Handle when import alias has no parent in JS declarations (therefore is synthetic module symbol)

src/compiler/checker.ts

@@ -5350,7 +5350,7 @@ namespace ts {
                     // so we don't even have placeholders to fill in.
                     if (length(realMembers)) {
                         const localName = getInternalSymbolName(symbol, symbolName);
-                        serializeAsNamespaceDeclaration(realMembers, localName, modifierFlags, /*suppressNewPrivateContext*/ false);
+                        serializeAsNamespaceDeclaration(realMembers, localName, modifierFlags, !!(symbol.flags & SymbolFlags.Function));
                     }
                     if (length(mergedMembers)) {
                         const localName = getInternalSymbolName(symbol, symbolName);
@@ -5593,7 +5593,10 @@ namespace ts {
                                 /*decorators*/ undefined,
                                 /*modifiers*/ undefined,
                                 createImportClause(createIdentifier(localName), /*namedBindings*/ undefined),
-                                createLiteral(getSpecifierForModuleSymbol(target.parent!, context))
+                                // We use `target.parent || target` below as `target.parent` is unset when the target is a module which has been export assigned
+                                // And then made into a default by the `esModuleInterop` or `allowSyntheticDefaultImports` flag
+                                // In such cases, the `target` refers to the module itself already
+                                createLiteral(getSpecifierForModuleSymbol(target.parent || target, context))
                             ), ModifierFlags.None);
                             break;
                         case SyntaxKind.NamespaceImport:
@@ -5614,7 +5617,7 @@ namespace ts {
                                         createIdentifier(localName)
                                     )
                                 ])),
-                                createLiteral(getSpecifierForModuleSymbol(target.parent!, context))
+                                createLiteral(getSpecifierForModuleSymbol(target.parent || target, context))
                             ), ModifierFlags.None);
                             break;
                         case SyntaxKind.ExportSpecifier:

src/compiler/transformers/declarations.ts

@@ -285,6 +285,7 @@ namespace ts {
             let combinedStatements: NodeArray<Statement>;
             if (isSourceFileJS(currentSourceFile)) {
                 combinedStatements = createNodeArray(transformDeclarationsForJS(node));
+                refs.forEach(referenceVisitor);
                 emittedImports = filter(combinedStatements, isAnyImportSyntax);
             }
             else {

tests/baselines/reference/jsDeclarationsFunctions.js

@@ -130,8 +130,6 @@ export namespace b {
 export function c(): void;
 export namespace c {
     export { Cls };
-    class Cls {
-    }
 }
 /**
  * @param {number} a
@@ -156,6 +154,8 @@ export namespace f {
 }
 export function i(): void;
 export function j(): void;
+declare class Cls {
+}
 /**
  * @param {{x: string}} a
  * @param {{y: typeof b}} b

tests/baselines/reference/jsxDeclarationsWithEsModuleInteropNoCrash.js

@@ -0,0 +1,43 @@
+//// [jsxDeclarationsWithEsModuleInteropNoCrash.jsx]
+/// <reference path="/.lib/react16.d.ts" />
+import PropTypes from 'prop-types';
+import React from 'react';
+
+const propTypes = {
+  bar: PropTypes.bool,
+};
+
+const defaultProps = {
+  bar: false,
+};
+
+function Foo({ bar }) {
+  return <div>{bar}</div>;
+}
+
+Foo.propTypes = propTypes;
+Foo.defaultProps = defaultProps;
+
+export default Foo;
+
+
+
+//// [jsxDeclarationsWithEsModuleInteropNoCrash.d.ts]
+/// <reference path="../../../..react16.d.ts" />
+export default Foo;
+declare function Foo({ bar }: {
+    bar: any;
+}): JSX.Element;
+declare namespace Foo {
+    export { propTypes };
+    export { defaultProps };
+}
+declare namespace propTypes {
+    import bar = PropTypes.bool;
+    export { bar };
+}
+declare namespace defaultProps {
+    const bar_1: boolean;
+    export { bar_1 as bar };
+}
+import PropTypes from "prop-types";

tests/baselines/reference/jsxDeclarationsWithEsModuleInteropNoCrash.symbols

@@ -0,0 +1,52 @@
+=== tests/cases/compiler/jsxDeclarationsWithEsModuleInteropNoCrash.jsx ===
+/// <reference path="react16.d.ts" />
+import PropTypes from 'prop-types';
+>PropTypes : Symbol(PropTypes, Decl(jsxDeclarationsWithEsModuleInteropNoCrash.jsx, 1, 6))
+
+import React from 'react';
+>React : Symbol(React, Decl(jsxDeclarationsWithEsModuleInteropNoCrash.jsx, 2, 6))
+
+const propTypes = {
+>propTypes : Symbol(propTypes, Decl(jsxDeclarationsWithEsModuleInteropNoCrash.jsx, 4, 5))
+
+  bar: PropTypes.bool,
+>bar : Symbol(bar, Decl(jsxDeclarationsWithEsModuleInteropNoCrash.jsx, 4, 19))
+>PropTypes.bool : Symbol(PropTypes.bool, Decl(react16.d.ts, 62, 16))
+>PropTypes : Symbol(PropTypes, Decl(jsxDeclarationsWithEsModuleInteropNoCrash.jsx, 1, 6))
+>bool : Symbol(PropTypes.bool, Decl(react16.d.ts, 62, 16))
+
+};
+
+const defaultProps = {
+>defaultProps : Symbol(defaultProps, Decl(jsxDeclarationsWithEsModuleInteropNoCrash.jsx, 8, 5))
+
+  bar: false,
+>bar : Symbol(bar, Decl(jsxDeclarationsWithEsModuleInteropNoCrash.jsx, 8, 22))
+
+};
+
+function Foo({ bar }) {
+>Foo : Symbol(Foo, Decl(jsxDeclarationsWithEsModuleInteropNoCrash.jsx, 10, 2), Decl(jsxDeclarationsWithEsModuleInteropNoCrash.jsx, 14, 1), Decl(jsxDeclarationsWithEsModuleInteropNoCrash.jsx, 16, 26))
+>bar : Symbol(bar, Decl(jsxDeclarationsWithEsModuleInteropNoCrash.jsx, 12, 14))
+
+  return <div>{bar}</div>;
+>div : Symbol(JSX.IntrinsicElements.div, Decl(react16.d.ts, 2420, 114))
+>bar : Symbol(bar, Decl(jsxDeclarationsWithEsModuleInteropNoCrash.jsx, 12, 14))
+>div : Symbol(JSX.IntrinsicElements.div, Decl(react16.d.ts, 2420, 114))
+}
+
+Foo.propTypes = propTypes;
+>Foo.propTypes : Symbol(Foo.propTypes, Decl(jsxDeclarationsWithEsModuleInteropNoCrash.jsx, 14, 1))
+>Foo : Symbol(Foo, Decl(jsxDeclarationsWithEsModuleInteropNoCrash.jsx, 10, 2), Decl(jsxDeclarationsWithEsModuleInteropNoCrash.jsx, 14, 1), Decl(jsxDeclarationsWithEsModuleInteropNoCrash.jsx, 16, 26))
+>propTypes : Symbol(Foo.propTypes, Decl(jsxDeclarationsWithEsModuleInteropNoCrash.jsx, 14, 1))
+>propTypes : Symbol(propTypes, Decl(jsxDeclarationsWithEsModuleInteropNoCrash.jsx, 4, 5))
+
+Foo.defaultProps = defaultProps;
+>Foo.defaultProps : Symbol(Foo.defaultProps, Decl(jsxDeclarationsWithEsModuleInteropNoCrash.jsx, 16, 26))
+>Foo : Symbol(Foo, Decl(jsxDeclarationsWithEsModuleInteropNoCrash.jsx, 10, 2), Decl(jsxDeclarationsWithEsModuleInteropNoCrash.jsx, 14, 1), Decl(jsxDeclarationsWithEsModuleInteropNoCrash.jsx, 16, 26))
+>defaultProps : Symbol(Foo.defaultProps, Decl(jsxDeclarationsWithEsModuleInteropNoCrash.jsx, 16, 26))
+>defaultProps : Symbol(defaultProps, Decl(jsxDeclarationsWithEsModuleInteropNoCrash.jsx, 8, 5))
+
+export default Foo;
+>Foo : Symbol(Foo, Decl(jsxDeclarationsWithEsModuleInteropNoCrash.jsx, 10, 2), Decl(jsxDeclarationsWithEsModuleInteropNoCrash.jsx, 14, 1), Decl(jsxDeclarationsWithEsModuleInteropNoCrash.jsx, 16, 26))
+

tests/baselines/reference/jsxDeclarationsWithEsModuleInteropNoCrash.types

@@ -0,0 +1,58 @@
+=== tests/cases/compiler/jsxDeclarationsWithEsModuleInteropNoCrash.jsx ===
+/// <reference path="react16.d.ts" />
+import PropTypes from 'prop-types';
+>PropTypes : typeof PropTypes
+
+import React from 'react';
+>React : typeof React
+
+const propTypes = {
+>propTypes : { bar: PropTypes.Requireable<boolean>; }
+>{  bar: PropTypes.bool,} : { bar: PropTypes.Requireable<boolean>; }
+
+  bar: PropTypes.bool,
+>bar : PropTypes.Requireable<boolean>
+>PropTypes.bool : PropTypes.Requireable<boolean>
+>PropTypes : typeof PropTypes
+>bool : PropTypes.Requireable<boolean>
+
+};
+
+const defaultProps = {
+>defaultProps : { bar: boolean; }
+>{  bar: false,} : { bar: boolean; }
+
+  bar: false,
+>bar : boolean
+>false : false
+
+};
+
+function Foo({ bar }) {
+>Foo : typeof Foo
+>bar : any
+
+  return <div>{bar}</div>;
+><div>{bar}</div> : JSX.Element
+>div : any
+>bar : any
+>div : any
+}
+
+Foo.propTypes = propTypes;
+>Foo.propTypes = propTypes : { bar: PropTypes.Requireable<boolean>; }
+>Foo.propTypes : { bar: PropTypes.Requireable<boolean>; }
+>Foo : typeof Foo
+>propTypes : { bar: PropTypes.Requireable<boolean>; }
+>propTypes : { bar: PropTypes.Requireable<boolean>; }
+
+Foo.defaultProps = defaultProps;
+>Foo.defaultProps = defaultProps : { bar: boolean; }
+>Foo.defaultProps : { bar: boolean; }
+>Foo : typeof Foo
+>defaultProps : { bar: boolean; }
+>defaultProps : { bar: boolean; }
+
+export default Foo;
+>Foo : typeof Foo
+

tests/cases/compiler/jsxDeclarationsWithEsModuleInteropNoCrash.tsx

@@ -0,0 +1,29 @@
+// @allowJs: true
+// @checkJs: true
+// @emitDeclarationOnly: true
+// @declaration: true
+// @strict: true
+// @esModuleInterop: true
+// @jsx: react
+// @noImplicitAny: false
+// @filename: jsxDeclarationsWithEsModuleInteropNoCrash.jsx
+/// <reference path="/.lib/react16.d.ts" />
+import PropTypes from 'prop-types';
+import React from 'react';
+
+const propTypes = {
+  bar: PropTypes.bool,
+};
+
+const defaultProps = {
+  bar: false,
+};
+
+function Foo({ bar }) {
+  return <div>{bar}</div>;
+}
+
+Foo.propTypes = propTypes;
+Foo.defaultProps = defaultProps;
+
+export default Foo;