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llvm-mirror/lib/Support/StringSaver.cpp
Eric Christopher 64f6530647 Temporarily Revert "[Support] Make UniqueStringSaver wrap a StringSet"
as it's causing asan failures in clangd. Followed up offline
with repro instructions.

This reverts commit 29560a89ddcaf3af9b8a73d98d968a0911d21e27.
2020-05-14 19:18:20 -07:00

27 lines
882 B
C++

//===-- StringSaver.cpp ---------------------------------------------------===//
//
// 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/Support/StringSaver.h"
using namespace llvm;
StringRef StringSaver::save(StringRef S) {
char *P = Alloc.Allocate<char>(S.size() + 1);
if (!S.empty())
memcpy(P, S.data(), S.size());
P[S.size()] = '\0';
return StringRef(P, S.size());
}
StringRef UniqueStringSaver::save(StringRef S) {
auto R = Unique.insert(S);
if (R.second) // cache miss, need to actually save the string
*R.first = Strings.save(S); // safe replacement with equal value
return *R.first;
}