subclass_instance_start_adjustment.swift

// RUN: %empty-directory(%t)
// RUN: %target-build-swift %s -o %t/subclass_instance_start_adjustment
// RUN: %target-codesign %t/subclass_instance_start_adjustment
// RUN: %target-run %t/subclass_instance_start_adjustment | %FileCheck %s

// REQUIRES: executable_test
// UNSUPPORTED: use_os_stdlib
// UNSUPPORTED: back_deployment_runtime

// Make sure we get the InstanceStart adjustment right for concrete subclasses
// of generic classes with different sizes, and especially with an unaligned
// size.

classGenericSuperclassWithAlignedSize<T>{
varfield=42
}

classSubclassOfGenericSuperclassWithAlignedSize:GenericSuperclassWithAlignedSize<Int>{
varsubfield=43
}

do{
letobj=SubclassOfGenericSuperclassWithAlignedSize()
print(obj, obj.field, obj.subfield)
 // CHECK: SubclassOfGenericSuperclassWithAlignedSize 42 43
}

classGenericSuperclassWithMisalignedSize<T>{
varfield=true
}

classSubclassOfGenericSuperclassWithMisalignedSize:GenericSuperclassWithMisalignedSize<Int>{
varsubfield=44
}

do{
letobj=SubclassOfGenericSuperclassWithMisalignedSize()
print(obj, obj.field, obj.subfield)
 // CHECK: SubclassOfGenericSuperclassWithMisalignedSize true 44
}

#if canImport(Foundation)
import Foundation

classGenericSuperclassWithURLField<T>{
varfield:URL?
}

classSubclassOfGenericSuperclassWithURLField:GenericSuperclassWithURLField<Int>{
varsubfield=45
}

do{
letobj=SubclassOfGenericSuperclassWithURLField()
print(obj, obj.field asAny, obj.subfield)
 // CHECK: SubclassOfGenericSuperclassWithURLField nil 45
}
#else
// Simulate the expected output.
print("SubclassOfGenericSuperclassWithURLField nil 45")
#endif