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1//===--- FunctionPointer.h - Types for the constexpr VM ---------*- C++ -*-===//2//3// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.4// See https://llvm.org/LICENSE.txt for license information.5// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception6//7//===----------------------------------------------------------------------===//8 9#ifndef LLVM_CLANG_AST_INTERP_FUNCTION_POINTER_H10#define LLVM_CLANG_AST_INTERP_FUNCTION_POINTER_H11 12#include "Function.h"13#include "Primitives.h"14 15namespace clang {16class ASTContext;17class APValue;18namespace interp {19 20class FunctionPointer final {21private:22 const Function *Func;23 24public:25 FunctionPointer() = default;26 FunctionPointer(const Function *Func) : Func(Func) {}27 28 const Function *getFunction() const { return Func; }29 bool isZero() const { return !Func; }30 bool isWeak() const {31 if (!Func || !Func->getDecl())32 return false;33 34 return Func->getDecl()->isWeak();35 }36 37 APValue toAPValue(const ASTContext &) const;38 void print(llvm::raw_ostream &OS) const;39 40 std::string toDiagnosticString(const ASTContext &Ctx) const {41 if (!Func)42 return "nullptr";43 44 return toAPValue(Ctx).getAsString(Ctx, Func->getDecl()->getType());45 }46 47 uint64_t getIntegerRepresentation() const {48 return static_cast<uint64_t>(reinterpret_cast<uintptr_t>(Func));49 }50};51 52} // namespace interp53} // namespace clang54 55#endif56