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2b5ada11cb
In particular, this fixes the size calculation for nested enums,
specifically enums within Optionals. Without this, the
reflection library computes `v` below as requiring two bytes
instead of one.
```
enum E {
case a
case b
}
let v = Optional<E>
```
This also adds a number of test cases for enums alone and
wrapped in optionals, including:
* Zero-case enums are allocated zero size and have zero extra inhabitants
* Zero-case enums in optionals also get zero size
* One-case no-payload enums are allocated zero size and have zero extra inhabitants
* One-case no-payload enums in optionals get one byte allocated and have zero extra inhabitants
* 254-case enums have only two extra inhabitants, so putting them in thrice-nested optionals requires an extra byte
* Various cases where each nested optional gets an extra byte
Resolves rdar://31154770
126 lines
7.7 KiB
Swift
126 lines
7.7 KiB
Swift
// RUN: %empty-directory(%t)
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// RUN: %target-build-swift -g -lswiftSwiftReflectionTest %s -o %t/reflect_Enum_NoCase
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// RUN: %target-codesign %t/reflect_Enum_NoCase
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// RUN: %target-run %target-swift-reflection-test %t/reflect_Enum_NoCase | %FileCheck %s --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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enum NoCaseEnum {
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}
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class ClassWithNoCaseEnum {
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var e1: NoCaseEnum?
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var e2: NoCaseEnum??
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var e3: NoCaseEnum???
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var e4: NoCaseEnum????
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var e5: NoCaseEnum?????
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}
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reflect(object: ClassWithNoCaseEnum())
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// CHECK-64: Reflecting an object.
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// CHECK-64: Instance pointer in child address space: 0x{{[0-9a-fA-F]+}}
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// CHECK-64: Type reference:
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// CHECK-64: (class reflect_Enum_NoCase.ClassWithNoCaseEnum)
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// CHECK-64: Type info:
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// CHECK-64: (class_instance size=31 alignment=1 stride=31 num_extra_inhabitants=0 bitwise_takable=1
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// CHECK-64: (field name=e1 offset=16
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// CHECK-64: (single_payload_enum size=1 alignment=1 stride=1 num_extra_inhabitants=0 bitwise_takable=1
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// CHECK-64: (field name=some offset=0
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// CHECK-64: (no_payload_enum size=0 alignment=1 stride=1 num_extra_inhabitants=0 bitwise_takable=1))))
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// CHECK-64: (field name=e2 offset=17
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// CHECK-64: (single_payload_enum size=2 alignment=1 stride=2 num_extra_inhabitants=0 bitwise_takable=1
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// CHECK-64: (field name=some offset=0
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// CHECK-64: (single_payload_enum size=1 alignment=1 stride=1 num_extra_inhabitants=0 bitwise_takable=1
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// CHECK-64: (field name=some offset=0
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// CHECK-64: (no_payload_enum size=0 alignment=1 stride=1 num_extra_inhabitants=0 bitwise_takable=1))))))
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// CHECK-64: (field name=e3 offset=19
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// CHECK-64: (single_payload_enum size=3 alignment=1 stride=3 num_extra_inhabitants=0 bitwise_takable=1
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// CHECK-64: (field name=some offset=0
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// CHECK-64: (single_payload_enum size=2 alignment=1 stride=2 num_extra_inhabitants=0 bitwise_takable=1
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// CHECK-64: (field name=some offset=0
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// CHECK-64: (single_payload_enum size=1 alignment=1 stride=1 num_extra_inhabitants=0 bitwise_takable=1
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// CHECK-64: (field name=some offset=0
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// CHECK-64: (no_payload_enum size=0 alignment=1 stride=1 num_extra_inhabitants=0 bitwise_takable=1))))))))
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// CHECK-64: (field name=e4 offset=22
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// CHECK-64: (single_payload_enum size=4 alignment=1 stride=4 num_extra_inhabitants=0 bitwise_takable=1
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// CHECK-64: (field name=some offset=0
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// CHECK-64: (single_payload_enum size=3 alignment=1 stride=3 num_extra_inhabitants=0 bitwise_takable=1
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// CHECK-64: (field name=some offset=0
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// CHECK-64: (single_payload_enum size=2 alignment=1 stride=2 num_extra_inhabitants=0 bitwise_takable=1
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// CHECK-64: (field name=some offset=0
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// CHECK-64: (single_payload_enum size=1 alignment=1 stride=1 num_extra_inhabitants=0 bitwise_takable=1
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// CHECK-64: (field name=some offset=0
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// CHECK-64: (no_payload_enum size=0 alignment=1 stride=1 num_extra_inhabitants=0 bitwise_takable=1))))))))))
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// CHECK-64: (field name=e5 offset=26
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// CHECK-64: (single_payload_enum size=5 alignment=1 stride=5 num_extra_inhabitants=0 bitwise_takable=1
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// CHECK-64: (field name=some offset=0
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// CHECK-64: (single_payload_enum size=4 alignment=1 stride=4 num_extra_inhabitants=0 bitwise_takable=1
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// CHECK-64: (field name=some offset=0
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// CHECK-64: (single_payload_enum size=3 alignment=1 stride=3 num_extra_inhabitants=0 bitwise_takable=1
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// CHECK-64: (field name=some offset=0
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// CHECK-64: (single_payload_enum size=2 alignment=1 stride=2 num_extra_inhabitants=0 bitwise_takable=1
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// CHECK-64: (field name=some offset=0
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// CHECK-64: (single_payload_enum size=1 alignment=1 stride=1 num_extra_inhabitants=0 bitwise_takable=1
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// CHECK-64: (field name=some offset=0
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// CHECK-64: (no_payload_enum size=0 alignment=1 stride=1 num_extra_inhabitants=0 bitwise_takable=1)))))))))))))
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// CHECK-32: Reflecting an object.
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// CHECK-32: Instance pointer in child address space: 0x{{[0-9a-fA-F]+}}
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// CHECK-32: Type reference:
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// CHECK-32: (class reflect_Enum_NoCase.ClassWithNoCaseEnum)
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// CHECK-32: Type info:
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// CHECK-32: (class_instance size=23 alignment=1 stride=23 num_extra_inhabitants=0 bitwise_takable=1
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// CHECK-32: (field name=e1 offset=8
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// CHECK-32: (single_payload_enum size=1 alignment=1 stride=1 num_extra_inhabitants=0 bitwise_takable=1
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// CHECK-32: (field name=some offset=0
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// CHECK-32: (no_payload_enum size=0 alignment=1 stride=1 num_extra_inhabitants=0 bitwise_takable=1))))
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// CHECK-32: (field name=e2 offset=9
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// CHECK-32: (single_payload_enum size=2 alignment=1 stride=2 num_extra_inhabitants=0 bitwise_takable=1
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// CHECK-32: (field name=some offset=0
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// CHECK-32: (single_payload_enum size=1 alignment=1 stride=1 num_extra_inhabitants=0 bitwise_takable=1
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// CHECK-32: (field name=some offset=0
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// CHECK-32: (no_payload_enum size=0 alignment=1 stride=1 num_extra_inhabitants=0 bitwise_takable=1))))))
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// CHECK-32: (field name=e3 offset=11
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// CHECK-32: (single_payload_enum size=3 alignment=1 stride=3 num_extra_inhabitants=0 bitwise_takable=1
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// CHECK-32: (field name=some offset=0
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// CHECK-32: (single_payload_enum size=2 alignment=1 stride=2 num_extra_inhabitants=0 bitwise_takable=1
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// CHECK-32: (field name=some offset=0
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// CHECK-32: (single_payload_enum size=1 alignment=1 stride=1 num_extra_inhabitants=0 bitwise_takable=1
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// CHECK-32: (field name=some offset=0
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// CHECK-32: (no_payload_enum size=0 alignment=1 stride=1 num_extra_inhabitants=0 bitwise_takable=1))))))))
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// CHECK-32: (field name=e4 offset=14
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// CHECK-32: (single_payload_enum size=4 alignment=1 stride=4 num_extra_inhabitants=0 bitwise_takable=1
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// CHECK-32: (field name=some offset=0
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// CHECK-32: (single_payload_enum size=3 alignment=1 stride=3 num_extra_inhabitants=0 bitwise_takable=1
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// CHECK-32: (field name=some offset=0
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// CHECK-32: (single_payload_enum size=2 alignment=1 stride=2 num_extra_inhabitants=0 bitwise_takable=1
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// CHECK-32: (field name=some offset=0
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// CHECK-32: (single_payload_enum size=1 alignment=1 stride=1 num_extra_inhabitants=0 bitwise_takable=1
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// CHECK-32: (field name=some offset=0
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// CHECK-32: (no_payload_enum size=0 alignment=1 stride=1 num_extra_inhabitants=0 bitwise_takable=1))))))))))
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// CHECK-32: (field name=e5 offset=18
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// CHECK-32: (single_payload_enum size=5 alignment=1 stride=5 num_extra_inhabitants=0 bitwise_takable=1
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// CHECK-32: (field name=some offset=0
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// CHECK-32: (single_payload_enum size=4 alignment=1 stride=4 num_extra_inhabitants=0 bitwise_takable=1
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// CHECK-32: (field name=some offset=0
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// CHECK-32: (single_payload_enum size=3 alignment=1 stride=3 num_extra_inhabitants=0 bitwise_takable=1
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// CHECK-32: (field name=some offset=0
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// CHECK-32: (single_payload_enum size=2 alignment=1 stride=2 num_extra_inhabitants=0 bitwise_takable=1
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// CHECK-32: (field name=some offset=0
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// CHECK-32: (single_payload_enum size=1 alignment=1 stride=1 num_extra_inhabitants=0 bitwise_takable=1
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// CHECK-32: (field name=some offset=0
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// CHECK-32: (no_payload_enum size=0 alignment=1 stride=1 num_extra_inhabitants=0 bitwise_takable=1)))))))))))))
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doneReflecting()
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// CHECK-64: Done.
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// CHECK-32: Done.
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