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05a7ecbd34253a978ab1259ebeb42d528b569538
carbon-lang/toolchain/check/testdata/class/init_as.carbon
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Christopher Di Bella 05a7ecbd34 Move SubobjectDestroy and SelfDestruct out of interface Destroy (#7942) 
Determining that a type has trivial destruction requires checking
whether all of its subobjects have trivial destruction and whether its
type has a custom witness for `Destroy.Op`. This isn't possible when
`Destroy` is the custodian for `Destroy.Op` and `SubobjectDestroy.Op`,
so we need to make `SubobjectDestroy` its own interface.

`Destroy.SelfDestruct` becomes a standalone function because it depends
on `SubobjectDestroy` and `Destroy` being implemented, and is also
responsible for generating any custom witnesses for both interfaces.
Making `SelfDestruct` an interface was experimented with, but this
required a blanket impl that caused issues for facet types.

`Destroy` depends on `SubobjectDestroy` to be implemented. We'd ideally
use `require impls SubobjectDestroy`, but it isn't complete yet, and it
also causes problems when `Destroy` is implemented inside the class
definition. We work around this by temporarily renaming the `Destroy`
interface to `DestroyImpl`, and introducing a constraint called
`Destroy` so that user code doesn't need to write `Core.SubobjectDestroy
& Core.Destroy`.
2026-10-26 21:35:01 +00:00

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// Part of the Carbon Language project, under the Apache License v2.0 with LLVM
// Exceptions. See /LICENSE for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
// INCLUDE-FILE: toolchain/testing/testdata/min_prelude/int.carbon
//
// AUTOUPDATE
// TIP: To test this file alone, run:
// TIP: bazel test //toolchain/testing:file_test --test_arg=--file_tests=toolchain/check/testdata/class/init_as.carbon
// TIP: To dump output, run:
// TIP: bazel run //toolchain/testing:file_test -- --dump_output --file_tests=toolchain/check/testdata/class/init_as.carbon
class Class {
var a: i32;
var b: i32;
}
fn F() -> i32 {
//@dump-sem-ir-begin
return ({.a = 1, .b = 2} as Class).a;
//@dump-sem-ir-end
}
fn G() -> i32 {
//@dump-sem-ir-begin
var v: Class = {.a = 1, .b = 2} as Class;
//@dump-sem-ir-end
return v.a;
}
// CHECK:STDOUT: --- init_as.carbon
// CHECK:STDOUT:
// CHECK:STDOUT: constants {
// CHECK:STDOUT: type: type = facet_type <type> [concrete]
// CHECK:STDOUT: %Class: type = class_type @Class [concrete]
// CHECK:STDOUT: %int_32: Core.IntLiteral = int_value 32 [concrete]
// CHECK:STDOUT: %empty_tuple.type: type = tuple_type () [concrete]
// CHECK:STDOUT: %N: Core.IntLiteral = symbolic_binding N, 0 [symbolic]
// CHECK:STDOUT: %i32: type = class_type @Int, @Int(%int_32) [concrete]
// CHECK:STDOUT: %Class.elem: type = unbound_element_type %Class, %i32 [concrete]
// CHECK:STDOUT: %struct_type.a.b.250: type = struct_type {.a: %i32, .b: %i32} [concrete]
// CHECK:STDOUT: %int_1.5b8: Core.IntLiteral = int_value 1 [concrete]
// CHECK:STDOUT: %int_2.ecc: Core.IntLiteral = int_value 2 [concrete]
// CHECK:STDOUT: %struct_type.a.b.cfd: type = struct_type {.a: Core.IntLiteral, .b: Core.IntLiteral} [concrete]
// CHECK:STDOUT: %struct: %struct_type.a.b.cfd = struct_value (%int_1.5b8, %int_2.ecc) [concrete]
// CHECK:STDOUT: %ImplicitAs.type.6b0: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
// CHECK:STDOUT: %To: Core.IntLiteral = symbolic_binding To, 0 [symbolic]
// CHECK:STDOUT: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.3c6: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%To) [symbolic]
// CHECK:STDOUT: %Core.IntLiteral.as.ImplicitAs.impl.Convert.6f2: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.3c6 = struct_value () [symbolic]
// CHECK:STDOUT: %ImplicitAs.impl_witness.d73: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.f53, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
// CHECK:STDOUT: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.766: type = fn_type @Core.IntLiteral.as.ImplicitAs.impl.Convert, @Core.IntLiteral.as.ImplicitAs.impl(%int_32) [concrete]
// CHECK:STDOUT: %Core.IntLiteral.as.ImplicitAs.impl.Convert.f60: %Core.IntLiteral.as.ImplicitAs.impl.Convert.type.766 = struct_value () [concrete]
// CHECK:STDOUT: %ImplicitAs.facet: %ImplicitAs.type.6b0 = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.d73) [concrete]
// CHECK:STDOUT: %ImplicitAs.WithSelf.Convert.type.58f: type = fn_type @ImplicitAs.WithSelf.Convert, @ImplicitAs.WithSelf(%i32, %ImplicitAs.facet) [concrete]
// CHECK:STDOUT: %.33a: type = fn_type_with_self_type %ImplicitAs.WithSelf.Convert.type.58f, %ImplicitAs.facet [concrete]
// CHECK:STDOUT: %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.282: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.f60 [concrete]
// CHECK:STDOUT: %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn: <specific function> = specific_function %Core.IntLiteral.as.ImplicitAs.impl.Convert.f60, @Core.IntLiteral.as.ImplicitAs.impl.Convert(%int_32) [concrete]
// CHECK:STDOUT: %bound_method.3bd: <bound method> = bound_method %int_1.5b8, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
// CHECK:STDOUT: %int_1.68a: %i32 = int_value 1 [concrete]
// CHECK:STDOUT: %Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.8a6: <bound method> = bound_method %int_2.ecc, %Core.IntLiteral.as.ImplicitAs.impl.Convert.f60 [concrete]
// CHECK:STDOUT: %bound_method.a55: <bound method> = bound_method %int_2.ecc, %Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn [concrete]
// CHECK:STDOUT: %int_2.2e0: %i32 = int_value 2 [concrete]
// CHECK:STDOUT: %Class.val: %Class = struct_value (%int_1.68a, %int_2.2e0) [concrete]
// CHECK:STDOUT: %.d2d: ref %Class = temporary invalid, %Class.val [concrete]
// CHECK:STDOUT: %.a2c: ref %i32 = class_element_access %.d2d, element0 [concrete]
// CHECK:STDOUT: %Copy.type: type = facet_type <@Copy> [concrete]
// CHECK:STDOUT: %Int.as.Copy.impl.Op.type.a1d: type = fn_type @Int.as.Copy.impl.Op, @Int.as.Copy.impl(%N) [symbolic]
// CHECK:STDOUT: %Int.as.Copy.impl.Op.3c1: %Int.as.Copy.impl.Op.type.a1d = struct_value () [symbolic]
// CHECK:STDOUT: %Copy.impl_witness.8af: <witness> = impl_witness imports.%Copy.impl_witness_table.f44, @Int.as.Copy.impl(%int_32) [concrete]
// CHECK:STDOUT: %Int.as.Copy.impl.Op.type.648: type = fn_type @Int.as.Copy.impl.Op, @Int.as.Copy.impl(%int_32) [concrete]
// CHECK:STDOUT: %Int.as.Copy.impl.Op.cae: %Int.as.Copy.impl.Op.type.648 = struct_value () [concrete]
// CHECK:STDOUT: %Copy.facet: %Copy.type = facet_value %i32, (%Copy.impl_witness.8af) [concrete]
// CHECK:STDOUT: %Copy.WithSelf.Op.type.f76: type = fn_type @Copy.WithSelf.Op, @Copy.WithSelf(%Copy.facet) [concrete]
// CHECK:STDOUT: %.2b9: type = fn_type_with_self_type %Copy.WithSelf.Op.type.f76, %Copy.facet [concrete]
// CHECK:STDOUT: %Int.as.Copy.impl.Op.specific_fn: <specific function> = specific_function %Int.as.Copy.impl.Op.cae, @Int.as.Copy.impl.Op(%int_32) [concrete]
// CHECK:STDOUT: %Destroy.type: type = facet_type <@Destroy> [concrete]
// CHECK:STDOUT: %SubobjectDestroy.type: type = facet_type <@SubobjectDestroy> [concrete]
// CHECK:STDOUT: %T.09f: %SubobjectDestroy.type = symbolic_binding T, 0 [symbolic]
// CHECK:STDOUT: %T.as_type.as.DestroyImpl.impl.Op.type.dea: type = fn_type @T.as_type.as.DestroyImpl.impl.Op, @T.as_type.as.DestroyImpl.impl(%T.09f) [symbolic]
// CHECK:STDOUT: %T.as_type.as.DestroyImpl.impl.Op.6e5: %T.as_type.as.DestroyImpl.impl.Op.type.dea = struct_value () [symbolic]
// CHECK:STDOUT: %SubobjectDestroy.WithSelf.Op.type.6870fd.1: type = fn_type @SubobjectDestroy.WithSelf.Op.loc20_28.1 [concrete]
// CHECK:STDOUT: %SubobjectDestroy.WithSelf.Op.30f1ee.1: %SubobjectDestroy.WithSelf.Op.type.6870fd.1 = struct_value () [concrete]
// CHECK:STDOUT: %custom_witness.b80ef6.1: <witness> = custom_witness (%SubobjectDestroy.WithSelf.Op.30f1ee.1), @SubobjectDestroy [concrete]
// CHECK:STDOUT: %SubobjectDestroy.facet.49a: %SubobjectDestroy.type = facet_value %i32, (%custom_witness.b80ef6.1) [concrete]
// CHECK:STDOUT: %DestroyImpl.impl_witness.077: <witness> = impl_witness imports.%DestroyImpl.impl_witness_table, @T.as_type.as.DestroyImpl.impl(%SubobjectDestroy.facet.49a) [concrete]
// CHECK:STDOUT: %Destroy.facet.c2b: %Destroy.type = facet_value %i32, (%DestroyImpl.impl_witness.077, %custom_witness.b80ef6.1) [concrete]
// CHECK:STDOUT: %pattern_type.f15: type = pattern_type %Class [concrete]
// CHECK:STDOUT: %SubobjectDestroy.WithSelf.Op.type.6870fd.3: type = fn_type @SubobjectDestroy.WithSelf.Op.loc20_28.3 [concrete]
// CHECK:STDOUT: %SubobjectDestroy.WithSelf.Op.30f1ee.3: %SubobjectDestroy.WithSelf.Op.type.6870fd.3 = struct_value () [concrete]
// CHECK:STDOUT: %custom_witness.b80ef6.3: <witness> = custom_witness (%SubobjectDestroy.WithSelf.Op.30f1ee.3), @SubobjectDestroy [concrete]
// CHECK:STDOUT: %SubobjectDestroy.facet.3a1: %SubobjectDestroy.type = facet_value %Class, (%custom_witness.b80ef6.3) [concrete]
// CHECK:STDOUT: %DestroyImpl.impl_witness.66c: <witness> = impl_witness imports.%DestroyImpl.impl_witness_table, @T.as_type.as.DestroyImpl.impl(%SubobjectDestroy.facet.3a1) [concrete]
// CHECK:STDOUT: %Destroy.facet.728: %Destroy.type = facet_value %Class, (%DestroyImpl.impl_witness.66c, %custom_witness.b80ef6.3) [concrete]
// CHECK:STDOUT: %v.patt: %pattern_type.f15 = ref_binding_pattern v [concrete]
// CHECK:STDOUT: %v.var_patt: %pattern_type.f15 = var_pattern %v.patt [concrete]
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: imports {
// CHECK:STDOUT: %Core.import_ref.e47: @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert.type (%Core.IntLiteral.as.ImplicitAs.impl.Convert.type.3c6) = import_ref Core//prelude/parts/int, loc{{\d+_\d+}}, loaded [symbolic = @Core.IntLiteral.as.ImplicitAs.impl.%Core.IntLiteral.as.ImplicitAs.impl.Convert (constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.6f2)]
// CHECK:STDOUT: %ImplicitAs.impl_witness_table.f53 = impl_witness_table (%Core.import_ref.e47), @Core.IntLiteral.as.ImplicitAs.impl [concrete]
// CHECK:STDOUT: %Core.import_ref.72f: @Int.as.Copy.impl.%Int.as.Copy.impl.Op.type (%Int.as.Copy.impl.Op.type.a1d) = import_ref Core//prelude/parts/int, loc{{\d+_\d+}}, loaded [symbolic = @Int.as.Copy.impl.%Int.as.Copy.impl.Op (constants.%Int.as.Copy.impl.Op.3c1)]
// CHECK:STDOUT: %Copy.impl_witness_table.f44 = impl_witness_table (%Core.import_ref.72f), @Int.as.Copy.impl [concrete]
// CHECK:STDOUT: %Core.import_ref.74d: @T.as_type.as.DestroyImpl.impl.%T.as_type.as.DestroyImpl.impl.Op.type (%T.as_type.as.DestroyImpl.impl.Op.type.dea) = import_ref Core//prelude/parts/destroy, loc{{\d+_\d+}}, loaded [symbolic = @T.as_type.as.DestroyImpl.impl.%T.as_type.as.DestroyImpl.impl.Op (constants.%T.as_type.as.DestroyImpl.impl.Op.6e5)]
// CHECK:STDOUT: %DestroyImpl.impl_witness_table = impl_witness_table (%Core.import_ref.74d), @T.as_type.as.DestroyImpl.impl [concrete]
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: fn @F() -> out %return.param: %i32 {
// CHECK:STDOUT: !entry:
// CHECK:STDOUT: %int_1: Core.IntLiteral = int_value 1 [concrete = constants.%int_1.5b8]
// CHECK:STDOUT: %int_2: Core.IntLiteral = int_value 2 [concrete = constants.%int_2.ecc]
// CHECK:STDOUT: %.loc20_26.1: %struct_type.a.b.cfd = struct_literal (%int_1, %int_2) [concrete = constants.%struct]
// CHECK:STDOUT: %Class.ref: type = name_ref Class, file.%Class.decl [concrete = constants.%Class]
// CHECK:STDOUT: %impl.elem0.loc20_26.1: %.33a = impl_witness_access constants.%ImplicitAs.impl_witness.d73, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f60]
// CHECK:STDOUT: %bound_method.loc20_26.1: <bound method> = bound_method %int_1, %impl.elem0.loc20_26.1 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.282]
// CHECK:STDOUT: %specific_fn.loc20_26.1: <specific function> = specific_function %impl.elem0.loc20_26.1, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
// CHECK:STDOUT: %bound_method.loc20_26.2: <bound method> = bound_method %int_1, %specific_fn.loc20_26.1 [concrete = constants.%bound_method.3bd]
// CHECK:STDOUT: %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc20_26.1: init %i32 = call %bound_method.loc20_26.2(%int_1) [concrete = constants.%int_1.68a]
// CHECK:STDOUT: %.loc20_26.2: init %i32 = converted %int_1, %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc20_26.1 [concrete = constants.%int_1.68a]
// CHECK:STDOUT: %.loc20_26.3: ref %Class = temporary_storage
// CHECK:STDOUT: %.loc20_26.4: ref %i32 = class_element_access %.loc20_26.3, element0
// CHECK:STDOUT: %.loc20_26.5: init %i32 to %.loc20_26.4 = in_place_init %.loc20_26.2 [concrete = constants.%int_1.68a]
// CHECK:STDOUT: %impl.elem0.loc20_26.2: %.33a = impl_witness_access constants.%ImplicitAs.impl_witness.d73, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f60]
// CHECK:STDOUT: %bound_method.loc20_26.3: <bound method> = bound_method %int_2, %impl.elem0.loc20_26.2 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.8a6]
// CHECK:STDOUT: %specific_fn.loc20_26.2: <specific function> = specific_function %impl.elem0.loc20_26.2, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
// CHECK:STDOUT: %bound_method.loc20_26.4: <bound method> = bound_method %int_2, %specific_fn.loc20_26.2 [concrete = constants.%bound_method.a55]
// CHECK:STDOUT: %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc20_26.2: init %i32 = call %bound_method.loc20_26.4(%int_2) [concrete = constants.%int_2.2e0]
// CHECK:STDOUT: %.loc20_26.6: init %i32 = converted %int_2, %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc20_26.2 [concrete = constants.%int_2.2e0]
// CHECK:STDOUT: %.loc20_26.7: ref %i32 = class_element_access %.loc20_26.3, element1
// CHECK:STDOUT: %.loc20_26.8: init %i32 to %.loc20_26.7 = in_place_init %.loc20_26.6 [concrete = constants.%int_2.2e0]
// CHECK:STDOUT: %.loc20_26.9: init %Class to %.loc20_26.3 = class_init (%.loc20_26.5, %.loc20_26.8) [concrete = constants.%Class.val]
// CHECK:STDOUT: %.loc20_28.1: init %Class = converted %.loc20_26.1, %.loc20_26.9 [concrete = constants.%Class.val]
// CHECK:STDOUT: %.loc20_28.2: ref %Class = temporary %.loc20_26.3, %.loc20_28.1 [concrete = constants.%.d2d]
// CHECK:STDOUT: %a.ref: %Class.elem = name_ref a, @Class.%field_decl.loc14 [concrete = @Class.%field_decl.loc14]
// CHECK:STDOUT: %.loc20_37.1: ref %i32 = class_element_access %.loc20_28.2, element0 [concrete = constants.%.a2c]
// CHECK:STDOUT: %.loc20_37.2: %i32 = acquire_value %.loc20_37.1
// CHECK:STDOUT: %impl.elem0.loc20_37: %.2b9 = impl_witness_access constants.%Copy.impl_witness.8af, element0 [concrete = constants.%Int.as.Copy.impl.Op.cae]
// CHECK:STDOUT: %bound_method.loc20_37.1: <bound method> = bound_method %.loc20_37.2, %impl.elem0.loc20_37
// CHECK:STDOUT: %specific_fn.loc20_37: <specific function> = specific_function %impl.elem0.loc20_37, @Int.as.Copy.impl.Op(constants.%int_32) [concrete = constants.%Int.as.Copy.impl.Op.specific_fn]
// CHECK:STDOUT: %bound_method.loc20_37.2: <bound method> = bound_method %.loc20_37.2, %specific_fn.loc20_37
// CHECK:STDOUT: %Int.as.Copy.impl.Op.call: init %i32 = call %bound_method.loc20_37.2(%.loc20_37.2)
// CHECK:STDOUT: %Destroy.facet.loc20_28.1: %Destroy.type = facet_value constants.%Class, (constants.%DestroyImpl.impl_witness.66c, constants.%custom_witness.b80ef6.3) [concrete = constants.%Destroy.facet.728]
// CHECK:STDOUT: %.loc20_28.3: %Destroy.type = converted constants.%Class, %Destroy.facet.loc20_28.1 [concrete = constants.%Destroy.facet.728]
// CHECK:STDOUT: %Destroy.facet.loc20_28.2: %Destroy.type = facet_value constants.%Class, (constants.%DestroyImpl.impl_witness.66c, constants.%custom_witness.b80ef6.3) [concrete = constants.%Destroy.facet.728]
// CHECK:STDOUT: %.loc20_28.4: %Destroy.type = converted constants.%Class, %Destroy.facet.loc20_28.2 [concrete = constants.%Destroy.facet.728]
// CHECK:STDOUT: <elided>
// CHECK:STDOUT: %SelfDestruct.call: init %empty_tuple.type = call %SelfDestruct.specific_fn(%.loc20_28.2)
// CHECK:STDOUT: return %Int.as.Copy.impl.Op.call
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: fn @SubobjectDestroy.WithSelf.Op.loc20_28.1(%self.param: ref %i32) = "no_op";
// CHECK:STDOUT:
// CHECK:STDOUT: fn @SubobjectDestroy.WithSelf.Op.loc20_28.2(%self.param: ref %struct_type.a.b.250) {
// CHECK:STDOUT: !entry:
// CHECK:STDOUT: %.loc20_28.1: ref %i32 = struct_access %self.param, element1
// CHECK:STDOUT: %Destroy.facet.loc20_28.1: %Destroy.type = facet_value constants.%i32, (constants.%DestroyImpl.impl_witness.077, constants.%custom_witness.b80ef6.1) [concrete = constants.%Destroy.facet.c2b]
// CHECK:STDOUT: %.loc20_28.2: %Destroy.type = converted constants.%i32, %Destroy.facet.loc20_28.1 [concrete = constants.%Destroy.facet.c2b]
// CHECK:STDOUT: %Destroy.facet.loc20_28.2: %Destroy.type = facet_value constants.%i32, (constants.%DestroyImpl.impl_witness.077, constants.%custom_witness.b80ef6.1) [concrete = constants.%Destroy.facet.c2b]
// CHECK:STDOUT: %.loc20_28.3: %Destroy.type = converted constants.%i32, %Destroy.facet.loc20_28.2 [concrete = constants.%Destroy.facet.c2b]
// CHECK:STDOUT: <elided>
// CHECK:STDOUT: %SelfDestruct.call.loc20_28.1: init %empty_tuple.type = call %SelfDestruct.specific_fn.1(%.loc20_28.1)
// CHECK:STDOUT: %.loc20_28.4: ref %i32 = struct_access %self.param, element0
// CHECK:STDOUT: %Destroy.facet.loc20_28.3: %Destroy.type = facet_value constants.%i32, (constants.%DestroyImpl.impl_witness.077, constants.%custom_witness.b80ef6.1) [concrete = constants.%Destroy.facet.c2b]
// CHECK:STDOUT: %.loc20_28.5: %Destroy.type = converted constants.%i32, %Destroy.facet.loc20_28.3 [concrete = constants.%Destroy.facet.c2b]
// CHECK:STDOUT: %Destroy.facet.loc20_28.4: %Destroy.type = facet_value constants.%i32, (constants.%DestroyImpl.impl_witness.077, constants.%custom_witness.b80ef6.1) [concrete = constants.%Destroy.facet.c2b]
// CHECK:STDOUT: %.loc20_28.6: %Destroy.type = converted constants.%i32, %Destroy.facet.loc20_28.4 [concrete = constants.%Destroy.facet.c2b]
// CHECK:STDOUT: <elided>
// CHECK:STDOUT: %SelfDestruct.call.loc20_28.2: init %empty_tuple.type = call %SelfDestruct.specific_fn.2(%.loc20_28.4)
// CHECK:STDOUT: return
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: fn @SubobjectDestroy.WithSelf.Op.loc20_28.3(%self.param: ref %Class) {
// CHECK:STDOUT: !entry:
// CHECK:STDOUT: %b.ref: %Class.elem = name_ref b, @Class.%field_decl.loc15 [concrete = @Class.%field_decl.loc15]
// CHECK:STDOUT: %.loc20_28.1: ref %i32 = class_element_access %self.param, element1
// CHECK:STDOUT: %Destroy.facet.loc20_28.1: %Destroy.type = facet_value constants.%i32, (constants.%DestroyImpl.impl_witness.077, constants.%custom_witness.b80ef6.1) [concrete = constants.%Destroy.facet.c2b]
// CHECK:STDOUT: %.loc20_28.2: %Destroy.type = converted constants.%i32, %Destroy.facet.loc20_28.1 [concrete = constants.%Destroy.facet.c2b]
// CHECK:STDOUT: %Destroy.facet.loc20_28.2: %Destroy.type = facet_value constants.%i32, (constants.%DestroyImpl.impl_witness.077, constants.%custom_witness.b80ef6.1) [concrete = constants.%Destroy.facet.c2b]
// CHECK:STDOUT: %.loc20_28.3: %Destroy.type = converted constants.%i32, %Destroy.facet.loc20_28.2 [concrete = constants.%Destroy.facet.c2b]
// CHECK:STDOUT: <elided>
// CHECK:STDOUT: %SelfDestruct.call.loc20_28.1: init %empty_tuple.type = call %SelfDestruct.specific_fn.1(%.loc20_28.1)
// CHECK:STDOUT: %a.ref: %Class.elem = name_ref a, @Class.%field_decl.loc14 [concrete = @Class.%field_decl.loc14]
// CHECK:STDOUT: %.loc20_28.4: ref %i32 = class_element_access %self.param, element0
// CHECK:STDOUT: %Destroy.facet.loc20_28.3: %Destroy.type = facet_value constants.%i32, (constants.%DestroyImpl.impl_witness.077, constants.%custom_witness.b80ef6.1) [concrete = constants.%Destroy.facet.c2b]
// CHECK:STDOUT: %.loc20_28.5: %Destroy.type = converted constants.%i32, %Destroy.facet.loc20_28.3 [concrete = constants.%Destroy.facet.c2b]
// CHECK:STDOUT: %Destroy.facet.loc20_28.4: %Destroy.type = facet_value constants.%i32, (constants.%DestroyImpl.impl_witness.077, constants.%custom_witness.b80ef6.1) [concrete = constants.%Destroy.facet.c2b]
// CHECK:STDOUT: %.loc20_28.6: %Destroy.type = converted constants.%i32, %Destroy.facet.loc20_28.4 [concrete = constants.%Destroy.facet.c2b]
// CHECK:STDOUT: <elided>
// CHECK:STDOUT: %SelfDestruct.call.loc20_28.2: init %empty_tuple.type = call %SelfDestruct.specific_fn.2(%.loc20_28.4)
// CHECK:STDOUT: return
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: fn @G() -> out %return.param: %i32 {
// CHECK:STDOUT: !entry:
// CHECK:STDOUT: %v.var: ref %Class = var_storage %v.var_patt
// CHECK:STDOUT: %int_1: Core.IntLiteral = int_value 1 [concrete = constants.%int_1.5b8]
// CHECK:STDOUT: %int_2: Core.IntLiteral = int_value 2 [concrete = constants.%int_2.ecc]
// CHECK:STDOUT: %.loc26_33.1: %struct_type.a.b.cfd = struct_literal (%int_1, %int_2) [concrete = constants.%struct]
// CHECK:STDOUT: %Class.ref.loc26_38: type = name_ref Class, file.%Class.decl [concrete = constants.%Class]
// CHECK:STDOUT: %impl.elem0.loc26_33.1: %.33a = impl_witness_access constants.%ImplicitAs.impl_witness.d73, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f60]
// CHECK:STDOUT: %bound_method.loc26_33.1: <bound method> = bound_method %int_1, %impl.elem0.loc26_33.1 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.282]
// CHECK:STDOUT: %specific_fn.loc26_33.1: <specific function> = specific_function %impl.elem0.loc26_33.1, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
// CHECK:STDOUT: %bound_method.loc26_33.2: <bound method> = bound_method %int_1, %specific_fn.loc26_33.1 [concrete = constants.%bound_method.3bd]
// CHECK:STDOUT: %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc26_33.1: init %i32 = call %bound_method.loc26_33.2(%int_1) [concrete = constants.%int_1.68a]
// CHECK:STDOUT: %.loc26_33.2: init %i32 = converted %int_1, %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc26_33.1 [concrete = constants.%int_1.68a]
// CHECK:STDOUT: %.loc26_3.1: ref %Class = splice_block %v.var {}
// CHECK:STDOUT: %.loc26_33.3: ref %i32 = class_element_access %.loc26_3.1, element0
// CHECK:STDOUT: %.loc26_33.4: init %i32 to %.loc26_33.3 = in_place_init %.loc26_33.2 [concrete = constants.%int_1.68a]
// CHECK:STDOUT: %impl.elem0.loc26_33.2: %.33a = impl_witness_access constants.%ImplicitAs.impl_witness.d73, element0 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.f60]
// CHECK:STDOUT: %bound_method.loc26_33.3: <bound method> = bound_method %int_2, %impl.elem0.loc26_33.2 [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.bound.8a6]
// CHECK:STDOUT: %specific_fn.loc26_33.2: <specific function> = specific_function %impl.elem0.loc26_33.2, @Core.IntLiteral.as.ImplicitAs.impl.Convert(constants.%int_32) [concrete = constants.%Core.IntLiteral.as.ImplicitAs.impl.Convert.specific_fn]
// CHECK:STDOUT: %bound_method.loc26_33.4: <bound method> = bound_method %int_2, %specific_fn.loc26_33.2 [concrete = constants.%bound_method.a55]
// CHECK:STDOUT: %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc26_33.2: init %i32 = call %bound_method.loc26_33.4(%int_2) [concrete = constants.%int_2.2e0]
// CHECK:STDOUT: %.loc26_33.5: init %i32 = converted %int_2, %Core.IntLiteral.as.ImplicitAs.impl.Convert.call.loc26_33.2 [concrete = constants.%int_2.2e0]
// CHECK:STDOUT: %.loc26_33.6: ref %i32 = class_element_access %.loc26_3.1, element1
// CHECK:STDOUT: %.loc26_33.7: init %i32 to %.loc26_33.6 = in_place_init %.loc26_33.5 [concrete = constants.%int_2.2e0]
// CHECK:STDOUT: %.loc26_33.8: init %Class to %.loc26_3.1 = class_init (%.loc26_33.4, %.loc26_33.7) [concrete = constants.%Class.val]
// CHECK:STDOUT: %.loc26_35: init %Class = converted %.loc26_33.1, %.loc26_33.8 [concrete = constants.%Class.val]
// CHECK:STDOUT: assign %v.var, %.loc26_35
// CHECK:STDOUT: %Class.ref.loc26_10: type = name_ref Class, file.%Class.decl [concrete = constants.%Class]
// CHECK:STDOUT: %v: ref %Class = wrapper_binding v, %v.var
// CHECK:STDOUT: name_binding_decl {
// CHECK:STDOUT: %v.patt: %pattern_type.f15 = ref_binding_pattern v [concrete = constants.%v.patt]
// CHECK:STDOUT: %v.var_patt: %pattern_type.f15 = var_pattern %v.patt [concrete = constants.%v.var_patt]
// CHECK:STDOUT: }
// CHECK:STDOUT: <elided>
// CHECK:STDOUT: %Destroy.facet.loc26_3.1: %Destroy.type = facet_value constants.%Class, (constants.%DestroyImpl.impl_witness.66c, constants.%custom_witness.b80ef6.3) [concrete = constants.%Destroy.facet.728]
// CHECK:STDOUT: %.loc26_3.2: %Destroy.type = converted constants.%Class, %Destroy.facet.loc26_3.1 [concrete = constants.%Destroy.facet.728]
// CHECK:STDOUT: %Destroy.facet.loc26_3.2: %Destroy.type = facet_value constants.%Class, (constants.%DestroyImpl.impl_witness.66c, constants.%custom_witness.b80ef6.3) [concrete = constants.%Destroy.facet.728]
// CHECK:STDOUT: %.loc26_3.3: %Destroy.type = converted constants.%Class, %Destroy.facet.loc26_3.2 [concrete = constants.%Destroy.facet.728]
// CHECK:STDOUT: <elided>
// CHECK:STDOUT: %SelfDestruct.call: init %empty_tuple.type = call %SelfDestruct.specific_fn(%v.var)
// CHECK:STDOUT: <elided>
// CHECK:STDOUT: }
// CHECK:STDOUT:
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