diff options
Diffstat (limited to 'packages/contract-wrappers/src/contract_wrappers/exchange_wrapper.ts')
| -rw-r--r-- | packages/contract-wrappers/src/contract_wrappers/exchange_wrapper.ts | 79 |
1 files changed, 77 insertions, 2 deletions
diff --git a/packages/contract-wrappers/src/contract_wrappers/exchange_wrapper.ts b/packages/contract-wrappers/src/contract_wrappers/exchange_wrapper.ts index cfef0f107..dc9ffcbf7 100644 --- a/packages/contract-wrappers/src/contract_wrappers/exchange_wrapper.ts +++ b/packages/contract-wrappers/src/contract_wrappers/exchange_wrapper.ts @@ -1,12 +1,19 @@ import { schemas } from '@0xproject/json-schemas'; -import { assetDataUtils } from '@0xproject/order-utils'; +import { + assetDataUtils, + BalanceAndProxyAllowanceLazyStore, + ExchangeTransferSimulator, + OrderValidationUtils, +} from '@0xproject/order-utils'; import { AssetProxyId, Order, SignedOrder } from '@0xproject/types'; import { BigNumber } from '@0xproject/utils'; import { Web3Wrapper } from '@0xproject/web3-wrapper'; -import { ContractAbi, LogWithDecodedArgs } from 'ethereum-types'; +import { BlockParamLiteral, ContractAbi, LogWithDecodedArgs } from 'ethereum-types'; import * as _ from 'lodash'; import { artifacts } from '../artifacts'; +import { AssetBalanceAndProxyAllowanceFetcher } from '../fetchers/asset_balance_and_proxy_allowance_fetcher'; +import { OrderFilledCancelledFetcher } from '../fetchers/order_filled_cancelled_fetcher'; import { methodOptsSchema } from '../schemas/method_opts_schema'; import { orderTxOptsSchema } from '../schemas/order_tx_opts_schema'; import { txOptsSchema } from '../schemas/tx_opts_schema'; @@ -17,13 +24,17 @@ import { IndexedFilterValues, MethodOpts, OrderInfo, + OrderStatus, OrderTransactionOpts, + ValidateOrderFillableOpts, } from '../types'; import { assert } from '../utils/assert'; import { decorators } from '../utils/decorators'; import { TransactionEncoder } from '../utils/transaction_encoder'; import { ContractWrapper } from './contract_wrapper'; +import { ERC20TokenWrapper } from './erc20_token_wrapper'; +import { ERC721TokenWrapper } from './erc721_token_wrapper'; import { ExchangeContract, ExchangeEventArgs, ExchangeEvents } from './generated/exchange'; /** @@ -33,6 +44,8 @@ import { ExchangeContract, ExchangeEventArgs, ExchangeEvents } from './generated export class ExchangeWrapper extends ContractWrapper { public abi: ContractAbi = artifacts.Exchange.compilerOutput.abi; private _exchangeContractIfExists?: ExchangeContract; + private _erc721TokenWrapper: ERC721TokenWrapper; + private _erc20TokenWrapper: ERC20TokenWrapper; private _contractAddressIfExists?: string; private _zrxContractAddressIfExists?: string; /** @@ -48,11 +61,15 @@ export class ExchangeWrapper extends ContractWrapper { constructor( web3Wrapper: Web3Wrapper, networkId: number, + erc20TokenWrapper: ERC20TokenWrapper, + erc721TokenWrapper: ERC721TokenWrapper, contractAddressIfExists?: string, zrxContractAddressIfExists?: string, blockPollingIntervalMs?: number, ) { super(web3Wrapper, networkId, blockPollingIntervalMs); + this._erc20TokenWrapper = erc20TokenWrapper; + this._erc721TokenWrapper = erc721TokenWrapper; this._contractAddressIfExists = contractAddressIfExists; this._zrxContractAddressIfExists = zrxContractAddressIfExists; } @@ -1085,6 +1102,64 @@ export class ExchangeWrapper extends ContractWrapper { return logs; } /** + * Validate if the supplied order is fillable, and throw if it isn't + * @param signedOrder SignedOrder of interest + * @param opts ValidateOrderFillableOpts options (e.g expectedFillTakerTokenAmount. + * If it isn't supplied, we check if the order is fillable for a non-zero amount) + */ + public async validateOrderFillableOrThrowAsync( + signedOrder: SignedOrder, + opts: ValidateOrderFillableOpts = {}, + ): Promise<void> { + const balanceAllowanceFetcher = new AssetBalanceAndProxyAllowanceFetcher( + this._erc20TokenWrapper, + this._erc721TokenWrapper, + BlockParamLiteral.Latest, + ); + const balanceAllowanceStore = new BalanceAndProxyAllowanceLazyStore(balanceAllowanceFetcher); + const exchangeTradeSimulator = new ExchangeTransferSimulator(balanceAllowanceStore); + + const expectedFillTakerTokenAmountIfExists = opts.expectedFillTakerTokenAmount; + const filledCancelledFetcher = new OrderFilledCancelledFetcher(this, BlockParamLiteral.Latest); + const orderValidationUtils = new OrderValidationUtils(filledCancelledFetcher); + await orderValidationUtils.validateOrderFillableOrThrowAsync( + exchangeTradeSimulator, + signedOrder, + this.getZRXAssetData(), + expectedFillTakerTokenAmountIfExists, + ); + } + /** + * Validate a call to FillOrder and throw if it wouldn't succeed + * @param signedOrder SignedOrder of interest + * @param fillTakerAssetAmount Amount we'd like to fill the order for + * @param takerAddress The taker of the order + */ + public async validateFillOrderThrowIfInvalidAsync( + signedOrder: SignedOrder, + fillTakerAssetAmount: BigNumber, + takerAddress: string, + ): Promise<void> { + const balanceAllowanceFetcher = new AssetBalanceAndProxyAllowanceFetcher( + this._erc20TokenWrapper, + this._erc721TokenWrapper, + BlockParamLiteral.Latest, + ); + const balanceAllowanceStore = new BalanceAndProxyAllowanceLazyStore(balanceAllowanceFetcher); + const exchangeTradeSimulator = new ExchangeTransferSimulator(balanceAllowanceStore); + + const filledCancelledFetcher = new OrderFilledCancelledFetcher(this, BlockParamLiteral.Latest); + const orderValidationUtils = new OrderValidationUtils(filledCancelledFetcher); + await orderValidationUtils.validateFillOrderThrowIfInvalidAsync( + exchangeTradeSimulator, + this._web3Wrapper.getProvider(), + signedOrder, + fillTakerAssetAmount, + takerAddress, + this.getZRXAssetData(), + ); + } + /** * Retrieves the Ethereum address of the Exchange contract deployed on the network * that the user-passed web3 provider is connected to. * @returns The Ethereum address of the Exchange contract being used. |