Source/BreakpointManager.m

   1 /*
   2  * MacGDBp
   3  * Copyright (c) 2007 - 2011, Blue Static <http://www.bluestatic.org>
   4  *
   5  * This program is free software; you can redistribute it and/or modify it under the terms of the GNU
   6  * General Public License as published by the Free Software Foundation; either version 2 of the
   7  * License, or (at your option) any later version.
   8  *
   9  * This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without
  10  * even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  11  * General Public License for more details.
  12  *
  13  * You should have received a copy of the GNU General Public License along with this program; if not,
  14  * write to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
  15  */
  16
  17 #import "BreakpointManager.h"
  18
  19 #import "AppDelegate.h"
  20 #import "PreferenceNames.h"
  21
  22 @interface BreakpointManager (Private)
  23 - (void)updateDisplaysForFile:(NSString*)file;
  24 @end
  25
  26 @implementation BreakpointManager {
  27   NSMutableArray* _breakpoints;
  28   NSMutableArray* _savedBreakpoints;
  29
  30   DebuggerBackEnd* _connection;
  31 }
  32
  33 - (id)init
  34 {
  35   if (self = [super init])
  36   {
  37     _breakpoints = [[NSMutableArray alloc] init];
  38     _savedBreakpoints = [[NSMutableArray alloc] init];
  39
  40     NSArray* savedBreakpoints = [[NSUserDefaults standardUserDefaults] arrayForKey:kPrefBreakpoints];
  41     if (savedBreakpoints) {
  42       [_savedBreakpoints addObjectsFromArray:savedBreakpoints];
  43       for (NSDictionary* d in savedBreakpoints) {
  44         [_breakpoints addObject:[[[Breakpoint alloc] initWithDictionary:d] autorelease]];
  45       }
  46     }
  47   }
  48   return self;
  49 }
  50
  51 - (void)dealloc {
  52   [_breakpoints release];
  53   [_savedBreakpoints release];
  54   [super dealloc];
  55 }
  56
  57 /**
  58  * Registers a breakpoint at a given line
  59  */
  60 - (void)addBreakpoint:(Breakpoint*)bp;
  61 {
  62   if (![_breakpoints containsObject:bp])
  63   {
  64     [self willChangeValueForKey:@"breakpoints"];
  65     [_breakpoints addObject:bp];
  66     [self didChangeValueForKey:@"breakpoints"];
  67
  68     [_connection addBreakpoint:bp];
  69
  70     [_savedBreakpoints addObject:[bp dictionary]];
  71     [[NSUserDefaults standardUserDefaults] setObject:_savedBreakpoints forKey:kPrefBreakpoints];
  72
  73     [self updateDisplaysForFile:[bp file]];
  74   }
  75 }
  76
  77 /**
  78  * Removes a breakpoint at a given line/file combination, or nil if nothing was removed
  79  */
  80 - (Breakpoint*)removeBreakpointAt:(NSUInteger)line inFile:(NSString*)file
  81 {
  82   for (Breakpoint* b in _breakpoints)
  83   {
  84     if ([b line] == line && [[b file] isEqualToString:file])
  85     {
  86       // Keep the breakpoint alive after it is removed from the breakpoints
  87       // array.
  88       [[b retain] autorelease];
  89
  90       [self willChangeValueForKey:@"breakpoints"];
  91       [_breakpoints removeObject:b];
  92       [self didChangeValueForKey:@"breakpoints"];
  93
  94       [_connection removeBreakpoint:b];
  95
  96       [_savedBreakpoints removeObject:[b dictionary]];
  97       [[NSUserDefaults standardUserDefaults] setObject:_savedBreakpoints forKey:kPrefBreakpoints];
  98
  99       [self updateDisplaysForFile:file];
 100       return b;
 101     }
 102   }
 103   return nil;
 104 }
 105
 106 /**
 107  * Returns all the breakpoints for a given file
 108  */
 109 - (NSSet<NSNumber*>*)breakpointsForFile:(NSString*)file
 110 {
 111   NSMutableSet<NSNumber*>* matches = [NSMutableSet set];
 112   for (Breakpoint* b in _breakpoints) {
 113     if ([b.file isEqualToString:file]) {
 114       [matches addObject:@(b.line)];
 115     }
 116   }
 117
 118   return matches;
 119 }
 120
 121 /**
 122  * Checks to see if a given file has a breakpoint on a given line
 123  */
 124 - (BOOL)hasBreakpointAt:(NSUInteger)line inFile:(NSString*)file
 125 {
 126   return [_breakpoints containsObject:[[[Breakpoint alloc] initWithLine:line inFile:file] autorelease]];
 127 }
 128
 129 #pragma mark Private
 130
 131 /**
 132  * This marks BSSourceView needsDisplay, rearranges the objects in the breakpoints controller,
 133  * and sets the markers for the BSLineNumberView
 134  */
 135 - (void)updateDisplaysForFile:(NSString*)file
 136 {
 137   AppDelegate* appDel = [NSApp delegate];
 138   [[[appDel breakpoint] arrayController] rearrangeObjects];
 139   [[[appDel debugger] sourceViewer] setNeedsDisplay:YES];
 140   [[[appDel debugger] sourceViewer] setMarkers:[self breakpointsForFile:file]];
 141 }
 142
 143 @end