diff options
Diffstat (limited to 'lib/wax.cpp')
-rw-r--r-- | lib/wax.cpp | 146 |
1 files changed, 0 insertions, 146 deletions
diff --git a/lib/wax.cpp b/lib/wax.cpp deleted file mode 100644 index c08398c50..000000000 --- a/lib/wax.cpp +++ /dev/null @@ -1,146 +0,0 @@ -// -// Copyright 2010 Ettus Research LLC -// -// This program is free software: you can redistribute it and/or modify -// it under the terms of the GNU General Public License as published by -// the Free Software Foundation, either version 3 of the License, or -// (at your option) any later version. -// -// This program is distributed in the hope that it will be useful, -// but WITHOUT ANY WARRANTY; without even the implied warranty of -// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -// GNU General Public License for more details. -// -// You should have received a copy of the GNU General Public License -// along with this program. If not, see <http://www.gnu.org/licenses/>. -// - -#include <uhd/wax.hpp> -#include <boost/format.hpp> -#include <stdexcept> - -/*! - * The link args for internal use within this cpp file: - * - * It contains a link (in this case a pointer) to a wax object. - * Only the methods in this file may create or parse link args. - * The get_link method is the creator of a link args object. - * The [] operator will resolve the link and make the [] call. - * - * TODO: register the link args with the wax obj that it links to. - * That way, if the obj destructs, the link can be invalidated. - * The operator() will throw, rather than dereferencing bad memory. - */ -class link_args_t{ -public: - link_args_t(const wax::obj *obj_ptr) : _obj_ptr(obj_ptr){ - /* NOP */ - } - wax::obj & operator()(void){ - return *const_cast<wax::obj *>(_obj_ptr); - } -private: - const wax::obj *_obj_ptr; -}; - -/*! - * The proxy args for internal use within this cpp file: - * - * It contains a link and a key for setting/getting a property. - * Only the methods in this file may create or parse proxy args. - * Class methods have special handling for the case when the - * wax obj contains an instance of the proxy args. - */ -class proxy_args_t{ -public: - proxy_args_t(const wax::obj *obj_ptr, const wax::obj &key) : _key(key){ - _obj_link = obj_ptr->get_link(); - } - wax::obj & operator()(void){ - return wax::cast<link_args_t>(_obj_link)(); - } - const wax::obj & key(void){ - return _key; - } -private: - wax::obj _obj_link; - const wax::obj _key; -}; - -/*********************************************************************** - * Structors - **********************************************************************/ -wax::obj::obj(void){ - /* NOP */ -} - -wax::obj::obj(const obj &o){ - _contents = o._contents; -} - -wax::obj::~obj(void){ - /* NOP */ -} - -/*********************************************************************** - * Special Operators - **********************************************************************/ -wax::obj wax::obj::operator[](const obj &key){ - if (_contents.type() == typeid(proxy_args_t)){ - obj val = resolve(); - //check if its a special link and call - if (val.type() == typeid(link_args_t)){ - return cast<link_args_t>(val)()[key]; - } - //unknown obj - throw std::runtime_error("cannot use [] on non wax::obj link"); - } - else{ - return proxy_args_t(this, key); - } -} - -wax::obj & wax::obj::operator=(const obj &val){ - if (_contents.type() == typeid(proxy_args_t)){ - proxy_args_t proxy_args = boost::any_cast<proxy_args_t>(_contents); - proxy_args().set(proxy_args.key(), val); - } - else{ - _contents = val._contents; - } - return *this; -} - -/*********************************************************************** - * Public Methods - **********************************************************************/ -wax::obj wax::obj::get_link(void) const{ - return link_args_t(this); -} - -const std::type_info & wax::obj::type(void) const{ - return resolve().type(); -} - -/*********************************************************************** - * Private Methods - **********************************************************************/ -boost::any wax::obj::resolve(void) const{ - if (_contents.type() == typeid(proxy_args_t)){ - obj val; - proxy_args_t proxy_args = boost::any_cast<proxy_args_t>(_contents); - proxy_args().get(proxy_args.key(), val); - return val.resolve(); - } - else{ - return _contents; - } -} - -void wax::obj::get(const obj &, obj &){ - throw std::runtime_error("Cannot call get on wax obj base class"); -} - -void wax::obj::set(const obj &, const obj &){ - throw std::runtime_error("Cannot call set on wax obj base class"); -} |