gap: switch to use MACAddress struct when possible for shared implementation

Signed-off-by: Ron Evans <ron@hybridgroup.com>

gap.go

@@ -11,6 +11,28 @@ var (
 	errAdvertisementPacketTooBig = errors.New("bluetooth: advertisement packet overflows")
 )
 
+// MACAddress contains a Bluetooth address which is a MAC address.
+type MACAddress struct {
+	// MAC address of the Bluetooth device.
+	MAC
+	isRandom bool
+}
+
+// IsRandom if the address is randomly created.
+func (mac MACAddress) IsRandom() bool {
+	return mac.isRandom
+}
+
+// SetRandom if is a random address.
+func (mac MACAddress) SetRandom(val bool) {
+	mac.isRandom = val
+}
+
+// Set the address
+func (mac MACAddress) Set(val interface{}) {
+	mac.MAC = val.(MAC)
+}
+
 // AdvertisementOptions configures an advertisement instance. More options may
 // be added over time.
 type AdvertisementOptions struct {

gap_darwin.go

@@ -8,8 +8,7 @@ import (
 	"github.com/JuulLabs-OSS/cbgo"
 )
 
-// Address contains a Bluetooth address, which on macOS instead of a MAC address
-// is instead a UUID.
+// Address contains a Bluetooth address which on macOS is a UUID.
 type Address struct {
 	// UUID since this is macOS.
 	UUID

gap_linux.go

@@ -11,27 +11,9 @@ import (
 	"github.com/muka/go-bluetooth/bluez/profile/device"
 )
 
-// Address contains a Bluetooth address, which is a MAC address plus some extra
-// information.
+// Address contains a Bluetooth MAC address.
 type Address struct {
-	// The MAC address of a Bluetooth device.
-	MAC
-	isRandom bool
-}
-
-// IsRandom if the address is randomly created.
-func (ad Address) IsRandom() bool {
-	return ad.isRandom
-}
-
-// SetRandom if is a random address.
-func (ad Address) SetRandom(val bool) {
-	ad.isRandom = val
-}
-
-// Set the address
-func (ad Address) Set(val interface{}) {
-	ad.MAC = val.(MAC)
+	MACAddress
 }
 
 // Advertisement encapsulates a single advertisement instance.
@@ -237,12 +219,13 @@ func makeScanResult(props *device.Device1Properties) ScanResult {
 		serviceUUIDs = append(serviceUUIDs, parsedUUID)
 	}
 
+	a := Address{}
+	a.Set(addr)
+	a.SetRandom(props.AddressType == "random")
+
 	return ScanResult{
-		RSSI: props.RSSI,
-		Address: Address{
-			MAC:      addr,
-			isRandom: props.AddressType == "random",
-		},
+		RSSI:    props.RSSI,
+		Address: a,
 		AdvertisementPayload: &advertisementFields{
 			AdvertisementFields{
 				LocalName:    props.Name,

gap_nrf51.go

@@ -16,27 +16,9 @@ import (
 	"time"
 )
 
-// Address contains a Bluetooth address, which is a MAC address plus some extra
-// information.
+// Address contains a Bluetooth MAC address.
 type Address struct {
-	// The MAC address of a Bluetooth device.
-	MAC
-	isRandom bool
-}
-
-// IsRandom if the address is randomly created.
-func (ad Address) IsRandom() bool {
-	return ad.isRandom
-}
-
-// SetRandom if is a random address.
-func (ad Address) SetRandom(val bool) {
-	ad.isRandom = val
-}
-
-// Set the address
-func (ad Address) Set(val interface{}) {
-	ad.MAC = val.(MAC)
+	MACAddress
 }
 
 // Advertisement encapsulates a single advertisement instance.

gap_nrf528xx.go

@@ -27,27 +27,9 @@ var (
 	globalScanResult ScanResult
 )
 
-// Address contains a Bluetooth address, which is a MAC address plus some extra
-// information.
+// Address contains a Bluetooth MAC address.
 type Address struct {
-	// The MAC address of a Bluetooth device.
-	MAC
-	isRandom bool
-}
-
-// IsRandom if the address is randomly created.
-func (ad Address) IsRandom() bool {
-	return ad.isRandom
-}
-
-// SetRandom if is a random address.
-func (ad Address) SetRandom(val bool) {
-	ad.isRandom = val
-}
-
-// Set the address
-func (ad Address) Set(val interface{}) {
-	ad.MAC = val.(MAC)
+	MACAddress
 }
 
 // Advertisement encapsulates a single advertisement instance.

gap_windows.go

@@ -4,27 +4,9 @@ import (
 	"github.com/tinygo-org/bluetooth/winbt"
 )
 
-// Address contains a Bluetooth address, which is a MAC address plus some extra
-// information.
+// Address contains a Bluetooth MAC address.
 type Address struct {
-	// The MAC address of a Bluetooth device.
-	MAC
-	isRandom bool
-}
-
-// IsRandom if the address is randomly created.
-func (ad Address) IsRandom() bool {
-	return ad.isRandom
-}
-
-// SetRandom if is a random address.
-func (ad Address) SetRandom(val bool) {
-	ad.isRandom = val
-}
-
-// Set the address
-func (ad Address) Set(val interface{}) {
-	ad.MAC = val.(MAC)
+	MACAddress
 }
 
 // Scan starts a BLE scan. It is stopped by a call to StopScan. A common pattern