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<?php namespace nyx\console; |
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// External dependencies |
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use nyx\diagnostics; |
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// Internal dependencies |
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use nyx\console\input\parameter\definitions; |
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/** |
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* Descriptor |
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* |
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* The particular methods are public for simplicity's sake but if you intend to use them directly, ensure you are |
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* checking for the type of this class, not for the interface, as the interface does not require them to be present |
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* for the contract to be fulfilled. |
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* |
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* @version 0.1.0 |
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* @author Michal Chojnacki <[email protected]> |
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* @copyright 2012-2017 Nyx Dev Team |
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* @link https://github.com/unyx/nyx |
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*/ |
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abstract class Descriptor implements interfaces\Descriptor |
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{ |
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/** |
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* @var array A map of supported types to their respective instance methods, minus the 'describe' prefix. |
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*/ |
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protected $types = [ |
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Application::class => 'Application', |
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Suite::class => 'Suite', |
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Command::class => 'Command', |
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input\Definition::class => 'InputDefinition', |
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input\Argument::class => 'InputArgument', |
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input\Option::class => 'InputOption', |
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input\Value::class => 'InputValue', |
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]; |
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/** |
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* {@inheritdoc} |
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*/ |
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public function describe($object, array $options = null) |
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{ |
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foreach ($this->types as $class => $type) { |
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if ($object instanceof $class) { |
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return $this->{'describe'.$type}($object, $options); |
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} |
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} |
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throw new \InvalidArgumentException("The type [".diagnostics\Debug::getTypeName($object)."] is not supported by this Descriptor."); |
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} |
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/** |
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* Describes an Application. |
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* |
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* @param Application $application The Application to describe. |
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* @param array $options Additional options to be considered by the Descriptor. |
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* @return mixed |
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*/ |
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abstract public function describeApplication(Application $application, array $options = null); |
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/** |
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* Describes a Suite. |
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* |
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* @param Suite $suite The Suite to describe. |
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* @param array $options Additional options to be considered by the Descriptor. |
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* @return mixed |
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*/ |
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abstract public function describeSuite(Suite $suite, array $options = null); |
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/** |
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* Describes a Command. |
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* |
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* @param Command $command The Command to describe. |
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* @param array $options Additional options to be considered by the Descriptor. |
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* @return mixed |
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*/ |
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abstract public function describeCommand(Command $command, array $options = null); |
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/** |
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* Describes an Input Definition. |
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* |
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* @param input\Definition $definition The Input Definition to describe. |
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* @param array $options Additional options to be considered by the Descriptor. |
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* @return mixed |
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*/ |
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abstract public function describeInputDefinition(input\Definition $definition, array $options = null); |
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/** |
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* Describes an Input Argument. |
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* |
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* @param input\Argument $argument The Input Argument to describe. |
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* @param array $options Additional options to be considered by the Descriptor. |
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* @return mixed |
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*/ |
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abstract public function describeInputArgument(input\Argument $argument, array $options = null); |
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/** |
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* Describes an Input Option. |
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* |
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* @param input\Option $option The Input Option to describe. |
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* @param array $options Additional options to be considered by the Descriptor. |
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* @return mixed |
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*/ |
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abstract public function describeInputOption(input\Option $option, array $options = null); |
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/** |
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* Describes an Input Value. |
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* |
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* @param input\Value $value The Input Value to describe. |
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* @param array $options Additional options to be considered by the Descriptor. |
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* @return mixed |
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*/ |
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abstract public function describeInputValue(input\Value $value, array $options = null); |
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/** |
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* Provides a synopsis (ie. a string describing the usage) for the given Command. |
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* |
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* Kept in the abstract Descriptor as the generated string is rather generic, but may require overrides for |
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* specific formats and therefore should not be kept within the Command class. |
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* |
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* @param Command $command The Command to provide the synopsis for. |
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* @return mixed |
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*/ |
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public function getCommandSynopsis(Command $command, array $options = null) |
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{ |
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$definition = $command->getDefinition(); |
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$inputOptions = $definition->options(); |
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$inputArguments = $definition->arguments(); |
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// We are following the docopt specification here. Options are followed by '--', followed by arguments. |
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// @link http://docopt.org |
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$output = $this->getInputOptionsSynopsis($inputOptions, $options); |
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if (!$inputOptions->isEmpty() && !$inputArguments->isEmpty()) { |
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$output .= ' [--] '; |
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} |
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return $output . $this->getInputArgumentsSynopsis($inputArguments, $options); |
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} |
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/** |
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* Provides a synopsis for the given Input Option Definitions. |
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* |
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* @param definitions\Options $definitions The Input Option Definitions to provide a synopsis for. |
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* @param array $options Additional options to be considered by the Descriptor. |
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* @return mixed |
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*/ |
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public function getInputOptionsSynopsis(definitions\Options $definitions, array $options = null) |
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{ |
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if ($definitions->isEmpty()) { |
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return ''; |
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} |
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// The 'short_synopsis' option is primarily used by the Help command which lists all Input Options |
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// separately from the synopsis for brevity. |
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if ($options['short_synopsis'] ?? false) { |
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return '[options]'; |
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} |
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$items = []; |
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foreach ($definitions as $option) { |
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$items[] = $this->getInputOptionSynopsis($option, $options); |
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} |
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return implode(' ', $items); |
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} |
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/** |
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* Provides a synopsis for the given Input Option. |
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* |
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* @param input\Option $definition The Input Option to provide a synopsis for. |
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* @param array $options Additional options to be considered by the Descriptor. |
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* @return mixed |
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*/ |
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public function getInputOptionSynopsis(input\Option $definition, array $options = null) |
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{ |
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$shortcut = $definition->getShortcut() ? sprintf('-%s|', $definition->getShortcut()) : ''; |
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if ($value = $definition->getValue()) { |
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$format = $value->is(input\Value::REQUIRED) ? '%s--%s="..."' : '%s--%s[="..."]'; |
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} else { |
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$format = '%s--%s'; |
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} |
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return sprintf('['.$format.']', $shortcut, $definition->getName()); |
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} |
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/** |
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* Provides a synopsis for the given Input Argument Definitions. |
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* |
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* @param definitions\Arguments $definitions The Input Argument Definitions to provide a synopsis for. |
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* @param array $options Additional options to be considered by the Descriptor. |
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* @return mixed |
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*/ |
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public function getInputArgumentsSynopsis(definitions\Arguments $definitions, array $options = null) |
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{ |
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if ($definitions->isEmpty()) { |
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return ''; |
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} |
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$items = []; |
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/** @var input\Argument $argument */ |
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foreach ($definitions as $argument) { |
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$items[] = $this->getInputArgumentSynopsis($argument, $options); |
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} |
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return implode(' ', $items); |
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} |
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/** |
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* Provides a synopsis for the given Input Argument. |
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* |
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* @param input\Argument $definition The Input Argument to provide a synopsis for. |
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* @param array $options Additional options to be considered by the Descriptor. |
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* @return mixed |
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*/ |
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public function getInputArgumentSynopsis(input\Argument $definition, array $options = null) |
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{ |
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$output = '\<'.$definition->getName().'>'; |
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$value = $definition->getValue(); |
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if (!$value->is(input\Value::REQUIRED)) { |
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$output = '['.$output.']'; |
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} elseif ($value instanceof input\values\Multiple) { |
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$output = $output.' ('.$output.')'; |
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} |
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if ($value instanceof input\values\Multiple) { |
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$output .= '...'; |
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} |
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return $output; |
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} |
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} |
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This check looks from parameters that have been defined for a function or method, but which are not used in the method body.