srcmap-symbolicate 0.3.0

Stack trace symbolication using source maps
Documentation

srcmap-symbolicate

crates.io docs.rs

Stack trace symbolication using source maps.

Parses stack traces from V8 (Chrome, Node.js), SpiderMonkey (Firefox), and JavaScriptCore (Safari), resolves each frame through source maps, and produces readable output. Built for error monitoring, crash reporting, and debugging services.

Usage

use srcmap_symbolicate::{symbolicate, parse_stack_trace};
use srcmap_sourcemap::SourceMap;

let stack = "Error: oops\n    at foo (bundle.js:10:5)\n    at bar (bundle.js:20:10)";

// Parse without symbolication
let frames = parse_stack_trace(stack);
assert_eq!(frames[0].function_name.as_deref(), Some("foo"));
assert_eq!(frames[0].file, "bundle.js");

// Symbolicate with a source map loader
let result = symbolicate(stack, |file| {
    let json = std::fs::read_to_string(format!("{file}.map")).ok()?;
    SourceMap::from_json(&json).ok()
});

println!("{result}"); // Pretty-printed symbolicated stack

API

Function Description
parse_stack_trace(input) Parse into Vec<StackFrame>
parse_stack_trace_full(input) Parse into ParsedStack (message + frames)
symbolicate(stack, loader) Parse and resolve through source maps
symbolicate_batch(stacks, maps) Batch symbolication with pre-loaded maps
resolve_by_debug_id(id, maps) Find a source map by its ECMA-426 debug ID
to_json(stack) Serialize a SymbolicatedStack to JSON

Supported stack trace formats

Engine Example format
V8 (Chrome, Node.js) at functionName (file:line:column)
SpiderMonkey (Firefox) functionName@file:line:column
JavaScriptCore (Safari) functionName@file:line:column

Part of srcmap

See the main repo for the full source map SDK.

License

MIT