Invoke String/Error methods on addressable vals.

If a type implements a Stringer or error interface with a pointer receiver
and the value being formatted is addressable, the interface should be
invoked even when the DisablePointerMethods option is set.
DisablePointerMethods is only intended to prevent the potentially unsafe
action of stepping around type-safety restriction to invoke a Stringer or
error interface with a pointer to an unaddressable value.

1 files changed, 3 insertions, 0 deletions

diff --git a/spew/common.go b/spew/common.go
index 945b0b0..6b8bfec 100644
--- a/spew/common.go
+++ b/spew/common.go
@@ -140,6 +140,9 @@ func handleMethods(cs *ConfigState, w io.Writer, v reflect.Value) (handled bool)
 		}
 		viface = v.Addr().Interface()
 	} else {
+		if v.CanAddr() {
+			v = v.Addr()
+		}
 		viface = v.Interface()
 	}