Cell Script

Cell Script is a newly designed language for smart-contract programming on the UTXO chain, which currently supports CKB.

Example

Here is an example of a simple cell script.

import "debug"
import "tx"
import "cell"

// main is the entry point of every cell script
function main() {
    tx.scriptVerify()
    var ins = tx.inputs()
    var outs = tx.outputs()

    var in_sum uint64
    var out_sum uint64

    for _, input := range ins {
        in_sum += input
        if in_sum < input {
            debug.Printf("input overflow")
            return 1
        }
    }

    for _, output := range outs {
        out_sum += output
        if out_sum < output {
            debug.Printf("output overflow")
            return 1
        }
    }

    if in_sum < out_sum {
        debug.Printf("Invalid Amount")
        return 1
    }
    
    return 0
}

The ideas and specs can be found here.

The internal discussion can be found here.

How to build (MacOS)

brew install go@1.22
brew install antlr@4
brew install openjdk@21
brew install llvm@16
brew tap riscv-software-src/riscv
brew install riscv-tools
export PATH=/opt/homebrew/bin:$PATH
brew install --cask spike
make build
source install.sh

cell <file>.cell
cargo install --git https://github.com/nervosnetwork/ckb-standalone-debugger ckb-debugger
ckb-debugger --bin <file>

How to Deploy?

git clone git@github.com:cell-labs/cell-cli.git
cd cell-cli
npm install
npm install -g .
# 1、Copy the cell bin file to the Cell-Cli folder: exmple: helloworld
# 2、Enter your CKB private key in cell.config.js
cell-cli deploy ./helloworld

douyixuan/cell-script

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