mirror of
https://github.com/carbon-language/carbon-lang.git
synced 2026-09-24 21:00:13 +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.
85 lines
4.2 KiB
Plaintext
85 lines
4.2 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/none.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/interface/basic.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/interface/basic.carbon
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interface Empty {
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}
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interface ForwardDeclared;
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interface ForwardDeclared {
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fn F();
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}
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// CHECK:STDOUT: --- basic.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: %Empty.type: type = facet_type <@Empty> [concrete]
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// CHECK:STDOUT: %Self.d44: %Empty.type = symbolic_binding Self, 0 [symbolic]
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// CHECK:STDOUT: %ForwardDeclared.type: type = facet_type <@ForwardDeclared> [concrete]
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// CHECK:STDOUT: %Self.d56: %ForwardDeclared.type = symbolic_binding Self, 0 [symbolic]
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// CHECK:STDOUT: %ForwardDeclared.WithSelf.F.type: type = fn_type @ForwardDeclared.WithSelf.F, @ForwardDeclared.WithSelf(%Self.d56) [symbolic]
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// CHECK:STDOUT: %ForwardDeclared.WithSelf.F: %ForwardDeclared.WithSelf.F.type = struct_value () [symbolic]
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// CHECK:STDOUT: %ForwardDeclared.assoc_type: type = assoc_entity_type @ForwardDeclared [concrete]
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// CHECK:STDOUT: %assoc0: %ForwardDeclared.assoc_type = assoc_entity element0, @ForwardDeclared.WithSelf.%ForwardDeclared.WithSelf.F.decl [concrete]
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// CHECK:STDOUT: }
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// CHECK:STDOUT:
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// CHECK:STDOUT: file {
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// CHECK:STDOUT: package: <namespace> = namespace [concrete] {
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// CHECK:STDOUT: .Empty = %Empty.decl
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// CHECK:STDOUT: .ForwardDeclared = %ForwardDeclared.decl.loc18
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// CHECK:STDOUT: }
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// CHECK:STDOUT: %Empty.decl: type = interface_decl @Empty [concrete = constants.%Empty.type] {} {}
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// CHECK:STDOUT: %ForwardDeclared.decl.loc18: type = interface_decl @ForwardDeclared [concrete = constants.%ForwardDeclared.type] {} {}
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// CHECK:STDOUT: %ForwardDeclared.decl.loc20: type = interface_decl @ForwardDeclared [concrete = constants.%ForwardDeclared.type] {} {}
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// CHECK:STDOUT: }
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// CHECK:STDOUT:
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// CHECK:STDOUT: interface @Empty {
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// CHECK:STDOUT: %Self: %Empty.type = symbolic_binding Self, 0 [symbolic = constants.%Self.d44]
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// CHECK:STDOUT: %Empty.WithSelf.decl = interface_with_self_decl @Empty [concrete]
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// CHECK:STDOUT:
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// CHECK:STDOUT: !members:
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// CHECK:STDOUT: .Self = %Self
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// CHECK:STDOUT: witness = ()
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// CHECK:STDOUT:
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// CHECK:STDOUT: !requires:
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// CHECK:STDOUT: }
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// CHECK:STDOUT:
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// CHECK:STDOUT: interface @ForwardDeclared {
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// CHECK:STDOUT: %Self: %ForwardDeclared.type = symbolic_binding Self, 0 [symbolic = constants.%Self.d56]
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// CHECK:STDOUT: %ForwardDeclared.WithSelf.decl = interface_with_self_decl @ForwardDeclared [concrete]
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// CHECK:STDOUT:
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// CHECK:STDOUT: !with Self:
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// CHECK:STDOUT: %ForwardDeclared.WithSelf.F.decl: @ForwardDeclared.WithSelf.%ForwardDeclared.WithSelf.F.type (%ForwardDeclared.WithSelf.F.type) = fn_decl @ForwardDeclared.WithSelf.F [symbolic = @ForwardDeclared.WithSelf.%ForwardDeclared.WithSelf.F (constants.%ForwardDeclared.WithSelf.F)] {} {}
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// CHECK:STDOUT: %assoc0: %ForwardDeclared.assoc_type = assoc_entity element0, %ForwardDeclared.WithSelf.F.decl [concrete = constants.%assoc0]
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// CHECK:STDOUT:
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// CHECK:STDOUT: !members:
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// CHECK:STDOUT: .Self = %Self
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// CHECK:STDOUT: .F = @ForwardDeclared.WithSelf.%assoc0
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// CHECK:STDOUT: witness = (@ForwardDeclared.WithSelf.%ForwardDeclared.WithSelf.F.decl)
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// CHECK:STDOUT:
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// CHECK:STDOUT: !requires:
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// CHECK:STDOUT: }
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// CHECK:STDOUT:
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// CHECK:STDOUT: generic fn @ForwardDeclared.WithSelf.F(@ForwardDeclared.%Self: %ForwardDeclared.type) {
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// CHECK:STDOUT: fn();
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// CHECK:STDOUT: }
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// CHECK:STDOUT:
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// CHECK:STDOUT: specific @Empty.WithSelf(constants.%Self.d44) {}
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// CHECK:STDOUT:
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// CHECK:STDOUT: specific @ForwardDeclared.WithSelf(constants.%Self.d56) {}
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// CHECK:STDOUT:
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// CHECK:STDOUT: specific @ForwardDeclared.WithSelf.F(constants.%Self.d56) {}
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// CHECK:STDOUT:
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