0e4ef539fc
* Added new Deploy Contract page // Use Brace in React #2276 * Adding Web Wrokers WIP * Compiling Solidity code // Getting mandatory params #2276 * Working editor and deployment #2276 * WIP : displaying source code * Added Solidity hightling, editor component in UI * Re-adding the standard Deploy Modal #2276 * Using MobX in Contract Edition // Save to Localstorage #2276 * User select Solidity version #2276 * Loading Solidity versions and closing worker properly #2276 * Adds export to solidity editor #2276 * Adding Import to Contract Editor #2276 * Persistent Worker => Don't load twice Solidity Code #2276 * UI Fixes * Editor tweaks * Added Details with ABI in Contract view * Adds Save capabilities to contract editor // WIP on Load #3279 * Working Load and Save contracts... #3231 * Adding loader of Snippets // Export with name #3279 * Added snippets / Importing from files and from URL * Fix wrong ID in saved Contract * Fix lint * Fixed Formal errors as warning #3279 * Fixing lint issues * Use NPM Module for valid URL (fixes linting issue too) * Don't clobber tests.
61 lines
3.1 KiB
Solidity
61 lines
3.1 KiB
Solidity
/*
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This Token Contract implements the standard token functionality (https://github.com/ethereum/EIPs/issues/20) as well as the following OPTIONAL extras intended for use by humans.
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In other words. This is intended for deployment in something like a Token Factory or Mist wallet, and then used by humans.
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Imagine coins, currencies, shares, voting weight, etc.
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Machine-based, rapid creation of many tokens would not necessarily need these extra features or will be minted in other manners.
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1) Initial Finite Supply (upon creation one specifies how much is minted).
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2) In the absence of a token registry: Optional Decimal, Symbol & Name.
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3) Optional approveAndCall() functionality to notify a contract if an approval() has occurred.
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.*/
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import "StandardToken.sol";
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contract HumanStandardToken is StandardToken {
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function () {
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//if ether is sent to this address, send it back.
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throw;
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}
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/* Public variables of the token */
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/*
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NOTE:
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The following variables are OPTIONAL vanities. One does not have to include them.
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They allow one to customise the token contract & in no way influences the core functionality.
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Some wallets/interfaces might not even bother to look at this information.
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*/
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string public name; //fancy name: eg Simon Bucks
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uint8 public decimals; //How many decimals to show. ie. There could 1000 base units with 3 decimals. Meaning 0.980 SBX = 980 base units. It's like comparing 1 wei to 1 ether.
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string public symbol; //An identifier: eg SBX
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string public version = 'H0.1'; //human 0.1 standard. Just an arbitrary versioning scheme.
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function HumanStandardToken(
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uint256 _initialAmount,
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string _tokenName,
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uint8 _decimalUnits,
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string _tokenSymbol
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) {
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balances[msg.sender] = _initialAmount; // Give the creator all initial tokens
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totalSupply = _initialAmount; // Update total supply
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name = _tokenName; // Set the name for display purposes
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decimals = _decimalUnits; // Amount of decimals for display purposes
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symbol = _tokenSymbol; // Set the symbol for display purposes
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}
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/* Approves and then calls the receiving contract */
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function approveAndCall(address _spender, uint256 _value, bytes _extraData) returns (bool success) {
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allowed[msg.sender][_spender] = _value;
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Approval(msg.sender, _spender, _value);
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//call the receiveApproval function on the contract you want to be notified. This crafts the function signature manually so one doesn't have to include a contract in here just for this.
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//receiveApproval(address _from, uint256 _value, address _tokenContract, bytes _extraData)
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//it is assumed that when does this that the call *should* succeed, otherwise one would use vanilla approve instead.
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if(!_spender.call(bytes4(bytes32(sha3("receiveApproval(address,uint256,address,bytes)"))), msg.sender, _value, this, _extraData)) { throw; }
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return true;
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}
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}
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