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Happy new year to the wonderful Godot community! We're starting a new decade with a well-established, non-profit, free and open source game engine, and tons of further improvements in the pipeline from hundreds of contributors. Godot will keep getting better, and we're looking forward to all the games that the community will keep developing and releasing with it.
286 lines
7.5 KiB
C++
286 lines
7.5 KiB
C++
/*************************************************************************/
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/* dictionary.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) 2007-2020 Juan Linietsky, Ariel Manzur. */
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/* Copyright (c) 2014-2020 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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#include "dictionary.h"
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#include "core/ordered_hash_map.h"
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#include "core/safe_refcount.h"
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#include "core/variant.h"
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struct DictionaryPrivate {
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SafeRefCount refcount;
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OrderedHashMap<Variant, Variant, VariantHasher, VariantComparator> variant_map;
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};
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void Dictionary::get_key_list(List<Variant> *p_keys) const {
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if (_p->variant_map.empty())
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return;
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for (OrderedHashMap<Variant, Variant, VariantHasher, VariantComparator>::Element E = _p->variant_map.front(); E; E = E.next()) {
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p_keys->push_back(E.key());
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}
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}
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Variant Dictionary::get_key_at_index(int p_index) const {
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int index = 0;
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for (OrderedHashMap<Variant, Variant, VariantHasher, VariantComparator>::Element E = _p->variant_map.front(); E; E = E.next()) {
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if (index == p_index) {
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return E.key();
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}
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index++;
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}
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return Variant();
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}
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Variant Dictionary::get_value_at_index(int p_index) const {
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int index = 0;
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for (OrderedHashMap<Variant, Variant, VariantHasher, VariantComparator>::Element E = _p->variant_map.front(); E; E = E.next()) {
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if (index == p_index) {
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return E.value();
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}
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index++;
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}
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return Variant();
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}
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Variant &Dictionary::operator[](const Variant &p_key) {
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return _p->variant_map[p_key];
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}
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const Variant &Dictionary::operator[](const Variant &p_key) const {
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return _p->variant_map[p_key];
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}
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const Variant *Dictionary::getptr(const Variant &p_key) const {
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OrderedHashMap<Variant, Variant, VariantHasher, VariantComparator>::ConstElement E = ((const OrderedHashMap<Variant, Variant, VariantHasher, VariantComparator> *)&_p->variant_map)->find(p_key);
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if (!E)
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return NULL;
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return &E.get();
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}
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Variant *Dictionary::getptr(const Variant &p_key) {
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OrderedHashMap<Variant, Variant, VariantHasher, VariantComparator>::Element E = _p->variant_map.find(p_key);
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if (!E)
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return NULL;
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return &E.get();
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}
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Variant Dictionary::get_valid(const Variant &p_key) const {
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OrderedHashMap<Variant, Variant, VariantHasher, VariantComparator>::ConstElement E = ((const OrderedHashMap<Variant, Variant, VariantHasher, VariantComparator> *)&_p->variant_map)->find(p_key);
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if (!E)
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return Variant();
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return E.get();
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}
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Variant Dictionary::get(const Variant &p_key, const Variant &p_default) const {
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const Variant *result = getptr(p_key);
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if (!result) {
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return p_default;
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}
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return *result;
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}
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int Dictionary::size() const {
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return _p->variant_map.size();
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}
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bool Dictionary::empty() const {
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return !_p->variant_map.size();
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}
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bool Dictionary::has(const Variant &p_key) const {
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return _p->variant_map.has(p_key);
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}
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bool Dictionary::has_all(const Array &p_keys) const {
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for (int i = 0; i < p_keys.size(); i++) {
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if (!has(p_keys[i])) {
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return false;
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}
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}
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return true;
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}
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bool Dictionary::erase(const Variant &p_key) {
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return _p->variant_map.erase(p_key);
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}
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bool Dictionary::operator==(const Dictionary &p_dictionary) const {
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return _p == p_dictionary._p;
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}
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bool Dictionary::operator!=(const Dictionary &p_dictionary) const {
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return _p != p_dictionary._p;
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}
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void Dictionary::_ref(const Dictionary &p_from) const {
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//make a copy first (thread safe)
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if (!p_from._p->refcount.ref())
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return; // couldn't copy
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//if this is the same, unreference the other one
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if (p_from._p == _p) {
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_p->refcount.unref();
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return;
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}
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if (_p)
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_unref();
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_p = p_from._p;
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}
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void Dictionary::clear() {
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_p->variant_map.clear();
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}
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void Dictionary::_unref() const {
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ERR_FAIL_COND(!_p);
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if (_p->refcount.unref()) {
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memdelete(_p);
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}
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_p = NULL;
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}
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uint32_t Dictionary::hash() const {
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uint32_t h = hash_djb2_one_32(Variant::DICTIONARY);
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for (OrderedHashMap<Variant, Variant, VariantHasher, VariantComparator>::Element E = _p->variant_map.front(); E; E = E.next()) {
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h = hash_djb2_one_32(E.key().hash(), h);
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h = hash_djb2_one_32(E.value().hash(), h);
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}
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return h;
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}
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Array Dictionary::keys() const {
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Array varr;
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if (_p->variant_map.empty())
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return varr;
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varr.resize(size());
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int i = 0;
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for (OrderedHashMap<Variant, Variant, VariantHasher, VariantComparator>::Element E = _p->variant_map.front(); E; E = E.next()) {
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varr[i] = E.key();
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i++;
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}
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return varr;
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}
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Array Dictionary::values() const {
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Array varr;
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if (_p->variant_map.empty())
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return varr;
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varr.resize(size());
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int i = 0;
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for (OrderedHashMap<Variant, Variant, VariantHasher, VariantComparator>::Element E = _p->variant_map.front(); E; E = E.next()) {
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varr[i] = E.get();
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i++;
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}
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return varr;
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}
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const Variant *Dictionary::next(const Variant *p_key) const {
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if (p_key == NULL) {
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// caller wants to get the first element
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if (_p->variant_map.front())
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return &_p->variant_map.front().key();
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return NULL;
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}
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OrderedHashMap<Variant, Variant, VariantHasher, VariantComparator>::Element E = _p->variant_map.find(*p_key);
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if (E && E.next())
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return &E.next().key();
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return NULL;
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}
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Dictionary Dictionary::duplicate(bool p_deep) const {
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Dictionary n;
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for (OrderedHashMap<Variant, Variant, VariantHasher, VariantComparator>::Element E = _p->variant_map.front(); E; E = E.next()) {
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n[E.key()] = p_deep ? E.value().duplicate(true) : E.value();
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}
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return n;
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}
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void Dictionary::operator=(const Dictionary &p_dictionary) {
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_ref(p_dictionary);
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}
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const void *Dictionary::id() const {
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return _p->variant_map.id();
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}
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Dictionary::Dictionary(const Dictionary &p_from) {
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_p = NULL;
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_ref(p_from);
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}
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Dictionary::Dictionary() {
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_p = memnew(DictionaryPrivate);
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_p->refcount.init();
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}
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Dictionary::~Dictionary() {
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_unref();
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}
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