From c6ab380685098dbf3a0a6ee5fae137e816839c2d Mon Sep 17 00:00:00 2001 From: Greg Hysen Date: Sat, 22 Dec 2018 12:56:52 -0800 Subject: Ran prettier & linter --- .../contract-wrappers/src/contract_wrappers.ts | 2 +- .../src/contract_wrappers/dutch_auction_wrapper.ts | 135 +++++++++++---------- 2 files changed, 70 insertions(+), 67 deletions(-) (limited to 'packages/contract-wrappers/src') diff --git a/packages/contract-wrappers/src/contract_wrappers.ts b/packages/contract-wrappers/src/contract_wrappers.ts index 3728d58d3..4e594593e 100644 --- a/packages/contract-wrappers/src/contract_wrappers.ts +++ b/packages/contract-wrappers/src/contract_wrappers.ts @@ -12,6 +12,7 @@ import { Web3Wrapper } from '@0x/web3-wrapper'; import { Provider } from 'ethereum-types'; import * as _ from 'lodash'; +import { DutchAuctionWrapper } from './contract_wrappers/dutch_auction_wrapper'; import { ERC20ProxyWrapper } from './contract_wrappers/erc20_proxy_wrapper'; import { ERC20TokenWrapper } from './contract_wrappers/erc20_token_wrapper'; import { ERC721ProxyWrapper } from './contract_wrappers/erc721_proxy_wrapper'; @@ -20,7 +21,6 @@ import { EtherTokenWrapper } from './contract_wrappers/ether_token_wrapper'; import { ExchangeWrapper } from './contract_wrappers/exchange_wrapper'; import { ForwarderWrapper } from './contract_wrappers/forwarder_wrapper'; import { OrderValidatorWrapper } from './contract_wrappers/order_validator_wrapper'; -import { DutchAuctionWrapper } from './contract_wrappers/dutch_auction_wrapper'; import { ContractWrappersConfigSchema } from './schemas/contract_wrappers_config_schema'; import { ContractWrappersConfig } from './types'; import { assert } from './utils/assert'; diff --git a/packages/contract-wrappers/src/contract_wrappers/dutch_auction_wrapper.ts b/packages/contract-wrappers/src/contract_wrappers/dutch_auction_wrapper.ts index f243d55d9..cb0c10187 100644 --- a/packages/contract-wrappers/src/contract_wrappers/dutch_auction_wrapper.ts +++ b/packages/contract-wrappers/src/contract_wrappers/dutch_auction_wrapper.ts @@ -1,28 +1,84 @@ import { DutchAuctionContract } from '@0x/abi-gen-wrappers'; import { DutchAuction } from '@0x/contract-artifacts'; -import { _getDefaultContractAddresses } from '../utils/contract_addresses'; +import { schemas } from '@0x/json-schemas'; +import { assetDataUtils } from '@0x/order-utils'; import { DutchAuctionDetails, SignedOrder } from '@0x/types'; -import { ContractAbi } from 'ethereum-types'; -import { Web3Wrapper } from '@0x/web3-wrapper'; import { BigNumber } from '@0x/utils'; +import { Web3Wrapper } from '@0x/web3-wrapper'; +import { ContractAbi } from 'ethereum-types'; +import * as ethAbi from 'ethereumjs-abi'; +import * as ethUtil from 'ethereumjs-util'; import * as _ from 'lodash'; -import ethAbi = require('ethereumjs-abi'); -import { schemas } from '@0x/json-schemas'; -import { assert } from '../utils/assert'; -import ethUtil = require('ethereumjs-util'); import { orderTxOptsSchema } from '../schemas/order_tx_opts_schema'; import { txOptsSchema } from '../schemas/tx_opts_schema'; -import { OrderTransactionOpts } from '../types'; -import { ContractWrapper } from './contract_wrapper'; -import { DutchAuctionWrapperError, DutchAuctionData } from '../types'; +import { DutchAuctionData, DutchAuctionWrapperError, OrderTransactionOpts } from '../types'; +import { assert } from '../utils/assert'; +import { _getDefaultContractAddresses } from '../utils/contract_addresses'; -import { assetDataUtils } from '@0x/order-utils'; +import { ContractWrapper } from './contract_wrapper'; export class DutchAuctionWrapper extends ContractWrapper { public abi: ContractAbi = DutchAuction.compilerOutput.abi; public address: string; private _dutchAuctionContractIfExists?: DutchAuctionContract; + /** + * Dutch auction details are encoded with the asset data for a 0x order. This function produces a hex + * encoded assetData string, containing information both about the asset being traded and the + * dutch auction; which is usable in the makerAssetData or takerAssetData fields in a 0x order. + * @param assetData Hex encoded assetData string for the asset being auctioned. + * @param beginTimeSeconds Begin time of the dutch auction. + * @param beginAmount Starting amount being sold in the dutch auction. + * @return The hex encoded assetData string. + */ + public static encodeDutchAuctionAssetData( + assetData: string, + beginTimeSeconds: BigNumber, + beginAmount: BigNumber, + ): string { + const assetDataBuffer = ethUtil.toBuffer(assetData); + const abiEncodedAuctionData = (ethAbi as any).rawEncode( + ['uint256', 'uint256'], + [beginTimeSeconds.toString(), beginAmount.toString()], + ); + const abiEncodedAuctionDataBuffer = ethUtil.toBuffer(abiEncodedAuctionData); + const dutchAuctionDataBuffer = Buffer.concat([assetDataBuffer, abiEncodedAuctionDataBuffer]); + const dutchAuctionData = ethUtil.bufferToHex(dutchAuctionDataBuffer); + return dutchAuctionData; + } + /** + * Dutch auction details are encoded with the asset data for a 0x order. This function produces a hex + * encoded assetData string, containing information both about the asset being traded and the + * dutch auction; which is usable in the makerAssetData or takerAssetData fields in a 0x order. + * @param dutchAuctionData Hex encoded assetData string for the asset being auctioned. + * @return An object containing the auction asset, auction begin time and auction begin amount. + */ + public static decodeDutchAuctionData(dutchAuctionData: string): DutchAuctionData { + const dutchAuctionDataBuffer = ethUtil.toBuffer(dutchAuctionData); + // Decode asset data + const dutchAuctionDataLengthInBytes = 64; + const assetDataBuffer = dutchAuctionDataBuffer.slice( + 0, + dutchAuctionDataBuffer.byteLength - dutchAuctionDataLengthInBytes, + ); + const assetDataHex = ethUtil.bufferToHex(assetDataBuffer); + const assetData = assetDataUtils.decodeAssetDataOrThrow(assetDataHex); + // Decode auction details + const dutchAuctionDetailsBuffer = dutchAuctionDataBuffer.slice( + dutchAuctionDataBuffer.byteLength - dutchAuctionDataLengthInBytes, + ); + const [beginTimeSecondsAsBN, beginAmountAsBN] = ethAbi.rawDecode( + ['uint256', 'uint256'], + dutchAuctionDetailsBuffer, + ); + const beginTimeSeconds = new BigNumber(`0x${beginTimeSecondsAsBN.toString()}`); + const beginAmount = new BigNumber(`0x${beginAmountAsBN.toString()}`); + return { + assetData, + beginTimeSeconds, + beginAmount, + }; + } /** * Instantiate DutchAuctionWrapper * @param web3Wrapper Web3Wrapper instance to use. @@ -30,11 +86,9 @@ export class DutchAuctionWrapper extends ContractWrapper { * @param address The address of the Dutch Auction contract. If undefined, will * default to the known address corresponding to the networkId. */ - constructor(web3Wrapper: Web3Wrapper, networkId: number, address?: string) { + public constructor(web3Wrapper: Web3Wrapper, networkId: number, address?: string) { super(web3Wrapper, networkId); - this.address = _.isUndefined(address) - ? _getDefaultContractAddresses(networkId).dutchAuction - : address; + this.address = _.isUndefined(address) ? _getDefaultContractAddresses(networkId).dutchAuction : address; } /** * Matches the buy and sell orders at an amount given the following: the current block time, the auction @@ -124,55 +178,4 @@ export class DutchAuctionWrapper extends ContractWrapper { this._dutchAuctionContractIfExists = contractInstance; return this._dutchAuctionContractIfExists; } - /** - * Dutch auction details are encoded with the asset data for a 0x order. This function produces a hex - * encoded assetData string, containing information both about the asset being traded and the - * dutch auction; which is usable in the makerAssetData or takerAssetData fields in a 0x order. - * @param assetData Hex encoded assetData string for the asset being auctioned. - * @param beginTimeSeconds Begin time of the dutch auction. - * @param beginAmount Starting amount being sold in the dutch auction. - * @return The hex encoded assetData string. - */ - public static encodeDutchAuctionAssetData( - assetData: string, - beginTimeSeconds: BigNumber, - beginAmount: BigNumber, - ): string { - const assetDataBuffer = ethUtil.toBuffer(assetData); - const abiEncodedAuctionData = (ethAbi as any).rawEncode( - ['uint256', 'uint256'], - [beginTimeSeconds.toString(), beginAmount.toString()], - ); - const abiEncodedAuctionDataBuffer = ethUtil.toBuffer(abiEncodedAuctionData); - const dutchAuctionDataBuffer = Buffer.concat([assetDataBuffer, abiEncodedAuctionDataBuffer]); - const dutchAuctionData = ethUtil.bufferToHex(dutchAuctionDataBuffer); - return dutchAuctionData; - } - /** - * Dutch auction details are encoded with the asset data for a 0x order. This function produces a hex - * encoded assetData string, containing information both about the asset being traded and the - * dutch auction; which is usable in the makerAssetData or takerAssetData fields in a 0x order. - * @param dutchAuctionData Hex encoded assetData string for the asset being auctioned. - * @return An object containing the auction asset, auction begin time and auction begin amount. - */ - public static decodeDutchAuctionData(dutchAuctionData: string): DutchAuctionData { - const dutchAuctionDataBuffer = ethUtil.toBuffer(dutchAuctionData); - // Decode asset data - const assetDataBuffer = dutchAuctionDataBuffer.slice(0, dutchAuctionDataBuffer.byteLength - 64); - const assetDataHex = ethUtil.bufferToHex(assetDataBuffer); - const assetData = assetDataUtils.decodeAssetDataOrThrow(assetDataHex); - // Decode auction details - const dutchAuctionDetailsBuffer = dutchAuctionDataBuffer.slice(dutchAuctionDataBuffer.byteLength - 64); - const [beginTimeSecondsAsBN, beginAmountAsBN] = ethAbi.rawDecode( - ['uint256', 'uint256'], - dutchAuctionDetailsBuffer, - ); - const beginTimeSeconds = new BigNumber(`0x${beginTimeSecondsAsBN.toString()}`); - const beginAmount = new BigNumber(`0x${beginAmountAsBN.toString()}`); - return { - assetData, - beginTimeSeconds, - beginAmount, - }; - } } -- cgit v1.2.3