integration: cache contract blob artifacts after compilation

Signed-off-by: xermicus <cyrill@parity.io>

Cargo.lock

@@ -1734,6 +1734,7 @@ dependencies = [
  "env_logger",
  "hex",
  "log",
+ "once_cell",
  "polkavm",
  "rayon",
  "revive-common",

crates/integration/Cargo.toml

@@ -12,6 +12,7 @@ alloy-sol-types = { workspace = true }
 hex = { workspace = true }
 env_logger = { workspace = true }
 log = { workspace = true }
+once_cell = { workspace = true }
 
 revive-solidity = { path = "../solidity" }
 revive-differential = { path = "../differential" }

crates/integration/src/lib.rs

@@ -4,12 +4,27 @@ use mock_runtime::{CallOutput, State};
 
 use crate::mock_runtime::{Event, ReturnFlags};
 
+use once_cell::sync::Lazy;
+use std::{collections::HashMap, sync::Mutex};
+
 pub mod cases;
 pub mod mock_runtime;
 
 #[cfg(test)]
 mod tests;
 
+pub(crate) static PVM_BLOB_CACHE: Lazy<Mutex<HashMap<CompiledBlobId, Vec<u8>>>> =
+    Lazy::new(Default::default);
+pub(crate) static EVM_BLOB_CACHE: Lazy<Mutex<HashMap<CompiledBlobId, Vec<u8>>>> =
+    Lazy::new(Default::default);
+
+#[derive(Hash, PartialEq, Eq)]
+struct CompiledBlobId {
+    contract_name: String,
+    solc_optimizer_enabled: bool,
+    pipeline: revive_solidity::SolcPipeline,
+}
+
 /// Compile the blob of `contract_name` found in given `source_code`.
 /// The `solc` optimizer will be enabled
 pub fn compile_blob(contract_name: &str, source_code: &str) -> Vec<u8> {
@@ -24,14 +39,25 @@ pub fn compile_blob(contract_name: &str, source_code: &str) -> Vec<u8> {
 /// Compile the EVM bin-runtime of `contract_name` found in given `source_code`.
 /// The `solc` optimizer will be enabled
 pub fn compile_evm_bin_runtime(contract_name: &str, source_code: &str) -> Vec<u8> {
-    let file_name = "contract.sol";
+    let pipeline = revive_solidity::SolcPipeline::Yul;
+    let solc_optimizer_enabled = true;
+    let id = CompiledBlobId {
+        contract_name: contract_name.to_owned(),
+        pipeline,
+        solc_optimizer_enabled,
+    };
 
+    if let Some(blob) = EVM_BLOB_CACHE.lock().unwrap().get(&id) {
+        return blob.clone();
+    }
+
+    let file_name = "contract.sol";
     let contracts = revive_solidity::test_utils::build_solidity_with_options_evm(
         [(file_name.into(), source_code.into())].into(),
         Default::default(),
         None,
-        revive_solidity::SolcPipeline::Yul,
+        pipeline,
-        true,
+        solc_optimizer_enabled,
     )
     .expect("source should compile");
     let bin_runtime = &contracts
@@ -39,7 +65,11 @@ pub fn compile_evm_bin_runtime(contract_name: &str, source_code: &str) -> Vec<u8
         .unwrap_or_else(|| panic!("contract '{}' didn't produce bin-runtime", contract_name))
         .object;
 
-    hex::decode(bin_runtime).expect("bin-runtime shold be hex encoded")
+    let blob = hex::decode(bin_runtime).expect("bin-runtime shold be hex encoded");
+
+    EVM_BLOB_CACHE.lock().unwrap().insert(id, blob.clone());
+
+    blob
 }
 
 /// Compile the blob of `contract_name` found in given `source_code`.
@@ -49,8 +79,17 @@ pub fn compile_blob_with_options(
     solc_optimizer_enabled: bool,
     pipeline: revive_solidity::SolcPipeline,
 ) -> Vec<u8> {
-    let file_name = "contract.sol";
+    let id = CompiledBlobId {
+        contract_name: contract_name.to_owned(),
+        solc_optimizer_enabled,
+        pipeline,
+    };
 
+    if let Some(blob) = PVM_BLOB_CACHE.lock().unwrap().get(&id) {
+        return blob.clone();
+    }
+
+    let file_name = "contract.sol";
     let contracts = revive_solidity::test_utils::build_solidity_with_options(
         [(file_name.into(), source_code.into())].into(),
         Default::default(),
@@ -72,8 +111,11 @@ pub fn compile_blob_with_options(
         .expect("source should produce assembly text")
         .object
         .as_str();
+    let blob = hex::decode(bytecode).expect("hex encoding should always be valid");
 
-    hex::decode(bytecode).expect("hex encoding should always be valid")
+    PVM_BLOB_CACHE.lock().unwrap().insert(id, blob.clone());
+
+    blob
 }
 
 pub fn assert_success(contract: &Contract, differential: bool) -> (State, CallOutput) {