Update types in virtualized-lists so that they produce valid TS output

Summary: Changelog: [Internal]

Differential Revision: D69308533

packages/virtualized-lists/Lists/StateSafePureComponent.js

@@ -31,8 +31,8 @@ export default class StateSafePureComponent<
     this._installSetStateHooks();
   }
 
-  setState(
-    partialState: ?(Partial<State> | ((State, Props) => ?Partial<State>)),
+  setState<K: $Keys<State>>(
+    partialState: ?(Pick<State, K> | ((State, Props) => ?Pick<State, K>)),
     callback?: () => mixed,
   ): void {
     if (typeof partialState === 'function') {

packages/virtualized-lists/Lists/VirtualizedList.js

@@ -1108,7 +1108,7 @@ class VirtualizedList extends StateSafePureComponent<Props, State> {
           (
             this.props.renderScrollComponent ||
             this._defaultRenderScrollComponent
-          )(scrollProps),
+          )(scrollProps) as ExactReactElement_DEPRECATED<any>,
           {
             ref: this._captureScrollRef,
           },
@@ -1711,7 +1711,7 @@ class VirtualizedList extends StateSafePureComponent<Props, State> {
       zoomScale,
     };
     if (this.state.pendingScrollUpdateCount > 0) {
-      this.setState(state => ({
+      this.setState<'pendingScrollUpdateCount'>(state => ({
         pendingScrollUpdateCount: state.pendingScrollUpdateCount - 1,
       }));
     }
@@ -1871,7 +1871,7 @@ class VirtualizedList extends StateSafePureComponent<Props, State> {
   _updateCellsToRender = () => {
     this._updateViewableItems(this.props, this.state.cellsAroundViewport);
 
-    this.setState((state, props) => {
+    this.setState<'cellsAroundViewport' | 'renderMask'>((state, props) => {
       const cellsAroundViewport = this._adjustCellsAroundViewport(
         props,
         state.cellsAroundViewport,

packages/virtualized-lists/Lists/VirtualizedListCellRenderer.js

@@ -64,10 +64,10 @@ export default class CellRenderer<ItemT> extends React.PureComponent<
     },
   };
 
-  static getDerivedStateFromProps(
-    props: Props<ItemT>,
-    prevState: State<ItemT>,
-  ): ?State<ItemT> {
+  static getDerivedStateFromProps<StaticItemT>(
+    props: Props<StaticItemT>,
+    prevState: State<StaticItemT>,
+  ): ?State<StaticItemT> {
     if (props.item !== prevState.separatorProps.leadingItem) {
       return {
         separatorProps: {

packages/virtualized-lists/Lists/VirtualizedListProps.js

@@ -155,26 +155,17 @@ type OptionalProps = {
    * `highlight` and `unhighlight` (which set the `highlighted: boolean` prop) are insufficient for
    * your use-case.
    */
-  ListItemComponent?: ?(
-    | React.ComponentType<any>
-    | ExactReactElement_DEPRECATED<any>
-  ),
+  ListItemComponent?: ?(React.ComponentType<any> | React.MixedElement),
   /**
    * Rendered when the list is empty. Can be a React Component Class, a render function, or
    * a rendered element.
    */
-  ListEmptyComponent?: ?(
-    | React.ComponentType<any>
-    | ExactReactElement_DEPRECATED<any>
-  ),
+  ListEmptyComponent?: ?(React.ComponentType<any> | React.MixedElement),
   /**
    * Rendered at the bottom of all the items. Can be a React Component Class, a render function, or
    * a rendered element.
    */
-  ListFooterComponent?: ?(
-    | React.ComponentType<any>
-    | ExactReactElement_DEPRECATED<any>
-  ),
+  ListFooterComponent?: ?(React.ComponentType<any> | React.MixedElement),
   /**
    * Styling for internal View for ListFooterComponent
    */
@@ -183,10 +174,7 @@ type OptionalProps = {
    * Rendered at the top of all the items. Can be a React Component Class, a render function, or
    * a rendered element.
    */
-  ListHeaderComponent?: ?(
-    | React.ComponentType<any>
-    | ExactReactElement_DEPRECATED<any>
-  ),
+  ListHeaderComponent?: ?(React.ComponentType<any> | React.MixedElement),
   /**
    * Styling for internal View for ListHeaderComponent
    */
@@ -256,7 +244,7 @@ type OptionalProps = {
    * <RefreshControl> component built internally. The onRefresh and refreshing
    * props are also ignored. Only works for vertical VirtualizedList.
    */
-  refreshControl?: ?ExactReactElement_DEPRECATED<any>,
+  refreshControl?: ?React.MixedElement,
   /**
    * Set this true while waiting for new data from a refresh.
    */
@@ -270,7 +258,7 @@ type OptionalProps = {
   /**
    * Render a custom scroll component, e.g. with a differently styled `RefreshControl`.
    */
-  renderScrollComponent?: (props: Object) => ExactReactElement_DEPRECATED<any>,
+  renderScrollComponent?: (props: Object) => React.MixedElement,
   /**
    * Amount of time between low-pri item render batches, e.g. for rendering items quite a ways off
    * screen. Similar fill rate/responsiveness tradeoff as `maxToRenderPerBatch`.
@@ -293,10 +281,6 @@ type OptionalProps = {
    * chance that fast scrolling may reveal momentary blank areas of unrendered content.
    */
   windowSize?: ?number,
-  /**
-   * The legacy implementation is no longer supported.
-   */
-  legacyImplementation?: empty,
 };
 
 export type Props = {

packages/virtualized-lists/Lists/VirtualizedSectionList.js

@@ -91,7 +91,7 @@ type OptionalProps<SectionT: SectionBase<any>> = {
 
 type VirtualizedListProps = React.ElementConfig<typeof VirtualizedList>;
 
-export type Props<SectionT> = {
+export type Props<SectionT: SectionBase<any>> = {
   ...RequiredProps<SectionT>,
   ...OptionalProps<SectionT>,
   ...$Diff<