graceguo-supercat commented on a change in pull request #9820:
URL:
https://github.com/apache/incubator-superset/pull/9820#discussion_r427683963
##########
File path: superset-frontend/src/dashboard/util/isValidChild.ts
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@@ -105,12 +105,36 @@ const parentMaxDepthLookup = {
[MARKDOWN_TYPE]: {},
};
-export default function isValidChild({ parentType, childType, parentDepth }) {
+type ParentMaxDepthLookup = typeof parentMaxDepthLookup;
+
+interface IsValidChildProps {
+ parentType?: unknown;
+ childType?: unknown;
+ parentDepth?: unknown;
+}
+
+interface ValidChild<
+ P extends keyof ParentMaxDepthLookup,
+ C extends keyof ParentMaxDepthLookup[P],
+ D extends ParentMaxDepthLookup[P][C]
+> {
+ parentType: P;
+ childType: C;
+ parentDepth: D;
+}
+
+export default function isValidChild<
+ P extends keyof ParentMaxDepthLookup = any,
+ C extends keyof ParentMaxDepthLookup[P] = any,
+ D extends ParentMaxDepthLookup[P][C] = any
+>(child: IsValidChildProps): child is ValidChild<P, C, D> {
+ const { parentType, childType, parentDepth } = child;
if (!parentType || !childType || typeof parentDepth !== 'number') {
Review comment:
yes, i feel `parentDepth` should be `number` type. This intermediate
step a little confused me. Thanks!
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