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