Summary:
@public
Right now the profiler shows how long the executor took on JS but doesn't show
how long each of the batched calls took, this adds a *very* high level view of JS
execution (still doesn't show properly calls dispatched with setImmediate)
Also added a global property on JS to avoid trips to Native when profiling is
disabled.
Test Plan:
Run the Profiler on any app
{F22491690}
Summary:
Wraps the setImmediate handlers in a `batchUpdates` call before they are synchronously executed at the end of the JS execution loop.
Closes https://github.com/facebook/react-native/pull/1242
Github Author: James Ide <ide@jameside.com>
Test Plan:
Added two `setImmediate` calls to `componentDidMount` in UIExplorerApp. Each handler calls `setState`, and `componentWillUpdate` logs its state. With this diff, we can see the state updates are successfully batched.
```javascript
componentDidMount() {
setImmediate(() => {
console.log('immediate 1');
this.setState({a: 1});
});
setImmediate(() => {
console.log('immediate 2');
this.setState({a: 2});
});
},
componentWillUpdate(nextProps, nextState) {
console.log('componentWillUpdate with next state.a =', nextState.a);
},
```
**Before:**
"immediate 1"
"componentWillUpdate with next state.a =", 1
"immediate 2"
"componentWillUpdate with next state.a =", 2
**After:**
"immediate 1"
"immediate 2"
"componentWillUpdate with next state.a =", 2
Addresses the batching issue in #1232. cc @vjeux @spicyj
Summary:
Adds support for JS async methods and helps guide people writing native modules w.r.t. the callbacks. With this diff, on the native side you write:
```objc
RCT_EXPORT_METHOD(getValueAsync:(NSString *)key
resolver:(RCTPromiseResolver)resolve
rejecter:(RCTPromiseRejecter)reject)
{
NSError *error = nil;
id value = [_nativeDataStore valueForKey:key error:&error];
// "resolve" and "reject" are automatically defined blocks that take
// any object (nil is OK) and an NSError, respectively
if (!error) {
resolve(value);
} else {
reject(error);
}
}
```
On the JS side, you can write:
```js
var {DemoDataStore} = require('react-native').NativeModules;
DemoDataStore.getValueAsync('sample-key').then((value) => {
console.log('Got:', value);
}, (error) => {
console.error(error);
// "error" is an Error object whose message is the NSError's description.
// The NSError's code and domain are also set, and the native trace i
Closes https://github.com/facebook/react-native/pull/1232
Github Author: James Ide <ide@jameside.com>
Test Plan: Imported from GitHub, without a `Test Plan:` line.
Andy Street
Tadeu Zagallo
Chace Liang
James Ide
Spencer Ahrens
Kevin Gozali
Marshall Roch
Christopher Chedeau