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