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fs: Formalize the ObjectUnWrapper interface

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This commit is contained in:
Nick Craig-Wood 2018-01-31 14:22:49 +00:00
parent b3d8b7e22e
commit 2eb5cfb7ad
2 changed files with 20 additions and 12 deletions
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25
backend/crypt/crypt.go
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@ -662,16 +662,17 @@ func (o *ObjectInfo) Hash(hash hash.Type) (string, error) {
// Check the interfaces are satisfied
var (
_ fs.Fs = (*Fs)(nil)
_ fs.Purger = (*Fs)(nil)
_ fs.Copier = (*Fs)(nil)
_ fs.Mover = (*Fs)(nil)
_ fs.DirMover = (*Fs)(nil)
_ fs.PutUncheckeder = (*Fs)(nil)
_ fs.PutStreamer = (*Fs)(nil)
_ fs.CleanUpper = (*Fs)(nil)
_ fs.UnWrapper = (*Fs)(nil)
_ fs.ListRer = (*Fs)(nil)
_ fs.ObjectInfo = (*ObjectInfo)(nil)
_ fs.Object = (*Object)(nil)
_ fs.Fs = (*Fs)(nil)
_ fs.Purger = (*Fs)(nil)
_ fs.Copier = (*Fs)(nil)
_ fs.Mover = (*Fs)(nil)
_ fs.DirMover = (*Fs)(nil)
_ fs.PutUncheckeder = (*Fs)(nil)
_ fs.PutStreamer = (*Fs)(nil)
_ fs.CleanUpper = (*Fs)(nil)
_ fs.UnWrapper = (*Fs)(nil)
_ fs.ListRer = (*Fs)(nil)
_ fs.ObjectInfo = (*ObjectInfo)(nil)
_ fs.Object = (*Object)(nil)
_ fs.ObjectUnWrapper = (*Object)(nil)
)

7
fs/fs.go
View File

@ -237,6 +237,13 @@ type MimeTyper interface {
MimeType() string
}
// ObjectUnWrapper is an optional interface for Object
type ObjectUnWrapper interface {
// UnWrap returns the Object that this Object is wrapping or
// nil if it isn't wrapping anything
UnWrap() Object
}
// ListRCallback defines a callback function for ListR to use
//
// It is called for each tranche of entries read from the listing and