//===- JsonSupport.h - JSON Output Utilities --------------------*- 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

//

//===----------------------------------------------------------------------===//

#ifndef LLVM_CLANG_BASIC_JSONSUPPORT_H

#define LLVM_CLANG_BASIC_JSONSUPPORT_H

#include "clang/Basic/LLVM.h"

#include "clang/Basic/SourceManager.h"

#include "llvm/ADT/StringRef.h"

#include "llvm/Support/Path.h"

#include "llvm/Support/raw_ostream.h"

#include <iterator>

namespace clang {

inline raw_ostream &Indent(raw_ostream &Out, const unsigned int Space,

                           bool IsDot) {

  for (unsigned int I = 0; I < Space * 2; 
++I16.3k
)

    Out << (IsDot ? 
"&nbsp;"11.5k
 : 
" "4.84k
);

  return Out;

}

inline std::string JsonFormat(StringRef RawSR, bool AddQuotes) {

  if (RawSR.empty())

    return "null";

  // Trim special characters.

  std::string Str = RawSR.trim().str();

  size_t Pos = 0;

  // Escape backslashes.

  while (true) {

    Pos = Str.find('\\', Pos);

    if (Pos == std::string::npos)

      break;

    // Prevent bad conversions.

    size_t TempPos = (Pos != 0) ? Pos - 1 : 
00
;

    // See whether the current backslash is not escaped.

    if (TempPos != Str.find("\\\\", Pos)) {

      Str.insert(Pos, "\\");

      ++Pos; // As we insert the backslash move plus one.

    }

    ++Pos;

  }

  // Escape double quotes.

  Pos = 0;

  while (true) {

    Pos = Str.find('\"', Pos);

    if (Pos == std::string::npos)

      break;

    // Prevent bad conversions.

    size_t TempPos = (Pos != 0) ? 
Pos - 162
 : 
014
;

    // See whether the current double quote is not escaped.

    if (TempPos != Str.find("\\\"", Pos)) {

      Str.insert(Pos, "\\");

      ++Pos; // As we insert the escape-character move plus one.

    }

    ++Pos;

  }

  // Remove new-lines.

  llvm::erase_value(Str, '\n');

  if (!AddQuotes)

    return Str;

  return '\"' + Str + '\"';

}

inline void printSourceLocationAsJson(raw_ostream &Out, SourceLocation Loc,

                                      const SourceManager &SM,

                                      bool AddBraces = true) {

  // Mostly copy-pasted from SourceLocation::print.

  if (!Loc.isValid()) {

    Out << "null";

    return;

  }

  if (Loc.isFileID()) {

    PresumedLoc PLoc = SM.getPresumedLoc(Loc);

    if (PLoc.isInvalid()) {

      Out << "null";

      return;

    }

    // The macro expansion and spelling pos is identical for file locs.

    if (AddBraces)

      Out << "{ ";

    std::string filename(PLoc.getFilename());

    if (is_style_windows(llvm::sys::path::Style::native)) {

      // Remove forbidden Windows path characters

      auto RemoveIt =

          std::remove_if(filename.begin(), filename.end(), [](auto Char) {

            static const char ForbiddenChars[] = "<>*?\"|";

            return std::find(std::begin(ForbiddenChars),

                             std::end(ForbiddenChars),

                             Char) != std::end(ForbiddenChars);

          });

      filename.erase(RemoveIt, filename.end());

      // Handle windows-specific path delimiters.

      std::replace(filename.begin(), filename.end(), '\\', '/');

    }

    Out << "\"line\": " << PLoc.getLine()

        << ", \"column\": " << PLoc.getColumn()

        << ", \"file\": \"" << filename << "\"";

    if (AddBraces)

      Out << " }";

    return;

  }

  // We want 'location: { ..., spelling: { ... }}' but not

  // 'location: { ... }, spelling: { ... }', hence the dance

  // with braces.

  Out << "{ ";

  printSourceLocationAsJson(Out, SM.getExpansionLoc(Loc), SM, false);

  Out << ", \"spelling\": ";

  printSourceLocationAsJson(Out, SM.getSpellingLoc(Loc), SM, true);

  Out << " }";

}

} // namespace clang

#endif // LLVM_CLANG_BASIC_JSONSUPPORT_H