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Merge pull request #575 from oasisprotocol/mitjat/wrose-events
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analyzer/runtime: Support WROSE events Deposit, Withdrawal
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mitjat authored Dec 8, 2023
2 parents 71d3fda + 62df803 commit b91b623
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90 changes: 90 additions & 0 deletions analyzer/evmabi/contracts/WROSE.sol
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// NOTE: The exact WROSE source code is lost as of 2023-11-28.
// The code below is a "partial match", meaning it compiles to the exact bytecode that is
// deployed on Oasis (Sapphire+Emerald, testnet+mainnet, as of this writing) but it
// there are differences in comments, whitespace, variable names, and/or filenames.
//
// The contract is identical to the WETH contract except for the name and symbol:
// https://etherscan.io/token/0xc02aaa39b223fe8d0a0e5c4f27ead9083c756cc2#code

// SPDX-License-Identifier: MIT

// Copyright (C) 2015, 2016, 2017 Dapphub

// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.

// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.

// You should have received a copy of the GNU General Public License
// along with this program. If not, see <http://www.gnu.org/licenses/>.

pragma solidity ^0.4.18;

contract WROSE {
string public name = "Wrapped ROSE";
string public symbol = "wROSE";
uint8 public decimals = 18;

event Approval(address indexed src, address indexed guy, uint wad);
event Transfer(address indexed src, address indexed dst, uint wad);
event Deposit(address indexed dst, uint wad);
event Withdrawal(address indexed src, uint wad);

mapping(address => uint) public balanceOf;
mapping(address => mapping(address => uint)) public allowance;

function() public payable {
deposit();
}

function deposit() public payable {
balanceOf[msg.sender] += msg.value;
Deposit(msg.sender, msg.value);
}

function withdraw(uint wad) public {
require(balanceOf[msg.sender] >= wad);
balanceOf[msg.sender] -= wad;
msg.sender.transfer(wad);
Withdrawal(msg.sender, wad);
}

function totalSupply() public view returns (uint) {
return this.balance;
}

function approve(address guy, uint wad) public returns (bool) {
allowance[msg.sender][guy] = wad;
Approval(msg.sender, guy, wad);
return true;
}

function transfer(address dst, uint wad) public returns (bool) {
return transferFrom(msg.sender, dst, wad);
}

function transferFrom(
address src,
address dst,
uint wad
) public returns (bool) {
require(balanceOf[src] >= wad);

if (src != msg.sender && allowance[src][msg.sender] != uint(-1)) {
require(allowance[src][msg.sender] >= wad);
allowance[src][msg.sender] -= wad;
}

balanceOf[src] -= wad;
balanceOf[dst] += wad;

Transfer(src, dst, wad);

return true;
}
}
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