/*
TEST_CONFIG MEM=arc CC=clang
TEST_BUILD
$C{COMPILE_NOLINK_NOMEM} -c $DIR/MRRBase.m
$C{COMPILE_NOLINK_NOMEM} -c $DIR/MRRARR.m
$C{COMPILE_NOLINK} -c $DIR/ARRBase.m
$C{COMPILE_NOLINK} -c $DIR/ARRMRR.m
$C{COMPILE} -fobjc-arc $DIR/ARRLayouts.m -x none MRRBase.o MRRARR.o ARRBase.o ARRMRR.o -framework Foundation -o ARRLayouts.out
END
*/
#include "test.h"
#import <stdio.h>
#import <Foundation/Foundation.h>
#import <objc/runtime.h>
#import "ARRMRR.h"
#import "MRRARR.h"
@interface NSObject (Layouts)
+ (const char *)strongLayout;
+ (const char *)weakLayout;
@end
void printlayout(const char *name, const uint8_t *layout)
{
if (! getenv("VERBOSE")) return;
testprintf("
if (!layout) {
fprintf(stderr, "NULL\n");
return;
}
const uint8_t *c;
for (c = layout; *c; c++) {
fprintf(stderr, " }
fprintf(stderr, "00\n");
}
@implementation NSObject (Layouts)
+ (const char *)strongLayout {
const uint8_t *layout = class_getIvarLayout(self);
printlayout("strong", layout);
return (const char *)layout;
}
+ (const char *)weakLayout {
const uint8_t *weakLayout = class_getWeakIvarLayout(self);
printlayout("weak", weakLayout);
return (const char *)weakLayout;
}
+ (Ivar)instanceVariable:(const char *)name {
return class_getInstanceVariable(self, name);
}
@end
int main (int argc __unused, const char * argv[] __unused) {
// Under ARR, layout strings are relative to the class' own ivars.
testassert(strcmp([ARRBase strongLayout], "\x11\x20") == 0);
testassert(strcmp([ARRBase weakLayout], "\x31") == 0);
testassert([MRRBase strongLayout] == NULL);
testassert([MRRBase weakLayout] == NULL);
testassert(strcmp([ARRMRR strongLayout], "\x01") == 0);
testassert([ARRMRR weakLayout] == NULL);
testassert([MRRARR strongLayout] == NULL);
testassert([MRRARR weakLayout] == NULL);
// now check consistency between dynamic accessors and KVC, etc.
ARRMRR *am = [ARRMRR new];
MRRARR *ma = [MRRARR new];
NSString *am_description = [[NSString alloc] initWithFormat:@" NSString *ma_description = [[NSString alloc] initWithFormat:@"
am.number = M_PI;
object_setIvar(am, [ARRMRR instanceVariable:"object"], am_description);
testassert(CFGetRetainCount(objc_unretainedPointer(am_description)) == 1);
am.pointer = @selector(ARRMRR);
object_setIvar(am, [ARRMRR instanceVariable:"delegate"], ma);
testassert(CFGetRetainCount(objc_unretainedPointer(ma)) == 1);
ma.number = M_E;
object_setIvar(ma, [MRRARR instanceVariable:"object"], ma_description);
testassert(CFGetRetainCount(objc_unretainedPointer(ma_description)) == 2);
ma.pointer = @selector(MRRARR);
ma.delegate = am;
object_setIvar(ma, [MRRARR instanceVariable:"delegate"], am);
testassert(CFGetRetainCount(objc_unretainedPointer(am)) == 1);
succeed(__FILE__);
return 0;
}