116 lines · cpp
1//===- PrettyClassDefinitionDumper.cpp --------------------------*- C++ -*-===//2//3// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.4// See https://llvm.org/LICENSE.txt for license information.5// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception6//7//===----------------------------------------------------------------------===//8 9#include "PrettyClassDefinitionDumper.h"10 11#include "PrettyClassLayoutGraphicalDumper.h"12#include "llvm-pdbutil.h"13 14#include "llvm/ADT/APFloat.h"15#include "llvm/ADT/SmallString.h"16#include "llvm/DebugInfo/PDB/IPDBLineNumber.h"17#include "llvm/DebugInfo/PDB/PDBSymbolTypeBaseClass.h"18#include "llvm/DebugInfo/PDB/PDBSymbolTypeFunctionSig.h"19#include "llvm/DebugInfo/PDB/PDBSymbolTypeUDT.h"20#include "llvm/DebugInfo/PDB/UDTLayout.h"21 22#include "llvm/Support/Format.h"23 24using namespace llvm;25using namespace llvm::pdb;26 27ClassDefinitionDumper::ClassDefinitionDumper(LinePrinter &P)28 : PDBSymDumper(true), Printer(P) {}29 30void ClassDefinitionDumper::start(const PDBSymbolTypeUDT &Class) {31 assert(opts::pretty::ClassFormat !=32 opts::pretty::ClassDefinitionFormat::None);33 34 ClassLayout Layout(Class);35 start(Layout);36}37 38void ClassDefinitionDumper::start(const ClassLayout &Layout) {39 prettyPrintClassIntro(Layout);40 41 PrettyClassLayoutGraphicalDumper Dumper(Printer, 1, 0);42 DumpedAnything |= Dumper.start(Layout);43 44 prettyPrintClassOutro(Layout);45}46 47void ClassDefinitionDumper::prettyPrintClassIntro(const ClassLayout &Layout) {48 DumpedAnything = false;49 Printer.NewLine();50 51 uint32_t Size = Layout.getSize();52 const PDBSymbolTypeUDT &Class = Layout.getClass();53 54 if (Layout.getClass().isConstType())55 WithColor(Printer, PDB_ColorItem::Keyword).get() << "const ";56 if (Layout.getClass().isVolatileType())57 WithColor(Printer, PDB_ColorItem::Keyword).get() << "volatile ";58 if (Layout.getClass().isUnalignedType())59 WithColor(Printer, PDB_ColorItem::Keyword).get() << "unaligned ";60 61 WithColor(Printer, PDB_ColorItem::Keyword).get() << Class.getUdtKind() << " ";62 WithColor(Printer, PDB_ColorItem::Type).get() << Class.getName();63 WithColor(Printer, PDB_ColorItem::Comment).get() << " [sizeof = " << Size64 << "]";65 uint32_t BaseCount = Layout.bases().size();66 if (BaseCount > 0) {67 Printer.Indent();68 char NextSeparator = ':';69 for (auto *BC : Layout.bases()) {70 const auto &Base = BC->getBase();71 if (Base.isIndirectVirtualBaseClass())72 continue;73 74 Printer.NewLine();75 Printer << NextSeparator << " ";76 WithColor(Printer, PDB_ColorItem::Keyword).get() << Base.getAccess();77 if (BC->isVirtualBase())78 WithColor(Printer, PDB_ColorItem::Keyword).get() << " virtual";79 80 WithColor(Printer, PDB_ColorItem::Type).get() << " " << Base.getName();81 NextSeparator = ',';82 }83 84 Printer.Unindent();85 }86 87 Printer << " {";88 Printer.Indent();89}90 91void ClassDefinitionDumper::prettyPrintClassOutro(const ClassLayout &Layout) {92 Printer.Unindent();93 if (DumpedAnything)94 Printer.NewLine();95 Printer << "}";96 Printer.NewLine();97 if (Layout.deepPaddingSize() > 0) {98 APFloat Pct(100.0 * (double)Layout.deepPaddingSize() /99 (double)Layout.getSize());100 SmallString<8> PctStr;101 Pct.toString(PctStr, 4);102 WithColor(Printer, PDB_ColorItem::Padding).get()103 << "Total padding " << Layout.deepPaddingSize() << " bytes (" << PctStr104 << "% of class size)";105 Printer.NewLine();106 APFloat Pct2(100.0 * (double)Layout.immediatePadding() /107 (double)Layout.getSize());108 PctStr.clear();109 Pct2.toString(PctStr, 4);110 WithColor(Printer, PDB_ColorItem::Padding).get()111 << "Immediate padding " << Layout.immediatePadding() << " bytes ("112 << PctStr << "% of class size)";113 Printer.NewLine();114 }115}116