Add interface guards

caddyserver · Sep 7, 2022 · d643844 · d643844
1 parent d59267f
commit d643844
Showing 1 changed file with 6 additions and 0 deletions.
diff --git a/modules/caddyhttp/responsewriter.go b/modules/caddyhttp/responsewriter.go
@@ -278,4 +278,10 @@ type ShouldBufferFunc func(status int, header http.Header) bool
 var (
 	_ HTTPInterfaces   = (*ResponseWriterWrapper)(nil)
 	_ ResponseRecorder = (*responseRecorder)(nil)
+
+	// Implementing ReaderFrom can be such a significant
+	// optimization that it should probably be required!
+	// see PR #5022 (25%-50% speedup)
+	_ io.ReaderFrom = (*ResponseWriterWrapper)(nil)
+	_ io.ReaderFrom = (*responseRecorder)(nil)
 )