Narrow types

Author: sebastianbergmann

src/Chunk.php

@@ -22,8 +22,15 @@ final class Chunk implements IteratorAggregate
     private int $startRange;
     private int $end;
     private int $endRange;
+
+    /**
+     * @var list<Line>
+     */
     private array $lines;
 
+    /**
+     * @param list<Line> $lines
+     */
     public function __construct(int $start = 0, int $startRange = 1, int $end = 0, int $endRange = 1, array $lines = [])
     {
         $this->start      = $start;

src/Differ.php

@@ -42,13 +42,21 @@ public function __construct(DiffOutputBuilderInterface $outputBuilder)
         $this->outputBuilder = $outputBuilder;
     }
 
+    /**
+     * @param list<string>|string $from
+     * @param list<string>|string $to
+     */
     public function diff(array|string $from, array|string $to, ?LongestCommonSubsequenceCalculator $lcs = null): string
     {
         $diff = $this->diffToArray($from, $to, $lcs);
 
         return $this->outputBuilder->getDiff($diff);
     }
 
+    /**
+     * @param list<string>|string $from
+     * @param list<string>|string $to
+     */
     public function diffToArray(array|string $from, array|string $to, ?LongestCommonSubsequenceCalculator $lcs = null): array
     {
         if (is_string($from)) {

src/Exception/ConfigurationException.php

@@ -16,13 +16,8 @@
 
 final class ConfigurationException extends InvalidArgumentException
 {
-    public function __construct(
-        string $option,
-        string $expected,
-        $value,
-        int $code = 0,
-        ?Exception $previous = null
-    ) {
+    public function __construct(string $option, string $expected, mixed $value, int $code = 0, ?Exception $previous = null)
+    {
         parent::__construct(
             sprintf(
                 'Option "%s" must be %s, got "%s".',