d95794ec8a
As many open source projects have started doing it, we're removing the current year from the copyright notice, so that we don't need to bump it every year. It seems like only the first year of publication is technically relevant for copyright notices, and even that seems to be something that many companies stopped listing altogether (in a version controlled codebase, the commits are a much better source of date of publication than a hardcoded copyright statement). We also now list Godot Engine contributors first as we're collectively the current maintainers of the project, and we clarify that the "exclusive" copyright of the co-founders covers the timespan before opensourcing (their further contributions are included as part of Godot Engine contributors). Also fixed "cf." Frenchism - it's meant as "refer to / see".
696 lines
22 KiB
C++
696 lines
22 KiB
C++
/**************************************************************************/
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/* method_bind.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 METHOD_BIND_H
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#define METHOD_BIND_H
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#include "core/variant/binder_common.h"
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VARIANT_ENUM_CAST(MethodFlags)
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// some helpers
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class MethodBind {
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int method_id;
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uint32_t hint_flags = METHOD_FLAGS_DEFAULT;
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StringName name;
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StringName instance_class;
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Vector<Variant> default_arguments;
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int default_argument_count = 0;
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int argument_count = 0;
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bool _static = false;
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bool _const = false;
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bool _returns = false;
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protected:
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Variant::Type *argument_types = nullptr;
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#ifdef DEBUG_METHODS_ENABLED
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Vector<StringName> arg_names;
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#endif
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void _set_const(bool p_const);
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void _set_static(bool p_static);
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void _set_returns(bool p_returns);
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virtual Variant::Type _gen_argument_type(int p_arg) const = 0;
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virtual PropertyInfo _gen_argument_type_info(int p_arg) const = 0;
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void _generate_argument_types(int p_count);
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void set_argument_count(int p_count) { argument_count = p_count; }
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public:
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_FORCE_INLINE_ const Vector<Variant> &get_default_arguments() const { return default_arguments; }
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_FORCE_INLINE_ int get_default_argument_count() const { return default_argument_count; }
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_FORCE_INLINE_ Variant has_default_argument(int p_arg) const {
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int idx = p_arg - (argument_count - default_arguments.size());
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if (idx < 0 || idx >= default_arguments.size()) {
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return false;
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} else {
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return true;
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}
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}
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_FORCE_INLINE_ Variant get_default_argument(int p_arg) const {
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int idx = p_arg - (argument_count - default_arguments.size());
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if (idx < 0 || idx >= default_arguments.size()) {
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return Variant();
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} else {
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return default_arguments[idx];
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}
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}
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_FORCE_INLINE_ Variant::Type get_argument_type(int p_argument) const {
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ERR_FAIL_COND_V(p_argument < -1 || p_argument > argument_count, Variant::NIL);
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return argument_types[p_argument + 1];
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}
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PropertyInfo get_argument_info(int p_argument) const;
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PropertyInfo get_return_info() const;
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#ifdef DEBUG_METHODS_ENABLED
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void set_argument_names(const Vector<StringName> &p_names); // Set by ClassDB, can't be inferred otherwise.
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Vector<StringName> get_argument_names() const;
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virtual GodotTypeInfo::Metadata get_argument_meta(int p_arg) const = 0;
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#endif
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void set_hint_flags(uint32_t p_hint) { hint_flags = p_hint; }
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uint32_t get_hint_flags() const { return hint_flags | (is_const() ? METHOD_FLAG_CONST : 0) | (is_vararg() ? METHOD_FLAG_VARARG : 0) | (is_static() ? METHOD_FLAG_STATIC : 0); }
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_FORCE_INLINE_ StringName get_instance_class() const { return instance_class; }
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_FORCE_INLINE_ void set_instance_class(const StringName &p_class) { instance_class = p_class; }
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_FORCE_INLINE_ int get_argument_count() const { return argument_count; };
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virtual Variant call(Object *p_object, const Variant **p_args, int p_arg_count, Callable::CallError &r_error) const = 0;
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virtual void ptrcall(Object *p_object, const void **p_args, void *r_ret) const = 0;
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StringName get_name() const;
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void set_name(const StringName &p_name);
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_FORCE_INLINE_ int get_method_id() const { return method_id; }
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_FORCE_INLINE_ bool is_const() const { return _const; }
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_FORCE_INLINE_ bool is_static() const { return _static; }
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_FORCE_INLINE_ bool has_return() const { return _returns; }
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virtual bool is_vararg() const { return false; }
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void set_default_arguments(const Vector<Variant> &p_defargs);
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uint32_t get_hash() const;
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MethodBind();
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virtual ~MethodBind();
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};
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// MethodBindVarArg base CRTP
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template <class Derived, class T, class R, bool should_returns>
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class MethodBindVarArgBase : public MethodBind {
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protected:
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R(T::*method)
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(const Variant **, int, Callable::CallError &);
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MethodInfo method_info;
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public:
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virtual PropertyInfo _gen_argument_type_info(int p_arg) const override {
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if (p_arg < 0) {
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return _gen_return_type_info();
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} else if (p_arg < method_info.arguments.size()) {
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return method_info.arguments[p_arg];
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} else {
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return PropertyInfo(Variant::NIL, "arg_" + itos(p_arg), PROPERTY_HINT_NONE, String(), PROPERTY_USAGE_DEFAULT | PROPERTY_USAGE_NIL_IS_VARIANT);
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}
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}
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virtual Variant::Type _gen_argument_type(int p_arg) const override {
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return _gen_argument_type_info(p_arg).type;
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}
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#ifdef DEBUG_METHODS_ENABLED
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virtual GodotTypeInfo::Metadata get_argument_meta(int) const override {
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return GodotTypeInfo::METADATA_NONE;
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}
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#endif
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virtual void ptrcall(Object *p_object, const void **p_args, void *r_ret) const override {
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ERR_FAIL(); // Can't call.
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}
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virtual bool is_const() const { return false; }
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virtual bool is_vararg() const override { return true; }
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MethodBindVarArgBase(
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R (T::*p_method)(const Variant **, int, Callable::CallError &),
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const MethodInfo &p_method_info,
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bool p_return_nil_is_variant) :
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method(p_method), method_info(p_method_info) {
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set_argument_count(method_info.arguments.size());
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Variant::Type *at = memnew_arr(Variant::Type, method_info.arguments.size() + 1);
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at[0] = _gen_return_type_info().type;
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if (method_info.arguments.size()) {
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#ifdef DEBUG_METHODS_ENABLED
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Vector<StringName> names;
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names.resize(method_info.arguments.size());
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#endif
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for (int i = 0; i < method_info.arguments.size(); i++) {
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at[i + 1] = method_info.arguments[i].type;
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#ifdef DEBUG_METHODS_ENABLED
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names.write[i] = method_info.arguments[i].name;
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#endif
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}
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#ifdef DEBUG_METHODS_ENABLED
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set_argument_names(names);
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#endif
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}
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argument_types = at;
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if (p_return_nil_is_variant) {
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method_info.return_val.usage |= PROPERTY_USAGE_NIL_IS_VARIANT;
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}
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_set_returns(should_returns);
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}
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private:
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PropertyInfo _gen_return_type_info() const {
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return Derived::_gen_return_type_info_impl();
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}
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};
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// variadic, no return
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template <class T>
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class MethodBindVarArgT : public MethodBindVarArgBase<MethodBindVarArgT<T>, T, void, false> {
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friend class MethodBindVarArgBase<MethodBindVarArgT<T>, T, void, false>;
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public:
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virtual Variant call(Object *p_object, const Variant **p_args, int p_arg_count, Callable::CallError &r_error) const override {
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(static_cast<T *>(p_object)->*MethodBindVarArgBase<MethodBindVarArgT<T>, T, void, false>::method)(p_args, p_arg_count, r_error);
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return {};
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}
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MethodBindVarArgT(
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void (T::*p_method)(const Variant **, int, Callable::CallError &),
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const MethodInfo &p_method_info,
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bool p_return_nil_is_variant) :
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MethodBindVarArgBase<MethodBindVarArgT<T>, T, void, false>(p_method, p_method_info, p_return_nil_is_variant) {
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}
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private:
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static PropertyInfo _gen_return_type_info_impl() {
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return {};
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}
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};
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template <class T>
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MethodBind *create_vararg_method_bind(void (T::*p_method)(const Variant **, int, Callable::CallError &), const MethodInfo &p_info, bool p_return_nil_is_variant) {
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MethodBind *a = memnew((MethodBindVarArgT<T>)(p_method, p_info, p_return_nil_is_variant));
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a->set_instance_class(T::get_class_static());
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return a;
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}
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// variadic, return
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template <class T, class R>
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class MethodBindVarArgTR : public MethodBindVarArgBase<MethodBindVarArgTR<T, R>, T, R, true> {
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friend class MethodBindVarArgBase<MethodBindVarArgTR<T, R>, T, R, true>;
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public:
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#if defined(SANITIZERS_ENABLED) && defined(__GNUC__) && !defined(__clang__)
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// Workaround GH-66343 raised only with UBSAN, seems to be a false positive.
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#pragma GCC diagnostic push
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#pragma GCC diagnostic ignored "-Wmaybe-uninitialized"
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#endif
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virtual Variant call(Object *p_object, const Variant **p_args, int p_arg_count, Callable::CallError &r_error) const override {
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return (static_cast<T *>(p_object)->*MethodBindVarArgBase<MethodBindVarArgTR<T, R>, T, R, true>::method)(p_args, p_arg_count, r_error);
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}
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#if defined(SANITIZERS_ENABLED) && defined(__GNUC__) && !defined(__clang__)
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#pragma GCC diagnostic pop
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#endif
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MethodBindVarArgTR(
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R (T::*p_method)(const Variant **, int, Callable::CallError &),
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const MethodInfo &p_info,
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bool p_return_nil_is_variant) :
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MethodBindVarArgBase<MethodBindVarArgTR<T, R>, T, R, true>(p_method, p_info, p_return_nil_is_variant) {
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}
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private:
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static PropertyInfo _gen_return_type_info_impl() {
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return GetTypeInfo<R>::get_class_info();
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}
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};
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template <class T, class R>
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MethodBind *create_vararg_method_bind(R (T::*p_method)(const Variant **, int, Callable::CallError &), const MethodInfo &p_info, bool p_return_nil_is_variant) {
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MethodBind *a = memnew((MethodBindVarArgTR<T, R>)(p_method, p_info, p_return_nil_is_variant));
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a->set_instance_class(T::get_class_static());
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return a;
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}
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/**** VARIADIC TEMPLATES ****/
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#ifndef TYPED_METHOD_BIND
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class __UnexistingClass;
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#define MB_T __UnexistingClass
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#else
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#define MB_T T
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#endif
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// no return, not const
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#ifdef TYPED_METHOD_BIND
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template <class T, class... P>
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#else
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template <class... P>
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#endif
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class MethodBindT : public MethodBind {
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void (MB_T::*method)(P...);
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protected:
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virtual Variant::Type _gen_argument_type(int p_arg) const override {
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if (p_arg >= 0 && p_arg < (int)sizeof...(P)) {
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return call_get_argument_type<P...>(p_arg);
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} else {
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return Variant::NIL;
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}
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}
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virtual PropertyInfo _gen_argument_type_info(int p_arg) const override {
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PropertyInfo pi;
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call_get_argument_type_info<P...>(p_arg, pi);
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return pi;
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}
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public:
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#ifdef DEBUG_METHODS_ENABLED
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virtual GodotTypeInfo::Metadata get_argument_meta(int p_arg) const override {
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return call_get_argument_metadata<P...>(p_arg);
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}
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#endif
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virtual Variant call(Object *p_object, const Variant **p_args, int p_arg_count, Callable::CallError &r_error) const override {
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#ifdef TYPED_METHOD_BIND
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call_with_variant_args_dv(static_cast<T *>(p_object), method, p_args, p_arg_count, r_error, get_default_arguments());
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#else
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call_with_variant_args_dv(reinterpret_cast<MB_T *>(p_object), method, p_args, p_arg_count, r_error, get_default_arguments());
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#endif
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return Variant();
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}
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virtual void ptrcall(Object *p_object, const void **p_args, void *r_ret) const override {
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#ifdef TYPED_METHOD_BIND
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call_with_ptr_args<T, P...>(static_cast<T *>(p_object), method, p_args);
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#else
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call_with_ptr_args<MB_T, P...>(reinterpret_cast<MB_T *>(p_object), method, p_args);
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#endif
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}
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MethodBindT(void (MB_T::*p_method)(P...)) {
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method = p_method;
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_generate_argument_types(sizeof...(P));
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set_argument_count(sizeof...(P));
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}
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};
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template <class T, class... P>
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MethodBind *create_method_bind(void (T::*p_method)(P...)) {
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#ifdef TYPED_METHOD_BIND
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MethodBind *a = memnew((MethodBindT<T, P...>)(p_method));
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#else
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MethodBind *a = memnew((MethodBindT<P...>)(reinterpret_cast<void (MB_T::*)(P...)>(p_method)));
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#endif
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a->set_instance_class(T::get_class_static());
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return a;
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}
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// no return, const
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#ifdef TYPED_METHOD_BIND
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template <class T, class... P>
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#else
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template <class... P>
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#endif
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class MethodBindTC : public MethodBind {
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void (MB_T::*method)(P...) const;
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protected:
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virtual Variant::Type _gen_argument_type(int p_arg) const override {
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if (p_arg >= 0 && p_arg < (int)sizeof...(P)) {
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return call_get_argument_type<P...>(p_arg);
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} else {
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return Variant::NIL;
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}
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}
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virtual PropertyInfo _gen_argument_type_info(int p_arg) const override {
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PropertyInfo pi;
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call_get_argument_type_info<P...>(p_arg, pi);
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return pi;
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}
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public:
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#ifdef DEBUG_METHODS_ENABLED
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virtual GodotTypeInfo::Metadata get_argument_meta(int p_arg) const override {
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return call_get_argument_metadata<P...>(p_arg);
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}
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#endif
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virtual Variant call(Object *p_object, const Variant **p_args, int p_arg_count, Callable::CallError &r_error) const override {
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#ifdef TYPED_METHOD_BIND
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call_with_variant_argsc_dv(static_cast<T *>(p_object), method, p_args, p_arg_count, r_error, get_default_arguments());
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#else
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call_with_variant_argsc_dv(reinterpret_cast<MB_T *>(p_object), method, p_args, p_arg_count, r_error, get_default_arguments());
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#endif
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return Variant();
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}
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virtual void ptrcall(Object *p_object, const void **p_args, void *r_ret) const override {
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#ifdef TYPED_METHOD_BIND
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call_with_ptr_argsc<T, P...>(static_cast<T *>(p_object), method, p_args);
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#else
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call_with_ptr_argsc<MB_T, P...>(reinterpret_cast<MB_T *>(p_object), method, p_args);
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#endif
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}
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MethodBindTC(void (MB_T::*p_method)(P...) const) {
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method = p_method;
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_set_const(true);
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_generate_argument_types(sizeof...(P));
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set_argument_count(sizeof...(P));
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}
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};
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template <class T, class... P>
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MethodBind *create_method_bind(void (T::*p_method)(P...) const) {
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#ifdef TYPED_METHOD_BIND
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MethodBind *a = memnew((MethodBindTC<T, P...>)(p_method));
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#else
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MethodBind *a = memnew((MethodBindTC<P...>)(reinterpret_cast<void (MB_T::*)(P...) const>(p_method)));
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#endif
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a->set_instance_class(T::get_class_static());
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return a;
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}
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// return, not const
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#ifdef TYPED_METHOD_BIND
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template <class T, class R, class... P>
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#else
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template <class R, class... P>
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#endif
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class MethodBindTR : public MethodBind {
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R(MB_T::*method)
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(P...);
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protected:
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virtual Variant::Type _gen_argument_type(int p_arg) const override {
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if (p_arg >= 0 && p_arg < (int)sizeof...(P)) {
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return call_get_argument_type<P...>(p_arg);
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} else {
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return GetTypeInfo<R>::VARIANT_TYPE;
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}
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}
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virtual PropertyInfo _gen_argument_type_info(int p_arg) const override {
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if (p_arg >= 0 && p_arg < (int)sizeof...(P)) {
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PropertyInfo pi;
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call_get_argument_type_info<P...>(p_arg, pi);
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return pi;
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} else {
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return GetTypeInfo<R>::get_class_info();
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}
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}
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public:
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#ifdef DEBUG_METHODS_ENABLED
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virtual GodotTypeInfo::Metadata get_argument_meta(int p_arg) const override {
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if (p_arg >= 0) {
|
|
return call_get_argument_metadata<P...>(p_arg);
|
|
} else {
|
|
return GetTypeInfo<R>::METADATA;
|
|
}
|
|
}
|
|
#endif
|
|
|
|
virtual Variant call(Object *p_object, const Variant **p_args, int p_arg_count, Callable::CallError &r_error) const override {
|
|
Variant ret;
|
|
#ifdef TYPED_METHOD_BIND
|
|
call_with_variant_args_ret_dv(static_cast<T *>(p_object), method, p_args, p_arg_count, ret, r_error, get_default_arguments());
|
|
#else
|
|
call_with_variant_args_ret_dv(reinterpret_cast<MB_T *>(p_object), method, p_args, p_arg_count, ret, r_error, get_default_arguments());
|
|
#endif
|
|
return ret;
|
|
}
|
|
|
|
virtual void ptrcall(Object *p_object, const void **p_args, void *r_ret) const override {
|
|
#ifdef TYPED_METHOD_BIND
|
|
call_with_ptr_args_ret<T, R, P...>(static_cast<T *>(p_object), method, p_args, r_ret);
|
|
#else
|
|
call_with_ptr_args_ret<MB_T, R, P...>(reinterpret_cast<MB_T *>(p_object), method, p_args, r_ret);
|
|
#endif
|
|
}
|
|
|
|
MethodBindTR(R (MB_T::*p_method)(P...)) {
|
|
method = p_method;
|
|
_set_returns(true);
|
|
_generate_argument_types(sizeof...(P));
|
|
set_argument_count(sizeof...(P));
|
|
}
|
|
};
|
|
|
|
template <class T, class R, class... P>
|
|
MethodBind *create_method_bind(R (T::*p_method)(P...)) {
|
|
#ifdef TYPED_METHOD_BIND
|
|
MethodBind *a = memnew((MethodBindTR<T, R, P...>)(p_method));
|
|
#else
|
|
MethodBind *a = memnew((MethodBindTR<R, P...>)(reinterpret_cast<R (MB_T::*)(P...)>(p_method)));
|
|
#endif
|
|
|
|
a->set_instance_class(T::get_class_static());
|
|
return a;
|
|
}
|
|
|
|
// return, const
|
|
|
|
#ifdef TYPED_METHOD_BIND
|
|
template <class T, class R, class... P>
|
|
#else
|
|
template <class R, class... P>
|
|
#endif
|
|
class MethodBindTRC : public MethodBind {
|
|
R(MB_T::*method)
|
|
(P...) const;
|
|
|
|
protected:
|
|
virtual Variant::Type _gen_argument_type(int p_arg) const override {
|
|
if (p_arg >= 0 && p_arg < (int)sizeof...(P)) {
|
|
return call_get_argument_type<P...>(p_arg);
|
|
} else {
|
|
return GetTypeInfo<R>::VARIANT_TYPE;
|
|
}
|
|
}
|
|
|
|
virtual PropertyInfo _gen_argument_type_info(int p_arg) const override {
|
|
if (p_arg >= 0 && p_arg < (int)sizeof...(P)) {
|
|
PropertyInfo pi;
|
|
call_get_argument_type_info<P...>(p_arg, pi);
|
|
return pi;
|
|
} else {
|
|
return GetTypeInfo<R>::get_class_info();
|
|
}
|
|
}
|
|
|
|
public:
|
|
#ifdef DEBUG_METHODS_ENABLED
|
|
virtual GodotTypeInfo::Metadata get_argument_meta(int p_arg) const override {
|
|
if (p_arg >= 0) {
|
|
return call_get_argument_metadata<P...>(p_arg);
|
|
} else {
|
|
return GetTypeInfo<R>::METADATA;
|
|
}
|
|
}
|
|
#endif
|
|
|
|
virtual Variant call(Object *p_object, const Variant **p_args, int p_arg_count, Callable::CallError &r_error) const override {
|
|
Variant ret;
|
|
#ifdef TYPED_METHOD_BIND
|
|
call_with_variant_args_retc_dv(static_cast<T *>(p_object), method, p_args, p_arg_count, ret, r_error, get_default_arguments());
|
|
#else
|
|
call_with_variant_args_retc_dv(reinterpret_cast<MB_T *>(p_object), method, p_args, p_arg_count, ret, r_error, get_default_arguments());
|
|
#endif
|
|
return ret;
|
|
}
|
|
|
|
virtual void ptrcall(Object *p_object, const void **p_args, void *r_ret) const override {
|
|
#ifdef TYPED_METHOD_BIND
|
|
call_with_ptr_args_retc<T, R, P...>(static_cast<T *>(p_object), method, p_args, r_ret);
|
|
#else
|
|
call_with_ptr_args_retc<MB_T, R, P...>(reinterpret_cast<MB_T *>(p_object), method, p_args, r_ret);
|
|
#endif
|
|
}
|
|
|
|
MethodBindTRC(R (MB_T::*p_method)(P...) const) {
|
|
method = p_method;
|
|
_set_returns(true);
|
|
_set_const(true);
|
|
_generate_argument_types(sizeof...(P));
|
|
set_argument_count(sizeof...(P));
|
|
}
|
|
};
|
|
|
|
template <class T, class R, class... P>
|
|
MethodBind *create_method_bind(R (T::*p_method)(P...) const) {
|
|
#ifdef TYPED_METHOD_BIND
|
|
MethodBind *a = memnew((MethodBindTRC<T, R, P...>)(p_method));
|
|
#else
|
|
MethodBind *a = memnew((MethodBindTRC<R, P...>)(reinterpret_cast<R (MB_T::*)(P...) const>(p_method)));
|
|
#endif
|
|
a->set_instance_class(T::get_class_static());
|
|
return a;
|
|
}
|
|
|
|
/* STATIC BINDS */
|
|
|
|
// no return
|
|
|
|
template <class... P>
|
|
class MethodBindTS : public MethodBind {
|
|
void (*function)(P...);
|
|
|
|
protected:
|
|
virtual Variant::Type _gen_argument_type(int p_arg) const override {
|
|
if (p_arg >= 0 && p_arg < (int)sizeof...(P)) {
|
|
return call_get_argument_type<P...>(p_arg);
|
|
} else {
|
|
return Variant::NIL;
|
|
}
|
|
}
|
|
|
|
virtual PropertyInfo _gen_argument_type_info(int p_arg) const override {
|
|
PropertyInfo pi;
|
|
call_get_argument_type_info<P...>(p_arg, pi);
|
|
return pi;
|
|
}
|
|
|
|
public:
|
|
#ifdef DEBUG_METHODS_ENABLED
|
|
virtual GodotTypeInfo::Metadata get_argument_meta(int p_arg) const override {
|
|
return call_get_argument_metadata<P...>(p_arg);
|
|
}
|
|
|
|
#endif
|
|
virtual Variant call(Object *p_object, const Variant **p_args, int p_arg_count, Callable::CallError &r_error) const override {
|
|
(void)p_object; // unused
|
|
call_with_variant_args_static_dv(function, p_args, p_arg_count, r_error, get_default_arguments());
|
|
return Variant();
|
|
}
|
|
|
|
virtual void ptrcall(Object *p_object, const void **p_args, void *r_ret) const override {
|
|
(void)p_object;
|
|
(void)r_ret;
|
|
call_with_ptr_args_static_method(function, p_args);
|
|
}
|
|
|
|
MethodBindTS(void (*p_function)(P...)) {
|
|
function = p_function;
|
|
_generate_argument_types(sizeof...(P));
|
|
set_argument_count(sizeof...(P));
|
|
_set_static(true);
|
|
}
|
|
};
|
|
|
|
template <class... P>
|
|
MethodBind *create_static_method_bind(void (*p_method)(P...)) {
|
|
MethodBind *a = memnew((MethodBindTS<P...>)(p_method));
|
|
return a;
|
|
}
|
|
|
|
// return
|
|
|
|
template <class R, class... P>
|
|
class MethodBindTRS : public MethodBind {
|
|
R(*function)
|
|
(P...);
|
|
|
|
protected:
|
|
virtual Variant::Type _gen_argument_type(int p_arg) const override {
|
|
if (p_arg >= 0 && p_arg < (int)sizeof...(P)) {
|
|
return call_get_argument_type<P...>(p_arg);
|
|
} else {
|
|
return GetTypeInfo<R>::VARIANT_TYPE;
|
|
}
|
|
}
|
|
|
|
virtual PropertyInfo _gen_argument_type_info(int p_arg) const override {
|
|
if (p_arg >= 0 && p_arg < (int)sizeof...(P)) {
|
|
PropertyInfo pi;
|
|
call_get_argument_type_info<P...>(p_arg, pi);
|
|
return pi;
|
|
} else {
|
|
return GetTypeInfo<R>::get_class_info();
|
|
}
|
|
}
|
|
|
|
public:
|
|
#ifdef DEBUG_METHODS_ENABLED
|
|
virtual GodotTypeInfo::Metadata get_argument_meta(int p_arg) const override {
|
|
if (p_arg >= 0) {
|
|
return call_get_argument_metadata<P...>(p_arg);
|
|
} else {
|
|
return GetTypeInfo<R>::METADATA;
|
|
}
|
|
}
|
|
|
|
#endif
|
|
virtual Variant call(Object *p_object, const Variant **p_args, int p_arg_count, Callable::CallError &r_error) const override {
|
|
Variant ret;
|
|
call_with_variant_args_static_ret_dv(function, p_args, p_arg_count, ret, r_error, get_default_arguments());
|
|
return ret;
|
|
}
|
|
|
|
virtual void ptrcall(Object *p_object, const void **p_args, void *r_ret) const override {
|
|
(void)p_object;
|
|
call_with_ptr_args_static_method_ret(function, p_args, r_ret);
|
|
}
|
|
|
|
MethodBindTRS(R (*p_function)(P...)) {
|
|
function = p_function;
|
|
_generate_argument_types(sizeof...(P));
|
|
set_argument_count(sizeof...(P));
|
|
_set_static(true);
|
|
_set_returns(true);
|
|
}
|
|
};
|
|
|
|
template <class R, class... P>
|
|
MethodBind *create_static_method_bind(R (*p_method)(P...)) {
|
|
MethodBind *a = memnew((MethodBindTRS<R, P...>)(p_method));
|
|
return a;
|
|
}
|
|
|
|
#endif // METHOD_BIND_H
|