File src/Reflection/InitializerExprTypeResolver.php

1:	<?php declare(strict_types = 1);
2:
3:	namespace PHPStan\Reflection;
4:
5:	use Closure;
6:	use Nette\Utils\Strings;
7:	use PhpParser\Node\Arg;
8:	use PhpParser\Node\ComplexType;
9:	use PhpParser\Node\Expr;
10:	use PhpParser\Node\Expr\BinaryOp;
11:	use PhpParser\Node\Expr\Cast\Array_;
12:	use PhpParser\Node\Expr\Cast\Bool_;
13:	use PhpParser\Node\Expr\Cast\Double;
14:	use PhpParser\Node\Expr\Cast\Object_;
15:	use PhpParser\Node\Expr\ClassConstFetch;
16:	use PhpParser\Node\Expr\ConstFetch;
17:	use PhpParser\Node\Expr\FuncCall;
18:	use PhpParser\Node\Expr\New_;
19:	use PhpParser\Node\Expr\PropertyFetch;
20:	use PhpParser\Node\Expr\Variable;
21:	use PhpParser\Node\Identifier;
22:	use PhpParser\Node\Name;
23:	use PhpParser\Node\Param;
24:	use PhpParser\Node\Scalar\Float_;
25:	use PhpParser\Node\Scalar\Int_;
26:	use PhpParser\Node\Scalar\MagicConst;
27:	use PhpParser\Node\Scalar\MagicConst\Dir;
28:	use PhpParser\Node\Scalar\MagicConst\File;
29:	use PhpParser\Node\Scalar\MagicConst\Line;
30:	use PhpParser\Node\Scalar\String_;
31:	use PHPStan\Analyser\ConstantResolver;
32:	use PHPStan\Analyser\OutOfClassScope;
33:	use PHPStan\DependencyInjection\AutowiredParameter;
34:	use PHPStan\DependencyInjection\AutowiredService;
35:	use PHPStan\Node\Expr\TypeExpr;
36:	use PHPStan\Php\PhpVersion;
37:	use PHPStan\PhpDoc\Tag\TemplateTag;
38:	use PHPStan\Reflection\Callables\CallableParametersAcceptor;
39:	use PHPStan\Reflection\Callables\SimpleImpurePoint;
40:	use PHPStan\Reflection\Callables\SimpleThrowPoint;
41:	use PHPStan\Reflection\Native\NativeParameterReflection;
42:	use PHPStan\Reflection\ReflectionProvider\ReflectionProviderProvider;
43:	use PHPStan\ShouldNotHappenException;
44:	use PHPStan\TrinaryLogic;
45:	use PHPStan\Type\Accessory\AccessoryArrayListType;
46:	use PHPStan\Type\Accessory\AccessoryLiteralStringType;
47:	use PHPStan\Type\Accessory\AccessoryLowercaseStringType;
48:	use PHPStan\Type\Accessory\AccessoryNonEmptyStringType;
49:	use PHPStan\Type\Accessory\AccessoryNonFalsyStringType;
50:	use PHPStan\Type\Accessory\AccessoryNumericStringType;
51:	use PHPStan\Type\Accessory\AccessoryUppercaseStringType;
52:	use PHPStan\Type\Accessory\HasOffsetValueType;
53:	use PHPStan\Type\Accessory\NonEmptyArrayType;
54:	use PHPStan\Type\ArrayType;
55:	use PHPStan\Type\BenevolentUnionType;
56:	use PHPStan\Type\BooleanType;
57:	use PHPStan\Type\CallableAssertionsHelper;
58:	use PHPStan\Type\ClassStringType;
59:	use PHPStan\Type\ClosureType;
60:	use PHPStan\Type\Constant\ConstantArrayType;
61:	use PHPStan\Type\Constant\ConstantArrayTypeBuilder;
62:	use PHPStan\Type\Constant\ConstantBooleanType;
63:	use PHPStan\Type\Constant\ConstantFloatType;
64:	use PHPStan\Type\Constant\ConstantIntegerType;
65:	use PHPStan\Type\Constant\ConstantStringType;
66:	use PHPStan\Type\Constant\OversizedArrayBuilder;
67:	use PHPStan\Type\ConstantScalarType;
68:	use PHPStan\Type\ConstantTypeHelper;
69:	use PHPStan\Type\Enum\EnumCaseObjectType;
70:	use PHPStan\Type\ErrorType;
71:	use PHPStan\Type\FloatType;
72:	use PHPStan\Type\GeneralizePrecision;
73:	use PHPStan\Type\Generic\GenericClassStringType;
74:	use PHPStan\Type\Generic\TemplateType;
75:	use PHPStan\Type\Generic\TemplateTypeMap;
76:	use PHPStan\Type\Generic\TemplateTypeVarianceMap;
77:	use PHPStan\Type\IntegerRangeType;
78:	use PHPStan\Type\IntegerType;
79:	use PHPStan\Type\IntersectionType;
80:	use PHPStan\Type\MixedType;
81:	use PHPStan\Type\NeverType;
82:	use PHPStan\Type\NonexistentParentClassType;
83:	use PHPStan\Type\NullType;
84:	use PHPStan\Type\ObjectShapeType;
85:	use PHPStan\Type\ObjectType;
86:	use PHPStan\Type\ObjectWithoutClassType;
87:	use PHPStan\Type\OperatorTypeSpecifyingExtensionRegistry;
88:	use PHPStan\Type\ParserNodeTypeToPHPStanType;
89:	use PHPStan\Type\StaticType;
90:	use PHPStan\Type\StringType;
91:	use PHPStan\Type\ThisType;
92:	use PHPStan\Type\Type;
93:	use PHPStan\Type\TypeCombinator;
94:	use PHPStan\Type\TypehintHelper;
95:	use PHPStan\Type\TypeResult;
96:	use PHPStan\Type\TypeUtils;
97:	use PHPStan\Type\TypeWithClassName;
98:	use PHPStan\Type\UnaryOperatorTypeSpecifyingExtensionRegistry;
99:	use PHPStan\Type\UnionType;
100:	use stdClass;
101:	use Throwable;
102:	use function array_key_exists;
103:	use function array_keys;
104:	use function array_map;
105:	use function array_merge;
106:	use function array_values;
107:	use function assert;
108:	use function ceil;
109:	use function count;
110:	use function dirname;
111:	use function floor;
112:	use function in_array;
113:	use function intval;
114:	use function is_finite;
115:	use function is_float;
116:	use function is_int;
117:	use function is_numeric;
118:	use function is_string;
119:	use function max;
120:	use function min;
121:	use function sprintf;
122:	use function str_starts_with;
123:	use function strtolower;
124:	use const INF;
125:
126:	#[AutowiredService]
127:	final class InitializerExprTypeResolver
128:	{
129:
130:	public const CALCULATE_SCALARS_LIMIT = 128;
131:
132:	/** @var array<string, true> */
133:	private array $currentlyResolvingClassConstant = [];
134:
135:	/** @var array<string, Type> */
136:	private array $classConstantValueTypeCache = [];
137:
138:	public function __construct(
139:	private ConstantResolver $constantResolver,
140:	private ReflectionProviderProvider $reflectionProviderProvider,
141:	private PhpVersion $phpVersion,
142:	private OperatorTypeSpecifyingExtensionRegistry $operatorTypeSpecifyingExtensionRegistry,
143:	private UnaryOperatorTypeSpecifyingExtensionRegistry $unaryOperatorTypeSpecifyingExtensionRegistry,
144:	private OversizedArrayBuilder $oversizedArrayBuilder,
145:	#[AutowiredParameter]
146:	private bool $usePathConstantsAsConstantString,
147:	)
148:	{
149:	}
150:
151:	/** @api */
152:	public function getType(Expr $expr, InitializerExprContext $context): Type
153:	{
154:	if ($expr instanceof TypeExpr) {
155:	return $expr->getExprType();
156:	}
157:	if ($expr instanceof Int_) {
158:	return new ConstantIntegerType($expr->value);
159:	}
160:	if ($expr instanceof Float_) {
161:	return new ConstantFloatType($expr->value);
162:	}
163:	if ($expr instanceof String_) {
164:	return new ConstantStringType($expr->value);
165:	}
166:	if ($expr instanceof ConstFetch) {
167:	$constName = (string) $expr->name;
168:	$loweredConstName = strtolower($constName);
169:	if ($loweredConstName === 'true') {
170:	return new ConstantBooleanType(true);
171:	} elseif ($loweredConstName === 'false') {
172:	return new ConstantBooleanType(false);
173:	} elseif ($loweredConstName === 'null') {
174:	return new NullType();
175:	}
176:
177:	$constant = $this->constantResolver->resolveConstant($expr->name, $context);
178:	if ($constant !== null) {
179:	return $constant;
180:	}
181:
182:	return new ErrorType();
183:	}
184:	if ($expr instanceof File) {
185:	$file = $context->getFile();
186:	if ($file === null) {
187:	return new StringType();
188:	}
189:	$stringType = new ConstantStringType($file);
190:	return $this->usePathConstantsAsConstantString ? $stringType : $stringType->generalize(GeneralizePrecision::moreSpecific());
191:	}
192:	if ($expr instanceof Dir) {
193:	$file = $context->getFile();
194:	if ($file === null) {
195:	return new StringType();
196:	}
197:	$stringType = new ConstantStringType(dirname($file));
198:	return $this->usePathConstantsAsConstantString ? $stringType : $stringType->generalize(GeneralizePrecision::moreSpecific());
199:	}
200:	if ($expr instanceof Line) {
201:	return new ConstantIntegerType($expr->getStartLine());
202:	}
203:	if ($expr instanceof Expr\New_) {
204:	if ($expr->class instanceof Name) {
205:	return new ObjectType((string) $expr->class);
206:	}
207:
208:	return new ObjectWithoutClassType();
209:	}
210:	if ($expr instanceof Expr\Array_) {
211:	return $this->getArrayType($expr, fn (Expr $expr): Type => $this->getType($expr, $context));
212:	}
213:	if ($expr instanceof Expr\Cast) {
214:	return $this->getCastType($expr, fn (Expr $expr): Type => $this->getType($expr, $context));
215:	}
216:	if ($expr instanceof Expr\CallLike && $expr->isFirstClassCallable()) {
217:	return $this->getFirstClassCallableType($expr, $context, false);
218:	}
219:	if ($expr instanceof Expr\Closure && $expr->static) {
220:	$parameters = [];
221:	$isVariadic = false;
222:	$firstOptionalParameterIndex = null;
223:	foreach ($expr->params as $i => $param) {
224:	$isOptionalCandidate = $param->default !== null \|\| $param->variadic;
225:
226:	if ($isOptionalCandidate) {
227:	if ($firstOptionalParameterIndex === null) {
228:	$firstOptionalParameterIndex = $i;
229:	}
230:	} else {
231:	$firstOptionalParameterIndex = null;
232:	}
233:	}
234:
235:	foreach ($expr->params as $i => $param) {
236:	if ($param->variadic) {
237:	$isVariadic = true;
238:	}
239:	if (!$param->var instanceof Variable \|\| !is_string($param->var->name)) {
240:	throw new ShouldNotHappenException();
241:	}
242:	$parameters[] = new NativeParameterReflection(
243:	$param->var->name,
244:	$firstOptionalParameterIndex !== null && $i >= $firstOptionalParameterIndex,
245:	$this->getFunctionType($param->type, $this->isParameterValueNullable($param), false, $context),
246:	$param->byRef
247:	? PassedByReference::createCreatesNewVariable()
248:	: PassedByReference::createNo(),
249:	$param->variadic,
250:	$param->default !== null ? $this->getType($param->default, $context) : null,
251:	);
252:	}
253:
254:	$returnType = new MixedType(false);
255:	if ($expr->returnType !== null) {
256:	$returnType = $this->getFunctionType($expr->returnType, false, false, $context);
257:	}
258:
259:	return new ClosureType(
260:	$parameters,
261:	$returnType,
262:	$isVariadic,
263:	TemplateTypeMap::createEmpty(),
264:	TemplateTypeMap::createEmpty(),
265:	TemplateTypeVarianceMap::createEmpty(),
266:	acceptsNamedArguments: TrinaryLogic::createYes(),
267:	isStatic: TrinaryLogic::createYes(),
268:	);
269:	}
270:	if ($expr instanceof Expr\ArrayDimFetch && $expr->dim !== null) {
271:	$var = $this->getType($expr->var, $context);
272:	$dim = $this->getType($expr->dim, $context);
273:	return $var->getOffsetValueType($dim);
274:	}
275:	if ($expr instanceof ClassConstFetch && $expr->name instanceof Identifier) {
276:	return $this->getClassConstFetchType($expr->class, $expr->name->toString(), $context->getClassName(), fn (Expr $expr): Type => $this->getType($expr, $context));
277:	}
278:	if ($expr instanceof Expr\UnaryPlus) {
279:	return $this->getUnaryPlusType($expr->expr, fn (Expr $expr): Type => $this->getType($expr, $context));
280:	}
281:	if ($expr instanceof Expr\UnaryMinus) {
282:	return $this->getUnaryMinusType($expr->expr, fn (Expr $expr): Type => $this->getType($expr, $context));
283:	}
284:	if ($expr instanceof Expr\BinaryOp\Coalesce) {
285:	$leftType = $this->getType($expr->left, $context);
286:	$rightType = $this->getType($expr->right, $context);
287:
288:	return TypeCombinator::union(TypeCombinator::removeNull($leftType), $rightType);
289:	}
290:
291:	if ($expr instanceof Expr\Ternary) {
292:	$elseType = $this->getType($expr->else, $context);
293:	if ($expr->if === null) {
294:	$condType = $this->getType($expr->cond, $context);
295:
296:	return TypeCombinator::union(
297:	TypeCombinator::removeFalsey($condType),
298:	$elseType,
299:	);
300:	}
301:
302:	$ifType = $this->getType($expr->if, $context);
303:
304:	return TypeCombinator::union(
305:	TypeCombinator::removeFalsey($ifType),
306:	$elseType,
307:	);
308:	}
309:
310:	if ($expr instanceof Expr\FuncCall && $expr->name instanceof Name && $expr->name->toLowerString() === 'constant') {
311:	$firstArg = $expr->args[0] ?? null;
312:	if ($firstArg instanceof Arg && $firstArg->value instanceof String_) {
313:	$constant = $this->constantResolver->resolvePredefinedConstant($firstArg->value->value);
314:	if ($constant !== null) {
315:	return $constant;
316:	}
317:	}
318:	}
319:
320:	if ($expr instanceof Expr\BooleanNot) {
321:	$exprBooleanType = $this->getType($expr->expr, $context)->toBoolean();
322:
323:	if ($exprBooleanType instanceof ConstantBooleanType) {
324:	return new ConstantBooleanType(!$exprBooleanType->getValue());
325:	}
326:
327:	return new BooleanType();
328:	}
329:
330:	if ($expr instanceof Expr\BitwiseNot) {
331:	return $this->getBitwiseNotType($expr->expr, fn (Expr $expr): Type => $this->getType($expr, $context));
332:	}
333:
334:	if ($expr instanceof Expr\BinaryOp\Concat) {
335:	return $this->getConcatType($expr->left, $expr->right, fn (Expr $expr): Type => $this->getType($expr, $context));
336:	}
337:
338:	if ($expr instanceof Expr\BinaryOp\BitwiseAnd) {
339:	return $this->getBitwiseAndType($expr->left, $expr->right, fn (Expr $expr): Type => $this->getType($expr, $context));
340:	}
341:
342:	if ($expr instanceof Expr\BinaryOp\BitwiseOr) {
343:	return $this->getBitwiseOrType($expr->left, $expr->right, fn (Expr $expr): Type => $this->getType($expr, $context));
344:	}
345:
346:	if ($expr instanceof Expr\BinaryOp\BitwiseXor) {
347:	return $this->getBitwiseXorType($expr->left, $expr->right, fn (Expr $expr): Type => $this->getType($expr, $context));
348:	}
349:
350:	if ($expr instanceof Expr\BinaryOp\Spaceship) {
351:	return $this->getSpaceshipType($expr->left, $expr->right, fn (Expr $expr): Type => $this->getType($expr, $context));
352:	}
353:
354:	if (
355:	$expr instanceof Expr\BinaryOp\BooleanAnd
356:	\|\| $expr instanceof Expr\BinaryOp\LogicalAnd
357:	\|\| $expr instanceof Expr\BinaryOp\BooleanOr
358:	\|\| $expr instanceof Expr\BinaryOp\LogicalOr
359:	) {
360:	return new BooleanType();
361:	}
362:
363:	if ($expr instanceof Expr\BinaryOp\Div) {
364:	return $this->getDivType($expr->left, $expr->right, fn (Expr $expr): Type => $this->getType($expr, $context));
365:	}
366:
367:	if ($expr instanceof Expr\BinaryOp\Mod) {
368:	return $this->getModType($expr->left, $expr->right, fn (Expr $expr): Type => $this->getType($expr, $context));
369:	}
370:
371:	if ($expr instanceof Expr\BinaryOp\Plus) {
372:	return $this->getPlusType($expr->left, $expr->right, fn (Expr $expr): Type => $this->getType($expr, $context));
373:	}
374:
375:	if ($expr instanceof Expr\BinaryOp\Minus) {
376:	return $this->getMinusType($expr->left, $expr->right, fn (Expr $expr): Type => $this->getType($expr, $context));
377:	}
378:
379:	if ($expr instanceof Expr\BinaryOp\Mul) {
380:	return $this->getMulType($expr->left, $expr->right, fn (Expr $expr): Type => $this->getType($expr, $context));
381:	}
382:
383:	if ($expr instanceof Expr\BinaryOp\Pow) {
384:	return $this->getPowType($expr->left, $expr->right, fn (Expr $expr): Type => $this->getType($expr, $context));
385:	}
386:
387:	if ($expr instanceof Expr\BinaryOp\ShiftLeft) {
388:	return $this->getShiftLeftType($expr->left, $expr->right, fn (Expr $expr): Type => $this->getType($expr, $context));
389:	}
390:
391:	if ($expr instanceof Expr\BinaryOp\ShiftRight) {
392:	return $this->getShiftRightType($expr->left, $expr->right, fn (Expr $expr): Type => $this->getType($expr, $context));
393:	}
394:
395:	if ($expr instanceof BinaryOp\Identical) {
396:	return $this->resolveIdenticalType(
397:	$this->getType($expr->left, $context),
398:	$this->getType($expr->right, $context),
399:	)->type;
400:	}
401:
402:	if ($expr instanceof BinaryOp\NotIdentical) {
403:	return $this->getType(new Expr\BooleanNot(new BinaryOp\Identical($expr->left, $expr->right)), $context);
404:	}
405:
406:	if ($expr instanceof BinaryOp\Equal) {
407:	return $this->resolveEqualType(
408:	$this->getType($expr->left, $context),
409:	$this->getType($expr->right, $context),
410:	)->type;
411:	}
412:
413:	if ($expr instanceof BinaryOp\NotEqual) {
414:	return $this->getType(new Expr\BooleanNot(new BinaryOp\Equal($expr->left, $expr->right)), $context);
415:	}
416:
417:	if ($expr instanceof Expr\BinaryOp\Smaller) {
418:	return $this->getType($expr->left, $context)->isSmallerThan($this->getType($expr->right, $context), $this->phpVersion)->toBooleanType();
419:	}
420:
421:	if ($expr instanceof Expr\BinaryOp\SmallerOrEqual) {
422:	return $this->getType($expr->left, $context)->isSmallerThanOrEqual($this->getType($expr->right, $context), $this->phpVersion)->toBooleanType();
423:	}
424:
425:	if ($expr instanceof Expr\BinaryOp\Greater) {
426:	return $this->getType($expr->right, $context)->isSmallerThan($this->getType($expr->left, $context), $this->phpVersion)->toBooleanType();
427:	}
428:
429:	if ($expr instanceof Expr\BinaryOp\GreaterOrEqual) {
430:	return $this->getType($expr->right, $context)->isSmallerThanOrEqual($this->getType($expr->left, $context), $this->phpVersion)->toBooleanType();
431:	}
432:
433:	if ($expr instanceof Expr\BinaryOp\LogicalXor) {
434:	$leftBooleanType = $this->getType($expr->left, $context)->toBoolean();
435:	$rightBooleanType = $this->getType($expr->right, $context)->toBoolean();
436:
437:	if (
438:	$leftBooleanType instanceof ConstantBooleanType
439:	&& $rightBooleanType instanceof ConstantBooleanType
440:	) {
441:	return new ConstantBooleanType(
442:	$leftBooleanType->getValue() xor $rightBooleanType->getValue(),
443:	);
444:	}
445:
446:	return new BooleanType();
447:	}
448:
449:	if ($expr instanceof MagicConst\Class_) {
450:	if ($context->getTraitName() !== null) {
451:	return new IntersectionType([
452:	new ClassStringType(),
453:	new AccessoryLiteralStringType(),
454:	]);
455:	}
456:
457:	if ($context->getClassName() === null) {
458:	return new ConstantStringType('');
459:	}
460:
461:	return new ConstantStringType($context->getClassName(), true);
462:	}
463:
464:	if ($expr instanceof MagicConst\Namespace_) {
465:	if ($context->getTraitName() !== null) {
466:	return new IntersectionType([
467:	new StringType(),
468:	new AccessoryLiteralStringType(),
469:	]);
470:	}
471:
472:	return new ConstantStringType($context->getNamespace() ?? '');
473:	}
474:
475:	if ($expr instanceof MagicConst\Method) {
476:	return new ConstantStringType($context->getMethod() ?? '');
477:	}
478:
479:	if ($expr instanceof MagicConst\Function_) {
480:	return new ConstantStringType($context->getFunction() ?? '');
481:	}
482:
483:	if ($expr instanceof MagicConst\Trait_) {
484:	if ($context->getTraitName() === null) {
485:	return new ConstantStringType('');
486:	}
487:
488:	return new ConstantStringType($context->getTraitName(), true);
489:	}
490:
491:	if ($expr instanceof MagicConst\Property) {
492:	$contextProperty = $context->getProperty();
493:	if ($contextProperty === null) {
494:	return new ConstantStringType('');
495:	}
496:
497:	return new ConstantStringType($contextProperty);
498:	}
499:
500:	if ($expr instanceof PropertyFetch && $expr->name instanceof Identifier) {
501:	$fetchedOnType = $this->getType($expr->var, $context);
502:	if (!$fetchedOnType->hasInstanceProperty($expr->name->name)->yes()) {
503:	return new ErrorType();
504:	}
505:
506:	return $fetchedOnType->getInstanceProperty($expr->name->name, new OutOfClassScope())->getReadableType();
507:	}
508:
509:	return new MixedType();
510:	}
511:
512:	/**
513:	* @param callable(Expr): Type $getTypeCallback
514:	*/
515:	public function getConcatType(Expr $left, Expr $right, callable $getTypeCallback): Type
516:	{
517:	$leftType = $getTypeCallback($left);
518:	$rightType = $getTypeCallback($right);
519:
520:	return $this->resolveConcatType($leftType, $rightType);
521:	}
522:
523:	public function resolveConcatType(Type $left, Type $right): Type
524:	{
525:	$leftStringType = $left->toString();
526:	$rightStringType = $right->toString();
527:	if (TypeCombinator::union(
528:	$leftStringType,
529:	$rightStringType,
530:	) instanceof ErrorType) {
531:	return new ErrorType();
532:	}
533:
534:	if ($leftStringType instanceof ConstantStringType && $leftStringType->getValue() === '') {
535:	return $rightStringType;
536:	}
537:
538:	if ($rightStringType instanceof ConstantStringType && $rightStringType->getValue() === '') {
539:	return $leftStringType;
540:	}
541:
542:	if ($leftStringType instanceof ConstantStringType && $rightStringType instanceof ConstantStringType) {
543:	return $leftStringType->append($rightStringType);
544:	}
545:
546:	$leftConstantStrings = $leftStringType->getConstantStrings();
547:	$rightConstantStrings = $rightStringType->getConstantStrings();
548:	$combinedConstantStringsCount = count($leftConstantStrings) * count($rightConstantStrings);
549:
550:	// we limit the number of union-types for performance reasons
551:	if ($combinedConstantStringsCount > 0 && $combinedConstantStringsCount <= self::CALCULATE_SCALARS_LIMIT) {
552:	$strings = [];
553:
554:	foreach ($leftConstantStrings as $leftConstantString) {
555:	if ($leftConstantString->getValue() === '') {
556:	$strings = array_merge($strings, $rightConstantStrings);
557:
558:	continue;
559:	}
560:
561:	foreach ($rightConstantStrings as $rightConstantString) {
562:	if ($rightConstantString->getValue() === '') {
563:	$strings[] = $leftConstantString;
564:
565:	continue;
566:	}
567:
568:	$strings[] = $leftConstantString->append($rightConstantString);
569:	}
570:	}
571:
572:	if (count($strings) > 0) {
573:	return TypeCombinator::union(...$strings);
574:	}
575:	}
576:
577:	$accessoryTypes = [];
578:	if ($leftStringType->isNonEmptyString()->and($rightStringType->isNonEmptyString())->yes()) {
579:	$accessoryTypes[] = new AccessoryNonFalsyStringType();
580:	} elseif ($leftStringType->isNonFalsyString()->or($rightStringType->isNonFalsyString())->yes()) {
581:	$accessoryTypes[] = new AccessoryNonFalsyStringType();
582:	} elseif ($leftStringType->isNonEmptyString()->or($rightStringType->isNonEmptyString())->yes()) {
583:	$accessoryTypes[] = new AccessoryNonEmptyStringType();
584:	}
585:
586:	if ($leftStringType->isLiteralString()->and($rightStringType->isLiteralString())->yes()) {
587:	$accessoryTypes[] = new AccessoryLiteralStringType();
588:	}
589:
590:	if ($leftStringType->isLowercaseString()->and($rightStringType->isLowercaseString())->yes()) {
591:	$accessoryTypes[] = new AccessoryLowercaseStringType();
592:	}
593:
594:	if ($leftStringType->isUppercaseString()->and($rightStringType->isUppercaseString())->yes()) {
595:	$accessoryTypes[] = new AccessoryUppercaseStringType();
596:	}
597:
598:	$leftNumericStringNonEmpty = TypeCombinator::remove($leftStringType, new ConstantStringType(''));
599:	if ($leftNumericStringNonEmpty->isNumericString()->yes()) {
600:	$validationCallback = $left->isInteger()->yes()
601:	? static fn (string $value): bool => !str_starts_with($value, '-')
602:	: static fn (string $value): bool => Strings::match($value, '#^\d+$#') !== null;
603:
604:	$allRightConstantsZeroOrMore = false;
605:	foreach ($rightConstantStrings as $rightConstantString) {
606:	if ($rightConstantString->getValue() === '') {
607:	continue;
608:	}
609:
610:	if (
611:	!is_numeric($rightConstantString->getValue())
612:	\|\| !$validationCallback($rightConstantString->getValue())
613:	) {
614:	$allRightConstantsZeroOrMore = false;
615:	break;
616:	}
617:
618:	$allRightConstantsZeroOrMore = true;
619:	}
620:
621:	$zeroOrMoreInteger = IntegerRangeType::fromInterval(0, null);
622:	$nonNegativeRight = $allRightConstantsZeroOrMore \|\| $zeroOrMoreInteger->isSuperTypeOf($right)->yes();
623:	if ($nonNegativeRight) {
624:	$accessoryTypes[] = new AccessoryNumericStringType();
625:	}
626:	}
627:
628:	if (count($accessoryTypes) > 0) {
629:	$accessoryTypes[] = new StringType();
630:	return new IntersectionType($accessoryTypes);
631:	}
632:
633:	return new StringType();
634:	}
635:
636:	/**
637:	* @param callable(Expr): Type $getTypeCallback
638:	*/
639:	public function getArrayType(Expr\Array_ $expr, callable $getTypeCallback): Type
640:	{
641:	if (count($expr->items) > ConstantArrayTypeBuilder::ARRAY_COUNT_LIMIT) {
642:	return $this->oversizedArrayBuilder->build($expr, $getTypeCallback);
643:	}
644:
645:	$arrayBuilder = ConstantArrayTypeBuilder::createEmpty();
646:	$isList = null;
647:	$hasOffsetValueTypes = [];
648:	foreach ($expr->items as $arrayItem) {
649:	$valueType = $getTypeCallback($arrayItem->value);
650:	if ($arrayItem->unpack) {
651:	$constantArrays = $valueType->getConstantArrays();
652:	if (count($constantArrays) === 1) {
653:	$constantArrayType = $constantArrays[0];
654:
655:	$hasStringKey = false;
656:	if ($this->phpVersion->supportsArrayUnpackingWithStringKeys()) {
657:	foreach ($constantArrayType->getKeyTypes() as $keyType) {
658:	if ($keyType->isString()->yes()) {
659:	$hasStringKey = true;
660:	break;
661:	}
662:	}
663:	}
664:
665:	foreach ($constantArrayType->getValueTypes() as $i => $innerValueType) {
666:	if ($hasStringKey) {
667:	$arrayBuilder->setOffsetValueType($constantArrayType->getKeyTypes()[$i], $innerValueType, $constantArrayType->isOptionalKey($i));
668:	if (!$constantArrayType->isOptionalKey($i)) {
669:	$hasOffsetValueTypes[$constantArrayType->getKeyTypes()[$i]->getValue()] = new HasOffsetValueType($constantArrayType->getKeyTypes()[$i], $innerValueType);
670:	}
671:	} else {
672:	$arrayBuilder->setOffsetValueType(null, $innerValueType, $constantArrayType->isOptionalKey($i));
673:	}
674:	}
675:	} else {
676:	$arrayBuilder->degradeToGeneralArray();
677:
678:	if ($this->phpVersion->supportsArrayUnpackingWithStringKeys() && !$valueType->getIterableKeyType()->isString()->no()) {
679:	$isList = false;
680:	$offsetType = $valueType->getIterableKeyType();
681:
682:	foreach ($hasOffsetValueTypes as $key => $hasOffsetValueType) {
683:	if (!$offsetType->isSuperTypeOf($hasOffsetValueType->getOffsetType())->yes()) {
684:	continue;
685:	}
686:
687:	unset($hasOffsetValueTypes[$key]);
688:	}
689:	} else {
690:	$isList ??= $arrayBuilder->isList();
691:	$offsetType = new IntegerType();
692:	}
693:
694:	$arrayBuilder->setOffsetValueType($offsetType, $valueType->getIterableValueType(), !$valueType->isIterableAtLeastOnce()->yes());
695:	}
696:	} else {
697:	$arrayBuilder->setOffsetValueType(
698:	$arrayItem->key !== null ? $getTypeCallback($arrayItem->key) : null,
699:	$valueType,
700:	);
701:	}
702:	}
703:
704:	$arrayType = $arrayBuilder->getArray();
705:	if ($isList === true) {
706:	$arrayType = TypeCombinator::intersect($arrayType, new AccessoryArrayListType());
707:	}
708:
709:	if (count($hasOffsetValueTypes) > 0 && !$arrayType->isConstantArray()->yes()) {
710:	$arrayType = TypeCombinator::intersect($arrayType, ...array_values($hasOffsetValueTypes));
711:	}
712:
713:	return $arrayType;
714:	}
715:
716:	/**
717:	* @param callable(Expr): Type $getTypeCallback
718:	*/
719:	public function getCastType(Expr\Cast $expr, callable $getTypeCallback): Type
720:	{
721:	if ($expr instanceof \PhpParser\Node\Expr\Cast\Int_) {
722:	return $getTypeCallback($expr->expr)->toInteger();
723:	}
724:	if ($expr instanceof Bool_) {
725:	return $getTypeCallback($expr->expr)->toBoolean();
726:	}
727:	if ($expr instanceof Double) {
728:	return $getTypeCallback($expr->expr)->toFloat();
729:	}
730:	if ($expr instanceof \PhpParser\Node\Expr\Cast\String_) {
731:	return $getTypeCallback($expr->expr)->toString();
732:	}
733:	if ($expr instanceof Array_) {
734:	return $getTypeCallback($expr->expr)->toArray();
735:	}
736:	if ($expr instanceof Object_) {
737:	return $this->getCastObjectType($getTypeCallback($expr->expr));
738:	}
739:
740:	return new MixedType();
741:	}
742:
743:	public function getCastObjectType(Type $exprType): Type
744:	{
745:	$castToObject = static function (Type $type): Type {
746:	$constantArrays = $type->getConstantArrays();
747:	if (count($constantArrays) > 0) {
748:	$objects = [];
749:	foreach ($constantArrays as $constantArray) {
750:	$properties = [];
751:	$optionalProperties = [];
752:	foreach ($constantArray->getKeyTypes() as $i => $keyType) {
753:	$valueType = $constantArray->getValueTypes()[$i];
754:	$optional = $constantArray->isOptionalKey($i);
755:	if ($optional) {
756:	$optionalProperties[] = $keyType->getValue();
757:	}
758:	$properties[$keyType->getValue()] = $valueType;
759:	}
760:
761:	$objects[] = new IntersectionType([new ObjectShapeType($properties, $optionalProperties), new ObjectType(stdClass::class)]);
762:	}
763:
764:	return TypeCombinator::union(...$objects);
765:	}
766:	if ($type->isObject()->yes()) {
767:	return $type;
768:	}
769:
770:	return new ObjectType('stdClass');
771:	};
772:
773:	if ($exprType instanceof UnionType) {
774:	return TypeCombinator::union(...array_map($castToObject, $exprType->getTypes()));
775:	}
776:
777:	return $castToObject($exprType);
778:	}
779:
780:	/**
781:	* @param Name\|Identifier\|ComplexType\|null $type
782:	*/
783:	public function getFunctionType($type, bool $isNullable, bool $isVariadic, InitializerExprContext $context): Type
784:	{
785:	if ($isNullable) {
786:	return TypeCombinator::addNull(
787:	$this->getFunctionType($type, false, $isVariadic, $context),
788:	);
789:	}
790:	if ($isVariadic) {
791:	if ($this->phpVersion->supportsNamedArguments()) {
792:	return new ArrayType(new UnionType([IntegerRangeType::createAllGreaterThanOrEqualTo(0), new StringType()]), $this->getFunctionType(
793:	$type,
794:	false,
795:	false,
796:	$context,
797:	));
798:	}
799:
800:	return new IntersectionType([new ArrayType(IntegerRangeType::createAllGreaterThanOrEqualTo(0), $this->getFunctionType(
801:	$type,
802:	false,
803:	false,
804:	$context,
805:	)), new AccessoryArrayListType()]);
806:	}
807:
808:	if ($type instanceof Name) {
809:	$className = (string) $type;
810:	$lowercasedClassName = strtolower($className);
811:	if ($lowercasedClassName === 'parent') {
812:	$classReflection = null;
813:	if ($context->getClassName() !== null && $this->getReflectionProvider()->hasClass($context->getClassName())) {
814:	$classReflection = $this->getReflectionProvider()->getClass($context->getClassName());
815:	}
816:	if ($classReflection !== null && $classReflection->getParentClass() !== null) {
817:	return new ObjectType($classReflection->getParentClass()->getName());
818:	}
819:
820:	return new NonexistentParentClassType();
821:	}
822:	}
823:
824:	$classReflection = null;
825:	if ($context->getClassName() !== null && $this->getReflectionProvider()->hasClass($context->getClassName())) {
826:	$classReflection = $this->getReflectionProvider()->getClass($context->getClassName());
827:	}
828:
829:	return ParserNodeTypeToPHPStanType::resolve($type, $classReflection);
830:	}
831:
832:	private function isParameterValueNullable(Param $parameter): bool
833:	{
834:	if ($parameter->default instanceof ConstFetch) {
835:	return strtolower((string) $parameter->default->name) === 'null';
836:	}
837:
838:	return false;
839:	}
840:
841:	public function getFirstClassCallableType(Expr\CallLike $expr, InitializerExprContext $context, bool $nativeTypesPromoted): Type
842:	{
843:	if ($expr instanceof FuncCall) {
844:	if ($expr->name instanceof Name) {
845:	if ($this->getReflectionProvider()->hasFunction($expr->name, $context)) {
846:	$function = $this->getReflectionProvider()->getFunction($expr->name, $context);
847:	return $this->createFirstClassCallable(
848:	$function,
849:	$function->getVariants(),
850:	$nativeTypesPromoted,
851:	);
852:	}
853:
854:	return new ObjectType(Closure::class);
855:	}
856:	}
857:
858:	if ($expr instanceof Expr\StaticCall) {
859:	if (!$expr->class instanceof Name) {
860:	return new ObjectType(Closure::class);
861:	}
862:
863:	if (!$expr->name instanceof Identifier) {
864:	return new ObjectType(Closure::class);
865:	}
866:
867:	$classReflection = null;
868:	if ($context->getClassName() !== null && $this->getReflectionProvider()->hasClass($context->getClassName())) {
869:	$classReflection = $this->getReflectionProvider()->getClass($context->getClassName());
870:	}
871:
872:	$classType = $this->resolveTypeByName($expr->class, $classReflection);
873:	$methodName = $expr->name->toString();
874:	if (!$classType->hasMethod($methodName)->yes()) {
875:	return new ObjectType(Closure::class);
876:	}
877:
878:	$method = $classType->getMethod($methodName, new OutOfClassScope());
879:	$classType = $this->resolveTypeByNameWithLateStaticBinding($expr->class, $classType, $method);
880:	if (!$classType->hasMethod($methodName)->yes()) {
881:	return new ObjectType(Closure::class);
882:	}
883:	$method = $classType->getMethod($methodName, new OutOfClassScope());
884:
885:	return $this->createFirstClassCallable(
886:	$method,
887:	$method->getVariants(),
888:	$nativeTypesPromoted,
889:	);
890:	}
891:
892:	if ($expr instanceof New_) {
893:	return new ErrorType();
894:	}
895:
896:	throw new ShouldNotHappenException();
897:	}
898:
899:	/**
900:	* @param ParametersAcceptor[] $variants
901:	*/
902:	public function createFirstClassCallable(
903:	FunctionReflection\|ExtendedMethodReflection\|null $function,
904:	array $variants,
905:	bool $nativeTypesPromoted,
906:	): Type
907:	{
908:	$closureTypes = [];
909:
910:	foreach ($variants as $variant) {
911:	$returnType = $variant->getReturnType();
912:	if ($variant instanceof ExtendedParametersAcceptor) {
913:	$returnType = $nativeTypesPromoted ? $variant->getNativeReturnType() : $returnType;
914:	}
915:
916:	$templateTags = [];
917:	foreach ($variant->getTemplateTypeMap()->getTypes() as $templateType) {
918:	if (!$templateType instanceof TemplateType) {
919:	continue;
920:	}
921:	$templateTags[$templateType->getName()] = new TemplateTag(
922:	$templateType->getName(),
923:	$templateType->getBound(),
924:	$templateType->getDefault(),
925:	$templateType->getVariance(),
926:	);
927:	}
928:
929:	$throwPoints = [];
930:	$impurePoints = [];
931:	$acceptsNamedArguments = TrinaryLogic::createYes();
932:	$mustUseReturnValue = TrinaryLogic::createMaybe();
933:	$isStaticClosure = TrinaryLogic::createMaybe();
934:	if ($variant instanceof CallableParametersAcceptor) {
935:	$throwPoints = $variant->getThrowPoints();
936:	$impurePoints = $variant->getImpurePoints();
937:	$acceptsNamedArguments = $variant->acceptsNamedArguments();
938:	$mustUseReturnValue = $variant->mustUseReturnValue();
939:	$isStaticClosure = $variant->isStaticClosure();
940:	} elseif ($function !== null) {
941:	$returnTypeForThrow = $variant->getReturnType();
942:	$throwType = $function->getThrowType();
943:	if ($throwType === null) {
944:	if ($returnTypeForThrow instanceof NeverType && $returnTypeForThrow->isExplicit()) {
945:	$throwType = new ObjectType(Throwable::class);
946:	}
947:	}
948:
949:	if ($throwType !== null) {
950:	if (!$throwType->isVoid()->yes()) {
951:	$throwPoints[] = SimpleThrowPoint::createExplicit($throwType, true);
952:	}
953:	} else {
954:	if (!(new ObjectType(Throwable::class))->isSuperTypeOf($returnTypeForThrow)->yes()) {
955:	$throwPoints[] = SimpleThrowPoint::createImplicit();
956:	}
957:	}
958:
959:	$impurePoint = SimpleImpurePoint::createFromVariant($function, $variant);
960:	if ($impurePoint !== null) {
961:	$impurePoints[] = $impurePoint;
962:	}
963:
964:	$acceptsNamedArguments = $function->acceptsNamedArguments();
965:	$mustUseReturnValue = $function->mustUseReturnValue();
966:	}
967:
968:	$parameters = $variant->getParameters();
969:	if ($function !== null) {
970:	$assertions = $function->getAsserts();
971:	} elseif ($variant instanceof CallableParametersAcceptor) {
972:	$assertions = $variant->getAsserts();
973:	} else {
974:	$assertions = Assertions::createEmpty();
975:	}
976:
977:	// a conditional return type referencing the function's own parameter,
978:	// like @return ($value is int ? true : false) on is_int(),
979:	// also becomes a type predicate of the resulting Closure
980:	$assertions = CallableAssertionsHelper::withConditionalReturnPredicate($assertions, $variant);
981:	$closureTypes[] = new ClosureType(
982:	$parameters,
983:	$returnType,
984:	$variant->isVariadic(),
985:	$variant->getTemplateTypeMap(),
986:	$variant->getResolvedTemplateTypeMap(),
987:	$variant instanceof ExtendedParametersAcceptor ? $variant->getCallSiteVarianceMap() : TemplateTypeVarianceMap::createEmpty(),
988:	$templateTags,
989:	$throwPoints,
990:	$impurePoints,
991:	acceptsNamedArguments: $acceptsNamedArguments,
992:	mustUseReturnValue: $mustUseReturnValue,
993:	assertions: $assertions,
994:	isStatic: $isStaticClosure,
995:	);
996:	}
997:
998:	return TypeCombinator::union(...$closureTypes);
999:	}
1000:
1001:	/**
1002:	* @param callable(Expr): Type $getTypeCallback
1003:	*/
1004:	public function getBitwiseAndType(Expr $left, Expr $right, callable $getTypeCallback): Type
1005:	{
1006:	$leftType = $getTypeCallback($left);
1007:	$rightType = $getTypeCallback($right);
1008:
1009:	$specifiedTypes = $this->operatorTypeSpecifyingExtensionRegistry
1010:	->callOperatorTypeSpecifyingExtensions(new BinaryOp\BitwiseAnd($left, $right), $leftType, $rightType);
1011:	if ($specifiedTypes !== null) {
1012:	return $specifiedTypes;
1013:	}
1014:
1015:	if ($leftType instanceof NeverType \|\| $rightType instanceof NeverType) {
1016:	return $this->getNeverType($leftType, $rightType);
1017:	}
1018:
1019:	$result = $this->getFiniteOrConstantScalarTypes($leftType, $rightType, static fn ($a, $b) => $a & $b);
1020:	if ($result instanceof Type) {
1021:	return $result;
1022:	} elseif ($result === self::IS_SCALAR_TYPE) {
1023:	$leftType = $this->optimizeScalarType($leftType);
1024:	$rightType = $this->optimizeScalarType($rightType);
1025:	}
1026:
1027:	if ($leftType instanceof MixedType && $rightType instanceof MixedType) {
1028:	return new BenevolentUnionType([new IntegerType(), new StringType()]);
1029:	}
1030:
1031:	$leftIsString = $leftType->isString();
1032:	$rightIsString = $rightType->isString();
1033:	if (
1034:	($leftIsString->yes() \|\| $leftType instanceof MixedType)
1035:	&& ($rightIsString->yes() \|\| $rightType instanceof MixedType)
1036:	) {
1037:	return new StringType();
1038:	}
1039:	if ($leftIsString->maybe() && $rightIsString->maybe()) {
1040:	return new ErrorType();
1041:	}
1042:
1043:	$leftNumberType = $leftType->toNumber();
1044:	$rightNumberType = $rightType->toNumber();
1045:
1046:	if ($leftNumberType instanceof ErrorType \|\| $rightNumberType instanceof ErrorType) {
1047:	return new ErrorType();
1048:	}
1049:
1050:	if ($rightNumberType instanceof ConstantIntegerType && $rightNumberType->getValue() >= 0) {
1051:	return IntegerRangeType::fromInterval(0, $rightNumberType->getValue());
1052:	}
1053:	if ($leftNumberType instanceof ConstantIntegerType && $leftNumberType->getValue() >= 0) {
1054:	return IntegerRangeType::fromInterval(0, $leftNumberType->getValue());
1055:	}
1056:
1057:	return new IntegerType();
1058:	}
1059:
1060:	/**
1061:	* @param callable(Expr): Type $getTypeCallback
1062:	*/
1063:	public function getBitwiseOrType(Expr $left, Expr $right, callable $getTypeCallback): Type
1064:	{
1065:	$leftType = $getTypeCallback($left);
1066:	$rightType = $getTypeCallback($right);
1067:
1068:	$specifiedTypes = $this->operatorTypeSpecifyingExtensionRegistry
1069:	->callOperatorTypeSpecifyingExtensions(new BinaryOp\BitwiseOr($left, $right), $leftType, $rightType);
1070:	if ($specifiedTypes !== null) {
1071:	return $specifiedTypes;
1072:	}
1073:
1074:	if ($leftType instanceof NeverType \|\| $rightType instanceof NeverType) {
1075:	return $this->getNeverType($leftType, $rightType);
1076:	}
1077:
1078:	$result = $this->getFiniteOrConstantScalarTypes($leftType, $rightType, static fn ($a, $b) => $a \| $b);
1079:	if ($result instanceof Type) {
1080:	return $result;
1081:	} elseif ($result === self::IS_SCALAR_TYPE) {
1082:	$leftType = $this->optimizeScalarType($leftType);
1083:	$rightType = $this->optimizeScalarType($rightType);
1084:	}
1085:
1086:	if ($leftType instanceof MixedType && $rightType instanceof MixedType) {
1087:	return new BenevolentUnionType([new IntegerType(), new StringType()]);
1088:	}
1089:
1090:	$leftIsString = $leftType->isString();
1091:	$rightIsString = $rightType->isString();
1092:	if (
1093:	($leftIsString->yes() \|\| $leftType instanceof MixedType)
1094:	&& ($rightIsString->yes() \|\| $rightType instanceof MixedType)
1095:	) {
1096:	return new StringType();
1097:	}
1098:	if ($leftIsString->maybe() && $rightIsString->maybe()) {
1099:	return new ErrorType();
1100:	}
1101:
1102:	if ($leftType->toNumber() instanceof ErrorType \|\| $rightType->toNumber() instanceof ErrorType) {
1103:	return new ErrorType();
1104:	}
1105:
1106:	return new IntegerType();
1107:	}
1108:
1109:	/**
1110:	* @param callable(Expr): Type $getTypeCallback
1111:	*/
1112:	public function getBitwiseXorType(Expr $left, Expr $right, callable $getTypeCallback): Type
1113:	{
1114:	$leftType = $getTypeCallback($left);
1115:	$rightType = $getTypeCallback($right);
1116:
1117:	$specifiedTypes = $this->operatorTypeSpecifyingExtensionRegistry
1118:	->callOperatorTypeSpecifyingExtensions(new BinaryOp\BitwiseXor($left, $right), $leftType, $rightType);
1119:	if ($specifiedTypes !== null) {
1120:	return $specifiedTypes;
1121:	}
1122:
1123:	if ($leftType instanceof NeverType \|\| $rightType instanceof NeverType) {
1124:	return $this->getNeverType($leftType, $rightType);
1125:	}
1126:
1127:	$result = $this->getFiniteOrConstantScalarTypes($leftType, $rightType, static fn ($a, $b) => $a ^ $b);
1128:	if ($result instanceof Type) {
1129:	return $result;
1130:	} elseif ($result === self::IS_SCALAR_TYPE) {
1131:	$leftType = $this->optimizeScalarType($leftType);
1132:	$rightType = $this->optimizeScalarType($rightType);
1133:	}
1134:
1135:	if ($leftType instanceof MixedType && $rightType instanceof MixedType) {
1136:	return new BenevolentUnionType([new IntegerType(), new StringType()]);
1137:	}
1138:
1139:	$leftIsString = $leftType->isString();
1140:	$rightIsString = $rightType->isString();
1141:	if (
1142:	($leftIsString->yes() \|\| $leftType instanceof MixedType)
1143:	&& ($rightIsString->yes() \|\| $rightType instanceof MixedType)
1144:	) {
1145:	return new StringType();
1146:	}
1147:	if ($leftIsString->maybe() && $rightIsString->maybe()) {
1148:	return new ErrorType();
1149:	}
1150:
1151:	if ($leftType->toNumber() instanceof ErrorType \|\| $rightType->toNumber() instanceof ErrorType) {
1152:	return new ErrorType();
1153:	}
1154:
1155:	return new IntegerType();
1156:	}
1157:
1158:	private const IS_SCALAR_TYPE = 1;
1159:	private const IS_UNKNOWN = 2;
1160:
1161:	/**
1162:	* @param callable(bool\|float\|int\|string\|null, bool\|float\|int\|string\|null):string $operationCallable
1163:	*
1164:	* @return self::IS_UNKNOWN\|self::IS_SCALAR_TYPE\|Type
1165:	*/
1166:	private function getFiniteOrConstantScalarTypes(Type $leftType, Type $rightType, callable $operationCallable): int\|Type
1167:	{
1168:	if ($leftType instanceof IntegerRangeType) {
1169:	$leftTypes = $leftType->getFiniteTypes();
1170:	} else {
1171:	$leftTypes = $leftType->getConstantScalarTypes();
1172:	}
1173:	if ($rightType instanceof IntegerRangeType) {
1174:	$rightTypes = $rightType->getFiniteTypes();
1175:	} else {
1176:	$rightTypes = $rightType->getConstantScalarTypes();
1177:	}
1178:
1179:	$leftTypesCount = count($leftTypes);
1180:	$rightTypesCount = count($rightTypes);
1181:
1182:	if ($leftTypesCount === 0 \|\| $rightTypesCount === 0) {
1183:	return self::IS_UNKNOWN;
1184:	}
1185:
1186:	$generalize = $leftTypesCount * $rightTypesCount > self::CALCULATE_SCALARS_LIMIT;
1187:	if ($generalize) {
1188:	return self::IS_SCALAR_TYPE;
1189:	}
1190:
1191:	$resultTypes = [];
1192:	foreach ($leftTypes as $leftTypeInner) {
1193:	foreach ($rightTypes as $rightTypeInner) {
1194:	if ($leftTypeInner instanceof ConstantStringType && $rightTypeInner instanceof ConstantStringType) {
1195:	$resultValue = $operationCallable($leftTypeInner->getValue(), $rightTypeInner->getValue());
1196:	$resultType = $this->getTypeFromValue($resultValue);
1197:	} else {
1198:	$leftNumberType = $leftTypeInner->toNumber();
1199:	$rightNumberType = $rightTypeInner->toNumber();
1200:
1201:	if ($leftNumberType instanceof ErrorType \|\| $rightNumberType instanceof ErrorType) {
1202:	return new ErrorType();
1203:	}
1204:
1205:	if (!$leftNumberType instanceof ConstantScalarType \|\| !$rightNumberType instanceof ConstantScalarType) {
1206:	throw new ShouldNotHappenException();
1207:	}
1208:
1209:	$resultValue = $operationCallable($leftNumberType->getValue(), $rightNumberType->getValue());
1210:	$resultType = $this->getTypeFromValue($resultValue);
1211:	}
1212:	$resultTypes[] = $resultType;
1213:	}
1214:	}
1215:	return TypeCombinator::union(...$resultTypes);
1216:	}
1217:
1218:	/**
1219:	* @param callable(Expr): Type $getTypeCallback
1220:	*/
1221:	public function getSpaceshipType(Expr $left, Expr $right, callable $getTypeCallback): Type
1222:	{
1223:	$leftTypes = $getTypeCallback($left);
1224:	$rightTypes = $getTypeCallback($right);
1225:
1226:	if ($leftTypes instanceof NeverType \|\| $rightTypes instanceof NeverType) {
1227:	return $this->getNeverType($leftTypes, $rightTypes);
1228:	}
1229:
1230:	$leftValues = $leftTypes->getConstantScalarValues();
1231:	$rightValues = $rightTypes->getConstantScalarValues();
1232:
1233:	$leftValuesCount = count($leftValues);
1234:	$rightValuesCount = count($rightValues);
1235:	if ($leftValuesCount > 0 && $rightValuesCount > 0 && $leftValuesCount * $rightValuesCount <= self::CALCULATE_SCALARS_LIMIT) {
1236:	$resultTypes = [];
1237:	foreach ($leftValues as $leftValue) {
1238:	foreach ($rightValues as $rightValue) {
1239:	$resultType = $this->getTypeFromValue($leftValue <=> $rightValue);
1240:	$resultTypes[] = $resultType;
1241:	}
1242:	}
1243:	return TypeCombinator::union(...$resultTypes);
1244:	}
1245:
1246:	return IntegerRangeType::fromInterval(-1, 1);
1247:	}
1248:
1249:	/**
1250:	* @param callable(Expr): Type $getTypeCallback
1251:	*/
1252:	public function getDivType(Expr $left, Expr $right, callable $getTypeCallback): Type
1253:	{
1254:	$leftType = $getTypeCallback($left);
1255:	$rightType = $getTypeCallback($right);
1256:
1257:	$result = $this->getDivTypeFromTypes($left, $right, $leftType, $rightType);
1258:
1259:	if ($leftType->isInteger()->yes() && $rightType->isInteger()->yes()) {
1260:	$modType = $getTypeCallback(new BinaryOp\Mod($left, $right));
1261:	if ($modType->isInteger()->yes() && (new ConstantIntegerType(0))->isSuperTypeOf($modType)->yes()) {
1262:	return TypeCombinator::remove($result, new FloatType());
1263:	}
1264:	}
1265:
1266:	return $result;
1267:	}
1268:
1269:	private function getDivTypeFromTypes(Expr $left, Expr $right, Type $leftType, Type $rightType): Type
1270:	{
1271:	$leftTypes = $leftType->getConstantScalarTypes();
1272:	$rightTypes = $rightType->getConstantScalarTypes();
1273:	$leftTypesCount = count($leftTypes);
1274:	$rightTypesCount = count($rightTypes);
1275:	if ($leftTypesCount > 0 && $rightTypesCount > 0) {
1276:	$resultTypes = [];
1277:	$generalize = $leftTypesCount * $rightTypesCount > self::CALCULATE_SCALARS_LIMIT;
1278:	if (!$generalize) {
1279:	foreach ($leftTypes as $leftTypeInner) {
1280:	foreach ($rightTypes as $rightTypeInner) {
1281:	$leftNumberType = $leftTypeInner->toNumber();
1282:	$rightNumberType = $rightTypeInner->toNumber();
1283:
1284:	if ($leftNumberType instanceof ErrorType \|\| $rightNumberType instanceof ErrorType) {
1285:	return new ErrorType();
1286:	}
1287:
1288:	if (!$leftNumberType instanceof ConstantScalarType \|\| !$rightNumberType instanceof ConstantScalarType) {
1289:	throw new ShouldNotHappenException();
1290:	}
1291:
1292:	if (in_array($rightNumberType->getValue(), [0, 0.0], true)) {
1293:	return new ErrorType();
1294:	}
1295:
1296:	$resultType = $this->getTypeFromValue($leftNumberType->getValue() / $rightNumberType->getValue()); // @phpstan-ignore binaryOp.invalid
1297:	$resultTypes[] = $resultType;
1298:	}
1299:	}
1300:	return TypeCombinator::union(...$resultTypes);
1301:	}
1302:
1303:	$leftType = $this->optimizeScalarType($leftType);
1304:	$rightType = $this->optimizeScalarType($rightType);
1305:	}
1306:
1307:	$rightScalarValues = $rightType->toNumber()->getConstantScalarValues();
1308:	foreach ($rightScalarValues as $scalarValue) {
1309:	if (in_array($scalarValue, [0, 0.0], true)) {
1310:	return new ErrorType();
1311:	}
1312:	}
1313:
1314:	return $this->resolveCommonMath(new BinaryOp\Div($left, $right), $leftType, $rightType);
1315:	}
1316:
1317:	/**
1318:	* @param callable(Expr): Type $getTypeCallback
1319:	*/
1320:	public function getModType(Expr $left, Expr $right, callable $getTypeCallback): Type
1321:	{
1322:	$leftType = $getTypeCallback($left);
1323:	$rightType = $getTypeCallback($right);
1324:
1325:	if ($leftType instanceof NeverType \|\| $rightType instanceof NeverType) {
1326:	return $this->getNeverType($leftType, $rightType);
1327:	}
1328:
1329:	$extensionSpecified = $this->operatorTypeSpecifyingExtensionRegistry
1330:	->callOperatorTypeSpecifyingExtensions(new BinaryOp\Mod($left, $right), $leftType, $rightType);
1331:	if ($extensionSpecified !== null) {
1332:	return $extensionSpecified;
1333:	}
1334:
1335:	if ($leftType->toNumber() instanceof ErrorType \|\| $rightType->toNumber() instanceof ErrorType) {
1336:	return new ErrorType();
1337:	}
1338:
1339:	$leftTypes = $leftType->getConstantScalarTypes();
1340:	$rightTypes = $rightType->getConstantScalarTypes();
1341:	$leftTypesCount = count($leftTypes);
1342:	$rightTypesCount = count($rightTypes);
1343:	if ($leftTypesCount > 0 && $rightTypesCount > 0) {
1344:	$resultTypes = [];
1345:	$generalize = $leftTypesCount * $rightTypesCount > self::CALCULATE_SCALARS_LIMIT;
1346:	if (!$generalize) {
1347:	foreach ($leftTypes as $leftTypeInner) {
1348:	foreach ($rightTypes as $rightTypeInner) {
1349:	$leftNumberType = $leftTypeInner->toNumber();
1350:	$rightNumberType = $rightTypeInner->toNumber();
1351:
1352:	if ($leftNumberType instanceof ErrorType \|\| $rightNumberType instanceof ErrorType) {
1353:	return new ErrorType();
1354:	}
1355:
1356:	if (!$leftNumberType instanceof ConstantScalarType \|\| !$rightNumberType instanceof ConstantScalarType) {
1357:	throw new ShouldNotHappenException();
1358:	}
1359:
1360:	$rightIntegerValue = (int) $rightNumberType->getValue();
1361:	if ($rightIntegerValue === 0) {
1362:	return new ErrorType();
1363:	}
1364:
1365:	$resultType = $this->getTypeFromValue((int) $leftNumberType->getValue() % $rightIntegerValue);
1366:	$resultTypes[] = $resultType;
1367:	}
1368:	}
1369:	return TypeCombinator::union(...$resultTypes);
1370:	}
1371:
1372:	$leftType = $this->optimizeScalarType($leftType);
1373:	$rightType = $this->optimizeScalarType($rightType);
1374:	}
1375:
1376:	$integerType = $rightType->toInteger();
1377:	if ($integerType instanceof ConstantIntegerType && $integerType->getValue() === 1) {
1378:	return new ConstantIntegerType(0);
1379:	}
1380:
1381:	$rightScalarValues = $rightType->toNumber()->getConstantScalarValues();
1382:	foreach ($rightScalarValues as $scalarValue) {
1383:
1384:	if (in_array($scalarValue, [0, 0.0], true)) {
1385:	return new ErrorType();
1386:	}
1387:	}
1388:
1389:	$positiveInt = IntegerRangeType::fromInterval(0, null);
1390:	if ($rightType->isInteger()->yes()) {
1391:	$rangeMin = null;
1392:	$rangeMax = null;
1393:
1394:	if ($rightType instanceof IntegerRangeType) {
1395:	$rangeMax = $rightType->getMax() !== null ? $rightType->getMax() - 1 : null;
1396:	} elseif ($rightType instanceof ConstantIntegerType) {
1397:	$rangeMax = $rightType->getValue() - 1;
1398:	} elseif ($rightType instanceof UnionType) {
1399:	foreach ($rightType->getTypes() as $type) {
1400:	if ($type instanceof IntegerRangeType) {
1401:	if ($type->getMax() === null) {
1402:	$rangeMax = null;
1403:	} else {
1404:	$rangeMax = max($rangeMax, $type->getMax());
1405:	}
1406:	} elseif ($type instanceof ConstantIntegerType) {
1407:	$rangeMax = max($rangeMax, $type->getValue() - 1);
1408:	}
1409:	}
1410:	}
1411:
1412:	if ($positiveInt->isSuperTypeOf($leftType)->yes()) {
1413:	$rangeMin = 0;
1414:	} elseif ($rangeMax !== null) {
1415:	$rangeMin = $rangeMax * -1;
1416:	}
1417:
1418:	return IntegerRangeType::fromInterval($rangeMin, $rangeMax);
1419:	} elseif ($positiveInt->isSuperTypeOf($leftType)->yes()) {
1420:	return IntegerRangeType::fromInterval(0, null);
1421:	}
1422:
1423:	return new IntegerType();
1424:	}
1425:
1426:	/**
1427:	* @param callable(Expr): Type $getTypeCallback
1428:	*/
1429:	public function getPlusType(Expr $left, Expr $right, callable $getTypeCallback): Type
1430:	{
1431:	$leftType = $getTypeCallback($left);
1432:	$rightType = $getTypeCallback($right);
1433:
1434:	if ($leftType instanceof NeverType \|\| $rightType instanceof NeverType) {
1435:	return $this->getNeverType($leftType, $rightType);
1436:	}
1437:
1438:	$leftTypes = $leftType->getConstantScalarTypes();
1439:	$rightTypes = $rightType->getConstantScalarTypes();
1440:	$leftTypesCount = count($leftTypes);
1441:	$rightTypesCount = count($rightTypes);
1442:	if ($leftTypesCount > 0 && $rightTypesCount > 0) {
1443:	$resultTypes = [];
1444:	$generalize = $leftTypesCount * $rightTypesCount > self::CALCULATE_SCALARS_LIMIT;
1445:	if (!$generalize) {
1446:	foreach ($leftTypes as $leftTypeInner) {
1447:	foreach ($rightTypes as $rightTypeInner) {
1448:	$leftNumberType = $leftTypeInner->toNumber();
1449:	$rightNumberType = $rightTypeInner->toNumber();
1450:
1451:	if ($leftNumberType instanceof ErrorType \|\| $rightNumberType instanceof ErrorType) {
1452:	return new ErrorType();
1453:	}
1454:
1455:	if (!$leftNumberType instanceof ConstantScalarType \|\| !$rightNumberType instanceof ConstantScalarType) {
1456:	throw new ShouldNotHappenException();
1457:	}
1458:
1459:	$resultType = $this->getTypeFromValue($leftNumberType->getValue() + $rightNumberType->getValue());
1460:	$resultTypes[] = $resultType;
1461:	}
1462:	}
1463:
1464:	return TypeCombinator::union(...$resultTypes);
1465:	}
1466:
1467:	$leftType = $this->optimizeScalarType($leftType);
1468:	$rightType = $this->optimizeScalarType($rightType);
1469:	}
1470:
1471:	$leftConstantArrays = $leftType->getConstantArrays();
1472:	$rightConstantArrays = $rightType->getConstantArrays();
1473:
1474:	$leftCount = count($leftConstantArrays);
1475:	$rightCount = count($rightConstantArrays);
1476:	if ($leftCount > 0 && $rightCount > 0
1477:	&& ($leftCount + $rightCount < ConstantArrayTypeBuilder::ARRAY_COUNT_LIMIT)) {
1478:	$resultTypes = [];
1479:	foreach ($rightConstantArrays as $rightConstantArray) {
1480:	foreach ($leftConstantArrays as $leftConstantArray) {
1481:	$newArrayBuilder = ConstantArrayTypeBuilder::createFromConstantArray($rightConstantArray);
1482:	foreach ($leftConstantArray->getKeyTypes() as $i => $leftKeyType) {
1483:	$optional = $leftConstantArray->isOptionalKey($i);
1484:	$valueType = $leftConstantArray->getOffsetValueType($leftKeyType);
1485:	if (!$optional) {
1486:	if ($rightConstantArray->hasOffsetValueType($leftKeyType)->maybe()) {
1487:	$valueType = TypeCombinator::union($valueType, $rightConstantArray->getOffsetValueType($leftKeyType));
1488:	}
1489:	}
1490:	$newArrayBuilder->setOffsetValueType(
1491:	$leftKeyType,
1492:	$valueType,
1493:	$optional,
1494:	);
1495:	}
1496:	$resultTypes[] = $newArrayBuilder->getArray();
1497:	}
1498:	}
1499:	return TypeCombinator::union(...$resultTypes);
1500:	}
1501:
1502:	// `array{...} + array<TKey, TValue>` keeps the known keyed prefix and
1503:	// folds the right-hand side into an open `...<TKey, TValue>` tail. This
1504:	// only applies when the left arrays' sealedness is known (bleeding edge);
1505:	// otherwise the legacy behavior below is kept for backward compatibility.
1506:	if ($leftCount > 0 && $rightCount === 0
1507:	&& $leftCount < ConstantArrayTypeBuilder::ARRAY_COUNT_LIMIT
1508:	&& $rightType->isArray()->yes()) {
1509:	$allSealednessKnown = true;
1510:	foreach ($leftConstantArrays as $leftConstantArray) {
1511:	if ($leftConstantArray->isUnsealed()->maybe()) {
1512:	$allSealednessKnown = false;
1513:	break;
1514:	}
1515:	}
1516:
1517:	if ($allSealednessKnown) {
1518:	$rightKeyType = $rightType->getIterableKeyType();
1519:	$rightValueType = $rightType->getIterableValueType();
1520:	$resultTypes = [];
1521:	foreach ($leftConstantArrays as $leftConstantArray) {
1522:	$newArrayBuilder = ConstantArrayTypeBuilder::createFromConstantArray($leftConstantArray);
1523:	$existingUnsealed = $leftConstantArray->getUnsealedTypes();
1524:	if ($leftConstantArray->isUnsealed()->yes() && $existingUnsealed !== null) {
1525:	$newArrayBuilder->makeUnsealed(
1526:	TypeCombinator::union($existingUnsealed[0], $rightKeyType),
1527:	TypeCombinator::union($existingUnsealed[1], $rightValueType),
1528:	);
1529:	} else {
1530:	$newArrayBuilder->makeUnsealed($rightKeyType, $rightValueType);
1531:	}
1532:	$resultTypes[] = $newArrayBuilder->getArray();
1533:	}
1534:	return TypeCombinator::union(...$resultTypes);
1535:	}
1536:	}
1537:
1538:	$leftIsArray = $leftType->isArray();
1539:	$rightIsArray = $rightType->isArray();
1540:	if ($leftIsArray->yes() && $rightIsArray->yes()) {
1541:	if ($leftType->getIterableKeyType()->equals($rightType->getIterableKeyType())) {
1542:	// to preserve BenevolentUnionType
1543:	$keyType = $leftType->getIterableKeyType();
1544:	} else {
1545:	$keyTypes = [];
1546:	foreach ([
1547:	$leftType->getIterableKeyType(),
1548:	$rightType->getIterableKeyType(),
1549:	] as $keyType) {
1550:	$keyTypes[] = $keyType;
1551:	}
1552:	$keyType = TypeCombinator::union(...$keyTypes);
1553:	}
1554:
1555:	$leftIterableValueType = $leftType->getIterableValueType();
1556:	$arrayType = new ArrayType(
1557:	$keyType,
1558:	TypeCombinator::union($leftIterableValueType, $rightType->getIterableValueType()),
1559:	);
1560:
1561:	$accessories = [];
1562:	if ($leftCount > 0) {
1563:	// Use the first constant array as a reference to list potential offsets.
1564:	// We only need to check the first array because we're looking for offsets that exist in ALL arrays.
1565:	$constantArray = $leftConstantArrays[0];
1566:	foreach ($constantArray->getKeyTypes() as $offsetType) {
1567:	if (!$leftType->hasOffsetValueType($offsetType)->yes()) {
1568:	continue;
1569:	}
1570:
1571:	$valueType = $leftType->getOffsetValueType($offsetType);
1572:	$accessories[] = new HasOffsetValueType($offsetType, $valueType);
1573:	}
1574:	}
1575:
1576:	if ($rightCount > 0) {
1577:	// Use the first constant array as a reference to list potential offsets.
1578:	// We only need to check the first array because we're looking for offsets that exist in ALL arrays.
1579:	$constantArray = $rightConstantArrays[0];
1580:	foreach ($constantArray->getKeyTypes() as $offsetType) {
1581:	if (!$rightType->hasOffsetValueType($offsetType)->yes()) {
1582:	continue;
1583:	}
1584:
1585:	$valueType = TypeCombinator::union($leftIterableValueType, $rightType->getOffsetValueType($offsetType));
1586:	$accessories[] = new HasOffsetValueType($offsetType, $valueType);
1587:	}
1588:	}
1589:
1590:	if ($leftType->isIterableAtLeastOnce()->yes() \|\| $rightType->isIterableAtLeastOnce()->yes()) {
1591:	$accessories[] = new NonEmptyArrayType();
1592:	}
1593:	if ($leftType->isList()->yes() && $rightType->isList()->yes()) {
1594:	$accessories[] = new AccessoryArrayListType();
1595:	}
1596:
1597:	if (count($accessories) > 0) {
1598:	$arrayType = TypeCombinator::intersect($arrayType, ...$accessories);
1599:	}
1600:
1601:	return $arrayType;
1602:	}
1603:
1604:	if ($leftType instanceof MixedType && $rightType instanceof MixedType) {
1605:	if ($leftIsArray->no() && $rightIsArray->no()) {
1606:	return new BenevolentUnionType([
1607:	new FloatType(),
1608:	new IntegerType(),
1609:	]);
1610:	}
1611:	return new BenevolentUnionType([
1612:	new FloatType(),
1613:	new IntegerType(),
1614:	new ArrayType(new MixedType(), new MixedType()),
1615:	]);
1616:	}
1617:
1618:	if (
1619:	($leftIsArray->yes() && $rightIsArray->no())
1620:	\|\| ($leftIsArray->no() && $rightIsArray->yes())
1621:	) {
1622:	return new ErrorType();
1623:	}
1624:
1625:	if (
1626:	($leftIsArray->yes() && $rightIsArray->maybe())
1627:	\|\| ($leftIsArray->maybe() && $rightIsArray->yes())
1628:	) {
1629:	$resultType = new ArrayType(new MixedType(), new MixedType());
1630:	if ($leftType->isIterableAtLeastOnce()->yes() \|\| $rightType->isIterableAtLeastOnce()->yes()) {
1631:	return TypeCombinator::intersect($resultType, new NonEmptyArrayType());
1632:	}
1633:
1634:	return $resultType;
1635:	}
1636:
1637:	if ($leftIsArray->maybe() && $rightIsArray->maybe()) {
1638:	$plusable = new UnionType([
1639:	new StringType(),
1640:	new FloatType(),
1641:	new IntegerType(),
1642:	new ArrayType(new MixedType(), new MixedType()),
1643:	new BooleanType(),
1644:	]);
1645:
1646:	$plusableSuperTypeOfLeft = $plusable->isSuperTypeOf($leftType)->yes();
1647:	$plusableSuperTypeOfRight = $plusable->isSuperTypeOf($rightType)->yes();
1648:	if ($plusableSuperTypeOfLeft && $plusableSuperTypeOfRight) {
1649:	return TypeCombinator::union($leftType, $rightType);
1650:	}
1651:	if ($plusableSuperTypeOfLeft && $rightType instanceof MixedType) {
1652:	return $leftType;
1653:	}
1654:	if ($plusableSuperTypeOfRight && $leftType instanceof MixedType) {
1655:	return $rightType;
1656:	}
1657:	}
1658:
1659:	return $this->resolveCommonMath(new BinaryOp\Plus($left, $right), $leftType, $rightType);
1660:	}
1661:
1662:	/**
1663:	* @param callable(Expr): Type $getTypeCallback
1664:	*/
1665:	public function getMinusType(Expr $left, Expr $right, callable $getTypeCallback): Type
1666:	{
1667:	$leftType = $getTypeCallback($left);
1668:	$rightType = $getTypeCallback($right);
1669:
1670:	$leftTypes = $leftType->getConstantScalarTypes();
1671:	$rightTypes = $rightType->getConstantScalarTypes();
1672:	$leftTypesCount = count($leftTypes);
1673:	$rightTypesCount = count($rightTypes);
1674:	if ($leftTypesCount > 0 && $rightTypesCount > 0) {
1675:	$resultTypes = [];
1676:	$generalize = $leftTypesCount * $rightTypesCount > self::CALCULATE_SCALARS_LIMIT;
1677:	if (!$generalize) {
1678:	foreach ($leftTypes as $leftTypeInner) {
1679:	foreach ($rightTypes as $rightTypeInner) {
1680:	$leftNumberType = $leftTypeInner->toNumber();
1681:	$rightNumberType = $rightTypeInner->toNumber();
1682:
1683:	if ($leftNumberType instanceof ErrorType \|\| $rightNumberType instanceof ErrorType) {
1684:	return new ErrorType();
1685:	}
1686:
1687:	if (!$leftNumberType instanceof ConstantScalarType \|\| !$rightNumberType instanceof ConstantScalarType) {
1688:	throw new ShouldNotHappenException();
1689:	}
1690:
1691:	$resultType = $this->getTypeFromValue($leftNumberType->getValue() - $rightNumberType->getValue());
1692:	$resultTypes[] = $resultType;
1693:	}
1694:	}
1695:
1696:	return TypeCombinator::union(...$resultTypes);
1697:	}
1698:
1699:	$leftType = $this->optimizeScalarType($leftType);
1700:	$rightType = $this->optimizeScalarType($rightType);
1701:	}
1702:
1703:	return $this->resolveCommonMath(new BinaryOp\Minus($left, $right), $leftType, $rightType);
1704:	}
1705:
1706:	/**
1707:	* @param callable(Expr): Type $getTypeCallback
1708:	*/
1709:	public function getMulType(Expr $left, Expr $right, callable $getTypeCallback): Type
1710:	{
1711:	$leftType = $getTypeCallback($left);
1712:	$rightType = $getTypeCallback($right);
1713:
1714:	$leftTypes = $leftType->getConstantScalarTypes();
1715:	$rightTypes = $rightType->getConstantScalarTypes();
1716:	$leftTypesCount = count($leftTypes);
1717:	$rightTypesCount = count($rightTypes);
1718:	if ($leftTypesCount > 0 && $rightTypesCount > 0) {
1719:	$resultTypes = [];
1720:	$generalize = $leftTypesCount * $rightTypesCount > self::CALCULATE_SCALARS_LIMIT;
1721:	if (!$generalize) {
1722:	foreach ($leftTypes as $leftTypeInner) {
1723:	foreach ($rightTypes as $rightTypeInner) {
1724:	$leftNumberType = $leftTypeInner->toNumber();
1725:	$rightNumberType = $rightTypeInner->toNumber();
1726:
1727:	if ($leftNumberType instanceof ErrorType \|\| $rightNumberType instanceof ErrorType) {
1728:	return new ErrorType();
1729:	}
1730:
1731:	if (!$leftNumberType instanceof ConstantScalarType \|\| !$rightNumberType instanceof ConstantScalarType) {
1732:	throw new ShouldNotHappenException();
1733:	}
1734:
1735:	$resultType = $this->getTypeFromValue($leftNumberType->getValue() * $rightNumberType->getValue());
1736:	$resultTypes[] = $resultType;
1737:	}
1738:	}
1739:
1740:	return TypeCombinator::union(...$resultTypes);
1741:	}
1742:
1743:	$leftType = $this->optimizeScalarType($leftType);
1744:	$rightType = $this->optimizeScalarType($rightType);
1745:	}
1746:
1747:	$leftNumberType = $leftType->toNumber();
1748:	if ($leftNumberType instanceof ConstantIntegerType && $leftNumberType->getValue() === 0) {
1749:	if ($rightType->isFloat()->yes()) {
1750:	return new ConstantFloatType(0.0);
1751:	}
1752:	return new ConstantIntegerType(0);
1753:	}
1754:	$rightNumberType = $rightType->toNumber();
1755:	if ($rightNumberType instanceof ConstantIntegerType && $rightNumberType->getValue() === 0) {
1756:	if ($leftType->isFloat()->yes()) {
1757:	return new ConstantFloatType(0.0);
1758:	}
1759:	return new ConstantIntegerType(0);
1760:	}
1761:
1762:	return $this->resolveCommonMath(new BinaryOp\Mul($left, $right), $leftType, $rightType);
1763:	}
1764:
1765:	/**
1766:	* @param callable(Expr): Type $getTypeCallback
1767:	*/
1768:	public function getPowType(Expr $left, Expr $right, callable $getTypeCallback): Type
1769:	{
1770:	$leftType = $getTypeCallback($left);
1771:	$rightType = $getTypeCallback($right);
1772:
1773:	$extensionSpecified = $this->operatorTypeSpecifyingExtensionRegistry
1774:	->callOperatorTypeSpecifyingExtensions(new BinaryOp\Pow($left, $right), $leftType, $rightType);
1775:	if ($extensionSpecified !== null) {
1776:	return $extensionSpecified;
1777:	}
1778:
1779:	$exponentiatedTyped = $leftType->exponentiate($rightType);
1780:	if (!$exponentiatedTyped instanceof ErrorType) {
1781:	return $exponentiatedTyped;
1782:	}
1783:
1784:	return new ErrorType();
1785:	}
1786:
1787:	/**
1788:	* @param callable(Expr): Type $getTypeCallback
1789:	*/
1790:	public function getShiftLeftType(Expr $left, Expr $right, callable $getTypeCallback): Type
1791:	{
1792:	$leftType = $getTypeCallback($left);
1793:	$rightType = $getTypeCallback($right);
1794:
1795:	$specifiedTypes = $this->operatorTypeSpecifyingExtensionRegistry
1796:	->callOperatorTypeSpecifyingExtensions(new BinaryOp\ShiftLeft($left, $right), $leftType, $rightType);
1797:	if ($specifiedTypes !== null) {
1798:	return $specifiedTypes;
1799:	}
1800:
1801:	if ($leftType instanceof NeverType \|\| $rightType instanceof NeverType) {
1802:	return $this->getNeverType($leftType, $rightType);
1803:	}
1804:
1805:	$leftTypes = $leftType->getConstantScalarTypes();
1806:	$rightTypes = $rightType->getConstantScalarTypes();
1807:	$leftTypesCount = count($leftTypes);
1808:	$rightTypesCount = count($rightTypes);
1809:	if ($leftTypesCount > 0 && $rightTypesCount > 0) {
1810:	$resultTypes = [];
1811:	$generalize = $leftTypesCount * $rightTypesCount > self::CALCULATE_SCALARS_LIMIT;
1812:	if (!$generalize) {
1813:	foreach ($leftTypes as $leftTypeInner) {
1814:	foreach ($rightTypes as $rightTypeInner) {
1815:	$leftNumberType = $leftTypeInner->toNumber();
1816:	$rightNumberType = $rightTypeInner->toNumber();
1817:
1818:	if ($leftNumberType instanceof ErrorType \|\| $rightNumberType instanceof ErrorType) {
1819:	return new ErrorType();
1820:	}
1821:
1822:	if (!$leftNumberType instanceof ConstantScalarType \|\| !$rightNumberType instanceof ConstantScalarType) {
1823:	throw new ShouldNotHappenException();
1824:	}
1825:
1826:	if ($rightNumberType->getValue() < 0) {
1827:	return new ErrorType();
1828:	}
1829:
1830:	$resultType = $this->getTypeFromValue(intval($leftNumberType->getValue()) << intval($rightNumberType->getValue()));
1831:	$resultTypes[] = $resultType;
1832:	}
1833:	}
1834:
1835:	return TypeCombinator::union(...$resultTypes);
1836:	}
1837:
1838:	$leftType = $this->optimizeScalarType($leftType);
1839:	$rightType = $this->optimizeScalarType($rightType);
1840:	}
1841:
1842:	$leftNumberType = $leftType->toNumber();
1843:	$rightNumberType = $rightType->toNumber();
1844:
1845:	if ($leftNumberType instanceof ErrorType \|\| $rightNumberType instanceof ErrorType) {
1846:	return new ErrorType();
1847:	}
1848:
1849:	return $this->resolveCommonMath(new Expr\BinaryOp\ShiftLeft($left, $right), $leftType, $rightType);
1850:	}
1851:
1852:	/**
1853:	* @param callable(Expr): Type $getTypeCallback
1854:	*/
1855:	public function getShiftRightType(Expr $left, Expr $right, callable $getTypeCallback): Type
1856:	{
1857:	$leftType = $getTypeCallback($left);
1858:	$rightType = $getTypeCallback($right);
1859:
1860:	$specifiedTypes = $this->operatorTypeSpecifyingExtensionRegistry
1861:	->callOperatorTypeSpecifyingExtensions(new BinaryOp\ShiftRight($left, $right), $leftType, $rightType);
1862:	if ($specifiedTypes !== null) {
1863:	return $specifiedTypes;
1864:	}
1865:
1866:	if ($leftType instanceof NeverType \|\| $rightType instanceof NeverType) {
1867:	return $this->getNeverType($leftType, $rightType);
1868:	}
1869:
1870:	$leftTypes = $leftType->getConstantScalarTypes();
1871:	$rightTypes = $rightType->getConstantScalarTypes();
1872:	$leftTypesCount = count($leftTypes);
1873:	$rightTypesCount = count($rightTypes);
1874:	if ($leftTypesCount > 0 && $rightTypesCount > 0) {
1875:	$resultTypes = [];
1876:	$generalize = $leftTypesCount * $rightTypesCount > self::CALCULATE_SCALARS_LIMIT;
1877:	if (!$generalize) {
1878:	foreach ($leftTypes as $leftTypeInner) {
1879:	foreach ($rightTypes as $rightTypeInner) {
1880:	$leftNumberType = $leftTypeInner->toNumber();
1881:	$rightNumberType = $rightTypeInner->toNumber();
1882:
1883:	if ($leftNumberType instanceof ErrorType \|\| $rightNumberType instanceof ErrorType) {
1884:	return new ErrorType();
1885:	}
1886:
1887:	if (!$leftNumberType instanceof ConstantScalarType \|\| !$rightNumberType instanceof ConstantScalarType) {
1888:	throw new ShouldNotHappenException();
1889:	}
1890:
1891:	if ($rightNumberType->getValue() < 0) {
1892:	return new ErrorType();
1893:	}
1894:
1895:	$resultType = $this->getTypeFromValue(intval($leftNumberType->getValue()) >> intval($rightNumberType->getValue()));
1896:	$resultTypes[] = $resultType;
1897:	}
1898:	}
1899:
1900:	return TypeCombinator::union(...$resultTypes);
1901:	}
1902:
1903:	$leftType = $this->optimizeScalarType($leftType);
1904:	$rightType = $this->optimizeScalarType($rightType);
1905:	}
1906:
1907:	$leftNumberType = $leftType->toNumber();
1908:	$rightNumberType = $rightType->toNumber();
1909:
1910:	if ($leftNumberType instanceof ErrorType \|\| $rightNumberType instanceof ErrorType) {
1911:	return new ErrorType();
1912:	}
1913:
1914:	return $this->resolveCommonMath(new Expr\BinaryOp\ShiftRight($left, $right), $leftType, $rightType);
1915:	}
1916:
1917:	private function optimizeScalarType(Type $type): Type
1918:	{
1919:	$types = [];
1920:	if ($type->isInteger()->yes()) {
1921:	$types[] = new IntegerType();
1922:	}
1923:	if ($type->isString()->yes()) {
1924:	$types[] = new StringType();
1925:	}
1926:	if ($type->isFloat()->yes()) {
1927:	$types[] = new FloatType();
1928:	}
1929:	if ($type->isNull()->yes()) {
1930:	$types[] = new NullType();
1931:	}
1932:
1933:	if (count($types) === 0) {
1934:	return new ErrorType();
1935:	}
1936:
1937:	if (count($types) === 1) {
1938:	return $types[0];
1939:	}
1940:
1941:	return new UnionType($types);
1942:	}
1943:
1944:	/**
1945:	* @return TypeResult<BooleanType>
1946:	*/
1947:	public function resolveIdenticalType(Type $leftType, Type $rightType): TypeResult
1948:	{
1949:	if ($leftType instanceof NeverType \|\| $rightType instanceof NeverType) {
1950:	return new TypeResult(new ConstantBooleanType(false), []);
1951:	}
1952:
1953:	if ($leftType instanceof ConstantScalarType && $rightType instanceof ConstantScalarType) {
1954:	return new TypeResult(new ConstantBooleanType($leftType->getValue() === $rightType->getValue()), []);
1955:	}
1956:
1957:	$leftTypeFiniteTypes = $leftType->getFiniteTypes();
1958:	$rightTypeFiniteType = $rightType->getFiniteTypes();
1959:	if (count($leftTypeFiniteTypes) === 1 && count($rightTypeFiniteType) === 1) {
1960:	return new TypeResult(new ConstantBooleanType($leftTypeFiniteTypes[0]->equals($rightTypeFiniteType[0])), []);
1961:	}
1962:
1963:	$leftIsSuperTypeOfRight = $leftType->isSuperTypeOf($rightType);
1964:	$rightIsSuperTypeOfLeft = $rightType->isSuperTypeOf($leftType);
1965:	if ($leftIsSuperTypeOfRight->no() && $rightIsSuperTypeOfLeft->no()) {
1966:	return new TypeResult(new ConstantBooleanType(false), array_merge($leftIsSuperTypeOfRight->getReasons(), $rightIsSuperTypeOfLeft->getReasons()));
1967:	}
1968:
1969:	if ($leftType instanceof ConstantArrayType && $rightType instanceof ConstantArrayType) {
1970:	return $this->resolveConstantArrayTypeComparison($leftType, $rightType, fn ($leftValueType, $rightValueType): TypeResult => $this->resolveIdenticalType($leftValueType, $rightValueType));
1971:	}
1972:
1973:	return new TypeResult(new BooleanType(), []);
1974:	}
1975:
1976:	/**
1977:	* @return TypeResult<BooleanType>
1978:	*/
1979:	public function resolveEqualType(Type $leftType, Type $rightType): TypeResult
1980:	{
1981:	if ($leftType instanceof NeverType \|\| $rightType instanceof NeverType) {
1982:	return new TypeResult(new ConstantBooleanType(false), []);
1983:	}
1984:
1985:	if (
1986:	($leftType->isEnum()->yes() && $rightType->isTrue()->no())
1987:	\|\| ($rightType->isEnum()->yes() && $leftType->isTrue()->no())
1988:	) {
1989:	return $this->resolveIdenticalType($leftType, $rightType);
1990:	}
1991:
1992:	if ($leftType instanceof ConstantArrayType && $rightType instanceof ConstantArrayType) {
1993:	return $this->resolveConstantArrayTypeComparison($leftType, $rightType, fn ($leftValueType, $rightValueType): TypeResult => $this->resolveEqualType($leftValueType, $rightValueType));
1994:	}
1995:
1996:	return new TypeResult($leftType->looseCompare($rightType, $this->phpVersion), []);
1997:	}
1998:
1999:	/**
2000:	* @param callable(Type, Type): TypeResult<BooleanType> $valueComparisonCallback
2001:	* @return TypeResult<BooleanType>
2002:	*/
2003:	private function resolveConstantArrayTypeComparison(ConstantArrayType $leftType, ConstantArrayType $rightType, callable $valueComparisonCallback): TypeResult
2004:	{
2005:	$leftKeyTypes = $leftType->getKeyTypes();
2006:	$rightKeyTypes = $rightType->getKeyTypes();
2007:	$leftValueTypes = $leftType->getValueTypes();
2008:	$rightValueTypes = $rightType->getValueTypes();
2009:
2010:	$resultType = new ConstantBooleanType(true);
2011:
2012:	foreach ($leftKeyTypes as $i => $leftKeyType) {
2013:	$leftOptional = $leftType->isOptionalKey($i);
2014:	if ($leftOptional) {
2015:	$resultType = new BooleanType();
2016:	}
2017:
2018:	if (count($rightKeyTypes) === 0) {
2019:	if (!$leftOptional) {
2020:	return new TypeResult(new ConstantBooleanType(false), []);
2021:	}
2022:	continue;
2023:	}
2024:
2025:	$found = false;
2026:	foreach ($rightKeyTypes as $j => $rightKeyType) {
2027:	unset($rightKeyTypes[$j]);
2028:
2029:	if ($leftKeyType->equals($rightKeyType)) {
2030:	$found = true;
2031:	break;
2032:	} elseif (!$rightType->isOptionalKey($j)) {
2033:	return new TypeResult(new ConstantBooleanType(false), []);
2034:	}
2035:	}
2036:
2037:	if (!$found) {
2038:	if (!$leftOptional) {
2039:	return new TypeResult(new ConstantBooleanType(false), []);
2040:	}
2041:	continue;
2042:	}
2043:
2044:	if (!isset($j)) {
2045:	throw new ShouldNotHappenException();
2046:	}
2047:
2048:	$rightOptional = $rightType->isOptionalKey($j);
2049:	if ($rightOptional) {
2050:	$resultType = new BooleanType();
2051:	if ($leftOptional) {
2052:	continue;
2053:	}
2054:	}
2055:
2056:	$leftIdenticalToRightResult = $valueComparisonCallback($leftValueTypes[$i], $rightValueTypes[$j]);
2057:	$leftIdenticalToRight = $leftIdenticalToRightResult->type;
2058:	if ($leftIdenticalToRight->isFalse()->yes()) {
2059:	return $leftIdenticalToRightResult;
2060:	}
2061:	$resultType = TypeCombinator::union($resultType, $leftIdenticalToRight);
2062:	}
2063:
2064:	foreach (array_keys($rightKeyTypes) as $j) {
2065:	if (!$rightType->isOptionalKey($j)) {
2066:	return new TypeResult(new ConstantBooleanType(false), []);
2067:	}
2068:	$resultType = new BooleanType();
2069:	}
2070:
2071:	return new TypeResult($resultType->toBoolean(), []);
2072:	}
2073:
2074:	/**
2075:	* @param BinaryOp\Plus\|BinaryOp\Minus\|BinaryOp\Mul\|BinaryOp\Div\|BinaryOp\ShiftLeft\|BinaryOp\ShiftRight $expr
2076:	*/
2077:	private function resolveCommonMath(Expr\BinaryOp $expr, Type $leftType, Type $rightType): Type
2078:	{
2079:	$specifiedTypes = $this->operatorTypeSpecifyingExtensionRegistry
2080:	->callOperatorTypeSpecifyingExtensions($expr, $leftType, $rightType);
2081:	if ($specifiedTypes !== null) {
2082:	return $specifiedTypes;
2083:	}
2084:
2085:	$types = TypeCombinator::union($leftType, $rightType);
2086:	$leftNumberType = $leftType->toNumber();
2087:	$rightNumberType = $rightType->toNumber();
2088:
2089:	if (
2090:	!$types instanceof MixedType
2091:	&& (
2092:	$rightNumberType instanceof IntegerRangeType
2093:	\|\| $rightNumberType instanceof ConstantIntegerType
2094:	\|\| $rightNumberType instanceof UnionType
2095:	)
2096:	) {
2097:	if ($leftNumberType instanceof IntegerRangeType \|\| $leftNumberType instanceof ConstantIntegerType) {
2098:	return $this->integerRangeMath(
2099:	$leftNumberType,
2100:	$expr,
2101:	$rightNumberType,
2102:	);
2103:	} elseif ($leftNumberType instanceof UnionType) {
2104:	$unionParts = [];
2105:
2106:	foreach ($leftNumberType->getTypes() as $type) {
2107:	$numberType = $type->toNumber();
2108:	if ($numberType instanceof IntegerRangeType \|\| $numberType instanceof ConstantIntegerType) {
2109:	$unionParts[] = $this->integerRangeMath($numberType, $expr, $rightNumberType);
2110:	} else {
2111:	$unionParts[] = $numberType;
2112:	}
2113:	}
2114:
2115:	$union = TypeCombinator::union(...$unionParts);
2116:	if ($leftNumberType instanceof BenevolentUnionType) {
2117:	return TypeUtils::toBenevolentUnion($union)->toNumber();
2118:	}
2119:
2120:	return $union->toNumber();
2121:	}
2122:	}
2123:
2124:	if (
2125:	$leftType->isArray()->yes()
2126:	\|\| $rightType->isArray()->yes()
2127:	\|\| $types->isArray()->yes()
2128:	) {
2129:	return new ErrorType();
2130:	}
2131:
2132:	if ($leftNumberType instanceof ErrorType \|\| $rightNumberType instanceof ErrorType) {
2133:	return new ErrorType();
2134:	}
2135:	if ($leftNumberType instanceof NeverType \|\| $rightNumberType instanceof NeverType) {
2136:	return $this->getNeverType($leftNumberType, $rightNumberType);
2137:	}
2138:
2139:	if (
2140:	$leftNumberType->isFloat()->yes()
2141:	\|\| $rightNumberType->isFloat()->yes()
2142:	) {
2143:	if ($expr instanceof Expr\BinaryOp\ShiftLeft \|\| $expr instanceof Expr\BinaryOp\ShiftRight) {
2144:	return new IntegerType();
2145:	}
2146:	return new FloatType();
2147:	}
2148:
2149:	$resultType = TypeCombinator::union($leftNumberType, $rightNumberType);
2150:	if ($expr instanceof Expr\BinaryOp\Div) {
2151:	if ($types instanceof MixedType \|\| $resultType->isInteger()->yes()) {
2152:	return new BenevolentUnionType([new IntegerType(), new FloatType()]);
2153:	}
2154:
2155:	return new UnionType([new IntegerType(), new FloatType()]);
2156:	}
2157:
2158:	if ($types instanceof MixedType
2159:	\|\| $leftType instanceof BenevolentUnionType
2160:	\|\| $rightType instanceof BenevolentUnionType
2161:	) {
2162:	return TypeUtils::toBenevolentUnion($resultType);
2163:	}
2164:
2165:	return $resultType;
2166:	}
2167:
2168:	/**
2169:	* @param ConstantIntegerType\|IntegerRangeType $range
2170:	* @param BinaryOp\Div\|BinaryOp\Minus\|BinaryOp\Mul\|BinaryOp\Plus\|BinaryOp\ShiftLeft\|BinaryOp\ShiftRight $node
2171:	*/
2172:	private function integerRangeMath(Type $range, BinaryOp $node, Type $operand): Type
2173:	{
2174:	if ($range instanceof IntegerRangeType) {
2175:	$rangeMin = $range->getMin();
2176:	$rangeMax = $range->getMax();
2177:	} else {
2178:	$rangeMin = $range->getValue();
2179:	$rangeMax = $rangeMin;
2180:	}
2181:
2182:	if ($operand instanceof UnionType) {
2183:
2184:	$unionParts = [];
2185:
2186:	foreach ($operand->getTypes() as $type) {
2187:	$numberType = $type->toNumber();
2188:	if ($numberType instanceof IntegerRangeType \|\| $numberType instanceof ConstantIntegerType) {
2189:	$unionParts[] = $this->integerRangeMath($range, $node, $numberType);
2190:	} else {
2191:	$unionParts[] = $type->toNumber();
2192:	}
2193:	}
2194:
2195:	$union = TypeCombinator::union(...$unionParts);
2196:	if ($operand instanceof BenevolentUnionType) {
2197:	return TypeUtils::toBenevolentUnion($union)->toNumber();
2198:	}
2199:
2200:	return $union->toNumber();
2201:	}
2202:
2203:	$operand = $operand->toNumber();
2204:	if ($operand instanceof IntegerRangeType) {
2205:	$operandMin = $operand->getMin();
2206:	$operandMax = $operand->getMax();
2207:	} elseif ($operand instanceof ConstantIntegerType) {
2208:	$operandMin = $operand->getValue();
2209:	$operandMax = $operand->getValue();
2210:	} else {
2211:	return $operand;
2212:	}
2213:
2214:	if ($node instanceof BinaryOp\Plus) {
2215:	if ($operand instanceof ConstantIntegerType) {
2216:	/** @var int\|float\|null $min */
2217:	$min = $rangeMin !== null ? $rangeMin + $operand->getValue() : null;
2218:
2219:	/** @var int\|float\|null $max */
2220:	$max = $rangeMax !== null ? $rangeMax + $operand->getValue() : null;
2221:	} else {
2222:	/** @var int\|float\|null $min */
2223:	$min = $rangeMin !== null && $operand->getMin() !== null ? $rangeMin + $operand->getMin() : null;
2224:
2225:	/** @var int\|float\|null $max */
2226:	$max = $rangeMax !== null && $operand->getMax() !== null ? $rangeMax + $operand->getMax() : null;
2227:	}
2228:	} elseif ($node instanceof BinaryOp\Minus) {
2229:	if ($operand instanceof ConstantIntegerType) {
2230:	/** @var int\|float\|null $min */
2231:	$min = $rangeMin !== null ? $rangeMin - $operand->getValue() : null;
2232:
2233:	/** @var int\|float\|null $max */
2234:	$max = $rangeMax !== null ? $rangeMax - $operand->getValue() : null;
2235:	} else {
2236:	if ($rangeMin === $rangeMax && $rangeMin !== null
2237:	&& ($operand->getMin() === null \|\| $operand->getMax() === null)) {
2238:	$min = null;
2239:	$max = $rangeMin;
2240:	} else {
2241:	if ($operand->getMin() === null) {
2242:	$min = null;
2243:	} elseif ($rangeMin !== null) {
2244:	if ($operand->getMax() !== null) {
2245:	/** @var int\|float $min */
2246:	$min = $rangeMin - $operand->getMax();
2247:	} else {
2248:	/** @var int\|float $min */
2249:	$min = $rangeMin - $operand->getMin();
2250:	}
2251:	} else {
2252:	$min = null;
2253:	}
2254:
2255:	if ($operand->getMax() === null) {
2256:	$min = null;
2257:	$max = null;
2258:	} elseif ($rangeMax !== null) {
2259:	if ($rangeMin !== null && $operand->getMin() === null) {
2260:	/** @var int\|float $min */
2261:	$min = $rangeMin - $operand->getMax();
2262:	$max = null;
2263:	} elseif ($operand->getMin() !== null) {
2264:	/** @var int\|float $max */
2265:	$max = $rangeMax - $operand->getMin();
2266:	} else {
2267:	$max = null;
2268:	}
2269:	} else {
2270:	$max = null;
2271:	}
2272:
2273:	if ($min !== null && $max !== null && $min > $max) {
2274:	[$min, $max] = [$max, $min];
2275:	}
2276:	}
2277:	}
2278:	} elseif ($node instanceof Expr\BinaryOp\Mul) {
2279:	$min1 = $rangeMin === 0 \|\| $operandMin === 0 ? 0 : ($rangeMin ?? -INF) * ($operandMin ?? -INF);
2280:	$min2 = $rangeMin === 0 \|\| $operandMax === 0 ? 0 : ($rangeMin ?? -INF) * ($operandMax ?? INF);
2281:	$max1 = $rangeMax === 0 \|\| $operandMin === 0 ? 0 : ($rangeMax ?? INF) * ($operandMin ?? -INF);
2282:	$max2 = $rangeMax === 0 \|\| $operandMax === 0 ? 0 : ($rangeMax ?? INF) * ($operandMax ?? INF);
2283:
2284:	$min = min($min1, $min2, $max1, $max2);
2285:	$max = max($min1, $min2, $max1, $max2);
2286:
2287:	if (!is_finite($min)) {
2288:	$min = null;
2289:	}
2290:	if (!is_finite($max)) {
2291:	$max = null;
2292:	}
2293:	} elseif ($node instanceof Expr\BinaryOp\Div) {
2294:	if ($operand instanceof ConstantIntegerType) {
2295:	$min = $rangeMin !== null && $operand->getValue() !== 0 ? $rangeMin / $operand->getValue() : null;
2296:	$max = $rangeMax !== null && $operand->getValue() !== 0 ? $rangeMax / $operand->getValue() : null;
2297:	} else {
2298:	// Avoid division by zero when looking for the min and the max by using the closest int
2299:	$operandMin = $operandMin !== 0 ? $operandMin : 1;
2300:	$operandMax = $operandMax !== 0 ? $operandMax : -1;
2301:
2302:	if (
2303:	($operandMin < 0 \|\| $operandMin === null)
2304:	&& ($operandMax > 0 \|\| $operandMax === null)
2305:	) {
2306:	$negativeOperand = IntegerRangeType::fromInterval($operandMin, 0);
2307:	assert($negativeOperand instanceof IntegerRangeType);
2308:	$positiveOperand = IntegerRangeType::fromInterval(0, $operandMax);
2309:	assert($positiveOperand instanceof IntegerRangeType);
2310:
2311:	$result = TypeCombinator::union(
2312:	$this->integerRangeMath($range, $node, $negativeOperand),
2313:	$this->integerRangeMath($range, $node, $positiveOperand),
2314:	)->toNumber();
2315:
2316:	if ($result->equals(new UnionType([new IntegerType(), new FloatType()]))) {
2317:	return new BenevolentUnionType([new IntegerType(), new FloatType()]);
2318:	}
2319:
2320:	return $result;
2321:	}
2322:	if (
2323:	($rangeMin < 0 \|\| $rangeMin === null)
2324:	&& ($rangeMax > 0 \|\| $rangeMax === null)
2325:	) {
2326:	$negativeRange = IntegerRangeType::fromInterval($rangeMin, 0);
2327:	assert($negativeRange instanceof IntegerRangeType);
2328:	$positiveRange = IntegerRangeType::fromInterval(0, $rangeMax);
2329:	assert($positiveRange instanceof IntegerRangeType);
2330:
2331:	$result = TypeCombinator::union(
2332:	$this->integerRangeMath($negativeRange, $node, $operand),
2333:	$this->integerRangeMath($positiveRange, $node, $operand),
2334:	)->toNumber();
2335:
2336:	if ($result->equals(new UnionType([new IntegerType(), new FloatType()]))) {
2337:	return new BenevolentUnionType([new IntegerType(), new FloatType()]);
2338:	}
2339:
2340:	return $result;
2341:	}
2342:
2343:	$rangeMinSign = ($rangeMin ?? -INF) <=> 0;
2344:	$rangeMaxSign = ($rangeMax ?? INF) <=> 0;
2345:
2346:	$min1 = $operandMin !== null ? ($rangeMin ?? -INF) / $operandMin : $rangeMinSign * -0.1;
2347:	$min2 = $operandMax !== null ? ($rangeMin ?? -INF) / $operandMax : $rangeMinSign * 0.1;
2348:	$max1 = $operandMin !== null ? ($rangeMax ?? INF) / $operandMin : $rangeMaxSign * -0.1;
2349:	$max2 = $operandMax !== null ? ($rangeMax ?? INF) / $operandMax : $rangeMaxSign * 0.1;
2350:
2351:	$min = min($min1, $min2, $max1, $max2);
2352:	$max = max($min1, $min2, $max1, $max2);
2353:
2354:	if ($min === -INF) {
2355:	$min = null;
2356:	}
2357:	if ($max === INF) {
2358:	$max = null;
2359:	}
2360:	}
2361:
2362:	if ($min !== null && $max !== null && $min > $max) {
2363:	[$min, $max] = [$max, $min];
2364:	}
2365:
2366:	if (is_float($min)) {
2367:	$min = (int) ceil($min);
2368:	}
2369:	if (is_float($max)) {
2370:	$max = (int) floor($max);
2371:	}
2372:
2373:	// invert maximas on division with negative constants
2374:	if ((($range instanceof ConstantIntegerType && $range->getValue() < 0)
2375:	\|\| ($operand instanceof ConstantIntegerType && $operand->getValue() < 0))
2376:	&& ($min === null \|\| $max === null)) {
2377:	[$min, $max] = [$max, $min];
2378:	}
2379:
2380:	if ($min === null && $max === null) {
2381:	return new BenevolentUnionType([new IntegerType(), new FloatType()]);
2382:	}
2383:
2384:	return TypeCombinator::union(IntegerRangeType::fromInterval($min, $max), new FloatType());
2385:	} elseif ($node instanceof Expr\BinaryOp\ShiftLeft) {
2386:	if (!$operand instanceof ConstantIntegerType) {
2387:	return new IntegerType();
2388:	}
2389:	if ($operand->getValue() < 0) {
2390:	return new ErrorType();
2391:	}
2392:	$min = $rangeMin !== null ? intval($rangeMin) << $operand->getValue() : null;
2393:	$max = $rangeMax !== null ? intval($rangeMax) << $operand->getValue() : null;
2394:	} elseif ($node instanceof Expr\BinaryOp\ShiftRight) {
2395:	if (!$operand instanceof ConstantIntegerType) {
2396:	return new IntegerType();
2397:	}
2398:	if ($operand->getValue() < 0) {
2399:	return new ErrorType();
2400:	}
2401:	$min = $rangeMin !== null ? intval($rangeMin) >> $operand->getValue() : null;
2402:	$max = $rangeMax !== null ? intval($rangeMax) >> $operand->getValue() : null;
2403:	} else {
2404:	throw new ShouldNotHappenException();
2405:	}
2406:
2407:	if (is_float($min)) {
2408:	$min = null;
2409:	}
2410:	if (is_float($max)) {
2411:	$max = null;
2412:	}
2413:
2414:	return IntegerRangeType::fromInterval($min, $max);
2415:	}
2416:
2417:	/**
2418:	* @param callable(Expr): Type $getTypeCallback
2419:	*/
2420:	public function getClassConstFetchTypeByReflection(Name\|Expr $class, string $constantName, ?ClassReflection $classReflection, callable $getTypeCallback): Type
2421:	{
2422:	$isObject = false;
2423:	if ($class instanceof Name) {
2424:	$constantClass = (string) $class;
2425:	$constantClassType = new ObjectType($constantClass);
2426:	$namesToResolve = [
2427:	'self',
2428:	'parent',
2429:	];
2430:	if ($classReflection !== null) {
2431:	if ($classReflection->isFinal()) {
2432:	$namesToResolve[] = 'static';
2433:	} elseif (strtolower($constantClass) === 'static') {
2434:	if (strtolower($constantName) === 'class') {
2435:	return new GenericClassStringType(new StaticType($classReflection));
2436:	}
2437:
2438:	$namesToResolve[] = 'static';
2439:	$isObject = true;
2440:	}
2441:	}
2442:	if (in_array(strtolower($constantClass), $namesToResolve, true)) {
2443:	$resolvedName = $this->resolveName($class, $classReflection);
2444:	if (strtolower($resolvedName) === 'parent' && strtolower($constantName) === 'class') {
2445:	return new ClassStringType();
2446:	}
2447:	$constantClassType = $this->resolveTypeByName($class, $classReflection);
2448:	}
2449:
2450:	if (strtolower($constantName) === 'class') {
2451:	return new ConstantStringType($constantClassType->getClassName(), true);
2452:	}
2453:	} elseif ($class instanceof String_ && strtolower($constantName) === 'class') {
2454:	return new ConstantStringType($class->value, true);
2455:	} else {
2456:	$constantClassType = $getTypeCallback($class);
2457:	$isObject = true;
2458:	}
2459:
2460:	if (strtolower($constantName) === 'class') {
2461:	return $constantClassType->toClassConstantType($this->getReflectionProvider());
2462:	}
2463:
2464:	if ($constantClassType->isClassString()->yes()) {
2465:	if ($constantClassType->isConstantScalarValue()->yes()) {
2466:	$isObject = false;
2467:	}
2468:	$constantClassType = $constantClassType->getClassStringObjectType();
2469:	}
2470:
2471:	$types = [];
2472:	foreach ($constantClassType->getObjectClassNames() as $referencedClass) {
2473:	if (!$this->getReflectionProvider()->hasClass($referencedClass)) {
2474:	continue;
2475:	}
2476:
2477:	$constantClassReflection = $this->getReflectionProvider()->getClass($referencedClass);
2478:	if (!$constantClassReflection->hasConstant($constantName)) {
2479:	if ($constantClassReflection->getName() === 'Attribute' && $constantName === 'TARGET_CONSTANT') {
2480:	return new ConstantIntegerType(1 << 16);
2481:	}
2482:	continue;
2483:	}
2484:
2485:	if ($constantClassReflection->isEnum() && $constantClassReflection->hasEnumCase($constantName)) {
2486:	$types[] = new EnumCaseObjectType($constantClassReflection->getName(), $constantName);
2487:	continue;
2488:	}
2489:
2490:	$resolvingName = sprintf('%s::%s', $constantClassReflection->getName(), $constantName);
2491:	if (array_key_exists($resolvingName, $this->currentlyResolvingClassConstant)) {
2492:	$types[] = new MixedType();
2493:	continue;
2494:	}
2495:
2496:	if (!$isObject && array_key_exists($resolvingName, $this->classConstantValueTypeCache)) {
2497:	$types[] = $this->classConstantValueTypeCache[$resolvingName];
2498:	continue;
2499:	}
2500:
2501:	$this->currentlyResolvingClassConstant[$resolvingName] = true;
2502:
2503:	if (!$isObject) {
2504:	$reflectionConstant = $constantClassReflection->getNativeReflection()->getReflectionConstant($constantName);
2505:	if ($reflectionConstant === false) {
2506:	unset($this->currentlyResolvingClassConstant[$resolvingName]);
2507:	continue;
2508:	}
2509:	$reflectionConstantDeclaringClass = $reflectionConstant->getDeclaringClass();
2510:	$constantType = $this->getType($reflectionConstant->getValueExpression(), InitializerExprContext::fromClass($reflectionConstantDeclaringClass->getName(), $reflectionConstantDeclaringClass->getFileName() ?: null));
2511:	$nativeType = null;
2512:	if ($reflectionConstant->getType() !== null) {
2513:	$nativeType = TypehintHelper::decideTypeFromReflection($reflectionConstant->getType(), selfClass: $constantClassReflection);
2514:	}
2515:	$resolvedType = $this->constantResolver->resolveClassConstantType(
2516:	$constantClassReflection->getName(),
2517:	$constantName,
2518:	$constantType,
2519:	$nativeType,
2520:	$constantClassReflection->getConstantPhpDocType($constantName),
2521:	);
2522:	$this->classConstantValueTypeCache[$resolvingName] = $resolvedType;
2523:	$types[] = $resolvedType;
2524:	unset($this->currentlyResolvingClassConstant[$resolvingName]);
2525:	continue;
2526:	}
2527:
2528:	$constantReflection = $constantClassReflection->getConstant($constantName);
2529:	if (
2530:	!$constantClassReflection->isFinal()
2531:	&& !$constantReflection->isFinal()
2532:	&& !$constantReflection->hasPhpDocType()
2533:	&& !$constantReflection->hasNativeType()
2534:	) {
2535:	unset($this->currentlyResolvingClassConstant[$resolvingName]);
2536:	return new MixedType();
2537:	}
2538:
2539:	if (!$constantClassReflection->isFinal()) {
2540:	$constantType = $constantReflection->getValueType();
2541:	} else {
2542:	$constantType = $this->getType($constantReflection->getValueExpr(), InitializerExprContext::fromClassReflection($constantReflection->getDeclaringClass()));
2543:	}
2544:
2545:	$nativeType = $constantReflection->getNativeType();
2546:	$constantType = $this->constantResolver->resolveClassConstantType(
2547:	$constantClassReflection->getName(),
2548:	$constantName,
2549:	$constantType,
2550:	$nativeType,
2551:	$constantClassReflection->getConstantPhpDocType($constantName),
2552:	);
2553:	unset($this->currentlyResolvingClassConstant[$resolvingName]);
2554:	$types[] = $constantType;
2555:	}
2556:
2557:	if (count($types) > 0) {
2558:	return TypeCombinator::union(...$types);
2559:	}
2560:
2561:	if (!$constantClassType->hasConstant($constantName)->yes()) {
2562:	return new ErrorType();
2563:	}
2564:
2565:	return $constantClassType->getConstant($constantName)->getValueType();
2566:	}
2567:
2568:	/**
2569:	* @param callable(Expr): Type $getTypeCallback
2570:	*/
2571:	public function getClassConstFetchType(Name\|Expr $class, string $constantName, ?string $className, callable $getTypeCallback): Type
2572:	{
2573:	$classReflection = null;
2574:	if ($className !== null && $this->getReflectionProvider()->hasClass($className)) {
2575:	$classReflection = $this->getReflectionProvider()->getClass($className);
2576:	}
2577:
2578:	return $this->getClassConstFetchTypeByReflection($class, $constantName, $classReflection, $getTypeCallback);
2579:	}
2580:
2581:	/**
2582:	* @param callable(Expr): Type $getTypeCallback
2583:	*/
2584:	public function getUnaryPlusType(Expr $expr, callable $getTypeCallback): Type
2585:	{
2586:	$type = $getTypeCallback($expr);
2587:
2588:	$specifiedTypes = $this->unaryOperatorTypeSpecifyingExtensionRegistry
2589:	->callUnaryOperatorTypeSpecifyingExtensions('+', $type);
2590:	if ($specifiedTypes !== null) {
2591:	return $specifiedTypes;
2592:	}
2593:
2594:	return $type->toNumber();
2595:	}
2596:
2597:	/**
2598:	* @param callable(Expr): Type $getTypeCallback
2599:	*/
2600:	public function getUnaryMinusType(Expr $expr, callable $getTypeCallback): Type
2601:	{
2602:	$type = $getTypeCallback($expr);
2603:
2604:	$specifiedTypes = $this->unaryOperatorTypeSpecifyingExtensionRegistry
2605:	->callUnaryOperatorTypeSpecifyingExtensions('-', $type);
2606:	if ($specifiedTypes !== null) {
2607:	return $specifiedTypes;
2608:	}
2609:
2610:	$type = $this->getUnaryMinusTypeFromType($expr, $type);
2611:	if ($type instanceof IntegerRangeType) {
2612:	return $getTypeCallback(new Expr\BinaryOp\Mul($expr, new Int_(-1)));
2613:	}
2614:
2615:	return $type;
2616:	}
2617:
2618:	public function getUnaryMinusTypeFromType(Expr $expr, Type $type): Type
2619:	{
2620:	$type = $type->toNumber();
2621:	$scalarValues = $type->getConstantScalarValues();
2622:
2623:	if (count($scalarValues) > 0) {
2624:	$newTypes = [];
2625:	foreach ($scalarValues as $scalarValue) {
2626:	if (is_int($scalarValue)) {
2627:	/** @var int\|float $newValue */
2628:	$newValue = -$scalarValue;
2629:	if (!is_int($newValue)) {
2630:	// Negating the smallest integer overflows into a float.
2631:	$newTypes[] = new ConstantFloatType($newValue);
2632:	continue;
2633:	}
2634:	$newTypes[] = new ConstantIntegerType($newValue);
2635:	} elseif (is_float($scalarValue)) {
2636:	$newTypes[] = new ConstantFloatType(-$scalarValue);
2637:	}
2638:	}
2639:
2640:	return TypeCombinator::union(...$newTypes);
2641:	}
2642:
2643:	return $type;
2644:	}
2645:
2646:	/**
2647:	* @param callable(Expr): Type $getTypeCallback
2648:	*/
2649:	public function getBitwiseNotType(Expr $expr, callable $getTypeCallback): Type
2650:	{
2651:	$exprType = $getTypeCallback($expr);
2652:
2653:	$specifiedTypes = $this->unaryOperatorTypeSpecifyingExtensionRegistry
2654:	->callUnaryOperatorTypeSpecifyingExtensions('~', $exprType);
2655:	if ($specifiedTypes !== null) {
2656:	return $specifiedTypes;
2657:	}
2658:
2659:	return $this->getBitwiseNotTypeFromType($exprType);
2660:	}
2661:
2662:	public function getBitwiseNotTypeFromType(Type $exprType): Type
2663:	{
2664:	return $exprType->toBitwiseNotType();
2665:	}
2666:
2667:	private function resolveName(Name $name, ?ClassReflection $classReflection): string
2668:	{
2669:	$originalClass = (string) $name;
2670:	if ($classReflection !== null) {
2671:	$lowerClass = strtolower($originalClass);
2672:
2673:	if (in_array($lowerClass, [
2674:	'self',
2675:	'static',
2676:	], true)) {
2677:	return $classReflection->getName();
2678:	} elseif ($lowerClass === 'parent') {
2679:	if ($classReflection->getParentClass() !== null) {
2680:	return $classReflection->getParentClass()->getName();
2681:	}
2682:	}
2683:	}
2684:
2685:	return $originalClass;
2686:	}
2687:
2688:	private function resolveTypeByName(Name $name, ?ClassReflection $classReflection): TypeWithClassName
2689:	{
2690:	if ($name->toLowerString() === 'static' && $classReflection !== null) {
2691:	return new StaticType($classReflection);
2692:	}
2693:
2694:	$originalClass = $this->resolveName($name, $classReflection);
2695:	if ($classReflection !== null) {
2696:	$thisType = new ThisType($classReflection);
2697:	$ancestor = $thisType->getAncestorWithClassName($originalClass);
2698:	if ($ancestor !== null) {
2699:	return $ancestor;
2700:	}
2701:	}
2702:
2703:	return new ObjectType($originalClass);
2704:	}
2705:
2706:	private function resolveTypeByNameWithLateStaticBinding(Name $class, Type $classType, MethodReflection $methodReflectionCandidate): Type
2707:	{
2708:	if (
2709:	$classType instanceof StaticType
2710:	&& !in_array($class->toLowerString(), ['self', 'static', 'parent'], true)
2711:	) {
2712:	if ($methodReflectionCandidate->isStatic()) {
2713:	$classType = $classType->getStaticObjectType();
2714:	}
2715:	}
2716:
2717:	return $classType;
2718:	}
2719:
2720:	/**
2721:	* @param mixed $value
2722:	*/
2723:	private function getTypeFromValue($value): Type
2724:	{
2725:	return ConstantTypeHelper::getTypeFromValue($value);
2726:	}
2727:
2728:	private function getReflectionProvider(): ReflectionProvider
2729:	{
2730:	return $this->reflectionProviderProvider->getReflectionProvider();
2731:	}
2732:
2733:	private function getNeverType(Type $leftType, Type $rightType): Type
2734:	{
2735:	// make sure we don't lose the explicit flag in the process
2736:	if ($leftType instanceof NeverType && $leftType->isExplicit()) {
2737:	return $leftType;
2738:	}
2739:	if ($rightType instanceof NeverType && $rightType->isExplicit()) {
2740:	return $rightType;
2741:	}
2742:	return new NeverType();
2743:	}
2744:
2745:	}
2746:

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