148 lines
7.1 KiB
Objective-C
148 lines
7.1 KiB
Objective-C
// AFJSONUtilities.h
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//
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// Copyright (c) 2011 Gowalla (http://gowalla.com/)
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//
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// Permission is hereby granted, free of charge, to any person obtaining a copy
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// of this software and associated documentation files (the "Software"), to deal
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// in the Software without restriction, including without limitation the rights
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// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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// copies of the Software, and to permit persons to whom the Software is
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// furnished to do so, subject to the following conditions:
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//
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// The above copyright notice and this permission notice shall be included in
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// all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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// THE SOFTWARE.
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#import <Foundation/Foundation.h>
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#include <Availability.h>
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static inline NSData * AFJSONEncode(id object, NSError **error) {
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NSData *data = nil;
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SEL _JSONKitSelector = NSSelectorFromString(@"JSONDataWithOptions:error:");
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SEL _SBJSONSelector = NSSelectorFromString(@"JSONRepresentation");
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SEL _YAJLSelector = NSSelectorFromString(@"yajl_JSONString");
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id _NSJSONSerializationClass = NSClassFromString(@"NSJSONSerialization");
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SEL _NSJSONSerializationSelector = NSSelectorFromString(@"dataWithJSONObject:options:error:");
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if (_JSONKitSelector && [data respondsToSelector:_JSONKitSelector]) {
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NSInvocation *invocation = [NSInvocation invocationWithMethodSignature:[data methodSignatureForSelector:_JSONKitSelector]];
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invocation.target = data;
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invocation.selector = _JSONKitSelector;
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NSUInteger serializeOptionFlags = 0;
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[invocation setArgument:&serializeOptionFlags atIndex:2]; // arguments 0 and 1 are self and _cmd respectively, automatically set by NSInvocation
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[invocation setArgument:error atIndex:3];
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[invocation invoke];
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[invocation getReturnValue:&data];
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} else if (_SBJSONSelector && [data respondsToSelector:_SBJSONSelector]) {
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NSString *JSONString = nil;
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NSInvocation *invocation = [NSInvocation invocationWithMethodSignature:[data methodSignatureForSelector:_SBJSONSelector]];
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invocation.target = data;
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invocation.selector = _SBJSONSelector;
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[invocation invoke];
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[invocation getReturnValue:&data];
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data = [JSONString dataUsingEncoding:NSUTF8StringEncoding];
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} else if (_YAJLSelector && [data respondsToSelector:_YAJLSelector]) {
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@try {
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NSString *JSONString = nil;
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NSInvocation *invocation = [NSInvocation invocationWithMethodSignature:[data methodSignatureForSelector:_YAJLSelector]];
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invocation.target = data;
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invocation.selector = _YAJLSelector;
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[invocation invoke];
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[invocation getReturnValue:&JSONString];
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data = [JSONString dataUsingEncoding:NSUTF8StringEncoding];
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}
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@catch (NSException *exception) {
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*error = [[[NSError alloc] initWithDomain:NSStringFromClass([exception class]) code:0 userInfo:[exception userInfo]] autorelease];
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}
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} else if (_NSJSONSerializationClass && [_NSJSONSerializationClass respondsToSelector:_NSJSONSerializationSelector]) {
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NSInvocation *invocation = [NSInvocation invocationWithMethodSignature:[_NSJSONSerializationClass methodSignatureForSelector:_NSJSONSerializationSelector]];
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invocation.target = _NSJSONSerializationClass;
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invocation.selector = _NSJSONSerializationSelector;
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[invocation setArgument:&object atIndex:2]; // arguments 0 and 1 are self and _cmd respectively, automatically set by NSInvocation
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NSUInteger writeOptions = 0;
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[invocation setArgument:&writeOptions atIndex:3];
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[invocation setArgument:error atIndex:4];
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[invocation invoke];
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[invocation getReturnValue:&data];
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}
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return data;
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}
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static inline id AFJSONDecode(NSData *data, NSError **error) {
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id JSON = nil;
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SEL _JSONKitSelector = NSSelectorFromString(@"objectFromJSONDataWithParseOptions:error:");
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SEL _SBJSONSelector = NSSelectorFromString(@"JSONValue");
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SEL _YAJLSelector = NSSelectorFromString(@"yajl_JSONWithOptions:error:");
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id _NSJSONSerializationClass = NSClassFromString(@"NSJSONSerialization");
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SEL _NSJSONSerializationSelector = NSSelectorFromString(@"JSONObjectWithData:options:error:");
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if (_JSONKitSelector && [data respondsToSelector:_JSONKitSelector]) {
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NSInvocation *invocation = [NSInvocation invocationWithMethodSignature:[data methodSignatureForSelector:_JSONKitSelector]];
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invocation.target = data;
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invocation.selector = _JSONKitSelector;
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NSUInteger parseOptionFlags = 0;
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[invocation setArgument:&parseOptionFlags atIndex:2]; // arguments 0 and 1 are self and _cmd respectively, automatically set by NSInvocation
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[invocation setArgument:error atIndex:3];
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[invocation invoke];
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[invocation getReturnValue:&JSON];
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} else if (_SBJSONSelector && [data respondsToSelector:_SBJSONSelector]) {
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NSInvocation *invocation = [NSInvocation invocationWithMethodSignature:[data methodSignatureForSelector:_SBJSONSelector]];
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invocation.target = data;
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invocation.selector = _SBJSONSelector;
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[invocation invoke];
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[invocation getReturnValue:&JSON];
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} else if (_YAJLSelector && [data respondsToSelector:_YAJLSelector]) {
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NSInvocation *invocation = [NSInvocation invocationWithMethodSignature:[data methodSignatureForSelector:_YAJLSelector]];
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invocation.target = data;
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invocation.selector = _YAJLSelector;
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NSUInteger yajlParserOptions = 0;
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[invocation setArgument:&yajlParserOptions atIndex:2]; // arguments 0 and 1 are self and _cmd respectively, automatically set by NSInvocation
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[invocation setArgument:error atIndex:3];
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[invocation invoke];
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[invocation getReturnValue:&JSON];
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} else if (_NSJSONSerializationClass && [_NSJSONSerializationClass respondsToSelector:_NSJSONSerializationSelector]) {
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NSInvocation *invocation = [NSInvocation invocationWithMethodSignature:[_NSJSONSerializationClass methodSignatureForSelector:_NSJSONSerializationSelector]];
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invocation.target = _NSJSONSerializationClass;
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invocation.selector = _NSJSONSerializationSelector;
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[invocation setArgument:&data atIndex:2]; // arguments 0 and 1 are self and _cmd respectively, automatically set by NSInvocation
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NSUInteger readOptions = 0;
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[invocation setArgument:&readOptions atIndex:3];
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[invocation setArgument:error atIndex:4];
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[invocation invoke];
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[invocation getReturnValue:&JSON];
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}
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return JSON;
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}
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