source: src/SymTab/Autogen.cc@ 845cedc

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 with_gc
Last change on this file since 845cedc was 356189a, checked in by Rob Schluntz <rschlunt@…>, 9 years ago

output intrinsic constructor expressions as void expression or C assignment, don't generate field constructor which takes unnamed bitfield as a parameter
  • Property mode set to 100644
File size: 25.5 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// Autogen.cc --
8//
9// Author : Rob Schluntz
10// Created On : Thu Mar 03 15:45:56 2016
11// Last Modified By : Rob Schluntz
12// Last Modified On : Thu Apr 14 16:58:35 2016
13// Update Count : 1
14//
15
16#include <list>
17#include <iterator>
18#include "SynTree/Visitor.h"
19#include "SynTree/Type.h"
20#include "SynTree/Statement.h"
21#include "SynTree/TypeSubstitution.h"
22#include "Common/utility.h"
23#include "AddVisit.h"
24#include "MakeLibCfa.h"
25#include "Autogen.h"
26
27namespace SymTab {
28 class AutogenerateRoutines : public Visitor {
29 public:
30 std::list< Declaration * > &get_declsToAdd() { return declsToAdd; }
31
32 virtual void visit( EnumDecl *enumDecl );
33 virtual void visit( StructDecl *structDecl );
34 virtual void visit( UnionDecl *structDecl );
35 virtual void visit( TypeDecl *typeDecl );
36 virtual void visit( TraitDecl *ctxDecl );
37 virtual void visit( FunctionDecl *functionDecl );
38
39 virtual void visit( FunctionType *ftype );
40 virtual void visit( PointerType *ftype );
41
42 virtual void visit( CompoundStmt *compoundStmt );
43 virtual void visit( SwitchStmt *switchStmt );
44 virtual void visit( ChooseStmt *chooseStmt );
45 // virtual void visit( CaseStmt *caseStmt );
46
47 AutogenerateRoutines() : functionNesting( 0 ) {}
48 private:
49 template< typename StmtClass > void visitStatement( StmtClass *stmt );
50
51 std::list< Declaration * > declsToAdd;
52 std::set< std::string > structsDone;
53 unsigned int functionNesting; // current level of nested functions
54 };
55
56 void autogenerateRoutines( std::list< Declaration * > &translationUnit ) {
57 AutogenerateRoutines visitor;
58 acceptAndAdd( translationUnit, visitor, false );
59 }
60
61 bool isUnnamedBitfield( ObjectDecl * obj ) {
62 return obj != NULL && obj->get_name() == "" && obj->get_bitfieldWidth() != NULL;
63 }
64
65 template< typename OutputIterator >
66 void makeScalarFunction( Expression *src, ObjectDecl *dstParam, DeclarationWithType *member, std::string fname, OutputIterator out ) {
67 ObjectDecl *obj = dynamic_cast<ObjectDecl *>( member );
68 // unnamed bit fields are not copied as they cannot be accessed
69 if ( isUnnamedBitfield( obj ) ) return;
70
71 // want to be able to generate assignment, ctor, and dtor generically,
72 // so fname is either ?=?, ?{}, or ^?{}
73 UntypedExpr *fExpr = new UntypedExpr( new NameExpr( fname ) );
74
75 UntypedExpr *derefExpr = new UntypedExpr( new NameExpr( "*?" ) );
76 derefExpr->get_args().push_back( new VariableExpr( dstParam ) );
77
78 // do something special for unnamed members
79 Expression *dstselect = new AddressExpr( new MemberExpr( member, derefExpr ) );
80 fExpr->get_args().push_back( dstselect );
81
82 if ( src ) {
83 fExpr->get_args().push_back( src );
84 }
85
86 *out++ = new ExprStmt( noLabels, fExpr );
87 }
88
89 template< typename OutputIterator >
90 void makeUnionFieldsAssignment( ObjectDecl *srcParam, ObjectDecl *dstParam, UnionInstType *unionType, OutputIterator out ) {
91 UntypedExpr *copy = new UntypedExpr( new NameExpr( "__builtin_memcpy" ) );
92 copy->get_args().push_back( new VariableExpr( dstParam ) );
93 copy->get_args().push_back( new AddressExpr( new VariableExpr( srcParam ) ) );
94 copy->get_args().push_back( new SizeofExpr( unionType ) );
95
96 *out++ = new ExprStmt( noLabels, copy );
97 }
98
99 //E ?=?(E volatile*, int),
100 // ?=?(E _Atomic volatile*, int);
101 void makeEnumFunctions( EnumDecl *enumDecl, EnumInstType *refType, unsigned int functionNesting, std::list< Declaration * > &declsToAdd ) {
102 FunctionType *assignType = new FunctionType( Type::Qualifiers(), false );
103
104 ObjectDecl *returnVal = new ObjectDecl( "", DeclarationNode::NoStorageClass, LinkageSpec::Cforall, 0, refType->clone(), 0 );
105 assignType->get_returnVals().push_back( returnVal );
106
107 // need two assignment operators with different types
108 FunctionType * assignType2 = assignType->clone();
109
110 // E ?=?(E volatile *, E)
111 Type *etype = refType->clone();
112 // etype->get_qualifiers() += Type::Qualifiers(false, true, false, false, false, false);
113
114 ObjectDecl *dstParam = new ObjectDecl( "_dst", DeclarationNode::NoStorageClass, LinkageSpec::Cforall, 0, new PointerType( Type::Qualifiers(), etype ), 0 );
115 assignType->get_parameters().push_back( dstParam );
116
117 ObjectDecl *srcParam = new ObjectDecl( "_src", DeclarationNode::NoStorageClass, LinkageSpec::Cforall, 0, etype->clone(), 0 );
118 assignType->get_parameters().push_back( srcParam );
119
120 // E ?=?(E volatile *, int)
121 assignType2->get_parameters().push_back( dstParam->clone() );
122 BasicType * paramType = new BasicType(Type::Qualifiers(), BasicType::SignedInt);
123 ObjectDecl *srcParam2 = new ObjectDecl( "_src", DeclarationNode::NoStorageClass, LinkageSpec::Cforall, 0, paramType, 0 );
124 assignType2->get_parameters().push_back( srcParam2 );
125
126 // Routines at global scope marked "static" to prevent multiple definitions is separate translation units
127 // because each unit generates copies of the default routines for each aggregate.
128
129 // since there is no definition, these should not be inline
130 // make these intrinsic so that the code generator does not make use of them
131 FunctionDecl *assignDecl = new FunctionDecl( "?=?", functionNesting > 0 ? DeclarationNode::NoStorageClass : DeclarationNode::Static, LinkageSpec::Intrinsic, assignType, 0, false, false );
132 assignDecl->fixUniqueId();
133 FunctionDecl *assignDecl2 = new FunctionDecl( "?=?", functionNesting > 0 ? DeclarationNode::NoStorageClass : DeclarationNode::Static, LinkageSpec::Intrinsic, assignType2, 0, false, false );
134 assignDecl2->fixUniqueId();
135
136 // these should be built in the same way that the prelude
137 // functions are, so build a list containing the prototypes
138 // and allow MakeLibCfa to autogenerate the bodies.
139 std::list< Declaration * > assigns;
140 assigns.push_back( assignDecl );
141 assigns.push_back( assignDecl2 );
142
143 LibCfa::makeLibCfa( assigns );
144
145 // need to remove the prototypes, since this may be nested in a routine
146 for (int start = 0, end = assigns.size()/2; start < end; start++) {
147 delete assigns.front();
148 assigns.pop_front();
149 } // for
150
151 declsToAdd.insert( declsToAdd.begin(), assigns.begin(), assigns.end() );
152 }
153
154 /// Clones a reference type, replacing any parameters it may have with a clone of the provided list
155 template< typename GenericInstType >
156 GenericInstType *cloneWithParams( GenericInstType *refType, const std::list< Expression* >& params ) {
157 GenericInstType *clone = refType->clone();
158 clone->get_parameters().clear();
159 cloneAll( params, clone->get_parameters() );
160 return clone;
161 }
162
163 /// Creates a new type decl that's the same as src, but renamed and with only the ?=? assertion (for complete types only)
164 TypeDecl *cloneAndRename( TypeDecl *src, const std::string &name ) {
165 TypeDecl *dst = new TypeDecl( name, src->get_storageClass(), 0, src->get_kind() );
166
167 if ( src->get_kind() == TypeDecl::Any ) {
168 // just include assignment operator assertion
169 TypeInstType *assignParamType = new TypeInstType( Type::Qualifiers(), name, dst );
170 FunctionType *assignFunctionType = new FunctionType( Type::Qualifiers(), false );
171 assignFunctionType->get_returnVals().push_back(
172 new ObjectDecl( "", DeclarationNode::NoStorageClass, LinkageSpec::Cforall, 0, assignParamType->clone(), 0 ) );
173 assignFunctionType->get_parameters().push_back(
174 new ObjectDecl( "", DeclarationNode::NoStorageClass, LinkageSpec::Cforall, 0, new PointerType( Type::Qualifiers(), assignParamType->clone() ), 0 ) );
175 assignFunctionType->get_parameters().push_back(
176 new ObjectDecl( "", DeclarationNode::NoStorageClass, LinkageSpec::Cforall, 0, assignParamType, 0 ) );
177 FunctionDecl *assignAssert = new FunctionDecl( "?=?", DeclarationNode::NoStorageClass, LinkageSpec::Cforall, assignFunctionType, 0, false, false );
178 dst->get_assertions().push_back( assignAssert );
179 }
180
181 return dst;
182 }
183
184 void makeStructMemberOp( ObjectDecl * dstParam, Expression * src, DeclarationWithType * field, FunctionDecl * func, TypeSubstitution & genericSubs, bool isGeneric, bool forward = true ) {
185 if ( isGeneric ) {
186 // rewrite member type in terms of the type variables on this operator
187 field = field->clone();
188 genericSubs.apply( field );
189 }
190
191 ObjectDecl * returnVal = NULL;
192 if ( ! func->get_functionType()->get_returnVals().empty() ) {
193 returnVal = dynamic_cast<ObjectDecl*>( func->get_functionType()->get_returnVals().front() );
194 }
195
196 // assign to destination (and return value if generic)
197 if ( ArrayType *array = dynamic_cast< ArrayType * >( field->get_type() ) ) {
198 UntypedExpr *derefExpr = new UntypedExpr( new NameExpr( "*?" ) );
199 derefExpr->get_args().push_back( new VariableExpr( dstParam ) );
200 Expression *dstselect = new MemberExpr( field, derefExpr );
201
202 makeArrayFunction( src, dstselect, array, func->get_name(), back_inserter( func->get_statements()->get_kids() ), forward );
203 if ( isGeneric && returnVal ) {
204 UntypedExpr *derefRet = new UntypedExpr( new NameExpr( "*?" ) );
205 derefRet->get_args().push_back( new VariableExpr( returnVal ) );
206 Expression *retselect = new MemberExpr( field, derefRet );
207
208 makeArrayFunction( src, retselect, array, func->get_name(), back_inserter( func->get_statements()->get_kids() ), forward );
209 }
210 } else {
211 makeScalarFunction( src, dstParam, field, func->get_name(), back_inserter( func->get_statements()->get_kids() ) );
212 if ( isGeneric && returnVal ) makeScalarFunction( src, returnVal, field, func->get_name(), back_inserter( func->get_statements()->get_kids() ) );
213 } // if
214 }
215
216 template<typename Iterator>
217 void makeStructFunctionBody( Iterator member, Iterator end, FunctionDecl * func, TypeSubstitution & genericSubs, bool isGeneric, bool forward = true ) {
218 for ( ; member != end; ++member ) {
219 if ( DeclarationWithType *field = dynamic_cast< DeclarationWithType * >( *member ) ) { // otherwise some form of type declaration, e.g. Aggregate
220 // query the type qualifiers of this field and skip assigning it if it is marked const.
221 // If it is an array type, we need to strip off the array layers to find its qualifiers.
222 Type * type = field->get_type();
223 while ( ArrayType * at = dynamic_cast< ArrayType * >( type ) ) {
224 type = at->get_base();
225 }
226
227 if ( type->get_qualifiers().isConst ) {
228 // don't assign const members
229 continue;
230 }
231
232 assert( ! func->get_functionType()->get_parameters().empty() );
233 ObjectDecl * dstParam = dynamic_cast<ObjectDecl*>( func->get_functionType()->get_parameters().front() );
234 ObjectDecl * srcParam = NULL;
235 if ( func->get_functionType()->get_parameters().size() == 2 ) {
236 srcParam = dynamic_cast<ObjectDecl*>( func->get_functionType()->get_parameters().back() );
237 }
238 // srcParam may be NULL, in which case we have default ctor/dtor
239 assert( dstParam );
240
241 Expression *srcselect = srcParam ? new MemberExpr( field, new VariableExpr( srcParam ) ) : NULL;
242 makeStructMemberOp( dstParam, srcselect, field, func, genericSubs, isGeneric, forward );
243 } // if
244 } // for
245 } // makeStructFunctionBody
246
247 /// generate the body of a constructor which takes parameters that match fields, e.g.
248 /// void ?{}(A *, int) and void?{}(A *, int, int) for a struct A which has two int fields.
249 template<typename Iterator>
250 void makeStructFieldCtorBody( Iterator member, Iterator end, FunctionDecl * func, TypeSubstitution & genericSubs, bool isGeneric ) {
251 FunctionType * ftype = func->get_functionType();
252 std::list<DeclarationWithType*> & params = ftype->get_parameters();
253 assert( params.size() >= 2 ); // should not call this function for default ctor, etc.
254
255 // skip 'this' parameter
256 ObjectDecl * dstParam = dynamic_cast<ObjectDecl*>( params.front() );
257 assert( dstParam );
258 std::list<DeclarationWithType*>::iterator parameter = params.begin()+1;
259 for ( ; member != end; ++member ) {
260 if ( DeclarationWithType * field = dynamic_cast<DeclarationWithType*>( *member ) ) {
261 if ( parameter != params.end() ) {
262 // matching parameter, initialize field with copy ctor
263 Expression *srcselect = new VariableExpr(*parameter);
264 makeStructMemberOp( dstParam, srcselect, field, func, genericSubs, isGeneric );
265 ++parameter;
266 } else {
267 // no matching parameter, initialize field with default ctor
268 makeStructMemberOp( dstParam, NULL, field, func, genericSubs, isGeneric );
269 }
270 }
271 }
272 }
273
274 void makeStructFunctions( StructDecl *aggregateDecl, StructInstType *refType, unsigned int functionNesting, std::list< Declaration * > & declsToAdd ) {
275 FunctionType *assignType = new FunctionType( Type::Qualifiers(), false );
276
277 // Make function polymorphic in same parameters as generic struct, if applicable
278 bool isGeneric = false; // NOTE this flag is an incredibly ugly kludge; we should fix the assignment signature instead (ditto for union)
279 std::list< TypeDecl* >& genericParams = aggregateDecl->get_parameters();
280 std::list< Expression* > structParams; // List of matching parameters to put on types
281 TypeSubstitution genericSubs; // Substitutions to make to member types of struct
282 for ( std::list< TypeDecl* >::const_iterator param = genericParams.begin(); param != genericParams.end(); ++param ) {
283 isGeneric = true;
284 TypeDecl *typeParam = cloneAndRename( *param, "_autoassign_" + aggregateDecl->get_name() + "_" + (*param)->get_name() );
285 assignType->get_forall().push_back( typeParam );
286 TypeInstType *newParamType = new TypeInstType( Type::Qualifiers(), typeParam->get_name(), typeParam );
287 genericSubs.add( (*param)->get_name(), newParamType );
288 structParams.push_back( new TypeExpr( newParamType ) );
289 }
290
291 ObjectDecl *dstParam = new ObjectDecl( "_dst", DeclarationNode::NoStorageClass, LinkageSpec::Cforall, 0, new PointerType( Type::Qualifiers(), cloneWithParams( refType, structParams ) ), 0 );
292 assignType->get_parameters().push_back( dstParam );
293
294 // void ?{}(T *); void ^?{}(T *);
295 FunctionType *ctorType = assignType->clone();
296 FunctionType *dtorType = assignType->clone();
297
298 ObjectDecl *srcParam = new ObjectDecl( "_src", DeclarationNode::NoStorageClass, LinkageSpec::Cforall, 0, cloneWithParams( refType, structParams ), 0 );
299 assignType->get_parameters().push_back( srcParam );
300
301 // void ?{}(T *, T);
302 FunctionType *copyCtorType = assignType->clone();
303
304 // T ?=?(T *, T);
305 ObjectDecl *returnVal = new ObjectDecl( "_ret", DeclarationNode::NoStorageClass, LinkageSpec::Cforall, 0, cloneWithParams( refType, structParams ), 0 );
306 assignType->get_returnVals().push_back( returnVal );
307
308 // Routines at global scope marked "static" to prevent multiple definitions is separate translation units
309 // because each unit generates copies of the default routines for each aggregate.
310 FunctionDecl *assignDecl = new FunctionDecl( "?=?", functionNesting > 0 ? DeclarationNode::NoStorageClass : DeclarationNode::Static, LinkageSpec::AutoGen, assignType, new CompoundStmt( noLabels ), true, false );
311 FunctionDecl *ctorDecl = new FunctionDecl( "?{}", functionNesting > 0 ? DeclarationNode::NoStorageClass : DeclarationNode::Static, LinkageSpec::AutoGen, ctorType, new CompoundStmt( noLabels ), true, false );
312 FunctionDecl *copyCtorDecl = new FunctionDecl( "?{}", functionNesting > 0 ? DeclarationNode::NoStorageClass : DeclarationNode::Static, LinkageSpec::AutoGen, copyCtorType, new CompoundStmt( noLabels ), true, false );
313 FunctionDecl *dtorDecl = new FunctionDecl( "^?{}", functionNesting > 0 ? DeclarationNode::NoStorageClass : DeclarationNode::Static, LinkageSpec::AutoGen, dtorType, new CompoundStmt( noLabels ), true, false );
314 assignDecl->fixUniqueId();
315 ctorDecl->fixUniqueId();
316 copyCtorDecl->fixUniqueId();
317 dtorDecl->fixUniqueId();
318
319 // create constructors which take each member type as a parameter.
320 // for example, for struct A { int x, y; }; generate
321 // void ?{}(A *, int) and void ?{}(A *, int, int)
322 std::list<Declaration *> memCtors;
323 FunctionType * memCtorType = ctorType->clone();
324 for ( std::list<Declaration *>::iterator i = aggregateDecl->get_members().begin(); i != aggregateDecl->get_members().end(); ++i ) {
325 DeclarationWithType * member = dynamic_cast<DeclarationWithType *>( *i );
326 assert( member );
327 if ( isUnnamedBitfield( dynamic_cast< ObjectDecl * > ( member ) ) ) {
328 // don't make a function whose parameter is an unnamed bitfield
329 continue;
330 }
331 memCtorType->get_parameters().push_back( new ObjectDecl( member->get_name(), DeclarationNode::NoStorageClass, LinkageSpec::Cforall, 0, member->get_type()->clone(), 0 ) );
332 FunctionDecl * ctor = new FunctionDecl( "?{}", functionNesting > 0 ? DeclarationNode::NoStorageClass : DeclarationNode::Static, LinkageSpec::AutoGen, memCtorType->clone(), new CompoundStmt( noLabels ), true, false );
333 ctor->fixUniqueId();
334 makeStructFieldCtorBody( aggregateDecl->get_members().begin(), aggregateDecl->get_members().end(), ctor, genericSubs, isGeneric );
335 memCtors.push_back( ctor );
336 }
337 delete memCtorType;
338
339 // generate appropriate calls to member ctor, assignment
340 makeStructFunctionBody( aggregateDecl->get_members().begin(), aggregateDecl->get_members().end(), assignDecl, genericSubs, isGeneric );
341 makeStructFunctionBody( aggregateDecl->get_members().begin(), aggregateDecl->get_members().end(), ctorDecl, genericSubs, isGeneric );
342 makeStructFunctionBody( aggregateDecl->get_members().begin(), aggregateDecl->get_members().end(), copyCtorDecl, genericSubs, isGeneric );
343 // needs to do everything in reverse, so pass "forward" as false
344 makeStructFunctionBody( aggregateDecl->get_members().rbegin(), aggregateDecl->get_members().rend(), dtorDecl, genericSubs, isGeneric, false );
345
346 if ( ! isGeneric ) assignDecl->get_statements()->get_kids().push_back( new ReturnStmt( noLabels, new VariableExpr( srcParam ) ) );
347
348 declsToAdd.push_back( assignDecl );
349 declsToAdd.push_back( ctorDecl );
350 declsToAdd.push_back( copyCtorDecl );
351 declsToAdd.push_back( dtorDecl );
352 declsToAdd.splice( declsToAdd.end(), memCtors );
353 }
354
355 void makeUnionFunctions( UnionDecl *aggregateDecl, UnionInstType *refType, unsigned int functionNesting, std::list< Declaration * > & declsToAdd ) {
356 FunctionType *assignType = new FunctionType( Type::Qualifiers(), false );
357
358 // Make function polymorphic in same parameters as generic union, if applicable
359 bool isGeneric = false; // NOTE this flag is an incredibly ugly kludge; we should fix the assignment signature instead (ditto for struct)
360 std::list< TypeDecl* >& genericParams = aggregateDecl->get_parameters();
361 std::list< Expression* > unionParams; // List of matching parameters to put on types
362 for ( std::list< TypeDecl* >::const_iterator param = genericParams.begin(); param != genericParams.end(); ++param ) {
363 isGeneric = true;
364 TypeDecl *typeParam = cloneAndRename( *param, "_autoassign_" + aggregateDecl->get_name() + "_" + (*param)->get_name() );
365 assignType->get_forall().push_back( typeParam );
366 unionParams.push_back( new TypeExpr( new TypeInstType( Type::Qualifiers(), typeParam->get_name(), typeParam ) ) );
367 }
368
369 ObjectDecl *dstParam = new ObjectDecl( "_dst", DeclarationNode::NoStorageClass, LinkageSpec::Cforall, 0, new PointerType( Type::Qualifiers(), cloneWithParams( refType, unionParams ) ), 0 );
370 assignType->get_parameters().push_back( dstParam );
371
372 // default ctor/dtor need only first parameter
373 FunctionType * ctorType = assignType->clone();
374 FunctionType * dtorType = assignType->clone();
375
376 ObjectDecl *srcParam = new ObjectDecl( "_src", DeclarationNode::NoStorageClass, LinkageSpec::Cforall, 0, cloneWithParams( refType, unionParams ), 0 );
377 assignType->get_parameters().push_back( srcParam );
378
379 // copy ctor needs both parameters
380 FunctionType * copyCtorType = assignType->clone();
381
382 // assignment needs both and return value
383 ObjectDecl *returnVal = new ObjectDecl( "_ret", DeclarationNode::NoStorageClass, LinkageSpec::Cforall, 0, cloneWithParams( refType, unionParams ), 0 );
384 assignType->get_returnVals().push_back( returnVal );
385
386 // Routines at global scope marked "static" to prevent multiple definitions is separate translation units
387 // because each unit generates copies of the default routines for each aggregate.
388 FunctionDecl *assignDecl = new FunctionDecl( "?=?", functionNesting > 0 ? DeclarationNode::NoStorageClass : DeclarationNode::Static, LinkageSpec::AutoGen, assignType, new CompoundStmt( noLabels ), true, false );
389 FunctionDecl *ctorDecl = new FunctionDecl( "?{}", functionNesting > 0 ? DeclarationNode::NoStorageClass : DeclarationNode::Static, LinkageSpec::AutoGen, ctorType, new CompoundStmt( noLabels ), true, false );
390 FunctionDecl *copyCtorDecl = new FunctionDecl( "?{}", functionNesting > 0 ? DeclarationNode::NoStorageClass : DeclarationNode::Static, LinkageSpec::AutoGen, copyCtorType, NULL, true, false );
391 FunctionDecl *dtorDecl = new FunctionDecl( "^?{}", functionNesting > 0 ? DeclarationNode::NoStorageClass : DeclarationNode::Static, LinkageSpec::AutoGen, dtorType, new CompoundStmt( noLabels ), true, false );
392
393 assignDecl->fixUniqueId();
394 ctorDecl->fixUniqueId();
395 copyCtorDecl->fixUniqueId();
396 dtorDecl->fixUniqueId();
397
398 makeUnionFieldsAssignment( srcParam, dstParam, cloneWithParams( refType, unionParams ), back_inserter( assignDecl->get_statements()->get_kids() ) );
399 if ( isGeneric ) makeUnionFieldsAssignment( srcParam, returnVal, cloneWithParams( refType, unionParams ), back_inserter( assignDecl->get_statements()->get_kids() ) );
400
401 if ( ! isGeneric ) assignDecl->get_statements()->get_kids().push_back( new ReturnStmt( noLabels, new VariableExpr( srcParam ) ) );
402
403 // body of assignment and copy ctor is the same
404 copyCtorDecl->set_statements( assignDecl->get_statements()->clone() );
405
406 declsToAdd.push_back( assignDecl );
407 declsToAdd.push_back( ctorDecl );
408 declsToAdd.push_back( copyCtorDecl );
409 declsToAdd.push_back( dtorDecl );
410 }
411
412 void AutogenerateRoutines::visit( EnumDecl *enumDecl ) {
413 if ( ! enumDecl->get_members().empty() ) {
414 EnumInstType *enumInst = new EnumInstType( Type::Qualifiers(), enumDecl->get_name() );
415 // enumInst->set_baseEnum( enumDecl );
416 // declsToAdd.push_back(
417 makeEnumFunctions( enumDecl, enumInst, functionNesting, declsToAdd );
418 }
419 }
420
421 void AutogenerateRoutines::visit( StructDecl *structDecl ) {
422 if ( ! structDecl->get_members().empty() && structsDone.find( structDecl->get_name() ) == structsDone.end() ) {
423 StructInstType structInst( Type::Qualifiers(), structDecl->get_name() );
424 structInst.set_baseStruct( structDecl );
425 makeStructFunctions( structDecl, &structInst, functionNesting, declsToAdd );
426 structsDone.insert( structDecl->get_name() );
427 } // if
428 }
429
430 void AutogenerateRoutines::visit( UnionDecl *unionDecl ) {
431 if ( ! unionDecl->get_members().empty() ) {
432 UnionInstType unionInst( Type::Qualifiers(), unionDecl->get_name() );
433 unionInst.set_baseUnion( unionDecl );
434 makeUnionFunctions( unionDecl, &unionInst, functionNesting, declsToAdd );
435 } // if
436 }
437
438 void AutogenerateRoutines::visit( TypeDecl *typeDecl ) {
439 CompoundStmt *stmts = 0;
440 TypeInstType *typeInst = new TypeInstType( Type::Qualifiers(), typeDecl->get_name(), false );
441 typeInst->set_baseType( typeDecl );
442 ObjectDecl *src = new ObjectDecl( "_src", DeclarationNode::NoStorageClass, LinkageSpec::Cforall, 0, typeInst->clone(), 0 );
443 ObjectDecl *dst = new ObjectDecl( "_dst", DeclarationNode::NoStorageClass, LinkageSpec::Cforall, 0, new PointerType( Type::Qualifiers(), typeInst->clone() ), 0 );
444 if ( typeDecl->get_base() ) {
445 stmts = new CompoundStmt( std::list< Label >() );
446 UntypedExpr *assign = new UntypedExpr( new NameExpr( "?=?" ) );
447 assign->get_args().push_back( new CastExpr( new VariableExpr( dst ), new PointerType( Type::Qualifiers(), typeDecl->get_base()->clone() ) ) );
448 assign->get_args().push_back( new CastExpr( new VariableExpr( src ), typeDecl->get_base()->clone() ) );
449 stmts->get_kids().push_back( new ReturnStmt( std::list< Label >(), assign ) );
450 } // if
451 FunctionType *type = new FunctionType( Type::Qualifiers(), false );
452 type->get_returnVals().push_back( new ObjectDecl( "", DeclarationNode::NoStorageClass, LinkageSpec::Cforall, 0, typeInst, 0 ) );
453 type->get_parameters().push_back( dst );
454 type->get_parameters().push_back( src );
455 FunctionDecl *func = new FunctionDecl( "?=?", DeclarationNode::NoStorageClass, LinkageSpec::AutoGen, type, stmts, false, false );
456 declsToAdd.push_back( func );
457 }
458
459 void addDecls( std::list< Declaration * > &declsToAdd, std::list< Statement * > &statements, std::list< Statement * >::iterator i ) {
460 for ( std::list< Declaration * >::iterator decl = declsToAdd.begin(); decl != declsToAdd.end(); ++decl ) {
461 statements.insert( i, new DeclStmt( noLabels, *decl ) );
462 } // for
463 declsToAdd.clear();
464 }
465
466 void AutogenerateRoutines::visit( FunctionType *) {
467 // ensure that we don't add assignment ops for types defined as part of the function
468 }
469
470 void AutogenerateRoutines::visit( PointerType *) {
471 // ensure that we don't add assignment ops for types defined as part of the pointer
472 }
473
474 void AutogenerateRoutines::visit( TraitDecl *) {
475 // ensure that we don't add assignment ops for types defined as part of the trait
476 }
477
478 template< typename StmtClass >
479 inline void AutogenerateRoutines::visitStatement( StmtClass *stmt ) {
480 std::set< std::string > oldStructs = structsDone;
481 addVisit( stmt, *this );
482 structsDone = oldStructs;
483 }
484
485 void AutogenerateRoutines::visit( FunctionDecl *functionDecl ) {
486 maybeAccept( functionDecl->get_functionType(), *this );
487 acceptAll( functionDecl->get_oldDecls(), *this );
488 functionNesting += 1;
489 maybeAccept( functionDecl->get_statements(), *this );
490 functionNesting -= 1;
491 }
492
493 void AutogenerateRoutines::visit( CompoundStmt *compoundStmt ) {
494 visitStatement( compoundStmt );
495 }
496
497 void AutogenerateRoutines::visit( SwitchStmt *switchStmt ) {
498 visitStatement( switchStmt );
499 }
500
501 void AutogenerateRoutines::visit( ChooseStmt *switchStmt ) {
502 visitStatement( switchStmt );
503 }
504
505 // void AutogenerateRoutines::visit( CaseStmt *caseStmt ) {
506 // visitStatement( caseStmt );
507 // }
508} // SymTab
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