// Part of the Carbon Language project, under the Apache License v2.0 with LLVM
// Exceptions. See /LICENSE for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception

#ifndef CARBON_TOOLCHAIN_SEM_IR_STRINGIFY_H_
#define CARBON_TOOLCHAIN_SEM_IR_STRINGIFY_H_

#include "toolchain/sem_ir/file.h"
#include "toolchain/sem_ir/ids.h"

namespace Carbon::SemIR {

// Produces a string version of an instruction with a constant value. Generally,
// this should not be called directly. To format a constant value into a
// diagnostic, use a diagnostic parameter of type `InstIdAsConstant`. When the
// constant value is a type, use `InstIdAsType`, `InstIdAsRawType`, or
// `TypeOfInstId` where possible, or of type `TypeId` or `TypeIdAsRawType` if
// you don't have an expression describing the type.
auto StringifyConstantInst(const File& sem_ir, InstId outer_inst_id)
    -> std::string;

// Produces a string version of the name of a specific. Generally, this should
// not be called directly. To format a string into a diagnostic, use a
// diagnostic parameter of type `SpecificId`.
auto StringifySpecific(const File& sem_ir, SpecificId specific_id)
    -> std::string;

// Produces a string version of the name of a specific interface. If the
// interface is not generic, this is just the name of the interface. Otherwise,
// it is the interface name and its generic arguments.  Generally, this should
// not be called directly. To format a string into a diagnostic, use a
// diagnostic parameter of type `SpecificInterface`.
auto StringifySpecificInterface(const File& sem_ir,
                                SpecificInterface specific_interface)
    -> std::string;

// Produces a string version of the facet type. This contains the name of the
// interfaces or named constraints that the facet type names, and any
// requirements such as rewrites.
auto StringifyFacetType(const File& sem_ir, FacetTypeId facet_type_id)
    -> std::string;

}  // namespace Carbon::SemIR

#endif  // CARBON_TOOLCHAIN_SEM_IR_STRINGIFY_H_