Change contract templates

packages/contracts/contract_templates/contract.handlebars

@@ -2,6 +2,7 @@
  * This file is auto-generated using abi-gen. Don't edit directly.
  * Templates can be found at https://github.com/0xProject/0x.js/tree/development/packages/abi-gen-templates.
  */
+// tslint:disable:async-suffix member-ordering
 // tslint:disable-next-line:no-unused-variable
 import { TxData, TxDataPayable } from '@0xproject/types';
 import { BigNumber, classUtils, promisify } from '@0xproject/utils';
@@ -18,7 +19,7 @@ export class {{contractName}}Contract extends BaseContract {
     {{> tx contractName=../contractName}}
     {{/this.constant}}
 {{/each}}
-    constructor(web3ContractInstance: Web3.ContractInstance, defaults: Partial<TxData>) {
+    constructor(web3ContractInstance: Web3.ContractInstance, defaults?: Partial<TxData>) {
         super(web3ContractInstance, defaults);
         classUtils.bindAll(this, ['_web3ContractInstance', '_defaults']);
     }

packages/contracts/contract_templates/partials/call.handlebars

@@ -1,15 +1,10 @@
-public {{this.name}} = {
-    async callAsync(
-    {{> typed_params inputs=inputs}}
+public async {{this.name}}(
+{{> typed_params inputs=inputs}}
     defaultBlock?: Web3.BlockParam,
-    ): Promise<{{> return_type outputs=outputs}}> {
+): Promise<{{> return_type outputs=outputs}}> {
     const self = this as {{contractName}}Contract;
-        const result = await promisify<{{> return_type outputs=outputs}}>(
-            self._web3ContractInstance.{{this.name}}.call,
-            self._web3ContractInstance,
-        )(
+    const result = await self._web3ContractInstance.{{this.name}}.call(
         {{> params inputs=inputs}}
     );
     return result;
-    },
-};
+}

packages/contracts/contract_templates/partials/return_type.handlebars

@@ -1,6 +1,10 @@
+{{#if outputs.length}}
 {{#singleReturnValue}}
 {{#returnType outputs.0.type}}{{/returnType}}
 {{/singleReturnValue}}
 {{^singleReturnValue}}
 [{{#each outputs}}{{#returnType type}}{{/returnType}}{{#unless @last}}, {{/unless}}{{/each}}]
 {{/singleReturnValue}}
+{{else}}
+void
+{{/if}}

packages/contracts/contract_templates/partials/tx.handlebars

@@ -9,43 +9,28 @@ public {{this.name}} = {
     {{/this.payable}}
     ): Promise<string> {
         const self = this as {{contractName}}Contract;
-        const txDataWithDefaults = await self._applyDefaultsToTxDataAsync(
-            txData,
-            self.{{this.name}}.estimateGasAsync.bind(
-                self,
-                {{> params inputs=inputs}}
-            ),
-        );
-        const txHash = await promisify<string>(
-            self._web3ContractInstance.{{this.name}}, self._web3ContractInstance,
-        )(
+        const txDataWithDefaults = await self._applyDefaultsToTxDataAsync(txData);
+        const txHash = await self._web3ContractInstance.{{this.name}}(
             {{> params inputs=inputs}}
             txDataWithDefaults,
         );
         return txHash;
     },
-    async estimateGasAsync(
+    async callAsync(
     {{> typed_params inputs=inputs}}
+    {{#this.payable}}
+        txData: TxDataPayable = {},
+    {{/this.payable}}
+    {{^this.payable}}
         txData: TxData = {},
-    ): Promise<number> {
+    {{/this.payable}}
+    ): Promise<{{> return_type outputs=outputs}}> {
         const self = this as {{contractName}}Contract;
-        const txDataWithDefaults = await self._applyDefaultsToTxDataAsync(
-            txData,
-        );
-        const gas = await promisify<number>(
-            self._web3ContractInstance.{{this.name}}.estimateGas, self._web3ContractInstance,
-        )(
+        const txDataWithDefaults = await self._applyDefaultsToTxDataAsync(txData);
+        const returnValue = await self._web3ContractInstance.{{this.name}}.call(
             {{> params inputs=inputs}}
             txDataWithDefaults,
         );
-        return gas;
-    },
-    getABIEncodedTransactionData(
-    {{> typed_params inputs=inputs}}
-        txData: TxData = {},
-    ): string {
-        const self = this as {{contractName}}Contract;
-        const abiEncodedTransactionData = self._web3ContractInstance.{{this.name}}.getData();
-        return abiEncodedTransactionData;
+        return returnValue;
     },
 };