mirror of
https://github.com/llvm/llvm-project.git
synced 2025-04-26 19:06:05 +00:00
db94852b9b
Convert them to Pointers, do the offset calculation and then convert them back to function pointers.
44 lines
1.4 KiB
C++
44 lines
1.4 KiB
C++
//===----------------------- FunctionPointer.cpp ----------------*- 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
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
#include "FunctionPointer.h"
|
|
|
|
namespace clang {
|
|
namespace interp {
|
|
|
|
APValue FunctionPointer::toAPValue(const ASTContext &) const {
|
|
if (!Func)
|
|
return APValue(static_cast<Expr *>(nullptr), CharUnits::Zero(), {},
|
|
/*OnePastTheEnd=*/false, /*IsNull=*/true);
|
|
|
|
if (!Valid)
|
|
return APValue(static_cast<Expr *>(nullptr),
|
|
CharUnits::fromQuantity(getIntegerRepresentation()), {},
|
|
/*OnePastTheEnd=*/false, /*IsNull=*/false);
|
|
|
|
if (Func->getDecl())
|
|
return APValue(Func->getDecl(), CharUnits::fromQuantity(Offset), {},
|
|
/*OnePastTheEnd=*/false, /*IsNull=*/false);
|
|
return APValue(Func->getExpr(), CharUnits::fromQuantity(Offset), {},
|
|
/*OnePastTheEnd=*/false, /*IsNull=*/false);
|
|
}
|
|
|
|
void FunctionPointer::print(llvm::raw_ostream &OS) const {
|
|
OS << "FnPtr(";
|
|
if (Func && Valid)
|
|
OS << Func->getName();
|
|
else if (Func)
|
|
OS << reinterpret_cast<uintptr_t>(Func);
|
|
else
|
|
OS << "nullptr";
|
|
OS << ") + " << Offset;
|
|
}
|
|
|
|
} // namespace interp
|
|
} // namespace clang
|