client: Fix error checking for go 1.18-19

Should be reverted/updated when minimum version of Go will be set to 1.20

Signed-off-by: Evgenii Baidakov <evgenii@nspcc.io>

client/status/common.go

@@ -45,7 +45,7 @@ func (x ServerInternal) Error() string {
 func (x ServerInternal) Is(target error) bool {
 	switch target.(type) {
 	default:
-		return false
+		return errors.Is(Error, target)
 	case ServerInternal, *ServerInternal:
 		return true
 	}
@@ -103,7 +103,7 @@ func (x WrongMagicNumber) Error() string {
 func (x WrongMagicNumber) Is(target error) bool {
 	switch target.(type) {
 	default:
-		return false
+		return errors.Is(Error, target)
 	case WrongMagicNumber, *WrongMagicNumber:
 		return true
 	}
@@ -188,7 +188,7 @@ func (x SignatureVerification) Error() string {
 func (x SignatureVerification) Is(target error) bool {
 	switch target.(type) {
 	default:
-		return false
+		return errors.Is(Error, target)
 	case SignatureVerification, *SignatureVerification:
 		return true
 	}
@@ -257,7 +257,7 @@ func (x NodeUnderMaintenance) Error() string {
 func (x NodeUnderMaintenance) Is(target error) bool {
 	switch target.(type) {
 	default:
-		return false
+		return errors.Is(Error, target)
 	case NodeUnderMaintenance, *NodeUnderMaintenance:
 		return true
 	}

client/status/container.go

@@ -1,6 +1,8 @@
 package apistatus
 
 import (
+	"errors"
+
 	"github.com/nspcc-dev/neofs-api-go/v2/container"
 	"github.com/nspcc-dev/neofs-api-go/v2/status"
 )
@@ -38,7 +40,7 @@ func (x ContainerNotFound) Error() string {
 func (x ContainerNotFound) Is(target error) bool {
 	switch target.(type) {
 	default:
-		return false
+		return errors.Is(Error, target)
 	case ContainerNotFound, *ContainerNotFound:
 		return true
 	}
@@ -86,7 +88,7 @@ func (x EACLNotFound) Error() string {
 func (x EACLNotFound) Is(target error) bool {
 	switch target.(type) {
 	default:
-		return false
+		return errors.Is(Error, target)
 	case EACLNotFound, *EACLNotFound:
 		return true
 	}

client/status/object.go

@@ -1,6 +1,8 @@
 package apistatus
 
 import (
+	"errors"
+
 	"github.com/nspcc-dev/neofs-api-go/v2/object"
 	"github.com/nspcc-dev/neofs-api-go/v2/status"
 )
@@ -50,7 +52,7 @@ func (x ObjectLocked) Error() string {
 func (x ObjectLocked) Is(target error) bool {
 	switch target.(type) {
 	default:
-		return false
+		return errors.Is(Error, target)
 	case ObjectLocked, *ObjectLocked:
 		return true
 	}
@@ -97,7 +99,7 @@ func (x LockNonRegularObject) Error() string {
 func (x LockNonRegularObject) Is(target error) bool {
 	switch target.(type) {
 	default:
-		return false
+		return errors.Is(Error, target)
 	case LockNonRegularObject, *LockNonRegularObject:
 		return true
 	}
@@ -144,7 +146,7 @@ func (x ObjectAccessDenied) Error() string {
 func (x ObjectAccessDenied) Is(target error) bool {
 	switch target.(type) {
 	default:
-		return false
+		return errors.Is(Error, target)
 	case ObjectAccessDenied, *ObjectAccessDenied:
 		return true
 	}
@@ -202,7 +204,7 @@ func (x ObjectNotFound) Error() string {
 func (x ObjectNotFound) Is(target error) bool {
 	switch target.(type) {
 	default:
-		return false
+		return errors.Is(Error, target)
 	case ObjectNotFound, *ObjectNotFound:
 		return true
 	}
@@ -249,7 +251,7 @@ func (x ObjectAlreadyRemoved) Error() string {
 func (x ObjectAlreadyRemoved) Is(target error) bool {
 	switch target.(type) {
 	default:
-		return false
+		return errors.Is(Error, target)
 	case ObjectAlreadyRemoved, *ObjectAlreadyRemoved:
 		return true
 	}
@@ -297,7 +299,7 @@ func (x ObjectOutOfRange) Error() string {
 func (x ObjectOutOfRange) Is(target error) bool {
 	switch target.(type) {
 	default:
-		return false
+		return errors.Is(Error, target)
 	case ObjectOutOfRange, *ObjectOutOfRange:
 		return true
 	}

client/status/session.go

@@ -1,6 +1,8 @@
 package apistatus
 
 import (
+	"errors"
+
 	"github.com/nspcc-dev/neofs-api-go/v2/session"
 	"github.com/nspcc-dev/neofs-api-go/v2/status"
 )
@@ -38,7 +40,7 @@ func (x SessionTokenNotFound) Error() string {
 func (x SessionTokenNotFound) Is(target error) bool {
 	switch target.(type) {
 	default:
-		return false
+		return errors.Is(Error, target)
 	case SessionTokenNotFound, *SessionTokenNotFound:
 		return true
 	}
@@ -85,7 +87,7 @@ func (x SessionTokenExpired) Error() string {
 func (x SessionTokenExpired) Is(target error) bool {
 	switch target.(type) {
 	default:
-		return false
+		return errors.Is(Error, target)
 	case SessionTokenExpired, *SessionTokenExpired:
 		return true
 	}

client/status/status.go

@@ -1,9 +1,5 @@
 package apistatus
 
-import (
-	"errors"
-)
-
 // Status defines a variety of NeoFS API status returns.
 //
 // All statuses are split into two disjoint subsets: successful and failed, and:
@@ -26,7 +22,7 @@ type Status any
 // Note: direct assignment may not be compatibility-safe.
 func ErrFromStatus(st Status) error {
 	if err, ok := st.(error); ok {
-		return errors.Join(Error, err)
+		return err
 	}
 
 	return nil