Use the solc version required in tests rather than one on PATH

Cargo.lock

@@ -4526,6 +4526,7 @@ dependencies = [
  "revive-dt-node",
  "revive-dt-node-interaction",
  "revive-dt-report",
+ "revive-dt-solc-binaries",
  "semver 1.0.26",
  "serde",
  "serde_json",

crates/common/src/types/version_or_requirement.rs

@@ -6,6 +6,42 @@ pub enum VersionOrRequirement {
     Requirement(VersionReq),
 }
 
+impl VersionOrRequirement {
+    /// A helper function to convert a [`semver::Version`] into a [`semver::VersionReq`].
+    pub fn version_to_requirement(version: &Version) -> VersionReq {
+        // Ignoring "build" metadata in the version, we can turn
+        // it into a requirement which is an exact match for the
+        // given version and nothing else:
+        VersionReq {
+            comparators: vec![semver::Comparator {
+                op: semver::Op::Exact,
+                major: version.major,
+                minor: Some(version.minor),
+                patch: Some(version.patch),
+                pre: version.pre.clone(),
+            }],
+        }
+    }
+}
+
+impl serde::Serialize for VersionOrRequirement {
+    fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>
+    where
+        S: serde::Serializer,
+    {
+        match self {
+            VersionOrRequirement::Version(v) => serializer.serialize_str(&v.to_string()),
+            VersionOrRequirement::Requirement(r) => serializer.serialize_str(&r.to_string()),
+        }
+    }
+}
+
+impl Default for VersionOrRequirement {
+    fn default() -> Self {
+        VersionOrRequirement::Requirement(VersionReq::STAR)
+    }
+}
+
 impl From<Version> for VersionOrRequirement {
     fn from(value: Version) -> Self {
         Self::Version(value)
@@ -18,24 +54,45 @@ impl From<VersionReq> for VersionOrRequirement {
     }
 }
 
+impl From<VersionOrRequirement> for VersionReq {
+    fn from(value: VersionOrRequirement) -> Self {
+        match value {
+            VersionOrRequirement::Version(version) => {
+                VersionOrRequirement::version_to_requirement(&version)
+            }
+            VersionOrRequirement::Requirement(version_req) => version_req,
+        }
+    }
+}
+
 impl TryFrom<VersionOrRequirement> for Version {
     type Error = anyhow::Error;
 
     fn try_from(value: VersionOrRequirement) -> Result<Self, Self::Error> {
-        let VersionOrRequirement::Version(version) = value else {
+        match value {
-            anyhow::bail!("Version or requirement was not a version");
+            VersionOrRequirement::Version(version) => Ok(version),
-        };
+            VersionOrRequirement::Requirement(mut version_req) => {
-        Ok(version)
+                if version_req.comparators.len() != 1 {
-    }
+                    anyhow::bail!(
-}
+                        "The version requirement in VersionOrRequirement is not a single exact version"
-
+                    );
-impl TryFrom<VersionOrRequirement> for VersionReq {
+                }
-    type Error = anyhow::Error;
+
-
+                let c = version_req.comparators.pop().unwrap();
-    fn try_from(value: VersionOrRequirement) -> Result<Self, Self::Error> {
+                let (semver::Op::Exact, Some(minor), Some(patch)) = (c.op, c.minor, c.patch) else {
-        let VersionOrRequirement::Requirement(requirement) = value else {
+                    anyhow::bail!(
-            anyhow::bail!("Version or requirement was not a requirement");
+                        "The version requirement in VersionOrRequirement is not an exact version"
-        };
+                    );
-        Ok(requirement)
+                };
+
+                Ok(Version {
+                    major: c.major,
+                    minor,
+                    patch,
+                    pre: c.pre,
+                    build: Default::default(),
+                })
+            }
+        }
     }
 }

crates/compiler/src/lib.rs

@@ -4,6 +4,7 @@
 //! - Polkadot revive Wasm compiler
 
 mod constants;
+mod utils;
 
 use std::{
     collections::HashMap,
@@ -13,12 +14,11 @@ use std::{
 
 use alloy::json_abi::JsonAbi;
 use alloy_primitives::Address;
-use semver::Version;
+use semver::VersionReq;
 use serde::{Deserialize, Serialize};
 
 use revive_common::EVMVersion;
 use revive_dt_common::cached_fs::read_to_string;
-use revive_dt_common::types::VersionOrRequirement;
 use revive_dt_config::Arguments;
 
 // Re-export this as it's a part of the compiler interface.
@@ -40,28 +40,20 @@ pub trait SolidityCompiler {
         additional_options: Self::Options,
     ) -> impl Future<Output = anyhow::Result<CompilerOutput>>;
 
-    fn new(solc_executable: PathBuf) -> Self;
+    /// Instantiate a new compiler.
-
+    fn new(config: &Arguments) -> Self;
-    fn get_compiler_executable(
-        config: &Arguments,
-        version: impl Into<VersionOrRequirement>,
-    ) -> impl Future<Output = anyhow::Result<PathBuf>>;
-
-    fn version(&self) -> impl Future<Output = anyhow::Result<Version>>;
 
     /// Does the compiler support the provided mode and version settings?
-    fn supports_mode(
+    fn supports_mode(optimize_setting: ModeOptimizerSetting, pipeline: ModePipeline) -> bool;
-        compiler_version: &Version,
-        optimize_setting: ModeOptimizerSetting,
-        pipeline: ModePipeline,
-    ) -> bool;
 }
 
 /// The generic compilation input configuration.
-#[derive(Debug, Clone, Serialize, Deserialize)]
+#[derive(Debug, Clone, Serialize)]
 pub struct CompilerInput {
+    pub wasm: bool,
     pub pipeline: Option<ModePipeline>,
     pub optimization: Option<ModeOptimizerSetting>,
+    pub solc_version: Option<VersionReq>,
     pub evm_version: Option<EVMVersion>,
     pub allow_paths: Vec<PathBuf>,
     pub base_path: Option<PathBuf>,
@@ -84,12 +76,6 @@ pub struct Compiler<T: SolidityCompiler> {
     additional_options: T::Options,
 }
 
-impl Default for Compiler<solc::Solc> {
-    fn default() -> Self {
-        Self::new()
-    }
-}
-
 impl<T> Compiler<T>
 where
     T: SolidityCompiler,
@@ -97,8 +83,10 @@ where
     pub fn new() -> Self {
         Self {
             input: CompilerInput {
+                wasm: Default::default(),
                 pipeline: Default::default(),
                 optimization: Default::default(),
+                solc_version: Default::default(),
                 evm_version: Default::default(),
                 allow_paths: Default::default(),
                 base_path: Default::default(),
@@ -110,6 +98,16 @@ where
         }
     }
 
+    pub fn with_wasm(mut self, value: bool) -> Self {
+        self.input.wasm = value;
+        self
+    }
+
+    pub fn with_solc_version_req(mut self, value: impl Into<Option<VersionReq>>) -> Self {
+        self.input.solc_version = value.into();
+        self
+    }
+
     pub fn with_optimization(mut self, value: impl Into<Option<ModeOptimizerSetting>>) -> Self {
         self.input.optimization = value.into();
         self
@@ -177,11 +175,8 @@ where
         callback(self)
     }
 
-    pub async fn try_build(
+    pub async fn try_build(self, config: &Arguments) -> anyhow::Result<CompilerOutput> {
-        self,
+        T::new(config)
-        compiler_path: impl AsRef<Path>,
-    ) -> anyhow::Result<CompilerOutput> {
-        T::new(compiler_path.as_ref().to_path_buf())
             .build(self.input, self.additional_options)
             .await
     }
@@ -191,6 +186,15 @@ where
     }
 }
 
+impl<T> Default for Compiler<T>
+where
+    T: SolidityCompiler,
+{
+    fn default() -> Self {
+        Self::new()
+    }
+}
+
 /// Defines how the compiler should handle revert strings.
 #[derive(
     Clone, Debug, Copy, PartialEq, Eq, PartialOrd, Ord, Hash, Default, Serialize, Deserialize,

crates/compiler/src/revive_resolc.rs

@@ -1,13 +1,8 @@
 //! Implements the [SolidityCompiler] trait with `resolc` for
 //! compiling contracts to PolkaVM (PVM) bytecode.
 
-use std::{
+use std::{path::PathBuf, process::Stdio};
-    path::PathBuf,
-    process::{Command, Stdio},
-    sync::LazyLock,
-};
 
-use dashmap::DashMap;
 use revive_dt_common::types::VersionOrRequirement;
 use revive_dt_config::Arguments;
 use revive_solc_json_interface::{
@@ -17,6 +12,7 @@ use revive_solc_json_interface::{
 };
 
 use super::constants::SOLC_VERSION_SUPPORTING_VIA_YUL_IR;
+use super::utils;
 use crate::{CompilerInput, CompilerOutput, ModeOptimizerSetting, ModePipeline, SolidityCompiler};
 
 use alloy::json_abi::JsonAbi;
@@ -31,6 +27,11 @@ use tokio::{io::AsyncWriteExt, process::Command as AsyncCommand};
 /// A wrapper around the `resolc` binary, emitting PVM-compatible bytecode.
 #[derive(Debug)]
 pub struct Resolc {
+    // Where to cache artifacts.
+    cache_directory: PathBuf,
+    // We'll use this version when no explicit version
+    // requirement is given in the test mode.
+    solc_version: Version,
     /// Path to the `resolc` executable
     resolc_path: PathBuf,
 }
@@ -42,8 +43,10 @@ impl SolidityCompiler for Resolc {
     async fn build(
         &self,
         CompilerInput {
+            wasm,
             pipeline,
             optimization,
+            solc_version,
             evm_version,
             allow_paths,
             base_path,
@@ -61,6 +64,19 @@ impl SolidityCompiler for Resolc {
             );
         }
 
+        let solc_version_req = solc_version
+            .unwrap_or_else(|| VersionOrRequirement::version_to_requirement(&self.solc_version));
+        let solc_path =
+            revive_dt_solc_binaries::download_solc(&self.cache_directory, solc_version_req, wasm)
+                .await?;
+        let solc_version = utils::solc_version(&solc_path).await?;
+
+        if solc_version < SOLC_VERSION_SUPPORTING_VIA_YUL_IR {
+            anyhow::bail!(
+                "We are trying to run the test with solc version {solc_version}, but require {SOLC_VERSION_SUPPORTING_VIA_YUL_IR} or greater"
+            );
+        }
+
         let input = SolcStandardJsonInput {
             language: SolcStandardJsonInputLanguage::Solidity,
             sources: sources
@@ -106,6 +122,8 @@ impl SolidityCompiler for Resolc {
             .stdin(Stdio::piped())
             .stdout(Stdio::piped())
             .stderr(Stdio::piped())
+            .arg("--solc")
+            .arg(&solc_path)
             .arg("--standard-json");
 
         if let Some(ref base_path) = base_path {
@@ -206,86 +224,17 @@ impl SolidityCompiler for Resolc {
         Ok(compiler_output)
     }
 
-    fn new(resolc_path: PathBuf) -> Self {
+    fn new(config: &Arguments) -> Self {
-        Resolc { resolc_path }
+        Resolc {
-    }
+            cache_directory: config.directory().to_path_buf(),
-
+            solc_version: config.solc.clone(),
-    async fn get_compiler_executable(
+            resolc_path: config.resolc.clone(),
-        config: &Arguments,
-        _version: impl Into<VersionOrRequirement>,
-    ) -> anyhow::Result<PathBuf> {
-        if !config.resolc.as_os_str().is_empty() {
-            return Ok(config.resolc.clone());
-        }
-
-        Ok(PathBuf::from("resolc"))
-    }
-
-    async fn version(&self) -> anyhow::Result<semver::Version> {
-        /// This is a cache of the path of the compiler to the version number of the compiler. We
-        /// choose to cache the version in this way rather than through a field on the struct since
-        /// compiler objects are being created all the time from the path and the compiler object is
-        /// not reused over time.
-        static VERSION_CACHE: LazyLock<DashMap<PathBuf, Version>> = LazyLock::new(Default::default);
-
-        match VERSION_CACHE.entry(self.resolc_path.clone()) {
-            dashmap::Entry::Occupied(occupied_entry) => Ok(occupied_entry.get().clone()),
-            dashmap::Entry::Vacant(vacant_entry) => {
-                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")?;
-
-                let version = Version::parse(version_string)?;
-
-                vacant_entry.insert(version.clone());
-
-                Ok(version)
-            }
         }
     }
 
-    fn supports_mode(
+    fn supports_mode(_optimize_setting: ModeOptimizerSetting, pipeline: ModePipeline) -> bool {
-        compiler_version: &Version,
+        // We only support the Y (IE compile via Yul IR) mode here. We must always compile
-        _optimize_setting: ModeOptimizerSetting,
+        // via Yul IR as resolc needs this to translate to LLVM IR and then RISCV.
-        pipeline: ModePipeline,
-    ) -> bool {
-        // We only support the Y (IE compile via Yul IR) mode here, which also means that we can
-        // only use solc version 0.8.13 and above. We must always compile via Yul IR as resolc
-        // needs this to translate to LLVM IR and then RISCV.
         pipeline == ModePipeline::ViaYulIR
-            && compiler_version >= &SOLC_VERSION_SUPPORTING_VIA_YUL_IR
-    }
-}
-
-#[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().await;
-
-        // Assert
-        let _ = version.expect("Failed to get version");
     }
 }

crates/compiler/src/solc.rs

@@ -1,18 +1,13 @@
 //! Implements the [SolidityCompiler] trait with solc for
 //! compiling contracts to EVM bytecode.
 
-use std::{
+use std::{path::PathBuf, process::Stdio};
-    path::PathBuf,
-    process::{Command, Stdio},
-    sync::LazyLock,
-};
 
-use dashmap::DashMap;
 use revive_dt_common::types::VersionOrRequirement;
 use revive_dt_config::Arguments;
-use revive_dt_solc_binaries::download_solc;
 
 use super::constants::SOLC_VERSION_SUPPORTING_VIA_YUL_IR;
+use super::utils;
 use crate::{CompilerInput, CompilerOutput, ModeOptimizerSetting, ModePipeline, SolidityCompiler};
 
 use anyhow::Context;
@@ -28,7 +23,11 @@ use tokio::{io::AsyncWriteExt, process::Command as AsyncCommand};
 
 #[derive(Debug)]
 pub struct Solc {
-    solc_path: PathBuf,
+    // Where to cache artifacts.
+    cache_directory: PathBuf,
+    // We'll use this version when no explicit version requirement
+    // is given in the test mode.
+    solc_version: Version,
 }
 
 impl SolidityCompiler for Solc {
@@ -38,8 +37,10 @@ impl SolidityCompiler for Solc {
     async fn build(
         &self,
         CompilerInput {
+            wasm,
             pipeline,
             optimization,
+            solc_version,
             evm_version,
             allow_paths,
             base_path,
@@ -49,7 +50,13 @@ impl SolidityCompiler for Solc {
         }: CompilerInput,
         _: Self::Options,
     ) -> anyhow::Result<CompilerOutput> {
-        let compiler_supports_via_ir = self.version().await? >= SOLC_VERSION_SUPPORTING_VIA_YUL_IR;
+        let solc_version = solc_version
+            .unwrap_or_else(|| VersionOrRequirement::version_to_requirement(&self.solc_version));
+        let solc_path =
+            revive_dt_solc_binaries::download_solc(&self.cache_directory, solc_version, wasm)
+                .await?;
+        let compiler_supports_via_ir =
+            utils::solc_version(&solc_path).await? >= SOLC_VERSION_SUPPORTING_VIA_YUL_IR;
 
         // Be careful to entirely omit the viaIR field if the compiler does not support it,
         // as it will error if you provide fields it does not know about. Because
@@ -115,7 +122,7 @@ impl SolidityCompiler for Solc {
             },
         };
 
-        let mut command = AsyncCommand::new(&self.solc_path);
+        let mut command = AsyncCommand::new(&solc_path);
         command
             .stdin(Stdio::piped())
             .stdout(Stdio::piped())
@@ -199,110 +206,16 @@ impl SolidityCompiler for Solc {
         Ok(compiler_output)
     }
 
-    fn new(solc_path: PathBuf) -> Self {
+    fn new(config: &Arguments) -> Self {
-        Self { solc_path }
+        Self {
-    }
+            cache_directory: config.directory().to_path_buf(),
-
+            solc_version: config.solc.clone(),
-    async fn get_compiler_executable(
-        config: &Arguments,
-        version: impl Into<VersionOrRequirement>,
-    ) -> anyhow::Result<PathBuf> {
-        let path = download_solc(config.directory(), version, config.wasm).await?;
-        Ok(path)
-    }
-
-    async fn version(&self) -> anyhow::Result<semver::Version> {
-        /// This is a cache of the path of the compiler to the version number of the compiler. We
-        /// choose to cache the version in this way rather than through a field on the struct since
-        /// compiler objects are being created all the time from the path and the compiler object is
-        /// not reused over time.
-        static VERSION_CACHE: LazyLock<DashMap<PathBuf, Version>> = LazyLock::new(Default::default);
-
-        match VERSION_CACHE.entry(self.solc_path.clone()) {
-            dashmap::Entry::Occupied(occupied_entry) => Ok(occupied_entry.get().clone()),
-            dashmap::Entry::Vacant(vacant_entry) => {
-                // 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")?;
-
-                let version = Version::parse(version_string)?;
-
-                vacant_entry.insert(version.clone());
-
-                Ok(version)
-            }
         }
     }
 
-    fn supports_mode(
+    fn supports_mode(_optimize_setting: ModeOptimizerSetting, pipeline: ModePipeline) -> bool {
-        compiler_version: &Version,
-        _optimize_setting: ModeOptimizerSetting,
-        pipeline: ModePipeline,
-    ) -> bool {
         // solc 0.8.13 and above supports --via-ir, and less than that does not. Thus, we support mode E
         // (ie no Yul IR) in either case, but only support Y (via Yul IR) if the compiler is new enough.
-        pipeline == ModePipeline::ViaEVMAssembly
+        pipeline == ModePipeline::ViaEVMAssembly || pipeline == ModePipeline::ViaYulIR
-            || (pipeline == ModePipeline::ViaYulIR
-                && compiler_version >= &SOLC_VERSION_SUPPORTING_VIA_YUL_IR)
-    }
-}
-
-#[cfg(test)]
-mod test {
-    use super::*;
-
-    #[tokio::test]
-    async fn compiler_version_can_be_obtained() {
-        // Arrange
-        let args = Arguments::default();
-        let path = Solc::get_compiler_executable(&args, Version::new(0, 7, 6))
-            .await
-            .unwrap();
-        let compiler = Solc::new(path);
-
-        // Act
-        let version = compiler.version().await;
-
-        // 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();
-        let path = Solc::get_compiler_executable(&args, Version::new(0, 4, 21))
-            .await
-            .unwrap();
-        let compiler = Solc::new(path);
-
-        // Act
-        let version = compiler.version().await;
-
-        // Assert
-        assert_eq!(
-            version.expect("Failed to get version"),
-            Version::new(0, 4, 21)
-        )
     }
 }

crates/compiler/src/utils.rs

@@ -0,0 +1,50 @@
+use std::{
+    path::{Path, PathBuf},
+    process::{Command, Stdio},
+    sync::LazyLock,
+};
+
+use anyhow::Context;
+use dashmap::DashMap;
+use semver::Version;
+
+/// Fetch the solc version given a path to the executable
+pub async fn solc_version(solc_path: &Path) -> anyhow::Result<semver::Version> {
+    /// This is a cache of the path of the compiler to the version number of the compiler. We
+    /// choose to cache the version in this way rather than through a field on the struct since
+    /// compiler objects are being created all the time from the path and the compiler object is
+    /// not reused over time.
+    static VERSION_CACHE: LazyLock<DashMap<PathBuf, Version>> = LazyLock::new(Default::default);
+
+    match VERSION_CACHE.entry(solc_path.to_path_buf()) {
+        dashmap::Entry::Occupied(occupied_entry) => Ok(occupied_entry.get().clone()),
+        dashmap::Entry::Vacant(vacant_entry) => {
+            // 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(solc_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")?;
+
+            let version = Version::parse(version_string)?;
+
+            vacant_entry.insert(version.clone());
+
+            Ok(version)
+        }
+    }
+}

crates/compiler/tests/lib.rs

@@ -1,16 +1,12 @@
 use std::path::PathBuf;
 
-use revive_dt_compiler::{Compiler, SolidityCompiler, revive_resolc::Resolc, solc::Solc};
+use revive_dt_compiler::{Compiler, 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();
 
     // Act
     let output = Compiler::<Solc>::new()
@@ -18,7 +14,7 @@ async fn contracts_can_be_compiled_with_solc() {
         .unwrap()
         .with_source("./tests/assets/array_one_element/main.sol")
         .unwrap()
-        .try_build(compiler_path)
+        .try_build(&args)
         .await;
 
     // Assert
@@ -49,9 +45,6 @@ async fn contracts_can_be_compiled_with_solc() {
 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()
@@ -59,7 +52,7 @@ async fn contracts_can_be_compiled_with_resolc() {
         .unwrap()
         .with_source("./tests/assets/array_one_element/main.sol")
         .unwrap()
-        .try_build(compiler_path)
+        .try_build(&args)
         .await;
 
     // Assert

crates/core/Cargo.toml

@@ -20,6 +20,7 @@ revive-dt-format = { workspace = true }
 revive-dt-node = { workspace = true }
 revive-dt-node-interaction = { workspace = true }
 revive-dt-report = { workspace = true }
+revive-dt-solc-binaries = { workspace = true }
 
 alloy = { workspace = true }
 anyhow = { workspace = true }

crates/core/src/cached_compiler.rs

@@ -9,9 +9,10 @@ use std::{
 
 use futures::FutureExt;
 use revive_dt_common::iterators::FilesWithExtensionIterator;
-use revive_dt_compiler::{Compiler, CompilerOutput, Mode, SolidityCompiler};
+use revive_dt_compiler::{Compiler, CompilerOutput, Mode};
 use revive_dt_config::Arguments;
 use revive_dt_format::metadata::{ContractIdent, ContractInstance, Metadata};
+use revive_dt_solc_binaries::solc_version;
 
 use alloy::{hex::ToHexExt, json_abi::JsonAbi, primitives::Address};
 use anyhow::{Error, Result};
@@ -57,14 +58,7 @@ impl CachedCompiler {
             Lazy::new(Default::default);
 
         let compiler_version_or_requirement = mode.compiler_version_to_use(config.solc.clone());
-        let compiler_path = <P::Compiler as SolidityCompiler>::get_compiler_executable(
+        let compiler_version = solc_version(compiler_version_or_requirement, config.wasm).await?;
-            config,
-            compiler_version_or_requirement,
-        )
-        .await?;
-        let compiler_version = <P::Compiler as SolidityCompiler>::new(compiler_path.clone())
-            .version()
-            .await?;
 
         let cache_key = CacheKey {
             platform_key: P::config_id().to_string(),
@@ -77,8 +71,8 @@ impl CachedCompiler {
             async move {
                 compile_contracts::<P>(
                     metadata.directory()?,
-                    compiler_path,
                     metadata.files_to_compile()?,
+                    config,
                     mode,
                     deployed_libraries,
                 )
@@ -138,8 +132,8 @@ impl CachedCompiler {
 
 async fn compile_contracts<P: Platform>(
     metadata_directory: impl AsRef<Path>,
-    compiler_path: impl AsRef<Path>,
     mut files_to_compile: impl Iterator<Item = PathBuf>,
+    config: &Arguments,
     mode: &Mode,
     deployed_libraries: Option<&HashMap<ContractInstance, (ContractIdent, Address, JsonAbi)>>,
 ) -> Result<CompilerOutput> {
@@ -149,6 +143,7 @@ async fn compile_contracts<P: Platform>(
         .collect::<Vec<_>>();
 
     Compiler::<P::Compiler>::new()
+        .with_solc_version_req(mode.version.clone())
         .with_allow_path(metadata_directory)
         // Handling the modes
         .with_optimization(mode.optimize_setting)
@@ -172,7 +167,7 @@ async fn compile_contracts<P: Platform>(
                     compiler.with_library(path, ident.as_str(), *address)
                 })
         })
-        .try_build(compiler_path)
+        .try_build(config)
         .await
 }
 

crates/core/src/main.rs

@@ -14,8 +14,8 @@ use alloy::{
 };
 use anyhow::Context;
 use clap::Parser;
+use futures::StreamExt;
 use futures::stream;
-use futures::{Stream, StreamExt};
 use indexmap::IndexMap;
 use revive_dt_node_interaction::EthereumNode;
 use temp_dir::TempDir;
@@ -163,7 +163,7 @@ where
 {
     let (report_tx, report_rx) = mpsc::unbounded_channel::<(Test<'_>, CaseResult)>();
 
-    let tests = prepare_tests::<L, F>(args, metadata_files);
+    let tests = prepare_tests::<L, F>(metadata_files);
     let driver_task = start_driver_task::<L, F>(args, tests, span, report_tx).await?;
     let status_reporter_task = start_reporter_task(report_rx);
 
@@ -172,17 +172,14 @@ where
     Ok(())
 }
 
-fn prepare_tests<'a, L, F>(
+fn prepare_tests<'a, L, F>(metadata_files: &'a [MetadataFile]) -> impl Iterator<Item = Test<'a>>
-    args: &Arguments,
-    metadata_files: &'a [MetadataFile],
-) -> impl Stream<Item = Test<'a>>
 where
     L: Platform,
     F: Platform,
     L::Blockchain: revive_dt_node::Node + Send + Sync + 'static,
     F::Blockchain: revive_dt_node::Node + Send + Sync + 'static,
 {
-    let filtered_tests = metadata_files
+    metadata_files
         .iter()
         .flat_map(|metadata_file| {
             metadata_file
@@ -289,19 +286,12 @@ where
             } else {
                 true
             }
-        });
+        })
-
+        .filter_map(move |test| {
-    stream::iter(filtered_tests)
+            let leader_support =
-        // Filter based on the compiler compatibility
+                L::Compiler::supports_mode(test.mode.optimize_setting, test.mode.pipeline);
-        .filter_map(move |test| async move {
+            let follower_support =
-            let leader_support = does_compiler_support_mode::<L>(args, &test.mode)
+                F::Compiler::supports_mode(test.mode.optimize_setting, test.mode.pipeline);
-                .await
-                .ok()
-                .unwrap_or(false);
-            let follower_support = does_compiler_support_mode::<F>(args, &test.mode)
-                .await
-                .ok()
-                .unwrap_or(false);
             let is_allowed = leader_support && follower_support;
 
             if !is_allowed {
@@ -317,25 +307,9 @@ where
         })
 }
 
-async fn does_compiler_support_mode<P: Platform>(
-    args: &Arguments,
-    mode: &Mode,
-) -> anyhow::Result<bool> {
-    let compiler_version_or_requirement = mode.compiler_version_to_use(args.solc.clone());
-    let compiler_path =
-        P::Compiler::get_compiler_executable(args, compiler_version_or_requirement).await?;
-    let compiler_version = P::Compiler::new(compiler_path.clone()).version().await?;
-
-    Ok(P::Compiler::supports_mode(
-        &compiler_version,
-        mode.optimize_setting,
-        mode.pipeline,
-    ))
-}
-
 async fn start_driver_task<'a, L, F>(
     args: &Arguments,
-    tests: impl Stream<Item = Test<'a>>,
+    tests: impl Iterator<Item = Test<'a>>,
     span: Span,
     report_tx: mpsc::UnboundedSender<(Test<'a>, CaseResult)>,
 ) -> anyhow::Result<impl Future<Output = ()>>
@@ -356,7 +330,7 @@ where
         .await?,
     );
 
-    Ok(tests.for_each_concurrent(
+    Ok(stream::iter(tests).for_each_concurrent(
         // We want to limit the concurrent tasks here because:
         //
         // 1. We don't want to overwhelm the nodes with too many requests, leading to responses timing out.

crates/solc-binaries/src/lib.rs

@@ -7,6 +7,7 @@ use std::path::{Path, PathBuf};
 
 use cache::get_or_download;
 use download::SolcDownloader;
+use semver::Version;
 
 use revive_dt_common::types::VersionOrRequirement;
 
@@ -14,6 +15,25 @@ pub mod cache;
 pub mod download;
 pub mod list;
 
+/// Return a [`SolcDownloader`] which can be used to download a `solc`
+/// binary or return the resolved version it will download.
+async fn downloader(
+    version: impl Into<VersionOrRequirement>,
+    wasm: bool,
+) -> anyhow::Result<SolcDownloader> {
+    if wasm {
+        SolcDownloader::wasm(version).await
+    } else if cfg!(target_os = "linux") {
+        SolcDownloader::linux(version).await
+    } else if cfg!(target_os = "macos") {
+        SolcDownloader::macosx(version).await
+    } else if cfg!(target_os = "windows") {
+        SolcDownloader::windows(version).await
+    } else {
+        unimplemented!()
+    }
+}
+
 /// Downloads the solc binary for Wasm is `wasm` is set, otherwise for
 /// the target platform.
 ///
@@ -24,17 +44,16 @@ pub async fn download_solc(
     version: impl Into<VersionOrRequirement>,
     wasm: bool,
 ) -> anyhow::Result<PathBuf> {
-    let downloader = if wasm {
+    let downloader = downloader(version, wasm).await?;
-        SolcDownloader::wasm(version).await
-    } else if cfg!(target_os = "linux") {
-        SolcDownloader::linux(version).await
-    } else if cfg!(target_os = "macos") {
-        SolcDownloader::macosx(version).await
-    } else if cfg!(target_os = "windows") {
-        SolcDownloader::windows(version).await
-    } else {
-        unimplemented!()
-    }?;
-
     get_or_download(cache_directory, &downloader).await
 }
+
+/// Return the version of solc that will be downloaded via [`download_solc`]
+/// given the version requirements and wasm flag.
+pub async fn solc_version(
+    version: impl Into<VersionOrRequirement>,
+    wasm: bool,
+) -> anyhow::Result<Version> {
+    let downloader = downloader(version, wasm).await?;
+    Ok(downloader.version.clone())
+}