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<?php |
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|
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/* |
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* This file is part of the Symfony package. |
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* |
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* (c) Fabien Potencier <fabien@symfony.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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namespace WindPressDeps\Symfony\Component\String; |
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|
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/** |
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* A string whose value is computed lazily by a callback. |
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* |
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* @author Nicolas Grekas <p@tchwork.com> |
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*/ |
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class LazyString implements \Stringable, \JsonSerializable |
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{ |
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private $value; |
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/** |
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* @param callable|array $callback A callable or a [Closure, method] lazy-callable |
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* |
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* @return static |
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*/ |
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public static function fromCallable($callback, ...$arguments) : self |
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{ |
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if (!\is_callable($callback) && !(\is_array($callback) && isset($callback[0]) && $callback[0] instanceof \Closure && 2 >= \count($callback))) { |
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throw new \TypeError(\sprintf('Argument 1 passed to "%s()" must be a callable or a [Closure, method] lazy-callable, "%s" given.', __METHOD__, \get_debug_type($callback))); |
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} |
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$lazyString = new static(); |
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$lazyString->value = static function () use(&$callback, &$arguments, &$value) : string { |
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if (null !== $arguments) { |
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if (!\is_callable($callback)) { |
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$callback[0] = $callback[0](); |
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$callback[1] = $callback[1] ?? '__invoke'; |
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} |
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$value = $callback(...$arguments); |
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$callback = self::getPrettyName($callback); |
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$arguments = null; |
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} |
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return $value ?? ''; |
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}; |
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return $lazyString; |
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} |
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/** |
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* @param string|int|float|bool|\Stringable $value |
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* |
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* @return static |
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*/ |
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public static function fromStringable($value) : self |
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{ |
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if (!self::isStringable($value)) { |
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throw new \TypeError(\sprintf('Argument 1 passed to "%s()" must be a scalar or a stringable object, "%s" given.', __METHOD__, \get_debug_type($value))); |
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} |
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if (\is_object($value)) { |
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return static::fromCallable([$value, '__toString']); |
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} |
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$lazyString = new static(); |
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$lazyString->value = (string) $value; |
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return $lazyString; |
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} |
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/** |
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* Tells whether the provided value can be cast to string. |
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*/ |
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public static final function isStringable($value) : bool |
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{ |
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return \is_string($value) || $value instanceof self || (\is_object($value) ? \method_exists($value, '__toString') : \is_scalar($value)); |
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} |
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/** |
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* Casts scalars and stringable objects to strings. |
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* |
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* @param object|string|int|float|bool $value |
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* |
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* @throws \TypeError When the provided value is not stringable |
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*/ |
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public static final function resolve($value) : string |
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{ |
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return $value; |
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} |
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/** |
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* @return string |
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*/ |
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public function __toString() |
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{ |
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if (\is_string($this->value)) { |
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return $this->value; |
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} |
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try { |
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return $this->value = ($this->value)(); |
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} catch (\Throwable $e) { |
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if (\TypeError::class === \get_class($e) && __FILE__ === $e->getFile()) { |
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$type = \explode(', ', $e->getMessage()); |
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$type = \substr(\array_pop($type), 0, -\strlen(' returned')); |
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$r = new \ReflectionFunction($this->value); |
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$callback = $r->getStaticVariables()['callback']; |
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$e = new \TypeError(\sprintf('Return value of %s() passed to %s::fromCallable() must be of the type string, %s returned.', $callback, static::class, $type)); |
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} |
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if (\PHP_VERSION_ID < 70400) { |
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// leverage the ErrorHandler component with graceful fallback when it's not available |
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return \trigger_error($e, \E_USER_ERROR); |
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} |
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throw $e; |
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} |
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} |
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public function __sleep() : array |
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{ |
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$this->__toString(); |
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return ['value']; |
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} |
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public function jsonSerialize() : string |
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{ |
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return $this->__toString(); |
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} |
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private function __construct() |
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{ |
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} |
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private static function getPrettyName(callable $callback) : string |
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{ |
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if (\is_string($callback)) { |
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return $callback; |
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} |
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if (\is_array($callback)) { |
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$class = \is_object($callback[0]) ? \get_debug_type($callback[0]) : $callback[0]; |
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$method = $callback[1]; |
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} elseif ($callback instanceof \Closure) { |
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$r = new \ReflectionFunction($callback); |
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if (\str_contains($r->name, '{closure') || !($class = \PHP_VERSION_ID >= 80111 ? $r->getClosureCalledClass() : $r->getClosureScopeClass())) { |
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return $r->name; |
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} |
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$class = $class->name; |
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$method = $r->name; |
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} else { |
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$class = \get_debug_type($callback); |
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$method = '__invoke'; |
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} |
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return $class . '::' . $method; |
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} |
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} |
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|
