npm package discovery and stats viewer.

Discover Tips

  • General search

    [free text search, go nuts!]

  • Package details

    pkg:[package-name]

  • User packages

    @[username]

Sponsor

Optimize Toolset

I’ve always been into building performant and accessible sites, but lately I’ve been taking it extremely seriously. So much so that I’ve been building a tool to help me optimize and monitor the sites that I build to make sure that I’m making an attempt to offer the best experience to those who visit them. If you’re into performant, accessible and SEO friendly sites, you might like it too! You can check it out at Optimize Toolset.

About

Hi, 👋, I’m Ryan Hefner  and I built this site for me, and you! The goal of this site was to provide an easy way for me to check the stats on my npm packages, both for prioritizing issues and updates, and to give me a little kick in the pants to keep up on stuff.

As I was building it, I realized that I was actually using the tool to build the tool, and figured I might as well put this out there and hopefully others will find it to be a fast and useful way to search and browse npm packages as I have.

If you’re interested in other things I’m working on, follow me on Twitter or check out the open source projects I’ve been publishing on GitHub.

I am also working on a Twitter bot for this site to tweet the most popular, newest, random packages from npm. Please follow that account now and it will start sending out packages soon–ish.

Open Software & Tools

This site wouldn’t be possible without the immense generosity and tireless efforts from the people who make contributions to the world and share their work via open source initiatives. Thank you 🙏

© 2024 – Pkg Stats / Ryan Hefner

evm-breakpoints

v0.0.1

Published

Human-friendly interface for Ethereum VM breakpoints - debugging helper

Downloads

10

Readme

evm-breakpoints

Human-friendly interface for Ethereum VM breakpoints - debugging helper.

Example of library usage in tests:

const evm = reuqire('evm-breakpoints');

const logger = evm.breakpoint().add({
  contractFile: "./build/contracts/Simple.json", // we should take full compilation info from the given file
  lines: [21] // multiple lines can be specified as breakpoints
});

const debug = evm.iterator(web3, txHash, logger);
while (!debug.stopped()) {
  console.log(debug.get());
  debug.next();
}

please see examples/truffle for a full example of debugging local variables.

Example of library usage in web:

In web environment, you need to compile the contract, and then provide iterator source map from compiled version

var evm = window.evmBreakpoints;
evm
  .contract({ source: contractSoure, compiler: "latest"  })
  .on('ready', function(compiled) {
     var json = compiled.contracts[contractName];
     var logger = evm.breakpoint().add({ source, sourceMap: json.srcmapRuntime, lines: [21] });
     var debug = evm.iterator(web3, txHash, logger);
     while (!debug.stopped()) {
       console.log(debug.get());
       debug.next();
     }
  })
  .on('error', console.error);

please see examples/web/index.html for a full example of debugging local variables.

Disclaimer

Work of the library is based on experimental web3.debug.traceTransaction, so please keep following the updates

  • HTTP RPC "debug" api must be enabled https://github.com/ethereum/go-ethereum/wiki/Management-APIs#debug_tracetransaction

  • If you are receiving Error: missing trie node, in order to use trace api of geth you have to synchronize your node with --syncmode full

License

MIT. Anyone can copy, change, derive further work from this repository without any restrictions.