chore: move compilation errors to dedicated file

crates/gateway/src/errors.rs

@@ -10,6 +10,7 @@ use starknet_api::block::{BlockNumber, GasPrice};
 use starknet_api::core::CompiledClassHash;
 use starknet_api::transaction::{Resource, ResourceBounds};
 use starknet_api::StarknetApiError;
+use starknet_sierra_compile::errors::CompilationUtilError;
 use thiserror::Error;
 use tokio::task::JoinError;
 
@@ -19,7 +20,7 @@ use crate::compiler_version::{VersionId, VersionIdError};
 #[derive(Debug, Error)]
 pub enum GatewayError {
     #[error(transparent)]
-    CompilationError(#[from] starknet_sierra_compile::compile::CompilationUtilError),
+    CompilationError(#[from] CompilationUtilError),
     #[error(
         "The supplied compiled class hash {supplied:?} does not match the hash of the Casm class \
          compiled from the supplied Sierra {hash_result:?}."

crates/gateway/src/gateway.rs

@@ -13,7 +13,8 @@ use starknet_api::rpc_transaction::{RPCDeclareTransaction, RPCTransaction};
 use starknet_api::transaction::TransactionHash;
 use starknet_mempool_types::communication::SharedMempoolClient;
 use starknet_mempool_types::mempool_types::{Account, MempoolInput};
-use starknet_sierra_compile::compile::{compile_sierra_to_casm, CompilationUtilError};
+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::{GatewayConfig, GatewayNetworkConfig};

crates/gateway/src/gateway_test.rs

@@ -16,7 +16,7 @@ use starknet_api::transaction::TransactionHash;
 use starknet_mempool::communication::create_mempool_server;
 use starknet_mempool::mempool::Mempool;
 use starknet_mempool_types::communication::{MempoolClientImpl, MempoolRequestAndResponseSender};
-use starknet_sierra_compile::compile::CompilationUtilError;
+use starknet_sierra_compile::errors::CompilationUtilError;
 use tokio::sync::mpsc::channel;
 use tokio::task;
 

crates/starknet_sierra_compile/src/compile.rs

@@ -1,9 +1,8 @@
-use cairo_lang_starknet_classes::allowed_libfuncs::{AllowedLibfuncsError, ListSelector};
-use cairo_lang_starknet_classes::casm_contract_class::{
-    CasmContractClass, StarknetSierraCompilationError,
-};
+use cairo_lang_starknet_classes::allowed_libfuncs::ListSelector;
+use cairo_lang_starknet_classes::casm_contract_class::CasmContractClass;
 use cairo_lang_starknet_classes::contract_class::ContractClass;
-use thiserror::Error;
+
+use crate::errors::CompilationUtilError;
 
 #[cfg(test)]
 #[path = "compile_test.rs"]
@@ -14,16 +13,6 @@ pub struct SierraToCasmCompilationArgs {
     max_bytecode_size: usize,
 }
 
-#[derive(Debug, Error)]
-pub enum CompilationUtilError {
-    #[error(transparent)]
-    AllowedLibfuncsError(#[from] AllowedLibfuncsError),
-    #[error(transparent)]
-    StarknetSierraCompilationError(#[from] StarknetSierraCompilationError),
-    #[error("Compilation panicked")]
-    CompilationPanic,
-}
-
 /// This function may panic.
 pub fn compile_sierra_to_casm(
     contract_class: ContractClass,

crates/starknet_sierra_compile/src/errors.rs

@@ -0,0 +1,13 @@
+use cairo_lang_starknet_classes::allowed_libfuncs::AllowedLibfuncsError;
+use cairo_lang_starknet_classes::casm_contract_class::StarknetSierraCompilationError;
+use thiserror::Error;
+
+#[derive(Debug, Error)]
+pub enum CompilationUtilError {
+    #[error(transparent)]
+    AllowedLibfuncsError(#[from] AllowedLibfuncsError),
+    #[error(transparent)]
+    StarknetSierraCompilationError(#[from] StarknetSierraCompilationError),
+    #[error("Compilation panicked")]
+    CompilationPanic,
+}

crates/starknet_sierra_compile/src/lib.rs

@@ -1,6 +1,7 @@
 //! A lib for compiling Sierra into Casm.
 
 pub mod compile;
+pub mod errors;
 pub mod utils;
 
 #[cfg(any(feature = "testing", test))]