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  1. //===- PlistSupport.h - Plist Output Utilities ------------------*- C++ -*-===//
  2. //
  3. // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
  4. // See https://llvm.org/LICENSE.txt for license information.
  5. // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
  6. //
  7. //===----------------------------------------------------------------------===//
  8.  
  9. #ifndef LLVM_CLANG_BASIC_PLISTSUPPORT_H
  10. #define LLVM_CLANG_BASIC_PLISTSUPPORT_H
  11.  
  12. #include "clang/Basic/LLVM.h"
  13. #include "clang/Basic/SourceLocation.h"
  14. #include "clang/Basic/SourceManager.h"
  15. #include "llvm/ADT/DenseMap.h"
  16. #include "llvm/ADT/SmallVector.h"
  17. #include "llvm/ADT/StringRef.h"
  18. #include "llvm/Support/raw_ostream.h"
  19. #include <cassert>
  20. #include <cstdint>
  21.  
  22. namespace clang {
  23. namespace markup {
  24.  
  25. using FIDMap = llvm::DenseMap<FileID, unsigned>;
  26.  
  27. inline unsigned AddFID(FIDMap &FIDs, SmallVectorImpl<FileID> &V,
  28.                    FileID FID) {
  29.   FIDMap::iterator I = FIDs.find(FID);
  30.   if (I != FIDs.end())
  31.     return I->second;
  32.   unsigned NewValue = V.size();
  33.   FIDs[FID] = NewValue;
  34.   V.push_back(FID);
  35.   return NewValue;
  36. }
  37.  
  38. inline unsigned AddFID(FIDMap &FIDs, SmallVectorImpl<FileID> &V,
  39.                    const SourceManager &SM, SourceLocation L) {
  40.   FileID FID = SM.getFileID(SM.getExpansionLoc(L));
  41.   return AddFID(FIDs, V, FID);
  42. }
  43.  
  44. inline unsigned GetFID(const FIDMap &FIDs, FileID FID) {
  45.   FIDMap::const_iterator I = FIDs.find(FID);
  46.   assert(I != FIDs.end());
  47.   return I->second;
  48. }
  49.  
  50. inline unsigned GetFID(const FIDMap &FIDs, const SourceManager &SM,
  51.                        SourceLocation L) {
  52.   FileID FID = SM.getFileID(SM.getExpansionLoc(L));
  53.   return GetFID(FIDs, FID);
  54. }
  55.  
  56. inline raw_ostream &Indent(raw_ostream &o, const unsigned indent) {
  57.   for (unsigned i = 0; i < indent; ++i)
  58.     o << ' ';
  59.   return o;
  60. }
  61.  
  62. inline raw_ostream &EmitPlistHeader(raw_ostream &o) {
  63.   static const char *PlistHeader =
  64.       "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n"
  65.       "<!DOCTYPE plist PUBLIC \"-//Apple Computer//DTD PLIST 1.0//EN\" "
  66.       "\"http://www.apple.com/DTDs/PropertyList-1.0.dtd\">\n"
  67.       "<plist version=\"1.0\">\n";
  68.   return o << PlistHeader;
  69. }
  70.  
  71. inline raw_ostream &EmitInteger(raw_ostream &o, int64_t value) {
  72.   o << "<integer>";
  73.   o << value;
  74.   o << "</integer>";
  75.   return o;
  76. }
  77.  
  78. inline raw_ostream &EmitString(raw_ostream &o, StringRef s) {
  79.   o << "<string>";
  80.   for (StringRef::const_iterator I = s.begin(), E = s.end(); I != E; ++I) {
  81.     char c = *I;
  82.     switch (c) {
  83.     default:
  84.       o << c;
  85.       break;
  86.     case '&':
  87.       o << "&amp;";
  88.       break;
  89.     case '<':
  90.       o << "&lt;";
  91.       break;
  92.     case '>':
  93.       o << "&gt;";
  94.       break;
  95.     case '\'':
  96.       o << "&apos;";
  97.       break;
  98.     case '\"':
  99.       o << "&quot;";
  100.       break;
  101.     }
  102.   }
  103.   o << "</string>";
  104.   return o;
  105. }
  106.  
  107. inline void EmitLocation(raw_ostream &o, const SourceManager &SM,
  108.                          SourceLocation L, const FIDMap &FM, unsigned indent) {
  109.   if (L.isInvalid()) return;
  110.  
  111.   FullSourceLoc Loc(SM.getExpansionLoc(L), const_cast<SourceManager &>(SM));
  112.  
  113.   Indent(o, indent) << "<dict>\n";
  114.   Indent(o, indent) << " <key>line</key>";
  115.   EmitInteger(o, Loc.getExpansionLineNumber()) << '\n';
  116.   Indent(o, indent) << " <key>col</key>";
  117.   EmitInteger(o, Loc.getExpansionColumnNumber()) << '\n';
  118.   Indent(o, indent) << " <key>file</key>";
  119.   EmitInteger(o, GetFID(FM, SM, Loc)) << '\n';
  120.   Indent(o, indent) << "</dict>\n";
  121. }
  122.  
  123. inline void EmitRange(raw_ostream &o, const SourceManager &SM,
  124.                       CharSourceRange R, const FIDMap &FM, unsigned indent) {
  125.   if (R.isInvalid()) return;
  126.  
  127.   assert(R.isCharRange() && "cannot handle a token range");
  128.   Indent(o, indent) << "<array>\n";
  129.   EmitLocation(o, SM, R.getBegin(), FM, indent + 1);
  130.  
  131.   // The ".getLocWithOffset(-1)" emulates the behavior of an off-by-one bug
  132.   // in Lexer that is already fixed. It is here for backwards compatibility
  133.   // even though it is incorrect.
  134.   EmitLocation(o, SM, R.getEnd().getLocWithOffset(-1), FM, indent + 1);
  135.   Indent(o, indent) << "</array>\n";
  136. }
  137.  
  138. } // namespace markup
  139. } // namespace clang
  140.  
  141. #endif // LLVM_CLANG_BASIC_PLISTSUPPORT_H
  142.