From c72745b0b27218a2a11529a90e0789f9e1b81d69 Mon Sep 17 00:00:00 2001
From: Leonid Logvinov <logvinov.leon@gmail.com>
Date: Wed, 22 Nov 2017 13:15:48 -0600
Subject: Make zeroEx.tokenRegistry.getContractAddress non-async

---
 .../src/contract_wrappers/token_registry_wrapper.ts     | 17 ++++++++++++-----
 1 file changed, 12 insertions(+), 5 deletions(-)

(limited to 'packages')

diff --git a/packages/0x.js/src/contract_wrappers/token_registry_wrapper.ts b/packages/0x.js/src/contract_wrappers/token_registry_wrapper.ts
index 2cc5a9aa0..ae561f0d2 100644
--- a/packages/0x.js/src/contract_wrappers/token_registry_wrapper.ts
+++ b/packages/0x.js/src/contract_wrappers/token_registry_wrapper.ts
@@ -1,7 +1,7 @@
 import * as _ from 'lodash';
 import {Web3Wrapper} from '../web3_wrapper';
 import {assert} from '../utils/assert';
-import {Token, TokenRegistryContract, TokenMetadata} from '../types';
+import {Token, TokenRegistryContract, TokenMetadata, ZeroExError} from '../types';
 import {constants} from '../utils/constants';
 import {ContractWrapper} from './contract_wrapper';
 import {artifacts} from '../artifacts';
@@ -89,10 +89,17 @@ export class TokenRegistryWrapper extends ContractWrapper {
      * that the user-passed web3 provider is connected to.
      * @returns The Ethereum address of the TokenRegistry contract being used.
      */
-    public async getContractAddressAsync(): Promise<string> {
-        const tokenRegistryInstance = await this._getTokenRegistryContractAsync();
-        const tokenRegistryAddress = tokenRegistryInstance.address;
-        return tokenRegistryAddress;
+    public getContractAddress(): string {
+        const networkId = this._web3Wrapper.getNetworkId();
+        if (_.isUndefined(this._contractAddressIfExists)) {
+            const contractAddress = artifacts.TokenRegistryArtifact.networks[networkId].address;
+            if (_.isUndefined(contractAddress)) {
+                throw new Error(ZeroExError.ExchangeContractDoesNotExist);
+            }
+            return contractAddress;
+        } else {
+            return this._contractAddressIfExists;
+        }
     }
     private _createTokenFromMetadata(metadata: TokenMetadata): Token|undefined {
         if (metadata[0] === constants.NULL_ADDRESS) {
-- 
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