opentofu/internal/states/instance_generation.go
Martin Atkins f40800b3a4 Move states/ to internal/states/
This is part of a general effort to move all of Terraform's non-library
package surface under internal in order to reinforce that these are for
internal use within Terraform only.

If you were previously importing packages under this prefix into an
external codebase, you could pin to an earlier release tag as an interim
solution until you've make a plan to achieve the same functionality some
other way.
2021-05-17 14:09:07 -07:00

21 lines
865 B
Go

package states
// Generation is used to represent multiple objects in a succession of objects
// represented by a single resource instance address. A resource instance can
// have multiple generations over its lifetime due to object replacement
// (when a change can't be applied without destroying and re-creating), and
// multiple generations can exist at the same time when create_before_destroy
// is used.
//
// A Generation value can either be the value of the variable "CurrentGen" or
// a value of type DeposedKey. Generation values can be compared for equality
// using "==" and used as map keys. The zero value of Generation (nil) is not
// a valid generation and must not be used.
type Generation interface {
generation()
}
// CurrentGen is the Generation representing the currently-active object for
// a resource instance.
var CurrentGen Generation