56 lines
1.4 KiB
C++
56 lines
1.4 KiB
C++
//===--- 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
|