Summary:
public
This diff replaces the RegEx module method parser with a handwritten recursive descent parser that's faster and easier to maintain.
The new parser is ~8 times faster when tested on the UIManager.managerChildren() method, and uses ~1/10 as much RAM.
The new parser also supports lightweight generics, and is more tolerant of white space.
(This means that you now can – and should – use types like `NSArray<NSString *> *` for your exported properties and method arguments, instead of `NSStringArray`).
Reviewed By: jspahrsummers
Differential Revision: D2736636
fb-gh-sync-id: f6a11431935fa8acc8ac36f3471032ec9a1c8490
Summary:
Currently, the system for mapping JS event handlers to blocks is quite clean on the JS side, but is clunky on the native side. The event property is passed as a boolean, which can then be checked by the native side, and if true, the native side is supposed to send an event via the event dispatcher.
This diff adds the facility to declare the property as a block instead. This means that the event side can simply call the block, and it will automatically send the event. Because the blocks for bubbling and direct events are named differently, we can also use this to generate the event registration data and get rid of the arrays of event names.
The name of the event is inferred from the property name, which means that the property for an event called "load" must be called `onLoad` or the mapping won't work. This can be optionally remapped to a different property name on the view itself if necessary, e.g.
RCT_REMAP_VIEW_PROPERTY(onLoad, loadEventBlock, RCTDirectEventBlock)
If you don't want to use this mechanism then for now it is still possible to declare the property as a BOOL instead and use the old mechanism (this approach is now deprecated however, and may eventually be removed altogether).
Summary:
Fixes#534:
```jsx
<SegmentedControlIOS
tintColor="#ff0000"
values={['One', 'Two', 'Three', 'Four']}
selectedtIndex={0}
momentary={false}
enabled={true}
onValueChange={ (value) => console.log(value) } />
```
This only supports string-based segments, not images. Also doesn't support full customization (no separator images etc); I figure this is a good MVP to lock-down a basic API
I also included a snapshot test case, but the images keep coming out funky. When I look at the sim, I see that the text labels show up for the selected segment, but the snapshot keeps coming out with no text on those segments. I tried forcing a delay, but same result. Is that explainable?
Obviously happy to change anything about the API, code-style nitpicks, etc
Closes https://github.com/facebook/react-native/pull/564
Github Author: Clay Allsopp <clay.allsopp@gmail.com>
Test Plan: Imported from GitHub, without a `Test Plan:` line.
Nick Lockwood
Clay Allsopp
