# PoolConfigurator Proxy

* \
  **Upgraded(address implementation)** Emitted whenever the proxy upgrades to a new implementation contract.

***

**🔹 Fallback**

* **fallback() payable** Forwards calls (using `delegatecall`) to the current implementation if no function in the proxy matches.

***

**🔹 Functions**

* **admin() → address** Returns the proxy’s admin address. ⚠️ Only callable by the admin (others are forwarded to implementation).
* **implementation() → address** Returns the current implementation address of the proxy. ⚠️ Only callable by the admin.
* **initialize(address \_logic, bytes \_data)** (payable) Sets the initial implementation (`_logic`) and optionally calls an initialization function using `_data`. Used at deployment time to bootstrap the proxied contract.
* **upgradeTo(address newImplementation)** Upgrades the proxy to a new implementation contract. Restricted to the admin.
* **upgradeToAndCall(address newImplementation, bytes data)** (payable) Upgrades the proxy to a new implementation and immediately calls a function on it (encoded in `data`). Useful for initializing state variables in the new logic.

```
[
    {
      "inputs": [
        {
          "internalType": "address",
          "name": "admin",
          "type": "address"
        }
      ],
      "stateMutability": "nonpayable",
      "type": "constructor"
    },
    {
      "anonymous": false,
      "inputs": [
        {
          "indexed": true,
          "internalType": "address",
          "name": "implementation",
          "type": "address"
        }
      ],
      "name": "Upgraded",
      "type": "event"
    },
    {
      "stateMutability": "payable",
      "type": "fallback"
    },
    {
      "inputs": [],
      "name": "admin",
      "outputs": [
        {
          "internalType": "address",
          "name": "",
          "type": "address"
        }
      ],
      "stateMutability": "nonpayable",
      "type": "function"
    },
    {
      "inputs": [],
      "name": "implementation",
      "outputs": [
        {
          "internalType": "address",
          "name": "",
          "type": "address"
        }
      ],
      "stateMutability": "nonpayable",
      "type": "function"
    },
    {
      "inputs": [
        {
          "internalType": "address",
          "name": "_logic",
          "type": "address"
        },
        {
          "internalType": "bytes",
          "name": "_data",
          "type": "bytes"
        }
      ],
      "name": "initialize",
      "outputs": [],
      "stateMutability": "payable",
      "type": "function"
    },
    {
      "inputs": [
        {
          "internalType": "address",
          "name": "newImplementation",
          "type": "address"
        }
      ],
      "name": "upgradeTo",
      "outputs": [],
      "stateMutability": "nonpayable",
      "type": "function"
    },
    {
      "inputs": [
        {
          "internalType": "address",
          "name": "newImplementation",
          "type": "address"
        },
        {
          "internalType": "bytes",
          "name": "data",
          "type": "bytes"
        }
      ],
      "name": "upgradeToAndCall",
      "outputs": [],
      "stateMutability": "payable",
      "type": "function"
    }
  ]

```


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