YDB Import 588

1384556be6811c00a4098d426b8eda9be6d2a541

1 files changed, 0 insertions, 385 deletions

diff --git a/contrib/libs/clang14/lib/Frontend/DependencyFile.cpp b/contrib/libs/clang14/lib/Frontend/DependencyFile.cpp
deleted file mode 100644
index 28882737410..00000000000
--- a/contrib/libs/clang14/lib/Frontend/DependencyFile.cpp
+++ /dev/null
@@ -1,385 +0,0 @@
-//===--- DependencyFile.cpp - Generate dependency file --------------------===//
-//
-// 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 code generates dependency files.
-//
-//===----------------------------------------------------------------------===//
-
-#include "clang/Frontend/Utils.h"
-#include "clang/Basic/FileManager.h"
-#include "clang/Basic/SourceManager.h"
-#include "clang/Frontend/DependencyOutputOptions.h"
-#include "clang/Frontend/FrontendDiagnostic.h"
-#include "clang/Lex/DirectoryLookup.h"
-#include "clang/Lex/ModuleMap.h"
-#include "clang/Lex/PPCallbacks.h"
-#include "clang/Lex/Preprocessor.h"
-#include "clang/Serialization/ASTReader.h"
-#include "llvm/ADT/StringSet.h"
-#include "llvm/ADT/StringSwitch.h"
-#include "llvm/Support/FileSystem.h"
-#include "llvm/Support/Path.h"
-#include "llvm/Support/raw_ostream.h"
-
-using namespace clang;
-
-namespace {
-struct DepCollectorPPCallbacks : public PPCallbacks {
-  DependencyCollector &DepCollector;
-  SourceManager &SM;
-  DiagnosticsEngine &Diags;
-  DepCollectorPPCallbacks(DependencyCollector &L, SourceManager &SM,
-                          DiagnosticsEngine &Diags)
-      : DepCollector(L), SM(SM), Diags(Diags) {}
-
-  void FileChanged(SourceLocation Loc, FileChangeReason Reason,
-                   SrcMgr::CharacteristicKind FileType,
-                   FileID PrevFID) override {
-    if (Reason != PPCallbacks::EnterFile)
-      return;
-
-    // Dependency generation really does want to go all the way to the
-    // file entry for a source location to find out what is depended on.
-    // We do not want #line markers to affect dependency generation!
-    if (Optional<StringRef> Filename = SM.getNonBuiltinFilenameForID(
-            SM.getFileID(SM.getExpansionLoc(Loc))))
-      DepCollector.maybeAddDependency(
-          llvm::sys::path::remove_leading_dotslash(*Filename),
-          /*FromModule*/ false, isSystem(FileType), /*IsModuleFile*/ false,
-          /*IsMissing*/ false);
-  }
-
-  void FileSkipped(const FileEntryRef &SkippedFile, const Token &FilenameTok,
-                   SrcMgr::CharacteristicKind FileType) override {
-    StringRef Filename =
-        llvm::sys::path::remove_leading_dotslash(SkippedFile.getName());
-    DepCollector.maybeAddDependency(Filename, /*FromModule=*/false,
-                                    /*IsSystem=*/isSystem(FileType),
-                                    /*IsModuleFile=*/false,
-                                    /*IsMissing=*/false);
-  }
-
-  void InclusionDirective(SourceLocation HashLoc, const Token &IncludeTok,
-                          StringRef FileName, bool IsAngled,
-                          CharSourceRange FilenameRange, const FileEntry *File,
-                          StringRef SearchPath, StringRef RelativePath,
-                          const Module *Imported,
-                          SrcMgr::CharacteristicKind FileType) override {
-    if (!File)
-      DepCollector.maybeAddDependency(FileName, /*FromModule*/false,
-                                     /*IsSystem*/false, /*IsModuleFile*/false,
-                                     /*IsMissing*/true);
-    // Files that actually exist are handled by FileChanged.
-  }
-
-  void HasInclude(SourceLocation Loc, StringRef SpelledFilename, bool IsAngled,
-                  Optional<FileEntryRef> File,
-                  SrcMgr::CharacteristicKind FileType) override {
-    if (!File)
-      return;
-    StringRef Filename =
-        llvm::sys::path::remove_leading_dotslash(File->getName());
-    DepCollector.maybeAddDependency(Filename, /*FromModule=*/false,
-                                    /*IsSystem=*/isSystem(FileType),
-                                    /*IsModuleFile=*/false,
-                                    /*IsMissing=*/false);
-  }
-
-  void EndOfMainFile() override { DepCollector.finishedMainFile(Diags); }
-};
-
-struct DepCollectorMMCallbacks : public ModuleMapCallbacks {
-  DependencyCollector &DepCollector;
-  DepCollectorMMCallbacks(DependencyCollector &DC) : DepCollector(DC) {}
-
-  void moduleMapFileRead(SourceLocation Loc, const FileEntry &Entry,
-                         bool IsSystem) override {
-    StringRef Filename = Entry.getName();
-    DepCollector.maybeAddDependency(Filename, /*FromModule*/false,
-                                    /*IsSystem*/IsSystem,
-                                    /*IsModuleFile*/false,
-                                    /*IsMissing*/false);
-  }
-};
-
-struct DepCollectorASTListener : public ASTReaderListener {
-  DependencyCollector &DepCollector;
-  DepCollectorASTListener(DependencyCollector &L) : DepCollector(L) { }
-  bool needsInputFileVisitation() override { return true; }
-  bool needsSystemInputFileVisitation() override {
-    return DepCollector.needSystemDependencies();
-  }
-  void visitModuleFile(StringRef Filename,
-                       serialization::ModuleKind Kind) override {
-    DepCollector.maybeAddDependency(Filename, /*FromModule*/true,
-                                   /*IsSystem*/false, /*IsModuleFile*/true,
-                                   /*IsMissing*/false);
-  }
-  bool visitInputFile(StringRef Filename, bool IsSystem,
-                      bool IsOverridden, bool IsExplicitModule) override {
-    if (IsOverridden || IsExplicitModule)
-      return true;
-
-    DepCollector.maybeAddDependency(Filename, /*FromModule*/true, IsSystem,
-                                   /*IsModuleFile*/false, /*IsMissing*/false);
-    return true;
-  }
-};
-} // end anonymous namespace
-
-void DependencyCollector::maybeAddDependency(StringRef Filename,
-                                             bool FromModule, bool IsSystem,
-                                             bool IsModuleFile,
-                                             bool IsMissing) {
-  if (sawDependency(Filename, FromModule, IsSystem, IsModuleFile, IsMissing))
-    addDependency(Filename);
-}
-
-bool DependencyCollector::addDependency(StringRef Filename) {
-  StringRef SearchPath;
-#ifdef _WIN32
-  // Make the search insensitive to case and separators.
-  llvm::SmallString<256> TmpPath = Filename;
-  llvm::sys::path::native(TmpPath);
-  std::transform(TmpPath.begin(), TmpPath.end(), TmpPath.begin(), ::tolower);
-  SearchPath = TmpPath.str();
-#else
-  SearchPath = Filename;
-#endif
-
-  if (Seen.insert(SearchPath).second) {
-    Dependencies.push_back(std::string(Filename));
-    return true;
-  }
-  return false;
-}
-
-static bool isSpecialFilename(StringRef Filename) {
-  return llvm::StringSwitch<bool>(Filename)
-      .Case("<built-in>", true)
-      .Case("<stdin>", true)
-      .Default(false);
-}
-
-bool DependencyCollector::sawDependency(StringRef Filename, bool FromModule,
-                                        bool IsSystem, bool IsModuleFile,
-                                        bool IsMissing) {
-  return !isSpecialFilename(Filename) &&
-         (needSystemDependencies() || !IsSystem);
-}
-
-DependencyCollector::~DependencyCollector() { }
-void DependencyCollector::attachToPreprocessor(Preprocessor &PP) {
-  PP.addPPCallbacks(std::make_unique<DepCollectorPPCallbacks>(
-      *this, PP.getSourceManager(), PP.getDiagnostics()));
-  PP.getHeaderSearchInfo().getModuleMap().addModuleMapCallbacks(
-      std::make_unique<DepCollectorMMCallbacks>(*this));
-}
-void DependencyCollector::attachToASTReader(ASTReader &R) {
-  R.addListener(std::make_unique<DepCollectorASTListener>(*this));
-}
-
-DependencyFileGenerator::DependencyFileGenerator(
-    const DependencyOutputOptions &Opts)
-    : OutputFile(Opts.OutputFile), Targets(Opts.Targets),
-      IncludeSystemHeaders(Opts.IncludeSystemHeaders),
-      PhonyTarget(Opts.UsePhonyTargets),
-      AddMissingHeaderDeps(Opts.AddMissingHeaderDeps), SeenMissingHeader(false),
-      IncludeModuleFiles(Opts.IncludeModuleFiles),
-      OutputFormat(Opts.OutputFormat), InputFileIndex(0) {
-  for (const auto &ExtraDep : Opts.ExtraDeps) {
-    if (addDependency(ExtraDep.first))
-      ++InputFileIndex;
-  }
-}
-
-void DependencyFileGenerator::attachToPreprocessor(Preprocessor &PP) {
-  // Disable the "file not found" diagnostic if the -MG option was given.
-  if (AddMissingHeaderDeps)
-    PP.SetSuppressIncludeNotFoundError(true);
-
-  DependencyCollector::attachToPreprocessor(PP);
-}
-
-bool DependencyFileGenerator::sawDependency(StringRef Filename, bool FromModule,
-                                            bool IsSystem, bool IsModuleFile,
-                                            bool IsMissing) {
-  if (IsMissing) {
-    // Handle the case of missing file from an inclusion directive.
-    if (AddMissingHeaderDeps)
-      return true;
-    SeenMissingHeader = true;
-    return false;
-  }
-  if (IsModuleFile && !IncludeModuleFiles)
-    return false;
-
-  if (isSpecialFilename(Filename))
-    return false;
-
-  if (IncludeSystemHeaders)
-    return true;
-
-  return !IsSystem;
-}
-
-void DependencyFileGenerator::finishedMainFile(DiagnosticsEngine &Diags) {
-  outputDependencyFile(Diags);
-}
-
-/// Print the filename, with escaping or quoting that accommodates the three
-/// most likely tools that use dependency files: GNU Make, BSD Make, and
-/// NMake/Jom.
-///
-/// BSD Make is the simplest case: It does no escaping at all.  This means
-/// characters that are normally delimiters, i.e. space and # (the comment
-/// character) simply aren't supported in filenames.
-///
-/// GNU Make does allow space and # in filenames, but to avoid being treated
-/// as a delimiter or comment, these must be escaped with a backslash. Because
-/// backslash is itself the escape character, if a backslash appears in a
-/// filename, it should be escaped as well.  (As a special case, $ is escaped
-/// as $$, which is the normal Make way to handle the $ character.)
-/// For compatibility with BSD Make and historical practice, if GNU Make
-/// un-escapes characters in a filename but doesn't find a match, it will
-/// retry with the unmodified original string.
-///
-/// GCC tries to accommodate both Make formats by escaping any space or #
-/// characters in the original filename, but not escaping backslashes.  The
-/// apparent intent is so that filenames with backslashes will be handled
-/// correctly by BSD Make, and by GNU Make in its fallback mode of using the
-/// unmodified original string; filenames with # or space characters aren't
-/// supported by BSD Make at all, but will be handled correctly by GNU Make
-/// due to the escaping.
-///
-/// A corner case that GCC gets only partly right is when the original filename
-/// has a backslash immediately followed by space or #.  GNU Make would expect
-/// this backslash to be escaped; however GCC escapes the original backslash
-/// only when followed by space, not #.  It will therefore take a dependency
-/// from a directive such as
-///     #include "a\ b\#c.h"
-/// and emit it as
-///     a\\\ b\\#c.h
-/// which GNU Make will interpret as
-///     a\ b\
-/// followed by a comment. Failing to find this file, it will fall back to the
-/// original string, which probably doesn't exist either; in any case it won't
-/// find
-///     a\ b\#c.h
-/// which is the actual filename specified by the include directive.
-///
-/// Clang does what GCC does, rather than what GNU Make expects.
-///
-/// NMake/Jom has a different set of scary characters, but wraps filespecs in
-/// double-quotes to avoid misinterpreting them; see
-/// https://msdn.microsoft.com/en-us/library/dd9y37ha.aspx for NMake info,
-/// https://msdn.microsoft.com/en-us/library/windows/desktop/aa365247(v=vs.85).aspx
-/// for Windows file-naming info.
-static void PrintFilename(raw_ostream &OS, StringRef Filename,
-                          DependencyOutputFormat OutputFormat) {
-  // Convert filename to platform native path
-  llvm::SmallString<256> NativePath;
-  llvm::sys::path::native(Filename.str(), NativePath);
-
-  if (OutputFormat == DependencyOutputFormat::NMake) {
-    // Add quotes if needed. These are the characters listed as "special" to
-    // NMake, that are legal in a Windows filespec, and that could cause
-    // misinterpretation of the dependency string.
-    if (NativePath.find_first_of(" #${}^!") != StringRef::npos)
-      OS << '\"' << NativePath << '\"';
-    else
-      OS << NativePath;
-    return;
-  }
-  assert(OutputFormat == DependencyOutputFormat::Make);
-  for (unsigned i = 0, e = NativePath.size(); i != e; ++i) {
-    if (NativePath[i] == '#') // Handle '#' the broken gcc way.
-      OS << '\\';
-    else if (NativePath[i] == ' ') { // Handle space correctly.
-      OS << '\\';
-      unsigned j = i;
-      while (j > 0 && NativePath[--j] == '\\')
-        OS << '\\';
-    } else if (NativePath[i] == '$') // $ is escaped by $$.
-      OS << '$';
-    OS << NativePath[i];
-  }
-}
-
-void DependencyFileGenerator::outputDependencyFile(DiagnosticsEngine &Diags) {
-  if (SeenMissingHeader) {
-    llvm::sys::fs::remove(OutputFile);
-    return;
-  }
-
-  std::error_code EC;
-  llvm::raw_fd_ostream OS(OutputFile, EC, llvm::sys::fs::OF_TextWithCRLF);
-  if (EC) {
-    Diags.Report(diag::err_fe_error_opening) << OutputFile << EC.message();
-    return;
-  }
-
-  outputDependencyFile(OS);
-}
-
-void DependencyFileGenerator::outputDependencyFile(llvm::raw_ostream &OS) {
-  // Write out the dependency targets, trying to avoid overly long
-  // lines when possible. We try our best to emit exactly the same
-  // dependency file as GCC (4.2), assuming the included files are the
-  // same.
-  const unsigned MaxColumns = 75;
-  unsigned Columns = 0;
-
-  for (StringRef Target : Targets) {
-    unsigned N = Target.size();
-    if (Columns == 0) {
-      Columns += N;
-    } else if (Columns + N + 2 > MaxColumns) {
-      Columns = N + 2;
-      OS << " \\\n  ";
-    } else {
-      Columns += N + 1;
-      OS << ' ';
-    }
-    // Targets already quoted as needed.
-    OS << Target;
-  }
-
-  OS << ':';
-  Columns += 1;
-
-  // Now add each dependency in the order it was seen, but avoiding
-  // duplicates.
-  ArrayRef<std::string> Files = getDependencies();
-  for (StringRef File : Files) {
-    // Start a new line if this would exceed the column limit. Make
-    // sure to leave space for a trailing " \" in case we need to
-    // break the line on the next iteration.
-    unsigned N = File.size();
-    if (Columns + (N + 1) + 2 > MaxColumns) {
-      OS << " \\\n ";
-      Columns = 2;
-    }
-    OS << ' ';
-    PrintFilename(OS, File, OutputFormat);
-    Columns += N + 1;
-  }
-  OS << '\n';
-
-  // Create phony targets if requested.
-  if (PhonyTarget && !Files.empty()) {
-    unsigned Index = 0;
-    for (auto I = Files.begin(), E = Files.end(); I != E; ++I) {
-      if (Index++ == InputFileIndex)
-        continue;
-      OS << '\n';
-      PrintFilename(OS, *I, OutputFormat);
-      OS << ":\n";
-    }
-  }
-}