C++ PathPieces::rbegin方法代码示例

void HTMLDiagnostics::ReportDiag(const PathDiagnostic& D,
                                 FilesMade *filesMade) {
    
  // Create the HTML directory if it is missing.
  if (!createdDir) {
    createdDir = true;
    std::string ErrorMsg;
    Directory.createDirectoryOnDisk(true, &ErrorMsg);

    bool IsDirectory;
    if (llvm::sys::fs::is_directory(Directory.str(), IsDirectory) ||
        !IsDirectory) {
      llvm::errs() << "warning: could not create directory '"
                   << Directory.str() << "'\n"
                   << "reason: " << ErrorMsg << '\n';

      noDir = true;

      return;
    }
  }

  if (noDir)
    return;

  // First flatten out the entire path to make it easier to use.
  PathPieces path = D.path.flatten(/*ShouldFlattenMacros=*/false);

  // The path as already been prechecked that all parts of the path are
  // from the same file and that it is non-empty.
  const SourceManager &SMgr = (*path.begin())->getLocation().getManager();
  assert(!path.empty());
  FileID FID =
    (*path.begin())->getLocation().asLocation().getExpansionLoc().getFileID();
  assert(!FID.isInvalid());

  // Create a new rewriter to generate HTML.
  Rewriter R(const_cast<SourceManager&>(SMgr), PP.getLangOpts());

  // Process the path.
  unsigned n = path.size();
  unsigned max = n;

  for (PathPieces::const_reverse_iterator I = path.rbegin(), 
       E = path.rend();
        I != E; ++I, --n)
    HandlePiece(R, FID, **I, n, max);

  // Add line numbers, header, footer, etc.

  // unsigned FID = R.getSourceMgr().getMainFileID();
  html::EscapeText(R, FID);
  html::AddLineNumbers(R, FID);

  // If we have a preprocessor, relex the file and syntax highlight.
  // We might not have a preprocessor if we come from a deserialized AST file,
  // for example.

  html::SyntaxHighlight(R, FID, PP);
  html::HighlightMacros(R, FID, PP);

  // Get the full directory name of the analyzed file.

  const FileEntry* Entry = SMgr.getFileEntryForID(FID);

  // This is a cludge; basically we want to append either the full
  // working directory if we have no directory information.  This is
  // a work in progress.

  std::string DirName = "";

  if (llvm::sys::path::is_relative(Entry->getName())) {
    llvm::sys::Path P = llvm::sys::Path::GetCurrentDirectory();
    DirName = P.str() + "/";
  }

  // Add the name of the file as an <h1> tag.

  {
    std::string s;
    llvm::raw_string_ostream os(s);

    os << "<!-- REPORTHEADER -->\n"
      << "<h3>Bug Summary</h3>\n<table class=\"simpletable\">\n"
          "<tr><td class=\"rowname\">File:</td><td>"
      << html::EscapeText(DirName)
      << html::EscapeText(Entry->getName())
      << "</td></tr>\n<tr><td class=\"rowname\">Location:</td><td>"
         "<a href=\"#EndPath\">line "
      << (*path.rbegin())->getLocation().asLocation().getExpansionLineNumber()
      << ", column "
      << (*path.rbegin())->getLocation().asLocation().getExpansionColumnNumber()
      << "</a></td></tr>\n"
         "<tr><td class=\"rowname\">Description:</td><td>"
      << D.getVerboseDescription() << "</td></tr>\n";

    // Output any other meta data.

    for (PathDiagnostic::meta_iterator I=D.meta_begin(), E=D.meta_end();
         I!=E; ++I) {
//.........这里部分代码省略.........

void HTMLDiagnostics::ReportDiag(const PathDiagnostic& D,
                                 FilesMade *filesMade) {

  // Create the HTML directory if it is missing.
  if (!createdDir) {
    createdDir = true;
    if (std::error_code ec = llvm::sys::fs::create_directories(Directory)) {
      llvm::errs() << "warning: could not create directory '"
                   << Directory << "': " << ec.message() << '\n';

      noDir = true;

      return;
    }
  }

  if (noDir)
    return;

  // First flatten out the entire path to make it easier to use.
  PathPieces path = D.path.flatten(/*ShouldFlattenMacros=*/false);

  // The path as already been prechecked that all parts of the path are
  // from the same file and that it is non-empty.
  const SourceManager &SMgr = (*path.begin())->getLocation().getManager();
  assert(!path.empty());
  FileID FID =
    (*path.begin())->getLocation().asLocation().getExpansionLoc().getFileID();
  assert(!FID.isInvalid());

  // Create a new rewriter to generate HTML.
  Rewriter R(const_cast<SourceManager&>(SMgr), PP.getLangOpts());

  // Get the function/method name
  SmallString<128> declName("unknown");
  int offsetDecl = 0;
  if (const Decl *DeclWithIssue = D.getDeclWithIssue()) {
      if (const NamedDecl *ND = dyn_cast<NamedDecl>(DeclWithIssue)) {
          declName = ND->getDeclName().getAsString();
      }

      if (const Stmt *Body = DeclWithIssue->getBody()) {
          // Retrieve the relative position of the declaration which will be used
          // for the file name
          FullSourceLoc L(
              SMgr.getExpansionLoc((*path.rbegin())->getLocation().asLocation()),
              SMgr);
          FullSourceLoc FunL(SMgr.getExpansionLoc(Body->getLocStart()), SMgr);
          offsetDecl = L.getExpansionLineNumber() - FunL.getExpansionLineNumber();
      }
  }

  // Process the path.
  unsigned n = path.size();
  unsigned max = n;

  for (PathPieces::const_reverse_iterator I = path.rbegin(),
       E = path.rend();
        I != E; ++I, --n)
    HandlePiece(R, FID, **I, n, max);

  // Add line numbers, header, footer, etc.

  // unsigned FID = R.getSourceMgr().getMainFileID();
  html::EscapeText(R, FID);
  html::AddLineNumbers(R, FID);

  // If we have a preprocessor, relex the file and syntax highlight.
  // We might not have a preprocessor if we come from a deserialized AST file,
  // for example.

  html::SyntaxHighlight(R, FID, PP);
  html::HighlightMacros(R, FID, PP);

  // Get the full directory name of the analyzed file.

  const FileEntry* Entry = SMgr.getFileEntryForID(FID);

  // This is a cludge; basically we want to append either the full
  // working directory if we have no directory information.  This is
  // a work in progress.

  llvm::SmallString<0> DirName;

  if (llvm::sys::path::is_relative(Entry->getName())) {
    llvm::sys::fs::current_path(DirName);
    DirName += '/';
  }

  int LineNumber = (*path.rbegin())->getLocation().asLocation().getExpansionLineNumber();
  int ColumnNumber = (*path.rbegin())->getLocation().asLocation().getExpansionColumnNumber();

  // Add the name of the file as an <h1> tag.

  {
    std::string s;
    llvm::raw_string_ostream os(s);

    os << "<!-- REPORTHEADER -->\n"
      << "<h3>Bug Summary</h3>\n<table class=\"simpletable\">\n"
//.........这里部分代码省略.........