feat: identify internal function invocations in traces

crates/cast/bin/cmd/call.rs

@@ -43,6 +43,9 @@ pub struct CallArgs {
     #[arg(long, requires = "trace")]
     debug: bool,
 
+    #[arg(long, requires = "trace")]
+    decode_internal: bool,
+
     /// Labels to apply to the traces; format: `address:label`.
     /// Can only be used with `--trace`.
     #[arg(long, requires = "trace")]
@@ -106,6 +109,7 @@ impl CallArgs {
             trace,
             evm_version,
             debug,
+            decode_internal,
             labels,
             data,
         } = self;
@@ -159,7 +163,7 @@ impl CallArgs {
             }
 
             let (env, fork, chain) = TracingExecutor::get_fork_material(&config, evm_opts).await?;
-            let mut executor = TracingExecutor::new(env, fork, evm_version, debug);
+            let mut executor = TracingExecutor::new(env, fork, evm_version, debug, decode_internal);
 
             let value = tx.value.unwrap_or_default();
             let input = tx.inner.input.into_input().unwrap_or_default();
@@ -175,7 +179,7 @@ impl CallArgs {
                 ),
             };
 
-            handle_traces(trace, &config, chain, labels, debug).await?;
+            handle_traces(trace, &config, chain, labels, debug, decode_internal).await?;
 
             return Ok(());
         }

crates/cast/bin/cmd/run.rs

@@ -27,6 +27,10 @@ pub struct RunArgs {
     #[arg(long, short)]
     debug: bool,
 
+    /// Whether to identify internal functions in traces.
+    #[arg(long)]
+    decode_internal: bool,
+
     /// Print out opcode traces.
     #[arg(long, short)]
     trace_printer: bool,
@@ -142,7 +146,8 @@ impl RunArgs {
             }
         }
 
-        let mut executor = TracingExecutor::new(env.clone(), fork, evm_version, self.debug);
+        let mut executor =
+            TracingExecutor::new(env.clone(), fork, evm_version, self.debug, self.decode_internal);
         let mut env =
             EnvWithHandlerCfg::new_with_spec_id(Box::new(env.clone()), executor.spec_id());
 
@@ -220,7 +225,7 @@ impl RunArgs {
             }
         };
 
-        handle_traces(result, &config, chain, self.label, self.debug).await?;
+        handle_traces(result, &config, chain, self.label, self.debug, self.decode_internal).await?;
 
         Ok(())
     }

crates/cli/src/utils/cmd.rs

@@ -15,6 +15,7 @@ use foundry_evm::{
     executors::{DeployResult, EvmError, RawCallResult},
     opts::EvmOpts,
     traces::{
+        debug::DebugTraceIdentifier,
         identifier::{EtherscanIdentifier, SignaturesIdentifier},
         render_trace_arena, CallTraceDecoder, CallTraceDecoderBuilder, TraceKind, Traces,
     },
@@ -357,6 +358,7 @@ pub async fn handle_traces(
     chain: Option<Chain>,
     labels: Vec<String>,
     debug: bool,
+    decode_internal: bool,
 ) -> Result<()> {
     let labels = labels.iter().filter_map(|label_str| {
         let mut iter = label_str.split(':');
@@ -384,6 +386,18 @@ pub async fn handle_traces(
         }
     }
 
+    if decode_internal {
+        let sources = if let Some(etherscan_identifier) = &etherscan_identifier {
+            etherscan_identifier.get_compiled_contracts().await?
+        } else {
+            Default::default()
+        };
+
+        let identifier = DebugTraceIdentifier::new(sources);
+
+        decoder.debug_identifier = Some(identifier);
+    }
+
     if debug {
         let sources = if let Some(etherscan_identifier) = etherscan_identifier {
             etherscan_identifier.get_compiled_contracts().await?

crates/common/Cargo.toml

@@ -16,7 +16,6 @@ workspace = true
 foundry-block-explorers = { workspace = true, features = ["foundry-compilers"] }
 foundry-compilers.workspace = true
 foundry-config.workspace = true
-foundry-linking.workspace = true
 
 alloy-consensus.workspace = true
 alloy-contract.workspace = true

crates/common/src/compile.rs

@@ -1,28 +1,24 @@
 //! Support for compiling [foundry_compilers::Project]
 
-use crate::{compact_to_contract, term::SpinnerReporter, TestFunctionExt};
+use crate::{term::SpinnerReporter, TestFunctionExt};
 use comfy_table::{presets::ASCII_MARKDOWN, Attribute, Cell, CellAlignment, Color, Table};
-use eyre::{Context, Result};
+use eyre::Result;
 use foundry_block_explorers::contract::Metadata;
 use foundry_compilers::{
-    artifacts::{remappings::Remapping, BytecodeObject, ContractBytecodeSome, Libraries, Source},
+    artifacts::{remappings::Remapping, BytecodeObject, Source},
     compilers::{
-        multi::MultiCompilerLanguage,
         solc::{Solc, SolcCompiler},
         Compiler,
     },
     report::{BasicStdoutReporter, NoReporter, Report},
     Artifact, Project, ProjectBuilder, ProjectCompileOutput, ProjectPathsConfig, SolcConfig,
 };
-use foundry_linking::Linker;
 use num_format::{Locale, ToFormattedString};
-use rustc_hash::FxHashMap;
 use std::{
-    collections::{BTreeMap, HashMap},
+    collections::BTreeMap,
     fmt::Display,
     io::IsTerminal,
     path::{Path, PathBuf},
-    sync::Arc,
     time::Instant,
 };
 
@@ -261,132 +257,6 @@ impl ProjectCompiler {
     }
 }
 
-#[derive(Clone, Debug)]
-pub struct SourceData {
-    pub source: Arc<String>,
-    pub language: MultiCompilerLanguage,
-    pub name: String,
-}
-
-#[derive(Clone, Debug)]
-pub struct ArtifactData {
-    pub bytecode: ContractBytecodeSome,
-    pub build_id: String,
-    pub file_id: u32,
-}
-
-/// Contract source code and bytecode data used for debugger.
-#[derive(Clone, Debug, Default)]
-pub struct ContractSources {
-    /// Map over build_id -> file_id -> (source code, language)
-    pub sources_by_id: HashMap<String, FxHashMap<u32, SourceData>>,
-    /// Map over contract name -> Vec<(bytecode, build_id, file_id)>
-    pub artifacts_by_name: HashMap<String, Vec<ArtifactData>>,
-}
-
-impl ContractSources {
-    /// Collects the contract sources and artifacts from the project compile output.
-    pub fn from_project_output(
-        output: &ProjectCompileOutput,
-        root: impl AsRef<Path>,
-        libraries: Option<&Libraries>,
-    ) -> Result<Self> {
-        let mut sources = Self::default();
-
-        sources.insert(output, root, libraries)?;
-
-        Ok(sources)
-    }
-
-    pub fn insert<C: Compiler>(
-        &mut self,
-        output: &ProjectCompileOutput<C>,
-        root: impl AsRef<Path>,
-        libraries: Option<&Libraries>,
-    ) -> Result<()>
-    where
-        C::Language: Into<MultiCompilerLanguage>,
-    {
-        let root = root.as_ref();
-        let link_data = libraries.map(|libraries| {
-            let linker = Linker::new(root, output.artifact_ids().collect());
-            (linker, libraries)
-        });
-
-        for (id, artifact) in output.artifact_ids() {
-            if let Some(file_id) = artifact.id {
-                let artifact = if let Some((linker, libraries)) = link_data.as_ref() {
-                    linker.link(&id, libraries)?.into_contract_bytecode()
-                } else {
-                    artifact.clone().into_contract_bytecode()
-                };
-                let bytecode = compact_to_contract(artifact.clone().into_contract_bytecode())?;
-
-                self.artifacts_by_name.entry(id.name.clone()).or_default().push(ArtifactData {
-                    bytecode,
-                    build_id: id.build_id.clone(),
-                    file_id,
-                });
-            } else {
-                warn!(id = id.identifier(), "source not found");
-            }
-        }
-
-        // Not all source files produce artifacts, so we are populating sources by using build
-        // infos.
-        let mut files: BTreeMap<PathBuf, Arc<String>> = BTreeMap::new();
-        for (build_id, build) in output.builds() {
-            for (source_id, path) in &build.source_id_to_path {
-                let source_code = if let Some(source) = files.get(path) {
-                    source.clone()
-                } else {
-                    let source = Source::read(path).wrap_err_with(|| {
-                        format!("failed to read artifact source file for `{}`", path.display())
-                    })?;
-                    files.insert(path.clone(), source.content.clone());
-                    source.content
-                };
-
-                self.sources_by_id.entry(build_id.clone()).or_default().insert(
-                    *source_id,
-                    SourceData {
-                        source: source_code,
-                        language: build.language.into(),
-                        name: path.strip_prefix(root).unwrap_or(path).to_string_lossy().to_string(),
-                    },
-                );
-            }
-        }
-
-        Ok(())
-    }
-
-    /// Returns all sources for a contract by name.
-    pub fn get_sources(
-        &self,
-        name: &str,
-    ) -> Option<impl Iterator<Item = (&ArtifactData, &SourceData)>> {
-        self.artifacts_by_name.get(name).map(|artifacts| {
-            artifacts.iter().filter_map(|artifact| {
-                let source =
-                    self.sources_by_id.get(artifact.build_id.as_str())?.get(&artifact.file_id)?;
-                Some((artifact, source))
-            })
-        })
-    }
-
-    /// Returns all (name, bytecode, source) sets.
-    pub fn entries(&self) -> impl Iterator<Item = (&str, &ArtifactData, &SourceData)> {
-        self.artifacts_by_name.iter().flat_map(|(name, artifacts)| {
-            artifacts.iter().filter_map(|artifact| {
-                let source =
-                    self.sources_by_id.get(artifact.build_id.as_str())?.get(&artifact.file_id)?;
-                Some((name.as_str(), artifact, source))
-            })
-        })
-    }
-}
-
 // https://eips.ethereum.org/EIPS/eip-170
 const CONTRACT_SIZE_LIMIT: usize = 24576;
 
@@ -503,7 +373,7 @@ pub fn etherscan_project(
     let sources_path = target_path.join(&metadata.contract_name);
     metadata.source_tree().write_to(&target_path)?;
 
-    let mut settings = metadata.source_code.settings()?.unwrap_or_default();
+    let mut settings = metadata.settings()?;
 
     // make remappings absolute with our root
     for remapping in settings.remappings.iter_mut() {

crates/common/src/contracts.rs

@@ -88,9 +88,6 @@ pub struct ContractsByArtifact(Arc<BTreeMap<ArtifactId, ContractData>>);
 
 impl ContractsByArtifact {
     /// Creates a new instance by collecting all artifacts with present bytecode from an iterator.
-    ///
-    /// It is recommended to use this method with an output of
-    /// [foundry_linking::Linker::get_linked_artifacts].
     pub fn new(artifacts: impl IntoIterator<Item = (ArtifactId, CompactContractBytecode)>) -> Self {
         let map = artifacts
             .into_iter()

crates/debugger/src/tui/builder.rs

@@ -2,9 +2,9 @@
 
 use crate::Debugger;
 use alloy_primitives::Address;
-use foundry_common::{compile::ContractSources, evm::Breakpoints, get_contract_name};
+use foundry_common::{evm::Breakpoints, get_contract_name};
 use foundry_evm_core::debug::{DebugArena, DebugNodeFlat};
-use foundry_evm_traces::CallTraceDecoder;
+use foundry_evm_traces::{debug::ContractSources, CallTraceDecoder};
 use std::collections::HashMap;
 
 /// Debugger builder.