contrib/llvm/tools/llvm-pdbdump/CompactTypeDumpVisitor.cpp

   1 //===-- CompactTypeDumpVisitor.cpp - CodeView type info dumper --*- 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 "CompactTypeDumpVisitor.h"
  11 #include "llvm/DebugInfo/CodeView/TypeDatabase.h"
  12 #include "llvm/Support/FormatVariadic.h"
  13 #include "llvm/Support/ScopedPrinter.h"
  14
  15 using namespace llvm;
  16 using namespace llvm::codeview;
  17 using namespace llvm::pdb;
  18
  19 static const EnumEntry<TypeLeafKind> LeafTypeNames[] = {
  20 #define CV_TYPE(enum, val) {#enum, enum},
  21 #include "llvm/DebugInfo/CodeView/CodeViewTypes.def"
  22 };
  23
  24 static StringRef getLeafName(TypeLeafKind K) {
  25   for (const auto &E : LeafTypeNames) {
  26     if (E.Value == K)
  27       return E.Name;
  28   }
  29   return StringRef();
  30 }
  31
  32 CompactTypeDumpVisitor::CompactTypeDumpVisitor(TypeCollection &Types,
  33                                                ScopedPrinter *W)
  34     : CompactTypeDumpVisitor(Types, TypeIndex(TypeIndex::FirstNonSimpleIndex),
  35                              W) {}
  36
  37 CompactTypeDumpVisitor::CompactTypeDumpVisitor(TypeCollection &Types,
  38                                                TypeIndex FirstTI,
  39                                                ScopedPrinter *W)
  40     : W(W), TI(FirstTI), Offset(0), Types(Types) {}
  41
  42 Error CompactTypeDumpVisitor::visitTypeBegin(CVType &Record) {
  43   return Error::success();
  44 }
  45
  46 Error CompactTypeDumpVisitor::visitTypeEnd(CVType &Record) {
  47   uint32_t I = TI.getIndex();
  48   StringRef Leaf = getLeafName(Record.Type);
  49   StringRef Name = Types.getTypeName(TI);
  50   W->printString(
  51       llvm::formatv("Index: {0:x} ({1:N} bytes, offset {2:N}) {3} \"{4}\"", I,
  52                     Record.length(), Offset, Leaf, Name)
  53           .str());
  54
  55   Offset += Record.length();
  56   TI.setIndex(TI.getIndex() + 1);
  57
  58   return Error::success();
  59 }