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//===- AnalyzerOptions.cpp - Analysis Engine Options ----------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// 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/raw_ostream.h"
#include <cassert>
#include <cstddef>
#include <utility>
#include <vector>
using namespace clang;
using namespace ento;
using namespace llvm;
std::vector<StringRef>
AnalyzerOptions::getRegisteredCheckers(bool IncludeExperimental /* = false */) {
static const StringRef StaticAnalyzerChecks[] = {
#define GET_CHECKERS
#define CHECKER(FULLNAME, CLASS, DESCFILE, HELPTEXT, GROUPINDEX, HIDDEN) \
FULLNAME,
#include "clang/StaticAnalyzer/Checkers/Checkers.inc"
#undef CHECKER
#undef GET_CHECKERS
};
std::vector<StringRef> Result;
for (StringRef CheckName : StaticAnalyzerChecks) {
if (!CheckName.startswith("debug.") &&
(IncludeExperimental || !CheckName.startswith("alpha.")))
Result.push_back(CheckName);
}
return Result;
}
UserModeKind AnalyzerOptions::getUserMode() {
if (!UserMode.hasValue()) {
UserMode = getStringOption("mode", "deep");
}
auto K = llvm::StringSwitch<llvm::Optional<UserModeKind>>(*UserMode)
.Case("shallow", UMK_Shallow)
.Case("deep", UMK_Deep)
.Default(None);
assert(UserMode.hasValue() && "User mode is invalid.");
return K.getValue();
}
ExplorationStrategyKind
AnalyzerOptions::getExplorationStrategy() {
if (!ExplorationStrategy.hasValue()) {
ExplorationStrategy = getStringOption("exploration_strategy",
"unexplored_first_queue");
}
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() {
if (!IPAMode.hasValue()) {
switch (getUserMode()) {
case UMK_Shallow:
IPAMode = getStringOption("ipa", "inlining");
break;
case UMK_Deep:
IPAMode = getStringOption("ipa", "dynamic-bifurcate");
break;
}
}
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) {
if (!CXXMemberInliningMode.hasValue()) {
CXXMemberInliningMode = getStringOption("c++-inlining", "destructors");
}
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::getStringOption(StringRef OptionName,
StringRef DefaultVal) {
return Config.insert({OptionName, DefaultVal}).first->second;
}
static StringRef toString(bool B) { return (B ? "true" : "false"); }
template <typename T>
static StringRef toString(T) = delete;
void AnalyzerOptions::initOption(Optional<StringRef> &V, StringRef Name,
StringRef DefaultVal) {
if (V.hasValue())
return;
V = getStringOption(Name, DefaultVal);
}
void AnalyzerOptions::initOption(Optional<bool> &V, StringRef Name,
bool DefaultVal) {
if (V.hasValue())
return;
// FIXME: We should emit a warning here if the value is something other than
// "true", "false", or the empty string (meaning the default value),
// but the AnalyzerOptions doesn't have access to a diagnostic engine.
V = llvm::StringSwitch<bool>(getStringOption(Name, toString(DefaultVal)))
.Case("true", true)
.Case("false", false)
.Default(DefaultVal);
}
void AnalyzerOptions::initOption(Optional<unsigned> &V, StringRef Name,
unsigned DefaultVal) {
if (V.hasValue())
return;
V = DefaultVal;
bool HasFailed = getStringOption(Name, std::to_string(DefaultVal))
.getAsInteger(10, *V);
assert(!HasFailed && "analyzer-config option should be numeric");
(void)HasFailed;
}
StringRef AnalyzerOptions::getCheckerStringOption(StringRef OptionName,
StringRef DefaultVal,
const CheckerBase *C,
bool SearchInParents) const {
assert(C);
// Search for a package option if the option for the checker is not specified
// and search in parents is enabled.
StringRef CheckerName = C->getTagDescription();
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)
return DefaultVal;
CheckerName = CheckerName.substr(0, Pos);
} while (!CheckerName.empty() && SearchInParents);
return DefaultVal;
}
bool AnalyzerOptions::getCheckerBooleanOption(StringRef Name, bool DefaultVal,
const CheckerBase *C,
bool SearchInParents) const {
// FIXME: We should emit a warning here if the value is something other than
// "true", "false", or the empty string (meaning the default value),
// but the AnalyzerOptions doesn't have access to a diagnostic engine.
assert(C);
return llvm::StringSwitch<bool>(
getCheckerStringOption(Name, toString(DefaultVal), C, SearchInParents))
.Case("true", true)
.Case("false", false)
.Default(DefaultVal);
}
int AnalyzerOptions::getCheckerIntegerOption(StringRef Name, int DefaultVal,
const CheckerBase *C,
bool SearchInParents) const {
int Ret = DefaultVal;
bool HasFailed = getCheckerStringOption(Name, std::to_string(DefaultVal), C,
SearchInParents)
.getAsInteger(10, Ret);
assert(!HasFailed && "analyzer-config option should be numeric");
(void)HasFailed;
return Ret;
}
StringRef AnalyzerOptions::getCTUDir() {
if (!CTUDir.hasValue()) {
CTUDir = getStringOption("ctu-dir", "");
if (!llvm::sys::fs::is_directory(*CTUDir))
CTUDir = "";
}
return CTUDir.getValue();
}
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