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Pull in UUID conversion from parent #1

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Pull in UUID conversion from parent #1

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15 changes: 5 additions & 10 deletions Adafruit_BluefruitLE/corebluetooth/objc_helpers.py
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Original file line number Diff line number Diff line change
Expand Up @@ -21,7 +21,7 @@
# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
# SOFTWARE.
import uuid

from binascii import hexlify
import objc


Expand All @@ -33,15 +33,10 @@
def cbuuid_to_uuid(cbuuid):
"""Convert Objective-C CBUUID type to native Python UUID type."""
data = cbuuid.data().bytes()
if len(data) == 2:
# Short 16-bit UUID
return uuid.UUID(bytes='\x00\x00{0}{1}\x00\x00\x10\x00\x80\x00\x00\x80\x5F\x9B\x34\xFB'.format(data[0], data[1]))
elif len(data) == 4:
# Short 32-bit UUID
return uuid.UUID(bytes='{0}{1}{2}{3}\x00\x00\x10\x00\x80\x00\x00\x80\x5F\x9B\x34\xFB'.format(data[0], data[1], data[2], data[3]))
else:
# Full 128-bit UUID
return uuid.UUID(bytes=data)
template = '{:0>8}-0000-1000-8000-00805f9b34fb' if len(data) <= 4 else '{:0>32}'
value = template.format(hexlify(data.tobytes()[:16]).decode('ascii'))
return uuid.UUID(hex=value)



def uuid_to_cbuuid(uuid):
Expand Down