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source: src/Common/PassVisitor.impl.h@ eada3cf

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Last change on this file since eada3cf was aa685db, checked in by Rob Schluntz <rschlunt@…>, 8 years ago
Set location when aggregating errors in PassVisitor::handleStatementList
Property mode set to `100644`
File size: 56.5 KB

Line
1	#pragma once
2	// IWYU pragma: private, include "PassVisitor.h"
3
4	#define VISIT_START( node ) \
5	__attribute__((unused)) \
6	guard_value_impl guard( at_cleanup_impl(pass, 0) ); \
7	bool visit_children = true; \
8	set_visit_children( visit_children ); \
9	call_previsit( node ); \
10	if( visit_children ) { \
11
12	#define VISIT_END( node ) \
13	} \
14	call_postvisit( node ); \
15
16	#define MUTATE_START( node ) \
17	__attribute__((unused)) \
18	guard_value_impl guard( at_cleanup_impl(pass, 0) ); \
19	bool visit_children = true; \
20	set_visit_children( visit_children ); \
21	call_premutate( node ); \
22	if( visit_children ) { \
23
24	#define MUTATE_END( type, node ) \
25	} \
26	return call_postmutate< type * >( node ); \
27
28
29	#define VISIT_BODY( node ) \
30	VISIT_START( node ); \
31	Visitor::visit( node ); \
32	VISIT_END( node ); \
33
34
35	#define MUTATE_BODY( type, node ) \
36	MUTATE_START( node ); \
37	Mutator::mutate( node ); \
38	MUTATE_END( type, node ); \
39
40
41
42	template<typename T>
43	static inline bool empty( T * ptr ) {
44	return !ptr \|\| ptr->empty();
45	}
46
47	typedef std::list< Statement * > StmtList_t;
48	typedef std::list< Declaration * > DeclList_t;
49
50	template<typename iterator_t>
51	static inline void splice( iterator_t it, DeclList_t * decls ) {
52	std::transform(
53	decls->begin(),
54	decls->end(),
55	it,
56	[](Declaration * decl) -> auto {
57	return new DeclStmt( noLabels, decl );
58	}
59	);
60	decls->clear();
61	}
62
63	template< typename pass_type >
64	static inline void acceptAll( std::list< Declaration* > &decls, PassVisitor< pass_type >& visitor ) {
65
66	DeclList_t* beforeDecls = visitor.get_beforeDecls();
67	DeclList_t* afterDecls = visitor.get_afterDecls();
68	SemanticError errors;
69
70	for ( std::list< Declaration* >::iterator i = decls.begin(); ; ++i ) {
71	// splice in new declarations after previous decl
72	if ( !empty( afterDecls ) ) { decls.splice( i, *afterDecls ); }
73
74	if ( i == decls.end() ) break;
75
76	try {
77	// run visitor on declaration
78	maybeAccept( *i, visitor );
79	} catch( SemanticError &e ) {
80	e.set_location( (*i)->location );
81	errors.append( e );
82	}
83
84	// splice in new declarations before current decl
85	if ( !empty( beforeDecls ) ) { decls.splice( i, *beforeDecls ); }
86	}
87	if ( ! errors.isEmpty() ) {
88	throw errors;
89	}
90	}
91
92	template< typename pass_type >
93	static inline void mutateAll( std::list< Declaration* > &decls, PassVisitor< pass_type >& mutator ) {
94
95	DeclList_t* beforeDecls = mutator.get_beforeDecls();
96	DeclList_t* afterDecls = mutator.get_afterDecls();
97	SemanticError errors;
98
99	for ( std::list< Declaration* >::iterator i = decls.begin(); ; ++i ) {
100	// splice in new declarations after previous decl
101	if ( !empty( afterDecls ) ) { decls.splice( i, *afterDecls ); }
102
103	if ( i == decls.end() ) break;
104	try {
105	// run mutator on declaration
106	i = maybeMutate( i, mutator );
107	} catch( SemanticError &e ) {
108	e.set_location( (*i)->location );
109	errors.append( e );
110	}
111
112	// splice in new declarations before current decl
113	if ( !empty( beforeDecls ) ) { decls.splice( i, *beforeDecls ); }
114	}
115	if ( ! errors.isEmpty() ) {
116	throw errors;
117	}
118	}
119
120	template< typename Container, typename VisitorType >
121	inline void maybeAccept( Container &container, VisitorType &visitor ) {
122	SemanticError errors;
123	for ( typename Container::iterator i = container.begin(); i != container.end(); ++i ) {
124	try {
125	if ( *i ) {
126	(*i)->accept( visitor );
127	}
128	} catch( SemanticError &e ) {
129	e.set_location( (*i)->location );
130	errors.append( e );
131	}
132	}
133	if ( ! errors.isEmpty() ) {
134	throw errors;
135	}
136	}
137
138	template< typename Container, typename MutatorType >
139	inline void maybeMutateRef( Container &container, MutatorType &mutator ) {
140	SemanticError errors;
141	for ( typename Container::iterator i = container.begin(); i != container.end(); ++i ) {
142	try {
143	if ( *i ) {
144	/// i = (i)->acceptMutator( mutator );
145	i = dynamic_cast< typename Container::value_type >( (i)->acceptMutator( mutator ) );
146	assert( *i );
147	} // if
148	} catch( SemanticError &e ) {
149	e.set_location( (*i)->location );
150	errors.append( e );
151	} // try
152	} // for
153	if ( ! errors.isEmpty() ) {
154	throw errors;
155	} // if
156	}
157
158	template< typename pass_type >
159	template< typename func_t >
160	void PassVisitor< pass_type >::handleStatementList( std::list< Statement * > & statements, func_t func ) {
161	SemanticError errors;
162
163	// don't want statements from outer CompoundStmts to be added to this CompoundStmt
164	ValueGuardPtr< StmtList_t > oldBeforeStmts( get_beforeStmts() );
165	ValueGuardPtr< StmtList_t > oldAfterStmts ( get_afterStmts () );
166	ValueGuardPtr< DeclList_t > oldBeforeDecls( get_beforeDecls() );
167	ValueGuardPtr< DeclList_t > oldAfterDecls ( get_afterDecls () );
168
169	StmtList_t* beforeStmts = get_beforeStmts();
170	StmtList_t* afterStmts = get_afterStmts();
171	DeclList_t* beforeDecls = get_beforeDecls();
172	DeclList_t* afterDecls = get_afterDecls();
173
174	for ( std::list< Statement* >::iterator i = statements.begin(); i != statements.end(); ++i ) {
175
176	if ( !empty( afterDecls ) ) { splice( std::inserter( statements, i ), afterDecls ); }
177	if ( !empty( afterStmts ) ) { statements.splice( i, *afterStmts ); }
178
179	try {
180	func( *i );
181	assert(( empty( beforeStmts ) && empty( afterStmts ))
182	\|\| ( empty( beforeDecls ) && empty( afterDecls )) );
183
184	} catch ( SemanticError &e ) {
185	e.set_location( (*i)->location );
186	errors.append( e );
187	}
188
189	if ( !empty( beforeDecls ) ) { splice( std::inserter( statements, i ), beforeDecls ); }
190	if ( !empty( beforeStmts ) ) { statements.splice( i, *beforeStmts ); }
191	}
192
193	if ( !empty( afterDecls ) ) { splice( std::back_inserter( statements ), afterDecls); }
194	if ( !empty( afterStmts ) ) { statements.splice( statements.end(), *afterStmts ); }
195	if ( !errors.isEmpty() ) { throw errors; }
196	}
197
198	template< typename pass_type >
199	void PassVisitor< pass_type >::visitStatementList( std::list< Statement * > & statements ) {
200	handleStatementList( statements, [this]( Statement * stmt) {
201	stmt->accept( *this );
202	});
203	}
204
205	template< typename pass_type >
206	void PassVisitor< pass_type >::mutateStatementList( std::list< Statement * > & statements ) {
207	handleStatementList( statements, [this]( Statement *& stmt) {
208	stmt = stmt->acceptMutator( *this );
209	});
210	}
211
212
213	template< typename pass_type >
214	template< typename func_t >
215	Statement * PassVisitor< pass_type >::handleStatement( Statement * stmt, func_t func ) {
216	// don't want statements from outer CompoundStmts to be added to this CompoundStmt
217	ValueGuardPtr< TypeSubstitution * > oldEnv ( get_env_ptr () );
218	ValueGuardPtr< DeclList_t > oldBeforeDecls( get_beforeDecls() );
219	ValueGuardPtr< DeclList_t > oldAfterDecls ( get_afterDecls () );
220	ValueGuardPtr< StmtList_t > oldBeforeStmts( get_beforeStmts() );
221	ValueGuardPtr< StmtList_t > oldAfterStmts ( get_afterStmts () );
222
223	Statement *newStmt = func( stmt );
224
225	StmtList_t* beforeStmts = get_beforeStmts();
226	StmtList_t* afterStmts = get_afterStmts();
227	DeclList_t* beforeDecls = get_beforeDecls();
228	DeclList_t* afterDecls = get_afterDecls();
229
230	if( empty(beforeStmts) && empty(afterStmts) && empty(beforeDecls) && empty(afterDecls) ) { return newStmt; }
231	assert(( empty( beforeStmts ) && empty( afterStmts ))
232	\|\| ( empty( beforeDecls ) && empty( afterDecls )) );
233
234	CompoundStmt *compound = new CompoundStmt( noLabels );
235	if( !empty(beforeDecls) ) { splice( std::back_inserter( compound->get_kids() ), beforeDecls ); }
236	if( !empty(beforeStmts) ) { compound->get_kids().splice( compound->get_kids().end(), *beforeStmts ); }
237	compound->get_kids().push_back( newStmt );
238	if( !empty(afterDecls) ) { splice( std::back_inserter( compound->get_kids() ), afterDecls ); }
239	if( !empty(afterStmts) ) { compound->get_kids().splice( compound->get_kids().end(), *afterStmts ); }
240	return compound;
241	}
242
243	template< typename pass_type >
244	Statement * PassVisitor< pass_type >::visitStatement( Statement * stmt ) {
245	return handleStatement( stmt, [this]( Statement * stmt ) {
246	maybeAccept( stmt, *this );
247	return stmt;
248	});
249	}
250
251	template< typename pass_type >
252	Statement * PassVisitor< pass_type >::mutateStatement( Statement * stmt ) {
253	return handleStatement( stmt, [this]( Statement * stmt ) {
254	return maybeMutate( stmt, *this );
255	});
256	}
257
258	template< typename pass_type >
259	template< typename func_t >
260	Expression * PassVisitor< pass_type >::handleExpression( Expression * expr, func_t func ) {
261	if( !expr ) return nullptr;
262
263	auto env_ptr = get_env_ptr();
264	if ( env_ptr && expr->get_env() ) {
265	*env_ptr = expr->get_env();
266	}
267
268	// should env be cloned (or moved) onto the result of the mutate?
269	return func( expr );
270	}
271
272	template< typename pass_type >
273	Expression * PassVisitor< pass_type >::visitExpression( Expression * expr ) {
274	return handleExpression(expr, [this]( Expression * expr ) {
275	expr->accept( *this );
276	return expr;
277	});
278	}
279
280	template< typename pass_type >
281	Expression * PassVisitor< pass_type >::mutateExpression( Expression * expr ) {
282	return handleExpression(expr, [this]( Expression * expr ) {
283	return expr->acceptMutator( *this );
284	});
285	}
286
287	//------------------------------------------------------------------------------------------------------------------------------------------------------------------------
288	//========================================================================================================================================================================
289	//========================================================================================================================================================================
290	//========================================================================================================================================================================
291	//========================================================================================================================================================================
292	//========================================================================================================================================================================
293	//------------------------------------------------------------------------------------------------------------------------------------------------------------------------
294
295
296	//--------------------------------------------------------------------------
297	// ObjectDecl
298	template< typename pass_type >
299	void PassVisitor< pass_type >::visit( ObjectDecl * node ) {
300	VISIT_START( node );
301
302	indexerScopedAccept( node->type , *this );
303	maybeAccept ( node->init , *this );
304	maybeAccept ( node->bitfieldWidth, *this );
305
306	if ( node->name != "" ) {
307	indexerAddId( node );
308	}
309
310	VISIT_END( node );
311	}
312
313	template< typename pass_type >
314	DeclarationWithType * PassVisitor< pass_type >::mutate( ObjectDecl * node ) {
315	MUTATE_START( node );
316
317	indexerScopedMutate( node->type , *this );
318	maybeMutateRef ( node->init , *this );
319	maybeMutateRef ( node->bitfieldWidth, *this );
320
321	if ( node->name != "" ) {
322	indexerAddId( node );
323	}
324
325	MUTATE_END( DeclarationWithType, node );
326	}
327
328	//--------------------------------------------------------------------------
329	// FunctionDecl
330	template< typename pass_type >
331	void PassVisitor< pass_type >::visit( FunctionDecl * node ) {
332	VISIT_START( node );
333
334	if ( node->name != "" ) {
335	indexerAddId( node );
336	}
337
338	{
339	auto guard = makeFuncGuard( [this]() { indexerScopeEnter(); }, [this]() { indexerScopeLeave(); } );
340	maybeAccept( node->type, *this );
341	maybeAccept( node->statements, *this );
342	}
343
344	VISIT_END( node );
345	}
346
347	template< typename pass_type >
348	DeclarationWithType * PassVisitor< pass_type >::mutate( FunctionDecl * node ) {
349	MUTATE_START( node );
350
351	if ( node->name != "" ) {
352	indexerAddId( node );
353	}
354
355	{
356	auto guard = makeFuncGuard( [this]() { indexerScopeEnter(); }, [this]() { indexerScopeLeave(); } );
357	maybeMutateRef( node->type, *this );
358	maybeMutateRef( node->statements, *this );
359	}
360
361	MUTATE_END( DeclarationWithType, node );
362	}
363
364	//--------------------------------------------------------------------------
365	// StructDecl
366	template< typename pass_type >
367	void PassVisitor< pass_type >::visit( StructDecl * node ) {
368	VISIT_START( node );
369
370	// make up a forward declaration and add it before processing the members
371	// needs to be on the heap because addStruct saves the pointer
372	indexerAddStructFwd( node );
373
374	{
375	auto guard = makeFuncGuard( [this]() { indexerScopeEnter(); }, [this]() { indexerScopeLeave(); } );
376	maybeAccept( node->parameters, *this );
377	maybeAccept( node->members , *this );
378	}
379
380	// this addition replaces the forward declaration
381	indexerAddStruct( node );
382
383	VISIT_END( node );
384	}
385
386	template< typename pass_type >
387	Declaration * PassVisitor< pass_type >::mutate( StructDecl * node ) {
388	MUTATE_START( node );
389
390	// make up a forward declaration and add it before processing the members
391	// needs to be on the heap because addStruct saves the pointer
392	indexerAddStructFwd( node );
393
394	{
395	auto guard = makeFuncGuard( [this]() { indexerScopeEnter(); }, [this]() { indexerScopeLeave(); } );
396	maybeMutateRef( node->parameters, *this );
397	maybeMutateRef( node->members , *this );
398	}
399
400	// this addition replaces the forward declaration
401	indexerAddStruct( node );
402
403	MUTATE_END( Declaration, node );
404	}
405
406	//--------------------------------------------------------------------------
407	// UnionDecl
408	template< typename pass_type >
409	void PassVisitor< pass_type >::visit( UnionDecl * node ) {
410	VISIT_START( node );
411
412	// make up a forward declaration and add it before processing the members
413	indexerAddUnionFwd( node );
414
415	{
416	auto guard = makeFuncGuard( [this]() { indexerScopeEnter(); }, [this]() { indexerScopeLeave(); } );
417	maybeAccept( node->parameters, *this );
418	maybeAccept( node->members , *this );
419	}
420
421	indexerAddUnion( node );
422
423	VISIT_END( node );
424	}
425
426	template< typename pass_type >
427	Declaration * PassVisitor< pass_type >::mutate( UnionDecl * node ) {
428	MUTATE_START( node );
429
430	// make up a forward declaration and add it before processing the members
431	indexerAddUnionFwd( node );
432
433	{
434	auto guard = makeFuncGuard( [this]() { indexerScopeEnter(); }, [this]() { indexerScopeLeave(); } );
435	maybeMutateRef( node->parameters, *this );
436	maybeMutateRef( node->members , *this );
437	}
438
439	indexerAddUnion( node );
440
441	MUTATE_END( Declaration, node );
442	}
443
444	//--------------------------------------------------------------------------
445	// EnumDecl
446	template< typename pass_type >
447	void PassVisitor< pass_type >::visit( EnumDecl * node ) {
448	VISIT_START( node );
449
450	indexerAddEnum( node );
451
452	// unlike structs, contexts, and unions, enums inject their members into the global scope
453	maybeAccept( node->parameters, *this );
454	maybeAccept( node->members , *this );
455
456	VISIT_END( node );
457	}
458
459	template< typename pass_type >
460	Declaration * PassVisitor< pass_type >::mutate( EnumDecl * node ) {
461	MUTATE_START( node );
462
463	indexerAddEnum( node );
464
465	// unlike structs, traits, and unions, enums inject their members into the global scope
466	maybeMutateRef( node->parameters, *this );
467	maybeMutateRef( node->members , *this );
468
469	MUTATE_END( Declaration, node );
470	}
471
472	//--------------------------------------------------------------------------
473	// TraitDecl
474	template< typename pass_type >
475	void PassVisitor< pass_type >::visit( TraitDecl * node ) {
476	VISIT_START( node );
477
478	{
479	auto guard = makeFuncGuard( [this]() { indexerScopeEnter(); }, [this]() { indexerScopeLeave(); } );
480	maybeAccept( node->parameters, *this );
481	maybeAccept( node->members , *this );
482	}
483
484	indexerAddTrait( node );
485
486	VISIT_END( node );
487	}
488
489	template< typename pass_type >
490	Declaration * PassVisitor< pass_type >::mutate( TraitDecl * node ) {
491	MUTATE_START( node );
492
493	{
494	auto guard = makeFuncGuard( [this]() { indexerScopeEnter(); }, [this]() { indexerScopeLeave(); } );
495	maybeMutateRef( node->parameters, *this );
496	maybeMutateRef( node->members , *this );
497	}
498
499	indexerAddTrait( node );
500
501	MUTATE_END( Declaration, node );
502	}
503
504	//--------------------------------------------------------------------------
505	// TypeDecl
506	template< typename pass_type >
507	void PassVisitor< pass_type >::visit( TypeDecl * node ) {
508	VISIT_START( node );
509
510	{
511	auto guard = makeFuncGuard( [this]() { indexerScopeEnter(); }, [this]() { indexerScopeLeave(); } );
512	maybeAccept( node->parameters, *this );
513	maybeAccept( node->base , *this );
514	}
515
516	indexerAddType( node );
517
518	maybeAccept( node->assertions, *this );
519
520	indexerScopedAccept( node->init, *this );
521
522	VISIT_END( node );
523	}
524
525	template< typename pass_type >
526	Declaration * PassVisitor< pass_type >::mutate( TypeDecl * node ) {
527	MUTATE_START( node );
528
529	{
530	auto guard = makeFuncGuard( [this]() { indexerScopeEnter(); }, [this]() { indexerScopeLeave(); } );
531	maybeMutateRef( node->parameters, *this );
532	maybeMutateRef( node->base , *this );
533	}
534
535	indexerAddType( node );
536
537	maybeMutateRef( node->assertions, *this );
538
539	indexerScopedMutate( node->init, *this );
540
541	MUTATE_END( Declaration, node );
542	}
543
544	//--------------------------------------------------------------------------
545	// TypedefDecl
546	template< typename pass_type >
547	void PassVisitor< pass_type >::visit( TypedefDecl * node ) {
548	VISIT_START( node );
549
550	{
551	auto guard = makeFuncGuard( [this]() { indexerScopeEnter(); }, [this]() { indexerScopeLeave(); } );
552	maybeAccept( node->parameters, *this );
553	maybeAccept( node->base , *this );
554	}
555
556	indexerAddType( node );
557
558	maybeAccept( node->assertions, *this );
559
560	VISIT_END( node );
561	}
562
563	template< typename pass_type >
564	Declaration * PassVisitor< pass_type >::mutate( TypedefDecl * node ) {
565	MUTATE_START( node );
566
567	{
568	auto guard = makeFuncGuard( [this]() { indexerScopeEnter(); }, [this]() { indexerScopeLeave(); } );
569	maybeMutateRef ( node->parameters, *this );
570	maybeMutateRef( node->base , *this );
571	}
572
573	indexerAddType( node );
574
575	maybeMutateRef( node->assertions, *this );
576
577	MUTATE_END( Declaration, node );
578	}
579
580	//--------------------------------------------------------------------------
581	// AsmDecl
582	template< typename pass_type >
583	void PassVisitor< pass_type >::visit( AsmDecl * node ) {
584	VISIT_START( node );
585
586	maybeAccept( node->stmt, *this );
587
588	VISIT_END( node );
589	}
590
591	template< typename pass_type >
592	AsmDecl * PassVisitor< pass_type >::mutate( AsmDecl * node ) {
593	MUTATE_START( node );
594
595	maybeMutateRef( node->stmt, *this );
596
597	MUTATE_END( AsmDecl, node );
598	}
599
600	//--------------------------------------------------------------------------
601	// CompoundStmt
602	template< typename pass_type >
603	void PassVisitor< pass_type >::visit( CompoundStmt * node ) {
604	VISIT_START( node );
605	{
606	auto guard1 = makeFuncGuard( [this]() { indexerScopeEnter(); }, [this]() { indexerScopeLeave(); } );
607	auto guard2 = makeFuncGuard( [this]() { call_beginScope(); }, [this]() { call_endScope(); } );
608	visitStatementList( node->kids );
609	}
610	VISIT_END( node );
611	}
612
613	template< typename pass_type >
614	CompoundStmt * PassVisitor< pass_type >::mutate( CompoundStmt * node ) {
615	MUTATE_START( node );
616	{
617	auto guard1 = makeFuncGuard( [this]() { indexerScopeEnter(); }, [this]() { indexerScopeLeave(); } );
618	auto guard2 = makeFuncGuard( [this]() { call_beginScope(); }, [this]() { call_endScope(); } );
619	mutateStatementList( node->kids );
620	}
621	MUTATE_END( CompoundStmt, node );
622	}
623
624	//--------------------------------------------------------------------------
625	// ExprStmt
626	template< typename pass_type >
627	void PassVisitor< pass_type >::visit( ExprStmt * node ) {
628	VISIT_START( node );
629
630	visitExpression( node->expr );
631
632	VISIT_END( node );
633	}
634
635	template< typename pass_type >
636	Statement * PassVisitor< pass_type >::mutate( ExprStmt * node ) {
637	MUTATE_START( node );
638
639	node->expr = mutateExpression( node->expr );
640
641	MUTATE_END( Statement, node );
642	}
643
644	//--------------------------------------------------------------------------
645	// AsmStmt
646	template< typename pass_type >
647	void PassVisitor< pass_type >::visit( AsmStmt * node ) {
648	VISIT_BODY( node );
649	}
650
651	template< typename pass_type >
652	Statement * PassVisitor< pass_type >::mutate( AsmStmt * node ) {
653	MUTATE_BODY( Statement, node );
654	}
655
656	//--------------------------------------------------------------------------
657	// IfStmt
658	template< typename pass_type >
659	void PassVisitor< pass_type >::visit( IfStmt * node ) {
660	VISIT_START( node );
661
662	visitExpression( node->condition );
663	node->thenPart = visitStatement( node->thenPart );
664	node->elsePart = visitStatement( node->elsePart );
665
666	VISIT_END( node );
667	}
668
669	template< typename pass_type >
670	Statement * PassVisitor< pass_type >::mutate( IfStmt * node ) {
671	MUTATE_START( node );
672	{
673	auto guard = makeFuncGuard( [this]() { indexerScopeEnter(); }, [this]() { indexerScopeLeave(); } );
674	node->condition = mutateExpression( node->condition );
675	node->thenPart = mutateStatement ( node->thenPart );
676	node->elsePart = mutateStatement ( node->elsePart );
677	}
678	MUTATE_END( Statement, node );
679	}
680
681	//--------------------------------------------------------------------------
682	// WhileStmt
683	template< typename pass_type >
684	void PassVisitor< pass_type >::visit( WhileStmt * node ) {
685	VISIT_START( node );
686
687	visitExpression( node->condition );
688	node->body = visitStatement( node->body );
689
690	VISIT_END( node );
691	}
692
693	template< typename pass_type >
694	Statement * PassVisitor< pass_type >::mutate( WhileStmt * node ) {
695	MUTATE_START( node );
696
697	node->condition = mutateExpression( node->condition );
698	node->body = mutateStatement ( node->body );
699
700	MUTATE_END( Statement, node );
701	}
702
703	//--------------------------------------------------------------------------
704	// ForStmt
705	template< typename pass_type >
706	void PassVisitor< pass_type >::visit( ForStmt * node ) {
707	VISIT_START( node );
708	{
709	auto guard = makeFuncGuard( [this]() { indexerScopeEnter(); }, [this]() { indexerScopeLeave(); } );
710	maybeAccept( node->initialization, *this );
711	visitExpression( node->condition );
712	visitExpression( node->increment );
713	node->body = visitStatement( node->body );
714	}
715	VISIT_END( node );
716	}
717
718	template< typename pass_type >
719	Statement * PassVisitor< pass_type >::mutate( ForStmt * node ) {
720	MUTATE_START( node );
721	{
722	auto guard = makeFuncGuard( [this]() { indexerScopeEnter(); }, [this]() { indexerScopeLeave(); } );
723	maybeMutateRef( node->initialization, *this );
724	node->condition = mutateExpression( node->condition );
725	node->increment = mutateExpression( node->increment );
726	node->body = mutateStatement ( node->body );
727	}
728	MUTATE_END( Statement, node );
729	}
730
731	//--------------------------------------------------------------------------
732	// SwitchStmt
733	template< typename pass_type >
734	void PassVisitor< pass_type >::visit( SwitchStmt * node ) {
735	VISIT_START( node );
736
737	visitExpression ( node->condition );
738	visitStatementList( node->statements );
739
740	VISIT_END( node );
741	}
742
743	template< typename pass_type >
744	Statement * PassVisitor< pass_type >::mutate( SwitchStmt * node ) {
745	MUTATE_START( node );
746
747	node->condition = mutateExpression( node->condition );
748	mutateStatementList( node->statements );
749
750	MUTATE_END( Statement, node );
751	}
752
753	//--------------------------------------------------------------------------
754	// CaseStmt
755	template< typename pass_type >
756	void PassVisitor< pass_type >::visit( CaseStmt * node ) {
757	VISIT_START( node );
758
759	visitExpression ( node->condition );
760	visitStatementList( node->stmts );
761
762	VISIT_END( node );
763	}
764
765	template< typename pass_type >
766	Statement * PassVisitor< pass_type >::mutate( CaseStmt * node ) {
767	MUTATE_START( node );
768
769	node->condition = mutateExpression( node->condition );
770	mutateStatementList( node->stmts );
771
772	MUTATE_END( Statement, node );
773	}
774
775	//--------------------------------------------------------------------------
776	// BranchStmt
777	template< typename pass_type >
778	void PassVisitor< pass_type >::visit( BranchStmt * node ) {
779	VISIT_BODY( node );
780	}
781
782	template< typename pass_type >
783	Statement * PassVisitor< pass_type >::mutate( BranchStmt * node ) {
784	MUTATE_BODY( Statement, node );
785	}
786
787	//--------------------------------------------------------------------------
788	// ReturnStmt
789	template< typename pass_type >
790	void PassVisitor< pass_type >::visit( ReturnStmt * node ) {
791	VISIT_START( node );
792
793	visitExpression( node->expr );
794
795	VISIT_END( node );
796	}
797
798	template< typename pass_type >
799	Statement * PassVisitor< pass_type >::mutate( ReturnStmt * node ) {
800	MUTATE_START( node );
801
802	node->expr = mutateExpression( node->expr );
803
804	MUTATE_END( Statement, node );
805	}
806
807	//--------------------------------------------------------------------------
808	// ThrowStmt
809
810	template< typename pass_type >
811	void PassVisitor< pass_type >::visit( ThrowStmt * node ) {
812	VISIT_BODY( node );
813	}
814
815	template< typename pass_type >
816	Statement * PassVisitor< pass_type >::mutate( ThrowStmt * node ) {
817	MUTATE_BODY( Statement, node );
818	}
819
820	//--------------------------------------------------------------------------
821	// TryStmt
822	template< typename pass_type >
823	void PassVisitor< pass_type >::visit( TryStmt * node ) {
824	VISIT_START( node );
825
826	maybeAccept( node->block , *this );
827	maybeAccept( node->handlers , *this );
828	maybeAccept( node->finallyBlock, *this );
829
830	VISIT_END( node );
831	}
832
833	template< typename pass_type >
834	Statement * PassVisitor< pass_type >::mutate( TryStmt * node ) {
835	MUTATE_START( node );
836
837	maybeMutateRef( node->block , *this );
838	maybeMutateRef( node->handlers , *this );
839	maybeMutateRef( node->finallyBlock, *this );
840
841	MUTATE_END( Statement, node );
842	}
843
844	//--------------------------------------------------------------------------
845	// CatchStmt
846	template< typename pass_type >
847	void PassVisitor< pass_type >::visit( CatchStmt * node ) {
848	VISIT_START( node );
849	{
850	auto guard = makeFuncGuard( [this]() { indexerScopeEnter(); }, [this]() { indexerScopeLeave(); } );
851	maybeAccept( node->decl, *this );
852	node->cond = visitExpression( node->cond );
853	node->body = visitStatement ( node->body );
854	}
855	VISIT_END( node );
856	}
857
858	template< typename pass_type >
859	Statement * PassVisitor< pass_type >::mutate( CatchStmt * node ) {
860	MUTATE_START( node );
861	{
862	auto guard = makeFuncGuard( [this]() { indexerScopeEnter(); }, [this]() { indexerScopeLeave(); } );
863	maybeMutateRef( node->decl, *this );
864	node->cond = mutateExpression( node->cond );
865	node->body = mutateStatement ( node->body );
866	}
867	MUTATE_END( Statement, node );
868	}
869
870	//--------------------------------------------------------------------------
871	// FinallyStmt
872	template< typename pass_type >
873	void PassVisitor< pass_type >::visit( FinallyStmt * node ) {
874	VISIT_BODY( node );
875	}
876
877	template< typename pass_type >
878	Statement * PassVisitor< pass_type >::mutate( FinallyStmt * node ) {
879	MUTATE_BODY( Statement, node );
880	}
881
882	//--------------------------------------------------------------------------
883	// WaitForStmt
884	template< typename pass_type >
885	void PassVisitor< pass_type >::visit( WaitForStmt * node ) {
886	VISIT_BODY( node );
887	}
888
889	template< typename pass_type >
890	Statement * PassVisitor< pass_type >::mutate( WaitForStmt * node ) {
891	MUTATE_BODY( Statement, node );
892	}
893
894	//--------------------------------------------------------------------------
895	// NullStmt
896	template< typename pass_type >
897	void PassVisitor< pass_type >::visit( NullStmt * node ) {
898	VISIT_BODY( node );
899	}
900
901	template< typename pass_type >
902	NullStmt * PassVisitor< pass_type >::mutate( NullStmt * node ) {
903	MUTATE_BODY( NullStmt, node );
904	}
905
906	//--------------------------------------------------------------------------
907	// DeclStmt
908	template< typename pass_type >
909	void PassVisitor< pass_type >::visit( DeclStmt * node ) {
910	VISIT_BODY( node );
911	}
912
913	template< typename pass_type >
914	Statement * PassVisitor< pass_type >::mutate( DeclStmt * node ) {
915	MUTATE_BODY( Statement, node );
916	}
917
918	//--------------------------------------------------------------------------
919	// ImplicitCtorDtorStmt
920	template< typename pass_type >
921	void PassVisitor< pass_type >::visit( ImplicitCtorDtorStmt * node ) {
922	VISIT_BODY( node );
923	}
924
925	template< typename pass_type >
926	Statement * PassVisitor< pass_type >::mutate( ImplicitCtorDtorStmt * node ) {
927	MUTATE_BODY( Statement, node );
928	}
929
930	//--------------------------------------------------------------------------
931	// ApplicationExpr
932	template< typename pass_type >
933	void PassVisitor< pass_type >::visit( ApplicationExpr * node ) {
934	VISIT_START( node );
935
936	indexerScopedAccept( node->result , *this );
937	maybeAccept ( node->function, *this );
938	maybeAccept ( node->args , *this );
939
940	VISIT_END( node );
941	}
942
943	template< typename pass_type >
944	Expression * PassVisitor< pass_type >::mutate( ApplicationExpr * node ) {
945	MUTATE_START( node );
946
947	indexerScopedMutate( node->env , *this );
948	indexerScopedMutate( node->result , *this );
949	maybeMutateRef ( node->function, *this );
950	maybeMutateRef ( node->args , *this );
951
952	MUTATE_END( Expression, node );
953	}
954
955	//--------------------------------------------------------------------------
956	// UntypedExpr
957	template< typename pass_type >
958	void PassVisitor< pass_type >::visit( UntypedExpr * node ) {
959	VISIT_START( node );
960
961	// maybeAccept( node->get_env(), *this );
962	indexerScopedAccept( node->result, *this );
963
964	for ( auto expr : node->args ) {
965	visitExpression( expr );
966	}
967
968	VISIT_END( node );
969	}
970
971	template< typename pass_type >
972	Expression * PassVisitor< pass_type >::mutate( UntypedExpr * node ) {
973	MUTATE_START( node );
974
975	indexerScopedMutate( node->env , *this );
976	indexerScopedMutate( node->result, *this );
977
978	for ( auto& expr : node->args ) {
979	expr = mutateExpression( expr );
980	}
981
982	MUTATE_END( Expression, node );
983	}
984
985	//--------------------------------------------------------------------------
986	// NameExpr
987	template< typename pass_type >
988	void PassVisitor< pass_type >::visit( NameExpr * node ) {
989	VISIT_START( node );
990
991	indexerScopedAccept( node->result, *this );
992
993	VISIT_END( node );
994	}
995
996	template< typename pass_type >
997	Expression * PassVisitor< pass_type >::mutate( NameExpr * node ) {
998	MUTATE_START( node );
999
1000	indexerScopedMutate( node->env , *this );
1001	indexerScopedMutate( node->result, *this );
1002
1003	MUTATE_END( Expression, node );
1004	}
1005
1006	//--------------------------------------------------------------------------
1007	// CastExpr
1008	template< typename pass_type >
1009	void PassVisitor< pass_type >::visit( CastExpr * node ) {
1010	VISIT_START( node );
1011
1012	indexerScopedAccept( node->result, *this );
1013	maybeAccept ( node->arg , *this );
1014
1015	VISIT_END( node );
1016	}
1017
1018	template< typename pass_type >
1019	Expression * PassVisitor< pass_type >::mutate( CastExpr * node ) {
1020	MUTATE_START( node );
1021
1022	indexerScopedMutate( node->env , *this );
1023	indexerScopedMutate( node->result, *this );
1024	maybeMutateRef ( node->arg , *this );
1025
1026	MUTATE_END( Expression, node );
1027	}
1028
1029	//--------------------------------------------------------------------------
1030	// VirtualCastExpr
1031	template< typename pass_type >
1032	void PassVisitor< pass_type >::visit( VirtualCastExpr * node ) {
1033	VISIT_START( node );
1034
1035	indexerScopedAccept( node->result, *this );
1036	maybeAccept( node->arg, *this );
1037
1038	VISIT_END( node );
1039	}
1040
1041	template< typename pass_type >
1042	Expression * PassVisitor< pass_type >::mutate( VirtualCastExpr * node ) {
1043	MUTATE_START( node );
1044
1045	indexerScopedMutate( node->env , *this );
1046	indexerScopedMutate( node->result, *this );
1047	maybeMutateRef ( node->arg , *this );
1048
1049	MUTATE_END( Expression, node );
1050	}
1051
1052	//--------------------------------------------------------------------------
1053	// AddressExpr
1054	template< typename pass_type >
1055	void PassVisitor< pass_type >::visit( AddressExpr * node ) {
1056	VISIT_START( node );
1057
1058	indexerScopedAccept( node->result, *this );
1059	maybeAccept ( node->arg , *this );
1060
1061	VISIT_END( node );
1062	}
1063
1064	template< typename pass_type >
1065	Expression * PassVisitor< pass_type >::mutate( AddressExpr * node ) {
1066	MUTATE_START( node );
1067
1068	indexerScopedMutate( node->env , *this );
1069	indexerScopedMutate( node->result, *this );
1070	maybeMutateRef ( node->arg , *this );
1071
1072	MUTATE_END( Expression, node );
1073	}
1074
1075	//--------------------------------------------------------------------------
1076	// LabelAddressExpr
1077	template< typename pass_type >
1078	void PassVisitor< pass_type >::visit( LabelAddressExpr * node ) {
1079	VISIT_START( node );
1080
1081	indexerScopedAccept( node->result, *this );
1082
1083	VISIT_END( node );
1084	}
1085
1086	template< typename pass_type >
1087	Expression * PassVisitor< pass_type >::mutate( LabelAddressExpr * node ) {
1088	MUTATE_START( node );
1089
1090	indexerScopedMutate( node->env , *this );
1091	indexerScopedMutate( node->result, *this );
1092
1093	MUTATE_END( Expression, node );
1094	}
1095
1096	//--------------------------------------------------------------------------
1097	// UntypedMemberExpr
1098	template< typename pass_type >
1099	void PassVisitor< pass_type >::visit( UntypedMemberExpr * node ) {
1100	VISIT_START( node );
1101
1102	indexerScopedAccept( node->result , *this );
1103	maybeAccept ( node->aggregate, *this );
1104	maybeAccept ( node->member , *this );
1105
1106	VISIT_END( node );
1107	}
1108
1109	template< typename pass_type >
1110	Expression * PassVisitor< pass_type >::mutate( UntypedMemberExpr * node ) {
1111	MUTATE_START( node );
1112
1113	indexerScopedMutate( node->env , *this );
1114	indexerScopedMutate( node->result , *this );
1115	maybeMutateRef ( node->aggregate, *this );
1116	maybeMutateRef ( node->member , *this );
1117
1118	MUTATE_END( Expression, node );
1119	}
1120
1121	//--------------------------------------------------------------------------
1122	// MemberExpr
1123	template< typename pass_type >
1124	void PassVisitor< pass_type >::visit( MemberExpr * node ) {
1125	VISIT_START( node );
1126
1127	indexerScopedAccept( node->result , *this );
1128	maybeAccept ( node->aggregate, *this );
1129
1130	VISIT_END( node );
1131	}
1132
1133	template< typename pass_type >
1134	Expression * PassVisitor< pass_type >::mutate( MemberExpr * node ) {
1135	MUTATE_START( node );
1136
1137	indexerScopedMutate( node->env , *this );
1138	indexerScopedMutate( node->result , *this );
1139	maybeMutateRef ( node->aggregate, *this );
1140
1141	MUTATE_END( Expression, node );
1142	}
1143
1144	//--------------------------------------------------------------------------
1145	// VariableExpr
1146	template< typename pass_type >
1147	void PassVisitor< pass_type >::visit( VariableExpr * node ) {
1148	VISIT_START( node );
1149
1150	indexerScopedAccept( node->result, *this );
1151
1152	VISIT_END( node );
1153	}
1154
1155	template< typename pass_type >
1156	Expression * PassVisitor< pass_type >::mutate( VariableExpr * node ) {
1157	MUTATE_START( node );
1158
1159	indexerScopedMutate( node->env , *this );
1160	indexerScopedMutate( node->result, *this );
1161
1162	MUTATE_END( Expression, node );
1163	}
1164
1165	//--------------------------------------------------------------------------
1166	// ConstantExpr
1167	template< typename pass_type >
1168	void PassVisitor< pass_type >::visit( ConstantExpr * node ) {
1169	VISIT_START( node );
1170
1171	indexerScopedAccept( node->result , *this );
1172	maybeAccept ( &node->constant, *this );
1173
1174	VISIT_END( node );
1175	}
1176
1177	template< typename pass_type >
1178	Expression * PassVisitor< pass_type >::mutate( ConstantExpr * node ) {
1179	MUTATE_START( node );
1180
1181	indexerScopedMutate( node->env , *this );
1182	indexerScopedMutate( node->result, *this );
1183	node->constant = maybeMutate( &node->constant, this );
1184
1185	MUTATE_END( Expression, node );
1186	}
1187
1188	//--------------------------------------------------------------------------
1189	// SizeofExpr
1190	template< typename pass_type >
1191	void PassVisitor< pass_type >::visit( SizeofExpr * node ) {
1192	VISIT_START( node );
1193
1194	indexerScopedAccept( node->result, *this );
1195	if ( node->get_isType() ) {
1196	maybeAccept( node->type, *this );
1197	} else {
1198	maybeAccept( node->expr, *this );
1199	}
1200
1201	VISIT_END( node );
1202	}
1203
1204	template< typename pass_type >
1205	Expression * PassVisitor< pass_type >::mutate( SizeofExpr * node ) {
1206	MUTATE_START( node );
1207
1208	indexerScopedMutate( node->env , *this );
1209	indexerScopedMutate( node->result, *this );
1210	if ( node->get_isType() ) {
1211	maybeMutateRef( node->type, *this );
1212	} else {
1213	maybeMutateRef( node->expr, *this );
1214	}
1215
1216	MUTATE_END( Expression, node );
1217	}
1218
1219	//--------------------------------------------------------------------------
1220	// AlignofExpr
1221	template< typename pass_type >
1222	void PassVisitor< pass_type >::visit( AlignofExpr * node ) {
1223	VISIT_START( node );
1224
1225	indexerScopedAccept( node->result, *this );
1226	if ( node->get_isType() ) {
1227	maybeAccept( node->type, *this );
1228	} else {
1229	maybeAccept( node->expr, *this );
1230	}
1231
1232	VISIT_END( node );
1233	}
1234
1235	template< typename pass_type >
1236	Expression * PassVisitor< pass_type >::mutate( AlignofExpr * node ) {
1237	MUTATE_START( node );
1238
1239	indexerScopedMutate( node->env , *this );
1240	indexerScopedMutate( node->result, *this );
1241	if ( node->get_isType() ) {
1242	maybeMutateRef( node->type, *this );
1243	} else {
1244	maybeMutateRef( node->expr, *this );
1245	}
1246
1247	MUTATE_END( Expression, node );
1248	}
1249
1250	//--------------------------------------------------------------------------
1251	// UntypedOffsetofExpr
1252	template< typename pass_type >
1253	void PassVisitor< pass_type >::visit( UntypedOffsetofExpr * node ) {
1254	VISIT_START( node );
1255
1256	indexerScopedAccept( node->result, *this );
1257	maybeAccept ( node->type , *this );
1258
1259	VISIT_END( node );
1260	}
1261
1262	template< typename pass_type >
1263	Expression * PassVisitor< pass_type >::mutate( UntypedOffsetofExpr * node ) {
1264	MUTATE_START( node );
1265
1266	indexerScopedMutate( node->env , *this );
1267	indexerScopedMutate( node->result, *this );
1268	maybeMutateRef ( node->type , *this );
1269
1270	MUTATE_END( Expression, node );
1271	}
1272
1273	//--------------------------------------------------------------------------
1274	// OffsetofExpr
1275	template< typename pass_type >
1276	void PassVisitor< pass_type >::visit( OffsetofExpr * node ) {
1277	VISIT_START( node );
1278
1279	indexerScopedAccept( node->result, *this );
1280	maybeAccept ( node->type , *this );
1281	maybeAccept ( node->member, *this );
1282
1283	VISIT_END( node );
1284	}
1285
1286	template< typename pass_type >
1287	Expression * PassVisitor< pass_type >::mutate( OffsetofExpr * node ) {
1288	MUTATE_START( node );
1289
1290	indexerScopedMutate( node->env , *this );
1291	indexerScopedMutate( node->result, *this );
1292	maybeMutateRef ( node->type , *this );
1293	maybeMutateRef ( node->member, *this );
1294
1295	MUTATE_END( Expression, node );
1296	}
1297
1298	//--------------------------------------------------------------------------
1299	// OffsetPackExpr
1300	template< typename pass_type >
1301	void PassVisitor< pass_type >::visit( OffsetPackExpr * node ) {
1302	VISIT_START( node );
1303
1304	indexerScopedAccept( node->result, *this );
1305	maybeAccept ( node->type , *this );
1306
1307	VISIT_END( node );
1308	}
1309
1310	template< typename pass_type >
1311	Expression * PassVisitor< pass_type >::mutate( OffsetPackExpr * node ) {
1312	MUTATE_START( node );
1313
1314	indexerScopedMutate( node->env , *this );
1315	indexerScopedMutate( node->result, *this );
1316	maybeMutateRef ( node->type , *this );
1317
1318	MUTATE_END( Expression, node );
1319	}
1320
1321	//--------------------------------------------------------------------------
1322	// AttrExpr
1323	template< typename pass_type >
1324	void PassVisitor< pass_type >::visit( AttrExpr * node ) {
1325	VISIT_START( node );
1326
1327	indexerScopedAccept( node->result, *this );
1328	if ( node->get_isType() ) {
1329	maybeAccept( node->type, *this );
1330	} else {
1331	maybeAccept( node->expr, *this );
1332	}
1333
1334	VISIT_END( node );
1335	}
1336
1337	template< typename pass_type >
1338	Expression * PassVisitor< pass_type >::mutate( AttrExpr * node ) {
1339	MUTATE_START( node );
1340
1341	indexerScopedMutate( node->env , *this );
1342	indexerScopedMutate( node->result, *this );
1343	if ( node->get_isType() ) {
1344	maybeMutateRef( node->type, *this );
1345	} else {
1346	maybeMutateRef( node->expr, *this );
1347	}
1348
1349	MUTATE_END( Expression, node );
1350	}
1351
1352	//--------------------------------------------------------------------------
1353	// LogicalExpr
1354	template< typename pass_type >
1355	void PassVisitor< pass_type >::visit( LogicalExpr * node ) {
1356	VISIT_START( node );
1357
1358	indexerScopedAccept( node->result, *this );
1359	maybeAccept ( node->arg1 , *this );
1360	maybeAccept ( node->arg2 , *this );
1361
1362	VISIT_END( node );
1363	}
1364
1365	template< typename pass_type >
1366	Expression * PassVisitor< pass_type >::mutate( LogicalExpr * node ) {
1367	MUTATE_START( node );
1368
1369	indexerScopedMutate( node->env , *this );
1370	indexerScopedMutate( node->result, *this );
1371	maybeMutateRef ( node->arg1 , *this );
1372	maybeMutateRef ( node->arg2 , *this );
1373
1374	MUTATE_END( Expression, node );
1375	}
1376
1377	//--------------------------------------------------------------------------
1378	// ConditionalExpr
1379	template< typename pass_type >
1380	void PassVisitor< pass_type >::visit( ConditionalExpr * node ) {
1381	VISIT_START( node );
1382
1383	indexerScopedAccept( node->result, *this );
1384	maybeAccept ( node->arg1 , *this );
1385	maybeAccept ( node->arg2 , *this );
1386	maybeAccept ( node->arg3 , *this );
1387
1388	VISIT_END( node );
1389	}
1390
1391	template< typename pass_type >
1392	Expression * PassVisitor< pass_type >::mutate( ConditionalExpr * node ) {
1393	MUTATE_START( node );
1394
1395	indexerScopedMutate( node->env , *this );
1396	indexerScopedMutate( node->result, *this );
1397	maybeMutateRef ( node->arg1 , *this );
1398	maybeMutateRef ( node->arg2 , *this );
1399	maybeMutateRef ( node->arg3 , *this );
1400
1401	MUTATE_END( Expression, node );
1402	}
1403
1404	//--------------------------------------------------------------------------
1405	// CommaExpr
1406	template< typename pass_type >
1407	void PassVisitor< pass_type >::visit( CommaExpr * node ) {
1408	VISIT_START( node );
1409
1410	indexerScopedAccept( node->result, *this );
1411	maybeAccept ( node->arg1 , *this );
1412	maybeAccept ( node->arg2 , *this );
1413
1414	VISIT_END( node );
1415	}
1416
1417	template< typename pass_type >
1418	Expression * PassVisitor< pass_type >::mutate( CommaExpr * node ) {
1419	MUTATE_START( node );
1420
1421	indexerScopedMutate( node->env , *this );
1422	indexerScopedMutate( node->result, *this );
1423	maybeMutateRef ( node->arg1 , *this );
1424	maybeMutateRef ( node->arg2 , *this );
1425
1426	MUTATE_END( Expression, node );
1427	}
1428
1429	//--------------------------------------------------------------------------
1430	// TypeExpr
1431	template< typename pass_type >
1432	void PassVisitor< pass_type >::visit( TypeExpr * node ) {
1433	VISIT_START( node );
1434
1435	indexerScopedAccept( node->result, *this );
1436	maybeAccept ( node->type, *this );
1437
1438	VISIT_END( node );
1439	}
1440
1441	template< typename pass_type >
1442	Expression * PassVisitor< pass_type >::mutate( TypeExpr * node ) {
1443	MUTATE_START( node );
1444
1445	indexerScopedMutate( node->env , *this );
1446	indexerScopedMutate( node->result, *this );
1447	maybeMutateRef ( node->type , *this );
1448
1449	MUTATE_END( Expression, node );
1450	}
1451
1452	//--------------------------------------------------------------------------
1453	// AsmExpr
1454	template< typename pass_type >
1455	void PassVisitor< pass_type >::visit( AsmExpr * node ) {
1456	VISIT_START( node );
1457
1458	indexerScopedAccept( node->result , *this );
1459	maybeAccept ( node->inout , *this );
1460	maybeAccept ( node->constraint, *this );
1461	maybeAccept ( node->operand , *this );
1462
1463	VISIT_END( node );
1464	}
1465
1466	template< typename pass_type >
1467	Expression * PassVisitor< pass_type >::mutate( AsmExpr * node ) {
1468	MUTATE_START( node );
1469
1470	indexerScopedMutate( node->env , *this );
1471	indexerScopedMutate( node->result , *this );
1472	maybeMutateRef ( node->inout , *this );
1473	maybeMutateRef ( node->constraint, *this );
1474	maybeMutateRef ( node->operand , *this );
1475
1476	MUTATE_END( Expression, node );
1477	}
1478
1479	//--------------------------------------------------------------------------
1480	// ImplicitCopyCtorExpr
1481	template< typename pass_type >
1482	void PassVisitor< pass_type >::visit( ImplicitCopyCtorExpr * node ) {
1483	VISIT_START( node );
1484
1485	indexerScopedAccept( node->result , *this );
1486	maybeAccept ( node->callExpr , *this );
1487	maybeAccept ( node->tempDecls , *this );
1488	maybeAccept ( node->returnDecls, *this );
1489	maybeAccept ( node->dtors , *this );
1490
1491	VISIT_END( node );
1492	}
1493
1494	template< typename pass_type >
1495	Expression * PassVisitor< pass_type >::mutate( ImplicitCopyCtorExpr * node ) {
1496	MUTATE_START( node );
1497
1498	indexerScopedMutate( node->env , *this );
1499	indexerScopedMutate( node->result , *this );
1500	maybeMutateRef ( node->callExpr , *this );
1501	maybeMutateRef ( node->tempDecls , *this );
1502	maybeMutateRef ( node->returnDecls, *this );
1503	maybeMutateRef ( node->dtors , *this );
1504
1505	MUTATE_END( Expression, node );
1506	}
1507
1508	//--------------------------------------------------------------------------
1509	// ConstructorExpr
1510	template< typename pass_type >
1511	void PassVisitor< pass_type >::visit( ConstructorExpr * node ) {
1512	VISIT_START( node );
1513
1514	indexerScopedAccept( node->result , *this );
1515	maybeAccept ( node->callExpr, *this );
1516
1517	VISIT_END( node );
1518	}
1519
1520	template< typename pass_type >
1521	Expression * PassVisitor< pass_type >::mutate( ConstructorExpr * node ) {
1522	MUTATE_START( node );
1523
1524	indexerScopedMutate( node->env , *this );
1525	indexerScopedMutate( node->result , *this );
1526	maybeMutateRef ( node->callExpr, *this );
1527
1528	MUTATE_END( Expression, node );
1529	}
1530
1531	//--------------------------------------------------------------------------
1532	// CompoundLiteralExpr
1533	template< typename pass_type >
1534	void PassVisitor< pass_type >::visit( CompoundLiteralExpr * node ) {
1535	VISIT_START( node );
1536
1537	indexerScopedAccept( node->result , *this );
1538	maybeAccept ( node->initializer, *this );
1539
1540	VISIT_END( node );
1541	}
1542
1543	template< typename pass_type >
1544	Expression * PassVisitor< pass_type >::mutate( CompoundLiteralExpr * node ) {
1545	MUTATE_START( node );
1546
1547	indexerScopedMutate( node->env , *this );
1548	indexerScopedMutate( node->result , *this );
1549	maybeMutateRef ( node->initializer, *this );
1550
1551	MUTATE_END( Expression, node );
1552	}
1553
1554	//--------------------------------------------------------------------------
1555	// RangeExpr
1556	template< typename pass_type >
1557	void PassVisitor< pass_type >::visit( RangeExpr * node ) {
1558	VISIT_START( node );
1559
1560	indexerScopedAccept( node->result, *this );
1561	maybeAccept ( node->low , *this );
1562	maybeAccept ( node->high , *this );
1563
1564	VISIT_END( node );
1565	}
1566
1567	template< typename pass_type >
1568	Expression * PassVisitor< pass_type >::mutate( RangeExpr * node ) {
1569	MUTATE_START( node );
1570
1571	indexerScopedMutate( node->env , *this );
1572	indexerScopedMutate( node->result, *this );
1573	maybeMutateRef ( node->low , *this );
1574	maybeMutateRef ( node->high , *this );
1575
1576	MUTATE_END( Expression, node );
1577	}
1578
1579	//--------------------------------------------------------------------------
1580	// UntypedTupleExpr
1581	template< typename pass_type >
1582	void PassVisitor< pass_type >::visit( UntypedTupleExpr * node ) {
1583	VISIT_START( node );
1584
1585	indexerScopedAccept( node->result, *this );
1586	maybeAccept ( node->exprs , *this );
1587
1588	VISIT_END( node );
1589	}
1590
1591	template< typename pass_type >
1592	Expression * PassVisitor< pass_type >::mutate( UntypedTupleExpr * node ) {
1593	MUTATE_START( node );
1594
1595	indexerScopedMutate( node->env , *this );
1596	indexerScopedMutate( node->result, *this );
1597	maybeMutateRef ( node->exprs , *this );
1598
1599	MUTATE_END( Expression, node );
1600	}
1601
1602	//--------------------------------------------------------------------------
1603	// TupleExpr
1604	template< typename pass_type >
1605	void PassVisitor< pass_type >::visit( TupleExpr * node ) {
1606	VISIT_START( node );
1607
1608	indexerScopedAccept( node->result, *this );
1609	maybeAccept ( node->exprs , *this );
1610
1611	VISIT_END( node );
1612	}
1613
1614	template< typename pass_type >
1615	Expression * PassVisitor< pass_type >::mutate( TupleExpr * node ) {
1616	MUTATE_START( node );
1617
1618	indexerScopedMutate( node->env , *this );
1619	indexerScopedMutate( node->result, *this );
1620	maybeMutateRef ( node->exprs , *this );
1621
1622	MUTATE_END( Expression, node );
1623	}
1624
1625	//--------------------------------------------------------------------------
1626	// TupleIndexExpr
1627	template< typename pass_type >
1628	void PassVisitor< pass_type >::visit( TupleIndexExpr * node ) {
1629	VISIT_START( node );
1630
1631	indexerScopedAccept( node->result, *this );
1632	maybeAccept ( node->tuple , *this );
1633
1634	VISIT_END( node );
1635	}
1636
1637	template< typename pass_type >
1638	Expression * PassVisitor< pass_type >::mutate( TupleIndexExpr * node ) {
1639	MUTATE_START( node );
1640
1641	indexerScopedMutate( node->env , *this );
1642	indexerScopedMutate( node->result, *this );
1643	maybeMutateRef ( node->tuple , *this );
1644
1645	MUTATE_END( Expression, node );
1646	}
1647
1648	//--------------------------------------------------------------------------
1649	// TupleAssignExpr
1650	template< typename pass_type >
1651	void PassVisitor< pass_type >::visit( TupleAssignExpr * node ) {
1652	VISIT_START( node );
1653
1654	indexerScopedAccept( node->result , *this );
1655	maybeAccept ( node->stmtExpr, *this );
1656
1657	VISIT_END( node );
1658	}
1659
1660	template< typename pass_type >
1661	Expression * PassVisitor< pass_type >::mutate( TupleAssignExpr * node ) {
1662	MUTATE_START( node );
1663
1664	indexerScopedMutate( node->env , *this );
1665	indexerScopedMutate( node->result , *this );
1666	maybeMutateRef ( node->stmtExpr, *this );
1667
1668	MUTATE_END( Expression, node );
1669	}
1670
1671	//--------------------------------------------------------------------------
1672	// StmtExpr
1673	template< typename pass_type >
1674	void PassVisitor< pass_type >::visit( StmtExpr * node ) {
1675	VISIT_START( node );
1676
1677	// don't want statements from outer CompoundStmts to be added to this StmtExpr
1678	ValueGuardPtr< TypeSubstitution * > oldEnv ( get_env_ptr() );
1679	ValueGuardPtr< std::list< Statement* > > oldBeforeStmts( get_beforeStmts() );
1680	ValueGuardPtr< std::list< Statement* > > oldAfterStmts ( get_afterStmts () );
1681
1682	indexerScopedAccept( node->result , *this );
1683	maybeAccept ( node->statements , *this );
1684	maybeAccept ( node->returnDecls, *this );
1685	maybeAccept ( node->dtors , *this );
1686
1687	VISIT_END( node );
1688	}
1689
1690	template< typename pass_type >
1691	Expression * PassVisitor< pass_type >::mutate( StmtExpr * node ) {
1692	MUTATE_START( node );
1693
1694	// don't want statements from outer CompoundStmts to be added to this StmtExpr
1695	ValueGuardPtr< TypeSubstitution * > oldEnv ( get_env_ptr() );
1696	ValueGuardPtr< std::list< Statement* > > oldBeforeStmts( get_beforeStmts() );
1697	ValueGuardPtr< std::list< Statement* > > oldAfterStmts ( get_afterStmts () );
1698
1699	indexerScopedMutate( node->result , *this );
1700	maybeMutateRef ( node->statements , *this );
1701	maybeMutateRef ( node->returnDecls, *this );
1702	maybeMutateRef ( node->dtors , *this );
1703
1704	MUTATE_END( Expression, node );
1705	}
1706
1707	//--------------------------------------------------------------------------
1708	// UniqueExpr
1709	template< typename pass_type >
1710	void PassVisitor< pass_type >::visit( UniqueExpr * node ) {
1711	VISIT_START( node );
1712
1713	indexerScopedAccept( node->result, *this );
1714	maybeAccept ( node->expr , *this );
1715
1716	VISIT_END( node );
1717	}
1718
1719	template< typename pass_type >
1720	Expression * PassVisitor< pass_type >::mutate( UniqueExpr * node ) {
1721	MUTATE_START( node );
1722
1723	indexerScopedMutate( node->env , *this );
1724	indexerScopedMutate( node->result, *this );
1725	maybeMutateRef ( node->expr , *this );
1726
1727	MUTATE_END( Expression, node );
1728	}
1729
1730	template< typename pass_type >
1731	void PassVisitor< pass_type >::visit( VoidType * node ) {
1732	VISIT_BODY( node );
1733	}
1734
1735	template< typename pass_type >
1736	void PassVisitor< pass_type >::visit( BasicType * node ) {
1737	VISIT_BODY( node );
1738	}
1739
1740	template< typename pass_type >
1741	void PassVisitor< pass_type >::visit( PointerType * node ) {
1742	VISIT_BODY( node );
1743	}
1744
1745	template< typename pass_type >
1746	void PassVisitor< pass_type >::visit( ArrayType * node ) {
1747	VISIT_BODY( node );
1748	}
1749
1750	template< typename pass_type >
1751	void PassVisitor< pass_type >::visit( ReferenceType * node ) {
1752	VISIT_BODY( node );
1753	}
1754
1755	template< typename pass_type >
1756	void PassVisitor< pass_type >::visit( FunctionType * node ) {
1757	VISIT_BODY( node );
1758	}
1759
1760	//--------------------------------------------------------------------------
1761	// StructInstType
1762	template< typename pass_type >
1763	void PassVisitor< pass_type >::visit( StructInstType * node ) {
1764	VISIT_START( node );
1765
1766	indexerAddStruct( node->name );
1767
1768	{
1769	auto guard = makeFuncGuard( [this]() { indexerScopeEnter(); }, [this]() { indexerScopeLeave(); } );
1770	maybeAccept( node->forall , *this );
1771	maybeAccept( node->parameters, *this );
1772	}
1773
1774	VISIT_END( node );
1775	}
1776
1777	template< typename pass_type >
1778	Type * PassVisitor< pass_type >::mutate( StructInstType * node ) {
1779	MUTATE_START( node );
1780
1781	indexerAddStruct( node->name );
1782
1783	{
1784	auto guard = makeFuncGuard( [this]() { indexerScopeEnter(); }, [this]() { indexerScopeLeave(); } );
1785	maybeMutateRef( node->forall , *this );
1786	maybeMutateRef( node->parameters, *this );
1787	}
1788
1789	MUTATE_END( Type, node );
1790	}
1791
1792	//--------------------------------------------------------------------------
1793	// UnionInstType
1794	template< typename pass_type >
1795	void PassVisitor< pass_type >::visit( UnionInstType * node ) {
1796	VISIT_START( node );
1797
1798	indexerAddStruct( node->name );
1799
1800	{
1801	auto guard = makeFuncGuard( [this]() { indexerScopeEnter(); }, [this]() { indexerScopeLeave(); } );
1802	maybeAccept( node->forall , *this );
1803	maybeAccept( node->parameters, *this );
1804	}
1805
1806	VISIT_END( node );
1807	}
1808
1809	template< typename pass_type >
1810	Type * PassVisitor< pass_type >::mutate( UnionInstType * node ) {
1811	MUTATE_START( node );
1812
1813	indexerAddStruct( node->name );
1814
1815	{
1816	auto guard = makeFuncGuard( [this]() { indexerScopeEnter(); }, [this]() { indexerScopeLeave(); } );
1817	maybeMutateRef( node->forall , *this );
1818	maybeMutateRef( node->parameters, *this );
1819	}
1820
1821	MUTATE_END( Type, node );
1822	}
1823
1824	//--------------------------------------------------------------------------
1825	// EnumInstType
1826	template< typename pass_type >
1827	void PassVisitor< pass_type >::visit( EnumInstType * node ) {
1828	VISIT_BODY( node );
1829	}
1830
1831	template< typename pass_type >
1832	Type * PassVisitor< pass_type >::mutate( EnumInstType * node ) {
1833	MUTATE_BODY( Type, node );
1834	}
1835
1836	//--------------------------------------------------------------------------
1837	// TraitInstType
1838	template< typename pass_type >
1839	void PassVisitor< pass_type >::visit( TraitInstType * node ) {
1840	VISIT_START( node );
1841
1842	maybeAccept( node->forall , *this );
1843	maybeAccept( node->parameters, *this );
1844
1845	VISIT_END( node );
1846	}
1847
1848	template< typename pass_type >
1849	Type * PassVisitor< pass_type >::mutate( TraitInstType * node ) {
1850	MUTATE_START( node );
1851
1852	maybeMutateRef( node->forall , *this );
1853	maybeMutateRef( node->parameters, *this );
1854
1855	MUTATE_END( Type, node );
1856	}
1857
1858	//--------------------------------------------------------------------------
1859	// TypeInstType
1860	template< typename pass_type >
1861	void PassVisitor< pass_type >::visit( TypeInstType * node ) {
1862	VISIT_BODY( node );
1863	}
1864
1865	template< typename pass_type >
1866	void PassVisitor< pass_type >::visit( TupleType * node ) {
1867	VISIT_BODY( node );
1868	}
1869
1870	template< typename pass_type >
1871	void PassVisitor< pass_type >::visit( TypeofType * node ) {
1872	VISIT_BODY( node );
1873	}
1874
1875	template< typename pass_type >
1876	void PassVisitor< pass_type >::visit( AttrType * node ) {
1877	VISIT_BODY( node );
1878	}
1879
1880	template< typename pass_type >
1881	void PassVisitor< pass_type >::visit( VarArgsType * node ) {
1882	VISIT_BODY( node );
1883	}
1884
1885	template< typename pass_type >
1886	void PassVisitor< pass_type >::visit( ZeroType * node ) {
1887	VISIT_BODY( node );
1888	}
1889
1890	template< typename pass_type >
1891	void PassVisitor< pass_type >::visit( OneType * node ) {
1892	VISIT_BODY( node );
1893	}
1894
1895	//--------------------------------------------------------------------------
1896	// SingleInit
1897	template< typename pass_type >
1898	void PassVisitor< pass_type >::visit( SingleInit * node ) {
1899	VISIT_START( node );
1900
1901	visitExpression( node->get_value() );
1902
1903	VISIT_END( node );
1904	}
1905
1906	template< typename pass_type >
1907	Initializer * PassVisitor< pass_type >::mutate( SingleInit * node ) {
1908	MUTATE_START( node );
1909
1910	node->set_value( mutateExpression( node->get_value() ) );
1911
1912	MUTATE_END( Initializer, node );
1913	}
1914
1915	template< typename pass_type >
1916	void PassVisitor< pass_type >::visit( ListInit * node ) {
1917	VISIT_BODY( node );
1918	}
1919
1920	template< typename pass_type >
1921	void PassVisitor< pass_type >::visit( ConstructorInit * node ) {
1922	VISIT_BODY( node );
1923	}
1924
1925	template< typename pass_type >
1926	void PassVisitor< pass_type >::visit( Subrange * node ) {
1927	VISIT_BODY( node );
1928	}
1929
1930	template< typename pass_type >
1931	void PassVisitor< pass_type >::visit( Constant * node ) {
1932	VISIT_BODY( node );
1933	}
1934
1935	//---------------------------------------------------------------------------------------------------------------
1936	template< typename pass_type >
1937	Type * PassVisitor< pass_type >::mutate( VoidType * node ) {
1938	MUTATE_BODY( Type, node );
1939	}
1940
1941	template< typename pass_type >
1942	Type * PassVisitor< pass_type >::mutate( BasicType * node ) {
1943	MUTATE_BODY( Type, node );
1944	}
1945
1946	template< typename pass_type >
1947	Type * PassVisitor< pass_type >::mutate( PointerType * node ) {
1948	MUTATE_BODY( Type, node );
1949	}
1950
1951	template< typename pass_type >
1952	Type * PassVisitor< pass_type >::mutate( ArrayType * node ) {
1953	MUTATE_BODY( Type, node );
1954	}
1955
1956	template< typename pass_type >
1957	Type * PassVisitor< pass_type >::mutate( ReferenceType * node ) {
1958	MUTATE_BODY( Type, node );
1959	}
1960
1961	template< typename pass_type >
1962	Type * PassVisitor< pass_type >::mutate( FunctionType * node ) {
1963	MUTATE_BODY( Type, node );
1964	}
1965
1966	template< typename pass_type >
1967	Type * PassVisitor< pass_type >::mutate( TypeInstType * node ) {
1968	MUTATE_BODY( Type, node );
1969	}
1970
1971	template< typename pass_type >
1972	Type * PassVisitor< pass_type >::mutate( TupleType * node ) {
1973	MUTATE_BODY( Type, node );
1974	}
1975
1976	template< typename pass_type >
1977	Type * PassVisitor< pass_type >::mutate( TypeofType * node ) {
1978	MUTATE_BODY( Type, node );
1979	}
1980
1981	template< typename pass_type >
1982	Type * PassVisitor< pass_type >::mutate( AttrType * node ) {
1983	MUTATE_BODY( Type, node );
1984	}
1985
1986	template< typename pass_type >
1987	Type * PassVisitor< pass_type >::mutate( VarArgsType * node ) {
1988	MUTATE_BODY( Type, node );
1989	}
1990
1991	template< typename pass_type >
1992	Type * PassVisitor< pass_type >::mutate( ZeroType * node ) {
1993	MUTATE_BODY( Type, node );
1994	}
1995
1996	template< typename pass_type >
1997	Type * PassVisitor< pass_type >::mutate( OneType * node ) {
1998	MUTATE_BODY( Type, node );
1999	}
2000
2001	template< typename pass_type >
2002	Initializer * PassVisitor< pass_type >::mutate( ListInit * node ) {
2003	MUTATE_BODY( Initializer, node );
2004	}
2005
2006	template< typename pass_type >
2007	Initializer * PassVisitor< pass_type >::mutate( ConstructorInit * node ) {
2008	MUTATE_BODY( Initializer, node );
2009	}
2010
2011	template< typename pass_type >
2012	Subrange * PassVisitor< pass_type >::mutate( Subrange * node ) {
2013	MUTATE_BODY( Subrange, node );
2014	}
2015
2016	template< typename pass_type >
2017	Constant * PassVisitor< pass_type >::mutate( Constant * node ) {
2018	MUTATE_BODY( Constant, node );
2019	}

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