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Bitwise takability is now part of the layout of a type, because non-bitwise takable types are never stored inline in an existential or resilient global's buffer, even if they would fit. The basic rule is that weak references, unknown-refcounted unowned references, and aggregates that contain them, are not bitwise takable, whereas everything else is bitwise takable. Also, since the bitwise takable for an unowned reference depends on the reference counting style, we have to record the superclass of a protocol, if any, to correctly determine the reference counting style of the protocol existential.
54 lines
2.3 KiB
Swift
54 lines
2.3 KiB
Swift
// RUN: %empty-directory(%t)
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// RUN: %target-build-swift -lswiftSwiftReflectionTest %s -o %t/functions
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// RUN: %target-codesign %t/functions
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// RUN: %target-run %target-swift-reflection-test %t/functions | %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 SwiftReflectionTest
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import Foundation
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import CoreGraphics
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func capturesImportedTypes(x: Int, n: NSURL, r: CGRect, c: NSCoding) {
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reflect(function: {print(x); print(n); print(r); print(c)})
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// CHECK-32: Type reference:
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// CHECK-32-NEXT: (builtin Builtin.NativeObject)
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// CHECK-32: Type info:
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// CHECK-32-NEXT: (closure_context size=36 alignment=4 stride=36 num_extra_inhabitants=0 bitwise_takable=1
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// CHECK-32-NEXT: (field offset=8
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// CHECK-32-NEXT: (struct size=4 alignment=4 stride=4 num_extra_inhabitants=0 bitwise_takable=1
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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 bitwise_takable=1))))
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// CHECK-32-NEXT: (field offset=12
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// CHECK-32-NEXT: (reference kind=strong refcounting=unknown))
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// CHECK-32-NEXT: (field offset=16
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// CHECK-32-NEXT: (builtin size=16 alignment=4 stride=16 num_extra_inhabitants=0 bitwise_takable=1))
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// CHECK-32-NEXT: (field offset=32
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// CHECK-32-NEXT: (reference kind=strong refcounting=unknown)))
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// CHECK-64: Type reference:
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// CHECK-64-NEXT: (builtin Builtin.NativeObject)
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// CHECK-64: Type info:
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// CHECK-64-NEXT: (closure_context size=72 alignment=8 stride=72 num_extra_inhabitants=0 bitwise_takable=1
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// CHECK-64-NEXT: (field offset=16
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// CHECK-64-NEXT: (struct size=8 alignment=8 stride=8 num_extra_inhabitants=0 bitwise_takable=1
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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 bitwise_takable=1))))
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// CHECK-64-NEXT: (field offset=24
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// CHECK-64-NEXT: (reference kind=strong refcounting=unknown))
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// CHECK-64-NEXT: (field offset=32
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// CHECK-64-NEXT: (builtin size=32 alignment=8 stride=32 num_extra_inhabitants=0 bitwise_takable=1))
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// CHECK-64-NEXT: (field offset=64
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// CHECK-64-NEXT: (reference kind=strong refcounting=unknown)))
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}
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capturesImportedTypes(x: 10, n: NSURL(), r: CGRect(x: 1, y: 2, width: 3, height: 4), c: "" as NSString)
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doneReflecting()
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