[51b7345] | 1 | /* |
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| 2 | * This file is part of the Cforall project |
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| 3 | * |
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| 4 | * $Id: Box.cc,v 1.20 2005/08/29 20:14:13 rcbilson Exp $ |
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| 5 | * |
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| 6 | */ |
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| 7 | |
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| 8 | #include <set> |
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[b1a6d6b] | 9 | #include <stack> |
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[51b7345] | 10 | #include <string> |
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| 11 | #include <iterator> |
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| 12 | #include <algorithm> |
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| 13 | #include <cassert> |
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| 14 | |
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| 15 | #include "Box.h" |
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| 16 | #include "PolyMutator.h" |
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| 17 | #include "FindFunction.h" |
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| 18 | #include "ScrubTyVars.h" |
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| 19 | |
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| 20 | #include "SynTree/Declaration.h" |
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| 21 | #include "SynTree/Type.h" |
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| 22 | #include "SynTree/Expression.h" |
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| 23 | #include "SynTree/Initializer.h" |
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| 24 | #include "SynTree/Statement.h" |
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| 25 | #include "SynTree/Mutator.h" |
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| 26 | #include "ResolvExpr/TypeEnvironment.h" |
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| 27 | #include "SymTab/Mangler.h" |
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| 28 | |
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| 29 | #include "SemanticError.h" |
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| 30 | #include "UniqueName.h" |
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| 31 | #include "utility.h" |
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| 32 | |
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| 33 | #include <ext/functional> // temporary |
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| 34 | |
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| 35 | namespace GenPoly { |
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[6c3744e] | 36 | namespace { |
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| 37 | const std::list<Label> noLabels; |
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| 38 | |
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| 39 | class Pass1 : public PolyMutator { |
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| 40 | public: |
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| 41 | Pass1(); |
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| 42 | virtual Expression *mutate( ApplicationExpr *appExpr ); |
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| 43 | virtual Expression *mutate( AddressExpr *addrExpr ); |
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| 44 | virtual Expression *mutate( UntypedExpr *expr ); |
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| 45 | virtual DeclarationWithType* mutate( FunctionDecl *functionDecl ); |
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| 46 | virtual TypeDecl *mutate( TypeDecl *typeDecl ); |
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| 47 | virtual Expression *mutate( CommaExpr *commaExpr ); |
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| 48 | virtual Expression *mutate( ConditionalExpr *condExpr ); |
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| 49 | virtual Statement *mutate(ReturnStmt *catchStmt); |
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| 50 | virtual Type *mutate( PointerType *pointerType ); |
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| 51 | virtual Type *mutate( FunctionType *pointerType ); |
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[51b7345] | 52 | |
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[b1a6d6b] | 53 | virtual void doBeginScope(); |
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[6c3744e] | 54 | virtual void doEndScope(); |
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| 55 | private: |
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| 56 | void passTypeVars( ApplicationExpr *appExpr, std::list< Expression *>::iterator &arg, const TyVarMap &exprTyVars ); |
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| 57 | Expression *addRetParam( ApplicationExpr *appExpr, FunctionType *function, Type *retType, std::list< Expression *>::iterator &arg ); |
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| 58 | Expression *addPolyRetParam( ApplicationExpr *appExpr, FunctionType *function, std::string typeName, std::list< Expression *>::iterator &arg ); |
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| 59 | Expression *applyAdapter( ApplicationExpr *appExpr, FunctionType *function, std::list< Expression *>::iterator &arg, const TyVarMap &exprTyVars ); |
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| 60 | void boxParam( Type *formal, Expression *&arg, const TyVarMap &exprTyVars ); |
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| 61 | void boxParams( ApplicationExpr *appExpr, FunctionType *function, std::list< Expression *>::iterator &arg, const TyVarMap &exprTyVars ); |
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| 62 | void addInferredParams( ApplicationExpr *appExpr, FunctionType *functionType, std::list< Expression *>::iterator &arg, const TyVarMap &tyVars ); |
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| 63 | void findAssignOps( const std::list< TypeDecl *> &forall ); |
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| 64 | void passAdapters( ApplicationExpr *appExpr, FunctionType *functionType, const TyVarMap &exprTyVars ); |
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| 65 | FunctionDecl *makeAdapter( FunctionType *adaptee, FunctionType *realType, const std::string &mangleName, const TyVarMap &tyVars ); |
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| 66 | Expression *handleIntrinsics( ApplicationExpr *appExpr ); |
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| 67 | ObjectDecl *makeTemporary( Type *type ); |
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[51b7345] | 68 | |
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[6c3744e] | 69 | std::map< std::string, DeclarationWithType *> assignOps; |
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[b1a6d6b] | 70 | typedef std::map< std::string, FunctionDecl *> AdapterMap; |
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| 71 | std::stack< AdapterMap > adapters; |
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[6c3744e] | 72 | DeclarationWithType *retval; |
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| 73 | bool useRetval; |
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| 74 | UniqueName tempNamer; |
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| 75 | }; |
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| 76 | |
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| 77 | class Pass2 : public PolyMutator { |
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| 78 | public: |
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| 79 | Pass2(); |
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| 80 | template< typename DeclClass > |
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| 81 | DeclClass *handleDecl( DeclClass *decl, Type *type ); |
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| 82 | virtual DeclarationWithType *mutate( FunctionDecl *functionDecl ); |
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| 83 | virtual ObjectDecl *mutate( ObjectDecl *objectDecl ); |
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| 84 | virtual TypeDecl *mutate( TypeDecl *typeDecl ); |
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| 85 | virtual TypedefDecl *mutate( TypedefDecl *typedefDecl ); |
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| 86 | virtual Type *mutate( PointerType *pointerType ); |
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| 87 | virtual Type *mutate( FunctionType *funcType ); |
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| 88 | private: |
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| 89 | void addAdapters( FunctionType *functionType ); |
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[51b7345] | 90 | |
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[6c3744e] | 91 | std::map< UniqueId, std::string > adapterName; |
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| 92 | }; |
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| 93 | |
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| 94 | class Pass3 : public PolyMutator { |
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| 95 | public: |
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| 96 | template< typename DeclClass > |
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| 97 | DeclClass *handleDecl( DeclClass *decl, Type *type ); |
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| 98 | virtual DeclarationWithType *mutate( FunctionDecl *functionDecl ); |
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| 99 | virtual ObjectDecl *mutate( ObjectDecl *objectDecl ); |
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| 100 | virtual TypedefDecl *mutate( TypedefDecl *objectDecl ); |
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| 101 | virtual TypeDecl *mutate( TypeDecl *objectDecl ); |
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| 102 | virtual Statement *mutate( DeclStmt *declStmt ); |
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| 103 | virtual Type *mutate( PointerType *pointerType ); |
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| 104 | virtual Type *mutate( FunctionType *funcType ); |
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| 105 | private: |
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| 106 | }; |
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| 107 | |
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| 108 | } // anonymous namespace |
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| 109 | |
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| 110 | void printAllNotBuiltin( const std::list< Declaration *>& translationUnit, std::ostream &os ) { |
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| 111 | for ( std::list< Declaration *>::const_iterator i = translationUnit.begin(); i != translationUnit.end(); ++i ) { |
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| 112 | if ( !LinkageSpec::isBuiltin( (*i)->get_linkage() ) ) { |
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| 113 | (*i)->print( os ); |
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| 114 | os << std::endl; |
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| 115 | } // if |
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| 116 | } // for |
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[51b7345] | 117 | } |
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| 118 | |
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[6c3744e] | 119 | void box( std::list< Declaration *>& translationUnit ) { |
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| 120 | Pass1 pass1; |
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| 121 | Pass2 pass2; |
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| 122 | Pass3 pass3; |
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| 123 | mutateAll( translationUnit, pass1 ); |
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| 124 | mutateAll( translationUnit, pass2 ); |
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| 125 | mutateAll( translationUnit, pass3 ); |
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| 126 | } |
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[51b7345] | 127 | |
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[6c3744e] | 128 | ////////////////////////////////////////// Pass1 //////////////////////////////////////////////////// |
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[51b7345] | 129 | |
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[6c3744e] | 130 | namespace { |
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[b1a6d6b] | 131 | std::string makeAdapterName( const std::string &mangleName ) { |
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| 132 | return "_adapter" + mangleName; |
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| 133 | } |
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| 134 | |
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[6c3744e] | 135 | bool isPolyRet( FunctionType *function, std::string &name, const TyVarMap &otherTyVars ) { |
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| 136 | bool doTransform = false; |
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| 137 | if ( !function->get_returnVals().empty() ) { |
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| 138 | if ( TypeInstType *typeInst = dynamic_cast< TypeInstType *>( function->get_returnVals().front()->get_type() ) ) { |
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[51b7345] | 139 | |
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[6c3744e] | 140 | // figure out if the return type is specified by a type parameter |
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| 141 | for ( std::list< TypeDecl *>::const_iterator tyVar = function->get_forall().begin(); tyVar != function->get_forall().end(); ++tyVar ) { |
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| 142 | if ( (*tyVar)->get_name() == typeInst->get_name() ) { |
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| 143 | doTransform = true; |
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| 144 | name = typeInst->get_name(); |
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| 145 | break; |
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| 146 | } // if |
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| 147 | } // for |
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| 148 | if ( !doTransform && otherTyVars.find( typeInst->get_name() ) != otherTyVars.end() ) { |
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| 149 | doTransform = true; |
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| 150 | } // if |
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| 151 | } // if |
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| 152 | } // if |
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| 153 | return doTransform; |
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| 154 | } |
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| 155 | |
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| 156 | bool isPolyRet( FunctionType *function, std::string &name ) { |
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| 157 | TyVarMap dummyTyVars; |
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| 158 | return isPolyRet( function, name, dummyTyVars ); |
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| 159 | } |
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| 160 | |
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| 161 | Pass1::Pass1() |
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| 162 | : useRetval( false ), tempNamer( "_temp" ) { |
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| 163 | } |
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| 164 | |
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| 165 | bool checkAssignment( DeclarationWithType *decl, std::string &name ) { |
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| 166 | if ( decl->get_name() == "?=?" ) { |
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| 167 | if ( PointerType *ptrType = dynamic_cast< PointerType *>( decl->get_type() ) ) { |
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| 168 | if ( FunctionType *funType = dynamic_cast< FunctionType *>( ptrType->get_base() ) ) { |
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| 169 | if ( funType->get_parameters().size() == 2 ) { |
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| 170 | if ( PointerType *pointer = dynamic_cast< PointerType *>( funType->get_parameters().front()->get_type() ) ) { |
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| 171 | if ( TypeInstType *typeInst = dynamic_cast< TypeInstType *>( pointer->get_base() ) ) { |
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| 172 | name = typeInst->get_name(); |
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| 173 | return true; |
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| 174 | } // if |
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| 175 | } // if |
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| 176 | } // if |
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| 177 | } // if |
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| 178 | } // if |
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| 179 | } // if |
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| 180 | return false; |
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| 181 | } |
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| 182 | |
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| 183 | void Pass1::findAssignOps( const std::list< TypeDecl *> &forall ) { |
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| 184 | assignOps.clear(); |
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| 185 | for ( std::list< TypeDecl *>::const_iterator i = forall.begin(); i != forall.end(); ++i ) { |
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| 186 | for ( std::list< DeclarationWithType *>::const_iterator assert = (*i)->get_assertions().begin(); assert != (*i)->get_assertions().end(); ++assert ) { |
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| 187 | std::string typeName; |
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| 188 | if ( checkAssignment( *assert, typeName ) ) { |
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| 189 | assignOps[ typeName ] = *assert; |
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| 190 | } // if |
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| 191 | } // for |
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| 192 | } // for |
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| 193 | } |
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| 194 | |
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| 195 | DeclarationWithType * |
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| 196 | Pass1::mutate( FunctionDecl *functionDecl ) { |
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| 197 | if ( functionDecl->get_statements() ) { |
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| 198 | TyVarMap oldtyVars = scopeTyVars; |
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| 199 | DeclarationWithType *oldRetval = retval; |
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| 200 | bool oldUseRetval = useRetval; |
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[51b7345] | 201 | |
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[6c3744e] | 202 | retval = 0; |
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| 203 | std::string typeName; |
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| 204 | if ( isPolyRet( functionDecl->get_functionType(), typeName ) && functionDecl->get_linkage() == LinkageSpec::Cforall ) { |
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| 205 | retval = functionDecl->get_functionType()->get_returnVals().front(); |
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[51b7345] | 206 | |
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[6c3744e] | 207 | // give names to unnamed return values |
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| 208 | if ( retval->get_name() == "" ) { |
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| 209 | retval->set_name( "_retparm" ); |
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| 210 | retval->set_linkage( LinkageSpec::C ); |
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| 211 | } // if |
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| 212 | } // if |
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[51b7345] | 213 | |
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[6c3744e] | 214 | scopeTyVars.clear(); |
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[51b7345] | 215 | /// std::cerr << "clear\n"; |
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[6c3744e] | 216 | makeTyVarMap( functionDecl->get_functionType(), scopeTyVars ); |
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| 217 | findAssignOps( functionDecl->get_functionType()->get_forall() ); |
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| 218 | functionDecl->set_statements( functionDecl->get_statements()->acceptMutator( *this ) ); |
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[51b7345] | 219 | |
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[6c3744e] | 220 | scopeTyVars = oldtyVars; |
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[51b7345] | 221 | /// std::cerr << "end FunctionDecl: "; |
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[6c3744e] | 222 | /// for ( TyVarMap::iterator i = scopeTyVars.begin(); i != scopeTyVars.end(); ++i ) { |
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[51b7345] | 223 | /// std::cerr << i->first << " "; |
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| 224 | /// } |
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| 225 | /// std::cerr << "\n"; |
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[6c3744e] | 226 | retval = oldRetval; |
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| 227 | useRetval = oldUseRetval; |
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[b1a6d6b] | 228 | // doEndScope(); |
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[6c3744e] | 229 | } // if |
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| 230 | return functionDecl; |
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| 231 | } |
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| 232 | |
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| 233 | TypeDecl *Pass1::mutate( TypeDecl *typeDecl ) { |
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[51b7345] | 234 | /// std::cerr << "add " << typeDecl->get_name() << "\n"; |
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[6c3744e] | 235 | scopeTyVars[ typeDecl->get_name() ] = typeDecl->get_kind(); |
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| 236 | return Mutator::mutate( typeDecl ); |
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| 237 | } |
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| 238 | |
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| 239 | Expression *Pass1::mutate( CommaExpr *commaExpr ) { |
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| 240 | bool oldUseRetval = useRetval; |
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| 241 | useRetval = false; |
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| 242 | commaExpr->set_arg1( maybeMutate( commaExpr->get_arg1(), *this ) ); |
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| 243 | useRetval = oldUseRetval; |
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| 244 | commaExpr->set_arg2( maybeMutate( commaExpr->get_arg2(), *this ) ); |
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| 245 | return commaExpr; |
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| 246 | } |
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| 247 | |
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| 248 | Expression *Pass1::mutate( ConditionalExpr *condExpr ) { |
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| 249 | bool oldUseRetval = useRetval; |
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| 250 | useRetval = false; |
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| 251 | condExpr->set_arg1( maybeMutate( condExpr->get_arg1(), *this ) ); |
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| 252 | useRetval = oldUseRetval; |
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| 253 | condExpr->set_arg2( maybeMutate( condExpr->get_arg2(), *this ) ); |
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| 254 | condExpr->set_arg3( maybeMutate( condExpr->get_arg3(), *this ) ); |
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| 255 | return condExpr; |
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| 256 | |
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| 257 | } |
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| 258 | |
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| 259 | void Pass1::passTypeVars( ApplicationExpr *appExpr, std::list< Expression *>::iterator &arg, const TyVarMap &exprTyVars ) { |
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| 260 | for ( TyVarMap::const_iterator tyParm = exprTyVars.begin(); tyParm != exprTyVars.end(); ++tyParm ) { |
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| 261 | ResolvExpr::EqvClass eqvClass; |
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| 262 | assert( env ); |
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| 263 | if ( tyParm->second == TypeDecl::Any ) { |
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| 264 | Type *concrete = env->lookup( tyParm->first ); |
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| 265 | if ( concrete ) { |
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| 266 | arg = appExpr->get_args().insert( arg, new SizeofExpr( concrete->clone() ) ); |
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| 267 | arg++; |
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| 268 | } else { |
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| 269 | throw SemanticError( "unbound type variable in application ", appExpr ); |
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| 270 | } // if |
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| 271 | } // if |
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| 272 | } // for |
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| 273 | } |
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| 274 | |
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| 275 | ObjectDecl *Pass1::makeTemporary( Type *type ) { |
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| 276 | ObjectDecl *newObj = new ObjectDecl( tempNamer.newName(), Declaration::NoStorageClass, LinkageSpec::C, 0, type, 0 ); |
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| 277 | stmtsToAdd.push_back( new DeclStmt( noLabels, newObj ) ); |
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| 278 | return newObj; |
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| 279 | } |
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| 280 | |
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| 281 | TypeInstType *isPolyType( Type *type, const TypeSubstitution *env, const TyVarMap &tyVars ) { |
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| 282 | if ( TypeInstType *typeInst = dynamic_cast< TypeInstType *>( type ) ) { |
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| 283 | if ( env ) { |
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| 284 | if ( Type *newType = env->lookup( typeInst->get_name() ) ) { |
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| 285 | return isPolyType( newType, env, tyVars ); |
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| 286 | } // if |
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| 287 | } // if |
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| 288 | if ( tyVars.find( typeInst->get_name() ) != tyVars.end() ) { |
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| 289 | return typeInst; |
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| 290 | } else { |
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| 291 | return 0; |
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| 292 | } // if |
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| 293 | } else { |
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| 294 | return 0; |
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| 295 | } // if |
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| 296 | } |
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| 297 | |
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| 298 | Expression *Pass1::addRetParam( ApplicationExpr *appExpr, FunctionType *function, Type *retType, std::list< Expression *>::iterator &arg ) { |
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| 299 | if ( useRetval ) { |
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| 300 | assert( retval ); |
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| 301 | arg = appExpr->get_args().insert( arg, new VariableExpr( retval ) ); |
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| 302 | arg++; |
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| 303 | } else { |
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| 304 | ObjectDecl *newObj = makeTemporary( retType->clone() ); |
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| 305 | Expression *paramExpr = new VariableExpr( newObj ); |
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| 306 | if ( !isPolyType( newObj->get_type(), env, scopeTyVars ) ) { |
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| 307 | paramExpr = new AddressExpr( paramExpr ); |
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| 308 | } // if |
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| 309 | arg = appExpr->get_args().insert( arg, paramExpr ); |
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| 310 | arg++; |
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[51b7345] | 311 | /// stmtsToAdd.push_back( new ExprStmt( noLabels, appExpr ) ); |
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[6c3744e] | 312 | CommaExpr *commaExpr = new CommaExpr( appExpr, new VariableExpr( newObj ) ); |
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| 313 | commaExpr->set_env( appExpr->get_env() ); |
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| 314 | appExpr->set_env( 0 ); |
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| 315 | return commaExpr; |
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| 316 | } // if |
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| 317 | return appExpr; |
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| 318 | } |
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| 319 | |
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| 320 | Expression *Pass1::addPolyRetParam( ApplicationExpr *appExpr, FunctionType *function, std::string typeName, std::list< Expression *>::iterator &arg ) { |
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| 321 | ResolvExpr::EqvClass eqvClass; |
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| 322 | assert( env ); |
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| 323 | Type *concrete = env->lookup( typeName ); |
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| 324 | if ( concrete == 0 ) { |
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[b1a6d6b] | 325 | throw SemanticError( "Unbound type variable " + typeName + " in ", appExpr ); |
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[6c3744e] | 326 | } // if |
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| 327 | return addRetParam( appExpr, function, concrete, arg ); |
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| 328 | } |
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| 329 | |
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| 330 | Expression *Pass1::applyAdapter( ApplicationExpr *appExpr, FunctionType *function, std::list< Expression *>::iterator &arg, const TyVarMap &tyVars ) { |
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| 331 | Expression *ret = appExpr; |
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| 332 | if ( !function->get_returnVals().empty() && isPolyVal( function->get_returnVals().front()->get_type(), tyVars ) ) { |
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| 333 | ret = addRetParam( appExpr, function, function->get_returnVals().front()->get_type(), arg ); |
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| 334 | } // if |
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[b1a6d6b] | 335 | std::string mangleName = SymTab::Mangler::mangle( function ); |
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| 336 | std::string adapterName = makeAdapterName( mangleName ); |
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| 337 | |
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[6c3744e] | 338 | appExpr->get_args().push_front( appExpr->get_function() ); |
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[b1a6d6b] | 339 | appExpr->set_function( new NameExpr( adapterName ) ); |
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[51b7345] | 340 | |
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[6c3744e] | 341 | return ret; |
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| 342 | } |
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| 343 | |
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| 344 | void Pass1::boxParam( Type *param, Expression *&arg, const TyVarMap &exprTyVars ) { |
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| 345 | assert( !arg->get_results().empty() ); |
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| 346 | /// if ( !dynamic_cast< PointerType *>( arg->get_results().front() ) ) { |
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| 347 | TypeInstType *typeInst = dynamic_cast< TypeInstType *>( param ); |
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| 348 | if ( typeInst && exprTyVars.find( typeInst->get_name() ) != exprTyVars.end() ) { |
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[b1a6d6b] | 349 | if ( dynamic_cast< TypeInstType *>( arg->get_results().front() ) ) { |
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| 350 | // if the argument's type is a type parameter, we don't need to box again! |
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| 351 | return; |
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| 352 | } else if ( arg->get_results().front()->get_isLvalue() ) { |
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| 353 | // VariableExpr and MemberExpr are lvalues |
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[6c3744e] | 354 | arg = new AddressExpr( arg ); |
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| 355 | } else { |
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| 356 | ObjectDecl *newObj = new ObjectDecl( tempNamer.newName(), Declaration::NoStorageClass, LinkageSpec::C, 0, arg->get_results().front()->clone(), 0 ); |
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| 357 | newObj->get_type()->get_qualifiers() = Type::Qualifiers(); |
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| 358 | stmtsToAdd.push_back( new DeclStmt( noLabels, newObj ) ); |
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| 359 | UntypedExpr *assign = new UntypedExpr( new NameExpr( "?=?" ) ); |
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| 360 | assign->get_args().push_back( new VariableExpr( newObj ) ); |
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| 361 | assign->get_args().push_back( arg ); |
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| 362 | stmtsToAdd.push_back( new ExprStmt( noLabels, assign ) ); |
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| 363 | arg = new AddressExpr( new VariableExpr( newObj ) ); |
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| 364 | } // if |
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| 365 | } // if |
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[51b7345] | 366 | /// } |
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[6c3744e] | 367 | } |
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| 368 | |
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| 369 | void addCast( Expression *&actual, Type *formal, const TyVarMap &tyVars ) { |
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| 370 | Type *newType = formal->clone(); |
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| 371 | std::list< FunctionType *> functions; |
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| 372 | // instead of functions needing adapters, this really ought to look for |
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| 373 | // any function mentioning a polymorphic type |
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| 374 | findAndReplaceFunction( newType, functions, tyVars, needsAdapter ); |
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| 375 | if ( !functions.empty() ) { |
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| 376 | actual = new CastExpr( actual, newType ); |
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| 377 | } else { |
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| 378 | delete newType; |
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| 379 | } // if |
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| 380 | } |
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| 381 | |
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| 382 | void Pass1::boxParams( ApplicationExpr *appExpr, FunctionType *function, std::list< Expression *>::iterator &arg, const TyVarMap &exprTyVars ) { |
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[51b7345] | 383 | /// std::cout << "function is "; |
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| 384 | /// function->print( std::cout ); |
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[6c3744e] | 385 | for ( std::list< DeclarationWithType *>::const_iterator param = function->get_parameters().begin(); param != function->get_parameters().end(); ++param, ++arg ) { |
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[51b7345] | 386 | /// std::cout << "parameter is "; |
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[b1a6d6b] | 387 | /// (*param)->print( std::fcout ); |
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[51b7345] | 388 | /// std::cout << std::endl << "argument is "; |
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| 389 | /// (*arg)->print( std::cout ); |
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[6c3744e] | 390 | assert( arg != appExpr->get_args().end() ); |
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| 391 | addCast( *arg, (*param)->get_type(), exprTyVars ); |
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| 392 | boxParam( (*param)->get_type(), *arg, exprTyVars ); |
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| 393 | } // for |
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| 394 | } |
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| 395 | |
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| 396 | void Pass1::addInferredParams( ApplicationExpr *appExpr, FunctionType *functionType, std::list< Expression *>::iterator &arg, const TyVarMap &tyVars ) { |
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| 397 | std::list< Expression *>::iterator cur = arg; |
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| 398 | for ( std::list< TypeDecl *>::iterator tyVar = functionType->get_forall().begin(); tyVar != functionType->get_forall().end(); ++tyVar ) { |
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| 399 | for ( std::list< DeclarationWithType *>::iterator assert = (*tyVar)->get_assertions().begin(); assert != (*tyVar)->get_assertions().end(); ++assert ) { |
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| 400 | InferredParams::const_iterator inferParam = appExpr->get_inferParams().find( (*assert)->get_uniqueId() ); |
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| 401 | assert( inferParam != appExpr->get_inferParams().end() ); |
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| 402 | Expression *newExpr = inferParam->second.expr->clone(); |
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| 403 | addCast( newExpr, (*assert)->get_type(), tyVars ); |
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| 404 | boxParam( (*assert)->get_type(), newExpr, tyVars ); |
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| 405 | appExpr->get_args().insert( cur, newExpr ); |
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| 406 | } // for |
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| 407 | } // for |
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| 408 | } |
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| 409 | |
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| 410 | void makeRetParm( FunctionType *funcType ) { |
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| 411 | DeclarationWithType *retParm = funcType->get_returnVals().front(); |
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| 412 | |
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| 413 | // make a new parameter that is a pointer to the type of the old return value |
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| 414 | retParm->set_type( new PointerType( Type::Qualifiers(), retParm->get_type() ) ); |
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| 415 | funcType->get_parameters().push_front( retParm ); |
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| 416 | |
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| 417 | // we don't need the return value any more |
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| 418 | funcType->get_returnVals().clear(); |
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| 419 | } |
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| 420 | |
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| 421 | FunctionType *makeAdapterType( FunctionType *adaptee, const TyVarMap &tyVars ) { |
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| 422 | // actually make the adapter type |
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| 423 | FunctionType *adapter = adaptee->clone(); |
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| 424 | if ( !adapter->get_returnVals().empty() && isPolyVal( adapter->get_returnVals().front()->get_type(), tyVars ) ) { |
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| 425 | makeRetParm( adapter ); |
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| 426 | } // if |
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| 427 | adapter->get_parameters().push_front( new ObjectDecl( "", Declaration::NoStorageClass, LinkageSpec::C, 0, new PointerType( Type::Qualifiers(), new FunctionType( Type::Qualifiers(), true ) ), 0 ) ); |
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| 428 | return adapter; |
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| 429 | } |
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| 430 | |
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| 431 | Expression *makeAdapterArg( DeclarationWithType *param, DeclarationWithType *arg, DeclarationWithType *realParam, const TyVarMap &tyVars ) { |
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| 432 | assert( param ); |
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| 433 | assert( arg ); |
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[51b7345] | 434 | /// std::cout << "arg type is "; |
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| 435 | /// arg->get_type()->print( std::cout ); |
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| 436 | /// std::cout << "param type is "; |
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| 437 | /// param->get_type()->print( std::cout ); |
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| 438 | /// std::cout << " tyVars are: "; |
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| 439 | /// printTyVarMap( std::cout, tyVars ); |
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[6c3744e] | 440 | if ( isPolyVal( realParam->get_type(), tyVars ) ) { |
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| 441 | /// if ( dynamic_cast< PointerType *>( arg->get_type() ) ) { |
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[51b7345] | 442 | /// return new CastExpr( new VariableExpr( param ), arg->get_type()->clone() ); |
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| 443 | /// } else { |
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[6c3744e] | 444 | UntypedExpr *deref = new UntypedExpr( new NameExpr( "*?" ) ); |
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| 445 | deref->get_args().push_back( new CastExpr( new VariableExpr( param ), new PointerType( Type::Qualifiers(), arg->get_type()->clone() ) ) ); |
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| 446 | deref->get_results().push_back( arg->get_type()->clone() ); |
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| 447 | return deref; |
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[51b7345] | 448 | /// } |
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[6c3744e] | 449 | } // if |
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| 450 | return new VariableExpr( param ); |
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| 451 | } |
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| 452 | |
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| 453 | void addAdapterParams( ApplicationExpr *adapteeApp, std::list< DeclarationWithType *>::iterator arg, std::list< DeclarationWithType *>::iterator param, std::list< DeclarationWithType *>::iterator paramEnd, std::list< DeclarationWithType *>::iterator realParam, const TyVarMap &tyVars ) { |
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| 454 | UniqueName paramNamer( "_p" ); |
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| 455 | for ( ; param != paramEnd; ++param, ++arg, ++realParam ) { |
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| 456 | if ( (*param)->get_name() == "" ) { |
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| 457 | (*param)->set_name( paramNamer.newName() ); |
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| 458 | (*param)->set_linkage( LinkageSpec::C ); |
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| 459 | } // if |
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| 460 | adapteeApp->get_args().push_back( makeAdapterArg( *param, *arg, *realParam, tyVars ) ); |
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| 461 | } // for |
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| 462 | } |
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| 463 | |
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[b1a6d6b] | 464 | |
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| 465 | |
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[6c3744e] | 466 | FunctionDecl *Pass1::makeAdapter( FunctionType *adaptee, FunctionType *realType, const std::string &mangleName, const TyVarMap &tyVars ) { |
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| 467 | FunctionType *adapterType = makeAdapterType( adaptee, tyVars ); |
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| 468 | adapterType = ScrubTyVars::scrub( adapterType, tyVars ); |
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| 469 | DeclarationWithType *adapteeDecl = adapterType->get_parameters().front(); |
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| 470 | adapteeDecl->set_name( "_adaptee" ); |
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| 471 | ApplicationExpr *adapteeApp = new ApplicationExpr( new CastExpr( new VariableExpr( adapteeDecl ), new PointerType( Type::Qualifiers(), realType ) ) ); |
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| 472 | Statement *bodyStmt; |
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[51b7345] | 473 | |
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[6c3744e] | 474 | std::list< TypeDecl *>::iterator tyArg = realType->get_forall().begin(); |
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| 475 | std::list< TypeDecl *>::iterator tyParam = adapterType->get_forall().begin(); |
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| 476 | std::list< TypeDecl *>::iterator realTyParam = adaptee->get_forall().begin(); |
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| 477 | for ( ; tyParam != adapterType->get_forall().end(); ++tyArg, ++tyParam, ++realTyParam ) { |
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| 478 | assert( tyArg != realType->get_forall().end() ); |
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| 479 | std::list< DeclarationWithType *>::iterator assertArg = (*tyArg)->get_assertions().begin(); |
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| 480 | std::list< DeclarationWithType *>::iterator assertParam = (*tyParam)->get_assertions().begin(); |
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| 481 | std::list< DeclarationWithType *>::iterator realAssertParam = (*realTyParam)->get_assertions().begin(); |
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| 482 | for ( ; assertParam != (*tyParam)->get_assertions().end(); ++assertArg, ++assertParam, ++realAssertParam ) { |
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| 483 | assert( assertArg != (*tyArg)->get_assertions().end() ); |
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| 484 | adapteeApp->get_args().push_back( makeAdapterArg( *assertParam, *assertArg, *realAssertParam, tyVars ) ); |
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| 485 | } // for |
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| 486 | } // for |
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[51b7345] | 487 | |
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[6c3744e] | 488 | std::list< DeclarationWithType *>::iterator arg = realType->get_parameters().begin(); |
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| 489 | std::list< DeclarationWithType *>::iterator param = adapterType->get_parameters().begin(); |
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| 490 | std::list< DeclarationWithType *>::iterator realParam = adaptee->get_parameters().begin(); |
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| 491 | param++; // skip adaptee parameter |
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| 492 | if ( realType->get_returnVals().empty() ) { |
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| 493 | addAdapterParams( adapteeApp, arg, param, adapterType->get_parameters().end(), realParam, tyVars ); |
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| 494 | bodyStmt = new ExprStmt( noLabels, adapteeApp ); |
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| 495 | } else if ( isPolyVal( adaptee->get_returnVals().front()->get_type(), tyVars ) ) { |
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| 496 | if ( (*param)->get_name() == "" ) { |
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| 497 | (*param)->set_name( "_ret" ); |
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| 498 | (*param)->set_linkage( LinkageSpec::C ); |
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| 499 | } // if |
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| 500 | UntypedExpr *assign = new UntypedExpr( new NameExpr( "?=?" ) ); |
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| 501 | UntypedExpr *deref = new UntypedExpr( new NameExpr( "*?" ) ); |
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| 502 | deref->get_args().push_back( new CastExpr( new VariableExpr( *param++ ), new PointerType( Type::Qualifiers(), realType->get_returnVals().front()->get_type()->clone() ) ) ); |
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| 503 | assign->get_args().push_back( deref ); |
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| 504 | addAdapterParams( adapteeApp, arg, param, adapterType->get_parameters().end(), realParam, tyVars ); |
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| 505 | assign->get_args().push_back( adapteeApp ); |
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| 506 | bodyStmt = new ExprStmt( noLabels, assign ); |
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| 507 | } else { |
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| 508 | // adapter for a function that returns a monomorphic value |
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| 509 | addAdapterParams( adapteeApp, arg, param, adapterType->get_parameters().end(), realParam, tyVars ); |
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| 510 | bodyStmt = new ReturnStmt( noLabels, adapteeApp ); |
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| 511 | } // if |
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| 512 | CompoundStmt *adapterBody = new CompoundStmt( noLabels ); |
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| 513 | adapterBody->get_kids().push_back( bodyStmt ); |
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[b1a6d6b] | 514 | std::string adapterName = makeAdapterName( mangleName ); |
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| 515 | return new FunctionDecl( adapterName, Declaration::NoStorageClass, LinkageSpec::C, adapterType, adapterBody, false ); |
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[6c3744e] | 516 | } |
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| 517 | |
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| 518 | void Pass1::passAdapters( ApplicationExpr *appExpr, FunctionType *functionType, const TyVarMap &exprTyVars ) { |
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| 519 | std::list< DeclarationWithType *> ¶mList = functionType->get_parameters(); |
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| 520 | std::list< FunctionType *> functions; |
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| 521 | for ( std::list< TypeDecl *>::iterator tyVar = functionType->get_forall().begin(); tyVar != functionType->get_forall().end(); ++tyVar ) { |
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| 522 | for ( std::list< DeclarationWithType *>::iterator assert = (*tyVar)->get_assertions().begin(); assert != (*tyVar)->get_assertions().end(); ++assert ) { |
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| 523 | findFunction( (*assert)->get_type(), functions, exprTyVars, needsAdapter ); |
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| 524 | } // for |
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| 525 | } // for |
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| 526 | for ( std::list< DeclarationWithType *>::iterator arg = paramList.begin(); arg != paramList.end(); ++arg ) { |
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| 527 | findFunction( (*arg)->get_type(), functions, exprTyVars, needsAdapter ); |
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| 528 | } // for |
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| 529 | std::set< std::string > adaptersDone; |
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| 530 | for ( std::list< FunctionType *>::iterator funType = functions.begin(); funType != functions.end(); ++funType ) { |
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| 531 | FunctionType *realFunction = (*funType)->clone(); |
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| 532 | assert( env ); |
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| 533 | env->apply( realFunction ); |
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[b1a6d6b] | 534 | |
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[6c3744e] | 535 | std::string mangleName = SymTab::Mangler::mangle( realFunction ); |
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| 536 | if ( adaptersDone.find( mangleName ) == adaptersDone.end() ) { |
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[b1a6d6b] | 537 | AdapterMap & adapters = Pass1::adapters.top(); |
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| 538 | AdapterMap::iterator adapter = adapters.find( mangleName ); |
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| 539 | |
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| 540 | if ( needsAdapter( realFunction, exprTyVars, true ) ) { |
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| 541 | // the function still contains type variables, which means we are in a polymorphic |
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| 542 | // context and the adapter function is a parameter - call the parameter and don't |
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| 543 | // create a new adapter. |
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| 544 | appExpr->get_args().push_front( new NameExpr( makeAdapterName ( mangleName ) ) ); |
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| 545 | continue; |
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| 546 | } else if ( adapter == adapters.end() ) { |
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| 547 | FunctionDecl *newAdapter = makeAdapter( *funType, realFunction, mangleName, exprTyVars ); |
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[6c3744e] | 548 | adapter = adapters.insert( adapters.begin(), std::pair< std::string, FunctionDecl *>( mangleName, newAdapter ) ); |
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| 549 | stmtsToAdd.push_back( new DeclStmt( noLabels, newAdapter ) ); |
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| 550 | } // if |
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| 551 | assert( adapter != adapters.end() ); |
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| 552 | appExpr->get_args().push_front( new VariableExpr( adapter->second ) ); |
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[b1a6d6b] | 553 | // appExpr->get_args().push_front( new NameExpr( makeAdapterName ( mangleName ) ) ); |
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[6c3744e] | 554 | adaptersDone.insert( adaptersDone.begin(), mangleName ); |
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| 555 | } // if |
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| 556 | } // for |
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| 557 | } |
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| 558 | |
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| 559 | TypeInstType *isPolyPtr( Type *type, const TypeSubstitution *env, const TyVarMap &tyVars ) { |
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| 560 | if ( PointerType *ptr = dynamic_cast< PointerType *>( type ) ) { |
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| 561 | return isPolyType( ptr->get_base(), env, tyVars ); |
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| 562 | } else if ( env ) { |
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| 563 | if ( TypeInstType *typeInst = dynamic_cast< TypeInstType *>( type ) ) { |
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| 564 | if ( Type *newType = env->lookup( typeInst->get_name() ) ) { |
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| 565 | return isPolyPtr( newType, env, tyVars ); |
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| 566 | } // if |
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| 567 | } // if |
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| 568 | } // if |
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| 569 | return 0; |
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| 570 | } |
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| 571 | |
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| 572 | TypeInstType *isPolyPtrPtr( Type *type, const TypeSubstitution *env, const TyVarMap &tyVars ) { |
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| 573 | if ( PointerType *ptr = dynamic_cast< PointerType *>( type ) ) { |
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| 574 | return isPolyPtr( ptr->get_base(), env, tyVars ); |
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| 575 | } else if ( env ) { |
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| 576 | if ( TypeInstType *typeInst = dynamic_cast< TypeInstType *>( type ) ) { |
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| 577 | if ( Type *newType = env->lookup( typeInst->get_name() ) ) { |
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| 578 | return isPolyPtrPtr( newType, env, tyVars ); |
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| 579 | } // if |
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| 580 | } // if |
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| 581 | } // if |
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| 582 | return 0; |
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| 583 | } |
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| 584 | |
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| 585 | Expression *makeIncrDecrExpr( ApplicationExpr *appExpr, std::string polyName, bool isIncr ) { |
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| 586 | NameExpr *opExpr; |
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| 587 | if ( isIncr ) { |
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| 588 | opExpr = new NameExpr( "?+=?" ); |
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| 589 | } else { |
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| 590 | opExpr = new NameExpr( "?-=?" ); |
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| 591 | } // if |
---|
| 592 | UntypedExpr *addAssign = new UntypedExpr( opExpr ); |
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| 593 | if ( AddressExpr *address = dynamic_cast< AddressExpr *>( appExpr->get_args().front() ) ) { |
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| 594 | addAssign->get_args().push_back( address->get_arg() ); |
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| 595 | } else { |
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| 596 | addAssign->get_args().push_back( appExpr->get_args().front() ); |
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| 597 | } // if |
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| 598 | addAssign->get_args().push_back( new NameExpr( polyName ) ); |
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| 599 | addAssign->get_results().front() = appExpr->get_results().front()->clone(); |
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| 600 | if ( appExpr->get_env() ) { |
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| 601 | addAssign->set_env( appExpr->get_env() ); |
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| 602 | appExpr->set_env( 0 ); |
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| 603 | } // if |
---|
| 604 | appExpr->get_args().clear(); |
---|
| 605 | delete appExpr; |
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| 606 | return addAssign; |
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| 607 | } |
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| 608 | |
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| 609 | Expression *Pass1::handleIntrinsics( ApplicationExpr *appExpr ) { |
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| 610 | if ( VariableExpr *varExpr = dynamic_cast< VariableExpr *>( appExpr->get_function() ) ) { |
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| 611 | if ( varExpr->get_var()->get_linkage() == LinkageSpec::Intrinsic ) { |
---|
| 612 | if ( varExpr->get_var()->get_name() == "?[?]" ) { |
---|
| 613 | assert( !appExpr->get_results().empty() ); |
---|
| 614 | assert( appExpr->get_args().size() == 2 ); |
---|
| 615 | TypeInstType *typeInst1 = isPolyPtr( appExpr->get_args().front()->get_results().front(), env, scopeTyVars ); |
---|
| 616 | TypeInstType *typeInst2 = isPolyPtr( appExpr->get_args().back()->get_results().front(), env, scopeTyVars ); |
---|
| 617 | assert( !typeInst1 || !typeInst2 ); |
---|
| 618 | UntypedExpr *ret = 0; |
---|
| 619 | if ( typeInst1 || typeInst2 ) { |
---|
| 620 | ret = new UntypedExpr( new NameExpr( "?+?" ) ); |
---|
| 621 | } // if |
---|
| 622 | if ( typeInst1 ) { |
---|
| 623 | UntypedExpr *multiply = new UntypedExpr( new NameExpr( "?*?" ) ); |
---|
| 624 | multiply->get_args().push_back( appExpr->get_args().back() ); |
---|
| 625 | multiply->get_args().push_back( new NameExpr( typeInst1->get_name() ) ); |
---|
| 626 | ret->get_args().push_back( appExpr->get_args().front() ); |
---|
| 627 | ret->get_args().push_back( multiply ); |
---|
| 628 | } else if ( typeInst2 ) { |
---|
| 629 | UntypedExpr *multiply = new UntypedExpr( new NameExpr( "?*?" ) ); |
---|
| 630 | multiply->get_args().push_back( appExpr->get_args().front() ); |
---|
| 631 | multiply->get_args().push_back( new NameExpr( typeInst2->get_name() ) ); |
---|
| 632 | ret->get_args().push_back( multiply ); |
---|
| 633 | ret->get_args().push_back( appExpr->get_args().back() ); |
---|
| 634 | } // if |
---|
| 635 | if ( typeInst1 || typeInst2 ) { |
---|
| 636 | ret->get_results().push_front( appExpr->get_results().front()->clone() ); |
---|
| 637 | if ( appExpr->get_env() ) { |
---|
| 638 | ret->set_env( appExpr->get_env() ); |
---|
| 639 | appExpr->set_env( 0 ); |
---|
| 640 | } // if |
---|
| 641 | appExpr->get_args().clear(); |
---|
| 642 | delete appExpr; |
---|
| 643 | return ret; |
---|
| 644 | } // if |
---|
| 645 | } else if ( varExpr->get_var()->get_name() == "*?" ) { |
---|
| 646 | assert( !appExpr->get_results().empty() ); |
---|
| 647 | assert( !appExpr->get_args().empty() ); |
---|
| 648 | if ( isPolyType( appExpr->get_results().front(), env, scopeTyVars ) ) { |
---|
| 649 | Expression *ret = appExpr->get_args().front(); |
---|
| 650 | delete ret->get_results().front(); |
---|
| 651 | ret->get_results().front() = appExpr->get_results().front()->clone(); |
---|
| 652 | if ( appExpr->get_env() ) { |
---|
| 653 | ret->set_env( appExpr->get_env() ); |
---|
| 654 | appExpr->set_env( 0 ); |
---|
| 655 | } // if |
---|
| 656 | appExpr->get_args().clear(); |
---|
| 657 | delete appExpr; |
---|
| 658 | return ret; |
---|
| 659 | } // if |
---|
| 660 | } else if ( varExpr->get_var()->get_name() == "?++" || varExpr->get_var()->get_name() == "?--" ) { |
---|
| 661 | assert( !appExpr->get_results().empty() ); |
---|
| 662 | assert( appExpr->get_args().size() == 1 ); |
---|
| 663 | if ( TypeInstType *typeInst = isPolyPtr( appExpr->get_results().front(), env, scopeTyVars ) ) { |
---|
| 664 | Type *tempType = appExpr->get_results().front()->clone(); |
---|
| 665 | if ( env ) { |
---|
| 666 | env->apply( tempType ); |
---|
| 667 | } // if |
---|
| 668 | ObjectDecl *newObj = makeTemporary( tempType ); |
---|
| 669 | VariableExpr *tempExpr = new VariableExpr( newObj ); |
---|
| 670 | UntypedExpr *assignExpr = new UntypedExpr( new NameExpr( "?=?" ) ); |
---|
| 671 | assignExpr->get_args().push_back( tempExpr->clone() ); |
---|
| 672 | if ( AddressExpr *address = dynamic_cast< AddressExpr *>( appExpr->get_args().front() ) ) { |
---|
| 673 | assignExpr->get_args().push_back( address->get_arg()->clone() ); |
---|
| 674 | } else { |
---|
| 675 | assignExpr->get_args().push_back( appExpr->get_args().front()->clone() ); |
---|
| 676 | } // if |
---|
| 677 | CommaExpr *firstComma = new CommaExpr( assignExpr, makeIncrDecrExpr( appExpr, typeInst->get_name(), varExpr->get_var()->get_name() == "?++" ) ); |
---|
| 678 | return new CommaExpr( firstComma, tempExpr ); |
---|
| 679 | } // if |
---|
| 680 | } else if ( varExpr->get_var()->get_name() == "++?" || varExpr->get_var()->get_name() == "--?" ) { |
---|
| 681 | assert( !appExpr->get_results().empty() ); |
---|
| 682 | assert( appExpr->get_args().size() == 1 ); |
---|
| 683 | if ( TypeInstType *typeInst = isPolyPtr( appExpr->get_results().front(), env, scopeTyVars ) ) { |
---|
| 684 | return makeIncrDecrExpr( appExpr, typeInst->get_name(), varExpr->get_var()->get_name() == "++?" ); |
---|
| 685 | } // if |
---|
| 686 | } else if ( varExpr->get_var()->get_name() == "?+?" || varExpr->get_var()->get_name() == "?-?" ) { |
---|
| 687 | assert( !appExpr->get_results().empty() ); |
---|
| 688 | assert( appExpr->get_args().size() == 2 ); |
---|
| 689 | TypeInstType *typeInst1 = isPolyPtr( appExpr->get_args().front()->get_results().front(), env, scopeTyVars ); |
---|
| 690 | TypeInstType *typeInst2 = isPolyPtr( appExpr->get_args().back()->get_results().front(), env, scopeTyVars ); |
---|
| 691 | if ( typeInst1 && typeInst2 ) { |
---|
| 692 | UntypedExpr *divide = new UntypedExpr( new NameExpr( "?/?" ) ); |
---|
| 693 | divide->get_args().push_back( appExpr ); |
---|
| 694 | divide->get_args().push_back( new NameExpr( typeInst1->get_name() ) ); |
---|
| 695 | divide->get_results().push_front( appExpr->get_results().front()->clone() ); |
---|
| 696 | if ( appExpr->get_env() ) { |
---|
| 697 | divide->set_env( appExpr->get_env() ); |
---|
| 698 | appExpr->set_env( 0 ); |
---|
| 699 | } // if |
---|
| 700 | return divide; |
---|
| 701 | } else if ( typeInst1 ) { |
---|
| 702 | UntypedExpr *multiply = new UntypedExpr( new NameExpr( "?*?" ) ); |
---|
| 703 | multiply->get_args().push_back( appExpr->get_args().back() ); |
---|
| 704 | multiply->get_args().push_back( new NameExpr( typeInst1->get_name() ) ); |
---|
| 705 | appExpr->get_args().back() = multiply; |
---|
| 706 | } else if ( typeInst2 ) { |
---|
| 707 | UntypedExpr *multiply = new UntypedExpr( new NameExpr( "?*?" ) ); |
---|
| 708 | multiply->get_args().push_back( appExpr->get_args().front() ); |
---|
| 709 | multiply->get_args().push_back( new NameExpr( typeInst2->get_name() ) ); |
---|
| 710 | appExpr->get_args().front() = multiply; |
---|
| 711 | } // if |
---|
| 712 | } else if ( varExpr->get_var()->get_name() == "?+=?" || varExpr->get_var()->get_name() == "?-=?" ) { |
---|
| 713 | assert( !appExpr->get_results().empty() ); |
---|
| 714 | assert( appExpr->get_args().size() == 2 ); |
---|
| 715 | TypeInstType *typeInst = isPolyPtr( appExpr->get_results().front(), env, scopeTyVars ); |
---|
| 716 | if ( typeInst ) { |
---|
| 717 | UntypedExpr *multiply = new UntypedExpr( new NameExpr( "?*?" ) ); |
---|
| 718 | multiply->get_args().push_back( appExpr->get_args().back() ); |
---|
| 719 | multiply->get_args().push_back( new NameExpr( typeInst->get_name() ) ); |
---|
| 720 | appExpr->get_args().back() = multiply; |
---|
| 721 | } // if |
---|
| 722 | } // if |
---|
| 723 | return appExpr; |
---|
| 724 | } // if |
---|
| 725 | } // if |
---|
| 726 | return 0; |
---|
| 727 | } |
---|
| 728 | |
---|
| 729 | Expression *Pass1::mutate( ApplicationExpr *appExpr ) { |
---|
[51b7345] | 730 | /// std::cerr << "mutate appExpr: "; |
---|
[6c3744e] | 731 | /// for ( TyVarMap::iterator i = scopeTyVars.begin(); i != scopeTyVars.end(); ++i ) { |
---|
[51b7345] | 732 | /// std::cerr << i->first << " "; |
---|
| 733 | /// } |
---|
| 734 | /// std::cerr << "\n"; |
---|
[6c3744e] | 735 | bool oldUseRetval = useRetval; |
---|
| 736 | useRetval = false; |
---|
| 737 | appExpr->get_function()->acceptMutator( *this ); |
---|
| 738 | mutateAll( appExpr->get_args(), *this ); |
---|
| 739 | useRetval = oldUseRetval; |
---|
[51b7345] | 740 | |
---|
[6c3744e] | 741 | assert( !appExpr->get_function()->get_results().empty() ); |
---|
| 742 | PointerType *pointer = dynamic_cast< PointerType *>( appExpr->get_function()->get_results().front() ); |
---|
| 743 | assert( pointer ); |
---|
| 744 | FunctionType *function = dynamic_cast< FunctionType *>( pointer->get_base() ); |
---|
| 745 | assert( function ); |
---|
[51b7345] | 746 | |
---|
[6c3744e] | 747 | if ( Expression *newExpr = handleIntrinsics( appExpr ) ) { |
---|
| 748 | return newExpr; |
---|
| 749 | } // if |
---|
[51b7345] | 750 | |
---|
[6c3744e] | 751 | Expression *ret = appExpr; |
---|
[51b7345] | 752 | |
---|
[6c3744e] | 753 | std::list< Expression *>::iterator arg = appExpr->get_args().begin(); |
---|
| 754 | std::list< Expression *>::iterator paramBegin = appExpr->get_args().begin(); |
---|
[51b7345] | 755 | |
---|
[6c3744e] | 756 | std::string typeName; |
---|
| 757 | if ( isPolyRet( function, typeName ) ) { |
---|
| 758 | ret = addPolyRetParam( appExpr, function, typeName, arg ); |
---|
| 759 | } else if ( needsAdapter( function, scopeTyVars ) ) { |
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[51b7345] | 760 | /// std::cerr << "needs adapter: "; |
---|
[6c3744e] | 761 | /// for ( TyVarMap::iterator i = scopeTyVars.begin(); i != scopeTyVars.end(); ++i ) { |
---|
[51b7345] | 762 | /// std::cerr << i->first << " "; |
---|
| 763 | /// } |
---|
| 764 | /// std::cerr << "\n"; |
---|
[6c3744e] | 765 | // change the application so it calls the adapter rather than the passed function |
---|
| 766 | ret = applyAdapter( appExpr, function, arg, scopeTyVars ); |
---|
| 767 | } // if |
---|
| 768 | arg = appExpr->get_args().begin(); |
---|
[51b7345] | 769 | |
---|
[6c3744e] | 770 | TyVarMap exprTyVars; |
---|
| 771 | makeTyVarMap( function, exprTyVars ); |
---|
[51b7345] | 772 | |
---|
[6c3744e] | 773 | passTypeVars( appExpr, arg, exprTyVars ); |
---|
| 774 | addInferredParams( appExpr, function, arg, exprTyVars ); |
---|
[51b7345] | 775 | |
---|
[6c3744e] | 776 | arg = paramBegin; |
---|
[51b7345] | 777 | |
---|
[6c3744e] | 778 | boxParams( appExpr, function, arg, exprTyVars ); |
---|
| 779 | |
---|
| 780 | passAdapters( appExpr, function, exprTyVars ); |
---|
| 781 | |
---|
| 782 | return ret; |
---|
| 783 | } |
---|
| 784 | |
---|
| 785 | Expression *Pass1::mutate( UntypedExpr *expr ) { |
---|
| 786 | if ( !expr->get_results().empty() && isPolyType( expr->get_results().front(), env, scopeTyVars ) ) { |
---|
| 787 | if ( NameExpr *name = dynamic_cast< NameExpr *>( expr->get_function() ) ) { |
---|
| 788 | if ( name->get_name() == "*?" ) { |
---|
| 789 | Expression *ret = expr->get_args().front(); |
---|
| 790 | expr->get_args().clear(); |
---|
| 791 | delete expr; |
---|
| 792 | return ret->acceptMutator( *this ); |
---|
| 793 | } // if |
---|
| 794 | } // if |
---|
| 795 | } // if |
---|
| 796 | return PolyMutator::mutate( expr ); |
---|
| 797 | } |
---|
| 798 | |
---|
| 799 | Expression *Pass1::mutate( AddressExpr *addrExpr ) { |
---|
| 800 | assert( !addrExpr->get_arg()->get_results().empty() ); |
---|
[bdd516a] | 801 | addrExpr->set_arg( mutateExpression( addrExpr->get_arg() ) ); |
---|
[6c3744e] | 802 | if ( isPolyType( addrExpr->get_arg()->get_results().front(), env, scopeTyVars ) ) { |
---|
| 803 | Expression *ret = addrExpr->get_arg(); |
---|
| 804 | delete ret->get_results().front(); |
---|
| 805 | ret->get_results().front() = addrExpr->get_results().front()->clone(); |
---|
| 806 | addrExpr->set_arg( 0 ); |
---|
| 807 | delete addrExpr; |
---|
| 808 | return ret; |
---|
| 809 | } else { |
---|
| 810 | return addrExpr; |
---|
| 811 | } // if |
---|
| 812 | } |
---|
| 813 | |
---|
| 814 | Statement * |
---|
| 815 | Pass1::mutate(ReturnStmt *retStmt) { |
---|
| 816 | // a cast expr on a polymorphic return value is either redundant or invalid |
---|
| 817 | while ( CastExpr *castExpr = dynamic_cast< CastExpr *>( retStmt->get_expr() ) ) { |
---|
| 818 | retStmt->set_expr( castExpr->get_arg() ); |
---|
| 819 | retStmt->get_expr()->set_env( castExpr->get_env() ); |
---|
| 820 | castExpr->set_env( 0 ); |
---|
| 821 | castExpr->set_arg( 0 ); |
---|
| 822 | delete castExpr; |
---|
| 823 | } |
---|
| 824 | if ( retval && retStmt->get_expr() ) { |
---|
| 825 | assert( !retStmt->get_expr()->get_results().empty() ); |
---|
| 826 | if ( retStmt->get_expr()->get_results().front()->get_isLvalue() ) { |
---|
[51b7345] | 827 | /// retStmt->set_expr( mutateExpression( retStmt->get_expr() ) ); |
---|
[6c3744e] | 828 | TypeInstType *typeInst = dynamic_cast< TypeInstType *>( retval->get_type() ); |
---|
| 829 | assert( typeInst ); |
---|
| 830 | std::map< std::string, DeclarationWithType *>::const_iterator assignIter = assignOps.find( typeInst->get_name() ); |
---|
| 831 | if ( assignIter == assignOps.end() ) { |
---|
| 832 | throw SemanticError( "Attempt to return dtype or ftype object in ", retStmt->get_expr() ); |
---|
| 833 | } // if |
---|
| 834 | ApplicationExpr *assignExpr = new ApplicationExpr( new VariableExpr( assignIter->second ) ); |
---|
| 835 | Expression *retParm = new NameExpr( retval->get_name() ); |
---|
| 836 | retParm->get_results().push_back( new PointerType( Type::Qualifiers(), retval->get_type()->clone() ) ); |
---|
| 837 | assignExpr->get_args().push_back( retParm ); |
---|
| 838 | assignExpr->get_args().push_back( retStmt->get_expr() ); |
---|
| 839 | stmtsToAdd.push_back( new ExprStmt( noLabels, mutateExpression( assignExpr ) ) ); |
---|
| 840 | } else { |
---|
| 841 | useRetval = true; |
---|
| 842 | stmtsToAdd.push_back( new ExprStmt( noLabels, mutateExpression( retStmt->get_expr() ) ) ); |
---|
| 843 | useRetval = false; |
---|
| 844 | } // if |
---|
| 845 | retStmt->set_expr( 0 ); |
---|
| 846 | } else { |
---|
| 847 | retStmt->set_expr( mutateExpression( retStmt->get_expr() ) ); |
---|
| 848 | } // if |
---|
| 849 | return retStmt; |
---|
| 850 | } |
---|
| 851 | |
---|
| 852 | Type * |
---|
| 853 | Pass1::mutate( PointerType *pointerType ) { |
---|
| 854 | TyVarMap oldtyVars = scopeTyVars; |
---|
| 855 | makeTyVarMap( pointerType, scopeTyVars ); |
---|
[51b7345] | 856 | |
---|
[6c3744e] | 857 | Type *ret = Mutator::mutate( pointerType ); |
---|
[51b7345] | 858 | |
---|
[6c3744e] | 859 | scopeTyVars = oldtyVars; |
---|
| 860 | return ret; |
---|
| 861 | } |
---|
| 862 | |
---|
| 863 | Type * |
---|
| 864 | Pass1::mutate( FunctionType *functionType ) { |
---|
| 865 | TyVarMap oldtyVars = scopeTyVars; |
---|
| 866 | makeTyVarMap( functionType, scopeTyVars ); |
---|
[51b7345] | 867 | |
---|
[6c3744e] | 868 | Type *ret = Mutator::mutate( functionType ); |
---|
[51b7345] | 869 | |
---|
[6c3744e] | 870 | scopeTyVars = oldtyVars; |
---|
| 871 | return ret; |
---|
| 872 | } |
---|
[51b7345] | 873 | |
---|
[b1a6d6b] | 874 | void Pass1::doBeginScope() { |
---|
| 875 | adapters.push(AdapterMap()); |
---|
| 876 | } |
---|
| 877 | |
---|
[6c3744e] | 878 | void Pass1::doEndScope() { |
---|
[b1a6d6b] | 879 | adapters.pop(); |
---|
[6c3744e] | 880 | } |
---|
[51b7345] | 881 | |
---|
| 882 | ////////////////////////////////////////// Pass2 //////////////////////////////////////////////////// |
---|
| 883 | |
---|
[6c3744e] | 884 | Pass2::Pass2() {} |
---|
| 885 | |
---|
| 886 | void Pass2::addAdapters( FunctionType *functionType ) { |
---|
| 887 | std::list< DeclarationWithType *> ¶mList = functionType->get_parameters(); |
---|
| 888 | std::list< FunctionType *> functions; |
---|
| 889 | for ( std::list< DeclarationWithType *>::iterator arg = paramList.begin(); arg != paramList.end(); ++arg ) { |
---|
| 890 | Type *orig = (*arg)->get_type(); |
---|
| 891 | findAndReplaceFunction( orig, functions, scopeTyVars, needsAdapter ); |
---|
| 892 | (*arg)->set_type( orig ); |
---|
| 893 | } |
---|
| 894 | std::set< std::string > adaptersDone; |
---|
| 895 | for ( std::list< FunctionType *>::iterator funType = functions.begin(); funType != functions.end(); ++funType ) { |
---|
| 896 | std::string mangleName = SymTab::Mangler::mangle( *funType ); |
---|
| 897 | if ( adaptersDone.find( mangleName ) == adaptersDone.end() ) { |
---|
[b1a6d6b] | 898 | std::string adapterName = makeAdapterName( mangleName ); |
---|
| 899 | paramList.push_front( new ObjectDecl( adapterName, Declaration::NoStorageClass, LinkageSpec::C, 0, new PointerType( Type::Qualifiers(), makeAdapterType( *funType, scopeTyVars ) ), 0 ) ); |
---|
[6c3744e] | 900 | adaptersDone.insert( adaptersDone.begin(), mangleName ); |
---|
| 901 | } |
---|
| 902 | } |
---|
[51b7345] | 903 | /// deleteAll( functions ); |
---|
[6c3744e] | 904 | } |
---|
| 905 | |
---|
| 906 | template< typename DeclClass > |
---|
| 907 | DeclClass * |
---|
| 908 | Pass2::handleDecl( DeclClass *decl, Type *type ) { |
---|
| 909 | DeclClass *ret = static_cast< DeclClass *>( Mutator::mutate( decl ) ); |
---|
| 910 | |
---|
| 911 | return ret; |
---|
| 912 | } |
---|
| 913 | |
---|
| 914 | DeclarationWithType * |
---|
| 915 | Pass2::mutate( FunctionDecl *functionDecl ) { |
---|
| 916 | return handleDecl( functionDecl, functionDecl->get_functionType() ); |
---|
| 917 | } |
---|
| 918 | |
---|
| 919 | ObjectDecl * |
---|
| 920 | Pass2::mutate( ObjectDecl *objectDecl ) { |
---|
| 921 | return handleDecl( objectDecl, objectDecl->get_type() ); |
---|
| 922 | } |
---|
| 923 | |
---|
| 924 | TypeDecl * |
---|
| 925 | Pass2::mutate( TypeDecl *typeDecl ) { |
---|
| 926 | scopeTyVars[ typeDecl->get_name() ] = typeDecl->get_kind(); |
---|
| 927 | if ( typeDecl->get_base() ) { |
---|
| 928 | return handleDecl( typeDecl, typeDecl->get_base() ); |
---|
| 929 | } else { |
---|
| 930 | return Mutator::mutate( typeDecl ); |
---|
| 931 | } |
---|
| 932 | } |
---|
| 933 | |
---|
| 934 | TypedefDecl * |
---|
| 935 | Pass2::mutate( TypedefDecl *typedefDecl ) { |
---|
| 936 | return handleDecl( typedefDecl, typedefDecl->get_base() ); |
---|
| 937 | } |
---|
| 938 | |
---|
| 939 | Type * |
---|
| 940 | Pass2::mutate( PointerType *pointerType ) { |
---|
| 941 | TyVarMap oldtyVars = scopeTyVars; |
---|
| 942 | makeTyVarMap( pointerType, scopeTyVars ); |
---|
[51b7345] | 943 | |
---|
[6c3744e] | 944 | Type *ret = Mutator::mutate( pointerType ); |
---|
[51b7345] | 945 | |
---|
[6c3744e] | 946 | scopeTyVars = oldtyVars; |
---|
| 947 | return ret; |
---|
| 948 | } |
---|
| 949 | |
---|
| 950 | Type *Pass2::mutate( FunctionType *funcType ) { |
---|
| 951 | TyVarMap oldtyVars = scopeTyVars; |
---|
| 952 | makeTyVarMap( funcType, scopeTyVars ); |
---|
[51b7345] | 953 | |
---|
[6c3744e] | 954 | std::string typeName; |
---|
| 955 | if ( isPolyRet( funcType, typeName ) ) { |
---|
| 956 | DeclarationWithType *ret = funcType->get_returnVals().front(); |
---|
| 957 | ret->set_type( new PointerType( Type::Qualifiers(), ret->get_type() ) ); |
---|
| 958 | funcType->get_parameters().push_front( ret ); |
---|
| 959 | funcType->get_returnVals().pop_front(); |
---|
| 960 | } |
---|
[51b7345] | 961 | |
---|
[6c3744e] | 962 | std::list< DeclarationWithType *>::iterator last = funcType->get_parameters().begin(); |
---|
| 963 | std::list< DeclarationWithType *> inferredParams; |
---|
| 964 | ObjectDecl *newObj = new ObjectDecl( "", Declaration::NoStorageClass, LinkageSpec::C, 0, new BasicType( Type::Qualifiers(), BasicType::LongUnsignedInt ), 0 ); |
---|
[51b7345] | 965 | /// ObjectDecl *newFunPtr = new ObjectDecl( "", Declaration::NoStorageClass, LinkageSpec::Cforall, 0, new PointerType( Type::Qualifiers(), new FunctionType( Type::Qualifiers(), true ) ), 0 ); |
---|
[6c3744e] | 966 | for ( std::list< TypeDecl *>::const_iterator tyParm = funcType->get_forall().begin(); tyParm != funcType->get_forall().end(); ++tyParm ) { |
---|
| 967 | ObjectDecl *thisParm; |
---|
| 968 | if ( (*tyParm)->get_kind() == TypeDecl::Any ) { |
---|
| 969 | thisParm = newObj->clone(); |
---|
| 970 | thisParm->set_name( (*tyParm)->get_name() ); |
---|
| 971 | last = funcType->get_parameters().insert( last, thisParm ); |
---|
| 972 | ++last; |
---|
| 973 | } |
---|
| 974 | for ( std::list< DeclarationWithType *>::iterator assert = (*tyParm)->get_assertions().begin(); assert != (*tyParm)->get_assertions().end(); ++assert ) { |
---|
| 975 | /// *assert = (*assert)->acceptMutator( *this ); |
---|
| 976 | inferredParams.push_back( *assert ); |
---|
| 977 | } |
---|
| 978 | (*tyParm)->get_assertions().clear(); |
---|
| 979 | } |
---|
| 980 | delete newObj; |
---|
| 981 | funcType->get_parameters().splice( last, inferredParams ); |
---|
| 982 | addAdapters( funcType ); |
---|
| 983 | mutateAll( funcType->get_returnVals(), *this ); |
---|
| 984 | mutateAll( funcType->get_parameters(), *this ); |
---|
[51b7345] | 985 | |
---|
[6c3744e] | 986 | scopeTyVars = oldtyVars; |
---|
| 987 | return funcType; |
---|
| 988 | } |
---|
[51b7345] | 989 | |
---|
| 990 | ////////////////////////////////////////// Pass3 //////////////////////////////////////////////////// |
---|
| 991 | |
---|
[6c3744e] | 992 | template< typename DeclClass > |
---|
| 993 | DeclClass * |
---|
| 994 | Pass3::handleDecl( DeclClass *decl, Type *type ) { |
---|
| 995 | TyVarMap oldtyVars = scopeTyVars; |
---|
| 996 | makeTyVarMap( type, scopeTyVars ); |
---|
[51b7345] | 997 | |
---|
[6c3744e] | 998 | DeclClass *ret = static_cast< DeclClass *>( Mutator::mutate( decl ) ); |
---|
| 999 | ScrubTyVars::scrub( decl, scopeTyVars ); |
---|
| 1000 | |
---|
| 1001 | scopeTyVars = oldtyVars; |
---|
| 1002 | return ret; |
---|
| 1003 | } |
---|
| 1004 | |
---|
| 1005 | ObjectDecl * |
---|
| 1006 | Pass3::mutate( ObjectDecl *objectDecl ) { |
---|
| 1007 | return handleDecl( objectDecl, objectDecl->get_type() ); |
---|
| 1008 | } |
---|
| 1009 | |
---|
| 1010 | DeclarationWithType * |
---|
| 1011 | Pass3::mutate( FunctionDecl *functionDecl ) { |
---|
| 1012 | return handleDecl( functionDecl, functionDecl->get_functionType() ); |
---|
| 1013 | } |
---|
| 1014 | |
---|
| 1015 | TypedefDecl * |
---|
| 1016 | Pass3::mutate( TypedefDecl *typedefDecl ) { |
---|
| 1017 | return handleDecl( typedefDecl, typedefDecl->get_base() ); |
---|
| 1018 | } |
---|
| 1019 | |
---|
| 1020 | TypeDecl * |
---|
| 1021 | Pass3::mutate( TypeDecl *typeDecl ) { |
---|
[51b7345] | 1022 | /// Initializer *init = 0; |
---|
| 1023 | /// std::list< Expression *> designators; |
---|
| 1024 | /// scopeTyVars[ typeDecl->get_name() ] = typeDecl->get_kind(); |
---|
[6c3744e] | 1025 | /// if ( typeDecl->get_base() ) { |
---|
[51b7345] | 1026 | /// init = new SimpleInit( new SizeofExpr( handleDecl( typeDecl, typeDecl->get_base() ) ), designators ); |
---|
| 1027 | /// } |
---|
| 1028 | /// return new ObjectDecl( typeDecl->get_name(), Declaration::Extern, LinkageSpec::C, 0, new BasicType( Type::Qualifiers(), BasicType::UnsignedInt ), init ); |
---|
| 1029 | |
---|
[6c3744e] | 1030 | scopeTyVars[ typeDecl->get_name() ] = typeDecl->get_kind(); |
---|
| 1031 | return Mutator::mutate( typeDecl ); |
---|
| 1032 | } |
---|
[51b7345] | 1033 | |
---|
[6c3744e] | 1034 | Type * |
---|
| 1035 | Pass3::mutate( PointerType *pointerType ) { |
---|
| 1036 | TyVarMap oldtyVars = scopeTyVars; |
---|
| 1037 | makeTyVarMap( pointerType, scopeTyVars ); |
---|
[51b7345] | 1038 | |
---|
[6c3744e] | 1039 | Type *ret = Mutator::mutate( pointerType ); |
---|
[51b7345] | 1040 | |
---|
[6c3744e] | 1041 | scopeTyVars = oldtyVars; |
---|
| 1042 | return ret; |
---|
| 1043 | } |
---|
| 1044 | |
---|
| 1045 | Type * |
---|
| 1046 | Pass3::mutate( FunctionType *functionType ) { |
---|
| 1047 | TyVarMap oldtyVars = scopeTyVars; |
---|
| 1048 | makeTyVarMap( functionType, scopeTyVars ); |
---|
[51b7345] | 1049 | |
---|
[6c3744e] | 1050 | Type *ret = Mutator::mutate( functionType ); |
---|
[51b7345] | 1051 | |
---|
[6c3744e] | 1052 | scopeTyVars = oldtyVars; |
---|
| 1053 | return ret; |
---|
| 1054 | } |
---|
| 1055 | |
---|
| 1056 | Statement *Pass3::mutate( DeclStmt *declStmt ) { |
---|
| 1057 | if ( ObjectDecl *objectDecl = dynamic_cast< ObjectDecl *>( declStmt->get_decl() ) ) { |
---|
| 1058 | if ( isPolyVal( objectDecl->get_type(), scopeTyVars ) ) { |
---|
| 1059 | TypeInstType *typeInst = dynamic_cast< TypeInstType *>( objectDecl->get_type() ); |
---|
| 1060 | assert( typeInst ); |
---|
| 1061 | UntypedExpr *alloc = new UntypedExpr( new NameExpr( "alloca" ) ); |
---|
| 1062 | alloc->get_args().push_back( new NameExpr( typeInst->get_name() ) ); |
---|
| 1063 | UntypedExpr *assign = new UntypedExpr( new NameExpr( "?=?" ) ); |
---|
| 1064 | assign->get_args().push_back( new VariableExpr( objectDecl ) ); |
---|
| 1065 | assign->get_args().push_back( alloc ); |
---|
| 1066 | stmtsToAddAfter.push_back( new ExprStmt( noLabels, assign ) ); |
---|
| 1067 | } |
---|
| 1068 | } |
---|
| 1069 | return Mutator::mutate( declStmt ); |
---|
| 1070 | } |
---|
[51b7345] | 1071 | |
---|
[6c3744e] | 1072 | } // anonymous namespace |
---|
[51b7345] | 1073 | |
---|
| 1074 | } // namespace GenPoly |
---|