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3663c36284
We would lay out all classes starting with a Swift-style two-word header, even classes that inherit NSObject and therefore don't have Swift refcounting. The ObjC runtime would slide our ivars down for us at realization time, but it's nice to avoid unnecessarily dirtying memory in the not-uncommon case of direct NSObject subclasses.
192 lines
7.9 KiB
Swift
192 lines
7.9 KiB
Swift
// RUN: %empty-directory(%t)
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// RUN: %target-build-swift -lswiftSwiftReflectionTest %s -o %t/inherits_NSObject
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// RUN: %target-run %target-swift-reflection-test %t/inherits_NSObject | %FileCheck %s --check-prefix=CHECK --check-prefix=CHECK-%target-ptrsize
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// REQUIRES: objc_interop
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// REQUIRES: executable_test
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import Foundation
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import simd
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import SwiftReflectionTest
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class BaseNSClass : NSObject {
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var w: Int = 0
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var x: Bool = false
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}
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let baseClass = BaseNSClass()
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reflect(object: baseClass)
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// CHECK-64: Reflecting an object.
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// CHECK-64: Type reference:
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// CHECK-64: (class inherits_NSObject.BaseNSClass)
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// CHECK-64: Type info:
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// CHECK-64-NEXT: (class_instance size=17 alignment=8 stride=24 num_extra_inhabitants=0
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// CHECK-64-NEXT: (field name=w offset=8
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// CHECK-64-NEXT: (struct size=8 alignment=8 stride=8 num_extra_inhabitants=0
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// CHECK-64-NEXT: (field name=_value offset=0
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// CHECK-64-NEXT: (builtin size=8 alignment=8 stride=8 num_extra_inhabitants=0))))
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// CHECK-64-NEXT: (field name=x offset=16
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// CHECK-64-NEXT: (struct size=1 alignment=1 stride=1 num_extra_inhabitants=254
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// CHECK-64-NEXT: (field name=_value offset=0
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// CHECK-64-NEXT: (builtin size=1 alignment=1 stride=1 num_extra_inhabitants=254)))))
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// CHECK-32: Reflecting an object.
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// CHECK-32: Type reference:
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// CHECK-32: (class inherits_NSObject.BaseNSClass)
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// CHECK-32: Type info:
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// CHECK-32-NEXT: (class_instance size=9 alignment=4 stride=12 num_extra_inhabitants=0
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// CHECK-32-NEXT: (field name=w offset=4
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// CHECK-32-NEXT: (struct size=4 alignment=4 stride=4 num_extra_inhabitants=0
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// CHECK-32-NEXT: (field name=_value offset=0
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// CHECK-32-NEXT: (builtin size=4 alignment=4 stride=4 num_extra_inhabitants=0))))
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// CHECK-32-NEXT: (field name=x offset=8
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// CHECK-32-NEXT: (struct size=1 alignment=1 stride=1 num_extra_inhabitants=254
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// CHECK-32-NEXT: (field name=_value offset=0
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// CHECK-32-NEXT: (builtin size=1 alignment=1 stride=1 num_extra_inhabitants=254)))))
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class DerivedNSClass : BaseNSClass {
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var y: Bool = false
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var z: Int = 0
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}
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let derivedClass = DerivedNSClass()
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reflect(object: derivedClass)
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// CHECK-64: Reflecting an object.
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// CHECK-64: Type reference:
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// CHECK-64: (class inherits_NSObject.DerivedNSClass)
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// CHECK-64: Type info:
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// CHECK-64-NEXT: (class_instance size=32 alignment=8 stride=32 num_extra_inhabitants=0
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// CHECK-64-NEXT: (field name=y offset=17
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// CHECK-64-NEXT: (struct size=1 alignment=1 stride=1 num_extra_inhabitants=254
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// CHECK-64-NEXT: (field name=_value offset=0
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// CHECK-64-NEXT: (builtin size=1 alignment=1 stride=1 num_extra_inhabitants=254))))
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// CHECK-64-NEXT: (field name=z offset=24
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// CHECK-64-NEXT: (struct size=8 alignment=8 stride=8 num_extra_inhabitants=0
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// CHECK-64-NEXT: (field name=_value offset=0
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// CHECK-64-NEXT: (builtin size=8 alignment=8 stride=8 num_extra_inhabitants=0)))))
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// CHECK-32: Reflecting an object.
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// CHECK-32: Type reference:
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// CHECK-32: (class inherits_NSObject.DerivedNSClass)
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// CHECK-32: Type info:
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// CHECK-32-NEXT: (class_instance size=16 alignment=4 stride=16 num_extra_inhabitants=0
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// CHECK-32-NEXT: (field name=y offset=9
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// CHECK-32-NEXT: (struct size=1 alignment=1 stride=1 num_extra_inhabitants=254
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// CHECK-32-NEXT: (field name=_value offset=0
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// CHECK-32-NEXT: (builtin size=1 alignment=1 stride=1 num_extra_inhabitants=254))))
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// CHECK-32-NEXT: (field name=z offset=12
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// CHECK-32-NEXT: (struct size=4 alignment=4 stride=4 num_extra_inhabitants=0
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// CHECK-32-NEXT: (field name=_value offset=0
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// CHECK-32-NEXT: (builtin size=4 alignment=4 stride=4 num_extra_inhabitants=0)))))
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// Note: dynamic layout starts at offset 8, not 16
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class GenericBaseNSClass<T> : NSObject {
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var w: T = 0 as! T
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}
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let genericBaseClass = GenericBaseNSClass<Int>()
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reflect(object: genericBaseClass)
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// CHECK-64: Reflecting an object.
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// CHECK-64: Type reference:
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// CHECK-64: (bound_generic_class inherits_NSObject.GenericBaseNSClass
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// CHECK-64: (struct Swift.Int))
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// CHECK-64: Type info:
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// CHECK-64-NEXT: (class_instance size=16 alignment=8 stride=16 num_extra_inhabitants=0
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// CHECK-64-NEXT: (field name=w offset=8
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// CHECK-64-NEXT: (struct size=8 alignment=8 stride=8 num_extra_inhabitants=0
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// CHECK-64-NEXT: (field name=_value offset=0
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// CHECK-64-NEXT: (builtin size=8 alignment=8 stride=8 num_extra_inhabitants=0)))))
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// CHECK-32: Reflecting an object.
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// CHECK-32: Type reference:
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// CHECK-32: (bound_generic_class inherits_NSObject.GenericBaseNSClass
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// CHECK-32: (struct Swift.Int))
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// CHECK-32: Type info:
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// CHECK-32-NEXT: (class_instance size=8 alignment=4 stride=8 num_extra_inhabitants=0
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// CHECK-32-NEXT: (field name=w offset=4
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// CHECK-32-NEXT: (struct size=4 alignment=4 stride=4 num_extra_inhabitants=0
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// CHECK-32-NEXT: (field name=_value offset=0
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// CHECK-32-NEXT: (builtin size=4 alignment=4 stride=4 num_extra_inhabitants=0)))))
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class AlignedNSClass : NSObject {
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var w: Int = 0
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var x: int4 = [1,2,3,4]
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}
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let alignedClass = AlignedNSClass()
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reflect(object: alignedClass)
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// CHECK-64: Reflecting an object.
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// CHECK-64: Type reference:
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// CHECK-64: (class inherits_NSObject.AlignedNSClass)
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// CHECK-64: Type info:
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// CHECK-64-NEXT: (class_instance size=32 alignment=16 stride=32 num_extra_inhabitants=0
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// CHECK-64-NEXT: (field name=w offset=8
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// CHECK-64-NEXT: (struct size=8 alignment=8 stride=8 num_extra_inhabitants=0
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// CHECK-64-NEXT: (field name=_value offset=0
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// CHECK-64-NEXT: (builtin size=8 alignment=8 stride=8 num_extra_inhabitants=0))))
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// CHECK-64-NEXT: (field name=x offset=16
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// CHECK-64-NEXT: (builtin size=16 alignment=16 stride=16 num_extra_inhabitants=0)))
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// CHECK-32: Reflecting an object.
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// CHECK-32: Type reference:
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// CHECK-32: (class inherits_NSObject.AlignedNSClass)
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// CHECK-32: Type info:
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// CHECK-32-NEXT: (class_instance size=32 alignment=16 stride=32 num_extra_inhabitants=0
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// CHECK-32-NEXT: (field name=w offset=4
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// CHECK-32-NEXT: (struct size=4 alignment=4 stride=4 num_extra_inhabitants=0
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// CHECK-32-NEXT: (field name=_value offset=0
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// CHECK-32-NEXT: (builtin size=4 alignment=4 stride=4 num_extra_inhabitants=0))))
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// CHECK-32-NEXT: (field name=x offset=16
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// CHECK-32-NEXT: (builtin size=16 alignment=16 stride=16 num_extra_inhabitants=0)))
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class GenericAlignedNSClass<T> : NSObject {
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var w: T = 0 as! T
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var x: int4 = [1,2,3,4]
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}
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let genericAlignedClass = GenericAlignedNSClass<Int>()
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reflect(object: genericAlignedClass)
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// CHECK-64: Reflecting an object.
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// CHECK-64: Type reference:
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// CHECK-64: (bound_generic_class inherits_NSObject.GenericAlignedNSClass
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// CHECK-64: (struct Swift.Int))
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// CHECK-64: Type info:
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// CHECK-64-NEXT: (class_instance size=48 alignment=16 stride=48 num_extra_inhabitants=0
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// CHECK-64-NEXT: (field name=w offset=16
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// CHECK-64-NEXT: (struct size=8 alignment=8 stride=8 num_extra_inhabitants=0
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// CHECK-64-NEXT: (field name=_value offset=0
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// CHECK-64-NEXT: (builtin size=8 alignment=8 stride=8 num_extra_inhabitants=0))))
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// CHECK-64-NEXT: (field name=x offset=32
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// CHECK-64-NEXT: (builtin size=16 alignment=16 stride=16 num_extra_inhabitants=0)))
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// CHECK-32: Reflecting an object.
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// CHECK-32: Type reference:
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// CHECK-32: (bound_generic_class inherits_NSObject.GenericAlignedNSClass
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// CHECK-32: (struct Swift.Int))
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// CHECK-32: Type info:
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// CHECK-32-NEXT: (class_instance size=48 alignment=16 stride=48 num_extra_inhabitants=0
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// CHECK-32-NEXT: (field name=w offset=16
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// CHECK-32-NEXT: (struct size=4 alignment=4 stride=4 num_extra_inhabitants=0
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// CHECK-32-NEXT: (field name=_value offset=0
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// CHECK-32-NEXT: (builtin size=4 alignment=4 stride=4 num_extra_inhabitants=0))))
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// CHECK-32-NEXT: (field name=x offset=32
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// CHECK-32-NEXT: (builtin size=16 alignment=16 stride=16 num_extra_inhabitants=0)))
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doneReflecting()
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