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source: src/AST/Pass.impl.hpp @ e542b02

Last change on this file since e542b02 was 7a780ad, checked in by Andrew Beach <ajbeach@…>, 7 months ago
Moved ast::BasicType::Kind to ast::BasicKind? in its own hearder. This is more consistent with other utility enums (although we still use this as a enum class) and reduces what some files need to include. Also did a upgrade in a comment with MAX_INTEGER_TYPE, it is now part of the enum.
Property mode set to `100644`
File size: 62.7 KB

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1	//
2	// Cforall Version 1.0.0 Copyright (C) 2019 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	// ast::Pass.impl.hpp --
8	//
9	// Author : Thierry Delisle
10	// Created On : Thu May 09 15::37::05 2019
11	// Last Modified By :
12	// Last Modified On :
13	// Update Count :
14	//
15
16	#pragma once
17	// IWYU pragma: private, include "AST/Pass.hpp"
18
19	#include <type_traits>
20	#include <unordered_map>
21
22	#include "AST/Copy.hpp"
23	#include "AST/TranslationUnit.hpp"
24	#include "AST/TypeSubstitution.hpp"
25
26	#define VISIT_START( node ) \
27	using namespace ast; \
28	/* back-up the last known code location */ \
29	__attribute__((unused)) auto loc_guard = ast::__pass::make_location_guard( core, node, 0 ); \
30	/* back-up the visit children */ \
31	__attribute__((unused)) ast::__pass::visit_children_guard guard1( ast::__pass::visit_children(core, 0) ); \
32	/* setup the scope for passes that want to run code at exit */ \
33	__attribute__((unused)) ast::__pass::guard_value guard2( ast::__pass::at_cleanup (core, 0) ); \
34	/* begin tracing memory allocation if requested by this pass */ \
35	__pass::beginTrace( core, 0 ); \
36	/* call the implementation of the previsit of this pass */ \
37	__pass::previsit( core, node, 0 );
38
39	#define VISIT_END( type, node ) \
40	/* call the implementation of the postvisit of this pass */ \
41	auto __return = __pass::postvisit( core, node, 0 ); \
42	assertf(__return, "post visit should never return null"); \
43	/* end tracing memory allocation if requested by this pass */ \
44	__pass::endTrace( core, 0 ); \
45	return __return;
46
47	#ifdef PEDANTIC_PASS_ASSERT
48	#define __pedantic_pass_assert(...) assert(__VA_ARGS__)
49	#define __pedantic_pass_assertf(...) assertf(__VA_ARGS__)
50	#else
51	#define __pedantic_pass_assert(...)
52	#define __pedantic_pass_assertf(...)
53	#endif
54
55	namespace ast::__pass {
56	// Check if this is either a null pointer or a pointer to an empty container
57	template<typename T>
58	static inline bool empty( T * ptr ) {
59	return !ptr \|\| ptr->empty();
60	}
61
62	template< typename core_t, typename node_t >
63	static inline node_t* mutate(const node_t *node) {
64	return std::is_base_of<PureVisitor, core_t>::value ? ::ast::shallowCopy(node) : ::ast::mutate(node);
65	}
66
67	//------------------------------
68	template<typename it_t, template <class...> class container_t>
69	static inline void take_all( it_t it, container_t<ast::ptr<ast::Decl>> * decls, bool * mutated = nullptr ) {
70	if ( empty( decls ) ) return;
71
72	std::transform(decls->begin(), decls->end(), it, [](const ast::Decl * decl) -> auto {
73	return new DeclStmt( decl->location, decl );
74	});
75	decls->clear();
76	if ( mutated ) *mutated = true;
77	}
78
79	template<typename it_t, template <class...> class container_t>
80	static inline void take_all( it_t it, container_t<ast::ptr<ast::Stmt>> * stmts, bool * mutated = nullptr ) {
81	if ( empty( stmts ) ) return;
82
83	std::move(stmts->begin(), stmts->end(), it);
84	stmts->clear();
85	if ( mutated ) *mutated = true;
86	}
87
88	//------------------------------
89	/// Check if should be skipped, different for pointers and containers
90	template<typename node_t>
91	bool skip( const ast::ptr<node_t> & val ) {
92	return !val;
93	}
94
95	template< template <class...> class container_t, typename node_t >
96	bool skip( const container_t<ast::ptr< node_t >> & val ) {
97	return val.empty();
98	}
99
100	//------------------------------
101	/// Get the value to visit, different for pointers and containers
102	template<typename node_t>
103	auto get( const ast::ptr<node_t> & val, int ) -> decltype(val.get()) {
104	return val.get();
105	}
106
107	template<typename node_t>
108	const node_t & get( const node_t & val, long ) {
109	return val;
110	}
111	}
112
113	template< typename core_t >
114	template< typename node_t >
115	auto ast::Pass< core_t >::call_accept( const node_t * node ) ->
116	ast::Pass< core_t >::call_accept_result_t<node_t> {
117	__pedantic_pass_assert( __visit_children() );
118	__pedantic_pass_assert( node );
119
120	auto nval = node->accept( *this );
121	return { nval != node, nval };
122	}
123
124	template< typename core_t >
125	ast::__pass::template result1<ast::Expr> ast::Pass< core_t >::call_accept_top( const ast::Expr * expr ) {
126	__pedantic_pass_assert( __visit_children() );
127	__pedantic_pass_assert( expr );
128
129	const ast::TypeSubstitution ** typeSubs_ptr = __pass::typeSubs( core, 0 );
130	if ( typeSubs_ptr && expr->env ) {
131	*typeSubs_ptr = expr->env;
132	}
133
134	auto nval = expr->accept( *this );
135	return { nval != expr, nval };
136	}
137
138	template< typename core_t >
139	ast::__pass::template result1<ast::Stmt> ast::Pass< core_t >::call_accept_as_compound( const ast::Stmt * stmt ) {
140	__pedantic_pass_assert( __visit_children() );
141	__pedantic_pass_assert( stmt );
142
143	// add a few useful symbols to the scope
144	using __pass::empty;
145
146	// get the stmts/decls that will need to be spliced in
147	auto stmts_before = __pass::stmtsToAddBefore( core, 0 );
148	auto stmts_after = __pass::stmtsToAddAfter ( core, 0 );
149	auto decls_before = __pass::declsToAddBefore( core, 0 );
150	auto decls_after = __pass::declsToAddAfter ( core, 0 );
151
152	// These may be modified by subnode but most be restored once we exit this statemnet.
153	ValueGuardPtr< const ast::TypeSubstitution * > __old_env ( __pass::typeSubs( core, 0 ) );
154	ValueGuardPtr< typename std::remove_pointer< decltype(stmts_before) >::type > __old_decls_before( stmts_before );
155	ValueGuardPtr< typename std::remove_pointer< decltype(stmts_after ) >::type > __old_decls_after ( stmts_after );
156	ValueGuardPtr< typename std::remove_pointer< decltype(decls_before) >::type > __old_stmts_before( decls_before );
157	ValueGuardPtr< typename std::remove_pointer< decltype(decls_after ) >::type > __old_stmts_after ( decls_after );
158
159	// Now is the time to actually visit the node
160	const ast::Stmt * nstmt = stmt->accept( *this );
161
162	// If the pass doesn't want to add anything then we are done
163	if ( empty(stmts_before) && empty(stmts_after) && empty(decls_before) && empty(decls_after) ) {
164	return { nstmt != stmt, nstmt };
165	}
166
167	// Make sure that it is either adding statements or declartions but not both
168	// this is because otherwise the order would be awkward to predict
169	assert(( empty( stmts_before ) && empty( stmts_after ))
170	\|\| ( empty( decls_before ) && empty( decls_after )) );
171
172	// Create a new Compound Statement to hold the new decls/stmts
173	ast::CompoundStmt * compound = new ast::CompoundStmt( stmt->location );
174
175	// Take all the declarations that go before
176	__pass::take_all( std::back_inserter( compound->kids ), decls_before );
177	__pass::take_all( std::back_inserter( compound->kids ), stmts_before );
178
179	// Insert the original declaration
180	compound->kids.emplace_back( nstmt );
181
182	// Insert all the declarations that go before
183	__pass::take_all( std::back_inserter( compound->kids ), decls_after );
184	__pass::take_all( std::back_inserter( compound->kids ), stmts_after );
185
186	return { true, compound };
187	}
188
189	template< typename core_t >
190	template< template <class...> class container_t >
191	ast::__pass::template resultNstmt<container_t> ast::Pass< core_t >::call_accept( const container_t< ptr<Stmt> > & statements ) {
192	__pedantic_pass_assert( __visit_children() );
193	__pedantic_pass_assert( !statements.empty() );
194
195	// We are going to aggregate errors for all these statements
196	SemanticErrorException errors;
197
198	// add a few useful symbols to the scope
199	using __pass::empty;
200
201	// get the stmts/decls that will need to be spliced in
202	auto stmts_before = __pass::stmtsToAddBefore( core, 0 );
203	auto stmts_after = __pass::stmtsToAddAfter ( core, 0 );
204	auto decls_before = __pass::declsToAddBefore( core, 0 );
205	auto decls_after = __pass::declsToAddAfter ( core, 0 );
206
207	// These may be modified by subnode but most be restored once we exit this statemnet.
208	ValueGuardPtr< typename std::remove_pointer< decltype(stmts_before) >::type > __old_decls_before( stmts_before );
209	ValueGuardPtr< typename std::remove_pointer< decltype(stmts_after ) >::type > __old_decls_after ( stmts_after );
210	ValueGuardPtr< typename std::remove_pointer< decltype(decls_before) >::type > __old_stmts_before( decls_before );
211	ValueGuardPtr< typename std::remove_pointer< decltype(decls_after ) >::type > __old_stmts_after ( decls_after );
212
213	// update pass statitistics
214	pass_visitor_stats.depth++;
215	pass_visitor_stats.max->push(pass_visitor_stats.depth);
216	pass_visitor_stats.avg->push(pass_visitor_stats.depth);
217
218	__pass::resultNstmt<container_t> new_kids;
219	for ( auto value : enumerate( statements ) ) {
220	try {
221	size_t i = value.idx;
222	const Stmt * stmt = value.val;
223	__pedantic_pass_assert( stmt );
224	const ast::Stmt * new_stmt = stmt->accept( *this );
225	assert( new_stmt );
226
227	// Make sure that it is either adding statements or declartions but not both
228	// this is because otherwise the order would be awkward to predict
229	assert(( empty( stmts_before ) && empty( stmts_after ))
230	\|\| ( empty( decls_before ) && empty( decls_after )) );
231
232	// Take all the statements which should have gone after, N/A for first iteration
233	new_kids.take_all( decls_before );
234	new_kids.take_all( stmts_before );
235
236	// Now add the statement if there is one
237	if ( new_stmt != stmt ) {
238	new_kids.differs = true;
239	new_kids.values.emplace_back( new_stmt );
240	} else {
241	new_kids.values.emplace_back( i );
242	}
243
244	// Take all the declarations that go before
245	new_kids.take_all( decls_after );
246	new_kids.take_all( stmts_after );
247	} catch ( SemanticErrorException &e ) {
248	errors.append( e );
249	}
250	}
251	pass_visitor_stats.depth--;
252	if ( !errors.isEmpty() ) { throw errors; }
253
254	return new_kids;
255	}
256
257	template< typename core_t >
258	template< template <class...> class container_t, typename node_t >
259	ast::__pass::template resultN<container_t, node_t> ast::Pass< core_t >::call_accept( const container_t< ast::ptr<node_t> > & container ) {
260	__pedantic_pass_assert( __visit_children() );
261	__pedantic_pass_assert( !container.empty() );
262
263	// Collect errors from processing all these nodes.
264	SemanticErrorException errors;
265
266	pass_visitor_stats.depth++;
267	pass_visitor_stats.max->push(pass_visitor_stats.depth);
268	pass_visitor_stats.avg->push(pass_visitor_stats.depth);
269
270	bool mutated = false;
271	container_t<ptr<node_t>> new_kids;
272	for ( const node_t * node : container ) {
273	try {
274	__pedantic_pass_assert( node );
275	const node_t * new_stmt = strict_dynamic_cast< const node_t * >( node->accept( *this ) );
276	if ( new_stmt != node ) {
277	mutated = true;
278	new_kids.emplace_back( new_stmt );
279	} else {
280	new_kids.emplace_back( nullptr );
281	}
282	} catch ( SemanticErrorException &e ) {
283	errors.append( e );
284	}
285	}
286
287	__pedantic_pass_assert( new_kids.size() == container.size() );
288	pass_visitor_stats.depth--;
289	if ( !errors.isEmpty() ) { throw errors; }
290
291	return ast::__pass::resultN<container_t, node_t>{ mutated, new_kids };
292	}
293
294	template< typename core_t >
295	template<typename node_t, typename super_t, typename field_t>
296	void ast::Pass< core_t >::maybe_accept(
297	const node_t * & parent,
298	field_t super_t::*field
299	) {
300	static_assert( std::is_base_of<super_t, node_t>::value, "Error deducing member object" );
301
302	if ( __pass::skip( parent->*field ) ) return;
303	const auto & old_val = __pass::get(parent->*field, 0);
304
305	static_assert( !std::is_same<const ast::Node * &, decltype(old_val)>::value, "ERROR" );
306
307	auto result = call_accept( old_val );
308	if ( result.differs ) {
309	auto new_parent = __pass::mutate<core_t>(parent);
310	result.apply( new_parent, field );
311	parent = new_parent;
312	}
313	}
314
315	template< typename core_t >
316	template<typename node_t, typename super_t, typename field_t>
317	void ast::Pass< core_t >::maybe_accept_top(
318	const node_t * & parent,
319	field_t super_t::*field
320	) {
321	static_assert( std::is_base_of<super_t, node_t>::value, "Error deducing member object" );
322
323	if ( __pass::skip( parent->*field ) ) return;
324	const auto & old_val = __pass::get(parent->*field, 0);
325
326	static_assert( !std::is_same<const ast::Node * &, decltype(old_val)>::value, "ERROR" );
327
328	auto result = call_accept_top( old_val );
329	if ( result.differs ) {
330	auto new_parent = __pass::mutate<core_t>(parent);
331	result.apply( new_parent, field );
332	parent = new_parent;
333	}
334	}
335
336	template< typename core_t >
337	template<typename node_t, typename super_t, typename field_t>
338	void ast::Pass< core_t >::maybe_accept_as_compound(
339	const node_t * & parent,
340	field_t super_t::*child
341	) {
342	static_assert( std::is_base_of<super_t, node_t>::value, "Error deducing member object" );
343
344	if ( __pass::skip( parent->*child ) ) return;
345	const auto & old_val = __pass::get(parent->*child, 0);
346
347	static_assert( !std::is_same<const ast::Node * &, decltype(old_val)>::value, "ERROR" );
348
349	auto result = call_accept_as_compound( old_val );
350	if ( result.differs ) {
351	auto new_parent = __pass::mutate<core_t>(parent);
352	result.apply( new_parent, child );
353	parent = new_parent;
354	}
355	}
356
357	//------------------------------------------------------------------------------------------------------------------------------------------------------------------------
358	//========================================================================================================================================================================
359	//========================================================================================================================================================================
360	//========================================================================================================================================================================
361	//========================================================================================================================================================================
362	//========================================================================================================================================================================
363	//------------------------------------------------------------------------------------------------------------------------------------------------------------------------
364
365	template< typename core_t >
366	inline void ast::accept_all( std::list< ast::ptr<ast::Decl> > & decls, ast::Pass< core_t > & visitor ) {
367	// We are going to aggregate errors for all these statements
368	SemanticErrorException errors;
369
370	// add a few useful symbols to the scope
371	using __pass::empty;
372
373	// get the stmts/decls that will need to be spliced in
374	auto decls_before = __pass::declsToAddBefore( visitor.core, 0);
375	auto decls_after = __pass::declsToAddAfter ( visitor.core, 0);
376
377	// update pass statitistics
378	pass_visitor_stats.depth++;
379	pass_visitor_stats.max->push(pass_visitor_stats.depth);
380	pass_visitor_stats.avg->push(pass_visitor_stats.depth);
381
382	for ( std::list< ast::ptr<ast::Decl> >::iterator i = decls.begin(); ; ++i ) {
383	// splice in new declarations after previous decl
384	if ( !empty( decls_after ) ) { decls.splice( i, *decls_after ); }
385
386	if ( i == decls.end() ) break;
387
388	try {
389	// run visitor on declaration
390	ast::ptr<ast::Decl> & node = *i;
391	assert( node );
392	node = node->accept( visitor );
393	}
394	catch( SemanticErrorException &e ) {
395	if (__pass::on_error (visitor.core, *i, 0))
396	errors.append( e );
397	}
398
399	// splice in new declarations before current decl
400	if ( !empty( decls_before ) ) { decls.splice( i, *decls_before ); }
401	}
402	pass_visitor_stats.depth--;
403	if ( !errors.isEmpty() ) { throw errors; }
404	}
405
406	template< typename core_t >
407	inline void ast::accept_all( ast::TranslationUnit & unit, ast::Pass< core_t > & visitor ) {
408	if ( auto ptr = __pass::translationUnit( visitor.core, 0 ) ) {
409	ValueGuard<const TranslationUnit > guard( ptr );
410	*ptr = &unit;
411	return ast::accept_all( unit.decls, visitor );
412	} else {
413	return ast::accept_all( unit.decls, visitor );
414	}
415	}
416
417	// A NOTE ON THE ORDER OF TRAVERSAL
418	//
419	// Types and typedefs have their base types visited before they are added to the type table. This is ok, since there is
420	// no such thing as a recursive type or typedef.
421	//
422	// typedef struct { T *x; } T; // never allowed
423	//
424	// for structs/unions, it is possible to have recursion, so the decl should be added as if it's incomplete to begin, the
425	// members are traversed, and then the complete type should be added (assuming the type is completed by this particular
426	// declaration).
427	//
428	// struct T { struct T *x; }; // allowed
429	//
430	// It is important to add the complete type to the symbol table after the members/base has been traversed, since that
431	// traversal may modify the definition of the type and these modifications should be visible when the symbol table is
432	// queried later in this pass.
433
434	//--------------------------------------------------------------------------
435	// ObjectDecl
436	template< typename core_t >
437	const ast::DeclWithType * ast::Pass< core_t >::visit( const ast::ObjectDecl * node ) {
438	VISIT_START( node );
439
440	if ( __visit_children() ) {
441	{
442	guard_symtab guard { *this };
443	maybe_accept( node, &ObjectDecl::type );
444	}
445	maybe_accept( node, &ObjectDecl::init );
446	maybe_accept( node, &ObjectDecl::bitfieldWidth );
447	maybe_accept( node, &ObjectDecl::attributes );
448	}
449
450	__pass::symtab::addId( core, 0, node );
451
452	VISIT_END( DeclWithType, node );
453	}
454
455	//--------------------------------------------------------------------------
456	// FunctionDecl
457	template< typename core_t >
458	const ast::DeclWithType * ast::Pass< core_t >::visit( const ast::FunctionDecl * node ) {
459	VISIT_START( node );
460
461	__pass::symtab::addId( core, 0, node );
462
463	if ( __visit_children() ) {
464	maybe_accept( node, &FunctionDecl::withExprs );
465	}
466	{
467	// with clause introduces a level of scope (for the with expression members).
468	// with clause exprs are added to the symbol table before parameters so that parameters
469	// shadow with exprs and not the other way around.
470	guard_symtab guard { *this };
471	__pass::symtab::addWith( core, 0, node->withExprs, node );
472	{
473	guard_symtab guard { *this };
474	// implicit add __func__ identifier as specified in the C manual 6.4.2.2
475	// This is a C name and so has C linkage.
476	static ast::ptr< ast::ObjectDecl > func{ new ast::ObjectDecl{
477	CodeLocation{}, "__func__",
478	new ast::ArrayType{
479	new ast::BasicType{ ast::BasicKind::Char, ast::CV::Const },
480	nullptr, VariableLen, DynamicDim
481	},
482	nullptr,
483	ast::Storage::Classes(),
484	ast::Linkage::C,
485	} };
486	__pass::symtab::addId( core, 0, func );
487	if ( __visit_children() ) {
488	maybe_accept( node, &FunctionDecl::type_params );
489	maybe_accept( node, &FunctionDecl::assertions );
490	maybe_accept( node, &FunctionDecl::params );
491	maybe_accept( node, &FunctionDecl::returns );
492	maybe_accept( node, &FunctionDecl::type );
493	maybe_accept( node, &FunctionDecl::attributes );
494	// First remember that we are now within a function.
495	ValueGuard< bool > oldInFunction( inFunction );
496	inFunction = true;
497	// The function body needs to have the same scope as parameters.
498	// A CompoundStmt will not enter a new scope if atFunctionTop is true.
499	ValueGuard< bool > oldAtFunctionTop( atFunctionTop );
500	atFunctionTop = true;
501	maybe_accept( node, &FunctionDecl::stmts );
502	}
503	}
504	}
505
506	VISIT_END( DeclWithType, node );
507	}
508
509	//--------------------------------------------------------------------------
510	// StructDecl
511	template< typename core_t >
512	const ast::Decl * ast::Pass< core_t >::visit( const ast::StructDecl * node ) {
513	VISIT_START( node );
514
515	// make up a forward declaration and add it before processing the members
516	// needs to be on the heap because addStruct saves the pointer
517	__pass::symtab::addStructFwd( core, 0, node );
518
519	if ( __visit_children() ) {
520	guard_symtab guard { * this };
521	maybe_accept( node, &StructDecl::params );
522	maybe_accept( node, &StructDecl::members );
523	maybe_accept( node, &StructDecl::attributes );
524	}
525
526	// this addition replaces the forward declaration
527	__pass::symtab::addStruct( core, 0, node );
528
529	VISIT_END( Decl, node );
530	}
531
532	//--------------------------------------------------------------------------
533	// UnionDecl
534	template< typename core_t >
535	const ast::Decl * ast::Pass< core_t >::visit( const ast::UnionDecl * node ) {
536	VISIT_START( node );
537
538	// make up a forward declaration and add it before processing the members
539	__pass::symtab::addUnionFwd( core, 0, node );
540
541	if ( __visit_children() ) {
542	guard_symtab guard { * this };
543	maybe_accept( node, &UnionDecl::params );
544	maybe_accept( node, &UnionDecl::members );
545	maybe_accept( node, &UnionDecl::attributes );
546	}
547
548	__pass::symtab::addUnion( core, 0, node );
549
550	VISIT_END( Decl, node );
551	}
552
553	//--------------------------------------------------------------------------
554	// EnumDecl
555	template< typename core_t >
556	const ast::Decl * ast::Pass< core_t >::visit( const ast::EnumDecl * node ) {
557	VISIT_START( node );
558
559	__pass::symtab::addEnum( core, 0, node );
560
561	if ( __visit_children() ) {
562	if ( node->hide == ast::EnumDecl::EnumHiding::Hide ) {
563	guard_symtab guard { *this };
564	maybe_accept( node, &EnumDecl::base );
565	maybe_accept( node, &EnumDecl::params );
566	maybe_accept( node, &EnumDecl::members );
567	maybe_accept( node, &EnumDecl::attributes );
568	} else {
569	maybe_accept( node, &EnumDecl::base );
570	maybe_accept( node, &EnumDecl::params );
571	maybe_accept( node, &EnumDecl::members );
572	maybe_accept( node, &EnumDecl::attributes );
573	}
574	}
575
576	VISIT_END( Decl, node );
577	}
578
579	//--------------------------------------------------------------------------
580	// TraitDecl
581	template< typename core_t >
582	const ast::Decl * ast::Pass< core_t >::visit( const ast::TraitDecl * node ) {
583	VISIT_START( node );
584
585	if ( __visit_children() ) {
586	guard_symtab guard { *this };
587	maybe_accept( node, &TraitDecl::params );
588	maybe_accept( node, &TraitDecl::members );
589	maybe_accept( node, &TraitDecl::attributes );
590	}
591
592	__pass::symtab::addTrait( core, 0, node );
593
594	VISIT_END( Decl, node );
595	}
596
597	//--------------------------------------------------------------------------
598	// TypeDecl
599	template< typename core_t >
600	const ast::Decl * ast::Pass< core_t >::visit( const ast::TypeDecl * node ) {
601	VISIT_START( node );
602
603	if ( __visit_children() ) {
604	guard_symtab guard { *this };
605	maybe_accept( node, &TypeDecl::base );
606	}
607
608	// see A NOTE ON THE ORDER OF TRAVERSAL, above
609	// note that assertions come after the type is added to the symtab, since they are not part of the type proper
610	// and may depend on the type itself
611	__pass::symtab::addType( core, 0, node );
612
613	if ( __visit_children() ) {
614	maybe_accept( node, &TypeDecl::assertions );
615
616	{
617	guard_symtab guard { *this };
618	maybe_accept( node, &TypeDecl::init );
619	}
620	}
621
622	VISIT_END( Decl, node );
623	}
624
625	//--------------------------------------------------------------------------
626	// TypedefDecl
627	template< typename core_t >
628	const ast::Decl * ast::Pass< core_t >::visit( const ast::TypedefDecl * node ) {
629	VISIT_START( node );
630
631	if ( __visit_children() ) {
632	guard_symtab guard { *this };
633	maybe_accept( node, &TypedefDecl::base );
634	}
635
636	__pass::symtab::addType( core, 0, node );
637
638	if ( __visit_children() ) {
639	maybe_accept( node, &TypedefDecl::assertions );
640	}
641
642	VISIT_END( Decl, node );
643	}
644
645	//--------------------------------------------------------------------------
646	// AsmDecl
647	template< typename core_t >
648	const ast::AsmDecl * ast::Pass< core_t >::visit( const ast::AsmDecl * node ) {
649	VISIT_START( node );
650
651	if ( __visit_children() ) {
652	maybe_accept( node, &AsmDecl::stmt );
653	}
654
655	VISIT_END( AsmDecl, node );
656	}
657
658	//--------------------------------------------------------------------------
659	// DirectiveDecl
660	template< typename core_t >
661	const ast::DirectiveDecl * ast::Pass< core_t >::visit( const ast::DirectiveDecl * node ) {
662	VISIT_START( node );
663
664	if ( __visit_children() ) {
665	maybe_accept( node, &DirectiveDecl::stmt );
666	}
667
668	VISIT_END( DirectiveDecl, node );
669	}
670
671	//--------------------------------------------------------------------------
672	// StaticAssertDecl
673	template< typename core_t >
674	const ast::StaticAssertDecl * ast::Pass< core_t >::visit( const ast::StaticAssertDecl * node ) {
675	VISIT_START( node );
676
677	if ( __visit_children() ) {
678	maybe_accept_top( node, &StaticAssertDecl::cond );
679	maybe_accept( node, &StaticAssertDecl::msg );
680	}
681
682	VISIT_END( StaticAssertDecl, node );
683	}
684
685	//--------------------------------------------------------------------------
686	// InlineMemberDecl
687	template< typename core_t >
688	const ast::DeclWithType * ast::Pass< core_t >::visit( const ast::InlineMemberDecl * node ) {
689	VISIT_START( node );
690
691	if ( __visit_children() ) {
692	{
693	guard_symtab guard { *this };
694	maybe_accept( node, &InlineMemberDecl::type );
695	}
696	}
697
698	VISIT_END( DeclWithType, node );
699	}
700
701	//--------------------------------------------------------------------------
702	// CompoundStmt
703	template< typename core_t >
704	const ast::CompoundStmt * ast::Pass< core_t >::visit( const ast::CompoundStmt * node ) {
705	VISIT_START( node );
706
707	if ( __visit_children() ) {
708	// Do not enter (or leave) a new symbol table scope if atFunctionTop.
709	// But always enter (and leave) a new general scope.
710	if ( atFunctionTop ) {
711	ValueGuard< bool > guard1( atFunctionTop );
712	atFunctionTop = false;
713	guard_scope guard2( *this );
714	maybe_accept( node, &CompoundStmt::kids );
715	} else {
716	guard_symtab guard1( *this );
717	guard_scope guard2( *this );
718	maybe_accept( node, &CompoundStmt::kids );
719	}
720	}
721
722	VISIT_END( CompoundStmt, node );
723	}
724
725	//--------------------------------------------------------------------------
726	// ExprStmt
727	template< typename core_t >
728	const ast::Stmt * ast::Pass< core_t >::visit( const ast::ExprStmt * node ) {
729	VISIT_START( node );
730
731	if ( __visit_children() ) {
732	maybe_accept_top( node, &ExprStmt::expr );
733	}
734
735	VISIT_END( Stmt, node );
736	}
737
738	//--------------------------------------------------------------------------
739	// AsmStmt
740	template< typename core_t >
741	const ast::Stmt * ast::Pass< core_t >::visit( const ast::AsmStmt * node ) {
742	VISIT_START( node )
743
744	if ( __visit_children() ) {
745	maybe_accept( node, &AsmStmt::instruction );
746	maybe_accept( node, &AsmStmt::output );
747	maybe_accept( node, &AsmStmt::input );
748	maybe_accept( node, &AsmStmt::clobber );
749	}
750
751	VISIT_END( Stmt, node );
752	}
753
754	//--------------------------------------------------------------------------
755	// DirectiveStmt
756	template< typename core_t >
757	const ast::Stmt * ast::Pass< core_t >::visit( const ast::DirectiveStmt * node ) {
758	VISIT_START( node )
759
760	VISIT_END( Stmt, node );
761	}
762
763	//--------------------------------------------------------------------------
764	// IfStmt
765	template< typename core_t >
766	const ast::Stmt * ast::Pass< core_t >::visit( const ast::IfStmt * node ) {
767	VISIT_START( node );
768
769	if ( __visit_children() ) {
770	// if statements introduce a level of scope (for the initialization)
771	guard_symtab guard { *this };
772	maybe_accept( node, &IfStmt::inits );
773	maybe_accept_top( node, &IfStmt::cond );
774	maybe_accept_as_compound( node, &IfStmt::then );
775	maybe_accept_as_compound( node, &IfStmt::else_ );
776	}
777
778	VISIT_END( Stmt, node );
779	}
780
781	//--------------------------------------------------------------------------
782	// WhileDoStmt
783	template< typename core_t >
784	const ast::Stmt * ast::Pass< core_t >::visit( const ast::WhileDoStmt * node ) {
785	VISIT_START( node );
786
787	if ( __visit_children() ) {
788	// while statements introduce a level of scope (for the initialization)
789	guard_symtab guard { *this };
790	maybe_accept( node, &WhileDoStmt::inits );
791	maybe_accept_top( node, &WhileDoStmt::cond );
792	maybe_accept_as_compound( node, &WhileDoStmt::body );
793	}
794
795	VISIT_END( Stmt, node );
796	}
797
798	//--------------------------------------------------------------------------
799	// ForStmt
800	template< typename core_t >
801	const ast::Stmt * ast::Pass< core_t >::visit( const ast::ForStmt * node ) {
802	VISIT_START( node );
803
804	if ( __visit_children() ) {
805	// for statements introduce a level of scope (for the initialization)
806	guard_symtab guard { *this };
807	// xxx - old ast does not create WithStmtsToAdd scope for loop inits. should revisit this later.
808	maybe_accept( node, &ForStmt::inits );
809	maybe_accept_top( node, &ForStmt::cond );
810	maybe_accept_top( node, &ForStmt::inc );
811	maybe_accept_as_compound( node, &ForStmt::body );
812	}
813
814	VISIT_END( Stmt, node );
815	}
816
817	//--------------------------------------------------------------------------
818	// SwitchStmt
819	template< typename core_t >
820	const ast::Stmt * ast::Pass< core_t >::visit( const ast::SwitchStmt * node ) {
821	VISIT_START( node );
822
823	if ( __visit_children() ) {
824	maybe_accept_top( node, &SwitchStmt::cond );
825	maybe_accept( node, &SwitchStmt::cases );
826	}
827
828	VISIT_END( Stmt, node );
829	}
830
831	//--------------------------------------------------------------------------
832	// CaseClause
833	template< typename core_t >
834	const ast::CaseClause * ast::Pass< core_t >::visit( const ast::CaseClause * node ) {
835	VISIT_START( node );
836
837	if ( __visit_children() ) {
838	maybe_accept_top( node, &CaseClause::cond );
839	maybe_accept( node, &CaseClause::stmts );
840	}
841
842	VISIT_END( CaseClause, node );
843	}
844
845	//--------------------------------------------------------------------------
846	// BranchStmt
847	template< typename core_t >
848	const ast::Stmt * ast::Pass< core_t >::visit( const ast::BranchStmt * node ) {
849	VISIT_START( node );
850	VISIT_END( Stmt, node );
851	}
852
853	//--------------------------------------------------------------------------
854	// ReturnStmt
855	template< typename core_t >
856	const ast::Stmt * ast::Pass< core_t >::visit( const ast::ReturnStmt * node ) {
857	VISIT_START( node );
858
859	if ( __visit_children() ) {
860	maybe_accept_top( node, &ReturnStmt::expr );
861	}
862
863	VISIT_END( Stmt, node );
864	}
865
866	//--------------------------------------------------------------------------
867	// ThrowStmt
868	template< typename core_t >
869	const ast::Stmt * ast::Pass< core_t >::visit( const ast::ThrowStmt * node ) {
870	VISIT_START( node );
871
872	if ( __visit_children() ) {
873	maybe_accept( node, &ThrowStmt::expr );
874	maybe_accept( node, &ThrowStmt::target );
875	}
876
877	VISIT_END( Stmt, node );
878	}
879
880	//--------------------------------------------------------------------------
881	// TryStmt
882	template< typename core_t >
883	const ast::Stmt * ast::Pass< core_t >::visit( const ast::TryStmt * node ) {
884	VISIT_START( node );
885
886	if ( __visit_children() ) {
887	maybe_accept( node, &TryStmt::body );
888	maybe_accept( node, &TryStmt::handlers );
889	maybe_accept( node, &TryStmt::finally );
890	}
891
892	VISIT_END( Stmt, node );
893	}
894
895	//--------------------------------------------------------------------------
896	// CatchClause
897	template< typename core_t >
898	const ast::CatchClause * ast::Pass< core_t >::visit( const ast::CatchClause * node ) {
899	VISIT_START( node );
900
901	if ( __visit_children() ) {
902	// catch statements introduce a level of scope (for the caught exception)
903	guard_symtab guard { *this };
904	maybe_accept( node, &CatchClause::decl );
905	maybe_accept_top( node, &CatchClause::cond );
906	maybe_accept_as_compound( node, &CatchClause::body );
907	}
908
909	VISIT_END( CatchClause, node );
910	}
911
912	//--------------------------------------------------------------------------
913	// FinallyClause
914	template< typename core_t >
915	const ast::FinallyClause * ast::Pass< core_t >::visit( const ast::FinallyClause * node ) {
916	VISIT_START( node );
917
918	if ( __visit_children() ) {
919	maybe_accept( node, &FinallyClause::body );
920	}
921
922	VISIT_END( FinallyClause, node );
923	}
924
925	//--------------------------------------------------------------------------
926	// FinallyStmt
927	template< typename core_t >
928	const ast::Stmt * ast::Pass< core_t >::visit( const ast::SuspendStmt * node ) {
929	VISIT_START( node );
930
931	if ( __visit_children() ) {
932	maybe_accept( node, &SuspendStmt::then );
933	}
934
935	VISIT_END( Stmt, node );
936	}
937
938	//--------------------------------------------------------------------------
939	// WhenClause
940	template< typename core_t >
941	const ast::WhenClause * ast::Pass< core_t >::visit( const ast::WhenClause * node ) {
942	VISIT_START( node );
943
944	if ( __visit_children() ) {
945	maybe_accept( node, &WhenClause::target );
946	maybe_accept( node, &WhenClause::stmt );
947	maybe_accept( node, &WhenClause::when_cond );
948	}
949
950	VISIT_END( WhenClause, node );
951	}
952
953	//--------------------------------------------------------------------------
954	// WaitForStmt
955	template< typename core_t >
956	const ast::Stmt * ast::Pass< core_t >::visit( const ast::WaitForStmt * node ) {
957	VISIT_START( node );
958
959	if ( __visit_children() ) {
960	maybe_accept( node, &WaitForStmt::clauses );
961	maybe_accept( node, &WaitForStmt::timeout_time );
962	maybe_accept( node, &WaitForStmt::timeout_stmt );
963	maybe_accept( node, &WaitForStmt::timeout_cond );
964	maybe_accept( node, &WaitForStmt::else_stmt );
965	maybe_accept( node, &WaitForStmt::else_cond );
966	}
967
968	VISIT_END( Stmt, node );
969	}
970
971	//--------------------------------------------------------------------------
972	// WaitForClause
973	template< typename core_t >
974	const ast::WaitForClause * ast::Pass< core_t >::visit( const ast::WaitForClause * node ) {
975	VISIT_START( node );
976
977	if ( __visit_children() ) {
978	maybe_accept( node, &WaitForClause::target );
979	maybe_accept( node, &WaitForClause::target_args );
980	maybe_accept( node, &WaitForClause::stmt );
981	maybe_accept( node, &WaitForClause::when_cond );
982	}
983
984	VISIT_END( WaitForClause, node );
985	}
986
987	//--------------------------------------------------------------------------
988	// WaitUntilStmt
989	template< typename core_t >
990	const ast::Stmt * ast::Pass< core_t >::visit( const ast::WaitUntilStmt * node ) {
991	VISIT_START( node );
992
993	if ( __visit_children() ) {
994	maybe_accept( node, &WaitUntilStmt::clauses );
995	maybe_accept( node, &WaitUntilStmt::timeout_time );
996	maybe_accept( node, &WaitUntilStmt::timeout_stmt );
997	maybe_accept( node, &WaitUntilStmt::timeout_cond );
998	maybe_accept( node, &WaitUntilStmt::else_stmt );
999	maybe_accept( node, &WaitUntilStmt::else_cond );
1000	}
1001
1002	VISIT_END( Stmt, node );
1003	}
1004
1005	//--------------------------------------------------------------------------
1006	// WithStmt
1007	template< typename core_t >
1008	const ast::Decl * ast::Pass< core_t >::visit( const ast::WithStmt * node ) {
1009	VISIT_START( node );
1010
1011	if ( __visit_children() ) {
1012	maybe_accept( node, &WithStmt::exprs );
1013	{
1014	// catch statements introduce a level of scope (for the caught exception)
1015	guard_symtab guard { *this };
1016	__pass::symtab::addWith( core, 0, node->exprs, node );
1017	maybe_accept( node, &WithStmt::stmt );
1018	}
1019	}
1020
1021	VISIT_END( Stmt, node );
1022	}
1023
1024	//--------------------------------------------------------------------------
1025	// NullStmt
1026	template< typename core_t >
1027	const ast::NullStmt * ast::Pass< core_t >::visit( const ast::NullStmt * node ) {
1028	VISIT_START( node );
1029	VISIT_END( NullStmt, node );
1030	}
1031
1032	//--------------------------------------------------------------------------
1033	// DeclStmt
1034	template< typename core_t >
1035	const ast::Stmt * ast::Pass< core_t >::visit( const ast::DeclStmt * node ) {
1036	VISIT_START( node );
1037
1038	if ( __visit_children() ) {
1039	maybe_accept( node, &DeclStmt::decl );
1040	}
1041
1042	VISIT_END( Stmt, node );
1043	}
1044
1045	//--------------------------------------------------------------------------
1046	// ImplicitCtorDtorStmt
1047	template< typename core_t >
1048	const ast::Stmt * ast::Pass< core_t >::visit( const ast::ImplicitCtorDtorStmt * node ) {
1049	VISIT_START( node );
1050
1051	// For now this isn't visited, it is unclear if this causes problem
1052	// if all tests are known to pass, remove this code
1053	if ( __visit_children() ) {
1054	maybe_accept( node, &ImplicitCtorDtorStmt::callStmt );
1055	}
1056
1057	VISIT_END( Stmt, node );
1058	}
1059
1060	//--------------------------------------------------------------------------
1061	// MutexStmt
1062	template< typename core_t >
1063	const ast::Stmt * ast::Pass< core_t >::visit( const ast::MutexStmt * node ) {
1064	VISIT_START( node );
1065
1066	if ( __visit_children() ) {
1067	// mutex statements introduce a level of scope (for the initialization)
1068	guard_symtab guard { *this };
1069	maybe_accept( node, &MutexStmt::stmt );
1070	maybe_accept( node, &MutexStmt::mutexObjs );
1071	}
1072
1073	VISIT_END( Stmt, node );
1074	}
1075
1076	//--------------------------------------------------------------------------
1077	// CorunStmt
1078	template< typename core_t >
1079	const ast::Stmt * ast::Pass< core_t >::visit( const ast::CorunStmt * node ) {
1080	VISIT_START( node );
1081
1082	if ( __visit_children() ) {
1083	maybe_accept( node, &CorunStmt::stmt );
1084	}
1085
1086	VISIT_END( Stmt, node );
1087	}
1088
1089	//--------------------------------------------------------------------------
1090	// CoforStmt
1091	template< typename core_t >
1092	const ast::Stmt * ast::Pass< core_t >::visit( const ast::CoforStmt * node ) {
1093	VISIT_START( node );
1094
1095	if ( __visit_children() ) {
1096	// for statements introduce a level of scope (for the initialization)
1097	guard_symtab guard { *this };
1098	maybe_accept( node, &CoforStmt::inits );
1099	maybe_accept_top( node, &CoforStmt::cond );
1100	maybe_accept_top( node, &CoforStmt::inc );
1101	maybe_accept_as_compound( node, &CoforStmt::body );
1102	}
1103
1104	VISIT_END( Stmt, node );
1105	}
1106
1107	//--------------------------------------------------------------------------
1108	// ApplicationExpr
1109	template< typename core_t >
1110	const ast::Expr * ast::Pass< core_t >::visit( const ast::ApplicationExpr * node ) {
1111	VISIT_START( node );
1112
1113	if ( __visit_children() ) {
1114	{
1115	guard_symtab guard { *this };
1116	maybe_accept( node, &ApplicationExpr::result );
1117	}
1118	maybe_accept( node, &ApplicationExpr::func );
1119	maybe_accept( node, &ApplicationExpr::args );
1120	}
1121
1122	VISIT_END( Expr, node );
1123	}
1124
1125	//--------------------------------------------------------------------------
1126	// UntypedExpr
1127	template< typename core_t >
1128	const ast::Expr * ast::Pass< core_t >::visit( const ast::UntypedExpr * node ) {
1129	VISIT_START( node );
1130
1131	if ( __visit_children() ) {
1132	{
1133	guard_symtab guard { *this };
1134	maybe_accept( node, &UntypedExpr::result );
1135	}
1136
1137	maybe_accept( node, &UntypedExpr::args );
1138	}
1139
1140	VISIT_END( Expr, node );
1141	}
1142
1143	//--------------------------------------------------------------------------
1144	// NameExpr
1145	template< typename core_t >
1146	const ast::Expr * ast::Pass< core_t >::visit( const ast::NameExpr * node ) {
1147	VISIT_START( node );
1148
1149	if ( __visit_children() ) {
1150	guard_symtab guard { *this };
1151	maybe_accept( node, &NameExpr::result );
1152	}
1153
1154	VISIT_END( Expr, node );
1155	}
1156
1157	//--------------------------------------------------------------------------
1158	// QualifiedNameExpr
1159	template< typename core_t >
1160	const ast::Expr * ast::Pass< core_t >::visit( const ast::QualifiedNameExpr * node ) {
1161	VISIT_START( node );
1162	if ( __visit_children() ) {
1163	guard_symtab guard { *this };
1164	maybe_accept( node, &QualifiedNameExpr::type_decl );
1165	}
1166	VISIT_END( Expr, node );
1167	}
1168
1169	//--------------------------------------------------------------------------
1170	// CastExpr
1171	template< typename core_t >
1172	const ast::Expr * ast::Pass< core_t >::visit( const ast::CastExpr * node ) {
1173	VISIT_START( node );
1174
1175	if ( __visit_children() ) {
1176	{
1177	guard_symtab guard { *this };
1178	maybe_accept( node, &CastExpr::result );
1179	}
1180	maybe_accept( node, &CastExpr::arg );
1181	}
1182
1183	VISIT_END( Expr, node );
1184	}
1185
1186	//--------------------------------------------------------------------------
1187	// KeywordCastExpr
1188	template< typename core_t >
1189	const ast::Expr * ast::Pass< core_t >::visit( const ast::KeywordCastExpr * node ) {
1190	VISIT_START( node );
1191
1192	if ( __visit_children() ) {
1193	{
1194	guard_symtab guard { *this };
1195	maybe_accept( node, &KeywordCastExpr::result );
1196	}
1197	maybe_accept( node, &KeywordCastExpr::arg );
1198	}
1199
1200	VISIT_END( Expr, node );
1201	}
1202
1203	//--------------------------------------------------------------------------
1204	// VirtualCastExpr
1205	template< typename core_t >
1206	const ast::Expr * ast::Pass< core_t >::visit( const ast::VirtualCastExpr * node ) {
1207	VISIT_START( node );
1208
1209	if ( __visit_children() ) {
1210	{
1211	guard_symtab guard { *this };
1212	maybe_accept( node, &VirtualCastExpr::result );
1213	}
1214	maybe_accept( node, &VirtualCastExpr::arg );
1215	}
1216
1217	VISIT_END( Expr, node );
1218	}
1219
1220	//--------------------------------------------------------------------------
1221	// AddressExpr
1222	template< typename core_t >
1223	const ast::Expr * ast::Pass< core_t >::visit( const ast::AddressExpr * node ) {
1224	VISIT_START( node );
1225
1226	if ( __visit_children() ) {
1227	{
1228	guard_symtab guard { *this };
1229	maybe_accept( node, &AddressExpr::result );
1230	}
1231	maybe_accept( node, &AddressExpr::arg );
1232	}
1233
1234	VISIT_END( Expr, node );
1235	}
1236
1237	//--------------------------------------------------------------------------
1238	// LabelAddressExpr
1239	template< typename core_t >
1240	const ast::Expr * ast::Pass< core_t >::visit( const ast::LabelAddressExpr * node ) {
1241	VISIT_START( node );
1242
1243	if ( __visit_children() ) {
1244	guard_symtab guard { *this };
1245	maybe_accept( node, &LabelAddressExpr::result );
1246	}
1247
1248	VISIT_END( Expr, node );
1249	}
1250
1251	//--------------------------------------------------------------------------
1252	// UntypedMemberExpr
1253	template< typename core_t >
1254	const ast::Expr * ast::Pass< core_t >::visit( const ast::UntypedMemberExpr * node ) {
1255	VISIT_START( node );
1256
1257	if ( __visit_children() ) {
1258	{
1259	guard_symtab guard { *this };
1260	maybe_accept( node, &UntypedMemberExpr::result );
1261	}
1262	maybe_accept( node, &UntypedMemberExpr::aggregate );
1263	maybe_accept( node, &UntypedMemberExpr::member );
1264	}
1265
1266	VISIT_END( Expr, node );
1267	}
1268
1269	//--------------------------------------------------------------------------
1270	// MemberExpr
1271	template< typename core_t >
1272	const ast::Expr * ast::Pass< core_t >::visit( const ast::MemberExpr * node ) {
1273	VISIT_START( node );
1274
1275	if ( __visit_children() ) {
1276	{
1277	guard_symtab guard { *this };
1278	maybe_accept( node, &MemberExpr::result );
1279	}
1280	maybe_accept( node, &MemberExpr::aggregate );
1281	}
1282
1283	VISIT_END( Expr, node );
1284	}
1285
1286	//--------------------------------------------------------------------------
1287	// VariableExpr
1288	template< typename core_t >
1289	const ast::Expr * ast::Pass< core_t >::visit( const ast::VariableExpr * node ) {
1290	VISIT_START( node );
1291
1292	if ( __visit_children() ) {
1293	guard_symtab guard { *this };
1294	maybe_accept( node, &VariableExpr::result );
1295	}
1296
1297	VISIT_END( Expr, node );
1298	}
1299
1300	//--------------------------------------------------------------------------
1301	// ConstantExpr
1302	template< typename core_t >
1303	const ast::Expr * ast::Pass< core_t >::visit( const ast::ConstantExpr * node ) {
1304	VISIT_START( node );
1305
1306	if ( __visit_children() ) {
1307	guard_symtab guard { *this };
1308	maybe_accept( node, &ConstantExpr::result );
1309	}
1310
1311	VISIT_END( Expr, node );
1312	}
1313
1314	//--------------------------------------------------------------------------
1315	// SizeofExpr
1316	template< typename core_t >
1317	const ast::Expr * ast::Pass< core_t >::visit( const ast::SizeofExpr * node ) {
1318	VISIT_START( node );
1319
1320	if ( __visit_children() ) {
1321	{
1322	guard_symtab guard { *this };
1323	maybe_accept( node, &SizeofExpr::result );
1324	}
1325	if ( node->type ) {
1326	maybe_accept( node, &SizeofExpr::type );
1327	} else {
1328	maybe_accept( node, &SizeofExpr::expr );
1329	}
1330	}
1331
1332	VISIT_END( Expr, node );
1333	}
1334
1335	//--------------------------------------------------------------------------
1336	// AlignofExpr
1337	template< typename core_t >
1338	const ast::Expr * ast::Pass< core_t >::visit( const ast::AlignofExpr * node ) {
1339	VISIT_START( node );
1340
1341	if ( __visit_children() ) {
1342	{
1343	guard_symtab guard { *this };
1344	maybe_accept( node, &AlignofExpr::result );
1345	}
1346	if ( node->type ) {
1347	maybe_accept( node, &AlignofExpr::type );
1348	} else {
1349	maybe_accept( node, &AlignofExpr::expr );
1350	}
1351	}
1352
1353	VISIT_END( Expr, node );
1354	}
1355
1356	//--------------------------------------------------------------------------
1357	// UntypedOffsetofExpr
1358	template< typename core_t >
1359	const ast::Expr * ast::Pass< core_t >::visit( const ast::UntypedOffsetofExpr * node ) {
1360	VISIT_START( node );
1361
1362	if ( __visit_children() ) {
1363	{
1364	guard_symtab guard { *this };
1365	maybe_accept( node, &UntypedOffsetofExpr::result );
1366	}
1367	maybe_accept( node, &UntypedOffsetofExpr::type );
1368	}
1369
1370	VISIT_END( Expr, node );
1371	}
1372
1373	//--------------------------------------------------------------------------
1374	// OffsetofExpr
1375	template< typename core_t >
1376	const ast::Expr * ast::Pass< core_t >::visit( const ast::OffsetofExpr * node ) {
1377	VISIT_START( node );
1378
1379	if ( __visit_children() ) {
1380	{
1381	guard_symtab guard { *this };
1382	maybe_accept( node, &OffsetofExpr::result );
1383	}
1384	maybe_accept( node, &OffsetofExpr::type );
1385	}
1386
1387	VISIT_END( Expr, node );
1388	}
1389
1390	//--------------------------------------------------------------------------
1391	// OffsetPackExpr
1392	template< typename core_t >
1393	const ast::Expr * ast::Pass< core_t >::visit( const ast::OffsetPackExpr * node ) {
1394	VISIT_START( node );
1395
1396	if ( __visit_children() ) {
1397	{
1398	guard_symtab guard { *this };
1399	maybe_accept( node, &OffsetPackExpr::result );
1400	}
1401	maybe_accept( node, &OffsetPackExpr::type );
1402	}
1403
1404	VISIT_END( Expr, node );
1405	}
1406
1407	//--------------------------------------------------------------------------
1408	// LogicalExpr
1409	template< typename core_t >
1410	const ast::Expr * ast::Pass< core_t >::visit( const ast::LogicalExpr * node ) {
1411	VISIT_START( node );
1412
1413	if ( __visit_children() ) {
1414	{
1415	guard_symtab guard { *this };
1416	maybe_accept( node, &LogicalExpr::result );
1417	}
1418	maybe_accept( node, &LogicalExpr::arg1 );
1419	maybe_accept( node, &LogicalExpr::arg2 );
1420	}
1421
1422	VISIT_END( Expr, node );
1423	}
1424
1425	//--------------------------------------------------------------------------
1426	// ConditionalExpr
1427	template< typename core_t >
1428	const ast::Expr * ast::Pass< core_t >::visit( const ast::ConditionalExpr * node ) {
1429	VISIT_START( node );
1430
1431	if ( __visit_children() ) {
1432	{
1433	guard_symtab guard { *this };
1434	maybe_accept( node, &ConditionalExpr::result );
1435	}
1436	maybe_accept( node, &ConditionalExpr::arg1 );
1437	maybe_accept( node, &ConditionalExpr::arg2 );
1438	maybe_accept( node, &ConditionalExpr::arg3 );
1439	}
1440
1441	VISIT_END( Expr, node );
1442	}
1443
1444	//--------------------------------------------------------------------------
1445	// CommaExpr
1446	template< typename core_t >
1447	const ast::Expr * ast::Pass< core_t >::visit( const ast::CommaExpr * node ) {
1448	VISIT_START( node );
1449
1450	if ( __visit_children() ) {
1451	{
1452	guard_symtab guard { *this };
1453	maybe_accept( node, &CommaExpr::result );
1454	}
1455	maybe_accept( node, &CommaExpr::arg1 );
1456	maybe_accept( node, &CommaExpr::arg2 );
1457	}
1458
1459	VISIT_END( Expr, node );
1460	}
1461
1462	//--------------------------------------------------------------------------
1463	// TypeExpr
1464	template< typename core_t >
1465	const ast::Expr * ast::Pass< core_t >::visit( const ast::TypeExpr * node ) {
1466	VISIT_START( node );
1467
1468	if ( __visit_children() ) {
1469	{
1470	guard_symtab guard { *this };
1471	maybe_accept( node, &TypeExpr::result );
1472	}
1473	maybe_accept( node, &TypeExpr::type );
1474	}
1475
1476	VISIT_END( Expr, node );
1477	}
1478
1479	//--------------------------------------------------------------------------
1480	// DimensionExpr
1481	template< typename core_t >
1482	const ast::Expr * ast::Pass< core_t >::visit( const ast::DimensionExpr * node ) {
1483	VISIT_START( node );
1484
1485	if ( __visit_children() ) {
1486	guard_symtab guard { *this };
1487	maybe_accept( node, &DimensionExpr::result );
1488	}
1489
1490	VISIT_END( Expr, node );
1491	}
1492
1493	//--------------------------------------------------------------------------
1494	// AsmExpr
1495	template< typename core_t >
1496	const ast::Expr * ast::Pass< core_t >::visit( const ast::AsmExpr * node ) {
1497	VISIT_START( node );
1498
1499	if ( __visit_children() ) {
1500	{
1501	guard_symtab guard { *this };
1502	maybe_accept( node, &AsmExpr::result );
1503	}
1504	maybe_accept( node, &AsmExpr::constraint );
1505	maybe_accept( node, &AsmExpr::operand );
1506	}
1507
1508	VISIT_END( Expr, node );
1509	}
1510
1511	//--------------------------------------------------------------------------
1512	// ImplicitCopyCtorExpr
1513	template< typename core_t >
1514	const ast::Expr * ast::Pass< core_t >::visit( const ast::ImplicitCopyCtorExpr * node ) {
1515	VISIT_START( node );
1516
1517	if ( __visit_children() ) {
1518	{
1519	guard_symtab guard { *this };
1520	maybe_accept( node, &ImplicitCopyCtorExpr::result );
1521	}
1522	maybe_accept( node, &ImplicitCopyCtorExpr::callExpr );
1523	}
1524
1525	VISIT_END( Expr, node );
1526	}
1527
1528	//--------------------------------------------------------------------------
1529	// ConstructorExpr
1530	template< typename core_t >
1531	const ast::Expr * ast::Pass< core_t >::visit( const ast::ConstructorExpr * node ) {
1532	VISIT_START( node );
1533
1534	if ( __visit_children() ) {
1535	{
1536	guard_symtab guard { *this };
1537	maybe_accept( node, &ConstructorExpr::result );
1538	}
1539	maybe_accept( node, &ConstructorExpr::callExpr );
1540	}
1541
1542	VISIT_END( Expr, node );
1543	}
1544
1545	//--------------------------------------------------------------------------
1546	// CompoundLiteralExpr
1547	template< typename core_t >
1548	const ast::Expr * ast::Pass< core_t >::visit( const ast::CompoundLiteralExpr * node ) {
1549	VISIT_START( node );
1550
1551	if ( __visit_children() ) {
1552	{
1553	guard_symtab guard { *this };
1554	maybe_accept( node, &CompoundLiteralExpr::result );
1555	}
1556	maybe_accept( node, &CompoundLiteralExpr::init );
1557	}
1558
1559	VISIT_END( Expr, node );
1560	}
1561
1562	//--------------------------------------------------------------------------
1563	// RangeExpr
1564	template< typename core_t >
1565	const ast::Expr * ast::Pass< core_t >::visit( const ast::RangeExpr * node ) {
1566	VISIT_START( node );
1567
1568	if ( __visit_children() ) {
1569	{
1570	guard_symtab guard { *this };
1571	maybe_accept( node, &RangeExpr::result );
1572	}
1573	maybe_accept( node, &RangeExpr::low );
1574	maybe_accept( node, &RangeExpr::high );
1575	}
1576
1577	VISIT_END( Expr, node );
1578	}
1579
1580	//--------------------------------------------------------------------------
1581	// UntypedTupleExpr
1582	template< typename core_t >
1583	const ast::Expr * ast::Pass< core_t >::visit( const ast::UntypedTupleExpr * node ) {
1584	VISIT_START( node );
1585
1586	if ( __visit_children() ) {
1587	{
1588	guard_symtab guard { *this };
1589	maybe_accept( node, &UntypedTupleExpr::result );
1590	}
1591	maybe_accept( node, &UntypedTupleExpr::exprs );
1592	}
1593
1594	VISIT_END( Expr, node );
1595	}
1596
1597	//--------------------------------------------------------------------------
1598	// TupleExpr
1599	template< typename core_t >
1600	const ast::Expr * ast::Pass< core_t >::visit( const ast::TupleExpr * node ) {
1601	VISIT_START( node );
1602
1603	if ( __visit_children() ) {
1604	{
1605	guard_symtab guard { *this };
1606	maybe_accept( node, &TupleExpr::result );
1607	}
1608	maybe_accept( node, &TupleExpr::exprs );
1609	}
1610
1611	VISIT_END( Expr, node );
1612	}
1613
1614	//--------------------------------------------------------------------------
1615	// TupleIndexExpr
1616	template< typename core_t >
1617	const ast::Expr * ast::Pass< core_t >::visit( const ast::TupleIndexExpr * node ) {
1618	VISIT_START( node );
1619
1620	if ( __visit_children() ) {
1621	{
1622	guard_symtab guard { *this };
1623	maybe_accept( node, &TupleIndexExpr::result );
1624	}
1625	maybe_accept( node, &TupleIndexExpr::tuple );
1626	}
1627
1628	VISIT_END( Expr, node );
1629	}
1630
1631	//--------------------------------------------------------------------------
1632	// TupleAssignExpr
1633	template< typename core_t >
1634	const ast::Expr * ast::Pass< core_t >::visit( const ast::TupleAssignExpr * node ) {
1635	VISIT_START( node );
1636
1637	if ( __visit_children() ) {
1638	{
1639	guard_symtab guard { *this };
1640	maybe_accept( node, &TupleAssignExpr::result );
1641	}
1642	maybe_accept( node, &TupleAssignExpr::stmtExpr );
1643	}
1644
1645	VISIT_END( Expr, node );
1646	}
1647
1648	//--------------------------------------------------------------------------
1649	// StmtExpr
1650	template< typename core_t >
1651	const ast::Expr * ast::Pass< core_t >::visit( const ast::StmtExpr * node ) {
1652	VISIT_START( node );
1653
1654	if ( __visit_children() ) {
1655	// don't want statements from outer CompoundStmts to be added to this StmtExpr
1656	// get the stmts that will need to be spliced in
1657	auto stmts_before = __pass::stmtsToAddBefore( core, 0);
1658	auto stmts_after = __pass::stmtsToAddAfter ( core, 0);
1659
1660	// These may be modified by subnode but most be restored once we exit this statemnet.
1661	ValueGuardPtr< const ast::TypeSubstitution * > __old_env( __pass::typeSubs( core, 0 ) );
1662	ValueGuardPtr< typename std::remove_pointer< decltype(stmts_before) >::type > __old_decls_before( stmts_before );
1663	ValueGuardPtr< typename std::remove_pointer< decltype(stmts_after ) >::type > __old_decls_after ( stmts_after );
1664
1665	{
1666	guard_symtab guard { *this };
1667	maybe_accept( node, &StmtExpr::result );
1668	}
1669	maybe_accept( node, &StmtExpr::stmts );
1670	maybe_accept( node, &StmtExpr::returnDecls );
1671	maybe_accept( node, &StmtExpr::dtors );
1672	}
1673
1674	VISIT_END( Expr, node );
1675	}
1676
1677	//--------------------------------------------------------------------------
1678	// UniqueExpr
1679	template< typename core_t >
1680	const ast::Expr * ast::Pass< core_t >::visit( const ast::UniqueExpr * node ) {
1681	VISIT_START( node );
1682
1683	if ( __visit_children() ) {
1684	{
1685	guard_symtab guard { *this };
1686	maybe_accept( node, &UniqueExpr::result );
1687	}
1688	maybe_accept( node, &UniqueExpr::expr );
1689	}
1690
1691	VISIT_END( Expr, node );
1692	}
1693
1694	//--------------------------------------------------------------------------
1695	// UntypedInitExpr
1696	template< typename core_t >
1697	const ast::Expr * ast::Pass< core_t >::visit( const ast::UntypedInitExpr * node ) {
1698	VISIT_START( node );
1699
1700	if ( __visit_children() ) {
1701	{
1702	guard_symtab guard { *this };
1703	maybe_accept( node, &UntypedInitExpr::result );
1704	}
1705	maybe_accept( node, &UntypedInitExpr::expr );
1706	// not currently visiting initAlts, but this doesn't matter since this node is only used in the resolver.
1707	}
1708
1709	VISIT_END( Expr, node );
1710	}
1711
1712	//--------------------------------------------------------------------------
1713	// InitExpr
1714	template< typename core_t >
1715	const ast::Expr * ast::Pass< core_t >::visit( const ast::InitExpr * node ) {
1716	VISIT_START( node );
1717
1718	if ( __visit_children() ) {
1719	{
1720	guard_symtab guard { *this };
1721	maybe_accept( node, &InitExpr::result );
1722	}
1723	maybe_accept( node, &InitExpr::expr );
1724	maybe_accept( node, &InitExpr::designation );
1725	}
1726
1727	VISIT_END( Expr, node );
1728	}
1729
1730	//--------------------------------------------------------------------------
1731	// DeletedExpr
1732	template< typename core_t >
1733	const ast::Expr * ast::Pass< core_t >::visit( const ast::DeletedExpr * node ) {
1734	VISIT_START( node );
1735
1736	if ( __visit_children() ) {
1737	{
1738	guard_symtab guard { *this };
1739	maybe_accept( node, &DeletedExpr::result );
1740	}
1741	maybe_accept( node, &DeletedExpr::expr );
1742	// don't visit deleteStmt, because it is a pointer to somewhere else in the tree.
1743	}
1744
1745	VISIT_END( Expr, node );
1746	}
1747
1748	//--------------------------------------------------------------------------
1749	// DefaultArgExpr
1750	template< typename core_t >
1751	const ast::Expr * ast::Pass< core_t >::visit( const ast::DefaultArgExpr * node ) {
1752	VISIT_START( node );
1753
1754	if ( __visit_children() ) {
1755	{
1756	guard_symtab guard { *this };
1757	maybe_accept( node, &DefaultArgExpr::result );
1758	}
1759	maybe_accept( node, &DefaultArgExpr::expr );
1760	}
1761
1762	VISIT_END( Expr, node );
1763	}
1764
1765	//--------------------------------------------------------------------------
1766	// GenericExpr
1767	template< typename core_t >
1768	const ast::Expr * ast::Pass< core_t >::visit( const ast::GenericExpr * node ) {
1769	VISIT_START( node );
1770
1771	if ( __visit_children() ) {
1772	{
1773	guard_symtab guard { *this };
1774	maybe_accept( node, &GenericExpr::result );
1775	}
1776	maybe_accept( node, &GenericExpr::control );
1777
1778	std::vector<GenericExpr::Association> new_kids;
1779	new_kids.reserve(node->associations.size());
1780	bool mutated = false;
1781	for( const auto & assoc : node->associations ) {
1782	const Type * type = nullptr;
1783	if( assoc.type ) {
1784	guard_symtab guard { *this };
1785	type = assoc.type->accept( *this );
1786	if( type != assoc.type ) mutated = true;
1787	}
1788	const Expr * expr = nullptr;
1789	if( assoc.expr ) {
1790	expr = assoc.expr->accept( *this );
1791	if( expr != assoc.expr ) mutated = true;
1792	}
1793	new_kids.emplace_back( type, expr );
1794	}
1795
1796	if(mutated) {
1797	auto n = __pass::mutate<core_t>(node);
1798	n->associations = std::move( new_kids );
1799	node = n;
1800	}
1801	}
1802
1803	VISIT_END( Expr, node );
1804	}
1805
1806	//--------------------------------------------------------------------------
1807	// VoidType
1808	template< typename core_t >
1809	const ast::Type * ast::Pass< core_t >::visit( const ast::VoidType * node ) {
1810	VISIT_START( node );
1811
1812	VISIT_END( Type, node );
1813	}
1814
1815	//--------------------------------------------------------------------------
1816	// BasicType
1817	template< typename core_t >
1818	const ast::Type * ast::Pass< core_t >::visit( const ast::BasicType * node ) {
1819	VISIT_START( node );
1820
1821	VISIT_END( Type, node );
1822	}
1823
1824	//--------------------------------------------------------------------------
1825	// PointerType
1826	template< typename core_t >
1827	const ast::Type * ast::Pass< core_t >::visit( const ast::PointerType * node ) {
1828	VISIT_START( node );
1829
1830	if ( __visit_children() ) {
1831	maybe_accept( node, &PointerType::dimension );
1832	maybe_accept( node, &PointerType::base );
1833	}
1834
1835	VISIT_END( Type, node );
1836	}
1837
1838	//--------------------------------------------------------------------------
1839	// ArrayType
1840	template< typename core_t >
1841	const ast::Type * ast::Pass< core_t >::visit( const ast::ArrayType * node ) {
1842	VISIT_START( node );
1843
1844	if ( __visit_children() ) {
1845	maybe_accept( node, &ArrayType::dimension );
1846	maybe_accept( node, &ArrayType::base );
1847	}
1848
1849	VISIT_END( Type, node );
1850	}
1851
1852	//--------------------------------------------------------------------------
1853	// ReferenceType
1854	template< typename core_t >
1855	const ast::Type * ast::Pass< core_t >::visit( const ast::ReferenceType * node ) {
1856	VISIT_START( node );
1857
1858	if ( __visit_children() ) {
1859	maybe_accept( node, &ReferenceType::base );
1860	}
1861
1862	VISIT_END( Type, node );
1863	}
1864
1865	//--------------------------------------------------------------------------
1866	// QualifiedType
1867	template< typename core_t >
1868	const ast::Type * ast::Pass< core_t >::visit( const ast::QualifiedType * node ) {
1869	VISIT_START( node );
1870
1871	if ( __visit_children() ) {
1872	maybe_accept( node, &QualifiedType::parent );
1873	maybe_accept( node, &QualifiedType::child );
1874	}
1875
1876	VISIT_END( Type, node );
1877	}
1878
1879	//--------------------------------------------------------------------------
1880	// FunctionType
1881	template< typename core_t >
1882	const ast::Type * ast::Pass< core_t >::visit( const ast::FunctionType * node ) {
1883	VISIT_START( node );
1884
1885	if ( __visit_children() ) {
1886	// guard_forall_subs forall_guard { *this, node };
1887	// mutate_forall( node );
1888	maybe_accept( node, &FunctionType::assertions );
1889	maybe_accept( node, &FunctionType::returns );
1890	maybe_accept( node, &FunctionType::params );
1891	}
1892
1893	VISIT_END( Type, node );
1894	}
1895
1896	//--------------------------------------------------------------------------
1897	// StructInstType
1898	template< typename core_t >
1899	const ast::Type * ast::Pass< core_t >::visit( const ast::StructInstType * node ) {
1900	VISIT_START( node );
1901
1902	__pass::symtab::addStructId( core, 0, node->name );
1903
1904	if ( __visit_children() ) {
1905	guard_symtab guard { *this };
1906	maybe_accept( node, &StructInstType::params );
1907	}
1908
1909	VISIT_END( Type, node );
1910	}
1911
1912	//--------------------------------------------------------------------------
1913	// UnionInstType
1914	template< typename core_t >
1915	const ast::Type * ast::Pass< core_t >::visit( const ast::UnionInstType * node ) {
1916	VISIT_START( node );
1917
1918	__pass::symtab::addUnionId( core, 0, node->name );
1919
1920	if ( __visit_children() ) {
1921	guard_symtab guard { *this };
1922	maybe_accept( node, &UnionInstType::params );
1923	}
1924
1925	VISIT_END( Type, node );
1926	}
1927
1928	//--------------------------------------------------------------------------
1929	// EnumInstType
1930	template< typename core_t >
1931	const ast::Type * ast::Pass< core_t >::visit( const ast::EnumInstType * node ) {
1932	VISIT_START( node );
1933
1934	if ( __visit_children() ) {
1935	maybe_accept( node, &EnumInstType::params );
1936	}
1937
1938	VISIT_END( Type, node );
1939	}
1940
1941	//--------------------------------------------------------------------------
1942	// EnumAttrType
1943	template< typename core_t >
1944	const ast::Type * ast::Pass< core_t >::visit( const ast::EnumAttrType * node ) {
1945	VISIT_START( node );
1946	VISIT_END( Type, node );
1947	}
1948
1949	//--------------------------------------------------------------------------
1950	// TraitInstType
1951	template< typename core_t >
1952	const ast::Type * ast::Pass< core_t >::visit( const ast::TraitInstType * node ) {
1953	VISIT_START( node );
1954
1955	if ( __visit_children() ) {
1956	maybe_accept( node, &TraitInstType::params );
1957	}
1958
1959	VISIT_END( Type, node );
1960	}
1961
1962	//--------------------------------------------------------------------------
1963	// TypeInstType
1964	template< typename core_t >
1965	const ast::Type * ast::Pass< core_t >::visit( const ast::TypeInstType * node ) {
1966	VISIT_START( node );
1967
1968	if ( __visit_children() ) {
1969	{
1970	maybe_accept( node, &TypeInstType::params );
1971	}
1972	// ensure that base re-bound if doing substitution
1973	__pass::forall::replace( core, 0, node );
1974	}
1975
1976	VISIT_END( Type, node );
1977	}
1978
1979	//--------------------------------------------------------------------------
1980	// TupleType
1981	template< typename core_t >
1982	const ast::Type * ast::Pass< core_t >::visit( const ast::TupleType * node ) {
1983	VISIT_START( node );
1984
1985	if ( __visit_children() ) {
1986	maybe_accept( node, &TupleType::types );
1987	}
1988
1989	VISIT_END( Type, node );
1990	}
1991
1992	//--------------------------------------------------------------------------
1993	// TypeofType
1994	template< typename core_t >
1995	const ast::Type * ast::Pass< core_t >::visit( const ast::TypeofType * node ) {
1996	VISIT_START( node );
1997
1998	if ( __visit_children() ) {
1999	maybe_accept( node, &TypeofType::expr );
2000	}
2001
2002	VISIT_END( Type, node );
2003	}
2004
2005	//--------------------------------------------------------------------------
2006	// VTableType
2007	template< typename core_t >
2008	const ast::Type * ast::Pass< core_t >::visit( const ast::VTableType * node ) {
2009	VISIT_START( node );
2010
2011	if ( __visit_children() ) {
2012	maybe_accept( node, &VTableType::base );
2013	}
2014
2015	VISIT_END( Type, node );
2016	}
2017
2018	//--------------------------------------------------------------------------
2019	// VarArgsType
2020	template< typename core_t >
2021	const ast::Type * ast::Pass< core_t >::visit( const ast::VarArgsType * node ) {
2022	VISIT_START( node );
2023
2024	VISIT_END( Type, node );
2025	}
2026
2027	//--------------------------------------------------------------------------
2028	// ZeroType
2029	template< typename core_t >
2030	const ast::Type * ast::Pass< core_t >::visit( const ast::ZeroType * node ) {
2031	VISIT_START( node );
2032
2033	VISIT_END( Type, node );
2034	}
2035
2036	//--------------------------------------------------------------------------
2037	// OneType
2038	template< typename core_t >
2039	const ast::Type * ast::Pass< core_t >::visit( const ast::OneType * node ) {
2040	VISIT_START( node );
2041
2042	VISIT_END( Type, node );
2043	}
2044
2045	//--------------------------------------------------------------------------
2046	// GlobalScopeType
2047	template< typename core_t >
2048	const ast::Type * ast::Pass< core_t >::visit( const ast::GlobalScopeType * node ) {
2049	VISIT_START( node );
2050
2051	VISIT_END( Type, node );
2052	}
2053
2054
2055	//--------------------------------------------------------------------------
2056	// Designation
2057	template< typename core_t >
2058	const ast::Designation * ast::Pass< core_t >::visit( const ast::Designation * node ) {
2059	VISIT_START( node );
2060
2061	if ( __visit_children() ) {
2062	maybe_accept( node, &Designation::designators );
2063	}
2064
2065	VISIT_END( Designation, node );
2066	}
2067
2068	//--------------------------------------------------------------------------
2069	// SingleInit
2070	template< typename core_t >
2071	const ast::Init * ast::Pass< core_t >::visit( const ast::SingleInit * node ) {
2072	VISIT_START( node );
2073
2074	if ( __visit_children() ) {
2075	maybe_accept_top( node, &SingleInit::value );
2076	}
2077
2078	VISIT_END( Init, node );
2079	}
2080
2081	//--------------------------------------------------------------------------
2082	// ListInit
2083	template< typename core_t >
2084	const ast::Init * ast::Pass< core_t >::visit( const ast::ListInit * node ) {
2085	VISIT_START( node );
2086
2087	if ( __visit_children() ) {
2088	maybe_accept( node, &ListInit::designations );
2089	maybe_accept( node, &ListInit::initializers );
2090	}
2091
2092	VISIT_END( Init, node );
2093	}
2094
2095	//--------------------------------------------------------------------------
2096	// ConstructorInit
2097	template< typename core_t >
2098	const ast::Init * ast::Pass< core_t >::visit( const ast::ConstructorInit * node ) {
2099	VISIT_START( node );
2100
2101	if ( __visit_children() ) {
2102	maybe_accept( node, &ConstructorInit::ctor );
2103	maybe_accept( node, &ConstructorInit::dtor );
2104	maybe_accept( node, &ConstructorInit::init );
2105	}
2106
2107	VISIT_END( Init, node );
2108	}
2109
2110	//--------------------------------------------------------------------------
2111	// Attribute
2112	template< typename core_t >
2113	const ast::Attribute * ast::Pass< core_t >::visit( const ast::Attribute * node ) {
2114	VISIT_START( node );
2115
2116	if ( __visit_children() ) {
2117	maybe_accept( node, &Attribute::params );
2118	}
2119
2120	VISIT_END( Attribute, node );
2121	}
2122
2123	//--------------------------------------------------------------------------
2124	// TypeSubstitution
2125	template< typename core_t >
2126	const ast::TypeSubstitution * ast::Pass< core_t >::visit( const ast::TypeSubstitution * node ) {
2127	VISIT_START( node );
2128
2129	if ( __visit_children() ) {
2130	bool mutated = false;
2131	ast::TypeSubstitution::TypeMap new_map;
2132	for ( const auto & p : node->typeMap ) {
2133	guard_symtab guard { *this };
2134	auto new_node = p.second->accept( *this );
2135	if (new_node != p.second) mutated = true;
2136	new_map.insert({ p.first, new_node });
2137	}
2138	if (mutated) {
2139	auto new_node = __pass::mutate<core_t>( node );
2140	new_node->typeMap.swap( new_map );
2141	node = new_node;
2142	}
2143	}
2144
2145	VISIT_END( TypeSubstitution, node );
2146	}
2147
2148	#undef __pedantic_pass_assertf
2149	#undef __pedantic_pass_assert
2150	#undef VISIT_START
2151	#undef VISIT_END

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