117 lines
2.8 KiB
PHP
Executable File
117 lines
2.8 KiB
PHP
Executable File
<?php
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/**
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* League.Uri (https://uri.thephpleague.com)
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*
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* (c) Ignace Nyamagana Butera <nyamsprod@gmail.com>
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*
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* For the full copyright and license information, please view the LICENSE
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* file that was distributed with this source code.
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*/
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declare(strict_types=1);
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namespace League\Uri\UriTemplate;
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use League\Uri\Exceptions\TemplateCanNotBeExpanded;
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use function gettype;
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use function is_array;
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use function is_bool;
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use function is_object;
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use function is_scalar;
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use function method_exists;
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use function sprintf;
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final class VariableBag
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{
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/**
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* @var array<string,string|array<string>>
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*/
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private $variables = [];
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/**
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* @param iterable<string,mixed> $variables
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*/
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public function __construct(iterable $variables = [])
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{
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foreach ($variables as $name => $value) {
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$this->assign($name, $value);
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}
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}
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public static function __set_state(array $properties): self
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{
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return new self($properties['variables']);
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}
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/**
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* @return array<string,string|array<string>>
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*/
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public function all(): array
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{
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return $this->variables;
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}
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/**
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* Fetches the variable value if none found returns null.
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*
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* @return null|string|array<string>
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*/
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public function fetch(string $name)
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{
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return $this->variables[$name] ?? null;
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}
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/**
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* @param string|array<string> $value
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*/
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public function assign(string $name, $value): void
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{
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$this->variables[$name] = $this->normalizeValue($value, $name, true);
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}
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/**
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* @param mixed $value the value to be expanded
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*
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* @throws TemplateCanNotBeExpanded if the value contains nested list
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*
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* @return string|array<string>
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*/
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private function normalizeValue($value, string $name, bool $isNestedListAllowed)
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{
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if (is_bool($value)) {
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return true === $value ? '1' : '0';
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}
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if (null === $value || is_scalar($value) || (is_object($value) && method_exists($value, '__toString'))) {
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return (string) $value;
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}
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if (!is_array($value)) {
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throw new \TypeError(sprintf('The variable '.$name.' must be NULL, a scalar or a stringable object `%s` given', gettype($value)));
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}
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if (!$isNestedListAllowed) {
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throw TemplateCanNotBeExpanded::dueToNestedListOfValue($name);
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}
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foreach ($value as &$var) {
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$var = self::normalizeValue($var, $name, false);
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}
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unset($var);
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return $value;
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}
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/**
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* Replaces elements from passed variables into the current instance.
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*/
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public function replace(VariableBag $variables): self
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{
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$instance = clone $this;
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$instance->variables += $variables->variables;
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return $instance;
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}
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}
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