| [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 );
|
|---|
| [e8032b0] | 321 | addUnion( &fwdDecl );
|
|---|
| [743fbda] | 322 |
|
|---|
| [0dd3a2f] | 323 | enterScope();
|
|---|
| 324 | acceptAll( aggregateDecl->get_parameters(), *this );
|
|---|
| 325 | acceptAll( aggregateDecl->get_members(), *this );
|
|---|
| 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 );
|
|---|
| 359 | acceptAll( applicationExpr->get_args(), *this );
|
|---|
| 360 | }
|
|---|
| 361 |
|
|---|
| 362 | void Indexer::visit( UntypedExpr *untypedExpr ) {
|
|---|
| [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 );
|
|---|
| [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: //
|
|---|