[51b7345] | 1 | #ifndef _INITTWEAK_MODEL_H_ |
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| 2 | #define _INITTWEAK_MODEL_H_ |
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| 3 | |
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| 4 | #include "Association.h" |
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| 5 | #include "SemanticError.h" |
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| 6 | #include "SynTree/Visitor.h" |
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| 7 | |
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| 8 | #include "SynTree/Initializer.h" |
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| 9 | #include "SynTree/Declaration.h" |
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| 10 | #include "SynTree/Expression.h" |
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| 11 | #include "SynTree/Type.h" |
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| 12 | |
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| 13 | namespace InitTweak { |
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| 14 | |
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| 15 | class InitModelBuilder : public AssociationBuilder, public Visitor { |
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| 16 | public: |
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| 17 | InitModelBuilder( Declaration * ); |
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| 18 | ~InitModelBuilder(); |
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| 19 | |
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| 20 | virtual Association *grab_assoc() { taken = true; return building; } |
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| 21 | virtual Association *get_assoc() { return building; } |
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| 22 | void set_assoc( Association *newAssoc ) { building = newAssoc; } |
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| 23 | |
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| 24 | void init(); |
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| 25 | static int interpretDimension( Expression *exp ) { |
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| 26 | ConstantFolder folder( exp ); |
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| 27 | try { |
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| 28 | return folder.get_constant(); |
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| 29 | } catch (...) { |
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| 30 | throw SemanticError("Invalid array dimension"); |
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| 31 | } |
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| 32 | } |
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| 33 | |
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| 34 | // types |
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| 35 | virtual void visit( ArrayType * ); |
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| 36 | virtual void visit( StructInstType * ); |
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| 37 | virtual void visit( UnionInstType * ); |
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| 38 | virtual void visit( EnumInstType * ); |
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| 39 | virtual void visit( ContextInstType * ) { throw 0; } |
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| 40 | virtual void visit( TypeInstType * ) { throw 0; } |
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| 41 | // virtual void visit( TupleType *tupleType ); |
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| 42 | // declarations |
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| 43 | virtual void visit( StructDecl *); |
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| 44 | virtual void visit( UnionDecl *); |
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| 45 | virtual void visit( EnumDecl *); |
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| 46 | |
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| 47 | private: |
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| 48 | class ConstantFolder : public Visitor { |
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| 49 | public: |
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| 50 | ConstantFolder( Expression *_expr = 0 ): expr(_expr) {} |
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| 51 | int get_constant() throw() { expr->accept( *this ); return value; } |
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| 52 | void set_constant( Expression *newExp ) { expr = newExp; } |
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| 53 | // Visitor interface |
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| 54 | void visit( Expression * ) { throw 0; } |
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| 55 | void visit( NameExpr * ) { throw 0; } |
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| 56 | void visit( CastExpr * ) { throw 0; } |
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| 57 | void visit( UntypedMemberExpr * ) { throw 0; } |
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| 58 | void visit( VariableExpr * ) { throw 0; } |
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| 59 | void visit( ConstantExpr * ); |
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| 60 | void visit( SizeofExpr * ) { throw 0; } |
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| 61 | void visit( AttrExpr * ) { throw 0; } |
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| 62 | void visit( LogicalExpr * ) { throw 0; } |
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| 63 | void visit( ConditionalExpr * ) { throw 0; } |
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| 64 | void visit( CommaExpr * ) { throw 0; } |
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| 65 | private: |
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| 66 | Expression *expr; |
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| 67 | int value; |
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| 68 | }; |
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| 69 | |
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| 70 | bool taken; |
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| 71 | Declaration *decl; // ? |
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| 72 | Association *building; |
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| 73 | }; |
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| 74 | |
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| 75 | class InitModelFiller : public AssociationFiller, public Visitor { |
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| 76 | public: |
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| 77 | InitModelFiller( Association *, Initializer *, bool _topLevel = false ); |
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| 78 | ~InitModelFiller() { /* pointers in here are not owned by object (never created by object either) */ } |
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| 79 | virtual Association *get_assoc() { return model; } |
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| 80 | virtual void set_assoc( Association *newAssoc ) { model = newAssoc; } |
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| 81 | |
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| 82 | void init(); |
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| 83 | // Visitor interface |
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| 84 | virtual void visit( MemberInit *memberInit ) { throw 0; } |
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| 85 | virtual void visit( ElementInit *elementInit ) { throw 0; } |
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| 86 | virtual void visit( SingleInit *singleInit ); |
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| 87 | virtual void visit( ListInit *listInit ); |
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| 88 | |
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| 89 | private: |
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| 90 | Association *model; |
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| 91 | Initializer *orgInit; |
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| 92 | bool topLevel; |
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| 93 | long int next; |
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| 94 | }; |
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| 95 | |
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| 96 | class InitUnspooler : public AssociationVisitor { |
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| 97 | public: |
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| 98 | InitUnspooler() : init(0), taken( false ) {} |
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| 99 | virtual ~InitUnspooler() { if (!taken && (init != 0)) { delete init; init = 0; } } |
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| 100 | Initializer *get_initializer() { return init; } |
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| 101 | Initializer *grab_initializer() { taken = true; return init; } |
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| 102 | |
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| 103 | virtual void visit( SingleName * ); |
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| 104 | virtual void visit( PointAssociation * ); |
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| 105 | virtual void visit( RangeAssociation * ) { std::cerr << "InitUnspooler - In a range assoc" << std::endl; return; } |
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| 106 | |
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| 107 | private: |
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| 108 | Initializer *init; |
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| 109 | bool taken; |
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| 110 | }; |
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| 111 | |
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| 112 | } // namespace InitTweak |
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| 113 | |
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| 114 | #endif // #define _INITTWEAK_MODEL_H_ |
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| 115 | |
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| 116 | /* |
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| 117 | Local Variables: |
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| 118 | mode: c++ |
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| 119 | End: |
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| 120 | */ |
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