112 lines
4.1 KiB
JavaScript
112 lines
4.1 KiB
JavaScript
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
|