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source: src/ResolvExpr/CurrentObject.cc @ b9be000b

ADTaaron-thesisarm-ehast-experimentalcleanup-dtorsdeferred_resndemanglerenumforall-pointer-decayjacob/cs343-translationjenkins-sandboxnew-astnew-ast-unique-exprnew-envno_listpersistent-indexerpthread-emulationqualifiedEnumresolv-newwith_gc

Last change on this file since b9be000b was c6747a1, checked in by Rob Schluntz <rschlunt@…>, 7 years ago
Update debug print in CurrentObject?
Property mode set to `100644`
File size: 21.0 KB

Rev	Line
[e4d829b]	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	// CurrentObject.h --
	8	//
	9	// Author : Rob Schluntz
	10	// Created On : Tue Jun 13 15:28:32 2017
	11	// Last Modified By : Rob Schluntz
	12	// Last Modified On : Tue Jun 13 15:28:44 2017
	13	// Update Count : 2
	14	//
	15
[ea6332d]	16	#include <stddef.h> // for size_t
	17	#include <cassert> // for assertf, assert, safe_dynamic_...
	18	#include <iostream> // for ostream, operator<<, basic_ost...
	19	#include <stack> // for stack
	20	#include <string> // for string, operator<<, allocator
[e4d829b]	21
[ea6332d]	22	#include "Common/Indenter.h" // for Indenter, operator<<
	23	#include "Common/SemanticError.h" // for SemanticError
	24	#include "Common/utility.h" // for toString
[e4d829b]	25	#include "CurrentObject.h"
[ea6332d]	26	#include "SynTree/Constant.h" // for Constant
	27	#include "SynTree/Declaration.h" // for ObjectDecl, Declaration, Struc...
	28	#include "SynTree/Expression.h" // for InitAlternative, VariableExpr
	29	#include "SynTree/Initializer.h" // for Designation, operator<<
	30	#include "SynTree/Type.h" // for Type, StructInstType, UnionIns...
	31	#include "SynTree/TypeSubstitution.h" // for TypeSubstitution
[e4d829b]	32
	33	#if 0
	34	#define PRINT(x) x
	35	#else
	36	#define PRINT(x)
	37	#endif
	38
	39	namespace ResolvExpr {
	40	long long int getConstValue( ConstantExpr * constExpr ) {
	41	if ( BasicType * basicType = dynamic_cast< BasicType * >( constExpr->get_result() ) ) {
[62423350]	42	if ( basicType->isInteger() ) {
	43	return constExpr->get_constant()->get_ival();
[e4d829b]	44	} else {
[56e49b0]	45	assertf( false, "Non-integer constant expression in getConstValue %s", toString( constExpr ).c_str() ); // xxx - might be semantic error
[e4d829b]	46	}
[62423350]	47	} else if ( dynamic_cast< OneType * >( constExpr->get_result() ) ) {
	48	return 1;
	49	} else if ( dynamic_cast< ZeroType * >( constExpr->get_result() ) ) {
	50	return 0;
[e4d829b]	51	} else {
[62423350]	52	assertf( false, "unhandled type on getConstValue %s", toString( constExpr->get_result() ).c_str() ); // xxx - might be semantic error
[e4d829b]	53	}
	54	}
	55
[62423350]	56	template< typename AggrInst >
	57	TypeSubstitution makeGenericSubstitution( AggrInst * inst ) {
	58	assert( inst );
	59	assert( inst->get_baseParameters() );
	60	std::list< TypeDecl * > baseParams = *inst->get_baseParameters();
	61	std::list< Expression * > typeSubs = inst->get_parameters();
	62	TypeSubstitution subs( baseParams.begin(), baseParams.end(), typeSubs.begin() );
	63	return subs;
	64	}
	65
	66	TypeSubstitution makeGenericSubstitution( Type * type ) {
	67	if ( StructInstType * inst = dynamic_cast< StructInstType * >( type ) ) {
	68	return makeGenericSubstitution( inst );
	69	} else if ( UnionInstType * inst = dynamic_cast< UnionInstType * >( type ) ) {
	70	return makeGenericSubstitution( inst );
	71	} else {
	72	return TypeSubstitution();
	73	}
	74	}
	75
[e4d829b]	76	class MemberIterator {
	77	public:
	78	virtual ~MemberIterator() {}
	79
	80	virtual void setPosition( std::list< Expression * > & designators ) = 0;
	81	virtual std::list<InitAlternative> operator*() const = 0;
	82	virtual operator bool() const = 0;
	83	virtual MemberIterator & bigStep() = 0;
	84	virtual MemberIterator & smallStep() = 0;
	85	virtual Type * getType() = 0;
	86	virtual Type * getNext() = 0;
	87
	88	virtual void print( std::ostream & out, Indenter indent ) const = 0;
	89
	90	virtual std::list<InitAlternative> first() const = 0; // should be protected
	91	};
	92
	93	std::ostream & operator<<(std::ostream & out, const MemberIterator & it) {
	94	Indenter indenter;
	95	it.print( out, indenter );
	96	return out;
	97	}
	98
	99	/// create a new MemberIterator that traverses a type correctly
	100	MemberIterator * createMemberIterator( Type * type );
	101
	102	/// iterates "other" types, e.g. basic types, pointer types, etc. which do not change at list initializer entry
	103	class SimpleIterator : public MemberIterator {
	104	public:
	105	SimpleIterator( Type * type ) : type( type ) {}
	106
	107	virtual void setPosition( std::list< Expression * > & designators ) {
	108	assertf( designators.empty(), "simple iterator given non-empty designator..." ); // xxx - might be semantic error
	109	}
	110
	111	virtual std::list<InitAlternative> operator*() const { return first(); }
	112	virtual operator bool() const { return type; }
	113
	114	// big step is the same as small step
	115	virtual MemberIterator & bigStep() { return smallStep(); }
	116	virtual MemberIterator & smallStep() {
	117	type = nullptr; // type is nullified on increment since SimpleIterators do not have members
	118	return *this;
	119	}
	120
[9ff56e7]	121	virtual void print( std::ostream & out, __attribute__((unused)) Indenter indent ) const {
[e4d829b]	122	out << "SimpleIterator(" << type << ")";
	123	}
	124
	125	virtual Type * getType() { return type; }
	126	virtual Type * getNext() { return type; }
	127
	128	protected:
	129	virtual std::list<InitAlternative> first() const {
	130	if ( type ) return std::list<InitAlternative>{ { type->clone(), new Designation( {} ) } };
	131	else return std::list<InitAlternative>{};
	132	}
	133	private:
	134	Type * type = nullptr;
	135	};
	136
	137	class ArrayIterator : public MemberIterator {
	138	public:
	139	ArrayIterator( ArrayType * at ) : array( at ) {
	140	PRINT( std::cerr << "Creating array iterator: " << at << std::endl; )
	141	base = at->get_base();
	142	memberIter = createMemberIterator( base );
	143	setSize( at->get_dimension() );
	144	}
	145
	146	~ArrayIterator() {
	147	delete memberIter;
	148	}
	149
	150	private:
	151	void setSize( Expression * expr ) {
	152	if ( ConstantExpr * constExpr = dynamic_cast< ConstantExpr * >( expr ) ) {
[62423350]	153	size = getConstValue( constExpr );
[e4d829b]	154	PRINT( std::cerr << "array type with size: " << size << std::endl; )
	155	} else if ( CastExpr * castExpr = dynamic_cast< CastExpr * >( expr ) ) {
[62423350]	156	setSize( castExpr->get_arg() ); // xxx - need to perform the conversion specified by the cast
[e4d829b]	157	} else {
[62423350]	158	assertf( false, "unhandled expression in setSize: %s", toString( expr ).c_str() ); // xxx - if not a constant expression, it's not simple to determine how long the array actually is, which is necessary for initialization to be done correctly -- fix this
[e4d829b]	159	}
	160	}
	161
	162	public:
	163	void setPosition( Expression * expr ) {
	164	// need to permit integer-constant-expressions, including: integer constants, enumeration constants, character constants, sizeof expressions, _Alignof expressions, cast expressions
	165	if ( ConstantExpr * constExpr = dynamic_cast< ConstantExpr * >( expr ) ) {
	166	index = getConstValue( constExpr );
	167	} else if ( CastExpr * castExpr = dynamic_cast< CastExpr * >( expr ) ) {
	168	setPosition( castExpr->get_arg() );
	169	} else if ( VariableExpr * varExpr = dynamic_cast< VariableExpr * >( expr ) ) {
[56e49b0]	170	assertf( dynamic_cast<EnumInstType *> ( varExpr->get_result() ), "ArrayIterator given variable that isn't an enum constant : %s", toString( expr ).c_str() );
[e4d829b]	171	index = 0; // xxx - get actual value of enum constant
	172	} else if ( dynamic_cast< SizeofExpr * >( expr ) \|\| dynamic_cast< AlignofExpr * >( expr ) ) {
	173	index = 0; // xxx - get actual sizeof/alignof value?
	174	} else {
	175	assertf( false, "bad designator given to ArrayIterator: %s", toString( expr ).c_str() );
	176	}
	177	}
	178
	179	virtual void setPosition( std::list< Expression * > & designators ) {
	180	if ( ! designators.empty() ) {
	181	setPosition( designators.front() );
	182	designators.pop_front();
	183	memberIter->setPosition( designators );
	184	}
	185	}
	186
	187	virtual std::list<InitAlternative> operator*() const {
	188	return first();
	189	}
	190
	191	virtual operator bool() const { return index < size; }
	192
	193	virtual MemberIterator & bigStep() {
	194	PRINT( std::cerr << "bigStep in ArrayIterator (" << index << "/" << size << ")" << std::endl; )
	195	++index;
	196	delete memberIter;
	197	if ( index < size ) memberIter = createMemberIterator( base );
	198	else memberIter = nullptr;
	199	return *this;
	200	}
	201
	202	virtual MemberIterator & smallStep() {
	203	PRINT( std::cerr << "smallStep in ArrayIterator (" << index << "/" << size << ")" << std::endl; )
	204	if ( memberIter ) {
	205	PRINT( std::cerr << "has member iter: " << *memberIter << std::endl; )
	206	memberIter->smallStep();
	207	if ( *memberIter ) {
	208	PRINT( std::cerr << "has valid member iter" << std::endl; )
	209	return *this;
	210	}
	211	}
	212	return bigStep();
	213	}
	214
	215	virtual Type * getType() { return array; }
	216	virtual Type * getNext() { return base; }
	217
	218	virtual std::list<InitAlternative> first() const {
	219	PRINT( std::cerr << "first in ArrayIterator (" << index << "/" << size << ")" << std::endl; )
	220	if ( memberIter && *memberIter ) {
	221	std::list<InitAlternative> ret = memberIter->first();
	222	for ( InitAlternative & alt : ret ) {
	223	alt.designation->get_designators().push_front( new ConstantExpr( Constant::from_ulong( index ) ) );
	224	}
	225	return ret;
	226	}
	227	return std::list<InitAlternative>();
	228	}
	229
	230	virtual void print( std::ostream & out, Indenter indent ) const {
	231	out << "ArrayIterator(Array of " << base << ")";
	232	if ( memberIter ) {
	233	Indenter childIndent = indent+1;
	234	out << std::endl << childIndent;
	235	memberIter->print( out, childIndent );
	236	}
	237	}
	238
	239	private:
	240	ArrayType * array = nullptr;
	241	Type * base = nullptr;
	242	size_t index = 0;
	243	size_t size = 0;
	244	MemberIterator * memberIter = nullptr;
	245	};
	246
	247	class AggregateIterator : public MemberIterator {
	248	public:
[62423350]	249	typedef std::list<Declaration *> MemberList;
	250	typedef MemberList::const_iterator iterator;
	251	std::string kind = ""; // for debug
	252	std::string name;
	253	Type * inst = nullptr;
	254	const MemberList & members;
[e4d829b]	255	iterator curMember;
[62423350]	256	bool atbegin = true; // false at first {small,big}Step -- this aggr type is only added to the possibilities at the beginning
[e4d829b]	257	Type * curType = nullptr;
	258	MemberIterator * memberIter = nullptr;
[62423350]	259	mutable TypeSubstitution sub;
[e4d829b]	260
[62423350]	261	AggregateIterator( const std::string & kind, const std::string & name, Type * inst, const MemberList & members ) : kind( kind ), name( name ), inst( inst ), members( members ), curMember( members.begin() ), sub( makeGenericSubstitution( inst ) ) {
[c6747a1]	262	PRINT( std::cerr << "Creating " << kind << "(" << name << ")"; )
[e4d829b]	263	init();
	264	}
	265
	266	virtual ~AggregateIterator() {
	267	delete memberIter;
	268	}
	269
	270	bool init() {
[62423350]	271	PRINT( std::cerr << "--init()--" << members.size() << std::endl; )
	272	if ( curMember != members.end() ) {
[e4d829b]	273	if ( ObjectDecl * field = dynamic_cast< ObjectDecl * >( *curMember ) ) {
	274	PRINT( std::cerr << "incremented to field: " << field << std::endl; )
	275	curType = field->get_type();
	276	memberIter = createMemberIterator( curType );
	277	return true;
	278	}
	279	}
	280	return false;
	281	}
	282
	283	virtual std::list<InitAlternative> operator*() const {
	284	if (memberIter && *memberIter) {
	285	std::list<InitAlternative> ret = memberIter->first();
[62423350]	286	PRINT( std::cerr << "sub: " << sub << std::endl; )
[e4d829b]	287	for ( InitAlternative & alt : ret ) {
	288	PRINT( std::cerr << "iterating and adding designators" << std::endl; )
[e3e16bc]	289	alt.designation->get_designators().push_front( new VariableExpr( strict_dynamic_cast< ObjectDecl * >( *curMember ) ) );
[62423350]	290	// need to substitute for generic types, so that casts are to concrete types
	291	PRINT( std::cerr << " type is: " << alt.type; )
	292	sub.apply( alt.type ); // also apply to designation??
	293	PRINT( std::cerr << " ==> " << alt.type << std::endl; )
[e4d829b]	294	}
	295	return ret;
	296	}
	297	return std::list<InitAlternative>();
	298	}
	299
	300	virtual void setPosition( std::list< Expression * > & designators ) {
	301	if ( ! designators.empty() ) {
	302	if ( VariableExpr * varExpr = dynamic_cast< VariableExpr * >( designators.front() ) ) {
[62423350]	303	for ( curMember = members.begin(); curMember != members.end(); ++curMember ) {
[e4d829b]	304	if ( *curMember == varExpr->get_var() ) {
	305	designators.pop_front();
	306	delete memberIter;
	307	memberIter = createMemberIterator( varExpr->get_result() );
	308	curType = varExpr->get_result();
[62423350]	309	atbegin = curMember == members.begin() && designators.empty(); // xxx - is this the right condition for atbegin??
[e4d829b]	310	memberIter->setPosition( designators );
	311	return;
	312	} // if
	313	} // for
[62423350]	314	assertf( false, "could not find member in %s: %s", kind.c_str(), toString( varExpr ).c_str() );
[e4d829b]	315	} else {
[62423350]	316	assertf( false, "bad designator given to %s: %s", kind.c_str(), toString( designators.front() ).c_str() );
[e4d829b]	317	} // if
	318	} // if
	319	}
	320
	321	virtual MemberIterator & smallStep() {
	322	PRINT( std::cerr << "smallStep in " << kind << std::endl; )
	323	atbegin = false;
	324	if ( memberIter ) {
	325	PRINT( std::cerr << "has member iter, incrementing..." << std::endl; )
	326	memberIter->smallStep();
	327	if ( *memberIter ) {
	328	PRINT( std::cerr << "success!" << std::endl; )
	329	return *this;
	330	}
	331	}
	332	return bigStep();
	333	}
	334
	335	virtual Type * getType() { return inst; }
	336	virtual Type * getNext() {
	337	if ( memberIter && *memberIter ) return memberIter->getType(); // xxx - ??? recursive call???
	338	return nullptr;
	339	}
	340
	341	virtual std::list<InitAlternative> first() const {
	342	std::list<InitAlternative> ret;
	343	PRINT( std::cerr << "first " << kind << std::endl; )
	344	if ( memberIter && memberIter ) { // might not need memberIter??
	345	PRINT( std::cerr << "adding children" << std::endl; )
	346	ret = memberIter->first();
	347	for ( InitAlternative & alt : ret ) {
	348	PRINT( std::cerr << "iterating and adding designators" << std::endl; )
[e3e16bc]	349	alt.designation->get_designators().push_front( new VariableExpr( strict_dynamic_cast< ObjectDecl * >( *curMember ) ) );
[e4d829b]	350	}
	351	}
	352	// if ( curMember == std::next( decl->get_members().begin(), 1 ) ) { // xxx - this never triggers because curMember is incremented immediately on construction
	353	if ( atbegin ) { // xxx - this never triggers because curMember is incremented immediately on construction
	354	// xxx - what about case of empty struct??
	355	// only add self if at the very beginning of the structure
	356	PRINT( std::cerr << "adding self" << std::endl; )
	357	ret.push_front( { inst->clone(), new Designation( {} ) } );
	358	}
	359	return ret;
	360	}
	361
	362	virtual void print( std::ostream & out, Indenter indent ) const {
[62423350]	363	out << kind << "(" << name << ")";
[e4d829b]	364	if ( memberIter ) {
	365	Indenter childIndent = indent+1;
	366	out << std::endl << childIndent;
	367	memberIter->print( out, childIndent );
	368	}
	369	}
	370	};
	371
	372	class UnionIterator : public AggregateIterator {
	373	public:
[62423350]	374	UnionIterator( UnionInstType * inst ) : AggregateIterator( "UnionIterator", inst->get_name(), inst, inst->get_baseUnion()->get_members() ) {}
[e4d829b]	375
	376	virtual operator bool() const { return (memberIter && *memberIter); }
	377	virtual MemberIterator & bigStep() {
	378	// unions only initialize one member
	379	PRINT( std::cerr << "bigStep in " << kind << std::endl; )
	380	atbegin = false;
	381	delete memberIter;
	382	memberIter = nullptr;
	383	curType = nullptr;
[62423350]	384	curMember = members.end();
[e4d829b]	385	return *this;
	386	}
	387	virtual std::list<InitAlternative> first() const { return std::list<InitAlternative>{}; }
	388	};
	389
	390	class StructIterator : public AggregateIterator {
	391	public:
[62423350]	392	StructIterator( StructInstType * inst ) : AggregateIterator( "StructIterator", inst->get_name(), inst, inst->get_baseStruct()->get_members() ) {}
	393
	394	virtual operator bool() const { return curMember != members.end() \|\| (memberIter && *memberIter); }
	395
	396	virtual MemberIterator & bigStep() {
	397	PRINT( std::cerr << "bigStep in " << kind << std::endl; )
	398	atbegin = false;
	399	delete memberIter;
	400	memberIter = nullptr;
	401	curType = nullptr;
	402	for ( ; curMember != members.end(); ) {
	403	++curMember;
	404	if ( init() ) {
	405	return *this;
	406	}
	407	}
	408	return *this;
	409	}
	410	};
	411
	412	class TupleIterator : public AggregateIterator {
	413	public:
	414	TupleIterator( TupleType * inst ) : AggregateIterator( "TupleIterator", toString("Tuple", inst->size()), inst, inst->get_members() ) {}
[e4d829b]	415
[62423350]	416	virtual operator bool() const { return curMember != members.end() \|\| (memberIter && *memberIter); }
[e4d829b]	417
	418	virtual MemberIterator & bigStep() {
	419	PRINT( std::cerr << "bigStep in " << kind << std::endl; )
	420	atbegin = false;
	421	delete memberIter;
	422	memberIter = nullptr;
	423	curType = nullptr;
[62423350]	424	for ( ; curMember != members.end(); ) {
[e4d829b]	425	++curMember;
	426	if ( init() ) {
	427	return *this;
	428	}
	429	}
	430	return *this;
	431	}
	432	};
	433
	434	MemberIterator * createMemberIterator( Type * type ) {
	435	if ( ReferenceToType * aggr = dynamic_cast< ReferenceToType * >( type ) ) {
	436	if ( StructInstType * sit = dynamic_cast< StructInstType * >( aggr ) ) {
	437	return new StructIterator( sit );
	438	} else if ( UnionInstType * uit = dynamic_cast< UnionInstType * >( aggr ) ) {
	439	return new UnionIterator( uit );
	440	} else {
[62423350]	441	assertf( dynamic_cast< TypeInstType * >( type ), "some other reftotype" );
	442	return new SimpleIterator( type );
[e4d829b]	443	}
	444	} else if ( ArrayType * at = dynamic_cast< ArrayType * >( type ) ) {
	445	return new ArrayIterator( at );
[62423350]	446	} else if ( TupleType * tt = dynamic_cast< TupleType * >( type ) ) {
	447	return new TupleIterator( tt );
[e4d829b]	448	} else {
	449	return new SimpleIterator( type );
	450	}
	451	}
	452
	453	CurrentObject::CurrentObject() {}
	454	CurrentObject::CurrentObject( Type * type ) {
	455	objStack.push( new SimpleIterator( type ) );
	456	}
	457
	458
	459	void CurrentObject::setNext( Designation * designation ) {
	460	assertf( ! objStack.empty(), "obj stack empty in setNext" );
	461	PRINT( std::cerr << "____setNext" << designation << std::endl; )
	462	objStack.top()->setPosition( designation->get_designators() );
	463	}
	464
	465	Designation * CurrentObject::findNext( Designation * designation ) {
	466	typedef std::list< Expression * > DesignatorChain;
	467	PRINT( std::cerr << "___findNext" << std::endl; )
	468	// find all the d's
	469	std::list<DesignatorChain> desigAlts{ { } }, newDesigAlts;
	470	std::list<Type *> curTypes { (objStack.top())->getType() }, newTypes;
	471	for ( Expression * expr : designation->get_designators() ) {
	472	PRINT( std::cerr << "____untyped: " << expr << std::endl; )
	473	std::list<DesignatorChain>::iterator dit = desigAlts.begin();
	474	if ( NameExpr * nexpr = dynamic_cast<NameExpr *>(expr) ) {
	475	for ( Type * t : curTypes ) {
	476	assert( dit != desigAlts.end() );
	477	DesignatorChain & d = *dit;
	478	PRINT( std::cerr << "____actual: " << t << std::endl; )
	479	ReferenceToType * refType = dynamic_cast<ReferenceToType *>(t);
	480	std::list<Declaration *> members;
	481	if ( refType ) {
	482	refType->lookup( nexpr->get_name(), members ); // concatenate identical field name
	483	// xxx - need to also include anonymous members in this somehow...
	484	for ( Declaration * mem: members ) {
	485	if ( ObjectDecl * field = dynamic_cast<ObjectDecl *>(mem) ) {
	486	PRINT( std::cerr << "____alt: " << field->get_type() << std::endl; )
	487	DesignatorChain newD = d;
	488	newD.push_back( new VariableExpr( field ) );
	489	newDesigAlts.push_back( newD );
	490	newTypes.push_back( field->get_type() );
	491	} // if
	492	} // for
	493	} // if
	494	++dit;
	495	} // for
	496	} else {
	497	for ( Type * t : curTypes ) {
	498	assert( dit != desigAlts.end() );
	499	DesignatorChain & d = *dit;
	500	if ( ArrayType * at = dynamic_cast< ArrayType * > ( t ) ) {
	501	PRINT( std::cerr << "____alt: " << at->get_base() << std::endl; )
	502	d.push_back( expr );
	503	newDesigAlts.push_back( d );
	504	newTypes.push_back( at->get_base() );
	505	}
	506	++dit;
	507	} // for
	508	} // if
	509	desigAlts = newDesigAlts;
	510	newDesigAlts.clear();
	511	curTypes = newTypes;
	512	newTypes.clear();
[56e49b0]	513	assertf( desigAlts.size() == curTypes.size(), "Designator alternatives (%zu) and current types (%zu) out of sync", desigAlts.size(), curTypes.size() );
[e4d829b]	514	} // for
	515	if ( desigAlts.size() > 1 ) {
	516	throw SemanticError( toString("Too many alternatives (", desigAlts.size(), ") for designation: "), designation );
	517	} else if ( desigAlts.size() == 0 ) {
	518	throw SemanticError( "No reasonable alternatives for designation: ", designation );
	519	}
	520	DesignatorChain & d = desigAlts.back();
	521	PRINT( for ( Expression * expr : d ) {
	522	std::cerr << "____desig: " << expr << std::endl;
	523	} ) // for
	524	assertf( ! curTypes.empty(), "empty designator chosen");
	525
	526	// set new designators
	527	assertf( ! objStack.empty(), "empty object stack when setting designation" );
	528	Designation * actualDesignation = new Designation( d );
	529	objStack.top()->setPosition( d ); // destroys d
	530	return actualDesignation;
	531	}
	532
	533	void CurrentObject::increment() {
	534	PRINT( std::cerr << "____increment" << std::endl; )
	535	if ( ! objStack.empty() ) {
	536	PRINT( std::cerr << *objStack.top() << std::endl; )
	537	objStack.top()->smallStep();
	538	}
	539	}
	540
	541	void CurrentObject::enterListInit() {
	542	PRINT( std::cerr << "____entering list init" << std::endl; )
	543	assertf( ! objStack.empty(), "empty obj stack entering list init" );
	544	Type * type = objStack.top()->getNext();
	545	if ( type ) {
	546	objStack.push( createMemberIterator( type ) );
	547	} else {
	548	assertf( false, "not sure about this case..." );
	549	}
	550	}
	551
	552	void CurrentObject::exitListInit() {
	553	PRINT( std::cerr << "____exiting list init" << std::endl; )
	554	assertf( ! objStack.empty(), "objstack empty" );
	555	delete objStack.top();
	556	objStack.pop();
	557	if ( ! objStack.empty() ) {
	558	PRINT( std::cerr << *objStack.top() << std::endl; )
	559	objStack.top()->bigStep();
	560	}
	561	}
	562
	563	std::list< InitAlternative > CurrentObject::getOptions() {
	564	PRINT( std::cerr << "____getting current options" << std::endl; )
	565	assertf( ! objStack.empty(), "objstack empty in getOptions" );
	566	return **objStack.top();
	567	}
[62423350]	568
	569	Type * CurrentObject::getCurrentType() {
	570	PRINT( std::cerr << "____getting current type" << std::endl; )
	571	assertf( ! objStack.empty(), "objstack empty in getCurrentType" );
	572	return objStack.top()->getNext();
	573	}
[e4d829b]	574	} // namespace ResolvExpr
	575
	576	// Local Variables: //
	577	// tab-width: 4 //
	578	// mode: c++ //
	579	// compile-command: "make install" //
	580	// End: //

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