1 files changed, 26 insertions, 0 deletions
diff --git a/node_modules/rxjs/src/internal/util/NotFoundError.ts b/node_modules/rxjs/src/internal/util/NotFoundError.ts
new file mode 100644
index 0000000..ecd213f
--- /dev/null
+++ b/node_modules/rxjs/src/internal/util/NotFoundError.ts
@@ -0,0 +1,26 @@
+import { createErrorClass } from './createErrorClass';
+
+export interface NotFoundError extends Error {}
+
+export interface NotFoundErrorCtor {
+  /**
+   * @deprecated Internal implementation detail. Do not construct error instances.
+   * Cannot be tagged as internal: https://github.com/ReactiveX/rxjs/issues/6269
+   */
+  new (message: string): NotFoundError;
+}
+
+/**
+ * An error thrown when a value or values are missing from an
+ * observable sequence.
+ *
+ * @see {@link operators/single}
+ */
+export const NotFoundError: NotFoundErrorCtor = createErrorClass(
+  (_super) =>
+    function NotFoundErrorImpl(this: any, message: string) {
+      _super(this);
+      this.name = 'NotFoundError';
+      this.message = message;
+    }
+);