fix(52879): No autocompletions after the typeof keyword inside JSDoc comments. (#52973)

src/services/completions.ts

@@ -3005,8 +3005,7 @@ function getCompletionData(
 
         // Since this is qualified name check it's a type node location
         const isImportType = isLiteralImportTypeNode(node);
-        const isTypeLocation = insideJsDocTagTypeExpression
-            || (isImportType && !(node as ImportTypeNode).isTypeOf)
+        const isTypeLocation = (isImportType && !(node as ImportTypeNode).isTypeOf)
             || isPartOfTypeNode(node.parent)
             || isPossiblyTypeArgumentPosition(contextToken, sourceFile, typeChecker);
         const isRhsOfImportDeclaration = isInRightSideOfInternalImportEqualsDeclaration(node);
@@ -3029,7 +3028,7 @@ function getCompletionData(
                             : isRhsOfImportDeclaration ?
                                 // Any kind is allowed when dotting off namespace in internal import equals declaration
                                 symbol => isValidTypeAccess(symbol) || isValidValueAccess(symbol) :
-                                isTypeLocation ? isValidTypeAccess : isValidValueAccess;
+                                isTypeLocation || insideJsDocTagTypeExpression ? isValidTypeAccess : isValidValueAccess;
                     for (const exportedSymbol of exportedSymbols) {
                         if (isValidAccess(exportedSymbol)) {
                             symbols.push(exportedSymbol);
@@ -3038,6 +3037,7 @@ function getCompletionData(
 
                     // If the module is merged with a value, we must get the type of the class and add its propertes (for inherited static methods).
                     if (!isTypeLocation &&
+                        !insideJsDocTagTypeExpression &&
                         symbol.declarations &&
                         symbol.declarations.some(d => d.kind !== SyntaxKind.SourceFile && d.kind !== SyntaxKind.ModuleDeclaration && d.kind !== SyntaxKind.EnumDeclaration)) {
                         let type = typeChecker.getTypeOfSymbolAtLocation(symbol, node).getNonOptionalType();

tests/baselines/reference/jsFileJsdocTypedefTagTypeExpressionCompletion4.baseline

@@ -0,0 +1,132 @@
+=== /a.js ===
+// const foo = {
+//     bar: {
+//         baz: 42,
+//     }
+// }
+// /** @typedef { typeof foo. } Foo */
+//                           ^
+// | ----------------------------------------------------------------------
+// | (property) bar: {
+// |     baz: number;
+// | }
+// | (warning) baz
+// | (warning) foo
+// | (warning) Foo
+// | ----------------------------------------------------------------------
+
+[
+  {
+    "marker": {
+      "fileName": "/a.js",
+      "position": 76,
+      "name": ""
+    },
+    "item": {
+      "flags": 0,
+      "isGlobalCompletion": false,
+      "isMemberCompletion": true,
+      "isNewIdentifierLocation": false,
+      "entries": [
+        {
+          "name": "bar",
+          "kind": "property",
+          "kindModifiers": "",
+          "sortText": "11",
+          "displayParts": [
+            {
+              "text": "(",
+              "kind": "punctuation"
+            },
+            {
+              "text": "property",
+              "kind": "text"
+            },
+            {
+              "text": ")",
+              "kind": "punctuation"
+            },
+            {
+              "text": " ",
+              "kind": "space"
+            },
+            {
+              "text": "bar",
+              "kind": "propertyName"
+            },
+            {
+              "text": ":",
+              "kind": "punctuation"
+            },
+            {
+              "text": " ",
+              "kind": "space"
+            },
+            {
+              "text": "{",
+              "kind": "punctuation"
+            },
+            {
+              "text": "\n",
+              "kind": "lineBreak"
+            },
+            {
+              "text": "    ",
+              "kind": "space"
+            },
+            {
+              "text": "baz",
+              "kind": "propertyName"
+            },
+            {
+              "text": ":",
+              "kind": "punctuation"
+            },
+            {
+              "text": " ",
+              "kind": "space"
+            },
+            {
+              "text": "number",
+              "kind": "keyword"
+            },
+            {
+              "text": ";",
+              "kind": "punctuation"
+            },
+            {
+              "text": "\n",
+              "kind": "lineBreak"
+            },
+            {
+              "text": "}",
+              "kind": "punctuation"
+            }
+          ],
+          "documentation": []
+        },
+        {
+          "name": "baz",
+          "kind": "warning",
+          "kindModifiers": "",
+          "sortText": "18",
+          "isFromUncheckedFile": true
+        },
+        {
+          "name": "foo",
+          "kind": "warning",
+          "kindModifiers": "",
+          "sortText": "18",
+          "isFromUncheckedFile": true
+        },
+        {
+          "name": "Foo",
+          "kind": "warning",
+          "kindModifiers": "",
+          "sortText": "18",
+          "isFromUncheckedFile": true
+        }
+      ]
+    }
+  }
+]

tests/cases/fourslash/jsFileJsdocTypedefTagTypeExpressionCompletion4.ts

@@ -0,0 +1,12 @@
+/// <reference path="fourslash.ts" />
+
+// @allowJs: true
+// @filename: /a.js
+////const foo = {
+////    bar: {
+////        baz: 42,
+////    }
+////}
+/////** @typedef { typeof foo./**/ } Foo */
+
+verify.baselineCompletions();