llvm-project/llvm/lib/Support/Optional.cpp
Kazu Hirata 34bcadc38c Use std::nullopt_t instead of NoneType (NFC)
This patch replaces those occurrences of NoneType that would trigger
an error if the definition of NoneType were missing in None.h.

To keep this patch focused, I am deliberately not replacing None with
std::nullopt in this patch or updating comments.  They will be
addressed in subsequent patches.

This is part of an effort to migrate from llvm::Optional to
std::optional:

https://discourse.llvm.org/t/deprecating-llvm-optional-x-hasvalue-getvalue-getvalueor/63716

Differential Revision: https://reviews.llvm.org/D138539
2022-11-23 14:16:04 -08:00

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C++

//===- Optional.cpp - Optional values ---------------------------*- 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 "llvm/ADT/Optional.h"
#include "llvm/Support/raw_ostream.h"
llvm::raw_ostream &llvm::operator<<(raw_ostream &OS, std::nullopt_t) {
return OS << "None";
}