1 //===--- FileIndexRecord.cpp - Index data per file --------------*- C++ -*-===//
2 //
3 //                     The LLVM Compiler Infrastructure
4 //
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
7 //
8 //===----------------------------------------------------------------------===//
9 
10 #include "FileIndexRecord.h"
11 #include "clang/AST/ASTContext.h"
12 #include "clang/AST/DeclTemplate.h"
13 #include "clang/Basic/SourceManager.h"
14 #include "llvm/ADT/SmallString.h"
15 #include "llvm/Support/Path.h"
16 
17 using namespace clang;
18 using namespace clang::index;
19 
20 ArrayRef<DeclOccurrence>
getDeclOccurrencesSortedByOffset() const21 FileIndexRecord::getDeclOccurrencesSortedByOffset() const {
22   if (!IsSorted) {
23     llvm::stable_sort(Decls,
24                       [](const DeclOccurrence &A, const DeclOccurrence &B) {
25                         return A.Offset < B.Offset;
26                       });
27     IsSorted = true;
28   }
29   return Decls;
30 }
31 
addDeclOccurence(SymbolRoleSet Roles,unsigned Offset,const Decl * D,ArrayRef<SymbolRelation> Relations)32 void FileIndexRecord::addDeclOccurence(SymbolRoleSet Roles, unsigned Offset,
33                                        const Decl *D,
34                                        ArrayRef<SymbolRelation> Relations) {
35   assert(D->isCanonicalDecl() &&
36          "Occurrences should be associated with their canonical decl");
37   IsSorted = false;
38   Decls.emplace_back(Roles, Offset, D, Relations);
39 }
40 
addMacroOccurence(SymbolRoleSet Roles,unsigned Offset,const IdentifierInfo * Name,const MacroInfo * MI)41 void FileIndexRecord::addMacroOccurence(SymbolRoleSet Roles, unsigned Offset,
42                                         const IdentifierInfo *Name,
43                                         const MacroInfo *MI) {
44   IsSorted = false;
45   Decls.emplace_back(Roles, Offset, Name, MI);
46 }
47 
removeHeaderGuardMacros()48 void FileIndexRecord::removeHeaderGuardMacros() {
49   auto It =
50       std::remove_if(Decls.begin(), Decls.end(), [](const DeclOccurrence &D) {
51         if (const auto *MI = D.DeclOrMacro.dyn_cast<const MacroInfo *>())
52           return MI->isUsedForHeaderGuard();
53         return false;
54       });
55   Decls.erase(It, Decls.end());
56 }
57 
print(llvm::raw_ostream & OS,SourceManager & SM) const58 void FileIndexRecord::print(llvm::raw_ostream &OS, SourceManager &SM) const {
59   OS << "DECLS BEGIN ---\n";
60   for (auto &DclInfo : Decls) {
61     if (const auto *D = DclInfo.DeclOrMacro.dyn_cast<const Decl *>()) {
62       SourceLocation Loc = SM.getFileLoc(D->getLocation());
63       PresumedLoc PLoc = SM.getPresumedLoc(Loc);
64       OS << llvm::sys::path::filename(PLoc.getFilename()) << ':'
65          << PLoc.getLine() << ':' << PLoc.getColumn();
66 
67       if (const auto *ND = dyn_cast<NamedDecl>(D)) {
68         OS << ' ' << ND->getDeclName();
69       }
70     } else {
71       const auto *MI = DclInfo.DeclOrMacro.get<const MacroInfo *>();
72       SourceLocation Loc = SM.getFileLoc(MI->getDefinitionLoc());
73       PresumedLoc PLoc = SM.getPresumedLoc(Loc);
74       OS << llvm::sys::path::filename(PLoc.getFilename()) << ':'
75          << PLoc.getLine() << ':' << PLoc.getColumn();
76       OS << ' ' << DclInfo.MacroName->getName();
77     }
78 
79     OS << '\n';
80   }
81   OS << "DECLS END ---\n";
82 }
83