[analyzer][NFC] Switch to using CallDescription::matches() instead of isCalled()

This patch replaces each use of the previous API with the new one.
In variadic cases, it will use the ADL `matchesAny(Call, CDs...)`
variadic function.
Also simplifies some code involving such operations.

Reviewed By: martong, xazax.hun

Differential Revision: https://reviews.llvm.org/D113591

Author: Balazs Benics

clang/include/clang/StaticAnalyzer/Core/PathSensitive/CallEvent.h

@@ -257,20 +257,6 @@ class CallEvent {
     return false;
   }
 
-  /// Returns true if the CallEvent is a call to a function that matches
-  /// the CallDescription.
-  ///
-  /// Note that this function is not intended to be used to match Obj-C method
-  /// calls.
-  bool isCalled(const CallDescription &CD) const;
-
-  /// Returns true whether the CallEvent is any of the CallDescriptions supplied
-  /// as a parameter.
-  template <typename FirstCallDesc, typename... CallDescs>
-  bool isCalled(const FirstCallDesc &First, const CallDescs &... Rest) const {
-    return isCalled(First) || isCalled(Rest...);
-  }
-
   /// Returns a source range for the entire call, suitable for
   /// outputting in diagnostics.
   virtual SourceRange getSourceRange() const {

clang/lib/StaticAnalyzer/Checkers/BasicObjCFoundationChecks.cpp

@@ -551,8 +551,8 @@ void CFRetainReleaseChecker::checkPreCall(const CallEvent &Call,
     return;
 
   // Check if we called CFRetain/CFRelease/CFMakeCollectable/CFAutorelease.
-  if (!(Call.isCalled(CFRetain) || Call.isCalled(CFRelease) ||
-        Call.isCalled(CFMakeCollectable) || Call.isCalled(CFAutorelease)))
+
+  if (!matchesAny(Call, CFRetain, CFRelease, CFMakeCollectable, CFAutorelease))
     return;
 
   // Get the argument's value.

clang/lib/StaticAnalyzer/Checkers/BlockInCriticalSectionChecker.cpp

@@ -97,14 +97,7 @@ void BlockInCriticalSectionChecker::initIdentifierInfo(ASTContext &Ctx) const {
 }
 
 bool BlockInCriticalSectionChecker::isBlockingFunction(const CallEvent &Call) const {
-  if (Call.isCalled(SleepFn)
-      || Call.isCalled(GetcFn)
-      || Call.isCalled(FgetsFn)
-      || Call.isCalled(ReadFn)
-      || Call.isCalled(RecvFn)) {
-    return true;
-  }
-  return false;
+  return matchesAny(Call, SleepFn, GetcFn, FgetsFn, ReadFn, RecvFn);
 }
 
 bool BlockInCriticalSectionChecker::isLockFunction(const CallEvent &Call) const {
@@ -114,15 +107,8 @@ bool BlockInCriticalSectionChecker::isLockFunction(const CallEvent &Call) const
       return true;
   }
 
-  if (Call.isCalled(LockFn)
-      || Call.isCalled(PthreadLockFn)
-      || Call.isCalled(PthreadTryLockFn)
-      || Call.isCalled(MtxLock)
-      || Call.isCalled(MtxTimedLock)
-      || Call.isCalled(MtxTryLock)) {
-    return true;
-  }
-  return false;
+  return matchesAny(Call, LockFn, PthreadLockFn, PthreadTryLockFn, MtxLock,
+                    MtxTimedLock, MtxTryLock);
 }
 
 bool BlockInCriticalSectionChecker::isUnlockFunction(const CallEvent &Call) const {
@@ -133,12 +119,7 @@ bool BlockInCriticalSectionChecker::isUnlockFunction(const CallEvent &Call) cons
       return true;
   }
 
-  if (Call.isCalled(UnlockFn)
-       || Call.isCalled(PthreadUnlockFn)
-       || Call.isCalled(MtxUnlock)) {
-    return true;
-  }
-  return false;
+  return matchesAny(Call, UnlockFn, PthreadUnlockFn, MtxUnlock);
 }
 
 void BlockInCriticalSectionChecker::checkPostCall(const CallEvent &Call,

clang/lib/StaticAnalyzer/Checkers/CStringChecker.cpp

@@ -2272,11 +2272,10 @@ CStringChecker::FnCheck CStringChecker::identifyCall(const CallEvent &Call,
   if (!FD)
     return nullptr;
 
-  if (Call.isCalled(StdCopy)) {
+  if (StdCopy.matches(Call))
     return &CStringChecker::evalStdCopy;
-  } else if (Call.isCalled(StdCopyBackward)) {
+  if (StdCopyBackward.matches(Call))
     return &CStringChecker::evalStdCopyBackward;
-  }
 
   // Pro-actively check that argument types are safe to do arithmetic upon.
   // We do not want to crash if someone accidentally passes a structure

clang/lib/StaticAnalyzer/Checkers/ChrootChecker.cpp

@@ -64,11 +64,11 @@ class ChrootChecker : public Checker<eval::Call, check::PreCall> {
 } // end anonymous namespace
 
 bool ChrootChecker::evalCall(const CallEvent &Call, CheckerContext &C) const {
-  if (Call.isCalled(Chroot)) {
+  if (Chroot.matches(Call)) {
     evalChroot(Call, C);
     return true;
   }
-  if (Call.isCalled(Chdir)) {
+  if (Chdir.matches(Call)) {
     evalChdir(Call, C);
     return true;
   }
@@ -116,7 +116,7 @@ void ChrootChecker::evalChdir(const CallEvent &Call, CheckerContext &C) const {
 void ChrootChecker::checkPreCall(const CallEvent &Call,
                                  CheckerContext &C) const {
   // Ignore chroot and chdir.
-  if (Call.isCalled(Chroot) || Call.isCalled(Chdir))
+  if (matchesAny(Call, Chroot, Chdir))
     return;
 
   // If jail state is ROOT_CHANGED, generate BugReport.

clang/lib/StaticAnalyzer/Checkers/InnerPointerChecker.cpp

@@ -126,19 +126,15 @@ bool InnerPointerChecker::isInvalidatingMemberFunction(
       return true;
     return false;
   }
-  return (isa<CXXDestructorCall>(Call) || Call.isCalled(AppendFn) ||
-          Call.isCalled(AssignFn) || Call.isCalled(ClearFn) ||
-          Call.isCalled(EraseFn) || Call.isCalled(InsertFn) ||
-          Call.isCalled(PopBackFn) || Call.isCalled(PushBackFn) ||
-          Call.isCalled(ReplaceFn) || Call.isCalled(ReserveFn) ||
-          Call.isCalled(ResizeFn) || Call.isCalled(ShrinkToFitFn) ||
-          Call.isCalled(SwapFn));
+  return isa<CXXDestructorCall>(Call) ||
+         matchesAny(Call, AppendFn, AssignFn, ClearFn, EraseFn, InsertFn,
+                    PopBackFn, PushBackFn, ReplaceFn, ReserveFn, ResizeFn,
+                    ShrinkToFitFn, SwapFn);
 }
 
 bool InnerPointerChecker::isInnerPointerAccessFunction(
     const CallEvent &Call) const {
-  return (Call.isCalled(CStrFn) || Call.isCalled(DataFn) ||
-          Call.isCalled(DataMemberFn));
+  return matchesAny(Call, CStrFn, DataFn, DataMemberFn);
 }
 
 void InnerPointerChecker::markPtrSymbolsReleased(const CallEvent &Call,
@@ -185,7 +181,7 @@ void InnerPointerChecker::checkFunctionArguments(const CallEvent &Call,
 
       // std::addressof function accepts a non-const reference as an argument,
       // but doesn't modify it.
-      if (Call.isCalled(AddressofFn))
+      if (AddressofFn.matches(Call))
         continue;
 
       markPtrSymbolsReleased(Call, State, ArgRegion, C);

clang/lib/StaticAnalyzer/Checkers/MIGChecker.cpp

@@ -181,7 +181,7 @@ static bool isInMIGCall(CheckerContext &C) {
 }
 
 void MIGChecker::checkPostCall(const CallEvent &Call, CheckerContext &C) const {
-  if (Call.isCalled(OsRefRetain)) {
+  if (OsRefRetain.matches(Call)) {
     // If the code is doing reference counting over the parameter,
     // it opens up an opportunity for safely calling a destructor function.
     // TODO: We should still check for over-releases.
@@ -199,7 +199,7 @@ void MIGChecker::checkPostCall(const CallEvent &Call, CheckerContext &C) const {
 
   auto I = llvm::find_if(Deallocators,
                          [&](const std::pair<CallDescription, unsigned> &Item) {
-                           return Call.isCalled(Item.first);
+                           return Item.first.matches(Call);
                          });
   if (I == Deallocators.end())
     return;

clang/lib/StaticAnalyzer/Checkers/MmapWriteExecChecker.cpp

@@ -47,7 +47,7 @@ int MmapWriteExecChecker::ProtRead  = 0x01;
 
 void MmapWriteExecChecker::checkPreCall(const CallEvent &Call,
                                          CheckerContext &C) const {
-  if (Call.isCalled(MmapFn) || Call.isCalled(MprotectFn)) {
+  if (matchesAny(Call, MmapFn, MprotectFn)) {
     SVal ProtVal = Call.getArgSVal(2);
     Optional<nonloc::ConcreteInt> ProtLoc = ProtVal.getAs<nonloc::ConcreteInt>();
     int64_t Prot = ProtLoc->getValue().getSExtValue();

clang/lib/StaticAnalyzer/Checkers/SimpleStreamChecker.cpp

@@ -120,7 +120,7 @@ void SimpleStreamChecker::checkPostCall(const CallEvent &Call,
   if (!Call.isGlobalCFunction())
     return;
 
-  if (!Call.isCalled(OpenFn))
+  if (!OpenFn.matches(Call))
     return;
 
   // Get the symbolic value corresponding to the file handle.
@@ -139,7 +139,7 @@ void SimpleStreamChecker::checkPreCall(const CallEvent &Call,
   if (!Call.isGlobalCFunction())
     return;
 
-  if (!Call.isCalled(CloseFn))
+  if (!CloseFn.matches(Call))
     return;
 
   // Get the symbolic value corresponding to the file handle.

clang/lib/StaticAnalyzer/Checkers/SmartPtrModeling.cpp

@@ -286,7 +286,7 @@ bool SmartPtrModeling::evalCall(const CallEvent &Call,
   if (ModelSmartPtrDereference && isStdOstreamOperatorCall(Call))
     return handleOstreamOperator(Call, C);
 
-  if (Call.isCalled(StdSwapCall)) {
+  if (StdSwapCall.matches(Call)) {
     // Check the first arg, if it is of std::unique_ptr type.
     assert(Call.getNumArgs() == 2 && "std::swap should have two arguments");
     const Expr *FirstArg = Call.getArgExpr(0);
@@ -295,8 +295,7 @@ bool SmartPtrModeling::evalCall(const CallEvent &Call,
     return handleSwap(State, Call.getArgSVal(0), Call.getArgSVal(1), C);
   }
 
-  if (Call.isCalled(StdMakeUniqueCall) ||
-      Call.isCalled(StdMakeUniqueForOverwriteCall)) {
+  if (matchesAny(Call, StdMakeUniqueCall, StdMakeUniqueForOverwriteCall)) {
     if (!ModelSmartPtrDereference)
       return false;
 

clang/lib/StaticAnalyzer/Checkers/StringChecker.cpp

@@ -37,7 +37,7 @@ class StringChecker : public Checker<check::PreCall> {
 
 bool StringChecker::isCharToStringCtor(const CallEvent &Call,
                                        const ASTContext &ACtx) const {
-  if (!Call.isCalled(TwoParamStdStringCtor))
+  if (!TwoParamStdStringCtor.matches(Call))
     return false;
   const auto *FD = dyn_cast<FunctionDecl>(Call.getDecl());
   assert(FD);

clang/lib/StaticAnalyzer/Checkers/ValistChecker.cpp

@@ -127,15 +127,15 @@ void ValistChecker::checkPreCall(const CallEvent &Call,
                                  CheckerContext &C) const {
   if (!Call.isGlobalCFunction())
     return;
-  if (Call.isCalled(VaStart))
+  if (VaStart.matches(Call))
     checkVAListStartCall(Call, C, false);
-  else if (Call.isCalled(VaCopy))
+  else if (VaCopy.matches(Call))
     checkVAListStartCall(Call, C, true);
-  else if (Call.isCalled(VaEnd))
+  else if (VaEnd.matches(Call))
     checkVAListEndCall(Call, C);
   else {
     for (auto FuncInfo : VAListAccepters) {
-      if (!Call.isCalled(FuncInfo.Func))
+      if (!FuncInfo.Func.matches(Call))
         continue;
       bool Symbolic;
       const MemRegion *VAList =

clang/lib/StaticAnalyzer/Checkers/cert/PutenvWithAutoChecker.cpp

@@ -39,7 +39,7 @@ class PutenvWithAutoChecker : public Checker<check::PostCall> {
 
 void PutenvWithAutoChecker::checkPostCall(const CallEvent &Call,
                                           CheckerContext &C) const {
-  if (!Call.isCalled(Putenv))
+  if (!Putenv.matches(Call))
     return;
 
   SVal ArgV = Call.getArgSVal(0);

clang/lib/StaticAnalyzer/Core/CallEvent.cpp

@@ -303,10 +303,6 @@ ProgramPoint CallEvent::getProgramPoint(bool IsPreVisit,
   return PostImplicitCall(D, Loc, getLocationContext(), Tag);
 }
 
-bool CallEvent::isCalled(const CallDescription &CD) const {
-  return CD.matches(*this);
-}
-
 SVal CallEvent::getArgSVal(unsigned Index) const {
   const Expr *ArgE = getArgExpr(Index);
   if (!ArgE)

clang/unittests/StaticAnalyzer/ConflictingEvalCallsTest.cpp

@@ -22,7 +22,7 @@ class EvalCallBase : public Checker<eval::Call> {
 
 public:
   bool evalCall(const CallEvent &Call, CheckerContext &C) const {
-    return Call.isCalled(Foo);
+    return Foo.matches(Call);
   }
 };
 

clang/unittests/StaticAnalyzer/NoStateChangeFuncVisitorTest.cpp

@@ -86,17 +86,17 @@ class StatefulChecker : public Checker<check::PreCall> {
 
 public:
   void checkPreCall(const CallEvent &Call, CheckerContext &C) const {
-    if (Call.isCalled(CallDescription{"preventError", 0})) {
+    if (CallDescription{"preventError", 0}.matches(Call)) {
       C.addTransition(C.getState()->set<ErrorPrevented>(true));
       return;
     }
 
-    if (Call.isCalled(CallDescription{"allowError", 0})) {
+    if (CallDescription{"allowError", 0}.matches(Call)) {
       C.addTransition(C.getState()->set<ErrorPrevented>(false));
       return;
     }
 
-    if (Call.isCalled(CallDescription{"error", 0})) {
+    if (CallDescription{"error", 0}.matches(Call)) {
       if (C.getState()->get<ErrorPrevented>())
         return;
       const ExplodedNode *N = C.generateErrorNode();