1 files changed, 38 insertions, 0 deletions
diff --git a/scripts/linters/src/Linters/NoModRs.php b/scripts/linters/src/Linters/NoModRs.php
new file mode 100644
index 00000000..248958e1
--- /dev/null
+++ b/scripts/linters/src/Linters/NoModRs.php
@@ -0,0 +1,38 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Shirabe\Lint\Linters;
+
+use Shirabe\Lint\Linter;
+use Shirabe\Lint\Support\FileFinder;
+use Shirabe\Lint\Support\Paths;
+
+final class NoModRs implements Linter
+{
+    public function name(): string
+    {
+        return 'no_mod_rs';
+    }
+
+    public function failureIntro(): string
+    {
+        return 'Found `mod.rs` file(s). Use `src/<submodule>.rs` instead of `<submodule>/mod.rs`:';
+    }
+
+    public function check(string $rootDir, array $excludes): array
+    {
+        $errors = [];
+
+        foreach (FileFinder::modRsFiles($rootDir) as $path) {
+            $relative = Paths::relativeTo($rootDir, $path);
+            if (in_array($relative, $excludes, true)) {
+                continue;
+            }
+
+            $errors[] = $relative;
+        }
+
+        return $errors;
+    }
+}