clang/lib/Index/FileIndexRecord.cpp

   1 //===--- FileIndexRecord.cpp - Index data per file --------------*- 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 #include "FileIndexRecord.h"
  10 #include "clang/AST/ASTContext.h"
  11 #include "clang/AST/DeclTemplate.h"
  12 #include "clang/Basic/SourceManager.h"
  13 #include "llvm/ADT/SmallString.h"
  14 #include "llvm/Support/Path.h"
  15
  16 using namespace clang;
  17 using namespace clang::index;
  18
  19 ArrayRef<DeclOccurrence>
  20 FileIndexRecord::getDeclOccurrencesSortedByOffset() const {
  21   if (!IsSorted) {
  22     llvm::stable_sort(Decls,
  23                       [](const DeclOccurrence &A, const DeclOccurrence &B) {
  24                         return A.Offset < B.Offset;
  25                       });
  26     IsSorted = true;
  27   }
  28   return Decls;
  29 }
  30
  31 void FileIndexRecord::addDeclOccurence(SymbolRoleSet Roles, unsigned Offset,
  32                                        const Decl *D,
  33                                        ArrayRef<SymbolRelation> Relations) {
  34   assert(D->isCanonicalDecl() &&
  35          "Occurrences should be associated with their canonical decl");
  36   IsSorted = false;
  37   Decls.emplace_back(Roles, Offset, D, Relations);
  38 }
  39
  40 void FileIndexRecord::addMacroOccurence(SymbolRoleSet Roles, unsigned Offset,
  41                                         const IdentifierInfo *Name,
  42                                         const MacroInfo *MI) {
  43   IsSorted = false;
  44   Decls.emplace_back(Roles, Offset, Name, MI);
  45 }
  46
  47 void FileIndexRecord::removeHeaderGuardMacros() {
  48   llvm::erase_if(Decls, [](const DeclOccurrence &D) {
  49     if (const auto *MI = D.DeclOrMacro.dyn_cast<const MacroInfo *>())
  50       return MI->isUsedForHeaderGuard();
  51     return false;
  52   });
  53 }
  54
  55 void FileIndexRecord::print(llvm::raw_ostream &OS, SourceManager &SM) const {
  56   OS << "DECLS BEGIN ---\n";
  57   for (auto &DclInfo : Decls) {
  58     if (const auto *D = DclInfo.DeclOrMacro.dyn_cast<const Decl *>()) {
  59       SourceLocation Loc = SM.getFileLoc(D->getLocation());
  60       PresumedLoc PLoc = SM.getPresumedLoc(Loc);
  61       OS << llvm::sys::path::filename(PLoc.getFilename()) << ':'
  62          << PLoc.getLine() << ':' << PLoc.getColumn();
  63
  64       if (const auto *ND = dyn_cast<NamedDecl>(D)) {
  65         OS << ' ' << ND->getDeclName();
  66       }
  67     } else {
  68       const auto *MI = DclInfo.DeclOrMacro.get<const MacroInfo *>();
  69       SourceLocation Loc = SM.getFileLoc(MI->getDefinitionLoc());
  70       PresumedLoc PLoc = SM.getPresumedLoc(Loc);
  71       OS << llvm::sys::path::filename(PLoc.getFilename()) << ':'
  72          << PLoc.getLine() << ':' << PLoc.getColumn();
  73       OS << ' ' << DclInfo.MacroName->getName();
  74     }
  75
  76     OS << '\n';
  77   }
  78   OS << "DECLS END ---\n";
  79 }