Add ony abi-gen changes from Greg's PR

packages/abi-gen/src/index.ts

@@ -1,7 +1,7 @@
 #!/usr/bin/env node
 
 import { AbiDefinition, ConstructorAbi, EventAbi, MethodAbi } from '@0xproject/types';
-import { logUtils } from '@0xproject/utils';
+import { abiUtils, logUtils } from '@0xproject/utils';
 import chalk from 'chalk';
 import * as fs from 'fs';
 import { sync as globSync } from 'glob';
@@ -12,7 +12,7 @@ import * as yargs from 'yargs';
 
 import toSnakeCase = require('to-snake-case');
 
-import { ContextData, ContractsBackend, ParamKind } from './types';
+import { ContextData, ContractsBackend, Method, ParamKind } from './types';
 import { utils } from './utils';
 
 const ABI_TYPE_CONSTRUCTOR = 'constructor';
@@ -83,7 +83,6 @@ function writeOutputFile(name: string, renderedTsCode: string): void {
 
 Handlebars.registerHelper('parameterType', utils.solTypeToTsType.bind(utils, ParamKind.Input, args.backend));
 Handlebars.registerHelper('returnType', utils.solTypeToTsType.bind(utils, ParamKind.Output, args.backend));
-
 if (args.partials) {
     registerPartials(args.partials);
 }
@@ -126,11 +125,12 @@ for (const abiFileName of abiFileNames) {
     }
 
     const methodAbis = ABI.filter((abi: AbiDefinition) => abi.type === ABI_TYPE_METHOD) as MethodAbi[];
-    const methodsData = _.map(methodAbis, methodAbi => {
+    const sanitizedMethodAbis = abiUtils.renameOverloadedMethods(methodAbis) as MethodAbi[];
-        _.map(methodAbi.inputs, (input, i: number) => {
+    const methodsData = _.map(methodAbis, (methodAbi, methodAbiIndex: number) => {
+        _.forEach(methodAbi.inputs, (input, inputIndex: number) => {
             if (_.isEmpty(input.name)) {
                 // Auto-generated getters don't have parameter names
-                input.name = `index_${i}`;
+                input.name = `index_${inputIndex}`;
             }
         });
         // This will make templates simpler
@@ -138,6 +138,8 @@ for (const abiFileName of abiFileNames) {
             ...methodAbi,
             singleReturnValue: methodAbi.outputs.length === 1,
             hasReturnValue: methodAbi.outputs.length !== 0,
+            tsName: sanitizedMethodAbis[methodAbiIndex].name,
+            functionSignature: abiUtils.getFunctionSignature(methodAbi),
         };
         return methodData;
     });

packages/abi-gen/src/types.ts

@@ -5,13 +5,6 @@ export enum ParamKind {
     Output = 'output',
 }
 
-export enum AbiType {
-    Function = 'function',
-    Constructor = 'constructor',
-    Event = 'event',
-    Fallback = 'fallback',
-}
-
 export enum ContractsBackend {
     Web3 = 'web3',
     Ethers = 'ethers',
@@ -20,6 +13,8 @@ export enum ContractsBackend {
 export interface Method extends MethodAbi {
     singleReturnValue: boolean;
     hasReturnValue: boolean;
+    tsName: string;
+    functionSignature: string;
 }
 
 export interface ContextData {

packages/abi-gen/src/utils.ts

@@ -1,9 +1,9 @@
-import { ConstructorAbi, DataItem } from '@0xproject/types';
+import { AbiType, ConstructorAbi, DataItem } from '@0xproject/types';
 import * as fs from 'fs';
 import * as _ from 'lodash';
 import * as path from 'path';
 
-import { AbiType, ContractsBackend, ParamKind } from './types';
+import { ContractsBackend, ParamKind } from './types';
 
 export const utils = {
     solTypeToTsType(paramKind: ParamKind, backend: ContractsBackend, solType: string, components?: DataItem[]): string {

packages/base-contract/src/index.ts

@@ -1,13 +1,26 @@
-import { ContractAbi, DataItem, Provider, TxData, TxDataPayable } from '@0xproject/types';
+import {
-import { BigNumber } from '@0xproject/utils';
+    AbiDefinition,
+    AbiType,
+    ContractAbi,
+    DataItem,
+    MethodAbi,
+    Provider,
+    TxData,
+    TxDataPayable,
+} from '@0xproject/types';
+import { abiUtils, BigNumber } from '@0xproject/utils';
 import { Web3Wrapper } from '@0xproject/web3-wrapper';
 import * as ethersContracts from 'ethers-contracts';
 import * as _ from 'lodash';
 
 import { formatABIDataItem } from './utils';
 
+export interface EthersInterfaceByFunctionSignature {
+    [key: string]: ethersContracts.Interface;
+}
+
 export class BaseContract {
-    protected _ethersInterface: ethersContracts.Interface;
+    protected _ethersInterfacesByFunctionSignature: EthersInterfaceByFunctionSignature;
     protected _web3Wrapper: Web3Wrapper;
     public abi: ContractAbi;
     public address: string;
@@ -49,10 +62,37 @@ export class BaseContract {
         }
         return txDataWithDefaults;
     }
+    protected _lookupEthersInterface(functionSignature: string): ethersContracts.Interface {
+        const ethersInterface = this._ethersInterfacesByFunctionSignature[functionSignature];
+        if (_.isUndefined(ethersInterface)) {
+            throw new Error(`Failed to lookup method with function signature '${functionSignature}'`);
+        }
+        return ethersInterface;
+    }
+    protected _lookupAbi(functionSignature: string): MethodAbi {
+        const methodAbi = _.find(this.abi, (abiDefinition: AbiDefinition) => {
+            if (abiDefinition.type !== AbiType.Function) {
+                return false;
+            }
+            const abiFunctionSignature = abiUtils.getFunctionSignature(abiDefinition);
+            if (abiFunctionSignature === functionSignature) {
+                return true;
+            }
+            return false;
+        }) as MethodAbi;
+        return methodAbi;
+    }
     constructor(abi: ContractAbi, address: string, provider: Provider, defaults?: Partial<TxData>) {
         this._web3Wrapper = new Web3Wrapper(provider, defaults);
         this.abi = abi;
         this.address = address;
-        this._ethersInterface = new ethersContracts.Interface(abi);
+        const methodAbis = this.abi.filter(
+            (abiDefinition: AbiDefinition) => abiDefinition.type === AbiType.Function,
+        ) as MethodAbi[];
+        this._ethersInterfacesByFunctionSignature = {};
+        _.each(methodAbis, methodAbi => {
+            const functionSignature = abiUtils.getFunctionSignature(methodAbi);
+            this._ethersInterfacesByFunctionSignature[functionSignature] = new ethersContracts.Interface([methodAbi]);
+        });
     }
 }

packages/contract_templates/contract.handlebars

@@ -41,6 +41,6 @@ export class {{contractName}}Contract extends BaseContract {
 {{/each}}
     constructor(abi: ContractAbi, address: string, provider: Provider, defaults?: Partial<TxData>) {
         super(abi, address, provider, defaults);
-        classUtils.bindAll(this, ['_ethersInterface', 'address', 'abi', '_web3Wrapper']);
+        classUtils.bindAll(this, ['_ethersInterfacesByFunctionSignature', 'address', 'abi', '_web3Wrapper']);
     }
 } // tslint:disable:max-file-line-count

packages/contract_templates/partials/callAsync.handlebars

@@ -5,9 +5,9 @@ async callAsync(
     defaultBlock?: BlockParam,
 ): Promise<{{> return_type outputs=outputs}}> {
     const self = this as any as {{contractName}}Contract;
-    const inputAbi = (_.find(self.abi, {name: '{{this.name}}'}) as MethodAbi).inputs;
+    const inputAbi = self._lookupAbi('{{this.functionSignature}}').inputs;
     [{{> params inputs=inputs}}] = BaseContract._formatABIDataItemList(inputAbi, [{{> params inputs=inputs}}], BaseContract._bigNumberToString.bind(self));
-    const encodedData = self._ethersInterface.functions.{{this.name}}(
+    const encodedData = self._lookupEthersInterface('{{this.functionSignature}}').functions.{{this.name}}(
         {{> params inputs=inputs}}
     ).data;
     const callDataWithDefaults = await self._applyDefaultsToTxDataAsync(

packages/contract_templates/partials/tx.handlebars

@@ -1,4 +1,4 @@
-public {{this.name}} = {
+public {{this.tsName}} = {
     async sendTransactionAsync(
     {{> typed_params inputs=inputs}}
     {{#this.payable}}
@@ -9,17 +9,17 @@ public {{this.name}} = {
     {{/this.payable}}
     ): Promise<string> {
         const self = this as any as {{contractName}}Contract;
-        const inputAbi = (_.find(self.abi, {name: '{{this.name}}'}) as MethodAbi).inputs;
+        const inputAbi = self._lookupAbi('{{this.functionSignature}}').inputs;
         [{{> params inputs=inputs}}] = BaseContract._formatABIDataItemList(inputAbi, [{{> params inputs=inputs}}], BaseContract._bigNumberToString.bind(self));
-        const encodedData = self._ethersInterface.functions.{{this.name}}(
+        const encodedData = self._lookupEthersInterface('{{this.functionSignature}}').functions.{{this.name}}(
             {{> params inputs=inputs}}
-        ).data
+        ).data;
         const txDataWithDefaults = await self._applyDefaultsToTxDataAsync(
             {
                 ...txData,
                 data: encodedData,
             },
-            self.{{this.name}}.estimateGasAsync.bind(
+            self.{{this.tsName}}.estimateGasAsync.bind(
                 self,
                 {{> params inputs=inputs}}
             ),
@@ -32,11 +32,11 @@ public {{this.name}} = {
         txData: Partial<TxData> = {},
     ): Promise<number> {
         const self = this as any as {{contractName}}Contract;
-        const inputAbi = (_.find(self.abi, {name: '{{this.name}}'}) as MethodAbi).inputs;
+        const inputAbi = self._lookupAbi('{{this.functionSignature}}').inputs;
         [{{> params inputs=inputs}}] = BaseContract._formatABIDataItemList(inputAbi, [{{> params inputs=inputs}}], BaseContract._bigNumberToString.bind(this));
-        const encodedData = self._ethersInterface.functions.{{this.name}}(
+        const encodedData = self._lookupEthersInterface('{{this.functionSignature}}').functions.{{this.name}}(
             {{> params inputs=inputs}}
-        ).data
+        ).data;
         const txDataWithDefaults = await self._applyDefaultsToTxDataAsync(
             {
                 ...txData,
@@ -50,11 +50,11 @@ public {{this.name}} = {
     {{> typed_params inputs=inputs}}
     ): string {
         const self = this as any as {{contractName}}Contract;
-        const inputAbi = (_.find(self.abi, {name: '{{this.name}}'}) as MethodAbi).inputs;
+        const inputAbi = self._lookupAbi('{{this.functionSignature}}').inputs;
         [{{> params inputs=inputs}}] = BaseContract._formatABIDataItemList(inputAbi, [{{> params inputs=inputs}}], BaseContract._bigNumberToString.bind(self));
-        const abiEncodedTransactionData = self._ethersInterface.functions.{{this.name}}(
+        const abiEncodedTransactionData = self._lookupEthersInterface('{{this.name}}').functions.{{this.name}}(
             {{> params inputs=inputs}}
-        ).data
+        ).data;
         return abiEncodedTransactionData;
     },
     {{> callAsync}}

packages/deployer/package.json

@@ -53,6 +53,7 @@
         "@types/require-from-string": "^1.2.0",
         "@types/semver": "^5.5.0",
         "chai": "^4.0.1",
+        "chai-as-promised": "^7.1.0",
         "copyfiles": "^1.2.0",
         "dirty-chai": "^2.0.1",
         "mocha": "^4.0.1",

packages/deployer/src/utils/contract.ts

@@ -1,11 +1,9 @@
 import { schemas, SchemaValidator } from '@0xproject/json-schemas';
-import { ContractAbi, EventAbi, FunctionAbi, MethodAbi, TxData } from '@0xproject/types';
+import { AbiType, ContractAbi, EventAbi, FunctionAbi, MethodAbi, TxData } from '@0xproject/types';
 import { promisify } from '@0xproject/utils';
 import * as _ from 'lodash';
 import * as Web3 from 'web3';
 
-import { AbiType } from './types';
-
 export class Contract implements Web3.ContractInstance {
     public address: string;
     public abi: ContractAbi;

packages/deployer/src/utils/encoder.ts

@@ -1,9 +1,7 @@
-import { AbiDefinition, ContractAbi, DataItem } from '@0xproject/types';
+import { AbiDefinition, AbiType, ContractAbi, DataItem } from '@0xproject/types';
 import * as _ from 'lodash';
 import * as web3Abi from 'web3-eth-abi';
 
-import { AbiType } from './types';
-
 export const encoder = {
     encodeConstructorArgsFromAbi(args: any[], abi: ContractAbi): string {
         const constructorTypes: string[] = [];

packages/metacoin/artifacts/Metacoin.json

@@ -3,10 +3,49 @@
     "networks": {
         "50": {
             "solc_version": "0.4.21",
-            "keccak256": "0x2c3aa2e9dbef58abf57cecc148464d0852a83d7f30bbd2066f2a13b8bd3b1dd0",
+            "keccak256": "0x85fb29ea6c21adcf07f754b2ad06482dd6fcd62d31935e36041b4d064c6a038e",
-            "source_tree_hash": "0x2c3aa2e9dbef58abf57cecc148464d0852a83d7f30bbd2066f2a13b8bd3b1dd0",
+            "source_tree_hash": "0x85fb29ea6c21adcf07f754b2ad06482dd6fcd62d31935e36041b4d064c6a038e",
             "optimizer_enabled": false,
             "abi": [
+                {
+                    "constant": false,
+                    "inputs": [
+                        {
+                            "components": [
+                                {
+                                    "components": [
+                                        {
+                                            "name": "to",
+                                            "type": "address"
+                                        },
+                                        {
+                                            "name": "amount",
+                                            "type": "uint256"
+                                        }
+                                    ],
+                                    "name": "transferData",
+                                    "type": "tuple"
+                                },
+                                {
+                                    "name": "callback",
+                                    "type": "uint32"
+                                }
+                            ],
+                            "name": "nestedTransferData",
+                            "type": "tuple"
+                        }
+                    ],
+                    "name": "transfer",
+                    "outputs": [
+                        {
+                            "name": "",
+                            "type": "int256"
+                        }
+                    ],
+                    "payable": false,
+                    "stateMutability": "nonpayable",
+                    "type": "function"
+                },
                 {
                     "constant": true,
                     "inputs": [
@@ -55,6 +94,39 @@
                     "stateMutability": "nonpayable",
                     "type": "function"
                 },
+                {
+                    "constant": false,
+                    "inputs": [
+                        {
+                            "components": [
+                                {
+                                    "name": "to",
+                                    "type": "address"
+                                },
+                                {
+                                    "name": "amount",
+                                    "type": "uint256"
+                                }
+                            ],
+                            "name": "transferData",
+                            "type": "tuple"
+                        },
+                        {
+                            "name": "callback",
+                            "type": "uint32"
+                        }
+                    ],
+                    "name": "transfer",
+                    "outputs": [
+                        {
+                            "name": "",
+                            "type": "int256"
+                        }
+                    ],
+                    "payable": false,
+                    "stateMutability": "nonpayable",
+                    "type": "function"
+                },
                 {
                     "inputs": [],
                     "payable": false,
@@ -84,15 +156,14 @@
                     "type": "event"
                 }
             ],
-            "bytecode":
+            "bytecode": "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",
-                "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",
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+            "sources": [
-            "source_map_runtime":
+                "Metacoin.sol"
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+            ]
-            "sources": ["Metacoin.sol"]
         }
     }
-}
+}

packages/metacoin/contracts/Metacoin.sol

@@ -11,6 +11,11 @@ contract Metacoin {
         uint256 amount;
     }
 
+    struct NestedTransferData {
+        TransferData transferData;
+        uint32 callback;
+    }
+
     function Metacoin() public {
         balances[msg.sender] = 10000;
     }
@@ -22,4 +27,14 @@ contract Metacoin {
         Transfer(msg.sender, transferData.to, transferData.amount);
         return true;
     }
+
+    function transfer(TransferData transferData, uint32 callback) public returns (int) {
+        transfer(transferData);
+        return callback;
+    }
+
+    function transfer(NestedTransferData nestedTransferData) public returns (int) {
+        return transfer(nestedTransferData.transferData, nestedTransferData.callback);
+    }
+
 }

packages/metacoin/test/metacoin_test.ts

@@ -36,12 +36,12 @@ describe('Metacoin', () => {
         });
     });
     describe('#transfer', () => {
-        it(`should successfully transfer tokens`, async () => {
+        it(`should successfully transfer tokens (via transfer1)`, async () => {
             const ZERO_ADDRESS = '0x0000000000000000000000000000000000000000';
             const amount = INITIAL_BALANCE.div(2);
             const oldBalance = await metacoin.balances.callAsync(ZERO_ADDRESS);
             expect(oldBalance).to.be.bignumber.equal(0);
-            const txHash = await metacoin.transfer.sendTransactionAsync(
+            const txHash = await metacoin.transfer1.sendTransactionAsync(
                 {
                     to: ZERO_ADDRESS,
                     amount,
@@ -58,5 +58,57 @@ describe('Metacoin', () => {
             const newBalance = await metacoin.balances.callAsync(ZERO_ADDRESS);
             expect(newBalance).to.be.bignumber.equal(amount);
         });
+
+        it(`should successfully transfer tokens (via transfer2)`, async () => {
+            const ZERO_ADDRESS = '0x0000000000000000000000000000000000000000';
+            const amount = INITIAL_BALANCE.div(2);
+            const oldBalance = await metacoin.balances.callAsync(ZERO_ADDRESS);
+            expect(oldBalance).to.be.bignumber.equal(0);
+            const callback = 59;
+            const txHash = await metacoin.transfer2.sendTransactionAsync(
+                {
+                    to: ZERO_ADDRESS,
+                    amount,
+                },
+                callback,
+                { from: devConstants.TESTRPC_FIRST_ADDRESS },
+            );
+            const txReceipt = await web3Wrapper.awaitTransactionMinedAsync(txHash);
+            const transferLogs = txReceipt.logs[0] as LogWithDecodedArgs<TransferContractEventArgs>;
+            expect(transferLogs.args).to.be.deep.equal({
+                _to: ZERO_ADDRESS,
+                _from: devConstants.TESTRPC_FIRST_ADDRESS,
+                _value: amount,
+            });
+            const newBalance = await metacoin.balances.callAsync(ZERO_ADDRESS);
+            expect(newBalance).to.be.bignumber.equal(amount);
+        });
+
+        it(`should successfully transfer tokens (via transfer3)`, async () => {
+            const ZERO_ADDRESS = '0x0000000000000000000000000000000000000000';
+            const amount = INITIAL_BALANCE.div(2);
+            const oldBalance = await metacoin.balances.callAsync(ZERO_ADDRESS);
+            expect(oldBalance).to.be.bignumber.equal(0);
+            const callback = 59;
+            const txHash = await metacoin.transfer3.sendTransactionAsync(
+                {
+                    transferData: {
+                        to: ZERO_ADDRESS,
+                        amount,
+                    },
+                    callback,
+                },
+                { from: devConstants.TESTRPC_FIRST_ADDRESS },
+            );
+            const txReceipt = await web3Wrapper.awaitTransactionMinedAsync(txHash);
+            const transferLogs = txReceipt.logs[0] as LogWithDecodedArgs<TransferContractEventArgs>;
+            expect(transferLogs.args).to.be.deep.equal({
+                _to: ZERO_ADDRESS,
+                _from: devConstants.TESTRPC_FIRST_ADDRESS,
+                _value: amount,
+            });
+            const newBalance = await metacoin.balances.callAsync(ZERO_ADDRESS);
+            expect(newBalance).to.be.bignumber.equal(amount);
+        });
     });
 });

packages/utils/src/abi_utils.ts

@@ -0,0 +1,71 @@
+import { AbiDefinition, AbiType, ConstructorAbi, ContractAbi, DataItem, MethodAbi } from '@0xproject/types';
+import * as _ from 'lodash';
+
+export const abiUtils = {
+    parseFunctionParam(param: DataItem): string {
+        if (param.type === 'tuple') {
+            // Parse out tuple types into {type_1, type_2, ..., type_N}
+            const tupleComponents = param.components;
+            const paramString = _.map(tupleComponents, component => this.parseFunctionParam(component));
+            const tupleParamString = `{${paramString}}`;
+            return tupleParamString;
+        }
+        return param.type;
+    },
+    getFunctionSignature(methodAbi: MethodAbi): string {
+        const functionName = methodAbi.name;
+        const parameterTypeList = _.map(methodAbi.inputs, (param: DataItem) => this.parseFunctionParam(param));
+        const functionSignature = `${functionName}(${parameterTypeList})`;
+        return functionSignature;
+    },
+    /**
+     * Solidity supports function overloading whereas TypeScript does not.
+     * See: https://solidity.readthedocs.io/en/v0.4.21/contracts.html?highlight=overload#function-overloading
+     * In order to support overloaded functions, we suffix overloaded function names with an index.
+     * This index should be deterministic, regardless of function ordering within the smart contract. To do so,
+     * we assign indexes based on the alphabetical order of function signatures.
+     *
+     * E.g
+     * ['f(uint)', 'f(uint,byte32)']
+     * Should always be renamed to:
+     * ['f1(uint)', 'f2(uint,byte32)']
+     * Regardless of the order in which these these overloaded functions are declared within the contract ABI.
+     */
+    renameOverloadedMethods(inputContractAbi: ContractAbi): ContractAbi {
+        const contractAbi = _.cloneDeep(inputContractAbi);
+        const methodAbis = contractAbi.filter((abi: AbiDefinition) => abi.type === AbiType.Function) as MethodAbi[];
+        // Sort method Abis into alphabetical order, by function signature
+        const methodAbisOrdered = _.sortBy(methodAbis, [
+            (methodAbi: MethodAbi) => {
+                const functionSignature = this.getFunctionSignature(methodAbi);
+                return functionSignature;
+            },
+        ]);
+        // Group method Abis by name (overloaded methods will be grouped together, in alphabetical order)
+        const methodAbisByName: { [key: string]: MethodAbi[] } = {};
+        _.each(methodAbisOrdered, methodAbi => {
+            (methodAbisByName[methodAbi.name] || (methodAbisByName[methodAbi.name] = [])).push(methodAbi);
+        });
+        // Rename overloaded methods to overloadedMethodName1, overloadedMethodName2, ...
+        _.each(methodAbisByName, methodAbisWithSameName => {
+            _.each(methodAbisWithSameName, (methodAbi, i: number) => {
+                if (methodAbisWithSameName.length > 1) {
+                    const overloadedMethodId = i + 1;
+                    const sanitizedMethodName = `${methodAbi.name}${overloadedMethodId}`;
+                    const indexOfExistingAbiWithSanitizedMethodNameIfExists = _.findIndex(
+                        methodAbis,
+                        currentMethodAbi => currentMethodAbi.name === sanitizedMethodName,
+                    );
+                    if (indexOfExistingAbiWithSanitizedMethodNameIfExists >= 0) {
+                        const methodName = methodAbi.name;
+                        throw new Error(
+                            `Failed to rename overloaded method '${methodName}' to '${sanitizedMethodName}'. A method with this name already exists.`,
+                        );
+                    }
+                    methodAbi.name = sanitizedMethodName;
+                }
+            });
+        });
+        return contractAbi;
+    },
+};

packages/utils/src/index.ts

@@ -5,4 +5,5 @@ export { intervalUtils } from './interval_utils';
 export { BigNumber } from './configured_bignumber';
 export { AbiDecoder } from './abi_decoder';
 export { logUtils } from './log_utils';
+export { abiUtils } from './abi_utils';
 export { NULL_BYTES } from './constants';

yarn.lock

@@ -6,6 +6,41 @@
   version "0.3.9"
   resolved "https://registry.yarnpkg.com/8fold-marked/-/8fold-marked-0.3.9.tgz#bb89c645612f8ccfaffac1ca6e3c11f168c9cf59"
 
+"@0xproject/dev-utils@^0.2.1":
+  version "0.2.1"
+  resolved "https://registry.yarnpkg.com/@0xproject/dev-utils/-/dev-utils-0.2.1.tgz#a54465376fd7c8cf58781b02b1790d74fb51e91b"
+  dependencies:
+    "@0xproject/subproviders" "^0.7.0"
+    "@0xproject/types" "^0.3.1"
+    "@0xproject/utils" "^0.4.1"
+    ethereumjs-util "^5.1.2"
+    lodash "^4.17.4"
+    request-promise-native "^1.0.5"
+    web3 "^0.20.0"
+    web3-provider-engine "^13.0.1"
+
+"@0xproject/subproviders@^0.7.0":
+  version "0.7.0"
+  resolved "https://registry.yarnpkg.com/@0xproject/subproviders/-/subproviders-0.7.0.tgz#ce3379a85649773e5c08f5fc3239e8ed07f13361"
+  dependencies:
+    "@0xproject/assert" "^0.2.0"
+    "@0xproject/types" "^0.3.1"
+    "@0xproject/utils" "^0.4.1"
+    "@ledgerhq/hw-app-eth" "^4.3.0"
+    "@ledgerhq/hw-transport-u2f" "^4.3.0"
+    bn.js "^4.11.8"
+    es6-promisify "^5.0.0"
+    ethereumjs-tx "^1.3.3"
+    ethereumjs-util "^5.1.1"
+    hdkey "^0.7.1"
+    lodash "^4.17.4"
+    semaphore-async-await "^1.5.1"
+    web3 "^0.20.0"
+    web3-provider-engine "^13.0.1"
+    web3-typescript-typings "^0.10.0"
+  optionalDependencies:
+    "@ledgerhq/hw-transport-node-hid" "^4.3.0"
+
 "@0xproject/tslint-config@0.4.13":
   version "0.4.13"
   resolved "https://registry.yarnpkg.com/@0xproject/tslint-config/-/tslint-config-0.4.13.tgz#98c71c5ae5e80315a23eda0134cc9f6f4438cac2"
@@ -15,6 +50,40 @@
     tslint-eslint-rules "^4.1.1"
     tslint-react "^3.2.0"
 
+"@0xproject/types@^0.3.1":
+  version "0.3.1"
+  resolved "https://registry.yarnpkg.com/@0xproject/types/-/types-0.3.1.tgz#9a75be6d3a2d41b7ecbd9105c3fdc09f3e3ec297"
+  dependencies:
+    bignumber.js "~4.1.0"
+    web3 "^0.20.0"
+    web3-typescript-typings "^0.10.0"
+
+"@0xproject/types@^0.4.2":
+  version "0.4.2"
+  resolved "https://registry.yarnpkg.com/@0xproject/types/-/types-0.4.2.tgz#83d6ebef60f41e6209acb2656b1d68ff79367ca5"
+  dependencies:
+    bignumber.js "~4.1.0"
+
+"@0xproject/typescript-typings@^0.0.2":
+  version "0.0.2"
+  resolved "https://registry.yarnpkg.com/@0xproject/typescript-typings/-/typescript-typings-0.0.2.tgz#b549ea3c81ce2d81b99f05583bdf7c411a3ca90c"
+  dependencies:
+    "@0xproject/types" "^0.4.2"
+    bignumber.js "~4.1.0"
+
+"@0xproject/utils@^0.4.1":
+  version "0.4.4"
+  resolved "https://registry.yarnpkg.com/@0xproject/utils/-/utils-0.4.4.tgz#bce4f7a5a46570a69911f4a4ade5d49016330087"
+  dependencies:
+    "@0xproject/types" "^0.4.2"
+    "@0xproject/typescript-typings" "^0.0.2"
+    "@types/node" "^8.0.53"
+    bignumber.js "~4.1.0"
+    ethers-contracts "^2.2.1"
+    js-sha3 "^0.7.0"
+    lodash "^4.17.4"
+    web3 "^0.20.0"
+
 "@ledgerhq/hw-app-eth@^4.3.0":
   version "4.7.3"
   resolved "https://registry.yarnpkg.com/@ledgerhq/hw-app-eth/-/hw-app-eth-4.7.3.tgz#d352e19658ae296532e522c53c8ec2a1a77b64e5"
@@ -3584,7 +3653,7 @@ ethereumjs-util@^4.0.1, ethereumjs-util@^4.3.0, ethereumjs-util@^4.4.0:
     rlp "^2.0.0"
     secp256k1 "^3.0.1"
 
-ethereumjs-util@^5.0.0, ethereumjs-util@^5.0.1, ethereumjs-util@^5.1.1, ethereumjs-util@^5.1.3, ethereumjs-util@^5.1.5:
+ethereumjs-util@^5.0.0, ethereumjs-util@^5.0.1, ethereumjs-util@^5.1.1, ethereumjs-util@^5.1.2, ethereumjs-util@^5.1.3, ethereumjs-util@^5.1.5:
   version "5.1.5"
   resolved "https://registry.yarnpkg.com/ethereumjs-util/-/ethereumjs-util-5.1.5.tgz#2f02575852627d45622426f25ee4a0b5f377f27a"
   dependencies:
@@ -8919,6 +8988,20 @@ request-ip@~1.2.3:
   version "1.2.3"
   resolved "https://registry.yarnpkg.com/request-ip/-/request-ip-1.2.3.tgz#66988f0e22406ec4af630d19b573fe4b447c3b49"
 
+request-promise-core@1.1.1:
+  version "1.1.1"
+  resolved "https://registry.yarnpkg.com/request-promise-core/-/request-promise-core-1.1.1.tgz#3eee00b2c5aa83239cfb04c5700da36f81cd08b6"
+  dependencies:
+    lodash "^4.13.1"
+
+request-promise-native@^1.0.5:
+  version "1.0.5"
+  resolved "https://registry.yarnpkg.com/request-promise-native/-/request-promise-native-1.0.5.tgz#5281770f68e0c9719e5163fd3fab482215f4fda5"
+  dependencies:
+    request-promise-core "1.1.1"
+    stealthy-require "^1.1.0"
+    tough-cookie ">=2.3.3"
+
 request@2.81.0:
   version "2.81.0"
   resolved "https://registry.yarnpkg.com/request/-/request-2.81.0.tgz#c6928946a0e06c5f8d6f8a9333469ffda46298a0"
@@ -9804,6 +9887,10 @@ static-extend@^0.1.1:
   version "1.4.0"
   resolved "https://registry.yarnpkg.com/statuses/-/statuses-1.4.0.tgz#bb73d446da2796106efcc1b601a253d6c46bd087"
 
+stealthy-require@^1.1.0:
+  version "1.1.1"
+  resolved "https://registry.yarnpkg.com/stealthy-require/-/stealthy-require-1.1.1.tgz#35b09875b4ff49f26a777e509b3090a3226bf24b"
+
 stream-browserify@^2.0.1:
   version "2.0.1"
   resolved "https://registry.yarnpkg.com/stream-browserify/-/stream-browserify-2.0.1.tgz#66266ee5f9bdb9940a4e4514cafb43bb71e5c9db"
@@ -10376,7 +10463,7 @@ touch@^3.1.0:
   dependencies:
     nopt "~1.0.10"
 
-tough-cookie@~2.3.0, tough-cookie@~2.3.3:
+tough-cookie@>=2.3.3, tough-cookie@~2.3.0, tough-cookie@~2.3.3:
   version "2.3.4"
   resolved "https://registry.yarnpkg.com/tough-cookie/-/tough-cookie-2.3.4.tgz#ec60cee38ac675063ffc97a5c18970578ee83655"
   dependencies:
@@ -11331,7 +11418,7 @@ web3-shh@1.0.0-beta.33:
     web3-core-subscriptions "1.0.0-beta.33"
     web3-net "1.0.0-beta.33"
 
-web3-typescript-typings@^0.10.2:
+web3-typescript-typings@^0.10.0, web3-typescript-typings@^0.10.2:
   version "0.10.2"
   resolved "https://registry.yarnpkg.com/web3-typescript-typings/-/web3-typescript-typings-0.10.2.tgz#a9903815d2a8a0dbd73fd5db374070de0bd30497"
   dependencies: