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      1 //===--- FormatToken.h - Format C++ code ------------------------*- C++ -*-===//
      2 //
      3 //                     The LLVM Compiler Infrastructure
      4 //
      5 // This file is distributed under the University of Illinois Open Source
      6 // License. See LICENSE.TXT for details.
      7 //
      8 //===----------------------------------------------------------------------===//
      9 ///
     10 /// \file
     11 /// \brief This file contains the declaration of the FormatToken, a wrapper
     12 /// around Token with additional information related to formatting.
     13 ///
     14 //===----------------------------------------------------------------------===//
     15 
     16 #ifndef LLVM_CLANG_LIB_FORMAT_FORMATTOKEN_H
     17 #define LLVM_CLANG_LIB_FORMAT_FORMATTOKEN_H
     18 
     19 #include "clang/Basic/IdentifierTable.h"
     20 #include "clang/Basic/OperatorPrecedence.h"
     21 #include "clang/Format/Format.h"
     22 #include "clang/Lex/Lexer.h"
     23 #include <memory>
     24 
     25 namespace clang {
     26 namespace format {
     27 
     28 #define LIST_TOKEN_TYPES \
     29   TYPE(ArrayInitializerLSquare) \
     30   TYPE(ArraySubscriptLSquare) \
     31   TYPE(AttributeParen) \
     32   TYPE(BinaryOperator) \
     33   TYPE(BitFieldColon) \
     34   TYPE(BlockComment) \
     35   TYPE(CastRParen) \
     36   TYPE(ConditionalExpr) \
     37   TYPE(ConflictAlternative) \
     38   TYPE(ConflictEnd) \
     39   TYPE(ConflictStart) \
     40   TYPE(CtorInitializerColon) \
     41   TYPE(CtorInitializerComma) \
     42   TYPE(DesignatedInitializerPeriod) \
     43   TYPE(DictLiteral) \
     44   TYPE(ForEachMacro) \
     45   TYPE(FunctionAnnotationRParen) \
     46   TYPE(FunctionDeclarationName) \
     47   TYPE(FunctionLBrace) \
     48   TYPE(FunctionTypeLParen) \
     49   TYPE(ImplicitStringLiteral) \
     50   TYPE(InheritanceColon) \
     51   TYPE(InlineASMBrace) \
     52   TYPE(InlineASMColon) \
     53   TYPE(JavaAnnotation) \
     54   TYPE(JsComputedPropertyName) \
     55   TYPE(JsFatArrow) \
     56   TYPE(JsTypeColon) \
     57   TYPE(JsTypeOperator) \
     58   TYPE(JsTypeOptionalQuestion) \
     59   TYPE(LambdaArrow) \
     60   TYPE(LambdaLSquare) \
     61   TYPE(LeadingJavaAnnotation) \
     62   TYPE(LineComment) \
     63   TYPE(MacroBlockBegin) \
     64   TYPE(MacroBlockEnd) \
     65   TYPE(ObjCBlockLBrace) \
     66   TYPE(ObjCBlockLParen) \
     67   TYPE(ObjCDecl) \
     68   TYPE(ObjCForIn) \
     69   TYPE(ObjCMethodExpr) \
     70   TYPE(ObjCMethodSpecifier) \
     71   TYPE(ObjCProperty) \
     72   TYPE(ObjCStringLiteral) \
     73   TYPE(OverloadedOperator) \
     74   TYPE(OverloadedOperatorLParen) \
     75   TYPE(PointerOrReference) \
     76   TYPE(PureVirtualSpecifier) \
     77   TYPE(RangeBasedForLoopColon) \
     78   TYPE(RegexLiteral) \
     79   TYPE(SelectorName) \
     80   TYPE(StartOfName) \
     81   TYPE(TemplateCloser) \
     82   TYPE(TemplateOpener) \
     83   TYPE(TemplateString) \
     84   TYPE(TrailingAnnotation) \
     85   TYPE(TrailingReturnArrow) \
     86   TYPE(TrailingUnaryOperator) \
     87   TYPE(UnaryOperator) \
     88   TYPE(Unknown)
     89 
     90 enum TokenType {
     91 #define TYPE(X) TT_##X,
     92 LIST_TOKEN_TYPES
     93 #undef TYPE
     94   NUM_TOKEN_TYPES
     95 };
     96 
     97 /// \brief Determines the name of a token type.
     98 const char *getTokenTypeName(TokenType Type);
     99 
    100 // Represents what type of block a set of braces open.
    101 enum BraceBlockKind { BK_Unknown, BK_Block, BK_BracedInit };
    102 
    103 // The packing kind of a function's parameters.
    104 enum ParameterPackingKind { PPK_BinPacked, PPK_OnePerLine, PPK_Inconclusive };
    105 
    106 enum FormatDecision { FD_Unformatted, FD_Continue, FD_Break };
    107 
    108 class TokenRole;
    109 class AnnotatedLine;
    110 
    111 /// \brief A wrapper around a \c Token storing information about the
    112 /// whitespace characters preceding it.
    113 struct FormatToken {
    114   FormatToken() {}
    115 
    116   /// \brief The \c Token.
    117   Token Tok;
    118 
    119   /// \brief The number of newlines immediately before the \c Token.
    120   ///
    121   /// This can be used to determine what the user wrote in the original code
    122   /// and thereby e.g. leave an empty line between two function definitions.
    123   unsigned NewlinesBefore = 0;
    124 
    125   /// \brief Whether there is at least one unescaped newline before the \c
    126   /// Token.
    127   bool HasUnescapedNewline = false;
    128 
    129   /// \brief The range of the whitespace immediately preceding the \c Token.
    130   SourceRange WhitespaceRange;
    131 
    132   /// \brief The offset just past the last '\n' in this token's leading
    133   /// whitespace (relative to \c WhiteSpaceStart). 0 if there is no '\n'.
    134   unsigned LastNewlineOffset = 0;
    135 
    136   /// \brief The width of the non-whitespace parts of the token (or its first
    137   /// line for multi-line tokens) in columns.
    138   /// We need this to correctly measure number of columns a token spans.
    139   unsigned ColumnWidth = 0;
    140 
    141   /// \brief Contains the width in columns of the last line of a multi-line
    142   /// token.
    143   unsigned LastLineColumnWidth = 0;
    144 
    145   /// \brief Whether the token text contains newlines (escaped or not).
    146   bool IsMultiline = false;
    147 
    148   /// \brief Indicates that this is the first token of the file.
    149   bool IsFirst = false;
    150 
    151   /// \brief Whether there must be a line break before this token.
    152   ///
    153   /// This happens for example when a preprocessor directive ended directly
    154   /// before the token.
    155   bool MustBreakBefore = false;
    156 
    157   /// \brief The raw text of the token.
    158   ///
    159   /// Contains the raw token text without leading whitespace and without leading
    160   /// escaped newlines.
    161   StringRef TokenText;
    162 
    163   /// \brief Set to \c true if this token is an unterminated literal.
    164   bool IsUnterminatedLiteral = 0;
    165 
    166   /// \brief Contains the kind of block if this token is a brace.
    167   BraceBlockKind BlockKind = BK_Unknown;
    168 
    169   TokenType Type = TT_Unknown;
    170 
    171   /// \brief The number of spaces that should be inserted before this token.
    172   unsigned SpacesRequiredBefore = 0;
    173 
    174   /// \brief \c true if it is allowed to break before this token.
    175   bool CanBreakBefore = false;
    176 
    177   /// \brief \c true if this is the ">" of "template<..>".
    178   bool ClosesTemplateDeclaration = false;
    179 
    180   /// \brief Number of parameters, if this is "(", "[" or "<".
    181   ///
    182   /// This is initialized to 1 as we don't need to distinguish functions with
    183   /// 0 parameters from functions with 1 parameter. Thus, we can simply count
    184   /// the number of commas.
    185   unsigned ParameterCount = 0;
    186 
    187   /// \brief Number of parameters that are nested blocks,
    188   /// if this is "(", "[" or "<".
    189   unsigned BlockParameterCount = 0;
    190 
    191   /// \brief If this is a bracket ("<", "(", "[" or "{"), contains the kind of
    192   /// the surrounding bracket.
    193   tok::TokenKind ParentBracket = tok::unknown;
    194 
    195   /// \brief A token can have a special role that can carry extra information
    196   /// about the token's formatting.
    197   std::unique_ptr<TokenRole> Role;
    198 
    199   /// \brief If this is an opening parenthesis, how are the parameters packed?
    200   ParameterPackingKind PackingKind = PPK_Inconclusive;
    201 
    202   /// \brief The total length of the unwrapped line up to and including this
    203   /// token.
    204   unsigned TotalLength = 0;
    205 
    206   /// \brief The original 0-based column of this token, including expanded tabs.
    207   /// The configured TabWidth is used as tab width.
    208   unsigned OriginalColumn = 0;
    209 
    210   /// \brief The length of following tokens until the next natural split point,
    211   /// or the next token that can be broken.
    212   unsigned UnbreakableTailLength = 0;
    213 
    214   // FIXME: Come up with a 'cleaner' concept.
    215   /// \brief The binding strength of a token. This is a combined value of
    216   /// operator precedence, parenthesis nesting, etc.
    217   unsigned BindingStrength = 0;
    218 
    219   /// \brief The nesting level of this token, i.e. the number of surrounding (),
    220   /// [], {} or <>.
    221   unsigned NestingLevel = 0;
    222 
    223   /// \brief Penalty for inserting a line break before this token.
    224   unsigned SplitPenalty = 0;
    225 
    226   /// \brief If this is the first ObjC selector name in an ObjC method
    227   /// definition or call, this contains the length of the longest name.
    228   ///
    229   /// This being set to 0 means that the selectors should not be colon-aligned,
    230   /// e.g. because several of them are block-type.
    231   unsigned LongestObjCSelectorName = 0;
    232 
    233   /// \brief Stores the number of required fake parentheses and the
    234   /// corresponding operator precedence.
    235   ///
    236   /// If multiple fake parentheses start at a token, this vector stores them in
    237   /// reverse order, i.e. inner fake parenthesis first.
    238   SmallVector<prec::Level, 4> FakeLParens;
    239   /// \brief Insert this many fake ) after this token for correct indentation.
    240   unsigned FakeRParens = 0;
    241 
    242   /// \brief \c true if this token starts a binary expression, i.e. has at least
    243   /// one fake l_paren with a precedence greater than prec::Unknown.
    244   bool StartsBinaryExpression = false;
    245   /// \brief \c true if this token ends a binary expression.
    246   bool EndsBinaryExpression = false;
    247 
    248   /// \brief Is this is an operator (or "."/"->") in a sequence of operators
    249   /// with the same precedence, contains the 0-based operator index.
    250   unsigned OperatorIndex = 0;
    251 
    252   /// \brief If this is an operator (or "."/"->") in a sequence of operators
    253   /// with the same precedence, points to the next operator.
    254   FormatToken *NextOperator = nullptr;
    255 
    256   /// \brief Is this token part of a \c DeclStmt defining multiple variables?
    257   ///
    258   /// Only set if \c Type == \c TT_StartOfName.
    259   bool PartOfMultiVariableDeclStmt = false;
    260 
    261   /// \brief If this is a bracket, this points to the matching one.
    262   FormatToken *MatchingParen = nullptr;
    263 
    264   /// \brief The previous token in the unwrapped line.
    265   FormatToken *Previous = nullptr;
    266 
    267   /// \brief The next token in the unwrapped line.
    268   FormatToken *Next = nullptr;
    269 
    270   /// \brief If this token starts a block, this contains all the unwrapped lines
    271   /// in it.
    272   SmallVector<AnnotatedLine *, 1> Children;
    273 
    274   /// \brief Stores the formatting decision for the token once it was made.
    275   FormatDecision Decision = FD_Unformatted;
    276 
    277   /// \brief If \c true, this token has been fully formatted (indented and
    278   /// potentially re-formatted inside), and we do not allow further formatting
    279   /// changes.
    280   bool Finalized = false;
    281 
    282   bool is(tok::TokenKind Kind) const { return Tok.is(Kind); }
    283   bool is(TokenType TT) const { return Type == TT; }
    284   bool is(const IdentifierInfo *II) const {
    285     return II && II == Tok.getIdentifierInfo();
    286   }
    287   bool is(tok::PPKeywordKind Kind) const {
    288     return Tok.getIdentifierInfo() &&
    289            Tok.getIdentifierInfo()->getPPKeywordID() == Kind;
    290   }
    291   template <typename A, typename B> bool isOneOf(A K1, B K2) const {
    292     return is(K1) || is(K2);
    293   }
    294   template <typename A, typename B, typename... Ts>
    295   bool isOneOf(A K1, B K2, Ts... Ks) const {
    296     return is(K1) || isOneOf(K2, Ks...);
    297   }
    298   template <typename T> bool isNot(T Kind) const { return !is(Kind); }
    299 
    300   /// \c true if this token starts a sequence with the given tokens in order,
    301   /// following the ``Next`` pointers, ignoring comments.
    302   template <typename A, typename... Ts>
    303   bool startsSequence(A K1, Ts... Tokens) const {
    304     return startsSequenceInternal(K1, Tokens...);
    305   }
    306 
    307   /// \c true if this token ends a sequence with the given tokens in order,
    308   /// following the ``Previous`` pointers, ignoring comments.
    309   template <typename A, typename... Ts>
    310   bool endsSequence(A K1, Ts... Tokens) const {
    311     return endsSequenceInternal(K1, Tokens...);
    312   }
    313 
    314   bool isStringLiteral() const { return tok::isStringLiteral(Tok.getKind()); }
    315 
    316   bool isObjCAtKeyword(tok::ObjCKeywordKind Kind) const {
    317     return Tok.isObjCAtKeyword(Kind);
    318   }
    319 
    320   bool isAccessSpecifier(bool ColonRequired = true) const {
    321     return isOneOf(tok::kw_public, tok::kw_protected, tok::kw_private) &&
    322            (!ColonRequired || (Next && Next->is(tok::colon)));
    323   }
    324 
    325   /// \brief Determine whether the token is a simple-type-specifier.
    326   bool isSimpleTypeSpecifier() const;
    327 
    328   bool isObjCAccessSpecifier() const {
    329     return is(tok::at) && Next && (Next->isObjCAtKeyword(tok::objc_public) ||
    330                                    Next->isObjCAtKeyword(tok::objc_protected) ||
    331                                    Next->isObjCAtKeyword(tok::objc_package) ||
    332                                    Next->isObjCAtKeyword(tok::objc_private));
    333   }
    334 
    335   /// \brief Returns whether \p Tok is ([{ or a template opening <.
    336   bool opensScope() const {
    337     return isOneOf(tok::l_paren, tok::l_brace, tok::l_square,
    338                    TT_TemplateOpener);
    339   }
    340   /// \brief Returns whether \p Tok is )]} or a template closing >.
    341   bool closesScope() const {
    342     return isOneOf(tok::r_paren, tok::r_brace, tok::r_square,
    343                    TT_TemplateCloser);
    344   }
    345 
    346   /// \brief Returns \c true if this is a "." or "->" accessing a member.
    347   bool isMemberAccess() const {
    348     return isOneOf(tok::arrow, tok::period, tok::arrowstar) &&
    349            !isOneOf(TT_DesignatedInitializerPeriod, TT_TrailingReturnArrow,
    350                     TT_LambdaArrow);
    351   }
    352 
    353   bool isUnaryOperator() const {
    354     switch (Tok.getKind()) {
    355     case tok::plus:
    356     case tok::plusplus:
    357     case tok::minus:
    358     case tok::minusminus:
    359     case tok::exclaim:
    360     case tok::tilde:
    361     case tok::kw_sizeof:
    362     case tok::kw_alignof:
    363       return true;
    364     default:
    365       return false;
    366     }
    367   }
    368 
    369   bool isBinaryOperator() const {
    370     // Comma is a binary operator, but does not behave as such wrt. formatting.
    371     return getPrecedence() > prec::Comma;
    372   }
    373 
    374   bool isTrailingComment() const {
    375     return is(tok::comment) &&
    376            (is(TT_LineComment) || !Next || Next->NewlinesBefore > 0);
    377   }
    378 
    379   /// \brief Returns \c true if this is a keyword that can be used
    380   /// like a function call (e.g. sizeof, typeid, ...).
    381   bool isFunctionLikeKeyword() const {
    382     switch (Tok.getKind()) {
    383     case tok::kw_throw:
    384     case tok::kw_typeid:
    385     case tok::kw_return:
    386     case tok::kw_sizeof:
    387     case tok::kw_alignof:
    388     case tok::kw_alignas:
    389     case tok::kw_decltype:
    390     case tok::kw_noexcept:
    391     case tok::kw_static_assert:
    392     case tok::kw___attribute:
    393       return true;
    394     default:
    395       return false;
    396     }
    397   }
    398 
    399   /// \brief Returns actual token start location without leading escaped
    400   /// newlines and whitespace.
    401   ///
    402   /// This can be different to Tok.getLocation(), which includes leading escaped
    403   /// newlines.
    404   SourceLocation getStartOfNonWhitespace() const {
    405     return WhitespaceRange.getEnd();
    406   }
    407 
    408   prec::Level getPrecedence() const {
    409     return getBinOpPrecedence(Tok.getKind(), true, true);
    410   }
    411 
    412   /// \brief Returns the previous token ignoring comments.
    413   FormatToken *getPreviousNonComment() const {
    414     FormatToken *Tok = Previous;
    415     while (Tok && Tok->is(tok::comment))
    416       Tok = Tok->Previous;
    417     return Tok;
    418   }
    419 
    420   /// \brief Returns the next token ignoring comments.
    421   const FormatToken *getNextNonComment() const {
    422     const FormatToken *Tok = Next;
    423     while (Tok && Tok->is(tok::comment))
    424       Tok = Tok->Next;
    425     return Tok;
    426   }
    427 
    428   /// \brief Returns \c true if this tokens starts a block-type list, i.e. a
    429   /// list that should be indented with a block indent.
    430   bool opensBlockOrBlockTypeList(const FormatStyle &Style) const {
    431     return is(TT_ArrayInitializerLSquare) ||
    432            (is(tok::l_brace) &&
    433             (BlockKind == BK_Block || is(TT_DictLiteral) ||
    434              (!Style.Cpp11BracedListStyle && NestingLevel == 0)));
    435   }
    436 
    437   /// \brief Same as opensBlockOrBlockTypeList, but for the closing token.
    438   bool closesBlockOrBlockTypeList(const FormatStyle &Style) const {
    439     return MatchingParen && MatchingParen->opensBlockOrBlockTypeList(Style);
    440   }
    441 
    442 private:
    443   // Disallow copying.
    444   FormatToken(const FormatToken &) = delete;
    445   void operator=(const FormatToken &) = delete;
    446 
    447   template <typename A, typename... Ts>
    448   bool startsSequenceInternal(A K1, Ts... Tokens) const {
    449     if (is(tok::comment) && Next)
    450       return Next->startsSequenceInternal(K1, Tokens...);
    451     return is(K1) && Next && Next->startsSequenceInternal(Tokens...);
    452   }
    453 
    454   template <typename A>
    455   bool startsSequenceInternal(A K1) const {
    456     if (is(tok::comment) && Next)
    457       return Next->startsSequenceInternal(K1);
    458     return is(K1);
    459   }
    460 
    461   template <typename A, typename... Ts>
    462   bool endsSequenceInternal(A K1) const {
    463     if (is(tok::comment) && Previous)
    464       return Previous->endsSequenceInternal(K1);
    465     return is(K1);
    466   }
    467 
    468   template <typename A, typename... Ts>
    469   bool endsSequenceInternal(A K1, Ts... Tokens) const {
    470     if (is(tok::comment) && Previous)
    471       return Previous->endsSequenceInternal(K1, Tokens...);
    472     return is(K1) && Previous && Previous->endsSequenceInternal(Tokens...);
    473   }
    474 };
    475 
    476 class ContinuationIndenter;
    477 struct LineState;
    478 
    479 class TokenRole {
    480 public:
    481   TokenRole(const FormatStyle &Style) : Style(Style) {}
    482   virtual ~TokenRole();
    483 
    484   /// \brief After the \c TokenAnnotator has finished annotating all the tokens,
    485   /// this function precomputes required information for formatting.
    486   virtual void precomputeFormattingInfos(const FormatToken *Token);
    487 
    488   /// \brief Apply the special formatting that the given role demands.
    489   ///
    490   /// Assumes that the token having this role is already formatted.
    491   ///
    492   /// Continues formatting from \p State leaving indentation to \p Indenter and
    493   /// returns the total penalty that this formatting incurs.
    494   virtual unsigned formatFromToken(LineState &State,
    495                                    ContinuationIndenter *Indenter,
    496                                    bool DryRun) {
    497     return 0;
    498   }
    499 
    500   /// \brief Same as \c formatFromToken, but assumes that the first token has
    501   /// already been set thereby deciding on the first line break.
    502   virtual unsigned formatAfterToken(LineState &State,
    503                                     ContinuationIndenter *Indenter,
    504                                     bool DryRun) {
    505     return 0;
    506   }
    507 
    508   /// \brief Notifies the \c Role that a comma was found.
    509   virtual void CommaFound(const FormatToken *Token) {}
    510 
    511 protected:
    512   const FormatStyle &Style;
    513 };
    514 
    515 class CommaSeparatedList : public TokenRole {
    516 public:
    517   CommaSeparatedList(const FormatStyle &Style)
    518       : TokenRole(Style), HasNestedBracedList(false) {}
    519 
    520   void precomputeFormattingInfos(const FormatToken *Token) override;
    521 
    522   unsigned formatAfterToken(LineState &State, ContinuationIndenter *Indenter,
    523                             bool DryRun) override;
    524 
    525   unsigned formatFromToken(LineState &State, ContinuationIndenter *Indenter,
    526                            bool DryRun) override;
    527 
    528   /// \brief Adds \p Token as the next comma to the \c CommaSeparated list.
    529   void CommaFound(const FormatToken *Token) override {
    530     Commas.push_back(Token);
    531   }
    532 
    533 private:
    534   /// \brief A struct that holds information on how to format a given list with
    535   /// a specific number of columns.
    536   struct ColumnFormat {
    537     /// \brief The number of columns to use.
    538     unsigned Columns;
    539 
    540     /// \brief The total width in characters.
    541     unsigned TotalWidth;
    542 
    543     /// \brief The number of lines required for this format.
    544     unsigned LineCount;
    545 
    546     /// \brief The size of each column in characters.
    547     SmallVector<unsigned, 8> ColumnSizes;
    548   };
    549 
    550   /// \brief Calculate which \c ColumnFormat fits best into
    551   /// \p RemainingCharacters.
    552   const ColumnFormat *getColumnFormat(unsigned RemainingCharacters) const;
    553 
    554   /// \brief The ordered \c FormatTokens making up the commas of this list.
    555   SmallVector<const FormatToken *, 8> Commas;
    556 
    557   /// \brief The length of each of the list's items in characters including the
    558   /// trailing comma.
    559   SmallVector<unsigned, 8> ItemLengths;
    560 
    561   /// \brief Precomputed formats that can be used for this list.
    562   SmallVector<ColumnFormat, 4> Formats;
    563 
    564   bool HasNestedBracedList;
    565 };
    566 
    567 /// \brief Encapsulates keywords that are context sensitive or for languages not
    568 /// properly supported by Clang's lexer.
    569 struct AdditionalKeywords {
    570   AdditionalKeywords(IdentifierTable &IdentTable) {
    571     kw_final = &IdentTable.get("final");
    572     kw_override = &IdentTable.get("override");
    573     kw_in = &IdentTable.get("in");
    574     kw_of = &IdentTable.get("of");
    575     kw_CF_ENUM = &IdentTable.get("CF_ENUM");
    576     kw_CF_OPTIONS = &IdentTable.get("CF_OPTIONS");
    577     kw_NS_ENUM = &IdentTable.get("NS_ENUM");
    578     kw_NS_OPTIONS = &IdentTable.get("NS_OPTIONS");
    579 
    580     kw_as = &IdentTable.get("as");
    581     kw_async = &IdentTable.get("async");
    582     kw_await = &IdentTable.get("await");
    583     kw_finally = &IdentTable.get("finally");
    584     kw_from = &IdentTable.get("from");
    585     kw_function = &IdentTable.get("function");
    586     kw_import = &IdentTable.get("import");
    587     kw_is = &IdentTable.get("is");
    588     kw_let = &IdentTable.get("let");
    589     kw_type = &IdentTable.get("type");
    590     kw_var = &IdentTable.get("var");
    591     kw_yield = &IdentTable.get("yield");
    592 
    593     kw_abstract = &IdentTable.get("abstract");
    594     kw_assert = &IdentTable.get("assert");
    595     kw_extends = &IdentTable.get("extends");
    596     kw_implements = &IdentTable.get("implements");
    597     kw_instanceof = &IdentTable.get("instanceof");
    598     kw_interface = &IdentTable.get("interface");
    599     kw_native = &IdentTable.get("native");
    600     kw_package = &IdentTable.get("package");
    601     kw_synchronized = &IdentTable.get("synchronized");
    602     kw_throws = &IdentTable.get("throws");
    603     kw___except = &IdentTable.get("__except");
    604 
    605     kw_mark = &IdentTable.get("mark");
    606 
    607     kw_extend = &IdentTable.get("extend");
    608     kw_option = &IdentTable.get("option");
    609     kw_optional = &IdentTable.get("optional");
    610     kw_repeated = &IdentTable.get("repeated");
    611     kw_required = &IdentTable.get("required");
    612     kw_returns = &IdentTable.get("returns");
    613 
    614     kw_signals = &IdentTable.get("signals");
    615     kw_qsignals = &IdentTable.get("Q_SIGNALS");
    616     kw_slots = &IdentTable.get("slots");
    617     kw_qslots = &IdentTable.get("Q_SLOTS");
    618   }
    619 
    620   // Context sensitive keywords.
    621   IdentifierInfo *kw_final;
    622   IdentifierInfo *kw_override;
    623   IdentifierInfo *kw_in;
    624   IdentifierInfo *kw_of;
    625   IdentifierInfo *kw_CF_ENUM;
    626   IdentifierInfo *kw_CF_OPTIONS;
    627   IdentifierInfo *kw_NS_ENUM;
    628   IdentifierInfo *kw_NS_OPTIONS;
    629   IdentifierInfo *kw___except;
    630 
    631   // JavaScript keywords.
    632   IdentifierInfo *kw_as;
    633   IdentifierInfo *kw_async;
    634   IdentifierInfo *kw_await;
    635   IdentifierInfo *kw_finally;
    636   IdentifierInfo *kw_from;
    637   IdentifierInfo *kw_function;
    638   IdentifierInfo *kw_import;
    639   IdentifierInfo *kw_is;
    640   IdentifierInfo *kw_let;
    641   IdentifierInfo *kw_type;
    642   IdentifierInfo *kw_var;
    643   IdentifierInfo *kw_yield;
    644 
    645   // Java keywords.
    646   IdentifierInfo *kw_abstract;
    647   IdentifierInfo *kw_assert;
    648   IdentifierInfo *kw_extends;
    649   IdentifierInfo *kw_implements;
    650   IdentifierInfo *kw_instanceof;
    651   IdentifierInfo *kw_interface;
    652   IdentifierInfo *kw_native;
    653   IdentifierInfo *kw_package;
    654   IdentifierInfo *kw_synchronized;
    655   IdentifierInfo *kw_throws;
    656 
    657   // Pragma keywords.
    658   IdentifierInfo *kw_mark;
    659 
    660   // Proto keywords.
    661   IdentifierInfo *kw_extend;
    662   IdentifierInfo *kw_option;
    663   IdentifierInfo *kw_optional;
    664   IdentifierInfo *kw_repeated;
    665   IdentifierInfo *kw_required;
    666   IdentifierInfo *kw_returns;
    667 
    668   // QT keywords.
    669   IdentifierInfo *kw_signals;
    670   IdentifierInfo *kw_qsignals;
    671   IdentifierInfo *kw_slots;
    672   IdentifierInfo *kw_qslots;
    673 };
    674 
    675 } // namespace format
    676 } // namespace clang
    677 
    678 #endif
    679