mirror of
https://github.com/carbon-language/carbon-lang.git
synced 2026-10-05 16:11:06 +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.
88 lines
3.0 KiB
Plaintext
88 lines
3.0 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/primitives.carbon
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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/alias/builtins.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/alias/builtins.carbon
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// --- i32.carbon
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library "[[@TEST_NAME]]";
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//@dump-sem-ir-begin
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alias a = i32;
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//@dump-sem-ir-end
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// --- bool.carbon
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library "[[@TEST_NAME]]";
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//@dump-sem-ir-begin
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alias b = bool;
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//@dump-sem-ir-end
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// --- bool_value.carbon
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library "[[@TEST_NAME]]";
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//@dump-sem-ir-begin
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alias a = false;
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let a_test: bool = a;
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//@dump-sem-ir-end
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// CHECK:STDOUT: --- i32.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: %int_32: Core.IntLiteral = int_value 32 [concrete]
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// CHECK:STDOUT: %i32: type = class_type @Int, @Int(%int_32) [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: %i32: type = type_literal constants.%i32 [concrete = constants.%i32]
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// CHECK:STDOUT: %a: type = alias_binding a, %i32 [concrete = constants.%i32]
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// CHECK:STDOUT: }
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// CHECK:STDOUT:
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// CHECK:STDOUT: --- bool.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: }
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// CHECK:STDOUT:
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// CHECK:STDOUT: file {
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// CHECK:STDOUT: %.loc5: type = type_literal bool [concrete = bool]
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// CHECK:STDOUT: %b: type = alias_binding b, %.loc5 [concrete = bool]
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// CHECK:STDOUT: }
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// CHECK:STDOUT:
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// CHECK:STDOUT: --- bool_value.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: %false: bool = bool_literal false [concrete]
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// CHECK:STDOUT: %pattern_type: type = pattern_type bool [concrete]
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// CHECK:STDOUT: %a_test.patt: %pattern_type = value_binding_pattern a_test [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: %false: bool = bool_literal false [concrete = constants.%false]
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// CHECK:STDOUT: %a: bool = alias_binding a, %false [concrete = constants.%false]
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// CHECK:STDOUT: %.loc7: type = type_literal bool [concrete = bool]
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// CHECK:STDOUT: %a_test: bool = wrapper_binding a_test, @__global_init.%a.ref
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// CHECK:STDOUT: name_binding_decl {
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// CHECK:STDOUT: %a_test.patt: %pattern_type = value_binding_pattern a_test [concrete = constants.%a_test.patt]
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// CHECK:STDOUT: }
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// CHECK:STDOUT: }
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// CHECK:STDOUT:
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// CHECK:STDOUT: fn @__global_init() {
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// CHECK:STDOUT: !entry:
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// CHECK:STDOUT: %a.ref: bool = name_ref a, file.%a [concrete = constants.%false]
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// CHECK:STDOUT: <elided>
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// CHECK:STDOUT: }
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// CHECK:STDOUT:
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