[13932f14] | 1 | #pragma once |
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| 2 | |
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[296b2be] | 3 | #include <stack> |
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| 4 | |
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[ab904dc] | 5 | #include "SynTree/Mutator.h" |
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[13932f14] | 6 | #include "SynTree/Visitor.h" |
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| 7 | |
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[ab904dc] | 8 | #include "SynTree/Initializer.h" |
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| 9 | #include "SynTree/Statement.h" |
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| 10 | #include "SynTree/Type.h" |
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| 11 | #include "SynTree/Declaration.h" |
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| 12 | #include "SynTree/Expression.h" |
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| 13 | #include "SynTree/Constant.h" |
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[2a7b3ca] | 14 | #include "SynTree/TypeSubstitution.h" |
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[ab904dc] | 15 | |
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[296b2be] | 16 | #include "PassVisitor.proto.h" |
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[ab904dc] | 17 | |
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[13932f14] | 18 | //------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
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[5d88a0a] | 19 | // Templated visitor type |
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| 20 | // To use declare a PassVisitor< YOUR VISITOR TYPE > |
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[5e298d7] | 21 | // The visitor type should specify the previsit/postvisit/premutate/postmutate for types that are desired. |
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[4551a6e] | 22 | // Note: previsit/postvisit/premutate/postmutate must be **public** members |
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[5e298d7] | 23 | // |
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| 24 | // Several additional features are available through inheritance |
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| 25 | // | WithTypeSubstitution - provides polymorphic TypeSubstitution * env for the current expression |
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| 26 | // | WithStmtsToAdd - provides the ability to insert statements before or after the current statement by adding new statements into |
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| 27 | // stmtsToAddBefore or stmtsToAddAfter respectively. |
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[6ca154b] | 28 | // | WithShortCircuiting - provides the ability to skip visiting child nodes; set visit_children to false in pre{visit,mutate} to skip visiting children |
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[d24d4e1] | 29 | // | WithGuards - provides the ability to save/restore data like a LIFO stack; to save, call GuardValue with the variable to save, the variable |
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[5e298d7] | 30 | // will automatically be restored to its previous value after the corresponding postvisit/postmutate teminates. |
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[13932f14] | 31 | //------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
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| 32 | template< typename pass_type > |
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[ab904dc] | 33 | class PassVisitor final : public Visitor, public Mutator { |
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[13932f14] | 34 | public: |
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| 35 | |
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| 36 | template< typename... Args > |
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[aff3af4] | 37 | PassVisitor(Args &&... args) |
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[13932f14] | 38 | : pass( std::forward<Args>( args )... ) |
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[b73bd70] | 39 | { |
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| 40 | typedef PassVisitor<pass_type> this_t; |
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| 41 | this_t * const * visitor = visitor_impl(pass, 0); |
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| 42 | if(visitor) { |
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| 43 | *const_cast<this_t **>( visitor ) = this; |
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| 44 | } |
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| 45 | } |
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[13932f14] | 46 | |
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| 47 | virtual ~PassVisitor() = default; |
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| 48 | |
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[aff3af4] | 49 | pass_type pass; |
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[13932f14] | 50 | |
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| 51 | virtual void visit( ObjectDecl *objectDecl ) override final; |
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| 52 | virtual void visit( FunctionDecl *functionDecl ) override final; |
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| 53 | virtual void visit( StructDecl *aggregateDecl ) override final; |
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| 54 | virtual void visit( UnionDecl *aggregateDecl ) override final; |
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| 55 | virtual void visit( EnumDecl *aggregateDecl ) override final; |
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| 56 | virtual void visit( TraitDecl *aggregateDecl ) override final; |
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| 57 | virtual void visit( TypeDecl *typeDecl ) override final; |
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| 58 | virtual void visit( TypedefDecl *typeDecl ) override final; |
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| 59 | virtual void visit( AsmDecl *asmDecl ) override final; |
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| 60 | |
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| 61 | virtual void visit( CompoundStmt *compoundStmt ) override final; |
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| 62 | virtual void visit( ExprStmt *exprStmt ) override final; |
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| 63 | virtual void visit( AsmStmt *asmStmt ) override final; |
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| 64 | virtual void visit( IfStmt *ifStmt ) override final; |
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| 65 | virtual void visit( WhileStmt *whileStmt ) override final; |
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| 66 | virtual void visit( ForStmt *forStmt ) override final; |
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| 67 | virtual void visit( SwitchStmt *switchStmt ) override final; |
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| 68 | virtual void visit( CaseStmt *caseStmt ) override final; |
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| 69 | virtual void visit( BranchStmt *branchStmt ) override final; |
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| 70 | virtual void visit( ReturnStmt *returnStmt ) override final; |
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[6e09f211] | 71 | virtual void visit( ThrowStmt *throwStmt ) override final; |
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[13932f14] | 72 | virtual void visit( TryStmt *tryStmt ) override final; |
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| 73 | virtual void visit( CatchStmt *catchStmt ) override final; |
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| 74 | virtual void visit( FinallyStmt *finallyStmt ) override final; |
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| 75 | virtual void visit( NullStmt *nullStmt ) override final; |
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| 76 | virtual void visit( DeclStmt *declStmt ) override final; |
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| 77 | virtual void visit( ImplicitCtorDtorStmt *impCtorDtorStmt ) override final; |
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| 78 | |
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| 79 | virtual void visit( ApplicationExpr *applicationExpr ) override final; |
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| 80 | virtual void visit( UntypedExpr *untypedExpr ) override final; |
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| 81 | virtual void visit( NameExpr *nameExpr ) override final; |
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| 82 | virtual void visit( CastExpr *castExpr ) override final; |
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[a5f0529] | 83 | virtual void visit( VirtualCastExpr *castExpr ) override final; |
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[13932f14] | 84 | virtual void visit( AddressExpr *addressExpr ) override final; |
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| 85 | virtual void visit( LabelAddressExpr *labAddressExpr ) override final; |
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| 86 | virtual void visit( UntypedMemberExpr *memberExpr ) override final; |
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| 87 | virtual void visit( MemberExpr *memberExpr ) override final; |
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| 88 | virtual void visit( VariableExpr *variableExpr ) override final; |
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| 89 | virtual void visit( ConstantExpr *constantExpr ) override final; |
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| 90 | virtual void visit( SizeofExpr *sizeofExpr ) override final; |
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| 91 | virtual void visit( AlignofExpr *alignofExpr ) override final; |
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| 92 | virtual void visit( UntypedOffsetofExpr *offsetofExpr ) override final; |
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| 93 | virtual void visit( OffsetofExpr *offsetofExpr ) override final; |
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| 94 | virtual void visit( OffsetPackExpr *offsetPackExpr ) override final; |
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| 95 | virtual void visit( AttrExpr *attrExpr ) override final; |
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| 96 | virtual void visit( LogicalExpr *logicalExpr ) override final; |
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| 97 | virtual void visit( ConditionalExpr *conditionalExpr ) override final; |
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| 98 | virtual void visit( CommaExpr *commaExpr ) override final; |
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| 99 | virtual void visit( TypeExpr *typeExpr ) override final; |
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| 100 | virtual void visit( AsmExpr *asmExpr ) override final; |
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| 101 | virtual void visit( ImplicitCopyCtorExpr *impCpCtorExpr ) override final; |
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| 102 | virtual void visit( ConstructorExpr * ctorExpr ) override final; |
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| 103 | virtual void visit( CompoundLiteralExpr *compLitExpr ) override final; |
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| 104 | virtual void visit( RangeExpr *rangeExpr ) override final; |
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| 105 | virtual void visit( UntypedTupleExpr *tupleExpr ) override final; |
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| 106 | virtual void visit( TupleExpr *tupleExpr ) override final; |
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| 107 | virtual void visit( TupleIndexExpr *tupleExpr ) override final; |
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| 108 | virtual void visit( TupleAssignExpr *assignExpr ) override final; |
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| 109 | virtual void visit( StmtExpr * stmtExpr ) override final; |
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| 110 | virtual void visit( UniqueExpr * uniqueExpr ) override final; |
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| 111 | |
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| 112 | virtual void visit( VoidType *basicType ) override final; |
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| 113 | virtual void visit( BasicType *basicType ) override final; |
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| 114 | virtual void visit( PointerType *pointerType ) override final; |
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| 115 | virtual void visit( ArrayType *arrayType ) override final; |
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| 116 | virtual void visit( FunctionType *functionType ) override final; |
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| 117 | virtual void visit( StructInstType *aggregateUseType ) override final; |
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| 118 | virtual void visit( UnionInstType *aggregateUseType ) override final; |
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| 119 | virtual void visit( EnumInstType *aggregateUseType ) override final; |
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| 120 | virtual void visit( TraitInstType *aggregateUseType ) override final; |
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| 121 | virtual void visit( TypeInstType *aggregateUseType ) override final; |
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| 122 | virtual void visit( TupleType *tupleType ) override final; |
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| 123 | virtual void visit( TypeofType *typeofType ) override final; |
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| 124 | virtual void visit( AttrType *attrType ) override final; |
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| 125 | virtual void visit( VarArgsType *varArgsType ) override final; |
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| 126 | virtual void visit( ZeroType *zeroType ) override final; |
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| 127 | virtual void visit( OneType *oneType ) override final; |
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| 128 | |
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| 129 | virtual void visit( SingleInit *singleInit ) override final; |
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| 130 | virtual void visit( ListInit *listInit ) override final; |
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| 131 | virtual void visit( ConstructorInit *ctorInit ) override final; |
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| 132 | |
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| 133 | virtual void visit( Subrange *subrange ) override final; |
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| 134 | |
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| 135 | virtual void visit( Constant *constant ) override final; |
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| 136 | |
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[ab904dc] | 137 | virtual DeclarationWithType* mutate( ObjectDecl *objectDecl ) override final; |
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| 138 | virtual DeclarationWithType* mutate( FunctionDecl *functionDecl ) override final; |
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| 139 | virtual Declaration* mutate( StructDecl *aggregateDecl ) override final; |
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| 140 | virtual Declaration* mutate( UnionDecl *aggregateDecl ) override final; |
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| 141 | virtual Declaration* mutate( EnumDecl *aggregateDecl ) override final; |
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| 142 | virtual Declaration* mutate( TraitDecl *aggregateDecl ) override final; |
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| 143 | virtual TypeDecl* mutate( TypeDecl *typeDecl ) override final; |
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| 144 | virtual Declaration* mutate( TypedefDecl *typeDecl ) override final; |
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| 145 | virtual AsmDecl* mutate( AsmDecl *asmDecl ) override final; |
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| 146 | |
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| 147 | virtual CompoundStmt* mutate( CompoundStmt *compoundStmt ) override final; |
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| 148 | virtual Statement* mutate( ExprStmt *exprStmt ) override final; |
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| 149 | virtual Statement* mutate( AsmStmt *asmStmt ) override final; |
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| 150 | virtual Statement* mutate( IfStmt *ifStmt ) override final; |
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| 151 | virtual Statement* mutate( WhileStmt *whileStmt ) override final; |
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| 152 | virtual Statement* mutate( ForStmt *forStmt ) override final; |
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| 153 | virtual Statement* mutate( SwitchStmt *switchStmt ) override final; |
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| 154 | virtual Statement* mutate( CaseStmt *caseStmt ) override final; |
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| 155 | virtual Statement* mutate( BranchStmt *branchStmt ) override final; |
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| 156 | virtual Statement* mutate( ReturnStmt *returnStmt ) override final; |
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[6e09f211] | 157 | virtual Statement* mutate( ThrowStmt *throwStmt ) override final; |
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[ab904dc] | 158 | virtual Statement* mutate( TryStmt *returnStmt ) override final; |
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| 159 | virtual Statement* mutate( CatchStmt *catchStmt ) override final; |
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| 160 | virtual Statement* mutate( FinallyStmt *catchStmt ) override final; |
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| 161 | virtual NullStmt* mutate( NullStmt *nullStmt ) override final; |
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| 162 | virtual Statement* mutate( DeclStmt *declStmt ) override final; |
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| 163 | virtual Statement* mutate( ImplicitCtorDtorStmt *impCtorDtorStmt ) override final; |
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| 164 | |
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| 165 | virtual Expression* mutate( ApplicationExpr *applicationExpr ) override final; |
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| 166 | virtual Expression* mutate( UntypedExpr *untypedExpr ) override final; |
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| 167 | virtual Expression* mutate( NameExpr *nameExpr ) override final; |
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| 168 | virtual Expression* mutate( AddressExpr *castExpr ) override final; |
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| 169 | virtual Expression* mutate( LabelAddressExpr *labAddressExpr ) override final; |
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| 170 | virtual Expression* mutate( CastExpr *castExpr ) override final; |
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[a5f0529] | 171 | virtual Expression* mutate( VirtualCastExpr *castExpr ) override final; |
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[ab904dc] | 172 | virtual Expression* mutate( UntypedMemberExpr *memberExpr ) override final; |
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| 173 | virtual Expression* mutate( MemberExpr *memberExpr ) override final; |
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| 174 | virtual Expression* mutate( VariableExpr *variableExpr ) override final; |
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| 175 | virtual Expression* mutate( ConstantExpr *constantExpr ) override final; |
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| 176 | virtual Expression* mutate( SizeofExpr *sizeofExpr ) override final; |
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| 177 | virtual Expression* mutate( AlignofExpr *alignofExpr ) override final; |
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| 178 | virtual Expression* mutate( UntypedOffsetofExpr *offsetofExpr ) override final; |
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| 179 | virtual Expression* mutate( OffsetofExpr *offsetofExpr ) override final; |
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| 180 | virtual Expression* mutate( OffsetPackExpr *offsetPackExpr ) override final; |
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| 181 | virtual Expression* mutate( AttrExpr *attrExpr ) override final; |
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| 182 | virtual Expression* mutate( LogicalExpr *logicalExpr ) override final; |
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| 183 | virtual Expression* mutate( ConditionalExpr *conditionalExpr ) override final; |
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| 184 | virtual Expression* mutate( CommaExpr *commaExpr ) override final; |
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| 185 | virtual Expression* mutate( TypeExpr *typeExpr ) override final; |
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| 186 | virtual Expression* mutate( AsmExpr *asmExpr ) override final; |
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| 187 | virtual Expression* mutate( ImplicitCopyCtorExpr *impCpCtorExpr ) override final; |
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| 188 | virtual Expression* mutate( ConstructorExpr *ctorExpr ) override final; |
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| 189 | virtual Expression* mutate( CompoundLiteralExpr *compLitExpr ) override final; |
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| 190 | virtual Expression* mutate( RangeExpr *rangeExpr ) override final; |
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| 191 | virtual Expression* mutate( UntypedTupleExpr *tupleExpr ) override final; |
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| 192 | virtual Expression* mutate( TupleExpr *tupleExpr ) override final; |
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| 193 | virtual Expression* mutate( TupleIndexExpr *tupleExpr ) override final; |
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| 194 | virtual Expression* mutate( TupleAssignExpr *assignExpr ) override final; |
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| 195 | virtual Expression* mutate( StmtExpr * stmtExpr ) override final; |
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| 196 | virtual Expression* mutate( UniqueExpr * uniqueExpr ) override final; |
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| 197 | |
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| 198 | virtual Type* mutate( VoidType *basicType ) override final; |
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| 199 | virtual Type* mutate( BasicType *basicType ) override final; |
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| 200 | virtual Type* mutate( PointerType *pointerType ) override final; |
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| 201 | virtual Type* mutate( ArrayType *arrayType ) override final; |
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| 202 | virtual Type* mutate( FunctionType *functionType ) override final; |
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| 203 | virtual Type* mutate( StructInstType *aggregateUseType ) override final; |
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| 204 | virtual Type* mutate( UnionInstType *aggregateUseType ) override final; |
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| 205 | virtual Type* mutate( EnumInstType *aggregateUseType ) override final; |
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| 206 | virtual Type* mutate( TraitInstType *aggregateUseType ) override final; |
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| 207 | virtual Type* mutate( TypeInstType *aggregateUseType ) override final; |
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| 208 | virtual Type* mutate( TupleType *tupleType ) override final; |
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| 209 | virtual Type* mutate( TypeofType *typeofType ) override final; |
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| 210 | virtual Type* mutate( AttrType *attrType ) override final; |
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| 211 | virtual Type* mutate( VarArgsType *varArgsType ) override final; |
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| 212 | virtual Type* mutate( ZeroType *zeroType ) override final; |
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| 213 | virtual Type* mutate( OneType *oneType ) override final; |
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| 214 | |
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| 215 | virtual Initializer* mutate( SingleInit *singleInit ) override final; |
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| 216 | virtual Initializer* mutate( ListInit *listInit ) override final; |
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| 217 | virtual Initializer* mutate( ConstructorInit *ctorInit ) override final; |
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| 218 | |
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| 219 | virtual Subrange *mutate( Subrange *subrange ) override final; |
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| 220 | |
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| 221 | virtual Constant *mutate( Constant *constant ) override final; |
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| 222 | |
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[13932f14] | 223 | private: |
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[6ca154b] | 224 | template<typename pass_t> friend void acceptAll( std::list< Declaration* > &decls, PassVisitor< pass_t >& visitor ); |
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| 225 | template<typename pass_t> friend void mutateAll( std::list< Declaration* > &decls, PassVisitor< pass_t >& visitor ); |
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| 226 | |
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[296b2be] | 227 | template<typename node_type> void call_previsit ( node_type * node ) { previsit_impl ( pass, node, 0 ); } |
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| 228 | template<typename node_type> void call_postvisit( node_type * node ) { postvisit_impl( pass, node, 0 ); } |
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[13932f14] | 229 | |
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[296b2be] | 230 | template<typename node_type> void call_premutate ( node_type * node ) { premutate_impl( pass, node, 0 ); } |
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| 231 | template<typename return_type, typename node_type> return_type call_postmutate ( node_type * node ) { return postmutate_impl<return_type>( pass, node, 0 ); } |
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[ab904dc] | 232 | |
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[296b2be] | 233 | void call_beginScope() { begin_scope_impl( pass, 0 ); } |
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| 234 | void call_endScope () { end_scope_impl ( pass, 0 ); } |
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| 235 | |
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[3fb9a83] | 236 | void set_env( TypeSubstitution * env ) { set_env_impl( pass, env, 0); } |
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| 237 | |
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[6ca154b] | 238 | template< typename func_t > |
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| 239 | void handleStatementList( std::list< Statement * > & statements, func_t func ); |
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| 240 | void visitStatementList ( std::list< Statement* > &statements ); |
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[296b2be] | 241 | void mutateStatementList( std::list< Statement* > &statements ); |
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[134322e] | 242 | |
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[6ca154b] | 243 | template< typename func_t > |
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| 244 | Statement * handleStatement( Statement * stmt, func_t func ); |
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| 245 | Statement * visitStatement ( Statement * stmt ); |
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[296b2be] | 246 | Statement * mutateStatement( Statement * stmt ); |
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[134322e] | 247 | |
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[6ca154b] | 248 | template< typename func_t > |
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| 249 | Expression * handleExpression( Expression * expr, func_t func ); |
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| 250 | Expression * visitExpression ( Expression * expr ); |
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[296b2be] | 251 | Expression * mutateExpression( Expression * expr ); |
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| 252 | |
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[ab904dc] | 253 | |
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[134322e] | 254 | TypeSubstitution ** get_env_ptr () { return env_impl ( pass, 0); } |
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| 255 | std::list< Statement* > * get_beforeStmts() { return stmtsToAddBefore_impl( pass, 0); } |
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| 256 | std::list< Statement* > * get_afterStmts () { return stmtsToAddAfter_impl ( pass, 0); } |
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[35df560] | 257 | std::list< Declaration* > * get_beforeDecls() { return declsToAddBefore_impl( pass, 0); } |
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| 258 | std::list< Declaration* > * get_afterDecls () { return declsToAddAfter_impl ( pass, 0); } |
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[b73bd70] | 259 | |
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| 260 | void set_visit_children( bool& ref ) { bool_ref * ptr = visit_children_impl(pass, 0); if(ptr) ptr->set( ref ); } |
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[13932f14] | 261 | }; |
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| 262 | |
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[6e09f211] | 263 | template<typename pass_type, typename T> |
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| 264 | void GuardValue( pass_type * pass, T& val ) { |
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| 265 | pass->at_cleanup( [ val ]( void * newVal ) { |
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| 266 | * static_cast< T * >( newVal ) = val; |
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| 267 | }, static_cast< void * >( & val ) ); |
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| 268 | } |
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| 269 | |
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[637568b] | 270 | class WithTypeSubstitution { |
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| 271 | protected: |
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| 272 | WithTypeSubstitution() = default; |
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| 273 | ~WithTypeSubstitution() = default; |
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| 274 | |
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[4eb31f2b] | 275 | public: |
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[d24d4e1] | 276 | TypeSubstitution * env = nullptr; |
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[637568b] | 277 | }; |
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| 278 | |
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| 279 | class WithStmtsToAdd { |
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| 280 | protected: |
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| 281 | WithStmtsToAdd() = default; |
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| 282 | ~WithStmtsToAdd() = default; |
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| 283 | |
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[4eb31f2b] | 284 | public: |
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[637568b] | 285 | std::list< Statement* > stmtsToAddBefore; |
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| 286 | std::list< Statement* > stmtsToAddAfter; |
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| 287 | }; |
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[d24d4e1] | 288 | |
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| 289 | class WithDeclsToAdd { |
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| 290 | protected: |
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| 291 | WithDeclsToAdd() = default; |
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| 292 | ~WithDeclsToAdd() = default; |
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| 293 | |
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| 294 | public: |
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| 295 | std::list< Declaration* > declsToAddBefore; |
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| 296 | std::list< Declaration* > declsToAddAfter; |
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| 297 | }; |
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| 298 | |
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[637568b] | 299 | class WithShortCircuiting { |
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| 300 | protected: |
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| 301 | WithShortCircuiting() = default; |
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| 302 | ~WithShortCircuiting() = default; |
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| 303 | |
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[4eb31f2b] | 304 | public: |
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[b73bd70] | 305 | bool_ref visit_children; |
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[637568b] | 306 | }; |
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| 307 | |
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[d24d4e1] | 308 | class WithGuards { |
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[637568b] | 309 | protected: |
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[d24d4e1] | 310 | WithGuards() = default; |
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| 311 | ~WithGuards() = default; |
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[637568b] | 312 | |
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[4eb31f2b] | 313 | public: |
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[637568b] | 314 | at_cleanup_t at_cleanup; |
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| 315 | |
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[4eb31f2b] | 316 | template< typename T > |
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[637568b] | 317 | void GuardValue( T& val ) { |
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| 318 | at_cleanup( [ val ]( void * newVal ) { |
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| 319 | * static_cast< T * >( newVal ) = val; |
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| 320 | }, static_cast< void * >( & val ) ); |
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| 321 | } |
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[5dd0704] | 322 | |
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[d24d4e1] | 323 | template< typename T > |
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| 324 | void GuardScope( T& val ) { |
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| 325 | val.beginScope(); |
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| 326 | at_cleanup( []( void * val ) { |
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| 327 | static_cast< T * >( val )->endScope(); |
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| 328 | }, static_cast< void * >( & val ) ); |
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| 329 | } |
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| 330 | |
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[5dd0704] | 331 | template< typename Func > |
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[d24d4e1] | 332 | void GuardAction( Func func ) { |
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| 333 | at_cleanup( [func](__attribute__((unused)) void *) { func(); }, nullptr ); |
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[5dd0704] | 334 | } |
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[637568b] | 335 | }; |
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| 336 | |
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[b73bd70] | 337 | template<typename pass_type> |
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| 338 | class WithVisitorRef { |
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| 339 | protected: |
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[d24d4e1] | 340 | WithVisitorRef() {} |
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| 341 | ~WithVisitorRef() {} |
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[b73bd70] | 342 | |
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| 343 | public: |
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[d24d4e1] | 344 | PassVisitor<pass_type> * const visitor = nullptr; |
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[b73bd70] | 345 | }; |
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[637568b] | 346 | |
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[aff3af4] | 347 | #include "PassVisitor.impl.h" |
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