[0dd3a2f] | 1 | // |
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| 2 | // Cforall Version 1.0.0 Copyright (C) 2015 University of Waterloo |
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| 3 | // |
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| 4 | // The contents of this file are covered under the licence agreement in the |
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| 5 | // file "LICENCE" distributed with Cforall. |
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| 6 | // |
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| 7 | // Indexer.cc -- |
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| 8 | // |
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| 9 | // Author : Richard C. Bilson |
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| 10 | // Created On : Sun May 17 21:37:33 2015 |
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[ae4c85a] | 11 | // Last Modified By : Rob Schluntz |
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| 12 | // Last Modified On : Wed Aug 05 13:52:42 2015 |
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| 13 | // Update Count : 10 |
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[0dd3a2f] | 14 | // |
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| 15 | |
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[51b7345] | 16 | #include "SynTree/Declaration.h" |
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| 17 | #include "SynTree/Type.h" |
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| 18 | #include "SynTree/Expression.h" |
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| 19 | #include "SynTree/Initializer.h" |
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| 20 | #include "SynTree/Statement.h" |
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| 21 | #include "Indexer.h" |
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| 22 | #include <typeinfo> |
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| 23 | #include "utility.h" |
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| 24 | |
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[17cd4eb] | 25 | #define debugPrint(x) if ( doDebug ) { std::cout << x; } |
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[51b7345] | 26 | |
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| 27 | namespace SymTab { |
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[ae4c85a] | 28 | template< typename Container, typename VisitorType > |
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| 29 | inline void acceptAllNewScope( Container &container, VisitorType &visitor ) { |
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| 30 | visitor.enterScope(); |
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| 31 | acceptAll( container, visitor ); |
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| 32 | visitor.leaveScope(); |
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| 33 | } |
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| 34 | |
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[a08ba92] | 35 | Indexer::Indexer( bool useDebug ) : doDebug( useDebug ) {} |
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[17cd4eb] | 36 | |
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[a08ba92] | 37 | Indexer::~Indexer() {} |
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[17cd4eb] | 38 | |
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[a08ba92] | 39 | void Indexer::visit( ObjectDecl *objectDecl ) { |
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[ae4c85a] | 40 | enterScope(); |
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[0dd3a2f] | 41 | maybeAccept( objectDecl->get_type(), *this ); |
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[ae4c85a] | 42 | leaveScope(); |
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[0dd3a2f] | 43 | maybeAccept( objectDecl->get_init(), *this ); |
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| 44 | maybeAccept( objectDecl->get_bitfieldWidth(), *this ); |
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| 45 | if ( objectDecl->get_name() != "" ) { |
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| 46 | debugPrint( "Adding object " << objectDecl->get_name() << std::endl ); |
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| 47 | idTable.addDecl( objectDecl ); |
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| 48 | } // if |
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[a08ba92] | 49 | } |
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[17cd4eb] | 50 | |
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[a08ba92] | 51 | void Indexer::visit( FunctionDecl *functionDecl ) { |
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[0dd3a2f] | 52 | if ( functionDecl->get_name() == "" ) return; |
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| 53 | debugPrint( "Adding function " << functionDecl->get_name() << std::endl ); |
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| 54 | idTable.addDecl( functionDecl ); |
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| 55 | enterScope(); |
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| 56 | maybeAccept( functionDecl->get_functionType(), *this ); |
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| 57 | acceptAll( functionDecl->get_oldDecls(), *this ); |
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| 58 | maybeAccept( functionDecl->get_statements(), *this ); |
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| 59 | leaveScope(); |
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[a08ba92] | 60 | } |
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[51b7345] | 61 | |
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[44b5ca0] | 62 | |
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| 63 | // A NOTE ON THE ORDER OF TRAVERSAL |
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| 64 | // |
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| 65 | // Types and typedefs have their base types visited before they are added to the type table. This is ok, since there is |
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| 66 | // no such thing as a recursive type or typedef. |
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| 67 | // |
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| 68 | // typedef struct { T *x; } T; // never allowed |
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| 69 | // |
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| 70 | // for structs/unions, it is possible to have recursion, so the decl should be added as if it's incomplete to begin, the |
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| 71 | // members are traversed, and then the complete type should be added (assuming the type is completed by this particular |
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| 72 | // declaration). |
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| 73 | // |
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| 74 | // struct T { struct T *x; }; // allowed |
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| 75 | // |
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| 76 | // It is important to add the complete type to the symbol table *after* the members/base has been traversed, since that |
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| 77 | // traversal may modify the definition of the type and these modifications should be visible when the symbol table is |
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| 78 | // queried later in this pass. |
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| 79 | // |
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| 80 | // TODO: figure out whether recursive contexts are sensible/possible/reasonable. |
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| 81 | |
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[51b7345] | 82 | |
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[a08ba92] | 83 | void Indexer::visit( TypeDecl *typeDecl ) { |
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[0dd3a2f] | 84 | // see A NOTE ON THE ORDER OF TRAVERSAL, above |
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[44b5ca0] | 85 | // note that assertions come after the type is added to the symtab, since they are not part of the type proper |
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| 86 | // and may depend on the type itself |
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[0dd3a2f] | 87 | enterScope(); |
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| 88 | acceptAll( typeDecl->get_parameters(), *this ); |
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| 89 | maybeAccept( typeDecl->get_base(), *this ); |
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| 90 | leaveScope(); |
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| 91 | debugPrint( "Adding type " << typeDecl->get_name() << std::endl ); |
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| 92 | typeTable.add( typeDecl ); |
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| 93 | acceptAll( typeDecl->get_assertions(), *this ); |
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[a08ba92] | 94 | } |
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[17cd4eb] | 95 | |
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[a08ba92] | 96 | void Indexer::visit( TypedefDecl *typeDecl ) { |
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[0dd3a2f] | 97 | enterScope(); |
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| 98 | acceptAll( typeDecl->get_parameters(), *this ); |
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| 99 | maybeAccept( typeDecl->get_base(), *this ); |
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| 100 | leaveScope(); |
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| 101 | debugPrint( "Adding typedef " << typeDecl->get_name() << std::endl ); |
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| 102 | typeTable.add( typeDecl ); |
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[a08ba92] | 103 | } |
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[17cd4eb] | 104 | |
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[a08ba92] | 105 | void Indexer::visit( StructDecl *aggregateDecl ) { |
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[0dd3a2f] | 106 | // make up a forward declaration and add it before processing the members |
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| 107 | StructDecl fwdDecl( aggregateDecl->get_name() ); |
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| 108 | cloneAll( aggregateDecl->get_parameters(), fwdDecl.get_parameters() ); |
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| 109 | debugPrint( "Adding fwd decl for struct " << fwdDecl.get_name() << std::endl ); |
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| 110 | structTable.add( &fwdDecl ); |
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[51b7345] | 111 | |
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[0dd3a2f] | 112 | enterScope(); |
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| 113 | acceptAll( aggregateDecl->get_parameters(), *this ); |
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| 114 | acceptAll( aggregateDecl->get_members(), *this ); |
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| 115 | leaveScope(); |
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[51b7345] | 116 | |
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[0dd3a2f] | 117 | debugPrint( "Adding struct " << aggregateDecl->get_name() << std::endl ); |
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| 118 | // this addition replaces the forward declaration |
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| 119 | structTable.add( aggregateDecl ); |
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[a08ba92] | 120 | } |
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[17cd4eb] | 121 | |
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[a08ba92] | 122 | void Indexer::visit( UnionDecl *aggregateDecl ) { |
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[0dd3a2f] | 123 | // make up a forward declaration and add it before processing the members |
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| 124 | UnionDecl fwdDecl( aggregateDecl->get_name() ); |
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| 125 | cloneAll( aggregateDecl->get_parameters(), fwdDecl.get_parameters() ); |
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| 126 | debugPrint( "Adding fwd decl for union " << fwdDecl.get_name() << std::endl ); |
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| 127 | unionTable.add( &fwdDecl ); |
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[51b7345] | 128 | |
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[0dd3a2f] | 129 | enterScope(); |
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| 130 | acceptAll( aggregateDecl->get_parameters(), *this ); |
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| 131 | acceptAll( aggregateDecl->get_members(), *this ); |
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| 132 | leaveScope(); |
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[51b7345] | 133 | |
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[0dd3a2f] | 134 | debugPrint( "Adding union " << aggregateDecl->get_name() << std::endl ); |
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| 135 | unionTable.add( aggregateDecl ); |
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[a08ba92] | 136 | } |
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[17cd4eb] | 137 | |
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[a08ba92] | 138 | void Indexer::visit( EnumDecl *aggregateDecl ) { |
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[0dd3a2f] | 139 | debugPrint( "Adding enum " << aggregateDecl->get_name() << std::endl ); |
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| 140 | enumTable.add( aggregateDecl ); |
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| 141 | // unlike structs, contexts, and unions, enums inject their members into the global scope |
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| 142 | acceptAll( aggregateDecl->get_members(), *this ); |
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[a08ba92] | 143 | } |
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[17cd4eb] | 144 | |
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[a08ba92] | 145 | void Indexer::visit( ContextDecl *aggregateDecl ) { |
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[0dd3a2f] | 146 | enterScope(); |
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| 147 | acceptAll( aggregateDecl->get_parameters(), *this ); |
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| 148 | acceptAll( aggregateDecl->get_members(), *this ); |
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| 149 | leaveScope(); |
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[51b7345] | 150 | |
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[0dd3a2f] | 151 | debugPrint( "Adding context " << aggregateDecl->get_name() << std::endl ); |
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| 152 | contextTable.add( aggregateDecl ); |
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[a08ba92] | 153 | } |
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[17cd4eb] | 154 | |
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[a08ba92] | 155 | void Indexer::visit( CompoundStmt *compoundStmt ) { |
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[0dd3a2f] | 156 | enterScope(); |
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| 157 | acceptAll( compoundStmt->get_kids(), *this ); |
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| 158 | leaveScope(); |
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[a08ba92] | 159 | } |
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[17cd4eb] | 160 | |
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[ae4c85a] | 161 | |
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| 162 | void Indexer::visit( ApplicationExpr *applicationExpr ) { |
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| 163 | acceptAllNewScope( applicationExpr->get_results(), *this ); |
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| 164 | maybeAccept( applicationExpr->get_function(), *this ); |
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| 165 | acceptAll( applicationExpr->get_args(), *this ); |
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| 166 | } |
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| 167 | |
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| 168 | void Indexer::visit( UntypedExpr *untypedExpr ) { |
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| 169 | acceptAllNewScope( untypedExpr->get_results(), *this ); |
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| 170 | acceptAll( untypedExpr->get_args(), *this ); |
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| 171 | } |
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| 172 | |
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| 173 | void Indexer::visit( NameExpr *nameExpr ) { |
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| 174 | acceptAllNewScope( nameExpr->get_results(), *this ); |
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| 175 | } |
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| 176 | |
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| 177 | void Indexer::visit( AddressExpr *addressExpr ) { |
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| 178 | acceptAllNewScope( addressExpr->get_results(), *this ); |
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| 179 | maybeAccept( addressExpr->get_arg(), *this ); |
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| 180 | } |
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| 181 | |
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| 182 | void Indexer::visit( LabelAddressExpr *labAddressExpr ) { |
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| 183 | acceptAllNewScope( labAddressExpr->get_results(), *this ); |
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| 184 | maybeAccept( labAddressExpr->get_arg(), *this ); |
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| 185 | } |
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| 186 | |
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| 187 | void Indexer::visit( CastExpr *castExpr ) { |
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| 188 | acceptAllNewScope( castExpr->get_results(), *this ); |
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| 189 | maybeAccept( castExpr->get_arg(), *this ); |
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| 190 | } |
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| 191 | |
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| 192 | void Indexer::visit( UntypedMemberExpr *memberExpr ) { |
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| 193 | acceptAllNewScope( memberExpr->get_results(), *this ); |
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| 194 | maybeAccept( memberExpr->get_aggregate(), *this ); |
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| 195 | } |
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| 196 | |
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| 197 | void Indexer::visit( MemberExpr *memberExpr ) { |
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| 198 | acceptAllNewScope( memberExpr->get_results(), *this ); |
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| 199 | maybeAccept( memberExpr->get_aggregate(), *this ); |
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| 200 | } |
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| 201 | |
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| 202 | void Indexer::visit( VariableExpr *variableExpr ) { |
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| 203 | acceptAllNewScope( variableExpr->get_results(), *this ); |
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| 204 | } |
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| 205 | |
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| 206 | void Indexer::visit( ConstantExpr *constantExpr ) { |
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| 207 | acceptAllNewScope( constantExpr->get_results(), *this ); |
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| 208 | maybeAccept( constantExpr->get_constant(), *this ); |
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| 209 | } |
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| 210 | |
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| 211 | void Indexer::visit( SizeofExpr *sizeofExpr ) { |
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| 212 | acceptAllNewScope( sizeofExpr->get_results(), *this ); |
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| 213 | if ( sizeofExpr->get_isType() ) { |
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| 214 | maybeAccept( sizeofExpr->get_type(), *this ); |
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| 215 | } else { |
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| 216 | maybeAccept( sizeofExpr->get_expr(), *this ); |
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| 217 | } |
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| 218 | } |
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| 219 | |
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| 220 | void Indexer::visit( AttrExpr *attrExpr ) { |
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| 221 | acceptAllNewScope( attrExpr->get_results(), *this ); |
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| 222 | if ( attrExpr->get_isType() ) { |
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| 223 | maybeAccept( attrExpr->get_type(), *this ); |
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| 224 | } else { |
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| 225 | maybeAccept( attrExpr->get_expr(), *this ); |
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| 226 | } |
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| 227 | } |
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| 228 | |
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| 229 | void Indexer::visit( LogicalExpr *logicalExpr ) { |
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| 230 | acceptAllNewScope( logicalExpr->get_results(), *this ); |
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| 231 | maybeAccept( logicalExpr->get_arg1(), *this ); |
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| 232 | maybeAccept( logicalExpr->get_arg2(), *this ); |
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| 233 | } |
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| 234 | |
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| 235 | void Indexer::visit( ConditionalExpr *conditionalExpr ) { |
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| 236 | acceptAllNewScope( conditionalExpr->get_results(), *this ); |
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| 237 | maybeAccept( conditionalExpr->get_arg1(), *this ); |
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| 238 | maybeAccept( conditionalExpr->get_arg2(), *this ); |
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| 239 | maybeAccept( conditionalExpr->get_arg3(), *this ); |
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| 240 | } |
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| 241 | |
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| 242 | void Indexer::visit( CommaExpr *commaExpr ) { |
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| 243 | acceptAllNewScope( commaExpr->get_results(), *this ); |
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| 244 | maybeAccept( commaExpr->get_arg1(), *this ); |
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| 245 | maybeAccept( commaExpr->get_arg2(), *this ); |
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| 246 | } |
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| 247 | |
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| 248 | void Indexer::visit( TupleExpr *tupleExpr ) { |
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| 249 | acceptAllNewScope( tupleExpr->get_results(), *this ); |
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| 250 | acceptAll( tupleExpr->get_exprs(), *this ); |
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| 251 | } |
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| 252 | |
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| 253 | void Indexer::visit( SolvedTupleExpr *tupleExpr ) { |
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| 254 | acceptAllNewScope( tupleExpr->get_results(), *this ); |
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| 255 | acceptAll( tupleExpr->get_exprs(), *this ); |
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| 256 | } |
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| 257 | |
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| 258 | void Indexer::visit( TypeExpr *typeExpr ) { |
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| 259 | acceptAllNewScope( typeExpr->get_results(), *this ); |
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| 260 | maybeAccept( typeExpr->get_type(), *this ); |
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| 261 | } |
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| 262 | |
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| 263 | void Indexer::visit( AsmExpr *asmExpr ) { |
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| 264 | maybeAccept( asmExpr->get_inout(), *this ); |
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| 265 | maybeAccept( asmExpr->get_constraint(), *this ); |
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| 266 | maybeAccept( asmExpr->get_operand(), *this ); |
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| 267 | } |
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| 268 | |
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| 269 | void Indexer::visit( UntypedValofExpr *valofExpr ) { |
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| 270 | acceptAllNewScope( valofExpr->get_results(), *this ); |
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| 271 | maybeAccept( valofExpr->get_body(), *this ); |
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| 272 | } |
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| 273 | |
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| 274 | |
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[a08ba92] | 275 | void Indexer::visit( ContextInstType *contextInst ) { |
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[0dd3a2f] | 276 | acceptAll( contextInst->get_parameters(), *this ); |
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| 277 | acceptAll( contextInst->get_members(), *this ); |
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[a08ba92] | 278 | } |
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[17cd4eb] | 279 | |
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[a08ba92] | 280 | void Indexer::visit( StructInstType *structInst ) { |
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[0dd3a2f] | 281 | if ( ! structTable.lookup( structInst->get_name() ) ) { |
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| 282 | debugPrint( "Adding struct " << structInst->get_name() << " from implicit forward declaration" << std::endl ); |
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| 283 | structTable.add( structInst->get_name() ); |
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| 284 | } |
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| 285 | enterScope(); |
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| 286 | acceptAll( structInst->get_parameters(), *this ); |
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| 287 | leaveScope(); |
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[a08ba92] | 288 | } |
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[17cd4eb] | 289 | |
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[a08ba92] | 290 | void Indexer::visit( UnionInstType *unionInst ) { |
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[0dd3a2f] | 291 | if ( ! unionTable.lookup( unionInst->get_name() ) ) { |
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| 292 | debugPrint( "Adding union " << unionInst->get_name() << " from implicit forward declaration" << std::endl ); |
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| 293 | unionTable.add( unionInst->get_name() ); |
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| 294 | } |
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| 295 | enterScope(); |
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| 296 | acceptAll( unionInst->get_parameters(), *this ); |
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| 297 | leaveScope(); |
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[a08ba92] | 298 | } |
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[17cd4eb] | 299 | |
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[a08ba92] | 300 | void Indexer::visit( ForStmt *forStmt ) { |
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| 301 | // for statements introduce a level of scope |
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| 302 | enterScope(); |
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| 303 | Visitor::visit( forStmt ); |
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| 304 | leaveScope(); |
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| 305 | } |
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[d4778a6] | 306 | |
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| 307 | |
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[a08ba92] | 308 | void Indexer::lookupId( const std::string &id, std::list< DeclarationWithType* > &list ) const { |
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[0dd3a2f] | 309 | idTable.lookupId( id, list ); |
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[a08ba92] | 310 | } |
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[17cd4eb] | 311 | |
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[a08ba92] | 312 | DeclarationWithType* Indexer::lookupId( const std::string &id) const { |
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[0dd3a2f] | 313 | return idTable.lookupId(id); |
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[a08ba92] | 314 | } |
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[bdd516a] | 315 | |
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[a08ba92] | 316 | NamedTypeDecl *Indexer::lookupType( const std::string &id ) const { |
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[0dd3a2f] | 317 | return typeTable.lookup( id ); |
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[a08ba92] | 318 | } |
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[17cd4eb] | 319 | |
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[a08ba92] | 320 | StructDecl *Indexer::lookupStruct( const std::string &id ) const { |
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[0dd3a2f] | 321 | return structTable.lookup( id ); |
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[a08ba92] | 322 | } |
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[17cd4eb] | 323 | |
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[a08ba92] | 324 | EnumDecl *Indexer::lookupEnum( const std::string &id ) const { |
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[0dd3a2f] | 325 | return enumTable.lookup( id ); |
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[a08ba92] | 326 | } |
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[17cd4eb] | 327 | |
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[a08ba92] | 328 | UnionDecl *Indexer::lookupUnion( const std::string &id ) const { |
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[0dd3a2f] | 329 | return unionTable.lookup( id ); |
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[a08ba92] | 330 | } |
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[17cd4eb] | 331 | |
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[a08ba92] | 332 | ContextDecl * Indexer::lookupContext( const std::string &id ) const { |
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[0dd3a2f] | 333 | return contextTable.lookup( id ); |
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[a08ba92] | 334 | } |
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[17cd4eb] | 335 | |
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[a08ba92] | 336 | void Indexer::enterScope() { |
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[0dd3a2f] | 337 | if ( doDebug ) { |
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| 338 | std::cout << "--- Entering scope" << std::endl; |
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| 339 | } |
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| 340 | idTable.enterScope(); |
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| 341 | typeTable.enterScope(); |
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| 342 | structTable.enterScope(); |
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| 343 | enumTable.enterScope(); |
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| 344 | unionTable.enterScope(); |
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| 345 | contextTable.enterScope(); |
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[a08ba92] | 346 | } |
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[17cd4eb] | 347 | |
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[a08ba92] | 348 | void Indexer::leaveScope() { |
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[0dd3a2f] | 349 | using std::cout; |
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| 350 | using std::endl; |
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[51b7345] | 351 | |
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[0dd3a2f] | 352 | if ( doDebug ) { |
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| 353 | cout << "--- Leaving scope containing" << endl; |
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| 354 | idTable.dump( cout ); |
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| 355 | typeTable.dump( cout ); |
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| 356 | structTable.dump( cout ); |
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| 357 | enumTable.dump( cout ); |
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| 358 | unionTable.dump( cout ); |
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| 359 | contextTable.dump( cout ); |
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| 360 | } |
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| 361 | idTable.leaveScope(); |
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| 362 | typeTable.leaveScope(); |
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| 363 | structTable.leaveScope(); |
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| 364 | enumTable.leaveScope(); |
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| 365 | unionTable.leaveScope(); |
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| 366 | contextTable.leaveScope(); |
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[a08ba92] | 367 | } |
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[17cd4eb] | 368 | |
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[a08ba92] | 369 | void Indexer::print( std::ostream &os, int indent ) const { |
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| 370 | using std::cerr; |
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| 371 | using std::endl; |
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[bdd516a] | 372 | |
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[a08ba92] | 373 | cerr << "===idTable===" << endl; |
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| 374 | idTable.dump( os ); |
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| 375 | cerr << "===typeTable===" << endl; |
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| 376 | typeTable.dump( os ); |
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| 377 | cerr << "===structTable===" << endl; |
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| 378 | structTable.dump( os ); |
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| 379 | cerr << "===enumTable===" << endl; |
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| 380 | enumTable.dump( os ); |
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| 381 | cerr << "===unionTable===" << endl; |
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| 382 | unionTable.dump( os ); |
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| 383 | cerr << "===contextTable===" << endl; |
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| 384 | contextTable.dump( os ); |
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[bdd516a] | 385 | #if 0 |
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[0dd3a2f] | 386 | idTable.dump( os ); |
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| 387 | typeTable.dump( os ); |
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| 388 | structTable.dump( os ); |
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| 389 | enumTable.dump( os ); |
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| 390 | unionTable.dump( os ); |
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| 391 | contextTable.dump( os ); |
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[bdd516a] | 392 | #endif |
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[a08ba92] | 393 | } |
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[51b7345] | 394 | } // namespace SymTab |
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[0dd3a2f] | 395 | |
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| 396 | // Local Variables: // |
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| 397 | // tab-width: 4 // |
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| 398 | // mode: c++ // |
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| 399 | // compile-command: "make install" // |
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| 400 | // End: // |
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