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// $Id$
// ============================================================================
//
// = LIBRARY
// TAO IDL
//
// = FILENAME
// be_operation.h
//
// = DESCRIPTION
// Extension of class AST_Operation that provides additional means for C++
// mapping.
//
// = AUTHOR
// Copyright 1994-1995 by Sun Microsystems, Inc.
// and
// Aniruddha Gokhale
//
// ============================================================================
#ifndef BE_OPERATION_H
#define BE_OPERATION_H
#include "be_scope.h"
#include "be_decl.h"
#include "ast_operation.h"
#include "be_operation_strategy.h"
class AST_Type;
class UTL_StrList;
class be_visitor;
class be_argument;
/*
* BE_Operation
*/
class be_operation : public virtual AST_Operation,
public virtual be_scope,
public virtual be_decl
{
public:
// =Operations
be_operation (void);
// default constructor
be_operation (AST_Type *rt, AST_Operation::Flags fl, UTL_ScopedName *n,
UTL_StrList *p);
// constructor
~be_operation ();
// destructor
int void_return_type ();
// Returns 1 if the operation has a void return type.
virtual int argument_count (void);
// return the count of members
virtual int has_native (void);
// Any of the arguments or the return value is a <native> type.
// This is important because in that case no code should be
// generated for the stubs.
be_argument *add_argument_to_scope (be_argument *arg);
// add an argument to the scope
// Visiting
virtual int accept (be_visitor *visitor);
be_operation_strategy *set_strategy (be_operation_strategy *new_strategy);
TAO_CodeGen::CG_STATE next_state (TAO_CodeGen::CG_STATE current_state,
int is_extra_state = 0);
// decide on the next state
int has_extra_code_generation (TAO_CodeGen::CG_STATE current_state);
// returns true if we have to genrate extra code.
be_operation *marshaling ();
// returns the operation containing special marshaling information,
// this makes sense if not all arguments get marshaled, e.g. AMI
// sendc_ operations
be_operation *arguments ();
// returns a customized arguments list, e.g. AMI sendc_ operations
// only use the in and inout arguments but not the out arguments,
// also the first argument is the reply handler.
// Narrowing
DEF_NARROW_METHODS3 (be_operation, AST_Operation, be_scope, be_decl);
DEF_NARROW_FROM_DECL (be_operation);
DEF_NARROW_FROM_SCOPE (be_operation);
protected:
//=helper
int compute_size_type (void);
// compute the size type if it is unknown
int compute_argument_attr (void);
// count the number of arguments
int argument_count_;
// number of arguments
int has_native_;
// Is any argument of type native.
be_operation_strategy *strategy_;
// Member for holding the strategy for covering
// differences between various operations, e.g. sendc_, raise_
// operations in the AMI spec.
};
#endif
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