antlr-3.4/runtime/ObjC/Framework/ANTLRMismatchedTokenException.m

// [The "BSD licence"]
// Copyright (c) 2006-2007 Kay Roepke 2010 Alan Condit
// All rights reserved.
//
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// modification, are permitted provided that the following conditions
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//    notice, this list of conditions and the following disclaimer.
// 2. Redistributions in binary form must reproduce the above copyright
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#import "ANTLRMismatchedTokenException.h"


@implementation ANTLRMismatchedTokenException

@synthesize expecting;
@synthesize expectingChar;
@synthesize isTokenType;


+ (id) newException:(NSInteger)expectedTokenType Stream:(id<ANTLRIntStream>)anInput
{
	return [[ANTLRMismatchedTokenException alloc] initWithTokenType:expectedTokenType Stream:anInput];
}

+ (id) newExceptionMissing:(NSInteger)expectedTokenType
                                        Stream:(id<ANTLRIntStream>)anInput
                                         Token:(id<ANTLRToken>)inserted
{
	return [[ANTLRMismatchedTokenException alloc] initWithTokenType:expectedTokenType Stream:anInput Token:inserted];
}

+ (id) newExceptionChar:(unichar) expectedCharacter Stream:(id<ANTLRIntStream>)anInput
{
	return [[ANTLRMismatchedTokenException alloc] initWithCharacter:expectedCharacter Stream:anInput];
}

+ (id) newExceptionStream:(id<ANTLRIntStream>)anInput Exception:(NSException *)e Follow:(ANTLRBitSet *) follow
{
	return [[ANTLRMismatchedTokenException alloc] initWithStream:anInput];
}

-(id) initWithTokenType:(NSInteger)expectedTokenType Stream:(id<ANTLRIntStream>)anInput
{
	if ((self = [super initWithStream:anInput]) != nil) {
		expecting = expectedTokenType;
		isTokenType = YES;
	}
	return self;
}

-(id) initWithTokenType:(NSInteger)expectedTokenType
                 Stream:(id<ANTLRIntStream>)anInput
                  Token:(id<ANTLRToken>)inserted
{
	if ((self = [super initWithStream:anInput]) != nil) {
		expecting = expectedTokenType;
		isTokenType = YES;
	}
	return self;
}

- (id) initWithCharacter:(unichar) expectedCharacter Stream:(id<ANTLRIntStream>)anInput
{
	if ((self = [super initWithStream:anInput]) != nil) {
		expectingChar = expectedCharacter;
		isTokenType = NO;
	}
	return self;
}

- (NSString *) description
{
	NSMutableString *desc = (NSMutableString *)[super description];
	if (isTokenType) {
		[desc appendFormat:@" expected:%d got:%d", expecting, [self unexpectedType]];
	} else {
		[desc appendFormat:@" expected:%c got:%c", expectingChar, (unichar)[self unexpectedType]];
	}
	return desc;
}

@end