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//===--- FunctionPointer.h - Types for the constexpr VM ---------*- C++ -*-===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
#ifndef LLVM_CLANG_AST_INTERP_FUNCTION_POINTER_H
#define LLVM_CLANG_AST_INTERP_FUNCTION_POINTER_H
#include "Function.h"
#include "Primitives.h"
namespace clang {
class ASTContext;
class APValue;
namespace interp {
class FunctionPointer final {
private:
const Function *Func;
public:
FunctionPointer() = default;
FunctionPointer(const Function *Func) : Func(Func) {}
const Function *getFunction() const { return Func; }
bool isZero() const { return !Func; }
bool isWeak() const {
if (!Func || !Func->getDecl())
return false;
return Func->getDecl()->isWeak();
}
APValue toAPValue(const ASTContext &) const;
void print(llvm::raw_ostream &OS) const;
std::string toDiagnosticString(const ASTContext &Ctx) const {
if (!Func)
return "nullptr";
return toAPValue(Ctx).getAsString(Ctx, Func->getDecl()->getType());
}
uint64_t getIntegerRepresentation() const {
return static_cast<uint64_t>(reinterpret_cast<uintptr_t>(Func));
}
};
} // namespace interp
} // namespace clang
#endif
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