1// [The "BSD licence"]
2// Copyright (c) 2006-2007 Kay Roepke 2010 Alan Condit
3// All rights reserved.
4//
5// Redistribution and use in source and binary forms, with or without
6// modification, are permitted provided that the following conditions
7// are met:
8// 1. Redistributions of source code must retain the above copyright
9//    notice, this list of conditions and the following disclaimer.
10// 2. Redistributions in binary form must reproduce the above copyright
11//    notice, this list of conditions and the following disclaimer in the
12//    documentation and/or other materials provided with the distribution.
13// 3. The name of the author may not be used to endorse or promote products
14//    derived from this software without specific prior written permission.
15//
16// THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
17// IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
18// OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
19// IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
20// INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
21// NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
22// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
23// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
24// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
25// THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
26
27#import "ANTLRRecognitionException.h"
28#import "ANTLRTokenStream.h"
29#import "ANTLRTreeNodeStream.h"
30
31@implementation ANTLRRecognitionException
32
33@synthesize input;
34@synthesize token;
35@synthesize node;
36@synthesize line;
37@synthesize charPositionInLine;
38
39+ (id) newException
40{
41	return [[ANTLRRecognitionException alloc] init];
42}
43
44+ (id) newException:(id<ANTLRIntStream>) anInputStream
45{
46	return [[ANTLRRecognitionException alloc] initWithStream:anInputStream];
47}
48
49+ (id) newException:(id<ANTLRIntStream>) anInputStream reason:(NSString *)aReason
50{
51	return [[ANTLRRecognitionException alloc] initWithStream:anInputStream reason:aReason];
52}
53
54- (id) init
55{
56	self = [super initWithName:@"Recognition Exception" reason:@"Recognition Exception" userInfo:nil];
57	if ( self != nil ) {
58	}
59	return self;
60}
61
62- (id) initWithStream:(id<ANTLRIntStream>)anInputStream reason:(NSString *)aReason
63{
64	self = [super initWithName:NSStringFromClass([self class]) reason:aReason userInfo:nil];
65	if ( self != nil ) {
66		[self setStream:anInputStream];
67		index = input.index;
68		
69		Class inputClass = [input class];
70		if ([inputClass conformsToProtocol:@protocol(ANTLRTokenStream)]) {
71			[self setToken:[(id<ANTLRTokenStream>)input LT:1]];
72			line = token.line;
73			charPositionInLine = token.charPositionInLine;
74		} else if ([inputClass conformsToProtocol:@protocol(ANTLRCharStream)]) {
75			c = (unichar)[input LA:1];
76			line = ((id<ANTLRCharStream>)input).line;
77			charPositionInLine = ((id<ANTLRCharStream>)input).charPositionInLine;
78		} else if ([inputClass conformsToProtocol:@protocol(ANTLRTreeNodeStream)]) {
79			[self setNode:[(id<ANTLRTreeNodeStream>)input LT:1]];
80			line = [node line];
81			charPositionInLine = [node charPositionInLine];
82		} else {
83			c = (unichar)[input LA:1];
84		}
85	}
86	return self;
87}
88
89- (id) initWithStream:(id<ANTLRIntStream>)anInputStream
90{
91	self = [super initWithName:NSStringFromClass([self class]) reason:@"Runtime Exception" userInfo:nil];
92	if ( self != nil ) {
93	}
94	return self;
95}
96
97- (id) initWithName:(NSString *)aName reason:(NSString *)aReason userInfo:(NSDictionary *)aUserInfo
98{
99	self = [super initWithName:aName reason:aReason userInfo:aUserInfo];
100	if ( self != nil ) {
101    }
102    return self;
103}
104
105- (void) dealloc
106{
107#ifdef DEBUG_DEALLOC
108    NSLog( @"called dealloc in ANTLRRecognitionException" );
109#endif
110	if ( input ) [input release];
111	if ( token ) [token release];
112	if ( node ) [node release];
113	[super dealloc];
114}
115
116- (NSInteger) unexpectedType
117{
118	if (token) {
119		return token.type;
120    } else if (node) {
121        return [node type];
122	} else {
123		return c;
124	}
125}
126
127- (id<ANTLRToken>)getUnexpectedToken
128{
129    return token;
130}
131
132- (NSString *) description
133{
134	//NSMutableString *desc = [[NSMutableString alloc] initWithString:NSStringFromClass([self class])];
135	NSMutableString *desc = [NSMutableString stringWithString:[self className]];
136	if (token) {
137		[desc appendFormat:@" token:%@", token];
138	} else if (node) {
139		[desc appendFormat:@" node:%@", node];
140	} else {
141		[desc appendFormat:@" char:%c", c];
142	}
143	[desc appendFormat:@" line:%d position:%d", line, charPositionInLine];
144	return desc;
145}
146
147//---------------------------------------------------------- 
148//  input 
149//---------------------------------------------------------- 
150- (id<ANTLRIntStream>) getStream
151{
152    return input; 
153}
154
155- (void) setStream: (id<ANTLRIntStream>) aStream
156{
157    if ( input != aStream ) {
158        if ( input ) [input release];
159        if ( aStream ) [aStream retain];
160        input = aStream;
161    }
162}
163
164//---------------------------------------------------------- 
165//  token 
166//---------------------------------------------------------- 
167- (id<ANTLRToken>) getToken
168{
169    return token; 
170}
171
172- (void) setToken: (id<ANTLRToken>) aToken
173{
174    if (token != aToken) {
175        if ( token ) [token release];
176        if ( aToken ) [aToken retain];
177        token = aToken;
178    }
179}
180
181//---------------------------------------------------------- 
182//  node 
183//---------------------------------------------------------- 
184- (id<ANTLRBaseTree>) getNode
185{
186    return node; 
187}
188
189- (void) setNode: (id<ANTLRBaseTree>) aNode
190{
191    if (node != aNode) {
192        if ( node ) [node release];
193        if ( aNode ) [aNode retain];
194        node = aNode;
195    }
196}
197
198- (NSString *)getMessage
199{
200    return @"Fix getMessage in ANTLRRecognitionException";
201}
202
203- (NSUInteger)charPositionInLine
204{
205    return charPositionInLine;
206}
207
208- (void)setCharPositionInLine:(NSUInteger)aPos
209{
210    charPositionInLine = aPos;
211}
212
213@synthesize index;
214@synthesize c;
215@end
216