1: | <?php declare(strict_types = 1); |
2: | |
3: | namespace PHPStan\Type; |
4: | |
5: | use PHPStan\Type\Accessory\AccessoryArrayListType; |
6: | use PHPStan\Type\Accessory\AccessoryNonEmptyStringType; |
7: | use PHPStan\Type\Accessory\AccessoryType; |
8: | use PHPStan\Type\Accessory\HasOffsetType; |
9: | use PHPStan\Type\Accessory\HasOffsetValueType; |
10: | use PHPStan\Type\Accessory\HasPropertyType; |
11: | use PHPStan\Type\Accessory\NonEmptyArrayType; |
12: | use PHPStan\Type\Accessory\OversizedArrayType; |
13: | use PHPStan\Type\Constant\ConstantArrayType; |
14: | use PHPStan\Type\Constant\ConstantArrayTypeBuilder; |
15: | use PHPStan\Type\Constant\ConstantBooleanType; |
16: | use PHPStan\Type\Constant\ConstantFloatType; |
17: | use PHPStan\Type\Constant\ConstantIntegerType; |
18: | use PHPStan\Type\Constant\ConstantStringType; |
19: | use PHPStan\Type\Generic\GenericClassStringType; |
20: | use PHPStan\Type\Generic\TemplateBenevolentUnionType; |
21: | use PHPStan\Type\Generic\TemplateType; |
22: | use PHPStan\Type\Generic\TemplateTypeFactory; |
23: | use PHPStan\Type\Generic\TemplateUnionType; |
24: | use function array_key_exists; |
25: | use function array_key_first; |
26: | use function array_map; |
27: | use function array_merge; |
28: | use function array_slice; |
29: | use function array_splice; |
30: | use function array_values; |
31: | use function count; |
32: | use function get_class; |
33: | use function is_int; |
34: | use function md5; |
35: | use function sprintf; |
36: | use function usort; |
37: | |
38: | |
39: | class TypeCombinator |
40: | { |
41: | |
42: | public static function addNull(Type $type): Type |
43: | { |
44: | $nullType = new NullType(); |
45: | |
46: | if ($nullType->isSuperTypeOf($type)->no()) { |
47: | return self::union($type, $nullType); |
48: | } |
49: | |
50: | return $type; |
51: | } |
52: | |
53: | public static function remove(Type $fromType, Type $typeToRemove): Type |
54: | { |
55: | if ($typeToRemove instanceof UnionType) { |
56: | foreach ($typeToRemove->getTypes() as $unionTypeToRemove) { |
57: | $fromType = self::remove($fromType, $unionTypeToRemove); |
58: | } |
59: | return $fromType; |
60: | } |
61: | |
62: | $isSuperType = $typeToRemove->isSuperTypeOf($fromType); |
63: | if ($isSuperType->yes()) { |
64: | return new NeverType(); |
65: | } |
66: | if ($isSuperType->no()) { |
67: | return $fromType; |
68: | } |
69: | |
70: | if ($typeToRemove instanceof MixedType) { |
71: | $typeToRemoveSubtractedType = $typeToRemove->getSubtractedType(); |
72: | if ($typeToRemoveSubtractedType !== null) { |
73: | return self::intersect($fromType, $typeToRemoveSubtractedType); |
74: | } |
75: | } |
76: | |
77: | return $fromType->tryRemove($typeToRemove) ?? $fromType; |
78: | } |
79: | |
80: | public static function removeNull(Type $type): Type |
81: | { |
82: | if (self::containsNull($type)) { |
83: | return self::remove($type, new NullType()); |
84: | } |
85: | |
86: | return $type; |
87: | } |
88: | |
89: | public static function containsNull(Type $type): bool |
90: | { |
91: | if ($type instanceof UnionType) { |
92: | foreach ($type->getTypes() as $innerType) { |
93: | if ($innerType instanceof NullType) { |
94: | return true; |
95: | } |
96: | } |
97: | |
98: | return false; |
99: | } |
100: | |
101: | return $type instanceof NullType; |
102: | } |
103: | |
104: | public static function union(Type ...$types): Type |
105: | { |
106: | $typesCount = count($types); |
107: | if ($typesCount === 0) { |
108: | return new NeverType(); |
109: | } |
110: | |
111: | $benevolentTypes = []; |
112: | $benevolentUnionObject = null; |
113: | |
114: | for ($i = 0; $i < $typesCount; $i++) { |
115: | if ($types[$i] instanceof BenevolentUnionType) { |
116: | if ($types[$i] instanceof TemplateBenevolentUnionType && $benevolentUnionObject === null) { |
117: | $benevolentUnionObject = $types[$i]; |
118: | } |
119: | $benevolentTypesCount = 0; |
120: | $typesInner = $types[$i]->getTypes(); |
121: | foreach ($typesInner as $benevolentInnerType) { |
122: | $benevolentTypesCount++; |
123: | $benevolentTypes[$benevolentInnerType->describe(VerbosityLevel::value())] = $benevolentInnerType; |
124: | } |
125: | array_splice($types, $i, 1, $typesInner); |
126: | $typesCount += $benevolentTypesCount - 1; |
127: | continue; |
128: | } |
129: | if (!($types[$i] instanceof UnionType)) { |
130: | continue; |
131: | } |
132: | if ($types[$i] instanceof TemplateType) { |
133: | continue; |
134: | } |
135: | |
136: | $typesInner = $types[$i]->getTypes(); |
137: | array_splice($types, $i, 1, $typesInner); |
138: | $typesCount += count($typesInner) - 1; |
139: | } |
140: | |
141: | if ($typesCount === 1) { |
142: | return $types[0]; |
143: | } |
144: | |
145: | $arrayTypes = []; |
146: | $scalarTypes = []; |
147: | $hasGenericScalarTypes = []; |
148: | for ($i = 0; $i < $typesCount; $i++) { |
149: | if ($types[$i] instanceof ConstantScalarType) { |
150: | $type = $types[$i]; |
151: | $scalarTypes[get_class($type)][md5($type->describe(VerbosityLevel::cache()))] = $type; |
152: | unset($types[$i]); |
153: | continue; |
154: | } |
155: | if ($types[$i] instanceof BooleanType) { |
156: | $hasGenericScalarTypes[ConstantBooleanType::class] = true; |
157: | } |
158: | if ($types[$i] instanceof FloatType) { |
159: | $hasGenericScalarTypes[ConstantFloatType::class] = true; |
160: | } |
161: | if ($types[$i] instanceof IntegerType && !$types[$i] instanceof IntegerRangeType) { |
162: | $hasGenericScalarTypes[ConstantIntegerType::class] = true; |
163: | } |
164: | if ($types[$i] instanceof StringType && !$types[$i] instanceof ClassStringType) { |
165: | $hasGenericScalarTypes[ConstantStringType::class] = true; |
166: | } |
167: | if (!$types[$i]->isArray()->yes()) { |
168: | continue; |
169: | } |
170: | |
171: | $arrayTypes[] = $types[$i]; |
172: | unset($types[$i]); |
173: | } |
174: | |
175: | foreach ($scalarTypes as $classType => $scalarTypeItems) { |
176: | $scalarTypes[$classType] = array_values($scalarTypeItems); |
177: | } |
178: | |
179: | $types = array_values( |
180: | array_merge( |
181: | $types, |
182: | self::processArrayTypes($arrayTypes), |
183: | ), |
184: | ); |
185: | $typesCount = count($types); |
186: | |
187: | foreach ($scalarTypes as $classType => $scalarTypeItems) { |
188: | if (isset($hasGenericScalarTypes[$classType])) { |
189: | unset($scalarTypes[$classType]); |
190: | continue; |
191: | } |
192: | if ($classType === ConstantBooleanType::class && count($scalarTypeItems) === 2) { |
193: | $types[] = new BooleanType(); |
194: | $typesCount++; |
195: | unset($scalarTypes[$classType]); |
196: | continue; |
197: | } |
198: | |
199: | $scalarTypeItemsCount = count($scalarTypeItems); |
200: | for ($i = 0; $i < $typesCount; $i++) { |
201: | for ($j = 0; $j < $scalarTypeItemsCount; $j++) { |
202: | $compareResult = self::compareTypesInUnion($types[$i], $scalarTypeItems[$j]); |
203: | if ($compareResult === null) { |
204: | continue; |
205: | } |
206: | |
207: | [$a, $b] = $compareResult; |
208: | if ($a !== null) { |
209: | $types[$i] = $a; |
210: | array_splice($scalarTypeItems, $j--, 1); |
211: | $scalarTypeItemsCount--; |
212: | continue 1; |
213: | } |
214: | if ($b !== null) { |
215: | $scalarTypeItems[$j] = $b; |
216: | array_splice($types, $i--, 1); |
217: | $typesCount--; |
218: | continue 2; |
219: | } |
220: | } |
221: | } |
222: | |
223: | $scalarTypes[$classType] = $scalarTypeItems; |
224: | } |
225: | |
226: | if (count($types) > 16) { |
227: | $newTypes = []; |
228: | foreach ($types as $type) { |
229: | $newTypes[$type->describe(VerbosityLevel::cache())] = $type; |
230: | } |
231: | $types = array_values($newTypes); |
232: | $typesCount = count($types); |
233: | } |
234: | |
235: | |
236: | |
237: | for ($i = 0; $i < $typesCount; $i++) { |
238: | for ($j = $i + 1; $j < $typesCount; $j++) { |
239: | $compareResult = self::compareTypesInUnion($types[$i], $types[$j]); |
240: | if ($compareResult === null) { |
241: | continue; |
242: | } |
243: | |
244: | [$a, $b] = $compareResult; |
245: | if ($a !== null) { |
246: | $types[$i] = $a; |
247: | array_splice($types, $j--, 1); |
248: | $typesCount--; |
249: | continue 1; |
250: | } |
251: | if ($b !== null) { |
252: | $types[$j] = $b; |
253: | array_splice($types, $i--, 1); |
254: | $typesCount--; |
255: | continue 2; |
256: | } |
257: | } |
258: | } |
259: | |
260: | foreach ($scalarTypes as $scalarTypeItems) { |
261: | foreach ($scalarTypeItems as $scalarType) { |
262: | $types[] = $scalarType; |
263: | $typesCount++; |
264: | } |
265: | } |
266: | |
267: | if ($typesCount === 0) { |
268: | return new NeverType(); |
269: | } |
270: | if ($typesCount === 1) { |
271: | return $types[0]; |
272: | } |
273: | |
274: | if ($benevolentTypes !== []) { |
275: | $tempTypes = $types; |
276: | foreach ($tempTypes as $i => $type) { |
277: | if (!isset($benevolentTypes[$type->describe(VerbosityLevel::value())])) { |
278: | break; |
279: | } |
280: | |
281: | unset($tempTypes[$i]); |
282: | } |
283: | |
284: | if ($tempTypes === []) { |
285: | if ($benevolentUnionObject instanceof TemplateBenevolentUnionType) { |
286: | return $benevolentUnionObject->withTypes($types); |
287: | } |
288: | |
289: | return new BenevolentUnionType($types); |
290: | } |
291: | } |
292: | |
293: | return new UnionType($types, true); |
294: | } |
295: | |
296: | |
297: | |
298: | |
299: | private static function compareTypesInUnion(Type $a, Type $b): ?array |
300: | { |
301: | if ($a instanceof IntegerRangeType) { |
302: | $type = $a->tryUnion($b); |
303: | if ($type !== null) { |
304: | $a = $type; |
305: | return [$a, null]; |
306: | } |
307: | } |
308: | if ($b instanceof IntegerRangeType) { |
309: | $type = $b->tryUnion($a); |
310: | if ($type !== null) { |
311: | $b = $type; |
312: | return [null, $b]; |
313: | } |
314: | } |
315: | if ($a instanceof IntegerRangeType && $b instanceof IntegerRangeType) { |
316: | return null; |
317: | } |
318: | if ($a instanceof HasOffsetValueType && $b instanceof HasOffsetValueType) { |
319: | if ($a->getOffsetType()->equals($b->getOffsetType())) { |
320: | return [new HasOffsetValueType($a->getOffsetType(), self::union($a->getValueType(), $b->getValueType())), null]; |
321: | } |
322: | } |
323: | if ($a instanceof ConstantArrayType && $b instanceof ConstantArrayType) { |
324: | return null; |
325: | } |
326: | |
327: | |
328: | if ($a instanceof IterableType && $b instanceof IterableType) { |
329: | return [ |
330: | new IterableType( |
331: | self::union($a->getIterableKeyType(), $b->getIterableKeyType()), |
332: | self::union($a->getIterableValueType(), $b->getIterableValueType()), |
333: | ), |
334: | null, |
335: | ]; |
336: | } |
337: | |
338: | if ($a instanceof SubtractableType) { |
339: | $typeWithoutSubtractedTypeA = $a->getTypeWithoutSubtractedType(); |
340: | if ($typeWithoutSubtractedTypeA instanceof MixedType && $b instanceof MixedType) { |
341: | $isSuperType = $typeWithoutSubtractedTypeA->isSuperTypeOfMixed($b); |
342: | } else { |
343: | $isSuperType = $typeWithoutSubtractedTypeA->isSuperTypeOf($b); |
344: | } |
345: | if ($isSuperType->yes()) { |
346: | $a = self::intersectWithSubtractedType($a, $b); |
347: | return [$a, null]; |
348: | } |
349: | } |
350: | |
351: | if ($b instanceof SubtractableType) { |
352: | $typeWithoutSubtractedTypeB = $b->getTypeWithoutSubtractedType(); |
353: | if ($typeWithoutSubtractedTypeB instanceof MixedType && $a instanceof MixedType) { |
354: | $isSuperType = $typeWithoutSubtractedTypeB->isSuperTypeOfMixed($a); |
355: | } else { |
356: | $isSuperType = $typeWithoutSubtractedTypeB->isSuperTypeOf($a); |
357: | } |
358: | if ($isSuperType->yes()) { |
359: | $b = self::intersectWithSubtractedType($b, $a); |
360: | return [null, $b]; |
361: | } |
362: | } |
363: | |
364: | if ($b->isSuperTypeOf($a)->yes()) { |
365: | return [null, $b]; |
366: | } |
367: | |
368: | if ($a->isSuperTypeOf($b)->yes()) { |
369: | return [$a, null]; |
370: | } |
371: | |
372: | if ( |
373: | $a instanceof ConstantStringType |
374: | && $a->getValue() === '' |
375: | && ($b->describe(VerbosityLevel::value()) === 'non-empty-string' |
376: | || $b->describe(VerbosityLevel::value()) === 'non-falsy-string') |
377: | ) { |
378: | return [null, new StringType()]; |
379: | } |
380: | |
381: | if ( |
382: | $b instanceof ConstantStringType |
383: | && $b->getValue() === '' |
384: | && ($a->describe(VerbosityLevel::value()) === 'non-empty-string' |
385: | || $a->describe(VerbosityLevel::value()) === 'non-falsy-string') |
386: | ) { |
387: | return [new StringType(), null]; |
388: | } |
389: | |
390: | if ( |
391: | $a instanceof ConstantStringType |
392: | && $a->getValue() === '0' |
393: | && $b->describe(VerbosityLevel::value()) === 'non-falsy-string' |
394: | ) { |
395: | return [null, new IntersectionType([ |
396: | new StringType(), |
397: | new AccessoryNonEmptyStringType(), |
398: | ])]; |
399: | } |
400: | |
401: | if ( |
402: | $b instanceof ConstantStringType |
403: | && $b->getValue() === '0' |
404: | && $a->describe(VerbosityLevel::value()) === 'non-falsy-string' |
405: | ) { |
406: | return [new IntersectionType([ |
407: | new StringType(), |
408: | new AccessoryNonEmptyStringType(), |
409: | ]), null]; |
410: | } |
411: | |
412: | return null; |
413: | } |
414: | |
415: | private static function unionWithSubtractedType( |
416: | Type $type, |
417: | ?Type $subtractedType, |
418: | ): Type |
419: | { |
420: | if ($subtractedType === null) { |
421: | return $type; |
422: | } |
423: | |
424: | if ($type instanceof SubtractableType) { |
425: | $subtractedType = $type->getSubtractedType() === null |
426: | ? $subtractedType |
427: | : self::union($type->getSubtractedType(), $subtractedType); |
428: | if ($subtractedType instanceof NeverType) { |
429: | $subtractedType = null; |
430: | } |
431: | |
432: | return $type->changeSubtractedType($subtractedType); |
433: | } |
434: | |
435: | if ($subtractedType->isSuperTypeOf($type)->yes()) { |
436: | return new NeverType(); |
437: | } |
438: | |
439: | return self::remove($type, $subtractedType); |
440: | } |
441: | |
442: | private static function intersectWithSubtractedType( |
443: | SubtractableType $a, |
444: | Type $b, |
445: | ): Type |
446: | { |
447: | if ($a->getSubtractedType() === null) { |
448: | return $a; |
449: | } |
450: | |
451: | if ($b instanceof IntersectionType) { |
452: | $subtractableTypes = []; |
453: | foreach ($b->getTypes() as $innerType) { |
454: | if (!$innerType instanceof SubtractableType) { |
455: | continue; |
456: | } |
457: | |
458: | $subtractableTypes[] = $innerType; |
459: | } |
460: | |
461: | if (count($subtractableTypes) === 0) { |
462: | return $a->getTypeWithoutSubtractedType(); |
463: | } |
464: | |
465: | $subtractedTypes = []; |
466: | foreach ($subtractableTypes as $subtractableType) { |
467: | if ($subtractableType->getSubtractedType() === null) { |
468: | continue; |
469: | } |
470: | |
471: | $subtractedTypes[] = $subtractableType->getSubtractedType(); |
472: | } |
473: | |
474: | if (count($subtractedTypes) === 0) { |
475: | return $a->getTypeWithoutSubtractedType(); |
476: | |
477: | } |
478: | |
479: | $subtractedType = self::union(...$subtractedTypes); |
480: | } elseif ($b instanceof SubtractableType) { |
481: | $subtractedType = $b->getSubtractedType(); |
482: | if ($subtractedType === null) { |
483: | return $a->getTypeWithoutSubtractedType(); |
484: | } |
485: | } else { |
486: | $subtractedTypeTmp = self::intersect($a->getTypeWithoutSubtractedType(), $a->getSubtractedType()); |
487: | if ($b->isSuperTypeOf($subtractedTypeTmp)->yes()) { |
488: | return $a->getTypeWithoutSubtractedType(); |
489: | } |
490: | $subtractedType = new MixedType(false, $b); |
491: | } |
492: | |
493: | $subtractedType = self::intersect( |
494: | $a->getSubtractedType(), |
495: | $subtractedType, |
496: | ); |
497: | if ($subtractedType instanceof NeverType) { |
498: | $subtractedType = null; |
499: | } |
500: | |
501: | return $a->changeSubtractedType($subtractedType); |
502: | } |
503: | |
504: | |
505: | |
506: | |
507: | |
508: | private static function processArrayAccessoryTypes(array $arrayTypes): array |
509: | { |
510: | $accessoryTypes = []; |
511: | foreach ($arrayTypes as $i => $arrayType) { |
512: | if ($arrayType instanceof IntersectionType) { |
513: | foreach ($arrayType->getTypes() as $innerType) { |
514: | if ($innerType instanceof TemplateType) { |
515: | break; |
516: | } |
517: | if (!($innerType instanceof AccessoryType) && !($innerType instanceof CallableType)) { |
518: | continue; |
519: | } |
520: | if ($innerType instanceof HasOffsetValueType) { |
521: | $accessoryTypes[sprintf('hasOffsetValue(%s)', $innerType->getOffsetType()->describe(VerbosityLevel::cache()))][$i] = $innerType; |
522: | continue; |
523: | } |
524: | |
525: | $accessoryTypes[$innerType->describe(VerbosityLevel::cache())][$i] = $innerType; |
526: | } |
527: | } |
528: | |
529: | if (!$arrayType->isConstantArray()->yes()) { |
530: | continue; |
531: | } |
532: | $constantArrays = $arrayType->getConstantArrays(); |
533: | |
534: | foreach ($constantArrays as $constantArray) { |
535: | if ($constantArray->isList()->yes() && AccessoryArrayListType::isListTypeEnabled()) { |
536: | $list = new AccessoryArrayListType(); |
537: | $accessoryTypes[$list->describe(VerbosityLevel::cache())][$i] = $list; |
538: | } |
539: | |
540: | if (!$constantArray->isIterableAtLeastOnce()->yes()) { |
541: | continue; |
542: | } |
543: | |
544: | $nonEmpty = new NonEmptyArrayType(); |
545: | $accessoryTypes[$nonEmpty->describe(VerbosityLevel::cache())][$i] = $nonEmpty; |
546: | } |
547: | } |
548: | |
549: | $commonAccessoryTypes = []; |
550: | $arrayTypeCount = count($arrayTypes); |
551: | foreach ($accessoryTypes as $accessoryType) { |
552: | if (count($accessoryType) !== $arrayTypeCount) { |
553: | $firstKey = array_key_first($accessoryType); |
554: | if ($accessoryType[$firstKey] instanceof OversizedArrayType) { |
555: | $commonAccessoryTypes[] = $accessoryType[$firstKey]; |
556: | } |
557: | continue; |
558: | } |
559: | |
560: | if ($accessoryType[0] instanceof HasOffsetValueType) { |
561: | $commonAccessoryTypes[] = self::union(...$accessoryType); |
562: | continue; |
563: | } |
564: | |
565: | $commonAccessoryTypes[] = $accessoryType[0]; |
566: | } |
567: | |
568: | return $commonAccessoryTypes; |
569: | } |
570: | |
571: | |
572: | |
573: | |
574: | |
575: | private static function processArrayTypes(array $arrayTypes): array |
576: | { |
577: | if ($arrayTypes === []) { |
578: | return []; |
579: | } |
580: | |
581: | $accessoryTypes = self::processArrayAccessoryTypes($arrayTypes); |
582: | |
583: | if (count($arrayTypes) === 1) { |
584: | return [ |
585: | self::intersect(...$arrayTypes, ...$accessoryTypes), |
586: | ]; |
587: | } |
588: | |
589: | $keyTypesForGeneralArray = []; |
590: | $valueTypesForGeneralArray = []; |
591: | $generalArrayOccurred = false; |
592: | $constantKeyTypesNumbered = []; |
593: | |
594: | |
595: | $nextConstantKeyTypeIndex = 1; |
596: | |
597: | foreach ($arrayTypes as $arrayType) { |
598: | if ($generalArrayOccurred || !$arrayType->isConstantArray()->yes()) { |
599: | foreach ($arrayType->getArrays() as $type) { |
600: | $keyTypesForGeneralArray[] = $type->getKeyType(); |
601: | $valueTypesForGeneralArray[] = $type->getItemType(); |
602: | $generalArrayOccurred = true; |
603: | } |
604: | continue; |
605: | } |
606: | |
607: | $constantArrays = $arrayType->getConstantArrays(); |
608: | foreach ($constantArrays as $constantArray) { |
609: | foreach ($constantArray->getKeyTypes() as $i => $keyType) { |
610: | $keyTypesForGeneralArray[] = $keyType; |
611: | $valueTypesForGeneralArray[] = $constantArray->getValueTypes()[$i]; |
612: | |
613: | $keyTypeValue = $keyType->getValue(); |
614: | if (array_key_exists($keyTypeValue, $constantKeyTypesNumbered)) { |
615: | continue; |
616: | } |
617: | |
618: | $constantKeyTypesNumbered[$keyTypeValue] = $nextConstantKeyTypeIndex; |
619: | $nextConstantKeyTypeIndex *= 2; |
620: | if (!is_int($nextConstantKeyTypeIndex)) { |
621: | $generalArrayOccurred = true; |
622: | continue 2; |
623: | } |
624: | } |
625: | } |
626: | } |
627: | |
628: | if ($generalArrayOccurred) { |
629: | return [ |
630: | self::intersect(new ArrayType( |
631: | self::union(...$keyTypesForGeneralArray), |
632: | self::union(...self::optimizeConstantArrays($valueTypesForGeneralArray)), |
633: | ), ...$accessoryTypes), |
634: | ]; |
635: | } |
636: | |
637: | $reducedArrayTypes = self::reduceArrays($arrayTypes); |
638: | |
639: | return array_map( |
640: | static fn (Type $arrayType) => self::intersect($arrayType, ...$accessoryTypes), |
641: | self::optimizeConstantArrays($reducedArrayTypes), |
642: | ); |
643: | } |
644: | |
645: | |
646: | |
647: | |
648: | |
649: | private static function optimizeConstantArrays(array $types): array |
650: | { |
651: | $constantArrayValuesCount = self::countConstantArrayValueTypes($types); |
652: | |
653: | if ($constantArrayValuesCount > ConstantArrayTypeBuilder::ARRAY_COUNT_LIMIT) { |
654: | $results = []; |
655: | foreach ($types as $type) { |
656: | $results[] = TypeTraverser::map($type, static function (Type $type, callable $traverse): Type { |
657: | if ($type instanceof ConstantArrayType) { |
658: | if ($type->isIterableAtLeastOnce()->no()) { |
659: | return $type; |
660: | } |
661: | |
662: | $isList = true; |
663: | $valueTypes = []; |
664: | $keyTypes = []; |
665: | $nextAutoIndex = 0; |
666: | foreach ($type->getKeyTypes() as $i => $innerKeyType) { |
667: | if (!$innerKeyType instanceof ConstantIntegerType) { |
668: | $isList = false; |
669: | } elseif ($innerKeyType->getValue() !== $nextAutoIndex) { |
670: | $isList = false; |
671: | $nextAutoIndex = $innerKeyType->getValue() + 1; |
672: | } else { |
673: | $nextAutoIndex++; |
674: | } |
675: | |
676: | $generalizedKeyType = $innerKeyType->generalize(GeneralizePrecision::moreSpecific()); |
677: | $keyTypes[$generalizedKeyType->describe(VerbosityLevel::precise())] = $generalizedKeyType; |
678: | |
679: | $innerValueType = $type->getValueTypes()[$i]; |
680: | $generalizedValueType = TypeTraverser::map($innerValueType, static function (Type $type, callable $innerTraverse) use ($traverse): Type { |
681: | if ($type instanceof ArrayType) { |
682: | return TypeCombinator::intersect($type, new OversizedArrayType()); |
683: | } |
684: | |
685: | return $traverse($type); |
686: | }); |
687: | $valueTypes[$generalizedValueType->describe(VerbosityLevel::precise())] = $generalizedValueType; |
688: | } |
689: | |
690: | $keyType = TypeCombinator::union(...array_values($keyTypes)); |
691: | $valueType = TypeCombinator::union(...array_values($valueTypes)); |
692: | |
693: | $arrayType = new ArrayType($keyType, $valueType); |
694: | if ($isList) { |
695: | $arrayType = AccessoryArrayListType::intersectWith($arrayType); |
696: | } |
697: | |
698: | return TypeCombinator::intersect($arrayType, new NonEmptyArrayType(), new OversizedArrayType()); |
699: | } |
700: | |
701: | return $traverse($type); |
702: | }); |
703: | } |
704: | |
705: | return $results; |
706: | } |
707: | |
708: | return $types; |
709: | } |
710: | |
711: | |
712: | |
713: | |
714: | private static function countConstantArrayValueTypes(array $types): int |
715: | { |
716: | $constantArrayValuesCount = 0; |
717: | foreach ($types as $type) { |
718: | TypeTraverser::map($type, static function (Type $type, callable $traverse) use (&$constantArrayValuesCount): Type { |
719: | if ($type instanceof ConstantArrayType) { |
720: | $constantArrayValuesCount += count($type->getValueTypes()); |
721: | } |
722: | |
723: | return $traverse($type); |
724: | }); |
725: | } |
726: | return $constantArrayValuesCount; |
727: | } |
728: | |
729: | |
730: | |
731: | |
732: | |
733: | private static function reduceArrays(array $constantArrays): array |
734: | { |
735: | $newArrays = []; |
736: | $arraysToProcess = []; |
737: | $emptyArray = null; |
738: | foreach ($constantArrays as $constantArray) { |
739: | if (!$constantArray->isConstantArray()->yes()) { |
740: | $newArrays[] = $constantArray; |
741: | continue; |
742: | } |
743: | |
744: | if ($constantArray->isIterableAtLeastOnce()->no()) { |
745: | $emptyArray = $constantArray; |
746: | continue; |
747: | } |
748: | |
749: | $arraysToProcess = array_merge($arraysToProcess, $constantArray->getConstantArrays()); |
750: | } |
751: | |
752: | if ($emptyArray !== null) { |
753: | $newArrays[] = $emptyArray; |
754: | } |
755: | |
756: | $arraysToProcessPerKey = []; |
757: | foreach ($arraysToProcess as $i => $arrayToProcess) { |
758: | foreach ($arrayToProcess->getKeyTypes() as $keyType) { |
759: | $arraysToProcessPerKey[$keyType->getValue()][] = $i; |
760: | } |
761: | } |
762: | |
763: | $eligibleCombinations = []; |
764: | |
765: | foreach ($arraysToProcessPerKey as $arrays) { |
766: | for ($i = 0, $arraysCount = count($arrays); $i < $arraysCount - 1; $i++) { |
767: | for ($j = $i + 1; $j < $arraysCount; $j++) { |
768: | $eligibleCombinations[$arrays[$i]][$arrays[$j]] ??= 0; |
769: | $eligibleCombinations[$arrays[$i]][$arrays[$j]]++; |
770: | } |
771: | } |
772: | } |
773: | |
774: | foreach ($eligibleCombinations as $i => $other) { |
775: | if (!array_key_exists($i, $arraysToProcess)) { |
776: | continue; |
777: | } |
778: | |
779: | foreach ($other as $j => $overlappingKeysCount) { |
780: | if (!array_key_exists($j, $arraysToProcess)) { |
781: | continue; |
782: | } |
783: | |
784: | if ( |
785: | $overlappingKeysCount === count($arraysToProcess[$i]->getKeyTypes()) |
786: | && $arraysToProcess[$j]->isKeysSupersetOf($arraysToProcess[$i]) |
787: | ) { |
788: | $arraysToProcess[$j] = $arraysToProcess[$j]->mergeWith($arraysToProcess[$i]); |
789: | unset($arraysToProcess[$i]); |
790: | continue 2; |
791: | } |
792: | |
793: | if ( |
794: | $overlappingKeysCount === count($arraysToProcess[$j]->getKeyTypes()) |
795: | && $arraysToProcess[$i]->isKeysSupersetOf($arraysToProcess[$j]) |
796: | ) { |
797: | $arraysToProcess[$i] = $arraysToProcess[$i]->mergeWith($arraysToProcess[$j]); |
798: | unset($arraysToProcess[$j]); |
799: | continue 1; |
800: | } |
801: | } |
802: | } |
803: | |
804: | return array_merge($newArrays, $arraysToProcess); |
805: | } |
806: | |
807: | public static function intersect(Type ...$types): Type |
808: | { |
809: | $types = array_values($types); |
810: | |
811: | $typesCount = count($types); |
812: | if ($typesCount === 0) { |
813: | return new NeverType(); |
814: | } |
815: | if ($typesCount === 1) { |
816: | return $types[0]; |
817: | } |
818: | |
819: | $sortTypes = static function (Type $a, Type $b): int { |
820: | if (!$a instanceof UnionType || !$b instanceof UnionType) { |
821: | return 0; |
822: | } |
823: | |
824: | if ($a instanceof TemplateType) { |
825: | return -1; |
826: | } |
827: | if ($b instanceof TemplateType) { |
828: | return 1; |
829: | } |
830: | |
831: | if ($a instanceof BenevolentUnionType) { |
832: | return -1; |
833: | } |
834: | if ($b instanceof BenevolentUnionType) { |
835: | return 1; |
836: | } |
837: | |
838: | return 0; |
839: | }; |
840: | usort($types, $sortTypes); |
841: | |
842: | foreach ($types as $i => $type) { |
843: | if (!$type instanceof UnionType) { |
844: | continue; |
845: | } |
846: | |
847: | $topLevelUnionSubTypes = []; |
848: | $innerTypes = $type->getTypes(); |
849: | usort($innerTypes, $sortTypes); |
850: | $slice1 = array_slice($types, 0, $i); |
851: | $slice2 = array_slice($types, $i + 1); |
852: | foreach ($innerTypes as $innerUnionSubType) { |
853: | $topLevelUnionSubTypes[] = self::intersect( |
854: | $innerUnionSubType, |
855: | ...$slice1, |
856: | ...$slice2, |
857: | ); |
858: | } |
859: | |
860: | $union = self::union(...$topLevelUnionSubTypes); |
861: | if ($union instanceof NeverType) { |
862: | return $union; |
863: | } |
864: | |
865: | if ($type instanceof BenevolentUnionType) { |
866: | $union = TypeUtils::toBenevolentUnion($union); |
867: | } |
868: | |
869: | if ($type instanceof TemplateUnionType || $type instanceof TemplateBenevolentUnionType) { |
870: | $union = TemplateTypeFactory::create( |
871: | $type->getScope(), |
872: | $type->getName(), |
873: | $union, |
874: | $type->getVariance(), |
875: | $type->getStrategy(), |
876: | ); |
877: | } |
878: | |
879: | return $union; |
880: | } |
881: | $typesCount = count($types); |
882: | |
883: | |
884: | for ($i = 0; $i < $typesCount; $i++) { |
885: | $type = $types[$i]; |
886: | |
887: | if (!($type instanceof IntersectionType)) { |
888: | continue; |
889: | } |
890: | |
891: | array_splice($types, $i--, 1, $type->getTypes()); |
892: | $typesCount = count($types); |
893: | } |
894: | |
895: | $hasOffsetValueTypeCount = 0; |
896: | $newTypes = []; |
897: | foreach ($types as $type) { |
898: | if (!$type instanceof HasOffsetValueType) { |
899: | $newTypes[] = $type; |
900: | continue; |
901: | } |
902: | |
903: | $hasOffsetValueTypeCount++; |
904: | } |
905: | |
906: | if ($hasOffsetValueTypeCount > 32) { |
907: | $newTypes[] = new OversizedArrayType(); |
908: | $types = array_values($newTypes); |
909: | $typesCount = count($types); |
910: | } |
911: | |
912: | usort($types, static function (Type $a, Type $b): int { |
913: | |
914: | if ($a instanceof SubtractableType && $a->getSubtractedType() !== null) { |
915: | return -1; |
916: | } |
917: | if ($b instanceof SubtractableType && $b->getSubtractedType() !== null) { |
918: | return 1; |
919: | } |
920: | |
921: | if ($a instanceof ConstantArrayType && !$b instanceof ConstantArrayType) { |
922: | return -1; |
923: | } |
924: | if ($b instanceof ConstantArrayType && !$a instanceof ConstantArrayType) { |
925: | return 1; |
926: | } |
927: | |
928: | return 0; |
929: | }); |
930: | |
931: | |
932: | |
933: | |
934: | |
935: | |
936: | |
937: | |
938: | |
939: | for ($i = 0; $i < $typesCount; $i++) { |
940: | for ($j = $i + 1; $j < $typesCount; $j++) { |
941: | if ($types[$j] instanceof SubtractableType) { |
942: | $typeWithoutSubtractedTypeA = $types[$j]->getTypeWithoutSubtractedType(); |
943: | |
944: | if ($typeWithoutSubtractedTypeA instanceof MixedType && $types[$i] instanceof MixedType) { |
945: | $isSuperTypeSubtractableA = $typeWithoutSubtractedTypeA->isSuperTypeOfMixed($types[$i]); |
946: | } else { |
947: | $isSuperTypeSubtractableA = $typeWithoutSubtractedTypeA->isSuperTypeOf($types[$i]); |
948: | } |
949: | if ($isSuperTypeSubtractableA->yes()) { |
950: | $types[$i] = self::unionWithSubtractedType($types[$i], $types[$j]->getSubtractedType()); |
951: | array_splice($types, $j--, 1); |
952: | $typesCount--; |
953: | continue 1; |
954: | } |
955: | } |
956: | |
957: | if ($types[$i] instanceof SubtractableType) { |
958: | $typeWithoutSubtractedTypeB = $types[$i]->getTypeWithoutSubtractedType(); |
959: | |
960: | if ($typeWithoutSubtractedTypeB instanceof MixedType && $types[$j] instanceof MixedType) { |
961: | $isSuperTypeSubtractableB = $typeWithoutSubtractedTypeB->isSuperTypeOfMixed($types[$j]); |
962: | } else { |
963: | $isSuperTypeSubtractableB = $typeWithoutSubtractedTypeB->isSuperTypeOf($types[$j]); |
964: | } |
965: | if ($isSuperTypeSubtractableB->yes()) { |
966: | $types[$j] = self::unionWithSubtractedType($types[$j], $types[$i]->getSubtractedType()); |
967: | array_splice($types, $i--, 1); |
968: | $typesCount--; |
969: | continue 2; |
970: | } |
971: | } |
972: | |
973: | if ($types[$i] instanceof IntegerRangeType) { |
974: | $intersectionType = $types[$i]->tryIntersect($types[$j]); |
975: | if ($intersectionType !== null) { |
976: | $types[$j] = $intersectionType; |
977: | array_splice($types, $i--, 1); |
978: | $typesCount--; |
979: | continue 2; |
980: | } |
981: | } |
982: | |
983: | if ($types[$j] instanceof IterableType) { |
984: | $isSuperTypeA = $types[$j]->isSuperTypeOfMixed($types[$i]); |
985: | } else { |
986: | $isSuperTypeA = $types[$j]->isSuperTypeOf($types[$i]); |
987: | } |
988: | |
989: | if ($isSuperTypeA->yes()) { |
990: | array_splice($types, $j--, 1); |
991: | $typesCount--; |
992: | continue; |
993: | } |
994: | |
995: | if ($types[$i] instanceof IterableType) { |
996: | $isSuperTypeB = $types[$i]->isSuperTypeOfMixed($types[$j]); |
997: | } else { |
998: | $isSuperTypeB = $types[$i]->isSuperTypeOf($types[$j]); |
999: | } |
1000: | |
1001: | if ($isSuperTypeB->maybe()) { |
1002: | if ($types[$i] instanceof ConstantArrayType && $types[$j] instanceof HasOffsetType) { |
1003: | $types[$i] = $types[$i]->makeOffsetRequired($types[$j]->getOffsetType()); |
1004: | array_splice($types, $j--, 1); |
1005: | $typesCount--; |
1006: | continue; |
1007: | } |
1008: | |
1009: | if ($types[$j] instanceof ConstantArrayType && $types[$i] instanceof HasOffsetType) { |
1010: | $types[$j] = $types[$j]->makeOffsetRequired($types[$i]->getOffsetType()); |
1011: | array_splice($types, $i--, 1); |
1012: | $typesCount--; |
1013: | continue 2; |
1014: | } |
1015: | |
1016: | if ($types[$i] instanceof ConstantArrayType && $types[$j] instanceof HasOffsetValueType) { |
1017: | $offsetType = $types[$j]->getOffsetType(); |
1018: | $valueType = $types[$j]->getValueType(); |
1019: | $newValueType = self::intersect($types[$i]->getOffsetValueType($offsetType), $valueType); |
1020: | if ($newValueType instanceof NeverType) { |
1021: | return $newValueType; |
1022: | } |
1023: | $types[$i] = $types[$i]->setOffsetValueType($offsetType, $newValueType); |
1024: | array_splice($types, $j--, 1); |
1025: | $typesCount--; |
1026: | continue; |
1027: | } |
1028: | |
1029: | if ($types[$j] instanceof ConstantArrayType && $types[$i] instanceof HasOffsetValueType) { |
1030: | $offsetType = $types[$i]->getOffsetType(); |
1031: | $valueType = $types[$i]->getValueType(); |
1032: | $newValueType = self::intersect($types[$j]->getOffsetValueType($offsetType), $valueType); |
1033: | if ($newValueType instanceof NeverType) { |
1034: | return $newValueType; |
1035: | } |
1036: | |
1037: | $types[$j] = $types[$j]->setOffsetValueType($offsetType, $newValueType); |
1038: | array_splice($types, $i--, 1); |
1039: | $typesCount--; |
1040: | continue 2; |
1041: | } |
1042: | |
1043: | if ($types[$i] instanceof OversizedArrayType && $types[$j] instanceof HasOffsetValueType) { |
1044: | array_splice($types, $j--, 1); |
1045: | $typesCount--; |
1046: | continue; |
1047: | } |
1048: | |
1049: | if ($types[$j] instanceof OversizedArrayType && $types[$i] instanceof HasOffsetValueType) { |
1050: | array_splice($types, $i--, 1); |
1051: | $typesCount--; |
1052: | continue 2; |
1053: | } |
1054: | |
1055: | if ($types[$i] instanceof ObjectShapeType && $types[$j] instanceof HasPropertyType) { |
1056: | $types[$i] = $types[$i]->makePropertyRequired($types[$j]->getPropertyName()); |
1057: | array_splice($types, $j--, 1); |
1058: | $typesCount--; |
1059: | continue; |
1060: | } |
1061: | |
1062: | if ($types[$j] instanceof ObjectShapeType && $types[$i] instanceof HasPropertyType) { |
1063: | $types[$j] = $types[$j]->makePropertyRequired($types[$i]->getPropertyName()); |
1064: | array_splice($types, $i--, 1); |
1065: | $typesCount--; |
1066: | continue 2; |
1067: | } |
1068: | |
1069: | if ($types[$i] instanceof ConstantArrayType && $types[$j] instanceof ArrayType) { |
1070: | $newArray = ConstantArrayTypeBuilder::createEmpty(); |
1071: | $valueTypes = $types[$i]->getValueTypes(); |
1072: | foreach ($types[$i]->getKeyTypes() as $k => $keyType) { |
1073: | $newArray->setOffsetValueType( |
1074: | self::intersect($keyType, $types[$j]->getIterableKeyType()), |
1075: | self::intersect($valueTypes[$k], $types[$j]->getIterableValueType()), |
1076: | $types[$i]->isOptionalKey($k) && !$types[$j]->hasOffsetValueType($keyType)->yes(), |
1077: | ); |
1078: | } |
1079: | $types[$i] = $newArray->getArray(); |
1080: | array_splice($types, $j--, 1); |
1081: | $typesCount--; |
1082: | continue 2; |
1083: | } |
1084: | |
1085: | if ($types[$j] instanceof ConstantArrayType && $types[$i] instanceof ArrayType) { |
1086: | $newArray = ConstantArrayTypeBuilder::createEmpty(); |
1087: | $valueTypes = $types[$j]->getValueTypes(); |
1088: | foreach ($types[$j]->getKeyTypes() as $k => $keyType) { |
1089: | $newArray->setOffsetValueType( |
1090: | self::intersect($keyType, $types[$i]->getIterableKeyType()), |
1091: | self::intersect($valueTypes[$k], $types[$i]->getIterableValueType()), |
1092: | $types[$j]->isOptionalKey($k) && !$types[$i]->hasOffsetValueType($keyType)->yes(), |
1093: | ); |
1094: | } |
1095: | $types[$j] = $newArray->getArray(); |
1096: | array_splice($types, $i--, 1); |
1097: | $typesCount--; |
1098: | continue 2; |
1099: | } |
1100: | |
1101: | if ( |
1102: | ($types[$i] instanceof ArrayType || $types[$i] instanceof IterableType) && |
1103: | ($types[$j] instanceof ArrayType || $types[$j] instanceof IterableType) |
1104: | ) { |
1105: | $keyType = self::intersect($types[$i]->getKeyType(), $types[$j]->getKeyType()); |
1106: | $itemType = self::intersect($types[$i]->getItemType(), $types[$j]->getItemType()); |
1107: | if ($types[$i] instanceof IterableType && $types[$j] instanceof IterableType) { |
1108: | $types[$j] = new IterableType($keyType, $itemType); |
1109: | } else { |
1110: | $types[$j] = new ArrayType($keyType, $itemType); |
1111: | } |
1112: | array_splice($types, $i--, 1); |
1113: | $typesCount--; |
1114: | continue 2; |
1115: | } |
1116: | |
1117: | if ($types[$i] instanceof GenericClassStringType && $types[$j] instanceof GenericClassStringType) { |
1118: | $genericType = self::intersect($types[$i]->getGenericType(), $types[$j]->getGenericType()); |
1119: | $types[$i] = new GenericClassStringType($genericType); |
1120: | array_splice($types, $j--, 1); |
1121: | $typesCount--; |
1122: | continue; |
1123: | } |
1124: | |
1125: | if ( |
1126: | $types[$i] instanceof ArrayType |
1127: | && get_class($types[$i]) === ArrayType::class |
1128: | && $types[$j] instanceof AccessoryArrayListType |
1129: | && !$types[$j]->getIterableKeyType()->isSuperTypeOf($types[$i]->getIterableKeyType())->yes() |
1130: | ) { |
1131: | $keyType = self::intersect($types[$i]->getIterableKeyType(), $types[$j]->getIterableKeyType()); |
1132: | if ($keyType instanceof NeverType) { |
1133: | return $keyType; |
1134: | } |
1135: | $types[$i] = new ArrayType($keyType, $types[$i]->getItemType()); |
1136: | continue; |
1137: | } |
1138: | |
1139: | continue; |
1140: | } |
1141: | |
1142: | if ($isSuperTypeB->yes()) { |
1143: | array_splice($types, $i--, 1); |
1144: | $typesCount--; |
1145: | continue 2; |
1146: | } |
1147: | |
1148: | if ($isSuperTypeA->no()) { |
1149: | return new NeverType(); |
1150: | } |
1151: | } |
1152: | } |
1153: | |
1154: | if ($typesCount === 1) { |
1155: | return $types[0]; |
1156: | } |
1157: | |
1158: | return new IntersectionType($types); |
1159: | } |
1160: | |
1161: | public static function removeFalsey(Type $type): Type |
1162: | { |
1163: | return self::remove($type, StaticTypeFactory::falsey()); |
1164: | } |
1165: | |
1166: | } |
1167: | |