Add method to the (internal) SBJsonStreamParserState abstract class to avoid an isKindOfClass: check

Author: stig

Classes/SBJsonStreamParser.m

@@ -172,7 +172,7 @@ - (SBJsonStreamParserStatus)parse:(NSData *)data_ {
 
 	for (;;) {
 
-        if ([state isKindOfClass:[SBJsonStreamParserStateError class]])
+        if ([state isError])
             return SBJsonStreamParserError;
 
         NSObject *token;

Classes/SBJsonStreamParserState.h

@@ -37,10 +37,12 @@
 
 @interface SBJsonStreamParserState : NSObject
 + (id)sharedInstance;
+
 - (BOOL)parser:(SBJsonStreamParser*)parser shouldAcceptToken:(sbjson_token_t)token;
 - (SBJsonStreamParserStatus)parserShouldReturn:(SBJsonStreamParser*)parser;
 - (void)parser:(SBJsonStreamParser*)parser shouldTransitionTo:(sbjson_token_t)tok;
 - (BOOL)needKey;
+- (BOOL)isError;
 
 - (NSString*)name;
 

Classes/SBJsonStreamParserState.m

@@ -62,6 +62,10 @@ - (NSString*)name {
 	return @"<aaiie!>";
 }
 
+- (BOOL)isError {
+    return NO;
+}
+
 @end
 
 #pragma mark -
@@ -136,6 +140,10 @@ - (SBJsonStreamParserStatus)parserShouldReturn:(SBJsonStreamParser*)parser {
 	return SBJsonStreamParserError;
 }
 
+- (BOOL)isError {
+    return YES;
+}
+
 @end
 
 #pragma mark -