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Diffstat (limited to 'SBJsonStreamWriterState.m')
-rwxr-xr-x | SBJsonStreamWriterState.m | 139 |
1 files changed, 139 insertions, 0 deletions
diff --git a/SBJsonStreamWriterState.m b/SBJsonStreamWriterState.m new file mode 100755 index 0000000..9f04cac --- /dev/null +++ b/SBJsonStreamWriterState.m @@ -0,0 +1,139 @@ +/* + Copyright (c) 2010, Stig Brautaset. + All rights reserved. + + 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 the the author 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 + HOLDER 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 "SBJsonStreamWriterState.h" +#import "SBJsonStreamWriter.h" + +#define SINGLETON \ ++ (id)sharedInstance { \ + static id state; \ + if (!state) state = [[self alloc] init]; \ + return state; \ +} + + +@implementation SBJsonStreamWriterState ++ (id)sharedInstance { return nil; } +- (BOOL)isInvalidState:(SBJsonStreamWriter*)writer { return NO; } +- (void)appendSeparator:(SBJsonStreamWriter*)writer {} +- (BOOL)expectingKey:(SBJsonStreamWriter*)writer { return NO; } +- (void)transitionState:(SBJsonStreamWriter *)writer {} +- (void)appendWhitespace:(SBJsonStreamWriter*)writer { + [writer appendBytes:"\n" length:1]; + for (NSUInteger i = 0; i < writer.stateStack.count; i++) + [writer appendBytes:" " length:2]; +} +@end + +@implementation SBJsonStreamWriterStateObjectStart + +SINGLETON + +- (void)transitionState:(SBJsonStreamWriter *)writer { + writer.state = [SBJsonStreamWriterStateObjectValue sharedInstance]; +} +- (BOOL)expectingKey:(SBJsonStreamWriter *)writer { + writer.error = @"JSON object key must be string"; + return YES; +} +@end + +@implementation SBJsonStreamWriterStateObjectKey + +SINGLETON + +- (void)appendSeparator:(SBJsonStreamWriter *)writer { + [writer appendBytes:"," length:1]; +} +@end + +@implementation SBJsonStreamWriterStateObjectValue + +SINGLETON + +- (void)appendSeparator:(SBJsonStreamWriter *)writer { + [writer appendBytes:":" length:1]; +} +- (void)transitionState:(SBJsonStreamWriter *)writer { + writer.state = [SBJsonStreamWriterStateObjectKey sharedInstance]; +} +- (void)appendWhitespace:(SBJsonStreamWriter *)writer { + [writer appendBytes:" " length:1]; +} +@end + +@implementation SBJsonStreamWriterStateArrayStart + +SINGLETON + +- (void)transitionState:(SBJsonStreamWriter *)writer { + writer.state = [SBJsonStreamWriterStateArrayValue sharedInstance]; +} +@end + +@implementation SBJsonStreamWriterStateArrayValue + +SINGLETON + +- (void)appendSeparator:(SBJsonStreamWriter *)writer { + [writer appendBytes:"," length:1]; +} +@end + +@implementation SBJsonStreamWriterStateStart + +SINGLETON + + +- (void)transitionState:(SBJsonStreamWriter *)writer { + writer.state = [SBJsonStreamWriterStateComplete sharedInstance]; +} +- (void)appendSeparator:(SBJsonStreamWriter *)writer { +} +@end + +@implementation SBJsonStreamWriterStateComplete + +SINGLETON + +- (BOOL)isInvalidState:(SBJsonStreamWriter*)writer { + writer.error = @"Stream is closed"; + return YES; +} +@end + +@implementation SBJsonStreamWriterStateError + +SINGLETON + +@end + |