fix: check for default export

See: #2

src/__tests__/default-export.ts

@@ -0,0 +1,35 @@
+import { getESLintTester } from "./fixtures/eslint";
+
+const tester = getESLintTester();
+
+describe("default export", () => {
+  it("Cannot import a package-default-export from sub directory", async () => {
+    const result = await tester.lintFile("src/default-export/foo.ts");
+    expect(result).toMatchInlineSnapshot(`
+      Array [
+        Object {
+          "column": 8,
+          "endColumn": 12,
+          "endLine": 1,
+          "line": 1,
+          "message": "Cannot import a package-private export 'default'",
+          "messageId": "package",
+          "nodeType": "ImportDefaultSpecifier",
+          "ruleId": "import-access/jsdoc",
+          "severity": 2,
+        },
+        Object {
+          "column": 10,
+          "endColumn": 25,
+          "endLine": 4,
+          "line": 4,
+          "message": "Cannot import a package-private export 'default'",
+          "messageId": "package",
+          "nodeType": "ImportSpecifier",
+          "ruleId": "import-access/jsdoc",
+          "severity": 2,
+        },
+      ]
+    `);
+  });
+});

src/__tests__/fixtures/project/src/default-export/foo.ts

@@ -0,0 +1,6 @@
+import bar1 from "./sub/bar";
+import baz from "./sub/baz";
+
+import { default as bar2 } from "./sub/bar";
+
+console.log(bar1, bar2, baz);

src/__tests__/fixtures/project/src/default-export/sub/bar.ts

@@ -0,0 +1,4 @@
+/**
+ * @package
+ */
+export default "I am bar";

src/__tests__/fixtures/project/src/default-export/sub/baz.ts

@@ -0,0 +1 @@
+export default "This is baz";

src/utils/findExportableDeclaration.ts

@@ -1,5 +1,6 @@
 import {
   isClassDeclaration,
+  isExportAssignment,
   isExportDeclaration,
   isFunctionDeclaration,
   isInterfaceDeclaration,
@@ -19,7 +20,7 @@ export function findExportedDeclaration(node: Node) {
     return;
   }
 
-  if (isExportDeclaration(decl)) {
+  if (isExportDeclaration(decl) || isExportAssignment(decl)) {
     return decl;
   }
 
@@ -36,6 +37,7 @@ function findExportableDeclaration(node: Node) {
       isClassDeclaration(node) ||
       isVariableStatement(node) ||
       isExportDeclaration(node) ||
+      isExportAssignment(node) ||
       isTypeAliasDeclaration(node) ||
       isInterfaceDeclaration(node)
     ) {