php-ds /
polyfill
| @@ 281-291 (lines=11) @@ | ||
| 278 | /** |
|
| 279 | * @inheritDoc |
|
| 280 | */ |
|
| 281 | public function shift() |
|
| 282 | { |
|
| 283 | if ($this->isEmpty()) { |
|
| 284 | throw new UnderflowException(); |
|
| 285 | } |
|
| 286 | ||
| 287 | $value = array_shift($this->internal); |
|
| 288 | $this->adjustCapacity(); |
|
| 289 | ||
| 290 | return $value; |
|
| 291 | } |
|
| 292 | ||
| 293 | /** |
|
| 294 | * @inheritDoc |
|
| @@ 163-173 (lines=11) @@ | ||
| 160 | /** |
|
| 161 | * @inheritDoc |
|
| 162 | */ |
|
| 163 | public function pop() |
|
| 164 | { |
|
| 165 | if ($this->isEmpty()) { |
|
| 166 | throw new UnderflowException(); |
|
| 167 | } |
|
| 168 | ||
| 169 | $value = array_pop($this->internal); |
|
| 170 | $this->adjustCapacity(); |
|
| 171 | ||
| 172 | return $value; |
|
| 173 | } |
|
| 174 | ||
| 175 | /** |
|
| 176 | * @inheritDoc |
|
