File vendor/ondrejmirtes/better-reflection/src/Reflection/ExprCacheHelper.php

1:	<?php
2:
3:	declare(strict_types=1);
4:
5:	namespace PHPStan\BetterReflection\Reflection;
6:
7:	use PhpParser\Node\Expr;
8:	use PHPStan\BetterReflection\BetterReflection;
9:
10:	final class ExprCacheHelper
11:	{
12:	/**
13:	* One instance for every export and import: a BetterReflection memoizes
14:	* its php-parser and printer, and building a Php8 parser (token map plus
15:	* every reduce callback) per imported expression dominated cache hydration.
16:	* @var \PHPStan\BetterReflection\BetterReflection\|null
17:	*/
18:	private static $betterReflection = null;
19:
20:	private static function betterReflection(): BetterReflection
21:	{
22:	return self::$betterReflection ??= new BetterReflection();
23:	}
24:
25:	/** @return array<string, mixed> */
26:	public static function export(Expr $expr): array
27:	{
28:	$br = self::betterReflection();
29:
30:	$attributes = [];
31:	foreach (['startLine', 'endLine', 'startTokenPos', 'startFilePos', 'endTokenPos', 'endFilePos'] as $key) {
32:	$attributes[$key] = $expr->getAttribute($key);
33:	}
34:
35:	return [
36:	'code' => $br->printer()->prettyPrintExpr($expr),
37:	'attributes' => $attributes,
38:	];
39:	}
40:
41:	/** @param array<string, mixed> $data */
42:	public static function import(array $data): Expr
43:	{
44:	$code = $data['code'];
45:	$attributes = $data['attributes'];
46:
47:	$expr = self::betterReflection()->originalPhpParser()->parse('<?php ' . $code . ';')[0]->expr;
48:	foreach ($attributes as $key => $value) {
49:	$expr->setAttribute($key, $value);
50:	}
51:
52:	return $expr;
53:	}
54:	}
55: