Version 0.8.0

Example/Podfile.lock

@@ -1,5 +1,5 @@
 PODS:
-  - xDripG5 (0.7.0)
+  - xDripG5 (0.8.0)
 
 DEPENDENCIES:
   - xDripG5 (from `../`)
@@ -9,8 +9,8 @@ EXTERNAL SOURCES:
     :path: ../
 
 SPEC CHECKSUMS:
-  xDripG5: b0bfa28e1dc510799d919ab6a67badb56a024247
+  xDripG5: 8779a4f495fd8eb81a3d75457afe9b95fb52f61d
 
 PODFILE CHECKSUM: 6b30cba971694d5258509315fb52eb645c9bc5e3
 
-COCOAPODS: 1.1.0.beta.2
+COCOAPODS: 1.1.0.rc.2

Example/xDripG5.xcodeproj/project.pbxproj

@@ -8,6 +8,7 @@
 
 /* Begin PBXBuildFile section */
 		06C991A3D94948120AD2A278 /* Pods_xDripG5_Example.framework in Frameworks */ = {isa = PBXBuildFile; fileRef = 42011659993839B43D24C553 /* Pods_xDripG5_Example.framework */; };
+		43846AC21D8F812A00799272 /* Data.swift in Sources */ = {isa = PBXBuildFile; fileRef = 43846AC11D8F812A00799272 /* Data.swift */; };
 		439FCA211C332AA4007DE84C /* LaunchScreen.storyboard in Resources */ = {isa = PBXBuildFile; fileRef = 439FCA1F1C332AA4007DE84C /* LaunchScreen.storyboard */; };
 		439FCA231C332AE5007DE84C /* NSUserDefaults.swift in Sources */ = {isa = PBXBuildFile; fileRef = 439FCA221C332AE5007DE84C /* NSUserDefaults.swift */; };
 		43E3979F1D569B340028E321 /* HKUnit.swift in Sources */ = {isa = PBXBuildFile; fileRef = 43E3979E1D569B340028E321 /* HKUnit.swift */; };
@@ -19,6 +20,7 @@
 
 /* Begin PBXFileReference section */
 		42011659993839B43D24C553 /* Pods_xDripG5_Example.framework */ = {isa = PBXFileReference; explicitFileType = wrapper.framework; includeInIndex = 0; path = Pods_xDripG5_Example.framework; sourceTree = BUILT_PRODUCTS_DIR; };
+		43846AC11D8F812A00799272 /* Data.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = Data.swift; sourceTree = "<group>"; };
 		439FCA201C332AA4007DE84C /* Base */ = {isa = PBXFileReference; lastKnownFileType = file.storyboard; name = Base; path = Base.lproj/LaunchScreen.storyboard; sourceTree = "<group>"; };
 		439FCA221C332AE5007DE84C /* NSUserDefaults.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = NSUserDefaults.swift; sourceTree = "<group>"; };
 		43E3979E1D569B340028E321 /* HKUnit.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; name = HKUnit.swift; path = ../../xDripG5/HKUnit.swift; sourceTree = "<group>"; };
@@ -78,6 +80,7 @@
 			isa = PBXGroup;
 			children = (
 				607FACD51AFB9204008FA782 /* AppDelegate.swift */,
+				43846AC11D8F812A00799272 /* Data.swift */,
 				43E3979E1D569B340028E321 /* HKUnit.swift */,
 				439FCA221C332AE5007DE84C /* NSUserDefaults.swift */,
 				607FACD71AFB9204008FA782 /* ViewController.swift */,
@@ -246,6 +249,7 @@
 			buildActionMask = 2147483647;
 			files = (
 				607FACD81AFB9204008FA782 /* ViewController.swift in Sources */,
+				43846AC21D8F812A00799272 /* Data.swift in Sources */,
 				607FACD61AFB9204008FA782 /* AppDelegate.swift in Sources */,
 				43E3979F1D569B340028E321 /* HKUnit.swift in Sources */,
 				439FCA231C332AE5007DE84C /* NSUserDefaults.swift in Sources */,
@@ -365,7 +369,6 @@
 			isa = XCBuildConfiguration;
 			baseConfigurationReference = F3147B948B4F90A741304461 /* Pods-xDripG5_Example.debug.xcconfig */;
 			buildSettings = {
-				ALWAYS_EMBED_SWIFT_STANDARD_LIBRARIES = YES;
 				ASSETCATALOG_COMPILER_APPICON_NAME = AppIcon;
 				INFOPLIST_FILE = xDripG5/Info.plist;
 				LD_RUNPATH_SEARCH_PATHS = "$(inherited) @executable_path/Frameworks";
@@ -381,7 +384,6 @@
 			isa = XCBuildConfiguration;
 			baseConfigurationReference = CFBD776BFE02F42998A8820B /* Pods-xDripG5_Example.release.xcconfig */;
 			buildSettings = {
-				ALWAYS_EMBED_SWIFT_STANDARD_LIBRARIES = YES;
 				ASSETCATALOG_COMPILER_APPICON_NAME = AppIcon;
 				INFOPLIST_FILE = xDripG5/Info.plist;
 				LD_RUNPATH_SEARCH_PATHS = "$(inherited) @executable_path/Frameworks";

Example/xDripG5/AppDelegate.swift

@@ -87,4 +87,12 @@ class AppDelegate: UIResponder, UIApplicationDelegate, TransmitterDelegate {
             }
         }
     }
+
+    func transmitter(_ transmitter: Transmitter, didReadUnknownData data: Data) {
+        if let vc = window?.rootViewController as? TransmitterDelegate {
+            DispatchQueue.main.async {
+                vc.transmitter(transmitter, didReadUnknownData: data)
+            }
+        }
+    }
 }

Example/xDripG5/Data.swift

@@ -0,0 +1,22 @@
+//
+//  Data.swift
+//  xDripG5
+//
+//  Created by Nate Racklyeft on 9/18/16.
+//  Copyright © 2016 Nathan Racklyeft. All rights reserved.
+//
+
+import Foundation
+
+
+extension Data {
+    var hexadecimalString: String {
+        let string = NSMutableString(capacity: count * 2)
+
+        for byte in self {
+            string.appendFormat("%02x", byte)
+        }
+
+        return string as String
+    }
+}

Example/xDripG5/ViewController.swift

@@ -119,6 +119,11 @@ class ViewController: UIViewController, TransmitterDelegate, UITextFieldDelegate
         let date = glucose.readDate
         subtitleLabel.text = DateFormatter.localizedString(from: date, dateStyle: .none, timeStyle: .long)
     }
+
+    func transmitter(_ transmitter: Transmitter, didReadUnknownData data: Data) {
+        titleLabel.text = NSLocalizedString("Unknown Data", comment: "Title displayed during unknown data response")
+        subtitleLabel.text = data.hexadecimalString
+    }
 }
 
 

README.md

@@ -1,6 +1,6 @@
 # xDripG5
 
-[![CI Status](http://img.shields.io/travis/loudnate/xDripG5.svg?style=flat)](https://travis-ci.org/loudnate/xDripG5)
+[![CI Status](http://img.shields.io/travis/LoopKit/xDripG5.svg?style=flat)](https://travis-ci.org/LoopKit/xDripG5)
 [![Carthage compatible](https://img.shields.io/badge/Carthage-compatible-4BC51D.svg?style=flat)](https://github.com/Carthage/Carthage)
 [![Version](https://img.shields.io/cocoapods/v/xDripG5.svg?style=flat)](http://cocoapods.org/pods/xDripG5)
 [![License](https://img.shields.io/cocoapods/l/xDripG5.svg?style=flat)](http://cocoapods.org/pods/xDripG5)
@@ -21,7 +21,7 @@ This framework connects to a G5 Mobile Transmitter via Bluetooth LE. It does not
 xDripG5 is available through [Carthage](https://github.com/Carthage/Carthage). To install it, add the following line to your Cartfile:
 
 ```ruby
-github "loudnate/xDripG5"
+github "LoopKit/xDripG5"
 ```
 
 Note that you'll need to confgure your target to link against `CommonCrypto.framework` in addition to `xDripG5.framework`
@@ -48,7 +48,7 @@ If you plan to run your app alongside the G5 Mobile application, make sure to se
 
 ## Code of Conduct
 
-Please note that this project is released with a [Contributor Code of Conduct](https://github.com/loudnate/LoopKit/blob/master/CODE_OF_CONDUCT.md). By participating in this project you agree to abide by its terms.
+Please note that this project is released with a [Contributor Code of Conduct](https://github.com/LoopKit/LoopKit/blob/master/CODE_OF_CONDUCT.md). By participating in this project you agree to abide by its terms.
 
 ## License
 

xDripG5.podspec

@@ -1,6 +1,6 @@
 Pod::Spec.new do |s|
   s.name             = "xDripG5"
-  s.version          = "0.7.0"
+  s.version          = "0.8.0"
   s.summary          = "An interface for communicating with the G5 glucose transmitter over Bluetooth."
 
   s.description      = <<-DESC
@@ -11,11 +11,10 @@ By using this framework in your own app, you can get access to your glucose read
 Please note this project is neither created nor backed by Dexcom, Inc. Use of this software is not intended for therapy.
                        DESC
 
-  s.homepage         = "https://github.com/loudnate/xDripG5"
+  s.homepage         = "https://github.com/LoopKit/xDripG5"
   s.license          = 'MIT'
   s.author           = { "Nathan Racklyeft" => "loudnate@gmail.com" }
-  s.source           = { :git => "https://github.com/loudnate/xDripG5.git", :tag => s.version.to_s }
-  s.social_media_url = 'https://twitter.com/loudnate'
+  s.source           = { :git => "https://github.com/LoopKit/xDripG5.git", :tag => s.version.to_s }
 
   s.platform     = :ios, '9.3'
   s.requires_arc = true

xDripG5.xcodeproj/project.pbxproj

@@ -9,6 +9,10 @@
 /* Begin PBXBuildFile section */
 		430D64C51CB7846A00FCA750 /* NSData+CRC.swift in Sources */ = {isa = PBXBuildFile; fileRef = 430D64C41CB7846A00FCA750 /* NSData+CRC.swift */; };
 		43538C111D81220F0071CA5E /* NSData.swift in Sources */ = {isa = PBXBuildFile; fileRef = 43CABE101C350B2800005705 /* NSData.swift */; };
+		43846AC61D8F896C00799272 /* CalibrationDataRxMessage.swift in Sources */ = {isa = PBXBuildFile; fileRef = 43846AC51D8F896C00799272 /* CalibrationDataRxMessage.swift */; };
+		43846AC81D8F89BE00799272 /* CalibrationDataRxMessageTests.swift in Sources */ = {isa = PBXBuildFile; fileRef = 43846AC71D8F89BE00799272 /* CalibrationDataRxMessageTests.swift */; };
+		43880F981D9E19FC009061A8 /* TransmitterVersionRxMessage.swift in Sources */ = {isa = PBXBuildFile; fileRef = 43880F971D9E19FC009061A8 /* TransmitterVersionRxMessage.swift */; };
+		43880F9A1D9E1BD7009061A8 /* TransmitterVersionRxMessageTests.swift in Sources */ = {isa = PBXBuildFile; fileRef = 43880F991D9E1BD7009061A8 /* TransmitterVersionRxMessageTests.swift */; };
 		43CABDF71C3506F100005705 /* xDripG5.h in Headers */ = {isa = PBXBuildFile; fileRef = 43CABDF61C3506F100005705 /* xDripG5.h */; settings = {ATTRIBUTES = (Public, ); }; };
 		43CABDFE1C3506F100005705 /* xDripG5.framework in Frameworks */ = {isa = PBXBuildFile; fileRef = 43CABDF31C3506F100005705 /* xDripG5.framework */; };
 		43CABE121C350B2800005705 /* BluetoothManager.swift in Sources */ = {isa = PBXBuildFile; fileRef = 43CABE0E1C350B2800005705 /* BluetoothManager.swift */; };
@@ -74,6 +78,10 @@
 
 /* Begin PBXFileReference section */
 		430D64C41CB7846A00FCA750 /* NSData+CRC.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = "NSData+CRC.swift"; sourceTree = "<group>"; };
+		43846AC51D8F896C00799272 /* CalibrationDataRxMessage.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = CalibrationDataRxMessage.swift; sourceTree = "<group>"; };
+		43846AC71D8F89BE00799272 /* CalibrationDataRxMessageTests.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = CalibrationDataRxMessageTests.swift; sourceTree = "<group>"; };
+		43880F971D9E19FC009061A8 /* TransmitterVersionRxMessage.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = TransmitterVersionRxMessage.swift; sourceTree = "<group>"; };
+		43880F991D9E1BD7009061A8 /* TransmitterVersionRxMessageTests.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = TransmitterVersionRxMessageTests.swift; sourceTree = "<group>"; };
 		43CABDF31C3506F100005705 /* xDripG5.framework */ = {isa = PBXFileReference; explicitFileType = wrapper.framework; includeInIndex = 0; path = xDripG5.framework; sourceTree = BUILT_PRODUCTS_DIR; };
 		43CABDF61C3506F100005705 /* xDripG5.h */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.h; path = xDripG5.h; sourceTree = "<group>"; };
 		43CABDF81C3506F100005705 /* Info.plist */ = {isa = PBXFileReference; lastKnownFileType = text.plist.xml; path = Info.plist; sourceTree = "<group>"; };
@@ -182,13 +190,15 @@
 		43CABE011C3506F100005705 /* xDripG5Tests */ = {
 			isa = PBXGroup;
 			children = (
-				43E397901D5692080028E321 /* GlucoseTests.swift */,
+				43846AC71D8F89BE00799272 /* CalibrationDataRxMessageTests.swift */,
 				43DC87C11C8B520F005BC30D /* GlucoseRxMessageTests.swift */,
+				43E397901D5692080028E321 /* GlucoseTests.swift */,
 				43CABE041C3506F100005705 /* Info.plist */,
 				43DC87BF1C8B509B005BC30D /* NSData.swift */,
-				43F82BCB1D035AA4006F5DD7 /* TransmitterTimeRxMessageTests.swift */,
-				43F82BD11D037040006F5DD7 /* SessionStopRxMessageTests.swift */,
 				43F82BD31D037227006F5DD7 /* SessionStartRxMessageTests.swift */,
+				43F82BD11D037040006F5DD7 /* SessionStopRxMessageTests.swift */,
+				43F82BCB1D035AA4006F5DD7 /* TransmitterTimeRxMessageTests.swift */,
+				43880F991D9E1BD7009061A8 /* TransmitterVersionRxMessageTests.swift */,
 			);
 			path = xDripG5Tests;
 			sourceTree = "<group>";
@@ -203,6 +213,7 @@
 				43CE7CCB1CA73BCC003CC1B0 /* BatteryStatusTxMessage.swift */,
 				43CABE1B1C350B3D00005705 /* BondRequestTxMessage.swift */,
 				43CE7CD11CA73CBC003CC1B0 /* CalibrateGlucoseTxMessage.swift */,
+				43846AC51D8F896C00799272 /* CalibrationDataRxMessage.swift */,
 				43CABE1C1C350B3D00005705 /* DisconnectTxMessage.swift */,
 				43CE7CC71CA73AEB003CC1B0 /* FirmwareVersionTxMessage.swift */,
 				43CE7CD31CA73CE8003CC1B0 /* GlucoseHistoryTxMessage.swift */,
@@ -217,6 +228,7 @@
 				43CABE211C350B3D00005705 /* TransmitterTimeRxMessage.swift */,
 				43CABE221C350B3D00005705 /* TransmitterTimeTxMessage.swift */,
 				43CE7CC91CA73B94003CC1B0 /* TransmitterVersionTxMessage.swift */,
+				43880F971D9E19FC009061A8 /* TransmitterVersionRxMessage.swift */,
 			);
 			path = Messages;
 			sourceTree = "<group>";
@@ -281,7 +293,7 @@
 			attributes = {
 				LastSwiftUpdateCheck = 0730;
 				LastUpgradeCheck = 0800;
-				ORGANIZATIONNAME = "Nathan Racklyeft";
+				ORGANIZATIONNAME = "LoopKit Authors";
 				TargetAttributes = {
 					43CABDF21C3506F100005705 = {
 						CreatedOnToolsVersion = 7.2;
@@ -343,13 +355,15 @@
 				43CABE261C350B3D00005705 /* AuthStatusRxMessage.swift in Sources */,
 				43CE7CD41CA73CE8003CC1B0 /* GlucoseHistoryTxMessage.swift in Sources */,
 				43E397931D56950C0028E321 /* HKUnit.swift in Sources */,
+				43846AC61D8F896C00799272 /* CalibrationDataRxMessage.swift in Sources */,
 				43CE7CD01CA73C57003CC1B0 /* SessionStopTxMessage.swift in Sources */,
 				43CABE2A1C350B3D00005705 /* GlucoseTxMessage.swift in Sources */,
 				43CE7CC81CA73AEB003CC1B0 /* FirmwareVersionTxMessage.swift in Sources */,
 				43CE7CCC1CA73BCC003CC1B0 /* BatteryStatusTxMessage.swift in Sources */,
 				43EEA7121D14DC0800CBBDA0 /* AESCrypt.m in Sources */,
 				43CE7CCE1CA73C22003CC1B0 /* SessionStartTxMessage.swift in Sources */,
 				43CABE2E1C350B3D00005705 /* TransmitterTimeTxMessage.swift in Sources */,
+				43880F981D9E19FC009061A8 /* TransmitterVersionRxMessage.swift in Sources */,
 				43538C111D81220F0071CA5E /* NSData.swift in Sources */,
 				43CABE2C1C350B3D00005705 /* TransmitterMessage.swift in Sources */,
 				43CABE131C350B2800005705 /* BluetoothServices.swift in Sources */,
@@ -373,9 +387,11 @@
 			files = (
 				43F82BCC1D035AA4006F5DD7 /* TransmitterTimeRxMessageTests.swift in Sources */,
 				43F82BD41D037227006F5DD7 /* SessionStartRxMessageTests.swift in Sources */,
+				43846AC81D8F89BE00799272 /* CalibrationDataRxMessageTests.swift in Sources */,
 				43DC87C01C8B509B005BC30D /* NSData.swift in Sources */,
 				43F82BD21D037040006F5DD7 /* SessionStopRxMessageTests.swift in Sources */,
 				43E397911D5692080028E321 /* GlucoseTests.swift in Sources */,
+				43880F9A1D9E1BD7009061A8 /* TransmitterVersionRxMessageTests.swift in Sources */,
 				43DC87C21C8B520F005BC30D /* GlucoseRxMessageTests.swift in Sources */,
 			);
 			runOnlyForDeploymentPostprocessing = 0;
@@ -412,7 +428,7 @@
 				CLANG_WARN__DUPLICATE_METHOD_MATCH = YES;
 				"CODE_SIGN_IDENTITY[sdk=iphoneos*]" = "iPhone Developer";
 				COPY_PHASE_STRIP = NO;
-				CURRENT_PROJECT_VERSION = 13;
+				CURRENT_PROJECT_VERSION = 14;
 				DEBUG_INFORMATION_FORMAT = dwarf;
 				ENABLE_STRICT_OBJC_MSGSEND = YES;
 				ENABLE_TESTABILITY = YES;
@@ -462,7 +478,7 @@
 				CLANG_WARN__DUPLICATE_METHOD_MATCH = YES;
 				"CODE_SIGN_IDENTITY[sdk=iphoneos*]" = "iPhone Developer";
 				COPY_PHASE_STRIP = NO;
-				CURRENT_PROJECT_VERSION = 13;
+				CURRENT_PROJECT_VERSION = 14;
 				DEBUG_INFORMATION_FORMAT = "dwarf-with-dsym";
 				ENABLE_NS_ASSERTIONS = NO;
 				ENABLE_STRICT_OBJC_MSGSEND = YES;
@@ -492,7 +508,7 @@
 				"CODE_SIGN_IDENTITY[sdk=iphoneos*]" = "";
 				DEFINES_MODULE = YES;
 				DYLIB_COMPATIBILITY_VERSION = 1;
-				DYLIB_CURRENT_VERSION = 13;
+				DYLIB_CURRENT_VERSION = 14;
 				DYLIB_INSTALL_NAME_BASE = "@rpath";
 				INFOPLIST_FILE = xDripG5/Info.plist;
 				INSTALL_PATH = "$(LOCAL_LIBRARY_DIR)/Frameworks";
@@ -512,7 +528,7 @@
 				"CODE_SIGN_IDENTITY[sdk=iphoneos*]" = "";
 				DEFINES_MODULE = YES;
 				DYLIB_COMPATIBILITY_VERSION = 1;
-				DYLIB_CURRENT_VERSION = 13;
+				DYLIB_CURRENT_VERSION = 14;
 				DYLIB_INSTALL_NAME_BASE = "@rpath";
 				INFOPLIST_FILE = xDripG5/Info.plist;
 				INSTALL_PATH = "$(LOCAL_LIBRARY_DIR)/Frameworks";

xDripG5/BluetoothManager.swift

@@ -29,6 +29,12 @@ protocol BluetoothManagerDelegate: class {
      - returns: True if the peripheral should connect
      */
     func bluetoothManager(_ manager: BluetoothManager, shouldConnectPeripheral peripheral: CBPeripheral) -> Bool
+
+    /// Tells the delegate that the bluetooth manager received new data in the control characteristic.
+    ///
+    /// - parameter manager:                   The bluetooth manager
+    /// - parameter didReceiveControlResponse: The data received on the control characteristic
+    func bluetoothManager(_ manager: BluetoothManager, didReceiveControlResponse response: Data)
 }
 
 
@@ -422,7 +428,6 @@ class BluetoothManager: NSObject, CBCentralManagerDelegate, CBPeripheralDelegate
     }
 
     func peripheral(_ peripheral: CBPeripheral, didUpdateValueFor characteristic: CBCharacteristic, error: Error?) {
-
         operationLock.lock()
 
         if operationConditions.remove(.valueUpdate(characteristic: characteristic, firstByte: characteristic.value?[0])) != nil ||
@@ -436,11 +441,15 @@ class BluetoothManager: NSObject, CBCentralManagerDelegate, CBPeripheralDelegate
         }
 
         operationLock.unlock()
+
+        if let data = characteristic.value {
+            delegate?.bluetoothManager(self, didReceiveControlResponse: data)
+        }
     }
 
     func peripheral(_ peripheral: CBPeripheral, didWriteValueFor characteristic: CBCharacteristic, error: Error?) {
 
-        self.operationLock.lock()
+        operationLock.lock()
 
         if operationConditions.remove(.writeUpdate(characteristic: characteristic)) != nil {
             operationError = error
@@ -450,7 +459,7 @@ class BluetoothManager: NSObject, CBCentralManagerDelegate, CBPeripheralDelegate
             }
         }
 
-        self.operationLock.unlock()
+        operationLock.unlock()
     }
 }
 

xDripG5/Info.plist

@@ -15,7 +15,7 @@
 	<key>CFBundlePackageType</key>
 	<string>FMWK</string>
 	<key>CFBundleShortVersionString</key>
-	<string>0.7.0</string>
+	<string>0.8.0</string>
 	<key>CFBundleSignature</key>
 	<string>????</string>
 	<key>CFBundleVersion</key>

xDripG5/Messages/BatteryStatusTxMessage.swift

@@ -11,4 +11,6 @@ import Foundation
 
 struct BatteryStatusTxMessage {
     let opcode: UInt8 = 0x22
+
+    // Response: 23003c012f01cd021f247bae
 }

xDripG5/Messages/CalibrationDataRxMessage.swift

@@ -0,0 +1,24 @@
+//
+//  CalibrationDataRxMessage.swift
+//  Pods
+//
+//  Created by Nate Racklyeft on 9/18/16.
+//
+//
+
+import Foundation
+
+
+struct CalibrationDataRxMessage: TransmitterRxMessage {
+    static let opcode: UInt8 = 0x33
+
+    init?(data: Data) {
+        guard data.count == 19 && data.crcValid() else {
+            return nil
+        }
+
+        guard data[0] == type(of: self).opcode else {
+            return nil
+        }
+    }
+}