92 lines
3.0 KiB
C++
92 lines
3.0 KiB
C++
// Expose C++ objects to Nasal as ghosts
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//
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// Copyright (C) 2014 Thomas Geymayer <tomgey@gmail.com>
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//
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// This library is free software; you can redistribute it and/or
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// modify it under the terms of the GNU Library General Public
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// License as published by the Free Software Foundation; either
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// version 2 of the License, or (at your option) any later version.
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//
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// This library is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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// Library General Public License for more details.
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//
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// You should have received a copy of the GNU Library General Public
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// License along with this library; if not, write to the Free Software
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// Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
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#include "Ghost.hxx"
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namespace nasal
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{
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namespace internal
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{
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//--------------------------------------------------------------------------
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GhostMetadata::DestroyList GhostMetadata::_destroy_list;
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//--------------------------------------------------------------------------
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void GhostMetadata::addNasalBase(const naRef& parent)
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{
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assert( naIsHash(parent) );
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_parents.push_back(parent);
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}
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//--------------------------------------------------------------------------
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bool GhostMetadata::isInstance(naGhostType* ghost_type, bool& is_weak) const
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{
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if( ghost_type == _ghost_type_strong_ptr )
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{
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is_weak = false;
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return true;
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}
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if( ghost_type == _ghost_type_weak_ptr )
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{
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is_weak = true;
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return true;
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}
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return false;
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}
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//--------------------------------------------------------------------------
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GhostMetadata::GhostMetadata( const std::string& name,
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const naGhostType* ghost_type_strong,
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const naGhostType* ghost_type_weak ):
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_name_strong(name),
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_name_weak(name + " (weak ref)"),
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_ghost_type_strong_ptr(ghost_type_strong),
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_ghost_type_weak_ptr(ghost_type_weak)
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{
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}
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//--------------------------------------------------------------------------
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void GhostMetadata::addDerived(const GhostMetadata* derived)
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{
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assert(derived);
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}
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//--------------------------------------------------------------------------
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naRef GhostMetadata::getParents(naContext c)
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{
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return nasal::to_nasal(c, _parents);
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}
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} // namespace internal
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//----------------------------------------------------------------------------
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void ghostProcessDestroyList()
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{
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using internal::GhostMetadata;
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typedef GhostMetadata::DestroyList::const_iterator destroy_iterator;
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for( destroy_iterator it = GhostMetadata::_destroy_list.begin();
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it != GhostMetadata::_destroy_list.end();
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++it )
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it->first(it->second);
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GhostMetadata::_destroy_list.clear();
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}
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} // namespace nasal
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