@openzeppelin/hardhat-upgrades/dist/engine/initializer-data.js

[](https://docs.openzeppelin.com/upgrades-plugins/hardhat-upgrades) [](https://www.npmjs.org/package/@openzeppelin/h

import { UpgradesError } from '@openzeppelin/upgrades-core';
/**
 * Encodes the initializer call for a proxy deployment, using the binding's own ABI encoder.
 * Mirrors the resolution rules of the ethers-based implementation: an explicit `false` omits
 * the call, a missing initializer with no arguments is allowed to be omitted, and otherwise the
 * function (matched by name or signature) must exist.
 */
export function getInitializerData(binding, abi, args, initializer) {
    if (initializer === false) {
        return '0x';
    }
    const allowNoInitialization = initializer === undefined && args.length === 0;
    initializer = initializer ?? 'initialize';
    if (!binding.hasFunction(abi, initializer)) {
        if (allowNoInitialization) {
            return '0x';
        }
        throw new UpgradesError(`The contract has no initializer function matching the name or signature: ${initializer}`, () => `Ensure that the initializer function exists, specify an existing function with the 'initializer' option, or set the 'initializer' option to false to omit the initializer call.`);
    }
    return binding.encodeFunctionData(abi, initializer, args);
}
/**
 * Encodes the optional `call` for `upgradeProxy`, or returns `undefined` when there is none.
 */
export function encodeCall(binding, abi, call) {
    if (!call) {
        return undefined;
    }
    if (typeof call === 'string') {
        call = { fn: call };
    }
    return binding.encodeFunctionData(abi, call.fn, call.args ?? []);
}
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