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Reduce number of token instances

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This commit is contained in:
Andrea Marco Sartori
2022-11-14 18:44:48 +10:00
parent 91d89c7209
commit acde9f4572
1 changed files with 10 additions and 10 deletions
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20
src/Tokens/Tokenizer.php
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@ -9,11 +9,11 @@ namespace Cerbero\JsonParser\Tokens;
class Tokenizer class Tokenizer
{ {
/** /**
* The map of token instances. * The map of token instances by type.
* *
* @var array<int, Token> * @var array<int, Token>
*/ */
protected static array $tokensMap = []; protected static array $tokensMap;
/** /**
* Instantiate the class. * Instantiate the class.
@ -21,23 +21,23 @@ class Tokenizer
*/ */
public function __construct() public function __construct()
{ {
$this->hydrateTokens(); static::$tokensMap ??= $this->hydrateTokensMap();
} }
/** /**
* Set the hydrated tokens * Retrieve the hydrated tokens map
* *
* @return void * @return array<int, Token>
*/ */
protected function hydrateTokens(): void protected function hydrateTokensMap(): array
{ {
if (static::$tokensMap) { $map = $instances = [];
return;
}
foreach (Tokens::MAP as $type => $class) { foreach (Tokens::MAP as $type => $class) {
static::$tokensMap[$type] = new $class(); $map[$type] = $instances[$class] ??= new $class();
} }
return $map;
} }
/** /**