mirror of
https://github.com/carbon-language/carbon-lang.git
synced 2026-09-24 22:02:23 +01:00
Dana Jansens
5503f643c6
Add `InstIs`, `GetInstAs`, and `TryGetInstAs` which act on the underlying constant instruction in a constant value, to save an explicit call to `GetInstId`. ```carbon context.insts().GetAs<InstT>(context.constant_values().GetInstId(const_id)) ``` can now be written as simply ```carbon context.constant_values().GetInstAs<InstT>(const_id) ``` For future work, we might provide `GetInst()` so that `context.insts().Get(context.constant_values().GetInstId(const_id)` can be shortened also.
54 lines
1.6 KiB
C++
54 lines
1.6 KiB
C++
// 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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#include "toolchain/sem_ir/class.h"
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#include "toolchain/sem_ir/file.h"
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#include "toolchain/sem_ir/generic.h"
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#include "toolchain/sem_ir/ids.h"
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#include "toolchain/sem_ir/typed_insts.h"
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namespace Carbon::SemIR {
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static auto GetFoundationType(const File& file, SpecificId specific_id,
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InstId inst_id) -> TypeId {
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if (!inst_id.has_value()) {
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return TypeId::None;
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}
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if (inst_id == ErrorInst::InstId) {
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return ErrorInst::TypeId;
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}
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return TypeId::ForTypeConstant(GetConstantValueInSpecific(
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file, specific_id,
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file.insts().GetAs<AnyFoundationDecl>(inst_id).foundation_type_inst_id));
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}
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auto Class::GetAdaptedType(const File& file, SpecificId specific_id) const
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-> TypeId {
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return GetFoundationType(file, specific_id, adapt_id);
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}
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auto Class::GetBaseType(const File& file, SpecificId specific_id) const
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-> TypeId {
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return GetFoundationType(file, specific_id, base_id);
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}
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auto Class::GetObjectRepr(const File& file, SpecificId specific_id) const
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-> TypeId {
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if (!complete_type_witness_id.has_value()) {
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return TypeId::None;
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}
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auto witness_id =
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GetConstantValueInSpecific(file, specific_id, complete_type_witness_id);
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if (witness_id == ErrorInst::ConstantId) {
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return ErrorInst::TypeId;
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}
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return file.types().GetTypeIdForTypeInstId(
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file.constant_values()
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.GetInstAs<CompleteTypeWitness>(witness_id)
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.object_repr_type_inst_id);
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}
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} // namespace Carbon::SemIR
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