| [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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| [743fbda] | 7 | // Indexer.cc -- | 
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| [0dd3a2f] | 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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| [4e06c1e] | 11 | // Last Modified By : Peter A. Buhr | 
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| [fbcde64] | 12 | // Last Modified On : Thu Mar 30 16:38:47 2017 | 
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|  | 13 | // Update Count     : 19 | 
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| [0dd3a2f] | 14 | // | 
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|  | 15 |  | 
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| [e8032b0] | 16 | #include "Indexer.h" | 
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|  | 17 |  | 
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| [30f9072] | 18 | #include <cassert>                 // for assert, safe_dynamic_cast | 
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|  | 19 | #include <iostream>                // for operator<<, basic_ostream, ostream | 
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|  | 20 | #include <string>                  // for string, operator<<, operator!= | 
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|  | 21 | #include <unordered_map>           // for operator!=, unordered_map<>::const... | 
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|  | 22 | #include <unordered_set>           // for unordered_set | 
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|  | 23 | #include <utility>                 // for pair, make_pair, move | 
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|  | 24 |  | 
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|  | 25 | #include "Common/SemanticError.h"  // for SemanticError | 
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|  | 26 | #include "Common/utility.h"        // for cloneAll | 
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|  | 27 | #include "InitTweak/InitTweak.h"   // for isConstructor, isCopyFunction, isC... | 
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|  | 28 | #include "Mangler.h"               // for Mangler | 
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|  | 29 | #include "Parser/LinkageSpec.h"    // for isMangled, isOverridable, Spec | 
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|  | 30 | #include "ResolvExpr/typeops.h"    // for typesCompatible | 
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|  | 31 | #include "SynTree/Constant.h"      // for Constant | 
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|  | 32 | #include "SynTree/Declaration.h"   // for DeclarationWithType, FunctionDecl | 
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|  | 33 | #include "SynTree/Expression.h"    // for Expression, ImplicitCopyCtorExpr | 
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|  | 34 | #include "SynTree/Initializer.h"   // for Initializer | 
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|  | 35 | #include "SynTree/Statement.h"     // for CompoundStmt, Statement, ForStmt (... | 
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|  | 36 | #include "SynTree/Type.h"          // for Type, StructInstType, UnionInstType | 
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| [1ba88a0] | 37 |  | 
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| [17cd4eb] | 38 | #define debugPrint(x) if ( doDebug ) { std::cout << x; } | 
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| [51b73452] | 39 |  | 
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|  | 40 | namespace SymTab { | 
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| [d5556a3] | 41 | struct NewScope { | 
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|  | 42 | NewScope( SymTab::Indexer & indexer ) : indexer( indexer ) { indexer.enterScope(); } | 
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|  | 43 | ~NewScope() { indexer.leaveScope(); } | 
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|  | 44 | SymTab::Indexer & indexer; | 
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|  | 45 | }; | 
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|  | 46 |  | 
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| [906e24d] | 47 | template< typename TreeType, typename VisitorType > | 
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|  | 48 | inline void acceptNewScope( TreeType *tree, VisitorType &visitor ) { | 
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| [ae4c85a] | 49 | visitor.enterScope(); | 
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| [906e24d] | 50 | maybeAccept( tree, visitor ); | 
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| [ae4c85a] | 51 | visitor.leaveScope(); | 
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|  | 52 | } | 
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|  | 53 |  | 
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| [bed4c63e] | 54 | typedef std::unordered_map< std::string, DeclarationWithType* > MangleTable; | 
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|  | 55 | typedef std::unordered_map< std::string, MangleTable > IdTable; | 
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| [52c2a72] | 56 | typedef std::unordered_map< std::string, NamedTypeDecl* > TypeTable; | 
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|  | 57 | typedef std::unordered_map< std::string, StructDecl* > StructTable; | 
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|  | 58 | typedef std::unordered_map< std::string, EnumDecl* > EnumTable; | 
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|  | 59 | typedef std::unordered_map< std::string, UnionDecl* > UnionTable; | 
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|  | 60 | typedef std::unordered_map< std::string, TraitDecl* > TraitTable; | 
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|  | 61 |  | 
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| [bed4c63e] | 62 | void dump( const IdTable &table, std::ostream &os ) { | 
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|  | 63 | for ( IdTable::const_iterator id = table.begin(); id != table.end(); ++id ) { | 
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|  | 64 | for ( MangleTable::const_iterator mangle = id->second.begin(); mangle != id->second.end(); ++mangle ) { | 
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|  | 65 | os << mangle->second << std::endl; | 
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|  | 66 | } | 
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|  | 67 | } | 
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|  | 68 | } | 
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| [743fbda] | 69 |  | 
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| [52c2a72] | 70 | template< typename Decl > | 
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|  | 71 | void dump( const std::unordered_map< std::string, Decl* > &table, std::ostream &os ) { | 
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|  | 72 | for ( typename std::unordered_map< std::string, Decl* >::const_iterator it = table.begin(); it != table.end(); ++it ) { | 
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|  | 73 | os << it->second << std::endl; | 
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|  | 74 | } // for | 
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|  | 75 | } | 
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| [743fbda] | 76 |  | 
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| [e8032b0] | 77 | struct Indexer::Impl { | 
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| [52c2a72] | 78 | Impl( unsigned long _scope ) : refCount(1), scope( _scope ), size( 0 ), base(), | 
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| [e8032b0] | 79 | idTable(), typeTable(), structTable(), enumTable(), unionTable(), traitTable() {} | 
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| [52c2a72] | 80 | Impl( unsigned long _scope, Indexer &&_base ) : refCount(1), scope( _scope ), size( 0 ), base( _base ), | 
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| [e8032b0] | 81 | idTable(), typeTable(), structTable(), enumTable(), unionTable(), traitTable() {} | 
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|  | 82 | unsigned long refCount;   ///< Number of references to these tables | 
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| [52c2a72] | 83 | unsigned long scope;      ///< Scope these tables are associated with | 
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| [e8032b0] | 84 | unsigned long size;       ///< Number of elements stored in this table | 
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|  | 85 | const Indexer base;       ///< Base indexer this extends | 
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| [743fbda] | 86 |  | 
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| [e8032b0] | 87 | IdTable idTable;          ///< Identifier namespace | 
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|  | 88 | TypeTable typeTable;      ///< Type namespace | 
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|  | 89 | StructTable structTable;  ///< Struct namespace | 
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|  | 90 | EnumTable enumTable;      ///< Enum namespace | 
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|  | 91 | UnionTable unionTable;    ///< Union namespace | 
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|  | 92 | TraitTable traitTable;    ///< Trait namespace | 
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|  | 93 | }; | 
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|  | 94 |  | 
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|  | 95 | Indexer::Impl *Indexer::newRef( Indexer::Impl *toClone ) { | 
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|  | 96 | if ( ! toClone ) return 0; | 
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|  | 97 |  | 
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|  | 98 | // shorten the search chain by skipping empty links | 
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|  | 99 | Indexer::Impl *ret = toClone->size == 0 ? toClone->base.tables : toClone; | 
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|  | 100 | if ( ret ) { ++ret->refCount; } | 
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|  | 101 |  | 
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|  | 102 | return ret; | 
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|  | 103 | } | 
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|  | 104 |  | 
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|  | 105 | void Indexer::deleteRef( Indexer::Impl *toFree ) { | 
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|  | 106 | if ( ! toFree ) return; | 
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|  | 107 |  | 
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|  | 108 | if ( --toFree->refCount == 0 ) delete toFree; | 
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|  | 109 | } | 
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|  | 110 |  | 
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| [1ba88a0] | 111 | void Indexer::removeSpecialOverrides( const std::string &id, std::list< DeclarationWithType * > & out ) const { | 
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| [ee1635c8] | 112 | // only need to perform this step for constructors, destructors, and assignment functions | 
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|  | 113 | if ( ! InitTweak::isCtorDtorAssign( id ) ) return; | 
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| [1ba88a0] | 114 |  | 
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|  | 115 | // helpful data structure | 
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|  | 116 | struct ValueType { | 
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|  | 117 | struct DeclBall { | 
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|  | 118 | FunctionDecl * decl; | 
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|  | 119 | bool isUserDefinedFunc; // properties for this particular decl | 
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| [235114f] | 120 | bool isDefaultCtor; | 
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|  | 121 | bool isDtor; | 
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| [1ba88a0] | 122 | bool isCopyFunc; | 
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|  | 123 | }; | 
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|  | 124 | // properties for this type | 
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| [ff03f5c] | 125 | bool existsUserDefinedFunc = false;    // any user-defined function found | 
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|  | 126 | bool existsUserDefinedCtor = false;    // any user-defined constructor found | 
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|  | 127 | bool existsUserDefinedDtor = false;    // any user-defined destructor found | 
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|  | 128 | bool existsUserDefinedCopyFunc = false;    // user-defined copy ctor found | 
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|  | 129 | bool existsUserDefinedDefaultCtor = false; // user-defined default ctor found | 
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| [1ba88a0] | 130 | std::list< DeclBall > decls; | 
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|  | 131 |  | 
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|  | 132 | // another FunctionDecl for the current type was found - determine | 
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|  | 133 | // if it has special properties and update data structure accordingly | 
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|  | 134 | ValueType & operator+=( FunctionDecl * function ) { | 
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|  | 135 | bool isUserDefinedFunc = ! LinkageSpec::isOverridable( function->get_linkage() ); | 
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| [235114f] | 136 | bool isDefaultCtor = InitTweak::isDefaultConstructor( function ); | 
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|  | 137 | bool isDtor = InitTweak::isDestructor( function ); | 
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| [ee1635c8] | 138 | bool isCopyFunc = InitTweak::isCopyFunction( function, function->get_name() ); | 
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| [235114f] | 139 | decls.push_back( DeclBall{ function, isUserDefinedFunc, isDefaultCtor, isDtor, isCopyFunc } ); | 
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| [ff03f5c] | 140 | existsUserDefinedFunc = existsUserDefinedFunc || isUserDefinedFunc; | 
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|  | 141 | existsUserDefinedCtor = existsUserDefinedCtor || (isUserDefinedFunc && InitTweak::isConstructor( function->get_name() ) ); | 
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|  | 142 | existsUserDefinedDtor = existsUserDefinedDtor || (isUserDefinedFunc && isDtor); | 
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|  | 143 | existsUserDefinedCopyFunc = existsUserDefinedCopyFunc || (isUserDefinedFunc && isCopyFunc); | 
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|  | 144 | existsUserDefinedDefaultCtor = existsUserDefinedDefaultCtor || (isUserDefinedFunc && isDefaultCtor); | 
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| [1ba88a0] | 145 | return *this; | 
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|  | 146 | } | 
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|  | 147 | }; // ValueType | 
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|  | 148 |  | 
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|  | 149 | std::list< DeclarationWithType * > copy; | 
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|  | 150 | copy.splice( copy.end(), out ); | 
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|  | 151 |  | 
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|  | 152 | // organize discovered declarations by type | 
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|  | 153 | std::unordered_map< std::string, ValueType > funcMap; | 
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|  | 154 | for ( DeclarationWithType * decl : copy ) { | 
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|  | 155 | if ( FunctionDecl * function = dynamic_cast< FunctionDecl * >( decl ) ) { | 
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| [8c49c0e] | 156 | std::list< DeclarationWithType * > & params = function->get_functionType()->get_parameters(); | 
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| [1ba88a0] | 157 | assert( ! params.empty() ); | 
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| [24670d2] | 158 | // use base type of pointer, so that qualifiers on the pointer type aren't considered. | 
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|  | 159 | Type * base = safe_dynamic_cast< PointerType * >( params.front()->get_type() )->get_base(); | 
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|  | 160 | funcMap[ Mangler::mangle( base ) ] += function; | 
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| [1ba88a0] | 161 | } else { | 
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|  | 162 | out.push_back( decl ); | 
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|  | 163 | } | 
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|  | 164 | } | 
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|  | 165 |  | 
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| [ff03f5c] | 166 | // if a type contains user defined ctor/dtor/assign, then special rules trigger, which determine | 
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|  | 167 | // the set of ctor/dtor/assign that are seen by the requester. In particular, if the user defines | 
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| [1ba88a0] | 168 | // a default ctor, then the generated default ctor should never be seen, likewise for copy ctor | 
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|  | 169 | // and dtor. If the user defines any ctor/dtor, then no generated field ctors should be seen. | 
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| [ff03f5c] | 170 | // If the user defines any ctor then the generated default ctor should not be seen (intrinsic default | 
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|  | 171 | // ctor must be overridden exactly). | 
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| [1ba88a0] | 172 | for ( std::pair< const std::string, ValueType > & pair : funcMap ) { | 
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|  | 173 | ValueType & val = pair.second; | 
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|  | 174 | for ( ValueType::DeclBall ball : val.decls ) { | 
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| [ff03f5c] | 175 | bool noUserDefinedFunc = ! val.existsUserDefinedFunc; | 
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|  | 176 | bool isUserDefinedFunc = ball.isUserDefinedFunc; | 
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|  | 177 | bool isAcceptableDefaultCtor = (! val.existsUserDefinedCtor || (! val.existsUserDefinedDefaultCtor && ball.decl->get_linkage() == LinkageSpec::Intrinsic)) && ball.isDefaultCtor; // allow default constructors only when no user-defined constructors exist, except in the case of intrinsics, which require exact overrides | 
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|  | 178 | bool isAcceptableCopyFunc = ! val.existsUserDefinedCopyFunc && ball.isCopyFunc; // handles copy ctor and assignment operator | 
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|  | 179 | bool isAcceptableDtor = ! val.existsUserDefinedDtor && ball.isDtor; | 
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|  | 180 | if ( noUserDefinedFunc || isUserDefinedFunc || isAcceptableDefaultCtor || isAcceptableCopyFunc || isAcceptableDtor ) { | 
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| [1ba88a0] | 181 | // decl conforms to the rules described above, so it should be seen by the requester | 
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|  | 182 | out.push_back( ball.decl ); | 
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|  | 183 | } | 
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|  | 184 | } | 
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|  | 185 | } | 
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|  | 186 | } | 
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|  | 187 |  | 
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| [e8032b0] | 188 | void Indexer::makeWritable() { | 
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|  | 189 | if ( ! tables ) { | 
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| [52c2a72] | 190 | // create indexer if not yet set | 
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|  | 191 | tables = new Indexer::Impl( scope ); | 
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|  | 192 | } else if ( tables->refCount > 1 || tables->scope != scope ) { | 
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|  | 193 | // make this indexer the base of a fresh indexer at the current scope | 
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|  | 194 | tables = new Indexer::Impl( scope, std::move( *this ) ); | 
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| [e8032b0] | 195 | } | 
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|  | 196 | } | 
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|  | 197 |  | 
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| [52c2a72] | 198 | Indexer::Indexer( bool _doDebug ) : tables( 0 ), scope( 0 ), doDebug( _doDebug ) {} | 
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| [e8032b0] | 199 |  | 
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| [52c2a72] | 200 | Indexer::Indexer( const Indexer &that ) : tables( newRef( that.tables ) ), scope( that.scope ), doDebug( that.doDebug ) {} | 
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| [e8032b0] | 201 |  | 
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| [52c2a72] | 202 | Indexer::Indexer( Indexer &&that ) : tables( that.tables ), scope( that.scope ), doDebug( that.doDebug ) { | 
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| [e8032b0] | 203 | that.tables = 0; | 
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|  | 204 | } | 
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|  | 205 |  | 
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|  | 206 | Indexer::~Indexer() { | 
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|  | 207 | deleteRef( tables ); | 
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|  | 208 | } | 
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|  | 209 |  | 
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|  | 210 | Indexer& Indexer::operator= ( const Indexer &that ) { | 
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|  | 211 | deleteRef( tables ); | 
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|  | 212 |  | 
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|  | 213 | tables = newRef( that.tables ); | 
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| [52c2a72] | 214 | scope = that.scope; | 
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| [e8032b0] | 215 | doDebug = that.doDebug; | 
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|  | 216 |  | 
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|  | 217 | return *this; | 
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|  | 218 | } | 
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|  | 219 |  | 
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|  | 220 | Indexer& Indexer::operator= ( Indexer &&that ) { | 
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|  | 221 | deleteRef( tables ); | 
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|  | 222 |  | 
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|  | 223 | tables = that.tables; | 
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| [52c2a72] | 224 | scope = that.scope; | 
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| [e8032b0] | 225 | doDebug = that.doDebug; | 
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| [17cd4eb] | 226 |  | 
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| [e8032b0] | 227 | that.tables = 0; | 
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|  | 228 |  | 
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|  | 229 | return *this; | 
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|  | 230 | } | 
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| [17cd4eb] | 231 |  | 
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| [a08ba92] | 232 | void Indexer::visit( ObjectDecl *objectDecl ) { | 
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| [ae4c85a] | 233 | enterScope(); | 
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| [0dd3a2f] | 234 | maybeAccept( objectDecl->get_type(), *this ); | 
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| [ae4c85a] | 235 | leaveScope(); | 
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| [0dd3a2f] | 236 | maybeAccept( objectDecl->get_init(), *this ); | 
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|  | 237 | maybeAccept( objectDecl->get_bitfieldWidth(), *this ); | 
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|  | 238 | if ( objectDecl->get_name() != "" ) { | 
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|  | 239 | debugPrint( "Adding object " << objectDecl->get_name() << std::endl ); | 
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| [e8032b0] | 240 | addId( objectDecl ); | 
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| [0dd3a2f] | 241 | } // if | 
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| [a08ba92] | 242 | } | 
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| [17cd4eb] | 243 |  | 
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| [a08ba92] | 244 | void Indexer::visit( FunctionDecl *functionDecl ) { | 
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| [0dd3a2f] | 245 | if ( functionDecl->get_name() == "" ) return; | 
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|  | 246 | debugPrint( "Adding function " << functionDecl->get_name() << std::endl ); | 
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| [e8032b0] | 247 | addId( functionDecl ); | 
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| [0dd3a2f] | 248 | enterScope(); | 
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|  | 249 | maybeAccept( functionDecl->get_functionType(), *this ); | 
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|  | 250 | maybeAccept( functionDecl->get_statements(), *this ); | 
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|  | 251 | leaveScope(); | 
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| [a08ba92] | 252 | } | 
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| [51b73452] | 253 |  | 
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| [44b5ca0] | 254 |  | 
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|  | 255 | // A NOTE ON THE ORDER OF TRAVERSAL | 
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|  | 256 | // | 
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|  | 257 | // 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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|  | 258 | // no such thing as a recursive type or typedef. | 
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|  | 259 | // | 
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|  | 260 | //             typedef struct { T *x; } T; // never allowed | 
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|  | 261 | // | 
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|  | 262 | // 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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|  | 263 | // members are traversed, and then the complete type should be added (assuming the type is completed by this particular | 
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|  | 264 | // declaration). | 
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|  | 265 | // | 
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|  | 266 | //             struct T { struct T *x; }; // allowed | 
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|  | 267 | // | 
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|  | 268 | // 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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|  | 269 | // traversal may modify the definition of the type and these modifications should be visible when the symbol table is | 
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|  | 270 | // queried later in this pass. | 
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|  | 271 | // | 
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|  | 272 | // TODO: figure out whether recursive contexts are sensible/possible/reasonable. | 
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|  | 273 |  | 
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| [51b73452] | 274 |  | 
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| [a08ba92] | 275 | void Indexer::visit( TypeDecl *typeDecl ) { | 
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| [0dd3a2f] | 276 | // see A NOTE ON THE ORDER OF TRAVERSAL, above | 
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| [44b5ca0] | 277 | // 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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|  | 278 | // and may depend on the type itself | 
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| [0dd3a2f] | 279 | enterScope(); | 
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|  | 280 | acceptAll( typeDecl->get_parameters(), *this ); | 
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|  | 281 | maybeAccept( typeDecl->get_base(), *this ); | 
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|  | 282 | leaveScope(); | 
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|  | 283 | debugPrint( "Adding type " << typeDecl->get_name() << std::endl ); | 
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| [e8032b0] | 284 | addType( typeDecl ); | 
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| [0dd3a2f] | 285 | acceptAll( typeDecl->get_assertions(), *this ); | 
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| [67cf18c] | 286 | acceptNewScope( typeDecl->get_init(), *this ); | 
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| [a08ba92] | 287 | } | 
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| [17cd4eb] | 288 |  | 
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| [a08ba92] | 289 | void Indexer::visit( TypedefDecl *typeDecl ) { | 
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| [0dd3a2f] | 290 | enterScope(); | 
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|  | 291 | acceptAll( typeDecl->get_parameters(), *this ); | 
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|  | 292 | maybeAccept( typeDecl->get_base(), *this ); | 
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|  | 293 | leaveScope(); | 
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|  | 294 | debugPrint( "Adding typedef " << typeDecl->get_name() << std::endl ); | 
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| [e8032b0] | 295 | addType( typeDecl ); | 
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| [a08ba92] | 296 | } | 
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| [17cd4eb] | 297 |  | 
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| [a08ba92] | 298 | void Indexer::visit( StructDecl *aggregateDecl ) { | 
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| [0dd3a2f] | 299 | // make up a forward declaration and add it before processing the members | 
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| [743fbda] | 300 | // needs to be on the heap because addStruct saves the pointer | 
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|  | 301 | StructDecl &fwdDecl = *new StructDecl( aggregateDecl->get_name() ); | 
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| [0dd3a2f] | 302 | cloneAll( aggregateDecl->get_parameters(), fwdDecl.get_parameters() ); | 
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|  | 303 | debugPrint( "Adding fwd decl for struct " << fwdDecl.get_name() << std::endl ); | 
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| [e8032b0] | 304 | addStruct( &fwdDecl ); | 
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| [743fbda] | 305 |  | 
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| [0dd3a2f] | 306 | enterScope(); | 
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|  | 307 | acceptAll( aggregateDecl->get_parameters(), *this ); | 
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|  | 308 | acceptAll( aggregateDecl->get_members(), *this ); | 
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|  | 309 | leaveScope(); | 
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| [743fbda] | 310 |  | 
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| [0dd3a2f] | 311 | debugPrint( "Adding struct " << aggregateDecl->get_name() << std::endl ); | 
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|  | 312 | // this addition replaces the forward declaration | 
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| [e8032b0] | 313 | addStruct( aggregateDecl ); | 
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| [a08ba92] | 314 | } | 
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| [17cd4eb] | 315 |  | 
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| [a08ba92] | 316 | void Indexer::visit( UnionDecl *aggregateDecl ) { | 
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| [0dd3a2f] | 317 | // make up a forward declaration and add it before processing the members | 
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|  | 318 | UnionDecl fwdDecl( aggregateDecl->get_name() ); | 
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|  | 319 | cloneAll( aggregateDecl->get_parameters(), fwdDecl.get_parameters() ); | 
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|  | 320 | debugPrint( "Adding fwd decl for union " << fwdDecl.get_name() << std::endl ); | 
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| [e8032b0] | 321 | addUnion( &fwdDecl ); | 
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| [743fbda] | 322 |  | 
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| [0dd3a2f] | 323 | enterScope(); | 
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|  | 324 | acceptAll( aggregateDecl->get_parameters(), *this ); | 
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|  | 325 | acceptAll( aggregateDecl->get_members(), *this ); | 
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|  | 326 | leaveScope(); | 
|---|
| [743fbda] | 327 |  | 
|---|
| [0dd3a2f] | 328 | debugPrint( "Adding union " << aggregateDecl->get_name() << std::endl ); | 
|---|
| [e8032b0] | 329 | addUnion( aggregateDecl ); | 
|---|
| [a08ba92] | 330 | } | 
|---|
| [17cd4eb] | 331 |  | 
|---|
| [a08ba92] | 332 | void Indexer::visit( EnumDecl *aggregateDecl ) { | 
|---|
| [0dd3a2f] | 333 | debugPrint( "Adding enum " << aggregateDecl->get_name() << std::endl ); | 
|---|
| [e8032b0] | 334 | addEnum( aggregateDecl ); | 
|---|
| [0dd3a2f] | 335 | // unlike structs, contexts, and unions, enums inject their members into the global scope | 
|---|
|  | 336 | acceptAll( aggregateDecl->get_members(), *this ); | 
|---|
| [a08ba92] | 337 | } | 
|---|
| [17cd4eb] | 338 |  | 
|---|
| [4040425] | 339 | void Indexer::visit( TraitDecl *aggregateDecl ) { | 
|---|
| [0dd3a2f] | 340 | enterScope(); | 
|---|
|  | 341 | acceptAll( aggregateDecl->get_parameters(), *this ); | 
|---|
|  | 342 | acceptAll( aggregateDecl->get_members(), *this ); | 
|---|
|  | 343 | leaveScope(); | 
|---|
| [743fbda] | 344 |  | 
|---|
| [0dd3a2f] | 345 | debugPrint( "Adding context " << aggregateDecl->get_name() << std::endl ); | 
|---|
| [e8032b0] | 346 | addTrait( aggregateDecl ); | 
|---|
| [a08ba92] | 347 | } | 
|---|
| [17cd4eb] | 348 |  | 
|---|
| [a08ba92] | 349 | void Indexer::visit( CompoundStmt *compoundStmt ) { | 
|---|
| [0dd3a2f] | 350 | enterScope(); | 
|---|
|  | 351 | acceptAll( compoundStmt->get_kids(), *this ); | 
|---|
|  | 352 | leaveScope(); | 
|---|
| [a08ba92] | 353 | } | 
|---|
| [17cd4eb] | 354 |  | 
|---|
| [ae4c85a] | 355 |  | 
|---|
|  | 356 | void Indexer::visit( ApplicationExpr *applicationExpr ) { | 
|---|
| [906e24d] | 357 | acceptNewScope( applicationExpr->get_result(), *this ); | 
|---|
| [ae4c85a] | 358 | maybeAccept( applicationExpr->get_function(), *this ); | 
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|  | 359 | acceptAll( applicationExpr->get_args(), *this ); | 
|---|
|  | 360 | } | 
|---|
|  | 361 |  | 
|---|
|  | 362 | void Indexer::visit( UntypedExpr *untypedExpr ) { | 
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| [906e24d] | 363 | acceptNewScope( untypedExpr->get_result(), *this ); | 
|---|
| [ae4c85a] | 364 | acceptAll( untypedExpr->get_args(), *this ); | 
|---|
|  | 365 | } | 
|---|
|  | 366 |  | 
|---|
|  | 367 | void Indexer::visit( NameExpr *nameExpr ) { | 
|---|
| [906e24d] | 368 | acceptNewScope( nameExpr->get_result(), *this ); | 
|---|
| [ae4c85a] | 369 | } | 
|---|
|  | 370 |  | 
|---|
|  | 371 | void Indexer::visit( AddressExpr *addressExpr ) { | 
|---|
| [906e24d] | 372 | acceptNewScope( addressExpr->get_result(), *this ); | 
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| [ae4c85a] | 373 | maybeAccept( addressExpr->get_arg(), *this ); | 
|---|
|  | 374 | } | 
|---|
|  | 375 |  | 
|---|
|  | 376 | void Indexer::visit( LabelAddressExpr *labAddressExpr ) { | 
|---|
| [906e24d] | 377 | acceptNewScope( labAddressExpr->get_result(), *this ); | 
|---|
| [ae4c85a] | 378 | maybeAccept( labAddressExpr->get_arg(), *this ); | 
|---|
|  | 379 | } | 
|---|
|  | 380 |  | 
|---|
|  | 381 | void Indexer::visit( CastExpr *castExpr ) { | 
|---|
| [906e24d] | 382 | acceptNewScope( castExpr->get_result(), *this ); | 
|---|
| [ae4c85a] | 383 | maybeAccept( castExpr->get_arg(), *this ); | 
|---|
|  | 384 | } | 
|---|
|  | 385 |  | 
|---|
|  | 386 | void Indexer::visit( UntypedMemberExpr *memberExpr ) { | 
|---|
| [906e24d] | 387 | acceptNewScope( memberExpr->get_result(), *this ); | 
|---|
| [ae4c85a] | 388 | maybeAccept( memberExpr->get_aggregate(), *this ); | 
|---|
|  | 389 | } | 
|---|
|  | 390 |  | 
|---|
|  | 391 | void Indexer::visit( MemberExpr *memberExpr ) { | 
|---|
| [906e24d] | 392 | acceptNewScope( memberExpr->get_result(), *this ); | 
|---|
| [ae4c85a] | 393 | maybeAccept( memberExpr->get_aggregate(), *this ); | 
|---|
|  | 394 | } | 
|---|
|  | 395 |  | 
|---|
|  | 396 | void Indexer::visit( VariableExpr *variableExpr ) { | 
|---|
| [906e24d] | 397 | acceptNewScope( variableExpr->get_result(), *this ); | 
|---|
| [ae4c85a] | 398 | } | 
|---|
|  | 399 |  | 
|---|
|  | 400 | void Indexer::visit( ConstantExpr *constantExpr ) { | 
|---|
| [906e24d] | 401 | acceptNewScope( constantExpr->get_result(), *this ); | 
|---|
| [ae4c85a] | 402 | maybeAccept( constantExpr->get_constant(), *this ); | 
|---|
|  | 403 | } | 
|---|
|  | 404 |  | 
|---|
|  | 405 | void Indexer::visit( SizeofExpr *sizeofExpr ) { | 
|---|
| [906e24d] | 406 | acceptNewScope( sizeofExpr->get_result(), *this ); | 
|---|
| [ae4c85a] | 407 | if ( sizeofExpr->get_isType() ) { | 
|---|
|  | 408 | maybeAccept( sizeofExpr->get_type(), *this ); | 
|---|
|  | 409 | } else { | 
|---|
|  | 410 | maybeAccept( sizeofExpr->get_expr(), *this ); | 
|---|
|  | 411 | } | 
|---|
|  | 412 | } | 
|---|
|  | 413 |  | 
|---|
| [47534159] | 414 | void Indexer::visit( AlignofExpr *alignofExpr ) { | 
|---|
| [906e24d] | 415 | acceptNewScope( alignofExpr->get_result(), *this ); | 
|---|
| [47534159] | 416 | if ( alignofExpr->get_isType() ) { | 
|---|
|  | 417 | maybeAccept( alignofExpr->get_type(), *this ); | 
|---|
|  | 418 | } else { | 
|---|
|  | 419 | maybeAccept( alignofExpr->get_expr(), *this ); | 
|---|
|  | 420 | } | 
|---|
|  | 421 | } | 
|---|
|  | 422 |  | 
|---|
| [2a4b088] | 423 | void Indexer::visit( UntypedOffsetofExpr *offsetofExpr ) { | 
|---|
| [906e24d] | 424 | acceptNewScope( offsetofExpr->get_result(), *this ); | 
|---|
| [2a4b088] | 425 | maybeAccept( offsetofExpr->get_type(), *this ); | 
|---|
|  | 426 | } | 
|---|
|  | 427 |  | 
|---|
| [25a054f] | 428 | void Indexer::visit( OffsetofExpr *offsetofExpr ) { | 
|---|
| [906e24d] | 429 | acceptNewScope( offsetofExpr->get_result(), *this ); | 
|---|
| [25a054f] | 430 | maybeAccept( offsetofExpr->get_type(), *this ); | 
|---|
|  | 431 | maybeAccept( offsetofExpr->get_member(), *this ); | 
|---|
|  | 432 | } | 
|---|
|  | 433 |  | 
|---|
| [afc1045] | 434 | void Indexer::visit( OffsetPackExpr *offsetPackExpr ) { | 
|---|
| [906e24d] | 435 | acceptNewScope( offsetPackExpr->get_result(), *this ); | 
|---|
| [afc1045] | 436 | maybeAccept( offsetPackExpr->get_type(), *this ); | 
|---|
|  | 437 | } | 
|---|
|  | 438 |  | 
|---|
| [ae4c85a] | 439 | void Indexer::visit( AttrExpr *attrExpr ) { | 
|---|
| [906e24d] | 440 | acceptNewScope( attrExpr->get_result(), *this ); | 
|---|
| [ae4c85a] | 441 | if ( attrExpr->get_isType() ) { | 
|---|
|  | 442 | maybeAccept( attrExpr->get_type(), *this ); | 
|---|
|  | 443 | } else { | 
|---|
|  | 444 | maybeAccept( attrExpr->get_expr(), *this ); | 
|---|
|  | 445 | } | 
|---|
|  | 446 | } | 
|---|
|  | 447 |  | 
|---|
|  | 448 | void Indexer::visit( LogicalExpr *logicalExpr ) { | 
|---|
| [906e24d] | 449 | acceptNewScope( logicalExpr->get_result(), *this ); | 
|---|
| [ae4c85a] | 450 | maybeAccept( logicalExpr->get_arg1(), *this ); | 
|---|
|  | 451 | maybeAccept( logicalExpr->get_arg2(), *this ); | 
|---|
|  | 452 | } | 
|---|
|  | 453 |  | 
|---|
|  | 454 | void Indexer::visit( ConditionalExpr *conditionalExpr ) { | 
|---|
| [906e24d] | 455 | acceptNewScope( conditionalExpr->get_result(), *this ); | 
|---|
| [ae4c85a] | 456 | maybeAccept( conditionalExpr->get_arg1(), *this ); | 
|---|
|  | 457 | maybeAccept( conditionalExpr->get_arg2(), *this ); | 
|---|
|  | 458 | maybeAccept( conditionalExpr->get_arg3(), *this ); | 
|---|
|  | 459 | } | 
|---|
|  | 460 |  | 
|---|
|  | 461 | void Indexer::visit( CommaExpr *commaExpr ) { | 
|---|
| [906e24d] | 462 | acceptNewScope( commaExpr->get_result(), *this ); | 
|---|
| [ae4c85a] | 463 | maybeAccept( commaExpr->get_arg1(), *this ); | 
|---|
|  | 464 | maybeAccept( commaExpr->get_arg2(), *this ); | 
|---|
|  | 465 | } | 
|---|
|  | 466 |  | 
|---|
|  | 467 | void Indexer::visit( TypeExpr *typeExpr ) { | 
|---|
| [906e24d] | 468 | acceptNewScope( typeExpr->get_result(), *this ); | 
|---|
| [ae4c85a] | 469 | maybeAccept( typeExpr->get_type(), *this ); | 
|---|
|  | 470 | } | 
|---|
|  | 471 |  | 
|---|
|  | 472 | void Indexer::visit( AsmExpr *asmExpr ) { | 
|---|
|  | 473 | maybeAccept( asmExpr->get_inout(), *this ); | 
|---|
|  | 474 | maybeAccept( asmExpr->get_constraint(), *this ); | 
|---|
|  | 475 | maybeAccept( asmExpr->get_operand(), *this ); | 
|---|
|  | 476 | } | 
|---|
|  | 477 |  | 
|---|
| [907eccb] | 478 | void Indexer::visit( ImplicitCopyCtorExpr *impCpCtorExpr ) { | 
|---|
|  | 479 | acceptNewScope( impCpCtorExpr->get_result(), *this ); | 
|---|
|  | 480 | maybeAccept( impCpCtorExpr->get_callExpr(), *this ); | 
|---|
|  | 481 | acceptAll( impCpCtorExpr->get_tempDecls(), *this ); | 
|---|
|  | 482 | acceptAll( impCpCtorExpr->get_returnDecls(), *this ); | 
|---|
|  | 483 | acceptAll( impCpCtorExpr->get_dtors(), *this ); | 
|---|
|  | 484 | } | 
|---|
|  | 485 |  | 
|---|
|  | 486 | void Indexer::visit( ConstructorExpr * ctorExpr ) { | 
|---|
|  | 487 | acceptNewScope( ctorExpr->get_result(), *this ); | 
|---|
|  | 488 | maybeAccept( ctorExpr->get_callExpr(), *this ); | 
|---|
|  | 489 | } | 
|---|
|  | 490 |  | 
|---|
|  | 491 | void Indexer::visit( CompoundLiteralExpr *compLitExpr ) { | 
|---|
|  | 492 | acceptNewScope( compLitExpr->get_result(), *this ); | 
|---|
|  | 493 | maybeAccept( compLitExpr->get_initializer(), *this ); | 
|---|
|  | 494 | } | 
|---|
|  | 495 |  | 
|---|
|  | 496 | void Indexer::visit( RangeExpr *rangeExpr ) { | 
|---|
|  | 497 | maybeAccept( rangeExpr->get_low(), *this ); | 
|---|
|  | 498 | maybeAccept( rangeExpr->get_high(), *this ); | 
|---|
|  | 499 | } | 
|---|
|  | 500 |  | 
|---|
|  | 501 | void Indexer::visit( UntypedTupleExpr *tupleExpr ) { | 
|---|
|  | 502 | acceptNewScope( tupleExpr->get_result(), *this ); | 
|---|
|  | 503 | acceptAll( tupleExpr->get_exprs(), *this ); | 
|---|
|  | 504 | } | 
|---|
|  | 505 |  | 
|---|
|  | 506 | void Indexer::visit( TupleExpr *tupleExpr ) { | 
|---|
|  | 507 | acceptNewScope( tupleExpr->get_result(), *this ); | 
|---|
|  | 508 | acceptAll( tupleExpr->get_exprs(), *this ); | 
|---|
|  | 509 | } | 
|---|
|  | 510 |  | 
|---|
|  | 511 | void Indexer::visit( TupleIndexExpr *tupleExpr ) { | 
|---|
|  | 512 | acceptNewScope( tupleExpr->get_result(), *this ); | 
|---|
|  | 513 | maybeAccept( tupleExpr->get_tuple(), *this ); | 
|---|
|  | 514 | } | 
|---|
|  | 515 |  | 
|---|
|  | 516 | void Indexer::visit( TupleAssignExpr *tupleExpr ) { | 
|---|
|  | 517 | acceptNewScope( tupleExpr->get_result(), *this ); | 
|---|
|  | 518 | maybeAccept( tupleExpr->get_stmtExpr(), *this ); | 
|---|
|  | 519 | } | 
|---|
|  | 520 |  | 
|---|
|  | 521 | void Indexer::visit( StmtExpr *stmtExpr ) { | 
|---|
|  | 522 | acceptNewScope( stmtExpr->get_result(), *this ); | 
|---|
|  | 523 | maybeAccept( stmtExpr->get_statements(), *this ); | 
|---|
|  | 524 | acceptAll( stmtExpr->get_returnDecls(), *this ); | 
|---|
|  | 525 | acceptAll( stmtExpr->get_dtors(), *this ); | 
|---|
|  | 526 | } | 
|---|
|  | 527 |  | 
|---|
|  | 528 | void Indexer::visit( UniqueExpr *uniqueExpr ) { | 
|---|
|  | 529 | acceptNewScope( uniqueExpr->get_result(), *this ); | 
|---|
|  | 530 | maybeAccept( uniqueExpr->get_expr(), *this ); | 
|---|
|  | 531 | } | 
|---|
|  | 532 |  | 
|---|
| [ae4c85a] | 533 |  | 
|---|
| [4040425] | 534 | void Indexer::visit( TraitInstType *contextInst ) { | 
|---|
| [0dd3a2f] | 535 | acceptAll( contextInst->get_parameters(), *this ); | 
|---|
|  | 536 | acceptAll( contextInst->get_members(), *this ); | 
|---|
| [a08ba92] | 537 | } | 
|---|
| [17cd4eb] | 538 |  | 
|---|
| [a08ba92] | 539 | void Indexer::visit( StructInstType *structInst ) { | 
|---|
| [e8032b0] | 540 | if ( ! lookupStruct( structInst->get_name() ) ) { | 
|---|
| [0dd3a2f] | 541 | debugPrint( "Adding struct " << structInst->get_name() << " from implicit forward declaration" << std::endl ); | 
|---|
| [e8032b0] | 542 | addStruct( structInst->get_name() ); | 
|---|
| [0dd3a2f] | 543 | } | 
|---|
|  | 544 | enterScope(); | 
|---|
|  | 545 | acceptAll( structInst->get_parameters(), *this ); | 
|---|
|  | 546 | leaveScope(); | 
|---|
| [a08ba92] | 547 | } | 
|---|
| [17cd4eb] | 548 |  | 
|---|
| [a08ba92] | 549 | void Indexer::visit( UnionInstType *unionInst ) { | 
|---|
| [e8032b0] | 550 | if ( ! lookupUnion( unionInst->get_name() ) ) { | 
|---|
| [0dd3a2f] | 551 | debugPrint( "Adding union " << unionInst->get_name() << " from implicit forward declaration" << std::endl ); | 
|---|
| [e8032b0] | 552 | addUnion( unionInst->get_name() ); | 
|---|
| [0dd3a2f] | 553 | } | 
|---|
|  | 554 | enterScope(); | 
|---|
|  | 555 | acceptAll( unionInst->get_parameters(), *this ); | 
|---|
|  | 556 | leaveScope(); | 
|---|
| [a08ba92] | 557 | } | 
|---|
| [17cd4eb] | 558 |  | 
|---|
| [a08ba92] | 559 | void Indexer::visit( ForStmt *forStmt ) { | 
|---|
|  | 560 | // for statements introduce a level of scope | 
|---|
|  | 561 | enterScope(); | 
|---|
|  | 562 | Visitor::visit( forStmt ); | 
|---|
|  | 563 | leaveScope(); | 
|---|
|  | 564 | } | 
|---|
| [d4778a6] | 565 |  | 
|---|
| [743fbda] | 566 |  | 
|---|
| [d4778a6] | 567 |  | 
|---|
| [bed4c63e] | 568 | void Indexer::lookupId( const std::string &id, std::list< DeclarationWithType* > &out ) const { | 
|---|
| [5447e09] | 569 | std::unordered_set< std::string > foundMangleNames; | 
|---|
| [743fbda] | 570 |  | 
|---|
| [5447e09] | 571 | Indexer::Impl *searchTables = tables; | 
|---|
|  | 572 | while ( searchTables ) { | 
|---|
|  | 573 |  | 
|---|
|  | 574 | IdTable::const_iterator decls = searchTables->idTable.find( id ); | 
|---|
|  | 575 | if ( decls != searchTables->idTable.end() ) { | 
|---|
|  | 576 | const MangleTable &mangleTable = decls->second; | 
|---|
|  | 577 | for ( MangleTable::const_iterator decl = mangleTable.begin(); decl != mangleTable.end(); ++decl ) { | 
|---|
|  | 578 | // mark the mangled name as found, skipping this insertion if a declaration for that name has already been found | 
|---|
|  | 579 | if ( foundMangleNames.insert( decl->first ).second == false ) continue; | 
|---|
| [743fbda] | 580 |  | 
|---|
| [5447e09] | 581 | out.push_back( decl->second ); | 
|---|
|  | 582 | } | 
|---|
| [bed4c63e] | 583 | } | 
|---|
| [743fbda] | 584 |  | 
|---|
| [5447e09] | 585 | // get declarations from base indexers | 
|---|
|  | 586 | searchTables = searchTables->base.tables; | 
|---|
| [bed4c63e] | 587 | } | 
|---|
| [1ba88a0] | 588 |  | 
|---|
|  | 589 | // some special functions, e.g. constructors and destructors | 
|---|
|  | 590 | // remove autogenerated functions when they are defined so that | 
|---|
|  | 591 | // they can never be matched | 
|---|
|  | 592 | removeSpecialOverrides( id, out ); | 
|---|
| [a08ba92] | 593 | } | 
|---|
| [bdd516a] | 594 |  | 
|---|
| [a08ba92] | 595 | NamedTypeDecl *Indexer::lookupType( const std::string &id ) const { | 
|---|
| [e8032b0] | 596 | if ( ! tables ) return 0; | 
|---|
|  | 597 |  | 
|---|
| [52c2a72] | 598 | TypeTable::const_iterator ret = tables->typeTable.find( id ); | 
|---|
|  | 599 | return ret != tables->typeTable.end() ? ret->second : tables->base.lookupType( id ); | 
|---|
| [a08ba92] | 600 | } | 
|---|
| [17cd4eb] | 601 |  | 
|---|
| [a08ba92] | 602 | StructDecl *Indexer::lookupStruct( const std::string &id ) const { | 
|---|
| [e8032b0] | 603 | if ( ! tables ) return 0; | 
|---|
|  | 604 |  | 
|---|
| [52c2a72] | 605 | StructTable::const_iterator ret = tables->structTable.find( id ); | 
|---|
|  | 606 | return ret != tables->structTable.end() ? ret->second : tables->base.lookupStruct( id ); | 
|---|
| [a08ba92] | 607 | } | 
|---|
| [17cd4eb] | 608 |  | 
|---|
| [a08ba92] | 609 | EnumDecl *Indexer::lookupEnum( const std::string &id ) const { | 
|---|
| [e8032b0] | 610 | if ( ! tables ) return 0; | 
|---|
|  | 611 |  | 
|---|
| [52c2a72] | 612 | EnumTable::const_iterator ret = tables->enumTable.find( id ); | 
|---|
|  | 613 | return ret != tables->enumTable.end() ? ret->second : tables->base.lookupEnum( id ); | 
|---|
| [a08ba92] | 614 | } | 
|---|
| [17cd4eb] | 615 |  | 
|---|
| [a08ba92] | 616 | UnionDecl *Indexer::lookupUnion( const std::string &id ) const { | 
|---|
| [e8032b0] | 617 | if ( ! tables ) return 0; | 
|---|
|  | 618 |  | 
|---|
| [52c2a72] | 619 | UnionTable::const_iterator ret = tables->unionTable.find( id ); | 
|---|
|  | 620 | return ret != tables->unionTable.end() ? ret->second : tables->base.lookupUnion( id ); | 
|---|
| [e8032b0] | 621 | } | 
|---|
|  | 622 |  | 
|---|
|  | 623 | TraitDecl *Indexer::lookupTrait( const std::string &id ) const { | 
|---|
|  | 624 | if ( ! tables ) return 0; | 
|---|
|  | 625 |  | 
|---|
| [52c2a72] | 626 | TraitTable::const_iterator ret = tables->traitTable.find( id ); | 
|---|
|  | 627 | return ret != tables->traitTable.end() ? ret->second : tables->base.lookupTrait( id ); | 
|---|
|  | 628 | } | 
|---|
|  | 629 |  | 
|---|
| [bed4c63e] | 630 | DeclarationWithType *Indexer::lookupIdAtScope( const std::string &id, const std::string &mangleName, unsigned long scope ) const { | 
|---|
|  | 631 | if ( ! tables ) return 0; | 
|---|
|  | 632 | if ( tables->scope < scope ) return 0; | 
|---|
|  | 633 |  | 
|---|
|  | 634 | IdTable::const_iterator decls = tables->idTable.find( id ); | 
|---|
|  | 635 | if ( decls != tables->idTable.end() ) { | 
|---|
|  | 636 | const MangleTable &mangleTable = decls->second; | 
|---|
|  | 637 | MangleTable::const_iterator decl = mangleTable.find( mangleName ); | 
|---|
|  | 638 | if ( decl != mangleTable.end() ) return decl->second; | 
|---|
|  | 639 | } | 
|---|
|  | 640 |  | 
|---|
|  | 641 | return tables->base.lookupIdAtScope( id, mangleName, scope ); | 
|---|
|  | 642 | } | 
|---|
|  | 643 |  | 
|---|
| [09d1ad0] | 644 | bool Indexer::hasIncompatibleCDecl( const std::string &id, const std::string &mangleName, unsigned long scope ) const { | 
|---|
| [bed4c63e] | 645 | if ( ! tables ) return false; | 
|---|
| [09d1ad0] | 646 | if ( tables->scope < scope ) return false; | 
|---|
| [bed4c63e] | 647 |  | 
|---|
|  | 648 | IdTable::const_iterator decls = tables->idTable.find( id ); | 
|---|
|  | 649 | if ( decls != tables->idTable.end() ) { | 
|---|
|  | 650 | const MangleTable &mangleTable = decls->second; | 
|---|
|  | 651 | for ( MangleTable::const_iterator decl = mangleTable.begin(); decl != mangleTable.end(); ++decl ) { | 
|---|
| [4e06c1e] | 652 | // check for C decls with the same name, skipping those with a compatible type (by mangleName) | 
|---|
| [307a732] | 653 | if ( ! LinkageSpec::isMangled( decl->second->get_linkage() ) && decl->first != mangleName ) return true; | 
|---|
| [bed4c63e] | 654 | } | 
|---|
|  | 655 | } | 
|---|
|  | 656 |  | 
|---|
| [09d1ad0] | 657 | return tables->base.hasIncompatibleCDecl( id, mangleName, scope ); | 
|---|
| [bed4c63e] | 658 | } | 
|---|
| [743fbda] | 659 |  | 
|---|
| [8884112] | 660 | bool Indexer::hasCompatibleCDecl( const std::string &id, const std::string &mangleName, unsigned long scope ) const { | 
|---|
|  | 661 | if ( ! tables ) return false; | 
|---|
|  | 662 | if ( tables->scope < scope ) return false; | 
|---|
|  | 663 |  | 
|---|
|  | 664 | IdTable::const_iterator decls = tables->idTable.find( id ); | 
|---|
|  | 665 | if ( decls != tables->idTable.end() ) { | 
|---|
|  | 666 | const MangleTable &mangleTable = decls->second; | 
|---|
|  | 667 | for ( MangleTable::const_iterator decl = mangleTable.begin(); decl != mangleTable.end(); ++decl ) { | 
|---|
|  | 668 | // check for C decls with the same name, skipping | 
|---|
|  | 669 | // those with an incompatible type (by mangleName) | 
|---|
| [307a732] | 670 | if ( ! LinkageSpec::isMangled( decl->second->get_linkage() ) && decl->first == mangleName ) return true; | 
|---|
| [8884112] | 671 | } | 
|---|
|  | 672 | } | 
|---|
|  | 673 |  | 
|---|
|  | 674 | return tables->base.hasCompatibleCDecl( id, mangleName, scope ); | 
|---|
|  | 675 | } | 
|---|
|  | 676 |  | 
|---|
| [52c2a72] | 677 | NamedTypeDecl *Indexer::lookupTypeAtScope( const std::string &id, unsigned long scope ) const { | 
|---|
|  | 678 | if ( ! tables ) return 0; | 
|---|
|  | 679 | if ( tables->scope < scope ) return 0; | 
|---|
|  | 680 |  | 
|---|
|  | 681 | TypeTable::const_iterator ret = tables->typeTable.find( id ); | 
|---|
|  | 682 | return ret != tables->typeTable.end() ? ret->second : tables->base.lookupTypeAtScope( id, scope ); | 
|---|
|  | 683 | } | 
|---|
| [743fbda] | 684 |  | 
|---|
| [52c2a72] | 685 | StructDecl *Indexer::lookupStructAtScope( const std::string &id, unsigned long scope ) const { | 
|---|
|  | 686 | if ( ! tables ) return 0; | 
|---|
|  | 687 | if ( tables->scope < scope ) return 0; | 
|---|
|  | 688 |  | 
|---|
|  | 689 | StructTable::const_iterator ret = tables->structTable.find( id ); | 
|---|
|  | 690 | return ret != tables->structTable.end() ? ret->second : tables->base.lookupStructAtScope( id, scope ); | 
|---|
|  | 691 | } | 
|---|
| [743fbda] | 692 |  | 
|---|
| [52c2a72] | 693 | EnumDecl *Indexer::lookupEnumAtScope( const std::string &id, unsigned long scope ) const { | 
|---|
|  | 694 | if ( ! tables ) return 0; | 
|---|
|  | 695 | if ( tables->scope < scope ) return 0; | 
|---|
|  | 696 |  | 
|---|
|  | 697 | EnumTable::const_iterator ret = tables->enumTable.find( id ); | 
|---|
|  | 698 | return ret != tables->enumTable.end() ? ret->second : tables->base.lookupEnumAtScope( id, scope ); | 
|---|
|  | 699 | } | 
|---|
| [743fbda] | 700 |  | 
|---|
| [52c2a72] | 701 | UnionDecl *Indexer::lookupUnionAtScope( const std::string &id, unsigned long scope ) const { | 
|---|
|  | 702 | if ( ! tables ) return 0; | 
|---|
|  | 703 | if ( tables->scope < scope ) return 0; | 
|---|
|  | 704 |  | 
|---|
|  | 705 | UnionTable::const_iterator ret = tables->unionTable.find( id ); | 
|---|
|  | 706 | return ret != tables->unionTable.end() ? ret->second : tables->base.lookupUnionAtScope( id, scope ); | 
|---|
|  | 707 | } | 
|---|
| [743fbda] | 708 |  | 
|---|
| [52c2a72] | 709 | TraitDecl *Indexer::lookupTraitAtScope( const std::string &id, unsigned long scope ) const { | 
|---|
|  | 710 | if ( ! tables ) return 0; | 
|---|
|  | 711 | if ( tables->scope < scope ) return 0; | 
|---|
|  | 712 |  | 
|---|
|  | 713 | TraitTable::const_iterator ret = tables->traitTable.find( id ); | 
|---|
|  | 714 | return ret != tables->traitTable.end() ? ret->second : tables->base.lookupTraitAtScope( id, scope ); | 
|---|
| [a08ba92] | 715 | } | 
|---|
| [17cd4eb] | 716 |  | 
|---|
| [bed4c63e] | 717 | bool addedIdConflicts( DeclarationWithType *existing, DeclarationWithType *added ) { | 
|---|
|  | 718 | // if we're giving the same name mangling to things of different types then there is something wrong | 
|---|
|  | 719 | assert( (dynamic_cast<ObjectDecl*>( added ) && dynamic_cast<ObjectDecl*>( existing ) ) | 
|---|
|  | 720 | || (dynamic_cast<FunctionDecl*>( added ) && dynamic_cast<FunctionDecl*>( existing ) ) ); | 
|---|
|  | 721 |  | 
|---|
|  | 722 | if ( LinkageSpec::isOverridable( existing->get_linkage() ) ) { | 
|---|
|  | 723 | // new definition shadows the autogenerated one, even at the same scope | 
|---|
|  | 724 | return false; | 
|---|
| [307a732] | 725 | } else if ( LinkageSpec::isMangled( added->get_linkage() ) || ResolvExpr::typesCompatible( added->get_type(), existing->get_type(), Indexer() ) ) { | 
|---|
| [bed4c63e] | 726 | // typesCompatible doesn't really do the right thing here. When checking compatibility of function types, | 
|---|
|  | 727 | // we should ignore outermost pointer qualifiers, except _Atomic? | 
|---|
|  | 728 | FunctionDecl *newentry = dynamic_cast< FunctionDecl* >( added ); | 
|---|
|  | 729 | FunctionDecl *oldentry = dynamic_cast< FunctionDecl* >( existing ); | 
|---|
|  | 730 | if ( newentry && oldentry ) { | 
|---|
|  | 731 | if ( newentry->get_statements() && oldentry->get_statements() ) { | 
|---|
|  | 732 | throw SemanticError( "duplicate function definition for ", added ); | 
|---|
|  | 733 | } // if | 
|---|
|  | 734 | } else { | 
|---|
|  | 735 | // two objects with the same mangled name defined in the same scope. | 
|---|
|  | 736 | // both objects must be marked extern or both must be intrinsic for this to be okay | 
|---|
|  | 737 | // xxx - perhaps it's actually if either is intrinsic then this is okay? | 
|---|
|  | 738 | //       might also need to be same storage class? | 
|---|
|  | 739 | ObjectDecl *newobj = dynamic_cast< ObjectDecl* >( added ); | 
|---|
|  | 740 | ObjectDecl *oldobj = dynamic_cast< ObjectDecl* >( existing ); | 
|---|
| [08d5507b] | 741 | if ( ! newobj->get_storageClasses().is_extern && ! oldobj->get_storageClasses().is_extern ) { | 
|---|
| [bed4c63e] | 742 | throw SemanticError( "duplicate object definition for ", added ); | 
|---|
|  | 743 | } // if | 
|---|
|  | 744 | } // if | 
|---|
|  | 745 | } else { | 
|---|
|  | 746 | throw SemanticError( "duplicate definition for ", added ); | 
|---|
|  | 747 | } // if | 
|---|
|  | 748 |  | 
|---|
|  | 749 | return true; | 
|---|
|  | 750 | } | 
|---|
| [743fbda] | 751 |  | 
|---|
| [e8032b0] | 752 | void Indexer::addId( DeclarationWithType *decl ) { | 
|---|
|  | 753 | makeWritable(); | 
|---|
| [bed4c63e] | 754 |  | 
|---|
|  | 755 | const std::string &name = decl->get_name(); | 
|---|
|  | 756 | std::string mangleName; | 
|---|
| [6a57da5] | 757 | if ( LinkageSpec::isOverridable( decl->get_linkage() ) ) { | 
|---|
| [bed4c63e] | 758 | // mangle the name without including the appropriate suffix, so overridable routines are placed into the | 
|---|
|  | 759 | // same "bucket" as their user defined versions. | 
|---|
|  | 760 | mangleName = Mangler::mangle( decl, false ); | 
|---|
|  | 761 | } else { | 
|---|
|  | 762 | mangleName = Mangler::mangle( decl ); | 
|---|
|  | 763 | } // if | 
|---|
|  | 764 |  | 
|---|
| [8884112] | 765 | // this ensures that no two declarations with the same unmangled name at the same scope both have C linkage | 
|---|
| [307a732] | 766 | if ( ! LinkageSpec::isMangled( decl->get_linkage() ) ) { | 
|---|
| [8884112] | 767 | // NOTE this is broken in Richard's original code in such a way that it never triggers (it | 
|---|
|  | 768 | // doesn't check decls that have the same manglename, and all C-linkage decls are defined to | 
|---|
|  | 769 | // have their name as their manglename, hence the error can never trigger). | 
|---|
|  | 770 | // The code here is closer to correct, but name mangling would have to be completely | 
|---|
|  | 771 | // isomorphic to C type-compatibility, which it may not be. | 
|---|
|  | 772 | if ( hasIncompatibleCDecl( name, mangleName, scope ) ) { | 
|---|
|  | 773 | throw SemanticError( "conflicting overload of C function ", decl ); | 
|---|
|  | 774 | } | 
|---|
|  | 775 | } else { | 
|---|
|  | 776 | // Check that a Cforall declaration doesn't overload any C declaration | 
|---|
|  | 777 | if ( hasCompatibleCDecl( name, mangleName, scope ) ) { | 
|---|
|  | 778 | throw SemanticError( "Cforall declaration hides C function ", decl ); | 
|---|
|  | 779 | } | 
|---|
| [bed4c63e] | 780 | } | 
|---|
| [8884112] | 781 |  | 
|---|
|  | 782 | // Skip repeat declarations of the same identifier | 
|---|
|  | 783 | DeclarationWithType *existing = lookupIdAtScope( name, mangleName, scope ); | 
|---|
|  | 784 | if ( existing && addedIdConflicts( existing, decl ) ) return; | 
|---|
|  | 785 |  | 
|---|
|  | 786 | // add to indexer | 
|---|
|  | 787 | tables->idTable[ name ][ mangleName ] = decl; | 
|---|
|  | 788 | ++tables->size; | 
|---|
| [e8032b0] | 789 | } | 
|---|
| [52c2a72] | 790 |  | 
|---|
|  | 791 | bool addedTypeConflicts( NamedTypeDecl *existing, NamedTypeDecl *added ) { | 
|---|
|  | 792 | if ( existing->get_base() == 0 ) { | 
|---|
|  | 793 | return false; | 
|---|
|  | 794 | } else if ( added->get_base() == 0 ) { | 
|---|
|  | 795 | return true; | 
|---|
|  | 796 | } else { | 
|---|
|  | 797 | throw SemanticError( "redeclaration of ", added ); | 
|---|
|  | 798 | } | 
|---|
|  | 799 | } | 
|---|
| [743fbda] | 800 |  | 
|---|
| [e8032b0] | 801 | void Indexer::addType( NamedTypeDecl *decl ) { | 
|---|
|  | 802 | makeWritable(); | 
|---|
| [52c2a72] | 803 |  | 
|---|
|  | 804 | const std::string &id = decl->get_name(); | 
|---|
|  | 805 | TypeTable::iterator existing = tables->typeTable.find( id ); | 
|---|
|  | 806 | if ( existing == tables->typeTable.end() ) { | 
|---|
|  | 807 | NamedTypeDecl *parent = tables->base.lookupTypeAtScope( id, scope ); | 
|---|
|  | 808 | if ( ! parent || ! addedTypeConflicts( parent, decl ) ) { | 
|---|
|  | 809 | tables->typeTable.insert( existing, std::make_pair( id, decl ) ); | 
|---|
|  | 810 | ++tables->size; | 
|---|
|  | 811 | } | 
|---|
|  | 812 | } else { | 
|---|
|  | 813 | if ( ! addedTypeConflicts( existing->second, decl ) ) { | 
|---|
|  | 814 | existing->second = decl; | 
|---|
|  | 815 | } | 
|---|
|  | 816 | } | 
|---|
|  | 817 | } | 
|---|
|  | 818 |  | 
|---|
|  | 819 | bool addedDeclConflicts( AggregateDecl *existing, AggregateDecl *added ) { | 
|---|
|  | 820 | if ( existing->get_members().empty() ) { | 
|---|
|  | 821 | return false; | 
|---|
|  | 822 | } else if ( ! added->get_members().empty() ) { | 
|---|
|  | 823 | throw SemanticError( "redeclaration of ", added ); | 
|---|
|  | 824 | } // if | 
|---|
|  | 825 | return true; | 
|---|
| [e8032b0] | 826 | } | 
|---|
|  | 827 |  | 
|---|
|  | 828 | void Indexer::addStruct( const std::string &id ) { | 
|---|
| [52c2a72] | 829 | addStruct( new StructDecl( id ) ); | 
|---|
| [e8032b0] | 830 | } | 
|---|
| [743fbda] | 831 |  | 
|---|
| [e8032b0] | 832 | void Indexer::addStruct( StructDecl *decl ) { | 
|---|
|  | 833 | makeWritable(); | 
|---|
| [52c2a72] | 834 |  | 
|---|
|  | 835 | const std::string &id = decl->get_name(); | 
|---|
|  | 836 | StructTable::iterator existing = tables->structTable.find( id ); | 
|---|
|  | 837 | if ( existing == tables->structTable.end() ) { | 
|---|
|  | 838 | StructDecl *parent = tables->base.lookupStructAtScope( id, scope ); | 
|---|
|  | 839 | if ( ! parent || ! addedDeclConflicts( parent, decl ) ) { | 
|---|
|  | 840 | tables->structTable.insert( existing, std::make_pair( id, decl ) ); | 
|---|
|  | 841 | ++tables->size; | 
|---|
|  | 842 | } | 
|---|
|  | 843 | } else { | 
|---|
|  | 844 | if ( ! addedDeclConflicts( existing->second, decl ) ) { | 
|---|
|  | 845 | existing->second = decl; | 
|---|
|  | 846 | } | 
|---|
|  | 847 | } | 
|---|
| [e8032b0] | 848 | } | 
|---|
| [743fbda] | 849 |  | 
|---|
| [e8032b0] | 850 | void Indexer::addEnum( EnumDecl *decl ) { | 
|---|
|  | 851 | makeWritable(); | 
|---|
| [52c2a72] | 852 |  | 
|---|
|  | 853 | const std::string &id = decl->get_name(); | 
|---|
|  | 854 | EnumTable::iterator existing = tables->enumTable.find( id ); | 
|---|
|  | 855 | if ( existing == tables->enumTable.end() ) { | 
|---|
|  | 856 | EnumDecl *parent = tables->base.lookupEnumAtScope( id, scope ); | 
|---|
|  | 857 | if ( ! parent || ! addedDeclConflicts( parent, decl ) ) { | 
|---|
|  | 858 | tables->enumTable.insert( existing, std::make_pair( id, decl ) ); | 
|---|
|  | 859 | ++tables->size; | 
|---|
|  | 860 | } | 
|---|
|  | 861 | } else { | 
|---|
|  | 862 | if ( ! addedDeclConflicts( existing->second, decl ) ) { | 
|---|
|  | 863 | existing->second = decl; | 
|---|
|  | 864 | } | 
|---|
|  | 865 | } | 
|---|
| [e8032b0] | 866 | } | 
|---|
|  | 867 |  | 
|---|
|  | 868 | void Indexer::addUnion( const std::string &id ) { | 
|---|
| [52c2a72] | 869 | addUnion( new UnionDecl( id ) ); | 
|---|
| [e8032b0] | 870 | } | 
|---|
| [743fbda] | 871 |  | 
|---|
| [e8032b0] | 872 | void Indexer::addUnion( UnionDecl *decl ) { | 
|---|
|  | 873 | makeWritable(); | 
|---|
| [52c2a72] | 874 |  | 
|---|
|  | 875 | const std::string &id = decl->get_name(); | 
|---|
|  | 876 | UnionTable::iterator existing = tables->unionTable.find( id ); | 
|---|
|  | 877 | if ( existing == tables->unionTable.end() ) { | 
|---|
|  | 878 | UnionDecl *parent = tables->base.lookupUnionAtScope( id, scope ); | 
|---|
|  | 879 | if ( ! parent || ! addedDeclConflicts( parent, decl ) ) { | 
|---|
|  | 880 | tables->unionTable.insert( existing, std::make_pair( id, decl ) ); | 
|---|
|  | 881 | ++tables->size; | 
|---|
|  | 882 | } | 
|---|
|  | 883 | } else { | 
|---|
|  | 884 | if ( ! addedDeclConflicts( existing->second, decl ) ) { | 
|---|
|  | 885 | existing->second = decl; | 
|---|
|  | 886 | } | 
|---|
|  | 887 | } | 
|---|
| [e8032b0] | 888 | } | 
|---|
| [743fbda] | 889 |  | 
|---|
| [e8032b0] | 890 | void Indexer::addTrait( TraitDecl *decl ) { | 
|---|
|  | 891 | makeWritable(); | 
|---|
| [52c2a72] | 892 |  | 
|---|
|  | 893 | const std::string &id = decl->get_name(); | 
|---|
|  | 894 | TraitTable::iterator existing = tables->traitTable.find( id ); | 
|---|
|  | 895 | if ( existing == tables->traitTable.end() ) { | 
|---|
|  | 896 | TraitDecl *parent = tables->base.lookupTraitAtScope( id, scope ); | 
|---|
|  | 897 | if ( ! parent || ! addedDeclConflicts( parent, decl ) ) { | 
|---|
|  | 898 | tables->traitTable.insert( existing, std::make_pair( id, decl ) ); | 
|---|
|  | 899 | ++tables->size; | 
|---|
|  | 900 | } | 
|---|
|  | 901 | } else { | 
|---|
|  | 902 | if ( ! addedDeclConflicts( existing->second, decl ) ) { | 
|---|
|  | 903 | existing->second = decl; | 
|---|
|  | 904 | } | 
|---|
|  | 905 | } | 
|---|
| [a08ba92] | 906 | } | 
|---|
| [17cd4eb] | 907 |  | 
|---|
| [a08ba92] | 908 | void Indexer::enterScope() { | 
|---|
| [52c2a72] | 909 | ++scope; | 
|---|
| [743fbda] | 910 |  | 
|---|
| [0dd3a2f] | 911 | if ( doDebug ) { | 
|---|
| [52c2a72] | 912 | std::cout << "--- Entering scope " << scope << std::endl; | 
|---|
| [0dd3a2f] | 913 | } | 
|---|
| [a08ba92] | 914 | } | 
|---|
| [17cd4eb] | 915 |  | 
|---|
| [a08ba92] | 916 | void Indexer::leaveScope() { | 
|---|
| [0dd3a2f] | 917 | using std::cout; | 
|---|
| [52c2a72] | 918 |  | 
|---|
|  | 919 | assert( scope > 0 && "cannot leave initial scope" ); | 
|---|
|  | 920 | --scope; | 
|---|
|  | 921 |  | 
|---|
|  | 922 | while ( tables && tables->scope > scope ) { | 
|---|
|  | 923 | if ( doDebug ) { | 
|---|
|  | 924 | cout << "--- Leaving scope " << tables->scope << " containing" << std::endl; | 
|---|
| [bed4c63e] | 925 | dump( tables->idTable, cout ); | 
|---|
| [52c2a72] | 926 | dump( tables->typeTable, cout ); | 
|---|
|  | 927 | dump( tables->structTable, cout ); | 
|---|
|  | 928 | dump( tables->enumTable, cout ); | 
|---|
|  | 929 | dump( tables->unionTable, cout ); | 
|---|
|  | 930 | dump( tables->traitTable, cout ); | 
|---|
|  | 931 | } | 
|---|
|  | 932 |  | 
|---|
|  | 933 | // swap tables for base table until we find one at an appropriate scope | 
|---|
|  | 934 | Indexer::Impl *base = newRef( tables->base.tables ); | 
|---|
|  | 935 | deleteRef( tables ); | 
|---|
|  | 936 | tables = base; | 
|---|
| [0dd3a2f] | 937 | } | 
|---|
| [a08ba92] | 938 | } | 
|---|
| [17cd4eb] | 939 |  | 
|---|
| [a08ba92] | 940 | void Indexer::print( std::ostream &os, int indent ) const { | 
|---|
|  | 941 | using std::cerr; | 
|---|
| [e8032b0] | 942 |  | 
|---|
| [0cb1d61] | 943 | if ( tables ) { | 
|---|
|  | 944 | os << "--- scope " << tables->scope << " ---" << std::endl; | 
|---|
|  | 945 |  | 
|---|
|  | 946 | os << "===idTable===" << std::endl; | 
|---|
|  | 947 | dump( tables->idTable, os ); | 
|---|
|  | 948 | os << "===typeTable===" << std::endl; | 
|---|
|  | 949 | dump( tables->typeTable, os ); | 
|---|
|  | 950 | os << "===structTable===" << std::endl; | 
|---|
|  | 951 | dump( tables->structTable, os ); | 
|---|
|  | 952 | os << "===enumTable===" << std::endl; | 
|---|
|  | 953 | dump( tables->enumTable, os ); | 
|---|
|  | 954 | os << "===unionTable===" << std::endl; | 
|---|
|  | 955 | dump( tables->unionTable, os ); | 
|---|
|  | 956 | os << "===contextTable===" << std::endl; | 
|---|
|  | 957 | dump( tables->traitTable, os ); | 
|---|
|  | 958 |  | 
|---|
|  | 959 | tables->base.print( os, indent ); | 
|---|
|  | 960 | } else { | 
|---|
|  | 961 | os << "--- end ---" << std::endl; | 
|---|
|  | 962 | } | 
|---|
| [743fbda] | 963 |  | 
|---|
| [a08ba92] | 964 | } | 
|---|
| [51b73452] | 965 | } // namespace SymTab | 
|---|
| [0dd3a2f] | 966 |  | 
|---|
|  | 967 | // Local Variables: // | 
|---|
|  | 968 | // tab-width: 4 // | 
|---|
|  | 969 | // mode: c++ // | 
|---|
|  | 970 | // compile-command: "make install" // | 
|---|
|  | 971 | // End: // | 
|---|