From 7c758da302baf80775876008958ec77055ab953a Mon Sep 17 00:00:00 2001
From: Aaron Buchwald <aaron.buchwald56@gmail.com>
Date: Tue, 15 Dec 2020 21:30:16 -0500
Subject: Remove contracts

---
 contracts/arc20.sol        | 150 ---------------------------------------------
 contracts/nativeAssets.sol |  20 ------
 2 files changed, 170 deletions(-)
 delete mode 100644 contracts/arc20.sol
 delete mode 100644 contracts/nativeAssets.sol

(limited to 'contracts')

diff --git a/contracts/arc20.sol b/contracts/arc20.sol
deleted file mode 100644
index d1af6a3..0000000
--- a/contracts/arc20.sol
+++ /dev/null
@@ -1,150 +0,0 @@
-// SPDX-License-Identifier: MIT
-
-pragma solidity >=0.6.0 <0.8.0;
-
-import {NativeAssets} from "./nativeAssets.sol";
-
-contract ARC20 {
-
-    mapping (address => uint256) private _balances;
-    mapping(address => mapping(address => uint256)) private _allowances;
-
-    uint256 private _assetID;
-
-    uint256 private _totalSupply;
-
-    string private _name;
-    string private _symbol;
-    uint8 private _decimals;
-
-    constructor(string memory name_, string memory symbol_, uint8 decimals_, uint256 assetID_) public {
-        _name = name_;
-        _symbol = symbol_;
-        _decimals = decimals_;
-        _assetID = assetID_;
-    }
-
-    /**
-     * @dev Returns the name of the token.
-     */
-    function name() public view returns (string memory) {
-        return _name;
-    }
-
-    /**
-     * @dev Returns the symbol of the token, usually a shorter version of the
-     * name.
-     */
-    function symbol() public view returns (string memory) {
-        return _symbol;
-    }
-
-    /**
-     * @dev Returns the number of decimals used to represent the token.
-     */
-    function decimals() public view returns (uint8) {
-        return _decimals;
-    }
-
-    /**
-     * @dev Returns the total supply of `assetID` currently held by
-     * this contract.
-     */
-    function totalSupply() public view returns (uint256) {
-        return _totalSupply;
-    }
-
-    /**
-     * @dev Returns the balance of `account` held in this contract.
-     */
-    function balanceOf(address account) public view returns (uint256) {
-        return _balances[account];
-    }
-
-    // Withdrawal/Deposit functionality
-
-    /**
-     * @dev Acknowledges the receipt of some amount of an Avalanche Native Token
-     * into the contract implementing this interface.
-     */
-    function deposit() public {
-        uint256 updatedBalance = NativeAssets.assetBalance(address(this), _assetID);
-        uint256 depositAmount = updatedBalance - _totalSupply;
-        assert(depositAmount >= 0);
-
-        _balances[msg.sender] += depositAmount;
-        _totalSupply = updatedBalance;
-        emit Deposit(msg.sender, depositAmount);
-    }
-
-    /**
-     * @dev Emitted when `value` tokens are deposited from `depositor`
-     */
-    event Deposit(address indexed depositor, uint256 value);
-
-    /**
-     * @dev Withdraws `value` of the underlying asset to the contract
-     * caller.
-     */
-    function withdraw(uint256 value) public {
-        require(_balances[msg.sender] >= value, "Insufficient funds for withdrawal");
-        
-        _balances[msg.sender] -= value;
-        _totalSupply -= value;
-
-        NativeAssets.assetCall(msg.sender, _assetID, value, "");
-        emit Withdrawal(msg.sender, value);
-    }
-
-    /**
-     * @dev Emitted when `value` tokens are withdrawn to `withdrawer`
-     */
-    event Withdrawal(address indexed withdrawer, uint256 value);
-
-    /**
-     * @dev Returns the `assetID` of the underlying asset this contract handles.
-     */
-    function assetID() external view returns (uint256) {
-        return _assetID;
-    }
-
-    event Transfer(address indexed from, address indexed to, uint256 value);
-
-    function transfer(address to, uint256 value) public returns (bool success) {
-        require(_balances[msg.sender] >= value, "insufficient balance for transfer");
-
-        _balances[msg.sender] -= value;  // deduct from sender's balance
-        _balances[to] += value;          // add to recipient's balance
-        emit Transfer(msg.sender, to, value);
-        return true;
-    }
-
-    event Approval(address indexed owner, address indexed spender, uint256 value);
-
-    function approve(address spender, uint256 value)
-        public
-        returns (bool success)
-    {
-        _allowances[msg.sender][spender] = value;
-        emit Approval(msg.sender, spender, value);
-        return true;
-    }
-
-    function transferFrom(address from, address to, uint256 value)
-        public
-        returns (bool success)
-    {
-        require(value <= _balances[from], "From address has insufficient balance to transfer");
-        require(value <= _allowances[from][msg.sender], "Insufficient allowance granted to sender");
-
-        _balances[from] -= value;
-        _balances[to] += value;
-        _allowances[from][msg.sender] -= value;
-        emit Transfer(from, to, value);
-        return true;
-    }
-
-    function allowance(address owner, address spender) public view returns (uint256) {
-        return _allowances[owner][spender];
-    }
-}
diff --git a/contracts/nativeAssets.sol b/contracts/nativeAssets.sol
deleted file mode 100644
index 836c4d8..0000000
--- a/contracts/nativeAssets.sol
+++ /dev/null
@@ -1,20 +0,0 @@
-// SPDX-License-Identifier: MIT
-
-pragma solidity >=0.6.0 <0.8.0;
-
-library NativeAssets {
-    address constant balanceAddr = 0x0100000000000000000000000000000000000001;
-    address constant transferAddr = 0x0100000000000000000000000000000000000002;
-
-    function assetBalance(address addr, uint256 assetID) public returns (uint256) {
-        (bool success, bytes memory data) = balanceAddr.call(abi.encodePacked(addr, assetID));
-        require(success, "assetBalance failed");
-        return abi.decode(data, (uint256));
-    }
-    
-    function assetCall(address addr, uint256 assetID, uint256 assetAmount, bytes memory callData) public returns (bytes memory) {
-        (bool success, bytes memory data) = transferAddr.call(abi.encodePacked(addr, assetID, assetAmount, callData));
-        require(success, "assetCall failed");
-        return data;
-    }
-}
-- 
cgit v1.2.3-70-g09d2