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authorFabio Berger <me@fabioberger.com>2018-08-15 05:21:47 +0800
committerFabio Berger <me@fabioberger.com>2018-08-15 05:21:47 +0800
commit2f2582a0da3095d61a99ef09744dc0995677558e (patch)
tree54989565919038c42d495dafb7426d4148605e84 /packages/contract-wrappers/src
parent8169155a6547fb0283cd0f5362aad3c0b173b00b (diff)
parentfadd292ecf367e42154856509d0ea0c20b23f2f1 (diff)
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Merge development
Diffstat (limited to 'packages/contract-wrappers/src')
-rw-r--r--packages/contract-wrappers/src/artifacts.ts2
-rw-r--r--packages/contract-wrappers/src/contract_wrappers.ts12
-rw-r--r--packages/contract-wrappers/src/contract_wrappers/exchange_wrapper.ts22
-rw-r--r--packages/contract-wrappers/src/contract_wrappers/forwarder_wrapper.ts220
-rw-r--r--packages/contract-wrappers/src/index.ts1
-rw-r--r--packages/contract-wrappers/src/schemas/contract_wrappers_private_network_config_schema.ts10
-rw-r--r--packages/contract-wrappers/src/schemas/contract_wrappers_public_network_config_schema.ts10
-rw-r--r--packages/contract-wrappers/src/schemas/method_opts_schema.ts2
-rw-r--r--packages/contract-wrappers/src/schemas/tx_opts_schema.ts2
-rw-r--r--packages/contract-wrappers/src/types.ts6
-rw-r--r--packages/contract-wrappers/src/utils/assert.ts60
-rw-r--r--packages/contract-wrappers/src/utils/calldata_optimization_utils.ts44
-rw-r--r--packages/contract-wrappers/src/utils/constants.ts2
13 files changed, 374 insertions, 19 deletions
diff --git a/packages/contract-wrappers/src/artifacts.ts b/packages/contract-wrappers/src/artifacts.ts
index 742d0e1b2..2481b311a 100644
--- a/packages/contract-wrappers/src/artifacts.ts
+++ b/packages/contract-wrappers/src/artifacts.ts
@@ -7,6 +7,7 @@ import * as ERC20Token from './artifacts/ERC20Token.json';
import * as ERC721Proxy from './artifacts/ERC721Proxy.json';
import * as ERC721Token from './artifacts/ERC721Token.json';
import * as Exchange from './artifacts/Exchange.json';
+import * as Forwarder from './artifacts/Forwarder.json';
import * as EtherToken from './artifacts/WETH9.json';
import * as ZRXToken from './artifacts/ZRXToken.json';
@@ -20,4 +21,5 @@ export const artifacts = {
EtherToken: (EtherToken as any) as ContractArtifact,
ERC20Proxy: (ERC20Proxy as any) as ContractArtifact,
ERC721Proxy: (ERC721Proxy as any) as ContractArtifact,
+ Forwarder: (Forwarder as any) as ContractArtifact,
};
diff --git a/packages/contract-wrappers/src/contract_wrappers.ts b/packages/contract-wrappers/src/contract_wrappers.ts
index 8010242c5..4277a0746 100644
--- a/packages/contract-wrappers/src/contract_wrappers.ts
+++ b/packages/contract-wrappers/src/contract_wrappers.ts
@@ -11,6 +11,7 @@ import { ERC721ProxyWrapper } from './contract_wrappers/erc721_proxy_wrapper';
import { ERC721TokenWrapper } from './contract_wrappers/erc721_token_wrapper';
import { EtherTokenWrapper } from './contract_wrappers/ether_token_wrapper';
import { ExchangeWrapper } from './contract_wrappers/exchange_wrapper';
+import { ForwarderWrapper } from './contract_wrappers/forwarder_wrapper';
import { ContractWrappersConfigSchema } from './schemas/contract_wrappers_config_schema';
import { contractWrappersPrivateNetworkConfigSchema } from './schemas/contract_wrappers_private_network_config_schema';
import { contractWrappersPublicNetworkConfigSchema } from './schemas/contract_wrappers_public_network_config_schema';
@@ -47,6 +48,11 @@ export class ContractWrappers {
* erc721Proxy smart contract.
*/
public erc721Proxy: ERC721ProxyWrapper;
+ /**
+ * An instance of the ForwarderWrapper class containing methods for interacting with any Forwarder smart contract.
+ */
+ public forwarder: ForwarderWrapper;
+
private _web3Wrapper: Web3Wrapper;
/**
* Instantiates a new ContractWrappers instance.
@@ -104,6 +110,12 @@ export class ContractWrappers {
config.zrxContractAddress,
blockPollingIntervalMs,
);
+ this.forwarder = new ForwarderWrapper(
+ this._web3Wrapper,
+ config.networkId,
+ config.forwarderContractAddress,
+ config.zrxContractAddress,
+ );
}
/**
* Sets a new web3 provider for 0x.js. Updating the provider will stop all
diff --git a/packages/contract-wrappers/src/contract_wrappers/exchange_wrapper.ts b/packages/contract-wrappers/src/contract_wrappers/exchange_wrapper.ts
index 5beb35a27..0febd154f 100644
--- a/packages/contract-wrappers/src/contract_wrappers/exchange_wrapper.ts
+++ b/packages/contract-wrappers/src/contract_wrappers/exchange_wrapper.ts
@@ -882,16 +882,36 @@ export class ExchangeWrapper extends ContractWrapper {
*/
@decorators.asyncZeroExErrorHandler
public async getOrderInfoAsync(order: Order | SignedOrder, methodOpts: MethodOpts = {}): Promise<OrderInfo> {
+ assert.doesConformToSchema('order', order, schemas.orderSchema);
if (!_.isUndefined(methodOpts)) {
assert.doesConformToSchema('methodOpts', methodOpts, methodOptsSchema);
}
const exchangeInstance = await this._getExchangeContractAsync();
-
const txData = {};
const orderInfo = await exchangeInstance.getOrderInfo.callAsync(order, txData, methodOpts.defaultBlock);
return orderInfo;
}
/**
+ * Get order info for multiple orders
+ * @param orders Orders
+ * @param methodOpts Optional arguments this method accepts.
+ * @returns Array of Order infos
+ */
+ @decorators.asyncZeroExErrorHandler
+ public async getOrdersInfoAsync(
+ orders: Array<Order | SignedOrder>,
+ methodOpts: MethodOpts = {},
+ ): Promise<OrderInfo[]> {
+ assert.doesConformToSchema('orders', orders, schemas.ordersSchema);
+ if (!_.isUndefined(methodOpts)) {
+ assert.doesConformToSchema('methodOpts', methodOpts, methodOptsSchema);
+ }
+ const exchangeInstance = await this._getExchangeContractAsync();
+ const txData = {};
+ const ordersInfo = await exchangeInstance.getOrdersInfo.callAsync(orders, txData, methodOpts.defaultBlock);
+ return ordersInfo;
+ }
+ /**
* Cancel a given order.
* @param order An object that conforms to the Order or SignedOrder interface. The order you would like to cancel.
* @param orderTransactionOpts Optional arguments this method accepts.
diff --git a/packages/contract-wrappers/src/contract_wrappers/forwarder_wrapper.ts b/packages/contract-wrappers/src/contract_wrappers/forwarder_wrapper.ts
new file mode 100644
index 000000000..13ef0fe01
--- /dev/null
+++ b/packages/contract-wrappers/src/contract_wrappers/forwarder_wrapper.ts
@@ -0,0 +1,220 @@
+import { schemas } from '@0xproject/json-schemas';
+import { AssetProxyId, SignedOrder } from '@0xproject/types';
+import { BigNumber } from '@0xproject/utils';
+import { Web3Wrapper } from '@0xproject/web3-wrapper';
+import { ContractAbi } from 'ethereum-types';
+import * as _ from 'lodash';
+
+import { artifacts } from '../artifacts';
+import { orderTxOptsSchema } from '../schemas/order_tx_opts_schema';
+import { txOptsSchema } from '../schemas/tx_opts_schema';
+import { TransactionOpts } from '../types';
+import { assert } from '../utils/assert';
+import { calldataOptimizationUtils } from '../utils/calldata_optimization_utils';
+import { constants } from '../utils/constants';
+
+import { ContractWrapper } from './contract_wrapper';
+import { ForwarderContract } from './generated/forwarder';
+
+/**
+ * This class includes the functionality related to interacting with the Forwarder contract.
+ */
+export class ForwarderWrapper extends ContractWrapper {
+ public abi: ContractAbi = artifacts.Forwarder.compilerOutput.abi;
+ private _forwarderContractIfExists?: ForwarderContract;
+ private _contractAddressIfExists?: string;
+ private _zrxContractAddressIfExists?: string;
+ constructor(
+ web3Wrapper: Web3Wrapper,
+ networkId: number,
+ contractAddressIfExists?: string,
+ zrxContractAddressIfExists?: string,
+ ) {
+ super(web3Wrapper, networkId);
+ this._contractAddressIfExists = contractAddressIfExists;
+ this._zrxContractAddressIfExists = zrxContractAddressIfExists;
+ }
+ /**
+ * Purchases as much of orders' makerAssets as possible by selling up to 95% of transaction's ETH value.
+ * Any ZRX required to pay fees for primary orders will automatically be purchased by this contract.
+ * 5% of ETH value is reserved for paying fees to order feeRecipients (in ZRX) and forwarding contract feeRecipient (in ETH).
+ * Any ETH not spent will be refunded to sender.
+ * @param signedOrders An array of objects that conform to the SignedOrder interface. All orders must specify the same makerAsset.
+ * All orders must specify WETH as the takerAsset
+ * @param takerAddress The user Ethereum address who would like to fill this order. Must be available via the supplied
+ * Provider provided at instantiation.
+ * @param ethAmount The amount of eth to send with the transaction (in wei).
+ * @param signedFeeOrders An array of objects that conform to the SignedOrder interface. All orders must specify ZRX as makerAsset and WETH as takerAsset.
+ * Used to purchase ZRX for primary order fees.
+ * @param feePercentage The percentage of WETH sold that will payed as fee to forwarding contract feeRecipient.
+ * Defaults to 0.
+ * @param feeRecipientAddress The address that will receive ETH when signedFeeOrders are filled.
+ * @param txOpts Transaction parameters.
+ * @return Transaction hash.
+ */
+ public async marketSellOrdersWithEthAsync(
+ signedOrders: SignedOrder[],
+ takerAddress: string,
+ ethAmount: BigNumber,
+ signedFeeOrders: SignedOrder[] = [],
+ feePercentage: BigNumber = constants.ZERO_AMOUNT,
+ feeRecipientAddress: string = constants.NULL_ADDRESS,
+ txOpts: TransactionOpts = {},
+ ): Promise<string> {
+ // type assertions
+ assert.doesConformToSchema('signedOrders', signedOrders, schemas.signedOrdersSchema);
+ await assert.isSenderAddressAsync('takerAddress', takerAddress, this._web3Wrapper);
+ assert.isBigNumber('ethAmount', ethAmount);
+ assert.doesConformToSchema('signedFeeOrders', signedFeeOrders, schemas.signedOrdersSchema);
+ assert.isBigNumber('feePercentage', feePercentage);
+ assert.isETHAddressHex('feeRecipientAddress', feeRecipientAddress);
+ assert.doesConformToSchema('txOpts', txOpts, txOptsSchema);
+ // other assertions
+ assert.ordersCanBeUsedForForwarderContract(signedOrders, this.getEtherTokenAddress());
+ assert.feeOrdersCanBeUsedForForwarderContract(
+ signedFeeOrders,
+ this.getZRXTokenAddress(),
+ this.getEtherTokenAddress(),
+ );
+ // lowercase input addresses
+ const normalizedTakerAddress = takerAddress.toLowerCase();
+ const normalizedFeeRecipientAddress = feeRecipientAddress.toLowerCase();
+ // optimize orders
+ const optimizedMarketOrders = calldataOptimizationUtils.optimizeForwarderOrders(signedOrders);
+ const optimizedFeeOrders = calldataOptimizationUtils.optimizeForwarderFeeOrders(signedFeeOrders);
+ // send transaction
+ const forwarderContractInstance = await this._getForwarderContractAsync();
+ const txHash = await forwarderContractInstance.marketSellOrdersWithEth.sendTransactionAsync(
+ optimizedMarketOrders,
+ _.map(optimizedMarketOrders, order => order.signature),
+ optimizedFeeOrders,
+ _.map(optimizedFeeOrders, order => order.signature),
+ feePercentage,
+ feeRecipientAddress,
+ {
+ value: ethAmount,
+ from: normalizedTakerAddress,
+ gas: txOpts.gasLimit,
+ gasPrice: txOpts.gasPrice,
+ },
+ );
+ return txHash;
+ }
+ /**
+ * Attempt to purchase makerAssetFillAmount of makerAsset by selling ethAmount provided with transaction.
+ * Any ZRX required to pay fees for primary orders will automatically be purchased by the contract.
+ * Any ETH not spent will be refunded to sender.
+ * @param signedOrders An array of objects that conform to the SignedOrder interface. All orders must specify the same makerAsset.
+ * All orders must specify WETH as the takerAsset
+ * @param makerAssetFillAmount The amount of the order (in taker asset baseUnits) that you wish to fill.
+ * @param takerAddress The user Ethereum address who would like to fill this order. Must be available via the supplied
+ * Provider provided at instantiation.
+ * @param ethAmount The amount of eth to send with the transaction (in wei).
+ * @param signedFeeOrders An array of objects that conform to the SignedOrder interface. All orders must specify ZRX as makerAsset and WETH as takerAsset.
+ * Used to purchase ZRX for primary order fees.
+ * @param feePercentage The percentage of WETH sold that will payed as fee to forwarding contract feeRecipient.
+ * Defaults to 0.
+ * @param feeRecipientAddress The address that will receive ETH when signedFeeOrders are filled.
+ * @param txOpts Transaction parameters.
+ * @return Transaction hash.
+ */
+ public async marketBuyOrdersWithEthAsync(
+ signedOrders: SignedOrder[],
+ makerAssetFillAmount: BigNumber,
+ takerAddress: string,
+ ethAmount: BigNumber,
+ signedFeeOrders: SignedOrder[] = [],
+ feePercentage: BigNumber = constants.ZERO_AMOUNT,
+ feeRecipientAddress: string = constants.NULL_ADDRESS,
+ txOpts: TransactionOpts = {},
+ ): Promise<string> {
+ // type assertions
+ assert.doesConformToSchema('signedOrders', signedOrders, schemas.signedOrdersSchema);
+ assert.isBigNumber('makerAssetFillAmount', makerAssetFillAmount);
+ await assert.isSenderAddressAsync('takerAddress', takerAddress, this._web3Wrapper);
+ assert.isBigNumber('ethAmount', ethAmount);
+ assert.doesConformToSchema('signedFeeOrders', signedFeeOrders, schemas.signedOrdersSchema);
+ assert.isBigNumber('feePercentage', feePercentage);
+ assert.isETHAddressHex('feeRecipientAddress', feeRecipientAddress);
+ assert.doesConformToSchema('txOpts', txOpts, txOptsSchema);
+ // other assertions
+ assert.ordersCanBeUsedForForwarderContract(signedOrders, this.getEtherTokenAddress());
+ assert.feeOrdersCanBeUsedForForwarderContract(
+ signedFeeOrders,
+ this.getZRXTokenAddress(),
+ this.getEtherTokenAddress(),
+ );
+ // lowercase input addresses
+ const normalizedTakerAddress = takerAddress.toLowerCase();
+ const normalizedFeeRecipientAddress = feeRecipientAddress.toLowerCase();
+ // optimize orders
+ const optimizedMarketOrders = calldataOptimizationUtils.optimizeForwarderOrders(signedOrders);
+ const optimizedFeeOrders = calldataOptimizationUtils.optimizeForwarderFeeOrders(signedFeeOrders);
+ // send transaction
+ const forwarderContractInstance = await this._getForwarderContractAsync();
+ const txHash = await forwarderContractInstance.marketBuyOrdersWithEth.sendTransactionAsync(
+ optimizedMarketOrders,
+ makerAssetFillAmount,
+ _.map(optimizedMarketOrders, order => order.signature),
+ optimizedFeeOrders,
+ _.map(optimizedFeeOrders, order => order.signature),
+ feePercentage,
+ feeRecipientAddress,
+ {
+ value: ethAmount,
+ from: normalizedTakerAddress,
+ gas: txOpts.gasLimit,
+ gasPrice: txOpts.gasPrice,
+ },
+ );
+ return txHash;
+ }
+ /**
+ * Retrieves the Ethereum address of the Forwarder contract deployed on the network
+ * that the user-passed web3 provider is connected to.
+ * @returns The Ethereum address of the Forwarder contract being used.
+ */
+ public getContractAddress(): string {
+ const contractAddress = this._getContractAddress(artifacts.Forwarder, this._contractAddressIfExists);
+ return contractAddress;
+ }
+ /**
+ * Returns the ZRX token address used by the forwarder contract.
+ * @return Address of ZRX token
+ */
+ public getZRXTokenAddress(): string {
+ const contractAddress = this._getContractAddress(artifacts.ZRXToken, this._zrxContractAddressIfExists);
+ return contractAddress;
+ }
+ /**
+ * Returns the Ether token address used by the forwarder contract.
+ * @return Address of Ether token
+ */
+ public getEtherTokenAddress(): string {
+ const contractAddress = this._getContractAddress(artifacts.EtherToken);
+ return contractAddress;
+ }
+ // HACK: We don't want this method to be visible to the other units within that package but not to the end user.
+ // TS doesn't give that possibility and therefore we make it private and access it over an any cast. Because of that tslint sees it as unused.
+ // tslint:disable-next-line:no-unused-variable
+ private _invalidateContractInstance(): void {
+ delete this._forwarderContractIfExists;
+ }
+ private async _getForwarderContractAsync(): Promise<ForwarderContract> {
+ if (!_.isUndefined(this._forwarderContractIfExists)) {
+ return this._forwarderContractIfExists;
+ }
+ const [abi, address] = await this._getContractAbiAndAddressFromArtifactsAsync(
+ artifacts.Forwarder,
+ this._contractAddressIfExists,
+ );
+ const contractInstance = new ForwarderContract(
+ abi,
+ address,
+ this._web3Wrapper.getProvider(),
+ this._web3Wrapper.getContractDefaults(),
+ );
+ this._forwarderContractIfExists = contractInstance;
+ return this._forwarderContractIfExists;
+ }
+}
diff --git a/packages/contract-wrappers/src/index.ts b/packages/contract-wrappers/src/index.ts
index da9453640..41d60f05a 100644
--- a/packages/contract-wrappers/src/index.ts
+++ b/packages/contract-wrappers/src/index.ts
@@ -5,6 +5,7 @@ export { EtherTokenWrapper } from './contract_wrappers/ether_token_wrapper';
export { ExchangeWrapper } from './contract_wrappers/exchange_wrapper';
export { ERC20ProxyWrapper } from './contract_wrappers/erc20_proxy_wrapper';
export { ERC721ProxyWrapper } from './contract_wrappers/erc721_proxy_wrapper';
+export { ForwarderWrapper } from './contract_wrappers/forwarder_wrapper';
export {
ContractWrappersError,
diff --git a/packages/contract-wrappers/src/schemas/contract_wrappers_private_network_config_schema.ts b/packages/contract-wrappers/src/schemas/contract_wrappers_private_network_config_schema.ts
index 7e2eca61c..904690ae7 100644
--- a/packages/contract-wrappers/src/schemas/contract_wrappers_private_network_config_schema.ts
+++ b/packages/contract-wrappers/src/schemas/contract_wrappers_private_network_config_schema.ts
@@ -5,11 +5,11 @@ export const contractWrappersPrivateNetworkConfigSchema = {
type: 'number',
minimum: 1,
},
- gasPrice: { $ref: '/Number' },
- zrxContractAddress: { $ref: '/Address' },
- exchangeContractAddress: { $ref: '/Address' },
- erc20ProxyContractAddress: { $ref: '/Address' },
- erc721ProxyContractAddress: { $ref: '/Address' },
+ gasPrice: { $ref: '/numberSchema' },
+ zrxContractAddress: { $ref: '/addressSchema' },
+ exchangeContractAddress: { $ref: '/addressSchema' },
+ erc20ProxyContractAddress: { $ref: '/addressSchema' },
+ erc721ProxyContractAddress: { $ref: '/addressSchema' },
blockPollingIntervalMs: { type: 'number' },
orderWatcherConfig: {
type: 'object',
diff --git a/packages/contract-wrappers/src/schemas/contract_wrappers_public_network_config_schema.ts b/packages/contract-wrappers/src/schemas/contract_wrappers_public_network_config_schema.ts
index b80e04310..5cd008ae0 100644
--- a/packages/contract-wrappers/src/schemas/contract_wrappers_public_network_config_schema.ts
+++ b/packages/contract-wrappers/src/schemas/contract_wrappers_public_network_config_schema.ts
@@ -19,11 +19,11 @@ export const contractWrappersPublicNetworkConfigSchema = {
networkNameToId.ganache,
],
},
- gasPrice: { $ref: '/Number' },
- zrxContractAddress: { $ref: '/Address' },
- exchangeContractAddress: { $ref: '/Address' },
- erc20ProxyContractAddress: { $ref: '/Address' },
- erc721ProxyContractAddress: { $ref: '/Address' },
+ gasPrice: { $ref: '/numberSchema' },
+ zrxContractAddress: { $ref: '/addressSchema' },
+ exchangeContractAddress: { $ref: '/addressSchema' },
+ erc20ProxyContractAddress: { $ref: '/addressSchema' },
+ erc721ProxyContractAddress: { $ref: '/addressSchema' },
blockPollingIntervalMs: { type: 'number' },
orderWatcherConfig: {
type: 'object',
diff --git a/packages/contract-wrappers/src/schemas/method_opts_schema.ts b/packages/contract-wrappers/src/schemas/method_opts_schema.ts
index ef434070a..83003f818 100644
--- a/packages/contract-wrappers/src/schemas/method_opts_schema.ts
+++ b/packages/contract-wrappers/src/schemas/method_opts_schema.ts
@@ -1,7 +1,7 @@
export const methodOptsSchema = {
id: '/MethodOpts',
properties: {
- defaultBlock: { $ref: '/BlockParam' },
+ defaultBlock: { $ref: '/blockParamSchema' },
},
type: 'object',
};
diff --git a/packages/contract-wrappers/src/schemas/tx_opts_schema.ts b/packages/contract-wrappers/src/schemas/tx_opts_schema.ts
index bddc33b6c..83c819be2 100644
--- a/packages/contract-wrappers/src/schemas/tx_opts_schema.ts
+++ b/packages/contract-wrappers/src/schemas/tx_opts_schema.ts
@@ -1,7 +1,7 @@
export const txOptsSchema = {
id: '/TxOpts',
properties: {
- gasPrice: { $ref: '/Number' },
+ gasPrice: { $ref: '/numberSchema' },
gasLimit: { type: 'number' },
},
type: 'object',
diff --git a/packages/contract-wrappers/src/types.ts b/packages/contract-wrappers/src/types.ts
index f9d7a6b9f..2b3cdc591 100644
--- a/packages/contract-wrappers/src/types.ts
+++ b/packages/contract-wrappers/src/types.ts
@@ -109,6 +109,7 @@ export type SyncMethod = (...args: any[]) => any;
* zrxContractAddress: The address of the ZRX contract to use
* erc20ProxyContractAddress: The address of the erc20 token transfer proxy contract to use
* erc721ProxyContractAddress: The address of the erc721 token transfer proxy contract to use
+ * forwarderContractAddress: The address of the forwarder contract to use
* orderWatcherConfig: All the configs related to the orderWatcher
* blockPollingIntervalMs: The interval to use for block polling in event watching methods (defaults to 1000)
*/
@@ -119,6 +120,7 @@ export interface ContractWrappersConfig {
zrxContractAddress?: string;
erc20ProxyContractAddress?: string;
erc721ProxyContractAddress?: string;
+ forwarderContractAddress?: string;
blockPollingIntervalMs?: number;
}
@@ -172,13 +174,13 @@ export enum TransferType {
export type OnOrderStateChangeCallback = (err: Error | null, orderState?: OrderState) => void;
export interface OrderInfo {
- orderStatus: number;
+ orderStatus: OrderStatus;
orderHash: string;
orderTakerAssetFilledAmount: BigNumber;
}
export enum OrderStatus {
- INVALID,
+ INVALID = 0,
INVALID_MAKER_ASSET_AMOUNT,
INVALID_TAKER_ASSET_AMOUNT,
FILLABLE,
diff --git a/packages/contract-wrappers/src/utils/assert.ts b/packages/contract-wrappers/src/utils/assert.ts
index 652e5bec3..bed833b8f 100644
--- a/packages/contract-wrappers/src/utils/assert.ts
+++ b/packages/contract-wrappers/src/utils/assert.ts
@@ -1,11 +1,14 @@
import { assert as sharedAssert } from '@0xproject/assert';
// HACK: We need those two unused imports because they're actually used by sharedAssert which gets injected here
import { Schema } from '@0xproject/json-schemas'; // tslint:disable-line:no-unused-variable
-import { signatureUtils } from '@0xproject/order-utils';
-import { ECSignature } from '@0xproject/types'; // tslint:disable-line:no-unused-variable
+import { signatureUtils, assetDataUtils } from '@0xproject/order-utils';
+import { Order } from '@0xproject/types'; // tslint:disable-line:no-unused-variable
import { BigNumber } from '@0xproject/utils'; // tslint:disable-line:no-unused-variable
import { Web3Wrapper } from '@0xproject/web3-wrapper';
import { Provider } from 'ethereum-types';
+import * as _ from 'lodash';
+
+import { constants } from './constants';
export const assert = {
...sharedAssert,
@@ -16,12 +19,12 @@ export const assert = {
signerAddress: string,
): Promise<void> {
const isValid = await signatureUtils.isValidSignatureAsync(provider, orderHash, signature, signerAddress);
- this.assert(isValid, `Expected order with hash '${orderHash}' to have a valid signature`);
+ sharedAssert.assert(isValid, `Expected order with hash '${orderHash}' to have a valid signature`);
},
isValidSubscriptionToken(variableName: string, subscriptionToken: string): void {
const uuidRegex = new RegExp('^[a-fA-F0-9]{8}-[a-fA-F0-9]{4}-[a-fA-F0-9]{4}-[a-fA-F0-9]{4}-[a-fA-F0-9]{12}$');
const isValid = uuidRegex.test(subscriptionToken);
- this.assert(isValid, `Expected ${variableName} to be a valid subscription token`);
+ sharedAssert.assert(isValid, `Expected ${variableName} to be a valid subscription token`);
},
async isSenderAddressAsync(
variableName: string,
@@ -35,4 +38,53 @@ export const assert = {
`Specified ${variableName} ${senderAddressHex} isn't available through the supplied web3 provider`,
);
},
+ ordersCanBeUsedForForwarderContract(orders: Order[], etherTokenAddress: string): void {
+ sharedAssert.assert(!_.isEmpty(orders), 'Expected at least 1 signed order. Found no orders');
+ assert.ordersHaveAtMostOneUniqueValueForProperty(orders, 'makerAssetData');
+ assert.allTakerAssetDatasAreErc20Token(orders, etherTokenAddress);
+ assert.allTakerAddressesAreNull(orders);
+ },
+ feeOrdersCanBeUsedForForwarderContract(orders: Order[], zrxTokenAddress: string, etherTokenAddress: string): void {
+ if (!_.isEmpty(orders)) {
+ assert.allMakerAssetDatasAreErc20Token(orders, zrxTokenAddress);
+ assert.allTakerAssetDatasAreErc20Token(orders, etherTokenAddress);
+ }
+ },
+ allTakerAddressesAreNull(orders: Order[]): void {
+ assert.ordersHaveAtMostOneUniqueValueForProperty(orders, 'takerAddress', constants.NULL_ADDRESS);
+ },
+ allMakerAssetDatasAreErc20Token(orders: Order[], tokenAddress: string): void {
+ assert.ordersHaveAtMostOneUniqueValueForProperty(
+ orders,
+ 'makerAssetData',
+ assetDataUtils.encodeERC20AssetData(tokenAddress),
+ );
+ },
+ allTakerAssetDatasAreErc20Token(orders: Order[], tokenAddress: string): void {
+ assert.ordersHaveAtMostOneUniqueValueForProperty(
+ orders,
+ 'takerAssetData',
+ assetDataUtils.encodeERC20AssetData(tokenAddress),
+ );
+ },
+ /*
+ * Asserts that all the orders have the same value for the provided propertyName
+ * If the value parameter is provided, this asserts that all orders have the prope
+ */
+ ordersHaveAtMostOneUniqueValueForProperty(orders: Order[], propertyName: string, value?: any): void {
+ const allValues = _.map(orders, order => _.get(order, propertyName));
+ sharedAssert.hasAtMostOneUniqueValue(
+ allValues,
+ `Expected all orders to have the same ${propertyName} field. Found the following ${propertyName} values: ${JSON.stringify(
+ allValues,
+ )}`,
+ );
+ if (!_.isUndefined(value)) {
+ const firstValue = _.head(allValues);
+ sharedAssert.assert(
+ firstValue === value,
+ `Expected all orders to have a ${propertyName} field with value: ${value}. Found: ${firstValue}`,
+ );
+ }
+ },
};
diff --git a/packages/contract-wrappers/src/utils/calldata_optimization_utils.ts b/packages/contract-wrappers/src/utils/calldata_optimization_utils.ts
new file mode 100644
index 000000000..3172cf531
--- /dev/null
+++ b/packages/contract-wrappers/src/utils/calldata_optimization_utils.ts
@@ -0,0 +1,44 @@
+import { SignedOrder } from '@0xproject/types';
+import * as _ from 'lodash';
+
+import { constants } from './constants';
+
+export const calldataOptimizationUtils = {
+ /**
+ * Takes an array of orders and outputs an array of equivalent orders where all takerAssetData are '0x' and
+ * all makerAssetData are '0x' except for that of the first order, which retains its original value
+ * @param orders An array of SignedOrder objects
+ * @returns optimized orders
+ */
+ optimizeForwarderOrders(orders: SignedOrder[]): SignedOrder[] {
+ const optimizedOrders = _.map(orders, (order, index) =>
+ transformOrder(order, {
+ makerAssetData: index === 0 ? order.makerAssetData : constants.NULL_BYTES,
+ takerAssetData: constants.NULL_BYTES,
+ }),
+ );
+ return optimizedOrders;
+ },
+ /**
+ * Takes an array of orders and outputs an array of equivalent orders where all takerAssetData are '0x' and
+ * all makerAssetData are '0x'
+ * @param orders An array of SignedOrder objects
+ * @returns optimized orders
+ */
+ optimizeForwarderFeeOrders(orders: SignedOrder[]): SignedOrder[] {
+ const optimizedOrders = _.map(orders, (order, index) =>
+ transformOrder(order, {
+ makerAssetData: constants.NULL_BYTES,
+ takerAssetData: constants.NULL_BYTES,
+ }),
+ );
+ return optimizedOrders;
+ },
+};
+
+const transformOrder = (order: SignedOrder, partialOrder: Partial<SignedOrder>) => {
+ return {
+ ...order,
+ ...partialOrder,
+ };
+};
diff --git a/packages/contract-wrappers/src/utils/constants.ts b/packages/contract-wrappers/src/utils/constants.ts
index 039475b7f..2df11538c 100644
--- a/packages/contract-wrappers/src/utils/constants.ts
+++ b/packages/contract-wrappers/src/utils/constants.ts
@@ -2,6 +2,7 @@ import { BigNumber } from '@0xproject/utils';
export const constants = {
NULL_ADDRESS: '0x0000000000000000000000000000000000000000',
+ NULL_BYTES: '0x',
TESTRPC_NETWORK_ID: 50,
INVALID_JUMP_PATTERN: 'invalid JUMP at',
REVERT: 'revert',
@@ -10,4 +11,5 @@ export const constants = {
// tslint:disable-next-line:custom-no-magic-numbers
UNLIMITED_ALLOWANCE_IN_BASE_UNITS: new BigNumber(2).pow(256).minus(1),
DEFAULT_BLOCK_POLLING_INTERVAL: 1000,
+ ZERO_AMOUNT: new BigNumber(0),
};