Setup of hardhat for precompiles

.dockerignore

@@ -3,3 +3,6 @@
 build/_workspace
 build/_bin
 tests/testdata
+
+vendor
+contracts/node_modules

.github/workflows/ci.yml

@@ -86,3 +86,22 @@ jobs:
 #      - name: run simulation result parser
 #        working-directory: ./hive
 #        run: result_parser -path_to_results ./workspace/logs
+
+  precompile:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - name: Set up Go
+        uses: actions/setup-go@v4
+        with:
+          go-version: '1.21.4'
+      - name: build geth docker image
+        run: make docker-build-dev
+      - name: run geth docker container
+        run: docker-compose up -d
+      - name: install hardhat
+        working-directory: ./contracts
+        run: npm install --save-dev hardhat
+      - name: run precompile tests
+        working-directory: ./contracts
+        run: npx hardhat test

.gitignore

@@ -47,3 +47,10 @@ profile.cov
 /dashboard/assets/package-lock.json
 
 **/yarn-error.log
+logs/
+
+tests/spec-tests/
+
+contracts/artifacts
+contracts/cache
+contracts/node_modules

Dockerfile.dev

@@ -0,0 +1,12 @@
+FROM golang:1.20-alpine
+
+RUN apk add bash make curl
+
+RUN mkdir -p $GOPATH/src/github.com/Kava-Labs/go-ethereum
+WORKDIR $GOPATH/src/github.com/Kava-Labs/go-ethereum
+
+COPY . .
+RUN make geth
+RUN cp ./build/bin/geth $GOPATH/bin/
+
+CMD ["geth", "--dev", "--http", "--http.addr=0.0.0.0"]

Makefile

@@ -48,3 +48,6 @@ devtools:
 	env GOBIN= go install ./cmd/abigen
 	@type "solc" 2> /dev/null || echo 'Please install solc'
 	@type "protoc" 2> /dev/null || echo 'Please install protoc'
+
+docker-build-dev:
+	docker build -t go-ethereum-dev -f Dockerfile.dev .

contracts/contracts/ExampleStatelessSum3.sol

@@ -0,0 +1,14 @@
+pragma solidity ^0.8.0;
+
+import "hardhat/console.sol";
+
+address constant PRECOMPILED_STATELESS_SUM3_CONTRACT_ADDRESS = address(0x0b);
+
+contract ExampleStatelessSum3 {
+    function sum3(uint256 a, uint256 b, uint256 c) public view returns (bytes memory) {
+        (bool ok, bytes memory data) = address(PRECOMPILED_STATELESS_SUM3_CONTRACT_ADDRESS).staticcall(abi.encode(a,b,c));
+        require(ok, "call to precompiled contract failed");
+
+        return data;
+    }
+}

contracts/hardhat.config.ts

@@ -0,0 +1,15 @@
+import { HardhatUserConfig } from "hardhat/config";
+import "@nomicfoundation/hardhat-toolbox";
+
+const config: HardhatUserConfig = {
+  defaultNetwork: "geth",
+  networks: {
+    hardhat: {},
+    geth: {
+      url: "http://localhost:8545",
+    }
+  },
+  solidity: "0.8.19",
+};
+
+export default config;