//
// Cforall Version 1.0.0 Copyright (C) 2015 University of Waterloo
//
// The contents of this file are covered under the licence agreement in the
// file "LICENCE" distributed with Cforall.
//
// TypeData.cc --
//
// Author           : Rodolfo G. Esteves
// Created On       : Sat May 16 15:12:51 2015
// Last Modified By : Peter A. Buhr
// Last Modified On : Sun Aug 28 18:28:58 2016
// Update Count     : 223
//

#include <cassert>
#include <algorithm>
#include <iterator>
#include "Common/utility.h"
#include "TypeData.h"
#include "SynTree/Type.h"
#include "SynTree/Declaration.h"
#include "SynTree/Expression.h"
#include "SynTree/Statement.h"
#include "SynTree/Initializer.h"

TypeData::TypeData( Kind k ) : kind( k ), base( 0 ), forall( 0 ) {
	switch ( kind ) {
	  case Unknown:
	  case Pointer:
	  case EnumConstant:
		// nothing else to initialize
		break;
	  case Basic:
		basic = new Basic_t;
		break;
	  case Array:
		array = new Array_t;
		array->dimension = 0;
		array->isVarLen = false;
		array->isStatic = false;
		break;
	  case Function:
		function = new Function_t;
		function->params = 0;
		function->idList = 0;
		function->oldDeclList = 0;
		function->body = 0;
		function->hasBody = false;
		function->newStyle = false;
		break;
	  case Aggregate:
		aggregate = new Aggregate_t;
		aggregate->params = 0;
		aggregate->actuals = 0;
		aggregate->fields = 0;
		break;
	  case AggregateInst:
		aggInst = new AggInst_t;
		aggInst->aggregate = 0;
		aggInst->params = 0;
		break;
	  case Enum:
		enumeration = new Enumeration_t;
		enumeration->constants = 0;
		break;
	  case Symbolic:
	  case SymbolicInst:
		symbolic = new Symbolic_t;
		symbolic->params = 0;
		symbolic->actuals = 0;
		symbolic->assertions = 0;
		break;
	  case Variable:
		variable = new Variable_t;
		variable->tyClass = DeclarationNode::Type;
		variable->assertions = 0;
		break;
	  case Tuple:
		tuple = new Tuple_t;
		tuple->members = 0;
		break;
	  case Typeof:
		typeexpr = new Typeof_t;
		typeexpr->expr = 0;
		break;
	  case Builtin:
		builtin = new Builtin_t;
		break;
	  case Attr:
		attr = new Attr_t;
		attr->expr = 0;
		attr->type = 0;
		break;
	} // switch
} // TypeData::TypeData

TypeData::~TypeData() {
	delete base;
	delete forall;

	switch ( kind ) {
	  case Unknown:
	  case Pointer:
	  case EnumConstant:
		// nothing to destroy
		break;
	  case Basic:
		delete basic;
		break;
	  case Array:
		delete array->dimension;
		delete array;
		break;
	  case Function:
		delete function->params;
		delete function->idList;
		delete function->oldDeclList;
		delete function->body;
		delete function;
		break;
	  case Aggregate:
		delete aggregate->params;
		delete aggregate->actuals;
		delete aggregate->fields;
		delete aggregate;
		break;
	  case AggregateInst:
		delete aggInst->aggregate;
		delete aggInst->params;
		delete aggInst;
		break;
	  case Enum:
		delete enumeration->constants;
		delete enumeration;
		break;
	  case Symbolic:
	  case SymbolicInst:
		delete symbolic->params;
		delete symbolic->actuals;
		delete symbolic->assertions;
		delete symbolic;
		break;
	  case Variable:
		delete variable->assertions;
		delete variable;
		break;
	  case Tuple:
		delete tuple->members;
		delete tuple;
		break;
	  case Typeof:
		delete typeexpr->expr;
		delete typeexpr;
		break;
	  case Builtin:
		delete builtin;
		break;
	  case Attr:
		delete attr->expr;
		delete attr->type;
		delete attr;
		break;
	} // switch
} // TypeData::~TypeData

TypeData * TypeData::clone() const {
	TypeData * newtype = new TypeData( kind );
	newtype->qualifiers = qualifiers;
	newtype->base = maybeClone( base );
	newtype->forall = maybeClone( forall );

	switch ( kind ) {
	  case Unknown:
	  case EnumConstant:
	  case Pointer:
		// nothing else to copy
		break;
	  case Basic:
		newtype->basic->typeSpec = basic->typeSpec;
		newtype->basic->modifiers = basic->modifiers;
		break;
	  case Array:
		newtype->array->dimension = maybeClone( array->dimension );
		newtype->array->isVarLen = array->isVarLen;
		newtype->array->isStatic = array->isStatic;
		break;
	  case Function:
		newtype->function->params = maybeClone( function->params );
		newtype->function->idList = maybeClone( function->idList );
		newtype->function->oldDeclList = maybeClone( function->oldDeclList );
		newtype->function->body = maybeClone( function->body );
		newtype->function->hasBody = function->hasBody;
		newtype->function->newStyle = function->newStyle;
		break;
	  case Aggregate:
		newtype->aggregate->params = maybeClone( aggregate->params );
		newtype->aggregate->actuals = maybeClone( aggregate->actuals );
		newtype->aggregate->fields = maybeClone( aggregate->fields );
		newtype->aggregate->name = aggregate->name;
		newtype->aggregate->kind = aggregate->kind;
		newtype->aggregate->body = aggregate->body;
		break;
	  case AggregateInst:
		newtype->aggInst->aggregate = maybeClone( aggInst->aggregate );
		newtype->aggInst->params = maybeClone( aggInst->params );
		break;
	  case Enum:
		newtype->enumeration->name = enumeration->name;
		newtype->enumeration->constants = maybeClone( enumeration->constants );
		break;
	  case Symbolic:
	  case SymbolicInst:
		newtype->symbolic->params = maybeClone( symbolic->params );
		newtype->symbolic->actuals = maybeClone( symbolic->actuals );
		newtype->symbolic->assertions = maybeClone( symbolic->assertions );
		newtype->symbolic->isTypedef = symbolic->isTypedef;
		newtype->symbolic->name = symbolic->name;
		break;
	  case Variable:
		newtype->variable->assertions = maybeClone( variable->assertions );
		newtype->variable->name = variable->name;
		newtype->variable->tyClass = variable->tyClass;
		break;
	  case Tuple:
		newtype->tuple->members = maybeClone( tuple->members );
		break;
	  case Typeof:
		newtype->typeexpr->expr = maybeClone( typeexpr->expr );
		break;
	  case Builtin:
		newtype->builtin->type = builtin->type;
		break;
	  case Attr:
		newtype->attr->expr = maybeClone( attr->expr );
		newtype->attr->type = maybeClone( attr->type );
		break;
	} // switch
	return newtype;
} // TypeData::clone

void TypeData::print( std::ostream &os, int indent ) const {
	using std::endl;
	using std::string;

	for ( int i = 0; i < DeclarationNode::NoOfQualifier; i += 1 ) {
		if ( qualifiers[i] ) os << DeclarationNode::qualifierName[ i ] << ' ';
	} // for

	if ( forall ) {
		os << "forall " << endl;
		forall->printList( os, indent + 4 );
	} // if

	switch ( kind ) {
	  case Unknown:
		os << "entity of unknown type ";
		break;
	  case Pointer:
		os << "pointer ";
		if ( base ) {
			os << "to ";
			base->print( os, indent );
		} // if
		break;
	  case EnumConstant:
		os << "enumeration constant ";
		break;
	  case Basic:
		printEnums( basic->modifiers.begin(), basic->modifiers.end(), DeclarationNode::modifierName, os );
		printEnums( basic->typeSpec.begin(), basic->typeSpec.end(), DeclarationNode::basicTypeName, os );
		break;
	  case Array:
		if ( array->isStatic ) {
			os << "static ";
		} // if
		if ( array->dimension ) {
			os << "array of ";
			array->dimension->printOneLine( os, indent );
		} else if ( array->isVarLen ) {
			os << "variable-length array of ";
		} else {
			os << "open array of ";
		} // if
		if ( base ) {
			base->print( os, indent );
		} // if
		break;
	  case Function:
		os << "function" << endl;
		if ( function->params ) {
			os << string( indent + 2, ' ' ) << "with parameters " << endl;
			function->params->printList( os, indent + 4 );
		} else {
			os << string( indent + 2, ' ' ) << "with no parameters " << endl;
		} // if
		if ( function->idList ) {
			os << string( indent + 2, ' ' ) << "with old-style identifier list " << endl;
			function->idList->printList( os, indent + 4 );
		} // if
		if ( function->oldDeclList ) {
			os << string( indent + 2, ' ' ) << "with old-style declaration list " << endl;
			function->oldDeclList->printList( os, indent + 4 );
		} // if
		os << string( indent + 2, ' ' ) << "returning ";
		if ( base ) {
			base->print( os, indent + 4 );
		} else {
			os << "nothing ";
		} // if
		os << endl;
		if ( function->hasBody ) {
			os << string( indent + 2, ' ' ) << "with body " << endl;
		} // if
		if ( function->body ) {
			function->body->printList( os, indent + 2 );
		} // if
		break;
	  case Aggregate:
		os << DeclarationNode::aggregateName[ aggregate->kind ] << ' ' << aggregate->name << endl;
		if ( aggregate->params ) {
			os << string( indent + 2, ' ' ) << "with type parameters " << endl;
			aggregate->params->printList( os, indent + 4 );
		} // if
		if ( aggregate->actuals ) {
			os << string( indent + 2, ' ' ) << "instantiated with actual parameters " << endl;
			aggregate->actuals->printList( os, indent + 4 );
		} // if
		if ( aggregate->fields ) {
			os << string( indent + 2, ' ' ) << "with members " << endl;
			aggregate->fields->printList( os, indent + 4 );
		} // if
		if ( aggregate->body ) {
			os << string( indent + 2, ' ' ) << " with body " << endl;
		} // if
		break;
	  case AggregateInst:
		if ( aggInst->aggregate ) {
			os << "instance of " ;
			aggInst->aggregate->print( os, indent );
		} else {
			os << "instance of an unspecified aggregate ";
		} // if
		if ( aggInst->params ) {
			os << string( indent + 2, ' ' ) << "with parameters " << endl;
			aggInst->params->printList( os, indent + 2 );
		} // if
		break;
	  case Enum:
		os << "enumeration ";
		if ( enumeration->constants ) {
			os << "with constants" << endl;
			enumeration->constants->printList( os, indent + 2 );
		} // if
		break;
	  case SymbolicInst:
		os << "instance of type " << symbolic->name;
		if ( symbolic->actuals ) {
			os << " with parameters" << endl;
			symbolic->actuals->printList( os, indent + 2 );
		} // if
		break;
	  case Symbolic:
		if ( symbolic->isTypedef ) {
			os << "typedef definition ";
		} else {
			os << "type definition ";
		} // if
		if ( symbolic->params ) {
			os << endl << string( indent + 2, ' ' ) << "with parameters" << endl;
			symbolic->params->printList( os, indent + 2 );
		} // if
		if ( symbolic->assertions ) {
			os << endl << string( indent + 2, ' ' ) << "with assertions" << endl;
			symbolic->assertions->printList( os, indent + 4 );
			os << string( indent + 2, ' ' );
		} // if
		if ( base ) {
			os << "for ";
			base->print( os, indent + 2 );
		} // if
		break;
	  case Variable:
		os << DeclarationNode::typeClassName[ variable->tyClass ] << " variable ";
		if ( variable->assertions ) {
			os << endl << string( indent + 2, ' ' ) << "with assertions" << endl;
			variable->assertions->printList( os, indent + 4 );
			os << string( indent + 2, ' ' );
		} // if
		break;
	  case Tuple:
		os << "tuple ";
		if ( tuple->members ) {
			os << "with members " << endl;
			tuple->members->printList( os, indent + 2 );
		} // if
		break;
	  case Typeof:
		os << "type-of expression ";
		if ( typeexpr->expr ) {
			typeexpr->expr->print( os, indent + 2 );
		} // if
		break;
	  case Attr:
		os << "attribute type decl " << attr->name << " applied to ";
		if ( attr->expr ) {
			attr->expr->print( os, indent + 2 );
		} // if
		if ( attr->type ) {
			attr->type->print( os, indent + 2 );
		} // if
		break;
	  case Builtin:
		os << "gcc builtin type";
		break;
	  default:
		os << "internal error: TypeData::print " << kind  << endl;
		assert( false );
	} // switch
} // TypeData::print

void buildForall( const DeclarationNode * firstNode, std::list< TypeDecl* > &outputList ) {
	buildList( firstNode, outputList );
	for ( std::list< TypeDecl* >::iterator i = outputList.begin(); i != outputList.end(); ++i ) {
		if ( (*i)->get_kind() == TypeDecl::Any ) {
			// add assertion parameters to `type' tyvars in reverse order
			// add dtor:  void ^?{}(T *)
			FunctionType * dtorType = new FunctionType( Type::Qualifiers(), false );
			dtorType->get_parameters().push_back( new ObjectDecl( "", DeclarationNode::NoStorageClass, LinkageSpec::Cforall, 0, new PointerType( Type::Qualifiers(), new TypeInstType( Type::Qualifiers(), (*i)->get_name(), *i ) ), 0 ) );
			(*i)->get_assertions().push_front( new FunctionDecl( "^?{}", DeclarationNode::NoStorageClass, LinkageSpec::Cforall, dtorType, 0, false, false ) );

			// add copy ctor:  void ?{}(T *, T)
			FunctionType * copyCtorType = new FunctionType( Type::Qualifiers(), false );
			copyCtorType->get_parameters().push_back( new ObjectDecl( "", DeclarationNode::NoStorageClass, LinkageSpec::Cforall, 0, new PointerType( Type::Qualifiers(), new TypeInstType( Type::Qualifiers(), (*i)->get_name(), *i ) ), 0 ) );
			copyCtorType->get_parameters().push_back( new ObjectDecl( "", DeclarationNode::NoStorageClass, LinkageSpec::Cforall, 0, new TypeInstType( Type::Qualifiers(), (*i)->get_name(), *i ), 0 ) );
			(*i)->get_assertions().push_front( new FunctionDecl( "?{}", DeclarationNode::NoStorageClass, LinkageSpec::Cforall, copyCtorType, 0, false, false ) );

			// add default ctor:  void ?{}(T *)
			FunctionType * ctorType = new FunctionType( Type::Qualifiers(), false );
			ctorType->get_parameters().push_back( new ObjectDecl( "", DeclarationNode::NoStorageClass, LinkageSpec::Cforall, 0, new PointerType( Type::Qualifiers(), new TypeInstType( Type::Qualifiers(), (*i)->get_name(), *i ) ), 0 ) );
			(*i)->get_assertions().push_front( new FunctionDecl( "?{}", DeclarationNode::NoStorageClass, LinkageSpec::Cforall, ctorType, 0, false, false ) );

			// add assignment operator:  T * ?=?(T *, T)
			FunctionType * assignType = new FunctionType( Type::Qualifiers(), false );
			assignType->get_parameters().push_back( new ObjectDecl( "", DeclarationNode::NoStorageClass, LinkageSpec::Cforall, 0, new PointerType( Type::Qualifiers(), new TypeInstType( Type::Qualifiers(), (*i)->get_name(), *i ) ), 0 ) );
			assignType->get_parameters().push_back( new ObjectDecl( "", DeclarationNode::NoStorageClass, LinkageSpec::Cforall, 0, new TypeInstType( Type::Qualifiers(), (*i)->get_name(), *i ), 0 ) );
			assignType->get_returnVals().push_back( new ObjectDecl( "", DeclarationNode::NoStorageClass, LinkageSpec::Cforall, 0, new TypeInstType( Type::Qualifiers(), (*i)->get_name(), *i ), 0 ) );
			(*i)->get_assertions().push_front( new FunctionDecl( "?=?", DeclarationNode::NoStorageClass, LinkageSpec::Cforall, assignType, 0, false, false ) );
		} // if
	} // for
}

Type * typebuild( const TypeData * td ) {
	assert( td );
	switch ( td->kind ) {
	  case TypeData::Unknown:
		// fill in implicit int
		return new BasicType( buildQualifiers( td ), BasicType::SignedInt );
	  case TypeData::Basic:
		return buildBasicType( td );
	  case TypeData::Pointer:
		return buildPointer( td );
	  case TypeData::Array:
		return buildArray( td );
	  case TypeData::Function:
		return buildFunction( td );
	  case TypeData::AggregateInst:
		return buildAggInst( td );
	  case TypeData::EnumConstant:
		// the name gets filled in later -- by SymTab::Validate
		return new EnumInstType( buildQualifiers( td ), "" );
	  case TypeData::SymbolicInst:
		return buildSymbolicInst( td );;
	  case TypeData::Tuple:
		return buildTuple( td );
	  case TypeData::Typeof:
		return buildTypeof( td );
	  case TypeData::Builtin:
		return new VarArgsType( buildQualifiers( td ) );
	  case TypeData::Attr:
		return buildAttr( td );
	  case TypeData::Symbolic:
	  case TypeData::Enum:
	  case TypeData::Aggregate:
	  case TypeData::Variable:
		assert( false );
	} // switch
	return 0;
} // typebuild

TypeData * typeextractAggregate( const TypeData * td, bool toplevel ) {
	TypeData * ret = 0;

	switch ( td->kind ) {
	  case TypeData::Aggregate:
		if ( ! toplevel && td->aggregate->fields ) {
			ret = td->clone();
		} // if
		break;
	  case TypeData::Enum:
		if ( ! toplevel && td->enumeration->constants ) {
			ret = td->clone();
		} // if
		break;
	  case TypeData::AggregateInst:
		if ( td->aggInst->aggregate ) {
			ret = typeextractAggregate( td->aggInst->aggregate, false );
		} // if
		break;
	  default:
		if ( td->base ) {
			ret = typeextractAggregate( td->base, false );
		} // if
	} // switch
	return ret;
} // typeextractAggregate

Type::Qualifiers buildQualifiers( const TypeData * td ) {
	Type::Qualifiers q;
	q.isConst = td->qualifiers[ DeclarationNode::Const ];
	q.isVolatile = td->qualifiers[ DeclarationNode::Volatile ];
	q.isRestrict = td->qualifiers[ DeclarationNode::Restrict ];
	q.isLvalue = td->qualifiers[ DeclarationNode::Lvalue ];
	q.isAtomic = td->qualifiers[ DeclarationNode::Atomic ];;
	return q;
} // buildQualifiers

Type * buildBasicType( const TypeData * td ) {
	static const BasicType::Kind kindMap[] = { BasicType::Char, BasicType::SignedInt, BasicType::Float, BasicType::Double,
											   BasicType::Char /* void */, BasicType::Bool, BasicType::DoubleComplex,
											   BasicType::DoubleImaginary };
	bool init = false;
	bool sawDouble = false;
	bool sawSigned = false;
	BasicType::Kind ret;

	for ( std::list< DeclarationNode::BasicType >::const_iterator i = td->basic->typeSpec.begin(); i != td->basic->typeSpec.end(); ++i ) {
		if ( ! init ) {
			init = true;
			if ( *i == DeclarationNode::Void ) {
				if ( td->basic->typeSpec.size() != 1 || ! td->basic->modifiers.empty() ) {
					throw SemanticError( "invalid type specifier \"void\" in type: ", td );
				} else {
					return new VoidType( buildQualifiers( td ) );
				} // if
			} else {
				ret = kindMap[ *i ];
			} // if
		} else {
			switch ( *i ) {
			  case DeclarationNode::Float:
				if ( sawDouble ) {
					throw SemanticError( "invalid type specifier \"float\" in type: ", td );
				} else {
					switch ( ret ) {
					  case BasicType::DoubleComplex:
						ret = BasicType::FloatComplex;
						break;
					  case BasicType::DoubleImaginary:
						ret = BasicType::FloatImaginary;
						break;
					  default:
						throw SemanticError( "invalid type specifier \"float\" in type: ", td );
					} // switch
				} // if
				break;
			  case DeclarationNode::Double:
				if ( sawDouble ) {
					throw SemanticError( "duplicate type specifier \"double\" in type: ", td );
				} else {
					switch ( ret ) {
					  case BasicType::DoubleComplex:
					  case BasicType::DoubleImaginary:
						break;
					  default:
						throw SemanticError( "invalid type specifier \"double\" in type: ", td );
					} // switch
				} // if
				break;
			  case DeclarationNode::Complex:
				switch ( ret ) {
				  case BasicType::Float:
					ret = BasicType::FloatComplex;
					break;
				  case BasicType::Double:
					ret = BasicType::DoubleComplex;
					break;
				  default:
					throw SemanticError( "invalid type specifier \"_Complex\" in type: ", td );
				} // switch
				break;
			  case DeclarationNode::Imaginary:
				switch ( ret ) {
				  case BasicType::Float:
					ret = BasicType::FloatImaginary;
					break;
				  case BasicType::Double:
					ret = BasicType::DoubleImaginary;
					break;
				  default:
					throw SemanticError( "invalid type specifier \"_Imaginary\" in type: ", td );
				} // switch
				break;
			  default:
				throw SemanticError( std::string( "invalid type specifier \"" ) + DeclarationNode::basicTypeName[ *i ] + "\" in type: ", td );
			} // switch
		} // if
		if ( *i == DeclarationNode::Double ) {
			sawDouble = true;
		} // if
	} // for

	for ( std::list< DeclarationNode::Modifier >::const_iterator i = td->basic->modifiers.begin(); i != td->basic->modifiers.end(); ++i ) {
		switch ( *i ) {
		  case DeclarationNode::Long:
			if ( ! init ) {
				init = true;
				ret = BasicType::LongSignedInt;
			} else {
				switch ( ret ) {
				  case BasicType::SignedInt:
					ret = BasicType::LongSignedInt;
					break;
				  case BasicType::UnsignedInt:
					ret = BasicType::LongUnsignedInt;
					break;
				  case BasicType::LongSignedInt:
					ret = BasicType::LongLongSignedInt;
					break;
				  case BasicType::LongUnsignedInt:
					ret = BasicType::LongLongUnsignedInt;
					break;
				  case BasicType::Double:
					ret = BasicType::LongDouble;
					break;
				  case BasicType::DoubleComplex:
					ret = BasicType::LongDoubleComplex;
					break;
				  case BasicType::DoubleImaginary:
					ret = BasicType::LongDoubleImaginary;
					break;
				  default:
					throw SemanticError( "invalid type modifier \"long\" in type: ", td );
				} // switch
			} // if
			break;
		  case DeclarationNode::Short:
			if ( ! init ) {
				init = true;
				ret = BasicType::ShortSignedInt;
			} else {
				switch ( ret ) {
				  case BasicType::SignedInt:
					ret = BasicType::ShortSignedInt;
					break;
				  case BasicType::UnsignedInt:
					ret = BasicType::ShortUnsignedInt;
					break;
				  default:
					throw SemanticError( "invalid type modifier \"short\" in type: ", td );
				} // switch
			} // if
			break;
		  case DeclarationNode::Signed:
			if ( ! init ) {
				init = true;
				ret = BasicType::SignedInt;
			} else if ( sawSigned ) {
				throw SemanticError( "duplicate type modifer \"signed\" in type: ", td );
			} else {
				switch ( ret ) {
				  case BasicType::LongLongSignedInt:
					ret = BasicType::LongLongUnsignedInt;
					break;
				  case BasicType::LongSignedInt:
					ret = BasicType::LongUnsignedInt;
					break;
				  case BasicType::SignedInt:
				  case BasicType::ShortSignedInt:
					break;
				  case BasicType::Char:
					ret = BasicType::SignedChar;
					break;
				  default:
					throw SemanticError( "invalid type modifer \"signed\" in type: ", td );
				} // switch
			} // if
			break;
		  case DeclarationNode::Unsigned:
			if ( ! init ) {
				init = true;
				ret = BasicType::UnsignedInt;
			} else if ( sawSigned ) {
				throw SemanticError( "invalid type modifer \"unsigned\" in type: ", td );
			} else {
				switch ( ret ) {
				  case BasicType::LongLongSignedInt:
					ret = BasicType::LongLongUnsignedInt;
					break;
				  case BasicType::LongSignedInt:
					ret = BasicType::LongUnsignedInt;
					break;
				  case BasicType::SignedInt:
					ret = BasicType::UnsignedInt;
					break;
				  case BasicType::ShortSignedInt:
					ret = BasicType::ShortUnsignedInt;
					break;
				  case BasicType::Char:
					ret = BasicType::UnsignedChar;
					break;
				  default:
					throw SemanticError( "invalid type modifer \"unsigned\" in type: ", td );
				} // switch
			} // if
			break;
		} // switch

		if ( *i == DeclarationNode::Signed ) {
			sawSigned = true;
		} // if
	} // for

	BasicType * bt;
	if ( ! init ) {
		bt = new BasicType( buildQualifiers( td ), BasicType::SignedInt );
	} else {
		bt = new BasicType( buildQualifiers( td ), ret );
	} // if
	buildForall( td->forall, bt->get_forall() );
	return bt;
} // buildBasicType

PointerType * buildPointer( const TypeData * td ) {
	PointerType * pt;
	if ( td->base ) {
		pt = new PointerType( buildQualifiers( td ), typebuild( td->base ) );
	} else {
		pt = new PointerType( buildQualifiers( td ), new BasicType( Type::Qualifiers(), BasicType::SignedInt ) );
	} // if
	buildForall( td->forall, pt->get_forall() );
	return pt;
} // buildPointer

ArrayType * buildArray( const TypeData * td ) {
	ArrayType * at;
	if ( td->base ) {
		at = new ArrayType( buildQualifiers( td ), typebuild( td->base ), maybeBuild< Expression >( td->array->dimension ),
							td->array->isVarLen, td->array->isStatic );
	} else {
		at = new ArrayType( buildQualifiers( td ), new BasicType( Type::Qualifiers(), BasicType::SignedInt ),
							maybeBuild< Expression >( td->array->dimension ), td->array->isVarLen, td->array->isStatic );
	} // if
	buildForall( td->forall, at->get_forall() );
	return at;
} // buildPointer

AggregateDecl * buildAggregate( const TypeData * td ) {
	assert( td->kind == TypeData::Aggregate );
	AggregateDecl * at;
	switch ( td->aggregate->kind ) {
	  case DeclarationNode::Struct:
		at = new StructDecl( td->aggregate->name );
		buildForall( td->aggregate->params, at->get_parameters() );
		break;
	  case DeclarationNode::Union:
		at = new UnionDecl( td->aggregate->name );
		buildForall( td->aggregate->params, at->get_parameters() );
		break;
	  case DeclarationNode::Trait:
		at = new TraitDecl( td->aggregate->name );
		buildList( td->aggregate->params, at->get_parameters() );
		break;
	  default:
		assert( false );
	} // switch

	buildList( td->aggregate->fields, at->get_members() );
	at->set_body( td->aggregate->body );

	return at;
} // buildAggregate

ReferenceToType * buildAggInst( const TypeData * td ) {
	assert( td->kind == TypeData::AggregateInst );

	ReferenceToType * ret;
	if ( td->aggInst->aggregate->kind == TypeData::Enum ) {
		ret = new EnumInstType( buildQualifiers( td ), td->aggInst->aggregate->enumeration->name );
	} else {
		assert( td->aggInst->aggregate->kind == TypeData::Aggregate );
		switch ( td->aggInst->aggregate->aggregate->kind ) {
		  case DeclarationNode::Struct:
			ret = new StructInstType( buildQualifiers( td ), td->aggInst->aggregate->aggregate->name );
			break;
		  case DeclarationNode::Union:
			ret = new UnionInstType( buildQualifiers( td ), td->aggInst->aggregate->aggregate->name );
			break;
		  case DeclarationNode::Trait:
			ret = new TraitInstType( buildQualifiers( td ), td->aggInst->aggregate->aggregate->name );
			break;
		  default:
			assert( false );
		} // switch
	} // if
	buildList( td->aggInst->params, ret->get_parameters() );
	buildForall( td->forall, ret->get_forall() );
	return ret;
} // buildAggInst

NamedTypeDecl * buildSymbolic( const TypeData * td, const std::string & name, DeclarationNode::StorageClass sc ) {
	assert( td->kind == TypeData::Symbolic );
	NamedTypeDecl * ret;
	assert( td->base );
	if ( td->symbolic->isTypedef ) {
		ret = new TypedefDecl( name, sc, typebuild( td->base ) );
	} else {
		ret = new TypeDecl( name, sc, typebuild( td->base ), TypeDecl::Any );
	} // if
	buildList( td->symbolic->params, ret->get_parameters() );
	buildList( td->symbolic->assertions, ret->get_assertions() );
	return ret;
} // buildSymbolic

TypeDecl * buildVariable( const TypeData * td ) {
	assert( td->kind == TypeData::Variable );
	static const TypeDecl::Kind kindMap[] = { TypeDecl::Any, TypeDecl::Ftype, TypeDecl::Dtype };

	TypeDecl * ret = new TypeDecl( td->variable->name, DeclarationNode::NoStorageClass, 0, kindMap[ td->variable->tyClass ] );
	buildList( td->variable->assertions, ret->get_assertions() );
	return ret;
} // buildSymbolic

EnumDecl * buildEnum( const TypeData * td ) {
	assert( td->kind == TypeData::Enum );
	EnumDecl * ret = new EnumDecl( td->enumeration->name );
	buildList( td->enumeration->constants, ret->get_members() );
	std::list< Declaration * >::iterator members = ret->get_members().begin();
	for ( const DeclarationNode * cur = td->enumeration-> constants; cur != nullptr; cur = dynamic_cast< DeclarationNode * >( cur->get_next() ), ++members ) {
		if ( cur->has_enumeratorValue() ) {
			ObjectDecl * member = dynamic_cast< ObjectDecl * >(* members);
			member->set_init( new SingleInit( maybeMoveBuild< Expression >( cur->consume_enumeratorValue() ), std::list< Expression * >() ) );
		} // if
	} // for
	return ret;
} // buildEnum

TypeInstType * buildSymbolicInst( const TypeData * td ) {
	assert( td->kind == TypeData::SymbolicInst );
	TypeInstType * ret = new TypeInstType( buildQualifiers( td ), td->symbolic->name, false );
	buildList( td->symbolic->actuals, ret->get_parameters() );
	buildForall( td->forall, ret->get_forall() );
	return ret;
} // buildSymbolicInst

TupleType * buildTuple( const TypeData * td ) {
	assert( td->kind == TypeData::Tuple );
	TupleType * ret = new TupleType( buildQualifiers( td ) );
	buildTypeList( td->tuple->members, ret->get_types() );
	buildForall( td->forall, ret->get_forall() );
	return ret;
} // buildTuple

TypeofType * buildTypeof( const TypeData * td ) {
	assert( td->kind == TypeData::Typeof );
	assert( td->typeexpr );
	assert( td->typeexpr->expr );
	return new TypeofType( buildQualifiers( td ), td->typeexpr->expr->build() );
} // buildTypeof

AttrType * buildAttr( const TypeData * td ) {
	assert( td->kind == TypeData::Attr );
	assert( td->attr );
	AttrType * ret;
	if ( td->attr->expr ) {
		ret = new AttrType( buildQualifiers( td ), td->attr->name, td->attr->expr->build() );
	} else {
		assert( td->attr->type );
		ret = new AttrType( buildQualifiers( td ), td->attr->name, td->attr->type->buildType() );
	} // if
	return ret;
} // buildAttr

Declaration * buildDecl( const TypeData * td, std::string name, DeclarationNode::StorageClass sc, Expression * bitfieldWidth, bool isInline, bool isNoreturn, LinkageSpec::Spec linkage, Initializer * init ) {
	if ( td->kind == TypeData::Function ) {
		FunctionDecl * decl;
		if ( td->function->hasBody ) {
			if ( td->function->body ) {
				Statement * stmt = td->function->body->build();
				CompoundStmt * body = dynamic_cast< CompoundStmt* >( stmt );
				assert( body );
				decl = new FunctionDecl( name, sc, linkage, buildFunction( td ), body, isInline, isNoreturn );
			} else {
				// std::list< Label > ls;
				decl = new FunctionDecl( name, sc, linkage, buildFunction( td ), new CompoundStmt( std::list< Label >() ), isInline, isNoreturn );
			} // if
		} else {
			decl = new FunctionDecl( name, sc, linkage, buildFunction( td ), 0, isInline, isNoreturn );
		} // if
		for ( DeclarationNode * cur = td->function->idList; cur != 0; cur = dynamic_cast< DeclarationNode* >( cur->get_next() ) ) {
			if ( cur->get_name() != "" ) {
				decl->get_oldIdents().insert( decl->get_oldIdents().end(), cur->get_name() );
			} // if
		} // for
		buildList( td->function->oldDeclList, decl->get_oldDecls() );
		return decl;
	} else if ( td->kind == TypeData::Aggregate ) {
		return buildAggregate( td );
	} else if ( td->kind == TypeData::Enum ) {
		return buildEnum( td );
	} else if ( td->kind == TypeData::Symbolic ) {
		return buildSymbolic( td, name, sc );
	} else if ( td->kind == TypeData::Variable ) {
		return buildVariable( td );
	} else {
		return new ObjectDecl( name, sc, linkage, bitfieldWidth, typebuild( td ), init, std::list< Attribute * >(), isInline, isNoreturn );
	} // if
	return 0;
} // buildDecl

FunctionType * buildFunction( const TypeData * td ) {
	assert( td->kind == TypeData::Function );
	bool hasEllipsis = td->function->params ? td->function->params->get_hasEllipsis() : true;
	if ( ! td->function->params ) hasEllipsis = ! td->function->newStyle;
	FunctionType * ft = new FunctionType( buildQualifiers( td ), hasEllipsis );
	buildList( td->function->params, ft->get_parameters() );
	buildForall( td->forall, ft->get_forall() );
	if ( td->base ) {
		switch ( td->base->kind ) {
		  case TypeData::Tuple:
			buildList( td->base->tuple->members, ft->get_returnVals() );
			break;
		  default:
			ft->get_returnVals().push_back( dynamic_cast< DeclarationWithType* >( buildDecl( td->base,  "", DeclarationNode::NoStorageClass, 0, false, false, LinkageSpec::Cforall ) ) );
		} // switch
	} else {
		ft->get_returnVals().push_back( new ObjectDecl( "", DeclarationNode::NoStorageClass, LinkageSpec::Cforall, 0, new BasicType( Type::Qualifiers(), BasicType::SignedInt ), 0 ) );
	} // if
	return ft;
} // buildFunction

// Local Variables: //
// tab-width: 4 //
// mode: c++ //
// compile-command: "make install" //
// End: //