Added ToLink and OnLink functions

Changes

2 changed files (+12/-0)

• helpers.go
  • @@ -4,6 +4,7 @@ import (
    "fmt" ) + type withLinkFn func (*Link) error type withObjectFn func (*Object) error type withActivityFn func (*Activity) error type withIntransitiveActivityFn func (*IntransitiveActivity) error
• object.go
  • @@ -311,6 +311,17 @@ func (m MimeType) MarshalJSON() ([]byte, error) {
    return b, nil } + // ToLink returns a Link pointer to the data in the current Item + func ToLink(it Item) (*Link, error) { + switch i := it.(type) { + case *Link: + return i, nil + case Link: + return &i, nil + } + return nil, fmt.Errorf("unable to convert %q", it.GetType()) + } + // ToObject returns an Object pointer to the data in the current Item // It relies on the fact that all the types in this package have a data layout compatible with Object. func ToObject(it Item) (*Object, error) {