source: src/Common/PassVisitor.h@ b56ad5e

ADT ast-experimental enum forall-pointer-decay pthread-emulation qualifiedEnum
Last change on this file since b56ad5e was 3b0bc16, checked in by Peter A. Buhr <pabuhr@…>, 4 years ago

change class name WhileStmt to WhileDoStmt, add else clause to WhileDoStmt and ForStmt, change names thenPart/ElsePart to then/else_
  • Property mode set to 100644
File size: 29.8 KB
RevLine 
[13932f14]1#pragma once
2
[08fc48f]3// IWYU pragma: private, include "Common/PassVisitor.h"
4
[296b2be]5#include <stack>
[02fdb8e]6#include <type_traits>
[296b2be]7
[675716e]8#include "Common/Stats.h"
[3c398b6]9#include "Common/utility.h"
10
[ab904dc]11#include "SynTree/Mutator.h"
[13932f14]12#include "SynTree/Visitor.h"
13
[e0886db]14#include "SymTab/Indexer.h"
15
[5ea7a22]16#include "SynTree/Attribute.h"
[ab904dc]17#include "SynTree/Initializer.h"
18#include "SynTree/Statement.h"
19#include "SynTree/Type.h"
20#include "SynTree/Declaration.h"
21#include "SynTree/Expression.h"
22#include "SynTree/Constant.h"
[07c178f0]23
24class TypeSubstitution;
[ab904dc]25
[296b2be]26#include "PassVisitor.proto.h"
[ab904dc]27
[13932f14]28//-------------------------------------------------------------------------------------------------------------------------------------------------------------------------
[5d88a0a]29// Templated visitor type
30// To use declare a PassVisitor< YOUR VISITOR TYPE >
[5e298d7]31// The visitor type should specify the previsit/postvisit/premutate/postmutate for types that are desired.
[4551a6e]32// Note: previsit/postvisit/premutate/postmutate must be **public** members
[5e298d7]33//
34// Several additional features are available through inheritance
35// | WithTypeSubstitution - provides polymorphic TypeSubstitution * env for the current expression
36// | WithStmtsToAdd - provides the ability to insert statements before or after the current statement by adding new statements into
37// stmtsToAddBefore or stmtsToAddAfter respectively.
[6ca154b]38// | WithShortCircuiting - provides the ability to skip visiting child nodes; set visit_children to false in pre{visit,mutate} to skip visiting children
[d24d4e1]39// | WithGuards - provides the ability to save/restore data like a LIFO stack; to save, call GuardValue with the variable to save, the variable
[5e298d7]40// will automatically be restored to its previous value after the corresponding postvisit/postmutate teminates.
[13932f14]41//-------------------------------------------------------------------------------------------------------------------------------------------------------------------------
42template< typename pass_type >
[ab904dc]43class PassVisitor final : public Visitor, public Mutator {
[13932f14]44public:
45
46 template< typename... Args >
[aff3af4]47 PassVisitor(Args &&... args)
[13932f14]48 : pass( std::forward<Args>( args )... )
[b73bd70]49 {
50 typedef PassVisitor<pass_type> this_t;
51 this_t * const * visitor = visitor_impl(pass, 0);
52 if(visitor) {
53 *const_cast<this_t **>( visitor ) = this;
54 }
55 }
[13932f14]56
57 virtual ~PassVisitor() = default;
58
[aff3af4]59 pass_type pass;
[13932f14]60
[5ea7a22]61 virtual void visit( ObjectDecl * objectDecl ) override final;
[7870799]62 virtual void visit( const ObjectDecl * objectDecl ) override final;
[5ea7a22]63 virtual void visit( FunctionDecl * functionDecl ) override final;
[7870799]64 virtual void visit( const FunctionDecl * functionDecl ) override final;
[5ea7a22]65 virtual void visit( StructDecl * aggregateDecl ) override final;
[7870799]66 virtual void visit( const StructDecl * aggregateDecl ) override final;
[5ea7a22]67 virtual void visit( UnionDecl * aggregateDecl ) override final;
[7870799]68 virtual void visit( const UnionDecl * aggregateDecl ) override final;
[5ea7a22]69 virtual void visit( EnumDecl * aggregateDecl ) override final;
[7870799]70 virtual void visit( const EnumDecl * aggregateDecl ) override final;
[5ea7a22]71 virtual void visit( TraitDecl * aggregateDecl ) override final;
[7870799]72 virtual void visit( const TraitDecl * aggregateDecl ) override final;
[5ea7a22]73 virtual void visit( TypeDecl * typeDecl ) override final;
[7870799]74 virtual void visit( const TypeDecl * typeDecl ) override final;
[5ea7a22]75 virtual void visit( TypedefDecl * typeDecl ) override final;
[7870799]76 virtual void visit( const TypedefDecl * typeDecl ) override final;
[5ea7a22]77 virtual void visit( AsmDecl * asmDecl ) override final;
[7870799]78 virtual void visit( const AsmDecl * asmDecl ) override final;
[2d019af]79 virtual void visit( DirectiveDecl * directiveDecl ) override final;
80 virtual void visit( const DirectiveDecl * directiveDecl ) override final;
[f6e3e34]81 virtual void visit( StaticAssertDecl * assertDecl ) override final;
[7870799]82 virtual void visit( const StaticAssertDecl * assertDecl ) override final;
[5ea7a22]83
84 virtual void visit( CompoundStmt * compoundStmt ) override final;
[7870799]85 virtual void visit( const CompoundStmt * compoundStmt ) override final;
[5ea7a22]86 virtual void visit( ExprStmt * exprStmt ) override final;
[7870799]87 virtual void visit( const ExprStmt * exprStmt ) override final;
[5ea7a22]88 virtual void visit( AsmStmt * asmStmt ) override final;
[7870799]89 virtual void visit( const AsmStmt * asmStmt ) override final;
[cc32d83]90 virtual void visit( DirectiveStmt * dirStmt ) override final;
[7870799]91 virtual void visit( const DirectiveStmt * dirStmt ) override final;
[5ea7a22]92 virtual void visit( IfStmt * ifStmt ) override final;
[7870799]93 virtual void visit( const IfStmt * ifStmt ) override final;
[3b0bc16]94 virtual void visit( WhileDoStmt * whileDoStmt ) override final;
95 virtual void visit( const WhileDoStmt * whileDoStmt ) override final;
[5ea7a22]96 virtual void visit( ForStmt * forStmt ) override final;
[7870799]97 virtual void visit( const ForStmt * forStmt ) override final;
[5ea7a22]98 virtual void visit( SwitchStmt * switchStmt ) override final;
[7870799]99 virtual void visit( const SwitchStmt * switchStmt ) override final;
[5ea7a22]100 virtual void visit( CaseStmt * caseStmt ) override final;
[7870799]101 virtual void visit( const CaseStmt * caseStmt ) override final;
[5ea7a22]102 virtual void visit( BranchStmt * branchStmt ) override final;
[7870799]103 virtual void visit( const BranchStmt * branchStmt ) override final;
[5ea7a22]104 virtual void visit( ReturnStmt * returnStmt ) override final;
[7870799]105 virtual void visit( const ReturnStmt * returnStmt ) override final;
[5ea7a22]106 virtual void visit( ThrowStmt * throwStmt ) override final;
[7870799]107 virtual void visit( const ThrowStmt * throwStmt ) override final;
[5ea7a22]108 virtual void visit( TryStmt * tryStmt ) override final;
[7870799]109 virtual void visit( const TryStmt * tryStmt ) override final;
[5ea7a22]110 virtual void visit( CatchStmt * catchStmt ) override final;
[7870799]111 virtual void visit( const CatchStmt * catchStmt ) override final;
[5ea7a22]112 virtual void visit( FinallyStmt * finallyStmt ) override final;
[7870799]113 virtual void visit( const FinallyStmt * finallyStmt ) override final;
[37cdd97]114 virtual void visit( SuspendStmt * suspendStmt ) override final;
115 virtual void visit( const SuspendStmt * suspendStmt ) override final;
[5ea7a22]116 virtual void visit( WaitForStmt * waitforStmt ) override final;
[7870799]117 virtual void visit( const WaitForStmt * waitforStmt ) override final;
[61255ad]118 virtual void visit( WithStmt * withStmt ) override final;
[7870799]119 virtual void visit( const WithStmt * withStmt ) override final;
[5ea7a22]120 virtual void visit( NullStmt * nullStmt ) override final;
[7870799]121 virtual void visit( const NullStmt * nullStmt ) override final;
[5ea7a22]122 virtual void visit( DeclStmt * declStmt ) override final;
[7870799]123 virtual void visit( const DeclStmt * declStmt ) override final;
[5ea7a22]124 virtual void visit( ImplicitCtorDtorStmt * impCtorDtorStmt ) override final;
[7870799]125 virtual void visit( const ImplicitCtorDtorStmt * impCtorDtorStmt ) override final;
[6cebfef]126 virtual void visit( MutexStmt * mutexStmt ) override final;
127 virtual void visit( const MutexStmt * mutexStmt ) override final;
[5ea7a22]128
129 virtual void visit( ApplicationExpr * applicationExpr ) override final;
[7870799]130 virtual void visit( const ApplicationExpr * applicationExpr ) override final;
[5ea7a22]131 virtual void visit( UntypedExpr * untypedExpr ) override final;
[7870799]132 virtual void visit( const UntypedExpr * untypedExpr ) override final;
[5ea7a22]133 virtual void visit( NameExpr * nameExpr ) override final;
[7870799]134 virtual void visit( const NameExpr * nameExpr ) override final;
[5ea7a22]135 virtual void visit( CastExpr * castExpr ) override final;
[7870799]136 virtual void visit( const CastExpr * castExpr ) override final;
[9a705dc8]137 virtual void visit( KeywordCastExpr * castExpr ) override final;
[7870799]138 virtual void visit( const KeywordCastExpr * castExpr ) override final;
[5ea7a22]139 virtual void visit( VirtualCastExpr * castExpr ) override final;
[7870799]140 virtual void visit( const VirtualCastExpr * castExpr ) override final;
[5ea7a22]141 virtual void visit( AddressExpr * addressExpr ) override final;
[7870799]142 virtual void visit( const AddressExpr * addressExpr ) override final;
[5ea7a22]143 virtual void visit( LabelAddressExpr * labAddressExpr ) override final;
[7870799]144 virtual void visit( const LabelAddressExpr * labAddressExpr ) override final;
[5ea7a22]145 virtual void visit( UntypedMemberExpr * memberExpr ) override final;
[7870799]146 virtual void visit( const UntypedMemberExpr * memberExpr ) override final;
[5ea7a22]147 virtual void visit( MemberExpr * memberExpr ) override final;
[7870799]148 virtual void visit( const MemberExpr * memberExpr ) override final;
[5ea7a22]149 virtual void visit( VariableExpr * variableExpr ) override final;
[7870799]150 virtual void visit( const VariableExpr * variableExpr ) override final;
[5ea7a22]151 virtual void visit( ConstantExpr * constantExpr ) override final;
[7870799]152 virtual void visit( const ConstantExpr * constantExpr ) override final;
[5ea7a22]153 virtual void visit( SizeofExpr * sizeofExpr ) override final;
[7870799]154 virtual void visit( const SizeofExpr * sizeofExpr ) override final;
[5ea7a22]155 virtual void visit( AlignofExpr * alignofExpr ) override final;
[7870799]156 virtual void visit( const AlignofExpr * alignofExpr ) override final;
[5ea7a22]157 virtual void visit( UntypedOffsetofExpr * offsetofExpr ) override final;
[7870799]158 virtual void visit( const UntypedOffsetofExpr * offsetofExpr ) override final;
[5ea7a22]159 virtual void visit( OffsetofExpr * offsetofExpr ) override final;
[7870799]160 virtual void visit( const OffsetofExpr * offsetofExpr ) override final;
[5ea7a22]161 virtual void visit( OffsetPackExpr * offsetPackExpr ) override final;
[7870799]162 virtual void visit( const OffsetPackExpr * offsetPackExpr ) override final;
[5ea7a22]163 virtual void visit( LogicalExpr * logicalExpr ) override final;
[7870799]164 virtual void visit( const LogicalExpr * logicalExpr ) override final;
[5ea7a22]165 virtual void visit( ConditionalExpr * conditionalExpr ) override final;
[7870799]166 virtual void visit( const ConditionalExpr * conditionalExpr ) override final;
[5ea7a22]167 virtual void visit( CommaExpr * commaExpr ) override final;
[7870799]168 virtual void visit( const CommaExpr * commaExpr ) override final;
[5ea7a22]169 virtual void visit( TypeExpr * typeExpr ) override final;
[7870799]170 virtual void visit( const TypeExpr * typeExpr ) override final;
[6e50a6b]171 virtual void visit( DimensionExpr * dimensionExpr ) override final;
172 virtual void visit( const DimensionExpr * dimensionExpr ) override final;
[5ea7a22]173 virtual void visit( AsmExpr * asmExpr ) override final;
[7870799]174 virtual void visit( const AsmExpr * asmExpr ) override final;
[5ea7a22]175 virtual void visit( ImplicitCopyCtorExpr * impCpCtorExpr ) override final;
[7870799]176 virtual void visit( const ImplicitCopyCtorExpr * impCpCtorExpr ) override final;
[5ea7a22]177 virtual void visit( ConstructorExpr * ctorExpr ) override final;
[7870799]178 virtual void visit( const ConstructorExpr * ctorExpr ) override final;
[5ea7a22]179 virtual void visit( CompoundLiteralExpr * compLitExpr ) override final;
[7870799]180 virtual void visit( const CompoundLiteralExpr * compLitExpr ) override final;
[5ea7a22]181 virtual void visit( RangeExpr * rangeExpr ) override final;
[7870799]182 virtual void visit( const RangeExpr * rangeExpr ) override final;
[5ea7a22]183 virtual void visit( UntypedTupleExpr * tupleExpr ) override final;
[7870799]184 virtual void visit( const UntypedTupleExpr * tupleExpr ) override final;
[5ea7a22]185 virtual void visit( TupleExpr * tupleExpr ) override final;
[7870799]186 virtual void visit( const TupleExpr * tupleExpr ) override final;
[5ea7a22]187 virtual void visit( TupleIndexExpr * tupleExpr ) override final;
[7870799]188 virtual void visit( const TupleIndexExpr * tupleExpr ) override final;
[5ea7a22]189 virtual void visit( TupleAssignExpr * assignExpr ) override final;
[7870799]190 virtual void visit( const TupleAssignExpr * assignExpr ) override final;
[5ea7a22]191 virtual void visit( StmtExpr * stmtExpr ) override final;
[7870799]192 virtual void visit( const StmtExpr * stmtExpr ) override final;
[5ea7a22]193 virtual void visit( UniqueExpr * uniqueExpr ) override final;
[7870799]194 virtual void visit( const UniqueExpr * uniqueExpr ) override final;
[73367a8]195 virtual void visit( UntypedInitExpr * initExpr ) override final;
[7870799]196 virtual void visit( const UntypedInitExpr * initExpr ) override final;
[73367a8]197 virtual void visit( InitExpr * initExpr ) override final;
[7870799]198 virtual void visit( const InitExpr * initExpr ) override final;
[44b4114]199 virtual void visit( DeletedExpr * delExpr ) override final;
[7870799]200 virtual void visit( const DeletedExpr * delExpr ) override final;
[0f79853]201 virtual void visit( DefaultArgExpr * argExpr ) override final;
[7870799]202 virtual void visit( const DefaultArgExpr * argExpr ) override final;
[d807ca28]203 virtual void visit( GenericExpr * genExpr ) override final;
[7870799]204 virtual void visit( const GenericExpr * genExpr ) override final;
[5ea7a22]205
206 virtual void visit( VoidType * basicType ) override final;
[7870799]207 virtual void visit( const VoidType * basicType ) override final;
[5ea7a22]208 virtual void visit( BasicType * basicType ) override final;
[7870799]209 virtual void visit( const BasicType * basicType ) override final;
[5ea7a22]210 virtual void visit( PointerType * pointerType ) override final;
[7870799]211 virtual void visit( const PointerType * pointerType ) override final;
[5ea7a22]212 virtual void visit( ArrayType * arrayType ) override final;
[7870799]213 virtual void visit( const ArrayType * arrayType ) override final;
[5ea7a22]214 virtual void visit( ReferenceType * referenceType ) override final;
[7870799]215 virtual void visit( const ReferenceType * referenceType ) override final;
[c5d7701]216 virtual void visit( QualifiedType * qualType ) override final;
[7870799]217 virtual void visit( const QualifiedType * qualType ) override final;
[5ea7a22]218 virtual void visit( FunctionType * functionType ) override final;
[7870799]219 virtual void visit( const FunctionType * functionType ) override final;
[5ea7a22]220 virtual void visit( StructInstType * aggregateUseType ) override final;
[7870799]221 virtual void visit( const StructInstType * aggregateUseType ) override final;
[5ea7a22]222 virtual void visit( UnionInstType * aggregateUseType ) override final;
[7870799]223 virtual void visit( const UnionInstType * aggregateUseType ) override final;
[5ea7a22]224 virtual void visit( EnumInstType * aggregateUseType ) override final;
[7870799]225 virtual void visit( const EnumInstType * aggregateUseType ) override final;
[5ea7a22]226 virtual void visit( TraitInstType * aggregateUseType ) override final;
[7870799]227 virtual void visit( const TraitInstType * aggregateUseType ) override final;
[5ea7a22]228 virtual void visit( TypeInstType * aggregateUseType ) override final;
[7870799]229 virtual void visit( const TypeInstType * aggregateUseType ) override final;
[5ea7a22]230 virtual void visit( TupleType * tupleType ) override final;
[7870799]231 virtual void visit( const TupleType * tupleType ) override final;
[5ea7a22]232 virtual void visit( TypeofType * typeofType ) override final;
[7870799]233 virtual void visit( const TypeofType * typeofType ) override final;
[7ff35e0e]234 virtual void visit( VTableType * vtableType ) override final;
235 virtual void visit( const VTableType * vtableType ) override final;
[5ea7a22]236 virtual void visit( AttrType * attrType ) override final;
[7870799]237 virtual void visit( const AttrType * attrType ) override final;
[5ea7a22]238 virtual void visit( VarArgsType * varArgsType ) override final;
[7870799]239 virtual void visit( const VarArgsType * varArgsType ) override final;
[5ea7a22]240 virtual void visit( ZeroType * zeroType ) override final;
[7870799]241 virtual void visit( const ZeroType * zeroType ) override final;
[5ea7a22]242 virtual void visit( OneType * oneType ) override final;
[7870799]243 virtual void visit( const OneType * oneType ) override final;
[47498bd]244 virtual void visit( GlobalScopeType * globalType ) override final;
[7870799]245 virtual void visit( const GlobalScopeType * globalType ) override final;
[5ea7a22]246
247 virtual void visit( Designation * designation ) override final;
[7870799]248 virtual void visit( const Designation * designation ) override final;
[5ea7a22]249 virtual void visit( SingleInit * singleInit ) override final;
[7870799]250 virtual void visit( const SingleInit * singleInit ) override final;
[5ea7a22]251 virtual void visit( ListInit * listInit ) override final;
[7870799]252 virtual void visit( const ListInit * listInit ) override final;
[5ea7a22]253 virtual void visit( ConstructorInit * ctorInit ) override final;
[7870799]254 virtual void visit( const ConstructorInit * ctorInit ) override final;
[5ea7a22]255
256 virtual void visit( Constant * constant ) override final;
[7870799]257 virtual void visit( const Constant * constant ) override final;
[5ea7a22]258
259 virtual void visit( Attribute * attribute ) override final;
[7870799]260 virtual void visit( const Attribute * attribute ) override final;
[5ea7a22]261
262 virtual DeclarationWithType * mutate( ObjectDecl * objectDecl ) override final;
263 virtual DeclarationWithType * mutate( FunctionDecl * functionDecl ) override final;
264 virtual Declaration * mutate( StructDecl * aggregateDecl ) override final;
265 virtual Declaration * mutate( UnionDecl * aggregateDecl ) override final;
266 virtual Declaration * mutate( EnumDecl * aggregateDecl ) override final;
267 virtual Declaration * mutate( TraitDecl * aggregateDecl ) override final;
268 virtual Declaration * mutate( TypeDecl * typeDecl ) override final;
269 virtual Declaration * mutate( TypedefDecl * typeDecl ) override final;
270 virtual AsmDecl * mutate( AsmDecl * asmDecl ) override final;
[2d019af]271 virtual DirectiveDecl * mutate( DirectiveDecl * directiveDecl ) override final;
[f6e3e34]272 virtual StaticAssertDecl * mutate( StaticAssertDecl * assertDecl ) override final;
[5ea7a22]273
274 virtual CompoundStmt * mutate( CompoundStmt * compoundStmt ) override final;
275 virtual Statement * mutate( ExprStmt * exprStmt ) override final;
276 virtual Statement * mutate( AsmStmt * asmStmt ) override final;
[cc32d83]277 virtual Statement * mutate( DirectiveStmt * dirStmt ) override final;
[5ea7a22]278 virtual Statement * mutate( IfStmt * ifStmt ) override final;
[3b0bc16]279 virtual Statement * mutate( WhileDoStmt * whileDoStmt ) override final;
[5ea7a22]280 virtual Statement * mutate( ForStmt * forStmt ) override final;
281 virtual Statement * mutate( SwitchStmt * switchStmt ) override final;
282 virtual Statement * mutate( CaseStmt * caseStmt ) override final;
283 virtual Statement * mutate( BranchStmt * branchStmt ) override final;
284 virtual Statement * mutate( ReturnStmt * returnStmt ) override final;
285 virtual Statement * mutate( ThrowStmt * throwStmt ) override final;
286 virtual Statement * mutate( TryStmt * tryStmt ) override final;
287 virtual Statement * mutate( CatchStmt * catchStmt ) override final;
288 virtual Statement * mutate( FinallyStmt * finallyStmt ) override final;
[37cdd97]289 virtual Statement * mutate( SuspendStmt * suspendStmt ) override final;
[5ea7a22]290 virtual Statement * mutate( WaitForStmt * waitforStmt ) override final;
[e67991f]291 virtual Declaration * mutate( WithStmt * withStmt ) override final;
[5ea7a22]292 virtual NullStmt * mutate( NullStmt * nullStmt ) override final;
293 virtual Statement * mutate( DeclStmt * declStmt ) override final;
294 virtual Statement * mutate( ImplicitCtorDtorStmt * impCtorDtorStmt ) override final;
[6cebfef]295 virtual Statement * mutate( MutexStmt * mutexStmt ) override final;
[5ea7a22]296
297 virtual Expression * mutate( ApplicationExpr * applicationExpr ) override final;
298 virtual Expression * mutate( UntypedExpr * untypedExpr ) override final;
299 virtual Expression * mutate( NameExpr * nameExpr ) override final;
[9a705dc8]300 virtual Expression * mutate( AddressExpr * addrExpr ) override final;
[5ea7a22]301 virtual Expression * mutate( LabelAddressExpr * labAddressExpr ) override final;
302 virtual Expression * mutate( CastExpr * castExpr ) override final;
[9a705dc8]303 virtual Expression * mutate( KeywordCastExpr * castExpr ) override final;
[5ea7a22]304 virtual Expression * mutate( VirtualCastExpr * castExpr ) override final;
305 virtual Expression * mutate( UntypedMemberExpr * memberExpr ) override final;
306 virtual Expression * mutate( MemberExpr * memberExpr ) override final;
307 virtual Expression * mutate( VariableExpr * variableExpr ) override final;
308 virtual Expression * mutate( ConstantExpr * constantExpr ) override final;
309 virtual Expression * mutate( SizeofExpr * sizeofExpr ) override final;
310 virtual Expression * mutate( AlignofExpr * alignofExpr ) override final;
311 virtual Expression * mutate( UntypedOffsetofExpr * offsetofExpr ) override final;
312 virtual Expression * mutate( OffsetofExpr * offsetofExpr ) override final;
313 virtual Expression * mutate( OffsetPackExpr * offsetPackExpr ) override final;
314 virtual Expression * mutate( LogicalExpr * logicalExpr ) override final;
315 virtual Expression * mutate( ConditionalExpr * conditionalExpr ) override final;
316 virtual Expression * mutate( CommaExpr * commaExpr ) override final;
317 virtual Expression * mutate( TypeExpr * typeExpr ) override final;
[6e50a6b]318 virtual Expression * mutate( DimensionExpr * dimensionExpr ) override final;
[5ea7a22]319 virtual Expression * mutate( AsmExpr * asmExpr ) override final;
320 virtual Expression * mutate( ImplicitCopyCtorExpr * impCpCtorExpr ) override final;
321 virtual Expression * mutate( ConstructorExpr * ctorExpr ) override final;
322 virtual Expression * mutate( CompoundLiteralExpr * compLitExpr ) override final;
323 virtual Expression * mutate( RangeExpr * rangeExpr ) override final;
324 virtual Expression * mutate( UntypedTupleExpr * tupleExpr ) override final;
325 virtual Expression * mutate( TupleExpr * tupleExpr ) override final;
326 virtual Expression * mutate( TupleIndexExpr * tupleExpr ) override final;
327 virtual Expression * mutate( TupleAssignExpr * assignExpr ) override final;
328 virtual Expression * mutate( StmtExpr * stmtExpr ) override final;
329 virtual Expression * mutate( UniqueExpr * uniqueExpr ) override final;
[73367a8]330 virtual Expression * mutate( UntypedInitExpr * initExpr ) override final;
331 virtual Expression * mutate( InitExpr * initExpr ) override final;
[44b4114]332 virtual Expression * mutate( DeletedExpr * delExpr ) override final;
[0f79853]333 virtual Expression * mutate( DefaultArgExpr * argExpr ) override final;
[d807ca28]334 virtual Expression * mutate( GenericExpr * genExpr ) override final;
[5ea7a22]335
336 virtual Type * mutate( VoidType * basicType ) override final;
337 virtual Type * mutate( BasicType * basicType ) override final;
338 virtual Type * mutate( PointerType * pointerType ) override final;
339 virtual Type * mutate( ArrayType * arrayType ) override final;
340 virtual Type * mutate( ReferenceType * referenceType ) override final;
[c5d7701]341 virtual Type * mutate( QualifiedType * qualType ) override final;
[5ea7a22]342 virtual Type * mutate( FunctionType * functionType ) override final;
343 virtual Type * mutate( StructInstType * aggregateUseType ) override final;
344 virtual Type * mutate( UnionInstType * aggregateUseType ) override final;
345 virtual Type * mutate( EnumInstType * aggregateUseType ) override final;
346 virtual Type * mutate( TraitInstType * aggregateUseType ) override final;
347 virtual Type * mutate( TypeInstType * aggregateUseType ) override final;
348 virtual Type * mutate( TupleType * tupleType ) override final;
349 virtual Type * mutate( TypeofType * typeofType ) override final;
[7ff35e0e]350 virtual Type * mutate( VTableType * vtableType ) override final;
[5ea7a22]351 virtual Type * mutate( AttrType * attrType ) override final;
352 virtual Type * mutate( VarArgsType * varArgsType ) override final;
353 virtual Type * mutate( ZeroType * zeroType ) override final;
354 virtual Type * mutate( OneType * oneType ) override final;
[47498bd]355 virtual Type * mutate( GlobalScopeType * globalType ) override final;
[5ea7a22]356
357 virtual Designation * mutate( Designation * designation ) override final;
358 virtual Initializer * mutate( SingleInit * singleInit ) override final;
359 virtual Initializer * mutate( ListInit * listInit ) override final;
360 virtual Initializer * mutate( ConstructorInit * ctorInit ) override final;
361
362 virtual Constant * mutate( Constant * constant ) override final;
363
364 virtual Attribute * mutate( Attribute * attribute ) override final;
[447c356]365
366 virtual TypeSubstitution * mutate( TypeSubstitution * sub ) final;
[ab904dc]367
[53d55b6]368 bool isInFunction() const {
369 return inFunction;
370 }
371
[13932f14]372private:
[61d9b4b]373 bool inFunction = false;
[c6c682cf]374 bool atFunctionTop = false;
[61d9b4b]375
[6ca154b]376 template<typename pass_t> friend void acceptAll( std::list< Declaration* > &decls, PassVisitor< pass_t >& visitor );
[7870799]377 template<typename pass_t> friend void acceptAll( const std::list< const Declaration * > &decls, PassVisitor< pass_t >& visitor );
[6ca154b]378 template<typename pass_t> friend void mutateAll( std::list< Declaration* > &decls, PassVisitor< pass_t >& visitor );
[3c398b6]379 template< typename TreeType, typename pass_t > friend void maybeAccept_impl( TreeType * tree, PassVisitor< pass_t > & visitor );
[7870799]380 template< typename TreeType, typename pass_t > friend void maybeAccept_impl( const TreeType * tree, PassVisitor< pass_t > & visitor );
[3c398b6]381 template< typename TreeType, typename pass_t > friend void maybeMutate_impl( TreeType *& tree, PassVisitor< pass_t > & mutator );
382 template< typename Container, typename pass_t > friend void maybeAccept_impl( Container & container, PassVisitor< pass_t > & visitor );
[7870799]383 template< typename Container, typename pass_t > friend void maybeAccept_impl( const Container & container, PassVisitor< pass_t > & visitor );
[3c398b6]384 template< typename Container, typename pass_t > friend void maybeMutate_impl( Container & container, PassVisitor< pass_t > & mutator );
[6ca154b]385
[296b2be]386 template<typename node_type> void call_previsit ( node_type * node ) { previsit_impl ( pass, node, 0 ); }
[7870799]387 template<typename node_type> void call_previsit ( const node_type * node ) { previsit_impl ( pass, node, 0 ); }
[296b2be]388 template<typename node_type> void call_postvisit( node_type * node ) { postvisit_impl( pass, node, 0 ); }
[7870799]389 template<typename node_type> void call_postvisit( const node_type * node ) { postvisit_impl( pass, node, 0 ); }
[13932f14]390
[296b2be]391 template<typename node_type> void call_premutate ( node_type * node ) { premutate_impl( pass, node, 0 ); }
392 template<typename return_type, typename node_type> return_type call_postmutate ( node_type * node ) { return postmutate_impl<return_type>( pass, node, 0 ); }
[ab904dc]393
[296b2be]394 void call_beginScope() { begin_scope_impl( pass, 0 ); }
395 void call_endScope () { end_scope_impl ( pass, 0 ); }
396
[3fb9a83]397 void set_env( TypeSubstitution * env ) { set_env_impl( pass, env, 0); }
398
[6ca154b]399 template< typename func_t >
400 void handleStatementList( std::list< Statement * > & statements, func_t func );
401 void visitStatementList ( std::list< Statement* > &statements );
[296b2be]402 void mutateStatementList( std::list< Statement* > &statements );
[7870799]403 void visitStatementList ( const std::list< Statement * > & statements );
[134322e]404
[6ca154b]405 template< typename func_t >
406 Statement * handleStatement( Statement * stmt, func_t func );
407 Statement * visitStatement ( Statement * stmt );
[296b2be]408 Statement * mutateStatement( Statement * stmt );
[7870799]409 void visitStatement ( const Statement * stmt );
[134322e]410
[6ca154b]411 template< typename func_t >
412 Expression * handleExpression( Expression * expr, func_t func );
413 Expression * visitExpression ( Expression * expr );
[296b2be]414 Expression * mutateExpression( Expression * expr );
[7870799]415 void visitExpression ( const Expression * expr );
[296b2be]416
[ab904dc]417
[02fdb8e]418 auto get_env_ptr () -> decltype(env_impl( pass, 0)) { return env_impl( pass, 0); }
[134322e]419 std::list< Statement* > * get_beforeStmts() { return stmtsToAddBefore_impl( pass, 0); }
420 std::list< Statement* > * get_afterStmts () { return stmtsToAddAfter_impl ( pass, 0); }
[35df560]421 std::list< Declaration* > * get_beforeDecls() { return declsToAddBefore_impl( pass, 0); }
422 std::list< Declaration* > * get_afterDecls () { return declsToAddAfter_impl ( pass, 0); }
[b73bd70]423
[3c398b6]424 bool get_visit_children () { bool_ref * ptr = visit_children_impl(pass, 0); return ptr ? *ptr : true; }
425 bool_ref * get_visit_children_ptr() { return visit_children_impl(pass, 0); }
[e0886db]426
[4670c79]427 void indexerScopeEnter () { indexer_impl_enterScope ( pass, 0 ); }
428 void indexerScopeLeave () { indexer_impl_leaveScope ( pass, 0 ); }
[e3d7f9f]429 void indexerAddId ( const DeclarationWithType * node ) { indexer_impl_addId ( pass, 0, node ); }
430 void indexerAddType ( const NamedTypeDecl * node ) { indexer_impl_addType ( pass, 0, node ); }
[4670c79]431 void indexerAddStruct ( const std::string & id ) { indexer_impl_addStruct ( pass, 0, id ); }
[e3d7f9f]432 void indexerAddStruct ( const StructDecl * node ) { indexer_impl_addStruct ( pass, 0, node ); }
433 void indexerAddStructFwd( const StructDecl * node ) { indexer_impl_addStructFwd( pass, 0, node ); }
434 void indexerAddEnum ( const EnumDecl * node ) { indexer_impl_addEnum ( pass, 0, node ); }
[4670c79]435 void indexerAddUnion ( const std::string & id ) { indexer_impl_addUnion ( pass, 0, id ); }
[e3d7f9f]436 void indexerAddUnion ( const UnionDecl * node ) { indexer_impl_addUnion ( pass, 0, node ); }
437 void indexerAddUnionFwd ( const UnionDecl * node ) { indexer_impl_addUnionFwd ( pass, 0, node ); }
438 void indexerAddTrait ( const TraitDecl * node ) { indexer_impl_addTrait ( pass, 0, node ); }
[e67991f]439 void indexerAddWith ( const std::list< Expression * > & exprs, const Declaration * withStmt ) { indexer_impl_addWith( pass, 0, exprs, withStmt ); }
[d8893ca]440
[e0886db]441
442 template< typename TreeType, typename VisitorType >
[e3d7f9f]443 friend inline void indexerScopedAccept( TreeType * tree, VisitorType & visitor );
[e0886db]444
445 template< typename TreeType, typename VisitorType >
[e3d7f9f]446 friend inline void indexerScopedAccept( const TreeType * tree, VisitorType & visitor );
447
448 template< typename TreeType, typename VisitorType >
449 friend inline void indexerScopedMutate( TreeType *& tree, VisitorType & visitor );
[13932f14]450};
451
[6e09f211]452template<typename pass_type, typename T>
453void GuardValue( pass_type * pass, T& val ) {
454 pass->at_cleanup( [ val ]( void * newVal ) {
455 * static_cast< T * >( newVal ) = val;
456 }, static_cast< void * >( & val ) );
457}
458
[637568b]459class WithTypeSubstitution {
460protected:
461 WithTypeSubstitution() = default;
462 ~WithTypeSubstitution() = default;
463
[4eb31f2b]464public:
[d24d4e1]465 TypeSubstitution * env = nullptr;
[637568b]466};
467
[02fdb8e]468class WithConstTypeSubstitution {
469protected:
470 WithConstTypeSubstitution() = default;
471 ~WithConstTypeSubstitution() = default;
472
473public:
474 const TypeSubstitution * env = nullptr;
475};
476
[637568b]477class WithStmtsToAdd {
478protected:
479 WithStmtsToAdd() = default;
480 ~WithStmtsToAdd() = default;
481
[4eb31f2b]482public:
[637568b]483 std::list< Statement* > stmtsToAddBefore;
484 std::list< Statement* > stmtsToAddAfter;
485};
[d24d4e1]486
487class WithDeclsToAdd {
488protected:
489 WithDeclsToAdd() = default;
[e0886db]490 ~WithDeclsToAdd() {
491 assert( declsToAddBefore.empty() );
492 }
[d24d4e1]493
494public:
495 std::list< Declaration* > declsToAddBefore;
496 std::list< Declaration* > declsToAddAfter;
497};
498
[637568b]499class WithShortCircuiting {
500protected:
501 WithShortCircuiting() = default;
502 ~WithShortCircuiting() = default;
503
[4eb31f2b]504public:
[b73bd70]505 bool_ref visit_children;
[637568b]506};
507
[d24d4e1]508class WithGuards {
[637568b]509protected:
[d24d4e1]510 WithGuards() = default;
511 ~WithGuards() = default;
[637568b]512
[4eb31f2b]513public:
[637568b]514 at_cleanup_t at_cleanup;
515
[4eb31f2b]516 template< typename T >
[637568b]517 void GuardValue( T& val ) {
518 at_cleanup( [ val ]( void * newVal ) {
519 * static_cast< T * >( newVal ) = val;
520 }, static_cast< void * >( & val ) );
521 }
[5dd0704]522
[d24d4e1]523 template< typename T >
524 void GuardScope( T& val ) {
525 val.beginScope();
526 at_cleanup( []( void * val ) {
527 static_cast< T * >( val )->endScope();
528 }, static_cast< void * >( & val ) );
529 }
530
[5dd0704]531 template< typename Func >
[d24d4e1]532 void GuardAction( Func func ) {
533 at_cleanup( [func](__attribute__((unused)) void *) { func(); }, nullptr );
[5dd0704]534 }
[637568b]535};
536
[b73bd70]537template<typename pass_type>
538class WithVisitorRef {
539protected:
[d24d4e1]540 WithVisitorRef() {}
541 ~WithVisitorRef() {}
[b73bd70]542
543public:
[d24d4e1]544 PassVisitor<pass_type> * const visitor = nullptr;
[53d55b6]545
546 bool isInFunction() const {
[c6c682cf]547 return visitor->isInFunction();
[53d55b6]548 }
[b73bd70]549};
[637568b]550
[e0886db]551class WithIndexer {
552protected:
[6e50a6b]553 WithIndexer( bool trackIdentifiers = true ) : indexer(trackIdentifiers) {}
[e0886db]554 ~WithIndexer() {}
555
556public:
557 SymTab::Indexer indexer;
558};
559
[675716e]560#include "Common/Stats.h"
561
562extern struct PassVisitorStats {
563 size_t depth = 0;
564 Stats::Counters::MaxCounter<double> * max = nullptr;
565 Stats::Counters::AverageCounter<double> * avg = nullptr;
566} pass_visitor_stats;
567
[07c178f0]568#include "SynTree/TypeSubstitution.h"
[aff3af4]569#include "PassVisitor.impl.h"
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