fix: wrap generated require() calls in a promise

Author: njoyard

babel-plugin-import-meta-glob/index.js

@@ -54,16 +54,30 @@ function ImportMetaGlobPlugin ({ types: t }) {
   }
 
   const transformLazyImportMetaGlob = (path, files, useImport) => {
-    const functionIdentifier = useImport ? 'import' : 'require';
+    const importedModule = useImport
+      ? t.callExpression(
+          t.identifier('import'),
+          [t.stringLiteral(file)]
+        )
+      : t.callExpression(
+          t.memberExpression(
+            t.identifier('Promise'),
+            t.identifier('resolve')
+          ),
+          [
+            t.callExpression(
+              t.identifier('require'),
+              [t.stringLiteral(file)]
+            )
+          ]
+        );
+
     const newObjectProperties = files.map((file) => {
       return t.objectProperty(
         t.stringLiteral(file),
         t.arrowFunctionExpression(
           [],
-          t.callExpression(
-            t.identifier(functionIdentifier),
-            [t.stringLiteral(file)]
-          )
+          importedModule
         )
       );
     });

babel-plugin-import-meta-glob/tests/lazy-import.test.js

@@ -10,8 +10,8 @@ test('it transforms import.meta.glob to lazy import', () => {
   });
   expect(output.code).toMatchInlineSnapshot(`
     "const modules = {
-      "tests/fixtures/_fixture-b": () => require("tests/fixtures/_fixture-b"),
-      "tests/fixtures/_fixture-a": () => require("tests/fixtures/_fixture-a")
+      "tests/fixtures/_fixture-b": () => Promise.resolve(require("tests/fixtures/_fixture-b")),
+      "tests/fixtures/_fixture-a": () => Promise.resolve(require("tests/fixtures/_fixture-a"))
     };"
   `);
 })