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// $Id$
#ifndef TAO_IDL_UTL_SCOPE_T_CPP
#define TAO_IDL_UTL_SCOPE_T_CPP
#include "utl_scope.h"
#include "nr_extern.h"
#include "global_extern.h"
#include "utl_err.h"
#include "ast_interface_fwd.h"
template<typename DECL>
DECL *
UTL_Scope::fe_add_full_intf_decl (DECL *t)
{
if (t->redef_clash ())
{
return 0;
}
AST_Decl *predef = 0;
DECL *fwd = 0;
// Already defined?
if ((predef = this->lookup_for_add (t)) != 0)
{
// Treat fwd declared interfaces specially
if (predef->node_type () == DECL::NT)
{
fwd = DECL::narrow_from_decl (predef);
if (fwd == 0)
{
return 0;
}
// Forward declared and not defined yet.
if (!fwd->is_defined ())
{
if (fwd->defined_in () != this)
{
idl_global->err ()->error3 (UTL_Error::EIDL_SCOPE_CONFLICT,
fwd,
t,
ScopeAsDecl (this));
return 0;
}
}
// OK, not illegal redef of forward declaration. Now check whether.
// it has been referenced already.
else if (this->referenced (predef, t->local_name ()))
{
idl_global->err ()->error3 (UTL_Error::EIDL_DEF_USE,
t,
ScopeAsDecl (this),
predef);
return 0;
}
}
else if (!FE_Utils::can_be_redefined (predef, t))
{
idl_global->err ()->error3 (UTL_Error::EIDL_REDEF,
t,
ScopeAsDecl (this),
predef);
return 0;
}
else if (referenced (predef, t->local_name ()) && !t->is_defined ())
{
idl_global->err ()->error3 (UTL_Error::EIDL_DEF_USE,
t,
ScopeAsDecl (this),
predef);
return 0;
}
else if (t->has_ancestor (predef))
{
idl_global->err ()->redefinition_in_scope (t, predef);
return 0;
}
}
// Add it to scope
this->add_to_scope (t);
// We do this for interfaces, valuetypes and components in
// a different place than we do for structs and unions,
// since fwd declared structs and unions must be defined in
// the same translation unit.
AST_InterfaceFwd *fd = t->fwd_decl ();
if (0 != fd)
{
fd->set_as_defined ();
}
// Add it to set of locally referenced symbols
this->add_to_referenced (t,
false,
t->local_name ());
return t;
}
template<typename FULL_DECL>
typename FULL_DECL::FWD_TYPE *
UTL_Scope::fe_add_fwd_intf_decl (typename FULL_DECL::FWD_TYPE *t)
{
AST_Decl *d = 0;
// Already defined and cannot be redefined? Or already used?
if ((d = this->lookup_for_add (t)) != 0)
{
AST_Decl::NodeType nt = d->node_type ();
// There used to be another check here ANDed with the one below:
// d->defined_in () == this. But lookup_for_add() calls only
// lookup_by_name_local(), which does not bump up the scope,
// and look_in_prev_mods() for modules. If look_in_prev_mods()
// finds something, the scopes will NOT be the same pointer
// value, but the result is what we want.
if (nt == FULL_DECL::NT)
{
FULL_DECL *itf = FULL_DECL::narrow_from_decl (d);
if (itf == 0)
{
return 0;
}
// If the lookup found the full_definition member of another
// interface_fwd, don't reset this full_definition. Otherwise
// reset the member and set is_defined_ on i so it itf won't
// get destroyed twice.
if (itf->is_defined ())
{
if (!t->is_defined ())
{
FULL_DECL *prev_fd =
FULL_DECL::narrow_from_decl (t->full_definition ());
prev_fd->destroy ();
// No need to delete prev_fd, the call to
// set_full_definition() below will do it.
}
t->set_full_definition (itf);
t->set_as_defined ();
}
}
if (!FE_Utils::can_be_redefined (d, t)) {
idl_global->err ()->error3 (UTL_Error::EIDL_REDEF,
t,
ScopeAsDecl (this),
d);
return 0;
}
// No need to call referenced() for forward declared interafces,
// they can be redeclared after referencing.
if (t->has_ancestor (d))
{
idl_global->err ()->redefinition_in_scope (t, d);
return 0;
}
}
// Add it to scope
this->add_to_scope (t);
// Add it to set of locally referenced symbols
this->add_to_referenced (t,
false,
t->local_name ());
return t;
}
#endif // TAO_IDL_UTL_SCOPE_T_CPP
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