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Cameron Bourke
be07435e6a
Summary:
## Context
At the moment, the codegen process does not expect any types defined in a native component (*NativeComponent.js) to be exported. For example, the `NativeProps` type may be defined as:
```
// RCTSegmentedControlNativeComponent.js
type NativeProps = $ReadOnly<{|
...
onChange?: ?(event: BubblingEvent<Event>) => mixed,
|}>;
```
However, it would be helpful to be able to reuse `NativeProps` in the user facing component:
```
// SegmentedControlIOS.js
type Props = $ReadOnly<{|
...NativeProps
onValueChange?: ?(value: number) => mixed,
|}>;
```
## Changes
- updates the `getTypes` function to unwrap the type declaration inside exported declarations
- add test to verify that exported types are parsed as expected
Reviewed By: rickhanlonii
Differential Revision: D15851693
fbshipit-source-id: a9cd375c69cbb8fe9a38be3d2a681227444fb33d