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node_modules/style-resources-loader/src/loader.ts

@@ -0,0 +1,22 @@
+import {errorMessage, isFunction, loadResources} from './utils';
+
+import type {Loader, LoaderCallback} from '.';
+
+const loader: Loader = function (source) {
+    this.cacheable();
+
+    const callback = this.async();
+
+    if (!isFunction<LoaderCallback>(callback)) {
+        throw new Error(errorMessage.syncCompilation);
+    }
+
+    /* istanbul ignore if: not possible to test */
+    if (typeof source !== 'string') {
+        throw new Error(errorMessage.impossible);
+    }
+
+    void loadResources(this, source, callback);
+};
+
+export default loader;