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//
// $Id$
//
/* -*- C++ -*- */
// ============================================================================
//
// = LIBRARY
// TAO_IDL_BE
//
// = FILENAME
// be_visitor_context.h
//
// = DESCRIPTION
// This class serves to provide all the necessary context information to the
// visitor as it generates code. This may include the scope inside which the
// code is generated, the output file that is being used, and others. This
// context information will be passed to the abstract/concrete visitor
// factory which in turn will use it to construct the right visitor.
//
// = AUTHOR
// Aniruddha Gokhale
//
// ============================================================================
#ifndef TAO_BE_VISITOR_CONTEXT_H
#define TAO_BE_VISITOR_CONTEXT_H
#include "ast_visitor_context.h"
#include "fe_utils.h"
#include "be_codegen.h"
class TAO_OutStream;
class be_decl;
class be_interface;
class be_typedef;
class be_attribute;
class be_scope;
// When interface is defined as macro redefine it as aceinterface
#if defined (interface)
# define aceinterface interface
# undef interface
#endif /* interface */
class be_visitor_context : public ast_visitor_context
{
public:
be_visitor_context (void);
// default constructor
be_visitor_context (const be_visitor_context &ctx);
// default constructor
~be_visitor_context (void);
// destructor
be_visitor_context &operator= (const be_visitor_context &ctx);
// assignment operator
// =helpers
void reset (void);
// reset the context
void stream (TAO_OutStream *os);
// set the output stream
TAO_OutStream *stream (void);
// get the stream
void scope (be_scope *scope);
// set the scope
be_scope *scope (void);
// get the scope in which code will be generated
void node (be_decl *node);
// current node being visited
be_decl *node (void);
// node being visited
void state (TAO_CodeGen::CG_STATE);
// code generation state
TAO_CodeGen::CG_STATE state (void);
// return the code generation state
void sub_state (TAO_CodeGen::CG_SUB_STATE);
// code generation state
TAO_CodeGen::CG_SUB_STATE sub_state (void);
// return the code generation state
void alias (be_typedef *node);
// set the alias node (if any)
be_typedef *alias (void);
// return the aliased node (if any)
void tdef (be_typedef *node);
// set the typedef node (if any)
be_typedef *tdef (void);
// return the typedef node (if any)
void attribute (be_attribute *attr);
// set the attribute node if any
be_attribute *attribute (void);
// get the attribute node
void exception (bool);
// is it the special ctor for exceptions?
bool exception (void);
// is it the special ctor for exceptions?
void comma (bool);
// scope supoorts generation of comma after each element
bool comma (void);
// are we supposed to generate a comma?
be_interface *interface (void) const;
void interface (be_interface *);
// In some cases we need to generate the objects of one interface as
// members of a derived visitor (the TIE classes are a good
// example). This field is use to hold the interface where we are
// *generating* code, as opposed to the interfaces where the methods
// or structures are defined.
const char *export_macro (void) const;
// return the export macro currently in force
const char *non_null_export_macro (void) const;
// if anyop export macro is empty, check stub.
private:
TAO_CodeGen::CG_STATE state_;
// code generation state
TAO_CodeGen::CG_SUB_STATE sub_state_;
// code generation state
TAO_OutStream *os_;
// current output stream
be_scope *scope_;
// current scope in which code is generated
be_decl *node_;
// current node
be_typedef *alias_;
// aliased node used as a scoped name to define IDL types.
be_typedef *tdef_;
// typedef node
be_attribute *attr_;
// attribute node stored here while generating its code
bool exception_;
// is it the special ctor for exceptions?
bool comma_;
// whether scope should generate a comma after every element
be_interface *interface_;
// See the method declaration above.
};
#if defined (interface)
# define interface aceinterface
#endif /* interface */
#endif /* BE_VISITOR_CONTEXT_H */
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