[clang-tidy][NFC] Fix misc-const-correctness warnings (13/N)

clang-tools-extra/clang-tidy/bugprone/MisplacedWideningCastCheck.cpp

@@ -52,8 +52,8 @@ static unsigned getMaxCalculationWidth(const ASTContext &Context,
   E = E->IgnoreParenImpCasts();
 
   if (const auto *Bop = dyn_cast<BinaryOperator>(E)) {
-    unsigned LHSWidth = getMaxCalculationWidth(Context, Bop->getLHS());
-    unsigned RHSWidth = getMaxCalculationWidth(Context, Bop->getRHS());
+    const unsigned LHSWidth = getMaxCalculationWidth(Context, Bop->getLHS());
+    const unsigned RHSWidth = getMaxCalculationWidth(Context, Bop->getRHS());
     if (Bop->getOpcode() == BO_Mul)
       return LHSWidth + RHSWidth;
     if (Bop->getOpcode() == BO_Add)
@@ -79,7 +79,7 @@ static unsigned getMaxCalculationWidth(const ASTContext &Context,
     if (Uop->getOpcode() == UO_Not)
       return 1024U;
 
-    QualType T = Uop->getType();
+    const QualType T = Uop->getType();
     return T->isIntegerType() ? Context.getIntWidth(T) : 1024U;
   } else if (const auto *I = dyn_cast<IntegerLiteral>(E)) {
     return I->getValue().getActiveBits();
@@ -190,10 +190,10 @@ void MisplacedWideningCastCheck::check(const MatchFinder::MatchResult &Result) {
       Calc->isTypeDependent() || Calc->isValueDependent())
     return;
 
-  ASTContext &Context = *Result.Context;
+  const ASTContext &Context = *Result.Context;
 
-  QualType CastType = Cast->getType();
-  QualType CalcType = Calc->getType();
+  const QualType CastType = Cast->getType();
+  const QualType CalcType = Calc->getType();
 
   // Explicit truncation using cast.
   if (Context.getIntWidth(CastType) < Context.getIntWidth(CalcType))

clang-tools-extra/clang-tidy/bugprone/MoveForwardingReferenceCheck.cpp

@@ -21,7 +21,7 @@ static void replaceMoveWithForward(const UnresolvedLookupExpr *Callee,
   const SourceManager &SM = Context.getSourceManager();
   const LangOptions &LangOpts = Context.getLangOpts();
 
-  CharSourceRange CallRange =
+  const CharSourceRange CallRange =
       Lexer::makeFileCharRange(CharSourceRange::getTokenRange(
                                    Callee->getBeginLoc(), Callee->getEndLoc()),
                                SM, LangOpts);
@@ -39,7 +39,7 @@ static void replaceMoveWithForward(const UnresolvedLookupExpr *Callee,
     // std::move(). This will hopefully prevent erroneous replacements if the
     // code does unusual things (e.g. create an alias for std::move() in
     // another namespace).
-    NestedNameSpecifier NNS = Callee->getQualifier();
+    const NestedNameSpecifier NNS = Callee->getQualifier();
     switch (NNS.getKind()) {
     case NestedNameSpecifier::Kind::Null:
       // Called as "move" (i.e. presumably the code had a "using std::move;").

clang-tools-extra/clang-tidy/bugprone/MultiLevelImplicitPointerConversionCheck.cpp

@@ -86,8 +86,9 @@ MultiLevelImplicitPointerConversionCheck::getCheckTraversalKind() const {
 void MultiLevelImplicitPointerConversionCheck::check(
     const MatchFinder::MatchResult &Result) {
   const auto *MatchedExpr = Result.Nodes.getNodeAs<ImplicitCastExpr>("expr");
-  QualType Target = MatchedExpr->getType().getDesugaredType(*Result.Context);
-  QualType Source =
+  const QualType Target =
+      MatchedExpr->getType().getDesugaredType(*Result.Context);
+  const QualType Source =
       MatchedExpr->getSubExpr()->getType().getDesugaredType(*Result.Context);
 
   diag(MatchedExpr->getExprLoc(), "multilevel pointer conversion from %0 to "

clang-tools-extra/clang-tidy/bugprone/MultipleNewInOneExpressionCheck.cpp

@@ -51,7 +51,8 @@ namespace {
 
 AST_MATCHER_P(CXXTryStmt, hasHandlerFor,
               ast_matchers::internal::Matcher<QualType>, InnerMatcher) {
-  for (unsigned NH = Node.getNumHandlers(), I = 0; I < NH; ++I) {
+  const unsigned NH = Node.getNumHandlers();
+  for (unsigned I = 0; I < NH; ++I) {
     const CXXCatchStmt *CatchS = Node.getHandler(I);
     // Check for generic catch handler (match anything).
     if (CatchS->getCaughtType().isNull())
@@ -66,7 +67,7 @@ AST_MATCHER_P(CXXTryStmt, hasHandlerFor,
 }
 
 AST_MATCHER(CXXNewExpr, mayThrow) {
-  FunctionDecl *OperatorNew = Node.getOperatorNew();
+  const FunctionDecl *OperatorNew = Node.getOperatorNew();
   if (!OperatorNew)
     return false;
   return !OperatorNew->getType()->castAs<FunctionProtoType>()->isNothrow();

clang-tools-extra/clang-tidy/bugprone/NarrowingConversionsCheck.cpp

@@ -29,15 +29,15 @@ AST_MATCHER_P(QualType, hasAnyType, std::vector<StringRef>, Names) {
   if (Names.empty())
     return false;
 
-  std::string Name = Node.getLocalUnqualifiedType().getAsString();
+  const std::string Name = Node.getLocalUnqualifiedType().getAsString();
   return llvm::is_contained(Names, Name);
 }
 
 AST_MATCHER(FieldDecl, hasIntBitwidth) {
   assert(Node.isBitField());
   const ASTContext &Ctx = Node.getASTContext();
-  unsigned IntBitWidth = Ctx.getIntWidth(Ctx.IntTy);
-  unsigned CurrentBitWidth = Node.getBitWidthValue();
+  const unsigned IntBitWidth = Ctx.getIntWidth(Ctx.IntTy);
+  const unsigned CurrentBitWidth = Node.getBitWidthValue();
   return IntBitWidth == CurrentBitWidth;
 }
 
@@ -79,7 +79,7 @@ void NarrowingConversionsCheck::registerMatchers(MatchFinder *Finder) {
   const auto IsCeilFloorCallExpr = expr(callExpr(callee(functionDecl(
       hasAnyName("::ceil", "::std::ceil", "::floor", "::std::floor")))));
 
-  std::vector<StringRef> IgnoreConversionFromTypesVec =
+  const std::vector<StringRef> IgnoreConversionFromTypesVec =
       utils::options::parseStringList(IgnoreConversionFromTypes);
 
   // We may want to exclude other types from the checks, such as `size_type`
@@ -243,7 +243,7 @@ struct IntegerRange {
 static IntegerRange createFromType(const ASTContext &Context,
                                    const BuiltinType &T) {
   if (T.isFloatingPoint()) {
-    unsigned PrecisionBits = llvm::APFloatBase::semanticsPrecision(
+    const unsigned PrecisionBits = llvm::APFloatBase::semanticsPrecision(
         Context.getFloatTypeSemantics(T.desugar()));
     // Contrary to two's complement integer, floating point values are
     // symmetric and have the same number of positive and negative values.
@@ -262,24 +262,24 @@ static IntegerRange createFromType(const ASTContext &Context,
     return {LowerValue, UpperValue};
   }
   assert(T.isInteger() && "Unexpected builtin type");
-  uint64_t TypeSize = Context.getTypeSize(&T);
-  bool IsUnsignedInteger = T.isUnsignedInteger();
+  const uint64_t TypeSize = Context.getTypeSize(&T);
+  const bool IsUnsignedInteger = T.isUnsignedInteger();
   return {llvm::APSInt::getMinValue(TypeSize, IsUnsignedInteger),
           llvm::APSInt::getMaxValue(TypeSize, IsUnsignedInteger)};
 }
 
 static bool isWideEnoughToHold(const ASTContext &Context,
                                const BuiltinType &FromType,
                                const BuiltinType &ToType) {
-  IntegerRange FromIntegerRange = createFromType(Context, FromType);
-  IntegerRange ToIntegerRange = createFromType(Context, ToType);
+  const IntegerRange FromIntegerRange = createFromType(Context, FromType);
+  const IntegerRange ToIntegerRange = createFromType(Context, ToType);
   return ToIntegerRange.contains(FromIntegerRange);
 }
 
 static bool isWideEnoughToHold(const ASTContext &Context,
                                const llvm::APSInt &IntegerConstant,
                                const BuiltinType &ToType) {
-  IntegerRange ToIntegerRange = createFromType(Context, ToType);
+  const IntegerRange ToIntegerRange = createFromType(Context, ToType);
   return ToIntegerRange.contains(IntegerConstant);
 }
 
@@ -289,13 +289,13 @@ static bool isWideEnoughToHold(const ASTContext &Context,
 static bool isFloatExactlyRepresentable(const ASTContext &Context,
                                         const llvm::APFloat &FloatConstant,
                                         const QualType &DestType) {
-  unsigned DestWidth = Context.getIntWidth(DestType);
-  bool DestSigned = DestType->isSignedIntegerOrEnumerationType();
+  const unsigned DestWidth = Context.getIntWidth(DestType);
+  const bool DestSigned = DestType->isSignedIntegerOrEnumerationType();
   llvm::APSInt Result = llvm::APSInt(DestWidth, !DestSigned);
   bool IsExact = false;
-  bool Overflows = FloatConstant.convertToInteger(
-                       Result, llvm::APFloat::rmTowardZero, &IsExact) &
-                   llvm::APFloat::opInvalidOp;
+  const bool Overflows = FloatConstant.convertToInteger(
+                             Result, llvm::APFloat::rmTowardZero, &IsExact) &
+                         llvm::APFloat::opInvalidOp;
   return !Overflows && IsExact;
 }
 
@@ -321,8 +321,8 @@ bool NarrowingConversionsCheck::isWarningInhibitedByEquivalentSize(
   // With this option, we don't warn on conversions that have equivalent width
   // in bits. eg. uint32 <-> int32.
   if (!WarnOnEquivalentBitWidth) {
-    uint64_t FromTypeSize = Context.getTypeSize(&FromType);
-    uint64_t ToTypeSize = Context.getTypeSize(&ToType);
+    const uint64_t FromTypeSize = Context.getTypeSize(&FromType);
+    const uint64_t ToTypeSize = Context.getTypeSize(&ToType);
     if (FromTypeSize == ToTypeSize) {
       return true;
     }
@@ -406,8 +406,8 @@ void NarrowingConversionsCheck::handleIntegralCast(const ASTContext &Context,
     // With this option, we don't warn on conversions that have equivalent width
     // in bits. eg. uint32 <-> int32.
     if (!WarnOnEquivalentBitWidth) {
-      uint64_t FromTypeSize = Context.getTypeSize(FromType);
-      uint64_t ToTypeSize = Context.getTypeSize(ToType);
+      const uint64_t FromTypeSize = Context.getTypeSize(FromType);
+      const uint64_t ToTypeSize = Context.getTypeSize(ToType);
       if (FromTypeSize == ToTypeSize)
         return;
     }
@@ -583,7 +583,7 @@ void NarrowingConversionsCheck::handleImplicitCast(
     return;
   if (handleConditionalOperator(Context, Lhs, Rhs))
     return;
-  SourceLocation SourceLoc = Lhs.getExprLoc();
+  const SourceLocation SourceLoc = Lhs.getExprLoc();
   switch (Cast.getCastKind()) {
   case CK_BooleanToSignedIntegral:
     handleBooleanToSignedIntegral(Context, SourceLoc, Lhs, Rhs);

clang-tools-extra/clang-tidy/bugprone/NondeterministicPointerIterationOrderCheck.cpp

@@ -60,7 +60,7 @@ void NondeterministicPointerIterationOrderCheck::check(
           TemplateArgs[0].getAsType()->isPointerType();
 
       if (IsAlgoArgPointer) {
-        SourceRange R = RangeInit->getSourceRange();
+        const SourceRange R = RangeInit->getSourceRange();
         diag(R.getBegin(), "iteration of pointers is nondeterministic") << R;
       }
     }
@@ -69,7 +69,7 @@ void NondeterministicPointerIterationOrderCheck::check(
   const auto *SortPointers = Result.Nodes.getNodeAs<Stmt>("sortsemantic");
 
   if ((SortPointers) && !(SortPointers->getBeginLoc().isMacroID())) {
-    SourceRange R = SortPointers->getSourceRange();
+    const SourceRange R = SortPointers->getSourceRange();
     diag(R.getBegin(), "sorting pointers is nondeterministic") << R;
   }
 }