source: src/Common/PassVisitor.h@ 044ae62

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[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;
[561354f]71 virtual void visit( AdtDecl * aggregateDecl ) override final;
72 virtual void visit( const AdtDecl * AggregateDecl ) override final;
[5ea7a22]73 virtual void visit( TraitDecl * aggregateDecl ) override final;
[7870799]74 virtual void visit( const TraitDecl * aggregateDecl ) override final;
[5ea7a22]75 virtual void visit( TypeDecl * typeDecl ) override final;
[7870799]76 virtual void visit( const TypeDecl * typeDecl ) override final;
[5ea7a22]77 virtual void visit( TypedefDecl * typeDecl ) override final;
[7870799]78 virtual void visit( const TypedefDecl * typeDecl ) override final;
[5ea7a22]79 virtual void visit( AsmDecl * asmDecl ) override final;
[7870799]80 virtual void visit( const AsmDecl * asmDecl ) override final;
[2d019af]81 virtual void visit( DirectiveDecl * directiveDecl ) override final;
82 virtual void visit( const DirectiveDecl * directiveDecl ) override final;
[f6e3e34]83 virtual void visit( StaticAssertDecl * assertDecl ) override final;
[7870799]84 virtual void visit( const StaticAssertDecl * assertDecl ) override final;
[71806e0]85 virtual void visit( InlineMemberDecl * valueDecl ) override final;
86 virtual void visit( const InlineMemberDecl * valueDecl ) override final;
[5ea7a22]87
88 virtual void visit( CompoundStmt * compoundStmt ) override final;
[7870799]89 virtual void visit( const CompoundStmt * compoundStmt ) override final;
[5ea7a22]90 virtual void visit( ExprStmt * exprStmt ) override final;
[7870799]91 virtual void visit( const ExprStmt * exprStmt ) override final;
[5ea7a22]92 virtual void visit( AsmStmt * asmStmt ) override final;
[7870799]93 virtual void visit( const AsmStmt * asmStmt ) override final;
[cc32d83]94 virtual void visit( DirectiveStmt * dirStmt ) override final;
[7870799]95 virtual void visit( const DirectiveStmt * dirStmt ) override final;
[5ea7a22]96 virtual void visit( IfStmt * ifStmt ) override final;
[7870799]97 virtual void visit( const IfStmt * ifStmt ) override final;
[3b0bc16]98 virtual void visit( WhileDoStmt * whileDoStmt ) override final;
99 virtual void visit( const WhileDoStmt * whileDoStmt ) override final;
[5ea7a22]100 virtual void visit( ForStmt * forStmt ) override final;
[7870799]101 virtual void visit( const ForStmt * forStmt ) override final;
[5ea7a22]102 virtual void visit( SwitchStmt * switchStmt ) override final;
[7870799]103 virtual void visit( const SwitchStmt * switchStmt ) override final;
[5ea7a22]104 virtual void visit( CaseStmt * caseStmt ) override final;
[7870799]105 virtual void visit( const CaseStmt * caseStmt ) override final;
[5ea7a22]106 virtual void visit( BranchStmt * branchStmt ) override final;
[7870799]107 virtual void visit( const BranchStmt * branchStmt ) override final;
[5ea7a22]108 virtual void visit( ReturnStmt * returnStmt ) override final;
[7870799]109 virtual void visit( const ReturnStmt * returnStmt ) override final;
[5ea7a22]110 virtual void visit( ThrowStmt * throwStmt ) override final;
[7870799]111 virtual void visit( const ThrowStmt * throwStmt ) override final;
[5ea7a22]112 virtual void visit( TryStmt * tryStmt ) override final;
[7870799]113 virtual void visit( const TryStmt * tryStmt ) override final;
[5ea7a22]114 virtual void visit( CatchStmt * catchStmt ) override final;
[7870799]115 virtual void visit( const CatchStmt * catchStmt ) override final;
[5ea7a22]116 virtual void visit( FinallyStmt * finallyStmt ) override final;
[7870799]117 virtual void visit( const FinallyStmt * finallyStmt ) override final;
[37cdd97]118 virtual void visit( SuspendStmt * suspendStmt ) override final;
119 virtual void visit( const SuspendStmt * suspendStmt ) override final;
[5ea7a22]120 virtual void visit( WaitForStmt * waitforStmt ) override final;
[7870799]121 virtual void visit( const WaitForStmt * waitforStmt ) override final;
[61255ad]122 virtual void visit( WithStmt * withStmt ) override final;
[7870799]123 virtual void visit( const WithStmt * withStmt ) override final;
[5ea7a22]124 virtual void visit( NullStmt * nullStmt ) override final;
[7870799]125 virtual void visit( const NullStmt * nullStmt ) override final;
[5ea7a22]126 virtual void visit( DeclStmt * declStmt ) override final;
[7870799]127 virtual void visit( const DeclStmt * declStmt ) override final;
[5ea7a22]128 virtual void visit( ImplicitCtorDtorStmt * impCtorDtorStmt ) override final;
[7870799]129 virtual void visit( const ImplicitCtorDtorStmt * impCtorDtorStmt ) override final;
[6cebfef]130 virtual void visit( MutexStmt * mutexStmt ) override final;
131 virtual void visit( const MutexStmt * mutexStmt ) override final;
[5ea7a22]132
133 virtual void visit( ApplicationExpr * applicationExpr ) override final;
[7870799]134 virtual void visit( const ApplicationExpr * applicationExpr ) override final;
[5ea7a22]135 virtual void visit( UntypedExpr * untypedExpr ) override final;
[7870799]136 virtual void visit( const UntypedExpr * untypedExpr ) override final;
[5ea7a22]137 virtual void visit( NameExpr * nameExpr ) override final;
[7870799]138 virtual void visit( const NameExpr * nameExpr ) override final;
[b0d9ff7]139 virtual void visit ( QualifiedNameExpr * qualifiedNameExpr ) override final;
140 virtual void visit ( const QualifiedNameExpr * qualifiedNameExpr ) override final;
[5ea7a22]141 virtual void visit( CastExpr * castExpr ) override final;
[7870799]142 virtual void visit( const CastExpr * castExpr ) override final;
[9a705dc8]143 virtual void visit( KeywordCastExpr * castExpr ) override final;
[7870799]144 virtual void visit( const KeywordCastExpr * castExpr ) override final;
[5ea7a22]145 virtual void visit( VirtualCastExpr * castExpr ) override final;
[7870799]146 virtual void visit( const VirtualCastExpr * castExpr ) override final;
[5ea7a22]147 virtual void visit( AddressExpr * addressExpr ) override final;
[7870799]148 virtual void visit( const AddressExpr * addressExpr ) override final;
[5ea7a22]149 virtual void visit( LabelAddressExpr * labAddressExpr ) override final;
[7870799]150 virtual void visit( const LabelAddressExpr * labAddressExpr ) override final;
[5ea7a22]151 virtual void visit( UntypedMemberExpr * memberExpr ) override final;
[7870799]152 virtual void visit( const UntypedMemberExpr * memberExpr ) override final;
[5ea7a22]153 virtual void visit( MemberExpr * memberExpr ) override final;
[7870799]154 virtual void visit( const MemberExpr * memberExpr ) override final;
[5ea7a22]155 virtual void visit( VariableExpr * variableExpr ) override final;
[7870799]156 virtual void visit( const VariableExpr * variableExpr ) override final;
[5ea7a22]157 virtual void visit( ConstantExpr * constantExpr ) override final;
[7870799]158 virtual void visit( const ConstantExpr * constantExpr ) override final;
[5ea7a22]159 virtual void visit( SizeofExpr * sizeofExpr ) override final;
[7870799]160 virtual void visit( const SizeofExpr * sizeofExpr ) override final;
[5ea7a22]161 virtual void visit( AlignofExpr * alignofExpr ) override final;
[7870799]162 virtual void visit( const AlignofExpr * alignofExpr ) override final;
[5ea7a22]163 virtual void visit( UntypedOffsetofExpr * offsetofExpr ) override final;
[7870799]164 virtual void visit( const UntypedOffsetofExpr * offsetofExpr ) override final;
[5ea7a22]165 virtual void visit( OffsetofExpr * offsetofExpr ) override final;
[7870799]166 virtual void visit( const OffsetofExpr * offsetofExpr ) override final;
[5ea7a22]167 virtual void visit( OffsetPackExpr * offsetPackExpr ) override final;
[7870799]168 virtual void visit( const OffsetPackExpr * offsetPackExpr ) override final;
[5ea7a22]169 virtual void visit( LogicalExpr * logicalExpr ) override final;
[7870799]170 virtual void visit( const LogicalExpr * logicalExpr ) override final;
[5ea7a22]171 virtual void visit( ConditionalExpr * conditionalExpr ) override final;
[7870799]172 virtual void visit( const ConditionalExpr * conditionalExpr ) override final;
[5ea7a22]173 virtual void visit( CommaExpr * commaExpr ) override final;
[7870799]174 virtual void visit( const CommaExpr * commaExpr ) override final;
[5ea7a22]175 virtual void visit( TypeExpr * typeExpr ) override final;
[7870799]176 virtual void visit( const TypeExpr * typeExpr ) override final;
[6e50a6b]177 virtual void visit( DimensionExpr * dimensionExpr ) override final;
178 virtual void visit( const DimensionExpr * dimensionExpr ) override final;
[5ea7a22]179 virtual void visit( AsmExpr * asmExpr ) override final;
[7870799]180 virtual void visit( const AsmExpr * asmExpr ) override final;
[5ea7a22]181 virtual void visit( ImplicitCopyCtorExpr * impCpCtorExpr ) override final;
[7870799]182 virtual void visit( const ImplicitCopyCtorExpr * impCpCtorExpr ) override final;
[5ea7a22]183 virtual void visit( ConstructorExpr * ctorExpr ) override final;
[7870799]184 virtual void visit( const ConstructorExpr * ctorExpr ) override final;
[5ea7a22]185 virtual void visit( CompoundLiteralExpr * compLitExpr ) override final;
[7870799]186 virtual void visit( const CompoundLiteralExpr * compLitExpr ) override final;
[5ea7a22]187 virtual void visit( RangeExpr * rangeExpr ) override final;
[7870799]188 virtual void visit( const RangeExpr * rangeExpr ) override final;
[5ea7a22]189 virtual void visit( UntypedTupleExpr * tupleExpr ) override final;
[7870799]190 virtual void visit( const UntypedTupleExpr * tupleExpr ) override final;
[5ea7a22]191 virtual void visit( TupleExpr * tupleExpr ) override final;
[7870799]192 virtual void visit( const TupleExpr * tupleExpr ) override final;
[5ea7a22]193 virtual void visit( TupleIndexExpr * tupleExpr ) override final;
[7870799]194 virtual void visit( const TupleIndexExpr * tupleExpr ) override final;
[5ea7a22]195 virtual void visit( TupleAssignExpr * assignExpr ) override final;
[7870799]196 virtual void visit( const TupleAssignExpr * assignExpr ) override final;
[5ea7a22]197 virtual void visit( StmtExpr * stmtExpr ) override final;
[7870799]198 virtual void visit( const StmtExpr * stmtExpr ) override final;
[5ea7a22]199 virtual void visit( UniqueExpr * uniqueExpr ) override final;
[7870799]200 virtual void visit( const UniqueExpr * uniqueExpr ) override final;
[73367a8]201 virtual void visit( UntypedInitExpr * initExpr ) override final;
[7870799]202 virtual void visit( const UntypedInitExpr * initExpr ) override final;
[73367a8]203 virtual void visit( InitExpr * initExpr ) override final;
[7870799]204 virtual void visit( const InitExpr * initExpr ) override final;
[44b4114]205 virtual void visit( DeletedExpr * delExpr ) override final;
[7870799]206 virtual void visit( const DeletedExpr * delExpr ) override final;
[0f79853]207 virtual void visit( DefaultArgExpr * argExpr ) override final;
[7870799]208 virtual void visit( const DefaultArgExpr * argExpr ) override final;
[d807ca28]209 virtual void visit( GenericExpr * genExpr ) override final;
[7870799]210 virtual void visit( const GenericExpr * genExpr ) override final;
[5ea7a22]211
212 virtual void visit( VoidType * basicType ) override final;
[7870799]213 virtual void visit( const VoidType * basicType ) override final;
[5ea7a22]214 virtual void visit( BasicType * basicType ) override final;
[7870799]215 virtual void visit( const BasicType * basicType ) override final;
[5ea7a22]216 virtual void visit( PointerType * pointerType ) override final;
[7870799]217 virtual void visit( const PointerType * pointerType ) override final;
[5ea7a22]218 virtual void visit( ArrayType * arrayType ) override final;
[7870799]219 virtual void visit( const ArrayType * arrayType ) override final;
[5ea7a22]220 virtual void visit( ReferenceType * referenceType ) override final;
[7870799]221 virtual void visit( const ReferenceType * referenceType ) override final;
[c5d7701]222 virtual void visit( QualifiedType * qualType ) override final;
[7870799]223 virtual void visit( const QualifiedType * qualType ) override final;
[5ea7a22]224 virtual void visit( FunctionType * functionType ) override final;
[7870799]225 virtual void visit( const FunctionType * functionType ) override final;
[5ea7a22]226 virtual void visit( StructInstType * aggregateUseType ) override final;
[7870799]227 virtual void visit( const StructInstType * aggregateUseType ) override final;
[5ea7a22]228 virtual void visit( UnionInstType * aggregateUseType ) override final;
[7870799]229 virtual void visit( const UnionInstType * aggregateUseType ) override final;
[5ea7a22]230 virtual void visit( EnumInstType * aggregateUseType ) override final;
[7870799]231 virtual void visit( const EnumInstType * aggregateUseType ) override final;
[5ea7a22]232 virtual void visit( TraitInstType * aggregateUseType ) override final;
[7870799]233 virtual void visit( const TraitInstType * aggregateUseType ) override final;
[5ea7a22]234 virtual void visit( TypeInstType * aggregateUseType ) override final;
[7870799]235 virtual void visit( const TypeInstType * aggregateUseType ) override final;
[5ea7a22]236 virtual void visit( TupleType * tupleType ) override final;
[7870799]237 virtual void visit( const TupleType * tupleType ) override final;
[5ea7a22]238 virtual void visit( TypeofType * typeofType ) override final;
[7870799]239 virtual void visit( const TypeofType * typeofType ) override final;
[7ff35e0e]240 virtual void visit( VTableType * vtableType ) override final;
241 virtual void visit( const VTableType * vtableType ) override final;
[5ea7a22]242 virtual void visit( AttrType * attrType ) override final;
[7870799]243 virtual void visit( const AttrType * attrType ) override final;
[5ea7a22]244 virtual void visit( VarArgsType * varArgsType ) override final;
[7870799]245 virtual void visit( const VarArgsType * varArgsType ) override final;
[5ea7a22]246 virtual void visit( ZeroType * zeroType ) override final;
[7870799]247 virtual void visit( const ZeroType * zeroType ) override final;
[5ea7a22]248 virtual void visit( OneType * oneType ) override final;
[7870799]249 virtual void visit( const OneType * oneType ) override final;
[47498bd]250 virtual void visit( GlobalScopeType * globalType ) override final;
[7870799]251 virtual void visit( const GlobalScopeType * globalType ) override final;
[5ea7a22]252
253 virtual void visit( Designation * designation ) override final;
[7870799]254 virtual void visit( const Designation * designation ) override final;
[5ea7a22]255 virtual void visit( SingleInit * singleInit ) override final;
[7870799]256 virtual void visit( const SingleInit * singleInit ) override final;
[5ea7a22]257 virtual void visit( ListInit * listInit ) override final;
[7870799]258 virtual void visit( const ListInit * listInit ) override final;
[5ea7a22]259 virtual void visit( ConstructorInit * ctorInit ) override final;
[7870799]260 virtual void visit( const ConstructorInit * ctorInit ) override final;
[5ea7a22]261
262 virtual void visit( Constant * constant ) override final;
[7870799]263 virtual void visit( const Constant * constant ) override final;
[5ea7a22]264
265 virtual void visit( Attribute * attribute ) override final;
[7870799]266 virtual void visit( const Attribute * attribute ) override final;
[5ea7a22]267
268 virtual DeclarationWithType * mutate( ObjectDecl * objectDecl ) override final;
269 virtual DeclarationWithType * mutate( FunctionDecl * functionDecl ) override final;
270 virtual Declaration * mutate( StructDecl * aggregateDecl ) override final;
271 virtual Declaration * mutate( UnionDecl * aggregateDecl ) override final;
272 virtual Declaration * mutate( EnumDecl * aggregateDecl ) override final;
[561354f]273 virtual Declaration * mutate( AdtDecl * aggregateDecl ) override final;
[5ea7a22]274 virtual Declaration * mutate( TraitDecl * aggregateDecl ) override final;
275 virtual Declaration * mutate( TypeDecl * typeDecl ) override final;
276 virtual Declaration * mutate( TypedefDecl * typeDecl ) override final;
277 virtual AsmDecl * mutate( AsmDecl * asmDecl ) override final;
[2d019af]278 virtual DirectiveDecl * mutate( DirectiveDecl * directiveDecl ) override final;
[f6e3e34]279 virtual StaticAssertDecl * mutate( StaticAssertDecl * assertDecl ) override final;
[71806e0]280 virtual DeclarationWithType * mutate( InlineMemberDecl * valueDecl ) override final;
[5ea7a22]281
282 virtual CompoundStmt * mutate( CompoundStmt * compoundStmt ) override final;
283 virtual Statement * mutate( ExprStmt * exprStmt ) override final;
284 virtual Statement * mutate( AsmStmt * asmStmt ) override final;
[cc32d83]285 virtual Statement * mutate( DirectiveStmt * dirStmt ) override final;
[5ea7a22]286 virtual Statement * mutate( IfStmt * ifStmt ) override final;
[3b0bc16]287 virtual Statement * mutate( WhileDoStmt * whileDoStmt ) override final;
[5ea7a22]288 virtual Statement * mutate( ForStmt * forStmt ) override final;
289 virtual Statement * mutate( SwitchStmt * switchStmt ) override final;
290 virtual Statement * mutate( CaseStmt * caseStmt ) override final;
291 virtual Statement * mutate( BranchStmt * branchStmt ) override final;
292 virtual Statement * mutate( ReturnStmt * returnStmt ) override final;
293 virtual Statement * mutate( ThrowStmt * throwStmt ) override final;
294 virtual Statement * mutate( TryStmt * tryStmt ) override final;
295 virtual Statement * mutate( CatchStmt * catchStmt ) override final;
296 virtual Statement * mutate( FinallyStmt * finallyStmt ) override final;
[37cdd97]297 virtual Statement * mutate( SuspendStmt * suspendStmt ) override final;
[5ea7a22]298 virtual Statement * mutate( WaitForStmt * waitforStmt ) override final;
[e67991f]299 virtual Declaration * mutate( WithStmt * withStmt ) override final;
[5ea7a22]300 virtual NullStmt * mutate( NullStmt * nullStmt ) override final;
301 virtual Statement * mutate( DeclStmt * declStmt ) override final;
302 virtual Statement * mutate( ImplicitCtorDtorStmt * impCtorDtorStmt ) override final;
[6cebfef]303 virtual Statement * mutate( MutexStmt * mutexStmt ) override final;
[5ea7a22]304
305 virtual Expression * mutate( ApplicationExpr * applicationExpr ) override final;
306 virtual Expression * mutate( UntypedExpr * untypedExpr ) override final;
307 virtual Expression * mutate( NameExpr * nameExpr ) override final;
[9a705dc8]308 virtual Expression * mutate( AddressExpr * addrExpr ) override final;
[5ea7a22]309 virtual Expression * mutate( LabelAddressExpr * labAddressExpr ) override final;
310 virtual Expression * mutate( CastExpr * castExpr ) override final;
[9a705dc8]311 virtual Expression * mutate( KeywordCastExpr * castExpr ) override final;
[5ea7a22]312 virtual Expression * mutate( VirtualCastExpr * castExpr ) override final;
313 virtual Expression * mutate( UntypedMemberExpr * memberExpr ) override final;
314 virtual Expression * mutate( MemberExpr * memberExpr ) override final;
315 virtual Expression * mutate( VariableExpr * variableExpr ) override final;
316 virtual Expression * mutate( ConstantExpr * constantExpr ) override final;
317 virtual Expression * mutate( SizeofExpr * sizeofExpr ) override final;
318 virtual Expression * mutate( AlignofExpr * alignofExpr ) override final;
319 virtual Expression * mutate( UntypedOffsetofExpr * offsetofExpr ) override final;
320 virtual Expression * mutate( OffsetofExpr * offsetofExpr ) override final;
321 virtual Expression * mutate( OffsetPackExpr * offsetPackExpr ) override final;
322 virtual Expression * mutate( LogicalExpr * logicalExpr ) override final;
323 virtual Expression * mutate( ConditionalExpr * conditionalExpr ) override final;
324 virtual Expression * mutate( CommaExpr * commaExpr ) override final;
325 virtual Expression * mutate( TypeExpr * typeExpr ) override final;
[6e50a6b]326 virtual Expression * mutate( DimensionExpr * dimensionExpr ) override final;
[5ea7a22]327 virtual Expression * mutate( AsmExpr * asmExpr ) override final;
328 virtual Expression * mutate( ImplicitCopyCtorExpr * impCpCtorExpr ) override final;
329 virtual Expression * mutate( ConstructorExpr * ctorExpr ) override final;
330 virtual Expression * mutate( CompoundLiteralExpr * compLitExpr ) override final;
331 virtual Expression * mutate( RangeExpr * rangeExpr ) override final;
332 virtual Expression * mutate( UntypedTupleExpr * tupleExpr ) override final;
333 virtual Expression * mutate( TupleExpr * tupleExpr ) override final;
334 virtual Expression * mutate( TupleIndexExpr * tupleExpr ) override final;
[b0d9ff7]335 virtual Expression * mutate( TupleAssignExpr * assignExpr ) override final;
[5ea7a22]336 virtual Expression * mutate( StmtExpr * stmtExpr ) override final;
337 virtual Expression * mutate( UniqueExpr * uniqueExpr ) override final;
[73367a8]338 virtual Expression * mutate( UntypedInitExpr * initExpr ) override final;
339 virtual Expression * mutate( InitExpr * initExpr ) override final;
[44b4114]340 virtual Expression * mutate( DeletedExpr * delExpr ) override final;
[0f79853]341 virtual Expression * mutate( DefaultArgExpr * argExpr ) override final;
[d807ca28]342 virtual Expression * mutate( GenericExpr * genExpr ) override final;
[b0d9ff7]343 virtual Expression * mutate( QualifiedNameExpr * qualifiedNameExpr ) override final;
[5ea7a22]344
345 virtual Type * mutate( VoidType * basicType ) override final;
346 virtual Type * mutate( BasicType * basicType ) override final;
347 virtual Type * mutate( PointerType * pointerType ) override final;
348 virtual Type * mutate( ArrayType * arrayType ) override final;
349 virtual Type * mutate( ReferenceType * referenceType ) override final;
[c5d7701]350 virtual Type * mutate( QualifiedType * qualType ) override final;
[5ea7a22]351 virtual Type * mutate( FunctionType * functionType ) override final;
352 virtual Type * mutate( StructInstType * aggregateUseType ) override final;
353 virtual Type * mutate( UnionInstType * aggregateUseType ) override final;
354 virtual Type * mutate( EnumInstType * aggregateUseType ) override final;
355 virtual Type * mutate( TraitInstType * aggregateUseType ) override final;
356 virtual Type * mutate( TypeInstType * aggregateUseType ) override final;
357 virtual Type * mutate( TupleType * tupleType ) override final;
358 virtual Type * mutate( TypeofType * typeofType ) override final;
[7ff35e0e]359 virtual Type * mutate( VTableType * vtableType ) override final;
[5ea7a22]360 virtual Type * mutate( AttrType * attrType ) override final;
361 virtual Type * mutate( VarArgsType * varArgsType ) override final;
362 virtual Type * mutate( ZeroType * zeroType ) override final;
363 virtual Type * mutate( OneType * oneType ) override final;
[47498bd]364 virtual Type * mutate( GlobalScopeType * globalType ) override final;
[5ea7a22]365
366 virtual Designation * mutate( Designation * designation ) override final;
367 virtual Initializer * mutate( SingleInit * singleInit ) override final;
368 virtual Initializer * mutate( ListInit * listInit ) override final;
369 virtual Initializer * mutate( ConstructorInit * ctorInit ) override final;
370
371 virtual Constant * mutate( Constant * constant ) override final;
372
373 virtual Attribute * mutate( Attribute * attribute ) override final;
[447c356]374
375 virtual TypeSubstitution * mutate( TypeSubstitution * sub ) final;
[ab904dc]376
[53d55b6]377 bool isInFunction() const {
378 return inFunction;
379 }
380
[13932f14]381private:
[61d9b4b]382 bool inFunction = false;
[c6c682cf]383 bool atFunctionTop = false;
[61d9b4b]384
[6ca154b]385 template<typename pass_t> friend void acceptAll( std::list< Declaration* > &decls, PassVisitor< pass_t >& visitor );
[7870799]386 template<typename pass_t> friend void acceptAll( const std::list< const Declaration * > &decls, PassVisitor< pass_t >& visitor );
[6ca154b]387 template<typename pass_t> friend void mutateAll( std::list< Declaration* > &decls, PassVisitor< pass_t >& visitor );
[3c398b6]388 template< typename TreeType, typename pass_t > friend void maybeAccept_impl( TreeType * tree, PassVisitor< pass_t > & visitor );
[7870799]389 template< typename TreeType, typename pass_t > friend void maybeAccept_impl( const TreeType * tree, PassVisitor< pass_t > & visitor );
[3c398b6]390 template< typename TreeType, typename pass_t > friend void maybeMutate_impl( TreeType *& tree, PassVisitor< pass_t > & mutator );
391 template< typename Container, typename pass_t > friend void maybeAccept_impl( Container & container, PassVisitor< pass_t > & visitor );
[7870799]392 template< typename Container, typename pass_t > friend void maybeAccept_impl( const Container & container, PassVisitor< pass_t > & visitor );
[3c398b6]393 template< typename Container, typename pass_t > friend void maybeMutate_impl( Container & container, PassVisitor< pass_t > & mutator );
[6ca154b]394
[296b2be]395 template<typename node_type> void call_previsit ( node_type * node ) { previsit_impl ( pass, node, 0 ); }
[7870799]396 template<typename node_type> void call_previsit ( const node_type * node ) { previsit_impl ( pass, node, 0 ); }
[296b2be]397 template<typename node_type> void call_postvisit( node_type * node ) { postvisit_impl( pass, node, 0 ); }
[7870799]398 template<typename node_type> void call_postvisit( const node_type * node ) { postvisit_impl( pass, node, 0 ); }
[13932f14]399
[296b2be]400 template<typename node_type> void call_premutate ( node_type * node ) { premutate_impl( pass, node, 0 ); }
401 template<typename return_type, typename node_type> return_type call_postmutate ( node_type * node ) { return postmutate_impl<return_type>( pass, node, 0 ); }
[ab904dc]402
[296b2be]403 void call_beginScope() { begin_scope_impl( pass, 0 ); }
404 void call_endScope () { end_scope_impl ( pass, 0 ); }
405
[3fb9a83]406 void set_env( TypeSubstitution * env ) { set_env_impl( pass, env, 0); }
407
[6ca154b]408 template< typename func_t >
409 void handleStatementList( std::list< Statement * > & statements, func_t func );
410 void visitStatementList ( std::list< Statement* > &statements );
[296b2be]411 void mutateStatementList( std::list< Statement* > &statements );
[7870799]412 void visitStatementList ( const std::list< Statement * > & statements );
[134322e]413
[6ca154b]414 template< typename func_t >
415 Statement * handleStatement( Statement * stmt, func_t func );
416 Statement * visitStatement ( Statement * stmt );
[296b2be]417 Statement * mutateStatement( Statement * stmt );
[7870799]418 void visitStatement ( const Statement * stmt );
[134322e]419
[6ca154b]420 template< typename func_t >
421 Expression * handleExpression( Expression * expr, func_t func );
422 Expression * visitExpression ( Expression * expr );
[296b2be]423 Expression * mutateExpression( Expression * expr );
[7870799]424 void visitExpression ( const Expression * expr );
[296b2be]425
[ab904dc]426
[02fdb8e]427 auto get_env_ptr () -> decltype(env_impl( pass, 0)) { return env_impl( pass, 0); }
[134322e]428 std::list< Statement* > * get_beforeStmts() { return stmtsToAddBefore_impl( pass, 0); }
429 std::list< Statement* > * get_afterStmts () { return stmtsToAddAfter_impl ( pass, 0); }
[35df560]430 std::list< Declaration* > * get_beforeDecls() { return declsToAddBefore_impl( pass, 0); }
431 std::list< Declaration* > * get_afterDecls () { return declsToAddAfter_impl ( pass, 0); }
[b73bd70]432
[3c398b6]433 bool get_visit_children () { bool_ref * ptr = visit_children_impl(pass, 0); return ptr ? *ptr : true; }
434 bool_ref * get_visit_children_ptr() { return visit_children_impl(pass, 0); }
[e0886db]435
[4670c79]436 void indexerScopeEnter () { indexer_impl_enterScope ( pass, 0 ); }
437 void indexerScopeLeave () { indexer_impl_leaveScope ( pass, 0 ); }
[e3d7f9f]438 void indexerAddId ( const DeclarationWithType * node ) { indexer_impl_addId ( pass, 0, node ); }
439 void indexerAddType ( const NamedTypeDecl * node ) { indexer_impl_addType ( pass, 0, node ); }
[4670c79]440 void indexerAddStruct ( const std::string & id ) { indexer_impl_addStruct ( pass, 0, id ); }
[e3d7f9f]441 void indexerAddStruct ( const StructDecl * node ) { indexer_impl_addStruct ( pass, 0, node ); }
442 void indexerAddStructFwd( const StructDecl * node ) { indexer_impl_addStructFwd( pass, 0, node ); }
443 void indexerAddEnum ( const EnumDecl * node ) { indexer_impl_addEnum ( pass, 0, node ); }
[561354f]444 void indexerAddAdt ( const AdtDecl * node ) { indexer_impl_addAdt ( pass, 0, node ); }
[f4e01f1]445 void indexerAddAdtFwd ( const AdtDecl * node ) { indexer_impl_addAdtFwd ( pass, 0, node ); }
[4670c79]446 void indexerAddUnion ( const std::string & id ) { indexer_impl_addUnion ( pass, 0, id ); }
[e3d7f9f]447 void indexerAddUnion ( const UnionDecl * node ) { indexer_impl_addUnion ( pass, 0, node ); }
448 void indexerAddUnionFwd ( const UnionDecl * node ) { indexer_impl_addUnionFwd ( pass, 0, node ); }
449 void indexerAddTrait ( const TraitDecl * node ) { indexer_impl_addTrait ( pass, 0, node ); }
[e67991f]450 void indexerAddWith ( const std::list< Expression * > & exprs, const Declaration * withStmt ) { indexer_impl_addWith( pass, 0, exprs, withStmt ); }
[d8893ca]451
[e0886db]452
453 template< typename TreeType, typename VisitorType >
[e3d7f9f]454 friend inline void indexerScopedAccept( TreeType * tree, VisitorType & visitor );
[e0886db]455
456 template< typename TreeType, typename VisitorType >
[e3d7f9f]457 friend inline void indexerScopedAccept( const TreeType * tree, VisitorType & visitor );
458
459 template< typename TreeType, typename VisitorType >
460 friend inline void indexerScopedMutate( TreeType *& tree, VisitorType & visitor );
[13932f14]461};
462
[6e09f211]463template<typename pass_type, typename T>
464void GuardValue( pass_type * pass, T& val ) {
465 pass->at_cleanup( [ val ]( void * newVal ) {
466 * static_cast< T * >( newVal ) = val;
467 }, static_cast< void * >( & val ) );
468}
469
[637568b]470class WithTypeSubstitution {
471protected:
472 WithTypeSubstitution() = default;
473 ~WithTypeSubstitution() = default;
474
[4eb31f2b]475public:
[d24d4e1]476 TypeSubstitution * env = nullptr;
[637568b]477};
478
[02fdb8e]479class WithConstTypeSubstitution {
480protected:
481 WithConstTypeSubstitution() = default;
482 ~WithConstTypeSubstitution() = default;
483
484public:
485 const TypeSubstitution * env = nullptr;
486};
487
[637568b]488class WithStmtsToAdd {
489protected:
490 WithStmtsToAdd() = default;
491 ~WithStmtsToAdd() = default;
492
[4eb31f2b]493public:
[637568b]494 std::list< Statement* > stmtsToAddBefore;
495 std::list< Statement* > stmtsToAddAfter;
496};
[d24d4e1]497
498class WithDeclsToAdd {
499protected:
500 WithDeclsToAdd() = default;
[e0886db]501 ~WithDeclsToAdd() {
502 assert( declsToAddBefore.empty() );
503 }
[d24d4e1]504
505public:
506 std::list< Declaration* > declsToAddBefore;
507 std::list< Declaration* > declsToAddAfter;
508};
509
[637568b]510class WithShortCircuiting {
511protected:
512 WithShortCircuiting() = default;
513 ~WithShortCircuiting() = default;
514
[4eb31f2b]515public:
[b73bd70]516 bool_ref visit_children;
[637568b]517};
518
[d24d4e1]519class WithGuards {
[637568b]520protected:
[d24d4e1]521 WithGuards() = default;
522 ~WithGuards() = default;
[637568b]523
[4eb31f2b]524public:
[637568b]525 at_cleanup_t at_cleanup;
526
[4eb31f2b]527 template< typename T >
[637568b]528 void GuardValue( T& val ) {
529 at_cleanup( [ val ]( void * newVal ) {
530 * static_cast< T * >( newVal ) = val;
531 }, static_cast< void * >( & val ) );
532 }
[5dd0704]533
[d24d4e1]534 template< typename T >
535 void GuardScope( T& val ) {
536 val.beginScope();
537 at_cleanup( []( void * val ) {
538 static_cast< T * >( val )->endScope();
539 }, static_cast< void * >( & val ) );
540 }
541
[5dd0704]542 template< typename Func >
[d24d4e1]543 void GuardAction( Func func ) {
544 at_cleanup( [func](__attribute__((unused)) void *) { func(); }, nullptr );
[5dd0704]545 }
[637568b]546};
547
[b73bd70]548template<typename pass_type>
549class WithVisitorRef {
550protected:
[d24d4e1]551 WithVisitorRef() {}
552 ~WithVisitorRef() {}
[b73bd70]553
554public:
[d24d4e1]555 PassVisitor<pass_type> * const visitor = nullptr;
[53d55b6]556
557 bool isInFunction() const {
[c6c682cf]558 return visitor->isInFunction();
[53d55b6]559 }
[b73bd70]560};
[637568b]561
[e0886db]562class WithIndexer {
563protected:
[6e50a6b]564 WithIndexer( bool trackIdentifiers = true ) : indexer(trackIdentifiers) {}
[e0886db]565 ~WithIndexer() {}
566
567public:
568 SymTab::Indexer indexer;
569};
570
[675716e]571#include "Common/Stats.h"
572
573extern struct PassVisitorStats {
574 size_t depth = 0;
575 Stats::Counters::MaxCounter<double> * max = nullptr;
576 Stats::Counters::AverageCounter<double> * avg = nullptr;
577} pass_visitor_stats;
578
[07c178f0]579#include "SynTree/TypeSubstitution.h"
[aff3af4]580#include "PassVisitor.impl.h"
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