source: src/GenPoly/Box.cc@ 7cd23d5

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 7cd23d5 was bdf1954, checked in by Rob Schluntz <rschlunt@…>, 10 years ago

removed polyret adapter name mangling for more general poly/mono suffix
  • Property mode set to 100644
File size: 46.9 KB
Line 
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//
7// Box.cc --
8//
9// Author : Richard C. Bilson
10// Created On : Mon May 18 07:44:20 2015
11// Last Modified By : Rob Schluntz
12// Last Modified On : Tue Nov 24 15:59:33 2015
13// Update Count : 169
14//
15
16#include <set>
17#include <stack>
18#include <string>
19#include <iterator>
20#include <algorithm>
21#include <cassert>
22
23#include "Box.h"
24#include "PolyMutator.h"
25#include "FindFunction.h"
26#include "ScrubTyVars.h"
27
28#include "Parser/ParseNode.h"
29
30#include "SynTree/Type.h"
31#include "SynTree/Expression.h"
32#include "SynTree/Initializer.h"
33#include "SynTree/Statement.h"
34#include "SynTree/Mutator.h"
35
36#include "ResolvExpr/TypeEnvironment.h"
37
38#include "SymTab/Mangler.h"
39
40#include "SemanticError.h"
41#include "UniqueName.h"
42#include "utility.h"
43
44#include <ext/functional> // temporary
45
46namespace GenPoly {
47 namespace {
48 const std::list<Label> noLabels;
49
50 FunctionType *makeAdapterType( FunctionType *adaptee, const TyVarMap &tyVars );
51
52 class Pass1 : public PolyMutator {
53 public:
54 Pass1();
55 virtual Expression *mutate( ApplicationExpr *appExpr );
56 virtual Expression *mutate( AddressExpr *addrExpr );
57 virtual Expression *mutate( UntypedExpr *expr );
58 virtual DeclarationWithType* mutate( FunctionDecl *functionDecl );
59 virtual TypeDecl *mutate( TypeDecl *typeDecl );
60 virtual Expression *mutate( CommaExpr *commaExpr );
61 virtual Expression *mutate( ConditionalExpr *condExpr );
62 virtual Statement *mutate(ReturnStmt *catchStmt);
63 virtual Type *mutate( PointerType *pointerType );
64 virtual Type *mutate( FunctionType *pointerType );
65
66 virtual void doBeginScope();
67 virtual void doEndScope();
68 private:
69 void passTypeVars( ApplicationExpr *appExpr, std::list< Expression *>::iterator &arg, const TyVarMap &exprTyVars );
70 Expression *addRetParam( ApplicationExpr *appExpr, FunctionType *function, Type *retType, std::list< Expression *>::iterator &arg );
71 Expression *addPolyRetParam( ApplicationExpr *appExpr, FunctionType *function, std::string typeName, std::list< Expression *>::iterator &arg );
72 Expression *applyAdapter( ApplicationExpr *appExpr, FunctionType *function, std::list< Expression *>::iterator &arg, const TyVarMap &exprTyVars );
73 void boxParam( Type *formal, Expression *&arg, const TyVarMap &exprTyVars );
74 void boxParams( ApplicationExpr *appExpr, FunctionType *function, std::list< Expression *>::iterator &arg, const TyVarMap &exprTyVars );
75 void addInferredParams( ApplicationExpr *appExpr, FunctionType *functionType, std::list< Expression *>::iterator &arg, const TyVarMap &tyVars );
76 void findAssignOps( const std::list< TypeDecl *> &forall );
77 void passAdapters( ApplicationExpr *appExpr, FunctionType *functionType, const TyVarMap &exprTyVars );
78 FunctionDecl *makeAdapter( FunctionType *adaptee, FunctionType *realType, const std::string &mangleName, const TyVarMap &tyVars );
79 Expression *handleIntrinsics( ApplicationExpr *appExpr );
80 ObjectDecl *makeTemporary( Type *type );
81
82 typedef std::map< std::string, DeclarationWithType *> AdapterMap;
83 std::map< std::string, DeclarationWithType *> assignOps;
84 std::stack< AdapterMap > adapters;
85 DeclarationWithType *retval;
86 bool useRetval;
87 UniqueName tempNamer;
88 };
89
90 class Pass2 : public PolyMutator {
91 public:
92 Pass2();
93 template< typename DeclClass >
94 DeclClass *handleDecl( DeclClass *decl, Type *type );
95 virtual DeclarationWithType *mutate( FunctionDecl *functionDecl );
96 virtual ObjectDecl *mutate( ObjectDecl *objectDecl );
97 virtual TypeDecl *mutate( TypeDecl *typeDecl );
98 virtual TypedefDecl *mutate( TypedefDecl *typedefDecl );
99 virtual Type *mutate( PointerType *pointerType );
100 virtual Type *mutate( FunctionType *funcType );
101 private:
102 void addAdapters( FunctionType *functionType );
103
104 std::map< UniqueId, std::string > adapterName;
105 };
106
107 class Pass3 : public PolyMutator {
108 public:
109 template< typename DeclClass >
110 DeclClass *handleDecl( DeclClass *decl, Type *type );
111 virtual DeclarationWithType *mutate( FunctionDecl *functionDecl );
112 virtual ObjectDecl *mutate( ObjectDecl *objectDecl );
113 virtual TypedefDecl *mutate( TypedefDecl *objectDecl );
114 virtual TypeDecl *mutate( TypeDecl *objectDecl );
115 virtual Statement *mutate( DeclStmt *declStmt );
116 virtual Type *mutate( PointerType *pointerType );
117 virtual Type *mutate( FunctionType *funcType );
118 private:
119 };
120
121 } // anonymous namespace
122
123 void printAllNotBuiltin( const std::list< Declaration *>& translationUnit, std::ostream &os ) {
124 for ( std::list< Declaration *>::const_iterator i = translationUnit.begin(); i != translationUnit.end(); ++i ) {
125 if ( ! LinkageSpec::isBuiltin( (*i)->get_linkage() ) ) {
126 (*i)->print( os );
127 os << std::endl;
128 } // if
129 } // for
130 }
131
132 void box( std::list< Declaration *>& translationUnit ) {
133 Pass1 pass1;
134 Pass2 pass2;
135 Pass3 pass3;
136 mutateAll( translationUnit, pass1 );
137 mutateAll( translationUnit, pass2 );
138 mutateAll( translationUnit, pass3 );
139 }
140
141 ////////////////////////////////////////// Pass1 ////////////////////////////////////////////////////
142
143 namespace {
144 std::string makePolyMonoSuffix( FunctionType * function, const TyVarMap &tyVars ) {
145 std::stringstream name;
146
147 // if the return type or a parameter type involved polymorphic types, then the adapter will need
148 // to take those polymorphic types as pointers. Therefore, there can be two different functions
149 // with the same mangled name, so we need to further mangle the names.
150 if ( isPolyRet( function, tyVars ) ) {
151 name << "P";
152 } else {
153 name << "M";
154 }
155 name << "_";
156 std::list< DeclarationWithType *> &paramList = function->get_parameters();
157 for ( std::list< DeclarationWithType *>::iterator arg = paramList.begin(); arg != paramList.end(); ++arg ) {
158 if ( isPolyObj( (*arg)->get_type(), tyVars ) ) {
159 name << "P";
160 } else {
161 name << "M";
162 }
163 } // for
164 return name.str();
165 }
166
167 std::string mangleAdapterName( FunctionType * function, const TyVarMap &tyVars ) {
168 return SymTab::Mangler::mangle( function ) + makePolyMonoSuffix( function, tyVars );
169 }
170
171 std::string makeAdapterName( const std::string &mangleName ) {
172 return "_adapter" + mangleName;
173 }
174
175 Pass1::Pass1()
176 : useRetval( false ), tempNamer( "_temp" ) {
177 adapters.push(AdapterMap());
178 }
179
180 bool checkAssignment( DeclarationWithType *decl, std::string &name ) {
181 if ( decl->get_name() == "?=?" ) {
182 if ( PointerType *ptrType = dynamic_cast< PointerType *>( decl->get_type() ) ) {
183 if ( FunctionType *funType = dynamic_cast< FunctionType *>( ptrType->get_base() ) ) {
184 if ( funType->get_parameters().size() == 2 ) {
185 if ( PointerType *pointer = dynamic_cast< PointerType *>( funType->get_parameters().front()->get_type() ) ) {
186 if ( TypeInstType *typeInst = dynamic_cast< TypeInstType *>( pointer->get_base() ) ) {
187 name = typeInst->get_name();
188 return true;
189 } // if
190 } // if
191 } // if
192 } // if
193 } // if
194 } // if
195 return false;
196 }
197
198 void Pass1::findAssignOps( const std::list< TypeDecl *> &forall ) {
199 assignOps.clear();
200 for ( std::list< TypeDecl *>::const_iterator i = forall.begin(); i != forall.end(); ++i ) {
201 for ( std::list< DeclarationWithType *>::const_iterator assert = (*i)->get_assertions().begin(); assert != (*i)->get_assertions().end(); ++assert ) {
202 std::string typeName;
203 if ( checkAssignment( *assert, typeName ) ) {
204 assignOps[ typeName ] = *assert;
205 } // if
206 } // for
207 } // for
208 }
209
210 DeclarationWithType *Pass1::mutate( FunctionDecl *functionDecl ) {
211 if ( functionDecl->get_statements() ) { // empty routine body ?
212 doBeginScope();
213 TyVarMap oldtyVars = scopeTyVars;
214 DeclarationWithType *oldRetval = retval;
215 bool oldUseRetval = useRetval;
216
217 // process polymorphic return value
218 retval = 0;
219 std::string typeName;
220 if ( isPolyRet( functionDecl->get_functionType(), typeName ) && functionDecl->get_linkage() == LinkageSpec::Cforall ) {
221 retval = functionDecl->get_functionType()->get_returnVals().front();
222
223 // give names to unnamed return values
224 if ( retval->get_name() == "" ) {
225 retval->set_name( "_retparm" );
226 retval->set_linkage( LinkageSpec::C );
227 } // if
228 } // if
229
230 FunctionType *functionType = functionDecl->get_functionType();
231 makeTyVarMap( functionDecl->get_functionType(), scopeTyVars );
232 findAssignOps( functionDecl->get_functionType()->get_forall() );
233
234 std::list< DeclarationWithType *> &paramList = functionType->get_parameters();
235 std::list< FunctionType *> functions;
236 for ( std::list< TypeDecl *>::iterator tyVar = functionType->get_forall().begin(); tyVar != functionType->get_forall().end(); ++tyVar ) {
237 for ( std::list< DeclarationWithType *>::iterator assert = (*tyVar)->get_assertions().begin(); assert != (*tyVar)->get_assertions().end(); ++assert ) {
238 findFunction( (*assert)->get_type(), functions, scopeTyVars, needsAdapter );
239 } // for
240 } // for
241 for ( std::list< DeclarationWithType *>::iterator arg = paramList.begin(); arg != paramList.end(); ++arg ) {
242 findFunction( (*arg)->get_type(), functions, scopeTyVars, needsAdapter );
243 } // for
244 AdapterMap & adapters = Pass1::adapters.top();
245 for ( std::list< FunctionType *>::iterator funType = functions.begin(); funType != functions.end(); ++funType ) {
246 std::string mangleName = mangleAdapterName( *funType, scopeTyVars );
247 if ( adapters.find( mangleName ) == adapters.end() ) {
248 std::string adapterName = makeAdapterName( mangleName );
249 adapters.insert( std::pair< std::string, DeclarationWithType *>( mangleName, new ObjectDecl( adapterName, DeclarationNode::NoStorageClass, LinkageSpec::C, 0, new PointerType( Type::Qualifiers(), makeAdapterType( *funType, scopeTyVars ) ), 0 ) ) );
250 } // if
251 } // for
252
253 functionDecl->set_statements( functionDecl->get_statements()->acceptMutator( *this ) );
254
255 scopeTyVars = oldtyVars;
256 // std::cerr << "end FunctionDecl: ";
257 // for ( TyVarMap::iterator i = scopeTyVars.begin(); i != scopeTyVars.end(); ++i ) {
258 // std::cerr << i->first << " ";
259 // }
260 // std::cerr << "\n";
261 retval = oldRetval;
262 useRetval = oldUseRetval;
263 doEndScope();
264 } // if
265 return functionDecl;
266 }
267
268 TypeDecl *Pass1::mutate( TypeDecl *typeDecl ) {
269/// std::cerr << "add " << typeDecl->get_name() << "\n";
270 scopeTyVars[ typeDecl->get_name() ] = typeDecl->get_kind();
271 return Mutator::mutate( typeDecl );
272 }
273
274 Expression *Pass1::mutate( CommaExpr *commaExpr ) {
275 bool oldUseRetval = useRetval;
276 useRetval = false;
277 commaExpr->set_arg1( maybeMutate( commaExpr->get_arg1(), *this ) );
278 useRetval = oldUseRetval;
279 commaExpr->set_arg2( maybeMutate( commaExpr->get_arg2(), *this ) );
280 return commaExpr;
281 }
282
283 Expression *Pass1::mutate( ConditionalExpr *condExpr ) {
284 bool oldUseRetval = useRetval;
285 useRetval = false;
286 condExpr->set_arg1( maybeMutate( condExpr->get_arg1(), *this ) );
287 useRetval = oldUseRetval;
288 condExpr->set_arg2( maybeMutate( condExpr->get_arg2(), *this ) );
289 condExpr->set_arg3( maybeMutate( condExpr->get_arg3(), *this ) );
290 return condExpr;
291
292 }
293
294 void Pass1::passTypeVars( ApplicationExpr *appExpr, std::list< Expression *>::iterator &arg, const TyVarMap &exprTyVars ) {
295 for ( TyVarMap::const_iterator tyParm = exprTyVars.begin(); tyParm != exprTyVars.end(); ++tyParm ) {
296 ResolvExpr::EqvClass eqvClass;
297 assert( env );
298 if ( tyParm->second == TypeDecl::Any ) {
299 Type *concrete = env->lookup( tyParm->first );
300 if ( concrete ) {
301 arg = appExpr->get_args().insert( arg, new SizeofExpr( concrete->clone() ) );
302 arg++;
303 } else {
304 throw SemanticError( "unbound type variable in application ", appExpr );
305 } // if
306 } // if
307 } // for
308 }
309
310 ObjectDecl *Pass1::makeTemporary( Type *type ) {
311 ObjectDecl *newObj = new ObjectDecl( tempNamer.newName(), DeclarationNode::NoStorageClass, LinkageSpec::C, 0, type, 0 );
312 stmtsToAdd.push_back( new DeclStmt( noLabels, newObj ) );
313 return newObj;
314 }
315
316 TypeInstType *isPolyType( Type *type, const TypeSubstitution *env, const TyVarMap &tyVars ) {
317 if ( TypeInstType *typeInst = dynamic_cast< TypeInstType *>( type ) ) {
318 if ( env ) {
319 if ( Type *newType = env->lookup( typeInst->get_name() ) ) {
320 return isPolyType( newType, env, tyVars );
321 } // if
322 } // if
323 if ( tyVars.find( typeInst->get_name() ) != tyVars.end() ) {
324 return typeInst;
325 } else {
326 return 0;
327 } // if
328 } else {
329 return 0;
330 } // if
331 }
332
333 Expression *Pass1::addRetParam( ApplicationExpr *appExpr, FunctionType *function, Type *retType, std::list< Expression *>::iterator &arg ) {
334 if ( useRetval ) {
335 assert( retval );
336 arg = appExpr->get_args().insert( arg, new VariableExpr( retval ) );
337 arg++;
338 } else {
339 ObjectDecl *newObj = makeTemporary( retType->clone() );
340 Expression *paramExpr = new VariableExpr( newObj );
341 if ( ! isPolyType( newObj->get_type(), env, scopeTyVars ) ) {
342 paramExpr = new AddressExpr( paramExpr );
343 } // if
344 arg = appExpr->get_args().insert( arg, paramExpr );
345 arg++;
346/// stmtsToAdd.push_back( new ExprStmt( noLabels, appExpr ) );
347 CommaExpr *commaExpr = new CommaExpr( appExpr, new VariableExpr( newObj ) );
348 commaExpr->set_env( appExpr->get_env() );
349 appExpr->set_env( 0 );
350 return commaExpr;
351 } // if
352 return appExpr;
353 }
354
355 Expression *Pass1::addPolyRetParam( ApplicationExpr *appExpr, FunctionType *function, std::string typeName, std::list< Expression *>::iterator &arg ) {
356 ResolvExpr::EqvClass eqvClass;
357 assert( env );
358 Type *concrete = env->lookup( typeName );
359 if ( concrete == 0 ) {
360 throw SemanticError( "Unbound type variable " + typeName + " in ", appExpr );
361 } // if
362 return addRetParam( appExpr, function, concrete, arg );
363 }
364
365 Expression *Pass1::applyAdapter( ApplicationExpr *appExpr, FunctionType *function, std::list< Expression *>::iterator &arg, const TyVarMap &tyVars ) {
366 Expression *ret = appExpr;
367 if ( ! function->get_returnVals().empty() && isPolyVal( function->get_returnVals().front()->get_type(), tyVars ) ) {
368 ret = addRetParam( appExpr, function, function->get_returnVals().front()->get_type(), arg );
369 } // if
370 std::string mangleName = mangleAdapterName( function, tyVars );
371 std::string adapterName = makeAdapterName( mangleName );
372
373 appExpr->get_args().push_front( appExpr->get_function() );
374 appExpr->set_function( new NameExpr( adapterName ) );
375
376 return ret;
377 }
378
379 void Pass1::boxParam( Type *param, Expression *&arg, const TyVarMap &exprTyVars ) {
380 assert( ! arg->get_results().empty() );
381/// if ( ! dynamic_cast< PointerType *>( arg->get_results().front() ) ) {
382 TypeInstType *typeInst = dynamic_cast< TypeInstType *>( param );
383 if ( typeInst && exprTyVars.find( typeInst->get_name() ) != exprTyVars.end() ) {
384 if ( dynamic_cast< TypeInstType *>( arg->get_results().front() ) ) {
385 // if the argument's type is a type parameter, we don't need to box again!
386 return;
387 } else if ( arg->get_results().front()->get_isLvalue() ) {
388 // VariableExpr and MemberExpr are lvalues
389 arg = new AddressExpr( arg );
390 } else {
391 ObjectDecl *newObj = new ObjectDecl( tempNamer.newName(), DeclarationNode::NoStorageClass, LinkageSpec::C, 0, arg->get_results().front()->clone(), 0 );
392 newObj->get_type()->get_qualifiers() = Type::Qualifiers(); // TODO: is this right???
393 stmtsToAdd.push_back( new DeclStmt( noLabels, newObj ) );
394 UntypedExpr *assign = new UntypedExpr( new NameExpr( "?=?" ) );
395 assign->get_args().push_back( new VariableExpr( newObj ) );
396 assign->get_args().push_back( arg );
397 stmtsToAdd.push_back( new ExprStmt( noLabels, assign ) );
398 arg = new AddressExpr( new VariableExpr( newObj ) );
399 } // if
400 } // if
401/// }
402 }
403
404 void addCast( Expression *&actual, Type *formal, const TyVarMap &tyVars ) {
405 Type *newType = formal->clone();
406 std::list< FunctionType *> functions;
407 // instead of functions needing adapters, this really ought to look for
408 // any function mentioning a polymorphic type
409 findAndReplaceFunction( newType, functions, tyVars, needsAdapter );
410 if ( ! functions.empty() ) {
411 actual = new CastExpr( actual, newType );
412 } else {
413 delete newType;
414 } // if
415 }
416
417 void Pass1::boxParams( ApplicationExpr *appExpr, FunctionType *function, std::list< Expression *>::iterator &arg, const TyVarMap &exprTyVars ) {
418/// std::cout << "function is ";
419/// function->print( std::cout );
420 for ( std::list< DeclarationWithType *>::const_iterator param = function->get_parameters().begin(); param != function->get_parameters().end(); ++param, ++arg ) {
421/// std::cout << "parameter is ";
422/// (*param)->print( std::fcout );
423/// std::cout << std::endl << "argument is ";
424/// (*arg)->print( std::cout );
425 assert( arg != appExpr->get_args().end() );
426 addCast( *arg, (*param)->get_type(), exprTyVars );
427 boxParam( (*param)->get_type(), *arg, exprTyVars );
428 } // for
429 }
430
431 void Pass1::addInferredParams( ApplicationExpr *appExpr, FunctionType *functionType, std::list< Expression *>::iterator &arg, const TyVarMap &tyVars ) {
432 std::list< Expression *>::iterator cur = arg;
433 for ( std::list< TypeDecl *>::iterator tyVar = functionType->get_forall().begin(); tyVar != functionType->get_forall().end(); ++tyVar ) {
434 for ( std::list< DeclarationWithType *>::iterator assert = (*tyVar)->get_assertions().begin(); assert != (*tyVar)->get_assertions().end(); ++assert ) {
435 InferredParams::const_iterator inferParam = appExpr->get_inferParams().find( (*assert)->get_uniqueId() );
436 assert( inferParam != appExpr->get_inferParams().end() && "NOTE: Explicit casts of polymorphic functions to compatible monomorphic functions are currently unsupported" );
437 Expression *newExpr = inferParam->second.expr->clone();
438 addCast( newExpr, (*assert)->get_type(), tyVars );
439 boxParam( (*assert)->get_type(), newExpr, tyVars );
440 appExpr->get_args().insert( cur, newExpr );
441 } // for
442 } // for
443 }
444
445 void makeRetParm( FunctionType *funcType ) {
446 DeclarationWithType *retParm = funcType->get_returnVals().front();
447
448 // make a new parameter that is a pointer to the type of the old return value
449 retParm->set_type( new PointerType( Type::Qualifiers(), retParm->get_type() ) );
450 funcType->get_parameters().push_front( retParm );
451
452 // we don't need the return value any more
453 funcType->get_returnVals().clear();
454 }
455
456 FunctionType *makeAdapterType( FunctionType *adaptee, const TyVarMap &tyVars ) {
457 // actually make the adapter type
458 FunctionType *adapter = adaptee->clone();
459 if ( ! adapter->get_returnVals().empty() && isPolyVal( adapter->get_returnVals().front()->get_type(), tyVars ) ) {
460 makeRetParm( adapter );
461 } // if
462 adapter->get_parameters().push_front( new ObjectDecl( "", DeclarationNode::NoStorageClass, LinkageSpec::C, 0, new PointerType( Type::Qualifiers(), new FunctionType( Type::Qualifiers(), true ) ), 0 ) );
463 return adapter;
464 }
465
466 Expression *makeAdapterArg( DeclarationWithType *param, DeclarationWithType *arg, DeclarationWithType *realParam, const TyVarMap &tyVars ) {
467 assert( param );
468 assert( arg );
469/// std::cout << "arg type is ";
470/// arg->get_type()->print( std::cout );
471/// std::cout << "param type is ";
472/// param->get_type()->print( std::cout );
473/// std::cout << " tyVars are: ";
474/// printTyVarMap( std::cout, tyVars );
475 if ( isPolyVal( realParam->get_type(), tyVars ) ) {
476/// if ( dynamic_cast< PointerType *>( arg->get_type() ) ) {
477/// return new CastExpr( new VariableExpr( param ), arg->get_type()->clone() );
478/// } else {
479 if ( dynamic_cast<TypeInstType *>(arg->get_type()) == NULL ) {
480 UntypedExpr *deref = new UntypedExpr( new NameExpr( "*?" ) );
481 deref->get_args().push_back( new CastExpr( new VariableExpr( param ), new PointerType( Type::Qualifiers(), arg->get_type()->clone() ) ) );
482 deref->get_results().push_back( arg->get_type()->clone() );
483 return deref;
484 } // if
485/// }
486 } // if
487 return new VariableExpr( param );
488 }
489
490 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 ) {
491 UniqueName paramNamer( "_p" );
492 for ( ; param != paramEnd; ++param, ++arg, ++realParam ) {
493 if ( (*param)->get_name() == "" ) {
494 (*param)->set_name( paramNamer.newName() );
495 (*param)->set_linkage( LinkageSpec::C );
496 } // if
497 adapteeApp->get_args().push_back( makeAdapterArg( *param, *arg, *realParam, tyVars ) );
498 } // for
499 }
500
501
502
503 FunctionDecl *Pass1::makeAdapter( FunctionType *adaptee, FunctionType *realType, const std::string &mangleName, const TyVarMap &tyVars ) {
504 FunctionType *adapterType = makeAdapterType( adaptee, tyVars );
505 adapterType = ScrubTyVars::scrub( adapterType, tyVars );
506 DeclarationWithType *adapteeDecl = adapterType->get_parameters().front();
507 adapteeDecl->set_name( "_adaptee" );
508 ApplicationExpr *adapteeApp = new ApplicationExpr( new CastExpr( new VariableExpr( adapteeDecl ), new PointerType( Type::Qualifiers(), realType ) ) );
509 Statement *bodyStmt;
510
511 std::list< TypeDecl *>::iterator tyArg = realType->get_forall().begin();
512 std::list< TypeDecl *>::iterator tyParam = adapterType->get_forall().begin();
513 std::list< TypeDecl *>::iterator realTyParam = adaptee->get_forall().begin();
514 for ( ; tyParam != adapterType->get_forall().end(); ++tyArg, ++tyParam, ++realTyParam ) {
515 assert( tyArg != realType->get_forall().end() );
516 std::list< DeclarationWithType *>::iterator assertArg = (*tyArg)->get_assertions().begin();
517 std::list< DeclarationWithType *>::iterator assertParam = (*tyParam)->get_assertions().begin();
518 std::list< DeclarationWithType *>::iterator realAssertParam = (*realTyParam)->get_assertions().begin();
519 for ( ; assertParam != (*tyParam)->get_assertions().end(); ++assertArg, ++assertParam, ++realAssertParam ) {
520 assert( assertArg != (*tyArg)->get_assertions().end() );
521 adapteeApp->get_args().push_back( makeAdapterArg( *assertParam, *assertArg, *realAssertParam, tyVars ) );
522 } // for
523 } // for
524
525 std::list< DeclarationWithType *>::iterator arg = realType->get_parameters().begin();
526 std::list< DeclarationWithType *>::iterator param = adapterType->get_parameters().begin();
527 std::list< DeclarationWithType *>::iterator realParam = adaptee->get_parameters().begin();
528 param++; // skip adaptee parameter
529 if ( realType->get_returnVals().empty() ) {
530 addAdapterParams( adapteeApp, arg, param, adapterType->get_parameters().end(), realParam, tyVars );
531 bodyStmt = new ExprStmt( noLabels, adapteeApp );
532 } else if ( isPolyVal( adaptee->get_returnVals().front()->get_type(), tyVars ) ) {
533 if ( (*param)->get_name() == "" ) {
534 (*param)->set_name( "_ret" );
535 (*param)->set_linkage( LinkageSpec::C );
536 } // if
537 UntypedExpr *assign = new UntypedExpr( new NameExpr( "?=?" ) );
538 UntypedExpr *deref = new UntypedExpr( new NameExpr( "*?" ) );
539 deref->get_args().push_back( new CastExpr( new VariableExpr( *param++ ), new PointerType( Type::Qualifiers(), realType->get_returnVals().front()->get_type()->clone() ) ) );
540 assign->get_args().push_back( deref );
541 addAdapterParams( adapteeApp, arg, param, adapterType->get_parameters().end(), realParam, tyVars );
542 assign->get_args().push_back( adapteeApp );
543 bodyStmt = new ExprStmt( noLabels, assign );
544 } else {
545 // adapter for a function that returns a monomorphic value
546 addAdapterParams( adapteeApp, arg, param, adapterType->get_parameters().end(), realParam, tyVars );
547 bodyStmt = new ReturnStmt( noLabels, adapteeApp );
548 } // if
549 CompoundStmt *adapterBody = new CompoundStmt( noLabels );
550 adapterBody->get_kids().push_back( bodyStmt );
551 std::string adapterName = makeAdapterName( mangleName );
552 return new FunctionDecl( adapterName, DeclarationNode::NoStorageClass, LinkageSpec::C, adapterType, adapterBody, false, false );
553 }
554
555 void Pass1::passAdapters( ApplicationExpr * appExpr, FunctionType * functionType, const TyVarMap & exprTyVars ) {
556 // collect a list of function types passed as parameters or implicit parameters (assertions)
557 std::list< DeclarationWithType *> &paramList = functionType->get_parameters();
558 std::list< FunctionType *> functions;
559 for ( std::list< TypeDecl *>::iterator tyVar = functionType->get_forall().begin(); tyVar != functionType->get_forall().end(); ++tyVar ) {
560 for ( std::list< DeclarationWithType *>::iterator assert = (*tyVar)->get_assertions().begin(); assert != (*tyVar)->get_assertions().end(); ++assert ) {
561 findFunction( (*assert)->get_type(), functions, exprTyVars, needsAdapter );
562 } // for
563 } // for
564 for ( std::list< DeclarationWithType *>::iterator arg = paramList.begin(); arg != paramList.end(); ++arg ) {
565 findFunction( (*arg)->get_type(), functions, exprTyVars, needsAdapter );
566 } // for
567
568 // parameter function types for which an appropriate adapter has been generated. we cannot use the types
569 // after applying substitutions, since two different parameter types may be unified to the same type
570 std::set< std::string > adaptersDone;
571
572 for ( std::list< FunctionType *>::iterator funType = functions.begin(); funType != functions.end(); ++funType ) {
573 FunctionType *originalFunction = (*funType)->clone();
574 FunctionType *realFunction = (*funType)->clone();
575 std::string mangleName = SymTab::Mangler::mangle( realFunction );
576
577 // only attempt to create an adapter or pass one as a parameter if we haven't already done so for this
578 // pre-substitution parameter function type.
579 if ( adaptersDone.find( mangleName ) == adaptersDone.end() ) {
580 adaptersDone.insert( adaptersDone.begin(), mangleName );
581
582 // apply substitution to type variables to figure out what the adapter's type should look like
583 assert( env );
584 env->apply( realFunction );
585 mangleName = SymTab::Mangler::mangle( realFunction );
586 mangleName += makePolyMonoSuffix( originalFunction, exprTyVars );
587
588 AdapterMap & adapters = Pass1::adapters.top();
589 AdapterMap::iterator adapter = adapters.find( mangleName );
590 if ( adapter == adapters.end() ) {
591 // adapter has not been created yet in the current scope, so define it
592 FunctionDecl *newAdapter = makeAdapter( *funType, realFunction, mangleName, exprTyVars );
593 adapter = adapters.insert( adapters.begin(), std::pair< std::string, DeclarationWithType *>( mangleName, newAdapter ) );
594 stmtsToAdd.push_back( new DeclStmt( noLabels, newAdapter ) );
595 } // if
596 assert( adapter != adapters.end() );
597
598 // add the appropriate adapter as a parameter
599 appExpr->get_args().push_front( new VariableExpr( adapter->second ) );
600 } // if
601 } // for
602 } // passAdapters
603
604 TypeInstType *isPolyPtr( Type *type, const TypeSubstitution *env, const TyVarMap &tyVars ) {
605 if ( PointerType *ptr = dynamic_cast< PointerType *>( type ) ) {
606 return isPolyType( ptr->get_base(), env, tyVars );
607 } else if ( env ) {
608 if ( TypeInstType *typeInst = dynamic_cast< TypeInstType *>( type ) ) {
609 if ( Type *newType = env->lookup( typeInst->get_name() ) ) {
610 return isPolyPtr( newType, env, tyVars );
611 } // if
612 } // if
613 } // if
614 return 0;
615 }
616
617 TypeInstType *isPolyPtrPtr( Type *type, const TypeSubstitution *env, const TyVarMap &tyVars ) {
618 if ( PointerType *ptr = dynamic_cast< PointerType *>( type ) ) {
619 return isPolyPtr( ptr->get_base(), env, tyVars );
620 } else if ( env ) {
621 if ( TypeInstType *typeInst = dynamic_cast< TypeInstType *>( type ) ) {
622 if ( Type *newType = env->lookup( typeInst->get_name() ) ) {
623 return isPolyPtrPtr( newType, env, tyVars );
624 } // if
625 } // if
626 } // if
627 return 0;
628 }
629
630 Expression *makeIncrDecrExpr( ApplicationExpr *appExpr, std::string polyName, bool isIncr ) {
631 NameExpr *opExpr;
632 if ( isIncr ) {
633 opExpr = new NameExpr( "?+=?" );
634 } else {
635 opExpr = new NameExpr( "?-=?" );
636 } // if
637 UntypedExpr *addAssign = new UntypedExpr( opExpr );
638 if ( AddressExpr *address = dynamic_cast< AddressExpr *>( appExpr->get_args().front() ) ) {
639 addAssign->get_args().push_back( address->get_arg() );
640 } else {
641 addAssign->get_args().push_back( appExpr->get_args().front() );
642 } // if
643 addAssign->get_args().push_back( new NameExpr( polyName ) );
644 addAssign->get_results().front() = appExpr->get_results().front()->clone();
645 if ( appExpr->get_env() ) {
646 addAssign->set_env( appExpr->get_env() );
647 appExpr->set_env( 0 );
648 } // if
649 appExpr->get_args().clear();
650 delete appExpr;
651 return addAssign;
652 }
653
654 Expression *Pass1::handleIntrinsics( ApplicationExpr *appExpr ) {
655 if ( VariableExpr *varExpr = dynamic_cast< VariableExpr *>( appExpr->get_function() ) ) {
656 if ( varExpr->get_var()->get_linkage() == LinkageSpec::Intrinsic ) {
657 if ( varExpr->get_var()->get_name() == "?[?]" ) {
658 assert( ! appExpr->get_results().empty() );
659 assert( appExpr->get_args().size() == 2 );
660 TypeInstType *typeInst1 = isPolyPtr( appExpr->get_args().front()->get_results().front(), env, scopeTyVars );
661 TypeInstType *typeInst2 = isPolyPtr( appExpr->get_args().back()->get_results().front(), env, scopeTyVars );
662 assert( ! typeInst1 || ! typeInst2 );
663 UntypedExpr *ret = 0;
664 if ( typeInst1 || typeInst2 ) {
665 ret = new UntypedExpr( new NameExpr( "?+?" ) );
666 } // if
667 if ( typeInst1 ) {
668 UntypedExpr *multiply = new UntypedExpr( new NameExpr( "?*?" ) );
669 multiply->get_args().push_back( appExpr->get_args().back() );
670 multiply->get_args().push_back( new NameExpr( typeInst1->get_name() ) );
671 ret->get_args().push_back( appExpr->get_args().front() );
672 ret->get_args().push_back( multiply );
673 } else if ( typeInst2 ) {
674 UntypedExpr *multiply = new UntypedExpr( new NameExpr( "?*?" ) );
675 multiply->get_args().push_back( appExpr->get_args().front() );
676 multiply->get_args().push_back( new NameExpr( typeInst2->get_name() ) );
677 ret->get_args().push_back( multiply );
678 ret->get_args().push_back( appExpr->get_args().back() );
679 } // if
680 if ( typeInst1 || typeInst2 ) {
681 ret->get_results().push_front( appExpr->get_results().front()->clone() );
682 if ( appExpr->get_env() ) {
683 ret->set_env( appExpr->get_env() );
684 appExpr->set_env( 0 );
685 } // if
686 appExpr->get_args().clear();
687 delete appExpr;
688 return ret;
689 } // if
690 } else if ( varExpr->get_var()->get_name() == "*?" ) {
691 assert( ! appExpr->get_results().empty() );
692 assert( ! appExpr->get_args().empty() );
693 if ( isPolyType( appExpr->get_results().front(), env, scopeTyVars ) ) {
694 Expression *ret = appExpr->get_args().front();
695 delete ret->get_results().front();
696 ret->get_results().front() = appExpr->get_results().front()->clone();
697 if ( appExpr->get_env() ) {
698 ret->set_env( appExpr->get_env() );
699 appExpr->set_env( 0 );
700 } // if
701 appExpr->get_args().clear();
702 delete appExpr;
703 return ret;
704 } // if
705 } else if ( varExpr->get_var()->get_name() == "?++" || varExpr->get_var()->get_name() == "?--" ) {
706 assert( ! appExpr->get_results().empty() );
707 assert( appExpr->get_args().size() == 1 );
708 if ( TypeInstType *typeInst = isPolyPtr( appExpr->get_results().front(), env, scopeTyVars ) ) {
709 Type *tempType = appExpr->get_results().front()->clone();
710 if ( env ) {
711 env->apply( tempType );
712 } // if
713 ObjectDecl *newObj = makeTemporary( tempType );
714 VariableExpr *tempExpr = new VariableExpr( newObj );
715 UntypedExpr *assignExpr = new UntypedExpr( new NameExpr( "?=?" ) );
716 assignExpr->get_args().push_back( tempExpr->clone() );
717 if ( AddressExpr *address = dynamic_cast< AddressExpr *>( appExpr->get_args().front() ) ) {
718 assignExpr->get_args().push_back( address->get_arg()->clone() );
719 } else {
720 assignExpr->get_args().push_back( appExpr->get_args().front()->clone() );
721 } // if
722 CommaExpr *firstComma = new CommaExpr( assignExpr, makeIncrDecrExpr( appExpr, typeInst->get_name(), varExpr->get_var()->get_name() == "?++" ) );
723 return new CommaExpr( firstComma, tempExpr );
724 } // if
725 } else if ( varExpr->get_var()->get_name() == "++?" || varExpr->get_var()->get_name() == "--?" ) {
726 assert( ! appExpr->get_results().empty() );
727 assert( appExpr->get_args().size() == 1 );
728 if ( TypeInstType *typeInst = isPolyPtr( appExpr->get_results().front(), env, scopeTyVars ) ) {
729 return makeIncrDecrExpr( appExpr, typeInst->get_name(), varExpr->get_var()->get_name() == "++?" );
730 } // if
731 } else if ( varExpr->get_var()->get_name() == "?+?" || varExpr->get_var()->get_name() == "?-?" ) {
732 assert( ! appExpr->get_results().empty() );
733 assert( appExpr->get_args().size() == 2 );
734 TypeInstType *typeInst1 = isPolyPtr( appExpr->get_args().front()->get_results().front(), env, scopeTyVars );
735 TypeInstType *typeInst2 = isPolyPtr( appExpr->get_args().back()->get_results().front(), env, scopeTyVars );
736 if ( typeInst1 && typeInst2 ) {
737 UntypedExpr *divide = new UntypedExpr( new NameExpr( "?/?" ) );
738 divide->get_args().push_back( appExpr );
739 divide->get_args().push_back( new NameExpr( typeInst1->get_name() ) );
740 divide->get_results().push_front( appExpr->get_results().front()->clone() );
741 if ( appExpr->get_env() ) {
742 divide->set_env( appExpr->get_env() );
743 appExpr->set_env( 0 );
744 } // if
745 return divide;
746 } else if ( typeInst1 ) {
747 UntypedExpr *multiply = new UntypedExpr( new NameExpr( "?*?" ) );
748 multiply->get_args().push_back( appExpr->get_args().back() );
749 multiply->get_args().push_back( new NameExpr( typeInst1->get_name() ) );
750 appExpr->get_args().back() = multiply;
751 } else if ( typeInst2 ) {
752 UntypedExpr *multiply = new UntypedExpr( new NameExpr( "?*?" ) );
753 multiply->get_args().push_back( appExpr->get_args().front() );
754 multiply->get_args().push_back( new NameExpr( typeInst2->get_name() ) );
755 appExpr->get_args().front() = multiply;
756 } // if
757 } else if ( varExpr->get_var()->get_name() == "?+=?" || varExpr->get_var()->get_name() == "?-=?" ) {
758 assert( ! appExpr->get_results().empty() );
759 assert( appExpr->get_args().size() == 2 );
760 TypeInstType *typeInst = isPolyPtr( appExpr->get_results().front(), env, scopeTyVars );
761 if ( typeInst ) {
762 UntypedExpr *multiply = new UntypedExpr( new NameExpr( "?*?" ) );
763 multiply->get_args().push_back( appExpr->get_args().back() );
764 multiply->get_args().push_back( new NameExpr( typeInst->get_name() ) );
765 appExpr->get_args().back() = multiply;
766 } // if
767 } // if
768 return appExpr;
769 } // if
770 } // if
771 return 0;
772 }
773
774 Expression *Pass1::mutate( ApplicationExpr *appExpr ) {
775 // std::cerr << "mutate appExpr: ";
776 // for ( TyVarMap::iterator i = scopeTyVars.begin(); i != scopeTyVars.end(); ++i ) {
777 // std::cerr << i->first << " ";
778 // }
779 // std::cerr << "\n";
780 bool oldUseRetval = useRetval;
781 useRetval = false;
782 appExpr->get_function()->acceptMutator( *this );
783 mutateAll( appExpr->get_args(), *this );
784 useRetval = oldUseRetval;
785
786 assert( ! appExpr->get_function()->get_results().empty() );
787 PointerType *pointer = dynamic_cast< PointerType *>( appExpr->get_function()->get_results().front() );
788 assert( pointer );
789 FunctionType *function = dynamic_cast< FunctionType *>( pointer->get_base() );
790 assert( function );
791
792 if ( Expression *newExpr = handleIntrinsics( appExpr ) ) {
793 return newExpr;
794 } // if
795
796 Expression *ret = appExpr;
797
798 std::list< Expression *>::iterator arg = appExpr->get_args().begin();
799 std::list< Expression *>::iterator paramBegin = appExpr->get_args().begin();
800
801 std::string typeName;
802 if ( isPolyRet( function, typeName ) ) {
803 ret = addPolyRetParam( appExpr, function, typeName, arg );
804 } else if ( needsAdapter( function, scopeTyVars ) ) {
805 // std::cerr << "needs adapter: ";
806 // for ( TyVarMap::iterator i = scopeTyVars.begin(); i != scopeTyVars.end(); ++i ) {
807 // std::cerr << i->first << " ";
808 // }
809 // std::cerr << "\n";
810 // change the application so it calls the adapter rather than the passed function
811 ret = applyAdapter( appExpr, function, arg, scopeTyVars );
812 } // if
813 arg = appExpr->get_args().begin();
814
815 TyVarMap exprTyVars;
816 makeTyVarMap( function, exprTyVars );
817
818 passTypeVars( appExpr, arg, exprTyVars );
819 addInferredParams( appExpr, function, arg, exprTyVars );
820
821 arg = paramBegin;
822
823 boxParams( appExpr, function, arg, exprTyVars );
824
825 passAdapters( appExpr, function, exprTyVars );
826
827 return ret;
828 }
829
830 Expression *Pass1::mutate( UntypedExpr *expr ) {
831 if ( ! expr->get_results().empty() && isPolyType( expr->get_results().front(), env, scopeTyVars ) ) {
832 if ( NameExpr *name = dynamic_cast< NameExpr *>( expr->get_function() ) ) {
833 if ( name->get_name() == "*?" ) {
834 Expression *ret = expr->get_args().front();
835 expr->get_args().clear();
836 delete expr;
837 return ret->acceptMutator( *this );
838 } // if
839 } // if
840 } // if
841 return PolyMutator::mutate( expr );
842 }
843
844 Expression *Pass1::mutate( AddressExpr *addrExpr ) {
845 assert( ! addrExpr->get_arg()->get_results().empty() );
846 addrExpr->set_arg( mutateExpression( addrExpr->get_arg() ) );
847 if ( isPolyType( addrExpr->get_arg()->get_results().front(), env, scopeTyVars ) ) {
848 Expression *ret = addrExpr->get_arg();
849 delete ret->get_results().front();
850 ret->get_results().front() = addrExpr->get_results().front()->clone();
851 addrExpr->set_arg( 0 );
852 delete addrExpr;
853 return ret;
854 } else {
855 return addrExpr;
856 } // if
857 }
858
859 Statement * Pass1::mutate(ReturnStmt *retStmt) {
860 // a cast expr on a polymorphic return value is either redundant or invalid
861 while ( CastExpr *castExpr = dynamic_cast< CastExpr *>( retStmt->get_expr() ) ) {
862 retStmt->set_expr( castExpr->get_arg() );
863 retStmt->get_expr()->set_env( castExpr->get_env() );
864 castExpr->set_env( 0 );
865 castExpr->set_arg( 0 );
866 delete castExpr;
867 }
868 if ( retval && retStmt->get_expr() ) {
869 assert( ! retStmt->get_expr()->get_results().empty() );
870 if ( retStmt->get_expr()->get_results().front()->get_isLvalue() ) {
871/// retStmt->set_expr( mutateExpression( retStmt->get_expr() ) );
872 TypeInstType *typeInst = dynamic_cast< TypeInstType *>( retval->get_type() );
873 assert( typeInst );
874 std::map< std::string, DeclarationWithType *>::const_iterator assignIter = assignOps.find( typeInst->get_name() );
875 if ( assignIter == assignOps.end() ) {
876 throw SemanticError( "Attempt to return dtype or ftype object in ", retStmt->get_expr() );
877 } // if
878 ApplicationExpr *assignExpr = new ApplicationExpr( new VariableExpr( assignIter->second ) );
879 Expression *retParm = new NameExpr( retval->get_name() );
880 retParm->get_results().push_back( new PointerType( Type::Qualifiers(), retval->get_type()->clone() ) );
881 assignExpr->get_args().push_back( retParm );
882 assignExpr->get_args().push_back( retStmt->get_expr() );
883 stmtsToAdd.push_back( new ExprStmt( noLabels, mutateExpression( assignExpr ) ) );
884 } else {
885 useRetval = true;
886 stmtsToAdd.push_back( new ExprStmt( noLabels, mutateExpression( retStmt->get_expr() ) ) );
887 useRetval = false;
888 } // if
889 retStmt->set_expr( 0 );
890 } else {
891 retStmt->set_expr( mutateExpression( retStmt->get_expr() ) );
892 } // if
893 return retStmt;
894 }
895
896 Type * Pass1::mutate( PointerType *pointerType ) {
897 TyVarMap oldtyVars = scopeTyVars;
898 makeTyVarMap( pointerType, scopeTyVars );
899
900 Type *ret = Mutator::mutate( pointerType );
901
902 scopeTyVars = oldtyVars;
903 return ret;
904 }
905
906 Type * Pass1::mutate( FunctionType *functionType ) {
907 TyVarMap oldtyVars = scopeTyVars;
908 makeTyVarMap( functionType, scopeTyVars );
909
910 Type *ret = Mutator::mutate( functionType );
911
912 scopeTyVars = oldtyVars;
913 return ret;
914 }
915
916 void Pass1::doBeginScope() {
917 // push a copy of the current map
918 adapters.push(adapters.top());
919 }
920
921 void Pass1::doEndScope() {
922 adapters.pop();
923 }
924
925////////////////////////////////////////// Pass2 ////////////////////////////////////////////////////
926
927 Pass2::Pass2() {}
928
929 void Pass2::addAdapters( FunctionType *functionType ) {
930 std::list< DeclarationWithType *> &paramList = functionType->get_parameters();
931 std::list< FunctionType *> functions;
932 for ( std::list< DeclarationWithType *>::iterator arg = paramList.begin(); arg != paramList.end(); ++arg ) {
933 Type *orig = (*arg)->get_type();
934 findAndReplaceFunction( orig, functions, scopeTyVars, needsAdapter );
935 (*arg)->set_type( orig );
936 }
937 std::set< std::string > adaptersDone;
938 for ( std::list< FunctionType *>::iterator funType = functions.begin(); funType != functions.end(); ++funType ) {
939 std::string mangleName = mangleAdapterName( *funType, scopeTyVars );
940 if ( adaptersDone.find( mangleName ) == adaptersDone.end() ) {
941 std::string adapterName = makeAdapterName( mangleName );
942 paramList.push_front( new ObjectDecl( adapterName, DeclarationNode::NoStorageClass, LinkageSpec::C, 0, new PointerType( Type::Qualifiers(), makeAdapterType( *funType, scopeTyVars ) ), 0 ) );
943 adaptersDone.insert( adaptersDone.begin(), mangleName );
944 }
945 }
946/// deleteAll( functions );
947 }
948
949 template< typename DeclClass >
950 DeclClass * Pass2::handleDecl( DeclClass *decl, Type *type ) {
951 DeclClass *ret = static_cast< DeclClass *>( Mutator::mutate( decl ) );
952
953 return ret;
954 }
955
956 DeclarationWithType * Pass2::mutate( FunctionDecl *functionDecl ) {
957 return handleDecl( functionDecl, functionDecl->get_functionType() );
958 }
959
960 ObjectDecl * Pass2::mutate( ObjectDecl *objectDecl ) {
961 return handleDecl( objectDecl, objectDecl->get_type() );
962 }
963
964 TypeDecl * Pass2::mutate( TypeDecl *typeDecl ) {
965 scopeTyVars[ typeDecl->get_name() ] = typeDecl->get_kind();
966 if ( typeDecl->get_base() ) {
967 return handleDecl( typeDecl, typeDecl->get_base() );
968 } else {
969 return Mutator::mutate( typeDecl );
970 }
971 }
972
973 TypedefDecl * Pass2::mutate( TypedefDecl *typedefDecl ) {
974 return handleDecl( typedefDecl, typedefDecl->get_base() );
975 }
976
977 Type * Pass2::mutate( PointerType *pointerType ) {
978 TyVarMap oldtyVars = scopeTyVars;
979 makeTyVarMap( pointerType, scopeTyVars );
980
981 Type *ret = Mutator::mutate( pointerType );
982
983 scopeTyVars = oldtyVars;
984 return ret;
985 }
986
987 Type *Pass2::mutate( FunctionType *funcType ) {
988 TyVarMap oldtyVars = scopeTyVars;
989 makeTyVarMap( funcType, scopeTyVars );
990
991 std::string typeName;
992 if ( isPolyRet( funcType, typeName ) ) {
993 DeclarationWithType *ret = funcType->get_returnVals().front();
994 ret->set_type( new PointerType( Type::Qualifiers(), ret->get_type() ) );
995 funcType->get_parameters().push_front( ret );
996 funcType->get_returnVals().pop_front();
997 }
998
999 std::list< DeclarationWithType *>::iterator last = funcType->get_parameters().begin();
1000 std::list< DeclarationWithType *> inferredParams;
1001 ObjectDecl *newObj = new ObjectDecl( "", DeclarationNode::NoStorageClass, LinkageSpec::C, 0, new BasicType( Type::Qualifiers(), BasicType::LongUnsignedInt ), 0 );
1002/// ObjectDecl *newFunPtr = new ObjectDecl( "", DeclarationNode::NoStorageClass, LinkageSpec::Cforall, 0, new PointerType( Type::Qualifiers(), new FunctionType( Type::Qualifiers(), true ) ), 0 );
1003 for ( std::list< TypeDecl *>::const_iterator tyParm = funcType->get_forall().begin(); tyParm != funcType->get_forall().end(); ++tyParm ) {
1004 ObjectDecl *thisParm;
1005 // add all size parameters to parameter list
1006 if ( (*tyParm)->get_kind() == TypeDecl::Any ) {
1007 thisParm = newObj->clone();
1008 thisParm->set_name( (*tyParm)->get_name() );
1009 last = funcType->get_parameters().insert( last, thisParm );
1010 ++last;
1011 }
1012 // move all assertions into parameter list
1013 for ( std::list< DeclarationWithType *>::iterator assert = (*tyParm)->get_assertions().begin(); assert != (*tyParm)->get_assertions().end(); ++assert ) {
1014/// *assert = (*assert)->acceptMutator( *this );
1015 inferredParams.push_back( *assert );
1016 }
1017 (*tyParm)->get_assertions().clear();
1018 }
1019 delete newObj;
1020 funcType->get_parameters().splice( last, inferredParams );
1021 addAdapters( funcType );
1022 mutateAll( funcType->get_returnVals(), *this );
1023 mutateAll( funcType->get_parameters(), *this );
1024
1025 scopeTyVars = oldtyVars;
1026 return funcType;
1027 }
1028
1029////////////////////////////////////////// Pass3 ////////////////////////////////////////////////////
1030
1031 template< typename DeclClass >
1032 DeclClass * Pass3::handleDecl( DeclClass *decl, Type *type ) {
1033 TyVarMap oldtyVars = scopeTyVars;
1034 makeTyVarMap( type, scopeTyVars );
1035
1036 DeclClass *ret = static_cast< DeclClass *>( Mutator::mutate( decl ) );
1037 ScrubTyVars::scrub( decl, scopeTyVars );
1038
1039 scopeTyVars = oldtyVars;
1040 return ret;
1041 }
1042
1043 ObjectDecl * Pass3::mutate( ObjectDecl *objectDecl ) {
1044 return handleDecl( objectDecl, objectDecl->get_type() );
1045 }
1046
1047 DeclarationWithType * Pass3::mutate( FunctionDecl *functionDecl ) {
1048 return handleDecl( functionDecl, functionDecl->get_functionType() );
1049 }
1050
1051 TypedefDecl * Pass3::mutate( TypedefDecl *typedefDecl ) {
1052 return handleDecl( typedefDecl, typedefDecl->get_base() );
1053 }
1054
1055 TypeDecl * Pass3::mutate( TypeDecl *typeDecl ) {
1056/// Initializer *init = 0;
1057/// std::list< Expression *> designators;
1058/// scopeTyVars[ typeDecl->get_name() ] = typeDecl->get_kind();
1059/// if ( typeDecl->get_base() ) {
1060/// init = new SimpleInit( new SizeofExpr( handleDecl( typeDecl, typeDecl->get_base() ) ), designators );
1061/// }
1062/// return new ObjectDecl( typeDecl->get_name(), Declaration::Extern, LinkageSpec::C, 0, new BasicType( Type::Qualifiers(), BasicType::UnsignedInt ), init );
1063
1064 scopeTyVars[ typeDecl->get_name() ] = typeDecl->get_kind();
1065 return Mutator::mutate( typeDecl );
1066 }
1067
1068 Type * Pass3::mutate( PointerType *pointerType ) {
1069 TyVarMap oldtyVars = scopeTyVars;
1070 makeTyVarMap( pointerType, scopeTyVars );
1071
1072 Type *ret = Mutator::mutate( pointerType );
1073
1074 scopeTyVars = oldtyVars;
1075 return ret;
1076 }
1077
1078 Type * Pass3::mutate( FunctionType *functionType ) {
1079 TyVarMap oldtyVars = scopeTyVars;
1080 makeTyVarMap( functionType, scopeTyVars );
1081
1082 Type *ret = Mutator::mutate( functionType );
1083
1084 scopeTyVars = oldtyVars;
1085 return ret;
1086 }
1087
1088 Statement *Pass3::mutate( DeclStmt *declStmt ) {
1089 if ( ObjectDecl *objectDecl = dynamic_cast< ObjectDecl *>( declStmt->get_decl() ) ) {
1090 if ( isPolyVal( objectDecl->get_type(), scopeTyVars ) ) {
1091 // change initialization of a polymorphic value object
1092 // to allocate storage with alloca
1093 TypeInstType *typeInst = dynamic_cast< TypeInstType *>( objectDecl->get_type() );
1094 assert( typeInst );
1095 UntypedExpr *alloc = new UntypedExpr( new NameExpr( "__builtin_alloca" ) );
1096 alloc->get_args().push_back( new NameExpr( typeInst->get_name() ) );
1097
1098 delete objectDecl->get_init();
1099
1100 std::list<Expression*> designators;
1101 objectDecl->set_init( new SingleInit( alloc, designators ) );
1102 }
1103 }
1104 return Mutator::mutate( declStmt );
1105 }
1106 } // anonymous namespace
1107} // namespace GenPoly
1108
1109// Local Variables: //
1110// tab-width: 4 //
1111// mode: c++ //
1112// compile-command: "make install" //
1113// End: //
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