@@ 3184-3200 (lines=17) @@ | ||
3181 | * @psalm-return static<TKey,T> |
|
3182 | * @psalm-mutation-free |
|
3183 | */ |
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3184 | public function indexBy($key): self |
|
3185 | { |
|
3186 | // init |
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3187 | $results = []; |
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3188 | ||
3189 | foreach ($this->getGenerator() as $a) { |
|
3190 | if (\array_key_exists($key, $a) === true) { |
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3191 | $results[$a[$key]] = $a; |
|
3192 | } |
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3193 | } |
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3194 | ||
3195 | return static::create( |
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3196 | $results, |
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3197 | $this->iteratorClass, |
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3198 | false |
|
3199 | ); |
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3200 | } |
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3201 | ||
3202 | /** |
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3203 | * alias: for "Arrayy->searchIndex()" |
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@@ 4256-4273 (lines=18) @@ | ||
4253 | * @psalm-return static<TKey,T> |
|
4254 | * @psalm-mutation-free |
|
4255 | */ |
|
4256 | public function only(array $keys): self |
|
4257 | { |
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4258 | $keys = \array_flip($keys); |
|
4259 | ||
4260 | $generator = function () use ($keys): \Generator { |
|
4261 | foreach ($this->getGenerator() as $key => $value) { |
|
4262 | if (isset($keys[$key])) { |
|
4263 | yield $key => $value; |
|
4264 | } |
|
4265 | } |
|
4266 | }; |
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4267 | ||
4268 | return static::create( |
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4269 | $generator, |
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4270 | $this->iteratorClass, |
|
4271 | false |
|
4272 | ); |
|
4273 | } |
|
4274 | ||
4275 | /** |
|
4276 | * Pad array to the specified size with a given value. |