mirror of https://github.com/oxen-io/session-ios
				
				
				
			
			You cannot select more than 25 topics
			Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
		
		
		
		
		
			
		
			
				
	
	
		
			107 lines
		
	
	
		
			3.1 KiB
		
	
	
	
		
			Objective-C
		
	
			
		
		
	
	
			107 lines
		
	
	
		
			3.1 KiB
		
	
	
	
		
			Objective-C
		
	
| // Copyright 2008 Cyrus Najmabadi
 | |
| //
 | |
| // Licensed under the Apache License, Version 2.0 (the "License");
 | |
| // you may not use this file except in compliance with the License.
 | |
| // You may obtain a copy of the License at
 | |
| //
 | |
| //     http://www.apache.org/licenses/LICENSE-2.0
 | |
| //
 | |
| // Unless required by applicable law or agreed to in writing, software
 | |
| // distributed under the License is distributed on an "AS IS" BASIS,
 | |
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 | |
| // See the License for the specific language governing permissions and
 | |
| // limitations under the License.
 | |
| 
 | |
| #import "ExtendableMessage.h"
 | |
| 
 | |
| #import "ExtensionField.h"
 | |
| 
 | |
| @implementation PBExtendableMessage
 | |
| 
 | |
| @synthesize extensionMap;
 | |
| @synthesize extensionRegistry;
 | |
| 
 | |
| - (void) dealloc {
 | |
|   self.extensionMap = nil;
 | |
|   self.extensionRegistry = nil;
 | |
| }
 | |
| 
 | |
| 
 | |
| - (BOOL) isInitialized:(id) object {
 | |
|   if ([object isKindOfClass:[NSArray class]]) {
 | |
|     for (id child in object) {
 | |
|       if (![self isInitialized:child]) {
 | |
|         return NO;
 | |
|       }
 | |
|     }
 | |
|   } else if ([object conformsToProtocol:@protocol(PBMessage)]) {
 | |
|     return [object isInitialized];
 | |
|   }
 | |
| 
 | |
|   return YES;
 | |
| }
 | |
| 
 | |
| 
 | |
| - (BOOL) extensionsAreInitialized {
 | |
|   return [self isInitialized:extensionMap.allValues];
 | |
| }
 | |
| 
 | |
| 
 | |
| - (id) getExtension:(id<PBExtensionField>) extension {
 | |
|   [self ensureExtensionIsRegistered:extension];
 | |
|   id value = [extensionMap objectForKey:[NSNumber numberWithInt:[extension fieldNumber]]];
 | |
|   if (value != nil) {
 | |
|     return value;
 | |
|   }
 | |
| 
 | |
|   return [extension defaultValue];
 | |
| }
 | |
| 
 | |
| 
 | |
| - (void) ensureExtensionIsRegistered:(id<PBExtensionField>) extension {
 | |
|   if ([extension extendedClass] != [self class]) {
 | |
|     @throw [NSException exceptionWithName:@"IllegalArgument" reason:@"Trying to use an extension for another type" userInfo:nil];
 | |
|   }
 | |
| 
 | |
|   if (extensionRegistry == nil) {
 | |
|     self.extensionRegistry = [NSMutableDictionary dictionary];
 | |
|   }
 | |
|   [extensionRegistry setObject:extension
 | |
|                         forKey:[NSNumber numberWithInt:[extension fieldNumber]]];
 | |
| }
 | |
| 
 | |
| 
 | |
| - (BOOL) hasExtension:(id<PBExtensionField>) extension {
 | |
|   return nil != [extensionMap objectForKey:[NSNumber numberWithInt:[extension fieldNumber]]];
 | |
| }
 | |
| 
 | |
| 
 | |
| - (void) writeExtensionsToCodedOutputStream:(PBCodedOutputStream*) output
 | |
|                                        from:(int32_t) startInclusive
 | |
|                                          to:(int32_t) endExclusive {
 | |
|   // man, i really wish Cocoa had a Sorted/TreeMap
 | |
|   NSArray* sortedKeys = [extensionMap.allKeys sortedArrayUsingSelector:@selector(compare:)];
 | |
|   for (NSNumber* number in sortedKeys) {
 | |
|     int32_t fieldNumber = [number intValue];
 | |
|     if (fieldNumber >= startInclusive && fieldNumber < endExclusive) {
 | |
|       id<PBExtensionField> extension = [extensionRegistry objectForKey:number];
 | |
|       id value = [extensionMap objectForKey:number];
 | |
|       [extension writeValue:value includingTagToCodedOutputStream:output];
 | |
|     }
 | |
|   }
 | |
| }
 | |
| 
 | |
| 
 | |
| - (int32_t) extensionsSerializedSize {
 | |
|   int32_t size = 0;
 | |
|   for (NSNumber* number in extensionMap) {
 | |
|     id<PBExtensionField> extension = [extensionRegistry objectForKey:number];
 | |
|     id value = [extensionMap objectForKey:number];
 | |
|     size += [extension computeSerializedSizeIncludingTag:value];
 | |
|   }
 | |
| 
 | |
|   return size;
 | |
| }
 | |
| 
 | |
| @end
 |