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//===- 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);
}
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