@layerzerolabs/oapp-evm-upgradeable/artifacts/Initializable.sol/Initializable.json

LayerZero Labs reference EVM OmniChain Application (OApp) implementation

{"abi":[{"type":"event","name":"Initialized","inputs":[{"name":"version","type":"uint64","indexed":false,"internalType":"uint64"}],"anonymous":false},{"type":"error","name":"InvalidInitialization","inputs":[]},{"type":"error","name":"NotInitializing","inputs":[]}],"bytecode":{"object":"0x","sourceMap":"","linkReferences":{}},"deployedBytecode":{"object":"0x","sourceMap":"","linkReferences":{}},"methodIdentifiers":{},"rawMetadata":"{\"compiler\":{\"version\":\"0.8.22+commit.4fc1097e\"},\"language\":\"Solidity\",\"output\":{\"abi\":[{\"inputs\":[],\"name\":\"InvalidInitialization\",\"type\":\"error\"},{\"inputs\":[],\"name\":\"NotInitializing\",\"type\":\"error\"},{\"anonymous\":false,\"inputs\":[{\"indexed\":false,\"internalType\":\"uint64\",\"name\":\"version\",\"type\":\"uint64\"}],\"name\":\"Initialized\",\"type\":\"event\"}],\"devdoc\":{\"custom:oz-upgrades-unsafe-allow\":\"constructor constructor() {     _disableInitializers(); } ``` ====\",\"details\":\"This is a base contract to aid in writing upgradeable contracts, or any kind of contract that will be deployed behind a proxy. Since proxied contracts do not make use of a constructor, it's common to move constructor logic to an external initializer function, usually called `initialize`. It then becomes necessary to protect this initializer function so it can only be called once. The {initializer} modifier provided by this contract will have this effect. The initialization functions use a version number. Once a version number is used, it is consumed and cannot be reused. This mechanism prevents re-execution of each \\\"step\\\" but allows the creation of new initialization steps in case an upgrade adds a module that needs to be initialized. For example: [.hljs-theme-light.nopadding] ```solidity contract MyToken is ERC20Upgradeable {     function initialize() initializer public {         __ERC20_init(\\\"MyToken\\\", \\\"MTK\\\");     } } contract MyTokenV2 is MyToken, ERC20PermitUpgradeable {     function initializeV2() reinitializer(2) public {         __ERC20Permit_init(\\\"MyToken\\\");     } } ``` TIP: To avoid leaving the proxy in an uninitialized state, the initializer function should be called as early as possible by providing the encoded function call as the `_data` argument to {ERC1967Proxy-constructor}. CAUTION: When used with inheritance, manual care must be taken to not invoke a parent initializer twice, or to ensure that all initializers are idempotent. This is not verified automatically as constructors are by Solidity. [CAUTION] ==== Avoid leaving a contract uninitialized. An uninitialized contract can be taken over by an attacker. This applies to both a proxy and its implementation contract, which may impact the proxy. To prevent the implementation contract from being used, you should invoke the {_disableInitializers} function in the constructor to automatically lock it when it is deployed: [.hljs-theme-light.nopadding] ```\",\"errors\":{\"InvalidInitialization()\":[{\"details\":\"The contract is already initialized.\"}],\"NotInitializing()\":[{\"details\":\"The contract is not initializing.\"}]},\"events\":{\"Initialized(uint64)\":{\"details\":\"Triggered when the contract has been initialized or reinitialized.\"}},\"kind\":\"dev\",\"methods\":{},\"version\":1},\"userdoc\":{\"kind\":\"user\",\"methods\":{},\"version\":1}},\"settings\":{\"compilationTarget\":{\"node_modules/@openzeppelin/contracts-upgradeable/proxy/utils/Initializable.sol\":\"Initializable\"},\"evmVersion\":\"shanghai\",\"libraries\":{},\"metadata\":{\"bytecodeHash\":\"ipfs\"},\"optimizer\":{\"enabled\":true,\"runs\":200},\"remappings\":[\":@layerzerolabs/=node_modules/@layerzerolabs/\",\":@openzeppelin/=node_modules/@openzeppelin/\",\":ds-test/=node_modules/@layerzerolabs/toolbox-foundry/src/ds-test/src/\",\":forge-std/=node_modules/@layerzerolabs/toolbox-foundry/src/forge-std/src/\",\":solidity-bytes-utils/contracts/=node_modules/@layerzerolabs/toolbox-foundry/lib/solidity-bytes-utils/\"]},\"sources\":{\"node_modules/@openzeppelin/contracts-upgradeable/proxy/utils/Initializable.sol\":{\"keccak256\":\"0x631188737069917d2f909d29ce62c4d48611d326686ba6683e26b72a23bfac0b\",\"license\":\"MIT\",\"urls\":[\"bzz-raw://7a61054ae84cd6c4d04c0c4450ba1d6de41e27e0a2c4f1bcdf58f796b401c609\",\"dweb:/ipfs/QmUvtdp7X1mRVyC3CsHrtPbgoqWaXHp3S1ZR24tpAQYJWM\"]}},\"version\":1}","metadata":{"compiler":{"version":"0.8.22+commit.4fc1097e"},"language":"Solidity","output":{"abi":[{"inputs":[],"type":"error","name":"InvalidInitialization"},{"inputs":[],"type":"error","name":"NotInitializing"},{"inputs":[{"internalType":"uint64","name":"version","type":"uint64","indexed":false}],"type":"event","name":"Initialized","anonymous":false}],"devdoc":{"kind":"dev","methods":{},"version":1},"userdoc":{"kind":"user","methods":{},"version":1}},"settings":{"remappings":["@layerzerolabs/=node_modules/@layerzerolabs/","@openzeppelin/=node_modules/@openzeppelin/","ds-test/=node_modules/@layerzerolabs/toolbox-foundry/src/ds-test/src/","forge-std/=node_modules/@layerzerolabs/toolbox-foundry/src/forge-std/src/","solidity-bytes-utils/contracts/=node_modules/@layerzerolabs/toolbox-foundry/lib/solidity-bytes-utils/"],"optimizer":{"enabled":true,"runs":200},"metadata":{"bytecodeHash":"ipfs"},"compilationTarget":{"node_modules/@openzeppelin/contracts-upgradeable/proxy/utils/Initializable.sol":"Initializable"},"evmVersion":"shanghai","libraries":{}},"sources":{"node_modules/@openzeppelin/contracts-upgradeable/proxy/utils/Initializable.sol":{"keccak256":"0x631188737069917d2f909d29ce62c4d48611d326686ba6683e26b72a23bfac0b","urls":["bzz-raw://7a61054ae84cd6c4d04c0c4450ba1d6de41e27e0a2c4f1bcdf58f796b401c609","dweb:/ipfs/QmUvtdp7X1mRVyC3CsHrtPbgoqWaXHp3S1ZR24tpAQYJWM"],"license":"MIT"}},"version":1},"id":106}