YDB Import 588

1384556be6811c00a4098d426b8eda9be6d2a541

1 files changed, 0 insertions, 120 deletions

diff --git a/contrib/libs/clang14/lib/Basic/FileSystemStatCache.cpp b/contrib/libs/clang14/lib/Basic/FileSystemStatCache.cpp
deleted file mode 100644
index 415a4e2025d..00000000000
--- a/contrib/libs/clang14/lib/Basic/FileSystemStatCache.cpp
+++ /dev/null
@@ -1,120 +0,0 @@
-//===- FileSystemStatCache.cpp - Caching for 'stat' calls -----------------===//
-//
-// 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
-//
-//===----------------------------------------------------------------------===//
-//
-//  This file defines the FileSystemStatCache interface.
-//
-//===----------------------------------------------------------------------===//
-
-#include "clang/Basic/FileSystemStatCache.h"
-#include "llvm/Support/Chrono.h"
-#include "llvm/Support/ErrorOr.h"
-#include "llvm/Support/Path.h"
-#include "llvm/Support/VirtualFileSystem.h"
-#include <utility>
-
-using namespace clang;
-
-void FileSystemStatCache::anchor() {}
-
-/// FileSystemStatCache::get - Get the 'stat' information for the specified
-/// path, using the cache to accelerate it if possible.  This returns true if
-/// the path does not exist or false if it exists.
-///
-/// If isFile is true, then this lookup should only return success for files
-/// (not directories).  If it is false this lookup should only return
-/// success for directories (not files).  On a successful file lookup, the
-/// implementation can optionally fill in FileDescriptor with a valid
-/// descriptor and the client guarantees that it will close it.
-std::error_code
-FileSystemStatCache::get(StringRef Path, llvm::vfs::Status &Status,
-                         bool isFile, std::unique_ptr<llvm::vfs::File> *F,
-                         FileSystemStatCache *Cache,
-                         llvm::vfs::FileSystem &FS) {
-  bool isForDir = !isFile;
-  std::error_code RetCode;
-
-  // If we have a cache, use it to resolve the stat query.
-  if (Cache)
-    RetCode = Cache->getStat(Path, Status, isFile, F, FS);
-  else if (isForDir || !F) {
-    // If this is a directory or a file descriptor is not needed and we have
-    // no cache, just go to the file system.
-    llvm::ErrorOr<llvm::vfs::Status> StatusOrErr = FS.status(Path);
-    if (!StatusOrErr) {
-      RetCode = StatusOrErr.getError();
-    } else {
-      Status = *StatusOrErr;
-    }
-  } else {
-    // Otherwise, we have to go to the filesystem.  We can always just use
-    // 'stat' here, but (for files) the client is asking whether the file exists
-    // because it wants to turn around and *open* it.  It is more efficient to
-    // do "open+fstat" on success than it is to do "stat+open".
-    //
-    // Because of this, check to see if the file exists with 'open'.  If the
-    // open succeeds, use fstat to get the stat info.
-    auto OwnedFile = FS.openFileForRead(Path);
-
-    if (!OwnedFile) {
-      // If the open fails, our "stat" fails.
-      RetCode = OwnedFile.getError();
-    } else {
-      // Otherwise, the open succeeded.  Do an fstat to get the information
-      // about the file.  We'll end up returning the open file descriptor to the
-      // client to do what they please with it.
-      llvm::ErrorOr<llvm::vfs::Status> StatusOrErr = (*OwnedFile)->status();
-      if (StatusOrErr) {
-        Status = *StatusOrErr;
-        *F = std::move(*OwnedFile);
-      } else {
-        // fstat rarely fails.  If it does, claim the initial open didn't
-        // succeed.
-        *F = nullptr;
-        RetCode = StatusOrErr.getError();
-      }
-    }
-  }
-
-  // If the path doesn't exist, return failure.
-  if (RetCode)
-    return RetCode;
-
-  // If the path exists, make sure that its "directoryness" matches the clients
-  // demands.
-  if (Status.isDirectory() != isForDir) {
-    // If not, close the file if opened.
-    if (F)
-      *F = nullptr;
-    return std::make_error_code(
-        Status.isDirectory() ?
-            std::errc::is_a_directory : std::errc::not_a_directory);
-  }
-
-  return std::error_code();
-}
-
-std::error_code
-MemorizeStatCalls::getStat(StringRef Path, llvm::vfs::Status &Status,
-                           bool isFile,
-                           std::unique_ptr<llvm::vfs::File> *F,
-                           llvm::vfs::FileSystem &FS) {
-  auto err = get(Path, Status, isFile, F, nullptr, FS);
-  if (err) {
-    // Do not cache failed stats, it is easy to construct common inconsistent
-    // situations if we do, and they are not important for PCH performance
-    // (which currently only needs the stats to construct the initial
-    // FileManager entries).
-    return err;
-  }
-
-  // Cache file 'stat' results and directories with absolutely paths.
-  if (!Status.isDirectory() || llvm::sys::path::is_absolute(Path))
-    StatCalls[Path] = Status;
-
-  return std::error_code();
-}