godot/core/variant/array.h
Rémi Verschelde c6cefb1b79
Array: Relax slice bound checks to properly handle negative indices
The same is done for `Vector` (and thus `Packed*Array`).

`begin` and `end` can now take any value and will be clamped to
`[-size(), size()]`. Negative values are a shorthand for indexing the array
from the last element upward.

`end` is given a default `INT_MAX` value (which will be clamped to `size()`)
so that the `end` parameter can be omitted to go from `begin` to the max size
of the array.

This makes `slice` works similarly to numpy's and JavaScript's.
2022-01-10 22:42:03 +01:00

134 lines
5.0 KiB
C++

/*************************************************************************/
/* array.h */
/*************************************************************************/
/* This file is part of: */
/* GODOT ENGINE */
/* https://godotengine.org */
/*************************************************************************/
/* Copyright (c) 2007-2022 Juan Linietsky, Ariel Manzur. */
/* Copyright (c) 2014-2022 Godot Engine contributors (cf. AUTHORS.md). */
/* */
/* 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. */
/*************************************************************************/
#ifndef ARRAY_H
#define ARRAY_H
#include "core/typedefs.h"
#include <climits>
class Variant;
class ArrayPrivate;
class Object;
class StringName;
class Callable;
class Array {
mutable ArrayPrivate *_p;
void _ref(const Array &p_from) const;
void _unref() const;
protected:
Array(const Array &p_base, uint32_t p_type, const StringName &p_class_name, const Variant &p_script);
bool _assign(const Array &p_array);
public:
Variant &operator[](int p_idx);
const Variant &operator[](int p_idx) const;
void set(int p_idx, const Variant &p_value);
const Variant &get(int p_idx) const;
int size() const;
bool is_empty() const;
void clear();
bool operator==(const Array &p_array) const;
bool operator!=(const Array &p_array) const;
bool recursive_equal(const Array &p_array, int recursion_count) const;
uint32_t hash() const;
uint32_t recursive_hash(int recursion_count) const;
void operator=(const Array &p_array);
void push_back(const Variant &p_value);
_FORCE_INLINE_ void append(const Variant &p_value) { push_back(p_value); } //for python compatibility
void append_array(const Array &p_array);
Error resize(int p_new_size);
Error insert(int p_pos, const Variant &p_value);
void remove_at(int p_pos);
void fill(const Variant &p_value);
Variant front() const;
Variant back() const;
void sort();
void sort_custom(Callable p_callable);
void shuffle();
int bsearch(const Variant &p_value, bool p_before = true);
int bsearch_custom(const Variant &p_value, Callable p_callable, bool p_before = true);
void reverse();
int find(const Variant &p_value, int p_from = 0) const;
int rfind(const Variant &p_value, int p_from = -1) const;
int find_last(const Variant &p_value) const;
int count(const Variant &p_value) const;
bool has(const Variant &p_value) const;
void erase(const Variant &p_value);
void push_front(const Variant &p_value);
Variant pop_back();
Variant pop_front();
Variant pop_at(int p_pos);
Array duplicate(bool p_deep = false) const;
Array recursive_duplicate(bool p_deep, int recursion_count) const;
Array slice(int p_begin, int p_end = INT_MAX, int p_step = 1, bool p_deep = false) const;
Array filter(const Callable &p_callable) const;
Array map(const Callable &p_callable) const;
Variant reduce(const Callable &p_callable, const Variant &p_accum) const;
bool operator<(const Array &p_array) const;
bool operator<=(const Array &p_array) const;
bool operator>(const Array &p_array) const;
bool operator>=(const Array &p_array) const;
Variant min() const;
Variant max() const;
const void *id() const;
bool typed_assign(const Array &p_other);
void set_typed(uint32_t p_type, const StringName &p_class_name, const Variant &p_script);
bool is_typed() const;
uint32_t get_typed_builtin() const;
StringName get_typed_class_name() const;
Variant get_typed_script() const;
Array(const Array &p_from);
Array();
~Array();
};
#endif // ARRAY_H