Add to context data

packages/abi-gen/CHANGELOG.md

@@ -4,6 +4,7 @@
 
     * Add a `backend` parameter that allows you to specify your backend (web3 or ethers). Ethers auto-converts small ints to numbers (#413)
     * Add support for ABIv2 (#413)
+    * Add `hasReturnValue` to context data (#413)
 
 ## v0.2.1 - _February 9, 2018_
 

packages/abi-gen/src/index.ts

@@ -136,6 +136,7 @@ for (const abiFileName of abiFileNames) {
         const methodData = {
             ...methodAbi,
             singleReturnValue: methodAbi.outputs.length === 1,
+            hasReturnValue: methodAbi.outputs.length !== 0,
         };
         return methodData;
     });

packages/abi-gen/src/types.ts

@@ -19,6 +19,7 @@ export enum ContractsBackend {
 
 export interface Method extends Web3.MethodAbi {
     singleReturnValue: boolean;
+    hasReturnValue: boolean;
 }
 
 export interface ContextData {