1 files changed, 9 insertions, 0 deletions
diff --git a/vendor/codeberg.org/gruf/go-iotools/close.go b/vendor/codeberg.org/gruf/go-iotools/close.go
index 3f0ee7780..f3d4814ba 100644
--- a/vendor/codeberg.org/gruf/go-iotools/close.go
+++ b/vendor/codeberg.org/gruf/go-iotools/close.go
@@ -2,6 +2,13 @@ package iotools
 
 import "io"
 
+// NopCloser is an empty
+// implementation of io.Closer,
+// that simply does nothing!
+type NopCloser struct{}
+
+func (NopCloser) Close() error { return nil }
+
 // CloserFunc is a function signature which allows
 // a function to implement the io.Closer type.
 type CloserFunc func() error
@@ -10,6 +17,7 @@ func (c CloserFunc) Close() error {
 	return c()
 }
 
+// CloserCallback wraps io.Closer to add a callback deferred to call just after Close().
 func CloserCallback(c io.Closer, cb func()) io.Closer {
 	return CloserFunc(func() error {
 		defer cb()
@@ -17,6 +25,7 @@ func CloserCallback(c io.Closer, cb func()) io.Closer {
 	})
 }
 
+// CloserAfterCallback wraps io.Closer to add a callback called just before Close().
 func CloserAfterCallback(c io.Closer, cb func()) io.Closer {
 	return CloserFunc(func() (err error) {
 		defer func() { err = c.Close() }()