/* * Copyright (C) 2013 Apple Inc. All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF * THE POSSIBILITY OF SUCH DAMAGE. */ #import "config.h" #import "WKRemoteObject.h" #if WK_API_ENABLED #import "_WKRemoteObjectInterface.h" #import "_WKRemoteObjectRegistryInternal.h" #import <objc/runtime.h> #import <wtf/RetainPtr.h> @implementation WKRemoteObject { RetainPtr<_WKRemoteObjectRegistry> _objectRegistry; RetainPtr<_WKRemoteObjectInterface> _interface; } - (instancetype)_initWithObjectRegistry:(_WKRemoteObjectRegistry *)objectRegistry interface:(_WKRemoteObjectInterface *)interface { if (!(self = [super init])) return nil; _objectRegistry = objectRegistry; _interface = interface; return self; } - (BOOL)conformsToProtocol:(Protocol *)protocol { return [super conformsToProtocol:protocol] || protocol_conformsToProtocol([_interface protocol], protocol); } static const char* methodArgumentTypeEncodingForSelector(Protocol *protocol, SEL selector) { // First look at required methods. struct objc_method_description method = protocol_getMethodDescription(protocol, selector, YES, YES); if (method.name) return method.types; // Then look at optional methods. method = protocol_getMethodDescription(protocol, selector, NO, YES); if (method.name) return method.types; return nullptr; } - (NSMethodSignature *)methodSignatureForSelector:(SEL)selector { if (!selector) return nil; Protocol *protocol = [_interface protocol]; const char* types = methodArgumentTypeEncodingForSelector(protocol, selector); if (!types) { // We didn't find anything the protocol, fall back to the superclass. return [super methodSignatureForSelector:selector]; } return [NSMethodSignature signatureWithObjCTypes:types]; } - (void)forwardInvocation:(NSInvocation *)invocation { [_objectRegistry _sendInvocation:invocation interface:_interface.get()]; } @end #endif // WK_API_ENABLED