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// ============================================================================
//
// = LIBRARY
// TAO IDL
//
// = FILENAME
// be_state_typedef.cpp
//
// = DESCRIPTION
// state based code generation for typedefs.
//
// = AUTHOR
// Aniruddha Gokhale
//
// ============================================================================
#include "idl.h"
#include "idl_extern.h"
#include "be.h"
// return type for typedef
be_state_typedef::be_state_typedef (void)
{
}
// generate code for structure member
int
be_state_typedef::gen_code (be_type *bt, be_decl *d, be_type *type)
{
TAO_OutStream *os; // output stream
TAO_NL nl; // end line
TAO_CodeGen *cg = TAO_CODEGEN::instance ();
be_typedef *tdef; // typedef node
be_decl *scope; // enclosing scope in which the typedef occurs
switch (cg->state ())
{
case TAO_CodeGen::TAO_TYPEDEF_CH:
os = cg->client_header (); // set the stream to be the client header
break;
case TAO_CodeGen::TAO_TYPEDEF_CI:
os = cg->client_inline ();
break;
case TAO_CodeGen::TAO_TYPEDEF_CS:
os = cg->client_stubs ();
break;
default:
return -1;
} // end of outermost switch
tdef = be_typedef::narrow_from_decl (d); // downcast to typedef node
if (!tdef)
return -1;
scope = be_scope::narrow_from_scope (tdef->defined_in ())->decl ();
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);
// the typedef node has the same size type as its base type
tdef->size_type (bt->size_type ());
switch (type->node_type ())
{
case AST_Decl::NT_interface: // type is an obj reference
case AST_Decl::NT_interface_fwd: // type is an obj reference
{
switch (cg->state ())
{
case TAO_CodeGen::TAO_TYPEDEF_CH:
{
os->indent (); // start from current indentation
// typedef of an interface results in 3 typedefs as shown below
*os << "typedef " << bt->nested_type_name (scope) << " " <<
d->local_name () << ";" << nl;
*os << "typedef " << bt->nested_type_name (scope, "_ptr") << " " <<
d->local_name () << "_ptr;" << nl;
*os << "typedef " << bt->nested_type_name (scope, "_var") << " " <<
d->local_name () << "_var;" << nl;
*os << "typedef " << bt->nested_type_name (scope, "_out") << " " <<
d->local_name () << "_out;\n\n";
}
break;
default: // nothing to do for other cases
break;
} // end of switch state
}
break;
case AST_Decl::NT_pre_defined: // type is predefined type
{
switch (cg->state ())
{
case TAO_CodeGen::TAO_TYPEDEF_CH:
{
be_predefined_type *pd = be_predefined_type::narrow_from_decl (type);
if (!pd)
return -1;
os->indent (); // start from current indentation
*os << "typedef " << bt->nested_type_name (scope) << " " <<
d->local_name () << ";";
// if the predefined type is an ANY, we also define a typedef to _var
if (pd->pt () == AST_PredefinedType::PT_any)
{
*os << nl;
*os << "typedef " << bt->name () << "_var " << d->local_name
() << "_var;";
}
else if (pd->pt () == AST_PredefinedType::PT_pseudo)
{
// pseudo object
*os << "typedef " << bt->nested_type_name (scope, "_ptr") <<
" " << d->local_name () << "_ptr;" << nl;
*os << "typedef " << bt->nested_type_name (scope, "_var") <<
" " << d->local_name () << "_var;" << nl;
}
*os << "typedef " << bt->nested_type_name (scope, "_out") << " "
<< d->local_name () << "_out;\n\n";
} // end of case
break;
default: // nothing to do for other cases
break;
} // end switch
}
break;
case AST_Decl::NT_string: // type is a string
{
switch (cg->state ())
{
case TAO_CodeGen::TAO_TYPEDEF_CH:
{
os->indent (); // start from current indentation
if (bt->node_type () == AST_Decl::NT_typedef)
{
*os << "typedef " << bt->nested_type_name (scope) << " " <<
d->local_name () << ";" << nl;
*os << "typedef " << bt->nested_type_name (scope, "_var") <<
" " << d->local_name () << "_var;" << nl;
*os << "typedef " << bt->nested_type_name (scope, "_out") <<
" " << d->local_name () << "_out;\n\n";
}
else
{
*os << "typedef CORBA::String " << d->local_name () << ";" <<
nl;
*os << "typedef CORBA::String_var " << d->local_name
() << "_var;" << nl;
*os << "typedef CORBA::String_out " << d->local_name
() << "_out;\n\n";
}
}
break;
default: // nothing to do for the rest of the cases
break;
} // end switch state
}
break;
case AST_Decl::NT_enum: // type is an enum
{
switch (cg->state ())
{
case TAO_CodeGen::TAO_TYPEDEF_CH:
{
os->indent (); // start from current indentation
// if we are not here recursively, then we need to generate the
// definition first
if (bt->node_type () != AST_Decl::NT_typedef)
{
if (bt->gen_client_header () == -1)
{
ACE_ERROR_RETURN ((LM_ERROR,
"be_state_typedef - enum gen failed\n"), -1);
}
}
*os << "typedef " << bt->nested_type_name (scope) << " " <<
d->local_name () << ";" << nl;
*os << "typedef " << bt->nested_type_name (scope, "_out") << " "
<< d->local_name () << "_out;\n\n";
}
break;
default:
break;
} // end of switch
}
break;
// these are all anonymous types
case AST_Decl::NT_array: // type is an array
{
switch (cg->state ())
{
case TAO_CodeGen::TAO_TYPEDEF_CH:
{
// if we are not here recursively, then we need to generate the
// definition first i.e., this typedef had its immediate base
// class that was an array declaration. The code for arrays will
// handle all the code generation. We just prepend the word
// "typedef".
if (bt->node_type () != AST_Decl::NT_typedef)
{
os->indent ();
*os << "typedef ";
if (bt->gen_client_header () == -1)
{
ACE_ERROR_RETURN ((LM_ERROR,
"be_state_typedef - array gen failed\n"), -1);
}
}
else
{
// we are a typedef node whose immediate base class is also a
// typedefed node to some array node. We simply output a
// number of typedef statements
os->indent ();
*os << "typedef " << bt->nested_type_name (scope) << " " <<
d->local_name () << ";" << nl;
*os << "typedef " << bt->nested_type_name (scope, "_slice") <<
" " << d->local_name () << "_slice;" << nl;
*os << "typedef " << bt->nested_type_name (scope, "_var") << " "
<< d->local_name () << "_var;" << nl;
*os << "typedef " << bt->nested_type_name (scope, "_out") << " "
<< d->local_name () << "_out;" << nl;
*os << "typedef " << bt->nested_type_name (scope, "_forany") << " "
<< d->local_name () << "_forany;" << nl;
// typedefs for the auxiliary methods. If we are nested inside
// some scope, these methods become static to the enclosing scope
if (d->is_nested ())
*os << "static ";
*os << bt->nested_type_name (scope) << "_slice* " << d->local_name () <<
"_alloc (void);" << nl;
if (d->is_nested ())
*os << "static ";
*os << bt->nested_type_name (scope, "_slice") << " *" <<
d->local_name () << "_dup ("
<< bt->nested_type_name (scope) << "_slice* " << ");" << nl;
if (d->is_nested ())
*os << "static ";
*os << "void " << bt->nested_type_name (scope) << "_free (" <<
d->name () << "_slice *);\n\n";
}
}
break;
case TAO_CodeGen::TAO_TYPEDEF_CI:
{
// if we are not here recursively, then we need to generate the
// definition first
if (bt->node_type () != AST_Decl::NT_typedef)
{
if (bt->gen_client_inline () == -1)
{
ACE_ERROR_RETURN ((LM_ERROR,
"be_state_typedef - struct/union/seq gen failed\n"),
-1);
}
}
}
break;
case TAO_CodeGen::TAO_TYPEDEF_CS:
{
// if we are not here recursively, then we need to generate the
// definition first
if (bt->node_type () != AST_Decl::NT_typedef)
{
if (bt->gen_client_stubs () == -1)
{
ACE_ERROR_RETURN ((LM_ERROR,
"be_state_typedef - struct/union/seq gen failed\n"),
-1);
}
}
}
break;
default:
break;
} // end of switch
}
break;
case AST_Decl::NT_sequence: // type is a sequence
case AST_Decl::NT_struct: // type is a struct
case AST_Decl::NT_union: // type is a union
{
switch (cg->state ())
{
case TAO_CodeGen::TAO_TYPEDEF_CH:
{
// if we are not here recursively, then we need to generate the
// definition first
if (bt->node_type () != AST_Decl::NT_typedef)
{
if (bt->gen_client_header () == -1)
{
ACE_ERROR_RETURN ((LM_ERROR,
"be_state_typedef - struct/union/seq gen failed\n"),
-1);
}
}
os->indent (); // start from current indentation
*os << "typedef " << bt->nested_type_name (scope) << " " <<
d->local_name () << ";" << nl;
*os << "typedef " << bt->nested_type_name (scope, "_var") << " "
<< d->local_name () << "_var;" << nl;
*os << "typedef " << bt->nested_type_name (scope, "_out") << " "
<< d->local_name () << "_out;\n\n";
}
break;
case TAO_CodeGen::TAO_TYPEDEF_CI:
{
// if we are not here recursively, then we need to generate the
// definition first
if (bt->node_type () != AST_Decl::NT_typedef)
{
if (bt->gen_client_inline () == -1)
{
ACE_ERROR_RETURN ((LM_ERROR,
"be_state_typedef - struct/union/seq gen failed\n"),
-1);
}
}
}
break;
case TAO_CodeGen::TAO_TYPEDEF_CS:
{
// if we are not here recursively, then we need to generate the
// definition first
if (bt->node_type () != AST_Decl::NT_typedef)
{
if (bt->gen_client_stubs () == -1)
{
ACE_ERROR_RETURN ((LM_ERROR,
"be_state_typedef - struct/union/seq gen failed\n"),
-1);
}
}
}
break;
default:
break;
} // end of 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, tdef, temp);
} // end of case
//break; unreachable statement!
} // end of switch
return 0;
}
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