131 lines
5.0 KiB
Objective-C
131 lines
5.0 KiB
Objective-C
// Protocol Buffers - Google's data interchange format
|
|
// Copyright 2008 Google Inc. All rights reserved.
|
|
// https://developers.google.com/protocol-buffers/
|
|
//
|
|
// Redistribution and use in source and binary forms, with or without
|
|
// modification, are permitted provided that the following conditions are
|
|
// met:
|
|
//
|
|
// * Redistributions of source code must retain the above copyright
|
|
// notice, this list of conditions and the following disclaimer.
|
|
// * 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.
|
|
// * Neither the name of Google Inc. nor the names of its
|
|
// contributors may be used to endorse or promote products derived from
|
|
// this software without specific prior written permission.
|
|
//
|
|
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND 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 THE COPYRIGHT
|
|
// OWNER OR 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 "GPBExtensionRegistry.h"
|
|
|
|
#import "GPBBootstrap.h"
|
|
#import "GPBDescriptor.h"
|
|
|
|
@implementation GPBExtensionRegistry {
|
|
NSMutableDictionary *mutableClassMap_;
|
|
}
|
|
|
|
- (instancetype)init {
|
|
if ((self = [super init])) {
|
|
mutableClassMap_ = [[NSMutableDictionary alloc] init];
|
|
}
|
|
return self;
|
|
}
|
|
|
|
- (void)dealloc {
|
|
[mutableClassMap_ release];
|
|
[super dealloc];
|
|
}
|
|
|
|
// Direct access is use for speed, to avoid even internally declaring things
|
|
// read/write, etc. The warning is enabled in the project to ensure code calling
|
|
// protos can turn on -Wdirect-ivar-access without issues.
|
|
#pragma clang diagnostic push
|
|
#pragma clang diagnostic ignored "-Wdirect-ivar-access"
|
|
|
|
- (instancetype)copyWithZone:(NSZone *)zone {
|
|
GPBExtensionRegistry *result = [[[self class] allocWithZone:zone] init];
|
|
[result addExtensions:self];
|
|
return result;
|
|
}
|
|
|
|
- (void)addExtension:(GPBExtensionDescriptor *)extension {
|
|
if (extension == nil) {
|
|
return;
|
|
}
|
|
|
|
Class containingMessageClass = extension.containingMessageClass;
|
|
CFMutableDictionaryRef extensionMap = (CFMutableDictionaryRef)
|
|
[mutableClassMap_ objectForKey:containingMessageClass];
|
|
if (extensionMap == nil) {
|
|
// Use a custom dictionary here because the keys are numbers and conversion
|
|
// back and forth from NSNumber isn't worth the cost.
|
|
extensionMap = CFDictionaryCreateMutable(kCFAllocatorDefault, 0, NULL,
|
|
&kCFTypeDictionaryValueCallBacks);
|
|
[mutableClassMap_ setObject:(id)extensionMap
|
|
forKey:(id<NSCopying>)containingMessageClass];
|
|
CFRelease(extensionMap);
|
|
}
|
|
|
|
ssize_t key = extension.fieldNumber;
|
|
CFDictionarySetValue(extensionMap, (const void *)key, extension);
|
|
}
|
|
|
|
- (GPBExtensionDescriptor *)extensionForDescriptor:(GPBDescriptor *)descriptor
|
|
fieldNumber:(NSInteger)fieldNumber {
|
|
Class messageClass = descriptor.messageClass;
|
|
CFMutableDictionaryRef extensionMap = (CFMutableDictionaryRef)
|
|
[mutableClassMap_ objectForKey:messageClass];
|
|
ssize_t key = fieldNumber;
|
|
GPBExtensionDescriptor *result =
|
|
(extensionMap
|
|
? CFDictionaryGetValue(extensionMap, (const void *)key)
|
|
: nil);
|
|
return result;
|
|
}
|
|
|
|
static void CopyKeyValue(const void *key, const void *value, void *context) {
|
|
CFMutableDictionaryRef extensionMap = (CFMutableDictionaryRef)context;
|
|
CFDictionarySetValue(extensionMap, key, value);
|
|
}
|
|
|
|
- (void)addExtensions:(GPBExtensionRegistry *)registry {
|
|
if (registry == nil) {
|
|
// In the case where there are no extensions just ignore.
|
|
return;
|
|
}
|
|
NSMutableDictionary *otherClassMap = registry->mutableClassMap_;
|
|
[otherClassMap enumerateKeysAndObjectsUsingBlock:^(id key, id value, BOOL * stop) {
|
|
#pragma unused(stop)
|
|
Class containingMessageClass = key;
|
|
CFMutableDictionaryRef otherExtensionMap = (CFMutableDictionaryRef)value;
|
|
|
|
CFMutableDictionaryRef extensionMap = (CFMutableDictionaryRef)
|
|
[mutableClassMap_ objectForKey:containingMessageClass];
|
|
if (extensionMap == nil) {
|
|
extensionMap = CFDictionaryCreateMutableCopy(kCFAllocatorDefault, 0, otherExtensionMap);
|
|
[mutableClassMap_ setObject:(id)extensionMap
|
|
forKey:(id<NSCopying>)containingMessageClass];
|
|
CFRelease(extensionMap);
|
|
} else {
|
|
CFDictionaryApplyFunction(otherExtensionMap, CopyKeyValue, extensionMap);
|
|
}
|
|
}];
|
|
}
|
|
|
|
#pragma clang diagnostic pop
|
|
|
|
@end
|