Merge pull request #27418 from storybookjs/valentin/fix-aliased-named…

…-export-analysis CSF-Tools: Fix export specifier bug
storybookjs · May 29, 2024 · 3ad2f5f · 3ad2f5f
2 parents cf0af1a + dcf4a25
commit 3ad2f5f
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Showing 2 changed files with 19 additions and 3 deletions.
diff --git a/code/lib/csf-tools/src/ConfigFile.test.ts b/code/lib/csf-tools/src/ConfigFile.test.ts
@@ -216,7 +216,7 @@ describe('ConfigFile', () => {
           )
         ).toEqual([{ directory: '../src', titlePrefix: 'Demo' }]);
       });
-      it('export specfier', () => {
+      it('export specifier', () => {
         expect(
           getField(
             ['foo'],
@@ -227,6 +227,17 @@ describe('ConfigFile', () => {
           )
         ).toEqual('bar');
       });
+      it('export aliased specifier', () => {
+        expect(
+          getField(
+            ['fooAlias'],
+            dedent`
+              const foo = 'bar';
+              export { foo as fooAlias };
+            `
+          )
+        ).toEqual('bar');
+      });
     });
   });
 

diff --git a/code/lib/csf-tools/src/ConfigFile.ts b/code/lib/csf-tools/src/ConfigFile.ts
@@ -224,9 +224,14 @@ export class ConfigFile {
           } else if (node.specifiers) {
             // export { X };
             node.specifiers.forEach((spec) => {
-              if (t.isExportSpecifier(spec) && t.isIdentifier(spec.exported)) {
+              if (
+                t.isExportSpecifier(spec) &&
+                t.isIdentifier(spec.local) &&
+                t.isIdentifier(spec.exported)
+              ) {
+                const { name: localName } = spec.local;
                 const { name: exportName } = spec.exported;
-                const decl = _findVarDeclarator(exportName, parent as t.Program) as any;
+                const decl = _findVarDeclarator(localName, parent as t.Program) as any;
                 self._exports[exportName] = decl.init;
                 self._exportDecls[exportName] = decl;
               }