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refactor: trace module into trace renderer #5

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Merged
tinom9 merged 2 commits into from
Mar 4, 2026
Merged

refactor: trace module into trace renderer #5

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7fe0719
refactor: trace module into trace renderer
tinom9 Mar 4, 2026
de4273a
fix: missing import
tinom9 Mar 4, 2026
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329 changes: 3 additions & 326 deletions src/cli/trace.rs
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Original file line number Diff line number Diff line change
@@ -1,12 +1,7 @@
use crate::utils::{
abi_decoder,
color::Palette,
contract_resolver::ContractResolver,
event_formatter::{print_log, Log},
hex_utils, precompiles, rpc_url,
selector_resolver::SelectorResolver,
color::Palette, contract_resolver::ContractResolver, event_formatter::Log, hex_utils, rpc_url,
selector_resolver::SelectorResolver, trace_renderer,
};
use alloy_dyn_abi::{DynSolType, DynSolValue};
use clap::Parser;
use reqwest::blocking::Client;
use serde::Deserialize;
Expand Down Expand Up @@ -245,7 +240,7 @@ pub fn execute_and_print(payload: &serde_json::Value, opts: TraceOpts) -> Result

let mut selector_resolver = SelectorResolver::new(client.clone(), opts.resolve_selectors);
let mut contract_resolver = ContractResolver::new(client, chain_id, opts.resolve_contracts);
print_trace(
trace_renderer::print_trace(
&call_trace,
&mut selector_resolver,
&mut contract_resolver,
Expand Down Expand Up @@ -297,328 +292,10 @@ fn parse_rpc_response(resp: reqwest::blocking::Response) -> Result<CallTrace, Tr
.ok_or_else(|| TraceError::Decode("missing result field in RPC response".into()))
}

fn print_trace(
root: &CallTrace,
resolver: &mut SelectorResolver,
contract_resolver: &mut ContractResolver,
include_args: bool,
include_calldata: bool,
include_logs: bool,
palette: Palette,
) {
println!("Traces:");
print_call(
root,
"",
true,
resolver,
contract_resolver,
include_args,
include_calldata,
include_logs,
palette,
);
}

#[allow(
clippy::too_many_lines,
clippy::fn_params_excessive_bools,
clippy::too_many_arguments
)]
fn print_call(
node: &CallTrace,
prefix: &str,
is_last: bool,
resolver: &mut SelectorResolver,
contract_resolver: &mut ContractResolver,
include_args: bool,
include_calldata: bool,
include_logs: bool,
pal: Palette,
) {
let gas_used = node
.gas_used
.as_deref()
.and_then(hex_utils::parse_hex_u256)
.unwrap_or_default();

let to = node.to.as_deref().unwrap_or("?");
let precompile = precompiles::get_precompile_info(to);

let value = node
.value
.as_deref()
.and_then(hex_utils::parse_hex_u256)
.filter(|v| !v.is_zero());

let mut decoded: Option<Vec<(DynSolType, DynSolValue)>> = None;
let mut decode_attempted = false;

let is_create = node
.call_type
.as_deref()
.is_some_and(|t| t.eq_ignore_ascii_case("CREATE") || t.eq_ignore_ascii_case("CREATE2"));

let resolved_name = if !is_create && precompile.is_none() {
contract_resolver.resolve(to)
} else {
None
};

let (display_addr, sig) = if is_create {
(to, String::new())
} else if let Some((_name, signature)) = precompile {
if resolver.is_enabled() {
if include_args {
if let Some(input_hex) = node.input.as_deref() {
decode_attempted = true;
decoded = abi_decoder::decode_precompile_args(signature, input_hex);
}
}
("Precompiles", signature.to_string())
} else {
(to, String::new())
}
} else {
let selector = node.input.as_deref().and_then(extract_selector);

let sig = if let Some(sel) = selector.as_deref() {
if let Some(text_sig) = resolver.resolve(sel, node.input.as_deref()) {
if include_args {
if let Some(input_hex) = node.input.as_deref() {
decode_attempted = true;
decoded = abi_decoder::decode_function_args(&text_sig, input_hex);
}
}
text_sig
} else {
sel.to_string()
}
} else if resolver.is_enabled() {
"fallback()".to_string()
} else {
"0x".to_string()
};

let addr = resolved_name.as_deref().unwrap_or(to);
(addr, sig)
};

let call_desc = format_call_desc(display_addr, &sig, value, pal);

let call_type = node.call_type.as_deref().unwrap_or("").to_uppercase();

let call_type_suffix = match call_type.as_str() {
"DELEGATECALL" => pal.dim(" [delegatecall]"),
"STATICCALL" => pal.dim(" [staticcall]"),
"CALLCODE" => pal.dim(" [callcode]"),
"CREATE" => pal.dim(" [create]"),
"CREATE2" => pal.dim(" [create2]"),
_ if !call_type.is_empty() => pal.dim(" [call]"),
_ => String::new(),
};

let connector = if prefix.is_empty() {
""
} else if is_last {
"└─ "
} else {
"├─ "
};

let gas_display = pal.dim(&format!("[{gas_used}]"));
println!("{prefix}{connector}{gas_display} {call_desc}{call_type_suffix}");

if let Some(err) = &node.error {
let reason = node
.output
.as_deref()
.and_then(abi_decoder::decode_revert_reason)
.or_else(|| {
node.output
.as_deref()
.and_then(|o| abi_decoder::decode_custom_revert(o, resolver))
});
let err_msg = if let Some(reason) = reason {
pal.red(&format!("↳ error: {err} — {reason}"))
} else {
pal.red(&format!("↳ error: {err}"))
};
println!("{prefix} {err_msg}");
}

let child_prefix = format!("{}{}", prefix, if is_last { " " } else { "│ " });
let meta_prefix = &child_prefix;

let logs_count = if include_logs { node.logs.len() } else { 0 };
let total_items = logs_count + node.calls.len();
let mut item_idx = 0;

if include_logs {
for log in &node.logs {
let is_last_item = item_idx == total_items - 1;
print_log(log, &child_prefix, is_last_item, resolver, pal);
item_idx += 1;
}
}

let mut data_printed = false;

if let Some(args) = decoded {
if !args.is_empty() {
println!("{meta_prefix}{}", pal.dim("args:"));

if args.len() == 1 {
if let (DynSolType::Tuple(inner_types), DynSolValue::Tuple(inner_values)) = &args[0]
{
let len = inner_types.len().min(inner_values.len());
for i in 0..len {
print_arg(meta_prefix, 0, i, &inner_types[i], &inner_values[i], pal);
}
} else {
for (i, (ty, value)) in args.iter().enumerate() {
print_arg(meta_prefix, 0, i, ty, value, pal);
}
}
} else {
for (i, (ty, value)) in args.iter().enumerate() {
print_arg(meta_prefix, 0, i, ty, value, pal);
}
}
}
} else if decode_attempted {
if let Some(input) = &node.input {
let s = hex_utils::strip_0x(input);
if s.len() > 8 {
println!(
"{meta_prefix}{}",
pal.dim("[unable to decode args - complex or unsupported type]")
);
println!("{meta_prefix}{} {input}", pal.dim("data:"));
data_printed = true;
}
}
}

if include_calldata && !data_printed {
if let Some(input) = &node.input {
println!("{meta_prefix}{} {input}", pal.dim("data:"));
}
}

for child in &node.calls {
let is_last_item = item_idx == total_items - 1;
print_call(
child,
&child_prefix,
is_last_item,
resolver,
contract_resolver,
include_args,
include_calldata,
include_logs,
pal,
);
item_idx += 1;
}
}

/// Build the display string for a call: `address::functionName(args){value: N}`.
fn format_call_desc(
addr: &str,
sig: &str,
value: Option<alloy_primitives::U256>,
pal: Palette,
) -> String {
let colored_addr = pal.cyan(addr);
let value_part = value.map(|v| pal.yellow(&format!("{{value: {v}}}")));

let sig_part = if sig.is_empty() {
String::new()
} else if let Some(paren) = sig.find('(') {
format!("::{}{}", pal.bold(&sig[..paren]), &sig[paren..])
} else {
format!("::{sig}")
};

match value_part {
Some(val_s) if sig_part.is_empty() => format!("{colored_addr}{val_s}"),
Some(val_s) if sig.contains('(') => {
let paren = sig.find('(').unwrap();
format!(
"{colored_addr}::{}{val_s}{}",
pal.bold(&sig[..paren]),
&sig[paren..]
)
}
Some(val_s) => format!("{colored_addr}{sig_part}{val_s}"),
None if sig_part.is_empty() => colored_addr,
None => format!("{colored_addr}{sig_part}"),
}
}

fn extract_selector(input: &str) -> Option<String> {
let s = hex_utils::strip_0x(input);
s.get(..8).map(|sel| format!("0x{sel}"))
}

fn print_arg(
prefix: &str,
depth: usize,
index: usize,
ty: &DynSolType,
value: &DynSolValue,
pal: Palette,
) {
use DynSolType as T;
use DynSolValue as V;

let indent = " ".repeat(depth);
let type_str = pal.dim(&ty.to_string());

match (ty, value) {
(T::Tuple(inner_types), V::Tuple(inner_values)) => {
println!("{prefix}{indent}[{index}] {type_str}");
let len = inner_types.len().min(inner_values.len());
for i in 0..len {
print_arg(prefix, depth + 1, i, &inner_types[i], &inner_values[i], pal);
}
}
(
T::Array(inner_ty) | T::FixedArray(inner_ty, _),
V::Array(inner_values) | V::FixedArray(inner_values),
) => {
println!("{prefix}{indent}[{index}] {type_str}");
for (i, v) in inner_values.iter().enumerate() {
print_arg(prefix, depth + 1, i, inner_ty, v, pal);
}
}
_ => {
println!(
"{prefix}{indent}[{index}] {type_str} = {}",
abi_decoder::format_value(value)
);
}
}
}

#[cfg(test)]
mod tests {
use super::*;

#[test]
fn test_extract_selector() {
assert_eq!(
extract_selector("0xa9059cbb000000"),
Some("0xa9059cbb".to_string())
);
assert_eq!(
extract_selector("a9059cbb000000"),
Some("0xa9059cbb".to_string())
);
assert_eq!(extract_selector("0x123"), None);
}

#[test]
fn test_validate_address() {
assert!(validate_address("0xdAC17F958D2ee523a2206206994597C13D831ec7", "to").is_ok());
Expand Down
1 change: 1 addition & 0 deletions src/utils/mod.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -7,4 +7,5 @@ pub mod hex_utils;
pub mod precompiles;
pub mod rpc_url;
pub mod selector_resolver;
pub mod trace_renderer;
pub mod value_parser;
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