source: src/AST/Pass.impl.hpp@ 148ba7d

ADT ast-experimental enum forall-pointer-decay pthread-emulation qualifiedEnum
Last change on this file since 148ba7d was 6cebfef, checked in by caparsons <caparson@…>, 4 years ago

added mutex stmt monitor
  • Property mode set to 100644
File size: 58.5 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( code... ) \
37 /* if this node should visit its children */ \
38 if ( __visit_children() ) { \
39 /* visit the children */ \
40 code \
41 }
42
43#define VISIT_END( type, node ) \
44 /* call the implementation of the postvisit of this pass */ \
45 auto __return = __pass::postvisit( core, node, 0 ); \
46 assertf(__return, "post visit should never return null"); \
47 /* end tracing memory allocation if requested by this pass */ \
48 __pass::endTrace( core, 0 ); \
49 return __return;
50
51#ifdef PEDANTIC_PASS_ASSERT
52#define __pedantic_pass_assert(...) assert (__VA_ARGS__)
53#define __pedantic_pass_assertf(...) assertf(__VA_ARGS__)
54#else
55#define __pedantic_pass_assert(...)
56#define __pedantic_pass_assertf(...)
57#endif
58
59namespace ast {
60 template<typename node_t>
61 node_t * shallowCopy( const node_t * node );
62
63 namespace __pass {
64 // Check if this is either a null pointer or a pointer to an empty container
65 template<typename T>
66 static inline bool empty( T * ptr ) {
67 return !ptr || ptr->empty();
68 }
69
70 template< typename core_t, typename node_t >
71 static inline node_t* mutate(const node_t *node) {
72 return std::is_base_of<PureVisitor, core_t>::value ? ::ast::shallowCopy(node) : ::ast::mutate(node);
73 }
74
75 //------------------------------
76 template<typename it_t, template <class...> class container_t>
77 static inline void take_all( it_t it, container_t<ast::ptr<ast::Decl>> * decls, bool * mutated = nullptr ) {
78 if(empty(decls)) return;
79
80 std::transform(decls->begin(), decls->end(), it, [](const ast::Decl * decl) -> auto {
81 return new DeclStmt( decl->location, decl );
82 });
83 decls->clear();
84 if(mutated) *mutated = true;
85 }
86
87 template<typename it_t, template <class...> class container_t>
88 static inline void take_all( it_t it, container_t<ast::ptr<ast::Stmt>> * decls, bool * mutated = nullptr ) {
89 if(empty(decls)) return;
90
91 std::move(decls->begin(), decls->end(), it);
92 decls->clear();
93 if(mutated) *mutated = true;
94 }
95
96 //------------------------------
97 /// Check if should be skipped, different for pointers and containers
98 template<typename node_t>
99 bool skip( const ast::ptr<node_t> & val) {
100 return !val;
101 }
102
103 template< template <class...> class container_t, typename node_t >
104 bool skip( const container_t<ast::ptr< node_t >> & val ) {
105 return val.empty();
106 }
107
108 //------------------------------
109 /// Get the value to visit, different for pointers and containers
110 template<typename node_t>
111 auto get( const ast::ptr<node_t> & val, int ) -> decltype(val.get()) {
112 return val.get();
113 }
114
115 template<typename node_t>
116 const node_t & get( const node_t & val, long) {
117 return val;
118 }
119
120
121 //------------------------------
122 /// Check if value was mutated, different for pointers and containers
123 template<typename lhs_t, typename rhs_t>
124 bool differs( const lhs_t * old_val, const rhs_t * new_val ) {
125 return old_val != new_val;
126 }
127
128 template< template <class...> class container_t, typename node_t >
129 bool differs( const container_t<ast::ptr< node_t >> &, const container_t<ast::ptr< node_t >> & new_val ) {
130 return !new_val.empty();
131 }
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 std::enable_if<
138 !std::is_base_of<ast::Expr, node_t>::value &&
139 !std::is_base_of<ast::Stmt, node_t>::value
140 , decltype( node->accept(*this) )
141 >::type
142 {
143 __pedantic_pass_assert( __visit_children() );
144 __pedantic_pass_assert( node );
145
146 static_assert( !std::is_base_of<ast::Expr, node_t>::value, "ERROR");
147 static_assert( !std::is_base_of<ast::Stmt, node_t>::value, "ERROR");
148
149 return node->accept( *this );
150 }
151
152 template< typename core_t >
153 const 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 return expr->accept( *this );
163 }
164
165 template< typename core_t >
166 const ast::Stmt * ast::Pass< core_t >::call_accept( const ast::Stmt * stmt ) {
167 __pedantic_pass_assert( __visit_children() );
168 __pedantic_pass_assert( stmt );
169
170 return stmt->accept( *this );
171 }
172
173 template< typename core_t >
174 const ast::Stmt * ast::Pass< core_t >::call_accept_as_compound( const ast::Stmt * stmt ) {
175 __pedantic_pass_assert( __visit_children() );
176 __pedantic_pass_assert( stmt );
177
178 // add a few useful symbols to the scope
179 using __pass::empty;
180
181 // get the stmts/decls that will need to be spliced in
182 auto stmts_before = __pass::stmtsToAddBefore( core, 0);
183 auto stmts_after = __pass::stmtsToAddAfter ( core, 0);
184 auto decls_before = __pass::declsToAddBefore( core, 0);
185 auto decls_after = __pass::declsToAddAfter ( core, 0);
186
187 // These may be modified by subnode but most be restored once we exit this statemnet.
188 ValueGuardPtr< const ast::TypeSubstitution * > __old_env ( __pass::typeSubs( core, 0 ) );
189 ValueGuardPtr< typename std::remove_pointer< decltype(stmts_before) >::type > __old_decls_before( stmts_before );
190 ValueGuardPtr< typename std::remove_pointer< decltype(stmts_after ) >::type > __old_decls_after ( stmts_after );
191 ValueGuardPtr< typename std::remove_pointer< decltype(decls_before) >::type > __old_stmts_before( decls_before );
192 ValueGuardPtr< typename std::remove_pointer< decltype(decls_after ) >::type > __old_stmts_after ( decls_after );
193
194 // Now is the time to actually visit the node
195 const ast::Stmt * nstmt = stmt->accept( *this );
196
197 // If the pass doesn't want to add anything then we are done
198 if( empty(stmts_before) && empty(stmts_after) && empty(decls_before) && empty(decls_after) ) {
199 return nstmt;
200 }
201
202 // Make sure that it is either adding statements or declartions but not both
203 // this is because otherwise the order would be awkward to predict
204 assert(( empty( stmts_before ) && empty( stmts_after ))
205 || ( empty( decls_before ) && empty( decls_after )) );
206
207 // Create a new Compound Statement to hold the new decls/stmts
208 ast::CompoundStmt * compound = new ast::CompoundStmt( stmt->location );
209
210 // Take all the declarations that go before
211 __pass::take_all( std::back_inserter( compound->kids ), decls_before );
212 __pass::take_all( std::back_inserter( compound->kids ), stmts_before );
213
214 // Insert the original declaration
215 compound->kids.emplace_back( nstmt );
216
217 // Insert all the declarations that go before
218 __pass::take_all( std::back_inserter( compound->kids ), decls_after );
219 __pass::take_all( std::back_inserter( compound->kids ), stmts_after );
220
221 return compound;
222 }
223
224 template< typename core_t >
225 template< template <class...> class container_t >
226 container_t< ptr<Stmt> > ast::Pass< core_t >::call_accept( const container_t< ptr<Stmt> > & statements ) {
227 __pedantic_pass_assert( __visit_children() );
228 if( statements.empty() ) return {};
229
230 // We are going to aggregate errors for all these statements
231 SemanticErrorException errors;
232
233 // add a few useful symbols to the scope
234 using __pass::empty;
235
236 // get the stmts/decls that will need to be spliced in
237 auto stmts_before = __pass::stmtsToAddBefore( core, 0);
238 auto stmts_after = __pass::stmtsToAddAfter ( core, 0);
239 auto decls_before = __pass::declsToAddBefore( core, 0);
240 auto decls_after = __pass::declsToAddAfter ( core, 0);
241
242 // These may be modified by subnode but most be restored once we exit this statemnet.
243 ValueGuardPtr< typename std::remove_pointer< decltype(stmts_before) >::type > __old_decls_before( stmts_before );
244 ValueGuardPtr< typename std::remove_pointer< decltype(stmts_after ) >::type > __old_decls_after ( stmts_after );
245 ValueGuardPtr< typename std::remove_pointer< decltype(decls_before) >::type > __old_stmts_before( decls_before );
246 ValueGuardPtr< typename std::remove_pointer< decltype(decls_after ) >::type > __old_stmts_after ( decls_after );
247
248 // update pass statitistics
249 pass_visitor_stats.depth++;
250 pass_visitor_stats.max->push(pass_visitor_stats.depth);
251 pass_visitor_stats.avg->push(pass_visitor_stats.depth);
252
253 bool mutated = false;
254 container_t< ptr<Stmt> > new_kids;
255 for( const Stmt * stmt : statements ) {
256 try {
257 __pedantic_pass_assert( stmt );
258 const ast::Stmt * new_stmt = stmt->accept( *this );
259 assert( new_stmt );
260 if(new_stmt != stmt ) mutated = true;
261
262 // Make sure that it is either adding statements or declartions but not both
263 // this is because otherwise the order would be awkward to predict
264 assert(( empty( stmts_before ) && empty( stmts_after ))
265 || ( empty( decls_before ) && empty( decls_after )) );
266
267
268
269 // Take all the statements which should have gone after, N/A for first iteration
270 __pass::take_all( std::back_inserter( new_kids ), decls_before, &mutated );
271 __pass::take_all( std::back_inserter( new_kids ), stmts_before, &mutated );
272
273 // Now add the statement if there is one
274 new_kids.emplace_back( new_stmt );
275
276 // Take all the declarations that go before
277 __pass::take_all( std::back_inserter( new_kids ), decls_after, &mutated );
278 __pass::take_all( std::back_inserter( new_kids ), stmts_after, &mutated );
279 }
280 catch ( SemanticErrorException &e ) {
281 errors.append( e );
282 }
283 }
284 pass_visitor_stats.depth--;
285 if ( !errors.isEmpty() ) { throw errors; }
286
287 return mutated ? new_kids : container_t< ptr<Stmt> >();
288 }
289
290 template< typename core_t >
291 template< template <class...> class container_t, typename node_t >
292 container_t< ast::ptr<node_t> > ast::Pass< core_t >::call_accept( const container_t< ast::ptr<node_t> > & container ) {
293 __pedantic_pass_assert( __visit_children() );
294 if( container.empty() ) return {};
295 SemanticErrorException errors;
296
297 pass_visitor_stats.depth++;
298 pass_visitor_stats.max->push(pass_visitor_stats.depth);
299 pass_visitor_stats.avg->push(pass_visitor_stats.depth);
300
301 bool mutated = false;
302 container_t< ast::ptr<node_t> > new_kids;
303 for ( const node_t * node : container ) {
304 try {
305 __pedantic_pass_assert( node );
306 const node_t * new_stmt = strict_dynamic_cast< const node_t * >( node->accept( *this ) );
307 if(new_stmt != node ) mutated = true;
308
309 new_kids.emplace_back( new_stmt );
310 }
311 catch( SemanticErrorException &e ) {
312 errors.append( e );
313 }
314 }
315 pass_visitor_stats.depth--;
316 if ( ! errors.isEmpty() ) { throw errors; }
317
318 return mutated ? new_kids : container_t< ast::ptr<node_t> >();
319 }
320
321 template< typename core_t >
322 template<typename node_t, typename parent_t, typename child_t>
323 void ast::Pass< core_t >::maybe_accept(
324 const node_t * & parent,
325 child_t parent_t::*child
326 ) {
327 static_assert( std::is_base_of<parent_t, node_t>::value, "Error deducing member object" );
328
329 if(__pass::skip(parent->*child)) return;
330 const auto & old_val = __pass::get(parent->*child, 0);
331
332 static_assert( !std::is_same<const ast::Node * &, decltype(old_val)>::value, "ERROR");
333
334 auto new_val = call_accept( old_val );
335
336 static_assert( !std::is_same<const ast::Node *, decltype(new_val)>::value || std::is_same<int, decltype(old_val)>::value, "ERROR");
337
338 if( __pass::differs(old_val, new_val) ) {
339 auto new_parent = __pass::mutate<core_t>(parent);
340 new_parent->*child = new_val;
341 parent = new_parent;
342 }
343 }
344
345 template< typename core_t >
346 template<typename node_t, typename parent_t, typename child_t>
347 void ast::Pass< core_t >::maybe_accept_as_compound(
348 const node_t * & parent,
349 child_t parent_t::*child
350 ) {
351 static_assert( std::is_base_of<parent_t, node_t>::value, "Error deducing member object" );
352
353 if(__pass::skip(parent->*child)) return;
354 const auto & old_val = __pass::get(parent->*child, 0);
355
356 static_assert( !std::is_same<const ast::Node * &, decltype(old_val)>::value, "ERROR");
357
358 auto new_val = call_accept_as_compound( old_val );
359
360 static_assert( !std::is_same<const ast::Node *, decltype(new_val)>::value || std::is_same<int, decltype(old_val)>::value, "ERROR");
361
362 if( __pass::differs(old_val, new_val) ) {
363 auto new_parent = __pass::mutate<core_t>(parent);
364 new_parent->*child = new_val;
365 parent = new_parent;
366 }
367 }
368
369}
370
371//------------------------------------------------------------------------------------------------------------------------------------------------------------------------
372//========================================================================================================================================================================
373//========================================================================================================================================================================
374//========================================================================================================================================================================
375//========================================================================================================================================================================
376//========================================================================================================================================================================
377//------------------------------------------------------------------------------------------------------------------------------------------------------------------------
378
379template< typename core_t >
380inline void ast::accept_all( std::list< ast::ptr<ast::Decl> > & decls, ast::Pass< core_t > & visitor ) {
381 // We are going to aggregate errors for all these statements
382 SemanticErrorException errors;
383
384 // add a few useful symbols to the scope
385 using __pass::empty;
386
387 // get the stmts/decls that will need to be spliced in
388 auto decls_before = __pass::declsToAddBefore( visitor.core, 0);
389 auto decls_after = __pass::declsToAddAfter ( visitor.core, 0);
390
391 // update pass statitistics
392 pass_visitor_stats.depth++;
393 pass_visitor_stats.max->push(pass_visitor_stats.depth);
394 pass_visitor_stats.avg->push(pass_visitor_stats.depth);
395
396 for ( std::list< ast::ptr<ast::Decl> >::iterator i = decls.begin(); ; ++i ) {
397 // splice in new declarations after previous decl
398 if ( !empty( decls_after ) ) { decls.splice( i, *decls_after ); }
399
400 if ( i == decls.end() ) break;
401
402 try {
403 // run visitor on declaration
404 ast::ptr<ast::Decl> & node = *i;
405 assert( node );
406 node = node->accept( visitor );
407 }
408 catch( SemanticErrorException &e ) {
409 if (__pass::on_error (visitor.core, *i, 0))
410 errors.append( e );
411 }
412
413 // splice in new declarations before current decl
414 if ( !empty( decls_before ) ) { decls.splice( i, *decls_before ); }
415 }
416 pass_visitor_stats.depth--;
417 if ( !errors.isEmpty() ) { throw errors; }
418}
419
420template< typename core_t >
421inline void ast::accept_all( ast::TranslationUnit & unit, ast::Pass< core_t > & visitor ) {
422 return ast::accept_all( unit.decls, visitor );
423}
424
425// A NOTE ON THE ORDER OF TRAVERSAL
426//
427// Types and typedefs have their base types visited before they are added to the type table. This is ok, since there is
428// no such thing as a recursive type or typedef.
429//
430// typedef struct { T *x; } T; // never allowed
431//
432// for structs/unions, it is possible to have recursion, so the decl should be added as if it's incomplete to begin, the
433// members are traversed, and then the complete type should be added (assuming the type is completed by this particular
434// declaration).
435//
436// struct T { struct T *x; }; // allowed
437//
438// It is important to add the complete type to the symbol table *after* the members/base has been traversed, since that
439// traversal may modify the definition of the type and these modifications should be visible when the symbol table is
440// queried later in this pass.
441
442//--------------------------------------------------------------------------
443// ObjectDecl
444template< typename core_t >
445const ast::DeclWithType * ast::Pass< core_t >::visit( const ast::ObjectDecl * node ) {
446 VISIT_START( node );
447
448 VISIT(
449 {
450 guard_symtab guard { *this };
451 maybe_accept( node, &ObjectDecl::type );
452 }
453 maybe_accept( node, &ObjectDecl::init );
454 maybe_accept( node, &ObjectDecl::bitfieldWidth );
455 maybe_accept( node, &ObjectDecl::attributes );
456 )
457
458 __pass::symtab::addId( core, 0, node );
459
460 VISIT_END( DeclWithType, node );
461}
462
463//--------------------------------------------------------------------------
464// FunctionDecl
465template< typename core_t >
466const ast::DeclWithType * ast::Pass< core_t >::visit( const ast::FunctionDecl * node ) {
467 VISIT_START( node );
468
469 __pass::symtab::addId( core, 0, node );
470
471 VISIT(maybe_accept( node, &FunctionDecl::withExprs );)
472 {
473 // with clause introduces a level of scope (for the with expression members).
474 // with clause exprs are added to the symbol table before parameters so that parameters
475 // shadow with exprs and not the other way around.
476 guard_symtab guard { *this };
477 __pass::symtab::addWith( core, 0, node->withExprs, node );
478 {
479 guard_symtab guard { *this };
480 // implicit add __func__ identifier as specified in the C manual 6.4.2.2
481 static ast::ptr< ast::ObjectDecl > func{ new ast::ObjectDecl{
482 CodeLocation{}, "__func__",
483 new ast::ArrayType{
484 new ast::BasicType{ ast::BasicType::Char, ast::CV::Const },
485 nullptr, VariableLen, DynamicDim
486 }
487 } };
488 __pass::symtab::addId( core, 0, func );
489 VISIT(
490 // parameter declarations
491 maybe_accept( node, &FunctionDecl::params );
492 maybe_accept( node, &FunctionDecl::returns );
493 // type params and assertions
494 maybe_accept( node, &FunctionDecl::type_params );
495 maybe_accept( node, &FunctionDecl::assertions );
496 // First remember that we are now within a function.
497 ValueGuard< bool > oldInFunction( inFunction );
498 inFunction = true;
499 // The function body needs to have the same scope as parameters.
500 // A CompoundStmt will not enter a new scope if atFunctionTop is true.
501 ValueGuard< bool > oldAtFunctionTop( atFunctionTop );
502 atFunctionTop = true;
503 maybe_accept( node, &FunctionDecl::stmts );
504 maybe_accept( node, &FunctionDecl::attributes );
505 )
506 }
507 }
508
509 VISIT_END( DeclWithType, node );
510}
511
512//--------------------------------------------------------------------------
513// StructDecl
514template< typename core_t >
515const ast::Decl * ast::Pass< core_t >::visit( const ast::StructDecl * node ) {
516 VISIT_START( node );
517
518 // make up a forward declaration and add it before processing the members
519 // needs to be on the heap because addStruct saves the pointer
520 __pass::symtab::addStructFwd( core, 0, node );
521
522 VISIT({
523 guard_symtab guard { * this };
524 maybe_accept( node, &StructDecl::params );
525 maybe_accept( node, &StructDecl::members );
526 maybe_accept( node, &StructDecl::attributes );
527 })
528
529 // this addition replaces the forward declaration
530 __pass::symtab::addStruct( core, 0, node );
531
532 VISIT_END( Decl, node );
533}
534
535//--------------------------------------------------------------------------
536// UnionDecl
537template< typename core_t >
538const ast::Decl * ast::Pass< core_t >::visit( const ast::UnionDecl * node ) {
539 VISIT_START( node );
540
541 // make up a forward declaration and add it before processing the members
542 __pass::symtab::addUnionFwd( core, 0, node );
543
544 VISIT({
545 guard_symtab guard { * this };
546 maybe_accept( node, &UnionDecl::params );
547 maybe_accept( node, &UnionDecl::members );
548 maybe_accept( node, &UnionDecl::attributes );
549 })
550
551 __pass::symtab::addUnion( core, 0, node );
552
553 VISIT_END( Decl, node );
554}
555
556//--------------------------------------------------------------------------
557// EnumDecl
558template< typename core_t >
559const ast::Decl * ast::Pass< core_t >::visit( const ast::EnumDecl * node ) {
560 VISIT_START( node );
561
562 __pass::symtab::addEnum( core, 0, node );
563
564 VISIT(
565 // unlike structs, traits, and unions, enums inject their members into the global scope
566 maybe_accept( node, &EnumDecl::params );
567 maybe_accept( node, &EnumDecl::members );
568 maybe_accept( node, &EnumDecl::attributes );
569 )
570
571 VISIT_END( Decl, node );
572}
573
574//--------------------------------------------------------------------------
575// TraitDecl
576template< typename core_t >
577const ast::Decl * ast::Pass< core_t >::visit( const ast::TraitDecl * node ) {
578 VISIT_START( node );
579
580 VISIT({
581 guard_symtab guard { *this };
582 maybe_accept( node, &TraitDecl::params );
583 maybe_accept( node, &TraitDecl::members );
584 maybe_accept( node, &TraitDecl::attributes );
585 })
586
587 __pass::symtab::addTrait( core, 0, node );
588
589 VISIT_END( Decl, node );
590}
591
592//--------------------------------------------------------------------------
593// TypeDecl
594template< typename core_t >
595const ast::Decl * ast::Pass< core_t >::visit( const ast::TypeDecl * node ) {
596 VISIT_START( node );
597
598 VISIT({
599 guard_symtab guard { *this };
600 maybe_accept( node, &TypeDecl::base );
601 })
602
603 // see A NOTE ON THE ORDER OF TRAVERSAL, above
604 // note that assertions come after the type is added to the symtab, since they are not part of the type proper
605 // and may depend on the type itself
606 __pass::symtab::addType( core, 0, node );
607
608 VISIT(
609 maybe_accept( node, &TypeDecl::assertions );
610
611 {
612 guard_symtab guard { *this };
613 maybe_accept( node, &TypeDecl::init );
614 }
615 )
616
617 VISIT_END( Decl, node );
618}
619
620//--------------------------------------------------------------------------
621// TypedefDecl
622template< typename core_t >
623const ast::Decl * ast::Pass< core_t >::visit( const ast::TypedefDecl * node ) {
624 VISIT_START( node );
625
626 VISIT({
627 guard_symtab guard { *this };
628 maybe_accept( node, &TypedefDecl::base );
629 })
630
631 __pass::symtab::addType( core, 0, node );
632
633 VISIT( maybe_accept( node, &TypedefDecl::assertions ); )
634
635 VISIT_END( Decl, node );
636}
637
638//--------------------------------------------------------------------------
639// AsmDecl
640template< typename core_t >
641const ast::AsmDecl * ast::Pass< core_t >::visit( const ast::AsmDecl * node ) {
642 VISIT_START( node );
643
644 VISIT(
645 maybe_accept( node, &AsmDecl::stmt );
646 )
647
648 VISIT_END( AsmDecl, node );
649}
650
651//--------------------------------------------------------------------------
652// DirectiveDecl
653template< typename core_t >
654const ast::DirectiveDecl * ast::Pass< core_t >::visit( const ast::DirectiveDecl * node ) {
655 VISIT_START( node );
656
657 VISIT(
658 maybe_accept( node, &DirectiveDecl::stmt );
659 )
660
661 VISIT_END( DirectiveDecl, node );
662}
663
664//--------------------------------------------------------------------------
665// StaticAssertDecl
666template< typename core_t >
667const ast::StaticAssertDecl * ast::Pass< core_t >::visit( const ast::StaticAssertDecl * node ) {
668 VISIT_START( node );
669
670 VISIT(
671 maybe_accept( node, &StaticAssertDecl::cond );
672 maybe_accept( node, &StaticAssertDecl::msg );
673 )
674
675 VISIT_END( StaticAssertDecl, node );
676}
677
678//--------------------------------------------------------------------------
679// CompoundStmt
680template< typename core_t >
681const ast::CompoundStmt * ast::Pass< core_t >::visit( const ast::CompoundStmt * node ) {
682 VISIT_START( node );
683 VISIT(
684 // Do not enter (or leave) a new scope if atFunctionTop. Remember to save the result.
685 auto guard1 = makeFuncGuard( [this, enterScope = !this->atFunctionTop]() {
686 if ( enterScope ) {
687 __pass::symtab::enter(core, 0);
688 __pass::scope::enter(core, 0);
689 }
690 }, [this, leaveScope = !this->atFunctionTop]() {
691 if ( leaveScope ) {
692 __pass::symtab::leave(core, 0);
693 __pass::scope::leave(core, 0);
694 }
695 });
696 ValueGuard< bool > guard2( atFunctionTop );
697 atFunctionTop = false;
698 guard_scope guard3 { *this };
699 maybe_accept( node, &CompoundStmt::kids );
700 )
701 VISIT_END( CompoundStmt, node );
702}
703
704//--------------------------------------------------------------------------
705// ExprStmt
706template< typename core_t >
707const ast::Stmt * ast::Pass< core_t >::visit( const ast::ExprStmt * node ) {
708 VISIT_START( node );
709
710 VISIT(
711 maybe_accept( node, &ExprStmt::expr );
712 )
713
714 VISIT_END( Stmt, node );
715}
716
717//--------------------------------------------------------------------------
718// AsmStmt
719template< typename core_t >
720const ast::Stmt * ast::Pass< core_t >::visit( const ast::AsmStmt * node ) {
721 VISIT_START( node )
722
723 VISIT(
724 maybe_accept( node, &AsmStmt::instruction );
725 maybe_accept( node, &AsmStmt::output );
726 maybe_accept( node, &AsmStmt::input );
727 maybe_accept( node, &AsmStmt::clobber );
728 )
729
730 VISIT_END( Stmt, node );
731}
732
733//--------------------------------------------------------------------------
734// DirectiveStmt
735template< typename core_t >
736const ast::Stmt * ast::Pass< core_t >::visit( const ast::DirectiveStmt * node ) {
737 VISIT_START( node )
738
739 VISIT_END( Stmt, node );
740}
741
742//--------------------------------------------------------------------------
743// IfStmt
744template< typename core_t >
745const ast::Stmt * ast::Pass< core_t >::visit( const ast::IfStmt * node ) {
746 VISIT_START( node );
747
748 VISIT({
749 // if statements introduce a level of scope (for the initialization)
750 guard_symtab guard { *this };
751 maybe_accept( node, &IfStmt::inits );
752 maybe_accept( node, &IfStmt::cond );
753 maybe_accept_as_compound( node, &IfStmt::thenPart );
754 maybe_accept_as_compound( node, &IfStmt::elsePart );
755 })
756
757 VISIT_END( Stmt, node );
758}
759
760//--------------------------------------------------------------------------
761// WhileStmt
762template< typename core_t >
763const ast::Stmt * ast::Pass< core_t >::visit( const ast::WhileStmt * node ) {
764 VISIT_START( node );
765
766 VISIT({
767 // while statements introduce a level of scope (for the initialization)
768 guard_symtab guard { *this };
769 maybe_accept( node, &WhileStmt::inits );
770 maybe_accept( node, &WhileStmt::cond );
771 maybe_accept_as_compound( node, &WhileStmt::body );
772 })
773
774 VISIT_END( Stmt, node );
775}
776
777//--------------------------------------------------------------------------
778// ForStmt
779template< typename core_t >
780const ast::Stmt * ast::Pass< core_t >::visit( const ast::ForStmt * node ) {
781 VISIT_START( node );
782
783 VISIT({
784 // for statements introduce a level of scope (for the initialization)
785 guard_symtab guard { *this };
786 // xxx - old ast does not create WithStmtsToAdd scope for loop inits. should revisit this later.
787 maybe_accept( node, &ForStmt::inits );
788 maybe_accept( node, &ForStmt::cond );
789 maybe_accept( node, &ForStmt::inc );
790 maybe_accept_as_compound( node, &ForStmt::body );
791 })
792
793 VISIT_END( Stmt, node );
794}
795
796//--------------------------------------------------------------------------
797// SwitchStmt
798template< typename core_t >
799const ast::Stmt * ast::Pass< core_t >::visit( const ast::SwitchStmt * node ) {
800 VISIT_START( node );
801
802 VISIT(
803 maybe_accept( node, &SwitchStmt::cond );
804 maybe_accept( node, &SwitchStmt::stmts );
805 )
806
807 VISIT_END( Stmt, node );
808}
809
810//--------------------------------------------------------------------------
811// CaseStmt
812template< typename core_t >
813const ast::Stmt * ast::Pass< core_t >::visit( const ast::CaseStmt * node ) {
814 VISIT_START( node );
815
816 VISIT(
817 maybe_accept( node, &CaseStmt::cond );
818 maybe_accept( node, &CaseStmt::stmts );
819 )
820
821 VISIT_END( Stmt, node );
822}
823
824//--------------------------------------------------------------------------
825// BranchStmt
826template< typename core_t >
827const ast::Stmt * ast::Pass< core_t >::visit( const ast::BranchStmt * node ) {
828 VISIT_START( node );
829 VISIT_END( Stmt, node );
830}
831
832//--------------------------------------------------------------------------
833// ReturnStmt
834template< typename core_t >
835const ast::Stmt * ast::Pass< core_t >::visit( const ast::ReturnStmt * node ) {
836 VISIT_START( node );
837
838 VISIT(
839 maybe_accept( node, &ReturnStmt::expr );
840 )
841
842 VISIT_END( Stmt, node );
843}
844
845//--------------------------------------------------------------------------
846// ThrowStmt
847template< typename core_t >
848const ast::Stmt * ast::Pass< core_t >::visit( const ast::ThrowStmt * node ) {
849 VISIT_START( node );
850
851 VISIT(
852 maybe_accept( node, &ThrowStmt::expr );
853 maybe_accept( node, &ThrowStmt::target );
854 )
855
856 VISIT_END( Stmt, node );
857}
858
859//--------------------------------------------------------------------------
860// TryStmt
861template< typename core_t >
862const ast::Stmt * ast::Pass< core_t >::visit( const ast::TryStmt * node ) {
863 VISIT_START( node );
864
865 VISIT(
866 maybe_accept( node, &TryStmt::body );
867 maybe_accept( node, &TryStmt::handlers );
868 maybe_accept( node, &TryStmt::finally );
869 )
870
871 VISIT_END( Stmt, node );
872}
873
874//--------------------------------------------------------------------------
875// CatchStmt
876template< typename core_t >
877const ast::Stmt * ast::Pass< core_t >::visit( const ast::CatchStmt * node ) {
878 VISIT_START( node );
879
880 VISIT({
881 // catch statements introduce a level of scope (for the caught exception)
882 guard_symtab guard { *this };
883 maybe_accept( node, &CatchStmt::decl );
884 maybe_accept( node, &CatchStmt::cond );
885 maybe_accept_as_compound( node, &CatchStmt::body );
886 })
887
888 VISIT_END( Stmt, node );
889}
890
891//--------------------------------------------------------------------------
892// FinallyStmt
893template< typename core_t >
894const ast::Stmt * ast::Pass< core_t >::visit( const ast::FinallyStmt * node ) {
895 VISIT_START( node );
896
897 VISIT(
898 maybe_accept( node, &FinallyStmt::body );
899 )
900
901 VISIT_END( Stmt, node );
902}
903
904//--------------------------------------------------------------------------
905// FinallyStmt
906template< typename core_t >
907const ast::Stmt * ast::Pass< core_t >::visit( const ast::SuspendStmt * node ) {
908 VISIT_START( node );
909
910 VISIT(
911 maybe_accept( node, &SuspendStmt::then );
912 )
913
914 VISIT_END( Stmt, node );
915}
916
917//--------------------------------------------------------------------------
918// WaitForStmt
919template< typename core_t >
920const ast::Stmt * ast::Pass< core_t >::visit( const ast::WaitForStmt * node ) {
921 VISIT_START( node );
922 // for( auto & clause : node->clauses ) {
923 // maybeAccept_impl( clause.target.function, *this );
924 // maybeAccept_impl( clause.target.arguments, *this );
925
926 // maybeAccept_impl( clause.statement, *this );
927 // maybeAccept_impl( clause.condition, *this );
928 // }
929
930 VISIT({
931 std::vector<WaitForStmt::Clause> new_clauses;
932 new_clauses.reserve( node->clauses.size() );
933 bool mutated = false;
934 for( const auto & clause : node->clauses ) {
935
936 const Expr * func = clause.target.func ? clause.target.func->accept(*this) : nullptr;
937 if(func != clause.target.func) mutated = true;
938
939 std::vector<ptr<Expr>> new_args;
940 new_args.reserve(clause.target.args.size());
941 for( const auto & arg : clause.target.args ) {
942 auto a = arg->accept(*this);
943 new_args.push_back( a );
944 if( a != arg ) mutated = true;
945 }
946
947 const Stmt * stmt = clause.stmt ? clause.stmt->accept(*this) : nullptr;
948 if(stmt != clause.stmt) mutated = true;
949
950 const Expr * cond = clause.cond ? clause.cond->accept(*this) : nullptr;
951 if(cond != clause.cond) mutated = true;
952
953 new_clauses.push_back( WaitForStmt::Clause{ {func, std::move(new_args) }, stmt, cond } );
954 }
955
956 if(mutated) {
957 auto n = __pass::mutate<core_t>(node);
958 n->clauses = std::move( new_clauses );
959 node = n;
960 }
961 })
962
963 #define maybe_accept(field) \
964 if(node->field) { \
965 auto nval = call_accept( node->field ); \
966 if(nval != node->field ) { \
967 auto nparent = __pass::mutate<core_t>(node); \
968 nparent->field = nval; \
969 node = nparent; \
970 } \
971 }
972
973 VISIT(
974 maybe_accept( timeout.time );
975 maybe_accept( timeout.stmt );
976 maybe_accept( timeout.cond );
977 maybe_accept( orElse.stmt );
978 maybe_accept( orElse.cond );
979 )
980
981 #undef maybe_accept
982
983 VISIT_END( Stmt, node );
984}
985
986//--------------------------------------------------------------------------
987// WithStmt
988template< typename core_t >
989const ast::Decl * ast::Pass< core_t >::visit( const ast::WithStmt * node ) {
990 VISIT_START( node );
991
992 VISIT(
993 maybe_accept( node, &WithStmt::exprs );
994 {
995 // catch statements introduce a level of scope (for the caught exception)
996 guard_symtab guard { *this };
997 __pass::symtab::addWith( core, 0, node->exprs, node );
998 maybe_accept( node, &WithStmt::stmt );
999 }
1000 )
1001 VISIT_END( Stmt, node );
1002}
1003
1004//--------------------------------------------------------------------------
1005// NullStmt
1006template< typename core_t >
1007const ast::NullStmt * ast::Pass< core_t >::visit( const ast::NullStmt * node ) {
1008 VISIT_START( node );
1009 VISIT_END( NullStmt, node );
1010}
1011
1012//--------------------------------------------------------------------------
1013// DeclStmt
1014template< typename core_t >
1015const ast::Stmt * ast::Pass< core_t >::visit( const ast::DeclStmt * node ) {
1016 VISIT_START( node );
1017
1018 VISIT(
1019 maybe_accept( node, &DeclStmt::decl );
1020 )
1021
1022 VISIT_END( Stmt, node );
1023}
1024
1025//--------------------------------------------------------------------------
1026// ImplicitCtorDtorStmt
1027template< typename core_t >
1028const ast::Stmt * ast::Pass< core_t >::visit( const ast::ImplicitCtorDtorStmt * node ) {
1029 VISIT_START( node );
1030
1031 // For now this isn't visited, it is unclear if this causes problem
1032 // if all tests are known to pass, remove this code
1033 VISIT(
1034 maybe_accept( node, &ImplicitCtorDtorStmt::callStmt );
1035 )
1036
1037 VISIT_END( Stmt, node );
1038}
1039
1040//--------------------------------------------------------------------------
1041// MutexStmt
1042template< typename core_t >
1043const ast::Stmt * ast::Pass< core_t >::visit( const ast::MutexStmt * node ) {
1044 VISIT_START( node );
1045
1046 VISIT({
1047 // mutex statements introduce a level of scope (for the initialization)
1048 guard_symtab guard { *this };
1049 maybe_accept( node, &MutexStmt::stmt );
1050 maybe_accept( node, &MutexStmt::mutexObjs );
1051 })
1052
1053 VISIT_END( Stmt, node );
1054}
1055
1056//--------------------------------------------------------------------------
1057// ApplicationExpr
1058template< typename core_t >
1059const ast::Expr * ast::Pass< core_t >::visit( const ast::ApplicationExpr * node ) {
1060 VISIT_START( node );
1061
1062 VISIT(
1063 {
1064 guard_symtab guard { *this };
1065 maybe_accept( node, &ApplicationExpr::result );
1066 }
1067 maybe_accept( node, &ApplicationExpr::func );
1068 maybe_accept( node, &ApplicationExpr::args );
1069 )
1070
1071 VISIT_END( Expr, node );
1072}
1073
1074//--------------------------------------------------------------------------
1075// UntypedExpr
1076template< typename core_t >
1077const ast::Expr * ast::Pass< core_t >::visit( const ast::UntypedExpr * node ) {
1078 VISIT_START( node );
1079
1080 VISIT(
1081 {
1082 guard_symtab guard { *this };
1083 maybe_accept( node, &UntypedExpr::result );
1084 }
1085
1086 maybe_accept( node, &UntypedExpr::args );
1087 )
1088
1089 VISIT_END( Expr, node );
1090}
1091
1092//--------------------------------------------------------------------------
1093// NameExpr
1094template< typename core_t >
1095const ast::Expr * ast::Pass< core_t >::visit( const ast::NameExpr * node ) {
1096 VISIT_START( node );
1097
1098 VISIT({
1099 guard_symtab guard { *this };
1100 maybe_accept( node, &NameExpr::result );
1101 })
1102
1103 VISIT_END( Expr, node );
1104}
1105
1106//--------------------------------------------------------------------------
1107// CastExpr
1108template< typename core_t >
1109const ast::Expr * ast::Pass< core_t >::visit( const ast::CastExpr * node ) {
1110 VISIT_START( node );
1111
1112 VISIT({
1113 guard_symtab guard { *this };
1114 maybe_accept( node, &CastExpr::result );
1115 }
1116 maybe_accept( node, &CastExpr::arg );
1117 )
1118
1119 VISIT_END( Expr, node );
1120}
1121
1122//--------------------------------------------------------------------------
1123// KeywordCastExpr
1124template< typename core_t >
1125const ast::Expr * ast::Pass< core_t >::visit( const ast::KeywordCastExpr * node ) {
1126 VISIT_START( node );
1127
1128 VISIT({
1129 guard_symtab guard { *this };
1130 maybe_accept( node, &KeywordCastExpr::result );
1131 }
1132 maybe_accept( node, &KeywordCastExpr::arg );
1133 )
1134
1135 VISIT_END( Expr, node );
1136}
1137
1138//--------------------------------------------------------------------------
1139// VirtualCastExpr
1140template< typename core_t >
1141const ast::Expr * ast::Pass< core_t >::visit( const ast::VirtualCastExpr * node ) {
1142 VISIT_START( node );
1143
1144 VISIT({
1145 guard_symtab guard { *this };
1146 maybe_accept( node, &VirtualCastExpr::result );
1147 }
1148 maybe_accept( node, &VirtualCastExpr::arg );
1149 )
1150
1151 VISIT_END( Expr, node );
1152}
1153
1154//--------------------------------------------------------------------------
1155// AddressExpr
1156template< typename core_t >
1157const ast::Expr * ast::Pass< core_t >::visit( const ast::AddressExpr * node ) {
1158 VISIT_START( node );
1159
1160 VISIT({
1161 guard_symtab guard { *this };
1162 maybe_accept( node, &AddressExpr::result );
1163 }
1164 maybe_accept( node, &AddressExpr::arg );
1165 )
1166
1167 VISIT_END( Expr, node );
1168}
1169
1170//--------------------------------------------------------------------------
1171// LabelAddressExpr
1172template< typename core_t >
1173const ast::Expr * ast::Pass< core_t >::visit( const ast::LabelAddressExpr * node ) {
1174 VISIT_START( node );
1175
1176 VISIT({
1177 guard_symtab guard { *this };
1178 maybe_accept( node, &LabelAddressExpr::result );
1179 })
1180
1181 VISIT_END( Expr, node );
1182}
1183
1184//--------------------------------------------------------------------------
1185// UntypedMemberExpr
1186template< typename core_t >
1187const ast::Expr * ast::Pass< core_t >::visit( const ast::UntypedMemberExpr * node ) {
1188 VISIT_START( node );
1189
1190 VISIT({
1191 guard_symtab guard { *this };
1192 maybe_accept( node, &UntypedMemberExpr::result );
1193 }
1194 maybe_accept( node, &UntypedMemberExpr::aggregate );
1195 maybe_accept( node, &UntypedMemberExpr::member );
1196 )
1197
1198 VISIT_END( Expr, node );
1199}
1200
1201//--------------------------------------------------------------------------
1202// MemberExpr
1203template< typename core_t >
1204const ast::Expr * ast::Pass< core_t >::visit( const ast::MemberExpr * node ) {
1205 VISIT_START( node );
1206
1207 VISIT({
1208 guard_symtab guard { *this };
1209 maybe_accept( node, &MemberExpr::result );
1210 }
1211 maybe_accept( node, &MemberExpr::aggregate );
1212 )
1213
1214 VISIT_END( Expr, node );
1215}
1216
1217//--------------------------------------------------------------------------
1218// VariableExpr
1219template< typename core_t >
1220const ast::Expr * ast::Pass< core_t >::visit( const ast::VariableExpr * node ) {
1221 VISIT_START( node );
1222
1223 VISIT({
1224 guard_symtab guard { *this };
1225 maybe_accept( node, &VariableExpr::result );
1226 })
1227
1228 VISIT_END( Expr, node );
1229}
1230
1231//--------------------------------------------------------------------------
1232// ConstantExpr
1233template< typename core_t >
1234const ast::Expr * ast::Pass< core_t >::visit( const ast::ConstantExpr * node ) {
1235 VISIT_START( node );
1236
1237 VISIT({
1238 guard_symtab guard { *this };
1239 maybe_accept( node, &ConstantExpr::result );
1240 })
1241
1242 VISIT_END( Expr, node );
1243}
1244
1245//--------------------------------------------------------------------------
1246// SizeofExpr
1247template< typename core_t >
1248const ast::Expr * ast::Pass< core_t >::visit( const ast::SizeofExpr * node ) {
1249 VISIT_START( node );
1250
1251 VISIT({
1252 guard_symtab guard { *this };
1253 maybe_accept( node, &SizeofExpr::result );
1254 }
1255 if ( node->type ) {
1256 maybe_accept( node, &SizeofExpr::type );
1257 } else {
1258 maybe_accept( node, &SizeofExpr::expr );
1259 }
1260 )
1261
1262 VISIT_END( Expr, node );
1263}
1264
1265//--------------------------------------------------------------------------
1266// AlignofExpr
1267template< typename core_t >
1268const ast::Expr * ast::Pass< core_t >::visit( const ast::AlignofExpr * node ) {
1269 VISIT_START( node );
1270
1271 VISIT({
1272 guard_symtab guard { *this };
1273 maybe_accept( node, &AlignofExpr::result );
1274 }
1275 if ( node->type ) {
1276 maybe_accept( node, &AlignofExpr::type );
1277 } else {
1278 maybe_accept( node, &AlignofExpr::expr );
1279 }
1280 )
1281
1282 VISIT_END( Expr, node );
1283}
1284
1285//--------------------------------------------------------------------------
1286// UntypedOffsetofExpr
1287template< typename core_t >
1288const ast::Expr * ast::Pass< core_t >::visit( const ast::UntypedOffsetofExpr * node ) {
1289 VISIT_START( node );
1290
1291 VISIT({
1292 guard_symtab guard { *this };
1293 maybe_accept( node, &UntypedOffsetofExpr::result );
1294 }
1295 maybe_accept( node, &UntypedOffsetofExpr::type );
1296 )
1297
1298 VISIT_END( Expr, node );
1299}
1300
1301//--------------------------------------------------------------------------
1302// OffsetofExpr
1303template< typename core_t >
1304const ast::Expr * ast::Pass< core_t >::visit( const ast::OffsetofExpr * node ) {
1305 VISIT_START( node );
1306
1307 VISIT({
1308 guard_symtab guard { *this };
1309 maybe_accept( node, &OffsetofExpr::result );
1310 }
1311 maybe_accept( node, &OffsetofExpr::type );
1312 )
1313
1314 VISIT_END( Expr, node );
1315}
1316
1317//--------------------------------------------------------------------------
1318// OffsetPackExpr
1319template< typename core_t >
1320const ast::Expr * ast::Pass< core_t >::visit( const ast::OffsetPackExpr * node ) {
1321 VISIT_START( node );
1322
1323 VISIT({
1324 guard_symtab guard { *this };
1325 maybe_accept( node, &OffsetPackExpr::result );
1326 }
1327 maybe_accept( node, &OffsetPackExpr::type );
1328 )
1329
1330 VISIT_END( Expr, node );
1331}
1332
1333//--------------------------------------------------------------------------
1334// LogicalExpr
1335template< typename core_t >
1336const ast::Expr * ast::Pass< core_t >::visit( const ast::LogicalExpr * node ) {
1337 VISIT_START( node );
1338
1339 VISIT({
1340 guard_symtab guard { *this };
1341 maybe_accept( node, &LogicalExpr::result );
1342 }
1343 maybe_accept( node, &LogicalExpr::arg1 );
1344 maybe_accept( node, &LogicalExpr::arg2 );
1345 )
1346
1347 VISIT_END( Expr, node );
1348}
1349
1350//--------------------------------------------------------------------------
1351// ConditionalExpr
1352template< typename core_t >
1353const ast::Expr * ast::Pass< core_t >::visit( const ast::ConditionalExpr * node ) {
1354 VISIT_START( node );
1355
1356 VISIT({
1357 guard_symtab guard { *this };
1358 maybe_accept( node, &ConditionalExpr::result );
1359 }
1360 maybe_accept( node, &ConditionalExpr::arg1 );
1361 maybe_accept( node, &ConditionalExpr::arg2 );
1362 maybe_accept( node, &ConditionalExpr::arg3 );
1363 )
1364
1365 VISIT_END( Expr, node );
1366}
1367
1368//--------------------------------------------------------------------------
1369// CommaExpr
1370template< typename core_t >
1371const ast::Expr * ast::Pass< core_t >::visit( const ast::CommaExpr * node ) {
1372 VISIT_START( node );
1373
1374 VISIT({
1375 guard_symtab guard { *this };
1376 maybe_accept( node, &CommaExpr::result );
1377 }
1378 maybe_accept( node, &CommaExpr::arg1 );
1379 maybe_accept( node, &CommaExpr::arg2 );
1380 )
1381
1382 VISIT_END( Expr, node );
1383}
1384
1385//--------------------------------------------------------------------------
1386// TypeExpr
1387template< typename core_t >
1388const ast::Expr * ast::Pass< core_t >::visit( const ast::TypeExpr * node ) {
1389 VISIT_START( node );
1390
1391 VISIT({
1392 guard_symtab guard { *this };
1393 maybe_accept( node, &TypeExpr::result );
1394 }
1395 maybe_accept( node, &TypeExpr::type );
1396 )
1397
1398 VISIT_END( Expr, node );
1399}
1400
1401//--------------------------------------------------------------------------
1402// AsmExpr
1403template< typename core_t >
1404const ast::Expr * ast::Pass< core_t >::visit( const ast::AsmExpr * node ) {
1405 VISIT_START( node );
1406
1407 VISIT({
1408 guard_symtab guard { *this };
1409 maybe_accept( node, &AsmExpr::result );
1410 }
1411 maybe_accept( node, &AsmExpr::constraint );
1412 maybe_accept( node, &AsmExpr::operand );
1413 )
1414
1415 VISIT_END( Expr, node );
1416}
1417
1418//--------------------------------------------------------------------------
1419// ImplicitCopyCtorExpr
1420template< typename core_t >
1421const ast::Expr * ast::Pass< core_t >::visit( const ast::ImplicitCopyCtorExpr * node ) {
1422 VISIT_START( node );
1423
1424 VISIT({
1425 guard_symtab guard { *this };
1426 maybe_accept( node, &ImplicitCopyCtorExpr::result );
1427 }
1428 maybe_accept( node, &ImplicitCopyCtorExpr::callExpr );
1429 )
1430
1431 VISIT_END( Expr, node );
1432}
1433
1434//--------------------------------------------------------------------------
1435// ConstructorExpr
1436template< typename core_t >
1437const ast::Expr * ast::Pass< core_t >::visit( const ast::ConstructorExpr * node ) {
1438 VISIT_START( node );
1439
1440 VISIT({
1441 guard_symtab guard { *this };
1442 maybe_accept( node, &ConstructorExpr::result );
1443 }
1444 maybe_accept( node, &ConstructorExpr::callExpr );
1445 )
1446
1447 VISIT_END( Expr, node );
1448}
1449
1450//--------------------------------------------------------------------------
1451// CompoundLiteralExpr
1452template< typename core_t >
1453const ast::Expr * ast::Pass< core_t >::visit( const ast::CompoundLiteralExpr * node ) {
1454 VISIT_START( node );
1455
1456 VISIT({
1457 guard_symtab guard { *this };
1458 maybe_accept( node, &CompoundLiteralExpr::result );
1459 }
1460 maybe_accept( node, &CompoundLiteralExpr::init );
1461 )
1462
1463 VISIT_END( Expr, node );
1464}
1465
1466//--------------------------------------------------------------------------
1467// RangeExpr
1468template< typename core_t >
1469const ast::Expr * ast::Pass< core_t >::visit( const ast::RangeExpr * node ) {
1470 VISIT_START( node );
1471
1472 VISIT({
1473 guard_symtab guard { *this };
1474 maybe_accept( node, &RangeExpr::result );
1475 }
1476 maybe_accept( node, &RangeExpr::low );
1477 maybe_accept( node, &RangeExpr::high );
1478 )
1479
1480 VISIT_END( Expr, node );
1481}
1482
1483//--------------------------------------------------------------------------
1484// UntypedTupleExpr
1485template< typename core_t >
1486const ast::Expr * ast::Pass< core_t >::visit( const ast::UntypedTupleExpr * node ) {
1487 VISIT_START( node );
1488
1489 VISIT({
1490 guard_symtab guard { *this };
1491 maybe_accept( node, &UntypedTupleExpr::result );
1492 }
1493 maybe_accept( node, &UntypedTupleExpr::exprs );
1494 )
1495
1496 VISIT_END( Expr, node );
1497}
1498
1499//--------------------------------------------------------------------------
1500// TupleExpr
1501template< typename core_t >
1502const ast::Expr * ast::Pass< core_t >::visit( const ast::TupleExpr * node ) {
1503 VISIT_START( node );
1504
1505 VISIT({
1506 guard_symtab guard { *this };
1507 maybe_accept( node, &TupleExpr::result );
1508 }
1509 maybe_accept( node, &TupleExpr::exprs );
1510 )
1511
1512 VISIT_END( Expr, node );
1513}
1514
1515//--------------------------------------------------------------------------
1516// TupleIndexExpr
1517template< typename core_t >
1518const ast::Expr * ast::Pass< core_t >::visit( const ast::TupleIndexExpr * node ) {
1519 VISIT_START( node );
1520
1521 VISIT({
1522 guard_symtab guard { *this };
1523 maybe_accept( node, &TupleIndexExpr::result );
1524 }
1525 maybe_accept( node, &TupleIndexExpr::tuple );
1526 )
1527
1528 VISIT_END( Expr, node );
1529}
1530
1531//--------------------------------------------------------------------------
1532// TupleAssignExpr
1533template< typename core_t >
1534const ast::Expr * ast::Pass< core_t >::visit( const ast::TupleAssignExpr * node ) {
1535 VISIT_START( node );
1536
1537 VISIT({
1538 guard_symtab guard { *this };
1539 maybe_accept( node, &TupleAssignExpr::result );
1540 }
1541 maybe_accept( node, &TupleAssignExpr::stmtExpr );
1542 )
1543
1544 VISIT_END( Expr, node );
1545}
1546
1547//--------------------------------------------------------------------------
1548// StmtExpr
1549template< typename core_t >
1550const ast::Expr * ast::Pass< core_t >::visit( const ast::StmtExpr * node ) {
1551 VISIT_START( node );
1552
1553 VISIT(// don't want statements from outer CompoundStmts to be added to this StmtExpr
1554 // get the stmts that will need to be spliced in
1555 auto stmts_before = __pass::stmtsToAddBefore( core, 0);
1556 auto stmts_after = __pass::stmtsToAddAfter ( core, 0);
1557
1558 // These may be modified by subnode but most be restored once we exit this statemnet.
1559 ValueGuardPtr< const ast::TypeSubstitution * > __old_env( __pass::typeSubs( core, 0 ) );
1560 ValueGuardPtr< typename std::remove_pointer< decltype(stmts_before) >::type > __old_decls_before( stmts_before );
1561 ValueGuardPtr< typename std::remove_pointer< decltype(stmts_after ) >::type > __old_decls_after ( stmts_after );
1562
1563 {
1564 guard_symtab guard { *this };
1565 maybe_accept( node, &StmtExpr::result );
1566 }
1567 maybe_accept( node, &StmtExpr::stmts );
1568 maybe_accept( node, &StmtExpr::returnDecls );
1569 maybe_accept( node, &StmtExpr::dtors );
1570 )
1571
1572 VISIT_END( Expr, node );
1573}
1574
1575//--------------------------------------------------------------------------
1576// UniqueExpr
1577template< typename core_t >
1578const ast::Expr * ast::Pass< core_t >::visit( const ast::UniqueExpr * node ) {
1579 VISIT_START( node );
1580
1581 VISIT({
1582 guard_symtab guard { *this };
1583 maybe_accept( node, &UniqueExpr::result );
1584 }
1585 maybe_accept( node, &UniqueExpr::expr );
1586 )
1587
1588 VISIT_END( Expr, node );
1589}
1590
1591//--------------------------------------------------------------------------
1592// UntypedInitExpr
1593template< typename core_t >
1594const ast::Expr * ast::Pass< core_t >::visit( const ast::UntypedInitExpr * node ) {
1595 VISIT_START( node );
1596
1597 VISIT({
1598 guard_symtab guard { *this };
1599 maybe_accept( node, &UntypedInitExpr::result );
1600 }
1601 maybe_accept( node, &UntypedInitExpr::expr );
1602 // not currently visiting initAlts, but this doesn't matter since this node is only used in the resolver.
1603 )
1604
1605 VISIT_END( Expr, node );
1606}
1607
1608//--------------------------------------------------------------------------
1609// InitExpr
1610template< typename core_t >
1611const ast::Expr * ast::Pass< core_t >::visit( const ast::InitExpr * node ) {
1612 VISIT_START( node );
1613
1614 VISIT({
1615 guard_symtab guard { *this };
1616 maybe_accept( node, &InitExpr::result );
1617 }
1618 maybe_accept( node, &InitExpr::expr );
1619 maybe_accept( node, &InitExpr::designation );
1620 )
1621
1622 VISIT_END( Expr, node );
1623}
1624
1625//--------------------------------------------------------------------------
1626// DeletedExpr
1627template< typename core_t >
1628const ast::Expr * ast::Pass< core_t >::visit( const ast::DeletedExpr * node ) {
1629 VISIT_START( node );
1630
1631 VISIT({
1632 guard_symtab guard { *this };
1633 maybe_accept( node, &DeletedExpr::result );
1634 }
1635 maybe_accept( node, &DeletedExpr::expr );
1636 // don't visit deleteStmt, because it is a pointer to somewhere else in the tree.
1637 )
1638
1639 VISIT_END( Expr, node );
1640}
1641
1642//--------------------------------------------------------------------------
1643// DefaultArgExpr
1644template< typename core_t >
1645const ast::Expr * ast::Pass< core_t >::visit( const ast::DefaultArgExpr * node ) {
1646 VISIT_START( node );
1647
1648 VISIT({
1649 guard_symtab guard { *this };
1650 maybe_accept( node, &DefaultArgExpr::result );
1651 }
1652 maybe_accept( node, &DefaultArgExpr::expr );
1653 )
1654
1655 VISIT_END( Expr, node );
1656}
1657
1658//--------------------------------------------------------------------------
1659// GenericExpr
1660template< typename core_t >
1661const ast::Expr * ast::Pass< core_t >::visit( const ast::GenericExpr * node ) {
1662 VISIT_START( node );
1663
1664 VISIT({
1665 guard_symtab guard { *this };
1666 maybe_accept( node, &GenericExpr::result );
1667 }
1668 maybe_accept( node, &GenericExpr::control );
1669
1670 std::vector<GenericExpr::Association> new_kids;
1671 new_kids.reserve(node->associations.size());
1672 bool mutated = false;
1673 for( const auto & assoc : node->associations ) {
1674 const Type * type = nullptr;
1675 if( assoc.type ) {
1676 guard_symtab guard { *this };
1677 type = assoc.type->accept( *this );
1678 if( type != assoc.type ) mutated = true;
1679 }
1680 const Expr * expr = nullptr;
1681 if( assoc.expr ) {
1682 expr = assoc.expr->accept( *this );
1683 if( expr != assoc.expr ) mutated = true;
1684 }
1685 new_kids.emplace_back( type, expr );
1686 }
1687
1688 if(mutated) {
1689 auto n = __pass::mutate<core_t>(node);
1690 n->associations = std::move( new_kids );
1691 node = n;
1692 }
1693 )
1694
1695 VISIT_END( Expr, node );
1696}
1697
1698//--------------------------------------------------------------------------
1699// VoidType
1700template< typename core_t >
1701const ast::Type * ast::Pass< core_t >::visit( const ast::VoidType * node ) {
1702 VISIT_START( node );
1703
1704 VISIT_END( Type, node );
1705}
1706
1707//--------------------------------------------------------------------------
1708// BasicType
1709template< typename core_t >
1710const ast::Type * ast::Pass< core_t >::visit( const ast::BasicType * node ) {
1711 VISIT_START( node );
1712
1713 VISIT_END( Type, node );
1714}
1715
1716//--------------------------------------------------------------------------
1717// PointerType
1718template< typename core_t >
1719const ast::Type * ast::Pass< core_t >::visit( const ast::PointerType * node ) {
1720 VISIT_START( node );
1721
1722 VISIT(
1723 // xxx - should PointerType visit/mutate dimension?
1724 maybe_accept( node, &PointerType::base );
1725 )
1726
1727 VISIT_END( Type, node );
1728}
1729
1730//--------------------------------------------------------------------------
1731// ArrayType
1732template< typename core_t >
1733const ast::Type * ast::Pass< core_t >::visit( const ast::ArrayType * node ) {
1734 VISIT_START( node );
1735
1736 VISIT(
1737 maybe_accept( node, &ArrayType::dimension );
1738 maybe_accept( node, &ArrayType::base );
1739 )
1740
1741 VISIT_END( Type, node );
1742}
1743
1744//--------------------------------------------------------------------------
1745// ReferenceType
1746template< typename core_t >
1747const ast::Type * ast::Pass< core_t >::visit( const ast::ReferenceType * node ) {
1748 VISIT_START( node );
1749
1750 VISIT(
1751 maybe_accept( node, &ReferenceType::base );
1752 )
1753
1754 VISIT_END( Type, node );
1755}
1756
1757//--------------------------------------------------------------------------
1758// QualifiedType
1759template< typename core_t >
1760const ast::Type * ast::Pass< core_t >::visit( const ast::QualifiedType * node ) {
1761 VISIT_START( node );
1762
1763 VISIT(
1764 maybe_accept( node, &QualifiedType::parent );
1765 maybe_accept( node, &QualifiedType::child );
1766 )
1767
1768 VISIT_END( Type, node );
1769}
1770
1771//--------------------------------------------------------------------------
1772// FunctionType
1773template< typename core_t >
1774const ast::Type * ast::Pass< core_t >::visit( const ast::FunctionType * node ) {
1775 VISIT_START( node );
1776
1777 VISIT({
1778 // guard_forall_subs forall_guard { *this, node };
1779 // mutate_forall( node );
1780 maybe_accept( node, &FunctionType::assertions );
1781 maybe_accept( node, &FunctionType::returns );
1782 maybe_accept( node, &FunctionType::params );
1783 })
1784
1785 VISIT_END( Type, node );
1786}
1787
1788//--------------------------------------------------------------------------
1789// StructInstType
1790template< typename core_t >
1791const ast::Type * ast::Pass< core_t >::visit( const ast::StructInstType * node ) {
1792 VISIT_START( node );
1793
1794 __pass::symtab::addStruct( core, 0, node->name );
1795
1796 VISIT({
1797 guard_symtab guard { *this };
1798 maybe_accept( node, &StructInstType::params );
1799 })
1800
1801 VISIT_END( Type, node );
1802}
1803
1804//--------------------------------------------------------------------------
1805// UnionInstType
1806template< typename core_t >
1807const ast::Type * ast::Pass< core_t >::visit( const ast::UnionInstType * node ) {
1808 VISIT_START( node );
1809
1810 __pass::symtab::addUnion( core, 0, node->name );
1811
1812 VISIT({
1813 guard_symtab guard { *this };
1814 maybe_accept( node, &UnionInstType::params );
1815 })
1816
1817 VISIT_END( Type, node );
1818}
1819
1820//--------------------------------------------------------------------------
1821// EnumInstType
1822template< typename core_t >
1823const ast::Type * ast::Pass< core_t >::visit( const ast::EnumInstType * node ) {
1824 VISIT_START( node );
1825
1826 VISIT({
1827 maybe_accept( node, &EnumInstType::params );
1828 })
1829
1830 VISIT_END( Type, node );
1831}
1832
1833//--------------------------------------------------------------------------
1834// TraitInstType
1835template< typename core_t >
1836const ast::Type * ast::Pass< core_t >::visit( const ast::TraitInstType * node ) {
1837 VISIT_START( node );
1838
1839 VISIT({
1840 maybe_accept( node, &TraitInstType::params );
1841 })
1842
1843 VISIT_END( Type, node );
1844}
1845
1846//--------------------------------------------------------------------------
1847// TypeInstType
1848template< typename core_t >
1849const ast::Type * ast::Pass< core_t >::visit( const ast::TypeInstType * node ) {
1850 VISIT_START( node );
1851
1852 VISIT(
1853 {
1854 maybe_accept( node, &TypeInstType::params );
1855 }
1856 // ensure that base re-bound if doing substitution
1857 __pass::forall::replace( core, 0, node );
1858 )
1859
1860 VISIT_END( Type, node );
1861}
1862
1863//--------------------------------------------------------------------------
1864// TupleType
1865template< typename core_t >
1866const ast::Type * ast::Pass< core_t >::visit( const ast::TupleType * node ) {
1867 VISIT_START( node );
1868
1869 VISIT(
1870 maybe_accept( node, &TupleType::types );
1871 maybe_accept( node, &TupleType::members );
1872 )
1873
1874 VISIT_END( Type, node );
1875}
1876
1877//--------------------------------------------------------------------------
1878// TypeofType
1879template< typename core_t >
1880const ast::Type * ast::Pass< core_t >::visit( const ast::TypeofType * node ) {
1881 VISIT_START( node );
1882
1883 VISIT(
1884 maybe_accept( node, &TypeofType::expr );
1885 )
1886
1887 VISIT_END( Type, node );
1888}
1889
1890//--------------------------------------------------------------------------
1891// VTableType
1892template< typename core_t >
1893const ast::Type * ast::Pass< core_t >::visit( const ast::VTableType * node ) {
1894 VISIT_START( node );
1895
1896 VISIT(
1897 maybe_accept( node, &VTableType::base );
1898 )
1899
1900 VISIT_END( Type, node );
1901}
1902
1903//--------------------------------------------------------------------------
1904// VarArgsType
1905template< typename core_t >
1906const ast::Type * ast::Pass< core_t >::visit( const ast::VarArgsType * node ) {
1907 VISIT_START( node );
1908
1909 VISIT_END( Type, node );
1910}
1911
1912//--------------------------------------------------------------------------
1913// ZeroType
1914template< typename core_t >
1915const ast::Type * ast::Pass< core_t >::visit( const ast::ZeroType * node ) {
1916 VISIT_START( node );
1917
1918 VISIT_END( Type, node );
1919}
1920
1921//--------------------------------------------------------------------------
1922// OneType
1923template< typename core_t >
1924const ast::Type * ast::Pass< core_t >::visit( const ast::OneType * node ) {
1925 VISIT_START( node );
1926
1927 VISIT_END( Type, node );
1928}
1929
1930//--------------------------------------------------------------------------
1931// GlobalScopeType
1932template< typename core_t >
1933const ast::Type * ast::Pass< core_t >::visit( const ast::GlobalScopeType * node ) {
1934 VISIT_START( node );
1935
1936 VISIT_END( Type, node );
1937}
1938
1939
1940//--------------------------------------------------------------------------
1941// Designation
1942template< typename core_t >
1943const ast::Designation * ast::Pass< core_t >::visit( const ast::Designation * node ) {
1944 VISIT_START( node );
1945
1946 VISIT( maybe_accept( node, &Designation::designators ); )
1947
1948 VISIT_END( Designation, node );
1949}
1950
1951//--------------------------------------------------------------------------
1952// SingleInit
1953template< typename core_t >
1954const ast::Init * ast::Pass< core_t >::visit( const ast::SingleInit * node ) {
1955 VISIT_START( node );
1956
1957 VISIT(
1958 maybe_accept( node, &SingleInit::value );
1959 )
1960
1961 VISIT_END( Init, node );
1962}
1963
1964//--------------------------------------------------------------------------
1965// ListInit
1966template< typename core_t >
1967const ast::Init * ast::Pass< core_t >::visit( const ast::ListInit * node ) {
1968 VISIT_START( node );
1969
1970 VISIT(
1971 maybe_accept( node, &ListInit::designations );
1972 maybe_accept( node, &ListInit::initializers );
1973 )
1974
1975 VISIT_END( Init, node );
1976}
1977
1978//--------------------------------------------------------------------------
1979// ConstructorInit
1980template< typename core_t >
1981const ast::Init * ast::Pass< core_t >::visit( const ast::ConstructorInit * node ) {
1982 VISIT_START( node );
1983
1984 VISIT(
1985 maybe_accept( node, &ConstructorInit::ctor );
1986 maybe_accept( node, &ConstructorInit::dtor );
1987 maybe_accept( node, &ConstructorInit::init );
1988 )
1989
1990 VISIT_END( Init, node );
1991}
1992
1993//--------------------------------------------------------------------------
1994// Attribute
1995template< typename core_t >
1996const ast::Attribute * ast::Pass< core_t >::visit( const ast::Attribute * node ) {
1997 VISIT_START( node );
1998
1999 VISIT(
2000 maybe_accept( node, &Attribute::params );
2001 )
2002
2003 VISIT_END( Attribute, node );
2004}
2005
2006//--------------------------------------------------------------------------
2007// TypeSubstitution
2008template< typename core_t >
2009const ast::TypeSubstitution * ast::Pass< core_t >::visit( const ast::TypeSubstitution * node ) {
2010 VISIT_START( node );
2011
2012 VISIT(
2013 {
2014 bool mutated = false;
2015 std::unordered_map< ast::TypeInstType::TypeEnvKey, ast::ptr< ast::Type > > new_map;
2016 for ( const auto & p : node->typeEnv ) {
2017 guard_symtab guard { *this };
2018 auto new_node = p.second->accept( *this );
2019 if (new_node != p.second) mutated = true;
2020 new_map.insert({ p.first, new_node });
2021 }
2022 if (mutated) {
2023 auto new_node = __pass::mutate<core_t>( node );
2024 new_node->typeEnv.swap( new_map );
2025 node = new_node;
2026 }
2027 }
2028 )
2029
2030 VISIT_END( TypeSubstitution, node );
2031}
2032
2033#undef VISIT_START
2034#undef VISIT
2035#undef VISIT_END
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