source: src/AST/Pass.impl.hpp@ affb51b

ADT ast-experimental
Last change on this file since affb51b was 4520b77e, checked in by JiadaL <j82liang@…>, 3 years ago

Merge to Master Sept 19
  • Property mode set to 100644
File size: 64.6 KB
Line 
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/TranslationUnit.hpp"
23#include "AST/TypeSubstitution.hpp"
24
25#define VISIT_START( node ) \
26 using namespace ast; \
27 /* back-up the last known code location */ \
28 __attribute__((unused)) auto loc_guard = ast::__pass::make_location_guard( core, node, 0 ); \
29 /* back-up the visit children */ \
30 __attribute__((unused)) ast::__pass::visit_children_guard guard1( ast::__pass::visit_children(core, 0) ); \
31 /* setup the scope for passes that want to run code at exit */ \
32 __attribute__((unused)) ast::__pass::guard_value guard2( ast::__pass::at_cleanup (core, 0) ); \
33 /* begin tracing memory allocation if requested by this pass */ \
34 __pass::beginTrace( core, 0 ); \
35 /* call the implementation of the previsit of this pass */ \
36 __pass::previsit( core, node, 0 );
37
38#define VISIT_END( type, node ) \
39 /* call the implementation of the postvisit of this pass */ \
40 auto __return = __pass::postvisit( core, node, 0 ); \
41 assertf(__return, "post visit should never return null"); \
42 /* end tracing memory allocation if requested by this pass */ \
43 __pass::endTrace( core, 0 ); \
44 return __return;
45
46#ifdef PEDANTIC_PASS_ASSERT
47#define __pedantic_pass_assert(...) assert (__VA_ARGS__)
48#define __pedantic_pass_assertf(...) assertf(__VA_ARGS__)
49#else
50#define __pedantic_pass_assert(...)
51#define __pedantic_pass_assertf(...)
52#endif
53
54namespace ast {
55 template<typename node_t>
56 node_t * shallowCopy( const node_t * node );
57
58 namespace __pass {
59 // Check if this is either a null pointer or a pointer to an empty container
60 template<typename T>
61 static inline bool empty( T * ptr ) {
62 return !ptr || ptr->empty();
63 }
64
65 template< typename core_t, typename node_t >
66 static inline node_t* mutate(const node_t *node) {
67 return std::is_base_of<PureVisitor, core_t>::value ? ::ast::shallowCopy(node) : ::ast::mutate(node);
68 }
69
70 //------------------------------
71 template<typename it_t, template <class...> class container_t>
72 static inline void take_all( it_t it, container_t<ast::ptr<ast::Decl>> * decls, bool * mutated = nullptr ) {
73 if(empty(decls)) return;
74
75 std::transform(decls->begin(), decls->end(), it, [](const ast::Decl * decl) -> auto {
76 return new DeclStmt( decl->location, decl );
77 });
78 decls->clear();
79 if(mutated) *mutated = true;
80 }
81
82 template<typename it_t, template <class...> class container_t>
83 static inline void take_all( it_t it, container_t<ast::ptr<ast::Stmt>> * stmts, bool * mutated = nullptr ) {
84 if(empty(stmts)) return;
85
86 std::move(stmts->begin(), stmts->end(), it);
87 stmts->clear();
88 if(mutated) *mutated = true;
89 }
90
91 //------------------------------
92 /// Check if should be skipped, different for pointers and containers
93 template<typename node_t>
94 bool skip( const ast::ptr<node_t> & val) {
95 return !val;
96 }
97
98 template< template <class...> class container_t, typename node_t >
99 bool skip( const container_t<ast::ptr< node_t >> & val ) {
100 return val.empty();
101 }
102
103 //------------------------------
104 /// Get the value to visit, different for pointers and containers
105 template<typename node_t>
106 auto get( const ast::ptr<node_t> & val, int ) -> decltype(val.get()) {
107 return val.get();
108 }
109
110 template<typename node_t>
111 const node_t & get( const node_t & val, long) {
112 return val;
113 }
114
115 //------------------------------
116 /// Check if value was mutated, different for pointers and containers
117 template<typename lhs_t, typename rhs_t>
118 bool differs( const lhs_t * old_val, const rhs_t * new_val ) {
119 return old_val != new_val;
120 }
121
122 template< template <class...> class container_t, typename node_t >
123 bool differs( const container_t<ast::ptr< node_t >> &, const container_t<ast::ptr< node_t >> & new_val ) {
124 return !new_val.empty();
125 }
126 }
127
128 template< typename node_t >
129 template< typename object_t, typename super_t, typename field_t >
130 void __pass::result1< node_t >::apply( object_t * object, field_t super_t::* field ) {
131 object->*field = value;
132 }
133
134 template< typename core_t >
135 template< typename node_t >
136 auto ast::Pass< core_t >::call_accept( const node_t * node )
137 -> typename ast::Pass< core_t >::template generic_call_accept_result<node_t>::type
138 {
139 __pedantic_pass_assert( __visit_children() );
140 __pedantic_pass_assert( node );
141
142 static_assert( !std::is_base_of<ast::Expr, node_t>::value, "ERROR");
143 static_assert( !std::is_base_of<ast::Stmt, node_t>::value, "ERROR");
144
145 auto nval = node->accept( *this );
146 __pass::result1<
147 typename std::remove_pointer< decltype( node->accept(*this) ) >::type
148 > res;
149 res.differs = nval != node;
150 res.value = nval;
151 return res;
152 }
153
154 template< typename core_t >
155 __pass::template result1<ast::Expr> ast::Pass< core_t >::call_accept( const ast::Expr * expr ) {
156 __pedantic_pass_assert( __visit_children() );
157 __pedantic_pass_assert( expr );
158
159 auto nval = expr->accept( *this );
160 return { nval != expr, nval };
161 }
162
163 template< typename core_t >
164 __pass::template result1<ast::Stmt> ast::Pass< core_t >::call_accept( const ast::Stmt * stmt ) {
165 __pedantic_pass_assert( __visit_children() );
166 __pedantic_pass_assert( stmt );
167
168 const ast::Stmt * nval = stmt->accept( *this );
169 return { nval != stmt, nval };
170 }
171
172 template< typename core_t >
173 __pass::template result1<ast::Expr> ast::Pass< core_t >::call_accept_top( const ast::Expr * expr ) {
174 __pedantic_pass_assert( __visit_children() );
175 __pedantic_pass_assert( expr );
176
177 const ast::TypeSubstitution ** typeSubs_ptr = __pass::typeSubs( core, 0 );
178 if ( typeSubs_ptr && expr->env ) {
179 *typeSubs_ptr = expr->env;
180 }
181
182 auto nval = expr->accept( *this );
183 return { nval != expr, nval };
184 }
185
186 template< typename core_t >
187 __pass::template result1<ast::Stmt> ast::Pass< core_t >::call_accept_as_compound( const ast::Stmt * stmt ) {
188 __pedantic_pass_assert( __visit_children() );
189 __pedantic_pass_assert( stmt );
190
191 // add a few useful symbols to the scope
192 using __pass::empty;
193
194 // get the stmts/decls that will need to be spliced in
195 auto stmts_before = __pass::stmtsToAddBefore( core, 0 );
196 auto stmts_after = __pass::stmtsToAddAfter ( core, 0 );
197 auto decls_before = __pass::declsToAddBefore( core, 0 );
198 auto decls_after = __pass::declsToAddAfter ( core, 0 );
199
200 // These may be modified by subnode but most be restored once we exit this statemnet.
201 ValueGuardPtr< const ast::TypeSubstitution * > __old_env ( __pass::typeSubs( core, 0 ) );
202 ValueGuardPtr< typename std::remove_pointer< decltype(stmts_before) >::type > __old_decls_before( stmts_before );
203 ValueGuardPtr< typename std::remove_pointer< decltype(stmts_after ) >::type > __old_decls_after ( stmts_after );
204 ValueGuardPtr< typename std::remove_pointer< decltype(decls_before) >::type > __old_stmts_before( decls_before );
205 ValueGuardPtr< typename std::remove_pointer< decltype(decls_after ) >::type > __old_stmts_after ( decls_after );
206
207 // Now is the time to actually visit the node
208 const ast::Stmt * nstmt = stmt->accept( *this );
209
210 // If the pass doesn't want to add anything then we are done
211 if( empty(stmts_before) && empty(stmts_after) && empty(decls_before) && empty(decls_after) ) {
212 return { nstmt != stmt, nstmt };
213 }
214
215 // Make sure that it is either adding statements or declartions but not both
216 // this is because otherwise the order would be awkward to predict
217 assert(( empty( stmts_before ) && empty( stmts_after ))
218 || ( empty( decls_before ) && empty( decls_after )) );
219
220 // Create a new Compound Statement to hold the new decls/stmts
221 ast::CompoundStmt * compound = new ast::CompoundStmt( stmt->location );
222
223 // Take all the declarations that go before
224 __pass::take_all( std::back_inserter( compound->kids ), decls_before );
225 __pass::take_all( std::back_inserter( compound->kids ), stmts_before );
226
227 // Insert the original declaration
228 compound->kids.emplace_back( nstmt );
229
230 // Insert all the declarations that go before
231 __pass::take_all( std::back_inserter( compound->kids ), decls_after );
232 __pass::take_all( std::back_inserter( compound->kids ), stmts_after );
233
234 return {true, compound};
235 }
236
237 template< template <class...> class container_t >
238 template< typename object_t, typename super_t, typename field_t >
239 void __pass::resultNstmt<container_t>::apply(object_t * object, field_t super_t::* field) {
240 auto & container = object->*field;
241 __pedantic_pass_assert( container.size() <= values.size() );
242
243 auto cit = enumerate(container).begin();
244
245 container_t<ptr<Stmt>> nvals;
246 for (delta & d : values) {
247 if ( d.is_old ) {
248 __pedantic_pass_assert( cit.idx <= d.old_idx );
249 std::advance( cit, d.old_idx - cit.idx );
250 nvals.push_back( std::move( (*cit).val) );
251 } else {
252 nvals.push_back( std::move(d.new_val) );
253 }
254 }
255
256 container = std::move(nvals);
257 }
258
259 template< template <class...> class container_t >
260 template< template <class...> class incontainer_t >
261 void __pass::resultNstmt< container_t >::take_all( incontainer_t<ptr<Stmt>> * stmts ) {
262 if (!stmts || stmts->empty()) return;
263
264 std::transform(stmts->begin(), stmts->end(), std::back_inserter( values ),
265 [](ast::ptr<ast::Stmt>& stmt) -> delta {
266 return delta( stmt.release(), -1, false );
267 });
268 stmts->clear();
269 differs = true;
270 }
271
272 template< template<class...> class container_t >
273 template< template<class...> class incontainer_t >
274 void __pass::resultNstmt< container_t >::take_all( incontainer_t<ptr<Decl>> * decls ) {
275 if (!decls || decls->empty()) return;
276
277 std::transform(decls->begin(), decls->end(), std::back_inserter( values ),
278 [](ast::ptr<ast::Decl>& decl) -> delta {
279 auto loc = decl->location;
280 auto stmt = new DeclStmt( loc, decl.release() );
281 return delta( stmt, -1, false );
282 });
283 decls->clear();
284 differs = true;
285 }
286
287 template< typename core_t >
288 template< template <class...> class container_t >
289 __pass::template resultNstmt<container_t> ast::Pass< core_t >::call_accept( const container_t< ptr<Stmt> > & statements ) {
290 __pedantic_pass_assert( __visit_children() );
291 if( statements.empty() ) return {};
292
293 // We are going to aggregate errors for all these statements
294 SemanticErrorException errors;
295
296 // add a few useful symbols to the scope
297 using __pass::empty;
298
299 // get the stmts/decls that will need to be spliced in
300 auto stmts_before = __pass::stmtsToAddBefore( core, 0 );
301 auto stmts_after = __pass::stmtsToAddAfter ( core, 0 );
302 auto decls_before = __pass::declsToAddBefore( core, 0 );
303 auto decls_after = __pass::declsToAddAfter ( core, 0 );
304
305 // These may be modified by subnode but most be restored once we exit this statemnet.
306 ValueGuardPtr< typename std::remove_pointer< decltype(stmts_before) >::type > __old_decls_before( stmts_before );
307 ValueGuardPtr< typename std::remove_pointer< decltype(stmts_after ) >::type > __old_decls_after ( stmts_after );
308 ValueGuardPtr< typename std::remove_pointer< decltype(decls_before) >::type > __old_stmts_before( decls_before );
309 ValueGuardPtr< typename std::remove_pointer< decltype(decls_after ) >::type > __old_stmts_after ( decls_after );
310
311 // update pass statitistics
312 pass_visitor_stats.depth++;
313 pass_visitor_stats.max->push(pass_visitor_stats.depth);
314 pass_visitor_stats.avg->push(pass_visitor_stats.depth);
315
316 __pass::resultNstmt<container_t> new_kids;
317 for( auto value : enumerate( statements ) ) {
318 try {
319 size_t i = value.idx;
320 const Stmt * stmt = value.val;
321 __pedantic_pass_assert( stmt );
322 const ast::Stmt * new_stmt = stmt->accept( *this );
323 assert( new_stmt );
324 if(new_stmt != stmt ) { new_kids.differs = true; }
325
326 // Make sure that it is either adding statements or declartions but not both
327 // this is because otherwise the order would be awkward to predict
328 assert(( empty( stmts_before ) && empty( stmts_after ))
329 || ( empty( decls_before ) && empty( decls_after )) );
330
331 // Take all the statements which should have gone after, N/A for first iteration
332 new_kids.take_all( decls_before );
333 new_kids.take_all( stmts_before );
334
335 // Now add the statement if there is one
336 if(new_stmt != stmt) {
337 new_kids.values.emplace_back( new_stmt, i, false );
338 } else {
339 new_kids.values.emplace_back( nullptr, i, true );
340 }
341
342 // Take all the declarations that go before
343 new_kids.take_all( decls_after );
344 new_kids.take_all( stmts_after );
345 }
346 catch ( SemanticErrorException &e ) {
347 errors.append( e );
348 }
349 }
350 pass_visitor_stats.depth--;
351 if ( !errors.isEmpty() ) { throw errors; }
352
353 return new_kids;
354 }
355
356 template< template <class...> class container_t, typename node_t >
357 template< typename object_t, typename super_t, typename field_t >
358 void __pass::resultN<container_t, node_t>::apply(object_t * object, field_t super_t::* field) {
359 auto & container = object->*field;
360 __pedantic_pass_assert( container.size() == values.size() );
361
362 for(size_t i = 0; i < container.size(); i++) {
363 // Take all the elements that are different in 'values'
364 // and swap them into 'container'
365 if( values[i] != nullptr ) swap(container[i], values[i]);
366 }
367
368 // Now the original containers should still have the unchanged values
369 // but also contain the new values
370 }
371
372 template< typename core_t >
373 template< template <class...> class container_t, typename node_t >
374 __pass::template resultN<container_t, node_t> ast::Pass< core_t >::call_accept( const container_t< ast::ptr<node_t> > & container ) {
375 __pedantic_pass_assert( __visit_children() );
376 if( container.empty() ) return {};
377 SemanticErrorException errors;
378
379 pass_visitor_stats.depth++;
380 pass_visitor_stats.max->push(pass_visitor_stats.depth);
381 pass_visitor_stats.avg->push(pass_visitor_stats.depth);
382
383 bool mutated = false;
384 container_t<ptr<node_t>> new_kids;
385 for ( const node_t * node : container ) {
386 try {
387 __pedantic_pass_assert( node );
388 const node_t * new_stmt = strict_dynamic_cast< const node_t * >( node->accept( *this ) );
389 if(new_stmt != node ) {
390 mutated = true;
391 new_kids.emplace_back( new_stmt );
392 } else {
393 new_kids.emplace_back( nullptr );
394 }
395
396 }
397 catch( SemanticErrorException &e ) {
398 errors.append( e );
399 }
400 }
401
402 __pedantic_pass_assert( new_kids.size() == container.size() );
403 pass_visitor_stats.depth--;
404 if ( ! errors.isEmpty() ) { throw errors; }
405
406 return ast::__pass::resultN<container_t, node_t>{ mutated, new_kids };
407 }
408
409 template< typename core_t >
410 template<typename node_t, typename super_t, typename field_t>
411 void ast::Pass< core_t >::maybe_accept(
412 const node_t * & parent,
413 field_t super_t::*field
414 ) {
415 static_assert( std::is_base_of<super_t, node_t>::value, "Error deducing member object" );
416
417 if(__pass::skip(parent->*field)) return;
418 const auto & old_val = __pass::get(parent->*field, 0);
419
420 static_assert( !std::is_same<const ast::Node * &, decltype(old_val)>::value, "ERROR");
421
422 auto new_val = call_accept( old_val );
423
424 static_assert( !std::is_same<const ast::Node *, decltype(new_val)>::value /* || std::is_same<int, decltype(old_val)>::value */, "ERROR");
425
426 if( new_val.differs ) {
427 auto new_parent = __pass::mutate<core_t>(parent);
428 new_val.apply(new_parent, field);
429 parent = new_parent;
430 }
431 }
432
433 template< typename core_t >
434 template<typename node_t, typename super_t, typename field_t>
435 void ast::Pass< core_t >::maybe_accept_top(
436 const node_t * & parent,
437 field_t super_t::*field
438 ) {
439 static_assert( std::is_base_of<super_t, node_t>::value, "Error deducing member object" );
440
441 if(__pass::skip(parent->*field)) return;
442 const auto & old_val = __pass::get(parent->*field, 0);
443
444 static_assert( !std::is_same<const ast::Node * &, decltype(old_val)>::value, "ERROR");
445
446 auto new_val = call_accept_top( old_val );
447
448 static_assert( !std::is_same<const ast::Node *, decltype(new_val)>::value /* || std::is_same<int, decltype(old_val)>::value */, "ERROR");
449
450 if( new_val.differs ) {
451 auto new_parent = __pass::mutate<core_t>(parent);
452 new_val.apply(new_parent, field);
453 parent = new_parent;
454 }
455 }
456
457 template< typename core_t >
458 template<typename node_t, typename super_t, typename field_t>
459 void ast::Pass< core_t >::maybe_accept_as_compound(
460 const node_t * & parent,
461 field_t super_t::*child
462 ) {
463 static_assert( std::is_base_of<super_t, node_t>::value, "Error deducing member object" );
464
465 if(__pass::skip(parent->*child)) return;
466 const auto & old_val = __pass::get(parent->*child, 0);
467
468 static_assert( !std::is_same<const ast::Node * &, decltype(old_val)>::value, "ERROR");
469
470 auto new_val = call_accept_as_compound( old_val );
471
472 static_assert( !std::is_same<const ast::Node *, decltype(new_val)>::value || std::is_same<int, decltype(old_val)>::value, "ERROR");
473
474 if( new_val.differs ) {
475 auto new_parent = __pass::mutate<core_t>(parent);
476 new_val.apply( new_parent, child );
477 parent = new_parent;
478 }
479 }
480
481}
482
483//------------------------------------------------------------------------------------------------------------------------------------------------------------------------
484//========================================================================================================================================================================
485//========================================================================================================================================================================
486//========================================================================================================================================================================
487//========================================================================================================================================================================
488//========================================================================================================================================================================
489//------------------------------------------------------------------------------------------------------------------------------------------------------------------------
490
491template< typename core_t >
492inline void ast::accept_all( std::list< ast::ptr<ast::Decl> > & decls, ast::Pass< core_t > & visitor ) {
493 // We are going to aggregate errors for all these statements
494 SemanticErrorException errors;
495
496 // add a few useful symbols to the scope
497 using __pass::empty;
498
499 // get the stmts/decls that will need to be spliced in
500 auto decls_before = __pass::declsToAddBefore( visitor.core, 0);
501 auto decls_after = __pass::declsToAddAfter ( visitor.core, 0);
502
503 // update pass statitistics
504 pass_visitor_stats.depth++;
505 pass_visitor_stats.max->push(pass_visitor_stats.depth);
506 pass_visitor_stats.avg->push(pass_visitor_stats.depth);
507
508 for ( std::list< ast::ptr<ast::Decl> >::iterator i = decls.begin(); ; ++i ) {
509 // splice in new declarations after previous decl
510 if ( !empty( decls_after ) ) { decls.splice( i, *decls_after ); }
511
512 if ( i == decls.end() ) break;
513
514 try {
515 // run visitor on declaration
516 ast::ptr<ast::Decl> & node = *i;
517 assert( node );
518 node = node->accept( visitor );
519 }
520 catch( SemanticErrorException &e ) {
521 if (__pass::on_error (visitor.core, *i, 0))
522 errors.append( e );
523 }
524
525 // splice in new declarations before current decl
526 if ( !empty( decls_before ) ) { decls.splice( i, *decls_before ); }
527 }
528 pass_visitor_stats.depth--;
529 if ( !errors.isEmpty() ) { throw errors; }
530}
531
532template< typename core_t >
533inline void ast::accept_all( ast::TranslationUnit & unit, ast::Pass< core_t > & visitor ) {
534 if ( auto ptr = __pass::translation_unit::get_cptr( visitor.core, 0 ) ) {
535 ValueGuard<const TranslationUnit *> guard( *ptr );
536 *ptr = &unit;
537 return ast::accept_all( unit.decls, visitor );
538 } else {
539 return ast::accept_all( unit.decls, visitor );
540 }
541}
542
543// A NOTE ON THE ORDER OF TRAVERSAL
544//
545// Types and typedefs have their base types visited before they are added to the type table. This is ok, since there is
546// no such thing as a recursive type or typedef.
547//
548// typedef struct { T *x; } T; // never allowed
549//
550// for structs/unions, it is possible to have recursion, so the decl should be added as if it's incomplete to begin, the
551// members are traversed, and then the complete type should be added (assuming the type is completed by this particular
552// declaration).
553//
554// struct T { struct T *x; }; // allowed
555//
556// It is important to add the complete type to the symbol table *after* the members/base has been traversed, since that
557// traversal may modify the definition of the type and these modifications should be visible when the symbol table is
558// queried later in this pass.
559
560//--------------------------------------------------------------------------
561// ObjectDecl
562template< typename core_t >
563const ast::DeclWithType * ast::Pass< core_t >::visit( const ast::ObjectDecl * node ) {
564 VISIT_START( node );
565
566 if ( __visit_children() ) {
567 {
568 guard_symtab guard { *this };
569 maybe_accept( node, &ObjectDecl::type );
570 }
571 maybe_accept( node, &ObjectDecl::init );
572 maybe_accept( node, &ObjectDecl::bitfieldWidth );
573 maybe_accept( node, &ObjectDecl::attributes );
574 }
575
576 __pass::symtab::addId( core, 0, node );
577
578 VISIT_END( DeclWithType, node );
579}
580
581//--------------------------------------------------------------------------
582// FunctionDecl
583template< typename core_t >
584const ast::DeclWithType * ast::Pass< core_t >::visit( const ast::FunctionDecl * node ) {
585 VISIT_START( node );
586
587 __pass::symtab::addId( core, 0, node );
588
589 if ( __visit_children() ) {
590 maybe_accept( node, &FunctionDecl::withExprs );
591 }
592 {
593 // with clause introduces a level of scope (for the with expression members).
594 // with clause exprs are added to the symbol table before parameters so that parameters
595 // shadow with exprs and not the other way around.
596 guard_symtab guard { *this };
597 __pass::symtab::addWith( core, 0, node->withExprs, node );
598 {
599 guard_symtab guard { *this };
600 // implicit add __func__ identifier as specified in the C manual 6.4.2.2
601 // This is a C name and so has C linkage.
602 static ast::ptr< ast::ObjectDecl > func{ new ast::ObjectDecl{
603 CodeLocation{}, "__func__",
604 new ast::ArrayType{
605 new ast::BasicType{ ast::BasicType::Char, ast::CV::Const },
606 nullptr, VariableLen, DynamicDim
607 },
608 nullptr,
609 ast::Storage::Classes(),
610 ast::Linkage::C,
611 } };
612 __pass::symtab::addId( core, 0, func );
613 if ( __visit_children() ) {
614 maybe_accept( node, &FunctionDecl::type_params );
615 maybe_accept( node, &FunctionDecl::assertions );
616 maybe_accept( node, &FunctionDecl::params );
617 maybe_accept( node, &FunctionDecl::returns );
618 maybe_accept( node, &FunctionDecl::type );
619 // First remember that we are now within a function.
620 ValueGuard< bool > oldInFunction( inFunction );
621 inFunction = true;
622 // The function body needs to have the same scope as parameters.
623 // A CompoundStmt will not enter a new scope if atFunctionTop is true.
624 ValueGuard< bool > oldAtFunctionTop( atFunctionTop );
625 atFunctionTop = true;
626 maybe_accept( node, &FunctionDecl::stmts );
627 maybe_accept( node, &FunctionDecl::attributes );
628 }
629 }
630 }
631
632 VISIT_END( DeclWithType, node );
633}
634
635//--------------------------------------------------------------------------
636// StructDecl
637template< typename core_t >
638const ast::Decl * ast::Pass< core_t >::visit( const ast::StructDecl * node ) {
639 VISIT_START( node );
640
641 // make up a forward declaration and add it before processing the members
642 // needs to be on the heap because addStruct saves the pointer
643 __pass::symtab::addStructFwd( core, 0, node );
644
645 if ( __visit_children() ) {
646 guard_symtab guard { * this };
647 maybe_accept( node, &StructDecl::params );
648 maybe_accept( node, &StructDecl::members );
649 maybe_accept( node, &StructDecl::attributes );
650 }
651
652 // this addition replaces the forward declaration
653 __pass::symtab::addStruct( core, 0, node );
654
655 VISIT_END( Decl, node );
656}
657
658//--------------------------------------------------------------------------
659// UnionDecl
660template< typename core_t >
661const ast::Decl * ast::Pass< core_t >::visit( const ast::UnionDecl * node ) {
662 VISIT_START( node );
663
664 // make up a forward declaration and add it before processing the members
665 __pass::symtab::addUnionFwd( core, 0, node );
666
667 if ( __visit_children() ) {
668 guard_symtab guard { * this };
669 maybe_accept( node, &UnionDecl::params );
670 maybe_accept( node, &UnionDecl::members );
671 maybe_accept( node, &UnionDecl::attributes );
672 }
673
674 __pass::symtab::addUnion( core, 0, node );
675
676 VISIT_END( Decl, node );
677}
678
679//--------------------------------------------------------------------------
680// EnumDecl
681template< typename core_t >
682const ast::Decl * ast::Pass< core_t >::visit( const ast::EnumDecl * node ) {
683 VISIT_START( node );
684
685 __pass::symtab::addEnum( core, 0, node );
686
687 if ( __visit_children() ) {
688 // unlike structs, traits, and unions, enums inject their members into the global scope
689 maybe_accept( node, &EnumDecl::base );
690 maybe_accept( node, &EnumDecl::params );
691 maybe_accept( node, &EnumDecl::members );
692 maybe_accept( node, &EnumDecl::attributes );
693 }
694
695 VISIT_END( Decl, node );
696}
697
698//--------------------------------------------------------------------------
699// TraitDecl
700template< typename core_t >
701const ast::Decl * ast::Pass< core_t >::visit( const ast::TraitDecl * node ) {
702 VISIT_START( node );
703
704 if ( __visit_children() ) {
705 guard_symtab guard { *this };
706 maybe_accept( node, &TraitDecl::params );
707 maybe_accept( node, &TraitDecl::members );
708 maybe_accept( node, &TraitDecl::attributes );
709 }
710
711 __pass::symtab::addTrait( core, 0, node );
712
713 VISIT_END( Decl, node );
714}
715
716//--------------------------------------------------------------------------
717// TypeDecl
718template< typename core_t >
719const ast::Decl * ast::Pass< core_t >::visit( const ast::TypeDecl * node ) {
720 VISIT_START( node );
721
722 if ( __visit_children() ) {
723 guard_symtab guard { *this };
724 maybe_accept( node, &TypeDecl::base );
725 }
726
727 // see A NOTE ON THE ORDER OF TRAVERSAL, above
728 // note that assertions come after the type is added to the symtab, since they are not part of the type proper
729 // and may depend on the type itself
730 __pass::symtab::addType( core, 0, node );
731
732 if ( __visit_children() ) {
733 maybe_accept( node, &TypeDecl::assertions );
734
735 {
736 guard_symtab guard { *this };
737 maybe_accept( node, &TypeDecl::init );
738 }
739 }
740
741 VISIT_END( Decl, node );
742}
743
744//--------------------------------------------------------------------------
745// TypedefDecl
746template< typename core_t >
747const ast::Decl * ast::Pass< core_t >::visit( const ast::TypedefDecl * node ) {
748 VISIT_START( node );
749
750 if ( __visit_children() ) {
751 guard_symtab guard { *this };
752 maybe_accept( node, &TypedefDecl::base );
753 }
754
755 __pass::symtab::addType( core, 0, node );
756
757 if ( __visit_children() ) {
758 maybe_accept( node, &TypedefDecl::assertions );
759 }
760
761 VISIT_END( Decl, node );
762}
763
764//--------------------------------------------------------------------------
765// AsmDecl
766template< typename core_t >
767const ast::AsmDecl * ast::Pass< core_t >::visit( const ast::AsmDecl * node ) {
768 VISIT_START( node );
769
770 if ( __visit_children() ) {
771 maybe_accept( node, &AsmDecl::stmt );
772 }
773
774 VISIT_END( AsmDecl, node );
775}
776
777//--------------------------------------------------------------------------
778// DirectiveDecl
779template< typename core_t >
780const ast::DirectiveDecl * ast::Pass< core_t >::visit( const ast::DirectiveDecl * node ) {
781 VISIT_START( node );
782
783 if ( __visit_children() ) {
784 maybe_accept( node, &DirectiveDecl::stmt );
785 }
786
787 VISIT_END( DirectiveDecl, node );
788}
789
790//--------------------------------------------------------------------------
791// StaticAssertDecl
792template< typename core_t >
793const ast::StaticAssertDecl * ast::Pass< core_t >::visit( const ast::StaticAssertDecl * node ) {
794 VISIT_START( node );
795
796 if ( __visit_children() ) {
797 maybe_accept_top( node, &StaticAssertDecl::cond );
798 maybe_accept( node, &StaticAssertDecl::msg );
799 }
800
801 VISIT_END( StaticAssertDecl, node );
802}
803
804//--------------------------------------------------------------------------
805// CompoundStmt
806template< typename core_t >
807const ast::CompoundStmt * ast::Pass< core_t >::visit( const ast::CompoundStmt * node ) {
808 VISIT_START( node );
809
810 if ( __visit_children() ) {
811 // Do not enter (or leave) a new scope if atFunctionTop. Remember to save the result.
812 auto guard1 = makeFuncGuard( [this, enterScope = !this->atFunctionTop]() {
813 if ( enterScope ) {
814 __pass::symtab::enter(core, 0);
815 __pass::scope::enter(core, 0);
816 }
817 }, [this, leaveScope = !this->atFunctionTop]() {
818 if ( leaveScope ) {
819 __pass::symtab::leave(core, 0);
820 __pass::scope::leave(core, 0);
821 }
822 });
823 ValueGuard< bool > guard2( atFunctionTop );
824 atFunctionTop = false;
825 guard_scope guard3 { *this };
826 maybe_accept( node, &CompoundStmt::kids );
827 }
828
829 VISIT_END( CompoundStmt, node );
830}
831
832//--------------------------------------------------------------------------
833// ExprStmt
834template< typename core_t >
835const ast::Stmt * ast::Pass< core_t >::visit( const ast::ExprStmt * node ) {
836 VISIT_START( node );
837
838 if ( __visit_children() ) {
839 maybe_accept_top( node, &ExprStmt::expr );
840 }
841
842 VISIT_END( Stmt, node );
843}
844
845//--------------------------------------------------------------------------
846// AsmStmt
847template< typename core_t >
848const ast::Stmt * ast::Pass< core_t >::visit( const ast::AsmStmt * node ) {
849 VISIT_START( node )
850
851 if ( __visit_children() ) {
852 maybe_accept( node, &AsmStmt::instruction );
853 maybe_accept( node, &AsmStmt::output );
854 maybe_accept( node, &AsmStmt::input );
855 maybe_accept( node, &AsmStmt::clobber );
856 }
857
858 VISIT_END( Stmt, node );
859}
860
861//--------------------------------------------------------------------------
862// DirectiveStmt
863template< typename core_t >
864const ast::Stmt * ast::Pass< core_t >::visit( const ast::DirectiveStmt * node ) {
865 VISIT_START( node )
866
867 VISIT_END( Stmt, node );
868}
869
870//--------------------------------------------------------------------------
871// IfStmt
872template< typename core_t >
873const ast::Stmt * ast::Pass< core_t >::visit( const ast::IfStmt * node ) {
874 VISIT_START( node );
875
876 if ( __visit_children() ) {
877 // if statements introduce a level of scope (for the initialization)
878 guard_symtab guard { *this };
879 maybe_accept( node, &IfStmt::inits );
880 maybe_accept_top( node, &IfStmt::cond );
881 maybe_accept_as_compound( node, &IfStmt::then );
882 maybe_accept_as_compound( node, &IfStmt::else_ );
883 }
884
885 VISIT_END( Stmt, node );
886}
887
888//--------------------------------------------------------------------------
889// WhileDoStmt
890template< typename core_t >
891const ast::Stmt * ast::Pass< core_t >::visit( const ast::WhileDoStmt * node ) {
892 VISIT_START( node );
893
894 if ( __visit_children() ) {
895 // while statements introduce a level of scope (for the initialization)
896 guard_symtab guard { *this };
897 maybe_accept( node, &WhileDoStmt::inits );
898 maybe_accept_top( node, &WhileDoStmt::cond );
899 maybe_accept_as_compound( node, &WhileDoStmt::body );
900 }
901
902 VISIT_END( Stmt, node );
903}
904
905//--------------------------------------------------------------------------
906// ForStmt
907template< typename core_t >
908const ast::Stmt * ast::Pass< core_t >::visit( const ast::ForStmt * node ) {
909 VISIT_START( node );
910
911 if ( __visit_children() ) {
912 // for statements introduce a level of scope (for the initialization)
913 guard_symtab guard { *this };
914 // xxx - old ast does not create WithStmtsToAdd scope for loop inits. should revisit this later.
915 maybe_accept( node, &ForStmt::inits );
916 maybe_accept_top( node, &ForStmt::cond );
917 maybe_accept_top( node, &ForStmt::inc );
918 maybe_accept_as_compound( node, &ForStmt::body );
919 }
920
921 VISIT_END( Stmt, node );
922}
923
924//--------------------------------------------------------------------------
925// SwitchStmt
926template< typename core_t >
927const ast::Stmt * ast::Pass< core_t >::visit( const ast::SwitchStmt * node ) {
928 VISIT_START( node );
929
930 if ( __visit_children() ) {
931 maybe_accept_top( node, &SwitchStmt::cond );
932 maybe_accept( node, &SwitchStmt::cases );
933 }
934
935 VISIT_END( Stmt, node );
936}
937
938//--------------------------------------------------------------------------
939// CaseClause
940template< typename core_t >
941const ast::CaseClause * ast::Pass< core_t >::visit( const ast::CaseClause * node ) {
942 VISIT_START( node );
943
944 if ( __visit_children() ) {
945 maybe_accept_top( node, &CaseClause::cond );
946 maybe_accept( node, &CaseClause::stmts );
947 }
948
949 VISIT_END( CaseClause, node );
950}
951
952//--------------------------------------------------------------------------
953// BranchStmt
954template< typename core_t >
955const ast::Stmt * ast::Pass< core_t >::visit( const ast::BranchStmt * node ) {
956 VISIT_START( node );
957 VISIT_END( Stmt, node );
958}
959
960//--------------------------------------------------------------------------
961// ReturnStmt
962template< typename core_t >
963const ast::Stmt * ast::Pass< core_t >::visit( const ast::ReturnStmt * node ) {
964 VISIT_START( node );
965
966 if ( __visit_children() ) {
967 maybe_accept_top( node, &ReturnStmt::expr );
968 }
969
970 VISIT_END( Stmt, node );
971}
972
973//--------------------------------------------------------------------------
974// ThrowStmt
975template< typename core_t >
976const ast::Stmt * ast::Pass< core_t >::visit( const ast::ThrowStmt * node ) {
977 VISIT_START( node );
978
979 if ( __visit_children() ) {
980 maybe_accept( node, &ThrowStmt::expr );
981 maybe_accept( node, &ThrowStmt::target );
982 }
983
984 VISIT_END( Stmt, node );
985}
986
987//--------------------------------------------------------------------------
988// TryStmt
989template< typename core_t >
990const ast::Stmt * ast::Pass< core_t >::visit( const ast::TryStmt * node ) {
991 VISIT_START( node );
992
993 if ( __visit_children() ) {
994 maybe_accept( node, &TryStmt::body );
995 maybe_accept( node, &TryStmt::handlers );
996 maybe_accept( node, &TryStmt::finally );
997 }
998
999 VISIT_END( Stmt, node );
1000}
1001
1002//--------------------------------------------------------------------------
1003// CatchClause
1004template< typename core_t >
1005const ast::CatchClause * ast::Pass< core_t >::visit( const ast::CatchClause * node ) {
1006 VISIT_START( node );
1007
1008 if ( __visit_children() ) {
1009 // catch statements introduce a level of scope (for the caught exception)
1010 guard_symtab guard { *this };
1011 maybe_accept( node, &CatchClause::decl );
1012 maybe_accept_top( node, &CatchClause::cond );
1013 maybe_accept_as_compound( node, &CatchClause::body );
1014 }
1015
1016 VISIT_END( CatchClause, node );
1017}
1018
1019//--------------------------------------------------------------------------
1020// FinallyClause
1021template< typename core_t >
1022const ast::FinallyClause * ast::Pass< core_t >::visit( const ast::FinallyClause * node ) {
1023 VISIT_START( node );
1024
1025 if ( __visit_children() ) {
1026 maybe_accept( node, &FinallyClause::body );
1027 }
1028
1029 VISIT_END( FinallyClause, node );
1030}
1031
1032//--------------------------------------------------------------------------
1033// FinallyStmt
1034template< typename core_t >
1035const ast::Stmt * ast::Pass< core_t >::visit( const ast::SuspendStmt * node ) {
1036 VISIT_START( node );
1037
1038 if ( __visit_children() ) {
1039 maybe_accept( node, &SuspendStmt::then );
1040 }
1041
1042 VISIT_END( Stmt, node );
1043}
1044
1045//--------------------------------------------------------------------------
1046// WaitForStmt
1047template< typename core_t >
1048const ast::Stmt * ast::Pass< core_t >::visit( const ast::WaitForStmt * node ) {
1049 VISIT_START( node );
1050
1051 if ( __visit_children() ) {
1052 maybe_accept( node, &WaitForStmt::clauses );
1053 maybe_accept( node, &WaitForStmt::timeout_time );
1054 maybe_accept( node, &WaitForStmt::timeout_stmt );
1055 maybe_accept( node, &WaitForStmt::timeout_cond );
1056 maybe_accept( node, &WaitForStmt::else_stmt );
1057 maybe_accept( node, &WaitForStmt::else_cond );
1058 }
1059
1060 VISIT_END( Stmt, node );
1061}
1062
1063//--------------------------------------------------------------------------
1064// WaitForClause
1065template< typename core_t >
1066const ast::WaitForClause * ast::Pass< core_t >::visit( const ast::WaitForClause * node ) {
1067 VISIT_START( node );
1068
1069 if ( __visit_children() ) {
1070 maybe_accept( node, &WaitForClause::target_func );
1071 maybe_accept( node, &WaitForClause::target_args );
1072 maybe_accept( node, &WaitForClause::stmt );
1073 maybe_accept( node, &WaitForClause::cond );
1074 }
1075
1076 VISIT_END( WaitForClause, node );
1077}
1078
1079//--------------------------------------------------------------------------
1080// WithStmt
1081template< typename core_t >
1082const ast::Decl * ast::Pass< core_t >::visit( const ast::WithStmt * node ) {
1083 VISIT_START( node );
1084
1085 if ( __visit_children() ) {
1086 maybe_accept( node, &WithStmt::exprs );
1087 {
1088 // catch statements introduce a level of scope (for the caught exception)
1089 guard_symtab guard { *this };
1090 __pass::symtab::addWith( core, 0, node->exprs, node );
1091 maybe_accept( node, &WithStmt::stmt );
1092 }
1093 }
1094
1095 VISIT_END( Stmt, node );
1096}
1097
1098//--------------------------------------------------------------------------
1099// NullStmt
1100template< typename core_t >
1101const ast::NullStmt * ast::Pass< core_t >::visit( const ast::NullStmt * node ) {
1102 VISIT_START( node );
1103 VISIT_END( NullStmt, node );
1104}
1105
1106//--------------------------------------------------------------------------
1107// DeclStmt
1108template< typename core_t >
1109const ast::Stmt * ast::Pass< core_t >::visit( const ast::DeclStmt * node ) {
1110 VISIT_START( node );
1111
1112 if ( __visit_children() ) {
1113 maybe_accept( node, &DeclStmt::decl );
1114 }
1115
1116 VISIT_END( Stmt, node );
1117}
1118
1119//--------------------------------------------------------------------------
1120// ImplicitCtorDtorStmt
1121template< typename core_t >
1122const ast::Stmt * ast::Pass< core_t >::visit( const ast::ImplicitCtorDtorStmt * node ) {
1123 VISIT_START( node );
1124
1125 // For now this isn't visited, it is unclear if this causes problem
1126 // if all tests are known to pass, remove this code
1127 if ( __visit_children() ) {
1128 maybe_accept( node, &ImplicitCtorDtorStmt::callStmt );
1129 }
1130
1131 VISIT_END( Stmt, node );
1132}
1133
1134//--------------------------------------------------------------------------
1135// MutexStmt
1136template< typename core_t >
1137const ast::Stmt * ast::Pass< core_t >::visit( const ast::MutexStmt * node ) {
1138 VISIT_START( node );
1139
1140 if ( __visit_children() ) {
1141 // mutex statements introduce a level of scope (for the initialization)
1142 guard_symtab guard { *this };
1143 maybe_accept( node, &MutexStmt::stmt );
1144 maybe_accept( node, &MutexStmt::mutexObjs );
1145 }
1146
1147 VISIT_END( Stmt, node );
1148}
1149
1150//--------------------------------------------------------------------------
1151// ApplicationExpr
1152template< typename core_t >
1153const ast::Expr * ast::Pass< core_t >::visit( const ast::ApplicationExpr * node ) {
1154 VISIT_START( node );
1155
1156 if ( __visit_children() ) {
1157 {
1158 guard_symtab guard { *this };
1159 maybe_accept( node, &ApplicationExpr::result );
1160 }
1161 maybe_accept( node, &ApplicationExpr::func );
1162 maybe_accept( node, &ApplicationExpr::args );
1163 }
1164
1165 VISIT_END( Expr, node );
1166}
1167
1168//--------------------------------------------------------------------------
1169// UntypedExpr
1170template< typename core_t >
1171const ast::Expr * ast::Pass< core_t >::visit( const ast::UntypedExpr * node ) {
1172 VISIT_START( node );
1173
1174 if ( __visit_children() ) {
1175 {
1176 guard_symtab guard { *this };
1177 maybe_accept( node, &UntypedExpr::result );
1178 }
1179
1180 maybe_accept( node, &UntypedExpr::args );
1181 }
1182
1183 VISIT_END( Expr, node );
1184}
1185
1186//--------------------------------------------------------------------------
1187// NameExpr
1188template< typename core_t >
1189const ast::Expr * ast::Pass< core_t >::visit( const ast::NameExpr * node ) {
1190 VISIT_START( node );
1191
1192 if ( __visit_children() ) {
1193 guard_symtab guard { *this };
1194 maybe_accept( node, &NameExpr::result );
1195 }
1196
1197 VISIT_END( Expr, node );
1198}
1199
1200//--------------------------------------------------------------------------
1201// QualifiedNameExpr
1202template< typename core_t >
1203const ast::Expr * ast::Pass< core_t >::visit( const ast::QualifiedNameExpr * node ) {
1204 VISIT_START( node );
1205 if ( __visit_children() ) {
1206 guard_symtab guard { *this };
1207 maybe_accept( node, &QualifiedNameExpr::var );
1208 maybe_accept( node, &QualifiedNameExpr::type_decl );
1209 }
1210 VISIT_END( Expr, node );
1211}
1212
1213//--------------------------------------------------------------------------
1214// CastExpr
1215template< typename core_t >
1216const ast::Expr * ast::Pass< core_t >::visit( const ast::CastExpr * node ) {
1217 VISIT_START( node );
1218
1219 if ( __visit_children() ) {
1220 {
1221 guard_symtab guard { *this };
1222 maybe_accept( node, &CastExpr::result );
1223 }
1224 maybe_accept( node, &CastExpr::arg );
1225 }
1226
1227 VISIT_END( Expr, node );
1228}
1229
1230//--------------------------------------------------------------------------
1231// KeywordCastExpr
1232template< typename core_t >
1233const ast::Expr * ast::Pass< core_t >::visit( const ast::KeywordCastExpr * node ) {
1234 VISIT_START( node );
1235
1236 if ( __visit_children() ) {
1237 {
1238 guard_symtab guard { *this };
1239 maybe_accept( node, &KeywordCastExpr::result );
1240 }
1241 maybe_accept( node, &KeywordCastExpr::arg );
1242 }
1243
1244 VISIT_END( Expr, node );
1245}
1246
1247//--------------------------------------------------------------------------
1248// VirtualCastExpr
1249template< typename core_t >
1250const ast::Expr * ast::Pass< core_t >::visit( const ast::VirtualCastExpr * node ) {
1251 VISIT_START( node );
1252
1253 if ( __visit_children() ) {
1254 {
1255 guard_symtab guard { *this };
1256 maybe_accept( node, &VirtualCastExpr::result );
1257 }
1258 maybe_accept( node, &VirtualCastExpr::arg );
1259 }
1260
1261 VISIT_END( Expr, node );
1262}
1263
1264//--------------------------------------------------------------------------
1265// AddressExpr
1266template< typename core_t >
1267const ast::Expr * ast::Pass< core_t >::visit( const ast::AddressExpr * node ) {
1268 VISIT_START( node );
1269
1270 if ( __visit_children() ) {
1271 {
1272 guard_symtab guard { *this };
1273 maybe_accept( node, &AddressExpr::result );
1274 }
1275 maybe_accept( node, &AddressExpr::arg );
1276 }
1277
1278 VISIT_END( Expr, node );
1279}
1280
1281//--------------------------------------------------------------------------
1282// LabelAddressExpr
1283template< typename core_t >
1284const ast::Expr * ast::Pass< core_t >::visit( const ast::LabelAddressExpr * node ) {
1285 VISIT_START( node );
1286
1287 if ( __visit_children() ) {
1288 guard_symtab guard { *this };
1289 maybe_accept( node, &LabelAddressExpr::result );
1290 }
1291
1292 VISIT_END( Expr, node );
1293}
1294
1295//--------------------------------------------------------------------------
1296// UntypedMemberExpr
1297template< typename core_t >
1298const ast::Expr * ast::Pass< core_t >::visit( const ast::UntypedMemberExpr * node ) {
1299 VISIT_START( node );
1300
1301 if ( __visit_children() ) {
1302 {
1303 guard_symtab guard { *this };
1304 maybe_accept( node, &UntypedMemberExpr::result );
1305 }
1306 maybe_accept( node, &UntypedMemberExpr::aggregate );
1307 maybe_accept( node, &UntypedMemberExpr::member );
1308 }
1309
1310 VISIT_END( Expr, node );
1311}
1312
1313//--------------------------------------------------------------------------
1314// MemberExpr
1315template< typename core_t >
1316const ast::Expr * ast::Pass< core_t >::visit( const ast::MemberExpr * node ) {
1317 VISIT_START( node );
1318
1319 if ( __visit_children() ) {
1320 {
1321 guard_symtab guard { *this };
1322 maybe_accept( node, &MemberExpr::result );
1323 }
1324 maybe_accept( node, &MemberExpr::aggregate );
1325 }
1326
1327 VISIT_END( Expr, node );
1328}
1329
1330//--------------------------------------------------------------------------
1331// VariableExpr
1332template< typename core_t >
1333const ast::Expr * ast::Pass< core_t >::visit( const ast::VariableExpr * node ) {
1334 VISIT_START( node );
1335
1336 if ( __visit_children() ) {
1337 guard_symtab guard { *this };
1338 maybe_accept( node, &VariableExpr::result );
1339 }
1340
1341 VISIT_END( Expr, node );
1342}
1343
1344//--------------------------------------------------------------------------
1345// ConstantExpr
1346template< typename core_t >
1347const ast::Expr * ast::Pass< core_t >::visit( const ast::ConstantExpr * node ) {
1348 VISIT_START( node );
1349
1350 if ( __visit_children() ) {
1351 guard_symtab guard { *this };
1352 maybe_accept( node, &ConstantExpr::result );
1353 }
1354
1355 VISIT_END( Expr, node );
1356}
1357
1358//--------------------------------------------------------------------------
1359// SizeofExpr
1360template< typename core_t >
1361const ast::Expr * ast::Pass< core_t >::visit( const ast::SizeofExpr * node ) {
1362 VISIT_START( node );
1363
1364 if ( __visit_children() ) {
1365 {
1366 guard_symtab guard { *this };
1367 maybe_accept( node, &SizeofExpr::result );
1368 }
1369 if ( node->type ) {
1370 maybe_accept( node, &SizeofExpr::type );
1371 } else {
1372 maybe_accept( node, &SizeofExpr::expr );
1373 }
1374 }
1375
1376 VISIT_END( Expr, node );
1377}
1378
1379//--------------------------------------------------------------------------
1380// AlignofExpr
1381template< typename core_t >
1382const ast::Expr * ast::Pass< core_t >::visit( const ast::AlignofExpr * node ) {
1383 VISIT_START( node );
1384
1385 if ( __visit_children() ) {
1386 {
1387 guard_symtab guard { *this };
1388 maybe_accept( node, &AlignofExpr::result );
1389 }
1390 if ( node->type ) {
1391 maybe_accept( node, &AlignofExpr::type );
1392 } else {
1393 maybe_accept( node, &AlignofExpr::expr );
1394 }
1395 }
1396
1397 VISIT_END( Expr, node );
1398}
1399
1400//--------------------------------------------------------------------------
1401// UntypedOffsetofExpr
1402template< typename core_t >
1403const ast::Expr * ast::Pass< core_t >::visit( const ast::UntypedOffsetofExpr * node ) {
1404 VISIT_START( node );
1405
1406 if ( __visit_children() ) {
1407 {
1408 guard_symtab guard { *this };
1409 maybe_accept( node, &UntypedOffsetofExpr::result );
1410 }
1411 maybe_accept( node, &UntypedOffsetofExpr::type );
1412 }
1413
1414 VISIT_END( Expr, node );
1415}
1416
1417//--------------------------------------------------------------------------
1418// OffsetofExpr
1419template< typename core_t >
1420const ast::Expr * ast::Pass< core_t >::visit( const ast::OffsetofExpr * node ) {
1421 VISIT_START( node );
1422
1423 if ( __visit_children() ) {
1424 {
1425 guard_symtab guard { *this };
1426 maybe_accept( node, &OffsetofExpr::result );
1427 }
1428 maybe_accept( node, &OffsetofExpr::type );
1429 }
1430
1431 VISIT_END( Expr, node );
1432}
1433
1434//--------------------------------------------------------------------------
1435// OffsetPackExpr
1436template< typename core_t >
1437const ast::Expr * ast::Pass< core_t >::visit( const ast::OffsetPackExpr * node ) {
1438 VISIT_START( node );
1439
1440 if ( __visit_children() ) {
1441 {
1442 guard_symtab guard { *this };
1443 maybe_accept( node, &OffsetPackExpr::result );
1444 }
1445 maybe_accept( node, &OffsetPackExpr::type );
1446 }
1447
1448 VISIT_END( Expr, node );
1449}
1450
1451//--------------------------------------------------------------------------
1452// LogicalExpr
1453template< typename core_t >
1454const ast::Expr * ast::Pass< core_t >::visit( const ast::LogicalExpr * node ) {
1455 VISIT_START( node );
1456
1457 if ( __visit_children() ) {
1458 {
1459 guard_symtab guard { *this };
1460 maybe_accept( node, &LogicalExpr::result );
1461 }
1462 maybe_accept( node, &LogicalExpr::arg1 );
1463 maybe_accept( node, &LogicalExpr::arg2 );
1464 }
1465
1466 VISIT_END( Expr, node );
1467}
1468
1469//--------------------------------------------------------------------------
1470// ConditionalExpr
1471template< typename core_t >
1472const ast::Expr * ast::Pass< core_t >::visit( const ast::ConditionalExpr * node ) {
1473 VISIT_START( node );
1474
1475 if ( __visit_children() ) {
1476 {
1477 guard_symtab guard { *this };
1478 maybe_accept( node, &ConditionalExpr::result );
1479 }
1480 maybe_accept( node, &ConditionalExpr::arg1 );
1481 maybe_accept( node, &ConditionalExpr::arg2 );
1482 maybe_accept( node, &ConditionalExpr::arg3 );
1483 }
1484
1485 VISIT_END( Expr, node );
1486}
1487
1488//--------------------------------------------------------------------------
1489// CommaExpr
1490template< typename core_t >
1491const ast::Expr * ast::Pass< core_t >::visit( const ast::CommaExpr * node ) {
1492 VISIT_START( node );
1493
1494 if ( __visit_children() ) {
1495 {
1496 guard_symtab guard { *this };
1497 maybe_accept( node, &CommaExpr::result );
1498 }
1499 maybe_accept( node, &CommaExpr::arg1 );
1500 maybe_accept( node, &CommaExpr::arg2 );
1501 }
1502
1503 VISIT_END( Expr, node );
1504}
1505
1506//--------------------------------------------------------------------------
1507// TypeExpr
1508template< typename core_t >
1509const ast::Expr * ast::Pass< core_t >::visit( const ast::TypeExpr * node ) {
1510 VISIT_START( node );
1511
1512 if ( __visit_children() ) {
1513 {
1514 guard_symtab guard { *this };
1515 maybe_accept( node, &TypeExpr::result );
1516 }
1517 maybe_accept( node, &TypeExpr::type );
1518 }
1519
1520 VISIT_END( Expr, node );
1521}
1522
1523//--------------------------------------------------------------------------
1524// DimensionExpr
1525template< typename core_t >
1526const ast::Expr * ast::Pass< core_t >::visit( const ast::DimensionExpr * node ) {
1527 VISIT_START( node );
1528
1529 if ( __visit_children() ) {
1530 guard_symtab guard { *this };
1531 maybe_accept( node, &DimensionExpr::result );
1532 }
1533
1534 VISIT_END( Expr, node );
1535}
1536
1537//--------------------------------------------------------------------------
1538// AsmExpr
1539template< typename core_t >
1540const ast::Expr * ast::Pass< core_t >::visit( const ast::AsmExpr * node ) {
1541 VISIT_START( node );
1542
1543 if ( __visit_children() ) {
1544 {
1545 guard_symtab guard { *this };
1546 maybe_accept( node, &AsmExpr::result );
1547 }
1548 maybe_accept( node, &AsmExpr::constraint );
1549 maybe_accept( node, &AsmExpr::operand );
1550 }
1551
1552 VISIT_END( Expr, node );
1553}
1554
1555//--------------------------------------------------------------------------
1556// ImplicitCopyCtorExpr
1557template< typename core_t >
1558const ast::Expr * ast::Pass< core_t >::visit( const ast::ImplicitCopyCtorExpr * node ) {
1559 VISIT_START( node );
1560
1561 if ( __visit_children() ) {
1562 {
1563 guard_symtab guard { *this };
1564 maybe_accept( node, &ImplicitCopyCtorExpr::result );
1565 }
1566 maybe_accept( node, &ImplicitCopyCtorExpr::callExpr );
1567 }
1568
1569 VISIT_END( Expr, node );
1570}
1571
1572//--------------------------------------------------------------------------
1573// ConstructorExpr
1574template< typename core_t >
1575const ast::Expr * ast::Pass< core_t >::visit( const ast::ConstructorExpr * node ) {
1576 VISIT_START( node );
1577
1578 if ( __visit_children() ) {
1579 {
1580 guard_symtab guard { *this };
1581 maybe_accept( node, &ConstructorExpr::result );
1582 }
1583 maybe_accept( node, &ConstructorExpr::callExpr );
1584 }
1585
1586 VISIT_END( Expr, node );
1587}
1588
1589//--------------------------------------------------------------------------
1590// CompoundLiteralExpr
1591template< typename core_t >
1592const ast::Expr * ast::Pass< core_t >::visit( const ast::CompoundLiteralExpr * node ) {
1593 VISIT_START( node );
1594
1595 if ( __visit_children() ) {
1596 {
1597 guard_symtab guard { *this };
1598 maybe_accept( node, &CompoundLiteralExpr::result );
1599 }
1600 maybe_accept( node, &CompoundLiteralExpr::init );
1601 }
1602
1603 VISIT_END( Expr, node );
1604}
1605
1606//--------------------------------------------------------------------------
1607// RangeExpr
1608template< typename core_t >
1609const ast::Expr * ast::Pass< core_t >::visit( const ast::RangeExpr * node ) {
1610 VISIT_START( node );
1611
1612 if ( __visit_children() ) {
1613 {
1614 guard_symtab guard { *this };
1615 maybe_accept( node, &RangeExpr::result );
1616 }
1617 maybe_accept( node, &RangeExpr::low );
1618 maybe_accept( node, &RangeExpr::high );
1619 }
1620
1621 VISIT_END( Expr, node );
1622}
1623
1624//--------------------------------------------------------------------------
1625// UntypedTupleExpr
1626template< typename core_t >
1627const ast::Expr * ast::Pass< core_t >::visit( const ast::UntypedTupleExpr * node ) {
1628 VISIT_START( node );
1629
1630 if ( __visit_children() ) {
1631 {
1632 guard_symtab guard { *this };
1633 maybe_accept( node, &UntypedTupleExpr::result );
1634 }
1635 maybe_accept( node, &UntypedTupleExpr::exprs );
1636 }
1637
1638 VISIT_END( Expr, node );
1639}
1640
1641//--------------------------------------------------------------------------
1642// TupleExpr
1643template< typename core_t >
1644const ast::Expr * ast::Pass< core_t >::visit( const ast::TupleExpr * node ) {
1645 VISIT_START( node );
1646
1647 if ( __visit_children() ) {
1648 {
1649 guard_symtab guard { *this };
1650 maybe_accept( node, &TupleExpr::result );
1651 }
1652 maybe_accept( node, &TupleExpr::exprs );
1653 }
1654
1655 VISIT_END( Expr, node );
1656}
1657
1658//--------------------------------------------------------------------------
1659// TupleIndexExpr
1660template< typename core_t >
1661const ast::Expr * ast::Pass< core_t >::visit( const ast::TupleIndexExpr * node ) {
1662 VISIT_START( node );
1663
1664 if ( __visit_children() ) {
1665 {
1666 guard_symtab guard { *this };
1667 maybe_accept( node, &TupleIndexExpr::result );
1668 }
1669 maybe_accept( node, &TupleIndexExpr::tuple );
1670 }
1671
1672 VISIT_END( Expr, node );
1673}
1674
1675//--------------------------------------------------------------------------
1676// TupleAssignExpr
1677template< typename core_t >
1678const ast::Expr * ast::Pass< core_t >::visit( const ast::TupleAssignExpr * node ) {
1679 VISIT_START( node );
1680
1681 if ( __visit_children() ) {
1682 {
1683 guard_symtab guard { *this };
1684 maybe_accept( node, &TupleAssignExpr::result );
1685 }
1686 maybe_accept( node, &TupleAssignExpr::stmtExpr );
1687 }
1688
1689 VISIT_END( Expr, node );
1690}
1691
1692//--------------------------------------------------------------------------
1693// StmtExpr
1694template< typename core_t >
1695const ast::Expr * ast::Pass< core_t >::visit( const ast::StmtExpr * node ) {
1696 VISIT_START( node );
1697
1698 if ( __visit_children() ) {
1699 // don't want statements from outer CompoundStmts to be added to this StmtExpr
1700 // get the stmts that will need to be spliced in
1701 auto stmts_before = __pass::stmtsToAddBefore( core, 0);
1702 auto stmts_after = __pass::stmtsToAddAfter ( core, 0);
1703
1704 // These may be modified by subnode but most be restored once we exit this statemnet.
1705 ValueGuardPtr< const ast::TypeSubstitution * > __old_env( __pass::typeSubs( core, 0 ) );
1706 ValueGuardPtr< typename std::remove_pointer< decltype(stmts_before) >::type > __old_decls_before( stmts_before );
1707 ValueGuardPtr< typename std::remove_pointer< decltype(stmts_after ) >::type > __old_decls_after ( stmts_after );
1708
1709 {
1710 guard_symtab guard { *this };
1711 maybe_accept( node, &StmtExpr::result );
1712 }
1713 maybe_accept( node, &StmtExpr::stmts );
1714 maybe_accept( node, &StmtExpr::returnDecls );
1715 maybe_accept( node, &StmtExpr::dtors );
1716 }
1717
1718 VISIT_END( Expr, node );
1719}
1720
1721//--------------------------------------------------------------------------
1722// UniqueExpr
1723template< typename core_t >
1724const ast::Expr * ast::Pass< core_t >::visit( const ast::UniqueExpr * node ) {
1725 VISIT_START( node );
1726
1727 if ( __visit_children() ) {
1728 {
1729 guard_symtab guard { *this };
1730 maybe_accept( node, &UniqueExpr::result );
1731 }
1732 maybe_accept( node, &UniqueExpr::expr );
1733 }
1734
1735 VISIT_END( Expr, node );
1736}
1737
1738//--------------------------------------------------------------------------
1739// UntypedInitExpr
1740template< typename core_t >
1741const ast::Expr * ast::Pass< core_t >::visit( const ast::UntypedInitExpr * node ) {
1742 VISIT_START( node );
1743
1744 if ( __visit_children() ) {
1745 {
1746 guard_symtab guard { *this };
1747 maybe_accept( node, &UntypedInitExpr::result );
1748 }
1749 maybe_accept( node, &UntypedInitExpr::expr );
1750 // not currently visiting initAlts, but this doesn't matter since this node is only used in the resolver.
1751 }
1752
1753 VISIT_END( Expr, node );
1754}
1755
1756//--------------------------------------------------------------------------
1757// InitExpr
1758template< typename core_t >
1759const ast::Expr * ast::Pass< core_t >::visit( const ast::InitExpr * node ) {
1760 VISIT_START( node );
1761
1762 if ( __visit_children() ) {
1763 {
1764 guard_symtab guard { *this };
1765 maybe_accept( node, &InitExpr::result );
1766 }
1767 maybe_accept( node, &InitExpr::expr );
1768 maybe_accept( node, &InitExpr::designation );
1769 }
1770
1771 VISIT_END( Expr, node );
1772}
1773
1774//--------------------------------------------------------------------------
1775// DeletedExpr
1776template< typename core_t >
1777const ast::Expr * ast::Pass< core_t >::visit( const ast::DeletedExpr * node ) {
1778 VISIT_START( node );
1779
1780 if ( __visit_children() ) {
1781 {
1782 guard_symtab guard { *this };
1783 maybe_accept( node, &DeletedExpr::result );
1784 }
1785 maybe_accept( node, &DeletedExpr::expr );
1786 // don't visit deleteStmt, because it is a pointer to somewhere else in the tree.
1787 }
1788
1789 VISIT_END( Expr, node );
1790}
1791
1792//--------------------------------------------------------------------------
1793// DefaultArgExpr
1794template< typename core_t >
1795const ast::Expr * ast::Pass< core_t >::visit( const ast::DefaultArgExpr * node ) {
1796 VISIT_START( node );
1797
1798 if ( __visit_children() ) {
1799 {
1800 guard_symtab guard { *this };
1801 maybe_accept( node, &DefaultArgExpr::result );
1802 }
1803 maybe_accept( node, &DefaultArgExpr::expr );
1804 }
1805
1806 VISIT_END( Expr, node );
1807}
1808
1809//--------------------------------------------------------------------------
1810// GenericExpr
1811template< typename core_t >
1812const ast::Expr * ast::Pass< core_t >::visit( const ast::GenericExpr * node ) {
1813 VISIT_START( node );
1814
1815 if ( __visit_children() ) {
1816 {
1817 guard_symtab guard { *this };
1818 maybe_accept( node, &GenericExpr::result );
1819 }
1820 maybe_accept( node, &GenericExpr::control );
1821
1822 std::vector<GenericExpr::Association> new_kids;
1823 new_kids.reserve(node->associations.size());
1824 bool mutated = false;
1825 for( const auto & assoc : node->associations ) {
1826 const Type * type = nullptr;
1827 if( assoc.type ) {
1828 guard_symtab guard { *this };
1829 type = assoc.type->accept( *this );
1830 if( type != assoc.type ) mutated = true;
1831 }
1832 const Expr * expr = nullptr;
1833 if( assoc.expr ) {
1834 expr = assoc.expr->accept( *this );
1835 if( expr != assoc.expr ) mutated = true;
1836 }
1837 new_kids.emplace_back( type, expr );
1838 }
1839
1840 if(mutated) {
1841 auto n = __pass::mutate<core_t>(node);
1842 n->associations = std::move( new_kids );
1843 node = n;
1844 }
1845 }
1846
1847 VISIT_END( Expr, node );
1848}
1849
1850//--------------------------------------------------------------------------
1851// VoidType
1852template< typename core_t >
1853const ast::Type * ast::Pass< core_t >::visit( const ast::VoidType * node ) {
1854 VISIT_START( node );
1855
1856 VISIT_END( Type, node );
1857}
1858
1859//--------------------------------------------------------------------------
1860// BasicType
1861template< typename core_t >
1862const ast::Type * ast::Pass< core_t >::visit( const ast::BasicType * node ) {
1863 VISIT_START( node );
1864
1865 VISIT_END( Type, node );
1866}
1867
1868//--------------------------------------------------------------------------
1869// PointerType
1870template< typename core_t >
1871const ast::Type * ast::Pass< core_t >::visit( const ast::PointerType * node ) {
1872 VISIT_START( node );
1873
1874 if ( __visit_children() ) {
1875 maybe_accept( node, &PointerType::dimension );
1876 maybe_accept( node, &PointerType::base );
1877 }
1878
1879 VISIT_END( Type, node );
1880}
1881
1882//--------------------------------------------------------------------------
1883// ArrayType
1884template< typename core_t >
1885const ast::Type * ast::Pass< core_t >::visit( const ast::ArrayType * node ) {
1886 VISIT_START( node );
1887
1888 if ( __visit_children() ) {
1889 maybe_accept( node, &ArrayType::dimension );
1890 maybe_accept( node, &ArrayType::base );
1891 }
1892
1893 VISIT_END( Type, node );
1894}
1895
1896//--------------------------------------------------------------------------
1897// ReferenceType
1898template< typename core_t >
1899const ast::Type * ast::Pass< core_t >::visit( const ast::ReferenceType * node ) {
1900 VISIT_START( node );
1901
1902 if ( __visit_children() ) {
1903 maybe_accept( node, &ReferenceType::base );
1904 }
1905
1906 VISIT_END( Type, node );
1907}
1908
1909//--------------------------------------------------------------------------
1910// QualifiedType
1911template< typename core_t >
1912const ast::Type * ast::Pass< core_t >::visit( const ast::QualifiedType * node ) {
1913 VISIT_START( node );
1914
1915 if ( __visit_children() ) {
1916 maybe_accept( node, &QualifiedType::parent );
1917 maybe_accept( node, &QualifiedType::child );
1918 }
1919
1920 VISIT_END( Type, node );
1921}
1922
1923//--------------------------------------------------------------------------
1924// FunctionType
1925template< typename core_t >
1926const ast::Type * ast::Pass< core_t >::visit( const ast::FunctionType * node ) {
1927 VISIT_START( node );
1928
1929 if ( __visit_children() ) {
1930 // guard_forall_subs forall_guard { *this, node };
1931 // mutate_forall( node );
1932 maybe_accept( node, &FunctionType::assertions );
1933 maybe_accept( node, &FunctionType::returns );
1934 maybe_accept( node, &FunctionType::params );
1935 }
1936
1937 VISIT_END( Type, node );
1938}
1939
1940//--------------------------------------------------------------------------
1941// StructInstType
1942template< typename core_t >
1943const ast::Type * ast::Pass< core_t >::visit( const ast::StructInstType * node ) {
1944 VISIT_START( node );
1945
1946 __pass::symtab::addStruct( core, 0, node->name );
1947
1948 if ( __visit_children() ) {
1949 guard_symtab guard { *this };
1950 maybe_accept( node, &StructInstType::params );
1951 }
1952
1953 VISIT_END( Type, node );
1954}
1955
1956//--------------------------------------------------------------------------
1957// UnionInstType
1958template< typename core_t >
1959const ast::Type * ast::Pass< core_t >::visit( const ast::UnionInstType * node ) {
1960 VISIT_START( node );
1961
1962 __pass::symtab::addUnion( core, 0, node->name );
1963
1964 if ( __visit_children() ) {
1965 guard_symtab guard { *this };
1966 maybe_accept( node, &UnionInstType::params );
1967 }
1968
1969 VISIT_END( Type, node );
1970}
1971
1972//--------------------------------------------------------------------------
1973// EnumInstType
1974template< typename core_t >
1975const ast::Type * ast::Pass< core_t >::visit( const ast::EnumInstType * node ) {
1976 VISIT_START( node );
1977
1978 if ( __visit_children() ) {
1979 maybe_accept( node, &EnumInstType::params );
1980 }
1981
1982 VISIT_END( Type, node );
1983}
1984
1985//--------------------------------------------------------------------------
1986// TraitInstType
1987template< typename core_t >
1988const ast::Type * ast::Pass< core_t >::visit( const ast::TraitInstType * node ) {
1989 VISIT_START( node );
1990
1991 if ( __visit_children() ) {
1992 maybe_accept( node, &TraitInstType::params );
1993 }
1994
1995 VISIT_END( Type, node );
1996}
1997
1998//--------------------------------------------------------------------------
1999// TypeInstType
2000template< typename core_t >
2001const ast::Type * ast::Pass< core_t >::visit( const ast::TypeInstType * node ) {
2002 VISIT_START( node );
2003
2004 if ( __visit_children() ) {
2005 {
2006 maybe_accept( node, &TypeInstType::params );
2007 }
2008 // ensure that base re-bound if doing substitution
2009 __pass::forall::replace( core, 0, node );
2010 }
2011
2012 VISIT_END( Type, node );
2013}
2014
2015//--------------------------------------------------------------------------
2016// TupleType
2017template< typename core_t >
2018const ast::Type * ast::Pass< core_t >::visit( const ast::TupleType * node ) {
2019 VISIT_START( node );
2020
2021 if ( __visit_children() ) {
2022 maybe_accept( node, &TupleType::types );
2023 maybe_accept( node, &TupleType::members );
2024 }
2025
2026 VISIT_END( Type, node );
2027}
2028
2029//--------------------------------------------------------------------------
2030// TypeofType
2031template< typename core_t >
2032const ast::Type * ast::Pass< core_t >::visit( const ast::TypeofType * node ) {
2033 VISIT_START( node );
2034
2035 if ( __visit_children() ) {
2036 maybe_accept( node, &TypeofType::expr );
2037 }
2038
2039 VISIT_END( Type, node );
2040}
2041
2042//--------------------------------------------------------------------------
2043// VTableType
2044template< typename core_t >
2045const ast::Type * ast::Pass< core_t >::visit( const ast::VTableType * node ) {
2046 VISIT_START( node );
2047
2048 if ( __visit_children() ) {
2049 maybe_accept( node, &VTableType::base );
2050 }
2051
2052 VISIT_END( Type, node );
2053}
2054
2055//--------------------------------------------------------------------------
2056// VarArgsType
2057template< typename core_t >
2058const ast::Type * ast::Pass< core_t >::visit( const ast::VarArgsType * node ) {
2059 VISIT_START( node );
2060
2061 VISIT_END( Type, node );
2062}
2063
2064//--------------------------------------------------------------------------
2065// ZeroType
2066template< typename core_t >
2067const ast::Type * ast::Pass< core_t >::visit( const ast::ZeroType * node ) {
2068 VISIT_START( node );
2069
2070 VISIT_END( Type, node );
2071}
2072
2073//--------------------------------------------------------------------------
2074// OneType
2075template< typename core_t >
2076const ast::Type * ast::Pass< core_t >::visit( const ast::OneType * node ) {
2077 VISIT_START( node );
2078
2079 VISIT_END( Type, node );
2080}
2081
2082//--------------------------------------------------------------------------
2083// GlobalScopeType
2084template< typename core_t >
2085const ast::Type * ast::Pass< core_t >::visit( const ast::GlobalScopeType * node ) {
2086 VISIT_START( node );
2087
2088 VISIT_END( Type, node );
2089}
2090
2091
2092//--------------------------------------------------------------------------
2093// Designation
2094template< typename core_t >
2095const ast::Designation * ast::Pass< core_t >::visit( const ast::Designation * node ) {
2096 VISIT_START( node );
2097
2098 if ( __visit_children() ) {
2099 maybe_accept( node, &Designation::designators );
2100 }
2101
2102 VISIT_END( Designation, node );
2103}
2104
2105//--------------------------------------------------------------------------
2106// SingleInit
2107template< typename core_t >
2108const ast::Init * ast::Pass< core_t >::visit( const ast::SingleInit * node ) {
2109 VISIT_START( node );
2110
2111 if ( __visit_children() ) {
2112 maybe_accept_top( node, &SingleInit::value );
2113 }
2114
2115 VISIT_END( Init, node );
2116}
2117
2118//--------------------------------------------------------------------------
2119// ListInit
2120template< typename core_t >
2121const ast::Init * ast::Pass< core_t >::visit( const ast::ListInit * node ) {
2122 VISIT_START( node );
2123
2124 if ( __visit_children() ) {
2125 maybe_accept( node, &ListInit::designations );
2126 maybe_accept( node, &ListInit::initializers );
2127 }
2128
2129 VISIT_END( Init, node );
2130}
2131
2132//--------------------------------------------------------------------------
2133// ConstructorInit
2134template< typename core_t >
2135const ast::Init * ast::Pass< core_t >::visit( const ast::ConstructorInit * node ) {
2136 VISIT_START( node );
2137
2138 if ( __visit_children() ) {
2139 maybe_accept( node, &ConstructorInit::ctor );
2140 maybe_accept( node, &ConstructorInit::dtor );
2141 maybe_accept( node, &ConstructorInit::init );
2142 }
2143
2144 VISIT_END( Init, node );
2145}
2146
2147//--------------------------------------------------------------------------
2148// Attribute
2149template< typename core_t >
2150const ast::Attribute * ast::Pass< core_t >::visit( const ast::Attribute * node ) {
2151 VISIT_START( node );
2152
2153 if ( __visit_children() ) {
2154 maybe_accept( node, &Attribute::params );
2155 }
2156
2157 VISIT_END( Attribute, node );
2158}
2159
2160//--------------------------------------------------------------------------
2161// TypeSubstitution
2162template< typename core_t >
2163const ast::TypeSubstitution * ast::Pass< core_t >::visit( const ast::TypeSubstitution * node ) {
2164 VISIT_START( node );
2165
2166 if ( __visit_children() ) {
2167 bool mutated = false;
2168 ast::TypeSubstitution::TypeMap new_map;
2169 for ( const auto & p : node->typeMap ) {
2170 guard_symtab guard { *this };
2171 auto new_node = p.second->accept( *this );
2172 if (new_node != p.second) mutated = true;
2173 new_map.insert({ p.first, new_node });
2174 }
2175 if (mutated) {
2176 auto new_node = __pass::mutate<core_t>( node );
2177 new_node->typeMap.swap( new_map );
2178 node = new_node;
2179 }
2180 }
2181
2182 VISIT_END( TypeSubstitution, node );
2183}
2184
2185#undef VISIT_START
2186#undef VISIT_END
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