[clang-format][NFC] Insert/remove braces in clang/lib/Format/

[owenpan]

Summary

This patch is the result of running clang-format -style="{InsertBraces: true, RemoveBracesLLVM: true}" (version 09865ae) on clang/lib/Format/.

[curdeius]

Ok. So we mainly missed braces on complex conditionals. LGTM.

[MyDeveloperDay]

LGTM too.. @owenpan this is one of my favourite features!!

[owenpan]

clang/lib/Format/UnwrappedLineParser.cpp

2769

From https://llvm.org/docs/CodingStandards.html#don-t-use-braces-on-simple-single-statement-bodies-of-if-else-loop-statements, it's unclear whether the braces should be removed when a block has a do-while loop as its single statement. Should I put the braces back and add handling of do-while for RemoveBracesLLVM?

clang/lib/Format/WhitespaceManager.cpp

231–239

It would be nice to remove the braces of the else here. See https://github.com/llvm/llvm-project/issues/55663.

[curdeius]

clang/lib/Format/UnwrappedLineParser.cpp

2769

It's indeed not clear, I remember having paused over this code for a moment.
I believe that the best course of action is to grep for both cases in the codebase and see what's more frequent (and whether there's some sort of consensus).

clang/lib/Format/WhitespaceManager.cpp

231–239

+1. Would you fix it manually here then and fix it later?

[owenpan]

clang/lib/Format/UnwrappedLineParser.cpp

2769

Good idea. I don't think there's any consensus specifically about this but will ask on discourse.llvm.org. To err on the conservative side, I will manually add the braces back for now.

clang/lib/Format/WhitespaceManager.cpp

231–239

I will leave it as is and use it as a test case for later. Implementing this would add more complexity to RemoveBracesLLVM, which is complex enough already. I will look into it in a few months as I will be away for the summer.

[owenpan]

In D126157#3531635, @MyDeveloperDay wrote:

LGTM too.. @owenpan this is one of my favourite features!!

I love it too! :D

[owenpan]

clang/lib/Format/UnwrappedLineParser.cpp

2769

See D126512.

clang/lib/Format/WhitespaceManager.cpp

231–239

See D127260.

clang/lib/Format/AffectedRangeManager.cpp

while (I != E) {
     PreviousLine = Line;
     ++I;
   }
   return SomeLineAffected;
 }
 
 bool AffectedRangeManager::affectsCharSourceRange(
     const CharSourceRange &Range) {
-  for (const CharSourceRange &R : Ranges)
+  for (const CharSourceRange &R : Ranges) {
     if (!SourceMgr.isBeforeInTranslationUnit(Range.getEnd(), R.getBegin()) &&
-        !SourceMgr.isBeforeInTranslationUnit(R.getEnd(), Range.getBegin()))
+        !SourceMgr.isBeforeInTranslationUnit(R.getEnd(), Range.getBegin())) {
       return true;
+    }
+  }
   return false;
 }
 
 bool AffectedRangeManager::affectsTokenRange(const FormatToken &First,
                                              const FormatToken &Last,
                                              bool IncludeLeadingNewlines) {
   SourceLocation Start = First.WhitespaceRange.getBegin();
   if (!IncludeLeadingNewlines)

clang/lib/Format/BreakableToken.cpp

getCommentSplit(StringRef Text, unsigned ContentStartColumn,
 
   // In JavaScript, some @tags can be followed by {, and machinery that parses
   // these comments will fail to understand the comment if followed by a line
   // break. So avoid ever breaking before a {.
   if (Style.isJavaScript()) {
     StringRef::size_type SpaceOffset =
         Text.find_first_of(Blanks, MaxSplitBytes);
     if (SpaceOffset != StringRef::npos && SpaceOffset + 1 < Text.size() &&
-        Text[SpaceOffset + 1] == '{')
+        Text[SpaceOffset + 1] == '{') {
       MaxSplitBytes = SpaceOffset + 1;
     }
+  }
 
   StringRef::size_type SpaceOffset = Text.find_last_of(Blanks, MaxSplitBytes);
 
   static const auto kNumberedListRegexp = llvm::Regex("^[1-9][0-9]?\\.");
   // Some spaces are unacceptable to break on, rewind past them.
   while (SpaceOffset != StringRef::npos) {
     // If a line-comment ends with `\`, the next line continues the comment,
     // whether or not it starts with `//`. This is confusing and triggers
getCommentSplit(StringRef Text, unsigned ContentStartColumn,
   }
 
   if (SpaceOffset == StringRef::npos ||
       // Don't break at leading whitespace.
       Text.find_last_not_of(Blanks, SpaceOffset) == StringRef::npos) {
     // Make sure that we don't break at leading whitespace that
     // reaches past MaxSplit.
     StringRef::size_type FirstNonWhitespace = Text.find_first_not_of(Blanks);
-    if (FirstNonWhitespace == StringRef::npos)
+    if (FirstNonWhitespace == StringRef::npos) {
       // If the comment is only whitespace, we cannot split.
       return BreakableToken::Split(StringRef::npos, 0);
+    }
     SpaceOffset = Text.find_first_of(
         Blanks, std::max<unsigned>(MaxSplitBytes, FirstNonWhitespace));
   }
   if (SpaceOffset != StringRef::npos && SpaceOffset != 0) {
     // adaptStartOfLine will break after lines starting with /** if the comment
     // is broken anywhere. Avoid emitting this break twice here.
     // Example: in /** longtextcomesherethatbreaks */ (with ColumnLimit 20) will
     // insert a break after /**, so this code must not insert the same break.
BreakableBlockComment::BreakableBlockComment(
   DecorationColumn = StartColumn + 1;
 
   // Account for comment decoration patterns like this:
   //
   // /*
   // ** blah blah blah
   // */
   if (Lines.size() >= 2 && Content[1].startswith("**") &&
-      static_cast<unsigned>(ContentColumn[1]) == StartColumn)
+      static_cast<unsigned>(ContentColumn[1]) == StartColumn) {
     DecorationColumn = StartColumn;
+  }
 
   Decoration = "* ";
   if (Lines.size() == 1 && !FirstInLine) {
     // Comments for which FirstInLine is false can start on arbitrary column,
     // and available horizontal space can be too small to align consecutive
     // lines with the first one.
     // FIXME: We could, probably, align them to current indentation level, but
     // now we just wrap them without stars.
for (size_t i = 1, e = Lines.size(); i < e; ++i) {
     // For all other lines, adjust the line to exclude the star and
     // (optionally) the first whitespace.
     unsigned DecorationSize = Decoration.startswith(Content[i])
                                   ? Content[i].size()
                                   : Decoration.size();
     if (DecorationSize)
       ContentColumn[i] = DecorationColumn + DecorationSize;
     Content[i] = Content[i].substr(DecorationSize);
-    if (!Decoration.startswith(Content[i]))
+    if (!Decoration.startswith(Content[i])) {
       IndentAtLineBreak =
           std::min<int>(IndentAtLineBreak, std::max(0, ContentColumn[i]));
     }
+  }
   IndentAtLineBreak = std::max<unsigned>(IndentAtLineBreak, Decoration.size());
 
   // Detect a multiline jsdoc comment and set DelimitersOnNewline in that case.
   if (Style.isJavaScript() || Style.Language == FormatStyle::LK_Java) {
     if ((Lines[0] == "*" || Lines[0].startswith("* ")) && Lines.size() > 1) {
       // This is a multiline jsdoc comment.
       DelimitersOnNewline = true;
     } else if (Lines[0].startswith("* ") && Lines.size() == 1) {
       // Detect a long single-line comment, like:
       // /** long long long */
       // Below, '2' is the width of '*/'.
       unsigned EndColumn =
           ContentColumn[0] +
           encoding::columnWidthWithTabs(Lines[0], ContentColumn[0],
                                         Style.TabWidth, Encoding) +
           2;
       DelimitersOnNewline = EndColumn > Style.ColumnLimit;
     }
   }
 
   LLVM_DEBUG({
     llvm::dbgs() << "IndentAtLineBreak " << IndentAtLineBreak << "\n";
     llvm::dbgs() << "DelimitersOnNewline " << DelimitersOnNewline << "\n";
-    for (size_t i = 0; i < Lines.size(); ++i)
+    for (size_t i = 0; i < Lines.size(); ++i) {
       llvm::dbgs() << i << " |" << Content[i] << "| "
                    << "CC=" << ContentColumn[i] << "| "
                    << "IN=" << (Content[i].data() - Lines[i].data()) << "\n";
+    }
   });
 }
 
 BreakableToken::Split BreakableBlockComment::getSplit(
     unsigned LineIndex, unsigned TailOffset, unsigned ColumnLimit,
     unsigned ContentStartColumn, const llvm::Regex &CommentPragmasRegex) const {
   // Don't break lines matching the comment pragmas regex.
   if (CommentPragmasRegex.match(Content[LineIndex]))
unsigned BreakableBlockComment::getContentIndent(unsigned LineIndex) const {
   // /** line 0 */
   // is "* line 0", so we need to skip over the decoration in that case.
   StringRef ContentWithNoDecoration = Content[LineIndex];
   if (LineIndex == 0 && ContentWithNoDecoration.startswith("*"))
     ContentWithNoDecoration = ContentWithNoDecoration.substr(1).ltrim(Blanks);
   StringRef FirstWord = ContentWithNoDecoration.substr(
       0, ContentWithNoDecoration.find_first_of(Blanks));
   if (ContentIndentingJavadocAnnotations.find(FirstWord) !=
-      ContentIndentingJavadocAnnotations.end())
+      ContentIndentingJavadocAnnotations.end()) {
     return Style.ContinuationIndentWidth;
+  }
   return 0;
 }
 
 void BreakableBlockComment::insertBreak(unsigned LineIndex, unsigned TailOffset,
                                         Split Split, unsigned ContentIndent,
                                         WhitespaceManager &Whitespaces) const {
   StringRef Text = Content[LineIndex].substr(TailOffset);
   StringRef Prefix = Decoration;
if (!mayReflow(LineIndex, CommentPragmasRegex))
     return Split(StringRef::npos, 0);
 
   // If we're reflowing into a line with content indent, only reflow the next
   // line if its starting whitespace matches the content indent.
   size_t Trimmed = Content[LineIndex].find_first_not_of(Blanks);
   if (LineIndex) {
     unsigned PreviousContentIndent = getContentIndent(LineIndex - 1);
     if (PreviousContentIndent && Trimmed != StringRef::npos &&
-        Trimmed != PreviousContentIndent)
+        Trimmed != PreviousContentIndent) {
       return Split(StringRef::npos, 0);
     }
+  }
 
   return Split(0, Trimmed != StringRef::npos ? Trimmed : 0);
 }
 
 bool BreakableBlockComment::introducesBreakBeforeToken() const {
   // A break is introduced when we want delimiters on newline.
   return DelimitersOnNewline &&
          Lines[0].substr(1).find_first_not_of(Blanks) != StringRef::npos;
void BreakableBlockComment::adaptStartOfLine(
     unsigned LineIndex, WhitespaceManager &Whitespaces) const {
   if (LineIndex == 0) {
     if (DelimitersOnNewline) {
       // Since we're breaking at index 1 below, the break position and the
       // break length are the same.
       // Note: this works because getCommentSplit is careful never to split at
       // the beginning of a line.
       size_t BreakLength = Lines[0].substr(1).find_first_not_of(Blanks);
-      if (BreakLength != StringRef::npos)
+      if (BreakLength != StringRef::npos) {
         insertBreak(LineIndex, 0, Split(1, BreakLength), /*ContentIndent=*/0,
                     Whitespaces);
       }
+    }
     return;
   }
   // Here no reflow with the previous line will happen.
   // Fix the decoration of the line at LineIndex.
   StringRef Prefix = Decoration;
   if (Content[LineIndex].empty()) {
     if (LineIndex + 1 == Lines.size()) {
       if (!LastLineNeedsDecoration) {
for (size_t i = FirstLineIndex, e = Lines.size(); i < e; ++i) {
       // functions like isPunctuation provided by CharInfo.
       const auto NoSpaceBeforeFirstCommentChar = [&]() {
         assert(Lines[i].size() > IndentPrefix.size());
         const char FirstCommentChar = Lines[i][IndentPrefix.size()];
         const unsigned FirstCharByteSize =
             encoding::getCodePointNumBytes(FirstCommentChar, Encoding);
         if (encoding::columnWidth(
                 Lines[i].substr(IndentPrefix.size(), FirstCharByteSize),
-                Encoding) != 1)
+                Encoding) != 1) {
           return false;
+        }
         // In C-like comments, add a space before #. For example this is useful
         // to preserve the relative indentation when commenting out code with
         // #includes.
         //
         // In languages using # as the comment leader such as proto, don't
         // add a space to support patterns like:
         // #########
         // # section

clang/lib/Format/ContinuationIndenter.cpp

static bool startsSegmentOfBuilderTypeCall(const FormatToken &Tok) {
   return Tok.isMemberAccess() && Tok.Previous && Tok.Previous->closesScope();
 }
 
 // Returns \c true if \c Current starts a new parameter.
 static bool startsNextParameter(const FormatToken &Current,
                                 const FormatStyle &Style) {
   const FormatToken &Previous = *Current.Previous;
   if (Current.is(TT_CtorInitializerComma) &&
-      Style.BreakConstructorInitializers == FormatStyle::BCIS_BeforeComma)
+      Style.BreakConstructorInitializers == FormatStyle::BCIS_BeforeComma) {
     return true;
+  }
   if (Style.Language == FormatStyle::LK_Proto && Current.is(TT_SelectorName))
     return true;
   return Previous.is(tok::comma) && !Current.isTrailingComment() &&
          ((Previous.isNot(TT_CtorInitializerComma) ||
            Style.BreakConstructorInitializers !=
                FormatStyle::BCIS_BeforeComma) &&
           (Previous.isNot(TT_InheritanceComma) ||
            Style.BreakInheritanceList != FormatStyle::BILS_BeforeComma));
return Style.Language == FormatStyle::LK_TextProto ||
            (LessTok.Previous && LessTok.Previous->is(tok::equal))));
 }
 
 // Returns the delimiter of a raw string literal, or None if TokenText is not
 // the text of a raw string literal. The delimiter could be the empty string.
 // For example, the delimiter of R"deli(cont)deli" is deli.
 static llvm::Optional<StringRef> getRawStringDelimiter(StringRef TokenText) {
   if (TokenText.size() < 5 // The smallest raw string possible is 'R"()"'.
-      || !TokenText.startswith("R\"") || !TokenText.endswith("\""))
+      || !TokenText.startswith("R\"") || !TokenText.endswith("\"")) {
     return None;
+  }
 
   // A raw string starts with 'R"<delimiter>(' and delimiter is ascii and has
   // size at most 16 by the standard, so the first '(' must be among the first
   // 19 bytes.
   size_t LParenPos = TokenText.substr(0, 19).find_first_of('(');
   if (LParenPos == StringRef::npos)
     return None;
   StringRef Delimiter = TokenText.substr(2, LParenPos - 2);
if (FirstStartColumn && Line->First->NewlinesBefore == 0)
     State.Column = FirstStartColumn;
   else
     State.Column = FirstIndent;
   // With preprocessor directive indentation, the line starts on column 0
   // since it's indented after the hash, but FirstIndent is set to the
   // preprocessor indent.
   if (Style.IndentPPDirectives == FormatStyle::PPDIS_AfterHash &&
       (Line->Type == LT_PreprocessorDirective ||
-       Line->Type == LT_ImportStatement))
+       Line->Type == LT_ImportStatement)) {
     State.Column = 0;
+  }
   State.Line = Line;
   State.NextToken = Line->First;
   State.Stack.push_back(ParenState(/*Tok=*/nullptr, FirstIndent, FirstIndent,
                                    /*AvoidBinPacking=*/false,
                                    /*NoLineBreak=*/false));
   State.NoContinuation = false;
   State.StartOfStringLiteral = 0;
   State.StartOfLineLevel = 0;

 }
 
 bool ContinuationIndenter::canBreak(const LineState &State) {
   const FormatToken &Current = *State.NextToken;
   const FormatToken &Previous = *Current.Previous;
   const auto &CurrentState = State.Stack.back();
   assert(&Previous == Current.Previous);
   if (!Current.CanBreakBefore && !(CurrentState.BreakBeforeClosingBrace &&
-                                   Current.closesBlockOrBlockTypeList(Style)))
+                                   Current.closesBlockOrBlockTypeList(Style))) {
     return false;
+  }
   // The opening "{" of a braced list has to be on the same line as the first
   // element if it is nested in another braced init list or function call.
   if (!Current.MustBreakBefore && Previous.is(tok::l_brace) &&
       Previous.isNot(TT_DictLiteral) && Previous.is(BK_BracedInit) &&
       Previous.Previous &&
-      Previous.Previous->isOneOf(tok::l_brace, tok::l_paren, tok::comma))
+      Previous.Previous->isOneOf(tok::l_brace, tok::l_paren, tok::comma)) {
     return false;
+  }
   // This prevents breaks like:
   //   ...
   //   SomeParameter, OtherParameter).DoSomething(
   //   ...
   // As they hide "DoSomething" and are generally bad for readability.
   if (Previous.opensScope() && Previous.isNot(tok::l_brace) &&
       State.LowestLevelOnLine < State.StartOfLineLevel &&
-      State.LowestLevelOnLine < Current.NestingLevel)
+      State.LowestLevelOnLine < Current.NestingLevel) {
     return false;
+  }
   if (Current.isMemberAccess() && CurrentState.ContainsUnwrappedBuilder)
     return false;
 
   // Don't create a 'hanging' indent if there are multiple blocks in a single
   // statement.
   if (Previous.is(tok::l_brace) && State.Stack.size() > 1 &&
       State.Stack[State.Stack.size() - 2].NestedBlockInlined &&
-      State.Stack[State.Stack.size() - 2].HasMultipleNestedBlocks)
+      State.Stack[State.Stack.size() - 2].HasMultipleNestedBlocks) {
     return false;
+  }
 
   // Don't break after very short return types (e.g. "void") as that is often
   // unexpected.
   if (Current.is(TT_FunctionDeclarationName) && State.Column < 6) {
     if (Style.AlwaysBreakAfterReturnType == FormatStyle::RTBS_None)
       return false;
   }
 
   // If binary operators are moved to the next line (including commas for some
   // styles of constructor initializers), that's always ok.
   if (!Current.isOneOf(TT_BinaryOperator, tok::comma) &&
-      CurrentState.NoLineBreakInOperand)
+      CurrentState.NoLineBreakInOperand) {
     return false;
+  }
 
   if (Previous.is(tok::l_square) && Previous.is(TT_ObjCMethodExpr))
     return false;
 
   return !CurrentState.NoLineBreak;
 }
 
 bool ContinuationIndenter::mustBreak(const LineState &State) {
   const FormatToken &Current = *State.NextToken;
   const FormatToken &Previous = *Current.Previous;
   const auto &CurrentState = State.Stack.back();
   if (Style.BraceWrapping.BeforeLambdaBody && Current.CanBreakBefore &&
       Current.is(TT_LambdaLBrace) && Previous.isNot(TT_LineComment)) {
     auto LambdaBodyLength = getLengthToMatchingParen(Current, State.Stack);
     return LambdaBodyLength > getColumnLimit(State);
   }
   if (Current.MustBreakBefore || Current.is(TT_InlineASMColon))
     return true;
   if (CurrentState.BreakBeforeClosingBrace &&
-      Current.closesBlockOrBlockTypeList(Style))
+      Current.closesBlockOrBlockTypeList(Style)) {
     return true;
+  }
   if (CurrentState.BreakBeforeClosingParen && Current.is(tok::r_paren))
     return true;
   if (Style.Language == FormatStyle::LK_ObjC &&
       Style.ObjCBreakBeforeNestedBlockParam &&
       Current.ObjCSelectorNameParts > 1 &&
-      Current.startsSequence(TT_SelectorName, tok::colon, tok::caret))
+      Current.startsSequence(TT_SelectorName, tok::colon, tok::caret)) {
     return true;
+  }
   // Avoid producing inconsistent states by requiring breaks where they are not
   // permitted for C# generic type constraints.
   if (CurrentState.IsCSharpGenericTypeConstraint &&
-      Previous.isNot(TT_CSharpGenericTypeConstraintComma))
+      Previous.isNot(TT_CSharpGenericTypeConstraintComma)) {
     return false;
+  }
   if ((startsNextParameter(Current, Style) || Previous.is(tok::semi) ||
        (Previous.is(TT_TemplateCloser) && Current.is(TT_StartOfName) &&
         Style.isCpp() &&
         // FIXME: This is a temporary workaround for the case where clang-format
         // sets BreakBeforeParameter to avoid bin packing and this creates a
         // completely unnecessary line break after a template type that isn't
         // line-wrapped.
         (Previous.NestingLevel == 1 || Style.BinPackParameters)) ||
        (Style.BreakBeforeTernaryOperators && Current.is(TT_ConditionalExpr) &&
         Previous.isNot(tok::question)) ||
        (!Style.BreakBeforeTernaryOperators &&
         Previous.is(TT_ConditionalExpr))) &&
       CurrentState.BreakBeforeParameter && !Current.isTrailingComment() &&
-      !Current.isOneOf(tok::r_paren, tok::r_brace))
+      !Current.isOneOf(tok::r_paren, tok::r_brace)) {
     return true;
+  }
   if (CurrentState.IsChainedConditional &&
       ((Style.BreakBeforeTernaryOperators && Current.is(TT_ConditionalExpr) &&
         Current.is(tok::colon)) ||
        (!Style.BreakBeforeTernaryOperators && Previous.is(TT_ConditionalExpr) &&
-        Previous.is(tok::colon))))
+        Previous.is(tok::colon)))) {
     return true;
+  }
   if (((Previous.is(TT_DictLiteral) && Previous.is(tok::l_brace)) ||
        (Previous.is(TT_ArrayInitializerLSquare) &&
         Previous.ParameterCount > 1) ||
        opensProtoMessageField(Previous, Style)) &&
       Style.ColumnLimit > 0 &&
       getLengthToMatchingParen(Previous, State.Stack) + State.Column - 1 >
-          getColumnLimit(State))
+          getColumnLimit(State)) {
     return true;
+  }
 
   const FormatToken &BreakConstructorInitializersToken =
       Style.BreakConstructorInitializers == FormatStyle::BCIS_AfterColon
           ? Previous
           : Current;
   if (BreakConstructorInitializersToken.is(TT_CtorInitializerColon) &&
       (State.Column + State.Line->Last->TotalLength - Previous.TotalLength >
            getColumnLimit(State) ||
        CurrentState.BreakBeforeParameter) &&
       (Style.AllowShortFunctionsOnASingleLine != FormatStyle::SFS_All ||
        Style.BreakConstructorInitializers != FormatStyle::BCIS_BeforeColon ||
-       Style.ColumnLimit != 0))
+       Style.ColumnLimit != 0)) {
     return true;
+  }
 
   if (Current.is(TT_ObjCMethodExpr) && !Previous.is(TT_SelectorName) &&
-      State.Line->startsWith(TT_ObjCMethodSpecifier))
+      State.Line->startsWith(TT_ObjCMethodSpecifier)) {
     return true;
+  }
   if (Current.is(TT_SelectorName) && !Previous.is(tok::at) &&
       CurrentState.ObjCSelectorNameFound && CurrentState.BreakBeforeParameter &&
       (Style.ObjCBreakBeforeNestedBlockParam ||
-       !Current.startsSequence(TT_SelectorName, tok::colon, tok::caret)))
+       !Current.startsSequence(TT_SelectorName, tok::colon, tok::caret))) {
     return true;
+  }
 
   unsigned NewLineColumn = getNewLineColumn(State);
   if (Current.isMemberAccess() && Style.ColumnLimit != 0 &&
       State.Column + getLengthToNextOperator(Current) > Style.ColumnLimit &&
       (State.Column > NewLineColumn ||
-       Current.NestingLevel < State.StartOfLineLevel))
+       Current.NestingLevel < State.StartOfLineLevel)) {
     return true;
+  }
 
   if (startsSegmentOfBuilderTypeCall(Current) &&
       (CurrentState.CallContinuation != 0 ||
        CurrentState.BreakBeforeParameter) &&
       // JavaScript is treated different here as there is a frequent pattern:
       //   SomeFunction(function() {
       //     ...
       //   }.bind(...));
       // FIXME: We should find a more generic solution to this problem.
       !(State.Column <= NewLineColumn && Style.isJavaScript()) &&
-      !(Previous.closesScopeAfterBlock() && State.Column <= NewLineColumn))
+      !(Previous.closesScopeAfterBlock() && State.Column <= NewLineColumn)) {
     return true;
+  }
 
   // If the template declaration spans multiple lines, force wrap before the
   // function/class declaration
   if (Previous.ClosesTemplateDeclaration && CurrentState.BreakBeforeParameter &&
-      Current.CanBreakBefore)
+      Current.CanBreakBefore) {
     return true;
+  }
 
   if (!State.Line->First->is(tok::kw_enum) && State.Column <= NewLineColumn)
     return false;
 
   if (Style.AlwaysBreakBeforeMultilineStrings &&
       (NewLineColumn == State.FirstIndent + Style.ContinuationIndentWidth ||
        Previous.is(tok::comma) || Current.NestingLevel < 2) &&
       !Previous.isOneOf(tok::kw_return, tok::lessless, tok::at,
                         Keywords.kw_dollar) &&
       !Previous.isOneOf(TT_InlineASMColon, TT_ConditionalExpr) &&
-      nextIsMultilineString(State))
+      nextIsMultilineString(State)) {
     return true;
+  }
 
   // Using CanBreakBefore here and below takes care of the decision whether the
   // current style uses wrapping before or after operators for the given
   // operator.
   if (Previous.is(TT_BinaryOperator) && Current.CanBreakBefore) {
     const auto PreviousPrecedence = Previous.getPrecedence();
     if (PreviousPrecedence != prec::Assignment &&
         CurrentState.BreakBeforeParameter && !Current.isTrailingComment()) {
if (Previous.is(TT_BinaryOperator) && Current.CanBreakBefore) {
     }
   } else if (Current.is(TT_BinaryOperator) && Current.CanBreakBefore &&
              CurrentState.BreakBeforeParameter) {
     return true;
   }
 
   // Same as above, but for the first "<<" operator.
   if (Current.is(tok::lessless) && Current.isNot(TT_OverloadedOperator) &&
-      CurrentState.BreakBeforeParameter && CurrentState.FirstLessLess == 0)
+      CurrentState.BreakBeforeParameter && CurrentState.FirstLessLess == 0) {
     return true;
+  }
 
   if (Current.NestingLevel == 0 && !Current.isTrailingComment()) {
     // Always break after "template <...>"(*) and leading annotations. This is
     // only for cases where the entire line does not fit on a single line as a
     // different LineFormatter would be used otherwise.
     // *: Except when another option interferes with that, like concepts.
     if (Previous.ClosesTemplateDeclaration) {
       if (Current.is(tok::kw_concept)) {
if (Previous.ClosesTemplateDeclaration) {
           return false;
         default:
           return true;
         }
       }
       return Style.AlwaysBreakTemplateDeclarations != FormatStyle::BTDS_No;
     }
     if (Previous.is(TT_FunctionAnnotationRParen) &&
-        State.Line->Type != LT_PreprocessorDirective)
+        State.Line->Type != LT_PreprocessorDirective) {
       return true;
+    }
     if (Previous.is(TT_LeadingJavaAnnotation) && Current.isNot(tok::l_paren) &&
-        Current.isNot(TT_LeadingJavaAnnotation))
+        Current.isNot(TT_LeadingJavaAnnotation)) {
       return true;
     }
+  }
 
   if (Style.isJavaScript() && Previous.is(tok::r_paren) &&
       Previous.is(TT_JavaAnnotation)) {
     // Break after the closing parenthesis of TypeScript decorators before
     // functions, getters and setters.
     static const llvm::StringSet<> BreakBeforeDecoratedTokens = {"get", "set",
                                                                  "function"};
     if (BreakBeforeDecoratedTokens.contains(Current.TokenText))
       return true;
   }
 
   // If the return type spans multiple lines, wrap before the function name.
   if (((Current.is(TT_FunctionDeclarationName) &&
         // Don't break before a C# function when no break after return type
         (!Style.isCSharp() ||
          Style.AlwaysBreakAfterReturnType != FormatStyle::RTBS_None) &&
         // Don't always break between a JavaScript `function` and the function
         // name.
         !Style.isJavaScript()) ||
        (Current.is(tok::kw_operator) && !Previous.is(tok::coloncolon))) &&
-      !Previous.is(tok::kw_template) && CurrentState.BreakBeforeParameter)
+      !Previous.is(tok::kw_template) && CurrentState.BreakBeforeParameter) {
     return true;
+  }
 
   // The following could be precomputed as they do not depend on the state.
   // However, as they should take effect only if the UnwrappedLine does not fit
   // into the ColumnLimit, they are checked here in the ContinuationIndenter.
   if (Style.ColumnLimit != 0 && Previous.is(BK_Block) &&
-      Previous.is(tok::l_brace) && !Current.isOneOf(tok::r_brace, tok::comment))
+      Previous.is(tok::l_brace) &&
+      !Current.isOneOf(tok::r_brace, tok::comment)) {
     return true;
+  }
 
   if (Current.is(tok::lessless) &&
       ((Previous.is(tok::identifier) && Previous.TokenText == "endl") ||
        (Previous.Tok.isLiteral() && (Previous.TokenText.endswith("\\n\"") ||
-                                     Previous.TokenText == "\'\\n\'"))))
+                                     Previous.TokenText == "\'\\n\'")))) {
     return true;
+  }
 
   if (Previous.is(TT_BlockComment) && Previous.IsMultiline)
     return true;
 
   if (State.NoContinuation)
     return true;
 
   return false;
if (Style.IndentPPDirectives == FormatStyle::PPDIS_AfterHash &&
     // For preprocessor indent with tabs, State.Column will be 1 because of the
     // hash. This causes second-level indents onward to have an extra space
     // after the tabs. We avoid this misalignment by subtracting 1 from the
     // column value passed to replaceWhitespace().
     if (Style.UseTab != FormatStyle::UT_Never)
       PPColumnCorrection = -1;
   }
 
-  if (!DryRun)
+  if (!DryRun) {
     Whitespaces.replaceWhitespace(Current, /*Newlines=*/0, Spaces,
                                   State.Column + Spaces + PPColumnCorrection);
+  }
 
   // If "BreakBeforeInheritanceComma" mode, don't break within the inheritance
   // declaration unless there is multiple inheritance.
   if (Style.BreakInheritanceList == FormatStyle::BILS_BeforeComma &&
-      Current.is(TT_InheritanceColon))
+      Current.is(TT_InheritanceColon)) {
     CurrentState.NoLineBreak = true;
+  }
   if (Style.BreakInheritanceList == FormatStyle::BILS_AfterColon &&
-      Previous.is(TT_InheritanceColon))
+      Previous.is(TT_InheritanceColon)) {
     CurrentState.NoLineBreak = true;
+  }
 
   if (Current.is(TT_SelectorName) && !CurrentState.ObjCSelectorNameFound) {
     unsigned MinIndent = std::max(
         State.FirstIndent + Style.ContinuationIndentWidth, CurrentState.Indent);
     unsigned FirstColonPos = State.Column + Spaces + Current.ColumnWidth;
     if (Current.LongestObjCSelectorName == 0)
       CurrentState.AlignColons = false;
     else if (MinIndent + Current.LongestObjCSelectorName > FirstColonPos)
if ((Style.AlignAfterOpenBracket == FormatStyle::BAS_AlwaysBreak ||
       // Don't do this for simple (no expressions) one-argument function calls
       // as that feels like needlessly wasting whitespace, e.g.:
       //
       //   caaaaaaaaaaaall(
       //       caaaaaaaaaaaall(
       //           caaaaaaaaaaaall(
       //               caaaaaaaaaaaaaaaaaaaaaaall(aaaaaaaaaaaaaa, aaaaaaaaa))));
       Current.FakeLParens.size() > 0 &&
-      Current.FakeLParens.back() > prec::Unknown)
+      Current.FakeLParens.back() > prec::Unknown) {
     CurrentState.NoLineBreak = true;
+  }
   if (Previous.is(TT_TemplateString) && Previous.opensScope())
     CurrentState.NoLineBreak = true;
 
   if (Style.AlignAfterOpenBracket != FormatStyle::BAS_DontAlign &&
       !CurrentState.IsCSharpGenericTypeConstraint && Previous.opensScope() &&
       Previous.isNot(TT_ObjCMethodExpr) && Previous.isNot(TT_RequiresClause) &&
       (Current.isNot(TT_LineComment) || Previous.is(BK_BracedInit))) {
     CurrentState.Indent = State.Column + Spaces;
     CurrentState.IsAligned = true;
   }
   if (CurrentState.AvoidBinPacking && startsNextParameter(Current, Style))
     CurrentState.NoLineBreak = true;
   if (startsSegmentOfBuilderTypeCall(Current) &&
-      State.Column > getNewLineColumn(State))
+      State.Column > getNewLineColumn(State)) {
     CurrentState.ContainsUnwrappedBuilder = true;
+  }
 
   if (Current.is(TT_LambdaArrow) && Style.Language == FormatStyle::LK_Java)
     CurrentState.NoLineBreak = true;
   if (Current.isMemberAccess() && Previous.is(tok::r_paren) &&
       (Previous.MatchingParen &&
-       (Previous.TotalLength - Previous.MatchingParen->TotalLength > 10)))
+       (Previous.TotalLength - Previous.MatchingParen->TotalLength > 10))) {
     // If there is a function call with long parameters, break before trailing
     // calls. This prevents things like:
     //   EXPECT_CALL(SomeLongParameter).Times(
     //       2);
     // We don't want to do this for short parameters as they can just be
     // indexes.
     CurrentState.NoLineBreak = true;
+  }
 
   // Don't allow the RHS of an operator to be split over multiple lines unless
   // there is a line-break right after the operator.
   // Exclude relational operators, as there, it is always more desirable to
   // have the LHS 'left' of the RHS.
   const FormatToken *P = Current.getPreviousNonComment();
   if (!Current.is(tok::comment) && P &&
       (P->isOneOf(TT_BinaryOperator, tok::comma) ||
if (!Current.is(tok::comment) && P &&
     // Don't do this if there are only two operands. In these cases, there is
     // always a nice vertical separation between them and the extra line break
     // does not help.
     bool HasTwoOperands =
         P->OperatorIndex == 0 && !P->NextOperator && !P->is(TT_ConditionalExpr);
     if ((!BreakBeforeOperator &&
          !(HasTwoOperands &&
            Style.AlignOperands != FormatStyle::OAS_DontAlign)) ||
-        (!CurrentState.LastOperatorWrapped && BreakBeforeOperator))
+        (!CurrentState.LastOperatorWrapped && BreakBeforeOperator)) {
       CurrentState.NoLineBreakInOperand = true;
     }
+  }
 
   State.Column += Spaces;
   if (Current.isNot(tok::comment) && Previous.is(tok::l_paren) &&
       Previous.Previous &&
       (Previous.Previous->is(tok::kw_for) || Previous.Previous->isIf())) {
     // Treat the condition inside an if as if it was a second function
     // parameter, i.e. let nested calls have a continuation indent.
     CurrentState.LastSpace = State.Column;
if (Current.isNot(tok::comment) && Previous.is(tok::l_paren) &&
     // If a function has a trailing call, indent all parameters from the
     // opening parenthesis. This avoids confusing indents like:
     //   OuterFunction(InnerFunctionCall( // break
     //       ParameterToInnerFunction))   // break
     //       .SecondInnerFunctionCall();
     if (Previous.MatchingParen) {
       const FormatToken *Next = Previous.MatchingParen->getNextNonComment();
       if (Next && Next->isMemberAccess() && State.Stack.size() > 1 &&
-          State.Stack[State.Stack.size() - 2].CallContinuation == 0)
+          State.Stack[State.Stack.size() - 2].CallContinuation == 0) {
         CurrentState.LastSpace = State.Column;
       }
     }
   }
+}
 
 unsigned ContinuationIndenter::addTokenOnNewLine(LineState &State,
                                                  bool DryRun) {
   FormatToken &Current = *State.NextToken;
   assert(State.NextToken->Previous);
   const FormatToken &Previous = *State.NextToken->Previous;
   auto &CurrentState = State.Stack.back();
 
unsigned ContinuationIndenter::addTokenOnNewLine(LineState &State,
 
   Penalty += State.NextToken->SplitPenalty;
 
   // Breaking before the first "<<" is generally not desirable if the LHS is
   // short. Also always add the penalty if the LHS is split over multiple lines
   // to avoid unnecessary line breaks that just work around this penalty.
   if (NextNonComment->is(tok::lessless) && CurrentState.FirstLessLess == 0 &&
       (State.Column <= Style.ColumnLimit / 3 ||
-       CurrentState.BreakBeforeParameter))
+       CurrentState.BreakBeforeParameter)) {
     Penalty += Style.PenaltyBreakFirstLessLess;
+  }
 
   State.Column = getNewLineColumn(State);
 
   // Add Penalty proportional to amount of whitespace away from FirstColumn
   // This tends to penalize several lines that are far-right indented,
   // and prefers a line-break prior to such a block, e.g:
   //
   // Constructor() :
   //   member(value), looooooooooooooooong_member(
   //                      looooooooooong_call(param_1, param_2, param_3))
   // would then become
   // Constructor() :
   //   member(value),
   //   looooooooooooooooong_member(
   //       looooooooooong_call(param_1, param_2, param_3))
-  if (State.Column > State.FirstIndent)
+  if (State.Column > State.FirstIndent) {
     Penalty +=
         Style.PenaltyIndentedWhitespace * (State.Column - State.FirstIndent);
+  }
 
   // Indent nested blocks relative to this column, unless in a very specific
   // JavaScript special case where:
   //
   //   var loooooong_name =
   //       function() {
   //     // code
   //   }
   //
   // is common and should be formatted like a free-standing function. The same
   // goes for wrapping before the lambda return type arrow.
   if (!Current.is(TT_LambdaArrow) &&
       (!Style.isJavaScript() || Current.NestingLevel != 0 ||
        !PreviousNonComment || !PreviousNonComment->is(tok::equal) ||
-       !Current.isOneOf(Keywords.kw_async, Keywords.kw_function)))
+       !Current.isOneOf(Keywords.kw_async, Keywords.kw_function))) {
     CurrentState.NestedBlockIndent = State.Column;
+  }
 
   if (NextNonComment->isMemberAccess()) {
     if (CurrentState.CallContinuation == 0)
       CurrentState.CallContinuation = State.Column;
   } else if (NextNonComment->is(TT_SelectorName)) {
     if (!CurrentState.ObjCSelectorNameFound) {
       if (NextNonComment->LongestObjCSelectorName == 0) {
         CurrentState.AlignColons = false;
if (NextNonComment->isMemberAccess()) {
     // method expression, the block should be aligned to the line starting it,
     // e.g.:
     //   [aaaaaaaaaaaaaaa aaaaaaaaa: \\ break for some reason
     //                        ^(int *i) {
     //                            // ...
     //                        }];
     // Thus, we set LastSpace of the next higher NestingLevel, to which we move
     // when we consume all of the "}"'s FakeRParens at the "{".
-    if (State.Stack.size() > 1)
+    if (State.Stack.size() > 1) {
       State.Stack[State.Stack.size() - 2].LastSpace =
           std::max(CurrentState.LastSpace, CurrentState.Indent) +
           Style.ContinuationIndentWidth;
     }
+  }
 
   if ((PreviousNonComment &&
        PreviousNonComment->isOneOf(tok::comma, tok::semi) &&
        !CurrentState.AvoidBinPacking) ||
-      Previous.is(TT_BinaryOperator))
+      Previous.is(TT_BinaryOperator)) {
     CurrentState.BreakBeforeParameter = false;
+  }
   if (PreviousNonComment &&
       (PreviousNonComment->isOneOf(TT_TemplateCloser, TT_JavaAnnotation) ||
        PreviousNonComment->ClosesRequiresClause) &&
-      Current.NestingLevel == 0)
+      Current.NestingLevel == 0) {
     CurrentState.BreakBeforeParameter = false;
+  }
   if (NextNonComment->is(tok::question) ||
-      (PreviousNonComment && PreviousNonComment->is(tok::question)))
+      (PreviousNonComment && PreviousNonComment->is(tok::question))) {
     CurrentState.BreakBeforeParameter = true;
+  }
   if (Current.is(TT_BinaryOperator) && Current.CanBreakBefore)
     CurrentState.BreakBeforeParameter = false;
 
   if (!DryRun) {
     unsigned MaxEmptyLinesToKeep = Style.MaxEmptyLinesToKeep + 1;
     if (Current.is(tok::r_brace) && Current.MatchingParen &&
         // Only strip trailing empty lines for l_braces that have children, i.e.
         // for function expressions (lambdas, arrows, etc).
         !Current.MatchingParen->Children.empty()) {
       // lambdas and arrow functions are expressions, thus their r_brace is not
       // on its own line, and thus not covered by UnwrappedLineFormatter's logic
       // about removing empty lines on closing blocks. Special case them here.
       MaxEmptyLinesToKeep = 1;
     }
     unsigned Newlines =
         std::max(1u, std::min(Current.NewlinesBefore, MaxEmptyLinesToKeep));
     bool ContinuePPDirective =
         State.Line->InPPDirective && State.Line->Type != LT_ImportStatement;
     Whitespaces.replaceWhitespace(Current, Newlines, State.Column, State.Column,
                                   CurrentState.IsAligned, ContinuePPDirective);
   }
 
   if (!Current.isTrailingComment())
     CurrentState.LastSpace = State.Column;
-  if (Current.is(tok::lessless))
+  if (Current.is(tok::lessless)) {
     // If we are breaking before a "<<", we always want to indent relative to
     // RHS. This is necessary only for "<<", as we special-case it and don't
     // always indent relative to the RHS.
     CurrentState.LastSpace += 3; // 3 -> width of "<< ".
+  }
 
   State.StartOfLineLevel = Current.NestingLevel;
   State.LowestLevelOnLine = Current.NestingLevel;
 
   // Any break on this level means that the parent level has been broken
   // and we need to avoid bin packing there.
   bool NestedBlockSpecialCase =
       (!Style.isCpp() && Current.is(tok::r_brace) && State.Stack.size() > 1 &&
unsigned ContinuationIndenter::addTokenOnNewLine(LineState &State,
   if (PreviousNonComment &&
       !PreviousNonComment->isOneOf(tok::comma, tok::colon, tok::semi) &&
       ((PreviousNonComment->isNot(TT_TemplateCloser) &&
         !PreviousNonComment->ClosesRequiresClause) ||
        Current.NestingLevel != 0) &&
       !PreviousNonComment->isOneOf(
           TT_BinaryOperator, TT_FunctionAnnotationRParen, TT_JavaAnnotation,
           TT_LeadingJavaAnnotation) &&
-      Current.isNot(TT_BinaryOperator) && !PreviousNonComment->opensScope())
+      Current.isNot(TT_BinaryOperator) && !PreviousNonComment->opensScope()) {
     CurrentState.BreakBeforeParameter = true;
+  }
 
   // If we break after { or the [ of an array initializer, we should also break
   // before the corresponding } or ].
   if (PreviousNonComment &&
       (PreviousNonComment->isOneOf(tok::l_brace, TT_ArrayInitializerLSquare) ||
-       opensProtoMessageField(*PreviousNonComment, Style)))
+       opensProtoMessageField(*PreviousNonComment, Style))) {
     CurrentState.BreakBeforeClosingBrace = true;
+  }
 
-  if (PreviousNonComment && PreviousNonComment->is(tok::l_paren))
+  if (PreviousNonComment && PreviousNonComment->is(tok::l_paren)) {
     CurrentState.BreakBeforeClosingParen =
         Style.AlignAfterOpenBracket == FormatStyle::BAS_BlockIndent;
+  }
 
   if (CurrentState.AvoidBinPacking) {
     // If we are breaking after '(', '{', '<', or this is the break after a ':'
     // to start a member initializater list in a constructor, this should not
     // be considered bin packing unless the relevant AllowAll option is false or
     // this is a dict/object literal.
     bool PreviousIsBreakingCtorInitializerColon =
         Previous.is(TT_CtorInitializerColon) &&
         Style.BreakConstructorInitializers == FormatStyle::BCIS_AfterColon;
     if (!(Previous.isOneOf(tok::l_paren, tok::l_brace, TT_BinaryOperator) ||
           PreviousIsBreakingCtorInitializerColon) ||
         (!Style.AllowAllParametersOfDeclarationOnNextLine &&
          State.Line->MustBeDeclaration) ||
         (!Style.AllowAllArgumentsOnNextLine &&
          !State.Line->MustBeDeclaration) ||
         (Style.PackConstructorInitializers != FormatStyle::PCIS_NextLine &&
          PreviousIsBreakingCtorInitializerColon) ||
-        Previous.is(TT_DictLiteral))
+        Previous.is(TT_DictLiteral)) {
       CurrentState.BreakBeforeParameter = true;
+    }
 
     // If we are breaking after a ':' to start a member initializer list,
     // and we allow all arguments on the next line, we should not break
     // before the next parameter.
     if (PreviousIsBreakingCtorInitializerColon &&
-        Style.PackConstructorInitializers == FormatStyle::PCIS_NextLine)
+        Style.PackConstructorInitializers == FormatStyle::PCIS_NextLine) {
       CurrentState.BreakBeforeParameter = false;
     }
+  }
 
   return Penalty;
 }
 
 unsigned ContinuationIndenter::getNewLineColumn(const LineState &State) {
   if (!State.NextToken || !State.NextToken->Previous)
     return 0;
 
   FormatToken &Current = *State.NextToken;
   const auto &CurrentState = State.Stack.back();
 
   if (CurrentState.IsCSharpGenericTypeConstraint &&
-      Current.isNot(TT_CSharpGenericTypeConstraint))
+      Current.isNot(TT_CSharpGenericTypeConstraint)) {
     return CurrentState.ColonPos + 2;
+  }
 
   const FormatToken &Previous = *Current.Previous;
   // If we are continuing an expression, we want to use the continuation indent.
   unsigned ContinuationIndent =
       std::max(CurrentState.LastSpace, CurrentState.Indent) +
       Style.ContinuationIndentWidth;
   const FormatToken *PreviousNonComment = Current.getPreviousNonComment();
   const FormatToken *NextNonComment = Previous.getNextNonComment();
   if (!NextNonComment)
     NextNonComment = &Current;
 
   // Java specific bits.
   if (Style.Language == FormatStyle::LK_Java &&
-      Current.isOneOf(Keywords.kw_implements, Keywords.kw_extends))
+      Current.isOneOf(Keywords.kw_implements, Keywords.kw_extends)) {
     return std::max(CurrentState.LastSpace,
                     CurrentState.Indent + Style.ContinuationIndentWidth);
+  }
 
   if (Style.BreakBeforeBraces == FormatStyle::BS_Whitesmiths &&
-      State.Line->First->is(tok::kw_enum))
+      State.Line->First->is(tok::kw_enum)) {
     return (Style.IndentWidth * State.Line->First->IndentLevel) +
            Style.IndentWidth;
+  }
 
   if (NextNonComment->is(tok::l_brace) && NextNonComment->is(BK_Block))
     return Current.NestingLevel == 0 ? State.FirstIndent : CurrentState.Indent;
   if ((Current.isOneOf(tok::r_brace, tok::r_square) ||
        (Current.is(tok::greater) &&
         (Style.Language == FormatStyle::LK_Proto ||
          Style.Language == FormatStyle::LK_TextProto))) &&
       State.Stack.size() > 1) {
unsigned ContinuationIndenter::getNewLineColumn(const LineState &State) {
   //     }
   //     function foo(
   //       a,
   //     ) {
   //       code(); //
   //     }
   if (Current.is(tok::r_paren) && State.Stack.size() > 1 &&
       (!Current.Next ||
-       Current.Next->isOneOf(tok::semi, tok::kw_const, tok::l_brace)))
+       Current.Next->isOneOf(tok::semi, tok::kw_const, tok::l_brace))) {
     return State.Stack[State.Stack.size() - 2].LastSpace;
+  }
   if (Style.AlignAfterOpenBracket == FormatStyle::BAS_BlockIndent &&
-      Current.is(tok::r_paren) && State.Stack.size() > 1)
+      Current.is(tok::r_paren) && State.Stack.size() > 1) {
     return State.Stack[State.Stack.size() - 2].LastSpace;
+  }
   if (NextNonComment->is(TT_TemplateString) && NextNonComment->closesScope())
     return State.Stack[State.Stack.size() - 2].LastSpace;
   if (Current.is(tok::identifier) && Current.Next &&
       (Current.Next->is(TT_DictLiteral) ||
        ((Style.Language == FormatStyle::LK_Proto ||
          Style.Language == FormatStyle::LK_TextProto) &&
-        Current.Next->isOneOf(tok::less, tok::l_brace))))
+        Current.Next->isOneOf(tok::less, tok::l_brace)))) {
     return CurrentState.Indent;
+  }
   if (NextNonComment->is(TT_ObjCStringLiteral) &&
-      State.StartOfStringLiteral != 0)
+      State.StartOfStringLiteral != 0) {
     return State.StartOfStringLiteral - 1;
+  }
   if (NextNonComment->isStringLiteral() && State.StartOfStringLiteral != 0)
     return State.StartOfStringLiteral;
   if (NextNonComment->is(tok::lessless) && CurrentState.FirstLessLess != 0)
     return CurrentState.FirstLessLess;
   if (NextNonComment->isMemberAccess()) {
     if (CurrentState.CallContinuation == 0)
       return ContinuationIndent;
     return CurrentState.CallContinuation;
unsigned ContinuationIndenter::getNewLineColumn(const LineState &State) {
   }
   if ((PreviousNonComment &&
        (PreviousNonComment->ClosesTemplateDeclaration ||
         PreviousNonComment->ClosesRequiresClause ||
         PreviousNonComment->isOneOf(
             TT_AttributeParen, TT_AttributeSquare, TT_FunctionAnnotationRParen,
             TT_JavaAnnotation, TT_LeadingJavaAnnotation))) ||
       (!Style.IndentWrappedFunctionNames &&
-       NextNonComment->isOneOf(tok::kw_operator, TT_FunctionDeclarationName)))
+       NextNonComment->isOneOf(tok::kw_operator, TT_FunctionDeclarationName))) {
     return std::max(CurrentState.LastSpace, CurrentState.Indent);
+  }
   if (NextNonComment->is(TT_SelectorName)) {
     if (!CurrentState.ObjCSelectorNameFound) {
       unsigned MinIndent = CurrentState.Indent;
-      if (shouldIndentWrappedSelectorName(Style, State.Line->Type))
+      if (shouldIndentWrappedSelectorName(Style, State.Line->Type)) {
         MinIndent = std::max(MinIndent,
                              State.FirstIndent + Style.ContinuationIndentWidth);
+      }
       // If LongestObjCSelectorName is 0, we are indenting the first
       // part of an ObjC selector (or a selector component which is
       // not colon-aligned due to block formatting).
       //
       // Otherwise, we are indenting a subsequent part of an ObjC
       // selector which should be colon-aligned to the longest
       // component of the ObjC selector.
       //
       // In either case, we want to respect Style.IndentWrappedFunctionNames.
       return MinIndent +
              std::max(NextNonComment->LongestObjCSelectorName,
                       NextNonComment->ColumnWidth) -
              NextNonComment->ColumnWidth;
     }
     if (!CurrentState.AlignColons)
       return CurrentState.Indent;
     if (CurrentState.ColonPos > NextNonComment->ColumnWidth)
       return CurrentState.ColonPos - NextNonComment->ColumnWidth;
     return CurrentState.Indent;
   }
   if (NextNonComment->is(tok::colon) && NextNonComment->is(TT_ObjCMethodExpr))
     return CurrentState.ColonPos;
   if (NextNonComment->is(TT_ArraySubscriptLSquare)) {
-    if (CurrentState.StartOfArraySubscripts != 0)
+    if (CurrentState.StartOfArraySubscripts != 0) {
       return CurrentState.StartOfArraySubscripts;
-    else if (Style.isCSharp()) // C# allows `["key"] = value` inside object
+    } else if (Style.isCSharp()) { // C# allows `["key"] = value` inside object
                                    // initializers.
       return CurrentState.Indent;
+    }
     return ContinuationIndent;
   }
 
   // This ensure that we correctly format ObjC methods calls without inputs,
   // i.e. where the last element isn't selector like: [callee method];
   if (NextNonComment->is(tok::identifier) && NextNonComment->FakeRParens == 0 &&
-      NextNonComment->Next && NextNonComment->Next->is(TT_ObjCMethodExpr))
+      NextNonComment->Next && NextNonComment->Next->is(TT_ObjCMethodExpr)) {
     return CurrentState.Indent;
+  }
 
   if (NextNonComment->isOneOf(TT_StartOfName, TT_PointerOrReference) ||
-      Previous.isOneOf(tok::coloncolon, tok::equal, TT_JsTypeColon))
+      Previous.isOneOf(tok::coloncolon, tok::equal, TT_JsTypeColon)) {
     return ContinuationIndent;
+  }
   if (PreviousNonComment && PreviousNonComment->is(tok::colon) &&
-      PreviousNonComment->isOneOf(TT_ObjCMethodExpr, TT_DictLiteral))
+      PreviousNonComment->isOneOf(TT_ObjCMethodExpr, TT_DictLiteral)) {
     return ContinuationIndent;
+  }
   if (NextNonComment->is(TT_CtorInitializerComma))
     return CurrentState.Indent;
   if (PreviousNonComment && PreviousNonComment->is(TT_CtorInitializerColon) &&
-      Style.BreakConstructorInitializers == FormatStyle::BCIS_AfterColon)
+      Style.BreakConstructorInitializers == FormatStyle::BCIS_AfterColon) {
     return CurrentState.Indent;
+  }
   if (PreviousNonComment && PreviousNonComment->is(TT_InheritanceColon) &&
-      Style.BreakInheritanceList == FormatStyle::BILS_AfterColon)
+      Style.BreakInheritanceList == FormatStyle::BILS_AfterColon) {
     return CurrentState.Indent;
+  }
   if (NextNonComment->isOneOf(TT_CtorInitializerColon, TT_InheritanceColon,
-                              TT_InheritanceComma))
+                              TT_InheritanceComma)) {
     return State.FirstIndent + Style.ConstructorInitializerIndentWidth;
+  }
   if (Previous.is(tok::r_paren) && !Current.isBinaryOperator() &&
-      !Current.isOneOf(tok::colon, tok::comment))
+      !Current.isOneOf(tok::colon, tok::comment)) {
     return ContinuationIndent;
+  }
   if (Current.is(TT_ProtoExtensionLSquare))
     return CurrentState.Indent;
-  if (Current.isBinaryOperator() && CurrentState.UnindentOperator)
+  if (Current.isBinaryOperator() && CurrentState.UnindentOperator) {
     return CurrentState.Indent - Current.Tok.getLength() -
            Current.SpacesRequiredBefore;
+  }
   if (Current.isOneOf(tok::comment, TT_BlockComment, TT_LineComment) &&
-      NextNonComment->isBinaryOperator() && CurrentState.UnindentOperator)
+      NextNonComment->isBinaryOperator() && CurrentState.UnindentOperator) {
     return CurrentState.Indent - NextNonComment->Tok.getLength() -
            NextNonComment->SpacesRequiredBefore;
+  }
   if (CurrentState.Indent == State.FirstIndent && PreviousNonComment &&
-      !PreviousNonComment->isOneOf(tok::r_brace, TT_CtorInitializerComma))
+      !PreviousNonComment->isOneOf(tok::r_brace, TT_CtorInitializerComma)) {
     // Ensure that we fall back to the continuation indent width instead of
     // just flushing continuations left.
     return CurrentState.Indent + Style.ContinuationIndentWidth;
+  }
   return CurrentState.Indent;
 }
 
 static bool hasNestedBlockInlined(const FormatToken *Previous,
                                   const FormatToken &Current,
                                   const FormatStyle &Style) {
   if (Previous->isNot(tok::l_paren))
     return true;
if (Current.is(tok::lessless) && Current.isNot(TT_OverloadedOperator)) {
     if (CurrentState.FirstLessLess == 0)
       CurrentState.FirstLessLess = State.Column;
     else
       CurrentState.LastOperatorWrapped = Newline;
   }
   if (Current.is(TT_BinaryOperator) && Current.isNot(tok::lessless))
     CurrentState.LastOperatorWrapped = Newline;
   if (Current.is(TT_ConditionalExpr) && Current.Previous &&
-      !Current.Previous->is(TT_ConditionalExpr))
+      !Current.Previous->is(TT_ConditionalExpr)) {
     CurrentState.LastOperatorWrapped = Newline;
+  }
   if (Current.is(TT_ArraySubscriptLSquare) &&
-      CurrentState.StartOfArraySubscripts == 0)
+      CurrentState.StartOfArraySubscripts == 0) {
     CurrentState.StartOfArraySubscripts = State.Column;
+  }
 
   auto IsWrappedConditional = [](const FormatToken &Tok) {
     if (!(Tok.is(TT_ConditionalExpr) && Tok.is(tok::question)))
       return false;
     if (Tok.MustBreakBefore)
       return true;
 
     const FormatToken *Next = Tok.getNextNonComment();
     return Next && Next->MustBreakBefore;
   };
   if (IsWrappedConditional(Current))
     CurrentState.IsWrappedConditional = true;
   if (Style.BreakBeforeTernaryOperators && Current.is(tok::question))
     CurrentState.QuestionColumn = State.Column;
   if (!Style.BreakBeforeTernaryOperators && Current.isNot(tok::colon)) {
     const FormatToken *Previous = Current.Previous;
     while (Previous && Previous->isTrailingComment())
       Previous = Previous->Previous;
     if (Previous && Previous->is(tok::question))
       CurrentState.QuestionColumn = State.Column;
   }
   if (!Current.opensScope() && !Current.closesScope() &&
-      !Current.is(TT_PointerOrReference))
+      !Current.is(TT_PointerOrReference)) {
     State.LowestLevelOnLine =
         std::min(State.LowestLevelOnLine, Current.NestingLevel);
+  }
   if (Current.isMemberAccess())
     CurrentState.StartOfFunctionCall = !Current.NextOperator ? 0 : State.Column;
   if (Current.is(TT_SelectorName))
     CurrentState.ObjCSelectorNameFound = true;
   if (Current.is(TT_CtorInitializerColon) &&
       Style.BreakConstructorInitializers != FormatStyle::BCIS_AfterColon) {
     // Indent 2 from the column, so:
     // SomeClass::SomeClass()
unsigned ContinuationIndenter::moveStateToNextToken(LineState &State,
   if (Current.is(TT_CtorInitializerColon) &&
       Style.BreakConstructorInitializers == FormatStyle::BCIS_AfterColon) {
     CurrentState.Indent =
         State.FirstIndent + Style.ConstructorInitializerIndentWidth;
     CurrentState.NestedBlockIndent = CurrentState.Indent;
     if (Style.PackConstructorInitializers > FormatStyle::PCIS_BinPack)
       CurrentState.AvoidBinPacking = true;
   }
-  if (Current.is(TT_InheritanceColon))
+  if (Current.is(TT_InheritanceColon)) {
     CurrentState.Indent =
         State.FirstIndent + Style.ConstructorInitializerIndentWidth;
+  }
   if (Current.isOneOf(TT_BinaryOperator, TT_ConditionalExpr) && Newline)
     CurrentState.NestedBlockIndent = State.Column + Current.ColumnWidth + 1;
   if (Current.isOneOf(TT_LambdaLSquare, TT_LambdaArrow))
     CurrentState.LastSpace = State.Column;
   if (Current.is(TT_RequiresExpression))
     CurrentState.NestedBlockIndent = State.Column;
 
   // Insert scopes created by fake parenthesis.
unsigned ContinuationIndenter::moveStateToNextToken(LineState &State,
   // Stack.
   bool AllowBreak = !State.Stack.back().NoLineBreak &&
                     !State.Stack.back().NoLineBreakInOperand;
   moveStatePastScopeOpener(State, Newline);
   moveStatePastFakeRParens(State);
 
   if (Current.is(TT_ObjCStringLiteral) && State.StartOfStringLiteral == 0)
     State.StartOfStringLiteral = State.Column + 1;
-  if (Current.is(TT_CSharpStringLiteral) && State.StartOfStringLiteral == 0)
+  if (Current.is(TT_CSharpStringLiteral) && State.StartOfStringLiteral == 0) {
     State.StartOfStringLiteral = State.Column + 1;
-  else if (Current.isStringLiteral() && State.StartOfStringLiteral == 0)
+  } else if (Current.isStringLiteral() && State.StartOfStringLiteral == 0) {
     State.StartOfStringLiteral = State.Column;
-  else if (!Current.isOneOf(tok::comment, tok::identifier, tok::hash) &&
-           !Current.isStringLiteral())
+  } else if (!Current.isOneOf(tok::comment, tok::identifier, tok::hash) &&
+             !Current.isStringLiteral()) {
     State.StartOfStringLiteral = 0;
+  }
 
   State.Column += Current.ColumnWidth;
   State.NextToken = State.NextToken->Next;
 
   unsigned Penalty =
       handleEndOfLine(Current, State, DryRun, AllowBreak, Newline);
 
   if (Current.Role)
for (const auto &PrecedenceLevel : llvm::reverse(Current.FakeLParens)) {
     // This is a special case to make the following to statements consistent:
     //   OuterFunction(InnerFunctionCall( // break
     //       ParameterToInnerFunction));
     //   OuterFunction(SomeObject.InnerFunctionCall( // break
     //       ParameterToInnerFunction));
     if (PrecedenceLevel > prec::Unknown)
       NewParenState.LastSpace = std::max(NewParenState.LastSpace, State.Column);
     if (PrecedenceLevel != prec::Conditional && !Current.is(TT_UnaryOperator) &&
-        Style.AlignAfterOpenBracket != FormatStyle::BAS_DontAlign)
+        Style.AlignAfterOpenBracket != FormatStyle::BAS_DontAlign) {
       NewParenState.StartOfFunctionCall = State.Column;
+    }
 
     // Indent conditional expressions, unless they are chained "else-if"
     // conditionals. Never indent expression where the 'operator' is ',', ';' or
     // an assignment (i.e. *I <= prec::Assignment) as those have different
     // indentation rules. Indent other expression, unless the indentation needs
     // to be skipped.
     if (PrecedenceLevel == prec::Conditional && Previous &&
         Previous->is(tok::colon) && Previous->is(TT_ConditionalExpr) &&
void ContinuationIndenter::moveStatePastScopeOpener(LineState &State,
   const FormatToken &Current = *State.NextToken;
   if (!Current.opensScope())
     return;
 
   const auto &CurrentState = State.Stack.back();
 
   // Don't allow '<' or '(' in C# generic type constraints to start new scopes.
   if (Current.isOneOf(tok::less, tok::l_paren) &&
-      CurrentState.IsCSharpGenericTypeConstraint)
+      CurrentState.IsCSharpGenericTypeConstraint) {
     return;
+  }
 
   if (Current.MatchingParen && Current.is(BK_Block)) {
     moveStateToNewBlock(State);
     return;
   }
 
   unsigned NewIndent;
   unsigned LastSpace = CurrentState.LastSpace;
AvoidBinPacking =
           (!BinPackInconclusiveFunctions && Current.is(PPK_Inconclusive))));
 
     if (Current.is(TT_ObjCMethodExpr) && Current.MatchingParen &&
         Style.ObjCBreakBeforeNestedBlockParam) {
       if (Style.ColumnLimit) {
         // If this '[' opens an ObjC call, determine whether all parameters fit
         // into one line and put one per line if they don't.
         if (getLengthToMatchingParen(Current, State.Stack) + State.Column >
-            getColumnLimit(State))
+            getColumnLimit(State)) {
           BreakBeforeParameter = true;
+        }
       } else {
         // For ColumnLimit = 0, we have to figure out whether there is or has to
         // be a line break within this call.
         for (const FormatToken *Tok = &Current;
              Tok && Tok != Current.MatchingParen; Tok = Tok->Next) {
           if (Tok->MustBreakBefore ||
               (Tok->CanBreakBefore && Tok->NewlinesBefore > 0)) {
             BreakBeforeParameter = true;
if (!Current.closesScope())
     return;
 
   // If we encounter a closing ), ], } or >, we can remove a level from our
   // stacks.
   if (State.Stack.size() > 1 &&
       (Current.isOneOf(tok::r_paren, tok::r_square, TT_TemplateString) ||
        (Current.is(tok::r_brace) && State.NextToken != State.Line->First) ||
        State.NextToken->is(TT_TemplateCloser) ||
-       (Current.is(tok::greater) && Current.is(TT_DictLiteral))))
+       (Current.is(tok::greater) && Current.is(TT_DictLiteral)))) {
     State.Stack.pop_back();
+  }
 
   auto &CurrentState = State.Stack.back();
 
   // Reevaluate whether ObjC message arguments fit into one line.
   // If a receiver spans multiple lines, e.g.:
   //   [[object block:^{
   //     return 42;
   //   }] a:42 b:42];
   // BreakBeforeParameter is calculated based on an incorrect assumption
   // (it is checked whether the whole expression fits into one line without
   // considering a line break inside a message receiver).
   // We check whether arguments fit after receiver scope closer (into the same
   // line).
   if (CurrentState.BreakBeforeParameter && Current.MatchingParen &&
       Current.MatchingParen->Previous) {
     const FormatToken &CurrentScopeOpener = *Current.MatchingParen->Previous;
     if (CurrentScopeOpener.is(TT_ObjCMethodExpr) &&
         CurrentScopeOpener.MatchingParen) {
       int NecessarySpaceInLine =
           getLengthToMatchingParen(CurrentScopeOpener, State.Stack) +
           CurrentScopeOpener.TotalLength - Current.TotalLength - 1;
       if (State.Column + Current.ColumnWidth + NecessarySpaceInLine <=
-          Style.ColumnLimit)
+          Style.ColumnLimit) {
         CurrentState.BreakBeforeParameter = false;
       }
     }
+  }
 
   if (Current.is(tok::r_square)) {
     // If this ends the array subscript expr, reset the corresponding value.
     const FormatToken *NextNonComment = Current.getNextNonComment();
     if (NextNonComment && NextNonComment->isNot(tok::l_square))
       CurrentState.StartOfArraySubscripts = 0;
   }
 }

 ContinuationIndenter::getRawStringStyle(const FormatToken &Current,
                                         const LineState &State) {
   if (!Current.isStringLiteral())
     return None;
   auto Delimiter = getRawStringDelimiter(Current.TokenText);
   if (!Delimiter)
     return None;
   auto RawStringStyle = RawStringFormats.getDelimiterStyle(*Delimiter);
-  if (!RawStringStyle && Delimiter->empty())
+  if (!RawStringStyle && Delimiter->empty()) {
     RawStringStyle = RawStringFormats.getEnclosingFunctionStyle(
         getEnclosingFunctionName(Current));
+  }
   if (!RawStringStyle)
     return None;
   RawStringStyle->ColumnLimit = getColumnLimit(State);
   return RawStringStyle;
 }
 
 std::unique_ptr<BreakableToken>
 ContinuationIndenter::createBreakableToken(const FormatToken &Current,
                                            LineState &State, bool AllowBreak) {
   unsigned StartColumn = State.Column - Current.ColumnWidth;
   if (Current.isStringLiteral()) {
     // FIXME: String literal breaking is currently disabled for C#, Java, Json
     // and JavaScript, as it requires strings to be merged using "+" which we
     // don't support.
     if (Style.Language == FormatStyle::LK_Java || Style.isJavaScript() ||
         Style.isCSharp() || Style.isJson() || !Style.BreakStringLiterals ||
-        !AllowBreak)
+        !AllowBreak) {
       return nullptr;
+    }
 
     // Don't break string literals inside preprocessor directives (except for
     // #define directives, as their contents are stored in separate lines and
     // are not affected by this check).
     // This way we avoid breaking code with line directives and unknown
     // preprocessor directives that contain long string literals.
     if (State.Line->Type == LT_PreprocessorDirective)
       return nullptr;
if ((Text.endswith(Postfix = "\"") &&
           Current, StartColumn, Prefix, Postfix, UnbreakableTailLength,
           State.Line->InPPDirective, Encoding, Style);
     }
   } else if (Current.is(TT_BlockComment)) {
     if (!Style.ReflowComments ||
         // If a comment token switches formatting, like
         // /* clang-format on */, we don't want to break it further,
         // but we may still want to adjust its indentation.
-        switchesFormatting(Current))
+        switchesFormatting(Current)) {
       return nullptr;
+    }
     return std::make_unique<BreakableBlockComment>(
         Current, StartColumn, Current.OriginalColumn, !Current.Previous,
         State.Line->InPPDirective, Encoding, Style, Whitespaces.useCRLF());
   } else if (Current.is(TT_LineComment) &&
              (Current.Previous == nullptr ||
               Current.Previous->isNot(TT_ImplicitStringLiteral))) {
     bool RegularComments = [&]() {
       for (const FormatToken *T = &Current; T && T->is(TT_LineComment);
-           T = T->Next)
+           T = T->Next) {
         if (!(T->TokenText.startswith("//") || T->TokenText.startswith("#")))
           return false;
+      }
       return true;
     }();
     if (!Style.ReflowComments ||
         CommentPragmasRegex.match(Current.TokenText.substr(2)) ||
-        switchesFormatting(Current) || !RegularComments)
+        switchesFormatting(Current) || !RegularComments) {
       return nullptr;
+    }
     return std::make_unique<BreakableLineCommentSection>(
         Current, StartColumn, /*InPPDirective=*/false, Encoding, Style);
   }
   return nullptr;
 }
 
 std::pair<unsigned, bool>
 ContinuationIndenter::breakProtrudingToken(const FormatToken &Current,
while (ContentStartColumn + RemainingTokenColumns > ColumnLimit) {
       // FIXME: Use the earliest possible split while reflowing to correctly
       // compress whitespace within a line.
       BreakableToken::Split Split =
           Token->getSplit(LineIndex, TailOffset, ColumnLimit,
                           ContentStartColumn, CommentPragmasRegex);
       if (Split.first == StringRef::npos) {
         // No break opportunity - update the penalty and continue with the next
         // logical line.
-        if (LineIndex < EndIndex - 1)
+        if (LineIndex < EndIndex - 1) {
           // The last line's penalty is handled in addNextStateToQueue() or when
           // calling replaceWhitespaceAfterLastLine below.
           Penalty += Style.PenaltyExcessCharacter *
                      (ContentStartColumn + RemainingTokenColumns - ColumnLimit);
+        }
         LLVM_DEBUG(llvm::dbgs() << "    No break opportunity.\n");
         break;
       }
       assert(Split.first != 0);
 
       if (Token->supportsReflow()) {
         // Check whether the next natural split point after the current one can
         // still fit the line, either because we can compress away whitespace,
while (ContentStartColumn + RemainingTokenColumns > ColumnLimit) {
             ContinueOnLine = true;
           }
         }
         if (ContinueOnLine) {
           LLVM_DEBUG(llvm::dbgs() << "    Continuing on line...\n");
           // The current line fits after compressing the whitespace - reflow
           // the next line into it if possible.
           TryReflow = true;
-          if (!DryRun)
+          if (!DryRun) {
             Token->compressWhitespace(LineIndex, TailOffset, Split,
                                       Whitespaces);
+          }
           // When we continue on the same line, leave one space between content.
           ContentStartColumn += ToSplitColumns + 1;
           Penalty += ExcessCharactersPenalty;
           TailOffset += Split.first + Split.second;
           RemainingTokenColumns = Token->getRemainingLength(
               LineIndex, TailOffset, ContentStartColumn);
           continue;
         }
while (ContentStartColumn + RemainingTokenColumns > ColumnLimit) {
       // columns.
       if (NewRemainingTokenColumns >= RemainingTokenColumns) {
         // FIXME: Do we need to adjust the penalty?
         break;
       }
 
       LLVM_DEBUG(llvm::dbgs() << "    Breaking at: " << TailOffset + Split.first
                               << ", " << Split.second << "\n");
-      if (!DryRun)
+      if (!DryRun) {
         Token->insertBreak(LineIndex, TailOffset, Split, ContentIndent,
                            Whitespaces);
+      }
 
       Penalty += NewBreakPenalty;
       TailOffset += Split.first + Split.second;
       RemainingTokenColumns = NewRemainingTokenColumns;
       BreakInserted = true;
       NewBreakBefore = true;
     }
     // In case there's another line, prepare the state for the start of the next
     // line.
     if (LineIndex + 1 != EndIndex) {
       unsigned NextLineIndex = LineIndex + 1;
-      if (NewBreakBefore)
+      if (NewBreakBefore) {
         // After breaking a line, try to reflow the next line into the current
         // one once RemainingTokenColumns fits.
         TryReflow = true;
+      }
       if (TryReflow) {
         // We decided that we want to try reflowing the next line into the
         // current one.
         // We will now adjust the state as if the reflow is successful (in
         // preparation for the next line), and see whether that works. If we
         // decide that we cannot reflow, we will later reset the state to the
         // start of the next line.
         Reflow = false;
ContinuationIndenter::breakProtrudingToken(const FormatToken &Current,
   if (SplitAfterLastLine.first != StringRef::npos) {
     LLVM_DEBUG(llvm::dbgs() << "Replacing whitespace after last line.\n");
 
     // We add the last line's penalty here, since that line is going to be split
     // now.
     Penalty += Style.PenaltyExcessCharacter *
                (ContentStartColumn + RemainingTokenColumns - ColumnLimit);
 
-    if (!DryRun)
+    if (!DryRun) {
       Token->replaceWhitespaceAfterLastLine(TailOffset, SplitAfterLastLine,
                                             Whitespaces);
+    }
     ContentStartColumn =
         Token->getContentStartColumn(Token->getLineCount() - 1, /*Break=*/true);
     RemainingTokenColumns = Token->getRemainingLength(
         Token->getLineCount() - 1,
         TailOffset + SplitAfterLastLine.first + SplitAfterLastLine.second,
         ContentStartColumn);
   }
 
bool ContinuationIndenter::nextIsMultilineString(const LineState &State) {
   // We never consider raw string literals "multiline" for the purpose of
   // AlwaysBreakBeforeMultilineStrings implementation as they are special-cased
   // (see TokenAnnotator::mustBreakBefore().
   if (Current.TokenText.startswith("R\""))
     return false;
   if (Current.IsMultiline)
     return true;
   if (Current.getNextNonComment() &&
-      Current.getNextNonComment()->isStringLiteral())
+      Current.getNextNonComment()->isStringLiteral()) {
     return true; // Implicit concatenation.
+  }
   if (Style.ColumnLimit != 0 && Style.BreakStringLiterals &&
       State.Column + Current.ColumnWidth + Current.UnbreakableTailLength >
-          Style.ColumnLimit)
+          Style.ColumnLimit) {
     return true; // String will be split.
+  }
   return false;
 }
 
 } // namespace format
 } // namespace clang

clang/lib/Format/DefinitionBlockSeparator.cpp

if (Tok->isOneOf(tok::l_brace, tok::l_paren, tok::l_square))
       return 1;
     if (Tok->isOneOf(tok::r_brace, tok::r_paren, tok::r_square))
       return -1;
     return 0;
   };
   auto LikelyDefinition = [&](const AnnotatedLine *Line,
                               bool ExcludeEnum = false) {
     if ((Line->MightBeFunctionDecl && Line->mightBeFunctionDefinition()) ||
-        Line->startsWithNamespace())
+        Line->startsWithNamespace()) {
       return true;
+    }
     int BracketLevel = 0;
     for (const FormatToken *CurrentToken = Line->First; CurrentToken;
          CurrentToken = CurrentToken->Next) {
       if (BracketLevel == 0) {
         if ((CurrentToken->isOneOf(tok::kw_class, tok::kw_struct,
                                    tok::kw_union) ||
              (Style.isJavaScript() &&
-              CurrentToken->is(ExtraKeywords.kw_function))))
+              CurrentToken->is(ExtraKeywords.kw_function)))) {
           return true;
+        }
         if (!ExcludeEnum && CurrentToken->is(tok::kw_enum))
           return true;
       }
       BracketLevel += GetBracketLevelChange(CurrentToken);
     }
     return false;
   };
   unsigned NewlineCount =
const auto InsertReplacement = [&](const int NewlineToInsert) {
       assert(TargetLine);
       assert(TargetToken);
 
       // Do not handle EOF newlines.
       if (TargetToken->is(tok::eof))
         return;
       if (IsAccessSpecifierToken(TargetToken) ||
           (OpeningLineIndex > 0 &&
-           IsAccessSpecifierToken(Lines[OpeningLineIndex - 1]->First)))
+           IsAccessSpecifierToken(Lines[OpeningLineIndex - 1]->First))) {
         return;
+      }
       if (!TargetLine->Affected)
         return;
       Whitespaces.replaceWhitespace(*TargetToken, NewlineToInsert,
                                     TargetToken->OriginalColumn,
                                     TargetToken->OriginalColumn);
     };
     const auto IsPPConditional = [&](const size_t LineIndex) {
       const auto &Line = Lines[LineIndex];
const auto MayPrecedeDefinition = [&](const int Direction = -1) {
         // Q_OBJECT may also recognize some uppercased type names that may be
         // used as return type as that kind of macros, which is a bit hard to
         // distinguish one from another purely from token patterns. Here, we
         // try not to add new lines below those identifiers.
         AnnotatedLine *NextLine = Lines[OperateIndex + 1];
         if (NextLine->MightBeFunctionDecl &&
             NextLine->mightBeFunctionDefinition() &&
             NextLine->First->NewlinesBefore == 1 &&
-            OperateLine->First->is(TT_FunctionLikeOrFreestandingMacro))
+            OperateLine->First->is(TT_FunctionLikeOrFreestandingMacro)) {
           return true;
         }
+      }
 
       if ((Style.isCSharp() && OperateLine->First->is(TT_AttributeSquare)))
         return true;
       return false;
     };
 
     if (HasEnumOnLine() &&
         !LikelyDefinition(CurrentLine, /*ExcludeEnum=*/true)) {
for (unsigned I = 0; I < Lines.size(); ++I) {
     } else if (CurrentLine->First->closesScope()) {
       if (OpeningLineIndex > Lines.size())
         continue;
       // Handling the case that opening brace has its own line, with checking
       // whether the last line already had an opening brace to guard against
       // misrecognition.
       if (OpeningLineIndex > 0 &&
           Lines[OpeningLineIndex]->First->is(tok::l_brace) &&
-          Lines[OpeningLineIndex - 1]->Last->isNot(tok::l_brace))
+          Lines[OpeningLineIndex - 1]->Last->isNot(tok::l_brace)) {
         --OpeningLineIndex;
+      }
       OpeningLine = Lines[OpeningLineIndex];
       // Closing a function definition.
       if (LikelyDefinition(OpeningLine)) {
         IsDefBlock = true;
         while (OpeningLineIndex > 0 && MayPrecedeDefinition())
           --OpeningLineIndex;
         OpeningLine = Lines[OpeningLineIndex];
         TargetLine = OpeningLine;
         TargetToken = TargetLine->First;
         if (!FollowingOtherOpening()) {
           // Avoid duplicated replacement.
           if (TargetToken->isNot(tok::l_brace))
             InsertReplacement(NewlineCount);
-        } else if (IsNeverStyle)
+        } else if (IsNeverStyle) {
           InsertReplacement(OpeningLineIndex != 0);
         }
       }
+    }
 
     // Not the last token.
     if (IsDefBlock && I + 1 < Lines.size()) {
       OpeningLineIndex = I + 1;
       TargetLine = Lines[OpeningLineIndex];
       TargetToken = TargetLine->First;
 
       // No empty line for continuously closing scopes. The token will be
       // handled in another case if the line following is opening a
       // definition.
       if (!TargetToken->closesScope() && !IsPPConditional(OpeningLineIndex)) {
         // Check whether current line may precede a definition line.
         while (OpeningLineIndex + 1 < Lines.size() &&
-               MayPrecedeDefinition(/*Direction=*/0))
+               MayPrecedeDefinition(/*Direction=*/0)) {
           ++OpeningLineIndex;
+        }
         TargetLine = Lines[OpeningLineIndex];
         if (!LikelyDefinition(TargetLine)) {
           OpeningLineIndex = I + 1;
           TargetLine = Lines[I + 1];
           TargetToken = TargetLine->First;
           InsertReplacement(NewlineCount);
         }
-      } else if (IsNeverStyle)
+      } else if (IsNeverStyle) {
         InsertReplacement(/*NewlineToInsert=*/1);
       }
     }
-  for (const auto &R : Whitespaces.generateReplacements())
+  }
+  for (const auto &R : Whitespaces.generateReplacements()) {
     // The add method returns an Error instance which simulates program exit
     // code through overloading boolean operator, thus false here indicates
     // success.
     if (Result.add(R))
       return;
   }
+}
 } // namespace format
 } // namespace clang

clang/lib/Format/Format.cpp

static void mapping(IO &IO, FormatStyle &Style) {
     IO.mapOptional("AlwaysBreakAfterReturnType",
                    Style.AlwaysBreakAfterReturnType);
 
     // If AlwaysBreakAfterDefinitionReturnType was specified but
     // AlwaysBreakAfterReturnType was not, initialize the latter from the
     // former for backwards compatibility.
     if (Style.AlwaysBreakAfterDefinitionReturnType != FormatStyle::DRTBS_None &&
         Style.AlwaysBreakAfterReturnType == FormatStyle::RTBS_None) {
-      if (Style.AlwaysBreakAfterDefinitionReturnType == FormatStyle::DRTBS_All)
+      if (Style.AlwaysBreakAfterDefinitionReturnType ==
+          FormatStyle::DRTBS_All) {
         Style.AlwaysBreakAfterReturnType = FormatStyle::RTBS_AllDefinitions;
-      else if (Style.AlwaysBreakAfterDefinitionReturnType ==
-               FormatStyle::DRTBS_TopLevel)
+      } else if (Style.AlwaysBreakAfterDefinitionReturnType ==
+                 FormatStyle::DRTBS_TopLevel) {
         Style.AlwaysBreakAfterReturnType =
             FormatStyle::RTBS_TopLevelDefinitions;
       }
+    }
 
     IO.mapOptional("AlwaysBreakBeforeMultilineStrings",
                    Style.AlwaysBreakBeforeMultilineStrings);
     IO.mapOptional("AlwaysBreakTemplateDeclarations",
                    Style.AlwaysBreakTemplateDeclarations);
     IO.mapOptional("AttributeMacros", Style.AttributeMacros);
     IO.mapOptional("BinPackArguments", Style.BinPackArguments);
     IO.mapOptional("BinPackParameters", Style.BinPackParameters);
     IO.mapOptional("BraceWrapping", Style.BraceWrapping);
     IO.mapOptional("BreakBeforeBinaryOperators",
                    Style.BreakBeforeBinaryOperators);
     IO.mapOptional("BreakBeforeConceptDeclarations",
                    Style.BreakBeforeConceptDeclarations);
     IO.mapOptional("BreakBeforeBraces", Style.BreakBeforeBraces);
 
     bool BreakBeforeInheritanceComma = false;
     IO.mapOptional("BreakBeforeInheritanceComma", BreakBeforeInheritanceComma);
     IO.mapOptional("BreakInheritanceList", Style.BreakInheritanceList);
     // If BreakBeforeInheritanceComma was specified but
     // BreakInheritance was not, initialize the latter from the
     // former for backwards compatibility.
     if (BreakBeforeInheritanceComma &&
-        Style.BreakInheritanceList == FormatStyle::BILS_BeforeColon)
+        Style.BreakInheritanceList == FormatStyle::BILS_BeforeColon) {
       Style.BreakInheritanceList = FormatStyle::BILS_BeforeComma;
+    }
 
     IO.mapOptional("BreakBeforeTernaryOperators",
                    Style.BreakBeforeTernaryOperators);
 
     bool BreakConstructorInitializersBeforeComma = false;
     IO.mapOptional("BreakConstructorInitializersBeforeComma",
                    BreakConstructorInitializersBeforeComma);
     IO.mapOptional("BreakConstructorInitializers",
                    Style.BreakConstructorInitializers);
     // If BreakConstructorInitializersBeforeComma was specified but
     // BreakConstructorInitializers was not, initialize the latter from the
     // former for backwards compatibility.
     if (BreakConstructorInitializersBeforeComma &&
-        Style.BreakConstructorInitializers == FormatStyle::BCIS_BeforeColon)
+        Style.BreakConstructorInitializers == FormatStyle::BCIS_BeforeColon) {
       Style.BreakConstructorInitializers = FormatStyle::BCIS_BeforeComma;
+    }
 
     IO.mapOptional("BreakAfterJavaFieldAnnotations",
                    Style.BreakAfterJavaFieldAnnotations);
     IO.mapOptional("BreakStringLiterals", Style.BreakStringLiterals);
     IO.mapOptional("ColumnLimit", Style.ColumnLimit);
     IO.mapOptional("CommentPragmas", Style.CommentPragmas);
     IO.mapOptional("QualifierAlignment", Style.QualifierAlignment);
 
for (AnnotatedLine *Line : Lines) {
            FormatTok = FormatTok->Next) {
         StringRef Input = FormatTok->TokenText;
         if (FormatTok->Finalized || !FormatTok->isStringLiteral() ||
             // NB: testing for not starting with a double quote to avoid
             // breaking `template strings`.
             (Style.JavaScriptQuotes == FormatStyle::JSQS_Single &&
              !Input.startswith("\"")) ||
             (Style.JavaScriptQuotes == FormatStyle::JSQS_Double &&
-             !Input.startswith("\'")))
+             !Input.startswith("\'"))) {
           continue;
+        }
 
         // Change start and end quote.
         bool IsSingle = Style.JavaScriptQuotes == FormatStyle::JSQS_Single;
         SourceLocation Start = FormatTok->Tok.getLocation();
         auto Replace = [&](SourceLocation Start, unsigned Length,
                            StringRef ReplacementText) {
           auto Err = Result.add(tooling::Replacement(
               Env.getSourceManager(), Start, Length, ReplacementText));
hasCpp03IncompatibleFormat(const SmallVectorImpl<AnnotatedLine *> &Lines) {
     for (const AnnotatedLine *Line : Lines) {
       if (hasCpp03IncompatibleFormat(Line->Children))
         return true;
       for (FormatToken *Tok = Line->First->Next; Tok; Tok = Tok->Next) {
         if (!Tok->hasWhitespaceBefore()) {
           if (Tok->is(tok::coloncolon) && Tok->Previous->is(TT_TemplateOpener))
             return true;
           if (Tok->is(TT_TemplateCloser) &&
-              Tok->Previous->is(TT_TemplateCloser))
+              Tok->Previous->is(TT_TemplateCloser)) {
             return true;
           }
         }
       }
+    }
     return false;
   }
 
   int countVariableAlignments(const SmallVectorImpl<AnnotatedLine *> &Lines) {
     int AlignmentDiff = 0;
     for (const AnnotatedLine *Line : Lines) {
       AlignmentDiff += countVariableAlignments(Line->Children);
       for (FormatToken *Tok = Line->First; Tok && Tok->Next; Tok = Tok->Next) {
         if (!Tok->is(TT_PointerOrReference))
           continue;
         // Don't treat space in `void foo() &&` as evidence.
         if (const auto *Prev = Tok->getPreviousNonComment()) {
-          if (Prev->is(tok::r_paren) && Prev->MatchingParen)
-            if (const auto *Func = Prev->MatchingParen->getPreviousNonComment())
+          if (Prev->is(tok::r_paren) && Prev->MatchingParen) {
+            if (const auto *Func =
+                    Prev->MatchingParen->getPreviousNonComment()) {
               if (Func->isOneOf(TT_FunctionDeclarationName, TT_StartOfName,
-                                TT_OverloadedOperator))
+                                TT_OverloadedOperator)) {
                 continue;
               }
+            }
+          }
+        }
         bool SpaceBefore = Tok->hasWhitespaceBefore();
         bool SpaceAfter = Tok->Next->hasWhitespaceBefore();
         if (SpaceBefore && !SpaceAfter)
           ++AlignmentDiff;
         if (!SpaceBefore && SpaceAfter)
           --AlignmentDiff;
       }
     }
for (AnnotatedLine *Line : AnnotatedLines) {
       }
     }
     if (Style.DerivePointerAlignment) {
       Style.PointerAlignment = countVariableAlignments(AnnotatedLines) <= 0
                                    ? FormatStyle::PAS_Left
                                    : FormatStyle::PAS_Right;
       Style.ReferenceAlignment = FormatStyle::RAS_Pointer;
     }
-    if (Style.Standard == FormatStyle::LS_Auto)
+    if (Style.Standard == FormatStyle::LS_Auto) {
       Style.Standard = hasCpp03IncompatibleFormat(AnnotatedLines)
                            ? FormatStyle::LS_Latest
                            : FormatStyle::LS_Cpp03;
+    }
     BinPackInconclusiveFunctions =
         HasBinPackedFunction || !HasOnePerLineFunction;
   }
 
   bool BinPackInconclusiveFunctions;
   FormattingAttemptStatus *Status;
 };
 
for (AnnotatedLine *Line : Lines) {
            FormatTok = FormatTok->Next) {
         if (FormatTok->NewlinesBefore == 0)
           continue;
         FormatToken *Matching = FormatTok->MatchingParen;
         if (!Matching || !FormatTok->getPreviousNonComment())
           continue;
         if (!(FormatTok->is(tok::r_square) &&
               Matching->is(TT_ArrayInitializerLSquare)) &&
-            !(FormatTok->is(tok::r_brace) && Matching->is(TT_DictLiteral)))
+            !(FormatTok->is(tok::r_brace) && Matching->is(TT_DictLiteral))) {
           continue;
+        }
         FormatToken *Prev = FormatTok->getPreviousNonComment();
         if (Prev->is(tok::comma) || Prev->is(tok::semi))
           continue;
         // getEndLoc is not reliably set during re-lexing, use text length
         // instead.
         SourceLocation Start =
             Prev->Tok.getLocation().getLocWithOffset(Prev->TokenText.size());
         // If inserting a comma would push the code over the column limit, skip
if (Style.BraceWrapping.AfterNamespace) {
       return false;
     }
     while (++CurrentLine < End) {
       if (AnnotatedLines[CurrentLine]->startsWith(tok::r_brace))
         break;
 
       if (AnnotatedLines[CurrentLine]->startsWithNamespace()) {
         if (!checkEmptyNamespace(AnnotatedLines, CurrentLine, NewLine,
-                                 DeletedLines))
+                                 DeletedLines)) {
           return false;
+        }
         CurrentLine = NewLine;
         continue;
       }
 
       if (containsOnlyComments(*AnnotatedLines[CurrentLine]))
         continue;
 
       // If there is anything other than comments or nested namespaces in the
       // current namespace, the namespace cannot be empty.
       NewLine = CurrentLine;
       return false;
     }
 
     NewLine = CurrentLine;
     if (CurrentLine >= End)
       return false;
 
     // Check if the empty namespace is actually affected by changed ranges.
     if (!AffectedRangeMgr.affectsCharSourceRange(CharSourceRange::getCharRange(
             AnnotatedLines[InitLine]->First->Tok.getLocation(),
-            AnnotatedLines[CurrentLine]->Last->Tok.getEndLoc())))
+            AnnotatedLines[CurrentLine]->Last->Tok.getEndLoc()))) {
       return false;
+    }
 
     for (unsigned i = InitLine; i <= CurrentLine; ++i)
       DeletedLines.insert(i);
 
     return true;
   }
 
   // Checks pairs {start, start->next},..., {end->previous, end} and deletes one
   // of the token in the pair if the left token has \p LK token kind and the
   // right token has \p RK token kind. If \p DeleteLeft is true, the left token
   // is deleted on match; otherwise, the right token is deleted.
   template <typename LeftKind, typename RightKind>
   void cleanupPair(FormatToken *Start, LeftKind LK, RightKind RK,
                    bool DeleteLeft) {
     auto NextNotDeleted = [this](const FormatToken &Tok) -> FormatToken * {
-      for (auto *Res = Tok.Next; Res; Res = Res->Next)
+      for (auto *Res = Tok.Next; Res; Res = Res->Next) {
         if (!Res->is(tok::comment) &&
-            DeletedTokens.find(Res) == DeletedTokens.end())
+            DeletedTokens.find(Res) == DeletedTokens.end()) {
           return Res;
+        }
+      }
       return nullptr;
     };
     for (auto *Left = Start; Left;) {
       auto *Right = NextNotDeleted(*Left);
       if (!Right)
         break;
       if (Left->is(LK) && Right->is(RK)) {
         deleteToken(DeleteLeft ? Left : Right);
static constexpr llvm::StringLiteral FoundationIdentifiers[] = {
         "NSValue",
         "UIImage",
         "UIView",
     };
 
     for (auto Line : AnnotatedLines) {
       if (Line->First && (Line->First->TokenText.startswith("#") ||
                           Line->First->TokenText == "__pragma" ||
-                          Line->First->TokenText == "_Pragma"))
+                          Line->First->TokenText == "_Pragma")) {
         continue;
+      }
       for (const FormatToken *FormatTok = Line->First; FormatTok;
            FormatTok = FormatTok->Next) {
         if ((FormatTok->Previous && FormatTok->Previous->is(tok::at) &&
              (FormatTok->Tok.getObjCKeywordID() != tok::objc_not_keyword ||
               FormatTok->isOneOf(tok::numeric_constant, tok::l_square,
                                  tok::l_brace))) ||
             (FormatTok->Tok.isAnyIdentifier() &&
              std::binary_search(std::begin(FoundationIdentifiers),
struct JavaImportDirective {
   bool IsStatic;
 };
 
 } // end anonymous namespace
 
 // Determines whether 'Ranges' intersects with ('Start', 'End').
 static bool affectsRange(ArrayRef<tooling::Range> Ranges, unsigned Start,
                          unsigned End) {
-  for (auto Range : Ranges)
+  for (auto Range : Ranges) {
     if (Range.getOffset() < End &&
-        Range.getOffset() + Range.getLength() > Start)
+        Range.getOffset() + Range.getLength() > Start) {
       return true;
+    }
+  }
   return false;
 }
 
 // Returns a pair (Index, OffsetToEOL) describing the position of the cursor
 // before sorting/deduplicating. Index is the index of the include under the
 // cursor in the original set of includes. If this include has duplicates, it is
 // the index of the first of the duplicates as the others are going to be
 // removed. OffsetToEOL describes the cursor's position relative to the end of
static void sortCppIncludes(const FormatStyle &Style,
   const unsigned IncludesEndOffset =
       Includes.back().Offset + Includes.back().Text.size();
   const unsigned IncludesBlockSize = IncludesEndOffset - IncludesBeginOffset;
   if (!affectsRange(Ranges, IncludesBeginOffset, IncludesEndOffset))
     return;
   SmallVector<unsigned, 16> Indices =
       llvm::to_vector<16>(llvm::seq<unsigned>(0, Includes.size()));
 
-  if (Style.SortIncludes == FormatStyle::SI_CaseInsensitive)
+  if (Style.SortIncludes == FormatStyle::SI_CaseInsensitive) {
     llvm::stable_sort(Indices, [&](unsigned LHSI, unsigned RHSI) {
       const auto LHSFilenameLower = Includes[LHSI].Filename.lower();
       const auto RHSFilenameLower = Includes[RHSI].Filename.lower();
       return std::tie(Includes[LHSI].Priority, LHSFilenameLower,
                       Includes[LHSI].Filename) <
              std::tie(Includes[RHSI].Priority, RHSFilenameLower,
                       Includes[RHSI].Filename);
     });
-  else
+  } else {
     llvm::stable_sort(Indices, [&](unsigned LHSI, unsigned RHSI) {
       return std::tie(Includes[LHSI].Priority, Includes[LHSI].Filename) <
              std::tie(Includes[RHSI].Priority, Includes[RHSI].Filename);
     });
+  }
 
   // The index of the include on which the cursor will be put after
   // sorting/deduplicating.
   unsigned CursorIndex;
   // The offset from cursor to the end of line.
   unsigned CursorToEOLOffset;
-  if (Cursor)
+  if (Cursor) {
     std::tie(CursorIndex, CursorToEOLOffset) =
         FindCursorIndex(Includes, Indices, *Cursor);
+  }
 
   // Deduplicate #includes.
   Indices.erase(std::unique(Indices.begin(), Indices.end(),
                             [&](unsigned LHSI, unsigned RHSI) {
                               return Includes[LHSI].Text.trim() ==
                                      Includes[RHSI].Text.trim();
                             }),
                 Indices.end());
 
   int CurrentCategory = Includes.front().Category;
 
   // If the #includes are out of order, we generate a single replacement fixing
   // the entire block. Otherwise, no replacement is generated.
   // In case Style.IncldueStyle.IncludeBlocks != IBS_Preserve, this check is not
   // enough as additional newlines might be added or removed across #include
   // blocks. This we handle below by generating the updated #include blocks and
   // comparing it to the original.
   if (Indices.size() == Includes.size() && llvm::is_sorted(Indices) &&
-      Style.IncludeStyle.IncludeBlocks == tooling::IncludeStyle::IBS_Preserve)
+      Style.IncludeStyle.IncludeBlocks == tooling::IncludeStyle::IBS_Preserve) {
     return;
+  }
 
   std::string result;
   for (unsigned Index : Indices) {
     if (!result.empty()) {
       result += "\n";
       if (Style.IncludeStyle.IncludeBlocks ==
               tooling::IncludeStyle::IBS_Regroup &&
-          CurrentCategory != Includes[Index].Category)
+          CurrentCategory != Includes[Index].Category) {
         result += "\n";
       }
+    }
     result += Includes[Index].Text;
     if (Cursor && CursorIndex == Index)
       *Cursor = IncludesBeginOffset + result.size() - CursorToEOLOffset;
     CurrentCategory = Includes[Index].Category;
   }
 
   if (Cursor && *Cursor >= IncludesEndOffset)
     *Cursor += result.size() - IncludesBlockSize;
 
   // If the #includes are out of order, we generate a single replacement fixing
   // the entire range of blocks. Otherwise, no replacement is generated.
   if (replaceCRLF(result) == replaceCRLF(std::string(Code.substr(
-                                 IncludesBeginOffset, IncludesBlockSize))))
+                                 IncludesBeginOffset, IncludesBlockSize)))) {
     return;
+  }
 
   auto Err = Replaces.add(tooling::Replacement(
       FileName, Includes.front().Offset, IncludesBlockSize, result));
   // FIXME: better error handling. For now, just skip the replacement for the
   // release version.
   if (Err) {
     llvm::errs() << llvm::toString(std::move(Err)) << "\n";
     assert(false);
if (RawStringRegex.match(Trimmed, &RawStringMatches)) {
       std::string CharSequence = RawStringMatches[1].str();
       RawStringTermination = ")" + CharSequence + "\"";
       FormattingOff = true;
     }
 
     if (Trimmed.contains(RawStringTermination))
       FormattingOff = false;
 
-    if (Trimmed == "// clang-format off" || Trimmed == "/* clang-format off */")
+    if (Trimmed == "// clang-format off" ||
+        Trimmed == "/* clang-format off */") {
       FormattingOff = true;
-    else if (Trimmed == "// clang-format on" ||
-             Trimmed == "/* clang-format on */")
+    } else if (Trimmed == "// clang-format on" ||
+               Trimmed == "/* clang-format on */") {
       FormattingOff = false;
+    }
 
     const bool EmptyLineSkipped =
         Trimmed.empty() &&
         (Style.IncludeStyle.IncludeBlocks == tooling::IncludeStyle::IBS_Merge ||
          Style.IncludeStyle.IncludeBlocks ==
              tooling::IncludeStyle::IBS_Regroup);
 
     bool MergeWithNextLine = Trimmed.endswith("\\");
static void sortJavaImports(const FormatStyle &Style,
   bool CurrentIsStatic = Imports[Indices.front()].IsStatic;
   unsigned CurrentImportGroup = JavaImportGroups[Indices.front()];
 
   std::string result;
   for (unsigned Index : Indices) {
     if (!result.empty()) {
       result += "\n";
       if (CurrentIsStatic != Imports[Index].IsStatic ||
-          CurrentImportGroup != JavaImportGroups[Index])
+          CurrentImportGroup != JavaImportGroups[Index]) {
         result += "\n";
       }
+    }
     for (StringRef CommentLine : Imports[Index].AssociatedCommentLines) {
       result += CommentLine;
       result += "\n";
     }
     result += Imports[Index].Text;
     CurrentIsStatic = Imports[Index].IsStatic;
     CurrentImportGroup = JavaImportGroups[Index];
   }
 
   // If the imports are out of order, we generate a single replacement fixing
   // the entire block. Otherwise, no replacement is generated.
   if (replaceCRLF(result) == replaceCRLF(std::string(Code.substr(
-                                 Imports.front().Offset, ImportsBlockSize))))
+                                 Imports.front().Offset, ImportsBlockSize)))) {
     return;
+  }
 
   auto Err = Replaces.add(tooling::Replacement(FileName, Imports.front().Offset,
                                                ImportsBlockSize, result));
   // FIXME: better error handling. For now, just skip the replacement for the
   // release version.
   if (Err) {
     llvm::errs() << llvm::toString(std::move(Err)) << "\n";
     assert(false);
tooling::Replacements sortIncludes(const FormatStyle &Style, StringRef Code,
                                    ArrayRef<tooling::Range> Ranges,
                                    StringRef FileName, unsigned *Cursor) {
   tooling::Replacements Replaces;
   if (!Style.SortIncludes || Style.DisableFormat)
     return Replaces;
   if (isLikelyXml(Code))
     return Replaces;
   if (Style.Language == FormatStyle::LanguageKind::LK_JavaScript &&
-      isMpegTS(Code))
+      isMpegTS(Code)) {
     return Replaces;
+  }
   if (Style.Language == FormatStyle::LanguageKind::LK_JavaScript)
     return sortJavaScriptImports(Style, Code, Ranges, FileName);
   if (Style.Language == FormatStyle::LanguageKind::LK_Java)
     return sortJavaImports(Style, Code, Ranges, FileName, Replaces);
   sortCppIncludes(Style, Code, Ranges, FileName, Replaces, Cursor);
   return Replaces;
 }
 
if (Style.QualifierAlignment != FormatStyle::QAS_Leave) {
       Passes.emplace_back([&](const Environment &Env) {
         return QualifierAlignmentFixer(Env, Expanded, Code, Ranges,
                                        FirstStartColumn, NextStartColumn,
                                        LastStartColumn, FileName)
             .process();
       });
     }
 
-    if (Style.InsertBraces)
+    if (Style.InsertBraces) {
       Passes.emplace_back([&](const Environment &Env) {
         return BracesInserter(Env, Expanded).process();
       });
+    }
 
-    if (Style.RemoveBracesLLVM)
+    if (Style.RemoveBracesLLVM) {
       Passes.emplace_back([&](const Environment &Env) {
         return BracesRemover(Env, Expanded).process();
       });
+    }
 
-    if (Style.FixNamespaceComments)
+    if (Style.FixNamespaceComments) {
       Passes.emplace_back([&](const Environment &Env) {
         return NamespaceEndCommentsFixer(Env, Expanded).process();
       });
+    }
 
-    if (Style.SortUsingDeclarations)
+    if (Style.SortUsingDeclarations) {
       Passes.emplace_back([&](const Environment &Env) {
         return UsingDeclarationsSorter(Env, Expanded).process();
       });
     }
+  }
 
-  if (Style.SeparateDefinitionBlocks != FormatStyle::SDS_Leave)
+  if (Style.SeparateDefinitionBlocks != FormatStyle::SDS_Leave) {
     Passes.emplace_back([&](const Environment &Env) {
       return DefinitionBlockSeparator(Env, Expanded).process();
     });
+  }
 
-  if (Style.isJavaScript() && Style.JavaScriptQuotes != FormatStyle::JSQS_Leave)
+  if (Style.isJavaScript() &&
+      Style.JavaScriptQuotes != FormatStyle::JSQS_Leave) {
     Passes.emplace_back([&](const Environment &Env) {
       return JavaScriptRequoter(Env, Expanded).process();
     });
+  }
 
   Passes.emplace_back([&](const Environment &Env) {
     return Formatter(Env, Expanded, Status).process();
   });
 
   if (Style.isJavaScript() &&
-      Style.InsertTrailingCommas == FormatStyle::TCS_Wrapped)
+      Style.InsertTrailingCommas == FormatStyle::TCS_Wrapped) {
     Passes.emplace_back([&](const Environment &Env) {
       return TrailingCommaInserter(Env, Expanded).process();
     });
+  }
 
   auto Env = Environment::make(Code, FileName, Ranges, FirstStartColumn,
                                NextStartColumn, LastStartColumn);
   if (!Env)
     return {};
   llvm::Optional<std::string> CurrentCode = None;
   tooling::Replacements Fixes;
   unsigned Penalty = 0;
const char *StyleOptionHelpDescription =
     "parameters, e.g.:\n"
     "  -style=\"{BasedOnStyle: llvm, IndentWidth: 8}\"";
 
 static FormatStyle::LanguageKind getLanguageByFileName(StringRef FileName) {
   if (FileName.endswith(".java"))
     return FormatStyle::LK_Java;
   if (FileName.endswith_insensitive(".js") ||
       FileName.endswith_insensitive(".mjs") ||
-      FileName.endswith_insensitive(".ts"))
+      FileName.endswith_insensitive(".ts")) {
     return FormatStyle::LK_JavaScript; // (module) JavaScript or TypeScript.
+  }
   if (FileName.endswith(".m") || FileName.endswith(".mm"))
     return FormatStyle::LK_ObjC;
   if (FileName.endswith_insensitive(".proto") ||
-      FileName.endswith_insensitive(".protodevel"))
+      FileName.endswith_insensitive(".protodevel")) {
     return FormatStyle::LK_Proto;
+  }
   if (FileName.endswith_insensitive(".textpb") ||
       FileName.endswith_insensitive(".pb.txt") ||
       FileName.endswith_insensitive(".textproto") ||
-      FileName.endswith_insensitive(".asciipb"))
+      FileName.endswith_insensitive(".asciipb")) {
     return FormatStyle::LK_TextProto;
+  }
   if (FileName.endswith_insensitive(".td"))
     return FormatStyle::LK_TableGen;
   if (FileName.endswith_insensitive(".cs"))
     return FormatStyle::LK_CSharp;
   if (FileName.endswith_insensitive(".json"))
     return FormatStyle::LK_Json;
   return FormatStyle::LK_Cpp;
 }
llvm::Expected<FormatStyle> getStyle(StringRef StyleName, StringRef FileName,
   llvm::SmallVector<std::unique_ptr<llvm::MemoryBuffer>, 1>
       ChildFormatTextToApply;
 
   if (StyleName.startswith("{")) {
     // Parse YAML/JSON style from the command line.
     StringRef Source = "<command-line>";
     if (std::error_code ec =
             parseConfiguration(llvm::MemoryBufferRef(StyleName, Source), &Style,
-                               AllowUnknownOptions))
+                               AllowUnknownOptions)) {
       return make_string_error("Error parsing -style: " + ec.message());
-    if (Style.InheritsParentConfig)
+    }
+    if (Style.InheritsParentConfig) {
       ChildFormatTextToApply.emplace_back(
           llvm::MemoryBuffer::getMemBuffer(StyleName, Source, false));
-    else
+    } else {
       return Style;
     }
+  }
 
   // User provided clang-format file using -style=file:path/to/format/file.
   if (!Style.InheritsParentConfig &&
       StyleName.startswith_insensitive("file:")) {
     auto ConfigFile = StyleName.substr(5);
     llvm::ErrorOr<std::unique_ptr<llvm::MemoryBuffer>> Text =
         loadAndParseConfigFile(ConfigFile, FS, &Style, AllowUnknownOptions);
-    if (auto EC = Text.getError())
+    if (auto EC = Text.getError()) {
       return make_string_error("Error reading " + ConfigFile + ": " +
                                EC.message());
+    }
 
     LLVM_DEBUG(llvm::dbgs()
                << "Using configuration file " << ConfigFile << "\n");
 
     if (!Style.InheritsParentConfig)
       return Style;
 
     // Search for parent configs starting from the parent directory of
auto applyChildFormatTexts = [&](FormatStyle *Style) {
     }
   };
 
   for (StringRef Directory = Path; !Directory.empty();
        Directory = llvm::sys::path::parent_path(Directory)) {
 
     auto Status = FS->status(Directory);
     if (!Status ||
-        Status->getType() != llvm::sys::fs::file_type::directory_file)
+        Status->getType() != llvm::sys::fs::file_type::directory_file) {
       continue;
+    }
 
     for (const auto &F : FilesToLookFor) {
       SmallString<128> ConfigFile(Directory);
 
       llvm::sys::path::append(ConfigFile, F);
       LLVM_DEBUG(llvm::dbgs() << "Trying " << ConfigFile << "...\n");
 
       Status = FS->status(ConfigFile.str());
for (const auto &F : FilesToLookFor) {
         // Breaking out of the inner loop, since we don't want to parse
         // .clang-format AND _clang-format, if both exist. Then we continue the
         // inner loop (parent directories) in search for the parent
         // configuration.
         break;
       }
     }
   }
-  if (!UnsuitableConfigFiles.empty())
+  if (!UnsuitableConfigFiles.empty()) {
     return make_string_error("Configuration file(s) do(es) not support " +
                              getLanguageName(Style.Language) + ": " +
                              UnsuitableConfigFiles);
+  }
 
   if (!ChildFormatTextToApply.empty()) {
     LLVM_DEBUG(llvm::dbgs()
                << "Applying child configurations on fallback style\n");
     applyChildFormatTexts(&FallbackStyle);
   }
 
   return FallbackStyle;
 }
 
 } // namespace format
 } // namespace clang

clang/lib/Format/FormatToken.cpp

unsigned CommaSeparatedList::formatAfterToken(LineState &State,
   if (Formats.size() == 1)
     return 0; // Handled by formatFromToken
 
   // Ensure that we start on the opening brace.
   const FormatToken *LBrace =
       State.NextToken->Previous->getPreviousNonComment();
   if (!LBrace || !LBrace->isOneOf(tok::l_brace, TT_ArrayInitializerLSquare) ||
       LBrace->is(BK_Block) || LBrace->is(TT_DictLiteral) ||
-      LBrace->Next->is(TT_DesignatedInitializerPeriod))
+      LBrace->Next->is(TT_DesignatedInitializerPeriod)) {
     return 0;
+  }
 
   // Calculate the number of code points we have to format this list. As the
   // first token is already placed, we have to subtract it.
   unsigned RemainingCodePoints =
       Style.ColumnLimit - State.Column + State.NextToken->Previous->ColumnWidth;
 
   // Find the best ColumnFormat, i.e. the best number of columns to use.
   const ColumnFormat *Format = getColumnFormat(RemainingCodePoints);
static unsigned CodePointsBetween(const FormatToken *Begin,
                                   const FormatToken *End) {
   assert(End->TotalLength >= Begin->TotalLength);
   return End->TotalLength - Begin->TotalLength + Begin->ColumnWidth;
 }
 
 void CommaSeparatedList::precomputeFormattingInfos(const FormatToken *Token) {
   // FIXME: At some point we might want to do this for other lists, too.
   if (!Token->MatchingParen ||
-      !Token->isOneOf(tok::l_brace, TT_ArrayInitializerLSquare))
+      !Token->isOneOf(tok::l_brace, TT_ArrayInitializerLSquare)) {
     return;
+  }
 
   // In C++11 braced list style, we should not format in columns unless they
   // have many items (20 or more) or we allow bin-packing of function call
   // arguments.
   if (Style.Cpp11BracedListStyle && !Style.BinPackArguments &&
-      Commas.size() < 19)
+      Commas.size() < 19) {
     return;
+  }
 
   // Limit column layout for JavaScript array initializers to 20 or more items
   // for now to introduce it carefully. We can become more aggressive if this
   // necessary.
   if (Token->is(TT_ArrayInitializerLSquare) && Commas.size() < 19)
     return;
 
   // Column format doesn't really make sense if we don't align after brackets.
if (i == Commas.size()) {
       }
     } else {
       ItemEnd = Commas[i];
       // The comma is counted as part of the item when calculating the length.
       ItemLengths.push_back(CodePointsBetween(ItemBegin, ItemEnd));
 
       // Consume trailing comments so the are included in EndOfLineItemLength.
       if (ItemEnd->Next && !ItemEnd->Next->HasUnescapedNewline &&
-          ItemEnd->Next->isTrailingComment())
+          ItemEnd->Next->isTrailingComment()) {
         ItemEnd = ItemEnd->Next;
       }
+    }
     EndOfLineItemLength.push_back(CodePointsBetween(ItemBegin, ItemEnd));
     // If there is a trailing comma in the list, the next item will start at the
     // closing brace. Don't create an extra item for this.
     if (ItemEnd->getNextNonComment() == Token->MatchingParen)
       break;
     ItemBegin = ItemEnd->Next;
   }
 
for (unsigned Columns = 1; Columns <= MaxItems; ++Columns) {
 
     // Don't use this Format, if the difference between the longest and shortest
     // element in a column exceeds a threshold to avoid excessive spaces.
     if ([&] {
           for (unsigned i = 0; i < Columns - 1; ++i)
             if (Format.ColumnSizes[i] - MinSizeInColumn[i] > 10)
               return true;
           return false;
-        }())
+        }()) {
       continue;
+    }
 
     // Ignore layouts that are bound to violate the column limit.
     if (Format.TotalWidth > Style.ColumnLimit && Columns > 1)
       continue;
 
     Formats.push_back(Format);
   }
 }

clang/lib/Format/FormatTokenLexer.cpp

do {
     Tokens.push_back(getNextToken());
     if (Style.isJavaScript()) {
       tryParseJSRegexLiteral();
       handleTemplateStrings();
     }
     if (Style.Language == FormatStyle::LK_TextProto)
       tryParsePythonComment();
     tryMergePreviousTokens();
-    if (Style.isCSharp())
+    if (Style.isCSharp()) {
       // This needs to come after tokens have been merged so that C#
       // string literals are correctly identified.
       handleCSharpVerbatimAndInterpolatedStrings();
+    }
     if (Tokens.back()->NewlinesBefore > 0 || Tokens.back()->IsMultiline)
       FirstInLineIndex = Tokens.size() - 1;
   } while (Tokens.back()->isNot(tok::eof));
   return Tokens;
 }
 
 void FormatTokenLexer::tryMergePreviousTokens() {
   if (tryMerge_TMacro())

 };
 
 bool FormatTokenLexer::tryMergeNullishCoalescingEqual() {
   if (Tokens.size() < 2)
     return false;
   auto &NullishCoalescing = *(Tokens.end() - 2);
   auto &Equal = *(Tokens.end() - 1);
   if (NullishCoalescing->getType() != TT_NullCoalescingOperator ||
-      !Equal->is(tok::equal))
+      !Equal->is(tok::equal)) {
     return false;
+  }
   NullishCoalescing->Tok.setKind(tok::equal); // no '??=' in clang tokens.
   NullishCoalescing->TokenText =
       StringRef(NullishCoalescing->TokenText.begin(),
                 Equal->TokenText.end() - NullishCoalescing->TokenText.begin());
   NullishCoalescing->ColumnWidth += Equal->ColumnWidth;
   NullishCoalescing->setType(TT_NullCoalescingEqual);
   Tokens.erase(Tokens.end() - 1);
   return true;

 void FormatTokenLexer::handleCSharpVerbatimAndInterpolatedStrings() {
   FormatToken *CSharpStringLiteral = Tokens.back();
 
   if (CSharpStringLiteral->getType() != TT_CSharpStringLiteral)
     return;
 
   // Deal with multiline strings.
   if (!(CSharpStringLiteral->TokenText.startswith(R"(@")") ||
-        CSharpStringLiteral->TokenText.startswith(R"($@")")))
+        CSharpStringLiteral->TokenText.startswith(R"($@")"))) {
     return;
+  }
 
   const char *StrBegin =
       Lex->getBufferLocation() - CSharpStringLiteral->TokenText.size();
   const char *Offset = StrBegin;
   if (CSharpStringLiteral->TokenText.startswith(R"(@")"))
     Offset += 2;
   else // CSharpStringLiteral->TokenText.startswith(R"($@")")
     Offset += 3;
bool FormatTokenLexer::tryMergeConflictMarkers() {
   auto FirstSpace = Buffer.find_first_of(" \n", LineOffset);
   StringRef LineStart;
   if (FirstSpace == StringRef::npos)
     LineStart = Buffer.substr(LineOffset);
   else
     LineStart = Buffer.substr(LineOffset, FirstSpace - LineOffset);
 
   TokenType Type = TT_Unknown;
-  if (LineStart == "<<<<<<<" || LineStart == ">>>>")
+  if (LineStart == "<<<<<<<" || LineStart == ">>>>") {
     Type = TT_ConflictStart;
-  else if (LineStart == "|||||||" || LineStart == "=======" ||
-           LineStart == "====")
+  } else if (LineStart == "|||||||" || LineStart == "=======" ||
+             LineStart == "====") {
     Type = TT_ConflictAlternative;
-  else if (LineStart == ">>>>>>>" || LineStart == "<<<<")
+  } else if (LineStart == ">>>>>>>" || LineStart == "<<<<") {
     Type = TT_ConflictEnd;
+  }
 
   if (Type != TT_Unknown) {
     FormatToken *Next = Tokens.back();
 
     Tokens.resize(FirstInLineIndex + 1);
     // We do not need to build a complete token here, as we will skip it
     // during parsing anyway (as we must not touch whitespace around conflict
     // markers).
FormatToken *FormatTokenLexer::getNextToken() {
 
   // In case the token starts with escaped newlines, we want to
   // take them into account as whitespace - this pattern is quite frequent
   // in macro definitions.
   // FIXME: Add a more explicit test.
   while (FormatTok->TokenText.size() > 1 && FormatTok->TokenText[0] == '\\') {
     unsigned SkippedWhitespace = 0;
     if (FormatTok->TokenText.size() > 2 &&
-        (FormatTok->TokenText[1] == '\r' && FormatTok->TokenText[2] == '\n'))
+        (FormatTok->TokenText[1] == '\r' && FormatTok->TokenText[2] == '\n')) {
       SkippedWhitespace = 3;
-    else if (FormatTok->TokenText[1] == '\n')
+    } else if (FormatTok->TokenText[1] == '\n') {
       SkippedWhitespace = 2;
-    else
+    } else {
       break;
+    }
 
     ++FormatTok->NewlinesBefore;
     WhitespaceLength += SkippedWhitespace;
     FormatTok->LastNewlineOffset = SkippedWhitespace;
     Column = 0;
     FormatTok->TokenText = FormatTok->TokenText.substr(SkippedWhitespace);
   }
 
if (!Tok.TokenText.empty() && Tok.TokenText[0] == '"') {
       Tok.IsUnterminatedLiteral = true;
     } else if (Style.isJavaScript() && Tok.TokenText == "''") {
       Tok.Tok.setKind(tok::string_literal);
     }
   }
 
   if ((Style.isJavaScript() || Style.Language == FormatStyle::LK_Proto ||
        Style.Language == FormatStyle::LK_TextProto) &&
-      Tok.is(tok::char_constant))
+      Tok.is(tok::char_constant)) {
     Tok.Tok.setKind(tok::string_literal);
+  }
 
   if (Tok.is(tok::comment) && (Tok.TokenText == "// clang-format on" ||
-                               Tok.TokenText == "/* clang-format on */"))
+                               Tok.TokenText == "/* clang-format on */")) {
     FormattingDisabled = false;
+  }
 
   Tok.Finalized = FormattingDisabled;
 
   if (Tok.is(tok::comment) && (Tok.TokenText == "// clang-format off" ||
-                               Tok.TokenText == "/* clang-format off */"))
+                               Tok.TokenText == "/* clang-format off */")) {
     FormattingDisabled = true;
   }
+}
 
 void FormatTokenLexer::resetLexer(unsigned Offset) {
   StringRef Buffer = SourceMgr.getBufferData(ID);
   LangOpts = getFormattingLangOpts(Style);
   Lex.reset(new Lexer(SourceMgr.getLocForStartOfFile(ID), LangOpts,
                       Buffer.begin(), Buffer.begin() + Offset, Buffer.end()));
   Lex->SetKeepWhitespaceMode(true);
   TrailingWhitespace = 0;
 }
 
 } // namespace format
 } // namespace clang

clang/lib/Format/QualifierAlignmentFixer.cpp

std::pair<tooling::Replacements, unsigned> QualifierAlignmentFixer::analyze(
   // Don't make replacements that replace nothing.
   tooling::Replacements NonNoOpFixes;
 
   for (const tooling::Replacement &Fix : Fixes) {
     StringRef OriginalCode = Code.substr(Fix.getOffset(), Fix.getLength());
 
     if (!OriginalCode.equals(Fix.getReplacementText())) {
       auto Err = NonNoOpFixes.add(Fix);
-      if (Err)
+      if (Err) {
         llvm::errs() << "Error adding replacements : "
                      << llvm::toString(std::move(Err)) << "\n";
       }
     }
+  }
   return {NonNoOpFixes, 0};
 }
 
 static void replaceToken(const SourceManager &SourceMgr,
                          tooling::Replacements &Fixes,
                          const CharSourceRange &Range, std::string NewText) {
   auto Replacement = tooling::Replacement(SourceMgr, Range, NewText);
   auto Err = Fixes.add(Replacement);
 
-  if (Err)
+  if (Err) {
     llvm::errs() << "Error while rearranging Qualifier : "
                  << llvm::toString(std::move(Err)) << "\n";
   }
+}
 
 static void removeToken(const SourceManager &SourceMgr,
                         tooling::Replacements &Fixes,
                         const FormatToken *First) {
   auto Range = CharSourceRange::getCharRange(First->getStartOfNonWhitespace(),
                                              First->Tok.getEndLoc());
   replaceToken(SourceMgr, Fixes, Range, "");
 }
return Tok;
                                  TT_TemplateOpener)) {
     // Read from the TemplateOpener to
     // TemplateCloser as in const ArrayRef<int> a; const ArrayRef<int> &a;
     FormatToken *EndTemplate = Tok->Next->Next->MatchingParen;
     if (EndTemplate) {
       // Move to the end of any template class members e.g.
       // `Foo<int>::iterator`.
       if (EndTemplate->startsSequence(TT_TemplateCloser, tok::coloncolon,
-                                      tok::identifier))
+                                      tok::identifier)) {
         EndTemplate = EndTemplate->Next->Next;
       }
+    }
     if (EndTemplate && EndTemplate->Next &&
         !EndTemplate->Next->isOneOf(tok::equal, tok::l_paren)) {
       insertQualifierAfter(SourceMgr, Fixes, EndTemplate, Qualifier);
       // Remove the qualifier.
       removeToken(SourceMgr, Fixes, Tok);
       return Tok;
     }
   } else if (Tok->startsSequence(QualifierType, tok::identifier)) {
     FormatToken *Next = Tok->Next;
     // The case  `const Foo` -> `Foo const`
     // The case  `const Foo *` -> `Foo const *`
     // The case  `const Foo &` -> `Foo const &`
     // The case  `const Foo &&` -> `Foo const &&`
     // The case  `const std::Foo &&` -> `std::Foo const &&`
     // The case  `const std::Foo<T> &&` -> `std::Foo<T> const &&`
     while (Next && Next->isOneOf(tok::identifier, tok::coloncolon))
       Next = Next->Next;
     if (Next && Next->is(TT_TemplateOpener)) {
       Next = Next->MatchingParen;
       // Move to the end of any template class members e.g.
       // `Foo<int>::iterator`.
       if (Next && Next->startsSequence(TT_TemplateCloser, tok::coloncolon,
-                                       tok::identifier))
+                                       tok::identifier)) {
         return Tok;
+      }
       assert(Next && "Missing template opener");
       Next = Next->Next;
     }
     if (Next && Next->isOneOf(tok::star, tok::amp, tok::ampamp) &&
         !Tok->Next->isOneOf(Keywords.kw_override, Keywords.kw_final)) {
       if (Next->Previous && !Next->Previous->is(QualifierType)) {
         insertQualifierAfter(SourceMgr, Fixes, Next->Previous, Qualifier);
         removeToken(SourceMgr, Fixes, Tok);
if (Tok->Next->Next && Tok->Next->Next->isOneOf(tok::identifier, tok::star,
                                    TT_TemplateCloser)) {
       FormatToken *Closer = Tok->Next->Next;
       rotateTokens(SourceMgr, Fixes, Tok, Tok->Next, /*Left=*/true);
       Tok = Closer;
     }
   }
   if (Tok->is(TT_TemplateOpener) && Tok->Next &&
       (Tok->Next->is(tok::identifier) || Tok->Next->isSimpleTypeSpecifier()) &&
-      Tok->Next->Next && Tok->Next->Next->is(QualifierType))
+      Tok->Next->Next && Tok->Next->Next->is(QualifierType)) {
     rotateTokens(SourceMgr, Fixes, Tok->Next, Tok->Next->Next, /*Left=*/true);
+  }
   if (Tok->startsSequence(tok::identifier) && Tok->Next) {
     if (Tok->Previous &&
-        Tok->Previous->isOneOf(tok::star, tok::ampamp, tok::amp))
+        Tok->Previous->isOneOf(tok::star, tok::ampamp, tok::amp)) {
       return Tok;
+    }
     const FormatToken *Next = Tok->Next;
     // The case  `std::Foo<T> const` -> `const std::Foo<T> &&`
     while (Next && Next->isOneOf(tok::identifier, tok::coloncolon))
       Next = Next->Next;
     if (Next && Next->Previous &&
         Next->Previous->startsSequence(tok::identifier, TT_TemplateOpener)) {
       // Read from to the end of the TemplateOpener to
       // TemplateCloser const ArrayRef<int> a; const ArrayRef<int> &a;
if (First->Finalized)
       continue;
 
     const auto *Last = Line->Last;
 
     for (const auto *Tok = First; Tok && Tok != Last && Tok->Next;
          Tok = Tok->Next) {
       if (Tok->is(tok::comment))
         continue;
-      if (RightAlign)
+      if (RightAlign) {
         Tok = analyzeRight(SourceMgr, Keywords, Fixes, Tok, Qualifier,
                            QualifierToken);
-      else
+      } else {
         Tok = analyzeLeft(SourceMgr, Keywords, Fixes, Tok, Qualifier,
                           QualifierToken);
       }
     }
+  }
   return {Fixes, 0};
 }
 
 void QualifierAlignmentFixer::PrepareLeftRightOrdering(
     const std::vector<std::string> &Order, std::vector<std::string> &LeftOrder,
     std::vector<std::string> &RightOrder,
     std::vector<tok::TokenKind> &Qualifiers) {
 
if (s == "type") {
       continue;
     }
 
     tok::TokenKind QualifierToken =
         LeftRightQualifierAlignmentFixer::getTokenFromQualifier(s);
     if (QualifierToken != tok::kw_typeof && QualifierToken != tok::identifier)
       Qualifiers.push_back(QualifierToken);
 
-    if (left)
+    if (left) {
       // Reverse the order for left aligned items.
       LeftOrder.insert(LeftOrder.begin(), s);
-    else
+    } else {
       RightOrder.push_back(s);
     }
   }
+}
 
 bool LeftRightQualifierAlignmentFixer::isQualifierOrType(
     const FormatToken *Tok, const std::vector<tok::TokenKind> &specifiedTypes) {
   return Tok && (Tok->isSimpleTypeSpecifier() || Tok->is(tok::kw_auto) ||
                  llvm::is_contained(specifiedTypes, Tok->Tok.getKind()));
 }
 
 // If a token is an identifier and it's upper case, it could
 // be a macro and hence we need to be able to ignore it.
 bool LeftRightQualifierAlignmentFixer::isPossibleMacro(const FormatToken *Tok) {
   if (!Tok)
     return false;
   if (!Tok->is(tok::identifier))
     return false;
-  if (Tok->TokenText.upper() == Tok->TokenText.str())
+  if (Tok->TokenText.upper() == Tok->TokenText.str()) {
     // T,K,U,V likely could be template arguments
     return (Tok->TokenText.size() != 1);
+  }
   return false;
 }
 
 } // namespace format
 } // namespace clang

clang/lib/Format/SortJavaScriptImports.cpp

 };
 
 bool operator<(const JsModuleReference &LHS, const JsModuleReference &RHS) {
   if (LHS.IsExport != RHS.IsExport)
     return LHS.IsExport < RHS.IsExport;
   if (LHS.Category != RHS.Category)
     return LHS.Category < RHS.Category;
   if (LHS.Category == JsModuleReference::ReferenceCategory::SIDE_EFFECT ||
-      LHS.Category == JsModuleReference::ReferenceCategory::ALIAS)
+      LHS.Category == JsModuleReference::ReferenceCategory::ALIAS) {
     // Side effect imports and aliases might be ordering sensitive. Consider
     // them equal so that they maintain their relative order in the stable sort
     // below. This retains transitivity because LHS.Category == RHS.Category
     // here.
     return false;
+  }
   // Empty URLs sort *last* (for export {...};).
   if (LHS.URL.empty() != RHS.URL.empty())
     return LHS.URL.empty() < RHS.URL.empty();
   if (int Res = LHS.URL.compare_insensitive(RHS.URL))
     return Res < 0;
   // '*' imports (with prefix) sort before {a, b, ...} imports.
   if (LHS.Prefix.empty() != RHS.Prefix.empty())
     return LHS.Prefix.empty() < RHS.Prefix.empty();
for (unsigned I = 0, E = References.size(); I != E; ++I) {
       appendReference(ReferencesText, Reference);
       if (I + 1 < E) {
         // Insert breaks between imports and exports.
         ReferencesText += "\n";
         // Separate imports groups with two line breaks, but keep all exports
         // in a single group.
         if (!Reference.IsExport &&
             (Reference.IsExport != References[I + 1].IsExport ||
-             Reference.Category != References[I + 1].Category))
+             Reference.Category != References[I + 1].Category)) {
           ReferencesText += "\n";
         }
       }
+    }
     llvm::StringRef PreviousText = getSourceText(InsertionPoint);
     if (ReferencesText == PreviousText)
       return {Result, 0};
 
     // The loop above might collapse previously existing line breaks between
     // import blocks, and thus shrink the file. SortIncludes must not shrink
     // overall source length as there is currently no re-calculation of ranges
     // after applying source sorting.
     // This loop just backfills trailing spaces after the imports, which are
     // harmless and will be stripped by the subsequent formatting pass.
     // FIXME: A better long term fix is to re-calculate Ranges after sorting.
     unsigned PreviousSize = PreviousText.size();
     while (ReferencesText.size() < PreviousSize)
       ReferencesText += " ";
 
     // Separate references from the main code body of the file.
     if (FirstNonImportLine && FirstNonImportLine->First->NewlinesBefore < 2 &&
         !(FirstNonImportLine->First->is(tok::comment) &&
-          FirstNonImportLine->First->TokenText.trim() == "// clang-format on"))
+          FirstNonImportLine->First->TokenText.trim() ==
+              "// clang-format on")) {
       ReferencesText += "\n";
+    }
 
     LLVM_DEBUG(llvm::dbgs() << "Replacing imports:\n"
                             << PreviousText << "\nwith:\n"
                             << ReferencesText << "\n");
     auto Err = Result.add(tooling::Replacement(
         Env.getSourceManager(), CharSourceRange::getCharRange(InsertionPoint),
         ReferencesText));
     // FIXME: better error handling. For now, just print error message and skip
for (auto *Line : AnnotatedLines) {
             References.back().Range.setEnd(Current->Tok.getEndLoc());
             Start = Current->Tok.getEndLoc().getLocWithOffset(1);
           }
         }
         // Handle all clang-format comments on a line, e.g. for an empty block.
         Current = Current->Next;
       }
       skipComments();
-      if (Start.isInvalid() || References.empty())
+      if (Start.isInvalid() || References.empty()) {
         // After the first file level comment, consider line comments to be part
         // of the import that immediately follows them by using the previously
         // set Start.
         Start = Line->First->Tok.getLocation();
+      }
       if (!Current) {
         // Only comments on this line. Could be the first non-import line.
         FirstNonImportLine = Line;
         continue;
       }
       JsModuleReference Reference;
       Reference.FormattingOff = FormattingOff;
       Reference.Range.setBegin(Start);
bool parseModuleReference(const AdditionalKeywords &Keywords,
     if (Current->is(Keywords.kw_from)) {
       // imports have a 'from' clause, exports might not.
       nextToken();
       if (!Current->isStringLiteral())
         return false;
       // URL = TokenText without the quotes.
       Reference.URL =
           Current->TokenText.substr(1, Current->TokenText.size() - 2);
-      if (Reference.URL.startswith(".."))
+      if (Reference.URL.startswith("..")) {
         Reference.Category =
             JsModuleReference::ReferenceCategory::RELATIVE_PARENT;
-      else if (Reference.URL.startswith("."))
+      } else if (Reference.URL.startswith(".")) {
         Reference.Category = JsModuleReference::ReferenceCategory::RELATIVE;
-      else
+      } else {
         Reference.Category = JsModuleReference::ReferenceCategory::ABSOLUTE;
       }
+    }
     return true;
   }
 
   bool parseModuleBindings(const AdditionalKeywords &Keywords,
                            JsModuleReference &Reference) {
     if (parseStarBinding(Keywords, Reference))
       return true;
     return parseNamedBindings(Keywords, Reference);

clang/lib/Format/TokenAnnotator.cpp

 }
 
 /// With `Left` being '(', check if we're at either `[...](` or
 /// `[...]<...>(`, where the [ opens a lambda capture list.
 static bool isLambdaParameterList(const FormatToken *Left) {
   // Skip <...> if present.
   if (Left->Previous && Left->Previous->is(tok::greater) &&
       Left->Previous->MatchingParen &&
-      Left->Previous->MatchingParen->is(TT_TemplateOpener))
+      Left->Previous->MatchingParen->is(TT_TemplateOpener)) {
     Left = Left->Previous->MatchingParen;
+  }
 
   // Check for `[...]`.
   return Left->Previous && Left->Previous->is(tok::r_square) &&
          Left->Previous->MatchingParen &&
          Left->Previous->MatchingParen->is(TT_LambdaLSquare);
 }
 
 /// Returns \c true if the token is followed by a boolean condition, \c false
if (NonTemplateLess.count(CurrentToken->Previous))
       return false;
 
     const FormatToken &Previous = *CurrentToken->Previous; // The '<'.
     if (Previous.Previous) {
       if (Previous.Previous->Tok.isLiteral())
         return false;
       if (Previous.Previous->is(tok::r_paren) && Contexts.size() > 1 &&
           (!Previous.Previous->MatchingParen ||
-           !Previous.Previous->MatchingParen->is(TT_OverloadedOperatorLParen)))
+           !Previous.Previous->MatchingParen->is(
+               TT_OverloadedOperatorLParen))) {
         return false;
       }
+    }
 
     FormatToken *Left = CurrentToken->Previous;
     Left->ParentBracket = Contexts.back().ContextKind;
     ScopedContextCreator ContextCreator(*this, tok::less, 12);
 
     // If this angle is in the context of an expression, we need to be more
     // hesitant to detect it as opening template parameters.
     bool InExprContext = Contexts.back().IsExpression;
 
     Contexts.back().IsExpression = false;
     // If there's a template keyword before the opening angle bracket, this is a
     // template parameter, not an argument.
     if (Left->Previous && Left->Previous->isNot(tok::kw_template))
       Contexts.back().ContextType = Context::TemplateArgument;
 
     if (Style.Language == FormatStyle::LK_Java &&
-        CurrentToken->is(tok::question))
+        CurrentToken->is(tok::question)) {
       next();
+    }
 
     while (CurrentToken) {
       if (CurrentToken->is(tok::greater)) {
         // Try to do a better job at looking for ">>" within the condition of
         // a statement. Conservatively insert spaces between consecutive ">"
         // tokens to prevent splitting right bitshift operators and potentially
         // altering program semantics. This check is overly conservative and
         // will prevent spaces from being inserted in select nested template
         // parameter cases, but should not alter program semantics.
         if (CurrentToken->Next && CurrentToken->Next->is(tok::greater) &&
             Left->ParentBracket != tok::less &&
             (isKeywordWithCondition(*Line.First) ||
              CurrentToken->getStartOfNonWhitespace() ==
                  CurrentToken->Next->getStartOfNonWhitespace().getLocWithOffset(
-                     -1)))
+                     -1))) {
           return false;
+        }
         Left->MatchingParen = CurrentToken;
         CurrentToken->MatchingParen = Left;
         // In TT_Proto, we must distignuish between:
         //   map<key, value>
         //   msg < item: data >
         //   msg: < item: data >
         // In TT_TextProto, map<key, value> does not occur.
         if (Style.Language == FormatStyle::LK_TextProto ||
             (Style.Language == FormatStyle::LK_Proto && Left->Previous &&
-             Left->Previous->isOneOf(TT_SelectorName, TT_DictLiteral)))
+             Left->Previous->isOneOf(TT_SelectorName, TT_DictLiteral))) {
           CurrentToken->setType(TT_DictLiteral);
-        else
+        } else {
           CurrentToken->setType(TT_TemplateCloser);
+        }
         next();
         return true;
       }
       if (CurrentToken->is(tok::question) &&
           Style.Language == FormatStyle::LK_Java) {
         next();
         continue;
       }
       if (CurrentToken->isOneOf(tok::r_paren, tok::r_square, tok::r_brace) ||
           (CurrentToken->isOneOf(tok::colon, tok::question) && InExprContext &&
            !Style.isCSharp() && Style.Language != FormatStyle::LK_Proto &&
-           Style.Language != FormatStyle::LK_TextProto))
+           Style.Language != FormatStyle::LK_TextProto)) {
         return false;
+      }
       // If a && or || is found and interpreted as a binary operator, this set
       // of angles is likely part of something like "a < b && c > d". If the
       // angles are inside an expression, the ||/&& might also be a binary
       // operator that was misinterpreted because we are parsing template
       // parameters.
       // FIXME: This is getting out of hand, write a decent parser.
       if (CurrentToken->Previous->isOneOf(tok::pipepipe, tok::ampamp) &&
           CurrentToken->Previous->is(TT_BinaryOperator) &&
           Contexts[Contexts.size() - 2].IsExpression &&
-          !Line.startsWith(tok::kw_template))
+          !Line.startsWith(tok::kw_template)) {
         return false;
+      }
       updateParameterCount(Left, CurrentToken);
       if (Style.Language == FormatStyle::LK_Proto) {
         if (FormatToken *Previous = CurrentToken->getPreviousNonComment()) {
           if (CurrentToken->is(tok::colon) ||
               (CurrentToken->isOneOf(tok::l_brace, tok::less) &&
-               Previous->isNot(tok::colon)))
+               Previous->isNot(tok::colon))) {
             Previous->setType(TT_SelectorName);
           }
         }
+      }
       if (!consumeToken())
         return false;
     }
     return false;
   }
 
   bool parseUntouchableParens() {
     while (CurrentToken) {
if (OpeningParen.Previous &&
       OpeningParen.Finalized = true;
       return parseUntouchableParens();
     }
 
     bool StartsObjCMethodExpr = false;
     if (FormatToken *MaybeSel = OpeningParen.Previous) {
       // @selector( starts a selector.
       if (MaybeSel->isObjCAtKeyword(tok::objc_selector) && MaybeSel->Previous &&
-          MaybeSel->Previous->is(tok::at))
+          MaybeSel->Previous->is(tok::at)) {
         StartsObjCMethodExpr = true;
       }
+    }
 
     if (OpeningParen.is(TT_OverloadedOperatorLParen)) {
       // Find the previous kw_operator token.
       FormatToken *Prev = &OpeningParen;
       while (!Prev->is(tok::kw_operator)) {
         Prev = Prev->Previous;
         assert(Prev && "Expect a kw_operator prior to the OperatorLParen!");
       }
while (CurrentToken) {
             Prev->setType(TT_BinaryOperator);
             LookForDecls = false;
           }
         }
       }
 
       if (CurrentToken->Previous->is(TT_PointerOrReference) &&
           CurrentToken->Previous->Previous->isOneOf(tok::l_paren,
-                                                    tok::coloncolon))
+                                                    tok::coloncolon)) {
         ProbablyFunctionType = true;
+      }
       if (CurrentToken->is(tok::comma))
         MightBeFunctionType = false;
       if (CurrentToken->Previous->is(TT_BinaryOperator))
         Contexts.back().IsExpression = true;
       if (CurrentToken->is(tok::r_paren)) {
         if (OpeningParen.isNot(TT_CppCastLParen) && MightBeFunctionType &&
             ProbablyFunctionType && CurrentToken->Next &&
             (CurrentToken->Next->is(tok::l_paren) ||
-             (CurrentToken->Next->is(tok::l_square) && Line.MustBeDeclaration)))
+             (CurrentToken->Next->is(tok::l_square) &&
+              Line.MustBeDeclaration))) {
           OpeningParen.setType(OpeningParen.Next->is(tok::caret)
                                    ? TT_ObjCBlockLParen
                                    : TT_FunctionTypeLParen);
+        }
         OpeningParen.MatchingParen = CurrentToken;
         CurrentToken->MatchingParen = &OpeningParen;
 
         if (CurrentToken->Next && CurrentToken->Next->is(tok::l_brace) &&
             OpeningParen.Previous && OpeningParen.Previous->is(tok::l_paren)) {
           // Detect the case where macros are used to generate lambdas or
           // function bodies, e.g.:
           //   auto my_lambda = MACRO((Type *type, int i) { .. body .. });
           for (FormatToken *Tok = &OpeningParen; Tok != CurrentToken;
-               Tok = Tok->Next)
+               Tok = Tok->Next) {
             if (Tok->is(TT_BinaryOperator) &&
-                Tok->isOneOf(tok::star, tok::amp, tok::ampamp))
+                Tok->isOneOf(tok::star, tok::amp, tok::ampamp)) {
               Tok->setType(TT_PointerOrReference);
             }
+          }
+        }
 
         if (StartsObjCMethodExpr) {
           CurrentToken->setType(TT_ObjCMethodExpr);
           if (Contexts.back().FirstObjCSelectorName) {
             Contexts.back().FirstObjCSelectorName->LongestObjCSelectorName =
                 Contexts.back().LongestObjCSelectorName;
           }
         }
 
         if (OpeningParen.is(TT_AttributeParen))
           CurrentToken->setType(TT_AttributeParen);
         if (OpeningParen.is(TT_TypeDeclarationParen))
           CurrentToken->setType(TT_TypeDeclarationParen);
         if (OpeningParen.Previous &&
-            OpeningParen.Previous->is(TT_JavaAnnotation))
+            OpeningParen.Previous->is(TT_JavaAnnotation)) {
           CurrentToken->setType(TT_JavaAnnotation);
+        }
         if (OpeningParen.Previous &&
-            OpeningParen.Previous->is(TT_LeadingJavaAnnotation))
+            OpeningParen.Previous->is(TT_LeadingJavaAnnotation)) {
           CurrentToken->setType(TT_LeadingJavaAnnotation);
+        }
         if (OpeningParen.Previous &&
-            OpeningParen.Previous->is(TT_AttributeSquare))
+            OpeningParen.Previous->is(TT_AttributeSquare)) {
           CurrentToken->setType(TT_AttributeSquare);
+        }
 
         if (!HasMultipleLines)
           OpeningParen.setPackingKind(PPK_Inconclusive);
         else if (HasMultipleParametersOnALine)
           OpeningParen.setPackingKind(PPK_BinPacked);
         else
           OpeningParen.setPackingKind(PPK_OnePerLine);
 
         next();
         return true;
       }
       if (CurrentToken->isOneOf(tok::r_square, tok::r_brace))
         return false;
 
       if (CurrentToken->is(tok::l_brace) && OpeningParen.is(TT_ObjCBlockLParen))
         OpeningParen.setType(TT_Unknown);
       if (CurrentToken->is(tok::comma) && CurrentToken->Next &&
           !CurrentToken->Next->HasUnescapedNewline &&
-          !CurrentToken->Next->isTrailingComment())
+          !CurrentToken->Next->isTrailingComment()) {
         HasMultipleParametersOnALine = true;
+      }
       bool ProbablyFunctionTypeLParen =
           (CurrentToken->is(tok::l_paren) && CurrentToken->Next &&
            CurrentToken->Next->isOneOf(tok::star, tok::amp, tok::caret));
       if ((CurrentToken->Previous->isOneOf(tok::kw_const, tok::kw_auto) ||
            CurrentToken->Previous->isSimpleTypeSpecifier()) &&
           !(CurrentToken->is(tok::l_brace) ||
-            (CurrentToken->is(tok::l_paren) && !ProbablyFunctionTypeLParen)))
+            (CurrentToken->is(tok::l_paren) && !ProbablyFunctionTypeLParen))) {
         Contexts.back().IsExpression = false;
+      }
       if (CurrentToken->isOneOf(tok::semi, tok::colon)) {
         MightBeObjCForRangeLoop = false;
         if (PossibleObjCForInToken) {
           PossibleObjCForInToken->setType(TT_Unknown);
           PossibleObjCForInToken = nullptr;
         }
       }
       if (MightBeObjCForRangeLoop && CurrentToken->is(Keywords.kw_in)) {
bool isCSharpAttributeSpecifier(const FormatToken &Tok) {
     // Allow an attribute to be the only content of a file.
     AttrTok = AttrTok->Next;
     if (!AttrTok)
       return true;
 
     // Limit this to being an access modifier that follows.
     if (AttrTok->isOneOf(tok::kw_public, tok::kw_private, tok::kw_protected,
                          tok::comment, tok::kw_class, tok::kw_static,
-                         tok::l_square, Keywords.kw_internal))
+                         tok::l_square, Keywords.kw_internal)) {
       return true;
+    }
 
     // incase its a [XXX] retval func(....
     if (AttrTok->Next &&
-        AttrTok->Next->startsSequence(tok::identifier, tok::l_paren))
+        AttrTok->Next->startsSequence(tok::identifier, tok::l_paren)) {
       return true;
+    }
 
     return false;
   }
 
   bool isCpp11AttributeSpecifier(const FormatToken &Tok) {
     if (!Style.isCpp() || !Tok.startsSequence(tok::l_square, tok::l_square))
       return false;
     // The first square bracket is part of an ObjC array literal
bool isCpp11AttributeSpecifier(const FormatToken &Tok) {
     if (AttrTok->isNot(tok::identifier))
       return false;
     while (AttrTok && !AttrTok->startsSequence(tok::r_square, tok::r_square)) {
       // ObjC message send. We assume nobody will use : in a C++11 attribute
       // specifier parameter, although this is technically valid:
       // [[foo(:)]].
       if (AttrTok->is(tok::colon) ||
           AttrTok->startsSequence(tok::identifier, tok::identifier) ||
-          AttrTok->startsSequence(tok::r_paren, tok::identifier))
+          AttrTok->startsSequence(tok::r_paren, tok::identifier)) {
         return false;
+      }
       if (AttrTok->is(tok::ellipsis))
         return true;
       AttrTok = AttrTok->Next;
     }
     return AttrTok && AttrTok->startsSequence(tok::r_square, tok::r_square);
   }
 
   bool parseSquare() {
bool parseSquare() {
     Contexts.back().ColonIsObjCMethodExpr = StartsObjCMethodExpr;
     Contexts.back().InCpp11AttributeSpecifier = IsCpp11AttributeSpecifier;
     Contexts.back().InCSharpAttributeSpecifier = IsCSharpAttributeSpecifier;
 
     while (CurrentToken) {
       if (CurrentToken->is(tok::r_square)) {
         if (IsCpp11AttributeSpecifier)
           CurrentToken->setType(TT_AttributeSquare);
-        if (IsCSharpAttributeSpecifier)
+        if (IsCSharpAttributeSpecifier) {
           CurrentToken->setType(TT_AttributeSquare);
-        else if (((CurrentToken->Next &&
+        } else if (((CurrentToken->Next &&
                      CurrentToken->Next->is(tok::l_paren)) ||
                     (CurrentToken->Previous &&
                      CurrentToken->Previous->Previous == Left)) &&
                    Left->is(TT_ObjCMethodExpr)) {
           // An ObjC method call is rarely followed by an open parenthesis. It
           // also can't be composed of just one token, unless it's a macro that
           // will be expanded to more tokens.
           // FIXME: Do we incorrectly label ":" with this?
           StartsObjCMethodExpr = false;
           Left->setType(TT_Unknown);
         }
         if (StartsObjCMethodExpr && CurrentToken->Previous != Left) {
           CurrentToken->setType(TT_ObjCMethodExpr);
           // If we haven't seen a colon yet, make sure the last identifier
           // before the r_square is tagged as a selector name component.
           if (!ColonFound && CurrentToken->Previous &&
               CurrentToken->Previous->is(TT_Unknown) &&
-              canBeObjCSelectorComponent(*CurrentToken->Previous))
+              canBeObjCSelectorComponent(*CurrentToken->Previous)) {
             CurrentToken->Previous->setType(TT_SelectorName);
+          }
           // determineStarAmpUsage() thinks that '*' '[' is allocating an
           // array of pointers, but if '[' starts a selector then '*' is a
           // binary operator.
           if (Parent && Parent->is(TT_PointerOrReference))
             Parent->overwriteFixedType(TT_BinaryOperator);
         }
         // An arrow after an ObjC method expression is not a lambda arrow.
         if (CurrentToken->getType() == TT_ObjCMethodExpr &&
-            CurrentToken->Next && CurrentToken->Next->is(TT_LambdaArrow))
+            CurrentToken->Next && CurrentToken->Next->is(TT_LambdaArrow)) {
           CurrentToken->Next->overwriteFixedType(TT_Unknown);
+        }
         Left->MatchingParen = CurrentToken;
         CurrentToken->MatchingParen = Left;
         // FirstObjCSelectorName is set when a colon is found. This does
         // not work, however, when the method has no parameters.
         // Here, we set FirstObjCSelectorName when the end of the method call is
         // reached, in case it was not set already.
         if (!Contexts.back().FirstObjCSelectorName) {
           FormatToken *Previous = CurrentToken->getPreviousNonComment();
while (CurrentToken) {
           // Remember that this is a [[using ns: foo]] C++ attribute, so we
           // don't add a space before the colon (unlike other colons).
           CurrentToken->setType(TT_AttributeColon);
         } else if (Left->isOneOf(TT_ArraySubscriptLSquare,
                                  TT_DesignatedInitializerLSquare)) {
           Left->setType(TT_ObjCMethodExpr);
           StartsObjCMethodExpr = true;
           Contexts.back().ColonIsObjCMethodExpr = true;
-          if (Parent && Parent->is(tok::r_paren))
+          if (Parent && Parent->is(tok::r_paren)) {
             // FIXME(bug 36976): ObjC return types shouldn't use TT_CastRParen.
             Parent->setType(TT_CastRParen);
           }
+        }
         ColonFound = true;
       }
       if (CurrentToken->is(tok::comma) && Left->is(TT_ObjCMethodExpr) &&
-          !ColonFound)
+          !ColonFound) {
         Left->setType(TT_ArrayInitializerLSquare);
+      }
       FormatToken *Tok = CurrentToken;
       if (!consumeToken())
         return false;
       updateParameterCount(Left, Tok);
     }
     return false;
   }
 
if (Contexts.back().CaretFound)
       OpeningBrace.overwriteFixedType(TT_ObjCBlockLBrace);
     Contexts.back().CaretFound = false;
 
     ScopedContextCreator ContextCreator(*this, tok::l_brace, 1);
     Contexts.back().ColonIsDictLiteral = true;
     if (OpeningBrace.is(BK_BracedInit))
       Contexts.back().IsExpression = true;
     if (Style.isJavaScript() && OpeningBrace.Previous &&
-        OpeningBrace.Previous->is(TT_JsTypeColon))
+        OpeningBrace.Previous->is(TT_JsTypeColon)) {
       Contexts.back().IsExpression = false;
+    }
 
     unsigned CommaCount = 0;
     while (CurrentToken) {
       if (CurrentToken->is(tok::r_brace)) {
         assert(OpeningBrace.Optional == CurrentToken->Optional);
         OpeningBrace.MatchingParen = CurrentToken;
         CurrentToken->MatchingParen = &OpeningBrace;
         if (Style.AlignArrayOfStructures != FormatStyle::AIAS_None) {
           if (OpeningBrace.ParentBracket == tok::l_brace &&
-              couldBeInStructArrayInitializer() && CommaCount > 0)
+              couldBeInStructArrayInitializer() && CommaCount > 0) {
             Contexts.back().ContextType = Context::StructArrayInitializer;
           }
+        }
         next();
         return true;
       }
       if (CurrentToken->isOneOf(tok::r_paren, tok::r_square))
         return false;
       updateParameterCount(&OpeningBrace, CurrentToken);
       if (CurrentToken->isOneOf(tok::colon, tok::l_brace, tok::less)) {
         FormatToken *Previous = CurrentToken->getPreviousNonComment();
         if (Previous->is(TT_JsTypeOptionalQuestion))
           Previous = Previous->getPreviousNonComment();
         if ((CurrentToken->is(tok::colon) &&
              (!Contexts.back().ColonIsDictLiteral || !Style.isCpp())) ||
             Style.Language == FormatStyle::LK_Proto ||
             Style.Language == FormatStyle::LK_TextProto) {
           OpeningBrace.setType(TT_DictLiteral);
           if (Previous->Tok.getIdentifierInfo() ||
-              Previous->is(tok::string_literal))
+              Previous->is(tok::string_literal)) {
             Previous->setType(TT_SelectorName);
           }
+        }
         if (CurrentToken->is(tok::colon) && OpeningBrace.is(TT_Unknown))
           OpeningBrace.setType(TT_DictLiteral);
         else if (Style.isJavaScript())
           OpeningBrace.overwriteFixedType(TT_DictLiteral);
       }
       if (CurrentToken->is(tok::comma)) {
         if (Style.isJavaScript())
           OpeningBrace.overwriteFixedType(TT_DictLiteral);
case tok::colon:
             // FIXME(bug 36976): ObjC return types shouldn't use TT_CastRParen.
             !(BeforePrevious->is(TT_CastRParen) ||
               (BeforePrevious->is(TT_ObjCMethodExpr) &&
                BeforePrevious->is(tok::colon))) ||
             BeforePrevious->is(tok::r_square) ||
             Contexts.back().LongestObjCSelectorName == 0 ||
             UnknownIdentifierInMethodDeclaration) {
           Tok->Previous->setType(TT_SelectorName);
-          if (!Contexts.back().FirstObjCSelectorName)
+          if (!Contexts.back().FirstObjCSelectorName) {
             Contexts.back().FirstObjCSelectorName = Tok->Previous;
-          else if (Tok->Previous->ColumnWidth >
-                   Contexts.back().LongestObjCSelectorName)
+          } else if (Tok->Previous->ColumnWidth >
+                     Contexts.back().LongestObjCSelectorName) {
             Contexts.back().LongestObjCSelectorName =
                 Tok->Previous->ColumnWidth;
+          }
           Tok->Previous->ParameterIndex =
               Contexts.back().FirstObjCSelectorName->ObjCSelectorNameParts;
           ++Contexts.back().FirstObjCSelectorName->ObjCSelectorNameParts;
         }
       } else if (Contexts.back().ColonIsForRangeExpr) {
         Tok->setType(TT_RangeBasedForLoopColon);
       } else if (CurrentToken && CurrentToken->is(tok::numeric_constant)) {
         Tok->setType(TT_BitFieldColon);
       } else if (Contexts.size() == 1 &&
                  !Line.First->isOneOf(tok::kw_enum, tok::kw_case,
                                       tok::kw_default)) {
         FormatToken *Prev = Tok->getPreviousNonComment();
         if (!Prev)
           break;
-        if (Prev->isOneOf(tok::r_paren, tok::kw_noexcept))
+        if (Prev->isOneOf(tok::r_paren, tok::kw_noexcept)) {
           Tok->setType(TT_CtorInitializerColon);
-        else if (Prev->is(tok::kw_try)) {
+        } else if (Prev->is(tok::kw_try)) {
           // Member initializer list within function try block.
           FormatToken *PrevPrev = Prev->getPreviousNonComment();
           if (!PrevPrev)
             break;
           if (PrevPrev && PrevPrev->isOneOf(tok::r_paren, tok::kw_noexcept))
             Tok->setType(TT_CtorInitializerColon);
-        } else
+        } else {
           Tok->setType(TT_InheritanceColon);
+        }
       } else if (canBeObjCSelectorComponent(*Tok->Previous) && Tok->Next &&
                  (Tok->Next->isOneOf(tok::r_paren, tok::comma) ||
                   (canBeObjCSelectorComponent(*Tok->Next) && Tok->Next->Next &&
                    Tok->Next->Next->is(tok::colon)))) {
         // This handles a special macro in ObjC code where selectors including
         // the colon are passed as macro arguments.
         Tok->setType(TT_ObjCMethodExpr);
       } else if (Contexts.back().ContextKind == tok::l_paren) {
         Tok->setType(TT_InlineASMColon);
       }
       break;
     case tok::pipe:
     case tok::amp:
       // | and & in declarations/type expressions represent union and
       // intersection types, respectively.
       if (Style.isJavaScript() && !Contexts.back().IsExpression)
         Tok->setType(TT_JsTypeOperator);
       break;
     case tok::kw_if:
       if (CurrentToken &&
-          CurrentToken->isOneOf(tok::kw_constexpr, tok::identifier))
+          CurrentToken->isOneOf(tok::kw_constexpr, tok::identifier)) {
         next();
+      }
       LLVM_FALLTHROUGH;
     case tok::kw_while:
       if (CurrentToken && CurrentToken->is(tok::l_paren)) {
         next();
         if (!parseParens(/*LookForDecls=*/true))
           return false;
       }
       break;
     case tok::kw_for:
       if (Style.isJavaScript()) {
         // x.for and {for: ...}
         if ((Tok->Previous && Tok->Previous->is(tok::period)) ||
-            (Tok->Next && Tok->Next->is(tok::colon)))
+            (Tok->Next && Tok->Next->is(tok::colon))) {
           break;
+        }
         // JS' for await ( ...
         if (CurrentToken && CurrentToken->is(Keywords.kw_await))
           next();
       }
       if (Style.isCpp() && CurrentToken && CurrentToken->is(tok::kw_co_await))
         next();
       Contexts.back().ColonIsForRangeExpr = true;
       if (!CurrentToken || CurrentToken->isNot(tok::l_paren))
case tok::l_paren:
         Tok->setType(TT_OverloadedOperatorLParen);
       }
 
       if (!parseParens())
         return false;
       if (Line.MustBeDeclaration && Contexts.size() == 1 &&
           !Contexts.back().IsExpression && !Line.startsWith(TT_ObjCProperty) &&
           !Tok->isOneOf(TT_TypeDeclarationParen, TT_RequiresExpressionLParen) &&
-          (!Tok->Previous || !Tok->Previous->isOneOf(tok::kw___attribute,
-                                                     TT_LeadingJavaAnnotation)))
+          (!Tok->Previous ||
+           !Tok->Previous->isOneOf(tok::kw___attribute,
+                                   TT_LeadingJavaAnnotation))) {
         Line.MightBeFunctionDecl = true;
+      }
       break;
     case tok::l_square:
       if (!parseSquare())
         return false;
       break;
     case tok::l_brace:
       if (Style.Language == FormatStyle::LK_TextProto) {
         FormatToken *Previous = Tok->getPreviousNonComment();
bool consumeToken() {
     case tok::greater:
       if (Style.Language != FormatStyle::LK_TextProto)
         Tok->setType(TT_BinaryOperator);
       if (Tok->Previous && Tok->Previous->is(TT_TemplateCloser))
         Tok->SpacesRequiredBefore = 1;
       break;
     case tok::kw_operator:
       if (Style.Language == FormatStyle::LK_TextProto ||
-          Style.Language == FormatStyle::LK_Proto)
+          Style.Language == FormatStyle::LK_Proto) {
         break;
+      }
       while (CurrentToken &&
              !CurrentToken->isOneOf(tok::l_paren, tok::semi, tok::r_paren)) {
         if (CurrentToken->isOneOf(tok::star, tok::amp))
           CurrentToken->setType(TT_PointerOrReference);
         consumeToken();
         if (CurrentToken && CurrentToken->is(tok::comma) &&
-            CurrentToken->Previous->isNot(tok::kw_operator))
+            CurrentToken->Previous->isNot(tok::kw_operator)) {
           break;
+        }
         if (CurrentToken && CurrentToken->Previous->isOneOf(
                                 TT_BinaryOperator, TT_UnaryOperator, tok::comma,
-                                tok::star, tok::arrow, tok::amp, tok::ampamp))
+                                tok::star, tok::arrow, tok::amp, tok::ampamp)) {
           CurrentToken->Previous->setType(TT_OverloadedOperator);
         }
+      }
       if (CurrentToken && CurrentToken->is(tok::l_paren))
         CurrentToken->setType(TT_OverloadedOperatorLParen);
       if (CurrentToken && CurrentToken->Previous->is(TT_BinaryOperator))
         CurrentToken->Previous->setType(TT_OverloadedOperator);
       break;
     case tok::question:
       if (Style.isJavaScript() && Tok->Next &&
           Tok->Next->isOneOf(tok::semi, tok::comma, tok::colon, tok::r_paren,
                              tok::r_brace)) {
         // Question marks before semicolons, colons, etc. indicate optional
         // types (fields, parameters), e.g.
         //   function(x?: string, y?) {...}
         //   class X { y?; }
         Tok->setType(TT_JsTypeOptionalQuestion);
         break;
       }
       // Declarations cannot be conditional expressions, this can only be part
       // of a type declaration.
       if (Line.MustBeDeclaration && !Contexts.back().IsExpression &&
-          Style.isJavaScript())
+          Style.isJavaScript()) {
         break;
+      }
       if (Style.isCSharp()) {
         // `Type?)`, `Type?>`, `Type? name;` and `Type? name =` can only be
         // nullable types.
         // Line.MustBeDeclaration will be true for `Type? name;`.
         if ((!Contexts.back().IsExpression && Line.MustBeDeclaration) ||
             (Tok->Next && Tok->Next->isOneOf(tok::r_paren, tok::greater)) ||
             (Tok->Next && Tok->Next->is(tok::identifier) && Tok->Next->Next &&
              Tok->Next->Next->is(tok::equal))) {
case tok::comma:
         }
         break;
       }
       if (Contexts.back().ContextType == Context::ForEachMacro)
         Contexts.back().IsExpression = true;
       break;
     case tok::identifier:
       if (Tok->isOneOf(Keywords.kw___has_include,
-                       Keywords.kw___has_include_next))
+                       Keywords.kw___has_include_next)) {
         parseHasInclude();
+      }
       if (Style.isCSharp() && Tok->is(Keywords.kw_where) && Tok->Next &&
           Tok->Next->isNot(tok::l_paren)) {
         Tok->setType(TT_CSharpGenericTypeConstraint);
         parseCSharpGenericTypeConstraint();
       }
       break;
     case tok::arrow:
       if (Tok->isNot(TT_LambdaArrow) && Tok->Previous &&
-          Tok->Previous->is(tok::kw_noexcept))
+          Tok->Previous->is(tok::kw_noexcept)) {
         Tok->setType(TT_TrailingReturnArrow);
+      }
       break;
     default:
       break;
     }
     return true;
   }
 
   void parseCSharpGenericTypeConstraint() {

 
   void parseIncludeDirective() {
     if (CurrentToken && CurrentToken->is(tok::less)) {
       next();
       while (CurrentToken) {
         // Mark tokens up to the trailing line comments as implicit string
         // literals.
         if (CurrentToken->isNot(tok::comment) &&
-            !CurrentToken->TokenText.startswith("//"))
+            !CurrentToken->TokenText.startswith("//")) {
           CurrentToken->setType(TT_ImplicitStringLiteral);
+        }
         next();
       }
     }
   }
 
   void parseWarningOrError() {
     next();
     // We still want to format the whitespace left of the first token of the
     // warning or error.
     next();
     while (CurrentToken) {
       CurrentToken->setType(TT_ImplicitStringLiteral);
       next();
     }
   }
 
   void parsePragma() {
     next(); // Consume "pragma".
     if (CurrentToken &&
-        CurrentToken->isOneOf(Keywords.kw_mark, Keywords.kw_option, Keywords.kw_region)) {
+        CurrentToken->isOneOf(Keywords.kw_mark, Keywords.kw_option,
+                              Keywords.kw_region)) {
       bool IsMark = CurrentToken->is(Keywords.kw_mark);
       next();
       next(); // Consume first token (so we fix leading whitespace).
       while (CurrentToken) {
         if (IsMark || CurrentToken->Previous->is(TT_BinaryOperator))
           CurrentToken->setType(TT_ImplicitStringLiteral);
         next();
       }
case tok::pp_elif:
       parseLine();
       break;
     default:
       break;
     }
     while (CurrentToken) {
       FormatToken *Tok = CurrentToken;
       next();
-      if (Tok->is(tok::l_paren))
+      if (Tok->is(tok::l_paren)) {
         parseParens();
-      else if (Tok->isOneOf(Keywords.kw___has_include,
-                            Keywords.kw___has_include_next))
+      } else if (Tok->isOneOf(Keywords.kw___has_include,
+                              Keywords.kw___has_include_next)) {
         parseHasInclude();
       }
+    }
     return Type;
   }
 
 public:
   LineType parseLine() {
     if (!CurrentToken)
       return LT_Invalid;
     NonTemplateLess.clear();
while (CurrentToken) {
         // export {...} from '...';
         // An export followed by "from 'some string';" is a re-export from
         // another module identified by a URI and is treated as a
         // LT_ImportStatement (i.e. prevent wraps on it for long URIs).
         // Just "export {...};" or "export class ..." should not be treated as
         // an import in this sense.
         if (Line.First->is(tok::kw_export) &&
             CurrentToken->is(Keywords.kw_from) && CurrentToken->Next &&
-            CurrentToken->Next->isStringLiteral())
+            CurrentToken->Next->isStringLiteral()) {
           ImportStatement = true;
+        }
         if (isClosureImportStatement(*CurrentToken))
           ImportStatement = true;
       }
       if (!consumeToken())
         return LT_Invalid;
     }
     if (KeywordVirtualFound)
       return LT_VirtualFunctionDecl;
     if (ImportStatement)
       return LT_ImportStatement;
 
     if (Line.startsWith(TT_ObjCMethodSpecifier)) {
-      if (Contexts.back().FirstObjCSelectorName)
+      if (Contexts.back().FirstObjCSelectorName) {
         Contexts.back().FirstObjCSelectorName->LongestObjCSelectorName =
             Contexts.back().LongestObjCSelectorName;
+      }
       return LT_ObjCMethodDecl;
     }
 
     for (const auto &ctx : Contexts)
       if (ctx.ContextType == Context::StructArrayInitializer)
         return LT_ArrayOfStructInitializer;
 
     return LT_Other;
if (!CurrentToken->isTypeFinalized() &&
             TT_ImplicitStringLiteral, TT_InlineASMBrace, TT_FatArrow,
             TT_LambdaArrow, TT_NamespaceMacro, TT_OverloadedOperator,
             TT_RegexLiteral, TT_TemplateString, TT_ObjCStringLiteral,
             TT_UntouchableMacroFunc, TT_StatementAttributeLikeMacro,
             TT_FunctionLikeOrFreestandingMacro, TT_ClassLBrace, TT_EnumLBrace,
             TT_RecordLBrace, TT_StructLBrace, TT_UnionLBrace, TT_RequiresClause,
             TT_RequiresClauseInARequiresExpression, TT_RequiresExpression,
             TT_RequiresExpressionLParen, TT_RequiresExpressionLBrace,
-            TT_CompoundRequirementLBrace, TT_BracedListLBrace))
+            TT_CompoundRequirementLBrace, TT_BracedListLBrace)) {
       CurrentToken->setType(TT_Unknown);
+    }
     CurrentToken->Role.reset();
     CurrentToken->MatchingParen = nullptr;
     CurrentToken->FakeLParens.clear();
     CurrentToken->FakeRParens = 0;
   }
 
   void next() {
     if (!CurrentToken)
auto AssignmentStartsExpression = [&]() {
         Tok = Tok->MatchingParen;
         if (!Tok)
           return false;
         Tok = Tok->getNextNonComment();
         if (!Tok)
           return false;
 
         if (Tok->isOneOf(tok::kw_class, tok::kw_enum, tok::kw_concept,
-                         tok::kw_struct, tok::kw_using))
+                         tok::kw_struct, tok::kw_using)) {
           return false;
+        }
 
         return true;
       }
 
       // Type aliases use `type X = ...;` in TypeScript and can be exported
       // using `export type ...`.
       if (Style.isJavaScript() &&
           (Line.startsWith(Keywords.kw_type, tok::identifier) ||
-           Line.startsWith(tok::kw_export, Keywords.kw_type, tok::identifier)))
+           Line.startsWith(tok::kw_export, Keywords.kw_type,
+                           tok::identifier))) {
         return false;
+      }
 
       return !Current.Previous || Current.Previous->isNot(tok::kw_operator);
     };
 
     if (AssignmentStartsExpression()) {
       Contexts.back().IsExpression = true;
       if (!Line.startsWith(TT_UnaryOperator)) {
         for (FormatToken *Previous = Current.Previous;
              Previous && Previous->Previous &&
              !Previous->Previous->isOneOf(tok::comma, tok::semi);
              Previous = Previous->Previous) {
           if (Previous->isOneOf(tok::r_square, tok::r_paren)) {
             Previous = Previous->MatchingParen;
             if (!Previous)
               break;
           }
           if (Previous->opensScope())
             break;
           if (Previous->isOneOf(TT_BinaryOperator, TT_UnaryOperator) &&
               Previous->isOneOf(tok::star, tok::amp, tok::ampamp) &&
-              Previous->Previous && Previous->Previous->isNot(tok::equal))
+              Previous->Previous && Previous->Previous->isNot(tok::equal)) {
             Previous->setType(TT_PointerOrReference);
           }
         }
+      }
     } else if (Current.is(tok::lessless) &&
                (!Current.Previous || !Current.Previous->is(tok::kw_operator))) {
       Contexts.back().IsExpression = true;
     } else if (Current.isOneOf(tok::kw_return, tok::kw_throw)) {
       Contexts.back().IsExpression = true;
     } else if (Current.is(TT_TrailingReturnArrow)) {
       Contexts.back().IsExpression = false;
     } else if (Current.is(TT_LambdaArrow) || Current.is(Keywords.kw_assert)) {
       Contexts.back().IsExpression = Style.Language == FormatStyle::LK_Java;
     } else if (Current.Previous &&
                Current.Previous->is(TT_CtorInitializerColon)) {
       Contexts.back().IsExpression = true;
       Contexts.back().ContextType = Context::CtorInitializer;
     } else if (Current.Previous && Current.Previous->is(TT_InheritanceColon)) {
       Contexts.back().ContextType = Context::InheritanceList;
     } else if (Current.isOneOf(tok::r_paren, tok::greater, tok::comma)) {
       for (FormatToken *Previous = Current.Previous;
            Previous && Previous->isOneOf(tok::star, tok::amp);
-           Previous = Previous->Previous)
+           Previous = Previous->Previous) {
         Previous->setType(TT_PointerOrReference);
+      }
       if (Line.MustBeDeclaration &&
-          Contexts.front().ContextType != Context::CtorInitializer)
+          Contexts.front().ContextType != Context::CtorInitializer) {
         Contexts.back().IsExpression = false;
+      }
     } else if (Current.is(tok::kw_new)) {
       Contexts.back().CanBeExpression = false;
     } else if (Current.is(tok::semi) ||
                (Current.is(tok::exclaim) && Current.Previous &&
                 !Current.Previous->is(tok::kw_operator))) {
       // This should be the condition or increment in a for-loop.
       // But not operator !() (can't use TT_OverloadedOperator here as its not
       // been annotated yet).
if (Current.Previous && Current.Previous->is(tok::r_paren) &&
             Current.Previous->MatchingParen->Previous;
 
         // Differentiate a deduction guide by seeing the
         // > of the template prior to the leading identifier.
         if (LeadingIdentifier) {
           FormatToken *PriorLeadingIdentifier = LeadingIdentifier->Previous;
           // Skip back past explicit decoration
           if (PriorLeadingIdentifier &&
-              PriorLeadingIdentifier->is(tok::kw_explicit))
+              PriorLeadingIdentifier->is(tok::kw_explicit)) {
             PriorLeadingIdentifier = PriorLeadingIdentifier->Previous;
+          }
 
           return PriorLeadingIdentifier &&
                  (PriorLeadingIdentifier->is(TT_TemplateCloser) ||
                   PriorLeadingIdentifier->ClosesRequiresClause) &&
                  LeadingIdentifier->TokenText == Current.Next->TokenText;
         }
       }
     }
     return false;
   }
 
   void determineTokenType(FormatToken &Current) {
-    if (!Current.is(TT_Unknown))
+    if (!Current.is(TT_Unknown)) {
       // The token type is already known.
       return;
+    }
 
     if ((Style.isJavaScript() || Style.isCSharp()) &&
         Current.is(tok::exclaim)) {
       if (Current.Previous) {
         bool IsIdentifier =
             Style.isJavaScript()
                 ? Keywords.IsJavaScriptIdentifier(
                       *Current.Previous, /* AcceptIdentifierName= */ true)
if (Current.is(Keywords.kw_instanceof)) {
         Current.setType(TT_ConditionalExpr);
       }
     } else if (Current.isBinaryOperator() &&
                (!Current.Previous || Current.Previous->isNot(tok::l_square)) &&
                (!Current.is(tok::greater) &&
                 Style.Language != FormatStyle::LK_TextProto)) {
       Current.setType(TT_BinaryOperator);
     } else if (Current.is(tok::comment)) {
-      if (Current.TokenText.startswith("/*"))
-        if (Current.TokenText.endswith("*/"))
+      if (Current.TokenText.startswith("/*")) {
+        if (Current.TokenText.endswith("*/")) {
           Current.setType(TT_BlockComment);
-        else
+        } else {
           // The lexer has for some reason determined a comment here. But we
           // cannot really handle it, if it isn't properly terminated.
           Current.Tok.setKind(tok::unknown);
-      else
+        }
+      } else {
         Current.setType(TT_LineComment);
+      }
     } else if (Current.is(tok::l_paren)) {
       if (lParenStartsCppCast(Current))
         Current.setType(TT_CppCastLParen);
     } else if (Current.is(tok::r_paren)) {
       if (rParenEndsCast(Current))
         Current.setType(TT_CastRParen);
       if (Current.MatchingParen && Current.Next &&
           !Current.Next->isBinaryOperator() &&
           !Current.Next->isOneOf(tok::semi, tok::colon, tok::l_brace,
                                  tok::comma, tok::period, tok::arrow,
-                                 tok::coloncolon))
+                                 tok::coloncolon)) {
         if (FormatToken *AfterParen = Current.MatchingParen->Next) {
           // Make sure this isn't the return type of an Obj-C block declaration
           if (AfterParen->isNot(tok::caret)) {
-            if (FormatToken *BeforeParen = Current.MatchingParen->Previous)
+            if (FormatToken *BeforeParen = Current.MatchingParen->Previous) {
               if (BeforeParen->is(tok::identifier) &&
                   !BeforeParen->is(TT_TypenameMacro) &&
                   BeforeParen->TokenText == BeforeParen->TokenText.upper() &&
                   (!BeforeParen->Previous ||
-                   BeforeParen->Previous->ClosesTemplateDeclaration))
+                   BeforeParen->Previous->ClosesTemplateDeclaration)) {
                 Current.setType(TT_FunctionAnnotationRParen);
               }
             }
+          }
+        }
+      }
     } else if (Current.is(tok::at) && Current.Next && !Style.isJavaScript() &&
                Style.Language != FormatStyle::LK_Java) {
       // In Java & JavaScript, "@..." is a decorator or annotation. In ObjC, it
       // marks declarations and properties that need special formatting.
       switch (Current.Next->Tok.getObjCKeywordID()) {
       case tok::objc_interface:
       case tok::objc_implementation:
       case tok::objc_protocol:
         Current.setType(TT_ObjCDecl);
         break;
       case tok::objc_property:
         Current.setType(TT_ObjCProperty);
         break;
       default:
         break;
       }
     } else if (Current.is(tok::period)) {
       FormatToken *PreviousNoComment = Current.getPreviousNonComment();
       if (PreviousNoComment &&
-          PreviousNoComment->isOneOf(tok::comma, tok::l_brace))
+          PreviousNoComment->isOneOf(tok::comma, tok::l_brace)) {
         Current.setType(TT_DesignatedInitializerPeriod);
-      else if (Style.Language == FormatStyle::LK_Java && Current.Previous &&
+      } else if (Style.Language == FormatStyle::LK_Java && Current.Previous &&
                  Current.Previous->isOneOf(TT_JavaAnnotation,
-                                         TT_LeadingJavaAnnotation))
+                                           TT_LeadingJavaAnnotation)) {
         Current.setType(Current.Previous->getType());
+      }
     } else if (canBeObjCSelectorComponent(Current) &&
                // FIXME(bug 36976): ObjC return types shouldn't use
                // TT_CastRParen.
                Current.Previous && Current.Previous->is(TT_CastRParen) &&
                Current.Previous->MatchingParen &&
                Current.Previous->MatchingParen->Previous &&
                Current.Previous->MatchingParen->Previous->is(
                    TT_ObjCMethodSpecifier)) {
private:
   ///
   /// This is a heuristic based on whether \p Tok is an identifier following
   /// something that is likely a type.
   bool isStartOfName(const FormatToken &Tok) {
     if (Tok.isNot(tok::identifier) || !Tok.Previous)
       return false;
 
     if (Tok.Previous->isOneOf(TT_LeadingJavaAnnotation, Keywords.kw_instanceof,
-                              Keywords.kw_as))
+                              Keywords.kw_as)) {
       return false;
+    }
     if (Style.isJavaScript() && Tok.Previous->is(Keywords.kw_in))
       return false;
 
     // Skip "const" as it does not have an influence on whether this is a name.
     FormatToken *PreviousNotConst = Tok.getPreviousNonComment();
 
     // For javascript const can be like "let" or "var"
     if (!Style.isJavaScript())
       while (PreviousNotConst && PreviousNotConst->is(tok::kw_const))
         PreviousNotConst = PreviousNotConst->getPreviousNonComment();
 
     if (!PreviousNotConst)
       return false;
 
     if (PreviousNotConst->ClosesRequiresClause)
       return false;
 
     bool IsPPKeyword = PreviousNotConst->is(tok::identifier) &&
                        PreviousNotConst->Previous &&
                        PreviousNotConst->Previous->is(tok::hash);
 
-    if (PreviousNotConst->is(TT_TemplateCloser))
+    if (PreviousNotConst->is(TT_TemplateCloser)) {
       return PreviousNotConst && PreviousNotConst->MatchingParen &&
              PreviousNotConst->MatchingParen->Previous &&
              PreviousNotConst->MatchingParen->Previous->isNot(tok::period) &&
              PreviousNotConst->MatchingParen->Previous->isNot(tok::kw_template);
+    }
 
     if (PreviousNotConst->is(tok::r_paren) &&
-        PreviousNotConst->is(TT_TypeDeclarationParen))
+        PreviousNotConst->is(TT_TypeDeclarationParen)) {
       return true;
+    }
 
     // If is a preprocess keyword like #define.
     if (IsPPKeyword)
       return false;
 
     // int a or auto a.
     if (PreviousNotConst->isOneOf(tok::identifier, tok::kw_auto))
       return true;
bool lParenStartsCppCast(const FormatToken &Tok) {
     // C-style casts are only used in C++.
     if (!Style.isCpp())
       return false;
 
     FormatToken *LeftOfParens = Tok.getPreviousNonComment();
     if (LeftOfParens && LeftOfParens->is(TT_TemplateCloser) &&
         LeftOfParens->MatchingParen) {
       auto *Prev = LeftOfParens->MatchingParen->getPreviousNonComment();
-      if (Prev && Prev->isOneOf(tok::kw_const_cast, tok::kw_dynamic_cast,
-                                tok::kw_reinterpret_cast, tok::kw_static_cast))
+      if (Prev &&
+          Prev->isOneOf(tok::kw_const_cast, tok::kw_dynamic_cast,
+                        tok::kw_reinterpret_cast, tok::kw_static_cast)) {
         // FIXME: Maybe we should handle identifiers ending with "_cast",
         // e.g. any_cast?
         return true;
       }
+    }
     return false;
   }
 
   /// Determine whether ')' is ending a cast.
   bool rParenEndsCast(const FormatToken &Tok) {
     // C-style casts are only used in C++, C# and Java.
     if (!Style.isCSharp() && !Style.isCpp() &&
-        Style.Language != FormatStyle::LK_Java)
+        Style.Language != FormatStyle::LK_Java) {
       return false;
+    }
 
     // Empty parens aren't casts and there are no casts at the end of the line.
     if (Tok.Previous == Tok.MatchingParen || !Tok.Next || !Tok.MatchingParen)
       return false;
 
     FormatToken *LeftOfParens = Tok.MatchingParen->getPreviousNonComment();
     if (LeftOfParens) {
       // If there is a closing parenthesis left of the current
       // parentheses, look past it as these might be chained casts.
       if (LeftOfParens->is(tok::r_paren) &&
           LeftOfParens->isNot(TT_CastRParen)) {
         if (!LeftOfParens->MatchingParen ||
-            !LeftOfParens->MatchingParen->Previous)
+            !LeftOfParens->MatchingParen->Previous) {
           return false;
+        }
         LeftOfParens = LeftOfParens->MatchingParen->Previous;
       }
 
       if (LeftOfParens->is(tok::r_square)) {
         //   delete[] (void *)ptr;
         auto MayBeArrayDelete = [](FormatToken *Tok) -> FormatToken * {
           if (Tok->isNot(tok::r_square))
             return nullptr;
if (LeftOfParens) {
         if (FormatToken *MaybeDelete = MayBeArrayDelete(LeftOfParens))
           LeftOfParens = MaybeDelete;
       }
 
       // The Condition directly below this one will see the operator arguments
       // as a (void *foo) cast.
       //   void operator delete(void *foo) ATTRIB;
       if (LeftOfParens->Tok.getIdentifierInfo() && LeftOfParens->Previous &&
-          LeftOfParens->Previous->is(tok::kw_operator))
+          LeftOfParens->Previous->is(tok::kw_operator)) {
         return false;
+      }
 
       // If there is an identifier (or with a few exceptions a keyword) right
       // before the parentheses, this is unlikely to be a cast.
       if (LeftOfParens->Tok.getIdentifierInfo() &&
           !LeftOfParens->isOneOf(Keywords.kw_in, tok::kw_return, tok::kw_case,
-                                 tok::kw_delete))
+                                 tok::kw_delete)) {
         return false;
+      }
 
       // Certain other tokens right before the parentheses are also signals that
       // this cannot be a cast.
       if (LeftOfParens->isOneOf(tok::at, tok::r_square, TT_OverloadedOperator,
-                                TT_TemplateCloser, tok::ellipsis))
+                                TT_TemplateCloser, tok::ellipsis)) {
         return false;
       }
+    }
 
     if (Tok.Next->is(tok::question))
       return false;
 
     // `foreach((A a, B b) in someList)` should not be seen as a cast.
     if (Tok.Next->is(Keywords.kw_in) && Style.isCSharp())
       return false;
 
     // Functions which end with decorations like volatile, noexcept are unlikely
     // to be casts.
     if (Tok.Next->isOneOf(tok::kw_noexcept, tok::kw_volatile, tok::kw_const,
                           tok::kw_requires, tok::kw_throw, tok::arrow,
                           Keywords.kw_override, Keywords.kw_final) ||
-        isCpp11AttributeSpecifier(*Tok.Next))
+        isCpp11AttributeSpecifier(*Tok.Next)) {
       return false;
+    }
 
     // As Java has no function types, a "(" after the ")" likely means that this
     // is a cast.
     if (Style.Language == FormatStyle::LK_Java && Tok.Next->is(tok::l_paren))
       return true;
 
     // If a (non-string) literal follows, this is likely a cast.
     if (Tok.Next->isNot(tok::string_literal) &&
         (Tok.Next->Tok.isLiteral() ||
-         Tok.Next->isOneOf(tok::kw_sizeof, tok::kw_alignof)))
+         Tok.Next->isOneOf(tok::kw_sizeof, tok::kw_alignof))) {
       return true;
+    }
 
     // Heuristically try to determine whether the parentheses contain a type.
     auto IsQualifiedPointerOrReference = [](FormatToken *T) {
       // This is used to handle cases such as x = (foo *const)&y;
       assert(!T->isSimpleTypeSpecifier() && "Should have already been checked");
       // Strip trailing qualifiers such as const or volatile when checking
       // whether the parens could be a cast to a pointer/reference type.
       while (T) {
bool rParenEndsCast(const FormatToken &Tok) {
     // start of the line. We assume that we have found most cases where there
     // are by the logic above, e.g. "(void)x;".
     if (!LeftOfParens)
       return false;
 
     // Certain token types inside the parentheses mean that this can't be a
     // cast.
     for (const FormatToken *Token = Tok.MatchingParen->Next; Token != &Tok;
-         Token = Token->Next)
+         Token = Token->Next) {
       if (Token->is(TT_BinaryOperator))
         return false;
+    }
 
     // If the following token is an identifier or 'this', this is a cast. All
     // cases where this can be something else are handled above.
     if (Tok.Next->isOneOf(tok::identifier, tok::kw_this))
       return true;
 
     // Look for a cast `( x ) (`.
     if (Tok.Next->is(tok::l_paren) && Tok.Previous && Tok.Previous->Previous) {
       if (Tok.Previous->is(tok::identifier) &&
-          Tok.Previous->Previous->is(tok::l_paren))
+          Tok.Previous->Previous->is(tok::l_paren)) {
         return true;
       }
+    }
 
     if (!Tok.Next->Next)
       return false;
 
     // If the next token after the parenthesis is a unary operator, assume
     // that this is cast, unless there are unexpected tokens inside the
     // parenthesis.
     bool NextIsUnary =
         Tok.Next->isUnaryOperator() || Tok.Next->isOneOf(tok::amp, tok::star);
     if (!NextIsUnary || Tok.Next->is(tok::plus) ||
-        !Tok.Next->Next->isOneOf(tok::identifier, tok::numeric_constant))
+        !Tok.Next->Next->isOneOf(tok::identifier, tok::numeric_constant)) {
       return false;
+    }
     // Search for unexpected tokens.
     for (FormatToken *Prev = Tok.Previous; Prev != Tok.MatchingParen;
-         Prev = Prev->Previous)
+         Prev = Prev->Previous) {
       if (!Prev->isOneOf(tok::kw_const, tok::identifier, tok::coloncolon))
         return false;
+    }
     return true;
   }
 
   /// Returns true if the token is used as a unary operator.
   bool determineUnaryOperatorByUsage(const FormatToken &Tok) {
     const FormatToken *PrevToken = Tok.getPreviousNonComment();
     if (!PrevToken)
       return true;
 
     // These keywords are deliberately not included here because they may
     // precede only one of unary star/amp and plus/minus but not both.  They are
     // either included in determineStarAmpUsage or determinePlusMinusCaretUsage.
     //
     // @ - It may be followed by a unary `-` in Objective-C literals. We don't
     //   know how they can be followed by a star or amp.
     if (PrevToken->isOneOf(
             TT_ConditionalExpr, tok::l_paren, tok::comma, tok::colon, tok::semi,
             tok::equal, tok::question, tok::l_square, tok::l_brace,
             tok::kw_case, tok::kw_co_await, tok::kw_co_return, tok::kw_co_yield,
-            tok::kw_delete, tok::kw_return, tok::kw_throw))
+            tok::kw_delete, tok::kw_return, tok::kw_throw)) {
       return true;
+    }
 
     // We put sizeof here instead of only in determineStarAmpUsage. In the cases
     // where the unary `+` operator is overloaded, it is reasonable to write
     // things like `sizeof +x`. Like commit 446d6ec996c6c3.
     if (PrevToken->is(tok::kw_sizeof))
       return true;
 
     // A sequence of leading unary operators.
TokenType determineStarAmpUsage(const FormatToken &Tok, bool IsExpression,
     const FormatToken *NextToken = Tok.getNextNonComment();
 
     if (InTemplateArgument && NextToken && NextToken->is(tok::kw_noexcept))
       return TT_BinaryOperator;
 
     if (!NextToken ||
         NextToken->isOneOf(tok::arrow, tok::equal, tok::kw_noexcept) ||
         NextToken->canBePointerOrReferenceQualifier() ||
-        (NextToken->is(tok::l_brace) && !NextToken->getNextNonComment()))
+        (NextToken->is(tok::l_brace) && !NextToken->getNextNonComment())) {
       return TT_PointerOrReference;
+    }
 
     if (PrevToken->is(tok::coloncolon))
       return TT_PointerOrReference;
 
     if (PrevToken->is(tok::r_paren) && PrevToken->is(TT_TypeDeclarationParen))
       return TT_PointerOrReference;
 
     if (determineUnaryOperatorByUsage(Tok))
       return TT_UnaryOperator;
 
     if (NextToken->is(tok::l_square) && NextToken->isNot(TT_LambdaLSquare))
       return TT_PointerOrReference;
     if (NextToken->is(tok::kw_operator) && !IsExpression)
       return TT_PointerOrReference;
     if (NextToken->isOneOf(tok::comma, tok::semi))
       return TT_PointerOrReference;
 
     if (PrevToken->Tok.isLiteral() ||
         PrevToken->isOneOf(tok::r_paren, tok::r_square, tok::kw_true,
-                           tok::kw_false, tok::r_brace))
+                           tok::kw_false, tok::r_brace)) {
       return TT_BinaryOperator;
+    }
 
     const FormatToken *NextNonParen = NextToken;
     while (NextNonParen && NextNonParen->is(tok::l_paren))
       NextNonParen = NextNonParen->getNextNonComment();
     if (NextNonParen && (NextNonParen->Tok.isLiteral() ||
                          NextNonParen->isOneOf(tok::kw_true, tok::kw_false) ||
-                         NextNonParen->isUnaryOperator()))
+                         NextNonParen->isUnaryOperator())) {
       return TT_BinaryOperator;
+    }
 
     // If we know we're in a template argument, there are no named declarations.
     // Thus, having an identifier on the right-hand side indicates a binary
     // operator.
     if (InTemplateArgument && NextToken->Tok.isAnyIdentifier())
       return TT_BinaryOperator;
 
     // "&&(" is quite unlikely to be two successive unary "&".
ExpressionParser(const FormatStyle &Style, const AdditionalKeywords &Keywords,
       : Style(Style), Keywords(Keywords), Line(Line), Current(Line.First) {}
 
   /// Parse expressions with the given operator precedence.
   void parse(int Precedence = 0) {
     // Skip 'return' and ObjC selector colons as they are not part of a binary
     // expression.
     while (Current && (Current->is(tok::kw_return) ||
                        (Current->is(tok::colon) &&
-                        Current->isOneOf(TT_ObjCMethodExpr, TT_DictLiteral))))
+                        Current->isOneOf(TT_ObjCMethodExpr, TT_DictLiteral)))) {
       next();
+    }
 
     if (!Current || Precedence > PrecedenceArrowAndPeriod)
       return;
 
     // Conditional expressions need to be parsed separately for proper nesting.
     if (Precedence == prec::Conditional) {
       parseConditionalExpr();
       return;
while (Current) {
 
       // At the end of the line or when an operator with higher precedence is
       // found, insert fake parenthesis and return.
       if (!Current ||
           (Current->closesScope() &&
            (Current->MatchingParen || Current->is(TT_TemplateString))) ||
           (CurrentPrecedence != -1 && CurrentPrecedence < Precedence) ||
           (CurrentPrecedence == prec::Conditional &&
-           Precedence == prec::Assignment && Current->is(tok::colon)))
+           Precedence == prec::Assignment && Current->is(tok::colon))) {
         break;
+      }
 
       // Consume scopes: (), [], <> and {}
       // In addition to that we handle require clauses as scope, so that the
       // constraints in that are correctly indented.
       if (Current->opensScope() ||
           Current->isOneOf(TT_RequiresClause,
                            TT_RequiresClauseInARequiresExpression)) {
         // In fragment of a JavaScript template string can look like '}..${' and
int getCurrentPrecedence() {
     if (Current) {
       const FormatToken *NextNonComment = Current->getNextNonComment();
       if (Current->is(TT_ConditionalExpr))
         return prec::Conditional;
       if (NextNonComment && Current->is(TT_SelectorName) &&
           (NextNonComment->isOneOf(TT_DictLiteral, TT_JsTypeColon) ||
            ((Style.Language == FormatStyle::LK_Proto ||
              Style.Language == FormatStyle::LK_TextProto) &&
-            NextNonComment->is(tok::less))))
+            NextNonComment->is(tok::less)))) {
         return prec::Assignment;
+      }
       if (Current->is(TT_JsComputedPropertyName))
         return prec::Assignment;
       if (Current->is(TT_LambdaArrow))
         return prec::Comma;
       if (Current->is(TT_FatArrow))
         return prec::Assignment;
       if (Current->isOneOf(tok::semi, TT_InlineASMColon, TT_SelectorName) ||
           (Current->is(tok::comment) && NextNonComment &&
-           NextNonComment->is(TT_SelectorName)))
+           NextNonComment->is(TT_SelectorName))) {
         return 0;
+      }
       if (Current->is(TT_RangeBasedForLoopColon))
         return prec::Comma;
       if ((Style.Language == FormatStyle::LK_Java || Style.isJavaScript()) &&
-          Current->is(Keywords.kw_instanceof))
+          Current->is(Keywords.kw_instanceof)) {
         return prec::Relational;
+      }
       if (Style.isJavaScript() &&
-          Current->isOneOf(Keywords.kw_in, Keywords.kw_as))
+          Current->isOneOf(Keywords.kw_in, Keywords.kw_as)) {
         return prec::Relational;
+      }
       if (Current->is(TT_BinaryOperator) || Current->is(tok::comma))
         return Current->getPrecedence();
       if (Current->isOneOf(tok::period, tok::arrow))
         return PrecedenceArrowAndPeriod;
       if ((Style.Language == FormatStyle::LK_Java || Style.isJavaScript()) &&
           Current->isOneOf(Keywords.kw_extends, Keywords.kw_implements,
-                           Keywords.kw_throws))
+                           Keywords.kw_throws)) {
         return 0;
       }
+    }
     return -1;
   }
 
   void addFakeParenthesis(FormatToken *Start, prec::Level Precedence,
                           FormatToken *End = nullptr) {
     Start->FakeLParens.push_back(Precedence);
     if (Precedence > prec::Unknown)
       Start->StartsBinaryExpression = true;
private:
   /// parentheses if appropriate.
   void parseUnaryOperator() {
     llvm::SmallVector<FormatToken *, 2> Tokens;
     while (Current && Current->is(TT_UnaryOperator)) {
       Tokens.push_back(Current);
       next();
     }
     parse(PrecedenceArrowAndPeriod);
-    for (FormatToken *Token : llvm::reverse(Tokens))
+    for (FormatToken *Token : llvm::reverse(Tokens)) {
       // The actual precedence doesn't matter.
       addFakeParenthesis(Token, prec::Unknown);
     }
+  }
 
   void parseConditionalExpr() {
     while (Current && Current->isTrailingComment())
       next();
     FormatToken *Start = Current;
     parse(prec::LogicalOr);
     if (!Current || !Current->is(tok::question))
       return;
     next();
     parse(prec::Assignment);
     if (!Current || Current->isNot(TT_ConditionalExpr))
       return;
     next();
     parse(prec::Assignment);
     addFakeParenthesis(Start, prec::Conditional);
   }
 
   void next(bool SkipPastLeadingComments = true) {
     if (Current)
       Current = Current->Next;
     while (Current &&
            (Current->NewlinesBefore == 0 || SkipPastLeadingComments) &&
-           Current->isTrailingComment())
+           Current->isTrailingComment()) {
       Current = Current->Next;
     }
+  }
 
   const FormatStyle &Style;
   const AdditionalKeywords &Keywords;
   const AnnotatedLine &Line;
   FormatToken *Current;
 };
 
 } // end anonymous namespace
auto skipOperatorName = [](const FormatToken *Next) -> const FormatToken * {
     for (; Next; Next = Next->Next) {
       if (Next->is(TT_OverloadedOperatorLParen))
         return Next;
       if (Next->is(TT_OverloadedOperator))
         continue;
       if (Next->isOneOf(tok::kw_new, tok::kw_delete)) {
         // For 'new[]' and 'delete[]'.
         if (Next->Next &&
-            Next->Next->startsSequence(tok::l_square, tok::r_square))
+            Next->Next->startsSequence(tok::l_square, tok::r_square)) {
           Next = Next->Next->Next;
+        }
         continue;
       }
       if (Next->startsSequence(tok::l_square, tok::r_square)) {
         // For operator[]().
         Next = Next->Next;
         continue;
       }
       if ((Next->isSimpleTypeSpecifier() || Next->is(tok::identifier)) &&
if (!Next || !Next->is(tok::l_paren) || !Next->MatchingParen)
     return false;
   // If the lines ends with "{", this is likely a function definition.
   if (Line.Last->is(tok::l_brace))
     return true;
   if (Next->Next == Next->MatchingParen)
     return true; // Empty parentheses.
   // If there is an &/&& after the r_paren, this is likely a function.
   if (Next->MatchingParen->Next &&
-      Next->MatchingParen->Next->is(TT_PointerOrReference))
+      Next->MatchingParen->Next->is(TT_PointerOrReference)) {
     return true;
+  }
 
   // Check for K&R C function definitions (and C++ function definitions with
   // unnamed parameters), e.g.:
   //   int f(i)
   //   {
   //     return i + 1;
   //   }
   //   bool g(size_t = 0, bool b = false)
   //   {
   //     return !b;
   //   }
   if (IsCpp && Next->Next && Next->Next->is(tok::identifier) &&
-      !Line.endsWith(tok::semi))
+      !Line.endsWith(tok::semi)) {
     return true;
+  }
 
   for (const FormatToken *Tok = Next->Next; Tok && Tok != Next->MatchingParen;
        Tok = Tok->Next) {
     if (Tok->is(TT_TypeDeclarationParen))
       return true;
     if (Tok->isOneOf(tok::l_paren, TT_TemplateOpener) && Tok->MatchingParen) {
       Tok = Tok->MatchingParen;
       continue;
     }
     if (Tok->is(tok::kw_const) || Tok->isSimpleTypeSpecifier() ||
-        Tok->isOneOf(TT_PointerOrReference, TT_StartOfName, tok::ellipsis))
+        Tok->isOneOf(TT_PointerOrReference, TT_StartOfName, tok::ellipsis)) {
       return true;
+    }
     if (Tok->isOneOf(tok::l_brace, tok::string_literal, TT_ObjCMethodExpr) ||
-        Tok->Tok.isLiteral())
+        Tok->Tok.isLiteral()) {
       return false;
     }
+  }
   return false;
 }
 
 bool TokenAnnotator::mustBreakForReturnType(const AnnotatedLine &Line) const {
   assert(Line.MightBeFunctionDecl);
 
   if ((Style.AlwaysBreakAfterReturnType == FormatStyle::RTBS_TopLevel ||
        Style.AlwaysBreakAfterReturnType ==
            FormatStyle::RTBS_TopLevelDefinitions) &&
-      Line.Level > 0)
+      Line.Level > 0) {
     return false;
+  }
 
   switch (Style.AlwaysBreakAfterReturnType) {
   case FormatStyle::RTBS_None:
     return false;
   case FormatStyle::RTBS_All:
   case FormatStyle::RTBS_TopLevel:
     return true;
   case FormatStyle::RTBS_AllDefinitions:
void TokenAnnotator::calculateFormattingInformation(AnnotatedLine &Line) const {
   if (AlignArrayOfStructures)
     calculateArrayInitializerColumnList(Line);
 
   while (Current) {
     if (isFunctionDeclarationName(Style.isCpp(), *Current, Line))
       Current->setType(TT_FunctionDeclarationName);
     const FormatToken *Prev = Current->Previous;
     if (Current->is(TT_LineComment)) {
-      if (Prev->is(BK_BracedInit) && Prev->opensScope())
+      if (Prev->is(BK_BracedInit) && Prev->opensScope()) {
         Current->SpacesRequiredBefore =
             (Style.Cpp11BracedListStyle && !Style.SpacesInParentheses) ? 0 : 1;
-      else
+      } else {
         Current->SpacesRequiredBefore = Style.SpacesBeforeTrailingComments;
+      }
 
       // If we find a trailing comment, iterate backwards to determine whether
       // it seems to relate to a specific parameter. If so, break before that
       // parameter to avoid changing the comment's meaning. E.g. don't move 'b'
       // to the previous line in:
       //   SomeFunction(a,
       //                b, // comment
       //                c);
       if (!Current->HasUnescapedNewline) {
         for (FormatToken *Parameter = Current->Previous; Parameter;
              Parameter = Parameter->Previous) {
           if (Parameter->isOneOf(tok::comment, tok::r_brace))
             break;
           if (Parameter->Previous && Parameter->Previous->is(tok::comma)) {
             if (!Parameter->Previous->is(TT_CtorInitializerComma) &&
-                Parameter->HasUnescapedNewline)
+                Parameter->HasUnescapedNewline) {
               Parameter->MustBreakBefore = true;
+            }
             break;
           }
         }
       }
     } else if (Current->SpacesRequiredBefore == 0 &&
                spaceRequiredBefore(Line, *Current)) {
       Current->SpacesRequiredBefore = 1;
     }
 
     const auto &Children = Prev->Children;
     if (!Children.empty() && Children.back()->Last->is(TT_LineComment)) {
       Current->MustBreakBefore = true;
     } else {
       Current->MustBreakBefore =
           Current->MustBreakBefore || mustBreakBefore(Line, *Current);
       if (!Current->MustBreakBefore && InFunctionDecl &&
-          Current->is(TT_FunctionDeclarationName))
+          Current->is(TT_FunctionDeclarationName)) {
         Current->MustBreakBefore = mustBreakForReturnType(Line);
       }
+    }
 
     Current->CanBreakBefore =
         Current->MustBreakBefore || canBreakBefore(Line, *Current);
     unsigned ChildSize = 0;
     if (Prev->Children.size() == 1) {
       FormatToken &LastOfChild = *Prev->Children[0]->Last;
       ChildSize = LastOfChild.isTrailingComment() ? Style.ColumnLimit
                                                   : LastOfChild.TotalLength + 1;
     }
     if (Current->MustBreakBefore || Prev->Children.size() > 1 ||
         (Prev->Children.size() == 1 &&
          Prev->Children[0]->First->MustBreakBefore) ||
-        Current->IsMultiline)
+        Current->IsMultiline) {
       Current->TotalLength = Prev->TotalLength + Style.ColumnLimit;
-    else
+    } else {
       Current->TotalLength = Prev->TotalLength + Current->ColumnWidth +
                              ChildSize + Current->SpacesRequiredBefore;
+    }
 
     if (Current->is(TT_CtorInitializerColon))
       InFunctionDecl = false;
 
     // FIXME: Only calculate this if CanBreakBefore is true once static
     // initializers etc. are sorted out.
     // FIXME: Move magic numbers to a better place.
 
void TokenAnnotator::calculateFormattingInformation(AnnotatedLine &Line) const {
 
   calculateUnbreakableTailLengths(Line);
   unsigned IndentLevel = Line.Level;
   for (Current = Line.First; Current != nullptr; Current = Current->Next) {
     if (Current->Role)
       Current->Role->precomputeFormattingInfos(Current);
     if (Current->MatchingParen &&
         Current->MatchingParen->opensBlockOrBlockTypeList(Style) &&
-        IndentLevel > 0)
+        IndentLevel > 0) {
       --IndentLevel;
+    }
     Current->IndentLevel = IndentLevel;
     if (Current->opensBlockOrBlockTypeList(Style))
       ++IndentLevel;
   }
 
   LLVM_DEBUG({ printDebugInfo(Line); });
 }
 
if (Style.Language == FormatStyle::LK_Java) {
     if (Left.is(tok::comma) && Left.NestingLevel == 0)
       return 3;
   } else if (Style.isJavaScript()) {
     if (Right.is(Keywords.kw_function) && Left.isNot(tok::comma))
       return 100;
     if (Left.is(TT_JsTypeColon))
       return 35;
     if ((Left.is(TT_TemplateString) && Left.TokenText.endswith("${")) ||
-        (Right.is(TT_TemplateString) && Right.TokenText.startswith("}")))
+        (Right.is(TT_TemplateString) && Right.TokenText.startswith("}"))) {
       return 100;
+    }
     // Prefer breaking call chains (".foo") over empty "{}", "[]" or "()".
     if (Left.opensScope() && Right.closesScope())
       return 200;
   }
 
   if (Right.is(tok::identifier) && Right.Next && Right.Next->is(TT_DictLiteral))
     return 1;
   if (Right.is(tok::l_square)) {
     if (Style.Language == FormatStyle::LK_Proto)
       return 1;
     if (Left.is(tok::r_square))
       return 200;
     // Slightly prefer formatting local lambda definitions like functions.
     if (Right.is(TT_LambdaLSquare) && Left.is(tok::equal))
       return 35;
     if (!Right.isOneOf(TT_ObjCMethodExpr, TT_LambdaLSquare,
                        TT_ArrayInitializerLSquare,
-                       TT_DesignatedInitializerLSquare, TT_AttributeSquare))
+                       TT_DesignatedInitializerLSquare, TT_AttributeSquare)) {
       return 500;
     }
+  }
 
   if (Left.is(tok::coloncolon) ||
-      (Right.is(tok::period) && Style.Language == FormatStyle::LK_Proto))
+      (Right.is(tok::period) && Style.Language == FormatStyle::LK_Proto)) {
     return 500;
+  }
   if (Right.isOneOf(TT_StartOfName, TT_FunctionDeclarationName) ||
       Right.is(tok::kw_operator)) {
     if (Line.startsWith(tok::kw_for) && Right.PartOfMultiVariableDeclStmt)
       return 3;
     if (Left.is(TT_StartOfName))
       return 110;
     if (InFunctionDecl && Right.NestingLevel == 0)
       return Style.PenaltyReturnTypeOnItsOwnLine;
     return 200;
   }
   if (Right.is(TT_PointerOrReference))
     return 190;
   if (Right.is(TT_LambdaArrow))
     return 110;
   if (Left.is(tok::equal) && Right.is(tok::l_brace))
     return 160;
   if (Left.is(TT_CastRParen))
     return 100;
   if (Left.isOneOf(tok::kw_class, tok::kw_struct))
     return 5000;
   if (Left.is(tok::comment))
     return 1000;
 
   if (Left.isOneOf(TT_RangeBasedForLoopColon, TT_InheritanceColon,
-                   TT_CtorInitializerColon))
+                   TT_CtorInitializerColon)) {
     return 2;
+  }
 
   if (Right.isMemberAccess()) {
     // Breaking before the "./->" of a chained call/member access is reasonably
     // cheap, as formatting those with one call per line is generally
     // desirable. In particular, it should be cheaper to break before the call
     // than it is to break inside a call's parameters, which could lead to weird
     // "hanging" indents. The exception is the very last "./->" to support this
     // frequent pattern:
if (Right.is(TT_SelectorName))
     return 0;
   if (Left.is(tok::colon) && Left.is(TT_ObjCMethodExpr))
     return Line.MightBeFunctionDecl ? 50 : 500;
 
   // In Objective-C type declarations, avoid breaking after the category's
   // open paren (we'll prefer breaking after the protocol list's opening
   // angle bracket, if present).
   if (Line.Type == LT_ObjCDecl && Left.is(tok::l_paren) && Left.Previous &&
-      Left.Previous->isOneOf(tok::identifier, tok::greater))
+      Left.Previous->isOneOf(tok::identifier, tok::greater)) {
     return 500;
+  }
 
   if (Left.is(tok::l_paren) && Style.PenaltyBreakOpenParenthesis != 0)
     return Style.PenaltyBreakOpenParenthesis;
   if (Left.is(tok::l_paren) && InFunctionDecl &&
-      Style.AlignAfterOpenBracket != FormatStyle::BAS_DontAlign)
+      Style.AlignAfterOpenBracket != FormatStyle::BAS_DontAlign) {
     return 100;
+  }
   if (Left.is(tok::l_paren) && Left.Previous &&
-      (Left.Previous->is(tok::kw_for) || Left.Previous->isIf()))
+      (Left.Previous->is(tok::kw_for) || Left.Previous->isIf())) {
     return 1000;
+  }
   if (Left.is(tok::equal) && InFunctionDecl)
     return 110;
   if (Right.is(tok::r_brace))
     return 1;
   if (Left.is(TT_TemplateOpener))
     return 100;
   if (Left.opensScope()) {
     // If we aren't aligning after opening parens/braces we can always break
     // here unless the style does not want us to place all arguments on the
     // next line.
     if (Style.AlignAfterOpenBracket == FormatStyle::BAS_DontAlign &&
-        (Left.ParameterCount <= 1 || Style.AllowAllArgumentsOnNextLine))
+        (Left.ParameterCount <= 1 || Style.AllowAllArgumentsOnNextLine)) {
       return 0;
+    }
     if (Left.is(tok::l_brace) && !Style.Cpp11BracedListStyle)
       return 19;
     return Left.ParameterCount > 1 ? Style.PenaltyBreakBeforeFirstCallParameter
                                    : 19;
   }
   if (Left.is(TT_JavaAnnotation))
     return 50;
 
   if (Left.is(TT_UnaryOperator))
     return 60;
   if (Left.isOneOf(tok::plus, tok::comma) && Left.Previous &&
       Left.Previous->isLabelString() &&
-      (Left.NextOperator || Left.OperatorIndex != 0))
+      (Left.NextOperator || Left.OperatorIndex != 0)) {
     return 50;
+  }
   if (Right.is(tok::plus) && Left.isLabelString() &&
-      (Right.NextOperator || Right.OperatorIndex != 0))
+      (Right.NextOperator || Right.OperatorIndex != 0)) {
     return 25;
+  }
   if (Left.is(tok::comma))
     return 1;
   if (Right.is(tok::lessless) && Left.isLabelString() &&
-      (Right.NextOperator || Right.OperatorIndex != 1))
+      (Right.NextOperator || Right.OperatorIndex != 1)) {
     return 25;
+  }
   if (Right.is(tok::lessless)) {
     // Breaking at a << is really cheap.
-    if (!Left.is(tok::r_paren) || Right.OperatorIndex > 0)
+    if (!Left.is(tok::r_paren) || Right.OperatorIndex > 0) {
       // Slightly prefer to break before the first one in log-like statements.
       return 2;
+    }
     return 1;
   }
   if (Left.ClosesTemplateDeclaration)
     return Style.PenaltyBreakTemplateDeclaration;
   if (Left.ClosesRequiresClause)
     return 0;
   if (Left.is(TT_ConditionalExpr))
     return prec::Conditional;
   prec::Level Level = Left.getPrecedence();
   if (Level == prec::Unknown)
     Level = Right.getPrecedence();
   if (Level == prec::Assignment)
     return Style.PenaltyBreakAssignment;
   if (Level != prec::Unknown)
     return Level;
 
   return 3;
 }
 
 bool TokenAnnotator::spaceRequiredBeforeParens(const FormatToken &Right) const {
   if (Style.SpaceBeforeParens == FormatStyle::SBPO_Always)
     return true;
   if (Right.is(TT_OverloadedOperatorLParen) &&
-      Style.SpaceBeforeParensOptions.AfterOverloadedOperator)
+      Style.SpaceBeforeParensOptions.AfterOverloadedOperator) {
     return true;
+  }
   if (Style.SpaceBeforeParensOptions.BeforeNonEmptyParentheses &&
-      Right.ParameterCount > 0)
+      Right.ParameterCount > 0) {
     return true;
+  }
   return false;
 }
 
 bool TokenAnnotator::spaceRequiredBetween(const AnnotatedLine &Line,
                                           const FormatToken &Left,
                                           const FormatToken &Right) const {
   if (Left.is(tok::kw_return) &&
-      !Right.isOneOf(tok::semi, tok::r_paren, tok::hashhash))
+      !Right.isOneOf(tok::semi, tok::r_paren, tok::hashhash)) {
     return true;
+  }
   if (Style.isJson() && Left.is(tok::string_literal) && Right.is(tok::colon))
     return false;
   if (Left.is(Keywords.kw_assert) && Style.Language == FormatStyle::LK_Java)
     return true;
   if (Style.ObjCSpaceAfterProperty && Line.Type == LT_ObjCProperty &&
-      Left.Tok.getObjCKeywordID() == tok::objc_property)
+      Left.Tok.getObjCKeywordID() == tok::objc_property) {
     return true;
+  }
   if (Right.is(tok::hashhash))
     return Left.is(tok::hash);
   if (Left.isOneOf(tok::hashhash, tok::hash))
     return Right.is(tok::hash);
   if ((Left.is(tok::l_paren) && Right.is(tok::r_paren)) ||
       (Left.is(tok::l_brace) && Left.isNot(BK_Block) &&
-       Right.is(tok::r_brace) && Right.isNot(BK_Block)))
+       Right.is(tok::r_brace) && Right.isNot(BK_Block))) {
     return Style.SpaceInEmptyParentheses;
+  }
   if (Style.SpacesInConditionalStatement) {
     const FormatToken *LeftParen = nullptr;
     if (Left.is(tok::l_paren))
       LeftParen = &Left;
     else if (Right.is(tok::r_paren) && Right.MatchingParen)
       LeftParen = Right.MatchingParen;
     if (LeftParen && LeftParen->Previous &&
-        isKeywordWithCondition(*LeftParen->Previous))
+        isKeywordWithCondition(*LeftParen->Previous)) {
       return true;
     }
+  }
 
   // auto{x} auto(x)
   if (Left.is(tok::kw_auto) && Right.isOneOf(tok::l_paren, tok::l_brace))
     return false;
 
   // operator co_await(x)
   if (Right.is(tok::l_paren) && Left.is(tok::kw_co_await) && Left.Previous &&
-      Left.Previous->is(tok::kw_operator))
+      Left.Previous->is(tok::kw_operator)) {
     return false;
+  }
   // co_await (x), co_yield (x), co_return (x)
   if (Left.isOneOf(tok::kw_co_await, tok::kw_co_yield, tok::kw_co_return) &&
-      !Right.isOneOf(tok::semi, tok::r_paren))
+      !Right.isOneOf(tok::semi, tok::r_paren)) {
     return true;
+  }
 
-  if (Left.is(tok::l_paren) || Right.is(tok::r_paren))
+  if (Left.is(tok::l_paren) || Right.is(tok::r_paren)) {
     return (Right.is(TT_CastRParen) ||
             (Left.MatchingParen && Left.MatchingParen->is(TT_CastRParen)))
                ? Style.SpacesInCStyleCastParentheses
                : Style.SpacesInParentheses;
+  }
   if (Right.isOneOf(tok::semi, tok::comma))
     return false;
   if (Right.is(tok::less) && Line.Type == LT_ObjCDecl) {
     bool IsLightweightGeneric = Right.MatchingParen &&
                                 Right.MatchingParen->Next &&
                                 Right.MatchingParen->Next->is(tok::colon);
     return !IsLightweightGeneric && Style.ObjCSpaceBeforeProtocolList;
   }
   if (Right.is(tok::less) && Left.is(tok::kw_template))
     return Style.SpaceAfterTemplateKeyword;
   if (Left.isOneOf(tok::exclaim, tok::tilde))
     return false;
   if (Left.is(tok::at) &&
       Right.isOneOf(tok::identifier, tok::string_literal, tok::char_constant,
                     tok::numeric_constant, tok::l_paren, tok::l_brace,
-                    tok::kw_true, tok::kw_false))
+                    tok::kw_true, tok::kw_false)) {
     return false;
+  }
   if (Left.is(tok::colon))
     return !Left.is(TT_ObjCMethodExpr);
   if (Left.is(tok::coloncolon))
     return false;
   if (Left.is(tok::less) || Right.isOneOf(tok::greater, tok::less)) {
     if (Style.Language == FormatStyle::LK_TextProto ||
         (Style.Language == FormatStyle::LK_Proto &&
          (Left.is(TT_DictLiteral) || Right.is(TT_DictLiteral)))) {
       // Format empty list as `<>`.
       if (Left.is(tok::less) && Right.is(tok::greater))
         return false;
       return !Style.Cpp11BracedListStyle;
     }
     return false;
   }
-  if (Right.is(tok::ellipsis))
+  if (Right.is(tok::ellipsis)) {
     return Left.Tok.isLiteral() || (Left.is(tok::identifier) && Left.Previous &&
                                     Left.Previous->is(tok::kw_case));
+  }
   if (Left.is(tok::l_square) && Right.is(tok::amp))
     return Style.SpacesInSquareBrackets;
   if (Right.is(TT_PointerOrReference)) {
     if (Left.is(tok::r_paren) && Line.MightBeFunctionDecl) {
       if (!Left.MatchingParen)
         return true;
       FormatToken *TokenBeforeMatchingParen =
           Left.MatchingParen->getPreviousNonComment();
       if (!TokenBeforeMatchingParen || !Left.is(TT_TypeDeclarationParen))
         return true;
     }
     // Add a space if the previous token is a pointer qualifier or the closing
     // parenthesis of __attribute__(()) expression and the style requires spaces
     // after pointer qualifiers.
     if ((Style.SpaceAroundPointerQualifiers == FormatStyle::SAPQ_After ||
          Style.SpaceAroundPointerQualifiers == FormatStyle::SAPQ_Both) &&
-        (Left.is(TT_AttributeParen) || Left.canBePointerOrReferenceQualifier()))
+        (Left.is(TT_AttributeParen) ||
+         Left.canBePointerOrReferenceQualifier())) {
       return true;
+    }
     if (Left.Tok.isLiteral())
       return true;
     // for (auto a = 0, b = 0; const auto & c : {1, 2, 3})
     if (Left.isTypeOrIdentifier() && Right.Next && Right.Next->Next &&
-        Right.Next->Next->is(TT_RangeBasedForLoopColon))
+        Right.Next->Next->is(TT_RangeBasedForLoopColon)) {
       return getTokenPointerOrReferenceAlignment(Right) !=
              FormatStyle::PAS_Left;
+    }
     return !Left.isOneOf(TT_PointerOrReference, tok::l_paren) &&
            (getTokenPointerOrReferenceAlignment(Right) !=
                 FormatStyle::PAS_Left ||
             (Line.IsMultiVariableDeclStmt &&
              (Left.NestingLevel == 0 ||
               (Left.NestingLevel == 1 && startsWithInitStatement(Line)))));
   }
   if (Right.is(TT_FunctionTypeLParen) && Left.isNot(tok::l_paren) &&
       (!Left.is(TT_PointerOrReference) ||
        (getTokenPointerOrReferenceAlignment(Left) != FormatStyle::PAS_Right &&
-        !Line.IsMultiVariableDeclStmt)))
+        !Line.IsMultiVariableDeclStmt))) {
     return true;
+  }
   if (Left.is(TT_PointerOrReference)) {
     // Add a space if the next token is a pointer qualifier and the style
     // requires spaces before pointer qualifiers.
     if ((Style.SpaceAroundPointerQualifiers == FormatStyle::SAPQ_Before ||
          Style.SpaceAroundPointerQualifiers == FormatStyle::SAPQ_Both) &&
-        Right.canBePointerOrReferenceQualifier())
+        Right.canBePointerOrReferenceQualifier()) {
       return true;
+    }
     // & 1
     if (Right.Tok.isLiteral())
       return true;
     // & /* comment
     if (Right.is(TT_BlockComment))
       return true;
     // foo() -> const Bar * override/final
     if (Right.isOneOf(Keywords.kw_override, Keywords.kw_final) &&
-        !Right.is(TT_StartOfName))
+        !Right.is(TT_StartOfName)) {
       return true;
+    }
     // & {
     if (Right.is(tok::l_brace) && Right.is(BK_Block))
       return true;
     // for (auto a = 0, b = 0; const auto& c : {1, 2, 3})
     if (Left.Previous && Left.Previous->isTypeOrIdentifier() && Right.Next &&
-        Right.Next->is(TT_RangeBasedForLoopColon))
+        Right.Next->is(TT_RangeBasedForLoopColon)) {
       return getTokenPointerOrReferenceAlignment(Left) !=
              FormatStyle::PAS_Right;
+    }
     if (Right.isOneOf(TT_PointerOrReference, TT_ArraySubscriptLSquare,
-                      tok::l_paren))
+                      tok::l_paren)) {
       return false;
+    }
     if (getTokenPointerOrReferenceAlignment(Left) == FormatStyle::PAS_Right)
       return false;
     // FIXME: Setting IsMultiVariableDeclStmt for the whole line is error-prone,
     // because it does not take into account nested scopes like lambdas.
     // In multi-variable declaration statements, attach */& to the variable
     // independently of the style. However, avoid doing it if we are in a nested
     // scope, e.g. lambda. We still need to special-case statements with
     // initializers.
     if (Line.IsMultiVariableDeclStmt &&
         (Left.NestingLevel == Line.First->NestingLevel ||
          ((Left.NestingLevel == Line.First->NestingLevel + 1) &&
-          startsWithInitStatement(Line))))
+          startsWithInitStatement(Line)))) {
       return false;
+    }
     return Left.Previous && !Left.Previous->isOneOf(
                                 tok::l_paren, tok::coloncolon, tok::l_square);
   }
   // Ensure right pointer alignment with ellipsis e.g. int *...P
   if (Left.is(tok::ellipsis) && Left.Previous &&
-      Left.Previous->isOneOf(tok::star, tok::amp, tok::ampamp))
+      Left.Previous->isOneOf(tok::star, tok::amp, tok::ampamp)) {
     return Style.PointerAlignment != FormatStyle::PAS_Right;
+  }
 
   if (Right.is(tok::star) && Left.is(tok::l_paren))
     return false;
   if (Left.is(tok::star) && Right.isOneOf(tok::star, tok::amp, tok::ampamp))
     return false;
   if (Right.isOneOf(tok::star, tok::amp, tok::ampamp)) {
     const FormatToken *Previous = &Left;
     while (Previous && !Previous->is(tok::kw_operator)) {
if (Right.isOneOf(tok::star, tok::amp, tok::ampamp)) {
     //   operator Foo*()
     //   operator C<T>*()
     //   operator std::Foo*()
     //   operator C<T>::D<U>*()
     // dependent on PointerAlignment style.
     if (Previous) {
       if (Previous->endsSequence(tok::kw_operator))
         return Style.PointerAlignment != FormatStyle::PAS_Left;
-      if (Previous->is(tok::kw_const) || Previous->is(tok::kw_volatile))
+      if (Previous->is(tok::kw_const) || Previous->is(tok::kw_volatile)) {
         return (Style.PointerAlignment != FormatStyle::PAS_Left) ||
                (Style.SpaceAroundPointerQualifiers ==
                 FormatStyle::SAPQ_After) ||
                (Style.SpaceAroundPointerQualifiers == FormatStyle::SAPQ_Both);
       }
     }
+  }
   const auto SpaceRequiredForArrayInitializerLSquare =
       [](const FormatToken &LSquareTok, const FormatStyle &Style) {
         return Style.SpacesInContainerLiterals ||
                ((Style.Language == FormatStyle::LK_Proto ||
                  Style.Language == FormatStyle::LK_TextProto) &&
                 !Style.Cpp11BracedListStyle &&
                 LSquareTok.endsSequence(tok::l_square, tok::colon,
                                         TT_SelectorName));
       };
-  if (Left.is(tok::l_square))
+  if (Left.is(tok::l_square)) {
     return (Left.is(TT_ArrayInitializerLSquare) && Right.isNot(tok::r_square) &&
             SpaceRequiredForArrayInitializerLSquare(Left, Style)) ||
            (Left.isOneOf(TT_ArraySubscriptLSquare, TT_StructuredBindingLSquare,
                          TT_LambdaLSquare) &&
             Style.SpacesInSquareBrackets && Right.isNot(tok::r_square));
-  if (Right.is(tok::r_square))
+  }
+  if (Right.is(tok::r_square)) {
     return Right.MatchingParen &&
            ((Right.MatchingParen->is(TT_ArrayInitializerLSquare) &&
              SpaceRequiredForArrayInitializerLSquare(*Right.MatchingParen,
                                                      Style)) ||
             (Style.SpacesInSquareBrackets &&
              Right.MatchingParen->isOneOf(TT_ArraySubscriptLSquare,
                                           TT_StructuredBindingLSquare,
                                           TT_LambdaLSquare)) ||
             Right.MatchingParen->is(TT_AttributeParen));
+  }
   if (Right.is(tok::l_square) &&
       !Right.isOneOf(TT_ObjCMethodExpr, TT_LambdaLSquare,
                      TT_DesignatedInitializerLSquare,
                      TT_StructuredBindingLSquare, TT_AttributeSquare) &&
       !Left.isOneOf(tok::numeric_constant, TT_DictLiteral) &&
       !(!Left.is(tok::r_square) && Style.SpaceBeforeSquareBrackets &&
-        Right.is(TT_ArraySubscriptLSquare)))
+        Right.is(TT_ArraySubscriptLSquare))) {
     return false;
+  }
   if (Left.is(tok::l_brace) && Right.is(tok::r_brace))
     return !Left.Children.empty(); // No spaces in "{}".
   if ((Left.is(tok::l_brace) && Left.isNot(BK_Block)) ||
       (Right.is(tok::r_brace) && Right.MatchingParen &&
-       Right.MatchingParen->isNot(BK_Block)))
+       Right.MatchingParen->isNot(BK_Block))) {
     return Style.Cpp11BracedListStyle ? Style.SpacesInParentheses : true;
-  if (Left.is(TT_BlockComment))
+  }
+  if (Left.is(TT_BlockComment)) {
     // No whitespace in x(/*foo=*/1), except for JavaScript.
     return Style.isJavaScript() || !Left.TokenText.endswith("=*/");
+  }
 
   // Space between template and attribute.
   // e.g. template <typename T> [[nodiscard]] ...
   if (Left.is(TT_TemplateCloser) && Right.is(TT_AttributeSquare))
     return true;
   // Space before parentheses common for all languages
   if (Right.is(tok::l_paren)) {
     if (Left.is(TT_TemplateCloser) && Right.isNot(TT_FunctionTypeLParen))
       return spaceRequiredBeforeParens(Right);
-    if (Left.isOneOf(TT_RequiresClause, TT_RequiresClauseInARequiresExpression))
+    if (Left.isOneOf(TT_RequiresClause,
+                     TT_RequiresClauseInARequiresExpression)) {
       return Style.SpaceBeforeParensOptions.AfterRequiresInClause ||
              spaceRequiredBeforeParens(Right);
-    if (Left.is(TT_RequiresExpression))
+    }
+    if (Left.is(TT_RequiresExpression)) {
       return Style.SpaceBeforeParensOptions.AfterRequiresInExpression ||
              spaceRequiredBeforeParens(Right);
+    }
     if ((Left.is(tok::r_paren) && Left.is(TT_AttributeParen)) ||
-        (Left.is(tok::r_square) && Left.is(TT_AttributeSquare)))
+        (Left.is(tok::r_square) && Left.is(TT_AttributeSquare))) {
       return true;
-    if (Left.is(TT_ForEachMacro))
+    }
+    if (Left.is(TT_ForEachMacro)) {
       return Style.SpaceBeforeParensOptions.AfterForeachMacros ||
              spaceRequiredBeforeParens(Right);
-    if (Left.is(TT_IfMacro))
+    }
+    if (Left.is(TT_IfMacro)) {
       return Style.SpaceBeforeParensOptions.AfterIfMacros ||
              spaceRequiredBeforeParens(Right);
+    }
     if (Line.Type == LT_ObjCDecl)
       return true;
     if (Left.is(tok::semi))
       return true;
     if (Left.isOneOf(tok::pp_elif, tok::kw_for, tok::kw_while, tok::kw_switch,
                      tok::kw_case, TT_ForEachMacro, TT_ObjCForIn) ||
-        Left.isIf(Line.Type != LT_PreprocessorDirective))
+        Left.isIf(Line.Type != LT_PreprocessorDirective)) {
       return Style.SpaceBeforeParensOptions.AfterControlStatements ||
              spaceRequiredBeforeParens(Right);
+    }
 
     // TODO add Operator overloading specific Options to
     // SpaceBeforeParensOptions
     if (Right.is(TT_OverloadedOperatorLParen))
       return spaceRequiredBeforeParens(Right);
     // Function declaration or definition
     if (Line.MightBeFunctionDecl && (Left.is(TT_FunctionDeclarationName))) {
-      if (Line.mightBeFunctionDefinition())
+      if (Line.mightBeFunctionDefinition()) {
         return Style.SpaceBeforeParensOptions.AfterFunctionDefinitionName ||
                spaceRequiredBeforeParens(Right);
-      else
+      } else {
         return Style.SpaceBeforeParensOptions.AfterFunctionDeclarationName ||
                spaceRequiredBeforeParens(Right);
       }
+    }
     // Lambda
     if (Line.Type != LT_PreprocessorDirective && Left.is(tok::r_square) &&
-        Left.MatchingParen && Left.MatchingParen->is(TT_LambdaLSquare))
+        Left.MatchingParen && Left.MatchingParen->is(TT_LambdaLSquare)) {
       return Style.SpaceBeforeParensOptions.AfterFunctionDefinitionName ||
              spaceRequiredBeforeParens(Right);
+    }
     if (!Left.Previous || Left.Previous->isNot(tok::period)) {
-      if (Left.isOneOf(tok::kw_try, Keywords.kw___except, tok::kw_catch))
+      if (Left.isOneOf(tok::kw_try, Keywords.kw___except, tok::kw_catch)) {
         return Style.SpaceBeforeParensOptions.AfterControlStatements ||
                spaceRequiredBeforeParens(Right);
-      if (Left.isOneOf(tok::kw_new, tok::kw_delete))
+      }
+      if (Left.isOneOf(tok::kw_new, tok::kw_delete)) {
         return ((!Line.MightBeFunctionDecl || !Left.Previous) &&
                 Style.SpaceBeforeParens != FormatStyle::SBPO_Never) ||
                spaceRequiredBeforeParens(Right);
+      }
 
       if (Left.is(tok::r_square) && Left.MatchingParen &&
           Left.MatchingParen->Previous &&
-          Left.MatchingParen->Previous->is(tok::kw_delete))
+          Left.MatchingParen->Previous->is(tok::kw_delete)) {
         return (Style.SpaceBeforeParens != FormatStyle::SBPO_Never) ||
                spaceRequiredBeforeParens(Right);
       }
+    }
     // Handle builtins like identifiers.
     if (Line.Type != LT_PreprocessorDirective &&
-        (Left.Tok.getIdentifierInfo() || Left.is(tok::r_paren)))
+        (Left.Tok.getIdentifierInfo() || Left.is(tok::r_paren))) {
       return spaceRequiredBeforeParens(Right);
+    }
     return false;
   }
   if (Left.is(tok::at) && Right.Tok.getObjCKeywordID() != tok::objc_not_keyword)
     return false;
-  if (Right.is(TT_UnaryOperator))
+  if (Right.is(TT_UnaryOperator)) {
     return !Left.isOneOf(tok::l_paren, tok::l_square, tok::at) &&
            (Left.isNot(tok::colon) || Left.isNot(TT_ObjCMethodExpr));
+  }
   if ((Left.isOneOf(tok::identifier, tok::greater, tok::r_square,
                     tok::r_paren) ||
        Left.isSimpleTypeSpecifier()) &&
       Right.is(tok::l_brace) && Right.getNextNonComment() &&
-      Right.isNot(BK_Block))
+      Right.isNot(BK_Block)) {
     return false;
+  }
   if (Left.is(tok::period) || Right.is(tok::period))
     return false;
   // u#str, U#str, L#str, u8#str
   // uR#str, UR#str, LR#str, u8R#str
   if (Right.is(tok::hash) && Left.is(tok::identifier) &&
       (Left.TokenText == "L" || Left.TokenText == "u" ||
        Left.TokenText == "U" || Left.TokenText == "u8" ||
        Left.TokenText == "LR" || Left.TokenText == "uR" ||
-       Left.TokenText == "UR" || Left.TokenText == "u8R"))
+       Left.TokenText == "UR" || Left.TokenText == "u8R")) {
     return false;
+  }
   if (Left.is(TT_TemplateCloser) && Left.MatchingParen &&
       Left.MatchingParen->Previous &&
       (Left.MatchingParen->Previous->is(tok::period) ||
-       Left.MatchingParen->Previous->is(tok::coloncolon)))
+       Left.MatchingParen->Previous->is(tok::coloncolon))) {
     // Java call to generic function with explicit type:
     // A.<B<C<...>>>DoSomething();
     // A::<B<C<...>>>DoSomething();  // With a Java 8 method reference.
     return false;
+  }
   if (Left.is(TT_TemplateCloser) && Right.is(tok::l_square))
     return false;
-  if (Left.is(tok::l_brace) && Left.endsSequence(TT_DictLiteral, tok::at))
+  if (Left.is(tok::l_brace) && Left.endsSequence(TT_DictLiteral, tok::at)) {
     // Objective-C dictionary literal -> no space after opening brace.
     return false;
+  }
   if (Right.is(tok::r_brace) && Right.MatchingParen &&
-      Right.MatchingParen->endsSequence(TT_DictLiteral, tok::at))
+      Right.MatchingParen->endsSequence(TT_DictLiteral, tok::at)) {
     // Objective-C dictionary literal -> no space before closing brace.
     return false;
+  }
   if (Right.getType() == TT_TrailingAnnotation &&
       Right.isOneOf(tok::amp, tok::ampamp) &&
       Left.isOneOf(tok::kw_const, tok::kw_volatile) &&
-      (!Right.Next || Right.Next->is(tok::semi)))
+      (!Right.Next || Right.Next->is(tok::semi))) {
     // Match const and volatile ref-qualifiers without any additional
     // qualifiers such as
     // void Fn() const &;
     return getTokenReferenceAlignment(Right) != FormatStyle::PAS_Left;
+  }
 
   return true;
 }
 
 bool TokenAnnotator::spaceRequiredBefore(const AnnotatedLine &Line,
                                          const FormatToken &Right) const {
   const FormatToken &Left = *Right.Previous;
 
bool TokenAnnotator::spaceRequiredBefore(const AnnotatedLine &Line,
 
   if (Style.isCpp()) {
     // Space between import <iostream>.
     // or import .....;
     if (Left.is(Keywords.kw_import) && Right.isOneOf(tok::less, tok::ellipsis))
       return true;
     // Space between `module :` and `import :`.
     if (Left.isOneOf(Keywords.kw_module, Keywords.kw_import) &&
-        Right.is(TT_ModulePartitionColon))
+        Right.is(TT_ModulePartitionColon)) {
       return true;
+    }
     // No space between import foo:bar but keep a space between import :bar;
     if (Left.is(tok::identifier) && Right.is(TT_ModulePartitionColon))
       return false;
     // No space between :bar;
     if (Left.is(TT_ModulePartitionColon) &&
-        Right.isOneOf(tok::identifier, tok::kw_private))
+        Right.isOneOf(tok::identifier, tok::kw_private)) {
       return false;
+    }
     if (Left.is(tok::ellipsis) && Right.is(tok::identifier) &&
-        Line.First->is(Keywords.kw_import))
+        Line.First->is(Keywords.kw_import)) {
       return false;
+    }
     // Space in __attribute__((attr)) ::type.
     if (Left.is(TT_AttributeParen) && Right.is(tok::coloncolon))
       return true;
 
     if (Left.is(tok::kw_operator))
       return Right.is(tok::coloncolon);
     if (Right.is(tok::l_brace) && Right.is(BK_BracedInit) &&
-        !Left.opensScope() && Style.SpaceBeforeCpp11BracedList)
+        !Left.opensScope() && Style.SpaceBeforeCpp11BracedList) {
       return true;
+    }
     if (Left.is(tok::less) && Left.is(TT_OverloadedOperator) &&
-        Right.is(TT_TemplateOpener))
+        Right.is(TT_TemplateOpener)) {
       return true;
+    }
   } else if (Style.Language == FormatStyle::LK_Proto ||
              Style.Language == FormatStyle::LK_TextProto) {
     if (Right.is(tok::period) &&
         Left.isOneOf(Keywords.kw_optional, Keywords.kw_required,
-                     Keywords.kw_repeated, Keywords.kw_extend))
+                     Keywords.kw_repeated, Keywords.kw_extend)) {
       return true;
+    }
     if (Right.is(tok::l_paren) &&
-        Left.isOneOf(Keywords.kw_returns, Keywords.kw_option))
+        Left.isOneOf(Keywords.kw_returns, Keywords.kw_option)) {
       return true;
+    }
     if (Right.isOneOf(tok::l_brace, tok::less) && Left.is(TT_SelectorName))
       return true;
     // Slashes occur in text protocol extension syntax: [type/type] { ... }.
     if (Left.is(tok::slash) || Right.is(tok::slash))
       return false;
     if (Left.MatchingParen &&
         Left.MatchingParen->is(TT_ProtoExtensionLSquare) &&
-        Right.isOneOf(tok::l_brace, tok::less))
+        Right.isOneOf(tok::l_brace, tok::less)) {
       return !Style.Cpp11BracedListStyle;
+    }
     // A percent is probably part of a formatting specification, such as %lld.
     if (Left.is(tok::percent))
       return false;
     // Preserve the existence of a space before a percent for cases like 0x%04x
     // and "%d %d"
     if (Left.is(tok::numeric_constant) && Right.is(tok::percent))
       return Right.hasWhitespaceBefore();
   } else if (Style.isJson()) {
if (Style.isCpp()) {
     if (Left.is(tok::comma) && Right.is(tok::comma))
       return false;
 
     // space after var in `var (key, value)`
     if (Left.is(Keywords.kw_var) && Right.is(tok::l_paren))
       return true;
 
     // space between keywords and paren e.g. "using ("
-    if (Right.is(tok::l_paren))
+    if (Right.is(tok::l_paren)) {
       if (Left.isOneOf(tok::kw_using, Keywords.kw_async, Keywords.kw_when,
-                       Keywords.kw_lock))
+                       Keywords.kw_lock)) {
         return Style.SpaceBeforeParensOptions.AfterControlStatements ||
                spaceRequiredBeforeParens(Right);
+      }
+    }
 
     // space between method modifier and opening parenthesis of a tuple return
     // type
     if (Left.isOneOf(tok::kw_public, tok::kw_private, tok::kw_protected,
                      tok::kw_virtual, tok::kw_extern, tok::kw_static,
                      Keywords.kw_internal, Keywords.kw_abstract,
                      Keywords.kw_sealed, Keywords.kw_override,
                      Keywords.kw_async, Keywords.kw_unsafe) &&
-        Right.is(tok::l_paren))
+        Right.is(tok::l_paren)) {
       return true;
+    }
   } else if (Style.isJavaScript()) {
     if (Left.is(TT_FatArrow))
       return true;
     // for await ( ...
     if (Right.is(tok::l_paren) && Left.is(Keywords.kw_await) && Left.Previous &&
-        Left.Previous->is(tok::kw_for))
+        Left.Previous->is(tok::kw_for)) {
       return true;
+    }
     if (Left.is(Keywords.kw_async) && Right.is(tok::l_paren) &&
         Right.MatchingParen) {
       const FormatToken *Next = Right.MatchingParen->getNextNonComment();
       // An async arrow function, for example: `x = async () => foo();`,
       // as opposed to calling a function called async: `x = async();`
       if (Next && Next->is(TT_FatArrow))
         return true;
     }
     if ((Left.is(TT_TemplateString) && Left.TokenText.endswith("${")) ||
-        (Right.is(TT_TemplateString) && Right.TokenText.startswith("}")))
+        (Right.is(TT_TemplateString) && Right.TokenText.startswith("}"))) {
       return false;
+    }
     // In tagged template literals ("html`bar baz`"), there is no space between
     // the tag identifier and the template string.
     if (Keywords.IsJavaScriptIdentifier(Left,
                                         /* AcceptIdentifierName= */ false) &&
-        Right.is(TT_TemplateString))
+        Right.is(TT_TemplateString)) {
       return false;
+    }
     if (Right.is(tok::star) &&
-        Left.isOneOf(Keywords.kw_function, Keywords.kw_yield))
+        Left.isOneOf(Keywords.kw_function, Keywords.kw_yield)) {
       return false;
+    }
     if (Right.isOneOf(tok::l_brace, tok::l_square) &&
         Left.isOneOf(Keywords.kw_function, Keywords.kw_yield,
-                     Keywords.kw_extends, Keywords.kw_implements))
+                     Keywords.kw_extends, Keywords.kw_implements)) {
       return true;
+    }
     if (Right.is(tok::l_paren)) {
       // JS methods can use some keywords as names (e.g. `delete()`).
       if (Line.MustBeDeclaration && Left.Tok.getIdentifierInfo())
         return false;
       // Valid JS method names can include keywords, e.g. `foo.delete()` or
       // `bar.instanceof()`. Recognize call positions by preceding period.
       if (Left.Previous && Left.Previous->is(tok::period) &&
-          Left.Tok.getIdentifierInfo())
+          Left.Tok.getIdentifierInfo()) {
         return false;
+      }
       // Additional unary JavaScript operators that need a space after.
       if (Left.isOneOf(tok::kw_throw, Keywords.kw_await, Keywords.kw_typeof,
-                       tok::kw_void))
+                       tok::kw_void)) {
         return true;
       }
+    }
     // `foo as const;` casts into a const type.
     if (Left.endsSequence(tok::kw_const, Keywords.kw_as))
       return false;
     if ((Left.isOneOf(Keywords.kw_let, Keywords.kw_var, Keywords.kw_in,
                       tok::kw_const) ||
          // "of" is only a keyword if it appears after another identifier
          // (e.g. as "const x of y" in a for loop), or after a destructuring
          // operation (const [x, y] of z, const {a, b} of c).
          (Left.is(Keywords.kw_of) && Left.Previous &&
           (Left.Previous->is(tok::identifier) ||
            Left.Previous->isOneOf(tok::r_square, tok::r_brace)))) &&
-        (!Left.Previous || !Left.Previous->is(tok::period)))
+        (!Left.Previous || !Left.Previous->is(tok::period))) {
       return true;
+    }
     if (Left.isOneOf(tok::kw_for, Keywords.kw_as) && Left.Previous &&
-        Left.Previous->is(tok::period) && Right.is(tok::l_paren))
+        Left.Previous->is(tok::period) && Right.is(tok::l_paren)) {
       return false;
+    }
     if (Left.is(Keywords.kw_as) &&
-        Right.isOneOf(tok::l_square, tok::l_brace, tok::l_paren))
+        Right.isOneOf(tok::l_square, tok::l_brace, tok::l_paren)) {
       return true;
+    }
     if (Left.is(tok::kw_default) && Left.Previous &&
-        Left.Previous->is(tok::kw_export))
+        Left.Previous->is(tok::kw_export)) {
       return true;
+    }
     if (Left.is(Keywords.kw_is) && Right.is(tok::l_brace))
       return true;
     if (Right.isOneOf(TT_JsTypeColon, TT_JsTypeOptionalQuestion))
       return false;
     if (Left.is(TT_JsTypeOperator) || Right.is(TT_JsTypeOperator))
       return false;
     if ((Left.is(tok::l_brace) || Right.is(tok::r_brace)) &&
-        Line.First->isOneOf(Keywords.kw_import, tok::kw_export))
+        Line.First->isOneOf(Keywords.kw_import, tok::kw_export)) {
       return false;
+    }
     if (Left.is(tok::ellipsis))
       return false;
     if (Left.is(TT_TemplateCloser) &&
         !Right.isOneOf(tok::equal, tok::l_brace, tok::comma, tok::l_square,
-                       Keywords.kw_implements, Keywords.kw_extends))
+                       Keywords.kw_implements, Keywords.kw_extends)) {
       // Type assertions ('<type>expr') are not followed by whitespace. Other
       // locations that should have whitespace following are identified by the
       // above set of follower tokens.
       return false;
+    }
     if (Right.is(TT_NonNullAssertion))
       return false;
     if (Left.is(TT_NonNullAssertion) &&
-        Right.isOneOf(Keywords.kw_as, Keywords.kw_in))
+        Right.isOneOf(Keywords.kw_as, Keywords.kw_in)) {
       return true; // "x! as string", "x! in y"
+    }
   } else if (Style.Language == FormatStyle::LK_Java) {
     if (Left.is(tok::r_square) && Right.is(tok::l_brace))
       return true;
-    if (Left.is(Keywords.kw_synchronized) && Right.is(tok::l_paren))
+    if (Left.is(Keywords.kw_synchronized) && Right.is(tok::l_paren)) {
       return Style.SpaceBeforeParensOptions.AfterControlStatements ||
              spaceRequiredBeforeParens(Right);
+    }
     if ((Left.isOneOf(tok::kw_static, tok::kw_public, tok::kw_private,
                       tok::kw_protected) ||
          Left.isOneOf(Keywords.kw_final, Keywords.kw_abstract,
                       Keywords.kw_native)) &&
-        Right.is(TT_TemplateOpener))
+        Right.is(TT_TemplateOpener)) {
       return true;
     }
+  }
   if (Left.is(TT_ImplicitStringLiteral))
     return Right.hasWhitespaceBefore();
   if (Line.Type == LT_ObjCMethodDecl) {
     if (Left.is(TT_ObjCMethodSpecifier))
       return true;
-    if (Left.is(tok::r_paren) && canBeObjCSelectorComponent(Right))
+    if (Left.is(tok::r_paren) && canBeObjCSelectorComponent(Right)) {
       // Don't space between ')' and <id> or ')' and 'new'. 'new' is not a
       // keyword in Objective-C, and '+ (instancetype)new;' is a standard class
       // method declaration.
       return false;
     }
+  }
   if (Line.Type == LT_ObjCProperty &&
-      (Right.is(tok::equal) || Left.is(tok::equal)))
+      (Right.is(tok::equal) || Left.is(tok::equal))) {
     return false;
+  }
 
   if (Right.isOneOf(TT_TrailingReturnArrow, TT_LambdaArrow) ||
-      Left.isOneOf(TT_TrailingReturnArrow, TT_LambdaArrow))
+      Left.isOneOf(TT_TrailingReturnArrow, TT_LambdaArrow)) {
     return true;
+  }
   if (Left.is(tok::comma) && !Right.is(TT_OverloadedOperatorLParen))
     return true;
   if (Right.is(tok::comma))
     return false;
   if (Right.is(TT_ObjCBlockLParen))
     return true;
   if (Right.is(TT_CtorInitializerColon))
     return Style.SpaceBeforeCtorInitializerColon;
   if (Right.is(TT_InheritanceColon) && !Style.SpaceBeforeInheritanceColon)
     return false;
   if (Right.is(TT_RangeBasedForLoopColon) &&
-      !Style.SpaceBeforeRangeBasedForLoopColon)
+      !Style.SpaceBeforeRangeBasedForLoopColon) {
     return false;
-  if (Left.is(TT_BitFieldColon))
+  }
+  if (Left.is(TT_BitFieldColon)) {
     return Style.BitFieldColonSpacing == FormatStyle::BFCS_Both ||
            Style.BitFieldColonSpacing == FormatStyle::BFCS_After;
+  }
   if (Right.is(tok::colon)) {
     if (Line.First->isOneOf(tok::kw_default, tok::kw_case))
       return Style.SpaceBeforeCaseColon;
     const FormatToken *Next = Right.getNextNonComment();
     if (!Next || Next->is(tok::semi))
       return false;
     if (Right.is(TT_ObjCMethodExpr))
       return false;
     if (Left.is(tok::question))
       return false;
     if (Right.is(TT_InlineASMColon) && Left.is(tok::coloncolon))
       return false;
     if (Right.is(TT_DictLiteral))
       return Style.SpacesInContainerLiterals;
     if (Right.is(TT_AttributeColon))
       return false;
     if (Right.is(TT_CSharpNamedArgumentColon))
       return false;
-    if (Right.is(TT_BitFieldColon))
+    if (Right.is(TT_BitFieldColon)) {
       return Style.BitFieldColonSpacing == FormatStyle::BFCS_Both ||
              Style.BitFieldColonSpacing == FormatStyle::BFCS_Before;
+    }
     return true;
   }
   // Do not merge "- -" into "--".
   if ((Left.isOneOf(tok::minus, tok::minusminus) &&
        Right.isOneOf(tok::minus, tok::minusminus)) ||
       (Left.isOneOf(tok::plus, tok::plusplus) &&
-       Right.isOneOf(tok::plus, tok::plusplus)))
+       Right.isOneOf(tok::plus, tok::plusplus))) {
     return true;
+  }
   if (Left.is(TT_UnaryOperator)) {
     if (!Right.is(tok::l_paren)) {
       // The alternative operators for ~ and ! are "compl" and "not".
       // If they are used instead, we do not want to combine them with
       // the token to the right, unless that is a left paren.
       if (Left.is(tok::exclaim) && Left.TokenText == "not")
         return true;
       if (Left.is(tok::tilde) && Left.TokenText == "compl")
         return true;
       // Lambda captures allow for a lone &, so "&]" needs to be properly
       // handled.
       if (Left.is(tok::amp) && Right.is(tok::r_square))
         return Style.SpacesInSquareBrackets;
     }
     return (Style.SpaceAfterLogicalNot && Left.is(tok::exclaim)) ||
            Right.is(TT_BinaryOperator);
   }
 
   // If the next token is a binary operator or a selector name, we have
   // incorrectly classified the parenthesis as a cast. FIXME: Detect correctly.
-  if (Left.is(TT_CastRParen))
+  if (Left.is(TT_CastRParen)) {
     return Style.SpaceAfterCStyleCast ||
            Right.isOneOf(TT_BinaryOperator, TT_SelectorName);
+  }
 
   auto ShouldAddSpacesInAngles = [this, &Right]() {
     if (this->Style.SpacesInAngles == FormatStyle::SIAS_Always)
       return true;
     if (this->Style.SpacesInAngles == FormatStyle::SIAS_Leave)
       return Right.hasWhitespaceBefore();
     return false;
   };
 
   if (Left.is(tok::greater) && Right.is(tok::greater)) {
     if (Style.Language == FormatStyle::LK_TextProto ||
-        (Style.Language == FormatStyle::LK_Proto && Left.is(TT_DictLiteral)))
+        (Style.Language == FormatStyle::LK_Proto && Left.is(TT_DictLiteral))) {
       return !Style.Cpp11BracedListStyle;
+    }
     return Right.is(TT_TemplateCloser) && Left.is(TT_TemplateCloser) &&
            ((Style.Standard < FormatStyle::LS_Cpp11) ||
             ShouldAddSpacesInAngles());
   }
   if (Right.isOneOf(tok::arrow, tok::arrowstar, tok::periodstar) ||
       Left.isOneOf(tok::arrow, tok::period, tok::arrowstar, tok::periodstar) ||
-      (Right.is(tok::period) && Right.isNot(TT_DesignatedInitializerPeriod)))
+      (Right.is(tok::period) && Right.isNot(TT_DesignatedInitializerPeriod))) {
     return false;
+  }
   if (!Style.SpaceBeforeAssignmentOperators && Left.isNot(TT_TemplateCloser) &&
-      Right.getPrecedence() == prec::Assignment)
+      Right.getPrecedence() == prec::Assignment) {
     return false;
+  }
   if (Style.Language == FormatStyle::LK_Java && Right.is(tok::coloncolon) &&
-      (Left.is(tok::identifier) || Left.is(tok::kw_this)))
+      (Left.is(tok::identifier) || Left.is(tok::kw_this))) {
     return false;
-  if (Right.is(tok::coloncolon) && Left.is(tok::identifier))
+  }
+  if (Right.is(tok::coloncolon) && Left.is(tok::identifier)) {
     // Generally don't remove existing spaces between an identifier and "::".
     // The identifier might actually be a macro name such as ALWAYS_INLINE. If
     // this turns out to be too lenient, add analysis of the identifier itself.
     return Right.hasWhitespaceBefore();
+  }
   if (Right.is(tok::coloncolon) &&
-      !Left.isOneOf(tok::l_brace, tok::comment, tok::l_paren))
+      !Left.isOneOf(tok::l_brace, tok::comment, tok::l_paren)) {
     // Put a space between < and :: in vector< ::std::string >
     return (Left.is(TT_TemplateOpener) &&
             ((Style.Standard < FormatStyle::LS_Cpp11) ||
              ShouldAddSpacesInAngles())) ||
            !(Left.isOneOf(tok::l_paren, tok::r_paren, tok::l_square,
                           tok::kw___super, TT_TemplateOpener,
                           TT_TemplateCloser)) ||
            (Left.is(tok::l_paren) && Style.SpacesInParentheses);
+  }
   if ((Left.is(TT_TemplateOpener)) != (Right.is(TT_TemplateCloser)))
     return ShouldAddSpacesInAngles();
   // Space before TT_StructuredBindingLSquare.
-  if (Right.is(TT_StructuredBindingLSquare))
+  if (Right.is(TT_StructuredBindingLSquare)) {
     return !Left.isOneOf(tok::amp, tok::ampamp) ||
            getTokenReferenceAlignment(Left) != FormatStyle::PAS_Right;
+  }
   // Space before & or && following a TT_StructuredBindingLSquare.
   if (Right.Next && Right.Next->is(TT_StructuredBindingLSquare) &&
-      Right.isOneOf(tok::amp, tok::ampamp))
+      Right.isOneOf(tok::amp, tok::ampamp)) {
     return getTokenReferenceAlignment(Right) != FormatStyle::PAS_Left;
+  }
   if ((Right.is(TT_BinaryOperator) && !Left.is(tok::l_paren)) ||
       (Left.isOneOf(TT_BinaryOperator, TT_ConditionalExpr) &&
-       !Right.is(tok::r_paren)))
+       !Right.is(tok::r_paren))) {
     return true;
+  }
   if (Right.is(TT_TemplateOpener) && Left.is(tok::r_paren) &&
-      Left.MatchingParen && Left.MatchingParen->is(TT_OverloadedOperatorLParen))
+      Left.MatchingParen &&
+      Left.MatchingParen->is(TT_OverloadedOperatorLParen)) {
     return false;
+  }
   if (Right.is(tok::less) && Left.isNot(tok::l_paren) &&
-      Line.startsWith(tok::hash))
+      Line.startsWith(tok::hash)) {
     return true;
+  }
   if (Right.is(TT_TrailingUnaryOperator))
     return false;
   if (Left.is(TT_RegexLiteral))
     return false;
   return spaceRequiredBetween(Line, Left, Right);
 }
 
 // Returns 'true' if 'Tok' is a brace we'd want to break before in Allman style.

 bool TokenAnnotator::mustBreakBefore(const AnnotatedLine &Line,
                                      const FormatToken &Right) const {
   const FormatToken &Left = *Right.Previous;
   if (Right.NewlinesBefore > 1 && Style.MaxEmptyLinesToKeep > 0)
     return true;
 
   if (Style.isCSharp()) {
     if (Left.is(TT_FatArrow) && Right.is(tok::l_brace) &&
-        Style.BraceWrapping.AfterFunction)
+        Style.BraceWrapping.AfterFunction) {
       return true;
+    }
     if (Right.is(TT_CSharpNamedArgumentColon) ||
-        Left.is(TT_CSharpNamedArgumentColon))
+        Left.is(TT_CSharpNamedArgumentColon)) {
       return false;
+    }
     if (Right.is(TT_CSharpGenericTypeConstraint))
       return true;
     if (Right.Next && Right.Next->is(TT_FatArrow) &&
         (Right.is(tok::numeric_constant) ||
-         (Right.is(tok::identifier) && Right.TokenText == "_")))
+         (Right.is(tok::identifier) && Right.TokenText == "_"))) {
       return true;
+    }
 
     // Break after C# [...] and before public/protected/private/internal.
     if (Left.is(TT_AttributeSquare) && Left.is(tok::r_square) &&
         (Right.isAccessSpecifier(/*ColonRequired=*/false) ||
-         Right.is(Keywords.kw_internal)))
+         Right.is(Keywords.kw_internal))) {
       return true;
+    }
     // Break between ] and [ but only when there are really 2 attributes.
     if (Left.is(TT_AttributeSquare) && Right.is(TT_AttributeSquare) &&
-        Left.is(tok::r_square) && Right.is(tok::l_square))
+        Left.is(tok::r_square) && Right.is(tok::l_square)) {
       return true;
+    }
 
   } else if (Style.isJavaScript()) {
     // FIXME: This might apply to other languages and token kinds.
     if (Right.is(tok::string_literal) && Left.is(tok::plus) && Left.Previous &&
-        Left.Previous->is(tok::string_literal))
+        Left.Previous->is(tok::string_literal)) {
       return true;
+    }
     if (Left.is(TT_DictLiteral) && Left.is(tok::l_brace) && Line.Level == 0 &&
         Left.Previous && Left.Previous->is(tok::equal) &&
         Line.First->isOneOf(tok::identifier, Keywords.kw_import, tok::kw_export,
                             tok::kw_const) &&
         // kw_var/kw_let are pseudo-tokens that are tok::identifier, so match
         // above.
-        !Line.First->isOneOf(Keywords.kw_var, Keywords.kw_let))
+        !Line.First->isOneOf(Keywords.kw_var, Keywords.kw_let)) {
       // Object literals on the top level of a file are treated as "enum-style".
       // Each key/value pair is put on a separate line, instead of bin-packing.
       return true;
+    }
     if (Left.is(tok::l_brace) && Line.Level == 0 &&
         (Line.startsWith(tok::kw_enum) ||
          Line.startsWith(tok::kw_const, tok::kw_enum) ||
          Line.startsWith(tok::kw_export, tok::kw_enum) ||
-         Line.startsWith(tok::kw_export, tok::kw_const, tok::kw_enum)))
+         Line.startsWith(tok::kw_export, tok::kw_const, tok::kw_enum))) {
       // JavaScript top-level enum key/value pairs are put on separate lines
       // instead of bin-packing.
       return true;
+    }
     if (Right.is(tok::r_brace) && Left.is(tok::l_brace) && Left.Previous &&
         Left.Previous->is(TT_FatArrow)) {
       // JS arrow function (=> {...}).
       switch (Style.AllowShortLambdasOnASingleLine) {
       case FormatStyle::SLS_All:
         return false;
       case FormatStyle::SLS_None:
         return true;
       case FormatStyle::SLS_Empty:
         return !Left.Children.empty();
       case FormatStyle::SLS_Inline:
         // allow one-lining inline (e.g. in function call args) and empty arrow
         // functions.
         return (Left.NestingLevel == 0 && Line.Level == 0) &&
                !Left.Children.empty();
       }
       llvm_unreachable("Unknown FormatStyle::ShortLambdaStyle enum");
     }
 
     if (Right.is(tok::r_brace) && Left.is(tok::l_brace) &&
-        !Left.Children.empty())
+        !Left.Children.empty()) {
       // Support AllowShortFunctionsOnASingleLine for JavaScript.
       return Style.AllowShortFunctionsOnASingleLine == FormatStyle::SFS_None ||
              Style.AllowShortFunctionsOnASingleLine == FormatStyle::SFS_Empty ||
              (Left.NestingLevel == 0 && Line.Level == 0 &&
               Style.AllowShortFunctionsOnASingleLine &
                   FormatStyle::SFS_InlineOnly);
+    }
   } else if (Style.Language == FormatStyle::LK_Java) {
     if (Right.is(tok::plus) && Left.is(tok::string_literal) && Right.Next &&
-        Right.Next->is(tok::string_literal))
+        Right.Next->is(tok::string_literal)) {
       return true;
+    }
   } else if (Style.Language == FormatStyle::LK_Cpp ||
              Style.Language == FormatStyle::LK_ObjC ||
              Style.Language == FormatStyle::LK_Proto ||
              Style.Language == FormatStyle::LK_TableGen ||
              Style.Language == FormatStyle::LK_TextProto) {
     if (Left.isStringLiteral() && Right.isStringLiteral())
       return true;
   }
 
   // Basic JSON newline processing.
   if (Style.isJson()) {
     // Always break after a JSON record opener.
     // {
     // }
     if (Left.is(TT_DictLiteral) && Left.is(tok::l_brace))
       return true;
     // Always break after a JSON array opener.
     // [
     // ]
     if (Left.is(TT_ArrayInitializerLSquare) && Left.is(tok::l_square) &&
-        !Right.is(tok::r_square))
+        !Right.is(tok::r_square)) {
       return true;
+    }
     // Always break after successive entries.
     // 1,
     // 2
     if (Left.is(tok::comma))
       return true;
   }
 
   // If the last token before a '}', ']', or ')' is a comma or a trailing
   // comment, the intention is to insert a line break after it in order to make
   // shuffling around entries easier. Import statements, especially in
   // JavaScript, can be an exception to this rule.
   if (Style.JavaScriptWrapImports || Line.Type != LT_ImportStatement) {
     const FormatToken *BeforeClosingBrace = nullptr;
     if ((Left.isOneOf(tok::l_brace, TT_ArrayInitializerLSquare) ||
          (Style.isJavaScript() && Left.is(tok::l_paren))) &&
-        Left.isNot(BK_Block) && Left.MatchingParen)
+        Left.isNot(BK_Block) && Left.MatchingParen) {
       BeforeClosingBrace = Left.MatchingParen->Previous;
-    else if (Right.MatchingParen &&
+    } else if (Right.MatchingParen &&
                (Right.MatchingParen->isOneOf(tok::l_brace,
                                              TT_ArrayInitializerLSquare) ||
-              (Style.isJavaScript() && Right.MatchingParen->is(tok::l_paren))))
+                (Style.isJavaScript() &&
+                 Right.MatchingParen->is(tok::l_paren)))) {
       BeforeClosingBrace = &Left;
+    }
     if (BeforeClosingBrace && (BeforeClosingBrace->is(tok::comma) ||
-                               BeforeClosingBrace->isTrailingComment()))
+                               BeforeClosingBrace->isTrailingComment())) {
       return true;
     }
+  }
 
-  if (Right.is(tok::comment))
+  if (Right.is(tok::comment)) {
     return Left.isNot(BK_BracedInit) && Left.isNot(TT_CtorInitializerColon) &&
            (Right.NewlinesBefore > 0 && Right.HasUnescapedNewline);
+  }
   if (Left.isTrailingComment())
     return true;
   if (Left.IsUnterminatedLiteral)
     return true;
   if (Right.is(tok::lessless) && Right.Next && Left.is(tok::string_literal) &&
-      Right.Next->is(tok::string_literal))
+      Right.Next->is(tok::string_literal)) {
     return true;
+  }
   if (Right.is(TT_RequiresClause)) {
     switch (Style.RequiresClausePosition) {
     case FormatStyle::RCPS_OwnLine:
     case FormatStyle::RCPS_WithFollowing:
       return true;
     default:
       break;
     }
if (Left.ClosesRequiresClause && Right.isNot(tok::semi)) {
     case FormatStyle::RCPS_WithPreceding:
       return true;
     default:
       break;
     }
   }
   if (Style.PackConstructorInitializers == FormatStyle::PCIS_Never) {
     if (Style.BreakConstructorInitializers == FormatStyle::BCIS_BeforeColon &&
-        (Left.is(TT_CtorInitializerComma) || Right.is(TT_CtorInitializerColon)))
+        (Left.is(TT_CtorInitializerComma) ||
+         Right.is(TT_CtorInitializerColon))) {
       return true;
+    }
 
     if (Style.BreakConstructorInitializers == FormatStyle::BCIS_AfterColon &&
-        Left.isOneOf(TT_CtorInitializerColon, TT_CtorInitializerComma))
+        Left.isOneOf(TT_CtorInitializerColon, TT_CtorInitializerComma)) {
       return true;
     }
+  }
   if (Style.PackConstructorInitializers < FormatStyle::PCIS_CurrentLine &&
       Style.BreakConstructorInitializers == FormatStyle::BCIS_BeforeComma &&
-      Right.isOneOf(TT_CtorInitializerComma, TT_CtorInitializerColon))
+      Right.isOneOf(TT_CtorInitializerComma, TT_CtorInitializerColon)) {
     return true;
+  }
   // Break only if we have multiple inheritance.
   if (Style.BreakInheritanceList == FormatStyle::BILS_BeforeComma &&
-      Right.is(TT_InheritanceComma))
+      Right.is(TT_InheritanceComma)) {
     return true;
+  }
   if (Style.BreakInheritanceList == FormatStyle::BILS_AfterComma &&
-      Left.is(TT_InheritanceComma))
+      Left.is(TT_InheritanceComma)) {
     return true;
-  if (Right.is(tok::string_literal) && Right.TokenText.startswith("R\""))
+  }
+  if (Right.is(tok::string_literal) && Right.TokenText.startswith("R\"")) {
     // Multiline raw string literals are special wrt. line breaks. The author
     // has made a deliberate choice and might have aligned the contents of the
     // string literal accordingly. Thus, we try keep existing line breaks.
     return Right.IsMultiline && Right.NewlinesBefore > 0;
+  }
   if ((Left.is(tok::l_brace) || (Left.is(tok::less) && Left.Previous &&
                                  Left.Previous->is(tok::equal))) &&
       Right.NestingLevel == 1 && Style.Language == FormatStyle::LK_Proto) {
     // Don't put enums or option definitions onto single lines in protocol
     // buffers.
     return true;
   }
   if (Right.is(TT_InlineASMBrace))
     return Right.HasUnescapedNewline;
 
   if (isAllmanBrace(Left) || isAllmanBrace(Right)) {
     auto FirstNonComment = getFirstNonComment(Line);
     bool AccessSpecifier =
         FirstNonComment &&
         FirstNonComment->isOneOf(Keywords.kw_internal, tok::kw_public,
                                  tok::kw_private, tok::kw_protected);
 
     if (Style.BraceWrapping.AfterEnum) {
       if (Line.startsWith(tok::kw_enum) ||
-          Line.startsWith(tok::kw_typedef, tok::kw_enum))
+          Line.startsWith(tok::kw_typedef, tok::kw_enum)) {
         return true;
+      }
       // Ensure BraceWrapping for `public enum A {`.
       if (AccessSpecifier && FirstNonComment->Next &&
-          FirstNonComment->Next->is(tok::kw_enum))
+          FirstNonComment->Next->is(tok::kw_enum)) {
         return true;
       }
+    }
 
     // Ensure BraceWrapping for `public interface A {`.
     if (Style.BraceWrapping.AfterClass &&
         ((AccessSpecifier && FirstNonComment->Next &&
           FirstNonComment->Next->is(Keywords.kw_interface)) ||
-         Line.startsWith(Keywords.kw_interface)))
+         Line.startsWith(Keywords.kw_interface))) {
       return true;
+    }
 
     return (Line.startsWith(tok::kw_class) && Style.BraceWrapping.AfterClass) ||
            (Line.startsWith(tok::kw_struct) && Style.BraceWrapping.AfterStruct);
   }
 
   if (Left.is(TT_ObjCBlockLBrace) &&
-      Style.AllowShortBlocksOnASingleLine == FormatStyle::SBS_Never)
+      Style.AllowShortBlocksOnASingleLine == FormatStyle::SBS_Never) {
     return true;
+  }
 
   // Ensure wrapping after __attribute__((XX)) and @interface etc.
   if (Left.is(TT_AttributeParen) && Right.is(TT_ObjCDecl))
     return true;
 
   if (Left.is(TT_LambdaLBrace)) {
     if (IsFunctionArgument(Left) &&
-        Style.AllowShortLambdasOnASingleLine == FormatStyle::SLS_Inline)
+        Style.AllowShortLambdasOnASingleLine == FormatStyle::SLS_Inline) {
       return false;
+    }
 
     if (Style.AllowShortLambdasOnASingleLine == FormatStyle::SLS_None ||
         Style.AllowShortLambdasOnASingleLine == FormatStyle::SLS_Inline ||
         (!Left.Children.empty() &&
-         Style.AllowShortLambdasOnASingleLine == FormatStyle::SLS_Empty))
+         Style.AllowShortLambdasOnASingleLine == FormatStyle::SLS_Empty)) {
       return true;
     }
+  }
 
   if (Style.BraceWrapping.BeforeLambdaBody && Right.is(TT_LambdaLBrace) &&
-      Left.isOneOf(tok::star, tok::amp, tok::ampamp, TT_TemplateCloser))
+      Left.isOneOf(tok::star, tok::amp, tok::ampamp, TT_TemplateCloser)) {
     return true;
+  }
 
   // Put multiple Java annotation on a new line.
   if ((Style.Language == FormatStyle::LK_Java || Style.isJavaScript()) &&
       Left.is(TT_LeadingJavaAnnotation) &&
       Right.isNot(TT_LeadingJavaAnnotation) && Right.isNot(tok::l_paren) &&
-      (Line.Last->is(tok::l_brace) || Style.BreakAfterJavaFieldAnnotations))
+      (Line.Last->is(tok::l_brace) || Style.BreakAfterJavaFieldAnnotations)) {
     return true;
+  }
 
   if (Right.is(TT_ProtoExtensionLSquare))
     return true;
 
   // In text proto instances if a submessage contains at least 2 entries and at
   // least one of them is a submessage, like A { ... B { ... } ... },
   // put all of the entries of A on separate lines by forcing the selector of
   // the submessage B to be put on a newline.

 }
 
 bool TokenAnnotator::canBreakBefore(const AnnotatedLine &Line,
                                     const FormatToken &Right) const {
   const FormatToken &Left = *Right.Previous;
   // Language-specific stuff.
   if (Style.isCSharp()) {
     if (Left.isOneOf(TT_CSharpNamedArgumentColon, TT_AttributeColon) ||
-        Right.isOneOf(TT_CSharpNamedArgumentColon, TT_AttributeColon))
+        Right.isOneOf(TT_CSharpNamedArgumentColon, TT_AttributeColon)) {
       return false;
+    }
     // Only break after commas for generic type constraints.
     if (Line.First->is(TT_CSharpGenericTypeConstraint))
       return Left.is(TT_CSharpGenericTypeConstraintComma);
     // Keep nullable operators attached to their identifiers.
     if (Right.is(TT_CSharpNullable))
       return false;
   } else if (Style.Language == FormatStyle::LK_Java) {
     if (Left.isOneOf(Keywords.kw_throws, Keywords.kw_extends,
-                     Keywords.kw_implements))
+                     Keywords.kw_implements)) {
       return false;
+    }
     if (Right.isOneOf(Keywords.kw_throws, Keywords.kw_extends,
-                      Keywords.kw_implements))
+                      Keywords.kw_implements)) {
       return true;
+    }
   } else if (Style.isJavaScript()) {
     const FormatToken *NonComment = Right.getPreviousNonComment();
     if (NonComment &&
         NonComment->isOneOf(
             tok::kw_return, Keywords.kw_yield, tok::kw_continue, tok::kw_break,
             tok::kw_throw, Keywords.kw_interface, Keywords.kw_type,
             tok::kw_static, tok::kw_public, tok::kw_private, tok::kw_protected,
             Keywords.kw_readonly, Keywords.kw_override, Keywords.kw_abstract,
             Keywords.kw_get, Keywords.kw_set, Keywords.kw_async,
-            Keywords.kw_await))
+            Keywords.kw_await)) {
       return false; // Otherwise automatic semicolon insertion would trigger.
+    }
     if (Right.NestingLevel == 0 &&
         (Left.Tok.getIdentifierInfo() ||
          Left.isOneOf(tok::r_square, tok::r_paren)) &&
-        Right.isOneOf(tok::l_square, tok::l_paren))
+        Right.isOneOf(tok::l_square, tok::l_paren)) {
       return false; // Otherwise automatic semicolon insertion would trigger.
+    }
     if (NonComment && NonComment->is(tok::identifier) &&
-        NonComment->TokenText == "asserts")
+        NonComment->TokenText == "asserts") {
       return false;
+    }
     if (Left.is(TT_FatArrow) && Right.is(tok::l_brace))
       return false;
     if (Left.is(TT_JsTypeColon))
       return true;
     // Don't wrap between ":" and "!" of a strict prop init ("field!: type;").
     if (Left.is(tok::exclaim) && Right.is(tok::colon))
       return false;
     // Look for is type annotations like:
if (Style.isCSharp()) {
     if (Left.is(Keywords.kw_as))
       return true;
     if (Left.is(TT_NonNullAssertion))
       return true;
     if (Left.is(Keywords.kw_declare) &&
         Right.isOneOf(Keywords.kw_module, tok::kw_namespace,
                       Keywords.kw_function, tok::kw_class, tok::kw_enum,
                       Keywords.kw_interface, Keywords.kw_type, Keywords.kw_var,
-                      Keywords.kw_let, tok::kw_const))
+                      Keywords.kw_let, tok::kw_const)) {
       // See grammar for 'declare' statements at:
       // https://github.com/Microsoft/TypeScript/blob/main/doc/spec-ARCHIVED.md#A.10
       return false;
+    }
     if (Left.isOneOf(Keywords.kw_module, tok::kw_namespace) &&
-        Right.isOneOf(tok::identifier, tok::string_literal))
+        Right.isOneOf(tok::identifier, tok::string_literal)) {
       return false; // must not break in "module foo { ...}"
+    }
     if (Right.is(TT_TemplateString) && Right.closesScope())
       return false;
     // Don't split tagged template literal so there is a break between the tag
     // identifier and template string.
     if (Left.is(tok::identifier) && Right.is(TT_TemplateString))
       return false;
     if (Left.is(TT_TemplateString) && Left.opensScope())
       return true;
   }
 
   if (Left.is(tok::at))
     return false;
   if (Left.Tok.getObjCKeywordID() == tok::objc_interface)
     return false;
   if (Left.isOneOf(TT_JavaAnnotation, TT_LeadingJavaAnnotation))
     return !Right.is(tok::l_paren);
-  if (Right.is(TT_PointerOrReference))
+  if (Right.is(TT_PointerOrReference)) {
     return Line.IsMultiVariableDeclStmt ||
            (getTokenPointerOrReferenceAlignment(Right) ==
                 FormatStyle::PAS_Right &&
             (!Right.Next || Right.Next->isNot(TT_FunctionDeclarationName)));
+  }
   if (Right.isOneOf(TT_StartOfName, TT_FunctionDeclarationName) ||
-      Right.is(tok::kw_operator))
+      Right.is(tok::kw_operator)) {
     return true;
+  }
   if (Left.is(TT_PointerOrReference))
     return false;
-  if (Right.isTrailingComment())
+  if (Right.isTrailingComment()) {
     // We rely on MustBreakBefore being set correctly here as we should not
     // change the "binding" behavior of a comment.
     // The first comment in a braced lists is always interpreted as belonging to
     // the first list element. Otherwise, it should be placed outside of the
     // list.
     return Left.is(BK_BracedInit) ||
            (Left.is(TT_CtorInitializerColon) &&
             Style.BreakConstructorInitializers == FormatStyle::BCIS_AfterColon);
+  }
   if (Left.is(tok::question) && Right.is(tok::colon))
     return false;
   if (Right.is(TT_ConditionalExpr) || Right.is(tok::question))
     return Style.BreakBeforeTernaryOperators;
   if (Left.is(TT_ConditionalExpr) || Left.is(tok::question))
     return !Style.BreakBeforeTernaryOperators;
   if (Left.is(TT_InheritanceColon))
     return Style.BreakInheritanceList == FormatStyle::BILS_AfterColon;
   if (Right.is(TT_InheritanceColon))
     return Style.BreakInheritanceList != FormatStyle::BILS_AfterColon;
   if (Right.is(TT_ObjCMethodExpr) && !Right.is(tok::r_square) &&
-      Left.isNot(TT_SelectorName))
+      Left.isNot(TT_SelectorName)) {
     return true;
+  }
 
   if (Right.is(tok::colon) &&
-      !Right.isOneOf(TT_CtorInitializerColon, TT_InlineASMColon))
+      !Right.isOneOf(TT_CtorInitializerColon, TT_InlineASMColon)) {
     return false;
+  }
   if (Left.is(tok::colon) && Left.isOneOf(TT_DictLiteral, TT_ObjCMethodExpr)) {
     if (Style.Language == FormatStyle::LK_Proto ||
         Style.Language == FormatStyle::LK_TextProto) {
       if (!Style.AlwaysBreakBeforeMultilineStrings && Right.isStringLiteral())
         return false;
       // Prevent cases like:
       //
       // submessage:
if (Style.Language == FormatStyle::LK_Proto ||
       //
       // The code covers the cases:
       //
       // submessage: { ... }
       // submessage: < ... >
       // repeated: [ ... ]
       if (((Right.is(tok::l_brace) || Right.is(tok::less)) &&
            Right.is(TT_DictLiteral)) ||
-          Right.is(TT_ArrayInitializerLSquare))
+          Right.is(TT_ArrayInitializerLSquare)) {
         return false;
       }
+    }
     return true;
   }
   if (Right.is(tok::r_square) && Right.MatchingParen &&
-      Right.MatchingParen->is(TT_ProtoExtensionLSquare))
+      Right.MatchingParen->is(TT_ProtoExtensionLSquare)) {
     return false;
+  }
   if (Right.is(TT_SelectorName) || (Right.is(tok::identifier) && Right.Next &&
-                                    Right.Next->is(TT_ObjCMethodExpr)))
+                                    Right.Next->is(TT_ObjCMethodExpr))) {
     return Left.isNot(tok::period); // FIXME: Properly parse ObjC calls.
+  }
   if (Left.is(tok::r_paren) && Line.Type == LT_ObjCProperty)
     return true;
   if (Right.is(tok::kw_concept))
     return Style.BreakBeforeConceptDeclarations != FormatStyle::BBCDS_Never;
   if (Right.is(TT_RequiresClause))
     return true;
   if (Left.ClosesTemplateDeclaration || Left.is(TT_FunctionAnnotationRParen))
     return true;
   if (Left.ClosesRequiresClause)
     return true;
   if (Right.isOneOf(TT_RangeBasedForLoopColon, TT_OverloadedOperatorLParen,
-                    TT_OverloadedOperator))
+                    TT_OverloadedOperator)) {
     return false;
+  }
   if (Left.is(TT_RangeBasedForLoopColon))
     return true;
   if (Right.is(TT_RangeBasedForLoopColon))
     return false;
   if (Left.is(TT_TemplateCloser) && Right.is(TT_TemplateOpener))
     return true;
   if ((Left.is(tok::greater) && Right.is(tok::greater)) ||
-      (Left.is(tok::less) && Right.is(tok::less)))
+      (Left.is(tok::less) && Right.is(tok::less))) {
     return false;
+  }
   if (Right.is(TT_BinaryOperator) &&
       Style.BreakBeforeBinaryOperators != FormatStyle::BOS_None &&
       (Style.BreakBeforeBinaryOperators == FormatStyle::BOS_All ||
-       Right.getPrecedence() != prec::Assignment))
+       Right.getPrecedence() != prec::Assignment)) {
     return true;
+  }
   if (Left.isOneOf(TT_TemplateCloser, TT_UnaryOperator) ||
-      Left.is(tok::kw_operator))
+      Left.is(tok::kw_operator)) {
     return false;
+  }
   if (Left.is(tok::equal) && !Right.isOneOf(tok::kw_default, tok::kw_delete) &&
-      Line.Type == LT_VirtualFunctionDecl && Left.NestingLevel == 0)
+      Line.Type == LT_VirtualFunctionDecl && Left.NestingLevel == 0) {
     return false;
+  }
   if (Left.is(tok::equal) && Right.is(tok::l_brace) &&
-      !Style.Cpp11BracedListStyle)
+      !Style.Cpp11BracedListStyle) {
     return false;
+  }
   if (Left.is(tok::l_paren) &&
-      Left.isOneOf(TT_AttributeParen, TT_TypeDeclarationParen))
+      Left.isOneOf(TT_AttributeParen, TT_TypeDeclarationParen)) {
     return false;
+  }
   if (Left.is(tok::l_paren) && Left.Previous &&
-      (Left.Previous->isOneOf(TT_BinaryOperator, TT_CastRParen)))
+      (Left.Previous->isOneOf(TT_BinaryOperator, TT_CastRParen))) {
     return false;
+  }
   if (Right.is(TT_ImplicitStringLiteral))
     return false;
 
   if (Right.is(TT_TemplateCloser))
     return false;
   if (Right.is(tok::r_square) && Right.MatchingParen &&
-      Right.MatchingParen->is(TT_LambdaLSquare))
+      Right.MatchingParen->is(TT_LambdaLSquare)) {
     return false;
+  }
 
   // We only break before r_brace if there was a corresponding break before
   // the l_brace, which is tracked by BreakBeforeClosingBrace.
   if (Right.is(tok::r_brace))
     return Right.MatchingParen && Right.MatchingParen->is(BK_Block);
 
   // We only break before r_paren if we're in a block indented context.
   if (Right.is(tok::r_paren)) {
     if (Style.AlignAfterOpenBracket != FormatStyle::BAS_BlockIndent ||
-        !Right.MatchingParen)
+        !Right.MatchingParen) {
       return false;
+    }
     const FormatToken *Previous = Right.MatchingParen->Previous;
     return !(Previous && (Previous->is(tok::kw_for) || Previous->isIf()));
   }
 
   // Allow breaking after a trailing annotation, e.g. after a method
   // declaration.
-  if (Left.is(TT_TrailingAnnotation))
+  if (Left.is(TT_TrailingAnnotation)) {
     return !Right.isOneOf(tok::l_brace, tok::semi, tok::equal, tok::l_paren,
                           tok::less, tok::coloncolon);
+  }
 
   if (Right.is(tok::kw___attribute) ||
-      (Right.is(tok::l_square) && Right.is(TT_AttributeSquare)))
+      (Right.is(tok::l_square) && Right.is(TT_AttributeSquare))) {
     return !Left.is(TT_AttributeSquare);
+  }
 
   if (Left.is(tok::identifier) && Right.is(tok::string_literal))
     return true;
 
   if (Right.is(tok::identifier) && Right.Next && Right.Next->is(TT_DictLiteral))
     return true;
 
   if (Left.is(TT_CtorInitializerColon))
     return Style.BreakConstructorInitializers == FormatStyle::BCIS_AfterColon;
   if (Right.is(TT_CtorInitializerColon))
     return Style.BreakConstructorInitializers != FormatStyle::BCIS_AfterColon;
   if (Left.is(TT_CtorInitializerComma) &&
-      Style.BreakConstructorInitializers == FormatStyle::BCIS_BeforeComma)
+      Style.BreakConstructorInitializers == FormatStyle::BCIS_BeforeComma) {
     return false;
+  }
   if (Right.is(TT_CtorInitializerComma) &&
-      Style.BreakConstructorInitializers == FormatStyle::BCIS_BeforeComma)
+      Style.BreakConstructorInitializers == FormatStyle::BCIS_BeforeComma) {
     return true;
+  }
   if (Left.is(TT_InheritanceComma) &&
-      Style.BreakInheritanceList == FormatStyle::BILS_BeforeComma)
+      Style.BreakInheritanceList == FormatStyle::BILS_BeforeComma) {
     return false;
+  }
   if (Right.is(TT_InheritanceComma) &&
-      Style.BreakInheritanceList == FormatStyle::BILS_BeforeComma)
+      Style.BreakInheritanceList == FormatStyle::BILS_BeforeComma) {
     return true;
+  }
   if (Left.is(TT_ArrayInitializerLSquare))
     return true;
   if (Right.is(tok::kw_typename) && Left.isNot(tok::kw_const))
     return true;
   if ((Left.isBinaryOperator() || Left.is(TT_BinaryOperator)) &&
       !Left.isOneOf(tok::arrowstar, tok::lessless) &&
       Style.BreakBeforeBinaryOperators != FormatStyle::BOS_All &&
       (Style.BreakBeforeBinaryOperators == FormatStyle::BOS_None ||
-       Left.getPrecedence() == prec::Assignment))
+       Left.getPrecedence() == prec::Assignment)) {
     return true;
+  }
   if ((Left.is(TT_AttributeSquare) && Right.is(tok::l_square)) ||
-      (Left.is(tok::r_square) && Right.is(TT_AttributeSquare)))
+      (Left.is(tok::r_square) && Right.is(TT_AttributeSquare))) {
     return false;
+  }
 
   auto ShortLambdaOption = Style.AllowShortLambdasOnASingleLine;
   if (Style.BraceWrapping.BeforeLambdaBody && Right.is(TT_LambdaLBrace)) {
     if (isAllmanLambdaBrace(Left))
       return !isItAnEmptyLambdaAllowed(Left, ShortLambdaOption);
     if (isAllmanLambdaBrace(Right))
       return !isItAnEmptyLambdaAllowed(Right, ShortLambdaOption);
   }

clang/lib/Format/UnwrappedLineFormatter.cpp

public:
   /// When a line is not formatted, we move the subsequent lines on the same
   /// level to the same indent.
   /// Note that \c nextLine must have been called before this method.
   void adjustToUnmodifiedLine(const AnnotatedLine &Line) {
     unsigned LevelIndent = Line.First->OriginalColumn;
     if (static_cast<int>(LevelIndent) - Offset >= 0)
       LevelIndent -= Offset;
     if ((!Line.First->is(tok::comment) || IndentForLevel[Line.Level] == -1) &&
-        !Line.InPPDirective)
+        !Line.InPPDirective) {
       IndentForLevel[Line.Level] = LevelIndent;
     }
+  }
 
 private:
   /// Get the offset of the line relatively to the level.
   ///
   /// For example, 'public:' labels in classes are offset by 1 or 2
   /// characters to the left from their level.
   int getIndentOffset(const FormatToken &RootToken) {
     if (Style.Language == FormatStyle::LK_Java || Style.isJavaScript() ||
-        Style.isCSharp())
+        Style.isCSharp()) {
       return 0;
+    }
 
     auto IsAccessModifier = [this, &RootToken]() {
-      if (RootToken.isAccessSpecifier(Style.isCpp()))
+      if (RootToken.isAccessSpecifier(Style.isCpp())) {
         return true;
-      else if (RootToken.isObjCAccessSpecifier())
+      } else if (RootToken.isObjCAccessSpecifier()) {
         return true;
+      }
       // Handle Qt signals.
       else if ((RootToken.isOneOf(Keywords.kw_signals, Keywords.kw_qsignals) &&
-                RootToken.Next && RootToken.Next->is(tok::colon)))
+                RootToken.Next && RootToken.Next->is(tok::colon))) {
         return true;
-      else if (RootToken.Next &&
-               RootToken.Next->isOneOf(Keywords.kw_slots, Keywords.kw_qslots) &&
-               RootToken.Next->Next && RootToken.Next->Next->is(tok::colon))
+      } else if (RootToken.Next &&
+                 RootToken.Next->isOneOf(Keywords.kw_slots,
+                                         Keywords.kw_qslots) &&
+                 RootToken.Next->Next && RootToken.Next->Next->is(tok::colon)) {
         return true;
+      }
       // Handle malformed access specifier e.g. 'private' without trailing ':'.
-      else if (!RootToken.Next && RootToken.isAccessSpecifier(false))
+      else if (!RootToken.Next && RootToken.isAccessSpecifier(false)) {
         return true;
+      }
       return false;
     };
 
     if (IsAccessModifier()) {
       // The AccessModifierOffset may be overridden by IndentAccessModifiers,
       // in which case we take a negative value of the IndentWidth to simulate
       // the upper indent level.
       return Style.IndentAccessModifiers ? -Style.IndentWidth
public:
   /// Returns the next line, merging multiple lines into one if possible.
   const AnnotatedLine *getNextMergedLine(bool DryRun,
                                          LevelIndentTracker &IndentTracker) {
     if (Next == End)
       return nullptr;
     const AnnotatedLine *Current = *Next;
     IndentTracker.nextLine(*Current);
     unsigned MergedLines = tryFitMultipleLinesInOne(IndentTracker, Next, End);
-    if (MergedLines > 0 && Style.ColumnLimit == 0)
+    if (MergedLines > 0 && Style.ColumnLimit == 0) {
       // Disallow line merging if there is a break at the start of one of the
       // input lines.
       for (unsigned i = 0; i < MergedLines; ++i)
         if (Next[i + 1]->First->NewlinesBefore > 0)
           MergedLines = 0;
+    }
     if (!DryRun)
       for (unsigned i = 0; i < MergedLines; ++i)
         join(*Next[0], *Next[i + 1]);
     Next = Next + MergedLines + 1;
     return Current;
   }
 
 private:
tryFitMultipleLinesInOne(LevelIndentTracker &IndentTracker,
     // We can never merge stuff if there are trailing line comments.
     const AnnotatedLine *TheLine = *I;
     if (TheLine->Last->is(TT_LineComment))
       return 0;
     const auto &NextLine = *I[1];
     if (NextLine.Type == LT_Invalid || NextLine.First->MustBreakBefore)
       return 0;
     if (TheLine->InPPDirective &&
-        (!NextLine.InPPDirective || NextLine.First->HasUnescapedNewline))
+        (!NextLine.InPPDirective || NextLine.First->HasUnescapedNewline)) {
       return 0;
+    }
 
     if (Style.ColumnLimit > 0 && Indent > Style.ColumnLimit)
       return 0;
 
     unsigned Limit =
         Style.ColumnLimit == 0 ? UINT_MAX : Style.ColumnLimit - Indent;
     // If we already exceed the column limit, we set 'Limit' to 0. The different
     // tryMerge..() functions can then decide whether to still do merging.
     Limit = TheLine->Last->TotalLength > Limit
                 ? 0
                 : Limit - TheLine->Last->TotalLength;
 
     if (TheLine->Last->is(TT_FunctionLBrace) &&
         TheLine->First == TheLine->Last &&
         !Style.BraceWrapping.SplitEmptyFunction &&
-        NextLine.First->is(tok::r_brace))
+        NextLine.First->is(tok::r_brace)) {
       return tryMergeSimpleBlock(I, E, Limit);
+    }
 
     const auto *PreviousLine = I != AnnotatedLines.begin() ? I[-1] : nullptr;
     // Handle empty record blocks where the brace has already been wrapped.
     if (PreviousLine && TheLine->Last->is(tok::l_brace) &&
         TheLine->First == TheLine->Last) {
       bool EmptyBlock = NextLine.First->is(tok::r_brace);
 
       const FormatToken *Tok = PreviousLine->First;
       if (Tok && Tok->is(tok::comment))
         Tok = Tok->getNextNonComment();
 
-      if (Tok && Tok->getNamespaceToken())
+      if (Tok && Tok->getNamespaceToken()) {
         return !Style.BraceWrapping.SplitEmptyNamespace && EmptyBlock
                    ? tryMergeSimpleBlock(I, E, Limit)
                    : 0;
+      }
 
       if (Tok && Tok->is(tok::kw_typedef))
         Tok = Tok->getNextNonComment();
       if (Tok && Tok->isOneOf(tok::kw_class, tok::kw_struct, tok::kw_union,
-                              tok::kw_extern, Keywords.kw_interface))
+                              tok::kw_extern, Keywords.kw_interface)) {
         return !Style.BraceWrapping.SplitEmptyRecord && EmptyBlock
                    ? tryMergeSimpleBlock(I, E, Limit)
                    : 0;
+      }
 
       if (Tok && Tok->is(tok::kw_template) &&
-          Style.BraceWrapping.SplitEmptyRecord && EmptyBlock)
+          Style.BraceWrapping.SplitEmptyRecord && EmptyBlock) {
         return 0;
       }
+    }
 
     auto ShouldMergeShortFunctions = [this, &I, &NextLine, PreviousLine,
                                       TheLine]() {
       if (Style.AllowShortFunctionsOnASingleLine == FormatStyle::SFS_All)
         return true;
       if (Style.AllowShortFunctionsOnASingleLine >= FormatStyle::SFS_Empty &&
-          NextLine.First->is(tok::r_brace))
+          NextLine.First->is(tok::r_brace)) {
         return true;
+      }
 
       if (Style.AllowShortFunctionsOnASingleLine &
           FormatStyle::SFS_InlineOnly) {
         // Just checking TheLine->Level != 0 is not enough, because it
         // provokes treating functions inside indented namespaces as short.
         if (Style.isJavaScript() && TheLine->Last->is(TT_FunctionLBrace))
           return true;
 
tryFitMultipleLinesInOne(LevelIndentTracker &IndentTracker,
     if (PreviousLine && TheLine->First->is(tok::l_brace)) {
       switch (PreviousLine->First->Tok.getKind()) {
       case tok::at:
         // Don't merge block with left brace wrapped after ObjC special blocks.
         if (PreviousLine->First->Next) {
           tok::ObjCKeywordKind kwId =
               PreviousLine->First->Next->Tok.getObjCKeywordID();
           if (kwId == tok::objc_autoreleasepool ||
-              kwId == tok::objc_synchronized)
+              kwId == tok::objc_synchronized) {
             return 0;
           }
+        }
         break;
 
       case tok::kw_case:
       case tok::kw_default:
         // Don't merge block with left brace wrapped after case labels.
         return 0;
 
       default:
if (PreviousLine && Style.BraceWrapping.SplitEmptyRecord &&
           Previous = Previous->getPreviousNonComment();
         if (Previous) {
           if (Previous->is(tok::greater) && !PreviousLine->InPPDirective)
             return 0;
           if (Previous->is(tok::identifier)) {
             const FormatToken *PreviousPrevious =
                 Previous->getPreviousNonComment();
             if (PreviousPrevious &&
-                PreviousPrevious->isOneOf(tok::kw_class, tok::kw_struct))
+                PreviousPrevious->isOneOf(tok::kw_class, tok::kw_struct)) {
               return 0;
             }
           }
         }
       }
+    }
 
     if (TheLine->Last->is(tok::l_brace)) {
       bool ShouldMerge = false;
       // Try to merge records.
       if (TheLine->Last->is(TT_EnumLBrace)) {
         ShouldMerge = Style.AllowShortEnumsOnASingleLine;
       } else if (TheLine->Last->isOneOf(TT_ClassLBrace, TT_StructLBrace)) {
         // NOTE: We use AfterClass (whereas AfterStruct exists) for both classes
if (TheLine->First->isOneOf(tok::kw_for, tok::kw_while, tok::kw_do,
                  : 0;
     }
     if (TheLine->First->isOneOf(tok::kw_case, tok::kw_default)) {
       return Style.AllowShortCaseLabelsOnASingleLine
                  ? tryMergeShortCaseLabels(I, E, Limit)
                  : 0;
     }
     if (TheLine->InPPDirective &&
-        (TheLine->First->HasUnescapedNewline || TheLine->First->IsFirst))
+        (TheLine->First->HasUnescapedNewline || TheLine->First->IsFirst)) {
       return tryMergeSimplePPDirective(I, E, Limit);
+    }
     return 0;
   }
 
   unsigned
   tryMergeSimplePPDirective(SmallVectorImpl<AnnotatedLine *>::const_iterator I,
                             SmallVectorImpl<AnnotatedLine *>::const_iterator E,
                             unsigned Limit) {
     if (Limit == 0)
       return 0;
     if (I + 2 != E && I[2]->InPPDirective && !I[2]->First->HasUnescapedNewline)
       return 0;
     if (1 + I[1]->Last->TotalLength > Limit)
       return 0;
     return 1;
   }
 
   unsigned tryMergeSimpleControlStatement(
       SmallVectorImpl<AnnotatedLine *>::const_iterator I,
       SmallVectorImpl<AnnotatedLine *>::const_iterator E, unsigned Limit) {
     if (Limit == 0)
       return 0;
     if (Style.BraceWrapping.AfterControlStatement ==
             FormatStyle::BWACS_Always &&
         I[1]->First->is(tok::l_brace) &&
-        Style.AllowShortBlocksOnASingleLine == FormatStyle::SBS_Never)
+        Style.AllowShortBlocksOnASingleLine == FormatStyle::SBS_Never) {
       return 0;
+    }
     if (I[1]->InPPDirective != (*I)->InPPDirective ||
-        (I[1]->InPPDirective && I[1]->First->HasUnescapedNewline))
+        (I[1]->InPPDirective && I[1]->First->HasUnescapedNewline)) {
       return 0;
+    }
     Limit = limitConsideringMacros(I + 1, E, Limit);
     AnnotatedLine &Line = **I;
     if (!Line.First->is(tok::kw_do) && !Line.First->is(tok::kw_else) &&
-        !Line.Last->is(tok::kw_else) && Line.Last->isNot(tok::r_paren))
+        !Line.Last->is(tok::kw_else) && Line.Last->isNot(tok::r_paren)) {
       return 0;
+    }
     // Only merge `do while` if `do` is the only statement on the line.
     if (Line.First->is(tok::kw_do) && !Line.Last->is(tok::kw_do))
       return 0;
     if (1 + I[1]->Last->TotalLength > Limit)
       return 0;
     // Don't merge with loops, ifs, a single semicolon or a line comment.
     if (I[1]->First->isOneOf(tok::semi, tok::kw_if, tok::kw_for, tok::kw_while,
-                             TT_ForEachMacro, TT_LineComment))
+                             TT_ForEachMacro, TT_LineComment)) {
       return 0;
+    }
     // Only inline simple if's (no nested if or else), unless specified
     if (Style.AllowShortIfStatementsOnASingleLine ==
         FormatStyle::SIS_WithoutElse) {
       if (I + 2 != E && Line.startsWith(tok::kw_if) &&
-          I[2]->First->is(tok::kw_else))
+          I[2]->First->is(tok::kw_else)) {
         return 0;
       }
+    }
     return 1;
   }
 
   unsigned
   tryMergeShortCaseLabels(SmallVectorImpl<AnnotatedLine *>::const_iterator I,
                           SmallVectorImpl<AnnotatedLine *>::const_iterator E,
                           unsigned Limit) {
     if (Limit == 0 || I + 1 == E ||
-        I[1]->First->isOneOf(tok::kw_case, tok::kw_default))
+        I[1]->First->isOneOf(tok::kw_case, tok::kw_default)) {
       return 0;
+    }
     if (I[0]->Last->is(tok::l_brace) || I[1]->First->is(tok::l_brace))
       return 0;
     unsigned NumStmts = 0;
     unsigned Length = 0;
     bool EndsWithComment = false;
     bool InPPDirective = I[0]->InPPDirective;
     const unsigned Level = I[0]->Level;
     for (; NumStmts < 3; ++NumStmts) {
       if (I + 1 + NumStmts == E)
         break;
       const AnnotatedLine *Line = I[1 + NumStmts];
       if (Line->InPPDirective != InPPDirective)
         break;
       if (Line->First->isOneOf(tok::kw_case, tok::kw_default, tok::r_brace))
         break;
       if (Line->First->isOneOf(tok::kw_if, tok::kw_for, tok::kw_switch,
                                tok::kw_while) ||
-          EndsWithComment)
+          EndsWithComment) {
         return 0;
+      }
       if (Line->First->is(tok::comment)) {
         if (Level != Line->Level)
           return 0;
         SmallVectorImpl<AnnotatedLine *>::const_iterator J = I + 2 + NumStmts;
         for (; J != E; ++J) {
           Line = *J;
           if (Line->InPPDirective != InPPDirective)
             break;
if (I[1]->Type == LT_PreprocessorDirective)
       return 0;
 
     AnnotatedLine &Line = **I;
 
     // Don't merge ObjC @ keywords and methods.
     // FIXME: If an option to allow short exception handling clauses on a single
     // line is added, change this to not return for @try and friends.
     if (Style.Language != FormatStyle::LK_Java &&
-        Line.First->isOneOf(tok::at, tok::minus, tok::plus))
+        Line.First->isOneOf(tok::at, tok::minus, tok::plus)) {
       return 0;
+    }
 
     // Check that the current line allows merging. This depends on whether we
     // are in a control flow statements as well as several style flags.
     if (Line.First->is(tok::kw_case) ||
-        (Line.First->Next && Line.First->Next->is(tok::kw_else)))
+        (Line.First->Next && Line.First->Next->is(tok::kw_else))) {
       return 0;
+    }
     // default: in switch statement
     if (Line.First->is(tok::kw_default)) {
       const FormatToken *Tok = Line.First->getNextNonComment();
       if (Tok && Tok->is(tok::colon))
         return 0;
     }
     if (Line.First->isOneOf(tok::kw_if, tok::kw_else, tok::kw_while, tok::kw_do,
                             tok::kw_try, tok::kw___try, tok::kw_catch,
                             tok::kw___finally, tok::kw_for, TT_ForEachMacro,
                             tok::r_brace, Keywords.kw___except)) {
       if (Style.AllowShortBlocksOnASingleLine == FormatStyle::SBS_Never)
         return 0;
       if (Style.AllowShortBlocksOnASingleLine == FormatStyle::SBS_Empty &&
-          !I[1]->First->is(tok::r_brace))
+          !I[1]->First->is(tok::r_brace)) {
         return 0;
+      }
       // Don't merge when we can't except the case when
       // the control statement block is empty
       if (!Style.AllowShortIfStatementsOnASingleLine &&
           Line.First->isOneOf(tok::kw_if, tok::kw_else) &&
           !Style.BraceWrapping.AfterControlStatement &&
-          !I[1]->First->is(tok::r_brace))
+          !I[1]->First->is(tok::r_brace)) {
         return 0;
+      }
       if (!Style.AllowShortIfStatementsOnASingleLine &&
           Line.First->isOneOf(tok::kw_if, tok::kw_else) &&
           Style.BraceWrapping.AfterControlStatement ==
               FormatStyle::BWACS_Always &&
-          I + 2 != E && !I[2]->First->is(tok::r_brace))
+          I + 2 != E && !I[2]->First->is(tok::r_brace)) {
         return 0;
+      }
       if (!Style.AllowShortLoopsOnASingleLine &&
           Line.First->isOneOf(tok::kw_while, tok::kw_do, tok::kw_for,
                               TT_ForEachMacro) &&
           !Style.BraceWrapping.AfterControlStatement &&
-          !I[1]->First->is(tok::r_brace))
+          !I[1]->First->is(tok::r_brace)) {
         return 0;
+      }
       if (!Style.AllowShortLoopsOnASingleLine &&
           Line.First->isOneOf(tok::kw_while, tok::kw_do, tok::kw_for,
                               TT_ForEachMacro) &&
           Style.BraceWrapping.AfterControlStatement ==
               FormatStyle::BWACS_Always &&
-          I + 2 != E && !I[2]->First->is(tok::r_brace))
+          I + 2 != E && !I[2]->First->is(tok::r_brace)) {
         return 0;
+      }
       // FIXME: Consider an option to allow short exception handling clauses on
       // a single line.
       // FIXME: This isn't covered by tests.
       // FIXME: For catch, __except, __finally the first token on the line
       // is '}', so this isn't correct here.
       if (Line.First->isOneOf(tok::kw_try, tok::kw___try, tok::kw_catch,
-                              Keywords.kw___except, tok::kw___finally))
+                              Keywords.kw___except, tok::kw___finally)) {
         return 0;
       }
+    }
 
     if (Line.Last->is(tok::l_brace)) {
       FormatToken *Tok = I[1]->First;
       auto ShouldMerge = [Tok]() {
         if (Tok->isNot(tok::r_brace) || Tok->MustBreakBefore)
           return false;
         const FormatToken *Next = Tok->getNextNonComment();
         return !Next || Next->is(tok::semi);
if (Line.Last->is(tok::l_brace)) {
         // Don't merge a trailing multi-line control statement block like:
         // } else if (foo &&
         //            bar)
         // { <-- current Line
         //   baz();
         // }
         if (Line.First == Line.Last && Line.First->isNot(TT_FunctionLBrace) &&
             Style.BraceWrapping.AfterControlStatement ==
-                FormatStyle::BWACS_MultiLine)
+                FormatStyle::BWACS_MultiLine) {
           return 0;
+        }
 
         return 2;
       }
     } else if (I[1]->First->is(tok::l_brace)) {
       if (I[1]->Last->is(TT_LineComment))
         return 0;
 
       // Check for Limit <= 2 to account for the " {".
private:
 
   /// Returns the modified column limit for \p I if it is inside a macro and
   /// needs a trailing '\'.
   unsigned
   limitConsideringMacros(SmallVectorImpl<AnnotatedLine *>::const_iterator I,
                          SmallVectorImpl<AnnotatedLine *>::const_iterator E,
                          unsigned Limit) {
     if (I[0]->InPPDirective && I + 1 != E &&
-        !I[1]->First->HasUnescapedNewline && !I[1]->First->is(tok::eof))
+        !I[1]->First->HasUnescapedNewline && !I[1]->First->is(tok::eof)) {
       return Limit < 2 ? 0 : Limit - 2;
+    }
     return Limit;
   }
 
   bool nextTwoLinesFitInto(SmallVectorImpl<AnnotatedLine *>::const_iterator I,
                            unsigned Limit) {
     if (I[1]->First->MustBreakBefore || I[2]->First->MustBreakBefore)
       return false;
     return 1 + I[1]->Last->TotalLength + 1 + I[2]->Last->TotalLength <= Limit;
protected:
   /// This enables us to keep the simple structure of the
   /// \c UnwrappedLineFormatter, where we only have two options for each token:
   /// break or don't break.
   bool formatChildren(LineState &State, bool NewLine, bool DryRun,
                       unsigned &Penalty) {
     const FormatToken *LBrace = State.NextToken->getPreviousNonComment();
     FormatToken &Previous = *State.NextToken->Previous;
     if (!LBrace || LBrace->isNot(tok::l_brace) || LBrace->isNot(BK_Block) ||
-        Previous.Children.size() == 0)
+        Previous.Children.size() == 0) {
       // The previous token does not open a block. Nothing to do. We don't
       // assert so that we can simply call this function for all tokens.
       return true;
+    }
 
     if (NewLine) {
       const ParenState &P = State.Stack.back();
 
       int AdditionalIndent =
           P.Indent - Previous.Children[0]->Level * Style.IndentWidth;
 
       if (Style.LambdaBodyIndentation == FormatStyle::LBI_OuterScope &&
           P.NestedBlockIndent == P.LastSpace) {
         if (State.NextToken->MatchingParen &&
-            State.NextToken->MatchingParen->is(TT_LambdaLBrace))
+            State.NextToken->MatchingParen->is(TT_LambdaLBrace)) {
           State.Stack.pop_back();
+        }
         if (LBrace->is(TT_LambdaLBrace))
           AdditionalIndent = 0;
       }
 
       Penalty +=
           BlockFormatter->format(Previous.Children, DryRun, AdditionalIndent,
                                  /*FixBadIndentation=*/true);
       return true;
bool formatChildren(LineState &State, bool NewLine, bool DryRun,
     const AnnotatedLine *Child = Previous.Children[0];
     // We can't put the closing "}" on a line with a trailing comment.
     if (Child->Last->isTrailingComment())
       return false;
 
     // If the child line exceeds the column limit, we wouldn't want to merge it.
     // We add +2 for the trailing " }".
     if (Style.ColumnLimit > 0 &&
-        Child->Last->TotalLength + State.Column + 2 > Style.ColumnLimit)
+        Child->Last->TotalLength + State.Column + 2 > Style.ColumnLimit) {
       return false;
+    }
 
     if (!DryRun) {
       Whitespaces->replaceWhitespace(
           *Child->First, /*Newlines=*/0, /*Spaces=*/1,
           /*StartOfTokenColumn=*/State.Column, /*IsAligned=*/false,
           State.Line->InPPDirective);
     }
     Penalty +=
while (!Queue.empty()) {
       }
       Queue.pop();
 
       // Cut off the analysis of certain solutions if the analysis gets too
       // complex. See description of IgnoreStackForComparison.
       if (Count > 50000)
         Node->State.IgnoreStackForComparison = true;
 
-      if (!Seen.insert(&Node->State).second)
+      if (!Seen.insert(&Node->State).second) {
         // State already examined with lower penalty.
         continue;
+      }
 
       FormatDecision LastFormat = Node->State.NextToken->getDecision();
       if (LastFormat == FD_Unformatted || LastFormat == FD_Continue)
         addNextStateToQueue(Penalty, Node, /*NewLine=*/false, &Count, &Queue);
       if (LastFormat == FD_Unformatted || LastFormat == FD_Break)
         addNextStateToQueue(Penalty, Node, /*NewLine=*/true, &Count, &Queue);
     }
 
void reconstructPath(LineState &State, StateNode *Best) {
     }
     for (const auto &Node : llvm::reverse(Path)) {
       unsigned Penalty = 0;
       formatChildren(State, Node->NewLine, /*DryRun=*/false, Penalty);
       Penalty += Indenter->addTokenToState(State, Node->NewLine, false);
 
       LLVM_DEBUG({
         printLineState(Node->Previous->State);
-        if (Node->NewLine)
+        if (Node->NewLine) {
           llvm::dbgs() << "Penalty for placing "
                        << Node->Previous->State.NextToken->Tok.getName()
                        << " on a new line: " << Penalty << "\n";
+        }
       });
     }
   }
 
   llvm::SpecificBumpPtrAllocator<StateNode> Allocator;
 };
 
 } // anonymous namespace
if (ShouldFormat && TheLine.Type != LT_Invalid) {
       NextLine = Joiner.getNextMergedLine(DryRun, IndentTracker);
       unsigned ColumnLimit = getColumnLimit(TheLine.InPPDirective, NextLine);
       bool FitsIntoOneLine =
           TheLine.Last->TotalLength + Indent <= ColumnLimit ||
           (TheLine.Type == LT_ImportStatement &&
            (!Style.isJavaScript() || !Style.JavaScriptWrapImports)) ||
           (Style.isCSharp() &&
            TheLine.InPPDirective); // don't split #regions in C#
-      if (Style.ColumnLimit == 0)
+      if (Style.ColumnLimit == 0) {
         NoColumnLimitLineFormatter(Indenter, Whitespaces, Style, this)
             .formatLine(TheLine, NextStartColumn + Indent,
                         FirstLine ? FirstStartColumn : 0, DryRun);
-      else if (FitsIntoOneLine)
+      } else if (FitsIntoOneLine) {
         Penalty += NoLineBreakFormatter(Indenter, Whitespaces, Style, this)
                        .formatLine(TheLine, NextStartColumn + Indent,
                                    FirstLine ? FirstStartColumn : 0, DryRun);
-      else
+      } else {
         Penalty += OptimizingLineFormatter(Indenter, Whitespaces, Style, this)
                        .formatLine(TheLine, NextStartColumn + Indent,
                                    FirstLine ? FirstStartColumn : 0, DryRun);
+      }
       RangeMinLevel = std::min(RangeMinLevel, TheLine.Level);
     } else {
       // If no token in the current line is affected, we still need to format
       // affected children.
-      if (TheLine.ChildrenAffected)
+      if (TheLine.ChildrenAffected) {
         for (const FormatToken *Tok = TheLine.First; Tok; Tok = Tok->Next)
           if (!Tok->Children.empty())
             format(Tok->Children, DryRun);
+      }
 
       // Adapt following lines on the current indent level to the same level
       // unless the current \c AnnotatedLine is not at the beginning of a line.
       bool StartsNewLine =
           TheLine.First->NewlinesBefore > 0 || TheLine.First->IsFirst;
       if (StartsNewLine)
         IndentTracker.adjustToUnmodifiedLine(TheLine);
       if (!DryRun) {
         bool ReformatLeadingWhitespace =
             StartsNewLine && ((PreviousLine && PreviousLine->Affected) ||
                               TheLine.LeadingEmptyLinesAffected);
         // Format the first token.
-        if (ReformatLeadingWhitespace)
+        if (ReformatLeadingWhitespace) {
           formatFirstToken(TheLine, PreviousLine, PrevPrevLine, Lines,
                            TheLine.First->OriginalColumn,
                            TheLine.First->OriginalColumn);
-        else
+        } else {
           Whitespaces->addUntouchableToken(*TheLine.First,
                                            TheLine.InPPDirective);
+        }
 
         // Notify the WhitespaceManager about the unchanged whitespace.
         for (FormatToken *Tok = TheLine.First->Next; Tok; Tok = Tok->Next)
           Whitespaces->addUntouchableToken(*Tok, TheLine.InPPDirective);
       }
       NextLine = Joiner.getNextMergedLine(DryRun, IndentTracker);
       RangeMinLevel = UINT_MAX;
     }
void UnwrappedLineFormatter::formatFirstToken(
   }
   unsigned Newlines =
       std::min(RootToken.NewlinesBefore, Style.MaxEmptyLinesToKeep + 1);
   // Remove empty lines before "}" where applicable.
   if (RootToken.is(tok::r_brace) &&
       (!RootToken.Next ||
        (RootToken.Next->is(tok::semi) && !RootToken.Next->Next)) &&
       // Do not remove empty lines before namespace closing "}".
-      !getNamespaceToken(&Line, Lines))
+      !getNamespaceToken(&Line, Lines)) {
     Newlines = std::min(Newlines, 1u);
+  }
   // Remove empty lines at the start of nested blocks (lambdas/arrow functions)
   if (PreviousLine == nullptr && Line.Level > 0)
     Newlines = std::min(Newlines, 1u);
   if (Newlines == 0 && !RootToken.IsFirst)
     Newlines = 1;
   if (RootToken.IsFirst && !RootToken.HasUnescapedNewline)
     Newlines = 0;
 
   // Remove empty lines after "{".
   if (!Style.KeepEmptyLinesAtTheStartOfBlocks && PreviousLine &&
       PreviousLine->Last->is(tok::l_brace) &&
       !PreviousLine->startsWithNamespace() &&
       !(PrevPrevLine && PrevPrevLine->startsWithNamespace() &&
         PreviousLine->startsWith(tok::l_brace)) &&
-      !startsExternCBlock(*PreviousLine))
+      !startsExternCBlock(*PreviousLine)) {
     Newlines = 1;
+  }
 
   // Insert or remove empty line before access specifiers.
   if (PreviousLine && RootToken.isAccessSpecifier()) {
     switch (Style.EmptyLineBeforeAccessModifier) {
     case FormatStyle::ELBAMS_Never:
       if (Newlines > 1)
         Newlines = 1;
       break;
void UnwrappedLineFormatter::formatFirstToken(
   if (Newlines)
     Indent = NewlineIndent;
 
   // Preprocessor directives get indented before the hash only if specified. In
   // Javascript import statements are indented like normal statements.
   if (!Style.isJavaScript() &&
       Style.IndentPPDirectives != FormatStyle::PPDIS_BeforeHash &&
       (Line.Type == LT_PreprocessorDirective ||
-       Line.Type == LT_ImportStatement))
+       Line.Type == LT_ImportStatement)) {
     Indent = 0;
+  }
 
   Whitespaces->replaceWhitespace(RootToken, Newlines, Indent, Indent,
                                  /*IsAligned=*/false,
                                  Line.InPPDirective &&
                                      !RootToken.HasUnescapedNewline);
 }
 
 unsigned

clang/lib/Format/UnwrappedLineParser.cpp

do {
     Tokens = &TokenSource;
     TokenSource.reset();
 
     readToken();
     parseFile();
 
     // If we found an include guard then all preprocessor directives (other than
     // the guard) are over-indented by one.
-    if (IncludeGuard == IG_Found)
+    if (IncludeGuard == IG_Found) {
       for (auto &Line : Lines)
         if (Line.InPPDirective && Line.Level > 0)
           --Line.Level;
+    }
 
     // Create line with eof token.
     pushToken(FormatTok);
     addUnwrappedLine();
 
     for (const UnwrappedLine &Line : Lines)
       Callback.consumeUnwrappedLine(Line);
 
void UnwrappedLineParser::parseFile() {
   // braced list, which does not necessarily have natural line separators such
   // as a semicolon. Comments after the last entry that have been determined to
   // not belong to that line, as in:
   //   key: value
   //   // endfile comment
   // do not have a chance to be put on a line of their own until this point.
   // Here we add this newline before end-of-file comments.
   if (Style.Language == FormatStyle::LK_TextProto &&
-      !CommentsBeforeNextToken.empty())
+      !CommentsBeforeNextToken.empty()) {
     addUnwrappedLine();
+  }
   flushComments(true);
   addUnwrappedLine();
 }
 
 void UnwrappedLineParser::parseCSharpGenericTypeConstraint() {
   do {
     switch (FormatTok->Tok.getKind()) {
     case tok::l_brace:
do {
     };
 
     switch (kind) {
     case tok::comment:
       nextToken();
       addUnwrappedLine();
       break;
     case tok::l_brace:
-      if (NextLBracesType != TT_Unknown)
+      if (NextLBracesType != TT_Unknown) {
         FormatTok->setFinalizedType(NextLBracesType);
-      else if (FormatTok->Previous &&
+      } else if (FormatTok->Previous &&
                  FormatTok->Previous->ClosesRequiresClause) {
         // We need the 'default' case here to correctly parse a function
         // l_brace.
         ParseDefault();
         continue;
       }
       if (CanContainBracedList && !FormatTok->is(TT_MacroBlockBegin) &&
-          tryToParseBracedList())
+          tryToParseBracedList()) {
         continue;
+      }
       parseBlock(/*MustBeDeclaration=*/false, /*AddLevels=*/1u,
                  /*MunchSemi=*/true, /*KeepBraces=*/true,
                  /*UnindentWhitesmithsBraces=*/false, CanContainBracedList,
                  NextLBracesType);
       ++StatementCount;
       assert(StatementCount > 0 && "StatementCount overflow!");
       addUnwrappedLine();
       break;
     case tok::r_brace:
       if (OpeningBrace) {
         if (!Style.RemoveBracesLLVM ||
-            !OpeningBrace->isOneOf(TT_ControlStatementLBrace, TT_ElseLBrace))
+            !OpeningBrace->isOneOf(TT_ControlStatementLBrace, TT_ElseLBrace)) {
           return false;
+        }
         if (FormatTok->isNot(tok::r_brace) || StatementCount != 1 || HasLabel ||
             IsPrecededByCommentOrPPDirective ||
-            precededByCommentOrPPDirective())
+            precededByCommentOrPPDirective()) {
           return false;
+        }
         const FormatToken *Next = Tokens->peekNextToken();
         return Next->isNot(tok::comment) || Next->NewlinesBefore > 0;
       }
       nextToken();
       addUnwrappedLine();
       break;
     case tok::kw_default: {
       unsigned StoredPosition = Tokens->getPosition();
do {
     }
     case tok::kw_case:
       if (Style.isJavaScript() && Line->MustBeDeclaration) {
         // A 'case: string' style field declaration.
         parseStructuralElement();
         break;
       }
       if (!SwitchLabelEncountered &&
-          (Style.IndentCaseLabels || (Line->InPPDirective && Line->Level == 1)))
+          (Style.IndentCaseLabels ||
+           (Line->InPPDirective && Line->Level == 1))) {
         ++Line->Level;
+      }
       SwitchLabelEncountered = true;
       parseStructuralElement();
       break;
     case tok::l_square:
       if (Style.isCSharp()) {
         nextToken();
         parseCSharpAttribute();
         break;
do {
     FormatToken *NextTok;
     do {
       NextTok = Tokens->getNextToken();
     } while (NextTok->is(tok::comment));
 
     switch (Tok->Tok.getKind()) {
     case tok::l_brace:
       if (Style.isJavaScript() && PrevTok) {
-        if (PrevTok->isOneOf(tok::colon, tok::less))
+        if (PrevTok->isOneOf(tok::colon, tok::less)) {
           // A ':' indicates this code is in a type, or a braced list
           // following a label in an object literal ({a: {b: 1}}).
           // A '<' could be an object used in a comparison, but that is nonsense
           // code (can never return true), so more likely it is a generic type
           // argument (`X<{a: string; b: number}>`).
           // The code below could be confused by semicolons between the
           // individual members in a type member list, which would normally
           // trigger BK_Block. In both cases, this must be parsed as an inline
           // braced init.
           Tok->setBlockKind(BK_BracedInit);
-        else if (PrevTok->is(tok::r_paren))
+        } else if (PrevTok->is(tok::r_paren)) {
           // `) { }` can only occur in function or method declarations in JS.
           Tok->setBlockKind(BK_Block);
+        }
       } else {
         Tok->setBlockKind(BK_Unknown);
       }
       LBraceStack.push_back(Tok);
       break;
     case tok::r_brace:
       if (LBraceStack.empty())
         break;

 }
 
 void UnwrappedLineParser::conditionalCompilationCondition(bool Unreachable) {
   size_t Line = CurrentLines->size();
   if (CurrentLines == &PreprocessorDirectives)
     Line += Lines.size();
 
   if (Unreachable ||
-      (!PPStack.empty() && PPStack.back().Kind == PP_Unreachable))
+      (!PPStack.empty() && PPStack.back().Kind == PP_Unreachable)) {
     PPStack.push_back({PP_Unreachable, Line});
-  else
+  } else {
     PPStack.push_back({PP_Conditional, Line});
   }
+}
 
 void UnwrappedLineParser::conditionalCompilationStart(bool Unreachable) {
   ++PPBranchLevel;
   assert(PPBranchLevel >= 0 && PPBranchLevel <= (int)PPLevelBranchIndex.size());
   if (PPBranchLevel == (int)PPLevelBranchIndex.size()) {
     PPLevelBranchIndex.push_back(0);
     PPLevelBranchCount.push_back(0);
   }
if (!IfDef && (FormatTok->is(tok::kw_false) || FormatTok->TokenText == "0"))
     Unreachable = true;
   if (IfDef && !IfNDef && FormatTok->TokenText == "SWIG")
     Unreachable = true;
   conditionalCompilationStart(Unreachable);
   FormatToken *IfCondition = FormatTok;
   // If there's a #ifndef on the first line, and the only lines before it are
   // comments, it could be an include guard.
   bool MaybeIncludeGuard = IfNDef;
-  if (IncludeGuard == IG_Inited && MaybeIncludeGuard)
+  if (IncludeGuard == IG_Inited && MaybeIncludeGuard) {
     for (auto &Line : Lines) {
       if (!Line.Tokens.front().Tok->is(tok::comment)) {
         MaybeIncludeGuard = false;
         IncludeGuard = IG_Rejected;
         break;
       }
     }
+  }
   --PPBranchLevel;
   parsePPUnknown();
   ++PPBranchLevel;
   if (IncludeGuard == IG_Inited && MaybeIncludeGuard) {
     IncludeGuard = IG_IfNdefed;
     IncludeGuardToken = IfCondition;
   }
 }

 void UnwrappedLineParser::parsePPElIf() { parsePPElse(); }
 
 void UnwrappedLineParser::parsePPEndIf() {
   conditionalCompilationEnd();
   parsePPUnknown();
   // If the #endif of a potential include guard is the last thing in the file,
   // then we found an include guard.
   if (IncludeGuard == IG_Defined && PPBranchLevel == -1 && Tokens->isEOF() &&
-      Style.IndentPPDirectives != FormatStyle::PPDIS_None)
+      Style.IndentPPDirectives != FormatStyle::PPDIS_None) {
     IncludeGuard = IG_Found;
   }
+}
 
 void UnwrappedLineParser::parsePPDefine() {
   nextToken();
 
   if (!FormatTok->Tok.getIdentifierInfo()) {
     IncludeGuard = IG_Rejected;
     IncludeGuardToken = nullptr;
     parsePPUnknown();
void UnwrappedLineParser::parsePPDefine() {
   // identifiers. Setting the kind to identifier is not enough, because we need
   // to treat additional keywords like __except as well, which are already
   // identifiers. Setting the identifier info to null interferes with include
   // guard processing above, and changes preprocessing nesting.
   FormatTok->Tok.setKind(tok::identifier);
   FormatTok->Tok.setIdentifierInfo(Keywords.kw_internal_ident_after_define);
   nextToken();
   if (FormatTok->Tok.getKind() == tok::l_paren &&
-      !FormatTok->hasWhitespaceBefore())
+      !FormatTok->hasWhitespaceBefore()) {
     parseParens();
+  }
   if (Style.IndentPPDirectives != FormatStyle::PPDIS_None)
     Line->Level += PPBranchLevel + 1;
   addUnwrappedLine();
   ++Line->Level;
 
   // Errors during a preprocessor directive can only affect the layout of the
   // preprocessor directive, and thus we ignore them. An alternative approach
   // would be to use the same approach we use on the file level (no
static bool isC78ParameterDecl(const FormatToken *Tok, const FormatToken *Next,
   if (FuncName->isNot(tok::identifier))
     return false;
 
   const FormatToken *Prev = FuncName->Previous;
   if (!Prev || (Prev->isNot(tok::star) && !isC78Type(*Prev)))
     return false;
 
   if (!isC78Type(*Tok) &&
-      !Tok->isOneOf(tok::kw_register, tok::kw_struct, tok::kw_union))
+      !Tok->isOneOf(tok::kw_register, tok::kw_struct, tok::kw_union)) {
     return false;
+  }
 
   if (Next->isNot(tok::star) && !Next->Tok.getIdentifierInfo())
     return false;
 
   Tok = Tok->Previous;
   if (!Tok || Tok->isNot(tok::r_paren))
     return false;
 
while (!eof()) {
     }
     // Handle import <foo/bar.h> as we would an include statement.
     else if (FormatTok->is(tok::less)) {
       nextToken();
       while (!FormatTok->isOneOf(tok::semi, tok::greater, tok::eof)) {
         // Mark tokens up to the trailing line comments as implicit string
         // literals.
         if (FormatTok->isNot(tok::comment) &&
-            !FormatTok->TokenText.startswith("//"))
+            !FormatTok->TokenText.startswith("//")) {
           FormatTok->setFinalizedType(TT_ImplicitStringLiteral);
+        }
         nextToken();
       }
     }
     if (FormatTok->is(tok::semi)) {
       nextToken();
       break;
     }
     nextToken();
void UnwrappedLineParser::readTokenWithJavaScriptASI() {
   if (Next->is(tok::exclaim) && PreviousMustBeValue)
     return addUnwrappedLine();
   bool NextMustBeValue = mustBeJSIdentOrValue(Keywords, Next);
   bool NextEndsTemplateExpr =
       Next->is(TT_TemplateString) && Next->TokenText.startswith("}");
   if (NextMustBeValue && !NextEndsTemplateExpr && !PreviousStartsTemplateExpr &&
       (PreviousMustBeValue ||
        Previous->isOneOf(tok::r_square, tok::r_paren, tok::plusplus,
-                         tok::minusminus)))
+                         tok::minusminus))) {
     return addUnwrappedLine();
+  }
   if ((PreviousMustBeValue || Previous->is(tok::r_paren)) &&
-      isJSDeclOrStmt(Keywords, Next))
+      isJSDeclOrStmt(Keywords, Next)) {
     return addUnwrappedLine();
   }
+}
 
 void UnwrappedLineParser::parseStructuralElement(IfStmtKind *IfKind,
                                                  bool IsTopLevel,
                                                  TokenType NextLBracesType,
                                                  bool *HasLabel) {
   if (Style.Language == FormatStyle::LK_TableGen &&
       FormatTok->is(tok::pp_include)) {
     nextToken();
case tok::kw_asm:
     break;
   case tok::kw_namespace:
     parseNamespace();
     return;
   case tok::kw_public:
   case tok::kw_protected:
   case tok::kw_private:
     if (Style.Language == FormatStyle::LK_Java || Style.isJavaScript() ||
-        Style.isCSharp())
+        Style.isCSharp()) {
       nextToken();
-    else
+    } else {
       parseAccessSpecifier();
+    }
     return;
   case tok::kw_if:
-    if (Style.isJavaScript() && Line->MustBeDeclaration)
+    if (Style.isJavaScript() && Line->MustBeDeclaration) {
       // field/method declaration.
       break;
+    }
     parseIfThenElse(IfKind);
     return;
   case tok::kw_for:
   case tok::kw_while:
-    if (Style.isJavaScript() && Line->MustBeDeclaration)
+    if (Style.isJavaScript() && Line->MustBeDeclaration) {
       // field/method declaration.
       break;
+    }
     parseForOrWhileLoop();
     return;
   case tok::kw_do:
-    if (Style.isJavaScript() && Line->MustBeDeclaration)
+    if (Style.isJavaScript() && Line->MustBeDeclaration) {
       // field/method declaration.
       break;
+    }
     parseDoWhile();
     return;
   case tok::kw_switch:
-    if (Style.isJavaScript() && Line->MustBeDeclaration)
+    if (Style.isJavaScript() && Line->MustBeDeclaration) {
       // 'switch: string' field declaration.
       break;
+    }
     parseSwitch();
     return;
   case tok::kw_default:
-    if (Style.isJavaScript() && Line->MustBeDeclaration)
+    if (Style.isJavaScript() && Line->MustBeDeclaration) {
       // 'default: string' field declaration.
       break;
+    }
     nextToken();
     if (FormatTok->is(tok::colon)) {
       parseLabel();
       return;
     }
     // e.g. "default void f() {}" in a Java interface.
     break;
   case tok::kw_case:
     if (Style.isJavaScript() && Line->MustBeDeclaration) {
       // 'case: string' field declaration.
       nextToken();
       break;
     }
     parseCaseLabel();
     return;
   case tok::kw_try:
   case tok::kw___try:
-    if (Style.isJavaScript() && Line->MustBeDeclaration)
+    if (Style.isJavaScript() && Line->MustBeDeclaration) {
       // field/method declaration.
       break;
+    }
     parseTryCatch();
     return;
   case tok::kw_extern:
     nextToken();
     if (FormatTok->is(tok::string_literal)) {
       nextToken();
       if (FormatTok->is(tok::l_brace)) {
         if (Style.BraceWrapping.AfterExternBlock)
case tok::at:
       case tok::objc_required:
         nextToken();
         addUnwrappedLine();
         return;
       case tok::objc_autoreleasepool:
         nextToken();
         if (FormatTok->is(tok::l_brace)) {
           if (Style.BraceWrapping.AfterControlStatement ==
-              FormatStyle::BWACS_Always)
+              FormatStyle::BWACS_Always) {
             addUnwrappedLine();
+          }
           parseBlock();
         }
         addUnwrappedLine();
         return;
       case tok::objc_synchronized:
         nextToken();
-        if (FormatTok->is(tok::l_paren))
+        if (FormatTok->is(tok::l_paren)) {
           // Skip synchronization object
           parseParens();
+        }
         if (FormatTok->is(tok::l_brace)) {
           if (Style.BraceWrapping.AfterControlStatement ==
-              FormatStyle::BWACS_Always)
+              FormatStyle::BWACS_Always) {
             addUnwrappedLine();
+          }
           parseBlock();
         }
         addUnwrappedLine();
         return;
       case tok::objc_try:
         // This branch isn't strictly necessary (the kw_try case below would
         // do this too after the tok::at is parsed above).  But be explicit.
         parseTryCatch();
case tok::kw_enum:
         return;
       }
       break;
     case tok::kw_typedef:
       nextToken();
       if (FormatTok->isOneOf(Keywords.kw_NS_ENUM, Keywords.kw_NS_OPTIONS,
                              Keywords.kw_CF_ENUM, Keywords.kw_CF_OPTIONS,
                              Keywords.kw_CF_CLOSED_ENUM,
-                             Keywords.kw_NS_CLOSED_ENUM))
+                             Keywords.kw_NS_CLOSED_ENUM)) {
         parseEnum();
+      }
       break;
     case tok::kw_struct:
     case tok::kw_union:
     case tok::kw_class:
       if (parseStructLike())
         return;
       break;
     case tok::period:
       nextToken();
       // In Java, classes have an implicit static member "class".
       if (Style.Language == FormatStyle::LK_Java && FormatTok &&
-          FormatTok->is(tok::kw_class))
+          FormatTok->is(tok::kw_class)) {
         nextToken();
+      }
       if (Style.isJavaScript() && FormatTok &&
-          FormatTok->Tok.getIdentifierInfo())
+          FormatTok->Tok.getIdentifierInfo()) {
         // JavaScript only has pseudo keywords, all keywords are allowed to
         // appear in "IdentifierName" positions. See http://es5.github.io/#x7.6
         nextToken();
+      }
       break;
     case tok::semi:
       nextToken();
       addUnwrappedLine();
       return;
     case tok::r_brace:
       addUnwrappedLine();
       return;
do {
     case tok::kw_operator:
       nextToken();
       if (FormatTok->isBinaryOperator())
         nextToken();
       break;
     case tok::caret:
       nextToken();
       if (FormatTok->Tok.isAnyIdentifier() ||
-          FormatTok->isSimpleTypeSpecifier())
+          FormatTok->isSimpleTypeSpecifier()) {
         nextToken();
+      }
       if (FormatTok->is(tok::l_paren))
         parseParens();
       if (FormatTok->is(tok::l_brace))
         parseChildBlock();
       break;
     case tok::l_brace:
       if (NextLBracesType != TT_Unknown)
         FormatTok->setFinalizedType(NextLBracesType);
       if (!tryToParsePropertyAccessor() && !tryToParseBracedList()) {
         // A block outside of parentheses must be the last part of a
         // structural element.
         // FIXME: Figure out cases where this is not true, and add projections
         // for them (the one we know is missing are lambdas).
         if (Style.Language == FormatStyle::LK_Java &&
             Line->Tokens.front().Tok->is(Keywords.kw_synchronized)) {
           // If necessary, we could set the type to something different than
           // TT_FunctionLBrace.
           if (Style.BraceWrapping.AfterControlStatement ==
-              FormatStyle::BWACS_Always)
+              FormatStyle::BWACS_Always) {
             addUnwrappedLine();
+          }
         } else if (Style.BraceWrapping.AfterFunction) {
           addUnwrappedLine();
         }
         if (!Line->InPPDirective)
           FormatTok->setFinalizedType(TT_FunctionLBrace);
         parseBlock();
         addUnwrappedLine();
         return;
bool UnwrappedLineParser::parseBracedList(bool ContinueOnSemicolons,
                                           bool IsEnum,
                                           tok::TokenKind ClosingBraceKind) {
   bool HasError = false;
 
   // FIXME: Once we have an expression parser in the UnwrappedLineParser,
   // replace this by using parseAssignmentExpression() inside.
   do {
     if (Style.isCSharp() && FormatTok->is(TT_FatArrow) &&
-        tryToParseChildBlock())
+        tryToParseChildBlock()) {
       continue;
+    }
     if (Style.isJavaScript()) {
       if (FormatTok->is(Keywords.kw_function) ||
           FormatTok->startsSequence(Keywords.kw_async, Keywords.kw_function)) {
         tryToParseJSFunction();
         continue;
       }
       if (FormatTok->is(tok::l_brace)) {
         // Could be a method inside of a braced list `{a() { return 1; }}`.
case tok::kw_class:
       if (Style.isJavaScript())
         parseRecord(/*ParseAsExpr=*/true);
       else
         nextToken();
       break;
     case tok::identifier:
       if (Style.isJavaScript() &&
           (FormatTok->is(Keywords.kw_function) ||
-           FormatTok->startsSequence(Keywords.kw_async, Keywords.kw_function)))
+           FormatTok->startsSequence(Keywords.kw_async,
+                                     Keywords.kw_function))) {
         tryToParseJSFunction();
-      else
+      } else {
         nextToken();
+      }
       break;
     case tok::kw_requires: {
       auto RequiresToken = FormatTok;
       nextToken();
       parseRequiresExpression(RequiresToken);
       break;
     }
     case tok::ampamp:
if (FormatTok->is(tok::kw_else)) {
     }
     nextToken();
     handleAttributes();
     if (FormatTok->is(tok::l_brace)) {
       FormatTok->setFinalizedType(TT_ElseLBrace);
       ElseLeftBrace = FormatTok;
       CompoundStatementIndenter Indenter(this, Style, Line->Level);
       if (parseBlock(/*MustBeDeclaration=*/false, /*AddLevels=*/1u,
-                     /*MunchSemi=*/true, KeepElseBraces) == IfStmtKind::IfOnly)
+                     /*MunchSemi=*/true,
+                     KeepElseBraces) == IfStmtKind::IfOnly) {
         Kind = IfStmtKind::IfElseIf;
+      }
       addUnwrappedLine();
     } else if (FormatTok->is(tok::kw_if)) {
       const FormatToken *Previous = Tokens->getPreviousToken();
       assert(Previous);
       const bool IsPrecededByComment = Previous->is(tok::comment);
       if (IsPrecededByComment) {
         addUnwrappedLine();
         ++Line->Level;
void UnwrappedLineParser::parseTryCatch() {
   while (true) {
     if (FormatTok->is(tok::at))
       nextToken();
     if (!(FormatTok->isOneOf(tok::kw_catch, Keywords.kw___except,
                              tok::kw___finally) ||
           ((Style.Language == FormatStyle::LK_Java || Style.isJavaScript()) &&
            FormatTok->is(Keywords.kw_finally)) ||
           (FormatTok->isObjCAtKeyword(tok::objc_catch) ||
-           FormatTok->isObjCAtKeyword(tok::objc_finally))))
+           FormatTok->isObjCAtKeyword(tok::objc_finally)))) {
       break;
+    }
     nextToken();
     while (FormatTok->isNot(tok::l_brace)) {
       if (FormatTok->is(tok::l_paren)) {
         parseParens();
         continue;
       }
       if (FormatTok->isOneOf(tok::semi, tok::r_brace, tok::eof)) {
         if (Style.RemoveBracesLLVM)
void UnwrappedLineParser::parseNamespace() {
 
   const FormatToken &InitialToken = *FormatTok;
   nextToken();
   if (InitialToken.is(TT_NamespaceMacro)) {
     parseParens();
   } else {
     while (FormatTok->isOneOf(tok::identifier, tok::coloncolon, tok::kw_inline,
                               tok::l_square, tok::period, tok::l_paren) ||
-           (Style.isCSharp() && FormatTok->is(tok::kw_union)))
+           (Style.isCSharp() && FormatTok->is(tok::kw_union))) {
       if (FormatTok->is(tok::l_square))
         parseSquare();
       else if (FormatTok->is(tok::l_paren))
         parseParens();
       else
         nextToken();
     }
+  }
   if (FormatTok->is(tok::l_brace)) {
     if (ShouldBreakBeforeBrace(Style, InitialToken))
       addUnwrappedLine();
 
     unsigned AddLevels =
         Style.NamespaceIndentation == FormatStyle::NI_All ||
                 (Style.NamespaceIndentation == FormatStyle::NI_Inner &&
                  DeclarationScopeStack.size() > 1)
void UnwrappedLineParser::parseNamespace() {
   }
   // FIXME: Add error handling.
 }
 
 void UnwrappedLineParser::parseNew() {
   assert(FormatTok->is(tok::kw_new) && "'new' expected");
   nextToken();
 
   if (Style.isCSharp()) {
     do {
       if (FormatTok->is(tok::l_brace))
         parseBracedList();
 
       if (FormatTok->isOneOf(tok::semi, tok::comma))
         return;
 
       nextToken();
CompoundStatementIndenter Indenter(this, Line->Level,
                                        Style.BraceWrapping.AfterCaseLabel,
                                        Style.BraceWrapping.IndentBraces);
     parseBlock();
     if (FormatTok->is(tok::kw_break)) {
       if (Style.BraceWrapping.AfterControlStatement ==
           FormatStyle::BWACS_Always) {
         addUnwrappedLine();
         if (!Style.IndentCaseBlocks &&
-            Style.BreakBeforeBraces == FormatStyle::BS_Whitesmiths)
+            Style.BreakBeforeBraces == FormatStyle::BS_Whitesmiths) {
           ++Line->Level;
         }
+      }
       parseStructuralElement();
     }
     addUnwrappedLine();
   } else {
     if (FormatTok->is(tok::semi))
       nextToken();
     addUnwrappedLine();
   }
if (Style.Language == FormatStyle::LK_Java) {
     return true;
   }
   if (Style.Language == FormatStyle::LK_Proto) {
     parseBlock(/*MustBeDeclaration=*/true);
     return true;
   }
 
   if (!Style.AllowShortEnumsOnASingleLine &&
-      ShouldBreakBeforeBrace(Style, InitialToken))
+      ShouldBreakBeforeBrace(Style, InitialToken)) {
     addUnwrappedLine();
+  }
   // Parse enum body.
   nextToken();
   if (!Style.AllowShortEnumsOnASingleLine) {
     addUnwrappedLine();
     Line->Level += 1;
   }
   bool HasError = !parseBracedList(/*ContinueOnSemicolons=*/true,
                                    /*IsEnum=*/true);

 }
 
 void UnwrappedLineParser::parseObjCProtocolList() {
   assert(FormatTok->is(tok::less) && "'<' expected.");
   do {
     nextToken();
     // Early exit in case someone forgot a close angle.
     if (FormatTok->isOneOf(tok::semi, tok::l_brace) ||
-        FormatTok->isObjCAtKeyword(tok::objc_end))
+        FormatTok->isObjCAtKeyword(tok::objc_end)) {
       return;
+    }
   } while (!eof() && FormatTok->isNot(tok::greater));
   nextToken(); // Skip '>'.
 }
 
 void UnwrappedLineParser::parseObjCUntilAtEnd() {
   do {
     if (FormatTok->isObjCAtKeyword(tok::objc_end)) {
       nextToken();
void UnwrappedLineParser::parseObjCInterfaceOrImplementation() {
   if (FormatTok->is(tok::less))
     parseObjCLightweightGenerics();
   if (FormatTok->is(tok::colon)) {
     nextToken();
     nextToken(); // base class name
     // The base class can also have lightweight generics applied to it.
     if (FormatTok->is(tok::less))
       parseObjCLightweightGenerics();
-  } else if (FormatTok->is(tok::l_paren))
+  } else if (FormatTok->is(tok::l_paren)) {
     // Skip category, if present.
     parseParens();
+  }
 
   if (FormatTok->is(tok::less))
     parseObjCProtocolList();
 
   if (FormatTok->is(tok::l_brace)) {
     if (Style.BraceWrapping.AfterObjCDeclaration)
       addUnwrappedLine();
     parseBlock(/*MustBeDeclaration=*/true);
void UnwrappedLineParser::parseObjCLightweightGenerics() {
   //     NSObject <NSCopying, NSSecureCoding>
   //
   // so we need to count how many open angles we have left.
   unsigned NumOpenAngles = 1;
   do {
     nextToken();
     // Early exit in case someone forgot a close angle.
     if (FormatTok->isOneOf(tok::semi, tok::l_brace) ||
-        FormatTok->isObjCAtKeyword(tok::objc_end))
+        FormatTok->isObjCAtKeyword(tok::objc_end)) {
       break;
-    if (FormatTok->is(tok::less))
+    }
+    if (FormatTok->is(tok::less)) {
       ++NumOpenAngles;
-    else if (FormatTok->is(tok::greater)) {
+    } else if (FormatTok->is(tok::greater)) {
       assert(NumOpenAngles > 0 && "'>' makes NumOpenAngles negative");
       --NumOpenAngles;
     }
   } while (!eof() && NumOpenAngles != 0);
   nextToken(); // Skip '>'.
 }
 
 // Returns true for the declaration/definition form of @protocol,
 // false for the expression form.
 bool UnwrappedLineParser::parseObjCProtocol() {
   assert(FormatTok->Tok.getObjCKeywordID() == tok::objc_protocol);
   nextToken();
 
-  if (FormatTok->is(tok::l_paren))
+  if (FormatTok->is(tok::l_paren)) {
     // The expression form of @protocol, e.g. "Protocol* p = @protocol(foo);".
     return false;
+  }
 
   // The definition/declaration form,
   // @protocol Foo
   // - (int)someMethod;
   // @end
 
   nextToken(); // protocol name
 
if (FormatTok->is(Keywords.kw_function)) {
     return;
   }
 
   // For imports, `export *`, `export {...}`, consume the rest of the line up
   // to the terminating `;`. For everything else, just return and continue
   // parsing the structural element, i.e. the declaration or expression for
   // `export default`.
   if (!IsImport && !FormatTok->isOneOf(tok::l_brace, tok::star) &&
-      !FormatTok->isStringLiteral())
+      !FormatTok->isStringLiteral()) {
     return;
+  }
 
   while (!eof()) {
     if (FormatTok->is(tok::semi))
       return;
     if (Line->Tokens.empty()) {
       // Common issue: Automatic Semicolon Insertion wrapped the line, so the
       // import statement should terminate.
       return;

 continuesLineCommentSection(const FormatToken &FormatTok,
                             const UnwrappedLine &Line,
                             const llvm::Regex &CommentPragmasRegex) {
   if (Line.Tokens.empty())
     return false;
 
   StringRef IndentContent = FormatTok.TokenText;
   if (FormatTok.TokenText.startswith("//") ||
-      FormatTok.TokenText.startswith("/*"))
+      FormatTok.TokenText.startswith("/*")) {
     IndentContent = FormatTok.TokenText.substr(2);
+  }
   if (CommentPragmasRegex.match(IndentContent))
     return false;
 
   // If Line starts with a line comment, then FormatTok continues the comment
   // section if its original column is greater or equal to the original start
   // column of the line.
   //
   // Define the min column token of a line as follows: if a line ends in '{' or
for (unsigned i = 0, e = Comments.size(); i < e; ++i) {
     FormatToken *FormatTok = Comments[i];
     if (HasTrailAlignedWithNextToken && i == StartOfTrailAlignedWithNextToken) {
       FormatTok->ContinuesLineCommentSection = false;
     } else {
       FormatTok->ContinuesLineCommentSection =
           continuesLineCommentSection(*FormatTok, *Line, CommentPragmasRegex);
     }
     if (!FormatTok->ContinuesLineCommentSection &&
-        (isOnNewLine(*FormatTok) || FormatTok->IsFirst))
+        (isOnNewLine(*FormatTok) || FormatTok->IsFirst)) {
       ShouldPushCommentsInCurrentLine = false;
+    }
     if (ShouldPushCommentsInCurrentLine)
       pushToken(FormatTok);
     else
       CommentsBeforeNextToken.push_back(FormatTok);
   }
 }
 
 void UnwrappedLineParser::readToken(int LevelDifference) {
while (!Line->InPPDirective && FormatTok->is(tok::hash) &&
       assert((LevelDifference >= 0 ||
               static_cast<unsigned>(-LevelDifference) <= Line->Level) &&
              "LevelDifference makes Line->Level negative");
       Line->Level += LevelDifference;
       // Comments stored before the preprocessor directive need to be output
       // before the preprocessor directive, at the same level as the
       // preprocessor directive, as we consider them to apply to the directive.
       if (Style.IndentPPDirectives == FormatStyle::PPDIS_BeforeHash &&
-          PPBranchLevel > 0)
+          PPBranchLevel > 0) {
         Line->Level += PPBranchLevel;
+      }
       flushComments(isOnNewLine(*FormatTok));
       parsePPDirective();
       PreviousWasComment = FormatTok->is(tok::comment);
       FirstNonCommentOnLine = IsFirstNonCommentOnLine(
           FirstNonCommentOnLine, *FormatTok, PreviousWasComment);
     }
 
     if (!PPStack.empty() && (PPStack.back().Kind == PP_Unreachable) &&
-        !Line->InPPDirective)
+        !Line->InPPDirective) {
       continue;
+    }
 
     if (!FormatTok->is(tok::comment)) {
       distributeComments(Comments, FormatTok);
       Comments.clear();
       return;
     }
 
     Comments.push_back(FormatTok);

clang/lib/Format/WhitespaceManager.cpp

if (NewlinePos == StringRef::npos) {
                                    Changes[i - 1].CurrentLinePrefix.size();
     } else {
       Changes[i - 1].TokenLength =
           NewlinePos + Changes[i - 1].CurrentLinePrefix.size();
     }
 
     // If there are multiple changes in this token, sum up all the changes until
     // the end of the line.
-    if (Changes[i - 1].IsInsideToken && Changes[i - 1].NewlinesBefore == 0)
+    if (Changes[i - 1].IsInsideToken && Changes[i - 1].NewlinesBefore == 0) {
       LastOutsideTokenChange->TokenLength +=
           Changes[i - 1].TokenLength + Changes[i - 1].Spaces;
-    else
+    } else {
       LastOutsideTokenChange = &Changes[i - 1];
+    }
 
     Changes[i].PreviousEndOfTokenColumn =
         Changes[i - 1].StartOfTokenColumn + Changes[i - 1].TokenLength;
 
     Changes[i - 1].IsTrailingComment =
         (Changes[i].NewlinesBefore > 0 || Changes[i].Tok->is(tok::eof) ||
          (Changes[i].IsInsideToken && Changes[i].Tok->is(tok::comment))) &&
         Changes[i - 1].Tok->is(tok::comment) &&
for (auto &Change : Changes) {
     // Reset the IsTrailingComment flag for changes inside of trailing comments
     // so they don't get realigned later. Comment line breaks however still need
     // to be aligned.
     if (Change.IsInsideToken && Change.NewlinesBefore == 0)
       Change.IsTrailingComment = false;
     Change.StartOfBlockComment = nullptr;
     Change.IndentationOffset = 0;
     if (Change.Tok->is(tok::comment)) {
-      if (Change.Tok->is(TT_LineComment) || !Change.IsInsideToken)
+      if (Change.Tok->is(TT_LineComment) || !Change.IsInsideToken) {
         LastBlockComment = &Change;
-      else {
-        if ((Change.StartOfBlockComment = LastBlockComment))
+      } else {
+        if ((Change.StartOfBlockComment = LastBlockComment)) {
           Change.IndentationOffset =
               Change.StartOfTokenColumn -
               Change.StartOfBlockComment->StartOfTokenColumn;
         }
+      }
     } else {
       LastBlockComment = nullptr;
     }
   }
 
   // Compute conditional nesting level
   // Level is increased for each conditional, unless this conditional continues
   // a chain of conditional, i.e. starts immediately after the colon of another
AlignTokenSequence(const FormatStyle &Style, unsigned Start, unsigned End,
   //   auto s   = "Hello"
   //          "World";
   // Special handling is required for 'nested' ternary operators.
   SmallVector<unsigned, 16> ScopeStack;
 
   for (unsigned i = Start; i != End; ++i) {
     if (ScopeStack.size() != 0 &&
         Changes[i].indentAndNestingLevel() <
-            Changes[ScopeStack.back()].indentAndNestingLevel())
+            Changes[ScopeStack.back()].indentAndNestingLevel()) {
       ScopeStack.pop_back();
+    }
 
     // Compare current token to previous non-comment token to ensure whether
     // it is in a deeper scope or not.
     unsigned PreviousNonComment = i - 1;
     while (PreviousNonComment > Start &&
-           Changes[PreviousNonComment].Tok->is(tok::comment))
+           Changes[PreviousNonComment].Tok->is(tok::comment)) {
       --PreviousNonComment;
+    }
     if (i != Start && Changes[i].indentAndNestingLevel() >
-                          Changes[PreviousNonComment].indentAndNestingLevel())
+                          Changes[PreviousNonComment].indentAndNestingLevel()) {
       ScopeStack.push_back(i);
+    }
 
     bool InsideNestedScope = ScopeStack.size() != 0;
     bool ContinuedStringLiteral = i > Start &&
                                   Changes[i].Tok->is(tok::string_literal) &&
                                   Changes[i - 1].Tok->is(tok::string_literal);
     bool SkipMatchCheck = InsideNestedScope || ContinuedStringLiteral;
 
     if (Changes[i].NewlinesBefore > 0 && !SkipMatchCheck) {
       Shift = 0;
       FoundMatchOnLine = false;
     }
 
     // If this is the first matching token to be aligned, remember by how many
     // spaces it has to be shifted, so the rest of the changes on the line are
     // shifted by the same amount
     if (!FoundMatchOnLine && !SkipMatchCheck && Matches(Changes[i])) {
       FoundMatchOnLine = true;
       Shift = Column - (RightJustify ? Changes[i].TokenLength : 0) -
               Changes[i].StartOfTokenColumn;
       Changes[i].Spaces += Shift;
       // FIXME: This is a workaround that should be removed when we fix
       // http://llvm.org/PR53699. An assertion later below verifies this.
-      if (Changes[i].NewlinesBefore == 0)
+      if (Changes[i].NewlinesBefore == 0) {
         Changes[i].Spaces =
             std::max(Changes[i].Spaces,
                      static_cast<int>(Changes[i].Tok->SpacesRequiredBefore));
       }
+    }
 
     // This is for function parameters that are split across multiple lines,
     // as mentioned in the ScopeStack comment.
     if (InsideNestedScope && Changes[i].NewlinesBefore > 0) {
       unsigned ScopeStart = ScopeStack.back();
       auto ShouldShiftBeAdded = [&] {
         // Function declaration
         if (Changes[ScopeStart - 1].Tok->is(TT_FunctionDeclarationName))
           return true;
 
         // Lambda.
         if (Changes[ScopeStart - 1].Tok->is(TT_LambdaLBrace))
           return false;
 
         // Continued function declaration
         if (ScopeStart > Start + 1 &&
-            Changes[ScopeStart - 2].Tok->is(TT_FunctionDeclarationName))
+            Changes[ScopeStart - 2].Tok->is(TT_FunctionDeclarationName)) {
           return true;
+        }
 
         // Continued function call
         if (ScopeStart > Start + 1 &&
             Changes[ScopeStart - 2].Tok->is(tok::identifier) &&
             Changes[ScopeStart - 1].Tok->is(tok::l_paren) &&
             Changes[ScopeStart].Tok->isNot(TT_LambdaLSquare)) {
           if (Changes[i].Tok->MatchingParen &&
-              Changes[i].Tok->MatchingParen->is(TT_LambdaLBrace))
+              Changes[i].Tok->MatchingParen->is(TT_LambdaLBrace)) {
             return false;
+          }
           if (Changes[ScopeStart].NewlinesBefore > 0)
             return false;
           if (Changes[i].Tok->is(tok::l_brace) &&
-              Changes[i].Tok->is(BK_BracedInit))
+              Changes[i].Tok->is(BK_BracedInit)) {
             return true;
+          }
           return Style.BinPackArguments;
         }
 
         // Ternary operator
         if (Changes[i].Tok->is(TT_ConditionalExpr))
           return true;
 
         // Period Initializer .XXX = 1.
         if (Changes[i].Tok->is(TT_DesignatedInitializerPeriod))
           return true;
 
         // Continued ternary operator
         if (Changes[i].Tok->Previous &&
-            Changes[i].Tok->Previous->is(TT_ConditionalExpr))
+            Changes[i].Tok->Previous->is(TT_ConditionalExpr)) {
           return true;
+        }
 
         // Continued direct-list-initialization using braced list.
         if (ScopeStart > Start + 1 &&
             Changes[ScopeStart - 2].Tok->is(tok::identifier) &&
             Changes[ScopeStart - 1].Tok->is(tok::l_brace) &&
             Changes[i].Tok->is(tok::l_brace) &&
-            Changes[i].Tok->is(BK_BracedInit))
+            Changes[i].Tok->is(BK_BracedInit)) {
           return true;
+        }
 
         // Continued braced list.
         if (ScopeStart > Start + 1 &&
             Changes[ScopeStart - 2].Tok->isNot(tok::identifier) &&
             Changes[ScopeStart - 1].Tok->is(tok::l_brace) &&
             Changes[i].Tok->isNot(tok::r_brace)) {
           for (unsigned OuterScopeStart : llvm::reverse(ScopeStack)) {
             // Lambda.
             if (OuterScopeStart > Start &&
-                Changes[OuterScopeStart - 1].Tok->is(TT_LambdaLBrace))
+                Changes[OuterScopeStart - 1].Tok->is(TT_LambdaLBrace)) {
               return false;
             }
+          }
           if (Changes[ScopeStart].NewlinesBefore > 0)
             return false;
           return true;
         }
 
         return false;
       };
 
static unsigned AlignTokens(const FormatStyle &Style, F &&Matches,
   // Aligns a sequence of matching tokens, on the MinColumn column.
   //
   // Sequences start from the first matching token to align, and end at the
   // first token of the first line that doesn't need to be aligned.
   //
   // We need to adjust the StartOfTokenColumn of each Change that is on a line
   // containing any matching token to be aligned and located after such token.
   auto AlignCurrentSequence = [&] {
-    if (StartOfSequence > 0 && StartOfSequence < EndOfSequence)
+    if (StartOfSequence > 0 && StartOfSequence < EndOfSequence) {
       AlignTokenSequence(Style, StartOfSequence, EndOfSequence,
                          WidthLeft + WidthAnchor, RightJustify, Matches,
                          Changes);
+    }
     WidthLeft = 0;
     WidthAnchor = 0;
     WidthRight = 0;
     StartOfSequence = 0;
     EndOfSequence = 0;
   };
 
   unsigned i = StartAt;
if (Changes[i].NewlinesBefore != 0) {
           !FoundMatchOnLine && !(LineIsComment && ACS.AcrossComments);
 
       if (EmptyLineBreak || NoMatchBreak)
         AlignCurrentSequence();
 
       // A new line starts, re-initialize line status tracking bools.
       // Keep the match state if a string literal is continued on this line.
       if (i == 0 || !Changes[i].Tok->is(tok::string_literal) ||
-          !Changes[i - 1].Tok->is(tok::string_literal))
+          !Changes[i - 1].Tok->is(tok::string_literal)) {
         FoundMatchOnLine = false;
+      }
       LineIsComment = true;
     }
 
     if (!Changes[i].Tok->is(tok::comment))
       LineIsComment = false;
 
     if (Changes[i].Tok->is(tok::comma)) {
       ++CommasBeforeMatch;
for (unsigned e = Changes.size(); i != e; ++i) {
     FoundMatchOnLine = true;
 
     if (StartOfSequence == 0)
       StartOfSequence = i;
 
     unsigned ChangeWidthLeft = Changes[i].StartOfTokenColumn;
     unsigned ChangeWidthAnchor = 0;
     unsigned ChangeWidthRight = 0;
-    if (RightJustify) {
+    if (RightJustify)
       if (ACS.PadOperators)
         ChangeWidthAnchor = Changes[i].TokenLength;
       else
         ChangeWidthLeft += Changes[i].TokenLength;
-    } else
+    else
       ChangeWidthRight = Changes[i].TokenLength;
     for (unsigned j = i + 1; j != e && Changes[j].NewlinesBefore == 0; ++j) {
       ChangeWidthRight += Changes[j].Spaces;
       // Changes are generally 1:1 with the tokens, but a change could also be
       // inside of a token, in which case it's counted more than once: once for
       // the whitespace surrounding the token (!IsInsideToken) and once for
       // each whitespace change within it (IsInsideToken).
       // Therefore, changes inside of a token should only count the space.
if (Changes[I].NewlinesBefore != 0) {
                             !Style.AlignConsecutiveMacros.AcrossEmptyLines;
 
       // Whether to break the alignment sequence because of a line without a
       // match.
       bool NoMatchBreak =
           !FoundMatchOnLine &&
           !(LineIsComment && Style.AlignConsecutiveMacros.AcrossComments);
 
-      if (EmptyLineBreak || NoMatchBreak)
+      if (EmptyLineBreak || NoMatchBreak) {
         AlignMacroSequence(StartOfSequence, EndOfSequence, MinColumn, MaxColumn,
                            FoundMatchOnLine, AlignMacrosMatches, Changes);
+      }
 
       // A new line starts, re-initialize line status tracking bools.
       FoundMatchOnLine = false;
       LineIsComment = true;
     }
 
     if (!Changes[I].Tok->is(tok::comment))
       LineIsComment = false;
AlignTokens(
         for (FormatToken *Next = C.Tok->Next; Next; Next = Next->Next) {
           if (Next->is(tok::comment))
             continue;
           if (Next->is(TT_PointerOrReference))
             return false;
           if (!Next->Tok.getIdentifierInfo())
             break;
           if (Next->isOneOf(TT_StartOfName, TT_FunctionDeclarationName,
-                            tok::kw_operator))
+                            tok::kw_operator)) {
             return false;
           }
+        }
         return true;
       },
       Changes, /*StartAt=*/0, Style.AlignConsecutiveDeclarations);
 }
 
 void WhitespaceManager::alignChainedConditionals() {
   if (Style.BreakBeforeTernaryOperators) {
     AlignTokens(
for (auto i = 1U; i < CellDescs.CellCounts[0]; i++, ++CellIter) {
     }
   }
 }
 
 bool WhitespaceManager::isSplitCell(const CellDescription &Cell) {
   if (Cell.HasSplit)
     return true;
   for (const auto *Next = Cell.NextColumnElement; Next != nullptr;
-       Next = Next->NextColumnElement)
+       Next = Next->NextColumnElement) {
     if (Next->HasSplit)
       return true;
+  }
   return false;
 }
 
 WhitespaceManager::CellDescriptions WhitespaceManager::getCells(unsigned Start,
                                                                 unsigned End) {
 
   unsigned Depth = 0;
   unsigned Cell = 0;
for (unsigned i = 0, e = Changes.size(); i != e; ++i) {
     const Change &C = Changes[i];
     if (i > 0 && Changes[i - 1].OriginalWhitespaceRange.getBegin() ==
                      C.OriginalWhitespaceRange.getBegin()) {
       // Do not generate two replacements for the same location.
       continue;
     }
     if (C.CreateReplacement) {
       std::string ReplacementText = C.PreviousLinePostfix;
-      if (C.ContinuesPPDirective)
+      if (C.ContinuesPPDirective) {
         appendEscapedNewlineText(ReplacementText, C.NewlinesBefore,
                                  C.PreviousEndOfTokenColumn,
                                  C.EscapedNewlineColumn);
-      else
+      } else {
         appendNewlineText(ReplacementText, C.NewlinesBefore);
+      }
       // FIXME: This assert should hold if we computed the column correctly.
       // assert((int)C.StartOfTokenColumn >= C.Spaces);
       appendIndentText(
           ReplacementText, C.Tok->IndentLevel, std::max(0, C.Spaces),
           std::max((int)C.StartOfTokenColumn, C.Spaces) - std::max(0, C.Spaces),
           C.IsAligned);
       ReplacementText.append(C.CurrentLinePrefix);
       storeReplacement(C.OriginalWhitespaceRange, ReplacementText);
     }
   }
 }
 
 void WhitespaceManager::storeReplacement(SourceRange Range, StringRef Text) {
   unsigned WhitespaceLength = SourceMgr.getFileOffset(Range.getEnd()) -
                               SourceMgr.getFileOffset(Range.getBegin());
   // Don't create a replacement, if it does not change anything.
   if (StringRef(SourceMgr.getCharacterData(Range.getBegin()),
-                WhitespaceLength) == Text)
+                WhitespaceLength) == Text) {
     return;
+  }
   auto Err = Replaces.add(tooling::Replacement(
       SourceMgr, CharSourceRange::getCharRange(Range), Text));
   // FIXME: better error handling. For now, just print an error message in the
   // release version.
   if (Err) {
     llvm::errs() << llvm::toString(std::move(Err)) << "\n";
     assert(false);
   }