Files
carbon-lang/toolchain/check/cpp/constant.h
T
Nicholas Bishop 0482b27c6b Support more types in MapConstantToAPValue by refactoring code out of ConvertArgToTemplateArg (#6923)
This doesn't change any of the current tests, but will be useful for
calling constexpr functions with bool/float params.
2026-03-18 16:11:42 +00:00

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1.5 KiB
C++

// 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_CHECK_CPP_CONSTANT_H_
#define CARBON_TOOLCHAIN_CHECK_CPP_CONSTANT_H_
#include <optional>
#include "clang/AST/APValue.h"
#include "toolchain/check/context.h"
#include "toolchain/sem_ir/ids.h"
namespace Carbon::Check {
// Converts an `APValue` to a Carbon `ConstantId`.
auto MapAPValueToConstant(Context& context, SemIR::LocId loc_id,
const clang::APValue& ap_value, clang::QualType type,
bool is_lvalue) -> SemIR::ConstantId;
// Converts a Carbon constant instruction to an `APValue`.
auto MapConstantToAPValue(Context& context, SemIR::InstId const_inst_id,
clang::QualType param_type)
-> std::optional<clang::APValue>;
// Attempt to evaluate a C++ constexpr variable as a Carbon constant.
auto EvalCppVarDecl(Context& context, SemIR::LocId loc_id,
const clang::VarDecl* var_decl, SemIR::TypeId type_id)
-> SemIR::ConstantId;
// Attempt to evaluate a call to a C++ constexpr/consteval function as a
// Carbon constant.
auto EvalCppCall(Context& context, SemIR::LocId loc_id,
SemIR::ClangDeclId clang_decl_id, SemIR::InstBlockId args_id)
-> SemIR::ConstantId;
} // namespace Carbon::Check
#endif // CARBON_TOOLCHAIN_CHECK_CPP_CONSTANT_H_