Expose getJSDocCommentsAndTags (#53627)

src/compiler/utilities.ts

@@ -4198,7 +4198,29 @@ export function canHaveJSDoc(node: Node): node is HasJSDoc {
     }
 }
 
-/** @internal */
+/**
+ * This function checks multiple locations for JSDoc comments that apply to a host node.
+ * At each location, the whole comment may apply to the node, or only a specific tag in
+ * the comment. In the first case, location adds the entire {@link JSDoc} object. In the
+ * second case, it adds the applicable {@link JSDocTag}.
+ *
+ * For example, a JSDoc comment before a parameter adds the entire {@link JSDoc}. But a
+ * `@param` tag on the parent function only adds the {@link JSDocTag} for the `@param`.
+ *
+ * ```ts
+ * /** JSDoc will be returned for `a` *\/
+ * const a = 0
+ * /**
+ *  * Entire JSDoc will be returned for `b`
+ *  * @param c JSDocTag will be returned for `c`
+ *  *\/
+ * function b(/** JSDoc will be returned for `c` *\/ c) {}
+ * ```
+ */
+export function getJSDocCommentsAndTags(hostNode: Node): readonly (JSDoc | JSDocTag)[];
+/** @internal separate signature so that stripInternal can remove noCache from the public API */
+// eslint-disable-next-line @typescript-eslint/unified-signatures
+export function getJSDocCommentsAndTags(hostNode: Node, noCache?: boolean): readonly (JSDoc | JSDocTag)[];
 export function getJSDocCommentsAndTags(hostNode: Node, noCache?: boolean): readonly (JSDoc | JSDocTag)[] {
     let result: (JSDoc | JSDocTag)[] | undefined;
     // Pull parameter comments from declaring function as well

tests/baselines/reference/api/tsserverlibrary.d.ts

@@ -8817,6 +8817,26 @@ declare namespace ts {
         parent: ConstructorDeclaration;
         name: Identifier;
     };
+    /**
+     * This function checks multiple locations for JSDoc comments that apply to a host node.
+     * At each location, the whole comment may apply to the node, or only a specific tag in
+     * the comment. In the first case, location adds the entire {@link JSDoc} object. In the
+     * second case, it adds the applicable {@link JSDocTag}.
+     *
+     * For example, a JSDoc comment before a parameter adds the entire {@link JSDoc}. But a
+     * `@param` tag on the parent function only adds the {@link JSDocTag} for the `@param`.
+     *
+     * ```ts
+     * /** JSDoc will be returned for `a` *\/
+     * const a = 0
+     * /**
+     *  * Entire JSDoc will be returned for `b`
+     *  * @param c JSDocTag will be returned for `c`
+     *  *\/
+     * function b(/** JSDoc will be returned for `c` *\/ c) {}
+     * ```
+     */
+    function getJSDocCommentsAndTags(hostNode: Node): readonly (JSDoc | JSDocTag)[];
     /** @deprecated */
     function createUnparsedSourceFile(text: string): UnparsedSource;
     /** @deprecated */

tests/baselines/reference/api/typescript.d.ts

@@ -4771,6 +4771,26 @@ declare namespace ts {
         parent: ConstructorDeclaration;
         name: Identifier;
     };
+    /**
+     * This function checks multiple locations for JSDoc comments that apply to a host node.
+     * At each location, the whole comment may apply to the node, or only a specific tag in
+     * the comment. In the first case, location adds the entire {@link JSDoc} object. In the
+     * second case, it adds the applicable {@link JSDocTag}.
+     *
+     * For example, a JSDoc comment before a parameter adds the entire {@link JSDoc}. But a
+     * `@param` tag on the parent function only adds the {@link JSDocTag} for the `@param`.
+     *
+     * ```ts
+     * /** JSDoc will be returned for `a` *\/
+     * const a = 0
+     * /**
+     *  * Entire JSDoc will be returned for `b`
+     *  * @param c JSDocTag will be returned for `c`
+     *  *\/
+     * function b(/** JSDoc will be returned for `c` *\/ c) {}
+     * ```
+     */
+    function getJSDocCommentsAndTags(hostNode: Node): readonly (JSDoc | JSDocTag)[];
     /** @deprecated */
     function createUnparsedSourceFile(text: string): UnparsedSource;
     /** @deprecated */