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only sort when necessary and faster hash

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* sort is much more expensive than count, so we only sort if we have something to sort
* could implement for ksort too, but advantage there is minimal since we almost always have more than 1 possibility
* use same hash algorithm as in other places (= faster)
* reduces runtime by 2-3%
This commit is contained in:
kkmuffme 2022-06-28 19:04:09 +02:00
parent 4db928e923
commit 4048bb9d8b
1 changed files with 9 additions and 3 deletions
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12
src/Psalm/Internal/Clause.php
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@ -10,15 +10,17 @@ use function array_map;
use function array_unique;
use function array_values;
use function count;
use function hash;
use function implode;
use function ksort;
use function md5;
use function reset;
use function serialize;
use function sort;
use function strpos;
use function substr;
use const PHP_VERSION_ID;
/**
* @internal
*
@ -106,11 +108,15 @@ class Clause
} else {
ksort($possibilities);
foreach ($possibilities as $i => $_) {
foreach ($possibilities as $i => $v) {
if (count($v) < 2) {
continue;
}
sort($possibilities[$i]);
}
$this->hash = md5(serialize($possibilities));
$data = serialize($possibilities);
$this->hash = PHP_VERSION_ID >= 80100 ? hash('xxh128', $data) : hash('md4', $data);
}
}