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📄 APValue.h(20.92 KB)
📄 AST.h(907 B)
📄 ASTConcept.h(7.02 KB)
📄 ASTConsumer.h(5.99 KB)
📄 ASTContext.h(122.68 KB)
📄 ASTContextAllocate.h(1.33 KB)
📄 ASTDiagnostic.h(1.34 KB)
📄 ASTDumper.h(1.59 KB)
📄 ASTDumperUtils.h(3.49 KB)
📄 ASTFwd.h(1.01 KB)
📄 ASTImporter.h(22.86 KB)
📄 ASTImporterLookupTable.h(2.7 KB)
📄 ASTImporterSharedState.h(2.51 KB)
📄 ASTLambda.h(3.04 KB)
📄 ASTMutationListener.h(5.84 KB)
📄 ASTNodeTraverser.h(21.38 KB)
📄 ASTStructuralEquivalence.h(5.08 KB)
📄 ASTTypeTraits.h(19.65 KB)
📄 ASTUnresolvedSet.h(3.37 KB)
📄 ASTVector.h(11.75 KB)
📄 AbstractBasicReader.h(8.82 KB)
📄 AbstractBasicWriter.h(7.97 KB)
📄 AbstractTypeReader.h(922 B)
📄 AbstractTypeWriter.h(944 B)
📄 Attr.h(11.87 KB)
📄 AttrIterator.h(4.14 KB)
📄 AttrVisitor.h(2.56 KB)
📄 Availability.h(1.97 KB)
📄 BaseSubobject.h(2.74 KB)
📄 BuiltinTypes.def(9.91 KB)
📄 CXXInheritance.h(14.87 KB)
📄 CXXRecordDeclDefinitionBits.def(9.23 KB)
📄 CanonicalType.h(24.86 KB)
📄 CharUnits.h(8.02 KB)
📄 Comment.h(31.03 KB)
📄 CommentBriefParser.h(1.39 KB)
📄 CommentCommandTraits.h(5.86 KB)
📄 CommentCommands.td(9.27 KB)
📄 CommentDiagnostic.h(509 B)
📄 CommentHTMLNamedCharacterReferences.td(4.98 KB)
📄 CommentHTMLTags.td(2.17 KB)
📄 CommentLexer.h(9.96 KB)
📄 CommentParser.h(3.24 KB)
📄 CommentSema.h(9.87 KB)
📄 CommentVisitor.h(2.38 KB)
📄 ComparisonCategories.h(7.41 KB)
📄 ComputeDependence.h(7.41 KB)
📄 CurrentSourceLocExprScope.h(2.43 KB)
📄 DataCollection.h(2.45 KB)
📄 Decl.h(168.07 KB)
📄 DeclAccessPair.h(1.77 KB)
📄 DeclBase.h(93.13 KB)
📄 DeclCXX.h(151.69 KB)
📄 DeclContextInternals.h(8.22 KB)
📄 DeclFriend.h(8.06 KB)
📄 DeclGroup.h(4.11 KB)
📄 DeclLookups.h(3.64 KB)
📄 DeclObjC.h(101.2 KB)
📄 DeclObjCCommon.h(1.72 KB)
📄 DeclOpenMP.h(19.33 KB)
📄 DeclTemplate.h(122.19 KB)
📄 DeclVisitor.h(2.51 KB)
📄 DeclarationName.h(33.77 KB)
📄 DependenceFlags.h(10.99 KB)
📄 DependentDiagnostic.h(5.4 KB)
📄 EvaluatedExprVisitor.h(4.45 KB)
📄 Expr.h(234.85 KB)
📄 ExprCXX.h(169.78 KB)
📄 ExprConcepts.h(19.62 KB)
📄 ExprObjC.h(58.96 KB)
📄 ExprOpenMP.h(15.48 KB)
📄 ExternalASTMerger.h(8.11 KB)
📄 ExternalASTSource.h(20.55 KB)
📄 FormatString.h(22.81 KB)
📄 GlobalDecl.h(7.16 KB)
📄 JSONNodeDumper.h(17.53 KB)
📄 LambdaCapture.h(4.71 KB)
📄 LexicallyOrderedRecursiveASTVisitor.h(5.92 KB)
📄 LocInfoType.h(1.84 KB)
📄 Mangle.h(10.65 KB)
📄 MangleNumberingContext.h(2 KB)
📄 NSAPI.h(9.23 KB)
📄 NestedNameSpecifier.h(18.53 KB)
📄 NonTrivialTypeVisitor.h(4 KB)
📄 ODRHash.h(3.42 KB)
📄 OSLog.h(5.08 KB)
📄 OpenMPClause.h(276.08 KB)
📄 OperationKinds.def(14.91 KB)
📄 OperationKinds.h(1.5 KB)
📄 OptionalDiagnostic.h(2.39 KB)
📄 ParentMap.h(1.89 KB)
📄 ParentMapContext.h(4.74 KB)
📄 PrettyDeclStackTrace.h(1.39 KB)
📄 PrettyPrinter.h(8.47 KB)
📄 PropertiesBase.td(17.03 KB)
📄 QualTypeNames.h(3.15 KB)
📄 RawCommentList.h(6.6 KB)
📄 RecordLayout.h(11.49 KB)
📄 RecursiveASTVisitor.h(124.41 KB)
📄 Redeclarable.h(14.34 KB)
📄 SelectorLocationsKind.h(3.28 KB)
📄 Stmt.h(113 KB)
📄 StmtCXX.h(17.59 KB)
📄 StmtDataCollectors.td(5.64 KB)
📄 StmtGraphTraits.h(2.18 KB)
📄 StmtIterator.h(4.2 KB)
📄 StmtObjC.h(12.86 KB)
📄 StmtOpenMP.h(189.5 KB)
📄 StmtVisitor.h(8.74 KB)
📄 TemplateArgumentVisitor.h(3.38 KB)
📄 TemplateBase.h(22.86 KB)
📄 TemplateName.h(19.34 KB)
📄 TextNodeDumper.h(15.7 KB)
📄 Type.h(248.38 KB)
📄 TypeLoc.h(73.03 KB)
📄 TypeLocNodes.def(1.45 KB)
📄 TypeLocVisitor.h(1.76 KB)
📄 TypeOrdering.h(2.38 KB)
📄 TypeProperties.td(25.87 KB)
📄 TypeVisitor.h(3.32 KB)
📄 UnresolvedSet.h(5.25 KB)
📄 VTTBuilder.h(5.19 KB)
📄 VTableBuilder.h(20.31 KB)

Editing: Mangle.h

//===--- Mangle.h - Mangle C++ Names ----------------------------*- 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
//
//===----------------------------------------------------------------------===//
//
// Defines the C++ name mangling interface.
//
//===----------------------------------------------------------------------===//

#ifndef LLVM_CLANG_AST_MANGLE_H
#define LLVM_CLANG_AST_MANGLE_H

#include "clang/AST/Decl.h"
#include "clang/AST/GlobalDecl.h"
#include "clang/AST/Type.h"
#include "clang/Basic/ABI.h"
#include "llvm/ADT/DenseMap.h"
#include "llvm/Support/Casting.h"

namespace llvm {
  class raw_ostream;
}

namespace clang {
  class ASTContext;
  class BlockDecl;
  class CXXConstructorDecl;
  class CXXDestructorDecl;
  class CXXMethodDecl;
  class FunctionDecl;
  struct MethodVFTableLocation;
  class NamedDecl;
  class ObjCMethodDecl;
  class StringLiteral;
  struct ThisAdjustment;
  struct ThunkInfo;
  class VarDecl;

/// MangleContext - Context for tracking state which persists across multiple
/// calls to the C++ name mangler.
class MangleContext {
public:
  enum ManglerKind {
    MK_Itanium,
    MK_Microsoft
  };

private:
  virtual void anchor();

ASTContext &Context;
  DiagnosticsEngine &Diags;
  const ManglerKind Kind;

llvm::DenseMap<const BlockDecl*, unsigned> GlobalBlockIds;
  llvm::DenseMap<const BlockDecl*, unsigned> LocalBlockIds;
  llvm::DenseMap<const NamedDecl*, uint64_t> AnonStructIds;

public:
  ManglerKind getKind() const { return Kind; }

explicit MangleContext(ASTContext &Context,
                         DiagnosticsEngine &Diags,
                         ManglerKind Kind)
      : Context(Context), Diags(Diags), Kind(Kind) {}

virtual ~MangleContext() { }

ASTContext &getASTContext() const { return Context; }

DiagnosticsEngine &getDiags() const { return Diags; }

virtual void startNewFunction() { LocalBlockIds.clear(); }

unsigned getBlockId(const BlockDecl *BD, bool Local) {
    llvm::DenseMap<const BlockDecl *, unsigned> &BlockIds
      = Local? LocalBlockIds : GlobalBlockIds;
    std::pair<llvm::DenseMap<const BlockDecl *, unsigned>::iterator, bool>
      Result = BlockIds.insert(std::make_pair(BD, BlockIds.size()));
    return Result.first->second;
  }

uint64_t getAnonymousStructId(const NamedDecl *D) {
    std::pair<llvm::DenseMap<const NamedDecl *, uint64_t>::iterator, bool>
        Result = AnonStructIds.insert(std::make_pair(D, AnonStructIds.size()));
    return Result.first->second;
  }

/// @name Mangler Entry Points
  /// @{

bool shouldMangleDeclName(const NamedDecl *D);
  virtual bool shouldMangleCXXName(const NamedDecl *D) = 0;
  virtual bool shouldMangleStringLiteral(const StringLiteral *SL) = 0;

// FIXME: consider replacing raw_ostream & with something like SmallString &.
  void mangleName(GlobalDecl GD, raw_ostream &);
  virtual void mangleCXXName(GlobalDecl GD, raw_ostream &) = 0;
  virtual void mangleThunk(const CXXMethodDecl *MD,
                          const ThunkInfo &Thunk,
                          raw_ostream &) = 0;
  virtual void mangleCXXDtorThunk(const CXXDestructorDecl *DD, CXXDtorType Type,
                                  const ThisAdjustment &ThisAdjustment,
                                  raw_ostream &) = 0;
  virtual void mangleReferenceTemporary(const VarDecl *D,
                                        unsigned ManglingNumber,
                                        raw_ostream &) = 0;
  virtual void mangleCXXRTTI(QualType T, raw_ostream &) = 0;
  virtual void mangleCXXRTTIName(QualType T, raw_ostream &) = 0;
  virtual void mangleStringLiteral(const StringLiteral *SL, raw_ostream &) = 0;
  virtual void mangleMSGuidDecl(const MSGuidDecl *GD, raw_ostream&);

void mangleGlobalBlock(const BlockDecl *BD,
                         const NamedDecl *ID,
                         raw_ostream &Out);
  void mangleCtorBlock(const CXXConstructorDecl *CD, CXXCtorType CT,
                       const BlockDecl *BD, raw_ostream &Out);
  void mangleDtorBlock(const CXXDestructorDecl *CD, CXXDtorType DT,
                       const BlockDecl *BD, raw_ostream &Out);
  void mangleBlock(const DeclContext *DC, const BlockDecl *BD,
                   raw_ostream &Out);

void mangleObjCMethodNameWithoutSize(const ObjCMethodDecl *MD, raw_ostream &);
  void mangleObjCMethodName(const ObjCMethodDecl *MD, raw_ostream &);

virtual void mangleStaticGuardVariable(const VarDecl *D, raw_ostream &) = 0;

virtual void mangleDynamicInitializer(const VarDecl *D, raw_ostream &) = 0;

virtual void mangleDynamicAtExitDestructor(const VarDecl *D,
                                             raw_ostream &) = 0;

virtual void mangleSEHFilterExpression(const NamedDecl *EnclosingDecl,
                                         raw_ostream &Out) = 0;

virtual void mangleSEHFinallyBlock(const NamedDecl *EnclosingDecl,
                                     raw_ostream &Out) = 0;

/// Generates a unique string for an externally visible type for use with TBAA
  /// or type uniquing.
  /// TODO: Extend this to internal types by generating names that are unique
  /// across translation units so it can be used with LTO.
  virtual void mangleTypeName(QualType T, raw_ostream &) = 0;

/// @}
};

class ItaniumMangleContext : public MangleContext {
  bool IsUniqueNameMangler = false;
public:
  explicit ItaniumMangleContext(ASTContext &C, DiagnosticsEngine &D)
      : MangleContext(C, D, MK_Itanium) {}
  explicit ItaniumMangleContext(ASTContext &C, DiagnosticsEngine &D,
                                bool IsUniqueNameMangler)
      : MangleContext(C, D, MK_Itanium),
        IsUniqueNameMangler(IsUniqueNameMangler) {}

virtual void mangleCXXVTable(const CXXRecordDecl *RD, raw_ostream &) = 0;
  virtual void mangleCXXVTT(const CXXRecordDecl *RD, raw_ostream &) = 0;
  virtual void mangleCXXCtorVTable(const CXXRecordDecl *RD, int64_t Offset,
                                   const CXXRecordDecl *Type,
                                   raw_ostream &) = 0;
  virtual void mangleItaniumThreadLocalInit(const VarDecl *D,
                                            raw_ostream &) = 0;
  virtual void mangleItaniumThreadLocalWrapper(const VarDecl *D,
                                               raw_ostream &) = 0;

virtual void mangleCXXCtorComdat(const CXXConstructorDecl *D,
                                   raw_ostream &) = 0;
  virtual void mangleCXXDtorComdat(const CXXDestructorDecl *D,
                                   raw_ostream &) = 0;

virtual void mangleLambdaSig(const CXXRecordDecl *Lambda, raw_ostream &) = 0;

virtual void mangleDynamicStermFinalizer(const VarDecl *D, raw_ostream &) = 0;

bool isUniqueNameMangler() { return IsUniqueNameMangler; }

static bool classof(const MangleContext *C) {
    return C->getKind() == MK_Itanium;
  }

static ItaniumMangleContext *create(ASTContext &Context,
                                      DiagnosticsEngine &Diags,
                                      bool IsUniqueNameMangler = false);
};

class MicrosoftMangleContext : public MangleContext {
public:
  explicit MicrosoftMangleContext(ASTContext &C, DiagnosticsEngine &D)
      : MangleContext(C, D, MK_Microsoft) {}

/// Mangle vftable symbols.  Only a subset of the bases along the path
  /// to the vftable are included in the name.  It's up to the caller to pick
  /// them correctly.
  virtual void mangleCXXVFTable(const CXXRecordDecl *Derived,
                                ArrayRef<const CXXRecordDecl *> BasePath,
                                raw_ostream &Out) = 0;

/// Mangle vbtable symbols.  Only a subset of the bases along the path
  /// to the vbtable are included in the name.  It's up to the caller to pick
  /// them correctly.
  virtual void mangleCXXVBTable(const CXXRecordDecl *Derived,
                                ArrayRef<const CXXRecordDecl *> BasePath,
                                raw_ostream &Out) = 0;

virtual void mangleThreadSafeStaticGuardVariable(const VarDecl *VD,
                                                   unsigned GuardNum,
                                                   raw_ostream &Out) = 0;

virtual void mangleVirtualMemPtrThunk(const CXXMethodDecl *MD,
                                        const MethodVFTableLocation &ML,
                                        raw_ostream &Out) = 0;

virtual void mangleCXXVirtualDisplacementMap(const CXXRecordDecl *SrcRD,
                                               const CXXRecordDecl *DstRD,
                                               raw_ostream &Out) = 0;

virtual void mangleCXXThrowInfo(QualType T, bool IsConst, bool IsVolatile,
                                  bool IsUnaligned, uint32_t NumEntries,
                                  raw_ostream &Out) = 0;

virtual void mangleCXXCatchableTypeArray(QualType T, uint32_t NumEntries,
                                           raw_ostream &Out) = 0;

virtual void mangleCXXCatchableType(QualType T, const CXXConstructorDecl *CD,
                                      CXXCtorType CT, uint32_t Size,
                                      uint32_t NVOffset, int32_t VBPtrOffset,
                                      uint32_t VBIndex, raw_ostream &Out) = 0;

virtual void mangleCXXRTTIBaseClassDescriptor(
      const CXXRecordDecl *Derived, uint32_t NVOffset, int32_t VBPtrOffset,
      uint32_t VBTableOffset, uint32_t Flags, raw_ostream &Out) = 0;

virtual void mangleCXXRTTIBaseClassArray(const CXXRecordDecl *Derived,
                                           raw_ostream &Out) = 0;
  virtual void
  mangleCXXRTTIClassHierarchyDescriptor(const CXXRecordDecl *Derived,
                                        raw_ostream &Out) = 0;

virtual void
  mangleCXXRTTICompleteObjectLocator(const CXXRecordDecl *Derived,
                                     ArrayRef<const CXXRecordDecl *> BasePath,
                                     raw_ostream &Out) = 0;

static bool classof(const MangleContext *C) {
    return C->getKind() == MK_Microsoft;
  }

static MicrosoftMangleContext *create(ASTContext &Context,
                                        DiagnosticsEngine &Diags);
};

class ASTNameGenerator {
public:
  explicit ASTNameGenerator(ASTContext &Ctx);
  ~ASTNameGenerator();

/// Writes name for \p D to \p OS.
  /// \returns true on failure, false on success.
  bool writeName(const Decl *D, raw_ostream &OS);

/// \returns name for \p D
  std::string getName(const Decl *D);

/// \returns all applicable mangled names.
  /// For example C++ constructors/destructors can have multiple.
  std::vector<std::string> getAllManglings(const Decl *D);

private:
  class Implementation;
  std::unique_ptr<Implementation> Impl;
};
}

#endif

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