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source: src/CodeTools/ResolvProtoDump.cc @ 21a2a7d

ADTast-experimental

Last change on this file since 21a2a7d was fc134a48, checked in by JiadaL <j82liang@…>, 2 years ago
Implement the struct enum
Property mode set to `100644`
File size: 22.6 KB

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1	//
2	// Cforall Version 1.0.0 Copyright (C) 2015 University of Waterloo
3	//
4	// The contents of this file are covered under the licence agreement in the
5	// file "LICENCE" distributed with Cforall.
6	//
7	// ResolvProtoDump.cc -- Translates CFA resolver instances into resolv-proto instances
8	//
9	// Author : Aaron Moss
10	// Created On : Tue Sep 11 09:04:00 2018
11	// Last Modified By : Peter A. Buhr
12	// Last Modified On : Sat Feb 15 13:50:11 2020
13	// Update Count : 3
14	//
15
16	#include <algorithm>
17	#include <cctype>
18	#include <iostream>
19	#include <memory>
20	#include <list>
21	#include <set>
22	#include <sstream>
23	#include <string>
24	#include <unordered_set>
25	#include <utility>
26	#include <vector>
27
28	#include "Common/PassVisitor.h"
29	#include "Common/utility.h"
30	#include "CodeGen/OperatorTable.h"
31	#include "SynTree/Declaration.h"
32	#include "SynTree/Expression.h"
33	#include "SynTree/Initializer.h"
34	#include "SynTree/Statement.h"
35	#include "SynTree/Type.h"
36
37	namespace CodeTools {
38
39	/// Visitor for dumping resolver prototype output
40	class ProtoDump : public WithShortCircuiting, public WithVisitorRef<ProtoDump> {
41	std::set<std::string> decls; ///< Declarations in this scope
42	std::vector<std::string> exprs; ///< Expressions in this scope
43	std::vector<ProtoDump> subs; ///< Sub-scopes
44	std::unordered_set<std::string> closed; ///< Closed type variables
45	const ProtoDump* parent; ///< Outer lexical scope
46	std::unique_ptr<Type> rtnType; ///< Return type for this scope
47
48	public:
49	/// Default constructor for root ProtoDump
50	ProtoDump() : decls(), exprs(), subs(), closed(), parent(nullptr), rtnType(nullptr) {}
51
52	/// Child constructor
53	ProtoDump(const ProtoDump* p, Type* r)
54	: decls(), exprs(), subs(), closed(p->closed), parent(p), rtnType(r) {}
55
56	// Fix copy issues
57	ProtoDump(const ProtoDump& o)
58	: decls(o.decls), exprs(o.exprs), subs(o.subs), closed(o.closed), parent(o.parent),
59	rtnType(maybeClone(o.rtnType.get())) {}
60	ProtoDump( ProtoDump&& ) = default;
61
62	ProtoDump& operator= (const ProtoDump& o) {
63	if ( this == &o ) return *this;
64
65	decls = o.decls;
66	exprs = o.exprs;
67	subs = o.subs;
68	closed = o.closed;
69	parent = o.parent;
70	rtnType.reset( maybeClone(o.rtnType.get()) );
71
72	return *this;
73	}
74	ProtoDump& operator= (ProtoDump&&) = delete;
75
76	private:
77	/// checks if this declaration is contained in the scope or one of its parents
78	bool hasDecl( const std::string& s ) const {
79	if ( decls.count( s ) ) return true;
80	if ( parent ) return parent->hasDecl( s );
81	return false;
82	}
83
84	/// adds a new declaration to this scope, providing it does not already exist
85	void addDecl( const std::string& s ) {
86	if ( ! hasDecl( s ) ) decls.insert( s );
87	}
88
89	/// adds a new expression to this scope
90	void addExpr( const std::string& s ) {
91	if ( ! s.empty() ) { exprs.emplace_back( s ); }
92	}
93
94	/// adds a new subscope to this scope, returning a reference
95	void addSub( PassVisitor<ProtoDump>&& sub ) {
96	subs.emplace_back( std::move(sub.pass) );
97	}
98
99	/// Whether lists should be separated, terminated, or preceded by their separator
100	enum septype { separated, terminated, preceded };
101
102	/// builds space-separated list of types
103	template<typename V>
104	static void build( V& visitor, const std::list< Type* >& tys, std::stringstream& ss,
105	septype mode = separated ) {
106	if ( tys.empty() ) return;
107
108	if ( mode == preceded ) { ss << ' '; }
109
110	auto it = tys.begin();
111	(*it)->accept( visitor );
112
113	while ( ++it != tys.end() ) {
114	ss << ' ';
115	(*it)->accept( visitor );
116	}
117
118	if ( mode == terminated ) { ss << ' '; }
119	}
120
121	/// builds list of types wrapped as tuple type
122	template<typename V>
123	static void buildAsTuple( V& visitor, const std::list< Type* >& tys,
124	std::stringstream& ss ) {
125	switch ( tys.size() ) {
126	case 0: ss << "#void"; break;
127	case 1: tys.front()->accept( visitor ); break;
128	default:
129	ss << "#$" << tys.size() << '<';
130	build( visitor, tys, ss );
131	ss << '>';
132	break;
133	}
134	}
135
136	/// gets types from DWT list
137	static std::list< Type* > from_decls( const std::list< DeclarationWithType* >& decls ) {
138	std::list< Type* > tys;
139	for ( auto decl : decls ) { tys.emplace_back( decl->get_type() ); }
140	return tys;
141	}
142
143	/// gets types from TypeExpr list
144	static std::list< Type* > from_exprs( const std::list< Expression* >& exprs ) {
145	std::list< Type* > tys;
146	for ( auto expr : exprs ) {
147	if ( TypeExpr* tyExpr = dynamic_cast<TypeExpr*>(expr) ) {
148	tys.emplace_back( tyExpr->type );
149	}
150	}
151	return tys;
152	}
153
154	/// builds prefixes for rp_name
155	static std::string new_prefix( const std::string& old, const char* added ) {
156	if ( old.empty() ) return std::string{"$"} + added;
157	return old + added;
158	}
159
160	/// shortens operator names
161	static void op_name( const std::string& name, std::stringstream& ss ) {
162	if ( name.compare( 0, 10, "_operator_" ) == 0 ) {
163	ss << name.substr(10);
164	} else if ( name.compare( "_constructor" ) == 0
165	\|\| name.compare( "_destructor" ) == 0 ) {
166	ss << name.substr(1);
167	} else if ( name.compare( 0, 11, "__operator_" ) == 0 ) {
168	ss << name.substr(11);
169	} else {
170	ss << name;
171	}
172	}
173
174	/// replaces operators with resolv-proto names
175	static void rp_name( const std::string& name, std::stringstream& ss,
176	std::string&& pre = "" ) {
177	// safety check for anonymous names
178	if ( name.empty() ) {
179	ss << new_prefix(pre, "anon");
180	return;
181	}
182
183	// replace operator names
184	const CodeGen::OperatorInfo * opInfo = CodeGen::operatorLookup( name );
185	if ( opInfo ) {
186	ss << new_prefix(pre, "");
187	op_name( opInfo->outputName, ss );
188	return;
189	}
190
191	// replace retval names
192	if ( name.compare( 0, 8, "_retval_" ) == 0 ) {
193	ss << new_prefix(pre, "rtn_");
194	op_name( name.substr(8), ss );
195	return;
196	}
197
198	// default to just name, with first character in lowercase
199	ss << pre
200	<< (char)std::tolower( static_cast<unsigned char>(name[0]) )
201	<< (name.c_str() + 1);
202	}
203
204	/// ensures type inst names are uppercase
205	static void ti_name( const std::string& name, std::stringstream& ss ) {
206	// replace built-in wide character types with named types
207	if ( name == "char16_t" \|\| name == "char32_t" \|\| name == "wchar_t" ) {
208	ss << "#" << name;
209	return;
210	}
211
212	// strip leading underscore
213	unsigned i = 0;
214	while ( i < name.size() && name[i] == '_' ) { ++i; }
215	if ( i == name.size() ) {
216	ss << "Anon";
217	return;
218	}
219
220	std::string stripped = name.substr(i);
221	// strip trailing "_generic_" from autogen names (avoids some user-generation issues)
222	char generic[] = "_generic_"; size_t n_generic = sizeof(generic) - 1;
223	if ( stripped.size() >= n_generic
224	&& stripped.substr( stripped.size() - n_generic ) == generic ) {
225	stripped.resize( stripped.size() - n_generic );
226	}
227
228	// uppercase first character
229	ss << (char)std::toupper( static_cast<unsigned char>(stripped[0]) )
230	<< (stripped.c_str() + 1);
231	}
232
233	/// Visitor for printing types
234	struct TypePrinter : public WithShortCircuiting, WithVisitorRef<TypePrinter>, WithGuards {
235	std::stringstream& ss; ///< Output to print to
236	const std::unordered_set<std::string>& closed; ///< Closed type variables
237	unsigned depth; ///< Depth of nesting from root type
238
239	TypePrinter( const std::unordered_set<std::string>& closed, std::stringstream& ss )
240	: ss(ss), closed(closed), depth(0) {}
241
242	// basic type represented as integer type
243	// TODO maybe hard-code conversion graph and make named type
244	void previsit( BasicType* bt ) { ss << (int)bt->get_kind(); }
245
246	// pointers (except function pointers) represented as generic type
247	void previsit( PointerType* pt ) {
248	if ( ! dynamic_cast<FunctionType*>(pt->base) ) { ss << "#$ptr<"; ++depth; }
249	}
250	void postvisit( PointerType* pt ) {
251	if ( ! dynamic_cast<FunctionType*>(pt->base) ) { --depth; ss << '>'; }
252	}
253
254	// arrays represented as generic pointers
255	void previsit( ArrayType* at ) {
256	ss << "#$ptr<";
257	++depth;
258	at->base->accept( *visitor );
259	--depth;
260	ss << '>';
261	visit_children = false;
262	}
263
264	// ignore top-level reference types, they're mostly transparent to resolution
265	void previsit( ReferenceType* ) {
266	if ( depth > 0 ) { ss << "#$ref<"; }
267	++depth;
268	}
269	void postvisit( ReferenceType* ) {
270	--depth;
271	if ( depth > 0 ) { ss << '>'; }
272	}
273
274	// print function types using prototype syntax
275	void previsit( FunctionType* ft ) {
276	ss << '[';
277	++depth;
278	build( *visitor, from_decls( ft->returnVals ), ss, preceded );
279	ss << " : ";
280	build( *visitor, from_decls( ft->parameters ), ss, terminated );
281	--depth;
282	ss << ']';
283	visit_children = false;
284	}
285
286	private:
287	// prints aggregate type name as NamedType with optional paramters
288	void handleAggregate( ReferenceToType* at ) {
289	ss << '#' << at->name;
290	if ( ! at->parameters.empty() ) {
291	ss << '<';
292	++depth;
293	build( *visitor, from_exprs( at->parameters ), ss );
294	--depth;
295	ss << '>';
296	}
297	visit_children = false;
298	}
299
300	public:
301	// handle aggregate types using NamedType
302	void previsit( StructInstType* st ) { handleAggregate( st ); }
303	void previsit( UnionInstType* ut ) { handleAggregate( ut ); }
304
305	// replace enums with int
306	void previsit( EnumInstType* ) {
307	// TODO: add the meaningful representation of typed int
308	ss << (int)BasicType::SignedInt;
309	}
310
311	void previsit( TypeInstType* vt ) {
312	// print closed variables as named types
313	if ( closed.count( vt->name ) ) { ss << '#' << vt->name; }
314	// otherwise make sure first letter is capitalized
315	else { ti_name( vt->name, ss ); }
316	}
317
318	// flattens empty and singleton tuples
319	void previsit( TupleType* tt ) {
320	++depth;
321	buildAsTuple( *visitor, tt->types, ss );
322	--depth;
323	visit_children = false;
324	}
325
326	// TODO support variable args for functions
327	void previsit( VarArgsType* ) {
328	// only include varargs for top level (argument type)
329	if ( depth == 0 ) { ss << "#$varargs"; }
330	}
331
332	// replace 0 and 1 with int
333	// TODO support 0 and 1 with their proper type names and conversions
334	void previsit( ZeroType* ) { ss << (int)BasicType::SignedInt; }
335	void previsit( OneType* ) { ss << (int)BasicType::SignedInt; }
336
337	// only print void type if not at top level
338	void previsit( VoidType* ) {
339	if ( depth > 0 ) { ss << "#void"; }
340	}
341	};
342
343	/// builds description of function
344	void build( const std::string& name, FunctionType* fnTy, std::stringstream& ss ) {
345	PassVisitor<TypePrinter> printTy{ closed, ss };
346	// print return values
347	build( printTy, from_decls( fnTy->returnVals ), ss, terminated );
348	// print name
349	rp_name( name, ss );
350	// print parameters
351	build( printTy, from_decls( fnTy->parameters ), ss, preceded );
352	// print assertions
353	for ( TypeDecl* tyvar : fnTy->forall ) {
354	for ( DeclarationWithType* assn : tyvar->assertions ) {
355	ss << " \| ";
356	build( assn->name, assn->get_type(), ss );
357	}
358	}
359	}
360
361	/// builds description of a variable (falls back to function if function type)
362	void build( const std::string& name, Type* ty, std::stringstream& ss ) {
363	// ignore top-level references
364	Type *norefs = ty->stripReferences();
365
366	// fall back to function declaration if function type
367	if ( PointerType* pTy = dynamic_cast< PointerType* >(norefs) ) {
368	if ( FunctionType* fnTy = dynamic_cast< FunctionType* >(pTy->base) ) {
369	build( name, fnTy, ss );
370	return;
371	}
372	} else if ( FunctionType* fnTy = dynamic_cast< FunctionType* >(norefs) ) {
373	build( name, fnTy, ss );
374	return;
375	}
376
377	// print variable declaration in prototype syntax
378	PassVisitor<TypePrinter> printTy{ closed, ss };
379	norefs->accept( printTy );
380	ss << " &";
381	rp_name( name, ss );
382	}
383
384	/// builds description of a field access
385	void build( const std::string& name, AggregateDecl* agg, Type* ty, std::stringstream& ss ) {
386	// ignore top-level references
387	Type *norefs = ty->stripReferences();
388
389	// print access as new field name
390	PassVisitor<TypePrinter> printTy{ closed, ss };
391	norefs->accept( printTy );
392	ss << ' ';
393	rp_name( name, ss, "$field_" );
394	ss << " #" << agg->name;
395	// handle type parameters
396	if ( ! agg->parameters.empty() ) {
397	ss << '<';
398	auto it = agg->parameters.begin();
399	while (true) {
400	ti_name( (*it)->name, ss );
401	if ( ++it == agg->parameters.end() ) break;
402	ss << ' ';
403	}
404	ss << '>';
405	}
406	}
407
408	/// Visitor for printing expressions
409	struct ExprPrinter : WithShortCircuiting, WithVisitorRef<ExprPrinter> {
410	// TODO change interface to generate multiple expression candidates
411	const std::unordered_set<std::string>& closed; ///< set of closed type vars
412	std::stringstream& ss; ///< Output to print to
413
414	ExprPrinter( const std::unordered_set<std::string>& closed, std::stringstream& ss )
415	: closed(closed), ss(ss) {}
416
417	/// Names handled as name expressions
418	void previsit( NameExpr* expr ) {
419	ss << '&';
420	rp_name( expr->name, ss );
421	}
422
423	/// Handle already-resolved variables as type constants
424	void previsit( VariableExpr* expr ) {
425	PassVisitor<TypePrinter> tyPrinter{ closed, ss };
426	expr->var->get_type()->accept( tyPrinter );
427	visit_children = false;
428	}
429
430	/// Calls handled as calls
431	void previsit( UntypedExpr* expr ) {
432	// TODO handle name extraction more generally
433	NameExpr* name = dynamic_cast<NameExpr*>(expr->function);
434
435	// fall back on just resolving call to function name
436	// TODO incorporate function type into resolv-proto
437	if ( ! name ) {
438	expr->function->accept( *visitor );
439	visit_children = false;
440	return;
441	}
442
443	rp_name( name->name, ss );
444	if ( expr->args.empty() ) {
445	ss << "()";
446	} else {
447	ss << "( ";
448	auto it = expr->args.begin();
449	while (true) {
450	(it)->accept( visitor );
451	if ( ++it == expr->args.end() ) break;
452	ss << ' ';
453	}
454	ss << " )";
455	}
456	visit_children = false;
457	}
458
459	/// Already-resolved calls reduced to their type constant
460	void previsit( ApplicationExpr* expr ) {
461	PassVisitor<TypePrinter> tyPrinter{ closed, ss };
462	expr->result->accept( tyPrinter );
463	visit_children = false;
464	}
465
466	/// Address-of handled as operator
467	void previsit( AddressExpr* expr ) {
468	ss << "$addr( ";
469	expr->arg->accept( *visitor );
470	ss << " )";
471	visit_children = false;
472	}
473
474	/// Casts replaced with result type
475	/// TODO put cast target functions in, and add second expression for target
476	void previsit( CastExpr* cast ) {
477	PassVisitor<TypePrinter> tyPrinter{ closed, ss };
478	cast->result->accept( tyPrinter );
479	visit_children = false;
480	}
481
482	/// Member access handled as function from aggregate to member
483	void previsit( UntypedMemberExpr* expr ) {
484	// TODO handle name extraction more generally
485	NameExpr* name = dynamic_cast<NameExpr*>(expr->member);
486
487	// fall back on just resolving call to member name
488	// TODO incorporate function type into resolv-proto
489	if ( ! name ) {
490	expr->member->accept( *visitor );
491	visit_children = false;
492	return;
493	}
494
495	rp_name( name->name, ss, "$field_" );
496	ss << "( ";
497	expr->aggregate->accept( *visitor );
498	ss << " )";
499	visit_children = false;
500	}
501
502	/// Constant expression replaced by its type
503	void previsit( ConstantExpr* expr ) {
504	PassVisitor<TypePrinter> tyPrinter{ closed, ss };
505	expr->constant.get_type()->accept( tyPrinter );
506	visit_children = false;
507	}
508
509	/// sizeof( ... ), alignof( ... ), offsetof( ... ) replaced by unsigned long constant
510	/// TODO extra expression to resolve argument
511	void previsit( SizeofExpr* ) {
512	ss << (int)BasicType::LongUnsignedInt;
513	visit_children = false;
514	}
515	void previsit( AlignofExpr* ) {
516	ss << (int)BasicType::LongUnsignedInt;
517	visit_children = false;
518	}
519	void previsit( UntypedOffsetofExpr* ) {
520	ss << (int)BasicType::LongUnsignedInt;
521	visit_children = false;
522	}
523
524	/// Logical expressions represented as operators
525	void previsit( LogicalExpr* expr ) {
526	ss << '$' << ( expr->get_isAnd() ? "and" : "or" ) << "( ";
527	expr->arg1->accept( *visitor );
528	ss << ' ';
529	expr->arg2->accept( *visitor );
530	ss << " )";
531	visit_children = false;
532	}
533
534	/// Conditional expression represented as operator
535	void previsit( ConditionalExpr* expr ) {
536	ss << "$if( ";
537	expr->arg1->accept( *visitor );
538	ss << ' ';
539	expr->arg2->accept( *visitor );
540	ss << ' ';
541	expr->arg3->accept( *visitor );
542	ss << " )";
543	visit_children = false;
544	}
545
546	/// Comma expression represented as operator
547	void previsit( CommaExpr* expr ) {
548	ss << "$seq( ";
549	expr->arg1->accept( *visitor );
550	ss << ' ';
551	expr->arg2->accept( *visitor );
552	ss << " )";
553	visit_children = false;
554	}
555
556	// TODO handle ignored ImplicitCopyCtorExpr and below
557	};
558
559	void build( Initializer* init, std::stringstream& ss ) {
560	if ( SingleInit* si = dynamic_cast<SingleInit*>(init) ) {
561	PassVisitor<ExprPrinter> exprPrinter{ closed, ss };
562	si->value->accept( exprPrinter );
563	ss << ' ';
564	} else if ( ListInit* li = dynamic_cast<ListInit*>(init) ) {
565	for ( Initializer* it : li->initializers ) {
566	build( it, ss );
567	}
568	}
569	}
570
571	/// Adds an object initializer to the list of expressions
572	void build( const std::string& name, Initializer* init, std::stringstream& ss ) {
573	ss << "$constructor( &";
574	rp_name( name, ss );
575	ss << ' ';
576	build( init, ss );
577	ss << ')';
578	}
579
580	/// Adds a return expression to the list of expressions
581	void build( Type* rtnType, Expression* expr, std::stringstream& ss ) {
582	ss << "$constructor( ";
583	PassVisitor<TypePrinter> tyPrinter{ closed, ss };
584	rtnType->accept( tyPrinter );
585	ss << ' ';
586	PassVisitor<ExprPrinter> exprPrinter{ closed, ss };
587	expr->accept( exprPrinter );
588	ss << " )";
589	}
590
591	/// Adds all named declarations in a list to the local scope
592	void addAll( const std::list<DeclarationWithType*>& decls ) {
593	for ( auto decl : decls ) {
594	// skip anonymous decls
595	if ( decl->name.empty() ) continue;
596
597	// handle objects
598	if ( ObjectDecl* obj = dynamic_cast< ObjectDecl* >( decl ) ) {
599	previsit( obj );
600	}
601	}
602	}
603
604	/// encode field access as function
605	void addAggregateFields( AggregateDecl* agg ) {
606	// make field names functions
607	for ( Declaration* member : agg->members ) {
608	if ( ObjectDecl* obj = dynamic_cast< ObjectDecl* >(member) ) {
609	std::stringstream ss;
610	build( obj->name, agg, obj->type, ss );
611	addDecl( ss.str() );
612	}
613	}
614
615	visit_children = false;
616	}
617
618	public:
619	void previsit( ObjectDecl *obj ) {
620	// add variable as declaration
621	std::stringstream ss;
622	build( obj->name, obj->type, ss );
623	addDecl( ss.str() );
624
625	// add initializer as expression if applicable
626	if ( obj->init ) {
627	std::stringstream ss;
628	build( obj->name, obj->init, ss );
629	addExpr( ss.str() );
630	}
631	}
632
633	void previsit( FunctionDecl *decl ) {
634	// skip decls with ftype parameters
635	for ( TypeDecl* tyvar : decl->type->forall ) {
636	if ( tyvar->get_kind() == TypeDecl::Ftype ) {
637	visit_children = false;
638	return;
639	}
640	}
641
642	// add function as declaration
643	std::stringstream ss;
644	build( decl->name, decl->type, ss );
645	addDecl( ss.str() );
646
647	// add body if available
648	if ( decl->statements ) {
649	std::list<Type*> rtns = from_decls( decl->type->returnVals );
650	Type* rtn = nullptr;
651	if ( rtns.size() == 1 ) {
652	if ( ! dynamic_cast<VoidType*>(rtns.front()) ) rtn = rtns.front()->clone();
653	} else if ( rtns.size() > 1 ) {
654	rtn = new TupleType{ Type::Qualifiers{}, rtns };
655	}
656	PassVisitor<ProtoDump> body{ this, rtn };
657
658	for ( TypeDecl* tyvar : decl->type->forall ) {
659	// add set of "closed" types to body so that it can print them as NamedType
660	body.pass.closed.insert( tyvar->name );
661
662	// add assertions to local scope as declarations as well
663	for ( DeclarationWithType* assn : tyvar->assertions ) {
664	assn->accept( body );
665	}
666	}
667
668	// add named parameters and returns to local scope
669	body.pass.addAll( decl->type->returnVals );
670	body.pass.addAll( decl->type->parameters );
671
672	// add contents of function to new scope
673	decl->statements->accept( body );
674
675	// store sub-scope
676	addSub( std::move(body) );
677	}
678
679	visit_children = false;
680	}
681
682	void previsit( StructDecl* sd ) { addAggregateFields(sd); }
683	void previsit( UnionDecl* ud ) { addAggregateFields(ud); }
684
685	void previsit( EnumDecl* ed ) {
686	std::unique_ptr<Type> eType =
687	std::make_unique<BasicType>( Type::Qualifiers{}, BasicType::SignedInt );
688
689	// add field names directly to enclosing scope
690	for ( Declaration* member : ed->members ) {
691	if ( ObjectDecl* obj = dynamic_cast< ObjectDecl* >(member) ) {
692	previsit(obj);
693	}
694	}
695
696	visit_children = false;
697	}
698
699	void previsit( ReturnStmt* stmt ) {
700	// do nothing for void-returning functions or statements returning nothing
701	if ( ! rtnType \|\| ! stmt->expr ) return;
702
703	// otherwise construct the return type from the expression
704	std::stringstream ss;
705	build( rtnType.get(), stmt->expr, ss );
706	addExpr( ss.str() );
707	visit_children = false;
708	}
709
710	void previsit( AsmStmt* ) {
711	// skip asm statements
712	visit_children = false;
713	}
714
715	void previsit( Expression* expr ) {
716	std::stringstream ss;
717	PassVisitor<ExprPrinter> exPrinter{ closed, ss };
718	expr->accept( exPrinter );
719	addExpr( ss.str() );
720	visit_children = false;
721	}
722
723	/// Print non-prelude global declarations for resolv proto
724	void printGlobals() const {
725	std::cout << "#$ptr<T> $addr T" << std::endl; // &?
726	int i = (int)BasicType::SignedInt;
727	std::cout << i << " $and " << i << ' ' << i << std::endl; // ?&&?
728	std::cout << i << " $or " << i << ' ' << i << std::endl; // ?\|\|?
729	std::cout << "T $if " << i << " T T" << std::endl; // ternary operator
730	std::cout << "T $seq X T" << std::endl; // ?,?
731	}
732
733	public:
734	/// Prints this ProtoDump instance
735	void print(unsigned indent = 0) const {
736	// print globals at root level
737	if ( ! parent ) printGlobals();
738	// print decls
739	std::string tab( indent, '\t' );
740	for ( const std::string& d : decls ) {
741	std::cout << tab << d << std::endl;
742	}
743	// print divider
744	std::cout << '\n' << tab << "%%\n" << std::endl;
745	// print top-level expressions
746	for ( const std::string& e : exprs ) {
747	std::cout << tab << e << std::endl;
748	}
749	// print child scopes
750	++indent;
751	for ( const ProtoDump & s : subs ) {
752	std::cout << tab << '{' << std::endl;
753	s.print( indent );
754	std::cout << tab << '}' << std::endl;
755	}
756	}
757	};
758
759	void dumpAsResolvProto( std::list< Declaration * > &translationUnit ) {
760	PassVisitor<ProtoDump> dump;
761	acceptAll( translationUnit, dump );
762	dump.pass.print();
763	}
764
765	} // namespace CodeTools
766
767	// Local Variables: //
768	// tab-width: 4 //
769	// mode: c++ //
770	// compile-command: "make install" //
771	// End: //

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