mirror of
https://github.com/carbon-language/carbon-lang.git
synced 2026-10-05 22:02:55 +01:00
Richard Smith
a6acba9eab
Incidentally also supports import of pointers-to-pointers. Imported const-qualified types aren't especially useful just yet, because on the Carbon side we don't yet permit conversions from non-const to const types, so most of the tests still fail, but for different reasons now.
117 lines
4.9 KiB
C++
117 lines
4.9 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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#ifndef CARBON_TOOLCHAIN_CHECK_TYPE_H_
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#define CARBON_TOOLCHAIN_CHECK_TYPE_H_
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#include "llvm/ADT/ArrayRef.h"
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#include "toolchain/check/context.h"
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#include "toolchain/sem_ir/ids.h"
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namespace Carbon::Check {
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// Enforces that an integer type has a valid bit width.
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auto ValidateIntType(Context& context, SemIR::LocId loc_id,
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SemIR::IntType result) -> bool;
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// Enforces that the bit width is 64 for a float.
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auto ValidateFloatBitWidth(Context& context, SemIR::LocId loc_id,
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SemIR::InstId inst_id) -> bool;
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// Enforces that a float type has a valid bit width.
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auto ValidateFloatType(Context& context, SemIR::LocId loc_id,
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SemIR::FloatType result) -> bool;
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// Gets the type to use for an unbound associated entity declared in this
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// interface. For example, this is the type of `I.T` after
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// `interface I { let T:! type; }`. The name of the interface is used for
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// diagnostics.
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// TODO: Should we use a different type for each such entity, or the same type
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// for all associated entities?
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auto GetAssociatedEntityType(Context& context, SemIR::InterfaceId interface_id,
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SemIR::SpecificId interface_specific_id)
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-> SemIR::TypeId;
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// Gets a singleton type. The returned type will be complete. Requires that
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// `singleton_id` is already validated to be a singleton.
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auto GetSingletonType(Context& context, SemIR::TypeInstId singleton_id)
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-> SemIR::TypeId;
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// Gets a const-qualified version of a type.
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auto GetConstType(Context& context, SemIR::TypeInstId inner_type_id)
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-> SemIR::TypeId;
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// Gets a class type.
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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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// Gets a function type. The returned type will be complete.
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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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auto GetVtableType(Context& context, SemIR::VtableId vtable_id)
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-> SemIR::TypeId;
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// Gets the type of an associated function with the `Self` parameter bound to
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// a particular value. The returned type will be complete.
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auto GetFunctionTypeWithSelfType(Context& context,
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SemIR::TypeInstId interface_function_type_id,
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SemIR::InstId self_id) -> SemIR::TypeId;
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// Gets a generic class type, which is the type of a name of a generic class,
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// such as the type of `Vector` given `class Vector(T:! type)`. The returned
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// type will be complete.
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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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// Gets a generic interface type, which is the type of a name of a generic
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// interface, such as the type of `AddWith` given
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// `interface AddWith(T:! type)`. The returned type will be complete.
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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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// Gets the facet type corresponding to a particular interface.
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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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// Returns a pointer type whose pointee type is `pointee_type_id`.
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auto GetPointerType(Context& context, SemIR::TypeInstId pointee_type_id)
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-> SemIR::TypeId;
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// Returns a struct type with the given fields.
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auto GetStructType(Context& context, SemIR::StructTypeFieldsId fields_id)
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-> SemIR::TypeId;
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// Returns a tuple type with the given element types.
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auto GetTupleType(Context& context, llvm::ArrayRef<SemIR::InstId> type_inst_ids)
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-> SemIR::TypeId;
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// Returns a pattern type with the given scrutinee type.
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auto GetPatternType(Context& context, SemIR::TypeId scrutinee_type_id)
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-> SemIR::TypeId;
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// Returns an unbound element type.
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auto GetUnboundElementType(Context& context, SemIR::TypeInstId class_type_id,
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SemIR::TypeInstId element_type_id) -> SemIR::TypeId;
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// Convert a facet value or type value instruction to a canonical facet or type
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// value instruction.
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//
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// Type values are already canonical and are returned unchanged, except for
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// `FacetAccessType` which is unwrapped to find the facet value it refers to.
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//
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// For facet values, unwraps `FacetValue` instructions to get to an underlying
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// canonical type instruction.
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auto GetCanonicalizedFacetOrTypeValue(Context& context, SemIR::InstId inst_id)
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-> SemIR::InstId;
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auto GetCanonicalizedFacetOrTypeValue(Context& context,
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SemIR::ConstantId const_id)
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-> SemIR::ConstantId;
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} // namespace Carbon::Check
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#endif // CARBON_TOOLCHAIN_CHECK_TYPE_H_
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