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\DependencyInjection\Type\OperatorTypeSpecifyingExtensionRegistryProvider;
36:	use PHPStan\Node\Expr\TypeExpr;
37:	use PHPStan\Php\PhpVersion;
38:	use PHPStan\PhpDoc\Tag\TemplateTag;
39:	use PHPStan\Reflection\Callables\CallableParametersAcceptor;
40:	use PHPStan\Reflection\Callables\SimpleImpurePoint;
41:	use PHPStan\Reflection\Callables\SimpleThrowPoint;
42:	use PHPStan\Reflection\Native\NativeParameterReflection;
43:	use PHPStan\Reflection\ReflectionProvider\ReflectionProviderProvider;
44:	use PHPStan\ShouldNotHappenException;
45:	use PHPStan\TrinaryLogic;
46:	use PHPStan\Type\Accessory\AccessoryArrayListType;
47:	use PHPStan\Type\Accessory\AccessoryLiteralStringType;
48:	use PHPStan\Type\Accessory\AccessoryLowercaseStringType;
49:	use PHPStan\Type\Accessory\AccessoryNonEmptyStringType;
50:	use PHPStan\Type\Accessory\AccessoryNonFalsyStringType;
51:	use PHPStan\Type\Accessory\AccessoryNumericStringType;
52:	use PHPStan\Type\Accessory\AccessoryUppercaseStringType;
53:	use PHPStan\Type\Accessory\HasOffsetValueType;
54:	use PHPStan\Type\Accessory\NonEmptyArrayType;
55:	use PHPStan\Type\ArrayType;
56:	use PHPStan\Type\BenevolentUnionType;
57:	use PHPStan\Type\BooleanType;
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\ParserNodeTypeToPHPStanType;
88:	use PHPStan\Type\StaticType;
89:	use PHPStan\Type\StringType;
90:	use PHPStan\Type\ThisType;
91:	use PHPStan\Type\Type;
92:	use PHPStan\Type\TypeCombinator;
93:	use PHPStan\Type\TypehintHelper;
94:	use PHPStan\Type\TypeResult;
95:	use PHPStan\Type\TypeTraverser;
96:	use PHPStan\Type\TypeUtils;
97:	use PHPStan\Type\TypeWithClassName;
98:	use PHPStan\Type\UnionType;
99:	use stdClass;
100:	use Throwable;
101:	use function array_key_exists;
102:	use function array_keys;
103:	use function array_map;
104:	use function array_merge;
105:	use function array_values;
106:	use function assert;
107:	use function ceil;
108:	use function count;
109:	use function dirname;
110:	use function floor;
111:	use function in_array;
112:	use function intval;
113:	use function is_finite;
114:	use function is_float;
115:	use function is_int;
116:	use function is_numeric;
117:	use function is_string;
118:	use function max;
119:	use function min;
120:	use function sprintf;
121:	use function str_starts_with;
122:	use function strtolower;
123:	use const INF;
124:
125:	#[AutowiredService]
126:	final class InitializerExprTypeResolver
127:	{
128:
129:	public const CALCULATE_SCALARS_LIMIT = 128;
130:
131:	/** @var array<string, true> */
132:	private array $currentlyResolvingClassConstant = [];
133:
134:	public function __construct(
135:	private ConstantResolver $constantResolver,
136:	private ReflectionProviderProvider $reflectionProviderProvider,
137:	private PhpVersion $phpVersion,
138:	private OperatorTypeSpecifyingExtensionRegistryProvider $operatorTypeSpecifyingExtensionRegistryProvider,
139:	private OversizedArrayBuilder $oversizedArrayBuilder,
140:	#[AutowiredParameter]
141:	private bool $usePathConstantsAsConstantString,
142:	)
143:	{
144:	}
145:
146:	/** @api */
147:	public function getType(Expr $expr, InitializerExprContext $context): Type
148:	{
149:	if ($expr instanceof TypeExpr) {
150:	return $expr->getExprType();
151:	}
152:	if ($expr instanceof Int_) {
153:	return new ConstantIntegerType($expr->value);
154:	}
155:	if ($expr instanceof Float_) {
156:	return new ConstantFloatType($expr->value);
157:	}
158:	if ($expr instanceof String_) {
159:	return new ConstantStringType($expr->value);
160:	}
161:	if ($expr instanceof ConstFetch) {
162:	$constName = (string) $expr->name;
163:	$loweredConstName = strtolower($constName);
164:	if ($loweredConstName === 'true') {
165:	return new ConstantBooleanType(true);
166:	} elseif ($loweredConstName === 'false') {
167:	return new ConstantBooleanType(false);
168:	} elseif ($loweredConstName === 'null') {
169:	return new NullType();
170:	}
171:
172:	$constant = $this->constantResolver->resolveConstant($expr->name, $context);
173:	if ($constant !== null) {
174:	return $constant;
175:	}
176:
177:	return new ErrorType();
178:	}
179:	if ($expr instanceof File) {
180:	$file = $context->getFile();
181:	if ($file === null) {
182:	return new StringType();
183:	}
184:	$stringType = new ConstantStringType($file);
185:	return $this->usePathConstantsAsConstantString ? $stringType : $stringType->generalize(GeneralizePrecision::moreSpecific());
186:	}
187:	if ($expr instanceof Dir) {
188:	$file = $context->getFile();
189:	if ($file === null) {
190:	return new StringType();
191:	}
192:	$stringType = new ConstantStringType(dirname($file));
193:	return $this->usePathConstantsAsConstantString ? $stringType : $stringType->generalize(GeneralizePrecision::moreSpecific());
194:	}
195:	if ($expr instanceof Line) {
196:	return new ConstantIntegerType($expr->getStartLine());
197:	}
198:	if ($expr instanceof Expr\New_) {
199:	if ($expr->class instanceof Name) {
200:	return new ObjectType((string) $expr->class);
201:	}
202:
203:	return new ObjectWithoutClassType();
204:	}
205:	if ($expr instanceof Expr\Array_) {
206:	return $this->getArrayType($expr, fn (Expr $expr): Type => $this->getType($expr, $context));
207:	}
208:	if ($expr instanceof Expr\Cast) {
209:	return $this->getCastType($expr, fn (Expr $expr): Type => $this->getType($expr, $context));
210:	}
211:	if ($expr instanceof Expr\CallLike && $expr->isFirstClassCallable()) {
212:	return $this->getFirstClassCallableType($expr, $context, false);
213:	}
214:	if ($expr instanceof Expr\Closure && $expr->static) {
215:	$parameters = [];
216:	$isVariadic = false;
217:	$firstOptionalParameterIndex = null;
218:	foreach ($expr->params as $i => $param) {
219:	$isOptionalCandidate = $param->default !== null \|\| $param->variadic;
220:
221:	if ($isOptionalCandidate) {
222:	if ($firstOptionalParameterIndex === null) {
223:	$firstOptionalParameterIndex = $i;
224:	}
225:	} else {
226:	$firstOptionalParameterIndex = null;
227:	}
228:	}
229:
230:	foreach ($expr->params as $i => $param) {
231:	if ($param->variadic) {
232:	$isVariadic = true;
233:	}
234:	if (!$param->var instanceof Variable \|\| !is_string($param->var->name)) {
235:	throw new ShouldNotHappenException();
236:	}
237:	$parameters[] = new NativeParameterReflection(
238:	$param->var->name,
239:	$firstOptionalParameterIndex !== null && $i >= $firstOptionalParameterIndex,
240:	$this->getFunctionType($param->type, $this->isParameterValueNullable($param), false, $context),
241:	$param->byRef
242:	? PassedByReference::createCreatesNewVariable()
243:	: PassedByReference::createNo(),
244:	$param->variadic,
245:	$param->default !== null ? $this->getType($param->default, $context) : null,
246:	);
247:	}
248:
249:	$returnType = new MixedType(false);
250:	if ($expr->returnType !== null) {
251:	$returnType = $this->getFunctionType($expr->returnType, false, false, $context);
252:	}
253:
254:	return new ClosureType(
255:	$parameters,
256:	$returnType,
257:	$isVariadic,
258:	TemplateTypeMap::createEmpty(),
259:	TemplateTypeMap::createEmpty(),
260:	TemplateTypeVarianceMap::createEmpty(),
261:	acceptsNamedArguments: TrinaryLogic::createYes(),
262:	);
263:	}
264:	if ($expr instanceof Expr\ArrayDimFetch && $expr->dim !== null) {
265:	$var = $this->getType($expr->var, $context);
266:	$dim = $this->getType($expr->dim, $context);
267:	return $var->getOffsetValueType($dim);
268:	}
269:	if ($expr instanceof ClassConstFetch && $expr->name instanceof Identifier) {
270:	return $this->getClassConstFetchType($expr->class, $expr->name->toString(), $context->getClassName(), fn (Expr $expr): Type => $this->getType($expr, $context));
271:	}
272:	if ($expr instanceof Expr\UnaryPlus) {
273:	return $this->getType($expr->expr, $context)->toNumber();
274:	}
275:	if ($expr instanceof Expr\UnaryMinus) {
276:	return $this->getUnaryMinusType($expr->expr, fn (Expr $expr): Type => $this->getType($expr, $context));
277:	}
278:	if ($expr instanceof Expr\BinaryOp\Coalesce) {
279:	$leftType = $this->getType($expr->left, $context);
280:	$rightType = $this->getType($expr->right, $context);
281:
282:	return TypeCombinator::union(TypeCombinator::removeNull($leftType), $rightType);
283:	}
284:
285:	if ($expr instanceof Expr\Ternary) {
286:	$elseType = $this->getType($expr->else, $context);
287:	if ($expr->if === null) {
288:	$condType = $this->getType($expr->cond, $context);
289:
290:	return TypeCombinator::union(
291:	TypeCombinator::removeFalsey($condType),
292:	$elseType,
293:	);
294:	}
295:
296:	$ifType = $this->getType($expr->if, $context);
297:
298:	return TypeCombinator::union(
299:	TypeCombinator::removeFalsey($ifType),
300:	$elseType,
301:	);
302:	}
303:
304:	if ($expr instanceof Expr\FuncCall && $expr->name instanceof Name && $expr->name->toLowerString() === 'constant') {
305:	$firstArg = $expr->args[0] ?? null;
306:	if ($firstArg instanceof Arg && $firstArg->value instanceof String_) {
307:	$constant = $this->constantResolver->resolvePredefinedConstant($firstArg->value->value);
308:	if ($constant !== null) {
309:	return $constant;
310:	}
311:	}
312:	}
313:
314:	if ($expr instanceof Expr\BooleanNot) {
315:	$exprBooleanType = $this->getType($expr->expr, $context)->toBoolean();
316:
317:	if ($exprBooleanType instanceof ConstantBooleanType) {
318:	return new ConstantBooleanType(!$exprBooleanType->getValue());
319:	}
320:
321:	return new BooleanType();
322:	}
323:
324:	if ($expr instanceof Expr\BitwiseNot) {
325:	return $this->getBitwiseNotType($expr->expr, fn (Expr $expr): Type => $this->getType($expr, $context));
326:	}
327:
328:	if ($expr instanceof Expr\BinaryOp\Concat) {
329:	return $this->getConcatType($expr->left, $expr->right, fn (Expr $expr): Type => $this->getType($expr, $context));
330:	}
331:
332:	if ($expr instanceof Expr\BinaryOp\BitwiseAnd) {
333:	return $this->getBitwiseAndType($expr->left, $expr->right, fn (Expr $expr): Type => $this->getType($expr, $context));
334:	}
335:
336:	if ($expr instanceof Expr\BinaryOp\BitwiseOr) {
337:	return $this->getBitwiseOrType($expr->left, $expr->right, fn (Expr $expr): Type => $this->getType($expr, $context));
338:	}
339:
340:	if ($expr instanceof Expr\BinaryOp\BitwiseXor) {
341:	return $this->getBitwiseXorType($expr->left, $expr->right, fn (Expr $expr): Type => $this->getType($expr, $context));
342:	}
343:
344:	if ($expr instanceof Expr\BinaryOp\Spaceship) {
345:	return $this->getSpaceshipType($expr->left, $expr->right, fn (Expr $expr): Type => $this->getType($expr, $context));
346:	}
347:
348:	if (
349:	$expr instanceof Expr\BinaryOp\BooleanAnd
350:	\|\| $expr instanceof Expr\BinaryOp\LogicalAnd
351:	\|\| $expr instanceof Expr\BinaryOp\BooleanOr
352:	\|\| $expr instanceof Expr\BinaryOp\LogicalOr
353:	) {
354:	return new BooleanType();
355:	}
356:
357:	if ($expr instanceof Expr\BinaryOp\Div) {
358:	return $this->getDivType($expr->left, $expr->right, fn (Expr $expr): Type => $this->getType($expr, $context));
359:	}
360:
361:	if ($expr instanceof Expr\BinaryOp\Mod) {
362:	return $this->getModType($expr->left, $expr->right, fn (Expr $expr): Type => $this->getType($expr, $context));
363:	}
364:
365:	if ($expr instanceof Expr\BinaryOp\Plus) {
366:	return $this->getPlusType($expr->left, $expr->right, fn (Expr $expr): Type => $this->getType($expr, $context));
367:	}
368:
369:	if ($expr instanceof Expr\BinaryOp\Minus) {
370:	return $this->getMinusType($expr->left, $expr->right, fn (Expr $expr): Type => $this->getType($expr, $context));
371:	}
372:
373:	if ($expr instanceof Expr\BinaryOp\Mul) {
374:	return $this->getMulType($expr->left, $expr->right, fn (Expr $expr): Type => $this->getType($expr, $context));
375:	}
376:
377:	if ($expr instanceof Expr\BinaryOp\Pow) {
378:	return $this->getPowType($expr->left, $expr->right, fn (Expr $expr): Type => $this->getType($expr, $context));
379:	}
380:
381:	if ($expr instanceof Expr\BinaryOp\ShiftLeft) {
382:	return $this->getShiftLeftType($expr->left, $expr->right, fn (Expr $expr): Type => $this->getType($expr, $context));
383:	}
384:
385:	if ($expr instanceof Expr\BinaryOp\ShiftRight) {
386:	return $this->getShiftRightType($expr->left, $expr->right, fn (Expr $expr): Type => $this->getType($expr, $context));
387:	}
388:
389:	if ($expr instanceof BinaryOp\Identical) {
390:	return $this->resolveIdenticalType(
391:	$this->getType($expr->left, $context),
392:	$this->getType($expr->right, $context),
393:	)->type;
394:	}
395:
396:	if ($expr instanceof BinaryOp\NotIdentical) {
397:	return $this->getType(new Expr\BooleanNot(new BinaryOp\Identical($expr->left, $expr->right)), $context);
398:	}
399:
400:	if ($expr instanceof BinaryOp\Equal) {
401:	return $this->resolveEqualType(
402:	$this->getType($expr->left, $context),
403:	$this->getType($expr->right, $context),
404:	)->type;
405:	}
406:
407:	if ($expr instanceof BinaryOp\NotEqual) {
408:	return $this->getType(new Expr\BooleanNot(new BinaryOp\Equal($expr->left, $expr->right)), $context);
409:	}
410:
411:	if ($expr instanceof Expr\BinaryOp\Smaller) {
412:	return $this->getType($expr->left, $context)->isSmallerThan($this->getType($expr->right, $context), $this->phpVersion)->toBooleanType();
413:	}
414:
415:	if ($expr instanceof Expr\BinaryOp\SmallerOrEqual) {
416:	return $this->getType($expr->left, $context)->isSmallerThanOrEqual($this->getType($expr->right, $context), $this->phpVersion)->toBooleanType();
417:	}
418:
419:	if ($expr instanceof Expr\BinaryOp\Greater) {
420:	return $this->getType($expr->right, $context)->isSmallerThan($this->getType($expr->left, $context), $this->phpVersion)->toBooleanType();
421:	}
422:
423:	if ($expr instanceof Expr\BinaryOp\GreaterOrEqual) {
424:	return $this->getType($expr->right, $context)->isSmallerThanOrEqual($this->getType($expr->left, $context), $this->phpVersion)->toBooleanType();
425:	}
426:
427:	if ($expr instanceof Expr\BinaryOp\LogicalXor) {
428:	$leftBooleanType = $this->getType($expr->left, $context)->toBoolean();
429:	$rightBooleanType = $this->getType($expr->right, $context)->toBoolean();
430:
431:	if (
432:	$leftBooleanType instanceof ConstantBooleanType
433:	&& $rightBooleanType instanceof ConstantBooleanType
434:	) {
435:	return new ConstantBooleanType(
436:	$leftBooleanType->getValue() xor $rightBooleanType->getValue(),
437:	);
438:	}
439:
440:	return new BooleanType();
441:	}
442:
443:	if ($expr instanceof MagicConst\Class_) {
444:	if ($context->getTraitName() !== null) {
445:	return new IntersectionType([
446:	new ClassStringType(),
447:	new AccessoryLiteralStringType(),
448:	]);
449:	}
450:
451:	if ($context->getClassName() === null) {
452:	return new ConstantStringType('');
453:	}
454:
455:	return new ConstantStringType($context->getClassName(), true);
456:	}
457:
458:	if ($expr instanceof MagicConst\Namespace_) {
459:	if ($context->getTraitName() !== null) {
460:	return new IntersectionType([
461:	new StringType(),
462:	new AccessoryLiteralStringType(),
463:	]);
464:	}
465:
466:	return new ConstantStringType($context->getNamespace() ?? '');
467:	}
468:
469:	if ($expr instanceof MagicConst\Method) {
470:	return new ConstantStringType($context->getMethod() ?? '');
471:	}
472:
473:	if ($expr instanceof MagicConst\Function_) {
474:	return new ConstantStringType($context->getFunction() ?? '');
475:	}
476:
477:	if ($expr instanceof MagicConst\Trait_) {
478:	if ($context->getTraitName() === null) {
479:	return new ConstantStringType('');
480:	}
481:
482:	return new ConstantStringType($context->getTraitName(), true);
483:	}
484:
485:	if ($expr instanceof MagicConst\Property) {
486:	$contextProperty = $context->getProperty();
487:	if ($contextProperty === null) {
488:	return new ConstantStringType('');
489:	}
490:
491:	return new ConstantStringType($contextProperty);
492:	}
493:
494:	if ($expr instanceof PropertyFetch && $expr->name instanceof Identifier) {
495:	$fetchedOnType = $this->getType($expr->var, $context);
496:	if (!$fetchedOnType->hasInstanceProperty($expr->name->name)->yes()) {
497:	return new ErrorType();
498:	}
499:
500:	return $fetchedOnType->getInstanceProperty($expr->name->name, new OutOfClassScope())->getReadableType();
501:	}
502:
503:	return new MixedType();
504:	}
505:
506:	/**
507:	* @param callable(Expr): Type $getTypeCallback
508:	*/
509:	public function getConcatType(Expr $left, Expr $right, callable $getTypeCallback): Type
510:	{
511:	$leftType = $getTypeCallback($left);
512:	$rightType = $getTypeCallback($right);
513:
514:	return $this->resolveConcatType($leftType, $rightType);
515:	}
516:
517:	public function resolveConcatType(Type $left, Type $right): Type
518:	{
519:	$leftStringType = $left->toString();
520:	$rightStringType = $right->toString();
521:	if (TypeCombinator::union(
522:	$leftStringType,
523:	$rightStringType,
524:	) instanceof ErrorType) {
525:	return new ErrorType();
526:	}
527:
528:	if ($leftStringType instanceof ConstantStringType && $leftStringType->getValue() === '') {
529:	return $rightStringType;
530:	}
531:
532:	if ($rightStringType instanceof ConstantStringType && $rightStringType->getValue() === '') {
533:	return $leftStringType;
534:	}
535:
536:	if ($leftStringType instanceof ConstantStringType && $rightStringType instanceof ConstantStringType) {
537:	return $leftStringType->append($rightStringType);
538:	}
539:
540:	$leftConstantStrings = $leftStringType->getConstantStrings();
541:	$rightConstantStrings = $rightStringType->getConstantStrings();
542:	$combinedConstantStringsCount = count($leftConstantStrings) * count($rightConstantStrings);
543:
544:	// we limit the number of union-types for performance reasons
545:	if ($combinedConstantStringsCount > 0 && $combinedConstantStringsCount <= self::CALCULATE_SCALARS_LIMIT) {
546:	$strings = [];
547:
548:	foreach ($leftConstantStrings as $leftConstantString) {
549:	if ($leftConstantString->getValue() === '') {
550:	$strings = array_merge($strings, $rightConstantStrings);
551:
552:	continue;
553:	}
554:
555:	foreach ($rightConstantStrings as $rightConstantString) {
556:	if ($rightConstantString->getValue() === '') {
557:	$strings[] = $leftConstantString;
558:
559:	continue;
560:	}
561:
562:	$strings[] = $leftConstantString->append($rightConstantString);
563:	}
564:	}
565:
566:	if (count($strings) > 0) {
567:	return TypeCombinator::union(...$strings);
568:	}
569:	}
570:
571:	$accessoryTypes = [];
572:	if ($leftStringType->isNonEmptyString()->and($rightStringType->isNonEmptyString())->yes()) {
573:	$accessoryTypes[] = new AccessoryNonFalsyStringType();
574:	} elseif ($leftStringType->isNonFalsyString()->or($rightStringType->isNonFalsyString())->yes()) {
575:	$accessoryTypes[] = new AccessoryNonFalsyStringType();
576:	} elseif ($leftStringType->isNonEmptyString()->or($rightStringType->isNonEmptyString())->yes()) {
577:	$accessoryTypes[] = new AccessoryNonEmptyStringType();
578:	}
579:
580:	if ($leftStringType->isLiteralString()->and($rightStringType->isLiteralString())->yes()) {
581:	$accessoryTypes[] = new AccessoryLiteralStringType();
582:	}
583:
584:	if ($leftStringType->isLowercaseString()->and($rightStringType->isLowercaseString())->yes()) {
585:	$accessoryTypes[] = new AccessoryLowercaseStringType();
586:	}
587:
588:	if ($leftStringType->isUppercaseString()->and($rightStringType->isUppercaseString())->yes()) {
589:	$accessoryTypes[] = new AccessoryUppercaseStringType();
590:	}
591:
592:	$leftNumericStringNonEmpty = TypeCombinator::remove($leftStringType, new ConstantStringType(''));
593:	if ($leftNumericStringNonEmpty->isNumericString()->yes()) {
594:	$validationCallback = $left->isInteger()->yes()
595:	? static fn (string $value): bool => !str_starts_with($value, '-')
596:	: static fn (string $value): bool => Strings::match($value, '#^\d+$#') !== null;
597:
598:	$allRightConstantsZeroOrMore = false;
599:	foreach ($rightConstantStrings as $rightConstantString) {
600:	if ($rightConstantString->getValue() === '') {
601:	continue;
602:	}
603:
604:	if (
605:	!is_numeric($rightConstantString->getValue())
606:	\|\| !$validationCallback($rightConstantString->getValue())
607:	) {
608:	$allRightConstantsZeroOrMore = false;
609:	break;
610:	}
611:
612:	$allRightConstantsZeroOrMore = true;
613:	}
614:
615:	$zeroOrMoreInteger = IntegerRangeType::fromInterval(0, null);
616:	$nonNegativeRight = $allRightConstantsZeroOrMore \|\| $zeroOrMoreInteger->isSuperTypeOf($right)->yes();
617:	if ($nonNegativeRight) {
618:	$accessoryTypes[] = new AccessoryNumericStringType();
619:	}
620:	}
621:
622:	if (count($accessoryTypes) > 0) {
623:	$accessoryTypes[] = new StringType();
624:	return new IntersectionType($accessoryTypes);
625:	}
626:
627:	return new StringType();
628:	}
629:
630:	/**
631:	* @param callable(Expr): Type $getTypeCallback
632:	*/
633:	public function getArrayType(Expr\Array_ $expr, callable $getTypeCallback): Type
634:	{
635:	if (count($expr->items) > ConstantArrayTypeBuilder::ARRAY_COUNT_LIMIT) {
636:	return $this->oversizedArrayBuilder->build($expr, $getTypeCallback);
637:	}
638:
639:	$arrayBuilder = ConstantArrayTypeBuilder::createEmpty();
640:	$isList = null;
641:	$hasOffsetValueTypes = [];
642:	foreach ($expr->items as $arrayItem) {
643:	$valueType = $getTypeCallback($arrayItem->value);
644:	if ($arrayItem->unpack) {
645:	$constantArrays = $valueType->getConstantArrays();
646:	if (count($constantArrays) === 1) {
647:	$constantArrayType = $constantArrays[0];
648:
649:	$hasStringKey = false;
650:	if ($this->phpVersion->supportsArrayUnpackingWithStringKeys()) {
651:	foreach ($constantArrayType->getKeyTypes() as $keyType) {
652:	if ($keyType->isString()->yes()) {
653:	$hasStringKey = true;
654:	break;
655:	}
656:	}
657:	}
658:
659:	foreach ($constantArrayType->getValueTypes() as $i => $innerValueType) {
660:	if ($hasStringKey) {
661:	$arrayBuilder->setOffsetValueType($constantArrayType->getKeyTypes()[$i], $innerValueType, $constantArrayType->isOptionalKey($i));
662:	if (!$constantArrayType->isOptionalKey($i)) {
663:	$hasOffsetValueTypes[$constantArrayType->getKeyTypes()[$i]->getValue()] = new HasOffsetValueType($constantArrayType->getKeyTypes()[$i], $innerValueType);
664:	}
665:	} else {
666:	$arrayBuilder->setOffsetValueType(null, $innerValueType, $constantArrayType->isOptionalKey($i));
667:	}
668:	}
669:	} else {
670:	$arrayBuilder->degradeToGeneralArray();
671:
672:	if ($this->phpVersion->supportsArrayUnpackingWithStringKeys() && !$valueType->getIterableKeyType()->isString()->no()) {
673:	$isList = false;
674:	$offsetType = $valueType->getIterableKeyType();
675:
676:	foreach ($hasOffsetValueTypes as $key => $hasOffsetValueType) {
677:	if (!$offsetType->isSuperTypeOf($hasOffsetValueType->getOffsetType())->yes()) {
678:	continue;
679:	}
680:
681:	unset($hasOffsetValueTypes[$key]);
682:	}
683:	} else {
684:	$isList ??= $arrayBuilder->isList();
685:	$offsetType = new IntegerType();
686:	}
687:
688:	$arrayBuilder->setOffsetValueType($offsetType, $valueType->getIterableValueType(), !$valueType->isIterableAtLeastOnce()->yes());
689:	}
690:	} else {
691:	$arrayBuilder->setOffsetValueType(
692:	$arrayItem->key !== null ? $getTypeCallback($arrayItem->key) : null,
693:	$valueType,
694:	);
695:	}
696:	}
697:
698:	$arrayType = $arrayBuilder->getArray();
699:	if ($isList === true) {
700:	$arrayType = TypeCombinator::intersect($arrayType, new AccessoryArrayListType());
701:	}
702:
703:	if (count($hasOffsetValueTypes) > 0 && !$arrayType->isConstantArray()->yes()) {
704:	$arrayType = TypeCombinator::intersect($arrayType, ...array_values($hasOffsetValueTypes));
705:	}
706:
707:	return $arrayType;
708:	}
709:
710:	/**
711:	* @param callable(Expr): Type $getTypeCallback
712:	*/
713:	public function getCastType(Expr\Cast $expr, callable $getTypeCallback): Type
714:	{
715:	if ($expr instanceof \PhpParser\Node\Expr\Cast\Int_) {
716:	return $getTypeCallback($expr->expr)->toInteger();
717:	}
718:	if ($expr instanceof Bool_) {
719:	return $getTypeCallback($expr->expr)->toBoolean();
720:	}
721:	if ($expr instanceof Double) {
722:	return $getTypeCallback($expr->expr)->toFloat();
723:	}
724:	if ($expr instanceof \PhpParser\Node\Expr\Cast\String_) {
725:	return $getTypeCallback($expr->expr)->toString();
726:	}
727:	if ($expr instanceof Array_) {
728:	return $getTypeCallback($expr->expr)->toArray();
729:	}
730:	if ($expr instanceof Object_) {
731:	return $this->getCastObjectType($getTypeCallback($expr->expr));
732:	}
733:
734:	return new MixedType();
735:	}
736:
737:	public function getCastObjectType(Type $exprType): Type
738:	{
739:	$castToObject = static function (Type $type): Type {
740:	$constantArrays = $type->getConstantArrays();
741:	if (count($constantArrays) > 0) {
742:	$objects = [];
743:	foreach ($constantArrays as $constantArray) {
744:	$properties = [];
745:	$optionalProperties = [];
746:	foreach ($constantArray->getKeyTypes() as $i => $keyType) {
747:	$valueType = $constantArray->getValueTypes()[$i];
748:	$optional = $constantArray->isOptionalKey($i);
749:	if ($optional) {
750:	$optionalProperties[] = $keyType->getValue();
751:	}
752:	$properties[$keyType->getValue()] = $valueType;
753:	}
754:
755:	$objects[] = new IntersectionType([new ObjectShapeType($properties, $optionalProperties), new ObjectType(stdClass::class)]);
756:	}
757:
758:	return TypeCombinator::union(...$objects);
759:	}
760:	if ($type->isObject()->yes()) {
761:	return $type;
762:	}
763:
764:	return new ObjectType('stdClass');
765:	};
766:
767:	if ($exprType instanceof UnionType) {
768:	return TypeCombinator::union(...array_map($castToObject, $exprType->getTypes()));
769:	}
770:
771:	return $castToObject($exprType);
772:	}
773:
774:	/**
775:	* @param Name\|Identifier\|ComplexType\|null $type
776:	*/
777:	public function getFunctionType($type, bool $isNullable, bool $isVariadic, InitializerExprContext $context): Type
778:	{
779:	if ($isNullable) {
780:	return TypeCombinator::addNull(
781:	$this->getFunctionType($type, false, $isVariadic, $context),
782:	);
783:	}
784:	if ($isVariadic) {
785:	if (!$this->phpVersion->supportsNamedArguments()) {
786:	return new ArrayType(new UnionType([new IntegerType(), new StringType()]), $this->getFunctionType(
787:	$type,
788:	false,
789:	false,
790:	$context,
791:	));
792:	}
793:
794:	return new IntersectionType([new ArrayType(IntegerRangeType::createAllGreaterThanOrEqualTo(0), $this->getFunctionType(
795:	$type,
796:	false,
797:	false,
798:	$context,
799:	)), new AccessoryArrayListType()]);
800:	}
801:
802:	if ($type instanceof Name) {
803:	$className = (string) $type;
804:	$lowercasedClassName = strtolower($className);
805:	if ($lowercasedClassName === 'parent') {
806:	$classReflection = null;
807:	if ($context->getClassName() !== null && $this->getReflectionProvider()->hasClass($context->getClassName())) {
808:	$classReflection = $this->getReflectionProvider()->getClass($context->getClassName());
809:	}
810:	if ($classReflection !== null && $classReflection->getParentClass() !== null) {
811:	return new ObjectType($classReflection->getParentClass()->getName());
812:	}
813:
814:	return new NonexistentParentClassType();
815:	}
816:	}
817:
818:	$classReflection = null;
819:	if ($context->getClassName() !== null && $this->getReflectionProvider()->hasClass($context->getClassName())) {
820:	$classReflection = $this->getReflectionProvider()->getClass($context->getClassName());
821:	}
822:
823:	return ParserNodeTypeToPHPStanType::resolve($type, $classReflection);
824:	}
825:
826:	private function isParameterValueNullable(Param $parameter): bool
827:	{
828:	if ($parameter->default instanceof ConstFetch) {
829:	return strtolower((string) $parameter->default->name) === 'null';
830:	}
831:
832:	return false;
833:	}
834:
835:	public function getFirstClassCallableType(Expr\CallLike $expr, InitializerExprContext $context, bool $nativeTypesPromoted): Type
836:	{
837:	if ($expr instanceof FuncCall) {
838:	if ($expr->name instanceof Name) {
839:	if ($this->getReflectionProvider()->hasFunction($expr->name, $context)) {
840:	$function = $this->getReflectionProvider()->getFunction($expr->name, $context);
841:	return $this->createFirstClassCallable(
842:	$function,
843:	$function->getVariants(),
844:	$nativeTypesPromoted,
845:	);
846:	}
847:
848:	return new ObjectType(Closure::class);
849:	}
850:	}
851:
852:	if ($expr instanceof Expr\StaticCall) {
853:	if (!$expr->class instanceof Name) {
854:	return new ObjectType(Closure::class);
855:	}
856:
857:	if (!$expr->name instanceof Identifier) {
858:	return new ObjectType(Closure::class);
859:	}
860:
861:	$classReflection = null;
862:	if ($context->getClassName() !== null && $this->getReflectionProvider()->hasClass($context->getClassName())) {
863:	$classReflection = $this->getReflectionProvider()->getClass($context->getClassName());
864:	}
865:
866:	$classType = $this->resolveTypeByName($expr->class, $classReflection);
867:	$methodName = $expr->name->toString();
868:	if (!$classType->hasMethod($methodName)->yes()) {
869:	return new ObjectType(Closure::class);
870:	}
871:
872:	$method = $classType->getMethod($methodName, new OutOfClassScope());
873:	$classType = $this->resolveTypeByNameWithLateStaticBinding($expr->class, $classType, $method);
874:	if (!$classType->hasMethod($methodName)->yes()) {
875:	return new ObjectType(Closure::class);
876:	}
877:	$method = $classType->getMethod($methodName, new OutOfClassScope());
878:
879:	return $this->createFirstClassCallable(
880:	$method,
881:	$method->getVariants(),
882:	$nativeTypesPromoted,
883:	);
884:	}
885:
886:	if ($expr instanceof New_) {
887:	return new ErrorType();
888:	}
889:
890:	throw new ShouldNotHappenException();
891:	}
892:
893:	/**
894:	* @param ParametersAcceptor[] $variants
895:	*/
896:	public function createFirstClassCallable(
897:	FunctionReflection\|ExtendedMethodReflection\|null $function,
898:	array $variants,
899:	bool $nativeTypesPromoted,
900:	): Type
901:	{
902:	$closureTypes = [];
903:
904:	foreach ($variants as $variant) {
905:	$returnType = $variant->getReturnType();
906:	if ($variant instanceof ExtendedParametersAcceptor) {
907:	$returnType = $nativeTypesPromoted ? $variant->getNativeReturnType() : $returnType;
908:	}
909:
910:	$templateTags = [];
911:	foreach ($variant->getTemplateTypeMap()->getTypes() as $templateType) {
912:	if (!$templateType instanceof TemplateType) {
913:	continue;
914:	}
915:	$templateTags[$templateType->getName()] = new TemplateTag(
916:	$templateType->getName(),
917:	$templateType->getBound(),
918:	$templateType->getDefault(),
919:	$templateType->getVariance(),
920:	);
921:	}
922:
923:	$throwPoints = [];
924:	$impurePoints = [];
925:	$acceptsNamedArguments = TrinaryLogic::createYes();
926:	$mustUseReturnValue = TrinaryLogic::createMaybe();
927:	if ($variant instanceof CallableParametersAcceptor) {
928:	$throwPoints = $variant->getThrowPoints();
929:	$impurePoints = $variant->getImpurePoints();
930:	$acceptsNamedArguments = $variant->acceptsNamedArguments();
931:	$mustUseReturnValue = $variant->mustUseReturnValue();
932:	} elseif ($function !== null) {
933:	$returnTypeForThrow = $variant->getReturnType();
934:	$throwType = $function->getThrowType();
935:	if ($throwType === null) {
936:	if ($returnTypeForThrow instanceof NeverType && $returnTypeForThrow->isExplicit()) {
937:	$throwType = new ObjectType(Throwable::class);
938:	}
939:	}
940:
941:	if ($throwType !== null) {
942:	if (!$throwType->isVoid()->yes()) {
943:	$throwPoints[] = SimpleThrowPoint::createExplicit($throwType, true);
944:	}
945:	} else {
946:	if (!(new ObjectType(Throwable::class))->isSuperTypeOf($returnTypeForThrow)->yes()) {
947:	$throwPoints[] = SimpleThrowPoint::createImplicit();
948:	}
949:	}
950:
951:	$impurePoint = SimpleImpurePoint::createFromVariant($function, $variant);
952:	if ($impurePoint !== null) {
953:	$impurePoints[] = $impurePoint;
954:	}
955:
956:	$acceptsNamedArguments = $function->acceptsNamedArguments();
957:	$mustUseReturnValue = $function->mustUseReturnValue();
958:	}
959:
960:	$parameters = $variant->getParameters();
961:	$closureTypes[] = new ClosureType(
962:	$parameters,
963:	$returnType,
964:	$variant->isVariadic(),
965:	$variant->getTemplateTypeMap(),
966:	$variant->getResolvedTemplateTypeMap(),
967:	$variant instanceof ExtendedParametersAcceptor ? $variant->getCallSiteVarianceMap() : TemplateTypeVarianceMap::createEmpty(),
968:	$templateTags,
969:	$throwPoints,
970:	$impurePoints,
971:	acceptsNamedArguments: $acceptsNamedArguments,
972:	mustUseReturnValue: $mustUseReturnValue,
973:	);
974:	}
975:
976:	return TypeCombinator::union(...$closureTypes);
977:	}
978:
979:	/**
980:	* @param callable(Expr): Type $getTypeCallback
981:	*/
982:	public function getBitwiseAndType(Expr $left, Expr $right, callable $getTypeCallback): Type
983:	{
984:	$leftType = $getTypeCallback($left);
985:	$rightType = $getTypeCallback($right);
986:
987:	return $this->getBitwiseAndTypeFromTypes($leftType, $rightType);
988:	}
989:
990:	public function getBitwiseAndTypeFromTypes(Type $leftType, Type $rightType): Type
991:	{
992:	if ($leftType instanceof NeverType \|\| $rightType instanceof NeverType) {
993:	return $this->getNeverType($leftType, $rightType);
994:	}
995:
996:	$result = $this->getFiniteOrConstantScalarTypes($leftType, $rightType, static fn ($a, $b) => $a & $b);
997:	if ($result instanceof Type) {
998:	return $result;
999:	} elseif ($result === self::IS_SCALAR_TYPE) {
1000:	$leftType = $this->optimizeScalarType($leftType);
1001:	$rightType = $this->optimizeScalarType($rightType);
1002:	}
1003:
1004:	if ($leftType instanceof MixedType && $rightType instanceof MixedType) {
1005:	return new BenevolentUnionType([new IntegerType(), new StringType()]);
1006:	}
1007:
1008:	$leftIsString = $leftType->isString();
1009:	$rightIsString = $rightType->isString();
1010:	if (
1011:	($leftIsString->yes() \|\| $leftType instanceof MixedType)
1012:	&& ($rightIsString->yes() \|\| $rightType instanceof MixedType)
1013:	) {
1014:	return new StringType();
1015:	}
1016:	if ($leftIsString->maybe() && $rightIsString->maybe()) {
1017:	return new ErrorType();
1018:	}
1019:
1020:	$leftNumberType = $leftType->toNumber();
1021:	$rightNumberType = $rightType->toNumber();
1022:
1023:	if ($leftNumberType instanceof ErrorType \|\| $rightNumberType instanceof ErrorType) {
1024:	return new ErrorType();
1025:	}
1026:
1027:	if ($rightNumberType instanceof ConstantIntegerType && $rightNumberType->getValue() >= 0) {
1028:	return IntegerRangeType::fromInterval(0, $rightNumberType->getValue());
1029:	}
1030:	if ($leftNumberType instanceof ConstantIntegerType && $leftNumberType->getValue() >= 0) {
1031:	return IntegerRangeType::fromInterval(0, $leftNumberType->getValue());
1032:	}
1033:
1034:	return new IntegerType();
1035:	}
1036:
1037:	/**
1038:	* @param callable(Expr): Type $getTypeCallback
1039:	*/
1040:	public function getBitwiseOrType(Expr $left, Expr $right, callable $getTypeCallback): Type
1041:	{
1042:	$leftType = $getTypeCallback($left);
1043:	$rightType = $getTypeCallback($right);
1044:
1045:	return $this->getBitwiseOrTypeFromTypes($leftType, $rightType);
1046:	}
1047:
1048:	public function getBitwiseOrTypeFromTypes(Type $leftType, Type $rightType): Type
1049:	{
1050:	if ($leftType instanceof NeverType \|\| $rightType instanceof NeverType) {
1051:	return $this->getNeverType($leftType, $rightType);
1052:	}
1053:
1054:	$result = $this->getFiniteOrConstantScalarTypes($leftType, $rightType, static fn ($a, $b) => $a \| $b);
1055:	if ($result instanceof Type) {
1056:	return $result;
1057:	} elseif ($result === self::IS_SCALAR_TYPE) {
1058:	$leftType = $this->optimizeScalarType($leftType);
1059:	$rightType = $this->optimizeScalarType($rightType);
1060:	}
1061:
1062:	if ($leftType instanceof MixedType && $rightType instanceof MixedType) {
1063:	return new BenevolentUnionType([new IntegerType(), new StringType()]);
1064:	}
1065:
1066:	$leftIsString = $leftType->isString();
1067:	$rightIsString = $rightType->isString();
1068:	if (
1069:	($leftIsString->yes() \|\| $leftType instanceof MixedType)
1070:	&& ($rightIsString->yes() \|\| $rightType instanceof MixedType)
1071:	) {
1072:	return new StringType();
1073:	}
1074:	if ($leftIsString->maybe() && $rightIsString->maybe()) {
1075:	return new ErrorType();
1076:	}
1077:
1078:	if ($leftType->toNumber() instanceof ErrorType \|\| $rightType->toNumber() instanceof ErrorType) {
1079:	return new ErrorType();
1080:	}
1081:
1082:	return new IntegerType();
1083:	}
1084:
1085:	/**
1086:	* @param callable(Expr): Type $getTypeCallback
1087:	*/
1088:	public function getBitwiseXorType(Expr $left, Expr $right, callable $getTypeCallback): Type
1089:	{
1090:	$leftType = $getTypeCallback($left);
1091:	$rightType = $getTypeCallback($right);
1092:
1093:	return $this->getBitwiseXorTypeFromTypes($leftType, $rightType);
1094:	}
1095:
1096:	private const IS_SCALAR_TYPE = 1;
1097:	private const IS_UNKNOWN = 2;
1098:
1099:	/**
1100:	* @param callable(bool\|float\|int\|string\|null, bool\|float\|int\|string\|null):string $operationCallable
1101:	*
1102:	* @return self::IS_UNKNOWN\|self::IS_SCALAR_TYPE\|Type
1103:	*/
1104:	private function getFiniteOrConstantScalarTypes(Type $leftType, Type $rightType, callable $operationCallable): int\|Type
1105:	{
1106:	if ($leftType instanceof IntegerRangeType) {
1107:	$leftTypes = $leftType->getFiniteTypes();
1108:	} else {
1109:	$leftTypes = $leftType->getConstantScalarTypes();
1110:	}
1111:	if ($rightType instanceof IntegerRangeType) {
1112:	$rightTypes = $rightType->getFiniteTypes();
1113:	} else {
1114:	$rightTypes = $rightType->getConstantScalarTypes();
1115:	}
1116:
1117:	$leftTypesCount = count($leftTypes);
1118:	$rightTypesCount = count($rightTypes);
1119:
1120:	if ($leftTypesCount === 0 \|\| $rightTypesCount === 0) {
1121:	return self::IS_UNKNOWN;
1122:	}
1123:
1124:	$generalize = $leftTypesCount * $rightTypesCount > self::CALCULATE_SCALARS_LIMIT;
1125:	if ($generalize) {
1126:	return self::IS_SCALAR_TYPE;
1127:	}
1128:
1129:	$resultTypes = [];
1130:	foreach ($leftTypes as $leftTypeInner) {
1131:	foreach ($rightTypes as $rightTypeInner) {
1132:	if ($leftTypeInner instanceof ConstantStringType && $rightTypeInner instanceof ConstantStringType) {
1133:	$resultValue = $operationCallable($leftTypeInner->getValue(), $rightTypeInner->getValue());
1134:	$resultType = $this->getTypeFromValue($resultValue);
1135:	} else {
1136:	$leftNumberType = $leftTypeInner->toNumber();
1137:	$rightNumberType = $rightTypeInner->toNumber();
1138:
1139:	if ($leftNumberType instanceof ErrorType \|\| $rightNumberType instanceof ErrorType) {
1140:	return new ErrorType();
1141:	}
1142:
1143:	if (!$leftNumberType instanceof ConstantScalarType \|\| !$rightNumberType instanceof ConstantScalarType) {
1144:	throw new ShouldNotHappenException();
1145:	}
1146:
1147:	$resultValue = $operationCallable($leftNumberType->getValue(), $rightNumberType->getValue());
1148:	$resultType = $this->getTypeFromValue($resultValue);
1149:	}
1150:	$resultTypes[] = $resultType;
1151:	}
1152:	}
1153:	return TypeCombinator::union(...$resultTypes);
1154:	}
1155:
1156:	public function getBitwiseXorTypeFromTypes(Type $leftType, Type $rightType): Type
1157:	{
1158:	if ($leftType instanceof NeverType \|\| $rightType instanceof NeverType) {
1159:	return $this->getNeverType($leftType, $rightType);
1160:	}
1161:
1162:	$result = $this->getFiniteOrConstantScalarTypes($leftType, $rightType, static fn ($a, $b) => $a ^ $b);
1163:	if ($result instanceof Type) {
1164:	return $result;
1165:	} elseif ($result === self::IS_SCALAR_TYPE) {
1166:	$leftType = $this->optimizeScalarType($leftType);
1167:	$rightType = $this->optimizeScalarType($rightType);
1168:	}
1169:
1170:	if ($leftType instanceof MixedType && $rightType instanceof MixedType) {
1171:	return new BenevolentUnionType([new IntegerType(), new StringType()]);
1172:	}
1173:
1174:	$leftIsString = $leftType->isString();
1175:	$rightIsString = $rightType->isString();
1176:	if (
1177:	($leftIsString->yes() \|\| $leftType instanceof MixedType)
1178:	&& ($rightIsString->yes() \|\| $rightType instanceof MixedType)
1179:	) {
1180:	return new StringType();
1181:	}
1182:	if ($leftIsString->maybe() && $rightIsString->maybe()) {
1183:	return new ErrorType();
1184:	}
1185:
1186:	if ($leftType->toNumber() instanceof ErrorType \|\| $rightType->toNumber() instanceof ErrorType) {
1187:	return new ErrorType();
1188:	}
1189:
1190:	return new IntegerType();
1191:	}
1192:
1193:	/**
1194:	* @param callable(Expr): Type $getTypeCallback
1195:	*/
1196:	public function getSpaceshipType(Expr $left, Expr $right, callable $getTypeCallback): Type
1197:	{
1198:	$callbackLeftType = $getTypeCallback($left);
1199:	$callbackRightType = $getTypeCallback($right);
1200:
1201:	return $this->getSpaceshipTypeFromTypes($callbackLeftType, $callbackRightType);
1202:	}
1203:
1204:	public function getSpaceshipTypeFromTypes(Type $leftTypes, Type $rightTypes): Type
1205:	{
1206:	if ($leftTypes instanceof NeverType \|\| $rightTypes instanceof NeverType) {
1207:	return $this->getNeverType($leftTypes, $rightTypes);
1208:	}
1209:
1210:	$leftTypes = $leftTypes->getConstantScalarTypes();
1211:	$rightTypes = $rightTypes->getConstantScalarTypes();
1212:
1213:	$leftTypesCount = count($leftTypes);
1214:	$rightTypesCount = count($rightTypes);
1215:	if ($leftTypesCount > 0 && $rightTypesCount > 0 && $leftTypesCount * $rightTypesCount <= self::CALCULATE_SCALARS_LIMIT) {
1216:	$resultTypes = [];
1217:	foreach ($leftTypes as $leftType) {
1218:	foreach ($rightTypes as $rightType) {
1219:	$leftValue = $leftType->getValue();
1220:	$rightValue = $rightType->getValue();
1221:	$resultType = $this->getTypeFromValue($leftValue <=> $rightValue);
1222:	$resultTypes[] = $resultType;
1223:	}
1224:	}
1225:	return TypeCombinator::union(...$resultTypes);
1226:	}
1227:
1228:	return IntegerRangeType::fromInterval(-1, 1);
1229:	}
1230:
1231:	/**
1232:	* @param callable(Expr): Type $getTypeCallback
1233:	*/
1234:	public function getDivType(Expr $left, Expr $right, callable $getTypeCallback): Type
1235:	{
1236:	$leftType = $getTypeCallback($left);
1237:	$rightType = $getTypeCallback($right);
1238:
1239:	return $this->getDivTypeFromTypes($left, $right, $leftType, $rightType);
1240:	}
1241:
1242:	public function getDivTypeFromTypes(Expr $left, Expr $right, Type $leftType, Type $rightType): Type
1243:	{
1244:	$leftTypes = $leftType->getConstantScalarTypes();
1245:	$rightTypes = $rightType->getConstantScalarTypes();
1246:	$leftTypesCount = count($leftTypes);
1247:	$rightTypesCount = count($rightTypes);
1248:	if ($leftTypesCount > 0 && $rightTypesCount > 0) {
1249:	$resultTypes = [];
1250:	$generalize = $leftTypesCount * $rightTypesCount > self::CALCULATE_SCALARS_LIMIT;
1251:	if (!$generalize) {
1252:	foreach ($leftTypes as $leftTypeInner) {
1253:	foreach ($rightTypes as $rightTypeInner) {
1254:	$leftNumberType = $leftTypeInner->toNumber();
1255:	$rightNumberType = $rightTypeInner->toNumber();
1256:
1257:	if ($leftNumberType instanceof ErrorType \|\| $rightNumberType instanceof ErrorType) {
1258:	return new ErrorType();
1259:	}
1260:
1261:	if (!$leftNumberType instanceof ConstantScalarType \|\| !$rightNumberType instanceof ConstantScalarType) {
1262:	throw new ShouldNotHappenException();
1263:	}
1264:
1265:	if (in_array($rightNumberType->getValue(), [0, 0.0], true)) {
1266:	return new ErrorType();
1267:	}
1268:
1269:	$resultType = $this->getTypeFromValue($leftNumberType->getValue() / $rightNumberType->getValue()); // @phpstan-ignore binaryOp.invalid
1270:	$resultTypes[] = $resultType;
1271:	}
1272:	}
1273:	return TypeCombinator::union(...$resultTypes);
1274:	}
1275:
1276:	$leftType = $this->optimizeScalarType($leftType);
1277:	$rightType = $this->optimizeScalarType($rightType);
1278:	}
1279:
1280:	$rightScalarValues = $rightType->toNumber()->getConstantScalarValues();
1281:	foreach ($rightScalarValues as $scalarValue) {
1282:	if (in_array($scalarValue, [0, 0.0], true)) {
1283:	return new ErrorType();
1284:	}
1285:	}
1286:
1287:	return $this->resolveCommonMath(new BinaryOp\Div($left, $right), $leftType, $rightType);
1288:	}
1289:
1290:	/**
1291:	* @param callable(Expr): Type $getTypeCallback
1292:	*/
1293:	public function getModType(Expr $left, Expr $right, callable $getTypeCallback): Type
1294:	{
1295:	$leftType = $getTypeCallback($left);
1296:	$rightType = $getTypeCallback($right);
1297:
1298:	return $this->getModTypeFromTypes($left, $right, $leftType, $rightType);
1299:	}
1300:
1301:	public function getModTypeFromTypes(Expr $left, Expr $right, Type $leftType, Type $rightType): Type
1302:	{
1303:	if ($leftType instanceof NeverType \|\| $rightType instanceof NeverType) {
1304:	return $this->getNeverType($leftType, $rightType);
1305:	}
1306:
1307:	$extensionSpecified = $this->operatorTypeSpecifyingExtensionRegistryProvider->getRegistry()
1308:	->callOperatorTypeSpecifyingExtensions(new BinaryOp\Mod($left, $right), $leftType, $rightType);
1309:	if ($extensionSpecified !== null) {
1310:	return $extensionSpecified;
1311:	}
1312:
1313:	if ($leftType->toNumber() instanceof ErrorType \|\| $rightType->toNumber() instanceof ErrorType) {
1314:	return new ErrorType();
1315:	}
1316:
1317:	$leftTypes = $leftType->getConstantScalarTypes();
1318:	$rightTypes = $rightType->getConstantScalarTypes();
1319:	$leftTypesCount = count($leftTypes);
1320:	$rightTypesCount = count($rightTypes);
1321:	if ($leftTypesCount > 0 && $rightTypesCount > 0) {
1322:	$resultTypes = [];
1323:	$generalize = $leftTypesCount * $rightTypesCount > self::CALCULATE_SCALARS_LIMIT;
1324:	if (!$generalize) {
1325:	foreach ($leftTypes as $leftTypeInner) {
1326:	foreach ($rightTypes as $rightTypeInner) {
1327:	$leftNumberType = $leftTypeInner->toNumber();
1328:	$rightNumberType = $rightTypeInner->toNumber();
1329:
1330:	if ($leftNumberType instanceof ErrorType \|\| $rightNumberType instanceof ErrorType) {
1331:	return new ErrorType();
1332:	}
1333:
1334:	if (!$leftNumberType instanceof ConstantScalarType \|\| !$rightNumberType instanceof ConstantScalarType) {
1335:	throw new ShouldNotHappenException();
1336:	}
1337:
1338:	$rightIntegerValue = (int) $rightNumberType->getValue();
1339:	if ($rightIntegerValue === 0) {
1340:	return new ErrorType();
1341:	}
1342:
1343:	$resultType = $this->getTypeFromValue((int) $leftNumberType->getValue() % $rightIntegerValue);
1344:	$resultTypes[] = $resultType;
1345:	}
1346:	}
1347:	return TypeCombinator::union(...$resultTypes);
1348:	}
1349:
1350:	$leftType = $this->optimizeScalarType($leftType);
1351:	$rightType = $this->optimizeScalarType($rightType);
1352:	}
1353:
1354:	$integerType = $rightType->toInteger();
1355:	if ($integerType instanceof ConstantIntegerType && $integerType->getValue() === 1) {
1356:	return new ConstantIntegerType(0);
1357:	}
1358:
1359:	$rightScalarValues = $rightType->toNumber()->getConstantScalarValues();
1360:	foreach ($rightScalarValues as $scalarValue) {
1361:
1362:	if (in_array($scalarValue, [0, 0.0], true)) {
1363:	return new ErrorType();
1364:	}
1365:	}
1366:
1367:	$positiveInt = IntegerRangeType::fromInterval(0, null);
1368:	if ($rightType->isInteger()->yes()) {
1369:	$rangeMin = null;
1370:	$rangeMax = null;
1371:
1372:	if ($rightType instanceof IntegerRangeType) {
1373:	$rangeMax = $rightType->getMax() !== null ? $rightType->getMax() - 1 : null;
1374:	} elseif ($rightType instanceof ConstantIntegerType) {
1375:	$rangeMax = $rightType->getValue() - 1;
1376:	} elseif ($rightType instanceof UnionType) {
1377:	foreach ($rightType->getTypes() as $type) {
1378:	if ($type instanceof IntegerRangeType) {
1379:	if ($type->getMax() === null) {
1380:	$rangeMax = null;
1381:	} else {
1382:	$rangeMax = max($rangeMax, $type->getMax());
1383:	}
1384:	} elseif ($type instanceof ConstantIntegerType) {
1385:	$rangeMax = max($rangeMax, $type->getValue() - 1);
1386:	}
1387:	}
1388:	}
1389:
1390:	if ($positiveInt->isSuperTypeOf($leftType)->yes()) {
1391:	$rangeMin = 0;
1392:	} elseif ($rangeMax !== null) {
1393:	$rangeMin = $rangeMax * -1;
1394:	}
1395:
1396:	return IntegerRangeType::fromInterval($rangeMin, $rangeMax);
1397:	} elseif ($positiveInt->isSuperTypeOf($leftType)->yes()) {
1398:	return IntegerRangeType::fromInterval(0, null);
1399:	}
1400:
1401:	return new IntegerType();
1402:	}
1403:
1404:	/**
1405:	* @param callable(Expr): Type $getTypeCallback
1406:	*/
1407:	public function getPlusType(Expr $left, Expr $right, callable $getTypeCallback): Type
1408:	{
1409:	$leftType = $getTypeCallback($left);
1410:	$rightType = $getTypeCallback($right);
1411:
1412:	return $this->getPlusTypeFromTypes($left, $right, $leftType, $rightType);
1413:	}
1414:
1415:	public function getPlusTypeFromTypes(Expr $left, Expr $right, Type $leftType, Type $rightType): Type
1416:	{
1417:	if ($leftType instanceof NeverType \|\| $rightType instanceof NeverType) {
1418:	return $this->getNeverType($leftType, $rightType);
1419:	}
1420:
1421:	$leftTypes = $leftType->getConstantScalarTypes();
1422:	$rightTypes = $rightType->getConstantScalarTypes();
1423:	$leftTypesCount = count($leftTypes);
1424:	$rightTypesCount = count($rightTypes);
1425:	if ($leftTypesCount > 0 && $rightTypesCount > 0) {
1426:	$resultTypes = [];
1427:	$generalize = $leftTypesCount * $rightTypesCount > self::CALCULATE_SCALARS_LIMIT;
1428:	if (!$generalize) {
1429:	foreach ($leftTypes as $leftTypeInner) {
1430:	foreach ($rightTypes as $rightTypeInner) {
1431:	$leftNumberType = $leftTypeInner->toNumber();
1432:	$rightNumberType = $rightTypeInner->toNumber();
1433:
1434:	if ($leftNumberType instanceof ErrorType \|\| $rightNumberType instanceof ErrorType) {
1435:	return new ErrorType();
1436:	}
1437:
1438:	if (!$leftNumberType instanceof ConstantScalarType \|\| !$rightNumberType instanceof ConstantScalarType) {
1439:	throw new ShouldNotHappenException();
1440:	}
1441:
1442:	$resultType = $this->getTypeFromValue($leftNumberType->getValue() + $rightNumberType->getValue());
1443:	$resultTypes[] = $resultType;
1444:	}
1445:	}
1446:
1447:	return TypeCombinator::union(...$resultTypes);
1448:	}
1449:
1450:	$leftType = $this->optimizeScalarType($leftType);
1451:	$rightType = $this->optimizeScalarType($rightType);
1452:	}
1453:
1454:	$leftConstantArrays = $leftType->getConstantArrays();
1455:	$rightConstantArrays = $rightType->getConstantArrays();
1456:
1457:	$leftCount = count($leftConstantArrays);
1458:	$rightCount = count($rightConstantArrays);
1459:	if ($leftCount > 0 && $rightCount > 0
1460:	&& ($leftCount + $rightCount < ConstantArrayTypeBuilder::ARRAY_COUNT_LIMIT)) {
1461:	$resultTypes = [];
1462:	foreach ($rightConstantArrays as $rightConstantArray) {
1463:	foreach ($leftConstantArrays as $leftConstantArray) {
1464:	$newArrayBuilder = ConstantArrayTypeBuilder::createFromConstantArray($rightConstantArray);
1465:	foreach ($leftConstantArray->getKeyTypes() as $i => $leftKeyType) {
1466:	$optional = $leftConstantArray->isOptionalKey($i);
1467:	$valueType = $leftConstantArray->getOffsetValueType($leftKeyType);
1468:	if (!$optional) {
1469:	if ($rightConstantArray->hasOffsetValueType($leftKeyType)->maybe()) {
1470:	$valueType = TypeCombinator::union($valueType, $rightConstantArray->getOffsetValueType($leftKeyType));
1471:	}
1472:	}
1473:	$newArrayBuilder->setOffsetValueType(
1474:	$leftKeyType,
1475:	$valueType,
1476:	$optional,
1477:	);
1478:	}
1479:	$resultTypes[] = $newArrayBuilder->getArray();
1480:	}
1481:	}
1482:	return TypeCombinator::union(...$resultTypes);
1483:	}
1484:
1485:	$leftIsArray = $leftType->isArray();
1486:	$rightIsArray = $rightType->isArray();
1487:	if ($leftIsArray->yes() && $rightIsArray->yes()) {
1488:	if ($leftType->getIterableKeyType()->equals($rightType->getIterableKeyType())) {
1489:	// to preserve BenevolentUnionType
1490:	$keyType = $leftType->getIterableKeyType();
1491:	} else {
1492:	$keyTypes = [];
1493:	foreach ([
1494:	$leftType->getIterableKeyType(),
1495:	$rightType->getIterableKeyType(),
1496:	] as $keyType) {
1497:	$keyTypes[] = $keyType;
1498:	}
1499:	$keyType = TypeCombinator::union(...$keyTypes);
1500:	}
1501:
1502:	$arrayType = new ArrayType(
1503:	$keyType,
1504:	TypeCombinator::union($leftType->getIterableValueType(), $rightType->getIterableValueType()),
1505:	);
1506:
1507:	$accessories = [];
1508:	foreach ($leftType->getConstantArrays() as $type) {
1509:	foreach ($type->getKeyTypes() as $i => $offsetType) {
1510:	if ($type->isOptionalKey($i)) {
1511:	continue;
1512:	}
1513:	$valueType = $type->getValueTypes()[$i];
1514:	$accessories[] = new HasOffsetValueType($offsetType, $valueType);
1515:	}
1516:	}
1517:
1518:	if ($leftType->isIterableAtLeastOnce()->yes() \|\| $rightType->isIterableAtLeastOnce()->yes()) {
1519:	$accessories[] = new NonEmptyArrayType();
1520:	}
1521:	if ($leftType->isList()->yes() && $rightType->isList()->yes()) {
1522:	$accessories[] = new AccessoryArrayListType();
1523:	}
1524:
1525:	if (count($accessories) > 0) {
1526:	$arrayType = TypeCombinator::intersect($arrayType, ...$accessories);
1527:	}
1528:
1529:	return $arrayType;
1530:	}
1531:
1532:	if ($leftType instanceof MixedType && $rightType instanceof MixedType) {
1533:	if (
1534:	($leftIsArray->no() && $rightIsArray->no())
1535:	) {
1536:	return new BenevolentUnionType([
1537:	new FloatType(),
1538:	new IntegerType(),
1539:	]);
1540:	}
1541:	return new BenevolentUnionType([
1542:	new FloatType(),
1543:	new IntegerType(),
1544:	new ArrayType(new MixedType(), new MixedType()),
1545:	]);
1546:	}
1547:
1548:	if (
1549:	($leftIsArray->yes() && $rightIsArray->no())
1550:	\|\| ($leftIsArray->no() && $rightIsArray->yes())
1551:	) {
1552:	return new ErrorType();
1553:	}
1554:
1555:	if (
1556:	($leftIsArray->yes() && $rightIsArray->maybe())
1557:	\|\| ($leftIsArray->maybe() && $rightIsArray->yes())
1558:	) {
1559:	$resultType = new ArrayType(new MixedType(), new MixedType());
1560:	if ($leftType->isIterableAtLeastOnce()->yes() \|\| $rightType->isIterableAtLeastOnce()->yes()) {
1561:	return TypeCombinator::intersect($resultType, new NonEmptyArrayType());
1562:	}
1563:
1564:	return $resultType;
1565:	}
1566:
1567:	if ($leftIsArray->maybe() && $rightIsArray->maybe()) {
1568:	$plusable = new UnionType([
1569:	new StringType(),
1570:	new FloatType(),
1571:	new IntegerType(),
1572:	new ArrayType(new MixedType(), new MixedType()),
1573:	new BooleanType(),
1574:	]);
1575:
1576:	$plusableSuperTypeOfLeft = $plusable->isSuperTypeOf($leftType)->yes();
1577:	$plusableSuperTypeOfRight = $plusable->isSuperTypeOf($rightType)->yes();
1578:	if ($plusableSuperTypeOfLeft && $plusableSuperTypeOfRight) {
1579:	return TypeCombinator::union($leftType, $rightType);
1580:	}
1581:	if ($plusableSuperTypeOfLeft && $rightType instanceof MixedType) {
1582:	return $leftType;
1583:	}
1584:	if ($plusableSuperTypeOfRight && $leftType instanceof MixedType) {
1585:	return $rightType;
1586:	}
1587:	}
1588:
1589:	return $this->resolveCommonMath(new BinaryOp\Plus($left, $right), $leftType, $rightType);
1590:	}
1591:
1592:	/**
1593:	* @param callable(Expr): Type $getTypeCallback
1594:	*/
1595:	public function getMinusType(Expr $left, Expr $right, callable $getTypeCallback): Type
1596:	{
1597:	$leftType = $getTypeCallback($left);
1598:	$rightType = $getTypeCallback($right);
1599:
1600:	return $this->getMinusTypeFromTypes($left, $right, $leftType, $rightType);
1601:	}
1602:
1603:	public function getMinusTypeFromTypes(Expr $left, Expr $right, Type $leftType, Type $rightType): Type
1604:	{
1605:	$leftTypes = $leftType->getConstantScalarTypes();
1606:	$rightTypes = $rightType->getConstantScalarTypes();
1607:	$leftTypesCount = count($leftTypes);
1608:	$rightTypesCount = count($rightTypes);
1609:	if ($leftTypesCount > 0 && $rightTypesCount > 0) {
1610:	$resultTypes = [];
1611:	$generalize = $leftTypesCount * $rightTypesCount > self::CALCULATE_SCALARS_LIMIT;
1612:	if (!$generalize) {
1613:	foreach ($leftTypes as $leftTypeInner) {
1614:	foreach ($rightTypes as $rightTypeInner) {
1615:	$leftNumberType = $leftTypeInner->toNumber();
1616:	$rightNumberType = $rightTypeInner->toNumber();
1617:
1618:	if ($leftNumberType instanceof ErrorType \|\| $rightNumberType instanceof ErrorType) {
1619:	return new ErrorType();
1620:	}
1621:
1622:	if (!$leftNumberType instanceof ConstantScalarType \|\| !$rightNumberType instanceof ConstantScalarType) {
1623:	throw new ShouldNotHappenException();
1624:	}
1625:
1626:	$resultType = $this->getTypeFromValue($leftNumberType->getValue() - $rightNumberType->getValue());
1627:	$resultTypes[] = $resultType;
1628:	}
1629:	}
1630:
1631:	return TypeCombinator::union(...$resultTypes);
1632:	}
1633:
1634:	$leftType = $this->optimizeScalarType($leftType);
1635:	$rightType = $this->optimizeScalarType($rightType);
1636:	}
1637:
1638:	return $this->resolveCommonMath(new BinaryOp\Minus($left, $right), $leftType, $rightType);
1639:	}
1640:
1641:	/**
1642:	* @param callable(Expr): Type $getTypeCallback
1643:	*/
1644:	public function getMulType(Expr $left, Expr $right, callable $getTypeCallback): Type
1645:	{
1646:	$leftType = $getTypeCallback($left);
1647:	$rightType = $getTypeCallback($right);
1648:
1649:	return $this->getMulTypeFromTypes($left, $right, $leftType, $rightType);
1650:	}
1651:
1652:	public function getMulTypeFromTypes(Expr $left, Expr $right, Type $leftType, Type $rightType): Type
1653:	{
1654:	$leftTypes = $leftType->getConstantScalarTypes();
1655:	$rightTypes = $rightType->getConstantScalarTypes();
1656:	$leftTypesCount = count($leftTypes);
1657:	$rightTypesCount = count($rightTypes);
1658:	if ($leftTypesCount > 0 && $rightTypesCount > 0) {
1659:	$resultTypes = [];
1660:	$generalize = $leftTypesCount * $rightTypesCount > self::CALCULATE_SCALARS_LIMIT;
1661:	if (!$generalize) {
1662:	foreach ($leftTypes as $leftTypeInner) {
1663:	foreach ($rightTypes as $rightTypeInner) {
1664:	$leftNumberType = $leftTypeInner->toNumber();
1665:	$rightNumberType = $rightTypeInner->toNumber();
1666:
1667:	if ($leftNumberType instanceof ErrorType \|\| $rightNumberType instanceof ErrorType) {
1668:	return new ErrorType();
1669:	}
1670:
1671:	if (!$leftNumberType instanceof ConstantScalarType \|\| !$rightNumberType instanceof ConstantScalarType) {
1672:	throw new ShouldNotHappenException();
1673:	}
1674:
1675:	$resultType = $this->getTypeFromValue($leftNumberType->getValue() * $rightNumberType->getValue());
1676:	$resultTypes[] = $resultType;
1677:	}
1678:	}
1679:
1680:	return TypeCombinator::union(...$resultTypes);
1681:	}
1682:
1683:	$leftType = $this->optimizeScalarType($leftType);
1684:	$rightType = $this->optimizeScalarType($rightType);
1685:	}
1686:
1687:	$leftNumberType = $leftType->toNumber();
1688:	if ($leftNumberType instanceof ConstantIntegerType && $leftNumberType->getValue() === 0) {
1689:	if ($rightType->isFloat()->yes()) {
1690:	return new ConstantFloatType(0.0);
1691:	}
1692:	return new ConstantIntegerType(0);
1693:	}
1694:	$rightNumberType = $rightType->toNumber();
1695:	if ($rightNumberType instanceof ConstantIntegerType && $rightNumberType->getValue() === 0) {
1696:	if ($leftType->isFloat()->yes()) {
1697:	return new ConstantFloatType(0.0);
1698:	}
1699:	return new ConstantIntegerType(0);
1700:	}
1701:
1702:	return $this->resolveCommonMath(new BinaryOp\Mul($left, $right), $leftType, $rightType);
1703:	}
1704:
1705:	/**
1706:	* @param callable(Expr): Type $getTypeCallback
1707:	*/
1708:	public function getPowType(Expr $left, Expr $right, callable $getTypeCallback): Type
1709:	{
1710:	$leftType = $getTypeCallback($left);
1711:	$rightType = $getTypeCallback($right);
1712:
1713:	return $this->getPowTypeFromTypes($left, $right, $leftType, $rightType);
1714:	}
1715:
1716:	public function getPowTypeFromTypes(Expr $left, Expr $right, Type $leftType, Type $rightType): Type
1717:	{
1718:	$extensionSpecified = $this->operatorTypeSpecifyingExtensionRegistryProvider->getRegistry()
1719:	->callOperatorTypeSpecifyingExtensions(new BinaryOp\Pow($left, $right), $leftType, $rightType);
1720:	if ($extensionSpecified !== null) {
1721:	return $extensionSpecified;
1722:	}
1723:
1724:	$exponentiatedTyped = $leftType->exponentiate($rightType);
1725:	if (!$exponentiatedTyped instanceof ErrorType) {
1726:	return $exponentiatedTyped;
1727:	}
1728:
1729:	return new ErrorType();
1730:	}
1731:
1732:	/**
1733:	* @param callable(Expr): Type $getTypeCallback
1734:	*/
1735:	public function getShiftLeftType(Expr $left, Expr $right, callable $getTypeCallback): Type
1736:	{
1737:	$leftType = $getTypeCallback($left);
1738:	$rightType = $getTypeCallback($right);
1739:
1740:	return $this->getShiftLeftTypeFromTypes($left, $right, $leftType, $rightType);
1741:	}
1742:
1743:	public function getShiftLeftTypeFromTypes(Expr $left, Expr $right, Type $leftType, Type $rightType): Type
1744:	{
1745:	if ($leftType instanceof NeverType \|\| $rightType instanceof NeverType) {
1746:	return $this->getNeverType($leftType, $rightType);
1747:	}
1748:
1749:	$leftTypes = $leftType->getConstantScalarTypes();
1750:	$rightTypes = $rightType->getConstantScalarTypes();
1751:	$leftTypesCount = count($leftTypes);
1752:	$rightTypesCount = count($rightTypes);
1753:	if ($leftTypesCount > 0 && $rightTypesCount > 0) {
1754:	$resultTypes = [];
1755:	$generalize = $leftTypesCount * $rightTypesCount > self::CALCULATE_SCALARS_LIMIT;
1756:	if (!$generalize) {
1757:	foreach ($leftTypes as $leftTypeInner) {
1758:	foreach ($rightTypes as $rightTypeInner) {
1759:	$leftNumberType = $leftTypeInner->toNumber();
1760:	$rightNumberType = $rightTypeInner->toNumber();
1761:
1762:	if ($leftNumberType instanceof ErrorType \|\| $rightNumberType instanceof ErrorType) {
1763:	return new ErrorType();
1764:	}
1765:
1766:	if (!$leftNumberType instanceof ConstantScalarType \|\| !$rightNumberType instanceof ConstantScalarType) {
1767:	throw new ShouldNotHappenException();
1768:	}
1769:
1770:	if ($rightNumberType->getValue() < 0) {
1771:	return new ErrorType();
1772:	}
1773:
1774:	$resultType = $this->getTypeFromValue(intval($leftNumberType->getValue()) << intval($rightNumberType->getValue()));
1775:	$resultTypes[] = $resultType;
1776:	}
1777:	}
1778:
1779:	return TypeCombinator::union(...$resultTypes);
1780:	}
1781:
1782:	$leftType = $this->optimizeScalarType($leftType);
1783:	$rightType = $this->optimizeScalarType($rightType);
1784:	}
1785:
1786:	$leftNumberType = $leftType->toNumber();
1787:	$rightNumberType = $rightType->toNumber();
1788:
1789:	if ($leftNumberType instanceof ErrorType \|\| $rightNumberType instanceof ErrorType) {
1790:	return new ErrorType();
1791:	}
1792:
1793:	return $this->resolveCommonMath(new Expr\BinaryOp\ShiftLeft($left, $right), $leftType, $rightType);
1794:	}
1795:
1796:	/**
1797:	* @param callable(Expr): Type $getTypeCallback
1798:	*/
1799:	public function getShiftRightType(Expr $left, Expr $right, callable $getTypeCallback): Type
1800:	{
1801:	$leftType = $getTypeCallback($left);
1802:	$rightType = $getTypeCallback($right);
1803:
1804:	return $this->getShiftRightTypeFromTypes($left, $right, $leftType, $rightType);
1805:	}
1806:
1807:	public function getShiftRightTypeFromTypes(Expr $left, Expr $right, Type $leftType, Type $rightType): Type
1808:	{
1809:	if ($leftType instanceof NeverType \|\| $rightType instanceof NeverType) {
1810:	return $this->getNeverType($leftType, $rightType);
1811:	}
1812:
1813:	$leftTypes = $leftType->getConstantScalarTypes();
1814:	$rightTypes = $rightType->getConstantScalarTypes();
1815:	$leftTypesCount = count($leftTypes);
1816:	$rightTypesCount = count($rightTypes);
1817:	if ($leftTypesCount > 0 && $rightTypesCount > 0) {
1818:	$resultTypes = [];
1819:	$generalize = $leftTypesCount * $rightTypesCount > self::CALCULATE_SCALARS_LIMIT;
1820:	if (!$generalize) {
1821:	foreach ($leftTypes as $leftTypeInner) {
1822:	foreach ($rightTypes as $rightTypeInner) {
1823:	$leftNumberType = $leftTypeInner->toNumber();
1824:	$rightNumberType = $rightTypeInner->toNumber();
1825:
1826:	if ($leftNumberType instanceof ErrorType \|\| $rightNumberType instanceof ErrorType) {
1827:	return new ErrorType();
1828:	}
1829:
1830:	if (!$leftNumberType instanceof ConstantScalarType \|\| !$rightNumberType instanceof ConstantScalarType) {
1831:	throw new ShouldNotHappenException();
1832:	}
1833:
1834:	if ($rightNumberType->getValue() < 0) {
1835:	return new ErrorType();
1836:	}
1837:
1838:	$resultType = $this->getTypeFromValue(intval($leftNumberType->getValue()) >> intval($rightNumberType->getValue()));
1839:	$resultTypes[] = $resultType;
1840:	}
1841:	}
1842:
1843:	return TypeCombinator::union(...$resultTypes);
1844:	}
1845:
1846:	$leftType = $this->optimizeScalarType($leftType);
1847:	$rightType = $this->optimizeScalarType($rightType);
1848:	}
1849:
1850:	$leftNumberType = $leftType->toNumber();
1851:	$rightNumberType = $rightType->toNumber();
1852:
1853:	if ($leftNumberType instanceof ErrorType \|\| $rightNumberType instanceof ErrorType) {
1854:	return new ErrorType();
1855:	}
1856:
1857:	return $this->resolveCommonMath(new Expr\BinaryOp\ShiftRight($left, $right), $leftType, $rightType);
1858:	}
1859:
1860:	private function optimizeScalarType(Type $type): Type
1861:	{
1862:	$types = [];
1863:	if ($type->isInteger()->yes()) {
1864:	$types[] = new IntegerType();
1865:	}
1866:	if ($type->isString()->yes()) {
1867:	$types[] = new StringType();
1868:	}
1869:	if ($type->isFloat()->yes()) {
1870:	$types[] = new FloatType();
1871:	}
1872:	if ($type->isNull()->yes()) {
1873:	$types[] = new NullType();
1874:	}
1875:
1876:	if (count($types) === 0) {
1877:	return new ErrorType();
1878:	}
1879:
1880:	if (count($types) === 1) {
1881:	return $types[0];
1882:	}
1883:
1884:	return new UnionType($types);
1885:	}
1886:
1887:	/**
1888:	* @return TypeResult<BooleanType>
1889:	*/
1890:	public function resolveIdenticalType(Type $leftType, Type $rightType): TypeResult
1891:	{
1892:	if ($leftType instanceof NeverType \|\| $rightType instanceof NeverType) {
1893:	return new TypeResult(new ConstantBooleanType(false), []);
1894:	}
1895:
1896:	if ($leftType instanceof ConstantScalarType && $rightType instanceof ConstantScalarType) {
1897:	return new TypeResult(new ConstantBooleanType($leftType->getValue() === $rightType->getValue()), []);
1898:	}
1899:
1900:	$leftTypeFiniteTypes = $leftType->getFiniteTypes();
1901:	$rightTypeFiniteType = $rightType->getFiniteTypes();
1902:	if (count($leftTypeFiniteTypes) === 1 && count($rightTypeFiniteType) === 1) {
1903:	return new TypeResult(new ConstantBooleanType($leftTypeFiniteTypes[0]->equals($rightTypeFiniteType[0])), []);
1904:	}
1905:
1906:	$leftIsSuperTypeOfRight = $leftType->isSuperTypeOf($rightType);
1907:	$rightIsSuperTypeOfLeft = $rightType->isSuperTypeOf($leftType);
1908:	if ($leftIsSuperTypeOfRight->no() && $rightIsSuperTypeOfLeft->no()) {
1909:	return new TypeResult(new ConstantBooleanType(false), array_merge($leftIsSuperTypeOfRight->reasons, $rightIsSuperTypeOfLeft->reasons));
1910:	}
1911:
1912:	if ($leftType instanceof ConstantArrayType && $rightType instanceof ConstantArrayType) {
1913:	return $this->resolveConstantArrayTypeComparison($leftType, $rightType, fn ($leftValueType, $rightValueType): TypeResult => $this->resolveIdenticalType($leftValueType, $rightValueType));
1914:	}
1915:
1916:	return new TypeResult(new BooleanType(), []);
1917:	}
1918:
1919:	/**
1920:	* @return TypeResult<BooleanType>
1921:	*/
1922:	public function resolveEqualType(Type $leftType, Type $rightType): TypeResult
1923:	{
1924:	if (
1925:	($leftType->isEnum()->yes() && $rightType->isTrue()->no())
1926:	\|\| ($rightType->isEnum()->yes() && $leftType->isTrue()->no())
1927:	) {
1928:	return $this->resolveIdenticalType($leftType, $rightType);
1929:	}
1930:
1931:	if ($leftType instanceof ConstantArrayType && $rightType instanceof ConstantArrayType) {
1932:	return $this->resolveConstantArrayTypeComparison($leftType, $rightType, fn ($leftValueType, $rightValueType): TypeResult => $this->resolveEqualType($leftValueType, $rightValueType));
1933:	}
1934:
1935:	return new TypeResult($leftType->looseCompare($rightType, $this->phpVersion), []);
1936:	}
1937:
1938:	/**
1939:	* @param callable(Type, Type): TypeResult<BooleanType> $valueComparisonCallback
1940:	* @return TypeResult<BooleanType>
1941:	*/
1942:	private function resolveConstantArrayTypeComparison(ConstantArrayType $leftType, ConstantArrayType $rightType, callable $valueComparisonCallback): TypeResult
1943:	{
1944:	$leftKeyTypes = $leftType->getKeyTypes();
1945:	$rightKeyTypes = $rightType->getKeyTypes();
1946:	$leftValueTypes = $leftType->getValueTypes();
1947:	$rightValueTypes = $rightType->getValueTypes();
1948:
1949:	$resultType = new ConstantBooleanType(true);
1950:
1951:	foreach ($leftKeyTypes as $i => $leftKeyType) {
1952:	$leftOptional = $leftType->isOptionalKey($i);
1953:	if ($leftOptional) {
1954:	$resultType = new BooleanType();
1955:	}
1956:
1957:	if (count($rightKeyTypes) === 0) {
1958:	if (!$leftOptional) {
1959:	return new TypeResult(new ConstantBooleanType(false), []);
1960:	}
1961:	continue;
1962:	}
1963:
1964:	$found = false;
1965:	foreach ($rightKeyTypes as $j => $rightKeyType) {
1966:	unset($rightKeyTypes[$j]);
1967:
1968:	if ($leftKeyType->equals($rightKeyType)) {
1969:	$found = true;
1970:	break;
1971:	} elseif (!$rightType->isOptionalKey($j)) {
1972:	return new TypeResult(new ConstantBooleanType(false), []);
1973:	}
1974:	}
1975:
1976:	if (!$found) {
1977:	if (!$leftOptional) {
1978:	return new TypeResult(new ConstantBooleanType(false), []);
1979:	}
1980:	continue;
1981:	}
1982:
1983:	if (!isset($j)) {
1984:	throw new ShouldNotHappenException();
1985:	}
1986:
1987:	$rightOptional = $rightType->isOptionalKey($j);
1988:	if ($rightOptional) {
1989:	$resultType = new BooleanType();
1990:	if ($leftOptional) {
1991:	continue;
1992:	}
1993:	}
1994:
1995:	$leftIdenticalToRightResult = $valueComparisonCallback($leftValueTypes[$i], $rightValueTypes[$j]);
1996:	$leftIdenticalToRight = $leftIdenticalToRightResult->type;
1997:	if ($leftIdenticalToRight->isFalse()->yes()) {
1998:	return $leftIdenticalToRightResult;
1999:	}
2000:	$resultType = TypeCombinator::union($resultType, $leftIdenticalToRight);
2001:	}
2002:
2003:	foreach (array_keys($rightKeyTypes) as $j) {
2004:	if (!$rightType->isOptionalKey($j)) {
2005:	return new TypeResult(new ConstantBooleanType(false), []);
2006:	}
2007:	$resultType = new BooleanType();
2008:	}
2009:
2010:	return new TypeResult($resultType->toBoolean(), []);
2011:	}
2012:
2013:	/**
2014:	* @param BinaryOp\Plus\|BinaryOp\Minus\|BinaryOp\Mul\|BinaryOp\Div\|BinaryOp\ShiftLeft\|BinaryOp\ShiftRight $expr
2015:	*/
2016:	private function resolveCommonMath(Expr\BinaryOp $expr, Type $leftType, Type $rightType): Type
2017:	{
2018:	$types = TypeCombinator::union($leftType, $rightType);
2019:	$leftNumberType = $leftType->toNumber();
2020:	$rightNumberType = $rightType->toNumber();
2021:
2022:	if (
2023:	!$types instanceof MixedType
2024:	&& (
2025:	$rightNumberType instanceof IntegerRangeType
2026:	\|\| $rightNumberType instanceof ConstantIntegerType
2027:	\|\| $rightNumberType instanceof UnionType
2028:	)
2029:	) {
2030:	if ($leftNumberType instanceof IntegerRangeType \|\| $leftNumberType instanceof ConstantIntegerType) {
2031:	return $this->integerRangeMath(
2032:	$leftNumberType,
2033:	$expr,
2034:	$rightNumberType,
2035:	);
2036:	} elseif ($leftNumberType instanceof UnionType) {
2037:	$unionParts = [];
2038:
2039:	foreach ($leftNumberType->getTypes() as $type) {
2040:	$numberType = $type->toNumber();
2041:	if ($numberType instanceof IntegerRangeType \|\| $numberType instanceof ConstantIntegerType) {
2042:	$unionParts[] = $this->integerRangeMath($numberType, $expr, $rightNumberType);
2043:	} else {
2044:	$unionParts[] = $numberType;
2045:	}
2046:	}
2047:
2048:	$union = TypeCombinator::union(...$unionParts);
2049:	if ($leftNumberType instanceof BenevolentUnionType) {
2050:	return TypeUtils::toBenevolentUnion($union)->toNumber();
2051:	}
2052:
2053:	return $union->toNumber();
2054:	}
2055:	}
2056:
2057:	$specifiedTypes = $this->operatorTypeSpecifyingExtensionRegistryProvider->getRegistry()
2058:	->callOperatorTypeSpecifyingExtensions($expr, $leftType, $rightType);
2059:	if ($specifiedTypes !== null) {
2060:	return $specifiedTypes;
2061:	}
2062:
2063:	if (
2064:	$leftType->isArray()->yes()
2065:	\|\| $rightType->isArray()->yes()
2066:	\|\| $types->isArray()->yes()
2067:	) {
2068:	return new ErrorType();
2069:	}
2070:
2071:	if ($leftNumberType instanceof ErrorType \|\| $rightNumberType instanceof ErrorType) {
2072:	return new ErrorType();
2073:	}
2074:	if ($leftNumberType instanceof NeverType \|\| $rightNumberType instanceof NeverType) {
2075:	return $this->getNeverType($leftNumberType, $rightNumberType);
2076:	}
2077:
2078:	if (
2079:	$leftNumberType->isFloat()->yes()
2080:	\|\| $rightNumberType->isFloat()->yes()
2081:	) {
2082:	if ($expr instanceof Expr\BinaryOp\ShiftLeft \|\| $expr instanceof Expr\BinaryOp\ShiftRight) {
2083:	return new IntegerType();
2084:	}
2085:	return new FloatType();
2086:	}
2087:
2088:	$resultType = TypeCombinator::union($leftNumberType, $rightNumberType);
2089:	if ($expr instanceof Expr\BinaryOp\Div) {
2090:	if ($types instanceof MixedType \|\| $resultType->isInteger()->yes()) {
2091:	return new BenevolentUnionType([new IntegerType(), new FloatType()]);
2092:	}
2093:
2094:	return new UnionType([new IntegerType(), new FloatType()]);
2095:	}
2096:
2097:	if ($types instanceof MixedType
2098:	\|\| $leftType instanceof BenevolentUnionType
2099:	\|\| $rightType instanceof BenevolentUnionType
2100:	) {
2101:	return TypeUtils::toBenevolentUnion($resultType);
2102:	}
2103:
2104:	return $resultType;
2105:	}
2106:
2107:	/**
2108:	* @param ConstantIntegerType\|IntegerRangeType $range
2109:	* @param BinaryOp\Div\|BinaryOp\Minus\|BinaryOp\Mul\|BinaryOp\Plus\|BinaryOp\ShiftLeft\|BinaryOp\ShiftRight $node
2110:	*/
2111:	private function integerRangeMath(Type $range, BinaryOp $node, Type $operand): Type
2112:	{
2113:	if ($range instanceof IntegerRangeType) {
2114:	$rangeMin = $range->getMin();
2115:	$rangeMax = $range->getMax();
2116:	} else {
2117:	$rangeMin = $range->getValue();
2118:	$rangeMax = $rangeMin;
2119:	}
2120:
2121:	if ($operand instanceof UnionType) {
2122:
2123:	$unionParts = [];
2124:
2125:	foreach ($operand->getTypes() as $type) {
2126:	$numberType = $type->toNumber();
2127:	if ($numberType instanceof IntegerRangeType \|\| $numberType instanceof ConstantIntegerType) {
2128:	$unionParts[] = $this->integerRangeMath($range, $node, $numberType);
2129:	} else {
2130:	$unionParts[] = $type->toNumber();
2131:	}
2132:	}
2133:
2134:	$union = TypeCombinator::union(...$unionParts);
2135:	if ($operand instanceof BenevolentUnionType) {
2136:	return TypeUtils::toBenevolentUnion($union)->toNumber();
2137:	}
2138:
2139:	return $union->toNumber();
2140:	}
2141:
2142:	$operand = $operand->toNumber();
2143:	if ($operand instanceof IntegerRangeType) {
2144:	$operandMin = $operand->getMin();
2145:	$operandMax = $operand->getMax();
2146:	} elseif ($operand instanceof ConstantIntegerType) {
2147:	$operandMin = $operand->getValue();
2148:	$operandMax = $operand->getValue();
2149:	} else {
2150:	return $operand;
2151:	}
2152:
2153:	if ($node instanceof BinaryOp\Plus) {
2154:	if ($operand instanceof ConstantIntegerType) {
2155:	/** @var int\|float\|null $min */
2156:	$min = $rangeMin !== null ? $rangeMin + $operand->getValue() : null;
2157:
2158:	/** @var int\|float\|null $max */
2159:	$max = $rangeMax !== null ? $rangeMax + $operand->getValue() : null;
2160:	} else {
2161:	/** @var int\|float\|null $min */
2162:	$min = $rangeMin !== null && $operand->getMin() !== null ? $rangeMin + $operand->getMin() : null;
2163:
2164:	/** @var int\|float\|null $max */
2165:	$max = $rangeMax !== null && $operand->getMax() !== null ? $rangeMax + $operand->getMax() : null;
2166:	}
2167:	} elseif ($node instanceof BinaryOp\Minus) {
2168:	if ($operand instanceof ConstantIntegerType) {
2169:	/** @var int\|float\|null $min */
2170:	$min = $rangeMin !== null ? $rangeMin - $operand->getValue() : null;
2171:
2172:	/** @var int\|float\|null $max */
2173:	$max = $rangeMax !== null ? $rangeMax - $operand->getValue() : null;
2174:	} else {
2175:	if ($rangeMin === $rangeMax && $rangeMin !== null
2176:	&& ($operand->getMin() === null \|\| $operand->getMax() === null)) {
2177:	$min = null;
2178:	$max = $rangeMin;
2179:	} else {
2180:	if ($operand->getMin() === null) {
2181:	$min = null;
2182:	} elseif ($rangeMin !== null) {
2183:	if ($operand->getMax() !== null) {
2184:	/** @var int\|float $min */
2185:	$min = $rangeMin - $operand->getMax();
2186:	} else {
2187:	/** @var int\|float $min */
2188:	$min = $rangeMin - $operand->getMin();
2189:	}
2190:	} else {
2191:	$min = null;
2192:	}
2193:
2194:	if ($operand->getMax() === null) {
2195:	$min = null;
2196:	$max = null;
2197:	} elseif ($rangeMax !== null) {
2198:	if ($rangeMin !== null && $operand->getMin() === null) {
2199:	/** @var int\|float $min */
2200:	$min = $rangeMin - $operand->getMax();
2201:	$max = null;
2202:	} elseif ($operand->getMin() !== null) {
2203:	/** @var int\|float $max */
2204:	$max = $rangeMax - $operand->getMin();
2205:	} else {
2206:	$max = null;
2207:	}
2208:	} else {
2209:	$max = null;
2210:	}
2211:
2212:	if ($min !== null && $max !== null && $min > $max) {
2213:	[$min, $max] = [$max, $min];
2214:	}
2215:	}
2216:	}
2217:	} elseif ($node instanceof Expr\BinaryOp\Mul) {
2218:	$min1 = $rangeMin === 0 \|\| $operandMin === 0 ? 0 : ($rangeMin ?? -INF) * ($operandMin ?? -INF);
2219:	$min2 = $rangeMin === 0 \|\| $operandMax === 0 ? 0 : ($rangeMin ?? -INF) * ($operandMax ?? INF);
2220:	$max1 = $rangeMax === 0 \|\| $operandMin === 0 ? 0 : ($rangeMax ?? INF) * ($operandMin ?? -INF);
2221:	$max2 = $rangeMax === 0 \|\| $operandMax === 0 ? 0 : ($rangeMax ?? INF) * ($operandMax ?? INF);
2222:
2223:	$min = min($min1, $min2, $max1, $max2);
2224:	$max = max($min1, $min2, $max1, $max2);
2225:
2226:	if (!is_finite($min)) {
2227:	$min = null;
2228:	}
2229:	if (!is_finite($max)) {
2230:	$max = null;
2231:	}
2232:	} elseif ($node instanceof Expr\BinaryOp\Div) {
2233:	if ($operand instanceof ConstantIntegerType) {
2234:	$min = $rangeMin !== null && $operand->getValue() !== 0 ? $rangeMin / $operand->getValue() : null;
2235:	$max = $rangeMax !== null && $operand->getValue() !== 0 ? $rangeMax / $operand->getValue() : null;
2236:	} else {
2237:	// Avoid division by zero when looking for the min and the max by using the closest int
2238:	$operandMin = $operandMin !== 0 ? $operandMin : 1;
2239:	$operandMax = $operandMax !== 0 ? $operandMax : -1;
2240:
2241:	if (
2242:	($operandMin < 0 \|\| $operandMin === null)
2243:	&& ($operandMax > 0 \|\| $operandMax === null)
2244:	) {
2245:	$negativeOperand = IntegerRangeType::fromInterval($operandMin, 0);
2246:	assert($negativeOperand instanceof IntegerRangeType);
2247:	$positiveOperand = IntegerRangeType::fromInterval(0, $operandMax);
2248:	assert($positiveOperand instanceof IntegerRangeType);
2249:
2250:	$result = TypeCombinator::union(
2251:	$this->integerRangeMath($range, $node, $negativeOperand),
2252:	$this->integerRangeMath($range, $node, $positiveOperand),
2253:	)->toNumber();
2254:
2255:	if ($result->equals(new UnionType([new IntegerType(), new FloatType()]))) {
2256:	return new BenevolentUnionType([new IntegerType(), new FloatType()]);
2257:	}
2258:
2259:	return $result;
2260:	}
2261:	if (
2262:	($rangeMin < 0 \|\| $rangeMin === null)
2263:	&& ($rangeMax > 0 \|\| $rangeMax === null)
2264:	) {
2265:	$negativeRange = IntegerRangeType::fromInterval($rangeMin, 0);
2266:	assert($negativeRange instanceof IntegerRangeType);
2267:	$positiveRange = IntegerRangeType::fromInterval(0, $rangeMax);
2268:	assert($positiveRange instanceof IntegerRangeType);
2269:
2270:	$result = TypeCombinator::union(
2271:	$this->integerRangeMath($negativeRange, $node, $operand),
2272:	$this->integerRangeMath($positiveRange, $node, $operand),
2273:	)->toNumber();
2274:
2275:	if ($result->equals(new UnionType([new IntegerType(), new FloatType()]))) {
2276:	return new BenevolentUnionType([new IntegerType(), new FloatType()]);
2277:	}
2278:
2279:	return $result;
2280:	}
2281:
2282:	$rangeMinSign = ($rangeMin ?? -INF) <=> 0;
2283:	$rangeMaxSign = ($rangeMax ?? INF) <=> 0;
2284:
2285:	$min1 = $operandMin !== null ? ($rangeMin ?? -INF) / $operandMin : $rangeMinSign * -0.1;
2286:	$min2 = $operandMax !== null ? ($rangeMin ?? -INF) / $operandMax : $rangeMinSign * 0.1;
2287:	$max1 = $operandMin !== null ? ($rangeMax ?? INF) / $operandMin : $rangeMaxSign * -0.1;
2288:	$max2 = $operandMax !== null ? ($rangeMax ?? INF) / $operandMax : $rangeMaxSign * 0.1;
2289:
2290:	$min = min($min1, $min2, $max1, $max2);
2291:	$max = max($min1, $min2, $max1, $max2);
2292:
2293:	if ($min === -INF) {
2294:	$min = null;
2295:	}
2296:	if ($max === INF) {
2297:	$max = null;
2298:	}
2299:	}
2300:
2301:	if ($min !== null && $max !== null && $min > $max) {
2302:	[$min, $max] = [$max, $min];
2303:	}
2304:
2305:	if (is_float($min)) {
2306:	$min = (int) ceil($min);
2307:	}
2308:	if (is_float($max)) {
2309:	$max = (int) floor($max);
2310:	}
2311:
2312:	// invert maximas on division with negative constants
2313:	if ((($range instanceof ConstantIntegerType && $range->getValue() < 0)
2314:	\|\| ($operand instanceof ConstantIntegerType && $operand->getValue() < 0))
2315:	&& ($min === null \|\| $max === null)) {
2316:	[$min, $max] = [$max, $min];
2317:	}
2318:
2319:	if ($min === null && $max === null) {
2320:	return new BenevolentUnionType([new IntegerType(), new FloatType()]);
2321:	}
2322:
2323:	return TypeCombinator::union(IntegerRangeType::fromInterval($min, $max), new FloatType());
2324:	} elseif ($node instanceof Expr\BinaryOp\ShiftLeft) {
2325:	if (!$operand instanceof ConstantIntegerType) {
2326:	return new IntegerType();
2327:	}
2328:	if ($operand->getValue() < 0) {
2329:	return new ErrorType();
2330:	}
2331:	$min = $rangeMin !== null ? intval($rangeMin) << $operand->getValue() : null;
2332:	$max = $rangeMax !== null ? intval($rangeMax) << $operand->getValue() : null;
2333:	} elseif ($node instanceof Expr\BinaryOp\ShiftRight) {
2334:	if (!$operand instanceof ConstantIntegerType) {
2335:	return new IntegerType();
2336:	}
2337:	if ($operand->getValue() < 0) {
2338:	return new ErrorType();
2339:	}
2340:	$min = $rangeMin !== null ? intval($rangeMin) >> $operand->getValue() : null;
2341:	$max = $rangeMax !== null ? intval($rangeMax) >> $operand->getValue() : null;
2342:	} else {
2343:	throw new ShouldNotHappenException();
2344:	}
2345:
2346:	if (is_float($min)) {
2347:	$min = null;
2348:	}
2349:	if (is_float($max)) {
2350:	$max = null;
2351:	}
2352:
2353:	return IntegerRangeType::fromInterval($min, $max);
2354:	}
2355:
2356:	/**
2357:	* @param callable(Expr): Type $getTypeCallback
2358:	*/
2359:	public function getClassConstFetchTypeByReflection(Name\|Expr $class, string $constantName, ?ClassReflection $classReflection, callable $getTypeCallback): Type
2360:	{
2361:	$isObject = false;
2362:	if ($class instanceof Name) {
2363:	$constantClass = (string) $class;
2364:	$constantClassType = new ObjectType($constantClass);
2365:	$namesToResolve = [
2366:	'self',
2367:	'parent',
2368:	];
2369:	if ($classReflection !== null) {
2370:	if ($classReflection->isFinal()) {
2371:	$namesToResolve[] = 'static';
2372:	} elseif (strtolower($constantClass) === 'static') {
2373:	if (strtolower($constantName) === 'class') {
2374:	return new GenericClassStringType(new StaticType($classReflection));
2375:	}
2376:
2377:	$namesToResolve[] = 'static';
2378:	$isObject = true;
2379:	}
2380:	}
2381:	if (in_array(strtolower($constantClass), $namesToResolve, true)) {
2382:	$resolvedName = $this->resolveName($class, $classReflection);
2383:	if (strtolower($resolvedName) === 'parent' && strtolower($constantName) === 'class') {
2384:	return new ClassStringType();
2385:	}
2386:	$constantClassType = $this->resolveTypeByName($class, $classReflection);
2387:	}
2388:
2389:	if (strtolower($constantName) === 'class') {
2390:	return new ConstantStringType($constantClassType->getClassName(), true);
2391:	}
2392:	} elseif ($class instanceof String_ && strtolower($constantName) === 'class') {
2393:	return new ConstantStringType($class->value, true);
2394:	} else {
2395:	$constantClassType = $getTypeCallback($class);
2396:	$isObject = true;
2397:	}
2398:
2399:	if (strtolower($constantName) === 'class') {
2400:	return TypeTraverser::map(
2401:	$constantClassType,
2402:	function (Type $type, callable $traverse): Type {
2403:	if ($type instanceof UnionType \|\| $type instanceof IntersectionType) {
2404:	return $traverse($type);
2405:	}
2406:
2407:	if ($type instanceof NullType) {
2408:	return $type;
2409:	}
2410:
2411:	if ($type instanceof EnumCaseObjectType) {
2412:	return new IntersectionType([
2413:	new GenericClassStringType(new ObjectType($type->getClassName())),
2414:	new AccessoryLiteralStringType(),
2415:	]);
2416:	}
2417:
2418:	$objectClassNames = $type->getObjectClassNames();
2419:	if (count($objectClassNames) > 1) {
2420:	throw new ShouldNotHappenException();
2421:	}
2422:
2423:	if ($type instanceof TemplateType && $objectClassNames === []) {
2424:	return new IntersectionType([
2425:	new GenericClassStringType($type),
2426:	new AccessoryLiteralStringType(),
2427:	]);
2428:	} elseif ($objectClassNames !== [] && $this->getReflectionProvider()->hasClass($objectClassNames[0])) {
2429:	$reflection = $this->getReflectionProvider()->getClass($objectClassNames[0]);
2430:	if ($reflection->isFinalByKeyword()) {
2431:	return new ConstantStringType($reflection->getName(), true);
2432:	}
2433:
2434:	return new IntersectionType([
2435:	new GenericClassStringType($type),
2436:	new AccessoryLiteralStringType(),
2437:	]);
2438:	} elseif ($type->isObject()->yes()) {
2439:	return new IntersectionType([
2440:	new ClassStringType(),
2441:	new AccessoryLiteralStringType(),
2442:	]);
2443:	}
2444:
2445:	return new ErrorType();
2446:	},
2447:	);
2448:	}
2449:
2450:	if ($constantClassType->isClassString()->yes()) {
2451:	if ($constantClassType->isConstantScalarValue()->yes()) {
2452:	$isObject = false;
2453:	}
2454:	$constantClassType = $constantClassType->getClassStringObjectType();
2455:	}
2456:
2457:	$types = [];
2458:	foreach ($constantClassType->getObjectClassNames() as $referencedClass) {
2459:	if (!$this->getReflectionProvider()->hasClass($referencedClass)) {
2460:	continue;
2461:	}
2462:
2463:	$constantClassReflection = $this->getReflectionProvider()->getClass($referencedClass);
2464:	if (!$constantClassReflection->hasConstant($constantName)) {
2465:	if ($constantClassReflection->getName() === 'Attribute' && $constantName === 'TARGET_CONSTANT') {
2466:	return new ConstantIntegerType(1 << 16);
2467:	}
2468:	continue;
2469:	}
2470:
2471:	if ($constantClassReflection->isEnum() && $constantClassReflection->hasEnumCase($constantName)) {
2472:	$types[] = new EnumCaseObjectType($constantClassReflection->getName(), $constantName);
2473:	continue;
2474:	}
2475:
2476:	$resolvingName = sprintf('%s::%s', $constantClassReflection->getName(), $constantName);
2477:	if (array_key_exists($resolvingName, $this->currentlyResolvingClassConstant)) {
2478:	$types[] = new MixedType();
2479:	continue;
2480:	}
2481:
2482:	$this->currentlyResolvingClassConstant[$resolvingName] = true;
2483:
2484:	if (!$isObject) {
2485:	$reflectionConstant = $constantClassReflection->getNativeReflection()->getReflectionConstant($constantName);
2486:	if ($reflectionConstant === false) {
2487:	unset($this->currentlyResolvingClassConstant[$resolvingName]);
2488:	continue;
2489:	}
2490:	$reflectionConstantDeclaringClass = $reflectionConstant->getDeclaringClass();
2491:	$constantType = $this->getType($reflectionConstant->getValueExpression(), InitializerExprContext::fromClass($reflectionConstantDeclaringClass->getName(), $reflectionConstantDeclaringClass->getFileName() ?: null));
2492:	$nativeType = null;
2493:	if ($reflectionConstant->getType() !== null) {
2494:	$nativeType = TypehintHelper::decideTypeFromReflection($reflectionConstant->getType(), selfClass: $constantClassReflection);
2495:	}
2496:	$types[] = $this->constantResolver->resolveClassConstantType(
2497:	$constantClassReflection->getName(),
2498:	$constantName,
2499:	$constantType,
2500:	$nativeType,
2501:	);
2502:	unset($this->currentlyResolvingClassConstant[$resolvingName]);
2503:	continue;
2504:	}
2505:
2506:	$constantReflection = $constantClassReflection->getConstant($constantName);
2507:	if (
2508:	!$constantClassReflection->isFinal()
2509:	&& !$constantReflection->isFinal()
2510:	&& !$constantReflection->hasPhpDocType()
2511:	&& !$constantReflection->hasNativeType()
2512:	) {
2513:	unset($this->currentlyResolvingClassConstant[$resolvingName]);
2514:	return new MixedType();
2515:	}
2516:
2517:	if (!$constantClassReflection->isFinal()) {
2518:	$constantType = $constantReflection->getValueType();
2519:	} else {
2520:	$constantType = $this->getType($constantReflection->getValueExpr(), InitializerExprContext::fromClassReflection($constantReflection->getDeclaringClass()));
2521:	}
2522:
2523:	$nativeType = $constantReflection->getNativeType();
2524:	$constantType = $this->constantResolver->resolveClassConstantType(
2525:	$constantClassReflection->getName(),
2526:	$constantName,
2527:	$constantType,
2528:	$nativeType,
2529:	);
2530:	unset($this->currentlyResolvingClassConstant[$resolvingName]);
2531:	$types[] = $constantType;
2532:	}
2533:
2534:	if (count($types) > 0) {
2535:	return TypeCombinator::union(...$types);
2536:	}
2537:
2538:	if (!$constantClassType->hasConstant($constantName)->yes()) {
2539:	return new ErrorType();
2540:	}
2541:
2542:	return $constantClassType->getConstant($constantName)->getValueType();
2543:	}
2544:
2545:	/**
2546:	* @param callable(Expr): Type $getTypeCallback
2547:	*/
2548:	public function getClassConstFetchType(Name\|Expr $class, string $constantName, ?string $className, callable $getTypeCallback): Type
2549:	{
2550:	$classReflection = null;
2551:	if ($className !== null && $this->getReflectionProvider()->hasClass($className)) {
2552:	$classReflection = $this->getReflectionProvider()->getClass($className);
2553:	}
2554:
2555:	return $this->getClassConstFetchTypeByReflection($class, $constantName, $classReflection, $getTypeCallback);
2556:	}
2557:
2558:	/**
2559:	* @param callable(Expr): Type $getTypeCallback
2560:	*/
2561:	public function getUnaryMinusType(Expr $expr, callable $getTypeCallback): Type
2562:	{
2563:	$type = $getTypeCallback($expr);
2564:
2565:	$type = $this->getUnaryMinusTypeFromType($expr, $type);
2566:	if ($type instanceof IntegerRangeType) {
2567:	return $getTypeCallback(new Expr\BinaryOp\Mul($expr, new Int_(-1)));
2568:	}
2569:
2570:	return $type;
2571:	}
2572:
2573:	public function getUnaryMinusTypeFromType(Expr $expr, Type $type): Type
2574:	{
2575:	$type = $type->toNumber();
2576:	$scalarValues = $type->getConstantScalarValues();
2577:
2578:	if (count($scalarValues) > 0) {
2579:	$newTypes = [];
2580:	foreach ($scalarValues as $scalarValue) {
2581:	if (is_int($scalarValue)) {
2582:	/** @var int\|float $newValue */
2583:	$newValue = -$scalarValue;
2584:	if (!is_int($newValue)) {
2585:	return $type;
2586:	}
2587:	$newTypes[] = new ConstantIntegerType($newValue);
2588:	} elseif (is_float($scalarValue)) {
2589:	$newTypes[] = new ConstantFloatType(-$scalarValue);
2590:	}
2591:	}
2592:
2593:	return TypeCombinator::union(...$newTypes);
2594:	}
2595:
2596:	return $type;
2597:	}
2598:
2599:	/**
2600:	* @param callable(Expr): Type $getTypeCallback
2601:	*/
2602:	public function getBitwiseNotType(Expr $expr, callable $getTypeCallback): Type
2603:	{
2604:	$exprType = $getTypeCallback($expr);
2605:
2606:	return $this->getBitwiseNotTypeFromType($exprType);
2607:	}
2608:
2609:	public function getBitwiseNotTypeFromType(Type $exprType): Type
2610:	{
2611:	return TypeTraverser::map($exprType, static function (Type $type, callable $traverse): Type {
2612:	if ($type instanceof UnionType \|\| $type instanceof IntersectionType) {
2613:	return $traverse($type);
2614:	}
2615:	if ($type instanceof ConstantStringType) {
2616:	return new ConstantStringType(~$type->getValue());
2617:	}
2618:	if ($type->isString()->yes()) {
2619:	$accessories = [];
2620:	if (!$type->isNonEmptyString()->yes()) {
2621:	return new StringType();
2622:	}
2623:
2624:	$accessories[] = new AccessoryNonEmptyStringType();
2625:	// it is not useful to apply numeric and literal strings here.
2626:	// numeric string isn't certainly kept numeric: 3v4l.org/JERDB
2627:
2628:	return new IntersectionType([new StringType(), ...$accessories]);
2629:	}
2630:	if ($type instanceof ConstantIntegerType \|\| $type instanceof ConstantFloatType) {
2631:	return new ConstantIntegerType(~ (int) $type->getValue());
2632:	}
2633:	if ($type->isInteger()->yes() \|\| $type->isFloat()->yes()) {
2634:	return new IntegerType();
2635:	}
2636:	return new ErrorType();
2637:	});
2638:	}
2639:
2640:	private function resolveName(Name $name, ?ClassReflection $classReflection): string
2641:	{
2642:	$originalClass = (string) $name;
2643:	if ($classReflection !== null) {
2644:	$lowerClass = strtolower($originalClass);
2645:
2646:	if (in_array($lowerClass, [
2647:	'self',
2648:	'static',
2649:	], true)) {
2650:	return $classReflection->getName();
2651:	} elseif ($lowerClass === 'parent') {
2652:	if ($classReflection->getParentClass() !== null) {
2653:	return $classReflection->getParentClass()->getName();
2654:	}
2655:	}
2656:	}
2657:
2658:	return $originalClass;
2659:	}
2660:
2661:	private function resolveTypeByName(Name $name, ?ClassReflection $classReflection): TypeWithClassName
2662:	{
2663:	if ($name->toLowerString() === 'static' && $classReflection !== null) {
2664:	return new StaticType($classReflection);
2665:	}
2666:
2667:	$originalClass = $this->resolveName($name, $classReflection);
2668:	if ($classReflection !== null) {
2669:	$thisType = new ThisType($classReflection);
2670:	$ancestor = $thisType->getAncestorWithClassName($originalClass);
2671:	if ($ancestor !== null) {
2672:	return $ancestor;
2673:	}
2674:	}
2675:
2676:	return new ObjectType($originalClass);
2677:	}
2678:
2679:	private function resolveTypeByNameWithLateStaticBinding(Name $class, Type $classType, MethodReflection $methodReflectionCandidate): Type
2680:	{
2681:	if (
2682:	$classType instanceof StaticType
2683:	&& !in_array($class->toLowerString(), ['self', 'static', 'parent'], true)
2684:	) {
2685:	if ($methodReflectionCandidate->isStatic()) {
2686:	$classType = $classType->getStaticObjectType();
2687:	}
2688:	}
2689:
2690:	return $classType;
2691:	}
2692:
2693:	/**
2694:	* @param mixed $value
2695:	*/
2696:	private function getTypeFromValue($value): Type
2697:	{
2698:	return ConstantTypeHelper::getTypeFromValue($value);
2699:	}
2700:
2701:	private function getReflectionProvider(): ReflectionProvider
2702:	{
2703:	return $this->reflectionProviderProvider->getReflectionProvider();
2704:	}
2705:
2706:	private function getNeverType(Type $leftType, Type $rightType): Type
2707:	{
2708:	// make sure we don't lose the explicit flag in the process
2709:	if ($leftType instanceof NeverType && $leftType->isExplicit()) {
2710:	return $leftType;
2711:	}
2712:	if ($rightType instanceof NeverType && $rightType->isExplicit()) {
2713:	return $rightType;
2714:	}
2715:	return new NeverType();
2716:	}
2717:
2718:	}
2719:

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