1 //===--- FormatToken.h - Format C++ code ------------------------*- C++ -*-===// 2 // 3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 4 // See https://llvm.org/LICENSE.txt for license information. 5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 6 // 7 //===----------------------------------------------------------------------===// 8 /// 9 /// \file 10 /// This file contains the declaration of the FormatToken, a wrapper 11 /// around Token with additional information related to formatting. 12 /// 13 //===----------------------------------------------------------------------===// 14 15 #ifndef LLVM_CLANG_LIB_FORMAT_FORMATTOKEN_H 16 #define LLVM_CLANG_LIB_FORMAT_FORMATTOKEN_H 17 18 #include "clang/Basic/IdentifierTable.h" 19 #include "clang/Basic/OperatorPrecedence.h" 20 #include "clang/Format/Format.h" 21 #include "clang/Lex/Lexer.h" 22 #include <memory> 23 #include <unordered_set> 24 25 namespace clang { 26 namespace format { 27 28 #define LIST_TOKEN_TYPES \ 29 TYPE(ArrayInitializerLSquare) \ 30 TYPE(ArraySubscriptLSquare) \ 31 TYPE(AttributeColon) \ 32 TYPE(AttributeMacro) \ 33 TYPE(AttributeParen) \ 34 TYPE(AttributeSquare) \ 35 TYPE(BinaryOperator) \ 36 TYPE(BitFieldColon) \ 37 TYPE(BlockComment) \ 38 TYPE(BracedListLBrace) \ 39 TYPE(CastRParen) \ 40 TYPE(CompoundRequirementLBrace) \ 41 TYPE(ConditionalExpr) \ 42 TYPE(ConflictAlternative) \ 43 TYPE(ConflictEnd) \ 44 TYPE(ConflictStart) \ 45 TYPE(CtorInitializerColon) \ 46 TYPE(CtorInitializerComma) \ 47 TYPE(DesignatedInitializerLSquare) \ 48 TYPE(DesignatedInitializerPeriod) \ 49 TYPE(DictLiteral) \ 50 TYPE(FatArrow) \ 51 TYPE(ForEachMacro) \ 52 TYPE(FunctionAnnotationRParen) \ 53 TYPE(FunctionDeclarationName) \ 54 TYPE(FunctionLBrace) \ 55 TYPE(FunctionLikeOrFreestandingMacro) \ 56 TYPE(FunctionTypeLParen) \ 57 TYPE(IfMacro) \ 58 TYPE(ImplicitStringLiteral) \ 59 TYPE(InheritanceColon) \ 60 TYPE(InheritanceComma) \ 61 TYPE(InlineASMBrace) \ 62 TYPE(InlineASMColon) \ 63 TYPE(InlineASMSymbolicNameLSquare) \ 64 TYPE(JavaAnnotation) \ 65 TYPE(JsComputedPropertyName) \ 66 TYPE(JsExponentiation) \ 67 TYPE(JsExponentiationEqual) \ 68 TYPE(JsPipePipeEqual) \ 69 TYPE(JsPrivateIdentifier) \ 70 TYPE(JsTypeColon) \ 71 TYPE(JsTypeOperator) \ 72 TYPE(JsTypeOptionalQuestion) \ 73 TYPE(JsAndAndEqual) \ 74 TYPE(LambdaArrow) \ 75 TYPE(LambdaLBrace) \ 76 TYPE(LambdaLSquare) \ 77 TYPE(LeadingJavaAnnotation) \ 78 TYPE(LineComment) \ 79 TYPE(MacroBlockBegin) \ 80 TYPE(MacroBlockEnd) \ 81 TYPE(ModulePartitionColon) \ 82 TYPE(NamespaceMacro) \ 83 TYPE(NonNullAssertion) \ 84 TYPE(NullCoalescingEqual) \ 85 TYPE(NullCoalescingOperator) \ 86 TYPE(NullPropagatingOperator) \ 87 TYPE(ObjCBlockLBrace) \ 88 TYPE(ObjCBlockLParen) \ 89 TYPE(ObjCDecl) \ 90 TYPE(ObjCForIn) \ 91 TYPE(ObjCMethodExpr) \ 92 TYPE(ObjCMethodSpecifier) \ 93 TYPE(ObjCProperty) \ 94 TYPE(ObjCStringLiteral) \ 95 TYPE(OverloadedOperator) \ 96 TYPE(OverloadedOperatorLParen) \ 97 TYPE(PointerOrReference) \ 98 TYPE(PureVirtualSpecifier) \ 99 TYPE(RangeBasedForLoopColon) \ 100 TYPE(RecordLBrace) \ 101 TYPE(RegexLiteral) \ 102 TYPE(RequiresClause) \ 103 TYPE(RequiresClauseInARequiresExpression) \ 104 TYPE(RequiresExpression) \ 105 TYPE(RequiresExpressionLBrace) \ 106 TYPE(RequiresExpressionLParen) \ 107 TYPE(SelectorName) \ 108 TYPE(StartOfName) \ 109 TYPE(StatementAttributeLikeMacro) \ 110 TYPE(StatementMacro) \ 111 TYPE(StructuredBindingLSquare) \ 112 TYPE(TemplateCloser) \ 113 TYPE(TemplateOpener) \ 114 TYPE(TemplateString) \ 115 TYPE(ProtoExtensionLSquare) \ 116 TYPE(TrailingAnnotation) \ 117 TYPE(TrailingReturnArrow) \ 118 TYPE(TrailingUnaryOperator) \ 119 TYPE(TypeDeclarationParen) \ 120 TYPE(TypenameMacro) \ 121 TYPE(UnaryOperator) \ 122 TYPE(UntouchableMacroFunc) \ 123 TYPE(CSharpStringLiteral) \ 124 TYPE(CSharpNamedArgumentColon) \ 125 TYPE(CSharpNullable) \ 126 TYPE(CSharpNullConditionalLSquare) \ 127 TYPE(CSharpGenericTypeConstraint) \ 128 TYPE(CSharpGenericTypeConstraintColon) \ 129 TYPE(CSharpGenericTypeConstraintComma) \ 130 TYPE(Unknown) 131 132 /// Sorted operators that can follow a C variable. 133 static const std::vector<clang::tok::TokenKind> COperatorsFollowingVar = [] { 134 std::vector<clang::tok::TokenKind> ReturnVal = { 135 tok::l_square, tok::r_square, 136 tok::l_paren, tok::r_paren, 137 tok::r_brace, tok::period, 138 tok::ellipsis, tok::ampamp, 139 tok::ampequal, tok::star, 140 tok::starequal, tok::plus, 141 tok::plusplus, tok::plusequal, 142 tok::minus, tok::arrow, 143 tok::minusminus, tok::minusequal, 144 tok::exclaim, tok::exclaimequal, 145 tok::slash, tok::slashequal, 146 tok::percent, tok::percentequal, 147 tok::less, tok::lessless, 148 tok::lessequal, tok::lesslessequal, 149 tok::greater, tok::greatergreater, 150 tok::greaterequal, tok::greatergreaterequal, 151 tok::caret, tok::caretequal, 152 tok::pipe, tok::pipepipe, 153 tok::pipeequal, tok::question, 154 tok::semi, tok::equal, 155 tok::equalequal, tok::comma}; 156 assert(std::is_sorted(ReturnVal.begin(), ReturnVal.end())); 157 return ReturnVal; 158 }(); 159 160 /// Determines the semantic type of a syntactic token, e.g. whether "<" is a 161 /// template opener or binary operator. 162 enum TokenType : uint8_t { 163 #define TYPE(X) TT_##X, 164 LIST_TOKEN_TYPES 165 #undef TYPE 166 NUM_TOKEN_TYPES 167 }; 168 169 /// Determines the name of a token type. 170 const char *getTokenTypeName(TokenType Type); 171 172 // Represents what type of block a set of braces open. 173 enum BraceBlockKind { BK_Unknown, BK_Block, BK_BracedInit }; 174 175 // The packing kind of a function's parameters. 176 enum ParameterPackingKind { PPK_BinPacked, PPK_OnePerLine, PPK_Inconclusive }; 177 178 enum FormatDecision { FD_Unformatted, FD_Continue, FD_Break }; 179 180 /// Roles a token can take in a configured macro expansion. 181 enum MacroRole { 182 /// The token was expanded from a macro argument when formatting the expanded 183 /// token sequence. 184 MR_ExpandedArg, 185 /// The token is part of a macro argument that was previously formatted as 186 /// expansion when formatting the unexpanded macro call. 187 MR_UnexpandedArg, 188 /// The token was expanded from a macro definition, and is not visible as part 189 /// of the macro call. 190 MR_Hidden, 191 }; 192 193 struct FormatToken; 194 195 /// Contains information on the token's role in a macro expansion. 196 /// 197 /// Given the following definitions: 198 /// A(X) = [ X ] 199 /// B(X) = < X > 200 /// C(X) = X 201 /// 202 /// Consider the macro call: 203 /// A({B(C(C(x)))}) -> [{<x>}] 204 /// 205 /// In this case, the tokens of the unexpanded macro call will have the 206 /// following relevant entries in their macro context (note that formatting 207 /// the unexpanded macro call happens *after* formatting the expanded macro 208 /// call): 209 /// A( { B( C( C(x) ) ) } ) 210 /// Role: NN U NN NN NNUN N N U N (N=None, U=UnexpandedArg) 211 /// 212 /// [ { < x > } ] 213 /// Role: H E H E H E H (H=Hidden, E=ExpandedArg) 214 /// ExpandedFrom[0]: A A A A A A A 215 /// ExpandedFrom[1]: B B B 216 /// ExpandedFrom[2]: C 217 /// ExpandedFrom[3]: C 218 /// StartOfExpansion: 1 0 1 2 0 0 0 219 /// EndOfExpansion: 0 0 0 2 1 0 1 220 struct MacroExpansion { 221 MacroExpansion(MacroRole Role) : Role(Role) {} 222 223 /// The token's role in the macro expansion. 224 /// When formatting an expanded macro, all tokens that are part of macro 225 /// arguments will be MR_ExpandedArg, while all tokens that are not visible in 226 /// the macro call will be MR_Hidden. 227 /// When formatting an unexpanded macro call, all tokens that are part of 228 /// macro arguments will be MR_UnexpandedArg. 229 MacroRole Role; 230 231 /// The stack of macro call identifier tokens this token was expanded from. 232 llvm::SmallVector<FormatToken *, 1> ExpandedFrom; 233 234 /// The number of expansions of which this macro is the first entry. 235 unsigned StartOfExpansion = 0; 236 237 /// The number of currently open expansions in \c ExpandedFrom this macro is 238 /// the last token in. 239 unsigned EndOfExpansion = 0; 240 }; 241 242 class TokenRole; 243 class AnnotatedLine; 244 245 /// A wrapper around a \c Token storing information about the 246 /// whitespace characters preceding it. 247 struct FormatToken { 248 FormatToken() 249 : HasUnescapedNewline(false), IsMultiline(false), IsFirst(false), 250 MustBreakBefore(false), IsUnterminatedLiteral(false), 251 CanBreakBefore(false), ClosesTemplateDeclaration(false), 252 StartsBinaryExpression(false), EndsBinaryExpression(false), 253 PartOfMultiVariableDeclStmt(false), ContinuesLineCommentSection(false), 254 Finalized(false), ClosesRequiresClause(false), BlockKind(BK_Unknown), 255 Decision(FD_Unformatted), PackingKind(PPK_Inconclusive), 256 Type(TT_Unknown) {} 257 258 /// The \c Token. 259 Token Tok; 260 261 /// The raw text of the token. 262 /// 263 /// Contains the raw token text without leading whitespace and without leading 264 /// escaped newlines. 265 StringRef TokenText; 266 267 /// A token can have a special role that can carry extra information 268 /// about the token's formatting. 269 /// FIXME: Make FormatToken for parsing and AnnotatedToken two different 270 /// classes and make this a unique_ptr in the AnnotatedToken class. 271 std::shared_ptr<TokenRole> Role; 272 273 /// The range of the whitespace immediately preceding the \c Token. 274 SourceRange WhitespaceRange; 275 276 /// Whether there is at least one unescaped newline before the \c 277 /// Token. 278 unsigned HasUnescapedNewline : 1; 279 280 /// Whether the token text contains newlines (escaped or not). 281 unsigned IsMultiline : 1; 282 283 /// Indicates that this is the first token of the file. 284 unsigned IsFirst : 1; 285 286 /// Whether there must be a line break before this token. 287 /// 288 /// This happens for example when a preprocessor directive ended directly 289 /// before the token. 290 unsigned MustBreakBefore : 1; 291 292 /// Set to \c true if this token is an unterminated literal. 293 unsigned IsUnterminatedLiteral : 1; 294 295 /// \c true if it is allowed to break before this token. 296 unsigned CanBreakBefore : 1; 297 298 /// \c true if this is the ">" of "template<..>". 299 unsigned ClosesTemplateDeclaration : 1; 300 301 /// \c true if this token starts a binary expression, i.e. has at least 302 /// one fake l_paren with a precedence greater than prec::Unknown. 303 unsigned StartsBinaryExpression : 1; 304 /// \c true if this token ends a binary expression. 305 unsigned EndsBinaryExpression : 1; 306 307 /// Is this token part of a \c DeclStmt defining multiple variables? 308 /// 309 /// Only set if \c Type == \c TT_StartOfName. 310 unsigned PartOfMultiVariableDeclStmt : 1; 311 312 /// Does this line comment continue a line comment section? 313 /// 314 /// Only set to true if \c Type == \c TT_LineComment. 315 unsigned ContinuesLineCommentSection : 1; 316 317 /// If \c true, this token has been fully formatted (indented and 318 /// potentially re-formatted inside), and we do not allow further formatting 319 /// changes. 320 unsigned Finalized : 1; 321 322 /// \c true if this is the last token within requires clause. 323 unsigned ClosesRequiresClause : 1; 324 325 private: 326 /// Contains the kind of block if this token is a brace. 327 unsigned BlockKind : 2; 328 329 public: 330 BraceBlockKind getBlockKind() const { 331 return static_cast<BraceBlockKind>(BlockKind); 332 } 333 void setBlockKind(BraceBlockKind BBK) { 334 BlockKind = BBK; 335 assert(getBlockKind() == BBK && "BraceBlockKind overflow!"); 336 } 337 338 private: 339 /// Stores the formatting decision for the token once it was made. 340 unsigned Decision : 2; 341 342 public: 343 FormatDecision getDecision() const { 344 return static_cast<FormatDecision>(Decision); 345 } 346 void setDecision(FormatDecision D) { 347 Decision = D; 348 assert(getDecision() == D && "FormatDecision overflow!"); 349 } 350 351 private: 352 /// If this is an opening parenthesis, how are the parameters packed? 353 unsigned PackingKind : 2; 354 355 public: 356 ParameterPackingKind getPackingKind() const { 357 return static_cast<ParameterPackingKind>(PackingKind); 358 } 359 void setPackingKind(ParameterPackingKind K) { 360 PackingKind = K; 361 assert(getPackingKind() == K && "ParameterPackingKind overflow!"); 362 } 363 364 private: 365 TokenType Type; 366 367 public: 368 /// Returns the token's type, e.g. whether "<" is a template opener or 369 /// binary operator. 370 TokenType getType() const { return Type; } 371 void setType(TokenType T) { Type = T; } 372 373 /// The number of newlines immediately before the \c Token. 374 /// 375 /// This can be used to determine what the user wrote in the original code 376 /// and thereby e.g. leave an empty line between two function definitions. 377 unsigned NewlinesBefore = 0; 378 379 /// The offset just past the last '\n' in this token's leading 380 /// whitespace (relative to \c WhiteSpaceStart). 0 if there is no '\n'. 381 unsigned LastNewlineOffset = 0; 382 383 /// The width of the non-whitespace parts of the token (or its first 384 /// line for multi-line tokens) in columns. 385 /// We need this to correctly measure number of columns a token spans. 386 unsigned ColumnWidth = 0; 387 388 /// Contains the width in columns of the last line of a multi-line 389 /// token. 390 unsigned LastLineColumnWidth = 0; 391 392 /// The number of spaces that should be inserted before this token. 393 unsigned SpacesRequiredBefore = 0; 394 395 /// Number of parameters, if this is "(", "[" or "<". 396 unsigned ParameterCount = 0; 397 398 /// Number of parameters that are nested blocks, 399 /// if this is "(", "[" or "<". 400 unsigned BlockParameterCount = 0; 401 402 /// If this is a bracket ("<", "(", "[" or "{"), contains the kind of 403 /// the surrounding bracket. 404 tok::TokenKind ParentBracket = tok::unknown; 405 406 /// The total length of the unwrapped line up to and including this 407 /// token. 408 unsigned TotalLength = 0; 409 410 /// The original 0-based column of this token, including expanded tabs. 411 /// The configured TabWidth is used as tab width. 412 unsigned OriginalColumn = 0; 413 414 /// The length of following tokens until the next natural split point, 415 /// or the next token that can be broken. 416 unsigned UnbreakableTailLength = 0; 417 418 // FIXME: Come up with a 'cleaner' concept. 419 /// The binding strength of a token. This is a combined value of 420 /// operator precedence, parenthesis nesting, etc. 421 unsigned BindingStrength = 0; 422 423 /// The nesting level of this token, i.e. the number of surrounding (), 424 /// [], {} or <>. 425 unsigned NestingLevel = 0; 426 427 /// The indent level of this token. Copied from the surrounding line. 428 unsigned IndentLevel = 0; 429 430 /// Penalty for inserting a line break before this token. 431 unsigned SplitPenalty = 0; 432 433 /// If this is the first ObjC selector name in an ObjC method 434 /// definition or call, this contains the length of the longest name. 435 /// 436 /// This being set to 0 means that the selectors should not be colon-aligned, 437 /// e.g. because several of them are block-type. 438 unsigned LongestObjCSelectorName = 0; 439 440 /// If this is the first ObjC selector name in an ObjC method 441 /// definition or call, this contains the number of parts that the whole 442 /// selector consist of. 443 unsigned ObjCSelectorNameParts = 0; 444 445 /// The 0-based index of the parameter/argument. For ObjC it is set 446 /// for the selector name token. 447 /// For now calculated only for ObjC. 448 unsigned ParameterIndex = 0; 449 450 /// Stores the number of required fake parentheses and the 451 /// corresponding operator precedence. 452 /// 453 /// If multiple fake parentheses start at a token, this vector stores them in 454 /// reverse order, i.e. inner fake parenthesis first. 455 SmallVector<prec::Level, 4> FakeLParens; 456 /// Insert this many fake ) after this token for correct indentation. 457 unsigned FakeRParens = 0; 458 459 /// If this is an operator (or "."/"->") in a sequence of operators 460 /// with the same precedence, contains the 0-based operator index. 461 unsigned OperatorIndex = 0; 462 463 /// If this is an operator (or "."/"->") in a sequence of operators 464 /// with the same precedence, points to the next operator. 465 FormatToken *NextOperator = nullptr; 466 467 /// If this is a bracket, this points to the matching one. 468 FormatToken *MatchingParen = nullptr; 469 470 /// The previous token in the unwrapped line. 471 FormatToken *Previous = nullptr; 472 473 /// The next token in the unwrapped line. 474 FormatToken *Next = nullptr; 475 476 /// The first token in set of column elements. 477 bool StartsColumn = false; 478 479 /// This notes the start of the line of an array initializer. 480 bool ArrayInitializerLineStart = false; 481 482 /// This starts an array initializer. 483 bool IsArrayInitializer = false; 484 485 /// Is optional and can be removed. 486 bool Optional = false; 487 488 /// If this token starts a block, this contains all the unwrapped lines 489 /// in it. 490 SmallVector<AnnotatedLine *, 1> Children; 491 492 // Contains all attributes related to how this token takes part 493 // in a configured macro expansion. 494 llvm::Optional<MacroExpansion> MacroCtx; 495 496 bool is(tok::TokenKind Kind) const { return Tok.is(Kind); } 497 bool is(TokenType TT) const { return getType() == TT; } 498 bool is(const IdentifierInfo *II) const { 499 return II && II == Tok.getIdentifierInfo(); 500 } 501 bool is(tok::PPKeywordKind Kind) const { 502 return Tok.getIdentifierInfo() && 503 Tok.getIdentifierInfo()->getPPKeywordID() == Kind; 504 } 505 bool is(BraceBlockKind BBK) const { return getBlockKind() == BBK; } 506 bool is(ParameterPackingKind PPK) const { return getPackingKind() == PPK; } 507 508 template <typename A, typename B> bool isOneOf(A K1, B K2) const { 509 return is(K1) || is(K2); 510 } 511 template <typename A, typename B, typename... Ts> 512 bool isOneOf(A K1, B K2, Ts... Ks) const { 513 return is(K1) || isOneOf(K2, Ks...); 514 } 515 template <typename T> bool isNot(T Kind) const { return !is(Kind); } 516 517 bool isIf(bool AllowConstexprMacro = true) const { 518 return is(tok::kw_if) || endsSequence(tok::kw_constexpr, tok::kw_if) || 519 (endsSequence(tok::identifier, tok::kw_if) && AllowConstexprMacro); 520 } 521 522 bool closesScopeAfterBlock() const { 523 if (getBlockKind() == BK_Block) 524 return true; 525 if (closesScope()) 526 return Previous->closesScopeAfterBlock(); 527 return false; 528 } 529 530 /// \c true if this token starts a sequence with the given tokens in order, 531 /// following the ``Next`` pointers, ignoring comments. 532 template <typename A, typename... Ts> 533 bool startsSequence(A K1, Ts... Tokens) const { 534 return startsSequenceInternal(K1, Tokens...); 535 } 536 537 /// \c true if this token ends a sequence with the given tokens in order, 538 /// following the ``Previous`` pointers, ignoring comments. 539 /// For example, given tokens [T1, T2, T3], the function returns true if 540 /// 3 tokens ending at this (ignoring comments) are [T3, T2, T1]. In other 541 /// words, the tokens passed to this function need to the reverse of the 542 /// order the tokens appear in code. 543 template <typename A, typename... Ts> 544 bool endsSequence(A K1, Ts... Tokens) const { 545 return endsSequenceInternal(K1, Tokens...); 546 } 547 548 bool isStringLiteral() const { return tok::isStringLiteral(Tok.getKind()); } 549 550 bool isObjCAtKeyword(tok::ObjCKeywordKind Kind) const { 551 return Tok.isObjCAtKeyword(Kind); 552 } 553 554 bool isAccessSpecifier(bool ColonRequired = true) const { 555 return isOneOf(tok::kw_public, tok::kw_protected, tok::kw_private) && 556 (!ColonRequired || (Next && Next->is(tok::colon))); 557 } 558 559 bool canBePointerOrReferenceQualifier() const { 560 return isOneOf(tok::kw_const, tok::kw_restrict, tok::kw_volatile, 561 tok::kw___attribute, tok::kw__Nonnull, tok::kw__Nullable, 562 tok::kw__Null_unspecified, tok::kw___ptr32, tok::kw___ptr64, 563 TT_AttributeMacro); 564 } 565 566 /// Determine whether the token is a simple-type-specifier. 567 LLVM_NODISCARD bool isSimpleTypeSpecifier() const; 568 569 LLVM_NODISCARD bool isTypeOrIdentifier() const; 570 571 bool isObjCAccessSpecifier() const { 572 return is(tok::at) && Next && 573 (Next->isObjCAtKeyword(tok::objc_public) || 574 Next->isObjCAtKeyword(tok::objc_protected) || 575 Next->isObjCAtKeyword(tok::objc_package) || 576 Next->isObjCAtKeyword(tok::objc_private)); 577 } 578 579 /// Returns whether \p Tok is ([{ or an opening < of a template or in 580 /// protos. 581 bool opensScope() const { 582 if (is(TT_TemplateString) && TokenText.endswith("${")) 583 return true; 584 if (is(TT_DictLiteral) && is(tok::less)) 585 return true; 586 return isOneOf(tok::l_paren, tok::l_brace, tok::l_square, 587 TT_TemplateOpener); 588 } 589 /// Returns whether \p Tok is )]} or a closing > of a template or in 590 /// protos. 591 bool closesScope() const { 592 if (is(TT_TemplateString) && TokenText.startswith("}")) 593 return true; 594 if (is(TT_DictLiteral) && is(tok::greater)) 595 return true; 596 return isOneOf(tok::r_paren, tok::r_brace, tok::r_square, 597 TT_TemplateCloser); 598 } 599 600 /// Returns \c true if this is a "." or "->" accessing a member. 601 bool isMemberAccess() const { 602 return isOneOf(tok::arrow, tok::period, tok::arrowstar) && 603 !isOneOf(TT_DesignatedInitializerPeriod, TT_TrailingReturnArrow, 604 TT_LambdaArrow, TT_LeadingJavaAnnotation); 605 } 606 607 bool isUnaryOperator() const { 608 switch (Tok.getKind()) { 609 case tok::plus: 610 case tok::plusplus: 611 case tok::minus: 612 case tok::minusminus: 613 case tok::exclaim: 614 case tok::tilde: 615 case tok::kw_sizeof: 616 case tok::kw_alignof: 617 return true; 618 default: 619 return false; 620 } 621 } 622 623 bool isBinaryOperator() const { 624 // Comma is a binary operator, but does not behave as such wrt. formatting. 625 return getPrecedence() > prec::Comma; 626 } 627 628 bool isTrailingComment() const { 629 return is(tok::comment) && 630 (is(TT_LineComment) || !Next || Next->NewlinesBefore > 0); 631 } 632 633 /// Returns \c true if this is a keyword that can be used 634 /// like a function call (e.g. sizeof, typeid, ...). 635 bool isFunctionLikeKeyword() const { 636 switch (Tok.getKind()) { 637 case tok::kw_throw: 638 case tok::kw_typeid: 639 case tok::kw_return: 640 case tok::kw_sizeof: 641 case tok::kw_alignof: 642 case tok::kw_alignas: 643 case tok::kw_decltype: 644 case tok::kw_noexcept: 645 case tok::kw_static_assert: 646 case tok::kw__Atomic: 647 case tok::kw___attribute: 648 case tok::kw___underlying_type: 649 case tok::kw_requires: 650 return true; 651 default: 652 return false; 653 } 654 } 655 656 /// Returns \c true if this is a string literal that's like a label, 657 /// e.g. ends with "=" or ":". 658 bool isLabelString() const { 659 if (!is(tok::string_literal)) 660 return false; 661 StringRef Content = TokenText; 662 if (Content.startswith("\"") || Content.startswith("'")) 663 Content = Content.drop_front(1); 664 if (Content.endswith("\"") || Content.endswith("'")) 665 Content = Content.drop_back(1); 666 Content = Content.trim(); 667 return Content.size() > 1 && 668 (Content.back() == ':' || Content.back() == '='); 669 } 670 671 /// Returns actual token start location without leading escaped 672 /// newlines and whitespace. 673 /// 674 /// This can be different to Tok.getLocation(), which includes leading escaped 675 /// newlines. 676 SourceLocation getStartOfNonWhitespace() const { 677 return WhitespaceRange.getEnd(); 678 } 679 680 /// Returns \c true if the range of whitespace immediately preceding the \c 681 /// Token is not empty. 682 bool hasWhitespaceBefore() const { 683 return WhitespaceRange.getBegin() != WhitespaceRange.getEnd(); 684 } 685 686 prec::Level getPrecedence() const { 687 return getBinOpPrecedence(Tok.getKind(), /*GreaterThanIsOperator=*/true, 688 /*CPlusPlus11=*/true); 689 } 690 691 /// Returns the previous token ignoring comments. 692 FormatToken *getPreviousNonComment() const { 693 FormatToken *Tok = Previous; 694 while (Tok && Tok->is(tok::comment)) 695 Tok = Tok->Previous; 696 return Tok; 697 } 698 699 /// Returns the next token ignoring comments. 700 LLVM_NODISCARD const FormatToken *getNextNonComment() const { 701 const FormatToken *Tok = Next; 702 while (Tok && Tok->is(tok::comment)) 703 Tok = Tok->Next; 704 return Tok; 705 } 706 707 /// Returns \c true if this tokens starts a block-type list, i.e. a 708 /// list that should be indented with a block indent. 709 LLVM_NODISCARD bool opensBlockOrBlockTypeList(const FormatStyle &Style) const; 710 711 /// Returns whether the token is the left square bracket of a C++ 712 /// structured binding declaration. 713 bool isCppStructuredBinding(const FormatStyle &Style) const { 714 if (!Style.isCpp() || isNot(tok::l_square)) 715 return false; 716 const FormatToken *T = this; 717 do { 718 T = T->getPreviousNonComment(); 719 } while (T && T->isOneOf(tok::kw_const, tok::kw_volatile, tok::amp, 720 tok::ampamp)); 721 return T && T->is(tok::kw_auto); 722 } 723 724 /// Same as opensBlockOrBlockTypeList, but for the closing token. 725 bool closesBlockOrBlockTypeList(const FormatStyle &Style) const { 726 if (is(TT_TemplateString) && closesScope()) 727 return true; 728 return MatchingParen && MatchingParen->opensBlockOrBlockTypeList(Style); 729 } 730 731 /// Return the actual namespace token, if this token starts a namespace 732 /// block. 733 const FormatToken *getNamespaceToken() const { 734 const FormatToken *NamespaceTok = this; 735 if (is(tok::comment)) 736 NamespaceTok = NamespaceTok->getNextNonComment(); 737 // Detect "(inline|export)? namespace" in the beginning of a line. 738 if (NamespaceTok && NamespaceTok->isOneOf(tok::kw_inline, tok::kw_export)) 739 NamespaceTok = NamespaceTok->getNextNonComment(); 740 return NamespaceTok && 741 NamespaceTok->isOneOf(tok::kw_namespace, TT_NamespaceMacro) 742 ? NamespaceTok 743 : nullptr; 744 } 745 746 void copyFrom(const FormatToken &Tok) { *this = Tok; } 747 748 private: 749 // Only allow copying via the explicit copyFrom method. 750 FormatToken(const FormatToken &) = delete; 751 FormatToken &operator=(const FormatToken &) = default; 752 753 template <typename A, typename... Ts> 754 bool startsSequenceInternal(A K1, Ts... Tokens) const { 755 if (is(tok::comment) && Next) 756 return Next->startsSequenceInternal(K1, Tokens...); 757 return is(K1) && Next && Next->startsSequenceInternal(Tokens...); 758 } 759 760 template <typename A> bool startsSequenceInternal(A K1) const { 761 if (is(tok::comment) && Next) 762 return Next->startsSequenceInternal(K1); 763 return is(K1); 764 } 765 766 template <typename A, typename... Ts> bool endsSequenceInternal(A K1) const { 767 if (is(tok::comment) && Previous) 768 return Previous->endsSequenceInternal(K1); 769 return is(K1); 770 } 771 772 template <typename A, typename... Ts> 773 bool endsSequenceInternal(A K1, Ts... Tokens) const { 774 if (is(tok::comment) && Previous) 775 return Previous->endsSequenceInternal(K1, Tokens...); 776 return is(K1) && Previous && Previous->endsSequenceInternal(Tokens...); 777 } 778 }; 779 780 class ContinuationIndenter; 781 struct LineState; 782 783 class TokenRole { 784 public: 785 TokenRole(const FormatStyle &Style) : Style(Style) {} 786 virtual ~TokenRole(); 787 788 /// After the \c TokenAnnotator has finished annotating all the tokens, 789 /// this function precomputes required information for formatting. 790 virtual void precomputeFormattingInfos(const FormatToken *Token); 791 792 /// Apply the special formatting that the given role demands. 793 /// 794 /// Assumes that the token having this role is already formatted. 795 /// 796 /// Continues formatting from \p State leaving indentation to \p Indenter and 797 /// returns the total penalty that this formatting incurs. 798 virtual unsigned formatFromToken(LineState &State, 799 ContinuationIndenter *Indenter, 800 bool DryRun) { 801 return 0; 802 } 803 804 /// Same as \c formatFromToken, but assumes that the first token has 805 /// already been set thereby deciding on the first line break. 806 virtual unsigned formatAfterToken(LineState &State, 807 ContinuationIndenter *Indenter, 808 bool DryRun) { 809 return 0; 810 } 811 812 /// Notifies the \c Role that a comma was found. 813 virtual void CommaFound(const FormatToken *Token) {} 814 815 virtual const FormatToken *lastComma() { return nullptr; } 816 817 protected: 818 const FormatStyle &Style; 819 }; 820 821 class CommaSeparatedList : public TokenRole { 822 public: 823 CommaSeparatedList(const FormatStyle &Style) 824 : TokenRole(Style), HasNestedBracedList(false) {} 825 826 void precomputeFormattingInfos(const FormatToken *Token) override; 827 828 unsigned formatAfterToken(LineState &State, ContinuationIndenter *Indenter, 829 bool DryRun) override; 830 831 unsigned formatFromToken(LineState &State, ContinuationIndenter *Indenter, 832 bool DryRun) override; 833 834 /// Adds \p Token as the next comma to the \c CommaSeparated list. 835 void CommaFound(const FormatToken *Token) override { 836 Commas.push_back(Token); 837 } 838 839 const FormatToken *lastComma() override { 840 if (Commas.empty()) 841 return nullptr; 842 return Commas.back(); 843 } 844 845 private: 846 /// A struct that holds information on how to format a given list with 847 /// a specific number of columns. 848 struct ColumnFormat { 849 /// The number of columns to use. 850 unsigned Columns; 851 852 /// The total width in characters. 853 unsigned TotalWidth; 854 855 /// The number of lines required for this format. 856 unsigned LineCount; 857 858 /// The size of each column in characters. 859 SmallVector<unsigned, 8> ColumnSizes; 860 }; 861 862 /// Calculate which \c ColumnFormat fits best into 863 /// \p RemainingCharacters. 864 const ColumnFormat *getColumnFormat(unsigned RemainingCharacters) const; 865 866 /// The ordered \c FormatTokens making up the commas of this list. 867 SmallVector<const FormatToken *, 8> Commas; 868 869 /// The length of each of the list's items in characters including the 870 /// trailing comma. 871 SmallVector<unsigned, 8> ItemLengths; 872 873 /// Precomputed formats that can be used for this list. 874 SmallVector<ColumnFormat, 4> Formats; 875 876 bool HasNestedBracedList; 877 }; 878 879 /// Encapsulates keywords that are context sensitive or for languages not 880 /// properly supported by Clang's lexer. 881 struct AdditionalKeywords { 882 AdditionalKeywords(IdentifierTable &IdentTable) { 883 kw_final = &IdentTable.get("final"); 884 kw_override = &IdentTable.get("override"); 885 kw_in = &IdentTable.get("in"); 886 kw_of = &IdentTable.get("of"); 887 kw_CF_CLOSED_ENUM = &IdentTable.get("CF_CLOSED_ENUM"); 888 kw_CF_ENUM = &IdentTable.get("CF_ENUM"); 889 kw_CF_OPTIONS = &IdentTable.get("CF_OPTIONS"); 890 kw_NS_CLOSED_ENUM = &IdentTable.get("NS_CLOSED_ENUM"); 891 kw_NS_ENUM = &IdentTable.get("NS_ENUM"); 892 kw_NS_OPTIONS = &IdentTable.get("NS_OPTIONS"); 893 894 kw_as = &IdentTable.get("as"); 895 kw_async = &IdentTable.get("async"); 896 kw_await = &IdentTable.get("await"); 897 kw_declare = &IdentTable.get("declare"); 898 kw_finally = &IdentTable.get("finally"); 899 kw_from = &IdentTable.get("from"); 900 kw_function = &IdentTable.get("function"); 901 kw_get = &IdentTable.get("get"); 902 kw_import = &IdentTable.get("import"); 903 kw_infer = &IdentTable.get("infer"); 904 kw_is = &IdentTable.get("is"); 905 kw_let = &IdentTable.get("let"); 906 kw_module = &IdentTable.get("module"); 907 kw_readonly = &IdentTable.get("readonly"); 908 kw_set = &IdentTable.get("set"); 909 kw_type = &IdentTable.get("type"); 910 kw_typeof = &IdentTable.get("typeof"); 911 kw_var = &IdentTable.get("var"); 912 kw_yield = &IdentTable.get("yield"); 913 914 kw_abstract = &IdentTable.get("abstract"); 915 kw_assert = &IdentTable.get("assert"); 916 kw_extends = &IdentTable.get("extends"); 917 kw_implements = &IdentTable.get("implements"); 918 kw_instanceof = &IdentTable.get("instanceof"); 919 kw_interface = &IdentTable.get("interface"); 920 kw_native = &IdentTable.get("native"); 921 kw_package = &IdentTable.get("package"); 922 kw_synchronized = &IdentTable.get("synchronized"); 923 kw_throws = &IdentTable.get("throws"); 924 kw___except = &IdentTable.get("__except"); 925 kw___has_include = &IdentTable.get("__has_include"); 926 kw___has_include_next = &IdentTable.get("__has_include_next"); 927 928 kw_mark = &IdentTable.get("mark"); 929 930 kw_extend = &IdentTable.get("extend"); 931 kw_option = &IdentTable.get("option"); 932 kw_optional = &IdentTable.get("optional"); 933 kw_repeated = &IdentTable.get("repeated"); 934 kw_required = &IdentTable.get("required"); 935 kw_returns = &IdentTable.get("returns"); 936 937 kw_signals = &IdentTable.get("signals"); 938 kw_qsignals = &IdentTable.get("Q_SIGNALS"); 939 kw_slots = &IdentTable.get("slots"); 940 kw_qslots = &IdentTable.get("Q_SLOTS"); 941 942 // C# keywords 943 kw_dollar = &IdentTable.get("dollar"); 944 kw_base = &IdentTable.get("base"); 945 kw_byte = &IdentTable.get("byte"); 946 kw_checked = &IdentTable.get("checked"); 947 kw_decimal = &IdentTable.get("decimal"); 948 kw_delegate = &IdentTable.get("delegate"); 949 kw_event = &IdentTable.get("event"); 950 kw_fixed = &IdentTable.get("fixed"); 951 kw_foreach = &IdentTable.get("foreach"); 952 kw_implicit = &IdentTable.get("implicit"); 953 kw_internal = &IdentTable.get("internal"); 954 kw_lock = &IdentTable.get("lock"); 955 kw_null = &IdentTable.get("null"); 956 kw_object = &IdentTable.get("object"); 957 kw_out = &IdentTable.get("out"); 958 kw_params = &IdentTable.get("params"); 959 kw_ref = &IdentTable.get("ref"); 960 kw_string = &IdentTable.get("string"); 961 kw_stackalloc = &IdentTable.get("stackalloc"); 962 kw_sbyte = &IdentTable.get("sbyte"); 963 kw_sealed = &IdentTable.get("sealed"); 964 kw_uint = &IdentTable.get("uint"); 965 kw_ulong = &IdentTable.get("ulong"); 966 kw_unchecked = &IdentTable.get("unchecked"); 967 kw_unsafe = &IdentTable.get("unsafe"); 968 kw_ushort = &IdentTable.get("ushort"); 969 kw_when = &IdentTable.get("when"); 970 kw_where = &IdentTable.get("where"); 971 972 // Keep this at the end of the constructor to make sure everything here 973 // is 974 // already initialized. 975 JsExtraKeywords = std::unordered_set<IdentifierInfo *>( 976 {kw_as, kw_async, kw_await, kw_declare, kw_finally, kw_from, 977 kw_function, kw_get, kw_import, kw_is, kw_let, kw_module, kw_override, 978 kw_readonly, kw_set, kw_type, kw_typeof, kw_var, kw_yield, 979 // Keywords from the Java section. 980 kw_abstract, kw_extends, kw_implements, kw_instanceof, kw_interface}); 981 982 CSharpExtraKeywords = std::unordered_set<IdentifierInfo *>( 983 {kw_base, kw_byte, kw_checked, kw_decimal, kw_delegate, kw_event, 984 kw_fixed, kw_foreach, kw_implicit, kw_in, kw_interface, kw_internal, 985 kw_is, kw_lock, kw_null, kw_object, kw_out, kw_override, kw_params, 986 kw_readonly, kw_ref, kw_string, kw_stackalloc, kw_sbyte, kw_sealed, 987 kw_uint, kw_ulong, kw_unchecked, kw_unsafe, kw_ushort, kw_when, 988 kw_where, 989 // Keywords from the JavaScript section. 990 kw_as, kw_async, kw_await, kw_declare, kw_finally, kw_from, 991 kw_function, kw_get, kw_import, kw_is, kw_let, kw_module, kw_readonly, 992 kw_set, kw_type, kw_typeof, kw_var, kw_yield, 993 // Keywords from the Java section. 994 kw_abstract, kw_extends, kw_implements, kw_instanceof, kw_interface}); 995 } 996 997 // Context sensitive keywords. 998 IdentifierInfo *kw_final; 999 IdentifierInfo *kw_override; 1000 IdentifierInfo *kw_in; 1001 IdentifierInfo *kw_of; 1002 IdentifierInfo *kw_CF_CLOSED_ENUM; 1003 IdentifierInfo *kw_CF_ENUM; 1004 IdentifierInfo *kw_CF_OPTIONS; 1005 IdentifierInfo *kw_NS_CLOSED_ENUM; 1006 IdentifierInfo *kw_NS_ENUM; 1007 IdentifierInfo *kw_NS_OPTIONS; 1008 IdentifierInfo *kw___except; 1009 IdentifierInfo *kw___has_include; 1010 IdentifierInfo *kw___has_include_next; 1011 1012 // JavaScript keywords. 1013 IdentifierInfo *kw_as; 1014 IdentifierInfo *kw_async; 1015 IdentifierInfo *kw_await; 1016 IdentifierInfo *kw_declare; 1017 IdentifierInfo *kw_finally; 1018 IdentifierInfo *kw_from; 1019 IdentifierInfo *kw_function; 1020 IdentifierInfo *kw_get; 1021 IdentifierInfo *kw_import; 1022 IdentifierInfo *kw_infer; 1023 IdentifierInfo *kw_is; 1024 IdentifierInfo *kw_let; 1025 IdentifierInfo *kw_module; 1026 IdentifierInfo *kw_readonly; 1027 IdentifierInfo *kw_set; 1028 IdentifierInfo *kw_type; 1029 IdentifierInfo *kw_typeof; 1030 IdentifierInfo *kw_var; 1031 IdentifierInfo *kw_yield; 1032 1033 // Java keywords. 1034 IdentifierInfo *kw_abstract; 1035 IdentifierInfo *kw_assert; 1036 IdentifierInfo *kw_extends; 1037 IdentifierInfo *kw_implements; 1038 IdentifierInfo *kw_instanceof; 1039 IdentifierInfo *kw_interface; 1040 IdentifierInfo *kw_native; 1041 IdentifierInfo *kw_package; 1042 IdentifierInfo *kw_synchronized; 1043 IdentifierInfo *kw_throws; 1044 1045 // Pragma keywords. 1046 IdentifierInfo *kw_mark; 1047 1048 // Proto keywords. 1049 IdentifierInfo *kw_extend; 1050 IdentifierInfo *kw_option; 1051 IdentifierInfo *kw_optional; 1052 IdentifierInfo *kw_repeated; 1053 IdentifierInfo *kw_required; 1054 IdentifierInfo *kw_returns; 1055 1056 // QT keywords. 1057 IdentifierInfo *kw_signals; 1058 IdentifierInfo *kw_qsignals; 1059 IdentifierInfo *kw_slots; 1060 IdentifierInfo *kw_qslots; 1061 1062 // C# keywords 1063 IdentifierInfo *kw_dollar; 1064 IdentifierInfo *kw_base; 1065 IdentifierInfo *kw_byte; 1066 IdentifierInfo *kw_checked; 1067 IdentifierInfo *kw_decimal; 1068 IdentifierInfo *kw_delegate; 1069 IdentifierInfo *kw_event; 1070 IdentifierInfo *kw_fixed; 1071 IdentifierInfo *kw_foreach; 1072 IdentifierInfo *kw_implicit; 1073 IdentifierInfo *kw_internal; 1074 1075 IdentifierInfo *kw_lock; 1076 IdentifierInfo *kw_null; 1077 IdentifierInfo *kw_object; 1078 IdentifierInfo *kw_out; 1079 1080 IdentifierInfo *kw_params; 1081 1082 IdentifierInfo *kw_ref; 1083 IdentifierInfo *kw_string; 1084 IdentifierInfo *kw_stackalloc; 1085 IdentifierInfo *kw_sbyte; 1086 IdentifierInfo *kw_sealed; 1087 IdentifierInfo *kw_uint; 1088 IdentifierInfo *kw_ulong; 1089 IdentifierInfo *kw_unchecked; 1090 IdentifierInfo *kw_unsafe; 1091 IdentifierInfo *kw_ushort; 1092 IdentifierInfo *kw_when; 1093 IdentifierInfo *kw_where; 1094 1095 /// Returns \c true if \p Tok is a true JavaScript identifier, returns 1096 /// \c false if it is a keyword or a pseudo keyword. 1097 /// If \c AcceptIdentifierName is true, returns true not only for keywords, 1098 // but also for IdentifierName tokens (aka pseudo-keywords), such as 1099 // ``yield``. 1100 bool IsJavaScriptIdentifier(const FormatToken &Tok, 1101 bool AcceptIdentifierName = true) const { 1102 // Based on the list of JavaScript & TypeScript keywords here: 1103 // https://github.com/microsoft/TypeScript/blob/main/src/compiler/scanner.ts#L74 1104 switch (Tok.Tok.getKind()) { 1105 case tok::kw_break: 1106 case tok::kw_case: 1107 case tok::kw_catch: 1108 case tok::kw_class: 1109 case tok::kw_continue: 1110 case tok::kw_const: 1111 case tok::kw_default: 1112 case tok::kw_delete: 1113 case tok::kw_do: 1114 case tok::kw_else: 1115 case tok::kw_enum: 1116 case tok::kw_export: 1117 case tok::kw_false: 1118 case tok::kw_for: 1119 case tok::kw_if: 1120 case tok::kw_import: 1121 case tok::kw_module: 1122 case tok::kw_new: 1123 case tok::kw_private: 1124 case tok::kw_protected: 1125 case tok::kw_public: 1126 case tok::kw_return: 1127 case tok::kw_static: 1128 case tok::kw_switch: 1129 case tok::kw_this: 1130 case tok::kw_throw: 1131 case tok::kw_true: 1132 case tok::kw_try: 1133 case tok::kw_typeof: 1134 case tok::kw_void: 1135 case tok::kw_while: 1136 // These are JS keywords that are lexed by LLVM/clang as keywords. 1137 return false; 1138 case tok::identifier: { 1139 // For identifiers, make sure they are true identifiers, excluding the 1140 // JavaScript pseudo-keywords (not lexed by LLVM/clang as keywords). 1141 bool IsPseudoKeyword = 1142 JsExtraKeywords.find(Tok.Tok.getIdentifierInfo()) != 1143 JsExtraKeywords.end(); 1144 return AcceptIdentifierName || !IsPseudoKeyword; 1145 } 1146 default: 1147 // Other keywords are handled in the switch below, to avoid problems due 1148 // to duplicate case labels when using the #include trick. 1149 break; 1150 } 1151 1152 switch (Tok.Tok.getKind()) { 1153 // Handle C++ keywords not included above: these are all JS identifiers. 1154 #define KEYWORD(X, Y) case tok::kw_##X: 1155 #include "clang/Basic/TokenKinds.def" 1156 // #undef KEYWORD is not needed -- it's #undef-ed at the end of 1157 // TokenKinds.def 1158 return true; 1159 default: 1160 // All other tokens (punctuation etc) are not JS identifiers. 1161 return false; 1162 } 1163 } 1164 1165 /// Returns \c true if \p Tok is a C# keyword, returns 1166 /// \c false if it is a anything else. 1167 bool isCSharpKeyword(const FormatToken &Tok) const { 1168 switch (Tok.Tok.getKind()) { 1169 case tok::kw_bool: 1170 case tok::kw_break: 1171 case tok::kw_case: 1172 case tok::kw_catch: 1173 case tok::kw_char: 1174 case tok::kw_class: 1175 case tok::kw_const: 1176 case tok::kw_continue: 1177 case tok::kw_default: 1178 case tok::kw_do: 1179 case tok::kw_double: 1180 case tok::kw_else: 1181 case tok::kw_enum: 1182 case tok::kw_explicit: 1183 case tok::kw_extern: 1184 case tok::kw_false: 1185 case tok::kw_float: 1186 case tok::kw_for: 1187 case tok::kw_goto: 1188 case tok::kw_if: 1189 case tok::kw_int: 1190 case tok::kw_long: 1191 case tok::kw_namespace: 1192 case tok::kw_new: 1193 case tok::kw_operator: 1194 case tok::kw_private: 1195 case tok::kw_protected: 1196 case tok::kw_public: 1197 case tok::kw_return: 1198 case tok::kw_short: 1199 case tok::kw_sizeof: 1200 case tok::kw_static: 1201 case tok::kw_struct: 1202 case tok::kw_switch: 1203 case tok::kw_this: 1204 case tok::kw_throw: 1205 case tok::kw_true: 1206 case tok::kw_try: 1207 case tok::kw_typeof: 1208 case tok::kw_using: 1209 case tok::kw_virtual: 1210 case tok::kw_void: 1211 case tok::kw_volatile: 1212 case tok::kw_while: 1213 return true; 1214 default: 1215 return Tok.is(tok::identifier) && 1216 CSharpExtraKeywords.find(Tok.Tok.getIdentifierInfo()) == 1217 CSharpExtraKeywords.end(); 1218 } 1219 } 1220 1221 private: 1222 /// The JavaScript keywords beyond the C++ keyword set. 1223 std::unordered_set<IdentifierInfo *> JsExtraKeywords; 1224 1225 /// The C# keywords beyond the C++ keyword set 1226 std::unordered_set<IdentifierInfo *> CSharpExtraKeywords; 1227 }; 1228 1229 } // namespace format 1230 } // namespace clang 1231 1232 #endif 1233