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// $Id$
//
// ============================================================================
//
// = LIBRARY
// TAO IDL
//
// = FILENAME
// be_state_exception.cpp
//
// = DESCRIPTION
// state based code generation for exceptions.
//
// = AUTHOR
// Aniruddha Gokhale
//
// ============================================================================
#include "idl.h"
#include "idl_extern.h"
#include "be.h"
be_state_exception::be_state_exception (void)
{
}
// generate code for exception member
int
be_state_exception ::gen_code (be_type *bt, be_decl *d, be_type *type)
{
TAO_OutStream *os; // output stream
TAO_CodeGen *cg = TAO_CODEGEN::instance ();
be_field *f; // field node
be_exception *bexcp; // enclosing exception node
switch (cg->state ())
{
case TAO_CodeGen::TAO_EXCEPTION_CH: // used for defining members
case TAO_CodeGen::TAO_EXCEPTION_CTOR_CH: // used for defining the
// parameters to the special
// constructor
os = cg->client_header ();
break;
case TAO_CodeGen::TAO_EXCEPTION_CI: // for generating inline functions for
// specific anonymous types
os = cg->client_inline ();
break;
case TAO_CodeGen::TAO_EXCEPTION_CS: // for copy ctor and assignment op
case TAO_CodeGen::TAO_EXCEPTION_CTOR_CS: // for the parameters of the
// special constructor
case TAO_CodeGen::TAO_EXCEPTION_CTOR_ASSIGN_CS: // for assigning to members
// inside the special ctor
os = cg->client_stubs ();
break;
default:
os = 0; // Force a seg fault. At least os will have a known value.
}
f = be_field::narrow_from_decl (d); // downcast to field node
if (!f)
{
ACE_ERROR_RETURN ((LM_ERROR,
"(%N:%l) be_state_exception.cpp - "
"Bad field\n"),
-1);
}
// retrieve the exception node
bexcp = be_exception::narrow_from_scope (f->defined_in ());
if (!bexcp)
{
ACE_ERROR_RETURN ((LM_ERROR,
"(%N:%l) be_state_exception.cpp - "
"Bad exception\n"),
-1);
}
// pass the field node just incase it is needed to generate definition for
// sequence
cg->node (f);
if (!type) // not a recursive call
type = bt;
else // recursively called thru a typedef. "type" will have the most primitive
// base class of the typedef
ACE_ASSERT (bt->node_type () == AST_Decl::NT_typedef);
// generate code based on type.
switch (type->node_type ())
{
case AST_Decl::NT_interface: // type is an obj reference
{
switch (cg->state ())
{
case TAO_CodeGen::TAO_EXCEPTION_CH:
{
os->indent (); // start from current indentation
*os << bt->nested_type_name (bexcp, "_var") << " " << f->local_name
() << ";\n";
}
break;
case TAO_CodeGen::TAO_EXCEPTION_CS:
{
// assign
os->indent (); // start with current indentation
*os << "this->" << f->local_name () << " = _tao_excp." <<
f->local_name () << ";\n";
}
break;
case TAO_CodeGen::TAO_EXCEPTION_CTOR_CH:
{
*os << "const " << bt->nested_type_name (bexcp, "_ptr") << "&";
}
break;
case TAO_CodeGen::TAO_EXCEPTION_CTOR_CS:
{
*os << "const " << bt->name () << "_ptr &_tao_" << f->local_name
();
}
break;
case TAO_CodeGen::TAO_EXCEPTION_CTOR_ASSIGN_CS:
{
// assign
os->indent (); // start with current indentation
*os << "this->" << f->local_name () << " = _tao_" <<
f->local_name () << ";\n";
}
break;
case TAO_CodeGen::TAO_EXCEPTION_CI:
break;
default:
{
ACE_ERROR_RETURN ((LM_ERROR,
"(%N:%l) be_state_exception - unknown state\n"), -1);
}
} // end switch state
} // end case interface
break;
case AST_Decl::NT_pre_defined: // type is predefined type
{
be_predefined_type *bpd = be_predefined_type::narrow_from_decl (type);
if (!bpd)
{
ACE_ERROR_RETURN ((LM_ERROR,
"(%N:%l) be_state_exception - "
"bad predefined type\n"), -1);
}
switch (cg->state ())
{
case TAO_CodeGen::TAO_EXCEPTION_CH:
{
switch (bpd->pt ())
{
case AST_PredefinedType::PT_pseudo:
{
os->indent (); // start from current indentation
*os << bt->nested_type_name (bexcp, "_var") << " " <<
f->local_name () << ";\n";
}
break;
default:
{
os->indent (); // start from current indentation
*os << bt->nested_type_name (bexcp) << " " << f->local_name
() << ";\n";
}
} // end of switch state
}
break;
case TAO_CodeGen::TAO_EXCEPTION_CS:
{
// assign
os->indent (); // start with current indentation
*os << "this->" << f->local_name () << " = _tao_excp." <<
f->local_name () << ";\n";
}
break;
case TAO_CodeGen::TAO_EXCEPTION_CTOR_CH:
{
switch (bpd->pt ())
{
case AST_PredefinedType::PT_pseudo:
{
*os << "const " << bt->nested_type_name (bexcp, "_ptr") <<
"&";
}
break;
default:
{
*os << "const " << bt->nested_type_name (bexcp);
}
}
}
break;
case TAO_CodeGen::TAO_EXCEPTION_CTOR_CS:
{
switch (bpd->pt ())
{
case AST_PredefinedType::PT_pseudo:
{
*os << "const " << bt->name () << "_ptr &_tao_" <<
f->local_name ();
}
break;
default:
{
*os << "const " << bt->name () << " _tao_" <<
f->local_name ();
}
}
}
break;
case TAO_CodeGen::TAO_EXCEPTION_CTOR_ASSIGN_CS:
{
// assign
os->indent (); // start with current indentation
*os << "this->" << f->local_name () << " = _tao_" <<
f->local_name () << ";\n";
}
break;
case TAO_CodeGen::TAO_EXCEPTION_CI:
break;
default:
{
ACE_ERROR_RETURN ((LM_ERROR,
"(%N:%l) be_state_exception - unknown state\n"), -1);
}
} // end switch state
}
break;
case AST_Decl::NT_string: // type is a string
{
switch (cg->state ())
{
case TAO_CodeGen::TAO_EXCEPTION_CH:
{
os->indent (); // start from current indentation
if (bt->node_type () == AST_Decl::NT_typedef)
{
*os << bt->nested_type_name (bexcp, "_var") << " " <<
f->local_name () << ";\n";
}
else
{
*os << "CORBA::String_var " << f->local_name () << ";\n";
}
}
break;
case TAO_CodeGen::TAO_EXCEPTION_CS:
{
// assign
os->indent (); // start with current indentation
*os << "this->" << f->local_name () << " = _tao_excp." <<
f->local_name () << ";\n";
}
break;
case TAO_CodeGen::TAO_EXCEPTION_CTOR_CH:
{
if (bt->node_type () == AST_Decl::NT_typedef)
{
*os << "const " << bt->nested_type_name (bexcp);
}
else
{
*os << "const char*";
}
}
break;
case TAO_CodeGen::TAO_EXCEPTION_CTOR_CS:
{
if (bt->node_type () == AST_Decl::NT_typedef)
{
*os << "const " << bt->name () << " _tao_" << f->local_name
();
}
else
{
*os << "const char* _tao_" << f->local_name ();
}
}
break;
case TAO_CodeGen::TAO_EXCEPTION_CTOR_ASSIGN_CS:
{
// assign
os->indent (); // start with current indentation
*os << "this->" << f->local_name () << " = _tao_" <<
f->local_name () << ";\n";
}
break;
case TAO_CodeGen::TAO_EXCEPTION_CI:
break;
default:
{
ACE_ERROR_RETURN ((LM_ERROR,
"(%N:%l) be_state_exception - unknown state\n"), -1);
}
} // end switch state
}
break;
// these are all anonymous types
case AST_Decl::NT_array: // type is an array
case AST_Decl::NT_sequence: // type is a sequence
case AST_Decl::NT_enum: // type is an enum
case AST_Decl::NT_union: // type is a union
{
switch (cg->state ())
{
case TAO_CodeGen::TAO_EXCEPTION_CH:
{
// We first need to generate code for this aggregate type. Check
// if we are not called recursively thru a typedef
if (bt->node_type () != AST_Decl::NT_typedef
&& !bt->imported ())
if (bt->gen_client_header () == -1)
{
ACE_ERROR_RETURN ((LM_ERROR,
"(%N:%l) be_state_exception - "
"error generating code for type\n"),
-1);
}
os->indent ();
*os << bt->nested_type_name (bexcp) << " " << f->local_name () <<
";\n";
}
break;
case TAO_CodeGen::TAO_EXCEPTION_CI:
{
// We first need to generate code for this aggregate type. Check
// if we are not called recursively thru a typedef
if (bt->node_type () != AST_Decl::NT_typedef
&& !bt->imported ())
if (bt->gen_client_inline () == -1)
{
ACE_ERROR_RETURN ((LM_ERROR,
"(%N:%l) be_state_exception - "
"error generating code for type\n"),
-1);
}
}
break;
case TAO_CodeGen::TAO_EXCEPTION_CS:
{
// We first need to generate code for this aggregate type. Check
// if we are not called recursively thru a typedef
if (bt->node_type () != AST_Decl::NT_typedef
&& !bt->imported ())
if (bt->gen_client_stubs () == -1)
{
ACE_ERROR_RETURN ((LM_ERROR,
"(%N:%l) be_state_exception - "
"error generating code for type\n"),
-1);
}
// assign
os->indent (); // start with current indentation
*os << "this->" << f->local_name () << " = _tao_excp." <<
f->local_name () << ";\n";
}
break;
case TAO_CodeGen::TAO_EXCEPTION_CTOR_CH:
{
*os << "const " << bt->nested_type_name (bexcp) << "&";
}
break;
case TAO_CodeGen::TAO_EXCEPTION_CTOR_CS:
{
*os << "const " << bt->name () << "&_tao_" << f->local_name ();
}
break;
case TAO_CodeGen::TAO_EXCEPTION_CTOR_ASSIGN_CS:
{
// assign
os->indent (); // start with current indentation
*os << "this->" << f->local_name () << " = _tao_" <<
f->local_name () << ";\n";
}
break;
default:
{
ACE_ERROR_RETURN ((LM_ERROR,
"(%N:%l) be_state_exception - unknown state\n"), -1);
}
} // end switch state
}
break;
case AST_Decl::NT_except: // type is an exception
{
// XXXASG TODO: is this allowed ???
}
break;
case AST_Decl::NT_typedef: // type is a typedef
{
be_type *temp;
be_typedef *t = be_typedef::narrow_from_decl (bt);
if (!t)
return -1;
temp = t->primitive_base_type ();
// make a recursive call
return this->gen_code (t, f, temp);
} // end of switch
//break; unreachable statement!
}
// the enclosing exception will be variable length if the field's type is
// variable length
bexcp->size_type (type->size_type ());
return 0;
}
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