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2f651277da
* Based on the work done for Variant in the past. * Added `ClassDB::bind_static_method` * Cleaned up ClassDB::bind_method to use variadic templates. This adds support for having static methods in Object derived classes. Note that this does not make it work yet in GDScript or Mono and, while it works for GDExtension, GodotCPP needs to be updated.
141 lines
4.9 KiB
C++
141 lines
4.9 KiB
C++
/*************************************************************************/
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/* method_bind.cpp */
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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) 2007-2022 Juan Linietsky, Ariel Manzur. */
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/* Copyright (c) 2014-2022 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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// object.h needs to be the first include *before* method_bind.h
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// FIXME: Find out why and fix potential cyclical dependencies.
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#include "core/object/object.h"
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#include "method_bind.h"
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uint32_t MethodBind::get_hash() const {
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uint32_t hash = hash_djb2_one_32(has_return() ? 1 : 0);
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hash = hash_djb2_one_32(get_argument_count(), hash);
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#ifndef _MSC_VER
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#warning This needs proper class name and argument type for hashing
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#endif
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#if 0
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for (int i = (has_return() ? -1 : 0); i < get_argument_count(); i++) {
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PropertyInfo pi = i == -1 ? get_return_info() : get_argument_info(i);
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hash = hash_djb2_one_32(get_argument_type(i), hash);
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if (pi.class_name != StringName()) {
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hash = hash_djb2_one_32(pi.class_name.operator String().hash(), hash);
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}
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}
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#endif
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hash = hash_djb2_one_32(get_default_argument_count(), hash);
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for (int i = 0; i < get_default_argument_count(); i++) {
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Variant v = get_default_argument(i);
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hash = hash_djb2_one_32(v.hash(), hash);
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}
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hash = hash_djb2_one_32(is_const(), hash);
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hash = hash_djb2_one_32(is_vararg(), hash);
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return hash;
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}
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PropertyInfo MethodBind::get_argument_info(int p_argument) const {
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ERR_FAIL_INDEX_V(p_argument, get_argument_count(), PropertyInfo());
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PropertyInfo info = _gen_argument_type_info(p_argument);
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#ifdef DEBUG_METHODS_ENABLED
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info.name = p_argument < arg_names.size() ? String(arg_names[p_argument]) : String("arg" + itos(p_argument));
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#else
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info.name = String("arg" + itos(p_argument));
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#endif
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return info;
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}
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PropertyInfo MethodBind::get_return_info() const {
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return _gen_argument_type_info(-1);
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}
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void MethodBind::_set_const(bool p_const) {
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_const = p_const;
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}
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void MethodBind::_set_static(bool p_static) {
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_static = p_static;
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}
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void MethodBind::_set_returns(bool p_returns) {
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_returns = p_returns;
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}
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StringName MethodBind::get_name() const {
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return name;
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}
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void MethodBind::set_name(const StringName &p_name) {
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name = p_name;
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}
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#ifdef DEBUG_METHODS_ENABLED
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void MethodBind::set_argument_names(const Vector<StringName> &p_names) {
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arg_names = p_names;
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}
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Vector<StringName> MethodBind::get_argument_names() const {
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return arg_names;
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}
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#endif
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void MethodBind::set_default_arguments(const Vector<Variant> &p_defargs) {
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default_arguments = p_defargs;
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default_argument_count = default_arguments.size();
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}
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void MethodBind::_generate_argument_types(int p_count) {
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set_argument_count(p_count);
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Variant::Type *argt = memnew_arr(Variant::Type, p_count + 1);
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argt[0] = _gen_argument_type(-1); // return type
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for (int i = 0; i < p_count; i++) {
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argt[i + 1] = _gen_argument_type(i);
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}
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argument_types = argt;
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}
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MethodBind::MethodBind() {
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static int last_id = 0;
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method_id = last_id++;
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}
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MethodBind::~MethodBind() {
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if (argument_types) {
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memdelete_arr(argument_types);
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}
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}
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