A standalone debugger enabling off-chain contract development
For Rust usage, refer to the included tests, they are quite self-explanatory.
The interesting part here, is that by compiling this project to a WASM target, you can run CKB's script debugger either in node.js or in a modern browser. We have included a short js package showcasing how you can do that.
To make this easier, we have published an npm package which you can use directly. The
js folder in the repo contains a minimal example calling the debugger. Follow those steps to set it up:
$ git clone https://github.com/nervosnetwork/ckb-standalone-debugger $ cd ckb-standalone-debugger $ cd js $ npm install $ npx webpack-dev-server
Note that you only need a valid
node.js installation to play with this example, you don't need a Rust installation.
Now use your browser to open http://localhost:8080(or whatever address
webpack-dev-server prompts in the terminal log), open developer tools, you will be able to find the script debugger's output.
Build notes for wasm32-unknown-unknown target
If you are building for
x86_64 target, everything should works ok. However, due to certain bugs, it's now only possible to build for the
wasm32-unknown-unknown target under Linux using LLVM 8. So if you do want to build the Rust package on your own, make sure you use Linux with LLVM 8 installation, have latest wasm-pack installed, then you can build via