source: src/AST/Pass.impl.hpp@ 5024df4

ADT ast-experimental pthread-emulation qualifiedEnum
Last change on this file since 5024df4 was f6e6a55, checked in by Andrew Beach <ajbeach@…>, 3 years ago

Added ast::WaitForClause and changed ast::WaitForStmt to use it. This simplified a lot of the internal code.
  • Property mode set to 100644
File size: 62.8 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 visit children */ \
28 __attribute__((unused)) ast::__pass::visit_children_guard guard1( ast::__pass::visit_children(core, 0) ); \
29 /* setup the scope for passes that want to run code at exit */ \
30 __attribute__((unused)) ast::__pass::guard_value guard2( ast::__pass::at_cleanup (core, 0) ); \
31 /* begin tracing memory allocation if requested by this pass */ \
32 __pass::beginTrace( core, 0 ); \
33 /* call the implementation of the previsit of this pass */ \
34 __pass::previsit( core, node, 0 );
35
36#define VISIT_END( type, node ) \
37 /* call the implementation of the postvisit of this pass */ \
38 auto __return = __pass::postvisit( core, node, 0 ); \
39 assertf(__return, "post visit should never return null"); \
40 /* end tracing memory allocation if requested by this pass */ \
41 __pass::endTrace( core, 0 ); \
42 return __return;
43
44#ifdef PEDANTIC_PASS_ASSERT
45#define __pedantic_pass_assert(...) assert (__VA_ARGS__)
46#define __pedantic_pass_assertf(...) assertf(__VA_ARGS__)
47#else
48#define __pedantic_pass_assert(...)
49#define __pedantic_pass_assertf(...)
50#endif
51
52namespace ast {
53 template<typename node_t>
54 node_t * shallowCopy( const node_t * node );
55
56 namespace __pass {
57 // Check if this is either a null pointer or a pointer to an empty container
58 template<typename T>
59 static inline bool empty( T * ptr ) {
60 return !ptr || ptr->empty();
61 }
62
63 template< typename core_t, typename node_t >
64 static inline node_t* mutate(const node_t *node) {
65 return std::is_base_of<PureVisitor, core_t>::value ? ::ast::shallowCopy(node) : ::ast::mutate(node);
66 }
67
68 //------------------------------
69 template<typename it_t, template <class...> class container_t>
70 static inline void take_all( it_t it, container_t<ast::ptr<ast::Decl>> * decls, bool * mutated = nullptr ) {
71 if(empty(decls)) return;
72
73 std::transform(decls->begin(), decls->end(), it, [](const ast::Decl * decl) -> auto {
74 return new DeclStmt( decl->location, decl );
75 });
76 decls->clear();
77 if(mutated) *mutated = true;
78 }
79
80 template<typename it_t, template <class...> class container_t>
81 static inline void take_all( it_t it, container_t<ast::ptr<ast::Stmt>> * stmts, bool * mutated = nullptr ) {
82 if(empty(stmts)) return;
83
84 std::move(stmts->begin(), stmts->end(), it);
85 stmts->clear();
86 if(mutated) *mutated = true;
87 }
88
89 //------------------------------
90 /// Check if should be skipped, different for pointers and containers
91 template<typename node_t>
92 bool skip( const ast::ptr<node_t> & val) {
93 return !val;
94 }
95
96 template< template <class...> class container_t, typename node_t >
97 bool skip( const container_t<ast::ptr< node_t >> & val ) {
98 return val.empty();
99 }
100
101 //------------------------------
102 /// Get the value to visit, different for pointers and containers
103 template<typename node_t>
104 auto get( const ast::ptr<node_t> & val, int ) -> decltype(val.get()) {
105 return val.get();
106 }
107
108 template<typename node_t>
109 const node_t & get( const node_t & val, long) {
110 return val;
111 }
112
113 //------------------------------
114 /// Check if value was mutated, different for pointers and containers
115 template<typename lhs_t, typename rhs_t>
116 bool differs( const lhs_t * old_val, const rhs_t * new_val ) {
117 return old_val != new_val;
118 }
119
120 template< template <class...> class container_t, typename node_t >
121 bool differs( const container_t<ast::ptr< node_t >> &, const container_t<ast::ptr< node_t >> & new_val ) {
122 return !new_val.empty();
123 }
124 }
125
126 template< typename node_t >
127 template< typename object_t, typename super_t, typename field_t >
128 void __pass::result1< node_t >::apply( object_t * object, field_t super_t::* field ) {
129 object->*field = value;
130 }
131
132 template< typename core_t >
133 template< typename node_t >
134 auto ast::Pass< core_t >::call_accept( const node_t * node )
135 -> typename ast::Pass< core_t >::template generic_call_accept_result<node_t>::type
136 {
137 __pedantic_pass_assert( __visit_children() );
138 __pedantic_pass_assert( node );
139
140 static_assert( !std::is_base_of<ast::Expr, node_t>::value, "ERROR");
141 static_assert( !std::is_base_of<ast::Stmt, node_t>::value, "ERROR");
142
143 auto nval = node->accept( *this );
144 __pass::result1<
145 typename std::remove_pointer< decltype( node->accept(*this) ) >::type
146 > res;
147 res.differs = nval != node;
148 res.value = nval;
149 return res;
150 }
151
152 template< typename core_t >
153 __pass::template result1<ast::Expr> ast::Pass< core_t >::call_accept( const ast::Expr * expr ) {
154 __pedantic_pass_assert( __visit_children() );
155 __pedantic_pass_assert( expr );
156
157 const ast::TypeSubstitution ** typeSubs_ptr = __pass::typeSubs( core, 0 );
158 if ( typeSubs_ptr && expr->env ) {
159 *typeSubs_ptr = expr->env;
160 }
161
162 auto nval = expr->accept( *this );
163 return { nval != expr, nval };
164 }
165
166 template< typename core_t >
167 __pass::template result1<ast::Stmt> ast::Pass< core_t >::call_accept( const ast::Stmt * stmt ) {
168 __pedantic_pass_assert( __visit_children() );
169 __pedantic_pass_assert( stmt );
170
171 const ast::Stmt * nval = stmt->accept( *this );
172 return { nval != stmt, nval };
173 }
174
175 template< typename core_t >
176 __pass::template result1<ast::Stmt> ast::Pass< core_t >::call_accept_as_compound( const ast::Stmt * stmt ) {
177 __pedantic_pass_assert( __visit_children() );
178 __pedantic_pass_assert( stmt );
179
180 // add a few useful symbols to the scope
181 using __pass::empty;
182
183 // get the stmts/decls that will need to be spliced in
184 auto stmts_before = __pass::stmtsToAddBefore( core, 0);
185 auto stmts_after = __pass::stmtsToAddAfter ( core, 0);
186 auto decls_before = __pass::declsToAddBefore( core, 0);
187 auto decls_after = __pass::declsToAddAfter ( core, 0);
188
189 // These may be modified by subnode but most be restored once we exit this statemnet.
190 ValueGuardPtr< const ast::TypeSubstitution * > __old_env ( __pass::typeSubs( core, 0 ) );
191 ValueGuardPtr< typename std::remove_pointer< decltype(stmts_before) >::type > __old_decls_before( stmts_before );
192 ValueGuardPtr< typename std::remove_pointer< decltype(stmts_after ) >::type > __old_decls_after ( stmts_after );
193 ValueGuardPtr< typename std::remove_pointer< decltype(decls_before) >::type > __old_stmts_before( decls_before );
194 ValueGuardPtr< typename std::remove_pointer< decltype(decls_after ) >::type > __old_stmts_after ( decls_after );
195
196 // Now is the time to actually visit the node
197 const ast::Stmt * nstmt = stmt->accept( *this );
198
199 // If the pass doesn't want to add anything then we are done
200 if( empty(stmts_before) && empty(stmts_after) && empty(decls_before) && empty(decls_after) ) {
201 return { nstmt != stmt, nstmt };
202 }
203
204 // Make sure that it is either adding statements or declartions but not both
205 // this is because otherwise the order would be awkward to predict
206 assert(( empty( stmts_before ) && empty( stmts_after ))
207 || ( empty( decls_before ) && empty( decls_after )) );
208
209 // Create a new Compound Statement to hold the new decls/stmts
210 ast::CompoundStmt * compound = new ast::CompoundStmt( stmt->location );
211
212 // Take all the declarations that go before
213 __pass::take_all( std::back_inserter( compound->kids ), decls_before );
214 __pass::take_all( std::back_inserter( compound->kids ), stmts_before );
215
216 // Insert the original declaration
217 compound->kids.emplace_back( nstmt );
218
219 // Insert all the declarations that go before
220 __pass::take_all( std::back_inserter( compound->kids ), decls_after );
221 __pass::take_all( std::back_inserter( compound->kids ), stmts_after );
222
223 return {true, compound};
224 }
225
226 template< template <class...> class container_t >
227 template< typename object_t, typename super_t, typename field_t >
228 void __pass::resultNstmt<container_t>::apply(object_t * object, field_t super_t::* field) {
229 auto & container = object->*field;
230 __pedantic_pass_assert( container.size() <= values.size() );
231
232 auto cit = enumerate(container).begin();
233
234 container_t<ptr<Stmt>> nvals;
235 for (delta & d : values) {
236 if ( d.is_old ) {
237 __pedantic_pass_assert( cit.idx <= d.old_idx );
238 std::advance( cit, d.old_idx - cit.idx );
239 nvals.push_back( std::move( (*cit).val) );
240 } else {
241 nvals.push_back( std::move(d.new_val) );
242 }
243 }
244
245 container = std::move(nvals);
246 }
247
248 template< template <class...> class container_t >
249 template< template <class...> class incontainer_t >
250 void __pass::resultNstmt< container_t >::take_all( incontainer_t<ptr<Stmt>> * stmts ) {
251 if (!stmts || stmts->empty()) return;
252
253 std::transform(stmts->begin(), stmts->end(), std::back_inserter( values ),
254 [](ast::ptr<ast::Stmt>& stmt) -> delta {
255 return delta( stmt.release(), -1, false );
256 });
257 stmts->clear();
258 differs = true;
259 }
260
261 template< template<class...> class container_t >
262 template< template<class...> class incontainer_t >
263 void __pass::resultNstmt< container_t >::take_all( incontainer_t<ptr<Decl>> * decls ) {
264 if (!decls || decls->empty()) return;
265
266 std::transform(decls->begin(), decls->end(), std::back_inserter( values ),
267 [](ast::ptr<ast::Decl>& decl) -> delta {
268 auto loc = decl->location;
269 auto stmt = new DeclStmt( loc, decl.release() );
270 return delta( stmt, -1, false );
271 });
272 decls->clear();
273 differs = true;
274 }
275
276 template< typename core_t >
277 template< template <class...> class container_t >
278 __pass::template resultNstmt<container_t> ast::Pass< core_t >::call_accept( const container_t< ptr<Stmt> > & statements ) {
279 __pedantic_pass_assert( __visit_children() );
280 if( statements.empty() ) return {};
281
282 // We are going to aggregate errors for all these statements
283 SemanticErrorException errors;
284
285 // add a few useful symbols to the scope
286 using __pass::empty;
287
288 // get the stmts/decls that will need to be spliced in
289 auto stmts_before = __pass::stmtsToAddBefore( core, 0);
290 auto stmts_after = __pass::stmtsToAddAfter ( core, 0);
291 auto decls_before = __pass::declsToAddBefore( core, 0);
292 auto decls_after = __pass::declsToAddAfter ( core, 0);
293
294 // These may be modified by subnode but most be restored once we exit this statemnet.
295 ValueGuardPtr< typename std::remove_pointer< decltype(stmts_before) >::type > __old_decls_before( stmts_before );
296 ValueGuardPtr< typename std::remove_pointer< decltype(stmts_after ) >::type > __old_decls_after ( stmts_after );
297 ValueGuardPtr< typename std::remove_pointer< decltype(decls_before) >::type > __old_stmts_before( decls_before );
298 ValueGuardPtr< typename std::remove_pointer< decltype(decls_after ) >::type > __old_stmts_after ( decls_after );
299
300 // update pass statitistics
301 pass_visitor_stats.depth++;
302 pass_visitor_stats.max->push(pass_visitor_stats.depth);
303 pass_visitor_stats.avg->push(pass_visitor_stats.depth);
304
305 __pass::resultNstmt<container_t> new_kids;
306 for( auto value : enumerate( statements ) ) {
307 try {
308 size_t i = value.idx;
309 const Stmt * stmt = value.val;
310 __pedantic_pass_assert( stmt );
311 const ast::Stmt * new_stmt = stmt->accept( *this );
312 assert( new_stmt );
313 if(new_stmt != stmt ) { new_kids.differs = true; }
314
315 // Make sure that it is either adding statements or declartions but not both
316 // this is because otherwise the order would be awkward to predict
317 assert(( empty( stmts_before ) && empty( stmts_after ))
318 || ( empty( decls_before ) && empty( decls_after )) );
319
320
321
322 // Take all the statements which should have gone after, N/A for first iteration
323 new_kids.take_all( decls_before );
324 new_kids.take_all( stmts_before );
325
326 // Now add the statement if there is one
327 if(new_stmt != stmt) {
328 new_kids.values.emplace_back( new_stmt, i, false );
329 } else {
330 new_kids.values.emplace_back( nullptr, i, true );
331 }
332
333 // Take all the declarations that go before
334 new_kids.take_all( decls_after );
335 new_kids.take_all( stmts_after );
336 }
337 catch ( SemanticErrorException &e ) {
338 errors.append( e );
339 }
340 }
341 pass_visitor_stats.depth--;
342 if ( !errors.isEmpty() ) { throw errors; }
343
344 return new_kids;
345 }
346
347 template< template <class...> class container_t, typename node_t >
348 template< typename object_t, typename super_t, typename field_t >
349 void __pass::resultN<container_t, node_t>::apply(object_t * object, field_t super_t::* field) {
350 auto & container = object->*field;
351 __pedantic_pass_assert( container.size() == values.size() );
352
353 for(size_t i = 0; i < container.size(); i++) {
354 // Take all the elements that are different in 'values'
355 // and swap them into 'container'
356 if( values[i] != nullptr ) swap(container[i], values[i]);
357 }
358
359 // Now the original containers should still have the unchanged values
360 // but also contain the new values
361 }
362
363 template< typename core_t >
364 template< template <class...> class container_t, typename node_t >
365 __pass::template resultN<container_t, node_t> ast::Pass< core_t >::call_accept( const container_t< ast::ptr<node_t> > & container ) {
366 __pedantic_pass_assert( __visit_children() );
367 if( container.empty() ) return {};
368 SemanticErrorException errors;
369
370 pass_visitor_stats.depth++;
371 pass_visitor_stats.max->push(pass_visitor_stats.depth);
372 pass_visitor_stats.avg->push(pass_visitor_stats.depth);
373
374 bool mutated = false;
375 container_t<ptr<node_t>> new_kids;
376 for ( const node_t * node : container ) {
377 try {
378 __pedantic_pass_assert( node );
379 const node_t * new_stmt = strict_dynamic_cast< const node_t * >( node->accept( *this ) );
380 if(new_stmt != node ) {
381 mutated = true;
382 new_kids.emplace_back( new_stmt );
383 } else {
384 new_kids.emplace_back( nullptr );
385 }
386
387 }
388 catch( SemanticErrorException &e ) {
389 errors.append( e );
390 }
391 }
392
393 __pedantic_pass_assert( new_kids.size() == container.size() );
394 pass_visitor_stats.depth--;
395 if ( ! errors.isEmpty() ) { throw errors; }
396
397 return ast::__pass::resultN<container_t, node_t>{ mutated, new_kids };
398 }
399
400 template< typename core_t >
401 template<typename node_t, typename super_t, typename field_t>
402 void ast::Pass< core_t >::maybe_accept(
403 const node_t * & parent,
404 field_t super_t::*field
405 ) {
406 static_assert( std::is_base_of<super_t, node_t>::value, "Error deducing member object" );
407
408 if(__pass::skip(parent->*field)) return;
409 const auto & old_val = __pass::get(parent->*field, 0);
410
411 static_assert( !std::is_same<const ast::Node * &, decltype(old_val)>::value, "ERROR");
412
413 auto new_val = call_accept( old_val );
414
415 static_assert( !std::is_same<const ast::Node *, decltype(new_val)>::value /* || std::is_same<int, decltype(old_val)>::value */, "ERROR");
416
417 if( new_val.differs ) {
418 auto new_parent = __pass::mutate<core_t>(parent);
419 new_val.apply(new_parent, field);
420 parent = new_parent;
421 }
422 }
423
424 template< typename core_t >
425 template<typename node_t, typename super_t, typename field_t>
426 void ast::Pass< core_t >::maybe_accept_as_compound(
427 const node_t * & parent,
428 field_t super_t::*child
429 ) {
430 static_assert( std::is_base_of<super_t, node_t>::value, "Error deducing member object" );
431
432 if(__pass::skip(parent->*child)) return;
433 const auto & old_val = __pass::get(parent->*child, 0);
434
435 static_assert( !std::is_same<const ast::Node * &, decltype(old_val)>::value, "ERROR");
436
437 auto new_val = call_accept_as_compound( old_val );
438
439 static_assert( !std::is_same<const ast::Node *, decltype(new_val)>::value || std::is_same<int, decltype(old_val)>::value, "ERROR");
440
441 if( new_val.differs ) {
442 auto new_parent = __pass::mutate<core_t>(parent);
443 new_val.apply( new_parent, child );
444 parent = new_parent;
445 }
446 }
447
448}
449
450//------------------------------------------------------------------------------------------------------------------------------------------------------------------------
451//========================================================================================================================================================================
452//========================================================================================================================================================================
453//========================================================================================================================================================================
454//========================================================================================================================================================================
455//========================================================================================================================================================================
456//------------------------------------------------------------------------------------------------------------------------------------------------------------------------
457
458template< typename core_t >
459inline void ast::accept_all( std::list< ast::ptr<ast::Decl> > & decls, ast::Pass< core_t > & visitor ) {
460 // We are going to aggregate errors for all these statements
461 SemanticErrorException errors;
462
463 // add a few useful symbols to the scope
464 using __pass::empty;
465
466 // get the stmts/decls that will need to be spliced in
467 auto decls_before = __pass::declsToAddBefore( visitor.core, 0);
468 auto decls_after = __pass::declsToAddAfter ( visitor.core, 0);
469
470 // update pass statitistics
471 pass_visitor_stats.depth++;
472 pass_visitor_stats.max->push(pass_visitor_stats.depth);
473 pass_visitor_stats.avg->push(pass_visitor_stats.depth);
474
475 for ( std::list< ast::ptr<ast::Decl> >::iterator i = decls.begin(); ; ++i ) {
476 // splice in new declarations after previous decl
477 if ( !empty( decls_after ) ) { decls.splice( i, *decls_after ); }
478
479 if ( i == decls.end() ) break;
480
481 try {
482 // run visitor on declaration
483 ast::ptr<ast::Decl> & node = *i;
484 assert( node );
485 node = node->accept( visitor );
486 }
487 catch( SemanticErrorException &e ) {
488 if (__pass::on_error (visitor.core, *i, 0))
489 errors.append( e );
490 }
491
492 // splice in new declarations before current decl
493 if ( !empty( decls_before ) ) { decls.splice( i, *decls_before ); }
494 }
495 pass_visitor_stats.depth--;
496 if ( !errors.isEmpty() ) { throw errors; }
497}
498
499template< typename core_t >
500inline void ast::accept_all( ast::TranslationUnit & unit, ast::Pass< core_t > & visitor ) {
501 if ( auto ptr = __pass::translation_unit::get_cptr( visitor.core, 0 ) ) {
502 ValueGuard<const TranslationUnit *> guard( *ptr );
503 *ptr = &unit;
504 return ast::accept_all( unit.decls, visitor );
505 } else {
506 return ast::accept_all( unit.decls, visitor );
507 }
508}
509
510// A NOTE ON THE ORDER OF TRAVERSAL
511//
512// Types and typedefs have their base types visited before they are added to the type table. This is ok, since there is
513// no such thing as a recursive type or typedef.
514//
515// typedef struct { T *x; } T; // never allowed
516//
517// for structs/unions, it is possible to have recursion, so the decl should be added as if it's incomplete to begin, the
518// members are traversed, and then the complete type should be added (assuming the type is completed by this particular
519// declaration).
520//
521// struct T { struct T *x; }; // allowed
522//
523// It is important to add the complete type to the symbol table *after* the members/base has been traversed, since that
524// traversal may modify the definition of the type and these modifications should be visible when the symbol table is
525// queried later in this pass.
526
527//--------------------------------------------------------------------------
528// ObjectDecl
529template< typename core_t >
530const ast::DeclWithType * ast::Pass< core_t >::visit( const ast::ObjectDecl * node ) {
531 VISIT_START( node );
532
533 if ( __visit_children() ) {
534 {
535 guard_symtab guard { *this };
536 maybe_accept( node, &ObjectDecl::type );
537 }
538 maybe_accept( node, &ObjectDecl::init );
539 maybe_accept( node, &ObjectDecl::bitfieldWidth );
540 maybe_accept( node, &ObjectDecl::attributes );
541 }
542
543 __pass::symtab::addId( core, 0, node );
544
545 VISIT_END( DeclWithType, node );
546}
547
548//--------------------------------------------------------------------------
549// FunctionDecl
550template< typename core_t >
551const ast::DeclWithType * ast::Pass< core_t >::visit( const ast::FunctionDecl * node ) {
552 VISIT_START( node );
553
554 __pass::symtab::addId( core, 0, node );
555
556 if ( __visit_children() ) {
557 maybe_accept( node, &FunctionDecl::withExprs );
558 }
559 {
560 // with clause introduces a level of scope (for the with expression members).
561 // with clause exprs are added to the symbol table before parameters so that parameters
562 // shadow with exprs and not the other way around.
563 guard_symtab guard { *this };
564 __pass::symtab::addWith( core, 0, node->withExprs, node );
565 {
566 guard_symtab guard { *this };
567 // implicit add __func__ identifier as specified in the C manual 6.4.2.2
568 static ast::ptr< ast::ObjectDecl > func{ new ast::ObjectDecl{
569 CodeLocation{}, "__func__",
570 new ast::ArrayType{
571 new ast::BasicType{ ast::BasicType::Char, ast::CV::Const },
572 nullptr, VariableLen, DynamicDim
573 }
574 } };
575 __pass::symtab::addId( core, 0, func );
576 if ( __visit_children() ) {
577 maybe_accept( node, &FunctionDecl::type_params );
578 maybe_accept( node, &FunctionDecl::assertions );
579 maybe_accept( node, &FunctionDecl::params );
580 maybe_accept( node, &FunctionDecl::returns );
581 maybe_accept( node, &FunctionDecl::type );
582 // First remember that we are now within a function.
583 ValueGuard< bool > oldInFunction( inFunction );
584 inFunction = true;
585 // The function body needs to have the same scope as parameters.
586 // A CompoundStmt will not enter a new scope if atFunctionTop is true.
587 ValueGuard< bool > oldAtFunctionTop( atFunctionTop );
588 atFunctionTop = true;
589 maybe_accept( node, &FunctionDecl::stmts );
590 maybe_accept( node, &FunctionDecl::attributes );
591 }
592 }
593 }
594
595 VISIT_END( DeclWithType, node );
596}
597
598//--------------------------------------------------------------------------
599// StructDecl
600template< typename core_t >
601const ast::Decl * ast::Pass< core_t >::visit( const ast::StructDecl * node ) {
602 VISIT_START( node );
603
604 // make up a forward declaration and add it before processing the members
605 // needs to be on the heap because addStruct saves the pointer
606 __pass::symtab::addStructFwd( core, 0, node );
607
608 if ( __visit_children() ) {
609 guard_symtab guard { * this };
610 maybe_accept( node, &StructDecl::params );
611 maybe_accept( node, &StructDecl::members );
612 maybe_accept( node, &StructDecl::attributes );
613 }
614
615 // this addition replaces the forward declaration
616 __pass::symtab::addStruct( core, 0, node );
617
618 VISIT_END( Decl, node );
619}
620
621//--------------------------------------------------------------------------
622// UnionDecl
623template< typename core_t >
624const ast::Decl * ast::Pass< core_t >::visit( const ast::UnionDecl * node ) {
625 VISIT_START( node );
626
627 // make up a forward declaration and add it before processing the members
628 __pass::symtab::addUnionFwd( core, 0, node );
629
630 if ( __visit_children() ) {
631 guard_symtab guard { * this };
632 maybe_accept( node, &UnionDecl::params );
633 maybe_accept( node, &UnionDecl::members );
634 maybe_accept( node, &UnionDecl::attributes );
635 }
636
637 __pass::symtab::addUnion( core, 0, node );
638
639 VISIT_END( Decl, node );
640}
641
642//--------------------------------------------------------------------------
643// EnumDecl
644template< typename core_t >
645const ast::Decl * ast::Pass< core_t >::visit( const ast::EnumDecl * node ) {
646 VISIT_START( node );
647
648 __pass::symtab::addEnum( core, 0, node );
649
650 if ( __visit_children() ) {
651 // unlike structs, traits, and unions, enums inject their members into the global scope
652 maybe_accept( node, &EnumDecl::params );
653 maybe_accept( node, &EnumDecl::members );
654 maybe_accept( node, &EnumDecl::attributes );
655 }
656
657 VISIT_END( Decl, node );
658}
659
660//--------------------------------------------------------------------------
661// TraitDecl
662template< typename core_t >
663const ast::Decl * ast::Pass< core_t >::visit( const ast::TraitDecl * node ) {
664 VISIT_START( node );
665
666 if ( __visit_children() ) {
667 guard_symtab guard { *this };
668 maybe_accept( node, &TraitDecl::params );
669 maybe_accept( node, &TraitDecl::members );
670 maybe_accept( node, &TraitDecl::attributes );
671 }
672
673 __pass::symtab::addTrait( core, 0, node );
674
675 VISIT_END( Decl, node );
676}
677
678//--------------------------------------------------------------------------
679// TypeDecl
680template< typename core_t >
681const ast::Decl * ast::Pass< core_t >::visit( const ast::TypeDecl * node ) {
682 VISIT_START( node );
683
684 if ( __visit_children() ) {
685 guard_symtab guard { *this };
686 maybe_accept( node, &TypeDecl::base );
687 }
688
689 // see A NOTE ON THE ORDER OF TRAVERSAL, above
690 // note that assertions come after the type is added to the symtab, since they are not part of the type proper
691 // and may depend on the type itself
692 __pass::symtab::addType( core, 0, node );
693
694 if ( __visit_children() ) {
695 maybe_accept( node, &TypeDecl::assertions );
696
697 {
698 guard_symtab guard { *this };
699 maybe_accept( node, &TypeDecl::init );
700 }
701 }
702
703 VISIT_END( Decl, node );
704}
705
706//--------------------------------------------------------------------------
707// TypedefDecl
708template< typename core_t >
709const ast::Decl * ast::Pass< core_t >::visit( const ast::TypedefDecl * node ) {
710 VISIT_START( node );
711
712 if ( __visit_children() ) {
713 guard_symtab guard { *this };
714 maybe_accept( node, &TypedefDecl::base );
715 }
716
717 __pass::symtab::addType( core, 0, node );
718
719 if ( __visit_children() ) {
720 maybe_accept( node, &TypedefDecl::assertions );
721 }
722
723 VISIT_END( Decl, node );
724}
725
726//--------------------------------------------------------------------------
727// AsmDecl
728template< typename core_t >
729const ast::AsmDecl * ast::Pass< core_t >::visit( const ast::AsmDecl * node ) {
730 VISIT_START( node );
731
732 if ( __visit_children() ) {
733 maybe_accept( node, &AsmDecl::stmt );
734 }
735
736 VISIT_END( AsmDecl, node );
737}
738
739//--------------------------------------------------------------------------
740// DirectiveDecl
741template< typename core_t >
742const ast::DirectiveDecl * ast::Pass< core_t >::visit( const ast::DirectiveDecl * node ) {
743 VISIT_START( node );
744
745 if ( __visit_children() ) {
746 maybe_accept( node, &DirectiveDecl::stmt );
747 }
748
749 VISIT_END( DirectiveDecl, node );
750}
751
752//--------------------------------------------------------------------------
753// StaticAssertDecl
754template< typename core_t >
755const ast::StaticAssertDecl * ast::Pass< core_t >::visit( const ast::StaticAssertDecl * node ) {
756 VISIT_START( node );
757
758 if ( __visit_children() ) {
759 maybe_accept( node, &StaticAssertDecl::cond );
760 maybe_accept( node, &StaticAssertDecl::msg );
761 }
762
763 VISIT_END( StaticAssertDecl, node );
764}
765
766//--------------------------------------------------------------------------
767// CompoundStmt
768template< typename core_t >
769const ast::CompoundStmt * ast::Pass< core_t >::visit( const ast::CompoundStmt * node ) {
770 VISIT_START( node );
771
772 if ( __visit_children() ) {
773 // Do not enter (or leave) a new scope if atFunctionTop. Remember to save the result.
774 auto guard1 = makeFuncGuard( [this, enterScope = !this->atFunctionTop]() {
775 if ( enterScope ) {
776 __pass::symtab::enter(core, 0);
777 __pass::scope::enter(core, 0);
778 }
779 }, [this, leaveScope = !this->atFunctionTop]() {
780 if ( leaveScope ) {
781 __pass::symtab::leave(core, 0);
782 __pass::scope::leave(core, 0);
783 }
784 });
785 ValueGuard< bool > guard2( atFunctionTop );
786 atFunctionTop = false;
787 guard_scope guard3 { *this };
788 maybe_accept( node, &CompoundStmt::kids );
789 }
790
791 VISIT_END( CompoundStmt, node );
792}
793
794//--------------------------------------------------------------------------
795// ExprStmt
796template< typename core_t >
797const ast::Stmt * ast::Pass< core_t >::visit( const ast::ExprStmt * node ) {
798 VISIT_START( node );
799
800 if ( __visit_children() ) {
801 maybe_accept( node, &ExprStmt::expr );
802 }
803
804 VISIT_END( Stmt, node );
805}
806
807//--------------------------------------------------------------------------
808// AsmStmt
809template< typename core_t >
810const ast::Stmt * ast::Pass< core_t >::visit( const ast::AsmStmt * node ) {
811 VISIT_START( node )
812
813 if ( __visit_children() ) {
814 maybe_accept( node, &AsmStmt::instruction );
815 maybe_accept( node, &AsmStmt::output );
816 maybe_accept( node, &AsmStmt::input );
817 maybe_accept( node, &AsmStmt::clobber );
818 }
819
820 VISIT_END( Stmt, node );
821}
822
823//--------------------------------------------------------------------------
824// DirectiveStmt
825template< typename core_t >
826const ast::Stmt * ast::Pass< core_t >::visit( const ast::DirectiveStmt * node ) {
827 VISIT_START( node )
828
829 VISIT_END( Stmt, node );
830}
831
832//--------------------------------------------------------------------------
833// IfStmt
834template< typename core_t >
835const ast::Stmt * ast::Pass< core_t >::visit( const ast::IfStmt * node ) {
836 VISIT_START( node );
837
838 if ( __visit_children() ) {
839 // if statements introduce a level of scope (for the initialization)
840 guard_symtab guard { *this };
841 maybe_accept( node, &IfStmt::inits );
842 maybe_accept( node, &IfStmt::cond );
843 maybe_accept_as_compound( node, &IfStmt::then );
844 maybe_accept_as_compound( node, &IfStmt::else_ );
845 }
846
847 VISIT_END( Stmt, node );
848}
849
850//--------------------------------------------------------------------------
851// WhileDoStmt
852template< typename core_t >
853const ast::Stmt * ast::Pass< core_t >::visit( const ast::WhileDoStmt * node ) {
854 VISIT_START( node );
855
856 if ( __visit_children() ) {
857 // while statements introduce a level of scope (for the initialization)
858 guard_symtab guard { *this };
859 maybe_accept( node, &WhileDoStmt::inits );
860 maybe_accept( node, &WhileDoStmt::cond );
861 maybe_accept_as_compound( node, &WhileDoStmt::body );
862 }
863
864 VISIT_END( Stmt, node );
865}
866
867//--------------------------------------------------------------------------
868// ForStmt
869template< typename core_t >
870const ast::Stmt * ast::Pass< core_t >::visit( const ast::ForStmt * node ) {
871 VISIT_START( node );
872
873 if ( __visit_children() ) {
874 // for statements introduce a level of scope (for the initialization)
875 guard_symtab guard { *this };
876 // xxx - old ast does not create WithStmtsToAdd scope for loop inits. should revisit this later.
877 maybe_accept( node, &ForStmt::inits );
878 maybe_accept( node, &ForStmt::cond );
879 maybe_accept( node, &ForStmt::inc );
880 maybe_accept_as_compound( node, &ForStmt::body );
881 }
882
883 VISIT_END( Stmt, node );
884}
885
886//--------------------------------------------------------------------------
887// SwitchStmt
888template< typename core_t >
889const ast::Stmt * ast::Pass< core_t >::visit( const ast::SwitchStmt * node ) {
890 VISIT_START( node );
891
892 if ( __visit_children() ) {
893 maybe_accept( node, &SwitchStmt::cond );
894 maybe_accept( node, &SwitchStmt::cases );
895 }
896
897 VISIT_END( Stmt, node );
898}
899
900//--------------------------------------------------------------------------
901// CaseClause
902template< typename core_t >
903const ast::CaseClause * ast::Pass< core_t >::visit( const ast::CaseClause * node ) {
904 VISIT_START( node );
905
906 if ( __visit_children() ) {
907 maybe_accept( node, &CaseClause::cond );
908 maybe_accept( node, &CaseClause::stmts );
909 }
910
911 VISIT_END( CaseClause, node );
912}
913
914//--------------------------------------------------------------------------
915// BranchStmt
916template< typename core_t >
917const ast::Stmt * ast::Pass< core_t >::visit( const ast::BranchStmt * node ) {
918 VISIT_START( node );
919 VISIT_END( Stmt, node );
920}
921
922//--------------------------------------------------------------------------
923// ReturnStmt
924template< typename core_t >
925const ast::Stmt * ast::Pass< core_t >::visit( const ast::ReturnStmt * node ) {
926 VISIT_START( node );
927
928 if ( __visit_children() ) {
929 maybe_accept( node, &ReturnStmt::expr );
930 }
931
932 VISIT_END( Stmt, node );
933}
934
935//--------------------------------------------------------------------------
936// ThrowStmt
937template< typename core_t >
938const ast::Stmt * ast::Pass< core_t >::visit( const ast::ThrowStmt * node ) {
939 VISIT_START( node );
940
941 if ( __visit_children() ) {
942 maybe_accept( node, &ThrowStmt::expr );
943 maybe_accept( node, &ThrowStmt::target );
944 }
945
946 VISIT_END( Stmt, node );
947}
948
949//--------------------------------------------------------------------------
950// TryStmt
951template< typename core_t >
952const ast::Stmt * ast::Pass< core_t >::visit( const ast::TryStmt * node ) {
953 VISIT_START( node );
954
955 if ( __visit_children() ) {
956 maybe_accept( node, &TryStmt::body );
957 maybe_accept( node, &TryStmt::handlers );
958 maybe_accept( node, &TryStmt::finally );
959 }
960
961 VISIT_END( Stmt, node );
962}
963
964//--------------------------------------------------------------------------
965// CatchClause
966template< typename core_t >
967const ast::CatchClause * ast::Pass< core_t >::visit( const ast::CatchClause * node ) {
968 VISIT_START( node );
969
970 if ( __visit_children() ) {
971 // catch statements introduce a level of scope (for the caught exception)
972 guard_symtab guard { *this };
973 maybe_accept( node, &CatchClause::decl );
974 maybe_accept( node, &CatchClause::cond );
975 maybe_accept_as_compound( node, &CatchClause::body );
976 }
977
978 VISIT_END( CatchClause, node );
979}
980
981//--------------------------------------------------------------------------
982// FinallyClause
983template< typename core_t >
984const ast::FinallyClause * ast::Pass< core_t >::visit( const ast::FinallyClause * node ) {
985 VISIT_START( node );
986
987 if ( __visit_children() ) {
988 maybe_accept( node, &FinallyClause::body );
989 }
990
991 VISIT_END( FinallyClause, node );
992}
993
994//--------------------------------------------------------------------------
995// FinallyStmt
996template< typename core_t >
997const ast::Stmt * ast::Pass< core_t >::visit( const ast::SuspendStmt * node ) {
998 VISIT_START( node );
999
1000 if ( __visit_children() ) {
1001 maybe_accept( node, &SuspendStmt::then );
1002 }
1003
1004 VISIT_END( Stmt, node );
1005}
1006
1007//--------------------------------------------------------------------------
1008// WaitForStmt
1009template< typename core_t >
1010const ast::Stmt * ast::Pass< core_t >::visit( const ast::WaitForStmt * node ) {
1011 VISIT_START( node );
1012
1013 if ( __visit_children() ) {
1014 maybe_accept( node, &WaitForStmt::clauses );
1015 maybe_accept( node, &WaitForStmt::timeout_time );
1016 maybe_accept( node, &WaitForStmt::timeout_stmt );
1017 maybe_accept( node, &WaitForStmt::timeout_cond );
1018 maybe_accept( node, &WaitForStmt::else_stmt );
1019 maybe_accept( node, &WaitForStmt::else_cond );
1020 }
1021
1022 VISIT_END( Stmt, node );
1023}
1024
1025//--------------------------------------------------------------------------
1026// WaitForClause
1027template< typename core_t >
1028const ast::WaitForClause * ast::Pass< core_t >::visit( const ast::WaitForClause * node ) {
1029 VISIT_START( node );
1030
1031 if ( __visit_children() ) {
1032 maybe_accept( node, &WaitForClause::target_func );
1033 maybe_accept( node, &WaitForClause::target_args );
1034 maybe_accept( node, &WaitForClause::stmt );
1035 maybe_accept( node, &WaitForClause::cond );
1036 }
1037
1038 VISIT_END( WaitForClause, node );
1039}
1040
1041//--------------------------------------------------------------------------
1042// WithStmt
1043template< typename core_t >
1044const ast::Decl * ast::Pass< core_t >::visit( const ast::WithStmt * node ) {
1045 VISIT_START( node );
1046
1047 if ( __visit_children() ) {
1048 maybe_accept( node, &WithStmt::exprs );
1049 {
1050 // catch statements introduce a level of scope (for the caught exception)
1051 guard_symtab guard { *this };
1052 __pass::symtab::addWith( core, 0, node->exprs, node );
1053 maybe_accept( node, &WithStmt::stmt );
1054 }
1055 }
1056
1057 VISIT_END( Stmt, node );
1058}
1059
1060//--------------------------------------------------------------------------
1061// NullStmt
1062template< typename core_t >
1063const ast::NullStmt * ast::Pass< core_t >::visit( const ast::NullStmt * node ) {
1064 VISIT_START( node );
1065 VISIT_END( NullStmt, node );
1066}
1067
1068//--------------------------------------------------------------------------
1069// DeclStmt
1070template< typename core_t >
1071const ast::Stmt * ast::Pass< core_t >::visit( const ast::DeclStmt * node ) {
1072 VISIT_START( node );
1073
1074 if ( __visit_children() ) {
1075 maybe_accept( node, &DeclStmt::decl );
1076 }
1077
1078 VISIT_END( Stmt, node );
1079}
1080
1081//--------------------------------------------------------------------------
1082// ImplicitCtorDtorStmt
1083template< typename core_t >
1084const ast::Stmt * ast::Pass< core_t >::visit( const ast::ImplicitCtorDtorStmt * node ) {
1085 VISIT_START( node );
1086
1087 // For now this isn't visited, it is unclear if this causes problem
1088 // if all tests are known to pass, remove this code
1089 if ( __visit_children() ) {
1090 maybe_accept( node, &ImplicitCtorDtorStmt::callStmt );
1091 }
1092
1093 VISIT_END( Stmt, node );
1094}
1095
1096//--------------------------------------------------------------------------
1097// MutexStmt
1098template< typename core_t >
1099const ast::Stmt * ast::Pass< core_t >::visit( const ast::MutexStmt * node ) {
1100 VISIT_START( node );
1101
1102 if ( __visit_children() ) {
1103 // mutex statements introduce a level of scope (for the initialization)
1104 guard_symtab guard { *this };
1105 maybe_accept( node, &MutexStmt::stmt );
1106 maybe_accept( node, &MutexStmt::mutexObjs );
1107 }
1108
1109 VISIT_END( Stmt, node );
1110}
1111
1112//--------------------------------------------------------------------------
1113// ApplicationExpr
1114template< typename core_t >
1115const ast::Expr * ast::Pass< core_t >::visit( const ast::ApplicationExpr * node ) {
1116 VISIT_START( node );
1117
1118 if ( __visit_children() ) {
1119 {
1120 guard_symtab guard { *this };
1121 maybe_accept( node, &ApplicationExpr::result );
1122 }
1123 maybe_accept( node, &ApplicationExpr::func );
1124 maybe_accept( node, &ApplicationExpr::args );
1125 }
1126
1127 VISIT_END( Expr, node );
1128}
1129
1130//--------------------------------------------------------------------------
1131// UntypedExpr
1132template< typename core_t >
1133const ast::Expr * ast::Pass< core_t >::visit( const ast::UntypedExpr * node ) {
1134 VISIT_START( node );
1135
1136 if ( __visit_children() ) {
1137 {
1138 guard_symtab guard { *this };
1139 maybe_accept( node, &UntypedExpr::result );
1140 }
1141
1142 maybe_accept( node, &UntypedExpr::args );
1143 }
1144
1145 VISIT_END( Expr, node );
1146}
1147
1148//--------------------------------------------------------------------------
1149// NameExpr
1150template< typename core_t >
1151const ast::Expr * ast::Pass< core_t >::visit( const ast::NameExpr * node ) {
1152 VISIT_START( node );
1153
1154 if ( __visit_children() ) {
1155 guard_symtab guard { *this };
1156 maybe_accept( node, &NameExpr::result );
1157 }
1158
1159 VISIT_END( Expr, node );
1160}
1161
1162//--------------------------------------------------------------------------
1163// CastExpr
1164template< typename core_t >
1165const ast::Expr * ast::Pass< core_t >::visit( const ast::CastExpr * node ) {
1166 VISIT_START( node );
1167
1168 if ( __visit_children() ) {
1169 {
1170 guard_symtab guard { *this };
1171 maybe_accept( node, &CastExpr::result );
1172 }
1173 maybe_accept( node, &CastExpr::arg );
1174 }
1175
1176 VISIT_END( Expr, node );
1177}
1178
1179//--------------------------------------------------------------------------
1180// KeywordCastExpr
1181template< typename core_t >
1182const ast::Expr * ast::Pass< core_t >::visit( const ast::KeywordCastExpr * node ) {
1183 VISIT_START( node );
1184
1185 if ( __visit_children() ) {
1186 {
1187 guard_symtab guard { *this };
1188 maybe_accept( node, &KeywordCastExpr::result );
1189 }
1190 maybe_accept( node, &KeywordCastExpr::arg );
1191 }
1192
1193 VISIT_END( Expr, node );
1194}
1195
1196//--------------------------------------------------------------------------
1197// VirtualCastExpr
1198template< typename core_t >
1199const ast::Expr * ast::Pass< core_t >::visit( const ast::VirtualCastExpr * node ) {
1200 VISIT_START( node );
1201
1202 if ( __visit_children() ) {
1203 {
1204 guard_symtab guard { *this };
1205 maybe_accept( node, &VirtualCastExpr::result );
1206 }
1207 maybe_accept( node, &VirtualCastExpr::arg );
1208 }
1209
1210 VISIT_END( Expr, node );
1211}
1212
1213//--------------------------------------------------------------------------
1214// AddressExpr
1215template< typename core_t >
1216const ast::Expr * ast::Pass< core_t >::visit( const ast::AddressExpr * node ) {
1217 VISIT_START( node );
1218
1219 if ( __visit_children() ) {
1220 {
1221 guard_symtab guard { *this };
1222 maybe_accept( node, &AddressExpr::result );
1223 }
1224 maybe_accept( node, &AddressExpr::arg );
1225 }
1226
1227 VISIT_END( Expr, node );
1228}
1229
1230//--------------------------------------------------------------------------
1231// LabelAddressExpr
1232template< typename core_t >
1233const ast::Expr * ast::Pass< core_t >::visit( const ast::LabelAddressExpr * node ) {
1234 VISIT_START( node );
1235
1236 if ( __visit_children() ) {
1237 guard_symtab guard { *this };
1238 maybe_accept( node, &LabelAddressExpr::result );
1239 }
1240
1241 VISIT_END( Expr, node );
1242}
1243
1244//--------------------------------------------------------------------------
1245// UntypedMemberExpr
1246template< typename core_t >
1247const ast::Expr * ast::Pass< core_t >::visit( const ast::UntypedMemberExpr * node ) {
1248 VISIT_START( node );
1249
1250 if ( __visit_children() ) {
1251 {
1252 guard_symtab guard { *this };
1253 maybe_accept( node, &UntypedMemberExpr::result );
1254 }
1255 maybe_accept( node, &UntypedMemberExpr::aggregate );
1256 maybe_accept( node, &UntypedMemberExpr::member );
1257 }
1258
1259 VISIT_END( Expr, node );
1260}
1261
1262//--------------------------------------------------------------------------
1263// MemberExpr
1264template< typename core_t >
1265const ast::Expr * ast::Pass< core_t >::visit( const ast::MemberExpr * node ) {
1266 VISIT_START( node );
1267
1268 if ( __visit_children() ) {
1269 {
1270 guard_symtab guard { *this };
1271 maybe_accept( node, &MemberExpr::result );
1272 }
1273 maybe_accept( node, &MemberExpr::aggregate );
1274 }
1275
1276 VISIT_END( Expr, node );
1277}
1278
1279//--------------------------------------------------------------------------
1280// VariableExpr
1281template< typename core_t >
1282const ast::Expr * ast::Pass< core_t >::visit( const ast::VariableExpr * node ) {
1283 VISIT_START( node );
1284
1285 if ( __visit_children() ) {
1286 guard_symtab guard { *this };
1287 maybe_accept( node, &VariableExpr::result );
1288 }
1289
1290 VISIT_END( Expr, node );
1291}
1292
1293//--------------------------------------------------------------------------
1294// ConstantExpr
1295template< typename core_t >
1296const ast::Expr * ast::Pass< core_t >::visit( const ast::ConstantExpr * node ) {
1297 VISIT_START( node );
1298
1299 if ( __visit_children() ) {
1300 guard_symtab guard { *this };
1301 maybe_accept( node, &ConstantExpr::result );
1302 }
1303
1304 VISIT_END( Expr, node );
1305}
1306
1307//--------------------------------------------------------------------------
1308// SizeofExpr
1309template< typename core_t >
1310const ast::Expr * ast::Pass< core_t >::visit( const ast::SizeofExpr * node ) {
1311 VISIT_START( node );
1312
1313 if ( __visit_children() ) {
1314 {
1315 guard_symtab guard { *this };
1316 maybe_accept( node, &SizeofExpr::result );
1317 }
1318 if ( node->type ) {
1319 maybe_accept( node, &SizeofExpr::type );
1320 } else {
1321 maybe_accept( node, &SizeofExpr::expr );
1322 }
1323 }
1324
1325 VISIT_END( Expr, node );
1326}
1327
1328//--------------------------------------------------------------------------
1329// AlignofExpr
1330template< typename core_t >
1331const ast::Expr * ast::Pass< core_t >::visit( const ast::AlignofExpr * node ) {
1332 VISIT_START( node );
1333
1334 if ( __visit_children() ) {
1335 {
1336 guard_symtab guard { *this };
1337 maybe_accept( node, &AlignofExpr::result );
1338 }
1339 if ( node->type ) {
1340 maybe_accept( node, &AlignofExpr::type );
1341 } else {
1342 maybe_accept( node, &AlignofExpr::expr );
1343 }
1344 }
1345
1346 VISIT_END( Expr, node );
1347}
1348
1349//--------------------------------------------------------------------------
1350// UntypedOffsetofExpr
1351template< typename core_t >
1352const ast::Expr * ast::Pass< core_t >::visit( const ast::UntypedOffsetofExpr * node ) {
1353 VISIT_START( node );
1354
1355 if ( __visit_children() ) {
1356 {
1357 guard_symtab guard { *this };
1358 maybe_accept( node, &UntypedOffsetofExpr::result );
1359 }
1360 maybe_accept( node, &UntypedOffsetofExpr::type );
1361 }
1362
1363 VISIT_END( Expr, node );
1364}
1365
1366//--------------------------------------------------------------------------
1367// OffsetofExpr
1368template< typename core_t >
1369const ast::Expr * ast::Pass< core_t >::visit( const ast::OffsetofExpr * node ) {
1370 VISIT_START( node );
1371
1372 if ( __visit_children() ) {
1373 {
1374 guard_symtab guard { *this };
1375 maybe_accept( node, &OffsetofExpr::result );
1376 }
1377 maybe_accept( node, &OffsetofExpr::type );
1378 }
1379
1380 VISIT_END( Expr, node );
1381}
1382
1383//--------------------------------------------------------------------------
1384// OffsetPackExpr
1385template< typename core_t >
1386const ast::Expr * ast::Pass< core_t >::visit( const ast::OffsetPackExpr * node ) {
1387 VISIT_START( node );
1388
1389 if ( __visit_children() ) {
1390 {
1391 guard_symtab guard { *this };
1392 maybe_accept( node, &OffsetPackExpr::result );
1393 }
1394 maybe_accept( node, &OffsetPackExpr::type );
1395 }
1396
1397 VISIT_END( Expr, node );
1398}
1399
1400//--------------------------------------------------------------------------
1401// LogicalExpr
1402template< typename core_t >
1403const ast::Expr * ast::Pass< core_t >::visit( const ast::LogicalExpr * node ) {
1404 VISIT_START( node );
1405
1406 if ( __visit_children() ) {
1407 {
1408 guard_symtab guard { *this };
1409 maybe_accept( node, &LogicalExpr::result );
1410 }
1411 maybe_accept( node, &LogicalExpr::arg1 );
1412 maybe_accept( node, &LogicalExpr::arg2 );
1413 }
1414
1415 VISIT_END( Expr, node );
1416}
1417
1418//--------------------------------------------------------------------------
1419// ConditionalExpr
1420template< typename core_t >
1421const ast::Expr * ast::Pass< core_t >::visit( const ast::ConditionalExpr * node ) {
1422 VISIT_START( node );
1423
1424 if ( __visit_children() ) {
1425 {
1426 guard_symtab guard { *this };
1427 maybe_accept( node, &ConditionalExpr::result );
1428 }
1429 maybe_accept( node, &ConditionalExpr::arg1 );
1430 maybe_accept( node, &ConditionalExpr::arg2 );
1431 maybe_accept( node, &ConditionalExpr::arg3 );
1432 }
1433
1434 VISIT_END( Expr, node );
1435}
1436
1437//--------------------------------------------------------------------------
1438// CommaExpr
1439template< typename core_t >
1440const ast::Expr * ast::Pass< core_t >::visit( const ast::CommaExpr * node ) {
1441 VISIT_START( node );
1442
1443 if ( __visit_children() ) {
1444 {
1445 guard_symtab guard { *this };
1446 maybe_accept( node, &CommaExpr::result );
1447 }
1448 maybe_accept( node, &CommaExpr::arg1 );
1449 maybe_accept( node, &CommaExpr::arg2 );
1450 }
1451
1452 VISIT_END( Expr, node );
1453}
1454
1455//--------------------------------------------------------------------------
1456// TypeExpr
1457template< typename core_t >
1458const ast::Expr * ast::Pass< core_t >::visit( const ast::TypeExpr * node ) {
1459 VISIT_START( node );
1460
1461 if ( __visit_children() ) {
1462 {
1463 guard_symtab guard { *this };
1464 maybe_accept( node, &TypeExpr::result );
1465 }
1466 maybe_accept( node, &TypeExpr::type );
1467 }
1468
1469 VISIT_END( Expr, node );
1470}
1471
1472//--------------------------------------------------------------------------
1473// DimensionExpr
1474template< typename core_t >
1475const ast::Expr * ast::Pass< core_t >::visit( const ast::DimensionExpr * node ) {
1476 VISIT_START( node );
1477
1478 if ( __visit_children() ) {
1479 guard_symtab guard { *this };
1480 maybe_accept( node, &DimensionExpr::result );
1481 }
1482
1483 VISIT_END( Expr, node );
1484}
1485
1486//--------------------------------------------------------------------------
1487// AsmExpr
1488template< typename core_t >
1489const ast::Expr * ast::Pass< core_t >::visit( const ast::AsmExpr * node ) {
1490 VISIT_START( node );
1491
1492 if ( __visit_children() ) {
1493 {
1494 guard_symtab guard { *this };
1495 maybe_accept( node, &AsmExpr::result );
1496 }
1497 maybe_accept( node, &AsmExpr::constraint );
1498 maybe_accept( node, &AsmExpr::operand );
1499 }
1500
1501 VISIT_END( Expr, node );
1502}
1503
1504//--------------------------------------------------------------------------
1505// ImplicitCopyCtorExpr
1506template< typename core_t >
1507const ast::Expr * ast::Pass< core_t >::visit( const ast::ImplicitCopyCtorExpr * node ) {
1508 VISIT_START( node );
1509
1510 if ( __visit_children() ) {
1511 {
1512 guard_symtab guard { *this };
1513 maybe_accept( node, &ImplicitCopyCtorExpr::result );
1514 }
1515 maybe_accept( node, &ImplicitCopyCtorExpr::callExpr );
1516 }
1517
1518 VISIT_END( Expr, node );
1519}
1520
1521//--------------------------------------------------------------------------
1522// ConstructorExpr
1523template< typename core_t >
1524const ast::Expr * ast::Pass< core_t >::visit( const ast::ConstructorExpr * node ) {
1525 VISIT_START( node );
1526
1527 if ( __visit_children() ) {
1528 {
1529 guard_symtab guard { *this };
1530 maybe_accept( node, &ConstructorExpr::result );
1531 }
1532 maybe_accept( node, &ConstructorExpr::callExpr );
1533 }
1534
1535 VISIT_END( Expr, node );
1536}
1537
1538//--------------------------------------------------------------------------
1539// CompoundLiteralExpr
1540template< typename core_t >
1541const ast::Expr * ast::Pass< core_t >::visit( const ast::CompoundLiteralExpr * node ) {
1542 VISIT_START( node );
1543
1544 if ( __visit_children() ) {
1545 {
1546 guard_symtab guard { *this };
1547 maybe_accept( node, &CompoundLiteralExpr::result );
1548 }
1549 maybe_accept( node, &CompoundLiteralExpr::init );
1550 }
1551
1552 VISIT_END( Expr, node );
1553}
1554
1555//--------------------------------------------------------------------------
1556// RangeExpr
1557template< typename core_t >
1558const ast::Expr * ast::Pass< core_t >::visit( const ast::RangeExpr * node ) {
1559 VISIT_START( node );
1560
1561 if ( __visit_children() ) {
1562 {
1563 guard_symtab guard { *this };
1564 maybe_accept( node, &RangeExpr::result );
1565 }
1566 maybe_accept( node, &RangeExpr::low );
1567 maybe_accept( node, &RangeExpr::high );
1568 }
1569
1570 VISIT_END( Expr, node );
1571}
1572
1573//--------------------------------------------------------------------------
1574// UntypedTupleExpr
1575template< typename core_t >
1576const ast::Expr * ast::Pass< core_t >::visit( const ast::UntypedTupleExpr * node ) {
1577 VISIT_START( node );
1578
1579 if ( __visit_children() ) {
1580 {
1581 guard_symtab guard { *this };
1582 maybe_accept( node, &UntypedTupleExpr::result );
1583 }
1584 maybe_accept( node, &UntypedTupleExpr::exprs );
1585 }
1586
1587 VISIT_END( Expr, node );
1588}
1589
1590//--------------------------------------------------------------------------
1591// TupleExpr
1592template< typename core_t >
1593const ast::Expr * ast::Pass< core_t >::visit( const ast::TupleExpr * node ) {
1594 VISIT_START( node );
1595
1596 if ( __visit_children() ) {
1597 {
1598 guard_symtab guard { *this };
1599 maybe_accept( node, &TupleExpr::result );
1600 }
1601 maybe_accept( node, &TupleExpr::exprs );
1602 }
1603
1604 VISIT_END( Expr, node );
1605}
1606
1607//--------------------------------------------------------------------------
1608// TupleIndexExpr
1609template< typename core_t >
1610const ast::Expr * ast::Pass< core_t >::visit( const ast::TupleIndexExpr * node ) {
1611 VISIT_START( node );
1612
1613 if ( __visit_children() ) {
1614 {
1615 guard_symtab guard { *this };
1616 maybe_accept( node, &TupleIndexExpr::result );
1617 }
1618 maybe_accept( node, &TupleIndexExpr::tuple );
1619 }
1620
1621 VISIT_END( Expr, node );
1622}
1623
1624//--------------------------------------------------------------------------
1625// TupleAssignExpr
1626template< typename core_t >
1627const ast::Expr * ast::Pass< core_t >::visit( const ast::TupleAssignExpr * node ) {
1628 VISIT_START( node );
1629
1630 if ( __visit_children() ) {
1631 {
1632 guard_symtab guard { *this };
1633 maybe_accept( node, &TupleAssignExpr::result );
1634 }
1635 maybe_accept( node, &TupleAssignExpr::stmtExpr );
1636 }
1637
1638 VISIT_END( Expr, node );
1639}
1640
1641//--------------------------------------------------------------------------
1642// StmtExpr
1643template< typename core_t >
1644const ast::Expr * ast::Pass< core_t >::visit( const ast::StmtExpr * node ) {
1645 VISIT_START( node );
1646
1647 if ( __visit_children() ) {
1648 // don't want statements from outer CompoundStmts to be added to this StmtExpr
1649 // get the stmts that will need to be spliced in
1650 auto stmts_before = __pass::stmtsToAddBefore( core, 0);
1651 auto stmts_after = __pass::stmtsToAddAfter ( core, 0);
1652
1653 // These may be modified by subnode but most be restored once we exit this statemnet.
1654 ValueGuardPtr< const ast::TypeSubstitution * > __old_env( __pass::typeSubs( core, 0 ) );
1655 ValueGuardPtr< typename std::remove_pointer< decltype(stmts_before) >::type > __old_decls_before( stmts_before );
1656 ValueGuardPtr< typename std::remove_pointer< decltype(stmts_after ) >::type > __old_decls_after ( stmts_after );
1657
1658 {
1659 guard_symtab guard { *this };
1660 maybe_accept( node, &StmtExpr::result );
1661 }
1662 maybe_accept( node, &StmtExpr::stmts );
1663 maybe_accept( node, &StmtExpr::returnDecls );
1664 maybe_accept( node, &StmtExpr::dtors );
1665 }
1666
1667 VISIT_END( Expr, node );
1668}
1669
1670//--------------------------------------------------------------------------
1671// UniqueExpr
1672template< typename core_t >
1673const ast::Expr * ast::Pass< core_t >::visit( const ast::UniqueExpr * node ) {
1674 VISIT_START( node );
1675
1676 if ( __visit_children() ) {
1677 {
1678 guard_symtab guard { *this };
1679 maybe_accept( node, &UniqueExpr::result );
1680 }
1681 maybe_accept( node, &UniqueExpr::expr );
1682 }
1683
1684 VISIT_END( Expr, node );
1685}
1686
1687//--------------------------------------------------------------------------
1688// UntypedInitExpr
1689template< typename core_t >
1690const ast::Expr * ast::Pass< core_t >::visit( const ast::UntypedInitExpr * node ) {
1691 VISIT_START( node );
1692
1693 if ( __visit_children() ) {
1694 {
1695 guard_symtab guard { *this };
1696 maybe_accept( node, &UntypedInitExpr::result );
1697 }
1698 maybe_accept( node, &UntypedInitExpr::expr );
1699 // not currently visiting initAlts, but this doesn't matter since this node is only used in the resolver.
1700 }
1701
1702 VISIT_END( Expr, node );
1703}
1704
1705//--------------------------------------------------------------------------
1706// InitExpr
1707template< typename core_t >
1708const ast::Expr * ast::Pass< core_t >::visit( const ast::InitExpr * node ) {
1709 VISIT_START( node );
1710
1711 if ( __visit_children() ) {
1712 {
1713 guard_symtab guard { *this };
1714 maybe_accept( node, &InitExpr::result );
1715 }
1716 maybe_accept( node, &InitExpr::expr );
1717 maybe_accept( node, &InitExpr::designation );
1718 }
1719
1720 VISIT_END( Expr, node );
1721}
1722
1723//--------------------------------------------------------------------------
1724// DeletedExpr
1725template< typename core_t >
1726const ast::Expr * ast::Pass< core_t >::visit( const ast::DeletedExpr * node ) {
1727 VISIT_START( node );
1728
1729 if ( __visit_children() ) {
1730 {
1731 guard_symtab guard { *this };
1732 maybe_accept( node, &DeletedExpr::result );
1733 }
1734 maybe_accept( node, &DeletedExpr::expr );
1735 // don't visit deleteStmt, because it is a pointer to somewhere else in the tree.
1736 }
1737
1738 VISIT_END( Expr, node );
1739}
1740
1741//--------------------------------------------------------------------------
1742// DefaultArgExpr
1743template< typename core_t >
1744const ast::Expr * ast::Pass< core_t >::visit( const ast::DefaultArgExpr * node ) {
1745 VISIT_START( node );
1746
1747 if ( __visit_children() ) {
1748 {
1749 guard_symtab guard { *this };
1750 maybe_accept( node, &DefaultArgExpr::result );
1751 }
1752 maybe_accept( node, &DefaultArgExpr::expr );
1753 }
1754
1755 VISIT_END( Expr, node );
1756}
1757
1758//--------------------------------------------------------------------------
1759// GenericExpr
1760template< typename core_t >
1761const ast::Expr * ast::Pass< core_t >::visit( const ast::GenericExpr * node ) {
1762 VISIT_START( node );
1763
1764 if ( __visit_children() ) {
1765 {
1766 guard_symtab guard { *this };
1767 maybe_accept( node, &GenericExpr::result );
1768 }
1769 maybe_accept( node, &GenericExpr::control );
1770
1771 std::vector<GenericExpr::Association> new_kids;
1772 new_kids.reserve(node->associations.size());
1773 bool mutated = false;
1774 for( const auto & assoc : node->associations ) {
1775 const Type * type = nullptr;
1776 if( assoc.type ) {
1777 guard_symtab guard { *this };
1778 type = assoc.type->accept( *this );
1779 if( type != assoc.type ) mutated = true;
1780 }
1781 const Expr * expr = nullptr;
1782 if( assoc.expr ) {
1783 expr = assoc.expr->accept( *this );
1784 if( expr != assoc.expr ) mutated = true;
1785 }
1786 new_kids.emplace_back( type, expr );
1787 }
1788
1789 if(mutated) {
1790 auto n = __pass::mutate<core_t>(node);
1791 n->associations = std::move( new_kids );
1792 node = n;
1793 }
1794 }
1795
1796 VISIT_END( Expr, node );
1797}
1798
1799//--------------------------------------------------------------------------
1800// VoidType
1801template< typename core_t >
1802const ast::Type * ast::Pass< core_t >::visit( const ast::VoidType * node ) {
1803 VISIT_START( node );
1804
1805 VISIT_END( Type, node );
1806}
1807
1808//--------------------------------------------------------------------------
1809// BasicType
1810template< typename core_t >
1811const ast::Type * ast::Pass< core_t >::visit( const ast::BasicType * node ) {
1812 VISIT_START( node );
1813
1814 VISIT_END( Type, node );
1815}
1816
1817//--------------------------------------------------------------------------
1818// PointerType
1819template< typename core_t >
1820const ast::Type * ast::Pass< core_t >::visit( const ast::PointerType * node ) {
1821 VISIT_START( node );
1822
1823 if ( __visit_children() ) {
1824 maybe_accept( node, &PointerType::dimension );
1825 maybe_accept( node, &PointerType::base );
1826 }
1827
1828 VISIT_END( Type, node );
1829}
1830
1831//--------------------------------------------------------------------------
1832// ArrayType
1833template< typename core_t >
1834const ast::Type * ast::Pass< core_t >::visit( const ast::ArrayType * node ) {
1835 VISIT_START( node );
1836
1837 if ( __visit_children() ) {
1838 maybe_accept( node, &ArrayType::dimension );
1839 maybe_accept( node, &ArrayType::base );
1840 }
1841
1842 VISIT_END( Type, node );
1843}
1844
1845//--------------------------------------------------------------------------
1846// ReferenceType
1847template< typename core_t >
1848const ast::Type * ast::Pass< core_t >::visit( const ast::ReferenceType * node ) {
1849 VISIT_START( node );
1850
1851 if ( __visit_children() ) {
1852 maybe_accept( node, &ReferenceType::base );
1853 }
1854
1855 VISIT_END( Type, node );
1856}
1857
1858//--------------------------------------------------------------------------
1859// QualifiedType
1860template< typename core_t >
1861const ast::Type * ast::Pass< core_t >::visit( const ast::QualifiedType * node ) {
1862 VISIT_START( node );
1863
1864 if ( __visit_children() ) {
1865 maybe_accept( node, &QualifiedType::parent );
1866 maybe_accept( node, &QualifiedType::child );
1867 }
1868
1869 VISIT_END( Type, node );
1870}
1871
1872//--------------------------------------------------------------------------
1873// FunctionType
1874template< typename core_t >
1875const ast::Type * ast::Pass< core_t >::visit( const ast::FunctionType * node ) {
1876 VISIT_START( node );
1877
1878 if ( __visit_children() ) {
1879 // guard_forall_subs forall_guard { *this, node };
1880 // mutate_forall( node );
1881 maybe_accept( node, &FunctionType::assertions );
1882 maybe_accept( node, &FunctionType::returns );
1883 maybe_accept( node, &FunctionType::params );
1884 }
1885
1886 VISIT_END( Type, node );
1887}
1888
1889//--------------------------------------------------------------------------
1890// StructInstType
1891template< typename core_t >
1892const ast::Type * ast::Pass< core_t >::visit( const ast::StructInstType * node ) {
1893 VISIT_START( node );
1894
1895 __pass::symtab::addStruct( core, 0, node->name );
1896
1897 if ( __visit_children() ) {
1898 guard_symtab guard { *this };
1899 maybe_accept( node, &StructInstType::params );
1900 }
1901
1902 VISIT_END( Type, node );
1903}
1904
1905//--------------------------------------------------------------------------
1906// UnionInstType
1907template< typename core_t >
1908const ast::Type * ast::Pass< core_t >::visit( const ast::UnionInstType * node ) {
1909 VISIT_START( node );
1910
1911 __pass::symtab::addUnion( core, 0, node->name );
1912
1913 if ( __visit_children() ) {
1914 guard_symtab guard { *this };
1915 maybe_accept( node, &UnionInstType::params );
1916 }
1917
1918 VISIT_END( Type, node );
1919}
1920
1921//--------------------------------------------------------------------------
1922// EnumInstType
1923template< typename core_t >
1924const ast::Type * ast::Pass< core_t >::visit( const ast::EnumInstType * node ) {
1925 VISIT_START( node );
1926
1927 if ( __visit_children() ) {
1928 maybe_accept( node, &EnumInstType::params );
1929 }
1930
1931 VISIT_END( Type, node );
1932}
1933
1934//--------------------------------------------------------------------------
1935// TraitInstType
1936template< typename core_t >
1937const ast::Type * ast::Pass< core_t >::visit( const ast::TraitInstType * node ) {
1938 VISIT_START( node );
1939
1940 if ( __visit_children() ) {
1941 maybe_accept( node, &TraitInstType::params );
1942 }
1943
1944 VISIT_END( Type, node );
1945}
1946
1947//--------------------------------------------------------------------------
1948// TypeInstType
1949template< typename core_t >
1950const ast::Type * ast::Pass< core_t >::visit( const ast::TypeInstType * node ) {
1951 VISIT_START( node );
1952
1953 if ( __visit_children() ) {
1954 {
1955 maybe_accept( node, &TypeInstType::params );
1956 }
1957 // ensure that base re-bound if doing substitution
1958 __pass::forall::replace( core, 0, node );
1959 }
1960
1961 VISIT_END( Type, node );
1962}
1963
1964//--------------------------------------------------------------------------
1965// TupleType
1966template< typename core_t >
1967const ast::Type * ast::Pass< core_t >::visit( const ast::TupleType * node ) {
1968 VISIT_START( node );
1969
1970 if ( __visit_children() ) {
1971 maybe_accept( node, &TupleType::types );
1972 maybe_accept( node, &TupleType::members );
1973 }
1974
1975 VISIT_END( Type, node );
1976}
1977
1978//--------------------------------------------------------------------------
1979// TypeofType
1980template< typename core_t >
1981const ast::Type * ast::Pass< core_t >::visit( const ast::TypeofType * node ) {
1982 VISIT_START( node );
1983
1984 if ( __visit_children() ) {
1985 maybe_accept( node, &TypeofType::expr );
1986 }
1987
1988 VISIT_END( Type, node );
1989}
1990
1991//--------------------------------------------------------------------------
1992// VTableType
1993template< typename core_t >
1994const ast::Type * ast::Pass< core_t >::visit( const ast::VTableType * node ) {
1995 VISIT_START( node );
1996
1997 if ( __visit_children() ) {
1998 maybe_accept( node, &VTableType::base );
1999 }
2000
2001 VISIT_END( Type, node );
2002}
2003
2004//--------------------------------------------------------------------------
2005// VarArgsType
2006template< typename core_t >
2007const ast::Type * ast::Pass< core_t >::visit( const ast::VarArgsType * node ) {
2008 VISIT_START( node );
2009
2010 VISIT_END( Type, node );
2011}
2012
2013//--------------------------------------------------------------------------
2014// ZeroType
2015template< typename core_t >
2016const ast::Type * ast::Pass< core_t >::visit( const ast::ZeroType * node ) {
2017 VISIT_START( node );
2018
2019 VISIT_END( Type, node );
2020}
2021
2022//--------------------------------------------------------------------------
2023// OneType
2024template< typename core_t >
2025const ast::Type * ast::Pass< core_t >::visit( const ast::OneType * node ) {
2026 VISIT_START( node );
2027
2028 VISIT_END( Type, node );
2029}
2030
2031//--------------------------------------------------------------------------
2032// GlobalScopeType
2033template< typename core_t >
2034const ast::Type * ast::Pass< core_t >::visit( const ast::GlobalScopeType * node ) {
2035 VISIT_START( node );
2036
2037 VISIT_END( Type, node );
2038}
2039
2040
2041//--------------------------------------------------------------------------
2042// Designation
2043template< typename core_t >
2044const ast::Designation * ast::Pass< core_t >::visit( const ast::Designation * node ) {
2045 VISIT_START( node );
2046
2047 if ( __visit_children() ) {
2048 maybe_accept( node, &Designation::designators );
2049 }
2050
2051 VISIT_END( Designation, node );
2052}
2053
2054//--------------------------------------------------------------------------
2055// SingleInit
2056template< typename core_t >
2057const ast::Init * ast::Pass< core_t >::visit( const ast::SingleInit * node ) {
2058 VISIT_START( node );
2059
2060 if ( __visit_children() ) {
2061 maybe_accept( node, &SingleInit::value );
2062 }
2063
2064 VISIT_END( Init, node );
2065}
2066
2067//--------------------------------------------------------------------------
2068// ListInit
2069template< typename core_t >
2070const ast::Init * ast::Pass< core_t >::visit( const ast::ListInit * node ) {
2071 VISIT_START( node );
2072
2073 if ( __visit_children() ) {
2074 maybe_accept( node, &ListInit::designations );
2075 maybe_accept( node, &ListInit::initializers );
2076 }
2077
2078 VISIT_END( Init, node );
2079}
2080
2081//--------------------------------------------------------------------------
2082// ConstructorInit
2083template< typename core_t >
2084const ast::Init * ast::Pass< core_t >::visit( const ast::ConstructorInit * node ) {
2085 VISIT_START( node );
2086
2087 if ( __visit_children() ) {
2088 maybe_accept( node, &ConstructorInit::ctor );
2089 maybe_accept( node, &ConstructorInit::dtor );
2090 maybe_accept( node, &ConstructorInit::init );
2091 }
2092
2093 VISIT_END( Init, node );
2094}
2095
2096//--------------------------------------------------------------------------
2097// Attribute
2098template< typename core_t >
2099const ast::Attribute * ast::Pass< core_t >::visit( const ast::Attribute * node ) {
2100 VISIT_START( node );
2101
2102 if ( __visit_children() ) {
2103 maybe_accept( node, &Attribute::params );
2104 }
2105
2106 VISIT_END( Attribute, node );
2107}
2108
2109//--------------------------------------------------------------------------
2110// TypeSubstitution
2111template< typename core_t >
2112const ast::TypeSubstitution * ast::Pass< core_t >::visit( const ast::TypeSubstitution * node ) {
2113 VISIT_START( node );
2114
2115 if ( __visit_children() ) {
2116 bool mutated = false;
2117 std::unordered_map< ast::TypeInstType::TypeEnvKey, ast::ptr< ast::Type > > new_map;
2118 for ( const auto & p : node->typeEnv ) {
2119 guard_symtab guard { *this };
2120 auto new_node = p.second->accept( *this );
2121 if (new_node != p.second) mutated = true;
2122 new_map.insert({ p.first, new_node });
2123 }
2124 if (mutated) {
2125 auto new_node = __pass::mutate<core_t>( node );
2126 new_node->typeEnv.swap( new_map );
2127 node = new_node;
2128 }
2129 }
2130
2131 VISIT_END( TypeSubstitution, node );
2132}
2133
2134#undef VISIT_START
2135#undef VISIT_END
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