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1//2// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.3// See https://llvm.org/LICENSE.txt for license information.4// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception5 6/*7 * objectassign.c8 * testObjects9 *10 * Created by Blaine Garst on 10/28/08.11 *12 * This just tests that the compiler is issuing the proper helper routines13 * CONFIG C rdar://617595914 */15 16 17#include <stdio.h>18#include <Block_private.h>19 20 21int AssignCalled = 0;22int DisposeCalled = 0;23 24// local copy instead of libSystem.B.dylib copy25void _Block_object_assign(void *destAddr, const void *object, const int isWeak) {26 //printf("_Block_object_assign(%p, %p, %d) called\n", destAddr, object, isWeak);27 AssignCalled = 1;28}29 30void _Block_object_dispose(const void *object, const int isWeak) {31 //printf("_Block_object_dispose(%p, %d) called\n", object, isWeak);32 DisposeCalled = 1;33}34 35struct MyStruct {36 long isa;37 long field;38};39 40typedef struct MyStruct *__attribute__((NSObject)) MyStruct_t;41 42int main(int argc, char *argv[]) {43 if (__APPLE_CC__ < 5627) {44 printf("need compiler version %d, have %d\n", 5627, __APPLE_CC__);45 return 0;46 }47 // create a block48 struct MyStruct X;49 MyStruct_t xp = (MyStruct_t)&X;50 xp->field = 10;51 void (^myBlock)(void) = ^{ printf("field is %ld\n", xp->field); };52 // should be a copy helper generated with a calls to above routines53 // Lets find out!54 struct Block_layout *bl = (struct Block_layout *)(void *)myBlock;55 if ((bl->flags & BLOCK_HAS_COPY_DISPOSE) != BLOCK_HAS_COPY_DISPOSE) {56 printf("no copy dispose!!!!\n");57 return 1;58 }59 // call helper routines directly. These will, in turn, we hope, call the stubs above60 long destBuffer[256];61 //printf("destbuffer is at %p, block at %p\n", destBuffer, (void *)bl);62 //printf("dump is %s\n", _Block_dump(myBlock));63 bl->descriptor->copy(destBuffer, bl);64 bl->descriptor->dispose(bl);65 if (AssignCalled == 0) {66 printf("did not call assign helper!\n");67 return 1;68 }69 if (DisposeCalled == 0) {70 printf("did not call dispose helper\n");71 return 1;72 }73 printf("%s: Success!\n", argv[0]);74 return 0;75}76