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//=============================================================================
/**
* @file be_union.h
*
* $Id$
*
* Extension of class AST_Union that provides additional means for C++
* mapping.
*
*
* @author Copyright 1994-1995 by Sun Microsystems
* @author Inc. and Aniruddha Gokhale
*/
//=============================================================================
#ifndef BE_UNION_H
#define BE_UNION_H
#include "be_type.h"
#include "be_scope.h"
#include "ast_union.h"
class AST_ConcreteType;
class be_visitor;
class be_union : public virtual AST_Union,
public virtual be_scope,
public virtual be_type
{
public:
be_union (AST_ConcreteType *dt,
UTL_ScopedName *n,
bool local,
bool abstract);
/// Catch BE-specific member values before delegating to the base class.
virtual void redefine (AST_Structure *from);
/// Do we have at least one member with multiple case labels?
virtual bool has_duplicate_case_labels (void);
/// Overridden from class be_type.
virtual void gen_ostream_operator (TAO_OutStream *os,
bool use_underscore);
/// Cleanup function.
virtual void destroy (void);
/// Visiting.
virtual int accept (be_visitor *visitor);
/// Decides whether a default switch case label in the generated copy
/// constructor, assignment operator, etc. is needed.
bool gen_empty_default_label (void);
/// Just a way to get at fe_add_union_branch() from the backend.
AST_UnionBranch *be_add_union_branch (AST_UnionBranch *b);
/// Returns total number of labels, useful when the union has
/// multiple case labels.
ACE_UINT64 nlabels (void);
// Narrowing.
DEF_NARROW_FROM_DECL(be_union);
DEF_NARROW_FROM_SCOPE(be_union);
};
#endif
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