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+/**************************************************************************/
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+/* script_instance.h */
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+/**************************************************************************/
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+/* This file is part of: */
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+/* GODOT ENGINE */
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+/* https://godotengine.org */
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+/**************************************************************************/
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+/* Copyright (c) 2014-present Godot Engine contributors (see AUTHORS.md). */
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+/* Copyright (c) 2007-2014 Juan Linietsky, Ariel Manzur. */
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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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+
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+#ifndef SCRIPT_INSTANCE_H
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+#define SCRIPT_INSTANCE_H
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+
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+#include "core/object/ref_counted.h"
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+
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+class Script;
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+class ScriptLanguage;
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+
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+class ScriptInstance {
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+public:
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+ virtual bool set(const StringName &p_name, const Variant &p_value) = 0;
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+ virtual bool get(const StringName &p_name, Variant &r_ret) const = 0;
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+ virtual void get_property_list(List<PropertyInfo> *p_properties) const = 0;
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+ virtual Variant::Type get_property_type(const StringName &p_name, bool *r_is_valid = nullptr) const = 0;
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+ virtual void validate_property(PropertyInfo &p_property) const = 0;
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+
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+ virtual bool property_can_revert(const StringName &p_name) const = 0;
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+ virtual bool property_get_revert(const StringName &p_name, Variant &r_ret) const = 0;
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+
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+ virtual Object *get_owner() { return nullptr; }
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+ virtual void get_property_state(List<Pair<StringName, Variant>> &state);
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+
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+ virtual void get_method_list(List<MethodInfo> *p_list) const = 0;
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+ virtual bool has_method(const StringName &p_method) const = 0;
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+
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+ virtual Variant callp(const StringName &p_method, const Variant **p_args, int p_argcount, Callable::CallError &r_error) = 0;
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+
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+ template <typename... VarArgs>
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+ Variant call(const StringName &p_method, VarArgs... p_args) {
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+ Variant args[sizeof...(p_args) + 1] = { p_args..., Variant() }; // +1 makes sure zero sized arrays are also supported.
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+ const Variant *argptrs[sizeof...(p_args) + 1];
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+ for (uint32_t i = 0; i < sizeof...(p_args); i++) {
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+ argptrs[i] = &args[i];
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+ }
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+ Callable::CallError cerr;
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+ return callp(p_method, sizeof...(p_args) == 0 ? nullptr : (const Variant **)argptrs, sizeof...(p_args), cerr);
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+ }
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+
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+ virtual Variant call_const(const StringName &p_method, const Variant **p_args, int p_argcount, Callable::CallError &r_error); // implement if language supports const functions
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+ virtual void notification(int p_notification, bool p_reversed = false) = 0;
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+ virtual String to_string(bool *r_valid) {
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+ if (r_valid) {
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+ *r_valid = false;
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+ }
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+ return String();
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+ }
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+
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+ //this is used by script languages that keep a reference counter of their own
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+ //you can make make Ref<> not die when it reaches zero, so deleting the reference
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+ //depends entirely from the script
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+
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+ virtual void refcount_incremented() {}
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+ virtual bool refcount_decremented() { return true; } //return true if it can die
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+
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+ virtual Ref<Script> get_script() const = 0;
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+
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+ virtual bool is_placeholder() const { return false; }
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+
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+ virtual void property_set_fallback(const StringName &p_name, const Variant &p_value, bool *r_valid);
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+ virtual Variant property_get_fallback(const StringName &p_name, bool *r_valid);
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+
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+ virtual const Variant get_rpc_config() const;
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+
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+ virtual ScriptLanguage *get_language() = 0;
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+ virtual ~ScriptInstance();
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+};
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+
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+#endif // SCRIPT_INSTANCE_H
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