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LLL Stuff

Helpful stuff I've found about LLL Development

First you'll need to download install solc and lllc (solidity and lll compilers)

Building and Installing Ethereum Compilers

Would also be helpful to install geth and testrpc

Install all four globally

LLL Compiler Documentation

Walking Through LLL Contract

An Introduction to LLL for Ethereum Smart Contract Development

Developing

TBD

Deploying

Once you have your contract ready compile your contract

cd consensys contracts
lllc Structure.lll

This will output bytcode 3415600657fe5b6020604d600039600051600055602d8060206000396000f30060e060020a600035046020526332cafedd6020511415602b573415601f57fe5b60005460005260206000f35bfe

In order to get abi / function hashes create an interface in solidity then go into that folder

cd ../interface
solc --hashes Structure.sol

Will output

======= Structure.sol:Structure =======
Function signatures: 
32cafedd: getConstructorParameter()

That is where the keccak hash of the function (hash of "getConstructorParameter()" is 32cafedd)

Put that in contract

Then generate ABI to communicate with the contract

solc --abi Structure.sol

Will Output

Contract JSON ABI 
[{"constant":true,"inputs":[],"name":"getConstructorParameter","outputs":[{"name":"","type":"bytes32"}],"payable":false,"stateMutability":"view","type":"function"},{"inputs":[{"name":"param","type":"bytes32"}],"payable":false,"stateMutability":"nonpayable","type":"constructor"}]

Then run test rpc and attach to geth in another terminal and deploy contracts

ganache-cli
geth attach http://localhost:8545
var bin = '3415600657fe5b6020604d600039600051600055602d8060206000396000f30060e060020a600035046020526332cafedd6020511415602b573415601f57fe5b60005460005260206000f35bfe'
var abi = [{"constant":true,"inputs":[],"name":"getConstructorParameter","outputs":[{"name":"","type":"bytes32"}],"payable":false,"stateMutability":"view","type":"function"},{"inputs":[{"name":"param","type":"bytes32"}],"payable":false,"stateMutability":"nonpayable","type":"constructor"}]
var Structure = web3.eth.contract(abi)
var contract = Structure.new("test", {data: bin, from: web3.eth.coinbase, gas: 100000})
contract.getConstructorParameter()

Well played

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Ethereum LLL contract practice

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