More warnings from Psalm. Reduced Psalm config size

composer.json

@@ -1,9 +1,9 @@
 {
   "name": "dnw/php-trueskill",
-  "description": "Trueskill implementation by Moserware updated for PHP 8.2",
+  "description": "Trueskill implementation by Moserware updated for PHP 8.4",
   "keywords": ["trueskill", "matchmaking", "ranking", "skill", "elo"],
   "require": {
-    "php": "^8.2"
+    "php": "^8.4"
   },
   "require-dev": {
     "phpstan/phpstan": "^1.0",
@@ -51,7 +51,6 @@
       "@test",
       "@lint",
       "@analyze",
-      "@document",
       "@metrics",
       "@html"
     ]

composer.lock

@@ -4,21 +4,21 @@
         "Read more about it at https://getcomposer.org/doc/01-basic-usage.md#installing-dependencies",
         "This file is @generated automatically"
     ],
-    "content-hash": "9bcad23ed6b67a87b77c11db92614e65",
+    "content-hash": "b812db257eb7996abdfd76cc1a74431f",
     "packages": [],
     "packages-dev": [
         {
             "name": "amphp/amp",
-            "version": "v3.0.2",
+            "version": "v3.1.0",
             "source": {
                 "type": "git",
                 "url": "https://github.com/amphp/amp.git",
-                "reference": "138801fb68cfc9c329da8a7b39d01ce7291ee4b0"
+                "reference": "7cf7fef3d667bfe4b2560bc87e67d5387a7bcde9"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/amphp/amp/zipball/138801fb68cfc9c329da8a7b39d01ce7291ee4b0",
+                "url": "https://api.github.com/repos/amphp/amp/zipball/7cf7fef3d667bfe4b2560bc87e67d5387a7bcde9",
-                "reference": "138801fb68cfc9c329da8a7b39d01ce7291ee4b0",
+                "reference": "7cf7fef3d667bfe4b2560bc87e67d5387a7bcde9",
                 "shasum": ""
             },
             "require": {
@@ -78,7 +78,7 @@
             ],
             "support": {
                 "issues": "https://github.com/amphp/amp/issues",
-                "source": "https://github.com/amphp/amp/tree/v3.0.2"
+                "source": "https://github.com/amphp/amp/tree/v3.1.0"
             },
             "funding": [
                 {
@@ -86,7 +86,7 @@
                     "type": "github"
                 }
             ],
-            "time": "2024-05-10T21:37:46+00:00"
+            "time": "2025-01-26T16:07:39+00:00"
         },
         {
             "name": "amphp/byte-stream",
@@ -227,16 +227,16 @@
         },
         {
             "name": "amphp/pipeline",
-            "version": "v1.2.1",
+            "version": "v1.2.2",
             "source": {
                 "type": "git",
                 "url": "https://github.com/amphp/pipeline.git",
-                "reference": "66c095673aa5b6e689e63b52d19e577459129ab3"
+                "reference": "97cbf289f4d8877acfe58dd90ed5a4370a43caa4"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/amphp/pipeline/zipball/66c095673aa5b6e689e63b52d19e577459129ab3",
+                "url": "https://api.github.com/repos/amphp/pipeline/zipball/97cbf289f4d8877acfe58dd90ed5a4370a43caa4",
-                "reference": "66c095673aa5b6e689e63b52d19e577459129ab3",
+                "reference": "97cbf289f4d8877acfe58dd90ed5a4370a43caa4",
                 "shasum": ""
             },
             "require": {
@@ -282,7 +282,7 @@
             ],
             "support": {
                 "issues": "https://github.com/amphp/pipeline/issues",
-                "source": "https://github.com/amphp/pipeline/tree/v1.2.1"
+                "source": "https://github.com/amphp/pipeline/tree/v1.2.2"
             },
             "funding": [
                 {
@@ -290,7 +290,7 @@
                     "type": "github"
                 }
             ],
-            "time": "2024-07-04T00:56:47+00:00"
+            "time": "2025-01-19T15:42:46+00:00"
         },
         {
             "name": "amphp/serialization",
@@ -1641,16 +1641,16 @@
         },
         {
             "name": "phpstan/phpstan",
-            "version": "1.12.15",
+            "version": "1.12.16",
             "source": {
                 "type": "git",
                 "url": "https://github.com/phpstan/phpstan.git",
-                "reference": "c91d4e8bc056f46cf653656e6f71004b254574d1"
+                "reference": "e0bb5cb78545aae631220735aa706eac633a6be9"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/phpstan/phpstan/zipball/c91d4e8bc056f46cf653656e6f71004b254574d1",
+                "url": "https://api.github.com/repos/phpstan/phpstan/zipball/e0bb5cb78545aae631220735aa706eac633a6be9",
-                "reference": "c91d4e8bc056f46cf653656e6f71004b254574d1",
+                "reference": "e0bb5cb78545aae631220735aa706eac633a6be9",
                 "shasum": ""
             },
             "require": {
@@ -1695,7 +1695,7 @@
                     "type": "github"
                 }
             ],
-            "time": "2025-01-05T16:40:22+00:00"
+            "time": "2025-01-21T14:50:05+00:00"
         },
         {
             "name": "phpunit/php-code-coverage",
@@ -2022,16 +2022,16 @@
         },
         {
             "name": "phpunit/phpunit",
-            "version": "11.5.2",
+            "version": "11.5.3",
             "source": {
                 "type": "git",
                 "url": "https://github.com/sebastianbergmann/phpunit.git",
-                "reference": "153d0531b9f7e883c5053160cad6dd5ac28140b3"
+                "reference": "30e319e578a7b5da3543073e30002bf82042f701"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/sebastianbergmann/phpunit/zipball/153d0531b9f7e883c5053160cad6dd5ac28140b3",
+                "url": "https://api.github.com/repos/sebastianbergmann/phpunit/zipball/30e319e578a7b5da3543073e30002bf82042f701",
-                "reference": "153d0531b9f7e883c5053160cad6dd5ac28140b3",
+                "reference": "30e319e578a7b5da3543073e30002bf82042f701",
                 "shasum": ""
             },
             "require": {
@@ -2052,7 +2052,7 @@
                 "phpunit/php-timer": "^7.0.1",
                 "sebastian/cli-parser": "^3.0.2",
                 "sebastian/code-unit": "^3.0.2",
-                "sebastian/comparator": "^6.2.1",
+                "sebastian/comparator": "^6.3.0",
                 "sebastian/diff": "^6.0.2",
                 "sebastian/environment": "^7.2.0",
                 "sebastian/exporter": "^6.3.0",
@@ -2103,7 +2103,7 @@
             "support": {
                 "issues": "https://github.com/sebastianbergmann/phpunit/issues",
                 "security": "https://github.com/sebastianbergmann/phpunit/security/policy",
-                "source": "https://github.com/sebastianbergmann/phpunit/tree/11.5.2"
+                "source": "https://github.com/sebastianbergmann/phpunit/tree/11.5.3"
             },
             "funding": [
                 {
@@ -2119,7 +2119,7 @@
                     "type": "tidelift"
                 }
             ],
-            "time": "2024-12-21T05:51:08+00:00"
+            "time": "2025-01-13T09:36:00+00:00"
         },
         {
             "name": "psalm/plugin-phpunit",
@@ -4231,12 +4231,12 @@
             "source": {
                 "type": "git",
                 "url": "https://github.com/vimeo/psalm.git",
-                "reference": "765dcbfe43002e52e4808b65561842784fe7bcc7"
+                "reference": "a17fdd709d1322edc47e8fa53c18b1d94ce8bdd8"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/vimeo/psalm/zipball/765dcbfe43002e52e4808b65561842784fe7bcc7",
+                "url": "https://api.github.com/repos/vimeo/psalm/zipball/a17fdd709d1322edc47e8fa53c18b1d94ce8bdd8",
-                "reference": "765dcbfe43002e52e4808b65561842784fe7bcc7",
+                "reference": "a17fdd709d1322edc47e8fa53c18b1d94ce8bdd8",
                 "shasum": ""
             },
             "require": {
@@ -4254,15 +4254,15 @@
                 "ext-simplexml": "*",
                 "ext-tokenizer": "*",
                 "felixfbecker/advanced-json-rpc": "^3.1",
-                "felixfbecker/language-server-protocol": "^1.5.2",
+                "felixfbecker/language-server-protocol": "^1.5.3",
                 "fidry/cpu-core-counter": "^0.4.1 || ^0.5.1 || ^1.0.0",
                 "netresearch/jsonmapper": "^1.0 || ^2.0 || ^3.0 || ^4.0",
                 "nikic/php-parser": "^5.0.0",
                 "php": "~8.1.17 || ~8.2.4 || ~8.3.0 || ~8.4.0",
                 "sebastian/diff": "^4.0 || ^5.0 || ^6.0",
                 "spatie/array-to-xml": "^2.17.0 || ^3.0",
-                "symfony/console": "^4.1.6 || ^5.0 || ^6.0 || ^7.0",
+                "symfony/console": "^6.0 || ^7.0",
-                "symfony/filesystem": "^5.4 || ^6.0 || ^7.0"
+                "symfony/filesystem": "^6.0 || ^7.0"
             },
             "provide": {
                 "psalm/psalm": "self.version"
@@ -4279,10 +4279,10 @@
                 "phpstan/phpdoc-parser": "^1.6",
                 "phpunit/phpunit": "^9.6",
                 "psalm/plugin-mockery": "^1.1",
-                "psalm/plugin-phpunit": "^0.18",
+                "psalm/plugin-phpunit": "^0.19",
                 "slevomat/coding-standard": "^8.4",
                 "squizlabs/php_codesniffer": "^3.6",
-                "symfony/process": "^4.4 || ^5.0 || ^6.0 || ^7.0"
+                "symfony/process": "^6.0 || ^7.0"
             },
             "suggest": {
                 "ext-curl": "In order to send data to shepherd",
@@ -4303,7 +4303,8 @@
                     "dev-3.x": "3.x-dev",
                     "dev-4.x": "4.x-dev",
                     "dev-5.x": "5.x-dev",
-                    "dev-master": "6.x-dev"
+                    "dev-6.x": "6.x-dev",
+                    "dev-master": "7.x-dev"
                 }
             },
             "autoload": {
@@ -4332,7 +4333,7 @@
                 "issues": "https://github.com/vimeo/psalm/issues",
                 "source": "https://github.com/vimeo/psalm"
             },
-            "time": "2024-12-15T08:19:36+00:00"
+            "time": "2025-01-27T10:58:44+00:00"
         },
         {
             "name": "webmozart/assert",
@@ -4402,7 +4403,7 @@
     "prefer-stable": false,
     "prefer-lowest": false,
     "platform": {
-        "php": "^8.2"
+        "php": "^8.4"
     },
     "platform-dev": {},
     "plugin-api-version": "2.6.0"

psalm.xml

@@ -12,11 +12,5 @@
         <directory name="src"/>
         <directory name="tests"/>
         <directory name="benchmark"/>
-        <ignoreFiles>
-            <directory name="vendor"/>
-        </ignoreFiles>
     </projectFiles>
-    <plugins>
-        <pluginClass class="Psalm\PhpUnitPlugin\Plugin"/>
-    </plugins>
 </psalm>

src/FactorGraphs/ScheduleLoop.php

@@ -10,6 +10,7 @@ class ScheduleLoop extends Schedule
     {
     }
 
+    #[\Override]
     public function visit(int $depth = -1, int $maxDepth = 0): float
     {
         $delta = $this->scheduleToLoop->visit($depth + 1, $maxDepth);

src/FactorGraphs/ScheduleSequence.php

@@ -13,6 +13,7 @@ class ScheduleSequence extends Schedule
     {
     }
 
+    #[\Override]
     public function visit(int $depth = -1, int $maxDepth = 0): float
     {
         $maxDelta = 0;

src/FactorGraphs/ScheduleStep.php

@@ -10,6 +10,7 @@ class ScheduleStep extends Schedule
     {
     }
 
+    #[\Override]
     public function visit(int $depth = -1, int $maxDepth = 0): float
     {
         return $this->factor->updateMessageIndex($this->index);

src/GameInfo.php

@@ -12,18 +12,18 @@ class GameInfo
     /**
      * Default initial mean / 6
      */
-    private const DEFAULT_BETA = 4.1666666666666666666666666666667;
+    private const float DEFAULT_BETA = 4.1666666666666666666666666666667;
 
-    private const DEFAULT_DRAW_PROBABILITY = 0.10;
+    private const float DEFAULT_DRAW_PROBABILITY = 0.10;
 
     /**
      * Default initial mean / 300
      */
-    private const DEFAULT_DYNAMICS_FACTOR = 0.083333333333333333333333333333333;
+    private const float DEFAULT_DYNAMICS_FACTOR = 0.083333333333333333333333333333333;
 
-    private const DEFAULT_INITIAL_MEAN = 25.0;
+    private const float DEFAULT_INITIAL_MEAN = 25.0;
 
-    private const DEFAULT_INITIAL_STANDARD_DEVIATION = 8.3333333333333333333333333333333;
+    private const float DEFAULT_INITIAL_STANDARD_DEVIATION = 8.3333333333333333333333333333333;
 
     public function __construct(
         private readonly float $initialMean = self::DEFAULT_INITIAL_MEAN,

src/Numerics/GaussianDistribution.php

@@ -12,9 +12,9 @@ namespace DNW\Skills\Numerics;
  */
 class GaussianDistribution
 {
-    private const DEFAULT_STANDARD_DEVIATION = 1.0;
+    private const float DEFAULT_STANDARD_DEVIATION = 1.0;
 
-    private const DEFAULT_MEAN = 0.0;
+    private const float DEFAULT_MEAN = 0.0;
 
     /**
      * Square Root 2π.
@@ -23,7 +23,7 @@ class GaussianDistribution
      *
      * @link https://www.wolframalpha.com/input?i=sqrt%282*pi%29 Source of value
      */
-    private const M_SQRT_2_PI = 2.5066282746310005024157652848110452530069867406099383166299235763;
+    private const float M_SQRT_2_PI = 2.5066282746310005024157652848110452530069867406099383166299235763;
 
     /**
      * Log of Square Root 2π.
@@ -32,7 +32,7 @@ class GaussianDistribution
      *
      * @link https://www.wolframalpha.com/input?i=log%28sqrt%282*pi%29%29 Source of value
      */
-    private const M_LOG_SQRT_2_PI = 0.9189385332046727417803297364056176398613974736377834128171515404;
+    private const float M_LOG_SQRT_2_PI = 0.9189385332046727417803297364056176398613974736377834128171515404;
 
     // precision and precisionMean are used because they make multiplying and dividing simpler
     // (see the accompanying math paper for more details)

src/Numerics/Matrix.php

@@ -8,7 +8,7 @@ use Exception;
 
 class Matrix
 {
-    public const ERROR_TOLERANCE = 0.0000000001;
+    public const float ERROR_TOLERANCE = 0.0000000001;
 
     /**
      * @param array<int,array<int,float>> $matrixRowData

src/Player.php

@@ -9,9 +9,9 @@ namespace DNW\Skills;
  */
 class Player implements ISupportPartialPlay, ISupportPartialUpdate
 {
-    private const DEFAULT_PARTIAL_PLAY_PERCENTAGE = 1.0; // = 100% play time
+    private const float DEFAULT_PARTIAL_PLAY_PERCENTAGE = 1.0; // = 100% play time
 
-    private const DEFAULT_PARTIAL_UPDATE_PERCENTAGE = 1.0;
+    private const float DEFAULT_PARTIAL_UPDATE_PERCENTAGE = 1.0;
 
     private readonly float $PartialPlayPct;
 
@@ -47,6 +47,7 @@ class Player implements ISupportPartialPlay, ISupportPartialUpdate
     /**
      * Indicates the percent of the time the player should be weighted where 0.0 indicates the player didn't play and 1.0 indicates the player played 100% of the time.
      */
+    #[\Override]
     public function getPartialPlayPercentage(): float
     {
         return $this->PartialPlayPct;
@@ -55,6 +56,7 @@ class Player implements ISupportPartialPlay, ISupportPartialUpdate
     /**
      * Indicated how much of a skill update a player should receive where 0.0 represents no update and 1.0 represents 100% of the update.
      */
+    #[\Override]
     public function getPartialUpdatePercentage(): float
     {
         return $this->PartialUpdatePct;

src/Rating.php

@@ -11,7 +11,7 @@ use DNW\Skills\Numerics\GaussianDistribution;
  */
 class Rating
 {
-    private const CONSERVATIVE_STANDARD_DEVIATION_MULTIPLIER = 3;
+    private const float CONSERVATIVE_STANDARD_DEVIATION_MULTIPLIER = 3;
 
     /**
      * Constructs a rating.

src/SkillCalculator.php

@@ -11,11 +11,11 @@ use Exception;
  */
 abstract class SkillCalculator
 {
-    public const NONE = 0x00;
+    public const int NONE = 0x00;
 
-    public const PARTIAL_PLAY = 0x01;
+    public const int PARTIAL_PLAY = 0x01;
 
-    public const PARTIAL_UPDATE = 0x02;
+    public const int PARTIAL_UPDATE = 0x02;
 
     protected function __construct(
         private readonly int $supportedOptions,

src/Team.php

@@ -6,7 +6,7 @@ namespace DNW\Skills;
 
 class Team extends RatingContainer
 {
-    public function __construct(Player $player = NULL, Rating $rating = NULL)
+    public function __construct(?Player $player = NULL, ?Rating $rating = NULL)
     {
         parent::__construct();
         if (! $player instanceof Player) {

src/TrueSkill/FactorGraphTrueSkillCalculator.php

@@ -32,6 +32,7 @@ class FactorGraphTrueSkillCalculator extends SkillCalculator
     /**
      * {@inheritdoc}
      */
+    #[\Override]
     public function calculateNewRatings(
         GameInfo $gameInfo,
         array $teams,
@@ -54,6 +55,7 @@ class FactorGraphTrueSkillCalculator extends SkillCalculator
     /**
      * {@inheritdoc}
      */
+    #[\Override]
     public function calculateMatchQuality(GameInfo $gameInfo, array $teams): float
     {
         // We need to create the A matrix which is the player team assigments.

src/TrueSkill/Factors/GaussianFactor.php

@@ -14,6 +14,7 @@ abstract class GaussianFactor extends Factor
     /**
      * Sends the factor-graph message with and returns the log-normalization constant.
      */
+    #[\Override]
     protected function sendMessageVariable(Message $message, Variable $variable): float|int
     {
         $marginal = $variable->getValue();
@@ -24,6 +25,7 @@ abstract class GaussianFactor extends Factor
         return $logZ;
     }
 
+    #[\Override]
     public function createVariableToMessageBinding(Variable $variable): Message
     {
         $newDistribution = GaussianDistribution::fromPrecisionMean(0, 0);

src/TrueSkill/Factors/GaussianGreaterThanFactor.php

@@ -22,6 +22,7 @@ class GaussianGreaterThanFactor extends GaussianFactor
         $this->createVariableToMessageBinding($variable);
     }
 
+    #[\Override]
     public function getLogNormalization(): float
     {
         $vars = $this->getVariables();
@@ -42,6 +43,7 @@ class GaussianGreaterThanFactor extends GaussianFactor
         );
     }
 
+    #[\Override]
     protected function updateMessageVariable(Message $message, Variable $variable): float
     {
         $oldMarginal = clone $variable->getValue();

src/TrueSkill/Factors/GaussianLikelihoodFactor.php

@@ -28,6 +28,7 @@ class GaussianLikelihoodFactor extends GaussianFactor
         $this->createVariableToMessageBinding($variable2);
     }
 
+    #[\Override]
     public function getLogNormalization(): float
     {
         /**
@@ -73,6 +74,7 @@ class GaussianLikelihoodFactor extends GaussianFactor
         return GaussianDistribution::subtract($newMarginal, $marginal1);
     }
 
+    #[\Override]
     public function updateMessageIndex(int $messageIndex): float
     {
         $messages = $this->getMessages();

src/TrueSkill/Factors/GaussianPriorFactor.php

@@ -29,6 +29,7 @@ class GaussianPriorFactor extends GaussianFactor
         $this->createVariableToMessageBindingWithMessage($variable, $newMessage);
     }
 
+    #[\Override]
     protected function updateMessageVariable(Message $message, Variable $variable): float
     {
         $oldMarginal = clone $variable->getValue();

src/TrueSkill/Factors/GaussianWeightedSumFactor.php

@@ -127,6 +127,7 @@ class GaussianWeightedSumFactor extends GaussianFactor
         }
     }
 
+    #[\Override]
     public function getLogNormalization(): float
     {
         $vars = $this->getVariables();
@@ -197,6 +198,7 @@ class GaussianWeightedSumFactor extends GaussianFactor
         return $finalDiff;
     }
 
+    #[\Override]
     public function updateMessageIndex(int $messageIndex): float
     {
         $allMessages = $this->getMessages();

src/TrueSkill/Factors/GaussianWithinFactor.php

@@ -23,6 +23,7 @@ class GaussianWithinFactor extends GaussianFactor
         $this->createVariableToMessageBinding($variable);
     }
 
+    #[\Override]
     public function getLogNormalization(): float
     {
         /**
@@ -46,6 +47,7 @@ class GaussianWithinFactor extends GaussianFactor
         return -GaussianDistribution::logProductNormalization($messageFromVariable, $message) + log($z);
     }
 
+    #[\Override]
     protected function updateMessageVariable(Message $message, Variable $variable): float
     {
         $oldMarginal = clone $variable->getValue();

src/TrueSkill/Layers/IteratedTeamDifferencesInnerLayer.php

@@ -22,6 +22,7 @@ class IteratedTeamDifferencesInnerLayer extends TrueSkillFactorGraphLayer
         parent::__construct($parentGraph);
     }
 
+    #[\Override]
     public function getLocalFactors(): array
     {
         return array_merge(
@@ -30,6 +31,7 @@ class IteratedTeamDifferencesInnerLayer extends TrueSkillFactorGraphLayer
         );
     }
 
+    #[\Override]
     public function buildLayer(): void
     {
         $inputVariablesGroups = $this->getInputVariablesGroups();
@@ -41,6 +43,7 @@ class IteratedTeamDifferencesInnerLayer extends TrueSkillFactorGraphLayer
         $this->teamDifferencesComparisonLayer->buildLayer();
     }
 
+    #[\Override]
     public function createPriorSchedule(): ?ScheduleSequence
     {
         switch (count($this->getInputVariablesGroups())) {

src/TrueSkill/Layers/PlayerPerformancesToTeamPerformancesLayer.php

@@ -13,6 +13,7 @@ use DNW\Skills\FactorGraphs\KeyedVariable;
 
 class PlayerPerformancesToTeamPerformancesLayer extends TrueSkillFactorGraphLayer
 {
+    #[\Override]
     public function buildLayer(): void
     {
         $inputVariablesGroups = $this->getInputVariablesGroups();
@@ -32,6 +33,7 @@ class PlayerPerformancesToTeamPerformancesLayer extends TrueSkillFactorGraphLaye
         }
     }
 
+    #[\Override]
     public function createPriorSchedule(): ?ScheduleSequence
     {
         $localFactors = $this->getLocalFactors();
@@ -66,6 +68,7 @@ class PlayerPerformancesToTeamPerformancesLayer extends TrueSkillFactorGraphLaye
         );
     }
 
+    #[\Override]
     public function createPosteriorSchedule(): ?ScheduleSequence
     {
         $allFactors = [];

src/TrueSkill/Layers/PlayerPriorValuesToSkillsLayer.php

@@ -27,6 +27,7 @@ class PlayerPriorValuesToSkillsLayer extends TrueSkillFactorGraphLayer
         parent::__construct($parentGraph);
     }
 
+    #[\Override]
     public function buildLayer(): void
     {
         $teams = $this->teams;
@@ -49,6 +50,7 @@ class PlayerPriorValuesToSkillsLayer extends TrueSkillFactorGraphLayer
         }
     }
 
+    #[\Override]
     public function createPriorSchedule(): ?ScheduleSequence
     {
         $localFactors = $this->getLocalFactors();

src/TrueSkill/Layers/PlayerSkillsToPerformancesLayer.php

@@ -13,6 +13,7 @@ use DNW\Skills\FactorGraphs\ScheduleSequence;
 
 class PlayerSkillsToPerformancesLayer extends TrueSkillFactorGraphLayer
 {
+    #[\Override]
     public function buildLayer(): void
     {
         $inputVarGroups = $this->getInputVariablesGroups();
@@ -51,6 +52,7 @@ class PlayerSkillsToPerformancesLayer extends TrueSkillFactorGraphLayer
         return $this->getParentFactorGraph()->getVariableFactory()->createKeyedVariable($key);
     }
 
+    #[\Override]
     public function createPriorSchedule(): ?ScheduleSequence
     {
         $localFactors = $this->getLocalFactors();
@@ -65,6 +67,7 @@ class PlayerSkillsToPerformancesLayer extends TrueSkillFactorGraphLayer
         );
     }
 
+    #[\Override]
     public function createPosteriorSchedule(): ?ScheduleSequence
     {
         $localFactors = $this->getLocalFactors();

src/TrueSkill/Layers/TeamDifferencesComparisonLayer.php

@@ -23,6 +23,7 @@ class TeamDifferencesComparisonLayer extends TrueSkillFactorGraphLayer
         $this->epsilon = DrawMargin::getDrawMarginFromDrawProbability($gameInfo->getDrawProbability(), $gameInfo->getBeta());
     }
 
+    #[\Override]
     public function buildLayer(): void
     {
         $inputVarGroups = $this->getInputVariablesGroups();

src/TrueSkill/Layers/TeamPerformancesToTeamPerformanceDifferencesLayer.php

@@ -9,6 +9,7 @@ use DNW\Skills\TrueSkill\Factors\GaussianWeightedSumFactor;
 
 class TeamPerformancesToTeamPerformanceDifferencesLayer extends TrueSkillFactorGraphLayer
 {
+    #[\Override]
     public function buildLayer(): void
     {
         $inputVariablesGroups = $this->getInputVariablesGroups();

src/TrueSkill/TwoPlayerTrueSkillCalculator.php

@@ -31,6 +31,7 @@ class TwoPlayerTrueSkillCalculator extends SkillCalculator
     /**
      * {@inheritdoc}
      */
+    #[\Override]
     public function calculateNewRatings(
         GameInfo $gameInfo,
         array $teams,
@@ -138,6 +139,7 @@ class TwoPlayerTrueSkillCalculator extends SkillCalculator
     /**
      * {@inheritdoc}
      */
+    #[\Override]
     public function calculateMatchQuality(GameInfo $gameInfo, array $teams): float
     {
         $this->validateTeamCountAndPlayersCountPerTeam($teams);

src/TrueSkill/TwoTeamTrueSkillCalculator.php

@@ -31,6 +31,7 @@ class TwoTeamTrueSkillCalculator extends SkillCalculator
     /**
      * {@inheritdoc}
      */
+    #[\Override]
     public function calculateNewRatings(GameInfo $gameInfo, array $teams, array $teamRanks): RatingContainer
     {
         $this->validateTeamCountAndPlayersCountPerTeam($teams);
@@ -146,6 +147,7 @@ class TwoTeamTrueSkillCalculator extends SkillCalculator
     /**
      * {@inheritdoc}
      */
+    #[\Override]
     public function calculateMatchQuality(GameInfo $gameInfo, array $teams): float
     {
         $this->validateTeamCountAndPlayersCountPerTeam($teams);

tests/Numerics/GaussianDistributionTest.php

@@ -14,7 +14,7 @@ use PHPUnit\Framework\Attributes\UsesClass;
 #[UsesClass(BasicMath::class)]
 class GaussianDistributionTest extends TestCase
 {
-    private const ERROR_TOLERANCE = 0.000001;
+    private const float ERROR_TOLERANCE = 0.000001;
 
     public function testGetters(): void
     {

tests/TrueSkill/DrawMarginTest.php

@@ -16,7 +16,7 @@ use PHPUnit\Framework\Attributes\UsesClass;
 #[UsesClass(GaussianDistribution::class)]
 class DrawMarginTest extends TestCase
 {
-    private const ERROR_TOLERANCE = 0.000001;
+    private const float ERROR_TOLERANCE = 0.000001;
 
     public function testGetDrawMarginFromDrawProbability(): void
     {

tests/TrueSkill/TrueSkillCalculatorTests.php

@@ -13,9 +13,9 @@ use PHPUnit\Framework\TestCase;
 
 class TrueSkillCalculatorTests
 {
-    private const ERROR_TOLERANCE_TRUESKILL = 0.085;
+    private const float ERROR_TOLERANCE_TRUESKILL = 0.085;
 
-    private const ERROR_TOLERANCE_MATCH_QUALITY = 0.0005;
+    private const float ERROR_TOLERANCE_MATCH_QUALITY = 0.0005;
 
     // These are the roll-up ones