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//===-- AnalyzerOptions.cpp - Analysis Engine Options -----------*- C++ -*-===//
//
// 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 "llvm/ADT/StringSwitch.h"
#include "llvm/ADT/SmallString.h"
#include "llvm/Support/raw_ostream.h"
using namespace clang;
using namespace llvm;
bool
AnalyzerOptions::mayInlineCXXMemberFunction(CXXInlineableMemberKind K) {
if (IPAMode < Inlining)
return false;
if (!CXXMemberInliningMode) {
static const char *ModeKey = "c++-inlining";
StringRef ModeStr(Config.GetOrCreateValue(ModeKey,
"methods").getValue());
CXXInlineableMemberKind &MutableMode =
const_cast<CXXInlineableMemberKind &>(CXXMemberInliningMode);
MutableMode = llvm::StringSwitch<CXXInlineableMemberKind>(ModeStr)
.Case("constructors", CIMK_Constructors)
.Case("destructors", CIMK_Destructors)
.Case("none", CIMK_None)
.Case("methods", CIMK_MemberFunctions)
.Default(CXXInlineableMemberKind());
if (!MutableMode) {
// FIXME: We should emit a warning here about an unknown inlining kind,
// but the AnalyzerOptions doesn't have access to a diagnostic engine.
MutableMode = CIMK_None;
}
}
return CXXMemberInliningMode >= K;
}
static StringRef toString(bool b) { return b ? "true" : "false"; }
bool AnalyzerOptions::getBooleanOption(StringRef Name, bool DefaultVal) {
// 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.
StringRef V(Config.GetOrCreateValue(Name, toString(DefaultVal)).getValue());
return llvm::StringSwitch<bool>(V)
.Case("true", true)
.Case("false", false)
.Default(DefaultVal);
}
bool AnalyzerOptions::getBooleanOption(llvm::Optional<bool> &V,
StringRef Name,
bool DefaultVal) {
if (!V.hasValue())
V = getBooleanOption(Name, DefaultVal);
return V.getValue();
}
bool AnalyzerOptions::includeTemporaryDtorsInCFG() {
return getBooleanOption(IncludeTemporaryDtorsInCFG,
"cfg-temporary-dtors",
/* Default = */ false);
}
bool AnalyzerOptions::mayInlineCXXStandardLibrary() {
return getBooleanOption(InlineCXXStandardLibrary,
"c++-stdlib-inlining",
/*Default=*/true);
}
bool AnalyzerOptions::mayInlineTemplateFunctions() {
return getBooleanOption(InlineTemplateFunctions,
"c++-template-inlining",
/*Default=*/true);
}
bool AnalyzerOptions::mayInlineObjCMethod() {
return getBooleanOption(ObjCInliningMode,
"objc-inlining",
/* Default = */ true);
}
bool AnalyzerOptions::shouldPruneNullReturnPaths() {
return getBooleanOption(PruneNullReturnPaths,
"suppress-null-return-paths",
/* Default = */ true);
}
bool AnalyzerOptions::shouldAvoidSuppressingNullArgumentPaths() {
return getBooleanOption(AvoidSuppressingNullArgumentPaths,
"avoid-suppressing-null-argument-paths",
/* Default = */ false);
}
int AnalyzerOptions::getOptionAsInteger(StringRef Name, int DefaultVal) {
llvm::SmallString<10> StrBuf;
llvm::raw_svector_ostream OS(StrBuf);
OS << DefaultVal;
StringRef V(Config.GetOrCreateValue(Name, OS.str()).getValue());
int Res = DefaultVal;
bool b = V.getAsInteger(10, Res);
assert(!b && "analyzer-config option should be numeric");
(void) b;
return Res;
}
unsigned AnalyzerOptions::getAlwaysInlineSize() {
if (!AlwaysInlineSize.hasValue())
AlwaysInlineSize = getOptionAsInteger("ipa-always-inline-size", 3);
return AlwaysInlineSize.getValue();
}
unsigned AnalyzerOptions::getGraphTrimInterval() {
if (!GraphTrimInterval.hasValue())
GraphTrimInterval = getOptionAsInteger("graph-trim-interval", 1000);
return GraphTrimInterval.getValue();
}
bool AnalyzerOptions::shouldSynthesizeBodies() {
return getBooleanOption("faux-bodies", true);
}
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