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| 1 | <?php |
| 2 | |
| 3 | declare(strict_types=1); |
| 4 | |
| 5 | namespace PeServer\Core\Collection; |
| 6 | |
| 7 | use ArrayAccess; |
| 8 | use ArrayIterator; |
| 9 | use Countable; |
| 10 | use IteratorAggregate; |
| 11 | use Traversable; |
| 12 | use PeServer\Core\Text; |
| 13 | use PeServer\Core\Throws\IndexOutOfRangeException; |
| 14 | use PeServer\Core\Throws\KeyNotFoundException; |
| 15 | use PeServer\Core\Throws\NotImplementedException; |
| 16 | use PeServer\Core\Throws\NotSupportedException; |
| 17 | |
| 18 | /** |
| 19 | * キーとして大文字小文字を区別しない連想配列。 |
| 20 | * |
| 21 | * * 追加という概念はない(`$array[] = 'xxx'`) |
| 22 | * * 数値も受け取れるけど仕方ないとして割り切る |
| 23 | * |
| 24 | * @template TKey of array-key |
| 25 | * @template TValue |
| 26 | * @implements ArrayAccess<TKey,TValue> |
| 27 | * @implements IteratorAggregate<TKey,TValue> |
| 28 | */ |
| 29 | class CaseInsensitiveKeyArray implements ArrayAccess, Countable, IteratorAggregate |
| 30 | { |
| 31 | #region variable |
| 32 | |
| 33 | /** |
| 34 | * 実データ。 |
| 35 | * |
| 36 | * @var array<string|int,mixed> |
| 37 | * @phpstan-var array<array-key,TValue> |
| 38 | */ |
| 39 | private array $data = []; |
| 40 | /** |
| 41 | * self::toMapKey適用キーに対する実キーをマッピング。 |
| 42 | * |
| 43 | * @var array<string,string> |
| 44 | */ |
| 45 | private array $map = []; |
| 46 | |
| 47 | #endregion |
| 48 | |
| 49 | /** |
| 50 | * 生成。 |
| 51 | * |
| 52 | * @param array<string,string|int>|null $input |
| 53 | * @phpstan-param array<array-key,TValue>|null $input |
| 54 | */ |
| 55 | public function __construct(array $input = null) |
| 56 | { |
| 57 | if ($input !== null) { |
| 58 | foreach ($input as $key => $value) { |
| 59 | $this->offsetSet($key, $value); |
| 60 | } |
| 61 | } |
| 62 | } |
| 63 | |
| 64 | #region function |
| 65 | |
| 66 | /** |
| 67 | * オフセット名へのマッピング名に変換。 |
| 68 | * |
| 69 | * @param string $offset |
| 70 | * @return string |
| 71 | */ |
| 72 | public function toMapKey(string $offset): string |
| 73 | { |
| 74 | return Text::toLower($offset); |
| 75 | } |
| 76 | |
| 77 | #endregion |
| 78 | |
| 79 | #region ArrayAccess |
| 80 | |
| 81 | /** |
| 82 | * `ArrayAccess:offsetExists` |
| 83 | * |
| 84 | * @param string|int $offset |
| 85 | * @return bool |
| 86 | */ |
| 87 | public function offsetExists(mixed $offset): bool |
| 88 | { |
| 89 | if (isset($this->data[$offset])) { |
| 90 | return true; |
| 91 | } |
| 92 | if (is_int($offset)) { |
| 93 | return false; |
| 94 | } |
| 95 | |
| 96 | $mapOffset = $this->toMapKey($offset); |
| 97 | if (isset($this->map[$mapOffset])) { |
| 98 | return true; |
| 99 | } |
| 100 | |
| 101 | return false; |
| 102 | } |
| 103 | |
| 104 | /** |
| 105 | * `ArrayAccess:offsetGet` |
| 106 | * |
| 107 | * @param string|int $offset |
| 108 | * @return mixed |
| 109 | * @phpstan-return TValue |
| 110 | */ |
| 111 | public function offsetGet(mixed $offset): mixed |
| 112 | { |
| 113 | if (isset($this->data[$offset])) { |
| 114 | return $this->data[$offset]; |
| 115 | } |
| 116 | if (is_int($offset)) { |
| 117 | throw new IndexOutOfRangeException('$offset: ' . $offset); |
| 118 | } |
| 119 | |
| 120 | $mapOffset = $this->toMapKey($offset); |
| 121 | if (isset($this->map[$mapOffset])) { |
| 122 | return $this->data[$this->map[$mapOffset]]; |
| 123 | } |
| 124 | |
| 125 | throw new KeyNotFoundException('$offset: ' . $offset); |
| 126 | } |
| 127 | |
| 128 | /** |
| 129 | * `ArrayAccess:offsetSet` |
| 130 | * |
| 131 | * @param string|int|null $offset |
| 132 | * @param mixed $value |
| 133 | * @phpstan-param TValue $value |
| 134 | */ |
| 135 | public function offsetSet(mixed $offset, mixed $value): void |
| 136 | { |
| 137 | if ($offset === null) { |
| 138 | throw new NotSupportedException(); |
| 139 | } |
| 140 | if (is_int($offset)) { |
| 141 | $this->data[$offset] = $value; |
| 142 | return; |
| 143 | } |
| 144 | if (is_double($offset)) { //@phpstan-ignore-line サポートしているがドキュメント上は通常配列キー限定 |
| 145 | $floatOffset = (string)$offset; |
| 146 | $this->data[$floatOffset] = $value; |
| 147 | return; |
| 148 | } |
| 149 | |
| 150 | $mapOffset = $this->toMapKey($offset); |
| 151 | if (isset($this->map[$mapOffset])) { |
| 152 | $this->data[$this->map[$mapOffset]] = $value; |
| 153 | } else { |
| 154 | $this->data[$offset] = $value; |
| 155 | $this->map[$mapOffset] = $offset; |
| 156 | } |
| 157 | } |
| 158 | |
| 159 | /** |
| 160 | * `ArrayAccess:offsetUnset` |
| 161 | * |
| 162 | * @param string|int $offset |
| 163 | */ |
| 164 | public function offsetUnset(mixed $offset): void |
| 165 | { |
| 166 | if (is_int($offset)) { |
| 167 | unset($this->data[$offset]); |
| 168 | return; |
| 169 | } |
| 170 | if (is_double($offset)) { //@phpstan-ignore-line サポートしているがドキュメント上は通常配列キー限定 |
| 171 | unset($this->data[(string)$offset]); |
| 172 | return; |
| 173 | } |
| 174 | |
| 175 | $mapOffset = $this->toMapKey($offset); |
| 176 | unset($this->data[$this->map[$mapOffset]]); |
| 177 | unset($this->map[$mapOffset]); |
| 178 | } |
| 179 | |
| 180 | #endregion |
| 181 | |
| 182 | #region Countable |
| 183 | |
| 184 | public function count(): int |
| 185 | { |
| 186 | return count($this->data); |
| 187 | } |
| 188 | |
| 189 | #endregion |
| 190 | |
| 191 | #region IteratorAggregate |
| 192 | |
| 193 | public function getIterator(): Traversable |
| 194 | { |
| 195 | return new ArrayIterator($this->data); |
| 196 | } |
| 197 | |
| 198 | #endregion |
| 199 | } |