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llvm-mirror/tools/llvm-pdbutil/PrettyClassDefinitionDumper.cpp
Chandler Carruth ae65e281f3 Update the file headers across all of the LLVM projects in the monorepo
to reflect the new license.

We understand that people may be surprised that we're moving the header
entirely to discuss the new license. We checked this carefully with the
Foundation's lawyer and we believe this is the correct approach.

Essentially, all code in the project is now made available by the LLVM
project under our new license, so you will see that the license headers
include that license only. Some of our contributors have contributed
code under our old license, and accordingly, we have retained a copy of
our old license notice in the top-level files in each project and
repository.

llvm-svn: 351636
2019-01-19 08:50:56 +00:00

115 lines
3.7 KiB
C++

//===- PrettyClassDefinitionDumper.cpp --------------------------*- 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
//
//===----------------------------------------------------------------------===//
#include "PrettyClassDefinitionDumper.h"
#include "LinePrinter.h"
#include "PrettyClassLayoutGraphicalDumper.h"
#include "llvm-pdbutil.h"
#include "llvm/ADT/APFloat.h"
#include "llvm/ADT/SmallString.h"
#include "llvm/DebugInfo/PDB/PDBSymbolTypeBaseClass.h"
#include "llvm/DebugInfo/PDB/PDBSymbolTypeUDT.h"
#include "llvm/DebugInfo/PDB/UDTLayout.h"
#include "llvm/Support/Format.h"
using namespace llvm;
using namespace llvm::pdb;
ClassDefinitionDumper::ClassDefinitionDumper(LinePrinter &P)
: PDBSymDumper(true), Printer(P) {}
void ClassDefinitionDumper::start(const PDBSymbolTypeUDT &Class) {
assert(opts::pretty::ClassFormat !=
opts::pretty::ClassDefinitionFormat::None);
ClassLayout Layout(Class);
start(Layout);
}
void ClassDefinitionDumper::start(const ClassLayout &Layout) {
prettyPrintClassIntro(Layout);
PrettyClassLayoutGraphicalDumper Dumper(Printer, 1, 0);
DumpedAnything |= Dumper.start(Layout);
prettyPrintClassOutro(Layout);
}
void ClassDefinitionDumper::prettyPrintClassIntro(const ClassLayout &Layout) {
DumpedAnything = false;
Printer.NewLine();
uint32_t Size = Layout.getSize();
const PDBSymbolTypeUDT &Class = Layout.getClass();
if (Layout.getClass().isConstType())
WithColor(Printer, PDB_ColorItem::Keyword).get() << "const ";
if (Layout.getClass().isVolatileType())
WithColor(Printer, PDB_ColorItem::Keyword).get() << "volatile ";
if (Layout.getClass().isUnalignedType())
WithColor(Printer, PDB_ColorItem::Keyword).get() << "unaligned ";
WithColor(Printer, PDB_ColorItem::Keyword).get() << Class.getUdtKind() << " ";
WithColor(Printer, PDB_ColorItem::Type).get() << Class.getName();
WithColor(Printer, PDB_ColorItem::Comment).get() << " [sizeof = " << Size
<< "]";
uint32_t BaseCount = Layout.bases().size();
if (BaseCount > 0) {
Printer.Indent();
char NextSeparator = ':';
for (auto BC : Layout.bases()) {
const auto &Base = BC->getBase();
if (Base.isIndirectVirtualBaseClass())
continue;
Printer.NewLine();
Printer << NextSeparator << " ";
WithColor(Printer, PDB_ColorItem::Keyword).get() << Base.getAccess();
if (BC->isVirtualBase())
WithColor(Printer, PDB_ColorItem::Keyword).get() << " virtual";
WithColor(Printer, PDB_ColorItem::Type).get() << " " << Base.getName();
NextSeparator = ',';
}
Printer.Unindent();
}
Printer << " {";
Printer.Indent();
}
void ClassDefinitionDumper::prettyPrintClassOutro(const ClassLayout &Layout) {
Printer.Unindent();
if (DumpedAnything)
Printer.NewLine();
Printer << "}";
Printer.NewLine();
if (Layout.deepPaddingSize() > 0) {
APFloat Pct(100.0 * (double)Layout.deepPaddingSize() /
(double)Layout.getSize());
SmallString<8> PctStr;
Pct.toString(PctStr, 4);
WithColor(Printer, PDB_ColorItem::Padding).get()
<< "Total padding " << Layout.deepPaddingSize() << " bytes (" << PctStr
<< "% of class size)";
Printer.NewLine();
APFloat Pct2(100.0 * (double)Layout.immediatePadding() /
(double)Layout.getSize());
PctStr.clear();
Pct2.toString(PctStr, 4);
WithColor(Printer, PDB_ColorItem::Padding).get()
<< "Immediate padding " << Layout.immediatePadding() << " bytes ("
<< PctStr << "% of class size)";
Printer.NewLine();
}
}