provide StaticResponseFactory: to make custom response for ConsumeErr…

… easy

in future we might also want to allow a response function, but
for now not needed. Open to feature requests or
PRs for it

src/http/response/into_response.rs

@@ -28,6 +28,30 @@ pub trait IntoResponse {
     fn into_response(self) -> Response;
 }
 
+/// Wrapper that can be used to turn an `IntoResponse` type into
+/// something that implements Into<Response>.
+pub struct StaticResponseFactory<T>(pub T);
+
+impl<T: IntoResponse> From<StaticResponseFactory<T>> for Response {
+    fn from(value: StaticResponseFactory<T>) -> Self {
+        value.0.into_response()
+    }
+}
+
+impl<T: fmt::Debug> fmt::Debug for StaticResponseFactory<T> {
+    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
+        f.debug_tuple("StaticResponseFactory")
+            .field(&self.0)
+            .finish()
+    }
+}
+
+impl<T: Clone> Clone for StaticResponseFactory<T> {
+    fn clone(&self) -> Self {
+        Self(self.0.clone())
+    }
+}
+
 impl IntoResponse for StatusCode {
     fn into_response(self) -> Response {
         let mut res = ().into_response();