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- <?php
- /*
- * This file is part of the Symfony package.
- *
- * (c) Fabien Potencier <fabien@symfony.com>
- *
- * For the full copyright and license information, please view the LICENSE
- * file that was distributed with this source code.
- */
- namespace Symfony\Component\Console\Input;
- use Symfony\Component\Console\Command\Command;
- use Symfony\Component\Console\Completion\CompletionInput;
- use Symfony\Component\Console\Completion\CompletionSuggestions;
- use Symfony\Component\Console\Completion\Suggestion;
- use Symfony\Component\Console\Exception\InvalidArgumentException;
- use Symfony\Component\Console\Exception\LogicException;
- /**
- * Represents a command line argument.
- *
- * @author Fabien Potencier <fabien@symfony.com>
- */
- class InputArgument
- {
- /**
- * Providing an argument is required (e.g. just 'app:foo' is not allowed).
- */
- public const REQUIRED = 1;
- /**
- * Providing an argument is optional (e.g. 'app:foo' and 'app:foo bar' are both allowed). This is the default behavior of arguments.
- */
- public const OPTIONAL = 2;
- /**
- * The argument accepts multiple values and turn them into an array (e.g. 'app:foo bar baz' will result in value ['bar', 'baz']).
- */
- public const IS_ARRAY = 4;
- private int $mode;
- private string|int|bool|array|float|null $default;
- /**
- * @param string $name The argument name
- * @param int-mask-of<InputArgument::*>|null $mode The argument mode: a bit mask of self::REQUIRED, self::OPTIONAL and self::IS_ARRAY
- * @param string $description A description text
- * @param string|bool|int|float|array|null $default The default value (for self::OPTIONAL mode only)
- * @param array|\Closure(CompletionInput,CompletionSuggestions):list<string|Suggestion> $suggestedValues The values used for input completion
- *
- * @throws InvalidArgumentException When argument mode is not valid
- */
- public function __construct(
- private string $name,
- ?int $mode = null,
- private string $description = '',
- string|bool|int|float|array|null $default = null,
- private \Closure|array $suggestedValues = [],
- ) {
- if (null === $mode) {
- $mode = self::OPTIONAL;
- } elseif ($mode >= (self::IS_ARRAY << 1) || $mode < 1) {
- throw new InvalidArgumentException(\sprintf('Argument mode "%s" is not valid.', $mode));
- }
- $this->mode = $mode;
- $this->setDefault($default);
- }
- /**
- * Returns the argument name.
- */
- public function getName(): string
- {
- return $this->name;
- }
- /**
- * Returns true if the argument is required.
- *
- * @return bool true if parameter mode is self::REQUIRED, false otherwise
- */
- public function isRequired(): bool
- {
- return self::REQUIRED === (self::REQUIRED & $this->mode);
- }
- /**
- * Returns true if the argument can take multiple values.
- *
- * @return bool true if mode is self::IS_ARRAY, false otherwise
- */
- public function isArray(): bool
- {
- return self::IS_ARRAY === (self::IS_ARRAY & $this->mode);
- }
- /**
- * Sets the default value.
- */
- public function setDefault(string|bool|int|float|array|null $default): void
- {
- if ($this->isRequired() && null !== $default) {
- throw new LogicException('Cannot set a default value except for InputArgument::OPTIONAL mode.');
- }
- if ($this->isArray()) {
- if (null === $default) {
- $default = [];
- } elseif (!\is_array($default)) {
- throw new LogicException('A default value for an array argument must be an array.');
- }
- }
- $this->default = $default;
- }
- /**
- * Returns the default value.
- */
- public function getDefault(): string|bool|int|float|array|null
- {
- return $this->default;
- }
- /**
- * Returns true if the argument has values for input completion.
- */
- public function hasCompletion(): bool
- {
- return [] !== $this->suggestedValues;
- }
- /**
- * Supplies suggestions when command resolves possible completion options for input.
- *
- * @see Command::complete()
- */
- public function complete(CompletionInput $input, CompletionSuggestions $suggestions): void
- {
- $values = $this->suggestedValues;
- if ($values instanceof \Closure && !\is_array($values = $values($input))) {
- throw new LogicException(\sprintf('Closure for argument "%s" must return an array. Got "%s".', $this->name, get_debug_type($values)));
- }
- if ($values) {
- $suggestions->suggestValues($values);
- }
- }
- /**
- * Returns the description text.
- */
- public function getDescription(): string
- {
- return $this->description;
- }
- }
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