Add code fix for renaming @param tag in JSDoc without reformatting

src/services/fixJSDocsparams.ts

@@ -0,0 +1,54 @@
+import {
+    codeFixAll,
+    createCodeFixAction,
+    registerCodeFix,
+} from "../_namespaces/ts.codefix.js";
+import {
+    JSDocParameterTag,
+    textChanges,
+    Diagnostics,
+    SyntaxKind,
+    SourceFile,
+    createIdentifier,
+    Node,
+} from "../_namespaces/ts.js";
+
+const fixId = "fixJSDocParam";
+const errorCodes = [
+    Diagnostics.Rename_param_tag_name.code,
+];
+
+registerCodeFix({
+    errorCodes,
+    getCodeActions(context) {
+        const { sourceFile } = context;
+        const paramTag = findJSDocParamTag(sourceFile, context.span.start);
+        if (!paramTag) return;
+
+        const changes = textChanges.ChangeTracker.with(context, t => doRename(t, sourceFile, paramTag, context.newName));
+        return [createCodeFixAction(fixId, changes, Diagnostics.Rename_param_tag_name, fixId)];
+    },
+    fixIds: [fixId],
+    getAllCodeActions(context) {
+        return codeFixAll(context, errorCodes, (changes, err) => {
+            const paramTag = findJSDocParamTag(err.file, err.start);
+            if (!paramTag) return;
+            doRename(changes, err.file, paramTag, context.newName);
+        });
+    },
+});
+
+function findJSDocParamTag(sourceFile: SourceFile, pos: number): JSDocParameterTag | undefined {
+    // Traverse the AST to find the relevant @param JSDoc tag
+    const token = getTokenAtPosition(sourceFile, pos);
+    return token && findAncestor(token, isJSDocParameterTag);
+}
+
+function doRename(changes: textChanges.ChangeTracker, sourceFile: SourceFile, paramTag: JSDocParameterTag, newName: string): void {
+    const paramName = paramTag.name;
+    changes.replaceNode(sourceFile, paramName, createIdentifier(newName));
+}
+
+function isJSDocParameterTag(node: Node): node is JSDocParameterTag {
+    return node.kind === SyntaxKind.JSDocParameterTag;
+}

tests/cases/fourslash/renameParamTagQuickFix.ts

@@ -0,0 +1,25 @@
+/// <reference path='fourslash.ts' />
+
+// Test for JSDoc @param quick fix reformatting issue
+
+// @Filename: /a.js
+//// /**
+////  * 
+////  * @param eks {string} the first param
+////  * @param y {number} the second param
+////  */
+//// function foo(x, y) {
+//// }
+
+verify.codeFix({
+    description: "Rename '@param' tag name 'eks' to 'x'",
+    index: 0,
+    newFileContent:
+`/**
+ * 
+ * @param x {string} the first param
+ * @param y {number} the second param
+ */
+function foo(x, y) {
+}`,
+});