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