tools/llvm-pdbdump/TypedefDumper.cpp

   1 //===- TypedefDumper.cpp - PDBSymDumper impl for typedefs -------- * 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 "TypedefDumper.h"
  11
  12 #include "FunctionDumper.h"
  13 #include "llvm-pdbdump.h"
  14
  15 #include "llvm/DebugInfo/PDB/IPDBSession.h"
  16 #include "llvm/DebugInfo/PDB/PDBExtras.h"
  17 #include "llvm/DebugInfo/PDB/PDBSymbolTypeBuiltin.h"
  18 #include "llvm/DebugInfo/PDB/PDBSymbolTypeEnum.h"
  19 #include "llvm/DebugInfo/PDB/PDBSymbolTypeFunctionSig.h"
  20 #include "llvm/DebugInfo/PDB/PDBSymbolTypePointer.h"
  21 #include "llvm/DebugInfo/PDB/PDBSymbolTypeTypedef.h"
  22 #include "llvm/DebugInfo/PDB/PDBSymbolTypeUDT.h"
  23
  24 using namespace llvm;
  25
  26 TypedefDumper::TypedefDumper() : PDBSymDumper(true) {}
  27
  28 void TypedefDumper::start(const PDBSymbolTypeTypedef &Symbol, raw_ostream &OS,
  29                           int Indent) {
  30   OS << "typedef:" << Symbol.getName() << " -> ";
  31   uint32_t TargetId = Symbol.getTypeId();
  32   if (auto TypeSymbol = Symbol.getSession().getSymbolById(TargetId))
  33     TypeSymbol->dump(OS, 0, *this);
  34 }
  35
  36 void TypedefDumper::dump(const PDBSymbolTypeArray &Symbol, raw_ostream &OS,
  37                          int Indent) {}
  38
  39 void TypedefDumper::dump(const PDBSymbolTypeBuiltin &Symbol, raw_ostream &OS,
  40                          int Indent) {
  41   PDB_BuiltinType Type = Symbol.getBuiltinType();
  42   OS << Type;
  43   if (Type == PDB_BuiltinType::UInt || Type == PDB_BuiltinType::Int)
  44     OS << (8 * Symbol.getLength()) << "_t";
  45 }
  46
  47 void TypedefDumper::dump(const PDBSymbolTypeEnum &Symbol, raw_ostream &OS,
  48                          int Indent) {
  49   OS << "enum " << Symbol.getName();
  50 }
  51
  52 void TypedefDumper::dump(const PDBSymbolTypePointer &Symbol, raw_ostream &OS,
  53                          int Indent) {
  54   if (Symbol.isConstType())
  55     OS << "const ";
  56   if (Symbol.isVolatileType())
  57     OS << "volatile ";
  58   uint32_t PointeeId = Symbol.getTypeId();
  59   auto PointeeType = Symbol.getSession().getSymbolById(PointeeId);
  60   if (!PointeeType)
  61     return;
  62   if (auto FuncSig = dyn_cast<PDBSymbolTypeFunctionSig>(PointeeType.get())) {
  63     FunctionDumper::PointerType Pointer = FunctionDumper::PointerType::Pointer;
  64     if (Symbol.isReference())
  65       Pointer = FunctionDumper::PointerType::Reference;
  66     FunctionDumper NestedDumper;
  67     NestedDumper.start(*FuncSig, Pointer, OS);
  68     OS.flush();
  69   } else {
  70     PointeeType->dump(OS, Indent, *this);
  71     OS << ((Symbol.isReference()) ? "&" : "*");
  72   }
  73 }
  74
  75 void TypedefDumper::dump(const PDBSymbolTypeFunctionSig &Symbol,
  76                          raw_ostream &OS, int Indent) {
  77   FunctionDumper Dumper;
  78   Dumper.start(Symbol, FunctionDumper::PointerType::None, OS);
  79 }
  80
  81 void TypedefDumper::dump(const PDBSymbolTypeUDT &Symbol, raw_ostream &OS,
  82                          int Indent) {
  83   OS << "class " << Symbol.getName();
  84 }