Summary:
Explain the **motivation** for making this change. What existing problem does the pull request solve?
See https://github.com/facebook/react-native/issues/10506. A native `NSError` with `NSUnderlyingErrorKey` set causes a JSON stringify error from the websocket dispatcher if remote debugging is enabled.
**Test plan (required)**
I'm not familiar with the react native testing framework. Happy to add a test for this if someone can point me to where this part of the codebase is exercised :)
I did some spot checks with nil user dictionaries and nil underlying errors here. The case that this solves is testable using https://github.com/superseriouscompany/react-native-error-repro, specifically:
```objective-c
NSError *underlyingError = [NSError errorWithDomain:@"underlyingDomain" code:421 userInfo:nil];
NSError *err = [NSError errorWithDomain:@"domain" code:68 userInfo:@{@"NSUnderlyingError": underlyingError}];
reject(@"foo", @"bar", err);
```
Closes https://github.com/facebook/react-native/pull/10507
Differential Revision: D4080802
Pulled By: lacker
fbshipit-source-id: 93a41d9e9a710e406a6ccac214a5617271b4bede
Summary:
public
NSJSONSerialization throws an exception when it encounters bad JSON data, including NaN values, which may not be a programming error.
This diff adds code to catch those exceptions and convert to an error. Also, if no error handling is in place, RCTJSONStringify will now display a redbox, and attempt to recover by sanitizing the JSON data and retrying.
Reviewed By: javache
Differential Revision: D2854778
fb-gh-sync-id: 18e6990af0d91083496d6a0b75c31a94ed9454a5
Summary:
React Native will now use JSONKit if it's already available in the project, otherwise it will fall back to using NSJSONSerialization as before. This provides a small performance boost to JSON parsing in some cases.
Pieter De Baets
Neil Sarkar
Nick Lockwood