Merge branch 'master' into mh/33603-error-message-for-missing-member

.gitignore

@@ -91,4 +91,5 @@ tests/cases/user/create-react-app/create-react-app
 tests/cases/user/webpack/webpack
 tests/cases/user/puppeteer/puppeteer
 tests/cases/user/axios-src/axios-src
-tests/cases/user/prettier/prettier
+tests/cases/user/prettier/prettier
+.eslintcache

Gulpfile.js

@@ -341,6 +341,8 @@ const eslint = (folder) => async () => {
 
     const args = [
         "node_modules/eslint/bin/eslint",
+        "--cache",
+        "--cache-location", `${folder}/.eslintcache`,
         "--format", "autolinkable-stylish",
         "--rulesdir", "scripts/eslint/built/rules",
         "--ext", ".ts",

src/compiler/binder.ts

@@ -13,11 +13,26 @@ namespace ts {
         referenced: boolean;
     }
 
-    export function getModuleInstanceState(node: ModuleDeclaration): ModuleInstanceState {
-        return node.body ? getModuleInstanceStateWorker(node.body) : ModuleInstanceState.Instantiated;
+    export function getModuleInstanceState(node: ModuleDeclaration, visited?: Map<ModuleInstanceState | undefined>): ModuleInstanceState {
+        if (node.body && !node.body.parent) {
+            // getModuleInstanceStateForAliasTarget needs to walk up the parent chain, so parent pointers must be set on this tree already
+            setParentPointers(node, node.body);
+        }
+        return node.body ? getModuleInstanceStateCached(node.body, visited) : ModuleInstanceState.Instantiated;
     }
 
-    function getModuleInstanceStateWorker(node: Node): ModuleInstanceState {
+    function getModuleInstanceStateCached(node: Node, visited = createMap<ModuleInstanceState | undefined>()) {
+        const nodeId = "" + getNodeId(node);
+        if (visited.has(nodeId)) {
+            return visited.get(nodeId) || ModuleInstanceState.NonInstantiated;
+        }
+        visited.set(nodeId, undefined);
+        const result = getModuleInstanceStateWorker(node, visited);
+        visited.set(nodeId, result);
+        return result;
+    }
+
+    function getModuleInstanceStateWorker(node: Node, visited: Map<ModuleInstanceState | undefined>): ModuleInstanceState {
         // A module is uninstantiated if it contains only
         switch (node.kind) {
             // 1. interface declarations, type alias declarations
@@ -37,11 +52,27 @@ namespace ts {
                     return ModuleInstanceState.NonInstantiated;
                 }
                 break;
-            // 4. other uninstantiated module declarations.
+            // 4. Export alias declarations pointing at only uninstantiated modules or things uninstantiated modules contain
+            case SyntaxKind.ExportDeclaration:
+                if (!(node as ExportDeclaration).moduleSpecifier && !!(node as ExportDeclaration).exportClause) {
+                    let state = ModuleInstanceState.NonInstantiated;
+                    for (const specifier of (node as ExportDeclaration).exportClause!.elements) {
+                        const specifierState = getModuleInstanceStateForAliasTarget(specifier, visited);
+                        if (specifierState > state) {
+                            state = specifierState;
+                        }
+                        if (state === ModuleInstanceState.Instantiated) {
+                            return state;
+                        }
+                    }
+                    return state;
+                }
+                break;
+            // 5. other uninstantiated module declarations.
             case SyntaxKind.ModuleBlock: {
                 let state = ModuleInstanceState.NonInstantiated;
                 forEachChild(node, n => {
-                    const childState = getModuleInstanceStateWorker(n);
+                    const childState = getModuleInstanceStateCached(n, visited);
                     switch (childState) {
                         case ModuleInstanceState.NonInstantiated:
                             // child is non-instantiated - continue searching
@@ -61,7 +92,7 @@ namespace ts {
                 return state;
             }
             case SyntaxKind.ModuleDeclaration:
-                return getModuleInstanceState(node as ModuleDeclaration);
+                return getModuleInstanceState(node as ModuleDeclaration, visited);
             case SyntaxKind.Identifier:
                 // Only jsdoc typedef definition can exist in jsdoc namespace, and it should
                 // be considered the same as type alias
@@ -72,6 +103,36 @@ namespace ts {
         return ModuleInstanceState.Instantiated;
     }
 
+    function getModuleInstanceStateForAliasTarget(specifier: ExportSpecifier, visited: Map<ModuleInstanceState | undefined>) {
+        const name = specifier.propertyName || specifier.name;
+        let p: Node | undefined = specifier.parent;
+        while (p) {
+            if (isBlock(p) || isModuleBlock(p) || isSourceFile(p)) {
+                const statements = p.statements;
+                let found: ModuleInstanceState | undefined;
+                for (const statement of statements) {
+                    if (nodeHasName(statement, name)) {
+                        if (!statement.parent) {
+                            setParentPointers(p, statement);
+                        }
+                        const state = getModuleInstanceStateCached(statement, visited);
+                        if (found === undefined || state > found) {
+                            found = state;
+                        }
+                        if (found === ModuleInstanceState.Instantiated) {
+                            return found;
+                        }
+                    }
+                }
+                if (found !== undefined) {
+                    return found;
+                }
+            }
+            p = p.parent;
+        }
+        return ModuleInstanceState.Instantiated; // Couldn't locate, assume could refer to a value
+    }
+
     const enum ContainerFlags {
         // The current node is not a container, and no container manipulation should happen before
         // recursing into it.
@@ -2561,7 +2622,7 @@ namespace ts {
                         // Declare a 'member' if the container is an ES5 class or ES6 constructor
                         constructorSymbol.members = constructorSymbol.members || createSymbolTable();
                         // It's acceptable for multiple 'this' assignments of the same identifier to occur
-                        declareSymbol(constructorSymbol.members, constructorSymbol, node, SymbolFlags.Property, SymbolFlags.PropertyExcludes & ~SymbolFlags.Property);
+                        declareSymbol(constructorSymbol.members, constructorSymbol, node, SymbolFlags.Property | SymbolFlags.Assignment, SymbolFlags.PropertyExcludes & ~SymbolFlags.Property);
                         addDeclarationToSymbol(constructorSymbol, constructorSymbol.valueDeclaration, SymbolFlags.Class);
                     }
                     break;
@@ -2575,7 +2636,7 @@ namespace ts {
                     // Bind this property to the containing class
                     const containingClass = thisContainer.parent;
                     const symbolTable = hasModifier(thisContainer, ModifierFlags.Static) ? containingClass.symbol.exports! : containingClass.symbol.members!;
-                    declareSymbol(symbolTable, containingClass.symbol, node, SymbolFlags.Property, SymbolFlags.None, /*isReplaceableByMethod*/ true);
+                    declareSymbol(symbolTable, containingClass.symbol, node, SymbolFlags.Property | SymbolFlags.Assignment, SymbolFlags.None, /*isReplaceableByMethod*/ true);
                     break;
                 case SyntaxKind.SourceFile:
                     // this.property = assignment in a source file -- declare symbol in exports for a module, in locals for a script

src/compiler/core.ts

@@ -1552,6 +1552,14 @@ namespace ts {
         return fn ? fn.bind(obj) : undefined;
     }
 
+    export function mapMap<T, U>(map: Map<T>, f: (t: T, key: string) => [string, U]): Map<U>;
+    export function mapMap<T, U>(map: UnderscoreEscapedMap<T>, f: (t: T, key: __String) => [string, U]): Map<U>;
+    export function mapMap<T, U>(map: Map<T> | UnderscoreEscapedMap<T>, f: ((t: T, key: string) => [string, U]) | ((t: T, key: __String) => [string, U])): Map<U> {
+        const result = createMap<U>();
+        map.forEach((t: T, key: string & __String) => result.set(...(f(t, key))));
+        return result;
+    }
+
     export interface MultiMap<T> extends Map<T[]> {
         /**
          * Adds the value to an array of values associated with the key, and returns the array.

src/compiler/diagnosticMessages.json

@@ -4587,6 +4587,14 @@
         "category": "Error",
         "code": 9004
     },
+    "Declaration emit for this file requires using private name '{0}'. An explicit type annotation may unblock declaration emit.": {
+        "category": "Error",
+        "code": 9005
+    },
+    "Declaration emit for this file requires using private name '{0}' from module '{1}'. An explicit type annotation may unblock declaration emit.": {
+        "category": "Error",
+        "code": 9006
+    },
     "JSX attributes must only be assigned a non-empty 'expression'.": {
         "category": "Error",
         "code": 17000

src/compiler/emitter.ts

@@ -96,9 +96,7 @@ namespace ts {
                 comparePaths(sourceFile.fileName, ownOutputFilePath, host.getCurrentDirectory(), !host.useCaseSensitiveFileNames()) === Comparison.EqualTo;
             const jsFilePath = options.emitDeclarationOnly || isJsonEmittedToSameLocation ? undefined : ownOutputFilePath;
             const sourceMapFilePath = !jsFilePath || isJsonSourceFile(sourceFile) ? undefined : getSourceMapFilePath(jsFilePath, options);
-            // For legacy reasons (ie, we have baselines capturing the behavior), js files don't report a .d.ts output path - this would only matter if `declaration` and `allowJs` were both on, which is currently an error
-            const isJs = isSourceFileJS(sourceFile);
-            const declarationFilePath = ((forceDtsPaths || getEmitDeclarations(options)) && !isJs) ? getDeclarationEmitOutputFilePath(sourceFile.fileName, host) : undefined;
+            const declarationFilePath = (forceDtsPaths || getEmitDeclarations(options)) ? getDeclarationEmitOutputFilePath(sourceFile.fileName, host) : undefined;
             const declarationMapPath = declarationFilePath && getAreDeclarationMapsEnabled(options) ? declarationFilePath + ".map" : undefined;
             return { jsFilePath, sourceMapFilePath, declarationFilePath, declarationMapPath, buildInfoPath: undefined };
         }
@@ -146,7 +144,7 @@ namespace ts {
 
     /* @internal */
     export function getOutputDeclarationFileName(inputFileName: string, configFile: ParsedCommandLine, ignoreCase: boolean) {
-        Debug.assert(!fileExtensionIs(inputFileName, Extension.Dts) && hasTSFileExtension(inputFileName));
+        Debug.assert(!fileExtensionIs(inputFileName, Extension.Dts));
         return changeExtension(
             getOutputPathWithoutChangingExt(inputFileName, configFile, ignoreCase, configFile.options.declarationDir || configFile.options.outDir),
             Extension.Dts
@@ -199,7 +197,7 @@ namespace ts {
         if (js && configFile.options.sourceMap) {
             addOutput(`${js}.map`);
         }
-        if (getEmitDeclarations(configFile.options) && hasTSFileExtension(inputFileName)) {
+        if (getEmitDeclarations(configFile.options)) {
             const dts = getOutputDeclarationFileName(inputFileName, configFile, ignoreCase);
             addOutput(dts);
             if (configFile.options.declarationMap) {
@@ -248,7 +246,7 @@ namespace ts {
             const jsFilePath = getOutputJSFileName(inputFileName, configFile, ignoreCase);
             if (jsFilePath) return jsFilePath;
             if (fileExtensionIs(inputFileName, Extension.Json)) continue;
-            if (getEmitDeclarations(configFile.options) && hasTSFileExtension(inputFileName)) {
+            if (getEmitDeclarations(configFile.options)) {
                 return getOutputDeclarationFileName(inputFileName, configFile, ignoreCase);
             }
         }
@@ -395,17 +393,16 @@ namespace ts {
             declarationFilePath: string | undefined,
             declarationMapPath: string | undefined,
             relativeToBuildInfo: (path: string) => string) {
-            if (!sourceFileOrBundle || !(declarationFilePath && !isInJSFile(sourceFileOrBundle))) {
+            if (!sourceFileOrBundle || !declarationFilePath) {
                 return;
             }
             const sourceFiles = isSourceFile(sourceFileOrBundle) ? [sourceFileOrBundle] : sourceFileOrBundle.sourceFiles;
             // Setup and perform the transformation to retrieve declarations from the input files
-            const nonJsFiles = filter(sourceFiles, isSourceFileNotJS);
-            const inputListOrBundle = (compilerOptions.outFile || compilerOptions.out) ? [createBundle(nonJsFiles, !isSourceFile(sourceFileOrBundle) ? sourceFileOrBundle.prepends : undefined)] : nonJsFiles;
+            const inputListOrBundle = (compilerOptions.outFile || compilerOptions.out) ? [createBundle(sourceFiles, !isSourceFile(sourceFileOrBundle) ? sourceFileOrBundle.prepends : undefined)] : sourceFiles;
             if (emitOnlyDtsFiles && !getEmitDeclarations(compilerOptions)) {
                 // Checker wont collect the linked aliases since thats only done when declaration is enabled.
                 // Do that here when emitting only dts files
-                nonJsFiles.forEach(collectLinkedAliases);
+                sourceFiles.forEach(collectLinkedAliases);
             }
             const declarationTransform = transformNodes(resolver, host, compilerOptions, inputListOrBundle, declarationTransformers, /*allowDtsFiles*/ false);
             if (length(declarationTransform.diagnostics)) {
@@ -659,6 +656,7 @@ namespace ts {
         getAllAccessorDeclarations: notImplemented,
         getSymbolOfExternalModuleSpecifier: notImplemented,
         isBindingCapturedByNode: notImplemented,
+        getDeclarationStatementsForSourceFile: notImplemented,
     };
 
     /*@internal*/

src/compiler/factory.ts

@@ -2259,6 +2259,11 @@ namespace ts {
             : node;
     }
 
+    /* @internal */
+    export function createEmptyExports() {
+        return createExportDeclaration(/*decorators*/ undefined, /*modifiers*/ undefined, createNamedExports([]), /*moduleSpecifier*/ undefined);
+    }
+
     export function createNamedExports(elements: readonly ExportSpecifier[]) {
         const node = <NamedExports>createSynthesizedNode(SyntaxKind.NamedExports);
         node.elements = createNodeArray(elements);

src/compiler/program.ts

@@ -856,7 +856,7 @@ namespace ts {
                             }
                             else if (getEmitModuleKind(parsedRef.commandLine.options) === ModuleKind.None) {
                                 for (const fileName of parsedRef.commandLine.fileNames) {
-                                    if (!fileExtensionIs(fileName, Extension.Dts) && hasTSFileExtension(fileName)) {
+                                    if (!fileExtensionIs(fileName, Extension.Dts)) {
                                         processSourceFile(getOutputDeclarationFileName(fileName, parsedRef.commandLine, !host.useCaseSensitiveFileNames()), /*isDefaultLib*/ false, /*ignoreNoDefaultLib*/ false, /*packageId*/ undefined);
                                     }
                                 }
@@ -2448,8 +2448,8 @@ namespace ts {
         }
 
         function getProjectReferenceRedirectProject(fileName: string) {
-            // Ignore dts or any of the non ts files
-            if (!resolvedProjectReferences || !resolvedProjectReferences.length || fileExtensionIs(fileName, Extension.Dts) || !fileExtensionIsOneOf(fileName, supportedTSExtensions)) {
+            // Ignore dts
+            if (!resolvedProjectReferences || !resolvedProjectReferences.length || fileExtensionIs(fileName, Extension.Dts)) {
                 return undefined;
             }
 
@@ -2510,7 +2510,7 @@ namespace ts {
                         }
                         else {
                             forEach(resolvedRef.commandLine.fileNames, fileName => {
-                                if (!fileExtensionIs(fileName, Extension.Dts) && hasTSFileExtension(fileName)) {
+                                if (!fileExtensionIs(fileName, Extension.Dts)) {
                                     const outputDts = getOutputDeclarationFileName(fileName, resolvedRef.commandLine, host.useCaseSensitiveFileNames());
                                     mapFromToProjectReferenceRedirectSource!.set(toPath(outputDts), fileName);
                                 }
@@ -3077,10 +3077,6 @@ namespace ts {
                 createDiagnosticForOptionName(Diagnostics.Option_0_cannot_be_specified_when_option_target_is_ES3, "useDefineForClassFields");
             }
 
-            if (!options.noEmit && options.allowJs && getEmitDeclarations(options)) {
-                createDiagnosticForOptionName(Diagnostics.Option_0_cannot_be_specified_with_option_1, "allowJs", getEmitDeclarationOptionName(options));
-            }
-
             if (options.checkJs && !options.allowJs) {
                 programDiagnostics.add(createCompilerDiagnostic(Diagnostics.Option_0_cannot_be_specified_without_specifying_option_1, "checkJs", "allowJs"));
             }
@@ -3425,9 +3421,6 @@ namespace ts {
         return resolveConfigFileProjectName(passedInRef.path);
     }
 
-    function getEmitDeclarationOptionName(options: CompilerOptions) {
-        return options.declaration ? "declaration" : "composite";
-    }
     /* @internal */
     /**
      * Returns a DiagnosticMessage if we won't include a resolved module due to its extension.

src/compiler/transformers/declarations.ts

@@ -1,11 +1,8 @@
 /*@internal*/
 namespace ts {
     export function getDeclarationDiagnostics(host: EmitHost, resolver: EmitResolver, file: SourceFile | undefined): DiagnosticWithLocation[] | undefined {
-        if (file && isSourceFileJS(file)) {
-            return []; // No declaration diagnostics for js for now
-        }
         const compilerOptions = host.getCompilerOptions();
-        const result = transformNodes(resolver, host, compilerOptions, file ? [file] : filter(host.getSourceFiles(), isSourceFileNotJS), [transformDeclarations], /*allowDtsFiles*/ false);
+        const result = transformNodes(resolver, host, compilerOptions, file ? [file] : host.getSourceFiles(), [transformDeclarations], /*allowDtsFiles*/ false);
         return result.diagnostics;
     }
 
@@ -190,15 +187,24 @@ namespace ts {
             }
         }
 
-        function createEmptyExports() {
-            return createExportDeclaration(/*decorators*/ undefined, /*modifiers*/ undefined, createNamedExports([]), /*moduleSpecifier*/ undefined);
+        function transformDeclarationsForJS(sourceFile: SourceFile, bundled?: boolean) {
+            const oldDiag = getSymbolAccessibilityDiagnostic;
+            getSymbolAccessibilityDiagnostic = (s) => ({
+                diagnosticMessage: s.errorModuleName
+                    ? Diagnostics.Declaration_emit_for_this_file_requires_using_private_name_0_from_module_1_An_explicit_type_annotation_may_unblock_declaration_emit
+                    : Diagnostics.Declaration_emit_for_this_file_requires_using_private_name_0_An_explicit_type_annotation_may_unblock_declaration_emit,
+                errorNode: s.errorNode || sourceFile
+            });
+            const result = resolver.getDeclarationStatementsForSourceFile(sourceFile, declarationEmitNodeBuilderFlags, symbolTracker, bundled);
+            getSymbolAccessibilityDiagnostic = oldDiag;
+            return result;
         }
 
         function transformRoot(node: Bundle): Bundle;
         function transformRoot(node: SourceFile): SourceFile;
         function transformRoot(node: SourceFile | Bundle): SourceFile | Bundle;
         function transformRoot(node: SourceFile | Bundle) {
-            if (node.kind === SyntaxKind.SourceFile && (node.isDeclarationFile || isSourceFileJS(node))) {
+            if (node.kind === SyntaxKind.SourceFile && node.isDeclarationFile) {
                 return node;
             }
 
@@ -209,7 +215,7 @@ namespace ts {
                 let hasNoDefaultLib = false;
                 const bundle = createBundle(map(node.sourceFiles,
                     sourceFile => {
-                        if (sourceFile.isDeclarationFile || isSourceFileJS(sourceFile)) return undefined!; // Omit declaration files from bundle results, too // TODO: GH#18217
+                        if (sourceFile.isDeclarationFile) return undefined!; // Omit declaration files from bundle results, too // TODO: GH#18217
                         hasNoDefaultLib = hasNoDefaultLib || sourceFile.hasNoDefaultLib;
                         currentSourceFile = sourceFile;
                         enclosingDeclaration = sourceFile;
@@ -221,10 +227,10 @@ namespace ts {
                         resultHasScopeMarker = false;
                         collectReferences(sourceFile, refs);
                         collectLibs(sourceFile, libs);
-                        if (isExternalModule(sourceFile)) {
+                        if (isExternalOrCommonJsModule(sourceFile) || isJsonSourceFile(sourceFile)) {
                             resultHasExternalModuleIndicator = false; // unused in external module bundle emit (all external modules are within module blocks, therefore are known to be modules)
                             needsDeclare = false;
-                            const statements = visitNodes(sourceFile.statements, visitDeclarationStatements);
+                            const statements = isSourceFileJS(sourceFile) ? createNodeArray(transformDeclarationsForJS(sourceFile, /*bundled*/ true)) : visitNodes(sourceFile.statements, visitDeclarationStatements);
                             const newFile = updateSourceFileNode(sourceFile, [createModuleDeclaration(
                                 [],
                                 [createModifier(SyntaxKind.DeclareKeyword)],
@@ -234,7 +240,7 @@ namespace ts {
                             return newFile;
                         }
                         needsDeclare = true;
-                        const updated = visitNodes(sourceFile.statements, visitDeclarationStatements);
+                        const updated = isSourceFileJS(sourceFile) ? createNodeArray(transformDeclarationsForJS(sourceFile)) : visitNodes(sourceFile.statements, visitDeclarationStatements);
                         return updateSourceFileNode(sourceFile, transformAndReplaceLatePaintedStatements(updated), /*isDeclarationFile*/ true, /*referencedFiles*/ [], /*typeReferences*/ [], /*hasNoDefaultLib*/ false, /*libReferences*/ []);
                     }
                 ), mapDefined(node.prepends, prepend => {
@@ -276,12 +282,19 @@ namespace ts {
             const references: FileReference[] = [];
             const outputFilePath = getDirectoryPath(normalizeSlashes(getOutputPathsFor(node, host, /*forceDtsPaths*/ true).declarationFilePath!));
             const referenceVisitor = mapReferencesIntoArray(references, outputFilePath);
-            const statements = visitNodes(node.statements, visitDeclarationStatements);
-            let combinedStatements = setTextRange(createNodeArray(transformAndReplaceLatePaintedStatements(statements)), node.statements);
-            refs.forEach(referenceVisitor);
-            emittedImports = filter(combinedStatements, isAnyImportSyntax);
-            if (isExternalModule(node) && (!resultHasExternalModuleIndicator || (needsScopeFixMarker && !resultHasScopeMarker))) {
-                combinedStatements = setTextRange(createNodeArray([...combinedStatements, createEmptyExports()]), combinedStatements);
+            let combinedStatements: NodeArray<Statement>;
+            if (isSourceFileJS(currentSourceFile)) {
+                combinedStatements = createNodeArray(transformDeclarationsForJS(node));
+                emittedImports = filter(combinedStatements, isAnyImportSyntax);
+            }
+            else {
+                const statements = visitNodes(node.statements, visitDeclarationStatements);
+                combinedStatements = setTextRange(createNodeArray(transformAndReplaceLatePaintedStatements(statements)), node.statements);
+                refs.forEach(referenceVisitor);
+                emittedImports = filter(combinedStatements, isAnyImportSyntax);
+                if (isExternalModule(node) && (!resultHasExternalModuleIndicator || (needsScopeFixMarker && !resultHasScopeMarker))) {
+                    combinedStatements = setTextRange(createNodeArray([...combinedStatements, createEmptyExports()]), combinedStatements);
+                }
             }
             const updated = updateSourceFileNode(node, combinedStatements, /*isDeclarationFile*/ true, references, getFileReferencesForUsedTypeReferences(), node.hasNoDefaultLib, getLibReferences());
             updated.exportedModulesFromDeclarationEmit = exportedModulesFromDeclarationEmit;
@@ -755,15 +768,6 @@ namespace ts {
             }
         }
 
-        function isExternalModuleIndicator(result: LateVisibilityPaintedStatement | ExportAssignment) {
-            // Exported top-level member indicates moduleness
-            return isAnyImportOrReExport(result) || isExportAssignment(result) || hasModifier(result, ModifierFlags.Export);
-        }
-
-        function needsScopeMarker(result: LateVisibilityPaintedStatement | ExportAssignment) {
-            return !isAnyImportOrReExport(result) && !isExportAssignment(result) && !hasModifier(result, ModifierFlags.Export) && !isAmbientModule(result);
-        }
-
         function visitDeclarationSubtree(input: Node): VisitResult<Node> {
             if (shouldStripInternal(input)) return;
             if (isDeclaration(input)) {

src/compiler/types.ts

@@ -3734,6 +3734,7 @@ namespace ts {
         getAllAccessorDeclarations(declaration: AccessorDeclaration): AllAccessorDeclarations;
         getSymbolOfExternalModuleSpecifier(node: StringLiteralLike): Symbol | undefined;
         isBindingCapturedByNode(node: Node, decl: VariableDeclaration | BindingElement): boolean;
+        getDeclarationStatementsForSourceFile(node: SourceFile, flags: NodeBuilderFlags, tracker: SymbolTracker, bundled?: boolean): Statement[] | undefined;
     }
 
     export const enum SymbolFlags {
@@ -3814,6 +3815,12 @@ namespace ts {
 
         ClassMember = Method | Accessor | Property,
 
+        /* @internal */
+        ExportSupportsDefaultModifier = Class | Function | Interface,
+
+        /* @internal */
+        ExportDoesNotSupportDefaultModifier = ~ExportSupportsDefaultModifier,
+
         /* @internal */
         // The set of things we consider semantically classifiable.  Used to speed up the LS during
         // classification.
@@ -3877,6 +3884,7 @@ namespace ts {
         variances?: VarianceFlags[];             // Alias symbol type argument variance cache
         deferralConstituents?: Type[];      // Calculated list of constituents for a deferred type
         deferralParent?: Type;              // Source union/intersection of a deferred type
+        cjsExportMerged?: Symbol;           // Version of the symbol with all non export= exports merged with the export= target
     }
 
     /* @internal */
@@ -6024,7 +6032,7 @@ namespace ts {
         // Called when the symbol writer encounters a symbol to write.  Currently only used by the
         // declaration emitter to help determine if it should patch up the final declaration file
         // with import statements it previously saw (but chose not to emit).
-        trackSymbol?(symbol: Symbol, enclosingDeclaration?: Node, meaning?: SymbolFlags): void;
+        trackSymbol?(symbol: Symbol, enclosingDeclaration: Node | undefined, meaning: SymbolFlags): void;
         reportInaccessibleThisError?(): void;
         reportPrivateInBaseOfClassExpression?(propertyName: string): void;
         reportInaccessibleUniqueSymbolError?(): void;

src/compiler/utilities.ts

@@ -2606,6 +2606,8 @@ namespace ts {
     // export = <EntityNameExpression>
     // export default <EntityNameExpression>
     // module.exports = <EntityNameExpression>
+    // {<Identifier>}
+    // {name: <EntityNameExpression>}
     export function isAliasSymbolDeclaration(node: Node): boolean {
         return node.kind === SyntaxKind.ImportEqualsDeclaration ||
             node.kind === SyntaxKind.NamespaceExportDeclaration ||
@@ -2614,12 +2616,28 @@ namespace ts {
             node.kind === SyntaxKind.ImportSpecifier ||
             node.kind === SyntaxKind.ExportSpecifier ||
             node.kind === SyntaxKind.ExportAssignment && exportAssignmentIsAlias(<ExportAssignment>node) ||
-            isBinaryExpression(node) && getAssignmentDeclarationKind(node) === AssignmentDeclarationKind.ModuleExports && exportAssignmentIsAlias(node);
+            isBinaryExpression(node) && getAssignmentDeclarationKind(node) === AssignmentDeclarationKind.ModuleExports && exportAssignmentIsAlias(node) ||
+            isPropertyAccessExpression(node) && isBinaryExpression(node.parent) && node.parent.left === node && node.parent.operatorToken.kind === SyntaxKind.EqualsToken && isAliasableExpression(node.parent.right) ||
+            node.kind === SyntaxKind.ShorthandPropertyAssignment ||
+            node.kind === SyntaxKind.PropertyAssignment && isAliasableExpression((node as PropertyAssignment).initializer);
+    }
+
+    function isAliasableExpression(e: Expression) {
+        return isEntityNameExpression(e) || isClassExpression(e);
     }
 
     export function exportAssignmentIsAlias(node: ExportAssignment | BinaryExpression): boolean {
-        const e = isExportAssignment(node) ? node.expression : node.right;
-        return isEntityNameExpression(e) || isClassExpression(e);
+        const e = getExportAssignmentExpression(node);
+        return isAliasableExpression(e);
+    }
+
+    export function getExportAssignmentExpression(node: ExportAssignment | BinaryExpression): Expression {
+        return isExportAssignment(node) ? node.expression : node.right;
+    }
+
+    export function getPropertyAssignmentAliasLikeExpression(node: PropertyAssignment | ShorthandPropertyAssignment | PropertyAccessExpression): Expression {
+        return node.kind === SyntaxKind.ShorthandPropertyAssignment ? node.name : node.kind === SyntaxKind.PropertyAssignment ? node.initializer :
+            (node.parent as BinaryExpression).right;
     }
 
     export function getEffectiveBaseTypeNode(node: ClassLikeDeclaration | InterfaceDeclaration) {
@@ -2699,6 +2717,11 @@ namespace ts {
         return token !== undefined && isNonContextualKeyword(token);
     }
 
+    export function isStringAKeyword(name: string) {
+        const token = stringToToken(name);
+        return token !== undefined && isKeyword(token);
+    }
+
     export function isIdentifierANonContextualKeyword({ originalKeywordKind }: Identifier): boolean {
         return !!originalKeywordKind && !isContextualKeyword(originalKeywordKind);
     }
@@ -3450,11 +3473,17 @@ namespace ts {
         };
     }
 
-    export function getResolvedExternalModuleName(host: EmitHost, file: SourceFile, referenceFile?: SourceFile): string {
+    export interface ResolveModuleNameResolutionHost {
+        getCanonicalFileName(p: string): string;
+        getCommonSourceDirectory(): string;
+        getCurrentDirectory(): string;
+    }
+
+    export function getResolvedExternalModuleName(host: ResolveModuleNameResolutionHost, file: SourceFile, referenceFile?: SourceFile): string {
         return file.moduleName || getExternalModuleNameFromPath(host, file.fileName, referenceFile && referenceFile.fileName);
     }
 
-    export function getExternalModuleNameFromDeclaration(host: EmitHost, resolver: EmitResolver, declaration: ImportEqualsDeclaration | ImportDeclaration | ExportDeclaration | ModuleDeclaration | ImportTypeNode): string | undefined {
+    export function getExternalModuleNameFromDeclaration(host: ResolveModuleNameResolutionHost, resolver: EmitResolver, declaration: ImportEqualsDeclaration | ImportDeclaration | ExportDeclaration | ModuleDeclaration | ImportTypeNode): string | undefined {
         const file = resolver.getExternalModuleFileFromDeclaration(declaration);
         if (!file || file.isDeclarationFile) {
             return undefined;
@@ -3465,7 +3494,7 @@ namespace ts {
     /**
      * Resolves a local path to a path which is absolute to the base of the emit
      */
-    export function getExternalModuleNameFromPath(host: EmitHost, fileName: string, referencePath?: string): string {
+    export function getExternalModuleNameFromPath(host: ResolveModuleNameResolutionHost, fileName: string, referencePath?: string): string {
         const getCanonicalFileName = (f: string) => host.getCanonicalFileName(f);
         const dir = toPath(referencePath ? getDirectoryPath(referencePath) : host.getCommonSourceDirectory(), host.getCurrentDirectory(), getCanonicalFileName);
         const filePath = getNormalizedAbsolutePath(fileName, host.getCurrentDirectory());
@@ -5224,6 +5253,17 @@ namespace ts {
         return name && isIdentifier(name) ? name : undefined;
     }
 
+    /** @internal */
+    export function nodeHasName(statement: Node, name: Identifier) {
+        if (isNamedDeclaration(statement) && isIdentifier(statement.name) && idText(statement.name as Identifier) === idText(name)) {
+            return true;
+        }
+        if (isVariableStatement(statement) && some(statement.declarationList.declarations, d => nodeHasName(d, name))) {
+            return true;
+        }
+        return false;
+    }
+
     export function getNameOfJSDocTypedef(declaration: JSDocTypedefTag): Identifier | undefined {
         return declaration.name || nameForNamelessJSDocTypedef(declaration);
     }
@@ -6145,7 +6185,7 @@ namespace ts {
         return node.kind === SyntaxKind.JSDocTypeExpression;
     }
 
-    export function isJSDocAllType(node: JSDocAllType): node is JSDocAllType {
+    export function isJSDocAllType(node: Node): node is JSDocAllType {
         return node.kind === SyntaxKind.JSDocAllType;
     }
 
@@ -6762,6 +6802,27 @@ namespace ts {
         return false;
     }
 
+    /* @internal */
+    export function isScopeMarker(node: Node) {
+        return isExportAssignment(node) || isExportDeclaration(node);
+    }
+
+    /* @internal */
+    export function hasScopeMarker(statements: readonly Statement[]) {
+        return some(statements, isScopeMarker);
+    }
+
+    /* @internal */
+    export function needsScopeMarker(result: Statement) {
+        return !isAnyImportOrReExport(result) && !isExportAssignment(result) && !hasModifier(result, ModifierFlags.Export) && !isAmbientModule(result);
+    }
+
+    /* @internal */
+    export function isExternalModuleIndicator(result: Statement) {
+        // Exported top-level member indicates moduleness
+        return isAnyImportOrReExport(result) || isExportAssignment(result) || hasModifier(result, ModifierFlags.Export);
+    }
+
     /* @internal */
     export function isForInOrOfStatement(node: Node): node is ForInOrOfStatement {
         return node.kind === SyntaxKind.ForInStatement || node.kind === SyntaxKind.ForOfStatement;

src/harness/compiler.ts

@@ -219,14 +219,19 @@ namespace compiler {
             return vpath.changeExtension(path, ext);
         }
 
-        public getNumberOfJsFiles() {
-            let count = this.js.size;
-            this.js.forEach(document => {
-                if (ts.fileExtensionIs(document.file, ts.Extension.Json)) {
-                    count--;
-                }
-            });
-            return count;
+        public getNumberOfJsFiles(includeJson: boolean) {
+            if (includeJson) {
+                return this.js.size;
+            }
+            else {
+                let count = this.js.size;
+                this.js.forEach(document => {
+                    if (ts.fileExtensionIs(document.file, ts.Extension.Json)) {
+                        count--;
+                    }
+                });
+                return count;
+            }
         }
     }
 

src/harness/harness.ts

@@ -888,7 +888,7 @@ namespace Harness {
                         throw new Error("Only declaration files should be generated when emitDeclarationOnly:true");
                     }
                 }
-                else if (result.dts.size !== result.getNumberOfJsFiles()) {
+                else if (result.dts.size !== result.getNumberOfJsFiles(/*includeJson*/ true)) {
                     throw new Error("There were no errors and declFiles generated did not match number of js files generated");
                 }
             }
@@ -907,7 +907,7 @@ namespace Harness {
                 if (vpath.isDeclaration(file.unitName) || vpath.isJson(file.unitName)) {
                     dtsFiles.push(file);
                 }
-                else if (vpath.isTypeScript(file.unitName)) {
+                else if (vpath.isTypeScript(file.unitName) || (vpath.isJavaScript(file.unitName) && options.allowJs)) {
                     const declFile = findResultCodeFile(file.unitName);
                     if (declFile && !findUnit(declFile.file, declInputFiles) && !findUnit(declFile.file, declOtherFiles)) {
                         dtsFiles.push({ unitName: declFile.file, content: utils.removeByteOrderMark(declFile.text) });
@@ -1269,7 +1269,7 @@ namespace Harness {
                 return;
             }
             else if (options.sourceMap || declMaps) {
-                if (result.maps.size !== (result.getNumberOfJsFiles() * (declMaps && options.sourceMap ? 2 : 1))) {
+                if (result.maps.size !== ((options.sourceMap ? result.getNumberOfJsFiles(/*includeJson*/ false) : 0) + (declMaps ? result.getNumberOfJsFiles(/*includeJson*/ true) : 0))) {
                     throw new Error("Number of sourcemap files should be same as js files.");
                 }
 

src/services/utilities.ts

@@ -1971,8 +1971,7 @@ namespace ts {
         const notAccessible = () => { typeIsAccessible = false; };
         const res = checker.typeToTypeNode(type, enclosingScope, /*flags*/ undefined, {
             trackSymbol: (symbol, declaration, meaning) => {
-                // TODO: GH#18217
-                typeIsAccessible = typeIsAccessible && checker.isSymbolAccessible(symbol, declaration, meaning!, /*shouldComputeAliasToMarkVisible*/ false).accessibility === SymbolAccessibility.Accessible;
+                typeIsAccessible = typeIsAccessible && checker.isSymbolAccessible(symbol, declaration, meaning, /*shouldComputeAliasToMarkVisible*/ false).accessibility === SymbolAccessibility.Accessible;
             },
             reportInaccessibleThisError: notAccessible,
             reportPrivateInBaseOfClassExpression: notAccessible,

src/testRunner/tsconfig.json

@@ -99,6 +99,7 @@
         "unittests/tsbuild/emptyFiles.ts",
         "unittests/tsbuild/graphOrdering.ts",
         "unittests/tsbuild/inferredTypeFromTransitiveModule.ts",
+        "unittests/tsbuild/javascriptProjectEmit.ts",
         "unittests/tsbuild/lateBoundSymbol.ts",
         "unittests/tsbuild/missingExtendedFile.ts",
         "unittests/tsbuild/moduleSpecifiers.ts",

src/testRunner/unittests/tsbuild/javascriptProjectEmit.ts

@@ -0,0 +1,286 @@
+namespace ts {
+    describe("unittests:: tsbuild:: javascriptProjectEmit:: loads js-based projects and emits them correctly", () => {
+        verifyTsc({
+            scenario: "javascriptProjectEmit",
+            subScenario: `loads js-based projects and emits them correctly`,
+            fs: () => loadProjectFromFiles({
+                "/src/common/nominal.js": utils.dedent`
+                    /**
+                     * @template T, Name
+                     * @typedef {T & {[Symbol.species]: Name}} Nominal
+                     */
+                    module.exports = {};
+                    `,
+                "/src/common/tsconfig.json": utils.dedent`
+                    {
+                        "extends": "../tsconfig.base.json",
+                        "compilerOptions": {
+                            "composite": true
+                        },
+                        "include": ["nominal.js"]
+                    }`,
+                "/src/sub-project/index.js": utils.dedent`
+                    import { Nominal } from '../common/nominal';
+
+                    /**
+                     * @typedef {Nominal<string, 'MyNominal'>} MyNominal
+                     */
+                    `,
+                "/src/sub-project/tsconfig.json": utils.dedent`
+                    {
+                        "extends": "../tsconfig.base.json",
+                        "compilerOptions": {
+                            "composite": true
+                        },
+                        "references": [
+                            { "path": "../common" }
+                        ],
+                        "include": ["./index.js"]
+                    }`,
+                "/src/sub-project-2/index.js": utils.dedent`
+                    import { MyNominal } from '../sub-project/index';
+
+                    const variable = {
+                        key: /** @type {MyNominal} */('value'),
+                    };
+
+                    /**
+                     * @return {keyof typeof variable}
+                     */
+                    export function getVar() {
+                        return 'key';
+                    }
+                    `,
+                "/src/sub-project-2/tsconfig.json": utils.dedent`
+                    {
+                        "extends": "../tsconfig.base.json",
+                        "compilerOptions": {
+                            "composite": true
+                        },
+                        "references": [
+                            { "path": "../sub-project" }
+                        ],
+                        "include": ["./index.js"]
+                    }`,
+                "/src/tsconfig.json": utils.dedent`
+                    {
+                        "compilerOptions": {
+                            "composite": true
+                        },
+                        "references": [
+                            { "path": "./sub-project" },
+                            { "path": "./sub-project-2" }
+                        ],
+                        "include": []
+                    }`,
+                "/src/tsconfig.base.json": utils.dedent`
+                    {
+                        "compilerOptions": {
+                            "skipLibCheck": true,
+                            "rootDir": "./",
+                            "outDir": "../lib",
+                            "allowJs": true,
+                            "checkJs": true,
+                            "declaration": true
+                        }
+                    }`,
+            }, symbolLibContent),
+            commandLineArgs: ["-b", "/src"]
+        });
+    });
+
+    describe("unittests:: tsbuild:: javascriptProjectEmit:: loads outfile js projects and concatenates them correctly", () => {
+        let projFs: vfs.FileSystem;
+        before(() => {
+            projFs = loadProjectFromFiles({
+                "/src/common/nominal.js": utils.dedent`
+                    /**
+                     * @template T, Name
+                     * @typedef {T & {[Symbol.species]: Name}} Nominal
+                     */
+                    `,
+                "/src/common/tsconfig.json": utils.dedent`
+                    {
+                        "extends": "../tsconfig.base.json",
+                        "compilerOptions": {
+                            "composite": true,
+                            "outFile": "common.js"
+                        },
+                        "include": ["nominal.js"]
+                    }`,
+                "/src/sub-project/index.js": utils.dedent`
+                    /**
+                     * @typedef {Nominal<string, 'MyNominal'>} MyNominal
+                     */
+                    const c = /** @type {*} */(null);
+                    `,
+                "/src/sub-project/tsconfig.json": utils.dedent`
+                    {
+                        "extends": "../tsconfig.base.json",
+                        "compilerOptions": {
+                            "composite": true,
+                            "outFile": "sub-project.js"
+                        },
+                        "references": [
+                            { "path": "../common", "prepend": true }
+                        ],
+                        "include": ["./index.js"]
+                    }`,
+                "/src/sub-project-2/index.js": utils.dedent`
+                    const variable = {
+                        key: /** @type {MyNominal} */('value'),
+                    };
+
+                    /**
+                     * @return {keyof typeof variable}
+                     */
+                    function getVar() {
+                        return 'key';
+                    }
+                    `,
+                "/src/sub-project-2/tsconfig.json": utils.dedent`
+                    {
+                        "extends": "../tsconfig.base.json",
+                        "compilerOptions": {
+                            "composite": true,
+                            "outFile": "sub-project-2.js"
+                        },
+                        "references": [
+                            { "path": "../sub-project", "prepend": true }
+                        ],
+                        "include": ["./index.js"]
+                    }`,
+                "/src/tsconfig.json": utils.dedent`
+                    {
+                        "compilerOptions": {
+                            "composite": true,
+                            "outFile": "src.js"
+                        },
+                        "references": [
+                            { "path": "./sub-project", "prepend": true },
+                            { "path": "./sub-project-2", "prepend": true }
+                        ],
+                        "include": []
+                    }`,
+                "/src/tsconfig.base.json": utils.dedent`
+                    {
+                        "compilerOptions": {
+                            "skipLibCheck": true,
+                            "rootDir": "./",
+                            "allowJs": true,
+                            "checkJs": true,
+                            "declaration": true
+                        }
+                    }`,
+            }, symbolLibContent);
+        });
+        after(() => {
+            projFs = undefined!;
+        });
+        verifyTsc({
+            scenario: "javascriptProjectEmit",
+            subScenario: `loads outfile js projects and concatenates them correctly`,
+            fs: () => projFs,
+            commandLineArgs: ["-b", "/src"]
+        });
+        verifyTscIncrementalEdits({
+            scenario: "javascriptProjectEmit",
+            subScenario: `modifies outfile js projects and concatenates them correctly`,
+            fs: () => projFs,
+            commandLineArgs: ["-b", "/src"],
+            incrementalScenarios: [{
+                buildKind: BuildKind.IncrementalDtsUnchanged,
+                modifyFs: fs => replaceText(fs, "/src/sub-project/index.js", "null", "undefined")
+            }]
+        });
+    });
+
+    describe("unittests:: tsbuild:: javascriptProjectEmit:: loads js-based projects with non-moved json files and emits them correctly", () => {
+        verifyTsc({
+            scenario: "javascriptProjectEmit",
+            subScenario: `loads js-based projects with non-moved json files and emits them correctly`,
+            fs: () => loadProjectFromFiles({
+                "/src/common/obj.json": utils.dedent`
+                    {
+                        "val": 42
+                    }`,
+                "/src/common/index.ts": utils.dedent`
+                    import x = require("./obj.json");
+                    export = x;
+                    `,
+                "/src/common/tsconfig.json": utils.dedent`
+                    {
+                        "extends": "../tsconfig.base.json",
+                        "compilerOptions": {
+                            "outDir": null
+                            "composite": true
+                        },
+                        "include": ["index.ts", "obj.json"]
+                    }`,
+                "/src/sub-project/index.js": utils.dedent`
+                    import mod from '../common';
+
+                    export const m = mod;
+                    `,
+                "/src/sub-project/tsconfig.json": utils.dedent`
+                    {
+                        "extends": "../tsconfig.base.json",
+                        "compilerOptions": {
+                            "composite": true
+                        },
+                        "references": [
+                            { "path": "../common" }
+                        ],
+                        "include": ["./index.js"]
+                    }`,
+                "/src/sub-project-2/index.js": utils.dedent`
+                    import { m } from '../sub-project/index';
+
+                    const variable = {
+                        key: m,
+                    };
+
+                    export function getVar() {
+                        return variable;
+                    }
+                    `,
+                "/src/sub-project-2/tsconfig.json": utils.dedent`
+                    {
+                        "extends": "../tsconfig.base.json",
+                        "compilerOptions": {
+                            "composite": true
+                        },
+                        "references": [
+                            { "path": "../sub-project" }
+                        ],
+                        "include": ["./index.js"]
+                    }`,
+                "/src/tsconfig.json": utils.dedent`
+                    {
+                        "compilerOptions": {
+                            "composite": true
+                        },
+                        "references": [
+                            { "path": "./sub-project" },
+                            { "path": "./sub-project-2" }
+                        ],
+                        "include": []
+                    }`,
+                "/src/tsconfig.base.json": utils.dedent`
+                    {
+                        "compilerOptions": {
+                            "skipLibCheck": true,
+                            "rootDir": "./",
+                            "outDir": "../out",
+                            "allowJs": true,
+                            "checkJs": true,
+                            "resolveJsonModule": true,
+                            "esModuleInterop": true,
+                            "declaration": true
+                        }
+                    }`,
+            }, symbolLibContent),
+            commandLineArgs: ["-b", "/src"]
+        });
+    });
+}

src/testRunner/unittests/tsbuild/resolveJsonModule.ts

@@ -52,7 +52,12 @@ namespace ts {
 
 export default hello.hello`);
             const allExpectedOutputs = ["/src/dist/src/index.js", "/src/dist/src/index.d.ts", "/src/dist/src/index.json"];
-            verifyProjectWithResolveJsonModuleWithFs(fs, "/src/tsconfig_withIncludeOfJson.json", allExpectedOutputs);
+            verifyProjectWithResolveJsonModuleWithFs(
+                fs,
+                "/src/tsconfig_withIncludeOfJson.json",
+                allExpectedOutputs,
+                errorDiagnostic([Diagnostics.Cannot_write_file_0_because_it_would_be_overwritten_by_multiple_input_files, "/src/dist/src/index.d.ts"])
+            );
         });
 
         it("with resolveJsonModule and files containing json file", () => {

src/testRunner/unittests/tscWatch/programUpdates.ts

@@ -885,8 +885,8 @@ namespace ts.tscWatch {
                     // More comment`;
             const configFileContentAfterComment = `
                     "compilerOptions": {
-                        "allowJs": true,
-                        "declaration": true
+                        "inlineSourceMap": true,
+                        "mapRoot": "./"
                     }
                 }`;
             const configFileContentWithComment = configFileContentBeforeComment + configFileContentComment + configFileContentAfterComment;
@@ -900,8 +900,9 @@ namespace ts.tscWatch {
             const host = createWatchedSystem(files);
             const watch = createWatchOfConfigFile(configFile.path, host);
             const errors = () => [
-                getDiagnosticOfFile(watch().getCompilerOptions().configFile!, configFile.content.indexOf('"allowJs"'), '"allowJs"'.length, Diagnostics.Option_0_cannot_be_specified_with_option_1, "allowJs", "declaration"),
-                getDiagnosticOfFile(watch().getCompilerOptions().configFile!, configFile.content.indexOf('"declaration"'), '"declaration"'.length, Diagnostics.Option_0_cannot_be_specified_with_option_1, "allowJs", "declaration")
+                getDiagnosticOfFile(watch().getCompilerOptions().configFile!, configFile.content.indexOf('"inlineSourceMap"'), '"inlineSourceMap"'.length, Diagnostics.Option_0_cannot_be_specified_with_option_1, "mapRoot", "inlineSourceMap"),
+                getDiagnosticOfFile(watch().getCompilerOptions().configFile!, configFile.content.indexOf('"mapRoot"'), '"mapRoot"'.length, Diagnostics.Option_0_cannot_be_specified_with_option_1, "mapRoot", "inlineSourceMap"),
+                getDiagnosticOfFile(watch().getCompilerOptions().configFile!, configFile.content.indexOf('"mapRoot"'), '"mapRoot"'.length, Diagnostics.Option_0_cannot_be_specified_without_specifying_option_1_or_option_2, "mapRoot", "sourceMap", "declarationMap")
             ];
             const intialErrors = errors();
             checkOutputErrorsInitial(host, intialErrors);

src/testRunner/unittests/tsserver/projectErrors.ts

@@ -849,8 +849,8 @@ declare module '@custom/plugin' {
                 // comment`;
             const configFileContentAfterComment = `
                 "compilerOptions": {
-                    "allowJs": true,
-                    "declaration": true
+                    "inlineSourceMap": true,
+                    "mapRoot": "./"
                 }
             }`;
             const configFileContentWithComment = configFileContentBeforeComment + configFileContentComment + configFileContentAfterComment;
@@ -874,7 +874,7 @@ declare module '@custom/plugin' {
                 seq: 2,
                 arguments: { file: configFile.path, projectFileName: projectName, includeLinePosition: true }
             }).response as readonly server.protocol.DiagnosticWithLinePosition[];
-            assert.isTrue(diags.length === 2);
+            assert.isTrue(diags.length === 3);
 
             configFile.content = configFileContentWithoutCommentLine;
             host.reloadFS([file, configFile]);
@@ -885,10 +885,11 @@ declare module '@custom/plugin' {
                 seq: 2,
                 arguments: { file: configFile.path, projectFileName: projectName, includeLinePosition: true }
             }).response as readonly server.protocol.DiagnosticWithLinePosition[];
-            assert.isTrue(diagsAfterEdit.length === 2);
+            assert.isTrue(diagsAfterEdit.length === 3);
 
             verifyDiagnostic(diags[0], diagsAfterEdit[0]);
             verifyDiagnostic(diags[1], diagsAfterEdit[1]);
+            verifyDiagnostic(diags[2], diagsAfterEdit[2]);
 
             function verifyDiagnostic(beforeEditDiag: server.protocol.DiagnosticWithLinePosition, afterEditDiag: server.protocol.DiagnosticWithLinePosition) {
                 assert.equal(beforeEditDiag.message, afterEditDiag.message);

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

@@ -3586,7 +3586,7 @@ declare namespace ts {
     function isUnparsedTextLike(node: Node): node is UnparsedTextLike;
     function isUnparsedNode(node: Node): node is UnparsedNode;
     function isJSDocTypeExpression(node: Node): node is JSDocTypeExpression;
-    function isJSDocAllType(node: JSDocAllType): node is JSDocAllType;
+    function isJSDocAllType(node: Node): node is JSDocAllType;
     function isJSDocUnknownType(node: Node): node is JSDocUnknownType;
     function isJSDocNullableType(node: Node): node is JSDocNullableType;
     function isJSDocNonNullableType(node: Node): node is JSDocNonNullableType;

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

@@ -3586,7 +3586,7 @@ declare namespace ts {
     function isUnparsedTextLike(node: Node): node is UnparsedTextLike;
     function isUnparsedNode(node: Node): node is UnparsedNode;
     function isJSDocTypeExpression(node: Node): node is JSDocTypeExpression;
-    function isJSDocAllType(node: JSDocAllType): node is JSDocAllType;
+    function isJSDocAllType(node: Node): node is JSDocAllType;
     function isJSDocUnknownType(node: Node): node is JSDocUnknownType;
     function isJSDocNullableType(node: Node): node is JSDocNullableType;
     function isJSDocNonNullableType(node: Node): node is JSDocNonNullableType;

tests/baselines/reference/augmentExportEquals3.types

@@ -10,7 +10,7 @@ namespace foo {
 >1 : 1
 }
 export = foo;
->foo : typeof foo
+>foo : typeof import("tests/cases/compiler/file1")
 
 === tests/cases/compiler/file2.ts ===
 import x = require("./file1"); 

tests/baselines/reference/augmentExportEquals4.types

@@ -10,7 +10,7 @@ namespace foo {
 >1 : 1
 }
 export = foo;
->foo : foo
+>foo : import("tests/cases/compiler/file1")
 
 === tests/cases/compiler/file2.ts ===
 import x = require("./file1"); 

tests/baselines/reference/augmentExportEquals5.symbols

@@ -18,7 +18,7 @@ declare module "express" {
     function e(): e.Express;
 >e : Symbol(e, Decl(express.d.ts, 6, 26), Decl(express.d.ts, 7, 28), Decl(augmentation.ts, 1, 29))
 >e : Symbol(e, Decl(express.d.ts, 6, 26), Decl(express.d.ts, 7, 28))
->Express : Symbol(Express, Decl(express.d.ts, 52, 9))
+>Express : Symbol(e.Express, Decl(express.d.ts, 52, 9))
 
     namespace e {
 >e : Symbol(e, Decl(express.d.ts, 6, 26), Decl(express.d.ts, 7, 28), Decl(augmentation.ts, 1, 29))

tests/baselines/reference/augmentExportEquals6.types

@@ -13,7 +13,7 @@ namespace foo {
 >a : any
 }
 export = foo;
->foo : foo
+>foo : import("tests/cases/compiler/file1")
 
 === tests/cases/compiler/file2.ts ===
 import x = require("./file1"); 

tests/baselines/reference/checkJsTypeDefNoUnusedLocalMarked.types

@@ -22,11 +22,11 @@ export = Foo;
 /** @typedef {(foo: Foo) => string} FooFun */
 
 module.exports = /** @type {FooFun} */(void 0);
->module.exports = /** @type {FooFun} */(void 0) : (foo: typeof Foo) => string
->module.exports : (foo: typeof Foo) => string
->module : { "tests/cases/compiler/something": (foo: typeof Foo) => string; }
->exports : (foo: typeof Foo) => string
->(void 0) : (foo: typeof Foo) => string
+>module.exports = /** @type {FooFun} */(void 0) : (foo: typeof import("tests/cases/compiler/file")) => string
+>module.exports : (foo: typeof import("tests/cases/compiler/file")) => string
+>module : { "tests/cases/compiler/something": (foo: typeof import("tests/cases/compiler/file")) => string; }
+>exports : (foo: typeof import("tests/cases/compiler/file")) => string
+>(void 0) : (foo: typeof import("tests/cases/compiler/file")) => string
 >void 0 : undefined
 >0 : 0
 

tests/baselines/reference/constructorFunctions2.types

@@ -9,16 +9,16 @@ declare var module: any, exports: any;
 
 === tests/cases/conformance/salsa/index.js ===
 const A = require("./other");
->A : typeof A
->require("./other") : typeof A
+>A : typeof import("tests/cases/conformance/salsa/other")
+>require("./other") : typeof import("tests/cases/conformance/salsa/other")
 >require : (id: string) => any
 >"./other" : "./other"
 
 const a = new A().id;
 >a : number
 >new A().id : number
->new A() : A
->A : typeof A
+>new A() : import("tests/cases/conformance/salsa/other")
+>A : typeof import("tests/cases/conformance/salsa/other")
 >id : number
 
 const B = function() { this.id = 1; }

tests/baselines/reference/declarationEmitNameConflicts.js

@@ -167,7 +167,7 @@ export declare module M.P {
     var a: typeof M.f;
     var b: typeof M.C;
     var c: typeof M.N;
-    var g: typeof M.c.g;
+    var g: typeof M.N.g;
     var d: typeof M.d;
 }
 export declare module M.Q {

tests/baselines/reference/declarationFileNoCrashOnExtraExportModifier.errors.txt

@@ -0,0 +1,22 @@
+tests/cases/compiler/input.ts(1,1): error TS2309: An export assignment cannot be used in a module with other exported elements.
+tests/cases/compiler/input.ts(6,14): error TS2323: Cannot redeclare exported variable 'Sub'.
+
+
+==== tests/cases/compiler/input.ts (2 errors) ====
+    export = exports;
+    ~~~~~~~~~~~~~~~~~
+!!! error TS2309: An export assignment cannot be used in a module with other exported elements.
+    declare class exports {
+        constructor(p: number);
+        t: number;
+    }
+    export class Sub {
+                 ~~~
+!!! error TS2323: Cannot redeclare exported variable 'Sub'.
+        instance!: {
+            t: number;
+        };
+    }
+    declare namespace exports {
+        export { Sub };
+    }

tests/baselines/reference/declarationFileNoCrashOnExtraExportModifier.js

@@ -0,0 +1,23 @@
+//// [input.ts]
+export = exports;
+declare class exports {
+    constructor(p: number);
+    t: number;
+}
+export class Sub {
+    instance!: {
+        t: number;
+    };
+}
+declare namespace exports {
+    export { Sub };
+}
+
+//// [input.js]
+"use strict";
+var Sub = /** @class */ (function () {
+    function Sub() {
+    }
+    return Sub;
+}());
+module.exports = exports;

tests/baselines/reference/declarationFileNoCrashOnExtraExportModifier.symbols

@@ -0,0 +1,30 @@
+=== tests/cases/compiler/input.ts ===
+export = exports;
+>exports : Symbol(exports, Decl(input.ts, 0, 17), Decl(input.ts, 9, 1))
+
+declare class exports {
+>exports : Symbol(exports, Decl(input.ts, 0, 17), Decl(input.ts, 9, 1))
+
+    constructor(p: number);
+>p : Symbol(p, Decl(input.ts, 2, 16))
+
+    t: number;
+>t : Symbol(exports.t, Decl(input.ts, 2, 27))
+}
+export class Sub {
+>Sub : Symbol(Sub, Decl(input.ts, 4, 1), Decl(input.ts, 4, 1))
+
+    instance!: {
+>instance : Symbol(Sub.instance, Decl(input.ts, 5, 18))
+
+        t: number;
+>t : Symbol(t, Decl(input.ts, 6, 16))
+
+    };
+}
+declare namespace exports {
+>exports : Symbol(exports, Decl(input.ts, 0, 17), Decl(input.ts, 9, 1))
+
+    export { Sub };
+>Sub : Symbol(exports.Sub, Decl(input.ts, 11, 12))
+}

tests/baselines/reference/declarationFileNoCrashOnExtraExportModifier.types

@@ -0,0 +1,30 @@
+=== tests/cases/compiler/input.ts ===
+export = exports;
+>exports : import("tests/cases/compiler/input")
+
+declare class exports {
+>exports : exports
+
+    constructor(p: number);
+>p : number
+
+    t: number;
+>t : number
+}
+export class Sub {
+>Sub : Sub
+
+    instance!: {
+>instance : { t: number; }
+
+        t: number;
+>t : number
+
+    };
+}
+declare namespace exports {
+>exports : typeof exports
+
+    export { Sub };
+>Sub : typeof import("tests/cases/compiler/input").Sub
+}

tests/baselines/reference/declarationImportTypeAliasInferredAndEmittable.js

@@ -0,0 +1,57 @@
+//// [tests/cases/compiler/declarationImportTypeAliasInferredAndEmittable.ts] ////
+
+//// [foo.ts]
+class Conn {
+    constructor() { }
+    item = 3;
+    method() { }
+}
+
+export = Conn;
+//// [usage.ts]
+type Conn = import("./foo");
+declare var x: Conn;
+
+export class Wrap {
+    connItem: number;
+    constructor(c = x) {
+        this.connItem = c.item;
+    }
+}
+
+
+//// [foo.js]
+"use strict";
+var Conn = /** @class */ (function () {
+    function Conn() {
+        this.item = 3;
+    }
+    Conn.prototype.method = function () { };
+    return Conn;
+}());
+module.exports = Conn;
+//// [usage.js]
+"use strict";
+exports.__esModule = true;
+var Wrap = /** @class */ (function () {
+    function Wrap(c) {
+        if (c === void 0) { c = x; }
+        this.connItem = c.item;
+    }
+    return Wrap;
+}());
+exports.Wrap = Wrap;
+
+
+//// [foo.d.ts]
+declare class Conn {
+    constructor();
+    item: number;
+    method(): void;
+}
+export = Conn;
+//// [usage.d.ts]
+export declare class Wrap {
+    connItem: number;
+    constructor(c?: import("./foo"));
+}

tests/baselines/reference/declarationImportTypeAliasInferredAndEmittable.symbols

@@ -0,0 +1,43 @@
+=== tests/cases/compiler/foo.ts ===
+class Conn {
+>Conn : Symbol(Conn, Decl(foo.ts, 0, 0))
+
+    constructor() { }
+    item = 3;
+>item : Symbol(Conn.item, Decl(foo.ts, 1, 21))
+
+    method() { }
+>method : Symbol(Conn.method, Decl(foo.ts, 2, 13))
+}
+
+export = Conn;
+>Conn : Symbol(Conn, Decl(foo.ts, 0, 0))
+
+=== tests/cases/compiler/usage.ts ===
+type Conn = import("./foo");
+>Conn : Symbol(Conn, Decl(usage.ts, 0, 0))
+
+declare var x: Conn;
+>x : Symbol(x, Decl(usage.ts, 1, 11))
+>Conn : Symbol(Conn, Decl(usage.ts, 0, 0))
+
+export class Wrap {
+>Wrap : Symbol(Wrap, Decl(usage.ts, 1, 20))
+
+    connItem: number;
+>connItem : Symbol(Wrap.connItem, Decl(usage.ts, 3, 19))
+
+    constructor(c = x) {
+>c : Symbol(c, Decl(usage.ts, 5, 16))
+>x : Symbol(x, Decl(usage.ts, 1, 11))
+
+        this.connItem = c.item;
+>this.connItem : Symbol(Wrap.connItem, Decl(usage.ts, 3, 19))
+>this : Symbol(Wrap, Decl(usage.ts, 1, 20))
+>connItem : Symbol(Wrap.connItem, Decl(usage.ts, 3, 19))
+>c.item : Symbol(Conn.item, Decl(foo.ts, 1, 21))
+>c : Symbol(c, Decl(usage.ts, 5, 16))
+>item : Symbol(Conn.item, Decl(foo.ts, 1, 21))
+    }
+}
+

tests/baselines/reference/declarationImportTypeAliasInferredAndEmittable.types

@@ -0,0 +1,44 @@
+=== tests/cases/compiler/foo.ts ===
+class Conn {
+>Conn : Conn
+
+    constructor() { }
+    item = 3;
+>item : number
+>3 : 3
+
+    method() { }
+>method : () => void
+}
+
+export = Conn;
+>Conn : Conn
+
+=== tests/cases/compiler/usage.ts ===
+type Conn = import("./foo");
+>Conn : import("tests/cases/compiler/foo")
+
+declare var x: Conn;
+>x : import("tests/cases/compiler/foo")
+
+export class Wrap {
+>Wrap : Wrap
+
+    connItem: number;
+>connItem : number
+
+    constructor(c = x) {
+>c : import("tests/cases/compiler/foo")
+>x : import("tests/cases/compiler/foo")
+
+        this.connItem = c.item;
+>this.connItem = c.item : number
+>this.connItem : number
+>this : this
+>connItem : number
+>c.item : number
+>c : import("tests/cases/compiler/foo")
+>item : number
+    }
+}
+

tests/baselines/reference/duplicateExportAssignments.types

@@ -29,7 +29,7 @@ export = y;
 
 === tests/cases/conformance/externalModules/foo3.ts ===
 module x {
->x : typeof x
+>x : typeof import("tests/cases/conformance/externalModules/foo3")
 
 	export var x = 10;
 >x : number

tests/baselines/reference/es5ExportEquals.types

@@ -3,5 +3,5 @@ export function f() { }
 >f : typeof f
 
 export = f;
->f : { (): void; f: typeof import("tests/cases/compiler/es5ExportEquals").f; }
+>f : { (): void; f: typeof import("tests/cases/compiler/es5ExportEquals"); }
 

tests/baselines/reference/es6ExportEquals.types

@@ -3,5 +3,5 @@ export function f() { }
 >f : typeof f
 
 export = f;
->f : { (): void; f: typeof import("tests/cases/compiler/es6ExportEquals").f; }
+>f : { (): void; f: typeof import("tests/cases/compiler/es6ExportEquals"); }
 

tests/baselines/reference/exportAssignmentAndDeclaration.types

@@ -15,5 +15,5 @@ class C1 {
 
 // Invalid, as there is already an exported member.
 export = C1;
->C1 : C1
+>C1 : import("tests/cases/conformance/externalModules/foo_0")
 

tests/baselines/reference/exportAssignmentWithExports.types

@@ -6,5 +6,5 @@ class D { }
 >D : D
 
 export = D;
->D : D
+>D : import("tests/cases/compiler/exportAssignmentWithExports")
 

tests/baselines/reference/importTypeGenericTypes.types

@@ -55,7 +55,7 @@ export { Bar }
 
 === tests/cases/conformance/types/import/usage.ts ===
 export const x: import("./foo")<{x: number}> = { x: 0, y: 0, data: {x: 12} };
->x : Point<{ x: number; }>
+>x : import("tests/cases/conformance/types/import/foo")<{ x: number; }>
 >x : number
 >{ x: 0, y: 0, data: {x: 12} } : { x: number; y: number; data: { x: number; }; }
 >x : number

tests/baselines/reference/importTypeInJSDoc.types

@@ -37,20 +37,20 @@ export = MyClass;
  */
 
 let a = /** @type {Foo} */(/** @type {*} */(undefined)); 
->a : MyClass
->(/** @type {*} */(undefined)) : MyClass
+>a : import("tests/cases/conformance/types/import/externs")
+>(/** @type {*} */(undefined)) : import("tests/cases/conformance/types/import/externs")
 >(undefined) : any
 >undefined : undefined
 
 a = new Foo({doer: Foo.Bar});
->a = new Foo({doer: Foo.Bar}) : MyClass
->a : MyClass
->new Foo({doer: Foo.Bar}) : MyClass
->Foo : typeof MyClass
+>a = new Foo({doer: Foo.Bar}) : import("tests/cases/conformance/types/import/externs")
+>a : import("tests/cases/conformance/types/import/externs")
+>new Foo({doer: Foo.Bar}) : import("tests/cases/conformance/types/import/externs")
+>Foo : typeof import("tests/cases/conformance/types/import/externs")
 >{doer: Foo.Bar} : { doer: (x: string, y?: number) => void; }
 >doer : (x: string, y?: number) => void
 >Foo.Bar : (x: string, y?: number) => void
->Foo : typeof MyClass
+>Foo : typeof import("tests/cases/conformance/types/import/externs")
 >Bar : (x: string, y?: number) => void
 
 const q = /** @type {import("./externs").Bar} */({ doer: q => q });

tests/baselines/reference/importTypeLocal.types

@@ -46,7 +46,7 @@ export { Bar }
 
 === tests/cases/conformance/types/import/usage.ts ===
 export const x: import("./foo") = { x: 0, y: 0 };
->x : Point
+>x : import("tests/cases/conformance/types/import/foo")
 >{ x: 0, y: 0 } : { x: number; y: number; }
 >x : number
 >0 : 0

tests/baselines/reference/jsDeclarationsClassExtendsVisibility.js

@@ -0,0 +1,68 @@
+//// [tests/cases/conformance/jsdoc/declarations/jsDeclarationsClassExtendsVisibility.ts] ////
+
+//// [bar.js]
+class Bar {}
+module.exports = Bar;
+//// [cls.js]
+const Bar = require("./bar");
+const Strings = {
+    a: "A",
+    b: "B"
+};
+class Foo extends Bar {}
+module.exports = Foo;
+module.exports.Strings = Strings;
+
+//// [bar.js]
+var Bar = /** @class */ (function () {
+    function Bar() {
+    }
+    return Bar;
+}());
+module.exports = Bar;
+//// [cls.js]
+var __extends = (this && this.__extends) || (function () {
+    var extendStatics = function (d, b) {
+        extendStatics = Object.setPrototypeOf ||
+            ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
+            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+        return extendStatics(d, b);
+    };
+    return function (d, b) {
+        extendStatics(d, b);
+        function __() { this.constructor = d; }
+        d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
+    };
+})();
+var Bar = require("./bar");
+var Strings = {
+    a: "A",
+    b: "B"
+};
+var Foo = /** @class */ (function (_super) {
+    __extends(Foo, _super);
+    function Foo() {
+        return _super !== null && _super.apply(this, arguments) || this;
+    }
+    return Foo;
+}(Bar));
+module.exports = Foo;
+module.exports.Strings = Strings;
+
+
+//// [bar.d.ts]
+export = Bar;
+declare class Bar {
+}
+//// [cls.d.ts]
+export = Foo;
+declare const Foo_base: typeof import("./bar");
+declare class Foo extends Foo_base {
+}
+declare namespace Foo {
+    export { Strings };
+}
+declare namespace Strings {
+    export const a: string;
+    export const b: string;
+}

tests/baselines/reference/jsDeclarationsClassExtendsVisibility.symbols

@@ -0,0 +1,44 @@
+=== tests/cases/conformance/jsdoc/declarations/cls.js ===
+const Bar = require("./bar");
+>Bar : Symbol(Bar, Decl(cls.js, 0, 5))
+>require : Symbol(require)
+>"./bar" : Symbol("tests/cases/conformance/jsdoc/declarations/bar", Decl(bar.js, 0, 0))
+
+const Strings = {
+>Strings : Symbol(Strings, Decl(cls.js, 1, 5))
+
+    a: "A",
+>a : Symbol(a, Decl(cls.js, 1, 17))
+
+    b: "B"
+>b : Symbol(b, Decl(cls.js, 2, 11))
+
+};
+class Foo extends Bar {}
+>Foo : Symbol(Foo, Decl(cls.js, 4, 2))
+>Bar : Symbol(Bar, Decl(cls.js, 0, 5))
+
+module.exports = Foo;
+>module.exports : Symbol("tests/cases/conformance/jsdoc/declarations/cls", Decl(cls.js, 0, 0))
+>module : Symbol(export=, Decl(cls.js, 5, 24))
+>exports : Symbol(export=, Decl(cls.js, 5, 24))
+>Foo : Symbol(Foo, Decl(cls.js, 4, 2))
+
+module.exports.Strings = Strings;
+>module.exports.Strings : Symbol(Strings)
+>module.exports : Symbol(Strings, Decl(cls.js, 6, 21))
+>module : Symbol(module, Decl(cls.js, 5, 24))
+>exports : Symbol("tests/cases/conformance/jsdoc/declarations/cls", Decl(cls.js, 0, 0))
+>Strings : Symbol(Strings, Decl(cls.js, 6, 21))
+>Strings : Symbol(Strings, Decl(cls.js, 1, 5))
+
+=== tests/cases/conformance/jsdoc/declarations/bar.js ===
+class Bar {}
+>Bar : Symbol(Bar, Decl(bar.js, 0, 0))
+
+module.exports = Bar;
+>module.exports : Symbol("tests/cases/conformance/jsdoc/declarations/bar", Decl(bar.js, 0, 0))
+>module : Symbol(export=, Decl(bar.js, 0, 12))
+>exports : Symbol(export=, Decl(bar.js, 0, 12))
+>Bar : Symbol(Bar, Decl(bar.js, 0, 0))
+

tests/baselines/reference/jsDeclarationsClassExtendsVisibility.types

@@ -0,0 +1,51 @@
+=== tests/cases/conformance/jsdoc/declarations/cls.js ===
+const Bar = require("./bar");
+>Bar : typeof import("tests/cases/conformance/jsdoc/declarations/bar")
+>require("./bar") : typeof import("tests/cases/conformance/jsdoc/declarations/bar")
+>require : any
+>"./bar" : "./bar"
+
+const Strings = {
+>Strings : { a: string; b: string; }
+>{    a: "A",    b: "B"} : { a: string; b: string; }
+
+    a: "A",
+>a : string
+>"A" : "A"
+
+    b: "B"
+>b : string
+>"B" : "B"
+
+};
+class Foo extends Bar {}
+>Foo : Foo
+>Bar : import("tests/cases/conformance/jsdoc/declarations/bar")
+
+module.exports = Foo;
+>module.exports = Foo : typeof Foo
+>module.exports : typeof Foo
+>module : { "tests/cases/conformance/jsdoc/declarations/cls": typeof Foo; }
+>exports : typeof Foo
+>Foo : typeof Foo
+
+module.exports.Strings = Strings;
+>module.exports.Strings = Strings : { a: string; b: string; }
+>module.exports.Strings : { a: string; b: string; }
+>module.exports : typeof Foo
+>module : { "tests/cases/conformance/jsdoc/declarations/cls": typeof Foo; }
+>exports : typeof Foo
+>Strings : { a: string; b: string; }
+>Strings : { a: string; b: string; }
+
+=== tests/cases/conformance/jsdoc/declarations/bar.js ===
+class Bar {}
+>Bar : Bar
+
+module.exports = Bar;
+>module.exports = Bar : typeof Bar
+>module.exports : typeof Bar
+>module : { "tests/cases/conformance/jsdoc/declarations/bar": typeof Bar; }
+>exports : typeof Bar
+>Bar : typeof Bar
+

tests/baselines/reference/jsDeclarationsClasses.js

@@ -0,0 +1,591 @@
+//// [index.js]
+export class A {}
+
+export class B {
+    static cat = "cat";
+}
+
+export class C {
+    static Cls = class {}
+}
+
+export class D {
+    /**
+     * @param {number} a
+     * @param {number} b
+     */
+    constructor(a, b) {}
+}
+
+/**
+ * @template T,U
+ */
+export class E {
+    /**
+     * @type {T & U}
+     */
+    field;
+
+    // @readonly is currently unsupported, it seems - included here just in case that changes
+    /**
+     * @type {T & U}
+     * @readonly
+     */
+    readonlyField;
+
+    initializedField = 12;
+
+    /**
+     * @return {U}
+     */
+    get f1() { return /** @type {*} */(null); }
+
+    /**
+     * @param {U} _p
+     */
+    set f1(_p) {}
+
+    /**
+     * @return {U}
+     */
+    get f2() { return /** @type {*} */(null); }
+
+    /**
+     * @param {U} _p
+     */
+    set f3(_p) {}
+
+    /**
+     * @param {T} a
+     * @param {U} b
+     */
+    constructor(a, b) {}
+
+
+    /**
+     * @type {string}
+     */
+    static staticField;
+
+    // @readonly is currently unsupported, it seems - included here just in case that changes
+    /**
+     * @type {string}
+     * @readonly
+     */
+    static staticReadonlyField;
+
+    static staticInitializedField = 12;
+
+    /**
+     * @return {string}
+     */
+    static get s1() { return ""; }
+
+    /**
+     * @param {string} _p
+     */
+    static set s1(_p) {}
+
+    /**
+     * @return {string}
+     */
+    static get s2() { return ""; }
+
+    /**
+     * @param {string} _p
+     */
+    static set s3(_p) {}
+}
+
+/**
+ * @template T,U
+ */
+export class F {
+    /**
+     * @type {T & U}
+     */
+    field;
+    /**
+     * @param {T} a
+     * @param {U} b
+     */
+    constructor(a, b) {}
+
+    /**
+     * @template A,B
+     * @param {A} a
+     * @param {B} b
+     */
+    static create(a, b) { return new F(a, b); }
+}
+
+class G {}
+
+export { G };
+
+class HH {}
+
+export { HH as H };
+
+export class I {}
+export { I as II };
+
+export { J as JJ };
+export class J {}
+
+
+export class K {
+    constructor() {
+        this.p1 = 12;
+        this.p2 = "ok";
+    }
+
+    method() {
+        return this.p1;
+    }
+}
+
+export class L extends K {}
+
+export class M extends null {
+    constructor() {
+        this.prop = 12;
+    }
+}
+
+
+/**
+ * @template T
+ */
+export class N extends L {
+    /**
+     * @param {T} param 
+     */
+    constructor(param) {
+        super();
+        this.another = param;
+    }
+}
+
+/**
+ * @template U
+ * @extends {N<U>}
+ */
+export class O extends N {
+    /**
+     * @param {U} param 
+     */
+    constructor(param) {
+        super(param);
+        this.another2 = param;
+    }
+}
+
+var x = /** @type {*} */(null);
+
+export class VariableBase extends x {}
+
+export class HasStatics {
+    static staticMethod() {}
+}
+
+export class ExtendsStatics extends HasStatics {
+    static also() {}
+}
+
+
+//// [index.js]
+"use strict";
+var __extends = (this && this.__extends) || (function () {
+    var extendStatics = function (d, b) {
+        extendStatics = Object.setPrototypeOf ||
+            ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
+            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+        return extendStatics(d, b);
+    };
+    return function (d, b) {
+        extendStatics(d, b);
+        function __() { this.constructor = d; }
+        d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
+    };
+})();
+Object.defineProperty(exports, "__esModule", { value: true });
+var A = /** @class */ (function () {
+    function A() {
+    }
+    return A;
+}());
+exports.A = A;
+var B = /** @class */ (function () {
+    function B() {
+    }
+    B.cat = "cat";
+    return B;
+}());
+exports.B = B;
+var C = /** @class */ (function () {
+    function C() {
+    }
+    C.Cls = /** @class */ (function () {
+        function class_1() {
+        }
+        return class_1;
+    }());
+    return C;
+}());
+exports.C = C;
+var D = /** @class */ (function () {
+    /**
+     * @param {number} a
+     * @param {number} b
+     */
+    function D(a, b) {
+    }
+    return D;
+}());
+exports.D = D;
+/**
+ * @template T,U
+ */
+var E = /** @class */ (function () {
+    /**
+     * @param {T} a
+     * @param {U} b
+     */
+    function E(a, b) {
+        this.initializedField = 12;
+    }
+    Object.defineProperty(E.prototype, "f1", {
+        /**
+         * @return {U}
+         */
+        get: function () { return /** @type {*} */ (null); },
+        /**
+         * @param {U} _p
+         */
+        set: function (_p) { },
+        enumerable: true,
+        configurable: true
+    });
+    Object.defineProperty(E.prototype, "f2", {
+        /**
+         * @return {U}
+         */
+        get: function () { return /** @type {*} */ (null); },
+        enumerable: true,
+        configurable: true
+    });
+    Object.defineProperty(E.prototype, "f3", {
+        /**
+         * @param {U} _p
+         */
+        set: function (_p) { },
+        enumerable: true,
+        configurable: true
+    });
+    Object.defineProperty(E, "s1", {
+        /**
+         * @return {string}
+         */
+        get: function () { return ""; },
+        /**
+         * @param {string} _p
+         */
+        set: function (_p) { },
+        enumerable: true,
+        configurable: true
+    });
+    Object.defineProperty(E, "s2", {
+        /**
+         * @return {string}
+         */
+        get: function () { return ""; },
+        enumerable: true,
+        configurable: true
+    });
+    Object.defineProperty(E, "s3", {
+        /**
+         * @param {string} _p
+         */
+        set: function (_p) { },
+        enumerable: true,
+        configurable: true
+    });
+    E.staticInitializedField = 12;
+    return E;
+}());
+exports.E = E;
+/**
+ * @template T,U
+ */
+var F = /** @class */ (function () {
+    /**
+     * @param {T} a
+     * @param {U} b
+     */
+    function F(a, b) {
+    }
+    /**
+     * @template A,B
+     * @param {A} a
+     * @param {B} b
+     */
+    F.create = function (a, b) { return new F(a, b); };
+    return F;
+}());
+exports.F = F;
+var G = /** @class */ (function () {
+    function G() {
+    }
+    return G;
+}());
+exports.G = G;
+var HH = /** @class */ (function () {
+    function HH() {
+    }
+    return HH;
+}());
+exports.H = HH;
+var I = /** @class */ (function () {
+    function I() {
+    }
+    return I;
+}());
+exports.I = I;
+exports.II = I;
+var J = /** @class */ (function () {
+    function J() {
+    }
+    return J;
+}());
+exports.JJ = J;
+exports.J = J;
+var K = /** @class */ (function () {
+    function K() {
+        this.p1 = 12;
+        this.p2 = "ok";
+    }
+    K.prototype.method = function () {
+        return this.p1;
+    };
+    return K;
+}());
+exports.K = K;
+var L = /** @class */ (function (_super) {
+    __extends(L, _super);
+    function L() {
+        return _super !== null && _super.apply(this, arguments) || this;
+    }
+    return L;
+}(K));
+exports.L = L;
+var M = /** @class */ (function (_super) {
+    __extends(M, _super);
+    function M() {
+        _this.prop = 12;
+    }
+    return M;
+}(null));
+exports.M = M;
+/**
+ * @template T
+ */
+var N = /** @class */ (function (_super) {
+    __extends(N, _super);
+    /**
+     * @param {T} param
+     */
+    function N(param) {
+        var _this = _super.call(this) || this;
+        _this.another = param;
+        return _this;
+    }
+    return N;
+}(L));
+exports.N = N;
+/**
+ * @template U
+ * @extends {N<U>}
+ */
+var O = /** @class */ (function (_super) {
+    __extends(O, _super);
+    /**
+     * @param {U} param
+     */
+    function O(param) {
+        var _this = _super.call(this, param) || this;
+        _this.another2 = param;
+        return _this;
+    }
+    return O;
+}(N));
+exports.O = O;
+var x = /** @type {*} */ (null);
+var VariableBase = /** @class */ (function (_super) {
+    __extends(VariableBase, _super);
+    function VariableBase() {
+        return _super !== null && _super.apply(this, arguments) || this;
+    }
+    return VariableBase;
+}(x));
+exports.VariableBase = VariableBase;
+var HasStatics = /** @class */ (function () {
+    function HasStatics() {
+    }
+    HasStatics.staticMethod = function () { };
+    return HasStatics;
+}());
+exports.HasStatics = HasStatics;
+var ExtendsStatics = /** @class */ (function (_super) {
+    __extends(ExtendsStatics, _super);
+    function ExtendsStatics() {
+        return _super !== null && _super.apply(this, arguments) || this;
+    }
+    ExtendsStatics.also = function () { };
+    return ExtendsStatics;
+}(HasStatics));
+exports.ExtendsStatics = ExtendsStatics;
+
+
+//// [index.d.ts]
+export class A {
+}
+export class B {
+    static cat: string;
+}
+export class C {
+    static Cls: {
+        new (): {};
+    };
+}
+export class D {
+    /**
+     * @param {number} a
+     * @param {number} b
+     */
+    constructor(a: number, b: number);
+}
+/**
+ * @template T,U
+ */
+export class E<T, U> {
+    /**
+     * @type {string}
+     */
+    static staticField: string;
+    /**
+     * @type {string}
+     * @readonly
+     */
+    static staticReadonlyField: string;
+    static staticInitializedField: number;
+    /**
+     * @return {string}
+     */
+    static s1: string;
+    /**
+     * @return {string}
+     */
+    static readonly s2: string;
+    /**
+     * @param {string} _p
+     */
+    static s3: string;
+    /**
+     * @param {T} a
+     * @param {U} b
+     */
+    constructor(a: T, b: U);
+    /**
+     * @type {T & U}
+     */
+    field: T & U;
+    /**
+     * @type {T & U}
+     * @readonly
+     */
+    readonlyField: T & U;
+    initializedField: number;
+    /**
+     * @return {U}
+     */
+    f1: U;
+    /**
+     * @return {U}
+     */
+    readonly f2: U;
+    /**
+     * @param {U} _p
+     */
+    f3: U;
+}
+/**
+ * @template T,U
+ */
+export class F<T, U> {
+    /**
+     * @template A,B
+     * @param {A} a
+     * @param {B} b
+     */
+    static create<A_1, B_1>(a: A_1, b: B_1): F<A_1, B_1>;
+    /**
+     * @param {T} a
+     * @param {U} b
+     */
+    constructor(a: T, b: U);
+    /**
+     * @type {T & U}
+     */
+    field: T & U;
+}
+export class I {
+}
+export class J {
+}
+export class K {
+    p1: number;
+    p2: string;
+    method(): number;
+}
+export class L extends K {
+}
+export class M {
+    prop: number;
+}
+/**
+ * @template T
+ */
+export class N<T> extends L {
+    /**
+     * @param {T} param
+     */
+    constructor(param: T);
+    another: T;
+}
+/**
+ * @template U
+ * @extends {N<U>}
+ */
+export class O<U> extends N<U> {
+    /**
+     * @param {U} param
+     */
+    constructor(param: U);
+    another2: U;
+}
+declare const VariableBase_base: any;
+export class VariableBase extends VariableBase_base {
+    [x: string]: any;
+}
+export class HasStatics {
+    static staticMethod(): void;
+}
+export class ExtendsStatics extends HasStatics {
+    static also(): void;
+}
+export class G {
+}
+declare class HH {
+}
+export { HH as H, I as II, J as JJ };

tests/baselines/reference/jsDeclarationsClasses.symbols

@@ -0,0 +1,307 @@
+=== tests/cases/conformance/jsdoc/declarations/index.js ===
+export class A {}
+>A : Symbol(A, Decl(index.js, 0, 0))
+
+export class B {
+>B : Symbol(B, Decl(index.js, 0, 17))
+
+    static cat = "cat";
+>cat : Symbol(B.cat, Decl(index.js, 2, 16))
+}
+
+export class C {
+>C : Symbol(C, Decl(index.js, 4, 1))
+
+    static Cls = class {}
+>Cls : Symbol(C.Cls, Decl(index.js, 6, 16))
+}
+
+export class D {
+>D : Symbol(D, Decl(index.js, 8, 1))
+
+    /**
+     * @param {number} a
+     * @param {number} b
+     */
+    constructor(a, b) {}
+>a : Symbol(a, Decl(index.js, 15, 16))
+>b : Symbol(b, Decl(index.js, 15, 18))
+}
+
+/**
+ * @template T,U
+ */
+export class E {
+>E : Symbol(E, Decl(index.js, 16, 1))
+
+    /**
+     * @type {T & U}
+     */
+    field;
+>field : Symbol(E.field, Decl(index.js, 21, 16))
+
+    // @readonly is currently unsupported, it seems - included here just in case that changes
+    /**
+     * @type {T & U}
+     * @readonly
+     */
+    readonlyField;
+>readonlyField : Symbol(E.readonlyField, Decl(index.js, 25, 10))
+
+    initializedField = 12;
+>initializedField : Symbol(E.initializedField, Decl(index.js, 32, 18))
+
+    /**
+     * @return {U}
+     */
+    get f1() { return /** @type {*} */(null); }
+>f1 : Symbol(E.f1, Decl(index.js, 34, 26), Decl(index.js, 39, 47))
+
+    /**
+     * @param {U} _p
+     */
+    set f1(_p) {}
+>f1 : Symbol(E.f1, Decl(index.js, 34, 26), Decl(index.js, 39, 47))
+>_p : Symbol(_p, Decl(index.js, 44, 11))
+
+    /**
+     * @return {U}
+     */
+    get f2() { return /** @type {*} */(null); }
+>f2 : Symbol(E.f2, Decl(index.js, 44, 17))
+
+    /**
+     * @param {U} _p
+     */
+    set f3(_p) {}
+>f3 : Symbol(E.f3, Decl(index.js, 49, 47))
+>_p : Symbol(_p, Decl(index.js, 54, 11))
+
+    /**
+     * @param {T} a
+     * @param {U} b
+     */
+    constructor(a, b) {}
+>a : Symbol(a, Decl(index.js, 60, 16))
+>b : Symbol(b, Decl(index.js, 60, 18))
+
+
+    /**
+     * @type {string}
+     */
+    static staticField;
+>staticField : Symbol(E.staticField, Decl(index.js, 60, 24))
+
+    // @readonly is currently unsupported, it seems - included here just in case that changes
+    /**
+     * @type {string}
+     * @readonly
+     */
+    static staticReadonlyField;
+>staticReadonlyField : Symbol(E.staticReadonlyField, Decl(index.js, 66, 23))
+
+    static staticInitializedField = 12;
+>staticInitializedField : Symbol(E.staticInitializedField, Decl(index.js, 73, 31))
+
+    /**
+     * @return {string}
+     */
+    static get s1() { return ""; }
+>s1 : Symbol(E.s1, Decl(index.js, 75, 39), Decl(index.js, 80, 34))
+
+    /**
+     * @param {string} _p
+     */
+    static set s1(_p) {}
+>s1 : Symbol(E.s1, Decl(index.js, 75, 39), Decl(index.js, 80, 34))
+>_p : Symbol(_p, Decl(index.js, 85, 18))
+
+    /**
+     * @return {string}
+     */
+    static get s2() { return ""; }
+>s2 : Symbol(E.s2, Decl(index.js, 85, 24))
+
+    /**
+     * @param {string} _p
+     */
+    static set s3(_p) {}
+>s3 : Symbol(E.s3, Decl(index.js, 90, 34))
+>_p : Symbol(_p, Decl(index.js, 95, 18))
+}
+
+/**
+ * @template T,U
+ */
+export class F {
+>F : Symbol(F, Decl(index.js, 96, 1))
+
+    /**
+     * @type {T & U}
+     */
+    field;
+>field : Symbol(F.field, Decl(index.js, 101, 16))
+
+    /**
+     * @param {T} a
+     * @param {U} b
+     */
+    constructor(a, b) {}
+>a : Symbol(a, Decl(index.js, 110, 16))
+>b : Symbol(b, Decl(index.js, 110, 18))
+
+    /**
+     * @template A,B
+     * @param {A} a
+     * @param {B} b
+     */
+    static create(a, b) { return new F(a, b); }
+>create : Symbol(F.create, Decl(index.js, 110, 24))
+>a : Symbol(a, Decl(index.js, 117, 18))
+>b : Symbol(b, Decl(index.js, 117, 20))
+>F : Symbol(F, Decl(index.js, 96, 1))
+>a : Symbol(a, Decl(index.js, 117, 18))
+>b : Symbol(b, Decl(index.js, 117, 20))
+}
+
+class G {}
+>G : Symbol(G, Decl(index.js, 118, 1))
+
+export { G };
+>G : Symbol(G, Decl(index.js, 122, 8))
+
+class HH {}
+>HH : Symbol(HH, Decl(index.js, 122, 13))
+
+export { HH as H };
+>HH : Symbol(HH, Decl(index.js, 122, 13))
+>H : Symbol(H, Decl(index.js, 126, 8))
+
+export class I {}
+>I : Symbol(I, Decl(index.js, 126, 19))
+
+export { I as II };
+>I : Symbol(I, Decl(index.js, 126, 19))
+>II : Symbol(II, Decl(index.js, 129, 8))
+
+export { J as JJ };
+>J : Symbol(J, Decl(index.js, 131, 19))
+>JJ : Symbol(JJ, Decl(index.js, 131, 8))
+
+export class J {}
+>J : Symbol(J, Decl(index.js, 131, 19))
+
+
+export class K {
+>K : Symbol(K, Decl(index.js, 132, 17))
+
+    constructor() {
+        this.p1 = 12;
+>this.p1 : Symbol(K.p1, Decl(index.js, 136, 19))
+>this : Symbol(K, Decl(index.js, 132, 17))
+>p1 : Symbol(K.p1, Decl(index.js, 136, 19))
+
+        this.p2 = "ok";
+>this.p2 : Symbol(K.p2, Decl(index.js, 137, 21))
+>this : Symbol(K, Decl(index.js, 132, 17))
+>p2 : Symbol(K.p2, Decl(index.js, 137, 21))
+    }
+
+    method() {
+>method : Symbol(K.method, Decl(index.js, 139, 5))
+
+        return this.p1;
+>this.p1 : Symbol(K.p1, Decl(index.js, 136, 19))
+>this : Symbol(K, Decl(index.js, 132, 17))
+>p1 : Symbol(K.p1, Decl(index.js, 136, 19))
+    }
+}
+
+export class L extends K {}
+>L : Symbol(L, Decl(index.js, 144, 1))
+>K : Symbol(K, Decl(index.js, 132, 17))
+
+export class M extends null {
+>M : Symbol(M, Decl(index.js, 146, 27))
+
+    constructor() {
+        this.prop = 12;
+>this.prop : Symbol(M.prop, Decl(index.js, 149, 19))
+>this : Symbol(M, Decl(index.js, 146, 27))
+>prop : Symbol(M.prop, Decl(index.js, 149, 19))
+    }
+}
+
+
+/**
+ * @template T
+ */
+export class N extends L {
+>N : Symbol(N, Decl(index.js, 152, 1))
+>L : Symbol(L, Decl(index.js, 144, 1))
+
+    /**
+     * @param {T} param 
+     */
+    constructor(param) {
+>param : Symbol(param, Decl(index.js, 162, 16))
+
+        super();
+>super : Symbol(L, Decl(index.js, 144, 1))
+
+        this.another = param;
+>this.another : Symbol(N.another, Decl(index.js, 163, 16))
+>this : Symbol(N, Decl(index.js, 152, 1))
+>another : Symbol(N.another, Decl(index.js, 163, 16))
+>param : Symbol(param, Decl(index.js, 162, 16))
+    }
+}
+
+/**
+ * @template U
+ * @extends {N<U>}
+ */
+export class O extends N {
+>O : Symbol(O, Decl(index.js, 166, 1))
+>N : Symbol(N, Decl(index.js, 152, 1))
+
+    /**
+     * @param {U} param 
+     */
+    constructor(param) {
+>param : Symbol(param, Decl(index.js, 176, 16))
+
+        super(param);
+>super : Symbol(N, Decl(index.js, 152, 1))
+>param : Symbol(param, Decl(index.js, 176, 16))
+
+        this.another2 = param;
+>this.another2 : Symbol(O.another2, Decl(index.js, 177, 21))
+>this : Symbol(O, Decl(index.js, 166, 1))
+>another2 : Symbol(O.another2, Decl(index.js, 177, 21))
+>param : Symbol(param, Decl(index.js, 176, 16))
+    }
+}
+
+var x = /** @type {*} */(null);
+>x : Symbol(x, Decl(index.js, 182, 3))
+
+export class VariableBase extends x {}
+>VariableBase : Symbol(VariableBase, Decl(index.js, 182, 31))
+>x : Symbol(x, Decl(index.js, 182, 3))
+
+export class HasStatics {
+>HasStatics : Symbol(HasStatics, Decl(index.js, 184, 38))
+
+    static staticMethod() {}
+>staticMethod : Symbol(HasStatics.staticMethod, Decl(index.js, 186, 25))
+}
+
+export class ExtendsStatics extends HasStatics {
+>ExtendsStatics : Symbol(ExtendsStatics, Decl(index.js, 188, 1))
+>HasStatics : Symbol(HasStatics, Decl(index.js, 184, 38))
+
+    static also() {}
+>also : Symbol(ExtendsStatics.also, Decl(index.js, 190, 48))
+}
+

tests/baselines/reference/jsDeclarationsClasses.types

@@ -0,0 +1,331 @@
+=== tests/cases/conformance/jsdoc/declarations/index.js ===
+export class A {}
+>A : A
+
+export class B {
+>B : B
+
+    static cat = "cat";
+>cat : string
+>"cat" : "cat"
+}
+
+export class C {
+>C : C
+
+    static Cls = class {}
+>Cls : typeof (Anonymous class)
+>class {} : typeof (Anonymous class)
+}
+
+export class D {
+>D : D
+
+    /**
+     * @param {number} a
+     * @param {number} b
+     */
+    constructor(a, b) {}
+>a : number
+>b : number
+}
+
+/**
+ * @template T,U
+ */
+export class E {
+>E : E<T, U>
+
+    /**
+     * @type {T & U}
+     */
+    field;
+>field : T & U
+
+    // @readonly is currently unsupported, it seems - included here just in case that changes
+    /**
+     * @type {T & U}
+     * @readonly
+     */
+    readonlyField;
+>readonlyField : T & U
+
+    initializedField = 12;
+>initializedField : number
+>12 : 12
+
+    /**
+     * @return {U}
+     */
+    get f1() { return /** @type {*} */(null); }
+>f1 : U
+>(null) : any
+>null : null
+
+    /**
+     * @param {U} _p
+     */
+    set f1(_p) {}
+>f1 : U
+>_p : U
+
+    /**
+     * @return {U}
+     */
+    get f2() { return /** @type {*} */(null); }
+>f2 : U
+>(null) : any
+>null : null
+
+    /**
+     * @param {U} _p
+     */
+    set f3(_p) {}
+>f3 : U
+>_p : U
+
+    /**
+     * @param {T} a
+     * @param {U} b
+     */
+    constructor(a, b) {}
+>a : T
+>b : U
+
+
+    /**
+     * @type {string}
+     */
+    static staticField;
+>staticField : string
+
+    // @readonly is currently unsupported, it seems - included here just in case that changes
+    /**
+     * @type {string}
+     * @readonly
+     */
+    static staticReadonlyField;
+>staticReadonlyField : string
+
+    static staticInitializedField = 12;
+>staticInitializedField : number
+>12 : 12
+
+    /**
+     * @return {string}
+     */
+    static get s1() { return ""; }
+>s1 : string
+>"" : ""
+
+    /**
+     * @param {string} _p
+     */
+    static set s1(_p) {}
+>s1 : string
+>_p : string
+
+    /**
+     * @return {string}
+     */
+    static get s2() { return ""; }
+>s2 : string
+>"" : ""
+
+    /**
+     * @param {string} _p
+     */
+    static set s3(_p) {}
+>s3 : string
+>_p : string
+}
+
+/**
+ * @template T,U
+ */
+export class F {
+>F : F<T, U>
+
+    /**
+     * @type {T & U}
+     */
+    field;
+>field : T & U
+
+    /**
+     * @param {T} a
+     * @param {U} b
+     */
+    constructor(a, b) {}
+>a : T
+>b : U
+
+    /**
+     * @template A,B
+     * @param {A} a
+     * @param {B} b
+     */
+    static create(a, b) { return new F(a, b); }
+>create : <A, B>(a: A, b: B) => F<A, B>
+>a : A
+>b : B
+>new F(a, b) : F<A, B>
+>F : typeof F
+>a : A
+>b : B
+}
+
+class G {}
+>G : G
+
+export { G };
+>G : typeof G
+
+class HH {}
+>HH : HH
+
+export { HH as H };
+>HH : typeof HH
+>H : typeof HH
+
+export class I {}
+>I : I
+
+export { I as II };
+>I : typeof I
+>II : typeof I
+
+export { J as JJ };
+>J : typeof J
+>JJ : typeof J
+
+export class J {}
+>J : J
+
+
+export class K {
+>K : K
+
+    constructor() {
+        this.p1 = 12;
+>this.p1 = 12 : 12
+>this.p1 : number
+>this : this
+>p1 : number
+>12 : 12
+
+        this.p2 = "ok";
+>this.p2 = "ok" : "ok"
+>this.p2 : string
+>this : this
+>p2 : string
+>"ok" : "ok"
+    }
+
+    method() {
+>method : () => number
+
+        return this.p1;
+>this.p1 : number
+>this : this
+>p1 : number
+    }
+}
+
+export class L extends K {}
+>L : L
+>K : K
+
+export class M extends null {
+>M : M
+>null : null
+
+    constructor() {
+        this.prop = 12;
+>this.prop = 12 : 12
+>this.prop : number
+>this : this
+>prop : number
+>12 : 12
+    }
+}
+
+
+/**
+ * @template T
+ */
+export class N extends L {
+>N : N<T>
+>L : L
+
+    /**
+     * @param {T} param 
+     */
+    constructor(param) {
+>param : T
+
+        super();
+>super() : void
+>super : typeof L
+
+        this.another = param;
+>this.another = param : T
+>this.another : T
+>this : this
+>another : T
+>param : T
+    }
+}
+
+/**
+ * @template U
+ * @extends {N<U>}
+ */
+export class O extends N {
+>O : O<U>
+>N : N<U>
+
+    /**
+     * @param {U} param 
+     */
+    constructor(param) {
+>param : U
+
+        super(param);
+>super(param) : void
+>super : typeof N
+>param : U
+
+        this.another2 = param;
+>this.another2 = param : U
+>this.another2 : U
+>this : this
+>another2 : U
+>param : U
+    }
+}
+
+var x = /** @type {*} */(null);
+>x : any
+>(null) : any
+>null : null
+
+export class VariableBase extends x {}
+>VariableBase : VariableBase
+>x : any
+
+export class HasStatics {
+>HasStatics : HasStatics
+
+    static staticMethod() {}
+>staticMethod : () => void
+}
+
+export class ExtendsStatics extends HasStatics {
+>ExtendsStatics : ExtendsStatics
+>HasStatics : HasStatics
+
+    static also() {}
+>also : () => void
+}
+

tests/baselines/reference/jsDeclarationsClassesErr.errors.txt

@@ -0,0 +1,136 @@
+tests/cases/conformance/jsdoc/declarations/index.js(4,16): error TS8004: 'type parameter declarations' can only be used in a .ts file.
+tests/cases/conformance/jsdoc/declarations/index.js(5,12): error TS8010: 'types' can only be used in a .ts file.
+tests/cases/conformance/jsdoc/declarations/index.js(8,16): error TS8004: 'type parameter declarations' can only be used in a .ts file.
+tests/cases/conformance/jsdoc/declarations/index.js(8,29): error TS8011: 'type arguments' can only be used in a .ts file.
+tests/cases/conformance/jsdoc/declarations/index.js(9,12): error TS8010: 'types' can only be used in a .ts file.
+tests/cases/conformance/jsdoc/declarations/index.js(13,11): error TS8010: 'types' can only be used in a .ts file.
+tests/cases/conformance/jsdoc/declarations/index.js(19,11): error TS8010: 'types' can only be used in a .ts file.
+tests/cases/conformance/jsdoc/declarations/index.js(23,11): error TS8010: 'types' can only be used in a .ts file.
+tests/cases/conformance/jsdoc/declarations/index.js(27,11): error TS8010: 'types' can only be used in a .ts file.
+tests/cases/conformance/jsdoc/declarations/index.js(28,11): error TS8010: 'types' can only be used in a .ts file.
+tests/cases/conformance/jsdoc/declarations/index.js(32,11): error TS8010: 'types' can only be used in a .ts file.
+tests/cases/conformance/jsdoc/declarations/index.js(39,11): error TS8010: 'types' can only be used in a .ts file.
+tests/cases/conformance/jsdoc/declarations/index.js(43,11): error TS8010: 'types' can only be used in a .ts file.
+tests/cases/conformance/jsdoc/declarations/index.js(47,11): error TS8010: 'types' can only be used in a .ts file.
+tests/cases/conformance/jsdoc/declarations/index.js(48,11): error TS8010: 'types' can only be used in a .ts file.
+tests/cases/conformance/jsdoc/declarations/index.js(52,11): error TS8010: 'types' can only be used in a .ts file.
+tests/cases/conformance/jsdoc/declarations/index.js(53,11): error TS8010: 'types' can only be used in a .ts file.
+tests/cases/conformance/jsdoc/declarations/index.js(59,11): error TS8010: 'types' can only be used in a .ts file.
+tests/cases/conformance/jsdoc/declarations/index.js(63,11): error TS8010: 'types' can only be used in a .ts file.
+tests/cases/conformance/jsdoc/declarations/index.js(67,11): error TS8010: 'types' can only be used in a .ts file.
+tests/cases/conformance/jsdoc/declarations/index.js(68,11): error TS8010: 'types' can only be used in a .ts file.
+
+
+==== tests/cases/conformance/jsdoc/declarations/index.js (21 errors) ====
+    // Pretty much all of this should be an error, (since index signatures and generics are forbidden in js),
+    // but we should be able to synthesize declarations from the symbols regardless
+    
+    export class M<T> {
+                   ~
+!!! error TS8004: 'type parameter declarations' can only be used in a .ts file.
+        field: T;
+               ~
+!!! error TS8010: 'types' can only be used in a .ts file.
+    }
+    
+    export class N<U> extends M<U> {
+                   ~
+!!! error TS8004: 'type parameter declarations' can only be used in a .ts file.
+                                ~
+!!! error TS8011: 'type arguments' can only be used in a .ts file.
+        other: U;
+               ~
+!!! error TS8010: 'types' can only be used in a .ts file.
+    }
+    
+    export class O {
+        [idx: string]: string;
+              ~~~~~~
+!!! error TS8010: 'types' can only be used in a .ts file.
+    }
+    
+    export class P extends O {}
+    
+    export class Q extends O {
+        [idx: string]: "ok";
+              ~~~~~~
+!!! error TS8010: 'types' can only be used in a .ts file.
+    }
+    
+    export class R extends O {
+        [idx: number]: "ok";
+              ~~~~~~
+!!! error TS8010: 'types' can only be used in a .ts file.
+    }
+    
+    export class S extends O {
+        [idx: string]: "ok";
+              ~~~~~~
+!!! error TS8010: 'types' can only be used in a .ts file.
+        [idx: number]: never;
+              ~~~~~~
+!!! error TS8010: 'types' can only be used in a .ts file.
+    }
+    
+    export class T {
+        [idx: number]: string;
+              ~~~~~~
+!!! error TS8010: 'types' can only be used in a .ts file.
+    }
+    
+    export class U extends T {}
+    
+    
+    export class V extends T {
+        [idx: string]: string;
+              ~~~~~~
+!!! error TS8010: 'types' can only be used in a .ts file.
+    }
+    
+    export class W extends T {
+        [idx: number]: "ok";
+              ~~~~~~
+!!! error TS8010: 'types' can only be used in a .ts file.
+    }
+    
+    export class X extends T {
+        [idx: string]: string;
+              ~~~~~~
+!!! error TS8010: 'types' can only be used in a .ts file.
+        [idx: number]: "ok";
+              ~~~~~~
+!!! error TS8010: 'types' can only be used in a .ts file.
+    }
+    
+    export class Y {
+        [idx: string]: {x: number};
+              ~~~~~~
+!!! error TS8010: 'types' can only be used in a .ts file.
+        [idx: number]: {x: number, y: number};
+              ~~~~~~
+!!! error TS8010: 'types' can only be used in a .ts file.
+    }
+    
+    export class Z extends Y {}
+    
+    export class AA extends Y {
+        [idx: string]: {x: number, y: number};
+              ~~~~~~
+!!! error TS8010: 'types' can only be used in a .ts file.
+    }
+    
+    export class BB extends Y {
+        [idx: number]: {x: 0, y: 0};
+              ~~~~~~
+!!! error TS8010: 'types' can only be used in a .ts file.
+    }
+    
+    export class CC extends Y {
+        [idx: string]: {x: number, y: number};
+              ~~~~~~
+!!! error TS8010: 'types' can only be used in a .ts file.
+        [idx: number]: {x: 0, y: 0};
+              ~~~~~~
+!!! error TS8010: 'types' can only be used in a .ts file.
+    }
+    

tests/baselines/reference/jsDeclarationsClassesErr.js

@@ -0,0 +1,290 @@
+//// [index.js]
+// Pretty much all of this should be an error, (since index signatures and generics are forbidden in js),
+// but we should be able to synthesize declarations from the symbols regardless
+
+export class M<T> {
+    field: T;
+}
+
+export class N<U> extends M<U> {
+    other: U;
+}
+
+export class O {
+    [idx: string]: string;
+}
+
+export class P extends O {}
+
+export class Q extends O {
+    [idx: string]: "ok";
+}
+
+export class R extends O {
+    [idx: number]: "ok";
+}
+
+export class S extends O {
+    [idx: string]: "ok";
+    [idx: number]: never;
+}
+
+export class T {
+    [idx: number]: string;
+}
+
+export class U extends T {}
+
+
+export class V extends T {
+    [idx: string]: string;
+}
+
+export class W extends T {
+    [idx: number]: "ok";
+}
+
+export class X extends T {
+    [idx: string]: string;
+    [idx: number]: "ok";
+}
+
+export class Y {
+    [idx: string]: {x: number};
+    [idx: number]: {x: number, y: number};
+}
+
+export class Z extends Y {}
+
+export class AA extends Y {
+    [idx: string]: {x: number, y: number};
+}
+
+export class BB extends Y {
+    [idx: number]: {x: 0, y: 0};
+}
+
+export class CC extends Y {
+    [idx: string]: {x: number, y: number};
+    [idx: number]: {x: 0, y: 0};
+}
+
+
+//// [index.js]
+"use strict";
+// Pretty much all of this should be an error, (since index signatures and generics are forbidden in js),
+// but we should be able to synthesize declarations from the symbols regardless
+var __extends = (this && this.__extends) || (function () {
+    var extendStatics = function (d, b) {
+        extendStatics = Object.setPrototypeOf ||
+            ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
+            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+        return extendStatics(d, b);
+    };
+    return function (d, b) {
+        extendStatics(d, b);
+        function __() { this.constructor = d; }
+        d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
+    };
+})();
+Object.defineProperty(exports, "__esModule", { value: true });
+var M = /** @class */ (function () {
+    function M() {
+    }
+    return M;
+}());
+exports.M = M;
+var N = /** @class */ (function (_super) {
+    __extends(N, _super);
+    function N() {
+        return _super !== null && _super.apply(this, arguments) || this;
+    }
+    return N;
+}(M));
+exports.N = N;
+var O = /** @class */ (function () {
+    function O() {
+    }
+    return O;
+}());
+exports.O = O;
+var P = /** @class */ (function (_super) {
+    __extends(P, _super);
+    function P() {
+        return _super !== null && _super.apply(this, arguments) || this;
+    }
+    return P;
+}(O));
+exports.P = P;
+var Q = /** @class */ (function (_super) {
+    __extends(Q, _super);
+    function Q() {
+        return _super !== null && _super.apply(this, arguments) || this;
+    }
+    return Q;
+}(O));
+exports.Q = Q;
+var R = /** @class */ (function (_super) {
+    __extends(R, _super);
+    function R() {
+        return _super !== null && _super.apply(this, arguments) || this;
+    }
+    return R;
+}(O));
+exports.R = R;
+var S = /** @class */ (function (_super) {
+    __extends(S, _super);
+    function S() {
+        return _super !== null && _super.apply(this, arguments) || this;
+    }
+    return S;
+}(O));
+exports.S = S;
+var T = /** @class */ (function () {
+    function T() {
+    }
+    return T;
+}());
+exports.T = T;
+var U = /** @class */ (function (_super) {
+    __extends(U, _super);
+    function U() {
+        return _super !== null && _super.apply(this, arguments) || this;
+    }
+    return U;
+}(T));
+exports.U = U;
+var V = /** @class */ (function (_super) {
+    __extends(V, _super);
+    function V() {
+        return _super !== null && _super.apply(this, arguments) || this;
+    }
+    return V;
+}(T));
+exports.V = V;
+var W = /** @class */ (function (_super) {
+    __extends(W, _super);
+    function W() {
+        return _super !== null && _super.apply(this, arguments) || this;
+    }
+    return W;
+}(T));
+exports.W = W;
+var X = /** @class */ (function (_super) {
+    __extends(X, _super);
+    function X() {
+        return _super !== null && _super.apply(this, arguments) || this;
+    }
+    return X;
+}(T));
+exports.X = X;
+var Y = /** @class */ (function () {
+    function Y() {
+    }
+    return Y;
+}());
+exports.Y = Y;
+var Z = /** @class */ (function (_super) {
+    __extends(Z, _super);
+    function Z() {
+        return _super !== null && _super.apply(this, arguments) || this;
+    }
+    return Z;
+}(Y));
+exports.Z = Z;
+var AA = /** @class */ (function (_super) {
+    __extends(AA, _super);
+    function AA() {
+        return _super !== null && _super.apply(this, arguments) || this;
+    }
+    return AA;
+}(Y));
+exports.AA = AA;
+var BB = /** @class */ (function (_super) {
+    __extends(BB, _super);
+    function BB() {
+        return _super !== null && _super.apply(this, arguments) || this;
+    }
+    return BB;
+}(Y));
+exports.BB = BB;
+var CC = /** @class */ (function (_super) {
+    __extends(CC, _super);
+    function CC() {
+        return _super !== null && _super.apply(this, arguments) || this;
+    }
+    return CC;
+}(Y));
+exports.CC = CC;
+
+
+//// [index.d.ts]
+export class M<T_1> {
+    field: T_1;
+}
+export class N<U_1> extends M<U_1> {
+    other: U_1;
+}
+export class O {
+    [idx: string]: string;
+}
+export class P extends O {
+}
+export class Q extends O {
+    [idx: string]: "ok";
+}
+export class R extends O {
+    [idx: number]: "ok";
+}
+export class S extends O {
+    [idx: string]: "ok";
+    [idx: number]: never;
+}
+export class T {
+    [idx: number]: string;
+}
+export class U extends T {
+}
+export class V extends T {
+    [idx: string]: string;
+}
+export class W extends T {
+    [idx: number]: "ok";
+}
+export class X extends T {
+    [idx: string]: string;
+    [idx: number]: "ok";
+}
+export class Y {
+    [idx: string]: {
+        x: number;
+    };
+    [idx: number]: {
+        x: number;
+        y: number;
+    };
+}
+export class Z extends Y {
+}
+export class AA extends Y {
+    [idx: string]: {
+        x: number;
+        y: number;
+    };
+}
+export class BB extends Y {
+    [idx: number]: {
+        x: 0;
+        y: 0;
+    };
+}
+export class CC extends Y {
+    [idx: string]: {
+        x: number;
+        y: number;
+    };
+    [idx: number]: {
+        x: 0;
+        y: 0;
+    };
+}

tests/baselines/reference/jsDeclarationsClassesErr.symbols

@@ -0,0 +1,153 @@
+=== tests/cases/conformance/jsdoc/declarations/index.js ===
+// Pretty much all of this should be an error, (since index signatures and generics are forbidden in js),
+// but we should be able to synthesize declarations from the symbols regardless
+
+export class M<T> {
+>M : Symbol(M, Decl(index.js, 0, 0))
+>T : Symbol(T, Decl(index.js, 3, 15))
+
+    field: T;
+>field : Symbol(M.field, Decl(index.js, 3, 19))
+>T : Symbol(T, Decl(index.js, 3, 15))
+}
+
+export class N<U> extends M<U> {
+>N : Symbol(N, Decl(index.js, 5, 1))
+>U : Symbol(U, Decl(index.js, 7, 15))
+>M : Symbol(M, Decl(index.js, 0, 0))
+>U : Symbol(U, Decl(index.js, 7, 15))
+
+    other: U;
+>other : Symbol(N.other, Decl(index.js, 7, 32))
+>U : Symbol(U, Decl(index.js, 7, 15))
+}
+
+export class O {
+>O : Symbol(O, Decl(index.js, 9, 1))
+
+    [idx: string]: string;
+>idx : Symbol(idx, Decl(index.js, 12, 5))
+}
+
+export class P extends O {}
+>P : Symbol(P, Decl(index.js, 13, 1))
+>O : Symbol(O, Decl(index.js, 9, 1))
+
+export class Q extends O {
+>Q : Symbol(Q, Decl(index.js, 15, 27))
+>O : Symbol(O, Decl(index.js, 9, 1))
+
+    [idx: string]: "ok";
+>idx : Symbol(idx, Decl(index.js, 18, 5))
+}
+
+export class R extends O {
+>R : Symbol(R, Decl(index.js, 19, 1))
+>O : Symbol(O, Decl(index.js, 9, 1))
+
+    [idx: number]: "ok";
+>idx : Symbol(idx, Decl(index.js, 22, 5))
+}
+
+export class S extends O {
+>S : Symbol(S, Decl(index.js, 23, 1))
+>O : Symbol(O, Decl(index.js, 9, 1))
+
+    [idx: string]: "ok";
+>idx : Symbol(idx, Decl(index.js, 26, 5))
+
+    [idx: number]: never;
+>idx : Symbol(idx, Decl(index.js, 27, 5))
+}
+
+export class T {
+>T : Symbol(T, Decl(index.js, 28, 1))
+
+    [idx: number]: string;
+>idx : Symbol(idx, Decl(index.js, 31, 5))
+}
+
+export class U extends T {}
+>U : Symbol(U, Decl(index.js, 32, 1))
+>T : Symbol(T, Decl(index.js, 28, 1))
+
+
+export class V extends T {
+>V : Symbol(V, Decl(index.js, 34, 27))
+>T : Symbol(T, Decl(index.js, 28, 1))
+
+    [idx: string]: string;
+>idx : Symbol(idx, Decl(index.js, 38, 5))
+}
+
+export class W extends T {
+>W : Symbol(W, Decl(index.js, 39, 1))
+>T : Symbol(T, Decl(index.js, 28, 1))
+
+    [idx: number]: "ok";
+>idx : Symbol(idx, Decl(index.js, 42, 5))
+}
+
+export class X extends T {
+>X : Symbol(X, Decl(index.js, 43, 1))
+>T : Symbol(T, Decl(index.js, 28, 1))
+
+    [idx: string]: string;
+>idx : Symbol(idx, Decl(index.js, 46, 5))
+
+    [idx: number]: "ok";
+>idx : Symbol(idx, Decl(index.js, 47, 5))
+}
+
+export class Y {
+>Y : Symbol(Y, Decl(index.js, 48, 1))
+
+    [idx: string]: {x: number};
+>idx : Symbol(idx, Decl(index.js, 51, 5))
+>x : Symbol(x, Decl(index.js, 51, 20))
+
+    [idx: number]: {x: number, y: number};
+>idx : Symbol(idx, Decl(index.js, 52, 5))
+>x : Symbol(x, Decl(index.js, 52, 20))
+>y : Symbol(y, Decl(index.js, 52, 30))
+}
+
+export class Z extends Y {}
+>Z : Symbol(Z, Decl(index.js, 53, 1))
+>Y : Symbol(Y, Decl(index.js, 48, 1))
+
+export class AA extends Y {
+>AA : Symbol(AA, Decl(index.js, 55, 27))
+>Y : Symbol(Y, Decl(index.js, 48, 1))
+
+    [idx: string]: {x: number, y: number};
+>idx : Symbol(idx, Decl(index.js, 58, 5))
+>x : Symbol(x, Decl(index.js, 58, 20))
+>y : Symbol(y, Decl(index.js, 58, 30))
+}
+
+export class BB extends Y {
+>BB : Symbol(BB, Decl(index.js, 59, 1))
+>Y : Symbol(Y, Decl(index.js, 48, 1))
+
+    [idx: number]: {x: 0, y: 0};
+>idx : Symbol(idx, Decl(index.js, 62, 5))
+>x : Symbol(x, Decl(index.js, 62, 20))
+>y : Symbol(y, Decl(index.js, 62, 25))
+}
+
+export class CC extends Y {
+>CC : Symbol(CC, Decl(index.js, 63, 1))
+>Y : Symbol(Y, Decl(index.js, 48, 1))
+
+    [idx: string]: {x: number, y: number};
+>idx : Symbol(idx, Decl(index.js, 66, 5))
+>x : Symbol(x, Decl(index.js, 66, 20))
+>y : Symbol(y, Decl(index.js, 66, 30))
+
+    [idx: number]: {x: 0, y: 0};
+>idx : Symbol(idx, Decl(index.js, 67, 5))
+>x : Symbol(x, Decl(index.js, 67, 20))
+>y : Symbol(y, Decl(index.js, 67, 25))
+}
+

tests/baselines/reference/jsDeclarationsClassesErr.types

@@ -0,0 +1,148 @@
+=== tests/cases/conformance/jsdoc/declarations/index.js ===
+// Pretty much all of this should be an error, (since index signatures and generics are forbidden in js),
+// but we should be able to synthesize declarations from the symbols regardless
+
+export class M<T> {
+>M : M<T>
+
+    field: T;
+>field : T
+}
+
+export class N<U> extends M<U> {
+>N : N<U>
+>M : M<U>
+
+    other: U;
+>other : U
+}
+
+export class O {
+>O : O
+
+    [idx: string]: string;
+>idx : string
+}
+
+export class P extends O {}
+>P : P
+>O : O
+
+export class Q extends O {
+>Q : Q
+>O : O
+
+    [idx: string]: "ok";
+>idx : string
+}
+
+export class R extends O {
+>R : R
+>O : O
+
+    [idx: number]: "ok";
+>idx : number
+}
+
+export class S extends O {
+>S : S
+>O : O
+
+    [idx: string]: "ok";
+>idx : string
+
+    [idx: number]: never;
+>idx : number
+}
+
+export class T {
+>T : T
+
+    [idx: number]: string;
+>idx : number
+}
+
+export class U extends T {}
+>U : U
+>T : T
+
+
+export class V extends T {
+>V : V
+>T : T
+
+    [idx: string]: string;
+>idx : string
+}
+
+export class W extends T {
+>W : W
+>T : T
+
+    [idx: number]: "ok";
+>idx : number
+}
+
+export class X extends T {
+>X : X
+>T : T
+
+    [idx: string]: string;
+>idx : string
+
+    [idx: number]: "ok";
+>idx : number
+}
+
+export class Y {
+>Y : Y
+
+    [idx: string]: {x: number};
+>idx : string
+>x : number
+
+    [idx: number]: {x: number, y: number};
+>idx : number
+>x : number
+>y : number
+}
+
+export class Z extends Y {}
+>Z : Z
+>Y : Y
+
+export class AA extends Y {
+>AA : AA
+>Y : Y
+
+    [idx: string]: {x: number, y: number};
+>idx : string
+>x : number
+>y : number
+}
+
+export class BB extends Y {
+>BB : BB
+>Y : Y
+
+    [idx: number]: {x: 0, y: 0};
+>idx : number
+>x : 0
+>y : 0
+}
+
+export class CC extends Y {
+>CC : CC
+>Y : Y
+
+    [idx: string]: {x: number, y: number};
+>idx : string
+>x : number
+>y : number
+
+    [idx: number]: {x: 0, y: 0};
+>idx : number
+>x : 0
+>y : 0
+}
+

tests/baselines/reference/jsDeclarationsComputedNames.js

@@ -0,0 +1,92 @@
+//// [tests/cases/conformance/jsdoc/declarations/jsDeclarationsComputedNames.ts] ////
+
+//// [index.js]
+const TopLevelSym = Symbol();
+const InnerSym = Symbol();
+module.exports = {
+    [TopLevelSym](x = 12) {
+        return x;
+    },
+    items: {
+        [InnerSym]: (arg = {x: 12}) => arg.x
+    }
+}
+
+//// [index2.js]
+const TopLevelSym = Symbol();
+const InnerSym = Symbol();
+
+export class MyClass {
+    static [TopLevelSym] = 12;
+    [InnerSym] = "ok";
+    /**
+     * @param {typeof TopLevelSym | typeof InnerSym} _p
+     */
+    constructor(_p = InnerSym) {
+        // switch on _p
+    }
+}
+
+
+//// [index.js]
+var _a, _b;
+var TopLevelSym = Symbol();
+var InnerSym = Symbol();
+module.exports = (_a = {},
+    _a[TopLevelSym] = function (x) {
+        if (x === void 0) { x = 12; }
+        return x;
+    },
+    _a.items = (_b = {},
+        _b[InnerSym] = function (arg) {
+            if (arg === void 0) { arg = { x: 12 }; }
+            return arg.x;
+        },
+        _b),
+    _a);
+//// [index2.js]
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+var TopLevelSym = Symbol();
+var InnerSym = Symbol();
+var MyClass = /** @class */ (function () {
+    /**
+     * @param {typeof TopLevelSym | typeof InnerSym} _p
+     */
+    function MyClass(_p) {
+        if (_p === void 0) { _p = InnerSym; }
+        this[_b] = "ok";
+        // switch on _p
+    }
+    var _a, _b;
+    _a = TopLevelSym, _b = InnerSym;
+    MyClass[_a] = 12;
+    return MyClass;
+}());
+exports.MyClass = MyClass;
+
+
+//// [index.d.ts]
+declare const _exports: {
+    [TopLevelSym](x?: number): number;
+    items: {
+        [InnerSym]: (arg?: {
+            x: number;
+        }) => number;
+    };
+};
+export = _exports;
+declare const TopLevelSym: unique symbol;
+declare const InnerSym: unique symbol;
+//// [index2.d.ts]
+export class MyClass {
+    static [TopLevelSym]: number;
+    /**
+     * @param {typeof TopLevelSym | typeof InnerSym} _p
+     */
+    constructor(_p?: typeof TopLevelSym | typeof InnerSym);
+    [InnerSym]: string;
+}
+declare const InnerSym: unique symbol;
+declare const TopLevelSym: unique symbol;
+export {};

tests/baselines/reference/jsDeclarationsComputedNames.symbols

@@ -0,0 +1,68 @@
+=== tests/cases/conformance/jsdoc/declarations/index.js ===
+const TopLevelSym = Symbol();
+>TopLevelSym : Symbol(TopLevelSym, Decl(index.js, 0, 5))
+>Symbol : Symbol(Symbol, Decl(lib.es5.d.ts, --, --), Decl(lib.es2015.symbol.d.ts, --, --), Decl(lib.es2015.symbol.wellknown.d.ts, --, --))
+
+const InnerSym = Symbol();
+>InnerSym : Symbol(InnerSym, Decl(index.js, 1, 5))
+>Symbol : Symbol(Symbol, Decl(lib.es5.d.ts, --, --), Decl(lib.es2015.symbol.d.ts, --, --), Decl(lib.es2015.symbol.wellknown.d.ts, --, --))
+
+module.exports = {
+>module.exports : Symbol("tests/cases/conformance/jsdoc/declarations/index", Decl(index.js, 0, 0))
+>module : Symbol(export=, Decl(index.js, 1, 26))
+>exports : Symbol(export=, Decl(index.js, 1, 26))
+
+    [TopLevelSym](x = 12) {
+>[TopLevelSym] : Symbol([TopLevelSym], Decl(index.js, 2, 18))
+>TopLevelSym : Symbol(TopLevelSym, Decl(index.js, 0, 5))
+>x : Symbol(x, Decl(index.js, 3, 18))
+
+        return x;
+>x : Symbol(x, Decl(index.js, 3, 18))
+
+    },
+    items: {
+>items : Symbol(items, Decl(index.js, 5, 6))
+
+        [InnerSym]: (arg = {x: 12}) => arg.x
+>[InnerSym] : Symbol([InnerSym], Decl(index.js, 6, 12))
+>InnerSym : Symbol(InnerSym, Decl(index.js, 1, 5))
+>arg : Symbol(arg, Decl(index.js, 7, 21))
+>x : Symbol(x, Decl(index.js, 7, 28))
+>arg.x : Symbol(x, Decl(index.js, 7, 28))
+>arg : Symbol(arg, Decl(index.js, 7, 21))
+>x : Symbol(x, Decl(index.js, 7, 28))
+    }
+}
+
+=== tests/cases/conformance/jsdoc/declarations/index2.js ===
+const TopLevelSym = Symbol();
+>TopLevelSym : Symbol(TopLevelSym, Decl(index2.js, 0, 5))
+>Symbol : Symbol(Symbol, Decl(lib.es5.d.ts, --, --), Decl(lib.es2015.symbol.d.ts, --, --), Decl(lib.es2015.symbol.wellknown.d.ts, --, --))
+
+const InnerSym = Symbol();
+>InnerSym : Symbol(InnerSym, Decl(index2.js, 1, 5))
+>Symbol : Symbol(Symbol, Decl(lib.es5.d.ts, --, --), Decl(lib.es2015.symbol.d.ts, --, --), Decl(lib.es2015.symbol.wellknown.d.ts, --, --))
+
+export class MyClass {
+>MyClass : Symbol(MyClass, Decl(index2.js, 1, 26))
+
+    static [TopLevelSym] = 12;
+>[TopLevelSym] : Symbol(MyClass[TopLevelSym], Decl(index2.js, 3, 22))
+>TopLevelSym : Symbol(TopLevelSym, Decl(index2.js, 0, 5))
+
+    [InnerSym] = "ok";
+>[InnerSym] : Symbol(MyClass[InnerSym], Decl(index2.js, 4, 30))
+>InnerSym : Symbol(InnerSym, Decl(index2.js, 1, 5))
+
+    /**
+     * @param {typeof TopLevelSym | typeof InnerSym} _p
+     */
+    constructor(_p = InnerSym) {
+>_p : Symbol(_p, Decl(index2.js, 9, 16))
+>InnerSym : Symbol(InnerSym, Decl(index2.js, 1, 5))
+
+        // switch on _p
+    }
+}
+

tests/baselines/reference/jsDeclarationsComputedNames.types

@@ -0,0 +1,81 @@
+=== tests/cases/conformance/jsdoc/declarations/index.js ===
+const TopLevelSym = Symbol();
+>TopLevelSym : unique symbol
+>Symbol() : unique symbol
+>Symbol : SymbolConstructor
+
+const InnerSym = Symbol();
+>InnerSym : unique symbol
+>Symbol() : unique symbol
+>Symbol : SymbolConstructor
+
+module.exports = {
+>module.exports = {    [TopLevelSym](x = 12) {        return x;    },    items: {        [InnerSym]: (arg = {x: 12}) => arg.x    }} : { [TopLevelSym](x?: number): number; items: { [InnerSym]: (arg?: { x: number; }) => number; }; }
+>module.exports : { [TopLevelSym](x?: number): number; items: { [InnerSym]: (arg?: { x: number; }) => number; }; }
+>module : { "tests/cases/conformance/jsdoc/declarations/index": { [TopLevelSym](x?: number): number; items: { [InnerSym]: (arg?: { x: number; }) => number; }; }; }
+>exports : { [TopLevelSym](x?: number): number; items: { [InnerSym]: (arg?: { x: number; }) => number; }; }
+>{    [TopLevelSym](x = 12) {        return x;    },    items: {        [InnerSym]: (arg = {x: 12}) => arg.x    }} : { [TopLevelSym](x?: number): number; items: { [InnerSym]: (arg?: { x: number; }) => number; }; }
+
+    [TopLevelSym](x = 12) {
+>[TopLevelSym] : (x?: number) => number
+>TopLevelSym : unique symbol
+>x : number
+>12 : 12
+
+        return x;
+>x : number
+
+    },
+    items: {
+>items : { [InnerSym]: (arg?: { x: number; }) => number; }
+>{        [InnerSym]: (arg = {x: 12}) => arg.x    } : { [InnerSym]: (arg?: { x: number; }) => number; }
+
+        [InnerSym]: (arg = {x: 12}) => arg.x
+>[InnerSym] : (arg?: { x: number; }) => number
+>InnerSym : unique symbol
+>(arg = {x: 12}) => arg.x : (arg?: { x: number; }) => number
+>arg : { x: number; }
+>{x: 12} : { x: number; }
+>x : number
+>12 : 12
+>arg.x : number
+>arg : { x: number; }
+>x : number
+    }
+}
+
+=== tests/cases/conformance/jsdoc/declarations/index2.js ===
+const TopLevelSym = Symbol();
+>TopLevelSym : unique symbol
+>Symbol() : unique symbol
+>Symbol : SymbolConstructor
+
+const InnerSym = Symbol();
+>InnerSym : unique symbol
+>Symbol() : unique symbol
+>Symbol : SymbolConstructor
+
+export class MyClass {
+>MyClass : MyClass
+
+    static [TopLevelSym] = 12;
+>[TopLevelSym] : number
+>TopLevelSym : unique symbol
+>12 : 12
+
+    [InnerSym] = "ok";
+>[InnerSym] : string
+>InnerSym : unique symbol
+>"ok" : "ok"
+
+    /**
+     * @param {typeof TopLevelSym | typeof InnerSym} _p
+     */
+    constructor(_p = InnerSym) {
+>_p : unique symbol | unique symbol
+>InnerSym : unique symbol
+
+        // switch on _p
+    }
+}
+

tests/baselines/reference/jsDeclarationsDefault.js

@@ -0,0 +1,141 @@
+//// [tests/cases/conformance/jsdoc/declarations/jsDeclarationsDefault.ts] ////
+
+//// [index1.js]
+export default 12;
+
+//// [index2.js]
+export default function foo() {
+    return foo;
+}
+export const x = foo;
+export { foo as bar };
+
+//// [index3.js]
+export default class Foo {
+    a = /** @type {Foo} */(null);
+};
+export const X = Foo;
+export { Foo as Bar };
+
+//// [index4.js]
+import Fab from "./index3";
+class Bar extends Fab {
+    x = /** @type {Bar} */(null);
+}
+export default Bar;
+
+//// [index5.js]
+// merge type alias and const (OK)
+export default 12;
+/**
+ * @typedef {string | number} default
+ */
+
+//// [index6.js]
+// merge type alias and function (OK)
+export default function func() {};
+/**
+ * @typedef {string | number} default
+ */
+
+
+//// [index1.js]
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.default = 12;
+//// [index2.js]
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+function foo() {
+    return foo;
+}
+exports.default = foo;
+exports.bar = foo;
+exports.x = foo;
+//// [index3.js]
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+var Foo = /** @class */ (function () {
+    function Foo() {
+        this.a = (null);
+    }
+    return Foo;
+}());
+exports.Bar = Foo;
+exports.default = Foo;
+;
+exports.X = Foo;
+//// [index4.js]
+"use strict";
+var __extends = (this && this.__extends) || (function () {
+    var extendStatics = function (d, b) {
+        extendStatics = Object.setPrototypeOf ||
+            ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
+            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
+        return extendStatics(d, b);
+    };
+    return function (d, b) {
+        extendStatics(d, b);
+        function __() { this.constructor = d; }
+        d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
+    };
+})();
+Object.defineProperty(exports, "__esModule", { value: true });
+var index3_1 = require("./index3");
+var Bar = /** @class */ (function (_super) {
+    __extends(Bar, _super);
+    function Bar() {
+        var _this = _super !== null && _super.apply(this, arguments) || this;
+        _this.x = (null);
+        return _this;
+    }
+    return Bar;
+}(index3_1.default));
+exports.default = Bar;
+//// [index5.js]
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+// merge type alias and const (OK)
+exports.default = 12;
+/**
+ * @typedef {string | number} default
+ */
+//// [index6.js]
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+// merge type alias and function (OK)
+function func() { }
+exports.default = func;
+;
+/**
+ * @typedef {string | number} default
+ */
+
+
+//// [index1.d.ts]
+declare var _default: 12;
+export default _default;
+//// [index2.d.ts]
+export default function foo(): typeof foo;
+export function x(): typeof foo;
+export { foo as bar };
+//// [index3.d.ts]
+export default class Foo {
+    a: Foo;
+}
+export const X: typeof Foo;
+export { Foo as Bar };
+//// [index4.d.ts]
+export default Bar;
+declare class Bar extends Fab {
+    x: Bar;
+}
+import Fab from "./index3";
+//// [index5.d.ts]
+type _default = string | number;
+declare var _default: 12;
+export default _default;
+//// [index6.d.ts]
+declare function func(): void;
+type func = string | number;
+export default func;

tests/baselines/reference/jsDeclarationsDefault.symbols

@@ -0,0 +1,64 @@
+=== tests/cases/conformance/jsdoc/declarations/index1.js ===
+export default 12;
+No type information for this code.
+No type information for this code.=== tests/cases/conformance/jsdoc/declarations/index2.js ===
+export default function foo() {
+>foo : Symbol(foo, Decl(index2.js, 0, 0))
+
+    return foo;
+>foo : Symbol(foo, Decl(index2.js, 0, 0))
+}
+export const x = foo;
+>x : Symbol(x, Decl(index2.js, 3, 12))
+>foo : Symbol(foo, Decl(index2.js, 0, 0))
+
+export { foo as bar };
+>foo : Symbol(foo, Decl(index2.js, 0, 0))
+>bar : Symbol(bar, Decl(index2.js, 4, 8))
+
+=== tests/cases/conformance/jsdoc/declarations/index3.js ===
+export default class Foo {
+>Foo : Symbol(Foo, Decl(index3.js, 0, 0))
+
+    a = /** @type {Foo} */(null);
+>a : Symbol(Foo.a, Decl(index3.js, 0, 26))
+
+};
+export const X = Foo;
+>X : Symbol(X, Decl(index3.js, 3, 12))
+>Foo : Symbol(Foo, Decl(index3.js, 0, 0))
+
+export { Foo as Bar };
+>Foo : Symbol(Foo, Decl(index3.js, 0, 0))
+>Bar : Symbol(Bar, Decl(index3.js, 4, 8))
+
+=== tests/cases/conformance/jsdoc/declarations/index4.js ===
+import Fab from "./index3";
+>Fab : Symbol(Fab, Decl(index4.js, 0, 6))
+
+class Bar extends Fab {
+>Bar : Symbol(Bar, Decl(index4.js, 0, 27))
+>Fab : Symbol(Fab, Decl(index4.js, 0, 6))
+
+    x = /** @type {Bar} */(null);
+>x : Symbol(Bar.x, Decl(index4.js, 1, 23))
+}
+export default Bar;
+>Bar : Symbol(Bar, Decl(index4.js, 0, 27))
+
+=== tests/cases/conformance/jsdoc/declarations/index5.js ===
+// merge type alias and const (OK)
+No type information for this code.export default 12;
+No type information for this code./**
+No type information for this code. * @typedef {string | number} default
+No type information for this code. */
+No type information for this code.
+No type information for this code.=== tests/cases/conformance/jsdoc/declarations/index6.js ===
+// merge type alias and function (OK)
+export default function func() {};
+>func : Symbol(func, Decl(index6.js, 0, 0), Decl(index6.js, 3, 3))
+
+/**
+ * @typedef {string | number} default
+ */
+

tests/baselines/reference/jsDeclarationsDefault.types

@@ -0,0 +1,68 @@
+=== tests/cases/conformance/jsdoc/declarations/index1.js ===
+export default 12;
+No type information for this code.
+No type information for this code.=== tests/cases/conformance/jsdoc/declarations/index2.js ===
+export default function foo() {
+>foo : () => typeof foo
+
+    return foo;
+>foo : () => typeof foo
+}
+export const x = foo;
+>x : () => typeof foo
+>foo : () => typeof foo
+
+export { foo as bar };
+>foo : () => typeof foo
+>bar : () => typeof foo
+
+=== tests/cases/conformance/jsdoc/declarations/index3.js ===
+export default class Foo {
+>Foo : Foo
+
+    a = /** @type {Foo} */(null);
+>a : Foo
+>(null) : Foo
+>null : null
+
+};
+export const X = Foo;
+>X : typeof Foo
+>Foo : typeof Foo
+
+export { Foo as Bar };
+>Foo : typeof Foo
+>Bar : typeof Foo
+
+=== tests/cases/conformance/jsdoc/declarations/index4.js ===
+import Fab from "./index3";
+>Fab : typeof Fab
+
+class Bar extends Fab {
+>Bar : Bar
+>Fab : Fab
+
+    x = /** @type {Bar} */(null);
+>x : Bar
+>(null) : Bar
+>null : null
+}
+export default Bar;
+>Bar : Bar
+
+=== tests/cases/conformance/jsdoc/declarations/index5.js ===
+// merge type alias and const (OK)
+No type information for this code.export default 12;
+No type information for this code./**
+No type information for this code. * @typedef {string | number} default
+No type information for this code. */
+No type information for this code.
+No type information for this code.=== tests/cases/conformance/jsdoc/declarations/index6.js ===
+// merge type alias and function (OK)
+export default function func() {};
+>func : () => void
+
+/**
+ * @typedef {string | number} default
+ */
+

tests/baselines/reference/jsDeclarationsDefaultsErr.errors.txt

@@ -0,0 +1,34 @@
+tests/cases/conformance/jsdoc/declarations/index2.js(2,22): error TS2300: Duplicate identifier 'C'.
+tests/cases/conformance/jsdoc/declarations/index2.js(4,31): error TS2300: Duplicate identifier 'default'.
+
+
+==== tests/cases/conformance/jsdoc/declarations/index1.js (0 errors) ====
+    // merge type alias and alias (should error, see #32367)
+    class Cls {
+        x = 12;
+        static y = "ok"
+    }
+    export default Cls;
+    /**
+     * @typedef {string | number} default
+     */
+    
+==== tests/cases/conformance/jsdoc/declarations/index2.js (2 errors) ====
+    // merge type alias and class (error message improvement needed, see #32368)
+    export default class C {};
+                         ~
+!!! error TS2300: Duplicate identifier 'C'.
+    /**
+     * @typedef {string | number} default
+                                  ~~~~~~~
+!!! error TS2300: Duplicate identifier 'default'.
+     */
+    
+==== tests/cases/conformance/jsdoc/declarations/index3.js (0 errors) ====
+    // merge type alias and variable (behavior is borked, see #32366)
+    const x = 12;
+    export {x as default};
+    /**
+     * @typedef {string | number} default
+     */
+    

tests/baselines/reference/jsDeclarationsDefaultsErr.js

@@ -0,0 +1,83 @@
+//// [tests/cases/conformance/jsdoc/declarations/jsDeclarationsDefaultsErr.ts] ////
+
+//// [index1.js]
+// merge type alias and alias (should error, see #32367)
+class Cls {
+    x = 12;
+    static y = "ok"
+}
+export default Cls;
+/**
+ * @typedef {string | number} default
+ */
+
+//// [index2.js]
+// merge type alias and class (error message improvement needed, see #32368)
+export default class C {};
+/**
+ * @typedef {string | number} default
+ */
+
+//// [index3.js]
+// merge type alias and variable (behavior is borked, see #32366)
+const x = 12;
+export {x as default};
+/**
+ * @typedef {string | number} default
+ */
+
+
+//// [index1.js]
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+// merge type alias and alias (should error, see #32367)
+var Cls = /** @class */ (function () {
+    function Cls() {
+        this.x = 12;
+    }
+    Cls.y = "ok";
+    return Cls;
+}());
+exports.default = Cls;
+/**
+ * @typedef {string | number} default
+ */
+//// [index2.js]
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+// merge type alias and class (error message improvement needed, see #32368)
+var C = /** @class */ (function () {
+    function C() {
+    }
+    return C;
+}());
+exports.default = C;
+;
+/**
+ * @typedef {string | number} default
+ */
+//// [index3.js]
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+// merge type alias and variable (behavior is borked, see #32366)
+var x = 12;
+exports.default = x;
+/**
+ * @typedef {string | number} default
+ */
+
+
+//// [index1.d.ts]
+export type Cls = string | number;
+export default Cls;
+declare class Cls {
+    static y: string;
+    x: number;
+}
+//// [index2.d.ts]
+export default class C {
+}
+//// [index3.d.ts]
+export type _default = string | number;
+export { x as default };
+declare const x: 12;

tests/baselines/reference/jsDeclarationsDefaultsErr.symbols

@@ -0,0 +1,40 @@
+=== tests/cases/conformance/jsdoc/declarations/index1.js ===
+// merge type alias and alias (should error, see #32367)
+class Cls {
+>Cls : Symbol(Cls, Decl(index1.js, 0, 0))
+
+    x = 12;
+>x : Symbol(Cls.x, Decl(index1.js, 1, 11))
+
+    static y = "ok"
+>y : Symbol(Cls.y, Decl(index1.js, 2, 11))
+}
+export default Cls;
+>Cls : Symbol(Cls, Decl(index1.js, 0, 0))
+
+/**
+ * @typedef {string | number} default
+ */
+
+=== tests/cases/conformance/jsdoc/declarations/index2.js ===
+// merge type alias and class (error message improvement needed, see #32368)
+export default class C {};
+>C : Symbol(C, Decl(index2.js, 0, 0))
+
+/**
+ * @typedef {string | number} default
+ */
+
+=== tests/cases/conformance/jsdoc/declarations/index3.js ===
+// merge type alias and variable (behavior is borked, see #32366)
+const x = 12;
+>x : Symbol(x, Decl(index3.js, 1, 5))
+
+export {x as default};
+>x : Symbol(x, Decl(index3.js, 1, 5))
+>default : Symbol(default, Decl(index3.js, 2, 8), Decl(index3.js, 4, 3))
+
+/**
+ * @typedef {string | number} default
+ */
+

tests/baselines/reference/jsDeclarationsDefaultsErr.types

@@ -0,0 +1,43 @@
+=== tests/cases/conformance/jsdoc/declarations/index1.js ===
+// merge type alias and alias (should error, see #32367)
+class Cls {
+>Cls : Cls
+
+    x = 12;
+>x : number
+>12 : 12
+
+    static y = "ok"
+>y : string
+>"ok" : "ok"
+}
+export default Cls;
+>Cls : Cls
+
+/**
+ * @typedef {string | number} default
+ */
+
+=== tests/cases/conformance/jsdoc/declarations/index2.js ===
+// merge type alias and class (error message improvement needed, see #32368)
+export default class C {};
+>C : C
+
+/**
+ * @typedef {string | number} default
+ */
+
+=== tests/cases/conformance/jsdoc/declarations/index3.js ===
+// merge type alias and variable (behavior is borked, see #32366)
+const x = 12;
+>x : 12
+>12 : 12
+
+export {x as default};
+>x : 12
+>default : 12
+
+/**
+ * @typedef {string | number} default
+ */
+

tests/baselines/reference/jsDeclarationsEnumTag.js

@@ -0,0 +1,130 @@
+//// [index.js]
+/** @enum {string} */
+export const Target = {
+    START: "start",
+    MIDDLE: "middle",
+    END: "end",
+    /** @type {number} */
+    OK_I_GUESS: 2
+}
+/** @enum number */
+export const Second = {
+    OK: 1,
+    /** @type {number} */
+    FINE: 2,
+}
+/** @enum {function(number): number} */
+export const Fs = {
+    ADD1: n => n + 1,
+    ID: n => n,
+    SUB1: n => n - 1
+}
+
+/**
+ * @param {Target} t
+ * @param {Second} s
+ * @param {Fs} f
+ */
+export function consume(t,s,f) {
+    /** @type {string} */
+    var str = t
+    /** @type {number} */
+    var num = s
+    /** @type {(n: number) => number} */
+    var fun = f
+    /** @type {Target} */
+    var v = Target.START
+    v = 'something else' // allowed, like Typescript's classic enums and unlike its string enums
+}
+/** @param {string} s */
+export function ff(s) {
+    // element access with arbitrary string is an error only with noImplicitAny
+    if (!Target[s]) {
+        return null
+    }
+    else {
+        return Target[s]
+    }
+}
+
+
+//// [index.js]
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+/** @enum {string} */
+exports.Target = {
+    START: "start",
+    MIDDLE: "middle",
+    END: "end",
+    /** @type {number} */
+    OK_I_GUESS: 2
+};
+/** @enum number */
+exports.Second = {
+    OK: 1,
+    /** @type {number} */
+    FINE: 2,
+};
+/** @enum {function(number): number} */
+exports.Fs = {
+    ADD1: function (n) { return n + 1; },
+    ID: function (n) { return n; },
+    SUB1: function (n) { return n - 1; }
+};
+/**
+ * @param {Target} t
+ * @param {Second} s
+ * @param {Fs} f
+ */
+function consume(t, s, f) {
+    /** @type {string} */
+    var str = t;
+    /** @type {number} */
+    var num = s;
+    /** @type {(n: number) => number} */
+    var fun = f;
+    /** @type {Target} */
+    var v = exports.Target.START;
+    v = 'something else'; // allowed, like Typescript's classic enums and unlike its string enums
+}
+exports.consume = consume;
+/** @param {string} s */
+function ff(s) {
+    // element access with arbitrary string is an error only with noImplicitAny
+    if (!exports.Target[s]) {
+        return null;
+    }
+    else {
+        return exports.Target[s];
+    }
+}
+exports.ff = ff;
+
+
+//// [index.d.ts]
+/**
+ * @param {Target} t
+ * @param {Second} s
+ * @param {Fs} f
+ */
+export function consume(t: string, s: number, f: (arg0: number) => number): void;
+/** @param {string} s */
+export function ff(s: string): any;
+export type Target = string;
+export namespace Target {
+    export const START: string;
+    export const MIDDLE: string;
+    export const END: string;
+    export const OK_I_GUESS: number;
+}
+export type Second = number;
+export namespace Second {
+    export const OK: number;
+    export const FINE: number;
+}
+export type Fs = (arg0: number) => number;
+export namespace Fs {
+    export function ADD1(n: any): any;
+    export function ID(n: any): any;
+    export function SUB1(n: any): number;
+}

tests/baselines/reference/jsDeclarationsEnumTag.symbols

@@ -0,0 +1,104 @@
+=== tests/cases/conformance/jsdoc/declarations/index.js ===
+/** @enum {string} */
+export const Target = {
+>Target : Symbol(Target, Decl(index.js, 1, 12), Decl(index.js, 0, 4))
+
+    START: "start",
+>START : Symbol(START, Decl(index.js, 1, 23))
+
+    MIDDLE: "middle",
+>MIDDLE : Symbol(MIDDLE, Decl(index.js, 2, 19))
+
+    END: "end",
+>END : Symbol(END, Decl(index.js, 3, 21))
+
+    /** @type {number} */
+    OK_I_GUESS: 2
+>OK_I_GUESS : Symbol(OK_I_GUESS, Decl(index.js, 4, 15))
+}
+/** @enum number */
+export const Second = {
+>Second : Symbol(Second, Decl(index.js, 9, 12), Decl(index.js, 8, 4))
+
+    OK: 1,
+>OK : Symbol(OK, Decl(index.js, 9, 23))
+
+    /** @type {number} */
+    FINE: 2,
+>FINE : Symbol(FINE, Decl(index.js, 10, 10))
+}
+/** @enum {function(number): number} */
+export const Fs = {
+>Fs : Symbol(Fs, Decl(index.js, 15, 12), Decl(index.js, 14, 4))
+
+    ADD1: n => n + 1,
+>ADD1 : Symbol(ADD1, Decl(index.js, 15, 19))
+>n : Symbol(n, Decl(index.js, 16, 9))
+>n : Symbol(n, Decl(index.js, 16, 9))
+
+    ID: n => n,
+>ID : Symbol(ID, Decl(index.js, 16, 21))
+>n : Symbol(n, Decl(index.js, 17, 7))
+>n : Symbol(n, Decl(index.js, 17, 7))
+
+    SUB1: n => n - 1
+>SUB1 : Symbol(SUB1, Decl(index.js, 17, 15))
+>n : Symbol(n, Decl(index.js, 18, 9))
+>n : Symbol(n, Decl(index.js, 18, 9))
+}
+
+/**
+ * @param {Target} t
+ * @param {Second} s
+ * @param {Fs} f
+ */
+export function consume(t,s,f) {
+>consume : Symbol(consume, Decl(index.js, 19, 1))
+>t : Symbol(t, Decl(index.js, 26, 24))
+>s : Symbol(s, Decl(index.js, 26, 26))
+>f : Symbol(f, Decl(index.js, 26, 28))
+
+    /** @type {string} */
+    var str = t
+>str : Symbol(str, Decl(index.js, 28, 7))
+>t : Symbol(t, Decl(index.js, 26, 24))
+
+    /** @type {number} */
+    var num = s
+>num : Symbol(num, Decl(index.js, 30, 7))
+>s : Symbol(s, Decl(index.js, 26, 26))
+
+    /** @type {(n: number) => number} */
+    var fun = f
+>fun : Symbol(fun, Decl(index.js, 32, 7))
+>f : Symbol(f, Decl(index.js, 26, 28))
+
+    /** @type {Target} */
+    var v = Target.START
+>v : Symbol(v, Decl(index.js, 34, 7))
+>Target.START : Symbol(START, Decl(index.js, 1, 23))
+>Target : Symbol(Target, Decl(index.js, 1, 12), Decl(index.js, 0, 4))
+>START : Symbol(START, Decl(index.js, 1, 23))
+
+    v = 'something else' // allowed, like Typescript's classic enums and unlike its string enums
+>v : Symbol(v, Decl(index.js, 34, 7))
+}
+/** @param {string} s */
+export function ff(s) {
+>ff : Symbol(ff, Decl(index.js, 36, 1))
+>s : Symbol(s, Decl(index.js, 38, 19))
+
+    // element access with arbitrary string is an error only with noImplicitAny
+    if (!Target[s]) {
+>Target : Symbol(Target, Decl(index.js, 1, 12), Decl(index.js, 0, 4))
+>s : Symbol(s, Decl(index.js, 38, 19))
+
+        return null
+    }
+    else {
+        return Target[s]
+>Target : Symbol(Target, Decl(index.js, 1, 12), Decl(index.js, 0, 4))
+>s : Symbol(s, Decl(index.js, 38, 19))
+    }
+}
+

tests/baselines/reference/jsDeclarationsEnumTag.types

@@ -0,0 +1,126 @@
+=== tests/cases/conformance/jsdoc/declarations/index.js ===
+/** @enum {string} */
+export const Target = {
+>Target : { START: string; MIDDLE: string; END: string; OK_I_GUESS: number; }
+>{    START: "start",    MIDDLE: "middle",    END: "end",    /** @type {number} */    OK_I_GUESS: 2} : { START: string; MIDDLE: string; END: string; OK_I_GUESS: number; }
+
+    START: "start",
+>START : string
+>"start" : "start"
+
+    MIDDLE: "middle",
+>MIDDLE : string
+>"middle" : "middle"
+
+    END: "end",
+>END : string
+>"end" : "end"
+
+    /** @type {number} */
+    OK_I_GUESS: 2
+>OK_I_GUESS : number
+>2 : 2
+}
+/** @enum number */
+export const Second = {
+>Second : { OK: number; FINE: number; }
+>{    OK: 1,    /** @type {number} */    FINE: 2,} : { OK: number; FINE: number; }
+
+    OK: 1,
+>OK : number
+>1 : 1
+
+    /** @type {number} */
+    FINE: 2,
+>FINE : number
+>2 : 2
+}
+/** @enum {function(number): number} */
+export const Fs = {
+>Fs : { ADD1: (n: any) => any; ID: (n: any) => any; SUB1: (n: any) => number; }
+>{    ADD1: n => n + 1,    ID: n => n,    SUB1: n => n - 1} : { ADD1: (n: any) => any; ID: (n: any) => any; SUB1: (n: any) => number; }
+
+    ADD1: n => n + 1,
+>ADD1 : (n: any) => any
+>n => n + 1 : (n: any) => any
+>n : any
+>n + 1 : any
+>n : any
+>1 : 1
+
+    ID: n => n,
+>ID : (n: any) => any
+>n => n : (n: any) => any
+>n : any
+>n : any
+
+    SUB1: n => n - 1
+>SUB1 : (n: any) => number
+>n => n - 1 : (n: any) => number
+>n : any
+>n - 1 : number
+>n : any
+>1 : 1
+}
+
+/**
+ * @param {Target} t
+ * @param {Second} s
+ * @param {Fs} f
+ */
+export function consume(t,s,f) {
+>consume : (t: string, s: number, f: (arg0: number) => number) => void
+>t : string
+>s : number
+>f : (arg0: number) => number
+
+    /** @type {string} */
+    var str = t
+>str : string
+>t : string
+
+    /** @type {number} */
+    var num = s
+>num : number
+>s : number
+
+    /** @type {(n: number) => number} */
+    var fun = f
+>fun : (n: number) => number
+>f : (arg0: number) => number
+
+    /** @type {Target} */
+    var v = Target.START
+>v : string
+>Target.START : string
+>Target : { START: string; MIDDLE: string; END: string; OK_I_GUESS: number; }
+>START : string
+
+    v = 'something else' // allowed, like Typescript's classic enums and unlike its string enums
+>v = 'something else' : "something else"
+>v : string
+>'something else' : "something else"
+}
+/** @param {string} s */
+export function ff(s) {
+>ff : (s: string) => any
+>s : string
+
+    // element access with arbitrary string is an error only with noImplicitAny
+    if (!Target[s]) {
+>!Target[s] : boolean
+>Target[s] : error
+>Target : { START: string; MIDDLE: string; END: string; OK_I_GUESS: number; }
+>s : string
+
+        return null
+>null : null
+    }
+    else {
+        return Target[s]
+>Target[s] : error
+>Target : { START: string; MIDDLE: string; END: string; OK_I_GUESS: number; }
+>s : string
+    }
+}
+

tests/baselines/reference/jsDeclarationsEnums.errors.txt

@@ -0,0 +1,101 @@
+tests/cases/conformance/jsdoc/declarations/index.js(4,13): error TS8015: 'enum declarations' can only be used in a .ts file.
+tests/cases/conformance/jsdoc/declarations/index.js(6,13): error TS8015: 'enum declarations' can only be used in a .ts file.
+tests/cases/conformance/jsdoc/declarations/index.js(10,6): error TS8015: 'enum declarations' can only be used in a .ts file.
+tests/cases/conformance/jsdoc/declarations/index.js(14,6): error TS8015: 'enum declarations' can only be used in a .ts file.
+tests/cases/conformance/jsdoc/declarations/index.js(18,13): error TS8015: 'enum declarations' can only be used in a .ts file.
+tests/cases/conformance/jsdoc/declarations/index.js(22,13): error TS8015: 'enum declarations' can only be used in a .ts file.
+tests/cases/conformance/jsdoc/declarations/index.js(24,13): error TS8015: 'enum declarations' can only be used in a .ts file.
+tests/cases/conformance/jsdoc/declarations/index.js(30,13): error TS8015: 'enum declarations' can only be used in a .ts file.
+tests/cases/conformance/jsdoc/declarations/index.js(35,13): error TS8015: 'enum declarations' can only be used in a .ts file.
+tests/cases/conformance/jsdoc/declarations/index.js(41,19): error TS8015: 'enum declarations' can only be used in a .ts file.
+tests/cases/conformance/jsdoc/declarations/index.js(47,13): error TS8015: 'enum declarations' can only be used in a .ts file.
+tests/cases/conformance/jsdoc/declarations/index.js(55,19): error TS8015: 'enum declarations' can only be used in a .ts file.
+
+
+==== tests/cases/conformance/jsdoc/declarations/index.js (12 errors) ====
+    // Pretty much all of this should be an error, (since enums are forbidden in js),
+    // but we should be able to synthesize declarations from the symbols regardless
+    
+    export enum A {}
+                ~
+!!! error TS8015: 'enum declarations' can only be used in a .ts file.
+    
+    export enum B {
+                ~
+!!! error TS8015: 'enum declarations' can only be used in a .ts file.
+        Member
+    }
+    
+    enum C {}
+         ~
+!!! error TS8015: 'enum declarations' can only be used in a .ts file.
+    
+    export { C };
+    
+    enum DD {}
+         ~~
+!!! error TS8015: 'enum declarations' can only be used in a .ts file.
+    
+    export { DD as D };
+    
+    export enum E {}
+                ~
+!!! error TS8015: 'enum declarations' can only be used in a .ts file.
+    export { E as EE };
+    
+    export { F as FF };
+    export enum F {}
+                ~
+!!! error TS8015: 'enum declarations' can only be used in a .ts file.
+    
+    export enum G {
+                ~
+!!! error TS8015: 'enum declarations' can only be used in a .ts file.
+        A = 1,
+        B,
+        C
+    }
+    
+    export enum H {
+                ~
+!!! error TS8015: 'enum declarations' can only be used in a .ts file.
+        A = "a",
+        B = "b"
+    }
+    
+    export enum I {
+                ~
+!!! error TS8015: 'enum declarations' can only be used in a .ts file.
+        A = "a",
+        B = 0,
+        C
+    }
+    
+    export const enum J {
+                      ~
+!!! error TS8015: 'enum declarations' can only be used in a .ts file.
+        A = 1,
+        B,
+        C
+    }
+    
+    export enum K {
+                ~
+!!! error TS8015: 'enum declarations' can only be used in a .ts file.
+        None   = 0,
+        A = 1 << 0,
+        B = 1 << 1,
+        C = 1 << 2,
+        Mask = A | B | C,
+    }
+    
+    export const enum L {
+                      ~
+!!! error TS8015: 'enum declarations' can only be used in a .ts file.
+        None   = 0,
+        A = 1 << 0,
+        B = 1 << 1,
+        C = 1 << 2,
+        Mask = A | B | C,
+    }
+    

tests/baselines/reference/jsDeclarationsEnums.js

@@ -0,0 +1,167 @@
+//// [index.js]
+// Pretty much all of this should be an error, (since enums are forbidden in js),
+// but we should be able to synthesize declarations from the symbols regardless
+
+export enum A {}
+
+export enum B {
+    Member
+}
+
+enum C {}
+
+export { C };
+
+enum DD {}
+
+export { DD as D };
+
+export enum E {}
+export { E as EE };
+
+export { F as FF };
+export enum F {}
+
+export enum G {
+    A = 1,
+    B,
+    C
+}
+
+export enum H {
+    A = "a",
+    B = "b"
+}
+
+export enum I {
+    A = "a",
+    B = 0,
+    C
+}
+
+export const enum J {
+    A = 1,
+    B,
+    C
+}
+
+export enum K {
+    None   = 0,
+    A = 1 << 0,
+    B = 1 << 1,
+    C = 1 << 2,
+    Mask = A | B | C,
+}
+
+export const enum L {
+    None   = 0,
+    A = 1 << 0,
+    B = 1 << 1,
+    C = 1 << 2,
+    Mask = A | B | C,
+}
+
+
+//// [index.js]
+"use strict";
+// Pretty much all of this should be an error, (since enums are forbidden in js),
+// but we should be able to synthesize declarations from the symbols regardless
+Object.defineProperty(exports, "__esModule", { value: true });
+var A;
+(function (A) {
+})(A = exports.A || (exports.A = {}));
+var B;
+(function (B) {
+    B[B["Member"] = 0] = "Member";
+})(B = exports.B || (exports.B = {}));
+var C;
+(function (C) {
+})(C || (C = {}));
+exports.C = C;
+var DD;
+(function (DD) {
+})(DD || (DD = {}));
+exports.D = DD;
+var E;
+(function (E) {
+})(E = exports.E || (exports.E = {}));
+exports.EE = E;
+var F;
+(function (F) {
+})(F = exports.F || (exports.F = {}));
+exports.FF = F;
+var G;
+(function (G) {
+    G[G["A"] = 1] = "A";
+    G[G["B"] = 2] = "B";
+    G[G["C"] = 3] = "C";
+})(G = exports.G || (exports.G = {}));
+var H;
+(function (H) {
+    H["A"] = "a";
+    H["B"] = "b";
+})(H = exports.H || (exports.H = {}));
+var I;
+(function (I) {
+    I["A"] = "a";
+    I[I["B"] = 0] = "B";
+    I[I["C"] = 1] = "C";
+})(I = exports.I || (exports.I = {}));
+var K;
+(function (K) {
+    K[K["None"] = 0] = "None";
+    K[K["A"] = 1] = "A";
+    K[K["B"] = 2] = "B";
+    K[K["C"] = 4] = "C";
+    K[K["Mask"] = 7] = "Mask";
+})(K = exports.K || (exports.K = {}));
+
+
+//// [index.d.ts]
+export enum A {
+}
+export enum B {
+    Member = 0
+}
+export enum E {
+}
+export enum F {
+}
+export enum G {
+    A = 1,
+    B = 2,
+    C = 3
+}
+export enum H {
+    A = "a",
+    B = "b"
+}
+export enum I {
+    A = "a",
+    B = 0,
+    C = 1
+}
+export const enum J {
+    A = 1,
+    B = 2,
+    C = 3
+}
+export enum K {
+    None = 0,
+    A = 1,
+    B = 2,
+    C = 4,
+    Mask = 7
+}
+export const enum L {
+    None = 0,
+    A = 1,
+    B = 2,
+    C = 4,
+    Mask = 7
+}
+export enum C {
+}
+declare enum DD {
+}
+export { DD as D, E as EE, F as FF };

tests/baselines/reference/jsDeclarationsEnums.symbols

@@ -0,0 +1,134 @@
+=== tests/cases/conformance/jsdoc/declarations/index.js ===
+// Pretty much all of this should be an error, (since enums are forbidden in js),
+// but we should be able to synthesize declarations from the symbols regardless
+
+export enum A {}
+>A : Symbol(A, Decl(index.js, 0, 0))
+
+export enum B {
+>B : Symbol(B, Decl(index.js, 3, 16))
+
+    Member
+>Member : Symbol(B.Member, Decl(index.js, 5, 15))
+}
+
+enum C {}
+>C : Symbol(C, Decl(index.js, 7, 1))
+
+export { C };
+>C : Symbol(C, Decl(index.js, 11, 8))
+
+enum DD {}
+>DD : Symbol(DD, Decl(index.js, 11, 13))
+
+export { DD as D };
+>DD : Symbol(DD, Decl(index.js, 11, 13))
+>D : Symbol(D, Decl(index.js, 15, 8))
+
+export enum E {}
+>E : Symbol(E, Decl(index.js, 15, 19))
+
+export { E as EE };
+>E : Symbol(E, Decl(index.js, 15, 19))
+>EE : Symbol(EE, Decl(index.js, 18, 8))
+
+export { F as FF };
+>F : Symbol(F, Decl(index.js, 20, 19))
+>FF : Symbol(FF, Decl(index.js, 20, 8))
+
+export enum F {}
+>F : Symbol(F, Decl(index.js, 20, 19))
+
+export enum G {
+>G : Symbol(G, Decl(index.js, 21, 16))
+
+    A = 1,
+>A : Symbol(G.A, Decl(index.js, 23, 15))
+
+    B,
+>B : Symbol(G.B, Decl(index.js, 24, 10))
+
+    C
+>C : Symbol(G.C, Decl(index.js, 25, 6))
+}
+
+export enum H {
+>H : Symbol(H, Decl(index.js, 27, 1))
+
+    A = "a",
+>A : Symbol(H.A, Decl(index.js, 29, 15))
+
+    B = "b"
+>B : Symbol(H.B, Decl(index.js, 30, 12))
+}
+
+export enum I {
+>I : Symbol(I, Decl(index.js, 32, 1))
+
+    A = "a",
+>A : Symbol(I.A, Decl(index.js, 34, 15))
+
+    B = 0,
+>B : Symbol(I.B, Decl(index.js, 35, 12))
+
+    C
+>C : Symbol(I.C, Decl(index.js, 36, 10))
+}
+
+export const enum J {
+>J : Symbol(J, Decl(index.js, 38, 1))
+
+    A = 1,
+>A : Symbol(J.A, Decl(index.js, 40, 21))
+
+    B,
+>B : Symbol(J.B, Decl(index.js, 41, 10))
+
+    C
+>C : Symbol(J.C, Decl(index.js, 42, 6))
+}
+
+export enum K {
+>K : Symbol(K, Decl(index.js, 44, 1))
+
+    None   = 0,
+>None : Symbol(K.None, Decl(index.js, 46, 15))
+
+    A = 1 << 0,
+>A : Symbol(K.A, Decl(index.js, 47, 15))
+
+    B = 1 << 1,
+>B : Symbol(K.B, Decl(index.js, 48, 15))
+
+    C = 1 << 2,
+>C : Symbol(K.C, Decl(index.js, 49, 15))
+
+    Mask = A | B | C,
+>Mask : Symbol(K.Mask, Decl(index.js, 50, 15))
+>A : Symbol(K.A, Decl(index.js, 47, 15))
+>B : Symbol(K.B, Decl(index.js, 48, 15))
+>C : Symbol(K.C, Decl(index.js, 49, 15))
+}
+
+export const enum L {
+>L : Symbol(L, Decl(index.js, 52, 1))
+
+    None   = 0,
+>None : Symbol(L.None, Decl(index.js, 54, 21))
+
+    A = 1 << 0,
+>A : Symbol(L.A, Decl(index.js, 55, 15))
+
+    B = 1 << 1,
+>B : Symbol(L.B, Decl(index.js, 56, 15))
+
+    C = 1 << 2,
+>C : Symbol(L.C, Decl(index.js, 57, 15))
+
+    Mask = A | B | C,
+>Mask : Symbol(L.Mask, Decl(index.js, 58, 15))
+>A : Symbol(L.A, Decl(index.js, 55, 15))
+>B : Symbol(L.B, Decl(index.js, 56, 15))
+>C : Symbol(L.C, Decl(index.js, 57, 15))
+}
+

tests/baselines/reference/jsDeclarationsEnums.types

@@ -0,0 +1,164 @@
+=== tests/cases/conformance/jsdoc/declarations/index.js ===
+// Pretty much all of this should be an error, (since enums are forbidden in js),
+// but we should be able to synthesize declarations from the symbols regardless
+
+export enum A {}
+>A : A
+
+export enum B {
+>B : B
+
+    Member
+>Member : B.Member
+}
+
+enum C {}
+>C : C
+
+export { C };
+>C : typeof C
+
+enum DD {}
+>DD : DD
+
+export { DD as D };
+>DD : typeof DD
+>D : typeof DD
+
+export enum E {}
+>E : E
+
+export { E as EE };
+>E : typeof E
+>EE : typeof E
+
+export { F as FF };
+>F : typeof F
+>FF : typeof F
+
+export enum F {}
+>F : F
+
+export enum G {
+>G : G
+
+    A = 1,
+>A : G.A
+>1 : 1
+
+    B,
+>B : G.B
+
+    C
+>C : G.C
+}
+
+export enum H {
+>H : H
+
+    A = "a",
+>A : H.A
+>"a" : "a"
+
+    B = "b"
+>B : H.B
+>"b" : "b"
+}
+
+export enum I {
+>I : I
+
+    A = "a",
+>A : I.A
+>"a" : "a"
+
+    B = 0,
+>B : I.B
+>0 : 0
+
+    C
+>C : I.C
+}
+
+export const enum J {
+>J : J
+
+    A = 1,
+>A : J.A
+>1 : 1
+
+    B,
+>B : J.B
+
+    C
+>C : J.C
+}
+
+export enum K {
+>K : K
+
+    None   = 0,
+>None : K
+>0 : 0
+
+    A = 1 << 0,
+>A : K
+>1 << 0 : number
+>1 : 1
+>0 : 0
+
+    B = 1 << 1,
+>B : K
+>1 << 1 : number
+>1 : 1
+>1 : 1
+
+    C = 1 << 2,
+>C : K
+>1 << 2 : number
+>1 : 1
+>2 : 2
+
+    Mask = A | B | C,
+>Mask : K
+>A | B | C : number
+>A | B : number
+>A : K
+>B : K
+>C : K
+}
+
+export const enum L {
+>L : L
+
+    None   = 0,
+>None : L
+>0 : 0
+
+    A = 1 << 0,
+>A : L
+>1 << 0 : number
+>1 : 1
+>0 : 0
+
+    B = 1 << 1,
+>B : L
+>1 << 1 : number
+>1 : 1
+>1 : 1
+
+    C = 1 << 2,
+>C : L
+>1 << 2 : number
+>1 : 1
+>2 : 2
+
+    Mask = A | B | C,
+>Mask : L
+>A | B | C : number
+>A | B : number
+>A : L
+>B : L
+>C : L
+}
+

tests/baselines/reference/jsDeclarationsExportAssignedClassExpression.js

@@ -0,0 +1,31 @@
+//// [index.js]
+module.exports = class Thing {
+    /**
+     * @param {number} p
+     */
+    constructor(p) {
+        this.t = 12 + p;
+    }
+}
+
+//// [index.js]
+module.exports = /** @class */ (function () {
+    /**
+     * @param {number} p
+     */
+    function Thing(p) {
+        this.t = 12 + p;
+    }
+    return Thing;
+}());
+
+
+//// [index.d.ts]
+export = Thing;
+declare class Thing {
+    /**
+     * @param {number} p
+     */
+    constructor(p: number);
+    t: number;
+}

tests/baselines/reference/jsDeclarationsExportAssignedClassExpression.symbols

@@ -0,0 +1,20 @@
+=== tests/cases/conformance/jsdoc/declarations/index.js ===
+module.exports = class Thing {
+>module.exports : Symbol("tests/cases/conformance/jsdoc/declarations/index", Decl(index.js, 0, 0))
+>module : Symbol(export=, Decl(index.js, 0, 0))
+>exports : Symbol(export=, Decl(index.js, 0, 0))
+>Thing : Symbol(Thing, Decl(index.js, 0, 16))
+
+    /**
+     * @param {number} p
+     */
+    constructor(p) {
+>p : Symbol(p, Decl(index.js, 4, 16))
+
+        this.t = 12 + p;
+>this.t : Symbol(Thing.t, Decl(index.js, 4, 20))
+>this : Symbol(Thing, Decl(index.js, 0, 16))
+>t : Symbol(Thing.t, Decl(index.js, 4, 20))
+>p : Symbol(p, Decl(index.js, 4, 16))
+    }
+}

tests/baselines/reference/jsDeclarationsExportAssignedClassExpression.types

@@ -0,0 +1,25 @@
+=== tests/cases/conformance/jsdoc/declarations/index.js ===
+module.exports = class Thing {
+>module.exports = class Thing {    /**     * @param {number} p     */    constructor(p) {        this.t = 12 + p;    }} : typeof import("tests/cases/conformance/jsdoc/declarations/index")
+>module.exports : typeof import("tests/cases/conformance/jsdoc/declarations/index")
+>module : { "tests/cases/conformance/jsdoc/declarations/index": typeof import("tests/cases/conformance/jsdoc/declarations/index"); }
+>exports : typeof import("tests/cases/conformance/jsdoc/declarations/index")
+>class Thing {    /**     * @param {number} p     */    constructor(p) {        this.t = 12 + p;    }} : typeof import("tests/cases/conformance/jsdoc/declarations/index")
+>Thing : typeof import("tests/cases/conformance/jsdoc/declarations/index")
+
+    /**
+     * @param {number} p
+     */
+    constructor(p) {
+>p : number
+
+        this.t = 12 + p;
+>this.t = 12 + p : number
+>this.t : number
+>this : this
+>t : number
+>12 + p : number
+>12 : 12
+>p : number
+    }
+}

tests/baselines/reference/jsDeclarationsExportAssignedClassExpressionAnonymous.js

@@ -0,0 +1,31 @@
+//// [index.js]
+module.exports = class {
+    /**
+     * @param {number} p
+     */
+    constructor(p) {
+        this.t = 12 + p;
+    }
+}
+
+//// [index.js]
+module.exports = /** @class */ (function () {
+    /**
+     * @param {number} p
+     */
+    function exports(p) {
+        this.t = 12 + p;
+    }
+    return exports;
+}());
+
+
+//// [index.d.ts]
+export = exports;
+declare class exports {
+    /**
+     * @param {number} p
+     */
+    constructor(p: number);
+    t: number;
+}

tests/baselines/reference/jsDeclarationsExportAssignedClassExpressionAnonymous.symbols

@@ -0,0 +1,19 @@
+=== tests/cases/conformance/jsdoc/declarations/index.js ===
+module.exports = class {
+>module.exports : Symbol("tests/cases/conformance/jsdoc/declarations/index", Decl(index.js, 0, 0))
+>module : Symbol(export=, Decl(index.js, 0, 0))
+>exports : Symbol(export=, Decl(index.js, 0, 0))
+
+    /**
+     * @param {number} p
+     */
+    constructor(p) {
+>p : Symbol(p, Decl(index.js, 4, 16))
+
+        this.t = 12 + p;
+>this.t : Symbol(exports.t, Decl(index.js, 4, 20))
+>this : Symbol(exports, Decl(index.js, 0, 16))
+>t : Symbol(exports.t, Decl(index.js, 4, 20))
+>p : Symbol(p, Decl(index.js, 4, 16))
+    }
+}

tests/baselines/reference/jsDeclarationsExportAssignedClassExpressionAnonymous.types

@@ -0,0 +1,24 @@
+=== tests/cases/conformance/jsdoc/declarations/index.js ===
+module.exports = class {
+>module.exports = class {    /**     * @param {number} p     */    constructor(p) {        this.t = 12 + p;    }} : typeof import("tests/cases/conformance/jsdoc/declarations/index")
+>module.exports : typeof import("tests/cases/conformance/jsdoc/declarations/index")
+>module : { "tests/cases/conformance/jsdoc/declarations/index": typeof import("tests/cases/conformance/jsdoc/declarations/index"); }
+>exports : typeof import("tests/cases/conformance/jsdoc/declarations/index")
+>class {    /**     * @param {number} p     */    constructor(p) {        this.t = 12 + p;    }} : typeof import("tests/cases/conformance/jsdoc/declarations/index")
+
+    /**
+     * @param {number} p
+     */
+    constructor(p) {
+>p : number
+
+        this.t = 12 + p;
+>this.t = 12 + p : number
+>this.t : number
+>this : this
+>t : number
+>12 + p : number
+>12 : 12
+>p : number
+    }
+}

tests/baselines/reference/jsDeclarationsExportAssignedClassExpressionAnonymousWithSub.js

@@ -0,0 +1,49 @@
+//// [index.js]
+module.exports = class {
+    /**
+     * @param {number} p
+     */
+    constructor(p) {
+        this.t = 12 + p;
+    }
+}
+module.exports.Sub = class {
+    constructor() {
+        this.instance = new module.exports(10);
+    }
+}
+
+
+//// [index.js]
+module.exports = /** @class */ (function () {
+    /**
+     * @param {number} p
+     */
+    function exports(p) {
+        this.t = 12 + p;
+    }
+    return exports;
+}());
+module.exports.Sub = /** @class */ (function () {
+    function Sub() {
+        this.instance = new module.exports(10);
+    }
+    return Sub;
+}());
+
+
+//// [index.d.ts]
+export = exports;
+declare class exports {
+    /**
+     * @param {number} p
+     */
+    constructor(p: number);
+    t: number;
+}
+declare namespace exports {
+    export { Sub };
+}
+declare class Sub {
+    instance: import(".");
+}

tests/baselines/reference/jsDeclarationsExportAssignedClassExpressionAnonymousWithSub.symbols

@@ -0,0 +1,37 @@
+=== tests/cases/conformance/jsdoc/declarations/index.js ===
+module.exports = class {
+>module.exports : Symbol("tests/cases/conformance/jsdoc/declarations/index", Decl(index.js, 0, 0))
+>module : Symbol(export=, Decl(index.js, 0, 0))
+>exports : Symbol(export=, Decl(index.js, 0, 0))
+
+    /**
+     * @param {number} p
+     */
+    constructor(p) {
+>p : Symbol(p, Decl(index.js, 4, 16))
+
+        this.t = 12 + p;
+>this.t : Symbol(exports.t, Decl(index.js, 4, 20))
+>this : Symbol(exports, Decl(index.js, 0, 16))
+>t : Symbol(exports.t, Decl(index.js, 4, 20))
+>p : Symbol(p, Decl(index.js, 4, 16))
+    }
+}
+module.exports.Sub = class {
+>module.exports.Sub : Symbol(Sub)
+>module.exports : Symbol(Sub, Decl(index.js, 7, 1))
+>module : Symbol(module, Decl(index.js, 0, 0), Decl(index.js, 10, 27))
+>exports : Symbol("tests/cases/conformance/jsdoc/declarations/index", Decl(index.js, 0, 0))
+>Sub : Symbol(Sub, Decl(index.js, 7, 1))
+
+    constructor() {
+        this.instance = new module.exports(10);
+>this.instance : Symbol(Sub.instance, Decl(index.js, 9, 19))
+>this : Symbol(Sub, Decl(index.js, 8, 20))
+>instance : Symbol(Sub.instance, Decl(index.js, 9, 19))
+>module.exports : Symbol("tests/cases/conformance/jsdoc/declarations/index", Decl(index.js, 0, 0))
+>module : Symbol(module, Decl(index.js, 0, 0), Decl(index.js, 10, 27))
+>exports : Symbol("tests/cases/conformance/jsdoc/declarations/index", Decl(index.js, 0, 0))
+    }
+}
+

tests/baselines/reference/jsDeclarationsExportAssignedClassExpressionAnonymousWithSub.types

@@ -0,0 +1,47 @@
+=== tests/cases/conformance/jsdoc/declarations/index.js ===
+module.exports = class {
+>module.exports = class {    /**     * @param {number} p     */    constructor(p) {        this.t = 12 + p;    }} : typeof import("tests/cases/conformance/jsdoc/declarations/index")
+>module.exports : typeof import("tests/cases/conformance/jsdoc/declarations/index")
+>module : { "tests/cases/conformance/jsdoc/declarations/index": typeof import("tests/cases/conformance/jsdoc/declarations/index"); }
+>exports : typeof import("tests/cases/conformance/jsdoc/declarations/index")
+>class {    /**     * @param {number} p     */    constructor(p) {        this.t = 12 + p;    }} : typeof import("tests/cases/conformance/jsdoc/declarations/index")
+
+    /**
+     * @param {number} p
+     */
+    constructor(p) {
+>p : number
+
+        this.t = 12 + p;
+>this.t = 12 + p : number
+>this.t : number
+>this : this
+>t : number
+>12 + p : number
+>12 : 12
+>p : number
+    }
+}
+module.exports.Sub = class {
+>module.exports.Sub = class {    constructor() {        this.instance = new module.exports(10);    }} : typeof Sub
+>module.exports.Sub : typeof Sub
+>module.exports : typeof import("tests/cases/conformance/jsdoc/declarations/index")
+>module : { "tests/cases/conformance/jsdoc/declarations/index": typeof import("tests/cases/conformance/jsdoc/declarations/index"); }
+>exports : typeof import("tests/cases/conformance/jsdoc/declarations/index")
+>Sub : typeof Sub
+>class {    constructor() {        this.instance = new module.exports(10);    }} : typeof Sub
+
+    constructor() {
+        this.instance = new module.exports(10);
+>this.instance = new module.exports(10) : import("tests/cases/conformance/jsdoc/declarations/index")
+>this.instance : import("tests/cases/conformance/jsdoc/declarations/index")
+>this : this
+>instance : import("tests/cases/conformance/jsdoc/declarations/index")
+>new module.exports(10) : import("tests/cases/conformance/jsdoc/declarations/index")
+>module.exports : typeof import("tests/cases/conformance/jsdoc/declarations/index")
+>module : { "tests/cases/conformance/jsdoc/declarations/index": typeof import("tests/cases/conformance/jsdoc/declarations/index"); }
+>exports : typeof import("tests/cases/conformance/jsdoc/declarations/index")
+>10 : 10
+    }
+}
+

tests/baselines/reference/jsDeclarationsExportAssignedClassExpressionShadowing.js

@@ -0,0 +1,86 @@
+//// [index.js]
+// TODO: Fixup
+class A {
+    member = new Q();
+}
+class Q {
+    x = 42;
+}
+module.exports = class Q {
+    constructor() {
+        this.x = new A();
+    }
+}
+module.exports.Another = Q;
+
+
+//// [index.js]
+// TODO: Fixup
+var A = /** @class */ (function () {
+    function A() {
+        this.member = new Q();
+    }
+    return A;
+}());
+var Q = /** @class */ (function () {
+    function Q() {
+        this.x = 42;
+    }
+    return Q;
+}());
+module.exports = /** @class */ (function () {
+    function Q() {
+        this.x = new A();
+    }
+    return Q;
+}());
+module.exports.Another = Q;
+
+
+//// [index.d.ts]
+export = Q;
+declare class Q {
+    x: A;
+}
+declare namespace Q {
+    export { Another };
+}
+declare class A {
+    member: Q;
+}
+declare var Another: typeof Q;
+declare class Q {
+    x: number;
+}
+
+
+//// [DtsFileErrors]
+
+
+out/index.d.ts(2,15): error TS2300: Duplicate identifier 'Q'.
+out/index.d.ts(5,19): error TS2300: Duplicate identifier 'Q'.
+out/index.d.ts(12,15): error TS2300: Duplicate identifier 'Q'.
+
+
+==== ./out/index.d.ts (3 errors) ====
+    export = Q;
+    declare class Q {
+                  ~
+!!! error TS2300: Duplicate identifier 'Q'.
+        x: A;
+    }
+    declare namespace Q {
+                      ~
+!!! error TS2300: Duplicate identifier 'Q'.
+        export { Another };
+    }
+    declare class A {
+        member: Q;
+    }
+    declare var Another: typeof Q;
+    declare class Q {
+                  ~
+!!! error TS2300: Duplicate identifier 'Q'.
+        x: number;
+    }
+    

tests/baselines/reference/jsDeclarationsExportAssignedClassExpressionShadowing.symbols

@@ -0,0 +1,37 @@
+=== tests/cases/conformance/jsdoc/declarations/index.js ===
+// TODO: Fixup
+class A {
+>A : Symbol(A, Decl(index.js, 0, 0))
+
+    member = new Q();
+>member : Symbol(A.member, Decl(index.js, 1, 9))
+>Q : Symbol(Q, Decl(index.js, 3, 1))
+}
+class Q {
+>Q : Symbol(Q, Decl(index.js, 3, 1))
+
+    x = 42;
+>x : Symbol(Q.x, Decl(index.js, 4, 9))
+}
+module.exports = class Q {
+>module.exports : Symbol("tests/cases/conformance/jsdoc/declarations/index", Decl(index.js, 0, 0))
+>module : Symbol(export=, Decl(index.js, 6, 1))
+>exports : Symbol(export=, Decl(index.js, 6, 1))
+>Q : Symbol(Q, Decl(index.js, 7, 16))
+
+    constructor() {
+        this.x = new A();
+>this.x : Symbol(Q.x, Decl(index.js, 8, 19))
+>this : Symbol(Q, Decl(index.js, 7, 16))
+>x : Symbol(Q.x, Decl(index.js, 8, 19))
+>A : Symbol(A, Decl(index.js, 0, 0))
+    }
+}
+module.exports.Another = Q;
+>module.exports.Another : Symbol(Another)
+>module.exports : Symbol(Another, Decl(index.js, 11, 1))
+>module : Symbol(module, Decl(index.js, 6, 1))
+>exports : Symbol("tests/cases/conformance/jsdoc/declarations/index", Decl(index.js, 0, 0))
+>Another : Symbol(Another, Decl(index.js, 11, 1))
+>Q : Symbol(Q, Decl(index.js, 3, 1))
+

tests/baselines/reference/jsDeclarationsExportAssignedClassExpressionShadowing.types

@@ -0,0 +1,44 @@
+=== tests/cases/conformance/jsdoc/declarations/index.js ===
+// TODO: Fixup
+class A {
+>A : A
+
+    member = new Q();
+>member : Q
+>new Q() : Q
+>Q : typeof Q
+}
+class Q {
+>Q : Q
+
+    x = 42;
+>x : number
+>42 : 42
+}
+module.exports = class Q {
+>module.exports = class Q {    constructor() {        this.x = new A();    }} : typeof import("tests/cases/conformance/jsdoc/declarations/index")
+>module.exports : typeof import("tests/cases/conformance/jsdoc/declarations/index")
+>module : { "tests/cases/conformance/jsdoc/declarations/index": typeof import("tests/cases/conformance/jsdoc/declarations/index"); }
+>exports : typeof import("tests/cases/conformance/jsdoc/declarations/index")
+>class Q {    constructor() {        this.x = new A();    }} : typeof import("tests/cases/conformance/jsdoc/declarations/index")
+>Q : typeof import("tests/cases/conformance/jsdoc/declarations/index")
+
+    constructor() {
+        this.x = new A();
+>this.x = new A() : A
+>this.x : A
+>this : this
+>x : A
+>new A() : A
+>A : typeof A
+    }
+}
+module.exports.Another = Q;
+>module.exports.Another = Q : typeof Q
+>module.exports.Another : typeof Q
+>module.exports : typeof import("tests/cases/conformance/jsdoc/declarations/index")
+>module : { "tests/cases/conformance/jsdoc/declarations/index": typeof import("tests/cases/conformance/jsdoc/declarations/index"); }
+>exports : typeof import("tests/cases/conformance/jsdoc/declarations/index")
+>Another : typeof Q
+>Q : typeof Q
+

tests/baselines/reference/jsDeclarationsExportAssignedVisibility.js

@@ -0,0 +1,47 @@
+//// [tests/cases/conformance/jsdoc/declarations/jsDeclarationsExportAssignedVisibility.ts] ////
+
+//// [obj.js]
+module.exports = class Obj {
+    constructor() {
+        this.x = 12;
+    }
+}
+//// [index.js]
+const Obj = require("./obj");
+
+class Container {
+    constructor() {
+        this.usage = new Obj();
+    }
+}
+
+module.exports = Container;
+
+//// [obj.js]
+module.exports = /** @class */ (function () {
+    function Obj() {
+        this.x = 12;
+    }
+    return Obj;
+}());
+//// [index.js]
+var Obj = require("./obj");
+var Container = /** @class */ (function () {
+    function Container() {
+        this.usage = new Obj();
+    }
+    return Container;
+}());
+module.exports = Container;
+
+
+//// [obj.d.ts]
+export = Obj;
+declare class Obj {
+    x: number;
+}
+//// [index.d.ts]
+export = Container;
+declare class Container {
+    usage: import("./obj");
+}

tests/baselines/reference/jsDeclarationsExportAssignedVisibility.symbols

@@ -0,0 +1,38 @@
+=== tests/cases/conformance/jsdoc/declarations/index.js ===
+const Obj = require("./obj");
+>Obj : Symbol(Obj, Decl(index.js, 0, 5))
+>require : Symbol(require)
+>"./obj" : Symbol("tests/cases/conformance/jsdoc/declarations/obj", Decl(obj.js, 0, 0))
+
+class Container {
+>Container : Symbol(Container, Decl(index.js, 0, 29))
+
+    constructor() {
+        this.usage = new Obj();
+>this.usage : Symbol(Container.usage, Decl(index.js, 3, 19))
+>this : Symbol(Container, Decl(index.js, 0, 29))
+>usage : Symbol(Container.usage, Decl(index.js, 3, 19))
+>Obj : Symbol(Obj, Decl(index.js, 0, 5))
+    }
+}
+
+module.exports = Container;
+>module.exports : Symbol("tests/cases/conformance/jsdoc/declarations/index", Decl(index.js, 0, 0))
+>module : Symbol(export=, Decl(index.js, 6, 1))
+>exports : Symbol(export=, Decl(index.js, 6, 1))
+>Container : Symbol(Container, Decl(index.js, 0, 29))
+
+=== tests/cases/conformance/jsdoc/declarations/obj.js ===
+module.exports = class Obj {
+>module.exports : Symbol("tests/cases/conformance/jsdoc/declarations/obj", Decl(obj.js, 0, 0))
+>module : Symbol(export=, Decl(obj.js, 0, 0))
+>exports : Symbol(export=, Decl(obj.js, 0, 0))
+>Obj : Symbol(Obj, Decl(obj.js, 0, 16))
+
+    constructor() {
+        this.x = 12;
+>this.x : Symbol(Obj.x, Decl(obj.js, 1, 19))
+>this : Symbol(Obj, Decl(obj.js, 0, 16))
+>x : Symbol(Obj.x, Decl(obj.js, 1, 19))
+    }
+}

tests/baselines/reference/jsDeclarationsExportAssignedVisibility.types

@@ -0,0 +1,46 @@
+=== tests/cases/conformance/jsdoc/declarations/index.js ===
+const Obj = require("./obj");
+>Obj : typeof import("tests/cases/conformance/jsdoc/declarations/obj")
+>require("./obj") : typeof import("tests/cases/conformance/jsdoc/declarations/obj")
+>require : any
+>"./obj" : "./obj"
+
+class Container {
+>Container : Container
+
+    constructor() {
+        this.usage = new Obj();
+>this.usage = new Obj() : import("tests/cases/conformance/jsdoc/declarations/obj")
+>this.usage : import("tests/cases/conformance/jsdoc/declarations/obj")
+>this : this
+>usage : import("tests/cases/conformance/jsdoc/declarations/obj")
+>new Obj() : import("tests/cases/conformance/jsdoc/declarations/obj")
+>Obj : typeof import("tests/cases/conformance/jsdoc/declarations/obj")
+    }
+}
+
+module.exports = Container;
+>module.exports = Container : typeof Container
+>module.exports : typeof Container
+>module : { "tests/cases/conformance/jsdoc/declarations/index": typeof Container; }
+>exports : typeof Container
+>Container : typeof Container
+
+=== tests/cases/conformance/jsdoc/declarations/obj.js ===
+module.exports = class Obj {
+>module.exports = class Obj {    constructor() {        this.x = 12;    }} : typeof import("tests/cases/conformance/jsdoc/declarations/obj")
+>module.exports : typeof import("tests/cases/conformance/jsdoc/declarations/obj")
+>module : { "tests/cases/conformance/jsdoc/declarations/obj": typeof import("tests/cases/conformance/jsdoc/declarations/obj"); }
+>exports : typeof import("tests/cases/conformance/jsdoc/declarations/obj")
+>class Obj {    constructor() {        this.x = 12;    }} : typeof import("tests/cases/conformance/jsdoc/declarations/obj")
+>Obj : typeof import("tests/cases/conformance/jsdoc/declarations/obj")
+
+    constructor() {
+        this.x = 12;
+>this.x = 12 : 12
+>this.x : number
+>this : this
+>x : number
+>12 : 12
+    }
+}

tests/baselines/reference/jsDeclarationsExportAssignmentExpressionPlusSecondary.js

@@ -0,0 +1,40 @@
+//// [index.js]
+const Strings = {
+    a: "A",
+    b: "B"
+};
+module.exports = {
+    thing: "ok",
+    also: "ok",
+    desc: {
+        item: "ok"
+    }
+};
+module.exports.Strings = Strings;
+
+
+//// [index.js]
+var Strings = {
+    a: "A",
+    b: "B"
+};
+module.exports = {
+    thing: "ok",
+    also: "ok",
+    desc: {
+        item: "ok"
+    }
+};
+module.exports.Strings = Strings;
+
+
+//// [index.d.ts]
+export namespace Strings {
+    export const a: string;
+    export const b: string;
+}
+export declare const thing: string;
+export declare const also: string;
+export declare namespace desc {
+    export const item: string;
+}

tests/baselines/reference/jsDeclarationsExportAssignmentExpressionPlusSecondary.symbols

@@ -0,0 +1,37 @@
+=== tests/cases/conformance/jsdoc/declarations/index.js ===
+const Strings = {
+>Strings : Symbol(Strings, Decl(index.js, 0, 5))
+
+    a: "A",
+>a : Symbol(a, Decl(index.js, 0, 17))
+
+    b: "B"
+>b : Symbol(b, Decl(index.js, 1, 11))
+
+};
+module.exports = {
+>module.exports : Symbol("tests/cases/conformance/jsdoc/declarations/index", Decl(index.js, 0, 0))
+>module : Symbol(export=, Decl(index.js, 3, 2))
+>exports : Symbol(export=, Decl(index.js, 3, 2))
+
+    thing: "ok",
+>thing : Symbol(thing, Decl(index.js, 4, 18))
+
+    also: "ok",
+>also : Symbol(also, Decl(index.js, 5, 16))
+
+    desc: {
+>desc : Symbol(desc, Decl(index.js, 6, 15))
+
+        item: "ok"
+>item : Symbol(item, Decl(index.js, 7, 11))
+    }
+};
+module.exports.Strings = Strings;
+>module.exports.Strings : Symbol(Strings, Decl(index.js, 10, 2))
+>module.exports : Symbol(Strings, Decl(index.js, 10, 2))
+>module : Symbol(module, Decl(index.js, 3, 2))
+>exports : Symbol("tests/cases/conformance/jsdoc/declarations/index", Decl(index.js, 0, 0))
+>Strings : Symbol(Strings, Decl(index.js, 10, 2))
+>Strings : Symbol(Strings, Decl(index.js, 0, 5))
+

tests/baselines/reference/jsDeclarationsExportAssignmentExpressionPlusSecondary.types

@@ -0,0 +1,47 @@
+=== tests/cases/conformance/jsdoc/declarations/index.js ===
+const Strings = {
+>Strings : { a: string; b: string; }
+>{    a: "A",    b: "B"} : { a: string; b: string; }
+
+    a: "A",
+>a : string
+>"A" : "A"
+
+    b: "B"
+>b : string
+>"B" : "B"
+
+};
+module.exports = {
+>module.exports = {    thing: "ok",    also: "ok",    desc: {        item: "ok"    }} : { thing: string; also: string; desc: { item: string; }; Strings: { a: string; b: string; }; }
+>module.exports : { thing: string; also: string; desc: { item: string; }; Strings: { a: string; b: string; }; }
+>module : { "tests/cases/conformance/jsdoc/declarations/index": { thing: string; also: string; desc: { item: string; }; Strings: { a: string; b: string; }; }; }
+>exports : { thing: string; also: string; desc: { item: string; }; Strings: { a: string; b: string; }; }
+>{    thing: "ok",    also: "ok",    desc: {        item: "ok"    }} : { thing: string; also: string; desc: { item: string; }; }
+
+    thing: "ok",
+>thing : string
+>"ok" : "ok"
+
+    also: "ok",
+>also : string
+>"ok" : "ok"
+
+    desc: {
+>desc : { item: string; }
+>{        item: "ok"    } : { item: string; }
+
+        item: "ok"
+>item : string
+>"ok" : "ok"
+    }
+};
+module.exports.Strings = Strings;
+>module.exports.Strings = Strings : { a: string; b: string; }
+>module.exports.Strings : { a: string; b: string; }
+>module.exports : { thing: string; also: string; desc: { item: string; }; Strings: { a: string; b: string; }; }
+>module : { "tests/cases/conformance/jsdoc/declarations/index": { thing: string; also: string; desc: { item: string; }; Strings: { a: string; b: string; }; }; }
+>exports : { thing: string; also: string; desc: { item: string; }; Strings: { a: string; b: string; }; }
+>Strings : { a: string; b: string; }
+>Strings : { a: string; b: string; }
+

tests/baselines/reference/jsDeclarationsExportAssignmentWithKeywordName.js

@@ -0,0 +1,30 @@
+//// [index.js]
+var x = 12;
+module.exports = {
+    extends: 'base',
+    more: {
+        others: ['strs']
+    },
+    x
+};
+
+//// [index.js]
+var x = 12;
+module.exports = {
+    extends: 'base',
+    more: {
+        others: ['strs']
+    },
+    x: x
+};
+
+
+//// [index.d.ts]
+declare const _exports: {
+    extends: string;
+    more: {
+        others: string[];
+    };
+    x: number;
+};
+export = _exports;

tests/baselines/reference/jsDeclarationsExportAssignmentWithKeywordName.symbols

@@ -0,0 +1,23 @@
+=== tests/cases/conformance/jsdoc/declarations/index.js ===
+var x = 12;
+>x : Symbol(x, Decl(index.js, 0, 3))
+
+module.exports = {
+>module.exports : Symbol("tests/cases/conformance/jsdoc/declarations/index", Decl(index.js, 0, 0))
+>module : Symbol(export=, Decl(index.js, 0, 11))
+>exports : Symbol(export=, Decl(index.js, 0, 11))
+
+    extends: 'base',
+>extends : Symbol(extends, Decl(index.js, 1, 18))
+
+    more: {
+>more : Symbol(more, Decl(index.js, 2, 20))
+
+        others: ['strs']
+>others : Symbol(others, Decl(index.js, 3, 11))
+
+    },
+    x
+>x : Symbol(x, Decl(index.js, 5, 6))
+
+};

tests/baselines/reference/jsDeclarationsExportAssignmentWithKeywordName.types

@@ -0,0 +1,30 @@
+=== tests/cases/conformance/jsdoc/declarations/index.js ===
+var x = 12;
+>x : number
+>12 : 12
+
+module.exports = {
+>module.exports = {    extends: 'base',    more: {        others: ['strs']    },    x} : { extends: string; more: { others: string[]; }; x: number; }
+>module.exports : { extends: string; more: { others: string[]; }; x: number; }
+>module : { "tests/cases/conformance/jsdoc/declarations/index": { extends: string; more: { others: string[]; }; x: number; }; }
+>exports : { extends: string; more: { others: string[]; }; x: number; }
+>{    extends: 'base',    more: {        others: ['strs']    },    x} : { extends: string; more: { others: string[]; }; x: number; }
+
+    extends: 'base',
+>extends : string
+>'base' : "base"
+
+    more: {
+>more : { others: string[]; }
+>{        others: ['strs']    } : { others: string[]; }
+
+        others: ['strs']
+>others : string[]
+>['strs'] : string[]
+>'strs' : "strs"
+
+    },
+    x
+>x : number
+
+};

tests/baselines/reference/jsDeclarationsExportDefinePropertyEmit.js

@@ -0,0 +1,165 @@
+//// [index.js]
+Object.defineProperty(module.exports, "a", { value: function a() {} });
+
+Object.defineProperty(module.exports, "b", { value: function b() {} });
+Object.defineProperty(module.exports.b, "cat", { value: "cat" });
+
+/**
+ * @param {number} a
+ * @param {number} b
+ * @return {string} 
+ */
+function d(a, b) { return /** @type {*} */(null); }
+Object.defineProperty(module.exports, "d", { value: d });
+
+
+/**
+ * @template T,U
+ * @param {T} a
+ * @param {U} b
+ * @return {T & U} 
+ */
+function e(a, b) { return /** @type {*} */(null); }
+Object.defineProperty(module.exports, "e", { value: e });
+
+/**
+ * @template T
+ * @param {T} a
+ */
+function f(a) {
+    return a;
+}
+Object.defineProperty(module.exports, "f", { value: f });
+Object.defineProperty(module.exports.f, "self", { value: module.exports.f });
+
+/**
+ * @param {{x: string}} a
+ * @param {{y: typeof module.exports.b}} b
+ */
+function g(a, b) {
+    return a.x && b.y();
+}
+Object.defineProperty(module.exports, "g", { value: g });
+
+
+/**
+ * @param {{x: string}} a
+ * @param {{y: typeof module.exports.b}} b
+ */
+function hh(a, b) {
+    return a.x && b.y();
+}
+Object.defineProperty(module.exports, "h", { value: hh });
+
+Object.defineProperty(module.exports, "i", { value: function i(){} });
+Object.defineProperty(module.exports, "ii", { value: module.exports.i });
+
+// note that this last one doesn't make much sense in cjs, since exports aren't hoisted bindings
+Object.defineProperty(module.exports, "jj", { value: module.exports.j });
+Object.defineProperty(module.exports, "j", { value: function j() {} });
+
+
+//// [index.js]
+Object.defineProperty(module.exports, "a", { value: function a() { } });
+Object.defineProperty(module.exports, "b", { value: function b() { } });
+Object.defineProperty(module.exports.b, "cat", { value: "cat" });
+/**
+ * @param {number} a
+ * @param {number} b
+ * @return {string}
+ */
+function d(a, b) { return /** @type {*} */ (null); }
+Object.defineProperty(module.exports, "d", { value: d });
+/**
+ * @template T,U
+ * @param {T} a
+ * @param {U} b
+ * @return {T & U}
+ */
+function e(a, b) { return /** @type {*} */ (null); }
+Object.defineProperty(module.exports, "e", { value: e });
+/**
+ * @template T
+ * @param {T} a
+ */
+function f(a) {
+    return a;
+}
+Object.defineProperty(module.exports, "f", { value: f });
+Object.defineProperty(module.exports.f, "self", { value: module.exports.f });
+/**
+ * @param {{x: string}} a
+ * @param {{y: typeof module.exports.b}} b
+ */
+function g(a, b) {
+    return a.x && b.y();
+}
+Object.defineProperty(module.exports, "g", { value: g });
+/**
+ * @param {{x: string}} a
+ * @param {{y: typeof module.exports.b}} b
+ */
+function hh(a, b) {
+    return a.x && b.y();
+}
+Object.defineProperty(module.exports, "h", { value: hh });
+Object.defineProperty(module.exports, "i", { value: function i() { } });
+Object.defineProperty(module.exports, "ii", { value: module.exports.i });
+// note that this last one doesn't make much sense in cjs, since exports aren't hoisted bindings
+Object.defineProperty(module.exports, "jj", { value: module.exports.j });
+Object.defineProperty(module.exports, "j", { value: function j() { } });
+
+
+//// [index.d.ts]
+export function a(): void;
+export function b(): void;
+export namespace b {
+    export const cat: string;
+}
+/**
+ * @param {number} a
+ * @param {number} b
+ * @return {string}
+ */
+export function d(a: number, b: number): string;
+/**
+ * @template T,U
+ * @param {T} a
+ * @param {U} b
+ * @return {T & U}
+ */
+export function e<T, U>(a: T, b: U): T & U;
+/**
+ * @template T
+ * @param {T} a
+ */
+export function f<T>(a: T): T;
+export namespace f {
+    /**
+     * @template T
+     * @param {T} a
+     */
+    export function self<T>(a: T): T;
+}
+/**
+ * @param {{x: string}} a
+ * @param {{y: typeof module.exports.b}} b
+ */
+export function g(a: {
+    x: string;
+}, b: {
+    y: () => void;
+}): void;
+/**
+ * @param {{x: string}} a
+ * @param {{y: typeof module.exports.b}} b
+ */
+export function h(a: {
+    x: string;
+}, b: {
+    y: () => void;
+}): void;
+export function i(): void;
+export function ii(): void;
+export function jj(): void;
+export function j(): void;

tests/baselines/reference/jsDeclarationsExportDefinePropertyEmit.symbols

@@ -0,0 +1,228 @@
+=== tests/cases/conformance/jsdoc/declarations/index.js ===
+Object.defineProperty(module.exports, "a", { value: function a() {} });
+>Object.defineProperty : Symbol(ObjectConstructor.defineProperty, Decl(lib.es5.d.ts, --, --))
+>Object : Symbol(Object, Decl(lib.es5.d.ts, --, --), Decl(lib.es5.d.ts, --, --))
+>defineProperty : Symbol(ObjectConstructor.defineProperty, Decl(lib.es5.d.ts, --, --))
+>module.exports : Symbol("tests/cases/conformance/jsdoc/declarations/index", Decl(index.js, 0, 0))
+>module : Symbol(module, Decl(index.js, 0, 22), Decl(index.js, 31, 56), Decl(index.js, 53, 52), Decl(index.js, 56, 52))
+>exports : Symbol("tests/cases/conformance/jsdoc/declarations/index", Decl(index.js, 0, 0))
+>"a" : Symbol(a, Decl(index.js, 0, 0))
+>value : Symbol(value, Decl(index.js, 0, 44))
+>a : Symbol(a, Decl(index.js, 0, 51))
+
+Object.defineProperty(module.exports, "b", { value: function b() {} });
+>Object.defineProperty : Symbol(ObjectConstructor.defineProperty, Decl(lib.es5.d.ts, --, --))
+>Object : Symbol(Object, Decl(lib.es5.d.ts, --, --), Decl(lib.es5.d.ts, --, --))
+>defineProperty : Symbol(ObjectConstructor.defineProperty, Decl(lib.es5.d.ts, --, --))
+>module.exports : Symbol("tests/cases/conformance/jsdoc/declarations/index", Decl(index.js, 0, 0))
+>module : Symbol(module, Decl(index.js, 0, 22), Decl(index.js, 31, 56), Decl(index.js, 53, 52), Decl(index.js, 56, 52))
+>exports : Symbol("tests/cases/conformance/jsdoc/declarations/index", Decl(index.js, 0, 0))
+>"b" : Symbol(b, Decl(index.js, 0, 71), Decl(index.js, 3, 37))
+>value : Symbol(value, Decl(index.js, 2, 44))
+>b : Symbol(b, Decl(index.js, 2, 51))
+
+Object.defineProperty(module.exports.b, "cat", { value: "cat" });
+>Object.defineProperty : Symbol(ObjectConstructor.defineProperty, Decl(lib.es5.d.ts, --, --))
+>Object : Symbol(Object, Decl(lib.es5.d.ts, --, --), Decl(lib.es5.d.ts, --, --))
+>defineProperty : Symbol(ObjectConstructor.defineProperty, Decl(lib.es5.d.ts, --, --))
+>module.exports.b : Symbol(b, Decl(index.js, 0, 71), Decl(index.js, 3, 37))
+>module.exports : Symbol("tests/cases/conformance/jsdoc/declarations/index", Decl(index.js, 0, 0))
+>module : Symbol(module, Decl(index.js, 0, 22), Decl(index.js, 31, 56), Decl(index.js, 53, 52), Decl(index.js, 56, 52))
+>exports : Symbol("tests/cases/conformance/jsdoc/declarations/index", Decl(index.js, 0, 0))
+>b : Symbol(b, Decl(index.js, 0, 71), Decl(index.js, 3, 37))
+>"cat" : Symbol(b.cat, Decl(index.js, 2, 71))
+>value : Symbol(value, Decl(index.js, 3, 48))
+
+/**
+ * @param {number} a
+ * @param {number} b
+ * @return {string} 
+ */
+function d(a, b) { return /** @type {*} */(null); }
+>d : Symbol(d, Decl(index.js, 3, 65))
+>a : Symbol(a, Decl(index.js, 10, 11))
+>b : Symbol(b, Decl(index.js, 10, 13))
+
+Object.defineProperty(module.exports, "d", { value: d });
+>Object.defineProperty : Symbol(ObjectConstructor.defineProperty, Decl(lib.es5.d.ts, --, --))
+>Object : Symbol(Object, Decl(lib.es5.d.ts, --, --), Decl(lib.es5.d.ts, --, --))
+>defineProperty : Symbol(ObjectConstructor.defineProperty, Decl(lib.es5.d.ts, --, --))
+>module.exports : Symbol("tests/cases/conformance/jsdoc/declarations/index", Decl(index.js, 0, 0))
+>module : Symbol(module, Decl(index.js, 0, 22), Decl(index.js, 31, 56), Decl(index.js, 53, 52), Decl(index.js, 56, 52))
+>exports : Symbol("tests/cases/conformance/jsdoc/declarations/index", Decl(index.js, 0, 0))
+>"d" : Symbol(d, Decl(index.js, 10, 51))
+>value : Symbol(value, Decl(index.js, 11, 44))
+>d : Symbol(d, Decl(index.js, 3, 65))
+
+
+/**
+ * @template T,U
+ * @param {T} a
+ * @param {U} b
+ * @return {T & U} 
+ */
+function e(a, b) { return /** @type {*} */(null); }
+>e : Symbol(e, Decl(index.js, 11, 57))
+>a : Symbol(a, Decl(index.js, 20, 11))
+>b : Symbol(b, Decl(index.js, 20, 13))
+
+Object.defineProperty(module.exports, "e", { value: e });
+>Object.defineProperty : Symbol(ObjectConstructor.defineProperty, Decl(lib.es5.d.ts, --, --))
+>Object : Symbol(Object, Decl(lib.es5.d.ts, --, --), Decl(lib.es5.d.ts, --, --))
+>defineProperty : Symbol(ObjectConstructor.defineProperty, Decl(lib.es5.d.ts, --, --))
+>module.exports : Symbol("tests/cases/conformance/jsdoc/declarations/index", Decl(index.js, 0, 0))
+>module : Symbol(module, Decl(index.js, 0, 22), Decl(index.js, 31, 56), Decl(index.js, 53, 52), Decl(index.js, 56, 52))
+>exports : Symbol("tests/cases/conformance/jsdoc/declarations/index", Decl(index.js, 0, 0))
+>"e" : Symbol(e, Decl(index.js, 20, 51))
+>value : Symbol(value, Decl(index.js, 21, 44))
+>e : Symbol(e, Decl(index.js, 11, 57))
+
+/**
+ * @template T
+ * @param {T} a
+ */
+function f(a) {
+>f : Symbol(f, Decl(index.js, 21, 57))
+>a : Symbol(a, Decl(index.js, 27, 11))
+
+    return a;
+>a : Symbol(a, Decl(index.js, 27, 11))
+}
+Object.defineProperty(module.exports, "f", { value: f });
+>Object.defineProperty : Symbol(ObjectConstructor.defineProperty, Decl(lib.es5.d.ts, --, --))
+>Object : Symbol(Object, Decl(lib.es5.d.ts, --, --), Decl(lib.es5.d.ts, --, --))
+>defineProperty : Symbol(ObjectConstructor.defineProperty, Decl(lib.es5.d.ts, --, --))
+>module.exports : Symbol("tests/cases/conformance/jsdoc/declarations/index", Decl(index.js, 0, 0))
+>module : Symbol(module, Decl(index.js, 0, 22), Decl(index.js, 31, 56), Decl(index.js, 53, 52), Decl(index.js, 56, 52))
+>exports : Symbol("tests/cases/conformance/jsdoc/declarations/index", Decl(index.js, 0, 0))
+>"f" : Symbol(f, Decl(index.js, 29, 1), Decl(index.js, 31, 37))
+>value : Symbol(value, Decl(index.js, 30, 44))
+>f : Symbol(f, Decl(index.js, 21, 57))
+
+Object.defineProperty(module.exports.f, "self", { value: module.exports.f });
+>Object.defineProperty : Symbol(ObjectConstructor.defineProperty, Decl(lib.es5.d.ts, --, --))
+>Object : Symbol(Object, Decl(lib.es5.d.ts, --, --), Decl(lib.es5.d.ts, --, --))
+>defineProperty : Symbol(ObjectConstructor.defineProperty, Decl(lib.es5.d.ts, --, --))
+>module.exports.f : Symbol(f, Decl(index.js, 29, 1), Decl(index.js, 31, 37))
+>module.exports : Symbol("tests/cases/conformance/jsdoc/declarations/index", Decl(index.js, 0, 0))
+>module : Symbol(module, Decl(index.js, 0, 22), Decl(index.js, 31, 56), Decl(index.js, 53, 52), Decl(index.js, 56, 52))
+>exports : Symbol("tests/cases/conformance/jsdoc/declarations/index", Decl(index.js, 0, 0))
+>f : Symbol(f, Decl(index.js, 29, 1), Decl(index.js, 31, 37))
+>"self" : Symbol(f.self, Decl(index.js, 30, 57))
+>value : Symbol(value, Decl(index.js, 31, 49))
+>module.exports.f : Symbol(f, Decl(index.js, 29, 1), Decl(index.js, 31, 37))
+>module.exports : Symbol("tests/cases/conformance/jsdoc/declarations/index", Decl(index.js, 0, 0))
+>module : Symbol(module, Decl(index.js, 0, 22), Decl(index.js, 31, 56), Decl(index.js, 53, 52), Decl(index.js, 56, 52))
+>exports : Symbol("tests/cases/conformance/jsdoc/declarations/index", Decl(index.js, 0, 0))
+>f : Symbol(f, Decl(index.js, 29, 1), Decl(index.js, 31, 37))
+
+/**
+ * @param {{x: string}} a
+ * @param {{y: typeof module.exports.b}} b
+ */
+function g(a, b) {
+>g : Symbol(g, Decl(index.js, 31, 77))
+>a : Symbol(a, Decl(index.js, 37, 11))
+>b : Symbol(b, Decl(index.js, 37, 13))
+
+    return a.x && b.y();
+>a.x : Symbol(x, Decl(index.js, 34, 12))
+>a : Symbol(a, Decl(index.js, 37, 11))
+>x : Symbol(x, Decl(index.js, 34, 12))
+>b.y : Symbol(y, Decl(index.js, 35, 12))
+>b : Symbol(b, Decl(index.js, 37, 13))
+>y : Symbol(y, Decl(index.js, 35, 12))
+}
+Object.defineProperty(module.exports, "g", { value: g });
+>Object.defineProperty : Symbol(ObjectConstructor.defineProperty, Decl(lib.es5.d.ts, --, --))
+>Object : Symbol(Object, Decl(lib.es5.d.ts, --, --), Decl(lib.es5.d.ts, --, --))
+>defineProperty : Symbol(ObjectConstructor.defineProperty, Decl(lib.es5.d.ts, --, --))
+>module.exports : Symbol("tests/cases/conformance/jsdoc/declarations/index", Decl(index.js, 0, 0))
+>module : Symbol(module, Decl(index.js, 0, 22), Decl(index.js, 31, 56), Decl(index.js, 53, 52), Decl(index.js, 56, 52))
+>exports : Symbol("tests/cases/conformance/jsdoc/declarations/index", Decl(index.js, 0, 0))
+>"g" : Symbol(g, Decl(index.js, 39, 1))
+>value : Symbol(value, Decl(index.js, 40, 44))
+>g : Symbol(g, Decl(index.js, 31, 77))
+
+
+/**
+ * @param {{x: string}} a
+ * @param {{y: typeof module.exports.b}} b
+ */
+function hh(a, b) {
+>hh : Symbol(hh, Decl(index.js, 40, 57))
+>a : Symbol(a, Decl(index.js, 47, 12))
+>b : Symbol(b, Decl(index.js, 47, 14))
+
+    return a.x && b.y();
+>a.x : Symbol(x, Decl(index.js, 44, 12))
+>a : Symbol(a, Decl(index.js, 47, 12))
+>x : Symbol(x, Decl(index.js, 44, 12))
+>b.y : Symbol(y, Decl(index.js, 45, 12))
+>b : Symbol(b, Decl(index.js, 47, 14))
+>y : Symbol(y, Decl(index.js, 45, 12))
+}
+Object.defineProperty(module.exports, "h", { value: hh });
+>Object.defineProperty : Symbol(ObjectConstructor.defineProperty, Decl(lib.es5.d.ts, --, --))
+>Object : Symbol(Object, Decl(lib.es5.d.ts, --, --), Decl(lib.es5.d.ts, --, --))
+>defineProperty : Symbol(ObjectConstructor.defineProperty, Decl(lib.es5.d.ts, --, --))
+>module.exports : Symbol("tests/cases/conformance/jsdoc/declarations/index", Decl(index.js, 0, 0))
+>module : Symbol(module, Decl(index.js, 0, 22), Decl(index.js, 31, 56), Decl(index.js, 53, 52), Decl(index.js, 56, 52))
+>exports : Symbol("tests/cases/conformance/jsdoc/declarations/index", Decl(index.js, 0, 0))
+>"h" : Symbol(h, Decl(index.js, 49, 1))
+>value : Symbol(value, Decl(index.js, 50, 44))
+>hh : Symbol(hh, Decl(index.js, 40, 57))
+
+Object.defineProperty(module.exports, "i", { value: function i(){} });
+>Object.defineProperty : Symbol(ObjectConstructor.defineProperty, Decl(lib.es5.d.ts, --, --))
+>Object : Symbol(Object, Decl(lib.es5.d.ts, --, --), Decl(lib.es5.d.ts, --, --))
+>defineProperty : Symbol(ObjectConstructor.defineProperty, Decl(lib.es5.d.ts, --, --))
+>module.exports : Symbol("tests/cases/conformance/jsdoc/declarations/index", Decl(index.js, 0, 0))
+>module : Symbol(module, Decl(index.js, 0, 22), Decl(index.js, 31, 56), Decl(index.js, 53, 52), Decl(index.js, 56, 52))
+>exports : Symbol("tests/cases/conformance/jsdoc/declarations/index", Decl(index.js, 0, 0))
+>"i" : Symbol(i, Decl(index.js, 50, 58))
+>value : Symbol(value, Decl(index.js, 52, 44))
+>i : Symbol(i, Decl(index.js, 52, 51))
+
+Object.defineProperty(module.exports, "ii", { value: module.exports.i });
+>Object.defineProperty : Symbol(ObjectConstructor.defineProperty, Decl(lib.es5.d.ts, --, --))
+>Object : Symbol(Object, Decl(lib.es5.d.ts, --, --), Decl(lib.es5.d.ts, --, --))
+>defineProperty : Symbol(ObjectConstructor.defineProperty, Decl(lib.es5.d.ts, --, --))
+>module.exports : Symbol("tests/cases/conformance/jsdoc/declarations/index", Decl(index.js, 0, 0))
+>module : Symbol(module, Decl(index.js, 0, 22), Decl(index.js, 31, 56), Decl(index.js, 53, 52), Decl(index.js, 56, 52))
+>exports : Symbol("tests/cases/conformance/jsdoc/declarations/index", Decl(index.js, 0, 0))
+>"ii" : Symbol(ii, Decl(index.js, 52, 70))
+>value : Symbol(value, Decl(index.js, 53, 45))
+>module.exports.i : Symbol(i, Decl(index.js, 50, 58))
+>module.exports : Symbol("tests/cases/conformance/jsdoc/declarations/index", Decl(index.js, 0, 0))
+>module : Symbol(module, Decl(index.js, 0, 22), Decl(index.js, 31, 56), Decl(index.js, 53, 52), Decl(index.js, 56, 52))
+>exports : Symbol("tests/cases/conformance/jsdoc/declarations/index", Decl(index.js, 0, 0))
+>i : Symbol(i, Decl(index.js, 50, 58))
+
+// note that this last one doesn't make much sense in cjs, since exports aren't hoisted bindings
+Object.defineProperty(module.exports, "jj", { value: module.exports.j });
+>Object.defineProperty : Symbol(ObjectConstructor.defineProperty, Decl(lib.es5.d.ts, --, --))
+>Object : Symbol(Object, Decl(lib.es5.d.ts, --, --), Decl(lib.es5.d.ts, --, --))
+>defineProperty : Symbol(ObjectConstructor.defineProperty, Decl(lib.es5.d.ts, --, --))
+>module.exports : Symbol("tests/cases/conformance/jsdoc/declarations/index", Decl(index.js, 0, 0))
+>module : Symbol(module, Decl(index.js, 0, 22), Decl(index.js, 31, 56), Decl(index.js, 53, 52), Decl(index.js, 56, 52))
+>exports : Symbol("tests/cases/conformance/jsdoc/declarations/index", Decl(index.js, 0, 0))
+>"jj" : Symbol(jj, Decl(index.js, 53, 73))
+>value : Symbol(value, Decl(index.js, 56, 45))
+>module.exports.j : Symbol(j, Decl(index.js, 56, 73))
+>module.exports : Symbol("tests/cases/conformance/jsdoc/declarations/index", Decl(index.js, 0, 0))
+>module : Symbol(module, Decl(index.js, 0, 22), Decl(index.js, 31, 56), Decl(index.js, 53, 52), Decl(index.js, 56, 52))
+>exports : Symbol("tests/cases/conformance/jsdoc/declarations/index", Decl(index.js, 0, 0))
+>j : Symbol(j, Decl(index.js, 56, 73))
+
+Object.defineProperty(module.exports, "j", { value: function j() {} });
+>Object.defineProperty : Symbol(ObjectConstructor.defineProperty, Decl(lib.es5.d.ts, --, --))
+>Object : Symbol(Object, Decl(lib.es5.d.ts, --, --), Decl(lib.es5.d.ts, --, --))
+>defineProperty : Symbol(ObjectConstructor.defineProperty, Decl(lib.es5.d.ts, --, --))
+>module.exports : Symbol("tests/cases/conformance/jsdoc/declarations/index", Decl(index.js, 0, 0))
+>module : Symbol(module, Decl(index.js, 0, 22), Decl(index.js, 31, 56), Decl(index.js, 53, 52), Decl(index.js, 56, 52))
+>exports : Symbol("tests/cases/conformance/jsdoc/declarations/index", Decl(index.js, 0, 0))
+>"j" : Symbol(j, Decl(index.js, 56, 73))
+>value : Symbol(value, Decl(index.js, 57, 44))
+>j : Symbol(j, Decl(index.js, 57, 51))
+

tests/baselines/reference/jsDeclarationsExportDefinePropertyEmit.types

@@ -0,0 +1,267 @@
+=== tests/cases/conformance/jsdoc/declarations/index.js ===
+Object.defineProperty(module.exports, "a", { value: function a() {} });
+>Object.defineProperty(module.exports, "a", { value: function a() {} }) : any
+>Object.defineProperty : (o: any, p: string | number | symbol, attributes: PropertyDescriptor & ThisType<any>) => any
+>Object : ObjectConstructor
+>defineProperty : (o: any, p: string | number | symbol, attributes: PropertyDescriptor & ThisType<any>) => any
+>module.exports : typeof import("tests/cases/conformance/jsdoc/declarations/index")
+>module : { "tests/cases/conformance/jsdoc/declarations/index": typeof import("tests/cases/conformance/jsdoc/declarations/index"); }
+>exports : typeof import("tests/cases/conformance/jsdoc/declarations/index")
+>"a" : "a"
+>{ value: function a() {} } : { value: () => void; }
+>value : () => void
+>function a() {} : () => void
+>a : () => void
+
+Object.defineProperty(module.exports, "b", { value: function b() {} });
+>Object.defineProperty(module.exports, "b", { value: function b() {} }) : any
+>Object.defineProperty : (o: any, p: string | number | symbol, attributes: PropertyDescriptor & ThisType<any>) => any
+>Object : ObjectConstructor
+>defineProperty : (o: any, p: string | number | symbol, attributes: PropertyDescriptor & ThisType<any>) => any
+>module.exports : typeof import("tests/cases/conformance/jsdoc/declarations/index")
+>module : { "tests/cases/conformance/jsdoc/declarations/index": typeof import("tests/cases/conformance/jsdoc/declarations/index"); }
+>exports : typeof import("tests/cases/conformance/jsdoc/declarations/index")
+>"b" : "b"
+>{ value: function b() {} } : { value: () => void; }
+>value : () => void
+>function b() {} : () => void
+>b : () => void
+
+Object.defineProperty(module.exports.b, "cat", { value: "cat" });
+>Object.defineProperty(module.exports.b, "cat", { value: "cat" }) : any
+>Object.defineProperty : (o: any, p: string | number | symbol, attributes: PropertyDescriptor & ThisType<any>) => any
+>Object : ObjectConstructor
+>defineProperty : (o: any, p: string | number | symbol, attributes: PropertyDescriptor & ThisType<any>) => any
+>module.exports.b : () => void
+>module.exports : typeof import("tests/cases/conformance/jsdoc/declarations/index")
+>module : { "tests/cases/conformance/jsdoc/declarations/index": typeof import("tests/cases/conformance/jsdoc/declarations/index"); }
+>exports : typeof import("tests/cases/conformance/jsdoc/declarations/index")
+>b : () => void
+>"cat" : "cat"
+>{ value: "cat" } : { value: string; }
+>value : string
+>"cat" : "cat"
+
+/**
+ * @param {number} a
+ * @param {number} b
+ * @return {string} 
+ */
+function d(a, b) { return /** @type {*} */(null); }
+>d : (a: number, b: number) => string
+>a : number
+>b : number
+>(null) : any
+>null : null
+
+Object.defineProperty(module.exports, "d", { value: d });
+>Object.defineProperty(module.exports, "d", { value: d }) : any
+>Object.defineProperty : (o: any, p: string | number | symbol, attributes: PropertyDescriptor & ThisType<any>) => any
+>Object : ObjectConstructor
+>defineProperty : (o: any, p: string | number | symbol, attributes: PropertyDescriptor & ThisType<any>) => any
+>module.exports : typeof import("tests/cases/conformance/jsdoc/declarations/index")
+>module : { "tests/cases/conformance/jsdoc/declarations/index": typeof import("tests/cases/conformance/jsdoc/declarations/index"); }
+>exports : typeof import("tests/cases/conformance/jsdoc/declarations/index")
+>"d" : "d"
+>{ value: d } : { value: (a: number, b: number) => string; }
+>value : (a: number, b: number) => string
+>d : (a: number, b: number) => string
+
+
+/**
+ * @template T,U
+ * @param {T} a
+ * @param {U} b
+ * @return {T & U} 
+ */
+function e(a, b) { return /** @type {*} */(null); }
+>e : <T, U>(a: T, b: U) => T & U
+>a : T
+>b : U
+>(null) : any
+>null : null
+
+Object.defineProperty(module.exports, "e", { value: e });
+>Object.defineProperty(module.exports, "e", { value: e }) : any
+>Object.defineProperty : (o: any, p: string | number | symbol, attributes: PropertyDescriptor & ThisType<any>) => any
+>Object : ObjectConstructor
+>defineProperty : (o: any, p: string | number | symbol, attributes: PropertyDescriptor & ThisType<any>) => any
+>module.exports : typeof import("tests/cases/conformance/jsdoc/declarations/index")
+>module : { "tests/cases/conformance/jsdoc/declarations/index": typeof import("tests/cases/conformance/jsdoc/declarations/index"); }
+>exports : typeof import("tests/cases/conformance/jsdoc/declarations/index")
+>"e" : "e"
+>{ value: e } : { value: <T, U>(a: T, b: U) => T & U; }
+>value : <T, U>(a: T, b: U) => T & U
+>e : <T, U>(a: T, b: U) => T & U
+
+/**
+ * @template T
+ * @param {T} a
+ */
+function f(a) {
+>f : <T>(a: T) => T
+>a : T
+
+    return a;
+>a : T
+}
+Object.defineProperty(module.exports, "f", { value: f });
+>Object.defineProperty(module.exports, "f", { value: f }) : any
+>Object.defineProperty : (o: any, p: string | number | symbol, attributes: PropertyDescriptor & ThisType<any>) => any
+>Object : ObjectConstructor
+>defineProperty : (o: any, p: string | number | symbol, attributes: PropertyDescriptor & ThisType<any>) => any
+>module.exports : typeof import("tests/cases/conformance/jsdoc/declarations/index")
+>module : { "tests/cases/conformance/jsdoc/declarations/index": typeof import("tests/cases/conformance/jsdoc/declarations/index"); }
+>exports : typeof import("tests/cases/conformance/jsdoc/declarations/index")
+>"f" : "f"
+>{ value: f } : { value: <T>(a: T) => T; }
+>value : <T>(a: T) => T
+>f : <T>(a: T) => T
+
+Object.defineProperty(module.exports.f, "self", { value: module.exports.f });
+>Object.defineProperty(module.exports.f, "self", { value: module.exports.f }) : any
+>Object.defineProperty : (o: any, p: string | number | symbol, attributes: PropertyDescriptor & ThisType<any>) => any
+>Object : ObjectConstructor
+>defineProperty : (o: any, p: string | number | symbol, attributes: PropertyDescriptor & ThisType<any>) => any
+>module.exports.f : <T>(a: T) => T
+>module.exports : typeof import("tests/cases/conformance/jsdoc/declarations/index")
+>module : { "tests/cases/conformance/jsdoc/declarations/index": typeof import("tests/cases/conformance/jsdoc/declarations/index"); }
+>exports : typeof import("tests/cases/conformance/jsdoc/declarations/index")
+>f : <T>(a: T) => T
+>"self" : "self"
+>{ value: module.exports.f } : { value: <T>(a: T) => T; }
+>value : <T>(a: T) => T
+>module.exports.f : <T>(a: T) => T
+>module.exports : typeof import("tests/cases/conformance/jsdoc/declarations/index")
+>module : { "tests/cases/conformance/jsdoc/declarations/index": typeof import("tests/cases/conformance/jsdoc/declarations/index"); }
+>exports : typeof import("tests/cases/conformance/jsdoc/declarations/index")
+>f : <T>(a: T) => T
+
+/**
+ * @param {{x: string}} a
+ * @param {{y: typeof module.exports.b}} b
+ */
+function g(a, b) {
+>g : (a: { x: string; }, b: { y: () => void; }) => void
+>a : { x: string; }
+>b : { y: () => void; }
+
+    return a.x && b.y();
+>a.x && b.y() : void
+>a.x : string
+>a : { x: string; }
+>x : string
+>b.y() : void
+>b.y : () => void
+>b : { y: () => void; }
+>y : () => void
+}
+Object.defineProperty(module.exports, "g", { value: g });
+>Object.defineProperty(module.exports, "g", { value: g }) : any
+>Object.defineProperty : (o: any, p: string | number | symbol, attributes: PropertyDescriptor & ThisType<any>) => any
+>Object : ObjectConstructor
+>defineProperty : (o: any, p: string | number | symbol, attributes: PropertyDescriptor & ThisType<any>) => any
+>module.exports : typeof import("tests/cases/conformance/jsdoc/declarations/index")
+>module : { "tests/cases/conformance/jsdoc/declarations/index": typeof import("tests/cases/conformance/jsdoc/declarations/index"); }
+>exports : typeof import("tests/cases/conformance/jsdoc/declarations/index")
+>"g" : "g"
+>{ value: g } : { value: (a: { x: string; }, b: { y: () => void; }) => void; }
+>value : (a: { x: string; }, b: { y: () => void; }) => void
+>g : (a: { x: string; }, b: { y: () => void; }) => void
+
+
+/**
+ * @param {{x: string}} a
+ * @param {{y: typeof module.exports.b}} b
+ */
+function hh(a, b) {
+>hh : (a: { x: string; }, b: { y: () => void; }) => void
+>a : { x: string; }
+>b : { y: () => void; }
+
+    return a.x && b.y();
+>a.x && b.y() : void
+>a.x : string
+>a : { x: string; }
+>x : string
+>b.y() : void
+>b.y : () => void
+>b : { y: () => void; }
+>y : () => void
+}
+Object.defineProperty(module.exports, "h", { value: hh });
+>Object.defineProperty(module.exports, "h", { value: hh }) : any
+>Object.defineProperty : (o: any, p: string | number | symbol, attributes: PropertyDescriptor & ThisType<any>) => any
+>Object : ObjectConstructor
+>defineProperty : (o: any, p: string | number | symbol, attributes: PropertyDescriptor & ThisType<any>) => any
+>module.exports : typeof import("tests/cases/conformance/jsdoc/declarations/index")
+>module : { "tests/cases/conformance/jsdoc/declarations/index": typeof import("tests/cases/conformance/jsdoc/declarations/index"); }
+>exports : typeof import("tests/cases/conformance/jsdoc/declarations/index")
+>"h" : "h"
+>{ value: hh } : { value: (a: { x: string; }, b: { y: () => void; }) => void; }
+>value : (a: { x: string; }, b: { y: () => void; }) => void
+>hh : (a: { x: string; }, b: { y: () => void; }) => void
+
+Object.defineProperty(module.exports, "i", { value: function i(){} });
+>Object.defineProperty(module.exports, "i", { value: function i(){} }) : any
+>Object.defineProperty : (o: any, p: string | number | symbol, attributes: PropertyDescriptor & ThisType<any>) => any
+>Object : ObjectConstructor
+>defineProperty : (o: any, p: string | number | symbol, attributes: PropertyDescriptor & ThisType<any>) => any
+>module.exports : typeof import("tests/cases/conformance/jsdoc/declarations/index")
+>module : { "tests/cases/conformance/jsdoc/declarations/index": typeof import("tests/cases/conformance/jsdoc/declarations/index"); }
+>exports : typeof import("tests/cases/conformance/jsdoc/declarations/index")
+>"i" : "i"
+>{ value: function i(){} } : { value: () => void; }
+>value : () => void
+>function i(){} : () => void
+>i : () => void
+
+Object.defineProperty(module.exports, "ii", { value: module.exports.i });
+>Object.defineProperty(module.exports, "ii", { value: module.exports.i }) : any
+>Object.defineProperty : (o: any, p: string | number | symbol, attributes: PropertyDescriptor & ThisType<any>) => any
+>Object : ObjectConstructor
+>defineProperty : (o: any, p: string | number | symbol, attributes: PropertyDescriptor & ThisType<any>) => any
+>module.exports : typeof import("tests/cases/conformance/jsdoc/declarations/index")
+>module : { "tests/cases/conformance/jsdoc/declarations/index": typeof import("tests/cases/conformance/jsdoc/declarations/index"); }
+>exports : typeof import("tests/cases/conformance/jsdoc/declarations/index")
+>"ii" : "ii"
+>{ value: module.exports.i } : { value: () => void; }
+>value : () => void
+>module.exports.i : () => void
+>module.exports : typeof import("tests/cases/conformance/jsdoc/declarations/index")
+>module : { "tests/cases/conformance/jsdoc/declarations/index": typeof import("tests/cases/conformance/jsdoc/declarations/index"); }
+>exports : typeof import("tests/cases/conformance/jsdoc/declarations/index")
+>i : () => void
+
+// note that this last one doesn't make much sense in cjs, since exports aren't hoisted bindings
+Object.defineProperty(module.exports, "jj", { value: module.exports.j });
+>Object.defineProperty(module.exports, "jj", { value: module.exports.j }) : any
+>Object.defineProperty : (o: any, p: string | number | symbol, attributes: PropertyDescriptor & ThisType<any>) => any
+>Object : ObjectConstructor
+>defineProperty : (o: any, p: string | number | symbol, attributes: PropertyDescriptor & ThisType<any>) => any
+>module.exports : typeof import("tests/cases/conformance/jsdoc/declarations/index")
+>module : { "tests/cases/conformance/jsdoc/declarations/index": typeof import("tests/cases/conformance/jsdoc/declarations/index"); }
+>exports : typeof import("tests/cases/conformance/jsdoc/declarations/index")
+>"jj" : "jj"
+>{ value: module.exports.j } : { value: () => void; }
+>value : () => void
+>module.exports.j : () => void
+>module.exports : typeof import("tests/cases/conformance/jsdoc/declarations/index")
+>module : { "tests/cases/conformance/jsdoc/declarations/index": typeof import("tests/cases/conformance/jsdoc/declarations/index"); }
+>exports : typeof import("tests/cases/conformance/jsdoc/declarations/index")
+>j : () => void
+
+Object.defineProperty(module.exports, "j", { value: function j() {} });
+>Object.defineProperty(module.exports, "j", { value: function j() {} }) : any
+>Object.defineProperty : (o: any, p: string | number | symbol, attributes: PropertyDescriptor & ThisType<any>) => any
+>Object : ObjectConstructor
+>defineProperty : (o: any, p: string | number | symbol, attributes: PropertyDescriptor & ThisType<any>) => any
+>module.exports : typeof import("tests/cases/conformance/jsdoc/declarations/index")
+>module : { "tests/cases/conformance/jsdoc/declarations/index": typeof import("tests/cases/conformance/jsdoc/declarations/index"); }
+>exports : typeof import("tests/cases/conformance/jsdoc/declarations/index")
+>"j" : "j"
+>{ value: function j() {} } : { value: () => void; }
+>value : () => void
+>function j() {} : () => void
+>j : () => void
+

tests/baselines/reference/jsDeclarationsExportForms.js

@@ -0,0 +1,169 @@
+//// [tests/cases/conformance/jsdoc/declarations/jsDeclarationsExportForms.ts] ////
+
+//// [cls.js]
+export class Foo {}
+
+//// [func.js]
+export function func() {}
+
+//// [bar.js]
+export * from "./cls";
+
+//// [bar2.js]
+export * from "./func";
+export * from "./cls";
+
+//// [baz.js]
+import {Foo} from "./cls";
+export {Foo};
+
+//// [bat.js]
+import * as ns from "./cls";
+export default ns;
+
+//// [ban.js]
+import * as ns from "./cls";
+export {ns};
+
+//// [bol.js]
+import * as ns from "./cls";
+export { ns as classContainer };
+
+//// [cjs.js]
+const ns = require("./cls");
+module.exports = { ns };
+
+//// [cjs2.js]
+const ns = require("./cls");
+module.exports = ns;
+
+//// [cjs3.js]
+const ns = require("./cls");
+module.exports.ns = ns;
+
+//// [cjs4.js]
+const ns = require("./cls");
+module.exports.names = ns;
+
+//// [includeAll.js]
+import "./cjs4";
+import "./cjs3";
+import "./cjs2";
+import "./cjs";
+import "./bol";
+import "./ban";
+import "./bat";
+import "./baz";
+import "./bar";
+import "./bar2";
+
+
+//// [cls.js]
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+var Foo = /** @class */ (function () {
+    function Foo() {
+    }
+    return Foo;
+}());
+exports.Foo = Foo;
+//// [func.js]
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+function func() { }
+exports.func = func;
+//// [bar.js]
+"use strict";
+function __export(m) {
+    for (var p in m) if (!exports.hasOwnProperty(p)) exports[p] = m[p];
+}
+Object.defineProperty(exports, "__esModule", { value: true });
+__export(require("./cls"));
+//// [bar2.js]
+"use strict";
+function __export(m) {
+    for (var p in m) if (!exports.hasOwnProperty(p)) exports[p] = m[p];
+}
+Object.defineProperty(exports, "__esModule", { value: true });
+__export(require("./func"));
+__export(require("./cls"));
+//// [baz.js]
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+var cls_1 = require("./cls");
+exports.Foo = cls_1.Foo;
+//// [bat.js]
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+var ns = require("./cls");
+exports.default = ns;
+//// [ban.js]
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+var ns = require("./cls");
+exports.ns = ns;
+//// [bol.js]
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+var ns = require("./cls");
+exports.classContainer = ns;
+//// [cjs.js]
+var ns = require("./cls");
+module.exports = { ns: ns };
+//// [cjs2.js]
+var ns = require("./cls");
+module.exports = ns;
+//// [cjs3.js]
+var ns = require("./cls");
+module.exports.ns = ns;
+//// [cjs4.js]
+var ns = require("./cls");
+module.exports.names = ns;
+//// [includeAll.js]
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+require("./cjs4");
+require("./cjs3");
+require("./cjs2");
+require("./cjs");
+require("./bol");
+require("./ban");
+require("./bat");
+require("./baz");
+require("./bar");
+require("./bar2");
+
+
+//// [cls.d.ts]
+export class Foo {
+}
+//// [func.d.ts]
+export function func(): void;
+//// [bar.d.ts]
+export * from "./cls";
+//// [bar2.d.ts]
+export * from "./func";
+export * from "./cls";
+//// [baz.d.ts]
+export { Foo };
+import { Foo } from "./cls";
+//// [bat.d.ts]
+export default ns;
+import * as ns from "./cls";
+//// [ban.d.ts]
+export { ns };
+import * as ns from "./cls";
+//// [bol.d.ts]
+export { ns as classContainer };
+import * as ns from "./cls";
+//// [cjs.d.ts]
+export const ns: typeof import("./cls");
+//// [cjs2.d.ts]
+export = ns;
+declare const ns: typeof import("./cls");
+//// [cjs3.d.ts]
+export var ns: typeof import("./cls");
+//// [cjs4.d.ts]
+export var names: typeof import("./cls");
+//// [includeAll.d.ts]
+export {};

tests/baselines/reference/jsDeclarationsExportForms.symbols

@@ -0,0 +1,109 @@
+=== tests/cases/conformance/jsdoc/declarations/cls.js ===
+export class Foo {}
+>Foo : Symbol(Foo, Decl(cls.js, 0, 0))
+
+=== tests/cases/conformance/jsdoc/declarations/func.js ===
+export function func() {}
+>func : Symbol(func, Decl(func.js, 0, 0))
+
+=== tests/cases/conformance/jsdoc/declarations/bar.js ===
+export * from "./cls";
+No type information for this code.
+No type information for this code.=== tests/cases/conformance/jsdoc/declarations/bar2.js ===
+export * from "./func";
+No type information for this code.export * from "./cls";
+No type information for this code.
+No type information for this code.=== tests/cases/conformance/jsdoc/declarations/baz.js ===
+import {Foo} from "./cls";
+>Foo : Symbol(Foo, Decl(baz.js, 0, 8))
+
+export {Foo};
+>Foo : Symbol(Foo, Decl(baz.js, 1, 8))
+
+=== tests/cases/conformance/jsdoc/declarations/bat.js ===
+import * as ns from "./cls";
+>ns : Symbol(ns, Decl(bat.js, 0, 6))
+
+export default ns;
+>ns : Symbol(ns, Decl(bat.js, 0, 6))
+
+=== tests/cases/conformance/jsdoc/declarations/ban.js ===
+import * as ns from "./cls";
+>ns : Symbol(ns, Decl(ban.js, 0, 6))
+
+export {ns};
+>ns : Symbol(ns, Decl(ban.js, 1, 8))
+
+=== tests/cases/conformance/jsdoc/declarations/bol.js ===
+import * as ns from "./cls";
+>ns : Symbol(ns, Decl(bol.js, 0, 6))
+
+export { ns as classContainer };
+>ns : Symbol(ns, Decl(bol.js, 0, 6))
+>classContainer : Symbol(classContainer, Decl(bol.js, 1, 8))
+
+=== tests/cases/conformance/jsdoc/declarations/cjs.js ===
+const ns = require("./cls");
+>ns : Symbol(ns, Decl(cjs.js, 0, 5))
+>require : Symbol(require)
+>"./cls" : Symbol("tests/cases/conformance/jsdoc/declarations/cls", Decl(cls.js, 0, 0))
+
+module.exports = { ns };
+>module.exports : Symbol("tests/cases/conformance/jsdoc/declarations/cjs", Decl(cjs.js, 0, 0))
+>module : Symbol(export=, Decl(cjs.js, 0, 28))
+>exports : Symbol(export=, Decl(cjs.js, 0, 28))
+>ns : Symbol(ns, Decl(cjs.js, 1, 18))
+
+=== tests/cases/conformance/jsdoc/declarations/cjs2.js ===
+const ns = require("./cls");
+>ns : Symbol(ns, Decl(cjs2.js, 0, 5))
+>require : Symbol(require)
+>"./cls" : Symbol("tests/cases/conformance/jsdoc/declarations/cls", Decl(cls.js, 0, 0))
+
+module.exports = ns;
+>module.exports : Symbol("tests/cases/conformance/jsdoc/declarations/cjs2", Decl(cjs2.js, 0, 0))
+>module : Symbol(export=, Decl(cjs2.js, 0, 28))
+>exports : Symbol(export=, Decl(cjs2.js, 0, 28))
+>ns : Symbol(ns, Decl(cjs2.js, 0, 5))
+
+=== tests/cases/conformance/jsdoc/declarations/cjs3.js ===
+const ns = require("./cls");
+>ns : Symbol(ns, Decl(cjs3.js, 0, 5))
+>require : Symbol(require)
+>"./cls" : Symbol("tests/cases/conformance/jsdoc/declarations/cls", Decl(cls.js, 0, 0))
+
+module.exports.ns = ns;
+>module.exports.ns : Symbol(ns, Decl(cjs3.js, 0, 28))
+>module.exports : Symbol(ns, Decl(cjs3.js, 0, 28))
+>module : Symbol(module, Decl(cjs3.js, 0, 28))
+>exports : Symbol("tests/cases/conformance/jsdoc/declarations/cjs3", Decl(cjs3.js, 0, 0))
+>ns : Symbol(ns, Decl(cjs3.js, 0, 28))
+>ns : Symbol(ns, Decl(cjs3.js, 0, 5))
+
+=== tests/cases/conformance/jsdoc/declarations/cjs4.js ===
+const ns = require("./cls");
+>ns : Symbol(ns, Decl(cjs4.js, 0, 5))
+>require : Symbol(require)
+>"./cls" : Symbol("tests/cases/conformance/jsdoc/declarations/cls", Decl(cls.js, 0, 0))
+
+module.exports.names = ns;
+>module.exports.names : Symbol(names, Decl(cjs4.js, 0, 28))
+>module.exports : Symbol(names, Decl(cjs4.js, 0, 28))
+>module : Symbol(module, Decl(cjs4.js, 0, 28))
+>exports : Symbol("tests/cases/conformance/jsdoc/declarations/cjs4", Decl(cjs4.js, 0, 0))
+>names : Symbol(names, Decl(cjs4.js, 0, 28))
+>ns : Symbol(ns, Decl(cjs4.js, 0, 5))
+
+=== tests/cases/conformance/jsdoc/declarations/includeAll.js ===
+import "./cjs4";
+No type information for this code.import "./cjs3";
+No type information for this code.import "./cjs2";
+No type information for this code.import "./cjs";
+No type information for this code.import "./bol";
+No type information for this code.import "./ban";
+No type information for this code.import "./bat";
+No type information for this code.import "./baz";
+No type information for this code.import "./bar";
+No type information for this code.import "./bar2";
+No type information for this code.
+No type information for this code.

tests/baselines/reference/jsDeclarationsExportForms.types

@@ -0,0 +1,118 @@
+=== tests/cases/conformance/jsdoc/declarations/cls.js ===
+export class Foo {}
+>Foo : Foo
+
+=== tests/cases/conformance/jsdoc/declarations/func.js ===
+export function func() {}
+>func : () => void
+
+=== tests/cases/conformance/jsdoc/declarations/bar.js ===
+export * from "./cls";
+No type information for this code.
+No type information for this code.=== tests/cases/conformance/jsdoc/declarations/bar2.js ===
+export * from "./func";
+No type information for this code.export * from "./cls";
+No type information for this code.
+No type information for this code.=== tests/cases/conformance/jsdoc/declarations/baz.js ===
+import {Foo} from "./cls";
+>Foo : typeof Foo
+
+export {Foo};
+>Foo : typeof Foo
+
+=== tests/cases/conformance/jsdoc/declarations/bat.js ===
+import * as ns from "./cls";
+>ns : typeof ns
+
+export default ns;
+>ns : typeof ns
+
+=== tests/cases/conformance/jsdoc/declarations/ban.js ===
+import * as ns from "./cls";
+>ns : typeof ns
+
+export {ns};
+>ns : typeof ns
+
+=== tests/cases/conformance/jsdoc/declarations/bol.js ===
+import * as ns from "./cls";
+>ns : typeof ns
+
+export { ns as classContainer };
+>ns : typeof ns
+>classContainer : typeof ns
+
+=== tests/cases/conformance/jsdoc/declarations/cjs.js ===
+const ns = require("./cls");
+>ns : typeof import("tests/cases/conformance/jsdoc/declarations/cls")
+>require("./cls") : typeof import("tests/cases/conformance/jsdoc/declarations/cls")
+>require : any
+>"./cls" : "./cls"
+
+module.exports = { ns };
+>module.exports = { ns } : { ns: typeof import("tests/cases/conformance/jsdoc/declarations/cls"); }
+>module.exports : { ns: typeof import("tests/cases/conformance/jsdoc/declarations/cls"); }
+>module : { "tests/cases/conformance/jsdoc/declarations/cjs": { ns: typeof import("tests/cases/conformance/jsdoc/declarations/cls"); }; }
+>exports : { ns: typeof import("tests/cases/conformance/jsdoc/declarations/cls"); }
+>{ ns } : { ns: typeof import("tests/cases/conformance/jsdoc/declarations/cls"); }
+>ns : typeof import("tests/cases/conformance/jsdoc/declarations/cls")
+
+=== tests/cases/conformance/jsdoc/declarations/cjs2.js ===
+const ns = require("./cls");
+>ns : typeof import("tests/cases/conformance/jsdoc/declarations/cls")
+>require("./cls") : typeof import("tests/cases/conformance/jsdoc/declarations/cls")
+>require : any
+>"./cls" : "./cls"
+
+module.exports = ns;
+>module.exports = ns : typeof import("tests/cases/conformance/jsdoc/declarations/cls")
+>module.exports : typeof import("tests/cases/conformance/jsdoc/declarations/cls")
+>module : { "tests/cases/conformance/jsdoc/declarations/cjs2": typeof import("tests/cases/conformance/jsdoc/declarations/cls"); }
+>exports : typeof import("tests/cases/conformance/jsdoc/declarations/cls")
+>ns : typeof import("tests/cases/conformance/jsdoc/declarations/cls")
+
+=== tests/cases/conformance/jsdoc/declarations/cjs3.js ===
+const ns = require("./cls");
+>ns : typeof import("tests/cases/conformance/jsdoc/declarations/cls")
+>require("./cls") : typeof import("tests/cases/conformance/jsdoc/declarations/cls")
+>require : any
+>"./cls" : "./cls"
+
+module.exports.ns = ns;
+>module.exports.ns = ns : typeof import("tests/cases/conformance/jsdoc/declarations/cls")
+>module.exports.ns : typeof import("tests/cases/conformance/jsdoc/declarations/cls")
+>module.exports : typeof import("tests/cases/conformance/jsdoc/declarations/cjs3")
+>module : { "tests/cases/conformance/jsdoc/declarations/cjs3": typeof import("tests/cases/conformance/jsdoc/declarations/cjs3"); }
+>exports : typeof import("tests/cases/conformance/jsdoc/declarations/cjs3")
+>ns : typeof import("tests/cases/conformance/jsdoc/declarations/cls")
+>ns : typeof import("tests/cases/conformance/jsdoc/declarations/cls")
+
+=== tests/cases/conformance/jsdoc/declarations/cjs4.js ===
+const ns = require("./cls");
+>ns : typeof import("tests/cases/conformance/jsdoc/declarations/cls")
+>require("./cls") : typeof import("tests/cases/conformance/jsdoc/declarations/cls")
+>require : any
+>"./cls" : "./cls"
+
+module.exports.names = ns;
+>module.exports.names = ns : typeof import("tests/cases/conformance/jsdoc/declarations/cls")
+>module.exports.names : typeof import("tests/cases/conformance/jsdoc/declarations/cls")
+>module.exports : typeof import("tests/cases/conformance/jsdoc/declarations/cjs4")
+>module : { "tests/cases/conformance/jsdoc/declarations/cjs4": typeof import("tests/cases/conformance/jsdoc/declarations/cjs4"); }
+>exports : typeof import("tests/cases/conformance/jsdoc/declarations/cjs4")
+>names : typeof import("tests/cases/conformance/jsdoc/declarations/cls")
+>ns : typeof import("tests/cases/conformance/jsdoc/declarations/cls")
+
+=== tests/cases/conformance/jsdoc/declarations/includeAll.js ===
+import "./cjs4";
+No type information for this code.import "./cjs3";
+No type information for this code.import "./cjs2";
+No type information for this code.import "./cjs";
+No type information for this code.import "./bol";
+No type information for this code.import "./ban";
+No type information for this code.import "./bat";
+No type information for this code.import "./baz";
+No type information for this code.import "./bar";
+No type information for this code.import "./bar2";
+No type information for this code.
+No type information for this code.

tests/baselines/reference/jsDeclarationsExportFormsErr.errors.txt

@@ -0,0 +1,34 @@
+tests/cases/conformance/jsdoc/declarations/bar.js(1,1): error TS8002: 'import ... =' can only be used in a .ts file.
+tests/cases/conformance/jsdoc/declarations/bar.js(2,1): error TS8003: 'export=' can only be used in a .ts file.
+tests/cases/conformance/jsdoc/declarations/bin.js(2,1): error TS2580: Cannot find name 'module'. Do you need to install type definitions for node? Try `npm i @types/node`.
+tests/cases/conformance/jsdoc/declarations/globalNs.js(2,1): error TS1315: Global module exports may only appear in declaration files.
+
+
+==== tests/cases/conformance/jsdoc/declarations/cls.js (0 errors) ====
+    export class Foo {}
+    
+==== tests/cases/conformance/jsdoc/declarations/bar.js (2 errors) ====
+    import ns = require("./cls");
+    ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+!!! error TS8002: 'import ... =' can only be used in a .ts file.
+    export = ns; // TS Only
+    ~~~~~~~~~~~~
+!!! error TS8003: 'export=' can only be used in a .ts file.
+    
+==== tests/cases/conformance/jsdoc/declarations/bin.js (1 errors) ====
+    import * as ns from "./cls";
+    module.exports = ns; // We refuse to bind cjs module exports assignments in the same file we find an import in
+    ~~~~~~
+!!! error TS2580: Cannot find name 'module'. Do you need to install type definitions for node? Try `npm i @types/node`.
+    
+==== tests/cases/conformance/jsdoc/declarations/globalNs.js (1 errors) ====
+    export * from "./cls";
+    export as namespace GLO; // TS Only
+    ~~~~~~~~~~~~~~~~~~~~~~~~
+!!! error TS1315: Global module exports may only appear in declaration files.
+    
+==== tests/cases/conformance/jsdoc/declarations/includeAll.js (0 errors) ====
+    import "./bar";
+    import "./bin";
+    import "./globalNs";
+    

tests/baselines/reference/jsDeclarationsExportFormsErr.js

@@ -0,0 +1,68 @@
+//// [tests/cases/conformance/jsdoc/declarations/jsDeclarationsExportFormsErr.ts] ////
+
+//// [cls.js]
+export class Foo {}
+
+//// [bar.js]
+import ns = require("./cls");
+export = ns; // TS Only
+
+//// [bin.js]
+import * as ns from "./cls";
+module.exports = ns; // We refuse to bind cjs module exports assignments in the same file we find an import in
+
+//// [globalNs.js]
+export * from "./cls";
+export as namespace GLO; // TS Only
+
+//// [includeAll.js]
+import "./bar";
+import "./bin";
+import "./globalNs";
+
+
+//// [cls.js]
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+var Foo = /** @class */ (function () {
+    function Foo() {
+    }
+    return Foo;
+}());
+exports.Foo = Foo;
+//// [bar.js]
+"use strict";
+var ns = require("./cls");
+module.exports = ns;
+//// [bin.js]
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+var ns = require("./cls");
+module.exports = ns; // We refuse to bind cjs module exports assignments in the same file we find an import in
+//// [globalNs.js]
+"use strict";
+function __export(m) {
+    for (var p in m) if (!exports.hasOwnProperty(p)) exports[p] = m[p];
+}
+Object.defineProperty(exports, "__esModule", { value: true });
+__export(require("./cls"));
+//// [includeAll.js]
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+require("./bar");
+require("./bin");
+require("./globalNs");
+
+
+//// [cls.d.ts]
+export class Foo {
+}
+//// [bar.d.ts]
+export = ns;
+import ns = require("./bar");
+//// [bin.d.ts]
+export {};
+//// [globalNs.d.ts]
+export * from "./cls";
+//// [includeAll.d.ts]
+export {};