1 | //===- Stmt.h - Classes for representing statements -------------*- 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 | // This file defines the Stmt interface and subclasses. |
10 | // |
11 | //===----------------------------------------------------------------------===// |
12 | |
13 | #ifndef LLVM_CLANG_AST_STMT_H |
14 | #define LLVM_CLANG_AST_STMT_H |
15 | |
16 | #include "clang/AST/APValue.h" |
17 | #include "clang/AST/DeclGroup.h" |
18 | #include "clang/AST/DependenceFlags.h" |
19 | #include "clang/AST/OperationKinds.h" |
20 | #include "clang/AST/StmtIterator.h" |
21 | #include "clang/Basic/CapturedStmt.h" |
22 | #include "clang/Basic/ExpressionTraits.h" |
23 | #include "clang/Basic/IdentifierTable.h" |
24 | #include "clang/Basic/LLVM.h" |
25 | #include "clang/Basic/Lambda.h" |
26 | #include "clang/Basic/LangOptions.h" |
27 | #include "clang/Basic/OperatorKinds.h" |
28 | #include "clang/Basic/SourceLocation.h" |
29 | #include "clang/Basic/Specifiers.h" |
30 | #include "clang/Basic/TypeTraits.h" |
31 | #include "llvm/ADT/APFloat.h" |
32 | #include "llvm/ADT/ArrayRef.h" |
33 | #include "llvm/ADT/BitmaskEnum.h" |
34 | #include "llvm/ADT/PointerIntPair.h" |
35 | #include "llvm/ADT/StringRef.h" |
36 | #include "llvm/ADT/iterator.h" |
37 | #include "llvm/ADT/iterator_range.h" |
38 | #include "llvm/Support/Casting.h" |
39 | #include "llvm/Support/Compiler.h" |
40 | #include "llvm/Support/ErrorHandling.h" |
41 | #include <algorithm> |
42 | #include <cassert> |
43 | #include <cstddef> |
44 | #include <iterator> |
45 | #include <optional> |
46 | #include <string> |
47 | |
48 | namespace llvm { |
49 | |
50 | class FoldingSetNodeID; |
51 | |
52 | } // namespace llvm |
53 | |
54 | namespace clang { |
55 | |
56 | class ASTContext; |
57 | class Attr; |
58 | class CapturedDecl; |
59 | class Decl; |
60 | class Expr; |
61 | class AddrLabelExpr; |
62 | class LabelDecl; |
63 | class ODRHash; |
64 | class PrinterHelper; |
65 | struct PrintingPolicy; |
66 | class RecordDecl; |
67 | class SourceManager; |
68 | class StringLiteral; |
69 | class Token; |
70 | class VarDecl; |
71 | enum class CharacterLiteralKind; |
72 | enum class ConstantResultStorageKind; |
73 | enum class CXXConstructionKind; |
74 | enum class CXXNewInitializationStyle; |
75 | enum class PredefinedIdentKind; |
76 | enum class SourceLocIdentKind; |
77 | enum class StringLiteralKind; |
78 | |
79 | //===----------------------------------------------------------------------===// |
80 | // AST classes for statements. |
81 | //===----------------------------------------------------------------------===// |
82 | |
83 | /// Stmt - This represents one statement. |
84 | /// |
85 | class alignas(void *) Stmt { |
86 | public: |
87 | enum StmtClass { |
88 | NoStmtClass = 0, |
89 | #define STMT(CLASS, PARENT) CLASS##Class, |
90 | #define STMT_RANGE(BASE, FIRST, LAST) \ |
91 | first##BASE##Constant=FIRST##Class, last##BASE##Constant=LAST##Class, |
92 | #define LAST_STMT_RANGE(BASE, FIRST, LAST) \ |
93 | first##BASE##Constant=FIRST##Class, last##BASE##Constant=LAST##Class |
94 | #define ABSTRACT_STMT(STMT) |
95 | #include "clang/AST/StmtNodes.inc" |
96 | }; |
97 | |
98 | // Make vanilla 'new' and 'delete' illegal for Stmts. |
99 | protected: |
100 | friend class ASTStmtReader; |
101 | friend class ASTStmtWriter; |
102 | |
103 | void *operator new(size_t bytes) noexcept { |
104 | llvm_unreachable("Stmts cannot be allocated with regular 'new'."); |
105 | } |
106 | |
107 | void operator delete(void *data) noexcept { |
108 | llvm_unreachable("Stmts cannot be released with regular 'delete'."); |
109 | } |
110 | |
111 | //===--- Statement bitfields classes ---===// |
112 | |
113 | #define NumStmtBits 9 |
114 | |
115 | class StmtBitfields { |
116 | friend class ASTStmtReader; |
117 | friend class ASTStmtWriter; |
118 | friend class Stmt; |
119 | |
120 | /// The statement class. |
121 | LLVM_PREFERRED_TYPE(StmtClass) |
122 | unsigned sClass : NumStmtBits; |
123 | }; |
124 | |
125 | class NullStmtBitfields { |
126 | friend class ASTStmtReader; |
127 | friend class ASTStmtWriter; |
128 | friend class NullStmt; |
129 | |
130 | LLVM_PREFERRED_TYPE(StmtBitfields) |
131 | unsigned : NumStmtBits; |
132 | |
133 | /// True if the null statement was preceded by an empty macro, e.g: |
134 | /// @code |
135 | /// #define CALL(x) |
136 | /// CALL(0); |
137 | /// @endcode |
138 | LLVM_PREFERRED_TYPE(bool) |
139 | unsigned HasLeadingEmptyMacro : 1; |
140 | |
141 | /// The location of the semi-colon. |
142 | SourceLocation SemiLoc; |
143 | }; |
144 | |
145 | class CompoundStmtBitfields { |
146 | friend class ASTStmtReader; |
147 | friend class CompoundStmt; |
148 | |
149 | LLVM_PREFERRED_TYPE(StmtBitfields) |
150 | unsigned : NumStmtBits; |
151 | |
152 | /// True if the compound statement has one or more pragmas that set some |
153 | /// floating-point features. |
154 | LLVM_PREFERRED_TYPE(bool) |
155 | unsigned HasFPFeatures : 1; |
156 | |
157 | unsigned NumStmts; |
158 | }; |
159 | |
160 | class LabelStmtBitfields { |
161 | friend class LabelStmt; |
162 | |
163 | LLVM_PREFERRED_TYPE(StmtBitfields) |
164 | unsigned : NumStmtBits; |
165 | |
166 | SourceLocation IdentLoc; |
167 | }; |
168 | |
169 | class AttributedStmtBitfields { |
170 | friend class ASTStmtReader; |
171 | friend class AttributedStmt; |
172 | |
173 | LLVM_PREFERRED_TYPE(StmtBitfields) |
174 | unsigned : NumStmtBits; |
175 | |
176 | /// Number of attributes. |
177 | unsigned NumAttrs : 32 - NumStmtBits; |
178 | |
179 | /// The location of the attribute. |
180 | SourceLocation AttrLoc; |
181 | }; |
182 | |
183 | class IfStmtBitfields { |
184 | friend class ASTStmtReader; |
185 | friend class IfStmt; |
186 | |
187 | LLVM_PREFERRED_TYPE(StmtBitfields) |
188 | unsigned : NumStmtBits; |
189 | |
190 | /// Whether this is a constexpr if, or a consteval if, or neither. |
191 | LLVM_PREFERRED_TYPE(IfStatementKind) |
192 | unsigned Kind : 3; |
193 | |
194 | /// True if this if statement has storage for an else statement. |
195 | LLVM_PREFERRED_TYPE(bool) |
196 | unsigned HasElse : 1; |
197 | |
198 | /// True if this if statement has storage for a variable declaration. |
199 | LLVM_PREFERRED_TYPE(bool) |
200 | unsigned HasVar : 1; |
201 | |
202 | /// True if this if statement has storage for an init statement. |
203 | LLVM_PREFERRED_TYPE(bool) |
204 | unsigned HasInit : 1; |
205 | |
206 | /// The location of the "if". |
207 | SourceLocation IfLoc; |
208 | }; |
209 | |
210 | class SwitchStmtBitfields { |
211 | friend class SwitchStmt; |
212 | |
213 | LLVM_PREFERRED_TYPE(StmtBitfields) |
214 | unsigned : NumStmtBits; |
215 | |
216 | /// True if the SwitchStmt has storage for an init statement. |
217 | LLVM_PREFERRED_TYPE(bool) |
218 | unsigned HasInit : 1; |
219 | |
220 | /// True if the SwitchStmt has storage for a condition variable. |
221 | LLVM_PREFERRED_TYPE(bool) |
222 | unsigned HasVar : 1; |
223 | |
224 | /// If the SwitchStmt is a switch on an enum value, records whether all |
225 | /// the enum values were covered by CaseStmts. The coverage information |
226 | /// value is meant to be a hint for possible clients. |
227 | LLVM_PREFERRED_TYPE(bool) |
228 | unsigned AllEnumCasesCovered : 1; |
229 | |
230 | /// The location of the "switch". |
231 | SourceLocation SwitchLoc; |
232 | }; |
233 | |
234 | class WhileStmtBitfields { |
235 | friend class ASTStmtReader; |
236 | friend class WhileStmt; |
237 | |
238 | LLVM_PREFERRED_TYPE(StmtBitfields) |
239 | unsigned : NumStmtBits; |
240 | |
241 | /// True if the WhileStmt has storage for a condition variable. |
242 | LLVM_PREFERRED_TYPE(bool) |
243 | unsigned HasVar : 1; |
244 | |
245 | /// The location of the "while". |
246 | SourceLocation WhileLoc; |
247 | }; |
248 | |
249 | class DoStmtBitfields { |
250 | friend class DoStmt; |
251 | |
252 | LLVM_PREFERRED_TYPE(StmtBitfields) |
253 | unsigned : NumStmtBits; |
254 | |
255 | /// The location of the "do". |
256 | SourceLocation DoLoc; |
257 | }; |
258 | |
259 | class ForStmtBitfields { |
260 | friend class ForStmt; |
261 | |
262 | LLVM_PREFERRED_TYPE(StmtBitfields) |
263 | unsigned : NumStmtBits; |
264 | |
265 | /// The location of the "for". |
266 | SourceLocation ForLoc; |
267 | }; |
268 | |
269 | class GotoStmtBitfields { |
270 | friend class GotoStmt; |
271 | friend class IndirectGotoStmt; |
272 | |
273 | LLVM_PREFERRED_TYPE(StmtBitfields) |
274 | unsigned : NumStmtBits; |
275 | |
276 | /// The location of the "goto". |
277 | SourceLocation GotoLoc; |
278 | }; |
279 | |
280 | class ContinueStmtBitfields { |
281 | friend class ContinueStmt; |
282 | |
283 | LLVM_PREFERRED_TYPE(StmtBitfields) |
284 | unsigned : NumStmtBits; |
285 | |
286 | /// The location of the "continue". |
287 | SourceLocation ContinueLoc; |
288 | }; |
289 | |
290 | class BreakStmtBitfields { |
291 | friend class BreakStmt; |
292 | |
293 | LLVM_PREFERRED_TYPE(StmtBitfields) |
294 | unsigned : NumStmtBits; |
295 | |
296 | /// The location of the "break". |
297 | SourceLocation BreakLoc; |
298 | }; |
299 | |
300 | class ReturnStmtBitfields { |
301 | friend class ReturnStmt; |
302 | |
303 | LLVM_PREFERRED_TYPE(StmtBitfields) |
304 | unsigned : NumStmtBits; |
305 | |
306 | /// True if this ReturnStmt has storage for an NRVO candidate. |
307 | LLVM_PREFERRED_TYPE(bool) |
308 | unsigned HasNRVOCandidate : 1; |
309 | |
310 | /// The location of the "return". |
311 | SourceLocation RetLoc; |
312 | }; |
313 | |
314 | class SwitchCaseBitfields { |
315 | friend class SwitchCase; |
316 | friend class CaseStmt; |
317 | |
318 | LLVM_PREFERRED_TYPE(StmtBitfields) |
319 | unsigned : NumStmtBits; |
320 | |
321 | /// Used by CaseStmt to store whether it is a case statement |
322 | /// of the form case LHS ... RHS (a GNU extension). |
323 | LLVM_PREFERRED_TYPE(bool) |
324 | unsigned CaseStmtIsGNURange : 1; |
325 | |
326 | /// The location of the "case" or "default" keyword. |
327 | SourceLocation KeywordLoc; |
328 | }; |
329 | |
330 | //===--- Expression bitfields classes ---===// |
331 | |
332 | class ExprBitfields { |
333 | friend class ASTStmtReader; // deserialization |
334 | friend class AtomicExpr; // ctor |
335 | friend class BlockDeclRefExpr; // ctor |
336 | friend class CallExpr; // ctor |
337 | friend class CXXConstructExpr; // ctor |
338 | friend class CXXDependentScopeMemberExpr; // ctor |
339 | friend class CXXNewExpr; // ctor |
340 | friend class CXXUnresolvedConstructExpr; // ctor |
341 | friend class DeclRefExpr; // computeDependence |
342 | friend class DependentScopeDeclRefExpr; // ctor |
343 | friend class DesignatedInitExpr; // ctor |
344 | friend class Expr; |
345 | friend class InitListExpr; // ctor |
346 | friend class ObjCArrayLiteral; // ctor |
347 | friend class ObjCDictionaryLiteral; // ctor |
348 | friend class ObjCMessageExpr; // ctor |
349 | friend class OffsetOfExpr; // ctor |
350 | friend class OpaqueValueExpr; // ctor |
351 | friend class OverloadExpr; // ctor |
352 | friend class ParenListExpr; // ctor |
353 | friend class PseudoObjectExpr; // ctor |
354 | friend class ShuffleVectorExpr; // ctor |
355 | |
356 | LLVM_PREFERRED_TYPE(StmtBitfields) |
357 | unsigned : NumStmtBits; |
358 | |
359 | LLVM_PREFERRED_TYPE(ExprValueKind) |
360 | unsigned ValueKind : 2; |
361 | LLVM_PREFERRED_TYPE(ExprObjectKind) |
362 | unsigned ObjectKind : 3; |
363 | LLVM_PREFERRED_TYPE(ExprDependence) |
364 | unsigned Dependent : llvm::BitWidth<ExprDependence>; |
365 | }; |
366 | enum { NumExprBits = NumStmtBits + 5 + llvm::BitWidth<ExprDependence> }; |
367 | |
368 | class ConstantExprBitfields { |
369 | friend class ASTStmtReader; |
370 | friend class ASTStmtWriter; |
371 | friend class ConstantExpr; |
372 | |
373 | LLVM_PREFERRED_TYPE(ExprBitfields) |
374 | unsigned : NumExprBits; |
375 | |
376 | /// The kind of result that is tail-allocated. |
377 | LLVM_PREFERRED_TYPE(ConstantResultStorageKind) |
378 | unsigned ResultKind : 2; |
379 | |
380 | /// The kind of Result as defined by APValue::ValueKind. |
381 | LLVM_PREFERRED_TYPE(APValue::ValueKind) |
382 | unsigned APValueKind : 4; |
383 | |
384 | /// When ResultKind == ConstantResultStorageKind::Int64, true if the |
385 | /// tail-allocated integer is unsigned. |
386 | LLVM_PREFERRED_TYPE(bool) |
387 | unsigned IsUnsigned : 1; |
388 | |
389 | /// When ResultKind == ConstantResultStorageKind::Int64. the BitWidth of the |
390 | /// tail-allocated integer. 7 bits because it is the minimal number of bits |
391 | /// to represent a value from 0 to 64 (the size of the tail-allocated |
392 | /// integer). |
393 | unsigned BitWidth : 7; |
394 | |
395 | /// When ResultKind == ConstantResultStorageKind::APValue, true if the |
396 | /// ASTContext will cleanup the tail-allocated APValue. |
397 | LLVM_PREFERRED_TYPE(bool) |
398 | unsigned HasCleanup : 1; |
399 | |
400 | /// True if this ConstantExpr was created for immediate invocation. |
401 | LLVM_PREFERRED_TYPE(bool) |
402 | unsigned IsImmediateInvocation : 1; |
403 | }; |
404 | |
405 | class PredefinedExprBitfields { |
406 | friend class ASTStmtReader; |
407 | friend class PredefinedExpr; |
408 | |
409 | LLVM_PREFERRED_TYPE(ExprBitfields) |
410 | unsigned : NumExprBits; |
411 | |
412 | LLVM_PREFERRED_TYPE(PredefinedIdentKind) |
413 | unsigned Kind : 4; |
414 | |
415 | /// True if this PredefinedExpr has a trailing "StringLiteral *" |
416 | /// for the predefined identifier. |
417 | LLVM_PREFERRED_TYPE(bool) |
418 | unsigned HasFunctionName : 1; |
419 | |
420 | /// True if this PredefinedExpr should be treated as a StringLiteral (for |
421 | /// MSVC compatibility). |
422 | LLVM_PREFERRED_TYPE(bool) |
423 | unsigned IsTransparent : 1; |
424 | |
425 | /// The location of this PredefinedExpr. |
426 | SourceLocation Loc; |
427 | }; |
428 | |
429 | class DeclRefExprBitfields { |
430 | friend class ASTStmtReader; // deserialization |
431 | friend class DeclRefExpr; |
432 | |
433 | LLVM_PREFERRED_TYPE(ExprBitfields) |
434 | unsigned : NumExprBits; |
435 | |
436 | LLVM_PREFERRED_TYPE(bool) |
437 | unsigned HasQualifier : 1; |
438 | LLVM_PREFERRED_TYPE(bool) |
439 | unsigned HasTemplateKWAndArgsInfo : 1; |
440 | LLVM_PREFERRED_TYPE(bool) |
441 | unsigned HasFoundDecl : 1; |
442 | LLVM_PREFERRED_TYPE(bool) |
443 | unsigned HadMultipleCandidates : 1; |
444 | LLVM_PREFERRED_TYPE(bool) |
445 | unsigned RefersToEnclosingVariableOrCapture : 1; |
446 | LLVM_PREFERRED_TYPE(bool) |
447 | unsigned CapturedByCopyInLambdaWithExplicitObjectParameter : 1; |
448 | LLVM_PREFERRED_TYPE(NonOdrUseReason) |
449 | unsigned NonOdrUseReason : 2; |
450 | LLVM_PREFERRED_TYPE(bool) |
451 | unsigned IsImmediateEscalating : 1; |
452 | |
453 | /// The location of the declaration name itself. |
454 | SourceLocation Loc; |
455 | }; |
456 | |
457 | |
458 | class FloatingLiteralBitfields { |
459 | friend class FloatingLiteral; |
460 | |
461 | LLVM_PREFERRED_TYPE(ExprBitfields) |
462 | unsigned : NumExprBits; |
463 | |
464 | static_assert( |
465 | llvm::APFloat::S_MaxSemantics < 32, |
466 | "Too many Semantics enum values to fit in bitfield of size 5"); |
467 | LLVM_PREFERRED_TYPE(llvm::APFloat::Semantics) |
468 | unsigned Semantics : 5; // Provides semantics for APFloat construction |
469 | LLVM_PREFERRED_TYPE(bool) |
470 | unsigned IsExact : 1; |
471 | }; |
472 | |
473 | class StringLiteralBitfields { |
474 | friend class ASTStmtReader; |
475 | friend class StringLiteral; |
476 | |
477 | LLVM_PREFERRED_TYPE(ExprBitfields) |
478 | unsigned : NumExprBits; |
479 | |
480 | /// The kind of this string literal. |
481 | /// One of the enumeration values of StringLiteral::StringKind. |
482 | LLVM_PREFERRED_TYPE(StringLiteralKind) |
483 | unsigned Kind : 3; |
484 | |
485 | /// The width of a single character in bytes. Only values of 1, 2, |
486 | /// and 4 bytes are supported. StringLiteral::mapCharByteWidth maps |
487 | /// the target + string kind to the appropriate CharByteWidth. |
488 | unsigned CharByteWidth : 3; |
489 | |
490 | LLVM_PREFERRED_TYPE(bool) |
491 | unsigned IsPascal : 1; |
492 | |
493 | /// The number of concatenated token this string is made of. |
494 | /// This is the number of trailing SourceLocation. |
495 | unsigned NumConcatenated; |
496 | }; |
497 | |
498 | class CharacterLiteralBitfields { |
499 | friend class CharacterLiteral; |
500 | |
501 | LLVM_PREFERRED_TYPE(ExprBitfields) |
502 | unsigned : NumExprBits; |
503 | |
504 | LLVM_PREFERRED_TYPE(CharacterLiteralKind) |
505 | unsigned Kind : 3; |
506 | }; |
507 | |
508 | class UnaryOperatorBitfields { |
509 | friend class UnaryOperator; |
510 | |
511 | LLVM_PREFERRED_TYPE(ExprBitfields) |
512 | unsigned : NumExprBits; |
513 | |
514 | LLVM_PREFERRED_TYPE(UnaryOperatorKind) |
515 | unsigned Opc : 5; |
516 | LLVM_PREFERRED_TYPE(bool) |
517 | unsigned CanOverflow : 1; |
518 | // |
519 | /// This is only meaningful for operations on floating point |
520 | /// types when additional values need to be in trailing storage. |
521 | /// It is 0 otherwise. |
522 | LLVM_PREFERRED_TYPE(bool) |
523 | unsigned HasFPFeatures : 1; |
524 | |
525 | SourceLocation Loc; |
526 | }; |
527 | |
528 | class UnaryExprOrTypeTraitExprBitfields { |
529 | friend class UnaryExprOrTypeTraitExpr; |
530 | |
531 | LLVM_PREFERRED_TYPE(ExprBitfields) |
532 | unsigned : NumExprBits; |
533 | |
534 | LLVM_PREFERRED_TYPE(UnaryExprOrTypeTrait) |
535 | unsigned Kind : 4; |
536 | LLVM_PREFERRED_TYPE(bool) |
537 | unsigned IsType : 1; // true if operand is a type, false if an expression. |
538 | }; |
539 | |
540 | class ArrayOrMatrixSubscriptExprBitfields { |
541 | friend class ArraySubscriptExpr; |
542 | friend class MatrixSubscriptExpr; |
543 | |
544 | LLVM_PREFERRED_TYPE(ExprBitfields) |
545 | unsigned : NumExprBits; |
546 | |
547 | SourceLocation RBracketLoc; |
548 | }; |
549 | |
550 | class CallExprBitfields { |
551 | friend class CallExpr; |
552 | |
553 | LLVM_PREFERRED_TYPE(ExprBitfields) |
554 | unsigned : NumExprBits; |
555 | |
556 | unsigned NumPreArgs : 1; |
557 | |
558 | /// True if the callee of the call expression was found using ADL. |
559 | LLVM_PREFERRED_TYPE(bool) |
560 | unsigned UsesADL : 1; |
561 | |
562 | /// True if the call expression has some floating-point features. |
563 | LLVM_PREFERRED_TYPE(bool) |
564 | unsigned HasFPFeatures : 1; |
565 | |
566 | /// True if the call expression is a must-elide call to a coroutine. |
567 | LLVM_PREFERRED_TYPE(bool) |
568 | unsigned IsCoroElideSafe : 1; |
569 | |
570 | /// Tracks when CallExpr is used to represent an explicit object |
571 | /// member function, in order to adjust the begin location. |
572 | LLVM_PREFERRED_TYPE(bool) |
573 | unsigned ExplicitObjectMemFunUsingMemberSyntax : 1; |
574 | |
575 | /// Indicates that SourceLocations are cached as |
576 | /// Trailing objects. See the definition of CallExpr. |
577 | LLVM_PREFERRED_TYPE(bool) |
578 | unsigned HasTrailingSourceLoc : 1; |
579 | }; |
580 | |
581 | enum { NumCallExprBits = 25 }; |
582 | |
583 | class MemberExprBitfields { |
584 | friend class ASTStmtReader; |
585 | friend class MemberExpr; |
586 | |
587 | LLVM_PREFERRED_TYPE(ExprBitfields) |
588 | unsigned : NumExprBits; |
589 | |
590 | /// IsArrow - True if this is "X->F", false if this is "X.F". |
591 | LLVM_PREFERRED_TYPE(bool) |
592 | unsigned IsArrow : 1; |
593 | |
594 | /// True if this member expression used a nested-name-specifier to |
595 | /// refer to the member, e.g., "x->Base::f". |
596 | LLVM_PREFERRED_TYPE(bool) |
597 | unsigned HasQualifier : 1; |
598 | |
599 | // True if this member expression found its member via a using declaration. |
600 | LLVM_PREFERRED_TYPE(bool) |
601 | unsigned HasFoundDecl : 1; |
602 | |
603 | /// True if this member expression specified a template keyword |
604 | /// and/or a template argument list explicitly, e.g., x->f<int>, |
605 | /// x->template f, x->template f<int>. |
606 | /// When true, an ASTTemplateKWAndArgsInfo structure and its |
607 | /// TemplateArguments (if any) are present. |
608 | LLVM_PREFERRED_TYPE(bool) |
609 | unsigned HasTemplateKWAndArgsInfo : 1; |
610 | |
611 | /// True if this member expression refers to a method that |
612 | /// was resolved from an overloaded set having size greater than 1. |
613 | LLVM_PREFERRED_TYPE(bool) |
614 | unsigned HadMultipleCandidates : 1; |
615 | |
616 | /// Value of type NonOdrUseReason indicating why this MemberExpr does |
617 | /// not constitute an odr-use of the named declaration. Meaningful only |
618 | /// when naming a static member. |
619 | LLVM_PREFERRED_TYPE(NonOdrUseReason) |
620 | unsigned NonOdrUseReason : 2; |
621 | |
622 | /// This is the location of the -> or . in the expression. |
623 | SourceLocation OperatorLoc; |
624 | }; |
625 | |
626 | class CastExprBitfields { |
627 | friend class CastExpr; |
628 | friend class ImplicitCastExpr; |
629 | |
630 | LLVM_PREFERRED_TYPE(ExprBitfields) |
631 | unsigned : NumExprBits; |
632 | |
633 | LLVM_PREFERRED_TYPE(CastKind) |
634 | unsigned Kind : 7; |
635 | LLVM_PREFERRED_TYPE(bool) |
636 | unsigned PartOfExplicitCast : 1; // Only set for ImplicitCastExpr. |
637 | |
638 | /// True if the call expression has some floating-point features. |
639 | LLVM_PREFERRED_TYPE(bool) |
640 | unsigned HasFPFeatures : 1; |
641 | |
642 | /// The number of CXXBaseSpecifiers in the cast. 14 bits would be enough |
643 | /// here. ([implimits] Direct and indirect base classes [16384]). |
644 | unsigned BasePathSize; |
645 | }; |
646 | |
647 | class BinaryOperatorBitfields { |
648 | friend class BinaryOperator; |
649 | |
650 | LLVM_PREFERRED_TYPE(ExprBitfields) |
651 | unsigned : NumExprBits; |
652 | |
653 | LLVM_PREFERRED_TYPE(BinaryOperatorKind) |
654 | unsigned Opc : 6; |
655 | |
656 | /// This is only meaningful for operations on floating point |
657 | /// types when additional values need to be in trailing storage. |
658 | /// It is 0 otherwise. |
659 | LLVM_PREFERRED_TYPE(bool) |
660 | unsigned HasFPFeatures : 1; |
661 | |
662 | /// Whether or not this BinaryOperator should be excluded from integer |
663 | /// overflow sanitization. |
664 | LLVM_PREFERRED_TYPE(bool) |
665 | unsigned ExcludedOverflowPattern : 1; |
666 | |
667 | SourceLocation OpLoc; |
668 | }; |
669 | |
670 | class InitListExprBitfields { |
671 | friend class InitListExpr; |
672 | |
673 | LLVM_PREFERRED_TYPE(ExprBitfields) |
674 | unsigned : NumExprBits; |
675 | |
676 | /// Whether this initializer list originally had a GNU array-range |
677 | /// designator in it. This is a temporary marker used by CodeGen. |
678 | LLVM_PREFERRED_TYPE(bool) |
679 | unsigned HadArrayRangeDesignator : 1; |
680 | }; |
681 | |
682 | class ParenListExprBitfields { |
683 | friend class ASTStmtReader; |
684 | friend class ParenListExpr; |
685 | |
686 | LLVM_PREFERRED_TYPE(ExprBitfields) |
687 | unsigned : NumExprBits; |
688 | |
689 | /// The number of expressions in the paren list. |
690 | unsigned NumExprs; |
691 | }; |
692 | |
693 | class GenericSelectionExprBitfields { |
694 | friend class ASTStmtReader; |
695 | friend class GenericSelectionExpr; |
696 | |
697 | LLVM_PREFERRED_TYPE(ExprBitfields) |
698 | unsigned : NumExprBits; |
699 | |
700 | /// The location of the "_Generic". |
701 | SourceLocation GenericLoc; |
702 | }; |
703 | |
704 | class PseudoObjectExprBitfields { |
705 | friend class ASTStmtReader; // deserialization |
706 | friend class PseudoObjectExpr; |
707 | |
708 | LLVM_PREFERRED_TYPE(ExprBitfields) |
709 | unsigned : NumExprBits; |
710 | |
711 | unsigned NumSubExprs : 16; |
712 | unsigned ResultIndex : 16; |
713 | }; |
714 | |
715 | class SourceLocExprBitfields { |
716 | friend class ASTStmtReader; |
717 | friend class SourceLocExpr; |
718 | |
719 | LLVM_PREFERRED_TYPE(ExprBitfields) |
720 | unsigned : NumExprBits; |
721 | |
722 | /// The kind of source location builtin represented by the SourceLocExpr. |
723 | /// Ex. __builtin_LINE, __builtin_FUNCTION, etc. |
724 | LLVM_PREFERRED_TYPE(SourceLocIdentKind) |
725 | unsigned Kind : 3; |
726 | }; |
727 | |
728 | class ParenExprBitfields { |
729 | friend class ASTStmtReader; |
730 | friend class ASTStmtWriter; |
731 | friend class ParenExpr; |
732 | |
733 | LLVM_PREFERRED_TYPE(ExprBitfields) |
734 | unsigned : NumExprBits; |
735 | |
736 | LLVM_PREFERRED_TYPE(bool) |
737 | unsigned ProducedByFoldExpansion : 1; |
738 | }; |
739 | |
740 | class ShuffleVectorExprBitfields { |
741 | friend class ShuffleVectorExpr; |
742 | |
743 | LLVM_PREFERRED_TYPE(ExprBitfields) |
744 | unsigned : NumExprBits; |
745 | |
746 | unsigned NumExprs; |
747 | }; |
748 | |
749 | class StmtExprBitfields { |
750 | friend class ASTStmtReader; |
751 | friend class StmtExpr; |
752 | |
753 | LLVM_PREFERRED_TYPE(ExprBitfields) |
754 | unsigned : NumExprBits; |
755 | |
756 | /// The number of levels of template parameters enclosing this statement |
757 | /// expression. Used to determine if a statement expression remains |
758 | /// dependent after instantiation. |
759 | unsigned TemplateDepth; |
760 | }; |
761 | |
762 | class ChooseExprBitfields { |
763 | friend class ASTStmtReader; |
764 | friend class ChooseExpr; |
765 | |
766 | LLVM_PREFERRED_TYPE(ExprBitfields) |
767 | unsigned : NumExprBits; |
768 | |
769 | LLVM_PREFERRED_TYPE(bool) |
770 | bool CondIsTrue : 1; |
771 | }; |
772 | |
773 | //===--- C++ Expression bitfields classes ---===// |
774 | |
775 | class CXXOperatorCallExprBitfields { |
776 | friend class ASTStmtReader; |
777 | friend class CXXOperatorCallExpr; |
778 | |
779 | LLVM_PREFERRED_TYPE(CallExprBitfields) |
780 | unsigned : NumCallExprBits; |
781 | |
782 | /// The kind of this overloaded operator. One of the enumerator |
783 | /// value of OverloadedOperatorKind. |
784 | LLVM_PREFERRED_TYPE(OverloadedOperatorKind) |
785 | unsigned OperatorKind : 6; |
786 | }; |
787 | |
788 | class CXXRewrittenBinaryOperatorBitfields { |
789 | friend class ASTStmtReader; |
790 | friend class CXXRewrittenBinaryOperator; |
791 | |
792 | LLVM_PREFERRED_TYPE(CallExprBitfields) |
793 | unsigned : NumCallExprBits; |
794 | |
795 | LLVM_PREFERRED_TYPE(bool) |
796 | unsigned IsReversed : 1; |
797 | }; |
798 | |
799 | class CXXBoolLiteralExprBitfields { |
800 | friend class CXXBoolLiteralExpr; |
801 | |
802 | LLVM_PREFERRED_TYPE(ExprBitfields) |
803 | unsigned : NumExprBits; |
804 | |
805 | /// The value of the boolean literal. |
806 | LLVM_PREFERRED_TYPE(bool) |
807 | unsigned Value : 1; |
808 | |
809 | /// The location of the boolean literal. |
810 | SourceLocation Loc; |
811 | }; |
812 | |
813 | class CXXNullPtrLiteralExprBitfields { |
814 | friend class CXXNullPtrLiteralExpr; |
815 | |
816 | LLVM_PREFERRED_TYPE(ExprBitfields) |
817 | unsigned : NumExprBits; |
818 | |
819 | /// The location of the null pointer literal. |
820 | SourceLocation Loc; |
821 | }; |
822 | |
823 | class CXXThisExprBitfields { |
824 | friend class CXXThisExpr; |
825 | |
826 | LLVM_PREFERRED_TYPE(ExprBitfields) |
827 | unsigned : NumExprBits; |
828 | |
829 | /// Whether this is an implicit "this". |
830 | LLVM_PREFERRED_TYPE(bool) |
831 | unsigned IsImplicit : 1; |
832 | |
833 | /// Whether there is a lambda with an explicit object parameter that |
834 | /// captures this "this" by copy. |
835 | LLVM_PREFERRED_TYPE(bool) |
836 | unsigned CapturedByCopyInLambdaWithExplicitObjectParameter : 1; |
837 | |
838 | /// The location of the "this". |
839 | SourceLocation Loc; |
840 | }; |
841 | |
842 | class CXXThrowExprBitfields { |
843 | friend class ASTStmtReader; |
844 | friend class CXXThrowExpr; |
845 | |
846 | LLVM_PREFERRED_TYPE(ExprBitfields) |
847 | unsigned : NumExprBits; |
848 | |
849 | /// Whether the thrown variable (if any) is in scope. |
850 | LLVM_PREFERRED_TYPE(bool) |
851 | unsigned IsThrownVariableInScope : 1; |
852 | |
853 | /// The location of the "throw". |
854 | SourceLocation ThrowLoc; |
855 | }; |
856 | |
857 | class CXXDefaultArgExprBitfields { |
858 | friend class ASTStmtReader; |
859 | friend class CXXDefaultArgExpr; |
860 | |
861 | LLVM_PREFERRED_TYPE(ExprBitfields) |
862 | unsigned : NumExprBits; |
863 | |
864 | /// Whether this CXXDefaultArgExpr rewrote its argument and stores a copy. |
865 | LLVM_PREFERRED_TYPE(bool) |
866 | unsigned HasRewrittenInit : 1; |
867 | |
868 | /// The location where the default argument expression was used. |
869 | SourceLocation Loc; |
870 | }; |
871 | |
872 | class CXXDefaultInitExprBitfields { |
873 | friend class ASTStmtReader; |
874 | friend class CXXDefaultInitExpr; |
875 | |
876 | LLVM_PREFERRED_TYPE(ExprBitfields) |
877 | unsigned : NumExprBits; |
878 | |
879 | /// Whether this CXXDefaultInitExprBitfields rewrote its argument and stores |
880 | /// a copy. |
881 | LLVM_PREFERRED_TYPE(bool) |
882 | unsigned HasRewrittenInit : 1; |
883 | |
884 | /// The location where the default initializer expression was used. |
885 | SourceLocation Loc; |
886 | }; |
887 | |
888 | class CXXScalarValueInitExprBitfields { |
889 | friend class ASTStmtReader; |
890 | friend class CXXScalarValueInitExpr; |
891 | |
892 | LLVM_PREFERRED_TYPE(ExprBitfields) |
893 | unsigned : NumExprBits; |
894 | |
895 | SourceLocation RParenLoc; |
896 | }; |
897 | |
898 | class CXXNewExprBitfields { |
899 | friend class ASTStmtReader; |
900 | friend class ASTStmtWriter; |
901 | friend class CXXNewExpr; |
902 | |
903 | LLVM_PREFERRED_TYPE(ExprBitfields) |
904 | unsigned : NumExprBits; |
905 | |
906 | /// Was the usage ::new, i.e. is the global new to be used? |
907 | LLVM_PREFERRED_TYPE(bool) |
908 | unsigned IsGlobalNew : 1; |
909 | |
910 | /// Do we allocate an array? If so, the first trailing "Stmt *" is the |
911 | /// size expression. |
912 | LLVM_PREFERRED_TYPE(bool) |
913 | unsigned IsArray : 1; |
914 | |
915 | /// Should the alignment be passed to the allocation function? |
916 | LLVM_PREFERRED_TYPE(bool) |
917 | unsigned ShouldPassAlignment : 1; |
918 | |
919 | /// Should the type identity be passed to the allocation function? |
920 | LLVM_PREFERRED_TYPE(bool) |
921 | unsigned ShouldPassTypeIdentity : 1; |
922 | |
923 | /// If this is an array allocation, does the usual deallocation |
924 | /// function for the allocated type want to know the allocated size? |
925 | LLVM_PREFERRED_TYPE(bool) |
926 | unsigned UsualArrayDeleteWantsSize : 1; |
927 | |
928 | // Is initializer expr present? |
929 | LLVM_PREFERRED_TYPE(bool) |
930 | unsigned HasInitializer : 1; |
931 | |
932 | /// What kind of initializer syntax used? Could be none, parens, or braces. |
933 | LLVM_PREFERRED_TYPE(CXXNewInitializationStyle) |
934 | unsigned StoredInitializationStyle : 2; |
935 | |
936 | /// True if the allocated type was expressed as a parenthesized type-id. |
937 | LLVM_PREFERRED_TYPE(bool) |
938 | unsigned IsParenTypeId : 1; |
939 | |
940 | /// The number of placement new arguments. |
941 | unsigned NumPlacementArgs; |
942 | }; |
943 | |
944 | class CXXDeleteExprBitfields { |
945 | friend class ASTStmtReader; |
946 | friend class CXXDeleteExpr; |
947 | |
948 | LLVM_PREFERRED_TYPE(ExprBitfields) |
949 | unsigned : NumExprBits; |
950 | |
951 | /// Is this a forced global delete, i.e. "::delete"? |
952 | LLVM_PREFERRED_TYPE(bool) |
953 | unsigned GlobalDelete : 1; |
954 | |
955 | /// Is this the array form of delete, i.e. "delete[]"? |
956 | LLVM_PREFERRED_TYPE(bool) |
957 | unsigned ArrayForm : 1; |
958 | |
959 | /// ArrayFormAsWritten can be different from ArrayForm if 'delete' is |
960 | /// applied to pointer-to-array type (ArrayFormAsWritten will be false |
961 | /// while ArrayForm will be true). |
962 | LLVM_PREFERRED_TYPE(bool) |
963 | unsigned ArrayFormAsWritten : 1; |
964 | |
965 | /// Does the usual deallocation function for the element type require |
966 | /// a size_t argument? |
967 | LLVM_PREFERRED_TYPE(bool) |
968 | unsigned UsualArrayDeleteWantsSize : 1; |
969 | |
970 | /// Location of the expression. |
971 | SourceLocation Loc; |
972 | }; |
973 | |
974 | class TypeTraitExprBitfields { |
975 | friend class ASTStmtReader; |
976 | friend class ASTStmtWriter; |
977 | friend class TypeTraitExpr; |
978 | |
979 | LLVM_PREFERRED_TYPE(ExprBitfields) |
980 | unsigned : NumExprBits; |
981 | |
982 | /// The kind of type trait, which is a value of a TypeTrait enumerator. |
983 | LLVM_PREFERRED_TYPE(TypeTrait) |
984 | unsigned Kind : 8; |
985 | |
986 | LLVM_PREFERRED_TYPE(bool) |
987 | unsigned IsBooleanTypeTrait : 1; |
988 | |
989 | /// If this expression is a non value-dependent boolean trait, |
990 | /// this indicates whether the trait evaluated true or false. |
991 | LLVM_PREFERRED_TYPE(bool) |
992 | unsigned Value : 1; |
993 | /// The number of arguments to this type trait. According to [implimits] |
994 | /// 8 bits would be enough, but we require (and test for) at least 16 bits |
995 | /// to mirror FunctionType. |
996 | unsigned NumArgs; |
997 | }; |
998 | |
999 | class DependentScopeDeclRefExprBitfields { |
1000 | friend class ASTStmtReader; |
1001 | friend class ASTStmtWriter; |
1002 | friend class DependentScopeDeclRefExpr; |
1003 | |
1004 | LLVM_PREFERRED_TYPE(ExprBitfields) |
1005 | unsigned : NumExprBits; |
1006 | |
1007 | /// Whether the name includes info for explicit template |
1008 | /// keyword and arguments. |
1009 | LLVM_PREFERRED_TYPE(bool) |
1010 | unsigned HasTemplateKWAndArgsInfo : 1; |
1011 | }; |
1012 | |
1013 | class CXXConstructExprBitfields { |
1014 | friend class ASTStmtReader; |
1015 | friend class CXXConstructExpr; |
1016 | |
1017 | LLVM_PREFERRED_TYPE(ExprBitfields) |
1018 | unsigned : NumExprBits; |
1019 | |
1020 | LLVM_PREFERRED_TYPE(bool) |
1021 | unsigned Elidable : 1; |
1022 | LLVM_PREFERRED_TYPE(bool) |
1023 | unsigned HadMultipleCandidates : 1; |
1024 | LLVM_PREFERRED_TYPE(bool) |
1025 | unsigned ListInitialization : 1; |
1026 | LLVM_PREFERRED_TYPE(bool) |
1027 | unsigned StdInitListInitialization : 1; |
1028 | LLVM_PREFERRED_TYPE(bool) |
1029 | unsigned ZeroInitialization : 1; |
1030 | LLVM_PREFERRED_TYPE(CXXConstructionKind) |
1031 | unsigned ConstructionKind : 3; |
1032 | LLVM_PREFERRED_TYPE(bool) |
1033 | unsigned IsImmediateEscalating : 1; |
1034 | |
1035 | SourceLocation Loc; |
1036 | }; |
1037 | |
1038 | class ExprWithCleanupsBitfields { |
1039 | friend class ASTStmtReader; // deserialization |
1040 | friend class ExprWithCleanups; |
1041 | |
1042 | LLVM_PREFERRED_TYPE(ExprBitfields) |
1043 | unsigned : NumExprBits; |
1044 | |
1045 | // When false, it must not have side effects. |
1046 | LLVM_PREFERRED_TYPE(bool) |
1047 | unsigned CleanupsHaveSideEffects : 1; |
1048 | |
1049 | unsigned NumObjects : 32 - 1 - NumExprBits; |
1050 | }; |
1051 | |
1052 | class CXXUnresolvedConstructExprBitfields { |
1053 | friend class ASTStmtReader; |
1054 | friend class CXXUnresolvedConstructExpr; |
1055 | |
1056 | LLVM_PREFERRED_TYPE(ExprBitfields) |
1057 | unsigned : NumExprBits; |
1058 | |
1059 | /// The number of arguments used to construct the type. |
1060 | unsigned NumArgs; |
1061 | }; |
1062 | |
1063 | class CXXDependentScopeMemberExprBitfields { |
1064 | friend class ASTStmtReader; |
1065 | friend class CXXDependentScopeMemberExpr; |
1066 | |
1067 | LLVM_PREFERRED_TYPE(ExprBitfields) |
1068 | unsigned : NumExprBits; |
1069 | |
1070 | /// Whether this member expression used the '->' operator or |
1071 | /// the '.' operator. |
1072 | LLVM_PREFERRED_TYPE(bool) |
1073 | unsigned IsArrow : 1; |
1074 | |
1075 | /// Whether this member expression has info for explicit template |
1076 | /// keyword and arguments. |
1077 | LLVM_PREFERRED_TYPE(bool) |
1078 | unsigned HasTemplateKWAndArgsInfo : 1; |
1079 | |
1080 | /// See getFirstQualifierFoundInScope() and the comment listing |
1081 | /// the trailing objects. |
1082 | LLVM_PREFERRED_TYPE(bool) |
1083 | unsigned HasFirstQualifierFoundInScope : 1; |
1084 | |
1085 | /// The location of the '->' or '.' operator. |
1086 | SourceLocation OperatorLoc; |
1087 | }; |
1088 | |
1089 | class OverloadExprBitfields { |
1090 | friend class ASTStmtReader; |
1091 | friend class OverloadExpr; |
1092 | |
1093 | LLVM_PREFERRED_TYPE(ExprBitfields) |
1094 | unsigned : NumExprBits; |
1095 | |
1096 | /// Whether the name includes info for explicit template |
1097 | /// keyword and arguments. |
1098 | LLVM_PREFERRED_TYPE(bool) |
1099 | unsigned HasTemplateKWAndArgsInfo : 1; |
1100 | |
1101 | /// Padding used by the derived classes to store various bits. If you |
1102 | /// need to add some data here, shrink this padding and add your data |
1103 | /// above. NumOverloadExprBits also needs to be updated. |
1104 | unsigned : 32 - NumExprBits - 1; |
1105 | |
1106 | /// The number of results. |
1107 | unsigned NumResults; |
1108 | }; |
1109 | enum { NumOverloadExprBits = NumExprBits + 1 }; |
1110 | |
1111 | class UnresolvedLookupExprBitfields { |
1112 | friend class ASTStmtReader; |
1113 | friend class UnresolvedLookupExpr; |
1114 | |
1115 | LLVM_PREFERRED_TYPE(OverloadExprBitfields) |
1116 | unsigned : NumOverloadExprBits; |
1117 | |
1118 | /// True if these lookup results should be extended by |
1119 | /// argument-dependent lookup if this is the operand of a function call. |
1120 | LLVM_PREFERRED_TYPE(bool) |
1121 | unsigned RequiresADL : 1; |
1122 | }; |
1123 | static_assert(sizeof(UnresolvedLookupExprBitfields) <= 4, |
1124 | "UnresolvedLookupExprBitfields must be <= than 4 bytes to" |
1125 | "avoid trashing OverloadExprBitfields::NumResults!"); |
1126 | |
1127 | class UnresolvedMemberExprBitfields { |
1128 | friend class ASTStmtReader; |
1129 | friend class UnresolvedMemberExpr; |
1130 | |
1131 | LLVM_PREFERRED_TYPE(OverloadExprBitfields) |
1132 | unsigned : NumOverloadExprBits; |
1133 | |
1134 | /// Whether this member expression used the '->' operator or |
1135 | /// the '.' operator. |
1136 | LLVM_PREFERRED_TYPE(bool) |
1137 | unsigned IsArrow : 1; |
1138 | |
1139 | /// Whether the lookup results contain an unresolved using declaration. |
1140 | LLVM_PREFERRED_TYPE(bool) |
1141 | unsigned HasUnresolvedUsing : 1; |
1142 | }; |
1143 | static_assert(sizeof(UnresolvedMemberExprBitfields) <= 4, |
1144 | "UnresolvedMemberExprBitfields must be <= than 4 bytes to" |
1145 | "avoid trashing OverloadExprBitfields::NumResults!"); |
1146 | |
1147 | class CXXNoexceptExprBitfields { |
1148 | friend class ASTStmtReader; |
1149 | friend class CXXNoexceptExpr; |
1150 | |
1151 | LLVM_PREFERRED_TYPE(ExprBitfields) |
1152 | unsigned : NumExprBits; |
1153 | |
1154 | LLVM_PREFERRED_TYPE(bool) |
1155 | unsigned Value : 1; |
1156 | }; |
1157 | |
1158 | class SubstNonTypeTemplateParmExprBitfields { |
1159 | friend class ASTStmtReader; |
1160 | friend class SubstNonTypeTemplateParmExpr; |
1161 | |
1162 | LLVM_PREFERRED_TYPE(ExprBitfields) |
1163 | unsigned : NumExprBits; |
1164 | |
1165 | /// The location of the non-type template parameter reference. |
1166 | SourceLocation NameLoc; |
1167 | }; |
1168 | |
1169 | class LambdaExprBitfields { |
1170 | friend class ASTStmtReader; |
1171 | friend class ASTStmtWriter; |
1172 | friend class LambdaExpr; |
1173 | |
1174 | LLVM_PREFERRED_TYPE(ExprBitfields) |
1175 | unsigned : NumExprBits; |
1176 | |
1177 | /// The default capture kind, which is a value of type |
1178 | /// LambdaCaptureDefault. |
1179 | LLVM_PREFERRED_TYPE(LambdaCaptureDefault) |
1180 | unsigned CaptureDefault : 2; |
1181 | |
1182 | /// Whether this lambda had an explicit parameter list vs. an |
1183 | /// implicit (and empty) parameter list. |
1184 | LLVM_PREFERRED_TYPE(bool) |
1185 | unsigned ExplicitParams : 1; |
1186 | |
1187 | /// Whether this lambda had the result type explicitly specified. |
1188 | LLVM_PREFERRED_TYPE(bool) |
1189 | unsigned ExplicitResultType : 1; |
1190 | |
1191 | /// The number of captures. |
1192 | unsigned NumCaptures : 16; |
1193 | }; |
1194 | |
1195 | class RequiresExprBitfields { |
1196 | friend class ASTStmtReader; |
1197 | friend class ASTStmtWriter; |
1198 | friend class RequiresExpr; |
1199 | |
1200 | LLVM_PREFERRED_TYPE(ExprBitfields) |
1201 | unsigned : NumExprBits; |
1202 | |
1203 | LLVM_PREFERRED_TYPE(bool) |
1204 | unsigned IsSatisfied : 1; |
1205 | SourceLocation RequiresKWLoc; |
1206 | }; |
1207 | |
1208 | class ArrayTypeTraitExprBitfields { |
1209 | friend class ArrayTypeTraitExpr; |
1210 | friend class ASTStmtReader; |
1211 | LLVM_PREFERRED_TYPE(ExprBitfields) |
1212 | unsigned : NumExprBits; |
1213 | |
1214 | /// The trait. An ArrayTypeTrait enum in MSVC compat unsigned. |
1215 | LLVM_PREFERRED_TYPE(ArrayTypeTrait) |
1216 | unsigned ATT : 2; |
1217 | }; |
1218 | |
1219 | class ExpressionTraitExprBitfields { |
1220 | friend class ExpressionTraitExpr; |
1221 | friend class ASTStmtReader; |
1222 | LLVM_PREFERRED_TYPE(ExprBitfields) |
1223 | unsigned : NumExprBits; |
1224 | |
1225 | /// The trait. A ExpressionTrait enum in MSVC compatible unsigned. |
1226 | LLVM_PREFERRED_TYPE(ExpressionTrait) |
1227 | unsigned ET : 31; |
1228 | |
1229 | /// The value of the type trait. Unspecified if dependent. |
1230 | LLVM_PREFERRED_TYPE(bool) |
1231 | unsigned Value : 1; |
1232 | }; |
1233 | |
1234 | class CXXFoldExprBitfields { |
1235 | friend class CXXFoldExpr; |
1236 | friend class ASTStmtReader; |
1237 | friend class ASTStmtWriter; |
1238 | |
1239 | LLVM_PREFERRED_TYPE(ExprBitfields) |
1240 | unsigned : NumExprBits; |
1241 | |
1242 | BinaryOperatorKind Opcode; |
1243 | }; |
1244 | |
1245 | class PackIndexingExprBitfields { |
1246 | friend class PackIndexingExpr; |
1247 | friend class ASTStmtWriter; |
1248 | friend class ASTStmtReader; |
1249 | |
1250 | LLVM_PREFERRED_TYPE(ExprBitfields) |
1251 | unsigned : NumExprBits; |
1252 | // The size of the trailing expressions. |
1253 | unsigned TransformedExpressions : 31; |
1254 | |
1255 | LLVM_PREFERRED_TYPE(bool) |
1256 | unsigned FullySubstituted : 1; |
1257 | }; |
1258 | |
1259 | //===--- C++ Coroutines bitfields classes ---===// |
1260 | |
1261 | class CoawaitExprBitfields { |
1262 | friend class CoawaitExpr; |
1263 | |
1264 | LLVM_PREFERRED_TYPE(ExprBitfields) |
1265 | unsigned : NumExprBits; |
1266 | |
1267 | LLVM_PREFERRED_TYPE(bool) |
1268 | unsigned IsImplicit : 1; |
1269 | }; |
1270 | |
1271 | //===--- Obj-C Expression bitfields classes ---===// |
1272 | |
1273 | class ObjCIndirectCopyRestoreExprBitfields { |
1274 | friend class ObjCIndirectCopyRestoreExpr; |
1275 | |
1276 | LLVM_PREFERRED_TYPE(ExprBitfields) |
1277 | unsigned : NumExprBits; |
1278 | |
1279 | LLVM_PREFERRED_TYPE(bool) |
1280 | unsigned ShouldCopy : 1; |
1281 | }; |
1282 | |
1283 | //===--- Clang Extensions bitfields classes ---===// |
1284 | |
1285 | class OpaqueValueExprBitfields { |
1286 | friend class ASTStmtReader; |
1287 | friend class OpaqueValueExpr; |
1288 | |
1289 | LLVM_PREFERRED_TYPE(ExprBitfields) |
1290 | unsigned : NumExprBits; |
1291 | |
1292 | /// The OVE is a unique semantic reference to its source expression if this |
1293 | /// bit is set to true. |
1294 | LLVM_PREFERRED_TYPE(bool) |
1295 | unsigned IsUnique : 1; |
1296 | |
1297 | SourceLocation Loc; |
1298 | }; |
1299 | |
1300 | class ConvertVectorExprBitfields { |
1301 | friend class ConvertVectorExpr; |
1302 | |
1303 | LLVM_PREFERRED_TYPE(ExprBitfields) |
1304 | unsigned : NumExprBits; |
1305 | |
1306 | // |
1307 | /// This is only meaningful for operations on floating point |
1308 | /// types when additional values need to be in trailing storage. |
1309 | /// It is 0 otherwise. |
1310 | LLVM_PREFERRED_TYPE(bool) |
1311 | unsigned HasFPFeatures : 1; |
1312 | }; |
1313 | |
1314 | union { |
1315 | // Same order as in StmtNodes.td. |
1316 | // Statements |
1317 | StmtBitfields StmtBits; |
1318 | NullStmtBitfields NullStmtBits; |
1319 | CompoundStmtBitfields CompoundStmtBits; |
1320 | LabelStmtBitfields LabelStmtBits; |
1321 | AttributedStmtBitfields AttributedStmtBits; |
1322 | IfStmtBitfields IfStmtBits; |
1323 | SwitchStmtBitfields SwitchStmtBits; |
1324 | WhileStmtBitfields WhileStmtBits; |
1325 | DoStmtBitfields DoStmtBits; |
1326 | ForStmtBitfields ForStmtBits; |
1327 | GotoStmtBitfields GotoStmtBits; |
1328 | ContinueStmtBitfields ContinueStmtBits; |
1329 | BreakStmtBitfields BreakStmtBits; |
1330 | ReturnStmtBitfields ReturnStmtBits; |
1331 | SwitchCaseBitfields SwitchCaseBits; |
1332 | |
1333 | // Expressions |
1334 | ExprBitfields ExprBits; |
1335 | ConstantExprBitfields ConstantExprBits; |
1336 | PredefinedExprBitfields PredefinedExprBits; |
1337 | DeclRefExprBitfields DeclRefExprBits; |
1338 | FloatingLiteralBitfields FloatingLiteralBits; |
1339 | StringLiteralBitfields StringLiteralBits; |
1340 | CharacterLiteralBitfields CharacterLiteralBits; |
1341 | UnaryOperatorBitfields UnaryOperatorBits; |
1342 | UnaryExprOrTypeTraitExprBitfields UnaryExprOrTypeTraitExprBits; |
1343 | ArrayOrMatrixSubscriptExprBitfields ArrayOrMatrixSubscriptExprBits; |
1344 | CallExprBitfields CallExprBits; |
1345 | MemberExprBitfields MemberExprBits; |
1346 | CastExprBitfields CastExprBits; |
1347 | BinaryOperatorBitfields BinaryOperatorBits; |
1348 | InitListExprBitfields InitListExprBits; |
1349 | ParenListExprBitfields ParenListExprBits; |
1350 | GenericSelectionExprBitfields GenericSelectionExprBits; |
1351 | PseudoObjectExprBitfields PseudoObjectExprBits; |
1352 | SourceLocExprBitfields SourceLocExprBits; |
1353 | ParenExprBitfields ParenExprBits; |
1354 | ShuffleVectorExprBitfields ShuffleVectorExprBits; |
1355 | |
1356 | // GNU Extensions. |
1357 | StmtExprBitfields StmtExprBits; |
1358 | ChooseExprBitfields ChooseExprBits; |
1359 | |
1360 | // C++ Expressions |
1361 | CXXOperatorCallExprBitfields CXXOperatorCallExprBits; |
1362 | CXXRewrittenBinaryOperatorBitfields CXXRewrittenBinaryOperatorBits; |
1363 | CXXBoolLiteralExprBitfields CXXBoolLiteralExprBits; |
1364 | CXXNullPtrLiteralExprBitfields CXXNullPtrLiteralExprBits; |
1365 | CXXThisExprBitfields CXXThisExprBits; |
1366 | CXXThrowExprBitfields CXXThrowExprBits; |
1367 | CXXDefaultArgExprBitfields CXXDefaultArgExprBits; |
1368 | CXXDefaultInitExprBitfields CXXDefaultInitExprBits; |
1369 | CXXScalarValueInitExprBitfields CXXScalarValueInitExprBits; |
1370 | CXXNewExprBitfields CXXNewExprBits; |
1371 | CXXDeleteExprBitfields CXXDeleteExprBits; |
1372 | TypeTraitExprBitfields TypeTraitExprBits; |
1373 | DependentScopeDeclRefExprBitfields DependentScopeDeclRefExprBits; |
1374 | CXXConstructExprBitfields CXXConstructExprBits; |
1375 | ExprWithCleanupsBitfields ExprWithCleanupsBits; |
1376 | CXXUnresolvedConstructExprBitfields CXXUnresolvedConstructExprBits; |
1377 | CXXDependentScopeMemberExprBitfields CXXDependentScopeMemberExprBits; |
1378 | OverloadExprBitfields OverloadExprBits; |
1379 | UnresolvedLookupExprBitfields UnresolvedLookupExprBits; |
1380 | UnresolvedMemberExprBitfields UnresolvedMemberExprBits; |
1381 | CXXNoexceptExprBitfields CXXNoexceptExprBits; |
1382 | SubstNonTypeTemplateParmExprBitfields SubstNonTypeTemplateParmExprBits; |
1383 | LambdaExprBitfields LambdaExprBits; |
1384 | RequiresExprBitfields RequiresExprBits; |
1385 | ArrayTypeTraitExprBitfields ArrayTypeTraitExprBits; |
1386 | ExpressionTraitExprBitfields ExpressionTraitExprBits; |
1387 | CXXFoldExprBitfields CXXFoldExprBits; |
1388 | PackIndexingExprBitfields PackIndexingExprBits; |
1389 | |
1390 | // C++ Coroutines expressions |
1391 | CoawaitExprBitfields CoawaitBits; |
1392 | |
1393 | // Obj-C Expressions |
1394 | ObjCIndirectCopyRestoreExprBitfields ObjCIndirectCopyRestoreExprBits; |
1395 | |
1396 | // Clang Extensions |
1397 | OpaqueValueExprBitfields OpaqueValueExprBits; |
1398 | ConvertVectorExprBitfields ConvertVectorExprBits; |
1399 | }; |
1400 | |
1401 | public: |
1402 | // Only allow allocation of Stmts using the allocator in ASTContext |
1403 | // or by doing a placement new. |
1404 | void* operator new(size_t bytes, const ASTContext& C, |
1405 | unsigned alignment = 8); |
1406 | |
1407 | void* operator new(size_t bytes, const ASTContext* C, |
1408 | unsigned alignment = 8) { |
1409 | return operator new(bytes, C: *C, alignment); |
1410 | } |
1411 | |
1412 | void *operator new(size_t bytes, void *mem) noexcept { return mem; } |
1413 | |
1414 | void operator delete(void *, const ASTContext &, unsigned) noexcept {} |
1415 | void operator delete(void *, const ASTContext *, unsigned) noexcept {} |
1416 | void operator delete(void *, size_t) noexcept {} |
1417 | void operator delete(void *, void *) noexcept {} |
1418 | |
1419 | public: |
1420 | /// A placeholder type used to construct an empty shell of a |
1421 | /// type, that will be filled in later (e.g., by some |
1422 | /// de-serialization). |
1423 | struct EmptyShell {}; |
1424 | |
1425 | /// The likelihood of a branch being taken. |
1426 | enum Likelihood { |
1427 | LH_Unlikely = -1, ///< Branch has the [[unlikely]] attribute. |
1428 | LH_None, ///< No attribute set or branches of the IfStmt have |
1429 | ///< the same attribute. |
1430 | LH_Likely ///< Branch has the [[likely]] attribute. |
1431 | }; |
1432 | |
1433 | protected: |
1434 | /// Iterator for iterating over Stmt * arrays that contain only T *. |
1435 | /// |
1436 | /// This is needed because AST nodes use Stmt* arrays to store |
1437 | /// references to children (to be compatible with StmtIterator). |
1438 | template<typename T, typename TPtr = T *, typename StmtPtr = Stmt *> |
1439 | struct CastIterator |
1440 | : llvm::iterator_adaptor_base<CastIterator<T, TPtr, StmtPtr>, StmtPtr *, |
1441 | std::random_access_iterator_tag, TPtr> { |
1442 | using Base = typename CastIterator::iterator_adaptor_base; |
1443 | |
1444 | CastIterator() : Base(nullptr) {} |
1445 | CastIterator(StmtPtr *I) : Base(I) {} |
1446 | |
1447 | typename Base::value_type operator*() const { |
1448 | return cast_or_null<T>(*this->I); |
1449 | } |
1450 | }; |
1451 | |
1452 | /// Const iterator for iterating over Stmt * arrays that contain only T *. |
1453 | template <typename T> |
1454 | using ConstCastIterator = CastIterator<T, const T *const, const Stmt *const>; |
1455 | |
1456 | using ExprIterator = CastIterator<Expr>; |
1457 | using ConstExprIterator = ConstCastIterator<Expr>; |
1458 | |
1459 | private: |
1460 | /// Whether statistic collection is enabled. |
1461 | static bool StatisticsEnabled; |
1462 | |
1463 | protected: |
1464 | /// Construct an empty statement. |
1465 | explicit Stmt(StmtClass SC, EmptyShell) : Stmt(SC) {} |
1466 | |
1467 | public: |
1468 | Stmt() = delete; |
1469 | Stmt(const Stmt &) = delete; |
1470 | Stmt(Stmt &&) = delete; |
1471 | Stmt &operator=(const Stmt &) = delete; |
1472 | Stmt &operator=(Stmt &&) = delete; |
1473 | |
1474 | Stmt(StmtClass SC) { |
1475 | static_assert(sizeof(*this) <= 8, |
1476 | "changing bitfields changed sizeof(Stmt)"); |
1477 | static_assert(sizeof(*this) % alignof(void *) == 0, |
1478 | "Insufficient alignment!"); |
1479 | StmtBits.sClass = SC; |
1480 | if (StatisticsEnabled) Stmt::addStmtClass(s: SC); |
1481 | } |
1482 | |
1483 | StmtClass getStmtClass() const { |
1484 | return static_cast<StmtClass>(StmtBits.sClass); |
1485 | } |
1486 | |
1487 | const char *getStmtClassName() const; |
1488 | |
1489 | /// SourceLocation tokens are not useful in isolation - they are low level |
1490 | /// value objects created/interpreted by SourceManager. We assume AST |
1491 | /// clients will have a pointer to the respective SourceManager. |
1492 | SourceRange getSourceRange() const LLVM_READONLY; |
1493 | SourceLocation getBeginLoc() const LLVM_READONLY; |
1494 | SourceLocation getEndLoc() const LLVM_READONLY; |
1495 | |
1496 | // global temp stats (until we have a per-module visitor) |
1497 | static void addStmtClass(const StmtClass s); |
1498 | static void EnableStatistics(); |
1499 | static void PrintStats(); |
1500 | |
1501 | /// \returns the likelihood of a set of attributes. |
1502 | static Likelihood getLikelihood(ArrayRef<const Attr *> Attrs); |
1503 | |
1504 | /// \returns the likelihood of a statement. |
1505 | static Likelihood getLikelihood(const Stmt *S); |
1506 | |
1507 | /// \returns the likelihood attribute of a statement. |
1508 | static const Attr *getLikelihoodAttr(const Stmt *S); |
1509 | |
1510 | /// \returns the likelihood of the 'then' branch of an 'if' statement. The |
1511 | /// 'else' branch is required to determine whether both branches specify the |
1512 | /// same likelihood, which affects the result. |
1513 | static Likelihood getLikelihood(const Stmt *Then, const Stmt *Else); |
1514 | |
1515 | /// \returns whether the likelihood of the branches of an if statement are |
1516 | /// conflicting. When the first element is \c true there's a conflict and |
1517 | /// the Attr's are the conflicting attributes of the Then and Else Stmt. |
1518 | static std::tuple<bool, const Attr *, const Attr *> |
1519 | determineLikelihoodConflict(const Stmt *Then, const Stmt *Else); |
1520 | |
1521 | /// Dumps the specified AST fragment and all subtrees to |
1522 | /// \c llvm::errs(). |
1523 | void dump() const; |
1524 | void dump(raw_ostream &OS, const ASTContext &Context) const; |
1525 | |
1526 | /// \return Unique reproducible object identifier |
1527 | int64_t getID(const ASTContext &Context) const; |
1528 | |
1529 | /// dumpColor - same as dump(), but forces color highlighting. |
1530 | void dumpColor() const; |
1531 | |
1532 | /// dumpPretty/printPretty - These two methods do a "pretty print" of the AST |
1533 | /// back to its original source language syntax. |
1534 | void dumpPretty(const ASTContext &Context) const; |
1535 | void printPretty(raw_ostream &OS, PrinterHelper *Helper, |
1536 | const PrintingPolicy &Policy, unsigned Indentation = 0, |
1537 | StringRef NewlineSymbol = "\n", |
1538 | const ASTContext *Context = nullptr) const; |
1539 | void printPrettyControlled(raw_ostream &OS, PrinterHelper *Helper, |
1540 | const PrintingPolicy &Policy, |
1541 | unsigned Indentation = 0, |
1542 | StringRef NewlineSymbol = "\n", |
1543 | const ASTContext *Context = nullptr) const; |
1544 | |
1545 | /// Pretty-prints in JSON format. |
1546 | void printJson(raw_ostream &Out, PrinterHelper *Helper, |
1547 | const PrintingPolicy &Policy, bool AddQuotes) const; |
1548 | |
1549 | /// viewAST - Visualize an AST rooted at this Stmt* using GraphViz. Only |
1550 | /// works on systems with GraphViz (Mac OS X) or dot+gv installed. |
1551 | void viewAST() const; |
1552 | |
1553 | /// Skip no-op (attributed, compound) container stmts and skip captured |
1554 | /// stmt at the top, if \a IgnoreCaptured is true. |
1555 | Stmt *IgnoreContainers(bool IgnoreCaptured = false); |
1556 | const Stmt *IgnoreContainers(bool IgnoreCaptured = false) const { |
1557 | return const_cast<Stmt *>(this)->IgnoreContainers(IgnoreCaptured); |
1558 | } |
1559 | |
1560 | const Stmt *stripLabelLikeStatements() const; |
1561 | Stmt *stripLabelLikeStatements() { |
1562 | return const_cast<Stmt*>( |
1563 | const_cast<const Stmt*>(this)->stripLabelLikeStatements()); |
1564 | } |
1565 | |
1566 | /// Child Iterators: All subclasses must implement 'children' |
1567 | /// to permit easy iteration over the substatements/subexpressions of an |
1568 | /// AST node. This permits easy iteration over all nodes in the AST. |
1569 | using child_iterator = StmtIterator; |
1570 | using const_child_iterator = ConstStmtIterator; |
1571 | |
1572 | using child_range = llvm::iterator_range<child_iterator>; |
1573 | using const_child_range = llvm::iterator_range<const_child_iterator>; |
1574 | |
1575 | child_range children(); |
1576 | |
1577 | const_child_range children() const { |
1578 | auto Children = const_cast<Stmt *>(this)->children(); |
1579 | return const_child_range(Children.begin(), Children.end()); |
1580 | } |
1581 | |
1582 | child_iterator child_begin() { return children().begin(); } |
1583 | child_iterator child_end() { return children().end(); } |
1584 | |
1585 | const_child_iterator child_begin() const { return children().begin(); } |
1586 | const_child_iterator child_end() const { return children().end(); } |
1587 | |
1588 | /// Produce a unique representation of the given statement. |
1589 | /// |
1590 | /// \param ID once the profiling operation is complete, will contain |
1591 | /// the unique representation of the given statement. |
1592 | /// |
1593 | /// \param Context the AST context in which the statement resides |
1594 | /// |
1595 | /// \param Canonical whether the profile should be based on the canonical |
1596 | /// representation of this statement (e.g., where non-type template |
1597 | /// parameters are identified by index/level rather than their |
1598 | /// declaration pointers) or the exact representation of the statement as |
1599 | /// written in the source. |
1600 | /// \param ProfileLambdaExpr whether or not to profile lambda expressions. |
1601 | /// When false, the lambda expressions are never considered to be equal to |
1602 | /// other lambda expressions. When true, the lambda expressions with the same |
1603 | /// implementation will be considered to be the same. ProfileLambdaExpr should |
1604 | /// only be true when we try to merge two declarations within modules. |
1605 | void Profile(llvm::FoldingSetNodeID &ID, const ASTContext &Context, |
1606 | bool Canonical, bool ProfileLambdaExpr = false) const; |
1607 | |
1608 | /// Calculate a unique representation for a statement that is |
1609 | /// stable across compiler invocations. |
1610 | /// |
1611 | /// \param ID profile information will be stored in ID. |
1612 | /// |
1613 | /// \param Hash an ODRHash object which will be called where pointers would |
1614 | /// have been used in the Profile function. |
1615 | void ProcessODRHash(llvm::FoldingSetNodeID &ID, ODRHash& Hash) const; |
1616 | }; |
1617 | |
1618 | /// DeclStmt - Adaptor class for mixing declarations with statements and |
1619 | /// expressions. For example, CompoundStmt mixes statements, expressions |
1620 | /// and declarations (variables, types). Another example is ForStmt, where |
1621 | /// the first statement can be an expression or a declaration. |
1622 | class DeclStmt : public Stmt { |
1623 | DeclGroupRef DG; |
1624 | SourceLocation StartLoc, EndLoc; |
1625 | |
1626 | public: |
1627 | DeclStmt(DeclGroupRef dg, SourceLocation startLoc, SourceLocation endLoc) |
1628 | : Stmt(DeclStmtClass), DG(dg), StartLoc(startLoc), EndLoc(endLoc) {} |
1629 | |
1630 | /// Build an empty declaration statement. |
1631 | explicit DeclStmt(EmptyShell Empty) : Stmt(DeclStmtClass, Empty) {} |
1632 | |
1633 | /// isSingleDecl - This method returns true if this DeclStmt refers |
1634 | /// to a single Decl. |
1635 | bool isSingleDecl() const { return DG.isSingleDecl(); } |
1636 | |
1637 | const Decl *getSingleDecl() const { return DG.getSingleDecl(); } |
1638 | Decl *getSingleDecl() { return DG.getSingleDecl(); } |
1639 | |
1640 | const DeclGroupRef getDeclGroup() const { return DG; } |
1641 | DeclGroupRef getDeclGroup() { return DG; } |
1642 | void setDeclGroup(DeclGroupRef DGR) { DG = DGR; } |
1643 | |
1644 | void setStartLoc(SourceLocation L) { StartLoc = L; } |
1645 | SourceLocation getEndLoc() const { return EndLoc; } |
1646 | void setEndLoc(SourceLocation L) { EndLoc = L; } |
1647 | |
1648 | SourceLocation getBeginLoc() const LLVM_READONLY { return StartLoc; } |
1649 | |
1650 | static bool classof(const Stmt *T) { |
1651 | return T->getStmtClass() == DeclStmtClass; |
1652 | } |
1653 | |
1654 | // Iterators over subexpressions. |
1655 | child_range children() { |
1656 | return child_range(child_iterator(DG.begin(), DG.end()), |
1657 | child_iterator(DG.end(), DG.end())); |
1658 | } |
1659 | |
1660 | const_child_range children() const { |
1661 | auto Children = const_cast<DeclStmt *>(this)->children(); |
1662 | return const_child_range(Children); |
1663 | } |
1664 | |
1665 | using decl_iterator = DeclGroupRef::iterator; |
1666 | using const_decl_iterator = DeclGroupRef::const_iterator; |
1667 | using decl_range = llvm::iterator_range<decl_iterator>; |
1668 | using decl_const_range = llvm::iterator_range<const_decl_iterator>; |
1669 | |
1670 | decl_range decls() { return decl_range(decl_begin(), decl_end()); } |
1671 | |
1672 | decl_const_range decls() const { |
1673 | return decl_const_range(decl_begin(), decl_end()); |
1674 | } |
1675 | |
1676 | decl_iterator decl_begin() { return DG.begin(); } |
1677 | decl_iterator decl_end() { return DG.end(); } |
1678 | const_decl_iterator decl_begin() const { return DG.begin(); } |
1679 | const_decl_iterator decl_end() const { return DG.end(); } |
1680 | |
1681 | using reverse_decl_iterator = std::reverse_iterator<decl_iterator>; |
1682 | |
1683 | reverse_decl_iterator decl_rbegin() { |
1684 | return reverse_decl_iterator(decl_end()); |
1685 | } |
1686 | |
1687 | reverse_decl_iterator decl_rend() { |
1688 | return reverse_decl_iterator(decl_begin()); |
1689 | } |
1690 | }; |
1691 | |
1692 | /// NullStmt - This is the null statement ";": C99 6.8.3p3. |
1693 | /// |
1694 | class NullStmt : public Stmt { |
1695 | public: |
1696 | NullStmt(SourceLocation L, bool hasLeadingEmptyMacro = false) |
1697 | : Stmt(NullStmtClass) { |
1698 | NullStmtBits.HasLeadingEmptyMacro = hasLeadingEmptyMacro; |
1699 | setSemiLoc(L); |
1700 | } |
1701 | |
1702 | /// Build an empty null statement. |
1703 | explicit NullStmt(EmptyShell Empty) : Stmt(NullStmtClass, Empty) {} |
1704 | |
1705 | SourceLocation getSemiLoc() const { return NullStmtBits.SemiLoc; } |
1706 | void setSemiLoc(SourceLocation L) { NullStmtBits.SemiLoc = L; } |
1707 | |
1708 | bool hasLeadingEmptyMacro() const { |
1709 | return NullStmtBits.HasLeadingEmptyMacro; |
1710 | } |
1711 | |
1712 | SourceLocation getBeginLoc() const { return getSemiLoc(); } |
1713 | SourceLocation getEndLoc() const { return getSemiLoc(); } |
1714 | |
1715 | static bool classof(const Stmt *T) { |
1716 | return T->getStmtClass() == NullStmtClass; |
1717 | } |
1718 | |
1719 | child_range children() { |
1720 | return child_range(child_iterator(), child_iterator()); |
1721 | } |
1722 | |
1723 | const_child_range children() const { |
1724 | return const_child_range(const_child_iterator(), const_child_iterator()); |
1725 | } |
1726 | }; |
1727 | |
1728 | /// CompoundStmt - This represents a group of statements like { stmt stmt }. |
1729 | class CompoundStmt final |
1730 | : public Stmt, |
1731 | private llvm::TrailingObjects<CompoundStmt, Stmt *, FPOptionsOverride> { |
1732 | friend class ASTStmtReader; |
1733 | friend TrailingObjects; |
1734 | |
1735 | /// The location of the opening "{". |
1736 | SourceLocation LBraceLoc; |
1737 | |
1738 | /// The location of the closing "}". |
1739 | SourceLocation RBraceLoc; |
1740 | |
1741 | CompoundStmt(ArrayRef<Stmt *> Stmts, FPOptionsOverride FPFeatures, |
1742 | SourceLocation LB, SourceLocation RB); |
1743 | explicit CompoundStmt(EmptyShell Empty) : Stmt(CompoundStmtClass, Empty) {} |
1744 | |
1745 | void setStmts(ArrayRef<Stmt *> Stmts); |
1746 | |
1747 | /// Set FPOptionsOverride in trailing storage. Used only by Serialization. |
1748 | void setStoredFPFeatures(FPOptionsOverride F) { |
1749 | assert(hasStoredFPFeatures()); |
1750 | *getTrailingObjects<FPOptionsOverride>() = F; |
1751 | } |
1752 | |
1753 | size_t numTrailingObjects(OverloadToken<Stmt *>) const { |
1754 | return CompoundStmtBits.NumStmts; |
1755 | } |
1756 | |
1757 | public: |
1758 | static CompoundStmt *Create(const ASTContext &C, ArrayRef<Stmt *> Stmts, |
1759 | FPOptionsOverride FPFeatures, SourceLocation LB, |
1760 | SourceLocation RB); |
1761 | |
1762 | // Build an empty compound statement with a location. |
1763 | explicit CompoundStmt(SourceLocation Loc) : CompoundStmt(Loc, Loc) {} |
1764 | |
1765 | CompoundStmt(SourceLocation Loc, SourceLocation EndLoc) |
1766 | : Stmt(CompoundStmtClass), LBraceLoc(Loc), RBraceLoc(EndLoc) { |
1767 | CompoundStmtBits.NumStmts = 0; |
1768 | CompoundStmtBits.HasFPFeatures = 0; |
1769 | } |
1770 | |
1771 | // Build an empty compound statement. |
1772 | static CompoundStmt *CreateEmpty(const ASTContext &C, unsigned NumStmts, |
1773 | bool HasFPFeatures); |
1774 | |
1775 | bool body_empty() const { return CompoundStmtBits.NumStmts == 0; } |
1776 | unsigned size() const { return CompoundStmtBits.NumStmts; } |
1777 | |
1778 | bool hasStoredFPFeatures() const { return CompoundStmtBits.HasFPFeatures; } |
1779 | |
1780 | /// Get FPOptionsOverride from trailing storage. |
1781 | FPOptionsOverride getStoredFPFeatures() const { |
1782 | assert(hasStoredFPFeatures()); |
1783 | return *getTrailingObjects<FPOptionsOverride>(); |
1784 | } |
1785 | |
1786 | /// Get the store FPOptionsOverride or default if not stored. |
1787 | FPOptionsOverride getStoredFPFeaturesOrDefault() const { |
1788 | return hasStoredFPFeatures() ? getStoredFPFeatures() : FPOptionsOverride(); |
1789 | } |
1790 | |
1791 | using body_iterator = Stmt **; |
1792 | using body_range = llvm::iterator_range<body_iterator>; |
1793 | |
1794 | body_range body() { return body_range(body_begin(), body_end()); } |
1795 | body_iterator body_begin() { return getTrailingObjects<Stmt *>(); } |
1796 | body_iterator body_end() { return body_begin() + size(); } |
1797 | Stmt *body_front() { return !body_empty() ? body_begin()[0] : nullptr; } |
1798 | |
1799 | Stmt *body_back() { |
1800 | return !body_empty() ? body_begin()[size() - 1] : nullptr; |
1801 | } |
1802 | |
1803 | using const_body_iterator = Stmt *const *; |
1804 | using body_const_range = llvm::iterator_range<const_body_iterator>; |
1805 | |
1806 | body_const_range body() const { |
1807 | return body_const_range(body_begin(), body_end()); |
1808 | } |
1809 | |
1810 | const_body_iterator body_begin() const { |
1811 | return getTrailingObjects<Stmt *>(); |
1812 | } |
1813 | |
1814 | const_body_iterator body_end() const { return body_begin() + size(); } |
1815 | |
1816 | const Stmt *body_front() const { |
1817 | return !body_empty() ? body_begin()[0] : nullptr; |
1818 | } |
1819 | |
1820 | const Stmt *body_back() const { |
1821 | return !body_empty() ? body_begin()[size() - 1] : nullptr; |
1822 | } |
1823 | |
1824 | using reverse_body_iterator = std::reverse_iterator<body_iterator>; |
1825 | |
1826 | reverse_body_iterator body_rbegin() { |
1827 | return reverse_body_iterator(body_end()); |
1828 | } |
1829 | |
1830 | reverse_body_iterator body_rend() { |
1831 | return reverse_body_iterator(body_begin()); |
1832 | } |
1833 | |
1834 | using const_reverse_body_iterator = |
1835 | std::reverse_iterator<const_body_iterator>; |
1836 | |
1837 | const_reverse_body_iterator body_rbegin() const { |
1838 | return const_reverse_body_iterator(body_end()); |
1839 | } |
1840 | |
1841 | const_reverse_body_iterator body_rend() const { |
1842 | return const_reverse_body_iterator(body_begin()); |
1843 | } |
1844 | |
1845 | // Get the Stmt that StmtExpr would consider to be the result of this |
1846 | // compound statement. This is used by StmtExpr to properly emulate the GCC |
1847 | // compound expression extension, which ignores trailing NullStmts when |
1848 | // getting the result of the expression. |
1849 | // i.e. ({ 5;;; }) |
1850 | // ^^ ignored |
1851 | // If we don't find something that isn't a NullStmt, just return the last |
1852 | // Stmt. |
1853 | Stmt *getStmtExprResult() { |
1854 | for (auto *B : llvm::reverse(body())) { |
1855 | if (!isa<NullStmt>(B)) |
1856 | return B; |
1857 | } |
1858 | return body_back(); |
1859 | } |
1860 | |
1861 | const Stmt *getStmtExprResult() const { |
1862 | return const_cast<CompoundStmt *>(this)->getStmtExprResult(); |
1863 | } |
1864 | |
1865 | SourceLocation getBeginLoc() const { return LBraceLoc; } |
1866 | SourceLocation getEndLoc() const { return RBraceLoc; } |
1867 | |
1868 | SourceLocation getLBracLoc() const { return LBraceLoc; } |
1869 | SourceLocation getRBracLoc() const { return RBraceLoc; } |
1870 | |
1871 | static bool classof(const Stmt *T) { |
1872 | return T->getStmtClass() == CompoundStmtClass; |
1873 | } |
1874 | |
1875 | // Iterators |
1876 | child_range children() { return child_range(body_begin(), body_end()); } |
1877 | |
1878 | const_child_range children() const { |
1879 | return const_child_range(body_begin(), body_end()); |
1880 | } |
1881 | }; |
1882 | |
1883 | // SwitchCase is the base class for CaseStmt and DefaultStmt, |
1884 | class SwitchCase : public Stmt { |
1885 | protected: |
1886 | /// The location of the ":". |
1887 | SourceLocation ColonLoc; |
1888 | |
1889 | // The location of the "case" or "default" keyword. Stored in SwitchCaseBits. |
1890 | // SourceLocation KeywordLoc; |
1891 | |
1892 | /// A pointer to the following CaseStmt or DefaultStmt class, |
1893 | /// used by SwitchStmt. |
1894 | SwitchCase *NextSwitchCase = nullptr; |
1895 | |
1896 | SwitchCase(StmtClass SC, SourceLocation KWLoc, SourceLocation ColonLoc) |
1897 | : Stmt(SC), ColonLoc(ColonLoc) { |
1898 | setKeywordLoc(KWLoc); |
1899 | } |
1900 | |
1901 | SwitchCase(StmtClass SC, EmptyShell) : Stmt(SC) {} |
1902 | |
1903 | public: |
1904 | const SwitchCase *getNextSwitchCase() const { return NextSwitchCase; } |
1905 | SwitchCase *getNextSwitchCase() { return NextSwitchCase; } |
1906 | void setNextSwitchCase(SwitchCase *SC) { NextSwitchCase = SC; } |
1907 | |
1908 | SourceLocation getKeywordLoc() const { return SwitchCaseBits.KeywordLoc; } |
1909 | void setKeywordLoc(SourceLocation L) { SwitchCaseBits.KeywordLoc = L; } |
1910 | SourceLocation getColonLoc() const { return ColonLoc; } |
1911 | void setColonLoc(SourceLocation L) { ColonLoc = L; } |
1912 | |
1913 | inline Stmt *getSubStmt(); |
1914 | const Stmt *getSubStmt() const { |
1915 | return const_cast<SwitchCase *>(this)->getSubStmt(); |
1916 | } |
1917 | |
1918 | SourceLocation getBeginLoc() const { return getKeywordLoc(); } |
1919 | inline SourceLocation getEndLoc() const LLVM_READONLY; |
1920 | |
1921 | static bool classof(const Stmt *T) { |
1922 | return T->getStmtClass() == CaseStmtClass || |
1923 | T->getStmtClass() == DefaultStmtClass; |
1924 | } |
1925 | }; |
1926 | |
1927 | /// CaseStmt - Represent a case statement. It can optionally be a GNU case |
1928 | /// statement of the form LHS ... RHS representing a range of cases. |
1929 | class CaseStmt final |
1930 | : public SwitchCase, |
1931 | private llvm::TrailingObjects<CaseStmt, Stmt *, SourceLocation> { |
1932 | friend TrailingObjects; |
1933 | |
1934 | // CaseStmt is followed by several trailing objects, some of which optional. |
1935 | // Note that it would be more convenient to put the optional trailing objects |
1936 | // at the end but this would impact children(). |
1937 | // The trailing objects are in order: |
1938 | // |
1939 | // * A "Stmt *" for the LHS of the case statement. Always present. |
1940 | // |
1941 | // * A "Stmt *" for the RHS of the case statement. This is a GNU extension |
1942 | // which allow ranges in cases statement of the form LHS ... RHS. |
1943 | // Present if and only if caseStmtIsGNURange() is true. |
1944 | // |
1945 | // * A "Stmt *" for the substatement of the case statement. Always present. |
1946 | // |
1947 | // * A SourceLocation for the location of the ... if this is a case statement |
1948 | // with a range. Present if and only if caseStmtIsGNURange() is true. |
1949 | enum { LhsOffset = 0, SubStmtOffsetFromRhs = 1 }; |
1950 | enum { NumMandatoryStmtPtr = 2 }; |
1951 | |
1952 | unsigned numTrailingObjects(OverloadToken<Stmt *>) const { |
1953 | return NumMandatoryStmtPtr + caseStmtIsGNURange(); |
1954 | } |
1955 | |
1956 | unsigned lhsOffset() const { return LhsOffset; } |
1957 | unsigned rhsOffset() const { return LhsOffset + caseStmtIsGNURange(); } |
1958 | unsigned subStmtOffset() const { return rhsOffset() + SubStmtOffsetFromRhs; } |
1959 | |
1960 | /// Build a case statement assuming that the storage for the |
1961 | /// trailing objects has been properly allocated. |
1962 | CaseStmt(Expr *lhs, Expr *rhs, SourceLocation caseLoc, |
1963 | SourceLocation ellipsisLoc, SourceLocation colonLoc) |
1964 | : SwitchCase(CaseStmtClass, caseLoc, colonLoc) { |
1965 | // Handle GNU case statements of the form LHS ... RHS. |
1966 | bool IsGNURange = rhs != nullptr; |
1967 | SwitchCaseBits.CaseStmtIsGNURange = IsGNURange; |
1968 | setLHS(lhs); |
1969 | setSubStmt(nullptr); |
1970 | if (IsGNURange) { |
1971 | setRHS(rhs); |
1972 | setEllipsisLoc(ellipsisLoc); |
1973 | } |
1974 | } |
1975 | |
1976 | /// Build an empty switch case statement. |
1977 | explicit CaseStmt(EmptyShell Empty, bool CaseStmtIsGNURange) |
1978 | : SwitchCase(CaseStmtClass, Empty) { |
1979 | SwitchCaseBits.CaseStmtIsGNURange = CaseStmtIsGNURange; |
1980 | } |
1981 | |
1982 | public: |
1983 | /// Build a case statement. |
1984 | static CaseStmt *Create(const ASTContext &Ctx, Expr *lhs, Expr *rhs, |
1985 | SourceLocation caseLoc, SourceLocation ellipsisLoc, |
1986 | SourceLocation colonLoc); |
1987 | |
1988 | /// Build an empty case statement. |
1989 | static CaseStmt *CreateEmpty(const ASTContext &Ctx, bool CaseStmtIsGNURange); |
1990 | |
1991 | /// True if this case statement is of the form case LHS ... RHS, which |
1992 | /// is a GNU extension. In this case the RHS can be obtained with getRHS() |
1993 | /// and the location of the ellipsis can be obtained with getEllipsisLoc(). |
1994 | bool caseStmtIsGNURange() const { return SwitchCaseBits.CaseStmtIsGNURange; } |
1995 | |
1996 | SourceLocation getCaseLoc() const { return getKeywordLoc(); } |
1997 | void setCaseLoc(SourceLocation L) { setKeywordLoc(L); } |
1998 | |
1999 | /// Get the location of the ... in a case statement of the form LHS ... RHS. |
2000 | SourceLocation getEllipsisLoc() const { |
2001 | return caseStmtIsGNURange() ? *getTrailingObjects<SourceLocation>() |
2002 | : SourceLocation(); |
2003 | } |
2004 | |
2005 | /// Set the location of the ... in a case statement of the form LHS ... RHS. |
2006 | /// Assert that this case statement is of this form. |
2007 | void setEllipsisLoc(SourceLocation L) { |
2008 | assert( |
2009 | caseStmtIsGNURange() && |
2010 | "setEllipsisLoc but this is not a case stmt of the form LHS ... RHS!"); |
2011 | *getTrailingObjects<SourceLocation>() = L; |
2012 | } |
2013 | |
2014 | Expr *getLHS() { |
2015 | return reinterpret_cast<Expr *>(getTrailingObjects<Stmt *>()[lhsOffset()]); |
2016 | } |
2017 | |
2018 | const Expr *getLHS() const { |
2019 | return reinterpret_cast<Expr *>(getTrailingObjects<Stmt *>()[lhsOffset()]); |
2020 | } |
2021 | |
2022 | void setLHS(Expr *Val) { |
2023 | getTrailingObjects<Stmt *>()[lhsOffset()] = reinterpret_cast<Stmt *>(Val); |
2024 | } |
2025 | |
2026 | Expr *getRHS() { |
2027 | return caseStmtIsGNURange() ? reinterpret_cast<Expr *>( |
2028 | getTrailingObjects<Stmt *>()[rhsOffset()]) |
2029 | : nullptr; |
2030 | } |
2031 | |
2032 | const Expr *getRHS() const { |
2033 | return caseStmtIsGNURange() ? reinterpret_cast<Expr *>( |
2034 | getTrailingObjects<Stmt *>()[rhsOffset()]) |
2035 | : nullptr; |
2036 | } |
2037 | |
2038 | void setRHS(Expr *Val) { |
2039 | assert(caseStmtIsGNURange() && |
2040 | "setRHS but this is not a case stmt of the form LHS ... RHS!"); |
2041 | getTrailingObjects<Stmt *>()[rhsOffset()] = reinterpret_cast<Stmt *>(Val); |
2042 | } |
2043 | |
2044 | Stmt *getSubStmt() { return getTrailingObjects<Stmt *>()[subStmtOffset()]; } |
2045 | const Stmt *getSubStmt() const { |
2046 | return getTrailingObjects<Stmt *>()[subStmtOffset()]; |
2047 | } |
2048 | |
2049 | void setSubStmt(Stmt *S) { |
2050 | getTrailingObjects<Stmt *>()[subStmtOffset()] = S; |
2051 | } |
2052 | |
2053 | SourceLocation getBeginLoc() const { return getKeywordLoc(); } |
2054 | SourceLocation getEndLoc() const LLVM_READONLY { |
2055 | // Handle deeply nested case statements with iteration instead of recursion. |
2056 | const CaseStmt *CS = this; |
2057 | while (const auto *CS2 = dyn_cast<CaseStmt>(CS->getSubStmt())) |
2058 | CS = CS2; |
2059 | |
2060 | return CS->getSubStmt()->getEndLoc(); |
2061 | } |
2062 | |
2063 | static bool classof(const Stmt *T) { |
2064 | return T->getStmtClass() == CaseStmtClass; |
2065 | } |
2066 | |
2067 | // Iterators |
2068 | child_range children() { |
2069 | return child_range(getTrailingObjects<Stmt *>(), |
2070 | getTrailingObjects<Stmt *>() + |
2071 | numTrailingObjects(OverloadToken<Stmt *>())); |
2072 | } |
2073 | |
2074 | const_child_range children() const { |
2075 | return const_child_range(getTrailingObjects<Stmt *>(), |
2076 | getTrailingObjects<Stmt *>() + |
2077 | numTrailingObjects(OverloadToken<Stmt *>())); |
2078 | } |
2079 | }; |
2080 | |
2081 | class DefaultStmt : public SwitchCase { |
2082 | Stmt *SubStmt; |
2083 | |
2084 | public: |
2085 | DefaultStmt(SourceLocation DL, SourceLocation CL, Stmt *substmt) |
2086 | : SwitchCase(DefaultStmtClass, DL, CL), SubStmt(substmt) {} |
2087 | |
2088 | /// Build an empty default statement. |
2089 | explicit DefaultStmt(EmptyShell Empty) |
2090 | : SwitchCase(DefaultStmtClass, Empty) {} |
2091 | |
2092 | Stmt *getSubStmt() { return SubStmt; } |
2093 | const Stmt *getSubStmt() const { return SubStmt; } |
2094 | void setSubStmt(Stmt *S) { SubStmt = S; } |
2095 | |
2096 | SourceLocation getDefaultLoc() const { return getKeywordLoc(); } |
2097 | void setDefaultLoc(SourceLocation L) { setKeywordLoc(L); } |
2098 | |
2099 | SourceLocation getBeginLoc() const { return getKeywordLoc(); } |
2100 | SourceLocation getEndLoc() const LLVM_READONLY { |
2101 | return SubStmt->getEndLoc(); |
2102 | } |
2103 | |
2104 | static bool classof(const Stmt *T) { |
2105 | return T->getStmtClass() == DefaultStmtClass; |
2106 | } |
2107 | |
2108 | // Iterators |
2109 | child_range children() { return child_range(&SubStmt, &SubStmt + 1); } |
2110 | |
2111 | const_child_range children() const { |
2112 | return const_child_range(&SubStmt, &SubStmt + 1); |
2113 | } |
2114 | }; |
2115 | |
2116 | SourceLocation SwitchCase::getEndLoc() const { |
2117 | if (const auto *CS = dyn_cast<CaseStmt>(this)) |
2118 | return CS->getEndLoc(); |
2119 | else if (const auto *DS = dyn_cast<DefaultStmt>(this)) |
2120 | return DS->getEndLoc(); |
2121 | llvm_unreachable("SwitchCase is neither a CaseStmt nor a DefaultStmt!"); |
2122 | } |
2123 | |
2124 | Stmt *SwitchCase::getSubStmt() { |
2125 | if (auto *CS = dyn_cast<CaseStmt>(this)) |
2126 | return CS->getSubStmt(); |
2127 | else if (auto *DS = dyn_cast<DefaultStmt>(this)) |
2128 | return DS->getSubStmt(); |
2129 | llvm_unreachable("SwitchCase is neither a CaseStmt nor a DefaultStmt!"); |
2130 | } |
2131 | |
2132 | /// Represents a statement that could possibly have a value and type. This |
2133 | /// covers expression-statements, as well as labels and attributed statements. |
2134 | /// |
2135 | /// Value statements have a special meaning when they are the last non-null |
2136 | /// statement in a GNU statement expression, where they determine the value |
2137 | /// of the statement expression. |
2138 | class ValueStmt : public Stmt { |
2139 | protected: |
2140 | using Stmt::Stmt; |
2141 | |
2142 | public: |
2143 | const Expr *getExprStmt() const; |
2144 | Expr *getExprStmt() { |
2145 | const ValueStmt *ConstThis = this; |
2146 | return const_cast<Expr*>(ConstThis->getExprStmt()); |
2147 | } |
2148 | |
2149 | static bool classof(const Stmt *T) { |
2150 | return T->getStmtClass() >= firstValueStmtConstant && |
2151 | T->getStmtClass() <= lastValueStmtConstant; |
2152 | } |
2153 | }; |
2154 | |
2155 | /// LabelStmt - Represents a label, which has a substatement. For example: |
2156 | /// foo: return; |
2157 | class LabelStmt : public ValueStmt { |
2158 | LabelDecl *TheDecl; |
2159 | Stmt *SubStmt; |
2160 | bool SideEntry = false; |
2161 | |
2162 | public: |
2163 | /// Build a label statement. |
2164 | LabelStmt(SourceLocation IL, LabelDecl *D, Stmt *substmt) |
2165 | : ValueStmt(LabelStmtClass), TheDecl(D), SubStmt(substmt) { |
2166 | setIdentLoc(IL); |
2167 | } |
2168 | |
2169 | /// Build an empty label statement. |
2170 | explicit LabelStmt(EmptyShell Empty) : ValueStmt(LabelStmtClass, Empty) {} |
2171 | |
2172 | SourceLocation getIdentLoc() const { return LabelStmtBits.IdentLoc; } |
2173 | void setIdentLoc(SourceLocation L) { LabelStmtBits.IdentLoc = L; } |
2174 | |
2175 | LabelDecl *getDecl() const { return TheDecl; } |
2176 | void setDecl(LabelDecl *D) { TheDecl = D; } |
2177 | |
2178 | const char *getName() const; |
2179 | Stmt *getSubStmt() { return SubStmt; } |
2180 | |
2181 | const Stmt *getSubStmt() const { return SubStmt; } |
2182 | void setSubStmt(Stmt *SS) { SubStmt = SS; } |
2183 | |
2184 | SourceLocation getBeginLoc() const { return getIdentLoc(); } |
2185 | SourceLocation getEndLoc() const LLVM_READONLY { return SubStmt->getEndLoc();} |
2186 | |
2187 | child_range children() { return child_range(&SubStmt, &SubStmt + 1); } |
2188 | |
2189 | const_child_range children() const { |
2190 | return const_child_range(&SubStmt, &SubStmt + 1); |
2191 | } |
2192 | |
2193 | static bool classof(const Stmt *T) { |
2194 | return T->getStmtClass() == LabelStmtClass; |
2195 | } |
2196 | bool isSideEntry() const { return SideEntry; } |
2197 | void setSideEntry(bool SE) { SideEntry = SE; } |
2198 | }; |
2199 | |
2200 | /// Represents an attribute applied to a statement. |
2201 | /// |
2202 | /// Represents an attribute applied to a statement. For example: |
2203 | /// [[omp::for(...)]] for (...) { ... } |
2204 | class AttributedStmt final |
2205 | : public ValueStmt, |
2206 | private llvm::TrailingObjects<AttributedStmt, const Attr *> { |
2207 | friend class ASTStmtReader; |
2208 | friend TrailingObjects; |
2209 | |
2210 | Stmt *SubStmt; |
2211 | |
2212 | AttributedStmt(SourceLocation Loc, ArrayRef<const Attr *> Attrs, |
2213 | Stmt *SubStmt) |
2214 | : ValueStmt(AttributedStmtClass), SubStmt(SubStmt) { |
2215 | AttributedStmtBits.NumAttrs = Attrs.size(); |
2216 | AttributedStmtBits.AttrLoc = Loc; |
2217 | std::copy(Attrs.begin(), Attrs.end(), getAttrArrayPtr()); |
2218 | } |
2219 | |
2220 | explicit AttributedStmt(EmptyShell Empty, unsigned NumAttrs) |
2221 | : ValueStmt(AttributedStmtClass, Empty) { |
2222 | AttributedStmtBits.NumAttrs = NumAttrs; |
2223 | AttributedStmtBits.AttrLoc = SourceLocation{}; |
2224 | std::fill_n(getAttrArrayPtr(), NumAttrs, nullptr); |
2225 | } |
2226 | |
2227 | const Attr *const *getAttrArrayPtr() const { return getTrailingObjects(); } |
2228 | const Attr **getAttrArrayPtr() { return getTrailingObjects(); } |
2229 | |
2230 | public: |
2231 | static AttributedStmt *Create(const ASTContext &C, SourceLocation Loc, |
2232 | ArrayRef<const Attr *> Attrs, Stmt *SubStmt); |
2233 | |
2234 | // Build an empty attributed statement. |
2235 | static AttributedStmt *CreateEmpty(const ASTContext &C, unsigned NumAttrs); |
2236 | |
2237 | SourceLocation getAttrLoc() const { return AttributedStmtBits.AttrLoc; } |
2238 | ArrayRef<const Attr *> getAttrs() const { |
2239 | return llvm::ArrayRef(getAttrArrayPtr(), AttributedStmtBits.NumAttrs); |
2240 | } |
2241 | |
2242 | Stmt *getSubStmt() { return SubStmt; } |
2243 | const Stmt *getSubStmt() const { return SubStmt; } |
2244 | |
2245 | SourceLocation getBeginLoc() const { return getAttrLoc(); } |
2246 | SourceLocation getEndLoc() const LLVM_READONLY { return SubStmt->getEndLoc();} |
2247 | |
2248 | child_range children() { return child_range(&SubStmt, &SubStmt + 1); } |
2249 | |
2250 | const_child_range children() const { |
2251 | return const_child_range(&SubStmt, &SubStmt + 1); |
2252 | } |
2253 | |
2254 | static bool classof(const Stmt *T) { |
2255 | return T->getStmtClass() == AttributedStmtClass; |
2256 | } |
2257 | }; |
2258 | |
2259 | /// IfStmt - This represents an if/then/else. |
2260 | class IfStmt final |
2261 | : public Stmt, |
2262 | private llvm::TrailingObjects<IfStmt, Stmt *, SourceLocation> { |
2263 | friend TrailingObjects; |
2264 | |
2265 | // IfStmt is followed by several trailing objects, some of which optional. |
2266 | // Note that it would be more convenient to put the optional trailing |
2267 | // objects at then end but this would change the order of the children. |
2268 | // The trailing objects are in order: |
2269 | // |
2270 | // * A "Stmt *" for the init statement. |
2271 | // Present if and only if hasInitStorage(). |
2272 | // |
2273 | // * A "Stmt *" for the condition variable. |
2274 | // Present if and only if hasVarStorage(). This is in fact a "DeclStmt *". |
2275 | // |
2276 | // * A "Stmt *" for the condition. |
2277 | // Always present. This is in fact a "Expr *". |
2278 | // |
2279 | // * A "Stmt *" for the then statement. |
2280 | // Always present. |
2281 | // |
2282 | // * A "Stmt *" for the else statement. |
2283 | // Present if and only if hasElseStorage(). |
2284 | // |
2285 | // * A "SourceLocation" for the location of the "else". |
2286 | // Present if and only if hasElseStorage(). |
2287 | enum { InitOffset = 0, ThenOffsetFromCond = 1, ElseOffsetFromCond = 2 }; |
2288 | enum { NumMandatoryStmtPtr = 2 }; |
2289 | SourceLocation LParenLoc; |
2290 | SourceLocation RParenLoc; |
2291 | |
2292 | unsigned numTrailingObjects(OverloadToken<Stmt *>) const { |
2293 | return NumMandatoryStmtPtr + hasElseStorage() + hasVarStorage() + |
2294 | hasInitStorage(); |
2295 | } |
2296 | |
2297 | unsigned numTrailingObjects(OverloadToken<SourceLocation>) const { |
2298 | return hasElseStorage(); |
2299 | } |
2300 | |
2301 | unsigned initOffset() const { return InitOffset; } |
2302 | unsigned varOffset() const { return InitOffset + hasInitStorage(); } |
2303 | unsigned condOffset() const { |
2304 | return InitOffset + hasInitStorage() + hasVarStorage(); |
2305 | } |
2306 | unsigned thenOffset() const { return condOffset() + ThenOffsetFromCond; } |
2307 | unsigned elseOffset() const { return condOffset() + ElseOffsetFromCond; } |
2308 | |
2309 | /// Build an if/then/else statement. |
2310 | IfStmt(const ASTContext &Ctx, SourceLocation IL, IfStatementKind Kind, |
2311 | Stmt *Init, VarDecl *Var, Expr *Cond, SourceLocation LParenLoc, |
2312 | SourceLocation RParenLoc, Stmt *Then, SourceLocation EL, Stmt *Else); |
2313 | |
2314 | /// Build an empty if/then/else statement. |
2315 | explicit IfStmt(EmptyShell Empty, bool HasElse, bool HasVar, bool HasInit); |
2316 | |
2317 | public: |
2318 | /// Create an IfStmt. |
2319 | static IfStmt *Create(const ASTContext &Ctx, SourceLocation IL, |
2320 | IfStatementKind Kind, Stmt *Init, VarDecl *Var, |
2321 | Expr *Cond, SourceLocation LPL, SourceLocation RPL, |
2322 | Stmt *Then, SourceLocation EL = SourceLocation(), |
2323 | Stmt *Else = nullptr); |
2324 | |
2325 | /// Create an empty IfStmt optionally with storage for an else statement, |
2326 | /// condition variable and init expression. |
2327 | static IfStmt *CreateEmpty(const ASTContext &Ctx, bool HasElse, bool HasVar, |
2328 | bool HasInit); |
2329 | |
2330 | /// True if this IfStmt has the storage for an init statement. |
2331 | bool hasInitStorage() const { return IfStmtBits.HasInit; } |
2332 | |
2333 | /// True if this IfStmt has storage for a variable declaration. |
2334 | bool hasVarStorage() const { return IfStmtBits.HasVar; } |
2335 | |
2336 | /// True if this IfStmt has storage for an else statement. |
2337 | bool hasElseStorage() const { return IfStmtBits.HasElse; } |
2338 | |
2339 | Expr *getCond() { |
2340 | return reinterpret_cast<Expr *>(getTrailingObjects<Stmt *>()[condOffset()]); |
2341 | } |
2342 | |
2343 | const Expr *getCond() const { |
2344 | return reinterpret_cast<Expr *>(getTrailingObjects<Stmt *>()[condOffset()]); |
2345 | } |
2346 | |
2347 | void setCond(Expr *Cond) { |
2348 | getTrailingObjects<Stmt *>()[condOffset()] = reinterpret_cast<Stmt *>(Cond); |
2349 | } |
2350 | |
2351 | Stmt *getThen() { return getTrailingObjects<Stmt *>()[thenOffset()]; } |
2352 | const Stmt *getThen() const { |
2353 | return getTrailingObjects<Stmt *>()[thenOffset()]; |
2354 | } |
2355 | |
2356 | void setThen(Stmt *Then) { |
2357 | getTrailingObjects<Stmt *>()[thenOffset()] = Then; |
2358 | } |
2359 | |
2360 | Stmt *getElse() { |
2361 | return hasElseStorage() ? getTrailingObjects<Stmt *>()[elseOffset()] |
2362 | : nullptr; |
2363 | } |
2364 | |
2365 | const Stmt *getElse() const { |
2366 | return hasElseStorage() ? getTrailingObjects<Stmt *>()[elseOffset()] |
2367 | : nullptr; |
2368 | } |
2369 | |
2370 | void setElse(Stmt *Else) { |
2371 | assert(hasElseStorage() && |
2372 | "This if statement has no storage for an else statement!"); |
2373 | getTrailingObjects<Stmt *>()[elseOffset()] = Else; |
2374 | } |
2375 | |
2376 | /// Retrieve the variable declared in this "if" statement, if any. |
2377 | /// |
2378 | /// In the following example, "x" is the condition variable. |
2379 | /// \code |
2380 | /// if (int x = foo()) { |
2381 | /// printf("x is %d", x); |
2382 | /// } |
2383 | /// \endcode |
2384 | VarDecl *getConditionVariable(); |
2385 | const VarDecl *getConditionVariable() const { |
2386 | return const_cast<IfStmt *>(this)->getConditionVariable(); |
2387 | } |
2388 | |
2389 | /// Set the condition variable for this if statement. |
2390 | /// The if statement must have storage for the condition variable. |
2391 | void setConditionVariable(const ASTContext &Ctx, VarDecl *V); |
2392 | |
2393 | /// If this IfStmt has a condition variable, return the faux DeclStmt |
2394 | /// associated with the creation of that condition variable. |
2395 | DeclStmt *getConditionVariableDeclStmt() { |
2396 | return hasVarStorage() ? static_cast<DeclStmt *>( |
2397 | getTrailingObjects<Stmt *>()[varOffset()]) |
2398 | : nullptr; |
2399 | } |
2400 | |
2401 | const DeclStmt *getConditionVariableDeclStmt() const { |
2402 | return hasVarStorage() ? static_cast<DeclStmt *>( |
2403 | getTrailingObjects<Stmt *>()[varOffset()]) |
2404 | : nullptr; |
2405 | } |
2406 | |
2407 | void setConditionVariableDeclStmt(DeclStmt *CondVar) { |
2408 | assert(hasVarStorage()); |
2409 | getTrailingObjects<Stmt *>()[varOffset()] = CondVar; |
2410 | } |
2411 | |
2412 | Stmt *getInit() { |
2413 | return hasInitStorage() ? getTrailingObjects<Stmt *>()[initOffset()] |
2414 | : nullptr; |
2415 | } |
2416 | |
2417 | const Stmt *getInit() const { |
2418 | return hasInitStorage() ? getTrailingObjects<Stmt *>()[initOffset()] |
2419 | : nullptr; |
2420 | } |
2421 | |
2422 | void setInit(Stmt *Init) { |
2423 | assert(hasInitStorage() && |
2424 | "This if statement has no storage for an init statement!"); |
2425 | getTrailingObjects<Stmt *>()[initOffset()] = Init; |
2426 | } |
2427 | |
2428 | SourceLocation getIfLoc() const { return IfStmtBits.IfLoc; } |
2429 | void setIfLoc(SourceLocation IfLoc) { IfStmtBits.IfLoc = IfLoc; } |
2430 | |
2431 | SourceLocation getElseLoc() const { |
2432 | return hasElseStorage() ? *getTrailingObjects<SourceLocation>() |
2433 | : SourceLocation(); |
2434 | } |
2435 | |
2436 | void setElseLoc(SourceLocation ElseLoc) { |
2437 | assert(hasElseStorage() && |
2438 | "This if statement has no storage for an else statement!"); |
2439 | *getTrailingObjects<SourceLocation>() = ElseLoc; |
2440 | } |
2441 | |
2442 | bool isConsteval() const { |
2443 | return getStatementKind() == IfStatementKind::ConstevalNonNegated || |
2444 | getStatementKind() == IfStatementKind::ConstevalNegated; |
2445 | } |
2446 | |
2447 | bool isNonNegatedConsteval() const { |
2448 | return getStatementKind() == IfStatementKind::ConstevalNonNegated; |
2449 | } |
2450 | |
2451 | bool isNegatedConsteval() const { |
2452 | return getStatementKind() == IfStatementKind::ConstevalNegated; |
2453 | } |
2454 | |
2455 | bool isConstexpr() const { |
2456 | return getStatementKind() == IfStatementKind::Constexpr; |
2457 | } |
2458 | |
2459 | void setStatementKind(IfStatementKind Kind) { |
2460 | IfStmtBits.Kind = static_cast<unsigned>(Kind); |
2461 | } |
2462 | |
2463 | IfStatementKind getStatementKind() const { |
2464 | return static_cast<IfStatementKind>(IfStmtBits.Kind); |
2465 | } |
2466 | |
2467 | /// If this is an 'if constexpr', determine which substatement will be taken. |
2468 | /// Otherwise, or if the condition is value-dependent, returns std::nullopt. |
2469 | std::optional<const Stmt *> getNondiscardedCase(const ASTContext &Ctx) const; |
2470 | std::optional<Stmt *> getNondiscardedCase(const ASTContext &Ctx); |
2471 | |
2472 | bool isObjCAvailabilityCheck() const; |
2473 | |
2474 | SourceLocation getBeginLoc() const { return getIfLoc(); } |
2475 | SourceLocation getEndLoc() const LLVM_READONLY { |
2476 | if (getElse()) |
2477 | return getElse()->getEndLoc(); |
2478 | return getThen()->getEndLoc(); |
2479 | } |
2480 | SourceLocation getLParenLoc() const { return LParenLoc; } |
2481 | void setLParenLoc(SourceLocation Loc) { LParenLoc = Loc; } |
2482 | SourceLocation getRParenLoc() const { return RParenLoc; } |
2483 | void setRParenLoc(SourceLocation Loc) { RParenLoc = Loc; } |
2484 | |
2485 | // Iterators over subexpressions. The iterators will include iterating |
2486 | // over the initialization expression referenced by the condition variable. |
2487 | child_range children() { |
2488 | // We always store a condition, but there is none for consteval if |
2489 | // statements, so skip it. |
2490 | return child_range(getTrailingObjects<Stmt *>() + |
2491 | (isConsteval() ? thenOffset() : 0), |
2492 | getTrailingObjects<Stmt *>() + |
2493 | numTrailingObjects(OverloadToken<Stmt *>())); |
2494 | } |
2495 | |
2496 | const_child_range children() const { |
2497 | // We always store a condition, but there is none for consteval if |
2498 | // statements, so skip it. |
2499 | return const_child_range(getTrailingObjects<Stmt *>() + |
2500 | (isConsteval() ? thenOffset() : 0), |
2501 | getTrailingObjects<Stmt *>() + |
2502 | numTrailingObjects(OverloadToken<Stmt *>())); |
2503 | } |
2504 | |
2505 | static bool classof(const Stmt *T) { |
2506 | return T->getStmtClass() == IfStmtClass; |
2507 | } |
2508 | }; |
2509 | |
2510 | /// SwitchStmt - This represents a 'switch' stmt. |
2511 | class SwitchStmt final : public Stmt, |
2512 | private llvm::TrailingObjects<SwitchStmt, Stmt *> { |
2513 | friend TrailingObjects; |
2514 | |
2515 | /// Points to a linked list of case and default statements. |
2516 | SwitchCase *FirstCase = nullptr; |
2517 | |
2518 | // SwitchStmt is followed by several trailing objects, |
2519 | // some of which optional. Note that it would be more convenient to |
2520 | // put the optional trailing objects at the end but this would change |
2521 | // the order in children(). |
2522 | // The trailing objects are in order: |
2523 | // |
2524 | // * A "Stmt *" for the init statement. |
2525 | // Present if and only if hasInitStorage(). |
2526 | // |
2527 | // * A "Stmt *" for the condition variable. |
2528 | // Present if and only if hasVarStorage(). This is in fact a "DeclStmt *". |
2529 | // |
2530 | // * A "Stmt *" for the condition. |
2531 | // Always present. This is in fact an "Expr *". |
2532 | // |
2533 | // * A "Stmt *" for the body. |
2534 | // Always present. |
2535 | enum { InitOffset = 0, BodyOffsetFromCond = 1 }; |
2536 | enum { NumMandatoryStmtPtr = 2 }; |
2537 | SourceLocation LParenLoc; |
2538 | SourceLocation RParenLoc; |
2539 | |
2540 | unsigned numTrailingStatements() const { |
2541 | return NumMandatoryStmtPtr + hasInitStorage() + hasVarStorage(); |
2542 | } |
2543 | |
2544 | unsigned initOffset() const { return InitOffset; } |
2545 | unsigned varOffset() const { return InitOffset + hasInitStorage(); } |
2546 | unsigned condOffset() const { |
2547 | return InitOffset + hasInitStorage() + hasVarStorage(); |
2548 | } |
2549 | unsigned bodyOffset() const { return condOffset() + BodyOffsetFromCond; } |
2550 | |
2551 | /// Build a switch statement. |
2552 | SwitchStmt(const ASTContext &Ctx, Stmt *Init, VarDecl *Var, Expr *Cond, |
2553 | SourceLocation LParenLoc, SourceLocation RParenLoc); |
2554 | |
2555 | /// Build a empty switch statement. |
2556 | explicit SwitchStmt(EmptyShell Empty, bool HasInit, bool HasVar); |
2557 | |
2558 | public: |
2559 | /// Create a switch statement. |
2560 | static SwitchStmt *Create(const ASTContext &Ctx, Stmt *Init, VarDecl *Var, |
2561 | Expr *Cond, SourceLocation LParenLoc, |
2562 | SourceLocation RParenLoc); |
2563 | |
2564 | /// Create an empty switch statement optionally with storage for |
2565 | /// an init expression and a condition variable. |
2566 | static SwitchStmt *CreateEmpty(const ASTContext &Ctx, bool HasInit, |
2567 | bool HasVar); |
2568 | |
2569 | /// True if this SwitchStmt has storage for an init statement. |
2570 | bool hasInitStorage() const { return SwitchStmtBits.HasInit; } |
2571 | |
2572 | /// True if this SwitchStmt has storage for a condition variable. |
2573 | bool hasVarStorage() const { return SwitchStmtBits.HasVar; } |
2574 | |
2575 | Expr *getCond() { |
2576 | return reinterpret_cast<Expr *>(getTrailingObjects()[condOffset()]); |
2577 | } |
2578 | |
2579 | const Expr *getCond() const { |
2580 | return reinterpret_cast<Expr *>(getTrailingObjects()[condOffset()]); |
2581 | } |
2582 | |
2583 | void setCond(Expr *Cond) { |
2584 | getTrailingObjects()[condOffset()] = reinterpret_cast<Stmt *>(Cond); |
2585 | } |
2586 | |
2587 | Stmt *getBody() { return getTrailingObjects()[bodyOffset()]; } |
2588 | const Stmt *getBody() const { return getTrailingObjects()[bodyOffset()]; } |
2589 | |
2590 | void setBody(Stmt *Body) { getTrailingObjects()[bodyOffset()] = Body; } |
2591 | |
2592 | Stmt *getInit() { |
2593 | return hasInitStorage() ? getTrailingObjects()[initOffset()] : nullptr; |
2594 | } |
2595 | |
2596 | const Stmt *getInit() const { |
2597 | return hasInitStorage() ? getTrailingObjects()[initOffset()] : nullptr; |
2598 | } |
2599 | |
2600 | void setInit(Stmt *Init) { |
2601 | assert(hasInitStorage() && |
2602 | "This switch statement has no storage for an init statement!"); |
2603 | getTrailingObjects()[initOffset()] = Init; |
2604 | } |
2605 | |
2606 | /// Retrieve the variable declared in this "switch" statement, if any. |
2607 | /// |
2608 | /// In the following example, "x" is the condition variable. |
2609 | /// \code |
2610 | /// switch (int x = foo()) { |
2611 | /// case 0: break; |
2612 | /// // ... |
2613 | /// } |
2614 | /// \endcode |
2615 | VarDecl *getConditionVariable(); |
2616 | const VarDecl *getConditionVariable() const { |
2617 | return const_cast<SwitchStmt *>(this)->getConditionVariable(); |
2618 | } |
2619 | |
2620 | /// Set the condition variable in this switch statement. |
2621 | /// The switch statement must have storage for it. |
2622 | void setConditionVariable(const ASTContext &Ctx, VarDecl *VD); |
2623 | |
2624 | /// If this SwitchStmt has a condition variable, return the faux DeclStmt |
2625 | /// associated with the creation of that condition variable. |
2626 | DeclStmt *getConditionVariableDeclStmt() { |
2627 | return hasVarStorage() |
2628 | ? static_cast<DeclStmt *>(getTrailingObjects()[varOffset()]) |
2629 | : nullptr; |
2630 | } |
2631 | |
2632 | const DeclStmt *getConditionVariableDeclStmt() const { |
2633 | return hasVarStorage() |
2634 | ? static_cast<DeclStmt *>(getTrailingObjects()[varOffset()]) |
2635 | : nullptr; |
2636 | } |
2637 | |
2638 | void setConditionVariableDeclStmt(DeclStmt *CondVar) { |
2639 | assert(hasVarStorage()); |
2640 | getTrailingObjects()[varOffset()] = CondVar; |
2641 | } |
2642 | |
2643 | SwitchCase *getSwitchCaseList() { return FirstCase; } |
2644 | const SwitchCase *getSwitchCaseList() const { return FirstCase; } |
2645 | void setSwitchCaseList(SwitchCase *SC) { FirstCase = SC; } |
2646 | |
2647 | SourceLocation getSwitchLoc() const { return SwitchStmtBits.SwitchLoc; } |
2648 | void setSwitchLoc(SourceLocation L) { SwitchStmtBits.SwitchLoc = L; } |
2649 | SourceLocation getLParenLoc() const { return LParenLoc; } |
2650 | void setLParenLoc(SourceLocation Loc) { LParenLoc = Loc; } |
2651 | SourceLocation getRParenLoc() const { return RParenLoc; } |
2652 | void setRParenLoc(SourceLocation Loc) { RParenLoc = Loc; } |
2653 | |
2654 | void setBody(Stmt *S, SourceLocation SL) { |
2655 | setBody(S); |
2656 | setSwitchLoc(SL); |
2657 | } |
2658 | |
2659 | void addSwitchCase(SwitchCase *SC) { |
2660 | assert(!SC->getNextSwitchCase() && |
2661 | "case/default already added to a switch"); |
2662 | SC->setNextSwitchCase(FirstCase); |
2663 | FirstCase = SC; |
2664 | } |
2665 | |
2666 | /// Set a flag in the SwitchStmt indicating that if the 'switch (X)' is a |
2667 | /// switch over an enum value then all cases have been explicitly covered. |
2668 | void setAllEnumCasesCovered() { SwitchStmtBits.AllEnumCasesCovered = true; } |
2669 | |
2670 | /// Returns true if the SwitchStmt is a switch of an enum value and all cases |
2671 | /// have been explicitly covered. |
2672 | bool isAllEnumCasesCovered() const { |
2673 | return SwitchStmtBits.AllEnumCasesCovered; |
2674 | } |
2675 | |
2676 | SourceLocation getBeginLoc() const { return getSwitchLoc(); } |
2677 | SourceLocation getEndLoc() const LLVM_READONLY { |
2678 | return getBody() ? getBody()->getEndLoc() |
2679 | : reinterpret_cast<const Stmt *>(getCond())->getEndLoc(); |
2680 | } |
2681 | |
2682 | // Iterators |
2683 | child_range children() { |
2684 | return child_range(getTrailingObjects(), |
2685 | getTrailingObjects() + numTrailingStatements()); |
2686 | } |
2687 | |
2688 | const_child_range children() const { |
2689 | return const_child_range(getTrailingObjects(), |
2690 | getTrailingObjects() + numTrailingStatements()); |
2691 | } |
2692 | |
2693 | static bool classof(const Stmt *T) { |
2694 | return T->getStmtClass() == SwitchStmtClass; |
2695 | } |
2696 | }; |
2697 | |
2698 | /// WhileStmt - This represents a 'while' stmt. |
2699 | class WhileStmt final : public Stmt, |
2700 | private llvm::TrailingObjects<WhileStmt, Stmt *> { |
2701 | friend TrailingObjects; |
2702 | |
2703 | // WhileStmt is followed by several trailing objects, |
2704 | // some of which optional. Note that it would be more |
2705 | // convenient to put the optional trailing object at the end |
2706 | // but this would affect children(). |
2707 | // The trailing objects are in order: |
2708 | // |
2709 | // * A "Stmt *" for the condition variable. |
2710 | // Present if and only if hasVarStorage(). This is in fact a "DeclStmt *". |
2711 | // |
2712 | // * A "Stmt *" for the condition. |
2713 | // Always present. This is in fact an "Expr *". |
2714 | // |
2715 | // * A "Stmt *" for the body. |
2716 | // Always present. |
2717 | // |
2718 | enum { VarOffset = 0, BodyOffsetFromCond = 1 }; |
2719 | enum { NumMandatoryStmtPtr = 2 }; |
2720 | |
2721 | SourceLocation LParenLoc, RParenLoc; |
2722 | |
2723 | unsigned varOffset() const { return VarOffset; } |
2724 | unsigned condOffset() const { return VarOffset + hasVarStorage(); } |
2725 | unsigned bodyOffset() const { return condOffset() + BodyOffsetFromCond; } |
2726 | |
2727 | unsigned numTrailingStatements() const { |
2728 | return NumMandatoryStmtPtr + hasVarStorage(); |
2729 | } |
2730 | |
2731 | /// Build a while statement. |
2732 | WhileStmt(const ASTContext &Ctx, VarDecl *Var, Expr *Cond, Stmt *Body, |
2733 | SourceLocation WL, SourceLocation LParenLoc, |
2734 | SourceLocation RParenLoc); |
2735 | |
2736 | /// Build an empty while statement. |
2737 | explicit WhileStmt(EmptyShell Empty, bool HasVar); |
2738 | |
2739 | public: |
2740 | /// Create a while statement. |
2741 | static WhileStmt *Create(const ASTContext &Ctx, VarDecl *Var, Expr *Cond, |
2742 | Stmt *Body, SourceLocation WL, |
2743 | SourceLocation LParenLoc, SourceLocation RParenLoc); |
2744 | |
2745 | /// Create an empty while statement optionally with storage for |
2746 | /// a condition variable. |
2747 | static WhileStmt *CreateEmpty(const ASTContext &Ctx, bool HasVar); |
2748 | |
2749 | /// True if this WhileStmt has storage for a condition variable. |
2750 | bool hasVarStorage() const { return WhileStmtBits.HasVar; } |
2751 | |
2752 | Expr *getCond() { |
2753 | return reinterpret_cast<Expr *>(getTrailingObjects()[condOffset()]); |
2754 | } |
2755 | |
2756 | const Expr *getCond() const { |
2757 | return reinterpret_cast<Expr *>(getTrailingObjects()[condOffset()]); |
2758 | } |
2759 | |
2760 | void setCond(Expr *Cond) { |
2761 | getTrailingObjects()[condOffset()] = reinterpret_cast<Stmt *>(Cond); |
2762 | } |
2763 | |
2764 | Stmt *getBody() { return getTrailingObjects()[bodyOffset()]; } |
2765 | const Stmt *getBody() const { return getTrailingObjects()[bodyOffset()]; } |
2766 | |
2767 | void setBody(Stmt *Body) { getTrailingObjects()[bodyOffset()] = Body; } |
2768 | |
2769 | /// Retrieve the variable declared in this "while" statement, if any. |
2770 | /// |
2771 | /// In the following example, "x" is the condition variable. |
2772 | /// \code |
2773 | /// while (int x = random()) { |
2774 | /// // ... |
2775 | /// } |
2776 | /// \endcode |
2777 | VarDecl *getConditionVariable(); |
2778 | const VarDecl *getConditionVariable() const { |
2779 | return const_cast<WhileStmt *>(this)->getConditionVariable(); |
2780 | } |
2781 | |
2782 | /// Set the condition variable of this while statement. |
2783 | /// The while statement must have storage for it. |
2784 | void setConditionVariable(const ASTContext &Ctx, VarDecl *V); |
2785 | |
2786 | /// If this WhileStmt has a condition variable, return the faux DeclStmt |
2787 | /// associated with the creation of that condition variable. |
2788 | DeclStmt *getConditionVariableDeclStmt() { |
2789 | return hasVarStorage() |
2790 | ? static_cast<DeclStmt *>(getTrailingObjects()[varOffset()]) |
2791 | : nullptr; |
2792 | } |
2793 | |
2794 | const DeclStmt *getConditionVariableDeclStmt() const { |
2795 | return hasVarStorage() |
2796 | ? static_cast<DeclStmt *>(getTrailingObjects()[varOffset()]) |
2797 | : nullptr; |
2798 | } |
2799 | |
2800 | void setConditionVariableDeclStmt(DeclStmt *CondVar) { |
2801 | assert(hasVarStorage()); |
2802 | getTrailingObjects()[varOffset()] = CondVar; |
2803 | } |
2804 | |
2805 | SourceLocation getWhileLoc() const { return WhileStmtBits.WhileLoc; } |
2806 | void setWhileLoc(SourceLocation L) { WhileStmtBits.WhileLoc = L; } |
2807 | |
2808 | SourceLocation getLParenLoc() const { return LParenLoc; } |
2809 | void setLParenLoc(SourceLocation L) { LParenLoc = L; } |
2810 | SourceLocation getRParenLoc() const { return RParenLoc; } |
2811 | void setRParenLoc(SourceLocation L) { RParenLoc = L; } |
2812 | |
2813 | SourceLocation getBeginLoc() const { return getWhileLoc(); } |
2814 | SourceLocation getEndLoc() const LLVM_READONLY { |
2815 | return getBody()->getEndLoc(); |
2816 | } |
2817 | |
2818 | static bool classof(const Stmt *T) { |
2819 | return T->getStmtClass() == WhileStmtClass; |
2820 | } |
2821 | |
2822 | // Iterators |
2823 | child_range children() { |
2824 | return child_range(getTrailingObjects(), |
2825 | getTrailingObjects() + numTrailingStatements()); |
2826 | } |
2827 | |
2828 | const_child_range children() const { |
2829 | return const_child_range(getTrailingObjects(), |
2830 | getTrailingObjects() + numTrailingStatements()); |
2831 | } |
2832 | }; |
2833 | |
2834 | /// DoStmt - This represents a 'do/while' stmt. |
2835 | class DoStmt : public Stmt { |
2836 | enum { BODY, COND, END_EXPR }; |
2837 | Stmt *SubExprs[END_EXPR]; |
2838 | SourceLocation WhileLoc; |
2839 | SourceLocation RParenLoc; // Location of final ')' in do stmt condition. |
2840 | |
2841 | public: |
2842 | DoStmt(Stmt *Body, Expr *Cond, SourceLocation DL, SourceLocation WL, |
2843 | SourceLocation RP) |
2844 | : Stmt(DoStmtClass), WhileLoc(WL), RParenLoc(RP) { |
2845 | setCond(Cond); |
2846 | setBody(Body); |
2847 | setDoLoc(DL); |
2848 | } |
2849 | |
2850 | /// Build an empty do-while statement. |
2851 | explicit DoStmt(EmptyShell Empty) : Stmt(DoStmtClass, Empty) {} |
2852 | |
2853 | Expr *getCond() { return reinterpret_cast<Expr *>(SubExprs[COND]); } |
2854 | const Expr *getCond() const { |
2855 | return reinterpret_cast<Expr *>(SubExprs[COND]); |
2856 | } |
2857 | |
2858 | void setCond(Expr *Cond) { SubExprs[COND] = reinterpret_cast<Stmt *>(Cond); } |
2859 | |
2860 | Stmt *getBody() { return SubExprs[BODY]; } |
2861 | const Stmt *getBody() const { return SubExprs[BODY]; } |
2862 | void setBody(Stmt *Body) { SubExprs[BODY] = Body; } |
2863 | |
2864 | SourceLocation getDoLoc() const { return DoStmtBits.DoLoc; } |
2865 | void setDoLoc(SourceLocation L) { DoStmtBits.DoLoc = L; } |
2866 | SourceLocation getWhileLoc() const { return WhileLoc; } |
2867 | void setWhileLoc(SourceLocation L) { WhileLoc = L; } |
2868 | SourceLocation getRParenLoc() const { return RParenLoc; } |
2869 | void setRParenLoc(SourceLocation L) { RParenLoc = L; } |
2870 | |
2871 | SourceLocation getBeginLoc() const { return getDoLoc(); } |
2872 | SourceLocation getEndLoc() const { return getRParenLoc(); } |
2873 | |
2874 | static bool classof(const Stmt *T) { |
2875 | return T->getStmtClass() == DoStmtClass; |
2876 | } |
2877 | |
2878 | // Iterators |
2879 | child_range children() { |
2880 | return child_range(&SubExprs[0], &SubExprs[0] + END_EXPR); |
2881 | } |
2882 | |
2883 | const_child_range children() const { |
2884 | return const_child_range(&SubExprs[0], &SubExprs[0] + END_EXPR); |
2885 | } |
2886 | }; |
2887 | |
2888 | /// ForStmt - This represents a 'for (init;cond;inc)' stmt. Note that any of |
2889 | /// the init/cond/inc parts of the ForStmt will be null if they were not |
2890 | /// specified in the source. |
2891 | class ForStmt : public Stmt { |
2892 | friend class ASTStmtReader; |
2893 | |
2894 | enum { INIT, CONDVAR, COND, INC, BODY, END_EXPR }; |
2895 | Stmt* SubExprs[END_EXPR]; // SubExprs[INIT] is an expression or declstmt. |
2896 | SourceLocation LParenLoc, RParenLoc; |
2897 | |
2898 | public: |
2899 | ForStmt(const ASTContext &C, Stmt *Init, Expr *Cond, VarDecl *condVar, |
2900 | Expr *Inc, Stmt *Body, SourceLocation FL, SourceLocation LP, |
2901 | SourceLocation RP); |
2902 | |
2903 | /// Build an empty for statement. |
2904 | explicit ForStmt(EmptyShell Empty) : Stmt(ForStmtClass, Empty) {} |
2905 | |
2906 | Stmt *getInit() { return SubExprs[INIT]; } |
2907 | |
2908 | /// Retrieve the variable declared in this "for" statement, if any. |
2909 | /// |
2910 | /// In the following example, "y" is the condition variable. |
2911 | /// \code |
2912 | /// for (int x = random(); int y = mangle(x); ++x) { |
2913 | /// // ... |
2914 | /// } |
2915 | /// \endcode |
2916 | VarDecl *getConditionVariable() const; |
2917 | void setConditionVariable(const ASTContext &C, VarDecl *V); |
2918 | |
2919 | /// If this ForStmt has a condition variable, return the faux DeclStmt |
2920 | /// associated with the creation of that condition variable. |
2921 | DeclStmt *getConditionVariableDeclStmt() { |
2922 | return reinterpret_cast<DeclStmt*>(SubExprs[CONDVAR]); |
2923 | } |
2924 | |
2925 | const DeclStmt *getConditionVariableDeclStmt() const { |
2926 | return reinterpret_cast<DeclStmt*>(SubExprs[CONDVAR]); |
2927 | } |
2928 | |
2929 | void setConditionVariableDeclStmt(DeclStmt *CondVar) { |
2930 | SubExprs[CONDVAR] = CondVar; |
2931 | } |
2932 | |
2933 | Expr *getCond() { return reinterpret_cast<Expr*>(SubExprs[COND]); } |
2934 | Expr *getInc() { return reinterpret_cast<Expr*>(SubExprs[INC]); } |
2935 | Stmt *getBody() { return SubExprs[BODY]; } |
2936 | |
2937 | const Stmt *getInit() const { return SubExprs[INIT]; } |
2938 | const Expr *getCond() const { return reinterpret_cast<Expr*>(SubExprs[COND]);} |
2939 | const Expr *getInc() const { return reinterpret_cast<Expr*>(SubExprs[INC]); } |
2940 | const Stmt *getBody() const { return SubExprs[BODY]; } |
2941 | |
2942 | void setInit(Stmt *S) { SubExprs[INIT] = S; } |
2943 | void setCond(Expr *E) { SubExprs[COND] = reinterpret_cast<Stmt*>(E); } |
2944 | void setInc(Expr *E) { SubExprs[INC] = reinterpret_cast<Stmt*>(E); } |
2945 | void setBody(Stmt *S) { SubExprs[BODY] = S; } |
2946 | |
2947 | SourceLocation getForLoc() const { return ForStmtBits.ForLoc; } |
2948 | void setForLoc(SourceLocation L) { ForStmtBits.ForLoc = L; } |
2949 | SourceLocation getLParenLoc() const { return LParenLoc; } |
2950 | void setLParenLoc(SourceLocation L) { LParenLoc = L; } |
2951 | SourceLocation getRParenLoc() const { return RParenLoc; } |
2952 | void setRParenLoc(SourceLocation L) { RParenLoc = L; } |
2953 | |
2954 | SourceLocation getBeginLoc() const { return getForLoc(); } |
2955 | SourceLocation getEndLoc() const { return getBody()->getEndLoc(); } |
2956 | |
2957 | static bool classof(const Stmt *T) { |
2958 | return T->getStmtClass() == ForStmtClass; |
2959 | } |
2960 | |
2961 | // Iterators |
2962 | child_range children() { |
2963 | return child_range(&SubExprs[0], &SubExprs[0]+END_EXPR); |
2964 | } |
2965 | |
2966 | const_child_range children() const { |
2967 | return const_child_range(&SubExprs[0], &SubExprs[0] + END_EXPR); |
2968 | } |
2969 | }; |
2970 | |
2971 | /// GotoStmt - This represents a direct goto. |
2972 | class GotoStmt : public Stmt { |
2973 | LabelDecl *Label; |
2974 | SourceLocation LabelLoc; |
2975 | |
2976 | public: |
2977 | GotoStmt(LabelDecl *label, SourceLocation GL, SourceLocation LL) |
2978 | : Stmt(GotoStmtClass), Label(label), LabelLoc(LL) { |
2979 | setGotoLoc(GL); |
2980 | } |
2981 | |
2982 | /// Build an empty goto statement. |
2983 | explicit GotoStmt(EmptyShell Empty) : Stmt(GotoStmtClass, Empty) {} |
2984 | |
2985 | LabelDecl *getLabel() const { return Label; } |
2986 | void setLabel(LabelDecl *D) { Label = D; } |
2987 | |
2988 | SourceLocation getGotoLoc() const { return GotoStmtBits.GotoLoc; } |
2989 | void setGotoLoc(SourceLocation L) { GotoStmtBits.GotoLoc = L; } |
2990 | SourceLocation getLabelLoc() const { return LabelLoc; } |
2991 | void setLabelLoc(SourceLocation L) { LabelLoc = L; } |
2992 | |
2993 | SourceLocation getBeginLoc() const { return getGotoLoc(); } |
2994 | SourceLocation getEndLoc() const { return getLabelLoc(); } |
2995 | |
2996 | static bool classof(const Stmt *T) { |
2997 | return T->getStmtClass() == GotoStmtClass; |
2998 | } |
2999 | |
3000 | // Iterators |
3001 | child_range children() { |
3002 | return child_range(child_iterator(), child_iterator()); |
3003 | } |
3004 | |
3005 | const_child_range children() const { |
3006 | return const_child_range(const_child_iterator(), const_child_iterator()); |
3007 | } |
3008 | }; |
3009 | |
3010 | /// IndirectGotoStmt - This represents an indirect goto. |
3011 | class IndirectGotoStmt : public Stmt { |
3012 | SourceLocation StarLoc; |
3013 | Stmt *Target; |
3014 | |
3015 | public: |
3016 | IndirectGotoStmt(SourceLocation gotoLoc, SourceLocation starLoc, Expr *target) |
3017 | : Stmt(IndirectGotoStmtClass), StarLoc(starLoc) { |
3018 | setTarget(target); |
3019 | setGotoLoc(gotoLoc); |
3020 | } |
3021 | |
3022 | /// Build an empty indirect goto statement. |
3023 | explicit IndirectGotoStmt(EmptyShell Empty) |
3024 | : Stmt(IndirectGotoStmtClass, Empty) {} |
3025 | |
3026 | void setGotoLoc(SourceLocation L) { GotoStmtBits.GotoLoc = L; } |
3027 | SourceLocation getGotoLoc() const { return GotoStmtBits.GotoLoc; } |
3028 | void setStarLoc(SourceLocation L) { StarLoc = L; } |
3029 | SourceLocation getStarLoc() const { return StarLoc; } |
3030 | |
3031 | Expr *getTarget() { return reinterpret_cast<Expr *>(Target); } |
3032 | const Expr *getTarget() const { |
3033 | return reinterpret_cast<const Expr *>(Target); |
3034 | } |
3035 | void setTarget(Expr *E) { Target = reinterpret_cast<Stmt *>(E); } |
3036 | |
3037 | /// getConstantTarget - Returns the fixed target of this indirect |
3038 | /// goto, if one exists. |
3039 | LabelDecl *getConstantTarget(); |
3040 | const LabelDecl *getConstantTarget() const { |
3041 | return const_cast<IndirectGotoStmt *>(this)->getConstantTarget(); |
3042 | } |
3043 | |
3044 | SourceLocation getBeginLoc() const { return getGotoLoc(); } |
3045 | SourceLocation getEndLoc() const LLVM_READONLY { return Target->getEndLoc(); } |
3046 | |
3047 | static bool classof(const Stmt *T) { |
3048 | return T->getStmtClass() == IndirectGotoStmtClass; |
3049 | } |
3050 | |
3051 | // Iterators |
3052 | child_range children() { return child_range(&Target, &Target + 1); } |
3053 | |
3054 | const_child_range children() const { |
3055 | return const_child_range(&Target, &Target + 1); |
3056 | } |
3057 | }; |
3058 | |
3059 | /// ContinueStmt - This represents a continue. |
3060 | class ContinueStmt : public Stmt { |
3061 | public: |
3062 | ContinueStmt(SourceLocation CL) : Stmt(ContinueStmtClass) { |
3063 | setContinueLoc(CL); |
3064 | } |
3065 | |
3066 | /// Build an empty continue statement. |
3067 | explicit ContinueStmt(EmptyShell Empty) : Stmt(ContinueStmtClass, Empty) {} |
3068 | |
3069 | SourceLocation getContinueLoc() const { return ContinueStmtBits.ContinueLoc; } |
3070 | void setContinueLoc(SourceLocation L) { ContinueStmtBits.ContinueLoc = L; } |
3071 | |
3072 | SourceLocation getBeginLoc() const { return getContinueLoc(); } |
3073 | SourceLocation getEndLoc() const { return getContinueLoc(); } |
3074 | |
3075 | static bool classof(const Stmt *T) { |
3076 | return T->getStmtClass() == ContinueStmtClass; |
3077 | } |
3078 | |
3079 | // Iterators |
3080 | child_range children() { |
3081 | return child_range(child_iterator(), child_iterator()); |
3082 | } |
3083 | |
3084 | const_child_range children() const { |
3085 | return const_child_range(const_child_iterator(), const_child_iterator()); |
3086 | } |
3087 | }; |
3088 | |
3089 | /// BreakStmt - This represents a break. |
3090 | class BreakStmt : public Stmt { |
3091 | public: |
3092 | BreakStmt(SourceLocation BL) : Stmt(BreakStmtClass) { |
3093 | setBreakLoc(BL); |
3094 | } |
3095 | |
3096 | /// Build an empty break statement. |
3097 | explicit BreakStmt(EmptyShell Empty) : Stmt(BreakStmtClass, Empty) {} |
3098 | |
3099 | SourceLocation getBreakLoc() const { return BreakStmtBits.BreakLoc; } |
3100 | void setBreakLoc(SourceLocation L) { BreakStmtBits.BreakLoc = L; } |
3101 | |
3102 | SourceLocation getBeginLoc() const { return getBreakLoc(); } |
3103 | SourceLocation getEndLoc() const { return getBreakLoc(); } |
3104 | |
3105 | static bool classof(const Stmt *T) { |
3106 | return T->getStmtClass() == BreakStmtClass; |
3107 | } |
3108 | |
3109 | // Iterators |
3110 | child_range children() { |
3111 | return child_range(child_iterator(), child_iterator()); |
3112 | } |
3113 | |
3114 | const_child_range children() const { |
3115 | return const_child_range(const_child_iterator(), const_child_iterator()); |
3116 | } |
3117 | }; |
3118 | |
3119 | /// ReturnStmt - This represents a return, optionally of an expression: |
3120 | /// return; |
3121 | /// return 4; |
3122 | /// |
3123 | /// Note that GCC allows return with no argument in a function declared to |
3124 | /// return a value, and it allows returning a value in functions declared to |
3125 | /// return void. We explicitly model this in the AST, which means you can't |
3126 | /// depend on the return type of the function and the presence of an argument. |
3127 | class ReturnStmt final |
3128 | : public Stmt, |
3129 | private llvm::TrailingObjects<ReturnStmt, const VarDecl *> { |
3130 | friend TrailingObjects; |
3131 | |
3132 | /// The return expression. |
3133 | Stmt *RetExpr; |
3134 | |
3135 | // ReturnStmt is followed optionally by a trailing "const VarDecl *" |
3136 | // for the NRVO candidate. Present if and only if hasNRVOCandidate(). |
3137 | |
3138 | /// True if this ReturnStmt has storage for an NRVO candidate. |
3139 | bool hasNRVOCandidate() const { return ReturnStmtBits.HasNRVOCandidate; } |
3140 | |
3141 | /// Build a return statement. |
3142 | ReturnStmt(SourceLocation RL, Expr *E, const VarDecl *NRVOCandidate); |
3143 | |
3144 | /// Build an empty return statement. |
3145 | explicit ReturnStmt(EmptyShell Empty, bool HasNRVOCandidate); |
3146 | |
3147 | public: |
3148 | /// Create a return statement. |
3149 | static ReturnStmt *Create(const ASTContext &Ctx, SourceLocation RL, Expr *E, |
3150 | const VarDecl *NRVOCandidate); |
3151 | |
3152 | /// Create an empty return statement, optionally with |
3153 | /// storage for an NRVO candidate. |
3154 | static ReturnStmt *CreateEmpty(const ASTContext &Ctx, bool HasNRVOCandidate); |
3155 | |
3156 | Expr *getRetValue() { return reinterpret_cast<Expr *>(RetExpr); } |
3157 | const Expr *getRetValue() const { return reinterpret_cast<Expr *>(RetExpr); } |
3158 | void setRetValue(Expr *E) { RetExpr = reinterpret_cast<Stmt *>(E); } |
3159 | |
3160 | /// Retrieve the variable that might be used for the named return |
3161 | /// value optimization. |
3162 | /// |
3163 | /// The optimization itself can only be performed if the variable is |
3164 | /// also marked as an NRVO object. |
3165 | const VarDecl *getNRVOCandidate() const { |
3166 | return hasNRVOCandidate() ? *getTrailingObjects() : nullptr; |
3167 | } |
3168 | |
3169 | /// Set the variable that might be used for the named return value |
3170 | /// optimization. The return statement must have storage for it, |
3171 | /// which is the case if and only if hasNRVOCandidate() is true. |
3172 | void setNRVOCandidate(const VarDecl *Var) { |
3173 | assert(hasNRVOCandidate() && |
3174 | "This return statement has no storage for an NRVO candidate!"); |
3175 | *getTrailingObjects() = Var; |
3176 | } |
3177 | |
3178 | SourceLocation getReturnLoc() const { return ReturnStmtBits.RetLoc; } |
3179 | void setReturnLoc(SourceLocation L) { ReturnStmtBits.RetLoc = L; } |
3180 | |
3181 | SourceLocation getBeginLoc() const { return getReturnLoc(); } |
3182 | SourceLocation getEndLoc() const LLVM_READONLY { |
3183 | return RetExpr ? RetExpr->getEndLoc() : getReturnLoc(); |
3184 | } |
3185 | |
3186 | static bool classof(const Stmt *T) { |
3187 | return T->getStmtClass() == ReturnStmtClass; |
3188 | } |
3189 | |
3190 | // Iterators |
3191 | child_range children() { |
3192 | if (RetExpr) |
3193 | return child_range(&RetExpr, &RetExpr + 1); |
3194 | return child_range(child_iterator(), child_iterator()); |
3195 | } |
3196 | |
3197 | const_child_range children() const { |
3198 | if (RetExpr) |
3199 | return const_child_range(&RetExpr, &RetExpr + 1); |
3200 | return const_child_range(const_child_iterator(), const_child_iterator()); |
3201 | } |
3202 | }; |
3203 | |
3204 | /// AsmStmt is the base class for GCCAsmStmt and MSAsmStmt. |
3205 | class AsmStmt : public Stmt { |
3206 | protected: |
3207 | friend class ASTStmtReader; |
3208 | |
3209 | SourceLocation AsmLoc; |
3210 | |
3211 | /// True if the assembly statement does not have any input or output |
3212 | /// operands. |
3213 | bool IsSimple; |
3214 | |
3215 | /// If true, treat this inline assembly as having side effects. |
3216 | /// This assembly statement should not be optimized, deleted or moved. |
3217 | bool IsVolatile; |
3218 | |
3219 | unsigned NumOutputs; |
3220 | unsigned NumInputs; |
3221 | unsigned NumClobbers; |
3222 | |
3223 | Stmt **Exprs = nullptr; |
3224 | |
3225 | AsmStmt(StmtClass SC, SourceLocation asmloc, bool issimple, bool isvolatile, |
3226 | unsigned numoutputs, unsigned numinputs, unsigned numclobbers) |
3227 | : Stmt (SC), AsmLoc(asmloc), IsSimple(issimple), IsVolatile(isvolatile), |
3228 | NumOutputs(numoutputs), NumInputs(numinputs), |
3229 | NumClobbers(numclobbers) {} |
3230 | |
3231 | public: |
3232 | /// Build an empty inline-assembly statement. |
3233 | explicit AsmStmt(StmtClass SC, EmptyShell Empty) : Stmt(SC, Empty) {} |
3234 | |
3235 | SourceLocation getAsmLoc() const { return AsmLoc; } |
3236 | void setAsmLoc(SourceLocation L) { AsmLoc = L; } |
3237 | |
3238 | bool isSimple() const { return IsSimple; } |
3239 | void setSimple(bool V) { IsSimple = V; } |
3240 | |
3241 | bool isVolatile() const { return IsVolatile; } |
3242 | void setVolatile(bool V) { IsVolatile = V; } |
3243 | |
3244 | SourceLocation getBeginLoc() const LLVM_READONLY { return {}; } |
3245 | SourceLocation getEndLoc() const LLVM_READONLY { return {}; } |
3246 | |
3247 | //===--- Asm String Analysis ---===// |
3248 | |
3249 | /// Assemble final IR asm string. |
3250 | std::string generateAsmString(const ASTContext &C) const; |
3251 | |
3252 | //===--- Output operands ---===// |
3253 | |
3254 | unsigned getNumOutputs() const { return NumOutputs; } |
3255 | |
3256 | /// getOutputConstraint - Return the constraint string for the specified |
3257 | /// output operand. All output constraints are known to be non-empty (either |
3258 | /// '=' or '+'). |
3259 | std::string getOutputConstraint(unsigned i) const; |
3260 | |
3261 | /// isOutputPlusConstraint - Return true if the specified output constraint |
3262 | /// is a "+" constraint (which is both an input and an output) or false if it |
3263 | /// is an "=" constraint (just an output). |
3264 | bool isOutputPlusConstraint(unsigned i) const { |
3265 | return getOutputConstraint(i)[0] == '+'; |
3266 | } |
3267 | |
3268 | const Expr *getOutputExpr(unsigned i) const; |
3269 | |
3270 | /// getNumPlusOperands - Return the number of output operands that have a "+" |
3271 | /// constraint. |
3272 | unsigned getNumPlusOperands() const; |
3273 | |
3274 | //===--- Input operands ---===// |
3275 | |
3276 | unsigned getNumInputs() const { return NumInputs; } |
3277 | |
3278 | /// getInputConstraint - Return the specified input constraint. Unlike output |
3279 | /// constraints, these can be empty. |
3280 | std::string getInputConstraint(unsigned i) const; |
3281 | |
3282 | const Expr *getInputExpr(unsigned i) const; |
3283 | |
3284 | //===--- Other ---===// |
3285 | |
3286 | unsigned getNumClobbers() const { return NumClobbers; } |
3287 | std::string getClobber(unsigned i) const; |
3288 | |
3289 | static bool classof(const Stmt *T) { |
3290 | return T->getStmtClass() == GCCAsmStmtClass || |
3291 | T->getStmtClass() == MSAsmStmtClass; |
3292 | } |
3293 | |
3294 | // Input expr iterators. |
3295 | |
3296 | using inputs_iterator = ExprIterator; |
3297 | using const_inputs_iterator = ConstExprIterator; |
3298 | using inputs_range = llvm::iterator_range<inputs_iterator>; |
3299 | using inputs_const_range = llvm::iterator_range<const_inputs_iterator>; |
3300 | |
3301 | inputs_iterator begin_inputs() { |
3302 | return &Exprs[0] + NumOutputs; |
3303 | } |
3304 | |
3305 | inputs_iterator end_inputs() { |
3306 | return &Exprs[0] + NumOutputs + NumInputs; |
3307 | } |
3308 | |
3309 | inputs_range inputs() { return inputs_range(begin_inputs(), end_inputs()); } |
3310 | |
3311 | const_inputs_iterator begin_inputs() const { |
3312 | return &Exprs[0] + NumOutputs; |
3313 | } |
3314 | |
3315 | const_inputs_iterator end_inputs() const { |
3316 | return &Exprs[0] + NumOutputs + NumInputs; |
3317 | } |
3318 | |
3319 | inputs_const_range inputs() const { |
3320 | return inputs_const_range(begin_inputs(), end_inputs()); |
3321 | } |
3322 | |
3323 | // Output expr iterators. |
3324 | |
3325 | using outputs_iterator = ExprIterator; |
3326 | using const_outputs_iterator = ConstExprIterator; |
3327 | using outputs_range = llvm::iterator_range<outputs_iterator>; |
3328 | using outputs_const_range = llvm::iterator_range<const_outputs_iterator>; |
3329 | |
3330 | outputs_iterator begin_outputs() { |
3331 | return &Exprs[0]; |
3332 | } |
3333 | |
3334 | outputs_iterator end_outputs() { |
3335 | return &Exprs[0] + NumOutputs; |
3336 | } |
3337 | |
3338 | outputs_range outputs() { |
3339 | return outputs_range(begin_outputs(), end_outputs()); |
3340 | } |
3341 | |
3342 | const_outputs_iterator begin_outputs() const { |
3343 | return &Exprs[0]; |
3344 | } |
3345 | |
3346 | const_outputs_iterator end_outputs() const { |
3347 | return &Exprs[0] + NumOutputs; |
3348 | } |
3349 | |
3350 | outputs_const_range outputs() const { |
3351 | return outputs_const_range(begin_outputs(), end_outputs()); |
3352 | } |
3353 | |
3354 | child_range children() { |
3355 | return child_range(&Exprs[0], &Exprs[0] + NumOutputs + NumInputs); |
3356 | } |
3357 | |
3358 | const_child_range children() const { |
3359 | return const_child_range(&Exprs[0], &Exprs[0] + NumOutputs + NumInputs); |
3360 | } |
3361 | }; |
3362 | |
3363 | /// This represents a GCC inline-assembly statement extension. |
3364 | class GCCAsmStmt : public AsmStmt { |
3365 | friend class ASTStmtReader; |
3366 | |
3367 | SourceLocation RParenLoc; |
3368 | Expr *AsmStr; |
3369 | |
3370 | // FIXME: If we wanted to, we could allocate all of these in one big array. |
3371 | Expr **Constraints = nullptr; |
3372 | Expr **Clobbers = nullptr; |
3373 | IdentifierInfo **Names = nullptr; |
3374 | unsigned NumLabels = 0; |
3375 | |
3376 | public: |
3377 | GCCAsmStmt(const ASTContext &C, SourceLocation asmloc, bool issimple, |
3378 | bool isvolatile, unsigned numoutputs, unsigned numinputs, |
3379 | IdentifierInfo **names, Expr **constraints, Expr **exprs, |
3380 | Expr *asmstr, unsigned numclobbers, Expr **clobbers, |
3381 | unsigned numlabels, SourceLocation rparenloc); |
3382 | |
3383 | /// Build an empty inline-assembly statement. |
3384 | explicit GCCAsmStmt(EmptyShell Empty) : AsmStmt(GCCAsmStmtClass, Empty) {} |
3385 | |
3386 | SourceLocation getRParenLoc() const { return RParenLoc; } |
3387 | void setRParenLoc(SourceLocation L) { RParenLoc = L; } |
3388 | |
3389 | //===--- Asm String Analysis ---===// |
3390 | |
3391 | const Expr *getAsmStringExpr() const { return AsmStr; } |
3392 | Expr *getAsmStringExpr() { return AsmStr; } |
3393 | void setAsmStringExpr(Expr *E) { AsmStr = E; } |
3394 | |
3395 | std::string getAsmString() const; |
3396 | |
3397 | /// AsmStringPiece - this is part of a decomposed asm string specification |
3398 | /// (for use with the AnalyzeAsmString function below). An asm string is |
3399 | /// considered to be a concatenation of these parts. |
3400 | class AsmStringPiece { |
3401 | public: |
3402 | enum Kind { |
3403 | String, // String in .ll asm string form, "$" -> "$$" and "%%" -> "%". |
3404 | Operand // Operand reference, with optional modifier %c4. |
3405 | }; |
3406 | |
3407 | private: |
3408 | Kind MyKind; |
3409 | std::string Str; |
3410 | unsigned OperandNo; |
3411 | |
3412 | // Source range for operand references. |
3413 | CharSourceRange Range; |
3414 | |
3415 | public: |
3416 | AsmStringPiece(const std::string &S) : MyKind(String), Str(S) {} |
3417 | AsmStringPiece(unsigned OpNo, const std::string &S, SourceLocation Begin, |
3418 | SourceLocation End) |
3419 | : MyKind(Operand), Str(S), OperandNo(OpNo), |
3420 | Range(CharSourceRange::getCharRange(B: Begin, E: End)) {} |
3421 | |
3422 | bool isString() const { return MyKind == String; } |
3423 | bool isOperand() const { return MyKind == Operand; } |
3424 | |
3425 | const std::string &getString() const { return Str; } |
3426 | |
3427 | unsigned getOperandNo() const { |
3428 | assert(isOperand()); |
3429 | return OperandNo; |
3430 | } |
3431 | |
3432 | CharSourceRange getRange() const { |
3433 | assert(isOperand() && "Range is currently used only for Operands."); |
3434 | return Range; |
3435 | } |
3436 | |
3437 | /// getModifier - Get the modifier for this operand, if present. This |
3438 | /// returns '\0' if there was no modifier. |
3439 | char getModifier() const; |
3440 | }; |
3441 | |
3442 | /// AnalyzeAsmString - Analyze the asm string of the current asm, decomposing |
3443 | /// it into pieces. If the asm string is erroneous, emit errors and return |
3444 | /// true, otherwise return false. This handles canonicalization and |
3445 | /// translation of strings from GCC syntax to LLVM IR syntax, and handles |
3446 | //// flattening of named references like %[foo] to Operand AsmStringPiece's. |
3447 | unsigned AnalyzeAsmString(SmallVectorImpl<AsmStringPiece> &Pieces, |
3448 | const ASTContext &C, unsigned &DiagOffs) const; |
3449 | |
3450 | /// Assemble final IR asm string. |
3451 | std::string generateAsmString(const ASTContext &C) const; |
3452 | |
3453 | //===--- Output operands ---===// |
3454 | |
3455 | IdentifierInfo *getOutputIdentifier(unsigned i) const { return Names[i]; } |
3456 | |
3457 | StringRef getOutputName(unsigned i) const { |
3458 | if (IdentifierInfo *II = getOutputIdentifier(i)) |
3459 | return II->getName(); |
3460 | |
3461 | return {}; |
3462 | } |
3463 | |
3464 | std::string getOutputConstraint(unsigned i) const; |
3465 | |
3466 | const Expr *getOutputConstraintExpr(unsigned i) const { |
3467 | return Constraints[i]; |
3468 | } |
3469 | Expr *getOutputConstraintExpr(unsigned i) { return Constraints[i]; } |
3470 | |
3471 | Expr *getOutputExpr(unsigned i); |
3472 | |
3473 | const Expr *getOutputExpr(unsigned i) const { |
3474 | return const_cast<GCCAsmStmt*>(this)->getOutputExpr(i); |
3475 | } |
3476 | |
3477 | //===--- Input operands ---===// |
3478 | |
3479 | IdentifierInfo *getInputIdentifier(unsigned i) const { |
3480 | return Names[i + NumOutputs]; |
3481 | } |
3482 | |
3483 | StringRef getInputName(unsigned i) const { |
3484 | if (IdentifierInfo *II = getInputIdentifier(i)) |
3485 | return II->getName(); |
3486 | |
3487 | return {}; |
3488 | } |
3489 | |
3490 | std::string getInputConstraint(unsigned i) const; |
3491 | |
3492 | const Expr *getInputConstraintExpr(unsigned i) const { |
3493 | return Constraints[i + NumOutputs]; |
3494 | } |
3495 | Expr *getInputConstraintExpr(unsigned i) { |
3496 | return Constraints[i + NumOutputs]; |
3497 | } |
3498 | |
3499 | Expr *getInputExpr(unsigned i); |
3500 | void setInputExpr(unsigned i, Expr *E); |
3501 | |
3502 | const Expr *getInputExpr(unsigned i) const { |
3503 | return const_cast<GCCAsmStmt*>(this)->getInputExpr(i); |
3504 | } |
3505 | |
3506 | static std::string ExtractStringFromGCCAsmStmtComponent(const Expr *E); |
3507 | |
3508 | //===--- Labels ---===// |
3509 | |
3510 | bool isAsmGoto() const { |
3511 | return NumLabels > 0; |
3512 | } |
3513 | |
3514 | unsigned getNumLabels() const { |
3515 | return NumLabels; |
3516 | } |
3517 | |
3518 | IdentifierInfo *getLabelIdentifier(unsigned i) const { |
3519 | return Names[i + NumOutputs + NumInputs]; |
3520 | } |
3521 | |
3522 | AddrLabelExpr *getLabelExpr(unsigned i) const; |
3523 | StringRef getLabelName(unsigned i) const; |
3524 | using labels_iterator = CastIterator<AddrLabelExpr>; |
3525 | using const_labels_iterator = ConstCastIterator<AddrLabelExpr>; |
3526 | using labels_range = llvm::iterator_range<labels_iterator>; |
3527 | using labels_const_range = llvm::iterator_range<const_labels_iterator>; |
3528 | |
3529 | labels_iterator begin_labels() { |
3530 | return &Exprs[0] + NumOutputs + NumInputs; |
3531 | } |
3532 | |
3533 | labels_iterator end_labels() { |
3534 | return &Exprs[0] + NumOutputs + NumInputs + NumLabels; |
3535 | } |
3536 | |
3537 | labels_range labels() { |
3538 | return labels_range(begin_labels(), end_labels()); |
3539 | } |
3540 | |
3541 | const_labels_iterator begin_labels() const { |
3542 | return &Exprs[0] + NumOutputs + NumInputs; |
3543 | } |
3544 | |
3545 | const_labels_iterator end_labels() const { |
3546 | return &Exprs[0] + NumOutputs + NumInputs + NumLabels; |
3547 | } |
3548 | |
3549 | labels_const_range labels() const { |
3550 | return labels_const_range(begin_labels(), end_labels()); |
3551 | } |
3552 | |
3553 | private: |
3554 | void setOutputsAndInputsAndClobbers(const ASTContext &C, |
3555 | IdentifierInfo **Names, |
3556 | Expr **Constraints, Stmt **Exprs, |
3557 | unsigned NumOutputs, unsigned NumInputs, |
3558 | unsigned NumLabels, Expr **Clobbers, |
3559 | unsigned NumClobbers); |
3560 | |
3561 | public: |
3562 | //===--- Other ---===// |
3563 | |
3564 | /// getNamedOperand - Given a symbolic operand reference like %[foo], |
3565 | /// translate this into a numeric value needed to reference the same operand. |
3566 | /// This returns -1 if the operand name is invalid. |
3567 | int getNamedOperand(StringRef SymbolicName) const; |
3568 | |
3569 | std::string getClobber(unsigned i) const; |
3570 | |
3571 | Expr *getClobberExpr(unsigned i) { return Clobbers[i]; } |
3572 | const Expr *getClobberExpr(unsigned i) const { return Clobbers[i]; } |
3573 | |
3574 | SourceLocation getBeginLoc() const LLVM_READONLY { return AsmLoc; } |
3575 | SourceLocation getEndLoc() const LLVM_READONLY { return RParenLoc; } |
3576 | |
3577 | static bool classof(const Stmt *T) { |
3578 | return T->getStmtClass() == GCCAsmStmtClass; |
3579 | } |
3580 | }; |
3581 | |
3582 | /// This represents a Microsoft inline-assembly statement extension. |
3583 | class MSAsmStmt : public AsmStmt { |
3584 | friend class ASTStmtReader; |
3585 | |
3586 | SourceLocation LBraceLoc, EndLoc; |
3587 | StringRef AsmStr; |
3588 | |
3589 | unsigned NumAsmToks = 0; |
3590 | |
3591 | Token *AsmToks = nullptr; |
3592 | StringRef *Constraints = nullptr; |
3593 | StringRef *Clobbers = nullptr; |
3594 | |
3595 | public: |
3596 | MSAsmStmt(const ASTContext &C, SourceLocation asmloc, |
3597 | SourceLocation lbraceloc, bool issimple, bool isvolatile, |
3598 | ArrayRef<Token> asmtoks, unsigned numoutputs, unsigned numinputs, |
3599 | ArrayRef<StringRef> constraints, |
3600 | ArrayRef<Expr*> exprs, StringRef asmstr, |
3601 | ArrayRef<StringRef> clobbers, SourceLocation endloc); |
3602 | |
3603 | /// Build an empty MS-style inline-assembly statement. |
3604 | explicit MSAsmStmt(EmptyShell Empty) : AsmStmt(MSAsmStmtClass, Empty) {} |
3605 | |
3606 | SourceLocation getLBraceLoc() const { return LBraceLoc; } |
3607 | void setLBraceLoc(SourceLocation L) { LBraceLoc = L; } |
3608 | SourceLocation getEndLoc() const { return EndLoc; } |
3609 | void setEndLoc(SourceLocation L) { EndLoc = L; } |
3610 | |
3611 | bool hasBraces() const { return LBraceLoc.isValid(); } |
3612 | |
3613 | unsigned getNumAsmToks() { return NumAsmToks; } |
3614 | Token *getAsmToks() { return AsmToks; } |
3615 | |
3616 | //===--- Asm String Analysis ---===// |
3617 | StringRef getAsmString() const { return AsmStr; } |
3618 | |
3619 | /// Assemble final IR asm string. |
3620 | std::string generateAsmString(const ASTContext &C) const; |
3621 | |
3622 | //===--- Output operands ---===// |
3623 | |
3624 | StringRef getOutputConstraint(unsigned i) const { |
3625 | assert(i < NumOutputs); |
3626 | return Constraints[i]; |
3627 | } |
3628 | |
3629 | Expr *getOutputExpr(unsigned i); |
3630 | |
3631 | const Expr *getOutputExpr(unsigned i) const { |
3632 | return const_cast<MSAsmStmt*>(this)->getOutputExpr(i); |
3633 | } |
3634 | |
3635 | //===--- Input operands ---===// |
3636 | |
3637 | StringRef getInputConstraint(unsigned i) const { |
3638 | assert(i < NumInputs); |
3639 | return Constraints[i + NumOutputs]; |
3640 | } |
3641 | |
3642 | Expr *getInputExpr(unsigned i); |
3643 | void setInputExpr(unsigned i, Expr *E); |
3644 | |
3645 | const Expr *getInputExpr(unsigned i) const { |
3646 | return const_cast<MSAsmStmt*>(this)->getInputExpr(i); |
3647 | } |
3648 | |
3649 | //===--- Other ---===// |
3650 | |
3651 | ArrayRef<StringRef> getAllConstraints() const { |
3652 | return llvm::ArrayRef(Constraints, NumInputs + NumOutputs); |
3653 | } |
3654 | |
3655 | ArrayRef<StringRef> getClobbers() const { |
3656 | return llvm::ArrayRef(Clobbers, NumClobbers); |
3657 | } |
3658 | |
3659 | ArrayRef<Expr*> getAllExprs() const { |
3660 | return llvm::ArrayRef(reinterpret_cast<Expr **>(Exprs), |
3661 | NumInputs + NumOutputs); |
3662 | } |
3663 | |
3664 | StringRef getClobber(unsigned i) const { return getClobbers()[i]; } |
3665 | |
3666 | private: |
3667 | void initialize(const ASTContext &C, StringRef AsmString, |
3668 | ArrayRef<Token> AsmToks, ArrayRef<StringRef> Constraints, |
3669 | ArrayRef<Expr*> Exprs, ArrayRef<StringRef> Clobbers); |
3670 | |
3671 | public: |
3672 | SourceLocation getBeginLoc() const LLVM_READONLY { return AsmLoc; } |
3673 | |
3674 | static bool classof(const Stmt *T) { |
3675 | return T->getStmtClass() == MSAsmStmtClass; |
3676 | } |
3677 | |
3678 | child_range children() { |
3679 | return child_range(&Exprs[0], &Exprs[NumInputs + NumOutputs]); |
3680 | } |
3681 | |
3682 | const_child_range children() const { |
3683 | return const_child_range(&Exprs[0], &Exprs[NumInputs + NumOutputs]); |
3684 | } |
3685 | }; |
3686 | |
3687 | class SEHExceptStmt : public Stmt { |
3688 | friend class ASTReader; |
3689 | friend class ASTStmtReader; |
3690 | |
3691 | SourceLocation Loc; |
3692 | Stmt *Children[2]; |
3693 | |
3694 | enum { FILTER_EXPR, BLOCK }; |
3695 | |
3696 | SEHExceptStmt(SourceLocation Loc, Expr *FilterExpr, Stmt *Block); |
3697 | explicit SEHExceptStmt(EmptyShell E) : Stmt(SEHExceptStmtClass, E) {} |
3698 | |
3699 | public: |
3700 | static SEHExceptStmt* Create(const ASTContext &C, |
3701 | SourceLocation ExceptLoc, |
3702 | Expr *FilterExpr, |
3703 | Stmt *Block); |
3704 | |
3705 | SourceLocation getBeginLoc() const LLVM_READONLY { return getExceptLoc(); } |
3706 | |
3707 | SourceLocation getExceptLoc() const { return Loc; } |
3708 | SourceLocation getEndLoc() const { return getBlock()->getEndLoc(); } |
3709 | |
3710 | Expr *getFilterExpr() const { |
3711 | return reinterpret_cast<Expr*>(Children[FILTER_EXPR]); |
3712 | } |
3713 | |
3714 | CompoundStmt *getBlock() const { |
3715 | return cast<CompoundStmt>(Children[BLOCK]); |
3716 | } |
3717 | |
3718 | child_range children() { |
3719 | return child_range(Children, Children+2); |
3720 | } |
3721 | |
3722 | const_child_range children() const { |
3723 | return const_child_range(Children, Children + 2); |
3724 | } |
3725 | |
3726 | static bool classof(const Stmt *T) { |
3727 | return T->getStmtClass() == SEHExceptStmtClass; |
3728 | } |
3729 | }; |
3730 | |
3731 | class SEHFinallyStmt : public Stmt { |
3732 | friend class ASTReader; |
3733 | friend class ASTStmtReader; |
3734 | |
3735 | SourceLocation Loc; |
3736 | Stmt *Block; |
3737 | |
3738 | SEHFinallyStmt(SourceLocation Loc, Stmt *Block); |
3739 | explicit SEHFinallyStmt(EmptyShell E) : Stmt(SEHFinallyStmtClass, E) {} |
3740 | |
3741 | public: |
3742 | static SEHFinallyStmt* Create(const ASTContext &C, |
3743 | SourceLocation FinallyLoc, |
3744 | Stmt *Block); |
3745 | |
3746 | SourceLocation getBeginLoc() const LLVM_READONLY { return getFinallyLoc(); } |
3747 | |
3748 | SourceLocation getFinallyLoc() const { return Loc; } |
3749 | SourceLocation getEndLoc() const { return Block->getEndLoc(); } |
3750 | |
3751 | CompoundStmt *getBlock() const { return cast<CompoundStmt>(Block); } |
3752 | |
3753 | child_range children() { |
3754 | return child_range(&Block,&Block+1); |
3755 | } |
3756 | |
3757 | const_child_range children() const { |
3758 | return const_child_range(&Block, &Block + 1); |
3759 | } |
3760 | |
3761 | static bool classof(const Stmt *T) { |
3762 | return T->getStmtClass() == SEHFinallyStmtClass; |
3763 | } |
3764 | }; |
3765 | |
3766 | class SEHTryStmt : public Stmt { |
3767 | friend class ASTReader; |
3768 | friend class ASTStmtReader; |
3769 | |
3770 | bool IsCXXTry; |
3771 | SourceLocation TryLoc; |
3772 | Stmt *Children[2]; |
3773 | |
3774 | enum { TRY = 0, HANDLER = 1 }; |
3775 | |
3776 | SEHTryStmt(bool isCXXTry, // true if 'try' otherwise '__try' |
3777 | SourceLocation TryLoc, |
3778 | Stmt *TryBlock, |
3779 | Stmt *Handler); |
3780 | |
3781 | explicit SEHTryStmt(EmptyShell E) : Stmt(SEHTryStmtClass, E) {} |
3782 | |
3783 | public: |
3784 | static SEHTryStmt* Create(const ASTContext &C, bool isCXXTry, |
3785 | SourceLocation TryLoc, Stmt *TryBlock, |
3786 | Stmt *Handler); |
3787 | |
3788 | SourceLocation getBeginLoc() const LLVM_READONLY { return getTryLoc(); } |
3789 | |
3790 | SourceLocation getTryLoc() const { return TryLoc; } |
3791 | SourceLocation getEndLoc() const { return Children[HANDLER]->getEndLoc(); } |
3792 | |
3793 | bool getIsCXXTry() const { return IsCXXTry; } |
3794 | |
3795 | CompoundStmt* getTryBlock() const { |
3796 | return cast<CompoundStmt>(Children[TRY]); |
3797 | } |
3798 | |
3799 | Stmt *getHandler() const { return Children[HANDLER]; } |
3800 | |
3801 | /// Returns 0 if not defined |
3802 | SEHExceptStmt *getExceptHandler() const; |
3803 | SEHFinallyStmt *getFinallyHandler() const; |
3804 | |
3805 | child_range children() { |
3806 | return child_range(Children, Children+2); |
3807 | } |
3808 | |
3809 | const_child_range children() const { |
3810 | return const_child_range(Children, Children + 2); |
3811 | } |
3812 | |
3813 | static bool classof(const Stmt *T) { |
3814 | return T->getStmtClass() == SEHTryStmtClass; |
3815 | } |
3816 | }; |
3817 | |
3818 | /// Represents a __leave statement. |
3819 | class SEHLeaveStmt : public Stmt { |
3820 | SourceLocation LeaveLoc; |
3821 | |
3822 | public: |
3823 | explicit SEHLeaveStmt(SourceLocation LL) |
3824 | : Stmt(SEHLeaveStmtClass), LeaveLoc(LL) {} |
3825 | |
3826 | /// Build an empty __leave statement. |
3827 | explicit SEHLeaveStmt(EmptyShell Empty) : Stmt(SEHLeaveStmtClass, Empty) {} |
3828 | |
3829 | SourceLocation getLeaveLoc() const { return LeaveLoc; } |
3830 | void setLeaveLoc(SourceLocation L) { LeaveLoc = L; } |
3831 | |
3832 | SourceLocation getBeginLoc() const LLVM_READONLY { return LeaveLoc; } |
3833 | SourceLocation getEndLoc() const LLVM_READONLY { return LeaveLoc; } |
3834 | |
3835 | static bool classof(const Stmt *T) { |
3836 | return T->getStmtClass() == SEHLeaveStmtClass; |
3837 | } |
3838 | |
3839 | // Iterators |
3840 | child_range children() { |
3841 | return child_range(child_iterator(), child_iterator()); |
3842 | } |
3843 | |
3844 | const_child_range children() const { |
3845 | return const_child_range(const_child_iterator(), const_child_iterator()); |
3846 | } |
3847 | }; |
3848 | |
3849 | /// This captures a statement into a function. For example, the following |
3850 | /// pragma annotated compound statement can be represented as a CapturedStmt, |
3851 | /// and this compound statement is the body of an anonymous outlined function. |
3852 | /// @code |
3853 | /// #pragma omp parallel |
3854 | /// { |
3855 | /// compute(); |
3856 | /// } |
3857 | /// @endcode |
3858 | class CapturedStmt : public Stmt { |
3859 | public: |
3860 | /// The different capture forms: by 'this', by reference, capture for |
3861 | /// variable-length array type etc. |
3862 | enum VariableCaptureKind { |
3863 | VCK_This, |
3864 | VCK_ByRef, |
3865 | VCK_ByCopy, |
3866 | VCK_VLAType, |
3867 | }; |
3868 | |
3869 | /// Describes the capture of either a variable, or 'this', or |
3870 | /// variable-length array type. |
3871 | class Capture { |
3872 | llvm::PointerIntPair<VarDecl *, 2, VariableCaptureKind> VarAndKind; |
3873 | SourceLocation Loc; |
3874 | |
3875 | Capture() = default; |
3876 | |
3877 | public: |
3878 | friend class ASTStmtReader; |
3879 | friend class CapturedStmt; |
3880 | |
3881 | /// Create a new capture. |
3882 | /// |
3883 | /// \param Loc The source location associated with this capture. |
3884 | /// |
3885 | /// \param Kind The kind of capture (this, ByRef, ...). |
3886 | /// |
3887 | /// \param Var The variable being captured, or null if capturing this. |
3888 | Capture(SourceLocation Loc, VariableCaptureKind Kind, |
3889 | VarDecl *Var = nullptr); |
3890 | |
3891 | /// Determine the kind of capture. |
3892 | VariableCaptureKind getCaptureKind() const; |
3893 | |
3894 | /// Retrieve the source location at which the variable or 'this' was |
3895 | /// first used. |
3896 | SourceLocation getLocation() const { return Loc; } |
3897 | |
3898 | /// Determine whether this capture handles the C++ 'this' pointer. |
3899 | bool capturesThis() const { return getCaptureKind() == VCK_This; } |
3900 | |
3901 | /// Determine whether this capture handles a variable (by reference). |
3902 | bool capturesVariable() const { return getCaptureKind() == VCK_ByRef; } |
3903 | |
3904 | /// Determine whether this capture handles a variable by copy. |
3905 | bool capturesVariableByCopy() const { |
3906 | return getCaptureKind() == VCK_ByCopy; |
3907 | } |
3908 | |
3909 | /// Determine whether this capture handles a variable-length array |
3910 | /// type. |
3911 | bool capturesVariableArrayType() const { |
3912 | return getCaptureKind() == VCK_VLAType; |
3913 | } |
3914 | |
3915 | /// Retrieve the declaration of the variable being captured. |
3916 | /// |
3917 | /// This operation is only valid if this capture captures a variable. |
3918 | VarDecl *getCapturedVar() const; |
3919 | }; |
3920 | |
3921 | private: |
3922 | /// The number of variable captured, including 'this'. |
3923 | unsigned NumCaptures; |
3924 | |
3925 | /// The pointer part is the implicit the outlined function and the |
3926 | /// int part is the captured region kind, 'CR_Default' etc. |
3927 | llvm::PointerIntPair<CapturedDecl *, 2, CapturedRegionKind> CapDeclAndKind; |
3928 | |
3929 | /// The record for captured variables, a RecordDecl or CXXRecordDecl. |
3930 | RecordDecl *TheRecordDecl = nullptr; |
3931 | |
3932 | /// Construct a captured statement. |
3933 | CapturedStmt(Stmt *S, CapturedRegionKind Kind, ArrayRef<Capture> Captures, |
3934 | ArrayRef<Expr *> CaptureInits, CapturedDecl *CD, RecordDecl *RD); |
3935 | |
3936 | /// Construct an empty captured statement. |
3937 | CapturedStmt(EmptyShell Empty, unsigned NumCaptures); |
3938 | |
3939 | Stmt **getStoredStmts() { return reinterpret_cast<Stmt **>(this + 1); } |
3940 | |
3941 | Stmt *const *getStoredStmts() const { |
3942 | return reinterpret_cast<Stmt *const *>(this + 1); |
3943 | } |
3944 | |
3945 | Capture *getStoredCaptures() const; |
3946 | |
3947 | void setCapturedStmt(Stmt *S) { getStoredStmts()[NumCaptures] = S; } |
3948 | |
3949 | public: |
3950 | friend class ASTStmtReader; |
3951 | |
3952 | static CapturedStmt *Create(const ASTContext &Context, Stmt *S, |
3953 | CapturedRegionKind Kind, |
3954 | ArrayRef<Capture> Captures, |
3955 | ArrayRef<Expr *> CaptureInits, |
3956 | CapturedDecl *CD, RecordDecl *RD); |
3957 | |
3958 | static CapturedStmt *CreateDeserialized(const ASTContext &Context, |
3959 | unsigned NumCaptures); |
3960 | |
3961 | /// Retrieve the statement being captured. |
3962 | Stmt *getCapturedStmt() { return getStoredStmts()[NumCaptures]; } |
3963 | const Stmt *getCapturedStmt() const { return getStoredStmts()[NumCaptures]; } |
3964 | |
3965 | /// Retrieve the outlined function declaration. |
3966 | CapturedDecl *getCapturedDecl(); |
3967 | const CapturedDecl *getCapturedDecl() const; |
3968 | |
3969 | /// Set the outlined function declaration. |
3970 | void setCapturedDecl(CapturedDecl *D); |
3971 | |
3972 | /// Retrieve the captured region kind. |
3973 | CapturedRegionKind getCapturedRegionKind() const; |
3974 | |
3975 | /// Set the captured region kind. |
3976 | void setCapturedRegionKind(CapturedRegionKind Kind); |
3977 | |
3978 | /// Retrieve the record declaration for captured variables. |
3979 | const RecordDecl *getCapturedRecordDecl() const { return TheRecordDecl; } |
3980 | |
3981 | /// Set the record declaration for captured variables. |
3982 | void setCapturedRecordDecl(RecordDecl *D) { |
3983 | assert(D && "null RecordDecl"); |
3984 | TheRecordDecl = D; |
3985 | } |
3986 | |
3987 | /// True if this variable has been captured. |
3988 | bool capturesVariable(const VarDecl *Var) const; |
3989 | |
3990 | /// An iterator that walks over the captures. |
3991 | using capture_iterator = Capture *; |
3992 | using const_capture_iterator = const Capture *; |
3993 | using capture_range = llvm::iterator_range<capture_iterator>; |
3994 | using capture_const_range = llvm::iterator_range<const_capture_iterator>; |
3995 | |
3996 | capture_range captures() { |
3997 | return capture_range(capture_begin(), capture_end()); |
3998 | } |
3999 | capture_const_range captures() const { |
4000 | return capture_const_range(capture_begin(), capture_end()); |
4001 | } |
4002 | |
4003 | /// Retrieve an iterator pointing to the first capture. |
4004 | capture_iterator capture_begin() { return getStoredCaptures(); } |
4005 | const_capture_iterator capture_begin() const { return getStoredCaptures(); } |
4006 | |
4007 | /// Retrieve an iterator pointing past the end of the sequence of |
4008 | /// captures. |
4009 | capture_iterator capture_end() const { |
4010 | return getStoredCaptures() + NumCaptures; |
4011 | } |
4012 | |
4013 | /// Retrieve the number of captures, including 'this'. |
4014 | unsigned capture_size() const { return NumCaptures; } |
4015 | |
4016 | /// Iterator that walks over the capture initialization arguments. |
4017 | using capture_init_iterator = Expr **; |
4018 | using capture_init_range = llvm::iterator_range<capture_init_iterator>; |
4019 | |
4020 | /// Const iterator that walks over the capture initialization |
4021 | /// arguments. |
4022 | using const_capture_init_iterator = Expr *const *; |
4023 | using const_capture_init_range = |
4024 | llvm::iterator_range<const_capture_init_iterator>; |
4025 | |
4026 | capture_init_range capture_inits() { |
4027 | return capture_init_range(capture_init_begin(), capture_init_end()); |
4028 | } |
4029 | |
4030 | const_capture_init_range capture_inits() const { |
4031 | return const_capture_init_range(capture_init_begin(), capture_init_end()); |
4032 | } |
4033 | |
4034 | /// Retrieve the first initialization argument. |
4035 | capture_init_iterator capture_init_begin() { |
4036 | return reinterpret_cast<Expr **>(getStoredStmts()); |
4037 | } |
4038 | |
4039 | const_capture_init_iterator capture_init_begin() const { |
4040 | return reinterpret_cast<Expr *const *>(getStoredStmts()); |
4041 | } |
4042 | |
4043 | /// Retrieve the iterator pointing one past the last initialization |
4044 | /// argument. |
4045 | capture_init_iterator capture_init_end() { |
4046 | return capture_init_begin() + NumCaptures; |
4047 | } |
4048 | |
4049 | const_capture_init_iterator capture_init_end() const { |
4050 | return capture_init_begin() + NumCaptures; |
4051 | } |
4052 | |
4053 | SourceLocation getBeginLoc() const LLVM_READONLY { |
4054 | return getCapturedStmt()->getBeginLoc(); |
4055 | } |
4056 | |
4057 | SourceLocation getEndLoc() const LLVM_READONLY { |
4058 | return getCapturedStmt()->getEndLoc(); |
4059 | } |
4060 | |
4061 | SourceRange getSourceRange() const LLVM_READONLY { |
4062 | return getCapturedStmt()->getSourceRange(); |
4063 | } |
4064 | |
4065 | static bool classof(const Stmt *T) { |
4066 | return T->getStmtClass() == CapturedStmtClass; |
4067 | } |
4068 | |
4069 | child_range children(); |
4070 | |
4071 | const_child_range children() const; |
4072 | }; |
4073 | |
4074 | } // namespace clang |
4075 | |
4076 | #endif // LLVM_CLANG_AST_STMT_H |
4077 |
Definitions
- Stmt
- StmtClass
- operator new
- operator delete
- StmtBitfields
- NullStmtBitfields
- CompoundStmtBitfields
- LabelStmtBitfields
- AttributedStmtBitfields
- IfStmtBitfields
- SwitchStmtBitfields
- WhileStmtBitfields
- DoStmtBitfields
- ForStmtBitfields
- GotoStmtBitfields
- ContinueStmtBitfields
- BreakStmtBitfields
- ReturnStmtBitfields
- SwitchCaseBitfields
- ExprBitfields
- ConstantExprBitfields
- PredefinedExprBitfields
- DeclRefExprBitfields
- FloatingLiteralBitfields
- StringLiteralBitfields
- CharacterLiteralBitfields
- UnaryOperatorBitfields
- UnaryExprOrTypeTraitExprBitfields
- ArrayOrMatrixSubscriptExprBitfields
- CallExprBitfields
- MemberExprBitfields
- CastExprBitfields
- BinaryOperatorBitfields
- InitListExprBitfields
- ParenListExprBitfields
- GenericSelectionExprBitfields
- PseudoObjectExprBitfields
- SourceLocExprBitfields
- ParenExprBitfields
- ShuffleVectorExprBitfields
- StmtExprBitfields
- ChooseExprBitfields
- CXXOperatorCallExprBitfields
- CXXRewrittenBinaryOperatorBitfields
- CXXBoolLiteralExprBitfields
- CXXNullPtrLiteralExprBitfields
- CXXThisExprBitfields
- CXXThrowExprBitfields
- CXXDefaultArgExprBitfields
- CXXDefaultInitExprBitfields
- CXXScalarValueInitExprBitfields
- CXXNewExprBitfields
- CXXDeleteExprBitfields
- TypeTraitExprBitfields
- DependentScopeDeclRefExprBitfields
- CXXConstructExprBitfields
- ExprWithCleanupsBitfields
- CXXUnresolvedConstructExprBitfields
- CXXDependentScopeMemberExprBitfields
- OverloadExprBitfields
- UnresolvedLookupExprBitfields
- UnresolvedMemberExprBitfields
- CXXNoexceptExprBitfields
- SubstNonTypeTemplateParmExprBitfields
- LambdaExprBitfields
- RequiresExprBitfields
- ArrayTypeTraitExprBitfields
- ExpressionTraitExprBitfields
- CXXFoldExprBitfields
- PackIndexingExprBitfields
- CoawaitExprBitfields
- ObjCIndirectCopyRestoreExprBitfields
- OpaqueValueExprBitfields
- ConvertVectorExprBitfields
- operator new
- operator new
- operator delete
- operator delete
- operator delete
- operator delete
- EmptyShell
- Likelihood
- CastIterator
- CastIterator
- CastIterator
- operator*
- Stmt
- Stmt
- Stmt
- Stmt
- operator=
- operator=
- Stmt
- getStmtClass
- IgnoreContainers
- stripLabelLikeStatements
- children
- child_begin
- child_end
- child_begin
- child_end
- DeclStmt
- DeclStmt
- DeclStmt
- isSingleDecl
- getSingleDecl
- getSingleDecl
- getDeclGroup
- getDeclGroup
- setDeclGroup
- setStartLoc
- getEndLoc
- setEndLoc
- getBeginLoc
- classof
- children
- children
- decls
- decls
- decl_begin
- decl_end
- decl_begin
- decl_end
- decl_rbegin
- decl_rend
- NullStmt
- NullStmt
- NullStmt
- getSemiLoc
- setSemiLoc
- hasLeadingEmptyMacro
- getBeginLoc
- getEndLoc
- classof
- children
- children
- CompoundStmt
- CompoundStmt
- setStoredFPFeatures
- numTrailingObjects
- CompoundStmt
- CompoundStmt
- body_empty
- size
- hasStoredFPFeatures
- getStoredFPFeatures
- getStoredFPFeaturesOrDefault
- body
- body_begin
- body_end
- body_front
- body_back
- body
- body_begin
- body_end
- body_front
- body_back
- body_rbegin
- body_rend
- body_rbegin
- body_rend
- getStmtExprResult
- getStmtExprResult
- getBeginLoc
- getEndLoc
- getLBracLoc
- getRBracLoc
- classof
- children
- children
- SwitchCase
- SwitchCase
- SwitchCase
- getNextSwitchCase
- getNextSwitchCase
- setNextSwitchCase
- getKeywordLoc
- setKeywordLoc
- getColonLoc
- setColonLoc
- getSubStmt
- getBeginLoc
- classof
- CaseStmt
- numTrailingObjects
- lhsOffset
- rhsOffset
- subStmtOffset
- CaseStmt
- CaseStmt
- caseStmtIsGNURange
- getCaseLoc
- setCaseLoc
- getEllipsisLoc
- setEllipsisLoc
- getLHS
- getLHS
- setLHS
- getRHS
- getRHS
- setRHS
- getSubStmt
- getSubStmt
- setSubStmt
- getBeginLoc
- getEndLoc
- classof
- children
- children
- DefaultStmt
- DefaultStmt
- DefaultStmt
- getSubStmt
- getSubStmt
- setSubStmt
- getDefaultLoc
- setDefaultLoc
- getBeginLoc
- getEndLoc
- classof
- children
- children
- getEndLoc
- getSubStmt
- ValueStmt
- getExprStmt
- classof
- LabelStmt
- LabelStmt
- LabelStmt
- getIdentLoc
- setIdentLoc
- getDecl
- setDecl
- getSubStmt
- getSubStmt
- setSubStmt
- getBeginLoc
- getEndLoc
- children
- children
- classof
- isSideEntry
- setSideEntry
- AttributedStmt
- AttributedStmt
- AttributedStmt
- getAttrArrayPtr
- getAttrArrayPtr
- getAttrLoc
- getAttrs
- getSubStmt
- getSubStmt
- getBeginLoc
- getEndLoc
- children
- children
- classof
- IfStmt
- numTrailingObjects
- numTrailingObjects
- initOffset
- varOffset
- condOffset
- thenOffset
- elseOffset
- hasInitStorage
- hasVarStorage
- hasElseStorage
- getCond
- getCond
- setCond
- getThen
- getThen
- setThen
- getElse
- getElse
- setElse
- getConditionVariable
- getConditionVariableDeclStmt
- getConditionVariableDeclStmt
- setConditionVariableDeclStmt
- getInit
- getInit
- setInit
- getIfLoc
- setIfLoc
- getElseLoc
- setElseLoc
- isConsteval
- isNonNegatedConsteval
- isNegatedConsteval
- isConstexpr
- setStatementKind
- getStatementKind
- getBeginLoc
- getEndLoc
- getLParenLoc
- setLParenLoc
- getRParenLoc
- setRParenLoc
- children
- children
- classof
- SwitchStmt
- numTrailingStatements
- initOffset
- varOffset
- condOffset
- bodyOffset
- hasInitStorage
- hasVarStorage
- getCond
- getCond
- setCond
- getBody
- getBody
- setBody
- getInit
- getInit
- setInit
- getConditionVariable
- getConditionVariableDeclStmt
- getConditionVariableDeclStmt
- setConditionVariableDeclStmt
- getSwitchCaseList
- getSwitchCaseList
- setSwitchCaseList
- getSwitchLoc
- setSwitchLoc
- getLParenLoc
- setLParenLoc
- getRParenLoc
- setRParenLoc
- setBody
- addSwitchCase
- setAllEnumCasesCovered
- isAllEnumCasesCovered
- getBeginLoc
- getEndLoc
- children
- children
- classof
- WhileStmt
- varOffset
- condOffset
- bodyOffset
- numTrailingStatements
- hasVarStorage
- getCond
- getCond
- setCond
- getBody
- getBody
- setBody
- getConditionVariable
- getConditionVariableDeclStmt
- getConditionVariableDeclStmt
- setConditionVariableDeclStmt
- getWhileLoc
- setWhileLoc
- getLParenLoc
- setLParenLoc
- getRParenLoc
- setRParenLoc
- getBeginLoc
- getEndLoc
- classof
- children
- children
- DoStmt
- DoStmt
- DoStmt
- getCond
- getCond
- setCond
- getBody
- getBody
- setBody
- getDoLoc
- setDoLoc
- getWhileLoc
- setWhileLoc
- getRParenLoc
- setRParenLoc
- getBeginLoc
- getEndLoc
- classof
- children
- children
- ForStmt
- ForStmt
- getInit
- getConditionVariableDeclStmt
- getConditionVariableDeclStmt
- setConditionVariableDeclStmt
- getCond
- getInc
- getBody
- getInit
- getCond
- getInc
- getBody
- setInit
- setCond
- setInc
- setBody
- getForLoc
- setForLoc
- getLParenLoc
- setLParenLoc
- getRParenLoc
- setRParenLoc
- getBeginLoc
- getEndLoc
- classof
- children
- children
- GotoStmt
- GotoStmt
- GotoStmt
- getLabel
- setLabel
- getGotoLoc
- setGotoLoc
- getLabelLoc
- setLabelLoc
- getBeginLoc
- getEndLoc
- classof
- children
- children
- IndirectGotoStmt
- IndirectGotoStmt
- IndirectGotoStmt
- setGotoLoc
- getGotoLoc
- setStarLoc
- getStarLoc
- getTarget
- getTarget
- setTarget
- getConstantTarget
- getBeginLoc
- getEndLoc
- classof
- children
- children
- ContinueStmt
- ContinueStmt
- ContinueStmt
- getContinueLoc
- setContinueLoc
- getBeginLoc
- getEndLoc
- classof
- children
- children
- BreakStmt
- BreakStmt
- BreakStmt
- getBreakLoc
- setBreakLoc
- getBeginLoc
- getEndLoc
- classof
- children
- children
- ReturnStmt
- hasNRVOCandidate
- getRetValue
- getRetValue
- setRetValue
- getNRVOCandidate
- setNRVOCandidate
- getReturnLoc
- setReturnLoc
- getBeginLoc
- getEndLoc
- classof
- children
- children
- AsmStmt
- AsmStmt
- AsmStmt
- getAsmLoc
- setAsmLoc
- isSimple
- setSimple
- isVolatile
- setVolatile
- getBeginLoc
- getEndLoc
- getNumOutputs
- isOutputPlusConstraint
- getNumInputs
- getNumClobbers
- classof
- begin_inputs
- end_inputs
- inputs
- begin_inputs
- end_inputs
- inputs
- begin_outputs
- end_outputs
- outputs
- begin_outputs
- end_outputs
- outputs
- children
- children
- GCCAsmStmt
- GCCAsmStmt
- getRParenLoc
- setRParenLoc
- getAsmStringExpr
- getAsmStringExpr
- setAsmStringExpr
- AsmStringPiece
- Kind
- AsmStringPiece
- AsmStringPiece
- isString
- isOperand
- getString
- getOperandNo
- getRange
- getOutputIdentifier
- getOutputName
- getOutputConstraintExpr
- getOutputConstraintExpr
- getOutputExpr
- getInputIdentifier
- getInputName
- getInputConstraintExpr
- getInputConstraintExpr
- getInputExpr
- isAsmGoto
- getNumLabels
- getLabelIdentifier
- begin_labels
- end_labels
- labels
- begin_labels
- end_labels
- labels
- getClobberExpr
- getClobberExpr
- getBeginLoc
- getEndLoc
- classof
- MSAsmStmt
- MSAsmStmt
- getLBraceLoc
- setLBraceLoc
- getEndLoc
- setEndLoc
- hasBraces
- getNumAsmToks
- getAsmToks
- getAsmString
- getOutputConstraint
- getOutputExpr
- getInputConstraint
- getInputExpr
- getAllConstraints
- getClobbers
- getAllExprs
- getClobber
- getBeginLoc
- classof
- children
- children
- SEHExceptStmt
- SEHExceptStmt
- getBeginLoc
- getExceptLoc
- getEndLoc
- getFilterExpr
- getBlock
- children
- children
- classof
- SEHFinallyStmt
- SEHFinallyStmt
- getBeginLoc
- getFinallyLoc
- getEndLoc
- getBlock
- children
- children
- classof
- SEHTryStmt
- SEHTryStmt
- getBeginLoc
- getTryLoc
- getEndLoc
- getIsCXXTry
- getTryBlock
- getHandler
- children
- children
- classof
- SEHLeaveStmt
- SEHLeaveStmt
- SEHLeaveStmt
- getLeaveLoc
- setLeaveLoc
- getBeginLoc
- getEndLoc
- classof
- children
- children
- CapturedStmt
- VariableCaptureKind
- Capture
- Capture
- getLocation
- capturesThis
- capturesVariable
- capturesVariableByCopy
- capturesVariableArrayType
- getStoredStmts
- getStoredStmts
- setCapturedStmt
- getCapturedStmt
- getCapturedStmt
- getCapturedRecordDecl
- setCapturedRecordDecl
- captures
- captures
- capture_begin
- capture_begin
- capture_end
- capture_size
- capture_inits
- capture_inits
- capture_init_begin
- capture_init_begin
- capture_init_end
- capture_init_end
- getBeginLoc
- getEndLoc
- getSourceRange
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