solc

What is solc?

The solc npm package is a JavaScript binding for the Solidity compiler. It allows developers to compile Solidity code from within a JavaScript environment, making it easier to integrate smart contract compilation into web applications, development tools, and automated scripts.

What are solc's main functionalities?

Compile Solidity Source Code

This feature allows you to compile Solidity source code. The code sample demonstrates how to compile a simple Solidity contract using the solc package.

const solc = require('solc');
const source = 'contract SimpleStorage { uint storedData; function set(uint x) public { storedData = x; } function get() public view returns (uint) { return storedData; } }';
const input = {
  language: 'Solidity',
  sources: {
    'SimpleStorage.sol': {
      content: source
    }
  },
  settings: {
    outputSelection: {
      '*': {
        '*': ['*']
      }
    }
  }
};
const output = JSON.parse(solc.compile(JSON.stringify(input)));
console.log(output);

Get Compiler Version

This feature allows you to retrieve the version of the Solidity compiler being used. The code sample demonstrates how to get the compiler version using the solc package.

const solc = require('solc');
console.log(solc.version());

Compile with Specific Compiler Version

This feature allows you to compile Solidity code using a specific version of the Solidity compiler. The code sample demonstrates how to compile a contract using a specific compiler version.

const solc = require('solc');
const solcVersion = 'v0.8.6+commit.11564f7e';
const solcjs = require(`solc/soljson-${solcVersion}.js`);
const input = {
  language: 'Solidity',
  sources: {
    'SimpleStorage.sol': {
      content: 'contract SimpleStorage { uint storedData; function set(uint x) public { storedData = x; } function get() public view returns (uint) { return storedData; } }'
    }
  },
  settings: {
    outputSelection: {
      '*': {
        '*': ['*']
      }
    }
  }
};
const output = JSON.parse(solcjs.compile(JSON.stringify(input)));
console.log(output);

Other packages similar to solc

truffle

Truffle is a development environment, testing framework, and asset pipeline for Ethereum. It provides a suite of tools for developing smart contracts, including compilation, linking, deployment, and binary management. Unlike solc, which focuses solely on compilation, Truffle offers a more comprehensive suite of tools for the entire smart contract development lifecycle.

hardhat

Hardhat is a development environment for Ethereum that helps developers manage and automate the recurring tasks inherent to building smart contracts and DApps. It includes a built-in Solidity compiler, but also offers additional features like task runners, testing, and debugging. Hardhat provides a more integrated development experience compared to solc, which is focused on compilation.

embark

Embark is a framework for developing and deploying decentralized applications (DApps) that integrates with Ethereum blockchains. It includes a Solidity compiler, but also offers features for managing smart contract deployment, testing, and communication with decentralized storage and messaging systems. Embark provides a broader range of functionalities compared to solc, which is specialized in compilation.

README

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