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<?php |
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declare(strict_types = 1); |
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namespace Fixtures\Innmind\Immutable; |
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use Innmind\BlackBox\Set; |
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use Innmind\Immutable\Map as Structure; |
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/** |
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* {@inheritdoc} |
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* @template I |
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* @template J |
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*/ |
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final class Map implements Set |
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{ |
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private $keyType; |
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private $valueType; |
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private $keys; |
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private $values; |
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private $sizes; |
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public function __construct( |
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string $keyType, |
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string $valueType, |
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Set $keys, |
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Set $values, |
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Set\Integers $sizes = null |
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) { |
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$this->keyType = $keyType; |
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$this->valueType = $valueType; |
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$this->keys = $keys; |
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$this->values = $values; |
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$this->sizes = ($sizes ?? Set\Integers::between(0, 100))->take(100); |
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} |
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/** |
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* @return Set<Structure<I, J>> |
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*/ |
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public static function of( |
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string $keyType, |
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string $valueType, |
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Set $keys, |
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Set $values, |
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Set\Integers $sizes = null |
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): self { |
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return new self($keyType, $valueType, $keys, $values, $sizes); |
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} |
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public function take(int $size): Set |
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{ |
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$self = clone $this; |
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$self->sizes = $this->sizes->take($size); |
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return $self; |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function filter(callable $predicate): Set |
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{ |
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throw new \LogicException('Map set can\'t be filtered, underlying sets must be filtered beforehand'); |
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} |
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/** |
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* @return \Generator<Set\Value<Structure<I, J>>> |
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*/ |
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public function values(): \Generator |
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{ |
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$immutable = $this->keys->values()->current()->isImmutable() && |
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$this->values->values()->current()->isImmutable(); |
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foreach ($this->sizes->values() as $size) { |
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if ($immutable) { |
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yield Set\Value::immutable($this->generate($size->unwrap())); |
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} else { |
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yield Set\Value::mutable(fn() => $this->generate($size->unwrap())); |
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} |
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} |
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} |
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private function generate(int $size): Structure |
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{ |
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$map = Structure::of($this->keyType, $this->valueType); |
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$keys = $this->keys->take($size)->values(); |
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$values = $this->values->take($size)->values(); |
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while ($map->size() < $size) { |
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$map = ($map)( |
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$keys->current()->unwrap(), |
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$values->current()->unwrap(), |
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); |
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$keys->next(); |
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$values->next(); |
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} |
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return $map; |
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} |
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} |
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Innmind /
Immutable
Loading history...
Let?s assume that you have a directory layout like this:
. |-- OtherDir | |-- Bar.php | `-- Foo.php `-- SomeDir `-- Foo.phpand let?s assume the following content of
Bar.php:If both files
OtherDir/Foo.phpandSomeDir/Foo.phpare loaded in the same runtime, you will see a PHP error such as the following:PHP Fatal error: Cannot use SomeDir\Foo as Foo because the name is already in use in OtherDir/Foo.phpHowever, as
OtherDir/Foo.phpdoes not necessarily have to be loaded and the error is only triggered if it is loaded beforeOtherDir/Bar.php, this problem might go unnoticed for a while. In order to prevent this error from surfacing, you must import the namespace with a different alias: