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      1 #import <Foundation/Foundation.h>
      2 #include <unistd.h>
      3 #import "my-base.h"
      4 
      5 @interface MyString : MyBase {
      6     NSString *str;
      7     NSDate *date;
      8     BOOL _desc_pauses;
      9 }
     10 
     11 @property(retain) NSString * str_property;
     12 @property BOOL descriptionPauses;
     13 
     14 - (id)initWithNSString:(NSString *)string;
     15 @end
     16 
     17 @implementation MyString
     18 @synthesize descriptionPauses = _desc_pauses;
     19 @synthesize str_property = str;
     20 
     21 - (id)initWithNSString:(NSString *)string
     22 {
     23     if (self = [super init])
     24     {
     25         str = [NSString stringWithString:string];
     26         date = [NSDate date];
     27     }
     28     self.descriptionPauses = NO;
     29     return self;
     30 }
     31 
     32 - (void)dealloc
     33 {
     34     [date release];
     35     [str release];
     36     [super dealloc];
     37 }
     38 
     39 - (NSString *)description
     40 {
     41     // Set a breakpoint on '-[MyString description]' and test expressions:
     42     // expression (char *)sel_getName(_cmd)
     43   if (self.descriptionPauses)  // Break here for description test
     44     {
     45         printf ("\nAbout to sleep.\n");
     46         usleep(100000);
     47     }
     48 
     49     return [str stringByAppendingFormat:@" with timestamp: %@", date];
     50 }
     51 @end
     52 
     53 int
     54 Test_Selector ()
     55 {
     56     SEL sel = @selector(length);
     57     printf("sel = %p\n", sel);
     58     // Expressions to test here for selector: 
     59     // expression (char *)sel_getName(sel)
     60     //      The expression above should return "sel" as it should be just
     61     //      a uniqued C string pointer. We were seeing the result pointer being
     62     //      truncated with recent LLDBs.
     63     return 0; // Break here for selector: tests
     64 }
     65 
     66 int
     67 Test_NSString (const char *program)
     68 {
     69     NSString *str = [NSString stringWithFormat:@"Hello from '%s'", program];
     70     NSLog(@"NSString instance: %@", str);
     71     printf("str = '%s'\n", [str cStringUsingEncoding: [NSString defaultCStringEncoding]]);
     72     printf("[str length] = %zu\n", (size_t)[str length]);
     73     printf("[str description] = %s\n", [[str description] UTF8String]);
     74     id str_id = str;
     75     // Expressions to test here for NSString:
     76     // expression (char *)sel_getName(sel)
     77     // expression [str length]
     78     // expression [str_id length]
     79     // expression [str description]
     80     // expression [str_id description]
     81     // expression str.length
     82     // expression str.description
     83     // expression str = @"new"
     84     // expression str = [NSString stringWithFormat: @"%cew", 'N']
     85     return 0; // Break here for NSString tests
     86 }
     87 
     88 NSString *my_global_str = NULL;
     89 
     90 void
     91 Test_MyString (const char *program)
     92 {
     93     my_global_str = [NSString stringWithString:@"This is a global string"];
     94     NSString *str = [NSString stringWithFormat:@"Hello from '%s'", program];
     95     MyString *my = [[MyString alloc] initWithNSString:str];
     96     NSLog(@"MyString instance: %@", [my description]);
     97     my.descriptionPauses = YES;     // Set break point at this line.  Test 'expression -o -- my'.
     98     NSLog(@"MyString instance: %@", [my description]);
     99 }
    100 
    101 int
    102 Test_NSArray ()
    103 {
    104     NSMutableArray *nil_mutable_array = nil;
    105     NSArray *array1 = [NSArray arrayWithObjects: @"array1 object1", @"array1 object2", @"array1 object3", nil];
    106     NSArray *array2 = [NSArray arrayWithObjects: array1, @"array2 object2", @"array2 object3", nil];
    107     // Expressions to test here for NSArray:
    108     // expression [nil_mutable_array count]
    109     // expression [array1 count]
    110     // expression array1.count
    111     // expression [array2 count]
    112     // expression array2.count
    113     id obj;
    114     // After each object at index call, use expression and validate object
    115     obj = [array1 objectAtIndex: 0]; // Break here for NSArray tests
    116     obj = [array1 objectAtIndex: 1];
    117     obj = [array1 objectAtIndex: 2];
    118 
    119     obj = [array2 objectAtIndex: 0];
    120     obj = [array2 objectAtIndex: 1];
    121     obj = [array2 objectAtIndex: 2];
    122     NSUInteger count = [nil_mutable_array count];
    123     return 0;
    124 }
    125 
    126 
    127 int main (int argc, char const *argv[])
    128 {
    129     NSAutoreleasePool * pool = [[NSAutoreleasePool alloc] init];
    130     Test_Selector();
    131     Test_NSArray ();
    132     Test_NSString (argv[0]);
    133     Test_MyString (argv[0]);
    134 
    135     printf("sizeof(id) = %zu\n", sizeof(id));
    136     printf("sizeof(Class) = %zu\n", sizeof(Class));
    137     printf("sizeof(SEL) = %zu\n", sizeof(SEL));
    138 
    139     [pool release];
    140     return 0;
    141 }
    142