diff options
Diffstat (limited to 'solidity.html.markdown')
| -rw-r--r-- | solidity.html.markdown | 24 |
1 files changed, 13 insertions, 11 deletions
diff --git a/solidity.html.markdown b/solidity.html.markdown index b657b6a1..acf750f7 100644 --- a/solidity.html.markdown +++ b/solidity.html.markdown @@ -4,6 +4,7 @@ filename: learnSolidity.sol contributors: - ["Nemil Dalal", "https://www.nemil.com"] - ["Joseph Chow", ""] + - ["Bhoomtawath Plinsut", "https://github.com/varshard"] --- Solidity lets you program on [Ethereum](https://www.ethereum.org/), a @@ -109,9 +110,9 @@ contract SimpleBank { // CapWords /// @notice Get balance /// @return The balance of the user - // 'constant' prevents function from editing state variables; + // 'view' (ex: constant) prevents function from editing state variables; // allows function to run locally/off blockchain - function balance() constant public returns (uint) { + function balance() view public returns (uint) { return balances[msg.sender]; } } @@ -341,25 +342,26 @@ function increment(uint x, uint y) returns (uint x, uint y) { // Call previous functon uint (a,b) = increment(1,1); -// 'constant' (alias for 'view') +// 'view' (alias for 'constant') // indicates that function does not/cannot change persistent vars -// Constant function execute locally, not on blockchain +// View function execute locally, not on blockchain +// Noted: constant keyword will soon be deprecated. uint y = 1; -function increment(uint x) constant returns (uint x) { +function increment(uint x) view returns (uint x) { x += 1; y += 1; // this line would fail - // y is a state variable, and can't be changed in a constant function + // y is a state variable, and can't be changed in a view function } -// 'pure' is more strict than 'constant', and does not +// 'pure' is more strict than 'view' or 'constant', and does not // even allow reading of state vars // The exact rules are more complicated, so see more about -// constant/pure: +// view/pure: // http://solidity.readthedocs.io/en/develop/contracts.html#view-functions // 'Function Visibility specifiers' -// These can be placed where 'constant' is, including: +// These can be placed where 'view' is, including: // public - visible externally and internally (default for function) // external - only visible externally (including a call made with this.) // private - only visible in the current contract @@ -829,7 +831,6 @@ someContractAddress.callcode('function_name'); ## Additional resources - [Solidity Docs](https://solidity.readthedocs.org/en/latest/) - [Smart Contract Best Practices](https://github.com/ConsenSys/smart-contract-best-practices) -- [Solidity Style Guide](https://ethereum.github.io/solidity//docs/style-guide/): Ethereum's style guide is heavily derived from Python's [pep8](https://www.python.org/dev/peps/pep-0008/) style guide. - [EthFiddle - The JsFiddle for Solidity](https://ethfiddle.com/) - [Browser-based Solidity Editor](https://remix.ethereum.org/) - [Gitter Solidity Chat room](https://gitter.im/ethereum/solidity) @@ -850,9 +851,10 @@ someContractAddress.callcode('function_name'); - [Hacking Distributed Blog](http://hackingdistributed.com/) ## Style -- Python's [PEP8](https://www.python.org/dev/peps/pep-0008/) is used as the baseline style guide, including its general philosophy +- [Solidity Style Guide](http://solidity.readthedocs.io/en/latest/style-guide.html): Ethereum's style guide is heavily derived from Python's [PEP 8](https://www.python.org/dev/peps/pep-0008/) style guide. ## Editors +- [Emacs Solidity Mode](https://github.com/ethereum/emacs-solidity) - [Vim Solidity](https://github.com/tomlion/vim-solidity) - Editor Snippets ([Ultisnips format](https://gist.github.com/nemild/98343ce6b16b747788bc)) |