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<?php |
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/* |
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* This file is part of the webmozart/console package. |
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* |
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* (c) Bernhard Schussek <[email protected]> |
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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 Webmozart\Console\Api\Args\Format; |
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use InvalidArgumentException; |
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use Webmozart\Assert\Assert; |
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use Webmozart\Console\Util\StringUtil; |
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/** |
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* An input option. |
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* |
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* Args options are passed after the command name(s). Each option has a |
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* long name that is prefixed by two dashes ("--") and optionally a short name |
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* that is prefixed by one dash only ("-"). The long name must have at least |
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* two characters, the short name must contain a single letter only. |
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* |
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* In the example below, "--verbose" and "-v" are the long and short names of |
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* the same option: |
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* |
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* ``` |
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* $ console server --verbose |
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* $ console server -v |
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* ``` |
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* |
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* The long and short names are passed to the constructor of this class. The |
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* leading dashes can be omitted: |
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* |
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* ```php |
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* $option = new Option('verbose', 'v'); |
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* ``` |
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* |
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* If an option accepts a value, you must pass one of the flags |
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* {@link VALUE_REQUIRED}, {@link VALUE_OPTIONAL} or {@link MULTI_VALUED} to |
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* the constructor: |
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* |
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* ```php |
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* $option = new Option('format', 'f', Option::VALUE_REQUIRED); |
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* ``` |
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* |
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* * The flag {@link VALUE_REQUIRED} indicates that a value must always be |
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* passed. |
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* * The flag {@link VALUE_OPTIONAL} indicates that a value may optionally be |
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* passed. If no value is passed, the default value passed to the constructor |
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* is returned, which defaults to `null`. |
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* * The flag {@link MULTI_VALUED} indicates that the option can be passed |
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* multiple times with different values. The passed values are returned to |
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* the application as array. The value of a multi-valued option is always |
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* required. |
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* |
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* @since 1.0 |
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* |
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* @author Bernhard Schussek <[email protected]> |
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*/ |
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class Option extends AbstractOption |
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{ |
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/** |
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* Flag: The option has no value. |
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*/ |
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const NO_VALUE = 4; |
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/** |
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* Flag: The option has a required value. |
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*/ |
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const REQUIRED_VALUE = 8; |
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/** |
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* Flag: The option has an optional value. |
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*/ |
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const OPTIONAL_VALUE = 16; |
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/** |
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* Flag: The option can be stated multiple times with different values. |
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*/ |
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const MULTI_VALUED = 32; |
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/** |
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* Flag: The option value is parsed as string. |
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*/ |
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const STRING = 128; |
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/** |
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* Flag: The option value is parsed as boolean. |
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*/ |
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const BOOLEAN = 256; |
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/** |
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* Flag: The option value is parsed as integer. |
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*/ |
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const INTEGER = 512; |
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/** |
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* Flag: The option value is parsed as float. |
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*/ |
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const FLOAT = 1024; |
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/** |
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* Flag: The option value "null" should be parsed as `null`. |
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*/ |
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const NULLABLE = 2048; |
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/** |
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* @var mixed |
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*/ |
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private $defaultValue; |
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/** |
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* @var string |
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*/ |
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private $valueName; |
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/** |
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* Creates a new option. |
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* |
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* @param string $longName The long option name. |
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* @param string|null $shortName The short option name. |
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* @param int $flags A bitwise combination of the option flag |
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* constants. |
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* @param string $description A human-readable description of the option. |
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* @param mixed $defaultValue The default value (must be null for |
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* {@link VALUE_REQUIRED} or |
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* {@link VALUE_NONE}). |
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* @param string $valueName The name of the value to be used in |
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* usage examples of the option. |
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* |
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* @throws InvalidValueException If the default value is invalid. |
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*/ |
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public function __construct($longName, $shortName = null, $flags = 0, $description = null, $defaultValue = null, $valueName = '...') |
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{ |
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Assert::string($valueName, 'The option value name must be a string. Got: %s'); |
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Assert::notEmpty($valueName, 'The option value name must not be empty.'); |
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$this->assertFlagsValid($flags); |
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$this->addDefaultFlags($flags); |
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parent::__construct($longName, $shortName, $flags, $description); |
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$this->valueName = $valueName; |
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if ($this->acceptsValue() || null !== $defaultValue) { |
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$this->setDefaultValue($defaultValue); |
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} |
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} |
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/** |
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* Returns whether the option accepts a value. |
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* |
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* @return bool Returns `true` if a value flag other than {@link VALUE_NONE} |
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* was passed to the constructor. |
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*/ |
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397 |
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public function acceptsValue() |
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{ |
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return !(self::NO_VALUE & $this->flags); |
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} |
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/** |
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* Parses an option value. |
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* |
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* Pass one of the flags {@link STRING}, {@link BOOLEAN}, {@link INTEGER} |
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* and {@link FLOAT} to the constructor to configure the result of this |
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* method. You can optionally combine the flags with {@link NULLABLE} to |
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* support the conversion of "null" to `null`. |
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* |
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* @param mixed $value The value to parse. |
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* |
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* @return mixed The parsed value. |
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* |
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* @throws InvalidValueException |
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*/ |
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View Code Duplication |
public function parseValue($value) |
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{ |
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$nullable = ($this->flags & self::NULLABLE); |
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if ($this->flags & self::BOOLEAN) { |
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return StringUtil::parseBoolean($value, $nullable); |
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} |
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if ($this->flags & self::INTEGER) { |
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return StringUtil::parseInteger($value, $nullable); |
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} |
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if ($this->flags & self::FLOAT) { |
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return StringUtil::parseFloat($value, $nullable); |
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} |
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return StringUtil::parseString($value, $nullable); |
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} |
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/** |
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* Returns whether the option requires a value. |
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* |
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* @return bool Returns `true` if the flag {@link VALUE_REQUIRED} was |
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* passed to the constructor. |
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*/ |
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public function isValueRequired() |
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{ |
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return (bool) (self::REQUIRED_VALUE & $this->flags); |
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} |
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/** |
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* Returns whether the option takes an optional value. |
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* |
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* @return bool Returns `true` if the flag {@link VALUE_OPTIONAL} was |
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* passed to the constructor. |
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*/ |
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public function isValueOptional() |
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{ |
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return (bool) (self::OPTIONAL_VALUE & $this->flags); |
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} |
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/** |
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* Returns whether the option accepts multiple values. |
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* |
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* @return bool Returns `true` if the flag {@link MULTI_VALUED} was |
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* passed to the constructor. |
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*/ |
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public function isMultiValued() |
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{ |
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return (bool) (self::MULTI_VALUED & $this->flags); |
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} |
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/** |
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* Sets the default value of the option. |
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* |
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* If the option does not accept a value, this method throws an exception. |
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* |
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* If the option is multi-valued, the passed value must be an array or |
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* `null`. |
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* |
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* @param mixed $defaultValue The default value. |
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* |
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* @throws InvalidValueException If the default value is invalid. |
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*/ |
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View Code Duplication |
public function setDefaultValue($defaultValue = null) |
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{ |
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if (!$this->acceptsValue()) { |
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throw new InvalidValueException('Cannot set a default value when using the flag VALUE_NONE.'); |
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} |
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if ($this->isMultiValued()) { |
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if (null === $defaultValue) { |
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$defaultValue = array(); |
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} elseif (!is_array($defaultValue)) { |
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throw new InvalidValueException(sprintf( |
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'The default value of a multi-valued option must be an '. |
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'array. Got: %s', |
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is_object($defaultValue) ? get_class($defaultValue) : gettype($defaultValue) |
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)); |
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} |
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} |
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$this->defaultValue = $defaultValue; |
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} |
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/** |
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* Returns the default value of the option. |
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* |
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* @return mixed The default value. |
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*/ |
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public function getDefaultValue() |
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{ |
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return $this->defaultValue; |
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} |
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/** |
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* Returns the name of the option value. |
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* |
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* This name can be used as placeholder of the value when displaying the |
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* option's usage. |
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* |
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* @return string The name of the option value. |
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*/ |
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public function getValueName() |
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{ |
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return $this->valueName; |
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} |
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private function assertFlagsValid($flags) |
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{ |
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Assert::integer($flags, 'The option flags must be an integer. Got: %s'); |
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if ($flags & self::NO_VALUE) { |
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if ($flags & self::REQUIRED_VALUE) { |
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throw new InvalidArgumentException('The option flags VALUE_NONE and VALUE_REQUIRED cannot be combined.'); |
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} |
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109 |
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if ($flags & self::OPTIONAL_VALUE) { |
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throw new InvalidArgumentException('The option flags VALUE_NONE and VALUE_OPTIONAL cannot be combined.'); |
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} |
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if ($flags & self::MULTI_VALUED) { |
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throw new InvalidArgumentException('The option flags VALUE_NONE and MULTI_VALUED cannot be combined.'); |
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} |
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} |
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if (($flags & self::OPTIONAL_VALUE) && ($flags & self::MULTI_VALUED)) { |
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1 |
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throw new InvalidArgumentException('The option flags VALUE_OPTIONAL and MULTI_VALUED cannot be combined.'); |
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} |
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268 |
View Code Duplication |
if ($flags & self::STRING) { |
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11 |
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if ($flags & self::BOOLEAN) { |
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throw new InvalidArgumentException('The option flags STRING and BOOLEAN cannot be combined.'); |
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} |
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10 |
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if ($flags & self::INTEGER) { |
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throw new InvalidArgumentException('The option flags STRING and INTEGER cannot be combined.'); |
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} |
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9 |
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if ($flags & self::FLOAT) { |
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throw new InvalidArgumentException('The option flags STRING and FLOAT cannot be combined.'); |
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} |
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} elseif ($flags & self::BOOLEAN) { |
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6 |
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if ($flags & self::INTEGER) { |
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1 |
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throw new InvalidArgumentException('The option flags BOOLEAN and INTEGER cannot be combined.'); |
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} |
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|
|
|
|
325
|
5 |
|
if ($flags & self::FLOAT) { |
|
326
|
5 |
|
throw new InvalidArgumentException('The option flags BOOLEAN and FLOAT cannot be combined.'); |
|
327
|
|
|
} |
|
328
|
251 |
|
} elseif ($flags & self::INTEGER) { |
|
329
|
9 |
|
if ($flags & self::FLOAT) { |
|
330
|
1 |
|
throw new InvalidArgumentException('The option flags INTEGER and FLOAT cannot be combined.'); |
|
331
|
|
|
} |
|
332
|
|
|
} |
|
333
|
262 |
|
} |
|
334
|
|
|
|
|
335
|
262 |
|
private function addDefaultFlags(&$flags) |
|
336
|
|
|
{ |
|
337
|
262 |
View Code Duplication |
if (!($flags & (self::NO_VALUE | self::REQUIRED_VALUE | self::OPTIONAL_VALUE | self::MULTI_VALUED))) { |
|
|
|
|
|
|
338
|
121 |
|
$flags |= self::NO_VALUE; |
|
339
|
|
|
} |
|
340
|
|
|
|
|
341
|
262 |
View Code Duplication |
if (!($flags & (self::STRING | self::BOOLEAN | self::INTEGER | self::FLOAT))) { |
|
|
|
|
|
|
342
|
237 |
|
$flags |= self::STRING; |
|
343
|
|
|
} |
|
344
|
|
|
|
|
345
|
262 |
|
if (($flags & self::MULTI_VALUED) && !($flags & self::REQUIRED_VALUE)) { |
|
346
|
3 |
|
$flags |= self::REQUIRED_VALUE; |
|
347
|
|
|
} |
|
348
|
262 |
|
} |
|
349
|
|
|
} |
|
350
|
|
|
|
This check looks for
@paramannotations where the type inferred by our type inference engine differs from the declared type.It makes a suggestion as to what type it considers more descriptive.
Most often this is a case of a parameter that can be null in addition to its declared types.