CodeArgumentParser.php
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CodeArgumentParser.php
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	<?php

	/*
	* This file is part of Psy Shell.
	*
	* (c) 2012-2023 Justin Hileman
	*
	* For the full copyright and license information, please view the LICENSE
	* file that was distributed with this source code.
	*/

	namespace Psy\Command;

	use PhpParser\Parser;
	use Psy\Exception\ParseErrorException;
	use Psy\ParserFactory;

	/**
	* Class CodeArgumentParser.
	*/
	class CodeArgumentParser
	{
	private Parser $parser;

	public function __construct(?Parser $parser = null)
	{
	$this->parser = $parser ?? (new ParserFactory())->createParser();
	}

	/**
	* Lex and parse a string of code into statements.
	*
	* This is intended for code arguments, so the code string should not start with <?php
	*
	* @throws ParseErrorException
	*
	* @return array Statements
	*/
	public function parse(string $code): array
	{
	$code = '<?php '.$code;

	try {
	return $this->parser->parse($code);
	} catch (\PhpParser\Error $e) {
	if (\strpos($e->getMessage(), 'unexpected EOF') === false) {
	throw ParseErrorException::fromParseError($e);
	}

	// If we got an unexpected EOF, let's try it again with a semicolon.
	try {
	return $this->parser->parse($code.';');
	} catch (\PhpParser\Error $_e) {
	// Throw the original error, not the semicolon one.
	throw ParseErrorException::fromParseError($e);
	}
	}
	}
	}