speed up TrinaryLogic

- Split variadic arguments for and() and or(). Common case of single argument doesn't allocate an array.
- Add static fields mirroring $registry to skip one level of indirection.
- Numeric values chosen that & and | is the same as min and max. and()/or() optimized accordingly.
- Inline trivial create() method.
- Remove one unnecessary access to registry in method create().

this loop runs 1.8x faster (php 8.4.16, jit off)

$t = TrinaryLogic::createYes();
for ($i = 10_000_000; $i--;) {
	$t = $t->and(TrinaryLogic::createYes());
}

before: 1.125 s
now:    0.616 s

Author: kaja47

src/TrinaryLogic.php

@@ -14,31 +14,35 @@
  */
 final class TrinaryLogic
 {
+	private const YES = 3;
+	private const MAYBE = 1;
+	private const NO = 0;
 
-	private const YES = 1;
-	private const MAYBE = 0;
-	private const NO = -1;
 
 	/** @var self[] */
 	private static array $registry = [];
 
+	private static self $YES;
+	private static self $MAYBE;
+	private static self $NO;
+
 	private function __construct(private int $value)
 	{
 	}
 
 	public static function createYes(): self
 	{
-		return self::$registry[self::YES] ??= new self(self::YES);
+		return self::$YES ??= (self::$registry[self::YES] ??= new self(self::YES));
 	}
 
 	public static function createNo(): self
 	{
-		return self::$registry[self::NO] ??= new self(self::NO);
+		return self::$NO ??= (self::$registry[self::NO] ??= new self(self::NO));
 	}
 
 	public static function createMaybe(): self
 	{
-		return self::$registry[self::MAYBE] ??= new self(self::MAYBE);
+		return self::$MAYBE ??= (self::$registry[self::MAYBE] ??= new self(self::MAYBE));
 	}
 
 	public static function createFromBoolean(bool $value): self
@@ -49,8 +53,7 @@ public static function createFromBoolean(bool $value): self
 
 	private static function create(int $value): self
 	{
-		self::$registry[$value] ??= new self($value);
-		return self::$registry[$value];
+		return self::$registry[$value] ??= new self($value);
 	}
 
 	/**
@@ -89,17 +92,13 @@ public function toBooleanType(): BooleanType
 		return new ConstantBooleanType($this->value === self::YES);
 	}
 
-	public function and(self ...$operands): self
+	public function and(self $operand, self ...$rest): self
 	{
-		$min = $this->value;
-		foreach ($operands as $operand) {
-			if ($operand->value >= $min) {
-				continue;
-			}
-
-			$min = $operand->value;
+		$min = $this->value & $operand->value;
+		foreach ($rest as $operand) {
+			$min &= $operand->value;
 		}
-		return self::create($min);
+		return self::$registry[$min] ??= new self($min);
 	}
 
 	/**
@@ -129,17 +128,13 @@ public function lazyAnd(
 		return $this->and(...$results);
 	}
 
-	public function or(self ...$operands): self
+	public function or(self $operand, self ...$rest): self
 	{
-		$max = $this->value;
-		foreach ($operands as $operand) {
-			if ($operand->value < $max) {
-				continue;
-			}
-
-			$max = $operand->value;
+		$max = $this->value | $operand->value;
+		foreach ($rest as $operand) {
+			$max |= $operand->value;
 		}
-		return self::create($max);
+		return self::$registry[$max] ??= new self($max);
 	}
 
 	/**