diff options
Diffstat (limited to 'core/variant/array.cpp')
-rw-r--r-- | core/variant/array.cpp | 171 |
1 files changed, 88 insertions, 83 deletions
diff --git a/core/variant/array.cpp b/core/variant/array.cpp index 8373cbd4e8..8d20b1bc79 100644 --- a/core/variant/array.cpp +++ b/core/variant/array.cpp @@ -5,8 +5,8 @@ /* GODOT ENGINE */ /* https://godotengine.org */ /*************************************************************************/ -/* Copyright (c) 2007-2021 Juan Linietsky, Ariel Manzur. */ -/* Copyright (c) 2014-2021 Godot Engine contributors (cf. AUTHORS.md). */ +/* 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 */ @@ -34,6 +34,7 @@ #include "core/object/class_db.h" #include "core/object/script_language.h" #include "core/templates/hashfuncs.h" +#include "core/templates/search_array.h" #include "core/templates/vector.h" #include "core/variant/callable.h" #include "core/variant/variant.h" @@ -96,11 +97,38 @@ void Array::clear() { } bool Array::operator==(const Array &p_array) const { - return _p == p_array._p; + return recursive_equal(p_array, 0); } bool Array::operator!=(const Array &p_array) const { - return !operator==(p_array); + return !recursive_equal(p_array, 0); +} + +bool Array::recursive_equal(const Array &p_array, int recursion_count) const { + // Cheap checks + if (_p == p_array._p) { + return true; + } + const Vector<Variant> &a1 = _p->array; + const Vector<Variant> &a2 = p_array._p->array; + const int size = a1.size(); + if (size != a2.size()) { + return false; + } + + // Heavy O(n) check + if (recursion_count > MAX_RECURSION) { + ERR_PRINT("Max recursion reached"); + return true; + } + recursion_count++; + for (int i = 0; i < size; i++) { + if (!a1[i].hash_compare(a2[i], recursion_count)) { + return false; + } + } + + return true; } bool Array::operator<(const Array &p_array) const { @@ -131,10 +159,20 @@ bool Array::operator>=(const Array &p_array) const { } uint32_t Array::hash() const { - uint32_t h = hash_djb2_one_32(0); + return recursive_hash(0); +} +uint32_t Array::recursive_hash(int recursion_count) const { + if (recursion_count > MAX_RECURSION) { + ERR_PRINT("Max recursion reached"); + return 0; + } + + uint32_t h = hash_djb2_one_32(Variant::ARRAY); + + recursion_count++; for (int i = 0; i < _p->array.size(); i++) { - h = hash_djb2_one_32(_p->array[i].hash(), h); + h = hash_djb2_one_32(_p->array[i].recursive_hash(recursion_count), h); } return h; } @@ -284,8 +322,8 @@ bool Array::has(const Variant &p_value) const { return _p->array.find(p_value, 0) != -1; } -void Array::remove(int p_pos) { - _p->array.remove(p_pos); +void Array::remove_at(int p_pos) { + _p->array.remove_at(p_pos); } void Array::set(int p_idx, const Variant &p_value) { @@ -299,66 +337,58 @@ const Variant &Array::get(int p_idx) const { } Array Array::duplicate(bool p_deep) const { + return recursive_duplicate(p_deep, 0); +} + +Array Array::recursive_duplicate(bool p_deep, int recursion_count) const { Array new_arr; + + if (recursion_count > MAX_RECURSION) { + ERR_PRINT("Max recursion reached"); + return new_arr; + } + int element_count = size(); new_arr.resize(element_count); new_arr._p->typed = _p->typed; - for (int i = 0; i < element_count; i++) { - new_arr[i] = p_deep ? get(i).duplicate(p_deep) : get(i); + if (p_deep) { + recursion_count++; + for (int i = 0; i < element_count; i++) { + new_arr[i] = get(i).recursive_duplicate(true, recursion_count); + } + } else { + for (int i = 0; i < element_count; i++) { + new_arr[i] = get(i); + } } return new_arr; } -int Array::_clamp_slice_index(int p_index) const { - int arr_size = size(); - int fixed_index = CLAMP(p_index, -arr_size, arr_size - 1); - if (fixed_index < 0) { - fixed_index = arr_size + fixed_index; - } - return fixed_index; -} - -Array Array::slice(int p_begin, int p_end, int p_step, bool p_deep) const { // like python, but inclusive on upper bound - - Array new_arr; +Array Array::slice(int p_begin, int p_end, int p_step, bool p_deep) const { + Array result; - ERR_FAIL_COND_V_MSG(p_step == 0, new_arr, "Array slice step size cannot be zero."); + ERR_FAIL_COND_V_MSG(p_step == 0, result, "Slice step cannot be zero."); - if (is_empty()) { // Don't try to slice empty arrays. - return new_arr; - } - if (p_step > 0) { - if (p_begin >= size() || p_end < -size()) { - return new_arr; - } - } else { // p_step < 0 - if (p_begin < -size() || p_end >= size()) { - return new_arr; - } + if (p_end < 0) { + p_end += size() + 1; } - int begin = _clamp_slice_index(p_begin); - int end = _clamp_slice_index(p_end); + ERR_FAIL_INDEX_V(p_begin, size(), result); + ERR_FAIL_INDEX_V(p_end, size() + 1, result); - int new_arr_size = MAX(((end - begin + p_step) / p_step), 0); - new_arr.resize(new_arr_size); + ERR_FAIL_COND_V_MSG(p_step > 0 && p_begin > p_end, result, "Slice is positive, but bounds is decreasing"); + ERR_FAIL_COND_V_MSG(p_step < 0 && p_begin < p_end, result, "Slice is negative, but bounds is increasing"); - if (p_step > 0) { - int dest_idx = 0; - for (int idx = begin; idx <= end; idx += p_step) { - ERR_FAIL_COND_V_MSG(dest_idx < 0 || dest_idx >= new_arr_size, Array(), "Bug in Array slice()"); - new_arr[dest_idx++] = p_deep ? get(idx).duplicate(p_deep) : get(idx); - } - } else { // p_step < 0 - int dest_idx = 0; - for (int idx = begin; idx >= end; idx += p_step) { - ERR_FAIL_COND_V_MSG(dest_idx < 0 || dest_idx >= new_arr_size, Array(), "Bug in Array slice()"); - new_arr[dest_idx++] = p_deep ? get(idx).duplicate(p_deep) : get(idx); - } + int result_size = (p_end - p_begin) / p_step; + result.resize(result_size); + + for (int src_idx = p_begin, dest_idx = 0; dest_idx < result_size; ++dest_idx) { + result[dest_idx] = p_deep ? get(src_idx).duplicate(true) : get(src_idx); + src_idx += p_step; } - return new_arr; + return result; } Array Array::filter(const Callable &p_callable) const { @@ -484,44 +514,19 @@ void Array::shuffle() { } } -template <typename Less> -_FORCE_INLINE_ int bisect(const Vector<Variant> &p_array, const Variant &p_value, bool p_before, const Less &p_less) { - int lo = 0; - int hi = p_array.size(); - if (p_before) { - while (lo < hi) { - const int mid = (lo + hi) / 2; - if (p_less(p_array.get(mid), p_value)) { - lo = mid + 1; - } else { - hi = mid; - } - } - } else { - while (lo < hi) { - const int mid = (lo + hi) / 2; - if (p_less(p_value, p_array.get(mid))) { - hi = mid; - } else { - lo = mid + 1; - } - } - } - return lo; -} - int Array::bsearch(const Variant &p_value, bool p_before) { ERR_FAIL_COND_V(!_p->typed.validate(p_value, "binary search"), -1); - return bisect(_p->array, p_value, p_before, _ArrayVariantSort()); + SearchArray<Variant, _ArrayVariantSort> avs; + return avs.bisect(_p->array.ptrw(), _p->array.size(), p_value, p_before); } int Array::bsearch_custom(const Variant &p_value, Callable p_callable, bool p_before) { ERR_FAIL_COND_V(!_p->typed.validate(p_value, "custom binary search"), -1); - _ArrayVariantSortCustom less; - less.func = p_callable; + SearchArray<Variant, _ArrayVariantSortCustom> avs; + avs.compare.func = p_callable; - return bisect(_p->array, p_value, p_before, less); + return avs.bisect(_p->array.ptrw(), _p->array.size(), p_value, p_before); } void Array::reverse() { @@ -546,7 +551,7 @@ Variant Array::pop_back() { Variant Array::pop_front() { if (!_p->array.is_empty()) { const Variant ret = _p->array.get(0); - _p->array.remove(0); + _p->array.remove_at(0); return ret; } return Variant(); @@ -573,7 +578,7 @@ Variant Array::pop_at(int p_pos) { _p->array.size())); const Variant ret = _p->array.get(p_pos); - _p->array.remove(p_pos); + _p->array.remove_at(p_pos); return ret; } |