Parameter.php
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Parameter.php
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	<?php
	/*---------------------------------------------------------------------------------------------
	* Copyright (c) Microsoft Corporation. All rights reserved.
	* Licensed under the MIT License. See License.txt in the project root for license information.
	--------------------------------------------------------------------------------------------/

	namespace Microsoft\PhpParser\Node;

	use Microsoft\PhpParser\MissingToken;
	use Microsoft\PhpParser\Node;
	use Microsoft\PhpParser\Token;

	class Parameter extends Node {
	/** @var AttributeGroup[]\|null */
	public $attributes;
	/** @var Token\|null */
	public $visibilityToken;
	/** @var Token[]\|null */
	public $modifiers;
	/** @var Token\|null */
	public $questionToken;
	/** @var DelimitedList\QualifiedNameList\|MissingToken\|null */
	public $typeDeclarationList;
	/** @var Token\|null */
	public $byRefToken;
	/** @var Token\|null */
	public $dotDotDotToken;
	/** @var Token */
	public $variableName;
	/** @var Token\|null */
	public $equalsToken;
	/** @var null\|Expression */
	public $default;

	const CHILD_NAMES = [
	'attributes',
	'visibilityToken',
	'modifiers',
	'questionToken',
	'typeDeclarationList',
	'byRefToken',
	'dotDotDotToken',
	'variableName',
	'equalsToken',
	'default'
	];

	public function isVariadic() {
	return $this->byRefToken !== null;
	}

	public function getName() {
	if (
	$this->variableName instanceof Token &&
	$name = substr($this->variableName->getText($this->getFileContents()), 1)
	) {
	return $name;
	}
	return null;
	}
	}