feat: examples/oft-alt

Signed-off-by: Shankar <[email protected]>

examples/oft-alt/.env.example

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+#   .-.-.   .-.-.   .-.-.   .-.-.   .-.-.   .-.-.   .-.-.   .-.-
+#  / / \ \ / / \ \ / / \ \ / / \ \ / / \ \ / / \ \ / / \ \ / / \
+# `-'   `-`-'   `-`-'   `-`-'   `-`-'   `-`-'   `-`-'   `-`-'
+#
+#               Example environment configuration
+#
+#   .-.-.   .-.-.   .-.-.   .-.-.   .-.-.   .-.-.   .-.-.   .-.-
+#  / / \ \ / / \ \ / / \ \ / / \ \ / / \ \ / / \ \ / / \ \ / / \
+# `-'   `-`-'   `-`-'   `-`-'   `-`-'   `-`-'   `-`-'   `-`-'
+
+# By default, the examples support both mnemonic-based and private key-based authentication
+# 
+# You don't need to set both of these values, just pick the one that you prefer and set that one
+MNEMONIC=
+PRIVATE_KEY=

examples/oft-alt/.eslintignore

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+artifacts
+cache
+dist
+node_modules
+out
+*.log
+*.sol
+*.yaml
+*.lock
+package-lock.json

examples/oft-alt/.eslintrc.js

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+require('@rushstack/eslint-patch/modern-module-resolution');
+
+module.exports = {
+    extends: ['@layerzerolabs/eslint-config-next/recommended'],
+    rules: {
+        // @layerzerolabs/eslint-config-next defines rules for turborepo-based projects
+        // that are not relevant for this particular project
+        'turbo/no-undeclared-env-vars': 'off',
+    },
+};

examples/oft-alt/.gitignore

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+node_modules
+.env
+coverage
+coverage.json
+typechain
+typechain-types
+
+# Hardhat files
+cache
+artifacts
+
+
+# LayerZero specific files
+.layerzero
+
+# foundry test compilation files
+out
+
+# pnpm
+pnpm-error.log
+
+# Editor and OS files
+.DS_Store
+.idea

examples/oft-alt/.nvmrc

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+v18.18.0

examples/oft-alt/.prettierignore

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+artifacts/
+cache/
+dist/
+node_modules/
+out/
+*.log
+*ignore
+*.yaml
+*.lock
+package-lock.json

examples/oft-alt/.prettierrc.js

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+module.exports = {
+    ...require('@layerzerolabs/prettier-config-next'),
+};

examples/oft-alt/contracts/MyOFTAdapterAlt.sol

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+// SPDX-License-Identifier: UNLICENSED
+pragma solidity ^0.8.22;
+
+import { Ownable } from "@openzeppelin/contracts/access/Ownable.sol";
+import { OFTAdapterAlt } from "@layerzerolabs/oft-alt-evm/contracts/OFTAdapterAlt.sol";
+
+contract MyOFTAdapterAlt is OFTAdapterAlt {
+    constructor(
+        address _address,
+        address _lzEndpoint,
+        address _delegate
+    ) OFTAdapterAlt(_address, _lzEndpoint, _delegate) Ownable(_delegate) {}
+}

examples/oft-alt/contracts/MyOFTAlt.sol

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+// SPDX-License-Identifier: UNLICENSED
+pragma solidity ^0.8.22;
+
+import { Ownable } from "@openzeppelin/contracts/access/Ownable.sol";
+import { OFTAlt } from "@layerzerolabs/oft-alt-evm/contracts/OFTAlt.sol";
+
+contract MyOFTAlt is OFTAlt {
+    constructor(
+        string memory _name,
+        string memory _symbol,
+        address _lzEndpoint,
+        address _delegate
+    ) OFTAlt(_name, _symbol, _lzEndpoint, _delegate) Ownable(_delegate) {}
+}

examples/oft-alt/contracts/mocks/MyOFTAltMock.sol

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+// SPDX-License-Identifier: UNLICENSED
+pragma solidity ^0.8.22;
+
+import { MyOFTAlt } from "../MyOFTAlt.sol";
+
+// @dev WARNING: This is for testing purposes only
+contract MyOFTAltMock is MyOFTAlt {
+    constructor(
+        string memory _name,
+        string memory _symbol,
+        address _lzEndpoint,
+        address _delegate
+    ) MyOFTAlt(_name, _symbol, _lzEndpoint, _delegate) {}
+
+    function mint(address _to, uint256 _amount) public {
+        _mint(_to, _amount);
+    }
+}

examples/oft-alt/deploy/MyOFTAlt.ts

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+import assert from 'assert'
+
+import { type DeployFunction } from 'hardhat-deploy/types'
+
+const contractName = 'MyOFTAlt'
+
+const deploy: DeployFunction = async (hre) => {
+    const { getNamedAccounts, deployments } = hre
+
+    const { deploy } = deployments
+    const { deployer } = await getNamedAccounts()
+
+    assert(deployer, 'Missing named deployer account')
+
+    console.log(`Network: ${hre.network.name}`)
+    console.log(`Deployer: ${deployer}`)
+
+    // This is an external deployment pulled in from @layerzerolabs/lz-evm-sdk-v2
+    //
+    // @layerzerolabs/toolbox-hardhat takes care of plugging in the external deployments
+    // from @layerzerolabs packages based on the configuration in your hardhat config
+    //
+    // For this to work correctly, your network config must define an eid property
+    // set to `EndpointId` as defined in @layerzerolabs/lz-definitions
+    //
+    // For example:
+    //
+    // networks: {
+    //   fuji: {
+    //     ...
+    //     eid: EndpointId.AVALANCHE_V2_TESTNET
+    //   }
+    // }
+    const endpointV2Deployment = await hre.deployments.get('EndpointV2')
+
+    const { address } = await deploy(contractName, {
+        from: deployer,
+        args: [
+            'MyOFTAlt', // name
+            'MOFTAlt', // symbol
+            endpointV2Deployment.address, // LayerZero's EndpointV2 address
+            deployer, // owner
+        ],
+        log: true,
+        skipIfAlreadyDeployed: false,
+    })
+
+    console.log(`Deployed contract: ${contractName}, network: ${hre.network.name}, address: ${address}`)
+}
+
+deploy.tags = [contractName]
+
+export default deploy

examples/oft-alt/foundry.toml

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+[profile.default]
+solc-version = '0.8.22'
+src = 'contracts'
+out = 'out'
+test = 'test/foundry'
+cache_path = 'cache/foundry'
+verbosity = 3
+libs = [
+    # We provide a set of useful contract utilities
+    # in the lib directory of @layerzerolabs/toolbox-foundry:
+    # 
+    # - forge-std
+    # - ds-test
+    # - solidity-bytes-utils
+    'node_modules/@layerzerolabs/toolbox-foundry/lib',
+    'node_modules',
+]
+
+remappings = [
+    # Due to a misconfiguration of solidity-bytes-utils, an outdated version
+    # of forge-std is being dragged in
+    # 
+    # To remedy this, we'll remap the ds-test and forge-std imports to our own versions
+    'ds-test/=node_modules/@layerzerolabs/toolbox-foundry/lib/ds-test',
+    'forge-std/=node_modules/@layerzerolabs/toolbox-foundry/lib/forge-std',
+    '@layerzerolabs/=node_modules/@layerzerolabs/',
+    '@openzeppelin/=node_modules/@openzeppelin/',
+]
+
+[fuzz]
+runs = 1000

examples/oft-alt/hardhat.config.ts

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+// Get the environment configuration from .env file
+//
+// To make use of automatic environment setup:
+// - Duplicate .env.example file and name it .env
+// - Fill in the environment variables
+import 'dotenv/config'
+
+import 'hardhat-deploy'
+import 'hardhat-contract-sizer'
+import '@nomiclabs/hardhat-ethers'
+import '@layerzerolabs/toolbox-hardhat'
+import { HardhatUserConfig, HttpNetworkAccountsUserConfig } from 'hardhat/types'
+
+import { EndpointId } from '@layerzerolabs/lz-definitions'
+
+// Set your preferred authentication method
+//
+// If you prefer using a mnemonic, set a MNEMONIC environment variable
+// to a valid mnemonic
+const MNEMONIC = process.env.MNEMONIC
+
+// If you prefer to be authenticated using a private key, set a PRIVATE_KEY environment variable
+const PRIVATE_KEY = process.env.PRIVATE_KEY
+
+const accounts: HttpNetworkAccountsUserConfig | undefined = MNEMONIC
+    ? { mnemonic: MNEMONIC }
+    : PRIVATE_KEY
+      ? [PRIVATE_KEY]
+      : undefined
+
+if (accounts == null) {
+    console.warn(
+        'Could not find MNEMONIC or PRIVATE_KEY environment variables. It will not be possible to execute transactions in your example.'
+    )
+}
+
+const config: HardhatUserConfig = {
+    paths: {
+        cache: 'cache/hardhat',
+    },
+    solidity: {
+        compilers: [
+            {
+                version: '0.8.22',
+                settings: {
+                    optimizer: {
+                        enabled: true,
+                        runs: 200,
+                    },
+                },
+            },
+        ],
+    },
+    networks: {
+        'sepolia-testnet': {
+            eid: EndpointId.SEPOLIA_V2_TESTNET,
+            url: process.env.RPC_URL_SEPOLIA || 'https://rpc.sepolia.org/',
+            accounts,
+        },
+        'avalanche-testnet': {
+            eid: EndpointId.AVALANCHE_V2_TESTNET,
+            url: process.env.RPC_URL_FUJI || 'https://rpc.ankr.com/avalanche_fuji',
+            accounts,
+        },
+        'amoy-testnet': {
+            eid: EndpointId.AMOY_V2_TESTNET,
+            url: process.env.RPC_URL_AMOY || 'https://polygon-amoy-bor-rpc.publicnode.com',
+            accounts,
+        },
+        hardhat: {
+            // Need this for testing because TestHelperOz5.sol is exceeding the compiled contract size limit
+            allowUnlimitedContractSize: true,
+        },
+    },
+    namedAccounts: {
+        deployer: {
+            default: 0, // wallet address of index[0], of the mnemonic in .env
+        },
+    },
+}
+
+export default config

examples/oft-alt/layerzero.config.ts

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+import { EndpointId } from '@layerzerolabs/lz-definitions'
+
+import type { OAppOmniGraphHardhat, OmniPointHardhat } from '@layerzerolabs/toolbox-hardhat'
+
+const sepoliaContract: OmniPointHardhat = {
+    eid: EndpointId.SEPOLIA_V2_TESTNET,
+    contractName: 'MyOFT',
+}
+
+const fujiContract: OmniPointHardhat = {
+    eid: EndpointId.AVALANCHE_V2_TESTNET,
+    contractName: 'MyOFT',
+}
+
+const amoyContract: OmniPointHardhat = {
+    eid: EndpointId.AMOY_V2_TESTNET,
+    contractName: 'MyOFT',
+}
+
+const config: OAppOmniGraphHardhat = {
+    contracts: [
+        {
+            contract: fujiContract,
+        },
+        {
+            contract: sepoliaContract,
+        },
+        {
+            contract: amoyContract,
+        },
+    ],
+    connections: [
+        {
+            from: fujiContract,
+            to: sepoliaContract,
+        },
+        {
+            from: fujiContract,
+            to: amoyContract,
+        },
+        {
+            from: sepoliaContract,
+            to: fujiContract,
+        },
+        {
+            from: sepoliaContract,
+            to: amoyContract,
+        },
+        {
+            from: amoyContract,
+            to: sepoliaContract,
+        },
+        {
+            from: amoyContract,
+            to: fujiContract,
+        },
+    ],
+}
+
+export default config