_types::{Account, MempoolInput};
 use tracing::{info, instrument};
 
-use crate::compilation::compile_contract_class;
+use crate::compilation::GatewayCompiler;
 use crate::config::{GatewayConfig, GatewayNetworkConfig, RpcStateReaderConfig};
 use crate::errors::{GatewayError, GatewayResult, GatewayRunError};
 use crate::rpc_state_reader::RpcStateReaderFactory;
@@ -122,7 +122,10 @@ fn process_tx(
 
     // Compile Sierra to Casm.
     let optional_class_info = match &tx {
-        RPCTransaction::Declare(declare_tx) => Some(compile_contract_class(declare_tx)?),
+        RPCTransaction::Declare(declare_tx) => {
+            let gateway_compiler = GatewayCompiler { config: Default::default() };
+            Some(gateway_compiler.compile_contract_class(declare_tx)?)
+        }
         _ => None,
     };
 

crates/gateway/src/gateway_test.rs

@@ -18,7 +18,7 @@ use tokio::sync::mpsc::channel;
 use tokio::task;
 
 use crate::config::{StatefulTransactionValidatorConfig, StatelessTransactionValidatorConfig};
-use crate::gateway::{add_tx, compile_contract_class, AppState, SharedMempoolClient};
+use crate::gateway::{add_tx, AppState, GatewayCompiler, SharedMempoolClient};
 use crate::state_reader_test_utils::{
     local_test_state_reader_factory, local_test_state_reader_factory_for_deploy_account,
     TestStateReaderFactory,
@@ -110,7 +110,11 @@ async fn to_bytes(res: Response) -> Bytes {
 
 fn calculate_hash(external_tx: &RPCTransaction) -> TransactionHash {
     let optional_class_info = match &external_tx {
-        RPCTransaction::Declare(declare_tx) => Some(compile_contract_class(declare_tx).unwrap()),
+        RPCTransaction::Declare(declare_tx) => Some(
+            GatewayCompiler { config: Default::default() }
+                .compile_contract_class(declare_tx)
+                .unwrap(),
+        ),
         _ => None,
     };
 

crates/gateway/src/stateful_transaction_validator_test.rs

@@ -18,7 +18,7 @@ use starknet_api::rpc_transaction::RPCTransaction;
 use starknet_api::transaction::TransactionHash;
 use starknet_types_core::felt::Felt;
 
-use crate::compilation::compile_contract_class;
+use crate::compilation::GatewayCompiler;
 use crate::config::StatefulTransactionValidatorConfig;
 use crate::errors::{StatefulTransactionValidatorError, StatefulTransactionValidatorResult};
 use crate::state_reader_test_utils::{
@@ -95,7 +95,10 @@ fn test_stateful_tx_validator(
     stateful_validator: StatefulTransactionValidator,
 ) {
     let optional_class_info = match &external_tx {
-        RPCTransaction::Declare(declare_tx) => Some(compile_contract_class(declare_tx).unwrap()),
+        RPCTransaction::Declare(declare_tx) => {
+            let gateway_compiler = GatewayCompiler { config: Default::default() };
+            Some(gateway_compiler.compile_contract_class(declare_tx).unwrap())
+        }
         _ => None,
     };
 

crates/tests-integration/src/integration_test_utils.rs

@@ -28,8 +28,14 @@ async fn create_gateway_config() -> GatewayConfig {
     let socket = get_available_socket().await;
     let network_config = GatewayNetworkConfig { ip: socket.ip(), port: socket.port() };
     let stateful_tx_validator_config = StatefulTransactionValidatorConfig::create_for_testing();
+    let gateway_compiler_config = Default::default();
 
-    GatewayConfig { network_config, stateless_tx_validator_config, stateful_tx_validator_config }
+    GatewayConfig {
+        network_config,
+        stateless_tx_validator_config,
+        stateful_tx_validator_config,
+        compiler_config: gateway_compiler_config,
+    }
 }
 
 pub async fn create_config(rpc_server_addr: SocketAddr) -> MempoolNodeConfig {