Solidity, the Smart Contract Programming Language
Go to file
Daniel Kirchner 8451639f17
Merge pull request #8586 from ethereum/immutableExternalFunctionPointers
Disallow external function pointers as immutables.
2020-04-06 10:53:54 +02:00
.circleci [docs] Renaming CI job for documentation pragma version check 2020-04-01 18:34:20 +02:00
.github/ISSUE_TEMPLATE Remove PR template and empty general template. 2020-03-10 21:13:43 +01:00
cmake [build-system] Add -Wpessimizing-move & -Wredundant-move warnings. 2020-04-02 08:36:47 -05:00
docs reference-types.rst: Fix incorrectly wrapped line in the array slice section 2020-04-06 10:15:42 +02:00
libevmasm Legacy codegeneration for immutable state variables. 2020-03-24 16:45:25 +01:00
liblangutil Immutable is not reserved anymore. 2020-03-02 14:20:17 +01:00
libsolc Library libdevcore renamed to libsolutil. 2020-01-07 15:51:50 +01:00
libsolidity Disallow external function pointers as immutables. 2020-04-03 11:56:51 +02:00
libsolutil Remove byte-reinterpret conversion operator from vector_ref 2020-03-15 18:38:59 -04:00
libyul Legacy codegeneration for immutable state variables. 2020-03-24 16:45:25 +01:00
scripts Enabling pragma with > in minimum version check 2020-03-31 23:50:24 +02:00
snap Add wget to the build packages of the snap 2019-08-26 06:07:54 -06:00
solc CommandLineInterface: add storage-layout option to --combined-json 2020-03-26 11:38:28 +01:00
test Disallow external function pointers as immutables. 2020-04-03 11:56:51 +02:00
tools Apply modernize-use-nullptr. 2020-04-01 12:46:19 -05:00
.clang-format Improved .clang_format file. 2020-03-22 22:23:29 +01:00
.dockerignore adds .dockerignore file 2018-06-26 12:21:04 +02:00
.editorconfig Emacs and CMakeLists.txt administrivia 2019-04-11 13:43:03 -04:00
.gitattributes Create .gitattributes 2018-02-20 18:41:02 -05:00
.gitignore Assembly: Added missing source field to legacy assembly json output to complete the source reference 2020-02-18 10:22:34 +01:00
.travis.yml Update emscripten to 1.39.3 2019-11-29 12:55:02 +01:00
appveyor.yml Add hour and minute to bytecode repo directory names 2020-02-15 14:44:37 +01:00
Changelog.md Changelog entry for immutable variables. 2020-04-02 17:46:29 +02:00
CMakeLists.txt CMakeLists: ensure OSX deployment target supports std::visit 2020-03-26 11:41:51 +01:00
CODE_OF_CONDUCT.md Rename CONDUCT.md to CODE_OF_CONDUCT.md so that Github picks it up 2018-08-01 22:38:58 +01:00
codecov.yml Fix patch coverage settings 2019-02-20 16:09:00 +01:00
CODING_STYLE.md Improved .clang_format file. 2020-03-22 22:23:29 +01:00
CONTRIBUTING.md Link from CONTRIBUTING to the docs 2016-08-29 13:28:33 -04:00
LICENSE.txt Align license to those in file headers. 2016-06-08 22:57:30 +02:00
README.md Add a security policy and link it in README. 2020-03-26 11:55:44 +01:00
ReleaseChecklist.md Add pushing git tags to the release checklist 2019-07-04 11:24:56 +01:00
SECURITY.md Add a security policy and link it in README. 2020-03-26 11:55:44 +01:00

The Solidity Contract-Oriented Programming Language

You can talk to us on solidity at https://gitter.im/ethereum/solidity. Questions, feedback and suggestions are welcome!

Solidity is a statically typed, contract-oriented, high-level language for implementing smart contracts on the Ethereum platform.

Table of Contents

Background

Solidity is a statically-typed curly-braces programming language designed for developing smart contracts that run on the Ethereum Virtual Machine. Smart contracts are programs that are executed inside a peer-to-peer network where nobody has special authority over the execution, and thus they allow to implement tokens of value, ownership, voting and other kinds of logics.

When deploying contracts, you should use the latest released version of Solidity. This is because breaking changes as well as new features and bug fixes are introduced regularly. We currently use a 0.x version number to indicate this fast pace of change.

Build and Install

Instructions about how to build and install the Solidity compiler can be found in the Solidity documentation.

Example

A "Hello World" program in Solidity is of even less use than in other languages, but still:

pragma solidity ^0.6.0;

contract HelloWorld {
  function helloWorld() external pure returns (string memory) {
    return "Hello, World!";
  }
}

To get started with Solidity, you can use Remix, which is an browser-based IDE. Here are some example contracts:

  1. Voting
  2. Blind Auction
  3. Safe remote purchase
  4. Micropayment Channel

Documentation

The Solidity documentation is hosted at Read the docs.

Development

Solidity is still under development. Contributions are always welcome! Please follow the Developers Guide if you want to help.

You can find our current feature and bug priorities for forthcoming releases in the projects section.

Maintainers

License

Solidity is licensed under GNU General Public License v3.0.

Some third-party code has its own licensing terms.

Security

The security policy may be found here.