| 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.h -- |
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| 8 | // |
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| 9 | // Author : Richard C. Bilson |
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| 10 | // Created On : Sun May 17 21:38:55 2015 |
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| 11 | // Last Modified By : Peter A. Buhr |
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| 12 | // Last Modified On : Sat Jul 22 09:46:34 2017 |
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| 13 | // Update Count : 7 |
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| 14 | // |
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| 15 | |
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| 16 | #pragma once |
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| 17 | |
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| 18 | #include <iosfwd> // for ostream |
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| 19 | #include <list> // for list |
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| 20 | #include <string> // for string |
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| 21 | |
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| 22 | #include "SynTree/Visitor.h" // for Visitor |
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| 23 | #include "SynTree/SynTree.h" // for AST nodes |
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| 24 | |
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| 25 | namespace SymTab { |
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| 26 | class Indexer : public Visitor { |
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| 27 | public: |
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| 28 | explicit Indexer( bool useDebug = false ); |
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| 29 | |
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| 30 | Indexer( const Indexer &that ); |
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| 31 | Indexer( Indexer &&that ); |
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| 32 | virtual ~Indexer(); |
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| 33 | Indexer& operator= ( const Indexer &that ); |
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| 34 | Indexer& operator= ( Indexer &&that ); |
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| 35 | |
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| 36 | using Visitor::visit; |
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| 37 | virtual void visit( ObjectDecl *objectDecl ); |
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| 38 | virtual void visit( FunctionDecl *functionDecl ); |
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| 39 | virtual void visit( TypeDecl *typeDecl ); |
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| 40 | virtual void visit( TypedefDecl *typeDecl ); |
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| 41 | virtual void visit( StructDecl *aggregateDecl ); |
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| 42 | virtual void visit( UnionDecl *aggregateDecl ); |
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| 43 | virtual void visit( EnumDecl *aggregateDecl ); |
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| 44 | virtual void visit( TraitDecl *aggregateDecl ); |
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| 45 | |
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| 46 | virtual void visit( CompoundStmt *compoundStmt ); |
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| 47 | |
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| 48 | virtual void visit( ApplicationExpr *applicationExpr ); |
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| 49 | virtual void visit( UntypedExpr *untypedExpr ); |
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| 50 | virtual void visit( NameExpr *nameExpr ); |
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| 51 | virtual void visit( CastExpr *castExpr ); |
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| 52 | virtual void visit( AddressExpr *addressExpr ); |
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| 53 | virtual void visit( LabelAddressExpr *labAddressExpr ); |
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| 54 | virtual void visit( UntypedMemberExpr *memberExpr ); |
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| 55 | virtual void visit( MemberExpr *memberExpr ); |
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| 56 | virtual void visit( VariableExpr *variableExpr ); |
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| 57 | virtual void visit( ConstantExpr *constantExpr ); |
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| 58 | virtual void visit( SizeofExpr *sizeofExpr ); |
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| 59 | virtual void visit( AlignofExpr *alignofExpr ); |
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| 60 | virtual void visit( UntypedOffsetofExpr *offsetofExpr ); |
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| 61 | virtual void visit( OffsetofExpr *offsetofExpr ); |
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| 62 | virtual void visit( OffsetPackExpr *offsetPackExpr ); |
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| 63 | virtual void visit( AttrExpr *attrExpr ); |
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| 64 | virtual void visit( LogicalExpr *logicalExpr ); |
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| 65 | virtual void visit( ConditionalExpr *conditionalExpr ); |
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| 66 | virtual void visit( CommaExpr *commaExpr ); |
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| 67 | virtual void visit( TypeExpr *typeExpr ); |
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| 68 | virtual void visit( AsmExpr *asmExpr ); |
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| 69 | virtual void visit( ImplicitCopyCtorExpr *impCpCtorExpr ); |
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| 70 | virtual void visit( ConstructorExpr * ctorExpr ); |
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| 71 | virtual void visit( CompoundLiteralExpr *compLitExpr ); |
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| 72 | virtual void visit( RangeExpr *rangeExpr ); |
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| 73 | virtual void visit( UntypedTupleExpr *tupleExpr ); |
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| 74 | virtual void visit( TupleExpr *tupleExpr ); |
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| 75 | virtual void visit( TupleIndexExpr *tupleExpr ); |
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| 76 | virtual void visit( TupleAssignExpr *tupleExpr ); |
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| 77 | virtual void visit( StmtExpr * stmtExpr ); |
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| 78 | virtual void visit( UniqueExpr * uniqueExpr ); |
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| 79 | |
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| 80 | virtual void visit( TraitInstType *contextInst ); |
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| 81 | virtual void visit( StructInstType *contextInst ); |
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| 82 | virtual void visit( UnionInstType *contextInst ); |
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| 83 | |
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| 84 | virtual void visit( ForStmt *forStmt ); |
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| 85 | |
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| 86 | // when using an indexer manually (e.g., within a mutator traversal), it is necessary to tell the indexer |
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| 87 | // explicitly when scopes begin and end |
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| 88 | void enterScope(); |
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| 89 | void leaveScope(); |
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| 90 | |
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| 91 | /// Gets all declarations with the given ID |
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| 92 | void lookupId( const std::string &id, std::list< DeclarationWithType* > &out ) const; |
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| 93 | /// Gets the top-most type declaration with the given ID |
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| 94 | NamedTypeDecl *lookupType( const std::string &id ) const; |
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| 95 | /// Gets the top-most struct declaration with the given ID |
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| 96 | StructDecl *lookupStruct( const std::string &id ) const; |
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| 97 | /// Gets the top-most enum declaration with the given ID |
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| 98 | EnumDecl *lookupEnum( const std::string &id ) const; |
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| 99 | /// Gets the top-most union declaration with the given ID |
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| 100 | UnionDecl *lookupUnion( const std::string &id ) const; |
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| 101 | /// Gets the top-most trait declaration with the given ID |
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| 102 | TraitDecl *lookupTrait( const std::string &id ) const; |
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| 103 | |
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| 104 | void print( std::ostream &os, int indent = 0 ) const; |
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| 105 | private: |
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| 106 | /// looks up a specific mangled ID at the given scope |
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| 107 | DeclarationWithType *lookupIdAtScope( const std::string &id, const std::string &mangleName, unsigned long scope ) const; |
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| 108 | /// returns true if there exists a declaration with C linkage and the given name with a different mangled name |
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| 109 | bool hasIncompatibleCDecl( const std::string &id, const std::string &mangleName, unsigned long scope ) const; |
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| 110 | /// returns true if there exists a declaration with C linkage and the given name with the same mangled name |
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| 111 | bool hasCompatibleCDecl( const std::string &id, const std::string &mangleName, unsigned long scope ) const; |
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| 112 | // equivalents to lookup functions that only look at tables at scope `scope` (which should be >= tables->scope) |
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| 113 | NamedTypeDecl *lookupTypeAtScope( const std::string &id, unsigned long scope ) const; |
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| 114 | StructDecl *lookupStructAtScope( const std::string &id, unsigned long scope ) const; |
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| 115 | EnumDecl *lookupEnumAtScope( const std::string &id, unsigned long scope ) const; |
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| 116 | UnionDecl *lookupUnionAtScope( const std::string &id, unsigned long scope ) const; |
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| 117 | TraitDecl *lookupTraitAtScope( const std::string &id, unsigned long scope ) const; |
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| 118 | |
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| 119 | void addId( DeclarationWithType *decl ); |
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| 120 | void addType( NamedTypeDecl *decl ); |
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| 121 | void addStruct( const std::string &id ); |
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| 122 | void addStruct( StructDecl *decl ); |
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| 123 | void addEnum( EnumDecl *decl ); |
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| 124 | void addUnion( const std::string &id ); |
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| 125 | void addUnion( UnionDecl *decl ); |
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| 126 | void addTrait( TraitDecl *decl ); |
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| 127 | |
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| 128 | struct Impl; |
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| 129 | |
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| 130 | Impl *tables; ///< Copy-on-write instance of table data structure |
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| 131 | unsigned long scope; ///< Scope index of this pointer |
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| 132 | bool doDebug; ///< Display debugging trace? |
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| 133 | |
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| 134 | /// Takes a new ref to a table (returns null if null) |
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| 135 | static Impl *newRef( Impl *toClone ); |
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| 136 | /// Clears a ref to a table (does nothing if null) |
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| 137 | static void deleteRef( Impl *toFree ); |
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| 138 | |
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| 139 | // Removes matching autogenerated constructors and destructors |
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| 140 | // so that they will not be selected |
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| 141 | // void removeSpecialOverrides( FunctionDecl *decl ); |
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| 142 | void removeSpecialOverrides( const std::string &id, std::list< DeclarationWithType * > & out ) const; |
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| 143 | |
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| 144 | /// Ensures that tables variable is writable (i.e. allocated, uniquely owned by this Indexer, and at the current scope) |
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| 145 | void makeWritable(); |
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| 146 | }; |
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| 147 | } // namespace SymTab |
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| 148 | |
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| 149 | // Local Variables: // |
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| 150 | // tab-width: 4 // |
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| 151 | // mode: c++ // |
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| 152 | // compile-command: "make install" // |
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| 153 | // End: // |
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