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eb69d7420e
* Add `RequireCompleteFacetType` and `ResolveFacetTypeImplWitness` to `check::Context`. Goal was to move code from `impl.cpp` (mostly) without functional changes. * Complete type information is cached with the facet type, and is stored in a `complete_facet_types()` table. * Main functional change is to diagnose attempts to use a rewrite constraint on an associated function. Some existing diagnostics have been updated. * Remove `check::Context::RequireDefinedType`: * For class types, use `RequireCompleteType` * For facet types, use `RequireCompleteFacetType` * Introduce a `SemIR::SpecificInterface` to hold an interface and specific id pair. * Keep the specific interface ids in the impl object. * Avoid some extra copies in `Dump` functions. * Future work missing from this PR: * Resolving for member access or actions that require impl lookup. * Resolving rewrites constraints that refer to non-concrete values. * Any support for adding implied constraints that result from a `where` clause (though TODOs have been added). --------- Co-authored-by: Josh L <josh11b@users.noreply.github.com> Co-authored-by: Richard Smith <richard@metafoo.co.uk> Co-authored-by: Dana Jansens <danakj@orodu.net>
109 lines
4.2 KiB
C++
109 lines
4.2 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/check/type.h"
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#include "toolchain/check/eval.h"
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#include "toolchain/check/facet_type.h"
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#include "toolchain/check/type_completion.h"
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namespace Carbon::Check {
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// Gets or forms a type_id for a type, given the instruction kind and arguments.
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template <typename InstT, typename... EachArgT>
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static auto GetTypeImpl(Context& context, EachArgT... each_arg)
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-> SemIR::TypeId {
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// TODO: Remove inst_id parameter from TryEvalInst.
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InstT inst = {SemIR::TypeType::SingletonTypeId, each_arg...};
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return context.types().GetTypeIdForTypeConstantId(
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TryEvalInst(context, SemIR::InstId::None, inst));
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}
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// Gets or forms a type_id for a type, given the instruction kind and arguments,
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// and completes the type. This should only be used when type completion cannot
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// fail.
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template <typename InstT, typename... EachArgT>
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static auto GetCompleteTypeImpl(Context& context, EachArgT... each_arg)
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-> SemIR::TypeId {
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auto type_id = GetTypeImpl<InstT>(context, each_arg...);
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CompleteTypeOrCheckFail(context, type_id);
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return type_id;
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}
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auto GetStructType(Context& context, SemIR::StructTypeFieldsId fields_id)
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-> SemIR::TypeId {
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return GetTypeImpl<SemIR::StructType>(context, fields_id);
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}
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auto GetTupleType(Context& context, llvm::ArrayRef<SemIR::TypeId> type_ids)
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-> SemIR::TypeId {
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return GetTypeImpl<SemIR::TupleType>(
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context, context.type_blocks().AddCanonical(type_ids));
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}
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auto GetAssociatedEntityType(Context& context, SemIR::TypeId interface_type_id)
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-> SemIR::TypeId {
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return GetTypeImpl<SemIR::AssociatedEntityType>(context, interface_type_id);
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}
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auto GetSingletonType(Context& context, SemIR::InstId singleton_id)
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-> SemIR::TypeId {
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CARBON_CHECK(SemIR::IsSingletonInstId(singleton_id));
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auto type_id = context.types().GetTypeIdForTypeInstId(singleton_id);
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// To keep client code simpler, complete builtin types before returning them.
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CompleteTypeOrCheckFail(context, type_id);
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return type_id;
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}
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auto GetClassType(Context& context, SemIR::ClassId class_id,
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SemIR::SpecificId specific_id) -> SemIR::TypeId {
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return GetTypeImpl<SemIR::ClassType>(context, class_id, specific_id);
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}
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auto GetFunctionType(Context& context, SemIR::FunctionId fn_id,
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SemIR::SpecificId specific_id) -> SemIR::TypeId {
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return GetCompleteTypeImpl<SemIR::FunctionType>(context, fn_id, specific_id);
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}
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auto GetFunctionTypeWithSelfType(Context& context,
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SemIR::InstId interface_function_type_id,
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SemIR::InstId self_id) -> SemIR::TypeId {
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return GetCompleteTypeImpl<SemIR::FunctionTypeWithSelfType>(
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context, interface_function_type_id, self_id);
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}
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auto GetGenericClassType(Context& context, SemIR::ClassId class_id,
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SemIR::SpecificId enclosing_specific_id)
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-> SemIR::TypeId {
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return GetCompleteTypeImpl<SemIR::GenericClassType>(context, class_id,
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enclosing_specific_id);
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}
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auto GetGenericInterfaceType(Context& context, SemIR::InterfaceId interface_id,
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SemIR::SpecificId enclosing_specific_id)
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-> SemIR::TypeId {
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return GetCompleteTypeImpl<SemIR::GenericInterfaceType>(
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context, interface_id, enclosing_specific_id);
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}
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auto GetInterfaceType(Context& context, SemIR::InterfaceId interface_id,
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SemIR::SpecificId specific_id) -> SemIR::TypeId {
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return GetTypeImpl<SemIR::FacetType>(
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context,
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FacetTypeFromInterface(context, interface_id, specific_id).facet_type_id);
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}
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auto GetPointerType(Context& context, SemIR::TypeId pointee_type_id)
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-> SemIR::TypeId {
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return GetTypeImpl<SemIR::PointerType>(context, pointee_type_id);
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}
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auto GetUnboundElementType(Context& context, SemIR::TypeId class_type_id,
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SemIR::TypeId element_type_id) -> SemIR::TypeId {
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return GetTypeImpl<SemIR::UnboundElementType>(context, class_type_id,
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element_type_id);
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}
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} // namespace Carbon::Check
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