From 3c4f383e95ca335b32755e8715fb2d19cd39adee Mon Sep 17 00:00:00 2001
From: James Ide <ide@expo.io>
Date: Thu, 13 Sep 2018 17:56:35 -0700
Subject: [PATCH] [react-native] Add types for devtools modules

Adds type declarations for `parseErrorStack` and `symbolicateStackTrace`, which are used to process caught errors.
---
 types/react-native/Devtools.d.ts | 22 ++++++++++++++++++++++
 types/react-native/index.d.ts    |  1 +
 2 files changed, 23 insertions(+)
 create mode 100644 types/react-native/Devtools.d.ts

diff --git a/types/react-native/Devtools.d.ts b/types/react-native/Devtools.d.ts
new file mode 100644
index 0000000000..18f17540b9
--- /dev/null
+++ b/types/react-native/Devtools.d.ts
@@ -0,0 +1,22 @@
+declare module 'react-native/Libraries/Core/Devtools/parseErrorStack' {
+    export type StackFrame = {
+        file: string;
+        methodName: string;
+        lineNumber: number;
+        column: number | null;
+    };
+
+    export interface ExtendedError extends Error {
+        framesToPop?: number;
+    }
+
+    export default function parseErrorStack(error: ExtendedError): StackFrame[];
+}
+
+declare module 'react-native/Libraries/Core/Devtools/symbolicateStackTrace' {
+    import { StackFrame } from 'react-native/Libraries/Core/Devtools/parseErrorStack';
+
+    export default function symbolicateStackTrace(
+        stack: ReadonlyArray<StackFrame>
+    ): Promise<StackFrame[]>;
+}
diff --git a/types/react-native/index.d.ts b/types/react-native/index.d.ts
index ad8abe57fd..0e01132d9e 100644
--- a/types/react-native/index.d.ts
+++ b/types/react-native/index.d.ts
@@ -30,6 +30,7 @@
 /// <reference path="globals.d.ts" />
 /// <reference path="legacy-properties.d.ts" />
 /// <reference path="BatchedBridge.d.ts" />
+/// <reference path="Devtools.d.ts" />
 
 import * as React from 'react';