fix: fix types for PackageJson exports (#185)

unjs · Jul 2, 2024 · 2f67cbc · 2f67cbc
1 parent cacfa8e
commit 2f67cbc
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Showing 2 changed files with 50 additions and 13 deletions.
diff --git a/src/types/packagejson.ts b/src/types/packagejson.ts
@@ -9,21 +9,27 @@ export type PackageJsonPerson =
       url?: string;
     };
 
+type PackageJsonExportKey =
+  | "."
+  | "import"
+  | "require"
+  | "types"
+  | "node"
+  | "browser"
+  | "default"
+  | (string & {}); // eslint-disable-line @typescript-eslint/ban-types
+
+type PackageJsonExportsObject = {
+  [P in PackageJsonExportKey]?:
+    | string
+    | PackageJsonExportsObject
+    | Array<string | PackageJsonExportsObject>;
+};
+
 export type PackageJsonExports =
   | string
-  | string[]
-  | {
-      [P in
-        | "."
-        | "import"
-        | "require"
-        | "types"
-        | "node"
-        | "browser"
-        | "default"
-        // eslint-disable-next-line @typescript-eslint/ban-types
-        | (string & {})]: PackageJsonExports;
-    };
+  | PackageJsonExportsObject
+  | Array<string | PackageJsonExportsObject>;
 
 export interface PackageJson {
   /**

diff --git a/test/types.test-d.ts b/test/types.test-d.ts
@@ -7,6 +7,37 @@ test("types", () => {
     {},
     { name: "foo" },
     { version: "1.0.0" },
+    // Exports field
     { exports: "./index.mjs" },
+    { exports: {} },
+    {
+      exports: {
+        ".": "./index.mjs",
+        "./feature": "./features/feature.mjs",
+      },
+    },
+    {
+      exports: {
+        node: {
+          import: "./node/index.mjs",
+          require: "./node/index.js",
+        },
+      },
+    },
+    {
+      exports: ["./a.mjs", "./a.d.ts"],
+    },
+    {
+      exports: {
+        ".": [
+          {
+            import: "./esm/index.js",
+            require: "./cjs/index.js",
+          },
+          "./fallback/index.js",
+        ],
+        "./feature": ["./features/feature.mjs", "./features/feature.js"],
+      },
+    },
   ]);
 });