NoOp (#7)

* add foundry contracts for testing and examples

* forge install: v4-core

* forge install: v4-periphery

* fix v4 deps

* add no op example

* no op swap example

* linting

.gitmodules

@@ -0,0 +1,6 @@
+[submodule "contracts/lib/v4-core"]
+	path = contracts/lib/v4-core
+	url = https://github.com/uniswap/v4-core
+[submodule "contracts/lib/v4-periphery"]
+	path = contracts/lib/v4-periphery
+	url = https://github.com/uniswap/v4-periphery

contracts/.gitignore

@@ -0,0 +1,3 @@
+cache
+out
+broadcast

contracts/README.md

@@ -0,0 +1,66 @@
+## Foundry
+
+**Foundry is a blazing fast, portable and modular toolkit for Ethereum application development written in Rust.**
+
+Foundry consists of:
+
+-   **Forge**: Ethereum testing framework (like Truffle, Hardhat and DappTools).
+-   **Cast**: Swiss army knife for interacting with EVM smart contracts, sending transactions and getting chain data.
+-   **Anvil**: Local Ethereum node, akin to Ganache, Hardhat Network.
+-   **Chisel**: Fast, utilitarian, and verbose solidity REPL.
+
+## Documentation
+
+https://book.getfoundry.sh/
+
+## Usage
+
+### Build
+
+```shell
+$ forge build
+```
+
+### Test
+
+```shell
+$ forge test
+```
+
+### Format
+
+```shell
+$ forge fmt
+```
+
+### Gas Snapshots
+
+```shell
+$ forge snapshot
+```
+
+### Anvil
+
+```shell
+$ anvil
+```
+
+### Deploy
+
+```shell
+$ forge script script/Counter.s.sol:CounterScript --rpc-url <your_rpc_url> --private-key <your_private_key>
+```
+
+### Cast
+
+```shell
+$ cast <subcommand>
+```
+
+### Help
+
+```shell
+$ forge --help
+$ anvil --help
+$ cast --help
+```

contracts/foundry.toml

@@ -0,0 +1,12 @@
+[profile.default]
+src = "src"
+out = "out"
+libs = ["lib"]
+ffi = true
+fs_permissions = [{ access = "read-write", path = ".forge-snapshots/"}]
+cancun = true
+
+# For Linux/WSL2 systems, please change to `lib/v4-core/bin/solc-static-linux`
+solc = "lib/v4-core/bin/solc-mac"
+
+# See more config options https://github.com/foundry-rs/foundry/tree/master/config

contracts/lib/forge-std/.github/workflows/ci.yml

@@ -0,0 +1,134 @@
+name: CI
+
+on:
+  workflow_dispatch:
+  pull_request:
+  push:
+    branches:
+      - master
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v3
+
+      - name: Install Foundry
+        uses: onbjerg/foundry-toolchain@v1
+        with:
+          version: nightly
+
+      - name: Print forge version
+        run: forge --version
+
+      # Backwards compatibility checks:
+      # - the oldest and newest version of each supported minor version
+      # - versions with specific issues
+      - name: Check compatibility with latest
+        if: always()
+        run: |
+          output=$(forge build --skip test)
+
+          if echo "$output" | grep -q "Warning"; then
+            echo "$output"
+            exit 1
+          fi
+
+      - name: Check compatibility with 0.8.0
+        if: always()
+        run: |
+          output=$(forge build --skip test --use solc:0.8.0)
+
+          if echo "$output" | grep -q "Warning"; then
+            echo "$output"
+            exit 1
+          fi
+
+      - name: Check compatibility with 0.7.6
+        if: always()
+        run: |
+          output=$(forge build --skip test --use solc:0.7.6)
+
+          if echo "$output" | grep -q "Warning"; then
+            echo "$output"
+            exit 1
+          fi
+
+      - name: Check compatibility with 0.7.0
+        if: always()
+        run: |
+          output=$(forge build --skip test --use solc:0.7.0)
+
+          if echo "$output" | grep -q "Warning"; then
+            echo "$output"
+            exit 1
+          fi
+
+      - name: Check compatibility with 0.6.12
+        if: always()
+        run: |
+          output=$(forge build --skip test --use solc:0.6.12)
+
+          if echo "$output" | grep -q "Warning"; then
+            echo "$output"
+            exit 1
+          fi
+
+      - name: Check compatibility with 0.6.2
+        if: always()
+        run: |
+          output=$(forge build --skip test --use solc:0.6.2)
+
+          if echo "$output" | grep -q "Warning"; then
+            echo "$output"
+            exit 1
+          fi
+
+      # via-ir compilation time checks.
+      - name: Measure compilation time of Test with 0.8.17 --via-ir
+        if: always()
+        run: forge build --skip test --contracts test/compilation/CompilationTest.sol --use solc:0.8.17 --via-ir
+
+      - name: Measure compilation time of TestBase with 0.8.17 --via-ir
+        if: always()
+        run: forge build --skip test --contracts test/compilation/CompilationTestBase.sol --use solc:0.8.17 --via-ir
+
+      - name: Measure compilation time of Script with 0.8.17 --via-ir
+        if: always()
+        run: forge build --skip test --contracts test/compilation/CompilationScript.sol --use solc:0.8.17 --via-ir
+
+      - name: Measure compilation time of ScriptBase with 0.8.17 --via-ir
+        if: always()
+        run: forge build --skip test --contracts test/compilation/CompilationScriptBase.sol --use solc:0.8.17 --via-ir
+
+  test:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v3
+
+      - name: Install Foundry
+        uses: onbjerg/foundry-toolchain@v1
+        with:
+          version: nightly
+
+      - name: Print forge version
+        run: forge --version
+
+      - name: Run tests
+        run: forge test -vvv
+
+  fmt:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v3
+
+      - name: Install Foundry
+        uses: onbjerg/foundry-toolchain@v1
+        with:
+          version: nightly
+
+      - name: Print forge version
+        run: forge --version
+
+      - name: Check formatting
+        run: forge fmt --check

contracts/lib/forge-std/.github/workflows/sync.yml

@@ -0,0 +1,29 @@
+name: Sync Release Branch
+
+on:
+  release:
+    types:
+      - created
+
+jobs:
+  sync-release-branch:
+    runs-on: ubuntu-latest
+    if: startsWith(github.event.release.tag_name, 'v1')
+    steps:
+      - name: Check out the repo
+        uses: actions/checkout@v3
+        with:
+          fetch-depth: 0
+          ref: v1
+
+      - name: Configure Git
+        run: |
+          git config user.name github-actions[bot]
+          git config user.email 41898282+github-actions[bot]@users.noreply.github.com
+
+      - name: Sync Release Branch
+        run: |
+          git fetch --tags
+          git checkout v1
+          git reset --hard ${GITHUB_REF}
+          git push --force

contracts/lib/forge-std/.gitignore

@@ -0,0 +1,4 @@
+cache/
+out/
+.vscode
+.idea

contracts/lib/forge-std/.gitmodules

@@ -0,0 +1,3 @@
+[submodule "lib/ds-test"]
+	path = lib/ds-test
+	url = https://github.com/dapphub/ds-test