mirror of
https://github.com/carbon-language/carbon-lang.git
synced 2026-10-05 18:01:07 +01:00
Dana Jansens
fcae9610bd
The type `type` is now a `FacetType` inst with no constraints. This brings the model implemented in the toolchain into better alignment with the language design. The `SemIR::TypeType` struct remains as a scope for holding the `TypeInstId`, `ConstantId`, and `TypeId` constants, but is not an `InstKind` anymore. The `TypeType` inst looks a lot like singletons, but there are many `FacetType` insts so it doesn't quite fit that model. So we put it alongside singletons with a fixed inst id but refer to it as a more general "builtin" inst that is not a singleton. `Namespace::PackageInstId` is similar, and we group it with `TypeType` conceptually as another builtin instruction with a fixed id. No conversion is needed anymore to use a `type` as a facet, since types also have a `FacetType` type. This simplifies and removes a number of helpers and branches throughout the code. The `TypeType` inst is now part of the constant store, so we end up printing it in the constants block in every test. But it's also named `type` rather than `%type` to preserve the majority of existing formatting behaviour, though this does look different from other constants. Assisted-by: Opus 5 was used to generate a first draft and validate the refactoring. Though nearly everything non-trivial the tool wrote has been modified or rewritten.
57 lines
2.7 KiB
Plaintext
57 lines
2.7 KiB
Plaintext
// Part of the Carbon Language project, under the Apache License v2.0 with LLVM
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// Exceptions. See /LICENSE for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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// INCLUDE-FILE: toolchain/testing/testdata/min_prelude/full.carbon
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// TODO: Add ranges and switch to "--dump-sem-ir-ranges=only".
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// EXTRA-ARGS: --dump-sem-ir-ranges=if-present
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//
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// AUTOUPDATE
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// TIP: To test this file alone, run:
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// TIP: bazel test //toolchain/testing:file_test --test_arg=--file_tests=toolchain/check/testdata/operators/overloaded/bit_complement.carbon
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// TIP: To dump output, run:
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// TIP: bazel run //toolchain/testing:file_test -- --dump_output --file_tests=toolchain/check/testdata/operators/overloaded/bit_complement.carbon
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// This file was generated from unary_op.carbon.tmpl. Run make_tests.sh to regenerate.
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package User;
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class C {};
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impl C as Core.BitComplement where .Result = C {
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fn Op(unused self: C) -> C {
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return {};
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}
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}
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fn TestOp(a: C) -> C {
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//@dump-sem-ir-begin
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return ^a;
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//@dump-sem-ir-end
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}
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// CHECK:STDOUT: --- bit_complement.carbon
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// CHECK:STDOUT:
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// CHECK:STDOUT: constants {
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// CHECK:STDOUT: type: type = facet_type <type> [concrete]
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// CHECK:STDOUT: %C: type = class_type @C [concrete]
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// CHECK:STDOUT: %BitComplement.type: type = facet_type <@BitComplement> [concrete]
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// CHECK:STDOUT: %BitComplement.impl_witness: <witness> = impl_witness @C.as.BitComplement.impl.%BitComplement.impl_witness_table [concrete]
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// CHECK:STDOUT: %C.as.BitComplement.impl.Op.type: type = fn_type @C.as.BitComplement.impl.Op [concrete]
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// CHECK:STDOUT: %C.as.BitComplement.impl.Op: %C.as.BitComplement.impl.Op.type = struct_value () [concrete]
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// CHECK:STDOUT: %BitComplement.facet: %BitComplement.type = facet_value %C, (%BitComplement.impl_witness) [concrete]
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// CHECK:STDOUT: %BitComplement.WithSelf.Op.type.47c: type = fn_type @BitComplement.WithSelf.Op, @BitComplement.WithSelf(%BitComplement.facet) [concrete]
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// CHECK:STDOUT: %.71a: type = fn_type_with_self_type %BitComplement.WithSelf.Op.type.47c, %BitComplement.facet [concrete]
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// CHECK:STDOUT: }
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// CHECK:STDOUT:
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// CHECK:STDOUT: fn @TestOp(%a.param: %C) -> out %return.param: %C {
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// CHECK:STDOUT: !entry:
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// CHECK:STDOUT: %a.ref: %C = name_ref a, %a
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// CHECK:STDOUT: %impl.elem1: %.71a = impl_witness_access constants.%BitComplement.impl_witness, element1 [concrete = constants.%C.as.BitComplement.impl.Op]
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// CHECK:STDOUT: %bound_method: <bound method> = bound_method %a.ref, %impl.elem1
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// CHECK:STDOUT: <elided>
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// CHECK:STDOUT: %C.as.BitComplement.impl.Op.call: init %C to %.loc27_20.1 = call %bound_method(%a.ref)
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// CHECK:STDOUT: return %C.as.BitComplement.impl.Op.call to %return.param
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// CHECK:STDOUT: }
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// CHECK:STDOUT:
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