Innmind /
Immutable
| @@ 279-309 (lines=31) @@ | ||
| 276 | /** |
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| 277 | * {@inheritdoc} |
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| 278 | */ |
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| 279 | public function groupBy(\Closure $discriminator): MapInterface |
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| 280 | { |
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| 281 | if ($this->size() === 0) { |
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| 282 | throw new GroupEmptyMapException; |
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| 283 | } |
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| 284 | ||
| 285 | $map = null; |
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| 286 | ||
| 287 | foreach ($this->pairs as $pair) { |
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| 288 | $key = $discriminator($pair->key(), $pair->value()); |
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| 289 | ||
| 290 | if ($map === null) { |
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| 291 | $type = gettype($key); |
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| 292 | $map = new self( |
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| 293 | $type === 'object' ? get_class($key) : $type, |
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| 294 | SequenceInterface::class |
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| 295 | ); |
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| 296 | } |
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| 297 | ||
| 298 | if ($map->contains($key)) { |
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| 299 | $map = $map->put( |
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| 300 | $key, |
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| 301 | $map->get($key)->add($pair) |
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| 302 | ); |
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| 303 | } else { |
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| 304 | $map = $map->put($key, new Sequence($pair)); |
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| 305 | } |
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| 306 | } |
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| 307 | ||
| 308 | return $map; |
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| 309 | } |
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| 310 | ||
| 311 | /** |
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| 312 | * {@inheritdoc} |
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| @@ 213-243 (lines=31) @@ | ||
| 210 | /** |
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| 211 | * {@inheritdoc} |
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| 212 | */ |
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| 213 | public function groupBy(\Closure $discriminator): MapInterface |
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| 214 | { |
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| 215 | if ($this->size() === 0) { |
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| 216 | throw new GroupEmptySequenceException; |
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| 217 | } |
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| 218 | ||
| 219 | $map = null; |
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| 220 | ||
| 221 | foreach ($this->values as $value) { |
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| 222 | $key = $discriminator($value); |
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| 223 | ||
| 224 | if ($map === null) { |
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| 225 | $type = gettype($key); |
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| 226 | $map = new Map( |
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| 227 | $type === 'object' ? get_class($key) : $type, |
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| 228 | SequenceInterface::class |
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| 229 | ); |
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| 230 | } |
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| 231 | ||
| 232 | if ($map->contains($key)) { |
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| 233 | $map = $map->put( |
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| 234 | $key, |
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| 235 | $map->get($key)->add($value) |
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| 236 | ); |
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| 237 | } else { |
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| 238 | $map = $map->put($key, new self($value)); |
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| 239 | } |
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| 240 | } |
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| 241 | ||
| 242 | return $map; |
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| 243 | } |
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| 244 | ||
| 245 | /** |
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| 246 | * {@inheritdoc} |
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