Solidity

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Solidity is a contract-oriented, high-level language for implementing smart contracts. It was influenced by C++, Python and JavaScript and is designed to target the Ethereum Virtual Machine (EVM).

Solidity is statically typed, supports inheritance, libraries and complex user-defined types among other features.

As you will see, it is possible to create contracts for voting, crowdfunding, blind auctions, multi-signature wallets and more.

Warning

The solidity version for CPChain is 0.4.25. Other version is not guaranteed compatible with CPChain.

Note

The best way to try out Solidity right now is using Remix (it can take a while to load, please be patient). Remix is a web browser based IDE that allows you to write Solidity smart contracts, then deploy and run the smart contracts.

Warning

Since software is written by humans, it can have bugs. Thus, also smart contracts should be created following well-known best-practices in software development. This includes code review, testing, audits and correctness proofs. Also note that users are sometimes more confident in code than its authors. Finally, blockchains have their own things to watch out for, so please take a look at the section Security Considerations.

Translations

This documentation is translated into several languages by community volunteers, but the English version stands as a reference.

Available Solidity Integrations

  • Remix

    Browser-based IDE with integrated compiler and Solidity runtime environment without server-side components.

  • IntelliJ IDEA plugin

    Solidity plugin for IntelliJ IDEA (and all other JetBrains IDEs)

  • Visual Studio Extension

    Solidity plugin for Microsoft Visual Studio that includes the Solidity compiler.

  • Package for SublimeText — Solidity language syntax

    Solidity syntax highlighting for SublimeText editor.

  • Etheratom

    Plugin for the Atom editor that features syntax highlighting, compilation and a runtime environment (Backend node & VM compatible).

  • Atom Solidity Linter

    Plugin for the Atom editor that provides Solidity linting.

  • Atom Solium Linter

    Configurable Solidty linter for Atom using Solium as a base.

  • Solium

    Linter to identify and fix style and security issues in Solidity.

  • Solhint

    Solidity linter that provides security, style guide and best practice rules for smart contract validation.

  • Visual Studio Code extension

    Solidity plugin for Microsoft Visual Studio Code that includes syntax highlighting and the Solidity compiler.

  • Emacs Solidity

    Plugin for the Emacs editor providing syntax highlighting and compilation error reporting.

  • Vim Solidity

    Plugin for the Vim editor providing syntax highlighting.

  • Vim Syntastic

    Plugin for the Vim editor providing compile checking.

Discontinued:

  • Mix IDE

    Qt based IDE for designing, debugging and testing solidity smart contracts.

  • Ethereum Studio

    Specialized web IDE that also provides shell access to a complete Ethereum environment.

Solidity Tools

  • Dapp

    Build tool, package manager, and deployment assistant for Solidity.

  • Solidity REPL

    Try Solidity instantly with a command-line Solidity console.

  • solgraph

    Visualize Solidity control flow and highlight potential security vulnerabilities.

  • evmdis

    EVM Disassembler that performs static analysis on the bytecode to provide a higher level of abstraction than raw EVM operations.

  • Doxity

    Documentation Generator for Solidity.

Third-Party Solidity Parsers and Grammars

Language Documentation

On the next pages, we will first see a simple smart contract written in Solidity followed by the basics about blockchains and the Ethereum Virtual Machine.

The next section will explain several features of Solidity by giving useful example contracts Remember that you can always try out the contracts in your browser!

The last and most extensive section will cover all aspects of Solidity in depth.

If you still have questions, you can try searching or asking on the Ethereum Stackexchange site, or come to our gitter channel. Ideas for improving Solidity or this documentation are always welcome!

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