ensure satisfaction

Signed-off-by: Jason Hall <[email protected]>

Author: imjasonh

pkg/name/digest.go

@@ -17,6 +17,7 @@ package name
 import (
 	// nolint: depguard
 	_ "crypto/sha256" // Recommended by go-digest.
+	"encoding"
 	"encoding/json"
 	"strings"
 
@@ -32,8 +33,11 @@ type Digest struct {
 	original string
 }
 
-// Ensure Digest implements Reference
 var _ Reference = (*Digest)(nil)
+var _ encoding.TextMarshaler = (*Digest)(nil)
+var _ encoding.TextUnmarshaler = (*Digest)(nil)
+var _ json.Marshaler = (*Digest)(nil)
+var _ json.Unmarshaler = (*Digest)(nil)
 
 // Context implements Reference.
 func (d Digest) Context() Repository {

pkg/name/registry.go

@@ -15,6 +15,7 @@
 package name
 
 import (
+	"encoding"
 	"encoding/json"
 	"net"
 	"net/url"
@@ -38,6 +39,11 @@ type Registry struct {
 	registry string
 }
 
+var _ encoding.TextMarshaler = (*Registry)(nil)
+var _ encoding.TextUnmarshaler = (*Registry)(nil)
+var _ json.Marshaler = (*Registry)(nil)
+var _ json.Unmarshaler = (*Registry)(nil)
+
 // RegistryStr returns the registry component of the Registry.
 func (r Registry) RegistryStr() string {
 	return r.registry

pkg/name/repository.go

@@ -15,6 +15,7 @@
 package name
 
 import (
+	"encoding"
 	"encoding/json"
 	"fmt"
 	"strings"
@@ -32,6 +33,11 @@ type Repository struct {
 	repository string
 }
 
+var _ encoding.TextMarshaler = (*Repository)(nil)
+var _ encoding.TextUnmarshaler = (*Repository)(nil)
+var _ json.Marshaler = (*Repository)(nil)
+var _ json.Unmarshaler = (*Repository)(nil)
+
 // See https://docs.docker.com/docker-hub/official_repos
 func hasImplicitNamespace(repo string, reg Registry) bool {
 	return !strings.ContainsRune(repo, '/') && reg.RegistryStr() == DefaultRegistry

pkg/name/tag.go

@@ -15,6 +15,7 @@
 package name
 
 import (
+	"encoding"
 	"encoding/json"
 	"strings"
 )
@@ -32,8 +33,11 @@ type Tag struct {
 	original string
 }
 
-// Ensure Tag implements Reference
 var _ Reference = (*Tag)(nil)
+var _ encoding.TextMarshaler = (*Tag)(nil)
+var _ encoding.TextUnmarshaler = (*Tag)(nil)
+var _ json.Marshaler = (*Tag)(nil)
+var _ json.Unmarshaler = (*Tag)(nil)
 
 // Context implements Reference.
 func (t Tag) Context() Repository {

pkg/v1/hash.go

@@ -16,6 +16,7 @@ package v1
 
 import (
 	"crypto"
+	"encoding"
 	"encoding/hex"
 	"encoding/json"
 	"fmt"
@@ -33,6 +34,11 @@ type Hash struct {
 	Hex string
 }
 
+var _ encoding.TextMarshaler = (*Hash)(nil)
+var _ encoding.TextUnmarshaler = (*Hash)(nil)
+var _ json.Marshaler = (*Hash)(nil)
+var _ json.Unmarshaler = (*Hash)(nil)
+
 // String reverses NewHash returning the string-form of the hash.
 func (h Hash) String() string {
 	return fmt.Sprintf("%s:%s", h.Algorithm, h.Hex)