Home | History | Annotate | Download | only in Framework 
      1 // [The "BSD licence"]
      2 // Copyright (c) 2006-2007 Kay Roepke
      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 "ANTLRDebugTreeParser.h"
     28 
     29 
     30 @implementation ANTLRDebugTreeParser
     31 
     32 - (id) initWithTreeNodeStream:(id<ANTLRTreeNodeStream>)theStream
     33 {
     34 	return [self initWithTreeNodeStream:theStream debugListener:nil debuggerPort:-1];
     35 }
     36 
     37 - (id) initWithTreeNodeStream:(id<ANTLRTreeNodeStream>)theStream
     38 				 debuggerPort:(NSInteger)portNumber
     39 {
     40 	return [self initWithTreeNodeStream:theStream debugListener:nil debuggerPort:portNumber];
     41 }
     42 
     43 - (id) initWithTreeNodeStream:(id<ANTLRTreeNodeStream>)theStream
     44 				debugListener:(id<ANTLRDebugEventListener>)theDebugListener
     45 				 debuggerPort:(NSInteger)portNumber
     46 {
     47 	id<ANTLRDebugEventListener,NSObject> debugger = nil;
     48 	id<ANTLRTreeNodeStream> treeNodeStream = nil;
     49 	if (theDebugListener) {
     50 		debugger = (id<ANTLRDebugEventListener>)theDebugListener;
     51 	} else {
     52 		debugger = [[ANTLRDebugEventProxy alloc] initWithGrammarName:[self grammarFileName] debuggerPort:portNumber];
     53 	}
     54 	if (theStream && ![theStream isKindOfClass:[ANTLRDebugTreeNodeStream class]]) {
     55 		treeNodeStream = [[ANTLRDebugTreeNodeStream alloc] initWithTreeNodeStream:theStream debugListener:debugger];
     56 	} else {
     57 		treeNodeStream = theStream;
     58 	}
     59 	self = [super initWithStream:treeNodeStream];
     60 	if ( self ) {
     61 		[self setDebugListener:debugger];
     62 		//[debugger release];
     63 		//[treeNodeStream release];
     64 		[debugListener waitForDebuggerConnection];
     65 	}
     66 	return self;
     67 }
     68 
     69 - (void) dealloc
     70 {
     71     [self setDebugListener: nil];
     72     [super dealloc];
     73 }
     74 
     75 - (id<ANTLRDebugEventListener>) debugListener
     76 {
     77     return debugListener; 
     78 }
     79 
     80 - (void) setDebugListener: (id<ANTLRDebugEventListener>) aDebugListener
     81 {
     82     if (debugListener != aDebugListener) {
     83         [(id<ANTLRDebugEventListener,NSObject>)aDebugListener retain];
     84         [(id<ANTLRDebugEventListener,NSObject>)debugListener release];
     85         debugListener = aDebugListener;
     86     }
     87 }
     88 
     89 #pragma mark -
     90 #pragma mark Overrides
     91 
     92 - (void) beginResync
     93 {
     94 	[debugListener beginResync];
     95 }
     96 
     97 - (void) endResync
     98 {
     99 	[debugListener endResync];
    100 }
    101 - (void)beginBacktracking:(NSInteger)level
    102 {
    103 	[debugListener beginBacktrack:level];
    104 }
    105 
    106 - (void)endBacktracking:(NSInteger)level wasSuccessful:(BOOL)successful
    107 {
    108 	[debugListener endBacktrack:level wasSuccessful:successful];
    109 }
    110 
    111 - (void) recoverFromMismatchedToken:(id<ANTLRIntStream>)inputStream 
    112 						  exception:(NSException *)e 
    113 						  tokenType:(ANTLRTokenType)ttype 
    114 							 follow:(ANTLRBitSet *)follow
    115 {
    116 #warning TODO: recoverFromMismatchedToken in debugger
    117 	[self recoverFromMismatchedToken:inputStream exception:e follow:follow];
    118 }
    119 
    120 - (void) recoverFromMismatchedSet:(id<ANTLRIntStream>)inputStream
    121 						exception:(NSException *)e
    122 						   follow:(ANTLRBitSet *)follow
    123 {
    124 #warning TODO: recoverFromMismatchedSet in debugger
    125 	[super recoverFromMismatchedSet:inputStream];
    126 }
    127 
    128 @end
    129