Use arrow functions

Author: sebastianbergmann

src/Framework/Constraint/Operator/BinaryOperator.php

@@ -25,10 +25,7 @@ abstract class BinaryOperator extends Operator
     protected function __construct(mixed ...$constraints)
     {
         $this->constraints = array_map(
-            function ($constraint): Constraint
-            {
-                return $this->checkConstraint($constraint);
-            },
+            fn ($constraint): Constraint => $this->checkConstraint($constraint),
             $constraints
         );
     }

src/Framework/Constraint/Operator/LogicalNot.php

@@ -51,10 +51,10 @@ public static function negate(string $string): string
 
         preg_match('/(\'[\w\W]*\')([\w\W]*)("[\w\W]*")/i', $string, $matches);
 
-        $positives = array_map(static function (string $s)
-        {
-            return '/\\b' . preg_quote($s, '/') . '/';
-        }, $positives);
+        $positives = array_map(
+            static fn (string $s) => '/\\b' . preg_quote($s, '/') . '/',
+            $positives
+        );
 
         if (count($matches) > 0) {
             $nonInput = $matches[2];

src/Framework/Constraint/Operator/LogicalXor.php

@@ -59,10 +59,7 @@ public function matches(mixed $other): bool
 
         return array_reduce(
             $constraints,
-            static function (bool $matches, Constraint $constraint) use ($other): bool
-            {
-                return $matches xor $constraint->evaluate($other, '', true);
-            },
+            static fn (bool $matches, Constraint $constraint): bool => $matches xor $constraint->evaluate($other, '', true),
             $initial->evaluate($other, '', true)
         );
     }

src/Framework/ExecutionOrderDependency.php

@@ -69,10 +69,7 @@ public static function filterInvalid(array $dependencies): array
         return array_values(
             array_filter(
                 $dependencies,
-                static function (self $d)
-                {
-                    return $d->isValid();
-                }
+                static fn (self $d) => $d->isValid()
             )
         );
     }
@@ -86,10 +83,7 @@ static function (self $d)
     public static function mergeUnique(array $existing, array $additional): array
     {
         $existingTargets = array_map(
-            static function ($dependency)
-            {
-                return $dependency->getTarget();
-            },
+            static fn ($dependency) => $dependency->getTarget(),
             $existing
         );
 
@@ -123,10 +117,7 @@ public static function diff(array $left, array $right): array
 
         $diff         = [];
         $rightTargets = array_map(
-            static function ($dependency)
-            {
-                return $dependency->getTarget();
-            },
+            static fn ($dependency) => $dependency->getTarget(),
             $right
         );
 

src/Framework/MockObject/Builder/InvocationMocker.php

@@ -210,10 +210,7 @@ public function method(Constraint|string $constraint): self
 
         if (is_string($constraint)) {
             $this->configurableMethodNames ??= array_flip(array_map(
-                static function (ConfigurableMethod $configurable)
-                {
-                    return strtolower($configurable->name());
-                },
+                static fn (ConfigurableMethod $configurable) => strtolower($configurable->name()),
                 $this->configurableMethods
             ));
 

src/Logging/TestDox/NamePrettifier.php

@@ -182,13 +182,10 @@ public function prettifyTestCase(TestCase $test, bool $colorize): string
                 $providedData = $this->mapTestMethodParameterNamesToProvidedDataValues($test, $colorize);
 
                 $variables = array_map(
-                    static function (string $variable): string
-                    {
-                        return sprintf(
-                            '/%s(?=\b)/',
-                            preg_quote($variable, '/')
-                        );
-                    },
+                    static fn (string $variable): string => sprintf(
+                        '/%s(?=\b)/',
+                        preg_quote($variable, '/')
+                    ),
                     array_keys($providedData)
                 );
 
@@ -270,10 +267,7 @@ private function mapTestMethodParameterNamesToProvidedDataValues(TestCase $test,
         }
 
         if ($colorize) {
-            $providedData = array_map(static function ($value)
-            {
-                return Color::colorize('fg-cyan', Color::visualizeWhitespace((string) $value, true));
-            }, $providedData);
+            $providedData = array_map(static fn ($value) => Color::colorize('fg-cyan', Color::visualizeWhitespace((string) $value, true)), $providedData);
         }
 
         return $providedData;