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 assert;
106:	use function ceil;
107:	use function count;
108:	use function dirname;
109:	use function floor;
110:	use function in_array;
111:	use function intval;
112:	use function is_finite;
113:	use function is_float;
114:	use function is_int;
115:	use function is_numeric;
116:	use function is_string;
117:	use function max;
118:	use function min;
119:	use function sprintf;
120:	use function str_starts_with;
121:	use function strtolower;
122:	use const INF;
123:
124:	#[AutowiredService]
125:	final class InitializerExprTypeResolver
126:	{
127:
128:	public const CALCULATE_SCALARS_LIMIT = 128;
129:
130:	/** @var array<string, true> */
131:	private array $currentlyResolvingClassConstant = [];
132:
133:	public function __construct(
134:	private ConstantResolver $constantResolver,
135:	private ReflectionProviderProvider $reflectionProviderProvider,
136:	private PhpVersion $phpVersion,
137:	private OperatorTypeSpecifyingExtensionRegistryProvider $operatorTypeSpecifyingExtensionRegistryProvider,
138:	private OversizedArrayBuilder $oversizedArrayBuilder,
139:	#[AutowiredParameter]
140:	private bool $usePathConstantsAsConstantString,
141:	)
142:	{
143:	}
144:
145:	/** @api */
146:	public function getType(Expr $expr, InitializerExprContext $context): Type
147:	{
148:	if ($expr instanceof TypeExpr) {
149:	return $expr->getExprType();
150:	}
151:	if ($expr instanceof Int_) {
152:	return new ConstantIntegerType($expr->value);
153:	}
154:	if ($expr instanceof Float_) {
155:	return new ConstantFloatType($expr->value);
156:	}
157:	if ($expr instanceof String_) {
158:	return new ConstantStringType($expr->value);
159:	}
160:	if ($expr instanceof ConstFetch) {
161:	$constName = (string) $expr->name;
162:	$loweredConstName = strtolower($constName);
163:	if ($loweredConstName === 'true') {
164:	return new ConstantBooleanType(true);
165:	} elseif ($loweredConstName === 'false') {
166:	return new ConstantBooleanType(false);
167:	} elseif ($loweredConstName === 'null') {
168:	return new NullType();
169:	}
170:
171:	$constant = $this->constantResolver->resolveConstant($expr->name, $context);
172:	if ($constant !== null) {
173:	return $constant;
174:	}
175:
176:	return new ErrorType();
177:	}
178:	if ($expr instanceof File) {
179:	$file = $context->getFile();
180:	if ($file === null) {
181:	return new StringType();
182:	}
183:	$stringType = new ConstantStringType($file);
184:	return $this->usePathConstantsAsConstantString ? $stringType : $stringType->generalize(GeneralizePrecision::moreSpecific());
185:	}
186:	if ($expr instanceof Dir) {
187:	$file = $context->getFile();
188:	if ($file === null) {
189:	return new StringType();
190:	}
191:	$stringType = new ConstantStringType(dirname($file));
192:	return $this->usePathConstantsAsConstantString ? $stringType : $stringType->generalize(GeneralizePrecision::moreSpecific());
193:	}
194:	if ($expr instanceof Line) {
195:	return new ConstantIntegerType($expr->getStartLine());
196:	}
197:	if ($expr instanceof Expr\New_) {
198:	if ($expr->class instanceof Name) {
199:	return new ObjectType((string) $expr->class);
200:	}
201:
202:	return new ObjectWithoutClassType();
203:	}
204:	if ($expr instanceof Expr\Array_) {
205:	return $this->getArrayType($expr, fn (Expr $expr): Type => $this->getType($expr, $context));
206:	}
207:	if ($expr instanceof Expr\Cast) {
208:	return $this->getCastType($expr, fn (Expr $expr): Type => $this->getType($expr, $context));
209:	}
210:	if ($expr instanceof Expr\CallLike && $expr->isFirstClassCallable()) {
211:	return $this->getFirstClassCallableType($expr, $context, false);
212:	}
213:	if ($expr instanceof Expr\Closure && $expr->static) {
214:	$parameters = [];
215:	$isVariadic = false;
216:	$firstOptionalParameterIndex = null;
217:	foreach ($expr->params as $i => $param) {
218:	$isOptionalCandidate = $param->default !== null \|\| $param->variadic;
219:
220:	if ($isOptionalCandidate) {
221:	if ($firstOptionalParameterIndex === null) {
222:	$firstOptionalParameterIndex = $i;
223:	}
224:	} else {
225:	$firstOptionalParameterIndex = null;
226:	}
227:	}
228:
229:	foreach ($expr->params as $i => $param) {
230:	if ($param->variadic) {
231:	$isVariadic = true;
232:	}
233:	if (!$param->var instanceof Variable \|\| !is_string($param->var->name)) {
234:	throw new ShouldNotHappenException();
235:	}
236:	$parameters[] = new NativeParameterReflection(
237:	$param->var->name,
238:	$firstOptionalParameterIndex !== null && $i >= $firstOptionalParameterIndex,
239:	$this->getFunctionType($param->type, $this->isParameterValueNullable($param), false, $context),
240:	$param->byRef
241:	? PassedByReference::createCreatesNewVariable()
242:	: PassedByReference::createNo(),
243:	$param->variadic,
244:	$param->default !== null ? $this->getType($param->default, $context) : null,
245:	);
246:	}
247:
248:	$returnType = new MixedType(false);
249:	if ($expr->returnType !== null) {
250:	$returnType = $this->getFunctionType($expr->returnType, false, false, $context);
251:	}
252:
253:	return new ClosureType(
254:	$parameters,
255:	$returnType,
256:	$isVariadic,
257:	TemplateTypeMap::createEmpty(),
258:	TemplateTypeMap::createEmpty(),
259:	TemplateTypeVarianceMap::createEmpty(),
260:	acceptsNamedArguments: TrinaryLogic::createYes(),
261:	);
262:	}
263:	if ($expr instanceof Expr\ArrayDimFetch && $expr->dim !== null) {
264:	$var = $this->getType($expr->var, $context);
265:	$dim = $this->getType($expr->dim, $context);
266:	return $var->getOffsetValueType($dim);
267:	}
268:	if ($expr instanceof ClassConstFetch && $expr->name instanceof Identifier) {
269:	return $this->getClassConstFetchType($expr->class, $expr->name->toString(), $context->getClassName(), fn (Expr $expr): Type => $this->getType($expr, $context));
270:	}
271:	if ($expr instanceof Expr\UnaryPlus) {
272:	return $this->getType($expr->expr, $context)->toNumber();
273:	}
274:	if ($expr instanceof Expr\UnaryMinus) {
275:	return $this->getUnaryMinusType($expr->expr, fn (Expr $expr): Type => $this->getType($expr, $context));
276:	}
277:	if ($expr instanceof Expr\BinaryOp\Coalesce) {
278:	$leftType = $this->getType($expr->left, $context);
279:	$rightType = $this->getType($expr->right, $context);
280:
281:	return TypeCombinator::union(TypeCombinator::removeNull($leftType), $rightType);
282:	}
283:
284:	if ($expr instanceof Expr\Ternary) {
285:	$elseType = $this->getType($expr->else, $context);
286:	if ($expr->if === null) {
287:	$condType = $this->getType($expr->cond, $context);
288:
289:	return TypeCombinator::union(
290:	TypeCombinator::removeFalsey($condType),
291:	$elseType,
292:	);
293:	}
294:
295:	$ifType = $this->getType($expr->if, $context);
296:
297:	return TypeCombinator::union(
298:	TypeCombinator::removeFalsey($ifType),
299:	$elseType,
300:	);
301:	}
302:
303:	if ($expr instanceof Expr\FuncCall && $expr->name instanceof Name && $expr->name->toLowerString() === 'constant') {
304:	$firstArg = $expr->args[0] ?? null;
305:	if ($firstArg instanceof Arg && $firstArg->value instanceof String_) {
306:	$constant = $this->constantResolver->resolvePredefinedConstant($firstArg->value->value);
307:	if ($constant !== null) {
308:	return $constant;
309:	}
310:	}
311:	}
312:
313:	if ($expr instanceof Expr\BooleanNot) {
314:	$exprBooleanType = $this->getType($expr->expr, $context)->toBoolean();
315:
316:	if ($exprBooleanType instanceof ConstantBooleanType) {
317:	return new ConstantBooleanType(!$exprBooleanType->getValue());
318:	}
319:
320:	return new BooleanType();
321:	}
322:
323:	if ($expr instanceof Expr\BitwiseNot) {
324:	return $this->getBitwiseNotType($expr->expr, fn (Expr $expr): Type => $this->getType($expr, $context));
325:	}
326:
327:	if ($expr instanceof Expr\BinaryOp\Concat) {
328:	return $this->getConcatType($expr->left, $expr->right, fn (Expr $expr): Type => $this->getType($expr, $context));
329:	}
330:
331:	if ($expr instanceof Expr\BinaryOp\BitwiseAnd) {
332:	return $this->getBitwiseAndType($expr->left, $expr->right, fn (Expr $expr): Type => $this->getType($expr, $context));
333:	}
334:
335:	if ($expr instanceof Expr\BinaryOp\BitwiseOr) {
336:	return $this->getBitwiseOrType($expr->left, $expr->right, fn (Expr $expr): Type => $this->getType($expr, $context));
337:	}
338:
339:	if ($expr instanceof Expr\BinaryOp\BitwiseXor) {
340:	return $this->getBitwiseXorType($expr->left, $expr->right, fn (Expr $expr): Type => $this->getType($expr, $context));
341:	}
342:
343:	if ($expr instanceof Expr\BinaryOp\Spaceship) {
344:	return $this->getSpaceshipType($expr->left, $expr->right, fn (Expr $expr): Type => $this->getType($expr, $context));
345:	}
346:
347:	if (
348:	$expr instanceof Expr\BinaryOp\BooleanAnd
349:	\|\| $expr instanceof Expr\BinaryOp\LogicalAnd
350:	\|\| $expr instanceof Expr\BinaryOp\BooleanOr
351:	\|\| $expr instanceof Expr\BinaryOp\LogicalOr
352:	) {
353:	return new BooleanType();
354:	}
355:
356:	if ($expr instanceof Expr\BinaryOp\Div) {
357:	return $this->getDivType($expr->left, $expr->right, fn (Expr $expr): Type => $this->getType($expr, $context));
358:	}
359:
360:	if ($expr instanceof Expr\BinaryOp\Mod) {
361:	return $this->getModType($expr->left, $expr->right, fn (Expr $expr): Type => $this->getType($expr, $context));
362:	}
363:
364:	if ($expr instanceof Expr\BinaryOp\Plus) {
365:	return $this->getPlusType($expr->left, $expr->right, fn (Expr $expr): Type => $this->getType($expr, $context));
366:	}
367:
368:	if ($expr instanceof Expr\BinaryOp\Minus) {
369:	return $this->getMinusType($expr->left, $expr->right, fn (Expr $expr): Type => $this->getType($expr, $context));
370:	}
371:
372:	if ($expr instanceof Expr\BinaryOp\Mul) {
373:	return $this->getMulType($expr->left, $expr->right, fn (Expr $expr): Type => $this->getType($expr, $context));
374:	}
375:
376:	if ($expr instanceof Expr\BinaryOp\Pow) {
377:	return $this->getPowType($expr->left, $expr->right, fn (Expr $expr): Type => $this->getType($expr, $context));
378:	}
379:
380:	if ($expr instanceof Expr\BinaryOp\ShiftLeft) {
381:	return $this->getShiftLeftType($expr->left, $expr->right, fn (Expr $expr): Type => $this->getType($expr, $context));
382:	}
383:
384:	if ($expr instanceof Expr\BinaryOp\ShiftRight) {
385:	return $this->getShiftRightType($expr->left, $expr->right, fn (Expr $expr): Type => $this->getType($expr, $context));
386:	}
387:
388:	if ($expr instanceof BinaryOp\Identical) {
389:	return $this->resolveIdenticalType(
390:	$this->getType($expr->left, $context),
391:	$this->getType($expr->right, $context),
392:	)->type;
393:	}
394:
395:	if ($expr instanceof BinaryOp\NotIdentical) {
396:	return $this->getType(new Expr\BooleanNot(new BinaryOp\Identical($expr->left, $expr->right)), $context);
397:	}
398:
399:	if ($expr instanceof BinaryOp\Equal) {
400:	return $this->resolveEqualType(
401:	$this->getType($expr->left, $context),
402:	$this->getType($expr->right, $context),
403:	)->type;
404:	}
405:
406:	if ($expr instanceof BinaryOp\NotEqual) {
407:	return $this->getType(new Expr\BooleanNot(new BinaryOp\Equal($expr->left, $expr->right)), $context);
408:	}
409:
410:	if ($expr instanceof Expr\BinaryOp\Smaller) {
411:	return $this->getType($expr->left, $context)->isSmallerThan($this->getType($expr->right, $context), $this->phpVersion)->toBooleanType();
412:	}
413:
414:	if ($expr instanceof Expr\BinaryOp\SmallerOrEqual) {
415:	return $this->getType($expr->left, $context)->isSmallerThanOrEqual($this->getType($expr->right, $context), $this->phpVersion)->toBooleanType();
416:	}
417:
418:	if ($expr instanceof Expr\BinaryOp\Greater) {
419:	return $this->getType($expr->right, $context)->isSmallerThan($this->getType($expr->left, $context), $this->phpVersion)->toBooleanType();
420:	}
421:
422:	if ($expr instanceof Expr\BinaryOp\GreaterOrEqual) {
423:	return $this->getType($expr->right, $context)->isSmallerThanOrEqual($this->getType($expr->left, $context), $this->phpVersion)->toBooleanType();
424:	}
425:
426:	if ($expr instanceof Expr\BinaryOp\LogicalXor) {
427:	$leftBooleanType = $this->getType($expr->left, $context)->toBoolean();
428:	$rightBooleanType = $this->getType($expr->right, $context)->toBoolean();
429:
430:	if (
431:	$leftBooleanType instanceof ConstantBooleanType
432:	&& $rightBooleanType instanceof ConstantBooleanType
433:	) {
434:	return new ConstantBooleanType(
435:	$leftBooleanType->getValue() xor $rightBooleanType->getValue(),
436:	);
437:	}
438:
439:	return new BooleanType();
440:	}
441:
442:	if ($expr instanceof MagicConst\Class_) {
443:	if ($context->getTraitName() !== null) {
444:	return new IntersectionType([
445:	new ClassStringType(),
446:	new AccessoryLiteralStringType(),
447:	]);
448:	}
449:
450:	if ($context->getClassName() === null) {
451:	return new ConstantStringType('');
452:	}
453:
454:	return new ConstantStringType($context->getClassName(), true);
455:	}
456:
457:	if ($expr instanceof MagicConst\Namespace_) {
458:	if ($context->getTraitName() !== null) {
459:	return new IntersectionType([
460:	new StringType(),
461:	new AccessoryLiteralStringType(),
462:	]);
463:	}
464:
465:	return new ConstantStringType($context->getNamespace() ?? '');
466:	}
467:
468:	if ($expr instanceof MagicConst\Method) {
469:	return new ConstantStringType($context->getMethod() ?? '');
470:	}
471:
472:	if ($expr instanceof MagicConst\Function_) {
473:	return new ConstantStringType($context->getFunction() ?? '');
474:	}
475:
476:	if ($expr instanceof MagicConst\Trait_) {
477:	if ($context->getTraitName() === null) {
478:	return new ConstantStringType('');
479:	}
480:
481:	return new ConstantStringType($context->getTraitName(), true);
482:	}
483:
484:	if ($expr instanceof MagicConst\Property) {
485:	$contextProperty = $context->getProperty();
486:	if ($contextProperty === null) {
487:	return new ConstantStringType('');
488:	}
489:
490:	return new ConstantStringType($contextProperty);
491:	}
492:
493:	if ($expr instanceof PropertyFetch && $expr->name instanceof Identifier) {
494:	$fetchedOnType = $this->getType($expr->var, $context);
495:	if (!$fetchedOnType->hasInstanceProperty($expr->name->name)->yes()) {
496:	return new ErrorType();
497:	}
498:
499:	return $fetchedOnType->getInstanceProperty($expr->name->name, new OutOfClassScope())->getReadableType();
500:	}
501:
502:	return new MixedType();
503:	}
504:
505:	/**
506:	* @param callable(Expr): Type $getTypeCallback
507:	*/
508:	public function getConcatType(Expr $left, Expr $right, callable $getTypeCallback): Type
509:	{
510:	$leftType = $getTypeCallback($left);
511:	$rightType = $getTypeCallback($right);
512:
513:	return $this->resolveConcatType($leftType, $rightType);
514:	}
515:
516:	public function resolveConcatType(Type $left, Type $right): Type
517:	{
518:	$leftStringType = $left->toString();
519:	$rightStringType = $right->toString();
520:	if (TypeCombinator::union(
521:	$leftStringType,
522:	$rightStringType,
523:	) instanceof ErrorType) {
524:	return new ErrorType();
525:	}
526:
527:	if ($leftStringType instanceof ConstantStringType && $leftStringType->getValue() === '') {
528:	return $rightStringType;
529:	}
530:
531:	if ($rightStringType instanceof ConstantStringType && $rightStringType->getValue() === '') {
532:	return $leftStringType;
533:	}
534:
535:	if ($leftStringType instanceof ConstantStringType && $rightStringType instanceof ConstantStringType) {
536:	return $leftStringType->append($rightStringType);
537:	}
538:
539:	$leftConstantStrings = $leftStringType->getConstantStrings();
540:	$rightConstantStrings = $rightStringType->getConstantStrings();
541:	$combinedConstantStringsCount = count($leftConstantStrings) * count($rightConstantStrings);
542:
543:	// we limit the number of union-types for performance reasons
544:	if ($combinedConstantStringsCount > 0 && $combinedConstantStringsCount <= self::CALCULATE_SCALARS_LIMIT) {
545:	$strings = [];
546:
547:	foreach ($leftConstantStrings as $leftConstantString) {
548:	if ($leftConstantString->getValue() === '') {
549:	$strings = array_merge($strings, $rightConstantStrings);
550:
551:	continue;
552:	}
553:
554:	foreach ($rightConstantStrings as $rightConstantString) {
555:	if ($rightConstantString->getValue() === '') {
556:	$strings[] = $leftConstantString;
557:
558:	continue;
559:	}
560:
561:	$strings[] = $leftConstantString->append($rightConstantString);
562:	}
563:	}
564:
565:	if (count($strings) > 0) {
566:	return TypeCombinator::union(...$strings);
567:	}
568:	}
569:
570:	$accessoryTypes = [];
571:	if ($leftStringType->isNonEmptyString()->and($rightStringType->isNonEmptyString())->yes()) {
572:	$accessoryTypes[] = new AccessoryNonFalsyStringType();
573:	} elseif ($leftStringType->isNonFalsyString()->or($rightStringType->isNonFalsyString())->yes()) {
574:	$accessoryTypes[] = new AccessoryNonFalsyStringType();
575:	} elseif ($leftStringType->isNonEmptyString()->or($rightStringType->isNonEmptyString())->yes()) {
576:	$accessoryTypes[] = new AccessoryNonEmptyStringType();
577:	}
578:
579:	if ($leftStringType->isLiteralString()->and($rightStringType->isLiteralString())->yes()) {
580:	$accessoryTypes[] = new AccessoryLiteralStringType();
581:	}
582:
583:	if ($leftStringType->isLowercaseString()->and($rightStringType->isLowercaseString())->yes()) {
584:	$accessoryTypes[] = new AccessoryLowercaseStringType();
585:	}
586:
587:	if ($leftStringType->isUppercaseString()->and($rightStringType->isUppercaseString())->yes()) {
588:	$accessoryTypes[] = new AccessoryUppercaseStringType();
589:	}
590:
591:	$leftNumericStringNonEmpty = TypeCombinator::remove($leftStringType, new ConstantStringType(''));
592:	if ($leftNumericStringNonEmpty->isNumericString()->yes()) {
593:	$validationCallback = $left->isInteger()->yes()
594:	? static fn (string $value): bool => !str_starts_with($value, '-')
595:	: static fn (string $value): bool => Strings::match($value, '#^\d+$#') !== null;
596:
597:	$allRightConstantsZeroOrMore = false;
598:	foreach ($rightConstantStrings as $rightConstantString) {
599:	if ($rightConstantString->getValue() === '') {
600:	continue;
601:	}
602:
603:	if (
604:	!is_numeric($rightConstantString->getValue())
605:	\|\| !$validationCallback($rightConstantString->getValue())
606:	) {
607:	$allRightConstantsZeroOrMore = false;
608:	break;
609:	}
610:
611:	$allRightConstantsZeroOrMore = true;
612:	}
613:
614:	$zeroOrMoreInteger = IntegerRangeType::fromInterval(0, null);
615:	$nonNegativeRight = $allRightConstantsZeroOrMore \|\| $zeroOrMoreInteger->isSuperTypeOf($right)->yes();
616:	if ($nonNegativeRight) {
617:	$accessoryTypes[] = new AccessoryNumericStringType();
618:	}
619:	}
620:
621:	if (count($accessoryTypes) > 0) {
622:	$accessoryTypes[] = new StringType();
623:	return new IntersectionType($accessoryTypes);
624:	}
625:
626:	return new StringType();
627:	}
628:
629:	/**
630:	* @param callable(Expr): Type $getTypeCallback
631:	*/
632:	public function getArrayType(Expr\Array_ $expr, callable $getTypeCallback): Type
633:	{
634:	if (count($expr->items) > ConstantArrayTypeBuilder::ARRAY_COUNT_LIMIT) {
635:	return $this->oversizedArrayBuilder->build($expr, $getTypeCallback);
636:	}
637:
638:	$arrayBuilder = ConstantArrayTypeBuilder::createEmpty();
639:	$isList = null;
640:	foreach ($expr->items as $arrayItem) {
641:	$valueType = $getTypeCallback($arrayItem->value);
642:	if ($arrayItem->unpack) {
643:	$constantArrays = $valueType->getConstantArrays();
644:	if (count($constantArrays) === 1) {
645:	$constantArrayType = $constantArrays[0];
646:	$hasStringKey = false;
647:	foreach ($constantArrayType->getKeyTypes() as $keyType) {
648:	if ($keyType->isString()->yes()) {
649:	$hasStringKey = true;
650:	break;
651:	}
652:	}
653:
654:	foreach ($constantArrayType->getValueTypes() as $i => $innerValueType) {
655:	if ($hasStringKey && $this->phpVersion->supportsArrayUnpackingWithStringKeys()) {
656:	$arrayBuilder->setOffsetValueType($constantArrayType->getKeyTypes()[$i], $innerValueType, $constantArrayType->isOptionalKey($i));
657:	} else {
658:	$arrayBuilder->setOffsetValueType(null, $innerValueType, $constantArrayType->isOptionalKey($i));
659:	}
660:	}
661:	} else {
662:	$arrayBuilder->degradeToGeneralArray();
663:
664:	if ($this->phpVersion->supportsArrayUnpackingWithStringKeys() && !$valueType->getIterableKeyType()->isString()->no()) {
665:	$isList = false;
666:	$offsetType = $valueType->getIterableKeyType();
667:	} else {
668:	$isList ??= $arrayBuilder->isList();
669:	$offsetType = new IntegerType();
670:	}
671:
672:	$arrayBuilder->setOffsetValueType($offsetType, $valueType->getIterableValueType(), !$valueType->isIterableAtLeastOnce()->yes());
673:	}
674:	} else {
675:	$arrayBuilder->setOffsetValueType(
676:	$arrayItem->key !== null ? $getTypeCallback($arrayItem->key) : null,
677:	$valueType,
678:	);
679:	}
680:	}
681:
682:	$arrayType = $arrayBuilder->getArray();
683:	if ($isList === true) {
684:	return TypeCombinator::intersect($arrayType, new AccessoryArrayListType());
685:	}
686:
687:	return $arrayType;
688:	}
689:
690:	/**
691:	* @param callable(Expr): Type $getTypeCallback
692:	*/
693:	public function getCastType(Expr\Cast $expr, callable $getTypeCallback): Type
694:	{
695:	if ($expr instanceof \PhpParser\Node\Expr\Cast\Int_) {
696:	return $getTypeCallback($expr->expr)->toInteger();
697:	}
698:	if ($expr instanceof Bool_) {
699:	return $getTypeCallback($expr->expr)->toBoolean();
700:	}
701:	if ($expr instanceof Double) {
702:	return $getTypeCallback($expr->expr)->toFloat();
703:	}
704:	if ($expr instanceof \PhpParser\Node\Expr\Cast\String_) {
705:	return $getTypeCallback($expr->expr)->toString();
706:	}
707:	if ($expr instanceof Array_) {
708:	return $getTypeCallback($expr->expr)->toArray();
709:	}
710:	if ($expr instanceof Object_) {
711:	return $this->getCastObjectType($getTypeCallback($expr->expr));
712:	}
713:
714:	return new MixedType();
715:	}
716:
717:	public function getCastObjectType(Type $exprType): Type
718:	{
719:	$castToObject = static function (Type $type): Type {
720:	$constantArrays = $type->getConstantArrays();
721:	if (count($constantArrays) > 0) {
722:	$objects = [];
723:	foreach ($constantArrays as $constantArray) {
724:	$properties = [];
725:	$optionalProperties = [];
726:	foreach ($constantArray->getKeyTypes() as $i => $keyType) {
727:	$valueType = $constantArray->getValueTypes()[$i];
728:	$optional = $constantArray->isOptionalKey($i);
729:	if ($optional) {
730:	$optionalProperties[] = $keyType->getValue();
731:	}
732:	$properties[$keyType->getValue()] = $valueType;
733:	}
734:
735:	$objects[] = new IntersectionType([new ObjectShapeType($properties, $optionalProperties), new ObjectType(stdClass::class)]);
736:	}
737:
738:	return TypeCombinator::union(...$objects);
739:	}
740:	if ($type->isObject()->yes()) {
741:	return $type;
742:	}
743:
744:	return new ObjectType('stdClass');
745:	};
746:
747:	if ($exprType instanceof UnionType) {
748:	return TypeCombinator::union(...array_map($castToObject, $exprType->getTypes()));
749:	}
750:
751:	return $castToObject($exprType);
752:	}
753:
754:	/**
755:	* @param Name\|Identifier\|ComplexType\|null $type
756:	*/
757:	public function getFunctionType($type, bool $isNullable, bool $isVariadic, InitializerExprContext $context): Type
758:	{
759:	if ($isNullable) {
760:	return TypeCombinator::addNull(
761:	$this->getFunctionType($type, false, $isVariadic, $context),
762:	);
763:	}
764:	if ($isVariadic) {
765:	if (!$this->phpVersion->supportsNamedArguments()) {
766:	return new ArrayType(new UnionType([new IntegerType(), new StringType()]), $this->getFunctionType(
767:	$type,
768:	false,
769:	false,
770:	$context,
771:	));
772:	}
773:
774:	return new IntersectionType([new ArrayType(IntegerRangeType::createAllGreaterThanOrEqualTo(0), $this->getFunctionType(
775:	$type,
776:	false,
777:	false,
778:	$context,
779:	)), new AccessoryArrayListType()]);
780:	}
781:
782:	if ($type instanceof Name) {
783:	$className = (string) $type;
784:	$lowercasedClassName = strtolower($className);
785:	if ($lowercasedClassName === 'parent') {
786:	$classReflection = null;
787:	if ($context->getClassName() !== null && $this->getReflectionProvider()->hasClass($context->getClassName())) {
788:	$classReflection = $this->getReflectionProvider()->getClass($context->getClassName());
789:	}
790:	if ($classReflection !== null && $classReflection->getParentClass() !== null) {
791:	return new ObjectType($classReflection->getParentClass()->getName());
792:	}
793:
794:	return new NonexistentParentClassType();
795:	}
796:	}
797:
798:	$classReflection = null;
799:	if ($context->getClassName() !== null && $this->getReflectionProvider()->hasClass($context->getClassName())) {
800:	$classReflection = $this->getReflectionProvider()->getClass($context->getClassName());
801:	}
802:
803:	return ParserNodeTypeToPHPStanType::resolve($type, $classReflection);
804:	}
805:
806:	private function isParameterValueNullable(Param $parameter): bool
807:	{
808:	if ($parameter->default instanceof ConstFetch) {
809:	return strtolower((string) $parameter->default->name) === 'null';
810:	}
811:
812:	return false;
813:	}
814:
815:	public function getFirstClassCallableType(Expr\CallLike $expr, InitializerExprContext $context, bool $nativeTypesPromoted): Type
816:	{
817:	if ($expr instanceof FuncCall) {
818:	if ($expr->name instanceof Name) {
819:	if ($this->getReflectionProvider()->hasFunction($expr->name, $context)) {
820:	$function = $this->getReflectionProvider()->getFunction($expr->name, $context);
821:	return $this->createFirstClassCallable(
822:	$function,
823:	$function->getVariants(),
824:	$nativeTypesPromoted,
825:	);
826:	}
827:
828:	return new ObjectType(Closure::class);
829:	}
830:	}
831:
832:	if ($expr instanceof Expr\StaticCall) {
833:	if (!$expr->class instanceof Name) {
834:	return new ObjectType(Closure::class);
835:	}
836:
837:	if (!$expr->name instanceof Identifier) {
838:	return new ObjectType(Closure::class);
839:	}
840:
841:	$classReflection = null;
842:	if ($context->getClassName() !== null && $this->getReflectionProvider()->hasClass($context->getClassName())) {
843:	$classReflection = $this->getReflectionProvider()->getClass($context->getClassName());
844:	}
845:
846:	$classType = $this->resolveTypeByName($expr->class, $classReflection);
847:	$methodName = $expr->name->toString();
848:	if (!$classType->hasMethod($methodName)->yes()) {
849:	return new ObjectType(Closure::class);
850:	}
851:
852:	$method = $classType->getMethod($methodName, new OutOfClassScope());
853:	$classType = $this->resolveTypeByNameWithLateStaticBinding($expr->class, $classType, $method);
854:	if (!$classType->hasMethod($methodName)->yes()) {
855:	return new ObjectType(Closure::class);
856:	}
857:	$method = $classType->getMethod($methodName, new OutOfClassScope());
858:
859:	return $this->createFirstClassCallable(
860:	$method,
861:	$method->getVariants(),
862:	$nativeTypesPromoted,
863:	);
864:	}
865:
866:	if ($expr instanceof New_) {
867:	return new ErrorType();
868:	}
869:
870:	throw new ShouldNotHappenException();
871:	}
872:
873:	/**
874:	* @param ParametersAcceptor[] $variants
875:	*/
876:	public function createFirstClassCallable(
877:	FunctionReflection\|ExtendedMethodReflection\|null $function,
878:	array $variants,
879:	bool $nativeTypesPromoted,
880:	): Type
881:	{
882:	$closureTypes = [];
883:
884:	foreach ($variants as $variant) {
885:	$returnType = $variant->getReturnType();
886:	if ($variant instanceof ExtendedParametersAcceptor) {
887:	$returnType = $nativeTypesPromoted ? $variant->getNativeReturnType() : $returnType;
888:	}
889:
890:	$templateTags = [];
891:	foreach ($variant->getTemplateTypeMap()->getTypes() as $templateType) {
892:	if (!$templateType instanceof TemplateType) {
893:	continue;
894:	}
895:	$templateTags[$templateType->getName()] = new TemplateTag(
896:	$templateType->getName(),
897:	$templateType->getBound(),
898:	$templateType->getDefault(),
899:	$templateType->getVariance(),
900:	);
901:	}
902:
903:	$throwPoints = [];
904:	$impurePoints = [];
905:	$acceptsNamedArguments = TrinaryLogic::createYes();
906:	$mustUseReturnValue = TrinaryLogic::createMaybe();
907:	if ($variant instanceof CallableParametersAcceptor) {
908:	$throwPoints = $variant->getThrowPoints();
909:	$impurePoints = $variant->getImpurePoints();
910:	$acceptsNamedArguments = $variant->acceptsNamedArguments();
911:	$mustUseReturnValue = $variant->mustUseReturnValue();
912:	} elseif ($function !== null) {
913:	$returnTypeForThrow = $variant->getReturnType();
914:	$throwType = $function->getThrowType();
915:	if ($throwType === null) {
916:	if ($returnTypeForThrow instanceof NeverType && $returnTypeForThrow->isExplicit()) {
917:	$throwType = new ObjectType(Throwable::class);
918:	}
919:	}
920:
921:	if ($throwType !== null) {
922:	if (!$throwType->isVoid()->yes()) {
923:	$throwPoints[] = SimpleThrowPoint::createExplicit($throwType, true);
924:	}
925:	} else {
926:	if (!(new ObjectType(Throwable::class))->isSuperTypeOf($returnTypeForThrow)->yes()) {
927:	$throwPoints[] = SimpleThrowPoint::createImplicit();
928:	}
929:	}
930:
931:	$impurePoint = SimpleImpurePoint::createFromVariant($function, $variant);
932:	if ($impurePoint !== null) {
933:	$impurePoints[] = $impurePoint;
934:	}
935:
936:	$acceptsNamedArguments = $function->acceptsNamedArguments();
937:	$mustUseReturnValue = $function->mustUseReturnValue();
938:	}
939:
940:	$parameters = $variant->getParameters();
941:	$closureTypes[] = new ClosureType(
942:	$parameters,
943:	$returnType,
944:	$variant->isVariadic(),
945:	$variant->getTemplateTypeMap(),
946:	$variant->getResolvedTemplateTypeMap(),
947:	$variant instanceof ExtendedParametersAcceptor ? $variant->getCallSiteVarianceMap() : TemplateTypeVarianceMap::createEmpty(),
948:	$templateTags,
949:	$throwPoints,
950:	$impurePoints,
951:	acceptsNamedArguments: $acceptsNamedArguments,
952:	mustUseReturnValue: $mustUseReturnValue,
953:	);
954:	}
955:
956:	return TypeCombinator::union(...$closureTypes);
957:	}
958:
959:	/**
960:	* @param callable(Expr): Type $getTypeCallback
961:	*/
962:	public function getBitwiseAndType(Expr $left, Expr $right, callable $getTypeCallback): Type
963:	{
964:	$leftType = $getTypeCallback($left);
965:	$rightType = $getTypeCallback($right);
966:
967:	return $this->getBitwiseAndTypeFromTypes($leftType, $rightType);
968:	}
969:
970:	public function getBitwiseAndTypeFromTypes(Type $leftType, Type $rightType): Type
971:	{
972:	if ($leftType instanceof NeverType \|\| $rightType instanceof NeverType) {
973:	return $this->getNeverType($leftType, $rightType);
974:	}
975:
976:	$leftTypes = $leftType->getConstantScalarTypes();
977:	$rightTypes = $rightType->getConstantScalarTypes();
978:	$leftTypesCount = count($leftTypes);
979:	$rightTypesCount = count($rightTypes);
980:	if ($leftTypesCount > 0 && $rightTypesCount > 0) {
981:	$resultTypes = [];
982:	$generalize = $leftTypesCount * $rightTypesCount > self::CALCULATE_SCALARS_LIMIT;
983:	if (!$generalize) {
984:	foreach ($leftTypes as $leftTypeInner) {
985:	foreach ($rightTypes as $rightTypeInner) {
986:	if ($leftTypeInner instanceof ConstantStringType && $rightTypeInner instanceof ConstantStringType) {
987:	$resultType = $this->getTypeFromValue($leftTypeInner->getValue() & $rightTypeInner->getValue());
988:	} else {
989:	$leftNumberType = $leftTypeInner->toNumber();
990:	$rightNumberType = $rightTypeInner->toNumber();
991:
992:	if ($leftNumberType instanceof ErrorType \|\| $rightNumberType instanceof ErrorType) {
993:	return new ErrorType();
994:	}
995:
996:	if (!$leftNumberType instanceof ConstantScalarType \|\| !$rightNumberType instanceof ConstantScalarType) {
997:	throw new ShouldNotHappenException();
998:	}
999:
1000:	$resultType = $this->getTypeFromValue($leftNumberType->getValue() & $rightNumberType->getValue());
1001:	}
1002:	$resultTypes[] = $resultType;
1003:	}
1004:	}
1005:	return TypeCombinator::union(...$resultTypes);
1006:	}
1007:
1008:	$leftType = $this->optimizeScalarType($leftType);
1009:	$rightType = $this->optimizeScalarType($rightType);
1010:	}
1011:
1012:	if ($leftType instanceof MixedType && $rightType instanceof MixedType) {
1013:	return new BenevolentUnionType([new IntegerType(), new StringType()]);
1014:	}
1015:
1016:	$leftIsString = $leftType->isString();
1017:	$rightIsString = $rightType->isString();
1018:	if (
1019:	($leftIsString->yes() \|\| $leftType instanceof MixedType)
1020:	&& ($rightIsString->yes() \|\| $rightType instanceof MixedType)
1021:	) {
1022:	return new StringType();
1023:	}
1024:	if ($leftIsString->maybe() && $rightIsString->maybe()) {
1025:	return new ErrorType();
1026:	}
1027:
1028:	$leftNumberType = $leftType->toNumber();
1029:	$rightNumberType = $rightType->toNumber();
1030:
1031:	if ($leftNumberType instanceof ErrorType \|\| $rightNumberType instanceof ErrorType) {
1032:	return new ErrorType();
1033:	}
1034:
1035:	if ($rightNumberType instanceof ConstantIntegerType && $rightNumberType->getValue() >= 0) {
1036:	return IntegerRangeType::fromInterval(0, $rightNumberType->getValue());
1037:	}
1038:	if ($leftNumberType instanceof ConstantIntegerType && $leftNumberType->getValue() >= 0) {
1039:	return IntegerRangeType::fromInterval(0, $leftNumberType->getValue());
1040:	}
1041:
1042:	return new IntegerType();
1043:	}
1044:
1045:	/**
1046:	* @param callable(Expr): Type $getTypeCallback
1047:	*/
1048:	public function getBitwiseOrType(Expr $left, Expr $right, callable $getTypeCallback): Type
1049:	{
1050:	$leftType = $getTypeCallback($left);
1051:	$rightType = $getTypeCallback($right);
1052:
1053:	return $this->getBitwiseOrTypeFromTypes($leftType, $rightType);
1054:	}
1055:
1056:	public function getBitwiseOrTypeFromTypes(Type $leftType, Type $rightType): Type
1057:	{
1058:	if ($leftType instanceof NeverType \|\| $rightType instanceof NeverType) {
1059:	return $this->getNeverType($leftType, $rightType);
1060:	}
1061:
1062:	$leftTypes = $leftType->getConstantScalarTypes();
1063:	$rightTypes = $rightType->getConstantScalarTypes();
1064:	$leftTypesCount = count($leftTypes);
1065:	$rightTypesCount = count($rightTypes);
1066:	if ($leftTypesCount > 0 && $rightTypesCount > 0) {
1067:	$resultTypes = [];
1068:	$generalize = $leftTypesCount * $rightTypesCount > self::CALCULATE_SCALARS_LIMIT;
1069:	if (!$generalize) {
1070:	foreach ($leftTypes as $leftTypeInner) {
1071:	foreach ($rightTypes as $rightTypeInner) {
1072:	if ($leftTypeInner instanceof ConstantStringType && $rightTypeInner instanceof ConstantStringType) {
1073:	$resultType = $this->getTypeFromValue($leftTypeInner->getValue() \| $rightTypeInner->getValue());
1074:	} else {
1075:	$leftNumberType = $leftTypeInner->toNumber();
1076:	$rightNumberType = $rightTypeInner->toNumber();
1077:
1078:	if ($leftNumberType instanceof ErrorType \|\| $rightNumberType instanceof ErrorType) {
1079:	return new ErrorType();
1080:	}
1081:
1082:	if (!$leftNumberType instanceof ConstantScalarType \|\| !$rightNumberType instanceof ConstantScalarType) {
1083:	throw new ShouldNotHappenException();
1084:	}
1085:
1086:	$resultType = $this->getTypeFromValue($leftNumberType->getValue() \| $rightNumberType->getValue());
1087:	}
1088:	$resultTypes[] = $resultType;
1089:	}
1090:	}
1091:	return TypeCombinator::union(...$resultTypes);
1092:	}
1093:
1094:	$leftType = $this->optimizeScalarType($leftType);
1095:	$rightType = $this->optimizeScalarType($rightType);
1096:	}
1097:
1098:	if ($leftType instanceof MixedType && $rightType instanceof MixedType) {
1099:	return new BenevolentUnionType([new IntegerType(), new StringType()]);
1100:	}
1101:
1102:	$leftIsString = $leftType->isString();
1103:	$rightIsString = $rightType->isString();
1104:	if (
1105:	($leftIsString->yes() \|\| $leftType instanceof MixedType)
1106:	&& ($rightIsString->yes() \|\| $rightType instanceof MixedType)
1107:	) {
1108:	return new StringType();
1109:	}
1110:	if ($leftIsString->maybe() && $rightIsString->maybe()) {
1111:	return new ErrorType();
1112:	}
1113:
1114:	if ($leftType->toNumber() instanceof ErrorType \|\| $rightType->toNumber() instanceof ErrorType) {
1115:	return new ErrorType();
1116:	}
1117:
1118:	return new IntegerType();
1119:	}
1120:
1121:	/**
1122:	* @param callable(Expr): Type $getTypeCallback
1123:	*/
1124:	public function getBitwiseXorType(Expr $left, Expr $right, callable $getTypeCallback): Type
1125:	{
1126:	$leftType = $getTypeCallback($left);
1127:	$rightType = $getTypeCallback($right);
1128:
1129:	return $this->getBitwiseXorTypeFromTypes($leftType, $rightType);
1130:	}
1131:
1132:	public function getBitwiseXorTypeFromTypes(Type $leftType, Type $rightType): Type
1133:	{
1134:	if ($leftType instanceof NeverType \|\| $rightType instanceof NeverType) {
1135:	return $this->getNeverType($leftType, $rightType);
1136:	}
1137:
1138:	$leftTypes = $leftType->getConstantScalarTypes();
1139:	$rightTypes = $rightType->getConstantScalarTypes();
1140:	$leftTypesCount = count($leftTypes);
1141:	$rightTypesCount = count($rightTypes);
1142:	if ($leftTypesCount > 0 && $rightTypesCount > 0) {
1143:	$resultTypes = [];
1144:	$generalize = $leftTypesCount * $rightTypesCount > self::CALCULATE_SCALARS_LIMIT;
1145:	if (!$generalize) {
1146:	foreach ($leftTypes as $leftTypeInner) {
1147:	foreach ($rightTypes as $rightTypeInner) {
1148:	if ($leftTypeInner instanceof ConstantStringType && $rightTypeInner instanceof ConstantStringType) {
1149:	$resultType = $this->getTypeFromValue($leftTypeInner->getValue() ^ $rightTypeInner->getValue());
1150:	} else {
1151:	$leftNumberType = $leftTypeInner->toNumber();
1152:	$rightNumberType = $rightTypeInner->toNumber();
1153:
1154:	if ($leftNumberType instanceof ErrorType \|\| $rightNumberType instanceof ErrorType) {
1155:	return new ErrorType();
1156:	}
1157:
1158:	if (!$leftNumberType instanceof ConstantScalarType \|\| !$rightNumberType instanceof ConstantScalarType) {
1159:	throw new ShouldNotHappenException();
1160:	}
1161:
1162:	$resultType = $this->getTypeFromValue($leftNumberType->getValue() ^ $rightNumberType->getValue());
1163:	}
1164:	$resultTypes[] = $resultType;
1165:	}
1166:	}
1167:	return TypeCombinator::union(...$resultTypes);
1168:	}
1169:
1170:	$leftType = $this->optimizeScalarType($leftType);
1171:	$rightType = $this->optimizeScalarType($rightType);
1172:	}
1173:
1174:	if ($leftType instanceof MixedType && $rightType instanceof MixedType) {
1175:	return new BenevolentUnionType([new IntegerType(), new StringType()]);
1176:	}
1177:
1178:	$leftIsString = $leftType->isString();
1179:	$rightIsString = $rightType->isString();
1180:	if (
1181:	($leftIsString->yes() \|\| $leftType instanceof MixedType)
1182:	&& ($rightIsString->yes() \|\| $rightType instanceof MixedType)
1183:	) {
1184:	return new StringType();
1185:	}
1186:	if ($leftIsString->maybe() && $rightIsString->maybe()) {
1187:	return new ErrorType();
1188:	}
1189:
1190:	if ($leftType->toNumber() instanceof ErrorType \|\| $rightType->toNumber() instanceof ErrorType) {
1191:	return new ErrorType();
1192:	}
1193:
1194:	return new IntegerType();
1195:	}
1196:
1197:	/**
1198:	* @param callable(Expr): Type $getTypeCallback
1199:	*/
1200:	public function getSpaceshipType(Expr $left, Expr $right, callable $getTypeCallback): Type
1201:	{
1202:	$callbackLeftType = $getTypeCallback($left);
1203:	$callbackRightType = $getTypeCallback($right);
1204:
1205:	return $this->getSpaceshipTypeFromTypes($callbackLeftType, $callbackRightType);
1206:	}
1207:
1208:	public function getSpaceshipTypeFromTypes(Type $leftTypes, Type $rightTypes): Type
1209:	{
1210:	if ($leftTypes instanceof NeverType \|\| $rightTypes instanceof NeverType) {
1211:	return $this->getNeverType($leftTypes, $rightTypes);
1212:	}
1213:
1214:	$leftTypes = $leftTypes->getConstantScalarTypes();
1215:	$rightTypes = $rightTypes->getConstantScalarTypes();
1216:
1217:	$leftTypesCount = count($leftTypes);
1218:	$rightTypesCount = count($rightTypes);
1219:	if ($leftTypesCount > 0 && $rightTypesCount > 0 && $leftTypesCount * $rightTypesCount <= self::CALCULATE_SCALARS_LIMIT) {
1220:	$resultTypes = [];
1221:	foreach ($leftTypes as $leftType) {
1222:	foreach ($rightTypes as $rightType) {
1223:	$leftValue = $leftType->getValue();
1224:	$rightValue = $rightType->getValue();
1225:	$resultType = $this->getTypeFromValue($leftValue <=> $rightValue);
1226:	$resultTypes[] = $resultType;
1227:	}
1228:	}
1229:	return TypeCombinator::union(...$resultTypes);
1230:	}
1231:
1232:	return IntegerRangeType::fromInterval(-1, 1);
1233:	}
1234:
1235:	/**
1236:	* @param callable(Expr): Type $getTypeCallback
1237:	*/
1238:	public function getDivType(Expr $left, Expr $right, callable $getTypeCallback): Type
1239:	{
1240:	$leftType = $getTypeCallback($left);
1241:	$rightType = $getTypeCallback($right);
1242:
1243:	return $this->getDivTypeFromTypes($left, $right, $leftType, $rightType);
1244:	}
1245:
1246:	public function getDivTypeFromTypes(Expr $left, Expr $right, Type $leftType, Type $rightType): Type
1247:	{
1248:	$leftTypes = $leftType->getConstantScalarTypes();
1249:	$rightTypes = $rightType->getConstantScalarTypes();
1250:	$leftTypesCount = count($leftTypes);
1251:	$rightTypesCount = count($rightTypes);
1252:	if ($leftTypesCount > 0 && $rightTypesCount > 0) {
1253:	$resultTypes = [];
1254:	$generalize = $leftTypesCount * $rightTypesCount > self::CALCULATE_SCALARS_LIMIT;
1255:	if (!$generalize) {
1256:	foreach ($leftTypes as $leftTypeInner) {
1257:	foreach ($rightTypes as $rightTypeInner) {
1258:	$leftNumberType = $leftTypeInner->toNumber();
1259:	$rightNumberType = $rightTypeInner->toNumber();
1260:
1261:	if ($leftNumberType instanceof ErrorType \|\| $rightNumberType instanceof ErrorType) {
1262:	return new ErrorType();
1263:	}
1264:
1265:	if (!$leftNumberType instanceof ConstantScalarType \|\| !$rightNumberType instanceof ConstantScalarType) {
1266:	throw new ShouldNotHappenException();
1267:	}
1268:
1269:	if (in_array($rightNumberType->getValue(), [0, 0.0], true)) {
1270:	return new ErrorType();
1271:	}
1272:
1273:	$resultType = $this->getTypeFromValue($leftNumberType->getValue() / $rightNumberType->getValue()); // @phpstan-ignore binaryOp.invalid
1274:	$resultTypes[] = $resultType;
1275:	}
1276:	}
1277:	return TypeCombinator::union(...$resultTypes);
1278:	}
1279:
1280:	$leftType = $this->optimizeScalarType($leftType);
1281:	$rightType = $this->optimizeScalarType($rightType);
1282:	}
1283:
1284:	$rightScalarValues = $rightType->toNumber()->getConstantScalarValues();
1285:	foreach ($rightScalarValues as $scalarValue) {
1286:	if (in_array($scalarValue, [0, 0.0], true)) {
1287:	return new ErrorType();
1288:	}
1289:	}
1290:
1291:	return $this->resolveCommonMath(new BinaryOp\Div($left, $right), $leftType, $rightType);
1292:	}
1293:
1294:	/**
1295:	* @param callable(Expr): Type $getTypeCallback
1296:	*/
1297:	public function getModType(Expr $left, Expr $right, callable $getTypeCallback): Type
1298:	{
1299:	$leftType = $getTypeCallback($left);
1300:	$rightType = $getTypeCallback($right);
1301:
1302:	return $this->getModTypeFromTypes($left, $right, $leftType, $rightType);
1303:	}
1304:
1305:	public function getModTypeFromTypes(Expr $left, Expr $right, Type $leftType, Type $rightType): Type
1306:	{
1307:	if ($leftType instanceof NeverType \|\| $rightType instanceof NeverType) {
1308:	return $this->getNeverType($leftType, $rightType);
1309:	}
1310:
1311:	$extensionSpecified = $this->operatorTypeSpecifyingExtensionRegistryProvider->getRegistry()
1312:	->callOperatorTypeSpecifyingExtensions(new BinaryOp\Mod($left, $right), $leftType, $rightType);
1313:	if ($extensionSpecified !== null) {
1314:	return $extensionSpecified;
1315:	}
1316:
1317:	if ($leftType->toNumber() instanceof ErrorType \|\| $rightType->toNumber() instanceof ErrorType) {
1318:	return new ErrorType();
1319:	}
1320:
1321:	$leftTypes = $leftType->getConstantScalarTypes();
1322:	$rightTypes = $rightType->getConstantScalarTypes();
1323:	$leftTypesCount = count($leftTypes);
1324:	$rightTypesCount = count($rightTypes);
1325:	if ($leftTypesCount > 0 && $rightTypesCount > 0) {
1326:	$resultTypes = [];
1327:	$generalize = $leftTypesCount * $rightTypesCount > self::CALCULATE_SCALARS_LIMIT;
1328:	if (!$generalize) {
1329:	foreach ($leftTypes as $leftTypeInner) {
1330:	foreach ($rightTypes as $rightTypeInner) {
1331:	$leftNumberType = $leftTypeInner->toNumber();
1332:	$rightNumberType = $rightTypeInner->toNumber();
1333:
1334:	if ($leftNumberType instanceof ErrorType \|\| $rightNumberType instanceof ErrorType) {
1335:	return new ErrorType();
1336:	}
1337:
1338:	if (!$leftNumberType instanceof ConstantScalarType \|\| !$rightNumberType instanceof ConstantScalarType) {
1339:	throw new ShouldNotHappenException();
1340:	}
1341:
1342:	$rightIntegerValue = (int) $rightNumberType->getValue();
1343:	if ($rightIntegerValue === 0) {
1344:	return new ErrorType();
1345:	}
1346:
1347:	$resultType = $this->getTypeFromValue((int) $leftNumberType->getValue() % $rightIntegerValue);
1348:	$resultTypes[] = $resultType;
1349:	}
1350:	}
1351:	return TypeCombinator::union(...$resultTypes);
1352:	}
1353:
1354:	$leftType = $this->optimizeScalarType($leftType);
1355:	$rightType = $this->optimizeScalarType($rightType);
1356:	}
1357:
1358:	$integerType = $rightType->toInteger();
1359:	if ($integerType instanceof ConstantIntegerType && $integerType->getValue() === 1) {
1360:	return new ConstantIntegerType(0);
1361:	}
1362:
1363:	$rightScalarValues = $rightType->toNumber()->getConstantScalarValues();
1364:	foreach ($rightScalarValues as $scalarValue) {
1365:
1366:	if (in_array($scalarValue, [0, 0.0], true)) {
1367:	return new ErrorType();
1368:	}
1369:	}
1370:
1371:	$positiveInt = IntegerRangeType::fromInterval(0, null);
1372:	if ($rightType->isInteger()->yes()) {
1373:	$rangeMin = null;
1374:	$rangeMax = null;
1375:
1376:	if ($rightType instanceof IntegerRangeType) {
1377:	$rangeMax = $rightType->getMax() !== null ? $rightType->getMax() - 1 : null;
1378:	} elseif ($rightType instanceof ConstantIntegerType) {
1379:	$rangeMax = $rightType->getValue() - 1;
1380:	} elseif ($rightType instanceof UnionType) {
1381:	foreach ($rightType->getTypes() as $type) {
1382:	if ($type instanceof IntegerRangeType) {
1383:	if ($type->getMax() === null) {
1384:	$rangeMax = null;
1385:	} else {
1386:	$rangeMax = max($rangeMax, $type->getMax());
1387:	}
1388:	} elseif ($type instanceof ConstantIntegerType) {
1389:	$rangeMax = max($rangeMax, $type->getValue() - 1);
1390:	}
1391:	}
1392:	}
1393:
1394:	if ($positiveInt->isSuperTypeOf($leftType)->yes()) {
1395:	$rangeMin = 0;
1396:	} elseif ($rangeMax !== null) {
1397:	$rangeMin = $rangeMax * -1;
1398:	}
1399:
1400:	return IntegerRangeType::fromInterval($rangeMin, $rangeMax);
1401:	} elseif ($positiveInt->isSuperTypeOf($leftType)->yes()) {
1402:	return IntegerRangeType::fromInterval(0, null);
1403:	}
1404:
1405:	return new IntegerType();
1406:	}
1407:
1408:	/**
1409:	* @param callable(Expr): Type $getTypeCallback
1410:	*/
1411:	public function getPlusType(Expr $left, Expr $right, callable $getTypeCallback): Type
1412:	{
1413:	$leftType = $getTypeCallback($left);
1414:	$rightType = $getTypeCallback($right);
1415:
1416:	return $this->getPlusTypeFromTypes($left, $right, $leftType, $rightType);
1417:	}
1418:
1419:	public function getPlusTypeFromTypes(Expr $left, Expr $right, Type $leftType, Type $rightType): Type
1420:	{
1421:	if ($leftType instanceof NeverType \|\| $rightType instanceof NeverType) {
1422:	return $this->getNeverType($leftType, $rightType);
1423:	}
1424:
1425:	$leftTypes = $leftType->getConstantScalarTypes();
1426:	$rightTypes = $rightType->getConstantScalarTypes();
1427:	$leftTypesCount = count($leftTypes);
1428:	$rightTypesCount = count($rightTypes);
1429:	if ($leftTypesCount > 0 && $rightTypesCount > 0) {
1430:	$resultTypes = [];
1431:	$generalize = $leftTypesCount * $rightTypesCount > self::CALCULATE_SCALARS_LIMIT;
1432:	if (!$generalize) {
1433:	foreach ($leftTypes as $leftTypeInner) {
1434:	foreach ($rightTypes as $rightTypeInner) {
1435:	$leftNumberType = $leftTypeInner->toNumber();
1436:	$rightNumberType = $rightTypeInner->toNumber();
1437:
1438:	if ($leftNumberType instanceof ErrorType \|\| $rightNumberType instanceof ErrorType) {
1439:	return new ErrorType();
1440:	}
1441:
1442:	if (!$leftNumberType instanceof ConstantScalarType \|\| !$rightNumberType instanceof ConstantScalarType) {
1443:	throw new ShouldNotHappenException();
1444:	}
1445:
1446:	$resultType = $this->getTypeFromValue($leftNumberType->getValue() + $rightNumberType->getValue());
1447:	$resultTypes[] = $resultType;
1448:	}
1449:	}
1450:
1451:	return TypeCombinator::union(...$resultTypes);
1452:	}
1453:
1454:	$leftType = $this->optimizeScalarType($leftType);
1455:	$rightType = $this->optimizeScalarType($rightType);
1456:	}
1457:
1458:	$leftConstantArrays = $leftType->getConstantArrays();
1459:	$rightConstantArrays = $rightType->getConstantArrays();
1460:
1461:	$leftCount = count($leftConstantArrays);
1462:	$rightCount = count($rightConstantArrays);
1463:	if ($leftCount > 0 && $rightCount > 0
1464:	&& ($leftCount + $rightCount < ConstantArrayTypeBuilder::ARRAY_COUNT_LIMIT)) {
1465:	$resultTypes = [];
1466:	foreach ($rightConstantArrays as $rightConstantArray) {
1467:	foreach ($leftConstantArrays as $leftConstantArray) {
1468:	$newArrayBuilder = ConstantArrayTypeBuilder::createFromConstantArray($rightConstantArray);
1469:	foreach ($leftConstantArray->getKeyTypes() as $i => $leftKeyType) {
1470:	$optional = $leftConstantArray->isOptionalKey($i);
1471:	$valueType = $leftConstantArray->getOffsetValueType($leftKeyType);
1472:	if (!$optional) {
1473:	if ($rightConstantArray->hasOffsetValueType($leftKeyType)->maybe()) {
1474:	$valueType = TypeCombinator::union($valueType, $rightConstantArray->getOffsetValueType($leftKeyType));
1475:	}
1476:	}
1477:	$newArrayBuilder->setOffsetValueType(
1478:	$leftKeyType,
1479:	$valueType,
1480:	$optional,
1481:	);
1482:	}
1483:	$resultTypes[] = $newArrayBuilder->getArray();
1484:	}
1485:	}
1486:	return TypeCombinator::union(...$resultTypes);
1487:	}
1488:
1489:	$leftIsArray = $leftType->isArray();
1490:	$rightIsArray = $rightType->isArray();
1491:	if ($leftIsArray->yes() && $rightIsArray->yes()) {
1492:	if ($leftType->getIterableKeyType()->equals($rightType->getIterableKeyType())) {
1493:	// to preserve BenevolentUnionType
1494:	$keyType = $leftType->getIterableKeyType();
1495:	} else {
1496:	$keyTypes = [];
1497:	foreach ([
1498:	$leftType->getIterableKeyType(),
1499:	$rightType->getIterableKeyType(),
1500:	] as $keyType) {
1501:	$keyTypes[] = $keyType;
1502:	}
1503:	$keyType = TypeCombinator::union(...$keyTypes);
1504:	}
1505:
1506:	$arrayType = new ArrayType(
1507:	$keyType,
1508:	TypeCombinator::union($leftType->getIterableValueType(), $rightType->getIterableValueType()),
1509:	);
1510:
1511:	$accessories = [];
1512:	foreach ($leftType->getConstantArrays() as $type) {
1513:	foreach ($type->getKeyTypes() as $i => $offsetType) {
1514:	if ($type->isOptionalKey($i)) {
1515:	continue;
1516:	}
1517:	$valueType = $type->getValueTypes()[$i];
1518:	$accessories[] = new HasOffsetValueType($offsetType, $valueType);
1519:	}
1520:	}
1521:
1522:	if ($leftType->isIterableAtLeastOnce()->yes() \|\| $rightType->isIterableAtLeastOnce()->yes()) {
1523:	$accessories[] = new NonEmptyArrayType();
1524:	}
1525:	if ($leftType->isList()->yes() && $rightType->isList()->yes()) {
1526:	$accessories[] = new AccessoryArrayListType();
1527:	}
1528:
1529:	if (count($accessories) > 0) {
1530:	$arrayType = TypeCombinator::intersect($arrayType, ...$accessories);
1531:	}
1532:
1533:	return $arrayType;
1534:	}
1535:
1536:	if ($leftType instanceof MixedType && $rightType instanceof MixedType) {
1537:	if (
1538:	($leftIsArray->no() && $rightIsArray->no())
1539:	) {
1540:	return new BenevolentUnionType([
1541:	new FloatType(),
1542:	new IntegerType(),
1543:	]);
1544:	}
1545:	return new BenevolentUnionType([
1546:	new FloatType(),
1547:	new IntegerType(),
1548:	new ArrayType(new MixedType(), new MixedType()),
1549:	]);
1550:	}
1551:
1552:	if (
1553:	($leftIsArray->yes() && $rightIsArray->no())
1554:	\|\| ($leftIsArray->no() && $rightIsArray->yes())
1555:	) {
1556:	return new ErrorType();
1557:	}
1558:
1559:	if (
1560:	($leftIsArray->yes() && $rightIsArray->maybe())
1561:	\|\| ($leftIsArray->maybe() && $rightIsArray->yes())
1562:	) {
1563:	$resultType = new ArrayType(new MixedType(), new MixedType());
1564:	if ($leftType->isIterableAtLeastOnce()->yes() \|\| $rightType->isIterableAtLeastOnce()->yes()) {
1565:	return TypeCombinator::intersect($resultType, new NonEmptyArrayType());
1566:	}
1567:
1568:	return $resultType;
1569:	}
1570:
1571:	if ($leftIsArray->maybe() && $rightIsArray->maybe()) {
1572:	$plusable = new UnionType([
1573:	new StringType(),
1574:	new FloatType(),
1575:	new IntegerType(),
1576:	new ArrayType(new MixedType(), new MixedType()),
1577:	new BooleanType(),
1578:	]);
1579:
1580:	$plusableSuperTypeOfLeft = $plusable->isSuperTypeOf($leftType)->yes();
1581:	$plusableSuperTypeOfRight = $plusable->isSuperTypeOf($rightType)->yes();
1582:	if ($plusableSuperTypeOfLeft && $plusableSuperTypeOfRight) {
1583:	return TypeCombinator::union($leftType, $rightType);
1584:	}
1585:	if ($plusableSuperTypeOfLeft && $rightType instanceof MixedType) {
1586:	return $leftType;
1587:	}
1588:	if ($plusableSuperTypeOfRight && $leftType instanceof MixedType) {
1589:	return $rightType;
1590:	}
1591:	}
1592:
1593:	return $this->resolveCommonMath(new BinaryOp\Plus($left, $right), $leftType, $rightType);
1594:	}
1595:
1596:	/**
1597:	* @param callable(Expr): Type $getTypeCallback
1598:	*/
1599:	public function getMinusType(Expr $left, Expr $right, callable $getTypeCallback): Type
1600:	{
1601:	$leftType = $getTypeCallback($left);
1602:	$rightType = $getTypeCallback($right);
1603:
1604:	return $this->getMinusTypeFromTypes($left, $right, $leftType, $rightType);
1605:	}
1606:
1607:	public function getMinusTypeFromTypes(Expr $left, Expr $right, Type $leftType, Type $rightType): Type
1608:	{
1609:	$leftTypes = $leftType->getConstantScalarTypes();
1610:	$rightTypes = $rightType->getConstantScalarTypes();
1611:	$leftTypesCount = count($leftTypes);
1612:	$rightTypesCount = count($rightTypes);
1613:	if ($leftTypesCount > 0 && $rightTypesCount > 0) {
1614:	$resultTypes = [];
1615:	$generalize = $leftTypesCount * $rightTypesCount > self::CALCULATE_SCALARS_LIMIT;
1616:	if (!$generalize) {
1617:	foreach ($leftTypes as $leftTypeInner) {
1618:	foreach ($rightTypes as $rightTypeInner) {
1619:	$leftNumberType = $leftTypeInner->toNumber();
1620:	$rightNumberType = $rightTypeInner->toNumber();
1621:
1622:	if ($leftNumberType instanceof ErrorType \|\| $rightNumberType instanceof ErrorType) {
1623:	return new ErrorType();
1624:	}
1625:
1626:	if (!$leftNumberType instanceof ConstantScalarType \|\| !$rightNumberType instanceof ConstantScalarType) {
1627:	throw new ShouldNotHappenException();
1628:	}
1629:
1630:	$resultType = $this->getTypeFromValue($leftNumberType->getValue() - $rightNumberType->getValue());
1631:	$resultTypes[] = $resultType;
1632:	}
1633:	}
1634:
1635:	return TypeCombinator::union(...$resultTypes);
1636:	}
1637:
1638:	$leftType = $this->optimizeScalarType($leftType);
1639:	$rightType = $this->optimizeScalarType($rightType);
1640:	}
1641:
1642:	return $this->resolveCommonMath(new BinaryOp\Minus($left, $right), $leftType, $rightType);
1643:	}
1644:
1645:	/**
1646:	* @param callable(Expr): Type $getTypeCallback
1647:	*/
1648:	public function getMulType(Expr $left, Expr $right, callable $getTypeCallback): Type
1649:	{
1650:	$leftType = $getTypeCallback($left);
1651:	$rightType = $getTypeCallback($right);
1652:
1653:	return $this->getMulTypeFromTypes($left, $right, $leftType, $rightType);
1654:	}
1655:
1656:	public function getMulTypeFromTypes(Expr $left, Expr $right, Type $leftType, Type $rightType): Type
1657:	{
1658:	$leftTypes = $leftType->getConstantScalarTypes();
1659:	$rightTypes = $rightType->getConstantScalarTypes();
1660:	$leftTypesCount = count($leftTypes);
1661:	$rightTypesCount = count($rightTypes);
1662:	if ($leftTypesCount > 0 && $rightTypesCount > 0) {
1663:	$resultTypes = [];
1664:	$generalize = $leftTypesCount * $rightTypesCount > self::CALCULATE_SCALARS_LIMIT;
1665:	if (!$generalize) {
1666:	foreach ($leftTypes as $leftTypeInner) {
1667:	foreach ($rightTypes as $rightTypeInner) {
1668:	$leftNumberType = $leftTypeInner->toNumber();
1669:	$rightNumberType = $rightTypeInner->toNumber();
1670:
1671:	if ($leftNumberType instanceof ErrorType \|\| $rightNumberType instanceof ErrorType) {
1672:	return new ErrorType();
1673:	}
1674:
1675:	if (!$leftNumberType instanceof ConstantScalarType \|\| !$rightNumberType instanceof ConstantScalarType) {
1676:	throw new ShouldNotHappenException();
1677:	}
1678:
1679:	$resultType = $this->getTypeFromValue($leftNumberType->getValue() * $rightNumberType->getValue());
1680:	$resultTypes[] = $resultType;
1681:	}
1682:	}
1683:
1684:	return TypeCombinator::union(...$resultTypes);
1685:	}
1686:
1687:	$leftType = $this->optimizeScalarType($leftType);
1688:	$rightType = $this->optimizeScalarType($rightType);
1689:	}
1690:
1691:	$leftNumberType = $leftType->toNumber();
1692:	if ($leftNumberType instanceof ConstantIntegerType && $leftNumberType->getValue() === 0) {
1693:	if ($rightType->isFloat()->yes()) {
1694:	return new ConstantFloatType(0.0);
1695:	}
1696:	return new ConstantIntegerType(0);
1697:	}
1698:	$rightNumberType = $rightType->toNumber();
1699:	if ($rightNumberType instanceof ConstantIntegerType && $rightNumberType->getValue() === 0) {
1700:	if ($leftType->isFloat()->yes()) {
1701:	return new ConstantFloatType(0.0);
1702:	}
1703:	return new ConstantIntegerType(0);
1704:	}
1705:
1706:	return $this->resolveCommonMath(new BinaryOp\Mul($left, $right), $leftType, $rightType);
1707:	}
1708:
1709:	/**
1710:	* @param callable(Expr): Type $getTypeCallback
1711:	*/
1712:	public function getPowType(Expr $left, Expr $right, callable $getTypeCallback): Type
1713:	{
1714:	$leftType = $getTypeCallback($left);
1715:	$rightType = $getTypeCallback($right);
1716:
1717:	return $this->getPowTypeFromTypes($left, $right, $leftType, $rightType);
1718:	}
1719:
1720:	public function getPowTypeFromTypes(Expr $left, Expr $right, Type $leftType, Type $rightType): Type
1721:	{
1722:	$extensionSpecified = $this->operatorTypeSpecifyingExtensionRegistryProvider->getRegistry()
1723:	->callOperatorTypeSpecifyingExtensions(new BinaryOp\Pow($left, $right), $leftType, $rightType);
1724:	if ($extensionSpecified !== null) {
1725:	return $extensionSpecified;
1726:	}
1727:
1728:	$exponentiatedTyped = $leftType->exponentiate($rightType);
1729:	if (!$exponentiatedTyped instanceof ErrorType) {
1730:	return $exponentiatedTyped;
1731:	}
1732:
1733:	return new ErrorType();
1734:	}
1735:
1736:	/**
1737:	* @param callable(Expr): Type $getTypeCallback
1738:	*/
1739:	public function getShiftLeftType(Expr $left, Expr $right, callable $getTypeCallback): Type
1740:	{
1741:	$leftType = $getTypeCallback($left);
1742:	$rightType = $getTypeCallback($right);
1743:
1744:	return $this->getShiftLeftTypeFromTypes($left, $right, $leftType, $rightType);
1745:	}
1746:
1747:	public function getShiftLeftTypeFromTypes(Expr $left, Expr $right, Type $leftType, Type $rightType): Type
1748:	{
1749:	if ($leftType instanceof NeverType \|\| $rightType instanceof NeverType) {
1750:	return $this->getNeverType($leftType, $rightType);
1751:	}
1752:
1753:	$leftTypes = $leftType->getConstantScalarTypes();
1754:	$rightTypes = $rightType->getConstantScalarTypes();
1755:	$leftTypesCount = count($leftTypes);
1756:	$rightTypesCount = count($rightTypes);
1757:	if ($leftTypesCount > 0 && $rightTypesCount > 0) {
1758:	$resultTypes = [];
1759:	$generalize = $leftTypesCount * $rightTypesCount > self::CALCULATE_SCALARS_LIMIT;
1760:	if (!$generalize) {
1761:	foreach ($leftTypes as $leftTypeInner) {
1762:	foreach ($rightTypes as $rightTypeInner) {
1763:	$leftNumberType = $leftTypeInner->toNumber();
1764:	$rightNumberType = $rightTypeInner->toNumber();
1765:
1766:	if ($leftNumberType instanceof ErrorType \|\| $rightNumberType instanceof ErrorType) {
1767:	return new ErrorType();
1768:	}
1769:
1770:	if (!$leftNumberType instanceof ConstantScalarType \|\| !$rightNumberType instanceof ConstantScalarType) {
1771:	throw new ShouldNotHappenException();
1772:	}
1773:
1774:	if ($rightNumberType->getValue() < 0) {
1775:	return new ErrorType();
1776:	}
1777:
1778:	$resultType = $this->getTypeFromValue(intval($leftNumberType->getValue()) << intval($rightNumberType->getValue()));
1779:	$resultTypes[] = $resultType;
1780:	}
1781:	}
1782:
1783:	return TypeCombinator::union(...$resultTypes);
1784:	}
1785:
1786:	$leftType = $this->optimizeScalarType($leftType);
1787:	$rightType = $this->optimizeScalarType($rightType);
1788:	}
1789:
1790:	$leftNumberType = $leftType->toNumber();
1791:	$rightNumberType = $rightType->toNumber();
1792:
1793:	if ($leftNumberType instanceof ErrorType \|\| $rightNumberType instanceof ErrorType) {
1794:	return new ErrorType();
1795:	}
1796:
1797:	return $this->resolveCommonMath(new Expr\BinaryOp\ShiftLeft($left, $right), $leftType, $rightType);
1798:	}
1799:
1800:	/**
1801:	* @param callable(Expr): Type $getTypeCallback
1802:	*/
1803:	public function getShiftRightType(Expr $left, Expr $right, callable $getTypeCallback): Type
1804:	{
1805:	$leftType = $getTypeCallback($left);
1806:	$rightType = $getTypeCallback($right);
1807:
1808:	return $this->getShiftRightTypeFromTypes($left, $right, $leftType, $rightType);
1809:	}
1810:
1811:	public function getShiftRightTypeFromTypes(Expr $left, Expr $right, Type $leftType, Type $rightType): Type
1812:	{
1813:	if ($leftType instanceof NeverType \|\| $rightType instanceof NeverType) {
1814:	return $this->getNeverType($leftType, $rightType);
1815:	}
1816:
1817:	$leftTypes = $leftType->getConstantScalarTypes();
1818:	$rightTypes = $rightType->getConstantScalarTypes();
1819:	$leftTypesCount = count($leftTypes);
1820:	$rightTypesCount = count($rightTypes);
1821:	if ($leftTypesCount > 0 && $rightTypesCount > 0) {
1822:	$resultTypes = [];
1823:	$generalize = $leftTypesCount * $rightTypesCount > self::CALCULATE_SCALARS_LIMIT;
1824:	if (!$generalize) {
1825:	foreach ($leftTypes as $leftTypeInner) {
1826:	foreach ($rightTypes as $rightTypeInner) {
1827:	$leftNumberType = $leftTypeInner->toNumber();
1828:	$rightNumberType = $rightTypeInner->toNumber();
1829:
1830:	if ($leftNumberType instanceof ErrorType \|\| $rightNumberType instanceof ErrorType) {
1831:	return new ErrorType();
1832:	}
1833:
1834:	if (!$leftNumberType instanceof ConstantScalarType \|\| !$rightNumberType instanceof ConstantScalarType) {
1835:	throw new ShouldNotHappenException();
1836:	}
1837:
1838:	if ($rightNumberType->getValue() < 0) {
1839:	return new ErrorType();
1840:	}
1841:
1842:	$resultType = $this->getTypeFromValue(intval($leftNumberType->getValue()) >> intval($rightNumberType->getValue()));
1843:	$resultTypes[] = $resultType;
1844:	}
1845:	}
1846:
1847:	return TypeCombinator::union(...$resultTypes);
1848:	}
1849:
1850:	$leftType = $this->optimizeScalarType($leftType);
1851:	$rightType = $this->optimizeScalarType($rightType);
1852:	}
1853:
1854:	$leftNumberType = $leftType->toNumber();
1855:	$rightNumberType = $rightType->toNumber();
1856:
1857:	if ($leftNumberType instanceof ErrorType \|\| $rightNumberType instanceof ErrorType) {
1858:	return new ErrorType();
1859:	}
1860:
1861:	return $this->resolveCommonMath(new Expr\BinaryOp\ShiftRight($left, $right), $leftType, $rightType);
1862:	}
1863:
1864:	private function optimizeScalarType(Type $type): Type
1865:	{
1866:	$types = [];
1867:	if ($type->isInteger()->yes()) {
1868:	$types[] = new IntegerType();
1869:	}
1870:	if ($type->isString()->yes()) {
1871:	$types[] = new StringType();
1872:	}
1873:	if ($type->isFloat()->yes()) {
1874:	$types[] = new FloatType();
1875:	}
1876:	if ($type->isNull()->yes()) {
1877:	$types[] = new NullType();
1878:	}
1879:
1880:	if (count($types) === 0) {
1881:	return new ErrorType();
1882:	}
1883:
1884:	if (count($types) === 1) {
1885:	return $types[0];
1886:	}
1887:
1888:	return new UnionType($types);
1889:	}
1890:
1891:	/**
1892:	* @return TypeResult<BooleanType>
1893:	*/
1894:	public function resolveIdenticalType(Type $leftType, Type $rightType): TypeResult
1895:	{
1896:	if ($leftType instanceof NeverType \|\| $rightType instanceof NeverType) {
1897:	return new TypeResult(new ConstantBooleanType(false), []);
1898:	}
1899:
1900:	if ($leftType instanceof ConstantScalarType && $rightType instanceof ConstantScalarType) {
1901:	return new TypeResult(new ConstantBooleanType($leftType->getValue() === $rightType->getValue()), []);
1902:	}
1903:
1904:	$leftTypeFiniteTypes = $leftType->getFiniteTypes();
1905:	$rightTypeFiniteType = $rightType->getFiniteTypes();
1906:	if (count($leftTypeFiniteTypes) === 1 && count($rightTypeFiniteType) === 1) {
1907:	return new TypeResult(new ConstantBooleanType($leftTypeFiniteTypes[0]->equals($rightTypeFiniteType[0])), []);
1908:	}
1909:
1910:	$leftIsSuperTypeOfRight = $leftType->isSuperTypeOf($rightType);
1911:	$rightIsSuperTypeOfLeft = $rightType->isSuperTypeOf($leftType);
1912:	if ($leftIsSuperTypeOfRight->no() && $rightIsSuperTypeOfLeft->no()) {
1913:	return new TypeResult(new ConstantBooleanType(false), array_merge($leftIsSuperTypeOfRight->reasons, $rightIsSuperTypeOfLeft->reasons));
1914:	}
1915:
1916:	if ($leftType instanceof ConstantArrayType && $rightType instanceof ConstantArrayType) {
1917:	return $this->resolveConstantArrayTypeComparison($leftType, $rightType, fn ($leftValueType, $rightValueType): TypeResult => $this->resolveIdenticalType($leftValueType, $rightValueType));
1918:	}
1919:
1920:	return new TypeResult(new BooleanType(), []);
1921:	}
1922:
1923:	/**
1924:	* @return TypeResult<BooleanType>
1925:	*/
1926:	public function resolveEqualType(Type $leftType, Type $rightType): TypeResult
1927:	{
1928:	if (
1929:	($leftType->isEnum()->yes() && $rightType->isTrue()->no())
1930:	\|\| ($rightType->isEnum()->yes() && $leftType->isTrue()->no())
1931:	) {
1932:	return $this->resolveIdenticalType($leftType, $rightType);
1933:	}
1934:
1935:	if ($leftType instanceof ConstantArrayType && $rightType instanceof ConstantArrayType) {
1936:	return $this->resolveConstantArrayTypeComparison($leftType, $rightType, fn ($leftValueType, $rightValueType): TypeResult => $this->resolveEqualType($leftValueType, $rightValueType));
1937:	}
1938:
1939:	return new TypeResult($leftType->looseCompare($rightType, $this->phpVersion), []);
1940:	}
1941:
1942:	/**
1943:	* @param callable(Type, Type): TypeResult<BooleanType> $valueComparisonCallback
1944:	* @return TypeResult<BooleanType>
1945:	*/
1946:	private function resolveConstantArrayTypeComparison(ConstantArrayType $leftType, ConstantArrayType $rightType, callable $valueComparisonCallback): TypeResult
1947:	{
1948:	$leftKeyTypes = $leftType->getKeyTypes();
1949:	$rightKeyTypes = $rightType->getKeyTypes();
1950:	$leftValueTypes = $leftType->getValueTypes();
1951:	$rightValueTypes = $rightType->getValueTypes();
1952:
1953:	$resultType = new ConstantBooleanType(true);
1954:
1955:	foreach ($leftKeyTypes as $i => $leftKeyType) {
1956:	$leftOptional = $leftType->isOptionalKey($i);
1957:	if ($leftOptional) {
1958:	$resultType = new BooleanType();
1959:	}
1960:
1961:	if (count($rightKeyTypes) === 0) {
1962:	if (!$leftOptional) {
1963:	return new TypeResult(new ConstantBooleanType(false), []);
1964:	}
1965:	continue;
1966:	}
1967:
1968:	$found = false;
1969:	foreach ($rightKeyTypes as $j => $rightKeyType) {
1970:	unset($rightKeyTypes[$j]);
1971:
1972:	if ($leftKeyType->equals($rightKeyType)) {
1973:	$found = true;
1974:	break;
1975:	} elseif (!$rightType->isOptionalKey($j)) {
1976:	return new TypeResult(new ConstantBooleanType(false), []);
1977:	}
1978:	}
1979:
1980:	if (!$found) {
1981:	if (!$leftOptional) {
1982:	return new TypeResult(new ConstantBooleanType(false), []);
1983:	}
1984:	continue;
1985:	}
1986:
1987:	if (!isset($j)) {
1988:	throw new ShouldNotHappenException();
1989:	}
1990:
1991:	$rightOptional = $rightType->isOptionalKey($j);
1992:	if ($rightOptional) {
1993:	$resultType = new BooleanType();
1994:	if ($leftOptional) {
1995:	continue;
1996:	}
1997:	}
1998:
1999:	$leftIdenticalToRightResult = $valueComparisonCallback($leftValueTypes[$i], $rightValueTypes[$j]);
2000:	$leftIdenticalToRight = $leftIdenticalToRightResult->type;
2001:	if ($leftIdenticalToRight->isFalse()->yes()) {
2002:	return $leftIdenticalToRightResult;
2003:	}
2004:	$resultType = TypeCombinator::union($resultType, $leftIdenticalToRight);
2005:	}
2006:
2007:	foreach (array_keys($rightKeyTypes) as $j) {
2008:	if (!$rightType->isOptionalKey($j)) {
2009:	return new TypeResult(new ConstantBooleanType(false), []);
2010:	}
2011:	$resultType = new BooleanType();
2012:	}
2013:
2014:	return new TypeResult($resultType->toBoolean(), []);
2015:	}
2016:
2017:	/**
2018:	* @param BinaryOp\Plus\|BinaryOp\Minus\|BinaryOp\Mul\|BinaryOp\Div\|BinaryOp\ShiftLeft\|BinaryOp\ShiftRight $expr
2019:	*/
2020:	private function resolveCommonMath(Expr\BinaryOp $expr, Type $leftType, Type $rightType): Type
2021:	{
2022:	$types = TypeCombinator::union($leftType, $rightType);
2023:	$leftNumberType = $leftType->toNumber();
2024:	$rightNumberType = $rightType->toNumber();
2025:
2026:	if (
2027:	!$types instanceof MixedType
2028:	&& (
2029:	$rightNumberType instanceof IntegerRangeType
2030:	\|\| $rightNumberType instanceof ConstantIntegerType
2031:	\|\| $rightNumberType instanceof UnionType
2032:	)
2033:	) {
2034:	if ($leftNumberType instanceof IntegerRangeType \|\| $leftNumberType instanceof ConstantIntegerType) {
2035:	return $this->integerRangeMath(
2036:	$leftNumberType,
2037:	$expr,
2038:	$rightNumberType,
2039:	);
2040:	} elseif ($leftNumberType instanceof UnionType) {
2041:	$unionParts = [];
2042:
2043:	foreach ($leftNumberType->getTypes() as $type) {
2044:	$numberType = $type->toNumber();
2045:	if ($numberType instanceof IntegerRangeType \|\| $numberType instanceof ConstantIntegerType) {
2046:	$unionParts[] = $this->integerRangeMath($numberType, $expr, $rightNumberType);
2047:	} else {
2048:	$unionParts[] = $numberType;
2049:	}
2050:	}
2051:
2052:	$union = TypeCombinator::union(...$unionParts);
2053:	if ($leftNumberType instanceof BenevolentUnionType) {
2054:	return TypeUtils::toBenevolentUnion($union)->toNumber();
2055:	}
2056:
2057:	return $union->toNumber();
2058:	}
2059:	}
2060:
2061:	$specifiedTypes = $this->operatorTypeSpecifyingExtensionRegistryProvider->getRegistry()
2062:	->callOperatorTypeSpecifyingExtensions($expr, $leftType, $rightType);
2063:	if ($specifiedTypes !== null) {
2064:	return $specifiedTypes;
2065:	}
2066:
2067:	if (
2068:	$leftType->isArray()->yes()
2069:	\|\| $rightType->isArray()->yes()
2070:	\|\| $types->isArray()->yes()
2071:	) {
2072:	return new ErrorType();
2073:	}
2074:
2075:	if ($leftNumberType instanceof ErrorType \|\| $rightNumberType instanceof ErrorType) {
2076:	return new ErrorType();
2077:	}
2078:	if ($leftNumberType instanceof NeverType \|\| $rightNumberType instanceof NeverType) {
2079:	return $this->getNeverType($leftNumberType, $rightNumberType);
2080:	}
2081:
2082:	if (
2083:	$leftNumberType->isFloat()->yes()
2084:	\|\| $rightNumberType->isFloat()->yes()
2085:	) {
2086:	if ($expr instanceof Expr\BinaryOp\ShiftLeft \|\| $expr instanceof Expr\BinaryOp\ShiftRight) {
2087:	return new IntegerType();
2088:	}
2089:	return new FloatType();
2090:	}
2091:
2092:	$resultType = TypeCombinator::union($leftNumberType, $rightNumberType);
2093:	if ($expr instanceof Expr\BinaryOp\Div) {
2094:	if ($types instanceof MixedType \|\| $resultType->isInteger()->yes()) {
2095:	return new BenevolentUnionType([new IntegerType(), new FloatType()]);
2096:	}
2097:
2098:	return new UnionType([new IntegerType(), new FloatType()]);
2099:	}
2100:
2101:	if ($types instanceof MixedType
2102:	\|\| $leftType instanceof BenevolentUnionType
2103:	\|\| $rightType instanceof BenevolentUnionType
2104:	) {
2105:	return TypeUtils::toBenevolentUnion($resultType);
2106:	}
2107:
2108:	return $resultType;
2109:	}
2110:
2111:	/**
2112:	* @param ConstantIntegerType\|IntegerRangeType $range
2113:	* @param BinaryOp\Div\|BinaryOp\Minus\|BinaryOp\Mul\|BinaryOp\Plus\|BinaryOp\ShiftLeft\|BinaryOp\ShiftRight $node
2114:	*/
2115:	private function integerRangeMath(Type $range, BinaryOp $node, Type $operand): Type
2116:	{
2117:	if ($range instanceof IntegerRangeType) {
2118:	$rangeMin = $range->getMin();
2119:	$rangeMax = $range->getMax();
2120:	} else {
2121:	$rangeMin = $range->getValue();
2122:	$rangeMax = $rangeMin;
2123:	}
2124:
2125:	if ($operand instanceof UnionType) {
2126:
2127:	$unionParts = [];
2128:
2129:	foreach ($operand->getTypes() as $type) {
2130:	$numberType = $type->toNumber();
2131:	if ($numberType instanceof IntegerRangeType \|\| $numberType instanceof ConstantIntegerType) {
2132:	$unionParts[] = $this->integerRangeMath($range, $node, $numberType);
2133:	} else {
2134:	$unionParts[] = $type->toNumber();
2135:	}
2136:	}
2137:
2138:	$union = TypeCombinator::union(...$unionParts);
2139:	if ($operand instanceof BenevolentUnionType) {
2140:	return TypeUtils::toBenevolentUnion($union)->toNumber();
2141:	}
2142:
2143:	return $union->toNumber();
2144:	}
2145:
2146:	$operand = $operand->toNumber();
2147:	if ($operand instanceof IntegerRangeType) {
2148:	$operandMin = $operand->getMin();
2149:	$operandMax = $operand->getMax();
2150:	} elseif ($operand instanceof ConstantIntegerType) {
2151:	$operandMin = $operand->getValue();
2152:	$operandMax = $operand->getValue();
2153:	} else {
2154:	return $operand;
2155:	}
2156:
2157:	if ($node instanceof BinaryOp\Plus) {
2158:	if ($operand instanceof ConstantIntegerType) {
2159:	/** @var int\|float\|null $min */
2160:	$min = $rangeMin !== null ? $rangeMin + $operand->getValue() : null;
2161:
2162:	/** @var int\|float\|null $max */
2163:	$max = $rangeMax !== null ? $rangeMax + $operand->getValue() : null;
2164:	} else {
2165:	/** @var int\|float\|null $min */
2166:	$min = $rangeMin !== null && $operand->getMin() !== null ? $rangeMin + $operand->getMin() : null;
2167:
2168:	/** @var int\|float\|null $max */
2169:	$max = $rangeMax !== null && $operand->getMax() !== null ? $rangeMax + $operand->getMax() : null;
2170:	}
2171:	} elseif ($node instanceof BinaryOp\Minus) {
2172:	if ($operand instanceof ConstantIntegerType) {
2173:	/** @var int\|float\|null $min */
2174:	$min = $rangeMin !== null ? $rangeMin - $operand->getValue() : null;
2175:
2176:	/** @var int\|float\|null $max */
2177:	$max = $rangeMax !== null ? $rangeMax - $operand->getValue() : null;
2178:	} else {
2179:	if ($rangeMin === $rangeMax && $rangeMin !== null
2180:	&& ($operand->getMin() === null \|\| $operand->getMax() === null)) {
2181:	$min = null;
2182:	$max = $rangeMin;
2183:	} else {
2184:	if ($operand->getMin() === null) {
2185:	$min = null;
2186:	} elseif ($rangeMin !== null) {
2187:	if ($operand->getMax() !== null) {
2188:	/** @var int\|float $min */
2189:	$min = $rangeMin - $operand->getMax();
2190:	} else {
2191:	/** @var int\|float $min */
2192:	$min = $rangeMin - $operand->getMin();
2193:	}
2194:	} else {
2195:	$min = null;
2196:	}
2197:
2198:	if ($operand->getMax() === null) {
2199:	$min = null;
2200:	$max = null;
2201:	} elseif ($rangeMax !== null) {
2202:	if ($rangeMin !== null && $operand->getMin() === null) {
2203:	/** @var int\|float $min */
2204:	$min = $rangeMin - $operand->getMax();
2205:	$max = null;
2206:	} elseif ($operand->getMin() !== null) {
2207:	/** @var int\|float $max */
2208:	$max = $rangeMax - $operand->getMin();
2209:	} else {
2210:	$max = null;
2211:	}
2212:	} else {
2213:	$max = null;
2214:	}
2215:
2216:	if ($min !== null && $max !== null && $min > $max) {
2217:	[$min, $max] = [$max, $min];
2218:	}
2219:	}
2220:	}
2221:	} elseif ($node instanceof Expr\BinaryOp\Mul) {
2222:	$min1 = $rangeMin === 0 \|\| $operandMin === 0 ? 0 : ($rangeMin ?? -INF) * ($operandMin ?? -INF);
2223:	$min2 = $rangeMin === 0 \|\| $operandMax === 0 ? 0 : ($rangeMin ?? -INF) * ($operandMax ?? INF);
2224:	$max1 = $rangeMax === 0 \|\| $operandMin === 0 ? 0 : ($rangeMax ?? INF) * ($operandMin ?? -INF);
2225:	$max2 = $rangeMax === 0 \|\| $operandMax === 0 ? 0 : ($rangeMax ?? INF) * ($operandMax ?? INF);
2226:
2227:	$min = min($min1, $min2, $max1, $max2);
2228:	$max = max($min1, $min2, $max1, $max2);
2229:
2230:	if (!is_finite($min)) {
2231:	$min = null;
2232:	}
2233:	if (!is_finite($max)) {
2234:	$max = null;
2235:	}
2236:	} elseif ($node instanceof Expr\BinaryOp\Div) {
2237:	if ($operand instanceof ConstantIntegerType) {
2238:	$min = $rangeMin !== null && $operand->getValue() !== 0 ? $rangeMin / $operand->getValue() : null;
2239:	$max = $rangeMax !== null && $operand->getValue() !== 0 ? $rangeMax / $operand->getValue() : null;
2240:	} else {
2241:	// Avoid division by zero when looking for the min and the max by using the closest int
2242:	$operandMin = $operandMin !== 0 ? $operandMin : 1;
2243:	$operandMax = $operandMax !== 0 ? $operandMax : -1;
2244:
2245:	if (
2246:	($operandMin < 0 \|\| $operandMin === null)
2247:	&& ($operandMax > 0 \|\| $operandMax === null)
2248:	) {
2249:	$negativeOperand = IntegerRangeType::fromInterval($operandMin, 0);
2250:	assert($negativeOperand instanceof IntegerRangeType);
2251:	$positiveOperand = IntegerRangeType::fromInterval(0, $operandMax);
2252:	assert($positiveOperand instanceof IntegerRangeType);
2253:
2254:	$result = TypeCombinator::union(
2255:	$this->integerRangeMath($range, $node, $negativeOperand),
2256:	$this->integerRangeMath($range, $node, $positiveOperand),
2257:	)->toNumber();
2258:
2259:	if ($result->equals(new UnionType([new IntegerType(), new FloatType()]))) {
2260:	return new BenevolentUnionType([new IntegerType(), new FloatType()]);
2261:	}
2262:
2263:	return $result;
2264:	}
2265:	if (
2266:	($rangeMin < 0 \|\| $rangeMin === null)
2267:	&& ($rangeMax > 0 \|\| $rangeMax === null)
2268:	) {
2269:	$negativeRange = IntegerRangeType::fromInterval($rangeMin, 0);
2270:	assert($negativeRange instanceof IntegerRangeType);
2271:	$positiveRange = IntegerRangeType::fromInterval(0, $rangeMax);
2272:	assert($positiveRange instanceof IntegerRangeType);
2273:
2274:	$result = TypeCombinator::union(
2275:	$this->integerRangeMath($negativeRange, $node, $operand),
2276:	$this->integerRangeMath($positiveRange, $node, $operand),
2277:	)->toNumber();
2278:
2279:	if ($result->equals(new UnionType([new IntegerType(), new FloatType()]))) {
2280:	return new BenevolentUnionType([new IntegerType(), new FloatType()]);
2281:	}
2282:
2283:	return $result;
2284:	}
2285:
2286:	$rangeMinSign = ($rangeMin ?? -INF) <=> 0;
2287:	$rangeMaxSign = ($rangeMax ?? INF) <=> 0;
2288:
2289:	$min1 = $operandMin !== null ? ($rangeMin ?? -INF) / $operandMin : $rangeMinSign * -0.1;
2290:	$min2 = $operandMax !== null ? ($rangeMin ?? -INF) / $operandMax : $rangeMinSign * 0.1;
2291:	$max1 = $operandMin !== null ? ($rangeMax ?? INF) / $operandMin : $rangeMaxSign * -0.1;
2292:	$max2 = $operandMax !== null ? ($rangeMax ?? INF) / $operandMax : $rangeMaxSign * 0.1;
2293:
2294:	$min = min($min1, $min2, $max1, $max2);
2295:	$max = max($min1, $min2, $max1, $max2);
2296:
2297:	if ($min === -INF) {
2298:	$min = null;
2299:	}
2300:	if ($max === INF) {
2301:	$max = null;
2302:	}
2303:	}
2304:
2305:	if ($min !== null && $max !== null && $min > $max) {
2306:	[$min, $max] = [$max, $min];
2307:	}
2308:
2309:	if (is_float($min)) {
2310:	$min = (int) ceil($min);
2311:	}
2312:	if (is_float($max)) {
2313:	$max = (int) floor($max);
2314:	}
2315:
2316:	// invert maximas on division with negative constants
2317:	if ((($range instanceof ConstantIntegerType && $range->getValue() < 0)
2318:	\|\| ($operand instanceof ConstantIntegerType && $operand->getValue() < 0))
2319:	&& ($min === null \|\| $max === null)) {
2320:	[$min, $max] = [$max, $min];
2321:	}
2322:
2323:	if ($min === null && $max === null) {
2324:	return new BenevolentUnionType([new IntegerType(), new FloatType()]);
2325:	}
2326:
2327:	return TypeCombinator::union(IntegerRangeType::fromInterval($min, $max), new FloatType());
2328:	} elseif ($node instanceof Expr\BinaryOp\ShiftLeft) {
2329:	if (!$operand instanceof ConstantIntegerType) {
2330:	return new IntegerType();
2331:	}
2332:	if ($operand->getValue() < 0) {
2333:	return new ErrorType();
2334:	}
2335:	$min = $rangeMin !== null ? intval($rangeMin) << $operand->getValue() : null;
2336:	$max = $rangeMax !== null ? intval($rangeMax) << $operand->getValue() : null;
2337:	} elseif ($node instanceof Expr\BinaryOp\ShiftRight) {
2338:	if (!$operand instanceof ConstantIntegerType) {
2339:	return new IntegerType();
2340:	}
2341:	if ($operand->getValue() < 0) {
2342:	return new ErrorType();
2343:	}
2344:	$min = $rangeMin !== null ? intval($rangeMin) >> $operand->getValue() : null;
2345:	$max = $rangeMax !== null ? intval($rangeMax) >> $operand->getValue() : null;
2346:	} else {
2347:	throw new ShouldNotHappenException();
2348:	}
2349:
2350:	if (is_float($min)) {
2351:	$min = null;
2352:	}
2353:	if (is_float($max)) {
2354:	$max = null;
2355:	}
2356:
2357:	return IntegerRangeType::fromInterval($min, $max);
2358:	}
2359:
2360:	/**
2361:	* @param callable(Expr): Type $getTypeCallback
2362:	*/
2363:	public function getClassConstFetchTypeByReflection(Name\|Expr $class, string $constantName, ?ClassReflection $classReflection, callable $getTypeCallback): Type
2364:	{
2365:	$isObject = false;
2366:	if ($class instanceof Name) {
2367:	$constantClass = (string) $class;
2368:	$constantClassType = new ObjectType($constantClass);
2369:	$namesToResolve = [
2370:	'self',
2371:	'parent',
2372:	];
2373:	if ($classReflection !== null) {
2374:	if ($classReflection->isFinal()) {
2375:	$namesToResolve[] = 'static';
2376:	} elseif (strtolower($constantClass) === 'static') {
2377:	if (strtolower($constantName) === 'class') {
2378:	return new GenericClassStringType(new StaticType($classReflection));
2379:	}
2380:
2381:	$namesToResolve[] = 'static';
2382:	$isObject = true;
2383:	}
2384:	}
2385:	if (in_array(strtolower($constantClass), $namesToResolve, true)) {
2386:	$resolvedName = $this->resolveName($class, $classReflection);
2387:	if (strtolower($resolvedName) === 'parent' && strtolower($constantName) === 'class') {
2388:	return new ClassStringType();
2389:	}
2390:	$constantClassType = $this->resolveTypeByName($class, $classReflection);
2391:	}
2392:
2393:	if (strtolower($constantName) === 'class') {
2394:	return new ConstantStringType($constantClassType->getClassName(), true);
2395:	}
2396:	} elseif ($class instanceof String_ && strtolower($constantName) === 'class') {
2397:	return new ConstantStringType($class->value, true);
2398:	} else {
2399:	$constantClassType = $getTypeCallback($class);
2400:	$isObject = true;
2401:	}
2402:
2403:	if (strtolower($constantName) === 'class') {
2404:	return TypeTraverser::map(
2405:	$constantClassType,
2406:	function (Type $type, callable $traverse): Type {
2407:	if ($type instanceof UnionType \|\| $type instanceof IntersectionType) {
2408:	return $traverse($type);
2409:	}
2410:
2411:	if ($type instanceof NullType) {
2412:	return $type;
2413:	}
2414:
2415:	if ($type instanceof EnumCaseObjectType) {
2416:	return new IntersectionType([
2417:	new GenericClassStringType(new ObjectType($type->getClassName())),
2418:	new AccessoryLiteralStringType(),
2419:	]);
2420:	}
2421:
2422:	$objectClassNames = $type->getObjectClassNames();
2423:	if (count($objectClassNames) > 1) {
2424:	throw new ShouldNotHappenException();
2425:	}
2426:
2427:	if ($type instanceof TemplateType && $objectClassNames === []) {
2428:	return new IntersectionType([
2429:	new GenericClassStringType($type),
2430:	new AccessoryLiteralStringType(),
2431:	]);
2432:	} elseif ($objectClassNames !== [] && $this->getReflectionProvider()->hasClass($objectClassNames[0])) {
2433:	$reflection = $this->getReflectionProvider()->getClass($objectClassNames[0]);
2434:	if ($reflection->isFinalByKeyword()) {
2435:	return new ConstantStringType($reflection->getName(), true);
2436:	}
2437:
2438:	return new IntersectionType([
2439:	new GenericClassStringType($type),
2440:	new AccessoryLiteralStringType(),
2441:	]);
2442:	} elseif ($type->isObject()->yes()) {
2443:	return new IntersectionType([
2444:	new ClassStringType(),
2445:	new AccessoryLiteralStringType(),
2446:	]);
2447:	}
2448:
2449:	return new ErrorType();
2450:	},
2451:	);
2452:	}
2453:
2454:	if ($constantClassType->isClassString()->yes()) {
2455:	if ($constantClassType->isConstantScalarValue()->yes()) {
2456:	$isObject = false;
2457:	}
2458:	$constantClassType = $constantClassType->getClassStringObjectType();
2459:	}
2460:
2461:	$types = [];
2462:	foreach ($constantClassType->getObjectClassNames() as $referencedClass) {
2463:	if (!$this->getReflectionProvider()->hasClass($referencedClass)) {
2464:	continue;
2465:	}
2466:
2467:	$constantClassReflection = $this->getReflectionProvider()->getClass($referencedClass);
2468:	if (!$constantClassReflection->hasConstant($constantName)) {
2469:	if ($constantClassReflection->getName() === 'Attribute' && $constantName === 'TARGET_CONSTANT') {
2470:	return new ConstantIntegerType(1 << 16);
2471:	}
2472:	continue;
2473:	}
2474:
2475:	if ($constantClassReflection->isEnum() && $constantClassReflection->hasEnumCase($constantName)) {
2476:	$types[] = new EnumCaseObjectType($constantClassReflection->getName(), $constantName);
2477:	continue;
2478:	}
2479:
2480:	$resolvingName = sprintf('%s::%s', $constantClassReflection->getName(), $constantName);
2481:	if (array_key_exists($resolvingName, $this->currentlyResolvingClassConstant)) {
2482:	$types[] = new MixedType();
2483:	continue;
2484:	}
2485:
2486:	$this->currentlyResolvingClassConstant[$resolvingName] = true;
2487:
2488:	if (!$isObject) {
2489:	$reflectionConstant = $constantClassReflection->getNativeReflection()->getReflectionConstant($constantName);
2490:	if ($reflectionConstant === false) {
2491:	unset($this->currentlyResolvingClassConstant[$resolvingName]);
2492:	continue;
2493:	}
2494:	$reflectionConstantDeclaringClass = $reflectionConstant->getDeclaringClass();
2495:	$constantType = $this->getType($reflectionConstant->getValueExpression(), InitializerExprContext::fromClass($reflectionConstantDeclaringClass->getName(), $reflectionConstantDeclaringClass->getFileName() ?: null));
2496:	$nativeType = null;
2497:	if ($reflectionConstant->getType() !== null) {
2498:	$nativeType = TypehintHelper::decideTypeFromReflection($reflectionConstant->getType(), selfClass: $constantClassReflection);
2499:	}
2500:	$types[] = $this->constantResolver->resolveClassConstantType(
2501:	$constantClassReflection->getName(),
2502:	$constantName,
2503:	$constantType,
2504:	$nativeType,
2505:	);
2506:	unset($this->currentlyResolvingClassConstant[$resolvingName]);
2507:	continue;
2508:	}
2509:
2510:	$constantReflection = $constantClassReflection->getConstant($constantName);
2511:	if (
2512:	!$constantClassReflection->isFinal()
2513:	&& !$constantReflection->isFinal()
2514:	&& !$constantReflection->hasPhpDocType()
2515:	&& !$constantReflection->hasNativeType()
2516:	) {
2517:	unset($this->currentlyResolvingClassConstant[$resolvingName]);
2518:	return new MixedType();
2519:	}
2520:
2521:	if (!$constantClassReflection->isFinal()) {
2522:	$constantType = $constantReflection->getValueType();
2523:	} else {
2524:	$constantType = $this->getType($constantReflection->getValueExpr(), InitializerExprContext::fromClassReflection($constantReflection->getDeclaringClass()));
2525:	}
2526:
2527:	$nativeType = $constantReflection->getNativeType();
2528:	$constantType = $this->constantResolver->resolveClassConstantType(
2529:	$constantClassReflection->getName(),
2530:	$constantName,
2531:	$constantType,
2532:	$nativeType,
2533:	);
2534:	unset($this->currentlyResolvingClassConstant[$resolvingName]);
2535:	$types[] = $constantType;
2536:	}
2537:
2538:	if (count($types) > 0) {
2539:	return TypeCombinator::union(...$types);
2540:	}
2541:
2542:	if (!$constantClassType->hasConstant($constantName)->yes()) {
2543:	return new ErrorType();
2544:	}
2545:
2546:	return $constantClassType->getConstant($constantName)->getValueType();
2547:	}
2548:
2549:	/**
2550:	* @param callable(Expr): Type $getTypeCallback
2551:	*/
2552:	public function getClassConstFetchType(Name\|Expr $class, string $constantName, ?string $className, callable $getTypeCallback): Type
2553:	{
2554:	$classReflection = null;
2555:	if ($className !== null && $this->getReflectionProvider()->hasClass($className)) {
2556:	$classReflection = $this->getReflectionProvider()->getClass($className);
2557:	}
2558:
2559:	return $this->getClassConstFetchTypeByReflection($class, $constantName, $classReflection, $getTypeCallback);
2560:	}
2561:
2562:	/**
2563:	* @param callable(Expr): Type $getTypeCallback
2564:	*/
2565:	public function getUnaryMinusType(Expr $expr, callable $getTypeCallback): Type
2566:	{
2567:	$type = $getTypeCallback($expr);
2568:
2569:	$type = $this->getUnaryMinusTypeFromType($expr, $type);
2570:	if ($type instanceof IntegerRangeType) {
2571:	return $getTypeCallback(new Expr\BinaryOp\Mul($expr, new Int_(-1)));
2572:	}
2573:
2574:	return $type;
2575:	}
2576:
2577:	public function getUnaryMinusTypeFromType(Expr $expr, Type $type): Type
2578:	{
2579:	$type = $type->toNumber();
2580:	$scalarValues = $type->getConstantScalarValues();
2581:
2582:	if (count($scalarValues) > 0) {
2583:	$newTypes = [];
2584:	foreach ($scalarValues as $scalarValue) {
2585:	if (is_int($scalarValue)) {
2586:	/** @var int\|float $newValue */
2587:	$newValue = -$scalarValue;
2588:	if (!is_int($newValue)) {
2589:	return $type;
2590:	}
2591:	$newTypes[] = new ConstantIntegerType($newValue);
2592:	} elseif (is_float($scalarValue)) {
2593:	$newTypes[] = new ConstantFloatType(-$scalarValue);
2594:	}
2595:	}
2596:
2597:	return TypeCombinator::union(...$newTypes);
2598:	}
2599:
2600:	return $type;
2601:	}
2602:
2603:	/**
2604:	* @param callable(Expr): Type $getTypeCallback
2605:	*/
2606:	public function getBitwiseNotType(Expr $expr, callable $getTypeCallback): Type
2607:	{
2608:	$exprType = $getTypeCallback($expr);
2609:
2610:	return $this->getBitwiseNotTypeFromType($exprType);
2611:	}
2612:
2613:	public function getBitwiseNotTypeFromType(Type $exprType): Type
2614:	{
2615:	return TypeTraverser::map($exprType, static function (Type $type, callable $traverse): Type {
2616:	if ($type instanceof UnionType \|\| $type instanceof IntersectionType) {
2617:	return $traverse($type);
2618:	}
2619:	if ($type instanceof ConstantStringType) {
2620:	return new ConstantStringType(~$type->getValue());
2621:	}
2622:	if ($type->isString()->yes()) {
2623:	$accessories = [];
2624:	if (!$type->isNonEmptyString()->yes()) {
2625:	return new StringType();
2626:	}
2627:
2628:	$accessories[] = new AccessoryNonEmptyStringType();
2629:	// it is not useful to apply numeric and literal strings here.
2630:	// numeric string isn't certainly kept numeric: 3v4l.org/JERDB
2631:
2632:	return new IntersectionType([new StringType(), ...$accessories]);
2633:	}
2634:	if ($type->isInteger()->yes() \|\| $type->isFloat()->yes()) {
2635:	return new IntegerType(); //no const types here, result depends on PHP_INT_SIZE
2636:	}
2637:	return new ErrorType();
2638:	});
2639:	}
2640:
2641:	private function resolveName(Name $name, ?ClassReflection $classReflection): string
2642:	{
2643:	$originalClass = (string) $name;
2644:	if ($classReflection !== null) {
2645:	$lowerClass = strtolower($originalClass);
2646:
2647:	if (in_array($lowerClass, [
2648:	'self',
2649:	'static',
2650:	], true)) {
2651:	return $classReflection->getName();
2652:	} elseif ($lowerClass === 'parent') {
2653:	if ($classReflection->getParentClass() !== null) {
2654:	return $classReflection->getParentClass()->getName();
2655:	}
2656:	}
2657:	}
2658:
2659:	return $originalClass;
2660:	}
2661:
2662:	private function resolveTypeByName(Name $name, ?ClassReflection $classReflection): TypeWithClassName
2663:	{
2664:	if ($name->toLowerString() === 'static' && $classReflection !== null) {
2665:	return new StaticType($classReflection);
2666:	}
2667:
2668:	$originalClass = $this->resolveName($name, $classReflection);
2669:	if ($classReflection !== null) {
2670:	$thisType = new ThisType($classReflection);
2671:	$ancestor = $thisType->getAncestorWithClassName($originalClass);
2672:	if ($ancestor !== null) {
2673:	return $ancestor;
2674:	}
2675:	}
2676:
2677:	return new ObjectType($originalClass);
2678:	}
2679:
2680:	private function resolveTypeByNameWithLateStaticBinding(Name $class, Type $classType, MethodReflection $methodReflectionCandidate): Type
2681:	{
2682:	if (
2683:	$classType instanceof StaticType
2684:	&& !in_array($class->toLowerString(), ['self', 'static', 'parent'], true)
2685:	) {
2686:	if ($methodReflectionCandidate->isStatic()) {
2687:	$classType = $classType->getStaticObjectType();
2688:	}
2689:	}
2690:
2691:	return $classType;
2692:	}
2693:
2694:	/**
2695:	* @param mixed $value
2696:	*/
2697:	private function getTypeFromValue($value): Type
2698:	{
2699:	return ConstantTypeHelper::getTypeFromValue($value);
2700:	}
2701:
2702:	private function getReflectionProvider(): ReflectionProvider
2703:	{
2704:	return $this->reflectionProviderProvider->getReflectionProvider();
2705:	}
2706:
2707:	private function getNeverType(Type $leftType, Type $rightType): Type
2708:	{
2709:	// make sure we don't lose the explicit flag in the process
2710:	if ($leftType instanceof NeverType && $leftType->isExplicit()) {
2711:	return $leftType;
2712:	}
2713:	if ($rightType instanceof NeverType && $rightType->isExplicit()) {
2714:	return $rightType;
2715:	}
2716:	return new NeverType();
2717:	}
2718:
2719:	}
2720:

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