mirror of
https://github.com/apple/swift.git
synced 2025-12-14 20:36:38 +01:00
0d361bd3ea
Teach RemoteMirror how to project enum values
This adds two new functions to the SwiftRemoteMirror
facility that support inspecting enum values.
Currently, these support non-payload enums and
single-payload enums, including nested enums and
payloads with struct, tuple, and reference payloads.
In particular, it handles nested `Optional` types.
TODO: Multi-payload enums use different strategies for
encoding the cases that aren't yet supported by this
code.
Note: This relies on information from dataLayoutQuery
to correctly decode invalid pointer values that are used
to encode enums. Existing clients will need to augment
their DLQ functions before using these new APIs.
Resolves rdar://59961527
```
/// Projects the value of an enum.
///
/// Takes the address and typeref for an enum and determines the
/// index of the currently-selected case within the enum.
///
/// Returns true iff the enum case could be successfully determined.
/// In particular, note that this code may fail for valid in-memory data
/// if the compiler is using a strategy we do not yet understand.
SWIFT_REMOTE_MIRROR_LINKAGE
int swift_reflection_projectEnumValue(SwiftReflectionContextRef ContextRef,
swift_addr_t EnumAddress,
swift_typeref_t EnumTypeRef,
uint64_t *CaseIndex);
/// Finds information about a particular enum case.
///
/// Given an enum typeref and index of a case, returns:
/// * Typeref of the associated payload or zero if there is no payload
/// * Name of the case if known.
///
/// The Name points to a freshly-allocated C string on the heap. You
/// are responsible for freeing the string (via `free()`) when you are finished.
SWIFT_REMOTE_MIRROR_LINKAGE
int swift_reflection_getEnumCaseTypeRef(SwiftReflectionContextRef ContextRef,
swift_typeref_t EnumTypeRef,
unsigned CaseIndex,
char **CaseName,
swift_typeref_t *PayloadTypeRef);
```
Co-authored-by: Mike Ash <mikeash@apple.com>
276 lines
19 KiB
Swift
276 lines
19 KiB
Swift
// RUN: %empty-directory(%t)
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// RUN: %target-build-swift -g -lswiftSwiftReflectionTest %s -o %t/reflect_Enum_TwoCaseTwoPayloads
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// RUN: %target-codesign %t/reflect_Enum_TwoCaseTwoPayloads
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// RUN: %target-run %target-swift-reflection-test %t/reflect_Enum_TwoCaseTwoPayloads | %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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struct Marker {
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let value = 1
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let extra = 2
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}
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enum TwoCaseTwoPayloadsEnum {
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case valid(Marker)
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case invalid(Int)
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}
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class ClassWithTwoCaseTwoPayloadsEnum {
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var e1: TwoCaseTwoPayloadsEnum?
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var e2: TwoCaseTwoPayloadsEnum = .valid(Marker())
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var e3: TwoCaseTwoPayloadsEnum = .invalid(7)
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var e4: TwoCaseTwoPayloadsEnum? = .valid(Marker())
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var e5: TwoCaseTwoPayloadsEnum? = .invalid(7)
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var e6: TwoCaseTwoPayloadsEnum??
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}
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reflect(object: ClassWithTwoCaseTwoPayloadsEnum())
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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_TwoCaseTwoPayloads.ClassWithTwoCaseTwoPayloadsEnum)
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// CHECK-64: Type info:
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// CHECK-64: (class_instance size=153 alignment=8 stride=160 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=17 alignment=8 stride=24 num_extra_inhabitants=253 bitwise_takable=1
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// CHECK-64: (case name=some index=0 offset=0
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// CHECK-64: (multi_payload_enum size=17 alignment=8 stride=24 num_extra_inhabitants=254 bitwise_takable=1
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// CHECK-64: (case name=valid index=0 offset=0
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// CHECK-64: (struct size=16 alignment=8 stride=16 num_extra_inhabitants=0 bitwise_takable=1
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// CHECK-64: (field name=value offset=0
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// CHECK-64: (struct size=8 alignment=8 stride=8 num_extra_inhabitants=0 bitwise_takable=1
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// CHECK-64: (field name=_value offset=0
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// CHECK-64: (builtin size=8 alignment=8 stride=8 num_extra_inhabitants=0 bitwise_takable=1))))
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// CHECK-64: (field name=extra offset=8
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// CHECK-64: (struct size=8 alignment=8 stride=8 num_extra_inhabitants=0 bitwise_takable=1
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// CHECK-64: (field name=_value offset=0
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// CHECK-64: (builtin size=8 alignment=8 stride=8 num_extra_inhabitants=0 bitwise_takable=1))))))
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// CHECK-64: (case name=invalid index=1 offset=0
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// CHECK-64: (struct size=8 alignment=8 stride=8 num_extra_inhabitants=0 bitwise_takable=1
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// CHECK-64: (field name=_value offset=0
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// CHECK-64: (builtin size=8 alignment=8 stride=8 num_extra_inhabitants=0 bitwise_takable=1))))))
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// CHECK-64: (case name=none index=1)))
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// CHECK-64: (field name=e2 offset=40
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// CHECK-64: (multi_payload_enum size=17 alignment=8 stride=24 num_extra_inhabitants=254 bitwise_takable=1
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// CHECK-64: (case name=valid index=0 offset=0
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// CHECK-64: (struct size=16 alignment=8 stride=16 num_extra_inhabitants=0 bitwise_takable=1
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// CHECK-64: (field name=value offset=0
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// CHECK-64: (struct size=8 alignment=8 stride=8 num_extra_inhabitants=0 bitwise_takable=1
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// CHECK-64: (field name=_value offset=0
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// CHECK-64: (builtin size=8 alignment=8 stride=8 num_extra_inhabitants=0 bitwise_takable=1))))
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// CHECK-64: (field name=extra offset=8
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// CHECK-64: (struct size=8 alignment=8 stride=8 num_extra_inhabitants=0 bitwise_takable=1
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// CHECK-64: (field name=_value offset=0
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// CHECK-64: (builtin size=8 alignment=8 stride=8 num_extra_inhabitants=0 bitwise_takable=1))))))
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// CHECK-64: (case name=invalid index=1 offset=0
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// CHECK-64: (struct size=8 alignment=8 stride=8 num_extra_inhabitants=0 bitwise_takable=1
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// CHECK-64: (field name=_value offset=0
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// CHECK-64: (builtin size=8 alignment=8 stride=8 num_extra_inhabitants=0 bitwise_takable=1))))))
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// CHECK-64: (field name=e3 offset=64
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// CHECK-64: (multi_payload_enum size=17 alignment=8 stride=24 num_extra_inhabitants=254 bitwise_takable=1
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// CHECK-64: (case name=valid index=0 offset=0
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// CHECK-64: (struct size=16 alignment=8 stride=16 num_extra_inhabitants=0 bitwise_takable=1
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// CHECK-64: (field name=value offset=0
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// CHECK-64: (struct size=8 alignment=8 stride=8 num_extra_inhabitants=0 bitwise_takable=1
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// CHECK-64: (field name=_value offset=0
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// CHECK-64: (builtin size=8 alignment=8 stride=8 num_extra_inhabitants=0 bitwise_takable=1))))
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// CHECK-64: (field name=extra offset=8
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// CHECK-64: (struct size=8 alignment=8 stride=8 num_extra_inhabitants=0 bitwise_takable=1
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// CHECK-64: (field name=_value offset=0
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// CHECK-64: (builtin size=8 alignment=8 stride=8 num_extra_inhabitants=0 bitwise_takable=1))))))
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// CHECK-64: (case name=invalid index=1 offset=0
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// CHECK-64: (struct size=8 alignment=8 stride=8 num_extra_inhabitants=0 bitwise_takable=1
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// CHECK-64: (field name=_value offset=0
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// CHECK-64: (builtin size=8 alignment=8 stride=8 num_extra_inhabitants=0 bitwise_takable=1))))))
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// CHECK-64: (field name=e4 offset=88
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// CHECK-64: (single_payload_enum size=17 alignment=8 stride=24 num_extra_inhabitants=253 bitwise_takable=1
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// CHECK-64: (case name=some index=0 offset=0
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// CHECK-64: (multi_payload_enum size=17 alignment=8 stride=24 num_extra_inhabitants=254 bitwise_takable=1
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// CHECK-64: (case name=valid index=0 offset=0
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// CHECK-64: (struct size=16 alignment=8 stride=16 num_extra_inhabitants=0 bitwise_takable=1
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// CHECK-64: (field name=value offset=0
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// CHECK-64: (struct size=8 alignment=8 stride=8 num_extra_inhabitants=0 bitwise_takable=1
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// CHECK-64: (field name=_value offset=0
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// CHECK-64: (builtin size=8 alignment=8 stride=8 num_extra_inhabitants=0 bitwise_takable=1))))
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// CHECK-64: (field name=extra offset=8
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// CHECK-64: (struct size=8 alignment=8 stride=8 num_extra_inhabitants=0 bitwise_takable=1
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// CHECK-64: (field name=_value offset=0
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// CHECK-64: (builtin size=8 alignment=8 stride=8 num_extra_inhabitants=0 bitwise_takable=1))))))
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// CHECK-64: (case name=invalid index=1 offset=0
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// CHECK-64: (struct size=8 alignment=8 stride=8 num_extra_inhabitants=0 bitwise_takable=1
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// CHECK-64: (field name=_value offset=0
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// CHECK-64: (builtin size=8 alignment=8 stride=8 num_extra_inhabitants=0 bitwise_takable=1))))))
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// CHECK-64: (case name=none index=1)))
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// CHECK-64: (field name=e5 offset=112
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// CHECK-64: (single_payload_enum size=17 alignment=8 stride=24 num_extra_inhabitants=253 bitwise_takable=1
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// CHECK-64: (case name=some index=0 offset=0
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// CHECK-64: (multi_payload_enum size=17 alignment=8 stride=24 num_extra_inhabitants=254 bitwise_takable=1
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// CHECK-64: (case name=valid index=0 offset=0
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// CHECK-64: (struct size=16 alignment=8 stride=16 num_extra_inhabitants=0 bitwise_takable=1
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// CHECK-64: (field name=value offset=0
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// CHECK-64: (struct size=8 alignment=8 stride=8 num_extra_inhabitants=0 bitwise_takable=1
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// CHECK-64: (field name=_value offset=0
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// CHECK-64: (builtin size=8 alignment=8 stride=8 num_extra_inhabitants=0 bitwise_takable=1))))
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// CHECK-64: (field name=extra offset=8
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// CHECK-64: (struct size=8 alignment=8 stride=8 num_extra_inhabitants=0 bitwise_takable=1
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// CHECK-64: (field name=_value offset=0
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// CHECK-64: (builtin size=8 alignment=8 stride=8 num_extra_inhabitants=0 bitwise_takable=1))))))
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// CHECK-64: (case name=invalid index=1 offset=0
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// CHECK-64: (struct size=8 alignment=8 stride=8 num_extra_inhabitants=0 bitwise_takable=1
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// CHECK-64: (field name=_value offset=0
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// CHECK-64: (builtin size=8 alignment=8 stride=8 num_extra_inhabitants=0 bitwise_takable=1))))))
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// CHECK-64: (case name=none index=1)))
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// CHECK-64: (field name=e6 offset=136
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// CHECK-64: (single_payload_enum size=17 alignment=8 stride=24 num_extra_inhabitants=252 bitwise_takable=1
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// CHECK-64: (case name=some index=0 offset=0
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// CHECK-64: (single_payload_enum size=17 alignment=8 stride=24 num_extra_inhabitants=253 bitwise_takable=1
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// CHECK-64: (case name=some index=0 offset=0
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// CHECK-64: (multi_payload_enum size=17 alignment=8 stride=24 num_extra_inhabitants=254 bitwise_takable=1
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// CHECK-64: (case name=valid index=0 offset=0
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// CHECK-64: (struct size=16 alignment=8 stride=16 num_extra_inhabitants=0 bitwise_takable=1
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// CHECK-64: (field name=value offset=0
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// CHECK-64: (struct size=8 alignment=8 stride=8 num_extra_inhabitants=0 bitwise_takable=1
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// CHECK-64: (field name=_value offset=0
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// CHECK-64: (builtin size=8 alignment=8 stride=8 num_extra_inhabitants=0 bitwise_takable=1))))
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// CHECK-64: (field name=extra offset=8
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// CHECK-64: (struct size=8 alignment=8 stride=8 num_extra_inhabitants=0 bitwise_takable=1
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// CHECK-64: (field name=_value offset=0
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// CHECK-64: (builtin size=8 alignment=8 stride=8 num_extra_inhabitants=0 bitwise_takable=1))))))
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// CHECK-64: (case name=invalid index=1 offset=0
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// CHECK-64: (struct size=8 alignment=8 stride=8 num_extra_inhabitants=0 bitwise_takable=1
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// CHECK-64: (field name=_value offset=0
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// CHECK-64: (builtin size=8 alignment=8 stride=8 num_extra_inhabitants=0 bitwise_takable=1))))))
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// CHECK-64: (case name=none index=1)))
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// CHECK-64: (case name=none index=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_TwoCaseTwoPayloads.ClassWithTwoCaseTwoPayloadsEnum)
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// CHECK-32: Type info:
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// CHECK-32: (class_instance size=77 alignment=4 stride=80 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=9 alignment=4 stride=12 num_extra_inhabitants=253 bitwise_takable=1
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// CHECK-32: (case name=some index=0 offset=0
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// CHECK-32: (multi_payload_enum size=9 alignment=4 stride=12 num_extra_inhabitants=254 bitwise_takable=1
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// CHECK-32: (case name=valid index=0 offset=0
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// CHECK-32: (struct size=8 alignment=4 stride=8 num_extra_inhabitants=0 bitwise_takable=1
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// CHECK-32: (field name=value offset=0
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// CHECK-32: (struct size=4 alignment=4 stride=4 num_extra_inhabitants=0 bitwise_takable=1
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// CHECK-32: (field name=_value offset=0
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// CHECK-32: (builtin size=4 alignment=4 stride=4 num_extra_inhabitants=0 bitwise_takable=1))))
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// CHECK-32: (field name=extra offset=4
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// CHECK-32: (struct size=4 alignment=4 stride=4 num_extra_inhabitants=0 bitwise_takable=1
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// CHECK-32: (field name=_value offset=0
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// CHECK-32: (builtin size=4 alignment=4 stride=4 num_extra_inhabitants=0 bitwise_takable=1))))))
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// CHECK-32: (case name=invalid index=1 offset=0
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// CHECK-32: (struct size=4 alignment=4 stride=4 num_extra_inhabitants=0 bitwise_takable=1
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// CHECK-32: (field name=_value offset=0
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// CHECK-32: (builtin size=4 alignment=4 stride=4 num_extra_inhabitants=0 bitwise_takable=1))))))
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// CHECK-32: (case name=none index=1)))
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// CHECK-32: (field name=e2 offset=20
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// CHECK-32: (multi_payload_enum size=9 alignment=4 stride=12 num_extra_inhabitants=254 bitwise_takable=1
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// CHECK-32: (case name=valid index=0 offset=0
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// CHECK-32: (struct size=8 alignment=4 stride=8 num_extra_inhabitants=0 bitwise_takable=1
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// CHECK-32: (field name=value offset=0
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// CHECK-32: (struct size=4 alignment=4 stride=4 num_extra_inhabitants=0 bitwise_takable=1
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// CHECK-32: (field name=_value offset=0
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// CHECK-32: (builtin size=4 alignment=4 stride=4 num_extra_inhabitants=0 bitwise_takable=1))))
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// CHECK-32: (field name=extra offset=4
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// CHECK-32: (struct size=4 alignment=4 stride=4 num_extra_inhabitants=0 bitwise_takable=1
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// CHECK-32: (field name=_value offset=0
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// CHECK-32: (builtin size=4 alignment=4 stride=4 num_extra_inhabitants=0 bitwise_takable=1))))))
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// CHECK-32: (case name=invalid index=1 offset=0
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// CHECK-32: (struct size=4 alignment=4 stride=4 num_extra_inhabitants=0 bitwise_takable=1
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// CHECK-32: (field name=_value offset=0
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// CHECK-32: (builtin size=4 alignment=4 stride=4 num_extra_inhabitants=0 bitwise_takable=1))))))
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// CHECK-32: (field name=e3 offset=32
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// CHECK-32: (multi_payload_enum size=9 alignment=4 stride=12 num_extra_inhabitants=254 bitwise_takable=1
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// CHECK-32: (case name=valid index=0 offset=0
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// CHECK-32: (struct size=8 alignment=4 stride=8 num_extra_inhabitants=0 bitwise_takable=1
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// CHECK-32: (field name=value offset=0
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// CHECK-32: (struct size=4 alignment=4 stride=4 num_extra_inhabitants=0 bitwise_takable=1
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// CHECK-32: (field name=_value offset=0
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// CHECK-32: (builtin size=4 alignment=4 stride=4 num_extra_inhabitants=0 bitwise_takable=1))))
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// CHECK-32: (field name=extra offset=4
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// CHECK-32: (struct size=4 alignment=4 stride=4 num_extra_inhabitants=0 bitwise_takable=1
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// CHECK-32: (field name=_value offset=0
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// CHECK-32: (builtin size=4 alignment=4 stride=4 num_extra_inhabitants=0 bitwise_takable=1))))))
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// CHECK-32: (case name=invalid index=1 offset=0
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// CHECK-32: (struct size=4 alignment=4 stride=4 num_extra_inhabitants=0 bitwise_takable=1
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// CHECK-32: (field name=_value offset=0
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// CHECK-32: (builtin size=4 alignment=4 stride=4 num_extra_inhabitants=0 bitwise_takable=1))))))
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// CHECK-32: (field name=e4 offset=44
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// CHECK-32: (single_payload_enum size=9 alignment=4 stride=12 num_extra_inhabitants=253 bitwise_takable=1
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// CHECK-32: (case name=some index=0 offset=0
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// CHECK-32: (multi_payload_enum size=9 alignment=4 stride=12 num_extra_inhabitants=254 bitwise_takable=1
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// CHECK-32: (case name=valid index=0 offset=0
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// CHECK-32: (struct size=8 alignment=4 stride=8 num_extra_inhabitants=0 bitwise_takable=1
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// CHECK-32: (field name=value offset=0
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// CHECK-32: (struct size=4 alignment=4 stride=4 num_extra_inhabitants=0 bitwise_takable=1
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// CHECK-32: (field name=_value offset=0
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// CHECK-32: (builtin size=4 alignment=4 stride=4 num_extra_inhabitants=0 bitwise_takable=1))))
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// CHECK-32: (field name=extra offset=4
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// CHECK-32: (struct size=4 alignment=4 stride=4 num_extra_inhabitants=0 bitwise_takable=1
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// CHECK-32: (field name=_value offset=0
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// CHECK-32: (builtin size=4 alignment=4 stride=4 num_extra_inhabitants=0 bitwise_takable=1))))))
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// CHECK-32: (case name=invalid index=1 offset=0
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// CHECK-32: (struct size=4 alignment=4 stride=4 num_extra_inhabitants=0 bitwise_takable=1
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// CHECK-32: (field name=_value offset=0
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// CHECK-32: (builtin size=4 alignment=4 stride=4 num_extra_inhabitants=0 bitwise_takable=1))))))
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// CHECK-32: (case name=none index=1)))
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// CHECK-32: (field name=e5 offset=56
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// CHECK-32: (single_payload_enum size=9 alignment=4 stride=12 num_extra_inhabitants=253 bitwise_takable=1
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// CHECK-32: (case name=some index=0 offset=0
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// CHECK-32: (multi_payload_enum size=9 alignment=4 stride=12 num_extra_inhabitants=254 bitwise_takable=1
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// CHECK-32: (case name=valid index=0 offset=0
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// CHECK-32: (struct size=8 alignment=4 stride=8 num_extra_inhabitants=0 bitwise_takable=1
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// CHECK-32: (field name=value offset=0
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// CHECK-32: (struct size=4 alignment=4 stride=4 num_extra_inhabitants=0 bitwise_takable=1
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// CHECK-32: (field name=_value offset=0
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// CHECK-32: (builtin size=4 alignment=4 stride=4 num_extra_inhabitants=0 bitwise_takable=1))))
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// CHECK-32: (field name=extra offset=4
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// CHECK-32: (struct size=4 alignment=4 stride=4 num_extra_inhabitants=0 bitwise_takable=1
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// CHECK-32: (field name=_value offset=0
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// CHECK-32: (builtin size=4 alignment=4 stride=4 num_extra_inhabitants=0 bitwise_takable=1))))))
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// CHECK-32: (case name=invalid index=1 offset=0
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// CHECK-32: (struct size=4 alignment=4 stride=4 num_extra_inhabitants=0 bitwise_takable=1
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// CHECK-32: (field name=_value offset=0
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// CHECK-32: (builtin size=4 alignment=4 stride=4 num_extra_inhabitants=0 bitwise_takable=1))))))
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// CHECK-32: (case name=none index=1)))
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// CHECK-32: (field name=e6 offset=68
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// CHECK-32: (single_payload_enum size=9 alignment=4 stride=12 num_extra_inhabitants=252 bitwise_takable=1
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// CHECK-32: (case name=some index=0 offset=0
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// CHECK-32: (single_payload_enum size=9 alignment=4 stride=12 num_extra_inhabitants=253 bitwise_takable=1
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// CHECK-32: (case name=some index=0 offset=0
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// CHECK-32: (multi_payload_enum size=9 alignment=4 stride=12 num_extra_inhabitants=254 bitwise_takable=1
|
|
// CHECK-32: (case name=valid index=0 offset=0
|
|
// CHECK-32: (struct size=8 alignment=4 stride=8 num_extra_inhabitants=0 bitwise_takable=1
|
|
// CHECK-32: (field name=value offset=0
|
|
// CHECK-32: (struct size=4 alignment=4 stride=4 num_extra_inhabitants=0 bitwise_takable=1
|
|
// CHECK-32: (field name=_value offset=0
|
|
// CHECK-32: (builtin size=4 alignment=4 stride=4 num_extra_inhabitants=0 bitwise_takable=1))))
|
|
// CHECK-32: (field name=extra offset=4
|
|
// CHECK-32: (struct size=4 alignment=4 stride=4 num_extra_inhabitants=0 bitwise_takable=1
|
|
// CHECK-32: (field name=_value offset=0
|
|
// CHECK-32: (builtin size=4 alignment=4 stride=4 num_extra_inhabitants=0 bitwise_takable=1))))))
|
|
// CHECK-32: (case name=invalid index=1 offset=0
|
|
// CHECK-32: (struct size=4 alignment=4 stride=4 num_extra_inhabitants=0 bitwise_takable=1
|
|
// CHECK-32: (field name=_value offset=0
|
|
// CHECK-32: (builtin size=4 alignment=4 stride=4 num_extra_inhabitants=0 bitwise_takable=1))))))
|
|
// CHECK-32: (case name=none index=1)))
|
|
// CHECK-32: (case name=none index=1))))
|
|
|
|
doneReflecting()
|
|
|
|
// CHECK-64: Done.
|
|
|
|
// CHECK-32: Done.
|