Add some utility generics for better typings

packages/ra-core/src/core/ResourceDefinitionContext.tsx

@@ -2,10 +2,10 @@ import * as React from 'react';
 import { createContext, useCallback, useState, useMemo } from 'react';
 import isEqual from 'lodash/isEqual';
 
-import { ResourceDefinition } from '../types';
+import { ResourceDefinition, ResourceOptions } from '../types';
 
-export type ResourceDefinitions = {
-    [name: string]: ResourceDefinition;
+export type ResourceDefinitions<OptionsType extends ResourceOptions = any> = {
+    [name: string]: ResourceDefinition<OptionsType>;
 };
 
 export type ResourceDefinitionContextValue = {

packages/ra-core/src/core/useResourceDefinition.ts

@@ -3,7 +3,7 @@ import defaults from 'lodash/defaults';
 
 import { useResourceDefinitions } from './useResourceDefinitions';
 import { useResourceContext } from './useResourceContext';
-import { ResourceDefinition } from '../types';
+import { ResourceDefinition, ResourceOptions } from '../types';
 
 /**
  * Hook to get the definition of a given resource
@@ -26,9 +26,11 @@ import { ResourceDefinition } from '../types';
  *
  * const definition = useResourceDefinition({ resource: 'posts' });
  */
-export const useResourceDefinition = (
+export const useResourceDefinition = <
+    OptionsType extends ResourceOptions = any
+>(
     props?: UseResourceDefinitionOptions
-): ResourceDefinition => {
+): ResourceDefinition<OptionsType> => {
     const resource = useResourceContext(props);
     const resourceDefinitions = useResourceDefinitions();
     const { hasCreate, hasEdit, hasList, hasShow, recordRepresentation } =

packages/ra-core/src/core/useResourceDefinitions.ts

@@ -19,5 +19,7 @@ import { useResourceDefinitionContext } from './useResourceDefinitionContext';
  * //   recordRepresentation: 'title',
  * // }
  */
-export const useResourceDefinitions = (): ResourceDefinitions =>
+export const useResourceDefinitions = <
+    OptionsType = any
+>(): ResourceDefinitions<OptionsType> =>
     useResourceDefinitionContext().definitions;

packages/ra-core/src/form/useInput.ts

@@ -23,7 +23,9 @@ const defaultFormat = (value: any) => (value == null ? '' : value);
 // parse empty string into null as it's more suitable for a majority of backends
 const defaultParse = (value: string) => (value === '' ? null : value);
 
-export const useInput = (props: InputProps): UseInputValue => {
+export const useInput = <ValueType = any>(
+    props: InputProps<ValueType>
+): UseInputValue => {
     const {
         defaultValue,
         format = defaultFormat,

packages/ra-core/src/types.ts

@@ -275,9 +275,9 @@ export type LegacyDataProvider = (
 
 export type RecordToStringFunction = (record: any) => string;
 
-export interface ResourceDefinition {
+export interface ResourceDefinition<OptionsType extends ResourceOptions = any> {
     readonly name: string;
-    readonly options?: any;
+    readonly options?: OptionsType;
     readonly hasList?: boolean;
     readonly hasEdit?: boolean;
     readonly hasShow?: boolean;