lib/ini: mention that marshaling []byte does not supported

Due to "byte" is considered as "uint8" during reflection, we cannot tell
whether the value is slice of byte of slice of number with type uint8.

2 files changed, 4 insertions, 0 deletions

diff --git a/lib/ini/doc.go b/lib/ini/doc.go
index d058f094..3c4bc4dd 100644
--- a/lib/ini/doc.go
+++ b/lib/ini/doc.go
@@ -139,6 +139,8 @@ A double quote is escaped using triple backslash, for example `\\\"`.
 
 If the field type is slice of primitive, for example "[]int", it will be
 marshaled into multiple key with the same name.
+Note that, marshaling "[]byte" does not supported, due to ambiguity between
+"byte" and "uint8" during reflection.
 
 If the field type is struct, it will marshaled as new section and/or
 subsection based on tag on the struct field
diff --git a/lib/ini/ini.go b/lib/ini/ini.go
index c233b892..7bab0039 100644
--- a/lib/ini/ini.go
+++ b/lib/ini/ini.go
@@ -104,6 +104,8 @@ func Parse(text []byte) (in *Ini, err error) {
 // field's name.
 //
 // An array or slice will be encoded as multiple keys.
+// Marshaling "[]byte" does not supported, due to ambiguity between
+// "byte" and "uint8" during reflection.
 //
 // One exception to above rule is map type.
 // A map's key will override the key defined in tag.