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source: src/AST/Convert.cpp@ 3fc0f2a

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ADT arm-eh ast-experimental enum forall-pointer-decay jacob/cs343-translation jenkins-sandbox new-ast new-ast-unique-expr pthread-emulation qualifiedEnum

Last change on this file since 3fc0f2a was a2a85658, checked in by Michael Brooks <mlbrooks@…>, 6 years ago
Fixed conversion of tuple assignments to reuse the common part correctly. For example, in [x,y] = foo().[a,b], foo should be called once. Convert-convert before resolve was causing foo to be called twice, because the unique ID of a UniqueExpr wasn't preserved on AST conversion. Symptom was failing test tuple/tupleMember (given convert-convert before resolve).
Property mode set to `100644`
File size: 71.0 KB

Rev	Line
[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
[6f8e87d]	11	// Last Modified By : Andrew Beach
[e6faef4]	12	// Last Modified On : Mon Jun 17 16:44:00 2019
	13	// Update Count : 12
[6d51bd7]	14	//
	15
	16	#include "Convert.hpp"
	17
[60aaa51d]	18	#include <deque>
[d148778]	19	#include <unordered_map>
	20
[6d51bd7]	21	#include "AST/Attribute.hpp"
	22	#include "AST/Decl.hpp"
	23	#include "AST/Expr.hpp"
	24	#include "AST/Init.hpp"
	25	#include "AST/Stmt.hpp"
[172d9342]	26	#include "AST/TypeSubstitution.hpp"
[6d51bd7]	27
[157a816]	28	#include "SymTab/Autogen.h"
[6d51bd7]	29	#include "SynTree/Attribute.h"
	30	#include "SynTree/Declaration.h"
[172d9342]	31	#include "SynTree/TypeSubstitution.h"
[6d51bd7]	32
[0aedb01]	33	#include "Validate/FindSpecialDecls.h"
	34
[6d51bd7]	35	//================================================================================================
	36	// Utilities
	37	template<template <class...> class C>
	38	struct to {
	39	template<typename T>
	40	static auto from( T && v ) -> C< typename T::value_type > {
	41	C< typename T::value_type > l;
	42	std::move(std::begin(v), std::end(v), std::back_inserter(l));
	43	return l;
	44	}
	45	};
	46
[157a816]	47	//================================================================================================
	48	namespace {
	49
[043a5b6]	50	// This is to preserve the FindSpecialDecls hack. It does not (and perhaps should not)
[157a816]	51	// allow us to use the same stratagy in the new ast.
[2a54479]	52	ast::Type * sizeType = nullptr;
[157a816]	53	ast::FunctionDecl * dereferenceOperator = nullptr;
[043a5b6]	54	ast::StructDecl * dtorStruct = nullptr;
	55	ast::FunctionDecl * dtorStructDestroy = nullptr;
[157a816]	56
	57	}
	58
[6d51bd7]	59	//================================================================================================
[74dbbf6]	60	class ConverterNewToOld : public ast::Visitor {
[675d816]	61	BaseSyntaxNode * node = nullptr;
[b869ec5]	62	using Cache = std::unordered_map< const ast::Node , BaseSyntaxNode >;
	63	Cache cache;
[675d816]	64
[74dbbf6]	65	template<typename T>
[675d816]	66	struct Getter {
	67	ConverterNewToOld & visitor;
	68
[514a791]	69	template<typename U, enum ast::Node::ref_type R>
	70	T * accept1( const ast::ptr_base<U, R> & ptr ) {
[d148778]	71	if ( ! ptr ) return nullptr;
[675d816]	72	ptr->accept( visitor );
	73	T * ret = strict_dynamic_cast< T * >( visitor.node );
	74	visitor.node = nullptr;
	75	return ret;
	76	}
	77
	78	template<typename U>
	79	std::list< T * > acceptL( const U & container ) {
	80	std::list< T * > ret;
[d76c588]	81	for ( auto ptr : container ) {
[675d816]	82	ret.emplace_back( accept1( ptr ) );
	83	}
	84	return ret;
	85	}
	86	};
	87
	88	template<typename T>
	89	Getter<T> get() {
	90	return Getter<T>{ *this };
	91	}
	92
	93	Label makeLabel(Statement * labelled, const ast::Label& label) {
[a62749f]	94	// This probably will leak memory, but only until we get rid of the old tree.
	95	if ( nullptr == labelled && label.location.isSet() ) {
	96	labelled = new NullStmt();
	97	labelled->location = label.location;
	98	}
[675d816]	99	return Label(
	100	label.name,
	101	labelled,
	102	get<Attribute>().acceptL(label.attributes)
	103	);
	104	}
	105
	106	template<template <class...> class C>
	107	std::list<Label> makeLabelL(Statement * labelled, const C<ast::Label>& labels) {
	108	std::list<Label> ret;
	109	for (auto label : labels) {
	110	ret.push_back( makeLabel(labelled, label) );
	111	}
[74dbbf6]	112	return ret;
	113	}
	114
[d148778]	115	/// get new qualifiers from old type
	116	Type::Qualifiers cv( const ast::Type * ty ) { return { ty->qualifiers.val }; }
	117
[b869ec5]	118	/// returns true and sets `node` if in cache
	119	bool inCache( const ast::Node * node ) {
	120	auto it = cache.find( node );
	121	if ( it == cache.end() ) return false;
	122	this->node = it->second;
	123	return true;
[d148778]	124	}
	125
[675d816]	126	public:
	127	Declaration * decl( const ast::Decl * declNode ) {
	128	return get<Declaration>().accept1( ast::ptr<ast::Decl>( declNode ) );
	129	}
[74dbbf6]	130
[675d816]	131	private:
[112fe04]	132	void declPostamble( Declaration * decl, const ast::Decl * node ) {
	133	decl->location = node->location;
	134	// name comes from constructor
	135	// linkage comes from constructor
	136	decl->extension = node->extension;
	137	decl->uniqueId = node->uniqueId;
	138	// storageClasses comes from constructor
	139	this->node = decl;
	140	}
	141
	142	const ast::DeclWithType * declWithTypePostamble (
	143	DeclarationWithType * decl, const ast::DeclWithType * node ) {
[f685679]	144	cache.emplace( node, decl );
[112fe04]	145	decl->mangleName = node->mangleName;
	146	decl->scopeLevel = node->scopeLevel;
	147	decl->asmName = get<Expression>().accept1( node->asmName );
	148	// attributes comes from constructor
	149	decl->isDeleted = node->isDeleted;
	150	// fs comes from constructor
[f685679]	151	declPostamble( decl, node );
[74dbbf6]	152	return nullptr;
	153	}
	154
[112fe04]	155	const ast::DeclWithType * visit( const ast::ObjectDecl * node ) override final {
[546e712]	156	auto&& bfwd = get<Expression>().accept1( node->bitfieldWidth );
	157	auto&& type = get<Type>().accept1( node->type );
	158	auto&& init = get<Initializer>().accept1( node->init );
	159	auto&& attr = get<Attribute>().acceptL( node->attributes );
	160	if ( inCache( node ) ) {
	161	return nullptr;
	162	}
[112fe04]	163	auto decl = new ObjectDecl(
	164	node->name,
	165	Type::StorageClasses( node->storage.val ),
	166	LinkageSpec::Spec( node->linkage.val ),
[546e712]	167	bfwd,
	168	type,
	169	init,
	170	attr,
[112fe04]	171	Type::FuncSpecifiers( node->funcSpec.val )
	172	);
	173	return declWithTypePostamble( decl, node );
	174	}
	175
[74dbbf6]	176	const ast::DeclWithType * visit( const ast::FunctionDecl * node ) override final {
[b869ec5]	177	if ( inCache( node ) ) return nullptr;
[112fe04]	178	auto decl = new FunctionDecl(
	179	node->name,
	180	Type::StorageClasses( node->storage.val ),
	181	LinkageSpec::Spec( node->linkage.val ),
	182	get<FunctionType>().accept1( node->type ),
[d88f8b3b]	183	{},
[112fe04]	184	get<Attribute>().acceptL( node->attributes ),
	185	Type::FuncSpecifiers( node->funcSpec.val )
	186	);
[d88f8b3b]	187	cache.emplace( node, decl );
	188	decl->statements = get<CompoundStmt>().accept1( node->stmts );
[112fe04]	189	decl->withExprs = get<Expression>().acceptL( node->withExprs );
[157a816]	190	if ( dereferenceOperator == node ) {
[0aedb01]	191	Validate::dereferenceOperator = decl;
[157a816]	192	}
[043a5b6]	193	if ( dtorStructDestroy == node ) {
	194	Validate::dtorStructDestroy = decl;
	195	}
[112fe04]	196	return declWithTypePostamble( decl, node );
[74dbbf6]	197	}
	198
[112fe04]	199	const ast::Decl * namedTypePostamble( NamedTypeDecl * decl, const ast::NamedTypeDecl * node ) {
	200	// base comes from constructor
	201	decl->parameters = get<TypeDecl>().acceptL( node->params );
	202	decl->assertions = get<DeclarationWithType>().acceptL( node->assertions );
[f685679]	203	declPostamble( decl, node );
[74dbbf6]	204	return nullptr;
	205	}
	206
[112fe04]	207	const ast::Decl * visit( const ast::TypeDecl * node ) override final {
[b869ec5]	208	if ( inCache( node ) ) return nullptr;
[112fe04]	209	auto decl = new TypeDecl(
	210	node->name,
	211	Type::StorageClasses( node->storage.val ),
	212	get<Type>().accept1( node->base ),
[b869ec5]	213	(TypeDecl::Kind)(unsigned)node->kind,
[112fe04]	214	node->sized,
	215	get<Type>().accept1( node->init )
	216	);
[b869ec5]	217	cache.emplace( node, decl );
[112fe04]	218	return namedTypePostamble( decl, node );
[74dbbf6]	219	}
	220
[112fe04]	221	const ast::Decl * visit( const ast::TypedefDecl * node ) override final {
	222	auto decl = new TypedefDecl(
	223	node->name,
	224	node->location,
	225	Type::StorageClasses( node->storage.val ),
	226	get<Type>().accept1( node->base ),
	227	LinkageSpec::Spec( node->linkage.val )
	228	);
	229	return namedTypePostamble( decl, node );
[74dbbf6]	230	}
	231
[112fe04]	232	const ast::Decl * aggregatePostamble( AggregateDecl * decl, const ast::AggregateDecl * node ) {
[f685679]	233	cache.emplace( node, decl );
[112fe04]	234	decl->members = get<Declaration>().acceptL( node->members );
	235	decl->parameters = get<TypeDecl>().acceptL( node->params );
	236	decl->body = node->body;
	237	// attributes come from constructor
[b869ec5]	238	decl->parent = get<AggregateDecl>().accept1( node->parent );
[f685679]	239	declPostamble( decl, node );
[74dbbf6]	240	return nullptr;
	241	}
	242
[112fe04]	243	const ast::Decl * visit( const ast::StructDecl * node ) override final {
[b869ec5]	244	if ( inCache( node ) ) return nullptr;
[112fe04]	245	auto decl = new StructDecl(
	246	node->name,
	247	node->kind,
	248	get<Attribute>().acceptL( node->attributes ),
	249	LinkageSpec::Spec( node->linkage.val )
	250	);
[043a5b6]	251
	252	if ( dtorStruct == node ) {
	253	Validate::dtorStruct = decl;
	254	}
	255
[112fe04]	256	return aggregatePostamble( decl, node );
[74dbbf6]	257	}
	258
[112fe04]	259	const ast::Decl * visit( const ast::UnionDecl * node ) override final {
[b869ec5]	260	if ( inCache( node ) ) return nullptr;
[112fe04]	261	auto decl = new UnionDecl(
	262	node->name,
	263	get<Attribute>().acceptL( node->attributes ),
	264	LinkageSpec::Spec( node->linkage.val )
	265	);
	266	return aggregatePostamble( decl, node );
	267	}
	268
	269	const ast::Decl * visit( const ast::EnumDecl * node ) override final {
[b869ec5]	270	if ( inCache( node ) ) return nullptr;
[112fe04]	271	auto decl = new EnumDecl(
	272	node->name,
	273	get<Attribute>().acceptL( node->attributes ),
	274	LinkageSpec::Spec( node->linkage.val )
	275	);
	276	return aggregatePostamble( decl, node );
	277	}
	278
	279	const ast::Decl * visit( const ast::TraitDecl * node ) override final {
[b869ec5]	280	if ( inCache( node ) ) return nullptr;
[112fe04]	281	auto decl = new TraitDecl(
	282	node->name,
	283	{},
	284	LinkageSpec::Spec( node->linkage.val )
	285	);
	286	return aggregatePostamble( decl, node );
[74dbbf6]	287	}
	288
	289	const ast::AsmDecl * visit( const ast::AsmDecl * node ) override final {
[112fe04]	290	auto decl = new AsmDecl( get<AsmStmt>().accept1( node->stmt ) );
	291	declPostamble( decl, node );
[74dbbf6]	292	return nullptr;
	293	}
	294
	295	const ast::StaticAssertDecl * visit( const ast::StaticAssertDecl * node ) override final {
[112fe04]	296	auto decl = new StaticAssertDecl(
	297	get<Expression>().accept1( node->cond ),
	298	get<ConstantExpr>().accept1( node->msg )
	299	);
	300	declPostamble( decl, node );
[74dbbf6]	301	return nullptr;
	302	}
	303
[112fe04]	304	const ast::Stmt * stmtPostamble( Statement * stmt, const ast::Stmt * node ) {
[f685679]	305	cache.emplace( node, stmt );
[675d816]	306	stmt->location = node->location;
	307	stmt->labels = makeLabelL( stmt, node->labels );
	308	this->node = stmt;
[74dbbf6]	309	return nullptr;
	310	}
	311
[112fe04]	312	const ast::CompoundStmt * visit( const ast::CompoundStmt * node ) override final {
[4073b16]	313	if ( inCache( node ) ) return nullptr;
[112fe04]	314	auto stmt = new CompoundStmt( get<Statement>().acceptL( node->kids ) );
	315	stmtPostamble( stmt, node );
	316	return nullptr;
	317	}
	318
[74dbbf6]	319	const ast::Stmt * visit( const ast::ExprStmt * node ) override final {
[4073b16]	320	if ( inCache( node ) ) return nullptr;
[f685679]	321	auto stmt = new ExprStmt( nullptr );
	322	cache.emplace( node, stmt );
	323	stmt->expr = get<Expression>().accept1( node->expr );
[112fe04]	324	return stmtPostamble( stmt, node );
[74dbbf6]	325	}
	326
	327	const ast::Stmt * visit( const ast::AsmStmt * node ) override final {
[4073b16]	328	if ( inCache( node ) ) return nullptr;
[675d816]	329	auto stmt = new AsmStmt(
	330	node->isVolatile,
	331	get<Expression>().accept1( node->instruction ),
	332	get<Expression>().acceptL( node->output ),
	333	get<Expression>().acceptL( node->input ),
	334	get<ConstantExpr>().acceptL( node->clobber ),
	335	makeLabelL( nullptr, node->gotoLabels ) // What are these labelling?
	336	);
[112fe04]	337	return stmtPostamble( stmt, node );
[74dbbf6]	338	}
	339
	340	const ast::Stmt * visit( const ast::DirectiveStmt * node ) override final {
[4073b16]	341	if ( inCache( node ) ) return nullptr;
[675d816]	342	auto stmt = new DirectiveStmt( node->directive );
[112fe04]	343	return stmtPostamble( stmt, node );
[74dbbf6]	344	}
	345
	346	const ast::Stmt * visit( const ast::IfStmt * node ) override final {
[4073b16]	347	if ( inCache( node ) ) return nullptr;
[675d816]	348	auto stmt = new IfStmt(
	349	get<Expression>().accept1( node->cond ),
	350	get<Statement>().accept1( node->thenPart ),
	351	get<Statement>().accept1( node->elsePart ),
	352	get<Statement>().acceptL( node->inits )
	353	);
[112fe04]	354	return stmtPostamble( stmt, node );
[74dbbf6]	355	}
	356
[675d816]	357	const ast::Stmt * visit( const ast::SwitchStmt * node ) override final {
[4073b16]	358	if ( inCache( node ) ) return nullptr;
[675d816]	359	auto stmt = new SwitchStmt(
	360	get<Expression>().accept1( node->cond ),
	361	get<Statement>().acceptL( node->stmts )
	362	);
[112fe04]	363	return stmtPostamble( stmt, node );
[74dbbf6]	364	}
	365
[675d816]	366	const ast::Stmt * visit( const ast::CaseStmt * node ) override final {
[4073b16]	367	if ( inCache( node ) ) return nullptr;
[675d816]	368	auto stmt = new CaseStmt(
	369	get<Expression>().accept1( node->cond ),
	370	get<Statement>().acceptL( node->stmts ),
	371	node->isDefault()
	372	);
[112fe04]	373	return stmtPostamble( stmt, node );
[74dbbf6]	374	}
	375
[675d816]	376	const ast::Stmt * visit( const ast::WhileStmt * node ) override final {
[4073b16]	377	if ( inCache( node ) ) return nullptr;
[675d816]	378	auto inits = get<Statement>().acceptL( node->inits );
	379	auto stmt = new WhileStmt(
	380	get<Expression>().accept1( node->cond ),
	381	get<Statement>().accept1( node->body ),
	382	inits,
	383	node->isDoWhile
	384	);
[112fe04]	385	return stmtPostamble( stmt, node );
[74dbbf6]	386	}
	387
[675d816]	388	const ast::Stmt * visit( const ast::ForStmt * node ) override final {
[4073b16]	389	if ( inCache( node ) ) return nullptr;
[675d816]	390	auto stmt = new ForStmt(
	391	get<Statement>().acceptL( node->inits ),
	392	get<Expression>().accept1( node->cond ),
	393	get<Expression>().accept1( node->inc ),
	394	get<Statement>().accept1( node->body )
	395	);
[112fe04]	396	return stmtPostamble( stmt, node );
[74dbbf6]	397	}
	398
	399	const ast::Stmt * visit( const ast::BranchStmt * node ) override final {
[4073b16]	400	if ( inCache( node ) ) return nullptr;
[675d816]	401	BranchStmt * stmt;
	402	if (node->computedTarget) {
	403	stmt = new BranchStmt( get<Expression>().accept1( node->computedTarget ),
	404	BranchStmt::Goto );
	405	} else {
	406	BranchStmt::Type type;
	407	switch (node->kind) {
	408	#define CASE(n) \
	409	case ast::BranchStmt::n: \
	410	type = BranchStmt::n; \
	411	break
	412	CASE(Goto);
	413	CASE(Break);
	414	CASE(Continue);
	415	CASE(FallThrough);
	416	CASE(FallThroughDefault);
	417	#undef CASE
	418	default:
	419	assertf(false, "Invalid ast::BranchStmt::Kind: %d\n", node->kind);
	420	}
	421
	422	// The labels here are also weird.
	423	stmt = new BranchStmt( makeLabel( nullptr, node->originalTarget ), type );
	424	stmt->target = makeLabel( stmt, node->target );
	425	}
[112fe04]	426	return stmtPostamble( stmt, node );
[74dbbf6]	427	}
	428
	429	const ast::Stmt * visit( const ast::ReturnStmt * node ) override final {
[4073b16]	430	if ( inCache( node ) ) return nullptr;
[675d816]	431	auto stmt = new ReturnStmt( get<Expression>().accept1( node->expr ) );
[112fe04]	432	return stmtPostamble( stmt, node );
[74dbbf6]	433	}
	434
	435	const ast::Stmt * visit( const ast::ThrowStmt * node ) override final {
[4073b16]	436	if ( inCache( node ) ) return nullptr;
[675d816]	437	ThrowStmt::Kind kind;
	438	switch (node->kind) {
[6f4b7f2]	439	case ast::ExceptionKind::Terminate:
[675d816]	440	kind = ThrowStmt::Terminate;
	441	break;
[6f4b7f2]	442	case ast::ExceptionKind::Resume:
[675d816]	443	kind = ThrowStmt::Resume;
	444	break;
	445	default:
	446	assertf(false, "Invalid ast::ThrowStmt::Kind: %d\n", node->kind);
	447	}
	448	auto stmt = new ThrowStmt(
	449	kind,
	450	get<Expression>().accept1( node->expr ),
	451	get<Expression>().accept1( node->target )
	452	);
[112fe04]	453	return stmtPostamble( stmt, node );
[74dbbf6]	454	}
	455
	456	const ast::Stmt * visit( const ast::TryStmt * node ) override final {
[4073b16]	457	if ( inCache( node ) ) return nullptr;
[675d816]	458	auto handlers = get<CatchStmt>().acceptL( node->handlers );
	459	auto stmt = new TryStmt(
	460	get<CompoundStmt>().accept1( node->body ),
	461	handlers,
	462	get<FinallyStmt>().accept1( node->finally )
	463	);
[112fe04]	464	return stmtPostamble( stmt, node );
[74dbbf6]	465	}
	466
	467	const ast::Stmt * visit( const ast::CatchStmt * node ) override final {
[4073b16]	468	if ( inCache( node ) ) return nullptr;
[675d816]	469	CatchStmt::Kind kind;
	470	switch (node->kind) {
[6f4b7f2]	471	case ast::ExceptionKind::Terminate:
[675d816]	472	kind = CatchStmt::Terminate;
	473	break;
[6f4b7f2]	474	case ast::ExceptionKind::Resume:
[675d816]	475	kind = CatchStmt::Resume;
	476	break;
	477	default:
	478	assertf(false, "Invalid ast::CatchStmt::Kind: %d\n", node->kind);
	479	}
	480	auto stmt = new CatchStmt(
	481	kind,
	482	get<Declaration>().accept1( node->decl ),
	483	get<Expression>().accept1( node->cond ),
	484	get<Statement>().accept1( node->body )
	485	);
[112fe04]	486	return stmtPostamble( stmt, node );
[74dbbf6]	487	}
	488
	489	const ast::Stmt * visit( const ast::FinallyStmt * node ) override final {
[4073b16]	490	if ( inCache( node ) ) return nullptr;
[675d816]	491	auto stmt = new FinallyStmt( get<CompoundStmt>().accept1( node->body ) );
[112fe04]	492	return stmtPostamble( stmt, node );
[74dbbf6]	493	}
	494
	495	const ast::Stmt * visit( const ast::WaitForStmt * node ) override final {
[4073b16]	496	if ( inCache( node ) ) return nullptr;
[675d816]	497	auto stmt = new WaitForStmt;
	498	stmt->clauses.reserve( node->clauses.size() );
	499	for ( auto clause : node->clauses ) {
	500	stmt->clauses.push_back({{
[e0016a5]	501	get<Expression>().accept1( clause.target.func ),
	502	get<Expression>().acceptL( clause.target.args ),
[675d816]	503	},
	504	get<Statement>().accept1( clause.stmt ),
	505	get<Expression>().accept1( clause.cond ),
	506	});
	507	}
	508	stmt->timeout = {
	509	get<Expression>().accept1( node->timeout.time ),
	510	get<Statement>().accept1( node->timeout.stmt ),
	511	get<Expression>().accept1( node->timeout.cond ),
	512	};
	513	stmt->orelse = {
	514	get<Statement>().accept1( node->orElse.stmt ),
	515	get<Expression>().accept1( node->orElse.cond ),
	516	};
[112fe04]	517	return stmtPostamble( stmt, node );
[74dbbf6]	518	}
	519
	520	const ast::Stmt * visit( const ast::WithStmt * node ) override final {
[4073b16]	521	if ( inCache( node ) ) return nullptr;
[675d816]	522	auto stmt = new WithStmt(
	523	get<Expression>().acceptL( node->exprs ),
	524	get<Statement>().accept1( node->stmt )
	525	);
[112fe04]	526	return stmtPostamble( stmt, node );
[74dbbf6]	527	}
	528
	529	const ast::NullStmt * visit( const ast::NullStmt * node ) override final {
[4073b16]	530	if ( inCache( node ) ) return nullptr;
[675d816]	531	auto stmt = new NullStmt();
[112fe04]	532	stmtPostamble( stmt, node );
[74dbbf6]	533	return nullptr;
	534	}
	535
	536	const ast::Stmt * visit( const ast::DeclStmt * node ) override final {
[4073b16]	537	if ( inCache( node ) ) return nullptr;
[675d816]	538	auto stmt = new DeclStmt( get<Declaration>().accept1( node->decl ) );
[112fe04]	539	return stmtPostamble( stmt, node );
[74dbbf6]	540	}
	541
	542	const ast::Stmt * visit( const ast::ImplicitCtorDtorStmt * node ) override final {
[4073b16]	543	if ( inCache( node ) ) return nullptr;
	544	auto stmt = new ImplicitCtorDtorStmt{
	545	get<Statement>().accept1( node->callStmt )
	546	};
	547	return stmtPostamble( stmt, node );
[74dbbf6]	548	}
	549
[19e567dd]	550	TypeSubstitution * convertTypeSubstitution(const ast::TypeSubstitution * src) {
	551
[f685679]	552	if (!src) return nullptr;
	553
[19e567dd]	554	TypeSubstitution *rslt = new TypeSubstitution();
	555
	556	for (decltype(src->begin()) src_i = src->begin(); src_i != src->end(); src_i++) {
	557	rslt->add( src_i->first,
	558	get<Type>().accept1(src_i->second) );
	559	}
	560
	561	for (decltype(src->beginVar()) src_i = src->beginVar(); src_i != src->endVar(); src_i++) {
	562	rslt->addVar( src_i->first,
	563	get<Expression>().accept1(src_i->second) );
	564	}
	565
	566	return rslt;
	567	}
	568
	569	void convertInferUnion(std::map<UniqueId,ParamEntry> &tgtInferParams,
	570	std::vector<UniqueId> &tgtResnSlots,
	571	const ast::Expr::InferUnion &srcInferred ) {
	572
	573	assert( tgtInferParams.empty() );
	574	assert( tgtResnSlots.empty() );
	575
	576	if ( srcInferred.mode == ast::Expr::InferUnion::Params ) {
[60aaa51d]	577	const ast::InferredParams &srcParams = srcInferred.inferParams();
[8b34df0]	578	for (auto & srcParam : srcParams) {
	579	auto res = tgtInferParams.emplace(srcParam.first, ParamEntry(
[19e567dd]	580	srcParam.second.decl,
[aaeacf4]	581	get<Declaration>().accept1(srcParam.second.declptr),
[19e567dd]	582	get<Type>().accept1(srcParam.second.actualType),
	583	get<Type>().accept1(srcParam.second.formalType),
	584	get<Expression>().accept1(srcParam.second.expr)
[8b34df0]	585	));
	586	assert(res.second);
[19e567dd]	587	}
	588	} else if ( srcInferred.mode == ast::Expr::InferUnion::Slots ) {
[60aaa51d]	589	const ast::ResnSlots &srcSlots = srcInferred.resnSlots();
[19e567dd]	590	for (auto srcSlot : srcSlots) {
	591	tgtResnSlots.push_back(srcSlot);
	592	}
	593	}
	594	}
	595
[20de6fb]	596	Expression * visitBaseExpr_skipResultType(const ast::Expr * src, Expression * tgt) {
[19e567dd]	597
[20de6fb]	598	tgt->location = src->location;
	599	tgt->env = convertTypeSubstitution(src->env);
[19e567dd]	600	tgt->extension = src->extension;
	601
[20de6fb]	602	convertInferUnion(tgt->inferParams, tgt->resnSlots, src->inferred);
[19e567dd]	603	return tgt;
	604	}
	605
[20de6fb]	606	Expression * visitBaseExpr(const ast::Expr * src, Expression * tgt) {
	607
	608	tgt->result = get<Type>().accept1(src->result);
	609	return visitBaseExpr_skipResultType(src, tgt);
	610	}
	611
[74dbbf6]	612	const ast::Expr * visit( const ast::ApplicationExpr * node ) override final {
[19e567dd]	613	auto expr = visitBaseExpr( node,
	614	new ApplicationExpr(
	615	get<Expression>().accept1(node->func),
	616	get<Expression>().acceptL(node->args)
	617	)
	618	);
	619	this->node = expr;
[74dbbf6]	620	return nullptr;
	621	}
	622
	623	const ast::Expr * visit( const ast::UntypedExpr * node ) override final {
[19e567dd]	624	auto expr = visitBaseExpr( node,
	625	new UntypedExpr(
	626	get<Expression>().accept1(node->func),
	627	get<Expression>().acceptL(node->args)
	628	)
	629	);
	630	this->node = expr;
[74dbbf6]	631	return nullptr;
	632	}
	633
	634	const ast::Expr * visit( const ast::NameExpr * node ) override final {
[19e567dd]	635	auto expr = visitBaseExpr( node,
	636	new NameExpr(
	637	node->name
	638	)
	639	);
	640	this->node = expr;
[74dbbf6]	641	return nullptr;
	642	}
	643
	644	const ast::Expr * visit( const ast::AddressExpr * node ) override final {
[28c89f4]	645	auto expr = visitBaseExpr( node,
	646	new AddressExpr(
	647	get<Expression>().accept1(node->arg)
	648	)
	649	);
	650	this->node = expr;
[74dbbf6]	651	return nullptr;
	652	}
	653
	654	const ast::Expr * visit( const ast::LabelAddressExpr * node ) override final {
[28c89f4]	655	auto expr = visitBaseExpr( node,
	656	new LabelAddressExpr(
	657	makeLabel(nullptr, node->arg)
	658	)
	659	);
	660	this->node = expr;
[74dbbf6]	661	return nullptr;
	662	}
	663
	664	const ast::Expr * visit( const ast::CastExpr * node ) override final {
[28c89f4]	665	auto expr = visitBaseExpr( node,
	666	new CastExpr(
	667	get<Expression>().accept1(node->arg),
	668	(node->isGenerated == ast::GeneratedCast)
	669	)
	670	);
	671	this->node = expr;
[74dbbf6]	672	return nullptr;
	673	}
	674
	675	const ast::Expr * visit( const ast::KeywordCastExpr * node ) override final {
[28c89f4]	676	KeywordCastExpr::Target castTarget = KeywordCastExpr::NUMBER_OF_TARGETS;
	677	switch (node->target) {
	678	case ast::KeywordCastExpr::Coroutine:
	679	castTarget = KeywordCastExpr::Coroutine;
	680	break;
	681	case ast::KeywordCastExpr::Thread:
	682	castTarget = KeywordCastExpr::Thread;
	683	break;
	684	case ast::KeywordCastExpr::Monitor:
	685	castTarget = KeywordCastExpr::Monitor;
	686	break;
	687	default:
	688	break;
	689	}
	690	assert ( castTarget < KeywordCastExpr::NUMBER_OF_TARGETS );
	691	auto expr = visitBaseExpr( node,
	692	new KeywordCastExpr(
	693	get<Expression>().accept1(node->arg),
	694	castTarget
	695	)
	696	);
	697	this->node = expr;
[74dbbf6]	698	return nullptr;
	699	}
	700
	701	const ast::Expr * visit( const ast::VirtualCastExpr * node ) override final {
[20de6fb]	702	auto expr = visitBaseExpr_skipResultType( node,
[28c89f4]	703	new VirtualCastExpr(
	704	get<Expression>().accept1(node->arg),
[20de6fb]	705	get<Type>().accept1(node->result)
[28c89f4]	706	)
	707	);
	708	this->node = expr;
[74dbbf6]	709	return nullptr;
	710	}
	711
	712	const ast::Expr * visit( const ast::UntypedMemberExpr * node ) override final {
[28c89f4]	713	auto expr = visitBaseExpr( node,
	714	new UntypedMemberExpr(
	715	get<Expression>().accept1(node->member),
	716	get<Expression>().accept1(node->aggregate)
	717	)
	718	);
	719	this->node = expr;
[74dbbf6]	720	return nullptr;
	721	}
	722
	723	const ast::Expr * visit( const ast::MemberExpr * node ) override final {
[28c89f4]	724	auto expr = visitBaseExpr( node,
	725	new MemberExpr(
[2a54479]	726	get<DeclarationWithType>().accept1(node->member),
[28c89f4]	727	get<Expression>().accept1(node->aggregate)
	728	)
	729	);
	730	this->node = expr;
[74dbbf6]	731	return nullptr;
	732	}
	733
	734	const ast::Expr * visit( const ast::VariableExpr * node ) override final {
[546e712]	735	auto expr = new VariableExpr();
	736	expr->var = get<DeclarationWithType>().accept1(node->var);
[6896548]	737	visitBaseExpr( node, expr );
[28c89f4]	738	this->node = expr;
[74dbbf6]	739	return nullptr;
	740	}
	741
	742	const ast::Expr * visit( const ast::ConstantExpr * node ) override final {
[c36298d]	743	// Old world: two types: rslt->constant.type, rslt->result
	744	// New workd: one public type: node->result, plus node->underlyer only to support roundtrip conversion
	745	// preserving underlyer because the correct type for string literals is complicated to construct,
	746	// and distinguishing a string from other literals using the type is hard to do accurately
	747	// Both worlds: the outer, expression-level type can change during resolution
	748	// for a string, that's char[k] before-resolve and char * after
	749	// Old world: the inner Constant type stays what it was built with
	750	// for a string, that's char[k] always
	751	// Both worlds: the "rep" field of a constant is the C source file fragment that compiles to the desired value
	752	// for a string, that includes outer quotes, backslashes, et al cases from the Literals test
	753	ConstantExpr *rslt = new ConstantExpr(Constant(
	754	get<Type>().accept1(node->underlyer),
	755	node->rep,
	756	node->ival));
[28c89f4]	757	auto expr = visitBaseExpr( node, rslt );
	758	this->node = expr;
[74dbbf6]	759	return nullptr;
	760	}
	761
	762	const ast::Expr * visit( const ast::SizeofExpr * node ) override final {
[28c89f4]	763	assert (node->expr \|\| node->type);
	764	assert (! (node->expr && node->type));
	765	SizeofExpr *rslt;
	766	if (node->expr) {
	767	rslt = new SizeofExpr(
	768	get<Expression>().accept1(node->expr)
	769	);
	770	assert (!rslt->isType);
	771	}
[0b73f0c]	772	else {
	773	assert(node->type);
[28c89f4]	774	rslt = new SizeofExpr(
	775	get<Type>().accept1(node->type)
	776	);
	777	assert (rslt->isType);
	778	}
	779	auto expr = visitBaseExpr( node, rslt );
	780	this->node = expr;
[74dbbf6]	781	return nullptr;
	782	}
	783
	784	const ast::Expr * visit( const ast::AlignofExpr * node ) override final {
[28c89f4]	785	assert (node->expr \|\| node->type);
	786	assert (! (node->expr && node->type));
	787	AlignofExpr *rslt;
	788	if (node->expr) {
	789	rslt = new AlignofExpr(
	790	get<Expression>().accept1(node->expr)
	791	);
	792	assert (!rslt->isType);
	793	}
[0b73f0c]	794	else {
	795	assert(node->type);
[28c89f4]	796	rslt = new AlignofExpr(
	797	get<Type>().accept1(node->type)
	798	);
	799	assert (rslt->isType);
	800	}
	801	auto expr = visitBaseExpr( node, rslt );
	802	this->node = expr;
[74dbbf6]	803	return nullptr;
	804	}
	805
	806	const ast::Expr * visit( const ast::UntypedOffsetofExpr * node ) override final {
[28c89f4]	807	auto expr = visitBaseExpr( node,
	808	new UntypedOffsetofExpr(
	809	get<Type>().accept1(node->type),
	810	node->member
	811	)
	812	);
	813	this->node = expr;
[74dbbf6]	814	return nullptr;
	815	}
	816
	817	const ast::Expr * visit( const ast::OffsetofExpr * node ) override final {
[28c89f4]	818	auto expr = visitBaseExpr( node,
	819	new OffsetofExpr(
	820	get<Type>().accept1(node->type),
[2a54479]	821	get<DeclarationWithType>().accept1(node->member)
[28c89f4]	822	)
	823	);
	824	this->node = expr;
[74dbbf6]	825	return nullptr;
	826	}
	827
	828	const ast::Expr * visit( const ast::OffsetPackExpr * node ) override final {
[28c89f4]	829	auto expr = visitBaseExpr( node,
	830	new OffsetPackExpr(
	831	get<StructInstType>().accept1(node->type)
	832	)
	833	);
	834	this->node = expr;
[74dbbf6]	835	return nullptr;
	836	}
	837
	838	const ast::Expr * visit( const ast::LogicalExpr * node ) override final {
[28c89f4]	839	assert (node->isAnd == ast::LogicalFlag::AndExpr \|\|
	840	node->isAnd == ast::LogicalFlag::OrExpr );
	841	auto expr = visitBaseExpr( node,
	842	new LogicalExpr(
	843	get<Expression>().accept1(node->arg1),
	844	get<Expression>().accept1(node->arg2),
	845	(node->isAnd == ast::LogicalFlag::AndExpr)
	846	)
	847	);
	848	this->node = expr;
[74dbbf6]	849	return nullptr;
	850	}
	851
	852	const ast::Expr * visit( const ast::ConditionalExpr * node ) override final {
[28c89f4]	853	auto expr = visitBaseExpr( node,
	854	new ConditionalExpr(
	855	get<Expression>().accept1(node->arg1),
	856	get<Expression>().accept1(node->arg2),
	857	get<Expression>().accept1(node->arg3)
	858	)
	859	);
	860	this->node = expr;
[74dbbf6]	861	return nullptr;
	862	}
	863
	864	const ast::Expr * visit( const ast::CommaExpr * node ) override final {
[28c89f4]	865	auto expr = visitBaseExpr( node,
	866	new CommaExpr(
	867	get<Expression>().accept1(node->arg1),
	868	get<Expression>().accept1(node->arg2)
	869	)
	870	);
	871	this->node = expr;
[74dbbf6]	872	return nullptr;
	873	}
	874
	875	const ast::Expr * visit( const ast::TypeExpr * node ) override final {
[20de6fb]	876	auto expr = visitBaseExpr( node,
	877	new TypeExpr(
	878	get<Type>().accept1(node->type)
	879	)
	880	);
	881	this->node = expr;
[74dbbf6]	882	return nullptr;
	883	}
	884
	885	const ast::Expr * visit( const ast::AsmExpr * node ) override final {
[20de6fb]	886	auto expr = visitBaseExpr( node,
	887	new AsmExpr(
	888	get<Expression>().accept1(node->inout),
	889	get<Expression>().accept1(node->constraint),
	890	get<Expression>().accept1(node->operand)
	891	)
	892	);
	893	this->node = expr;
[74dbbf6]	894	return nullptr;
	895	}
	896
	897	const ast::Expr * visit( const ast::ImplicitCopyCtorExpr * node ) override final {
[20de6fb]	898	auto rslt = new ImplicitCopyCtorExpr(
	899	get<ApplicationExpr>().accept1(node->callExpr)
	900	);
	901
	902	auto expr = visitBaseExpr( node, rslt );
	903	this->node = expr;
[74dbbf6]	904	return nullptr;
	905	}
	906
	907	const ast::Expr * visit( const ast::ConstructorExpr * node ) override final {
[20de6fb]	908	auto expr = visitBaseExpr( node,
	909	new ConstructorExpr(
	910	get<Expression>().accept1(node->callExpr)
	911	)
	912	);
	913	this->node = expr;
[74dbbf6]	914	return nullptr;
	915	}
	916
	917	const ast::Expr * visit( const ast::CompoundLiteralExpr * node ) override final {
[20de6fb]	918	auto expr = visitBaseExpr_skipResultType( node,
	919	new CompoundLiteralExpr(
	920	get<Type>().accept1(node->result),
	921	get<Initializer>().accept1(node->init)
	922	)
	923	);
	924	this->node = expr;
[74dbbf6]	925	return nullptr;
	926	}
	927
	928	const ast::Expr * visit( const ast::RangeExpr * node ) override final {
[20de6fb]	929	auto expr = visitBaseExpr( node,
	930	new RangeExpr(
	931	get<Expression>().accept1(node->low),
	932	get<Expression>().accept1(node->high)
	933	)
	934	);
	935	this->node = expr;
[74dbbf6]	936	return nullptr;
	937	}
	938
	939	const ast::Expr * visit( const ast::UntypedTupleExpr * node ) override final {
[20de6fb]	940	auto expr = visitBaseExpr( node,
	941	new UntypedTupleExpr(
	942	get<Expression>().acceptL(node->exprs)
	943	)
	944	);
	945	this->node = expr;
[74dbbf6]	946	return nullptr;
	947	}
	948
	949	const ast::Expr * visit( const ast::TupleExpr * node ) override final {
[20de6fb]	950	auto expr = visitBaseExpr( node,
[6e55240]	951	new TupleExpr(
[20de6fb]	952	get<Expression>().acceptL(node->exprs)
	953	)
	954	);
	955	this->node = expr;
[74dbbf6]	956	return nullptr;
	957	}
	958
	959	const ast::Expr * visit( const ast::TupleIndexExpr * node ) override final {
[20de6fb]	960	auto expr = visitBaseExpr( node,
	961	new TupleIndexExpr(
	962	get<Expression>().accept1(node->tuple),
	963	node->index
	964	)
	965	);
	966	this->node = expr;
[74dbbf6]	967	return nullptr;
	968	}
	969
	970	const ast::Expr * visit( const ast::TupleAssignExpr * node ) override final {
[20de6fb]	971	auto expr = visitBaseExpr( node,
	972	new TupleAssignExpr(
	973	get<StmtExpr>().accept1(node->stmtExpr)
	974	)
	975	);
	976	this->node = expr;
[74dbbf6]	977	return nullptr;
	978	}
	979
	980	const ast::Expr * visit( const ast::StmtExpr * node ) override final {
[20de6fb]	981	auto rslt = new StmtExpr(
	982	get<CompoundStmt>().accept1(node->stmts)
	983	);
	984
	985	rslt->returnDecls = get<ObjectDecl>().acceptL(node->returnDecls);
	986	rslt->dtors = get<Expression>().acceptL(node->dtors);
	987
	988	auto expr = visitBaseExpr( node, rslt );
	989	this->node = expr;
[74dbbf6]	990	return nullptr;
	991	}
	992
	993	const ast::Expr * visit( const ast::UniqueExpr * node ) override final {
[20de6fb]	994	auto rslt = new UniqueExpr(
[a2a85658]	995	get<Expression>().accept1(node->expr),
	996	node->id
[20de6fb]	997	);
	998
	999	rslt->object = get<ObjectDecl> ().accept1(node->object);
	1000	rslt->var = get<VariableExpr>().accept1(node->var);
	1001
	1002	auto expr = visitBaseExpr( node, rslt );
	1003	this->node = expr;
[74dbbf6]	1004	return nullptr;
	1005	}
	1006
	1007	const ast::Expr * visit( const ast::UntypedInitExpr * node ) override final {
[20de6fb]	1008	std::list<InitAlternative> initAlts;
	1009	for (auto ia : node->initAlts) {
	1010	initAlts.push_back(InitAlternative(
	1011	get<Type> ().accept1(ia.type),
	1012	get<Designation>().accept1(ia.designation)
	1013	));
	1014	}
	1015	auto expr = visitBaseExpr( node,
	1016	new UntypedInitExpr(
	1017	get<Expression>().accept1(node->expr),
	1018	initAlts
	1019	)
	1020	);
	1021	this->node = expr;
[74dbbf6]	1022	return nullptr;
	1023	}
	1024
	1025	const ast::Expr * visit( const ast::InitExpr * node ) override final {
[20de6fb]	1026	auto expr = visitBaseExpr( node,
	1027	new InitExpr(
	1028	get<Expression>().accept1(node->expr),
	1029	get<Designation>().accept1(node->designation)
	1030	)
	1031	);
	1032	this->node = expr;
[74dbbf6]	1033	return nullptr;
	1034	}
	1035
	1036	const ast::Expr * visit( const ast::DeletedExpr * node ) override final {
[20de6fb]	1037	auto expr = visitBaseExpr( node,
	1038	new DeletedExpr(
	1039	get<Expression>().accept1(node->expr),
	1040	inCache(node->deleteStmt) ?
	1041	this->node :
	1042	get<BaseSyntaxNode>().accept1(node->deleteStmt)
	1043	)
	1044	);
	1045	this->node = expr;
[74dbbf6]	1046	return nullptr;
	1047	}
	1048
	1049	const ast::Expr * visit( const ast::DefaultArgExpr * node ) override final {
[20de6fb]	1050	auto expr = visitBaseExpr( node,
	1051	new DefaultArgExpr(
	1052	get<Expression>().accept1(node->expr)
	1053	)
	1054	);
	1055	this->node = expr;
[74dbbf6]	1056	return nullptr;
	1057	}
	1058
	1059	const ast::Expr * visit( const ast::GenericExpr * node ) override final {
[20de6fb]	1060	std::list<GenericExpr::Association> associations;
	1061	for (auto association : node->associations) {
	1062	associations.push_back(GenericExpr::Association(
	1063	get<Type> ().accept1(association.type),
	1064	get<Expression>().accept1(association.expr)
	1065	));
	1066	}
	1067	auto expr = visitBaseExpr( node,
	1068	new GenericExpr(
	1069	get<Expression>().accept1(node->control),
	1070	associations
	1071	)
	1072	);
	1073	this->node = expr;
[74dbbf6]	1074	return nullptr;
	1075	}
	1076
	1077	const ast::Type * visit( const ast::VoidType * node ) override final {
[d148778]	1078	this->node = new VoidType{ cv( node ) };
[74dbbf6]	1079	return nullptr;
	1080	}
	1081
	1082	const ast::Type * visit( const ast::BasicType * node ) override final {
[2a54479]	1083	auto type = new BasicType{ cv( node ), (BasicType::Kind)(unsigned)node->kind };
	1084	// I believe this should always be a BasicType.
	1085	if ( sizeType == node ) {
	1086	Validate::SizeType = type;
	1087	}
	1088	this->node = type;
[74dbbf6]	1089	return nullptr;
	1090	}
	1091
	1092	const ast::Type * visit( const ast::PointerType * node ) override final {
[d148778]	1093	this->node = new PointerType{
	1094	cv( node ),
	1095	get<Type>().accept1( node->base ),
	1096	get<Expression>().accept1( node->dimension ),
[746ae82]	1097	(bool)node->isVarLen,
	1098	(bool)node->isStatic
[d148778]	1099	};
[74dbbf6]	1100	return nullptr;
	1101	}
	1102
	1103	const ast::Type * visit( const ast::ArrayType * node ) override final {
[d148778]	1104	this->node = new ArrayType{
	1105	cv( node ),
	1106	get<Type>().accept1( node->base ),
	1107	get<Expression>().accept1( node->dimension ),
[746ae82]	1108	(bool)node->isVarLen,
	1109	(bool)node->isStatic
[d148778]	1110	};
[74dbbf6]	1111	return nullptr;
	1112	}
	1113
	1114	const ast::Type * visit( const ast::ReferenceType * node ) override final {
[d148778]	1115	this->node = new ReferenceType{
	1116	cv( node ),
	1117	get<Type>().accept1( node->base )
	1118	};
[74dbbf6]	1119	return nullptr;
	1120	}
	1121
	1122	const ast::Type * visit( const ast::QualifiedType * node ) override final {
[d148778]	1123	this->node = new QualifiedType{
	1124	cv( node ),
	1125	get<Type>().accept1( node->parent ),
	1126	get<Type>().accept1( node->child )
	1127	};
[74dbbf6]	1128	return nullptr;
	1129	}
	1130
	1131	const ast::Type * visit( const ast::FunctionType * node ) override final {
[746ae82]	1132	auto ty = new FunctionType {
[0b57626]	1133	cv( node ),
[746ae82]	1134	(bool)node->isVarArgs
	1135	};
[d148778]	1136	ty->returnVals = get<DeclarationWithType>().acceptL( node->returns );
	1137	ty->parameters = get<DeclarationWithType>().acceptL( node->params );
	1138	ty->forall = get<TypeDecl>().acceptL( node->forall );
[514a791]	1139	this->node = ty;
[74dbbf6]	1140	return nullptr;
	1141	}
	1142
[b869ec5]	1143	void postvisit( const ast::ReferenceToType * old, ReferenceToType * ty ) {
	1144	ty->forall = get<TypeDecl>().acceptL( old->forall );
	1145	ty->parameters = get<Expression>().acceptL( old->params );
	1146	ty->hoistType = old->hoistType;
	1147	}
	1148
[74dbbf6]	1149	const ast::Type * visit( const ast::StructInstType * node ) override final {
[b869ec5]	1150	StructInstType * ty;
	1151	if ( node->base ) {
	1152	ty = new StructInstType{
	1153	cv( node ),
	1154	get<StructDecl>().accept1( node->base ),
	1155	get<Attribute>().acceptL( node->attributes )
	1156	};
	1157	} else {
	1158	ty = new StructInstType{
	1159	cv( node ),
	1160	node->name,
	1161	get<Attribute>().acceptL( node->attributes )
	1162	};
	1163	}
	1164	postvisit( node, ty );
	1165	this->node = ty;
[74dbbf6]	1166	return nullptr;
	1167	}
	1168
	1169	const ast::Type * visit( const ast::UnionInstType * node ) override final {
[b869ec5]	1170	UnionInstType * ty;
	1171	if ( node->base ) {
	1172	ty = new UnionInstType{
	1173	cv( node ),
	1174	get<UnionDecl>().accept1( node->base ),
	1175	get<Attribute>().acceptL( node->attributes )
	1176	};
	1177	} else {
	1178	ty = new UnionInstType{
	1179	cv( node ),
	1180	node->name,
	1181	get<Attribute>().acceptL( node->attributes )
	1182	};
	1183	}
	1184	postvisit( node, ty );
	1185	this->node = ty;
[74dbbf6]	1186	return nullptr;
	1187	}
	1188
	1189	const ast::Type * visit( const ast::EnumInstType * node ) override final {
[b869ec5]	1190	EnumInstType * ty;
	1191	if ( node->base ) {
	1192	ty = new EnumInstType{
	1193	cv( node ),
	1194	get<EnumDecl>().accept1( node->base ),
	1195	get<Attribute>().acceptL( node->attributes )
	1196	};
	1197	} else {
	1198	ty = new EnumInstType{
	1199	cv( node ),
	1200	node->name,
	1201	get<Attribute>().acceptL( node->attributes )
	1202	};
	1203	}
	1204	postvisit( node, ty );
	1205	this->node = ty;
[74dbbf6]	1206	return nullptr;
	1207	}
	1208
	1209	const ast::Type * visit( const ast::TraitInstType * node ) override final {
[b869ec5]	1210	TraitInstType * ty;
	1211	if ( node->base ) {
	1212	ty = new TraitInstType{
	1213	cv( node ),
	1214	get<TraitDecl>().accept1( node->base ),
	1215	get<Attribute>().acceptL( node->attributes )
	1216	};
	1217	} else {
	1218	ty = new TraitInstType{
	1219	cv( node ),
	1220	node->name,
	1221	get<Attribute>().acceptL( node->attributes )
	1222	};
	1223	}
	1224	postvisit( node, ty );
	1225	this->node = ty;
[74dbbf6]	1226	return nullptr;
	1227	}
	1228
	1229	const ast::Type * visit( const ast::TypeInstType * node ) override final {
[b869ec5]	1230	TypeInstType * ty;
	1231	if ( node->base ) {
	1232	ty = new TypeInstType{
	1233	cv( node ),
	1234	node->name,
	1235	get<TypeDecl>().accept1( node->base ),
	1236	get<Attribute>().acceptL( node->attributes )
	1237	};
	1238	} else {
	1239	ty = new TypeInstType{
	1240	cv( node ),
	1241	node->name,
	1242	node->kind == ast::TypeVar::Ftype,
	1243	get<Attribute>().acceptL( node->attributes )
	1244	};
	1245	}
	1246	postvisit( node, ty );
	1247	this->node = ty;
[74dbbf6]	1248	return nullptr;
	1249	}
	1250
	1251	const ast::Type * visit( const ast::TupleType * node ) override final {
[746ae82]	1252	this->node = new TupleType{
	1253	cv( node ),
	1254	get<Type>().acceptL( node->types )
	1255	// members generated by TupleType c'tor
	1256	};
[74dbbf6]	1257	return nullptr;
	1258	}
	1259
	1260	const ast::Type * visit( const ast::TypeofType * node ) override final {
[746ae82]	1261	this->node = new TypeofType{
	1262	cv( node ),
	1263	get<Expression>().accept1( node->expr ),
	1264	(bool)node->kind
	1265	};
[74dbbf6]	1266	return nullptr;
	1267	}
	1268
	1269	const ast::Type * visit( const ast::VarArgsType * node ) override final {
[746ae82]	1270	this->node = new VarArgsType{ cv( node ) };
[74dbbf6]	1271	return nullptr;
	1272	}
	1273
	1274	const ast::Type * visit( const ast::ZeroType * node ) override final {
[746ae82]	1275	this->node = new ZeroType{ cv( node ) };
[74dbbf6]	1276	return nullptr;
	1277	}
	1278
	1279	const ast::Type * visit( const ast::OneType * node ) override final {
[746ae82]	1280	this->node = new OneType{ cv( node ) };
[74dbbf6]	1281	return nullptr;
	1282	}
	1283
[746ae82]	1284	const ast::Type * visit( const ast::GlobalScopeType * ) override final {
	1285	this->node = new GlobalScopeType{};
[74dbbf6]	1286	return nullptr;
	1287	}
	1288
	1289	const ast::Designation * visit( const ast::Designation * node ) override final {
[74ad8c0]	1290	auto designation = new Designation( get<Expression>().acceptL( node->designators ) );
	1291	designation->location = node->location;
	1292	this->node = designation;
[74dbbf6]	1293	return nullptr;
	1294	}
	1295
	1296	const ast::Init * visit( const ast::SingleInit * node ) override final {
[74ad8c0]	1297	auto init = new SingleInit(
	1298	get<Expression>().accept1( node->value ),
	1299	ast::MaybeConstruct == node->maybeConstructed
	1300	);
	1301	init->location = node->location;
	1302	this->node = init;
[74dbbf6]	1303	return nullptr;
	1304	}
	1305
	1306	const ast::Init * visit( const ast::ListInit * node ) override final {
[74ad8c0]	1307	auto init = new ListInit(
	1308	get<Initializer>().acceptL( node->initializers ),
	1309	get<Designation>().acceptL( node->designations ),
	1310	ast::MaybeConstruct == node->maybeConstructed
	1311	);
	1312	init->location = node->location;
	1313	this->node = init;
[74dbbf6]	1314	return nullptr;
	1315	}
	1316
	1317	const ast::Init * visit( const ast::ConstructorInit * node ) override final {
[74ad8c0]	1318	auto init = new ConstructorInit(
	1319	get<Statement>().accept1( node->ctor ),
	1320	get<Statement>().accept1( node->dtor ),
	1321	get<Initializer>().accept1( node->init )
	1322	);
	1323	init->location = node->location;
	1324	this->node = init;
[74dbbf6]	1325	return nullptr;
	1326	}
	1327
	1328	const ast::Attribute * visit( const ast::Attribute * node ) override final {
[dd6d7c6]	1329	auto attr = new Attribute(
	1330	node->name,
[489bacf]	1331	get<Expression>().acceptL(node->params)
[dd6d7c6]	1332	);
	1333	this->node = attr;
[74dbbf6]	1334	return nullptr;
	1335	}
	1336
	1337	const ast::TypeSubstitution * visit( const ast::TypeSubstitution * node ) override final {
[dd6d7c6]	1338	// Handled by convertTypeSubstitution helper instead.
	1339	// TypeSubstitution is not a node in the old model, so the conversion result wouldn't fit in this->node.
	1340	assert( 0 );
[0b57626]	1341	(void)node;
[74dbbf6]	1342	return nullptr;
	1343	}
[6d51bd7]	1344	};
	1345
[8abee136]	1346	std::list< Declaration * > convert( const std::list< ast::ptr< ast::Decl > > && translationUnit ) {
[74dbbf6]	1347	ConverterNewToOld c;
	1348	std::list< Declaration * > decls;
	1349	for(auto d : translationUnit) {
[675d816]	1350	decls.emplace_back( c.decl( d ) );
[74dbbf6]	1351	}
	1352	return decls;
[6d51bd7]	1353	}
	1354
	1355	//================================================================================================
	1356
	1357	class ConverterOldToNew : public Visitor {
	1358	public:
	1359	ast::Decl * decl() {
	1360	return strict_dynamic_cast< ast::Decl * >( node );
	1361	}
[546e712]	1362
	1363	ConverterOldToNew() = default;
	1364	ConverterOldToNew(const ConverterOldToNew &) = delete;
	1365	ConverterOldToNew(ConverterOldToNew &&) = delete;
[6d51bd7]	1366	private:
[d148778]	1367	/// conversion output
[546e712]	1368	ast::Node * node = nullptr;
[d148778]	1369	/// cache of nodes that might be referenced by readonly<> for de-duplication
[546e712]	1370	std::unordered_map< BaseSyntaxNode , ast::Node > cache = {};
[6d51bd7]	1371
[6f8e87d]	1372	// Local Utilities:
	1373
	1374	template<typename NewT, typename OldT>
	1375	NewT * getAccept1( OldT old ) {
[d148778]	1376	if ( ! old ) return nullptr;
[6f8e87d]	1377	old->accept(*this);
[2c04369]	1378	ast::Node * ret = node;
	1379	node = nullptr;
	1380	return strict_dynamic_cast< NewT * >( ret );
[6f8e87d]	1381	}
	1382
	1383	# define GET_ACCEPT_1(child, type) \
	1384	getAccept1< ast::type, decltype( old->child ) >( old->child )
	1385
	1386	template<typename NewT, typename OldC>
[a62749f]	1387	std::vector< ast::ptr<NewT> > getAcceptV( const OldC& old ) {
[6f8e87d]	1388	std::vector< ast::ptr<NewT> > ret;
	1389	ret.reserve( old.size() );
	1390	for ( auto a : old ) {
	1391	a->accept( *this );
	1392	ret.emplace_back( strict_dynamic_cast< NewT * >(node) );
[2c04369]	1393	node = nullptr;
[6f8e87d]	1394	}
	1395	return ret;
	1396	}
	1397
	1398	# define GET_ACCEPT_V(child, type) \
	1399	getAcceptV< ast::type, decltype( old->child ) >( old->child )
[6355ba7]	1400
[60aaa51d]	1401	template<typename NewT, typename OldC>
[a62749f]	1402	std::deque< ast::ptr<NewT> > getAcceptD( const OldC& old ) {
[60aaa51d]	1403	std::deque< ast::ptr<NewT> > ret;
	1404	for ( auto a : old ) {
	1405	a->accept( *this );
	1406	ret.emplace_back( strict_dynamic_cast< NewT * >(node) );
	1407	node = nullptr;
	1408	}
	1409	return ret;
	1410	}
	1411
	1412	# define GET_ACCEPT_D(child, type) \
	1413	getAcceptD< ast::type, decltype( old->child ) >( old->child )
[6f8e87d]	1414
[a62749f]	1415	ast::Label make_label(const Label* old) {
	1416	CodeLocation const & location =
	1417	( old->labelled ) ? old->labelled->location : CodeLocation();
[6f8e87d]	1418	return ast::Label(
[a62749f]	1419	location,
[6f8e87d]	1420	old->name,
	1421	GET_ACCEPT_V(attributes, Attribute)
	1422	);
	1423	}
	1424
[6d51bd7]	1425	template<template <class...> class C>
	1426	C<ast::Label> make_labels(C<Label> olds) {
	1427	C<ast::Label> ret;
[6f8e87d]	1428	for (auto oldn : olds) {
	1429	ret.push_back( make_label( &oldn ) );
[6d51bd7]	1430	}
	1431	return ret;
	1432	}
	1433
[6f8e87d]	1434	# define GET_LABELS_V(labels) \
	1435	to<std::vector>::from( make_labels( std::move( labels ) ) )
[0b57626]	1436
[d148778]	1437	static ast::CV::Qualifiers cv( Type * ty ) { return { ty->get_qualifiers().val }; }
	1438
[b869ec5]	1439	/// returns true and sets `node` if in cache
	1440	bool inCache( BaseSyntaxNode * old ) {
[d148778]	1441	auto it = cache.find( old );
[b869ec5]	1442	if ( it == cache.end() ) return false;
	1443	node = it->second;
	1444	return true;
[d148778]	1445	}
[6f8e87d]	1446
	1447	// Now all the visit functions:
	1448
[6d51bd7]	1449	virtual void visit( ObjectDecl * old ) override final {
[546e712]	1450	auto&& type = GET_ACCEPT_1(type, Type);
	1451	auto&& init = GET_ACCEPT_1(init, Init);
	1452	auto&& bfwd = GET_ACCEPT_1(bitfieldWidth, Expr);
	1453	auto&& attr = GET_ACCEPT_V(attributes, Attribute);
	1454	if ( inCache( old ) ) {
	1455	return;
	1456	}
[6d51bd7]	1457	auto decl = new ast::ObjectDecl(
	1458	old->location,
	1459	old->name,
[546e712]	1460	type,
	1461	init,
[6d51bd7]	1462	{ old->get_storageClasses().val },
	1463	{ old->linkage.val },
[546e712]	1464	bfwd,
	1465	std::move(attr),
[6d51bd7]	1466	{ old->get_funcSpec().val }
	1467	);
[546e712]	1468	cache.emplace(old, decl);
	1469	assert(cache.find( old ) != cache.end());
[6d51bd7]	1470	decl->scopeLevel = old->scopeLevel;
	1471	decl->mangleName = old->mangleName;
	1472	decl->isDeleted = old->isDeleted;
[e6faef4]	1473	decl->asmName = GET_ACCEPT_1(asmName, Expr);
[6d51bd7]	1474	decl->uniqueId = old->uniqueId;
	1475	decl->extension = old->extension;
	1476
	1477	this->node = decl;
	1478	}
	1479
[b869ec5]	1480	virtual void visit( FunctionDecl * old ) override final {
	1481	if ( inCache( old ) ) return;
[9a0cd9c]	1482	auto decl = new ast::FunctionDecl{
	1483	old->location,
	1484	old->name,
	1485	GET_ACCEPT_1(type, FunctionType),
[d88f8b3b]	1486	{},
[9a0cd9c]	1487	{ old->storageClasses.val },
	1488	{ old->linkage.val },
	1489	GET_ACCEPT_V(attributes, Attribute),
	1490	{ old->get_funcSpec().val }
	1491	};
[8abee136]	1492	cache.emplace( old, decl );
[d76c588]	1493	decl->withExprs = GET_ACCEPT_V(withExprs, Expr);
[d88f8b3b]	1494	decl->stmts = GET_ACCEPT_1(statements, CompoundStmt);
[9a0cd9c]	1495	decl->scopeLevel = old->scopeLevel;
	1496	decl->mangleName = old->mangleName;
	1497	decl->isDeleted = old->isDeleted;
[e6faef4]	1498	decl->asmName = GET_ACCEPT_1(asmName, Expr);
[9a0cd9c]	1499	decl->uniqueId = old->uniqueId;
	1500	decl->extension = old->extension;
	1501
	1502	this->node = decl;
[157a816]	1503
[0aedb01]	1504	if ( Validate::dereferenceOperator == old ) {
[157a816]	1505	dereferenceOperator = decl;
	1506	}
[043a5b6]	1507
	1508	if ( Validate::dtorStructDestroy == old ) {
	1509	dtorStructDestroy = decl;
	1510	}
[6d51bd7]	1511	}
	1512
	1513	virtual void visit( StructDecl * old ) override final {
[b869ec5]	1514	if ( inCache( old ) ) return;
[6d51bd7]	1515	auto decl = new ast::StructDecl(
	1516	old->location,
	1517	old->name,
	1518	old->kind,
[d66e7b7]	1519	GET_ACCEPT_V(attributes, Attribute),
[6d51bd7]	1520	{ old->linkage.val }
	1521	);
[8abee136]	1522	cache.emplace( old, decl );
[d66e7b7]	1523	decl->parent = GET_ACCEPT_1(parent, AggregateDecl);
[6d51bd7]	1524	decl->body = old->body;
[d66e7b7]	1525	decl->params = GET_ACCEPT_V(parameters, TypeDecl);
	1526	decl->members = GET_ACCEPT_V(members, Decl);
[6d51bd7]	1527	decl->extension = old->extension;
	1528	decl->uniqueId = old->uniqueId;
	1529	decl->storage = { old->storageClasses.val };
	1530
	1531	this->node = decl;
[043a5b6]	1532
	1533	if ( Validate::dtorStruct == old ) {
	1534	dtorStruct = decl;
	1535	}
[6d51bd7]	1536	}
	1537
	1538	virtual void visit( UnionDecl * old ) override final {
[b869ec5]	1539	if ( inCache( old ) ) return;
[6d51bd7]	1540	auto decl = new ast::UnionDecl(
	1541	old->location,
	1542	old->name,
[d66e7b7]	1543	GET_ACCEPT_V(attributes, Attribute),
[6d51bd7]	1544	{ old->linkage.val }
	1545	);
[8abee136]	1546	cache.emplace( old, decl );
[d66e7b7]	1547	decl->parent = GET_ACCEPT_1(parent, AggregateDecl);
[6d51bd7]	1548	decl->body = old->body;
[d66e7b7]	1549	decl->params = GET_ACCEPT_V(parameters, TypeDecl);
	1550	decl->members = GET_ACCEPT_V(members, Decl);
[6d51bd7]	1551	decl->extension = old->extension;
	1552	decl->uniqueId = old->uniqueId;
	1553	decl->storage = { old->storageClasses.val };
	1554
	1555	this->node = decl;
	1556	}
	1557
	1558	virtual void visit( EnumDecl * old ) override final {
[b869ec5]	1559	if ( inCache( old ) ) return;
[157a816]	1560	auto decl = new ast::EnumDecl(
[6d51bd7]	1561	old->location,
	1562	old->name,
[d66e7b7]	1563	GET_ACCEPT_V(attributes, Attribute),
[6d51bd7]	1564	{ old->linkage.val }
	1565	);
[8abee136]	1566	cache.emplace( old, decl );
[d66e7b7]	1567	decl->parent = GET_ACCEPT_1(parent, AggregateDecl);
[6d51bd7]	1568	decl->body = old->body;
[d66e7b7]	1569	decl->params = GET_ACCEPT_V(parameters, TypeDecl);
	1570	decl->members = GET_ACCEPT_V(members, Decl);
[6d51bd7]	1571	decl->extension = old->extension;
	1572	decl->uniqueId = old->uniqueId;
	1573	decl->storage = { old->storageClasses.val };
	1574
	1575	this->node = decl;
	1576	}
	1577
	1578	virtual void visit( TraitDecl * old ) override final {
[b869ec5]	1579	if ( inCache( old ) ) return;
[157a816]	1580	auto decl = new ast::TraitDecl(
[6d51bd7]	1581	old->location,
	1582	old->name,
[d66e7b7]	1583	GET_ACCEPT_V(attributes, Attribute),
[6d51bd7]	1584	{ old->linkage.val }
	1585	);
[8abee136]	1586	cache.emplace( old, decl );
[d66e7b7]	1587	decl->parent = GET_ACCEPT_1(parent, AggregateDecl);
[6d51bd7]	1588	decl->body = old->body;
[d66e7b7]	1589	decl->params = GET_ACCEPT_V(parameters, TypeDecl);
	1590	decl->members = GET_ACCEPT_V(members, Decl);
[6d51bd7]	1591	decl->extension = old->extension;
	1592	decl->uniqueId = old->uniqueId;
	1593	decl->storage = { old->storageClasses.val };
	1594
	1595	this->node = decl;
	1596	}
	1597
[b869ec5]	1598	virtual void visit( TypeDecl * old ) override final {
[0b57626]	1599	if ( inCache( old ) ) return;
[9a0cd9c]	1600	auto decl = new ast::TypeDecl{
	1601	old->location,
	1602	old->name,
	1603	{ old->storageClasses.val },
	1604	GET_ACCEPT_1(base, Type),
	1605	(ast::TypeVar::Kind)(unsigned)old->kind,
	1606	old->sized,
	1607	GET_ACCEPT_1(init, Type)
	1608	};
[8abee136]	1609	cache.emplace( old, decl );
[9a0cd9c]	1610	decl->assertions = GET_ACCEPT_V(assertions, DeclWithType);
	1611	decl->params = GET_ACCEPT_V(parameters, TypeDecl);
	1612	decl->extension = old->extension;
	1613	decl->uniqueId = old->uniqueId;
	1614
	1615	this->node = decl;
[6d51bd7]	1616	}
	1617
	1618	virtual void visit( TypedefDecl * old ) override final {
	1619	auto decl = new ast::TypedefDecl(
	1620	old->location,
	1621	old->name,
	1622	{ old->storageClasses.val },
[d66e7b7]	1623	GET_ACCEPT_1(base, Type),
[6d51bd7]	1624	{ old->linkage.val }
	1625	);
[d66e7b7]	1626	decl->assertions = GET_ACCEPT_V(assertions, DeclWithType);
	1627	decl->params = GET_ACCEPT_V(parameters, TypeDecl);
[6d51bd7]	1628	decl->extension = old->extension;
	1629	decl->uniqueId = old->uniqueId;
	1630	decl->storage = { old->storageClasses.val };
	1631
	1632	this->node = decl;
	1633	}
	1634
[9a0cd9c]	1635	virtual void visit( AsmDecl * old ) override final {
	1636	auto decl = new ast::AsmDecl{
[0b57626]	1637	old->location,
[9a0cd9c]	1638	GET_ACCEPT_1(stmt, AsmStmt)
	1639	};
	1640	decl->extension = old->extension;
	1641	decl->uniqueId = old->uniqueId;
	1642	decl->storage = { old->storageClasses.val };
[6d51bd7]	1643
[9a0cd9c]	1644	this->node = decl;
[6d51bd7]	1645	}
	1646
[9a0cd9c]	1647	virtual void visit( StaticAssertDecl * old ) override final {
	1648	auto decl = new ast::StaticAssertDecl{
	1649	old->location,
	1650	GET_ACCEPT_1(condition, Expr),
	1651	GET_ACCEPT_1(message, ConstantExpr)
	1652	};
	1653	decl->extension = old->extension;
	1654	decl->uniqueId = old->uniqueId;
	1655	decl->storage = { old->storageClasses.val };
[6d51bd7]	1656
[9a0cd9c]	1657	this->node = decl;
[6d51bd7]	1658	}
	1659
	1660	virtual void visit( CompoundStmt * old ) override final {
[4073b16]	1661	if ( inCache( old ) ) return;
[6d51bd7]	1662	auto stmt = new ast::CompoundStmt(
	1663	old->location,
[d66e7b7]	1664	to<std::list>::from( GET_ACCEPT_V(kids, Stmt) ),
	1665	GET_LABELS_V(old->labels)
[6d51bd7]	1666	);
	1667
	1668	this->node = stmt;
[4073b16]	1669	cache.emplace( old, this->node );
[6d51bd7]	1670	}
	1671
	1672	virtual void visit( ExprStmt * old ) override final {
[4073b16]	1673	if ( inCache( old ) ) return;
[6f8e87d]	1674	this->node = new ast::ExprStmt(
[6d51bd7]	1675	old->location,
[6f8e87d]	1676	GET_ACCEPT_1(expr, Expr),
	1677	GET_LABELS_V(old->labels)
[6d51bd7]	1678	);
[4073b16]	1679	cache.emplace( old, this->node );
[6d51bd7]	1680	}
	1681
[6f8e87d]	1682	virtual void visit( AsmStmt * old ) override final {
[4073b16]	1683	if ( inCache( old ) ) return;
[6f8e87d]	1684	this->node = new ast::AsmStmt(
	1685	old->location,
	1686	old->voltile,
	1687	GET_ACCEPT_1(instruction, Expr),
	1688	GET_ACCEPT_V(output, Expr),
	1689	GET_ACCEPT_V(input, Expr),
	1690	GET_ACCEPT_V(clobber, ConstantExpr),
	1691	GET_LABELS_V(old->gotolabels),
	1692	GET_LABELS_V(old->labels)
	1693	);
[4073b16]	1694	cache.emplace( old, this->node );
[6d51bd7]	1695	}
	1696
[6f8e87d]	1697	virtual void visit( DirectiveStmt * old ) override final {
[4073b16]	1698	if ( inCache( old ) ) return;
[6f8e87d]	1699	this->node = new ast::DirectiveStmt(
	1700	old->location,
	1701	old->directive,
	1702	GET_LABELS_V(old->labels)
	1703	);
[4073b16]	1704	cache.emplace( old, this->node );
[6d51bd7]	1705	}
	1706
[6f8e87d]	1707	virtual void visit( IfStmt * old ) override final {
[4073b16]	1708	if ( inCache( old ) ) return;
[6f8e87d]	1709	this->node = new ast::IfStmt(
	1710	old->location,
	1711	GET_ACCEPT_1(condition, Expr),
	1712	GET_ACCEPT_1(thenPart, Stmt),
	1713	GET_ACCEPT_1(elsePart, Stmt),
	1714	GET_ACCEPT_V(initialization, Stmt),
	1715	GET_LABELS_V(old->labels)
	1716	);
[4073b16]	1717	cache.emplace( old, this->node );
[6d51bd7]	1718	}
	1719
[6f8e87d]	1720	virtual void visit( SwitchStmt * old ) override final {
[4073b16]	1721	if ( inCache( old ) ) return;
[6f8e87d]	1722	this->node = new ast::SwitchStmt(
	1723	old->location,
	1724	GET_ACCEPT_1(condition, Expr),
	1725	GET_ACCEPT_V(statements, Stmt),
	1726	GET_LABELS_V(old->labels)
	1727	);
[4073b16]	1728	cache.emplace( old, this->node );
[6d51bd7]	1729	}
	1730
[6f8e87d]	1731	virtual void visit( CaseStmt * old ) override final {
[4073b16]	1732	if ( inCache( old ) ) return;
[6f8e87d]	1733	this->node = new ast::CaseStmt(
	1734	old->location,
	1735	GET_ACCEPT_1(condition, Expr),
	1736	GET_ACCEPT_V(stmts, Stmt),
	1737	GET_LABELS_V(old->labels)
	1738	);
[4073b16]	1739	cache.emplace( old, this->node );
[6d51bd7]	1740	}
	1741
[6f8e87d]	1742	virtual void visit( WhileStmt * old ) override final {
[4073b16]	1743	if ( inCache( old ) ) return;
[6f8e87d]	1744	this->node = new ast::WhileStmt(
	1745	old->location,
	1746	GET_ACCEPT_1(condition, Expr),
	1747	GET_ACCEPT_1(body, Stmt),
	1748	GET_ACCEPT_V(initialization, Stmt),
	1749	old->isDoWhile,
	1750	GET_LABELS_V(old->labels)
	1751	);
[4073b16]	1752	cache.emplace( old, this->node );
[6d51bd7]	1753	}
	1754
[6f8e87d]	1755	virtual void visit( ForStmt * old ) override final {
[4073b16]	1756	if ( inCache( old ) ) return;
[6f8e87d]	1757	this->node = new ast::ForStmt(
	1758	old->location,
	1759	GET_ACCEPT_V(initialization, Stmt),
	1760	GET_ACCEPT_1(condition, Expr),
	1761	GET_ACCEPT_1(increment, Expr),
	1762	GET_ACCEPT_1(body, Stmt),
	1763	GET_LABELS_V(old->labels)
	1764	);
[4073b16]	1765	cache.emplace( old, this->node );
[6d51bd7]	1766	}
	1767
[6f8e87d]	1768	virtual void visit( BranchStmt * old ) override final {
[4073b16]	1769	if ( inCache( old ) ) return;
[6f8e87d]	1770	if (old->computedTarget) {
	1771	this->node = new ast::BranchStmt(
	1772	old->location,
	1773	GET_ACCEPT_1(computedTarget, Expr),
	1774	GET_LABELS_V(old->labels)
	1775	);
	1776	} else {
	1777	ast::BranchStmt::Kind kind;
	1778	switch (old->type) {
	1779	#define CASE(n) \
	1780	case BranchStmt::n: \
	1781	kind = ast::BranchStmt::n; \
	1782	break
	1783	CASE(Goto);
	1784	CASE(Break);
	1785	CASE(Continue);
	1786	CASE(FallThrough);
	1787	CASE(FallThroughDefault);
	1788	#undef CASE
[d66e7b7]	1789	default:
	1790	assertf(false, "Invalid BranchStmt::Type %d\n", old->type);
[6f8e87d]	1791	}
	1792
	1793	auto stmt = new ast::BranchStmt(
	1794	old->location,
	1795	kind,
[a62749f]	1796	make_label(&old->originalTarget),
[6f8e87d]	1797	GET_LABELS_V(old->labels)
	1798	);
	1799	stmt->target = make_label(&old->target);
	1800	this->node = stmt;
	1801	}
[4073b16]	1802	cache.emplace( old, this->node );
[6d51bd7]	1803	}
	1804
[6f8e87d]	1805	virtual void visit( ReturnStmt * old ) override final {
[4073b16]	1806	if ( inCache( old ) ) return;
[6f8e87d]	1807	this->node = new ast::ReturnStmt(
	1808	old->location,
	1809	GET_ACCEPT_1(expr, Expr),
	1810	GET_LABELS_V(old->labels)
	1811	);
[4073b16]	1812	cache.emplace( old, this->node );
[6d51bd7]	1813	}
	1814
[6f8e87d]	1815	virtual void visit( ThrowStmt * old ) override final {
[4073b16]	1816	if ( inCache( old ) ) return;
[6f4b7f2]	1817	ast::ExceptionKind kind;
[6f8e87d]	1818	switch (old->kind) {
	1819	case ThrowStmt::Terminate:
[6f4b7f2]	1820	kind = ast::ExceptionKind::Terminate;
[6f8e87d]	1821	break;
	1822	case ThrowStmt::Resume:
[6f4b7f2]	1823	kind = ast::ExceptionKind::Resume;
[6f8e87d]	1824	break;
[d66e7b7]	1825	default:
	1826	assertf(false, "Invalid ThrowStmt::Kind %d\n", old->kind);
[6f8e87d]	1827	}
[6d51bd7]	1828
[6f8e87d]	1829	this->node = new ast::ThrowStmt(
	1830	old->location,
	1831	kind,
	1832	GET_ACCEPT_1(expr, Expr),
	1833	GET_ACCEPT_1(target, Expr),
	1834	GET_LABELS_V(old->labels)
	1835	);
[4073b16]	1836	cache.emplace( old, this->node );
[6d51bd7]	1837	}
	1838
[6f8e87d]	1839	virtual void visit( TryStmt * old ) override final {
[4073b16]	1840	if ( inCache( old ) ) return;
[6f8e87d]	1841	this->node = new ast::TryStmt(
	1842	old->location,
	1843	GET_ACCEPT_1(block, CompoundStmt),
	1844	GET_ACCEPT_V(handlers, CatchStmt),
	1845	GET_ACCEPT_1(finallyBlock, FinallyStmt),
	1846	GET_LABELS_V(old->labels)
	1847	);
[4073b16]	1848	cache.emplace( old, this->node );
[6d51bd7]	1849	}
	1850
[6f8e87d]	1851	virtual void visit( CatchStmt * old ) override final {
[4073b16]	1852	if ( inCache( old ) ) return;
[6f4b7f2]	1853	ast::ExceptionKind kind;
[6f8e87d]	1854	switch (old->kind) {
	1855	case CatchStmt::Terminate:
[6f4b7f2]	1856	kind = ast::ExceptionKind::Terminate;
[6f8e87d]	1857	break;
	1858	case CatchStmt::Resume:
[6f4b7f2]	1859	kind = ast::ExceptionKind::Resume;
[6f8e87d]	1860	break;
[d66e7b7]	1861	default:
	1862	assertf(false, "Invalid CatchStmt::Kind %d\n", old->kind);
[6f8e87d]	1863	}
[6d51bd7]	1864
[6f8e87d]	1865	this->node = new ast::CatchStmt(
	1866	old->location,
	1867	kind,
	1868	GET_ACCEPT_1(decl, Decl),
	1869	GET_ACCEPT_1(cond, Expr),
	1870	GET_ACCEPT_1(body, Stmt),
	1871	GET_LABELS_V(old->labels)
	1872	);
[4073b16]	1873	cache.emplace( old, this->node );
[6d51bd7]	1874	}
	1875
[6f8e87d]	1876	virtual void visit( FinallyStmt * old ) override final {
[4073b16]	1877	if ( inCache( old ) ) return;
[6f8e87d]	1878	this->node = new ast::FinallyStmt(
	1879	old->location,
	1880	GET_ACCEPT_1(block, CompoundStmt),
	1881	GET_LABELS_V(old->labels)
	1882	);
[4073b16]	1883	cache.emplace( old, this->node );
[6d51bd7]	1884	}
	1885
[6f8e87d]	1886	virtual void visit( WaitForStmt * old ) override final {
[4073b16]	1887	if ( inCache( old ) ) return;
[6f8e87d]	1888	ast::WaitForStmt * stmt = new ast::WaitForStmt(
	1889	old->location,
	1890	GET_LABELS_V(old->labels)
	1891	);
[6d51bd7]	1892
[6f8e87d]	1893	stmt->clauses.reserve( old->clauses.size() );
	1894	for (size_t i = 0 ; i < old->clauses.size() ; ++i) {
	1895	stmt->clauses.push_back({
	1896	ast::WaitForStmt::Target{
	1897	GET_ACCEPT_1(clauses[i].target.function, Expr),
	1898	GET_ACCEPT_V(clauses[i].target.arguments, Expr)
	1899	},
	1900	GET_ACCEPT_1(clauses[i].statement, Stmt),
	1901	GET_ACCEPT_1(clauses[i].condition, Expr)
	1902	});
	1903	}
	1904	stmt->timeout = {
	1905	GET_ACCEPT_1(timeout.time, Expr),
	1906	GET_ACCEPT_1(timeout.statement, Stmt),
	1907	GET_ACCEPT_1(timeout.condition, Expr),
	1908	};
	1909	stmt->orElse = {
	1910	GET_ACCEPT_1(timeout.statement, Stmt),
	1911	GET_ACCEPT_1(timeout.condition, Expr),
	1912	};
[6d51bd7]	1913
[6f8e87d]	1914	this->node = stmt;
[4073b16]	1915	cache.emplace( old, this->node );
[6f8e87d]	1916	}
[6d51bd7]	1917
[6f8e87d]	1918	virtual void visit( WithStmt * old ) override final {
[4073b16]	1919	if ( inCache( old ) ) return;
[6f8e87d]	1920	this->node = new ast::WithStmt(
	1921	old->location,
	1922	GET_ACCEPT_V(exprs, Expr),
	1923	GET_ACCEPT_1(stmt, Stmt),
	1924	GET_LABELS_V(old->labels)
	1925	);
[4073b16]	1926	cache.emplace( old, this->node );
[6d51bd7]	1927	}
	1928
	1929	virtual void visit( NullStmt * old ) override final {
[4073b16]	1930	if ( inCache( old ) ) return;
[6f8e87d]	1931	this->node = new ast::NullStmt(
[6d51bd7]	1932	old->location,
[6f8e87d]	1933	GET_LABELS_V(old->labels)
[6d51bd7]	1934	);
[4073b16]	1935	cache.emplace( old, this->node );
[6d51bd7]	1936	}
	1937
[6f8e87d]	1938	virtual void visit( DeclStmt * old ) override final {
[4073b16]	1939	if ( inCache( old ) ) return;
[6f8e87d]	1940	this->node = new ast::DeclStmt(
	1941	old->location,
	1942	GET_ACCEPT_1(decl, Decl),
	1943	GET_LABELS_V(old->labels)
	1944	);
[4073b16]	1945	cache.emplace( old, this->node );
[6d51bd7]	1946	}
	1947
[6f8e87d]	1948	virtual void visit( ImplicitCtorDtorStmt * old ) override final {
[4073b16]	1949	if ( inCache( old ) ) return;
[f685679]	1950	auto stmt = new ast::ImplicitCtorDtorStmt(
[6f8e87d]	1951	old->location,
[f685679]	1952	nullptr,
[6f8e87d]	1953	GET_LABELS_V(old->labels)
	1954	);
[2c04369]	1955	cache.emplace( old, stmt );
[f685679]	1956	stmt->callStmt = GET_ACCEPT_1(callStmt, Stmt);
[2c04369]	1957	this->node = stmt;
[6d51bd7]	1958	}
	1959
[172d9342]	1960	ast::TypeSubstitution * convertTypeSubstitution(const TypeSubstitution * old) {
	1961
[8abee136]	1962	if (!old) return nullptr;
	1963
[172d9342]	1964	ast::TypeSubstitution *rslt = new ast::TypeSubstitution();
	1965
	1966	for (decltype(old->begin()) old_i = old->begin(); old_i != old->end(); old_i++) {
	1967	rslt->add( old_i->first,
	1968	getAccept1<ast::Type>(old_i->second) );
	1969	}
[6d51bd7]	1970
[172d9342]	1971	for (decltype(old->beginVar()) old_i = old->beginVar(); old_i != old->endVar(); old_i++) {
	1972	rslt->addVar( old_i->first,
	1973	getAccept1<ast::Expr>(old_i->second) );
	1974	}
[19e567dd]	1975
	1976	return rslt;
[6d51bd7]	1977	}
	1978
[e0016a5]	1979	void convertInferUnion(ast::Expr::InferUnion &newInferred,
[19e567dd]	1980	const std::map<UniqueId,ParamEntry> &oldInferParams,
	1981	const std::vector<UniqueId> &oldResnSlots) {
	1982
	1983	assert( oldInferParams.empty() \|\| oldResnSlots.empty() );
	1984	assert( newInferred.mode == ast::Expr::InferUnion::Empty );
	1985
	1986	if ( !oldInferParams.empty() ) {
	1987	ast::InferredParams &tgt = newInferred.inferParams();
[8b34df0]	1988	for (auto & old : oldInferParams) {
[19e567dd]	1989	tgt[old.first] = ast::ParamEntry(
	1990	old.second.decl,
[aaeacf4]	1991	getAccept1<ast::Decl>(old.second.declptr),
[19e567dd]	1992	getAccept1<ast::Type>(old.second.actualType),
	1993	getAccept1<ast::Type>(old.second.formalType),
	1994	getAccept1<ast::Expr>(old.second.expr)
	1995	);
	1996	}
	1997	} else if ( !oldResnSlots.empty() ) {
	1998	ast::ResnSlots &tgt = newInferred.resnSlots();
	1999	for (auto old : oldResnSlots) {
	2000	tgt.push_back(old);
	2001	}
	2002	}
[172d9342]	2003	}
	2004
[20de6fb]	2005	ast::Expr * visitBaseExpr_SkipResultType(Expression * old, ast::Expr * nw) {
[6d51bd7]	2006
[172d9342]	2007	nw->env = convertTypeSubstitution(old->env);
	2008
	2009	nw->extension = old->extension;
	2010	convertInferUnion(nw->inferred, old->inferParams, old->resnSlots);
	2011
	2012	return nw;
	2013	}
[6d51bd7]	2014
[20de6fb]	2015	ast::Expr * visitBaseExpr(Expression * old, ast::Expr * nw) {
	2016
	2017	nw->result = GET_ACCEPT_1(result, Type);
	2018	return visitBaseExpr_SkipResultType(old, nw);;
	2019	}
	2020
[19e567dd]	2021	virtual void visit( ApplicationExpr * old ) override final {
	2022	this->node = visitBaseExpr( old,
	2023	new ast::ApplicationExpr(
	2024	old->location,
	2025	GET_ACCEPT_1(function, Expr),
	2026	GET_ACCEPT_V(args, Expr)
	2027	)
	2028	);
[6d51bd7]	2029	}
	2030
[19e567dd]	2031	virtual void visit( UntypedExpr * old ) override final {
	2032	this->node = visitBaseExpr( old,
	2033	new ast::UntypedExpr(
	2034	old->location,
	2035	GET_ACCEPT_1(function, Expr),
	2036	GET_ACCEPT_V(args, Expr)
	2037	)
	2038	);
[172d9342]	2039	}
[6d51bd7]	2040
[172d9342]	2041	virtual void visit( NameExpr * old ) override final {
	2042	this->node = visitBaseExpr( old,
	2043	new ast::NameExpr(
	2044	old->location,
	2045	old->get_name()
	2046	)
	2047	);
[6d51bd7]	2048	}
	2049
[19e567dd]	2050	virtual void visit( CastExpr * old ) override final {
	2051	this->node = visitBaseExpr( old,
	2052	new ast::CastExpr(
	2053	old->location,
[28c89f4]	2054	GET_ACCEPT_1(arg, Expr),
[19e567dd]	2055	old->isGenerated ? ast::GeneratedCast : ast::ExplicitCast
	2056	)
	2057	);
[6d51bd7]	2058	}
	2059
[28c89f4]	2060	virtual void visit( KeywordCastExpr * old) override final {
	2061	ast::KeywordCastExpr::Target castTarget = ast::KeywordCastExpr::NUMBER_OF_TARGETS;
	2062	switch (old->target) {
	2063	case KeywordCastExpr::Coroutine:
	2064	castTarget = ast::KeywordCastExpr::Coroutine;
	2065	break;
	2066	case KeywordCastExpr::Thread:
	2067	castTarget = ast::KeywordCastExpr::Thread;
	2068	break;
	2069	case KeywordCastExpr::Monitor:
	2070	castTarget = ast::KeywordCastExpr::Monitor;
	2071	break;
	2072	default:
	2073	break;
	2074	}
	2075	assert ( castTarget < ast::KeywordCastExpr::NUMBER_OF_TARGETS );
	2076	this->node = visitBaseExpr( old,
	2077	new ast::KeywordCastExpr(
	2078	old->location,
	2079	GET_ACCEPT_1(arg, Expr),
	2080	castTarget
	2081	)
	2082	);
[6d51bd7]	2083	}
	2084
[28c89f4]	2085	virtual void visit( VirtualCastExpr * old ) override final {
[20de6fb]	2086	this->node = visitBaseExpr_SkipResultType( old,
[28c89f4]	2087	new ast::VirtualCastExpr(
	2088	old->location,
	2089	GET_ACCEPT_1(arg, Expr),
[20de6fb]	2090	GET_ACCEPT_1(result, Type)
[28c89f4]	2091	)
	2092	);
[6d51bd7]	2093	}
	2094
[28c89f4]	2095	virtual void visit( AddressExpr * old ) override final {
	2096	this->node = visitBaseExpr( old,
	2097	new ast::AddressExpr(
	2098	old->location,
	2099	GET_ACCEPT_1(arg, Expr)
	2100	)
	2101	);
[6d51bd7]	2102	}
	2103
[28c89f4]	2104	virtual void visit( LabelAddressExpr * old ) override final {
	2105	this->node = visitBaseExpr( old,
	2106	new ast::LabelAddressExpr(
	2107	old->location,
	2108	make_label(&old->arg)
	2109	)
	2110	);
[6d51bd7]	2111	}
	2112
[28c89f4]	2113	virtual void visit( UntypedMemberExpr * old ) override final {
	2114	this->node = visitBaseExpr( old,
	2115	new ast::UntypedMemberExpr(
	2116	old->location,
	2117	GET_ACCEPT_1(member, Expr),
	2118	GET_ACCEPT_1(aggregate, Expr)
	2119	)
	2120	);
[6d51bd7]	2121	}
	2122
[28c89f4]	2123	virtual void visit( MemberExpr * old ) override final {
	2124	this->node = visitBaseExpr( old,
	2125	new ast::MemberExpr(
	2126	old->location,
[2a54479]	2127	GET_ACCEPT_1(member, DeclWithType),
[28c89f4]	2128	GET_ACCEPT_1(aggregate, Expr)
	2129	)
	2130	);
[6d51bd7]	2131	}
	2132
[28c89f4]	2133	virtual void visit( VariableExpr * old ) override final {
[546e712]	2134	auto expr = new ast::VariableExpr(
	2135	old->location
	2136	);
	2137
	2138	expr->var = GET_ACCEPT_1(var, DeclWithType);
[6896548]	2139	visitBaseExpr( old, expr );
[6d51bd7]	2140
[546e712]	2141	this->node = expr;
[6d51bd7]	2142	}
	2143
[28c89f4]	2144	virtual void visit( ConstantExpr * old ) override final {
[c36298d]	2145	ast::ConstantExpr *rslt = new ast::ConstantExpr(
	2146	old->location,
	2147	GET_ACCEPT_1(result, Type),
	2148	old->constant.get_value(),
	2149	old->constant.ival
	2150	);
	2151	rslt->underlyer = getAccept1< ast::Type, Type* >( old->constant.get_type() );
[28c89f4]	2152	this->node = visitBaseExpr( old, rslt );
	2153	}
	2154
	2155	virtual void visit( SizeofExpr * old ) override final {
	2156	assert (old->expr \|\| old->type);
	2157	assert (! (old->expr && old->type));
	2158	ast::SizeofExpr *rslt;
	2159	if (old->expr) {
	2160	assert(!old->isType);
	2161	rslt = new ast::SizeofExpr(
[0b57626]	2162	old->location,
[28c89f4]	2163	GET_ACCEPT_1(expr, Expr)
	2164	);
	2165	}
	2166	if (old->type) {
	2167	assert(old->isType);
	2168	rslt = new ast::SizeofExpr(
[0b57626]	2169	old->location,
[28c89f4]	2170	GET_ACCEPT_1(type, Type)
	2171	);
	2172	}
	2173	this->node = visitBaseExpr( old, rslt );
	2174	}
	2175
	2176	virtual void visit( AlignofExpr * old ) override final {
	2177	assert (old->expr \|\| old->type);
	2178	assert (! (old->expr && old->type));
	2179	ast::AlignofExpr *rslt;
	2180	if (old->expr) {
	2181	assert(!old->isType);
	2182	rslt = new ast::AlignofExpr(
[0b57626]	2183	old->location,
[28c89f4]	2184	GET_ACCEPT_1(expr, Expr)
	2185	);
	2186	}
	2187	if (old->type) {
	2188	assert(old->isType);
	2189	rslt = new ast::AlignofExpr(
[0b57626]	2190	old->location,
[28c89f4]	2191	GET_ACCEPT_1(type, Type)
	2192	);
	2193	}
	2194	this->node = visitBaseExpr( old, rslt );
[6d51bd7]	2195	}
	2196
[28c89f4]	2197	virtual void visit( UntypedOffsetofExpr * old ) override final {
	2198	this->node = visitBaseExpr( old,
	2199	new ast::UntypedOffsetofExpr(
	2200	old->location,
	2201	GET_ACCEPT_1(type, Type),
	2202	old->member
	2203	)
	2204	);
[6d51bd7]	2205	}
	2206
[28c89f4]	2207	virtual void visit( OffsetofExpr * old ) override final {
	2208	this->node = visitBaseExpr( old,
	2209	new ast::OffsetofExpr(
	2210	old->location,
	2211	GET_ACCEPT_1(type, Type),
[2a54479]	2212	GET_ACCEPT_1(member, DeclWithType)
[28c89f4]	2213	)
	2214	);
[6d51bd7]	2215	}
	2216
[28c89f4]	2217	virtual void visit( OffsetPackExpr * old ) override final {
	2218	this->node = visitBaseExpr( old,
	2219	new ast::OffsetPackExpr(
	2220	old->location,
	2221	GET_ACCEPT_1(type, StructInstType)
	2222	)
	2223	);
[6d51bd7]	2224	}
	2225
[28c89f4]	2226	virtual void visit( LogicalExpr * old ) override final {
	2227	this->node = visitBaseExpr( old,
	2228	new ast::LogicalExpr(
	2229	old->location,
	2230	GET_ACCEPT_1(arg1, Expr),
	2231	GET_ACCEPT_1(arg2, Expr),
[0b57626]	2232	old->get_isAnd() ?
[28c89f4]	2233	ast::LogicalFlag::AndExpr :
	2234	ast::LogicalFlag::OrExpr
	2235	)
	2236	);
[6d51bd7]	2237	}
	2238
[28c89f4]	2239	virtual void visit( ConditionalExpr * old ) override final {
	2240	this->node = visitBaseExpr( old,
	2241	new ast::ConditionalExpr(
	2242	old->location,
	2243	GET_ACCEPT_1(arg1, Expr),
	2244	GET_ACCEPT_1(arg2, Expr),
	2245	GET_ACCEPT_1(arg3, Expr)
	2246	)
	2247	);
	2248	}
[6d51bd7]	2249
[28c89f4]	2250	virtual void visit( CommaExpr * old ) override final {
	2251	this->node = visitBaseExpr( old,
	2252	new ast::CommaExpr(
	2253	old->location,
	2254	GET_ACCEPT_1(arg1, Expr),
	2255	GET_ACCEPT_1(arg2, Expr)
	2256	)
	2257	);
[6d51bd7]	2258	}
	2259
[20de6fb]	2260	virtual void visit( TypeExpr * old ) override final {
	2261	this->node = visitBaseExpr( old,
	2262	new ast::TypeExpr(
	2263	old->location,
	2264	GET_ACCEPT_1(type, Type)
	2265	)
	2266	);
[6d51bd7]	2267	}
	2268
[20de6fb]	2269	virtual void visit( AsmExpr * old ) override final {
	2270	this->node = visitBaseExpr( old,
	2271	new ast::AsmExpr(
	2272	old->location,
	2273	GET_ACCEPT_1(inout, Expr),
	2274	GET_ACCEPT_1(constraint, Expr),
	2275	GET_ACCEPT_1(operand, Expr)
	2276	)
	2277	);
[6d51bd7]	2278	}
	2279
[20de6fb]	2280	virtual void visit( ImplicitCopyCtorExpr * old ) override final {
	2281	auto rslt = new ast::ImplicitCopyCtorExpr(
	2282	old->location,
	2283	GET_ACCEPT_1(callExpr, ApplicationExpr)
	2284	);
[6d51bd7]	2285
[20de6fb]	2286	this->node = visitBaseExpr( old, rslt );
[6d51bd7]	2287	}
	2288
[20de6fb]	2289	virtual void visit( ConstructorExpr * old ) override final {
	2290	this->node = visitBaseExpr( old,
	2291	new ast::ConstructorExpr(
	2292	old->location,
	2293	GET_ACCEPT_1(callExpr, Expr)
	2294	)
	2295	);
[6d51bd7]	2296	}
	2297
[20de6fb]	2298	virtual void visit( CompoundLiteralExpr * old ) override final {
	2299	this->node = visitBaseExpr_SkipResultType( old,
	2300	new ast::CompoundLiteralExpr(
	2301	old->location,
	2302	GET_ACCEPT_1(result, Type),
	2303	GET_ACCEPT_1(initializer, Init)
	2304	)
	2305	);
[6d51bd7]	2306	}
	2307
[20de6fb]	2308	virtual void visit( RangeExpr * old ) override final {
	2309	this->node = visitBaseExpr( old,
	2310	new ast::RangeExpr(
	2311	old->location,
	2312	GET_ACCEPT_1(low, Expr),
	2313	GET_ACCEPT_1(high, Expr)
	2314	)
	2315	);
[6d51bd7]	2316	}
	2317
[20de6fb]	2318	virtual void visit( UntypedTupleExpr * old ) override final {
	2319	this->node = visitBaseExpr( old,
	2320	new ast::UntypedTupleExpr(
	2321	old->location,
	2322	GET_ACCEPT_V(exprs, Expr)
	2323	)
	2324	);
[6d51bd7]	2325	}
	2326
[20de6fb]	2327	virtual void visit( TupleExpr * old ) override final {
	2328	this->node = visitBaseExpr( old,
	2329	new ast::TupleExpr(
	2330	old->location,
	2331	GET_ACCEPT_V(exprs, Expr)
	2332	)
	2333	);
[6d51bd7]	2334	}
	2335
[20de6fb]	2336	virtual void visit( TupleIndexExpr * old ) override final {
	2337	this->node = visitBaseExpr( old,
	2338	new ast::TupleIndexExpr(
	2339	old->location,
	2340	GET_ACCEPT_1(tuple, Expr),
	2341	old->index
	2342	)
	2343	);
[6d51bd7]	2344	}
	2345
[20de6fb]	2346	virtual void visit( TupleAssignExpr * old ) override final {
	2347	this->node = visitBaseExpr_SkipResultType( old,
	2348	new ast::TupleAssignExpr(
	2349	old->location,
	2350	GET_ACCEPT_1(result, Type),
	2351	GET_ACCEPT_1(stmtExpr, StmtExpr)
	2352	)
	2353	);
[6d51bd7]	2354	}
	2355
[20de6fb]	2356	virtual void visit( StmtExpr * old ) override final {
	2357	auto rslt = new ast::StmtExpr(
	2358	old->location,
	2359	GET_ACCEPT_1(statements, CompoundStmt)
	2360	);
	2361	rslt->returnDecls = GET_ACCEPT_V(returnDecls, ObjectDecl);
	2362	rslt->dtors = GET_ACCEPT_V(dtors , Expr);
[6d51bd7]	2363
[20de6fb]	2364	this->node = visitBaseExpr_SkipResultType( old, rslt );
[6d51bd7]	2365	}
	2366
[20de6fb]	2367	virtual void visit( UniqueExpr * old ) override final {
	2368	auto rslt = new ast::UniqueExpr(
	2369	old->location,
[a2a85658]	2370	GET_ACCEPT_1(expr, Expr),
	2371	old->get_id()
[20de6fb]	2372	);
	2373	rslt->object = GET_ACCEPT_1(object, ObjectDecl);
	2374	rslt->var = GET_ACCEPT_1(var , VariableExpr);
[6d51bd7]	2375
[20de6fb]	2376	this->node = visitBaseExpr( old, rslt );
[6d51bd7]	2377	}
	2378
[20de6fb]	2379	virtual void visit( UntypedInitExpr * old ) override final {
[60aaa51d]	2380	std::deque<ast::InitAlternative> initAlts;
[20de6fb]	2381	for (auto ia : old->initAlts) {
	2382	initAlts.push_back(ast::InitAlternative(
	2383	getAccept1< ast::Type, Type * >( ia.type ),
	2384	getAccept1< ast::Designation, Designation * >( ia.designation )
	2385	));
	2386	}
	2387	this->node = visitBaseExpr( old,
	2388	new ast::UntypedInitExpr(
	2389	old->location,
	2390	GET_ACCEPT_1(expr, Expr),
	2391	std::move(initAlts)
	2392	)
	2393	);
[6d51bd7]	2394	}
	2395
[20de6fb]	2396	virtual void visit( InitExpr * old ) override final {
	2397	this->node = visitBaseExpr( old,
	2398	new ast::InitExpr(
	2399	old->location,
	2400	GET_ACCEPT_1(expr, Expr),
	2401	GET_ACCEPT_1(designation, Designation)
	2402	)
	2403	);
[6d51bd7]	2404	}
	2405
[20de6fb]	2406	virtual void visit( DeletedExpr * old ) override final {
	2407	this->node = visitBaseExpr( old,
	2408	new ast::DeletedExpr(
	2409	old->location,
	2410	GET_ACCEPT_1(expr, Expr),
	2411	inCache(old->deleteStmt) ?
	2412	this->node :
	2413	GET_ACCEPT_1(deleteStmt, Node)
	2414	)
	2415	);
[6d51bd7]	2416	}
	2417
[20de6fb]	2418	virtual void visit( DefaultArgExpr * old ) override final {
	2419	this->node = visitBaseExpr( old,
	2420	new ast::DefaultArgExpr(
	2421	old->location,
	2422	GET_ACCEPT_1(expr, Expr)
	2423	)
	2424	);
	2425	}
[6d51bd7]	2426
[20de6fb]	2427	virtual void visit( GenericExpr * old ) override final {
	2428	std::vector<ast::GenericExpr::Association> associations;
	2429	for (auto association : old->associations) {
	2430	associations.push_back(ast::GenericExpr::Association(
	2431	getAccept1< ast::Type, Type * >( association.type ),
	2432	getAccept1< ast::Expr, Expression * >( association.expr )
	2433	));
	2434	}
	2435	this->node = visitBaseExpr( old,
	2436	new ast::GenericExpr(
	2437	old->location,
	2438	GET_ACCEPT_1(control, Expr),
	2439	std::move(associations)
	2440	)
	2441	);
[6d51bd7]	2442	}
	2443
[d148778]	2444	virtual void visit( VoidType * old ) override final {
	2445	this->node = new ast::VoidType{ cv( old ) };
[6d51bd7]	2446	}
	2447
[d148778]	2448	virtual void visit( BasicType * old ) override final {
[2a54479]	2449	auto type = new ast::BasicType{ (ast::BasicType::Kind)(unsigned)old->kind, cv( old ) };
	2450	// I believe this should always be a BasicType.
	2451	if ( Validate::SizeType == old ) {
	2452	sizeType = type;
	2453	}
	2454	this->node = type;
[6d51bd7]	2455	}
	2456
[d148778]	2457	virtual void visit( PointerType * old ) override final {
	2458	this->node = new ast::PointerType{
	2459	GET_ACCEPT_1( base, Type ),
	2460	GET_ACCEPT_1( dimension, Expr ),
	2461	(ast::LengthFlag)old->isVarLen,
	2462	(ast::DimensionFlag)old->isStatic,
	2463	cv( old )
	2464	};
[6d51bd7]	2465	}
	2466
[d148778]	2467	virtual void visit( ArrayType * old ) override final {
	2468	this->node = new ast::ArrayType{
	2469	GET_ACCEPT_1( base, Type ),
	2470	GET_ACCEPT_1( dimension, Expr ),
	2471	(ast::LengthFlag)old->isVarLen,
	2472	(ast::DimensionFlag)old->isStatic,
	2473	cv( old )
	2474	};
[6d51bd7]	2475	}
	2476
[d148778]	2477	virtual void visit( ReferenceType * old ) override final {
	2478	this->node = new ast::ReferenceType{
	2479	GET_ACCEPT_1( base, Type ),
	2480	cv( old )
	2481	};
[6d51bd7]	2482	}
	2483
[d148778]	2484	virtual void visit( QualifiedType * old ) override final {
	2485	this->node = new ast::QualifiedType{
	2486	GET_ACCEPT_1( parent, Type ),
	2487	GET_ACCEPT_1( child, Type ),
	2488	cv( old )
	2489	};
[6d51bd7]	2490	}
	2491
[d148778]	2492	virtual void visit( FunctionType * old ) override final {
	2493	auto ty = new ast::FunctionType {
	2494	(ast::ArgumentFlag)old->isVarArgs,
	2495	cv( old )
	2496	};
	2497	ty->returns = GET_ACCEPT_V( returnVals, DeclWithType );
	2498	ty->params = GET_ACCEPT_V( parameters, DeclWithType );
	2499	ty->forall = GET_ACCEPT_V( forall, TypeDecl );
	2500	this->node = ty;
[6d51bd7]	2501	}
	2502
[d148778]	2503	void postvisit( ReferenceToType * old, ast::ReferenceToType * ty ) {
	2504	ty->forall = GET_ACCEPT_V( forall, TypeDecl );
	2505	ty->params = GET_ACCEPT_V( parameters, Expr );
	2506	ty->hoistType = old->hoistType;
[6d51bd7]	2507	}
	2508
[d148778]	2509	virtual void visit( StructInstType * old ) override final {
[b869ec5]	2510	ast::StructInstType * ty;
	2511	if ( old->baseStruct ) {
	2512	ty = new ast::StructInstType{
	2513	GET_ACCEPT_1( baseStruct, StructDecl ),
	2514	cv( old ),
	2515	GET_ACCEPT_V( attributes, Attribute )
	2516	};
	2517	} else {
	2518	ty = new ast::StructInstType{
	2519	old->name,
	2520	cv( old ),
	2521	GET_ACCEPT_V( attributes, Attribute )
	2522	};
	2523	}
[d148778]	2524	postvisit( old, ty );
	2525	this->node = ty;
[6d51bd7]	2526	}
	2527
[d148778]	2528	virtual void visit( UnionInstType * old ) override final {
[b869ec5]	2529	ast::UnionInstType * ty;
	2530	if ( old->baseUnion ) {
	2531	ty = new ast::UnionInstType{
	2532	GET_ACCEPT_1( baseUnion, UnionDecl ),
	2533	cv( old ),
	2534	GET_ACCEPT_V( attributes, Attribute )
	2535	};
	2536	} else {
	2537	ty = new ast::UnionInstType{
	2538	old->name,
	2539	cv( old ),
	2540	GET_ACCEPT_V( attributes, Attribute )
	2541	};
	2542	}
[d148778]	2543	postvisit( old, ty );
	2544	this->node = ty;
[6d51bd7]	2545	}
	2546
[d148778]	2547	virtual void visit( EnumInstType * old ) override final {
[b869ec5]	2548	ast::EnumInstType * ty;
	2549	if ( old->baseEnum ) {
	2550	ty = new ast::EnumInstType{
	2551	GET_ACCEPT_1( baseEnum, EnumDecl ),
	2552	cv( old ),
	2553	GET_ACCEPT_V( attributes, Attribute )
	2554	};
	2555	} else {
	2556	ty = new ast::EnumInstType{
	2557	old->name,
	2558	cv( old ),
	2559	GET_ACCEPT_V( attributes, Attribute )
	2560	};
	2561	}
[d148778]	2562	postvisit( old, ty );
	2563	this->node = ty;
[6d51bd7]	2564	}
	2565
[d148778]	2566	virtual void visit( TraitInstType * old ) override final {
[b869ec5]	2567	ast::TraitInstType * ty;
	2568	if ( old->baseTrait ) {
	2569	ty = new ast::TraitInstType{
	2570	GET_ACCEPT_1( baseTrait, TraitDecl ),
	2571	cv( old ),
	2572	GET_ACCEPT_V( attributes, Attribute )
	2573	};
	2574	} else {
	2575	ty = new ast::TraitInstType{
	2576	old->name,
	2577	cv( old ),
	2578	GET_ACCEPT_V( attributes, Attribute )
	2579	};
	2580	}
[d148778]	2581	postvisit( old, ty );
	2582	this->node = ty;
	2583	}
[6d51bd7]	2584
[d148778]	2585	virtual void visit( TypeInstType * old ) override final {
[514a791]	2586	ast::TypeInstType * ty;
	2587	if ( old->baseType ) {
	2588	ty = new ast::TypeInstType{
	2589	old->name,
[b869ec5]	2590	GET_ACCEPT_1( baseType, TypeDecl ),
[514a791]	2591	cv( old ),
	2592	GET_ACCEPT_V( attributes, Attribute )
	2593	};
	2594	} else {
	2595	ty = new ast::TypeInstType{
	2596	old->name,
	2597	old->isFtype ? ast::TypeVar::Ftype : ast::TypeVar::Dtype,
	2598	cv( old ),
	2599	GET_ACCEPT_V( attributes, Attribute )
	2600	};
	2601	}
[d148778]	2602	postvisit( old, ty );
	2603	this->node = ty;
[6d51bd7]	2604	}
	2605
[746ae82]	2606	virtual void visit( TupleType * old ) override final {
	2607	this->node = new ast::TupleType{
	2608	GET_ACCEPT_V( types, Type ),
	2609	// members generated by TupleType c'tor
	2610	cv( old )
	2611	};
[6d51bd7]	2612	}
	2613
[746ae82]	2614	virtual void visit( TypeofType * old ) override final {
	2615	this->node = new ast::TypeofType{
	2616	GET_ACCEPT_1( expr, Expr ),
	2617	(ast::TypeofType::Kind)old->is_basetypeof,
	2618	cv( old )
	2619	};
[6d51bd7]	2620	}
	2621
	2622	virtual void visit( AttrType * ) override final {
[746ae82]	2623	assertf( false, "AttrType deprecated in new AST." );
[6d51bd7]	2624	}
	2625
[746ae82]	2626	virtual void visit( VarArgsType * old ) override final {
	2627	this->node = new ast::VarArgsType{ cv( old ) };
[6d51bd7]	2628	}
	2629
[746ae82]	2630	virtual void visit( ZeroType * old ) override final {
	2631	this->node = new ast::ZeroType{ cv( old ) };
[6d51bd7]	2632	}
	2633
[746ae82]	2634	virtual void visit( OneType * old ) override final {
	2635	this->node = new ast::OneType{ cv( old ) };
[6d51bd7]	2636	}
	2637
	2638	virtual void visit( GlobalScopeType * ) override final {
[746ae82]	2639	this->node = new ast::GlobalScopeType{};
[6d51bd7]	2640	}
	2641
[74ad8c0]	2642	virtual void visit( Designation * old ) override final {
	2643	this->node = new ast::Designation(
	2644	old->location,
[60aaa51d]	2645	GET_ACCEPT_D(designators, Expr)
[74ad8c0]	2646	);
[6d51bd7]	2647	}
	2648
[74ad8c0]	2649	virtual void visit( SingleInit * old ) override final {
	2650	this->node = new ast::SingleInit(
	2651	old->location,
	2652	GET_ACCEPT_1(value, Expr),
	2653	(old->get_maybeConstructed()) ? ast::MaybeConstruct : ast::DoConstruct
	2654	);
[6d51bd7]	2655	}
	2656
[74ad8c0]	2657	virtual void visit( ListInit * old ) override final {
	2658	this->node = new ast::ListInit(
	2659	old->location,
	2660	GET_ACCEPT_V(initializers, Init),
	2661	GET_ACCEPT_V(designations, Designation),
	2662	(old->get_maybeConstructed()) ? ast::MaybeConstruct : ast::DoConstruct
	2663	);
[6d51bd7]	2664	}
	2665
[74ad8c0]	2666	virtual void visit( ConstructorInit * old ) override final {
	2667	this->node = new ast::ConstructorInit(
	2668	old->location,
	2669	GET_ACCEPT_1(ctor, Stmt),
	2670	GET_ACCEPT_1(dtor, Stmt),
	2671	GET_ACCEPT_1(init, Init)
	2672	);
[6d51bd7]	2673	}
	2674
	2675	virtual void visit( Constant * ) override final {
[dd6d7c6]	2676	// Handled in visit( ConstantEpxr * ).
	2677	// In the new tree, Constant fields are inlined into containing ConstantExpression.
	2678	assert( 0 );
[6d51bd7]	2679	}
	2680
[dd6d7c6]	2681	virtual void visit( Attribute * old ) override final {
	2682	this->node = new ast::Attribute(
	2683	old->name,
	2684	GET_ACCEPT_V( parameters, Expr )
	2685	);
[6d51bd7]	2686	}
[b336af9]	2687
	2688	virtual void visit( AttrExpr * ) override final {
[dd6d7c6]	2689	assertf( false, "AttrExpr deprecated in new AST." );
[b336af9]	2690	}
[6d51bd7]	2691	};
	2692
[6f8e87d]	2693	#undef GET_LABELS_V
	2694	#undef GET_ACCEPT_V
	2695	#undef GET_ACCEPT_1
	2696
[74dbbf6]	2697	std::list< ast::ptr< ast::Decl > > convert( const std::list< Declaration * > && translationUnit ) {
[6d51bd7]	2698	ConverterOldToNew c;
	2699	std::list< ast::ptr< ast::Decl > > decls;
	2700	for(auto d : translationUnit) {
	2701	d->accept( c );
	2702	decls.emplace_back( c.decl() );
	2703	}
[8abee136]	2704	deleteAll(translationUnit);
[6d51bd7]	2705	return decls;
[6f8e87d]	2706	}

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