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:	/**
14:	* One instance for every export and import: a BetterReflection memoizes
15:	* its php-parser and printer, and building a Php8 parser (token map plus
16:	* every reduce callback) per imported expression dominated cache hydration.
17:	* @var \PHPStan\BetterReflection\BetterReflection\|null
18:	*/
19:	private static $betterReflection = null;
20:
21:	private static function betterReflection(): BetterReflection
22:	{
23:	return self::$betterReflection ??= new BetterReflection();
24:	}
25:
26:	/**
27:	* @return array<string, mixed
28:	*/
29:	public static function export(Expr $expr): array
30:	{
31:	$br = self::betterReflection();
32:
33:	$attributes = [];
34:	foreach (['startLine', 'endLine', 'startTokenPos', 'startFilePos', 'endTokenPos', 'endFilePos'] as $key) {
35:	$attributes[$key] = $expr->getAttribute($key);
36:	}
37:
38:	return [
39:	'code' => $br->printer()->prettyPrintExpr($expr),
40:	'attributes' => $attributes,
41:	];
42:	}
43:
44:	public static function import(array $data): Expr
45:	{
46:	$code = $data['code'];
47:	$attributes = $data['attributes'];
48:
49:	$expr = self::betterReflection()->originalPhpParser()->parse('<?php ' . $code . ';')[0]->expr;
50:	foreach ($attributes as $key => $value) {
51:	$expr->setAttribute($key, $value);
52:	}
53:
54:	return $expr;
55:	}
56:
57:	}
58: