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/*************************************************************************/
/* dictionary.cpp */
/*************************************************************************/
/* This file is part of: */
/* GODOT ENGINE */
/* http://www.godotengine.org */
/*************************************************************************/
/* Copyright (c) 2007-2017 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. */
/*************************************************************************/
#include "dictionary.h"
#include "safe_refcount.h"
#include "variant.h"
#include "io/json.h"
struct _DictionaryVariantHash {
static _FORCE_INLINE_ uint32_t hash(const Variant &p_variant) { return p_variant.hash(); }
};
struct DictionaryPrivate {
SafeRefCount refcount;
HashMap<Variant,Variant,_DictionaryVariantHash> variant_map;
bool shared;
};
void Dictionary::get_key_list( List<Variant> *p_keys) const {
_p->variant_map.get_key_list(p_keys);
}
void Dictionary::_copy_on_write() const {
//make a copy of what we have
if (_p->shared)
return;
DictionaryPrivate *p = memnew(DictionaryPrivate);
p->shared=_p->shared;
p->variant_map=_p->variant_map;
p->refcount.init();
_unref();
_p=p;
}
Variant& Dictionary::operator[](const Variant& p_key) {
_copy_on_write();
return _p->variant_map[p_key];
}
const Variant& Dictionary::operator[](const Variant& p_key) const {
return _p->variant_map[p_key];
}
const Variant* Dictionary::getptr(const Variant& p_key) const {
return _p->variant_map.getptr(p_key);
}
Variant* Dictionary::getptr(const Variant& p_key) {
_copy_on_write();
return _p->variant_map.getptr(p_key);
}
Variant Dictionary::get_valid(const Variant& p_key) const {
const Variant *v = getptr(p_key);
if (!v)
return Variant();
return *v;
}
int Dictionary::size() const {
return _p->variant_map.size();
}
bool Dictionary::empty() const {
return !_p->variant_map.size();
}
bool Dictionary::has(const Variant& p_key) const {
return _p->variant_map.has(p_key);
}
bool Dictionary::has_all(const Array& p_keys) const {
for (int i=0;i<p_keys.size();i++) {
if( !has(p_keys[i]) ) {
return false;
}
}
return true;
}
void Dictionary::erase(const Variant& p_key) {
_copy_on_write();
_p->variant_map.erase(p_key);
}
bool Dictionary::operator==(const Dictionary& p_dictionary) const {
return _p==p_dictionary._p;
}
void Dictionary::_ref(const Dictionary& p_from) const {
//make a copy first (thread safe)
if (!p_from._p->refcount.ref())
return; // couldn't copy
//if this is the same, unreference the other one
if (p_from._p==_p) {
_p->refcount.unref();
return;
}
if (_p)
_unref();
_p=p_from._p;
}
void Dictionary::clear() {
_copy_on_write();
_p->variant_map.clear();
}
bool Dictionary::is_shared() const {
return _p->shared;
}
void Dictionary::_unref() const {
ERR_FAIL_COND(!_p);
if (_p->refcount.unref()) {
memdelete(_p);
}
_p=NULL;
}
uint32_t Dictionary::hash() const {
uint32_t h=hash_djb2_one_32(Variant::DICTIONARY);
List<Variant> keys;
get_key_list(&keys);
for (List<Variant>::Element *E=keys.front();E;E=E->next()) {
h = hash_djb2_one_32( E->get().hash(), h);
h = hash_djb2_one_32( operator[](E->get()).hash(), h);
}
return h;
}
Array Dictionary::keys() const {
Array karr;
karr.resize(size());
const Variant *K=NULL;
int idx=0;
while((K=next(K))) {
karr[idx++]=(*K);
}
return karr;
}
Array Dictionary::values() const {
Array varr;
varr.resize(size());
const Variant *key=NULL;
int i=0;
while((key=next(key))){
varr[i++] = _p->variant_map[*key];
}
return varr;
}
const Variant* Dictionary::next(const Variant* p_key) const {
return _p->variant_map.next(p_key);
}
Error Dictionary::parse_json(const String& p_json) {
String errstr;
int errline=0;
if (p_json != ""){
Error err = JSON::parse(p_json,*this,errstr,errline);
if (err!=OK) {
ERR_EXPLAIN("Error parsing JSON: "+errstr+" at line: "+itos(errline));
ERR_FAIL_COND_V(err!=OK,err);
}
}
return OK;
}
Dictionary Dictionary::copy() const {
Dictionary n(is_shared());
List<Variant> keys;
get_key_list(&keys);
for(List<Variant>::Element *E=keys.front();E;E=E->next()) {
n[E->get()]=operator[](E->get());
}
return n;
}
String Dictionary::to_json() const {
return JSON::print(*this);
}
void Dictionary::operator=(const Dictionary& p_dictionary) {
_ref(p_dictionary);
}
Dictionary::Dictionary(const Dictionary& p_from) {
_p=NULL;
_ref(p_from);
}
Dictionary::Dictionary(bool p_shared) {
_p=memnew( DictionaryPrivate );
_p->refcount.init();
_p->shared=p_shared;
}
Dictionary::~Dictionary() {
_unref();
}
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