import { Interface } from "../abi/index.js"; import { getCreateAddress } from "../address/index.js"; import { concat, defineProperties, getBytes, hexlify, assert, assertArgument } from "../utils/index.js"; import { BaseContract, copyOverrides, resolveArgs } from "./contract.js"; // A = Arguments to the constructor // I = Interface of deployed contracts /** * A **ContractFactory** is used to deploy a Contract to the blockchain. */ export class ContractFactory { /** * The Contract Interface. */ interface; /** * The Contract deployment bytecode. Often called the initcode. */ bytecode; /** * The ContractRunner to deploy the Contract as. */ runner; /** * Create a new **ContractFactory** with %%abi%% and %%bytecode%%, * optionally connected to %%runner%%. * * The %%bytecode%% may be the ``bytecode`` property within the * standard Solidity JSON output. */ constructor(abi, bytecode, runner) { const iface = Interface.from(abi); // Dereference Solidity bytecode objects and allow a missing `0x`-prefix if (bytecode instanceof Uint8Array) { bytecode = hexlify(getBytes(bytecode)); } else { if (typeof (bytecode) === "object") { bytecode = bytecode.object; } if (!bytecode.startsWith("0x")) { bytecode = "0x" + bytecode; } bytecode = hexlify(getBytes(bytecode)); } defineProperties(this, { bytecode, interface: iface, runner: (runner || null) }); } attach(target) { return new BaseContract(target, this.interface, this.runner); } /** * Resolves to the transaction to deploy the contract, passing %%args%% * into the constructor. */ async getDeployTransaction(...args) { let overrides = {}; const fragment = this.interface.deploy; if (fragment.inputs.length + 1 === args.length) { overrides = await copyOverrides(args.pop()); } if (fragment.inputs.length !== args.length) { throw new Error("incorrect number of arguments to constructor"); } const resolvedArgs = await resolveArgs(this.runner, fragment.inputs, args); const data = concat([this.bytecode, this.interface.encodeDeploy(resolvedArgs)]); return Object.assign({}, overrides, { data }); } /** * Resolves to the Contract deployed by passing %%args%% into the * constructor. * * This will resovle to the Contract before it has been deployed to the * network, so the [[BaseContract-waitForDeployment]] should be used before * sending any transactions to it. */ async deploy(...args) { const tx = await this.getDeployTransaction(...args); assert(this.runner && typeof (this.runner.sendTransaction) === "function", "factory runner does not support sending transactions", "UNSUPPORTED_OPERATION", { operation: "sendTransaction" }); const sentTx = await this.runner.sendTransaction(tx); const address = getCreateAddress(sentTx); return new BaseContract(address, this.interface, this.runner, sentTx); } /** * Return a new **ContractFactory** with the same ABI and bytecode, * but connected to %%runner%%. */ connect(runner) { return new ContractFactory(this.interface, this.bytecode, runner); } /** * Create a new **ContractFactory** from the standard Solidity JSON output. */ static fromSolidity(output, runner) { assertArgument(output != null, "bad compiler output", "output", output); if (typeof (output) === "string") { output = JSON.parse(output); } const abi = output.abi; let bytecode = ""; if (output.bytecode) { bytecode = output.bytecode; } else if (output.evm && output.evm.bytecode) { bytecode = output.evm.bytecode; } return new this(abi, bytecode, runner); } } //# sourceMappingURL=factory.js.map