mirror of
https://github.com/samuelclay/NewsBlur.git
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147 lines
4.1 KiB
Objective-C
Executable file
147 lines
4.1 KiB
Objective-C
Executable file
/*
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Copyright (c) 2010, Stig Brautaset.
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All rights reserved.
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Redistribution and use in source and binary forms, with or without
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modification, are permitted provided that the following conditions are
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met:
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Redistributions of source code must retain the above copyright
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notice, this list of conditions and the following disclaimer.
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Redistributions in binary form must reproduce the above copyright
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notice, this list of conditions and the following disclaimer in the
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documentation and/or other materials provided with the distribution.
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Neither the name of the the author nor the names of its contributors
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may be used to endorse or promote products derived from this software
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without specific prior written permission.
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
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IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
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PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#if !__has_feature(objc_arc)
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#error "This source file must be compiled with ARC enabled!"
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#endif
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#import "SBJson4StreamWriterState.h"
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#import "SBJson4StreamWriter.h"
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#define SINGLETON \
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+ (id)sharedInstance { \
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static id state = nil; \
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if (!state) { \
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@synchronized(self) { \
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if (!state) state = [[self alloc] init]; \
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} \
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} \
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return state; \
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}
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@implementation SBJson4StreamWriterState
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+ (id)sharedInstance { return nil; }
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- (BOOL)isInvalidState:(SBJson4StreamWriter *)writer { return NO; }
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- (void)appendSeparator:(SBJson4StreamWriter *)writer {}
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- (BOOL)expectingKey:(SBJson4StreamWriter *)writer { return NO; }
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- (void)transitionState:(SBJson4StreamWriter *)writer {}
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- (void)appendWhitespace:(SBJson4StreamWriter *)writer {
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[writer appendBytes:"\n" length:1];
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for (NSUInteger i = 0; i < writer.stateStack.count; i++)
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[writer appendBytes:" " length:2];
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}
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@end
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@implementation SBJson4StreamWriterStateObjectStart
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SINGLETON
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- (void)transitionState:(SBJson4StreamWriter *)writer {
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writer.state = [SBJson4StreamWriterStateObjectValue sharedInstance];
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}
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- (BOOL)expectingKey:(SBJson4StreamWriter *)writer {
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writer.error = @"JSON object key must be string";
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return YES;
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}
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@end
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@implementation SBJson4StreamWriterStateObjectKey
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SINGLETON
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- (void)appendSeparator:(SBJson4StreamWriter *)writer {
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[writer appendBytes:"," length:1];
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}
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@end
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@implementation SBJson4StreamWriterStateObjectValue
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SINGLETON
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- (void)appendSeparator:(SBJson4StreamWriter *)writer {
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[writer appendBytes:":" length:1];
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}
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- (void)transitionState:(SBJson4StreamWriter *)writer {
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writer.state = [SBJson4StreamWriterStateObjectKey sharedInstance];
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}
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- (void)appendWhitespace:(SBJson4StreamWriter *)writer {
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[writer appendBytes:" " length:1];
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}
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@end
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@implementation SBJson4StreamWriterStateArrayStart
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SINGLETON
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- (void)transitionState:(SBJson4StreamWriter *)writer {
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writer.state = [SBJson4StreamWriterStateArrayValue sharedInstance];
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}
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@end
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@implementation SBJson4StreamWriterStateArrayValue
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SINGLETON
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- (void)appendSeparator:(SBJson4StreamWriter *)writer {
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[writer appendBytes:"," length:1];
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}
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@end
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@implementation SBJson4StreamWriterStateStart
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SINGLETON
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- (void)transitionState:(SBJson4StreamWriter *)writer {
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writer.state = [SBJson4StreamWriterStateComplete sharedInstance];
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}
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- (void)appendSeparator:(SBJson4StreamWriter *)writer {
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}
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@end
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@implementation SBJson4StreamWriterStateComplete
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SINGLETON
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- (BOOL)isInvalidState:(SBJson4StreamWriter *)writer {
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writer.error = @"Stream is closed";
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return YES;
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}
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@end
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@implementation SBJson4StreamWriterStateError
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SINGLETON
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@end
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