text: /*************************************************************************/
  /*  pluginscript_instance.cpp                                            */
  /*************************************************************************/
  /*                       This file is part of:                           */
  /*                           GODOT ENGINE                                */
  /*                      https://godotengine.org                          */
  /*************************************************************************/
  /* Copyright (c) 2007-2018 Juan Linietsky, Ariel Manzur.                 */
  /* Copyright (c) 2014-2018 Godot Engine contributors (cf. AUTHORS.md)    */
  /*                                                                       */
  /* Permission is hereby granted, free of charge, to any person obtaining */
  /* a copy of this software and associated documentation files (the       */
  /* "Software"), to deal in the Software without restriction, including   */
  /* without limitation the rights to use, copy, modify, merge, publish,   */
  /* distribute, sublicense, and/or sell copies of the Software, and to    */
  /* permit persons to whom the Software is furnished to do so, subject to */
  /* the following conditions:                                             */
  /*                                                                       */
  /* The above copyright notice and this permission notice shall be        */
  /* included in all copies or substantial portions of the Software.       */
  /*                                                                       */
  /* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,       */
  /* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF    */
  /* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
  /* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY  */
  /* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,  */
  /* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE     */
  /* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.                */
  /*************************************************************************/
  
  // Godot imports
  #include "core/os/os.h"
  #include "core/variant.h"
  // PluginScript imports
  #include "pluginscript_instance.h"
  #include "pluginscript_language.h"
  #include "pluginscript_script.h"
  
  bool PluginScriptInstance::set(const StringName &p_name, const Variant &p_value) {
  	String name = String(p_name);
  	return _desc->set_prop(_data, (const godot_string *)&name, (const godot_variant *)&p_value);
  }
  
  bool PluginScriptInstance::get(const StringName &p_name, Variant &r_ret) const {
  	String name = String(p_name);
  	return _desc->get_prop(_data, (const godot_string *)&name, (godot_variant *)&r_ret);
  }
  
  Ref<Script> PluginScriptInstance::get_script() const {
  	return _script;
  }
  
  ScriptLanguage *PluginScriptInstance::get_language() {
  	return _script->get_language();
  }
  
  Variant::Type PluginScriptInstance::get_property_type(const StringName &p_name, bool *r_is_valid) const {
  	if (!_script->has_property(p_name)) {
  		if (r_is_valid) {
  			*r_is_valid = false;
  		}
  		return Variant::NIL;
  	}
  	if (r_is_valid) {
  		*r_is_valid = true;
  	}
  	return _script->get_property_info(p_name).type;
  }
  
  void PluginScriptInstance::get_property_list(List<PropertyInfo> *p_properties) const {
  	_script->get_script_property_list(p_properties);
  }
  
  void PluginScriptInstance::get_method_list(List<MethodInfo> *p_list) const {
  	_script->get_script_method_list(p_list);
  }
  
  bool PluginScriptInstance::has_method(const StringName &p_method) const {
  	return _script->has_method(p_method);
  }
  
  Variant PluginScriptInstance::call(const StringName &p_method, const Variant **p_args, int p_argcount, Variant::CallError &r_error) {
  	// TODO: optimize when calling a Godot method from Godot to avoid param conversion ?
  	godot_variant ret = _desc->call_method(
  			_data, (godot_string_name *)&p_method, (const godot_variant **)p_args,
  			p_argcount, (godot_variant_call_error *)&r_error);
  	Variant var_ret = *(Variant *)&ret;
  	godot_variant_destroy(&ret);
  	return var_ret;
  }
  
  #if 0 // TODO: Don't rely on default implementations provided by ScriptInstance ?
  void PluginScriptInstance::call_multilevel(const StringName& p_method,const Variant** p_args,int p_argcount) {
  
  #if 0
      PluginScript *sptr=script.ptr();
      Variant::CallError ce;
  
      while(sptr) {
          Map<StringName,GDFunction*>::Element *E = sptr->member_functions.find(p_method);
          if (E) {
              E->get()->call(this,p_args,p_argcount,ce);
          }
          sptr = sptr->_base;
      }
  #endif
  
  }
  
  #if 0
  void PluginScriptInstance::_ml_call_reversed(PluginScript *sptr,const StringName& p_method,const Variant** p_args,int p_argcount) {
  
      if (sptr->_base)
          _ml_call_reversed(sptr->_base,p_method,p_args,p_argcount);
  
      Variant::CallError ce;
  
      Map<StringName,GDFunction*>::Element *E = sptr->member_functions.find(p_method);
      if (E) {
          E->get()->call(this,p_args,p_argcount,ce);
      }
  
  }
  #endif
  
  
  void PluginScriptInstance::call_multilevel_reversed(const StringName& p_method,const Variant** p_args,int p_argcount) {
  
  #if 0
      if (script.ptr()) {
          _ml_call_reversed(script.ptr(),p_method,p_args,p_argcount);
      }
  #endif
  }
  #endif // Multilevel stuff
  
  void PluginScriptInstance::notification(int p_notification) {
  	_desc->notification(_data, p_notification);
  }
  
  ScriptInstance::RPCMode PluginScriptInstance::get_rpc_mode(const StringName &p_method) const {
  	return _script->get_rpc_mode(p_method);
  }
  
  ScriptInstance::RPCMode PluginScriptInstance::get_rset_mode(const StringName &p_variable) const {
  	return _script->get_rset_mode(p_variable);
  }
  
  void PluginScriptInstance::refcount_incremented() {
  	if (_desc->refcount_decremented) {
  		_desc->refcount_incremented(_data);
  	}
  }
  
  bool PluginScriptInstance::refcount_decremented() {
  	// Return true if it can die
  	if (_desc->refcount_decremented) {
  		return _desc->refcount_decremented(_data);
  	}
  	return true;
  }
  
  PluginScriptInstance::PluginScriptInstance() {
  }
  
  bool PluginScriptInstance::init(PluginScript *p_script, Object *p_owner) {
  	_owner = p_owner;
  	_owner_variant = Variant(p_owner);
  	_script = Ref<PluginScript>(p_script);
  	_desc = &p_script->_desc->instance_desc;
  	_data = _desc->init(p_script->_data, (godot_object *)p_owner);
  	ERR_FAIL_COND_V(_data == NULL, false);
  	p_owner->set_script_instance(this);
  	return true;
  }
  
  PluginScriptInstance::~PluginScriptInstance() {
  	_desc->finish(_data);
  	_script->_language->lock();
  	_script->_instances.erase(_owner);
  	_script->_language->unlock();
  }
  