Format comments

* Add an EVM version filter

* Update naming

.github/workflows/test.yml

@@ -99,9 +99,12 @@ jobs:
       - name: Install Geth on Ubuntu
         if: matrix.os == 'ubuntu-24.04'
         run: |
+          sudo add-apt-repository -y ppa:ethereum/ethereum
           sudo apt-get update
           sudo apt-get install -y protobuf-compiler
 
+          sudo apt-get install -y solc
+
           # We were facing some issues in CI with the 1.16.* versions of geth, and specifically on
           # Ubuntu. Eventually, we found out that the last version of geth that worked in our CI was
           # version 1.15.11. Thus, this is the version that we want to use in CI. The PPA sadly does
@@ -122,12 +125,22 @@ jobs:
           wget -qO- "$URL" | sudo tar xz -C /usr/local/bin --strip-components=1
           geth --version
 
+          curl -sL https://github.com/paritytech/revive/releases/download/v0.3.0/resolc-x86_64-unknown-linux-musl -o resolc
+          chmod +x resolc
+          sudo mv resolc /usr/local/bin
+
       - name: Install Geth on macOS
         if: matrix.os == 'macos-14'
         run: |
           brew tap ethereum/ethereum
           brew install ethereum protobuf
 
+          brew install solidity
+
+          curl -sL https://github.com/paritytech/revive/releases/download/v0.3.0/resolc-universal-apple-darwin -o resolc
+          chmod +x resolc
+          sudo mv resolc /usr/local/bin
+
       - name: Machete
         uses: bnjbvr/cargo-machete@v0.7.1
 
@@ -143,5 +156,8 @@ jobs:
       - name: Check eth-rpc version
         run: eth-rpc --version
 
+      - name: Check resolc version
+        run: resolc --version
+
       - name: Test cargo workspace
         run: make test

Cargo.lock

@@ -339,6 +339,7 @@ dependencies = [
  "const-hex",
  "derive_more 2.0.1",
  "foldhash",
+ "getrandom 0.3.3",
  "hashbrown 0.15.3",
  "indexmap 2.10.0",
  "itoa",
@@ -2227,6 +2228,66 @@ dependencies = [
  "percent-encoding",
 ]
 
+[[package]]
+name = "foundry-compilers-artifacts"
+version = "0.18.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c2676d70082ed23680fe2d08c0b750d5f7f2438c6d946f1cb140a76c5e5e0392"
+dependencies = [
+ "foundry-compilers-artifacts-solc",
+ "foundry-compilers-artifacts-vyper",
+]
+
+[[package]]
+name = "foundry-compilers-artifacts-solc"
+version = "0.18.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a3ada94dc5946334bb08df574855ba345ab03ba8c6f233560c72c8d61fa9db80"
+dependencies = [
+ "alloy-json-abi",
+ "alloy-primitives",
+ "foundry-compilers-core",
+ "path-slash",
+ "regex",
+ "semver 1.0.26",
+ "serde",
+ "serde_json",
+ "thiserror 2.0.12",
+ "tracing",
+ "yansi",
+]
+
+[[package]]
+name = "foundry-compilers-artifacts-vyper"
+version = "0.18.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "372052af72652e375a6e7eed22179bd8935114e25e1c5a8cca7f00e8f20bd94c"
+dependencies = [
+ "alloy-json-abi",
+ "alloy-primitives",
+ "foundry-compilers-artifacts-solc",
+ "foundry-compilers-core",
+ "path-slash",
+ "semver 1.0.26",
+ "serde",
+]
+
+[[package]]
+name = "foundry-compilers-core"
+version = "0.18.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "bf0962c46855979300f6526ed57f987ccf6a025c2b92ce574b281d9cb2ef666b"
+dependencies = [
+ "alloy-primitives",
+ "cfg-if",
+ "dunce",
+ "path-slash",
+ "semver 1.0.26",
+ "serde",
+ "serde_json",
+ "thiserror 2.0.12",
+]
+
 [[package]]
 name = "fs-err"
 version = "2.11.0"
@@ -2652,7 +2713,7 @@ dependencies = [
  "libc",
  "percent-encoding",
  "pin-project-lite",
- "socket2",
+ "socket2 0.5.10",
  "system-configuration",
  "tokio",
  "tower-service",
@@ -2892,6 +2953,17 @@ dependencies = [
  "windows-sys 0.52.0",
 ]
 
+[[package]]
+name = "io-uring"
+version = "0.7.9"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d93587f37623a1a17d94ef2bc9ada592f5465fe7732084ab7beefabe5c77c0c4"
+dependencies = [
+ "bitflags 2.9.1",
+ "cfg-if",
+ "libc",
+]
+
 [[package]]
 name = "ipnet"
 version = "2.11.0"
@@ -3456,6 +3528,12 @@ version = "1.0.15"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "57c0d7b74b563b49d38dae00a0c37d4d6de9b432382b2892f0574ddcae73fd0a"
 
+[[package]]
+name = "path-slash"
+version = "0.2.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1e91099d4268b0e11973f036e885d652fb0b21fedcf69738c627f94db6a44f42"
+
 [[package]]
 name = "pbkdf2"
 version = "0.12.2"
@@ -3902,9 +3980,7 @@ dependencies = [
  "base64",
  "bytes",
  "encoding_rs",
- "futures-channel",
  "futures-core",
- "futures-util",
  "h2",
  "http",
  "http-body",
@@ -3953,24 +4029,27 @@ name = "revive-dt-common"
 version = "0.1.0"
 dependencies = [
  "anyhow",
- "futures",
+ "semver 1.0.26",
- "once_cell",
  "tokio",
- "tracing",
 ]
 
 [[package]]
 name = "revive-dt-compiler"
 version = "0.1.0"
 dependencies = [
+ "alloy",
  "alloy-primitives",
  "anyhow",
+ "foundry-compilers-artifacts",
  "revive-common",
+ "revive-dt-common",
  "revive-dt-config",
  "revive-dt-solc-binaries",
  "revive-solc-json-interface",
  "semver 1.0.26",
+ "serde",
  "serde_json",
+ "tokio",
  "tracing",
 ]
 
@@ -3992,8 +4071,8 @@ dependencies = [
  "alloy",
  "anyhow",
  "clap",
+ "futures",
  "indexmap 2.10.0",
- "rayon",
  "revive-dt-common",
  "revive-dt-compiler",
  "revive-dt-config",
@@ -4001,9 +4080,10 @@ dependencies = [
  "revive-dt-node",
  "revive-dt-node-interaction",
  "revive-dt-report",
- "revive-solc-json-interface",
+ "semver 1.0.26",
  "serde_json",
  "temp-dir",
+ "tokio",
  "tracing",
  "tracing-subscriber",
 ]
@@ -4016,10 +4096,12 @@ dependencies = [
  "alloy-primitives",
  "alloy-sol-types",
  "anyhow",
+ "revive-common",
  "revive-dt-common",
  "semver 1.0.26",
  "serde",
  "serde_json",
+ "tokio",
  "tracing",
 ]
 
@@ -4029,6 +4111,7 @@ version = "0.1.0"
 dependencies = [
  "alloy",
  "anyhow",
+ "revive-common",
  "revive-dt-common",
  "revive-dt-config",
  "revive-dt-format",
@@ -4055,9 +4138,9 @@ name = "revive-dt-report"
 version = "0.1.0"
 dependencies = [
  "anyhow",
+ "revive-dt-compiler",
  "revive-dt-config",
  "revive-dt-format",
- "revive-solc-json-interface",
  "serde",
  "serde_json",
  "tracing",
@@ -4070,9 +4153,11 @@ dependencies = [
  "anyhow",
  "hex",
  "reqwest",
+ "revive-dt-common",
  "semver 1.0.26",
  "serde",
  "sha2 0.10.9",
+ "tokio",
  "tracing",
 ]
 
@@ -4167,6 +4252,9 @@ name = "rustc-hash"
 version = "2.1.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "357703d41365b4b27c590e3ed91eabb1b663f07c4c084095e60cbed4362dff0d"
+dependencies = [
+ "rand 0.8.5",
+]
 
 [[package]]
 name = "rustc-hex"
@@ -4626,6 +4714,15 @@ version = "1.3.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "0fda2ff0d084019ba4d7c6f371c95d8fd75ce3524c3cb8fb653a3023f6323e64"
 
+[[package]]
+name = "signal-hook-registry"
+version = "1.4.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "9203b8055f63a2a00e2f593bb0510367fe707d7ff1e5c872de2f537b339e5410"
+dependencies = [
+ "libc",
+]
+
 [[package]]
 name = "signature"
 version = "2.2.0"
@@ -4670,6 +4767,16 @@ dependencies = [
  "windows-sys 0.52.0",
 ]
 
+[[package]]
+name = "socket2"
+version = "0.6.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "233504af464074f9d066d7b5416c5f9b894a5862a6506e306f7b816cdd6f1807"
+dependencies = [
+ "libc",
+ "windows-sys 0.59.0",
+]
+
 [[package]]
 name = "sp-application-crypto"
 version = "40.1.0"
@@ -5329,18 +5436,21 @@ checksum = "1f3ccbac311fea05f86f61904b462b55fb3df8837a366dfc601a0161d0532f20"
 
 [[package]]
 name = "tokio"
-version = "1.45.1"
+version = "1.47.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "75ef51a33ef1da925cea3e4eb122833cb377c61439ca401b770f54902b806779"
+checksum = "43864ed400b6043a4757a25c7a64a8efde741aed79a056a2fb348a406701bb35"
 dependencies = [
  "backtrace",
  "bytes",
+ "io-uring",
  "libc",
  "mio",
  "pin-project-lite",
- "socket2",
+ "signal-hook-registry",
+ "slab",
+ "socket2 0.6.0",
  "tokio-macros",
- "windows-sys 0.52.0",
+ "windows-sys 0.59.0",
 ]
 
 [[package]]
@@ -6217,6 +6327,12 @@ dependencies = [
  "tap",
 ]
 
+[[package]]
+name = "yansi"
+version = "1.0.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "cfe53a6657fd280eaa890a3bc59152892ffa3e30101319d168b781ed6529b049"
+
 [[package]]
 name = "yoke"
 version = "0.8.0"

Cargo.toml

@@ -8,7 +8,7 @@ authors = ["Parity Technologies <admin@parity.io>"]
 license = "MIT/Apache-2.0"
 edition = "2024"
 repository = "https://github.com/paritytech/revive-differential-testing.git"
-rust-version = "1.85.0"
+rust-version = "1.87.0"
 
 [workspace.dependencies]
 revive-dt-common = { version = "0.1.0", path = "crates/common" }
@@ -26,24 +26,27 @@ alloy-primitives = "1.2.1"
 alloy-sol-types = "1.2.1"
 anyhow = "1.0"
 clap = { version = "4", features = ["derive"] }
+foundry-compilers-artifacts = { version = "0.18.0" }
 futures = { version = "0.3.31" }
 hex = "0.4.3"
-reqwest = { version = "0.12.15", features = ["blocking", "json"] }
+reqwest = { version = "0.12.15", features = ["json"] }
 once_cell = "1.21"
-rayon = { version = "1.10" }
 semver = { version = "1.0", features = ["serde"] }
 serde = { version = "1.0", default-features = false, features = ["derive"] }
 serde_json = { version = "1.0", default-features = false, features = [
     "arbitrary_precision",
     "std",
+    "unbounded_depth",
 ] }
 sha2 = { version = "0.10.9" }
 sp-core = "36.1.0"
 sp-runtime = "41.1.0"
 temp-dir = { version = "0.1.16" }
 tempfile = "3.3"
-tokio = { version = "1", default-features = false, features = [
+tokio = { version = "1.47.0", default-features = false, features = [
     "rt-multi-thread",
+    "process",
+    "rt",
 ] }
 uuid = { version = "1.8", features = ["v4"] }
 tracing = "0.1.41"

assets/test_metadata.json

@@ -8,6 +8,18 @@
         {
             "name": "first",
             "inputs": [
+                {
+                    "address": "0xdeadbeef00000000000000000000000000000042",
+                    "expected_balance": "1233"
+                },
+                {
+                    "address": "0xdeadbeef00000000000000000000000000000042",
+                    "is_storage_empty": true
+                },
+                {
+                    "address": "0xdeadbeef00000000000000000000000000000042",
+                    "is_storage_empty": false
+                },
                 {
                     "instance": "WBTC_1",
                     "method": "#deployer",

crates/common/Cargo.toml

@@ -10,7 +10,5 @@ rust-version.workspace = true
 
 [dependencies]
 anyhow = { workspace = true }
-futures = { workspace = true }
+semver = { workspace = true }
-tracing = { workspace = true }
+tokio = { workspace = true, default-features = false, features = ["time"] }
-once_cell = { workspace = true }
-tokio = { workspace = true }

crates/common/src/concepts/blocking_executor.rs

@@ -1,225 +0,0 @@
-//! The alloy crate __requires__ a tokio runtime.
-//! We contain any async rust right here.
-
-use std::{any::Any, panic::AssertUnwindSafe, pin::Pin, thread};
-
-use futures::FutureExt;
-use once_cell::sync::Lazy;
-use tokio::{
-    runtime::Builder,
-    sync::{mpsc::UnboundedSender, oneshot},
-};
-use tracing::Instrument;
-
-/// A blocking async executor.
-///
-/// This struct exposes the abstraction of a blocking async executor. It is a global and static
-/// executor which means that it doesn't require for new instances of it to be created, it's a
-/// singleton and can be accessed by any thread that wants to perform some async computation on the
-/// blocking executor thread.
-///
-/// The API of the blocking executor is created in a way so that it's very natural, simple to use,
-/// and unbounded to specific tasks or return types. The following is an example of using this
-/// executor to drive an async computation:
-///
-/// ```rust
-/// use revive_dt_common::concepts::*;
-///
-/// fn blocking_function() {
-///     let result = BlockingExecutor::execute(async move {
-///         tokio::time::sleep(std::time::Duration::from_secs(1)).await;
-///         0xFFu8
-///     })
-///     .expect("Computation failed");
-///
-///     assert_eq!(result, 0xFF);
-/// }
-/// ```
-///
-/// Users get to pass in their async tasks without needing to worry about putting them in a [`Box`],
-/// [`Pin`], needing to perform down-casting, or the internal channel mechanism used by the runtime.
-/// To the user, it just looks like a function that converts some async code into sync code.
-///
-/// This struct also handled panics that occur in the passed futures and converts them into errors
-/// that can be handled by the user. This is done to allow the executor to be robust.
-///
-/// Internally, the executor communicates with the tokio runtime thread through channels which carry
-/// the [`TaskMessage`] and the results of the execution.
-pub struct BlockingExecutor;
-
-impl BlockingExecutor {
-    pub fn execute<R>(future: impl Future<Output = R> + Send + 'static) -> Result<R, anyhow::Error>
-    where
-        R: Send + 'static,
-    {
-        // Note: The blocking executor is a singleton and therefore we store its state in a static
-        // so that it's assigned only once. Additionally, when we set the state of the executor we
-        // spawn the thread where the async runtime runs.
-        static STATE: Lazy<ExecutorState> = Lazy::new(|| {
-            tracing::trace!("Initializing the BlockingExecutor state");
-
-            // All communication with the tokio runtime thread happens over mspc channels where the
-            // producers here are the threads that want to run async tasks and the consumer here is
-            // the tokio runtime thread.
-            let (tx, mut rx) = tokio::sync::mpsc::unbounded_channel::<TaskMessage>();
-
-            thread::spawn(move || {
-                tracing::info!(
-                    thread_id = ?std::thread::current().id(),
-                    "Starting async runtime thread"
-                );
-
-                let runtime = Builder::new_current_thread()
-                    .enable_all()
-                    .build()
-                    .expect("Failed to create the async runtime");
-
-                runtime.block_on(async move {
-                    while let Some(TaskMessage {
-                        future: task,
-                        response_tx: response_channel,
-                    }) = rx.recv().await
-                    {
-                        tracing::trace!("Received a new future to execute");
-                        tokio::spawn(async move {
-                            // One of the things that the blocking executor does is that it allows
-                            // us to catch panics if they occur. By wrapping the given future in an
-                            // AssertUnwindSafe::catch_unwind we are able to catch all panic unwinds
-                            // in the given future and convert them into errors.
-                            let task = AssertUnwindSafe(task).catch_unwind();
-
-                            let result = task.await;
-                            let _ = response_channel.send(result);
-                        });
-                    }
-                })
-            });
-
-            ExecutorState { tx }
-        });
-
-        // We need to perform blocking synchronous communication between the current thread and the
-        // tokio runtime thread with the result of the async computation and the oneshot channels
-        // from tokio allows us to do that. The sender side of the channel will be given to the
-        // tokio runtime thread to send the result when the computation is completed and the receive
-        // side of the channel will be kept with this thread to await for the response of the async
-        // task to come back.
-        let (response_tx, response_rx) =
-            oneshot::channel::<Result<Box<dyn Any + Send>, Box<dyn Any + Send>>>();
-
-        // The tokio runtime thread expects a Future<Output = Box<dyn Any + Send>> + Send to be
-        // sent to it to execute. However, this function has a typed Future<Output = R> + Send and
-        // therefore we need to change the type of the future to fit what the runtime thread expects
-        // in the task message. In doing this conversion, we lose some of the type information since
-        // we're converting R => dyn Any. However, we will perform down-casting on the result to
-        // convert it back into R.
-        let future = Box::pin(
-            async move { Box::new(future.await) as Box<dyn Any + Send> }.in_current_span(),
-        );
-
-        let task = TaskMessage::new(future, response_tx);
-        if let Err(error) = STATE.tx.send(task) {
-            tracing::error!(?error, "Failed to send the task to the blocking executor");
-            anyhow::bail!("Failed to send the task to the blocking executor: {error:?}")
-        }
-
-        let result = match response_rx.blocking_recv() {
-            Ok(result) => result,
-            Err(error) => {
-                tracing::error!(
-                    ?error,
-                    "Failed to get the response from the blocking executor"
-                );
-                anyhow::bail!("Failed to get the response from the blocking executor: {error:?}")
-            }
-        };
-
-        let result = match result {
-            Ok(result) => result,
-            Err(error) => {
-                tracing::error!(?error, "An error occurred when running the async task");
-                anyhow::bail!("An error occurred when running the async task: {error:?}")
-            }
-        };
-
-        Ok(*result
-            .downcast::<R>()
-            .expect("An error occurred when downcasting into R. This is a bug"))
-    }
-}
-/// Represents the state of the async runtime. This runtime is designed to be a singleton runtime
-/// which means that in the current running program there's just a single thread that has an async
-/// runtime.
-struct ExecutorState {
-    /// The sending side of the task messages channel. This is used by all of the other threads to
-    /// communicate with the async runtime thread.
-    tx: UnboundedSender<TaskMessage>,
-}
-
-/// Represents a message that contains an asynchronous task that's to be executed by the runtime
-/// as well as a way for the runtime to report back on the result of the execution.
-struct TaskMessage {
-    /// The task that's being requested to run. This is a future that returns an object that does
-    /// implement [`Any`] and [`Send`] to allow it to be sent between the requesting thread and the
-    /// async thread.
-    future: Pin<Box<dyn Future<Output = Box<dyn Any + Send>> + Send>>,
-
-    /// A one shot sender channel where the sender of the task is expecting to hear back on the
-    /// result of the task.
-    response_tx: oneshot::Sender<Result<Box<dyn Any + Send>, Box<dyn Any + Send>>>,
-}
-
-impl TaskMessage {
-    pub fn new(
-        future: Pin<Box<dyn Future<Output = Box<dyn Any + Send>> + Send>>,
-        response_tx: oneshot::Sender<Result<Box<dyn Any + Send>, Box<dyn Any + Send>>>,
-    ) -> Self {
-        Self {
-            future,
-            response_tx,
-        }
-    }
-}
-
-#[cfg(test)]
-mod test {
-    use super::*;
-
-    #[test]
-    fn simple_future_works() {
-        // Act
-        let result = BlockingExecutor::execute(async move {
-            tokio::time::sleep(std::time::Duration::from_secs(1)).await;
-            0xFFu8
-        })
-        .unwrap();
-
-        // Assert
-        assert_eq!(result, 0xFFu8);
-    }
-
-    #[test]
-    #[allow(unreachable_code, clippy::unreachable)]
-    fn panics_in_futures_are_caught() {
-        // Act
-        let result = BlockingExecutor::execute(async move {
-            panic!(
-                "If this panic causes, well, a panic, then this is an issue. If it's caught then all good!"
-            );
-            0xFFu8
-        });
-
-        // Assert
-        assert!(result.is_err());
-
-        // Act
-        let result = BlockingExecutor::execute(async move {
-            tokio::time::sleep(std::time::Duration::from_secs(1)).await;
-            0xFFu8
-        })
-        .unwrap();
-
-        // Assert
-        assert_eq!(result, 0xFFu8)
-    }
-}

crates/common/src/concepts/mod.rs

@@ -1,3 +0,0 @@
-mod blocking_executor;
-
-pub use blocking_executor::*;

crates/common/src/fs/clear_dir.rs

@@ -0,0 +1,22 @@
+use std::{
+    fs::{read_dir, remove_dir_all, remove_file},
+    path::Path,
+};
+
+use anyhow::Result;
+
+/// This method clears the passed directory of all of the files and directories contained within
+/// without deleting the directory.
+pub fn clear_directory(path: impl AsRef<Path>) -> Result<()> {
+    for entry in read_dir(path.as_ref())? {
+        let entry = entry?;
+        let entry_path = entry.path();
+
+        if entry_path.is_file() {
+            remove_file(entry_path)?
+        } else {
+            remove_dir_all(entry_path)?
+        }
+    }
+    Ok(())
+}

crates/common/src/fs/mod.rs

@@ -0,0 +1,3 @@
+mod clear_dir;
+
+pub use clear_dir::*;

crates/common/src/futures/mod.rs

@@ -0,0 +1,3 @@
+mod poll;
+
+pub use poll::*;

crates/common/src/futures/poll.rs

@@ -0,0 +1,69 @@
+use std::ops::ControlFlow;
+use std::time::Duration;
+
+use anyhow::{Result, anyhow};
+
+const EXPONENTIAL_BACKOFF_MAX_WAIT_DURATION: Duration = Duration::from_secs(60);
+
+/// A function that polls for a fallible future for some period of time and errors if it fails to
+/// get a result after polling.
+///
+/// Given a future that returns a [`Result<ControlFlow<O, ()>>`], this function calls the future
+/// repeatedly (with some wait period) until the future returns a [`ControlFlow::Break`] or until it
+/// returns an [`Err`] in which case the function stops polling and returns the error.
+///
+/// If the future keeps returning [`ControlFlow::Continue`] and fails to return a [`Break`] within
+/// the permitted polling duration then this function returns an [`Err`]
+///
+/// [`Break`]: ControlFlow::Break
+/// [`Continue`]: ControlFlow::Continue
+pub async fn poll<F, O>(
+    polling_duration: Duration,
+    polling_wait_behavior: PollingWaitBehavior,
+    mut future: impl FnMut() -> F,
+) -> Result<O>
+where
+    F: Future<Output = Result<ControlFlow<O, ()>>>,
+{
+    let mut retries = 0;
+    let mut total_wait_duration = Duration::ZERO;
+    let max_allowed_wait_duration = polling_duration;
+
+    loop {
+        if total_wait_duration >= max_allowed_wait_duration {
+            break Err(anyhow!(
+                "Polling failed after {} retries and a total of {:?} of wait time",
+                retries,
+                total_wait_duration
+            ));
+        }
+
+        match future().await? {
+            ControlFlow::Continue(()) => {
+                let next_wait_duration = match polling_wait_behavior {
+                    PollingWaitBehavior::Constant(duration) => duration,
+                    PollingWaitBehavior::ExponentialBackoff => {
+                        Duration::from_secs(2u64.pow(retries))
+                            .min(EXPONENTIAL_BACKOFF_MAX_WAIT_DURATION)
+                    }
+                };
+                let next_wait_duration =
+                    next_wait_duration.min(max_allowed_wait_duration - total_wait_duration);
+                total_wait_duration += next_wait_duration;
+                retries += 1;
+
+                tokio::time::sleep(next_wait_duration).await;
+            }
+            ControlFlow::Break(output) => {
+                break Ok(output);
+            }
+        }
+    }
+}
+
+#[derive(Clone, Copy, PartialEq, Eq, PartialOrd, Ord, Hash, Default)]
+pub enum PollingWaitBehavior {
+    Constant(Duration),
+    #[default]
+    ExponentialBackoff,
+}

crates/common/src/iterators/files_with_extension_iterator.rs

@@ -1,4 +1,8 @@
-use std::{borrow::Cow, collections::HashSet, path::PathBuf};
+use std::{
+    borrow::Cow,
+    collections::HashSet,
+    path::{Path, PathBuf},
+};
 
 /// An iterator that finds files of a certain extension in the provided directory. You can think of
 /// this a glob pattern similar to: `${path}/**/*.md`
@@ -18,10 +22,10 @@ pub struct FilesWithExtensionIterator {
 }
 
 impl FilesWithExtensionIterator {
-    pub fn new(root_directory: PathBuf) -> Self {
+    pub fn new(root_directory: impl AsRef<Path>) -> Self {
         Self {
             allowed_extensions: Default::default(),
-            directories_to_search: vec![root_directory],
+            directories_to_search: vec![root_directory.as_ref().to_path_buf()],
             files_matching_allowed_extensions: Default::default(),
         }
     }

crates/common/src/lib.rs

@@ -1,6 +1,8 @@
 //! This crate provides common concepts, functionality, types, macros, and more that other crates in
 //! the workspace can benefit from.
 
-pub mod concepts;
+pub mod fs;
+pub mod futures;
 pub mod iterators;
 pub mod macros;
+pub mod types;

crates/common/src/types/mod.rs

@@ -0,0 +1,3 @@
+mod version_or_requirement;
+
+pub use version_or_requirement::*;

crates/common/src/types/version_or_requirement.rs

@@ -0,0 +1,41 @@
+use semver::{Version, VersionReq};
+
+#[derive(Clone, Debug)]
+pub enum VersionOrRequirement {
+    Version(Version),
+    Requirement(VersionReq),
+}
+
+impl From<Version> for VersionOrRequirement {
+    fn from(value: Version) -> Self {
+        Self::Version(value)
+    }
+}
+
+impl From<VersionReq> for VersionOrRequirement {
+    fn from(value: VersionReq) -> Self {
+        Self::Requirement(value)
+    }
+}
+
+impl TryFrom<VersionOrRequirement> for Version {
+    type Error = anyhow::Error;
+
+    fn try_from(value: VersionOrRequirement) -> Result<Self, Self::Error> {
+        let VersionOrRequirement::Version(version) = value else {
+            anyhow::bail!("Version or requirement was not a version");
+        };
+        Ok(version)
+    }
+}
+
+impl TryFrom<VersionOrRequirement> for VersionReq {
+    type Error = anyhow::Error;
+
+    fn try_from(value: VersionOrRequirement) -> Result<Self, Self::Error> {
+        let VersionOrRequirement::Requirement(requirement) = value else {
+            anyhow::bail!("Version or requirement was not a requirement");
+        };
+        Ok(requirement)
+    }
+}

crates/compiler/Cargo.toml

@@ -10,12 +10,17 @@ rust-version.workspace = true
 
 [dependencies]
 revive-solc-json-interface = { workspace = true }
+revive-dt-common = { workspace = true }
 revive-dt-config = { workspace = true }
 revive-dt-solc-binaries = { workspace = true }
 revive-common = { workspace = true }
 
+alloy = { workspace = true }
 alloy-primitives = { workspace = true }
 anyhow = { workspace = true }
+foundry-compilers-artifacts = { workspace = true }
 semver = { workspace = true }
+serde = { workspace = true }
 serde_json = { workspace = true }
 tracing = { workspace = true }
+tokio = { workspace = true }

crates/compiler/src/lib.rs

@@ -4,21 +4,20 @@
 //! - Polkadot revive Wasm compiler
 
 use std::{
+    collections::HashMap,
     fs::read_to_string,
     hash::Hash,
     path::{Path, PathBuf},
 };
 
+use alloy::json_abi::JsonAbi;
 use alloy_primitives::Address;
-use revive_dt_config::Arguments;
+use semver::Version;
+use serde::{Deserialize, Serialize};
 
 use revive_common::EVMVersion;
-use revive_solc_json_interface::{
+use revive_dt_common::types::VersionOrRequirement;
-    SolcStandardJsonInput, SolcStandardJsonInputLanguage, SolcStandardJsonInputSettings,
+use revive_dt_config::Arguments;
-    SolcStandardJsonInputSettingsOptimizer, SolcStandardJsonInputSettingsSelection,
-    SolcStandardJsonOutput,
-};
-use semver::Version;
 
 pub mod revive_js;
 pub mod revive_resolc;
@@ -32,63 +31,44 @@ pub trait SolidityCompiler {
     /// The low-level compiler interface.
     fn build(
         &self,
-        input: CompilerInput<Self::Options>,
+        input: CompilerInput,
-    ) -> anyhow::Result<CompilerOutput<Self::Options>>;
+        additional_options: Self::Options,
+    ) -> impl Future<Output = anyhow::Result<CompilerOutput>>;
 
     fn new(solc_executable: PathBuf) -> Self;
 
-    fn get_compiler_executable(config: &Arguments, version: Version) -> anyhow::Result<PathBuf>;
+    fn get_compiler_executable(
+        config: &Arguments,
+        version: impl Into<VersionOrRequirement>,
+    ) -> impl Future<Output = anyhow::Result<PathBuf>>;
+
+    fn version(&self) -> anyhow::Result<Version>;
 }
 
 /// The generic compilation input configuration.
-#[derive(Debug)]
+#[derive(Debug, Clone, Serialize, Deserialize)]
-pub struct CompilerInput<T: PartialEq + Eq + Hash> {
+pub struct CompilerInput {
-    pub extra_options: T,
+    pub enable_optimization: Option<bool>,
-    pub input: SolcStandardJsonInput,
+    pub via_ir: Option<bool>,
+    pub evm_version: Option<EVMVersion>,
     pub allow_paths: Vec<PathBuf>,
     pub base_path: Option<PathBuf>,
+    pub sources: HashMap<PathBuf, String>,
+    pub libraries: HashMap<PathBuf, HashMap<String, Address>>,
 }
 
 /// The generic compilation output configuration.
-#[derive(Debug)]
+#[derive(Debug, Clone, Default, Serialize, Deserialize)]
-pub struct CompilerOutput<T: PartialEq + Eq + Hash> {
+pub struct CompilerOutput {
-    /// The solc standard JSON input.
+    /// The compiled contracts. The bytecode of the contract is kept as a string incase linking is
-    pub input: CompilerInput<T>,
+    /// required and the compiled source has placeholders.
-    /// The produced solc standard JSON output.
+    pub contracts: HashMap<PathBuf, HashMap<String, (String, JsonAbi)>>,
-    pub output: SolcStandardJsonOutput,
-    /// The error message in case the compiler returns abnormally.
-    pub error: Option<String>,
 }
 
-impl<T> PartialEq for CompilerInput<T>
+/// A generic builder style interface for configuring the supported compiler options.
-where
-    T: PartialEq + Eq + Hash,
-{
-    fn eq(&self, other: &Self) -> bool {
-        let self_input = serde_json::to_vec(&self.input).unwrap_or_default();
-        let other_input = serde_json::to_vec(&self.input).unwrap_or_default();
-        self.extra_options.eq(&other.extra_options) && self_input == other_input
-    }
-}
-
-impl<T> Eq for CompilerInput<T> where T: PartialEq + Eq + Hash {}
-
-impl<T> Hash for CompilerInput<T>
-where
-    T: PartialEq + Eq + Hash,
-{
-    fn hash<H: std::hash::Hasher>(&self, state: &mut H) {
-        self.extra_options.hash(state);
-        state.write(&serde_json::to_vec(&self.input).unwrap_or_default());
-    }
-}
-
-/// A generic builder style interface for configuring all compiler options.
 pub struct Compiler<T: SolidityCompiler> {
-    input: SolcStandardJsonInput,
+    input: CompilerInput,
-    extra_options: T::Options,
+    additional_options: T::Options,
-    allow_paths: Vec<PathBuf>,
-    base_path: Option<PathBuf>,
 }
 
 impl Default for Compiler<solc::Solc> {
@@ -103,93 +83,80 @@ where
 {
     pub fn new() -> Self {
         Self {
-            input: SolcStandardJsonInput {
+            input: CompilerInput {
-                language: SolcStandardJsonInputLanguage::Solidity,
+                enable_optimization: Default::default(),
-                sources: Default::default(),
+                via_ir: Default::default(),
-                settings: SolcStandardJsonInputSettings::new(
+                evm_version: Default::default(),
-                    None,
-                    Default::default(),
-                    None,
-                    SolcStandardJsonInputSettingsSelection::new_required(),
-                    SolcStandardJsonInputSettingsOptimizer::new(
-                        false,
-                        None,
-                        &Version::new(0, 0, 0),
-                        false,
-                    ),
-                    None,
-                    None,
-                ),
-            },
-            extra_options: Default::default(),
                 allow_paths: Default::default(),
-            base_path: None,
+                base_path: Default::default(),
+                sources: Default::default(),
+                libraries: Default::default(),
+            },
+            additional_options: T::Options::default(),
         }
     }
 
-    pub fn solc_optimizer(mut self, enabled: bool) -> Self {
+    pub fn with_optimization(mut self, value: impl Into<Option<bool>>) -> Self {
-        self.input.settings.optimizer.enabled = enabled;
+        self.input.enable_optimization = value.into();
         self
     }
 
-    pub fn with_source(mut self, path: &Path) -> anyhow::Result<Self> {
+    pub fn with_via_ir(mut self, value: impl Into<Option<bool>>) -> Self {
+        self.input.via_ir = value.into();
+        self
+    }
+
+    pub fn with_evm_version(mut self, version: impl Into<Option<EVMVersion>>) -> Self {
+        self.input.evm_version = version.into();
+        self
+    }
+
+    pub fn with_allow_path(mut self, path: impl AsRef<Path>) -> Self {
+        self.input.allow_paths.push(path.as_ref().into());
+        self
+    }
+
+    pub fn with_base_path(mut self, path: impl Into<Option<PathBuf>>) -> Self {
+        self.input.base_path = path.into();
+        self
+    }
+
+    pub fn with_source(mut self, path: impl AsRef<Path>) -> anyhow::Result<Self> {
         self.input
             .sources
-            .insert(path.display().to_string(), read_to_string(path)?.into());
+            .insert(path.as_ref().to_path_buf(), read_to_string(path.as_ref())?);
         Ok(self)
     }
 
-    pub fn evm_version(mut self, evm_version: EVMVersion) -> Self {
-        self.input.settings.evm_version = Some(evm_version);
-        self
-    }
-
-    pub fn extra_options(mut self, extra_options: T::Options) -> Self {
-        self.extra_options = extra_options;
-        self
-    }
-
-    pub fn allow_path(mut self, path: PathBuf) -> Self {
-        self.allow_paths.push(path);
-        self
-    }
-
-    pub fn base_path(mut self, base_path: PathBuf) -> Self {
-        self.base_path = Some(base_path);
-        self
-    }
-
     pub fn with_library(
         mut self,
-        scope: impl AsRef<Path>,
+        path: impl AsRef<Path>,
-        library_ident: impl AsRef<str>,
+        name: impl AsRef<str>,
-        library_address: Address,
+        address: Address,
     ) -> Self {
         self.input
-            .settings
             .libraries
-            .get_or_insert_with(Default::default)
+            .entry(path.as_ref().to_path_buf())
-            .entry(scope.as_ref().display().to_string())
             .or_default()
-            .insert(
+            .insert(name.as_ref().into(), address);
-                library_ident.as_ref().to_owned(),
-                library_address.to_string(),
-            );
-
         self
     }
 
-    pub fn try_build(self, solc_path: PathBuf) -> anyhow::Result<CompilerOutput<T::Options>> {
+    pub fn with_additional_options(mut self, options: impl Into<T::Options>) -> Self {
-        T::new(solc_path).build(CompilerInput {
+        self.additional_options = options.into();
-            extra_options: self.extra_options,
+        self
-            input: self.input,
-            allow_paths: self.allow_paths,
-            base_path: self.base_path,
-        })
     }
 
-    /// Returns the compiler JSON input.
+    pub async fn try_build(
-    pub fn input(&self) -> SolcStandardJsonInput {
+        self,
+        compiler_path: impl AsRef<Path>,
+    ) -> anyhow::Result<CompilerOutput> {
+        T::new(compiler_path.as_ref().to_path_buf())
+            .build(self.input, self.additional_options)
+            .await
+    }
+
+    pub fn input(&self) -> CompilerInput {
         self.input.clone()
     }
 }

crates/compiler/src/revive_resolc.rs

@@ -6,9 +6,20 @@ use std::{
     process::{Command, Stdio},
 };
 
-use crate::{CompilerInput, CompilerOutput, SolidityCompiler};
+use revive_dt_common::types::VersionOrRequirement;
 use revive_dt_config::Arguments;
-use revive_solc_json_interface::SolcStandardJsonOutput;
+use revive_solc_json_interface::{
+    SolcStandardJsonInput, SolcStandardJsonInputLanguage, SolcStandardJsonInputSettings,
+    SolcStandardJsonInputSettingsOptimizer, SolcStandardJsonInputSettingsSelection,
+    SolcStandardJsonOutput,
+};
+
+use crate::{CompilerInput, CompilerOutput, SolidityCompiler};
+
+use alloy::json_abi::JsonAbi;
+use anyhow::Context;
+use semver::Version;
+use tokio::{io::AsyncWriteExt, process::Command as AsyncCommand};
 
 // TODO: I believe that we need to also pass the solc compiler to resolc so that resolc uses the
 // specified solc compiler. I believe that currently we completely ignore the specified solc binary
@@ -25,24 +36,71 @@ impl SolidityCompiler for Resolc {
     type Options = Vec<String>;
 
     #[tracing::instrument(level = "debug", ret)]
-    fn build(
+    async fn build(
         &self,
-        input: CompilerInput<Self::Options>,
+        CompilerInput {
-    ) -> anyhow::Result<CompilerOutput<Self::Options>> {
+            enable_optimization,
-        let mut command = Command::new(&self.resolc_path);
+            // Ignored and not honored since this is required for the resolc compilation.
+            via_ir: _via_ir,
+            evm_version,
+            allow_paths,
+            base_path,
+            sources,
+            libraries,
+        }: CompilerInput,
+        additional_options: Self::Options,
+    ) -> anyhow::Result<CompilerOutput> {
+        let input = SolcStandardJsonInput {
+            language: SolcStandardJsonInputLanguage::Solidity,
+            sources: sources
+                .into_iter()
+                .map(|(path, source)| (path.display().to_string(), source.into()))
+                .collect(),
+            settings: SolcStandardJsonInputSettings {
+                evm_version,
+                libraries: Some(
+                    libraries
+                        .into_iter()
+                        .map(|(source_code, libraries_map)| {
+                            (
+                                source_code.display().to_string(),
+                                libraries_map
+                                    .into_iter()
+                                    .map(|(library_ident, library_address)| {
+                                        (library_ident, library_address.to_string())
+                                    })
+                                    .collect(),
+                            )
+                        })
+                        .collect(),
+                ),
+                remappings: None,
+                output_selection: Some(SolcStandardJsonInputSettingsSelection::new_required()),
+                via_ir: Some(true),
+                optimizer: SolcStandardJsonInputSettingsOptimizer::new(
+                    enable_optimization.unwrap_or(false),
+                    None,
+                    &Version::new(0, 0, 0),
+                    false,
+                ),
+                metadata: None,
+                polkavm: None,
+            },
+        };
+
+        let mut command = AsyncCommand::new(&self.resolc_path);
         command
             .stdin(Stdio::piped())
             .stdout(Stdio::piped())
             .stderr(Stdio::piped())
             .arg("--standard-json");
 
-        if let Some(ref base_path) = input.base_path {
+        if let Some(ref base_path) = base_path {
             command.arg("--base-path").arg(base_path);
         }
-        if !input.allow_paths.is_empty() {
+        if !allow_paths.is_empty() {
             command.arg("--allow-paths").arg(
-                input
+                allow_paths
-                    .allow_paths
                     .iter()
                     .map(|path| path.display().to_string())
                     .collect::<Vec<_>>()
@@ -52,102 +110,96 @@ impl SolidityCompiler for Resolc {
         let mut child = command.spawn()?;
 
         let stdin_pipe = child.stdin.as_mut().expect("stdin must be piped");
-        serde_json::to_writer(stdin_pipe, &input.input)?;
+        let serialized_input = serde_json::to_vec(&input)?;
+        stdin_pipe.write_all(&serialized_input).await?;
 
-        let json_in = serde_json::to_string_pretty(&input.input)?;
+        let output = child.wait_with_output().await?;
-
-        let output = child.wait_with_output()?;
         let stdout = output.stdout;
         let stderr = output.stderr;
 
         if !output.status.success() {
+            let json_in = serde_json::to_string_pretty(&input)?;
             let message = String::from_utf8_lossy(&stderr);
             tracing::error!(
-                "resolc failed exit={} stderr={} JSON-in={} ",
+                status = %output.status,
-                output.status,
+                message = %message,
-                &message,
+                json_input = json_in,
-                json_in,
+                "Compilation using resolc failed"
             );
-            return Ok(CompilerOutput {
+            anyhow::bail!("Compilation failed with an error: {message}");
-                input,
-                output: Default::default(),
-                error: Some(message.into()),
-            });
         }
 
-        let mut parsed =
+        let parsed = serde_json::from_slice::<SolcStandardJsonOutput>(&stdout).map_err(|e| {
-            serde_json::from_slice::<SolcStandardJsonOutput>(&stdout).map_err(|e| {
             anyhow::anyhow!(
                 "failed to parse resolc JSON output: {e}\nstderr: {}",
                 String::from_utf8_lossy(&stderr)
             )
         })?;
 
-        // Detecting if the compiler output contained errors and reporting them through logs and
-        // errors instead of returning the compiler output that might contain errors.
-        for error in parsed.errors.iter().flatten() {
-            if error.severity == "error" {
-                tracing::error!(?error, ?input, "Encountered an error in the compilation");
-                anyhow::bail!("Encountered an error in the compilation: {error}")
-            }
-        }
-
-        // We need to do some post processing on the output to make it in the same format that solc
-        // outputs. More specifically, for each contract, the `.metadata` field should be replaced
-        // with the `.metadata.solc_metadata` field which contains the ABI and other information
-        // about the compiled contracts. We do this because we do not want any downstream logic to
-        // need to differentiate between which compiler is being used when extracting the ABI of the
-        // contracts.
-        if let Some(ref mut contracts) = parsed.contracts {
-            for (contract_path, contracts_map) in contracts.iter_mut() {
-                for (contract_name, contract_info) in contracts_map.iter_mut() {
-                    let Some(metadata) = contract_info.metadata.take() else {
-                        continue;
-                    };
-
-                    // Get the `solc_metadata` in the metadata of the contract.
-                    let Some(solc_metadata) = metadata
-                        .get("solc_metadata")
-                        .and_then(|metadata| metadata.as_str())
-                    else {
-                        tracing::error!(
-                            contract_path,
-                            contract_name,
-                            metadata = serde_json::to_string(&metadata).unwrap(),
-                            "Encountered a contract compiled with resolc that has no solc_metadata"
-                        );
-                        anyhow::bail!(
-                            "Contract {} compiled with resolc that has no solc_metadata",
-                            contract_name
-                        );
-                    };
-
-                    // Replace the original metadata with the new solc_metadata.
-                    contract_info.metadata =
-                        Some(serde_json::Value::String(solc_metadata.to_string()));
-                }
-            }
-        }
-
         tracing::debug!(
             output = %serde_json::to_string(&parsed).unwrap(),
             "Compiled successfully"
         );
 
-        Ok(CompilerOutput {
+        // Detecting if the compiler output contained errors and reporting them through logs and
-            input,
+        // errors instead of returning the compiler output that might contain errors.
-            output: parsed,
+        for error in parsed.errors.iter().flatten() {
-            error: None,
+            if error.severity == "error" {
+                tracing::error!(
+                    ?error,
+                    ?input,
+                    output = %serde_json::to_string(&parsed).unwrap(),
+                    "Encountered an error in the compilation"
+                );
+                anyhow::bail!("Encountered an error in the compilation: {error}")
+            }
+        }
+
+        let Some(contracts) = parsed.contracts else {
+            anyhow::bail!("Unexpected error - resolc output doesn't have a contracts section");
+        };
+
+        let mut compiler_output = CompilerOutput::default();
+        for (source_path, contracts) in contracts.into_iter() {
+            let source_path = PathBuf::from(source_path).canonicalize()?;
+
+            let map = compiler_output.contracts.entry(source_path).or_default();
+            for (contract_name, contract_information) in contracts.into_iter() {
+                let bytecode = contract_information
+                    .evm
+                    .and_then(|evm| evm.bytecode.clone())
+                    .context("Unexpected - Contract compiled with resolc has no bytecode")?;
+                let abi = contract_information
+                    .metadata
+                    .as_ref()
+                    .and_then(|metadata| metadata.as_object())
+                    .and_then(|metadata| metadata.get("solc_metadata"))
+                    .and_then(|solc_metadata| solc_metadata.as_str())
+                    .and_then(|metadata| serde_json::from_str::<serde_json::Value>(metadata).ok())
+                    .and_then(|metadata| {
+                        metadata.get("output").and_then(|output| {
+                            output
+                                .get("abi")
+                                .and_then(|abi| serde_json::from_value::<JsonAbi>(abi.clone()).ok())
                         })
+                    })
+                    .context(
+                        "Unexpected - Failed to get the ABI for a contract compiled with resolc",
+                    )?;
+                map.insert(contract_name, (bytecode.object, abi));
+            }
+        }
+
+        Ok(compiler_output)
     }
 
     fn new(resolc_path: PathBuf) -> Self {
         Resolc { resolc_path }
     }
 
-    fn get_compiler_executable(
+    async fn get_compiler_executable(
         config: &Arguments,
-        _version: semver::Version,
+        _version: impl Into<VersionOrRequirement>,
     ) -> anyhow::Result<PathBuf> {
         if !config.resolc.as_os_str().is_empty() {
             return Ok(config.resolc.clone());
@@ -155,4 +207,47 @@ impl SolidityCompiler for Resolc {
 
         Ok(PathBuf::from("resolc"))
     }
+
+    fn version(&self) -> anyhow::Result<semver::Version> {
+        // Logic for parsing the resolc version from the following string:
+        // Solidity frontend for the revive compiler version 0.3.0+commit.b238913.llvm-18.1.8
+
+        let output = Command::new(self.resolc_path.as_path())
+            .arg("--version")
+            .stdout(Stdio::piped())
+            .spawn()?
+            .wait_with_output()?
+            .stdout;
+        let output = String::from_utf8_lossy(&output);
+        let version_string = output
+            .split("version ")
+            .nth(1)
+            .context("Version parsing failed")?
+            .split("+")
+            .next()
+            .context("Version parsing failed")?;
+
+        Version::parse(version_string).map_err(Into::into)
+    }
+}
+
+#[cfg(test)]
+mod test {
+    use super::*;
+
+    #[tokio::test]
+    async fn compiler_version_can_be_obtained() {
+        // Arrange
+        let args = Arguments::default();
+        let path = Resolc::get_compiler_executable(&args, Version::new(0, 7, 6))
+            .await
+            .unwrap();
+        let compiler = Resolc::new(path);
+
+        // Act
+        let version = compiler.version();
+
+        // Assert
+        let _ = version.expect("Failed to get version");
+    }
 }

crates/compiler/src/solc.rs

@@ -6,10 +6,22 @@ use std::{
     process::{Command, Stdio},
 };
 
-use crate::{CompilerInput, CompilerOutput, SolidityCompiler};
+use revive_dt_common::types::VersionOrRequirement;
 use revive_dt_config::Arguments;
 use revive_dt_solc_binaries::download_solc;
-use revive_solc_json_interface::SolcStandardJsonOutput;
+
+use crate::{CompilerInput, CompilerOutput, SolidityCompiler};
+
+use anyhow::Context;
+use foundry_compilers_artifacts::{
+    output_selection::{
+        BytecodeOutputSelection, ContractOutputSelection, EvmOutputSelection, OutputSelection,
+    },
+    solc::CompilerOutput as SolcOutput,
+    solc::*,
+};
+use semver::Version;
+use tokio::{io::AsyncWriteExt, process::Command as AsyncCommand};
 
 #[derive(Debug)]
 pub struct Solc {
@@ -20,24 +32,78 @@ impl SolidityCompiler for Solc {
     type Options = ();
 
     #[tracing::instrument(level = "debug", ret)]
-    fn build(
+    async fn build(
         &self,
-        input: CompilerInput<Self::Options>,
+        CompilerInput {
-    ) -> anyhow::Result<CompilerOutput<Self::Options>> {
+            enable_optimization,
-        let mut command = Command::new(&self.solc_path);
+            via_ir,
+            evm_version,
+            allow_paths,
+            base_path,
+            sources,
+            libraries,
+        }: CompilerInput,
+        _: Self::Options,
+    ) -> anyhow::Result<CompilerOutput> {
+        let input = SolcInput {
+            language: SolcLanguage::Solidity,
+            sources: Sources(
+                sources
+                    .into_iter()
+                    .map(|(source_path, source_code)| (source_path, Source::new(source_code)))
+                    .collect(),
+            ),
+            settings: Settings {
+                optimizer: Optimizer {
+                    enabled: enable_optimization,
+                    details: Some(Default::default()),
+                    ..Default::default()
+                },
+                output_selection: OutputSelection::common_output_selection(
+                    [
+                        ContractOutputSelection::Abi,
+                        ContractOutputSelection::Evm(EvmOutputSelection::ByteCode(
+                            BytecodeOutputSelection::Object,
+                        )),
+                    ]
+                    .into_iter()
+                    .map(|item| item.to_string()),
+                ),
+                evm_version: evm_version.map(|version| version.to_string().parse().unwrap()),
+                via_ir,
+                libraries: Libraries {
+                    libs: libraries
+                        .into_iter()
+                        .map(|(file_path, libraries)| {
+                            (
+                                file_path,
+                                libraries
+                                    .into_iter()
+                                    .map(|(library_name, library_address)| {
+                                        (library_name, library_address.to_string())
+                                    })
+                                    .collect(),
+                            )
+                        })
+                        .collect(),
+                },
+                ..Default::default()
+            },
+        };
+
+        let mut command = AsyncCommand::new(&self.solc_path);
         command
             .stdin(Stdio::piped())
             .stdout(Stdio::piped())
             .stderr(Stdio::piped())
             .arg("--standard-json");
 
-        if let Some(ref base_path) = input.base_path {
+        if let Some(ref base_path) = base_path {
             command.arg("--base-path").arg(base_path);
         }
-        if !input.allow_paths.is_empty() {
+        if !allow_paths.is_empty() {
             command.arg("--allow-paths").arg(
-                input
+                allow_paths
-                    .allow_paths
                     .iter()
                     .map(|path| path.display().to_string())
                     .collect::<Vec<_>>()
@@ -47,21 +113,23 @@ impl SolidityCompiler for Solc {
         let mut child = command.spawn()?;
 
         let stdin = child.stdin.as_mut().expect("should be piped");
-        serde_json::to_writer(stdin, &input.input)?;
+        let serialized_input = serde_json::to_vec(&input)?;
-        let output = child.wait_with_output()?;
+        stdin.write_all(&serialized_input).await?;
+        let output = child.wait_with_output().await?;
 
         if !output.status.success() {
+            let json_in = serde_json::to_string_pretty(&input)?;
             let message = String::from_utf8_lossy(&output.stderr);
-            tracing::error!("solc failed exit={} stderr={}", output.status, &message);
+            tracing::error!(
-            return Ok(CompilerOutput {
+                status = %output.status,
-                input,
+                message = %message,
-                output: Default::default(),
+                json_input = json_in,
-                error: Some(message.into()),
+                "Compilation using solc failed"
-            });
+            );
+            anyhow::bail!("Compilation failed with an error: {message}");
         }
 
-        let parsed =
+        let parsed = serde_json::from_slice::<SolcOutput>(&output.stdout).map_err(|e| {
-            serde_json::from_slice::<SolcStandardJsonOutput>(&output.stdout).map_err(|e| {
             anyhow::anyhow!(
                 "failed to parse resolc JSON output: {e}\nstderr: {}",
                 String::from_utf8_lossy(&output.stdout)
@@ -70,8 +138,8 @@ impl SolidityCompiler for Solc {
 
         // Detecting if the compiler output contained errors and reporting them through logs and
         // errors instead of returning the compiler output that might contain errors.
-        for error in parsed.errors.iter().flatten() {
+        for error in parsed.errors.iter() {
-            if error.severity == "error" {
+            if error.severity == Severity::Error {
                 tracing::error!(?error, ?input, "Encountered an error in the compilation");
                 anyhow::bail!("Encountered an error in the compilation: {error}")
             }
@@ -82,22 +150,113 @@ impl SolidityCompiler for Solc {
             "Compiled successfully"
         );
 
-        Ok(CompilerOutput {
+        let mut compiler_output = CompilerOutput::default();
-            input,
+        for (contract_path, contracts) in parsed.contracts {
-            output: parsed,
+            let map = compiler_output
-            error: None,
+                .contracts
+                .entry(contract_path.canonicalize()?)
+                .or_default();
+            for (contract_name, contract_info) in contracts.into_iter() {
+                let source_code = contract_info
+                    .evm
+                    .and_then(|evm| evm.bytecode)
+                    .map(|bytecode| match bytecode.object {
+                        BytecodeObject::Bytecode(bytecode) => bytecode.to_string(),
+                        BytecodeObject::Unlinked(unlinked) => unlinked,
                     })
+                    .context("Unexpected - contract compiled with solc has no source code")?;
+                let abi = contract_info
+                    .abi
+                    .context("Unexpected - contract compiled with solc as no ABI")?;
+                map.insert(contract_name, (source_code, abi));
+            }
+        }
+
+        Ok(compiler_output)
     }
 
     fn new(solc_path: PathBuf) -> Self {
         Self { solc_path }
     }
 
-    fn get_compiler_executable(
+    async fn get_compiler_executable(
         config: &Arguments,
-        version: semver::Version,
+        version: impl Into<VersionOrRequirement>,
     ) -> anyhow::Result<PathBuf> {
-        let path = download_solc(config.directory(), version, config.wasm)?;
+        let path = download_solc(config.directory(), version, config.wasm).await?;
         Ok(path)
     }
+
+    fn version(&self) -> anyhow::Result<semver::Version> {
+        // The following is the parsing code for the version from the solc version strings which
+        // look like the following:
+        // ```
+        // solc, the solidity compiler commandline interface
+        // Version: 0.8.30+commit.73712a01.Darwin.appleclang
+        // ```
+
+        let child = Command::new(self.solc_path.as_path())
+            .arg("--version")
+            .stdout(Stdio::piped())
+            .spawn()?;
+        let output = child.wait_with_output()?;
+        let output = String::from_utf8_lossy(&output.stdout);
+        let version_line = output
+            .split("Version: ")
+            .nth(1)
+            .context("Version parsing failed")?;
+        let version_string = version_line
+            .split("+")
+            .next()
+            .context("Version parsing failed")?;
+
+        Version::parse(version_string).map_err(Into::into)
+    }
+}
+
+#[cfg(test)]
+mod test {
+    use super::*;
+
+    #[tokio::test]
+    async fn compiler_version_can_be_obtained() {
+        // Arrange
+        let args = Arguments::default();
+        println!("Getting compiler path");
+        let path = Solc::get_compiler_executable(&args, Version::new(0, 7, 6))
+            .await
+            .unwrap();
+        println!("Got compiler path");
+        let compiler = Solc::new(path);
+
+        // Act
+        let version = compiler.version();
+
+        // Assert
+        assert_eq!(
+            version.expect("Failed to get version"),
+            Version::new(0, 7, 6)
+        )
+    }
+
+    #[tokio::test]
+    async fn compiler_version_can_be_obtained1() {
+        // Arrange
+        let args = Arguments::default();
+        println!("Getting compiler path");
+        let path = Solc::get_compiler_executable(&args, Version::new(0, 4, 21))
+            .await
+            .unwrap();
+        println!("Got compiler path");
+        let compiler = Solc::new(path);
+
+        // Act
+        let version = compiler.version();
+
+        // Assert
+        assert_eq!(
+            version.expect("Failed to get version"),
+            Version::new(0, 4, 21)
+        )
+    }
 }

crates/compiler/tests/assets/array_one_element/callable.sol

@@ -0,0 +1,9 @@
+// SPDX-License-Identifier: MIT
+
+pragma solidity >=0.6.9;
+
+contract Callable {
+    function f(uint[1] memory p1) public pure returns(uint) {
+        return p1[0];
+    }
+}

crates/compiler/tests/assets/array_one_element/main.sol

@@ -0,0 +1,13 @@
+// SPDX-License-Identifier: MIT
+
+// Report https://linear.app/matterlabs/issue/CPR-269/call-with-calldata-variable-bug
+
+pragma solidity >=0.6.9;
+
+import "./callable.sol";
+
+contract Main {
+    function main(uint[1] calldata p1, Callable callable) public returns(uint) {
+        return callable.f(p1);
+    }
+}

crates/compiler/tests/assets/array_one_element/test.json

@@ -0,0 +1,21 @@
+{ "cases": [ {
+    "name": "first",
+    "inputs": [
+        {
+            "instance": "Main",
+            "method": "main",
+            "calldata": [
+                "1",
+                "Callable.address"
+            ]
+        }
+    ],
+    "expected": [
+        "1"
+    ]
+} ],
+    "contracts": {
+        "Main": "main.sol:Main",
+        "Callable": "callable.sol:Callable"
+    }
+}

crates/compiler/tests/lib.rs

@@ -0,0 +1,88 @@
+use std::path::PathBuf;
+
+use revive_dt_compiler::{Compiler, SolidityCompiler, revive_resolc::Resolc, solc::Solc};
+use revive_dt_config::Arguments;
+use semver::Version;
+
+#[tokio::test]
+async fn contracts_can_be_compiled_with_solc() {
+    // Arrange
+    let args = Arguments::default();
+    let compiler_path = Solc::get_compiler_executable(&args, Version::new(0, 8, 30))
+        .await
+        .unwrap();
+    println!("About to assert");
+
+    // Act
+    let output = Compiler::<Solc>::new()
+        .with_source("./tests/assets/array_one_element/callable.sol")
+        .unwrap()
+        .with_source("./tests/assets/array_one_element/main.sol")
+        .unwrap()
+        .try_build(compiler_path)
+        .await;
+
+    // Assert
+    let output = output.expect("Failed to compile");
+    assert_eq!(output.contracts.len(), 2);
+
+    let main_file_contracts = output
+        .contracts
+        .get(
+            &PathBuf::from("./tests/assets/array_one_element/main.sol")
+                .canonicalize()
+                .unwrap(),
+        )
+        .unwrap();
+    let callable_file_contracts = output
+        .contracts
+        .get(
+            &PathBuf::from("./tests/assets/array_one_element/callable.sol")
+                .canonicalize()
+                .unwrap(),
+        )
+        .unwrap();
+    assert!(main_file_contracts.contains_key("Main"));
+    assert!(callable_file_contracts.contains_key("Callable"));
+}
+
+#[tokio::test]
+async fn contracts_can_be_compiled_with_resolc() {
+    // Arrange
+    let args = Arguments::default();
+    let compiler_path = Resolc::get_compiler_executable(&args, Version::new(0, 8, 30))
+        .await
+        .unwrap();
+
+    // Act
+    let output = Compiler::<Resolc>::new()
+        .with_source("./tests/assets/array_one_element/callable.sol")
+        .unwrap()
+        .with_source("./tests/assets/array_one_element/main.sol")
+        .unwrap()
+        .try_build(compiler_path)
+        .await;
+
+    // Assert
+    let output = output.expect("Failed to compile");
+    assert_eq!(output.contracts.len(), 2);
+
+    let main_file_contracts = output
+        .contracts
+        .get(
+            &PathBuf::from("./tests/assets/array_one_element/main.sol")
+                .canonicalize()
+                .unwrap(),
+        )
+        .unwrap();
+    let callable_file_contracts = output
+        .contracts
+        .get(
+            &PathBuf::from("./tests/assets/array_one_element/callable.sol")
+                .canonicalize()
+                .unwrap(),
+        )
+        .unwrap();
+    assert!(main_file_contracts.contains_key("Main"));
+    assert!(callable_file_contracts.contains_key("Callable"));
+}

crates/config/src/lib.rs

@@ -3,6 +3,7 @@
 use std::{
     fmt::Display,
     path::{Path, PathBuf},
+    sync::LazyLock,
 };
 
 use alloy::{network::EthereumWallet, signers::local::PrivateKeySigner};
@@ -54,7 +55,7 @@ pub struct Arguments {
     pub geth: PathBuf,
 
     /// The maximum time in milliseconds to wait for geth to start.
-    #[arg(long = "geth-start-timeout", default_value = "2000")]
+    #[arg(long = "geth-start-timeout", default_value = "5000")]
     pub geth_start_timeout: u64,
 
     /// The test network chain ID.
@@ -76,7 +77,7 @@ pub struct Arguments {
     /// This argument controls which private keys the nodes should have access to and be added to
     /// its wallet signers. With a value of N, private keys (0, N] will be added to the signer set
     /// of the node.
-    #[arg(long = "private-keys-count", default_value_t = 30)]
+    #[arg(long = "private-keys-count", default_value_t = 100_000)]
     pub private_keys_to_add: usize,
 
     /// The differential testing leader node implementation.
@@ -91,9 +92,13 @@ pub struct Arguments {
     #[arg(long = "compile-only")]
     pub compile_only: Option<TestingPlatform>,
 
-    /// Determines the amount of tests that are executed in parallel.
+    /// Determines the amount of nodes that will be spawned for each chain.
-    #[arg(long = "workers", default_value = "12")]
+    #[arg(long, default_value = "1")]
-    pub workers: usize,
+    pub number_of_nodes: usize,
+
+    /// Determines the amount of threads that will will be used.
+    #[arg(long, default_value = "12")]
+    pub number_of_threads: usize,
 
     /// Extract problems back to the test corpus.
     #[arg(short, long = "extract-problems")]
@@ -144,14 +149,23 @@ impl Arguments {
 
 impl Default for Arguments {
     fn default() -> Self {
-        Arguments::parse_from(["retester"])
+        static TEMP_DIR: LazyLock<TempDir> = LazyLock::new(|| TempDir::new().unwrap());
+
+        let default = Arguments::parse_from(["retester"]);
+
+        Arguments {
+            temp_dir: Some(&TEMP_DIR),
+            ..default
+        }
     }
 }
 
 /// The Solidity compatible node implementation.
 ///
 /// This describes the solutions to be tested against on a high level.
-#[derive(Clone, Copy, Debug, Eq, Hash, PartialEq, ValueEnum, Serialize, Deserialize)]
+#[derive(
+    Clone, Copy, Debug, PartialEq, Eq, PartialOrd, Ord, Hash, ValueEnum, Serialize, Deserialize,
+)]
 #[clap(rename_all = "lower")]
 pub enum TestingPlatform {
     /// The go-ethereum reference full node EVM implementation.

crates/core/Cargo.toml

@@ -24,10 +24,11 @@ revive-dt-report = { workspace = true }
 alloy = { workspace = true }
 anyhow = { workspace = true }
 clap = { workspace = true }
+futures = { workspace = true }
 indexmap = { workspace = true }
+tokio = { workspace = true }
 tracing = { workspace = true }
 tracing-subscriber = { workspace = true }
-rayon = { workspace = true }
+semver = { workspace = true }
-revive-solc-json-interface = { workspace = true }
 serde_json = { workspace = true }
 temp-dir = { workspace = true }

crates/core/src/lib.rs

@@ -26,7 +26,7 @@ pub trait Platform {
 pub struct Geth;
 
 impl Platform for Geth {
-    type Blockchain = geth::Instance;
+    type Blockchain = geth::GethNode;
     type Compiler = solc::Solc;
 
     fn config_id() -> TestingPlatform {

crates/core/src/main.rs

@@ -1,37 +1,76 @@
-use std::{collections::HashMap, sync::LazyLock};
+use std::{
+    collections::HashMap,
+    path::Path,
+    sync::{Arc, LazyLock},
+    time::Instant,
+};
 
+use alloy::{
+    json_abi::JsonAbi,
+    network::{Ethereum, TransactionBuilder},
+    primitives::Address,
+    rpc::types::TransactionRequest,
+};
+use anyhow::Context;
 use clap::Parser;
-use rayon::{ThreadPoolBuilder, prelude::*};
+use futures::StreamExt;
+use revive_dt_common::iterators::FilesWithExtensionIterator;
+use revive_dt_node_interaction::EthereumNode;
+use semver::Version;
+use temp_dir::TempDir;
+use tokio::sync::{Mutex, RwLock};
+use tracing::{Instrument, Level};
+use tracing_subscriber::{EnvFilter, FmtSubscriber};
 
+use revive_dt_compiler::SolidityCompiler;
+use revive_dt_compiler::{Compiler, CompilerOutput};
 use revive_dt_config::*;
 use revive_dt_core::{
     Geth, Kitchensink, Platform,
-    driver::{Driver, State},
+    driver::{CaseDriver, CaseState},
+};
+use revive_dt_format::{
+    case::{Case, CaseIdx},
+    corpus::Corpus,
+    input::{Input, Step},
+    metadata::{ContractInstance, ContractPathAndIdent, Metadata, MetadataFile},
+    mode::SolcMode,
 };
-use revive_dt_format::{corpus::Corpus, metadata::MetadataFile};
 use revive_dt_node::pool::NodePool;
 use revive_dt_report::reporter::{Report, Span};
-use temp_dir::TempDir;
-use tracing::Level;
-use tracing_subscriber::{EnvFilter, FmtSubscriber};
 
 static TEMP_DIR: LazyLock<TempDir> = LazyLock::new(|| TempDir::new().unwrap());
 
+type CompilationCache<'a> = Arc<
+    RwLock<
+        HashMap<
+            (&'a Path, SolcMode, TestingPlatform),
+            Arc<Mutex<Option<Arc<(Version, CompilerOutput)>>>>,
+        >,
+    >,
+>;
+
 fn main() -> anyhow::Result<()> {
     let args = init_cli()?;
 
+    let body = async {
         for (corpus, tests) in collect_corpora(&args)? {
             let span = Span::new(corpus, args.clone())?;
-
             match &args.compile_only {
-            Some(platform) => compile_corpus(&args, &tests, platform, span),
+                Some(platform) => compile_corpus(&args, &tests, platform, span).await,
-            None => execute_corpus(&args, &tests, span)?,
+                None => execute_corpus(&args, &tests, span).await?,
             }
-
             Report::save()?;
         }
-
         Ok(())
+    };
+
+    tokio::runtime::Builder::new_multi_thread()
+        .worker_threads(args.number_of_threads)
+        .enable_all()
+        .build()
+        .expect("Failed building the Runtime")
+        .block_on(body)
 }
 
 fn init_cli() -> anyhow::Result<Arguments> {
@@ -62,10 +101,6 @@ fn init_cli() -> anyhow::Result<Arguments> {
     }
     tracing::info!("workdir: {}", args.directory().display());
 
-    ThreadPoolBuilder::new()
-        .num_threads(args.workers)
-        .build_global()?;
-
     Ok(args)
 }
 
@@ -83,7 +118,11 @@ fn collect_corpora(args: &Arguments) -> anyhow::Result<HashMap<Corpus, Vec<Metad
     Ok(corpora)
 }
 
-fn run_driver<L, F>(args: &Arguments, tests: &[MetadataFile], span: Span) -> anyhow::Result<()>
+async fn run_driver<L, F>(
+    args: &Arguments,
+    tests: &[MetadataFile],
+    span: Span,
+) -> anyhow::Result<()>
 where
     L: Platform,
     F: Platform,
@@ -93,61 +132,600 @@ where
     let leader_nodes = NodePool::<L::Blockchain>::new(args)?;
     let follower_nodes = NodePool::<F::Blockchain>::new(args)?;
 
-    tests.par_iter().for_each(
+    let test_cases = tests
+        .iter()
+        .flat_map(
             |MetadataFile {
+                 path,
                  content: metadata,
-             path: metadata_file_path,
              }| {
-            // Starting a new tracing span for this metadata file. This allows our logs to be clear
+                metadata
-            // about which metadata file the logs belong to. We can add other information into this
+                    .cases
-            // as well to be able to associate the logs with the correct metadata file and case
+                    .iter()
-            // that's being executed.
+                    .enumerate()
+                    .flat_map(move |(case_idx, case)| {
+                        metadata
+                            .solc_modes()
+                            .into_iter()
+                            .map(move |solc_mode| (path, metadata, case_idx, case, solc_mode))
+                    })
+            },
+        )
+        .filter(
+            |(metadata_file_path, metadata, _, _, _)| match metadata.ignore {
+                Some(true) => {
+                    tracing::warn!(
+                        metadata_file_path = %metadata_file_path.display(),
+                        "Ignoring metadata file"
+                    );
+                    false
+                }
+                Some(false) | None => true,
+            },
+        )
+        .filter(
+            |(metadata_file_path, _, case_idx, case, _)| match case.ignore {
+                Some(true) => {
+                    tracing::warn!(
+                        metadata_file_path = %metadata_file_path.display(),
+                        case_idx,
+                        case_name = ?case.name,
+                        "Ignoring case"
+                    );
+                    false
+                }
+                Some(false) | None => true,
+            },
+        )
+        .filter(|(metadata_file_path, metadata, ..)| match metadata.required_evm_version {
+            Some(evm_version_requirement) => {
+                let is_allowed = evm_version_requirement
+                    .matches(&<L::Blockchain as revive_dt_node::Node>::evm_version())
+                    && evm_version_requirement
+                        .matches(&<F::Blockchain as revive_dt_node::Node>::evm_version());
+
+                if !is_allowed {
+                    tracing::warn!(
+                        metadata_file_path = %metadata_file_path.display(),
+                        leader_evm_version = %<L::Blockchain as revive_dt_node::Node>::evm_version(),
+                        follower_evm_version = %<F::Blockchain as revive_dt_node::Node>::evm_version(),
+                        version_requirement = %evm_version_requirement,
+                        "Skipped test since the EVM version requirement was not fulfilled."
+                    );
+                }
+
+                is_allowed
+            }
+            None => true,
+        })
+        .collect::<Vec<_>>();
+
+    let metadata_case_status = Arc::new(RwLock::new(test_cases.iter().fold(
+        HashMap::<_, HashMap<_, _>>::new(),
+        |mut map, (path, _, case_idx, case, solc_mode)| {
+            map.entry((path.to_path_buf(), solc_mode.clone()))
+                .or_default()
+                .insert((CaseIdx::new(*case_idx), case.name.clone()), None::<bool>);
+            map
+        },
+    )));
+    let status_reporter_task = {
+        let metadata_case_status = metadata_case_status.clone();
+        let start = Instant::now();
+        async move {
+            const GREEN: &str = "\x1B[32m";
+            const RED: &str = "\x1B[31m";
+            const RESET: &str = "\x1B[0m";
+
+            let mut entries_to_delete = Vec::new();
+            let mut number_of_successes = 0;
+            let mut number_of_failures = 0;
+            loop {
+                let metadata_case_status_read = metadata_case_status.read().await;
+                if metadata_case_status_read.is_empty() {
+                    break;
+                }
+
+                for ((metadata_file_path, solc_mode), case_status) in
+                    metadata_case_status_read.iter()
+                {
+                    if case_status.values().any(|value| value.is_none()) {
+                        continue;
+                    }
+
+                    let contains_failures = case_status
+                        .values()
+                        .any(|value| value.is_some_and(|value| !value));
+
+                    if !contains_failures {
+                        eprintln!(
+                            "{}Succeeded:{} {} - {:?}",
+                            GREEN,
+                            RESET,
+                            metadata_file_path.display(),
+                            solc_mode
+                        )
+                    } else {
+                        eprintln!(
+                            "{}Failed:{} {} - {:?}",
+                            RED,
+                            RESET,
+                            metadata_file_path.display(),
+                            solc_mode
+                        )
+                    };
+
+                    number_of_successes += case_status
+                        .values()
+                        .filter(|value| value.is_some_and(|value| value))
+                        .count();
+                    number_of_failures += case_status
+                        .values()
+                        .filter(|value| value.is_some_and(|value| !value))
+                        .count();
+
+                    let mut case_status = case_status
+                        .iter()
+                        .map(|((case_idx, case_name), case_status)| {
+                            (case_idx.into_inner(), case_name, case_status.unwrap())
+                        })
+                        .collect::<Vec<_>>();
+                    case_status.sort_by(|a, b| a.0.cmp(&b.0));
+                    for (case_idx, case_name, case_status) in case_status.into_iter() {
+                        if case_status {
+                            eprintln!(
+                                "  {GREEN}Case Succeeded:{RESET} {} - Case Idx: {case_idx}",
+                                case_name
+                                    .as_ref()
+                                    .map(|string| string.as_str())
+                                    .unwrap_or("Unnamed case")
+                            )
+                        } else {
+                            eprintln!(
+                                "  {RED}Case Failed:{RESET} {} - Case Idx: {case_idx}",
+                                case_name
+                                    .as_ref()
+                                    .map(|string| string.as_str())
+                                    .unwrap_or("Unnamed case")
+                            )
+                        };
+                    }
+                    eprintln!();
+
+                    entries_to_delete.push((metadata_file_path.clone(), solc_mode.clone()));
+                }
+
+                drop(metadata_case_status_read);
+                let mut metadata_case_status_write = metadata_case_status.write().await;
+                for entry in entries_to_delete.drain(..) {
+                    metadata_case_status_write.remove(&entry);
+                }
+
+                tokio::time::sleep(std::time::Duration::from_secs(3)).await;
+            }
+
+            let elapsed = start.elapsed();
+            eprintln!(
+                "{GREEN}{}{RESET} cases succeeded, {RED}{}{RESET} cases failed in {} seconds",
+                number_of_successes,
+                number_of_failures,
+                elapsed.as_secs()
+            );
+        }
+    };
+
+    let compilation_cache = Arc::new(RwLock::new(HashMap::new()));
+    let driver_task = futures::stream::iter(test_cases).for_each_concurrent(
+        None,
+        |(metadata_file_path, metadata, case_idx, case, solc_mode)| {
+            let compilation_cache = compilation_cache.clone();
+            let leader_node = leader_nodes.round_robbin();
+            let follower_node = follower_nodes.round_robbin();
             let tracing_span = tracing::span!(
                 Level::INFO,
                 "Running driver",
-                metadata_file_path = metadata_file_path.display().to_string(),
+                metadata_file_path = %metadata_file_path.display(),
+                case_idx = case_idx,
+                solc_mode = ?solc_mode,
             );
-            let _guard = tracing_span.enter();
+            let metadata_case_status = metadata_case_status.clone();
-
+            async move {
-            let mut driver = Driver::<L, F>::new(
+                let result = handle_case_driver::<L, F>(
+                    metadata_file_path.as_path(),
                     metadata,
+                    case_idx.into(),
+                    case,
+                    solc_mode.clone(),
                     args,
-                leader_nodes.round_robbin(),
+                    compilation_cache.clone(),
-                follower_nodes.round_robbin(),
+                    leader_node,
-            );
+                    follower_node,
-
+                    span,
-            let execution_result = driver.execute(span);
+                )
-            tracing::info!(
+                .await;
-                case_success_count = execution_result.successful_cases_count,
+                let mut metadata_case_status = metadata_case_status.write().await;
-                case_failure_count = execution_result.failed_cases_count,
+                match result {
-                "Execution completed"
+                    Ok(inputs_executed) => {
-            );
+                        tracing::info!(inputs_executed, "Execution succeeded");
-
+                        metadata_case_status
-            let mut error_count = 0;
+                            .entry((metadata_file_path.clone(), solc_mode))
-            for result in execution_result.results.iter() {
+                            .or_default()
-                if !result.is_success() {
+                            .insert((CaseIdx::new(case_idx), case.name.clone()), Some(true));
-                    tracing::error!(execution_error = ?result, "Encountered an error");
+                    }
-                    error_count += 1;
+                    Err(error) => {
+                        metadata_case_status
+                            .entry((metadata_file_path.clone(), solc_mode))
+                            .or_default()
+                            .insert((CaseIdx::new(case_idx), case.name.clone()), Some(false));
+                        tracing::error!(%error, "Execution failed")
                     }
                 }
-            if error_count == 0 {
+                tracing::info!("Execution completed");
-                tracing::info!("Execution succeeded");
-            } else {
-                tracing::info!("Execution failed");
             }
+            .instrument(tracing_span)
         },
     );
 
+    tokio::join!(status_reporter_task, driver_task);
+
     Ok(())
 }
 
-fn execute_corpus(args: &Arguments, tests: &[MetadataFile], span: Span) -> anyhow::Result<()> {
+#[allow(clippy::too_many_arguments)]
+async fn handle_case_driver<'a, L, F>(
+    metadata_file_path: &'a Path,
+    metadata: &'a Metadata,
+    case_idx: CaseIdx,
+    case: &Case,
+    mode: SolcMode,
+    config: &Arguments,
+    compilation_cache: CompilationCache<'a>,
+    leader_node: &L::Blockchain,
+    follower_node: &F::Blockchain,
+    _: Span,
+) -> anyhow::Result<usize>
+where
+    L: Platform,
+    F: Platform,
+    L::Blockchain: revive_dt_node::Node + Send + Sync + 'static,
+    F::Blockchain: revive_dt_node::Node + Send + Sync + 'static,
+{
+    let leader_pre_link_contracts = get_or_build_contracts::<L>(
+        metadata,
+        metadata_file_path,
+        mode.clone(),
+        config,
+        compilation_cache.clone(),
+        &HashMap::new(),
+    )
+    .await?;
+    let follower_pre_link_contracts = get_or_build_contracts::<F>(
+        metadata,
+        metadata_file_path,
+        mode.clone(),
+        config,
+        compilation_cache.clone(),
+        &HashMap::new(),
+    )
+    .await?;
+
+    let mut leader_deployed_libraries = HashMap::new();
+    let mut follower_deployed_libraries = HashMap::new();
+    let mut contract_sources = metadata.contract_sources()?;
+    for library_instance in metadata
+        .libraries
+        .iter()
+        .flatten()
+        .flat_map(|(_, map)| map.values())
+    {
+        let ContractPathAndIdent {
+            contract_source_path: library_source_path,
+            contract_ident: library_ident,
+        } = contract_sources
+            .remove(library_instance)
+            .context("Failed to find the contract source")?;
+
+        let (leader_code, leader_abi) = leader_pre_link_contracts
+            .1
+            .contracts
+            .get(&library_source_path)
+            .and_then(|contracts| contracts.get(library_ident.as_str()))
+            .context("Declared library was not compiled")?;
+        let (follower_code, follower_abi) = follower_pre_link_contracts
+            .1
+            .contracts
+            .get(&library_source_path)
+            .and_then(|contracts| contracts.get(library_ident.as_str()))
+            .context("Declared library was not compiled")?;
+
+        let leader_code = match alloy::hex::decode(leader_code) {
+            Ok(code) => code,
+            Err(error) => {
+                tracing::error!(
+                    ?error,
+                    contract_source_path = library_source_path.display().to_string(),
+                    contract_ident = library_ident.as_ref(),
+                    "Failed to hex-decode byte code - This could possibly mean that the bytecode requires linking"
+                );
+                anyhow::bail!("Failed to hex-decode the byte code {}", error)
+            }
+        };
+        let follower_code = match alloy::hex::decode(follower_code) {
+            Ok(code) => code,
+            Err(error) => {
+                tracing::error!(
+                    ?error,
+                    contract_source_path = library_source_path.display().to_string(),
+                    contract_ident = library_ident.as_ref(),
+                    "Failed to hex-decode byte code - This could possibly mean that the bytecode requires linking"
+                );
+                anyhow::bail!("Failed to hex-decode the byte code {}", error)
+            }
+        };
+
+        // Getting the deployer address from the cases themselves. This is to ensure that we're
+        // doing the deployments from different accounts and therefore we're not slowed down by
+        // the nonce.
+        let deployer_address = case
+            .steps
+            .iter()
+            .filter_map(|step| match step {
+                Step::FunctionCall(input) => Some(input.caller),
+                Step::BalanceAssertion(..) => None,
+                Step::StorageEmptyAssertion(..) => None,
+            })
+            .next()
+            .unwrap_or(Input::default_caller());
+        let leader_tx = TransactionBuilder::<Ethereum>::with_deploy_code(
+            TransactionRequest::default().from(deployer_address),
+            leader_code,
+        );
+        let follower_tx = TransactionBuilder::<Ethereum>::with_deploy_code(
+            TransactionRequest::default().from(deployer_address),
+            follower_code,
+        );
+
+        let leader_receipt = match leader_node.execute_transaction(leader_tx).await {
+            Ok(receipt) => receipt,
+            Err(error) => {
+                tracing::error!(
+                    node = std::any::type_name::<L>(),
+                    ?error,
+                    "Contract deployment transaction failed."
+                );
+                return Err(error);
+            }
+        };
+        let follower_receipt = match follower_node.execute_transaction(follower_tx).await {
+            Ok(receipt) => receipt,
+            Err(error) => {
+                tracing::error!(
+                    node = std::any::type_name::<F>(),
+                    ?error,
+                    "Contract deployment transaction failed."
+                );
+                return Err(error);
+            }
+        };
+
+        tracing::info!(
+            ?library_instance,
+            library_address = ?leader_receipt.contract_address,
+            "Deployed library to leader"
+        );
+        tracing::info!(
+            ?library_instance,
+            library_address = ?follower_receipt.contract_address,
+            "Deployed library to follower"
+        );
+
+        let Some(leader_library_address) = leader_receipt.contract_address else {
+            tracing::error!("Contract deployment transaction didn't return an address");
+            anyhow::bail!("Contract deployment didn't return an address");
+        };
+        let Some(follower_library_address) = follower_receipt.contract_address else {
+            tracing::error!("Contract deployment transaction didn't return an address");
+            anyhow::bail!("Contract deployment didn't return an address");
+        };
+
+        leader_deployed_libraries.insert(
+            library_instance.clone(),
+            (leader_library_address, leader_abi.clone()),
+        );
+        follower_deployed_libraries.insert(
+            library_instance.clone(),
+            (follower_library_address, follower_abi.clone()),
+        );
+    }
+
+    let metadata_file_contains_libraries = metadata
+        .libraries
+        .iter()
+        .flat_map(|map| map.iter())
+        .flat_map(|(_, value)| value.iter())
+        .next()
+        .is_some();
+    let compiled_contracts_require_linking = leader_pre_link_contracts
+        .1
+        .contracts
+        .values()
+        .chain(follower_pre_link_contracts.1.contracts.values())
+        .flat_map(|value| value.values())
+        .any(|(code, _)| !code.chars().all(|char| char.is_ascii_hexdigit()));
+    let (leader_compiled_contracts, follower_compiled_contracts) =
+        if metadata_file_contains_libraries && compiled_contracts_require_linking {
+            let leader_key = (metadata_file_path, mode.clone(), L::config_id());
+            let follower_key = (metadata_file_path, mode.clone(), L::config_id());
+            {
+                let mut cache = compilation_cache.write().await;
+                cache.remove(&leader_key);
+                cache.remove(&follower_key);
+            }
+
+            let leader_post_link_contracts = get_or_build_contracts::<L>(
+                metadata,
+                metadata_file_path,
+                mode.clone(),
+                config,
+                compilation_cache.clone(),
+                &leader_deployed_libraries,
+            )
+            .await?;
+            let follower_post_link_contracts = get_or_build_contracts::<F>(
+                metadata,
+                metadata_file_path,
+                mode.clone(),
+                config,
+                compilation_cache,
+                &follower_deployed_libraries,
+            )
+            .await?;
+
+            (leader_post_link_contracts, follower_post_link_contracts)
+        } else {
+            (leader_pre_link_contracts, follower_pre_link_contracts)
+        };
+
+    let leader_state = CaseState::<L>::new(
+        leader_compiled_contracts.0.clone(),
+        leader_compiled_contracts.1.contracts.clone(),
+        leader_deployed_libraries,
+    );
+    let follower_state = CaseState::<F>::new(
+        follower_compiled_contracts.0.clone(),
+        follower_compiled_contracts.1.contracts.clone(),
+        follower_deployed_libraries,
+    );
+
+    let mut driver = CaseDriver::<L, F>::new(
+        metadata,
+        case,
+        case_idx,
+        leader_node,
+        follower_node,
+        leader_state,
+        follower_state,
+    );
+    driver.execute().await
+}
+
+async fn get_or_build_contracts<'a, P: Platform>(
+    metadata: &'a Metadata,
+    metadata_file_path: &'a Path,
+    mode: SolcMode,
+    config: &Arguments,
+    compilation_cache: CompilationCache<'a>,
+    deployed_libraries: &HashMap<ContractInstance, (Address, JsonAbi)>,
+) -> anyhow::Result<Arc<(Version, CompilerOutput)>> {
+    let key = (metadata_file_path, mode.clone(), P::config_id());
+    if let Some(compilation_artifact) = compilation_cache.read().await.get(&key).cloned() {
+        let mut compilation_artifact = compilation_artifact.lock().await;
+        match *compilation_artifact {
+            Some(ref compiled_contracts) => {
+                tracing::debug!(?key, "Compiled contracts cache hit");
+                return Ok(compiled_contracts.clone());
+            }
+            None => {
+                tracing::debug!(?key, "Compiled contracts cache miss");
+                let compiled_contracts = Arc::new(
+                    compile_contracts::<P>(
+                        metadata,
+                        metadata_file_path,
+                        &mode,
+                        config,
+                        deployed_libraries,
+                    )
+                    .await?,
+                );
+                *compilation_artifact = Some(compiled_contracts.clone());
+                return Ok(compiled_contracts.clone());
+            }
+        }
+    };
+
+    tracing::debug!(?key, "Compiled contracts cache miss");
+    let mutex = {
+        let mut compilation_cache = compilation_cache.write().await;
+        let mutex = Arc::new(Mutex::new(None));
+        compilation_cache.insert(key, mutex.clone());
+        mutex
+    };
+    let mut compilation_artifact = mutex.lock().await;
+    let compiled_contracts = Arc::new(
+        compile_contracts::<P>(
+            metadata,
+            metadata_file_path,
+            &mode,
+            config,
+            deployed_libraries,
+        )
+        .await?,
+    );
+    *compilation_artifact = Some(compiled_contracts.clone());
+    Ok(compiled_contracts.clone())
+}
+
+async fn compile_contracts<P: Platform>(
+    metadata: &Metadata,
+    metadata_file_path: &Path,
+    mode: &SolcMode,
+    config: &Arguments,
+    deployed_libraries: &HashMap<ContractInstance, (Address, JsonAbi)>,
+) -> anyhow::Result<(Version, CompilerOutput)> {
+    let compiler_version_or_requirement = mode.compiler_version_to_use(config.solc.clone());
+    let compiler_path =
+        P::Compiler::get_compiler_executable(config, compiler_version_or_requirement).await?;
+    let compiler_version = P::Compiler::new(compiler_path.clone()).version()?;
+
+    tracing::info!(
+        %compiler_version,
+        metadata_file_path = %metadata_file_path.display(),
+        mode = ?mode,
+        "Compiling contracts"
+    );
+
+    let compiler = Compiler::<P::Compiler>::new()
+        .with_allow_path(metadata.directory()?)
+        .with_optimization(mode.solc_optimize());
+    let mut compiler = metadata
+        .files_to_compile()?
+        .try_fold(compiler, |compiler, path| compiler.with_source(&path))?;
+    for (library_instance, (library_address, _)) in deployed_libraries.iter() {
+        let library_ident = &metadata
+            .contracts
+            .as_ref()
+            .and_then(|contracts| contracts.get(library_instance))
+            .expect("Impossible for library to not be found in contracts")
+            .contract_ident;
+
+        // Note the following: we need to tell solc which files require the libraries to be linked
+        // into them. We do not have access to this information and therefore we choose an easier,
+        // yet more compute intensive route, of telling solc that all of the files need to link the
+        // library and it will only perform the linking for the files that do actually need the
+        // library.
+        compiler = FilesWithExtensionIterator::new(metadata.directory()?)
+            .with_allowed_extension("sol")
+            .fold(compiler, |compiler, path| {
+                compiler.with_library(&path, library_ident.as_str(), *library_address)
+            });
+    }
+
+    let compiler_output = compiler.try_build(compiler_path).await?;
+
+    Ok((compiler_version, compiler_output))
+}
+
+async fn execute_corpus(
+    args: &Arguments,
+    tests: &[MetadataFile],
+    span: Span,
+) -> anyhow::Result<()> {
     match (&args.leader, &args.follower) {
         (TestingPlatform::Geth, TestingPlatform::Kitchensink) => {
-            run_driver::<Geth, Kitchensink>(args, tests, span)?
+            run_driver::<Geth, Kitchensink>(args, tests, span).await?
         }
         (TestingPlatform::Geth, TestingPlatform::Geth) => {
-            run_driver::<Geth, Geth>(args, tests, span)?
+            run_driver::<Geth, Geth>(args, tests, span).await?
         }
         _ => unimplemented!(),
     }
@@ -155,24 +733,43 @@ fn execute_corpus(args: &Arguments, tests: &[MetadataFile], span: Span) -> anyho
     Ok(())
 }
 
-fn compile_corpus(
+async fn compile_corpus(
     config: &Arguments,
     tests: &[MetadataFile],
     platform: &TestingPlatform,
-    span: Span,
+    _: Span,
 ) {
-    tests.par_iter().for_each(|metadata| {
+    let tests = tests.iter().flat_map(|metadata| {
-        for mode in &metadata.solc_modes() {
+        metadata
+            .solc_modes()
+            .into_iter()
+            .map(move |solc_mode| (metadata, solc_mode))
+    });
+
+    futures::stream::iter(tests)
+        .for_each_concurrent(None, |(metadata, mode)| async move {
             match platform {
                 TestingPlatform::Geth => {
-                    let mut state = State::<Geth>::new(config, span);
+                    let _ = compile_contracts::<Geth>(
-                    let _ = state.build_contracts(mode, metadata);
+                        &metadata.content,
+                        &metadata.path,
+                        &mode,
+                        config,
+                        &Default::default(),
+                    )
+                    .await;
                 }
                 TestingPlatform::Kitchensink => {
-                    let mut state = State::<Kitchensink>::new(config, span);
+                    let _ = compile_contracts::<Geth>(
-                    let _ = state.build_contracts(mode, metadata);
+                        &metadata.content,
+                        &metadata.path,
+                        &mode,
+                        config,
+                        &Default::default(),
+                    )
+                    .await;
                 }
-            };
             }
-    });
+        })
+        .await;
 }

crates/format/Cargo.toml

@@ -11,6 +11,8 @@ rust-version.workspace = true
 [dependencies]
 revive-dt-common = { workspace = true }
 
+revive-common = { workspace = true }
+
 alloy = { workspace = true }
 alloy-primitives = { workspace = true }
 alloy-sol-types = { workspace = true }
@@ -19,3 +21,6 @@ tracing = { workspace = true }
 semver = { workspace = true }
 serde = { workspace = true, features = ["derive"] }
 serde_json = { workspace = true }
+
+[dev-dependencies]
+tokio = { workspace = true }

crates/format/src/case.rs

@@ -1,31 +1,50 @@
-use serde::Deserialize;
+use serde::{Deserialize, Serialize};
 
 use revive_dt_common::macros::define_wrapper_type;
 
 use crate::{
-    input::{Expected, Input},
+    input::{Expected, Step},
     mode::Mode,
 };
 
-#[derive(Debug, Default, Deserialize, Clone, Eq, PartialEq)]
+#[derive(Debug, Default, Serialize, Deserialize, Clone, Eq, PartialEq)]
 pub struct Case {
+    #[serde(skip_serializing_if = "Option::is_none")]
     pub name: Option<String>,
+
+    #[serde(skip_serializing_if = "Option::is_none")]
     pub comment: Option<String>,
+
+    #[serde(skip_serializing_if = "Option::is_none")]
     pub modes: Option<Vec<Mode>>,
-    pub inputs: Vec<Input>,
+
+    #[serde(rename = "inputs")]
+    pub steps: Vec<Step>,
+
+    #[serde(skip_serializing_if = "Option::is_none")]
     pub group: Option<String>,
+
+    #[serde(skip_serializing_if = "Option::is_none")]
     pub expected: Option<Expected>,
+
+    #[serde(skip_serializing_if = "Option::is_none")]
+    pub ignore: Option<bool>,
 }
 
 impl Case {
-    pub fn inputs_iterator(&self) -> impl Iterator<Item = Input> {
+    #[allow(irrefutable_let_patterns)]
-        let inputs_len = self.inputs.len();
+    pub fn steps_iterator(&self) -> impl Iterator<Item = Step> {
-        self.inputs
+        let steps_len = self.steps.len();
+        self.steps
             .clone()
             .into_iter()
             .enumerate()
-            .map(move |(idx, mut input)| {
+            .map(move |(idx, mut step)| {
-                if idx + 1 == inputs_len {
+                let Step::FunctionCall(ref mut input) = step else {
+                    return step;
+                };
+
+                if idx + 1 == steps_len {
                     if input.expected.is_none() {
                         input.expected = self.expected.clone();
                     }
@@ -35,9 +54,9 @@ impl Case {
                     // the case? What are we supposed to do with that final expected field on the
                     // case?
 
-                    input
+                    step
                 } else {
-                    input
+                    step
                 }
             })
     }

crates/format/src/corpus.rs

@@ -17,7 +17,25 @@ impl Corpus {
     /// Try to read and parse the corpus definition file at given `path`.
     pub fn try_from_path(path: &Path) -> anyhow::Result<Self> {
         let file = File::open(path)?;
-        Ok(serde_json::from_reader(file)?)
+        let mut corpus: Corpus = serde_json::from_reader(file)?;
+
+        // Ensure that the path mentioned in the corpus is relative to the corpus file.
+        // Canonicalizing also helps make the path in any errors unambiguous.
+        corpus.path = path
+            .parent()
+            .ok_or_else(|| {
+                anyhow::anyhow!("Corpus path '{}' does not point to a file", path.display())
+            })?
+            .canonicalize()
+            .map_err(|error| {
+                anyhow::anyhow!(
+                    "Failed to canonicalize path to corpus '{}': {error}",
+                    path.display()
+                )
+            })?
+            .join(corpus.path);
+
+        Ok(corpus)
     }
 
     /// Scan the corpus base directory and return all tests found.
@@ -35,6 +53,7 @@ impl Corpus {
 ///
 /// `path` is expected to be a directory.
 pub fn collect_metadata(path: &Path, tests: &mut Vec<MetadataFile>) {
+    if path.is_dir() {
         let dir_entry = match std::fs::read_dir(path) {
             Ok(dir_entry) => dir_entry,
             Err(error) => {
@@ -64,4 +83,17 @@ pub fn collect_metadata(path: &Path, tests: &mut Vec<MetadataFile>) {
                 }
             }
         }
+    } else {
+        let Some(extension) = path.extension() else {
+            tracing::error!("Failed to get file extension");
+            return;
+        };
+        if extension.eq_ignore_ascii_case("sol") || extension.eq_ignore_ascii_case("json") {
+            if let Some(metadata) = MetadataFile::try_from_file(path) {
+                tests.push(metadata)
+            }
+        } else {
+            tracing::error!(?extension, "Unsupported file extension");
+        }
+    }
 }

crates/format/src/input.rs

@@ -2,7 +2,8 @@ use std::collections::HashMap;
 
 use alloy::{
     eips::BlockNumberOrTag,
-    json_abi::JsonAbi,
+    hex::ToHexExt,
+    json_abi::Function,
     network::TransactionBuilder,
     primitives::{Address, Bytes, U256},
     rpc::types::TransactionRequest,
@@ -14,25 +15,90 @@ use serde::{Deserialize, Serialize};
 
 use revive_dt_common::macros::define_wrapper_type;
 
-use crate::metadata::ContractInstance;
 use crate::traits::ResolverApi;
+use crate::{metadata::ContractInstance, traits::ResolutionContext};
 
-#[derive(Clone, Debug, Default, Deserialize, Eq, PartialEq)]
+/// A test step.
+///
+/// A test step can be anything. It could be an invocation to a function, an assertion, or any other
+/// action that needs to be run or executed on the nodes used in the tests.
+#[derive(Clone, Debug, Serialize, Deserialize, Eq, PartialEq)]
+#[serde(untagged)]
+pub enum Step {
+    /// A function call or an invocation to some function on some smart contract.
+    FunctionCall(Box<Input>),
+    /// A step for performing a balance assertion on some account or contract.
+    BalanceAssertion(Box<BalanceAssertion>),
+    /// A step for asserting that the storage of some contract or account is empty.
+    StorageEmptyAssertion(Box<StorageEmptyAssertion>),
+}
+
+#[derive(Clone, Debug, Default, Serialize, Deserialize, Eq, PartialEq)]
 pub struct Input {
     #[serde(default = "Input::default_caller")]
     pub caller: Address,
+
+    #[serde(skip_serializing_if = "Option::is_none")]
     pub comment: Option<String>,
+
     #[serde(default = "Input::default_instance")]
     pub instance: ContractInstance,
+
     pub method: Method,
+
     #[serde(default)]
     pub calldata: Calldata,
+
+    #[serde(skip_serializing_if = "Option::is_none")]
     pub expected: Option<Expected>,
+
+    #[serde(skip_serializing_if = "Option::is_none")]
     pub value: Option<EtherValue>,
+
+    #[serde(skip_serializing_if = "Option::is_none")]
     pub storage: Option<HashMap<String, Calldata>>,
+
+    #[serde(skip_serializing_if = "Option::is_none")]
+    pub variable_assignments: Option<VariableAssignments>,
 }
 
-#[derive(Clone, Debug, Deserialize, Eq, PartialEq)]
+#[derive(Clone, Debug, Default, Serialize, Deserialize, Eq, PartialEq)]
+pub struct BalanceAssertion {
+    /// An optional comment on the balance assertion.
+    #[serde(skip_serializing_if = "Option::is_none")]
+    pub comment: Option<String>,
+
+    /// The address that the balance assertion should be done on.
+    ///
+    /// This is a string which will be resolved into an address when being processed. Therefore,
+    /// this could be a normal hex address, a variable such as `Test.address`, or perhaps even a
+    /// full on variable like `$VARIABLE:Uniswap`. It follows the same resolution rules that are
+    /// followed in the calldata.
+    pub address: String,
+
+    /// The amount of balance to assert that the account or contract has.
+    pub expected_balance: U256,
+}
+
+#[derive(Clone, Debug, Default, Serialize, Deserialize, Eq, PartialEq)]
+pub struct StorageEmptyAssertion {
+    /// An optional comment on the storage empty assertion.
+    #[serde(skip_serializing_if = "Option::is_none")]
+    pub comment: Option<String>,
+
+    /// The address that the balance assertion should be done on.
+    ///
+    /// This is a string which will be resolved into an address when being processed. Therefore,
+    /// this could be a normal hex address, a variable such as `Test.address`, or perhaps even a
+    /// full on variable like `$VARIABLE:Uniswap`. It follows the same resolution rules that are
+    /// followed in the calldata.
+    pub address: String,
+
+    /// A boolean of whether the storage of the address is empty or not.
+    pub is_storage_empty: bool,
+}
+
+#[derive(Clone, Debug, Serialize, Deserialize, Eq, PartialEq)]
 #[serde(untagged)]
 pub enum Expected {
     Calldata(Calldata),
@@ -40,17 +106,21 @@ pub enum Expected {
     ExpectedMany(Vec<ExpectedOutput>),
 }
 
-#[derive(Clone, Debug, Default, Deserialize, Eq, PartialEq)]
+#[derive(Clone, Debug, Default, Serialize, Deserialize, Eq, PartialEq)]
 pub struct ExpectedOutput {
+    #[serde(skip_serializing_if = "Option::is_none")]
     pub compiler_version: Option<VersionReq>,
+    #[serde(skip_serializing_if = "Option::is_none")]
     pub return_data: Option<Calldata>,
+    #[serde(skip_serializing_if = "Option::is_none")]
     pub events: Option<Vec<Event>>,
     #[serde(default)]
     pub exception: bool,
 }
 
-#[derive(Clone, Debug, Default, Deserialize, Eq, PartialEq)]
+#[derive(Clone, Debug, Default, Serialize, Deserialize, Eq, PartialEq)]
 pub struct Event {
+    #[serde(skip_serializing_if = "Option::is_none")]
     pub address: Option<String>,
     pub topics: Vec<String>,
     pub values: Calldata,
@@ -107,7 +177,7 @@ pub struct Event {
 /// [`Single`]: Calldata::Single
 /// [`Compound`]: Calldata::Compound
 /// [reverse polish notation]: https://en.wikipedia.org/wiki/Reverse_Polish_notation
-#[derive(Clone, Debug, Deserialize, Eq, PartialEq)]
+#[derive(Clone, Debug, Serialize, Deserialize, Eq, PartialEq)]
 #[serde(untagged)]
 pub enum Calldata {
     Single(Bytes),
@@ -136,10 +206,12 @@ enum Operation {
     BitwiseAnd,
     BitwiseOr,
     BitwiseXor,
+    ShiftLeft,
+    ShiftRight,
 }
 
 /// Specify how the contract is called.
-#[derive(Debug, Default, Deserialize, Clone, Eq, PartialEq)]
+#[derive(Debug, Default, Serialize, Deserialize, Clone, Eq, PartialEq)]
 pub enum Method {
     /// Initiate a deploy transaction, calling contracts constructor.
     ///
@@ -164,6 +236,14 @@ define_wrapper_type!(
     pub struct EtherValue(U256);
 );
 
+#[derive(Clone, Debug, Default, Serialize, Deserialize, Eq, PartialEq)]
+pub struct VariableAssignments {
+    /// A vector of the variable names to assign to the return data.
+    ///
+    /// Example: `UniswapV3PoolAddress`
+    pub return_data: Vec<String>,
+}
+
 impl Input {
     pub const fn default_caller() -> Address {
         Address(FixedBytes(alloy::hex!(
@@ -175,35 +255,21 @@ impl Input {
         ContractInstance::new("Test")
     }
 
-    fn instance_to_address(
+    pub async fn encoded_input(
         &self,
-        instance: &ContractInstance,
+        resolver: &impl ResolverApi,
-        deployed_contracts: &HashMap<ContractInstance, (Address, JsonAbi)>,
+        context: ResolutionContext<'_>,
-    ) -> anyhow::Result<Address> {
-        deployed_contracts
-            .get(instance)
-            .map(|(a, _)| *a)
-            .ok_or_else(|| anyhow::anyhow!("instance {instance:?} not deployed"))
-    }
-
-    pub fn encoded_input(
-        &self,
-        deployed_contracts: &HashMap<ContractInstance, (Address, JsonAbi)>,
-        chain_state_provider: &impl ResolverApi,
     ) -> anyhow::Result<Bytes> {
         match self.method {
             Method::Deployer | Method::Fallback => {
-                let calldata = self
+                let calldata = self.calldata.calldata(resolver, context).await?;
-                    .calldata
-                    .calldata(deployed_contracts, chain_state_provider)?;
 
                 Ok(calldata.into())
             }
             Method::FunctionName(ref function_name) => {
-                let Some(abi) = deployed_contracts.get(&self.instance).map(|(_, a)| a) else {
+                let Some(abi) = context.deployed_contract_abi(&self.instance) else {
                     tracing::error!(
                         contract_name = self.instance.as_ref(),
-                        available_abis = ?deployed_contracts.keys().collect::<Vec<_>>(),
                         "Attempted to lookup ABI of contract but it wasn't found"
                     );
                     anyhow::bail!("ABI for instance '{}' not found", self.instance.as_ref());
@@ -214,9 +280,17 @@ impl Input {
                 // We follow the same logic that's implemented in the matter-labs-tester where they resolve
                 // the function name into a function selector and they assume that he function doesn't have
                 // any existing overloads.
+                // Overloads are handled by providing the full function signature in the "function
+                // name".
                 // https://github.com/matter-labs/era-compiler-tester/blob/1dfa7d07cba0734ca97e24704f12dd57f6990c2c/compiler_tester/src/test/case/input/mod.rs#L158-L190
-                let function = abi
+                let selector = if function_name.contains('(') && function_name.contains(')') {
-                    .functions()
+                    Function::parse(function_name)
+                        .context(
+                            "Failed to parse the provided function name into a function signature",
+                        )?
+                        .selector()
+                } else {
+                    abi.functions()
                         .find(|function| function.signature().starts_with(function_name))
                         .ok_or_else(|| {
                             anyhow::anyhow!(
@@ -224,7 +298,9 @@ impl Input {
                                 function_name,
                                 &self.instance
                             )
-                    })?;
+                        })?
+                        .selector()
+                };
 
                 tracing::trace!("Functions found for instance: {}", self.instance.as_ref());
 
@@ -240,12 +316,10 @@ impl Input {
                 // We're using indices in the following code in order to avoid the need for us to allocate
                 // a new buffer for each one of the resolved arguments.
                 let mut calldata = Vec::<u8>::with_capacity(4 + self.calldata.size_requirement());
-                calldata.extend(function.selector().0);
+                calldata.extend(selector.0);
-                self.calldata.calldata_into_slice(
+                self.calldata
-                    &mut calldata,
+                    .calldata_into_slice(&mut calldata, resolver, context)
-                    deployed_contracts,
+                    .await?;
-                    chain_state_provider,
-                )?;
 
                 Ok(calldata.into())
             }
@@ -253,12 +327,12 @@ impl Input {
     }
 
     /// Parse this input into a legacy transaction.
-    pub fn legacy_transaction(
+    pub async fn legacy_transaction(
         &self,
-        deployed_contracts: &HashMap<ContractInstance, (Address, JsonAbi)>,
+        resolver: &impl ResolverApi,
-        chain_state_provider: &impl ResolverApi,
+        context: ResolutionContext<'_>,
     ) -> anyhow::Result<TransactionRequest> {
-        let input_data = self.encoded_input(deployed_contracts, chain_state_provider)?;
+        let input_data = self.encoded_input(resolver, context).await?;
         let transaction_request = TransactionRequest::default().from(self.caller).value(
             self.value
                 .map(|value| value.into_inner())
@@ -267,7 +341,10 @@ impl Input {
         match self.method {
             Method::Deployer => Ok(transaction_request.with_deploy_code(input_data)),
             _ => Ok(transaction_request
-                .to(self.instance_to_address(&self.instance, deployed_contracts)?)
+                .to(context
+                    .deployed_contract_address(&self.instance)
+                    .context("Failed to get the contract address")
+                    .copied()?)
                 .input(input_data.into())),
         }
     }
@@ -336,21 +413,22 @@ impl Calldata {
         }
     }
 
-    pub fn calldata(
+    pub async fn calldata(
         &self,
-        deployed_contracts: &HashMap<ContractInstance, (Address, JsonAbi)>,
+        resolver: &impl ResolverApi,
-        chain_state_provider: &impl ResolverApi,
+        context: ResolutionContext<'_>,
     ) -> anyhow::Result<Vec<u8>> {
         let mut buffer = Vec::<u8>::with_capacity(self.size_requirement());
-        self.calldata_into_slice(&mut buffer, deployed_contracts, chain_state_provider)?;
+        self.calldata_into_slice(&mut buffer, resolver, context)
+            .await?;
         Ok(buffer)
     }
 
-    pub fn calldata_into_slice(
+    pub async fn calldata_into_slice(
         &self,
         buffer: &mut Vec<u8>,
-        deployed_contracts: &HashMap<ContractInstance, (Address, JsonAbi)>,
+        resolver: &impl ResolverApi,
-        chain_state_provider: &impl ResolverApi,
+        context: ResolutionContext<'_>,
     ) -> anyhow::Result<()> {
         match self {
             Calldata::Single(bytes) => {
@@ -358,7 +436,7 @@ impl Calldata {
             }
             Calldata::Compound(items) => {
                 for (arg_idx, arg) in items.iter().enumerate() {
-                    match arg.resolve(deployed_contracts, chain_state_provider) {
+                    match arg.resolve(resolver, context).await {
                         Ok(resolved) => {
                             buffer.extend(resolved.to_be_bytes::<32>());
                         }
@@ -381,11 +459,11 @@ impl Calldata {
     }
 
     /// Checks if this [`Calldata`] is equivalent to the passed calldata bytes.
-    pub fn is_equivalent(
+    pub async fn is_equivalent(
         &self,
         other: &[u8],
-        deployed_contracts: &HashMap<ContractInstance, (Address, JsonAbi)>,
+        resolver: &impl ResolverApi,
-        chain_state_provider: &impl ResolverApi,
+        context: ResolutionContext<'_>,
     ) -> anyhow::Result<bool> {
         match self {
             Calldata::Single(calldata) => Ok(calldata == other),
@@ -407,7 +485,7 @@ impl Calldata {
                         std::borrow::Cow::Borrowed(other)
                     };
 
-                    let this = this.resolve(deployed_contracts, chain_state_provider)?;
+                    let this = this.resolve(resolver, context).await?;
                     let other = U256::from_be_slice(&other);
                     if this != other {
                         return Ok(false);
@@ -420,18 +498,18 @@ impl Calldata {
 }
 
 impl CalldataItem {
-    fn resolve(
+    async fn resolve(
         &self,
-        deployed_contracts: &HashMap<ContractInstance, (Address, JsonAbi)>,
+        resolver: &impl ResolverApi,
-        chain_state_provider: &impl ResolverApi,
+        context: ResolutionContext<'_>,
     ) -> anyhow::Result<U256> {
         let mut stack = Vec::<CalldataToken<U256>>::new();
 
         for token in self
             .calldata_tokens()
-            .map(|token| token.resolve(deployed_contracts, chain_state_provider))
+            .map(|token| token.resolve(resolver, context))
         {
-            let token = token?;
+            let token = token.await?;
             let new_token = match token {
                 CalldataToken::Item(_) => token,
                 CalldataToken::Operation(operation) => {
@@ -452,8 +530,14 @@ impl CalldataItem {
                         Operation::BitwiseAnd => Some(left_operand & right_operand),
                         Operation::BitwiseOr => Some(left_operand | right_operand),
                         Operation::BitwiseXor => Some(left_operand ^ right_operand),
+                        Operation::ShiftLeft => {
+                            Some(left_operand << usize::try_from(right_operand)?)
                         }
-                    .context("Invalid calldata arithmetic operation")?;
+                        Operation::ShiftRight => {
+                            Some(left_operand >> usize::try_from(right_operand)?)
+                        }
+                    }
+                    .context("Invalid calldata arithmetic operation - Invalid operation")?;
 
                     CalldataToken::Item(result)
                 }
@@ -464,12 +548,21 @@ impl CalldataItem {
         match stack.as_slice() {
             // Empty stack means that we got an empty compound calldata which we resolve to zero.
             [] => Ok(U256::ZERO),
-            [CalldataToken::Item(item)] => Ok(*item),
+            [CalldataToken::Item(item)] => {
-            _ => Err(anyhow::anyhow!("Invalid calldata arithmetic operation")),
+                tracing::debug!(
+                    original = self.0,
+                    resolved = item.to_be_bytes::<32>().encode_hex(),
+                    "Resolved a Calldata item"
+                );
+                Ok(*item)
+            }
+            _ => Err(anyhow::anyhow!(
+                "Invalid calldata arithmetic operation - Invalid stack"
+            )),
         }
     }
 
-    fn calldata_tokens<'a>(&'a self) -> impl Iterator<Item = CalldataToken<&'a str>> + 'a {
+    fn calldata_tokens(&self) -> impl Iterator<Item = CalldataToken<&str>> {
         self.0.split(' ').map(|item| match item {
             "+" => CalldataToken::Operation(Operation::Addition),
             "-" => CalldataToken::Operation(Operation::Subtraction),
@@ -478,6 +571,8 @@ impl CalldataItem {
             "&" => CalldataToken::Operation(Operation::BitwiseAnd),
             "|" => CalldataToken::Operation(Operation::BitwiseOr),
             "^" => CalldataToken::Operation(Operation::BitwiseXor),
+            "<<" => CalldataToken::Operation(Operation::ShiftLeft),
+            ">>" => CalldataToken::Operation(Operation::ShiftRight),
             _ => CalldataToken::Item(item),
         })
     }
@@ -491,9 +586,12 @@ impl<T> CalldataToken<T> {
     const GAS_LIMIT_VARIABLE: &str = "$GAS_LIMIT";
     const COINBASE_VARIABLE: &str = "$COINBASE";
     const DIFFICULTY_VARIABLE: &str = "$DIFFICULTY";
+    const BLOCK_BASE_FEE_VARIABLE: &str = "$BASE_FEE";
     const BLOCK_HASH_VARIABLE_PREFIX: &str = "$BLOCK_HASH";
     const BLOCK_NUMBER_VARIABLE: &str = "$BLOCK_NUMBER";
     const BLOCK_TIMESTAMP_VARIABLE: &str = "$BLOCK_TIMESTAMP";
+    const TRANSACTION_GAS_PRICE: &str = "$TRANSACTION_GAS_PRICE";
+    const VARIABLE_PREFIX: &str = "$VARIABLE:";
 
     fn into_item(self) -> Option<T> {
         match self {
@@ -512,23 +610,21 @@ impl<T: AsRef<str>> CalldataToken<T> {
     /// This piece of code is taken from the matter-labs-tester repository which is licensed under
     /// MIT or Apache. The original source code can be found here:
     /// https://github.com/matter-labs/era-compiler-tester/blob/0ed598a27f6eceee7008deab3ff2311075a2ec69/compiler_tester/src/test/case/input/value.rs#L43-L146
-    fn resolve(
+    async fn resolve(
         self,
-        deployed_contracts: &HashMap<ContractInstance, (Address, JsonAbi)>,
+        resolver: &impl ResolverApi,
-        chain_state_provider: &impl ResolverApi,
+        context: ResolutionContext<'_>,
     ) -> anyhow::Result<CalldataToken<U256>> {
         match self {
             Self::Item(item) => {
                 let item = item.as_ref();
                 let value = if let Some(instance) = item.strip_suffix(Self::ADDRESS_VARIABLE_SUFFIX)
                 {
-                    Ok(U256::from_be_slice(
+                    context
-                        deployed_contracts
+                        .deployed_contract_address(&ContractInstance::new(instance))
-                            .get(&ContractInstance::new(instance))
+                        .ok_or_else(|| anyhow::anyhow!("Instance `{}` not found", instance))
-                            .map(|(a, _)| *a)
+                        .map(AsRef::as_ref)
-                            .ok_or_else(|| anyhow::anyhow!("Instance `{}` not found", instance))?
+                        .map(U256::from_be_slice)
-                            .as_ref(),
-                    ))
                 } else if let Some(value) = item.strip_prefix(Self::NEGATIVE_VALUE_PREFIX) {
                     let value = U256::from_str_radix(value, 10).map_err(|error| {
                         anyhow::anyhow!("Invalid decimal literal after `-`: {}", error)
@@ -541,23 +637,36 @@ impl<T: AsRef<str>> CalldataToken<T> {
                         .ok_or_else(|| anyhow::anyhow!("`-0` is invalid literal"))?;
                     Ok(U256::MAX.checked_sub(value).expect("Always valid"))
                 } else if let Some(value) = item.strip_prefix(Self::HEX_LITERAL_PREFIX) {
-                    Ok(U256::from_str_radix(value, 16).map_err(|error| {
+                    U256::from_str_radix(value, 16)
-                        anyhow::anyhow!("Invalid hexadecimal literal: {}", error)
+                        .map_err(|error| anyhow::anyhow!("Invalid hexadecimal literal: {}", error))
-                    })?)
                 } else if item == Self::CHAIN_VARIABLE {
-                    let chain_id = chain_state_provider.chain_id()?;
+                    resolver.chain_id().await.map(U256::from)
-                    Ok(U256::from(chain_id))
+                } else if item == Self::TRANSACTION_GAS_PRICE {
+                    context
+                        .transaction_hash()
+                        .context("No transaction hash provided to get the transaction gas price")
+                        .map(|tx_hash| resolver.transaction_gas_price(tx_hash))?
+                        .await
+                        .map(U256::from)
                 } else if item == Self::GAS_LIMIT_VARIABLE {
-                    let gas_limit =
+                    resolver
-                        chain_state_provider.block_gas_limit(BlockNumberOrTag::Latest)?;
+                        .block_gas_limit(context.resolve_block_number(BlockNumberOrTag::Latest))
-                    Ok(U256::from(gas_limit))
+                        .await
+                        .map(U256::from)
                 } else if item == Self::COINBASE_VARIABLE {
-                    let coinbase = chain_state_provider.block_coinbase(BlockNumberOrTag::Latest)?;
+                    resolver
-                    Ok(U256::from_be_slice(coinbase.as_ref()))
+                        .block_coinbase(context.resolve_block_number(BlockNumberOrTag::Latest))
+                        .await
+                        .map(|address| U256::from_be_slice(address.as_ref()))
                 } else if item == Self::DIFFICULTY_VARIABLE {
-                    let block_difficulty =
+                    resolver
-                        chain_state_provider.block_difficulty(BlockNumberOrTag::Latest)?;
+                        .block_difficulty(context.resolve_block_number(BlockNumberOrTag::Latest))
-                    Ok(block_difficulty)
+                        .await
+                } else if item == Self::BLOCK_BASE_FEE_VARIABLE {
+                    resolver
+                        .block_base_fee(context.resolve_block_number(BlockNumberOrTag::Latest))
+                        .await
+                        .map(U256::from)
                 } else if item.starts_with(Self::BLOCK_HASH_VARIABLE_PREFIX) {
                     let offset: u64 = item
                         .split(':')
@@ -565,23 +674,34 @@ impl<T: AsRef<str>> CalldataToken<T> {
                         .and_then(|value| value.parse().ok())
                         .unwrap_or_default();
 
-                    let current_block_number = chain_state_provider.last_block_number()?;
+                    let current_block_number = match context.tip_block_number() {
-                    let desired_block_number = current_block_number - offset;
+                        Some(block_number) => *block_number,
+                        None => resolver.last_block_number().await?,
+                    };
+                    let desired_block_number = current_block_number.saturating_sub(offset);
 
-                    let block_hash =
+                    let block_hash = resolver.block_hash(desired_block_number.into()).await?;
-                        chain_state_provider.block_hash(desired_block_number.into())?;
 
                     Ok(U256::from_be_bytes(block_hash.0))
                 } else if item == Self::BLOCK_NUMBER_VARIABLE {
-                    let current_block_number = chain_state_provider.last_block_number()?;
+                    let current_block_number = match context.tip_block_number() {
+                        Some(block_number) => *block_number,
+                        None => resolver.last_block_number().await?,
+                    };
                     Ok(U256::from(current_block_number))
                 } else if item == Self::BLOCK_TIMESTAMP_VARIABLE {
-                    let timestamp =
+                    resolver
-                        chain_state_provider.block_timestamp(BlockNumberOrTag::Latest)?;
+                        .block_timestamp(context.resolve_block_number(BlockNumberOrTag::Latest))
-                    Ok(U256::from(timestamp))
+                        .await
+                        .map(U256::from)
+                } else if let Some(variable_name) = item.strip_prefix(Self::VARIABLE_PREFIX) {
+                    context
+                        .variable(variable_name)
+                        .context("Variable lookup failed")
+                        .copied()
                 } else {
-                    Ok(U256::from_str_radix(item, 10)
+                    U256::from_str_radix(item, 10)
-                        .map_err(|error| anyhow::anyhow!("Invalid decimal literal: {}", error))?)
+                        .map_err(|error| anyhow::anyhow!("Invalid decimal literal: {}", error))
                 };
                 value.map(CalldataToken::Item)
             }
@@ -620,51 +740,53 @@ impl<'de> Deserialize<'de> for EtherValue {
 mod tests {
 
     use super::*;
-    use alloy::json_abi::JsonAbi;
+    use alloy::{eips::BlockNumberOrTag, json_abi::JsonAbi};
-    use alloy_primitives::address;
+    use alloy_primitives::{BlockHash, BlockNumber, BlockTimestamp, ChainId, TxHash, address};
     use alloy_sol_types::SolValue;
     use std::collections::HashMap;
 
     struct MockResolver;
 
     impl ResolverApi for MockResolver {
-        fn chain_id(&self) -> anyhow::Result<alloy_primitives::ChainId> {
+        async fn chain_id(&self) -> anyhow::Result<ChainId> {
             Ok(0x123)
         }
 
-        fn block_gas_limit(&self, _: alloy::eips::BlockNumberOrTag) -> anyhow::Result<u128> {
+        async fn block_gas_limit(&self, _: BlockNumberOrTag) -> anyhow::Result<u128> {
             Ok(0x1234)
         }
 
-        fn block_coinbase(&self, _: alloy::eips::BlockNumberOrTag) -> anyhow::Result<Address> {
+        async fn block_coinbase(&self, _: BlockNumberOrTag) -> anyhow::Result<Address> {
             Ok(Address::ZERO)
         }
 
-        fn block_difficulty(&self, _: alloy::eips::BlockNumberOrTag) -> anyhow::Result<U256> {
+        async fn block_difficulty(&self, _: BlockNumberOrTag) -> anyhow::Result<U256> {
             Ok(U256::from(0x12345u128))
         }
 
-        fn block_hash(
+        async fn block_base_fee(&self, _: BlockNumberOrTag) -> anyhow::Result<u64> {
-            &self,
+            Ok(0x100)
-            _: alloy::eips::BlockNumberOrTag,
+        }
-        ) -> anyhow::Result<alloy_primitives::BlockHash> {
+
+        async fn block_hash(&self, _: BlockNumberOrTag) -> anyhow::Result<BlockHash> {
             Ok([0xEE; 32].into())
         }
 
-        fn block_timestamp(
+        async fn block_timestamp(&self, _: BlockNumberOrTag) -> anyhow::Result<BlockTimestamp> {
-            &self,
-            _: alloy::eips::BlockNumberOrTag,
-        ) -> anyhow::Result<alloy_primitives::BlockTimestamp> {
             Ok(0x123456)
         }
 
-        fn last_block_number(&self) -> anyhow::Result<alloy_primitives::BlockNumber> {
+        async fn last_block_number(&self) -> anyhow::Result<BlockNumber> {
             Ok(0x1234567)
         }
+
+        async fn transaction_gas_price(&self, _: &TxHash) -> anyhow::Result<u128> {
+            Ok(0x200)
+        }
     }
 
-    #[test]
+    #[tokio::test]
-    fn test_encoded_input_uint256() {
+    async fn test_encoded_input_uint256() {
         let raw_metadata = r#"
             [
                 {
@@ -699,7 +821,9 @@ mod tests {
             (Address::ZERO, parsed_abi),
         );
 
-        let encoded = input.encoded_input(&contracts, &MockResolver).unwrap();
+        let resolver = MockResolver;
+        let context = ResolutionContext::new_from_parts(&contracts, None, None, None);
+        let encoded = input.encoded_input(&resolver, context).await.unwrap();
         assert!(encoded.0.starts_with(&selector));
 
         type T = (u64,);
@@ -707,8 +831,8 @@ mod tests {
         assert_eq!(decoded.0, 42);
     }
 
-    #[test]
+    #[tokio::test]
-    fn test_encoded_input_address_with_signature() {
+    async fn test_encoded_input_address_with_signature() {
         let raw_abi = r#"[
         {
             "inputs": [{"name": "recipient", "type": "address"}],
@@ -741,7 +865,9 @@ mod tests {
             (Address::ZERO, parsed_abi),
         );
 
-        let encoded = input.encoded_input(&contracts, &MockResolver).unwrap();
+        let resolver = MockResolver;
+        let context = ResolutionContext::new_from_parts(&contracts, None, None, None);
+        let encoded = input.encoded_input(&resolver, context).await.unwrap();
         assert!(encoded.0.starts_with(&selector));
 
         type T = (alloy_primitives::Address,);
@@ -752,8 +878,8 @@ mod tests {
         );
     }
 
-    #[test]
+    #[tokio::test]
-    fn test_encoded_input_address() {
+    async fn test_encoded_input_address() {
         let raw_abi = r#"[
         {
             "inputs": [{"name": "recipient", "type": "address"}],
@@ -786,7 +912,9 @@ mod tests {
             (Address::ZERO, parsed_abi),
         );
 
-        let encoded = input.encoded_input(&contracts, &MockResolver).unwrap();
+        let resolver = MockResolver;
+        let context = ResolutionContext::new_from_parts(&contracts, None, None, None);
+        let encoded = input.encoded_input(&resolver, context).await.unwrap();
         assert!(encoded.0.starts_with(&selector));
 
         type T = (alloy_primitives::Address,);
@@ -797,50 +925,56 @@ mod tests {
         );
     }
 
-    fn resolve_calldata_item(
+    async fn resolve_calldata_item(
         input: &str,
         deployed_contracts: &HashMap<ContractInstance, (Address, JsonAbi)>,
-        chain_state_provider: &impl ResolverApi,
+        resolver: &impl ResolverApi,
     ) -> anyhow::Result<U256> {
-        CalldataItem::new(input).resolve(deployed_contracts, chain_state_provider)
+        let context = ResolutionContext::new_from_parts(deployed_contracts, None, None, None);
+        CalldataItem::new(input).resolve(resolver, context).await
     }
 
-    #[test]
+    #[tokio::test]
-    fn resolver_can_resolve_chain_id_variable() {
+    async fn resolver_can_resolve_chain_id_variable() {
         // Arrange
         let input = "$CHAIN_ID";
 
         // Act
-        let resolved = resolve_calldata_item(input, &Default::default(), &MockResolver);
+        let resolved = resolve_calldata_item(input, &Default::default(), &MockResolver).await;
 
         // Assert
         let resolved = resolved.expect("Failed to resolve argument");
-        assert_eq!(resolved, U256::from(MockResolver.chain_id().unwrap()))
+        assert_eq!(resolved, U256::from(MockResolver.chain_id().await.unwrap()))
     }
 
-    #[test]
+    #[tokio::test]
-    fn resolver_can_resolve_gas_limit_variable() {
+    async fn resolver_can_resolve_gas_limit_variable() {
         // Arrange
         let input = "$GAS_LIMIT";
 
         // Act
-        let resolved = resolve_calldata_item(input, &Default::default(), &MockResolver);
+        let resolved = resolve_calldata_item(input, &Default::default(), &MockResolver).await;
 
         // Assert
         let resolved = resolved.expect("Failed to resolve argument");
         assert_eq!(
             resolved,
-            U256::from(MockResolver.block_gas_limit(Default::default()).unwrap())
+            U256::from(
+                MockResolver
+                    .block_gas_limit(Default::default())
+                    .await
+                    .unwrap()
+            )
         )
     }
 
-    #[test]
+    #[tokio::test]
-    fn resolver_can_resolve_coinbase_variable() {
+    async fn resolver_can_resolve_coinbase_variable() {
         // Arrange
         let input = "$COINBASE";
 
         // Act
-        let resolved = resolve_calldata_item(input, &Default::default(), &MockResolver);
+        let resolved = resolve_calldata_item(input, &Default::default(), &MockResolver).await;
 
         // Assert
         let resolved = resolved.expect("Failed to resolve argument");
@@ -849,163 +983,192 @@ mod tests {
             U256::from_be_slice(
                 MockResolver
                     .block_coinbase(Default::default())
+                    .await
                     .unwrap()
                     .as_ref()
             )
         )
     }
 
-    #[test]
+    #[tokio::test]
-    fn resolver_can_resolve_block_difficulty_variable() {
+    async fn resolver_can_resolve_block_difficulty_variable() {
         // Arrange
         let input = "$DIFFICULTY";
 
         // Act
-        let resolved = resolve_calldata_item(input, &Default::default(), &MockResolver);
+        let resolved = resolve_calldata_item(input, &Default::default(), &MockResolver).await;
 
         // Assert
         let resolved = resolved.expect("Failed to resolve argument");
         assert_eq!(
             resolved,
-            MockResolver.block_difficulty(Default::default()).unwrap()
+            MockResolver
+                .block_difficulty(Default::default())
+                .await
+                .unwrap()
         )
     }
 
-    #[test]
+    #[tokio::test]
-    fn resolver_can_resolve_block_hash_variable() {
+    async fn resolver_can_resolve_block_base_fee_variable() {
+        // Arrange
+        let input = "$BASE_FEE";
+
+        // Act
+        let resolved = resolve_calldata_item(input, &Default::default(), &MockResolver).await;
+
+        // Assert
+        let resolved = resolved.expect("Failed to resolve argument");
+        assert_eq!(
+            resolved,
+            MockResolver
+                .block_base_fee(Default::default())
+                .await
+                .map(U256::from)
+                .unwrap()
+        )
+    }
+
+    #[tokio::test]
+    async fn resolver_can_resolve_block_hash_variable() {
         // Arrange
         let input = "$BLOCK_HASH";
 
         // Act
-        let resolved = resolve_calldata_item(input, &Default::default(), &MockResolver);
+        let resolved = resolve_calldata_item(input, &Default::default(), &MockResolver).await;
 
         // Assert
         let resolved = resolved.expect("Failed to resolve argument");
         assert_eq!(
             resolved,
-            U256::from_be_bytes(MockResolver.block_hash(Default::default()).unwrap().0)
+            U256::from_be_bytes(MockResolver.block_hash(Default::default()).await.unwrap().0)
         )
     }
 
-    #[test]
+    #[tokio::test]
-    fn resolver_can_resolve_block_number_variable() {
+    async fn resolver_can_resolve_block_number_variable() {
         // Arrange
         let input = "$BLOCK_NUMBER";
 
         // Act
-        let resolved = resolve_calldata_item(input, &Default::default(), &MockResolver);
+        let resolved = resolve_calldata_item(input, &Default::default(), &MockResolver).await;
 
         // Assert
         let resolved = resolved.expect("Failed to resolve argument");
         assert_eq!(
             resolved,
-            U256::from(MockResolver.last_block_number().unwrap())
+            U256::from(MockResolver.last_block_number().await.unwrap())
         )
     }
 
-    #[test]
+    #[tokio::test]
-    fn resolver_can_resolve_block_timestamp_variable() {
+    async fn resolver_can_resolve_block_timestamp_variable() {
         // Arrange
         let input = "$BLOCK_TIMESTAMP";
 
         // Act
-        let resolved = resolve_calldata_item(input, &Default::default(), &MockResolver);
+        let resolved = resolve_calldata_item(input, &Default::default(), &MockResolver).await;
 
         // Assert
         let resolved = resolved.expect("Failed to resolve argument");
         assert_eq!(
             resolved,
-            U256::from(MockResolver.block_timestamp(Default::default()).unwrap())
+            U256::from(
+                MockResolver
+                    .block_timestamp(Default::default())
+                    .await
+                    .unwrap()
+            )
         )
     }
 
-    #[test]
+    #[tokio::test]
-    fn simple_addition_can_be_resolved() {
+    async fn simple_addition_can_be_resolved() {
         // Arrange
         let input = "2 4 +";
 
         // Act
-        let resolved = resolve_calldata_item(input, &Default::default(), &MockResolver);
+        let resolved = resolve_calldata_item(input, &Default::default(), &MockResolver).await;
 
         // Assert
         let resolved = resolved.expect("Failed to resolve argument");
         assert_eq!(resolved, U256::from(6));
     }
 
-    #[test]
+    #[tokio::test]
-    fn simple_subtraction_can_be_resolved() {
+    async fn simple_subtraction_can_be_resolved() {
         // Arrange
         let input = "4 2 -";
 
         // Act
-        let resolved = resolve_calldata_item(input, &Default::default(), &MockResolver);
+        let resolved = resolve_calldata_item(input, &Default::default(), &MockResolver).await;
 
         // Assert
         let resolved = resolved.expect("Failed to resolve argument");
         assert_eq!(resolved, U256::from(2));
     }
 
-    #[test]
+    #[tokio::test]
-    fn simple_multiplication_can_be_resolved() {
+    async fn simple_multiplication_can_be_resolved() {
         // Arrange
         let input = "4 2 *";
 
         // Act
-        let resolved = resolve_calldata_item(input, &Default::default(), &MockResolver);
+        let resolved = resolve_calldata_item(input, &Default::default(), &MockResolver).await;
 
         // Assert
         let resolved = resolved.expect("Failed to resolve argument");
         assert_eq!(resolved, U256::from(8));
     }
 
-    #[test]
+    #[tokio::test]
-    fn simple_division_can_be_resolved() {
+    async fn simple_division_can_be_resolved() {
         // Arrange
         let input = "4 2 /";
 
         // Act
-        let resolved = resolve_calldata_item(input, &Default::default(), &MockResolver);
+        let resolved = resolve_calldata_item(input, &Default::default(), &MockResolver).await;
 
         // Assert
         let resolved = resolved.expect("Failed to resolve argument");
         assert_eq!(resolved, U256::from(2));
     }
 
-    #[test]
+    #[tokio::test]
-    fn arithmetic_errors_are_not_panics() {
+    async fn arithmetic_errors_are_not_panics() {
         // Arrange
         let input = "4 0 /";
 
         // Act
-        let resolved = resolve_calldata_item(input, &Default::default(), &MockResolver);
+        let resolved = resolve_calldata_item(input, &Default::default(), &MockResolver).await;
 
         // Assert
         assert!(resolved.is_err())
     }
 
-    #[test]
+    #[tokio::test]
-    fn arithmetic_with_resolution_works() {
+    async fn arithmetic_with_resolution_works() {
         // Arrange
         let input = "$BLOCK_NUMBER 10 +";
 
         // Act
-        let resolved = resolve_calldata_item(input, &Default::default(), &MockResolver);
+        let resolved = resolve_calldata_item(input, &Default::default(), &MockResolver).await;
 
         // Assert
         let resolved = resolved.expect("Failed to resolve argument");
         assert_eq!(
             resolved,
-            U256::from(MockResolver.last_block_number().unwrap() + 10)
+            U256::from(MockResolver.last_block_number().await.unwrap() + 10)
         );
     }
 
-    #[test]
+    #[tokio::test]
-    fn incorrect_number_of_arguments_errors() {
+    async fn incorrect_number_of_arguments_errors() {
         // Arrange
         let input = "$BLOCK_NUMBER 10 + +";
 
         // Act
-        let resolved = resolve_calldata_item(input, &Default::default(), &MockResolver);
+        let resolved = resolve_calldata_item(input, &Default::default(), &MockResolver).await;
 
         // Assert
         assert!(resolved.is_err())

crates/format/src/metadata.rs

@@ -1,4 +1,5 @@
 use std::{
+    cmp::Ordering,
     collections::BTreeMap,
     fmt::Display,
     fs::{File, read_to_string},
@@ -9,7 +10,8 @@ use std::{
 
 use serde::{Deserialize, Serialize};
 
-use revive_dt_common::macros::define_wrapper_type;
+use revive_common::EVMVersion;
+use revive_dt_common::{iterators::FilesWithExtensionIterator, macros::define_wrapper_type};
 
 use crate::{
     case::Case,
@@ -43,16 +45,36 @@ impl Deref for MetadataFile {
     }
 }
 
-#[derive(Debug, Default, Deserialize, Clone, Eq, PartialEq)]
+#[derive(Debug, Default, Serialize, Deserialize, Clone, Eq, PartialEq)]
 pub struct Metadata {
-    pub targets: Option<Vec<String>>,
+    /// A comment on the test case that's added for human-readability.
-    pub cases: Vec<Case>,
+    #[serde(skip_serializing_if = "Option::is_none")]
-    pub contracts: Option<BTreeMap<ContractInstance, ContractPathAndIdent>>,
+    pub comment: Option<String>,
-    // TODO: Convert into wrapper types for clarity.
+
-    pub libraries: Option<BTreeMap<PathBuf, BTreeMap<ContractIdent, ContractInstance>>>,
+    #[serde(skip_serializing_if = "Option::is_none")]
     pub ignore: Option<bool>,
+
+    #[serde(skip_serializing_if = "Option::is_none")]
+    pub targets: Option<Vec<String>>,
+
+    pub cases: Vec<Case>,
+
+    #[serde(skip_serializing_if = "Option::is_none")]
+    pub contracts: Option<BTreeMap<ContractInstance, ContractPathAndIdent>>,
+
+    #[serde(skip_serializing_if = "Option::is_none")]
+    pub libraries: Option<BTreeMap<PathBuf, BTreeMap<ContractIdent, ContractInstance>>>,
+
+    #[serde(skip_serializing_if = "Option::is_none")]
     pub modes: Option<Vec<Mode>>,
+
+    #[serde(skip_serializing_if = "Option::is_none")]
     pub file_path: Option<PathBuf>,
+
+    /// This field specifies an EVM version requirement that the test case has where the test might
+    /// be run of the evm version of the nodes match the evm version specified here.
+    #[serde(skip_serializing_if = "Option::is_none")]
+    pub required_evm_version: Option<EvmVersionRequirement>,
 }
 
 impl Metadata {
@@ -193,7 +215,7 @@ impl Metadata {
                 metadata.file_path = Some(path.to_path_buf());
                 metadata.contracts = Some(
                     [(
-                        ContractInstance::new("test"),
+                        ContractInstance::new("Test"),
                         ContractPathAndIdent {
                             contract_source_path: path.to_path_buf(),
                             contract_ident: ContractIdent::new("Test"),
@@ -212,6 +234,29 @@ impl Metadata {
             }
         }
     }
+
+    /// Returns an iterator over all of the solidity files that needs to be compiled for this
+    /// [`Metadata`] object
+    ///
+    /// Note: if the metadata is contained within a solidity file then this is the only file that
+    /// we wish to compile since this is a self-contained test. Otherwise, if it's a JSON file
+    /// then we need to compile all of the contracts that are in the directory since imports are
+    /// allowed in there.
+    pub fn files_to_compile(&self) -> anyhow::Result<Box<dyn Iterator<Item = PathBuf>>> {
+        let Some(ref metadata_file_path) = self.file_path else {
+            anyhow::bail!("The metadata file path is not defined");
+        };
+        if metadata_file_path
+            .extension()
+            .is_some_and(|extension| extension.eq_ignore_ascii_case("sol"))
+        {
+            Ok(Box::new(std::iter::once(metadata_file_path.clone())))
+        } else {
+            Ok(Box::new(
+                FilesWithExtensionIterator::new(self.directory()?).with_allowed_extension("sol"),
+            ))
+        }
+    }
 }
 
 define_wrapper_type!(
@@ -287,17 +332,23 @@ impl FromStr for ContractPathAndIdent {
                 identifier = Some(next_item.to_owned())
             }
         }
-        let Some(path) = path else {
+        match (path, identifier) {
-            anyhow::bail!("Path is not defined");
+            (Some(path), Some(identifier)) => Ok(Self {
-        };
+                contract_source_path: PathBuf::from(path),
-        let Some(identifier) = identifier else {
+                contract_ident: ContractIdent::new(identifier),
-            anyhow::bail!("Contract identifier is not defined")
+            }),
+            (None, Some(path)) | (Some(path), None) => {
+                let Some(identifier) = path.split(".").next().map(ToOwned::to_owned) else {
+                    anyhow::bail!("Failed to find identifier");
                 };
                 Ok(Self {
                     contract_source_path: PathBuf::from(path),
                     contract_ident: ContractIdent::new(identifier),
                 })
             }
+            (None, None) => anyhow::bail!("Failed to find the path and identifier"),
+        }
+    }
 }
 
 impl TryFrom<String> for ContractPathAndIdent {
@@ -314,6 +365,131 @@ impl From<ContractPathAndIdent> for String {
     }
 }
 
+/// An EVM version requirement that the test case has. This gets serialized and
+/// deserialized from and into [`String`].
+#[derive(Clone, Copy, Debug, PartialEq, Eq, PartialOrd, Ord, Hash, Serialize, Deserialize)]
+#[serde(try_from = "String", into = "String")]
+pub struct EvmVersionRequirement {
+    ordering: Ordering,
+    or_equal: bool,
+    evm_version: EVMVersion,
+}
+
+impl EvmVersionRequirement {
+    pub fn new_greater_than_or_equals(version: EVMVersion) -> Self {
+        Self {
+            ordering: Ordering::Greater,
+            or_equal: true,
+            evm_version: version,
+        }
+    }
+
+    pub fn new_greater_than(version: EVMVersion) -> Self {
+        Self {
+            ordering: Ordering::Greater,
+            or_equal: false,
+            evm_version: version,
+        }
+    }
+
+    pub fn new_equals(version: EVMVersion) -> Self {
+        Self {
+            ordering: Ordering::Equal,
+            or_equal: false,
+            evm_version: version,
+        }
+    }
+
+    pub fn new_less_than(version: EVMVersion) -> Self {
+        Self {
+            ordering: Ordering::Less,
+            or_equal: false,
+            evm_version: version,
+        }
+    }
+
+    pub fn new_less_than_or_equals(version: EVMVersion) -> Self {
+        Self {
+            ordering: Ordering::Less,
+            or_equal: true,
+            evm_version: version,
+        }
+    }
+
+    pub fn matches(&self, other: &EVMVersion) -> bool {
+        let ordering = other.cmp(&self.evm_version);
+        ordering == self.ordering || (self.or_equal && matches!(ordering, Ordering::Equal))
+    }
+}
+
+impl Display for EvmVersionRequirement {
+    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
+        let Self {
+            ordering,
+            or_equal,
+            evm_version,
+        } = self;
+        match ordering {
+            Ordering::Less => write!(f, "<")?,
+            Ordering::Equal => write!(f, "=")?,
+            Ordering::Greater => write!(f, ">")?,
+        }
+        if *or_equal && !matches!(ordering, Ordering::Equal) {
+            write!(f, "=")?;
+        }
+        write!(f, "{evm_version}")
+    }
+}
+
+impl FromStr for EvmVersionRequirement {
+    type Err = anyhow::Error;
+
+    fn from_str(s: &str) -> Result<Self, Self::Err> {
+        match s.as_bytes() {
+            [b'>', b'=', remaining @ ..] => Ok(Self {
+                ordering: Ordering::Greater,
+                or_equal: true,
+                evm_version: str::from_utf8(remaining)?.try_into()?,
+            }),
+            [b'>', remaining @ ..] => Ok(Self {
+                ordering: Ordering::Greater,
+                or_equal: false,
+                evm_version: str::from_utf8(remaining)?.try_into()?,
+            }),
+            [b'<', b'=', remaining @ ..] => Ok(Self {
+                ordering: Ordering::Less,
+                or_equal: true,
+                evm_version: str::from_utf8(remaining)?.try_into()?,
+            }),
+            [b'<', remaining @ ..] => Ok(Self {
+                ordering: Ordering::Less,
+                or_equal: false,
+                evm_version: str::from_utf8(remaining)?.try_into()?,
+            }),
+            [b'=', remaining @ ..] => Ok(Self {
+                ordering: Ordering::Equal,
+                or_equal: false,
+                evm_version: str::from_utf8(remaining)?.try_into()?,
+            }),
+            _ => anyhow::bail!("Invalid EVM version requirement {s}"),
+        }
+    }
+}
+
+impl TryFrom<String> for EvmVersionRequirement {
+    type Error = anyhow::Error;
+
+    fn try_from(value: String) -> Result<Self, Self::Error> {
+        value.parse()
+    }
+}
+
+impl From<EvmVersionRequirement> for String {
+    fn from(value: EvmVersionRequirement) -> Self {
+        value.to_string()
+    }
+}
+
 #[cfg(test)]
 mod test {
     use super::*;

crates/format/src/mode.rs

@@ -1,3 +1,4 @@
+use revive_dt_common::types::VersionOrRequirement;
 use semver::Version;
 use serde::de::Deserializer;
 use serde::{Deserialize, Serialize};
@@ -15,6 +16,7 @@ pub struct SolcMode {
     pub solc_version: Option<semver::VersionReq>,
     solc_optimize: Option<bool>,
     pub llvm_optimizer_settings: Vec<String>,
+    mode_string: String,
 }
 
 impl SolcMode {
@@ -28,7 +30,10 @@ impl SolcMode {
     /// - A solc `SemVer version requirement` string
     /// - One or more `-OX` where X is a supposed to be an LLVM opt mode
     pub fn parse_from_mode_string(mode_string: &str) -> Option<Self> {
-        let mut result = Self::default();
+        let mut result = Self {
+            mode_string: mode_string.to_string(),
+            ..Default::default()
+        };
 
         let mut parts = mode_string.trim().split(" ");
 
@@ -78,6 +83,15 @@ impl SolcMode {
 
         None
     }
+
+    /// Resolves the [`SolcMode`]'s solidity version requirement into a [`VersionOrRequirement`] if
+    /// the requirement is present on the object. Otherwise, the passed default version is used.
+    pub fn compiler_version_to_use(&self, default: Version) -> VersionOrRequirement {
+        match self.solc_version {
+            Some(ref requirement) => requirement.clone().into(),
+            None => default.into(),
+        }
+    }
 }
 
 impl<'de> Deserialize<'de> for Mode {
@@ -94,3 +108,16 @@ impl<'de> Deserialize<'de> for Mode {
         Ok(Self::Unknown(mode_string))
     }
 }
+
+impl Serialize for Mode {
+    fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>
+    where
+        S: serde::Serializer,
+    {
+        let string = match self {
+            Mode::Solidity(solc_mode) => &solc_mode.mode_string,
+            Mode::Unknown(string) => string,
+        };
+        string.serialize(serializer)
+    }
+}

crates/format/src/traits.rs

@@ -1,30 +1,150 @@
+use std::collections::HashMap;
+
 use alloy::eips::BlockNumberOrTag;
+use alloy::json_abi::JsonAbi;
 use alloy::primitives::{Address, BlockHash, BlockNumber, BlockTimestamp, ChainId, U256};
+use alloy_primitives::TxHash;
 use anyhow::Result;
 
+use crate::metadata::ContractInstance;
+
 /// A trait of the interface are required to implement to be used by the resolution logic that this
 /// crate implements to go from string calldata and into the bytes calldata.
 pub trait ResolverApi {
     /// Returns the ID of the chain that the node is on.
-    fn chain_id(&self) -> Result<ChainId>;
+    fn chain_id(&self) -> impl Future<Output = Result<ChainId>>;
+
+    /// Returns the gas price for the specified transaction.
+    fn transaction_gas_price(&self, tx_hash: &TxHash) -> impl Future<Output = Result<u128>>;
 
     // TODO: This is currently a u128 due to Kitchensink needing more than 64 bits for its gas limit
     // when we implement the changes to the gas we need to adjust this to be a u64.
     /// Returns the gas limit of the specified block.
-    fn block_gas_limit(&self, number: BlockNumberOrTag) -> Result<u128>;
+    fn block_gas_limit(&self, number: BlockNumberOrTag) -> impl Future<Output = Result<u128>>;
 
     /// Returns the coinbase of the specified block.
-    fn block_coinbase(&self, number: BlockNumberOrTag) -> Result<Address>;
+    fn block_coinbase(&self, number: BlockNumberOrTag) -> impl Future<Output = Result<Address>>;
 
     /// Returns the difficulty of the specified block.
-    fn block_difficulty(&self, number: BlockNumberOrTag) -> Result<U256>;
+    fn block_difficulty(&self, number: BlockNumberOrTag) -> impl Future<Output = Result<U256>>;
+
+    /// Returns the base fee of the specified block.
+    fn block_base_fee(&self, number: BlockNumberOrTag) -> impl Future<Output = Result<u64>>;
 
     /// Returns the hash of the specified block.
-    fn block_hash(&self, number: BlockNumberOrTag) -> Result<BlockHash>;
+    fn block_hash(&self, number: BlockNumberOrTag) -> impl Future<Output = Result<BlockHash>>;
 
     /// Returns the timestamp of the specified block,
-    fn block_timestamp(&self, number: BlockNumberOrTag) -> Result<BlockTimestamp>;
+    fn block_timestamp(
+        &self,
+        number: BlockNumberOrTag,
+    ) -> impl Future<Output = Result<BlockTimestamp>>;
 
     /// Returns the number of the last block.
-    fn last_block_number(&self) -> Result<BlockNumber>;
+    fn last_block_number(&self) -> impl Future<Output = Result<BlockNumber>>;
+}
+
+#[derive(Clone, Copy, Debug, Default)]
+/// Contextual information required by the code that's performing the resolution.
+pub struct ResolutionContext<'a> {
+    /// When provided the contracts provided here will be used for resolutions.
+    deployed_contracts: Option<&'a HashMap<ContractInstance, (Address, JsonAbi)>>,
+
+    /// When provided the variables in here will be used for performing resolutions.
+    variables: Option<&'a HashMap<String, U256>>,
+
+    /// When provided this block number will be treated as the tip of the chain.
+    block_number: Option<&'a BlockNumber>,
+
+    /// When provided the resolver will use this transaction hash for all of its resolutions.
+    transaction_hash: Option<&'a TxHash>,
+}
+
+impl<'a> ResolutionContext<'a> {
+    pub fn new() -> Self {
+        Default::default()
+    }
+
+    pub fn new_from_parts(
+        deployed_contracts: impl Into<Option<&'a HashMap<ContractInstance, (Address, JsonAbi)>>>,
+        variables: impl Into<Option<&'a HashMap<String, U256>>>,
+        block_number: impl Into<Option<&'a BlockNumber>>,
+        transaction_hash: impl Into<Option<&'a TxHash>>,
+    ) -> Self {
+        Self {
+            deployed_contracts: deployed_contracts.into(),
+            variables: variables.into(),
+            block_number: block_number.into(),
+            transaction_hash: transaction_hash.into(),
+        }
+    }
+
+    pub fn with_deployed_contracts(
+        mut self,
+        deployed_contracts: impl Into<Option<&'a HashMap<ContractInstance, (Address, JsonAbi)>>>,
+    ) -> Self {
+        self.deployed_contracts = deployed_contracts.into();
+        self
+    }
+
+    pub fn with_variables(
+        mut self,
+        variables: impl Into<Option<&'a HashMap<String, U256>>>,
+    ) -> Self {
+        self.variables = variables.into();
+        self
+    }
+
+    pub fn with_block_number(mut self, block_number: impl Into<Option<&'a BlockNumber>>) -> Self {
+        self.block_number = block_number.into();
+        self
+    }
+
+    pub fn with_transaction_hash(
+        mut self,
+        transaction_hash: impl Into<Option<&'a TxHash>>,
+    ) -> Self {
+        self.transaction_hash = transaction_hash.into();
+        self
+    }
+
+    pub fn resolve_block_number(&self, number: BlockNumberOrTag) -> BlockNumberOrTag {
+        match self.block_number {
+            Some(block_number) => match number {
+                BlockNumberOrTag::Latest => BlockNumberOrTag::Number(*block_number),
+                n @ (BlockNumberOrTag::Finalized
+                | BlockNumberOrTag::Safe
+                | BlockNumberOrTag::Earliest
+                | BlockNumberOrTag::Pending
+                | BlockNumberOrTag::Number(_)) => n,
+            },
+            None => number,
+        }
+    }
+
+    pub fn deployed_contract(&self, instance: &ContractInstance) -> Option<&(Address, JsonAbi)> {
+        self.deployed_contracts
+            .and_then(|deployed_contracts| deployed_contracts.get(instance))
+    }
+
+    pub fn deployed_contract_address(&self, instance: &ContractInstance) -> Option<&Address> {
+        self.deployed_contract(instance).map(|(a, _)| a)
+    }
+
+    pub fn deployed_contract_abi(&self, instance: &ContractInstance) -> Option<&JsonAbi> {
+        self.deployed_contract(instance).map(|(_, a)| a)
+    }
+
+    pub fn variable(&self, name: impl AsRef<str>) -> Option<&U256> {
+        self.variables
+            .and_then(|variables| variables.get(name.as_ref()))
+    }
+
+    pub fn tip_block_number(&self) -> Option<&'a BlockNumber> {
+        self.block_number
+    }
+
+    pub fn transaction_hash(&self) -> Option<&'a TxHash> {
+        self.transaction_hash
+    }
 }

crates/node-interaction/src/lib.rs

@@ -1,21 +1,35 @@
 //! This crate implements all node interactions.
 
+use alloy::primitives::{Address, StorageKey, U256};
 use alloy::rpc::types::trace::geth::{DiffMode, GethDebugTracingOptions, GethTrace};
-use alloy::rpc::types::{TransactionReceipt, TransactionRequest};
+use alloy::rpc::types::{EIP1186AccountProofResponse, TransactionReceipt, TransactionRequest};
 use anyhow::Result;
 
 /// An interface for all interactions with Ethereum compatible nodes.
 pub trait EthereumNode {
     /// Execute the [TransactionRequest] and return a [TransactionReceipt].
-    fn execute_transaction(&self, transaction: TransactionRequest) -> Result<TransactionReceipt>;
+    fn execute_transaction(
+        &self,
+        transaction: TransactionRequest,
+    ) -> impl Future<Output = Result<TransactionReceipt>>;
 
     /// Trace the transaction in the [TransactionReceipt] and return a [GethTrace].
     fn trace_transaction(
         &self,
         receipt: &TransactionReceipt,
         trace_options: GethDebugTracingOptions,
-    ) -> Result<GethTrace>;
+    ) -> impl Future<Output = Result<GethTrace>>;
 
     /// Returns the state diff of the transaction hash in the [TransactionReceipt].
-    fn state_diff(&self, receipt: &TransactionReceipt) -> Result<DiffMode>;
+    fn state_diff(&self, receipt: &TransactionReceipt) -> impl Future<Output = Result<DiffMode>>;
+
+    /// Returns the balance of the provided [`Address`] back.
+    fn balance_of(&self, address: Address) -> impl Future<Output = Result<U256>>;
+
+    /// Returns the latest storage proof of the provided [`Address`]
+    fn latest_state_proof(
+        &self,
+        address: Address,
+        keys: Vec<StorageKey>,
+    ) -> impl Future<Output = Result<EIP1186AccountProofResponse>>;
 }

crates/node/Cargo.toml

@@ -14,6 +14,7 @@ alloy = { workspace = true }
 tracing = { workspace = true }
 tokio = { workspace = true }
 
+revive-common = { workspace = true }
 revive-dt-common = { workspace = true }
 revive-dt-config = { workspace = true }
 revive-dt-format = { workspace = true }

crates/node/src/geth.rs

@@ -3,9 +3,13 @@
 use std::{
     fs::{File, OpenOptions, create_dir_all, remove_dir_all},
     io::{BufRead, BufReader, Read, Write},
+    ops::ControlFlow,
     path::PathBuf,
     process::{Child, Command, Stdio},
-    sync::atomic::{AtomicU32, Ordering},
+    sync::{
+        Arc,
+        atomic::{AtomicU32, Ordering},
+    },
     time::{Duration, Instant},
 };
 
@@ -13,23 +17,28 @@ use alloy::{
     eips::BlockNumberOrTag,
     genesis::{Genesis, GenesisAccount},
     network::{Ethereum, EthereumWallet, NetworkWallet},
-    primitives::{Address, BlockHash, BlockNumber, BlockTimestamp, FixedBytes, U256},
+    primitives::{
+        Address, BlockHash, BlockNumber, BlockTimestamp, FixedBytes, StorageKey, TxHash, U256,
+    },
     providers::{
         Provider, ProviderBuilder,
         ext::DebugApi,
         fillers::{CachedNonceManager, ChainIdFiller, FillProvider, NonceFiller, TxFiller},
     },
     rpc::types::{
-        TransactionReceipt, TransactionRequest,
+        EIP1186AccountProofResponse, TransactionReceipt, TransactionRequest,
         trace::geth::{DiffMode, GethDebugTracingOptions, PreStateConfig, PreStateFrame},
     },
     signers::local::PrivateKeySigner,
 };
-use revive_dt_common::concepts::BlockingExecutor;
+use anyhow::Context;
+use revive_common::EVMVersion;
+use tracing::{Instrument, Level};
+
+use revive_dt_common::{fs::clear_directory, futures::poll};
 use revive_dt_config::Arguments;
 use revive_dt_format::traits::ResolverApi;
 use revive_dt_node_interaction::EthereumNode;
-use tracing::Level;
 
 use crate::{Node, common::FallbackGasFiller, constants::INITIAL_BALANCE};
 
@@ -43,7 +52,7 @@ static NODE_COUNT: AtomicU32 = AtomicU32::new(0);
 ///
 /// Prunes the child process and the base directory on drop.
 #[derive(Debug)]
-pub struct Instance {
+pub struct GethNode {
     connection_string: String,
     base_directory: PathBuf,
     data_directory: PathBuf,
@@ -62,7 +71,7 @@ pub struct Instance {
     logs_file_to_flush: Vec<File>,
 }
 
-impl Instance {
+impl GethNode {
     const BASE_DIRECTORY: &str = "geth";
     const DATA_DIRECTORY: &str = "data";
     const LOGS_DIRECTORY: &str = "logs";
@@ -77,10 +86,17 @@ impl Instance {
     const GETH_STDERR_LOG_FILE_NAME: &str = "node_stderr.log";
 
     const TRANSACTION_INDEXING_ERROR: &str = "transaction indexing is in progress";
+    const TRANSACTION_TRACING_ERROR: &str = "historical state not available in path scheme yet";
+
+    const RECEIPT_POLLING_DURATION: Duration = Duration::from_secs(5 * 60);
+    const TRACE_POLLING_DURATION: Duration = Duration::from_secs(60);
 
     /// Create the node directory and call `geth init` to configure the genesis.
-    #[tracing::instrument(skip_all, fields(geth_node_id = self.id))]
+    #[tracing::instrument(level = "info", skip_all, fields(geth_node_id = self.id))]
     fn init(&mut self, genesis: String) -> anyhow::Result<&mut Self> {
+        let _ = clear_directory(&self.base_directory);
+        let _ = clear_directory(&self.logs_directory);
+
         create_dir_all(&self.base_directory)?;
         create_dir_all(&self.logs_directory)?;
 
@@ -99,6 +115,8 @@ impl Instance {
         serde_json::to_writer(File::create(&genesis_path)?, &genesis)?;
 
         let mut child = Command::new(&self.geth)
+            .arg("--state.scheme")
+            .arg("hash")
             .arg("init")
             .arg("--datadir")
             .arg(&self.data_directory)
@@ -124,7 +142,7 @@ impl Instance {
     /// Spawn the go-ethereum node child process.
     ///
     /// [Instance::init] must be called prior.
-    #[tracing::instrument(skip_all, fields(geth_node_id = self.id))]
+    #[tracing::instrument(level = "info", skip_all, fields(geth_node_id = self.id))]
     fn spawn_process(&mut self) -> anyhow::Result<&mut Self> {
         // This is the `OpenOptions` that we wish to use for all of the log files that we will be
         // opening in this method. We need to construct it in this way to:
@@ -152,6 +170,16 @@ impl Instance {
             .arg("--nodiscover")
             .arg("--maxpeers")
             .arg("0")
+            .arg("--txlookuplimit")
+            .arg("0")
+            .arg("--cache.blocklogs")
+            .arg("512")
+            .arg("--state.scheme")
+            .arg("hash")
+            .arg("--syncmode")
+            .arg("full")
+            .arg("--gcmode")
+            .arg("archive")
             .stderr(stderr_logs_file.try_clone()?)
             .stdout(stdout_logs_file.try_clone()?)
             .spawn()?
@@ -172,7 +200,7 @@ impl Instance {
     /// Wait for the g-ethereum node child process getting ready.
     ///
     /// [Instance::spawn_process] must be called priorly.
-    #[tracing::instrument(skip_all, fields(geth_node_id = self.id))]
+    #[tracing::instrument(level = "info", skip_all, fields(geth_node_id = self.id))]
     fn wait_ready(&mut self) -> anyhow::Result<&mut Self> {
         let start_time = Instant::now();
 
@@ -240,25 +268,18 @@ impl Instance {
     }
 }
 
-impl EthereumNode for Instance {
+impl EthereumNode for GethNode {
-    #[tracing::instrument(skip_all, fields(geth_node_id = self.id))]
+    #[tracing::instrument(level = "info", skip_all, fields(geth_node_id = self.id), err)]
-    fn execute_transaction(
+    async fn execute_transaction(
         &self,
         transaction: TransactionRequest,
     ) -> anyhow::Result<alloy::rpc::types::TransactionReceipt> {
-        let provider = self.provider();
+        let span = tracing::debug_span!("Submitting transaction", ?transaction);
-        BlockingExecutor::execute(async move {
-            let outer_span = tracing::debug_span!("Submitting transaction", ?transaction);
-            let _outer_guard = outer_span.enter();
-
-            let provider = provider.await?;
-
-            let pending_transaction = provider.send_transaction(transaction).await?;
-            let transaction_hash = pending_transaction.tx_hash();
-
-            let span = tracing::info_span!("Awaiting transaction receipt", ?transaction_hash);
         let _guard = span.enter();
 
+        let provider = Arc::new(self.provider().await?);
+        let transaction_hash = *provider.send_transaction(transaction).await?.tx_hash();
+
         // The following is a fix for the "transaction indexing is in progress" error that we
         // used to get. You can find more information on this in the following GH issue in geth
         // https://github.com/ethereum/go-ethereum/issues/28877. To summarize what's going on,
@@ -277,160 +298,203 @@ impl EthereumNode for Instance {
         // allow for a larger wait time. Therefore, in here we allow for 5 minutes of waiting
         // with exponential backoff each time we attempt to get the receipt and find that it's
         // not available.
-            let mut retries = 0;
+        poll(
-            let mut total_wait_duration = Duration::from_secs(0);
+            Self::RECEIPT_POLLING_DURATION,
-            let max_allowed_wait_duration = Duration::from_secs(5 * 60);
+            Default::default(),
-            loop {
+            move || {
-                if total_wait_duration >= max_allowed_wait_duration {
+                let provider = provider.clone();
-                    tracing::error!(
+                async move {
-                        ?total_wait_duration,
+                    match provider.get_transaction_receipt(transaction_hash).await {
-                        ?max_allowed_wait_duration,
+                        Ok(Some(receipt)) => Ok(ControlFlow::Break(receipt)),
-                        retry_count = retries,
+                        Ok(None) => Ok(ControlFlow::Continue(())),
-                        "Failed to get receipt after polling for it"
-                    );
-                    anyhow::bail!(
-                        "Polled for receipt for {total_wait_duration:?} but failed to get it"
-                    );
-                }
-
-                match provider.get_transaction_receipt(*transaction_hash).await {
-                    Ok(Some(receipt)) => break Ok(receipt),
-                    Ok(None) => {}
                         Err(error) => {
                             let error_string = error.to_string();
-                        if !error_string.contains(Self::TRANSACTION_INDEXING_ERROR) {
+                            match error_string.contains(Self::TRANSACTION_INDEXING_ERROR) {
-                            break Err(error.into());
+                                true => Ok(ControlFlow::Continue(())),
+                                false => Err(error.into()),
                             }
                         }
-                };
-
-                let next_wait_duration = Duration::from_secs(2u64.pow(retries))
-                    .min(max_allowed_wait_duration - total_wait_duration);
-                total_wait_duration += next_wait_duration;
-                retries += 1;
-
-                tokio::time::sleep(next_wait_duration).await;
                     }
-        })?
+                }
+            },
+        )
+        .instrument(tracing::info_span!(
+            "Awaiting transaction receipt",
+            ?transaction_hash
+        ))
+        .await
     }
 
-    #[tracing::instrument(skip_all, fields(geth_node_id = self.id))]
+    #[tracing::instrument(level = "info", skip_all, fields(geth_node_id = self.id), err)]
-    fn trace_transaction(
+    async fn trace_transaction(
         &self,
         transaction: &TransactionReceipt,
         trace_options: GethDebugTracingOptions,
     ) -> anyhow::Result<alloy::rpc::types::trace::geth::GethTrace> {
-        let tx_hash = transaction.transaction_hash;
+        let provider = Arc::new(self.provider().await?);
-        let provider = self.provider();
+        poll(
-        BlockingExecutor::execute(async move {
+            Self::TRACE_POLLING_DURATION,
-            Ok(provider
+            Default::default(),
-                .await?
+            move || {
-                .debug_trace_transaction(tx_hash, trace_options)
+                let provider = provider.clone();
-                .await?)
+                let trace_options = trace_options.clone();
-        })?
+                async move {
+                    match provider
+                        .debug_trace_transaction(transaction.transaction_hash, trace_options)
+                        .await
+                    {
+                        Ok(trace) => Ok(ControlFlow::Break(trace)),
+                        Err(error) => {
+                            let error_string = error.to_string();
+                            match error_string.contains(Self::TRANSACTION_TRACING_ERROR) {
+                                true => Ok(ControlFlow::Continue(())),
+                                false => Err(error.into()),
+                            }
+                        }
+                    }
+                }
+            },
+        )
+        .await
     }
 
-    #[tracing::instrument(skip_all, fields(geth_node_id = self.id))]
+    #[tracing::instrument(level = "info", skip_all, fields(geth_node_id = self.id), err)]
-    fn state_diff(&self, transaction: &TransactionReceipt) -> anyhow::Result<DiffMode> {
+    async fn state_diff(&self, transaction: &TransactionReceipt) -> anyhow::Result<DiffMode> {
         let trace_options = GethDebugTracingOptions::prestate_tracer(PreStateConfig {
             diff_mode: Some(true),
             disable_code: None,
             disable_storage: None,
         });
         match self
-            .trace_transaction(transaction, trace_options)?
+            .trace_transaction(transaction, trace_options)
+            .await?
             .try_into_pre_state_frame()?
         {
             PreStateFrame::Diff(diff) => Ok(diff),
             _ => anyhow::bail!("expected a diff mode trace"),
         }
     }
-}
 
-impl ResolverApi for Instance {
+    #[tracing::instrument(level = "info", skip_all, fields(geth_node_id = self.id), err)]
-    #[tracing::instrument(skip_all, fields(geth_node_id = self.id))]
+    async fn balance_of(&self, address: Address) -> anyhow::Result<U256> {
-    fn chain_id(&self) -> anyhow::Result<alloy::primitives::ChainId> {
+        self.provider()
-        let provider = self.provider();
+            .await?
-        BlockingExecutor::execute(async move {
+            .get_balance(address)
-            provider.await?.get_chain_id().await.map_err(Into::into)
+            .await
-        })?
+            .map_err(Into::into)
     }
 
-    #[tracing::instrument(skip_all, fields(geth_node_id = self.id))]
+    #[tracing::instrument(level = "info", skip_all, fields(geth_node_id = self.id), err)]
-    fn block_gas_limit(&self, number: BlockNumberOrTag) -> anyhow::Result<u128> {
+    async fn latest_state_proof(
-        let provider = self.provider();
+        &self,
-        BlockingExecutor::execute(async move {
+        address: Address,
-            provider
+        keys: Vec<StorageKey>,
+    ) -> anyhow::Result<EIP1186AccountProofResponse> {
+        self.provider()
+            .await?
+            .get_proof(address, keys)
+            .latest()
+            .await
+            .map_err(Into::into)
+    }
+}
+
+impl ResolverApi for GethNode {
+    #[tracing::instrument(level = "info", skip_all, fields(geth_node_id = self.id), err)]
+    async fn chain_id(&self) -> anyhow::Result<alloy::primitives::ChainId> {
+        self.provider()
+            .await?
+            .get_chain_id()
+            .await
+            .map_err(Into::into)
+    }
+
+    #[tracing::instrument(level = "info", skip_all, fields(geth_node_id = self.id), err)]
+    async fn transaction_gas_price(&self, tx_hash: &TxHash) -> anyhow::Result<u128> {
+        self.provider()
+            .await?
+            .get_transaction_receipt(*tx_hash)
+            .await?
+            .context("Failed to get the transaction receipt")
+            .map(|receipt| receipt.effective_gas_price)
+    }
+
+    #[tracing::instrument(level = "info", skip_all, fields(geth_node_id = self.id), err)]
+    async fn block_gas_limit(&self, number: BlockNumberOrTag) -> anyhow::Result<u128> {
+        self.provider()
             .await?
             .get_block_by_number(number)
             .await?
             .ok_or(anyhow::Error::msg("Blockchain has no blocks"))
             .map(|block| block.header.gas_limit as _)
-        })?
     }
 
-    #[tracing::instrument(skip_all, fields(geth_node_id = self.id))]
+    #[tracing::instrument(level = "info", skip_all, fields(geth_node_id = self.id), err)]
-    fn block_coinbase(&self, number: BlockNumberOrTag) -> anyhow::Result<Address> {
+    async fn block_coinbase(&self, number: BlockNumberOrTag) -> anyhow::Result<Address> {
-        let provider = self.provider();
+        self.provider()
-        BlockingExecutor::execute(async move {
-            provider
             .await?
             .get_block_by_number(number)
             .await?
             .ok_or(anyhow::Error::msg("Blockchain has no blocks"))
             .map(|block| block.header.beneficiary)
-        })?
     }
 
-    #[tracing::instrument(skip_all, fields(geth_node_id = self.id))]
+    #[tracing::instrument(level = "info", skip_all, fields(geth_node_id = self.id), err)]
-    fn block_difficulty(&self, number: BlockNumberOrTag) -> anyhow::Result<U256> {
+    async fn block_difficulty(&self, number: BlockNumberOrTag) -> anyhow::Result<U256> {
-        let provider = self.provider();
+        self.provider()
-        BlockingExecutor::execute(async move {
-            provider
             .await?
             .get_block_by_number(number)
             .await?
             .ok_or(anyhow::Error::msg("Blockchain has no blocks"))
-                .map(|block| block.header.difficulty)
+            .map(|block| U256::from_be_bytes(block.header.mix_hash.0))
-        })?
     }
 
-    #[tracing::instrument(skip_all, fields(geth_node_id = self.id))]
+    #[tracing::instrument(level = "info", skip_all, fields(geth_node_id = self.id), err)]
-    fn block_hash(&self, number: BlockNumberOrTag) -> anyhow::Result<BlockHash> {
+    async fn block_base_fee(&self, number: BlockNumberOrTag) -> anyhow::Result<u64> {
-        let provider = self.provider();
+        self.provider()
-        BlockingExecutor::execute(async move {
+            .await?
-            provider
+            .get_block_by_number(number)
+            .await?
+            .ok_or(anyhow::Error::msg("Blockchain has no blocks"))
+            .and_then(|block| {
+                block
+                    .header
+                    .base_fee_per_gas
+                    .context("Failed to get the base fee per gas")
+            })
+    }
+
+    #[tracing::instrument(level = "info", skip_all, fields(geth_node_id = self.id), err)]
+    async fn block_hash(&self, number: BlockNumberOrTag) -> anyhow::Result<BlockHash> {
+        self.provider()
             .await?
             .get_block_by_number(number)
             .await?
             .ok_or(anyhow::Error::msg("Blockchain has no blocks"))
             .map(|block| block.header.hash)
-        })?
     }
 
-    #[tracing::instrument(skip_all, fields(geth_node_id = self.id))]
+    #[tracing::instrument(level = "info", skip_all, fields(geth_node_id = self.id), err)]
-    fn block_timestamp(&self, number: BlockNumberOrTag) -> anyhow::Result<BlockTimestamp> {
+    async fn block_timestamp(&self, number: BlockNumberOrTag) -> anyhow::Result<BlockTimestamp> {
-        let provider = self.provider();
+        self.provider()
-        BlockingExecutor::execute(async move {
-            provider
             .await?
             .get_block_by_number(number)
             .await?
             .ok_or(anyhow::Error::msg("Blockchain has no blocks"))
             .map(|block| block.header.timestamp)
-        })?
     }
 
-    #[tracing::instrument(skip_all, fields(geth_node_id = self.id))]
+    #[tracing::instrument(level = "info", skip_all, fields(geth_node_id = self.id), err)]
-    fn last_block_number(&self) -> anyhow::Result<BlockNumber> {
+    async fn last_block_number(&self) -> anyhow::Result<BlockNumber> {
-        let provider = self.provider();
+        self.provider()
-        BlockingExecutor::execute(async move {
+            .await?
-            provider.await?.get_block_number().await.map_err(Into::into)
+            .get_block_number()
-        })?
+            .await
+            .map_err(Into::into)
     }
 }
 
-impl Node for Instance {
+impl Node for GethNode {
     fn new(config: &Arguments) -> Self {
         let geth_directory = config.directory().join(Self::BASE_DIRECTORY);
         let id = NODE_COUNT.fetch_add(1, Ordering::SeqCst);
@@ -463,12 +527,12 @@ impl Node for Instance {
         }
     }
 
-    #[tracing::instrument(skip_all, fields(geth_node_id = self.id))]
+    #[tracing::instrument(level = "info", skip_all, fields(geth_node_id = self.id))]
     fn connection_string(&self) -> String {
         self.connection_string.clone()
     }
 
-    #[tracing::instrument(skip_all, fields(geth_node_id = self.id))]
+    #[tracing::instrument(level = "info", skip_all, fields(geth_node_id = self.id), err)]
     fn shutdown(&mut self) -> anyhow::Result<()> {
         // Terminate the processes in a graceful manner to allow for the output to be flushed.
         if let Some(mut child) = self.handle.take() {
@@ -490,13 +554,13 @@ impl Node for Instance {
         Ok(())
     }
 
-    #[tracing::instrument(skip_all, fields(geth_node_id = self.id))]
+    #[tracing::instrument(level = "info", skip_all, fields(geth_node_id = self.id), err)]
     fn spawn(&mut self, genesis: String) -> anyhow::Result<()> {
         self.init(genesis)?.spawn_process()?;
         Ok(())
     }
 
-    #[tracing::instrument(skip_all, fields(geth_node_id = self.id))]
+    #[tracing::instrument(level = "info", skip_all, fields(geth_node_id = self.id), err)]
     fn version(&self) -> anyhow::Result<String> {
         let output = Command::new(&self.geth)
             .arg("--version")
@@ -509,17 +573,21 @@ impl Node for Instance {
         Ok(String::from_utf8_lossy(&output).into())
     }
 
-    #[tracing::instrument(skip_all, fields(geth_node_id = self.id))]
+    #[tracing::instrument(level = "info", skip_all, fields(geth_node_id = self.id))]
     fn matches_target(&self, targets: Option<&[String]>) -> bool {
         match targets {
             None => true,
             Some(targets) => targets.iter().any(|str| str.as_str() == "evm"),
         }
     }
+
+    fn evm_version() -> EVMVersion {
+        EVMVersion::Cancun
+    }
 }
 
-impl Drop for Instance {
+impl Drop for GethNode {
-    #[tracing::instrument(skip_all, fields(geth_node_id = self.id))]
+    #[tracing::instrument(level = "info", skip_all, fields(geth_node_id = self.id))]
     fn drop(&mut self) {
         self.shutdown().expect("Failed to shutdown")
     }
@@ -543,9 +611,9 @@ mod tests {
         (config, temp_dir)
     }
 
-    fn new_node() -> (Instance, TempDir) {
+    fn new_node() -> (GethNode, TempDir) {
         let (args, temp_dir) = test_config();
-        let mut node = Instance::new(&args);
+        let mut node = GethNode::new(&args);
         node.init(GENESIS_JSON.to_owned())
             .expect("Failed to initialize the node")
             .spawn_process()
@@ -555,110 +623,110 @@ mod tests {
 
     #[test]
     fn init_works() {
-        Instance::new(&test_config().0)
+        GethNode::new(&test_config().0)
             .init(GENESIS_JSON.to_string())
             .unwrap();
     }
 
     #[test]
     fn spawn_works() {
-        Instance::new(&test_config().0)
+        GethNode::new(&test_config().0)
             .spawn(GENESIS_JSON.to_string())
             .unwrap();
     }
 
     #[test]
     fn version_works() {
-        let version = Instance::new(&test_config().0).version().unwrap();
+        let version = GethNode::new(&test_config().0).version().unwrap();
         assert!(
             version.starts_with("geth version"),
             "expected version string, got: '{version}'"
         );
     }
 
-    #[test]
+    #[tokio::test]
-    fn can_get_chain_id_from_node() {
+    async fn can_get_chain_id_from_node() {
         // Arrange
         let (node, _temp_dir) = new_node();
 
         // Act
-        let chain_id = node.chain_id();
+        let chain_id = node.chain_id().await;
 
         // Assert
         let chain_id = chain_id.expect("Failed to get the chain id");
         assert_eq!(chain_id, 420_420_420);
     }
 
-    #[test]
+    #[tokio::test]
-    fn can_get_gas_limit_from_node() {
+    async fn can_get_gas_limit_from_node() {
         // Arrange
         let (node, _temp_dir) = new_node();
 
         // Act
-        let gas_limit = node.block_gas_limit(BlockNumberOrTag::Latest);
+        let gas_limit = node.block_gas_limit(BlockNumberOrTag::Latest).await;
 
         // Assert
         let gas_limit = gas_limit.expect("Failed to get the gas limit");
         assert_eq!(gas_limit, u32::MAX as u128)
     }
 
-    #[test]
+    #[tokio::test]
-    fn can_get_coinbase_from_node() {
+    async fn can_get_coinbase_from_node() {
         // Arrange
         let (node, _temp_dir) = new_node();
 
         // Act
-        let coinbase = node.block_coinbase(BlockNumberOrTag::Latest);
+        let coinbase = node.block_coinbase(BlockNumberOrTag::Latest).await;
 
         // Assert
         let coinbase = coinbase.expect("Failed to get the coinbase");
         assert_eq!(coinbase, Address::new([0xFF; 20]))
     }
 
-    #[test]
+    #[tokio::test]
-    fn can_get_block_difficulty_from_node() {
+    async fn can_get_block_difficulty_from_node() {
         // Arrange
         let (node, _temp_dir) = new_node();
 
         // Act
-        let block_difficulty = node.block_difficulty(BlockNumberOrTag::Latest);
+        let block_difficulty = node.block_difficulty(BlockNumberOrTag::Latest).await;
 
         // Assert
         let block_difficulty = block_difficulty.expect("Failed to get the block difficulty");
         assert_eq!(block_difficulty, U256::ZERO)
     }
 
-    #[test]
+    #[tokio::test]
-    fn can_get_block_hash_from_node() {
+    async fn can_get_block_hash_from_node() {
         // Arrange
         let (node, _temp_dir) = new_node();
 
         // Act
-        let block_hash = node.block_hash(BlockNumberOrTag::Latest);
+        let block_hash = node.block_hash(BlockNumberOrTag::Latest).await;
 
         // Assert
         let _ = block_hash.expect("Failed to get the block hash");
     }
 
-    #[test]
+    #[tokio::test]
-    fn can_get_block_timestamp_from_node() {
+    async fn can_get_block_timestamp_from_node() {
         // Arrange
         let (node, _temp_dir) = new_node();
 
         // Act
-        let block_timestamp = node.block_timestamp(BlockNumberOrTag::Latest);
+        let block_timestamp = node.block_timestamp(BlockNumberOrTag::Latest).await;
 
         // Assert
         let _ = block_timestamp.expect("Failed to get the block timestamp");
     }
 
-    #[test]
+    #[tokio::test]
-    fn can_get_block_number_from_node() {
+    async fn can_get_block_number_from_node() {
         // Arrange
         let (node, _temp_dir) = new_node();
 
         // Act
-        let block_number = node.last_block_number();
+        let block_number = node.last_block_number().await;
 
         // Assert
         let block_number = block_number.expect("Failed to get the block number");

crates/node/src/kitchensink.rs

@@ -16,7 +16,8 @@ use alloy::{
         TransactionBuilderError, UnbuiltTransactionError,
     },
     primitives::{
-        Address, B64, B256, BlockHash, BlockNumber, BlockTimestamp, Bloom, Bytes, FixedBytes, U256,
+        Address, B64, B256, BlockHash, BlockNumber, BlockTimestamp, Bloom, Bytes, FixedBytes,
+        StorageKey, TxHash, U256,
     },
     providers::{
         Provider, ProviderBuilder,
@@ -24,12 +25,15 @@ use alloy::{
         fillers::{CachedNonceManager, ChainIdFiller, FillProvider, NonceFiller, TxFiller},
     },
     rpc::types::{
-        TransactionReceipt,
+        EIP1186AccountProofResponse, TransactionReceipt,
         eth::{Block, Header, Transaction},
         trace::geth::{DiffMode, GethDebugTracingOptions, PreStateConfig, PreStateFrame},
     },
     signers::local::PrivateKeySigner,
 };
+use anyhow::Context;
+use revive_common::EVMVersion;
+use revive_dt_common::fs::clear_directory;
 use revive_dt_format::traits::ResolverApi;
 use serde::{Deserialize, Serialize};
 use serde_json::{Value as JsonValue, json};
@@ -37,7 +41,6 @@ use sp_core::crypto::Ss58Codec;
 use sp_runtime::AccountId32;
 use tracing::Level;
 
-use revive_dt_common::concepts::BlockingExecutor;
 use revive_dt_config::Arguments;
 use revive_dt_node_interaction::EthereumNode;
 
@@ -86,6 +89,9 @@ impl KitchensinkNode {
 
     #[tracing::instrument(skip_all, fields(kitchensink_node_id = self.id))]
     fn init(&mut self, genesis: &str) -> anyhow::Result<&mut Self> {
+        let _ = clear_directory(&self.base_directory);
+        let _ = clear_directory(&self.logs_directory);
+
         create_dir_all(&self.base_directory)?;
         create_dir_all(&self.logs_directory)?;
 
@@ -154,7 +160,7 @@ impl KitchensinkNode {
         Ok(self)
     }
 
-    #[tracing::instrument(skip_all, fields(kitchensink_node_id = self.id))]
+    #[tracing::instrument(skip_all, fields(kitchensink_node_id = self.id), err)]
     fn spawn_process(&mut self) -> anyhow::Result<()> {
         let substrate_rpc_port = Self::BASE_SUBSTRATE_RPC_PORT + self.id as u16;
         let proxy_rpc_port = Self::BASE_PROXY_RPC_PORT + self.id as u16;
@@ -206,7 +212,7 @@ impl KitchensinkNode {
         if let Err(error) = Self::wait_ready(
             self.kitchensink_stderr_log_file_path().as_path(),
             Self::SUBSTRATE_READY_MARKER,
-            Duration::from_secs(30),
+            Duration::from_secs(60),
         ) {
             tracing::error!(
                 ?error,
@@ -235,7 +241,7 @@ impl KitchensinkNode {
         if let Err(error) = Self::wait_ready(
             self.proxy_stderr_log_file_path().as_path(),
             Self::ETH_PROXY_READY_MARKER,
-            Duration::from_secs(30),
+            Duration::from_secs(60),
         ) {
             tracing::error!(?error, "Failed to start proxy, shutting down gracefully");
             self.shutdown()?;
@@ -252,7 +258,7 @@ impl KitchensinkNode {
         Ok(())
     }
 
-    #[tracing::instrument(skip_all, fields(kitchensink_node_id = self.id))]
+    #[tracing::instrument(skip_all, fields(kitchensink_node_id = self.id), err)]
     fn extract_balance_from_genesis_file(
         &self,
         genesis: &Genesis,
@@ -301,7 +307,7 @@ impl KitchensinkNode {
         }
     }
 
-    #[tracing::instrument(skip_all, fields(kitchensink_node_id = self.id))]
+    #[tracing::instrument(skip_all, fields(kitchensink_node_id = self.id), err)]
     pub fn eth_rpc_version(&self) -> anyhow::Result<String> {
         let output = Command::new(&self.eth_proxy_binary)
             .arg("--version")
@@ -376,138 +382,170 @@ impl KitchensinkNode {
 }
 
 impl EthereumNode for KitchensinkNode {
-    #[tracing::instrument(skip_all, fields(kitchensink_node_id = self.id))]
+    #[tracing::instrument(skip_all, fields(kitchensink_node_id = self.id), err)]
-    fn execute_transaction(
+    async fn execute_transaction(
         &self,
         transaction: alloy::rpc::types::TransactionRequest,
     ) -> anyhow::Result<TransactionReceipt> {
         tracing::debug!(?transaction, "Submitting transaction");
-        let provider = self.provider();
+        let receipt = self
-        let receipt = BlockingExecutor::execute(async move {
+            .provider()
-            Ok(provider
             .await?
             .send_transaction(transaction)
             .await?
             .get_receipt()
-                .await?)
+            .await?;
-        })?;
         tracing::info!(?receipt, "Submitted tx to kitchensink");
-        receipt
+        Ok(receipt)
     }
 
-    #[tracing::instrument(skip_all, fields(kitchensink_node_id = self.id))]
+    #[tracing::instrument(skip_all, fields(kitchensink_node_id = self.id), err)]
-    fn trace_transaction(
+    async fn trace_transaction(
         &self,
         transaction: &TransactionReceipt,
         trace_options: GethDebugTracingOptions,
     ) -> anyhow::Result<alloy::rpc::types::trace::geth::GethTrace> {
         let tx_hash = transaction.transaction_hash;
-        let provider = self.provider();
+        Ok(self
-        BlockingExecutor::execute(async move {
+            .provider()
-            Ok(provider
             .await?
             .debug_trace_transaction(tx_hash, trace_options)
             .await?)
-        })?
     }
 
-    #[tracing::instrument(skip_all, fields(kitchensink_node_id = self.id))]
+    #[tracing::instrument(skip_all, fields(kitchensink_node_id = self.id), err)]
-    fn state_diff(&self, transaction: &TransactionReceipt) -> anyhow::Result<DiffMode> {
+    async fn state_diff(&self, transaction: &TransactionReceipt) -> anyhow::Result<DiffMode> {
         let trace_options = GethDebugTracingOptions::prestate_tracer(PreStateConfig {
             diff_mode: Some(true),
             disable_code: None,
             disable_storage: None,
         });
         match self
-            .trace_transaction(transaction, trace_options)?
+            .trace_transaction(transaction, trace_options)
+            .await?
             .try_into_pre_state_frame()?
         {
             PreStateFrame::Diff(diff) => Ok(diff),
             _ => anyhow::bail!("expected a diff mode trace"),
         }
     }
+
+    #[tracing::instrument(skip_all, fields(kitchensink_node_id = self.id), err)]
+    async fn balance_of(&self, address: Address) -> anyhow::Result<U256> {
+        self.provider()
+            .await?
+            .get_balance(address)
+            .await
+            .map_err(Into::into)
+    }
+
+    #[tracing::instrument(skip_all, fields(kitchensink_node_id = self.id), err)]
+    async fn latest_state_proof(
+        &self,
+        address: Address,
+        keys: Vec<StorageKey>,
+    ) -> anyhow::Result<EIP1186AccountProofResponse> {
+        self.provider()
+            .await?
+            .get_proof(address, keys)
+            .latest()
+            .await
+            .map_err(Into::into)
+    }
 }
 
 impl ResolverApi for KitchensinkNode {
-    #[tracing::instrument(skip_all, fields(geth_node_id = self.id))]
+    #[tracing::instrument(skip_all, fields(kitchensink_node_id = self.id), err)]
-    fn chain_id(&self) -> anyhow::Result<alloy::primitives::ChainId> {
+    async fn chain_id(&self) -> anyhow::Result<alloy::primitives::ChainId> {
-        let provider = self.provider();
+        self.provider()
-        BlockingExecutor::execute(async move {
+            .await?
-            provider.await?.get_chain_id().await.map_err(Into::into)
+            .get_chain_id()
-        })?
+            .await
+            .map_err(Into::into)
     }
 
-    #[tracing::instrument(skip_all, fields(geth_node_id = self.id))]
+    #[tracing::instrument(skip_all, fields(kitchensink_node_id = self.id), err)]
-    fn block_gas_limit(&self, number: BlockNumberOrTag) -> anyhow::Result<u128> {
+    async fn transaction_gas_price(&self, tx_hash: &TxHash) -> anyhow::Result<u128> {
-        let provider = self.provider();
+        self.provider()
-        BlockingExecutor::execute(async move {
+            .await?
-            provider
+            .get_transaction_receipt(*tx_hash)
+            .await?
+            .context("Failed to get the transaction receipt")
+            .map(|receipt| receipt.effective_gas_price)
+    }
+
+    #[tracing::instrument(skip_all, fields(kitchensink_node_id = self.id), err)]
+    async fn block_gas_limit(&self, number: BlockNumberOrTag) -> anyhow::Result<u128> {
+        self.provider()
             .await?
             .get_block_by_number(number)
             .await?
             .ok_or(anyhow::Error::msg("Blockchain has no blocks"))
-                .map(|block| block.header.gas_limit)
+            .map(|block| block.header.gas_limit as _)
-        })?
     }
 
-    #[tracing::instrument(skip_all, fields(geth_node_id = self.id))]
+    #[tracing::instrument(skip_all, fields(kitchensink_node_id = self.id), err)]
-    fn block_coinbase(&self, number: BlockNumberOrTag) -> anyhow::Result<Address> {
+    async fn block_coinbase(&self, number: BlockNumberOrTag) -> anyhow::Result<Address> {
-        let provider = self.provider();
+        self.provider()
-        BlockingExecutor::execute(async move {
-            provider
             .await?
             .get_block_by_number(number)
             .await?
             .ok_or(anyhow::Error::msg("Blockchain has no blocks"))
             .map(|block| block.header.beneficiary)
-        })?
     }
 
-    #[tracing::instrument(skip_all, fields(geth_node_id = self.id))]
+    #[tracing::instrument(skip_all, fields(kitchensink_node_id = self.id), err)]
-    fn block_difficulty(&self, number: BlockNumberOrTag) -> anyhow::Result<U256> {
+    async fn block_difficulty(&self, number: BlockNumberOrTag) -> anyhow::Result<U256> {
-        let provider = self.provider();
+        self.provider()
-        BlockingExecutor::execute(async move {
-            provider
             .await?
             .get_block_by_number(number)
             .await?
             .ok_or(anyhow::Error::msg("Blockchain has no blocks"))
-                .map(|block| block.header.difficulty)
+            .map(|block| U256::from_be_bytes(block.header.mix_hash.0))
-        })?
     }
 
-    #[tracing::instrument(skip_all, fields(geth_node_id = self.id))]
+    #[tracing::instrument(skip_all, fields(kitchensink_node_id = self.id), err)]
-    fn block_hash(&self, number: BlockNumberOrTag) -> anyhow::Result<BlockHash> {
+    async fn block_base_fee(&self, number: BlockNumberOrTag) -> anyhow::Result<u64> {
-        let provider = self.provider();
+        self.provider()
-        BlockingExecutor::execute(async move {
+            .await?
-            provider
+            .get_block_by_number(number)
+            .await?
+            .ok_or(anyhow::Error::msg("Blockchain has no blocks"))
+            .and_then(|block| {
+                block
+                    .header
+                    .base_fee_per_gas
+                    .context("Failed to get the base fee per gas")
+            })
+    }
+
+    #[tracing::instrument(skip_all, fields(kitchensink_node_id = self.id), err)]
+    async fn block_hash(&self, number: BlockNumberOrTag) -> anyhow::Result<BlockHash> {
+        self.provider()
             .await?
             .get_block_by_number(number)
             .await?
             .ok_or(anyhow::Error::msg("Blockchain has no blocks"))
             .map(|block| block.header.hash)
-        })?
     }
 
-    #[tracing::instrument(skip_all, fields(geth_node_id = self.id))]
+    #[tracing::instrument(skip_all, fields(kitchensink_node_id = self.id), err)]
-    fn block_timestamp(&self, number: BlockNumberOrTag) -> anyhow::Result<BlockTimestamp> {
+    async fn block_timestamp(&self, number: BlockNumberOrTag) -> anyhow::Result<BlockTimestamp> {
-        let provider = self.provider();
+        self.provider()
-        BlockingExecutor::execute(async move {
-            provider
             .await?
             .get_block_by_number(number)
             .await?
             .ok_or(anyhow::Error::msg("Blockchain has no blocks"))
             .map(|block| block.header.timestamp)
-        })?
     }
 
-    #[tracing::instrument(skip_all, fields(geth_node_id = self.id))]
+    #[tracing::instrument(skip_all, fields(kitchensink_node_id = self.id), err)]
-    fn last_block_number(&self) -> anyhow::Result<BlockNumber> {
+    async fn last_block_number(&self) -> anyhow::Result<BlockNumber> {
-        let provider = self.provider();
+        self.provider()
-        BlockingExecutor::execute(async move {
+            .await?
-            provider.await?.get_block_number().await.map_err(Into::into)
+            .get_block_number()
-        })?
+            .await
+            .map_err(Into::into)
     }
 }
 
@@ -549,7 +587,7 @@ impl Node for KitchensinkNode {
         self.rpc_url.clone()
     }
 
-    #[tracing::instrument(skip_all, fields(kitchensink_node_id = self.id))]
+    #[tracing::instrument(skip_all, fields(kitchensink_node_id = self.id), err)]
     fn shutdown(&mut self) -> anyhow::Result<()> {
         // Terminate the processes in a graceful manner to allow for the output to be flushed.
         if let Some(mut child) = self.process_proxy.take() {
@@ -576,12 +614,12 @@ impl Node for KitchensinkNode {
         Ok(())
     }
 
-    #[tracing::instrument(skip_all, fields(kitchensink_node_id = self.id))]
+    #[tracing::instrument(skip_all, fields(kitchensink_node_id = self.id), err)]
     fn spawn(&mut self, genesis: String) -> anyhow::Result<()> {
         self.init(&genesis)?.spawn_process()
     }
 
-    #[tracing::instrument(skip_all, fields(kitchensink_node_id = self.id))]
+    #[tracing::instrument(skip_all, fields(kitchensink_node_id = self.id), err)]
     fn version(&self) -> anyhow::Result<String> {
         let output = Command::new(&self.substrate_binary)
             .arg("--version")
@@ -601,6 +639,10 @@ impl Node for KitchensinkNode {
             Some(targets) => targets.iter().any(|str| str.as_str() == "pvm"),
         }
     }
+
+    fn evm_version() -> EVMVersion {
+        EVMVersion::Cancun
+    }
 }
 
 impl Drop for KitchensinkNode {
@@ -1043,26 +1085,21 @@ mod tests {
     use revive_dt_config::Arguments;
     use std::path::PathBuf;
     use std::sync::{LazyLock, Mutex};
-    use temp_dir::TempDir;
 
     use std::fs;
 
     use super::*;
     use crate::{GENESIS_JSON, Node};
 
-    fn test_config() -> (Arguments, TempDir) {
+    fn test_config() -> Arguments {
-        let mut config = Arguments::default();
+        Arguments {
-        let temp_dir = TempDir::new().unwrap();
+            kitchensink: PathBuf::from("substrate-node"),
-
+            eth_proxy: PathBuf::from("eth-rpc"),
-        config.working_directory = temp_dir.path().to_path_buf().into();
+            ..Default::default()
-
+        }
-        config.kitchensink = PathBuf::from("substrate-node");
-        config.eth_proxy = PathBuf::from("eth-rpc");
-
-        (config, temp_dir)
     }
 
-    fn new_node() -> (KitchensinkNode, Arguments, TempDir) {
+    fn new_node() -> (KitchensinkNode, Arguments) {
         // Note: When we run the tests in the CI we found that if they're all
         // run in parallel then the CI is unable to start all of the nodes in
         // time and their start up times-out. Therefore, we want all of the
@@ -1081,20 +1118,20 @@ mod tests {
         static NODE_START_MUTEX: Mutex<()> = Mutex::new(());
         let _guard = NODE_START_MUTEX.lock().unwrap();
 
-        let (args, temp_dir) = test_config();
+        let args = test_config();
         let mut node = KitchensinkNode::new(&args);
         node.init(GENESIS_JSON)
             .expect("Failed to initialize the node")
             .spawn_process()
             .expect("Failed to spawn the node process");
-        (node, args, temp_dir)
+        (node, args)
     }
 
     /// A shared node that multiple tests can use. It starts up once.
     fn shared_node() -> &'static KitchensinkNode {
-        static NODE: LazyLock<(KitchensinkNode, TempDir)> = LazyLock::new(|| {
+        static NODE: LazyLock<(KitchensinkNode, Arguments)> = LazyLock::new(|| {
-            let (node, _, temp_dir) = new_node();
+            let (node, args) = new_node();
-            (node, temp_dir)
+            (node, args)
         });
         &NODE.0
     }
@@ -1102,7 +1139,7 @@ mod tests {
     #[tokio::test]
     async fn node_mines_simple_transfer_transaction_and_returns_receipt() {
         // Arrange
-        let (node, args, _temp_dir) = new_node();
+        let (node, args) = new_node();
 
         let provider = node.provider().await.expect("Failed to create provider");
 
@@ -1137,7 +1174,7 @@ mod tests {
         }
         "#;
 
-        let mut dummy_node = KitchensinkNode::new(&test_config().0);
+        let mut dummy_node = KitchensinkNode::new(&test_config());
 
         // Call `init()`
         dummy_node.init(genesis_content).expect("init failed");
@@ -1181,7 +1218,7 @@ mod tests {
         }
         "#;
 
-        let node = KitchensinkNode::new(&test_config().0);
+        let node = KitchensinkNode::new(&test_config());
 
         let result = node
             .extract_balance_from_genesis_file(&serde_json::from_str(genesis_json).unwrap())
@@ -1252,15 +1289,16 @@ mod tests {
 
     #[test]
     fn spawn_works() {
-        let (config, _temp_dir) = test_config();
+        let config = test_config();
 
         let mut node = KitchensinkNode::new(&config);
+
         node.spawn(GENESIS_JSON.to_string()).unwrap();
     }
 
     #[test]
     fn version_works() {
-        let (config, _temp_dir) = test_config();
+        let config = test_config();
 
         let node = KitchensinkNode::new(&config);
         let version = node.version().unwrap();
@@ -1273,7 +1311,7 @@ mod tests {
 
     #[test]
     fn eth_rpc_version_works() {
-        let (config, _temp_dir) = test_config();
+        let config = test_config();
 
         let node = KitchensinkNode::new(&config);
         let version = node.eth_rpc_version().unwrap();
@@ -1284,86 +1322,86 @@ mod tests {
         );
     }
 
-    #[test]
+    #[tokio::test]
-    fn can_get_chain_id_from_node() {
+    async fn can_get_chain_id_from_node() {
         // Arrange
         let node = shared_node();
 
         // Act
-        let chain_id = node.chain_id();
+        let chain_id = node.chain_id().await;
 
         // Assert
         let chain_id = chain_id.expect("Failed to get the chain id");
         assert_eq!(chain_id, 420_420_420);
     }
 
-    #[test]
+    #[tokio::test]
-    fn can_get_gas_limit_from_node() {
+    async fn can_get_gas_limit_from_node() {
         // Arrange
         let node = shared_node();
 
         // Act
-        let gas_limit = node.block_gas_limit(BlockNumberOrTag::Latest);
+        let gas_limit = node.block_gas_limit(BlockNumberOrTag::Latest).await;
 
         // Assert
         let _ = gas_limit.expect("Failed to get the gas limit");
     }
 
-    #[test]
+    #[tokio::test]
-    fn can_get_coinbase_from_node() {
+    async fn can_get_coinbase_from_node() {
         // Arrange
         let node = shared_node();
 
         // Act
-        let coinbase = node.block_coinbase(BlockNumberOrTag::Latest);
+        let coinbase = node.block_coinbase(BlockNumberOrTag::Latest).await;
 
         // Assert
         let _ = coinbase.expect("Failed to get the coinbase");
     }
 
-    #[test]
+    #[tokio::test]
-    fn can_get_block_difficulty_from_node() {
+    async fn can_get_block_difficulty_from_node() {
         // Arrange
         let node = shared_node();
 
         // Act
-        let block_difficulty = node.block_difficulty(BlockNumberOrTag::Latest);
+        let block_difficulty = node.block_difficulty(BlockNumberOrTag::Latest).await;
 
         // Assert
         let _ = block_difficulty.expect("Failed to get the block difficulty");
     }
 
-    #[test]
+    #[tokio::test]
-    fn can_get_block_hash_from_node() {
+    async fn can_get_block_hash_from_node() {
         // Arrange
         let node = shared_node();
 
         // Act
-        let block_hash = node.block_hash(BlockNumberOrTag::Latest);
+        let block_hash = node.block_hash(BlockNumberOrTag::Latest).await;
 
         // Assert
         let _ = block_hash.expect("Failed to get the block hash");
     }
 
-    #[test]
+    #[tokio::test]
-    fn can_get_block_timestamp_from_node() {
+    async fn can_get_block_timestamp_from_node() {
         // Arrange
         let node = shared_node();
 
         // Act
-        let block_timestamp = node.block_timestamp(BlockNumberOrTag::Latest);
+        let block_timestamp = node.block_timestamp(BlockNumberOrTag::Latest).await;
 
         // Assert
         let _ = block_timestamp.expect("Failed to get the block timestamp");
     }
 
-    #[test]
+    #[tokio::test]
-    fn can_get_block_number_from_node() {
+    async fn can_get_block_number_from_node() {
         // Arrange
         let node = shared_node();
 
         // Act
-        let block_number = node.last_block_number();
+        let block_number = node.last_block_number().await;
 
         // Assert
         let _ = block_number.expect("Failed to get the block number");

crates/node/src/lib.rs

@@ -1,5 +1,6 @@
 //! This crate implements the testing nodes.
 
+use revive_common::EVMVersion;
 use revive_dt_config::Arguments;
 use revive_dt_node_interaction::EthereumNode;
 
@@ -36,4 +37,7 @@ pub trait Node: EthereumNode {
     /// Given a list of targets from the metadata file, this function determines if the metadata
     /// file can be ran on this node or not.
     fn matches_target(&self, targets: Option<&[String]>) -> bool;
+
+    /// Returns the EVM version of the node.
+    fn evm_version() -> EVMVersion;
 }

crates/node/src/pool.rs

@@ -24,7 +24,7 @@ where
 {
     /// Create a new Pool. This will start as many nodes as there are workers in `config`.
     pub fn new(config: &Arguments) -> anyhow::Result<Self> {
-        let nodes = config.workers;
+        let nodes = config.number_of_nodes;
         let genesis = read_to_string(&config.genesis_file).context(format!(
             "can not read genesis file: {}",
             config.genesis_file.display()

crates/report/Cargo.toml

@@ -10,9 +10,9 @@ rust-version.workspace = true
 [dependencies]
 revive-dt-config = { workspace = true }
 revive-dt-format = { workspace = true }
+revive-dt-compiler = { workspace = true }
 
 anyhow = { workspace = true }
 tracing = { workspace = true }
 serde = { workspace = true }
 serde_json = { workspace = true }
-revive-solc-json-interface = { workspace = true }

crates/report/src/analyzer.rs

@@ -1,5 +1,6 @@
 //! The report analyzer enriches the raw report data.
 
+use revive_dt_compiler::CompilerOutput;
 use serde::{Deserialize, Serialize};
 
 use crate::reporter::CompilationTask;
@@ -13,41 +14,27 @@ pub struct CompilerStatistics {
     pub mean_code_size: usize,
     /// The mean size of the optimized YUL IR.
     pub mean_yul_size: usize,
-    /// Is a proxy because the YUL also containes a lot of comments.
+    /// Is a proxy because the YUL also contains a lot of comments.
     pub yul_to_bytecode_size_ratio: f32,
 }
 
 impl CompilerStatistics {
     /// Cumulatively update the statistics with the next compiler task.
     pub fn sample(&mut self, compilation_task: &CompilationTask) {
-        let Some(output) = &compilation_task.json_output else {
+        let Some(CompilerOutput { contracts }) = &compilation_task.json_output else {
-            return;
-        };
-
-        let Some(contracts) = &output.contracts else {
             return;
         };
 
         for (_solidity, contracts) in contracts.iter() {
-            for (_name, contract) in contracts.iter() {
+            for (_name, (bytecode, _)) in contracts.iter() {
-                let Some(evm) = &contract.evm else {
-                    continue;
-                };
-                let Some(deploy_code) = &evm.deployed_bytecode else {
-                    continue;
-                };
-
                 // The EVM bytecode can be unlinked and thus is not necessarily a decodable hex
                 // string; for our statistics this is a good enough approximation.
-                let bytecode_size = deploy_code.object.len() / 2;
+                let bytecode_size = bytecode.len() / 2;
 
-                let yul_size = contract
+                // TODO: for the time being we set the yul_size to be zero. We need to change this
-                    .ir_optimized
+                // when we overhaul the reporting.
-                    .as_ref()
-                    .expect("if the contract has a deploy code it should also have the opimized IR")
-                    .len();
 
-                self.update_sizes(bytecode_size, yul_size);
+                self.update_sizes(bytecode_size, 0);
             }
         }
     }

crates/report/src/reporter.rs

@@ -12,11 +12,11 @@ use std::{
 };
 
 use anyhow::Context;
+use revive_dt_compiler::{CompilerInput, CompilerOutput};
 use serde::{Deserialize, Serialize};
 
 use revive_dt_config::{Arguments, TestingPlatform};
 use revive_dt_format::{corpus::Corpus, mode::SolcMode};
-use revive_solc_json_interface::{SolcStandardJsonInput, SolcStandardJsonOutput};
 
 use crate::analyzer::CompilerStatistics;
 
@@ -44,9 +44,9 @@ pub struct Report {
 #[derive(Clone, Debug, Serialize, Deserialize)]
 pub struct CompilationTask {
     /// The observed compiler input.
-    pub json_input: SolcStandardJsonInput,
+    pub json_input: CompilerInput,
     /// The observed compiler output.
-    pub json_output: Option<SolcStandardJsonOutput>,
+    pub json_output: Option<CompilerOutput>,
     /// The observed compiler mode.
     pub mode: SolcMode,
     /// The observed compiler version.
@@ -152,15 +152,7 @@ impl Report {
         for (platform, results) in self.compiler_results.iter() {
             for result in results {
                 // ignore if there were no errors
-                if result.compilation_task.error.is_none()
+                if result.compilation_task.error.is_none() {
-                    && result
-                        .compilation_task
-                        .json_output
-                        .as_ref()
-                        .and_then(|output| output.errors.as_ref())
-                        .map(|errors| errors.is_empty())
-                        .unwrap_or(true)
-                {
                     continue;
                 }
 

crates/solc-binaries/Cargo.toml

@@ -9,9 +9,12 @@ repository.workspace = true
 rust-version.workspace = true
 
 [dependencies]
+revive-dt-common = { workspace = true }
+
 anyhow = { workspace = true }
 hex = { workspace = true }
 tracing = { workspace = true }
+tokio = { workspace = true }
 reqwest = { workspace = true }
 semver = { workspace = true }
 serde = { workspace = true }

crates/solc-binaries/src/cache.rs

@@ -6,37 +6,39 @@ use std::{
     io::{BufWriter, Write},
     os::unix::fs::PermissionsExt,
     path::{Path, PathBuf},
-    sync::{LazyLock, Mutex},
+    sync::LazyLock,
 };
 
-use crate::download::GHDownloader;
+use tokio::sync::Mutex;
+
+use crate::download::SolcDownloader;
 
 pub const SOLC_CACHE_DIRECTORY: &str = "solc";
 pub(crate) static SOLC_CACHER: LazyLock<Mutex<HashSet<PathBuf>>> = LazyLock::new(Default::default);
 
-pub(crate) fn get_or_download(
+pub(crate) async fn get_or_download(
     working_directory: &Path,
-    downloader: &GHDownloader,
+    downloader: &SolcDownloader,
 ) -> anyhow::Result<PathBuf> {
     let target_directory = working_directory
         .join(SOLC_CACHE_DIRECTORY)
         .join(downloader.version.to_string());
     let target_file = target_directory.join(downloader.target);
 
-    let mut cache = SOLC_CACHER.lock().unwrap();
+    let mut cache = SOLC_CACHER.lock().await;
     if cache.contains(&target_file) {
         tracing::debug!("using cached solc: {}", target_file.display());
         return Ok(target_file);
     }
 
     create_dir_all(target_directory)?;
-    download_to_file(&target_file, downloader)?;
+    download_to_file(&target_file, downloader).await?;
     cache.insert(target_file.clone());
 
     Ok(target_file)
 }
 
-fn download_to_file(path: &Path, downloader: &GHDownloader) -> anyhow::Result<()> {
+async fn download_to_file(path: &Path, downloader: &SolcDownloader) -> anyhow::Result<()> {
     tracing::info!("caching file: {}", path.display());
 
     let Ok(file) = File::create_new(path) else {
@@ -52,7 +54,7 @@ fn download_to_file(path: &Path, downloader: &GHDownloader) -> anyhow::Result<()
     }
 
     let mut file = BufWriter::new(file);
-    file.write_all(&downloader.download()?)?;
+    file.write_all(&downloader.download().await?)?;
     file.flush()?;
     drop(file);
 

crates/solc-binaries/src/download.rs

@@ -5,6 +5,8 @@ use std::{
     sync::{LazyLock, Mutex},
 };
 
+use revive_dt_common::types::VersionOrRequirement;
+
 use semver::Version;
 use sha2::{Digest, Sha256};
 
@@ -23,12 +25,12 @@ impl List {
     ///
     /// Caches the list retrieved from the `url` into [LIST_CACHE],
     /// subsequent calls with the same `url` will return the cached list.
-    pub fn download(url: &'static str) -> anyhow::Result<Self> {
+    pub async fn download(url: &'static str) -> anyhow::Result<Self> {
         if let Some(list) = LIST_CACHE.lock().unwrap().get(url) {
             return Ok(list.clone());
         }
 
-        let body: List = reqwest::blocking::get(url)?.json()?;
+        let body: List = reqwest::get(url).await?.json().await?;
 
         LIST_CACHE.lock().unwrap().insert(url, body.clone());
 
@@ -36,65 +38,91 @@ impl List {
     }
 }
 
-/// Download solc binaries from GitHub releases (IPFS links aren't reliable).
+/// Download solc binaries from the official SolidityLang site
 #[derive(Clone, Debug)]
-pub struct GHDownloader {
+pub struct SolcDownloader {
     pub version: Version,
     pub target: &'static str,
     pub list: &'static str,
 }
 
-impl GHDownloader {
+impl SolcDownloader {
-    pub const BASE_URL: &str = "https://github.com/ethereum/solidity/releases/download";
+    pub const BASE_URL: &str = "https://binaries.soliditylang.org";
 
-    pub const LINUX_NAME: &str = "solc-static-linux";
+    pub const LINUX_NAME: &str = "linux-amd64";
-    pub const MACOSX_NAME: &str = "solc-macos";
+    pub const MACOSX_NAME: &str = "macosx-amd64";
-    pub const WINDOWS_NAME: &str = "solc-windows.exe";
+    pub const WINDOWS_NAME: &str = "windows-amd64";
-    pub const WASM_NAME: &str = "soljson.js";
+    pub const WASM_NAME: &str = "wasm";
 
-    fn new(version: Version, target: &'static str, list: &'static str) -> Self {
+    async fn new(
-        Self {
+        version: impl Into<VersionOrRequirement>,
+        target: &'static str,
+        list: &'static str,
+    ) -> anyhow::Result<Self> {
+        let version_or_requirement = version.into();
+        match version_or_requirement {
+            VersionOrRequirement::Version(version) => Ok(Self {
                 version,
                 target,
                 list,
+            }),
+            VersionOrRequirement::Requirement(requirement) => {
+                let Some(version) = List::download(list)
+                    .await?
+                    .builds
+                    .into_iter()
+                    .map(|build| build.version)
+                    .filter(|version| requirement.matches(version))
+                    .max()
+                else {
+                    anyhow::bail!("Failed to find a version that satisfies {requirement:?}");
+                };
+                Ok(Self {
+                    version,
+                    target,
+                    list,
+                })
+            }
         }
     }
 
-    pub fn linux(version: Version) -> Self {
+    pub async fn linux(version: impl Into<VersionOrRequirement>) -> anyhow::Result<Self> {
-        Self::new(version, Self::LINUX_NAME, List::LINUX_URL)
+        Self::new(version, Self::LINUX_NAME, List::LINUX_URL).await
     }
 
-    pub fn macosx(version: Version) -> Self {
+    pub async fn macosx(version: impl Into<VersionOrRequirement>) -> anyhow::Result<Self> {
-        Self::new(version, Self::MACOSX_NAME, List::MACOSX_URL)
+        Self::new(version, Self::MACOSX_NAME, List::MACOSX_URL).await
     }
 
-    pub fn windows(version: Version) -> Self {
+    pub async fn windows(version: impl Into<VersionOrRequirement>) -> anyhow::Result<Self> {
-        Self::new(version, Self::WINDOWS_NAME, List::WINDOWS_URL)
+        Self::new(version, Self::WINDOWS_NAME, List::WINDOWS_URL).await
     }
 
-    pub fn wasm(version: Version) -> Self {
+    pub async fn wasm(version: impl Into<VersionOrRequirement>) -> anyhow::Result<Self> {
-        Self::new(version, Self::WASM_NAME, List::WASM_URL)
+        Self::new(version, Self::WASM_NAME, List::WASM_URL).await
-    }
-
-    /// Returns the download link.
-    pub fn url(&self) -> String {
-        format!("{}/v{}/{}", Self::BASE_URL, &self.version, &self.target)
     }
 
     /// Download the solc binary.
     ///
     /// Errors out if the download fails or the digest of the downloaded file
     /// mismatches the expected digest from the release [List].
-    pub fn download(&self) -> anyhow::Result<Vec<u8>> {
+    pub async fn download(&self) -> anyhow::Result<Vec<u8>> {
         tracing::info!("downloading solc: {self:?}");
-        let expected_digest = List::download(self.list)?
+        let builds = List::download(self.list).await?.builds;
-            .builds
+        let build = builds
             .iter()
             .find(|build| build.version == self.version)
-            .ok_or_else(|| anyhow::anyhow!("solc v{} not found builds", self.version))
+            .ok_or_else(|| anyhow::anyhow!("solc v{} not found builds", self.version))?;
-            .map(|b| b.sha256.strip_prefix("0x").unwrap_or(&b.sha256).to_string())?;
 
-        let file = reqwest::blocking::get(self.url())?.bytes()?.to_vec();
+        let path = build.path.clone();
+        let expected_digest = build
+            .sha256
+            .strip_prefix("0x")
+            .unwrap_or(&build.sha256)
+            .to_string();
+        let url = format!("{}/{}/{}", Self::BASE_URL, self.target, path.display());
+
+        let file = reqwest::get(url).await?.bytes().await?.to_vec();
 
         if hex::encode(Sha256::digest(&file)) != expected_digest {
             anyhow::bail!("sha256 mismatch for solc version {}", self.version);
@@ -106,29 +134,58 @@ impl GHDownloader {
 
 #[cfg(test)]
 mod tests {
-    use crate::{download::GHDownloader, list::List};
+    use crate::{download::SolcDownloader, list::List};
 
-    #[test]
+    #[tokio::test]
-    fn try_get_windows() {
+    async fn try_get_windows() {
-        let version = List::download(List::WINDOWS_URL).unwrap().latest_release;
+        let version = List::download(List::WINDOWS_URL)
-        GHDownloader::windows(version).download().unwrap();
+            .await
+            .unwrap()
+            .latest_release;
+        SolcDownloader::windows(version)
+            .await
+            .unwrap()
+            .download()
+            .await
+            .unwrap();
     }
 
-    #[test]
+    #[tokio::test]
-    fn try_get_macosx() {
+    async fn try_get_macosx() {
-        let version = List::download(List::MACOSX_URL).unwrap().latest_release;
+        let version = List::download(List::MACOSX_URL)
-        GHDownloader::macosx(version).download().unwrap();
+            .await
+            .unwrap()
+            .latest_release;
+        SolcDownloader::macosx(version)
+            .await
+            .unwrap()
+            .download()
+            .await
+            .unwrap();
     }
 
-    #[test]
+    #[tokio::test]
-    fn try_get_linux() {
+    async fn try_get_linux() {
-        let version = List::download(List::LINUX_URL).unwrap().latest_release;
+        let version = List::download(List::LINUX_URL)
-        GHDownloader::linux(version).download().unwrap();
+            .await
+            .unwrap()
+            .latest_release;
+        SolcDownloader::linux(version)
+            .await
+            .unwrap()
+            .download()
+            .await
+            .unwrap();
     }
 
-    #[test]
+    #[tokio::test]
-    fn try_get_wasm() {
+    async fn try_get_wasm() {
-        let version = List::download(List::WASM_URL).unwrap().latest_release;
+        let version = List::download(List::WASM_URL).await.unwrap().latest_release;
-        GHDownloader::wasm(version).download().unwrap();
+        SolcDownloader::wasm(version)
+            .await
+            .unwrap()
+            .download()
+            .await
+            .unwrap();
     }
 }

crates/solc-binaries/src/lib.rs

@@ -6,8 +6,9 @@
 use std::path::{Path, PathBuf};
 
 use cache::get_or_download;
-use download::GHDownloader;
+use download::SolcDownloader;
-use semver::Version;
+
+use revive_dt_common::types::VersionOrRequirement;
 
 pub mod cache;
 pub mod download;
@@ -18,22 +19,22 @@ pub mod list;
 ///
 /// Subsequent calls for the same version will use a cached artifact
 /// and not download it again.
-pub fn download_solc(
+pub async fn download_solc(
     cache_directory: &Path,
-    version: Version,
+    version: impl Into<VersionOrRequirement>,
     wasm: bool,
 ) -> anyhow::Result<PathBuf> {
     let downloader = if wasm {
-        GHDownloader::wasm(version)
+        SolcDownloader::wasm(version).await
     } else if cfg!(target_os = "linux") {
-        GHDownloader::linux(version)
+        SolcDownloader::linux(version).await
     } else if cfg!(target_os = "macos") {
-        GHDownloader::macosx(version)
+        SolcDownloader::macosx(version).await
     } else if cfg!(target_os = "windows") {
-        GHDownloader::windows(version)
+        SolcDownloader::windows(version).await
     } else {
         unimplemented!()
-    };
+    }?;
 
-    get_or_download(cache_directory, &downloader)
+    get_or_download(cache_directory, &downloader).await
 }