6 files changed, 29 insertions, 17 deletions
diff --git a/packages/contracts/src/utils/erc20_wrapper.ts b/packages/contracts/src/utils/erc20_wrapper.ts
index f12571b48..0303649a5 100644
--- a/packages/contracts/src/utils/erc20_wrapper.ts
+++ b/packages/contracts/src/utils/erc20_wrapper.ts
@@ -23,7 +23,7 @@ export class ERC20Wrapper {
     }
     public async deployDummyTokensAsync(): Promise<DummyERC20TokenContract[]> {
         this._dummyTokenContracts = await Promise.all(
-            _.times(constants.NUM_DUMMY_ERC20_TO_DEPLOY, () =>
+            _.times(constants.NUM_DUMMY_ERC20_TO_DEPLOY, async () =>
                 DummyERC20TokenContract.deployFrom0xArtifactAsync(
                     artifacts.DummyERC20Token,
                     this._provider,
@@ -45,7 +45,7 @@ export class ERC20Wrapper {
         );
         return this._proxyContract;
     }
-    public async setBalancesAndAllowancesAsync() {
+    public async setBalancesAndAllowancesAsync(): Promise<void> {
         this._validateDummyTokenContractsExistOrThrow();
         this._validateProxyContractExistsOrThrow();
         const setBalancePromises: Array<Promise<string>> = [];
@@ -103,12 +103,12 @@ export class ERC20Wrapper {
         const tokenAddresses = _.map(this._dummyTokenContracts, dummyTokenContract => dummyTokenContract.address);
         return tokenAddresses;
     }
-    private _validateDummyTokenContractsExistOrThrow() {
+    private _validateDummyTokenContractsExistOrThrow(): void {
         if (_.isUndefined(this._dummyTokenContracts)) {
             throw new Error('Dummy ERC20 tokens not yet deployed, please call "deployDummyTokensAsync"');
         }
     }
-    private _validateProxyContractExistsOrThrow() {
+    private _validateProxyContractExistsOrThrow(): void {
         if (_.isUndefined(this._proxyContract)) {
             throw new Error('ERC20 proxy contract not yet deployed, please call "deployProxyAsync"');
         }
diff --git a/packages/contracts/src/utils/erc721_wrapper.ts b/packages/contracts/src/utils/erc721_wrapper.ts
index 5b5de262f..36988ba31 100644
--- a/packages/contracts/src/utils/erc721_wrapper.ts
+++ b/packages/contracts/src/utils/erc721_wrapper.ts
@@ -25,7 +25,7 @@ export class ERC721Wrapper {
     }
     public async deployDummyTokensAsync(): Promise<DummyERC721TokenContract[]> {
         this._dummyTokenContracts = await Promise.all(
-            _.times(constants.NUM_DUMMY_ERC721_TO_DEPLOY, () =>
+            _.times(constants.NUM_DUMMY_ERC721_TO_DEPLOY, async () =>
                 DummyERC721TokenContract.deployFrom0xArtifactAsync(
                     artifacts.DummyERC721Token,
                     this._provider,
@@ -45,7 +45,7 @@ export class ERC721Wrapper {
         );
         return this._proxyContract;
     }
-    public async setBalancesAndAllowancesAsync() {
+    public async setBalancesAndAllowancesAsync(): Promise<void> {
         this._validateDummyTokenContractsExistOrThrow();
         this._validateProxyContractExistsOrThrow();
         const setBalancePromises: Array<Promise<string>> = [];
@@ -125,17 +125,17 @@ export class ERC721Wrapper {
         const tokenAddresses = _.map(this._dummyTokenContracts, dummyTokenContract => dummyTokenContract.address);
         return tokenAddresses;
     }
-    private _validateDummyTokenContractsExistOrThrow() {
+    private _validateDummyTokenContractsExistOrThrow(): void {
         if (_.isUndefined(this._dummyTokenContracts)) {
             throw new Error('Dummy ERC721 tokens not yet deployed, please call "deployDummyTokensAsync"');
         }
     }
-    private _validateProxyContractExistsOrThrow() {
+    private _validateProxyContractExistsOrThrow(): void {
         if (_.isUndefined(this._proxyContract)) {
             throw new Error('ERC721 proxy contract not yet deployed, please call "deployProxyAsync"');
         }
     }
-    private _validateBalancesAndAllowancesSetOrThrow() {
+    private _validateBalancesAndAllowancesSetOrThrow(): void {
         if (_.keys(this._initialTokenIdsByOwner).length === 0) {
             throw new Error(
                 'Dummy ERC721 balances and allowances not yet set, please call "setBalancesAndAllowancesAsync"',
diff --git a/packages/contracts/src/utils/exchange_wrapper.ts b/packages/contracts/src/utils/exchange_wrapper.ts
index 46531fa3f..21e569f54 100644
--- a/packages/contracts/src/utils/exchange_wrapper.ts
+++ b/packages/contracts/src/utils/exchange_wrapper.ts
@@ -245,7 +245,7 @@ export class ExchangeWrapper {
         const tx = await this._getTxWithDecodedExchangeLogsAsync(txHash);
         return tx;
     }
-    private async _getTxWithDecodedExchangeLogsAsync(txHash: string) {
+    private async _getTxWithDecodedExchangeLogsAsync(txHash: string): Promise<TransactionReceiptWithDecodedLogs> {
         const tx = await this._zeroEx.awaitTransactionMinedAsync(txHash);
         tx.logs = _.filter(tx.logs, log => log.address === this._exchange.address);
         tx.logs = _.map(tx.logs, log => this._logDecoder.decodeLogOrThrow(log));
diff --git a/packages/contracts/src/utils/formatters.ts b/packages/contracts/src/utils/formatters.ts
index e706c15b5..bfa48d6f1 100644
--- a/packages/contracts/src/utils/formatters.ts
+++ b/packages/contracts/src/utils/formatters.ts
@@ -5,7 +5,7 @@ import { orderUtils } from './order_utils';
 import { BatchCancelOrders, BatchFillOrders, MarketBuyOrders, MarketSellOrders, SignedOrder } from './types';
 
 export const formatters = {
-    createBatchFill(signedOrders: SignedOrder[], takerAssetFillAmounts: BigNumber[] = []) {
+    createBatchFill(signedOrders: SignedOrder[], takerAssetFillAmounts: BigNumber[] = []): BatchFillOrders {
         const batchFill: BatchFillOrders = {
             orders: [],
             signatures: [],
@@ -21,7 +21,7 @@ export const formatters = {
         });
         return batchFill;
     },
-    createMarketSellOrders(signedOrders: SignedOrder[], takerAssetFillAmount: BigNumber) {
+    createMarketSellOrders(signedOrders: SignedOrder[], takerAssetFillAmount: BigNumber): MarketSellOrders {
         const marketSellOrders: MarketSellOrders = {
             orders: [],
             signatures: [],
@@ -34,7 +34,7 @@ export const formatters = {
         });
         return marketSellOrders;
     },
-    createMarketBuyOrders(signedOrders: SignedOrder[], makerAssetFillAmount: BigNumber) {
+    createMarketBuyOrders(signedOrders: SignedOrder[], makerAssetFillAmount: BigNumber): MarketBuyOrders {
         const marketBuyOrders: MarketBuyOrders = {
             orders: [],
             signatures: [],
@@ -47,7 +47,7 @@ export const formatters = {
         });
         return marketBuyOrders;
     },
-    createBatchCancel(signedOrders: SignedOrder[]) {
+    createBatchCancel(signedOrders: SignedOrder[]): BatchCancelOrders {
         const batchCancel: BatchCancelOrders = {
             orders: [],
         };
diff --git a/packages/contracts/src/utils/order_utils.ts b/packages/contracts/src/utils/order_utils.ts
index 7a482ad9e..8adc6b735 100644
--- a/packages/contracts/src/utils/order_utils.ts
+++ b/packages/contracts/src/utils/order_utils.ts
@@ -4,7 +4,7 @@ import ethUtil = require('ethereumjs-util');
 import * as _ from 'lodash';
 
 import { crypto } from './crypto';
-import { OrderStruct, SignatureType, SignedOrder, UnsignedOrder } from './types';
+import { CancelOrder, MatchOrder, OrderStruct, SignatureType, SignedOrder, UnsignedOrder } from './types';
 
 export const orderUtils = {
     createFill: (signedOrder: SignedOrder, takerAssetFillAmount?: BigNumber) => {
@@ -15,7 +15,7 @@ export const orderUtils = {
         };
         return fill;
     },
-    createCancel(signedOrder: SignedOrder, takerAssetCancelAmount?: BigNumber) {
+    createCancel(signedOrder: SignedOrder, takerAssetCancelAmount?: BigNumber): CancelOrder {
         const cancel = {
             order: orderUtils.getOrderStruct(signedOrder),
             takerAssetCancelAmount: takerAssetCancelAmount || signedOrder.takerAssetAmount,
@@ -80,7 +80,7 @@ export const orderUtils = {
         const orderHashHex = `0x${orderHashBuff.toString('hex')}`;
         return orderHashHex;
     },
-    createMatchOrders(signedOrderLeft: SignedOrder, signedOrderRight: SignedOrder) {
+    createMatchOrders(signedOrderLeft: SignedOrder, signedOrderRight: SignedOrder): MatchOrder {
         const fill = {
             left: orderUtils.getOrderStruct(signedOrderLeft),
             right: orderUtils.getOrderStruct(signedOrderRight),
diff --git a/packages/contracts/src/utils/types.ts b/packages/contracts/src/utils/types.ts
index 8d81adece..ef86b4f38 100644
--- a/packages/contracts/src/utils/types.ts
+++ b/packages/contracts/src/utils/types.ts
@@ -197,3 +197,15 @@ export interface ProxyData {
     tokenAddress?: string;
     data?: any;
 }
+
+export interface CancelOrder {
+    order: OrderStruct;
+    takerAssetCancelAmount: BigNumber;
+}
+
+export interface MatchOrder {
+    left: OrderStruct;
+    right: OrderStruct;
+    leftSignature: string;
+    rightSignature: string;
+}