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carbon-lang/toolchain/check/testdata/interface/generic_vs_params.carbon
T
Jon Ross-PerkinsandDana Jansens 5e3bb523f8 Add builtin functions for destroy, with special requirements in facet types (#6035) 
This is in support of a goal of changing the blanket `destroy` impl to
use (roughly):

```
private fn CanAggregateDestroy() -> type = "type.can_aggregate_destroy";

// Handles aggregate type destruction.
impl forall [AggregateDestroyT:! CanAggregateDestroy()] AggregateDestroyT as Destroy {
  fn Op[addr self: Self*]() = "type.aggregate_destroy";
}
```

That isn't done here because there's still other issues that migrating
raises. What this *does* do is add the builtin functions, and in
particular, support to `FacetTypeInfo` to make `CanAggregateDestroy`
work.

The "special requirement" approach in `FacetTypeInfo` allows us to
support restricting a blanket impl under the current approach of impls.
Maybe we'll find a cleaner approach that can work in the future, but
this fits into the current model by propagating similar to other
requirements. I'm using an enum mask because we have a number of similar
things to add (e.g. copy, move) but I'm not sure we need a full vector.

A few alternatives considered were:

- Supporting syntax more like `where .Self impls
TypeCanAggregateDestroy(.Self, SupportedInterface,
UnsupportedInterface)`. I think it'd be a little cleaner, but requires
better compile-time evaluation in order to assess the type of the call.
Right now it's expected to be a `FacetType` too early to make this work,
and I was concerned about pouring too much more time down this route.
- Providing an actual interface, in particular doing name lookup back
into `Core.` for an interface. This would've added name lookup overhead,
and the question of whether an `impl` exists.
- Generating an interface. This avoids the name lookup, but would still
raise the question of whether an `impl` should also be generated. Work
I've previously done generating interfaces for class destruction also
feels complex to both write and understand (an unfortunate issue).
- Still modeling as an `ImplsConstraint`, for example by defining a
special `InterfaceId::CanAggregateDestroy = -2` similar to what we do on
other ids. I was hesitant because of how this expands the number of
modes of `InterfaceId`, and things for consuming code to watch out for,
for what feels like a relatively niche set of use-cases that are only
interface-like.

---------

Co-authored-by: Dana Jansens <danakj@orodu.net>
2025-09-15 17:03:43 +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/none.carbon
// TODO: Add ranges and switch to "--dump-sem-ir-ranges=only".
// EXTRA-ARGS: --dump-sem-ir-ranges=if-present
//
// AUTOUPDATE
// TIP: To test this file alone, run:
// TIP: bazel test //toolchain/testing:file_test --test_arg=--file_tests=toolchain/check/testdata/interface/generic_vs_params.carbon
// TIP: To dump output, run:
// TIP: bazel run //toolchain/testing:file_test -- --dump_output --file_tests=toolchain/check/testdata/interface/generic_vs_params.carbon
// --- params.carbon
library "[[@TEST_NAME]]";
interface NotGenericNoParams {}
interface NotGenericButParams() {}
interface GenericAndParams(T:! type) {}
class C(T:! type) {
interface GenericNoParams {}
interface GenericAndParams(U:! type) {}
}
class X {}
impl X as NotGenericNoParams {}
impl X as NotGenericButParams() {}
impl X as GenericAndParams(X) {}
impl X as C(X).GenericNoParams {}
impl X as C(X).GenericAndParams(X) {}
// --- fail_non_generic_implicit_params.carbon
library "[[@TEST_NAME]]";
// CHECK:STDERR: fail_non_generic_implicit_params.carbon:[[@LINE+4]]:13: error: parameters of generic types must be constant [GenericParamMustBeConstant]
// CHECK:STDERR: interface A[T: type]() {}
// CHECK:STDERR: ^~~~~~~
// CHECK:STDERR:
interface A[T: type]() {}
// --- fail_non_generic_params.carbon
library "[[@TEST_NAME]]";
// CHECK:STDERR: fail_non_generic_params.carbon:[[@LINE+4]]:13: error: parameters of generic types must be constant [GenericParamMustBeConstant]
// CHECK:STDERR: interface A(T: type) {}
// CHECK:STDERR: ^~~~~~~
// CHECK:STDERR:
interface A(T: type) {}
// --- fail_implicit_params_only_empty.carbon
library "[[@TEST_NAME]]";
// CHECK:STDERR: fail_implicit_params_only_empty.carbon:[[@LINE+4]]:14: error: expected explicit parameters after implicit parameters [GenericMissingExplicitParameters]
// CHECK:STDERR: interface Bar[] {}
// CHECK:STDERR: ^~
// CHECK:STDERR:
interface Bar[] {}
// --- fail_implicit_params_only.carbon
library "[[@TEST_NAME]]";
// CHECK:STDERR: fail_implicit_params_only.carbon:[[@LINE+4]]:14: error: expected explicit parameters after implicit parameters [GenericMissingExplicitParameters]
// CHECK:STDERR: interface Bar[T:! type] {}
// CHECK:STDERR: ^~~~~~~~~~
// CHECK:STDERR:
interface Bar[T:! type] {}
// CHECK:STDOUT: --- params.carbon
// CHECK:STDOUT:
// CHECK:STDOUT: constants {
// CHECK:STDOUT: %NotGenericNoParams.type: type = facet_type <@NotGenericNoParams> [concrete]
// CHECK:STDOUT: %Self.124: %NotGenericNoParams.type = bind_symbolic_name Self, 0 [symbolic]
// CHECK:STDOUT: %NotGenericButParams.type.f26: type = generic_interface_type @NotGenericButParams [concrete]
// CHECK:STDOUT: %NotGenericButParams.generic: %NotGenericButParams.type.f26 = struct_value () [concrete]
// CHECK:STDOUT: %NotGenericButParams.type.5a1: type = facet_type <@NotGenericButParams> [concrete]
// CHECK:STDOUT: %Self.a21: %NotGenericButParams.type.5a1 = bind_symbolic_name Self, 0 [symbolic]
// CHECK:STDOUT: %type: type = facet_type <type> [concrete]
// CHECK:STDOUT: %.Self: %type = bind_symbolic_name .Self [symbolic_self]
// CHECK:STDOUT: %T: type = bind_symbolic_name T, 0 [symbolic]
// CHECK:STDOUT: %pattern_type: type = pattern_type type [concrete]
// CHECK:STDOUT: %GenericAndParams.type.cde: type = generic_interface_type @GenericAndParams.loc6 [concrete]
// CHECK:STDOUT: %GenericAndParams.generic.827: %GenericAndParams.type.cde = struct_value () [concrete]
// CHECK:STDOUT: %GenericAndParams.type.1f2: type = facet_type <@GenericAndParams.loc6, @GenericAndParams.loc6(%T)> [symbolic]
// CHECK:STDOUT: %Self.0fc: %GenericAndParams.type.1f2 = bind_symbolic_name Self, 1 [symbolic]
// CHECK:STDOUT: %C.type: type = generic_class_type @C [concrete]
// CHECK:STDOUT: %C.generic: %C.type = struct_value () [concrete]
// CHECK:STDOUT: %C.f2e: type = class_type @C, @C(%T) [symbolic]
// CHECK:STDOUT: %GenericNoParams.type.c3e: type = facet_type <@GenericNoParams, @GenericNoParams(%T)> [symbolic]
// CHECK:STDOUT: %Self.44c: %GenericNoParams.type.c3e = bind_symbolic_name Self, 1 [symbolic]
// CHECK:STDOUT: %U: type = bind_symbolic_name U, 1 [symbolic]
// CHECK:STDOUT: %GenericAndParams.type.597: type = generic_interface_type @GenericAndParams.loc10, @C(%T) [symbolic]
// CHECK:STDOUT: %GenericAndParams.generic.2ec: %GenericAndParams.type.597 = struct_value () [symbolic]
// CHECK:STDOUT: %GenericAndParams.type.5f0: type = facet_type <@GenericAndParams.loc10, @GenericAndParams.loc10(%T, %U)> [symbolic]
// CHECK:STDOUT: %Self.8b4: %GenericAndParams.type.5f0 = bind_symbolic_name Self, 2 [symbolic]
// CHECK:STDOUT: %empty_struct_type: type = struct_type {} [concrete]
// CHECK:STDOUT: %complete_type: <witness> = complete_type_witness %empty_struct_type [concrete]
// CHECK:STDOUT: %X: type = class_type @X [concrete]
// CHECK:STDOUT: %NotGenericNoParams.impl_witness: <witness> = impl_witness file.%NotGenericNoParams.impl_witness_table [concrete]
// CHECK:STDOUT: %NotGenericButParams.impl_witness: <witness> = impl_witness file.%NotGenericButParams.impl_witness_table [concrete]
// CHECK:STDOUT: %GenericAndParams.type.674: type = facet_type <@GenericAndParams.loc6, @GenericAndParams.loc6(%X)> [concrete]
// CHECK:STDOUT: %Self.9b1: %GenericAndParams.type.674 = bind_symbolic_name Self, 1 [symbolic]
// CHECK:STDOUT: %GenericAndParams.impl_witness.4a7: <witness> = impl_witness file.%GenericAndParams.impl_witness_table.loc16 [concrete]
// CHECK:STDOUT: %C.fac: type = class_type @C, @C(%X) [concrete]
// CHECK:STDOUT: %GenericNoParams.type.7ce: type = facet_type <@GenericNoParams, @GenericNoParams(%X)> [concrete]
// CHECK:STDOUT: %GenericAndParams.type.425: type = generic_interface_type @GenericAndParams.loc10, @C(%X) [concrete]
// CHECK:STDOUT: %GenericAndParams.generic.b50: %GenericAndParams.type.425 = struct_value () [concrete]
// CHECK:STDOUT: %Self.f4b: %GenericNoParams.type.7ce = bind_symbolic_name Self, 1 [symbolic]
// CHECK:STDOUT: %GenericNoParams.impl_witness: <witness> = impl_witness file.%GenericNoParams.impl_witness_table [concrete]
// CHECK:STDOUT: %GenericAndParams.type.25c: type = facet_type <@GenericAndParams.loc10, @GenericAndParams.loc10(%X, %X)> [concrete]
// CHECK:STDOUT: %Self.701: %GenericAndParams.type.25c = bind_symbolic_name Self, 2 [symbolic]
// CHECK:STDOUT: %GenericAndParams.impl_witness.e4a: <witness> = impl_witness file.%GenericAndParams.impl_witness_table.loc18 [concrete]
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: file {
// CHECK:STDOUT: package: <namespace> = namespace [concrete] {
// CHECK:STDOUT: .NotGenericNoParams = %NotGenericNoParams.decl
// CHECK:STDOUT: .NotGenericButParams = %NotGenericButParams.decl
// CHECK:STDOUT: .GenericAndParams = %GenericAndParams.decl
// CHECK:STDOUT: .C = %C.decl
// CHECK:STDOUT: .X = %X.decl
// CHECK:STDOUT: }
// CHECK:STDOUT: %NotGenericNoParams.decl: type = interface_decl @NotGenericNoParams [concrete = constants.%NotGenericNoParams.type] {} {}
// CHECK:STDOUT: %NotGenericButParams.decl: %NotGenericButParams.type.f26 = interface_decl @NotGenericButParams [concrete = constants.%NotGenericButParams.generic] {} {}
// CHECK:STDOUT: %GenericAndParams.decl: %GenericAndParams.type.cde = interface_decl @GenericAndParams.loc6 [concrete = constants.%GenericAndParams.generic.827] {
// CHECK:STDOUT: %T.patt: %pattern_type = symbolic_binding_pattern T, 0 [concrete]
// CHECK:STDOUT: } {
// CHECK:STDOUT: %.Self: %type = bind_symbolic_name .Self [symbolic_self = constants.%.Self]
// CHECK:STDOUT: %T.loc6_28.2: type = bind_symbolic_name T, 0 [symbolic = %T.loc6_28.1 (constants.%T)]
// CHECK:STDOUT: }
// CHECK:STDOUT: %C.decl: %C.type = class_decl @C [concrete = constants.%C.generic] {
// CHECK:STDOUT: %T.patt: %pattern_type = symbolic_binding_pattern T, 0 [concrete]
// CHECK:STDOUT: } {
// CHECK:STDOUT: %.Self: %type = bind_symbolic_name .Self [symbolic_self = constants.%.Self]
// CHECK:STDOUT: %T.loc8_9.2: type = bind_symbolic_name T, 0 [symbolic = %T.loc8_9.1 (constants.%T)]
// CHECK:STDOUT: }
// CHECK:STDOUT: %X.decl: type = class_decl @X [concrete = constants.%X] {} {}
// CHECK:STDOUT: impl_decl @X.as.NotGenericNoParams.impl [concrete] {} {
// CHECK:STDOUT: %X.ref: type = name_ref X, file.%X.decl [concrete = constants.%X]
// CHECK:STDOUT: %NotGenericNoParams.ref: type = name_ref NotGenericNoParams, file.%NotGenericNoParams.decl [concrete = constants.%NotGenericNoParams.type]
// CHECK:STDOUT: }
// CHECK:STDOUT: %NotGenericNoParams.impl_witness_table = impl_witness_table (), @X.as.NotGenericNoParams.impl [concrete]
// CHECK:STDOUT: %NotGenericNoParams.impl_witness: <witness> = impl_witness %NotGenericNoParams.impl_witness_table [concrete = constants.%NotGenericNoParams.impl_witness]
// CHECK:STDOUT: impl_decl @X.as.NotGenericButParams.impl [concrete] {} {
// CHECK:STDOUT: %X.ref: type = name_ref X, file.%X.decl [concrete = constants.%X]
// CHECK:STDOUT: %NotGenericButParams.ref: %NotGenericButParams.type.f26 = name_ref NotGenericButParams, file.%NotGenericButParams.decl [concrete = constants.%NotGenericButParams.generic]
// CHECK:STDOUT: %NotGenericButParams.type: type = facet_type <@NotGenericButParams> [concrete = constants.%NotGenericButParams.type.5a1]
// CHECK:STDOUT: }
// CHECK:STDOUT: %NotGenericButParams.impl_witness_table = impl_witness_table (), @X.as.NotGenericButParams.impl [concrete]
// CHECK:STDOUT: %NotGenericButParams.impl_witness: <witness> = impl_witness %NotGenericButParams.impl_witness_table [concrete = constants.%NotGenericButParams.impl_witness]
// CHECK:STDOUT: impl_decl @X.as.GenericAndParams.impl.19c [concrete] {} {
// CHECK:STDOUT: %X.ref.loc16_6: type = name_ref X, file.%X.decl [concrete = constants.%X]
// CHECK:STDOUT: %GenericAndParams.ref: %GenericAndParams.type.cde = name_ref GenericAndParams, file.%GenericAndParams.decl [concrete = constants.%GenericAndParams.generic.827]
// CHECK:STDOUT: %X.ref.loc16_28: type = name_ref X, file.%X.decl [concrete = constants.%X]
// CHECK:STDOUT: %GenericAndParams.type: type = facet_type <@GenericAndParams.loc6, @GenericAndParams.loc6(constants.%X)> [concrete = constants.%GenericAndParams.type.674]
// CHECK:STDOUT: }
// CHECK:STDOUT: %GenericAndParams.impl_witness_table.loc16 = impl_witness_table (), @X.as.GenericAndParams.impl.19c [concrete]
// CHECK:STDOUT: %GenericAndParams.impl_witness.loc16: <witness> = impl_witness %GenericAndParams.impl_witness_table.loc16 [concrete = constants.%GenericAndParams.impl_witness.4a7]
// CHECK:STDOUT: impl_decl @X.as.GenericNoParams.impl [concrete] {} {
// CHECK:STDOUT: %X.ref.loc17_6: type = name_ref X, file.%X.decl [concrete = constants.%X]
// CHECK:STDOUT: %C.ref: %C.type = name_ref C, file.%C.decl [concrete = constants.%C.generic]
// CHECK:STDOUT: %X.ref.loc17_13: type = name_ref X, file.%X.decl [concrete = constants.%X]
// CHECK:STDOUT: %C: type = class_type @C, @C(constants.%X) [concrete = constants.%C.fac]
// CHECK:STDOUT: %.loc17: type = specific_constant @C.%GenericNoParams.decl, @C(constants.%X) [concrete = constants.%GenericNoParams.type.7ce]
// CHECK:STDOUT: %GenericNoParams.ref: type = name_ref GenericNoParams, %.loc17 [concrete = constants.%GenericNoParams.type.7ce]
// CHECK:STDOUT: }
// CHECK:STDOUT: %GenericNoParams.impl_witness_table = impl_witness_table (), @X.as.GenericNoParams.impl [concrete]
// CHECK:STDOUT: %GenericNoParams.impl_witness: <witness> = impl_witness %GenericNoParams.impl_witness_table [concrete = constants.%GenericNoParams.impl_witness]
// CHECK:STDOUT: impl_decl @X.as.GenericAndParams.impl.4b3 [concrete] {} {
// CHECK:STDOUT: %X.ref.loc18_6: type = name_ref X, file.%X.decl [concrete = constants.%X]
// CHECK:STDOUT: %C.ref: %C.type = name_ref C, file.%C.decl [concrete = constants.%C.generic]
// CHECK:STDOUT: %X.ref.loc18_13: type = name_ref X, file.%X.decl [concrete = constants.%X]
// CHECK:STDOUT: %C: type = class_type @C, @C(constants.%X) [concrete = constants.%C.fac]
// CHECK:STDOUT: %.loc18: %GenericAndParams.type.425 = specific_constant @C.%GenericAndParams.decl, @C(constants.%X) [concrete = constants.%GenericAndParams.generic.b50]
// CHECK:STDOUT: %GenericAndParams.ref: %GenericAndParams.type.425 = name_ref GenericAndParams, %.loc18 [concrete = constants.%GenericAndParams.generic.b50]
// CHECK:STDOUT: %X.ref.loc18_33: type = name_ref X, file.%X.decl [concrete = constants.%X]
// CHECK:STDOUT: %GenericAndParams.type: type = facet_type <@GenericAndParams.loc10, @GenericAndParams.loc10(constants.%X, constants.%X)> [concrete = constants.%GenericAndParams.type.25c]
// CHECK:STDOUT: }
// CHECK:STDOUT: %GenericAndParams.impl_witness_table.loc18 = impl_witness_table (), @X.as.GenericAndParams.impl.4b3 [concrete]
// CHECK:STDOUT: %GenericAndParams.impl_witness.loc18: <witness> = impl_witness %GenericAndParams.impl_witness_table.loc18 [concrete = constants.%GenericAndParams.impl_witness.e4a]
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: interface @NotGenericNoParams {
// CHECK:STDOUT: %Self: %NotGenericNoParams.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.124]
// CHECK:STDOUT:
// CHECK:STDOUT: !members:
// CHECK:STDOUT: .Self = %Self
// CHECK:STDOUT: witness = ()
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: interface @NotGenericButParams {
// CHECK:STDOUT: %Self: %NotGenericButParams.type.5a1 = bind_symbolic_name Self, 0 [symbolic = constants.%Self.a21]
// CHECK:STDOUT:
// CHECK:STDOUT: !members:
// CHECK:STDOUT: .Self = %Self
// CHECK:STDOUT: witness = ()
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: generic interface @GenericAndParams.loc6(%T.loc6_28.2: type) {
// CHECK:STDOUT: %T.loc6_28.1: type = bind_symbolic_name T, 0 [symbolic = %T.loc6_28.1 (constants.%T)]
// CHECK:STDOUT:
// CHECK:STDOUT: !definition:
// CHECK:STDOUT: %GenericAndParams.type: type = facet_type <@GenericAndParams.loc6, @GenericAndParams.loc6(%T.loc6_28.1)> [symbolic = %GenericAndParams.type (constants.%GenericAndParams.type.1f2)]
// CHECK:STDOUT: %Self.2: @GenericAndParams.loc6.%GenericAndParams.type (%GenericAndParams.type.1f2) = bind_symbolic_name Self, 1 [symbolic = %Self.2 (constants.%Self.0fc)]
// CHECK:STDOUT:
// CHECK:STDOUT: interface {
// CHECK:STDOUT: %Self.1: @GenericAndParams.loc6.%GenericAndParams.type (%GenericAndParams.type.1f2) = bind_symbolic_name Self, 1 [symbolic = %Self.2 (constants.%Self.0fc)]
// CHECK:STDOUT:
// CHECK:STDOUT: !members:
// CHECK:STDOUT: .Self = %Self.1
// CHECK:STDOUT: witness = ()
// CHECK:STDOUT: }
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: generic interface @GenericNoParams(@C.%T.loc8_9.2: type) {
// CHECK:STDOUT: !definition:
// CHECK:STDOUT: %T: type = bind_symbolic_name T, 0 [symbolic = %T (constants.%T)]
// CHECK:STDOUT: %GenericNoParams.type: type = facet_type <@GenericNoParams, @GenericNoParams(%T)> [symbolic = %GenericNoParams.type (constants.%GenericNoParams.type.c3e)]
// CHECK:STDOUT: %Self.2: @GenericNoParams.%GenericNoParams.type (%GenericNoParams.type.c3e) = bind_symbolic_name Self, 1 [symbolic = %Self.2 (constants.%Self.44c)]
// CHECK:STDOUT:
// CHECK:STDOUT: interface {
// CHECK:STDOUT: %Self.1: @GenericNoParams.%GenericNoParams.type (%GenericNoParams.type.c3e) = bind_symbolic_name Self, 1 [symbolic = %Self.2 (constants.%Self.44c)]
// CHECK:STDOUT:
// CHECK:STDOUT: !members:
// CHECK:STDOUT: .Self = %Self.1
// CHECK:STDOUT: witness = ()
// CHECK:STDOUT: }
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: generic interface @GenericAndParams.loc10(@C.%T.loc8_9.2: type, %U.loc10_30.2: type) {
// CHECK:STDOUT: %U.loc10_30.1: type = bind_symbolic_name U, 1 [symbolic = %U.loc10_30.1 (constants.%U)]
// CHECK:STDOUT:
// CHECK:STDOUT: !definition:
// CHECK:STDOUT: %T: type = bind_symbolic_name T, 0 [symbolic = %T (constants.%T)]
// CHECK:STDOUT: %GenericAndParams.type: type = facet_type <@GenericAndParams.loc10, @GenericAndParams.loc10(%T, %U.loc10_30.1)> [symbolic = %GenericAndParams.type (constants.%GenericAndParams.type.5f0)]
// CHECK:STDOUT: %Self.2: @GenericAndParams.loc10.%GenericAndParams.type (%GenericAndParams.type.5f0) = bind_symbolic_name Self, 2 [symbolic = %Self.2 (constants.%Self.8b4)]
// CHECK:STDOUT:
// CHECK:STDOUT: interface {
// CHECK:STDOUT: %Self.1: @GenericAndParams.loc10.%GenericAndParams.type (%GenericAndParams.type.5f0) = bind_symbolic_name Self, 2 [symbolic = %Self.2 (constants.%Self.8b4)]
// CHECK:STDOUT:
// CHECK:STDOUT: !members:
// CHECK:STDOUT: .Self = %Self.1
// CHECK:STDOUT: witness = ()
// CHECK:STDOUT: }
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: impl @X.as.NotGenericNoParams.impl: %X.ref as %NotGenericNoParams.ref {
// CHECK:STDOUT: !members:
// CHECK:STDOUT: witness = file.%NotGenericNoParams.impl_witness
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: impl @X.as.NotGenericButParams.impl: %X.ref as %NotGenericButParams.type {
// CHECK:STDOUT: !members:
// CHECK:STDOUT: witness = file.%NotGenericButParams.impl_witness
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: impl @X.as.GenericAndParams.impl.19c: %X.ref.loc16_6 as %GenericAndParams.type {
// CHECK:STDOUT: !members:
// CHECK:STDOUT: witness = file.%GenericAndParams.impl_witness.loc16
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: impl @X.as.GenericNoParams.impl: %X.ref.loc17_6 as %GenericNoParams.ref {
// CHECK:STDOUT: !members:
// CHECK:STDOUT: witness = file.%GenericNoParams.impl_witness
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: impl @X.as.GenericAndParams.impl.4b3: %X.ref.loc18_6 as %GenericAndParams.type {
// CHECK:STDOUT: !members:
// CHECK:STDOUT: witness = file.%GenericAndParams.impl_witness.loc18
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: generic class @C(%T.loc8_9.2: type) {
// CHECK:STDOUT: %T.loc8_9.1: type = bind_symbolic_name T, 0 [symbolic = %T.loc8_9.1 (constants.%T)]
// CHECK:STDOUT:
// CHECK:STDOUT: !definition:
// CHECK:STDOUT: %GenericNoParams.type: type = facet_type <@GenericNoParams, @GenericNoParams(%T.loc8_9.1)> [symbolic = %GenericNoParams.type (constants.%GenericNoParams.type.c3e)]
// CHECK:STDOUT: %GenericAndParams.type: type = generic_interface_type @GenericAndParams.loc10, @C(%T.loc8_9.1) [symbolic = %GenericAndParams.type (constants.%GenericAndParams.type.597)]
// CHECK:STDOUT: %GenericAndParams.generic: @C.%GenericAndParams.type (%GenericAndParams.type.597) = struct_value () [symbolic = %GenericAndParams.generic (constants.%GenericAndParams.generic.2ec)]
// CHECK:STDOUT:
// CHECK:STDOUT: class {
// CHECK:STDOUT: %GenericNoParams.decl: type = interface_decl @GenericNoParams [symbolic = @C.%GenericNoParams.type (constants.%GenericNoParams.type.c3e)] {} {}
// CHECK:STDOUT: %GenericAndParams.decl: @C.%GenericAndParams.type (%GenericAndParams.type.597) = interface_decl @GenericAndParams.loc10 [symbolic = @C.%GenericAndParams.generic (constants.%GenericAndParams.generic.2ec)] {
// CHECK:STDOUT: %U.patt: %pattern_type = symbolic_binding_pattern U, 1 [concrete]
// CHECK:STDOUT: } {
// CHECK:STDOUT: %.Self: %type = bind_symbolic_name .Self [symbolic_self = constants.%.Self]
// CHECK:STDOUT: %U.loc10_30.2: type = bind_symbolic_name U, 1 [symbolic = %U.loc10_30.1 (constants.%U)]
// CHECK:STDOUT: }
// CHECK:STDOUT: %complete_type: <witness> = complete_type_witness constants.%empty_struct_type [concrete = constants.%complete_type]
// CHECK:STDOUT: complete_type_witness = %complete_type
// CHECK:STDOUT:
// CHECK:STDOUT: !members:
// CHECK:STDOUT: .Self = constants.%C.f2e
// CHECK:STDOUT: .GenericNoParams = %GenericNoParams.decl
// CHECK:STDOUT: .GenericAndParams = %GenericAndParams.decl
// CHECK:STDOUT: }
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: class @X {
// CHECK:STDOUT: %complete_type: <witness> = complete_type_witness constants.%empty_struct_type [concrete = constants.%complete_type]
// CHECK:STDOUT: complete_type_witness = %complete_type
// CHECK:STDOUT:
// CHECK:STDOUT: !members:
// CHECK:STDOUT: .Self = constants.%X
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: specific @GenericAndParams.loc6(constants.%T) {
// CHECK:STDOUT: %T.loc6_28.1 => constants.%T
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: specific @C(constants.%T) {
// CHECK:STDOUT: %T.loc8_9.1 => constants.%T
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: specific @GenericNoParams(constants.%T) {}
// CHECK:STDOUT:
// CHECK:STDOUT: specific @GenericAndParams.loc10(constants.%T, constants.%U) {
// CHECK:STDOUT: %U.loc10_30.1 => constants.%U
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: specific @GenericAndParams.loc6(constants.%X) {
// CHECK:STDOUT: %T.loc6_28.1 => constants.%X
// CHECK:STDOUT:
// CHECK:STDOUT: !definition:
// CHECK:STDOUT: %GenericAndParams.type => constants.%GenericAndParams.type.674
// CHECK:STDOUT: %Self.2 => constants.%Self.9b1
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: specific @C(constants.%X) {
// CHECK:STDOUT: %T.loc8_9.1 => constants.%X
// CHECK:STDOUT:
// CHECK:STDOUT: !definition:
// CHECK:STDOUT: %GenericNoParams.type => constants.%GenericNoParams.type.7ce
// CHECK:STDOUT: %GenericAndParams.type => constants.%GenericAndParams.type.425
// CHECK:STDOUT: %GenericAndParams.generic => constants.%GenericAndParams.generic.b50
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: specific @GenericNoParams(constants.%X) {
// CHECK:STDOUT: !definition:
// CHECK:STDOUT: %T => constants.%X
// CHECK:STDOUT: %GenericNoParams.type => constants.%GenericNoParams.type.7ce
// CHECK:STDOUT: %Self.2 => constants.%Self.f4b
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: specific @GenericAndParams.loc10(constants.%X, constants.%X) {
// CHECK:STDOUT: %U.loc10_30.1 => constants.%X
// CHECK:STDOUT:
// CHECK:STDOUT: !definition:
// CHECK:STDOUT: %T => constants.%X
// CHECK:STDOUT: %GenericAndParams.type => constants.%GenericAndParams.type.25c
// CHECK:STDOUT: %Self.2 => constants.%Self.701
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: --- fail_non_generic_implicit_params.carbon
// CHECK:STDOUT:
// CHECK:STDOUT: constants {
// CHECK:STDOUT: %A.type.495: type = generic_interface_type @A [concrete]
// CHECK:STDOUT: %A.generic: %A.type.495 = struct_value () [concrete]
// CHECK:STDOUT: %A.type.233: type = facet_type <@A> [concrete]
// CHECK:STDOUT: %Self: %A.type.233 = bind_symbolic_name Self, 0 [symbolic]
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: file {
// CHECK:STDOUT: package: <namespace> = namespace [concrete] {
// CHECK:STDOUT: .A = %A.decl
// CHECK:STDOUT: }
// CHECK:STDOUT: %A.decl: %A.type.495 = interface_decl @A [concrete = constants.%A.generic] {} {}
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: interface @A {
// CHECK:STDOUT: %Self: %A.type.233 = bind_symbolic_name Self, 0 [symbolic = constants.%Self]
// CHECK:STDOUT:
// CHECK:STDOUT: !members:
// CHECK:STDOUT: .Self = %Self
// CHECK:STDOUT: witness = ()
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: --- fail_non_generic_params.carbon
// CHECK:STDOUT:
// CHECK:STDOUT: constants {
// CHECK:STDOUT: %A.type.495: type = generic_interface_type @A [concrete]
// CHECK:STDOUT: %A.generic: %A.type.495 = struct_value () [concrete]
// CHECK:STDOUT: %A.type.233: type = facet_type <@A> [concrete]
// CHECK:STDOUT: %Self: %A.type.233 = bind_symbolic_name Self, 0 [symbolic]
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: file {
// CHECK:STDOUT: package: <namespace> = namespace [concrete] {
// CHECK:STDOUT: .A = %A.decl
// CHECK:STDOUT: }
// CHECK:STDOUT: %A.decl: %A.type.495 = interface_decl @A [concrete = constants.%A.generic] {} {}
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: interface @A {
// CHECK:STDOUT: %Self: %A.type.233 = bind_symbolic_name Self, 0 [symbolic = constants.%Self]
// CHECK:STDOUT:
// CHECK:STDOUT: !members:
// CHECK:STDOUT: .Self = %Self
// CHECK:STDOUT: witness = ()
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: --- fail_implicit_params_only_empty.carbon
// CHECK:STDOUT:
// CHECK:STDOUT: constants {
// CHECK:STDOUT: %Bar.type.982: type = generic_interface_type @Bar [concrete]
// CHECK:STDOUT: %Bar.generic: %Bar.type.982 = struct_value () [concrete]
// CHECK:STDOUT: %Bar.type.6b3: type = facet_type <@Bar> [concrete]
// CHECK:STDOUT: %Self: %Bar.type.6b3 = bind_symbolic_name Self, 0 [symbolic]
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: file {
// CHECK:STDOUT: package: <namespace> = namespace [concrete] {
// CHECK:STDOUT: .Bar = %Bar.decl
// CHECK:STDOUT: }
// CHECK:STDOUT: %Bar.decl: %Bar.type.982 = interface_decl @Bar [concrete = constants.%Bar.generic] {} {}
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: interface @Bar {
// CHECK:STDOUT: %Self: %Bar.type.6b3 = bind_symbolic_name Self, 0 [symbolic = constants.%Self]
// CHECK:STDOUT:
// CHECK:STDOUT: !members:
// CHECK:STDOUT: .Self = %Self
// CHECK:STDOUT: witness = ()
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: --- fail_implicit_params_only.carbon
// CHECK:STDOUT:
// CHECK:STDOUT: constants {
// CHECK:STDOUT: %type: type = facet_type <type> [concrete]
// CHECK:STDOUT: %.Self: %type = bind_symbolic_name .Self [symbolic_self]
// CHECK:STDOUT: %T: type = bind_symbolic_name T, 0 [symbolic]
// CHECK:STDOUT: %pattern_type: type = pattern_type type [concrete]
// CHECK:STDOUT: %Bar.type.982: type = generic_interface_type @Bar [concrete]
// CHECK:STDOUT: %Bar.generic: %Bar.type.982 = struct_value () [concrete]
// CHECK:STDOUT: %Bar.type.cf7: type = facet_type <@Bar, @Bar(%T)> [symbolic]
// CHECK:STDOUT: %Self: %Bar.type.cf7 = bind_symbolic_name Self, 1 [symbolic]
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: file {
// CHECK:STDOUT: package: <namespace> = namespace [concrete] {
// CHECK:STDOUT: .Bar = %Bar.decl
// CHECK:STDOUT: }
// CHECK:STDOUT: %Bar.decl: %Bar.type.982 = interface_decl @Bar [concrete = constants.%Bar.generic] {
// CHECK:STDOUT: %T.patt: %pattern_type = symbolic_binding_pattern T, 0 [concrete]
// CHECK:STDOUT: } {
// CHECK:STDOUT: %.Self: %type = bind_symbolic_name .Self [symbolic_self = constants.%.Self]
// CHECK:STDOUT: %T.loc8_15.2: type = bind_symbolic_name T, 0 [symbolic = %T.loc8_15.1 (constants.%T)]
// CHECK:STDOUT: }
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: generic interface @Bar(%T.loc8_15.2: type) {
// CHECK:STDOUT: %T.loc8_15.1: type = bind_symbolic_name T, 0 [symbolic = %T.loc8_15.1 (constants.%T)]
// CHECK:STDOUT:
// CHECK:STDOUT: !definition:
// CHECK:STDOUT: %Bar.type: type = facet_type <@Bar, @Bar(%T.loc8_15.1)> [symbolic = %Bar.type (constants.%Bar.type.cf7)]
// CHECK:STDOUT: %Self.2: @Bar.%Bar.type (%Bar.type.cf7) = bind_symbolic_name Self, 1 [symbolic = %Self.2 (constants.%Self)]
// CHECK:STDOUT:
// CHECK:STDOUT: interface {
// CHECK:STDOUT: %Self.1: @Bar.%Bar.type (%Bar.type.cf7) = bind_symbolic_name Self, 1 [symbolic = %Self.2 (constants.%Self)]
// CHECK:STDOUT:
// CHECK:STDOUT: !members:
// CHECK:STDOUT: .Self = %Self.1
// CHECK:STDOUT: witness = ()
// CHECK:STDOUT: }
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: specific @Bar(constants.%T) {
// CHECK:STDOUT: %T.loc8_15.1 => constants.%T
// CHECK:STDOUT: }
// CHECK:STDOUT:
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