Complete quest 1

contracts/protocol/integration/exchange/UniswapV2ExchangeAdapter.sol

@@ -14,7 +14,7 @@
     limitations under the License.
 
     SPDX-License-Identifier: Apache License, Version 2.0
-    
+
 */
 
 pragma solidity ^0.6.10;
@@ -24,21 +24,21 @@ pragma experimental "ABIEncoderV2";
 contract UniswapV2ExchangeAdapter {
 
     /* ============= State Variable ============= */
-    /** 
+    /**
     * Address of Uniswap Exchange V2 Router Contract
     **/
 
     /*
     * Write a state variable to store the address of the Uniswap Exchange V2 Router Contract
     */
-   
-   
-                    // YOUR CODE HERE
+
+
+    address public immutable router;
 
 
 
     /* ============= Constructor ============= */
-    /** 
+    /**
     * Set state variable
     * @param _router Address of Uniswap Exchange V2 Rounter Contract
     **/
@@ -48,12 +48,13 @@ contract UniswapV2ExchangeAdapter {
     */
 
 
-                    // YOUR CODE HERE
-
+    constructor(address _router) public {
+      router = _router;
+    }
 
 
     /* ============ External Getter Functions ============ */
-  
+
       /**
      * Calculate UniSwap trade encoded calldata. To be invoked on the SetToken.
      *
@@ -70,16 +71,22 @@ contract UniswapV2ExchangeAdapter {
      */
 
 
-     /* 
-     * Write getTradeCalldata function with the parameters / return values listed above. 
+     /*
+     * Write getTradeCalldata function with the parameters / return values listed above.
      * The function will return 3 values: address of the uniswap router, 0 for Call value, trade calldata
      */
 
-    function getTradeCalldata(/*YOUR CODE HERE*/) external view returns (/*YOUR CODE HERE*/) {
+    function getTradeCalldata(
+        address _sourceToken,
+        address _destinationToken,
+        address _destinationAddress,
+        uint256 _sourceQuantity,
+        uint256 _minDestinationQuantity,
+        bytes memory _data) external view returns (address, uint256, bytes memory) {
 
 
-    /* 
-    * We have created a path for the address' of _sourceToken and _destinationToken 
+    /*
+    * We have created a path for the address' of _sourceToken and _destinationToken
     * to be used in the function call to the uniswap contract.
     */
 
@@ -92,17 +99,23 @@ contract UniswapV2ExchangeAdapter {
         } else {
             path = abi.decode(_data, (address[]));
         }
-
 
-    /* 
-    * Create a bytes memory variable called 'callData' to store the abi.encodedWithSignature data from Uniswap function swapExactTokensForTokens.  
+
+    /*
+    * Create a bytes memory variable called 'callData' to store the abi.encodedWithSignature data from Uniswap function swapExactTokensForTokens.
     * Please see README.md resources for more details on the Uniswap function swapExactTokensForTokens.
-    */   
+    */
 
-                    // YOUR CODE HERE
+        bytes memory callData = abi.encodeWithSignature(
+            "swapExactTokensForTokens(uint256,uint256,address[],address,uint256)",
+            _sourceQuantity,
+            _minDestinationQuantity,
+            path,
+            _destinationAddress,
+            block.timestamp);
 
 
-          return (/*YOUR CODE HERE*/);
+        return (router, 0, callData);
 
      }
 
@@ -120,7 +133,13 @@ contract UniswapV2ExchangeAdapter {
     *
     */
 
-                // YOUR CODE HERE
+    function getSpender()
+        external
+        view
+        returns (address)
+    {
+        return router;
+    }
 
 }
 

utils/contracts/index.ts

@@ -83,6 +83,7 @@ export { Uint256ArrayUtilsMock } from "../../typechain/Uint256ArrayUtilsMock";
 export { Uni } from "../../typechain/Uni";
 export { UniswapPairPriceAdapter } from "../../typechain/UniswapPairPriceAdapter";
 export { UniswapV2IndexExchangeAdapter } from "../../typechain/UniswapV2IndexExchangeAdapter";
+export { UniswapV2ExchangeAdapter } from "../../typechain/UniswapV2ExchangeAdapter";
 export { UniswapV2TransferFeeExchangeAdapter } from "../../typechain/UniswapV2TransferFeeExchangeAdapter";
 export { UniswapV2Factory } from "../../typechain/UniswapV2Factory";
 export { UniswapV2Pair } from "../../typechain/UniswapV2Pair";

utils/deploys/deployAdapters.ts

@@ -15,6 +15,7 @@ import {
   CompoundWrapAdapter,
   YearnWrapAdapter,
   UniswapPairPriceAdapter,
+  UniswapV2ExchangeAdapter,
   UniswapV2IndexExchangeAdapter,
   UniswapV2TransferFeeExchangeAdapter,
   ZeroExApiAdapter,
@@ -40,6 +41,7 @@ import { AaveWrapAdapter__factory } from "../../typechain/factories/AaveWrapAdap
 import { CompoundWrapAdapter__factory } from "../../typechain/factories/CompoundWrapAdapter__factory";
 import { YearnWrapAdapter__factory } from "../../typechain/factories/YearnWrapAdapter__factory";
 import { UniswapPairPriceAdapter__factory } from "../../typechain/factories/UniswapPairPriceAdapter__factory";
+import { UniswapV2ExchangeAdapter__factory } from "../../typechain/factories/UniswapV2ExchangeAdapter__factory";
 import { UniswapV2TransferFeeExchangeAdapter__factory } from "../../typechain/factories/UniswapV2TransferFeeExchangeAdapter__factory";
 import { UniswapV2IndexExchangeAdapter__factory } from "../../typechain/factories/UniswapV2IndexExchangeAdapter__factory";
 import { SynthetixExchangeAdapter__factory } from "../../typechain/factories/SynthetixExchangeAdapter__factory";
@@ -77,6 +79,10 @@ export default class DeployAdapters {
     return await new UniswapV2IndexExchangeAdapter__factory(this._deployerSigner).deploy(uniswapV2Router);
   }
 
+  public async deployUniswapV2ExchangeAdapter(uniswapV2Router: Address): Promise<UniswapV2ExchangeAdapter> {
+    return await new UniswapV2ExchangeAdapter__factory(this._deployerSigner).deploy(uniswapV2Router);
+  }
+
   public async deployAaveGovernanceAdapter(aaveProtoGovernance: Address, aaveToken: Address): Promise<AaveGovernanceAdapter> {
     return await new AaveGovernanceAdapter__factory(this._deployerSigner).deploy(aaveProtoGovernance, aaveToken);
   }