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source: src/AST/Pass.impl.hpp @ c16cc99

Last change on this file since c16cc99 was 148f836e, checked in by Andrew Beach <ajbeach@…>, 17 months ago
Cleaned up namespacing, indentation and whitespacing in Pass.impl.hpp.
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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 {
56	template<typename node_t>
57	node_t * shallowCopy( const node_t * node );
58
59	namespace __pass {
60	// Check if this is either a null pointer or a pointer to an empty container
61	template<typename T>
62	static inline bool empty( T * ptr ) {
63	return !ptr \|\| ptr->empty();
64	}
65
66	template< typename core_t, typename node_t >
67	static inline node_t* mutate(const node_t *node) {
68	return std::is_base_of<PureVisitor, core_t>::value ? ::ast::shallowCopy(node) : ::ast::mutate(node);
69	}
70
71	//------------------------------
72	template<typename it_t, template <class...> class container_t>
73	static inline void take_all( it_t it, container_t<ast::ptr<ast::Decl>> * decls, bool * mutated = nullptr ) {
74	if ( empty( decls ) ) return;
75
76	std::transform(decls->begin(), decls->end(), it, [](const ast::Decl * decl) -> auto {
77	return new DeclStmt( decl->location, decl );
78	});
79	decls->clear();
80	if ( mutated ) *mutated = true;
81	}
82
83	template<typename it_t, template <class...> class container_t>
84	static inline void take_all( it_t it, container_t<ast::ptr<ast::Stmt>> * stmts, bool * mutated = nullptr ) {
85	if ( empty( stmts ) ) return;
86
87	std::move(stmts->begin(), stmts->end(), it);
88	stmts->clear();
89	if ( mutated ) *mutated = true;
90	}
91
92	//------------------------------
93	/// Check if should be skipped, different for pointers and containers
94	template<typename node_t>
95	bool skip( const ast::ptr<node_t> & val ) {
96	return !val;
97	}
98
99	template< template <class...> class container_t, typename node_t >
100	bool skip( const container_t<ast::ptr< node_t >> & val ) {
101	return val.empty();
102	}
103
104	//------------------------------
105	/// Get the value to visit, different for pointers and containers
106	template<typename node_t>
107	auto get( const ast::ptr<node_t> & val, int ) -> decltype(val.get()) {
108	return val.get();
109	}
110
111	template<typename node_t>
112	const node_t & get( const node_t & val, long ) {
113	return val;
114	}
115
116	//------------------------------
117	/// Check if value was mutated, different for pointers and containers
118	template<typename lhs_t, typename rhs_t>
119	bool differs( const lhs_t * old_val, const rhs_t * new_val ) {
120	return old_val != new_val;
121	}
122
123	template< template <class...> class container_t, typename node_t >
124	bool differs( const container_t<ast::ptr< node_t >> &, const container_t<ast::ptr< node_t >> & new_val ) {
125	return !new_val.empty();
126	}
127	}
128	}
129
130	template< typename core_t >
131	template< typename node_t >
132	auto ast::Pass< core_t >::call_accept( const node_t * node ) ->
133	typename ast::Pass< core_t >::template generic_call_accept_result<node_t>::type
134	{
135	__pedantic_pass_assert( __visit_children() );
136	__pedantic_pass_assert( node );
137
138	static_assert( !std::is_base_of<ast::Expr, node_t>::value, "ERROR" );
139	static_assert( !std::is_base_of<ast::Stmt, node_t>::value, "ERROR" );
140
141	auto nval = node->accept( *this );
142	__pass::result1<
143	typename std::remove_pointer< decltype( node->accept(*this) ) >::type
144	> res;
145	res.differs = nval != node;
146	res.value = nval;
147	return res;
148	}
149
150	template< typename core_t >
151	ast::__pass::template result1<ast::Expr> ast::Pass< core_t >::call_accept( const ast::Expr * expr ) {
152	__pedantic_pass_assert( __visit_children() );
153	__pedantic_pass_assert( expr );
154
155	auto nval = expr->accept( *this );
156	return { nval != expr, nval };
157	}
158
159	template< typename core_t >
160	ast::__pass::template result1<ast::Stmt> ast::Pass< core_t >::call_accept( const ast::Stmt * stmt ) {
161	__pedantic_pass_assert( __visit_children() );
162	__pedantic_pass_assert( stmt );
163
164	const ast::Stmt * nval = stmt->accept( *this );
165	return { nval != stmt, nval };
166	}
167
168	template< typename core_t >
169	ast::__pass::template result1<ast::Expr> ast::Pass< core_t >::call_accept_top( const ast::Expr * expr ) {
170	__pedantic_pass_assert( __visit_children() );
171	__pedantic_pass_assert( expr );
172
173	const ast::TypeSubstitution ** typeSubs_ptr = __pass::typeSubs( core, 0 );
174	if ( typeSubs_ptr && expr->env ) {
175	*typeSubs_ptr = expr->env;
176	}
177
178	auto nval = expr->accept( *this );
179	return { nval != expr, nval };
180	}
181
182	template< typename core_t >
183	ast::__pass::template result1<ast::Stmt> ast::Pass< core_t >::call_accept_as_compound( const ast::Stmt * stmt ) {
184	__pedantic_pass_assert( __visit_children() );
185	__pedantic_pass_assert( stmt );
186
187	// add a few useful symbols to the scope
188	using __pass::empty;
189
190	// get the stmts/decls that will need to be spliced in
191	auto stmts_before = __pass::stmtsToAddBefore( core, 0 );
192	auto stmts_after = __pass::stmtsToAddAfter ( core, 0 );
193	auto decls_before = __pass::declsToAddBefore( core, 0 );
194	auto decls_after = __pass::declsToAddAfter ( core, 0 );
195
196	// These may be modified by subnode but most be restored once we exit this statemnet.
197	ValueGuardPtr< const ast::TypeSubstitution * > __old_env ( __pass::typeSubs( core, 0 ) );
198	ValueGuardPtr< typename std::remove_pointer< decltype(stmts_before) >::type > __old_decls_before( stmts_before );
199	ValueGuardPtr< typename std::remove_pointer< decltype(stmts_after ) >::type > __old_decls_after ( stmts_after );
200	ValueGuardPtr< typename std::remove_pointer< decltype(decls_before) >::type > __old_stmts_before( decls_before );
201	ValueGuardPtr< typename std::remove_pointer< decltype(decls_after ) >::type > __old_stmts_after ( decls_after );
202
203	// Now is the time to actually visit the node
204	const ast::Stmt * nstmt = stmt->accept( *this );
205
206	// If the pass doesn't want to add anything then we are done
207	if ( empty(stmts_before) && empty(stmts_after) && empty(decls_before) && empty(decls_after) ) {
208	return { nstmt != stmt, nstmt };
209	}
210
211	// Make sure that it is either adding statements or declartions but not both
212	// this is because otherwise the order would be awkward to predict
213	assert(( empty( stmts_before ) && empty( stmts_after ))
214	\|\| ( empty( decls_before ) && empty( decls_after )) );
215
216	// Create a new Compound Statement to hold the new decls/stmts
217	ast::CompoundStmt * compound = new ast::CompoundStmt( stmt->location );
218
219	// Take all the declarations that go before
220	__pass::take_all( std::back_inserter( compound->kids ), decls_before );
221	__pass::take_all( std::back_inserter( compound->kids ), stmts_before );
222
223	// Insert the original declaration
224	compound->kids.emplace_back( nstmt );
225
226	// Insert all the declarations that go before
227	__pass::take_all( std::back_inserter( compound->kids ), decls_after );
228	__pass::take_all( std::back_inserter( compound->kids ), stmts_after );
229
230	return { true, compound };
231	}
232
233	template< typename core_t >
234	template< template <class...> class container_t >
235	ast::__pass::template resultNstmt<container_t> ast::Pass< core_t >::call_accept( const container_t< ptr<Stmt> > & statements ) {
236	__pedantic_pass_assert( __visit_children() );
237	if ( statements.empty() ) return {};
238
239	// We are going to aggregate errors for all these statements
240	SemanticErrorException errors;
241
242	// add a few useful symbols to the scope
243	using __pass::empty;
244
245	// get the stmts/decls that will need to be spliced in
246	auto stmts_before = __pass::stmtsToAddBefore( core, 0 );
247	auto stmts_after = __pass::stmtsToAddAfter ( core, 0 );
248	auto decls_before = __pass::declsToAddBefore( core, 0 );
249	auto decls_after = __pass::declsToAddAfter ( core, 0 );
250
251	// These may be modified by subnode but most be restored once we exit this statemnet.
252	ValueGuardPtr< typename std::remove_pointer< decltype(stmts_before) >::type > __old_decls_before( stmts_before );
253	ValueGuardPtr< typename std::remove_pointer< decltype(stmts_after ) >::type > __old_decls_after ( stmts_after );
254	ValueGuardPtr< typename std::remove_pointer< decltype(decls_before) >::type > __old_stmts_before( decls_before );
255	ValueGuardPtr< typename std::remove_pointer< decltype(decls_after ) >::type > __old_stmts_after ( decls_after );
256
257	// update pass statitistics
258	pass_visitor_stats.depth++;
259	pass_visitor_stats.max->push(pass_visitor_stats.depth);
260	pass_visitor_stats.avg->push(pass_visitor_stats.depth);
261
262	__pass::resultNstmt<container_t> new_kids;
263	for ( auto value : enumerate( statements ) ) {
264	try {
265	size_t i = value.idx;
266	const Stmt * stmt = value.val;
267	__pedantic_pass_assert( stmt );
268	const ast::Stmt * new_stmt = stmt->accept( *this );
269	assert( new_stmt );
270	if ( new_stmt != stmt ) { new_kids.differs = true; }
271
272	// Make sure that it is either adding statements or declartions but not both
273	// this is because otherwise the order would be awkward to predict
274	assert(( empty( stmts_before ) && empty( stmts_after ))
275	\|\| ( empty( decls_before ) && empty( decls_after )) );
276
277	// Take all the statements which should have gone after, N/A for first iteration
278	new_kids.take_all( decls_before );
279	new_kids.take_all( stmts_before );
280
281	// Now add the statement if there is one
282	if ( new_stmt != stmt ) {
283	new_kids.values.emplace_back( new_stmt, i, false );
284	} else {
285	new_kids.values.emplace_back( nullptr, i, true );
286	}
287
288	// Take all the declarations that go before
289	new_kids.take_all( decls_after );
290	new_kids.take_all( stmts_after );
291	} catch ( SemanticErrorException &e ) {
292	errors.append( e );
293	}
294	}
295	pass_visitor_stats.depth--;
296	if ( !errors.isEmpty() ) { throw errors; }
297
298	return new_kids;
299	}
300
301	template< typename core_t >
302	template< template <class...> class container_t, typename node_t >
303	ast::__pass::template resultN<container_t, node_t> ast::Pass< core_t >::call_accept( const container_t< ast::ptr<node_t> > & container ) {
304	__pedantic_pass_assert( __visit_children() );
305	if ( container.empty() ) return {};
306	SemanticErrorException errors;
307
308	pass_visitor_stats.depth++;
309	pass_visitor_stats.max->push(pass_visitor_stats.depth);
310	pass_visitor_stats.avg->push(pass_visitor_stats.depth);
311
312	bool mutated = false;
313	container_t<ptr<node_t>> new_kids;
314	for ( const node_t * node : container ) {
315	try {
316	__pedantic_pass_assert( node );
317	const node_t * new_stmt = strict_dynamic_cast< const node_t * >( node->accept( *this ) );
318	if ( new_stmt != node ) {
319	mutated = true;
320	new_kids.emplace_back( new_stmt );
321	} else {
322	new_kids.emplace_back( nullptr );
323	}
324	} catch ( SemanticErrorException &e ) {
325	errors.append( e );
326	}
327	}
328
329	__pedantic_pass_assert( new_kids.size() == container.size() );
330	pass_visitor_stats.depth--;
331	if ( !errors.isEmpty() ) { throw errors; }
332
333	return ast::__pass::resultN<container_t, node_t>{ mutated, new_kids };
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(
339	const node_t * & parent,
340	field_t super_t::*field
341	) {
342	static_assert( std::is_base_of<super_t, node_t>::value, "Error deducing member object" );
343
344	if ( __pass::skip( parent->*field ) ) return;
345	const auto & old_val = __pass::get(parent->*field, 0);
346
347	static_assert( !std::is_same<const ast::Node * &, decltype(old_val)>::value, "ERROR" );
348
349	auto new_val = call_accept( old_val );
350
351	static_assert( !std::is_same<const ast::Node , decltype(new_val)>::value / \|\| std::is_same<int, decltype(old_val)>::value */, "ERROR" );
352
353	if ( new_val.differs ) {
354	auto new_parent = __pass::mutate<core_t>(parent);
355	new_val.apply(new_parent, field);
356	parent = new_parent;
357	}
358	}
359
360	template< typename core_t >
361	template<typename node_t, typename super_t, typename field_t>
362	void ast::Pass< core_t >::maybe_accept_top(
363	const node_t * & parent,
364	field_t super_t::*field
365	) {
366	static_assert( std::is_base_of<super_t, node_t>::value, "Error deducing member object" );
367
368	if ( __pass::skip( parent->*field ) ) return;
369	const auto & old_val = __pass::get(parent->*field, 0);
370
371	static_assert( !std::is_same<const ast::Node * &, decltype(old_val)>::value, "ERROR" );
372
373	auto new_val = call_accept_top( old_val );
374
375	static_assert( !std::is_same<const ast::Node , decltype(new_val)>::value / \|\| std::is_same<int, decltype(old_val)>::value */, "ERROR" );
376
377	if ( new_val.differs ) {
378	auto new_parent = __pass::mutate<core_t>(parent);
379	new_val.apply(new_parent, field);
380	parent = new_parent;
381	}
382	}
383
384	template< typename core_t >
385	template<typename node_t, typename super_t, typename field_t>
386	void ast::Pass< core_t >::maybe_accept_as_compound(
387	const node_t * & parent,
388	field_t super_t::*child
389	) {
390	static_assert( std::is_base_of<super_t, node_t>::value, "Error deducing member object" );
391
392	if ( __pass::skip( parent->*child ) ) return;
393	const auto & old_val = __pass::get(parent->*child, 0);
394
395	static_assert( !std::is_same<const ast::Node * &, decltype(old_val)>::value, "ERROR" );
396
397	auto new_val = call_accept_as_compound( old_val );
398
399	static_assert( !std::is_same<const ast::Node *, decltype(new_val)>::value \|\| std::is_same<int, decltype(old_val)>::value, "ERROR" );
400
401	if ( new_val.differs ) {
402	auto new_parent = __pass::mutate<core_t>(parent);
403	new_val.apply( new_parent, child );
404	parent = new_parent;
405	}
406	}
407
408	//------------------------------------------------------------------------------------------------------------------------------------------------------------------------
409	//========================================================================================================================================================================
410	//========================================================================================================================================================================
411	//========================================================================================================================================================================
412	//========================================================================================================================================================================
413	//========================================================================================================================================================================
414	//------------------------------------------------------------------------------------------------------------------------------------------------------------------------
415
416	template< typename core_t >
417	inline void ast::accept_all( std::list< ast::ptr<ast::Decl> > & decls, ast::Pass< core_t > & visitor ) {
418	// We are going to aggregate errors for all these statements
419	SemanticErrorException errors;
420
421	// add a few useful symbols to the scope
422	using __pass::empty;
423
424	// get the stmts/decls that will need to be spliced in
425	auto decls_before = __pass::declsToAddBefore( visitor.core, 0);
426	auto decls_after = __pass::declsToAddAfter ( visitor.core, 0);
427
428	// update pass statitistics
429	pass_visitor_stats.depth++;
430	pass_visitor_stats.max->push(pass_visitor_stats.depth);
431	pass_visitor_stats.avg->push(pass_visitor_stats.depth);
432
433	for ( std::list< ast::ptr<ast::Decl> >::iterator i = decls.begin(); ; ++i ) {
434	// splice in new declarations after previous decl
435	if ( !empty( decls_after ) ) { decls.splice( i, *decls_after ); }
436
437	if ( i == decls.end() ) break;
438
439	try {
440	// run visitor on declaration
441	ast::ptr<ast::Decl> & node = *i;
442	assert( node );
443	node = node->accept( visitor );
444	}
445	catch( SemanticErrorException &e ) {
446	if (__pass::on_error (visitor.core, *i, 0))
447	errors.append( e );
448	}
449
450	// splice in new declarations before current decl
451	if ( !empty( decls_before ) ) { decls.splice( i, *decls_before ); }
452	}
453	pass_visitor_stats.depth--;
454	if ( !errors.isEmpty() ) { throw errors; }
455	}
456
457	template< typename core_t >
458	inline void ast::accept_all( ast::TranslationUnit & unit, ast::Pass< core_t > & visitor ) {
459	if ( auto ptr = __pass::translation_unit::get_cptr( visitor.core, 0 ) ) {
460	ValueGuard<const TranslationUnit > guard( ptr );
461	*ptr = &unit;
462	return ast::accept_all( unit.decls, visitor );
463	} else {
464	return ast::accept_all( unit.decls, visitor );
465	}
466	}
467
468	// A NOTE ON THE ORDER OF TRAVERSAL
469	//
470	// Types and typedefs have their base types visited before they are added to the type table. This is ok, since there is
471	// no such thing as a recursive type or typedef.
472	//
473	// typedef struct { T *x; } T; // never allowed
474	//
475	// for structs/unions, it is possible to have recursion, so the decl should be added as if it's incomplete to begin, the
476	// members are traversed, and then the complete type should be added (assuming the type is completed by this particular
477	// declaration).
478	//
479	// struct T { struct T *x; }; // allowed
480	//
481	// It is important to add the complete type to the symbol table after the members/base has been traversed, since that
482	// traversal may modify the definition of the type and these modifications should be visible when the symbol table is
483	// queried later in this pass.
484
485	//--------------------------------------------------------------------------
486	// ObjectDecl
487	template< typename core_t >
488	const ast::DeclWithType * ast::Pass< core_t >::visit( const ast::ObjectDecl * node ) {
489	VISIT_START( node );
490
491	if ( __visit_children() ) {
492	{
493	guard_symtab guard { *this };
494	maybe_accept( node, &ObjectDecl::type );
495	}
496	maybe_accept( node, &ObjectDecl::init );
497	maybe_accept( node, &ObjectDecl::bitfieldWidth );
498	maybe_accept( node, &ObjectDecl::attributes );
499	}
500
501	__pass::symtab::addId( core, 0, node );
502
503	VISIT_END( DeclWithType, node );
504	}
505
506	//--------------------------------------------------------------------------
507	// FunctionDecl
508	template< typename core_t >
509	const ast::DeclWithType * ast::Pass< core_t >::visit( const ast::FunctionDecl * node ) {
510	VISIT_START( node );
511
512	__pass::symtab::addId( core, 0, node );
513
514	if ( __visit_children() ) {
515	maybe_accept( node, &FunctionDecl::withExprs );
516	}
517	{
518	// with clause introduces a level of scope (for the with expression members).
519	// with clause exprs are added to the symbol table before parameters so that parameters
520	// shadow with exprs and not the other way around.
521	guard_symtab guard { *this };
522	__pass::symtab::addWith( core, 0, node->withExprs, node );
523	{
524	guard_symtab guard { *this };
525	// implicit add __func__ identifier as specified in the C manual 6.4.2.2
526	// This is a C name and so has C linkage.
527	static ast::ptr< ast::ObjectDecl > func{ new ast::ObjectDecl{
528	CodeLocation{}, "__func__",
529	new ast::ArrayType{
530	new ast::BasicType{ ast::BasicType::Char, ast::CV::Const },
531	nullptr, VariableLen, DynamicDim
532	},
533	nullptr,
534	ast::Storage::Classes(),
535	ast::Linkage::C,
536	} };
537	__pass::symtab::addId( core, 0, func );
538	if ( __visit_children() ) {
539	maybe_accept( node, &FunctionDecl::type_params );
540	maybe_accept( node, &FunctionDecl::assertions );
541	maybe_accept( node, &FunctionDecl::params );
542	maybe_accept( node, &FunctionDecl::returns );
543	maybe_accept( node, &FunctionDecl::type );
544	maybe_accept( node, &FunctionDecl::attributes );
545	// First remember that we are now within a function.
546	ValueGuard< bool > oldInFunction( inFunction );
547	inFunction = true;
548	// The function body needs to have the same scope as parameters.
549	// A CompoundStmt will not enter a new scope if atFunctionTop is true.
550	ValueGuard< bool > oldAtFunctionTop( atFunctionTop );
551	atFunctionTop = true;
552	maybe_accept( node, &FunctionDecl::stmts );
553	}
554	}
555	}
556
557	VISIT_END( DeclWithType, node );
558	}
559
560	//--------------------------------------------------------------------------
561	// StructDecl
562	template< typename core_t >
563	const ast::Decl * ast::Pass< core_t >::visit( const ast::StructDecl * node ) {
564	VISIT_START( node );
565
566	// make up a forward declaration and add it before processing the members
567	// needs to be on the heap because addStruct saves the pointer
568	__pass::symtab::addStructFwd( core, 0, node );
569
570	if ( __visit_children() ) {
571	guard_symtab guard { * this };
572	maybe_accept( node, &StructDecl::params );
573	maybe_accept( node, &StructDecl::members );
574	maybe_accept( node, &StructDecl::attributes );
575	}
576
577	// this addition replaces the forward declaration
578	__pass::symtab::addStruct( core, 0, node );
579
580	VISIT_END( Decl, node );
581	}
582
583	//--------------------------------------------------------------------------
584	// UnionDecl
585	template< typename core_t >
586	const ast::Decl * ast::Pass< core_t >::visit( const ast::UnionDecl * node ) {
587	VISIT_START( node );
588
589	// make up a forward declaration and add it before processing the members
590	__pass::symtab::addUnionFwd( core, 0, node );
591
592	if ( __visit_children() ) {
593	guard_symtab guard { * this };
594	maybe_accept( node, &UnionDecl::params );
595	maybe_accept( node, &UnionDecl::members );
596	maybe_accept( node, &UnionDecl::attributes );
597	}
598
599	__pass::symtab::addUnion( core, 0, node );
600
601	VISIT_END( Decl, node );
602	}
603
604	//--------------------------------------------------------------------------
605	// EnumDecl
606	template< typename core_t >
607	const ast::Decl * ast::Pass< core_t >::visit( const ast::EnumDecl * node ) {
608	VISIT_START( node );
609
610	__pass::symtab::addEnum( core, 0, node );
611
612	if ( __visit_children() ) {
613	if ( node->hide == ast::EnumDecl::EnumHiding::Hide ) {
614	guard_symtab guard { *this };
615	maybe_accept( node, &EnumDecl::base );
616	maybe_accept( node, &EnumDecl::params );
617	maybe_accept( node, &EnumDecl::members );
618	maybe_accept( node, &EnumDecl::attributes );
619	} else {
620	maybe_accept( node, &EnumDecl::base );
621	maybe_accept( node, &EnumDecl::params );
622	maybe_accept( node, &EnumDecl::members );
623	maybe_accept( node, &EnumDecl::attributes );
624	}
625	}
626
627	VISIT_END( Decl, node );
628	}
629
630	//--------------------------------------------------------------------------
631	// TraitDecl
632	template< typename core_t >
633	const ast::Decl * ast::Pass< core_t >::visit( const ast::TraitDecl * node ) {
634	VISIT_START( node );
635
636	if ( __visit_children() ) {
637	guard_symtab guard { *this };
638	maybe_accept( node, &TraitDecl::params );
639	maybe_accept( node, &TraitDecl::members );
640	maybe_accept( node, &TraitDecl::attributes );
641	}
642
643	__pass::symtab::addTrait( core, 0, node );
644
645	VISIT_END( Decl, node );
646	}
647
648	//--------------------------------------------------------------------------
649	// TypeDecl
650	template< typename core_t >
651	const ast::Decl * ast::Pass< core_t >::visit( const ast::TypeDecl * node ) {
652	VISIT_START( node );
653
654	if ( __visit_children() ) {
655	guard_symtab guard { *this };
656	maybe_accept( node, &TypeDecl::base );
657	}
658
659	// see A NOTE ON THE ORDER OF TRAVERSAL, above
660	// note that assertions come after the type is added to the symtab, since they are not part of the type proper
661	// and may depend on the type itself
662	__pass::symtab::addType( core, 0, node );
663
664	if ( __visit_children() ) {
665	maybe_accept( node, &TypeDecl::assertions );
666
667	{
668	guard_symtab guard { *this };
669	maybe_accept( node, &TypeDecl::init );
670	}
671	}
672
673	VISIT_END( Decl, node );
674	}
675
676	//--------------------------------------------------------------------------
677	// TypedefDecl
678	template< typename core_t >
679	const ast::Decl * ast::Pass< core_t >::visit( const ast::TypedefDecl * node ) {
680	VISIT_START( node );
681
682	if ( __visit_children() ) {
683	guard_symtab guard { *this };
684	maybe_accept( node, &TypedefDecl::base );
685	}
686
687	__pass::symtab::addType( core, 0, node );
688
689	if ( __visit_children() ) {
690	maybe_accept( node, &TypedefDecl::assertions );
691	}
692
693	VISIT_END( Decl, node );
694	}
695
696	//--------------------------------------------------------------------------
697	// AsmDecl
698	template< typename core_t >
699	const ast::AsmDecl * ast::Pass< core_t >::visit( const ast::AsmDecl * node ) {
700	VISIT_START( node );
701
702	if ( __visit_children() ) {
703	maybe_accept( node, &AsmDecl::stmt );
704	}
705
706	VISIT_END( AsmDecl, node );
707	}
708
709	//--------------------------------------------------------------------------
710	// DirectiveDecl
711	template< typename core_t >
712	const ast::DirectiveDecl * ast::Pass< core_t >::visit( const ast::DirectiveDecl * node ) {
713	VISIT_START( node );
714
715	if ( __visit_children() ) {
716	maybe_accept( node, &DirectiveDecl::stmt );
717	}
718
719	VISIT_END( DirectiveDecl, node );
720	}
721
722	//--------------------------------------------------------------------------
723	// StaticAssertDecl
724	template< typename core_t >
725	const ast::StaticAssertDecl * ast::Pass< core_t >::visit( const ast::StaticAssertDecl * node ) {
726	VISIT_START( node );
727
728	if ( __visit_children() ) {
729	maybe_accept_top( node, &StaticAssertDecl::cond );
730	maybe_accept( node, &StaticAssertDecl::msg );
731	}
732
733	VISIT_END( StaticAssertDecl, node );
734	}
735
736	//--------------------------------------------------------------------------
737	// InlineMemberDecl
738	template< typename core_t >
739	const ast::DeclWithType * ast::Pass< core_t >::visit( const ast::InlineMemberDecl * node ) {
740	VISIT_START( node );
741
742	if ( __visit_children() ) {
743	{
744	guard_symtab guard { *this };
745	maybe_accept( node, &InlineMemberDecl::type );
746	}
747	}
748
749	VISIT_END( DeclWithType, node );
750	}
751
752	//--------------------------------------------------------------------------
753	// CompoundStmt
754	template< typename core_t >
755	const ast::CompoundStmt * ast::Pass< core_t >::visit( const ast::CompoundStmt * node ) {
756	VISIT_START( node );
757
758	if ( __visit_children() ) {
759	// Do not enter (or leave) a new symbol table scope if atFunctionTop.
760	// But always enter (and leave) a new general scope.
761	if ( atFunctionTop ) {
762	ValueGuard< bool > guard1( atFunctionTop );
763	atFunctionTop = false;
764	guard_scope guard2( *this );
765	maybe_accept( node, &CompoundStmt::kids );
766	} else {
767	guard_symtab guard1( *this );
768	guard_scope guard2( *this );
769	maybe_accept( node, &CompoundStmt::kids );
770	}
771	}
772
773	VISIT_END( CompoundStmt, node );
774	}
775
776	//--------------------------------------------------------------------------
777	// ExprStmt
778	template< typename core_t >
779	const ast::Stmt * ast::Pass< core_t >::visit( const ast::ExprStmt * node ) {
780	VISIT_START( node );
781
782	if ( __visit_children() ) {
783	maybe_accept_top( node, &ExprStmt::expr );
784	}
785
786	VISIT_END( Stmt, node );
787	}
788
789	//--------------------------------------------------------------------------
790	// AsmStmt
791	template< typename core_t >
792	const ast::Stmt * ast::Pass< core_t >::visit( const ast::AsmStmt * node ) {
793	VISIT_START( node )
794
795	if ( __visit_children() ) {
796	maybe_accept( node, &AsmStmt::instruction );
797	maybe_accept( node, &AsmStmt::output );
798	maybe_accept( node, &AsmStmt::input );
799	maybe_accept( node, &AsmStmt::clobber );
800	}
801
802	VISIT_END( Stmt, node );
803	}
804
805	//--------------------------------------------------------------------------
806	// DirectiveStmt
807	template< typename core_t >
808	const ast::Stmt * ast::Pass< core_t >::visit( const ast::DirectiveStmt * node ) {
809	VISIT_START( node )
810
811	VISIT_END( Stmt, node );
812	}
813
814	//--------------------------------------------------------------------------
815	// IfStmt
816	template< typename core_t >
817	const ast::Stmt * ast::Pass< core_t >::visit( const ast::IfStmt * node ) {
818	VISIT_START( node );
819
820	if ( __visit_children() ) {
821	// if statements introduce a level of scope (for the initialization)
822	guard_symtab guard { *this };
823	maybe_accept( node, &IfStmt::inits );
824	maybe_accept_top( node, &IfStmt::cond );
825	maybe_accept_as_compound( node, &IfStmt::then );
826	maybe_accept_as_compound( node, &IfStmt::else_ );
827	}
828
829	VISIT_END( Stmt, node );
830	}
831
832	//--------------------------------------------------------------------------
833	// WhileDoStmt
834	template< typename core_t >
835	const ast::Stmt * ast::Pass< core_t >::visit( const ast::WhileDoStmt * node ) {
836	VISIT_START( node );
837
838	if ( __visit_children() ) {
839	// while statements introduce a level of scope (for the initialization)
840	guard_symtab guard { *this };
841	maybe_accept( node, &WhileDoStmt::inits );
842	maybe_accept_top( node, &WhileDoStmt::cond );
843	maybe_accept_as_compound( node, &WhileDoStmt::body );
844	}
845
846	VISIT_END( Stmt, node );
847	}
848
849	//--------------------------------------------------------------------------
850	// ForStmt
851	template< typename core_t >
852	const ast::Stmt * ast::Pass< core_t >::visit( const ast::ForStmt * node ) {
853	VISIT_START( node );
854
855	if ( __visit_children() ) {
856	// for statements introduce a level of scope (for the initialization)
857	guard_symtab guard { *this };
858	// xxx - old ast does not create WithStmtsToAdd scope for loop inits. should revisit this later.
859	maybe_accept( node, &ForStmt::inits );
860	maybe_accept_top( node, &ForStmt::cond );
861	maybe_accept_top( node, &ForStmt::inc );
862	maybe_accept_as_compound( node, &ForStmt::body );
863	}
864
865	VISIT_END( Stmt, node );
866	}
867
868	//--------------------------------------------------------------------------
869	// SwitchStmt
870	template< typename core_t >
871	const ast::Stmt * ast::Pass< core_t >::visit( const ast::SwitchStmt * node ) {
872	VISIT_START( node );
873
874	if ( __visit_children() ) {
875	maybe_accept_top( node, &SwitchStmt::cond );
876	maybe_accept( node, &SwitchStmt::cases );
877	}
878
879	VISIT_END( Stmt, node );
880	}
881
882	//--------------------------------------------------------------------------
883	// CaseClause
884	template< typename core_t >
885	const ast::CaseClause * ast::Pass< core_t >::visit( const ast::CaseClause * node ) {
886	VISIT_START( node );
887
888	if ( __visit_children() ) {
889	maybe_accept_top( node, &CaseClause::cond );
890	maybe_accept( node, &CaseClause::stmts );
891	}
892
893	VISIT_END( CaseClause, node );
894	}
895
896	//--------------------------------------------------------------------------
897	// BranchStmt
898	template< typename core_t >
899	const ast::Stmt * ast::Pass< core_t >::visit( const ast::BranchStmt * node ) {
900	VISIT_START( node );
901	VISIT_END( Stmt, node );
902	}
903
904	//--------------------------------------------------------------------------
905	// ReturnStmt
906	template< typename core_t >
907	const ast::Stmt * ast::Pass< core_t >::visit( const ast::ReturnStmt * node ) {
908	VISIT_START( node );
909
910	if ( __visit_children() ) {
911	maybe_accept_top( node, &ReturnStmt::expr );
912	}
913
914	VISIT_END( Stmt, node );
915	}
916
917	//--------------------------------------------------------------------------
918	// ThrowStmt
919	template< typename core_t >
920	const ast::Stmt * ast::Pass< core_t >::visit( const ast::ThrowStmt * node ) {
921	VISIT_START( node );
922
923	if ( __visit_children() ) {
924	maybe_accept( node, &ThrowStmt::expr );
925	maybe_accept( node, &ThrowStmt::target );
926	}
927
928	VISIT_END( Stmt, node );
929	}
930
931	//--------------------------------------------------------------------------
932	// TryStmt
933	template< typename core_t >
934	const ast::Stmt * ast::Pass< core_t >::visit( const ast::TryStmt * node ) {
935	VISIT_START( node );
936
937	if ( __visit_children() ) {
938	maybe_accept( node, &TryStmt::body );
939	maybe_accept( node, &TryStmt::handlers );
940	maybe_accept( node, &TryStmt::finally );
941	}
942
943	VISIT_END( Stmt, node );
944	}
945
946	//--------------------------------------------------------------------------
947	// CatchClause
948	template< typename core_t >
949	const ast::CatchClause * ast::Pass< core_t >::visit( const ast::CatchClause * node ) {
950	VISIT_START( node );
951
952	if ( __visit_children() ) {
953	// catch statements introduce a level of scope (for the caught exception)
954	guard_symtab guard { *this };
955	maybe_accept( node, &CatchClause::decl );
956	maybe_accept_top( node, &CatchClause::cond );
957	maybe_accept_as_compound( node, &CatchClause::body );
958	}
959
960	VISIT_END( CatchClause, node );
961	}
962
963	//--------------------------------------------------------------------------
964	// FinallyClause
965	template< typename core_t >
966	const ast::FinallyClause * ast::Pass< core_t >::visit( const ast::FinallyClause * node ) {
967	VISIT_START( node );
968
969	if ( __visit_children() ) {
970	maybe_accept( node, &FinallyClause::body );
971	}
972
973	VISIT_END( FinallyClause, node );
974	}
975
976	//--------------------------------------------------------------------------
977	// FinallyStmt
978	template< typename core_t >
979	const ast::Stmt * ast::Pass< core_t >::visit( const ast::SuspendStmt * node ) {
980	VISIT_START( node );
981
982	if ( __visit_children() ) {
983	maybe_accept( node, &SuspendStmt::then );
984	}
985
986	VISIT_END( Stmt, node );
987	}
988
989	//--------------------------------------------------------------------------
990	// WhenClause
991	template< typename core_t >
992	const ast::WhenClause * ast::Pass< core_t >::visit( const ast::WhenClause * node ) {
993	VISIT_START( node );
994
995	if ( __visit_children() ) {
996	maybe_accept( node, &WhenClause::target );
997	maybe_accept( node, &WhenClause::stmt );
998	maybe_accept( node, &WhenClause::when_cond );
999	}
1000
1001	VISIT_END( WhenClause, node );
1002	}
1003
1004	//--------------------------------------------------------------------------
1005	// WaitForStmt
1006	template< typename core_t >
1007	const ast::Stmt * ast::Pass< core_t >::visit( const ast::WaitForStmt * node ) {
1008	VISIT_START( node );
1009
1010	if ( __visit_children() ) {
1011	maybe_accept( node, &WaitForStmt::clauses );
1012	maybe_accept( node, &WaitForStmt::timeout_time );
1013	maybe_accept( node, &WaitForStmt::timeout_stmt );
1014	maybe_accept( node, &WaitForStmt::timeout_cond );
1015	maybe_accept( node, &WaitForStmt::else_stmt );
1016	maybe_accept( node, &WaitForStmt::else_cond );
1017	}
1018
1019	VISIT_END( Stmt, node );
1020	}
1021
1022	//--------------------------------------------------------------------------
1023	// WaitForClause
1024	template< typename core_t >
1025	const ast::WaitForClause * ast::Pass< core_t >::visit( const ast::WaitForClause * node ) {
1026	VISIT_START( node );
1027
1028	if ( __visit_children() ) {
1029	maybe_accept( node, &WaitForClause::target );
1030	maybe_accept( node, &WaitForClause::target_args );
1031	maybe_accept( node, &WaitForClause::stmt );
1032	maybe_accept( node, &WaitForClause::when_cond );
1033	}
1034
1035	VISIT_END( WaitForClause, node );
1036	}
1037
1038	//--------------------------------------------------------------------------
1039	// WaitUntilStmt
1040	template< typename core_t >
1041	const ast::Stmt * ast::Pass< core_t >::visit( const ast::WaitUntilStmt * node ) {
1042	VISIT_START( node );
1043
1044	if ( __visit_children() ) {
1045	maybe_accept( node, &WaitUntilStmt::clauses );
1046	maybe_accept( node, &WaitUntilStmt::timeout_time );
1047	maybe_accept( node, &WaitUntilStmt::timeout_stmt );
1048	maybe_accept( node, &WaitUntilStmt::timeout_cond );
1049	maybe_accept( node, &WaitUntilStmt::else_stmt );
1050	maybe_accept( node, &WaitUntilStmt::else_cond );
1051	}
1052
1053	VISIT_END( Stmt, node );
1054	}
1055
1056	//--------------------------------------------------------------------------
1057	// WithStmt
1058	template< typename core_t >
1059	const ast::Decl * ast::Pass< core_t >::visit( const ast::WithStmt * node ) {
1060	VISIT_START( node );
1061
1062	if ( __visit_children() ) {
1063	maybe_accept( node, &WithStmt::exprs );
1064	{
1065	// catch statements introduce a level of scope (for the caught exception)
1066	guard_symtab guard { *this };
1067	__pass::symtab::addWith( core, 0, node->exprs, node );
1068	maybe_accept( node, &WithStmt::stmt );
1069	}
1070	}
1071
1072	VISIT_END( Stmt, node );
1073	}
1074
1075	//--------------------------------------------------------------------------
1076	// NullStmt
1077	template< typename core_t >
1078	const ast::NullStmt * ast::Pass< core_t >::visit( const ast::NullStmt * node ) {
1079	VISIT_START( node );
1080	VISIT_END( NullStmt, node );
1081	}
1082
1083	//--------------------------------------------------------------------------
1084	// DeclStmt
1085	template< typename core_t >
1086	const ast::Stmt * ast::Pass< core_t >::visit( const ast::DeclStmt * node ) {
1087	VISIT_START( node );
1088
1089	if ( __visit_children() ) {
1090	maybe_accept( node, &DeclStmt::decl );
1091	}
1092
1093	VISIT_END( Stmt, node );
1094	}
1095
1096	//--------------------------------------------------------------------------
1097	// ImplicitCtorDtorStmt
1098	template< typename core_t >
1099	const ast::Stmt * ast::Pass< core_t >::visit( const ast::ImplicitCtorDtorStmt * node ) {
1100	VISIT_START( node );
1101
1102	// For now this isn't visited, it is unclear if this causes problem
1103	// if all tests are known to pass, remove this code
1104	if ( __visit_children() ) {
1105	maybe_accept( node, &ImplicitCtorDtorStmt::callStmt );
1106	}
1107
1108	VISIT_END( Stmt, node );
1109	}
1110
1111	//--------------------------------------------------------------------------
1112	// MutexStmt
1113	template< typename core_t >
1114	const ast::Stmt * ast::Pass< core_t >::visit( const ast::MutexStmt * node ) {
1115	VISIT_START( node );
1116
1117	if ( __visit_children() ) {
1118	// mutex statements introduce a level of scope (for the initialization)
1119	guard_symtab guard { *this };
1120	maybe_accept( node, &MutexStmt::stmt );
1121	maybe_accept( node, &MutexStmt::mutexObjs );
1122	}
1123
1124	VISIT_END( Stmt, node );
1125	}
1126
1127	//--------------------------------------------------------------------------
1128	// ApplicationExpr
1129	template< typename core_t >
1130	const ast::Expr * ast::Pass< core_t >::visit( const ast::ApplicationExpr * node ) {
1131	VISIT_START( node );
1132
1133	if ( __visit_children() ) {
1134	{
1135	guard_symtab guard { *this };
1136	maybe_accept( node, &ApplicationExpr::result );
1137	}
1138	maybe_accept( node, &ApplicationExpr::func );
1139	maybe_accept( node, &ApplicationExpr::args );
1140	}
1141
1142	VISIT_END( Expr, node );
1143	}
1144
1145	//--------------------------------------------------------------------------
1146	// UntypedExpr
1147	template< typename core_t >
1148	const ast::Expr * ast::Pass< core_t >::visit( const ast::UntypedExpr * node ) {
1149	VISIT_START( node );
1150
1151	if ( __visit_children() ) {
1152	{
1153	guard_symtab guard { *this };
1154	maybe_accept( node, &UntypedExpr::result );
1155	}
1156
1157	maybe_accept( node, &UntypedExpr::args );
1158	}
1159
1160	VISIT_END( Expr, node );
1161	}
1162
1163	//--------------------------------------------------------------------------
1164	// NameExpr
1165	template< typename core_t >
1166	const ast::Expr * ast::Pass< core_t >::visit( const ast::NameExpr * node ) {
1167	VISIT_START( node );
1168
1169	if ( __visit_children() ) {
1170	guard_symtab guard { *this };
1171	maybe_accept( node, &NameExpr::result );
1172	}
1173
1174	VISIT_END( Expr, node );
1175	}
1176
1177	//--------------------------------------------------------------------------
1178	// QualifiedNameExpr
1179	template< typename core_t >
1180	const ast::Expr * ast::Pass< core_t >::visit( const ast::QualifiedNameExpr * node ) {
1181	VISIT_START( node );
1182	if ( __visit_children() ) {
1183	guard_symtab guard { *this };
1184	maybe_accept( node, &QualifiedNameExpr::type_decl );
1185	}
1186	VISIT_END( Expr, node );
1187	}
1188
1189	//--------------------------------------------------------------------------
1190	// CastExpr
1191	template< typename core_t >
1192	const ast::Expr * ast::Pass< core_t >::visit( const ast::CastExpr * node ) {
1193	VISIT_START( node );
1194
1195	if ( __visit_children() ) {
1196	{
1197	guard_symtab guard { *this };
1198	maybe_accept( node, &CastExpr::result );
1199	}
1200	maybe_accept( node, &CastExpr::arg );
1201	}
1202
1203	VISIT_END( Expr, node );
1204	}
1205
1206	//--------------------------------------------------------------------------
1207	// KeywordCastExpr
1208	template< typename core_t >
1209	const ast::Expr * ast::Pass< core_t >::visit( const ast::KeywordCastExpr * node ) {
1210	VISIT_START( node );
1211
1212	if ( __visit_children() ) {
1213	{
1214	guard_symtab guard { *this };
1215	maybe_accept( node, &KeywordCastExpr::result );
1216	}
1217	maybe_accept( node, &KeywordCastExpr::arg );
1218	}
1219
1220	VISIT_END( Expr, node );
1221	}
1222
1223	//--------------------------------------------------------------------------
1224	// VirtualCastExpr
1225	template< typename core_t >
1226	const ast::Expr * ast::Pass< core_t >::visit( const ast::VirtualCastExpr * node ) {
1227	VISIT_START( node );
1228
1229	if ( __visit_children() ) {
1230	{
1231	guard_symtab guard { *this };
1232	maybe_accept( node, &VirtualCastExpr::result );
1233	}
1234	maybe_accept( node, &VirtualCastExpr::arg );
1235	}
1236
1237	VISIT_END( Expr, node );
1238	}
1239
1240	//--------------------------------------------------------------------------
1241	// AddressExpr
1242	template< typename core_t >
1243	const ast::Expr * ast::Pass< core_t >::visit( const ast::AddressExpr * node ) {
1244	VISIT_START( node );
1245
1246	if ( __visit_children() ) {
1247	{
1248	guard_symtab guard { *this };
1249	maybe_accept( node, &AddressExpr::result );
1250	}
1251	maybe_accept( node, &AddressExpr::arg );
1252	}
1253
1254	VISIT_END( Expr, node );
1255	}
1256
1257	//--------------------------------------------------------------------------
1258	// LabelAddressExpr
1259	template< typename core_t >
1260	const ast::Expr * ast::Pass< core_t >::visit( const ast::LabelAddressExpr * node ) {
1261	VISIT_START( node );
1262
1263	if ( __visit_children() ) {
1264	guard_symtab guard { *this };
1265	maybe_accept( node, &LabelAddressExpr::result );
1266	}
1267
1268	VISIT_END( Expr, node );
1269	}
1270
1271	//--------------------------------------------------------------------------
1272	// UntypedMemberExpr
1273	template< typename core_t >
1274	const ast::Expr * ast::Pass< core_t >::visit( const ast::UntypedMemberExpr * node ) {
1275	VISIT_START( node );
1276
1277	if ( __visit_children() ) {
1278	{
1279	guard_symtab guard { *this };
1280	maybe_accept( node, &UntypedMemberExpr::result );
1281	}
1282	maybe_accept( node, &UntypedMemberExpr::aggregate );
1283	maybe_accept( node, &UntypedMemberExpr::member );
1284	}
1285
1286	VISIT_END( Expr, node );
1287	}
1288
1289	//--------------------------------------------------------------------------
1290	// MemberExpr
1291	template< typename core_t >
1292	const ast::Expr * ast::Pass< core_t >::visit( const ast::MemberExpr * node ) {
1293	VISIT_START( node );
1294
1295	if ( __visit_children() ) {
1296	{
1297	guard_symtab guard { *this };
1298	maybe_accept( node, &MemberExpr::result );
1299	}
1300	maybe_accept( node, &MemberExpr::aggregate );
1301	}
1302
1303	VISIT_END( Expr, node );
1304	}
1305
1306	//--------------------------------------------------------------------------
1307	// VariableExpr
1308	template< typename core_t >
1309	const ast::Expr * ast::Pass< core_t >::visit( const ast::VariableExpr * node ) {
1310	VISIT_START( node );
1311
1312	if ( __visit_children() ) {
1313	guard_symtab guard { *this };
1314	maybe_accept( node, &VariableExpr::result );
1315	}
1316
1317	VISIT_END( Expr, node );
1318	}
1319
1320	//--------------------------------------------------------------------------
1321	// ConstantExpr
1322	template< typename core_t >
1323	const ast::Expr * ast::Pass< core_t >::visit( const ast::ConstantExpr * node ) {
1324	VISIT_START( node );
1325
1326	if ( __visit_children() ) {
1327	guard_symtab guard { *this };
1328	maybe_accept( node, &ConstantExpr::result );
1329	}
1330
1331	VISIT_END( Expr, node );
1332	}
1333
1334	//--------------------------------------------------------------------------
1335	// SizeofExpr
1336	template< typename core_t >
1337	const ast::Expr * ast::Pass< core_t >::visit( const ast::SizeofExpr * node ) {
1338	VISIT_START( node );
1339
1340	if ( __visit_children() ) {
1341	{
1342	guard_symtab guard { *this };
1343	maybe_accept( node, &SizeofExpr::result );
1344	}
1345	if ( node->type ) {
1346	maybe_accept( node, &SizeofExpr::type );
1347	} else {
1348	maybe_accept( node, &SizeofExpr::expr );
1349	}
1350	}
1351
1352	VISIT_END( Expr, node );
1353	}
1354
1355	//--------------------------------------------------------------------------
1356	// AlignofExpr
1357	template< typename core_t >
1358	const ast::Expr * ast::Pass< core_t >::visit( const ast::AlignofExpr * node ) {
1359	VISIT_START( node );
1360
1361	if ( __visit_children() ) {
1362	{
1363	guard_symtab guard { *this };
1364	maybe_accept( node, &AlignofExpr::result );
1365	}
1366	if ( node->type ) {
1367	maybe_accept( node, &AlignofExpr::type );
1368	} else {
1369	maybe_accept( node, &AlignofExpr::expr );
1370	}
1371	}
1372
1373	VISIT_END( Expr, node );
1374	}
1375
1376	//--------------------------------------------------------------------------
1377	// UntypedOffsetofExpr
1378	template< typename core_t >
1379	const ast::Expr * ast::Pass< core_t >::visit( const ast::UntypedOffsetofExpr * node ) {
1380	VISIT_START( node );
1381
1382	if ( __visit_children() ) {
1383	{
1384	guard_symtab guard { *this };
1385	maybe_accept( node, &UntypedOffsetofExpr::result );
1386	}
1387	maybe_accept( node, &UntypedOffsetofExpr::type );
1388	}
1389
1390	VISIT_END( Expr, node );
1391	}
1392
1393	//--------------------------------------------------------------------------
1394	// OffsetofExpr
1395	template< typename core_t >
1396	const ast::Expr * ast::Pass< core_t >::visit( const ast::OffsetofExpr * node ) {
1397	VISIT_START( node );
1398
1399	if ( __visit_children() ) {
1400	{
1401	guard_symtab guard { *this };
1402	maybe_accept( node, &OffsetofExpr::result );
1403	}
1404	maybe_accept( node, &OffsetofExpr::type );
1405	}
1406
1407	VISIT_END( Expr, node );
1408	}
1409
1410	//--------------------------------------------------------------------------
1411	// OffsetPackExpr
1412	template< typename core_t >
1413	const ast::Expr * ast::Pass< core_t >::visit( const ast::OffsetPackExpr * node ) {
1414	VISIT_START( node );
1415
1416	if ( __visit_children() ) {
1417	{
1418	guard_symtab guard { *this };
1419	maybe_accept( node, &OffsetPackExpr::result );
1420	}
1421	maybe_accept( node, &OffsetPackExpr::type );
1422	}
1423
1424	VISIT_END( Expr, node );
1425	}
1426
1427	//--------------------------------------------------------------------------
1428	// LogicalExpr
1429	template< typename core_t >
1430	const ast::Expr * ast::Pass< core_t >::visit( const ast::LogicalExpr * node ) {
1431	VISIT_START( node );
1432
1433	if ( __visit_children() ) {
1434	{
1435	guard_symtab guard { *this };
1436	maybe_accept( node, &LogicalExpr::result );
1437	}
1438	maybe_accept( node, &LogicalExpr::arg1 );
1439	maybe_accept( node, &LogicalExpr::arg2 );
1440	}
1441
1442	VISIT_END( Expr, node );
1443	}
1444
1445	//--------------------------------------------------------------------------
1446	// ConditionalExpr
1447	template< typename core_t >
1448	const ast::Expr * ast::Pass< core_t >::visit( const ast::ConditionalExpr * node ) {
1449	VISIT_START( node );
1450
1451	if ( __visit_children() ) {
1452	{
1453	guard_symtab guard { *this };
1454	maybe_accept( node, &ConditionalExpr::result );
1455	}
1456	maybe_accept( node, &ConditionalExpr::arg1 );
1457	maybe_accept( node, &ConditionalExpr::arg2 );
1458	maybe_accept( node, &ConditionalExpr::arg3 );
1459	}
1460
1461	VISIT_END( Expr, node );
1462	}
1463
1464	//--------------------------------------------------------------------------
1465	// CommaExpr
1466	template< typename core_t >
1467	const ast::Expr * ast::Pass< core_t >::visit( const ast::CommaExpr * node ) {
1468	VISIT_START( node );
1469
1470	if ( __visit_children() ) {
1471	{
1472	guard_symtab guard { *this };
1473	maybe_accept( node, &CommaExpr::result );
1474	}
1475	maybe_accept( node, &CommaExpr::arg1 );
1476	maybe_accept( node, &CommaExpr::arg2 );
1477	}
1478
1479	VISIT_END( Expr, node );
1480	}
1481
1482	//--------------------------------------------------------------------------
1483	// TypeExpr
1484	template< typename core_t >
1485	const ast::Expr * ast::Pass< core_t >::visit( const ast::TypeExpr * node ) {
1486	VISIT_START( node );
1487
1488	if ( __visit_children() ) {
1489	{
1490	guard_symtab guard { *this };
1491	maybe_accept( node, &TypeExpr::result );
1492	}
1493	maybe_accept( node, &TypeExpr::type );
1494	}
1495
1496	VISIT_END( Expr, node );
1497	}
1498
1499	//--------------------------------------------------------------------------
1500	// DimensionExpr
1501	template< typename core_t >
1502	const ast::Expr * ast::Pass< core_t >::visit( const ast::DimensionExpr * node ) {
1503	VISIT_START( node );
1504
1505	if ( __visit_children() ) {
1506	guard_symtab guard { *this };
1507	maybe_accept( node, &DimensionExpr::result );
1508	}
1509
1510	VISIT_END( Expr, node );
1511	}
1512
1513	//--------------------------------------------------------------------------
1514	// AsmExpr
1515	template< typename core_t >
1516	const ast::Expr * ast::Pass< core_t >::visit( const ast::AsmExpr * node ) {
1517	VISIT_START( node );
1518
1519	if ( __visit_children() ) {
1520	{
1521	guard_symtab guard { *this };
1522	maybe_accept( node, &AsmExpr::result );
1523	}
1524	maybe_accept( node, &AsmExpr::constraint );
1525	maybe_accept( node, &AsmExpr::operand );
1526	}
1527
1528	VISIT_END( Expr, node );
1529	}
1530
1531	//--------------------------------------------------------------------------
1532	// ImplicitCopyCtorExpr
1533	template< typename core_t >
1534	const ast::Expr * ast::Pass< core_t >::visit( const ast::ImplicitCopyCtorExpr * node ) {
1535	VISIT_START( node );
1536
1537	if ( __visit_children() ) {
1538	{
1539	guard_symtab guard { *this };
1540	maybe_accept( node, &ImplicitCopyCtorExpr::result );
1541	}
1542	maybe_accept( node, &ImplicitCopyCtorExpr::callExpr );
1543	}
1544
1545	VISIT_END( Expr, node );
1546	}
1547
1548	//--------------------------------------------------------------------------
1549	// ConstructorExpr
1550	template< typename core_t >
1551	const ast::Expr * ast::Pass< core_t >::visit( const ast::ConstructorExpr * node ) {
1552	VISIT_START( node );
1553
1554	if ( __visit_children() ) {
1555	{
1556	guard_symtab guard { *this };
1557	maybe_accept( node, &ConstructorExpr::result );
1558	}
1559	maybe_accept( node, &ConstructorExpr::callExpr );
1560	}
1561
1562	VISIT_END( Expr, node );
1563	}
1564
1565	//--------------------------------------------------------------------------
1566	// CompoundLiteralExpr
1567	template< typename core_t >
1568	const ast::Expr * ast::Pass< core_t >::visit( const ast::CompoundLiteralExpr * node ) {
1569	VISIT_START( node );
1570
1571	if ( __visit_children() ) {
1572	{
1573	guard_symtab guard { *this };
1574	maybe_accept( node, &CompoundLiteralExpr::result );
1575	}
1576	maybe_accept( node, &CompoundLiteralExpr::init );
1577	}
1578
1579	VISIT_END( Expr, node );
1580	}
1581
1582	//--------------------------------------------------------------------------
1583	// RangeExpr
1584	template< typename core_t >
1585	const ast::Expr * ast::Pass< core_t >::visit( const ast::RangeExpr * node ) {
1586	VISIT_START( node );
1587
1588	if ( __visit_children() ) {
1589	{
1590	guard_symtab guard { *this };
1591	maybe_accept( node, &RangeExpr::result );
1592	}
1593	maybe_accept( node, &RangeExpr::low );
1594	maybe_accept( node, &RangeExpr::high );
1595	}
1596
1597	VISIT_END( Expr, node );
1598	}
1599
1600	//--------------------------------------------------------------------------
1601	// UntypedTupleExpr
1602	template< typename core_t >
1603	const ast::Expr * ast::Pass< core_t >::visit( const ast::UntypedTupleExpr * node ) {
1604	VISIT_START( node );
1605
1606	if ( __visit_children() ) {
1607	{
1608	guard_symtab guard { *this };
1609	maybe_accept( node, &UntypedTupleExpr::result );
1610	}
1611	maybe_accept( node, &UntypedTupleExpr::exprs );
1612	}
1613
1614	VISIT_END( Expr, node );
1615	}
1616
1617	//--------------------------------------------------------------------------
1618	// TupleExpr
1619	template< typename core_t >
1620	const ast::Expr * ast::Pass< core_t >::visit( const ast::TupleExpr * node ) {
1621	VISIT_START( node );
1622
1623	if ( __visit_children() ) {
1624	{
1625	guard_symtab guard { *this };
1626	maybe_accept( node, &TupleExpr::result );
1627	}
1628	maybe_accept( node, &TupleExpr::exprs );
1629	}
1630
1631	VISIT_END( Expr, node );
1632	}
1633
1634	//--------------------------------------------------------------------------
1635	// TupleIndexExpr
1636	template< typename core_t >
1637	const ast::Expr * ast::Pass< core_t >::visit( const ast::TupleIndexExpr * node ) {
1638	VISIT_START( node );
1639
1640	if ( __visit_children() ) {
1641	{
1642	guard_symtab guard { *this };
1643	maybe_accept( node, &TupleIndexExpr::result );
1644	}
1645	maybe_accept( node, &TupleIndexExpr::tuple );
1646	}
1647
1648	VISIT_END( Expr, node );
1649	}
1650
1651	//--------------------------------------------------------------------------
1652	// TupleAssignExpr
1653	template< typename core_t >
1654	const ast::Expr * ast::Pass< core_t >::visit( const ast::TupleAssignExpr * node ) {
1655	VISIT_START( node );
1656
1657	if ( __visit_children() ) {
1658	{
1659	guard_symtab guard { *this };
1660	maybe_accept( node, &TupleAssignExpr::result );
1661	}
1662	maybe_accept( node, &TupleAssignExpr::stmtExpr );
1663	}
1664
1665	VISIT_END( Expr, node );
1666	}
1667
1668	//--------------------------------------------------------------------------
1669	// StmtExpr
1670	template< typename core_t >
1671	const ast::Expr * ast::Pass< core_t >::visit( const ast::StmtExpr * node ) {
1672	VISIT_START( node );
1673
1674	if ( __visit_children() ) {
1675	// don't want statements from outer CompoundStmts to be added to this StmtExpr
1676	// get the stmts that will need to be spliced in
1677	auto stmts_before = __pass::stmtsToAddBefore( core, 0);
1678	auto stmts_after = __pass::stmtsToAddAfter ( core, 0);
1679
1680	// These may be modified by subnode but most be restored once we exit this statemnet.
1681	ValueGuardPtr< const ast::TypeSubstitution * > __old_env( __pass::typeSubs( core, 0 ) );
1682	ValueGuardPtr< typename std::remove_pointer< decltype(stmts_before) >::type > __old_decls_before( stmts_before );
1683	ValueGuardPtr< typename std::remove_pointer< decltype(stmts_after ) >::type > __old_decls_after ( stmts_after );
1684
1685	{
1686	guard_symtab guard { *this };
1687	maybe_accept( node, &StmtExpr::result );
1688	}
1689	maybe_accept( node, &StmtExpr::stmts );
1690	maybe_accept( node, &StmtExpr::returnDecls );
1691	maybe_accept( node, &StmtExpr::dtors );
1692	}
1693
1694	VISIT_END( Expr, node );
1695	}
1696
1697	//--------------------------------------------------------------------------
1698	// UniqueExpr
1699	template< typename core_t >
1700	const ast::Expr * ast::Pass< core_t >::visit( const ast::UniqueExpr * node ) {
1701	VISIT_START( node );
1702
1703	if ( __visit_children() ) {
1704	{
1705	guard_symtab guard { *this };
1706	maybe_accept( node, &UniqueExpr::result );
1707	}
1708	maybe_accept( node, &UniqueExpr::expr );
1709	}
1710
1711	VISIT_END( Expr, node );
1712	}
1713
1714	//--------------------------------------------------------------------------
1715	// UntypedInitExpr
1716	template< typename core_t >
1717	const ast::Expr * ast::Pass< core_t >::visit( const ast::UntypedInitExpr * node ) {
1718	VISIT_START( node );
1719
1720	if ( __visit_children() ) {
1721	{
1722	guard_symtab guard { *this };
1723	maybe_accept( node, &UntypedInitExpr::result );
1724	}
1725	maybe_accept( node, &UntypedInitExpr::expr );
1726	// not currently visiting initAlts, but this doesn't matter since this node is only used in the resolver.
1727	}
1728
1729	VISIT_END( Expr, node );
1730	}
1731
1732	//--------------------------------------------------------------------------
1733	// InitExpr
1734	template< typename core_t >
1735	const ast::Expr * ast::Pass< core_t >::visit( const ast::InitExpr * node ) {
1736	VISIT_START( node );
1737
1738	if ( __visit_children() ) {
1739	{
1740	guard_symtab guard { *this };
1741	maybe_accept( node, &InitExpr::result );
1742	}
1743	maybe_accept( node, &InitExpr::expr );
1744	maybe_accept( node, &InitExpr::designation );
1745	}
1746
1747	VISIT_END( Expr, node );
1748	}
1749
1750	//--------------------------------------------------------------------------
1751	// DeletedExpr
1752	template< typename core_t >
1753	const ast::Expr * ast::Pass< core_t >::visit( const ast::DeletedExpr * node ) {
1754	VISIT_START( node );
1755
1756	if ( __visit_children() ) {
1757	{
1758	guard_symtab guard { *this };
1759	maybe_accept( node, &DeletedExpr::result );
1760	}
1761	maybe_accept( node, &DeletedExpr::expr );
1762	// don't visit deleteStmt, because it is a pointer to somewhere else in the tree.
1763	}
1764
1765	VISIT_END( Expr, node );
1766	}
1767
1768	//--------------------------------------------------------------------------
1769	// DefaultArgExpr
1770	template< typename core_t >
1771	const ast::Expr * ast::Pass< core_t >::visit( const ast::DefaultArgExpr * node ) {
1772	VISIT_START( node );
1773
1774	if ( __visit_children() ) {
1775	{
1776	guard_symtab guard { *this };
1777	maybe_accept( node, &DefaultArgExpr::result );
1778	}
1779	maybe_accept( node, &DefaultArgExpr::expr );
1780	}
1781
1782	VISIT_END( Expr, node );
1783	}
1784
1785	//--------------------------------------------------------------------------
1786	// GenericExpr
1787	template< typename core_t >
1788	const ast::Expr * ast::Pass< core_t >::visit( const ast::GenericExpr * node ) {
1789	VISIT_START( node );
1790
1791	if ( __visit_children() ) {
1792	{
1793	guard_symtab guard { *this };
1794	maybe_accept( node, &GenericExpr::result );
1795	}
1796	maybe_accept( node, &GenericExpr::control );
1797
1798	std::vector<GenericExpr::Association> new_kids;
1799	new_kids.reserve(node->associations.size());
1800	bool mutated = false;
1801	for( const auto & assoc : node->associations ) {
1802	const Type * type = nullptr;
1803	if( assoc.type ) {
1804	guard_symtab guard { *this };
1805	type = assoc.type->accept( *this );
1806	if( type != assoc.type ) mutated = true;
1807	}
1808	const Expr * expr = nullptr;
1809	if( assoc.expr ) {
1810	expr = assoc.expr->accept( *this );
1811	if( expr != assoc.expr ) mutated = true;
1812	}
1813	new_kids.emplace_back( type, expr );
1814	}
1815
1816	if(mutated) {
1817	auto n = __pass::mutate<core_t>(node);
1818	n->associations = std::move( new_kids );
1819	node = n;
1820	}
1821	}
1822
1823	VISIT_END( Expr, node );
1824	}
1825
1826	//--------------------------------------------------------------------------
1827	// VoidType
1828	template< typename core_t >
1829	const ast::Type * ast::Pass< core_t >::visit( const ast::VoidType * node ) {
1830	VISIT_START( node );
1831
1832	VISIT_END( Type, node );
1833	}
1834
1835	//--------------------------------------------------------------------------
1836	// BasicType
1837	template< typename core_t >
1838	const ast::Type * ast::Pass< core_t >::visit( const ast::BasicType * node ) {
1839	VISIT_START( node );
1840
1841	VISIT_END( Type, node );
1842	}
1843
1844	//--------------------------------------------------------------------------
1845	// PointerType
1846	template< typename core_t >
1847	const ast::Type * ast::Pass< core_t >::visit( const ast::PointerType * node ) {
1848	VISIT_START( node );
1849
1850	if ( __visit_children() ) {
1851	maybe_accept( node, &PointerType::dimension );
1852	maybe_accept( node, &PointerType::base );
1853	}
1854
1855	VISIT_END( Type, node );
1856	}
1857
1858	//--------------------------------------------------------------------------
1859	// ArrayType
1860	template< typename core_t >
1861	const ast::Type * ast::Pass< core_t >::visit( const ast::ArrayType * node ) {
1862	VISIT_START( node );
1863
1864	if ( __visit_children() ) {
1865	maybe_accept( node, &ArrayType::dimension );
1866	maybe_accept( node, &ArrayType::base );
1867	}
1868
1869	VISIT_END( Type, node );
1870	}
1871
1872	//--------------------------------------------------------------------------
1873	// ReferenceType
1874	template< typename core_t >
1875	const ast::Type * ast::Pass< core_t >::visit( const ast::ReferenceType * node ) {
1876	VISIT_START( node );
1877
1878	if ( __visit_children() ) {
1879	maybe_accept( node, &ReferenceType::base );
1880	}
1881
1882	VISIT_END( Type, node );
1883	}
1884
1885	//--------------------------------------------------------------------------
1886	// QualifiedType
1887	template< typename core_t >
1888	const ast::Type * ast::Pass< core_t >::visit( const ast::QualifiedType * node ) {
1889	VISIT_START( node );
1890
1891	if ( __visit_children() ) {
1892	maybe_accept( node, &QualifiedType::parent );
1893	maybe_accept( node, &QualifiedType::child );
1894	}
1895
1896	VISIT_END( Type, node );
1897	}
1898
1899	//--------------------------------------------------------------------------
1900	// FunctionType
1901	template< typename core_t >
1902	const ast::Type * ast::Pass< core_t >::visit( const ast::FunctionType * node ) {
1903	VISIT_START( node );
1904
1905	if ( __visit_children() ) {
1906	// guard_forall_subs forall_guard { *this, node };
1907	// mutate_forall( node );
1908	maybe_accept( node, &FunctionType::assertions );
1909	maybe_accept( node, &FunctionType::returns );
1910	maybe_accept( node, &FunctionType::params );
1911	}
1912
1913	VISIT_END( Type, node );
1914	}
1915
1916	//--------------------------------------------------------------------------
1917	// StructInstType
1918	template< typename core_t >
1919	const ast::Type * ast::Pass< core_t >::visit( const ast::StructInstType * node ) {
1920	VISIT_START( node );
1921
1922	__pass::symtab::addStruct( core, 0, node->name );
1923
1924	if ( __visit_children() ) {
1925	guard_symtab guard { *this };
1926	maybe_accept( node, &StructInstType::params );
1927	}
1928
1929	VISIT_END( Type, node );
1930	}
1931
1932	//--------------------------------------------------------------------------
1933	// UnionInstType
1934	template< typename core_t >
1935	const ast::Type * ast::Pass< core_t >::visit( const ast::UnionInstType * node ) {
1936	VISIT_START( node );
1937
1938	__pass::symtab::addUnion( core, 0, node->name );
1939
1940	if ( __visit_children() ) {
1941	guard_symtab guard { *this };
1942	maybe_accept( node, &UnionInstType::params );
1943	}
1944
1945	VISIT_END( Type, node );
1946	}
1947
1948	//--------------------------------------------------------------------------
1949	// EnumInstType
1950	template< typename core_t >
1951	const ast::Type * ast::Pass< core_t >::visit( const ast::EnumInstType * node ) {
1952	VISIT_START( node );
1953
1954	if ( __visit_children() ) {
1955	maybe_accept( node, &EnumInstType::params );
1956	}
1957
1958	VISIT_END( Type, node );
1959	}
1960
1961	//--------------------------------------------------------------------------
1962	// TraitInstType
1963	template< typename core_t >
1964	const ast::Type * ast::Pass< core_t >::visit( const ast::TraitInstType * node ) {
1965	VISIT_START( node );
1966
1967	if ( __visit_children() ) {
1968	maybe_accept( node, &TraitInstType::params );
1969	}
1970
1971	VISIT_END( Type, node );
1972	}
1973
1974	//--------------------------------------------------------------------------
1975	// TypeInstType
1976	template< typename core_t >
1977	const ast::Type * ast::Pass< core_t >::visit( const ast::TypeInstType * node ) {
1978	VISIT_START( node );
1979
1980	if ( __visit_children() ) {
1981	{
1982	maybe_accept( node, &TypeInstType::params );
1983	}
1984	// ensure that base re-bound if doing substitution
1985	__pass::forall::replace( core, 0, node );
1986	}
1987
1988	VISIT_END( Type, node );
1989	}
1990
1991	//--------------------------------------------------------------------------
1992	// TupleType
1993	template< typename core_t >
1994	const ast::Type * ast::Pass< core_t >::visit( const ast::TupleType * node ) {
1995	VISIT_START( node );
1996
1997	if ( __visit_children() ) {
1998	maybe_accept( node, &TupleType::types );
1999	}
2000
2001	VISIT_END( Type, node );
2002	}
2003
2004	//--------------------------------------------------------------------------
2005	// TypeofType
2006	template< typename core_t >
2007	const ast::Type * ast::Pass< core_t >::visit( const ast::TypeofType * node ) {
2008	VISIT_START( node );
2009
2010	if ( __visit_children() ) {
2011	maybe_accept( node, &TypeofType::expr );
2012	}
2013
2014	VISIT_END( Type, node );
2015	}
2016
2017	//--------------------------------------------------------------------------
2018	// VTableType
2019	template< typename core_t >
2020	const ast::Type * ast::Pass< core_t >::visit( const ast::VTableType * node ) {
2021	VISIT_START( node );
2022
2023	if ( __visit_children() ) {
2024	maybe_accept( node, &VTableType::base );
2025	}
2026
2027	VISIT_END( Type, node );
2028	}
2029
2030	//--------------------------------------------------------------------------
2031	// VarArgsType
2032	template< typename core_t >
2033	const ast::Type * ast::Pass< core_t >::visit( const ast::VarArgsType * node ) {
2034	VISIT_START( node );
2035
2036	VISIT_END( Type, node );
2037	}
2038
2039	//--------------------------------------------------------------------------
2040	// ZeroType
2041	template< typename core_t >
2042	const ast::Type * ast::Pass< core_t >::visit( const ast::ZeroType * node ) {
2043	VISIT_START( node );
2044
2045	VISIT_END( Type, node );
2046	}
2047
2048	//--------------------------------------------------------------------------
2049	// OneType
2050	template< typename core_t >
2051	const ast::Type * ast::Pass< core_t >::visit( const ast::OneType * node ) {
2052	VISIT_START( node );
2053
2054	VISIT_END( Type, node );
2055	}
2056
2057	//--------------------------------------------------------------------------
2058	// GlobalScopeType
2059	template< typename core_t >
2060	const ast::Type * ast::Pass< core_t >::visit( const ast::GlobalScopeType * node ) {
2061	VISIT_START( node );
2062
2063	VISIT_END( Type, node );
2064	}
2065
2066
2067	//--------------------------------------------------------------------------
2068	// Designation
2069	template< typename core_t >
2070	const ast::Designation * ast::Pass< core_t >::visit( const ast::Designation * node ) {
2071	VISIT_START( node );
2072
2073	if ( __visit_children() ) {
2074	maybe_accept( node, &Designation::designators );
2075	}
2076
2077	VISIT_END( Designation, node );
2078	}
2079
2080	//--------------------------------------------------------------------------
2081	// SingleInit
2082	template< typename core_t >
2083	const ast::Init * ast::Pass< core_t >::visit( const ast::SingleInit * node ) {
2084	VISIT_START( node );
2085
2086	if ( __visit_children() ) {
2087	maybe_accept_top( node, &SingleInit::value );
2088	}
2089
2090	VISIT_END( Init, node );
2091	}
2092
2093	//--------------------------------------------------------------------------
2094	// ListInit
2095	template< typename core_t >
2096	const ast::Init * ast::Pass< core_t >::visit( const ast::ListInit * node ) {
2097	VISIT_START( node );
2098
2099	if ( __visit_children() ) {
2100	maybe_accept( node, &ListInit::designations );
2101	maybe_accept( node, &ListInit::initializers );
2102	}
2103
2104	VISIT_END( Init, node );
2105	}
2106
2107	//--------------------------------------------------------------------------
2108	// ConstructorInit
2109	template< typename core_t >
2110	const ast::Init * ast::Pass< core_t >::visit( const ast::ConstructorInit * node ) {
2111	VISIT_START( node );
2112
2113	if ( __visit_children() ) {
2114	maybe_accept( node, &ConstructorInit::ctor );
2115	maybe_accept( node, &ConstructorInit::dtor );
2116	maybe_accept( node, &ConstructorInit::init );
2117	}
2118
2119	VISIT_END( Init, node );
2120	}
2121
2122	//--------------------------------------------------------------------------
2123	// Attribute
2124	template< typename core_t >
2125	const ast::Attribute * ast::Pass< core_t >::visit( const ast::Attribute * node ) {
2126	VISIT_START( node );
2127
2128	if ( __visit_children() ) {
2129	maybe_accept( node, &Attribute::params );
2130	}
2131
2132	VISIT_END( Attribute, node );
2133	}
2134
2135	//--------------------------------------------------------------------------
2136	// TypeSubstitution
2137	template< typename core_t >
2138	const ast::TypeSubstitution * ast::Pass< core_t >::visit( const ast::TypeSubstitution * node ) {
2139	VISIT_START( node );
2140
2141	if ( __visit_children() ) {
2142	bool mutated = false;
2143	ast::TypeSubstitution::TypeMap new_map;
2144	for ( const auto & p : node->typeMap ) {
2145	guard_symtab guard { *this };
2146	auto new_node = p.second->accept( *this );
2147	if (new_node != p.second) mutated = true;
2148	new_map.insert({ p.first, new_node });
2149	}
2150	if (mutated) {
2151	auto new_node = __pass::mutate<core_t>( node );
2152	new_node->typeMap.swap( new_map );
2153	node = new_node;
2154	}
2155	}
2156
2157	VISIT_END( TypeSubstitution, node );
2158	}
2159
2160	#undef __pedantic_pass_assertf
2161	#undef __pedantic_pass_assert
2162	#undef VISIT_START
2163	#undef VISIT_END

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