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|
//
// $Id$
//
// ============================================================================
//
// = LIBRARY
// TAO IDL
//
// = FILENAME
// field_ch.cpp
//
// = DESCRIPTION
// Visitor generating code for Field node in the client header
//
// = AUTHOR
// Aniruddha Gokhale
//
// ============================================================================
#include "idl.h"
#include "idl_extern.h"
#include "be.h"
#include "be_visitor_field.h"
ACE_RCSID(be_visitor_field, field_ch, "$Id$")
// **********************************************
// visitor for field in the client header file
// **********************************************
// constructor
be_visitor_field_ch::be_visitor_field_ch (be_visitor_context *ctx)
: be_visitor_decl (ctx)
{
}
// destructor
be_visitor_field_ch::~be_visitor_field_ch (void)
{
}
// visit the field node
int
be_visitor_field_ch::visit_field (be_field *node)
{
TAO_OutStream *os; // output stream
be_type *bt; // field's type
os = this->ctx_->stream ();
// first generate the type information
bt = be_type::narrow_from_decl (node->field_type ());
if (!bt)
{
ACE_ERROR_RETURN ((LM_ERROR,
"(%N:%l) be_visitor_field_ch::"
"visit_field - "
"Bad field type\n"
), -1);
}
this->ctx_->node (node); // save the node
if (bt->accept (this) == -1)
{
ACE_ERROR_RETURN ((LM_ERROR,
"(%N:%l) be_visitor_field_ch::"
"visit_field - "
"codegen for field type failed\n"
), -1);
}
// now output the field name. However, don't do it if the type was an
// anonymous array because generation of the field member got handled by the
// array code generation
if (bt->node_type () != AST_Decl::NT_array)
*os << " " << node->local_name () << ";\n";
return 0;
}
// =visit operations on all possible data types that a field can be
// visit array type
int
be_visitor_field_ch::visit_array (be_array *node)
{
TAO_OutStream *os; // output stream
be_type *bt;
os = this->ctx_->stream ();
// set the right type;
if (this->ctx_->alias ())
bt = this->ctx_->alias ();
else
bt = node;
// if not a typedef and we are defined in the use scope, we must be defined
if (!this->ctx_->alias () // not a typedef
&& node->is_child (this->ctx_->scope ()))
{
// this is the case for anonymous arrays.
// 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 struct 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_field_ch::"
"visit_array - "
"Bad visitor\n"
), -1);
}
if (node->accept (visitor) == -1)
{
ACE_ERROR_RETURN ((LM_ERROR,
"(%N:%l) be_visitor_field_ch::"
"visit_array - "
"codegen failed\n"
), -1);
}
delete visitor;
}
else
{
// this was a typedefed array
os->indent (); // start from current indentation level
*os << bt->nested_type_name (this->ctx_->scope ());
}
return 0;
}
// visit enum type
int
be_visitor_field_ch::visit_enum (be_enum *node)
{
TAO_OutStream *os; // output stream
be_type *bt;
os = this->ctx_->stream ();
// set the right type;
if (this->ctx_->alias ())
bt = this->ctx_->alias ();
else
bt = node;
// if not a typedef and we are defined in the use scope, we must be defined
if (!this->ctx_->alias () // not a typedef
&& node->is_child (this->ctx_->scope ()))
{
// 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_field_ch::"
"visit_enum - "
"Bad visitor\n"
), -1);
}
if (node->accept (visitor) == -1)
{
ACE_ERROR_RETURN ((LM_ERROR,
"(%N:%l) be_visitor_field_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 level
*os << bt->nested_type_name (this->ctx_->scope ());
return 0;
}
// visit interface type
int
be_visitor_field_ch::visit_interface (be_interface *node)
{
TAO_OutStream *os; // output stream
be_type *bt;
os = this->ctx_->stream ();
// set the right type;
if (this->ctx_->alias ())
bt = this->ctx_->alias ();
else
bt = node;
// if not a typedef and we are defined in the use scope, we must be defined
os->indent ();
*os << "TAO_Object_Field_T<"
<< bt->nested_type_name (this->ctx_->scope (), "")
<< ">";
return 0;
}
// visit interface forward type
int
be_visitor_field_ch::visit_interface_fwd (be_interface_fwd *node)
{
TAO_OutStream *os; // output stream
be_type *bt;
os = this->ctx_->stream ();
// set the right type;
if (this->ctx_->alias ())
bt = this->ctx_->alias ();
else
bt = node;
// if not a typedef and we are defined in the use scope, we must be defined
os->indent ();
*os << "TAO_Object_Field_T<"
<< bt->nested_type_name (this->ctx_->scope (), "")
<< ">";
return 0;
}
// visit predefined type
int
be_visitor_field_ch::visit_predefined_type (be_predefined_type *node)
{
TAO_OutStream *os; // output stream
be_type *bt;
os = this->ctx_->stream ();
// set the right type;
if (this->ctx_->alias ())
bt = this->ctx_->alias ();
else
bt = node;
// if not a typedef and we are defined in the use scope, we must be defined
os->indent (); // start from current indentation level
if (node->pt () == AST_PredefinedType::PT_pseudo) // is a psuedo obj
*os << bt->nested_type_name (this->ctx_->scope (), "_var");
else
*os << bt->nested_type_name (this->ctx_->scope ());
return 0;
}
// visit sequence type
int
be_visitor_field_ch::visit_sequence (be_sequence *node)
{
TAO_OutStream *os; // output stream
be_type *bt;
os = this->ctx_->stream ();
// set the right type;
if (this->ctx_->alias ())
bt = this->ctx_->alias ();
else
bt = node;
// if not a typedef and we are defined in the use scope, we must be defined
if (!this->ctx_->alias () // not a typedef
&& node->is_child (this->ctx_->scope ()))
{
// 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_field_ch::"
"visit_sequence - "
"Bad visitor\n"
), -1);
}
if (node->accept (visitor) == -1)
{
ACE_ERROR_RETURN ((LM_ERROR,
"(%N:%l) be_visitor_field_ch::"
"visit_sequence - "
"codegen failed\n"
), -1);
}
delete visitor;
}
os->indent (); // start from current indentation level
*os << bt->nested_type_name (this->ctx_->scope ());
return 0;
}
// visit string type
int
be_visitor_field_ch::visit_string (be_string *node)
{
TAO_OutStream *os; // output stream
os = this->ctx_->stream ();
os->indent (); // start from current indentation level
// set the right type;
if (this->ctx_->alias ())
{
*os << this->ctx_->alias ()->nested_type_name (this->ctx_->scope ())
<< "_var";
}
else
*os << "CORBA::String_var";
return 0;
}
// visit structure type
int
be_visitor_field_ch::visit_structure (be_structure *node)
{
TAO_OutStream *os; // output stream
be_type *bt;
os = this->ctx_->stream ();
// set the right type;
if (this->ctx_->alias ())
bt = this->ctx_->alias ();
else
bt = node;
// if not a typedef and we are defined in the use scope, we must be defined
if (!this->ctx_->alias () // not a typedef
&& node->is_child (this->ctx_->scope ()))
{
// 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 struct 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_field_ch::"
"visit_struct - "
"Bad visitor\n"
), -1);
}
if (node->accept (visitor) == -1)
{
ACE_ERROR_RETURN ((LM_ERROR,
"(%N:%l) be_visitor_field_ch::"
"visit_struct - "
"codegen failed\n"
), -1);
}
delete visitor;
}
os->indent (); // start from current indentation level
*os << bt->nested_type_name (this->ctx_->scope ());
return 0;
}
// visit typedefed type
int
be_visitor_field_ch::visit_typedef (be_typedef *node)
{
this->ctx_->alias (node); // save the node for use in code generation and
// indicate that the field of the field 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_field_spec_ch::"
"visit_typedef - "
"Bad primitive type\n"
), -1);
}
this->ctx_->alias (0);
return 0;
}
// visit union type
int
be_visitor_field_ch::visit_union (be_union *node)
{
TAO_OutStream *os; // output stream
be_type *bt;
os = this->ctx_->stream ();
// set the right type;
if (this->ctx_->alias ())
bt = this->ctx_->alias ();
else
bt = node;
// if not a typedef and we are defined in the use scope, we must be defined
if (!this->ctx_->alias () // not a typedef
&& node->is_child (this->ctx_->scope ()))
{
// 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_field_ch::"
"visit_enum - "
"Bad visitor\n"
), -1);
}
if (node->accept (visitor) == -1)
{
ACE_ERROR_RETURN ((LM_ERROR,
"(%N:%l) be_visitor_field_ch::"
"visit_enum - "
"codegen failed\n"
), -1);
}
delete visitor;
}
os->indent (); // start from current indentation level
*os << bt->nested_type_name (this->ctx_->scope ());
return 0;
}
|
