//===- AnalyzerOptions.cpp - Analysis Engine Options ----------------------===//

//

// 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

//

//===----------------------------------------------------------------------===//

//

// This file contains special accessors for analyzer configuration options

// with string representations.

//

//===----------------------------------------------------------------------===//

#include "clang/StaticAnalyzer/Core/AnalyzerOptions.h"

#include "clang/StaticAnalyzer/Core/Checker.h"

#include "llvm/ADT/SmallString.h"

#include "llvm/ADT/StringSwitch.h"

#include "llvm/ADT/StringRef.h"

#include "llvm/ADT/Twine.h"

#include "llvm/Support/ErrorHandling.h"

#include "llvm/Support/FileSystem.h"

#include "llvm/Support/FormattedStream.h"

#include "llvm/Support/raw_ostream.h"

#include <cassert>

#include <cstddef>

#include <utility>

#include <vector>

using namespace clang;

using namespace ento;

using namespace llvm;

void AnalyzerOptions::printFormattedEntry(

    llvm::raw_ostream &Out,

    std::pair<StringRef, StringRef> EntryDescPair,

    size_t InitialPad, size_t EntryWidth, size_t MinLineWidth) {

  llvm::formatted_raw_ostream FOut(Out);

  const size_t PadForDesc = InitialPad + EntryWidth;

  FOut.PadToColumn(InitialPad) << EntryDescPair.first;

  // If the buffer's length is greater then PadForDesc, print a newline.

  if (FOut.getColumn() > PadForDesc)

    FOut << '\n';

  FOut.PadToColumn(PadForDesc);

  if (MinLineWidth == 0) {

    FOut << EntryDescPair.second;

    return;

  }

  
for (char C : EntryDescPair.second)220
 {

    if (FOut.getColumn() > MinLineWidth && 
C == ' '0
) {

      FOut << '\n';

      FOut.PadToColumn(PadForDesc);

      continue;

    }

    FOut << C;

  }

}

ExplorationStrategyKind

AnalyzerOptions::getExplorationStrategy() const {

  auto K =

    llvm::StringSwitch<llvm::Optional<ExplorationStrategyKind>>(

                                                            ExplorationStrategy)

          .Case("dfs", ExplorationStrategyKind::DFS)

          .Case("bfs", ExplorationStrategyKind::BFS)

          .Case("unexplored_first",

                ExplorationStrategyKind::UnexploredFirst)

          .Case("unexplored_first_queue",

                ExplorationStrategyKind::UnexploredFirstQueue)

          .Case("unexplored_first_location_queue",

                ExplorationStrategyKind::UnexploredFirstLocationQueue)

          .Case("bfs_block_dfs_contents",

                ExplorationStrategyKind::BFSBlockDFSContents)

          .Default(None);

  assert(K.hasValue() && "User mode is invalid.");

  return K.getValue();

}

IPAKind AnalyzerOptions::getIPAMode() const {

  auto K = llvm::StringSwitch<llvm::Optional<IPAKind>>(IPAMode)

          .Case("none", IPAK_None)

          .Case("basic-inlining", IPAK_BasicInlining)

          .Case("inlining", IPAK_Inlining)

          .Case("dynamic", IPAK_DynamicDispatch)

          .Case("dynamic-bifurcate", IPAK_DynamicDispatchBifurcate)

          .Default(None);

  assert(K.hasValue() && "IPA Mode is invalid.");

  return K.getValue();

}

bool

AnalyzerOptions::mayInlineCXXMemberFunction(

                                          CXXInlineableMemberKind Param) const {

  if (getIPAMode() < IPAK_Inlining)

    return false;

  auto K =

    llvm::StringSwitch<llvm::Optional<CXXInlineableMemberKind>>(

                                                          CXXMemberInliningMode)

    .Case("constructors", CIMK_Constructors)

    .Case("destructors", CIMK_Destructors)

    .Case("methods", CIMK_MemberFunctions)

    .Case("none", CIMK_None)

    .Default(None);

  assert(K.hasValue() && "Invalid c++ member function inlining mode.");

  return *K >= Param;

}

StringRef AnalyzerOptions::getCheckerStringOption(StringRef CheckerName,

                                                  StringRef OptionName,

                                                  bool SearchInParents) const {

  assert(!CheckerName.empty() &&

         "Empty checker name! Make sure the checker object (including it's "

         "bases!) if fully initialized before calling this function!");

  ConfigTable::const_iterator E = Config.end();

  do {

    ConfigTable::const_iterator I =

        Config.find((Twine(CheckerName) + ":" + OptionName).str());

    if (I != E)

      return StringRef(I->getValue());

    size_t Pos = CheckerName.rfind('.');

    if (Pos == StringRef::npos)

      break;

    CheckerName = CheckerName.substr(0, Pos);

  } while (!CheckerName.empty() && SearchInParents);

  
llvm_unreachable0
("Unknown checker option! Did you call getChecker*Option "

                   "with incorrect parameters? User input must've been "

                   "verified by CheckerRegistry.");

  
return ""0
;

}

StringRef AnalyzerOptions::getCheckerStringOption(const ento::CheckerBase *C,

                                                  StringRef OptionName,

                                                  bool SearchInParents) const {

  return getCheckerStringOption(

                           C->getTagDescription(), OptionName, SearchInParents);

}

bool AnalyzerOptions::getCheckerBooleanOption(StringRef CheckerName,

                                              StringRef OptionName,

                                              bool SearchInParents) const {

  auto Ret = llvm::StringSwitch<llvm::Optional<bool>>(

      getCheckerStringOption(CheckerName, OptionName,

                             SearchInParents))

      .Case("true", true)

      .Case("false", false)

      .Default(None);

  assert(Ret &&

         "This option should be either 'true' or 'false', and should've been "

         "validated by CheckerRegistry!");

  return *Ret;

}

bool AnalyzerOptions::getCheckerBooleanOption(const ento::CheckerBase *C,

                                              StringRef OptionName,

                                              bool SearchInParents) const {

  return getCheckerBooleanOption(

             C->getTagDescription(), OptionName, SearchInParents);

}

int AnalyzerOptions::getCheckerIntegerOption(StringRef CheckerName,

                                             StringRef OptionName,

                                             bool SearchInParents) const {

  int Ret = 0;

  bool HasFailed = getCheckerStringOption(CheckerName, OptionName,

                                          SearchInParents)

                     .getAsInteger(0, Ret);

  assert(!HasFailed &&

         "This option should be numeric, and should've been validated by "

         "CheckerRegistry!");

  (void)HasFailed;

  return Ret;

}

int AnalyzerOptions::getCheckerIntegerOption(const ento::CheckerBase *C,

                                             StringRef OptionName,

                                             bool SearchInParents) const {

  return getCheckerIntegerOption(

                           C->getTagDescription(), OptionName, SearchInParents);

}