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//===- 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 <optional>
#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 than 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) {
if (FOut.getColumn() > MinLineWidth && C == ' ') {
FOut << '\n';
FOut.PadToColumn(PadForDesc);
continue;
}
FOut << C;
}
}
ExplorationStrategyKind
AnalyzerOptions::getExplorationStrategy() const {
auto K =
llvm::StringSwitch<std::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(std::nullopt);
assert(K && "User mode is invalid.");
return *K;
}
CTUPhase1InliningKind AnalyzerOptions::getCTUPhase1Inlining() const {
auto K = llvm::StringSwitch<std::optional<CTUPhase1InliningKind>>(
CTUPhase1InliningMode)
.Case("none", CTUPhase1InliningKind::None)
.Case("small", CTUPhase1InliningKind::Small)
.Case("all", CTUPhase1InliningKind::All)
.Default(std::nullopt);
assert(K && "CTU inlining mode is invalid.");
return *K;
}
IPAKind AnalyzerOptions::getIPAMode() const {
auto K = llvm::StringSwitch<std::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(std::nullopt);
assert(K && "IPA Mode is invalid.");
return *K;
}
bool
AnalyzerOptions::mayInlineCXXMemberFunction(
CXXInlineableMemberKind Param) const {
if (getIPAMode() < IPAK_Inlining)
return false;
auto K = llvm::StringSwitch<std::optional<CXXInlineableMemberKind>>(
CXXMemberInliningMode)
.Case("constructors", CIMK_Constructors)
.Case("destructors", CIMK_Destructors)
.Case("methods", CIMK_MemberFunctions)
.Case("none", CIMK_None)
.Default(std::nullopt);
assert(K && "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_unreachable("Unknown checker option! Did you call getChecker*Option "
"with incorrect parameters? User input must've been "
"verified by CheckerRegistry.");
return "";
}
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<std::optional<bool>>(
getCheckerStringOption(CheckerName, OptionName, SearchInParents))
.Case("true", true)
.Case("false", false)
.Default(std::nullopt);
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);
}
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