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100 lines
4.9 KiB
C++
100 lines
4.9 KiB
C++
/**************************************************************************/
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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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#ifndef SCRIPT_INSTANCE_H
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#define SCRIPT_INSTANCE_H
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#include "core/object/ref_counted.h"
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class Script;
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class ScriptLanguage;
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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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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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virtual Object *get_owner() { return nullptr; }
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virtual void get_property_state(List<Pair<StringName, Variant>> &state);
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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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virtual int get_method_argument_count(const StringName &p_method, bool *r_is_valid = nullptr) const;
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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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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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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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//this is used by script languages that keep a reference counter of their own
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//you can 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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virtual void refcount_incremented() {}
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virtual bool refcount_decremented() { return true; } //return true if it can die
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virtual Ref<Script> get_script() const = 0;
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virtual bool is_placeholder() const { return false; }
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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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virtual const Variant get_rpc_config() const;
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virtual ScriptLanguage *get_language() = 0;
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virtual ~ScriptInstance();
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};
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#endif // SCRIPT_INSTANCE_H
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