Document assumption that we have a Directory object

sebastianbergmann · Dec 8, 2024 · 6a889d8 · 6a889d8
1 parent 199654a
commit 6a889d8
Showing 1 changed file with 3 additions and 0 deletions.
diff --git a/src/Node/Iterator.php b/src/Node/Iterator.php
@@ -9,6 +9,7 @@
  */
 namespace SebastianBergmann\CodeCoverage\Node;
 
+use function assert;
 use function count;
 use RecursiveIterator;
 
@@ -74,6 +75,8 @@ public function next(): void
      */
     public function getChildren(): self
     {
+        assert($this->nodes[$this->position] instanceof Directory);
+
         return new self($this->nodes[$this->position]);
     }