449 lines
14 KiB
C++
449 lines
14 KiB
C++
/*************************************************************************/
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/* pluginscript_script.cpp */
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/*************************************************************************/
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/* This file is part of: */
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/* GODOT ENGINE */
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/* http://www.godotengine.org */
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/*************************************************************************/
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/* Copyright (c) 2007-2017 Juan Linietsky, Ariel Manzur. */
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/* Copyright (c) 2014-2017 Godot Engine contributors (cf. AUTHORS.md) */
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/* */
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/* Permission is hereby granted, free of charge, to any person obtaining */
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/* a copy of this software and associated documentation files (the */
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/* "Software"), to deal in the Software without restriction, including */
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/* without limitation the rights to use, copy, modify, merge, publish, */
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/* distribute, sublicense, and/or sell copies of the Software, and to */
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/* permit persons to whom the Software is furnished to do so, subject to */
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/* the following conditions: */
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/* */
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/* The above copyright notice and this permission notice shall be */
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/* included in all copies or substantial portions of the Software. */
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/* */
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/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
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/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
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/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
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/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
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/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
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/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
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/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
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/*************************************************************************/
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// Godot imports
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#include "core/os/file_access.h"
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// PluginScript imports
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#include "pluginscript_instance.h"
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#include "pluginscript_script.h"
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#if DEBUG_ENABLED
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#define __ASSERT_SCRIPT_REASON "Cannot retrieve pluginscript class for this script, is you code correct ?"
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#define ASSERT_SCRIPT_VALID() \
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{ \
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ERR_EXPLAIN(__ASSERT_SCRIPT_REASON); \
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ERR_FAIL_COND(!can_instance()) \
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}
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#define ASSERT_SCRIPT_VALID_V(ret) \
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{ \
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ERR_EXPLAIN(__ASSERT_SCRIPT_REASON); \
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ERR_FAIL_COND_V(!can_instance(), ret) \
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}
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#else
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#define ASSERT_SCRIPT_VALID()
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#define ASSERT_SCRIPT_VALID_V(ret)
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#endif
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void PluginScript::_bind_methods() {
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}
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#ifdef TOOLS_ENABLED
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void PluginScript::_placeholder_erased(PlaceHolderScriptInstance *p_placeholder) {
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placeholders.erase(p_placeholder);
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}
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#endif
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bool PluginScript::can_instance() const {
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bool can = _valid || (!_tool && !ScriptServer::is_scripting_enabled());
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return can;
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}
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Ref<Script> PluginScript::get_base_script() const {
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if (_ref_base_parent.is_valid()) {
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return Ref<PluginScript>(_ref_base_parent);
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} else {
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return Ref<Script>();
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}
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}
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StringName PluginScript::get_instance_base_type() const {
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if (_native_parent)
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return _native_parent;
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if (_ref_base_parent.is_valid())
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return _ref_base_parent->get_instance_base_type();
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return StringName();
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}
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void PluginScript::update_exports() {
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// TODO
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#ifdef TOOLS_ENABLED
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#if 0
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ASSERT_SCRIPT_VALID();
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if (/*changed &&*/ placeholders.size()) { //hm :(
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//update placeholders if any
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Map<StringName, Variant> propdefvalues;
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List<PropertyInfo> propinfos;
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const String *props = (const String *)pybind_get_prop_list(_py_exposed_class);
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for (int i = 0; props[i] != ""; ++i) {
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const String propname = props[i];
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pybind_get_prop_default_value(_py_exposed_class, propname.c_str(), (godot_variant *)&propdefvalues[propname]);
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pybind_prop_info raw_info;
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pybind_get_prop_info(_py_exposed_class, propname.c_str(), &raw_info);
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PropertyInfo info;
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info.type = (Variant::Type)raw_info.type;
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info.name = propname;
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info.hint = (PropertyHint)raw_info.hint;
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info.hint_string = *(String *)&raw_info.hint_string;
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info.usage = raw_info.usage;
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propinfos.push_back(info);
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}
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for (Set<PlaceHolderScriptInstance *>::Element *E = placeholders.front(); E; E = E->next()) {
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E->get()->update(propinfos, propdefvalues);
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}
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}
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#endif
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#endif
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}
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// TODO: rename p_this "p_owner" ?
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ScriptInstance *PluginScript::instance_create(Object *p_this) {
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ASSERT_SCRIPT_VALID_V(NULL);
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// TODO check script validity ?
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if (!_tool && !ScriptServer::is_scripting_enabled()) {
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#ifdef TOOLS_ENABLED
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// Instance a fake script for editing the values
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PlaceHolderScriptInstance *si = memnew(PlaceHolderScriptInstance(get_language(), Ref<Script>(this), p_this));
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placeholders.insert(si);
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update_exports();
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return si;
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#else
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return NULL;
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#endif
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}
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PluginScript *top = this;
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// TODO: can be optimized by storing a PluginScript::_base_parent direct pointer
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while (top->_ref_base_parent.is_valid())
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top = top->_ref_base_parent.ptr();
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if (top->_native_parent) {
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if (!ClassDB::is_parent_class(p_this->get_class_name(), top->_native_parent)) {
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String msg = "Script inherits from native type '" + String(top->_native_parent) + "', so it can't be instanced in object of type: '" + p_this->get_class() + "'";
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// TODO: implement PluginscriptLanguage::debug_break_parse
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// if (ScriptDebugger::get_singleton()) {
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// _language->debug_break_parse(get_path(), 0, msg);
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// }
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ERR_EXPLAIN(msg);
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ERR_FAIL_V(NULL);
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}
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}
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PluginScriptInstance *instance = memnew(PluginScriptInstance());
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const bool success = instance->init(this, p_this);
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if (success) {
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_language->lock();
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_instances.insert(instance->get_owner());
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_language->unlock();
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return instance;
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} else {
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memdelete(instance);
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ERR_FAIL_V(NULL);
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}
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}
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bool PluginScript::instance_has(const Object *p_this) const {
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_language->lock();
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bool hasit = _instances.has((Object *)p_this);
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_language->unlock();
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return hasit;
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}
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bool PluginScript::has_source_code() const {
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bool has = _source != "";
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return has;
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}
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String PluginScript::get_source_code() const {
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return _source;
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}
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void PluginScript::set_source_code(const String &p_code) {
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if (_source == p_code)
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return;
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_source = p_code;
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}
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Error PluginScript::reload(bool p_keep_state) {
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_language->lock();
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ERR_FAIL_COND_V(!p_keep_state && _instances.size(), ERR_ALREADY_IN_USE);
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_language->unlock();
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_valid = false;
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String basedir = _path;
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if (basedir == "")
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basedir = get_path();
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if (basedir != "")
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basedir = basedir.get_base_dir();
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if (_data) {
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_desc->finish(_data);
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}
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Error err;
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godot_pluginscript_script_manifest manifest = _desc->init(
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_language->_data,
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(godot_string *)&_path,
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(godot_string *)&_source,
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(godot_error *)&err);
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if (err) {
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// TODO: GDscript uses `ScriptDebugger` here to jump into the parsing error
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return err;
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}
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_valid = true;
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// Use the manifest to configure this script object
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_data = manifest.data;
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_name = *(StringName *)&manifest.name;
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_tool = manifest.is_tool;
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// Base name is either another PluginScript or a regular class accessible
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// through ClassDB
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StringName *base_name = (StringName *)&manifest.base;
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for (SelfList<PluginScript> *e = _language->_script_list.first(); e != NULL; e = e->next()) {
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if (e->self()->_name == *base_name) {
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// Found you, base is a PluginScript !
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_ref_base_parent = Ref<PluginScript>(e->self());
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break;
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}
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}
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if (!_ref_base_parent.is_valid()) {
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// Base is a native ClassDB
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if (!ClassDB::class_exists(*base_name)) {
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ERR_EXPLAIN("Unknown script '" + String(_name) + "' parent '" + String(*base_name) + "'.");
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ERR_FAIL_V(ERR_PARSE_ERROR);
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}
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_native_parent = *base_name;
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}
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Dictionary *members = (Dictionary *)&manifest.member_lines;
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for (const Variant *key = members->next(); key != NULL; key = members->next(key)) {
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_member_lines[*key] = (*members)[key];
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}
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Array *methods = (Array *)&manifest.methods;
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for (int i = 0; i < methods->size(); ++i) {
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Dictionary v = (*methods)[i];
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MethodInfo mi = MethodInfo::from_dict(v);
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_methods_info[mi.name] = mi;
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// rpc_mode is passed as an optional field and is not part of MethodInfo
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Variant var = v["rpc_mode"];
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if (var == Variant()) {
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_methods_rpc_mode[mi.name] = ScriptInstance::RPC_MODE_DISABLED;
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} else {
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_methods_rpc_mode[mi.name] = ScriptInstance::RPCMode(int(var));
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}
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}
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Array *signals = (Array *)&manifest.signals;
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for (int i = 0; i < signals->size(); ++i) {
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Variant v = (*signals)[i];
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MethodInfo mi = MethodInfo::from_dict(v);
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_signals_info[mi.name] = mi;
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}
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Array *properties = (Array *)&manifest.properties;
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for (int i = 0; i < properties->size(); ++i) {
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Dictionary v = (*properties)[i];
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PropertyInfo pi = PropertyInfo::from_dict(v);
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_properties_info[pi.name] = pi;
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_properties_default_values[pi.name] = v["default_value"];
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// rset_mode is passed as an optional field and is not part of PropertyInfo
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Variant var = v["rset_mode"];
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if (var == Variant()) {
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_methods_rpc_mode[pi.name] = ScriptInstance::RPC_MODE_DISABLED;
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} else {
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_methods_rpc_mode[pi.name] = ScriptInstance::RPCMode(int(var));
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}
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}
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// Manifest's attributes must be explicitly freed
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godot_string_name_destroy(&manifest.name);
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godot_string_name_destroy(&manifest.base);
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godot_dictionary_destroy(&manifest.member_lines);
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godot_array_destroy(&manifest.methods);
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godot_array_destroy(&manifest.signals);
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godot_array_destroy(&manifest.properties);
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#ifdef TOOLS_ENABLED
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/*for (Set<PlaceHolderScriptInstance*>::Element *E=placeholders.front();E;E=E->next()) {
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_update_placeholder(E->get());
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}*/
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#endif
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return OK;
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}
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void PluginScript::get_script_method_list(List<MethodInfo> *r_methods) const {
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ASSERT_SCRIPT_VALID();
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for (Map<StringName, MethodInfo>::Element *e = _methods_info.front(); e != NULL; e = e->next()) {
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r_methods->push_back(e->get());
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}
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}
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void PluginScript::get_script_property_list(List<PropertyInfo> *r_properties) const {
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ASSERT_SCRIPT_VALID();
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for (Map<StringName, PropertyInfo>::Element *e = _properties_info.front(); e != NULL; e = e->next()) {
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r_properties->push_back(e->get());
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}
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}
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bool PluginScript::has_method(const StringName &p_method) const {
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ASSERT_SCRIPT_VALID_V(false);
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return _methods_info.has(p_method);
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}
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MethodInfo PluginScript::get_method_info(const StringName &p_method) const {
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ASSERT_SCRIPT_VALID_V(MethodInfo());
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const Map<StringName, MethodInfo>::Element *e = _methods_info.find(p_method);
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if (e != NULL) {
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return e->get();
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} else {
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return MethodInfo();
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}
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}
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bool PluginScript::has_property(const StringName &p_method) const {
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ASSERT_SCRIPT_VALID_V(false);
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return _properties_info.has(p_method);
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}
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PropertyInfo PluginScript::get_property_info(const StringName &p_property) const {
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ASSERT_SCRIPT_VALID_V(PropertyInfo());
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const Map<StringName, PropertyInfo>::Element *e = _properties_info.find(p_property);
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if (e != NULL) {
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return e->get();
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} else {
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return PropertyInfo();
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}
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}
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bool PluginScript::get_property_default_value(const StringName &p_property, Variant &r_value) const {
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ASSERT_SCRIPT_VALID_V(false);
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#ifdef TOOLS_ENABLED
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const Map<StringName, Variant>::Element *e = _properties_default_values.find(p_property);
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if (e != NULL) {
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r_value = e->get();
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return true;
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} else {
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return false;
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}
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#endif
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return false;
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}
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ScriptLanguage *PluginScript::get_language() const {
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return _language;
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}
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Error PluginScript::load_source_code(const String &p_path) {
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PoolVector<uint8_t> sourcef;
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Error err;
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FileAccess *f = FileAccess::open(p_path, FileAccess::READ, &err);
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if (err) {
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ERR_FAIL_COND_V(err, err);
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}
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int len = f->get_len();
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sourcef.resize(len + 1);
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PoolVector<uint8_t>::Write w = sourcef.write();
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int r = f->get_buffer(w.ptr(), len);
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f->close();
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memdelete(f);
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ERR_FAIL_COND_V(r != len, ERR_CANT_OPEN);
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w[len] = 0;
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String s;
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if (s.parse_utf8((const char *)w.ptr())) {
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ERR_EXPLAIN("Script '" + p_path + "' contains invalid unicode (utf-8), so it was not loaded. Please ensure that scripts are saved in valid utf-8 unicode.");
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ERR_FAIL_V(ERR_INVALID_DATA);
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}
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_source = s;
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#ifdef TOOLS_ENABLED
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// source_changed_cache=true;
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#endif
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_path = p_path;
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return OK;
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}
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bool PluginScript::has_script_signal(const StringName &p_signal) const {
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ASSERT_SCRIPT_VALID_V(false);
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return _signals_info.has(p_signal);
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}
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void PluginScript::get_script_signal_list(List<MethodInfo> *r_signals) const {
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ASSERT_SCRIPT_VALID();
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for (Map<StringName, MethodInfo>::Element *e = _signals_info.front(); e != NULL; e = e->next()) {
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r_signals->push_back(e->get());
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}
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}
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int PluginScript::get_member_line(const StringName &p_member) const {
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#ifdef TOOLS_ENABLED
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if (_member_lines.has(p_member))
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return _member_lines[p_member];
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else
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#endif
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return -1;
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}
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ScriptInstance::RPCMode PluginScript::get_rpc_mode(const StringName &p_method) const {
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ASSERT_SCRIPT_VALID_V(ScriptInstance::RPC_MODE_DISABLED);
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const Map<StringName, ScriptInstance::RPCMode>::Element *e = _methods_rpc_mode.find(p_method);
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if (e != NULL) {
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return e->get();
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} else {
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return ScriptInstance::RPC_MODE_DISABLED;
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}
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}
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ScriptInstance::RPCMode PluginScript::get_rset_mode(const StringName &p_variable) const {
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ASSERT_SCRIPT_VALID_V(ScriptInstance::RPC_MODE_DISABLED);
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const Map<StringName, ScriptInstance::RPCMode>::Element *e = _variables_rset_mode.find(p_variable);
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if (e != NULL) {
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return e->get();
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} else {
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return ScriptInstance::RPC_MODE_DISABLED;
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}
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}
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PluginScript::PluginScript()
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: _data(NULL), _tool(false), _valid(false), _script_list(this) {
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}
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void PluginScript::init(PluginScriptLanguage *language) {
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_desc = &language->_desc.script_desc;
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_language = language;
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#ifdef DEBUG_ENABLED
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_language->lock();
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_language->_script_list.add(&_script_list);
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_language->unlock();
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#endif
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}
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PluginScript::~PluginScript() {
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_desc->finish(_data);
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#ifdef DEBUG_ENABLED
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_language->lock();
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_language->_script_list.remove(&_script_list);
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_language->unlock();
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#endif
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}
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