refactor: drop redundant embedded field selectors

Satisfies staticcheck QF1008.

pkg/cookie/cookie.go

@@ -29,14 +29,14 @@ type Cookie struct {
 }
 
 func (in *Cookie) Encrypt(crypter crypto.Crypter) (*Cookie, error) {
-	plaintext := []byte(in.Cookie.Value)
+	plaintext := []byte(in.Value)
 	ciphertext, err := crypter.Encrypt(plaintext)
 	if err != nil {
-		return nil, fmt.Errorf("unable to encrypt cookie '%s': %w", in.Cookie.Name, err)
+		return nil, fmt.Errorf("unable to encrypt cookie '%s': %w", in.Name, err)
 	}
 
 	value := base64.RawURLEncoding.EncodeToString(ciphertext)
-	in.Cookie.Value = value
+	in.Value = value
 	return in, nil
 }
 

pkg/mock/client.go

@@ -17,7 +17,7 @@ type TestClientConfiguration struct {
 var _ openidconfig.Client = (*TestClientConfiguration)(nil)
 
 func (c *TestClientConfiguration) ACRValues() string {
-	return c.Config.OpenID.ACRValues
+	return c.OpenID.ACRValues
 }
 
 func (c *TestClientConfiguration) Audiences() map[string]bool {
@@ -29,7 +29,7 @@ func (c *TestClientConfiguration) AuthMethod() openidconfig.AuthMethod {
 }
 
 func (c *TestClientConfiguration) ClientID() string {
-	return c.Config.OpenID.ClientID
+	return c.OpenID.ClientID
 }
 
 func (c *TestClientConfiguration) ClientJWK() jwk.Key {
@@ -37,39 +37,39 @@ func (c *TestClientConfiguration) ClientJWK() jwk.Key {
 }
 
 func (c *TestClientConfiguration) ClientSecret() string {
-	return c.Config.OpenID.ClientSecret
+	return c.OpenID.ClientSecret
 }
 
 func (c *TestClientConfiguration) DomainHint() string {
-	return c.Config.OpenID.DomainHint
+	return c.OpenID.DomainHint
 }
 
 func (c *TestClientConfiguration) NewClientAuthJWTType() bool {
-	return c.Config.OpenID.NewClientAuthJWTType
+	return c.OpenID.NewClientAuthJWTType
 }
 
 func (c *TestClientConfiguration) SetPostLogoutRedirectURI(uri string) {
-	c.Config.OpenID.PostLogoutRedirectURI = uri
+	c.OpenID.PostLogoutRedirectURI = uri
 }
 
 func (c *TestClientConfiguration) PostLogoutRedirectURI() string {
-	return c.Config.OpenID.PostLogoutRedirectURI
+	return c.OpenID.PostLogoutRedirectURI
 }
 
 func (c *TestClientConfiguration) ResourceIndicator() string {
-	return c.Config.OpenID.ResourceIndicator
+	return c.OpenID.ResourceIndicator
 }
 
 func (c *TestClientConfiguration) Scopes() scopes.Scopes {
-	return scopes.DefaultScopes().WithAdditional(c.Config.OpenID.Scopes...)
+	return scopes.DefaultScopes().WithAdditional(c.OpenID.Scopes...)
 }
 
 func (c *TestClientConfiguration) UILocales() string {
-	return c.Config.OpenID.UILocales
+	return c.OpenID.UILocales
 }
 
 func (c *TestClientConfiguration) WellKnownURL() string {
-	return c.Config.OpenID.WellKnownURL
+	return c.OpenID.WellKnownURL
 }
 
 func clientConfiguration(cfg *config.Config) *TestClientConfiguration {

pkg/openid/tokens.go

@@ -212,7 +212,7 @@ func (in *IDToken) Claim(claim string) (any, error) {
 	}
 
 	var gotClaim any
-	if err := in.Token.Get(claim, &gotClaim); err != nil {
+	if err := in.Get(claim, &gotClaim); err != nil {
 		return nil, fmt.Errorf("missing required '%s' claim in id_token: %w", claim, err)
 	}