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* Linted files * Revert back to old artifacts structure * Fixed conflict with smock * fix dump, add ETH * lint * add janky find and replace * lint Co-authored-by: Kelvin Fichter <[email protected]>
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packages/contracts/contracts/optimistic-ethereum/OVM/precompiles/OVM_ETH.sol
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// SPDX-License-Identifier: MIT | ||
// +build ovm | ||
pragma solidity >0.6.0 <0.8.0; | ||
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/* Interface Imports */ | ||
import { iOVM_ERC20 } from "../../iOVM/precompiles/iOVM_ERC20.sol"; | ||
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/** | ||
* @title OVM_ETH | ||
* @dev L2 CONTRACT (COMPILED) | ||
*/ | ||
contract OVM_ETH is iOVM_ERC20 { | ||
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uint256 constant private MAX_UINT256 = 2**256 - 1; | ||
mapping (address => uint256) public balances; | ||
mapping (address => mapping (address => uint256)) public allowed; | ||
/* | ||
NOTE: | ||
The following variables are OPTIONAL vanities. One does not have to include them. | ||
They allow one to customise the token contract & in no way influences the core functionality. | ||
Some wallets/interfaces might not even bother to look at this information. | ||
*/ | ||
string public name; //fancy name: eg OVM Coin | ||
uint8 public decimals; //How many decimals to show. | ||
string public symbol; //An identifier: eg OVM | ||
uint256 public override totalSupply; | ||
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constructor( | ||
uint256 _initialAmount, | ||
string memory _tokenName, | ||
uint8 _decimalUnits, | ||
string memory _tokenSymbol | ||
) public { | ||
balances[msg.sender] = _initialAmount; // Give the creator all initial tokens | ||
totalSupply = _initialAmount; // Update total supply | ||
name = _tokenName; // Set the name for display purposes | ||
decimals = _decimalUnits; // Amount of decimals for display purposes | ||
symbol = _tokenSymbol; // Set the symbol for display purposes | ||
} | ||
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function transfer(address _to, uint256 _value) external override returns (bool success) { | ||
require(balances[msg.sender] >= _value); | ||
balances[msg.sender] -= _value; | ||
balances[_to] += _value; | ||
emit Transfer(msg.sender, _to, _value); | ||
return true; | ||
} | ||
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function transferFrom(address _from, address _to, uint256 _value) external override returns (bool success) { | ||
uint256 allowance = allowed[_from][msg.sender]; | ||
require(balances[_from] >= _value && allowance >= _value); | ||
balances[_to] += _value; | ||
balances[_from] -= _value; | ||
if (allowance < MAX_UINT256) { | ||
allowed[_from][msg.sender] -= _value; | ||
} | ||
emit Transfer(_from, _to, _value); | ||
return true; | ||
} | ||
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function balanceOf(address _owner) external view override returns (uint256 balance) { | ||
return balances[_owner]; | ||
} | ||
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function approve(address _spender, uint256 _value) external override returns (bool success) { | ||
allowed[msg.sender][_spender] = _value; | ||
emit Approval(msg.sender, _spender, _value); | ||
return true; | ||
} | ||
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function allowance(address _owner, address _spender) external view override returns (uint256 remaining) { | ||
return allowed[_owner][_spender]; | ||
} | ||
} |
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packages/contracts/contracts/optimistic-ethereum/OVM/precompiles/OVM_L2ToL1MessagePasser.sol
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52 changes: 52 additions & 0 deletions
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packages/contracts/contracts/optimistic-ethereum/iOVM/precompiles/iOVM_ERC20.sol
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// SPDX-License-Identifier: MIT | ||
// +build ovm | ||
pragma solidity >0.6.0 <0.8.0; | ||
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/** | ||
* @title iOVM_ERC20 | ||
*/ | ||
interface iOVM_ERC20 { | ||
/* This is a slight change to the ERC20 base standard. | ||
function totalSupply() constant returns (uint256 supply); | ||
is replaced with: | ||
uint256 public totalSupply; | ||
This automatically creates a getter function for the totalSupply. | ||
This is moved to the base contract since public getter functions are not | ||
currently recognised as an implementation of the matching abstract | ||
function by the compiler. | ||
*/ | ||
/// total amount of tokens | ||
function totalSupply() external view returns (uint256); | ||
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/// @param _owner The address from which the balance will be retrieved | ||
/// @return balance The balance | ||
function balanceOf(address _owner) external view returns (uint256 balance); | ||
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/// @notice send `_value` token to `_to` from `msg.sender` | ||
/// @param _to The address of the recipient | ||
/// @param _value The amount of token to be transferred | ||
/// @return success Whether the transfer was successful or not | ||
function transfer(address _to, uint256 _value) external returns (bool success); | ||
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/// @notice send `_value` token to `_to` from `_from` on the condition it is approved by `_from` | ||
/// @param _from The address of the sender | ||
/// @param _to The address of the recipient | ||
/// @param _value The amount of token to be transferred | ||
/// @return success Whether the transfer was successful or not | ||
function transferFrom(address _from, address _to, uint256 _value) external returns (bool success); | ||
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/// @notice `msg.sender` approves `_spender` to spend `_value` tokens | ||
/// @param _spender The address of the account able to transfer the tokens | ||
/// @param _value The amount of tokens to be approved for transfer | ||
/// @return success Whether the approval was successful or not | ||
function approve(address _spender, uint256 _value) external returns (bool success); | ||
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/// @param _owner The address of the account owning tokens | ||
/// @param _spender The address of the account able to transfer the tokens | ||
/// @return remaining Amount of remaining tokens allowed to spent | ||
function allowance(address _owner, address _spender) external view returns (uint256 remaining); | ||
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// solhint-disable-next-line no-simple-event-func-name | ||
event Transfer(address indexed _from, address indexed _to, uint256 _value); | ||
event Approval(address indexed _owner, address indexed _spender, uint256 _value); | ||
} |
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