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 ";
  31   uint32_t TargetId = Symbol.getTypeId();
  32   if (auto TypeSymbol = Symbol.getSession().getSymbolById(TargetId))
  33     TypeSymbol->dump(OS, 0, *this);
  34   OS << " " << Symbol.getName();
  35 }
  36
  37 void TypedefDumper::dump(const PDBSymbolTypeArray &Symbol, raw_ostream &OS,
  38                          int Indent) {}
  39
  40 void TypedefDumper::dump(const PDBSymbolTypeBuiltin &Symbol, raw_ostream &OS,
  41                          int Indent) {
  42   PDB_BuiltinType Type = Symbol.getBuiltinType();
  43   OS << Type;
  44   if (Type == PDB_BuiltinType::UInt || Type == PDB_BuiltinType::Int)
  45     OS << (8 * Symbol.getLength()) << "_t";
  46 }
  47
  48 void TypedefDumper::dump(const PDBSymbolTypeEnum &Symbol, raw_ostream &OS,
  49                          int Indent) {
  50   OS << "enum " << Symbol.getName();
  51 }
  52
  53 void TypedefDumper::dump(const PDBSymbolTypePointer &Symbol, raw_ostream &OS,
  54                          int Indent) {
  55   if (Symbol.isConstType())
  56     OS << "const ";
  57   if (Symbol.isVolatileType())
  58     OS << "volatile ";
  59   uint32_t PointeeId = Symbol.getTypeId();
  60   auto PointeeType = Symbol.getSession().getSymbolById(PointeeId);
  61   if (!PointeeType)
  62     return;
  63   if (auto FuncSig = dyn_cast<PDBSymbolTypeFunctionSig>(PointeeType.get())) {
  64     FunctionDumper::PointerType Pointer = FunctionDumper::PointerType::Pointer;
  65     if (Symbol.isReference())
  66       Pointer = FunctionDumper::PointerType::Reference;
  67     FunctionDumper NestedDumper;
  68     NestedDumper.start(*FuncSig, Pointer, OS);
  69     OS.flush();
  70   } else {
  71     PointeeType->dump(OS, Indent, *this);
  72     OS << ((Symbol.isReference()) ? "&" : "*");
  73   }
  74 }
  75
  76 void TypedefDumper::dump(const PDBSymbolTypeFunctionSig &Symbol,
  77                          raw_ostream &OS, int Indent) {
  78   FunctionDumper Dumper;
  79   Dumper.start(Symbol, FunctionDumper::PointerType::None, OS);
  80 }
  81
  82 void TypedefDumper::dump(const PDBSymbolTypeUDT &Symbol, raw_ostream &OS,
  83                          int Indent) {
  84   OS << "class " << Symbol.getName();
  85 }