godot/core/object/method_bind.cpp
2023-09-21 12:39:04 -05:00

137 lines
4.8 KiB
C++

/**************************************************************************/
/* method_bind.cpp */
/**************************************************************************/
/* This file is part of: */
/* GODOT ENGINE */
/* https://godotengine.org */
/**************************************************************************/
/* Copyright (c) 2014-present Godot Engine contributors (see AUTHORS.md). */
/* Copyright (c) 2007-2014 Juan Linietsky, Ariel Manzur. */
/* */
/* Permission is hereby granted, free of charge, to any person obtaining */
/* a copy of this software and associated documentation files (the */
/* "Software"), to deal in the Software without restriction, including */
/* without limitation the rights to use, copy, modify, merge, publish, */
/* distribute, sublicense, and/or sell copies of the Software, and to */
/* permit persons to whom the Software is furnished to do so, subject to */
/* the following conditions: */
/* */
/* The above copyright notice and this permission notice shall be */
/* included in all copies or substantial portions of the Software. */
/* */
/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. */
/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
/**************************************************************************/
// object.h needs to be the first include *before* method_bind.h
// FIXME: Find out why and fix potential cyclical dependencies.
#include "core/object/object.h"
#include "method_bind.h"
uint32_t MethodBind::get_hash() const {
uint32_t hash = hash_murmur3_one_32(has_return() ? 1 : 0);
hash = hash_murmur3_one_32(get_argument_count(), hash);
for (int i = (has_return() ? -1 : 0); i < get_argument_count(); i++) {
PropertyInfo pi = i == -1 ? get_return_info() : get_argument_info(i);
hash = hash_murmur3_one_32(get_argument_type(i), hash);
if (pi.class_name != StringName()) {
hash = hash_murmur3_one_32(pi.class_name.operator String().hash(), hash);
}
}
hash = hash_murmur3_one_32(get_default_argument_count(), hash);
for (int i = 0; i < get_argument_count(); i++) {
if (has_default_argument(i)) {
Variant v = get_default_argument(i);
hash = hash_murmur3_one_32(v.hash(), hash);
}
}
hash = hash_murmur3_one_32(is_const(), hash);
hash = hash_murmur3_one_32(is_vararg(), hash);
return hash_fmix32(hash);
}
PropertyInfo MethodBind::get_argument_info(int p_argument) const {
ERR_FAIL_INDEX_V(p_argument, get_argument_count(), PropertyInfo());
PropertyInfo info = _gen_argument_type_info(p_argument);
#ifdef DEBUG_METHODS_ENABLED
if (info.name.is_empty()) {
info.name = p_argument < arg_names.size() ? String(arg_names[p_argument]) : String("_unnamed_arg" + itos(p_argument));
}
#endif
return info;
}
PropertyInfo MethodBind::get_return_info() const {
return _gen_argument_type_info(-1);
}
void MethodBind::_set_const(bool p_const) {
_const = p_const;
}
void MethodBind::_set_static(bool p_static) {
_static = p_static;
}
void MethodBind::_set_returns(bool p_returns) {
_returns = p_returns;
}
StringName MethodBind::get_name() const {
return name;
}
void MethodBind::set_name(const StringName &p_name) {
name = p_name;
}
#ifdef DEBUG_METHODS_ENABLED
void MethodBind::set_argument_names(const Vector<StringName> &p_names) {
arg_names = p_names;
}
Vector<StringName> MethodBind::get_argument_names() const {
return arg_names;
}
#endif
void MethodBind::set_default_arguments(const Vector<Variant> &p_defargs) {
default_arguments = p_defargs;
default_argument_count = default_arguments.size();
}
void MethodBind::_generate_argument_types(int p_count) {
set_argument_count(p_count);
Variant::Type *argt = memnew_arr(Variant::Type, p_count + 1);
argt[0] = _gen_argument_type(-1); // return type
for (int i = 0; i < p_count; i++) {
argt[i + 1] = _gen_argument_type(i);
}
argument_types = argt;
}
MethodBind::MethodBind() {
static int last_id = 0;
method_id = last_id++;
}
MethodBind::~MethodBind() {
if (argument_types) {
memdelete_arr(argument_types);
}
}