ETH Price: $3,852.93 (+0.19%)

Token

Staked Aave (stkAAVE)
 

Overview

Max Total Supply

2,986,290.321716945307150549 stkAAVE

Holders

20,636 ( 0.039%)

Market

Price

$251.07 @ 0.065163 ETH (-4.03%)

Onchain Market Cap

$749,767,911.07

Circulating Supply Market Cap

$3,767,244,638.00

Other Info

Token Contract (WITH 18 Decimals)

Filtered by Token Holder
scottu.eth
Balance
0.178789 stkAAVE

Value
$44.89 ( ~0.011650884093744 Eth) [0.0000%]
0x494e89061de0133626eacaff7c1f0a4ef611d132
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# Exchange Pair Price  24H Volume % Volume
1
Binance
AAVE-USDT$252.56
0.0656731 Eth
$92,427,332.00
364,356.818 AAVE
13.1069%
2
WhiteBIT
AAVE-USDT$252.74
0.0657634 Eth
$41,615,624.00
164,658.549 AAVE
5.9232%
3
Coinbase Exchange
AAVE-USD$252.19
0.0655538 Eth
$27,933,606.00
110,764.129 AAVE
3.9845%
4
Bitget
AAVE-USDT$252.52
0.0656611 Eth
$23,045,172.00
90,830.941 AAVE
3.2674%
5
OKX
AAVE-USDT$252.23
0.0655633 Eth
$22,593,634.00
89,246.004 AAVE
3.2104%
6
Gate.io
AAVE-USDT$252.30
0.0656486 Eth
$18,485,746.00
72,885.055 AAVE
2.6219%
7
P2B
AAVE-USDT$250.22
0.0652063 Eth
$18,018,219.00
72,010.110 AAVE
2.5904%
8
XT.COM
AAVE-USDT$250.37
0.0653634 Eth
$14,071,225.00
55,440.960 AAVE
1.9944%
9
Bybit
AAVE-USDT$252.26
0.0655956 Eth
$13,816,442.00
54,249.157 AAVE
1.9515%
10
Bitunix
AAVE-USDT$251.44
0.0654636 Eth
$12,291,343.00
48,882.584 AAVE
1.7584%
11
Upbit
AAVE-KRW$251.16
0.0653076 Eth
$11,938,797.00
47,535.273 AAVE
1.7100%
12
BTSE
AAVE-USDT$252.30
0.0656497 Eth
$11,715,716.00
46,435.311 AAVE
1.6704%
13
Binance
AAVE-ETH$250.50
0.0653183 Eth
$11,163,535.00
44,228.026 AAVE
1.5910%
14
CoinW
AAVE-USDT$252.44
0.0656407 Eth
$10,849,923.00
42,980.641 AAVE
1.5461%
15
MEXC
AAVE-USDT$251.40
0.0655748 Eth
$9,904,046.00
39,396.246 AAVE
1.4172%
16
Hotcoin
AAVE-USDT$251.88
0.0656561 Eth
$8,590,328.00
34,105.147 AAVE
1.2269%
17
KuCoin
AAVE-USDT$252.48
0.0656691 Eth
$8,577,239.00
33,972.362 AAVE
1.2221%
18
Ourbit
AAVE-USDT$251.90
0.0656613 Eth
$8,072,607.00
31,821.305 AAVE
1.1447%
19
LATOKEN
AAVE-USDT$250.50
0.0654924 Eth
$6,399,605.00
25,546.853 AAVE
0.9190%
20
BVOX
AAVE-USDT$252.23
0.0656823 Eth
$6,362,375.00
25,057.225 AAVE
0.9014%
21
FMCPAY
AAVE-USDT$252.29
0.0656204 Eth
$6,029,895.00
23,778.873 AAVE
0.8554%
22
HTX
AAVE-USDT$252.57
0.0656754 Eth
$5,854,429.00
23,074.408 AAVE
0.8301%
23
Binance
AAVE-BTC$252.40
0.0656303 Eth
$5,326,732.00
21,371.185 AAVE
0.7688%
24
LBank
AAVE-USDT$252.01
0.0656732 Eth
$4,290,302.00
17,024.370 AAVE
0.6124%
25
BYDFi
AAVE-USDT$251.29
0.0654114 Eth
$3,746,501.00
14,908.985 AAVE
0.5363%
26
Biconomy.com
AAVE-USDT$251.81
0.0656833 Eth
$3,637,983.00
14,316.163 AAVE
0.5150%
27
Binance
AAVE-USDC$252.36
0.0656215 Eth
$3,404,080.00
13,384.400 AAVE
0.4815%
28
Kraken
AAVE-USD$252.80
0.0657531 Eth
$3,369,803.00
13,329.918 AAVE
0.4795%
29
Uniswap V3 (Ethereum)
0X7FC66500C84A76AD7E9C93437BFC5AC33E2DDAE9-0X1F9840A85D5AF5BF1D1762F925BDADDC4201F984$251.05
0.0654854 Eth
$3,026,077.00
11,963.782 0X7FC66500C84A76AD7E9C93437BFC5AC33E2DDAE9
0.4304%
30
Bithumb
AAVE-KRW$250.66
0.0653393 Eth
$2,860,328.00
11,411.086 AAVE
0.4105%
31
Trubit
AAVE-USDT$251.33
0.0655634 Eth
$2,829,768.00
11,182.169 AAVE
0.4023%
32
XT.COM
AAVE-ETH$252.44
0.0656860 Eth
$2,490,390.00
9,831.171 AAVE
0.3537%
33
Coinstore
AAVE-USDT$253.15
0.0658699 Eth
$2,483,029.00
9,772.684 AAVE
0.3516%
34
BigONE
AAVE-USDT$253.05
0.0659442 Eth
$2,347,559.00
9,277.080 AAVE
0.3337%
35
Dex-Trade
AAVE-USDT$251.69
0.0654275 Eth
$2,343,326.00
9,310.438 AAVE
0.3349%
36
Uniswap V3 (Polygon)
0XD6DF932A45C0F255F85145F286EA0B292B21C90B-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619$251.64
0.0655882 Eth
$2,319,267.00
9,157.159 0XD6DF932A45C0F255F85145F286EA0B292B21C90B
0.3294%
37
Uniswap V3 (Arbitrum One)
0XBA5DDD1F9D7F570DC94A51479A000E3BCE967196-0X82AF49447D8A07E3BD95BD0D56F35241523FBAB1$253.49
0.0659133 Eth
$1,997,914.00
7,882.124 0XBA5DDD1F9D7F570DC94A51479A000E3BCE967196
0.2835%
38
Binance
AAVE-FDUSD$252.84
0.0657460 Eth
$1,925,568.00
7,601.032 AAVE
0.2734%
39
Coinbase Exchange
AAVE-EUR$252.43
0.0656385 Eth
$1,796,408.00
7,116.486 AAVE
0.2560%
40
Phemex
AAVE-USDT$251.70
0.0656327 Eth
$1,621,980.00
6,444.155 AAVE
0.2318%
41
Binance
AAVE-TRY$253.45
0.0659032 Eth
$1,584,958.00
6,219.446 AAVE
0.2237%
42
Coinbase Exchange
AAVE-BTC$252.34
0.0655926 Eth
$1,506,339.00
5,969.504 AAVE
0.2147%
43
WEEX
AAVE-USDT$251.73
0.0656170 Eth
$1,502,493.00
5,968.725 AAVE
0.2147%
44
WhiteBIT
AAVE-BTC$251.98
0.0655650 Eth
$1,501,383.00
5,958.426 AAVE
0.2143%
45
Icrypex
AAVE-USDT$252.34
0.0657110 Eth
$1,411,014.00
5,591.814 AAVE
0.2012%
46
BitMart
AAVE-USDT$251.72
0.0654975 Eth
$1,260,736.00
5,008.543 AAVE
0.1802%
47
PointPay
AAVE-USDT$250.46
0.0653351 Eth
$1,000,184.00
3,945.250 AAVE
0.1419%
48
FMCPAY
AAVE-BTC$251.70
0.0656094 Eth
$899,034.00
3,608.839 AAVE
0.1298%
49
Kraken
AAVE-EUR$251.62
0.0654473 Eth
$846,891.00
3,365.696 AAVE
0.1211%
50
Bitvavo
AAVE-EUR$249.97
0.0652135 Eth
$846,593.00
3,386.742 AAVE
0.1218%
51
Uniswap V3 (Polygon)
0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359-0XD6DF932A45C0F255F85145F286EA0B292B21C90B$251.64
0.0655882 Eth
$840,991.00
850,760.398 0X3C499C542CEF5E3811E1192CE70D8CC03D5C3359
30.6043%
52
Bitso
AAVE-USD$250.03
0.0652571 Eth
$752,125.00
3,008.127 AAVE
0.1082%
53
Uniswap V3 (BSC)
0XFB6115445BFF7B52FEB98650C87F44907E58F802-0XBB4CDB9CBD36B01BD1CBAEBF2DE08D9173BC095C$251.89
0.0656429 Eth
$686,770.00
2,732.746 0XFB6115445BFF7B52FEB98650C87F44907E58F802
0.0983%
54
FMCPAY
AAVE-ETH$251.26
0.0654942 Eth
$613,661.00
2,441.640 AAVE
0.0878%
55
CoinEx
AAVE-USDT$251.52
0.0656061 Eth
$589,510.00
2,328.310 AAVE
0.0838%
56
WEEX
AAVE-USDC$250.04
0.0652828 Eth
$503,065.00
2,011.968 AAVE
0.0724%
57
tanX
AAVE-USDC$251.37
0.0655682 Eth
$471,555.00
1,859.808 AAVE
0.0669%
58
WhiteBIT
AAVE-TRY$253.33
0.0659176 Eth
$449,961.00
1,776.176 AAVE
0.0639%
59
PointPay
AAVE-BTC$251.41
0.0654158 Eth
$434,929.00
1,750.666 AAVE
0.0630%
60
Nonkyc.io
AAVE-USDT$252.46
0.0657906 Eth
$389,928.00
1,536.382 AAVE
0.0553%
61
AscendEX (BitMax)
AAVE-USDT$251.81
0.0655210 Eth
$379,183.00
1,505.847 AAVE
0.0542%
62
Uniswap V3 (Polygon)
0XD6DF932A45C0F255F85145F286EA0B292B21C90B-0X0D500B1D8E8EF31E21C99D1DB9A6444D3ADF1270$251.64
0.0655882 Eth
$378,589.00
1,506.995 0XD6DF932A45C0F255F85145F286EA0B292B21C90B
0.0542%
63
Coinbase Exchange
AAVE-GBP$252.35
0.0655967 Eth
$339,171.00
1,344.024 AAVE
0.0483%
64
OKX
AAVE-USDC$252.58
0.0656564 Eth
$320,079.00
1,258.739 AAVE
0.0453%
65
Uniswap V3 (Polygon)
0XD6DF932A45C0F255F85145F286EA0B292B21C90B-0XC2132D05D31C914A87C6611C10748AEB04B58E8F$251.99
0.0656806 Eth
$318,734.00
1,256.274 0XD6DF932A45C0F255F85145F286EA0B292B21C90B
0.0452%
66
BitDelta
AAVE-USDT$250.59
0.0653711 Eth
$312,776.00
1,230.349 AAVE
0.0443%
67
Bitazza
AAVE-USDT$250.60
0.0654393 Eth
$284,275.00
1,119.396 AAVE
0.0403%
68
Dex-Trade
AAVE-ETH$251.42
0.0655599 Eth
$271,774.00
1,080.961 AAVE
0.0389%
69
Kraken
AAVE-XBT$250.18
0.0650720 Eth
$269,891.00
1,078.782 AAVE
0.0388%
70
Bitcointry
AAVE-USDT$252.62
0.0656648 Eth
$229,633.00
905.419 AAVE
0.0326%
71
Uniswap V3 (Polygon)
0XD6DF932A45C0F255F85145F286EA0B292B21C90B-0X2791BCA1F2DE4661ED88A30C99A7A9449AA84174$252.06
0.0656971 Eth
$215,585.00
847.593 0XD6DF932A45C0F255F85145F286EA0B292B21C90B
0.0305%
72
Gemini
AAVE-USD$252.40
0.0656318 Eth
$202,768.00
803.351 AAVE
0.0289%
73
Uniswap V3 (Polygon)
0XD6DF932A45C0F255F85145F286EA0B292B21C90B-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619$251.58
0.0655144 Eth
$188,997.00
747.536 0XD6DF932A45C0F255F85145F286EA0B292B21C90B
0.0269%
74
Uniswap V3 (Ethereum)
0X7FC66500C84A76AD7E9C93437BFC5AC33E2DDAE9-0X1F9840A85D5AF5BF1D1762F925BDADDC4201F984$250.26
0.0652174 Eth
$188,337.00
742.453 0X7FC66500C84A76AD7E9C93437BFC5AC33E2DDAE9
0.0267%
75
Quickswap (v3)
0XD6DF932A45C0F255F85145F286EA0B292B21C90B-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619$251.78
0.0656733 Eth
$168,845.00
668.190 0XD6DF932A45C0F255F85145F286EA0B292B21C90B
0.0240%
76
Uniswap V3 (Optimism)
0X76FB31FB4AF56892A25E32CFC43DE717950C9278-0X4200000000000000000000000000000000000006$248.57
0.0646360 Eth
$158,679.00
634.793 0X76FB31FB4AF56892A25E32CFC43DE717950C9278
0.0228%
77
KuCoin
AAVE-BTC$252.37
0.0656401 Eth
$132,444.00
524.810 AAVE
0.0189%
78
Bitkub
AAVE-THB$250.64
0.0652561 Eth
$98,383.00
392.530 AAVE
0.0141%
79
Uniswap V3 (Arbitrum One)
0XAF88D065E77C8CC2239327C5EDB3A432268E5831-0XBA5DDD1F9D7F570DC94A51479A000E3BCE967196$253.49
0.0659133 Eth
$92,311.00
92,818.476 0XAF88D065E77C8CC2239327C5EDB3A432268E5831
3.3389%
80
PancakeSwap V3 (BSC)
0XFB6115445BFF7B52FEB98650C87F44907E58F802-0XBB4CDB9CBD36B01BD1CBAEBF2DE08D9173BC095C$247.68
0.0646048 Eth
$88,144.00
352.557 0XFB6115445BFF7B52FEB98650C87F44907E58F802
0.0127%
81
Binance US
AAVE-USDT$251.14
0.0654866 Eth
$85,820.00
341.724 AAVE
0.0123%
82
DeGate
0X7FC66500C84A76AD7E9C93437BFC5AC33E2DDAE9-0XA0B86991C6218B36C1D19D4A2E9EB0CE3606EB48$252.45
0.0657714 Eth
$85,452.00
334.938 0X7FC66500C84A76AD7E9C93437BFC5AC33E2DDAE9
0.0120%
83
Nonkyc.io
AAVE-ETH$251.71
0.0657654 Eth
$80,302.00
319.438 AAVE
0.0115%
84
Uniswap V3 (Arbitrum One)
0XBA5DDD1F9D7F570DC94A51479A000E3BCE967196-0X82AF49447D8A07E3BD95BD0D56F35241523FBAB1$252.47
0.0658541 Eth
$76,431.00
306.894 0XBA5DDD1F9D7F570DC94A51479A000E3BCE967196
0.0110%
85
LFJ
0X63A72806098BD3D9520CC43356DD78AFE5D386D9-0XB31F66AA3C1E785363F0875A1B74E27B85FD66C7$249.09
0.0649235 Eth
$73,632.00
297.062 0X63A72806098BD3D9520CC43356DD78AFE5D386D9
0.0107%
86
Mercado Bitcoin
AAVE-BRL$252.87
0.0657978 Eth
$58,929.00
233.039 AAVE
0.0084%
87
EXMO
AAVE-USDT$253.12
0.0658355 Eth
$39,993.00
158.004 AAVE
0.0057%
88
Kraken
AAVE-GBP$250.07
0.0650435 Eth
$39,826.00
159.257 AAVE
0.0057%
89
Uniswap V3 (Polygon)
0XD6DF932A45C0F255F85145F286EA0B292B21C90B-0X1BFD67037B42CF73ACF2047067BD4F2C47D9BFD6$252.10
0.0656496 Eth
$32,269.00
129.073 0XD6DF932A45C0F255F85145F286EA0B292B21C90B
0.0046%
90
Uniswap V3 (Optimism)
0X76FB31FB4AF56892A25E32CFC43DE717950C9278-0X4200000000000000000000000000000000000006$246.09
0.0639907 Eth
$32,143.00
128.693 0X76FB31FB4AF56892A25E32CFC43DE717950C9278
0.0046%
91
Uniswap V3 (Polygon)
0XD6DF932A45C0F255F85145F286EA0B292B21C90B-0X0D500B1D8E8EF31E21C99D1DB9A6444D3ADF1270$250.19
0.0650950 Eth
$29,884.00
119.796 0XD6DF932A45C0F255F85145F286EA0B292B21C90B
0.0043%
92
Uniswap V2 (Ethereum)
0X7FC66500C84A76AD7E9C93437BFC5AC33E2DDAE9-0XC02AAA39B223FE8D0A0E5C4F27EAD9083C756CC2$247.20
0.0644191 Eth
$29,511.00
119.609 0X7FC66500C84A76AD7E9C93437BFC5AC33E2DDAE9
0.0043%
93
Sushiswap (Polygon POS)
0XD6DF932A45C0F255F85145F286EA0B292B21C90B-0X7CEB23FD6BC0ADD59E62AC25578270CFF1B9F619$252.14
0.0655824 Eth
$27,217.00
107.604 0XD6DF932A45C0F255F85145F286EA0B292B21C90B
0.0039%
94
HashKey Exchange
AAVE-USD$252.52
0.0657590 Eth
$26,818.00
103.214 AAVE
0.0037%
95
NovaDAX
AAVE-BRL$251.86
0.0658037 Eth
$23,172.00
92.005 AAVE
0.0033%
96
Bitexen
AAVE-TRY$249.21
0.0648385 Eth
$21,277.00
85.378 AAVE
0.0031%
97
Globe
AAVE-USDT$250.00
0.0652547 Eth
$21,125.00
83.014 AAVE
0.0030%
98
Uniswap V3 (Ethereum)
0X7FC66500C84A76AD7E9C93437BFC5AC33E2DDAE9-0XA0B86991C6218B36C1D19D4A2E9EB0CE3606EB48$252.05
0.0655577 Eth
$20,666.00
80.309 0X7FC66500C84A76AD7E9C93437BFC5AC33E2DDAE9
0.0029%
99
Uniswap V3 (Arbitrum One)
0XBA5DDD1F9D7F570DC94A51479A000E3BCE967196-0XFD086BC7CD5C481DCC9C85EBE478A1C0B69FCBB9$253.77
0.0661310 Eth
$15,543.45
61.753 0XBA5DDD1F9D7F570DC94A51479A000E3BCE967196
0.0022%
100
Gate.io
AAVE-ETH$251.48
0.0654355 Eth
$6,429.60
25.520 AAVE
0.0009%

Contract Source Code Verified (Exact Match)

Contract Name:
InitializableAdminUpgradeabilityProxy

Compiler Version
v0.6.12+commit.27d51765

Optimization Enabled:
Yes with 200 runs

Other Settings:
default evmVersion
File 1 of 28 : InitializableAdminUpgradeabilityProxy.sol
// SPDX-License-Identifier: MIT
pragma solidity 0.6.12;

import './BaseAdminUpgradeabilityProxy.sol';
import './InitializableUpgradeabilityProxy.sol';

/**
 * @title InitializableAdminUpgradeabilityProxy
 * @dev From https://github.com/OpenZeppelin/openzeppelin-sdk/tree/solc-0.6/packages/lib/contracts/upgradeability 
 * Extends from BaseAdminUpgradeabilityProxy with an initializer for
 * initializing the implementation, admin, and init data.
 */
contract InitializableAdminUpgradeabilityProxy is
    BaseAdminUpgradeabilityProxy,
    InitializableUpgradeabilityProxy
{
    /**
     * Contract initializer.
     * @param _logic address of the initial implementation.
     * @param _admin Address of the proxy administrator.
     * @param _data Data to send as msg.data to the implementation to initialize the proxied contract.
     * It should include the signature and the parameters of the function to be called, as described in
     * https://solidity.readthedocs.io/en/v0.4.24/abi-spec.html#function-selector-and-argument-encoding.
     * This parameter is optional, if no data is given the initialization call to proxied contract will be skipped.
     */
    function initialize(
        address _logic,
        address _admin,
        bytes memory _data
    ) public payable {
        require(_implementation() == address(0));
        InitializableUpgradeabilityProxy.initialize(_logic, _data);
        assert(ADMIN_SLOT == bytes32(uint256(keccak256('eip1967.proxy.admin')) - 1));
        _setAdmin(_admin);
    }

    /**
     * @dev Only fall back when the sender is not the admin.
     */
    function _willFallback() internal override(BaseAdminUpgradeabilityProxy, Proxy) {
        BaseAdminUpgradeabilityProxy._willFallback();
    }
}

File 2 of 28 : IAaveDistributionManager.sol
// SPDX-License-Identifier: agpl-3.0
pragma solidity 0.6.12;
pragma experimental ABIEncoderV2;

import {DistributionTypes} from '../lib/DistributionTypes.sol';

interface IAaveDistributionManager {
  function configureAssets(DistributionTypes.AssetConfigInput[] calldata assetsConfigInput) external;
}

File 3 of 28 : DistributionTypes.sol
// SPDX-License-Identifier: agpl-3.0
pragma solidity 0.6.12;
pragma experimental ABIEncoderV2;

library DistributionTypes {
  struct AssetConfigInput {
    uint128 emissionPerSecond;
    uint256 totalStaked;
    address underlyingAsset;
  }

  struct UserStakeInput {
    address underlyingAsset;
    uint256 stakedByUser;
    uint256 totalStaked;
  }
}

File 4 of 28 : IAaveIncentivesController.sol
// SPDX-License-Identifier: agpl-3.0
pragma solidity 0.6.12;
pragma experimental ABIEncoderV2;

interface IAaveIncentivesController {
  function handleAction(
    address asset,
    uint256 userBalance,
    uint256 totalSupply
  ) external;

  function getRewardsBalance(address[] calldata assets, address user)
    external
    view
    returns (uint256);

  function claimRewards(
    address[] calldata assets,
    uint256 amount,
    address to,
    bool stake
  ) external returns (uint256);
}

File 5 of 28 : IAToken.sol
pragma solidity ^0.6.12;

interface IAToken {
  function getScaledUserBalanceAndSupply(address user) external view returns (uint256, uint256);
}

File 6 of 28 : IERC20.sol
// SPDX-License-Identifier: MIT
pragma solidity 0.6.12;

/**
 * @dev Interface of the ERC20 standard as defined in the EIP.
 * From https://github.com/OpenZeppelin/openzeppelin-contracts
 */
interface IERC20 {
  /**
   * @dev Returns the amount of tokens in existence.
   */
  function totalSupply() external view returns (uint256);

  /**
   * @dev Returns the amount of tokens owned by `account`.
   */
  function balanceOf(address account) external view returns (uint256);

  /**
   * @dev Moves `amount` tokens from the caller's account to `recipient`.
   *
   * Returns a boolean value indicating whether the operation succeeded.
   *
   * Emits a {Transfer} event.
   */
  function transfer(address recipient, uint256 amount) external returns (bool);

  /**
   * @dev Returns the remaining number of tokens that `spender` will be
   * allowed to spend on behalf of `owner` through {transferFrom}. This is
   * zero by default.
   *
   * This value changes when {approve} or {transferFrom} are called.
   */
  function allowance(address owner, address spender) external view returns (uint256);

  /**
   * @dev Sets `amount` as the allowance of `spender` over the caller's tokens.
   *
   * Returns a boolean value indicating whether the operation succeeded.
   *
   * IMPORTANT: Beware that changing an allowance with this method brings the risk
   * that someone may use both the old and the new allowance by unfortunate
   * transaction ordering. One possible solution to mitigate this race
   * condition is to first reduce the spender's allowance to 0 and set the
   * desired value afterwards:
   * https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729
   *
   * Emits an {Approval} event.
   */
  function approve(address spender, uint256 amount) external returns (bool);

  /**
   * @dev Moves `amount` tokens from `sender` to `recipient` using the
   * allowance mechanism. `amount` is then deducted from the caller's
   * allowance.
   *
   * Returns a boolean value indicating whether the operation succeeded.
   *
   * Emits a {Transfer} event.
   */
  function transferFrom(
    address sender,
    address recipient,
    uint256 amount
  ) external returns (bool);

  /**
   * @dev Emitted when `value` tokens are moved from one account (`from`) to
   * another (`to`).
   *
   * Note that `value` may be zero.
   */
  event Transfer(address indexed from, address indexed to, uint256 value);

  /**
   * @dev Emitted when the allowance of a `spender` for an `owner` is set by
   * a call to {approve}. `value` is the new allowance.
   */
  event Approval(address indexed owner, address indexed spender, uint256 value);
}

File 7 of 28 : IERC20Detailed.sol
// SPDX-License-Identifier: agpl-3.0
pragma solidity 0.6.12;

import {IERC20} from './IERC20.sol';

/**
 * @dev Interface for ERC20 including metadata
 **/
interface IERC20Detailed is IERC20 {
    function name() external view returns (string memory);
    function symbol() external view returns (string memory);
    function decimals() external view returns (uint8);
}

File 8 of 28 : IStakedAave.sol
// SPDX-License-Identifier: agpl-3.0
pragma solidity 0.6.12;

interface IStakedAave {
  function stake(address to, uint256 amount) external;

  function redeem(address to, uint256 amount) external;

  function cooldown() external;

  function claimRewards(address to, uint256 amount) external;
}

File 9 of 28 : ITransferHook.sol
// SPDX-License-Identifier: agpl-3.0
pragma solidity 0.6.12;

interface ITransferHook {
    function onTransfer(address from, address to, uint256 amount) external;
}

File 10 of 28 : Address.sol
// SPDX-License-Identifier: MIT
pragma solidity 0.6.12;

/**
 * @dev Collection of functions related to the address type
 * From https://github.com/OpenZeppelin/openzeppelin-contracts
 */
library Address {
    /**
     * @dev Returns true if `account` is a contract.
     *
     * [IMPORTANT]
     * ====
     * It is unsafe to assume that an address for which this function returns
     * false is an externally-owned account (EOA) and not a contract.
     *
     * Among others, `isContract` will return false for the following
     * types of addresses:
     *
     *  - an externally-owned account
     *  - a contract in construction
     *  - an address where a contract will be created
     *  - an address where a contract lived, but was destroyed
     * ====
     */
    function isContract(address account) internal view returns (bool) {
        // According to EIP-1052, 0x0 is the value returned for not-yet created accounts
        // and 0xc5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470 is returned
        // for accounts without code, i.e. `keccak256('')`
        bytes32 codehash;
        bytes32 accountHash = 0xc5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470;
        // solhint-disable-next-line no-inline-assembly
        assembly {
            codehash := extcodehash(account)
        }
        return (codehash != accountHash && codehash != 0x0);
    }

    /**
     * @dev Replacement for Solidity's `transfer`: sends `amount` wei to
     * `recipient`, forwarding all available gas and reverting on errors.
     *
     * https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost
     * of certain opcodes, possibly making contracts go over the 2300 gas limit
     * imposed by `transfer`, making them unable to receive funds via
     * `transfer`. {sendValue} removes this limitation.
     *
     * https://diligence.consensys.net/posts/2019/09/stop-using-soliditys-transfer-now/[Learn more].
     *
     * IMPORTANT: because control is transferred to `recipient`, care must be
     * taken to not create reentrancy vulnerabilities. Consider using
     * {ReentrancyGuard} or the
     * https://solidity.readthedocs.io/en/v0.5.11/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern].
     */
    function sendValue(address payable recipient, uint256 amount) internal {
        require(address(this).balance >= amount, 'Address: insufficient balance');

        // solhint-disable-next-line avoid-low-level-calls, avoid-call-value
        (bool success, ) = recipient.call{value: amount}('');
        require(success, 'Address: unable to send value, recipient may have reverted');
    }
}

File 11 of 28 : BaseAdminUpgradeabilityProxy.sol
// SPDX-License-Identifier: MIT
pragma solidity 0.6.12;

import './UpgradeabilityProxy.sol';

/**
 * @title BaseAdminUpgradeabilityProxy
 * @dev From https://github.com/OpenZeppelin/openzeppelin-sdk/tree/solc-0.6/packages/lib/contracts/upgradeability 
 * This contract combines an upgradeability proxy with an authorization
 * mechanism for administrative tasks.
 * All external functions in this contract must be guarded by the
 * `ifAdmin` modifier. See ethereum/solidity#3864 for a Solidity
 * feature proposal that would enable this to be done automatically.
 */
contract BaseAdminUpgradeabilityProxy is BaseUpgradeabilityProxy {
    /**
     * @dev Emitted when the administration has been transferred.
     * @param previousAdmin Address of the previous admin.
     * @param newAdmin Address of the new admin.
     */
    event AdminChanged(address previousAdmin, address newAdmin);

    /**
     * @dev Storage slot with the admin of the contract.
     * This is the keccak-256 hash of "eip1967.proxy.admin" subtracted by 1, and is
     * validated in the constructor.
     */

    bytes32
        internal constant ADMIN_SLOT = 0xb53127684a568b3173ae13b9f8a6016e243e63b6e8ee1178d6a717850b5d6103;

    /**
     * @dev Modifier to check whether the `msg.sender` is the admin.
     * If it is, it will run the function. Otherwise, it will delegate the call
     * to the implementation.
     */
    modifier ifAdmin() {
        if (msg.sender == _admin()) {
            _;
        } else {
            _fallback();
        }
    }

    /**
     * @return The address of the proxy admin.
     */
    function admin() external ifAdmin returns (address) {
        return _admin();
    }

    /**
     * @return The address of the implementation.
     */
    function implementation() external ifAdmin returns (address) {
        return _implementation();
    }

    /**
     * @dev Changes the admin of the proxy.
     * Only the current admin can call this function.
     * @param newAdmin Address to transfer proxy administration to.
     */
    function changeAdmin(address newAdmin) external ifAdmin {
        require(newAdmin != address(0), 'Cannot change the admin of a proxy to the zero address');
        emit AdminChanged(_admin(), newAdmin);
        _setAdmin(newAdmin);
    }

    /**
     * @dev Upgrade the backing implementation of the proxy.
     * Only the admin can call this function.
     * @param newImplementation Address of the new implementation.
     */
    function upgradeTo(address newImplementation) external ifAdmin {
        _upgradeTo(newImplementation);
    }

    /**
     * @dev Upgrade the backing implementation of the proxy and call a function
     * on the new implementation.
     * This is useful to initialize the proxied contract.
     * @param newImplementation Address of the new implementation.
     * @param data Data to send as msg.data in the low level call.
     * It should include the signature and the parameters of the function to be called, as described in
     * https://solidity.readthedocs.io/en/v0.4.24/abi-spec.html#function-selector-and-argument-encoding.
     */
    function upgradeToAndCall(address newImplementation, bytes calldata data)
        external
        payable
        ifAdmin
    {
        _upgradeTo(newImplementation);
        (bool success, ) = newImplementation.delegatecall(data);
        require(success);
    }

    /**
     * @return adm The admin slot.
     */
    function _admin() internal view returns (address adm) {
        bytes32 slot = ADMIN_SLOT;
        assembly {
            adm := sload(slot)
        }
    }

    /**
     * @dev Sets the address of the proxy admin.
     * @param newAdmin Address of the new proxy admin.
     */
    function _setAdmin(address newAdmin) internal {
        bytes32 slot = ADMIN_SLOT;

        assembly {
            sstore(slot, newAdmin)
        }
    }

    /**
     * @dev Only fall back when the sender is not the admin.
     */
    function _willFallback() internal virtual override {
        require(msg.sender != _admin(), 'Cannot call fallback function from the proxy admin');
        super._willFallback();
    }
}

File 12 of 28 : UpgradeabilityProxy.sol
// SPDX-License-Identifier: agpl-3.0
pragma solidity 0.6.12;

import './BaseUpgradeabilityProxy.sol';

/**
 * @title UpgradeabilityProxy
 * @dev From https://github.com/OpenZeppelin/openzeppelin-sdk/tree/solc-0.6/packages/lib/contracts/upgradeability
 * Extends BaseUpgradeabilityProxy with a constructor for initializing
 * implementation and init data.
 */
contract UpgradeabilityProxy is BaseUpgradeabilityProxy {
    /**
     * @dev Contract constructor.
     * @param _logic Address of the initial implementation.
     * @param _data Data to send as msg.data to the implementation to initialize the proxied contract.
     * It should include the signature and the parameters of the function to be called, as described in
     * https://solidity.readthedocs.io/en/v0.4.24/abi-spec.html#function-selector-and-argument-encoding.
     * This parameter is optional, if no data is given the initialization call to proxied contract will be skipped.
     */
    constructor(address _logic, bytes memory _data) public payable {
        assert(
            IMPLEMENTATION_SLOT == bytes32(uint256(keccak256('eip1967.proxy.implementation')) - 1)
        );
        _setImplementation(_logic);
        if (_data.length > 0) {
            (bool success, ) = _logic.delegatecall(_data);
            require(success);
        }
    }
}

File 13 of 28 : BaseUpgradeabilityProxy.sol
// SPDX-License-Identifier: MIT
pragma solidity 0.6.12;

import './Proxy.sol';
import './Address.sol';

/**
 * @title BaseUpgradeabilityProxy
 * @dev From https://github.com/OpenZeppelin/openzeppelin-sdk/tree/solc-0.6/packages/lib/contracts/upgradeability
 * This contract implements a proxy that allows to change the
 * implementation address to which it will delegate.
 * Such a change is called an implementation upgrade.
 */
contract BaseUpgradeabilityProxy is Proxy {
    /**
     * @dev Emitted when the implementation is upgraded.
     * @param implementation Address of the new implementation.
     */
    event Upgraded(address indexed implementation);

    /**
     * @dev Storage slot with the address of the current implementation.
     * This is the keccak-256 hash of "eip1967.proxy.implementation" subtracted by 1, and is
     * validated in the constructor.
     */
    bytes32
        internal constant IMPLEMENTATION_SLOT = 0x360894a13ba1a3210667c828492db98dca3e2076cc3735a920a3ca505d382bbc;

    /**
     * @dev Returns the current implementation.
     * @return impl Address of the current implementation
     */
    function _implementation() internal override view returns (address impl) {
        bytes32 slot = IMPLEMENTATION_SLOT;
        assembly {
            impl := sload(slot)
        }
    }

    /**
     * @dev Upgrades the proxy to a new implementation.
     * @param newImplementation Address of the new implementation.
     */
    function _upgradeTo(address newImplementation) internal {
        _setImplementation(newImplementation);
        emit Upgraded(newImplementation);
    }

    /**
     * @dev Sets the implementation address of the proxy.
     * @param newImplementation Address of the new implementation.
     */
    function _setImplementation(address newImplementation) internal {
        require(
            Address.isContract(newImplementation),
            'Cannot set a proxy implementation to a non-contract address'
        );

        bytes32 slot = IMPLEMENTATION_SLOT;

        assembly {
            sstore(slot, newImplementation)
        }
    }
}

File 14 of 28 : Proxy.sol
// SPDX-License-Identifier: MIT
pragma solidity 0.6.12;

/**
 * @title Proxy
 * @dev From https://github.com/OpenZeppelin/openzeppelin-sdk/tree/solc-0.6/packages/lib/contracts/upgradeability
 * Implements delegation of calls to other contracts, with proper
 * forwarding of return values and bubbling of failures.
 * It defines a fallback function that delegates all calls to the address
 * returned by the abstract _implementation() internal function.
 */
abstract contract Proxy {
    /**
     * @dev Fallback function.
     * Implemented entirely in `_fallback`.
     */
    fallback() external payable {
        _fallback();
    }

    /**
     * @return The Address of the implementation.
     */
    function _implementation() internal virtual view returns (address);

    /**
     * @dev Delegates execution to an implementation contract.
     * This is a low level function that doesn't return to its internal call site.
     * It will return to the external caller whatever the implementation returns.
     * @param implementation Address to delegate.
     */
    function _delegate(address implementation) internal {
        assembly {
            // Copy msg.data. We take full control of memory in this inline assembly
            // block because it will not return to Solidity code. We overwrite the
            // Solidity scratch pad at memory position 0.
            calldatacopy(0, 0, calldatasize())

            // Call the implementation.
            // out and outsize are 0 because we don't know the size yet.
            let result := delegatecall(gas(), implementation, 0, calldatasize(), 0, 0)

            // Copy the returned data.
            returndatacopy(0, 0, returndatasize())

            switch result
                // delegatecall returns 0 on error.
                case 0 {
                    revert(0, returndatasize())
                }
                default {
                    return(0, returndatasize())
                }
        }
    }

    /**
     * @dev Function that is run as the first thing in the fallback function.
     * Can be redefined in derived contracts to add functionality.
     * Redefinitions must call super._willFallback().
     */
    function _willFallback() internal virtual {}

    /**
     * @dev fallback implementation.
     * Extracted to enable manual triggering.
     */
    function _fallback() internal {
        _willFallback();
        _delegate(_implementation());
    }
}

File 15 of 28 : Context.sol
// SPDX-License-Identifier: MIT

pragma solidity 0.6.12;

/**
 * @dev From https://github.com/OpenZeppelin/openzeppelin-contracts
 * Provides information about the current execution context, including the
 * sender of the transaction and its data. While these are generally available
 * via msg.sender and msg.data, they should not be accessed in such a direct
 * manner, since when dealing with GSN meta-transactions the account sending and
 * paying for execution may not be the actual sender (as far as an application
 * is concerned).
 *
 * This contract is only required for intermediate, library-like contracts.
 */
abstract contract Context {
    function _msgSender() internal virtual view returns (address payable) {
        return msg.sender;
    }

    function _msgData() internal virtual view returns (bytes memory) {
        this; // silence state mutability warning without generating bytecode - see https://github.com/ethereum/solidity/issues/2691
        return msg.data;
    }
}

File 16 of 28 : ERC20.sol
// SPDX-License-Identifier: agpl-3.0
pragma solidity 0.6.12;

import {Context} from './Context.sol';
import {IERC20} from '../interfaces/IERC20.sol';
import {IERC20Detailed} from '../interfaces/IERC20Detailed.sol';
import {SafeMath} from './SafeMath.sol';

/**
 * @title ERC20
 * @notice Basic ERC20 implementation
 * @author Aave
 **/
contract ERC20 is Context, IERC20, IERC20Detailed {
  using SafeMath for uint256;

  mapping(address => uint256) private _balances;
  mapping(address => mapping(address => uint256)) private _allowances;
  uint256 private _totalSupply;
  string private _name;
  string private _symbol;
  uint8 private _decimals;

  constructor(
    string memory name,
    string memory symbol,
    uint8 decimals
  ) public {
    _name = name;
    _symbol = symbol;
    _decimals = decimals;
  }

  /**
   * @return the name of the token
   **/
  function name() public override view returns (string memory) {
    return _name;
  }

  /**
   * @return the symbol of the token
   **/
  function symbol() public override view returns (string memory) {
    return _symbol;
  }

  /**
   * @return the decimals of the token
   **/
  function decimals() public override view returns (uint8) {
    return _decimals;
  }

  /**
   * @return the total supply of the token
   **/
  function totalSupply() public override view returns (uint256) {
    return _totalSupply;
  }

  /**
   * @return the balance of the token
   **/
  function balanceOf(address account) public override view returns (uint256) {
    return _balances[account];
  }

  /**
   * @dev executes a transfer of tokens from msg.sender to recipient
   * @param recipient the recipient of the tokens
   * @param amount the amount of tokens being transferred
   * @return true if the transfer succeeds, false otherwise
   **/
  function transfer(address recipient, uint256 amount) public virtual override returns (bool) {
    _transfer(_msgSender(), recipient, amount);
    return true;
  }

  /**
   * @dev returns the allowance of spender on the tokens owned by owner
   * @param owner the owner of the tokens
   * @param spender the user allowed to spend the owner's tokens
   * @return the amount of owner's tokens spender is allowed to spend
   **/
  function allowance(address owner, address spender)
    public
    virtual
    override
    view
    returns (uint256)
  {
    return _allowances[owner][spender];
  }

  /**
   * @dev allows spender to spend the tokens owned by msg.sender
   * @param spender the user allowed to spend msg.sender tokens
   * @return true
   **/
  function approve(address spender, uint256 amount) public virtual override returns (bool) {
    _approve(_msgSender(), spender, amount);
    return true;
  }

  /**
   * @dev executes a transfer of token from sender to recipient, if msg.sender is allowed to do so
   * @param sender the owner of the tokens
   * @param recipient the recipient of the tokens
   * @param amount the amount of tokens being transferred
   * @return true if the transfer succeeds, false otherwise
   **/
  function transferFrom(
    address sender,
    address recipient,
    uint256 amount
  ) public virtual override returns (bool) {
    _transfer(sender, recipient, amount);
    _approve(
      sender,
      _msgSender(),
      _allowances[sender][_msgSender()].sub(amount, 'ERC20: transfer amount exceeds allowance')
    );
    return true;
  }

  /**
   * @dev increases the allowance of spender to spend msg.sender tokens
   * @param spender the user allowed to spend on behalf of msg.sender
   * @param addedValue the amount being added to the allowance
   * @return true
   **/
  function increaseAllowance(address spender, uint256 addedValue) public virtual returns (bool) {
    _approve(_msgSender(), spender, _allowances[_msgSender()][spender].add(addedValue));
    return true;
  }

  /**
   * @dev decreases the allowance of spender to spend msg.sender tokens
   * @param spender the user allowed to spend on behalf of msg.sender
   * @param subtractedValue the amount being subtracted to the allowance
   * @return true
   **/
  function decreaseAllowance(address spender, uint256 subtractedValue)
    public
    virtual
    returns (bool)
  {
    _approve(
      _msgSender(),
      spender,
      _allowances[_msgSender()][spender].sub(
        subtractedValue,
        'ERC20: decreased allowance below zero'
      )
    );
    return true;
  }

  function _transfer(
    address sender,
    address recipient,
    uint256 amount
  ) internal virtual {
    require(sender != address(0), 'ERC20: transfer from the zero address');
    require(recipient != address(0), 'ERC20: transfer to the zero address');

    _beforeTokenTransfer(sender, recipient, amount);

    _balances[sender] = _balances[sender].sub(amount, 'ERC20: transfer amount exceeds balance');
    _balances[recipient] = _balances[recipient].add(amount);
    emit Transfer(sender, recipient, amount);
  }

  function _mint(address account, uint256 amount) internal virtual {
    require(account != address(0), 'ERC20: mint to the zero address');

    _beforeTokenTransfer(address(0), account, amount);

    _totalSupply = _totalSupply.add(amount);
    _balances[account] = _balances[account].add(amount);
    emit Transfer(address(0), account, amount);
  }

  function _burn(address account, uint256 amount) internal virtual {
    require(account != address(0), 'ERC20: burn from the zero address');

    _beforeTokenTransfer(account, address(0), amount);

    _balances[account] = _balances[account].sub(amount, 'ERC20: burn amount exceeds balance');
    _totalSupply = _totalSupply.sub(amount);
    emit Transfer(account, address(0), amount);
  }

  function _approve(
    address owner,
    address spender,
    uint256 amount
  ) internal virtual {
    require(owner != address(0), 'ERC20: approve from the zero address');
    require(spender != address(0), 'ERC20: approve to the zero address');

    _allowances[owner][spender] = amount;
    emit Approval(owner, spender, amount);
  }

  function _setName(string memory newName) internal {
    _name = newName;
  }

  function _setSymbol(string memory newSymbol) internal {
    _symbol = newSymbol;
  }

  function _setDecimals(uint8 newDecimals) internal {
    _decimals = newDecimals;
  }

  function _beforeTokenTransfer(
    address from,
    address to,
    uint256 amount
  ) internal virtual {}
}

File 17 of 28 : SafeMath.sol
// SPDX-License-Identifier: agpl-3.0
pragma solidity 0.6.12;

/**
 * @dev From https://github.com/OpenZeppelin/openzeppelin-contracts
 * Wrappers over Solidity's arithmetic operations with added overflow
 * checks.
 *
 * Arithmetic operations in Solidity wrap on overflow. This can easily result
 * in bugs, because programmers usually assume that an overflow raises an
 * error, which is the standard behavior in high level programming languages.
 * `SafeMath` restores this intuition by reverting the transaction when an
 * operation overflows.
 *
 * Using this library instead of the unchecked operations eliminates an entire
 * class of bugs, so it's recommended to use it always.
 */
library SafeMath {
    /**
     * @dev Returns the addition of two unsigned integers, reverting on
     * overflow.
     *
     * Counterpart to Solidity's `+` operator.
     *
     * Requirements:
     * - Addition cannot overflow.
     */
    function add(uint256 a, uint256 b) internal pure returns (uint256) {
        uint256 c = a + b;
        require(c >= a, 'SafeMath: addition overflow');

        return c;
    }

    /**
     * @dev Returns the subtraction of two unsigned integers, reverting on
     * overflow (when the result is negative).
     *
     * Counterpart to Solidity's `-` operator.
     *
     * Requirements:
     * - Subtraction cannot overflow.
     */
    function sub(uint256 a, uint256 b) internal pure returns (uint256) {
        return sub(a, b, 'SafeMath: subtraction overflow');
    }

    /**
     * @dev Returns the subtraction of two unsigned integers, reverting with custom message on
     * overflow (when the result is negative).
     *
     * Counterpart to Solidity's `-` operator.
     *
     * Requirements:
     * - Subtraction cannot overflow.
     */
    function sub(
        uint256 a,
        uint256 b,
        string memory errorMessage
    ) internal pure returns (uint256) {
        require(b <= a, errorMessage);
        uint256 c = a - b;

        return c;
    }

    /**
     * @dev Returns the multiplication of two unsigned integers, reverting on
     * overflow.
     *
     * Counterpart to Solidity's `*` operator.
     *
     * Requirements:
     * - Multiplication cannot overflow.
     */
    function mul(uint256 a, uint256 b) internal pure returns (uint256) {
        // Gas optimization: this is cheaper than requiring 'a' not being zero, but the
        // benefit is lost if 'b' is also tested.
        // See: https://github.com/OpenZeppelin/openzeppelin-contracts/pull/522
        if (a == 0) {
            return 0;
        }

        uint256 c = a * b;
        require(c / a == b, 'SafeMath: multiplication overflow');

        return c;
    }

    /**
     * @dev Returns the integer division of two unsigned integers. Reverts on
     * division by zero. The result is rounded towards zero.
     *
     * Counterpart to Solidity's `/` operator. Note: this function uses a
     * `revert` opcode (which leaves remaining gas untouched) while Solidity
     * uses an invalid opcode to revert (consuming all remaining gas).
     *
     * Requirements:
     * - The divisor cannot be zero.
     */
    function div(uint256 a, uint256 b) internal pure returns (uint256) {
        return div(a, b, 'SafeMath: division by zero');
    }

    /**
     * @dev Returns the integer division of two unsigned integers. Reverts with custom message on
     * division by zero. The result is rounded towards zero.
     *
     * Counterpart to Solidity's `/` operator. Note: this function uses a
     * `revert` opcode (which leaves remaining gas untouched) while Solidity
     * uses an invalid opcode to revert (consuming all remaining gas).
     *
     * Requirements:
     * - The divisor cannot be zero.
     */
    function div(
        uint256 a,
        uint256 b,
        string memory errorMessage
    ) internal pure returns (uint256) {
        // Solidity only automatically asserts when dividing by 0
        require(b > 0, errorMessage);
        uint256 c = a / b;
        // assert(a == b * c + a % b); // There is no case in which this doesn't hold

        return c;
    }

    /**
     * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo),
     * Reverts when dividing by zero.
     *
     * Counterpart to Solidity's `%` operator. This function uses a `revert`
     * opcode (which leaves remaining gas untouched) while Solidity uses an
     * invalid opcode to revert (consuming all remaining gas).
     *
     * Requirements:
     * - The divisor cannot be zero.
     */
    function mod(uint256 a, uint256 b) internal pure returns (uint256) {
        return mod(a, b, 'SafeMath: modulo by zero');
    }

    /**
     * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo),
     * Reverts with custom message when dividing by zero.
     *
     * Counterpart to Solidity's `%` operator. This function uses a `revert`
     * opcode (which leaves remaining gas untouched) while Solidity uses an
     * invalid opcode to revert (consuming all remaining gas).
     *
     * Requirements:
     * - The divisor cannot be zero.
     */
    function mod(
        uint256 a,
        uint256 b,
        string memory errorMessage
    ) internal pure returns (uint256) {
        require(b != 0, errorMessage);
        return a % b;
    }
}

File 18 of 28 : ERC20WithSnapshot.sol
// SPDX-License-Identifier: agpl-3.0
pragma solidity 0.6.12;

import {ERC20} from '../lib/ERC20.sol';
import {ITransferHook} from '../interfaces/ITransferHook.sol';

/**
 * @title ERC20WithSnapshot
 * @notice ERC20 including snapshots of balances on transfer-related actions
 * @author Aave
 **/
contract ERC20WithSnapshot is ERC20 {

    /// @dev snapshot of a value on a specific block, used for balances
    struct Snapshot {
        uint128 blockNumber;
        uint128 value;
    }

    mapping (address => mapping (uint256 => Snapshot)) public _snapshots;
    mapping (address => uint256) public _countsSnapshots;
    /// @dev reference to the Aave governance contract to call (if initialized) on _beforeTokenTransfer
    /// !!! IMPORTANT The Aave governance is considered a trustable contract, being its responsibility
    /// to control all potential reentrancies by calling back the this contract
    ITransferHook public _aaveGovernance;

    event SnapshotDone(address owner, uint128 oldValue, uint128 newValue);

    constructor(string memory name, string memory symbol, uint8 decimals) public ERC20(name, symbol, decimals) {}

    function _setAaveGovernance(ITransferHook aaveGovernance) internal virtual {
        _aaveGovernance = aaveGovernance;
    }

    /**
    * @dev Writes a snapshot for an owner of tokens
    * @param owner The owner of the tokens
    * @param oldValue The value before the operation that is gonna be executed after the snapshot
    * @param newValue The value after the operation
    */
    function _writeSnapshot(address owner, uint128 oldValue, uint128 newValue) internal virtual {
        uint128 currentBlock = uint128(block.number);

        uint256 ownerCountOfSnapshots = _countsSnapshots[owner];
        mapping (uint256 => Snapshot) storage snapshotsOwner = _snapshots[owner];

        // Doing multiple operations in the same block
        if (ownerCountOfSnapshots != 0 && snapshotsOwner[ownerCountOfSnapshots.sub(1)].blockNumber == currentBlock) {
            snapshotsOwner[ownerCountOfSnapshots.sub(1)].value = newValue;
        } else {
            snapshotsOwner[ownerCountOfSnapshots] = Snapshot(currentBlock, newValue);
            _countsSnapshots[owner] = ownerCountOfSnapshots.add(1);
        }

        emit SnapshotDone(owner, oldValue, newValue);
    }

    /**
    * @dev Writes a snapshot before any operation involving transfer of value: _transfer, _mint and _burn
    * - On _transfer, it writes snapshots for both "from" and "to"
    * - On _mint, only for _to
    * - On _burn, only for _from
    * @param from the from address
    * @param to the to address
    * @param amount the amount to transfer
    */
    function _beforeTokenTransfer(address from, address to, uint256 amount) internal override {
        if (from == to) {
            return;
        }

        if (from != address(0)) {
            uint256 fromBalance = balanceOf(from);
            _writeSnapshot(from, uint128(fromBalance), uint128(fromBalance.sub(amount)));
        }
        if (to != address(0)) {
            uint256 toBalance = balanceOf(to);
            _writeSnapshot(to, uint128(toBalance), uint128(toBalance.add(amount)));
        }

        // caching the aave governance address to avoid multiple state loads
        ITransferHook aaveGovernance = _aaveGovernance;
        if (aaveGovernance != ITransferHook(0)) {
            aaveGovernance.onTransfer(from, to, amount);
        }
    }
}

File 19 of 28 : InitializableUpgradeabilityProxy.sol
// SPDX-License-Identifier: MIT
pragma solidity 0.6.12;

import './BaseUpgradeabilityProxy.sol';

/**
 * @title InitializableUpgradeabilityProxy
 * @dev From https://github.com/OpenZeppelin/openzeppelin-sdk/tree/solc-0.6/packages/lib/contracts/upgradeability
 * Extends BaseUpgradeabilityProxy with an initializer for initializing
 * implementation and init data.
 */
contract InitializableUpgradeabilityProxy is BaseUpgradeabilityProxy {
    /**
     * @dev Contract initializer.
     * @param _logic Address of the initial implementation.
     * @param _data Data to send as msg.data to the implementation to initialize the proxied contract.
     * It should include the signature and the parameters of the function to be called, as described in
     * https://solidity.readthedocs.io/en/v0.4.24/abi-spec.html#function-selector-and-argument-encoding.
     * This parameter is optional, if no data is given the initialization call to proxied contract will be skipped.
     */
    function initialize(address _logic, bytes memory _data) public payable {
        require(_implementation() == address(0));
        assert(
            IMPLEMENTATION_SLOT == bytes32(uint256(keccak256('eip1967.proxy.implementation')) - 1)
        );
        _setImplementation(_logic);
        if (_data.length > 0) {
            (bool success, ) = _logic.delegatecall(_data);
            require(success);
        }
    }
}

File 20 of 28 : SafeERC20.sol
// SPDX-License-Identifier: MIT

pragma solidity 0.6.12;

import {IERC20} from "../interfaces/IERC20.sol";
import {SafeMath} from "./SafeMath.sol";
import {Address} from "./Address.sol";

/**
 * @title SafeERC20
 * @dev From https://github.com/OpenZeppelin/openzeppelin-contracts
 * Wrappers around ERC20 operations that throw on failure (when the token
 * contract returns false). Tokens that return no value (and instead revert or
 * throw on failure) are also supported, non-reverting calls are assumed to be
 * successful.
 * To use this library you can add a `using SafeERC20 for IERC20;` statement to your contract,
 * which allows you to call the safe operations as `token.safeTransfer(...)`, etc.
 */
library SafeERC20 {
    using SafeMath for uint256;
    using Address for address;

    function safeTransfer(IERC20 token, address to, uint256 value) internal {
        callOptionalReturn(token, abi.encodeWithSelector(token.transfer.selector, to, value));
    }

    function safeTransferFrom(IERC20 token, address from, address to, uint256 value) internal {
        callOptionalReturn(token, abi.encodeWithSelector(token.transferFrom.selector, from, to, value));
    }

    function safeApprove(IERC20 token, address spender, uint256 value) internal {
        require((value == 0) || (token.allowance(address(this), spender) == 0),
            "SafeERC20: approve from non-zero to non-zero allowance"
        );
        callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, value));
    }
    
    function callOptionalReturn(IERC20 token, bytes memory data) private {
        require(address(token).isContract(), "SafeERC20: call to non-contract");

        // solhint-disable-next-line avoid-low-level-calls
        (bool success, bytes memory returndata) = address(token).call(data);
        require(success, "SafeERC20: low-level call failed");

        if (returndata.length > 0) { // Return data is optional
            // solhint-disable-next-line max-line-length
            require(abi.decode(returndata, (bool)), "SafeERC20: ERC20 operation did not succeed");
        }
    }
}

File 21 of 28 : ATokenMock.sol
// SPDX-License-Identifier: agpl-3.0
pragma solidity 0.6.12;
pragma experimental ABIEncoderV2;

import {IAaveIncentivesController} from '../interfaces/IAaveIncentivesController.sol';
import {DistributionTypes} from '../lib/DistributionTypes.sol';
import {IAToken} from '../interfaces/IAToken.sol';

contract ATokenMock is IAToken {
  IAaveIncentivesController public _aic;
  uint256 internal _userBalance;
  uint256 internal _totalSupply;

  // hack to be able to test event from EI properly
  event RewardsAccrued(address indexed user, uint256 amount);

  // hack to be able to test event from Distribution manager properly
  event AssetConfigUpdated(address indexed asset, uint256 emission);
  event AssetIndexUpdated(address indexed asset, uint256 index);
  event UserIndexUpdated(address indexed user, address indexed asset, uint256 index);

  constructor(IAaveIncentivesController aic) public {
    _aic = aic;
  }

  function handleActionOnAic(
    address user,
    uint256 userBalance,
    uint256 totalSupply
  ) external {
    _aic.handleAction(user, userBalance, totalSupply);
  }

  function setUserBalanceAndSupply(uint256 userBalance, uint256 totalSupply) public {
    _userBalance = userBalance;
    _totalSupply = totalSupply;
  }

  function getScaledUserBalanceAndSupply(address user)
    external
    override
    view
    returns (uint256, uint256)
  {
    return (_userBalance, _totalSupply);
  }

  function cleanUserState() external {
    _userBalance = 0;
    _totalSupply = 0;
  }
}

File 22 of 28 : MockTransferHook.sol
// SPDX-License-Identifier: agpl-3.0
pragma solidity 0.6.12;

import {ITransferHook} from "../interfaces/ITransferHook.sol";

contract MockTransferHook is ITransferHook {
    event MockHookEvent();

    function onTransfer(address from, address to, uint256 amount) external override {
        emit MockHookEvent();
    }
}

File 23 of 28 : AaveDistributionManager.sol
// SPDX-License-Identifier: agpl-3.0
pragma solidity 0.6.12;
pragma experimental ABIEncoderV2;

import {SafeMath} from '../lib/SafeMath.sol';
import {DistributionTypes} from '../lib/DistributionTypes.sol';
import {IAaveDistributionManager} from '../interfaces/IAaveDistributionManager.sol';

/**
 * @title AaveDistributionManager
 * @notice Accounting contract to manage multiple staking distributions
 * @author Aave
 **/
contract AaveDistributionManager is IAaveDistributionManager {
  using SafeMath for uint256;

  struct AssetData {
    uint128 emissionPerSecond;
    uint128 lastUpdateTimestamp;
    uint256 index;
    mapping(address => uint256) users;
  }

  uint256 public immutable DISTRIBUTION_END;

  address public immutable EMISSION_MANAGER;

  uint8 public constant PRECISION = 18;

  mapping(address => AssetData) public assets;

  event AssetConfigUpdated(address indexed asset, uint256 emission);
  event AssetIndexUpdated(address indexed asset, uint256 index);
  event UserIndexUpdated(address indexed user, address indexed asset, uint256 index);

  constructor(address emissionManager, uint256 distributionDuration) public {
    DISTRIBUTION_END = block.timestamp.add(distributionDuration);
    EMISSION_MANAGER = emissionManager;
  }

  /**
   * @dev Configures the distribution of rewards for a list of assets
   * @param assetsConfigInput The list of configurations to apply
   **/
  function configureAssets(DistributionTypes.AssetConfigInput[] calldata assetsConfigInput) external override {
    require(msg.sender == EMISSION_MANAGER, 'ONLY_EMISSION_MANAGER');

    for (uint256 i = 0; i < assetsConfigInput.length; i++) {
      AssetData storage assetConfig = assets[assetsConfigInput[i].underlyingAsset];

      _updateAssetStateInternal(
        assetsConfigInput[i].underlyingAsset,
        assetConfig,
        assetsConfigInput[i].totalStaked
      );

      assetConfig.emissionPerSecond = assetsConfigInput[i].emissionPerSecond;

      emit AssetConfigUpdated(
        assetsConfigInput[i].underlyingAsset,
        assetsConfigInput[i].emissionPerSecond
      );
    }
  }

  /**
   * @dev Updates the state of one distribution, mainly rewards index and timestamp
   * @param underlyingAsset The address used as key in the distribution, for example sAAVE or the aTokens addresses on Aave
   * @param assetConfig Storage pointer to the distribution's config
   * @param totalStaked Current total of staked assets for this distribution
   * @return The new distribution index
   **/
  function _updateAssetStateInternal(
    address underlyingAsset,
    AssetData storage assetConfig,
    uint256 totalStaked
  ) internal returns (uint256) {
    uint256 oldIndex = assetConfig.index;
    uint128 lastUpdateTimestamp = assetConfig.lastUpdateTimestamp;

    if (block.timestamp == lastUpdateTimestamp) {
      return oldIndex;
    }

    uint256 newIndex = _getAssetIndex(
      oldIndex,
      assetConfig.emissionPerSecond,
      lastUpdateTimestamp,
      totalStaked
    );

    if (newIndex != oldIndex) {
      assetConfig.index = newIndex;
      emit AssetIndexUpdated(underlyingAsset, newIndex);
    }

    assetConfig.lastUpdateTimestamp = uint128(block.timestamp);

    return newIndex;
  }

  /**
   * @dev Updates the state of an user in a distribution
   * @param user The user's address
   * @param asset The address of the reference asset of the distribution
   * @param stakedByUser Amount of tokens staked by the user in the distribution at the moment
   * @param totalStaked Total tokens staked in the distribution
   * @return The accrued rewards for the user until the moment
   **/
  function _updateUserAssetInternal(
    address user,
    address asset,
    uint256 stakedByUser,
    uint256 totalStaked
  ) internal returns (uint256) {
    AssetData storage assetData = assets[asset];
    uint256 userIndex = assetData.users[user];
    uint256 accruedRewards = 0;

    uint256 newIndex = _updateAssetStateInternal(asset, assetData, totalStaked);

    if (userIndex != newIndex) {
      if (stakedByUser != 0) {
        accruedRewards = _getRewards(stakedByUser, newIndex, userIndex);
      }

      assetData.users[user] = newIndex;
      emit UserIndexUpdated(user, asset, newIndex);
    }

    return accruedRewards;
  }

  /**
   * @dev Used by "frontend" stake contracts to update the data of an user when claiming rewards from there
   * @param user The address of the user
   * @param stakes List of structs of the user data related with his stake
   * @return The accrued rewards for the user until the moment
   **/
  function _claimRewards(address user, DistributionTypes.UserStakeInput[] memory stakes)
    internal
    returns (uint256)
  {
    uint256 accruedRewards = 0;

    for (uint256 i = 0; i < stakes.length; i++) {
      accruedRewards = accruedRewards.add(
        _updateUserAssetInternal(
          user,
          stakes[i].underlyingAsset,
          stakes[i].stakedByUser,
          stakes[i].totalStaked
        )
      );
    }

    return accruedRewards;
  }

  /**
   * @dev Return the accrued rewards for an user over a list of distribution
   * @param user The address of the user
   * @param stakes List of structs of the user data related with his stake
   * @return The accrued rewards for the user until the moment
   **/
  function _getUnclaimedRewards(address user, DistributionTypes.UserStakeInput[] memory stakes)
    internal
    view
    returns (uint256)
  {
    uint256 accruedRewards = 0;

    for (uint256 i = 0; i < stakes.length; i++) {
      AssetData storage assetConfig = assets[stakes[i].underlyingAsset];
      uint256 assetIndex = _getAssetIndex(
        assetConfig.index,
        assetConfig.emissionPerSecond,
        assetConfig.lastUpdateTimestamp,
        stakes[i].totalStaked
      );

      accruedRewards = accruedRewards.add(
        _getRewards(stakes[i].stakedByUser, assetIndex, assetConfig.users[user])
      );
    }
    return accruedRewards;
  }

  /**
   * @dev Internal function for the calculation of user's rewards on a distribution
   * @param principalUserBalance Amount staked by the user on a distribution
   * @param reserveIndex Current index of the distribution
   * @param userIndex Index stored for the user, representation his staking moment
   * @return The rewards
   **/
  function _getRewards(
    uint256 principalUserBalance,
    uint256 reserveIndex,
    uint256 userIndex
  ) internal pure returns (uint256) {
    return principalUserBalance.mul(reserveIndex.sub(userIndex)).div(10**uint256(PRECISION));
  }

  /**
   * @dev Calculates the next value of an specific distribution index, with validations
   * @param currentIndex Current index of the distribution
   * @param emissionPerSecond Representing the total rewards distributed per second per asset unit, on the distribution
   * @param lastUpdateTimestamp Last moment this distribution was updated
   * @param totalBalance of tokens considered for the distribution
   * @return The new index.
   **/
  function _getAssetIndex(
    uint256 currentIndex,
    uint256 emissionPerSecond,
    uint128 lastUpdateTimestamp,
    uint256 totalBalance
  ) internal view returns (uint256) {
    if (
      emissionPerSecond == 0 ||
      totalBalance == 0 ||
      lastUpdateTimestamp == block.timestamp ||
      lastUpdateTimestamp >= DISTRIBUTION_END
    ) {
      return currentIndex;
    }

    uint256 currentTimestamp = block.timestamp > DISTRIBUTION_END
      ? DISTRIBUTION_END
      : block.timestamp;
    uint256 timeDelta = currentTimestamp.sub(lastUpdateTimestamp);
    return
      emissionPerSecond.mul(timeDelta).mul(10**uint256(PRECISION)).div(totalBalance).add(
        currentIndex
      );
  }

  /**
   * @dev Returns the data of an user on a distribution
   * @param user Address of the user
   * @param asset The address of the reference asset of the distribution
   * @return The new index
   **/
  function getUserAssetData(address user, address asset) public view returns (uint256) {
    return assets[asset].users[user];
  }
}

File 24 of 28 : AaveIncentivesController.sol
// SPDX-License-Identifier: agpl-3.0
pragma solidity 0.6.12;
pragma experimental ABIEncoderV2;

import {DistributionTypes} from '../lib/DistributionTypes.sol';

import {IERC20} from '../interfaces/IERC20.sol';
import {IAToken} from '../interfaces/IAToken.sol';
import {IAaveIncentivesController} from '../interfaces/IAaveIncentivesController.sol';
import {IStakedAave} from '../interfaces/IStakedAave.sol';
import {VersionedInitializable} from '../utils/VersionedInitializable.sol';
import {AaveDistributionManager} from './AaveDistributionManager.sol';

/**
 * @title AaveIncentivesController
 * @notice Distributor contract for rewards to the Aave protocol
 * @author Aave
 **/
contract AaveIncentivesController is
  IAaveIncentivesController,
  VersionedInitializable,
  AaveDistributionManager
{
  uint256 public constant REVISION = 1;

  IStakedAave public immutable PSM;

  IERC20 public immutable REWARD_TOKEN;
  address public immutable REWARDS_VAULT;
  uint256 public immutable EXTRA_PSM_REWARD;

  mapping(address => uint256) internal _usersUnclaimedRewards;

  event RewardsAccrued(address indexed user, uint256 amount);
  event RewardsClaimed(address indexed user, address indexed to, uint256 amount);

  constructor(
    IERC20 rewardToken,
    address rewardsVault,
    IStakedAave psm,
    uint256 extraPsmReward,
    address emissionManager,
    uint128 distributionDuration
  ) public AaveDistributionManager(emissionManager, distributionDuration) {
    REWARD_TOKEN = rewardToken;
    REWARDS_VAULT = rewardsVault;
    PSM = psm;
    EXTRA_PSM_REWARD = extraPsmReward;
  }

  /**
   * @dev Called by the proxy contract. Not used at the moment, but for the future
   **/
  function initialize() external initializer {
    // to unlock possibility to stake on behalf of the user
    REWARD_TOKEN.approve(address(PSM), type(uint256).max);
  }

  /**
   * @dev Called by the corresponding asset on any update that affects the rewards distribution
   * @param user The address of the user
   * @param userBalance The balance of the user of the asset in the lending pool
   * @param totalSupply The total supply of the asset in the lending pool
   **/
  function handleAction(
    address user,
    uint256 userBalance,
    uint256 totalSupply
  ) external override {
    uint256 accruedRewards = _updateUserAssetInternal(user, msg.sender, userBalance, totalSupply);
    if (accruedRewards != 0) {
      _usersUnclaimedRewards[user] = _usersUnclaimedRewards[user].add(accruedRewards);
      emit RewardsAccrued(user, accruedRewards);
    }
  }

  /**
   * @dev Returns the total of rewards of an user, already accrued + not yet accrued
   * @param user The address of the user
   * @return The rewards
   **/
  function getRewardsBalance(address[] calldata assets, address user)
    external
    override
    view
    returns (uint256)
  {
    uint256 unclaimedRewards = _usersUnclaimedRewards[user];

    DistributionTypes.UserStakeInput[] memory userState = new DistributionTypes.UserStakeInput[](
      assets.length
    );
    for (uint256 i = 0; i < assets.length; i++) {
      userState[i].underlyingAsset = assets[i];
      (userState[i].stakedByUser, userState[i].totalStaked) = IAToken(assets[i])
        .getScaledUserBalanceAndSupply(user);
    }
    unclaimedRewards = unclaimedRewards.add(_getUnclaimedRewards(user, userState));
    return unclaimedRewards;
  }

  /**
   * @dev Claims reward for an user, on all the assets of the lending pool, accumulating the pending rewards
   * @param amount Amount of rewards to claim
   * @param to Address that will be receiving the rewards
   * @param stake Boolean flag to determined if the claimed rewards should be staked in the Safety Module or not
   * @return Rewards claimed
   **/
  function claimRewards(
    address[] calldata assets,
    uint256 amount,
    address to,
    bool stake
  ) external override returns (uint256) {
    if (amount == 0) {
      return 0;
    }
    address user = msg.sender;
    uint256 unclaimedRewards = _usersUnclaimedRewards[user];

    DistributionTypes.UserStakeInput[] memory userState = new DistributionTypes.UserStakeInput[](
      assets.length
    );
    for (uint256 i = 0; i < assets.length; i++) {
      userState[i].underlyingAsset = assets[i];
      (userState[i].stakedByUser, userState[i].totalStaked) = IAToken(assets[i])
        .getScaledUserBalanceAndSupply(user);
    }

    uint256 accruedRewards = _claimRewards(user, userState);
    if (accruedRewards != 0) {
      unclaimedRewards = unclaimedRewards.add(accruedRewards);
      emit RewardsAccrued(user, accruedRewards);
    }

    if (unclaimedRewards == 0) {
      return 0;
    }

    uint256 amountToClaim = amount > unclaimedRewards ? unclaimedRewards : amount;
    _usersUnclaimedRewards[user] = unclaimedRewards - amountToClaim; // Safe due to the previous line

    if (stake) {
      amountToClaim = amountToClaim.add(amountToClaim.mul(EXTRA_PSM_REWARD).div(100));
      REWARD_TOKEN.transferFrom(REWARDS_VAULT, address(this), amountToClaim);
      PSM.stake(to, amountToClaim);
    } else {
      REWARD_TOKEN.transferFrom(REWARDS_VAULT, to, amountToClaim);
    }
    emit RewardsClaimed(msg.sender, to, amountToClaim);

    return amountToClaim;
  }

  /**
   * @dev returns the unclaimed rewards of the user
   * @param _user the address of the user
   * @return the unclaimed user rewards
   */
  function getUserUnclaimedRewards(address _user) external view returns (uint256) {
    return _usersUnclaimedRewards[_user];
  }

  /**
   * @dev returns the revision of the implementation contract
   */
  function getRevision() internal override pure returns (uint256) {
    return REVISION;
  }
}

File 25 of 28 : VersionedInitializable.sol
// SPDX-License-Identifier: agpl-3.0
pragma solidity 0.6.12;

/**
 * @title VersionedInitializable
 *
 * @dev Helper contract to support initializer functions. To use it, replace
 * the constructor with a function that has the `initializer` modifier.
 * WARNING: Unlike constructors, initializer functions must be manually
 * invoked. This applies both to deploying an Initializable contract, as well
 * as extending an Initializable contract via inheritance.
 * WARNING: When used with inheritance, manual care must be taken to not invoke
 * a parent initializer twice, or ensure that all initializers are idempotent,
 * because this is not dealt with automatically as with constructors.
 *
 * @author Aave, inspired by the OpenZeppelin Initializable contract
 */
abstract contract VersionedInitializable {
    /**
     * @dev Indicates that the contract has been initialized.
     */
    uint256 internal lastInitializedRevision = 0;

    /**
     * @dev Modifier to use in the initializer function of a contract.
     */
    modifier initializer() {
        uint256 revision = getRevision();
        require(
            revision > lastInitializedRevision,
            'Contract instance has already been initialized'
        );

        lastInitializedRevision = revision;

        _;
    }

    /// @dev returns the revision number of the contract.
    /// Needs to be defined in the inherited class as a constant.
    function getRevision() internal virtual pure returns (uint256);

    // Reserved storage space to allow for layout changes in the future.
    uint256[50] private ______gap;
}

File 26 of 28 : StakedAave.sol
// SPDX-License-Identifier: agpl-3.0
pragma solidity 0.6.12;
pragma experimental ABIEncoderV2;

import {IERC20} from '../interfaces/IERC20.sol';
import {StakedToken} from './StakedToken.sol';

/**
 * @title StakedAave
 * @notice StakedToken with AAVE token as staked token
 * @author Aave
 **/
contract StakedAave is StakedToken {
  string internal constant NAME = 'Staked Aave';
  string internal constant SYMBOL = 'stkAAVE';
  uint8 internal constant DECIMALS = 18;
  
  constructor(
    IERC20 stakedToken,
    IERC20 rewardToken,
    uint256 cooldownSeconds,
    uint256 unstakeWindow,
    address rewardsVault,
    address emissionManager,
    uint128 distributionDuration
  ) public StakedToken(
    stakedToken,
    rewardToken,
    cooldownSeconds,
    unstakeWindow,
    rewardsVault,
    emissionManager,
    distributionDuration,
    NAME,
    SYMBOL,
    DECIMALS) {}
}

File 27 of 28 : StakedToken.sol
// SPDX-License-Identifier: agpl-3.0
pragma solidity 0.6.12;
pragma experimental ABIEncoderV2;

import {IERC20} from '../interfaces/IERC20.sol';
import {IStakedAave} from '../interfaces/IStakedAave.sol';
import {ITransferHook} from '../interfaces/ITransferHook.sol';
import {ERC20WithSnapshot} from '../lib/ERC20WithSnapshot.sol';
import {SafeERC20} from '../lib/SafeERC20.sol';
import {VersionedInitializable} from '../utils/VersionedInitializable.sol';
import {DistributionTypes} from '../lib/DistributionTypes.sol';
import {AaveDistributionManager} from './AaveDistributionManager.sol';

/**
 * @title StakedToken
 * @notice Contract to stake Aave token, tokenize the position and get rewards, inheriting from a distribution manager contract
 * @author Aave
 **/
contract StakedToken is IStakedAave, ERC20WithSnapshot, VersionedInitializable, AaveDistributionManager {
  using SafeERC20 for IERC20;

  uint256 public constant REVISION = 1;

  IERC20 public immutable STAKED_TOKEN;
  IERC20 public immutable REWARD_TOKEN;
  uint256 public immutable COOLDOWN_SECONDS;

  /// @notice Seconds available to redeem once the cooldown period is fullfilled
  uint256 public immutable UNSTAKE_WINDOW;

  /// @notice Address to pull from the rewards, needs to have approved this contract
  address public immutable REWARDS_VAULT;

  mapping(address => uint256) public stakerRewardsToClaim;
  mapping(address => uint256) public stakersCooldowns;

  event Staked(address indexed from, address indexed onBehalfOf, uint256 amount);
  event Redeem(address indexed from, address indexed to, uint256 amount);

  event RewardsAccrued(address user, uint256 amount);
  event RewardsClaimed(address indexed from, address indexed to, uint256 amount);

  event Cooldown(address indexed user);

  constructor(
    IERC20 stakedToken,
    IERC20 rewardToken,
    uint256 cooldownSeconds,
    uint256 unstakeWindow,
    address rewardsVault,
    address emissionManager,
    uint128 distributionDuration,
    string memory name,
    string memory symbol,
    uint8 decimals
  ) public ERC20WithSnapshot(name, symbol, decimals) AaveDistributionManager(emissionManager, distributionDuration) {
    STAKED_TOKEN = stakedToken;
    REWARD_TOKEN = rewardToken;
    COOLDOWN_SECONDS = cooldownSeconds;
    UNSTAKE_WINDOW = unstakeWindow;
    REWARDS_VAULT = rewardsVault;
  }

  /**
   * @dev Called by the proxy contract
   **/
  function initialize(ITransferHook aaveGovernance, string calldata name, string calldata symbol, uint8 decimals) external initializer {
    _setName(name);
    _setSymbol(symbol);
    _setDecimals(decimals);
    _setAaveGovernance(aaveGovernance);
  }

  function stake(address onBehalfOf, uint256 amount) external override {
    require(amount != 0, 'INVALID_ZERO_AMOUNT');
    uint256 balanceOfUser = balanceOf(onBehalfOf);

    uint256 accruedRewards = _updateUserAssetInternal(
      onBehalfOf,
      address(this),
      balanceOfUser,
      totalSupply()
    );
    if (accruedRewards != 0) {
      emit RewardsAccrued(onBehalfOf, accruedRewards);
      stakerRewardsToClaim[onBehalfOf] = stakerRewardsToClaim[onBehalfOf].add(accruedRewards);
    }

    stakersCooldowns[onBehalfOf] = getNextCooldownTimestamp(0, amount, onBehalfOf, balanceOfUser);

    _mint(onBehalfOf, amount);
    IERC20(STAKED_TOKEN).safeTransferFrom(msg.sender, address(this), amount);

    emit Staked(msg.sender, onBehalfOf, amount);
  }

  /**
   * @dev Redeems staked tokens, and stop earning rewards
   * @param to Address to redeem to
   * @param amount Amount to redeem
   **/
  function redeem(address to, uint256 amount) external override {
    require(amount != 0, 'INVALID_ZERO_AMOUNT');
    //solium-disable-next-line
    uint256 cooldownStartTimestamp = stakersCooldowns[msg.sender];
    require(
      block.timestamp > cooldownStartTimestamp.add(COOLDOWN_SECONDS),
      'INSUFFICIENT_COOLDOWN'
    );
    require(
      block.timestamp.sub(cooldownStartTimestamp.add(COOLDOWN_SECONDS)) <= UNSTAKE_WINDOW,
      'UNSTAKE_WINDOW_FINISHED'
    );
    uint256 balanceOfMessageSender = balanceOf(msg.sender);

    uint256 amountToRedeem = (amount > balanceOfMessageSender) ? balanceOfMessageSender : amount;

    _updateCurrentUnclaimedRewards(msg.sender, balanceOfMessageSender, true);

    _burn(msg.sender, amountToRedeem);

    if (balanceOfMessageSender.sub(amountToRedeem) == 0) {
      stakersCooldowns[msg.sender] = 0;
    }

    IERC20(STAKED_TOKEN).safeTransfer(to, amountToRedeem);

    emit Redeem(msg.sender, to, amountToRedeem);
  }

  /**
   * @dev Activates the cooldown period to unstake
   * - It can't be called if the user is not staking
   **/
  function cooldown() external override {
    require(balanceOf(msg.sender) != 0, "INVALID_BALANCE_ON_COOLDOWN");
    //solium-disable-next-line
    stakersCooldowns[msg.sender] = block.timestamp;

    emit Cooldown(msg.sender);
  }

  /**
   * @dev Claims an `amount` of `REWARD_TOKEN` to the address `to`
   * @param to Address to stake for
   * @param amount Amount to stake
   **/
  function claimRewards(address to, uint256 amount) external override {
    uint256 newTotalRewards = _updateCurrentUnclaimedRewards(
      msg.sender,
      balanceOf(msg.sender),
      false
    );
    uint256 amountToClaim = (amount == type(uint256).max) ? newTotalRewards : amount;

    stakerRewardsToClaim[msg.sender] = newTotalRewards.sub(amountToClaim, "INVALID_AMOUNT");

    REWARD_TOKEN.safeTransferFrom(REWARDS_VAULT, to, amountToClaim);

    emit RewardsClaimed(msg.sender, to, amountToClaim);
  }

  /**
   * @dev Internal ERC20 _transfer of the tokenized staked tokens
   * @param from Address to transfer from
   * @param to Address to transfer to
   * @param amount Amount to transfer
   **/
  function _transfer(
    address from,
    address to,
    uint256 amount
  ) internal override {
    uint256 balanceOfFrom = balanceOf(from);
    // Sender
    _updateCurrentUnclaimedRewards(from, balanceOfFrom, true);

    // Recipient
    if (from != to) {
      uint256 balanceOfTo = balanceOf(to);
      _updateCurrentUnclaimedRewards(to, balanceOfTo, true);

      uint256 previousSenderCooldown = stakersCooldowns[from];
      stakersCooldowns[to] = getNextCooldownTimestamp(previousSenderCooldown, amount, to, balanceOfTo);
      // if cooldown was set and whole balance of sender was transferred - clear cooldown
      if (balanceOfFrom == amount && previousSenderCooldown != 0) {
        stakersCooldowns[from] = 0;
      }
    }

    super._transfer(from, to, amount);
  }

  /**
   * @dev Updates the user state related with his accrued rewards
   * @param user Address of the user
   * @param userBalance The current balance of the user
   * @param updateStorage Boolean flag used to update or not the stakerRewardsToClaim of the user
   * @return The unclaimed rewards that were added to the total accrued
   **/
  function _updateCurrentUnclaimedRewards(
    address user,
    uint256 userBalance,
    bool updateStorage
  ) internal returns (uint256) {
    uint256 accruedRewards = _updateUserAssetInternal(
      user,
      address(this),
      userBalance,
      totalSupply()
    );
    uint256 unclaimedRewards = stakerRewardsToClaim[user].add(accruedRewards);

    if (accruedRewards != 0) {
      if (updateStorage) {
        stakerRewardsToClaim[user] = unclaimedRewards;
      }
      emit RewardsAccrued(user, accruedRewards);
    }

    return unclaimedRewards;
  }

  /**
   * @dev Calculates the how is gonna be a new cooldown timestamp depending on the sender/receiver situation
   *  - If the timestamp of the sender is "better" or the timestamp of the recipient is 0, we take the one of the recipient
   *  - Weighted average of from/to cooldown timestamps if:
   *    # The sender doesn't have the cooldown activated (timestamp 0).
   *    # The sender timestamp is expired
   *    # The sender has a "worse" timestamp
   *  - If the receiver's cooldown timestamp expired (too old), the next is 0
   * @param fromCooldownTimestamp Cooldown timestamp of the sender
   * @param amountToReceive Amount
   * @param toAddress Address of the recipient
   * @param toBalance Current balance of the receiver
   * @return The new cooldown timestamp
   **/
  function getNextCooldownTimestamp(
    uint256 fromCooldownTimestamp,
    uint256 amountToReceive,
    address toAddress,
    uint256 toBalance
  ) public returns (uint256) {
    uint256 toCooldownTimestamp = stakersCooldowns[toAddress];
    if (toCooldownTimestamp == 0) {
      return 0;
    }

    uint256 minimalValidCooldownTimestamp = block.timestamp.sub(COOLDOWN_SECONDS).sub(
      UNSTAKE_WINDOW
    );

    if (minimalValidCooldownTimestamp > toCooldownTimestamp) {
      toCooldownTimestamp = 0;
    } else {
      uint256 fromCooldownTimestamp = (minimalValidCooldownTimestamp > fromCooldownTimestamp)
        ? block.timestamp
        : fromCooldownTimestamp;

      if (fromCooldownTimestamp < toCooldownTimestamp) {
        return toCooldownTimestamp;
      } else {
        toCooldownTimestamp = (
          amountToReceive.mul(fromCooldownTimestamp).add(toBalance.mul(toCooldownTimestamp))
        )
          .div(amountToReceive.add(toBalance));
      }
    }
    stakersCooldowns[toAddress] = toCooldownTimestamp;

    return toCooldownTimestamp;
  }

  /**
   * @dev Return the total rewards pending to claim by an staker
   * @param staker The staker address
   * @return The rewards
   */
  function getTotalRewardsBalance(address staker) external view returns (uint256) {

      DistributionTypes.UserStakeInput[] memory userStakeInputs
     = new DistributionTypes.UserStakeInput[](1);
    userStakeInputs[0] = DistributionTypes.UserStakeInput({
      underlyingAsset: address(this),
      stakedByUser: balanceOf(staker),
      totalStaked: totalSupply()
    });
    return stakerRewardsToClaim[staker].add(_getUnclaimedRewards(staker, userStakeInputs));
  }

  /**
   * @dev returns the revision of the implementation contract
   * @return The revision
   */
  function getRevision() internal override pure returns (uint256) {
    return REVISION;
  }
}

File 28 of 28 : MintableErc20.sol
// SPDX-License-Identifier: agpl-3.0
pragma solidity 0.6.12;

import '../lib/ERC20.sol';

/**
 * @title ERC20Mintable
 * @dev ERC20 minting logic
 */
contract MintableErc20 is ERC20 {
    constructor(
        string memory name,
        string memory symbol,
        uint8 decimals
    ) public ERC20(name, symbol, decimals) {}

    /**
     * @dev Function to mint tokens
     * @param value The amount of tokens to mint.
     * @return A boolean that indicates if the operation was successful.
     */
    function mint(uint256 value) public returns (bool) {
        _mint(msg.sender, value);
        return true;
    }
}

Settings
{
  "metadata": {
    "useLiteralContent": false
  },
  "optimizer": {
    "enabled": true,
    "runs": 200
  },
  "outputSelection": {
    "*": {
      "*": [
        "evm.bytecode",
        "evm.deployedBytecode",
        "abi"
      ]
    }
  },
  "evmVersion": "istanbul",
  "libraries": {}
}

Contract Security Audit

Contract ABI

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