source: src/GenPoly/GenPoly.cc@ 0cb1d61

ADT aaron-thesis arm-eh ast-experimental cleanup-dtors ctor deferred_resn demangler enum forall-pointer-decay gc_noraii jacob/cs343-translation jenkins-sandbox memory new-ast new-ast-unique-expr new-env no_list persistent-indexer pthread-emulation qualifiedEnum resolv-new string with_gc
Last change on this file since 0cb1d61 was bfae637, checked in by Aaron Moss <a3moss@…>, 10 years ago

Initial compiling build with TyVarMap as ErasableScopedMap
  • Property mode set to 100644
File size: 7.6 KB
RevLine 
[51587aa]1//
2// Cforall Version 1.0.0 Copyright (C) 2015 University of Waterloo
3//
4// The contents of this file are covered under the licence agreement in the
5// file "LICENCE" distributed with Cforall.
6//
[01aeade]7// GenPoly.cc --
[51587aa]8//
9// Author : Richard C. Bilson
10// Created On : Mon May 18 07:44:20 2015
[cf16f94]11// Last Modified By : Peter A. Buhr
[4389966]12// Last Modified On : Tue Dec 15 16:11:18 2015
13// Update Count : 13
[51587aa]14//
[51b73452]15
16#include "GenPoly.h"
[ffad73a]17
18#include "SynTree/Expression.h"
[51b73452]19#include "SynTree/Type.h"
20
[b1a6d6b]21#include <iostream>
22using namespace std;
[51b73452]23
24namespace GenPoly {
[e56cfdb0]25 bool needsAdapter( FunctionType *adaptee, const TyVarMap &tyVars ) {
[ffad73a]26 if ( ! adaptee->get_returnVals().empty() && isPolyType( adaptee->get_returnVals().front()->get_type(), tyVars ) ) {
[e56cfdb0]27 return true;
28 } // if
29 for ( std::list< DeclarationWithType* >::const_iterator innerArg = adaptee->get_parameters().begin(); innerArg != adaptee->get_parameters().end(); ++innerArg ) {
[ffad73a]30 if ( isPolyType( (*innerArg)->get_type(), tyVars ) ) {
[e56cfdb0]31 return true;
32 } // if
33 } // for
34 return false;
35 }
36
[aadc9a4]37 ReferenceToType *isPolyRet( FunctionType *function ) {
[e56cfdb0]38 if ( ! function->get_returnVals().empty() ) {
[bfae637]39 TyVarMap forallTypes( (TypeDecl::Kind)-1 );
[aadc9a4]40 makeTyVarMap( function, forallTypes );
41 return (ReferenceToType*)isPolyType( function->get_returnVals().front()->get_type(), forallTypes );
[e56cfdb0]42 } // if
[aadc9a4]43 return 0;
[01aeade]44 }
[b1a6d6b]45
[ffad73a]46 namespace {
[0f889a77]47 /// Checks a parameter list for polymorphic parameters; will substitute according to env if present
48 bool hasPolyParams( std::list< Expression* >& params, const TypeSubstitution *env ) {
49 for ( std::list< Expression* >::iterator param = params.begin(); param != params.end(); ++param ) {
50 TypeExpr *paramType = dynamic_cast< TypeExpr* >( *param );
51 assert(paramType && "Aggregate parameters should be type expressions");
52 if ( isPolyType( paramType->get_type(), env ) ) return true;
53 }
54 return false;
55 }
56
57 /// Checks a parameter list for polymorphic parameters from tyVars; will substitute according to env if present
[ffad73a]58 bool hasPolyParams( std::list< Expression* >& params, const TyVarMap &tyVars, const TypeSubstitution *env ) {
59 for ( std::list< Expression* >::iterator param = params.begin(); param != params.end(); ++param ) {
60 TypeExpr *paramType = dynamic_cast< TypeExpr* >( *param );
61 assert(paramType && "Aggregate parameters should be type expressions");
62 if ( isPolyType( paramType->get_type(), tyVars, env ) ) return true;
63 }
64 return false;
65 }
66 }
[0f889a77]67
68 Type *isPolyType( Type *type, const TypeSubstitution *env ) {
69 if ( TypeInstType *typeInst = dynamic_cast< TypeInstType * >( type ) ) {
70 if ( env ) {
71 if ( Type *newType = env->lookup( typeInst->get_name() ) ) {
72 return isPolyType( newType, env );
73 } // if
74 } // if
75 return type;
76 } else if ( StructInstType *structType = dynamic_cast< StructInstType* >( type ) ) {
77 if ( hasPolyParams( structType->get_parameters(), env ) ) return type;
78 } else if ( UnionInstType *unionType = dynamic_cast< UnionInstType* >( type ) ) {
79 if ( hasPolyParams( unionType->get_parameters(), env ) ) return type;
80 }
81 return 0;
82 }
[ffad73a]83
84 Type *isPolyType( Type *type, const TyVarMap &tyVars, const TypeSubstitution *env ) {
[e56cfdb0]85 if ( TypeInstType *typeInst = dynamic_cast< TypeInstType * >( type ) ) {
[ffad73a]86 if ( env ) {
87 if ( Type *newType = env->lookup( typeInst->get_name() ) ) {
88 return isPolyType( newType, tyVars, env );
[0f889a77]89 } // if
[01aeade]90 } // if
[ffad73a]91 if ( tyVars.find( typeInst->get_name() ) != tyVars.end() ) {
92 return type;
[0f889a77]93 }
[ffad73a]94 } else if ( StructInstType *structType = dynamic_cast< StructInstType* >( type ) ) {
95 if ( hasPolyParams( structType->get_parameters(), tyVars, env ) ) return type;
96 } else if ( UnionInstType *unionType = dynamic_cast< UnionInstType* >( type ) ) {
97 if ( hasPolyParams( unionType->get_parameters(), tyVars, env ) ) return type;
98 }
99 return 0;
[01aeade]100 }
[b1a6d6b]101
[0f889a77]102 Type *isPolyPtr( Type *type, const TypeSubstitution *env ) {
103 if ( PointerType *ptr = dynamic_cast< PointerType *>( type ) ) {
104 return isPolyType( ptr->get_base(), env );
105 } else if ( env ) {
106 if ( TypeInstType *typeInst = dynamic_cast< TypeInstType *>( type ) ) {
107 if ( Type *newType = env->lookup( typeInst->get_name() ) ) {
108 return isPolyPtr( newType, env );
109 } // if
110 } // if
111 } // if
112 return 0;
113 }
114
[ffad73a]115 Type *isPolyPtr( Type *type, const TyVarMap &tyVars, const TypeSubstitution *env ) {
116 if ( PointerType *ptr = dynamic_cast< PointerType *>( type ) ) {
117 return isPolyType( ptr->get_base(), tyVars, env );
118 } else if ( env ) {
119 if ( TypeInstType *typeInst = dynamic_cast< TypeInstType *>( type ) ) {
120 if ( Type *newType = env->lookup( typeInst->get_name() ) ) {
121 return isPolyPtr( newType, tyVars, env );
122 } // if
123 } // if
124 } // if
125 return 0;
[bdf1954]126 }
127
[8488c715]128 Type * hasPolyBase( Type *type, int *levels, const TypeSubstitution *env ) {
129 int dummy;
130 if ( ! levels ) { levels = &dummy; }
131 *levels = 0;
132
133 while ( true ) {
134 if ( PointerType *ptr = dynamic_cast< PointerType *>( type ) ) {
135 type = ptr->get_base();
136 ++(*levels);
137 } else if ( env ) {
138 if ( TypeInstType *typeInst = dynamic_cast< TypeInstType *>( type ) ) {
139 if ( Type *newType = env->lookup( typeInst->get_name() ) ) {
140 type = newType;
141 } else break;
142 } else break;
143 } else break;
[05d47278]144 }
145
146 return isPolyType( type, env );
147 }
148
[8488c715]149 Type * hasPolyBase( Type *type, const TyVarMap &tyVars, int *levels, const TypeSubstitution *env ) {
150 int dummy;
151 if ( ! levels ) { levels = &dummy; }
152 *levels = 0;
153
154 while ( true ) {
155 if ( PointerType *ptr = dynamic_cast< PointerType *>( type ) ) {
156 type = ptr->get_base();
157 ++(*levels);
158 } else if ( env ) {
159 if ( TypeInstType *typeInst = dynamic_cast< TypeInstType *>( type ) ) {
160 if ( Type *newType = env->lookup( typeInst->get_name() ) ) {
161 type = newType;
162 } else break;
163 } else break;
164 } else break;
[05d47278]165 }
166
167 return isPolyType( type, tyVars, env );
168 }
169
[7754cde]170 FunctionType * getFunctionType( Type *ty ) {
171 PointerType *ptrType;
172 if ( ( ptrType = dynamic_cast< PointerType* >( ty ) ) ) {
173 return dynamic_cast< FunctionType* >( ptrType->get_base() ); // pointer if FunctionType, NULL otherwise
174 } else {
175 return dynamic_cast< FunctionType* >( ty ); // pointer if FunctionType, NULL otherwise
176 }
177 }
178
[8488c715]179 VariableExpr * getBaseVar( Expression *expr, int *levels ) {
180 int dummy;
181 if ( ! levels ) { levels = &dummy; }
182 *levels = 0;
183
184 while ( true ) {
185 if ( VariableExpr *varExpr = dynamic_cast< VariableExpr* >( expr ) ) {
186 return varExpr;
187 } else if ( AddressExpr *addressExpr = dynamic_cast< AddressExpr* >( expr ) ) {
188 expr = addressExpr->get_arg();
189 } else if ( UntypedExpr *untypedExpr = dynamic_cast< UntypedExpr* >( expr ) ) {
190 // look for compiler-inserted dereference operator
191 NameExpr *fn = dynamic_cast< NameExpr* >( untypedExpr->get_function() );
192 if ( ! fn || fn->get_name() != std::string("*?") ) return 0;
193 expr = *untypedExpr->begin_args();
194 } else break;
195
196 ++(*levels);
197 }
198
199 return 0;
[05d47278]200 }
201
[aadc9a4]202 void makeTyVarMap( Type *type, TyVarMap &tyVarMap ) {
203 for ( std::list< TypeDecl* >::const_iterator tyVar = type->get_forall().begin(); tyVar != type->get_forall().end(); ++tyVar ) {
204 assert( *tyVar );
205 tyVarMap[ (*tyVar)->get_name() ] = (*tyVar)->get_kind();
206 }
207 if ( PointerType *pointer = dynamic_cast< PointerType* >( type ) ) {
208 makeTyVarMap( pointer->get_base(), tyVarMap );
209 }
210 }
211
[01aeade]212 void printTyVarMap( std::ostream &os, const TyVarMap &tyVarMap ) {
213 for ( TyVarMap::const_iterator i = tyVarMap.begin(); i != tyVarMap.end(); ++i ) {
214 os << i->first << " (" << i->second << ") ";
215 } // for
216 os << std::endl;
217 }
[ffad73a]218
[51b73452]219} // namespace GenPoly
[01aeade]220
[51587aa]221// Local Variables: //
222// tab-width: 4 //
223// mode: c++ //
224// compile-command: "make install" //
225// End: //
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