Remove all mention of "pairing" from Darwin public APIs.

examples/darwin-framework-tool/commands/pairing/DeviceControllerDelegateBridge.h

@@ -26,8 +26,7 @@
 @property MTRDeviceController * commissioner;
 @property MTRCommissioningParameters * params;
 
-- (void)onPairingComplete:(NSError *)error;
-- (void)onPairingDeleted:(NSError *)error;
+- (void)onCommissioningSessionEstablishmentDone:(NSError *)error;
 - (void)onCommissioningComplete:(NSError *)error;
 
 @end

examples/darwin-framework-tool/commands/pairing/DeviceControllerDelegateBridge.mm

@@ -44,7 +44,7 @@ - (void)onStatusUpdate:(MTRCommissioningStatus)status
     }
 }
 
-- (void)onPairingComplete:(NSError *)error
+- (void)onCommissioningSessionEstablishmentDone:(NSError *)error
 {
     if (error != nil) {
         ChipLogProgress(chipTool, "PASE establishment failed");
@@ -61,11 +61,6 @@ - (void)onPairingComplete:(NSError *)error
     }
 }
 
-- (void)onPairingDeleted:(NSError *)error
-{
-    _commandBridge->SetCommandExitStatus(error, "Pairing Delete");
-}
-
 - (void)onCommissioningComplete:(NSError *)error
 {
     _commandBridge->SetCommandExitStatus(error, "Pairing Commissioning Complete");

examples/darwin-framework-tool/commands/tests/TestCommandBridge.h

@@ -49,8 +49,7 @@ constexpr const char * kDefaultKey = "default";
 @property BOOL active; // Whether to pass on notifications to the commandBridge
 
 - (void)onStatusUpdate:(MTRCommissioningStatus)status;
-- (void)onPairingComplete:(NSError * _Nullable)error;
-- (void)onPairingDeleted:(NSError * _Nullable)error;
+- (void)onCommissioningSessionEstablishmentDone:(NSError * _Nullable)error;
 - (void)onCommissioningComplete:(NSError * _Nullable)error;
 
 - (instancetype)init NS_UNAVAILABLE;
@@ -543,7 +542,7 @@ NS_ASSUME_NONNULL_BEGIN
     }
 }
 
-- (void)onPairingComplete:(NSError * _Nullable)error
+- (void)onCommissioningSessionEstablishmentDone:(NSError * _Nullable)error
 {
     if (_active) {
         if (error != nil) {
@@ -557,13 +556,6 @@ NS_ASSUME_NONNULL_BEGIN
     }
 }
 
-- (void)onPairingDeleted:(NSError * _Nullable)error
-{
-    if (_active) {
-        _commandBridge->PairingDeleted();
-    }
-}
-
 - (void)onCommissioningComplete:(NSError * _Nullable)error
 {
     if (_active) {

src/darwin/CHIPTool/CHIPTool/View Controllers/QRCode/QRCodeViewController.m

@@ -419,7 +419,7 @@ - (void)viewDidLoad
 
     dispatch_queue_t callbackQueue = dispatch_queue_create("com.csa.matter.qrcodevc.callback", DISPATCH_QUEUE_SERIAL);
     self.chipController = InitializeMTR();
-    [self.chipController setPairingDelegate:self queue:callbackQueue];
+    [self.chipController setDeviceControllerDelegate:self queue:callbackQueue];
 
     UITapGestureRecognizer * tap = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(dismissKeyboard)];
     [self.view addGestureRecognizer:tap];
@@ -490,7 +490,7 @@ - (void)setVendorIDOnAccessory
 }
 
 // MARK: MTRDeviceControllerDelegate
-- (void)onPairingComplete:(NSError * _Nullable)error
+- (void)onCommissioningSessionEstablishmentDone:(NSError * _Nullable)error
 {
     if (error != nil) {
         NSLog(@"Got pairing error back %@", error);
@@ -803,7 +803,7 @@ - (void)_restartMatterStack
 {
     self.chipController = MTRRestartController(self.chipController);
     dispatch_queue_t callbackQueue = dispatch_queue_create("com.csa.matter.qrcodevc.callback", DISPATCH_QUEUE_SERIAL);
-    [self.chipController setPairingDelegate:self queue:callbackQueue];
+    [self.chipController setDeviceControllerDelegate:self queue:callbackQueue];
 }
 
 - (void)handleRendezVousDefault:(NSString *)payload

src/darwin/Framework/CHIP/MTRDeviceController.h

@@ -54,9 +54,9 @@ NS_ASSUME_NONNULL_BEGIN
  * provided discriminator.
  *
  * Then a PASE session will be established with the device, unless an error
- * occurs.  MTRDevicePairingDelegate will be notified as follows:
+ * occurs.  MTRDeviceControllerDelegate will be notified as follows:
  *
- * * Discovery fails: onStatusUpdate with MTRPairingStatusFailed.
+ * * Discovery fails: onStatusUpdate with MTRCommissioningStatusFailed.
  *
  * * Discovery succeeds but commissioning session setup fails: onPairingComplete
  *   with an error.
@@ -103,9 +103,9 @@ NS_ASSUME_NONNULL_BEGIN
 + (instancetype)new NS_UNAVAILABLE;
 
 /**
- * Set the Delegate for the Device Pairing  as well as the Queue on which the Delegate callbacks will be triggered
+ * Set the Delegate for the device controller  as well as the Queue on which the Delegate callbacks will be triggered
  *
- * @param[in] delegate The delegate the pairing process should use
+ * @param[in] delegate The delegate the commissioning process should use
  *
  * @param[in] queue The queue on which the callbacks will be delivered
  */

src/darwin/Framework/CHIP/MTRDeviceControllerDelegate.h

@@ -27,36 +27,28 @@ typedef NS_ENUM(NSUInteger, MTRCommissioningStatus) {
 };
 
 /**
- * The protocol definition for the MTRDeviceControllerDelegate
+ * The protocol definition for the MTRDeviceControllerDelegate.
  *
  * All delegate methods will be called on the supplied Delegate Queue.
  */
 @protocol MTRDeviceControllerDelegate <NSObject>
 @optional
 /**
- * Notify the delegate when pairing status gets updated
- *
+ * Notify the delegate when commissioning status gets updated.
  */
 - (void)onStatusUpdate:(MTRCommissioningStatus)status;
 
 /**
- * Notify the delegate when pairing is completed
- *
+ * Notify the delegate when a commissioning session is established or the
+ * establishment has errored out.
  */
-- (void)onPairingComplete:(NSError * _Nullable)error;
+- (void)onCommissioningSessionEstablishmentDone:(NSError * _Nullable)error;
 
 /**
- * Notify the delegate when commissioning is completed
- *
+ * Notify the delegate when commissioning is completed.
  */
 - (void)onCommissioningComplete:(NSError * _Nullable)error;
 
-/**
- * Notify the delegate when pairing is deleted
- *
- */
-- (void)onPairingDeleted:(NSError * _Nullable)error;
-
 @end
 
 NS_ASSUME_NONNULL_END

src/darwin/Framework/CHIP/MTRDeviceControllerDelegateBridge.mm

@@ -73,11 +73,11 @@
     NSLog(@"DeviceControllerDelegate Pairing complete. Status %s", chip::ErrorStr(error));
 
     id<MTRDeviceControllerDelegate> strongDelegate = mDelegate;
-    if ([strongDelegate respondsToSelector:@selector(onPairingComplete:)]) {
+    if ([strongDelegate respondsToSelector:@selector(onCommissioningSessionEstablishmentDone:)]) {
         if (strongDelegate && mQueue) {
             dispatch_async(mQueue, ^{
                 NSError * nsError = [MTRError errorForCHIPErrorCode:error];
-                [strongDelegate onPairingComplete:nsError];
+                [strongDelegate onCommissioningSessionEstablishmentDone:nsError];
             });
         }
     }
@@ -87,15 +87,7 @@
 {
     NSLog(@"DeviceControllerDelegate Pairing deleted. Status %s", chip::ErrorStr(error));
 
-    id<MTRDeviceControllerDelegate> strongDelegate = mDelegate;
-    if ([strongDelegate respondsToSelector:@selector(onPairingDeleted:)]) {
-        if (strongDelegate && mQueue) {
-            dispatch_async(mQueue, ^{
-                NSError * nsError = [MTRError errorForCHIPErrorCode:error];
-                [strongDelegate onPairingDeleted:nsError];
-            });
-        }
-    }
+    // This is never actually called; just do nothing.
 }
 
 void MTRDeviceControllerDelegateBridge::OnCommissioningComplete(chip::NodeId nodeId, CHIP_ERROR error)

src/darwin/Framework/CHIP/MTRSetupPayload.h

@@ -20,7 +20,8 @@
 NS_ASSUME_NONNULL_BEGIN
 
 typedef NS_OPTIONS(NSUInteger, MTRDiscoveryCapabilities) {
-    MTRDiscoveryCapabilitiesUnknown = 0, // Device capabilties are not known (e.g. all we have is a manual pairing code).
+    MTRDiscoveryCapabilitiesUnknown = 0, // Device capabilties are not known
+                                         // (e.g. all we have is a numeric code).
     MTRDiscoveryCapabilitiesSoftAP = 1 << 0, // Device supports WiFi softAP
     MTRDiscoveryCapabilitiesBLE = 1 << 1, // Device supports BLE
     MTRDiscoveryCapabilitiesOnNetwork = 1 << 2, // Device supports On Network setup
@@ -30,8 +31,8 @@ typedef NS_OPTIONS(NSUInteger, MTRDiscoveryCapabilities) {
 };
 
 typedef NS_ENUM(NSUInteger, MTRCommissioningFlow) {
-    MTRCommissioningFlowStandard = 0, // Device automatically enters pairing mode upon power-up
-    MTRCommissioningFlowUserActionRequired = 1, // Device requires a user interaction to enter pairing mode
+    MTRCommissioningFlowStandard = 0, // Device automatically enters commissioning mode upon power-up
+    MTRCommissioningFlowUserActionRequired = 1, // Device requires a user interaction to enter commissioning mode
     MTRCommissioningFlowCustom = 2, // Commissioning steps should be retrieved from the distributed compliance ledger
     MTRCommissioningFlowInvalid = 3,
 };
@@ -53,8 +54,10 @@ typedef NS_ENUM(NSUInteger, MTROptionalQRCodeInfoType) { MTROptionalQRCodeInfoTy
 @end
 
 /**
- * A setup payload that can be created from a pairing code and serialized to a
- * pairing code.
+ * A setup payload that can be created from a numeric code or QR code and
+ * serialized to a numeric code or QR code, though serializing to QR code after
+ * creating from numeric code will not work, because some required information
+ * will be missing.
  */
 @interface MTRSetupPayload : NSObject <NSSecureCoding>
 

src/darwin/Framework/CHIPTests/MTRDeviceTests.m

@@ -91,7 +91,7 @@ - (id)initWithExpectation:(XCTestExpectation *)expectation
     return self;
 }
 
-- (void)onPairingComplete:(NSError *)error
+- (void)onCommissioningSessionEstablishmentDone:(NSError *)error
 {
     XCTAssertEqual(error.code, 0);
 

src/darwin/Framework/CHIPTests/MTRXPCListenerSampleTests.m

@@ -401,7 +401,7 @@ - (id)initWithExpectation:(XCTestExpectation *)expectation
     return self;
 }
 
-- (void)onPairingComplete:(NSError *)error
+- (void)onCommissioningSessionEstablishmentDone:(NSError *)error
 {
     XCTAssertEqual(error.code, 0);
     NSError * commissionError = nil;