packer-cn/hcl2template/addrs/referenceable.go

23 lines
753 B
Go

package addrs
// Referenceable is an interface implemented by all address types that can
// appear as references in configuration language expressions.
type Referenceable interface {
// referenceableSigil is private to ensure that all Referenceables are
// implentented in this current package. For now this does nothing.
referenceableSigil()
// String produces a string representation of the address that could be
// parsed as a HCL traversal and passed to ParseRef to produce an identical
// result.
String() string
}
// referenceable is an empty struct that implements Referenceable, add it to
// your Referenceable struct so that it can be recognized as such.
type referenceable struct {
}
func (r referenceable) referenceableSigil() {
}