Block implicitly retains 'self' warnings on Xcode 9

[battlmonstr]

Compiling a version of the Pod from develop branch (commit
6d24e1c ) under Xcode 9.4.1 generates a bunch of warnings:

.../Pods/PocketSocket/PocketSocket/PSWebSocket.m:61:17: warning: block implicitly retains 'self'; explicitly mention 'self' to indicate this is intended behavior [-Wimplicit-retain-self]
        value = _readyState;
                ^
                self->
.../Pods/PocketSocket/PocketSocket/PSWebSocket.m:79:18: warning: block implicitly retains 'self'; explicitly mention 'self' to indicate this is intended behavior [-Wimplicit-retain-self]
        result = _inputPaused;
                 ^
                 self->
.../Pods/PocketSocket/PocketSocket/PSWebSocket.m:85:28: warning: block implicitly retains 'self'; explicitly mention 'self' to indicate this is intended behavior [-Wimplicit-retain-self]
        if (inputPaused != _inputPaused) {
                           ^
                           self->
.../Pods/PocketSocket/PocketSocket/PSWebSocket.m:86:13: warning: block implicitly retains 'self'; explicitly mention 'self' to indicate this is intended behavior [-Wimplicit-retain-self]
            _inputPaused = inputPaused;
            ^
            self->
.../Pods/PocketSocket/PocketSocket/PSWebSocket.m:97:18: warning: block implicitly retains 'self'; explicitly mention 'self' to indicate this is intended behavior [-Wimplicit-retain-self]
        result = _outputPaused;
                 ^
                 self->
.../Pods/PocketSocket/PocketSocket/PSWebSocket.m:103:29: warning: block implicitly retains 'self'; explicitly mention 'self' to indicate this is intended behavior [-Wimplicit-retain-self]
        if (outputPaused != _outputPaused) {
                            ^
                            self->
.../Pods/PocketSocket/PocketSocket/PSWebSocket.m:104:13: warning: block implicitly retains 'self'; explicitly mention 'self' to indicate this is intended behavior [-Wimplicit-retain-self]
            _outputPaused = outputPaused;
            ^
            self->
.../Pods/PocketSocket/PocketSocket/PSWebSocket.m:217:12: warning: block implicitly retains 'self'; explicitly mention 'self' to indicate this is intended behavior [-Wimplicit-retain-self]
        if(_opened || _readyState != PSWebSocketReadyStateConnecting) {
           ^
           self->
.../Pods/PocketSocket/PocketSocket/PSWebSocket.m:217:23: warning: block implicitly retains 'self'; explicitly mention 'self' to indicate this is intended behavior [-Wimplicit-retain-self]
        if(_opened || _readyState != PSWebSocketReadyStateConnecting) {
                      ^
                      self->
.../Pods/PocketSocket/PocketSocket/PSWebSocket.m:222:9: warning: block implicitly retains 'self'; explicitly mention 'self' to indicate this is intended behavior [-Wimplicit-retain-self]
        _opened = YES;
        ^
        self->
.../Pods/PocketSocket/PocketSocket/PSWebSocket.m:231:13: warning: block implicitly retains 'self'; explicitly mention 'self' to indicate this is intended behavior [-Wimplicit-retain-self]
        if(!_opened || _readyState == PSWebSocketReadyStateConnecting) {
            ^
            self->
.../Pods/PocketSocket/PocketSocket/PSWebSocket.m:231:24: warning: block implicitly retains 'self'; explicitly mention 'self' to indicate this is intended behavior [-Wimplicit-retain-self]
        if(!_opened || _readyState == PSWebSocketReadyStateConnecting) {
                       ^
                       self->
.../Pods/PocketSocket/PocketSocket/PSWebSocket.m:237:14: warning: block implicitly retains 'self'; explicitly mention 'self' to indicate this is intended behavior [-Wimplicit-retain-self]
            [_driver sendText:message];
             ^
             self->
.../Pods/PocketSocket/PocketSocket/PSWebSocket.m:239:14: warning: block implicitly retains 'self'; explicitly mention 'self' to indicate this is intended behavior [-Wimplicit-retain-self]
            [_driver sendBinary:message];
             ^
             self->
.../Pods/PocketSocket/PocketSocket/PSWebSocket.m:248:14: warning: block implicitly retains 'self'; explicitly mention 'self' to indicate this is intended behavior [-Wimplicit-retain-self]
            [_pingHandlers addObject:handler];
             ^
             self->
.../Pods/PocketSocket/PocketSocket/PSWebSocket.m:250:10: warning: block implicitly retains 'self'; explicitly mention 'self' to indicate this is intended behavior [-Wimplicit-retain-self]
        [_driver sendPing:pingData];
         ^
         self->
.../Pods/PocketSocket/PocketSocket/PSWebSocket.m:259:12: warning: block implicitly retains 'self'; explicitly mention 'self' to indicate this is intended behavior [-Wimplicit-retain-self]
        if(_readyState >= PSWebSocketReadyStateClosing) {
           ^
           self->
.../Pods/PocketSocket/PocketSocket/PSWebSocket.m:263:28: warning: block implicitly retains 'self'; explicitly mention 'self' to indicate this is intended behavior [-Wimplicit-retain-self]
        BOOL connecting = (_readyState == PSWebSocketReadyStateConnecting);
                           ^
                           self->
.../Pods/PocketSocket/PocketSocket/PSWebSocket.m:264:9: warning: block implicitly retains 'self'; explicitly mention 'self' to indicate this is intended behavior [-Wimplicit-retain-self]
        _readyState = PSWebSocketReadyStateClosing;
        ^
        self->
.../Pods/PocketSocket/PocketSocket/PSWebSocket.m:268:13: warning: block implicitly retains 'self'; explicitly mention 'self' to indicate this is intended behavior [-Wimplicit-retain-self]
            _closeCode = code;
            ^
            self->
.../Pods/PocketSocket/PocketSocket/PSWebSocket.m:269:14: warning: block implicitly retains 'self'; explicitly mention 'self' to indicate this is intended behavior [-Wimplicit-retain-self]
            [_driver sendCloseCode:code reason:reason];
             ^
             self->
.../Pods/PocketSocket/PocketSocket/PSWebSocket.m:296:71: warning: block implicitly retains 'self'; explicitly mention 'self' to indicate this is intended behavior [-Wimplicit-retain-self]
        result = CFWriteStreamCopyProperty((__bridge CFWriteStreamRef)_outputStream, (__bridge CFStringRef)key);
                                                                      ^
                                                                      self->
.../Pods/PocketSocket/PocketSocket/PSWebSocket.m:302:12: warning: block implicitly retains 'self'; explicitly mention 'self' to indicate this is intended behavior [-Wimplicit-retain-self]
        if(_opened || _readyState != PSWebSocketReadyStateConnecting) {
           ^
           self->
.../Pods/PocketSocket/PocketSocket/PSWebSocket.m:302:23: warning: block implicitly retains 'self'; explicitly mention 'self' to indicate this is intended behavior [-Wimplicit-retain-self]
        if(_opened || _readyState != PSWebSocketReadyStateConnecting) {
                      ^
                      self->
.../Pods/PocketSocket/PocketSocket/PSWebSocket.m:306:61: warning: block implicitly retains 'self'; explicitly mention 'self' to indicate this is intended behavior [-Wimplicit-retain-self]
        CFWriteStreamSetProperty((__bridge CFWriteStreamRef)_outputStream, (__bridge CFStringRef)key, (CFTypeRef)property);
                                                            ^
                                                            self->
.../Pods/PocketSocket/PocketSocket/PSWebSocket.m:317:38: warning: block implicitly retains 'self'; explicitly mention 'self' to indicate this is intended behavior [-Wimplicit-retain-self]
            customTrustEvaluation = [_delegate respondsToSelector:@selector(webSocket:evaluateServerTrust:)];
                                     ^
                                     self->
.../Pods/PocketSocket/PocketSocket/PSWebSocket.m:506:13: warning: block implicitly retains 'self'; explicitly mention 'self' to indicate this is intended behavior [-Wimplicit-retain-self]
            _closeCode = error.code;
            ^
            self->
.../Pods/PocketSocket/PocketSocket/PSWebSocket.m:507:13: warning: block implicitly retains 'self'; explicitly mention 'self' to indicate this is intended behavior [-Wimplicit-retain-self]
            _closeReason = error.localizedDescription;
            ^
            self->
.../Pods/PocketSocket/PocketSocket/PSWebSocket.m:508:33: warning: block implicitly retains 'self'; explicitly mention 'self' to indicate this is intended behavior [-Wimplicit-retain-self]
            [self closeWithCode:_closeCode reason:_closeReason];
                                ^
                                self->
.../Pods/PocketSocket/PocketSocket/PSWebSocket.m:508:51: warning: block implicitly retains 'self'; explicitly mention 'self' to indicate this is intended behavior [-Wimplicit-retain-self]
            [self closeWithCode:_closeCode reason:_closeReason];
                                                  ^
                                                  self->
.../Pods/PocketSocket/PocketSocket/PSWebSocket.m:515:16: warning: block implicitly retains 'self'; explicitly mention 'self' to indicate this is intended behavior [-Wimplicit-retain-self]
            if(_readyState != PSWebSocketReadyStateClosed) {
               ^
               self->
.../Pods/PocketSocket/PocketSocket/PSWebSocket.m:516:17: warning: block implicitly retains 'self'; explicitly mention 'self' to indicate this is intended behavior [-Wimplicit-retain-self]
                _failed = YES;
                ^
                self->
.../Pods/PocketSocket/PocketSocket/PSWebSocket.m:517:17: warning: block implicitly retains 'self'; explicitly mention 'self' to indicate this is intended behavior [-Wimplicit-retain-self]
                _readyState = PSWebSocketReadyStateClosed;
                ^
                self->
.../Pods/PocketSocket/PocketSocket/PSWebSocket.m:640:10: warning: block implicitly retains 'self'; explicitly mention 'self' to indicate this is intended behavior [-Wimplicit-retain-self]
        [_delegate webSocketDidOpen:self];
         ^
         self->
.../Pods/PocketSocket/PocketSocket/PSWebSocket.m:645:10: warning: block implicitly retains 'self'; explicitly mention 'self' to indicate this is intended behavior [-Wimplicit-retain-self]
        [_delegate webSocket:self didReceiveMessage:message];
         ^
         self->
.../Pods/PocketSocket/PocketSocket/PSWebSocket.m:650:10: warning: block implicitly retains 'self'; explicitly mention 'self' to indicate this is intended behavior [-Wimplicit-retain-self]
        [_delegate webSocket:self didFailWithError:error];
         ^
         self->
.../Pods/PocketSocket/PocketSocket/PSWebSocket.m:655:10: warning: block implicitly retains 'self'; explicitly mention 'self' to indicate this is intended behavior [-Wimplicit-retain-self]
        [_delegate webSocket:self didCloseWithCode:code reason:reason wasClean:wasClean];
         ^
         self->
.../Pods/PocketSocket/PocketSocket/PSWebSocket.m:660:14: warning: block implicitly retains 'self'; explicitly mention 'self' to indicate this is intended behavior [-Wimplicit-retain-self]
        if ([_delegate respondsToSelector:@selector(webSocketDidFlushInput:)]) {
             ^
             self->
.../Pods/PocketSocket/PocketSocket/PSWebSocket.m:661:14: warning: block implicitly retains 'self'; explicitly mention 'self' to indicate this is intended behavior [-Wimplicit-retain-self]
            [_delegate webSocketDidFlushInput:self];
             ^
             self->
.../Pods/PocketSocket/PocketSocket/PSWebSocket.m:667:14: warning: block implicitly retains 'self'; explicitly mention 'self' to indicate this is intended behavior [-Wimplicit-retain-self]
        if ([_delegate respondsToSelector:@selector(webSocketDidFlushOutput:)]) {
             ^
             self->
.../Pods/PocketSocket/PocketSocket/PSWebSocket.m:668:14: warning: block implicitly retains 'self'; explicitly mention 'self' to indicate this is intended behavior [-Wimplicit-retain-self]
            [_delegate webSocketDidFlushOutput:self];
             ^
             self->
.../Pods/PocketSocket/PocketSocket/PSWebSocket.m:675:14: warning: block implicitly retains 'self'; explicitly mention 'self' to indicate this is intended behavior [-Wimplicit-retain-self]
        if ([_delegate respondsToSelector:@selector(webSocket:evaluateServerTrust:)]) {
             ^
             self->
.../Pods/PocketSocket/PocketSocket/PSWebSocket.m:676:23: warning: block implicitly retains 'self'; explicitly mention 'self' to indicate this is intended behavior [-Wimplicit-retain-self]
            result = [_delegate webSocket:self evaluateServerTrust:trust];
                      ^
                      self->
43 warnings generated.