source: src/AST/Convert.cpp@ 36d0a80

ADT arm-eh ast-experimental enum forall-pointer-decay jacob/cs343-translation new-ast-unique-expr pthread-emulation qualifiedEnum
Last change on this file since 36d0a80 was 490fb92e, checked in by Fangren Yu <f37yu@…>, 5 years ago

move FixInit to new ast

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File size: 76.8 KB
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[6d51bd7]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//
[74dbbf6]7// Convert.cpp -- Convert between the new and old syntax trees.
[6d51bd7]8//
9// Author : Thierry Delisle
10// Created On : Thu May 09 15::37::05 2019
[033ff37]11// Last Modified By : Peter A. Buhr
[07de76b]12// Last Modified On : Wed Dec 11 21:39:32 2019
13// Update Count : 33
[6d51bd7]14//
15
16#include "Convert.hpp"
17
[60aaa51d]18#include <deque>
[d148778]19#include <unordered_map>
20
[6d51bd7]21#include "AST/Attribute.hpp"
[8ff586c]22#include "AST/Copy.hpp"
[6d51bd7]23#include "AST/Decl.hpp"
24#include "AST/Expr.hpp"
25#include "AST/Init.hpp"
26#include "AST/Stmt.hpp"
[172d9342]27#include "AST/TypeSubstitution.hpp"
[6d51bd7]28
[157a816]29#include "SymTab/Autogen.h"
[6d51bd7]30#include "SynTree/Attribute.h"
31#include "SynTree/Declaration.h"
[172d9342]32#include "SynTree/TypeSubstitution.h"
[6d51bd7]33
[0aedb01]34#include "Validate/FindSpecialDecls.h"
35
[6d51bd7]36//================================================================================================
37// Utilities
38template<template <class...> class C>
39struct to {
40 template<typename T>
41 static auto from( T && v ) -> C< typename T::value_type > {
42 C< typename T::value_type > l;
43 std::move(std::begin(v), std::end(v), std::back_inserter(l));
44 return l;
45 }
46};
47
[157a816]48//================================================================================================
[490fb92e]49namespace ast {
[157a816]50
[043a5b6]51// This is to preserve the FindSpecialDecls hack. It does not (and perhaps should not)
[157a816]52// allow us to use the same stratagy in the new ast.
[490fb92e]53// xxx - since convert back pass works, this concern seems to be unnecessary.
54
55// these need to be accessed in new FixInit now
[2a54479]56ast::Type * sizeType = nullptr;
[157a816]57ast::FunctionDecl * dereferenceOperator = nullptr;
[043a5b6]58ast::StructDecl * dtorStruct = nullptr;
59ast::FunctionDecl * dtorStructDestroy = nullptr;
[157a816]60
61}
62
[6d51bd7]63//================================================================================================
[74dbbf6]64class ConverterNewToOld : public ast::Visitor {
[675d816]65 BaseSyntaxNode * node = nullptr;
[b869ec5]66 using Cache = std::unordered_map< const ast::Node *, BaseSyntaxNode * >;
67 Cache cache;
[675d816]68
[490fb92e]69 // Statements can no longer be shared.
70 // however, since StmtExprResult is now implemented, need to still maintain
71 // readonly references.
72 Cache readonlyCache;
73
[74dbbf6]74 template<typename T>
[675d816]75 struct Getter {
76 ConverterNewToOld & visitor;
77
[514a791]78 template<typename U, enum ast::Node::ref_type R>
79 T * accept1( const ast::ptr_base<U, R> & ptr ) {
[d148778]80 if ( ! ptr ) return nullptr;
[675d816]81 ptr->accept( visitor );
82 T * ret = strict_dynamic_cast< T * >( visitor.node );
83 visitor.node = nullptr;
84 return ret;
85 }
86
87 template<typename U>
88 std::list< T * > acceptL( const U & container ) {
89 std::list< T * > ret;
[d76c588]90 for ( auto ptr : container ) {
[675d816]91 ret.emplace_back( accept1( ptr ) );
92 }
93 return ret;
94 }
95 };
96
97 template<typename T>
98 Getter<T> get() {
99 return Getter<T>{ *this };
100 }
101
102 Label makeLabel(Statement * labelled, const ast::Label& label) {
[a62749f]103 // This probably will leak memory, but only until we get rid of the old tree.
104 if ( nullptr == labelled && label.location.isSet() ) {
105 labelled = new NullStmt();
106 labelled->location = label.location;
107 }
[675d816]108 return Label(
109 label.name,
110 labelled,
111 get<Attribute>().acceptL(label.attributes)
112 );
113 }
114
115 template<template <class...> class C>
116 std::list<Label> makeLabelL(Statement * labelled, const C<ast::Label>& labels) {
117 std::list<Label> ret;
118 for (auto label : labels) {
119 ret.push_back( makeLabel(labelled, label) );
120 }
[74dbbf6]121 return ret;
122 }
123
[d148778]124 /// get new qualifiers from old type
125 Type::Qualifiers cv( const ast::Type * ty ) { return { ty->qualifiers.val }; }
126
[b869ec5]127 /// returns true and sets `node` if in cache
128 bool inCache( const ast::Node * node ) {
129 auto it = cache.find( node );
130 if ( it == cache.end() ) return false;
131 this->node = it->second;
132 return true;
[d148778]133 }
134
[675d816]135public:
136 Declaration * decl( const ast::Decl * declNode ) {
137 return get<Declaration>().accept1( ast::ptr<ast::Decl>( declNode ) );
138 }
[74dbbf6]139
[675d816]140private:
[112fe04]141 void declPostamble( Declaration * decl, const ast::Decl * node ) {
142 decl->location = node->location;
143 // name comes from constructor
144 // linkage comes from constructor
145 decl->extension = node->extension;
146 decl->uniqueId = node->uniqueId;
147 // storageClasses comes from constructor
148 this->node = decl;
149 }
150
151 const ast::DeclWithType * declWithTypePostamble (
152 DeclarationWithType * decl, const ast::DeclWithType * node ) {
[f685679]153 cache.emplace( node, decl );
[112fe04]154 decl->mangleName = node->mangleName;
155 decl->scopeLevel = node->scopeLevel;
156 decl->asmName = get<Expression>().accept1( node->asmName );
157 // attributes comes from constructor
158 decl->isDeleted = node->isDeleted;
159 // fs comes from constructor
[f685679]160 declPostamble( decl, node );
[74dbbf6]161 return nullptr;
162 }
163
[490fb92e]164 const ast::DeclWithType * visit( const ast::ObjectDecl * node ) override final {
[546e712]165 if ( inCache( node ) ) {
166 return nullptr;
167 }
[490fb92e]168 auto bfwd = get<Expression>().accept1( node->bitfieldWidth );
169 auto type = get<Type>().accept1( node->type );
170 auto attr = get<Attribute>().acceptL( node->attributes );
171
[112fe04]172 auto decl = new ObjectDecl(
173 node->name,
174 Type::StorageClasses( node->storage.val ),
175 LinkageSpec::Spec( node->linkage.val ),
[546e712]176 bfwd,
[ef9988b]177 type->clone(),
[490fb92e]178 nullptr, // prevent infinite loop
[546e712]179 attr,
[112fe04]180 Type::FuncSpecifiers( node->funcSpec.val )
181 );
[490fb92e]182
183 // handles the case where node->init references itself
184 // xxx - does it really happen?
185 declWithTypePostamble(decl, node);
186 auto init = get<Initializer>().accept1( node->init );
187 decl->init = init;
188
189 this->node = decl;
190 return nullptr;
[112fe04]191 }
192
[74dbbf6]193 const ast::DeclWithType * visit( const ast::FunctionDecl * node ) override final {
[b869ec5]194 if ( inCache( node ) ) return nullptr;
[954c954]195
196 // function decl contains real variables that the type must use.
197 // the structural change means function type in and out of decl
198 // must be handled **differently** on convert back to old.
199 auto ftype = new FunctionType(
200 cv(node->type),
201 (bool)node->type->isVarArgs
202 );
203 ftype->returnVals = get<DeclarationWithType>().acceptL(node->returns);
204 ftype->parameters = get<DeclarationWithType>().acceptL(node->params);
205
206 ftype->forall = get<TypeDecl>().acceptL( node->type->forall );
207
208 visitType(node->type, ftype);
209
[112fe04]210 auto decl = new FunctionDecl(
211 node->name,
212 Type::StorageClasses( node->storage.val ),
213 LinkageSpec::Spec( node->linkage.val ),
[954c954]214 ftype,
215 //get<FunctionType>().accept1( node->type ),
[d88f8b3b]216 {},
[112fe04]217 get<Attribute>().acceptL( node->attributes ),
218 Type::FuncSpecifiers( node->funcSpec.val )
219 );
[d88f8b3b]220 cache.emplace( node, decl );
221 decl->statements = get<CompoundStmt>().accept1( node->stmts );
[112fe04]222 decl->withExprs = get<Expression>().acceptL( node->withExprs );
[490fb92e]223 if ( ast::dereferenceOperator == node ) {
[0aedb01]224 Validate::dereferenceOperator = decl;
[157a816]225 }
[490fb92e]226 if ( ast::dtorStructDestroy == node ) {
[043a5b6]227 Validate::dtorStructDestroy = decl;
228 }
[112fe04]229 return declWithTypePostamble( decl, node );
[74dbbf6]230 }
231
[112fe04]232 const ast::Decl * namedTypePostamble( NamedTypeDecl * decl, const ast::NamedTypeDecl * node ) {
233 // base comes from constructor
234 decl->parameters = get<TypeDecl>().acceptL( node->params );
235 decl->assertions = get<DeclarationWithType>().acceptL( node->assertions );
[f685679]236 declPostamble( decl, node );
[74dbbf6]237 return nullptr;
238 }
239
[112fe04]240 const ast::Decl * visit( const ast::TypeDecl * node ) override final {
[b869ec5]241 if ( inCache( node ) ) return nullptr;
[112fe04]242 auto decl = new TypeDecl(
243 node->name,
244 Type::StorageClasses( node->storage.val ),
245 get<Type>().accept1( node->base ),
[b869ec5]246 (TypeDecl::Kind)(unsigned)node->kind,
[112fe04]247 node->sized,
248 get<Type>().accept1( node->init )
249 );
[b869ec5]250 cache.emplace( node, decl );
[112fe04]251 return namedTypePostamble( decl, node );
[74dbbf6]252 }
253
[112fe04]254 const ast::Decl * visit( const ast::TypedefDecl * node ) override final {
255 auto decl = new TypedefDecl(
256 node->name,
257 node->location,
258 Type::StorageClasses( node->storage.val ),
259 get<Type>().accept1( node->base ),
260 LinkageSpec::Spec( node->linkage.val )
261 );
262 return namedTypePostamble( decl, node );
[74dbbf6]263 }
264
[112fe04]265 const ast::Decl * aggregatePostamble( AggregateDecl * decl, const ast::AggregateDecl * node ) {
[f685679]266 cache.emplace( node, decl );
[112fe04]267 decl->members = get<Declaration>().acceptL( node->members );
268 decl->parameters = get<TypeDecl>().acceptL( node->params );
269 decl->body = node->body;
270 // attributes come from constructor
[b869ec5]271 decl->parent = get<AggregateDecl>().accept1( node->parent );
[f685679]272 declPostamble( decl, node );
[74dbbf6]273 return nullptr;
274 }
275
[112fe04]276 const ast::Decl * visit( const ast::StructDecl * node ) override final {
[b869ec5]277 if ( inCache( node ) ) return nullptr;
[112fe04]278 auto decl = new StructDecl(
279 node->name,
[312029a]280 (AggregateDecl::Aggregate)node->kind,
[112fe04]281 get<Attribute>().acceptL( node->attributes ),
282 LinkageSpec::Spec( node->linkage.val )
283 );
[043a5b6]284
[490fb92e]285 if ( ast::dtorStruct == node ) {
[043a5b6]286 Validate::dtorStruct = decl;
287 }
288
[112fe04]289 return aggregatePostamble( decl, node );
[74dbbf6]290 }
291
[112fe04]292 const ast::Decl * visit( const ast::UnionDecl * node ) override final {
[b869ec5]293 if ( inCache( node ) ) return nullptr;
[112fe04]294 auto decl = new UnionDecl(
295 node->name,
296 get<Attribute>().acceptL( node->attributes ),
297 LinkageSpec::Spec( node->linkage.val )
298 );
299 return aggregatePostamble( decl, node );
300 }
301
302 const ast::Decl * visit( const ast::EnumDecl * node ) override final {
[b869ec5]303 if ( inCache( node ) ) return nullptr;
[112fe04]304 auto decl = new EnumDecl(
305 node->name,
306 get<Attribute>().acceptL( node->attributes ),
307 LinkageSpec::Spec( node->linkage.val )
308 );
309 return aggregatePostamble( decl, node );
310 }
311
312 const ast::Decl * visit( const ast::TraitDecl * node ) override final {
[b869ec5]313 if ( inCache( node ) ) return nullptr;
[112fe04]314 auto decl = new TraitDecl(
315 node->name,
316 {},
317 LinkageSpec::Spec( node->linkage.val )
318 );
319 return aggregatePostamble( decl, node );
[74dbbf6]320 }
321
322 const ast::AsmDecl * visit( const ast::AsmDecl * node ) override final {
[112fe04]323 auto decl = new AsmDecl( get<AsmStmt>().accept1( node->stmt ) );
324 declPostamble( decl, node );
[74dbbf6]325 return nullptr;
326 }
327
328 const ast::StaticAssertDecl * visit( const ast::StaticAssertDecl * node ) override final {
[112fe04]329 auto decl = new StaticAssertDecl(
330 get<Expression>().accept1( node->cond ),
331 get<ConstantExpr>().accept1( node->msg )
332 );
333 declPostamble( decl, node );
[74dbbf6]334 return nullptr;
335 }
336
[112fe04]337 const ast::Stmt * stmtPostamble( Statement * stmt, const ast::Stmt * node ) {
[490fb92e]338 // force statements in old tree to be unique.
339 // cache.emplace( node, stmt );
340 readonlyCache.emplace( node, stmt );
[675d816]341 stmt->location = node->location;
342 stmt->labels = makeLabelL( stmt, node->labels );
343 this->node = stmt;
[74dbbf6]344 return nullptr;
345 }
346
[112fe04]347 const ast::CompoundStmt * visit( const ast::CompoundStmt * node ) override final {
[4073b16]348 if ( inCache( node ) ) return nullptr;
[112fe04]349 auto stmt = new CompoundStmt( get<Statement>().acceptL( node->kids ) );
350 stmtPostamble( stmt, node );
351 return nullptr;
352 }
353
[74dbbf6]354 const ast::Stmt * visit( const ast::ExprStmt * node ) override final {
[4073b16]355 if ( inCache( node ) ) return nullptr;
[f685679]356 auto stmt = new ExprStmt( nullptr );
357 stmt->expr = get<Expression>().accept1( node->expr );
[112fe04]358 return stmtPostamble( stmt, node );
[74dbbf6]359 }
360
361 const ast::Stmt * visit( const ast::AsmStmt * node ) override final {
[4073b16]362 if ( inCache( node ) ) return nullptr;
[675d816]363 auto stmt = new AsmStmt(
364 node->isVolatile,
365 get<Expression>().accept1( node->instruction ),
366 get<Expression>().acceptL( node->output ),
367 get<Expression>().acceptL( node->input ),
368 get<ConstantExpr>().acceptL( node->clobber ),
369 makeLabelL( nullptr, node->gotoLabels ) // What are these labelling?
370 );
[112fe04]371 return stmtPostamble( stmt, node );
[74dbbf6]372 }
373
374 const ast::Stmt * visit( const ast::DirectiveStmt * node ) override final {
[4073b16]375 if ( inCache( node ) ) return nullptr;
[675d816]376 auto stmt = new DirectiveStmt( node->directive );
[112fe04]377 return stmtPostamble( stmt, node );
[74dbbf6]378 }
379
380 const ast::Stmt * visit( const ast::IfStmt * node ) override final {
[4073b16]381 if ( inCache( node ) ) return nullptr;
[675d816]382 auto stmt = new IfStmt(
383 get<Expression>().accept1( node->cond ),
384 get<Statement>().accept1( node->thenPart ),
385 get<Statement>().accept1( node->elsePart ),
386 get<Statement>().acceptL( node->inits )
387 );
[112fe04]388 return stmtPostamble( stmt, node );
[74dbbf6]389 }
390
[675d816]391 const ast::Stmt * visit( const ast::SwitchStmt * node ) override final {
[4073b16]392 if ( inCache( node ) ) return nullptr;
[675d816]393 auto stmt = new SwitchStmt(
394 get<Expression>().accept1( node->cond ),
395 get<Statement>().acceptL( node->stmts )
396 );
[112fe04]397 return stmtPostamble( stmt, node );
[74dbbf6]398 }
399
[675d816]400 const ast::Stmt * visit( const ast::CaseStmt * node ) override final {
[4073b16]401 if ( inCache( node ) ) return nullptr;
[675d816]402 auto stmt = new CaseStmt(
403 get<Expression>().accept1( node->cond ),
404 get<Statement>().acceptL( node->stmts ),
405 node->isDefault()
406 );
[112fe04]407 return stmtPostamble( stmt, node );
[74dbbf6]408 }
409
[675d816]410 const ast::Stmt * visit( const ast::WhileStmt * node ) override final {
[4073b16]411 if ( inCache( node ) ) return nullptr;
[675d816]412 auto inits = get<Statement>().acceptL( node->inits );
413 auto stmt = new WhileStmt(
414 get<Expression>().accept1( node->cond ),
415 get<Statement>().accept1( node->body ),
416 inits,
417 node->isDoWhile
418 );
[112fe04]419 return stmtPostamble( stmt, node );
[74dbbf6]420 }
421
[675d816]422 const ast::Stmt * visit( const ast::ForStmt * node ) override final {
[4073b16]423 if ( inCache( node ) ) return nullptr;
[675d816]424 auto stmt = new ForStmt(
425 get<Statement>().acceptL( node->inits ),
426 get<Expression>().accept1( node->cond ),
427 get<Expression>().accept1( node->inc ),
428 get<Statement>().accept1( node->body )
429 );
[112fe04]430 return stmtPostamble( stmt, node );
[74dbbf6]431 }
432
433 const ast::Stmt * visit( const ast::BranchStmt * node ) override final {
[4073b16]434 if ( inCache( node ) ) return nullptr;
[675d816]435 BranchStmt * stmt;
436 if (node->computedTarget) {
437 stmt = new BranchStmt( get<Expression>().accept1( node->computedTarget ),
438 BranchStmt::Goto );
439 } else {
440 BranchStmt::Type type;
441 switch (node->kind) {
442 #define CASE(n) \
443 case ast::BranchStmt::n: \
444 type = BranchStmt::n; \
445 break
446 CASE(Goto);
447 CASE(Break);
448 CASE(Continue);
449 CASE(FallThrough);
450 CASE(FallThroughDefault);
451 #undef CASE
452 default:
453 assertf(false, "Invalid ast::BranchStmt::Kind: %d\n", node->kind);
454 }
455
456 // The labels here are also weird.
457 stmt = new BranchStmt( makeLabel( nullptr, node->originalTarget ), type );
458 stmt->target = makeLabel( stmt, node->target );
459 }
[112fe04]460 return stmtPostamble( stmt, node );
[74dbbf6]461 }
462
463 const ast::Stmt * visit( const ast::ReturnStmt * node ) override final {
[4073b16]464 if ( inCache( node ) ) return nullptr;
[675d816]465 auto stmt = new ReturnStmt( get<Expression>().accept1( node->expr ) );
[112fe04]466 return stmtPostamble( stmt, node );
[74dbbf6]467 }
468
469 const ast::Stmt * visit( const ast::ThrowStmt * node ) override final {
[4073b16]470 if ( inCache( node ) ) return nullptr;
[675d816]471 ThrowStmt::Kind kind;
472 switch (node->kind) {
[6f4b7f2]473 case ast::ExceptionKind::Terminate:
[675d816]474 kind = ThrowStmt::Terminate;
475 break;
[6f4b7f2]476 case ast::ExceptionKind::Resume:
[675d816]477 kind = ThrowStmt::Resume;
478 break;
479 default:
480 assertf(false, "Invalid ast::ThrowStmt::Kind: %d\n", node->kind);
481 }
482 auto stmt = new ThrowStmt(
483 kind,
484 get<Expression>().accept1( node->expr ),
485 get<Expression>().accept1( node->target )
486 );
[112fe04]487 return stmtPostamble( stmt, node );
[74dbbf6]488 }
489
490 const ast::Stmt * visit( const ast::TryStmt * node ) override final {
[4073b16]491 if ( inCache( node ) ) return nullptr;
[675d816]492 auto handlers = get<CatchStmt>().acceptL( node->handlers );
493 auto stmt = new TryStmt(
494 get<CompoundStmt>().accept1( node->body ),
495 handlers,
496 get<FinallyStmt>().accept1( node->finally )
497 );
[112fe04]498 return stmtPostamble( stmt, node );
[74dbbf6]499 }
500
501 const ast::Stmt * visit( const ast::CatchStmt * node ) override final {
[4073b16]502 if ( inCache( node ) ) return nullptr;
[675d816]503 CatchStmt::Kind kind;
504 switch (node->kind) {
[6f4b7f2]505 case ast::ExceptionKind::Terminate:
[675d816]506 kind = CatchStmt::Terminate;
507 break;
[6f4b7f2]508 case ast::ExceptionKind::Resume:
[675d816]509 kind = CatchStmt::Resume;
510 break;
511 default:
512 assertf(false, "Invalid ast::CatchStmt::Kind: %d\n", node->kind);
513 }
514 auto stmt = new CatchStmt(
515 kind,
516 get<Declaration>().accept1( node->decl ),
517 get<Expression>().accept1( node->cond ),
518 get<Statement>().accept1( node->body )
519 );
[112fe04]520 return stmtPostamble( stmt, node );
[74dbbf6]521 }
522
523 const ast::Stmt * visit( const ast::FinallyStmt * node ) override final {
[4073b16]524 if ( inCache( node ) ) return nullptr;
[675d816]525 auto stmt = new FinallyStmt( get<CompoundStmt>().accept1( node->body ) );
[112fe04]526 return stmtPostamble( stmt, node );
[74dbbf6]527 }
528
[37cdd97]529 const ast::Stmt * visit(const ast::SuspendStmt * node ) override final {
530 if ( inCache( node ) ) return nullptr;
531 auto stmt = new SuspendStmt();
532 stmt->then = get<CompoundStmt>().accept1( node->then );
533 switch(node->type) {
534 case ast::SuspendStmt::None : stmt->type = SuspendStmt::None ; break;
535 case ast::SuspendStmt::Coroutine: stmt->type = SuspendStmt::Coroutine; break;
536 case ast::SuspendStmt::Generator: stmt->type = SuspendStmt::Generator; break;
537 }
538 return stmtPostamble( stmt, node );
539 }
540
[74dbbf6]541 const ast::Stmt * visit( const ast::WaitForStmt * node ) override final {
[4073b16]542 if ( inCache( node ) ) return nullptr;
[675d816]543 auto stmt = new WaitForStmt;
544 stmt->clauses.reserve( node->clauses.size() );
545 for ( auto clause : node->clauses ) {
546 stmt->clauses.push_back({{
[e0016a5]547 get<Expression>().accept1( clause.target.func ),
548 get<Expression>().acceptL( clause.target.args ),
[675d816]549 },
550 get<Statement>().accept1( clause.stmt ),
551 get<Expression>().accept1( clause.cond ),
552 });
553 }
554 stmt->timeout = {
555 get<Expression>().accept1( node->timeout.time ),
556 get<Statement>().accept1( node->timeout.stmt ),
557 get<Expression>().accept1( node->timeout.cond ),
558 };
559 stmt->orelse = {
560 get<Statement>().accept1( node->orElse.stmt ),
561 get<Expression>().accept1( node->orElse.cond ),
562 };
[112fe04]563 return stmtPostamble( stmt, node );
[74dbbf6]564 }
565
[e67991f]566 const ast::Decl * visit( const ast::WithStmt * node ) override final {
[4073b16]567 if ( inCache( node ) ) return nullptr;
[675d816]568 auto stmt = new WithStmt(
569 get<Expression>().acceptL( node->exprs ),
570 get<Statement>().accept1( node->stmt )
571 );
[e67991f]572 declPostamble( stmt, node );
573 return nullptr;
[74dbbf6]574 }
575
576 const ast::NullStmt * visit( const ast::NullStmt * node ) override final {
[4073b16]577 if ( inCache( node ) ) return nullptr;
[675d816]578 auto stmt = new NullStmt();
[112fe04]579 stmtPostamble( stmt, node );
[74dbbf6]580 return nullptr;
581 }
582
583 const ast::Stmt * visit( const ast::DeclStmt * node ) override final {
[4073b16]584 if ( inCache( node ) ) return nullptr;
[675d816]585 auto stmt = new DeclStmt( get<Declaration>().accept1( node->decl ) );
[112fe04]586 return stmtPostamble( stmt, node );
[74dbbf6]587 }
588
589 const ast::Stmt * visit( const ast::ImplicitCtorDtorStmt * node ) override final {
[4073b16]590 if ( inCache( node ) ) return nullptr;
591 auto stmt = new ImplicitCtorDtorStmt{
592 get<Statement>().accept1( node->callStmt )
593 };
594 return stmtPostamble( stmt, node );
[74dbbf6]595 }
596
[19e567dd]597 TypeSubstitution * convertTypeSubstitution(const ast::TypeSubstitution * src) {
598
[f685679]599 if (!src) return nullptr;
600
[19e567dd]601 TypeSubstitution *rslt = new TypeSubstitution();
602
603 for (decltype(src->begin()) src_i = src->begin(); src_i != src->end(); src_i++) {
604 rslt->add( src_i->first,
605 get<Type>().accept1(src_i->second) );
606 }
607
608 for (decltype(src->beginVar()) src_i = src->beginVar(); src_i != src->endVar(); src_i++) {
609 rslt->addVar( src_i->first,
610 get<Expression>().accept1(src_i->second) );
611 }
612
613 return rslt;
614 }
615
616 void convertInferUnion(std::map<UniqueId,ParamEntry> &tgtInferParams,
617 std::vector<UniqueId> &tgtResnSlots,
618 const ast::Expr::InferUnion &srcInferred ) {
619
620 assert( tgtInferParams.empty() );
621 assert( tgtResnSlots.empty() );
622
[07d867b]623 if ( srcInferred.data.inferParams ) {
[60aaa51d]624 const ast::InferredParams &srcParams = srcInferred.inferParams();
[8b34df0]625 for (auto & srcParam : srcParams) {
626 auto res = tgtInferParams.emplace(srcParam.first, ParamEntry(
[19e567dd]627 srcParam.second.decl,
[07d867b]628 get<Declaration>().accept1(srcParam.second.declptr),
629 get<Type>().accept1(srcParam.second.actualType)->clone(),
630 get<Type>().accept1(srcParam.second.formalType)->clone(),
631 get<Expression>().accept1(srcParam.second.expr)->clone()
[8b34df0]632 ));
633 assert(res.second);
[19e567dd]634 }
[07d867b]635 }
636 if ( srcInferred.data.resnSlots ) {
[60aaa51d]637 const ast::ResnSlots &srcSlots = srcInferred.resnSlots();
[19e567dd]638 for (auto srcSlot : srcSlots) {
639 tgtResnSlots.push_back(srcSlot);
640 }
641 }
642 }
643
[20de6fb]644 Expression * visitBaseExpr_skipResultType(const ast::Expr * src, Expression * tgt) {
[19e567dd]645
[20de6fb]646 tgt->location = src->location;
647 tgt->env = convertTypeSubstitution(src->env);
[19e567dd]648 tgt->extension = src->extension;
649
[20de6fb]650 convertInferUnion(tgt->inferParams, tgt->resnSlots, src->inferred);
[19e567dd]651 return tgt;
652 }
653
[20de6fb]654 Expression * visitBaseExpr(const ast::Expr * src, Expression * tgt) {
655
656 tgt->result = get<Type>().accept1(src->result);
[f6cc734e]657 // Unconditionally use a clone of the result type.
658 // We know this will leak some objects: much of the immediate conversion result.
659 // In some cases, using the conversion result directly gives unintended object sharing.
660 // A parameter (ObjectDecl, a child of a FunctionType) is shared by the weak-ref cache.
661 // But tgt->result must be fully owned privately by tgt.
662 // Applying these conservative copies here means
663 // - weak references point at the declaration's copy, not these expr.result copies (good)
664 // - we copy more objects than really needed (bad, tolerated)
665 if (tgt->result) {
666 tgt->result = tgt->result->clone();
667 }
[20de6fb]668 return visitBaseExpr_skipResultType(src, tgt);
669 }
670
[74dbbf6]671 const ast::Expr * visit( const ast::ApplicationExpr * node ) override final {
[19e567dd]672 auto expr = visitBaseExpr( node,
673 new ApplicationExpr(
674 get<Expression>().accept1(node->func),
675 get<Expression>().acceptL(node->args)
676 )
677 );
678 this->node = expr;
[74dbbf6]679 return nullptr;
680 }
681
682 const ast::Expr * visit( const ast::UntypedExpr * node ) override final {
[19e567dd]683 auto expr = visitBaseExpr( node,
684 new UntypedExpr(
685 get<Expression>().accept1(node->func),
686 get<Expression>().acceptL(node->args)
687 )
688 );
689 this->node = expr;
[74dbbf6]690 return nullptr;
691 }
692
693 const ast::Expr * visit( const ast::NameExpr * node ) override final {
[19e567dd]694 auto expr = visitBaseExpr( node,
695 new NameExpr(
696 node->name
697 )
698 );
699 this->node = expr;
[74dbbf6]700 return nullptr;
701 }
702
703 const ast::Expr * visit( const ast::AddressExpr * node ) override final {
[28c89f4]704 auto expr = visitBaseExpr( node,
705 new AddressExpr(
706 get<Expression>().accept1(node->arg)
707 )
708 );
709 this->node = expr;
[74dbbf6]710 return nullptr;
711 }
712
713 const ast::Expr * visit( const ast::LabelAddressExpr * node ) override final {
[28c89f4]714 auto expr = visitBaseExpr( node,
715 new LabelAddressExpr(
716 makeLabel(nullptr, node->arg)
717 )
718 );
719 this->node = expr;
[74dbbf6]720 return nullptr;
721 }
722
723 const ast::Expr * visit( const ast::CastExpr * node ) override final {
[28c89f4]724 auto expr = visitBaseExpr( node,
725 new CastExpr(
726 get<Expression>().accept1(node->arg),
727 (node->isGenerated == ast::GeneratedCast)
728 )
729 );
730 this->node = expr;
[74dbbf6]731 return nullptr;
732 }
733
734 const ast::Expr * visit( const ast::KeywordCastExpr * node ) override final {
[312029a]735 AggregateDecl::Aggregate castTarget = (AggregateDecl::Aggregate)node->target;
736 assert( AggregateDecl::Generator <= castTarget && castTarget <= AggregateDecl::Thread );
[28c89f4]737 auto expr = visitBaseExpr( node,
738 new KeywordCastExpr(
739 get<Expression>().accept1(node->arg),
[4ef08f7]740 castTarget,
741 {node->concrete_target.field, node->concrete_target.getter}
[28c89f4]742 )
743 );
744 this->node = expr;
[74dbbf6]745 return nullptr;
746 }
747
748 const ast::Expr * visit( const ast::VirtualCastExpr * node ) override final {
[20de6fb]749 auto expr = visitBaseExpr_skipResultType( node,
[28c89f4]750 new VirtualCastExpr(
751 get<Expression>().accept1(node->arg),
[20de6fb]752 get<Type>().accept1(node->result)
[28c89f4]753 )
754 );
755 this->node = expr;
[74dbbf6]756 return nullptr;
757 }
758
759 const ast::Expr * visit( const ast::UntypedMemberExpr * node ) override final {
[28c89f4]760 auto expr = visitBaseExpr( node,
761 new UntypedMemberExpr(
762 get<Expression>().accept1(node->member),
763 get<Expression>().accept1(node->aggregate)
764 )
765 );
766 this->node = expr;
[74dbbf6]767 return nullptr;
768 }
769
770 const ast::Expr * visit( const ast::MemberExpr * node ) override final {
[28c89f4]771 auto expr = visitBaseExpr( node,
772 new MemberExpr(
[2a54479]773 get<DeclarationWithType>().accept1(node->member),
[28c89f4]774 get<Expression>().accept1(node->aggregate)
775 )
776 );
777 this->node = expr;
[74dbbf6]778 return nullptr;
779 }
780
781 const ast::Expr * visit( const ast::VariableExpr * node ) override final {
[546e712]782 auto expr = new VariableExpr();
783 expr->var = get<DeclarationWithType>().accept1(node->var);
[6896548]784 visitBaseExpr( node, expr );
[28c89f4]785 this->node = expr;
[74dbbf6]786 return nullptr;
787 }
788
789 const ast::Expr * visit( const ast::ConstantExpr * node ) override final {
[c36298d]790 // Old world: two types: rslt->constant.type, rslt->result
791 // New workd: one public type: node->result, plus node->underlyer only to support roundtrip conversion
792 // preserving underlyer because the correct type for string literals is complicated to construct,
793 // and distinguishing a string from other literals using the type is hard to do accurately
794 // Both worlds: the outer, expression-level type can change during resolution
795 // for a string, that's char[k] before-resolve and char * after
796 // Old world: the inner Constant type stays what it was built with
797 // for a string, that's char[k] always
798 // Both worlds: the "rep" field of a constant is the C source file fragment that compiles to the desired value
799 // for a string, that includes outer quotes, backslashes, et al cases from the Literals test
800 ConstantExpr *rslt = new ConstantExpr(Constant(
801 get<Type>().accept1(node->underlyer),
802 node->rep,
803 node->ival));
[28c89f4]804 auto expr = visitBaseExpr( node, rslt );
805 this->node = expr;
[74dbbf6]806 return nullptr;
807 }
808
809 const ast::Expr * visit( const ast::SizeofExpr * node ) override final {
[28c89f4]810 assert (node->expr || node->type);
811 assert (! (node->expr && node->type));
812 SizeofExpr *rslt;
813 if (node->expr) {
814 rslt = new SizeofExpr(
815 get<Expression>().accept1(node->expr)
816 );
817 assert (!rslt->isType);
818 }
[0b73f0c]819 else {
820 assert(node->type);
[28c89f4]821 rslt = new SizeofExpr(
822 get<Type>().accept1(node->type)
823 );
824 assert (rslt->isType);
825 }
826 auto expr = visitBaseExpr( node, rslt );
827 this->node = expr;
[74dbbf6]828 return nullptr;
829 }
830
831 const ast::Expr * visit( const ast::AlignofExpr * node ) override final {
[28c89f4]832 assert (node->expr || node->type);
833 assert (! (node->expr && node->type));
834 AlignofExpr *rslt;
835 if (node->expr) {
836 rslt = new AlignofExpr(
837 get<Expression>().accept1(node->expr)
838 );
839 assert (!rslt->isType);
840 }
[0b73f0c]841 else {
842 assert(node->type);
[28c89f4]843 rslt = new AlignofExpr(
844 get<Type>().accept1(node->type)
845 );
846 assert (rslt->isType);
847 }
848 auto expr = visitBaseExpr( node, rslt );
849 this->node = expr;
[74dbbf6]850 return nullptr;
851 }
852
853 const ast::Expr * visit( const ast::UntypedOffsetofExpr * node ) override final {
[28c89f4]854 auto expr = visitBaseExpr( node,
855 new UntypedOffsetofExpr(
856 get<Type>().accept1(node->type),
857 node->member
858 )
859 );
860 this->node = expr;
[74dbbf6]861 return nullptr;
862 }
863
864 const ast::Expr * visit( const ast::OffsetofExpr * node ) override final {
[28c89f4]865 auto expr = visitBaseExpr( node,
866 new OffsetofExpr(
867 get<Type>().accept1(node->type),
[2a54479]868 get<DeclarationWithType>().accept1(node->member)
[28c89f4]869 )
870 );
871 this->node = expr;
[74dbbf6]872 return nullptr;
873 }
874
875 const ast::Expr * visit( const ast::OffsetPackExpr * node ) override final {
[28c89f4]876 auto expr = visitBaseExpr( node,
877 new OffsetPackExpr(
878 get<StructInstType>().accept1(node->type)
879 )
880 );
881 this->node = expr;
[74dbbf6]882 return nullptr;
883 }
884
885 const ast::Expr * visit( const ast::LogicalExpr * node ) override final {
[28c89f4]886 assert (node->isAnd == ast::LogicalFlag::AndExpr ||
887 node->isAnd == ast::LogicalFlag::OrExpr );
888 auto expr = visitBaseExpr( node,
889 new LogicalExpr(
890 get<Expression>().accept1(node->arg1),
891 get<Expression>().accept1(node->arg2),
892 (node->isAnd == ast::LogicalFlag::AndExpr)
893 )
894 );
895 this->node = expr;
[74dbbf6]896 return nullptr;
897 }
898
899 const ast::Expr * visit( const ast::ConditionalExpr * node ) override final {
[28c89f4]900 auto expr = visitBaseExpr( node,
901 new ConditionalExpr(
902 get<Expression>().accept1(node->arg1),
903 get<Expression>().accept1(node->arg2),
904 get<Expression>().accept1(node->arg3)
905 )
906 );
907 this->node = expr;
[74dbbf6]908 return nullptr;
909 }
910
911 const ast::Expr * visit( const ast::CommaExpr * node ) override final {
[28c89f4]912 auto expr = visitBaseExpr( node,
913 new CommaExpr(
914 get<Expression>().accept1(node->arg1),
915 get<Expression>().accept1(node->arg2)
916 )
917 );
918 this->node = expr;
[74dbbf6]919 return nullptr;
920 }
921
922 const ast::Expr * visit( const ast::TypeExpr * node ) override final {
[20de6fb]923 auto expr = visitBaseExpr( node,
924 new TypeExpr(
925 get<Type>().accept1(node->type)
926 )
927 );
928 this->node = expr;
[74dbbf6]929 return nullptr;
930 }
931
932 const ast::Expr * visit( const ast::AsmExpr * node ) override final {
[20de6fb]933 auto expr = visitBaseExpr( node,
934 new AsmExpr(
[665f432]935 new std::string(node->inout),
[20de6fb]936 get<Expression>().accept1(node->constraint),
937 get<Expression>().accept1(node->operand)
938 )
939 );
940 this->node = expr;
[74dbbf6]941 return nullptr;
942 }
943
944 const ast::Expr * visit( const ast::ImplicitCopyCtorExpr * node ) override final {
[20de6fb]945 auto rslt = new ImplicitCopyCtorExpr(
946 get<ApplicationExpr>().accept1(node->callExpr)
947 );
948
949 auto expr = visitBaseExpr( node, rslt );
950 this->node = expr;
[74dbbf6]951 return nullptr;
952 }
953
954 const ast::Expr * visit( const ast::ConstructorExpr * node ) override final {
[20de6fb]955 auto expr = visitBaseExpr( node,
956 new ConstructorExpr(
957 get<Expression>().accept1(node->callExpr)
958 )
959 );
960 this->node = expr;
[74dbbf6]961 return nullptr;
962 }
963
964 const ast::Expr * visit( const ast::CompoundLiteralExpr * node ) override final {
[20de6fb]965 auto expr = visitBaseExpr_skipResultType( node,
966 new CompoundLiteralExpr(
967 get<Type>().accept1(node->result),
968 get<Initializer>().accept1(node->init)
969 )
970 );
971 this->node = expr;
[74dbbf6]972 return nullptr;
973 }
974
975 const ast::Expr * visit( const ast::RangeExpr * node ) override final {
[20de6fb]976 auto expr = visitBaseExpr( node,
977 new RangeExpr(
978 get<Expression>().accept1(node->low),
979 get<Expression>().accept1(node->high)
980 )
981 );
982 this->node = expr;
[74dbbf6]983 return nullptr;
984 }
985
986 const ast::Expr * visit( const ast::UntypedTupleExpr * node ) override final {
[20de6fb]987 auto expr = visitBaseExpr( node,
988 new UntypedTupleExpr(
989 get<Expression>().acceptL(node->exprs)
990 )
991 );
992 this->node = expr;
[74dbbf6]993 return nullptr;
994 }
995
996 const ast::Expr * visit( const ast::TupleExpr * node ) override final {
[20de6fb]997 auto expr = visitBaseExpr( node,
[6e55240]998 new TupleExpr(
[20de6fb]999 get<Expression>().acceptL(node->exprs)
1000 )
1001 );
1002 this->node = expr;
[74dbbf6]1003 return nullptr;
1004 }
1005
1006 const ast::Expr * visit( const ast::TupleIndexExpr * node ) override final {
[20de6fb]1007 auto expr = visitBaseExpr( node,
1008 new TupleIndexExpr(
1009 get<Expression>().accept1(node->tuple),
1010 node->index
1011 )
1012 );
1013 this->node = expr;
[74dbbf6]1014 return nullptr;
1015 }
1016
1017 const ast::Expr * visit( const ast::TupleAssignExpr * node ) override final {
[20de6fb]1018 auto expr = visitBaseExpr( node,
1019 new TupleAssignExpr(
1020 get<StmtExpr>().accept1(node->stmtExpr)
1021 )
1022 );
1023 this->node = expr;
[74dbbf6]1024 return nullptr;
1025 }
1026
1027 const ast::Expr * visit( const ast::StmtExpr * node ) override final {
[8ff586c]1028 auto stmts = node->stmts;
1029 // disable sharing between multiple StmtExprs explicitly.
[490fb92e]1030 // this should no longer be true.
1031
[20de6fb]1032 auto rslt = new StmtExpr(
[8ff586c]1033 get<CompoundStmt>().accept1(stmts)
[20de6fb]1034 );
1035
1036 rslt->returnDecls = get<ObjectDecl>().acceptL(node->returnDecls);
1037 rslt->dtors = get<Expression>().acceptL(node->dtors);
[490fb92e]1038 if (node->resultExpr) {
1039 // this MUST be found by children visit
1040 rslt->resultExpr = strict_dynamic_cast<ExprStmt *>(readonlyCache.at(node->resultExpr));
1041 }
[20de6fb]1042
1043 auto expr = visitBaseExpr( node, rslt );
1044 this->node = expr;
[74dbbf6]1045 return nullptr;
1046 }
1047
1048 const ast::Expr * visit( const ast::UniqueExpr * node ) override final {
[20de6fb]1049 auto rslt = new UniqueExpr(
[a2a85658]1050 get<Expression>().accept1(node->expr),
1051 node->id
[20de6fb]1052 );
1053
1054 rslt->object = get<ObjectDecl> ().accept1(node->object);
1055 rslt->var = get<VariableExpr>().accept1(node->var);
1056
1057 auto expr = visitBaseExpr( node, rslt );
[490fb92e]1058 this->node = expr->clone();
[74dbbf6]1059 return nullptr;
1060 }
1061
1062 const ast::Expr * visit( const ast::UntypedInitExpr * node ) override final {
[20de6fb]1063 std::list<InitAlternative> initAlts;
1064 for (auto ia : node->initAlts) {
1065 initAlts.push_back(InitAlternative(
1066 get<Type> ().accept1(ia.type),
1067 get<Designation>().accept1(ia.designation)
1068 ));
1069 }
1070 auto expr = visitBaseExpr( node,
1071 new UntypedInitExpr(
1072 get<Expression>().accept1(node->expr),
1073 initAlts
1074 )
1075 );
1076 this->node = expr;
[74dbbf6]1077 return nullptr;
1078 }
1079
1080 const ast::Expr * visit( const ast::InitExpr * node ) override final {
[20de6fb]1081 auto expr = visitBaseExpr( node,
1082 new InitExpr(
1083 get<Expression>().accept1(node->expr),
1084 get<Designation>().accept1(node->designation)
1085 )
1086 );
1087 this->node = expr;
[74dbbf6]1088 return nullptr;
1089 }
1090
1091 const ast::Expr * visit( const ast::DeletedExpr * node ) override final {
[20de6fb]1092 auto expr = visitBaseExpr( node,
1093 new DeletedExpr(
1094 get<Expression>().accept1(node->expr),
1095 inCache(node->deleteStmt) ?
[e67991f]1096 strict_dynamic_cast<Declaration*>(this->node) :
1097 get<Declaration>().accept1(node->deleteStmt)
[20de6fb]1098 )
1099 );
1100 this->node = expr;
[74dbbf6]1101 return nullptr;
1102 }
1103
1104 const ast::Expr * visit( const ast::DefaultArgExpr * node ) override final {
[20de6fb]1105 auto expr = visitBaseExpr( node,
1106 new DefaultArgExpr(
1107 get<Expression>().accept1(node->expr)
1108 )
1109 );
1110 this->node = expr;
[74dbbf6]1111 return nullptr;
1112 }
1113
1114 const ast::Expr * visit( const ast::GenericExpr * node ) override final {
[20de6fb]1115 std::list<GenericExpr::Association> associations;
1116 for (auto association : node->associations) {
1117 associations.push_back(GenericExpr::Association(
1118 get<Type> ().accept1(association.type),
1119 get<Expression>().accept1(association.expr)
1120 ));
1121 }
1122 auto expr = visitBaseExpr( node,
1123 new GenericExpr(
1124 get<Expression>().accept1(node->control),
1125 associations
1126 )
1127 );
1128 this->node = expr;
[74dbbf6]1129 return nullptr;
1130 }
1131
[1ae47de]1132 const ast::Type * visitType( const ast::Type * node, Type * type ) {
1133 // Some types do this in their constructor so add a check.
1134 if ( !node->attributes.empty() && type->attributes.empty() ) {
1135 type->attributes = get<Attribute>().acceptL( node->attributes );
1136 }
1137 this->node = type;
[74dbbf6]1138 return nullptr;
1139 }
1140
[1ae47de]1141 const ast::Type * visit( const ast::VoidType * node ) override final {
1142 return visitType( node, new VoidType{ cv( node ) } );
1143 }
1144
[74dbbf6]1145 const ast::Type * visit( const ast::BasicType * node ) override final {
[2a54479]1146 auto type = new BasicType{ cv( node ), (BasicType::Kind)(unsigned)node->kind };
1147 // I believe this should always be a BasicType.
[490fb92e]1148 if ( ast::sizeType == node ) {
[2a54479]1149 Validate::SizeType = type;
1150 }
[1ae47de]1151 return visitType( node, type );
[74dbbf6]1152 }
1153
1154 const ast::Type * visit( const ast::PointerType * node ) override final {
[1ae47de]1155 return visitType( node, new PointerType{
[d148778]1156 cv( node ),
1157 get<Type>().accept1( node->base ),
1158 get<Expression>().accept1( node->dimension ),
[746ae82]1159 (bool)node->isVarLen,
1160 (bool)node->isStatic
[1ae47de]1161 } );
[74dbbf6]1162 }
1163
1164 const ast::Type * visit( const ast::ArrayType * node ) override final {
[1ae47de]1165 return visitType( node, new ArrayType{
[d148778]1166 cv( node ),
1167 get<Type>().accept1( node->base ),
1168 get<Expression>().accept1( node->dimension ),
[746ae82]1169 (bool)node->isVarLen,
1170 (bool)node->isStatic
[1ae47de]1171 } );
[74dbbf6]1172 }
1173
1174 const ast::Type * visit( const ast::ReferenceType * node ) override final {
[1ae47de]1175 return visitType( node, new ReferenceType{
[d148778]1176 cv( node ),
1177 get<Type>().accept1( node->base )
[1ae47de]1178 } );
[74dbbf6]1179 }
1180
1181 const ast::Type * visit( const ast::QualifiedType * node ) override final {
[1ae47de]1182 return visitType( node, new QualifiedType{
[d148778]1183 cv( node ),
1184 get<Type>().accept1( node->parent ),
1185 get<Type>().accept1( node->child )
[1ae47de]1186 } );
[74dbbf6]1187 }
1188
1189 const ast::Type * visit( const ast::FunctionType * node ) override final {
[954c954]1190 static std::string dummy_paramvar_prefix = "__param_";
1191 static std::string dummy_returnvar_prefix = "__retval_";
1192
[746ae82]1193 auto ty = new FunctionType {
[0b57626]1194 cv( node ),
[746ae82]1195 (bool)node->isVarArgs
1196 };
[954c954]1197 auto returns = get<Type>().acceptL(node->returns);
1198 auto params = get<Type>().acceptL(node->params);
1199
1200 int ret_index = 0;
1201 for (auto t: returns) {
1202 // xxx - LinkageSpec shouldn't matter but needs to be something
1203 ObjectDecl * dummy = new ObjectDecl(dummy_returnvar_prefix + std::to_string(ret_index++), {}, LinkageSpec::C, nullptr, t, nullptr);
1204 ty->returnVals.push_back(dummy);
1205 }
1206 int param_index = 0;
1207 for (auto t: params) {
1208 ObjectDecl * dummy = new ObjectDecl(dummy_paramvar_prefix + std::to_string(param_index++), {}, LinkageSpec::C, nullptr, t, nullptr);
1209 ty->parameters.push_back(dummy);
1210 }
1211
1212 // ty->returnVals = get<DeclarationWithType>().acceptL( node->returns );
1213 // ty->parameters = get<DeclarationWithType>().acceptL( node->params );
[d148778]1214 ty->forall = get<TypeDecl>().acceptL( node->forall );
[1ae47de]1215 return visitType( node, ty );
[74dbbf6]1216 }
1217
[98e8b3b]1218 const ast::Type * postvisit( const ast::BaseInstType * old, ReferenceToType * ty ) {
[b869ec5]1219 ty->forall = get<TypeDecl>().acceptL( old->forall );
1220 ty->parameters = get<Expression>().acceptL( old->params );
1221 ty->hoistType = old->hoistType;
[1ae47de]1222 return visitType( old, ty );
[b869ec5]1223 }
1224
[74dbbf6]1225 const ast::Type * visit( const ast::StructInstType * node ) override final {
[b869ec5]1226 StructInstType * ty;
1227 if ( node->base ) {
1228 ty = new StructInstType{
1229 cv( node ),
1230 get<StructDecl>().accept1( node->base ),
1231 get<Attribute>().acceptL( node->attributes )
1232 };
1233 } else {
1234 ty = new StructInstType{
1235 cv( node ),
1236 node->name,
1237 get<Attribute>().acceptL( node->attributes )
1238 };
1239 }
[1ae47de]1240 return postvisit( node, ty );
[74dbbf6]1241 }
1242
1243 const ast::Type * visit( const ast::UnionInstType * node ) override final {
[b869ec5]1244 UnionInstType * ty;
1245 if ( node->base ) {
1246 ty = new UnionInstType{
1247 cv( node ),
1248 get<UnionDecl>().accept1( node->base ),
1249 get<Attribute>().acceptL( node->attributes )
1250 };
1251 } else {
1252 ty = new UnionInstType{
1253 cv( node ),
1254 node->name,
1255 get<Attribute>().acceptL( node->attributes )
1256 };
1257 }
[1ae47de]1258 return postvisit( node, ty );
[74dbbf6]1259 }
1260
1261 const ast::Type * visit( const ast::EnumInstType * node ) override final {
[b869ec5]1262 EnumInstType * ty;
1263 if ( node->base ) {
1264 ty = new EnumInstType{
1265 cv( node ),
1266 get<EnumDecl>().accept1( node->base ),
1267 get<Attribute>().acceptL( node->attributes )
1268 };
1269 } else {
1270 ty = new EnumInstType{
1271 cv( node ),
1272 node->name,
1273 get<Attribute>().acceptL( node->attributes )
1274 };
1275 }
[1ae47de]1276 return postvisit( node, ty );
[74dbbf6]1277 }
1278
1279 const ast::Type * visit( const ast::TraitInstType * node ) override final {
[b869ec5]1280 TraitInstType * ty;
1281 if ( node->base ) {
1282 ty = new TraitInstType{
1283 cv( node ),
1284 get<TraitDecl>().accept1( node->base ),
1285 get<Attribute>().acceptL( node->attributes )
1286 };
1287 } else {
1288 ty = new TraitInstType{
1289 cv( node ),
1290 node->name,
1291 get<Attribute>().acceptL( node->attributes )
1292 };
1293 }
[1ae47de]1294 return postvisit( node, ty );
[74dbbf6]1295 }
1296
1297 const ast::Type * visit( const ast::TypeInstType * node ) override final {
[b869ec5]1298 TypeInstType * ty;
1299 if ( node->base ) {
1300 ty = new TypeInstType{
1301 cv( node ),
1302 node->name,
1303 get<TypeDecl>().accept1( node->base ),
1304 get<Attribute>().acceptL( node->attributes )
1305 };
1306 } else {
1307 ty = new TypeInstType{
1308 cv( node ),
1309 node->name,
[07de76b]1310 node->kind == ast::TypeDecl::Ftype,
[b869ec5]1311 get<Attribute>().acceptL( node->attributes )
1312 };
1313 }
[1ae47de]1314 return postvisit( node, ty );
[74dbbf6]1315 }
1316
1317 const ast::Type * visit( const ast::TupleType * node ) override final {
[1ae47de]1318 return visitType( node, new TupleType{
[746ae82]1319 cv( node ),
1320 get<Type>().acceptL( node->types )
1321 // members generated by TupleType c'tor
[1ae47de]1322 } );
[74dbbf6]1323 }
1324
1325 const ast::Type * visit( const ast::TypeofType * node ) override final {
[1ae47de]1326 return visitType( node, new TypeofType{
[746ae82]1327 cv( node ),
1328 get<Expression>().accept1( node->expr ),
1329 (bool)node->kind
[1ae47de]1330 } );
[74dbbf6]1331 }
1332
1333 const ast::Type * visit( const ast::VarArgsType * node ) override final {
[1ae47de]1334 return visitType( node, new VarArgsType{ cv( node ) } );
[74dbbf6]1335 }
1336
1337 const ast::Type * visit( const ast::ZeroType * node ) override final {
[1ae47de]1338 return visitType( node, new ZeroType{ cv( node ) } );
[74dbbf6]1339 }
1340
1341 const ast::Type * visit( const ast::OneType * node ) override final {
[1ae47de]1342 return visitType( node, new OneType{ cv( node ) } );
[74dbbf6]1343 }
1344
[1ae47de]1345 const ast::Type * visit( const ast::GlobalScopeType * node ) override final {
1346 return visitType( node, new GlobalScopeType{} );
[74dbbf6]1347 }
1348
1349 const ast::Designation * visit( const ast::Designation * node ) override final {
[74ad8c0]1350 auto designation = new Designation( get<Expression>().acceptL( node->designators ) );
1351 designation->location = node->location;
1352 this->node = designation;
[74dbbf6]1353 return nullptr;
1354 }
1355
1356 const ast::Init * visit( const ast::SingleInit * node ) override final {
[74ad8c0]1357 auto init = new SingleInit(
1358 get<Expression>().accept1( node->value ),
1359 ast::MaybeConstruct == node->maybeConstructed
1360 );
1361 init->location = node->location;
1362 this->node = init;
[74dbbf6]1363 return nullptr;
1364 }
1365
1366 const ast::Init * visit( const ast::ListInit * node ) override final {
[74ad8c0]1367 auto init = new ListInit(
1368 get<Initializer>().acceptL( node->initializers ),
1369 get<Designation>().acceptL( node->designations ),
1370 ast::MaybeConstruct == node->maybeConstructed
1371 );
1372 init->location = node->location;
1373 this->node = init;
[74dbbf6]1374 return nullptr;
1375 }
1376
1377 const ast::Init * visit( const ast::ConstructorInit * node ) override final {
[74ad8c0]1378 auto init = new ConstructorInit(
1379 get<Statement>().accept1( node->ctor ),
1380 get<Statement>().accept1( node->dtor ),
1381 get<Initializer>().accept1( node->init )
1382 );
1383 init->location = node->location;
1384 this->node = init;
[74dbbf6]1385 return nullptr;
1386 }
1387
1388 const ast::Attribute * visit( const ast::Attribute * node ) override final {
[dd6d7c6]1389 auto attr = new Attribute(
1390 node->name,
[489bacf]1391 get<Expression>().acceptL(node->params)
[dd6d7c6]1392 );
1393 this->node = attr;
[74dbbf6]1394 return nullptr;
1395 }
1396
1397 const ast::TypeSubstitution * visit( const ast::TypeSubstitution * node ) override final {
[dd6d7c6]1398 // Handled by convertTypeSubstitution helper instead.
1399 // TypeSubstitution is not a node in the old model, so the conversion result wouldn't fit in this->node.
1400 assert( 0 );
[0b57626]1401 (void)node;
[74dbbf6]1402 return nullptr;
1403 }
[6d51bd7]1404};
1405
[8abee136]1406std::list< Declaration * > convert( const std::list< ast::ptr< ast::Decl > > && translationUnit ) {
[74dbbf6]1407 ConverterNewToOld c;
1408 std::list< Declaration * > decls;
1409 for(auto d : translationUnit) {
[675d816]1410 decls.emplace_back( c.decl( d ) );
[74dbbf6]1411 }
1412 return decls;
[6d51bd7]1413}
1414
1415//================================================================================================
1416
1417class ConverterOldToNew : public Visitor {
1418public:
1419 ast::Decl * decl() {
1420 return strict_dynamic_cast< ast::Decl * >( node );
1421 }
[546e712]1422
1423 ConverterOldToNew() = default;
1424 ConverterOldToNew(const ConverterOldToNew &) = delete;
1425 ConverterOldToNew(ConverterOldToNew &&) = delete;
[6d51bd7]1426private:
[d148778]1427 /// conversion output
[546e712]1428 ast::Node * node = nullptr;
[d148778]1429 /// cache of nodes that might be referenced by readonly<> for de-duplication
[954c954]1430 /// in case that some nodes are dropped by conversion (due to possible structural change)
1431 /// use smart pointers in cache value to prevent accidental invalidation.
1432 /// at conversion stage, all created nodes are guaranteed to be unique, therefore
1433 /// const_casting out of smart pointers is permitted.
1434 std::unordered_map< const BaseSyntaxNode *, ast::ptr<ast::Node> > cache = {};
[6d51bd7]1435
[6f8e87d]1436 // Local Utilities:
1437
1438 template<typename NewT, typename OldT>
1439 NewT * getAccept1( OldT old ) {
[d148778]1440 if ( ! old ) return nullptr;
[6f8e87d]1441 old->accept(*this);
[2c04369]1442 ast::Node * ret = node;
1443 node = nullptr;
1444 return strict_dynamic_cast< NewT * >( ret );
[6f8e87d]1445 }
1446
1447# define GET_ACCEPT_1(child, type) \
1448 getAccept1< ast::type, decltype( old->child ) >( old->child )
1449
1450 template<typename NewT, typename OldC>
[a62749f]1451 std::vector< ast::ptr<NewT> > getAcceptV( const OldC& old ) {
[6f8e87d]1452 std::vector< ast::ptr<NewT> > ret;
1453 ret.reserve( old.size() );
1454 for ( auto a : old ) {
1455 a->accept( *this );
1456 ret.emplace_back( strict_dynamic_cast< NewT * >(node) );
[2c04369]1457 node = nullptr;
[6f8e87d]1458 }
1459 return ret;
1460 }
1461
1462# define GET_ACCEPT_V(child, type) \
1463 getAcceptV< ast::type, decltype( old->child ) >( old->child )
[6355ba7]1464
[60aaa51d]1465 template<typename NewT, typename OldC>
[a62749f]1466 std::deque< ast::ptr<NewT> > getAcceptD( const OldC& old ) {
[60aaa51d]1467 std::deque< ast::ptr<NewT> > ret;
1468 for ( auto a : old ) {
1469 a->accept( *this );
1470 ret.emplace_back( strict_dynamic_cast< NewT * >(node) );
1471 node = nullptr;
1472 }
1473 return ret;
1474 }
1475
1476# define GET_ACCEPT_D(child, type) \
1477 getAcceptD< ast::type, decltype( old->child ) >( old->child )
[6f8e87d]1478
[a62749f]1479 ast::Label make_label(const Label* old) {
1480 CodeLocation const & location =
1481 ( old->labelled ) ? old->labelled->location : CodeLocation();
[6f8e87d]1482 return ast::Label(
[a62749f]1483 location,
[6f8e87d]1484 old->name,
1485 GET_ACCEPT_V(attributes, Attribute)
1486 );
1487 }
1488
[6d51bd7]1489 template<template <class...> class C>
1490 C<ast::Label> make_labels(C<Label> olds) {
1491 C<ast::Label> ret;
[6f8e87d]1492 for (auto oldn : olds) {
1493 ret.push_back( make_label( &oldn ) );
[6d51bd7]1494 }
1495 return ret;
1496 }
1497
[6f8e87d]1498# define GET_LABELS_V(labels) \
1499 to<std::vector>::from( make_labels( std::move( labels ) ) )
[0b57626]1500
[7870799]1501 static ast::CV::Qualifiers cv( const Type * ty ) { return { ty->tq.val }; }
[d148778]1502
[b869ec5]1503 /// returns true and sets `node` if in cache
[7870799]1504 bool inCache( const BaseSyntaxNode * old ) {
[d148778]1505 auto it = cache.find( old );
[b869ec5]1506 if ( it == cache.end() ) return false;
[954c954]1507 node = const_cast<ast::Node *>(it->second.get());
[b869ec5]1508 return true;
[d148778]1509 }
[6f8e87d]1510
1511 // Now all the visit functions:
1512
[7870799]1513 virtual void visit( const ObjectDecl * old ) override final {
[546e712]1514 auto&& type = GET_ACCEPT_1(type, Type);
1515 auto&& init = GET_ACCEPT_1(init, Init);
1516 auto&& bfwd = GET_ACCEPT_1(bitfieldWidth, Expr);
1517 auto&& attr = GET_ACCEPT_V(attributes, Attribute);
1518 if ( inCache( old ) ) {
1519 return;
1520 }
[6d51bd7]1521 auto decl = new ast::ObjectDecl(
1522 old->location,
1523 old->name,
[546e712]1524 type,
1525 init,
[6d51bd7]1526 { old->get_storageClasses().val },
1527 { old->linkage.val },
[546e712]1528 bfwd,
1529 std::move(attr),
[6d51bd7]1530 { old->get_funcSpec().val }
1531 );
[546e712]1532 cache.emplace(old, decl);
1533 assert(cache.find( old ) != cache.end());
[6d51bd7]1534 decl->scopeLevel = old->scopeLevel;
1535 decl->mangleName = old->mangleName;
1536 decl->isDeleted = old->isDeleted;
[e6faef4]1537 decl->asmName = GET_ACCEPT_1(asmName, Expr);
[6d51bd7]1538 decl->uniqueId = old->uniqueId;
1539 decl->extension = old->extension;
1540
1541 this->node = decl;
1542 }
1543
[7870799]1544 virtual void visit( const FunctionDecl * old ) override final {
[b869ec5]1545 if ( inCache( old ) ) return;
[954c954]1546 auto paramVars = GET_ACCEPT_V(type->parameters, DeclWithType);
1547 auto returnVars = GET_ACCEPT_V(type->returnVals, DeclWithType);
1548 auto forall = GET_ACCEPT_V(type->forall, TypeDecl);
1549
1550 // function type is now derived from parameter decls instead of storing them
[490fb92e]1551
1552 /*
[954c954]1553 auto ftype = new ast::FunctionType((ast::ArgumentFlag)old->type->isVarArgs, cv(old->type));
1554 ftype->params.reserve(paramVars.size());
1555 ftype->returns.reserve(returnVars.size());
1556
1557 for (auto & v: paramVars) {
1558 ftype->params.emplace_back(v->get_type());
1559 }
1560 for (auto & v: returnVars) {
1561 ftype->returns.emplace_back(v->get_type());
1562 }
1563 ftype->forall = std::move(forall);
[490fb92e]1564 */
1565
1566 // can function type have attributes? seems not to be the case.
1567 // visitType(old->type, ftype);
[954c954]1568
[9a0cd9c]1569 auto decl = new ast::FunctionDecl{
1570 old->location,
1571 old->name,
[954c954]1572 // GET_ACCEPT_1(type, FunctionType),
[490fb92e]1573 std::move(forall),
[954c954]1574 std::move(paramVars),
1575 std::move(returnVars),
[d88f8b3b]1576 {},
[9a0cd9c]1577 { old->storageClasses.val },
1578 { old->linkage.val },
1579 GET_ACCEPT_V(attributes, Attribute),
[490fb92e]1580 { old->get_funcSpec().val },
1581 old->type->isVarArgs
[9a0cd9c]1582 };
[954c954]1583
[490fb92e]1584 // decl->type = ftype;
[8abee136]1585 cache.emplace( old, decl );
[954c954]1586
[d76c588]1587 decl->withExprs = GET_ACCEPT_V(withExprs, Expr);
[d88f8b3b]1588 decl->stmts = GET_ACCEPT_1(statements, CompoundStmt);
[9a0cd9c]1589 decl->scopeLevel = old->scopeLevel;
1590 decl->mangleName = old->mangleName;
1591 decl->isDeleted = old->isDeleted;
[e6faef4]1592 decl->asmName = GET_ACCEPT_1(asmName, Expr);
[9a0cd9c]1593 decl->uniqueId = old->uniqueId;
1594 decl->extension = old->extension;
1595
1596 this->node = decl;
[157a816]1597
[0aedb01]1598 if ( Validate::dereferenceOperator == old ) {
[490fb92e]1599 ast::dereferenceOperator = decl;
[157a816]1600 }
[043a5b6]1601
1602 if ( Validate::dtorStructDestroy == old ) {
[490fb92e]1603 ast::dtorStructDestroy = decl;
[043a5b6]1604 }
[6d51bd7]1605 }
1606
[7870799]1607 virtual void visit( const StructDecl * old ) override final {
[b869ec5]1608 if ( inCache( old ) ) return;
[6d51bd7]1609 auto decl = new ast::StructDecl(
1610 old->location,
1611 old->name,
[312029a]1612 (ast::AggregateDecl::Aggregate)old->kind,
[d66e7b7]1613 GET_ACCEPT_V(attributes, Attribute),
[6d51bd7]1614 { old->linkage.val }
1615 );
[8abee136]1616 cache.emplace( old, decl );
[d66e7b7]1617 decl->parent = GET_ACCEPT_1(parent, AggregateDecl);
[6d51bd7]1618 decl->body = old->body;
[d66e7b7]1619 decl->params = GET_ACCEPT_V(parameters, TypeDecl);
1620 decl->members = GET_ACCEPT_V(members, Decl);
[6d51bd7]1621 decl->extension = old->extension;
1622 decl->uniqueId = old->uniqueId;
1623 decl->storage = { old->storageClasses.val };
1624
1625 this->node = decl;
[043a5b6]1626
1627 if ( Validate::dtorStruct == old ) {
[490fb92e]1628 ast::dtorStruct = decl;
[043a5b6]1629 }
[6d51bd7]1630 }
1631
[7870799]1632 virtual void visit( const UnionDecl * old ) override final {
[b869ec5]1633 if ( inCache( old ) ) return;
[6d51bd7]1634 auto decl = new ast::UnionDecl(
1635 old->location,
1636 old->name,
[d66e7b7]1637 GET_ACCEPT_V(attributes, Attribute),
[6d51bd7]1638 { old->linkage.val }
1639 );
[8abee136]1640 cache.emplace( old, decl );
[d66e7b7]1641 decl->parent = GET_ACCEPT_1(parent, AggregateDecl);
[6d51bd7]1642 decl->body = old->body;
[d66e7b7]1643 decl->params = GET_ACCEPT_V(parameters, TypeDecl);
1644 decl->members = GET_ACCEPT_V(members, Decl);
[6d51bd7]1645 decl->extension = old->extension;
1646 decl->uniqueId = old->uniqueId;
1647 decl->storage = { old->storageClasses.val };
1648
1649 this->node = decl;
1650 }
1651
[7870799]1652 virtual void visit( const EnumDecl * old ) override final {
[b869ec5]1653 if ( inCache( old ) ) return;
[157a816]1654 auto decl = new ast::EnumDecl(
[6d51bd7]1655 old->location,
1656 old->name,
[d66e7b7]1657 GET_ACCEPT_V(attributes, Attribute),
[6d51bd7]1658 { old->linkage.val }
1659 );
[8abee136]1660 cache.emplace( old, decl );
[d66e7b7]1661 decl->parent = GET_ACCEPT_1(parent, AggregateDecl);
[6d51bd7]1662 decl->body = old->body;
[d66e7b7]1663 decl->params = GET_ACCEPT_V(parameters, TypeDecl);
1664 decl->members = GET_ACCEPT_V(members, Decl);
[6d51bd7]1665 decl->extension = old->extension;
1666 decl->uniqueId = old->uniqueId;
1667 decl->storage = { old->storageClasses.val };
1668
1669 this->node = decl;
1670 }
1671
[7870799]1672 virtual void visit( const TraitDecl * old ) override final {
[b869ec5]1673 if ( inCache( old ) ) return;
[157a816]1674 auto decl = new ast::TraitDecl(
[6d51bd7]1675 old->location,
1676 old->name,
[d66e7b7]1677 GET_ACCEPT_V(attributes, Attribute),
[6d51bd7]1678 { old->linkage.val }
1679 );
[8abee136]1680 cache.emplace( old, decl );
[d66e7b7]1681 decl->parent = GET_ACCEPT_1(parent, AggregateDecl);
[6d51bd7]1682 decl->body = old->body;
[d66e7b7]1683 decl->params = GET_ACCEPT_V(parameters, TypeDecl);
1684 decl->members = GET_ACCEPT_V(members, Decl);
[6d51bd7]1685 decl->extension = old->extension;
1686 decl->uniqueId = old->uniqueId;
1687 decl->storage = { old->storageClasses.val };
1688
1689 this->node = decl;
1690 }
1691
[7870799]1692 virtual void visit( const TypeDecl * old ) override final {
[0b57626]1693 if ( inCache( old ) ) return;
[9a0cd9c]1694 auto decl = new ast::TypeDecl{
1695 old->location,
1696 old->name,
1697 { old->storageClasses.val },
1698 GET_ACCEPT_1(base, Type),
[07de76b]1699 (ast::TypeDecl::Kind)(unsigned)old->kind,
[9a0cd9c]1700 old->sized,
1701 GET_ACCEPT_1(init, Type)
1702 };
[8abee136]1703 cache.emplace( old, decl );
[9a0cd9c]1704 decl->assertions = GET_ACCEPT_V(assertions, DeclWithType);
1705 decl->params = GET_ACCEPT_V(parameters, TypeDecl);
1706 decl->extension = old->extension;
1707 decl->uniqueId = old->uniqueId;
1708
1709 this->node = decl;
[6d51bd7]1710 }
1711
[7870799]1712 virtual void visit( const TypedefDecl * old ) override final {
[6d51bd7]1713 auto decl = new ast::TypedefDecl(
1714 old->location,
1715 old->name,
1716 { old->storageClasses.val },
[d66e7b7]1717 GET_ACCEPT_1(base, Type),
[6d51bd7]1718 { old->linkage.val }
1719 );
[d66e7b7]1720 decl->assertions = GET_ACCEPT_V(assertions, DeclWithType);
1721 decl->params = GET_ACCEPT_V(parameters, TypeDecl);
[6d51bd7]1722 decl->extension = old->extension;
1723 decl->uniqueId = old->uniqueId;
1724 decl->storage = { old->storageClasses.val };
1725
1726 this->node = decl;
1727 }
1728
[7870799]1729 virtual void visit( const AsmDecl * old ) override final {
[9a0cd9c]1730 auto decl = new ast::AsmDecl{
[0b57626]1731 old->location,
[9a0cd9c]1732 GET_ACCEPT_1(stmt, AsmStmt)
1733 };
1734 decl->extension = old->extension;
1735 decl->uniqueId = old->uniqueId;
1736 decl->storage = { old->storageClasses.val };
[6d51bd7]1737
[9a0cd9c]1738 this->node = decl;
[6d51bd7]1739 }
1740
[7870799]1741 virtual void visit( const StaticAssertDecl * old ) override final {
[9a0cd9c]1742 auto decl = new ast::StaticAssertDecl{
1743 old->location,
1744 GET_ACCEPT_1(condition, Expr),
1745 GET_ACCEPT_1(message, ConstantExpr)
1746 };
1747 decl->extension = old->extension;
1748 decl->uniqueId = old->uniqueId;
1749 decl->storage = { old->storageClasses.val };
[6d51bd7]1750
[9a0cd9c]1751 this->node = decl;
[6d51bd7]1752 }
1753
[7870799]1754 virtual void visit( const CompoundStmt * old ) override final {
[4073b16]1755 if ( inCache( old ) ) return;
[6d51bd7]1756 auto stmt = new ast::CompoundStmt(
1757 old->location,
[d66e7b7]1758 to<std::list>::from( GET_ACCEPT_V(kids, Stmt) ),
1759 GET_LABELS_V(old->labels)
[6d51bd7]1760 );
1761
1762 this->node = stmt;
[4073b16]1763 cache.emplace( old, this->node );
[6d51bd7]1764 }
1765
[7870799]1766 virtual void visit( const ExprStmt * old ) override final {
[4073b16]1767 if ( inCache( old ) ) return;
[6f8e87d]1768 this->node = new ast::ExprStmt(
[6d51bd7]1769 old->location,
[6f8e87d]1770 GET_ACCEPT_1(expr, Expr),
1771 GET_LABELS_V(old->labels)
[6d51bd7]1772 );
[4073b16]1773 cache.emplace( old, this->node );
[6d51bd7]1774 }
1775
[7870799]1776 virtual void visit( const AsmStmt * old ) override final {
[4073b16]1777 if ( inCache( old ) ) return;
[6f8e87d]1778 this->node = new ast::AsmStmt(
1779 old->location,
1780 old->voltile,
1781 GET_ACCEPT_1(instruction, Expr),
1782 GET_ACCEPT_V(output, Expr),
1783 GET_ACCEPT_V(input, Expr),
1784 GET_ACCEPT_V(clobber, ConstantExpr),
1785 GET_LABELS_V(old->gotolabels),
1786 GET_LABELS_V(old->labels)
1787 );
[4073b16]1788 cache.emplace( old, this->node );
[6d51bd7]1789 }
1790
[7870799]1791 virtual void visit( const DirectiveStmt * old ) override final {
[4073b16]1792 if ( inCache( old ) ) return;
[6f8e87d]1793 this->node = new ast::DirectiveStmt(
1794 old->location,
1795 old->directive,
1796 GET_LABELS_V(old->labels)
1797 );
[4073b16]1798 cache.emplace( old, this->node );
[6d51bd7]1799 }
1800
[7870799]1801 virtual void visit( const IfStmt * old ) override final {
[4073b16]1802 if ( inCache( old ) ) return;
[6f8e87d]1803 this->node = new ast::IfStmt(
1804 old->location,
1805 GET_ACCEPT_1(condition, Expr),
1806 GET_ACCEPT_1(thenPart, Stmt),
1807 GET_ACCEPT_1(elsePart, Stmt),
1808 GET_ACCEPT_V(initialization, Stmt),
1809 GET_LABELS_V(old->labels)
1810 );
[4073b16]1811 cache.emplace( old, this->node );
[6d51bd7]1812 }
1813
[7870799]1814 virtual void visit( const SwitchStmt * old ) override final {
[4073b16]1815 if ( inCache( old ) ) return;
[6f8e87d]1816 this->node = new ast::SwitchStmt(
1817 old->location,
1818 GET_ACCEPT_1(condition, Expr),
1819 GET_ACCEPT_V(statements, Stmt),
1820 GET_LABELS_V(old->labels)
1821 );
[4073b16]1822 cache.emplace( old, this->node );
[6d51bd7]1823 }
1824
[7870799]1825 virtual void visit( const CaseStmt * old ) override final {
[4073b16]1826 if ( inCache( old ) ) return;
[6f8e87d]1827 this->node = new ast::CaseStmt(
1828 old->location,
1829 GET_ACCEPT_1(condition, Expr),
1830 GET_ACCEPT_V(stmts, Stmt),
1831 GET_LABELS_V(old->labels)
1832 );
[4073b16]1833 cache.emplace( old, this->node );
[6d51bd7]1834 }
1835
[7870799]1836 virtual void visit( const WhileStmt * old ) override final {
[4073b16]1837 if ( inCache( old ) ) return;
[6f8e87d]1838 this->node = new ast::WhileStmt(
1839 old->location,
1840 GET_ACCEPT_1(condition, Expr),
1841 GET_ACCEPT_1(body, Stmt),
1842 GET_ACCEPT_V(initialization, Stmt),
1843 old->isDoWhile,
1844 GET_LABELS_V(old->labels)
1845 );
[4073b16]1846 cache.emplace( old, this->node );
[6d51bd7]1847 }
1848
[7870799]1849 virtual void visit( const ForStmt * old ) override final {
[4073b16]1850 if ( inCache( old ) ) return;
[6f8e87d]1851 this->node = new ast::ForStmt(
1852 old->location,
1853 GET_ACCEPT_V(initialization, Stmt),
1854 GET_ACCEPT_1(condition, Expr),
1855 GET_ACCEPT_1(increment, Expr),
1856 GET_ACCEPT_1(body, Stmt),
1857 GET_LABELS_V(old->labels)
1858 );
[4073b16]1859 cache.emplace( old, this->node );
[6d51bd7]1860 }
1861
[7870799]1862 virtual void visit( const BranchStmt * old ) override final {
[4073b16]1863 if ( inCache( old ) ) return;
[6f8e87d]1864 if (old->computedTarget) {
1865 this->node = new ast::BranchStmt(
1866 old->location,
1867 GET_ACCEPT_1(computedTarget, Expr),
1868 GET_LABELS_V(old->labels)
1869 );
1870 } else {
1871 ast::BranchStmt::Kind kind;
1872 switch (old->type) {
1873 #define CASE(n) \
1874 case BranchStmt::n: \
1875 kind = ast::BranchStmt::n; \
1876 break
1877 CASE(Goto);
1878 CASE(Break);
1879 CASE(Continue);
1880 CASE(FallThrough);
1881 CASE(FallThroughDefault);
1882 #undef CASE
[d66e7b7]1883 default:
1884 assertf(false, "Invalid BranchStmt::Type %d\n", old->type);
[6f8e87d]1885 }
1886
1887 auto stmt = new ast::BranchStmt(
1888 old->location,
1889 kind,
[a62749f]1890 make_label(&old->originalTarget),
[6f8e87d]1891 GET_LABELS_V(old->labels)
1892 );
1893 stmt->target = make_label(&old->target);
1894 this->node = stmt;
1895 }
[4073b16]1896 cache.emplace( old, this->node );
[6d51bd7]1897 }
1898
[7870799]1899 virtual void visit( const ReturnStmt * old ) override final {
[4073b16]1900 if ( inCache( old ) ) return;
[6f8e87d]1901 this->node = new ast::ReturnStmt(
1902 old->location,
1903 GET_ACCEPT_1(expr, Expr),
1904 GET_LABELS_V(old->labels)
1905 );
[4073b16]1906 cache.emplace( old, this->node );
[6d51bd7]1907 }
1908
[7870799]1909 virtual void visit( const ThrowStmt * old ) override final {
[4073b16]1910 if ( inCache( old ) ) return;
[6f4b7f2]1911 ast::ExceptionKind kind;
[6f8e87d]1912 switch (old->kind) {
1913 case ThrowStmt::Terminate:
[6f4b7f2]1914 kind = ast::ExceptionKind::Terminate;
[6f8e87d]1915 break;
1916 case ThrowStmt::Resume:
[6f4b7f2]1917 kind = ast::ExceptionKind::Resume;
[6f8e87d]1918 break;
[d66e7b7]1919 default:
1920 assertf(false, "Invalid ThrowStmt::Kind %d\n", old->kind);
[6f8e87d]1921 }
[6d51bd7]1922
[6f8e87d]1923 this->node = new ast::ThrowStmt(
1924 old->location,
1925 kind,
1926 GET_ACCEPT_1(expr, Expr),
1927 GET_ACCEPT_1(target, Expr),
1928 GET_LABELS_V(old->labels)
1929 );
[4073b16]1930 cache.emplace( old, this->node );
[6d51bd7]1931 }
1932
[7870799]1933 virtual void visit( const TryStmt * old ) override final {
[4073b16]1934 if ( inCache( old ) ) return;
[6f8e87d]1935 this->node = new ast::TryStmt(
1936 old->location,
1937 GET_ACCEPT_1(block, CompoundStmt),
1938 GET_ACCEPT_V(handlers, CatchStmt),
1939 GET_ACCEPT_1(finallyBlock, FinallyStmt),
1940 GET_LABELS_V(old->labels)
1941 );
[4073b16]1942 cache.emplace( old, this->node );
[6d51bd7]1943 }
1944
[7870799]1945 virtual void visit( const CatchStmt * old ) override final {
[4073b16]1946 if ( inCache( old ) ) return;
[6f4b7f2]1947 ast::ExceptionKind kind;
[6f8e87d]1948 switch (old->kind) {
1949 case CatchStmt::Terminate:
[6f4b7f2]1950 kind = ast::ExceptionKind::Terminate;
[6f8e87d]1951 break;
1952 case CatchStmt::Resume:
[6f4b7f2]1953 kind = ast::ExceptionKind::Resume;
[6f8e87d]1954 break;
[d66e7b7]1955 default:
1956 assertf(false, "Invalid CatchStmt::Kind %d\n", old->kind);
[6f8e87d]1957 }
[6d51bd7]1958
[6f8e87d]1959 this->node = new ast::CatchStmt(
1960 old->location,
1961 kind,
1962 GET_ACCEPT_1(decl, Decl),
1963 GET_ACCEPT_1(cond, Expr),
1964 GET_ACCEPT_1(body, Stmt),
1965 GET_LABELS_V(old->labels)
1966 );
[4073b16]1967 cache.emplace( old, this->node );
[6d51bd7]1968 }
1969
[7870799]1970 virtual void visit( const FinallyStmt * old ) override final {
[4073b16]1971 if ( inCache( old ) ) return;
[6f8e87d]1972 this->node = new ast::FinallyStmt(
1973 old->location,
1974 GET_ACCEPT_1(block, CompoundStmt),
1975 GET_LABELS_V(old->labels)
1976 );
[4073b16]1977 cache.emplace( old, this->node );
[6d51bd7]1978 }
1979
[37cdd97]1980 virtual void visit( const SuspendStmt * old ) override final {
1981 if ( inCache( old ) ) return;
1982 ast::SuspendStmt::Type type;
1983 switch (old->type) {
1984 case SuspendStmt::Coroutine: type = ast::SuspendStmt::Coroutine; break;
1985 case SuspendStmt::Generator: type = ast::SuspendStmt::Generator; break;
1986 case SuspendStmt::None : type = ast::SuspendStmt::None ; break;
1987 default: abort();
1988 }
1989 this->node = new ast::SuspendStmt(
1990 old->location,
1991 GET_ACCEPT_1(then , CompoundStmt),
1992 type,
1993 GET_LABELS_V(old->labels)
1994 );
[4073b16]1995 cache.emplace( old, this->node );
[6d51bd7]1996 }
1997
[7870799]1998 virtual void visit( const WaitForStmt * old ) override final {
[4073b16]1999 if ( inCache( old ) ) return;
[6f8e87d]2000 ast::WaitForStmt * stmt = new ast::WaitForStmt(
2001 old->location,
2002 GET_LABELS_V(old->labels)
2003 );
[6d51bd7]2004
[6f8e87d]2005 stmt->clauses.reserve( old->clauses.size() );
2006 for (size_t i = 0 ; i < old->clauses.size() ; ++i) {
2007 stmt->clauses.push_back({
2008 ast::WaitForStmt::Target{
2009 GET_ACCEPT_1(clauses[i].target.function, Expr),
2010 GET_ACCEPT_V(clauses[i].target.arguments, Expr)
2011 },
2012 GET_ACCEPT_1(clauses[i].statement, Stmt),
2013 GET_ACCEPT_1(clauses[i].condition, Expr)
2014 });
2015 }
2016 stmt->timeout = {
2017 GET_ACCEPT_1(timeout.time, Expr),
2018 GET_ACCEPT_1(timeout.statement, Stmt),
2019 GET_ACCEPT_1(timeout.condition, Expr),
2020 };
2021 stmt->orElse = {
[1e5dedc4]2022 GET_ACCEPT_1(orelse.statement, Stmt),
2023 GET_ACCEPT_1(orelse.condition, Expr),
[6f8e87d]2024 };
[6d51bd7]2025
[6f8e87d]2026 this->node = stmt;
[4073b16]2027 cache.emplace( old, this->node );
[6f8e87d]2028 }
[6d51bd7]2029
[7870799]2030 virtual void visit( const WithStmt * old ) override final {
[4073b16]2031 if ( inCache( old ) ) return;
[6f8e87d]2032 this->node = new ast::WithStmt(
2033 old->location,
2034 GET_ACCEPT_V(exprs, Expr),
[e67991f]2035 GET_ACCEPT_1(stmt, Stmt)
[6f8e87d]2036 );
[4073b16]2037 cache.emplace( old, this->node );
[6d51bd7]2038 }
2039
[7870799]2040 virtual void visit( const NullStmt * old ) override final {
[4073b16]2041 if ( inCache( old ) ) return;
[6f8e87d]2042 this->node = new ast::NullStmt(
[6d51bd7]2043 old->location,
[6f8e87d]2044 GET_LABELS_V(old->labels)
[6d51bd7]2045 );
[4073b16]2046 cache.emplace( old, this->node );
[6d51bd7]2047 }
2048
[7870799]2049 virtual void visit( const DeclStmt * old ) override final {
[4073b16]2050 if ( inCache( old ) ) return;
[6f8e87d]2051 this->node = new ast::DeclStmt(
2052 old->location,
2053 GET_ACCEPT_1(decl, Decl),
2054 GET_LABELS_V(old->labels)
2055 );
[4073b16]2056 cache.emplace( old, this->node );
[6d51bd7]2057 }
2058
[7870799]2059 virtual void visit( const ImplicitCtorDtorStmt * old ) override final {
[4073b16]2060 if ( inCache( old ) ) return;
[f685679]2061 auto stmt = new ast::ImplicitCtorDtorStmt(
[6f8e87d]2062 old->location,
[f685679]2063 nullptr,
[6f8e87d]2064 GET_LABELS_V(old->labels)
2065 );
[2c04369]2066 cache.emplace( old, stmt );
[f685679]2067 stmt->callStmt = GET_ACCEPT_1(callStmt, Stmt);
[2c04369]2068 this->node = stmt;
[6d51bd7]2069 }
2070
[172d9342]2071 ast::TypeSubstitution * convertTypeSubstitution(const TypeSubstitution * old) {
2072
[8abee136]2073 if (!old) return nullptr;
2074
[172d9342]2075 ast::TypeSubstitution *rslt = new ast::TypeSubstitution();
2076
2077 for (decltype(old->begin()) old_i = old->begin(); old_i != old->end(); old_i++) {
2078 rslt->add( old_i->first,
2079 getAccept1<ast::Type>(old_i->second) );
2080 }
[6d51bd7]2081
[172d9342]2082 for (decltype(old->beginVar()) old_i = old->beginVar(); old_i != old->endVar(); old_i++) {
2083 rslt->addVar( old_i->first,
2084 getAccept1<ast::Expr>(old_i->second) );
2085 }
[19e567dd]2086
2087 return rslt;
[6d51bd7]2088 }
2089
[e0016a5]2090 void convertInferUnion(ast::Expr::InferUnion &newInferred,
[19e567dd]2091 const std::map<UniqueId,ParamEntry> &oldInferParams,
2092 const std::vector<UniqueId> &oldResnSlots) {
2093
2094 assert( oldInferParams.empty() || oldResnSlots.empty() );
[07d867b]2095 // assert( newInferred.mode == ast::Expr::InferUnion::Empty );
[19e567dd]2096
2097 if ( !oldInferParams.empty() ) {
2098 ast::InferredParams &tgt = newInferred.inferParams();
[8b34df0]2099 for (auto & old : oldInferParams) {
[19e567dd]2100 tgt[old.first] = ast::ParamEntry(
2101 old.second.decl,
[aaeacf4]2102 getAccept1<ast::Decl>(old.second.declptr),
[19e567dd]2103 getAccept1<ast::Type>(old.second.actualType),
2104 getAccept1<ast::Type>(old.second.formalType),
2105 getAccept1<ast::Expr>(old.second.expr)
2106 );
2107 }
2108 } else if ( !oldResnSlots.empty() ) {
2109 ast::ResnSlots &tgt = newInferred.resnSlots();
2110 for (auto old : oldResnSlots) {
2111 tgt.push_back(old);
2112 }
2113 }
[172d9342]2114 }
2115
[7870799]2116 ast::Expr * visitBaseExpr_SkipResultType( const Expression * old, ast::Expr * nw) {
[6d51bd7]2117
[172d9342]2118 nw->env = convertTypeSubstitution(old->env);
2119
2120 nw->extension = old->extension;
2121 convertInferUnion(nw->inferred, old->inferParams, old->resnSlots);
2122
2123 return nw;
2124 }
[6d51bd7]2125
[7870799]2126 ast::Expr * visitBaseExpr( const Expression * old, ast::Expr * nw) {
[20de6fb]2127
2128 nw->result = GET_ACCEPT_1(result, Type);
2129 return visitBaseExpr_SkipResultType(old, nw);;
2130 }
2131
[7870799]2132 virtual void visit( const ApplicationExpr * old ) override final {
[19e567dd]2133 this->node = visitBaseExpr( old,
2134 new ast::ApplicationExpr(
2135 old->location,
2136 GET_ACCEPT_1(function, Expr),
2137 GET_ACCEPT_V(args, Expr)
2138 )
2139 );
[6d51bd7]2140 }
2141
[7870799]2142 virtual void visit( const UntypedExpr * old ) override final {
[19e567dd]2143 this->node = visitBaseExpr( old,
2144 new ast::UntypedExpr(
2145 old->location,
2146 GET_ACCEPT_1(function, Expr),
2147 GET_ACCEPT_V(args, Expr)
2148 )
2149 );
[172d9342]2150 }
[6d51bd7]2151
[7870799]2152 virtual void visit( const NameExpr * old ) override final {
[172d9342]2153 this->node = visitBaseExpr( old,
2154 new ast::NameExpr(
2155 old->location,
2156 old->get_name()
2157 )
2158 );
[6d51bd7]2159 }
2160
[7870799]2161 virtual void visit( const CastExpr * old ) override final {
[19e567dd]2162 this->node = visitBaseExpr( old,
2163 new ast::CastExpr(
2164 old->location,
[28c89f4]2165 GET_ACCEPT_1(arg, Expr),
[19e567dd]2166 old->isGenerated ? ast::GeneratedCast : ast::ExplicitCast
2167 )
2168 );
[6d51bd7]2169 }
2170
[312029a]2171 virtual void visit( const KeywordCastExpr * old ) override final {
2172 ast::AggregateDecl::Aggregate castTarget = (ast::AggregateDecl::Aggregate)old->target;
2173 assert( ast::AggregateDecl::Generator <= castTarget && castTarget <= ast::AggregateDecl::Thread );
[28c89f4]2174 this->node = visitBaseExpr( old,
2175 new ast::KeywordCastExpr(
2176 old->location,
2177 GET_ACCEPT_1(arg, Expr),
[4ef08f7]2178 castTarget,
2179 {old->concrete_target.field, old->concrete_target.getter}
[28c89f4]2180 )
2181 );
[6d51bd7]2182 }
2183
[7870799]2184 virtual void visit( const VirtualCastExpr * old ) override final {
[20de6fb]2185 this->node = visitBaseExpr_SkipResultType( old,
[28c89f4]2186 new ast::VirtualCastExpr(
2187 old->location,
2188 GET_ACCEPT_1(arg, Expr),
[20de6fb]2189 GET_ACCEPT_1(result, Type)
[28c89f4]2190 )
2191 );
[6d51bd7]2192 }
2193
[7870799]2194 virtual void visit( const AddressExpr * old ) override final {
[28c89f4]2195 this->node = visitBaseExpr( old,
2196 new ast::AddressExpr(
2197 old->location,
2198 GET_ACCEPT_1(arg, Expr)
2199 )
2200 );
[6d51bd7]2201 }
2202
[7870799]2203 virtual void visit( const LabelAddressExpr * old ) override final {
[28c89f4]2204 this->node = visitBaseExpr( old,
2205 new ast::LabelAddressExpr(
2206 old->location,
2207 make_label(&old->arg)
2208 )
2209 );
[6d51bd7]2210 }
2211
[7870799]2212 virtual void visit( const UntypedMemberExpr * old ) override final {
[28c89f4]2213 this->node = visitBaseExpr( old,
2214 new ast::UntypedMemberExpr(
2215 old->location,
2216 GET_ACCEPT_1(member, Expr),
2217 GET_ACCEPT_1(aggregate, Expr)
2218 )
2219 );
[6d51bd7]2220 }
2221
[7870799]2222 virtual void visit( const MemberExpr * old ) override final {
[28c89f4]2223 this->node = visitBaseExpr( old,
2224 new ast::MemberExpr(
2225 old->location,
[2a54479]2226 GET_ACCEPT_1(member, DeclWithType),
[ae265b55]2227 GET_ACCEPT_1(aggregate, Expr),
2228 ast::MemberExpr::NoOpConstructionChosen
[28c89f4]2229 )
2230 );
[6d51bd7]2231 }
2232
[7870799]2233 virtual void visit( const VariableExpr * old ) override final {
[546e712]2234 auto expr = new ast::VariableExpr(
2235 old->location
2236 );
2237
2238 expr->var = GET_ACCEPT_1(var, DeclWithType);
[6896548]2239 visitBaseExpr( old, expr );
[6d51bd7]2240
[546e712]2241 this->node = expr;
[6d51bd7]2242 }
2243
[7870799]2244 virtual void visit( const ConstantExpr * old ) override final {
[c36298d]2245 ast::ConstantExpr *rslt = new ast::ConstantExpr(
2246 old->location,
2247 GET_ACCEPT_1(result, Type),
[7870799]2248 old->constant.rep,
[c36298d]2249 old->constant.ival
2250 );
[7870799]2251 rslt->underlyer = getAccept1< ast::Type, Type* >( old->constant.type );
[28c89f4]2252 this->node = visitBaseExpr( old, rslt );
2253 }
2254
[7870799]2255 virtual void visit( const SizeofExpr * old ) override final {
[28c89f4]2256 assert (old->expr || old->type);
2257 assert (! (old->expr && old->type));
2258 ast::SizeofExpr *rslt;
2259 if (old->expr) {
2260 assert(!old->isType);
2261 rslt = new ast::SizeofExpr(
[0b57626]2262 old->location,
[28c89f4]2263 GET_ACCEPT_1(expr, Expr)
2264 );
2265 }
2266 if (old->type) {
2267 assert(old->isType);
2268 rslt = new ast::SizeofExpr(
[0b57626]2269 old->location,
[28c89f4]2270 GET_ACCEPT_1(type, Type)
2271 );
2272 }
2273 this->node = visitBaseExpr( old, rslt );
2274 }
2275
[7870799]2276 virtual void visit( const AlignofExpr * old ) override final {
[28c89f4]2277 assert (old->expr || old->type);
2278 assert (! (old->expr && old->type));
2279 ast::AlignofExpr *rslt;
2280 if (old->expr) {
2281 assert(!old->isType);
2282 rslt = new ast::AlignofExpr(
[0b57626]2283 old->location,
[28c89f4]2284 GET_ACCEPT_1(expr, Expr)
2285 );
2286 }
2287 if (old->type) {
2288 assert(old->isType);
2289 rslt = new ast::AlignofExpr(
[0b57626]2290 old->location,
[28c89f4]2291 GET_ACCEPT_1(type, Type)
2292 );
2293 }
2294 this->node = visitBaseExpr( old, rslt );
[6d51bd7]2295 }
2296
[7870799]2297 virtual void visit( const UntypedOffsetofExpr * old ) override final {
[28c89f4]2298 this->node = visitBaseExpr( old,
2299 new ast::UntypedOffsetofExpr(
2300 old->location,
2301 GET_ACCEPT_1(type, Type),
2302 old->member
2303 )
2304 );
[6d51bd7]2305 }
2306
[7870799]2307 virtual void visit( const OffsetofExpr * old ) override final {
[28c89f4]2308 this->node = visitBaseExpr( old,
2309 new ast::OffsetofExpr(
2310 old->location,
2311 GET_ACCEPT_1(type, Type),
[2a54479]2312 GET_ACCEPT_1(member, DeclWithType)
[28c89f4]2313 )
2314 );
[6d51bd7]2315 }
2316
[7870799]2317 virtual void visit( const OffsetPackExpr * old ) override final {
[28c89f4]2318 this->node = visitBaseExpr( old,
2319 new ast::OffsetPackExpr(
2320 old->location,
2321 GET_ACCEPT_1(type, StructInstType)
2322 )
2323 );
[6d51bd7]2324 }
2325
[7870799]2326 virtual void visit( const LogicalExpr * old ) override final {
[28c89f4]2327 this->node = visitBaseExpr( old,
2328 new ast::LogicalExpr(
2329 old->location,
2330 GET_ACCEPT_1(arg1, Expr),
2331 GET_ACCEPT_1(arg2, Expr),
[0b57626]2332 old->get_isAnd() ?
[28c89f4]2333 ast::LogicalFlag::AndExpr :
2334 ast::LogicalFlag::OrExpr
2335 )
2336 );
[6d51bd7]2337 }
2338
[7870799]2339 virtual void visit( const ConditionalExpr * old ) override final {
[28c89f4]2340 this->node = visitBaseExpr( old,
2341 new ast::ConditionalExpr(
2342 old->location,
2343 GET_ACCEPT_1(arg1, Expr),
2344 GET_ACCEPT_1(arg2, Expr),
2345 GET_ACCEPT_1(arg3, Expr)
2346 )
2347 );
2348 }
[6d51bd7]2349
[7870799]2350 virtual void visit( const CommaExpr * old ) override final {
[28c89f4]2351 this->node = visitBaseExpr( old,
2352 new ast::CommaExpr(
2353 old->location,
2354 GET_ACCEPT_1(arg1, Expr),
2355 GET_ACCEPT_1(arg2, Expr)
2356 )
2357 );
[6d51bd7]2358 }
2359
[7870799]2360 virtual void visit( const TypeExpr * old ) override final {
[20de6fb]2361 this->node = visitBaseExpr( old,
2362 new ast::TypeExpr(
2363 old->location,
2364 GET_ACCEPT_1(type, Type)
2365 )
2366 );
[6d51bd7]2367 }
2368
[7870799]2369 virtual void visit( const AsmExpr * old ) override final {
[20de6fb]2370 this->node = visitBaseExpr( old,
2371 new ast::AsmExpr(
2372 old->location,
[665f432]2373 old->inout,
[20de6fb]2374 GET_ACCEPT_1(constraint, Expr),
2375 GET_ACCEPT_1(operand, Expr)
2376 )
2377 );
[6d51bd7]2378 }
2379
[7870799]2380 virtual void visit( const ImplicitCopyCtorExpr * old ) override final {
[20de6fb]2381 auto rslt = new ast::ImplicitCopyCtorExpr(
2382 old->location,
2383 GET_ACCEPT_1(callExpr, ApplicationExpr)
2384 );
[6d51bd7]2385
[20de6fb]2386 this->node = visitBaseExpr( old, rslt );
[6d51bd7]2387 }
2388
[7870799]2389 virtual void visit( const ConstructorExpr * old ) override final {
[20de6fb]2390 this->node = visitBaseExpr( old,
2391 new ast::ConstructorExpr(
2392 old->location,
2393 GET_ACCEPT_1(callExpr, Expr)
2394 )
2395 );
[6d51bd7]2396 }
2397
[7870799]2398 virtual void visit( const CompoundLiteralExpr * old ) override final {
[20de6fb]2399 this->node = visitBaseExpr_SkipResultType( old,
2400 new ast::CompoundLiteralExpr(
2401 old->location,
2402 GET_ACCEPT_1(result, Type),
2403 GET_ACCEPT_1(initializer, Init)
2404 )
2405 );
[6d51bd7]2406 }
2407
[7870799]2408 virtual void visit( const RangeExpr * old ) override final {
[20de6fb]2409 this->node = visitBaseExpr( old,
2410 new ast::RangeExpr(
2411 old->location,
2412 GET_ACCEPT_1(low, Expr),
2413 GET_ACCEPT_1(high, Expr)
2414 )
2415 );
[6d51bd7]2416 }
2417
[7870799]2418 virtual void visit( const UntypedTupleExpr * old ) override final {
[20de6fb]2419 this->node = visitBaseExpr( old,
2420 new ast::UntypedTupleExpr(
2421 old->location,
2422 GET_ACCEPT_V(exprs, Expr)
2423 )
2424 );
[6d51bd7]2425 }
2426
[7870799]2427 virtual void visit( const TupleExpr * old ) override final {
[20de6fb]2428 this->node = visitBaseExpr( old,
2429 new ast::TupleExpr(
2430 old->location,
2431 GET_ACCEPT_V(exprs, Expr)
2432 )
2433 );
[6d51bd7]2434 }
2435
[7870799]2436 virtual void visit( const TupleIndexExpr * old ) override final {
[20de6fb]2437 this->node = visitBaseExpr( old,
2438 new ast::TupleIndexExpr(
2439 old->location,
2440 GET_ACCEPT_1(tuple, Expr),
2441 old->index
2442 )
2443 );
[6d51bd7]2444 }
2445
[7870799]2446 virtual void visit( const TupleAssignExpr * old ) override final {
[20de6fb]2447 this->node = visitBaseExpr_SkipResultType( old,
2448 new ast::TupleAssignExpr(
2449 old->location,
2450 GET_ACCEPT_1(result, Type),
2451 GET_ACCEPT_1(stmtExpr, StmtExpr)
2452 )
2453 );
[6d51bd7]2454 }
2455
[7870799]2456 virtual void visit( const StmtExpr * old ) override final {
[20de6fb]2457 auto rslt = new ast::StmtExpr(
2458 old->location,
2459 GET_ACCEPT_1(statements, CompoundStmt)
2460 );
2461 rslt->returnDecls = GET_ACCEPT_V(returnDecls, ObjectDecl);
2462 rslt->dtors = GET_ACCEPT_V(dtors , Expr);
[6d51bd7]2463
[20de6fb]2464 this->node = visitBaseExpr_SkipResultType( old, rslt );
[6d51bd7]2465 }
2466
[7870799]2467 virtual void visit( const UniqueExpr * old ) override final {
[20de6fb]2468 auto rslt = new ast::UniqueExpr(
2469 old->location,
[a2a85658]2470 GET_ACCEPT_1(expr, Expr),
2471 old->get_id()
[20de6fb]2472 );
2473 rslt->object = GET_ACCEPT_1(object, ObjectDecl);
2474 rslt->var = GET_ACCEPT_1(var , VariableExpr);
[6d51bd7]2475
[20de6fb]2476 this->node = visitBaseExpr( old, rslt );
[6d51bd7]2477 }
2478
[7870799]2479 virtual void visit( const UntypedInitExpr * old ) override final {
[60aaa51d]2480 std::deque<ast::InitAlternative> initAlts;
[20de6fb]2481 for (auto ia : old->initAlts) {
2482 initAlts.push_back(ast::InitAlternative(
2483 getAccept1< ast::Type, Type * >( ia.type ),
2484 getAccept1< ast::Designation, Designation * >( ia.designation )
2485 ));
2486 }
2487 this->node = visitBaseExpr( old,
2488 new ast::UntypedInitExpr(
2489 old->location,
2490 GET_ACCEPT_1(expr, Expr),
2491 std::move(initAlts)
2492 )
2493 );
[6d51bd7]2494 }
2495
[7870799]2496 virtual void visit( const InitExpr * old ) override final {
[20de6fb]2497 this->node = visitBaseExpr( old,
2498 new ast::InitExpr(
2499 old->location,
2500 GET_ACCEPT_1(expr, Expr),
2501 GET_ACCEPT_1(designation, Designation)
2502 )
2503 );
[6d51bd7]2504 }
2505
[7870799]2506 virtual void visit( const DeletedExpr * old ) override final {
[20de6fb]2507 this->node = visitBaseExpr( old,
2508 new ast::DeletedExpr(
2509 old->location,
2510 GET_ACCEPT_1(expr, Expr),
2511 inCache(old->deleteStmt) ?
[e67991f]2512 strict_dynamic_cast<ast::Decl*>(this->node) :
2513 GET_ACCEPT_1(deleteStmt, Decl)
[20de6fb]2514 )
2515 );
[6d51bd7]2516 }
2517
[7870799]2518 virtual void visit( const DefaultArgExpr * old ) override final {
[20de6fb]2519 this->node = visitBaseExpr( old,
2520 new ast::DefaultArgExpr(
2521 old->location,
2522 GET_ACCEPT_1(expr, Expr)
2523 )
2524 );
2525 }
[6d51bd7]2526
[7870799]2527 virtual void visit( const GenericExpr * old ) override final {
[20de6fb]2528 std::vector<ast::GenericExpr::Association> associations;
2529 for (auto association : old->associations) {
2530 associations.push_back(ast::GenericExpr::Association(
2531 getAccept1< ast::Type, Type * >( association.type ),
2532 getAccept1< ast::Expr, Expression * >( association.expr )
2533 ));
2534 }
2535 this->node = visitBaseExpr( old,
2536 new ast::GenericExpr(
2537 old->location,
2538 GET_ACCEPT_1(control, Expr),
2539 std::move(associations)
2540 )
2541 );
[6d51bd7]2542 }
2543
[7870799]2544 void visitType( const Type * old, ast::Type * type ) {
[1ae47de]2545 // Some types do this in their constructor so add a check.
2546 if ( !old->attributes.empty() && type->attributes.empty() ) {
2547 type->attributes = GET_ACCEPT_V(attributes, Attribute);
2548 }
2549 this->node = type;
2550 }
2551
[7870799]2552 virtual void visit( const VoidType * old ) override final {
[1ae47de]2553 visitType( old, new ast::VoidType{ cv( old ) } );
[6d51bd7]2554 }
2555
[7870799]2556 virtual void visit( const BasicType * old ) override final {
[2a54479]2557 auto type = new ast::BasicType{ (ast::BasicType::Kind)(unsigned)old->kind, cv( old ) };
2558 // I believe this should always be a BasicType.
2559 if ( Validate::SizeType == old ) {
[490fb92e]2560 ast::sizeType = type;
[2a54479]2561 }
[1ae47de]2562 visitType( old, type );
[6d51bd7]2563 }
2564
[7870799]2565 virtual void visit( const PointerType * old ) override final {
[1ae47de]2566 visitType( old, new ast::PointerType{
[d148778]2567 GET_ACCEPT_1( base, Type ),
2568 GET_ACCEPT_1( dimension, Expr ),
2569 (ast::LengthFlag)old->isVarLen,
2570 (ast::DimensionFlag)old->isStatic,
2571 cv( old )
[1ae47de]2572 } );
[6d51bd7]2573 }
2574
[7870799]2575 virtual void visit( const ArrayType * old ) override final {
[1ae47de]2576 visitType( old, new ast::ArrayType{
[d148778]2577 GET_ACCEPT_1( base, Type ),
2578 GET_ACCEPT_1( dimension, Expr ),
2579 (ast::LengthFlag)old->isVarLen,
2580 (ast::DimensionFlag)old->isStatic,
2581 cv( old )
[1ae47de]2582 } );
[6d51bd7]2583 }
2584
[7870799]2585 virtual void visit( const ReferenceType * old ) override final {
[1ae47de]2586 visitType( old, new ast::ReferenceType{
[d148778]2587 GET_ACCEPT_1( base, Type ),
2588 cv( old )
[1ae47de]2589 } );
[6d51bd7]2590 }
2591
[7870799]2592 virtual void visit( const QualifiedType * old ) override final {
[1ae47de]2593 visitType( old, new ast::QualifiedType{
[d148778]2594 GET_ACCEPT_1( parent, Type ),
2595 GET_ACCEPT_1( child, Type ),
2596 cv( old )
[1ae47de]2597 } );
[6d51bd7]2598 }
2599
[7870799]2600 virtual void visit( const FunctionType * old ) override final {
[d148778]2601 auto ty = new ast::FunctionType {
2602 (ast::ArgumentFlag)old->isVarArgs,
2603 cv( old )
2604 };
[954c954]2605 auto returnVars = GET_ACCEPT_V(returnVals, DeclWithType);
2606 auto paramVars = GET_ACCEPT_V(parameters, DeclWithType);
2607 // ty->returns = GET_ACCEPT_V( returnVals, DeclWithType );
2608 // ty->params = GET_ACCEPT_V( parameters, DeclWithType );
2609 for (auto & v: returnVars) {
2610 ty->returns.emplace_back(v->get_type());
2611 }
2612 for (auto & v: paramVars) {
2613 ty->params.emplace_back(v->get_type());
2614 }
[d148778]2615 ty->forall = GET_ACCEPT_V( forall, TypeDecl );
[1ae47de]2616 visitType( old, ty );
[6d51bd7]2617 }
2618
[98e8b3b]2619 void postvisit( const ReferenceToType * old, ast::BaseInstType * ty ) {
[d148778]2620 ty->forall = GET_ACCEPT_V( forall, TypeDecl );
2621 ty->params = GET_ACCEPT_V( parameters, Expr );
2622 ty->hoistType = old->hoistType;
[1ae47de]2623 visitType( old, ty );
[6d51bd7]2624 }
2625
[7870799]2626 virtual void visit( const StructInstType * old ) override final {
[b869ec5]2627 ast::StructInstType * ty;
2628 if ( old->baseStruct ) {
2629 ty = new ast::StructInstType{
2630 GET_ACCEPT_1( baseStruct, StructDecl ),
2631 cv( old ),
2632 GET_ACCEPT_V( attributes, Attribute )
2633 };
2634 } else {
2635 ty = new ast::StructInstType{
2636 old->name,
2637 cv( old ),
2638 GET_ACCEPT_V( attributes, Attribute )
2639 };
2640 }
[d148778]2641 postvisit( old, ty );
[6d51bd7]2642 }
2643
[7870799]2644 virtual void visit( const UnionInstType * old ) override final {
[b869ec5]2645 ast::UnionInstType * ty;
2646 if ( old->baseUnion ) {
2647 ty = new ast::UnionInstType{
2648 GET_ACCEPT_1( baseUnion, UnionDecl ),
2649 cv( old ),
2650 GET_ACCEPT_V( attributes, Attribute )
2651 };
2652 } else {
2653 ty = new ast::UnionInstType{
2654 old->name,
2655 cv( old ),
2656 GET_ACCEPT_V( attributes, Attribute )
2657 };
2658 }
[d148778]2659 postvisit( old, ty );
[6d51bd7]2660 }
2661
[7870799]2662 virtual void visit( const EnumInstType * old ) override final {
[b869ec5]2663 ast::EnumInstType * ty;
2664 if ( old->baseEnum ) {
2665 ty = new ast::EnumInstType{
2666 GET_ACCEPT_1( baseEnum, EnumDecl ),
2667 cv( old ),
2668 GET_ACCEPT_V( attributes, Attribute )
2669 };
2670 } else {
2671 ty = new ast::EnumInstType{
2672 old->name,
2673 cv( old ),
2674 GET_ACCEPT_V( attributes, Attribute )
2675 };
2676 }
[d148778]2677 postvisit( old, ty );
[6d51bd7]2678 }
2679
[7870799]2680 virtual void visit( const TraitInstType * old ) override final {
[b869ec5]2681 ast::TraitInstType * ty;
2682 if ( old->baseTrait ) {
2683 ty = new ast::TraitInstType{
2684 GET_ACCEPT_1( baseTrait, TraitDecl ),
2685 cv( old ),
2686 GET_ACCEPT_V( attributes, Attribute )
2687 };
2688 } else {
2689 ty = new ast::TraitInstType{
2690 old->name,
2691 cv( old ),
2692 GET_ACCEPT_V( attributes, Attribute )
2693 };
2694 }
[d148778]2695 postvisit( old, ty );
2696 }
[6d51bd7]2697
[7870799]2698 virtual void visit( const TypeInstType * old ) override final {
[514a791]2699 ast::TypeInstType * ty;
2700 if ( old->baseType ) {
2701 ty = new ast::TypeInstType{
2702 old->name,
[b869ec5]2703 GET_ACCEPT_1( baseType, TypeDecl ),
[514a791]2704 cv( old ),
2705 GET_ACCEPT_V( attributes, Attribute )
2706 };
2707 } else {
2708 ty = new ast::TypeInstType{
2709 old->name,
[07de76b]2710 old->isFtype ? ast::TypeDecl::Ftype : ast::TypeDecl::Dtype,
[514a791]2711 cv( old ),
2712 GET_ACCEPT_V( attributes, Attribute )
2713 };
2714 }
[d148778]2715 postvisit( old, ty );
[6d51bd7]2716 }
2717
[7870799]2718 virtual void visit( const TupleType * old ) override final {
[1ae47de]2719 visitType( old, new ast::TupleType{
[746ae82]2720 GET_ACCEPT_V( types, Type ),
2721 // members generated by TupleType c'tor
2722 cv( old )
[1ae47de]2723 } );
[6d51bd7]2724 }
2725
[7870799]2726 virtual void visit( const TypeofType * old ) override final {
[1ae47de]2727 visitType( old, new ast::TypeofType{
[746ae82]2728 GET_ACCEPT_1( expr, Expr ),
2729 (ast::TypeofType::Kind)old->is_basetypeof,
2730 cv( old )
[1ae47de]2731 } );
[6d51bd7]2732 }
2733
[7870799]2734 virtual void visit( const AttrType * ) override final {
[746ae82]2735 assertf( false, "AttrType deprecated in new AST." );
[6d51bd7]2736 }
2737
[7870799]2738 virtual void visit( const VarArgsType * old ) override final {
[1ae47de]2739 visitType( old, new ast::VarArgsType{ cv( old ) } );
[6d51bd7]2740 }
2741
[7870799]2742 virtual void visit( const ZeroType * old ) override final {
[1ae47de]2743 visitType( old, new ast::ZeroType{ cv( old ) } );
[6d51bd7]2744 }
2745
[7870799]2746 virtual void visit( const OneType * old ) override final {
[1ae47de]2747 visitType( old, new ast::OneType{ cv( old ) } );
[6d51bd7]2748 }
2749
[7870799]2750 virtual void visit( const GlobalScopeType * old ) override final {
[1ae47de]2751 visitType( old, new ast::GlobalScopeType{} );
[6d51bd7]2752 }
2753
[7870799]2754 virtual void visit( const Designation * old ) override final {
[74ad8c0]2755 this->node = new ast::Designation(
2756 old->location,
[60aaa51d]2757 GET_ACCEPT_D(designators, Expr)
[74ad8c0]2758 );
[6d51bd7]2759 }
2760
[7870799]2761 virtual void visit( const SingleInit * old ) override final {
[74ad8c0]2762 this->node = new ast::SingleInit(
2763 old->location,
2764 GET_ACCEPT_1(value, Expr),
2765 (old->get_maybeConstructed()) ? ast::MaybeConstruct : ast::DoConstruct
2766 );
[6d51bd7]2767 }
2768
[7870799]2769 virtual void visit( const ListInit * old ) override final {
[74ad8c0]2770 this->node = new ast::ListInit(
2771 old->location,
2772 GET_ACCEPT_V(initializers, Init),
2773 GET_ACCEPT_V(designations, Designation),
2774 (old->get_maybeConstructed()) ? ast::MaybeConstruct : ast::DoConstruct
2775 );
[6d51bd7]2776 }
2777
[7870799]2778 virtual void visit( const ConstructorInit * old ) override final {
[74ad8c0]2779 this->node = new ast::ConstructorInit(
2780 old->location,
2781 GET_ACCEPT_1(ctor, Stmt),
2782 GET_ACCEPT_1(dtor, Stmt),
2783 GET_ACCEPT_1(init, Init)
2784 );
[6d51bd7]2785 }
2786
[7870799]2787 virtual void visit( const Constant * ) override final {
[dd6d7c6]2788 // Handled in visit( ConstantEpxr * ).
2789 // In the new tree, Constant fields are inlined into containing ConstantExpression.
2790 assert( 0 );
[6d51bd7]2791 }
2792
[7870799]2793 virtual void visit( const Attribute * old ) override final {
[dd6d7c6]2794 this->node = new ast::Attribute(
2795 old->name,
2796 GET_ACCEPT_V( parameters, Expr )
2797 );
[6d51bd7]2798 }
2799};
2800
[6f8e87d]2801#undef GET_LABELS_V
2802#undef GET_ACCEPT_V
2803#undef GET_ACCEPT_1
2804
[74dbbf6]2805std::list< ast::ptr< ast::Decl > > convert( const std::list< Declaration * > && translationUnit ) {
[6d51bd7]2806 ConverterOldToNew c;
2807 std::list< ast::ptr< ast::Decl > > decls;
2808 for(auto d : translationUnit) {
2809 d->accept( c );
2810 decls.emplace_back( c.decl() );
2811 }
[8abee136]2812 deleteAll(translationUnit);
[6d51bd7]2813 return decls;
[6f8e87d]2814}
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