feat: add util package for generating search indices (#8571)

packages/api-extractor-utils/src/tsdoc/CommentNode.ts

@@ -0,0 +1,28 @@
+import type { DocNode, DocNodeKind } from '@microsoft/tsdoc';
+import type { DocBlockJSON } from './CommentBlock';
+import type { DocCodeSpanJSON } from './CommentCodeSpan';
+import type { DocNodeContainerJSON } from './CommentNodeContainer';
+import type { DocFencedCodeJSON } from './FencedCodeCommentNode';
+import type { DocLinkTagJSON } from './LinkTagCommentNode';
+import type { DocPlainTextJSON } from './PlainTextCommentNode';
+import type { DocCommentJSON } from './RootComment';
+
+export interface DocNodeJSON {
+	kind: DocNodeKind;
+}
+
+export type AnyDocNodeJSON =
+	| DocNodeJSON
+	| DocPlainTextJSON
+	| DocNodeContainerJSON
+	| DocLinkTagJSON
+	| DocFencedCodeJSON
+	| DocBlockJSON
+	| DocCommentJSON
+	| DocCodeSpanJSON;
+
+export function node(node: DocNode): DocNodeJSON {
+	return {
+		kind: node.kind as DocNodeKind,
+	};
+}