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-rw-r--r--packages/contract-wrappers/src/contract_wrappers.ts2
-rw-r--r--packages/contract-wrappers/src/contract_wrappers/exchange_wrapper.ts79
2 files changed, 79 insertions, 2 deletions
diff --git a/packages/contract-wrappers/src/contract_wrappers.ts b/packages/contract-wrappers/src/contract_wrappers.ts
index 8ca0fc93c..4272cc943 100644
--- a/packages/contract-wrappers/src/contract_wrappers.ts
+++ b/packages/contract-wrappers/src/contract_wrappers.ts
@@ -111,6 +111,8 @@ export class ContractWrappers {
this.exchange = new ExchangeWrapper(
this._web3Wrapper,
config.networkId,
+ this.erc20Token,
+ this.erc721Token,
config.exchangeContractAddress,
config.zrxContractAddress,
blockPollingIntervalMs,
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.