From 9a162e5d5c245fd770b8ff91502da9ba5718e6b2 Mon Sep 17 00:00:00 2001
From: Lawrence Forman <lawrence@0xproject.com>
Date: Tue, 2 Apr 2019 17:51:09 -0400
Subject: [PATCH] Add `RichRevertAbi` to `etherem-types`

---
 packages/ethereum-types/CHANGELOG.json | 9 +++++++++
 packages/ethereum-types/src/index.ts   | 8 +++++++-
 2 files changed, 16 insertions(+), 1 deletion(-)

diff --git a/packages/ethereum-types/CHANGELOG.json b/packages/ethereum-types/CHANGELOG.json
index ebdf3668ee..6fca109257 100644
--- a/packages/ethereum-types/CHANGELOG.json
+++ b/packages/ethereum-types/CHANGELOG.json
@@ -1,4 +1,13 @@
 [
+    {
+        "version": "2.2.0",
+        "changes": [
+            {
+                "note": "Add `RichRevertAbi` interface as part of `AbiDefinition` types",
+                "pr": 1761
+            }
+        ]
+    },
     {
         "version": "2.1.4",
         "changes": [
diff --git a/packages/ethereum-types/src/index.ts b/packages/ethereum-types/src/index.ts
index e49c945dd4..5a4624a96a 100644
--- a/packages/ethereum-types/src/index.ts
+++ b/packages/ethereum-types/src/index.ts
@@ -77,7 +77,7 @@ export interface EIP1193Provider {
 
 export type ContractAbi = AbiDefinition[];
 
-export type AbiDefinition = FunctionAbi | EventAbi;
+export type AbiDefinition = FunctionAbi | EventAbi | RichRevertAbi;
 
 export type FunctionAbi = MethodAbi | ConstructorAbi | FallbackAbi;
 
@@ -116,6 +116,12 @@ export interface EventParameter extends DataItem {
     indexed: boolean;
 }
 
+export interface RichRevertAbi {
+    type: 'error';
+    name: string;
+    arguments?: DataItem[];
+}
+
 export interface EventAbi {
     // Ideally this would be set to: `'event'` but then TS complains when artifacts are loaded
     // from JSON files, and this value has type `string` not type `'event'`