wip

src/Plugins/Tia/BaselineSync.php

@@ -39,7 +39,7 @@ use Symfony\Component\Process\Process;
  *
  * @internal
  */
-final class BaselineSync
+final readonly class BaselineSync
 {
     /**
      * Conventional workflow filename teams publish from. Not configurable
@@ -63,8 +63,8 @@ final class BaselineSync
     private const string COVERAGE_ASSET = Tia::KEY_COVERAGE_CACHE;
 
     public function __construct(
-        private readonly State $state,
-        private readonly OutputInterface $output,
+        private State $state,
+        private OutputInterface $output,
     ) {}
 
     /**

src/Plugins/Tia/ChangedFiles.php

@@ -38,7 +38,7 @@ final readonly class ChangedFiles
      * that git still reports as modified but whose content is bit-identical
      * to the previous TIA invocation.
      *
-     * @param  array<int, string>  $files          project-relative paths.
+     * @param  array<int, string>  $files  project-relative paths.
      * @param  array<string, string>  $lastRunTree  path → content hash from last run.
      * @return array<int, string>
      */
@@ -101,7 +101,7 @@ final readonly class ChangedFiles
      * detect which files are actually different.
      *
      * @param  array<int, string>  $files
-     * @return array<string, string>  path → xxh128 content hash
+     * @return array<string, string> path → xxh128 content hash
      */
     public function snapshotTree(array $files): array
     {

src/Plugins/Tia/CoverageMerger.php

@@ -46,7 +46,7 @@ final class CoverageMerger
     {
         $state = self::state();
 
-        if ($state === null || ! $state->exists(Tia::KEY_COVERAGE_MARKER)) {
+        if (! $state instanceof State || ! $state->exists(Tia::KEY_COVERAGE_MARKER)) {
             return;
         }
 
@@ -60,7 +60,7 @@ final class CoverageMerger
             // verbatim (as serialised bytes) for next time.
             $current = self::requireCoverage($reportPath);
 
-            if ($current !== null) {
+            if ($current instanceof CodeCoverage) {
                 $state->write(Tia::KEY_COVERAGE_CACHE, serialize($current));
             }
 
@@ -70,7 +70,7 @@ final class CoverageMerger
         $cached = self::unserializeCoverage($cachedBytes);
         $current = self::requireCoverage($reportPath);
 
-        if ($cached === null || $current === null) {
+        if (! $cached instanceof CodeCoverage || ! $current instanceof CodeCoverage) {
             return;
         }
 
@@ -84,7 +84,7 @@ final class CoverageMerger
         // can `require` it, and to the state cache for the next run.
         @file_put_contents(
             $reportPath,
-            "<?php return unserialize(".var_export($serialised, true).");\n",
+            '<?php return unserialize('.var_export($serialised, true).");\n",
         );
         $state->write(Tia::KEY_COVERAGE_CACHE, $serialised);
     }
@@ -108,10 +108,12 @@ final class CoverageMerger
 
         foreach ($lineCoverage as $file => $lines) {
             foreach ($lines as $line => $ids) {
-                if ($ids === null || $ids === []) {
+                if ($ids === null) {
+                    continue;
+                }
+                if ($ids === []) {
                     continue;
                 }
-
                 $filtered = array_values(array_diff($ids, $currentIds));
 
                 if ($filtered !== $ids) {
@@ -175,7 +177,6 @@ final class CoverageMerger
     private static function unserializeCoverage(string $bytes): ?CodeCoverage
     {
         try {
-            /** @var mixed $value */
             $value = @unserialize($bytes);
         } catch (Throwable) {
             return null;

src/Plugins/Tia/FileState.php

@@ -17,14 +17,14 @@ use Pest\Plugins\Tia\Contracts\State;
  *
  * @internal
  */
-final class FileState implements State
+final readonly class FileState implements State
 {
     /**
      * Configured root. May not exist on disk yet; resolved + created on
      * the first write. Keeping the raw string lets the instance be built
      * before Pest's temp dir has been materialised.
      */
-    private readonly string $rootDir;
+    private string $rootDir;
 
     public function __construct(string $rootDir)
     {