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// $Id$
// ============================================================================
//
// = LIBRARY
// TAO IDL
//
// = FILENAME
// be_union.h
//
// = DESCRIPTION
// Extension of class AST_Union that provides additional means for C++
// mapping.
//
// = AUTHOR
// Copyright 1994-1995 by Sun Microsystems, Inc.
// and
// Aniruddha Gokhale
//
// ============================================================================
#ifndef BE_UNION_H
#define BE_UNION_H
/*
* BE_Union
*/
class be_union : public virtual AST_Union,
public virtual be_scope,
public virtual be_type
{
public:
// =Operations
be_union (void);
// default constructor
be_union(AST_ConcreteType *dt, UTL_ScopedName *n, UTL_StrList *p);
// constructor
virtual int gen_var_defn (void);
// generate the _var class definition
virtual int gen_var_impl (void);
// generate the implementation for the _var class
virtual int gen_out_defn (void);
// generate the _out class definition
virtual int gen_out_impl (void);
// generate the _out implementation
virtual int gen_typecode (void);
// generate the typecode
virtual int gen_encapsulation (void);
// encapsulation for parameters
virtual long tc_size (void);
// return typecode size
virtual long tc_encap_len (void);
// return length of encapsulation
virtual int member_count (void);
// return the count of members
virtual int default_index (void);
// return the default index used
// Visiting
virtual int accept (be_visitor *visitor);
// Narrowing
DEF_NARROW_METHODS3 (be_union, AST_Union, be_scope, be_type);
DEF_NARROW_FROM_DECL(be_union);
DEF_NARROW_FROM_SCOPE(be_union);
protected:
virtual int compute_size_type (void);
// compute the size type if it is unknown
private:
//=helper
int compute_member_count (void);
// count the number of members
int compute_default_index (void);
// count the default index
int member_count_;
// number of members
int default_index_;
// default label index (zero based indexing)
};
#endif
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