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//
// $Id$
//
// ============================================================================
//
// = LIBRARY
// TAO IDL
//
// = FILENAME
// public_ch.cpp
//
// = DESCRIPTION
// Visitor generating code for Union_branch in the public part.
//
// = AUTHOR
// Aniruddha Gokhale
//
// ============================================================================
#include "idl.h"
#include "idl_extern.h"
#include "be.h"
#include "be_visitor_union_branch.h"
ACE_RCSID(be_visitor_union_branch, public_ch, "$Id$")
// **********************************************
// visitor for union_branch in the client header file
// **********************************************
// constructor
be_visitor_union_branch_public_ch::be_visitor_union_branch_public_ch
(be_visitor_context *ctx)
: be_visitor_decl (ctx)
{
}
// destructor
be_visitor_union_branch_public_ch::~be_visitor_union_branch_public_ch (void)
{
}
// visit the union_branch node
int
be_visitor_union_branch_public_ch::visit_union_branch (be_union_branch *node)
{
be_type *bt = be_type::narrow_from_decl (node->field_type ());
if (!bt)
{
ACE_ERROR_RETURN ((LM_ERROR,
"(%N:%l) be_visitor_union_branch_public_ch::"
"visit_union_branch - "
"Bad union_branch type\n"
), -1);
}
this->ctx_->node (node); // save the node
if (bt->accept (this) == -1)
{
ACE_ERROR_RETURN ((LM_ERROR,
"(%N:%l) be_visitor_union_branch_public_ch::"
"visit_union_branch - "
"codegen for union_branch type failed\n"
), -1);
}
return 0;
}
// =visit operations on all possible data types that a union_branch can be
// visit array type
int
be_visitor_union_branch_public_ch::visit_array (be_array *node)
{
TAO_OutStream *os; // output stream
be_decl *ub = this->ctx_->node (); // get union branch member
be_decl *bu = this->ctx_->scope (); // get the enclosing union node
be_type *bt;
// check if we are visiting this via a visit to a typedef node
if (this->ctx_->alias ())
bt = this->ctx_->alias ();
else
bt = node;
if (!ub || !bu)
{
ACE_ERROR_RETURN ((LM_ERROR,
"(%N:%l) be_visitor_union_branch_public_ch::"
"visit_array - "
"bad context information\n"
), -1);
}
os = this->ctx_->stream ();
if (bt->node_type () != AST_Decl::NT_typedef // not a typedef
&& bt->is_child (bu)) // bt is defined inside the union
{
// this is the case of an anonymous array inside a union
// instantiate a visitor context with a copy of our context. This info
// will be modified based on what type of node we are visiting
be_visitor_context ctx (*this->ctx_);
ctx.node (node); // set the node to be the node being visited. The scope
// is still the same
// first generate the array declaration
ctx.state (TAO_CodeGen::TAO_ARRAY_CH);
be_visitor *visitor = tao_cg->make_visitor (&ctx);
if (!visitor)
{
ACE_ERROR_RETURN ((LM_ERROR,
"(%N:%l) be_visitor_union_branch_public_ch::"
"visit_array - "
"Bad visitor\n"
), -1);
}
if (node->accept (visitor) == -1)
{
ACE_ERROR_RETURN ((LM_ERROR,
"(%N:%l) be_visitor_union_branch_public_ch::"
"visit_array - "
"codegen failed\n"
), -1);
}
delete visitor;
// now use this array as a "type" for the subsequent declarator
os->indent (); // start from current indentation
// the set method
*os << "void " << ub->local_name () << " ("
<< "_" << bt->local_name () << ");// set" << be_nl;
// the get method
*os << "_" << bt->local_name () << "_slice * " << ub->local_name ()
<< " (void) const; // get method\n\n";
}
else
{
// now use this array as a "type" for the subsequent declarator
os->indent (); // start from current indentation
// the set method
*os << "void " << ub->local_name () << " ("
<< bt->nested_type_name (bu) << ");// set"
<< be_nl;
// the get method
*os << bt->nested_type_name (bu, "_slice *") << " " << ub->local_name ()
<< " (void) const; // get method\n\n";
}
return 0;
}
// visit enum type
int
be_visitor_union_branch_public_ch::visit_enum (be_enum *node)
{
TAO_OutStream *os; // output stream
be_decl *ub = this->ctx_->node (); // get union branch member
be_decl *bu = this->ctx_->scope (); // get the enclosing union node
be_type *bt;
// check if we are visiting this node via a visit to a typedef node
if (this->ctx_->alias ())
bt = this->ctx_->alias ();
else
bt = node;
if (!ub || !bu)
{
ACE_ERROR_RETURN ((LM_ERROR,
"(%N:%l) be_visitor_union_branch_public_ch::"
"visit_enum - "
"bad context information\n"
), -1);
}
os = this->ctx_->stream ();
if (bt->node_type () != AST_Decl::NT_typedef // not a typedef
&& bt->is_child (bu)) // bt is defined inside the union
{
// instantiate a visitor context with a copy of our context. This info
// will be modified based on what type of node we are visiting
be_visitor_context ctx (*this->ctx_);
ctx.node (node); // set the node to be the node being visited. The scope
// is still the same
// first generate the enum declaration
ctx.state (TAO_CodeGen::TAO_ENUM_CH);
be_visitor *visitor = tao_cg->make_visitor (&ctx);
if (!visitor)
{
ACE_ERROR_RETURN ((LM_ERROR,
"(%N:%l) be_visitor_union_branch_public_ch::"
"visit_enum - "
"Bad visitor\n"
), -1);
}
if (node->accept (visitor) == -1)
{
ACE_ERROR_RETURN ((LM_ERROR,
"(%N:%l) be_visitor_union_branch_public_ch::"
"visit_enum - "
"codegen failed\n"
), -1);
}
delete visitor;
}
// now use this enum as a "type" for the subsequent declarator
os->indent (); // start from current indentation
// the set method
*os << "void " << ub->local_name () << " ("
<< bt->nested_type_name (bu) << ");// set"
<< be_nl;
// the get method
*os << bt->nested_type_name (bu) << " " << ub->local_name ()
<< " (void) const; // get method\n\n";
return 0;
}
// visit interface type
int
be_visitor_union_branch_public_ch::visit_interface (be_interface *node)
{
TAO_OutStream *os; // output stream
be_decl *ub = this->ctx_->node (); // get union branch
be_decl *bu = this->ctx_->scope (); // get the enclosing union backend
be_type *bt;
// check if we are visiting this node via a visit to a typedef node
if (this->ctx_->alias ())
bt = this->ctx_->alias ();
else
bt = node;
if (!ub || !bu)
{
ACE_ERROR_RETURN ((LM_ERROR,
"(%N:%l) be_visitor_union_branch_public_ch::"
"visit_interface - "
"bad context information\n"
), -1);
}
os = this->ctx_->stream ();
os->indent (); // start from current indentation
// set method
*os << "void " << ub->local_name () << " ("
<< bt->nested_type_name (bu, "_ptr")
<< ");// set" << be_nl;
// get method
*os << bt->nested_type_name (bu, "_ptr") << " " << ub->local_name ()
<< " (void) const; // get method\n\n";
return 0;
}
// visit interface forward type
int
be_visitor_union_branch_public_ch::visit_interface_fwd (be_interface_fwd *node)
{
TAO_OutStream *os; // output stream
be_decl *ub = this->ctx_->node (); // get union branch
be_decl *bu = this->ctx_->scope (); // get the enclosing union backend
be_type *bt;
// check if we are visiting this node via a visit to a typedef node
if (this->ctx_->alias ())
bt = this->ctx_->alias ();
else
bt = node;
if (!ub || !bu)
{
ACE_ERROR_RETURN ((LM_ERROR,
"(%N:%l) be_visitor_union_branch_public_ch::"
"visit_interface_fwd - "
"bad context information\n"
), -1);
}
os = this->ctx_->stream ();
os->indent (); // start from current indentation
// set method
*os << "void " << ub->local_name () << " ("
<< bt->nested_type_name (bu, "_ptr")
<< ");// set" << be_nl;
// get method
*os << bt->nested_type_name (bu, "_ptr") << " " << ub->local_name ()
<< " (void) const; // get method\n\n";
return 0;
}
// visit predefined type
int
be_visitor_union_branch_public_ch::visit_predefined_type (be_predefined_type *node)
{
TAO_OutStream *os; // output stream
be_decl *ub = this->ctx_->node (); // get union branch
be_decl *bu = this->ctx_->scope (); // get the enclosing union backend
be_type *bt;
// check if we are visiting this node via a visit to a typedef node
if (this->ctx_->alias ())
bt = this->ctx_->alias ();
else
bt = node;
if (!ub || !bu)
{
ACE_ERROR_RETURN ((LM_ERROR,
"(%N:%l) be_visitor_union_branch_public_ch::"
"visit_predefined_type - "
"bad context information\n"
), -1);
}
os = this->ctx_->stream ();
os->indent (); // start from current indentation
switch (node->pt ())
{
case AST_PredefinedType::PT_pseudo:
// set method
*os << "void " << ub->local_name () << " ("
<< bt->nested_type_name (bu, "_ptr") << ");// set" << be_nl;
// get method
*os << bt->nested_type_name (bu, "_ptr") << " " << ub->local_name ()
<< " (void) const; // get method\n\n";
break;
case AST_PredefinedType::PT_any:
// set method
*os << "void " << ub->local_name () << " ("
<< bt->nested_type_name (bu) << ");// set" << be_nl;
// get method (read-only)
*os << "const " << bt->nested_type_name (bu) << " "
<< ub->local_name () << " (void) const; // get method\n\n";
// get method (read/write)
*os << bt->nested_type_name (bu) << " "
<< ub->local_name () << " (void); // get method\n\n";
break;
case AST_PredefinedType::PT_void:
break;
default:
// set method
*os << "void " << ub->local_name () << " ("
<< bt->nested_type_name (bu) << ");// set" << be_nl;
// get method
*os << bt->nested_type_name (bu) << " " << ub->local_name ()
<< " (void) const; // get method\n\n";
}
return 0;
}
// visit sequence type
int
be_visitor_union_branch_public_ch::visit_sequence (be_sequence *node)
{
TAO_OutStream *os; // output stream
be_decl *ub = this->ctx_->node (); // get union branch
be_decl *bu = this->ctx_->scope (); // get the enclosing union backend
be_type *bt;
// check if we are visiting this node via a visit to a typedef node
if (this->ctx_->alias ())
bt = this->ctx_->alias ();
else
bt = node;
if (!ub || !bu)
{
ACE_ERROR_RETURN ((LM_ERROR,
"(%N:%l) be_visitor_union_branch_public_ch::"
"visit_sequence - "
"bad context information\n"
), -1);
}
os = this->ctx_->stream ();
if (bt->node_type () != AST_Decl::NT_typedef // not a typedef
&& bt->is_child (bu)) // bt is defined inside the union
{
// instantiate a visitor context with a copy of our context. This info
// will be modified based on what type of node we are visiting
be_visitor_context ctx (*this->ctx_);
ctx.node (node); // set the node to be the node being visited. The scope
// is still the same
// first generate the sequence declaration
ctx.state (TAO_CodeGen::TAO_SEQUENCE_CH);
be_visitor *visitor = tao_cg->make_visitor (&ctx);
if (!visitor)
{
ACE_ERROR_RETURN ((LM_ERROR,
"(%N:%l) be_visitor_union_branch_public_ch::"
"visit_sequence - "
"Bad visitor\n"
), -1);
}
if (node->accept (visitor) == -1)
{
ACE_ERROR_RETURN ((LM_ERROR,
"(%N:%l) be_visitor_union_branch_public_ch::"
"visit_sequence - "
"codegen failed\n"
), -1);
}
delete visitor;
}
os->indent ();
// set method
*os << "void " << ub->local_name () << " (const "
<< bt->nested_type_name (bu) << " &);// set" << be_nl;
// read-only
*os << "const " << bt->nested_type_name (bu) << " &"
<< ub->local_name () << " (void) const; // get method (read only)"
<< be_nl;
// read/write
*os << bt->nested_type_name (bu) << " &" << ub->local_name ()
<< " (void); // get method (read/write only)\n\n";
return 0;
}
// visit string type
int
be_visitor_union_branch_public_ch::visit_string (be_string *node)
{
TAO_OutStream *os; // output stream
be_decl *ub = this->ctx_->node (); // get union branch
be_decl *bu = this->ctx_->scope (); // get the enclosing union backend
if (!ub || !bu)
{
ACE_ERROR_RETURN ((LM_ERROR,
"(%N:%l) be_visitor_union_branch_public_ch::"
"visit_string - "
"bad context information\n"
), -1);
}
os = this->ctx_->stream ();
os->indent ();
// three methods to set the string value
*os << "void " << ub->local_name () << " (char *); // set" << be_nl;
*os << "void " << ub->local_name () << " (const char *); // set"
<< be_nl;
*os << "void " << ub->local_name () << " (const CORBA::String_var&); // set"
<< be_nl;
//get method
*os << "const char *" << ub->local_name ()
<< " (void) const; // get method\n\n";
return 0;
}
// visit structure type
int
be_visitor_union_branch_public_ch::visit_structure (be_structure *node)
{
TAO_OutStream *os; // output stream
be_decl *ub = this->ctx_->node (); // get union branch
be_decl *bu = this->ctx_->scope (); // get the enclosing union backend
be_type *bt;
// check if we are visiting this node via a visit to a typedef node
if (this->ctx_->alias ())
bt = this->ctx_->alias ();
else
bt = node;
if (!ub || !bu)
{
ACE_ERROR_RETURN ((LM_ERROR,
"(%N:%l) be_visitor_union_branch_public_ch::"
"visit_structure - "
"bad context information\n"
), -1);
}
os = this->ctx_->stream ();
if (bt->node_type () != AST_Decl::NT_typedef // not a typedef
&& bt->is_child (bu)) // bt is defined inside the union
{
// instantiate a visitor context with a copy of our context. This info
// will be modified based on what type of node we are visiting
be_visitor_context ctx (*this->ctx_);
ctx.node (node); // set the node to be the node being visited. The scope
// is still the same
// first generate the sequence declaration
ctx.state (TAO_CodeGen::TAO_STRUCT_CH);
be_visitor *visitor = tao_cg->make_visitor (&ctx);
if (!visitor)
{
ACE_ERROR_RETURN ((LM_ERROR,
"(%N:%l) be_visitor_union_branch_public_ch::"
"visit_structure - "
"Bad visitor\n"
), -1);
}
if (node->accept (visitor) == -1)
{
ACE_ERROR_RETURN ((LM_ERROR,
"(%N:%l) be_visitor_union_branch_public_ch::"
"visit_structure - "
"codegen failed\n"
), -1);
}
delete visitor;
}
os->indent ();
// set method
*os << "void " << ub->local_name () << " (const "
<< bt->nested_type_name (bu) << " &);// set" << be_nl
// read-only
<< "const " << bt->nested_type_name (bu) << " &"
<< ub->local_name () << " (void) const; // get method (read only)"
<< be_nl
// read/write
<< bt->nested_type_name (bu) << " &" << ub->local_name ()
<< " (void); // get method (read/write only)\n\n";
return 0;
}
// visit typedefed type
int
be_visitor_union_branch_public_ch::visit_typedef (be_typedef *node)
{
TAO_OutStream *os; // output stream
os = this->ctx_->stream ();
os->indent (); // start from current indentation level
this->ctx_->alias (node); // save the node for use in code generation and
// indicate that the union_branch of the union_branch node
// is a typedefed quantity
// make a decision based on the primitive base type
be_type *bt = node->primitive_base_type ();
if (!bt || (bt->accept (this) == -1))
{
ACE_ERROR_RETURN ((LM_ERROR,
"(%N:%l) be_visitor_union_branch_spec_ch::"
"visit_typedef - "
"Bad primitive type\n"
), -1);
}
this->ctx_->alias (0);
return 0;
}
// visit union type
int
be_visitor_union_branch_public_ch::visit_union (be_union *node)
{
TAO_OutStream *os; // output stream
be_decl *ub = this->ctx_->node (); // get union branch
be_decl *bu = this->ctx_->scope (); // get the enclosing union backend
be_type *bt;
// check if we are visiting this node via a visit to a typedef node
if (this->ctx_->alias ())
bt = this->ctx_->alias ();
else
bt = node;
if (!ub || !bu)
{
ACE_ERROR_RETURN ((LM_ERROR,
"(%N:%l) be_visitor_union_branch_public_ch::"
"visit_union - "
"bad context information\n"
), -1);
}
os = this->ctx_->stream ();
if (bt->node_type () != AST_Decl::NT_typedef // not a typedef
&& bt->is_child (bu)) // bt is defined inside the union
{
// instantiate a visitor context with a copy of our context. This info
// will be modified based on what type of node we are visiting
be_visitor_context ctx (*this->ctx_);
ctx.node (node); // set the node to be the node being visited. The scope
// is still the same
// first generate the sequence declaration
ctx.state (TAO_CodeGen::TAO_STRUCT_CH);
be_visitor *visitor = tao_cg->make_visitor (&ctx);
if (!visitor)
{
ACE_ERROR_RETURN ((LM_ERROR,
"(%N:%l) be_visitor_union_branch_public_ch::"
"visit_union - "
"Bad visitor\n"
), -1);
}
if (node->accept (visitor) == -1)
{
ACE_ERROR_RETURN ((LM_ERROR,
"(%N:%l) be_visitor_union_branch_public_ch::"
"visit_union - "
"codegen failed\n"
), -1);
}
delete visitor;
}
os->indent ();
// set method
*os << "void " << ub->local_name () << " (const "
<< bt->nested_type_name (bu) << " &);// set" << be_nl
// read-only
<< "const " << bt->nested_type_name (bu) << " &"
<< ub->local_name () << " (void) const; // get method (read only)"
<< be_nl
// read/write
<< bt->nested_type_name (bu) << " &" << ub->local_name ()
<< " (void); // get method (read/write only)\n\n";
return 0;
}
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