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//
// $Id$
//
// ============================================================================
//
// = LIBRARY
// TAO IDL
//
// = FILENAME
// be_visitor_structure.cpp
//
// = DESCRIPTION
// Visitors for generation of code for Structure
//
// = AUTHOR
// Aniruddha Gokhale
//
// ============================================================================
#include "idl.h"
#include "idl_extern.h"
#include "be.h"
#include "be_visitor_structure.h"
// generic struct visitor
be_visitor_structure::be_visitor_structure (be_visitor_context *ctx)
: be_visitor_scope (ctx)
{
}
be_visitor_structure::~be_visitor_structure (void)
{
}
// visit the Structure node and its scope
int
be_visitor_structure::visit_structure (be_structure *node)
{
return -1; // must be overriden
}
int
be_visitor_structure::visit_field (be_field *node)
{
// 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
// this switch is acceptable rather than having derived visitors overriding
// this method and differing only in what state they set
switch (this->ctx_->state ())
{
case TAO_CodeGen::TAO_STRUCT_CH:
ctx.state (TAO_CodeGen::TAO_FIELD_CH);
break;
case TAO_CodeGen::TAO_STRUCT_CI:
ctx.state (TAO_CodeGen::TAO_FIELD_CI);
break;
case TAO_CodeGen::TAO_STRUCT_CS:
ctx.state (TAO_CodeGen::TAO_FIELD_CS);
break;
default:
{
ACE_ERROR_RETURN ((LM_ERROR,
"(%N:%l) be_visitor_structure::"
"visit_field - "
"Bad context state\n"
), -1);
}
break;
}
be_visitor *visitor = tao_cg->make_visitor (&ctx);
if (!visitor)
{
ACE_ERROR_RETURN ((LM_ERROR,
"(%N:%l) be_visitor_structure::"
"visit_field - "
"NUL visitor\n"
), -1);
}
// let the node accept this visitor
if (node->accept (visitor) == -1)
{
ACE_ERROR_RETURN ((LM_ERROR,
"(%N:%l) be_visitor_structure::"
"visit_field - "
"failed to accept visitor\n"
), -1);
}
delete visitor;
return 0;
}
// ******************************************************
// for client header
// ******************************************************
be_visitor_structure_ch::be_visitor_structure_ch (be_visitor_context *ctx)
: be_visitor_structure (ctx)
{
}
be_visitor_structure_ch::~be_visitor_structure_ch (void)
{
}
// visit the Structure node and its scope
int be_visitor_structure_ch::visit_structure (be_structure *node)
{
TAO_OutStream *os; // output stream
if (!node->cli_hdr_gen () && !node->imported ()) // not already generated and
// not imported
{
os = this->ctx_->stream ();
os->indent (); // start from whatever indentation level we were at
*os << "struct " << node->local_name () << be_nl
<< "{" << be_idt << "\n";
// generate code for field members
if (this->visit_scope (node) == -1)
{
ACE_ERROR_RETURN ((LM_ERROR,
"(%N:%l) be_visitor_structure_ch::"
"visit_structure - "
"codegen for scope failed\n"), -1);
}
os->decr_indent ();
*os << "};\n\n";
// generate var defn
if (node->gen_var_defn () == -1)
{
ACE_ERROR_RETURN ((LM_ERROR,
"(%N:%l) be_visitor_structure_ch::"
"visit_structure - "
"codegen for _var failed\n"), -1);
}
// a class is generated for an out defn only for a variable length struct
if (node->size_type () == be_decl::VARIABLE)
{
if (node->gen_out_defn () == -1)
{
ACE_ERROR_RETURN ((LM_ERROR,
"(%N:%l) be_visitor_structure_ch::"
"visit_structure - "
"codegen for _out failed\n"), -1);
}
}
else
{
os->indent ();
*os << "typedef " << node->local_name () << " &" << node->local_name
() << "_out;\n\n";
}
// generate the typecode decl
if (node->is_nested ())
{
// we have a scoped name
os->indent ();
*os << "static CORBA::TypeCode_ptr " << node->tc_name
()->last_component () << ";\n\n";
}
else
{
// we are in the ROOT scope
os->indent ();
*os << "extern CORBA::TypeCode_ptr " << node->tc_name
()->last_component () << ";\n\n";
}
node->cli_hdr_gen (I_TRUE);
}
return 0;
}
// ******************************************************
// for client inline
// ******************************************************
be_visitor_structure_ci::be_visitor_structure_ci (be_visitor_context *ctx)
: be_visitor_structure (ctx)
{
}
be_visitor_structure_ci::~be_visitor_structure_ci (void)
{
}
// visit the Structure node and its scope
int be_visitor_structure_ci::visit_structure (be_structure *node)
{
if (!node->cli_inline_gen () && !node->imported ())
{
if (node->gen_var_impl () == -1)
{
ACE_ERROR_RETURN ((LM_ERROR,
"(%N:%l) be_visitor_structure_ci::"
"visit_structure - "
"codegen for _var failed\n"), -1);
}
if (node->size_type () == be_decl::VARIABLE &&
node->gen_out_impl () == -1)
{
ACE_ERROR_RETURN ((LM_ERROR,
"(%N:%l) be_visitor_structure_ci::"
"visit_structure - "
"codegen for _out failed\n"), -1);
}
// all we have to do is to visit the scope
if (this->visit_scope (node) == -1)
{
ACE_ERROR_RETURN ((LM_ERROR,
"(%N:%l) be_visitor_structure_ci::"
"visit_structure - "
"codegen for scope failed\n"), -1);
}
node->cli_inline_gen (I_TRUE);
}
return 0;
}
// ***************************************************************************
// for client stubs
// ***************************************************************************
be_visitor_structure_cs::be_visitor_structure_cs (be_visitor_context *ctx)
: be_visitor_structure (ctx)
{
}
be_visitor_structure_cs::~be_visitor_structure_cs (void)
{
}
// visit the Structure_Cs node and its scope
int be_visitor_structure_cs::visit_structure (be_structure *node)
{
TAO_OutStream *os; // output stream
if (!node->cli_stub_gen () && !node->imported ())
{
os = this->ctx_->stream ();
// generate the typecode information here
os->indent (); // start from current indentation level
*os << "static const CORBA::Long _oc_" << node->flatname () << "[] =" <<
be_nl;
*os << "{\n";
os->incr_indent (0);
// note that we just need the parameters here and hence we generate the
// encapsulation for the parameters
if (node->gen_encapsulation () == -1)
{
ACE_ERROR_RETURN ((LM_ERROR,
"(%N:%l) be_visitor_structure_cs::"
"visit_structure - "
"codegen for typecode failed\n"), -1);
}
os->decr_indent ();
*os << "};" << be_nl;
*os << "static CORBA::TypeCode _tc__tc_" << node->flatname () <<
" (CORBA::tk_struct, sizeof (_oc_" << node->flatname () <<
"), (char *) &_oc_" << node->flatname () <<
", CORBA::B_FALSE);" << be_nl;
*os << "CORBA::TypeCode_ptr " << node->tc_name () << " = &_tc__tc_" <<
node->flatname () << ";\n\n";
// do any code generation required for the scope members
// all we have to do is to visit the scope
if (this->visit_scope (node) == -1)
{
ACE_ERROR_RETURN ((LM_ERROR,
"(%N:%l) be_visitor_structure_cs::"
"visit_structure - "
"codegen for scope failed\n"), -1);
}
node->cli_stub_gen (I_TRUE);
}
return 0;
}
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