Summary:
This pull request adds the ability for a platform developer to provide a `"haste"` key under the `"rnpm"` key in their `package.json` which allows the packager to pick up that platform's javascript files. The intent is to remove the need to have custom platforms hardcoded in. This is inspired by the `"jest": { "haste": {} }` key used by jest.
For example, React Native Dom would have an entry like:
```json
{
"rnpm": {
"haste": {
"providesModuleNodeModules": [
"react-native-dom"
],
"platforms": [
"dom"
]
}
}
}
```
Support for more keys (path blacklists perhaps?) could be added in the future.
This succeeds #20662, as per a discussion I had with matthargett.
I've got an open discussion over here as well: https://github.com/react-native-community/discussions-and-proposals/issues/21
Pull Request resolved: https://github.com/facebook/react-native/pull/20825
Differential Revision: D9596429
Pulled By: hramos
fbshipit-source-id: a02f0da0bea8870bdc45d55e23da8ccbc36249f2
03476a225e