1 | #ifndef VISITOR_H
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2 | #define VISITOR_H
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3 |
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4 | #include "SynTree.h"
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5 | #include "SemanticError.h"
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6 | #include "CompilerError.h"
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7 |
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8 |
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9 | class Visitor {
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10 | protected:
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11 | Visitor();
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12 | virtual ~Visitor();
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13 | public:
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14 | virtual void visit( ObjectDecl *objectDecl );
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15 | virtual void visit( FunctionDecl *functionDecl );
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16 | virtual void visit( StructDecl *aggregateDecl );
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17 | virtual void visit( UnionDecl *aggregateDecl );
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18 | virtual void visit( EnumDecl *aggregateDecl );
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19 | virtual void visit( ContextDecl *aggregateDecl );
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20 | virtual void visit( TypeDecl *typeDecl );
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21 | virtual void visit( TypedefDecl *typeDecl );
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22 |
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23 | virtual void visit( CompoundStmt *compoundStmt );
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24 | virtual void visit( ExprStmt *exprStmt );
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25 | virtual void visit( IfStmt *ifStmt );
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26 | virtual void visit( WhileStmt *whileStmt );
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27 | virtual void visit( ForStmt *forStmt );
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28 | virtual void visit( SwitchStmt *switchStmt );
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29 | virtual void visit( ChooseStmt *switchStmt );
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30 | virtual void visit( FallthruStmt *switchStmt );
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31 | virtual void visit( CaseStmt *caseStmt );
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32 | virtual void visit( BranchStmt *branchStmt );
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33 | virtual void visit( ReturnStmt *returnStmt );
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34 | virtual void visit( TryStmt *tryStmt );
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35 | virtual void visit( CatchStmt *catchStmt );
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36 | virtual void visit( FinallyStmt *finallyStmt );
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37 | virtual void visit( NullStmt *nullStmt );
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38 | virtual void visit( DeclStmt *declStmt );
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39 |
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40 | virtual void visit( ApplicationExpr *applicationExpr );
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41 | virtual void visit( UntypedExpr *untypedExpr );
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42 | virtual void visit( NameExpr *nameExpr );
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43 | virtual void visit( CastExpr *castExpr );
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44 | virtual void visit( AddressExpr *addressExpr );
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45 | virtual void visit( LabelAddressExpr *labAddressExpr );
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46 | virtual void visit( UntypedMemberExpr *memberExpr );
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47 | virtual void visit( MemberExpr *memberExpr );
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48 | virtual void visit( VariableExpr *variableExpr );
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49 | virtual void visit( ConstantExpr *constantExpr );
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50 | virtual void visit( SizeofExpr *sizeofExpr );
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51 | virtual void visit( AttrExpr *attrExpr );
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52 | virtual void visit( LogicalExpr *logicalExpr );
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53 | virtual void visit( ConditionalExpr *conditionalExpr );
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54 | virtual void visit( CommaExpr *commaExpr );
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55 | virtual void visit( TupleExpr *tupleExpr );
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56 | virtual void visit( SolvedTupleExpr *tupleExpr );
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57 | virtual void visit( TypeExpr *typeExpr );
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58 | virtual void visit( UntypedValofExpr *valofExpr );
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59 |
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60 | virtual void visit( VoidType *basicType );
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61 | virtual void visit( BasicType *basicType );
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62 | virtual void visit( PointerType *pointerType );
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63 | virtual void visit( ArrayType *arrayType );
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64 | virtual void visit( FunctionType *functionType );
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65 | virtual void visit( StructInstType *aggregateUseType );
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66 | virtual void visit( UnionInstType *aggregateUseType );
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67 | virtual void visit( EnumInstType *aggregateUseType );
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68 | virtual void visit( ContextInstType *aggregateUseType );
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69 | virtual void visit( TypeInstType *aggregateUseType );
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70 | virtual void visit( TupleType *tupleType );
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71 | virtual void visit( TypeofType *typeofType );
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72 | virtual void visit( AttrType *attrType );
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73 |
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74 | virtual void visit( MemberInit *memberInit );
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75 | virtual void visit( ElementInit *elementInit );
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76 | virtual void visit( SingleInit *singleInit );
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77 | virtual void visit( ListInit *listInit );
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78 |
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79 | virtual void visit( Subrange *subrange );
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80 |
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81 | virtual void visit( Constant *constant );
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82 | private:
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83 | virtual void visit( AggregateDecl *aggregateDecl );
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84 | virtual void visit( NamedTypeDecl *typeDecl );
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85 | virtual void visit( ReferenceToType *aggregateUseType );
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86 | };
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87 |
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88 | template< typename TreeType, typename VisitorType >
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89 | inline void maybeAccept( TreeType *tree, VisitorType &visitor ) {
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90 | if ( tree ) {
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91 | tree->accept( visitor );
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92 | }
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93 | }
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94 |
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95 | template< typename Container, typename VisitorType >
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96 | inline void acceptAll( Container &container, VisitorType &visitor ) {
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97 | SemanticError errors;
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98 | for ( typename Container::iterator i = container.begin(); i != container.end(); ++i ) {
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99 | try {
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100 | if ( *i ) {
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101 | (*i)->accept( visitor );
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102 | }
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103 | } catch( SemanticError &e ) {
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104 | errors.append( e );
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105 | }
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106 | }
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107 | if ( !errors.isEmpty() ) {
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108 | throw errors;
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109 | }
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110 | }
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111 |
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112 | template< typename Container, typename VisitorType >
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113 | void acceptAllFold( Container &container, VisitorType &visitor, VisitorType &around ) {
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114 | SemanticError errors;
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115 | for ( typename Container::iterator i = container.begin(); i != container.end(); ++i ) {
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116 | try {
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117 | if ( *i ) {
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118 | VisitorType *v = new VisitorType;
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119 | (*i)->accept( *v );
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120 |
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121 | typename Container::iterator nxt = i; nxt++; // forward_iterator
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122 | if ( nxt == container.end() )
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123 | visitor += *v;
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124 | else
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125 | visitor += *v + around;
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126 |
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127 | delete v;
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128 | }
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129 | } catch( SemanticError &e ) {
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130 | errors.append( e );
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131 | }
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132 | }
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133 | if ( !errors.isEmpty() ) {
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134 | throw errors;
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135 | }
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136 | }
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137 |
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138 | #endif // VISITOR_H
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