llvm-project/llvm/tools/llvm-pdbutil/FormatUtil.h

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//===- FormatUtil.h ------------------------------------------- *- C++ --*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
#ifndef LLVM_TOOLS_LLVMPDBUTIL_FORMAT_UTIL_H
#define LLVM_TOOLS_LLVMPDBUTIL_FORMAT_UTIL_H
#include "llvm/ADT/ArrayRef.h"
#include "llvm/ADT/StringRef.h"
#include "llvm/Support/Endian.h"
#include "llvm/Support/FormatAdapters.h"
#include "llvm/Support/FormatVariadic.h"
#include <string>
#include <type_traits>
namespace llvm {
namespace pdb {
std::string truncateStringBack(StringRef S, uint32_t MaxLen);
static std::string truncateStringFront(StringRef S, uint32_t MaxLen);
std::string truncateQuotedNameFront(StringRef Label, StringRef Name,
uint32_t MaxLen);
std::string truncateQuotedNameBack(StringRef Label, StringRef Name,
uint32_t MaxLen);
#define PUSH_MASKED_FLAG(Enum, Mask, TheOpt, Value, Text) \
if (Enum::TheOpt == (Value & Mask)) \
Opts.push_back(Text);
#define PUSH_FLAG(Enum, TheOpt, Value, Text) \
PUSH_MASKED_FLAG(Enum, Enum::TheOpt, TheOpt, Value, Text)
#define RETURN_CASE(Enum, X, Ret) \
case Enum::X: \
return Ret;
template <typename T> static std::string formatUnknownEnum(T Value) {
return formatv("unknown ({0})",
static_cast<typename std::underlying_type<T>::type>(Value))
.str();
}
std::string formatSegmentOffset(uint16_t Segment, uint32_t Offset);
std::string typesetItemList(ArrayRef<std::string> Opts, uint32_t IndentLevel,
uint32_t GroupSize, StringRef Sep);
std::string typesetStringList(uint32_t IndentLevel,
ArrayRef<StringRef> Strings);
/// Returns the number of digits in the given integer.
inline int NumDigits(uint64_t N) {
if (N < 10ULL)
return 1;
if (N < 100ULL)
return 2;
if (N < 1000ULL)
return 3;
if (N < 10000ULL)
return 4;
if (N < 100000ULL)
return 5;
if (N < 1000000ULL)
return 6;
if (N < 10000000ULL)
return 7;
if (N < 100000000ULL)
return 8;
if (N < 1000000000ULL)
return 9;
if (N < 10000000000ULL)
return 10;
if (N < 100000000000ULL)
return 11;
if (N < 1000000000000ULL)
return 12;
if (N < 10000000000000ULL)
return 13;
if (N < 100000000000000ULL)
return 14;
if (N < 1000000000000000ULL)
return 15;
if (N < 10000000000000000ULL)
return 16;
if (N < 100000000000000000ULL)
return 17;
if (N < 1000000000000000000ULL)
return 18;
if (N < 10000000000000000000ULL)
return 19;
return 20;
}
namespace detail {
template <typename T>
struct EndianAdapter final
: public FormatAdapter<support::detail::packed_endian_specific_integral<
T, support::little, support::unaligned>> {
using EndianType =
support::detail::packed_endian_specific_integral<T, support::little,
support::unaligned>;
explicit EndianAdapter(EndianType &&Item)
: FormatAdapter<EndianType>(std::move(Item)) {}
void format(llvm::raw_ostream &Stream, StringRef Style) {
format_provider<T>::format(static_cast<T>(this->Item), Stream, Style);
}
};
} // namespace detail
template <typename T>
detail::EndianAdapter<T>
fmtle(support::detail::packed_endian_specific_integral<T, support::little,
support::unaligned>
Value) {
return detail::EndianAdapter<T>(std::move(Value));
}
}
} // namespace llvm
#endif