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Fallback on NSJSONSerialization only after checking for 3rd-party libraries

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This commit is contained in:
Mattt Thompson 2011-11-08 20:02:08 -06:00
parent 206f6ff1f6
commit fb59b75493
1 changed files with 32 additions and 30 deletions
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58
AFNetworking/AFJSONUtilities.h
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@ -27,25 +27,14 @@
static inline NSData * AFJSONEncode(id object, NSError **error) { static inline NSData * AFJSONEncode(id object, NSError **error) {
NSData *data = nil; NSData *data = nil;
id _NSJSONSerializationClass = NSClassFromString(@"NSJSONSerialization");
SEL _NSJSONSerializationSelector = NSSelectorFromString(@"dataWithJSONObject:options:error:");
SEL _JSONKitSelector = NSSelectorFromString(@"JSONDataWithOptions:error:"); SEL _JSONKitSelector = NSSelectorFromString(@"JSONDataWithOptions:error:");
SEL _SBJSONSelector = NSSelectorFromString(@"JSONRepresentation"); SEL _SBJSONSelector = NSSelectorFromString(@"JSONRepresentation");
SEL _YAJLSelector = NSSelectorFromString(@"yajl_JSONString"); SEL _YAJLSelector = NSSelectorFromString(@"yajl_JSONString");
if (_NSJSONSerializationClass && [_NSJSONSerializationClass respondsToSelector:_NSJSONSerializationSelector]) { id _NSJSONSerializationClass = NSClassFromString(@"NSJSONSerialization");
NSInvocation *invocation = [NSInvocation invocationWithMethodSignature:[_NSJSONSerializationClass methodSignatureForSelector:_NSJSONSerializationSelector]]; SEL _NSJSONSerializationSelector = NSSelectorFromString(@"dataWithJSONObject:options:error:");
invocation.target = _NSJSONSerializationClass;
invocation.selector = _NSJSONSerializationSelector;
[invocation setArgument:&object atIndex:2]; // arguments 0 and 1 are self and _cmd respectively, automatically set by NSInvocation if (_JSONKitSelector && [data respondsToSelector:_JSONKitSelector]) {
NSUInteger writeOptions = 0;
[invocation setArgument:&writeOptions atIndex:3];
[invocation setArgument:error atIndex:4];
[invocation invoke];
[invocation getReturnValue:&data];
} else if (_JSONKitSelector && [data respondsToSelector:_JSONKitSelector]) {
NSInvocation *invocation = [NSInvocation invocationWithMethodSignature:[data methodSignatureForSelector:_JSONKitSelector]]; NSInvocation *invocation = [NSInvocation invocationWithMethodSignature:[data methodSignatureForSelector:_JSONKitSelector]];
invocation.target = data; invocation.target = data;
invocation.selector = _JSONKitSelector; invocation.selector = _JSONKitSelector;
@ -81,6 +70,18 @@ static inline NSData * AFJSONEncode(id object, NSError **error) {
@catch (NSException *exception) { @catch (NSException *exception) {
*error = [[[NSError alloc] initWithDomain:NSStringFromClass([exception class]) code:0 userInfo:[exception userInfo]] autorelease]; *error = [[[NSError alloc] initWithDomain:NSStringFromClass([exception class]) code:0 userInfo:[exception userInfo]] autorelease];
} }
} else if (_NSJSONSerializationClass && [_NSJSONSerializationClass respondsToSelector:_NSJSONSerializationSelector]) {
NSInvocation *invocation = [NSInvocation invocationWithMethodSignature:[_NSJSONSerializationClass methodSignatureForSelector:_NSJSONSerializationSelector]];
invocation.target = _NSJSONSerializationClass;
invocation.selector = _NSJSONSerializationSelector;
[invocation setArgument:&object atIndex:2]; // arguments 0 and 1 are self and _cmd respectively, automatically set by NSInvocation
NSUInteger writeOptions = 0;
[invocation setArgument:&writeOptions atIndex:3];
[invocation setArgument:error atIndex:4];
[invocation invoke];
[invocation getReturnValue:&data];
} }
return data; return data;
@ -89,25 +90,14 @@ static inline NSData * AFJSONEncode(id object, NSError **error) {
static inline id AFJSONDecode(NSData *data, NSError **error) { static inline id AFJSONDecode(NSData *data, NSError **error) {
id JSON = nil; id JSON = nil;
id _NSJSONSerializationClass = NSClassFromString(@"NSJSONSerialization");
SEL _NSJSONSerializationSelector = NSSelectorFromString(@"JSONObjectWithData:options:error:");
SEL _JSONKitSelector = NSSelectorFromString(@"objectFromJSONDataWithParseOptions:error:"); SEL _JSONKitSelector = NSSelectorFromString(@"objectFromJSONDataWithParseOptions:error:");
SEL _SBJSONSelector = NSSelectorFromString(@"JSONValue"); SEL _SBJSONSelector = NSSelectorFromString(@"JSONValue");
SEL _YAJLSelector = NSSelectorFromString(@"yajl_JSONWithOptions:error:"); SEL _YAJLSelector = NSSelectorFromString(@"yajl_JSONWithOptions:error:");
if (_NSJSONSerializationClass && [_NSJSONSerializationClass respondsToSelector:_NSJSONSerializationSelector]) { id _NSJSONSerializationClass = NSClassFromString(@"NSJSONSerialization");
NSInvocation *invocation = [NSInvocation invocationWithMethodSignature:[_NSJSONSerializationClass methodSignatureForSelector:_NSJSONSerializationSelector]]; SEL _NSJSONSerializationSelector = NSSelectorFromString(@"JSONObjectWithData:options:error:");
invocation.target = _NSJSONSerializationClass;
invocation.selector = _NSJSONSerializationSelector;
[invocation setArgument:&data atIndex:2]; // arguments 0 and 1 are self and _cmd respectively, automatically set by NSInvocation if (_JSONKitSelector && [data respondsToSelector:_JSONKitSelector]) {
NSUInteger readOptions = 0;
[invocation setArgument:&readOptions atIndex:3];
[invocation setArgument:error atIndex:4];
[invocation invoke];
[invocation getReturnValue:&JSON];
} else if (_JSONKitSelector && [data respondsToSelector:_JSONKitSelector]) {
NSInvocation *invocation = [NSInvocation invocationWithMethodSignature:[data methodSignatureForSelector:_JSONKitSelector]]; NSInvocation *invocation = [NSInvocation invocationWithMethodSignature:[data methodSignatureForSelector:_JSONKitSelector]];
invocation.target = data; invocation.target = data;
invocation.selector = _JSONKitSelector; invocation.selector = _JSONKitSelector;
@ -134,6 +124,18 @@ static inline id AFJSONDecode(NSData *data, NSError **error) {
[invocation setArgument:&yajlParserOptions atIndex:2]; // arguments 0 and 1 are self and _cmd respectively, automatically set by NSInvocation [invocation setArgument:&yajlParserOptions atIndex:2]; // arguments 0 and 1 are self and _cmd respectively, automatically set by NSInvocation
[invocation setArgument:error atIndex:3]; [invocation setArgument:error atIndex:3];
[invocation invoke];
[invocation getReturnValue:&JSON];
} else if (_NSJSONSerializationClass && [_NSJSONSerializationClass respondsToSelector:_NSJSONSerializationSelector]) {
NSInvocation *invocation = [NSInvocation invocationWithMethodSignature:[_NSJSONSerializationClass methodSignatureForSelector:_NSJSONSerializationSelector]];
invocation.target = _NSJSONSerializationClass;
invocation.selector = _NSJSONSerializationSelector;
[invocation setArgument:&data atIndex:2]; // arguments 0 and 1 are self and _cmd respectively, automatically set by NSInvocation
NSUInteger readOptions = 0;
[invocation setArgument:&readOptions atIndex:3];
[invocation setArgument:error atIndex:4];
[invocation invoke]; [invocation invoke];
[invocation getReturnValue:&JSON]; [invocation getReturnValue:&JSON];
} }