| // Check that when Objective-C is first to touch a Swift class, it gives the |
| // Swift runtime a chance to update instance size and ivar offset metadata. |
| |
| // RUN: %empty-directory(%t) |
| // RUN: %target-build-swift -emit-library -emit-module -o %t/libResilient.dylib %S/Inputs/class-layout-from-objc/Resilient.swift -Xlinker -install_name -Xlinker @executable_path/libResilient.dylib -Xfrontend -enable-resilience -DSMALL |
| |
| // RUN: %target-clang -c %S/Inputs/class-layout-from-objc/OneWordSuperclass.m -fmodules -fobjc-arc -o %t/OneWordSuperclass.o |
| // RUN: %target-build-swift -emit-library -o %t/libClasses.dylib -emit-objc-header-path %t/Classes.h -I %t -I %S/Inputs/class-layout-from-objc/ %S/Inputs/class-layout-from-objc/Classes.swift %t/OneWordSuperclass.o -Xlinker -install_name -Xlinker @executable_path/libClasses.dylib -lResilient -L %t |
| // RUN: %target-clang %s -I %S/Inputs/class-layout-from-objc/ -I %t -fmodules -fobjc-arc -o %t/main -lResilient -lClasses -L %t |
| // RUN: %target-codesign %t/main %t/libResilient.dylib %t/libClasses.dylib |
| // RUN: %target-run %t/main OLD %t/libResilient.dylib %t/libClasses.dylib |
| |
| // RUN: %target-build-swift -emit-library -emit-module -o %t/libResilient.dylib %S/Inputs/class-layout-from-objc/Resilient.swift -Xlinker -install_name -Xlinker @executable_path/libResilient.dylib -Xfrontend -enable-resilience -DBIG |
| // RUN: %target-codesign %t/libResilient.dylib |
| // RUN: %target-run %t/main NEW %t/libResilient.dylib %t/libClasses.dylib |
| |
| // Try again when the class itself is also resilient. |
| // RUN: %target-build-swift -emit-library -o %t/libClasses.dylib -emit-objc-header-path %t/Classes.h -I %S/Inputs/class-layout-from-objc/ -I %t %S/Inputs/class-layout-from-objc/Classes.swift %t/OneWordSuperclass.o -Xlinker -install_name -Xlinker @executable_path/libClasses.dylib -lResilient -L %t |
| // RUN: %target-codesign %t/libClasses.dylib |
| // RUN: %target-run %t/main OLD %t/libResilient.dylib %t/libClasses.dylib |
| |
| // RUN: %target-build-swift -emit-library -emit-module -o %t/libResilient.dylib %S/Inputs/class-layout-from-objc/Resilient.swift -Xlinker -install_name -Xlinker @executable_path/libResilient.dylib -Xfrontend -enable-resilience -DSMALL |
| // RUN: %target-codesign %t/libResilient.dylib |
| // RUN: %target-run %t/main NEW %t/libResilient.dylib %t/libClasses.dylib |
| |
| // REQUIRES: executable_test |
| // REQUIRES: objc_interop |
| |
| #import <objc/runtime.h> |
| #import <assert.h> |
| #import <dlfcn.h> |
| #import <stdbool.h> |
| #import <string.h> |
| |
| #import "Classes.h" |
| |
| void checkClass(Class c) { |
| assert(c); |
| |
| size_t expectedSize = [c totalSize]; |
| size_t actualSize = class_getInstanceSize([c class]); |
| NSLog(@"%@: expected size %zd, actual size %zd", c, expectedSize, actualSize); |
| assert(expectedSize == actualSize); |
| |
| size_t expectedOffsetOfFirst = [c offsetOfFirst]; |
| size_t offsetOfFirst = ivar_getOffset(class_getInstanceVariable(c, "first")); |
| NSLog(@"expected offset of 'first' %zd, actual %zd", |
| expectedOffsetOfFirst, offsetOfFirst); |
| assert(offsetOfFirst == expectedOffsetOfFirst); |
| |
| size_t offsetOfLast = ivar_getOffset(class_getInstanceVariable(c, "last")); |
| NSLog(@"offset of 'last' %zd", offsetOfLast); |
| assert(offsetOfLast == actualSize - sizeof(intptr_t)); |
| } |
| |
| int main(int argc, const char * const argv[]) { |
| assert(argc > 1); |
| |
| if (!strcmp(argv[1], "OLD")) { |
| ; |
| } else if (!strcmp(argv[1], "NEW")) { |
| // Only test the new behavior on a new enough libobjc. |
| if (!dlsym(RTLD_NEXT, "_objc_realizeClassFromSwift")) { |
| fprintf(stderr, "skipping evolution tests; OS too old\n"); |
| return EXIT_SUCCESS; |
| } |
| } else { |
| fprintf(stderr, "usage: %s (OLD|NEW)\n", argv[0]); |
| return EXIT_FAILURE; |
| } |
| |
| @autoreleasepool { |
| NSLog(@"%zd", class_getInstanceSize([OneWordSuperclass class])); |
| checkClass([StaticClass class]); |
| checkClass(objc_getClass("Classes.DynamicClass")); |
| checkClass(objc_getClass("Classes.PureSwiftClass")); |
| } |
| } |