| //===- FormatUtil.cpp ----------------------------------------- *- C++ --*-===// |
| // |
| // The LLVM Compiler Infrastructure |
| // |
| // This file is distributed under the University of Illinois Open Source |
| // License. See LICENSE.TXT for details. |
| // |
| //===----------------------------------------------------------------------===// |
| |
| #include "FormatUtil.h" |
| #include "llvm/ADT/STLExtras.h" |
| #include "llvm/ADT/StringExtras.h" |
| #include "llvm/Support/FormatAdapters.h" |
| #include "llvm/Support/FormatVariadic.h" |
| |
| using namespace llvm; |
| using namespace llvm::pdb; |
| |
| std::string llvm::pdb::truncateStringBack(StringRef S, uint32_t MaxLen) { |
| if (MaxLen == 0 || S.size() <= MaxLen || S.size() <= 3) |
| return S; |
| |
| assert(MaxLen >= 3); |
| uint32_t FinalLen = std::min<size_t>(S.size(), MaxLen - 3); |
| S = S.take_front(FinalLen); |
| return std::string(S) + std::string("..."); |
| } |
| |
| std::string llvm::pdb::truncateStringMiddle(StringRef S, uint32_t MaxLen) { |
| if (MaxLen == 0 || S.size() <= MaxLen || S.size() <= 3) |
| return S; |
| |
| assert(MaxLen >= 3); |
| uint32_t FinalLen = std::min<size_t>(S.size(), MaxLen - 3); |
| StringRef Front = S.take_front(FinalLen / 2); |
| StringRef Back = S.take_back(Front.size()); |
| return std::string(Front) + std::string("...") + std::string(Back); |
| } |
| |
| std::string llvm::pdb::truncateStringFront(StringRef S, uint32_t MaxLen) { |
| if (MaxLen == 0 || S.size() <= MaxLen || S.size() <= 3) |
| return S; |
| |
| assert(MaxLen >= 3); |
| S = S.take_back(MaxLen - 3); |
| return std::string("...") + std::string(S); |
| } |
| |
| std::string llvm::pdb::truncateQuotedNameFront(StringRef Label, StringRef Name, |
| uint32_t MaxLen) { |
| uint32_t RequiredExtraChars = Label.size() + 1 + 2; |
| if (MaxLen == 0 || RequiredExtraChars + Name.size() <= MaxLen) |
| return formatv("{0} \"{1}\"", Label, Name).str(); |
| |
| assert(MaxLen >= RequiredExtraChars); |
| std::string TN = truncateStringFront(Name, MaxLen - RequiredExtraChars); |
| return formatv("{0} \"{1}\"", Label, TN).str(); |
| } |
| |
| std::string llvm::pdb::truncateQuotedNameBack(StringRef Label, StringRef Name, |
| uint32_t MaxLen) { |
| uint32_t RequiredExtraChars = Label.size() + 1 + 2; |
| if (MaxLen == 0 || RequiredExtraChars + Name.size() <= MaxLen) |
| return formatv("{0} \"{1}\"", Label, Name).str(); |
| |
| assert(MaxLen >= RequiredExtraChars); |
| std::string TN = truncateStringBack(Name, MaxLen - RequiredExtraChars); |
| return formatv("{0} \"{1}\"", Label, TN).str(); |
| } |
| |
| std::string llvm::pdb::typesetItemList(ArrayRef<std::string> Opts, |
| uint32_t IndentLevel, uint32_t GroupSize, |
| StringRef Sep) { |
| std::string Result; |
| while (!Opts.empty()) { |
| ArrayRef<std::string> ThisGroup; |
| ThisGroup = Opts.take_front(GroupSize); |
| Opts = Opts.drop_front(ThisGroup.size()); |
| Result += join(ThisGroup, Sep); |
| if (!Opts.empty()) { |
| Result += Sep; |
| Result += "\n"; |
| Result += formatv("{0}", fmt_repeat(' ', IndentLevel)); |
| } |
| } |
| return Result; |
| } |
| |
| std::string llvm::pdb::typesetStringList(uint32_t IndentLevel, |
| ArrayRef<StringRef> Strings) { |
| std::string Result = "["; |
| for (const auto &S : Strings) { |
| Result += formatv("\n{0}{1}", fmt_repeat(' ', IndentLevel), S); |
| } |
| Result += "]"; |
| return Result; |
| } |
| |
| std::string llvm::pdb::formatSegmentOffset(uint16_t Segment, uint32_t Offset) { |
| return formatv("{0:4}:{1:4}", Segment, Offset); |
| } |