ox/_esm/core/AbiConstructor.js

Ethereum Standard Library

import * as abitype from 'abitype';
import * as AbiItem from './AbiItem.js';
import * as AbiParameters from './AbiParameters.js';
import * as Hex from './Hex.js';
/** @internal */
export function decode(abiConstructor, options) {
    const { bytecode } = options;
    if (abiConstructor.inputs.length === 0)
        return undefined;
    const data = options.data.replace(bytecode, '0x');
    return AbiParameters.decode(abiConstructor.inputs, data);
}
/**
 * ABI-encodes the provided constructor input (`inputs`).
 *
 * @example
 * ```ts twoslash
 * import { AbiConstructor } from 'ox'
 *
 * const constructor = AbiConstructor.from('constructor(address, uint256)')
 *
 * const data = AbiConstructor.encode(constructor, {
 *   bytecode: '0x...',
 *   args: ['0xd8da6bf26964af9d7eed9e03e53415d37aa96045', 123n],
 * })
 * ```
 *
 * @example
 * ### End-to-end
 *
 * Below is an end-to-end example of using `AbiConstructor.encode` to encode the constructor of a contract and deploy it.
 *
 * ```ts twoslash
 * import 'ox/window'
 * import { AbiConstructor, Hex } from 'ox'
 *
 * // 1. Instantiate the ABI Constructor.
 * const constructor = AbiConstructor.from(
 *   'constructor(address owner, uint256 amount)',
 * )
 *
 * // 2. Encode the ABI Constructor.
 * const data = AbiConstructor.encode(constructor, {
 *   bytecode: '0x...',
 *   args: ['0xd8da6bf26964af9d7eed9e03e53415d37aa96045', 123n],
 * })
 *
 * // 3. Deploy the contract.
 * const hash = await window.ethereum!.request({
 *   method: 'eth_sendTransaction',
 *   params: [{ data }],
 * })
 * ```
 *
 * :::note
 *
 * For simplicity, the above example uses `window.ethereum.request`, but you can use any
 * type of JSON-RPC interface.
 *
 * :::
 *
 * @param abiConstructor - The ABI Constructor to encode.
 * @param options - Encoding options.
 * @returns The encoded constructor.
 */
export function encode(abiConstructor, options) {
    const { bytecode, args } = options;
    return Hex.concat(bytecode, abiConstructor.inputs?.length && args?.length
        ? AbiParameters.encode(abiConstructor.inputs, args)
        : '0x');
}
/** @internal */
export function format(abiConstructor) {
    return abitype.formatAbiItem(abiConstructor);
}
/** @internal */
export function from(abiConstructor) {
    return AbiItem.from(abiConstructor);
}
/** @internal */
export function fromAbi(abi) {
    const item = abi.find((item) => item.type === 'constructor');
    if (!item)
        throw new AbiItem.NotFoundError({ name: 'constructor' });
    return item;
}
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