1 files changed, 4 insertions, 44 deletions

diff --git a/packages/base-contract/src/index.ts b/packages/base-contract/src/index.ts
index bfa99fac1..bba686f8b 100644
--- a/packages/base-contract/src/index.ts
+++ b/packages/base-contract/src/index.ts
@@ -1,26 +1,13 @@
-import {
-    AbiDefinition,
-    AbiType,
-    ContractAbi,
-    DataItem,
-    MethodAbi,
-    Provider,
-    TxData,
-    TxDataPayable,
-} from '@0xproject/types';
-import { abiUtils, BigNumber } from '@0xproject/utils';
+import { ContractAbi, DataItem, Provider, TxData, TxDataPayable } from '@0xproject/types';
+import { 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 _ethersInterfacesByFunctionSignature: EthersInterfaceByFunctionSignature;
+    protected _ethersInterface: ethersContracts.Interface;
     protected _web3Wrapper: Web3Wrapper;
     public abi: ContractAbi;
     public address: string;
@@ -62,37 +49,10 @@ 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;
-        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]);
-        });
+        this._ethersInterface = new ethersContracts.Interface(abi);
     }
 }