From 26d0ce929f8ec014514a05777093150f1eb03dd7 Mon Sep 17 00:00:00 2001
From: Pieter De Baets <pieterdb@fb.com>
Date: Thu, 28 Apr 2016 13:41:55 -0700
Subject: [PATCH] Error handling for concrete JS executor

Reviewed By: adamjernst

Differential Revision: D3235189

fb-gh-sync-id: a6d545a6b0b388c52305e2936371776d579460cd
fbshipit-source-id: a6d545a6b0b388c52305e2936371776d579460cd
---
 React/Executors/RCTJSCExecutor.h  | 8 ++++++++
 React/Executors/RCTJSCExecutor.mm | 2 +-
 2 files changed, 9 insertions(+), 1 deletion(-)

diff --git a/React/Executors/RCTJSCExecutor.h b/React/Executors/RCTJSCExecutor.h
index 997811adfa..48fd16c399 100644
--- a/React/Executors/RCTJSCExecutor.h
+++ b/React/Executors/RCTJSCExecutor.h
@@ -25,6 +25,14 @@ RCT_EXTERN NSString *const RCTJSCThreadName;
  */
 RCT_EXTERN NSString *const RCTJavaScriptContextCreatedNotification;
 
+/**
+ * Create a NSError from a JSError object.
+ *
+ * If available, the error's userInfo property will contain the JS stacktrace under
+ * the RCTJSStackTraceKey key.
+ */
+RCT_EXTERN NSError *RCTNSErrorFromJSError(JSContextRef context, JSValueRef jsError);
+
 /**
  * Uses a JavaScriptCore context as the execution engine.
  */
diff --git a/React/Executors/RCTJSCExecutor.mm b/React/Executors/RCTJSCExecutor.mm
index b12579a612..b08dde9030 100644
--- a/React/Executors/RCTJSCExecutor.mm
+++ b/React/Executors/RCTJSCExecutor.mm
@@ -144,7 +144,7 @@ static NSString *RCTJSValueToJSONString(JSContextRef context, JSValueRef value,
   return (__bridge_transfer NSString *)string;
 }
 
-static NSError *RCTNSErrorFromJSError(JSContextRef context, JSValueRef jsError)
+NSError *RCTNSErrorFromJSError(JSContextRef context, JSValueRef jsError)
 {
   NSMutableDictionary *errorInfo = [NSMutableDictionary new];