feat(findExports): extract name of default exports (#179)

Co-authored-by: Pooya Parsa <pooya@pi0.io>
unjs · Jan 11, 2024 · 5213717 · 5213717
1 parent d212da8
commit 5213717
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Showing 2 changed files with 11 additions and 1 deletion.
diff --git a/src/analyze.ts b/src/analyze.ts
@@ -80,7 +80,8 @@ const EXPORT_NAMED_DESTRUCT =
   /\bexport\s+(let|var|const)\s+(?:{(?<exports1>[^}]+?)[\s,]*}|\[(?<exports2>[^\]]+?)[\s,]*])\s+=/gm;
 const EXPORT_STAR_RE =
   /\bexport\s*(\*)(\s*as\s+(?<name>[\w$]+)\s+)?\s*(\s*from\s*["']\s*(?<specifier>(?<="\s*)[^"]*[^\s"](?=\s*")|(?<='\s*)[^']*[^\s'](?=\s*'))\s*["'][^\n;]*)?/g;
-const EXPORT_DEFAULT_RE = /\bexport\s+default\s+/g;
+const EXPORT_DEFAULT_RE =
+  /\bexport\s+default\s+(async function|function|class|true|false|\W|\d)|\bexport\s+default\s+(?<defaultName>.*)/g;
 const TYPE_RE = /^\s*?type\s/;
 
 export function findStaticImports(code: string): StaticImport[] {

diff --git a/test/exports.test.ts b/test/exports.test.ts
@@ -53,6 +53,12 @@ describe("findExports", () => {
     "export async function* foo ()": { type: "declaration", names: ["foo"] },
     "export async function *foo ()": { type: "declaration", names: ["foo"] },
     "export const $foo = () => {}": { type: "declaration", names: ["$foo"] },
+    "export default something": {
+      type: "default",
+      name: "default",
+      defaultName: "something",
+      names: ["default"],
+    },
     "export { foo as default }": {
       type: "default",
       name: "default",
@@ -95,6 +101,9 @@ describe("findExports", () => {
       if (test.specifier) {
         expect(match.specifier).toEqual(test.specifier);
       }
+      if (test.defaultName) {
+        expect(match.defaultName).toEqual(test.defaultName);
+      }
     });
   }
   it("handles multiple exports", () => {