demo-router: contract + task

README.md

@@ -43,9 +43,8 @@ as well as performing operations like minting, swapping, and burning
    [View the demo task](https://github.com/NilFoundation/uniswap-v2-nil/blob/main/tasks/core/demo.ts)
 
    **Important:**
-   - The `UniswapV2Pair` is deployed on the same shard as the `UniswapV2Factory`.
    - Calculations are processed on the user's side.
-   - Both the currency address and its ID are stored.
+   - Both the currency address and its ID are stored in the pair contract.
 
 
 2. **Using Factory, Pair, and Router Contracts**  

contracts/UniswapV2Router01.sol

@@ -9,16 +9,6 @@ import "@nilfoundation/smart-contracts/contracts/Nil.sol";
 import "./interfaces/IUniswapV2Pair.sol";
 
 contract UniswapV2Router01 is IUniswapV2Router01, NilCurrencyBase {
-    // not used now
-    address public immutable factory;
-
-
-    constructor(address _factory) public {
-        // Revert if the factory address is the zero address or an empty string
-        require(_factory != address(0), "Factory address cannot be the zero address");
-
-        factory = _factory;
-    }
 
     modifier sameShard(address _addr) {
         require(Nil.getShardId(_addr) == Nil.getShardId(address(this)), "Sync calls require same shard for all contracts");

ignition/modules/Router.ts

@@ -1,12 +1,7 @@
 import { buildModule } from "@nomicfoundation/hardhat-ignition/modules";
 
 module.exports = buildModule("DeployUniswapV2Router01", (m) => {
-  const factory = m.getParameter(
-    "factory",
-    "0x0000000000000000000000000000000000000000",
-  );
-
-  const router = m.contract("UniswapV2Router01", [factory]);
+  const router = m.contract("UniswapV2Router01");
 
   return { router };
 });

tasks/core/demo-router-sync.ts

@@ -57,9 +57,7 @@ task(
   console.log("Currency1 deployed " + currency1Address);
 
   const { deployedContract: RouterContract, contractAddress: routerAddress } =
-    await deployNilContract(hre, "UniswapV2Router01", [
-      factoryAddress.toLowerCase(),
-    ]);
+    await deployNilContract(hre, "UniswapV2Router01");
 
   console.log("Router deployed " + routerAddress);
 

tasks/core/demo-router.ts

@@ -57,9 +57,7 @@ task("demo-router", "Run demo with Uniswap Router").setAction(
     console.log("Currency1 deployed " + currency1Address);
 
     const { deployedContract: RouterContract, contractAddress: routerAddress } =
-      await deployNilContract(hre, "UniswapV2Router01", [
-        factoryAddress.toLowerCase(),
-      ]);
+      await deployNilContract(hre, "UniswapV2Router01");
 
     console.log("Router deployed " + routerAddress);