@@ -59,7 +59,6 @@ discard block |
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59 | 59 | /** |
60 | 60 | * Add a new node in the specified index. |
61 | 61 | * |
62 | - * @param integer $index the position. |
|
63 | 62 | * @param mixed $data the data to be stored. |
64 | 63 | */ |
65 | 64 | protected function insertEnd($data) { |
@@ -93,7 +92,7 @@ discard block |
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93 | 92 | /** |
94 | 93 | * Returns the last node with O(1). |
95 | 94 | * |
96 | - * @return mixed null if the list is empty. |
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95 | + * @return null|SinglyLinkedListNode null if the list is empty. |
|
97 | 96 | */ |
98 | 97 | protected function searchLast() { |
99 | 98 | if($this->head === null) { |
@@ -243,7 +242,7 @@ discard block |
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243 | 242 | /** |
244 | 243 | * Generator for retrieve all nodes stored. |
245 | 244 | * |
246 | - * @return null if the head is null (or list is empty) |
|
245 | + * @return \Generator if the head is null (or list is empty) |
|
247 | 246 | */ |
248 | 247 | public function getAll() { |
249 | 248 | if($this->head === null) { |