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Created March 27, 2021 19:55
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Created using remix-ide: Realtime Ethereum Contract Compiler and Runtime. Load this file by pasting this gists URL or ID at https://remix.ethereum.org/#version=soljson-v0.8.1+commit.df193b15.js&optimize=false&runs=200&gist=
Raw
README.txt
REMIX EXAMPLE PROJECT
Remix example project is present when Remix loads very first time or there are no files existing in the File Explorer.
It contains 3 directories:
1. 'contracts': Holds three contracts with different complexity level, denoted with number prefix in file name.
2. 'scripts': Holds two scripts to deploy a contract. It is explained below.
3. 'tests': Contains one test file for 'Ballot' contract with unit tests in Solidity.
SCRIPTS
The 'scripts' folder contains example async/await scripts for deploying the 'Storage' contract.
For the deployment of any other contract, 'contractName' and 'constructorArgs' should be updated (along with other code if required).
Scripts have full access to the web3.js and ethers.js libraries.
To run a script, right click on file name in the file explorer and click 'Run'. Remember, Solidity file must already be compiled.
Output from script will appear in remix terminal.
Raw
contracts...artifacts...hadcoin_ico.json
{
"deploy": {
"VM:-": {
"linkReferences": {},
"autoDeployLib": true
},
"main:1": {
"linkReferences": {},
"autoDeployLib": true
},
"ropsten:3": {
"linkReferences": {},
"autoDeployLib": true
},
"rinkeby:4": {
"linkReferences": {},
"autoDeployLib": true
},
"kovan:42": {
"linkReferences": {},
"autoDeployLib": true
},
"görli:5": {
"linkReferences": {},
"autoDeployLib": true
},
"Custom": {
"linkReferences": {},
"autoDeployLib": true
}
},
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},
"name": "validator_revert_t_address",
"nodeType": "YulFunctionDefinition",
"parameters": [
{
"name": "value",
"nodeType": "YulTypedName",
"src": "1125:5:1",
"type": ""
}
],
"src": "1089:122:1"
}
]
},
"contents": "{\n\n function abi_decode_t_address(offset, end) -> value {\n value := calldataload(offset)\n validator_revert_t_address(value)\n }\n\n function abi_decode_tuple_t_address(headStart, dataEnd) -> value0 {\n if slt(sub(dataEnd, headStart), 32) { revert(0, 0) }\n\n {\n\n let offset := 0\n\n value0 := abi_decode_t_address(add(headStart, offset), dataEnd)\n }\n\n }\n\n function abi_encode_t_uint256_to_t_uint256_fromStack(value, pos) {\n mstore(pos, cleanup_t_uint256(value))\n }\n\n function abi_encode_tuple_t_uint256__to_t_uint256__fromStack_reversed(headStart , value0) -> tail {\n tail := add(headStart, 32)\n\n abi_encode_t_uint256_to_t_uint256_fromStack(value0, add(headStart, 0))\n\n }\n\n function cleanup_t_address(value) -> cleaned {\n cleaned := cleanup_t_uint160(value)\n }\n\n function cleanup_t_uint160(value) -> cleaned {\n cleaned := and(value, 0xffffffffffffffffffffffffffffffffffffffff)\n }\n\n function cleanup_t_uint256(value) -> cleaned {\n cleaned := value\n }\n\n function validator_revert_t_address(value) {\n if iszero(eq(value, cleanup_t_address(value))) { revert(0, 0) }\n }\n\n}\n",
"id": 1,
"language": "Yul",
"name": "#utility.yul"
}
],
"immutableReferences": {},
"linkReferences": {},
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"sourceMap": "26:937:0:-:0;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;843:118;;;;;;;;;;;;;:::i;:::-;;:::i;:::-;;;;;;;:::i;:::-;;;;;;;;157:36;;;:::i;:::-;;;;;;;:::i;:::-;;;;;;;;118:33;;;:::i;:::-;;;;;;;:::i;:::-;;;;;;;;77:35;;;:::i;:::-;;;;;;;:::i;:::-;;;;;;;;667:118;;;;;;;;;;;;;:::i;:::-;;:::i;:::-;;;;;;;:::i;:::-;;;;;;;;843;902:4;925:19;:29;945:8;925:29;;;;;;;;;;;;;;;;918:36;;843:118;;;:::o;157:36::-;;;;:::o;118:33::-;;;;:::o;77:35::-;;;;:::o;667:118::-;730:4;753:15;:25;769:8;753:25;;;;;;;;;;;;;;;;746:32;;667:118;;;:::o;7:139:1:-;;91:6;78:20;69:29;;107:33;134:5;107:33;:::i;:::-;59:87;;;;:::o;152:262::-;;260:2;248:9;239:7;235:23;231:32;228:2;;;276:1;273;266:12;228:2;319:1;344:53;389:7;380:6;369:9;365:22;344:53;:::i;:::-;334:63;;290:117;218:196;;;;:::o;420:118::-;507:24;525:5;507:24;:::i;:::-;502:3;495:37;485:53;;:::o;544:222::-;;675:2;664:9;660:18;652:26;;688:71;756:1;745:9;741:17;732:6;688:71;:::i;:::-;642:124;;;;:::o;772:96::-;;838:24;856:5;838:24;:::i;:::-;827:35;;817:51;;;:::o;874:126::-;;951:42;944:5;940:54;929:65;;919:81;;;:::o;1006:77::-;;1072:5;1061:16;;1051:32;;;:::o;1089:122::-;1162:24;1180:5;1162:24;:::i;:::-;1155:5;1152:35;1142:2;;1201:1;1198;1191:12;1142:2;1132:79;:::o"
},
"gasEstimates": {
"creation": {
"codeDepositCost": "136600",
"executionCost": "45201",
"totalCost": "181801"
},
"external": {
"equity_in_hadcoin(address)": "1607",
"equity_in_usd(address)": "1519",
"max_hadcoins()": "1173",
"total_hadcoin_bought()": "1129",
"usd_to_hadcoin()": "1151"
}
},
"methodIdentifiers": {
"equity_in_hadcoin(address)": "f64d49f4",
"equity_in_usd(address)": "10c51c1b",
"max_hadcoins()": "df7fedf7",
"total_hadcoin_bought()": "cf6e328a",
"usd_to_hadcoin()": "df6386e8"
}
},
"abi": [
{
"inputs": [
{
"internalType": "address",
"name": "investor",
"type": "address"
}
],
"name": "equity_in_hadcoin",
"outputs": [
{
"internalType": "uint256",
"name": "",
"type": "uint256"
}
],
"stateMutability": "nonpayable",
"type": "function"
},
{
"inputs": [
{
"internalType": "address",
"name": "investor",
"type": "address"
}
],
"name": "equity_in_usd",
"outputs": [
{
"internalType": "uint256",
"name": "",
"type": "uint256"
}
],
"stateMutability": "nonpayable",
"type": "function"
},
{
"inputs": [],
"name": "max_hadcoins",
"outputs": [
{
"internalType": "uint256",
"name": "",
"type": "uint256"
}
],
"stateMutability": "view",
"type": "function"
},
{
"inputs": [],
"name": "total_hadcoin_bought",
"outputs": [
{
"internalType": "uint256",
"name": "",
"type": "uint256"
}
],
"stateMutability": "view",
"type": "function"
},
{
"inputs": [],
"name": "usd_to_hadcoin",
"outputs": [
{
"internalType": "uint256",
"name": "",
"type": "uint256"
}
],
"stateMutability": "view",
"type": "function"
}
]
}
Raw
contracts...artifacts...hadcoin_ico_metadata.json
{
"compiler": {
"version": "0.8.1+commit.df193b15"
},
"language": "Solidity",
"output": {
"abi": [
{
"inputs": [
{
"internalType": "address",
"name": "investor",
"type": "address"
}
],
"name": "equity_in_hadcoin",
"outputs": [
{
"internalType": "uint256",
"name": "",
"type": "uint256"
}
],
"stateMutability": "nonpayable",
"type": "function"
},
{
"inputs": [
{
"internalType": "address",
"name": "investor",
"type": "address"
}
],
"name": "equity_in_usd",
"outputs": [
{
"internalType": "uint256",
"name": "",
"type": "uint256"
}
],
"stateMutability": "nonpayable",
"type": "function"
},
{
"inputs": [],
"name": "max_hadcoins",
"outputs": [
{
"internalType": "uint256",
"name": "",
"type": "uint256"
}
],
"stateMutability": "view",
"type": "function"
},
{
"inputs": [],
"name": "total_hadcoin_bought",
"outputs": [
{
"internalType": "uint256",
"name": "",
"type": "uint256"
}
],
"stateMutability": "view",
"type": "function"
},
{
"inputs": [],
"name": "usd_to_hadcoin",
"outputs": [
{
"internalType": "uint256",
"name": "",
"type": "uint256"
}
],
"stateMutability": "view",
"type": "function"
}
],
"devdoc": {
"kind": "dev",
"methods": {},
"version": 1
},
"userdoc": {
"kind": "user",
"methods": {},
"version": 1
}
},
"settings": {
"compilationTarget": {
"contracts/headcoin-ico.sol": "hadcoin_ico"
},
"evmVersion": "istanbul",
"libraries": {},
"metadata": {
"bytecodeHash": "ipfs"
},
"optimizer": {
"enabled": false,
"runs": 200
},
"remappings": []
},
"sources": {
"contracts/headcoin-ico.sol": {
"keccak256": "0xdde0f6e18d970c50a402c595aae6236930107b25c2ccdb192ac5392c88357d8f",
"urls": [
"bzz-raw://f38d24af4aef033c6ef5e4ab7b71c688ed44559bb01bba34b64f6bf0b60592ff",
"dweb:/ipfs/Qmdj7NNpBikz9X2WXcwCHXaSTxPUFPULNxmdXhNhDCA9q3"
]
}
},
"version": 1
}
Raw
contracts...headcoin-ico.sol
pragma solidity ^0.8.1;
contract hadcoin_ico {
// public variables
uint public max_hadcoins = 10000000;
uint public usd_to_hadcoin = 1000;
uint public total_hadcoin_bought = 0;
// private variables
// mapping from the investor address to the USD conversion of hadcoin
mapping(address => uint) investor_equity;
mapping(address => uint) investor_equity_usd;
// checking if an investor can buy more hadcoin
modifier can_buy_hadcoin(uint usd_invested) {
require(usd_invested * usd_to_hadcoin + total_hadcoin_bought <= max_hadcoins);
_;
}
// getting the equity in hadcoin of an investor
function equity_in_hadcoin(address investor) external returns (uint) {
return investor_equity[investor];
}
// getting the equity in USD of an investor
function equity_in_usd(address investor) external returns (uint) {
return investor_equity_usd[investor];
}
}
Raw
scripts...deploy_ethers.js
// Right click on the script name and hit "Run" to execute
(async () => {
try {
console.log('Running deployWithEthers script...')
const contractName = 'Storage' // Change this for other contract
const constructorArgs = [] // Put constructor args (if any) here for your contract
// Note that the script needs the ABI which is generated from the compilation artifact.
// Make sure contract is compiled and artifacts are generated
const artifactsPath = `browser/contracts/artifacts/${contractName}.json` // Change this for different path
const metadata = JSON.parse(await remix.call('fileManager', 'getFile', artifactsPath))
// 'web3Provider' is a remix global variable object
const signer = (new ethers.providers.Web3Provider(web3Provider)).getSigner()
let factory = new ethers.ContractFactory(metadata.abi, metadata.data.bytecode.object, signer);
let contract = await factory.deploy(...constructorArgs);
console.log('Contract Address: ', contract.address);
// The contract is NOT deployed yet; we must wait until it is mined
await contract.deployed()
console.log('Deployment successful.')
} catch (e) {
console.log(e.message)
}
})()
Raw
scripts...deploy_web3.js
// Right click on the script name and hit "Run" to execute
(async () => {
try {
console.log('Running deployWithWeb3 script...')
const contractName = 'Storage' // Change this for other contract
const constructorArgs = [] // Put constructor args (if any) here for your contract
// Note that the script needs the ABI which is generated from the compilation artifact.
// Make sure contract is compiled and artifacts are generated
const artifactsPath = `browser/contracts/artifacts/${contractName}.json` // Change this for different path
const metadata = JSON.parse(await remix.call('fileManager', 'getFile', artifactsPath))
const accounts = await web3.eth.getAccounts()
let contract = new web3.eth.Contract(metadata.abi)
contract = contract.deploy({
data: metadata.data.bytecode.object,
arguments: constructorArgs
})
const newContractInstance = await contract.send({
from: accounts[0],
gas: 1500000,
gasPrice: '30000000000'
})
console.log('Contract deployed at address: ', newContractInstance.options.address)
} catch (e) {
console.log(e.message)
}
})()
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