From d8d42c7310acd90fbed53aa409ef8b557dc9ec00 Mon Sep 17 00:00:00 2001
From: zhongwuzw <zhongwuzw@qq.com>
Date: Sun, 3 Mar 2019 20:01:22 -0800
Subject: [PATCH] Added support of __nullable and __nonnull for module exported
 method signature (#23731)

Summary:
For the `NullabilityPostfix`, we can use `_Nullable` or `__nullable`. Please see https://developer.apple.com/swift/blog/?id=25 , and we also use it in our code.

[iOS] [Added] - Added support of __nullable and __nonnull for module exported method signature
Pull Request resolved: https://github.com/facebook/react-native/pull/23731

Differential Revision: D14298483

Pulled By: cpojer

fbshipit-source-id: 4dd3188f51be3808ea2b97ce19aa7a85ea1f4a9e
---
 React/Base/RCTModuleMethod.mm | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/React/Base/RCTModuleMethod.mm b/React/Base/RCTModuleMethod.mm
index 767e11abd41..ada62d085f0 100644
--- a/React/Base/RCTModuleMethod.mm
+++ b/React/Base/RCTModuleMethod.mm
@@ -106,9 +106,11 @@ static RCTNullability RCTParseNullability(const char **input)
 
 static RCTNullability RCTParseNullabilityPostfix(const char **input)
 {
-  if (RCTReadString(input, "_Nullable")) {
+  if (RCTReadString(input, "_Nullable") ||
+      RCTReadString(input, "__nullable")) {
     return RCTNullable;
-  } else if (RCTReadString(input, "_Nonnull")) {
+  } else if (RCTReadString(input, "_Nonnull") ||
+             RCTReadString(input, "__nonnull")) {
     return RCTNonnullable;
   }
   return RCTNullabilityUnspecified;