File src/Analyser/NodeScopeResolver.php

1:	<?php declare(strict_types = 1);
2:
3:	namespace PHPStan\Analyser;
4:
5:	use ArrayAccess;
6:	use Closure;
7:	use DivisionByZeroError;
8:	use PhpParser\Comment\Doc;
9:	use PhpParser\Modifiers;
10:	use PhpParser\Node;
11:	use PhpParser\Node\Arg;
12:	use PhpParser\Node\AttributeGroup;
13:	use PhpParser\Node\Expr;
14:	use PhpParser\Node\Expr\Array_;
15:	use PhpParser\Node\Expr\ArrayDimFetch;
16:	use PhpParser\Node\Expr\Assign;
17:	use PhpParser\Node\Expr\AssignRef;
18:	use PhpParser\Node\Expr\BinaryOp;
19:	use PhpParser\Node\Expr\BinaryOp\BooleanAnd;
20:	use PhpParser\Node\Expr\BinaryOp\BooleanOr;
21:	use PhpParser\Node\Expr\BinaryOp\Coalesce;
22:	use PhpParser\Node\Expr\BooleanNot;
23:	use PhpParser\Node\Expr\CallLike;
24:	use PhpParser\Node\Expr\Cast;
25:	use PhpParser\Node\Expr\ConstFetch;
26:	use PhpParser\Node\Expr\ErrorSuppress;
27:	use PhpParser\Node\Expr\Exit_;
28:	use PhpParser\Node\Expr\FuncCall;
29:	use PhpParser\Node\Expr\Instanceof_;
30:	use PhpParser\Node\Expr\List_;
31:	use PhpParser\Node\Expr\MethodCall;
32:	use PhpParser\Node\Expr\New_;
33:	use PhpParser\Node\Expr\PropertyFetch;
34:	use PhpParser\Node\Expr\StaticCall;
35:	use PhpParser\Node\Expr\StaticPropertyFetch;
36:	use PhpParser\Node\Expr\Ternary;
37:	use PhpParser\Node\Expr\Variable;
38:	use PhpParser\Node\Name;
39:	use PhpParser\Node\Stmt\Break_;
40:	use PhpParser\Node\Stmt\Class_;
41:	use PhpParser\Node\Stmt\Continue_;
42:	use PhpParser\Node\Stmt\Do_;
43:	use PhpParser\Node\Stmt\Echo_;
44:	use PhpParser\Node\Stmt\For_;
45:	use PhpParser\Node\Stmt\Foreach_;
46:	use PhpParser\Node\Stmt\If_;
47:	use PhpParser\Node\Stmt\InlineHTML;
48:	use PhpParser\Node\Stmt\Return_;
49:	use PhpParser\Node\Stmt\Static_;
50:	use PhpParser\Node\Stmt\Switch_;
51:	use PhpParser\Node\Stmt\TryCatch;
52:	use PhpParser\Node\Stmt\Unset_;
53:	use PhpParser\Node\Stmt\While_;
54:	use PhpParser\NodeFinder;
55:	use PhpParser\NodeTraverser;
56:	use PhpParser\NodeVisitor\CloningVisitor;
57:	use PhpParser\NodeVisitorAbstract;
58:	use PHPStan\BetterReflection\Reflection\Adapter\ReflectionClass;
59:	use PHPStan\BetterReflection\Reflection\ReflectionEnum;
60:	use PHPStan\BetterReflection\Reflector\Reflector;
61:	use PHPStan\BetterReflection\SourceLocator\Ast\Strategy\NodeToReflection;
62:	use PHPStan\BetterReflection\SourceLocator\Located\LocatedSource;
63:	use PHPStan\DependencyInjection\Reflection\ClassReflectionExtensionRegistryProvider;
64:	use PHPStan\DependencyInjection\Type\DynamicThrowTypeExtensionProvider;
65:	use PHPStan\DependencyInjection\Type\ParameterClosureTypeExtensionProvider;
66:	use PHPStan\DependencyInjection\Type\ParameterOutTypeExtensionProvider;
67:	use PHPStan\File\FileHelper;
68:	use PHPStan\File\FileReader;
69:	use PHPStan\Node\BooleanAndNode;
70:	use PHPStan\Node\BooleanOrNode;
71:	use PHPStan\Node\BreaklessWhileLoopNode;
72:	use PHPStan\Node\CatchWithUnthrownExceptionNode;
73:	use PHPStan\Node\ClassConstantsNode;
74:	use PHPStan\Node\ClassMethodsNode;
75:	use PHPStan\Node\ClassPropertiesNode;
76:	use PHPStan\Node\ClassPropertyNode;
77:	use PHPStan\Node\ClassStatementsGatherer;
78:	use PHPStan\Node\ClosureReturnStatementsNode;
79:	use PHPStan\Node\DoWhileLoopConditionNode;
80:	use PHPStan\Node\ExecutionEndNode;
81:	use PHPStan\Node\Expr\AlwaysRememberedExpr;
82:	use PHPStan\Node\Expr\ExistingArrayDimFetch;
83:	use PHPStan\Node\Expr\GetIterableKeyTypeExpr;
84:	use PHPStan\Node\Expr\GetIterableValueTypeExpr;
85:	use PHPStan\Node\Expr\GetOffsetValueTypeExpr;
86:	use PHPStan\Node\Expr\OriginalPropertyTypeExpr;
87:	use PHPStan\Node\Expr\PropertyInitializationExpr;
88:	use PHPStan\Node\Expr\SetExistingOffsetValueTypeExpr;
89:	use PHPStan\Node\Expr\SetOffsetValueTypeExpr;
90:	use PHPStan\Node\Expr\TypeExpr;
91:	use PHPStan\Node\Expr\UnsetOffsetExpr;
92:	use PHPStan\Node\FinallyExitPointsNode;
93:	use PHPStan\Node\FunctionCallableNode;
94:	use PHPStan\Node\FunctionReturnStatementsNode;
95:	use PHPStan\Node\InArrowFunctionNode;
96:	use PHPStan\Node\InClassMethodNode;
97:	use PHPStan\Node\InClassNode;
98:	use PHPStan\Node\InClosureNode;
99:	use PHPStan\Node\InForeachNode;
100:	use PHPStan\Node\InFunctionNode;
101:	use PHPStan\Node\InstantiationCallableNode;
102:	use PHPStan\Node\InTraitNode;
103:	use PHPStan\Node\InvalidateExprNode;
104:	use PHPStan\Node\LiteralArrayItem;
105:	use PHPStan\Node\LiteralArrayNode;
106:	use PHPStan\Node\MatchExpressionArm;
107:	use PHPStan\Node\MatchExpressionArmBody;
108:	use PHPStan\Node\MatchExpressionArmCondition;
109:	use PHPStan\Node\MatchExpressionNode;
110:	use PHPStan\Node\MethodCallableNode;
111:	use PHPStan\Node\MethodReturnStatementsNode;
112:	use PHPStan\Node\NoopExpressionNode;
113:	use PHPStan\Node\PropertyAssignNode;
114:	use PHPStan\Node\ReturnStatement;
115:	use PHPStan\Node\StaticMethodCallableNode;
116:	use PHPStan\Node\UnreachableStatementNode;
117:	use PHPStan\Node\VariableAssignNode;
118:	use PHPStan\Node\VarTagChangedExpressionTypeNode;
119:	use PHPStan\Parser\ArrowFunctionArgVisitor;
120:	use PHPStan\Parser\ClosureArgVisitor;
121:	use PHPStan\Parser\ImmediatelyInvokedClosureVisitor;
122:	use PHPStan\Parser\Parser;
123:	use PHPStan\Php\PhpVersion;
124:	use PHPStan\PhpDoc\PhpDocInheritanceResolver;
125:	use PHPStan\PhpDoc\ResolvedPhpDocBlock;
126:	use PHPStan\PhpDoc\StubPhpDocProvider;
127:	use PHPStan\PhpDoc\Tag\VarTag;
128:	use PHPStan\Reflection\Assertions;
129:	use PHPStan\Reflection\Callables\CallableParametersAcceptor;
130:	use PHPStan\Reflection\Callables\SimpleImpurePoint;
131:	use PHPStan\Reflection\Callables\SimpleThrowPoint;
132:	use PHPStan\Reflection\ClassReflection;
133:	use PHPStan\Reflection\ExtendedMethodReflection;
134:	use PHPStan\Reflection\ExtendedParameterReflection;
135:	use PHPStan\Reflection\ExtendedParametersAcceptor;
136:	use PHPStan\Reflection\FunctionReflection;
137:	use PHPStan\Reflection\InitializerExprTypeResolver;
138:	use PHPStan\Reflection\MethodReflection;
139:	use PHPStan\Reflection\Native\NativeMethodReflection;
140:	use PHPStan\Reflection\Native\NativeParameterReflection;
141:	use PHPStan\Reflection\ParameterReflection;
142:	use PHPStan\Reflection\ParametersAcceptor;
143:	use PHPStan\Reflection\ParametersAcceptorSelector;
144:	use PHPStan\Reflection\Php\PhpFunctionFromParserNodeReflection;
145:	use PHPStan\Reflection\Php\PhpMethodFromParserNodeReflection;
146:	use PHPStan\Reflection\Php\PhpMethodReflection;
147:	use PHPStan\Reflection\ReflectionProvider;
148:	use PHPStan\Reflection\SignatureMap\SignatureMapProvider;
149:	use PHPStan\Rules\Properties\ReadWritePropertiesExtensionProvider;
150:	use PHPStan\ShouldNotHappenException;
151:	use PHPStan\TrinaryLogic;
152:	use PHPStan\Type\Accessory\AccessoryArrayListType;
153:	use PHPStan\Type\Accessory\NonEmptyArrayType;
154:	use PHPStan\Type\ArrayType;
155:	use PHPStan\Type\ClosureType;
156:	use PHPStan\Type\Constant\ConstantArrayType;
157:	use PHPStan\Type\Constant\ConstantArrayTypeBuilder;
158:	use PHPStan\Type\Constant\ConstantBooleanType;
159:	use PHPStan\Type\Constant\ConstantIntegerType;
160:	use PHPStan\Type\ErrorType;
161:	use PHPStan\Type\FileTypeMapper;
162:	use PHPStan\Type\GeneralizePrecision;
163:	use PHPStan\Type\Generic\TemplateTypeHelper;
164:	use PHPStan\Type\Generic\TemplateTypeMap;
165:	use PHPStan\Type\Generic\TemplateTypeVariance;
166:	use PHPStan\Type\Generic\TemplateTypeVarianceMap;
167:	use PHPStan\Type\IntegerType;
168:	use PHPStan\Type\IntersectionType;
169:	use PHPStan\Type\MixedType;
170:	use PHPStan\Type\NeverType;
171:	use PHPStan\Type\NullType;
172:	use PHPStan\Type\ObjectType;
173:	use PHPStan\Type\ObjectWithoutClassType;
174:	use PHPStan\Type\ParserNodeTypeToPHPStanType;
175:	use PHPStan\Type\ResourceType;
176:	use PHPStan\Type\StaticType;
177:	use PHPStan\Type\StaticTypeFactory;
178:	use PHPStan\Type\StringType;
179:	use PHPStan\Type\ThisType;
180:	use PHPStan\Type\Type;
181:	use PHPStan\Type\TypeCombinator;
182:	use PHPStan\Type\TypeTraverser;
183:	use PHPStan\Type\TypeUtils;
184:	use PHPStan\Type\UnionType;
185:	use ReflectionProperty;
186:	use Throwable;
187:	use Traversable;
188:	use TypeError;
189:	use UnhandledMatchError;
190:	use function array_fill_keys;
191:	use function array_filter;
192:	use function array_key_exists;
193:	use function array_key_last;
194:	use function array_keys;
195:	use function array_map;
196:	use function array_merge;
197:	use function array_pop;
198:	use function array_reverse;
199:	use function array_slice;
200:	use function array_values;
201:	use function base64_decode;
202:	use function count;
203:	use function in_array;
204:	use function is_array;
205:	use function is_int;
206:	use function is_string;
207:	use function ksort;
208:	use function sprintf;
209:	use function str_starts_with;
210:	use function strtolower;
211:	use function trim;
212:	use const PHP_VERSION_ID;
213:	use const SORT_NUMERIC;
214:
215:	final class NodeScopeResolver
216:	{
217:
218:	private const LOOP_SCOPE_ITERATIONS = 3;
219:	private const GENERALIZE_AFTER_ITERATION = 1;
220:
221:	/** @var bool[] filePath(string) => bool(true) */
222:	private array $analysedFiles = [];
223:
224:	/** @var array<string, true> */
225:	private array $earlyTerminatingMethodNames;
226:
227:	/** @var array<string, true> */
228:	private array $calledMethodStack = [];
229:
230:	/** @var array<string, MutatingScope\|null> */
231:	private array $calledMethodResults = [];
232:
233:	/**
234:	* @param string[][] $earlyTerminatingMethodCalls className(string) => methods(string[])
235:	* @param array<int, string> $earlyTerminatingFunctionCalls
236:	* @param string[] $universalObjectCratesClasses
237:	*/
238:	public function __construct(
239:	private readonly ReflectionProvider $reflectionProvider,
240:	private readonly InitializerExprTypeResolver $initializerExprTypeResolver,
241:	private readonly Reflector $reflector,
242:	private readonly ClassReflectionExtensionRegistryProvider $classReflectionExtensionRegistryProvider,
243:	private readonly ParameterOutTypeExtensionProvider $parameterOutTypeExtensionProvider,
244:	private readonly Parser $parser,
245:	private readonly FileTypeMapper $fileTypeMapper,
246:	private readonly StubPhpDocProvider $stubPhpDocProvider,
247:	private readonly PhpVersion $phpVersion,
248:	private readonly SignatureMapProvider $signatureMapProvider,
249:	private readonly PhpDocInheritanceResolver $phpDocInheritanceResolver,
250:	private readonly FileHelper $fileHelper,
251:	private readonly TypeSpecifier $typeSpecifier,
252:	private readonly DynamicThrowTypeExtensionProvider $dynamicThrowTypeExtensionProvider,
253:	private readonly ReadWritePropertiesExtensionProvider $readWritePropertiesExtensionProvider,
254:	private readonly ParameterClosureTypeExtensionProvider $parameterClosureTypeExtensionProvider,
255:	private readonly ScopeFactory $scopeFactory,
256:	private readonly bool $polluteScopeWithLoopInitialAssignments,
257:	private readonly bool $polluteScopeWithAlwaysIterableForeach,
258:	private readonly bool $polluteScopeWithBlock,
259:	private readonly array $earlyTerminatingMethodCalls,
260:	private readonly array $earlyTerminatingFunctionCalls,
261:	private readonly array $universalObjectCratesClasses,
262:	private readonly bool $implicitThrows,
263:	private readonly bool $treatPhpDocTypesAsCertain,
264:	)
265:	{
266:	$earlyTerminatingMethodNames = [];
267:	foreach ($this->earlyTerminatingMethodCalls as $methodNames) {
268:	foreach ($methodNames as $methodName) {
269:	$earlyTerminatingMethodNames[strtolower($methodName)] = true;
270:	}
271:	}
272:	$this->earlyTerminatingMethodNames = $earlyTerminatingMethodNames;
273:	}
274:
275:	/**
276:	* @api
277:	* @param string[] $files
278:	*/
279:	public function setAnalysedFiles(array $files): void
280:	{
281:	$this->analysedFiles = array_fill_keys($files, true);
282:	}
283:
284:	/**
285:	* @api
286:	* @param Node[] $nodes
287:	* @param callable(Node $node, Scope $scope): void $nodeCallback
288:	*/
289:	public function processNodes(
290:	array $nodes,
291:	MutatingScope $scope,
292:	callable $nodeCallback,
293:	): void
294:	{
295:	$alreadyTerminated = false;
296:	foreach ($nodes as $i => $node) {
297:	if (
298:	!$node instanceof Node\Stmt
299:	\|\| ($alreadyTerminated && !($node instanceof Node\Stmt\Function_ \|\| $node instanceof Node\Stmt\ClassLike))
300:	) {
301:	continue;
302:	}
303:
304:	$statementResult = $this->processStmtNode($node, $scope, $nodeCallback, StatementContext::createTopLevel());
305:	$scope = $statementResult->getScope();
306:	if ($alreadyTerminated \|\| !$statementResult->isAlwaysTerminating()) {
307:	continue;
308:	}
309:
310:	$alreadyTerminated = true;
311:	$nextStmt = $this->getFirstUnreachableNode(array_slice($nodes, $i + 1), true);
312:	if (!$nextStmt instanceof Node\Stmt) {
313:	continue;
314:	}
315:
316:	$nodeCallback(new UnreachableStatementNode($nextStmt), $scope);
317:	}
318:	}
319:
320:	/**
321:	* @api
322:	* @param Node\Stmt[] $stmts
323:	* @param callable(Node $node, Scope $scope): void $nodeCallback
324:	*/
325:	public function processStmtNodes(
326:	Node $parentNode,
327:	array $stmts,
328:	MutatingScope $scope,
329:	callable $nodeCallback,
330:	StatementContext $context,
331:	): StatementResult
332:	{
333:	$exitPoints = [];
334:	$throwPoints = [];
335:	$impurePoints = [];
336:	$alreadyTerminated = false;
337:	$hasYield = false;
338:	$stmtCount = count($stmts);
339:	$shouldCheckLastStatement = $parentNode instanceof Node\Stmt\Function_
340:	\|\| $parentNode instanceof Node\Stmt\ClassMethod
341:	\|\| $parentNode instanceof Expr\Closure;
342:	foreach ($stmts as $i => $stmt) {
343:	if ($alreadyTerminated && !($stmt instanceof Node\Stmt\Function_ \|\| $stmt instanceof Node\Stmt\ClassLike)) {
344:	continue;
345:	}
346:
347:	$isLast = $i === $stmtCount - 1;
348:	$statementResult = $this->processStmtNode(
349:	$stmt,
350:	$scope,
351:	$nodeCallback,
352:	$context,
353:	);
354:	$scope = $statementResult->getScope();
355:	$hasYield = $hasYield \|\| $statementResult->hasYield();
356:
357:	if ($shouldCheckLastStatement && $isLast) {
358:	/** @var Node\Stmt\Function_\|Node\Stmt\ClassMethod\|Expr\Closure $parentNode */
359:	$parentNode = $parentNode;
360:
361:	$endStatements = $statementResult->getEndStatements();
362:	if (count($endStatements) > 0) {
363:	foreach ($endStatements as $endStatement) {
364:	$endStatementResult = $endStatement->getResult();
365:	$nodeCallback(new ExecutionEndNode(
366:	$endStatement->getStatement(),
367:	new StatementResult(
368:	$endStatementResult->getScope(),
369:	$hasYield,
370:	$endStatementResult->isAlwaysTerminating(),
371:	$endStatementResult->getExitPoints(),
372:	$endStatementResult->getThrowPoints(),
373:	$endStatementResult->getImpurePoints(),
374:	),
375:	$parentNode->returnType !== null,
376:	), $endStatementResult->getScope());
377:	}
378:	} else {
379:	$nodeCallback(new ExecutionEndNode(
380:	$stmt,
381:	new StatementResult(
382:	$scope,
383:	$hasYield,
384:	$statementResult->isAlwaysTerminating(),
385:	$statementResult->getExitPoints(),
386:	$statementResult->getThrowPoints(),
387:	$statementResult->getImpurePoints(),
388:	),
389:	$parentNode->returnType !== null,
390:	), $scope);
391:	}
392:	}
393:
394:	$exitPoints = array_merge($exitPoints, $statementResult->getExitPoints());
395:	$throwPoints = array_merge($throwPoints, $statementResult->getThrowPoints());
396:	$impurePoints = array_merge($impurePoints, $statementResult->getImpurePoints());
397:
398:	if ($alreadyTerminated \|\| !$statementResult->isAlwaysTerminating()) {
399:	continue;
400:	}
401:
402:	$alreadyTerminated = true;
403:	$nextStmt = $this->getFirstUnreachableNode(array_slice($stmts, $i + 1), $parentNode instanceof Node\Stmt\Namespace_);
404:	if ($nextStmt === null) {
405:	continue;
406:	}
407:	$nodeCallback(new UnreachableStatementNode($nextStmt), $scope);
408:	}
409:
410:	$statementResult = new StatementResult($scope, $hasYield, $alreadyTerminated, $exitPoints, $throwPoints, $impurePoints);
411:	if ($stmtCount === 0 && $shouldCheckLastStatement) {
412:	/** @var Node\Stmt\Function_\|Node\Stmt\ClassMethod\|Expr\Closure $parentNode */
413:	$parentNode = $parentNode;
414:	$returnTypeNode = $parentNode->returnType;
415:	if ($parentNode instanceof Expr\Closure) {
416:	$parentNode = new Node\Stmt\Expression($parentNode, $parentNode->getAttributes());
417:	}
418:	$nodeCallback(new ExecutionEndNode(
419:	$parentNode,
420:	$statementResult,
421:	$returnTypeNode !== null,
422:	), $scope);
423:	}
424:
425:	return $statementResult;
426:	}
427:
428:	/**
429:	* @param callable(Node $node, Scope $scope): void $nodeCallback
430:	*/
431:	private function processStmtNode(
432:	Node\Stmt $stmt,
433:	MutatingScope $scope,
434:	callable $nodeCallback,
435:	StatementContext $context,
436:	): StatementResult
437:	{
438:	if (
439:	!$stmt instanceof Static_
440:	&& !$stmt instanceof Foreach_
441:	&& !$stmt instanceof Node\Stmt\Global_
442:	&& !$stmt instanceof Node\Stmt\Property
443:	&& !$stmt instanceof Node\Stmt\ClassConst
444:	&& !$stmt instanceof Node\Stmt\Const_
445:	) {
446:	$scope = $this->processStmtVarAnnotation($scope, $stmt, null, $nodeCallback);
447:	}
448:
449:	if ($stmt instanceof Node\Stmt\ClassMethod) {
450:	if (!$scope->isInClass()) {
451:	throw new ShouldNotHappenException();
452:	}
453:	if (
454:	$scope->isInTrait()
455:	&& $scope->getClassReflection()->hasNativeMethod($stmt->name->toString())
456:	) {
457:	$methodReflection = $scope->getClassReflection()->getNativeMethod($stmt->name->toString());
458:	if ($methodReflection instanceof NativeMethodReflection) {
459:	return new StatementResult($scope, false, false, [], [], []);
460:	}
461:	if ($methodReflection instanceof PhpMethodReflection) {
462:	$declaringTrait = $methodReflection->getDeclaringTrait();
463:	if ($declaringTrait === null \|\| $declaringTrait->getName() !== $scope->getTraitReflection()->getName()) {
464:	return new StatementResult($scope, false, false, [], [], []);
465:	}
466:	}
467:	}
468:	}
469:
470:	$stmtScope = $scope;
471:	if ($stmt instanceof Node\Stmt\Expression && $stmt->expr instanceof Expr\Throw_) {
472:	$stmtScope = $this->processStmtVarAnnotation($scope, $stmt, $stmt->expr->expr, $nodeCallback);
473:	}
474:	if ($stmt instanceof Return_) {
475:	$stmtScope = $this->processStmtVarAnnotation($scope, $stmt, $stmt->expr, $nodeCallback);
476:	}
477:
478:	$nodeCallback($stmt, $stmtScope);
479:
480:	$overridingThrowPoints = $this->getOverridingThrowPoints($stmt, $scope);
481:
482:	if ($stmt instanceof Node\Stmt\Declare_) {
483:	$hasYield = false;
484:	$throwPoints = [];
485:	$impurePoints = [];
486:	$alwaysTerminating = false;
487:	$exitPoints = [];
488:	foreach ($stmt->declares as $declare) {
489:	$nodeCallback($declare, $scope);
490:	$nodeCallback($declare->value, $scope);
491:	if (
492:	$declare->key->name !== 'strict_types'
493:	\|\| !($declare->value instanceof Node\Scalar\Int_)
494:	\|\| $declare->value->value !== 1
495:	) {
496:	continue;
497:	}
498:
499:	$scope = $scope->enterDeclareStrictTypes();
500:	}
501:
502:	if ($stmt->stmts !== null) {
503:	$result = $this->processStmtNodes($stmt, $stmt->stmts, $scope, $nodeCallback, $context);
504:	$scope = $result->getScope();
505:	$hasYield = $result->hasYield();
506:	$throwPoints = $result->getThrowPoints();
507:	$impurePoints = $result->getImpurePoints();
508:	$alwaysTerminating = $result->isAlwaysTerminating();
509:	$exitPoints = $result->getExitPoints();
510:	}
511:
512:	return new StatementResult($scope, $hasYield, $alwaysTerminating, $exitPoints, $throwPoints, $impurePoints);
513:	} elseif ($stmt instanceof Node\Stmt\Function_) {
514:	$hasYield = false;
515:	$throwPoints = [];
516:	$impurePoints = [];
517:	$this->processAttributeGroups($stmt, $stmt->attrGroups, $scope, $nodeCallback);
518:	[$templateTypeMap, $phpDocParameterTypes, $phpDocImmediatelyInvokedCallableParameters, $phpDocClosureThisTypeParameters, $phpDocReturnType, $phpDocThrowType, $deprecatedDescription, $isDeprecated, $isInternal, , $isPure, $acceptsNamedArguments, , $phpDocComment, $asserts,, $phpDocParameterOutTypes] = $this->getPhpDocs($scope, $stmt);
519:
520:	foreach ($stmt->params as $param) {
521:	$this->processParamNode($stmt, $param, $scope, $nodeCallback);
522:	}
523:
524:	if ($stmt->returnType !== null) {
525:	$nodeCallback($stmt->returnType, $scope);
526:	}
527:
528:	$functionScope = $scope->enterFunction(
529:	$stmt,
530:	$templateTypeMap,
531:	$phpDocParameterTypes,
532:	$phpDocReturnType,
533:	$phpDocThrowType,
534:	$deprecatedDescription,
535:	$isDeprecated,
536:	$isInternal,
537:	$isPure,
538:	$acceptsNamedArguments,
539:	$asserts,
540:	$phpDocComment,
541:	$phpDocParameterOutTypes,
542:	$phpDocImmediatelyInvokedCallableParameters,
543:	$phpDocClosureThisTypeParameters,
544:	);
545:	$functionReflection = $functionScope->getFunction();
546:	if (!$functionReflection instanceof PhpFunctionFromParserNodeReflection) {
547:	throw new ShouldNotHappenException();
548:	}
549:
550:	$nodeCallback(new InFunctionNode($functionReflection, $stmt), $functionScope);
551:
552:	$gatheredReturnStatements = [];
553:	$gatheredYieldStatements = [];
554:	$executionEnds = [];
555:	$functionImpurePoints = [];
556:	$statementResult = $this->processStmtNodes($stmt, $stmt->stmts, $functionScope, static function (Node $node, Scope $scope) use ($nodeCallback, $functionScope, &$gatheredReturnStatements, &$gatheredYieldStatements, &$executionEnds, &$functionImpurePoints): void {
557:	$nodeCallback($node, $scope);
558:	if ($scope->getFunction() !== $functionScope->getFunction()) {
559:	return;
560:	}
561:	if ($scope->isInAnonymousFunction()) {
562:	return;
563:	}
564:	if ($node instanceof PropertyAssignNode) {
565:	$functionImpurePoints[] = new ImpurePoint(
566:	$scope,
567:	$node,
568:	'propertyAssign',
569:	'property assignment',
570:	true,
571:	);
572:	return;
573:	}
574:	if ($node instanceof ExecutionEndNode) {
575:	$executionEnds[] = $node;
576:	return;
577:	}
578:	if ($node instanceof Expr\Yield_ \|\| $node instanceof Expr\YieldFrom) {
579:	$gatheredYieldStatements[] = $node;
580:	}
581:	if (!$node instanceof Return_) {
582:	return;
583:	}
584:
585:	$gatheredReturnStatements[] = new ReturnStatement($scope, $node);
586:	}, StatementContext::createTopLevel());
587:
588:	$nodeCallback(new FunctionReturnStatementsNode(
589:	$stmt,
590:	$gatheredReturnStatements,
591:	$gatheredYieldStatements,
592:	$statementResult,
593:	$executionEnds,
594:	array_merge($statementResult->getImpurePoints(), $functionImpurePoints),
595:	$functionReflection,
596:	), $functionScope);
597:	} elseif ($stmt instanceof Node\Stmt\ClassMethod) {
598:	$hasYield = false;
599:	$throwPoints = [];
600:	$impurePoints = [];
601:	$this->processAttributeGroups($stmt, $stmt->attrGroups, $scope, $nodeCallback);
602:	[$templateTypeMap, $phpDocParameterTypes, $phpDocImmediatelyInvokedCallableParameters, $phpDocClosureThisTypeParameters, $phpDocReturnType, $phpDocThrowType, $deprecatedDescription, $isDeprecated, $isInternal, $isFinal, $isPure, $acceptsNamedArguments, , $phpDocComment, $asserts, $selfOutType, $phpDocParameterOutTypes] = $this->getPhpDocs($scope, $stmt);
603:
604:	foreach ($stmt->params as $param) {
605:	$this->processParamNode($stmt, $param, $scope, $nodeCallback);
606:	}
607:
608:	if ($stmt->returnType !== null) {
609:	$nodeCallback($stmt->returnType, $scope);
610:	}
611:
612:	$methodScope = $scope->enterClassMethod(
613:	$stmt,
614:	$templateTypeMap,
615:	$phpDocParameterTypes,
616:	$phpDocReturnType,
617:	$phpDocThrowType,
618:	$deprecatedDescription,
619:	$isDeprecated,
620:	$isInternal,
621:	$isFinal,
622:	$isPure,
623:	$acceptsNamedArguments,
624:	$asserts,
625:	$selfOutType,
626:	$phpDocComment,
627:	$phpDocParameterOutTypes,
628:	$phpDocImmediatelyInvokedCallableParameters,
629:	$phpDocClosureThisTypeParameters,
630:	);
631:
632:	if (!$scope->isInClass()) {
633:	throw new ShouldNotHappenException();
634:	}
635:
636:	$isFromTrait = $stmt->getAttribute('originalTraitMethodName') === '__construct';
637:	if ($isFromTrait \|\| $stmt->name->toLowerString() === '__construct') {
638:	foreach ($stmt->params as $param) {
639:	if ($param->flags === 0) {
640:	continue;
641:	}
642:
643:	if (!$param->var instanceof Variable \|\| !is_string($param->var->name)) {
644:	throw new ShouldNotHappenException();
645:	}
646:	$phpDoc = null;
647:	if ($param->getDocComment() !== null) {
648:	$phpDoc = $param->getDocComment()->getText();
649:	}
650:	$nodeCallback(new ClassPropertyNode(
651:	$param->var->name,
652:	$param->flags,
653:	$param->type !== null ? ParserNodeTypeToPHPStanType::resolve($param->type, $scope->getClassReflection()) : null,
654:	null,
655:	$phpDoc,
656:	$phpDocParameterTypes[$param->var->name] ?? null,
657:	true,
658:	$isFromTrait,
659:	$param,
660:	false,
661:	$scope->isInTrait(),
662:	$scope->getClassReflection()->isReadOnly(),
663:	false,
664:	$scope->getClassReflection(),
665:	), $methodScope);
666:	$methodScope = $methodScope->assignExpression(new PropertyInitializationExpr($param->var->name), new MixedType(), new MixedType());
667:	}
668:	}
669:
670:	if ($stmt->getAttribute('virtual', false) === false) {
671:	$methodReflection = $methodScope->getFunction();
672:	if (!$methodReflection instanceof PhpMethodFromParserNodeReflection) {
673:	throw new ShouldNotHappenException();
674:	}
675:	$nodeCallback(new InClassMethodNode($scope->getClassReflection(), $methodReflection, $stmt), $methodScope);
676:	}
677:
678:	if ($stmt->stmts !== null) {
679:	$gatheredReturnStatements = [];
680:	$gatheredYieldStatements = [];
681:	$executionEnds = [];
682:	$methodImpurePoints = [];
683:	$statementResult = $this->processStmtNodes($stmt, $stmt->stmts, $methodScope, static function (Node $node, Scope $scope) use ($nodeCallback, $methodScope, &$gatheredReturnStatements, &$gatheredYieldStatements, &$executionEnds, &$methodImpurePoints): void {
684:	$nodeCallback($node, $scope);
685:	if ($scope->getFunction() !== $methodScope->getFunction()) {
686:	return;
687:	}
688:	if ($scope->isInAnonymousFunction()) {
689:	return;
690:	}
691:	if ($node instanceof PropertyAssignNode) {
692:	if (
693:	$node->getPropertyFetch() instanceof Expr\PropertyFetch
694:	&& $scope->getFunction() instanceof PhpMethodFromParserNodeReflection
695:	&& $scope->getFunction()->getDeclaringClass()->hasConstructor()
696:	&& $scope->getFunction()->getDeclaringClass()->getConstructor()->getName() === $scope->getFunction()->getName()
697:	&& TypeUtils::findThisType($scope->getType($node->getPropertyFetch()->var)) !== null
698:	) {
699:	return;
700:	}
701:	$methodImpurePoints[] = new ImpurePoint(
702:	$scope,
703:	$node,
704:	'propertyAssign',
705:	'property assignment',
706:	true,
707:	);
708:	return;
709:	}
710:	if ($node instanceof ExecutionEndNode) {
711:	$executionEnds[] = $node;
712:	return;
713:	}
714:	if ($node instanceof Expr\Yield_ \|\| $node instanceof Expr\YieldFrom) {
715:	$gatheredYieldStatements[] = $node;
716:	}
717:	if (!$node instanceof Return_) {
718:	return;
719:	}
720:
721:	$gatheredReturnStatements[] = new ReturnStatement($scope, $node);
722:	}, StatementContext::createTopLevel());
723:
724:	$classReflection = $scope->getClassReflection();
725:
726:	$methodReflection = $methodScope->getFunction();
727:	if (!$methodReflection instanceof PhpMethodFromParserNodeReflection) {
728:	throw new ShouldNotHappenException();
729:	}
730:
731:	$nodeCallback(new MethodReturnStatementsNode(
732:	$stmt,
733:	$gatheredReturnStatements,
734:	$gatheredYieldStatements,
735:	$statementResult,
736:	$executionEnds,
737:	array_merge($statementResult->getImpurePoints(), $methodImpurePoints),
738:	$classReflection,
739:	$methodReflection,
740:	), $methodScope);
741:	}
742:	} elseif ($stmt instanceof Echo_) {
743:	$hasYield = false;
744:	$throwPoints = [];
745:	foreach ($stmt->exprs as $echoExpr) {
746:	$result = $this->processExprNode($stmt, $echoExpr, $scope, $nodeCallback, ExpressionContext::createDeep());
747:	$throwPoints = array_merge($throwPoints, $result->getThrowPoints());
748:	$scope = $result->getScope();
749:	$hasYield = $hasYield \|\| $result->hasYield();
750:	}
751:
752:	$throwPoints = $overridingThrowPoints ?? $throwPoints;
753:	$impurePoints = [
754:	new ImpurePoint($scope, $stmt, 'echo', 'echo', true),
755:	];
756:	} elseif ($stmt instanceof Return_) {
757:	if ($stmt->expr !== null) {
758:	$result = $this->processExprNode($stmt, $stmt->expr, $scope, $nodeCallback, ExpressionContext::createDeep());
759:	$throwPoints = $result->getThrowPoints();
760:	$impurePoints = $result->getImpurePoints();
761:	$scope = $result->getScope();
762:	$hasYield = $result->hasYield();
763:	} else {
764:	$hasYield = false;
765:	$throwPoints = [];
766:	$impurePoints = [];
767:	}
768:
769:	return new StatementResult($scope, $hasYield, true, [
770:	new StatementExitPoint($stmt, $scope),
771:	], $overridingThrowPoints ?? $throwPoints, $impurePoints);
772:	} elseif ($stmt instanceof Continue_ \|\| $stmt instanceof Break_) {
773:	if ($stmt->num !== null) {
774:	$result = $this->processExprNode($stmt, $stmt->num, $scope, $nodeCallback, ExpressionContext::createDeep());
775:	$scope = $result->getScope();
776:	$hasYield = $result->hasYield();
777:	$throwPoints = $result->getThrowPoints();
778:	$impurePoints = $result->getImpurePoints();
779:	} else {
780:	$hasYield = false;
781:	$throwPoints = [];
782:	$impurePoints = [];
783:	}
784:
785:	return new StatementResult($scope, $hasYield, true, [
786:	new StatementExitPoint($stmt, $scope),
787:	], $overridingThrowPoints ?? $throwPoints, $impurePoints);
788:	} elseif ($stmt instanceof Node\Stmt\Expression) {
789:	if ($stmt->expr instanceof Expr\Throw_) {
790:	$scope = $stmtScope;
791:	}
792:	$earlyTerminationExpr = $this->findEarlyTerminatingExpr($stmt->expr, $scope);
793:	$hasAssign = false;
794:	$currentScope = $scope;
795:	$result = $this->processExprNode($stmt, $stmt->expr, $scope, static function (Node $node, Scope $scope) use ($nodeCallback, $currentScope, &$hasAssign): void {
796:	$nodeCallback($node, $scope);
797:	if ($scope->getAnonymousFunctionReflection() !== $currentScope->getAnonymousFunctionReflection()) {
798:	return;
799:	}
800:	if ($scope->getFunction() !== $currentScope->getFunction()) {
801:	return;
802:	}
803:	if (!$node instanceof VariableAssignNode && !$node instanceof PropertyAssignNode) {
804:	return;
805:	}
806:
807:	$hasAssign = true;
808:	}, ExpressionContext::createTopLevel());
809:	$throwPoints = array_filter($result->getThrowPoints(), static fn ($throwPoint) => $throwPoint->isExplicit());
810:	if (
811:	count($result->getImpurePoints()) === 0
812:	&& count($throwPoints) === 0
813:	&& !$stmt->expr instanceof Expr\PostInc
814:	&& !$stmt->expr instanceof Expr\PreInc
815:	&& !$stmt->expr instanceof Expr\PostDec
816:	&& !$stmt->expr instanceof Expr\PreDec
817:	) {
818:	$nodeCallback(new NoopExpressionNode($stmt->expr, $hasAssign), $scope);
819:	}
820:	$scope = $result->getScope();
821:	$scope = $scope->filterBySpecifiedTypes($this->typeSpecifier->specifyTypesInCondition(
822:	$scope,
823:	$stmt->expr,
824:	TypeSpecifierContext::createNull(),
825:	));
826:	$hasYield = $result->hasYield();
827:	$throwPoints = $result->getThrowPoints();
828:	$impurePoints = $result->getImpurePoints();
829:	if ($earlyTerminationExpr !== null) {
830:	return new StatementResult($scope, $hasYield, true, [
831:	new StatementExitPoint($stmt, $scope),
832:	], $overridingThrowPoints ?? $throwPoints, $impurePoints);
833:	}
834:	return new StatementResult($scope, $hasYield, false, [], $overridingThrowPoints ?? $throwPoints, $impurePoints);
835:	} elseif ($stmt instanceof Node\Stmt\Namespace_) {
836:	if ($stmt->name !== null) {
837:	$scope = $scope->enterNamespace($stmt->name->toString());
838:	}
839:
840:	$scope = $this->processStmtNodes($stmt, $stmt->stmts, $scope, $nodeCallback, $context)->getScope();
841:	$hasYield = false;
842:	$throwPoints = [];
843:	$impurePoints = [];
844:	} elseif ($stmt instanceof Node\Stmt\Trait_) {
845:	return new StatementResult($scope, false, false, [], [], []);
846:	} elseif ($stmt instanceof Node\Stmt\ClassLike) {
847:	$hasYield = false;
848:	$throwPoints = [];
849:	$impurePoints = [];
850:	if (isset($stmt->namespacedName)) {
851:	$classReflection = $this->getCurrentClassReflection($stmt, $stmt->namespacedName->toString(), $scope);
852:	$classScope = $scope->enterClass($classReflection);
853:	$nodeCallback(new InClassNode($stmt, $classReflection), $classScope);
854:	} elseif ($stmt instanceof Class_) {
855:	if ($stmt->name === null) {
856:	throw new ShouldNotHappenException();
857:	}
858:	if (!$stmt->isAnonymous()) {
859:	$classReflection = $this->reflectionProvider->getClass($stmt->name->toString());
860:	} else {
861:	$classReflection = $this->reflectionProvider->getAnonymousClassReflection($stmt, $scope);
862:	}
863:	$classScope = $scope->enterClass($classReflection);
864:	$nodeCallback(new InClassNode($stmt, $classReflection), $classScope);
865:	} else {
866:	throw new ShouldNotHappenException();
867:	}
868:
869:	$classStatementsGatherer = new ClassStatementsGatherer($classReflection, $nodeCallback);
870:	$this->processAttributeGroups($stmt, $stmt->attrGroups, $classScope, $classStatementsGatherer);
871:
872:	$this->processStmtNodes($stmt, $stmt->stmts, $classScope, $classStatementsGatherer, $context);
873:	$nodeCallback(new ClassPropertiesNode($stmt, $this->readWritePropertiesExtensionProvider, $classStatementsGatherer->getProperties(), $classStatementsGatherer->getPropertyUsages(), $classStatementsGatherer->getMethodCalls(), $classStatementsGatherer->getReturnStatementsNodes(), $classStatementsGatherer->getPropertyAssigns(), $classReflection), $classScope);
874:	$nodeCallback(new ClassMethodsNode($stmt, $classStatementsGatherer->getMethods(), $classStatementsGatherer->getMethodCalls(), $classReflection), $classScope);
875:	$nodeCallback(new ClassConstantsNode($stmt, $classStatementsGatherer->getConstants(), $classStatementsGatherer->getConstantFetches(), $classReflection), $classScope);
876:	$classReflection->evictPrivateSymbols();
877:	$this->calledMethodResults = [];
878:	} elseif ($stmt instanceof Node\Stmt\Property) {
879:	$hasYield = false;
880:	$throwPoints = [];
881:	$impurePoints = [];
882:	$this->processAttributeGroups($stmt, $stmt->attrGroups, $scope, $nodeCallback);
883:
884:	foreach ($stmt->props as $prop) {
885:	$nodeCallback($prop, $scope);
886:	if ($prop->default !== null) {
887:	$this->processExprNode($stmt, $prop->default, $scope, $nodeCallback, ExpressionContext::createDeep());
888:	}
889:	[,,,,,,,,,,,,$isReadOnly, $docComment, ,,,$varTags, $isAllowedPrivateMutation] = $this->getPhpDocs($scope, $stmt);
890:	if (!$scope->isInClass()) {
891:	throw new ShouldNotHappenException();
892:	}
893:	$propertyName = $prop->name->toString();
894:	$phpDocType = null;
895:	if (isset($varTags[0]) && count($varTags) === 1) {
896:	$phpDocType = $varTags[0]->getType();
897:	} elseif (isset($varTags[$propertyName])) {
898:	$phpDocType = $varTags[$propertyName]->getType();
899:	}
900:	$propStmt = clone $stmt;
901:	$propStmt->setAttributes($prop->getAttributes());
902:	$nodeCallback(
903:	new ClassPropertyNode(
904:	$propertyName,
905:	$stmt->flags,
906:	$stmt->type !== null ? ParserNodeTypeToPHPStanType::resolve($stmt->type, $scope->getClassReflection()) : null,
907:	$prop->default,
908:	$docComment,
909:	$phpDocType,
910:	false,
911:	false,
912:	$propStmt,
913:	$isReadOnly,
914:	$scope->isInTrait(),
915:	$scope->getClassReflection()->isReadOnly(),
916:	$isAllowedPrivateMutation,
917:	$scope->getClassReflection(),
918:	),
919:	$scope,
920:	);
921:	}
922:
923:	if ($stmt->type !== null) {
924:	$nodeCallback($stmt->type, $scope);
925:	}
926:	} elseif ($stmt instanceof If_) {
927:	$conditionType = ($this->treatPhpDocTypesAsCertain ? $scope->getType($stmt->cond) : $scope->getNativeType($stmt->cond))->toBoolean();
928:	$ifAlwaysTrue = $conditionType->isTrue()->yes();
929:	$condResult = $this->processExprNode($stmt, $stmt->cond, $scope, $nodeCallback, ExpressionContext::createDeep());
930:	$exitPoints = [];
931:	$throwPoints = $overridingThrowPoints ?? $condResult->getThrowPoints();
932:	$impurePoints = $condResult->getImpurePoints();
933:	$endStatements = [];
934:	$finalScope = null;
935:	$alwaysTerminating = true;
936:	$hasYield = $condResult->hasYield();
937:
938:	$branchScopeStatementResult = $this->processStmtNodes($stmt, $stmt->stmts, $condResult->getTruthyScope(), $nodeCallback, $context);
939:
940:	if (!$conditionType instanceof ConstantBooleanType \|\| $conditionType->getValue()) {
941:	$exitPoints = $branchScopeStatementResult->getExitPoints();
942:	$throwPoints = array_merge($throwPoints, $branchScopeStatementResult->getThrowPoints());
943:	$impurePoints = array_merge($impurePoints, $branchScopeStatementResult->getImpurePoints());
944:	$branchScope = $branchScopeStatementResult->getScope();
945:	$finalScope = $branchScopeStatementResult->isAlwaysTerminating() ? null : $branchScope;
946:	$alwaysTerminating = $branchScopeStatementResult->isAlwaysTerminating();
947:	if (count($branchScopeStatementResult->getEndStatements()) > 0) {
948:	$endStatements = array_merge($endStatements, $branchScopeStatementResult->getEndStatements());
949:	} elseif (count($stmt->stmts) > 0) {
950:	$endStatements[] = new EndStatementResult($stmt->stmts[count($stmt->stmts) - 1], $branchScopeStatementResult);
951:	} else {
952:	$endStatements[] = new EndStatementResult($stmt, $branchScopeStatementResult);
953:	}
954:	$hasYield = $branchScopeStatementResult->hasYield() \|\| $hasYield;
955:	}
956:
957:	$scope = $condResult->getFalseyScope();
958:	$lastElseIfConditionIsTrue = false;
959:
960:	$condScope = $scope;
961:	foreach ($stmt->elseifs as $elseif) {
962:	$nodeCallback($elseif, $scope);
963:	$elseIfConditionType = ($this->treatPhpDocTypesAsCertain ? $condScope->getType($elseif->cond) : $scope->getNativeType($elseif->cond))->toBoolean();
964:	$condResult = $this->processExprNode($stmt, $elseif->cond, $condScope, $nodeCallback, ExpressionContext::createDeep());
965:	$throwPoints = array_merge($throwPoints, $condResult->getThrowPoints());
966:	$impurePoints = array_merge($impurePoints, $condResult->getImpurePoints());
967:	$condScope = $condResult->getScope();
968:	$branchScopeStatementResult = $this->processStmtNodes($elseif, $elseif->stmts, $condResult->getTruthyScope(), $nodeCallback, $context);
969:
970:	if (
971:	!$ifAlwaysTrue
972:	&& (
973:	!$lastElseIfConditionIsTrue
974:	&& (
975:	!$elseIfConditionType instanceof ConstantBooleanType
976:	\|\| $elseIfConditionType->getValue()
977:	)
978:	)
979:	) {
980:	$exitPoints = array_merge($exitPoints, $branchScopeStatementResult->getExitPoints());
981:	$throwPoints = array_merge($throwPoints, $branchScopeStatementResult->getThrowPoints());
982:	$impurePoints = array_merge($impurePoints, $branchScopeStatementResult->getImpurePoints());
983:	$branchScope = $branchScopeStatementResult->getScope();
984:	$finalScope = $branchScopeStatementResult->isAlwaysTerminating() ? $finalScope : $branchScope->mergeWith($finalScope);
985:	$alwaysTerminating = $alwaysTerminating && $branchScopeStatementResult->isAlwaysTerminating();
986:	if (count($branchScopeStatementResult->getEndStatements()) > 0) {
987:	$endStatements = array_merge($endStatements, $branchScopeStatementResult->getEndStatements());
988:	} elseif (count($elseif->stmts) > 0) {
989:	$endStatements[] = new EndStatementResult($elseif->stmts[count($elseif->stmts) - 1], $branchScopeStatementResult);
990:	} else {
991:	$endStatements[] = new EndStatementResult($elseif, $branchScopeStatementResult);
992:	}
993:	$hasYield = $hasYield \|\| $branchScopeStatementResult->hasYield();
994:	}
995:
996:	if (
997:	$elseIfConditionType->isTrue()->yes()
998:	) {
999:	$lastElseIfConditionIsTrue = true;
1000:	}
1001:
1002:	$condScope = $condScope->filterByFalseyValue($elseif->cond);
1003:	$scope = $condScope;
1004:	}
1005:
1006:	if ($stmt->else === null) {
1007:	if (!$ifAlwaysTrue && !$lastElseIfConditionIsTrue) {
1008:	$finalScope = $scope->mergeWith($finalScope);
1009:	$alwaysTerminating = false;
1010:	}
1011:	} else {
1012:	$nodeCallback($stmt->else, $scope);
1013:	$branchScopeStatementResult = $this->processStmtNodes($stmt->else, $stmt->else->stmts, $scope, $nodeCallback, $context);
1014:
1015:	if (!$ifAlwaysTrue && !$lastElseIfConditionIsTrue) {
1016:	$exitPoints = array_merge($exitPoints, $branchScopeStatementResult->getExitPoints());
1017:	$throwPoints = array_merge($throwPoints, $branchScopeStatementResult->getThrowPoints());
1018:	$impurePoints = array_merge($impurePoints, $branchScopeStatementResult->getImpurePoints());
1019:	$branchScope = $branchScopeStatementResult->getScope();
1020:	$finalScope = $branchScopeStatementResult->isAlwaysTerminating() ? $finalScope : $branchScope->mergeWith($finalScope);
1021:	$alwaysTerminating = $alwaysTerminating && $branchScopeStatementResult->isAlwaysTerminating();
1022:	if (count($branchScopeStatementResult->getEndStatements()) > 0) {
1023:	$endStatements = array_merge($endStatements, $branchScopeStatementResult->getEndStatements());
1024:	} elseif (count($stmt->else->stmts) > 0) {
1025:	$endStatements[] = new EndStatementResult($stmt->else->stmts[count($stmt->else->stmts) - 1], $branchScopeStatementResult);
1026:	} else {
1027:	$endStatements[] = new EndStatementResult($stmt->else, $branchScopeStatementResult);
1028:	}
1029:	$hasYield = $hasYield \|\| $branchScopeStatementResult->hasYield();
1030:	}
1031:	}
1032:
1033:	if ($finalScope === null) {
1034:	$finalScope = $scope;
1035:	}
1036:
1037:	if ($stmt->else === null && !$ifAlwaysTrue && !$lastElseIfConditionIsTrue) {
1038:	$endStatements[] = new EndStatementResult($stmt, new StatementResult($finalScope, $hasYield, $alwaysTerminating, $exitPoints, $throwPoints, $impurePoints));
1039:	}
1040:
1041:	return new StatementResult($finalScope, $hasYield, $alwaysTerminating, $exitPoints, $throwPoints, $impurePoints, $endStatements);
1042:	} elseif ($stmt instanceof Node\Stmt\TraitUse) {
1043:	$hasYield = false;
1044:	$throwPoints = [];
1045:	$impurePoints = [];
1046:	$this->processTraitUse($stmt, $scope, $nodeCallback);
1047:	} elseif ($stmt instanceof Foreach_) {
1048:	$condResult = $this->processExprNode($stmt, $stmt->expr, $scope, $nodeCallback, ExpressionContext::createDeep());
1049:	$throwPoints = $overridingThrowPoints ?? $condResult->getThrowPoints();
1050:	$impurePoints = $condResult->getImpurePoints();
1051:	$scope = $condResult->getScope();
1052:	$arrayComparisonExpr = new BinaryOp\NotIdentical(
1053:	$stmt->expr,
1054:	new Array_([]),
1055:	);
1056:	if ($stmt->expr instanceof Variable && is_string($stmt->expr->name)) {
1057:	$scope = $this->processVarAnnotation($scope, [$stmt->expr->name], $stmt);
1058:	}
1059:	$nodeCallback(new InForeachNode($stmt), $scope);
1060:	$originalScope = $scope;
1061:	$bodyScope = $scope;
1062:
1063:	if ($context->isTopLevel()) {
1064:	$originalScope = $this->polluteScopeWithAlwaysIterableForeach ? $scope->filterByTruthyValue($arrayComparisonExpr) : $scope;
1065:	$bodyScope = $this->enterForeach($originalScope, $originalScope, $stmt);
1066:	$count = 0;
1067:	do {
1068:	$prevScope = $bodyScope;
1069:	$bodyScope = $bodyScope->mergeWith($this->polluteScopeWithAlwaysIterableForeach ? $scope->filterByTruthyValue($arrayComparisonExpr) : $scope);
1070:	$bodyScope = $this->enterForeach($bodyScope, $originalScope, $stmt);
1071:	$bodyScopeResult = $this->processStmtNodes($stmt, $stmt->stmts, $bodyScope, static function (): void {
1072:	}, $context->enterDeep())->filterOutLoopExitPoints();
1073:	$bodyScope = $bodyScopeResult->getScope();
1074:	foreach ($bodyScopeResult->getExitPointsByType(Continue_::class) as $continueExitPoint) {
1075:	$bodyScope = $bodyScope->mergeWith($continueExitPoint->getScope());
1076:	}
1077:	if ($bodyScope->equals($prevScope)) {
1078:	break;
1079:	}
1080:
1081:	if ($count >= self::GENERALIZE_AFTER_ITERATION) {
1082:	$bodyScope = $prevScope->generalizeWith($bodyScope);
1083:	}
1084:	$count++;
1085:	} while ($count < self::LOOP_SCOPE_ITERATIONS);
1086:	}
1087:
1088:	$bodyScope = $bodyScope->mergeWith($this->polluteScopeWithAlwaysIterableForeach ? $scope->filterByTruthyValue($arrayComparisonExpr) : $scope);
1089:	$bodyScope = $this->enterForeach($bodyScope, $originalScope, $stmt);
1090:	$finalScopeResult = $this->processStmtNodes($stmt, $stmt->stmts, $bodyScope, $nodeCallback, $context)->filterOutLoopExitPoints();
1091:	$finalScope = $finalScopeResult->getScope();
1092:	foreach ($finalScopeResult->getExitPointsByType(Continue_::class) as $continueExitPoint) {
1093:	$finalScope = $continueExitPoint->getScope()->mergeWith($finalScope);
1094:	}
1095:	foreach ($finalScopeResult->getExitPointsByType(Break_::class) as $breakExitPoint) {
1096:	$finalScope = $breakExitPoint->getScope()->mergeWith($finalScope);
1097:	}
1098:
1099:	$exprType = $scope->getType($stmt->expr);
1100:	$isIterableAtLeastOnce = $exprType->isIterableAtLeastOnce();
1101:	if ($exprType->isIterable()->no() \|\| $isIterableAtLeastOnce->maybe()) {
1102:	$finalScope = $finalScope->mergeWith($scope->filterByTruthyValue(new BooleanOr(
1103:	new BinaryOp\Identical(
1104:	$stmt->expr,
1105:	new Array_([]),
1106:	),
1107:	new FuncCall(new Name\FullyQualified('is_object'), [
1108:	new Arg($stmt->expr),
1109:	]),
1110:	)));
1111:	} elseif ($isIterableAtLeastOnce->no() \|\| $finalScopeResult->isAlwaysTerminating()) {
1112:	$finalScope = $scope;
1113:	} elseif (!$this->polluteScopeWithAlwaysIterableForeach) {
1114:	$finalScope = $scope->processAlwaysIterableForeachScopeWithoutPollute($finalScope);
1115:	// get types from finalScope, but don't create new variables
1116:	}
1117:
1118:	if (!$isIterableAtLeastOnce->no()) {
1119:	$throwPoints = array_merge($throwPoints, $finalScopeResult->getThrowPoints());
1120:	$impurePoints = array_merge($impurePoints, $finalScopeResult->getImpurePoints());
1121:	}
1122:	if (!(new ObjectType(Traversable::class))->isSuperTypeOf($scope->getType($stmt->expr))->no()) {
1123:	$throwPoints[] = ThrowPoint::createImplicit($scope, $stmt->expr);
1124:	}
1125:
1126:	return new StatementResult(
1127:	$finalScope,
1128:	$finalScopeResult->hasYield() \|\| $condResult->hasYield(),
1129:	$isIterableAtLeastOnce->yes() && $finalScopeResult->isAlwaysTerminating(),
1130:	$finalScopeResult->getExitPointsForOuterLoop(),
1131:	$throwPoints,
1132:	$impurePoints,
1133:	);
1134:	} elseif ($stmt instanceof While_) {
1135:	$condResult = $this->processExprNode($stmt, $stmt->cond, $scope, static function (): void {
1136:	}, ExpressionContext::createDeep());
1137:	$bodyScope = $condResult->getTruthyScope();
1138:
1139:	if ($context->isTopLevel()) {
1140:	$count = 0;
1141:	do {
1142:	$prevScope = $bodyScope;
1143:	$bodyScope = $bodyScope->mergeWith($scope);
1144:	$bodyScope = $this->processExprNode($stmt, $stmt->cond, $bodyScope, static function (): void {
1145:	}, ExpressionContext::createDeep())->getTruthyScope();
1146:	$bodyScopeResult = $this->processStmtNodes($stmt, $stmt->stmts, $bodyScope, static function (): void {
1147:	}, $context->enterDeep())->filterOutLoopExitPoints();
1148:	$bodyScope = $bodyScopeResult->getScope();
1149:	foreach ($bodyScopeResult->getExitPointsByType(Continue_::class) as $continueExitPoint) {
1150:	$bodyScope = $bodyScope->mergeWith($continueExitPoint->getScope());
1151:	}
1152:	if ($bodyScope->equals($prevScope)) {
1153:	break;
1154:	}
1155:
1156:	if ($count >= self::GENERALIZE_AFTER_ITERATION) {
1157:	$bodyScope = $prevScope->generalizeWith($bodyScope);
1158:	}
1159:	$count++;
1160:	} while ($count < self::LOOP_SCOPE_ITERATIONS);
1161:	}
1162:
1163:	$bodyScope = $bodyScope->mergeWith($scope);
1164:	$bodyScopeMaybeRan = $bodyScope;
1165:	$bodyScope = $this->processExprNode($stmt, $stmt->cond, $bodyScope, $nodeCallback, ExpressionContext::createDeep())->getTruthyScope();
1166:	$finalScopeResult = $this->processStmtNodes($stmt, $stmt->stmts, $bodyScope, $nodeCallback, $context)->filterOutLoopExitPoints();
1167:	$finalScope = $finalScopeResult->getScope()->filterByFalseyValue($stmt->cond);
1168:
1169:	$condBooleanType = ($this->treatPhpDocTypesAsCertain ? $bodyScopeMaybeRan->getType($stmt->cond) : $bodyScopeMaybeRan->getNativeType($stmt->cond))->toBoolean();
1170:	$alwaysIterates = $condBooleanType->isTrue()->yes() && $context->isTopLevel();
1171:	$neverIterates = $condBooleanType->isFalse()->yes() && $context->isTopLevel();
1172:	if (!$alwaysIterates) {
1173:	foreach ($finalScopeResult->getExitPointsByType(Continue_::class) as $continueExitPoint) {
1174:	$finalScope = $finalScope->mergeWith($continueExitPoint->getScope());
1175:	}
1176:	}
1177:
1178:	$breakExitPoints = $finalScopeResult->getExitPointsByType(Break_::class);
1179:	foreach ($breakExitPoints as $breakExitPoint) {
1180:	$finalScope = $finalScope->mergeWith($breakExitPoint->getScope());
1181:	}
1182:
1183:	$beforeCondBooleanType = ($this->treatPhpDocTypesAsCertain ? $scope->getType($stmt->cond) : $scope->getNativeType($stmt->cond))->toBoolean();
1184:	$isIterableAtLeastOnce = $beforeCondBooleanType->isTrue()->yes();
1185:	$nodeCallback(new BreaklessWhileLoopNode($stmt, $finalScopeResult->getExitPoints()), $bodyScopeMaybeRan);
1186:
1187:	if ($alwaysIterates) {
1188:	$isAlwaysTerminating = count($finalScopeResult->getExitPointsByType(Break_::class)) === 0;
1189:	} elseif ($isIterableAtLeastOnce) {
1190:	$isAlwaysTerminating = $finalScopeResult->isAlwaysTerminating();
1191:	} else {
1192:	$isAlwaysTerminating = false;
1193:	}
1194:	$condScope = $condResult->getFalseyScope();
1195:	if (!$isIterableAtLeastOnce) {
1196:	if (!$this->polluteScopeWithLoopInitialAssignments) {
1197:	$condScope = $condScope->mergeWith($scope);
1198:	}
1199:	$finalScope = $finalScope->mergeWith($condScope);
1200:	}
1201:
1202:	$throwPoints = $overridingThrowPoints ?? $condResult->getThrowPoints();
1203:	$impurePoints = $condResult->getImpurePoints();
1204:	if (!$neverIterates) {
1205:	$throwPoints = array_merge($throwPoints, $finalScopeResult->getThrowPoints());
1206:	$impurePoints = array_merge($impurePoints, $finalScopeResult->getImpurePoints());
1207:	}
1208:
1209:	return new StatementResult(
1210:	$finalScope,
1211:	$finalScopeResult->hasYield() \|\| $condResult->hasYield(),
1212:	$isAlwaysTerminating,
1213:	$finalScopeResult->getExitPointsForOuterLoop(),
1214:	$throwPoints,
1215:	$impurePoints,
1216:	);
1217:	} elseif ($stmt instanceof Do_) {
1218:	$finalScope = null;
1219:	$bodyScope = $scope;
1220:	$count = 0;
1221:	$hasYield = false;
1222:	$throwPoints = [];
1223:	$impurePoints = [];
1224:
1225:	if ($context->isTopLevel()) {
1226:	do {
1227:	$prevScope = $bodyScope;
1228:	$bodyScope = $bodyScope->mergeWith($scope);
1229:	$bodyScopeResult = $this->processStmtNodes($stmt, $stmt->stmts, $bodyScope, static function (): void {
1230:	}, $context->enterDeep())->filterOutLoopExitPoints();
1231:	$alwaysTerminating = $bodyScopeResult->isAlwaysTerminating();
1232:	$bodyScope = $bodyScopeResult->getScope();
1233:	foreach ($bodyScopeResult->getExitPointsByType(Continue_::class) as $continueExitPoint) {
1234:	$bodyScope = $bodyScope->mergeWith($continueExitPoint->getScope());
1235:	}
1236:	$finalScope = $alwaysTerminating ? $finalScope : $bodyScope->mergeWith($finalScope);
1237:	foreach ($bodyScopeResult->getExitPointsByType(Break_::class) as $breakExitPoint) {
1238:	$finalScope = $breakExitPoint->getScope()->mergeWith($finalScope);
1239:	}
1240:	$bodyScope = $this->processExprNode($stmt, $stmt->cond, $bodyScope, static function (): void {
1241:	}, ExpressionContext::createDeep())->getTruthyScope();
1242:	if ($bodyScope->equals($prevScope)) {
1243:	break;
1244:	}
1245:
1246:	if ($count >= self::GENERALIZE_AFTER_ITERATION) {
1247:	$bodyScope = $prevScope->generalizeWith($bodyScope);
1248:	}
1249:	$count++;
1250:	} while ($count < self::LOOP_SCOPE_ITERATIONS);
1251:
1252:	$bodyScope = $bodyScope->mergeWith($scope);
1253:	}
1254:
1255:	$bodyScopeResult = $this->processStmtNodes($stmt, $stmt->stmts, $bodyScope, $nodeCallback, $context)->filterOutLoopExitPoints();
1256:	$bodyScope = $bodyScopeResult->getScope();
1257:	foreach ($bodyScopeResult->getExitPointsByType(Continue_::class) as $continueExitPoint) {
1258:	$bodyScope = $bodyScope->mergeWith($continueExitPoint->getScope());
1259:	}
1260:	$condBooleanType = ($this->treatPhpDocTypesAsCertain ? $bodyScope->getType($stmt->cond) : $bodyScope->getNativeType($stmt->cond))->toBoolean();
1261:	$alwaysIterates = $condBooleanType->isTrue()->yes() && $context->isTopLevel();
1262:
1263:	$nodeCallback(new DoWhileLoopConditionNode($stmt->cond, $bodyScopeResult->getExitPoints()), $bodyScope);
1264:
1265:	if ($alwaysIterates) {
1266:	$alwaysTerminating = count($bodyScopeResult->getExitPointsByType(Break_::class)) === 0;
1267:	} else {
1268:	$alwaysTerminating = $bodyScopeResult->isAlwaysTerminating();
1269:	}
1270:	$finalScope = $alwaysTerminating ? $finalScope : $bodyScope->mergeWith($finalScope);
1271:	if ($finalScope === null) {
1272:	$finalScope = $scope;
1273:	}
1274:	if (!$alwaysTerminating) {
1275:	$condResult = $this->processExprNode($stmt, $stmt->cond, $bodyScope, $nodeCallback, ExpressionContext::createDeep());
1276:	$hasYield = $condResult->hasYield();
1277:	$throwPoints = $condResult->getThrowPoints();
1278:	$impurePoints = $condResult->getImpurePoints();
1279:	$finalScope = $condResult->getFalseyScope();
1280:	} else {
1281:	$this->processExprNode($stmt, $stmt->cond, $bodyScope, $nodeCallback, ExpressionContext::createDeep());
1282:	}
1283:	foreach ($bodyScopeResult->getExitPointsByType(Break_::class) as $breakExitPoint) {
1284:	$finalScope = $breakExitPoint->getScope()->mergeWith($finalScope);
1285:	}
1286:
1287:	return new StatementResult(
1288:	$finalScope,
1289:	$bodyScopeResult->hasYield() \|\| $hasYield,
1290:	$alwaysTerminating,
1291:	$bodyScopeResult->getExitPointsForOuterLoop(),
1292:	array_merge($throwPoints, $bodyScopeResult->getThrowPoints()),
1293:	array_merge($impurePoints, $bodyScopeResult->getImpurePoints()),
1294:	);
1295:	} elseif ($stmt instanceof For_) {
1296:	$initScope = $scope;
1297:	$hasYield = false;
1298:	$throwPoints = [];
1299:	$impurePoints = [];
1300:	foreach ($stmt->init as $initExpr) {
1301:	$initResult = $this->processExprNode($stmt, $initExpr, $initScope, $nodeCallback, ExpressionContext::createTopLevel());
1302:	$initScope = $initResult->getScope();
1303:	$hasYield = $hasYield \|\| $initResult->hasYield();
1304:	$throwPoints = array_merge($throwPoints, $initResult->getThrowPoints());
1305:	$impurePoints = array_merge($impurePoints, $initResult->getImpurePoints());
1306:	}
1307:
1308:	$bodyScope = $initScope;
1309:	$isIterableAtLeastOnce = TrinaryLogic::createYes();
1310:	$lastCondExpr = $stmt->cond[count($stmt->cond) - 1] ?? null;
1311:	foreach ($stmt->cond as $condExpr) {
1312:	$condResult = $this->processExprNode($stmt, $condExpr, $bodyScope, static function (): void {
1313:	}, ExpressionContext::createDeep());
1314:	$initScope = $condResult->getScope();
1315:	$condResultScope = $condResult->getScope();
1316:
1317:	if ($condExpr === $lastCondExpr) {
1318:	$condTruthiness = ($this->treatPhpDocTypesAsCertain ? $condResultScope->getType($condExpr) : $condResultScope->getNativeType($condExpr))->toBoolean();
1319:	$isIterableAtLeastOnce = $isIterableAtLeastOnce->and($condTruthiness->isTrue());
1320:	}
1321:
1322:	$hasYield = $hasYield \|\| $condResult->hasYield();
1323:	$throwPoints = array_merge($throwPoints, $condResult->getThrowPoints());
1324:	$impurePoints = array_merge($impurePoints, $condResult->getImpurePoints());
1325:	$bodyScope = $condResult->getTruthyScope();
1326:	}
1327:
1328:	if ($context->isTopLevel()) {
1329:	$count = 0;
1330:	do {
1331:	$prevScope = $bodyScope;
1332:	$bodyScope = $bodyScope->mergeWith($initScope);
1333:	if ($lastCondExpr !== null) {
1334:	$bodyScope = $this->processExprNode($stmt, $lastCondExpr, $bodyScope, static function (): void {
1335:	}, ExpressionContext::createDeep())->getTruthyScope();
1336:	}
1337:	$bodyScopeResult = $this->processStmtNodes($stmt, $stmt->stmts, $bodyScope, static function (): void {
1338:	}, $context->enterDeep())->filterOutLoopExitPoints();
1339:	$bodyScope = $bodyScopeResult->getScope();
1340:	foreach ($bodyScopeResult->getExitPointsByType(Continue_::class) as $continueExitPoint) {
1341:	$bodyScope = $bodyScope->mergeWith($continueExitPoint->getScope());
1342:	}
1343:	foreach ($stmt->loop as $loopExpr) {
1344:	$exprResult = $this->processExprNode($stmt, $loopExpr, $bodyScope, static function (): void {
1345:	}, ExpressionContext::createTopLevel());
1346:	$bodyScope = $exprResult->getScope();
1347:	$hasYield = $hasYield \|\| $exprResult->hasYield();
1348:	$throwPoints = array_merge($throwPoints, $exprResult->getThrowPoints());
1349:	$impurePoints = array_merge($impurePoints, $exprResult->getImpurePoints());
1350:	}
1351:
1352:	if ($bodyScope->equals($prevScope)) {
1353:	break;
1354:	}
1355:
1356:	if ($count >= self::GENERALIZE_AFTER_ITERATION) {
1357:	$bodyScope = $prevScope->generalizeWith($bodyScope);
1358:	}
1359:	$count++;
1360:	} while ($count < self::LOOP_SCOPE_ITERATIONS);
1361:	}
1362:
1363:	$bodyScope = $bodyScope->mergeWith($initScope);
1364:
1365:	$alwaysIterates = TrinaryLogic::createFromBoolean($context->isTopLevel());
1366:	if ($lastCondExpr !== null) {
1367:	$alwaysIterates = $alwaysIterates->and($bodyScope->getType($lastCondExpr)->toBoolean()->isTrue());
1368:	$bodyScope = $this->processExprNode($stmt, $lastCondExpr, $bodyScope, $nodeCallback, ExpressionContext::createDeep())->getTruthyScope();
1369:	}
1370:
1371:	$finalScopeResult = $this->processStmtNodes($stmt, $stmt->stmts, $bodyScope, $nodeCallback, $context)->filterOutLoopExitPoints();
1372:	$finalScope = $finalScopeResult->getScope();
1373:	foreach ($finalScopeResult->getExitPointsByType(Continue_::class) as $continueExitPoint) {
1374:	$finalScope = $continueExitPoint->getScope()->mergeWith($finalScope);
1375:	}
1376:
1377:	$loopScope = $finalScope;
1378:	foreach ($stmt->loop as $loopExpr) {
1379:	$loopScope = $this->processExprNode($stmt, $loopExpr, $loopScope, $nodeCallback, ExpressionContext::createTopLevel())->getScope();
1380:	}
1381:	$finalScope = $finalScope->generalizeWith($loopScope);
1382:
1383:	if ($lastCondExpr !== null) {
1384:	$finalScope = $finalScope->filterByFalseyValue($lastCondExpr);
1385:	}
1386:
1387:	foreach ($finalScopeResult->getExitPointsByType(Break_::class) as $breakExitPoint) {
1388:	$finalScope = $breakExitPoint->getScope()->mergeWith($finalScope);
1389:	}
1390:
1391:	if ($isIterableAtLeastOnce->no() \|\| $finalScopeResult->isAlwaysTerminating()) {
1392:	if ($this->polluteScopeWithLoopInitialAssignments) {
1393:	$finalScope = $initScope;
1394:	} else {
1395:	$finalScope = $scope;
1396:	}
1397:
1398:	} elseif ($isIterableAtLeastOnce->maybe()) {
1399:	if ($this->polluteScopeWithLoopInitialAssignments) {
1400:	$finalScope = $finalScope->mergeWith($initScope);
1401:	} else {
1402:	$finalScope = $finalScope->mergeWith($scope);
1403:	}
1404:	} else {
1405:	if (!$this->polluteScopeWithLoopInitialAssignments) {
1406:	$finalScope = $finalScope->mergeWith($scope);
1407:	}
1408:	}
1409:
1410:	if ($alwaysIterates->yes()) {
1411:	$isAlwaysTerminating = count($finalScopeResult->getExitPointsByType(Break_::class)) === 0;
1412:	} elseif ($isIterableAtLeastOnce->yes()) {
1413:	$isAlwaysTerminating = $finalScopeResult->isAlwaysTerminating();
1414:	} else {
1415:	$isAlwaysTerminating = false;
1416:	}
1417:
1418:	return new StatementResult(
1419:	$finalScope,
1420:	$finalScopeResult->hasYield() \|\| $hasYield,
1421:	$isAlwaysTerminating,
1422:	$finalScopeResult->getExitPointsForOuterLoop(),
1423:	array_merge($throwPoints, $finalScopeResult->getThrowPoints()),
1424:	array_merge($impurePoints, $finalScopeResult->getImpurePoints()),
1425:	);
1426:	} elseif ($stmt instanceof Switch_) {
1427:	$condResult = $this->processExprNode($stmt, $stmt->cond, $scope, $nodeCallback, ExpressionContext::createDeep());
1428:	$scope = $condResult->getScope();
1429:	$scopeForBranches = $scope;
1430:	$finalScope = null;
1431:	$prevScope = null;
1432:	$hasDefaultCase = false;
1433:	$alwaysTerminating = true;
1434:	$hasYield = $condResult->hasYield();
1435:	$exitPointsForOuterLoop = [];
1436:	$throwPoints = $condResult->getThrowPoints();
1437:	$impurePoints = $condResult->getImpurePoints();
1438:	foreach ($stmt->cases as $caseNode) {
1439:	if ($caseNode->cond !== null) {
1440:	$condExpr = new BinaryOp\Equal($stmt->cond, $caseNode->cond);
1441:	$caseResult = $this->processExprNode($stmt, $caseNode->cond, $scopeForBranches, $nodeCallback, ExpressionContext::createDeep());
1442:	$scopeForBranches = $caseResult->getScope();
1443:	$hasYield = $hasYield \|\| $caseResult->hasYield();
1444:	$throwPoints = array_merge($throwPoints, $caseResult->getThrowPoints());
1445:	$impurePoints = array_merge($impurePoints, $caseResult->getImpurePoints());
1446:	$branchScope = $caseResult->getTruthyScope()->filterByTruthyValue($condExpr);
1447:	} else {
1448:	$hasDefaultCase = true;
1449:	$branchScope = $scopeForBranches;
1450:	}
1451:
1452:	$branchScope = $branchScope->mergeWith($prevScope);
1453:	$branchScopeResult = $this->processStmtNodes($caseNode, $caseNode->stmts, $branchScope, $nodeCallback, $context);
1454:	$branchScope = $branchScopeResult->getScope();
1455:	$branchFinalScopeResult = $branchScopeResult->filterOutLoopExitPoints();
1456:	$hasYield = $hasYield \|\| $branchFinalScopeResult->hasYield();
1457:	foreach ($branchScopeResult->getExitPointsByType(Break_::class) as $breakExitPoint) {
1458:	$alwaysTerminating = false;
1459:	$finalScope = $breakExitPoint->getScope()->mergeWith($finalScope);
1460:	}
1461:	foreach ($branchScopeResult->getExitPointsByType(Continue_::class) as $continueExitPoint) {
1462:	$finalScope = $continueExitPoint->getScope()->mergeWith($finalScope);
1463:	}
1464:	$exitPointsForOuterLoop = array_merge($exitPointsForOuterLoop, $branchFinalScopeResult->getExitPointsForOuterLoop());
1465:	$throwPoints = array_merge($throwPoints, $branchFinalScopeResult->getThrowPoints());
1466:	$impurePoints = array_merge($impurePoints, $branchFinalScopeResult->getImpurePoints());
1467:	if ($branchScopeResult->isAlwaysTerminating()) {
1468:	$alwaysTerminating = $alwaysTerminating && $branchFinalScopeResult->isAlwaysTerminating();
1469:	$prevScope = null;
1470:	if (isset($condExpr)) {
1471:	$scopeForBranches = $scopeForBranches->filterByFalseyValue($condExpr);
1472:	}
1473:	if (!$branchFinalScopeResult->isAlwaysTerminating()) {
1474:	$finalScope = $branchScope->mergeWith($finalScope);
1475:	}
1476:	} else {
1477:	$prevScope = $branchScope;
1478:	}
1479:	}
1480:
1481:	$exhaustive = $scopeForBranches->getType($stmt->cond) instanceof NeverType;
1482:
1483:	if (!$hasDefaultCase && !$exhaustive) {
1484:	$alwaysTerminating = false;
1485:	}
1486:
1487:	if ($prevScope !== null && isset($branchFinalScopeResult)) {
1488:	$finalScope = $prevScope->mergeWith($finalScope);
1489:	$alwaysTerminating = $alwaysTerminating && $branchFinalScopeResult->isAlwaysTerminating();
1490:	}
1491:
1492:	if ((!$hasDefaultCase && !$exhaustive) \|\| $finalScope === null) {
1493:	$finalScope = $scope->mergeWith($finalScope);
1494:	}
1495:
1496:	return new StatementResult($finalScope, $hasYield, $alwaysTerminating, $exitPointsForOuterLoop, $throwPoints, $impurePoints);
1497:	} elseif ($stmt instanceof TryCatch) {
1498:	$branchScopeResult = $this->processStmtNodes($stmt, $stmt->stmts, $scope, $nodeCallback, $context);
1499:	$branchScope = $branchScopeResult->getScope();
1500:	$finalScope = $branchScopeResult->isAlwaysTerminating() ? null : $branchScope;
1501:
1502:	$exitPoints = [];
1503:	$finallyExitPoints = [];
1504:	$alwaysTerminating = $branchScopeResult->isAlwaysTerminating();
1505:	$hasYield = $branchScopeResult->hasYield();
1506:
1507:	if ($stmt->finally !== null) {
1508:	$finallyScope = $branchScope;
1509:	} else {
1510:	$finallyScope = null;
1511:	}
1512:	foreach ($branchScopeResult->getExitPoints() as $exitPoint) {
1513:	$finallyExitPoints[] = $exitPoint;
1514:	if ($exitPoint->getStatement() instanceof Node\Stmt\Expression && $exitPoint->getStatement()->expr instanceof Expr\Throw_) {
1515:	continue;
1516:	}
1517:	if ($finallyScope !== null) {
1518:	$finallyScope = $finallyScope->mergeWith($exitPoint->getScope());
1519:	}
1520:	$exitPoints[] = $exitPoint;
1521:	}
1522:
1523:	$throwPoints = $branchScopeResult->getThrowPoints();
1524:	$impurePoints = $branchScopeResult->getImpurePoints();
1525:	$throwPointsForLater = [];
1526:	$pastCatchTypes = new NeverType();
1527:
1528:	foreach ($stmt->catches as $catchNode) {
1529:	$nodeCallback($catchNode, $scope);
1530:
1531:	$originalCatchTypes = array_map(static fn (Name $name): Type => new ObjectType($name->toString()), $catchNode->types);
1532:	$catchTypes = array_map(static fn (Type $type): Type => TypeCombinator::remove($type, $pastCatchTypes), $originalCatchTypes);
1533:
1534:	$originalCatchType = TypeCombinator::union(...$originalCatchTypes);
1535:	$catchType = TypeCombinator::union(...$catchTypes);
1536:	$pastCatchTypes = TypeCombinator::union($pastCatchTypes, $originalCatchType);
1537:
1538:	$matchingThrowPoints = [];
1539:	$matchingCatchTypes = array_fill_keys(array_keys($originalCatchTypes), false);
1540:
1541:	// throwable matches all
1542:	foreach ($originalCatchTypes as $catchTypeIndex => $catchTypeItem) {
1543:	if (!$catchTypeItem->isSuperTypeOf(new ObjectType(Throwable::class))->yes()) {
1544:	continue;
1545:	}
1546:
1547:	foreach ($throwPoints as $throwPointIndex => $throwPoint) {
1548:	$matchingThrowPoints[$throwPointIndex] = $throwPoint;
1549:	$matchingCatchTypes[$catchTypeIndex] = true;
1550:	}
1551:	}
1552:
1553:	// explicit only
1554:	$onlyExplicitIsThrow = true;
1555:	if (count($matchingThrowPoints) === 0) {
1556:	foreach ($throwPoints as $throwPointIndex => $throwPoint) {
1557:	foreach ($catchTypes as $catchTypeIndex => $catchTypeItem) {
1558:	if ($catchTypeItem->isSuperTypeOf($throwPoint->getType())->no()) {
1559:	continue;
1560:	}
1561:
1562:	$matchingCatchTypes[$catchTypeIndex] = true;
1563:	if (!$throwPoint->isExplicit()) {
1564:	continue;
1565:	}
1566:	$throwNode = $throwPoint->getNode();
1567:	if (
1568:	!$throwNode instanceof Expr\Throw_
1569:	&& !($throwNode instanceof Node\Stmt\Expression && $throwNode->expr instanceof Expr\Throw_)
1570:	) {
1571:	$onlyExplicitIsThrow = false;
1572:	}
1573:	$matchingThrowPoints[$throwPointIndex] = $throwPoint;
1574:	}
1575:	}
1576:	}
1577:
1578:	// implicit only
1579:	if (count($matchingThrowPoints) === 0 \|\| $onlyExplicitIsThrow) {
1580:	foreach ($throwPoints as $throwPointIndex => $throwPoint) {
1581:	if ($throwPoint->isExplicit()) {
1582:	continue;
1583:	}
1584:
1585:	foreach ($catchTypes as $catchTypeIndex => $catchTypeItem) {
1586:	if ($catchTypeItem->isSuperTypeOf($throwPoint->getType())->no()) {
1587:	continue;
1588:	}
1589:
1590:	$matchingThrowPoints[$throwPointIndex] = $throwPoint;
1591:	}
1592:	}
1593:	}
1594:
1595:	// include previously removed throw points
1596:	if (count($matchingThrowPoints) === 0) {
1597:	if ($originalCatchType->isSuperTypeOf(new ObjectType(Throwable::class))->yes()) {
1598:	foreach ($branchScopeResult->getThrowPoints() as $originalThrowPoint) {
1599:	if (!$originalThrowPoint->canContainAnyThrowable()) {
1600:	continue;
1601:	}
1602:
1603:	$matchingThrowPoints[] = $originalThrowPoint;
1604:	$matchingCatchTypes = array_fill_keys(array_keys($originalCatchTypes), true);
1605:	}
1606:	}
1607:	}
1608:
1609:	// emit error
1610:	foreach ($matchingCatchTypes as $catchTypeIndex => $matched) {
1611:	if ($matched) {
1612:	continue;
1613:	}
1614:	$nodeCallback(new CatchWithUnthrownExceptionNode($catchNode, $catchTypes[$catchTypeIndex], $originalCatchTypes[$catchTypeIndex]), $scope);
1615:	}
1616:
1617:	if (count($matchingThrowPoints) === 0) {
1618:	continue;
1619:	}
1620:
1621:	// recompute throw points
1622:	$newThrowPoints = [];
1623:	foreach ($throwPoints as $throwPoint) {
1624:	$newThrowPoint = $throwPoint->subtractCatchType($originalCatchType);
1625:
1626:	if ($newThrowPoint->getType() instanceof NeverType) {
1627:	continue;
1628:	}
1629:
1630:	$newThrowPoints[] = $newThrowPoint;
1631:	}
1632:	$throwPoints = $newThrowPoints;
1633:
1634:	$catchScope = null;
1635:	foreach ($matchingThrowPoints as $matchingThrowPoint) {
1636:	if ($catchScope === null) {
1637:	$catchScope = $matchingThrowPoint->getScope();
1638:	} else {
1639:	$catchScope = $catchScope->mergeWith($matchingThrowPoint->getScope());
1640:	}
1641:	}
1642:
1643:	$variableName = null;
1644:	if ($catchNode->var !== null) {
1645:	if (!is_string($catchNode->var->name)) {
1646:	throw new ShouldNotHappenException();
1647:	}
1648:
1649:	$variableName = $catchNode->var->name;
1650:	}
1651:
1652:	$catchScopeResult = $this->processStmtNodes($catchNode, $catchNode->stmts, $catchScope->enterCatchType($catchType, $variableName), $nodeCallback, $context);
1653:	$catchScopeForFinally = $catchScopeResult->getScope();
1654:
1655:	$finalScope = $catchScopeResult->isAlwaysTerminating() ? $finalScope : $catchScopeResult->getScope()->mergeWith($finalScope);
1656:	$alwaysTerminating = $alwaysTerminating && $catchScopeResult->isAlwaysTerminating();
1657:	$hasYield = $hasYield \|\| $catchScopeResult->hasYield();
1658:	$catchThrowPoints = $catchScopeResult->getThrowPoints();
1659:	$impurePoints = array_merge($impurePoints, $catchScopeResult->getImpurePoints());
1660:	$throwPointsForLater = array_merge($throwPointsForLater, $catchThrowPoints);
1661:
1662:	if ($finallyScope !== null) {
1663:	$finallyScope = $finallyScope->mergeWith($catchScopeForFinally);
1664:	}
1665:	foreach ($catchScopeResult->getExitPoints() as $exitPoint) {
1666:	$finallyExitPoints[] = $exitPoint;
1667:	if ($exitPoint->getStatement() instanceof Node\Stmt\Expression && $exitPoint->getStatement()->expr instanceof Expr\Throw_) {
1668:	continue;
1669:	}
1670:	if ($finallyScope !== null) {
1671:	$finallyScope = $finallyScope->mergeWith($exitPoint->getScope());
1672:	}
1673:	$exitPoints[] = $exitPoint;
1674:	}
1675:
1676:	foreach ($catchThrowPoints as $catchThrowPoint) {
1677:	if ($finallyScope === null) {
1678:	continue;
1679:	}
1680:	$finallyScope = $finallyScope->mergeWith($catchThrowPoint->getScope());
1681:	}
1682:	}
1683:
1684:	if ($finalScope === null) {
1685:	$finalScope = $scope;
1686:	}
1687:
1688:	foreach ($throwPoints as $throwPoint) {
1689:	if ($finallyScope === null) {
1690:	continue;
1691:	}
1692:	$finallyScope = $finallyScope->mergeWith($throwPoint->getScope());
1693:	}
1694:
1695:	if ($finallyScope !== null) {
1696:	$originalFinallyScope = $finallyScope;
1697:	$finallyResult = $this->processStmtNodes($stmt->finally, $stmt->finally->stmts, $finallyScope, $nodeCallback, $context);
1698:	$alwaysTerminating = $alwaysTerminating \|\| $finallyResult->isAlwaysTerminating();
1699:	$hasYield = $hasYield \|\| $finallyResult->hasYield();
1700:	$throwPointsForLater = array_merge($throwPointsForLater, $finallyResult->getThrowPoints());
1701:	$impurePoints = array_merge($impurePoints, $finallyResult->getImpurePoints());
1702:	$finallyScope = $finallyResult->getScope();
1703:	$finalScope = $finallyResult->isAlwaysTerminating() ? $finalScope : $finalScope->processFinallyScope($finallyScope, $originalFinallyScope);
1704:	if (count($finallyResult->getExitPoints()) > 0) {
1705:	$nodeCallback(new FinallyExitPointsNode(
1706:	$finallyResult->getExitPoints(),
1707:	$finallyExitPoints,
1708:	), $scope);
1709:	}
1710:	$exitPoints = array_merge($exitPoints, $finallyResult->getExitPoints());
1711:	}
1712:
1713:	return new StatementResult($finalScope, $hasYield, $alwaysTerminating, $exitPoints, array_merge($throwPoints, $throwPointsForLater), $impurePoints);
1714:	} elseif ($stmt instanceof Unset_) {
1715:	$hasYield = false;
1716:	$throwPoints = [];
1717:	$impurePoints = [];
1718:	foreach ($stmt->vars as $var) {
1719:	$scope = $this->lookForSetAllowedUndefinedExpressions($scope, $var);
1720:	$exprResult = $this->processExprNode($stmt, $var, $scope, $nodeCallback, ExpressionContext::createDeep());
1721:	$scope = $exprResult->getScope();
1722:	$scope = $this->lookForUnsetAllowedUndefinedExpressions($scope, $var);
1723:	$hasYield = $hasYield \|\| $exprResult->hasYield();
1724:	$throwPoints = array_merge($throwPoints, $exprResult->getThrowPoints());
1725:	$impurePoints = array_merge($impurePoints, $exprResult->getImpurePoints());
1726:	if ($var instanceof ArrayDimFetch && $var->dim !== null) {
1727:	$cloningTraverser = new NodeTraverser();
1728:	$cloningTraverser->addVisitor(new CloningVisitor());
1729:
1730:	/** @var Expr $clonedVar */
1731:	[$clonedVar] = $cloningTraverser->traverse([$var->var]);
1732:
1733:	$traverser = new NodeTraverser();
1734:	$traverser->addVisitor(new class () extends NodeVisitorAbstract {
1735:
1736:	public function leaveNode(Node $node): ?ExistingArrayDimFetch
1737:	{
1738:	if (!$node instanceof ArrayDimFetch \|\| $node->dim === null) {
1739:	return null;
1740:	}
1741:
1742:	return new ExistingArrayDimFetch($node->var, $node->dim);
1743:	}
1744:
1745:	});
1746:
1747:	/** @var Expr $clonedVar */
1748:	[$clonedVar] = $traverser->traverse([$clonedVar]);
1749:	$scope = $this->processAssignVar(
1750:	$scope,
1751:	$stmt,
1752:	$clonedVar,
1753:	new UnsetOffsetExpr($var->var, $var->dim),
1754:	static function (Node $node, Scope $scope) use ($nodeCallback): void {
1755:	if (!$node instanceof PropertyAssignNode && !$node instanceof VariableAssignNode) {
1756:	return;
1757:	}
1758:
1759:	$nodeCallback($node, $scope);
1760:	},
1761:	ExpressionContext::createDeep(),
1762:	static fn (MutatingScope $scope): ExpressionResult => new ExpressionResult($scope, false, [], []),
1763:	false,
1764:	)->getScope();
1765:	} elseif ($var instanceof PropertyFetch) {
1766:	$scope = $scope->invalidateExpression($var);
1767:	$impurePoints[] = new ImpurePoint(
1768:	$scope,
1769:	$var,
1770:	'propertyUnset',
1771:	'property unset',
1772:	true,
1773:	);
1774:	} else {
1775:	$scope = $scope->invalidateExpression($var);
1776:	}
1777:
1778:	}
1779:	} elseif ($stmt instanceof Node\Stmt\Use_) {
1780:	$hasYield = false;
1781:	$throwPoints = [];
1782:	$impurePoints = [];
1783:	foreach ($stmt->uses as $use) {
1784:	$nodeCallback($use, $scope);
1785:	}
1786:	} elseif ($stmt instanceof Node\Stmt\Global_) {
1787:	$hasYield = false;
1788:	$throwPoints = [];
1789:	$impurePoints = [
1790:	new ImpurePoint(
1791:	$scope,
1792:	$stmt,
1793:	'global',
1794:	'global variable',
1795:	true,
1796:	),
1797:	];
1798:	$vars = [];
1799:	foreach ($stmt->vars as $var) {
1800:	if (!$var instanceof Variable) {
1801:	throw new ShouldNotHappenException();
1802:	}
1803:	$scope = $this->lookForSetAllowedUndefinedExpressions($scope, $var);
1804:	$varResult = $this->processExprNode($stmt, $var, $scope, $nodeCallback, ExpressionContext::createDeep());
1805:	$impurePoints = array_merge($impurePoints, $varResult->getImpurePoints());
1806:	$scope = $this->lookForUnsetAllowedUndefinedExpressions($scope, $var);
1807:
1808:	if (!is_string($var->name)) {
1809:	continue;
1810:	}
1811:
1812:	$scope = $scope->assignVariable($var->name, new MixedType(), new MixedType(), TrinaryLogic::createYes());
1813:	$vars[] = $var->name;
1814:	}
1815:	$scope = $this->processVarAnnotation($scope, $vars, $stmt);
1816:	} elseif ($stmt instanceof Static_) {
1817:	$hasYield = false;
1818:	$throwPoints = [];
1819:	$impurePoints = [
1820:	new ImpurePoint(
1821:	$scope,
1822:	$stmt,
1823:	'static',
1824:	'static variable',
1825:	true,
1826:	),
1827:	];
1828:
1829:	$vars = [];
1830:	foreach ($stmt->vars as $var) {
1831:	if (!is_string($var->var->name)) {
1832:	throw new ShouldNotHappenException();
1833:	}
1834:
1835:	if ($var->default !== null) {
1836:	$defaultExprResult = $this->processExprNode($stmt, $var->default, $scope, $nodeCallback, ExpressionContext::createDeep());
1837:	$impurePoints = array_merge($impurePoints, $defaultExprResult->getImpurePoints());
1838:	}
1839:
1840:	$scope = $scope->enterExpressionAssign($var->var);
1841:	$varResult = $this->processExprNode($stmt, $var->var, $scope, $nodeCallback, ExpressionContext::createDeep());
1842:	$impurePoints = array_merge($impurePoints, $varResult->getImpurePoints());
1843:	$scope = $scope->exitExpressionAssign($var->var);
1844:
1845:	$scope = $scope->assignVariable($var->var->name, new MixedType(), new MixedType(), TrinaryLogic::createYes());
1846:	$vars[] = $var->var->name;
1847:	}
1848:
1849:	$scope = $this->processVarAnnotation($scope, $vars, $stmt);
1850:	} elseif ($stmt instanceof Node\Stmt\Const_) {
1851:	$hasYield = false;
1852:	$throwPoints = [];
1853:	$impurePoints = [];
1854:	foreach ($stmt->consts as $const) {
1855:	$nodeCallback($const, $scope);
1856:	$constResult = $this->processExprNode($stmt, $const->value, $scope, $nodeCallback, ExpressionContext::createDeep());
1857:	$impurePoints = array_merge($impurePoints, $constResult->getImpurePoints());
1858:	if ($const->namespacedName !== null) {
1859:	$constantName = new Name\FullyQualified($const->namespacedName->toString());
1860:	} else {
1861:	$constantName = new Name\FullyQualified($const->name->toString());
1862:	}
1863:	$scope = $scope->assignExpression(new ConstFetch($constantName), $scope->getType($const->value), $scope->getNativeType($const->value));
1864:	}
1865:	} elseif ($stmt instanceof Node\Stmt\ClassConst) {
1866:	$hasYield = false;
1867:	$throwPoints = [];
1868:	$impurePoints = [];
1869:	$this->processAttributeGroups($stmt, $stmt->attrGroups, $scope, $nodeCallback);
1870:	foreach ($stmt->consts as $const) {
1871:	$nodeCallback($const, $scope);
1872:	$constResult = $this->processExprNode($stmt, $const->value, $scope, $nodeCallback, ExpressionContext::createDeep());
1873:	$impurePoints = array_merge($impurePoints, $constResult->getImpurePoints());
1874:	if ($scope->getClassReflection() === null) {
1875:	throw new ShouldNotHappenException();
1876:	}
1877:	$scope = $scope->assignExpression(
1878:	new Expr\ClassConstFetch(new Name\FullyQualified($scope->getClassReflection()->getName()), $const->name),
1879:	$scope->getType($const->value),
1880:	$scope->getNativeType($const->value),
1881:	);
1882:	}
1883:	} elseif ($stmt instanceof Node\Stmt\EnumCase) {
1884:	$hasYield = false;
1885:	$throwPoints = [];
1886:	$this->processAttributeGroups($stmt, $stmt->attrGroups, $scope, $nodeCallback);
1887:	$impurePoints = [];
1888:	if ($stmt->expr !== null) {
1889:	$exprResult = $this->processExprNode($stmt, $stmt->expr, $scope, $nodeCallback, ExpressionContext::createDeep());
1890:	$impurePoints = $exprResult->getImpurePoints();
1891:	}
1892:	} elseif ($stmt instanceof InlineHTML) {
1893:	$hasYield = false;
1894:	$throwPoints = [];
1895:	$impurePoints = [
1896:	new ImpurePoint($scope, $stmt, 'betweenPhpTags', 'output between PHP opening and closing tags', true),
1897:	];
1898:	} elseif ($stmt instanceof Node\Stmt\Block) {
1899:	$result = $this->processStmtNodes($stmt, $stmt->stmts, $scope, $nodeCallback, $context);
1900:	if ($this->polluteScopeWithBlock) {
1901:	return $result;
1902:	}
1903:
1904:	return new StatementResult(
1905:	$scope->mergeWith($result->getScope()),
1906:	$result->hasYield(),
1907:	$result->isAlwaysTerminating(),
1908:	$result->getExitPoints(),
1909:	$result->getThrowPoints(),
1910:	$result->getImpurePoints(),
1911:	$result->getEndStatements(),
1912:	);
1913:	} elseif ($stmt instanceof Node\Stmt\Nop) {
1914:	$hasYield = false;
1915:	$throwPoints = $overridingThrowPoints ?? [];
1916:	$impurePoints = [];
1917:	} elseif ($stmt instanceof Node\Stmt\GroupUse) {
1918:	$hasYield = false;
1919:	$throwPoints = [];
1920:	foreach ($stmt->uses as $use) {
1921:	$nodeCallback($use, $scope);
1922:	}
1923:	$impurePoints = [];
1924:	} else {
1925:	$hasYield = false;
1926:	$throwPoints = $overridingThrowPoints ?? [];
1927:	$impurePoints = [];
1928:	}
1929:
1930:	return new StatementResult($scope, $hasYield, false, [], $throwPoints, $impurePoints);
1931:	}
1932:
1933:	/**
1934:	* @return ThrowPoint[]\|null
1935:	*/
1936:	private function getOverridingThrowPoints(Node\Stmt $statement, MutatingScope $scope): ?array
1937:	{
1938:	foreach ($statement->getComments() as $comment) {
1939:	if (!$comment instanceof Doc) {
1940:	continue;
1941:	}
1942:
1943:	$function = $scope->getFunction();
1944:	$resolvedPhpDoc = $this->fileTypeMapper->getResolvedPhpDoc(
1945:	$scope->getFile(),
1946:	$scope->isInClass() ? $scope->getClassReflection()->getName() : null,
1947:	$scope->isInTrait() ? $scope->getTraitReflection()->getName() : null,
1948:	$function !== null ? $function->getName() : null,
1949:	$comment->getText(),
1950:	);
1951:
1952:	$throwsTag = $resolvedPhpDoc->getThrowsTag();
1953:	if ($throwsTag !== null) {
1954:	$throwsType = $throwsTag->getType();
1955:	if ($throwsType->isVoid()->yes()) {
1956:	return [];
1957:	}
1958:
1959:	return [ThrowPoint::createExplicit($scope, $throwsType, $statement, false)];
1960:	}
1961:	}
1962:
1963:	return null;
1964:	}
1965:
1966:	private function getCurrentClassReflection(Node\Stmt\ClassLike $stmt, string $className, Scope $scope): ClassReflection
1967:	{
1968:	if (!$this->reflectionProvider->hasClass($className)) {
1969:	return $this->createAstClassReflection($stmt, $className, $scope);
1970:	}
1971:
1972:	$defaultClassReflection = $this->reflectionProvider->getClass($className);
1973:	if ($defaultClassReflection->getFileName() !== $scope->getFile()) {
1974:	return $this->createAstClassReflection($stmt, $className, $scope);
1975:	}
1976:
1977:	$startLine = $defaultClassReflection->getNativeReflection()->getStartLine();
1978:	if ($startLine !== $stmt->getStartLine()) {
1979:	return $this->createAstClassReflection($stmt, $className, $scope);
1980:	}
1981:
1982:	return $defaultClassReflection;
1983:	}
1984:
1985:	private function createAstClassReflection(Node\Stmt\ClassLike $stmt, string $className, Scope $scope): ClassReflection
1986:	{
1987:	$nodeToReflection = new NodeToReflection();
1988:	$betterReflectionClass = $nodeToReflection->__invoke(
1989:	$this->reflector,
1990:	$stmt,
1991:	new LocatedSource(FileReader::read($scope->getFile()), $className, $scope->getFile()),
1992:	$scope->getNamespace() !== null ? new Node\Stmt\Namespace_(new Name($scope->getNamespace())) : null,
1993:	);
1994:	if (!$betterReflectionClass instanceof \PHPStan\BetterReflection\Reflection\ReflectionClass) {
1995:	throw new ShouldNotHappenException();
1996:	}
1997:
1998:	$enumAdapter = base64_decode('UEhQU3RhblxCZXR0ZXJSZWZsZWN0aW9uXFJlZmxlY3Rpb25cQWRhcHRlclxSZWZsZWN0aW9uRW51bQ==', true);
1999:
2000:	return new ClassReflection(
2001:	$this->reflectionProvider,
2002:	$this->initializerExprTypeResolver,
2003:	$this->fileTypeMapper,
2004:	$this->stubPhpDocProvider,
2005:	$this->phpDocInheritanceResolver,
2006:	$this->phpVersion,
2007:	$this->signatureMapProvider,
2008:	$this->classReflectionExtensionRegistryProvider->getRegistry()->getPropertiesClassReflectionExtensions(),
2009:	$this->classReflectionExtensionRegistryProvider->getRegistry()->getMethodsClassReflectionExtensions(),
2010:	$this->classReflectionExtensionRegistryProvider->getRegistry()->getAllowedSubTypesClassReflectionExtensions(),
2011:	$this->classReflectionExtensionRegistryProvider->getRegistry()->getRequireExtendsPropertyClassReflectionExtension(),
2012:	$this->classReflectionExtensionRegistryProvider->getRegistry()->getRequireExtendsMethodsClassReflectionExtension(),
2013:	$betterReflectionClass->getName(),
2014:	$betterReflectionClass instanceof ReflectionEnum && PHP_VERSION_ID >= 80000 ? new $enumAdapter($betterReflectionClass) : new ReflectionClass($betterReflectionClass),
2015:	null,
2016:	null,
2017:	null,
2018:	$this->universalObjectCratesClasses,
2019:	sprintf('%s:%d', $scope->getFile(), $stmt->getStartLine()),
2020:	);
2021:	}
2022:
2023:	private function lookForSetAllowedUndefinedExpressions(MutatingScope $scope, Expr $expr): MutatingScope
2024:	{
2025:	return $this->lookForExpressionCallback($scope, $expr, static fn (MutatingScope $scope, Expr $expr): MutatingScope => $scope->setAllowedUndefinedExpression($expr));
2026:	}
2027:
2028:	private function lookForUnsetAllowedUndefinedExpressions(MutatingScope $scope, Expr $expr): MutatingScope
2029:	{
2030:	return $this->lookForExpressionCallback($scope, $expr, static fn (MutatingScope $scope, Expr $expr): MutatingScope => $scope->unsetAllowedUndefinedExpression($expr));
2031:	}
2032:
2033:	/**
2034:	* @param Closure(MutatingScope $scope, Expr $expr): MutatingScope $callback
2035:	*/
2036:	private function lookForExpressionCallback(MutatingScope $scope, Expr $expr, Closure $callback): MutatingScope
2037:	{
2038:	if (!$expr instanceof ArrayDimFetch \|\| $expr->dim !== null) {
2039:	$scope = $callback($scope, $expr);
2040:	}
2041:
2042:	if ($expr instanceof ArrayDimFetch) {
2043:	$scope = $this->lookForExpressionCallback($scope, $expr->var, $callback);
2044:	} elseif ($expr instanceof PropertyFetch \|\| $expr instanceof Expr\NullsafePropertyFetch) {
2045:	$scope = $this->lookForExpressionCallback($scope, $expr->var, $callback);
2046:	} elseif ($expr instanceof StaticPropertyFetch && $expr->class instanceof Expr) {
2047:	$scope = $this->lookForExpressionCallback($scope, $expr->class, $callback);
2048:	} elseif ($expr instanceof List_) {
2049:	foreach ($expr->items as $item) {
2050:	if ($item === null) {
2051:	continue;
2052:	}
2053:
2054:	$scope = $this->lookForExpressionCallback($scope, $item->value, $callback);
2055:	}
2056:	}
2057:
2058:	return $scope;
2059:	}
2060:
2061:	private function ensureShallowNonNullability(MutatingScope $scope, Scope $originalScope, Expr $exprToSpecify): EnsuredNonNullabilityResult
2062:	{
2063:	$exprType = $scope->getType($exprToSpecify);
2064:	$isNull = $exprType->isNull();
2065:	if ($isNull->yes()) {
2066:	return new EnsuredNonNullabilityResult($scope, []);
2067:	}
2068:
2069:	// keep certainty
2070:	$certainty = TrinaryLogic::createYes();
2071:	$hasExpressionType = $originalScope->hasExpressionType($exprToSpecify);
2072:	if (!$hasExpressionType->no()) {
2073:	$certainty = $hasExpressionType;
2074:	}
2075:
2076:	$exprTypeWithoutNull = TypeCombinator::removeNull($exprType);
2077:	if ($exprType->equals($exprTypeWithoutNull)) {
2078:	$originalExprType = $originalScope->getType($exprToSpecify);
2079:	if (!$originalExprType->equals($exprTypeWithoutNull)) {
2080:	$originalNativeType = $originalScope->getNativeType($exprToSpecify);
2081:
2082:	return new EnsuredNonNullabilityResult($scope, [
2083:	new EnsuredNonNullabilityResultExpression($exprToSpecify, $originalExprType, $originalNativeType, $certainty),
2084:	]);
2085:	}
2086:	return new EnsuredNonNullabilityResult($scope, []);
2087:	}
2088:
2089:	$nativeType = $scope->getNativeType($exprToSpecify);
2090:	$scope = $scope->specifyExpressionType(
2091:	$exprToSpecify,
2092:	$exprTypeWithoutNull,
2093:	TypeCombinator::removeNull($nativeType),
2094:	TrinaryLogic::createYes(),
2095:	);
2096:
2097:	return new EnsuredNonNullabilityResult(
2098:	$scope,
2099:	[
2100:	new EnsuredNonNullabilityResultExpression($exprToSpecify, $exprType, $nativeType, $certainty),
2101:	],
2102:	);
2103:	}
2104:
2105:	private function ensureNonNullability(MutatingScope $scope, Expr $expr): EnsuredNonNullabilityResult
2106:	{
2107:	$specifiedExpressions = [];
2108:	$originalScope = $scope;
2109:	$scope = $this->lookForExpressionCallback($scope, $expr, function ($scope, $expr) use (&$specifiedExpressions, $originalScope) {
2110:	$result = $this->ensureShallowNonNullability($scope, $originalScope, $expr);
2111:	foreach ($result->getSpecifiedExpressions() as $specifiedExpression) {
2112:	$specifiedExpressions[] = $specifiedExpression;
2113:	}
2114:	return $result->getScope();
2115:	});
2116:
2117:	return new EnsuredNonNullabilityResult($scope, $specifiedExpressions);
2118:	}
2119:
2120:	/**
2121:	* @param EnsuredNonNullabilityResultExpression[] $specifiedExpressions
2122:	*/
2123:	private function revertNonNullability(MutatingScope $scope, array $specifiedExpressions): MutatingScope
2124:	{
2125:	foreach ($specifiedExpressions as $specifiedExpressionResult) {
2126:	$scope = $scope->specifyExpressionType(
2127:	$specifiedExpressionResult->getExpression(),
2128:	$specifiedExpressionResult->getOriginalType(),
2129:	$specifiedExpressionResult->getOriginalNativeType(),
2130:	$specifiedExpressionResult->getCertainty(),
2131:	);
2132:	}
2133:
2134:	return $scope;
2135:	}
2136:
2137:	private function findEarlyTerminatingExpr(Expr $expr, Scope $scope): ?Expr
2138:	{
2139:	if (($expr instanceof MethodCall \|\| $expr instanceof Expr\StaticCall) && $expr->name instanceof Node\Identifier) {
2140:	if (array_key_exists($expr->name->toLowerString(), $this->earlyTerminatingMethodNames)) {
2141:	if ($expr instanceof MethodCall) {
2142:	$methodCalledOnType = $scope->getType($expr->var);
2143:	} else {
2144:	if ($expr->class instanceof Name) {
2145:	$methodCalledOnType = $scope->resolveTypeByName($expr->class);
2146:	} else {
2147:	$methodCalledOnType = $scope->getType($expr->class);
2148:	}
2149:	}
2150:
2151:	foreach ($methodCalledOnType->getObjectClassNames() as $referencedClass) {
2152:	if (!$this->reflectionProvider->hasClass($referencedClass)) {
2153:	continue;
2154:	}
2155:
2156:	$classReflection = $this->reflectionProvider->getClass($referencedClass);
2157:	foreach (array_merge([$referencedClass], $classReflection->getParentClassesNames(), $classReflection->getNativeReflection()->getInterfaceNames()) as $className) {
2158:	if (!isset($this->earlyTerminatingMethodCalls[$className])) {
2159:	continue;
2160:	}
2161:
2162:	if (in_array((string) $expr->name, $this->earlyTerminatingMethodCalls[$className], true)) {
2163:	return $expr;
2164:	}
2165:	}
2166:	}
2167:	}
2168:	}
2169:
2170:	if ($expr instanceof FuncCall && $expr->name instanceof Name) {
2171:	if (in_array((string) $expr->name, $this->earlyTerminatingFunctionCalls, true)) {
2172:	return $expr;
2173:	}
2174:	}
2175:
2176:	if ($expr instanceof Expr\Exit_ \|\| $expr instanceof Expr\Throw_) {
2177:	return $expr;
2178:	}
2179:
2180:	$exprType = $scope->getType($expr);
2181:	if ($exprType instanceof NeverType && $exprType->isExplicit()) {
2182:	return $expr;
2183:	}
2184:
2185:	return null;
2186:	}
2187:
2188:	/**
2189:	* @param callable(Node $node, Scope $scope): void $nodeCallback
2190:	*/
2191:	public function processExprNode(Node\Stmt $stmt, Expr $expr, MutatingScope $scope, callable $nodeCallback, ExpressionContext $context): ExpressionResult
2192:	{
2193:	if ($expr instanceof Expr\CallLike && $expr->isFirstClassCallable()) {
2194:	if ($expr instanceof FuncCall) {
2195:	$newExpr = new FunctionCallableNode($expr->name, $expr);
2196:	} elseif ($expr instanceof MethodCall) {
2197:	$newExpr = new MethodCallableNode($expr->var, $expr->name, $expr);
2198:	} elseif ($expr instanceof StaticCall) {
2199:	$newExpr = new StaticMethodCallableNode($expr->class, $expr->name, $expr);
2200:	} elseif ($expr instanceof New_ && !$expr->class instanceof Class_) {
2201:	$newExpr = new InstantiationCallableNode($expr->class, $expr);
2202:	} else {
2203:	throw new ShouldNotHappenException();
2204:	}
2205:
2206:	return $this->processExprNode($stmt, $newExpr, $scope, $nodeCallback, $context);
2207:	}
2208:
2209:	$this->callNodeCallbackWithExpression($nodeCallback, $expr, $scope, $context);
2210:
2211:	if ($expr instanceof Variable) {
2212:	$hasYield = false;
2213:	$throwPoints = [];
2214:	$impurePoints = [];
2215:	if ($expr->name instanceof Expr) {
2216:	return $this->processExprNode($stmt, $expr->name, $scope, $nodeCallback, $context->enterDeep());
2217:	} elseif (in_array($expr->name, Scope::SUPERGLOBAL_VARIABLES, true)) {
2218:	$impurePoints[] = new ImpurePoint($scope, $expr, 'superglobal', 'access to superglobal variable', true);
2219:	}
2220:	} elseif ($expr instanceof Assign \|\| $expr instanceof AssignRef) {
2221:	$result = $this->processAssignVar(
2222:	$scope,
2223:	$stmt,
2224:	$expr->var,
2225:	$expr->expr,
2226:	$nodeCallback,
2227:	$context,
2228:	function (MutatingScope $scope) use ($stmt, $expr, $nodeCallback, $context): ExpressionResult {
2229:	$impurePoints = [];
2230:	if ($expr instanceof AssignRef) {
2231:	$referencedExpr = $expr->expr;
2232:	while ($referencedExpr instanceof ArrayDimFetch) {
2233:	$referencedExpr = $referencedExpr->var;
2234:	}
2235:
2236:	if ($referencedExpr instanceof PropertyFetch \|\| $referencedExpr instanceof StaticPropertyFetch) {
2237:	$impurePoints[] = new ImpurePoint(
2238:	$scope,
2239:	$expr,
2240:	'propertyAssignByRef',
2241:	'property assignment by reference',
2242:	false,
2243:	);
2244:	}
2245:
2246:	$scope = $scope->enterExpressionAssign($expr->expr);
2247:	}
2248:
2249:	if ($expr->var instanceof Variable && is_string($expr->var->name)) {
2250:	$context = $context->enterRightSideAssign(
2251:	$expr->var->name,
2252:	$scope->getType($expr->expr),
2253:	$scope->getNativeType($expr->expr),
2254:	);
2255:	}
2256:
2257:	$result = $this->processExprNode($stmt, $expr->expr, $scope, $nodeCallback, $context->enterDeep());
2258:	$hasYield = $result->hasYield();
2259:	$throwPoints = $result->getThrowPoints();
2260:	$impurePoints = array_merge($impurePoints, $result->getImpurePoints());
2261:	$scope = $result->getScope();
2262:
2263:	if ($expr instanceof AssignRef) {
2264:	$scope = $scope->exitExpressionAssign($expr->expr);
2265:	}
2266:
2267:	return new ExpressionResult($scope, $hasYield, $throwPoints, $impurePoints);
2268:	},
2269:	true,
2270:	);
2271:	$scope = $result->getScope();
2272:	$hasYield = $result->hasYield();
2273:	$throwPoints = $result->getThrowPoints();
2274:	$impurePoints = $result->getImpurePoints();
2275:	$vars = $this->getAssignedVariables($expr->var);
2276:	if (count($vars) > 0) {
2277:	$varChangedScope = false;
2278:	$scope = $this->processVarAnnotation($scope, $vars, $stmt, $varChangedScope);
2279:	if (!$varChangedScope) {
2280:	$scope = $this->processStmtVarAnnotation($scope, $stmt, null, $nodeCallback);
2281:	}
2282:	}
2283:	} elseif ($expr instanceof Expr\AssignOp) {
2284:	$result = $this->processAssignVar(
2285:	$scope,
2286:	$stmt,
2287:	$expr->var,
2288:	$expr,
2289:	$nodeCallback,
2290:	$context,
2291:	function (MutatingScope $scope) use ($stmt, $expr, $nodeCallback, $context): ExpressionResult {
2292:	$originalScope = $scope;
2293:	if ($expr instanceof Expr\AssignOp\Coalesce) {
2294:	$scope = $scope->filterByFalseyValue(
2295:	new BinaryOp\NotIdentical($expr->var, new ConstFetch(new Name('null'))),
2296:	);
2297:	}
2298:
2299:	$result = $this->processExprNode($stmt, $expr->expr, $scope, $nodeCallback, $context->enterDeep());
2300:	if ($expr instanceof Expr\AssignOp\Coalesce) {
2301:	return new ExpressionResult(
2302:	$result->getScope()->mergeWith($originalScope),
2303:	$result->hasYield(),
2304:	$result->getThrowPoints(),
2305:	$result->getImpurePoints(),
2306:	);
2307:	}
2308:
2309:	return $result;
2310:	},
2311:	$expr instanceof Expr\AssignOp\Coalesce,
2312:	);
2313:	$scope = $result->getScope();
2314:	$hasYield = $result->hasYield();
2315:	$throwPoints = $result->getThrowPoints();
2316:	$impurePoints = $result->getImpurePoints();
2317:	if (
2318:	($expr instanceof Expr\AssignOp\Div \|\| $expr instanceof Expr\AssignOp\Mod) &&
2319:	!$scope->getType($expr->expr)->toNumber()->isSuperTypeOf(new ConstantIntegerType(0))->no()
2320:	) {
2321:	$throwPoints[] = ThrowPoint::createExplicit($scope, new ObjectType(DivisionByZeroError::class), $expr, false);
2322:	}
2323:	} elseif ($expr instanceof FuncCall) {
2324:	$parametersAcceptor = null;
2325:	$functionReflection = null;
2326:	$throwPoints = [];
2327:	$impurePoints = [];
2328:	if ($expr->name instanceof Expr) {
2329:	$nameType = $scope->getType($expr->name);
2330:	if (!$nameType->isCallable()->no()) {
2331:	$parametersAcceptor = ParametersAcceptorSelector::selectFromArgs(
2332:	$scope,
2333:	$expr->getArgs(),
2334:	$nameType->getCallableParametersAcceptors($scope),
2335:	null,
2336:	);
2337:	}
2338:
2339:	$nameResult = $this->processExprNode($stmt, $expr->name, $scope, $nodeCallback, $context->enterDeep());
2340:	$scope = $nameResult->getScope();
2341:	$throwPoints = $nameResult->getThrowPoints();
2342:	$impurePoints = $nameResult->getImpurePoints();
2343:	if (
2344:	$nameType->isObject()->yes()
2345:	&& $nameType->isCallable()->yes()
2346:	&& (new ObjectType(Closure::class))->isSuperTypeOf($nameType)->no()
2347:	) {
2348:	$invokeResult = $this->processExprNode(
2349:	$stmt,
2350:	new MethodCall($expr->name, '__invoke', $expr->getArgs(), $expr->getAttributes()),
2351:	$scope,
2352:	static function (): void {
2353:	},
2354:	$context->enterDeep(),
2355:	);
2356:	$throwPoints = array_merge($throwPoints, $invokeResult->getThrowPoints());
2357:	$impurePoints = array_merge($impurePoints, $invokeResult->getImpurePoints());
2358:	} elseif ($parametersAcceptor instanceof CallableParametersAcceptor) {
2359:	$callableThrowPoints = array_map(static fn (SimpleThrowPoint $throwPoint) => $throwPoint->isExplicit() ? ThrowPoint::createExplicit($scope, $throwPoint->getType(), $expr, $throwPoint->canContainAnyThrowable()) : ThrowPoint::createImplicit($scope, $expr), $parametersAcceptor->getThrowPoints());
2360:	if (!$this->implicitThrows) {
2361:	$callableThrowPoints = array_values(array_filter($callableThrowPoints, static fn (ThrowPoint $throwPoint) => $throwPoint->isExplicit()));
2362:	}
2363:	$throwPoints = array_merge($throwPoints, $callableThrowPoints);
2364:	$impurePoints = array_merge($impurePoints, array_map(static fn (SimpleImpurePoint $impurePoint) => new ImpurePoint($scope, $expr, $impurePoint->getIdentifier(), $impurePoint->getDescription(), $impurePoint->isCertain()), $parametersAcceptor->getImpurePoints()));
2365:
2366:	$scope = $this->processImmediatelyCalledCallable($scope, $parametersAcceptor->getInvalidateExpressions(), $parametersAcceptor->getUsedVariables());
2367:	}
2368:	} elseif ($this->reflectionProvider->hasFunction($expr->name, $scope)) {
2369:	$functionReflection = $this->reflectionProvider->getFunction($expr->name, $scope);
2370:	$parametersAcceptor = ParametersAcceptorSelector::selectFromArgs(
2371:	$scope,
2372:	$expr->getArgs(),
2373:	$functionReflection->getVariants(),
2374:	$functionReflection->getNamedArgumentsVariants(),
2375:	);
2376:	$impurePoint = SimpleImpurePoint::createFromVariant($functionReflection, $parametersAcceptor);
2377:	if ($impurePoint !== null) {
2378:	$impurePoints[] = new ImpurePoint($scope, $expr, $impurePoint->getIdentifier(), $impurePoint->getDescription(), $impurePoint->isCertain());
2379:	}
2380:	} else {
2381:	$impurePoints[] = new ImpurePoint(
2382:	$scope,
2383:	$expr,
2384:	'functionCall',
2385:	'call to unknown function',
2386:	false,
2387:	);
2388:	}
2389:
2390:	if ($parametersAcceptor !== null) {
2391:	$expr = ArgumentsNormalizer::reorderFuncArguments($parametersAcceptor, $expr) ?? $expr;
2392:	}
2393:	$result = $this->processArgs($stmt, $functionReflection, null, $parametersAcceptor, $expr, $scope, $nodeCallback, $context);
2394:	$scope = $result->getScope();
2395:	$hasYield = $result->hasYield();
2396:	$throwPoints = array_merge($throwPoints, $result->getThrowPoints());
2397:	$impurePoints = array_merge($impurePoints, $result->getImpurePoints());
2398:
2399:	if ($functionReflection !== null) {
2400:	$functionThrowPoint = $this->getFunctionThrowPoint($functionReflection, $parametersAcceptor, $expr, $scope);
2401:	if ($functionThrowPoint !== null) {
2402:	$throwPoints[] = $functionThrowPoint;
2403:	}
2404:	} else {
2405:	$throwPoints[] = ThrowPoint::createImplicit($scope, $expr);
2406:	}
2407:
2408:	if (
2409:	$functionReflection !== null
2410:	&& in_array($functionReflection->getName(), ['json_encode', 'json_decode'], true)
2411:	) {
2412:	$scope = $scope->invalidateExpression(new FuncCall(new Name('json_last_error'), []))
2413:	->invalidateExpression(new FuncCall(new Name\FullyQualified('json_last_error'), []))
2414:	->invalidateExpression(new FuncCall(new Name('json_last_error_msg'), []))
2415:	->invalidateExpression(new FuncCall(new Name\FullyQualified('json_last_error_msg'), []));
2416:	}
2417:
2418:	if (
2419:	$functionReflection !== null
2420:	&& $functionReflection->getName() === 'file_put_contents'
2421:	&& count($expr->getArgs()) > 0
2422:	) {
2423:	$scope = $scope->invalidateExpression(new FuncCall(new Name('file_get_contents'), [$expr->getArgs()[0]]))
2424:	->invalidateExpression(new FuncCall(new Name\FullyQualified('file_get_contents'), [$expr->getArgs()[0]]));
2425:	}
2426:
2427:	if (
2428:	$functionReflection !== null
2429:	&& in_array($functionReflection->getName(), ['array_pop', 'array_shift'], true)
2430:	&& count($expr->getArgs()) >= 1
2431:	) {
2432:	$arrayArg = $expr->getArgs()[0]->value;
2433:
2434:	$arrayArgType = $scope->getType($arrayArg);
2435:	$arrayArgNativeType = $scope->getNativeType($arrayArg);
2436:
2437:	$isArrayPop = $functionReflection->getName() === 'array_pop';
2438:	$scope = $scope->invalidateExpression($arrayArg)->assignExpression(
2439:	$arrayArg,
2440:	$isArrayPop ? $arrayArgType->popArray() : $arrayArgType->shiftArray(),
2441:	$isArrayPop ? $arrayArgNativeType->popArray() : $arrayArgNativeType->shiftArray(),
2442:	);
2443:	}
2444:
2445:	if (
2446:	$functionReflection !== null
2447:	&& in_array($functionReflection->getName(), ['array_push', 'array_unshift'], true)
2448:	&& count($expr->getArgs()) >= 2
2449:	) {
2450:	$arrayType = $this->getArrayFunctionAppendingType($functionReflection, $scope, $expr);
2451:	$arrayNativeType = $this->getArrayFunctionAppendingType($functionReflection, $scope->doNotTreatPhpDocTypesAsCertain(), $expr);
2452:
2453:	$arrayArg = $expr->getArgs()[0]->value;
2454:	$scope = $scope->invalidateExpression($arrayArg)->assignExpression($arrayArg, $arrayType, $arrayNativeType);
2455:	}
2456:
2457:	if (
2458:	$functionReflection !== null
2459:	&& in_array($functionReflection->getName(), ['fopen', 'file_get_contents'], true)
2460:	) {
2461:	$scope = $scope->assignVariable('http_response_header', TypeCombinator::intersect(new ArrayType(new IntegerType(), new StringType()), new AccessoryArrayListType()), new ArrayType(new IntegerType(), new StringType()), TrinaryLogic::createYes());
2462:	}
2463:
2464:	if (
2465:	$functionReflection !== null
2466:	&& $functionReflection->getName() === 'shuffle'
2467:	) {
2468:	$arrayArg = $expr->getArgs()[0]->value;
2469:	$scope = $scope->assignExpression(
2470:	$arrayArg,
2471:	$scope->getType($arrayArg)->shuffleArray(),
2472:	$scope->getNativeType($arrayArg)->shuffleArray(),
2473:	);
2474:	}
2475:
2476:	if (
2477:	$functionReflection !== null
2478:	&& $functionReflection->getName() === 'array_splice'
2479:	&& count($expr->getArgs()) >= 1
2480:	) {
2481:	$arrayArg = $expr->getArgs()[0]->value;
2482:	$arrayArgType = $scope->getType($arrayArg);
2483:	$valueType = $arrayArgType->getIterableValueType();
2484:	if (count($expr->getArgs()) >= 4) {
2485:	$replacementType = $scope->getType($expr->getArgs()[3]->value)->toArray();
2486:	$valueType = TypeCombinator::union($valueType, $replacementType->getIterableValueType());
2487:	}
2488:	$scope = $scope->invalidateExpression($arrayArg)->assignExpression(
2489:	$arrayArg,
2490:	new ArrayType($arrayArgType->getIterableKeyType(), $valueType),
2491:	new ArrayType($arrayArgType->getIterableKeyType(), $valueType),
2492:	);
2493:	}
2494:
2495:	if (
2496:	$functionReflection !== null
2497:	&& in_array($functionReflection->getName(), ['sort', 'rsort', 'usort'], true)
2498:	&& count($expr->getArgs()) >= 1
2499:	) {
2500:	$arrayArg = $expr->getArgs()[0]->value;
2501:	$scope = $scope->assignExpression(
2502:	$arrayArg,
2503:	$this->getArraySortPreserveListFunctionType($scope->getType($arrayArg)),
2504:	$this->getArraySortPreserveListFunctionType($scope->getNativeType($arrayArg)),
2505:	);
2506:	}
2507:
2508:	if (
2509:	$functionReflection !== null
2510:	&& in_array($functionReflection->getName(), ['natcasesort', 'natsort', 'arsort', 'asort', 'ksort', 'krsort', 'uasort', 'uksort'], true)
2511:	&& count($expr->getArgs()) >= 1
2512:	) {
2513:	$arrayArg = $expr->getArgs()[0]->value;
2514:	$scope = $scope->assignExpression(
2515:	$arrayArg,
2516:	$this->getArraySortDoNotPreserveListFunctionType($scope->getType($arrayArg)),
2517:	$this->getArraySortDoNotPreserveListFunctionType($scope->getNativeType($arrayArg)),
2518:	);
2519:	}
2520:
2521:	if (
2522:	$functionReflection !== null
2523:	&& $functionReflection->getName() === 'extract'
2524:	) {
2525:	$extractedArg = $expr->getArgs()[0]->value;
2526:	$extractedType = $scope->getType($extractedArg);
2527:	$constantArrays = $extractedType->getConstantArrays();
2528:	if (count($constantArrays) > 0) {
2529:	$properties = [];
2530:	$optionalProperties = [];
2531:	$refCount = [];
2532:	foreach ($constantArrays as $constantArray) {
2533:	foreach ($constantArray->getKeyTypes() as $i => $keyType) {
2534:	if ($keyType->isString()->no()) {
2535:	// integers as variable names not allowed
2536:	continue;
2537:	}
2538:	$key = (string) $keyType->getValue();
2539:	$valueType = $constantArray->getValueTypes()[$i];
2540:	$optional = $constantArray->isOptionalKey($i);
2541:	if ($optional) {
2542:	$optionalProperties[] = $key;
2543:	}
2544:	if (isset($properties[$key])) {
2545:	$properties[$key] = TypeCombinator::union($properties[$key], $valueType);
2546:	$refCount[$key]++;
2547:	} else {
2548:	$properties[$key] = $valueType;
2549:	$refCount[$key] = 1;
2550:	}
2551:	}
2552:	}
2553:	foreach ($properties as $name => $type) {
2554:	$optional = in_array($name, $optionalProperties, true) \|\| $refCount[$name] < count($constantArrays);
2555:	$scope = $scope->assignVariable($name, $type, $type, $optional ? TrinaryLogic::createMaybe() : TrinaryLogic::createYes());
2556:	}
2557:	} else {
2558:	$scope = $scope->afterExtractCall();
2559:	}
2560:	}
2561:
2562:	if (
2563:	$functionReflection !== null
2564:	&& in_array($functionReflection->getName(), ['clearstatcache', 'unlink'], true)
2565:	) {
2566:	$scope = $scope->afterClearstatcacheCall();
2567:	}
2568:
2569:	if (
2570:	$functionReflection !== null
2571:	&& str_starts_with($functionReflection->getName(), 'openssl')
2572:	) {
2573:	$scope = $scope->afterOpenSslCall($functionReflection->getName());
2574:	}
2575:
2576:	} elseif ($expr instanceof MethodCall) {
2577:	$originalScope = $scope;
2578:	if (
2579:	($expr->var instanceof Expr\Closure \|\| $expr->var instanceof Expr\ArrowFunction)
2580:	&& $expr->name instanceof Node\Identifier
2581:	&& strtolower($expr->name->name) === 'call'
2582:	&& isset($expr->getArgs()[0])
2583:	) {
2584:	$closureCallScope = $scope->enterClosureCall(
2585:	$scope->getType($expr->getArgs()[0]->value),
2586:	$scope->getNativeType($expr->getArgs()[0]->value),
2587:	);
2588:	}
2589:
2590:	$result = $this->processExprNode($stmt, $expr->var, $closureCallScope ?? $scope, $nodeCallback, $context->enterDeep());
2591:	$hasYield = $result->hasYield();
2592:	$throwPoints = $result->getThrowPoints();
2593:	$impurePoints = $result->getImpurePoints();
2594:	$scope = $result->getScope();
2595:	if (isset($closureCallScope)) {
2596:	$scope = $scope->restoreOriginalScopeAfterClosureBind($originalScope);
2597:	}
2598:	$parametersAcceptor = null;
2599:	$methodReflection = null;
2600:	$calledOnType = $scope->getType($expr->var);
2601:	if ($expr->name instanceof Expr) {
2602:	$methodNameResult = $this->processExprNode($stmt, $expr->name, $scope, $nodeCallback, $context->enterDeep());
2603:	$throwPoints = array_merge($throwPoints, $methodNameResult->getThrowPoints());
2604:	$scope = $methodNameResult->getScope();
2605:	} else {
2606:	$methodName = $expr->name->name;
2607:	$methodReflection = $scope->getMethodReflection($calledOnType, $methodName);
2608:	if ($methodReflection !== null) {
2609:	$parametersAcceptor = ParametersAcceptorSelector::selectFromArgs(
2610:	$scope,
2611:	$expr->getArgs(),
2612:	$methodReflection->getVariants(),
2613:	$methodReflection->getNamedArgumentsVariants(),
2614:	);
2615:
2616:	$methodThrowPoint = $this->getMethodThrowPoint($methodReflection, $parametersAcceptor, $expr, $scope);
2617:	if ($methodThrowPoint !== null) {
2618:	$throwPoints[] = $methodThrowPoint;
2619:	}
2620:	}
2621:	}
2622:
2623:	if ($methodReflection !== null) {
2624:	$impurePoint = SimpleImpurePoint::createFromVariant($methodReflection, $parametersAcceptor);
2625:	if ($impurePoint !== null) {
2626:	$impurePoints[] = new ImpurePoint($scope, $expr, $impurePoint->getIdentifier(), $impurePoint->getDescription(), $impurePoint->isCertain());
2627:	}
2628:	} else {
2629:	$impurePoints[] = new ImpurePoint(
2630:	$scope,
2631:	$expr,
2632:	'methodCall',
2633:	'call to unknown method',
2634:	false,
2635:	);
2636:	}
2637:
2638:	if ($parametersAcceptor !== null) {
2639:	$expr = ArgumentsNormalizer::reorderMethodArguments($parametersAcceptor, $expr) ?? $expr;
2640:	}
2641:
2642:	$result = $this->processArgs(
2643:	$stmt,
2644:	$methodReflection,
2645:	$methodReflection !== null ? $scope->getNakedMethod($calledOnType, $methodReflection->getName()) : null,
2646:	$parametersAcceptor,
2647:	$expr,
2648:	$scope,
2649:	$nodeCallback,
2650:	$context,
2651:	);
2652:	$scope = $result->getScope();
2653:
2654:	if ($methodReflection !== null) {
2655:	$hasSideEffects = $methodReflection->hasSideEffects();
2656:	if ($hasSideEffects->yes() \|\| $methodReflection->getName() === '__construct') {
2657:	$nodeCallback(new InvalidateExprNode($expr->var), $scope);
2658:	$scope = $scope->invalidateExpression($expr->var, true);
2659:	}
2660:	if ($parametersAcceptor !== null && !$methodReflection->isStatic()) {
2661:	$selfOutType = $methodReflection->getSelfOutType();
2662:	if ($selfOutType !== null) {
2663:	$scope = $scope->assignExpression(
2664:	$expr->var,
2665:	TemplateTypeHelper::resolveTemplateTypes(
2666:	$selfOutType,
2667:	$parametersAcceptor->getResolvedTemplateTypeMap(),
2668:	$parametersAcceptor instanceof ExtendedParametersAcceptor ? $parametersAcceptor->getCallSiteVarianceMap() : TemplateTypeVarianceMap::createEmpty(),
2669:	TemplateTypeVariance::createCovariant(),
2670:	),
2671:	$scope->getNativeType($expr->var),
2672:	);
2673:	}
2674:	}
2675:
2676:	if (
2677:	$scope->isInClass()
2678:	&& $scope->getClassReflection()->getName() === $methodReflection->getDeclaringClass()->getName()
2679:	/*&& (
2680:	// should not be allowed but in practice has to be
2681:	$scope->getClassReflection()->isFinal()
2682:	\|\| $methodReflection->isFinal()->yes()
2683:	\|\| $methodReflection->isPrivate()
2684:	)*/
2685:	&& TypeUtils::findThisType($calledOnType) !== null
2686:	) {
2687:	$calledMethodScope = $this->processCalledMethod($methodReflection);
2688:	if ($calledMethodScope !== null) {
2689:	$scope = $scope->mergeInitializedProperties($calledMethodScope);
2690:	}
2691:	}
2692:	} else {
2693:	$throwPoints[] = ThrowPoint::createImplicit($scope, $expr);
2694:	}
2695:	$hasYield = $hasYield \|\| $result->hasYield();
2696:	$throwPoints = array_merge($throwPoints, $result->getThrowPoints());
2697:	$impurePoints = array_merge($impurePoints, $result->getImpurePoints());
2698:	} elseif ($expr instanceof Expr\NullsafeMethodCall) {
2699:	$nonNullabilityResult = $this->ensureShallowNonNullability($scope, $scope, $expr->var);
2700:	$exprResult = $this->processExprNode($stmt, new MethodCall($expr->var, $expr->name, $expr->args, array_merge($expr->getAttributes(), ['virtualNullsafeMethodCall' => true])), $nonNullabilityResult->getScope(), $nodeCallback, $context);
2701:	$scope = $this->revertNonNullability($exprResult->getScope(), $nonNullabilityResult->getSpecifiedExpressions());
2702:
2703:	return new ExpressionResult(
2704:	$scope,
2705:	$exprResult->hasYield(),
2706:	$exprResult->getThrowPoints(),
2707:	$exprResult->getImpurePoints(),
2708:	static fn (): MutatingScope => $scope->filterByTruthyValue($expr),
2709:	static fn (): MutatingScope => $scope->filterByFalseyValue($expr),
2710:	);
2711:	} elseif ($expr instanceof StaticCall) {
2712:	$hasYield = false;
2713:	$throwPoints = [];
2714:	$impurePoints = [];
2715:	if ($expr->class instanceof Expr) {
2716:	$objectClasses = $scope->getType($expr->class)->getObjectClassNames();
2717:	if (count($objectClasses) !== 1) {
2718:	$objectClasses = $scope->getType(new New_($expr->class))->getObjectClassNames();
2719:	}
2720:	if (count($objectClasses) === 1) {
2721:	$objectExprResult = $this->processExprNode($stmt, new StaticCall(new Name($objectClasses[0]), $expr->name, []), $scope, static function (): void {
2722:	}, $context->enterDeep());
2723:	$additionalThrowPoints = $objectExprResult->getThrowPoints();
2724:	} else {
2725:	$additionalThrowPoints = [ThrowPoint::createImplicit($scope, $expr)];
2726:	}
2727:	$classResult = $this->processExprNode($stmt, $expr->class, $scope, $nodeCallback, $context->enterDeep());
2728:	$hasYield = $classResult->hasYield();
2729:	$throwPoints = array_merge($throwPoints, $classResult->getThrowPoints());
2730:	$impurePoints = array_merge($impurePoints, $classResult->getImpurePoints());
2731:	foreach ($additionalThrowPoints as $throwPoint) {
2732:	$throwPoints[] = $throwPoint;
2733:	}
2734:	$scope = $classResult->getScope();
2735:	}
2736:
2737:	$parametersAcceptor = null;
2738:	$methodReflection = null;
2739:	if ($expr->name instanceof Expr) {
2740:	$result = $this->processExprNode($stmt, $expr->name, $scope, $nodeCallback, $context->enterDeep());
2741:	$hasYield = $hasYield \|\| $result->hasYield();
2742:	$throwPoints = array_merge($throwPoints, $result->getThrowPoints());
2743:	$impurePoints = array_merge($impurePoints, $result->getImpurePoints());
2744:	$scope = $result->getScope();
2745:	} elseif ($expr->class instanceof Name) {
2746:	$classType = $scope->resolveTypeByName($expr->class);
2747:	$methodName = $expr->name->name;
2748:	if ($classType->hasMethod($methodName)->yes()) {
2749:	$methodReflection = $classType->getMethod($methodName, $scope);
2750:	$parametersAcceptor = ParametersAcceptorSelector::selectFromArgs(
2751:	$scope,
2752:	$expr->getArgs(),
2753:	$methodReflection->getVariants(),
2754:	$methodReflection->getNamedArgumentsVariants(),
2755:	);
2756:
2757:	$methodThrowPoint = $this->getStaticMethodThrowPoint($methodReflection, $parametersAcceptor, $expr, $scope);
2758:	if ($methodThrowPoint !== null) {
2759:	$throwPoints[] = $methodThrowPoint;
2760:	}
2761:
2762:	$declaringClass = $methodReflection->getDeclaringClass();
2763:	if (
2764:	$declaringClass->getName() === 'Closure'
2765:	&& strtolower($methodName) === 'bind'
2766:	) {
2767:	$thisType = null;
2768:	$nativeThisType = null;
2769:	if (isset($expr->getArgs()[1])) {
2770:	$argType = $scope->getType($expr->getArgs()[1]->value);
2771:	if ($argType->isNull()->yes()) {
2772:	$thisType = null;
2773:	} else {
2774:	$thisType = $argType;
2775:	}
2776:
2777:	$nativeArgType = $scope->getNativeType($expr->getArgs()[1]->value);
2778:	if ($nativeArgType->isNull()->yes()) {
2779:	$nativeThisType = null;
2780:	} else {
2781:	$nativeThisType = $nativeArgType;
2782:	}
2783:	}
2784:	$scopeClasses = ['static'];
2785:	if (isset($expr->getArgs()[2])) {
2786:	$argValue = $expr->getArgs()[2]->value;
2787:	$argValueType = $scope->getType($argValue);
2788:
2789:	$directClassNames = $argValueType->getObjectClassNames();
2790:	if (count($directClassNames) > 0) {
2791:	$scopeClasses = $directClassNames;
2792:	$thisTypes = [];
2793:	foreach ($directClassNames as $directClassName) {
2794:	$thisTypes[] = new ObjectType($directClassName);
2795:	}
2796:	$thisType = TypeCombinator::union(...$thisTypes);
2797:	} else {
2798:	$thisType = $argValueType->getClassStringObjectType();
2799:	$scopeClasses = $thisType->getObjectClassNames();
2800:	}
2801:	}
2802:	$closureBindScope = $scope->enterClosureBind($thisType, $nativeThisType, $scopeClasses);
2803:	}
2804:	} else {
2805:	$throwPoints[] = ThrowPoint::createImplicit($scope, $expr);
2806:	}
2807:	}
2808:
2809:	if ($methodReflection !== null) {
2810:	$impurePoint = SimpleImpurePoint::createFromVariant($methodReflection, $parametersAcceptor);
2811:	if ($impurePoint !== null) {
2812:	$impurePoints[] = new ImpurePoint($scope, $expr, $impurePoint->getIdentifier(), $impurePoint->getDescription(), $impurePoint->isCertain());
2813:	}
2814:	} else {
2815:	$impurePoints[] = new ImpurePoint(
2816:	$scope,
2817:	$expr,
2818:	'methodCall',
2819:	'call to unknown method',
2820:	false,
2821:	);
2822:	}
2823:
2824:	if ($parametersAcceptor !== null) {
2825:	$expr = ArgumentsNormalizer::reorderStaticCallArguments($parametersAcceptor, $expr) ?? $expr;
2826:	}
2827:	$result = $this->processArgs($stmt, $methodReflection, null, $parametersAcceptor, $expr, $scope, $nodeCallback, $context, $closureBindScope ?? null);
2828:	$scope = $result->getScope();
2829:	$scopeFunction = $scope->getFunction();
2830:
2831:	if (
2832:	$methodReflection !== null
2833:	&& !$methodReflection->isStatic()
2834:	&& (
2835:	$methodReflection->hasSideEffects()->yes()
2836:	\|\| $methodReflection->getName() === '__construct'
2837:	)
2838:	&& $scopeFunction instanceof MethodReflection
2839:	&& !$scopeFunction->isStatic()
2840:	&& $scope->isInClass()
2841:	&& (
2842:	$scope->getClassReflection()->getName() === $methodReflection->getDeclaringClass()->getName()
2843:	\|\| $scope->getClassReflection()->isSubclassOf($methodReflection->getDeclaringClass()->getName())
2844:	)
2845:	) {
2846:	$scope = $scope->invalidateExpression(new Variable('this'), true);
2847:	}
2848:
2849:	if (
2850:	$methodReflection !== null
2851:	&& !$methodReflection->isStatic()
2852:	&& $methodReflection->getName() === '__construct'
2853:	&& $scopeFunction instanceof MethodReflection
2854:	&& !$scopeFunction->isStatic()
2855:	&& $scope->isInClass()
2856:	&& $scope->getClassReflection()->isSubclassOf($methodReflection->getDeclaringClass()->getName())
2857:	) {
2858:	$thisType = $scope->getType(new Variable('this'));
2859:	$methodClassReflection = $methodReflection->getDeclaringClass();
2860:	foreach ($methodClassReflection->getNativeReflection()->getProperties(ReflectionProperty::IS_PUBLIC \| ReflectionProperty::IS_PROTECTED) as $property) {
2861:	if (!$property->isPromoted() \|\| $property->getDeclaringClass()->getName() !== $methodClassReflection->getName()) {
2862:	continue;
2863:	}
2864:
2865:	$scope = $scope->assignInitializedProperty($thisType, $property->getName());
2866:	}
2867:	}
2868:
2869:	$hasYield = $hasYield \|\| $result->hasYield();
2870:	$throwPoints = array_merge($throwPoints, $result->getThrowPoints());
2871:	$impurePoints = array_merge($impurePoints, $result->getImpurePoints());
2872:	} elseif ($expr instanceof PropertyFetch) {
2873:	$result = $this->processExprNode($stmt, $expr->var, $scope, $nodeCallback, $context->enterDeep());
2874:	$hasYield = $result->hasYield();
2875:	$throwPoints = $result->getThrowPoints();
2876:	$impurePoints = $result->getImpurePoints();
2877:	$scope = $result->getScope();
2878:	if ($expr->name instanceof Expr) {
2879:	$result = $this->processExprNode($stmt, $expr->name, $scope, $nodeCallback, $context->enterDeep());
2880:	$hasYield = $hasYield \|\| $result->hasYield();
2881:	$throwPoints = array_merge($throwPoints, $result->getThrowPoints());
2882:	$impurePoints = array_merge($impurePoints, $result->getImpurePoints());
2883:	$scope = $result->getScope();
2884:	}
2885:	} elseif ($expr instanceof Expr\NullsafePropertyFetch) {
2886:	$nonNullabilityResult = $this->ensureShallowNonNullability($scope, $scope, $expr->var);
2887:	$exprResult = $this->processExprNode($stmt, new PropertyFetch($expr->var, $expr->name, array_merge($expr->getAttributes(), ['virtualNullsafePropertyFetch' => true])), $nonNullabilityResult->getScope(), $nodeCallback, $context);
2888:	$scope = $this->revertNonNullability($exprResult->getScope(), $nonNullabilityResult->getSpecifiedExpressions());
2889:
2890:	return new ExpressionResult(
2891:	$scope,
2892:	$exprResult->hasYield(),
2893:	$exprResult->getThrowPoints(),
2894:	$exprResult->getImpurePoints(),
2895:	static fn (): MutatingScope => $scope->filterByTruthyValue($expr),
2896:	static fn (): MutatingScope => $scope->filterByFalseyValue($expr),
2897:	);
2898:	} elseif ($expr instanceof StaticPropertyFetch) {
2899:	$hasYield = false;
2900:	$throwPoints = [];
2901:	$impurePoints = [];
2902:	if ($expr->class instanceof Expr) {
2903:	$result = $this->processExprNode($stmt, $expr->class, $scope, $nodeCallback, $context->enterDeep());
2904:	$hasYield = $result->hasYield();
2905:	$throwPoints = $result->getThrowPoints();
2906:	$impurePoints = $result->getImpurePoints();
2907:	$scope = $result->getScope();
2908:	}
2909:	if ($expr->name instanceof Expr) {
2910:	$result = $this->processExprNode($stmt, $expr->name, $scope, $nodeCallback, $context->enterDeep());
2911:	$hasYield = $hasYield \|\| $result->hasYield();
2912:	$throwPoints = array_merge($throwPoints, $result->getThrowPoints());
2913:	$impurePoints = array_merge($impurePoints, $result->getImpurePoints());
2914:	$scope = $result->getScope();
2915:	}
2916:	} elseif ($expr instanceof Expr\Closure) {
2917:	$processClosureResult = $this->processClosureNode($stmt, $expr, $scope, $nodeCallback, $context, null);
2918:
2919:	return new ExpressionResult(
2920:	$processClosureResult->getScope(),
2921:	false,
2922:	[],
2923:	[],
2924:	);
2925:	} elseif ($expr instanceof Expr\ArrowFunction) {
2926:	$result = $this->processArrowFunctionNode($stmt, $expr, $scope, $nodeCallback, null);
2927:	return new ExpressionResult(
2928:	$result->getScope(),
2929:	$result->hasYield(),
2930:	[],
2931:	[],
2932:	);
2933:	} elseif ($expr instanceof ErrorSuppress) {
2934:	$result = $this->processExprNode($stmt, $expr->expr, $scope, $nodeCallback, $context);
2935:	$hasYield = $result->hasYield();
2936:	$throwPoints = $result->getThrowPoints();
2937:	$impurePoints = $result->getImpurePoints();
2938:	$scope = $result->getScope();
2939:	} elseif ($expr instanceof Exit_) {
2940:	$hasYield = false;
2941:	$throwPoints = [];
2942:	$kind = $expr->getAttribute('kind', Exit_::KIND_EXIT);
2943:	$identifier = $kind === Exit_::KIND_DIE ? 'die' : 'exit';
2944:	$impurePoints = [
2945:	new ImpurePoint($scope, $expr, $identifier, $identifier, true),
2946:	];
2947:	if ($expr->expr !== null) {
2948:	$result = $this->processExprNode($stmt, $expr->expr, $scope, $nodeCallback, $context->enterDeep());
2949:	$hasYield = $result->hasYield();
2950:	$throwPoints = $result->getThrowPoints();
2951:	$impurePoints = array_merge($impurePoints, $result->getImpurePoints());
2952:	$scope = $result->getScope();
2953:	}
2954:	} elseif ($expr instanceof Node\Scalar\InterpolatedString) {
2955:	$hasYield = false;
2956:	$throwPoints = [];
2957:	$impurePoints = [];
2958:	foreach ($expr->parts as $part) {
2959:	if (!$part instanceof Expr) {
2960:	continue;
2961:	}
2962:	$result = $this->processExprNode($stmt, $part, $scope, $nodeCallback, $context->enterDeep());
2963:	$hasYield = $hasYield \|\| $result->hasYield();
2964:	$throwPoints = array_merge($throwPoints, $result->getThrowPoints());
2965:	$impurePoints = array_merge($impurePoints, $result->getImpurePoints());
2966:	$scope = $result->getScope();
2967:	}
2968:	} elseif ($expr instanceof ArrayDimFetch) {
2969:	$hasYield = false;
2970:	$throwPoints = [];
2971:	$impurePoints = [];
2972:	if ($expr->dim !== null) {
2973:	$result = $this->processExprNode($stmt, $expr->dim, $scope, $nodeCallback, $context->enterDeep());
2974:	$hasYield = $result->hasYield();
2975:	$throwPoints = $result->getThrowPoints();
2976:	$impurePoints = $result->getImpurePoints();
2977:	$scope = $result->getScope();
2978:	}
2979:
2980:	$result = $this->processExprNode($stmt, $expr->var, $scope, $nodeCallback, $context->enterDeep());
2981:	$hasYield = $hasYield \|\| $result->hasYield();
2982:	$throwPoints = array_merge($throwPoints, $result->getThrowPoints());
2983:	$impurePoints = array_merge($impurePoints, $result->getImpurePoints());
2984:	$scope = $result->getScope();
2985:	} elseif ($expr instanceof Array_) {
2986:	$itemNodes = [];
2987:	$hasYield = false;
2988:	$throwPoints = [];
2989:	$impurePoints = [];
2990:	foreach ($expr->items as $arrayItem) {
2991:	$itemNodes[] = new LiteralArrayItem($scope, $arrayItem);
2992:	$nodeCallback($arrayItem, $scope);
2993:	if ($arrayItem->key !== null) {
2994:	$keyResult = $this->processExprNode($stmt, $arrayItem->key, $scope, $nodeCallback, $context->enterDeep());
2995:	$hasYield = $hasYield \|\| $keyResult->hasYield();
2996:	$throwPoints = array_merge($throwPoints, $keyResult->getThrowPoints());
2997:	$impurePoints = array_merge($impurePoints, $keyResult->getImpurePoints());
2998:	$scope = $keyResult->getScope();
2999:	}
3000:
3001:	$valueResult = $this->processExprNode($stmt, $arrayItem->value, $scope, $nodeCallback, $context->enterDeep());
3002:	$hasYield = $hasYield \|\| $valueResult->hasYield();
3003:	$throwPoints = array_merge($throwPoints, $valueResult->getThrowPoints());
3004:	$impurePoints = array_merge($impurePoints, $valueResult->getImpurePoints());
3005:	$scope = $valueResult->getScope();
3006:	}
3007:	$nodeCallback(new LiteralArrayNode($expr, $itemNodes), $scope);
3008:	} elseif ($expr instanceof BooleanAnd \|\| $expr instanceof BinaryOp\LogicalAnd) {
3009:	$leftResult = $this->processExprNode($stmt, $expr->left, $scope, $nodeCallback, $context->enterDeep());
3010:	$rightResult = $this->processExprNode($stmt, $expr->right, $leftResult->getTruthyScope(), $nodeCallback, $context);
3011:	$rightExprType = $rightResult->getScope()->getType($expr->right);
3012:	if ($rightExprType instanceof NeverType && $rightExprType->isExplicit()) {
3013:	$leftMergedWithRightScope = $leftResult->getFalseyScope();
3014:	} else {
3015:	$leftMergedWithRightScope = $leftResult->getScope()->mergeWith($rightResult->getScope());
3016:	}
3017:
3018:	$this->callNodeCallbackWithExpression($nodeCallback, new BooleanAndNode($expr, $leftResult->getTruthyScope()), $scope, $context);
3019:
3020:	return new ExpressionResult(
3021:	$leftMergedWithRightScope,
3022:	$leftResult->hasYield() \|\| $rightResult->hasYield(),
3023:	array_merge($leftResult->getThrowPoints(), $rightResult->getThrowPoints()),
3024:	array_merge($leftResult->getImpurePoints(), $rightResult->getImpurePoints()),
3025:	static fn (): MutatingScope => $rightResult->getScope()->filterByTruthyValue($expr),
3026:	static fn (): MutatingScope => $leftMergedWithRightScope->filterByFalseyValue($expr),
3027:	);
3028:	} elseif ($expr instanceof BooleanOr \|\| $expr instanceof BinaryOp\LogicalOr) {
3029:	$leftResult = $this->processExprNode($stmt, $expr->left, $scope, $nodeCallback, $context->enterDeep());
3030:	$rightResult = $this->processExprNode($stmt, $expr->right, $leftResult->getFalseyScope(), $nodeCallback, $context);
3031:	$rightExprType = $rightResult->getScope()->getType($expr->right);
3032:	if ($rightExprType instanceof NeverType && $rightExprType->isExplicit()) {
3033:	$leftMergedWithRightScope = $leftResult->getTruthyScope();
3034:	} else {
3035:	$leftMergedWithRightScope = $leftResult->getScope()->mergeWith($rightResult->getScope());
3036:	}
3037:
3038:	$this->callNodeCallbackWithExpression($nodeCallback, new BooleanOrNode($expr, $leftResult->getFalseyScope()), $scope, $context);
3039:
3040:	return new ExpressionResult(
3041:	$leftMergedWithRightScope,
3042:	$leftResult->hasYield() \|\| $rightResult->hasYield(),
3043:	array_merge($leftResult->getThrowPoints(), $rightResult->getThrowPoints()),
3044:	array_merge($leftResult->getImpurePoints(), $rightResult->getImpurePoints()),
3045:	static fn (): MutatingScope => $leftMergedWithRightScope->filterByTruthyValue($expr),
3046:	static fn (): MutatingScope => $rightResult->getScope()->filterByFalseyValue($expr),
3047:	);
3048:	} elseif ($expr instanceof Coalesce) {
3049:	$nonNullabilityResult = $this->ensureNonNullability($scope, $expr->left);
3050:	$condScope = $this->lookForSetAllowedUndefinedExpressions($nonNullabilityResult->getScope(), $expr->left);
3051:	$condResult = $this->processExprNode($stmt, $expr->left, $condScope, $nodeCallback, $context->enterDeep());
3052:	$scope = $this->revertNonNullability($condResult->getScope(), $nonNullabilityResult->getSpecifiedExpressions());
3053:	$scope = $this->lookForUnsetAllowedUndefinedExpressions($scope, $expr->left);
3054:
3055:	$rightScope = $scope->filterByFalseyValue($expr);
3056:	$rightResult = $this->processExprNode($stmt, $expr->right, $rightScope, $nodeCallback, $context->enterDeep());
3057:	$rightExprType = $scope->getType($expr->right);
3058:	if ($rightExprType instanceof NeverType && $rightExprType->isExplicit()) {
3059:	$scope = $scope->filterByTruthyValue(new Expr\Isset_([$expr->left]));
3060:	} else {
3061:	$scope = $scope->filterByTruthyValue(new Expr\Isset_([$expr->left]))->mergeWith($rightResult->getScope());
3062:	}
3063:
3064:	$hasYield = $condResult->hasYield() \|\| $rightResult->hasYield();
3065:	$throwPoints = array_merge($condResult->getThrowPoints(), $rightResult->getThrowPoints());
3066:	$impurePoints = array_merge($condResult->getImpurePoints(), $rightResult->getImpurePoints());
3067:	} elseif ($expr instanceof BinaryOp) {
3068:	$result = $this->processExprNode($stmt, $expr->left, $scope, $nodeCallback, $context->enterDeep());
3069:	$scope = $result->getScope();
3070:	$hasYield = $result->hasYield();
3071:	$throwPoints = $result->getThrowPoints();
3072:	$impurePoints = $result->getImpurePoints();
3073:	$result = $this->processExprNode($stmt, $expr->right, $scope, $nodeCallback, $context->enterDeep());
3074:	if (
3075:	($expr instanceof BinaryOp\Div \|\| $expr instanceof BinaryOp\Mod) &&
3076:	!$scope->getType($expr->right)->toNumber()->isSuperTypeOf(new ConstantIntegerType(0))->no()
3077:	) {
3078:	$throwPoints[] = ThrowPoint::createExplicit($scope, new ObjectType(DivisionByZeroError::class), $expr, false);
3079:	}
3080:	$scope = $result->getScope();
3081:	$hasYield = $hasYield \|\| $result->hasYield();
3082:	$throwPoints = array_merge($throwPoints, $result->getThrowPoints());
3083:	$impurePoints = array_merge($impurePoints, $result->getImpurePoints());
3084:	} elseif ($expr instanceof Expr\Include_) {
3085:	$result = $this->processExprNode($stmt, $expr->expr, $scope, $nodeCallback, $context->enterDeep());
3086:	$throwPoints = $result->getThrowPoints();
3087:	$throwPoints[] = ThrowPoint::createImplicit($scope, $expr);
3088:	$impurePoints = $result->getImpurePoints();
3089:	$impurePoints[] = new ImpurePoint(
3090:	$scope,
3091:	$expr,
3092:	in_array($expr->type, [Expr\Include_::TYPE_INCLUDE, Expr\Include_::TYPE_INCLUDE_ONCE], true) ? 'include' : 'require',
3093:	in_array($expr->type, [Expr\Include_::TYPE_INCLUDE, Expr\Include_::TYPE_INCLUDE_ONCE], true) ? 'include' : 'require',
3094:	true,
3095:	);
3096:	$hasYield = $result->hasYield();
3097:	$scope = $result->getScope()->afterExtractCall();
3098:	} elseif ($expr instanceof Expr\Print_) {
3099:	$result = $this->processExprNode($stmt, $expr->expr, $scope, $nodeCallback, $context->enterDeep());
3100:	$throwPoints = $result->getThrowPoints();
3101:	$impurePoints = $result->getImpurePoints();
3102:	$impurePoints[] = new ImpurePoint($scope, $expr, 'print', 'print', true);
3103:	$hasYield = $result->hasYield();
3104:
3105:	$scope = $result->getScope();
3106:	} elseif ($expr instanceof Cast\String_) {
3107:	$result = $this->processExprNode($stmt, $expr->expr, $scope, $nodeCallback, $context->enterDeep());
3108:	$throwPoints = $result->getThrowPoints();
3109:	$impurePoints = $result->getImpurePoints();
3110:	$hasYield = $result->hasYield();
3111:
3112:	$exprType = $scope->getType($expr->expr);
3113:	$toStringMethod = $scope->getMethodReflection($exprType, '__toString');
3114:	if ($toStringMethod !== null) {
3115:	if (!$toStringMethod->hasSideEffects()->no()) {
3116:	$impurePoints[] = new ImpurePoint(
3117:	$scope,
3118:	$expr,
3119:	'methodCall',
3120:	sprintf('call to method %s::%s()', $toStringMethod->getDeclaringClass()->getDisplayName(), $toStringMethod->getName()),
3121:	$toStringMethod->isPure()->no(),
3122:	);
3123:	}
3124:	}
3125:
3126:	$scope = $result->getScope();
3127:	} elseif (
3128:	$expr instanceof Expr\BitwiseNot
3129:	\|\| $expr instanceof Cast
3130:	\|\| $expr instanceof Expr\Clone_
3131:	\|\| $expr instanceof Expr\UnaryMinus
3132:	\|\| $expr instanceof Expr\UnaryPlus
3133:	) {
3134:	$result = $this->processExprNode($stmt, $expr->expr, $scope, $nodeCallback, $context->enterDeep());
3135:	$throwPoints = $result->getThrowPoints();
3136:	$impurePoints = $result->getImpurePoints();
3137:	$hasYield = $result->hasYield();
3138:
3139:	$scope = $result->getScope();
3140:	} elseif ($expr instanceof Expr\Eval_) {
3141:	$result = $this->processExprNode($stmt, $expr->expr, $scope, $nodeCallback, $context->enterDeep());
3142:	$throwPoints = $result->getThrowPoints();
3143:	$throwPoints[] = ThrowPoint::createImplicit($scope, $expr);
3144:	$impurePoints = $result->getImpurePoints();
3145:	$impurePoints[] = new ImpurePoint($scope, $expr, 'eval', 'eval', true);
3146:	$hasYield = $result->hasYield();
3147:
3148:	$scope = $result->getScope();
3149:	} elseif ($expr instanceof Expr\YieldFrom) {
3150:	$result = $this->processExprNode($stmt, $expr->expr, $scope, $nodeCallback, $context->enterDeep());
3151:	$throwPoints = $result->getThrowPoints();
3152:	$throwPoints[] = ThrowPoint::createImplicit($scope, $expr);
3153:	$impurePoints = $result->getImpurePoints();
3154:	$impurePoints[] = new ImpurePoint(
3155:	$scope,
3156:	$expr,
3157:	'yieldFrom',
3158:	'yield from',
3159:	true,
3160:	);
3161:	$hasYield = true;
3162:
3163:	$scope = $result->getScope();
3164:	} elseif ($expr instanceof BooleanNot) {
3165:	$result = $this->processExprNode($stmt, $expr->expr, $scope, $nodeCallback, $context->enterDeep());
3166:	$scope = $result->getScope();
3167:	$hasYield = $result->hasYield();
3168:	$throwPoints = $result->getThrowPoints();
3169:	$impurePoints = $result->getImpurePoints();
3170:	} elseif ($expr instanceof Expr\ClassConstFetch) {
3171:	if ($expr->class instanceof Expr) {
3172:	$result = $this->processExprNode($stmt, $expr->class, $scope, $nodeCallback, $context->enterDeep());
3173:	$scope = $result->getScope();
3174:	$hasYield = $result->hasYield();
3175:	$throwPoints = $result->getThrowPoints();
3176:	$impurePoints = $result->getImpurePoints();
3177:	} else {
3178:	$hasYield = false;
3179:	$throwPoints = [];
3180:	$impurePoints = [];
3181:	$nodeCallback($expr->class, $scope);
3182:	}
3183:
3184:	if ($expr->name instanceof Expr) {
3185:	$result = $this->processExprNode($stmt, $expr->name, $scope, $nodeCallback, $context->enterDeep());
3186:	$scope = $result->getScope();
3187:	$hasYield = $hasYield \|\| $result->hasYield();
3188:	$throwPoints = array_merge($throwPoints, $result->getThrowPoints());
3189:	$impurePoints = array_merge($impurePoints, $result->getImpurePoints());
3190:	} else {
3191:	$nodeCallback($expr->name, $scope);
3192:	}
3193:	} elseif ($expr instanceof Expr\Empty_) {
3194:	$nonNullabilityResult = $this->ensureNonNullability($scope, $expr->expr);
3195:	$scope = $this->lookForSetAllowedUndefinedExpressions($nonNullabilityResult->getScope(), $expr->expr);
3196:	$result = $this->processExprNode($stmt, $expr->expr, $scope, $nodeCallback, $context->enterDeep());
3197:	$scope = $result->getScope();
3198:	$hasYield = $result->hasYield();
3199:	$throwPoints = $result->getThrowPoints();
3200:	$impurePoints = $result->getImpurePoints();
3201:	$scope = $this->revertNonNullability($scope, $nonNullabilityResult->getSpecifiedExpressions());
3202:	$scope = $this->lookForUnsetAllowedUndefinedExpressions($scope, $expr->expr);
3203:	} elseif ($expr instanceof Expr\Isset_) {
3204:	$hasYield = false;
3205:	$throwPoints = [];
3206:	$impurePoints = [];
3207:	$nonNullabilityResults = [];
3208:	foreach ($expr->vars as $var) {
3209:	$nonNullabilityResult = $this->ensureNonNullability($scope, $var);
3210:	$scope = $this->lookForSetAllowedUndefinedExpressions($nonNullabilityResult->getScope(), $var);
3211:	$result = $this->processExprNode($stmt, $var, $scope, $nodeCallback, $context->enterDeep());
3212:	$scope = $result->getScope();
3213:	$hasYield = $hasYield \|\| $result->hasYield();
3214:	$throwPoints = array_merge($throwPoints, $result->getThrowPoints());
3215:	$impurePoints = array_merge($impurePoints, $result->getImpurePoints());
3216:	$nonNullabilityResults[] = $nonNullabilityResult;
3217:	}
3218:	foreach (array_reverse($expr->vars) as $var) {
3219:	$scope = $this->lookForUnsetAllowedUndefinedExpressions($scope, $var);
3220:	}
3221:	foreach (array_reverse($nonNullabilityResults) as $nonNullabilityResult) {
3222:	$scope = $this->revertNonNullability($scope, $nonNullabilityResult->getSpecifiedExpressions());
3223:	}
3224:	} elseif ($expr instanceof Instanceof_) {
3225:	$result = $this->processExprNode($stmt, $expr->expr, $scope, $nodeCallback, $context->enterDeep());
3226:	$scope = $result->getScope();
3227:	$hasYield = $result->hasYield();
3228:	$throwPoints = $result->getThrowPoints();
3229:	$impurePoints = $result->getImpurePoints();
3230:	if ($expr->class instanceof Expr) {
3231:	$result = $this->processExprNode($stmt, $expr->class, $scope, $nodeCallback, $context->enterDeep());
3232:	$scope = $result->getScope();
3233:	$hasYield = $hasYield \|\| $result->hasYield();
3234:	$throwPoints = array_merge($throwPoints, $result->getThrowPoints());
3235:	$impurePoints = array_merge($impurePoints, $result->getImpurePoints());
3236:	}
3237:	} elseif ($expr instanceof List_) {
3238:	// only in assign and foreach, processed elsewhere
3239:	return new ExpressionResult($scope, false, [], []);
3240:	} elseif ($expr instanceof New_) {
3241:	$parametersAcceptor = null;
3242:	$constructorReflection = null;
3243:	$hasYield = false;
3244:	$throwPoints = [];
3245:	$impurePoints = [];
3246:	$className = null;
3247:	if ($expr->class instanceof Expr \|\| $expr->class instanceof Name) {
3248:	if ($expr->class instanceof Expr) {
3249:	$objectClasses = $scope->getType($expr)->getObjectClassNames();
3250:	if (count($objectClasses) === 1) {
3251:	$objectExprResult = $this->processExprNode($stmt, new New_(new Name($objectClasses[0])), $scope, static function (): void {
3252:	}, $context->enterDeep());
3253:	$className = $objectClasses[0];
3254:	$additionalThrowPoints = $objectExprResult->getThrowPoints();
3255:	} else {
3256:	$additionalThrowPoints = [ThrowPoint::createImplicit($scope, $expr)];
3257:	}
3258:
3259:	$result = $this->processExprNode($stmt, $expr->class, $scope, $nodeCallback, $context->enterDeep());
3260:	$scope = $result->getScope();
3261:	$hasYield = $result->hasYield();
3262:	$throwPoints = $result->getThrowPoints();
3263:	$impurePoints = $result->getImpurePoints();
3264:	foreach ($additionalThrowPoints as $throwPoint) {
3265:	$throwPoints[] = $throwPoint;
3266:	}
3267:	} else {
3268:	$className = $scope->resolveName($expr->class);
3269:	}
3270:
3271:	$classReflection = null;
3272:	if ($className !== null && $this->reflectionProvider->hasClass($className)) {
3273:	$classReflection = $this->reflectionProvider->getClass($className);
3274:	if ($classReflection->hasConstructor()) {
3275:	$constructorReflection = $classReflection->getConstructor();
3276:	$parametersAcceptor = ParametersAcceptorSelector::selectFromArgs(
3277:	$scope,
3278:	$expr->getArgs(),
3279:	$constructorReflection->getVariants(),
3280:	$constructorReflection->getNamedArgumentsVariants(),
3281:	);
3282:	$constructorThrowPoint = $this->getConstructorThrowPoint($constructorReflection, $parametersAcceptor, $classReflection, $expr, new Name\FullyQualified($className), $expr->getArgs(), $scope);
3283:	if ($constructorThrowPoint !== null) {
3284:	$throwPoints[] = $constructorThrowPoint;
3285:	}
3286:	}
3287:	} else {
3288:	$throwPoints[] = ThrowPoint::createImplicit($scope, $expr);
3289:	}
3290:
3291:	if ($constructorReflection !== null) {
3292:	if (!$constructorReflection->hasSideEffects()->no()) {
3293:	$certain = $constructorReflection->isPure()->no();
3294:	$impurePoints[] = new ImpurePoint(
3295:	$scope,
3296:	$expr,
3297:	'new',
3298:	sprintf('instantiation of class %s', $constructorReflection->getDeclaringClass()->getDisplayName()),
3299:	$certain,
3300:	);
3301:	}
3302:	} elseif ($classReflection === null) {
3303:	$impurePoints[] = new ImpurePoint(
3304:	$scope,
3305:	$expr,
3306:	'new',
3307:	'instantiation of unknown class',
3308:	false,
3309:	);
3310:	}
3311:
3312:	if ($parametersAcceptor !== null) {
3313:	$expr = ArgumentsNormalizer::reorderNewArguments($parametersAcceptor, $expr) ?? $expr;
3314:	}
3315:
3316:	} else {
3317:	$classReflection = $this->reflectionProvider->getAnonymousClassReflection($expr->class, $scope); // populates $expr->class->name
3318:	$constructorResult = null;
3319:	$this->processStmtNode($expr->class, $scope, static function (Node $node, Scope $scope) use ($nodeCallback, $classReflection, &$constructorResult): void {
3320:	$nodeCallback($node, $scope);
3321:	if (!$node instanceof MethodReturnStatementsNode) {
3322:	return;
3323:	}
3324:	if ($constructorResult !== null) {
3325:	return;
3326:	}
3327:	$currentClassReflection = $node->getClassReflection();
3328:	if ($currentClassReflection->getName() !== $classReflection->getName()) {
3329:	return;
3330:	}
3331:	if (!$currentClassReflection->hasConstructor()) {
3332:	return;
3333:	}
3334:	if ($currentClassReflection->getConstructor()->getName() !== $node->getMethodReflection()->getName()) {
3335:	return;
3336:	}
3337:	$constructorResult = $node;
3338:	}, StatementContext::createTopLevel());
3339:	if ($constructorResult !== null) {
3340:	$throwPoints = array_merge($throwPoints, $constructorResult->getStatementResult()->getThrowPoints());
3341:	$impurePoints = array_merge($impurePoints, $constructorResult->getImpurePoints());
3342:	}
3343:	if ($classReflection->hasConstructor()) {
3344:	$constructorReflection = $classReflection->getConstructor();
3345:	$parametersAcceptor = ParametersAcceptorSelector::selectFromArgs(
3346:	$scope,
3347:	$expr->getArgs(),
3348:	$constructorReflection->getVariants(),
3349:	$constructorReflection->getNamedArgumentsVariants(),
3350:	);
3351:	}
3352:	}
3353:
3354:	$result = $this->processArgs($stmt, $constructorReflection, null, $parametersAcceptor, $expr, $scope, $nodeCallback, $context);
3355:	$scope = $result->getScope();
3356:	$hasYield = $hasYield \|\| $result->hasYield();
3357:	$throwPoints = array_merge($throwPoints, $result->getThrowPoints());
3358:	$impurePoints = array_merge($impurePoints, $result->getImpurePoints());
3359:	} elseif (
3360:	$expr instanceof Expr\PreInc
3361:	\|\| $expr instanceof Expr\PostInc
3362:	\|\| $expr instanceof Expr\PreDec
3363:	\|\| $expr instanceof Expr\PostDec
3364:	) {
3365:	$result = $this->processExprNode($stmt, $expr->var, $scope, $nodeCallback, $context->enterDeep());
3366:	$scope = $result->getScope();
3367:	$hasYield = $result->hasYield();
3368:	$throwPoints = $result->getThrowPoints();
3369:	$impurePoints = $result->getImpurePoints();
3370:
3371:	$newExpr = $expr;
3372:	if ($expr instanceof Expr\PostInc) {
3373:	$newExpr = new Expr\PreInc($expr->var);
3374:	} elseif ($expr instanceof Expr\PostDec) {
3375:	$newExpr = new Expr\PreDec($expr->var);
3376:	}
3377:
3378:	$scope = $this->processAssignVar(
3379:	$scope,
3380:	$stmt,
3381:	$expr->var,
3382:	$newExpr,
3383:	static function (Node $node, Scope $scope) use ($nodeCallback): void {
3384:	if (!$node instanceof PropertyAssignNode && !$node instanceof VariableAssignNode) {
3385:	return;
3386:	}
3387:
3388:	$nodeCallback($node, $scope);
3389:	},
3390:	$context,
3391:	static fn (MutatingScope $scope): ExpressionResult => new ExpressionResult($scope, false, [], []),
3392:	false,
3393:	)->getScope();
3394:	} elseif ($expr instanceof Ternary) {
3395:	$ternaryCondResult = $this->processExprNode($stmt, $expr->cond, $scope, $nodeCallback, $context->enterDeep());
3396:	$throwPoints = $ternaryCondResult->getThrowPoints();
3397:	$impurePoints = $ternaryCondResult->getImpurePoints();
3398:	$ifTrueScope = $ternaryCondResult->getTruthyScope();
3399:	$ifFalseScope = $ternaryCondResult->getFalseyScope();
3400:	$ifTrueType = null;
3401:	if ($expr->if !== null) {
3402:	$ifResult = $this->processExprNode($stmt, $expr->if, $ifTrueScope, $nodeCallback, $context);
3403:	$throwPoints = array_merge($throwPoints, $ifResult->getThrowPoints());
3404:	$impurePoints = array_merge($impurePoints, $ifResult->getImpurePoints());
3405:	$ifTrueScope = $ifResult->getScope();
3406:	$ifTrueType = $ifTrueScope->getType($expr->if);
3407:	}
3408:
3409:	$elseResult = $this->processExprNode($stmt, $expr->else, $ifFalseScope, $nodeCallback, $context);
3410:	$throwPoints = array_merge($throwPoints, $elseResult->getThrowPoints());
3411:	$impurePoints = array_merge($impurePoints, $elseResult->getImpurePoints());
3412:	$ifFalseScope = $elseResult->getScope();
3413:
3414:	$condType = $scope->getType($expr->cond);
3415:	if ($condType->isTrue()->yes()) {
3416:	$finalScope = $ifTrueScope;
3417:	} elseif ($condType->isFalse()->yes()) {
3418:	$finalScope = $ifFalseScope;
3419:	} else {
3420:	if ($ifTrueType instanceof NeverType && $ifTrueType->isExplicit()) {
3421:	$finalScope = $ifFalseScope;
3422:	} else {
3423:	$ifFalseType = $ifFalseScope->getType($expr->else);
3424:
3425:	if ($ifFalseType instanceof NeverType && $ifFalseType->isExplicit()) {
3426:	$finalScope = $ifTrueScope;
3427:	} else {
3428:	$finalScope = $ifTrueScope->mergeWith($ifFalseScope);
3429:	}
3430:	}
3431:	}
3432:
3433:	return new ExpressionResult(
3434:	$finalScope,
3435:	$ternaryCondResult->hasYield(),
3436:	$throwPoints,
3437:	$impurePoints,
3438:	static fn (): MutatingScope => $finalScope->filterByTruthyValue($expr),
3439:	static fn (): MutatingScope => $finalScope->filterByFalseyValue($expr),
3440:	);
3441:
3442:	} elseif ($expr instanceof Expr\Yield_) {
3443:	$throwPoints = [
3444:	ThrowPoint::createImplicit($scope, $expr),
3445:	];
3446:	$impurePoints = [
3447:	new ImpurePoint(
3448:	$scope,
3449:	$expr,
3450:	'yield',
3451:	'yield',
3452:	true,
3453:	),
3454:	];
3455:	if ($expr->key !== null) {
3456:	$keyResult = $this->processExprNode($stmt, $expr->key, $scope, $nodeCallback, $context->enterDeep());
3457:	$scope = $keyResult->getScope();
3458:	$throwPoints = $keyResult->getThrowPoints();
3459:	$impurePoints = array_merge($impurePoints, $keyResult->getImpurePoints());
3460:	}
3461:	if ($expr->value !== null) {
3462:	$valueResult = $this->processExprNode($stmt, $expr->value, $scope, $nodeCallback, $context->enterDeep());
3463:	$scope = $valueResult->getScope();
3464:	$throwPoints = array_merge($throwPoints, $valueResult->getThrowPoints());
3465:	$impurePoints = array_merge($impurePoints, $valueResult->getImpurePoints());
3466:	}
3467:	$hasYield = true;
3468:	} elseif ($expr instanceof Expr\Match_) {
3469:	$deepContext = $context->enterDeep();
3470:	$condType = $scope->getType($expr->cond);
3471:	$condResult = $this->processExprNode($stmt, $expr->cond, $scope, $nodeCallback, $deepContext);
3472:	$scope = $condResult->getScope();
3473:	$hasYield = $condResult->hasYield();
3474:	$throwPoints = $condResult->getThrowPoints();
3475:	$impurePoints = $condResult->getImpurePoints();
3476:	$matchScope = $scope->enterMatch($expr);
3477:	$armNodes = [];
3478:	$hasDefaultCond = false;
3479:	$hasAlwaysTrueCond = false;
3480:	$arms = $expr->arms;
3481:	if ($condType->isEnum()->yes()) {
3482:	// enum match analysis would work even without this if branch
3483:	// but would be much slower
3484:	// this avoids using ObjectType::$subtractedType which is slow for huge enums
3485:	// because of repeated union type normalization
3486:	$enumCases = $condType->getEnumCases();
3487:	if (count($enumCases) > 0) {
3488:	$indexedEnumCases = [];
3489:	foreach ($enumCases as $enumCase) {
3490:	$indexedEnumCases[strtolower($enumCase->getClassName())][$enumCase->getEnumCaseName()] = $enumCase;
3491:	}
3492:	$unusedIndexedEnumCases = $indexedEnumCases;
3493:	foreach ($arms as $i => $arm) {
3494:	if ($arm->conds === null) {
3495:	continue;
3496:	}
3497:
3498:	$condNodes = [];
3499:	$conditionCases = [];
3500:	foreach ($arm->conds as $cond) {
3501:	if (!$cond instanceof Expr\ClassConstFetch) {
3502:	continue 2;
3503:	}
3504:	if (!$cond->class instanceof Name) {
3505:	continue 2;
3506:	}
3507:	if (!$cond->name instanceof Node\Identifier) {
3508:	continue 2;
3509:	}
3510:	$fetchedClassName = $scope->resolveName($cond->class);
3511:	$loweredFetchedClassName = strtolower($fetchedClassName);
3512:	if (!array_key_exists($loweredFetchedClassName, $indexedEnumCases)) {
3513:	continue 2;
3514:	}
3515:
3516:	if (!array_key_exists($loweredFetchedClassName, $unusedIndexedEnumCases)) {
3517:	throw new ShouldNotHappenException();
3518:	}
3519:
3520:	$caseName = $cond->name->toString();
3521:	if (!array_key_exists($caseName, $indexedEnumCases[$loweredFetchedClassName])) {
3522:	continue 2;
3523:	}
3524:
3525:	$enumCase = $indexedEnumCases[$loweredFetchedClassName][$caseName];
3526:	$conditionCases[] = $enumCase;
3527:	$armConditionScope = $matchScope;
3528:	if (!array_key_exists($caseName, $unusedIndexedEnumCases[$loweredFetchedClassName])) {
3529:	// force "always false"
3530:	$armConditionScope = $armConditionScope->removeTypeFromExpression(
3531:	$expr->cond,
3532:	$enumCase,
3533:	);
3534:	} else {
3535:	$unusedCasesCount = 0;
3536:	foreach ($unusedIndexedEnumCases as $cases) {
3537:	$unusedCasesCount += count($cases);
3538:	}
3539:	if ($unusedCasesCount === 1) {
3540:	$hasAlwaysTrueCond = true;
3541:
3542:	// force "always true"
3543:	$armConditionScope = $armConditionScope->addTypeToExpression(
3544:	$expr->cond,
3545:	$enumCase,
3546:	);
3547:	}
3548:	}
3549:
3550:	$this->processExprNode($stmt, $cond, $armConditionScope, $nodeCallback, $deepContext);
3551:
3552:	$condNodes[] = new MatchExpressionArmCondition(
3553:	$cond,
3554:	$armConditionScope,
3555:	$cond->getStartLine(),
3556:	);
3557:
3558:	unset($unusedIndexedEnumCases[$loweredFetchedClassName][$caseName]);
3559:	}
3560:
3561:	$conditionCasesCount = count($conditionCases);
3562:	if ($conditionCasesCount === 0) {
3563:	throw new ShouldNotHappenException();
3564:	} elseif ($conditionCasesCount === 1) {
3565:	$conditionCaseType = $conditionCases[0];
3566:	} else {
3567:	$conditionCaseType = new UnionType($conditionCases);
3568:	}
3569:
3570:	$matchArmBodyScope = $matchScope->addTypeToExpression(
3571:	$expr->cond,
3572:	$conditionCaseType,
3573:	);
3574:	$matchArmBody = new MatchExpressionArmBody($matchArmBodyScope, $arm->body);
3575:	$armNodes[$i] = new MatchExpressionArm($matchArmBody, $condNodes, $arm->getStartLine());
3576:
3577:	$armResult = $this->processExprNode(
3578:	$stmt,
3579:	$arm->body,
3580:	$matchArmBodyScope,
3581:	$nodeCallback,
3582:	ExpressionContext::createTopLevel(),
3583:	);
3584:	$armScope = $armResult->getScope();
3585:	$scope = $scope->mergeWith($armScope);
3586:	$hasYield = $hasYield \|\| $armResult->hasYield();
3587:	$throwPoints = array_merge($throwPoints, $armResult->getThrowPoints());
3588:	$impurePoints = array_merge($impurePoints, $armResult->getImpurePoints());
3589:
3590:	unset($arms[$i]);
3591:	}
3592:
3593:	$remainingCases = [];
3594:	foreach ($unusedIndexedEnumCases as $cases) {
3595:	foreach ($cases as $case) {
3596:	$remainingCases[] = $case;
3597:	}
3598:	}
3599:
3600:	$remainingCasesCount = count($remainingCases);
3601:	if ($remainingCasesCount === 0) {
3602:	$remainingType = new NeverType();
3603:	} elseif ($remainingCasesCount === 1) {
3604:	$remainingType = $remainingCases[0];
3605:	} else {
3606:	$remainingType = new UnionType($remainingCases);
3607:	}
3608:
3609:	$matchScope = $matchScope->addTypeToExpression($expr->cond, $remainingType);
3610:	}
3611:	}
3612:	foreach ($arms as $i => $arm) {
3613:	if ($arm->conds === null) {
3614:	$hasDefaultCond = true;
3615:	$matchArmBody = new MatchExpressionArmBody($matchScope, $arm->body);
3616:	$armNodes[$i] = new MatchExpressionArm($matchArmBody, [], $arm->getStartLine());
3617:	$armResult = $this->processExprNode($stmt, $arm->body, $matchScope, $nodeCallback, ExpressionContext::createTopLevel());
3618:	$matchScope = $armResult->getScope();
3619:	$hasYield = $hasYield \|\| $armResult->hasYield();
3620:	$throwPoints = array_merge($throwPoints, $armResult->getThrowPoints());
3621:	$impurePoints = array_merge($impurePoints, $armResult->getImpurePoints());
3622:	$scope = $scope->mergeWith($matchScope);
3623:	continue;
3624:	}
3625:
3626:	if (count($arm->conds) === 0) {
3627:	throw new ShouldNotHappenException();
3628:	}
3629:
3630:	$filteringExprs = [];
3631:	$armCondScope = $matchScope;
3632:	$condNodes = [];
3633:	foreach ($arm->conds as $armCond) {
3634:	$condNodes[] = new MatchExpressionArmCondition($armCond, $armCondScope, $armCond->getStartLine());
3635:	$armCondResult = $this->processExprNode($stmt, $armCond, $armCondScope, $nodeCallback, $deepContext);
3636:	$hasYield = $hasYield \|\| $armCondResult->hasYield();
3637:	$throwPoints = array_merge($throwPoints, $armCondResult->getThrowPoints());
3638:	$impurePoints = array_merge($impurePoints, $armCondResult->getImpurePoints());
3639:	$armCondExpr = new BinaryOp\Identical($expr->cond, $armCond);
3640:	$armCondResultScope = $armCondResult->getScope();
3641:	$armCondType = $this->treatPhpDocTypesAsCertain ? $armCondResultScope->getType($armCondExpr) : $armCondResultScope->getNativeType($armCondExpr);
3642:	if ($armCondType->isTrue()->yes()) {
3643:	$hasAlwaysTrueCond = true;
3644:	}
3645:	$armCondScope = $armCondResult->getScope()->filterByFalseyValue($armCondExpr);
3646:	$filteringExprs[] = $armCond;
3647:	}
3648:
3649:	if (count($filteringExprs) === 1) {
3650:	$filteringExpr = new BinaryOp\Identical($expr->cond, $filteringExprs[0]);
3651:	} else {
3652:	$items = [];
3653:	foreach ($filteringExprs as $filteringExpr) {
3654:	$items[] = new Node\ArrayItem($filteringExpr);
3655:	}
3656:	$filteringExpr = new FuncCall(
3657:	new Name\FullyQualified('in_array'),
3658:	[
3659:	new Arg($expr->cond),
3660:	new Arg(new Array_($items)),
3661:	new Arg(new ConstFetch(new Name\FullyQualified('true'))),
3662:	],
3663:	);
3664:	}
3665:
3666:	$bodyScope = $this->processExprNode($stmt, $filteringExpr, $matchScope, static function (): void {
3667:	}, $deepContext)->getTruthyScope();
3668:	$matchArmBody = new MatchExpressionArmBody($bodyScope, $arm->body);
3669:	$armNodes[$i] = new MatchExpressionArm($matchArmBody, $condNodes, $arm->getStartLine());
3670:
3671:	$armResult = $this->processExprNode(
3672:	$stmt,
3673:	$arm->body,
3674:	$bodyScope,
3675:	$nodeCallback,
3676:	ExpressionContext::createTopLevel(),
3677:	);
3678:	$armScope = $armResult->getScope();
3679:	$scope = $scope->mergeWith($armScope);
3680:	$hasYield = $hasYield \|\| $armResult->hasYield();
3681:	$throwPoints = array_merge($throwPoints, $armResult->getThrowPoints());
3682:	$impurePoints = array_merge($impurePoints, $armResult->getImpurePoints());
3683:	$matchScope = $matchScope->filterByFalseyValue($filteringExpr);
3684:	}
3685:
3686:	$remainingType = $matchScope->getType($expr->cond);
3687:	if (!$hasDefaultCond && !$hasAlwaysTrueCond && !$remainingType instanceof NeverType) {
3688:	$throwPoints[] = ThrowPoint::createExplicit($scope, new ObjectType(UnhandledMatchError::class), $expr, false);
3689:	}
3690:
3691:	ksort($armNodes, SORT_NUMERIC);
3692:
3693:	$nodeCallback(new MatchExpressionNode($expr->cond, array_values($armNodes), $expr, $matchScope), $scope);
3694:	} elseif ($expr instanceof AlwaysRememberedExpr) {
3695:	$result = $this->processExprNode($stmt, $expr->getExpr(), $scope, $nodeCallback, $context);
3696:	$hasYield = $result->hasYield();
3697:	$throwPoints = $result->getThrowPoints();
3698:	$impurePoints = $result->getImpurePoints();
3699:	$scope = $result->getScope();
3700:	} elseif ($expr instanceof Expr\Throw_) {
3701:	$hasYield = false;
3702:	$result = $this->processExprNode($stmt, $expr->expr, $scope, $nodeCallback, ExpressionContext::createDeep());
3703:	$throwPoints = $result->getThrowPoints();
3704:	$impurePoints = $result->getImpurePoints();
3705:	$throwPoints[] = ThrowPoint::createExplicit($scope, $scope->getType($expr->expr), $expr, false);
3706:	} elseif ($expr instanceof FunctionCallableNode) {
3707:	$throwPoints = [];
3708:	$impurePoints = [];
3709:	$hasYield = false;
3710:	if ($expr->getName() instanceof Expr) {
3711:	$result = $this->processExprNode($stmt, $expr->getName(), $scope, $nodeCallback, ExpressionContext::createDeep());
3712:	$scope = $result->getScope();
3713:	$hasYield = $result->hasYield();
3714:	$throwPoints = $result->getThrowPoints();
3715:	$impurePoints = $result->getImpurePoints();
3716:	}
3717:	} elseif ($expr instanceof MethodCallableNode) {
3718:	$result = $this->processExprNode($stmt, $expr->getVar(), $scope, $nodeCallback, ExpressionContext::createDeep());
3719:	$scope = $result->getScope();
3720:	$hasYield = $result->hasYield();
3721:	$throwPoints = $result->getThrowPoints();
3722:	$impurePoints = $result->getImpurePoints();
3723:	if ($expr->getName() instanceof Expr) {
3724:	$nameResult = $this->processExprNode($stmt, $expr->getVar(), $scope, $nodeCallback, ExpressionContext::createDeep());
3725:	$scope = $nameResult->getScope();
3726:	$hasYield = $hasYield \|\| $nameResult->hasYield();
3727:	$throwPoints = array_merge($throwPoints, $nameResult->getThrowPoints());
3728:	$impurePoints = array_merge($impurePoints, $nameResult->getImpurePoints());
3729:	}
3730:	} elseif ($expr instanceof StaticMethodCallableNode) {
3731:	$throwPoints = [];
3732:	$impurePoints = [];
3733:	$hasYield = false;
3734:	if ($expr->getClass() instanceof Expr) {
3735:	$classResult = $this->processExprNode($stmt, $expr->getClass(), $scope, $nodeCallback, ExpressionContext::createDeep());
3736:	$scope = $classResult->getScope();
3737:	$hasYield = $classResult->hasYield();
3738:	$throwPoints = $classResult->getThrowPoints();
3739:	$impurePoints = $classResult->getImpurePoints();
3740:	}
3741:	if ($expr->getName() instanceof Expr) {
3742:	$nameResult = $this->processExprNode($stmt, $expr->getName(), $scope, $nodeCallback, ExpressionContext::createDeep());
3743:	$scope = $nameResult->getScope();
3744:	$hasYield = $hasYield \|\| $nameResult->hasYield();
3745:	$throwPoints = array_merge($throwPoints, $nameResult->getThrowPoints());
3746:	$impurePoints = array_merge($impurePoints, $nameResult->getImpurePoints());
3747:	}
3748:	} elseif ($expr instanceof InstantiationCallableNode) {
3749:	$throwPoints = [];
3750:	$impurePoints = [];
3751:	$hasYield = false;
3752:	if ($expr->getClass() instanceof Expr) {
3753:	$classResult = $this->processExprNode($stmt, $expr->getClass(), $scope, $nodeCallback, ExpressionContext::createDeep());
3754:	$scope = $classResult->getScope();
3755:	$hasYield = $classResult->hasYield();
3756:	$throwPoints = $classResult->getThrowPoints();
3757:	$impurePoints = $classResult->getImpurePoints();
3758:	}
3759:	} elseif ($expr instanceof Node\Scalar) {
3760:	$hasYield = false;
3761:	$throwPoints = [];
3762:	$impurePoints = [];
3763:	} elseif ($expr instanceof ConstFetch) {
3764:	$hasYield = false;
3765:	$throwPoints = [];
3766:	$impurePoints = [];
3767:	$nodeCallback($expr->name, $scope);
3768:	} else {
3769:	$hasYield = false;
3770:	$throwPoints = [];
3771:	$impurePoints = [];
3772:	}
3773:
3774:	return new ExpressionResult(
3775:	$scope,
3776:	$hasYield,
3777:	$throwPoints,
3778:	$impurePoints,
3779:	static fn (): MutatingScope => $scope->filterByTruthyValue($expr),
3780:	static fn (): MutatingScope => $scope->filterByFalseyValue($expr),
3781:	);
3782:	}
3783:
3784:	private function getArrayFunctionAppendingType(FunctionReflection $functionReflection, Scope $scope, FuncCall $expr): Type
3785:	{
3786:	$arrayArg = $expr->getArgs()[0]->value;
3787:	$arrayType = $scope->getType($arrayArg);
3788:	$callArgs = array_slice($expr->getArgs(), 1);
3789:
3790:	/**
3791:	* @param Arg[] $callArgs
3792:	* @param callable(?Type, Type, bool): void $setOffsetValueType
3793:	*/
3794:	$setOffsetValueTypes = static function (Scope $scope, array $callArgs, callable $setOffsetValueType, ?bool &$nonConstantArrayWasUnpacked = null): void {
3795:	foreach ($callArgs as $callArg) {
3796:	$callArgType = $scope->getType($callArg->value);
3797:	if ($callArg->unpack) {
3798:	$constantArrays = $callArgType->getConstantArrays();
3799:	if (count($constantArrays) === 1) {
3800:	$iterableValueTypes = $constantArrays[0]->getValueTypes();
3801:	} else {
3802:	$iterableValueTypes = [$callArgType->getIterableValueType()];
3803:	$nonConstantArrayWasUnpacked = true;
3804:	}
3805:
3806:	$isOptional = !$callArgType->isIterableAtLeastOnce()->yes();
3807:	foreach ($iterableValueTypes as $iterableValueType) {
3808:	if ($iterableValueType instanceof UnionType) {
3809:	foreach ($iterableValueType->getTypes() as $innerType) {
3810:	$setOffsetValueType(null, $innerType, $isOptional);
3811:	}
3812:	} else {
3813:	$setOffsetValueType(null, $iterableValueType, $isOptional);
3814:	}
3815:	}
3816:	continue;
3817:	}
3818:	$setOffsetValueType(null, $callArgType, false);
3819:	}
3820:	};
3821:
3822:	$constantArrays = $arrayType->getConstantArrays();
3823:	if (count($constantArrays) > 0) {
3824:	$newArrayTypes = [];
3825:	$prepend = $functionReflection->getName() === 'array_unshift';
3826:	foreach ($constantArrays as $constantArray) {
3827:	$arrayTypeBuilder = $prepend ? ConstantArrayTypeBuilder::createEmpty() : ConstantArrayTypeBuilder::createFromConstantArray($constantArray);
3828:
3829:	$setOffsetValueTypes(
3830:	$scope,
3831:	$callArgs,
3832:	static function (?Type $offsetType, Type $valueType, bool $optional) use (&$arrayTypeBuilder): void {
3833:	$arrayTypeBuilder->setOffsetValueType($offsetType, $valueType, $optional);
3834:	},
3835:	$nonConstantArrayWasUnpacked,
3836:	);
3837:
3838:	if ($prepend) {
3839:	$keyTypes = $constantArray->getKeyTypes();
3840:	$valueTypes = $constantArray->getValueTypes();
3841:	foreach ($keyTypes as $k => $keyType) {
3842:	$arrayTypeBuilder->setOffsetValueType(
3843:	count($keyType->getConstantStrings()) === 1 ? $keyType->getConstantStrings()[0] : null,
3844:	$valueTypes[$k],
3845:	$constantArray->isOptionalKey($k),
3846:	);
3847:	}
3848:	}
3849:
3850:	$constantArray = $arrayTypeBuilder->getArray();
3851:
3852:	if ($constantArray->isConstantArray()->yes() && $nonConstantArrayWasUnpacked) {
3853:	$array = new ArrayType($constantArray->generalize(GeneralizePrecision::lessSpecific())->getIterableKeyType(), $constantArray->getIterableValueType());
3854:	$isList = $constantArray->isList()->yes();
3855:	$constantArray = $constantArray->isIterableAtLeastOnce()->yes()
3856:	? TypeCombinator::intersect($array, new NonEmptyArrayType())
3857:	: $array;
3858:	$constantArray = $isList
3859:	? TypeCombinator::intersect($constantArray, new AccessoryArrayListType())
3860:	: $constantArray;
3861:	}
3862:
3863:	$newArrayTypes[] = $constantArray;
3864:	}
3865:
3866:	return TypeCombinator::union(...$newArrayTypes);
3867:	}
3868:
3869:	$setOffsetValueTypes(
3870:	$scope,
3871:	$callArgs,
3872:	static function (?Type $offsetType, Type $valueType, bool $optional) use (&$arrayType): void {
3873:	$isIterableAtLeastOnce = $arrayType->isIterableAtLeastOnce()->yes() \|\| !$optional;
3874:	$arrayType = $arrayType->setOffsetValueType($offsetType, $valueType);
3875:	if ($isIterableAtLeastOnce) {
3876:	return;
3877:	}
3878:
3879:	$arrayType = TypeCombinator::union($arrayType, new ConstantArrayType([], []));
3880:	},
3881:	);
3882:
3883:	return $arrayType;
3884:	}
3885:
3886:	private function getArraySortPreserveListFunctionType(Type $type): Type
3887:	{
3888:	$isIterableAtLeastOnce = $type->isIterableAtLeastOnce();
3889:	if ($isIterableAtLeastOnce->no()) {
3890:	return $type;
3891:	}
3892:
3893:	return TypeTraverser::map($type, static function (Type $type, callable $traverse) use ($isIterableAtLeastOnce): Type {
3894:	if ($type instanceof UnionType \|\| $type instanceof IntersectionType) {
3895:	return $traverse($type);
3896:	}
3897:
3898:	if (!$type instanceof ArrayType && !$type instanceof ConstantArrayType) {
3899:	return $type;
3900:	}
3901:
3902:	$newArrayType = TypeCombinator::intersect(new ArrayType(new IntegerType(), $type->getIterableValueType()), new AccessoryArrayListType());
3903:	if ($isIterableAtLeastOnce->yes()) {
3904:	$newArrayType = TypeCombinator::intersect($newArrayType, new NonEmptyArrayType());
3905:	}
3906:
3907:	return $newArrayType;
3908:	});
3909:	}
3910:
3911:	private function getArraySortDoNotPreserveListFunctionType(Type $type): Type
3912:	{
3913:	$isIterableAtLeastOnce = $type->isIterableAtLeastOnce();
3914:	if ($isIterableAtLeastOnce->no()) {
3915:	return $type;
3916:	}
3917:
3918:	return TypeTraverser::map($type, static function (Type $type, callable $traverse) use ($isIterableAtLeastOnce): Type {
3919:	if ($type instanceof UnionType) {
3920:	return $traverse($type);
3921:	}
3922:
3923:	$constantArrays = $type->getConstantArrays();
3924:	if (count($constantArrays) > 0) {
3925:	$types = [];
3926:	foreach ($constantArrays as $constantArray) {
3927:	$types[] = new ConstantArrayType(
3928:	$constantArray->getKeyTypes(),
3929:	$constantArray->getValueTypes(),
3930:	$constantArray->getNextAutoIndexes(),
3931:	$constantArray->getOptionalKeys(),
3932:	$constantArray->isList()->and(TrinaryLogic::createMaybe()),
3933:	);
3934:	}
3935:
3936:	return TypeCombinator::union(...$types);
3937:	}
3938:
3939:	$newArrayType = new ArrayType($type->getIterableKeyType(), $type->getIterableValueType());
3940:	if ($isIterableAtLeastOnce->yes()) {
3941:	$newArrayType = TypeCombinator::intersect($newArrayType, new NonEmptyArrayType());
3942:	}
3943:
3944:	return $newArrayType;
3945:	});
3946:	}
3947:
3948:	private function getFunctionThrowPoint(
3949:	FunctionReflection $functionReflection,
3950:	?ParametersAcceptor $parametersAcceptor,
3951:	FuncCall $funcCall,
3952:	MutatingScope $scope,
3953:	): ?ThrowPoint
3954:	{
3955:	$normalizedFuncCall = $funcCall;
3956:	if ($parametersAcceptor !== null) {
3957:	$normalizedFuncCall = ArgumentsNormalizer::reorderFuncArguments($parametersAcceptor, $funcCall);
3958:	}
3959:
3960:	if ($normalizedFuncCall !== null) {
3961:	foreach ($this->dynamicThrowTypeExtensionProvider->getDynamicFunctionThrowTypeExtensions() as $extension) {
3962:	if (!$extension->isFunctionSupported($functionReflection)) {
3963:	continue;
3964:	}
3965:
3966:	$throwType = $extension->getThrowTypeFromFunctionCall($functionReflection, $normalizedFuncCall, $scope);
3967:	if ($throwType === null) {
3968:	return null;
3969:	}
3970:
3971:	return ThrowPoint::createExplicit($scope, $throwType, $funcCall, false);
3972:	}
3973:	}
3974:
3975:	$throwType = $functionReflection->getThrowType();
3976:	if ($throwType === null && $parametersAcceptor !== null) {
3977:	$returnType = $parametersAcceptor->getReturnType();
3978:	if ($returnType instanceof NeverType && $returnType->isExplicit()) {
3979:	$throwType = new ObjectType(Throwable::class);
3980:	}
3981:	}
3982:
3983:	if ($throwType !== null) {
3984:	if (!$throwType->isVoid()->yes()) {
3985:	return ThrowPoint::createExplicit($scope, $throwType, $funcCall, true);
3986:	}
3987:	} elseif ($this->implicitThrows) {
3988:	$requiredParameters = null;
3989:	if ($parametersAcceptor !== null) {
3990:	$requiredParameters = 0;
3991:	foreach ($parametersAcceptor->getParameters() as $parameter) {
3992:	if ($parameter->isOptional()) {
3993:	continue;
3994:	}
3995:
3996:	$requiredParameters++;
3997:	}
3998:	}
3999:	if (
4000:	!$functionReflection->isBuiltin()
4001:	\|\| $requiredParameters === null
4002:	\|\| $requiredParameters > 0
4003:	\|\| count($funcCall->getArgs()) > 0
4004:	) {
4005:	$functionReturnedType = $scope->getType($funcCall);
4006:	if (!(new ObjectType(Throwable::class))->isSuperTypeOf($functionReturnedType)->yes()) {
4007:	return ThrowPoint::createImplicit($scope, $funcCall);
4008:	}
4009:	}
4010:	}
4011:
4012:	return null;
4013:	}
4014:
4015:	private function getMethodThrowPoint(MethodReflection $methodReflection, ParametersAcceptor $parametersAcceptor, MethodCall $methodCall, MutatingScope $scope): ?ThrowPoint
4016:	{
4017:	$normalizedMethodCall = ArgumentsNormalizer::reorderMethodArguments($parametersAcceptor, $methodCall);
4018:	if ($normalizedMethodCall !== null) {
4019:	foreach ($this->dynamicThrowTypeExtensionProvider->getDynamicMethodThrowTypeExtensions() as $extension) {
4020:	if (!$extension->isMethodSupported($methodReflection)) {
4021:	continue;
4022:	}
4023:
4024:	$throwType = $extension->getThrowTypeFromMethodCall($methodReflection, $normalizedMethodCall, $scope);
4025:	if ($throwType === null) {
4026:	return null;
4027:	}
4028:
4029:	return ThrowPoint::createExplicit($scope, $throwType, $methodCall, false);
4030:	}
4031:	}
4032:
4033:	$throwType = $methodReflection->getThrowType();
4034:	if ($throwType === null) {
4035:	$returnType = $parametersAcceptor->getReturnType();
4036:	if ($returnType instanceof NeverType && $returnType->isExplicit()) {
4037:	$throwType = new ObjectType(Throwable::class);
4038:	}
4039:	}
4040:
4041:	if ($throwType !== null) {
4042:	if (!$throwType->isVoid()->yes()) {
4043:	return ThrowPoint::createExplicit($scope, $throwType, $methodCall, true);
4044:	}
4045:	} elseif ($this->implicitThrows) {
4046:	$methodReturnedType = $scope->getType($methodCall);
4047:	if (!(new ObjectType(Throwable::class))->isSuperTypeOf($methodReturnedType)->yes()) {
4048:	return ThrowPoint::createImplicit($scope, $methodCall);
4049:	}
4050:	}
4051:
4052:	return null;
4053:	}
4054:
4055:	/**
4056:	* @param Node\Arg[] $args
4057:	*/
4058:	private function getConstructorThrowPoint(MethodReflection $constructorReflection, ParametersAcceptor $parametersAcceptor, ClassReflection $classReflection, New_ $new, Name $className, array $args, MutatingScope $scope): ?ThrowPoint
4059:	{
4060:	$methodCall = new StaticCall($className, $constructorReflection->getName(), $args);
4061:	$normalizedMethodCall = ArgumentsNormalizer::reorderStaticCallArguments($parametersAcceptor, $methodCall);
4062:	if ($normalizedMethodCall !== null) {
4063:	foreach ($this->dynamicThrowTypeExtensionProvider->getDynamicStaticMethodThrowTypeExtensions() as $extension) {
4064:	if (!$extension->isStaticMethodSupported($constructorReflection)) {
4065:	continue;
4066:	}
4067:
4068:	$throwType = $extension->getThrowTypeFromStaticMethodCall($constructorReflection, $normalizedMethodCall, $scope);
4069:	if ($throwType === null) {
4070:	return null;
4071:	}
4072:
4073:	return ThrowPoint::createExplicit($scope, $throwType, $new, false);
4074:	}
4075:	}
4076:
4077:	if ($constructorReflection->getThrowType() !== null) {
4078:	$throwType = $constructorReflection->getThrowType();
4079:	if (!$throwType->isVoid()->yes()) {
4080:	return ThrowPoint::createExplicit($scope, $throwType, $new, true);
4081:	}
4082:	} elseif ($this->implicitThrows) {
4083:	if ($classReflection->getName() !== Throwable::class && !$classReflection->isSubclassOf(Throwable::class)) {
4084:	return ThrowPoint::createImplicit($scope, $methodCall);
4085:	}
4086:	}
4087:
4088:	return null;
4089:	}
4090:
4091:	private function getStaticMethodThrowPoint(MethodReflection $methodReflection, ParametersAcceptor $parametersAcceptor, StaticCall $methodCall, MutatingScope $scope): ?ThrowPoint
4092:	{
4093:	$normalizedMethodCall = ArgumentsNormalizer::reorderStaticCallArguments($parametersAcceptor, $methodCall);
4094:	if ($normalizedMethodCall !== null) {
4095:	foreach ($this->dynamicThrowTypeExtensionProvider->getDynamicStaticMethodThrowTypeExtensions() as $extension) {
4096:	if (!$extension->isStaticMethodSupported($methodReflection)) {
4097:	continue;
4098:	}
4099:
4100:	$throwType = $extension->getThrowTypeFromStaticMethodCall($methodReflection, $normalizedMethodCall, $scope);
4101:	if ($throwType === null) {
4102:	return null;
4103:	}
4104:
4105:	return ThrowPoint::createExplicit($scope, $throwType, $methodCall, false);
4106:	}
4107:	}
4108:
4109:	if ($methodReflection->getThrowType() !== null) {
4110:	$throwType = $methodReflection->getThrowType();
4111:	if (!$throwType->isVoid()->yes()) {
4112:	return ThrowPoint::createExplicit($scope, $throwType, $methodCall, true);
4113:	}
4114:	} elseif ($this->implicitThrows) {
4115:	$methodReturnedType = $scope->getType($methodCall);
4116:	if (!(new ObjectType(Throwable::class))->isSuperTypeOf($methodReturnedType)->yes()) {
4117:	return ThrowPoint::createImplicit($scope, $methodCall);
4118:	}
4119:	}
4120:
4121:	return null;
4122:	}
4123:
4124:	/**
4125:	* @return string[]
4126:	*/
4127:	private function getAssignedVariables(Expr $expr): array
4128:	{
4129:	if ($expr instanceof Expr\Variable) {
4130:	if (is_string($expr->name)) {
4131:	return [$expr->name];
4132:	}
4133:
4134:	return [];
4135:	}
4136:
4137:	if ($expr instanceof Expr\List_) {
4138:	$names = [];
4139:	foreach ($expr->items as $item) {
4140:	if ($item === null) {
4141:	continue;
4142:	}
4143:
4144:	$names = array_merge($names, $this->getAssignedVariables($item->value));
4145:	}
4146:
4147:	return $names;
4148:	}
4149:
4150:	if ($expr instanceof ArrayDimFetch) {
4151:	return $this->getAssignedVariables($expr->var);
4152:	}
4153:
4154:	return [];
4155:	}
4156:
4157:	/**
4158:	* @param callable(Node $node, Scope $scope): void $nodeCallback
4159:	*/
4160:	private function callNodeCallbackWithExpression(
4161:	callable $nodeCallback,
4162:	Expr $expr,
4163:	MutatingScope $scope,
4164:	ExpressionContext $context,
4165:	): void
4166:	{
4167:	if ($context->isDeep()) {
4168:	$scope = $scope->exitFirstLevelStatements();
4169:	}
4170:	$nodeCallback($expr, $scope);
4171:	}
4172:
4173:	/**
4174:	* @param callable(Node $node, Scope $scope): void $nodeCallback
4175:	*/
4176:	private function processClosureNode(
4177:	Node\Stmt $stmt,
4178:	Expr\Closure $expr,
4179:	MutatingScope $scope,
4180:	callable $nodeCallback,
4181:	ExpressionContext $context,
4182:	?Type $passedToType,
4183:	): ProcessClosureResult
4184:	{
4185:	foreach ($expr->params as $param) {
4186:	$this->processParamNode($stmt, $param, $scope, $nodeCallback);
4187:	}
4188:
4189:	$byRefUses = [];
4190:
4191:	$closureCallArgs = $expr->getAttribute(ClosureArgVisitor::ATTRIBUTE_NAME);
4192:	$callableParameters = $this->createCallableParameters(
4193:	$scope,
4194:	$expr,
4195:	$closureCallArgs,
4196:	$passedToType,
4197:	);
4198:
4199:	$useScope = $scope;
4200:	foreach ($expr->uses as $use) {
4201:	if ($use->byRef) {
4202:	$byRefUses[] = $use;
4203:	$useScope = $useScope->enterExpressionAssign($use->var);
4204:
4205:	$inAssignRightSideVariableName = $context->getInAssignRightSideVariableName();
4206:	$inAssignRightSideType = $context->getInAssignRightSideType();
4207:	$inAssignRightSideNativeType = $context->getInAssignRightSideNativeType();
4208:	if (
4209:	$inAssignRightSideVariableName === $use->var->name
4210:	&& $inAssignRightSideType !== null
4211:	&& $inAssignRightSideNativeType !== null
4212:	) {
4213:	if ($inAssignRightSideType instanceof ClosureType) {
4214:	$variableType = $inAssignRightSideType;
4215:	} else {
4216:	$alreadyHasVariableType = $scope->hasVariableType($inAssignRightSideVariableName);
4217:	if ($alreadyHasVariableType->no()) {
4218:	$variableType = TypeCombinator::union(new NullType(), $inAssignRightSideType);
4219:	} else {
4220:	$variableType = TypeCombinator::union($scope->getVariableType($inAssignRightSideVariableName), $inAssignRightSideType);
4221:	}
4222:	}
4223:	if ($inAssignRightSideNativeType instanceof ClosureType) {
4224:	$variableNativeType = $inAssignRightSideNativeType;
4225:	} else {
4226:	$alreadyHasVariableType = $scope->hasVariableType($inAssignRightSideVariableName);
4227:	if ($alreadyHasVariableType->no()) {
4228:	$variableNativeType = TypeCombinator::union(new NullType(), $inAssignRightSideNativeType);
4229:	} else {
4230:	$variableNativeType = TypeCombinator::union($scope->getVariableType($inAssignRightSideVariableName), $inAssignRightSideNativeType);
4231:	}
4232:	}
4233:	$scope = $scope->assignVariable($inAssignRightSideVariableName, $variableType, $variableNativeType, TrinaryLogic::createYes());
4234:	}
4235:	}
4236:	$this->processExprNode($stmt, $use->var, $useScope, $nodeCallback, $context);
4237:	if (!$use->byRef) {
4238:	continue;
4239:	}
4240:
4241:	$useScope = $useScope->exitExpressionAssign($use->var);
4242:	}
4243:
4244:	if ($expr->returnType !== null) {
4245:	$nodeCallback($expr->returnType, $scope);
4246:	}
4247:
4248:	$closureScope = $scope->enterAnonymousFunction($expr, $callableParameters);
4249:	$closureScope = $closureScope->processClosureScope($scope, null, $byRefUses);
4250:	$closureType = $closureScope->getAnonymousFunctionReflection();
4251:	if (!$closureType instanceof ClosureType) {
4252:	throw new ShouldNotHappenException();
4253:	}
4254:
4255:	$nodeCallback(new InClosureNode($closureType, $expr), $closureScope);
4256:
4257:	$executionEnds = [];
4258:	$gatheredReturnStatements = [];
4259:	$gatheredYieldStatements = [];
4260:	$closureImpurePoints = [];
4261:	$invalidateExpressions = [];
4262:	$closureStmtsCallback = static function (Node $node, Scope $scope) use ($nodeCallback, &$executionEnds, &$gatheredReturnStatements, &$gatheredYieldStatements, &$closureScope, &$closureImpurePoints, &$invalidateExpressions): void {
4263:	$nodeCallback($node, $scope);
4264:	if ($scope->getAnonymousFunctionReflection() !== $closureScope->getAnonymousFunctionReflection()) {
4265:	return;
4266:	}
4267:	if ($node instanceof PropertyAssignNode) {
4268:	$closureImpurePoints[] = new ImpurePoint(
4269:	$scope,
4270:	$node,
4271:	'propertyAssign',
4272:	'property assignment',
4273:	true,
4274:	);
4275:	return;
4276:	}
4277:	if ($node instanceof ExecutionEndNode) {
4278:	$executionEnds[] = $node;
4279:	return;
4280:	}
4281:	if ($node instanceof InvalidateExprNode) {
4282:	$invalidateExpressions[] = $node;
4283:	return;
4284:	}
4285:	if ($node instanceof Expr\Yield_ \|\| $node instanceof Expr\YieldFrom) {
4286:	$gatheredYieldStatements[] = $node;
4287:	}
4288:	if (!$node instanceof Return_) {
4289:	return;
4290:	}
4291:
4292:	$gatheredReturnStatements[] = new ReturnStatement($scope, $node);
4293:	};
4294:
4295:	if (count($byRefUses) === 0) {
4296:	$statementResult = $this->processStmtNodes($expr, $expr->stmts, $closureScope, $closureStmtsCallback, StatementContext::createTopLevel());
4297:	$nodeCallback(new ClosureReturnStatementsNode(
4298:	$expr,
4299:	$gatheredReturnStatements,
4300:	$gatheredYieldStatements,
4301:	$statementResult,
4302:	$executionEnds,
4303:	array_merge($statementResult->getImpurePoints(), $closureImpurePoints),
4304:	), $closureScope);
4305:
4306:	return new ProcessClosureResult($scope, $statementResult->getThrowPoints(), $statementResult->getImpurePoints(), $invalidateExpressions);
4307:	}
4308:
4309:	$count = 0;
4310:	$closureResultScope = null;
4311:	do {
4312:	$prevScope = $closureScope;
4313:
4314:	$intermediaryClosureScopeResult = $this->processStmtNodes($expr, $expr->stmts, $closureScope, static function (): void {
4315:	}, StatementContext::createTopLevel());
4316:	$intermediaryClosureScope = $intermediaryClosureScopeResult->getScope();
4317:	foreach ($intermediaryClosureScopeResult->getExitPoints() as $exitPoint) {
4318:	$intermediaryClosureScope = $intermediaryClosureScope->mergeWith($exitPoint->getScope());
4319:	}
4320:
4321:	if ($expr->getAttribute(ImmediatelyInvokedClosureVisitor::ATTRIBUTE_NAME) === true) {
4322:	$closureResultScope = $intermediaryClosureScope;
4323:	break;
4324:	}
4325:
4326:	$closureScope = $scope->enterAnonymousFunction($expr, $callableParameters);
4327:	$closureScope = $closureScope->processClosureScope($intermediaryClosureScope, $prevScope, $byRefUses);
4328:
4329:	if ($closureScope->equals($prevScope)) {
4330:	break;
4331:	}
4332:	if ($count >= self::GENERALIZE_AFTER_ITERATION) {
4333:	$closureScope = $prevScope->generalizeWith($closureScope);
4334:	}
4335:	$count++;
4336:	} while ($count < self::LOOP_SCOPE_ITERATIONS);
4337:
4338:	if ($closureResultScope === null) {
4339:	$closureResultScope = $closureScope;
4340:	}
4341:
4342:	$statementResult = $this->processStmtNodes($expr, $expr->stmts, $closureScope, $closureStmtsCallback, StatementContext::createTopLevel());
4343:	$nodeCallback(new ClosureReturnStatementsNode(
4344:	$expr,
4345:	$gatheredReturnStatements,
4346:	$gatheredYieldStatements,
4347:	$statementResult,
4348:	$executionEnds,
4349:	array_merge($statementResult->getImpurePoints(), $closureImpurePoints),
4350:	), $closureScope);
4351:
4352:	return new ProcessClosureResult($scope->processClosureScope($closureResultScope, null, $byRefUses), $statementResult->getThrowPoints(), $statementResult->getImpurePoints(), $invalidateExpressions);
4353:	}
4354:
4355:	/**
4356:	* @param InvalidateExprNode[] $invalidatedExpressions
4357:	* @param string[] $uses
4358:	*/
4359:	private function processImmediatelyCalledCallable(MutatingScope $scope, array $invalidatedExpressions, array $uses): MutatingScope
4360:	{
4361:	if ($scope->isInClass()) {
4362:	$uses[] = 'this';
4363:	}
4364:
4365:	$finder = new NodeFinder();
4366:	foreach ($invalidatedExpressions as $invalidateExpression) {
4367:	$found = false;
4368:	foreach ($uses as $use) {
4369:	$result = $finder->findFirst([$invalidateExpression->getExpr()], static fn ($node) => $node instanceof Variable && $node->name === $use);
4370:	if ($result === null) {
4371:	continue;
4372:	}
4373:
4374:	$found = true;
4375:	break;
4376:	}
4377:
4378:	if (!$found) {
4379:	continue;
4380:	}
4381:
4382:	$scope = $scope->invalidateExpression($invalidateExpression->getExpr(), true);
4383:	}
4384:
4385:	return $scope;
4386:	}
4387:
4388:	/**
4389:	* @param callable(Node $node, Scope $scope): void $nodeCallback
4390:	*/
4391:	private function processArrowFunctionNode(
4392:	Node\Stmt $stmt,
4393:	Expr\ArrowFunction $expr,
4394:	MutatingScope $scope,
4395:	callable $nodeCallback,
4396:	?Type $passedToType,
4397:	): ExpressionResult
4398:	{
4399:	foreach ($expr->params as $param) {
4400:	$this->processParamNode($stmt, $param, $scope, $nodeCallback);
4401:	}
4402:	if ($expr->returnType !== null) {
4403:	$nodeCallback($expr->returnType, $scope);
4404:	}
4405:
4406:	$arrowFunctionCallArgs = $expr->getAttribute(ArrowFunctionArgVisitor::ATTRIBUTE_NAME);
4407:	$arrowFunctionScope = $scope->enterArrowFunction($expr, $this->createCallableParameters(
4408:	$scope,
4409:	$expr,
4410:	$arrowFunctionCallArgs,
4411:	$passedToType,
4412:	));
4413:	$arrowFunctionType = $arrowFunctionScope->getAnonymousFunctionReflection();
4414:	if (!$arrowFunctionType instanceof ClosureType) {
4415:	throw new ShouldNotHappenException();
4416:	}
4417:	$nodeCallback(new InArrowFunctionNode($arrowFunctionType, $expr), $arrowFunctionScope);
4418:	$exprResult = $this->processExprNode($stmt, $expr->expr, $arrowFunctionScope, $nodeCallback, ExpressionContext::createTopLevel());
4419:
4420:	return new ExpressionResult($scope, false, $exprResult->getThrowPoints(), $exprResult->getImpurePoints());
4421:	}
4422:
4423:	/**
4424:	* @param Node\Arg[] $args
4425:	* @return ParameterReflection[]\|null
4426:	*/
4427:	public function createCallableParameters(Scope $scope, Expr $closureExpr, ?array $args, ?Type $passedToType): ?array
4428:	{
4429:	$callableParameters = null;
4430:	if ($args !== null) {
4431:	$closureType = $scope->getType($closureExpr);
4432:
4433:	if ($closureType->isCallable()->no()) {
4434:	return null;
4435:	}
4436:
4437:	$acceptors = $closureType->getCallableParametersAcceptors($scope);
4438:	if (count($acceptors) === 1) {
4439:	$callableParameters = $acceptors[0]->getParameters();
4440:
4441:	foreach ($callableParameters as $index => $callableParameter) {
4442:	if (!isset($args[$index])) {
4443:	continue;
4444:	}
4445:
4446:	$type = $scope->getType($args[$index]->value);
4447:	$callableParameters[$index] = new NativeParameterReflection(
4448:	$callableParameter->getName(),
4449:	$callableParameter->isOptional(),
4450:	$type,
4451:	$callableParameter->passedByReference(),
4452:	$callableParameter->isVariadic(),
4453:	$callableParameter->getDefaultValue(),
4454:	);
4455:	}
4456:	}
4457:	} elseif ($passedToType !== null && !$passedToType->isCallable()->no()) {
4458:	if ($passedToType instanceof UnionType) {
4459:	$passedToType = TypeCombinator::union(...array_filter(
4460:	$passedToType->getTypes(),
4461:	static fn (Type $type) => $type->isCallable()->yes(),
4462:	));
4463:
4464:	if ($passedToType->isCallable()->no()) {
4465:	return null;
4466:	}
4467:	}
4468:
4469:	$acceptors = $passedToType->getCallableParametersAcceptors($scope);
4470:	if (count($acceptors) > 0) {
4471:	foreach ($acceptors as $acceptor) {
4472:	if ($callableParameters === null) {
4473:	$callableParameters = array_map(static fn (ParameterReflection $callableParameter) => new NativeParameterReflection(
4474:	$callableParameter->getName(),
4475:	$callableParameter->isOptional(),
4476:	$callableParameter->getType(),
4477:	$callableParameter->passedByReference(),
4478:	$callableParameter->isVariadic(),
4479:	$callableParameter->getDefaultValue(),
4480:	), $acceptor->getParameters());
4481:	continue;
4482:	}
4483:
4484:	$newParameters = [];
4485:	foreach ($acceptor->getParameters() as $i => $callableParameter) {
4486:	if (!array_key_exists($i, $callableParameters)) {
4487:	$newParameters[] = $callableParameter;
4488:	continue;
4489:	}
4490:
4491:	$newParameters[] = $callableParameters[$i]->union(new NativeParameterReflection(
4492:	$callableParameter->getName(),
4493:	$callableParameter->isOptional(),
4494:	$callableParameter->getType(),
4495:	$callableParameter->passedByReference(),
4496:	$callableParameter->isVariadic(),
4497:	$callableParameter->getDefaultValue(),
4498:	));
4499:	}
4500:
4501:	$callableParameters = $newParameters;
4502:	}
4503:	}
4504:	}
4505:
4506:	return $callableParameters;
4507:	}
4508:
4509:	/**
4510:	* @param callable(Node $node, Scope $scope): void $nodeCallback
4511:	*/
4512:	private function processParamNode(
4513:	Node\Stmt $stmt,
4514:	Node\Param $param,
4515:	MutatingScope $scope,
4516:	callable $nodeCallback,
4517:	): void
4518:	{
4519:	$this->processAttributeGroups($stmt, $param->attrGroups, $scope, $nodeCallback);
4520:	$nodeCallback($param, $scope);
4521:	if ($param->type !== null) {
4522:	$nodeCallback($param->type, $scope);
4523:	}
4524:	if ($param->default === null) {
4525:	return;
4526:	}
4527:
4528:	$this->processExprNode($stmt, $param->default, $scope, $nodeCallback, ExpressionContext::createDeep());
4529:	}
4530:
4531:	/**
4532:	* @param AttributeGroup[] $attrGroups
4533:	* @param callable(Node $node, Scope $scope): void $nodeCallback
4534:	*/
4535:	private function processAttributeGroups(
4536:	Node\Stmt $stmt,
4537:	array $attrGroups,
4538:	MutatingScope $scope,
4539:	callable $nodeCallback,
4540:	): void
4541:	{
4542:	foreach ($attrGroups as $attrGroup) {
4543:	foreach ($attrGroup->attrs as $attr) {
4544:	foreach ($attr->args as $arg) {
4545:	$this->processExprNode($stmt, $arg->value, $scope, $nodeCallback, ExpressionContext::createDeep());
4546:	$nodeCallback($arg, $scope);
4547:	}
4548:	$nodeCallback($attr, $scope);
4549:	}
4550:	$nodeCallback($attrGroup, $scope);
4551:	}
4552:	}
4553:
4554:	/**
4555:	* @param MethodReflection\|FunctionReflection\|null $calleeReflection
4556:	* @param callable(Node $node, Scope $scope): void $nodeCallback
4557:	*/
4558:	private function processArgs(
4559:	Node\Stmt $stmt,
4560:	$calleeReflection,
4561:	?ExtendedMethodReflection $nakedMethodReflection,
4562:	?ParametersAcceptor $parametersAcceptor,
4563:	CallLike $callLike,
4564:	MutatingScope $scope,
4565:	callable $nodeCallback,
4566:	ExpressionContext $context,
4567:	?MutatingScope $closureBindScope = null,
4568:	): ExpressionResult
4569:	{
4570:	$args = $callLike->getArgs();
4571:
4572:	if ($parametersAcceptor !== null) {
4573:	$parameters = $parametersAcceptor->getParameters();
4574:	}
4575:
4576:	$hasYield = false;
4577:	$throwPoints = [];
4578:	$impurePoints = [];
4579:	foreach ($args as $i => $arg) {
4580:	$assignByReference = false;
4581:	$parameter = null;
4582:	$parameterType = null;
4583:	$parameterNativeType = null;
4584:	if (isset($parameters) && $parametersAcceptor !== null) {
4585:	if (isset($parameters[$i])) {
4586:	$assignByReference = $parameters[$i]->passedByReference()->createsNewVariable();
4587:	$parameterType = $parameters[$i]->getType();
4588:
4589:	if ($parameters[$i] instanceof ExtendedParameterReflection) {
4590:	$parameterNativeType = $parameters[$i]->getNativeType();
4591:	}
4592:	$parameter = $parameters[$i];
4593:	} elseif (count($parameters) > 0 && $parametersAcceptor->isVariadic()) {
4594:	$lastParameter = $parameters[count($parameters) - 1];
4595:	$assignByReference = $lastParameter->passedByReference()->createsNewVariable();
4596:	$parameterType = $lastParameter->getType();
4597:
4598:	if ($lastParameter instanceof ExtendedParameterReflection) {
4599:	$parameterNativeType = $lastParameter->getNativeType();
4600:	}
4601:	$parameter = $lastParameter;
4602:	}
4603:	}
4604:
4605:	$lookForUnset = false;
4606:	if ($assignByReference) {
4607:	$isBuiltin = false;
4608:	if ($calleeReflection instanceof FunctionReflection && $calleeReflection->isBuiltin()) {
4609:	$isBuiltin = true;
4610:	} elseif ($calleeReflection instanceof ExtendedMethodReflection && $calleeReflection->getDeclaringClass()->isBuiltin()) {
4611:	$isBuiltin = true;
4612:	}
4613:	if (
4614:	$isBuiltin
4615:	\|\| ($parameterNativeType === null \|\| !$parameterNativeType->isNull()->no())
4616:	) {
4617:	$scope = $this->lookForSetAllowedUndefinedExpressions($scope, $arg->value);
4618:	$lookForUnset = true;
4619:	}
4620:	}
4621:
4622:	if ($calleeReflection !== null) {
4623:	$scope = $scope->pushInFunctionCall($calleeReflection, $parameter);
4624:	}
4625:
4626:	$originalArg = $arg->getAttribute(ArgumentsNormalizer::ORIGINAL_ARG_ATTRIBUTE) ?? $arg;
4627:	$nodeCallback($originalArg, $scope);
4628:
4629:	$originalScope = $scope;
4630:	$scopeToPass = $scope;
4631:	if ($i === 0 && $closureBindScope !== null) {
4632:	$scopeToPass = $closureBindScope;
4633:	}
4634:
4635:	if ($parameter instanceof ExtendedParameterReflection) {
4636:	$parameterCallImmediately = $parameter->isImmediatelyInvokedCallable();
4637:	if ($parameterCallImmediately->maybe()) {
4638:	$callCallbackImmediately = $calleeReflection instanceof FunctionReflection;
4639:	} else {
4640:	$callCallbackImmediately = $parameterCallImmediately->yes();
4641:	}
4642:	} else {
4643:	$callCallbackImmediately = $calleeReflection instanceof FunctionReflection;
4644:	}
4645:	if ($arg->value instanceof Expr\Closure) {
4646:	$restoreThisScope = null;
4647:	if (
4648:	$closureBindScope === null
4649:	&& $parameter instanceof ExtendedParameterReflection
4650:	&& $parameter->getClosureThisType() !== null
4651:	&& !$arg->value->static
4652:	) {
4653:	$restoreThisScope = $scopeToPass;
4654:	$scopeToPass = $scopeToPass->assignVariable('this', $parameter->getClosureThisType(), new ObjectWithoutClassType(), TrinaryLogic::createYes());
4655:	}
4656:
4657:	if ($parameter !== null) {
4658:	$overwritingParameterType = $this->getParameterTypeFromParameterClosureTypeExtension($callLike, $calleeReflection, $parameter, $scopeToPass);
4659:
4660:	if ($overwritingParameterType !== null) {
4661:	$parameterType = $overwritingParameterType;
4662:	}
4663:	}
4664:
4665:	$this->callNodeCallbackWithExpression($nodeCallback, $arg->value, $scopeToPass, $context);
4666:	$closureResult = $this->processClosureNode($stmt, $arg->value, $scopeToPass, $nodeCallback, $context, $parameterType ?? null);
4667:	if ($callCallbackImmediately) {
4668:	$throwPoints = array_merge($throwPoints, array_map(static fn (ThrowPoint $throwPoint) => $throwPoint->isExplicit() ? ThrowPoint::createExplicit($scope, $throwPoint->getType(), $arg->value, $throwPoint->canContainAnyThrowable()) : ThrowPoint::createImplicit($scope, $arg->value), $closureResult->getThrowPoints()));
4669:	$impurePoints = array_merge($impurePoints, $closureResult->getImpurePoints());
4670:	}
4671:
4672:	$uses = [];
4673:	foreach ($arg->value->uses as $use) {
4674:	if (!is_string($use->var->name)) {
4675:	continue;
4676:	}
4677:
4678:	$uses[] = $use->var->name;
4679:	}
4680:
4681:	$scope = $closureResult->getScope();
4682:	$invalidateExpressions = $closureResult->getInvalidateExpressions();
4683:	if ($restoreThisScope !== null) {
4684:	$nodeFinder = new NodeFinder();
4685:	$cb = static fn ($expr) => $expr instanceof Variable && $expr->name === 'this';
4686:	foreach ($invalidateExpressions as $j => $invalidateExprNode) {
4687:	$foundThis = $nodeFinder->findFirst([$invalidateExprNode->getExpr()], $cb);
4688:	if ($foundThis === null) {
4689:	continue;
4690:	}
4691:
4692:	unset($invalidateExpressions[$j]);
4693:	}
4694:	$invalidateExpressions = array_values($invalidateExpressions);
4695:	$scope = $scope->restoreThis($restoreThisScope);
4696:	}
4697:
4698:	$scope = $this->processImmediatelyCalledCallable($scope, $invalidateExpressions, $uses);
4699:	} elseif ($arg->value instanceof Expr\ArrowFunction) {
4700:	if (
4701:	$closureBindScope === null
4702:	&& $parameter instanceof ExtendedParameterReflection
4703:	&& $parameter->getClosureThisType() !== null
4704:	&& !$arg->value->static
4705:	) {
4706:	$scopeToPass = $scopeToPass->assignVariable('this', $parameter->getClosureThisType(), new ObjectWithoutClassType(), TrinaryLogic::createYes());
4707:	}
4708:
4709:	if ($parameter !== null) {
4710:	$overwritingParameterType = $this->getParameterTypeFromParameterClosureTypeExtension($callLike, $calleeReflection, $parameter, $scopeToPass);
4711:
4712:	if ($overwritingParameterType !== null) {
4713:	$parameterType = $overwritingParameterType;
4714:	}
4715:	}
4716:
4717:	$this->callNodeCallbackWithExpression($nodeCallback, $arg->value, $scopeToPass, $context);
4718:	$arrowFunctionResult = $this->processArrowFunctionNode($stmt, $arg->value, $scopeToPass, $nodeCallback, $parameterType ?? null);
4719:	if ($callCallbackImmediately) {
4720:	$throwPoints = array_merge($throwPoints, array_map(static fn (ThrowPoint $throwPoint) => $throwPoint->isExplicit() ? ThrowPoint::createExplicit($scope, $throwPoint->getType(), $arg->value, $throwPoint->canContainAnyThrowable()) : ThrowPoint::createImplicit($scope, $arg->value), $arrowFunctionResult->getThrowPoints()));
4721:	$impurePoints = array_merge($impurePoints, $arrowFunctionResult->getImpurePoints());
4722:	}
4723:	} else {
4724:	$exprType = $scope->getType($arg->value);
4725:	$exprResult = $this->processExprNode($stmt, $arg->value, $scopeToPass, $nodeCallback, $context->enterDeep());
4726:	$throwPoints = array_merge($throwPoints, $exprResult->getThrowPoints());
4727:	$impurePoints = array_merge($impurePoints, $exprResult->getImpurePoints());
4728:	$scope = $exprResult->getScope();
4729:	$hasYield = $hasYield \|\| $exprResult->hasYield();
4730:
4731:	if ($exprType->isCallable()->yes()) {
4732:	$acceptors = $exprType->getCallableParametersAcceptors($scope);
4733:	if (count($acceptors) === 1) {
4734:	$scope = $this->processImmediatelyCalledCallable($scope, $acceptors[0]->getInvalidateExpressions(), $acceptors[0]->getUsedVariables());
4735:	if ($callCallbackImmediately) {
4736:	$callableThrowPoints = array_map(static fn (SimpleThrowPoint $throwPoint) => $throwPoint->isExplicit() ? ThrowPoint::createExplicit($scope, $throwPoint->getType(), $arg->value, $throwPoint->canContainAnyThrowable()) : ThrowPoint::createImplicit($scope, $arg->value), $acceptors[0]->getThrowPoints());
4737:	if (!$this->implicitThrows) {
4738:	$callableThrowPoints = array_values(array_filter($callableThrowPoints, static fn (ThrowPoint $throwPoint) => $throwPoint->isExplicit()));
4739:	}
4740:	$throwPoints = array_merge($throwPoints, $callableThrowPoints);
4741:	$impurePoints = array_merge($impurePoints, array_map(static fn (SimpleImpurePoint $impurePoint) => new ImpurePoint($scope, $arg->value, $impurePoint->getIdentifier(), $impurePoint->getDescription(), $impurePoint->isCertain()), $acceptors[0]->getImpurePoints()));
4742:	}
4743:	}
4744:	}
4745:	}
4746:
4747:	if ($assignByReference && $lookForUnset) {
4748:	$scope = $this->lookForUnsetAllowedUndefinedExpressions($scope, $arg->value);
4749:	}
4750:
4751:	if ($calleeReflection !== null) {
4752:	$scope = $scope->popInFunctionCall();
4753:	}
4754:
4755:	if ($i !== 0 \|\| $closureBindScope === null) {
4756:	continue;
4757:	}
4758:
4759:	$scope = $scope->restoreOriginalScopeAfterClosureBind($originalScope);
4760:	}
4761:	foreach ($args as $i => $arg) {
4762:	if (!isset($parameters) \|\| $parametersAcceptor === null) {
4763:	continue;
4764:	}
4765:
4766:	$byRefType = new MixedType();
4767:	$assignByReference = false;
4768:	$currentParameter = null;
4769:	if (isset($parameters[$i])) {
4770:	$currentParameter = $parameters[$i];
4771:	} elseif (count($parameters) > 0 && $parametersAcceptor->isVariadic()) {
4772:	$currentParameter = $parameters[count($parameters) - 1];
4773:	}
4774:
4775:	if ($currentParameter !== null) {
4776:	$assignByReference = $currentParameter->passedByReference()->createsNewVariable();
4777:	if ($assignByReference) {
4778:	if ($currentParameter instanceof ExtendedParameterReflection && $currentParameter->getOutType() !== null) {
4779:	$byRefType = $currentParameter->getOutType();
4780:	} elseif (
4781:	$calleeReflection instanceof MethodReflection
4782:	&& !$calleeReflection->getDeclaringClass()->isBuiltin()
4783:	) {
4784:	$byRefType = $currentParameter->getType();
4785:	} elseif (
4786:	$calleeReflection instanceof FunctionReflection
4787:	&& !$calleeReflection->isBuiltin()
4788:	) {
4789:	$byRefType = $currentParameter->getType();
4790:	}
4791:	}
4792:	}
4793:
4794:	if ($assignByReference) {
4795:	if ($currentParameter === null) {
4796:	throw new ShouldNotHappenException();
4797:	}
4798:
4799:	$argValue = $arg->value;
4800:	if (!$argValue instanceof Variable \|\| $argValue->name !== 'this') {
4801:	$paramOutType = $this->getParameterOutExtensionsType($callLike, $calleeReflection, $currentParameter, $scope);
4802:	if ($paramOutType !== null) {
4803:	$byRefType = $paramOutType;
4804:	}
4805:
4806:	$result = $this->processAssignVar(
4807:	$scope,
4808:	$stmt,
4809:	$argValue,
4810:	new TypeExpr($byRefType),
4811:	static function (Node $node, Scope $scope) use ($nodeCallback): void {
4812:	if (!$node instanceof PropertyAssignNode && !$node instanceof VariableAssignNode) {
4813:	return;
4814:	}
4815:
4816:	$nodeCallback($node, $scope);
4817:	},
4818:	$context,
4819:	static fn (MutatingScope $scope): ExpressionResult => new ExpressionResult($scope, false, [], []),
4820:	true,
4821:	);
4822:	$scope = $result->getScope();
4823:	}
4824:	} elseif ($calleeReflection !== null && $calleeReflection->hasSideEffects()->yes()) {
4825:	$argType = $scope->getType($arg->value);
4826:	if (!$argType->isObject()->no()) {
4827:	$nakedReturnType = null;
4828:	if ($nakedMethodReflection !== null) {
4829:	$nakedParametersAcceptor = ParametersAcceptorSelector::selectFromArgs(
4830:	$scope,
4831:	$args,
4832:	$nakedMethodReflection->getVariants(),
4833:	$nakedMethodReflection->getNamedArgumentsVariants(),
4834:	);
4835:	$nakedReturnType = $nakedParametersAcceptor->getReturnType();
4836:	}
4837:	if (
4838:	$nakedReturnType === null
4839:	\|\| !(new ThisType($nakedMethodReflection->getDeclaringClass()))->isSuperTypeOf($nakedReturnType)->yes()
4840:	\|\| $nakedMethodReflection->isPure()->no()
4841:	) {
4842:	$nodeCallback(new InvalidateExprNode($arg->value), $scope);
4843:	$scope = $scope->invalidateExpression($arg->value, true);
4844:	}
4845:	} elseif (!(new ResourceType())->isSuperTypeOf($argType)->no()) {
4846:	$nodeCallback(new InvalidateExprNode($arg->value), $scope);
4847:	$scope = $scope->invalidateExpression($arg->value, true);
4848:	}
4849:	}
4850:	}
4851:
4852:	return new ExpressionResult($scope, $hasYield, $throwPoints, $impurePoints);
4853:	}
4854:
4855:	/**
4856:	* @param MethodReflection\|FunctionReflection\|null $calleeReflection
4857:	*/
4858:	private function getParameterTypeFromParameterClosureTypeExtension(CallLike $callLike, $calleeReflection, ParameterReflection $parameter, MutatingScope $scope): ?Type
4859:	{
4860:	if ($callLike instanceof FuncCall && $calleeReflection instanceof FunctionReflection) {
4861:	foreach ($this->parameterClosureTypeExtensionProvider->getFunctionParameterClosureTypeExtensions() as $functionParameterClosureTypeExtension) {
4862:	if ($functionParameterClosureTypeExtension->isFunctionSupported($calleeReflection, $parameter)) {
4863:	return $functionParameterClosureTypeExtension->getTypeFromFunctionCall($calleeReflection, $callLike, $parameter, $scope);
4864:	}
4865:	}
4866:	} elseif ($calleeReflection instanceof MethodReflection) {
4867:	if ($callLike instanceof StaticCall) {
4868:	foreach ($this->parameterClosureTypeExtensionProvider->getStaticMethodParameterClosureTypeExtensions() as $staticMethodParameterClosureTypeExtension) {
4869:	if ($staticMethodParameterClosureTypeExtension->isStaticMethodSupported($calleeReflection, $parameter)) {
4870:	return $staticMethodParameterClosureTypeExtension->getTypeFromStaticMethodCall($calleeReflection, $callLike, $parameter, $scope);
4871:	}
4872:	}
4873:	} elseif ($callLike instanceof MethodCall) {
4874:	foreach ($this->parameterClosureTypeExtensionProvider->getMethodParameterClosureTypeExtensions() as $methodParameterClosureTypeExtension) {
4875:	if ($methodParameterClosureTypeExtension->isMethodSupported($calleeReflection, $parameter)) {
4876:	return $methodParameterClosureTypeExtension->getTypeFromMethodCall($calleeReflection, $callLike, $parameter, $scope);
4877:	}
4878:	}
4879:	}
4880:	}
4881:
4882:	return null;
4883:	}
4884:
4885:	/**
4886:	* @param MethodReflection\|FunctionReflection\|null $calleeReflection
4887:	*/
4888:	private function getParameterOutExtensionsType(CallLike $callLike, $calleeReflection, ParameterReflection $currentParameter, MutatingScope $scope): ?Type
4889:	{
4890:	$paramOutTypes = [];
4891:	if ($callLike instanceof FuncCall && $calleeReflection instanceof FunctionReflection) {
4892:	foreach ($this->parameterOutTypeExtensionProvider->getFunctionParameterOutTypeExtensions() as $functionParameterOutTypeExtension) {
4893:	if (!$functionParameterOutTypeExtension->isFunctionSupported($calleeReflection, $currentParameter)) {
4894:	continue;
4895:	}
4896:
4897:	$resolvedType = $functionParameterOutTypeExtension->getParameterOutTypeFromFunctionCall($calleeReflection, $callLike, $currentParameter, $scope);
4898:	if ($resolvedType === null) {
4899:	continue;
4900:	}
4901:	$paramOutTypes[] = $resolvedType;
4902:	}
4903:	} elseif ($callLike instanceof MethodCall && $calleeReflection instanceof MethodReflection) {
4904:	foreach ($this->parameterOutTypeExtensionProvider->getMethodParameterOutTypeExtensions() as $methodParameterOutTypeExtension) {
4905:	if (!$methodParameterOutTypeExtension->isMethodSupported($calleeReflection, $currentParameter)) {
4906:	continue;
4907:	}
4908:
4909:	$resolvedType = $methodParameterOutTypeExtension->getParameterOutTypeFromMethodCall($calleeReflection, $callLike, $currentParameter, $scope);
4910:	if ($resolvedType === null) {
4911:	continue;
4912:	}
4913:	$paramOutTypes[] = $resolvedType;
4914:	}
4915:	} elseif ($callLike instanceof StaticCall && $calleeReflection instanceof MethodReflection) {
4916:	foreach ($this->parameterOutTypeExtensionProvider->getStaticMethodParameterOutTypeExtensions() as $staticMethodParameterOutTypeExtension) {
4917:	if (!$staticMethodParameterOutTypeExtension->isStaticMethodSupported($calleeReflection, $currentParameter)) {
4918:	continue;
4919:	}
4920:
4921:	$resolvedType = $staticMethodParameterOutTypeExtension->getParameterOutTypeFromStaticMethodCall($calleeReflection, $callLike, $currentParameter, $scope);
4922:	if ($resolvedType === null) {
4923:	continue;
4924:	}
4925:	$paramOutTypes[] = $resolvedType;
4926:	}
4927:	}
4928:
4929:	if (count($paramOutTypes) === 1) {
4930:	return $paramOutTypes[0];
4931:	}
4932:
4933:	if (count($paramOutTypes) > 1) {
4934:	return TypeCombinator::union(...$paramOutTypes);
4935:	}
4936:
4937:	return null;
4938:	}
4939:
4940:	/**
4941:	* @param callable(Node $node, Scope $scope): void $nodeCallback
4942:	* @param Closure(MutatingScope $scope): ExpressionResult $processExprCallback
4943:	*/
4944:	private function processAssignVar(
4945:	MutatingScope $scope,
4946:	Node\Stmt $stmt,
4947:	Expr $var,
4948:	Expr $assignedExpr,
4949:	callable $nodeCallback,
4950:	ExpressionContext $context,
4951:	Closure $processExprCallback,
4952:	bool $enterExpressionAssign,
4953:	): ExpressionResult
4954:	{
4955:	$nodeCallback($var, $enterExpressionAssign ? $scope->enterExpressionAssign($var) : $scope);
4956:	$hasYield = false;
4957:	$throwPoints = [];
4958:	$impurePoints = [];
4959:	$isAssignOp = $assignedExpr instanceof Expr\AssignOp && !$enterExpressionAssign;
4960:	if ($var instanceof Variable && is_string($var->name)) {
4961:	$result = $processExprCallback($scope);
4962:	$hasYield = $result->hasYield();
4963:	$throwPoints = $result->getThrowPoints();
4964:	$impurePoints = $result->getImpurePoints();
4965:	if (in_array($var->name, Scope::SUPERGLOBAL_VARIABLES, true)) {
4966:	$impurePoints[] = new ImpurePoint($scope, $var, 'superglobal', 'assign to superglobal variable', true);
4967:	}
4968:	$assignedExpr = $this->unwrapAssign($assignedExpr);
4969:	$type = $scope->getType($assignedExpr);
4970:
4971:	$conditionalExpressions = [];
4972:	if ($assignedExpr instanceof Ternary) {
4973:	$if = $assignedExpr->if;
4974:	if ($if === null) {
4975:	$if = $assignedExpr->cond;
4976:	}
4977:	$condScope = $this->processExprNode($stmt, $assignedExpr->cond, $scope, static function (): void {
4978:	}, ExpressionContext::createDeep())->getScope();
4979:	$truthySpecifiedTypes = $this->typeSpecifier->specifyTypesInCondition($condScope, $assignedExpr->cond, TypeSpecifierContext::createTruthy());
4980:	$falseySpecifiedTypes = $this->typeSpecifier->specifyTypesInCondition($condScope, $assignedExpr->cond, TypeSpecifierContext::createFalsey());
4981:	$truthyScope = $condScope->filterBySpecifiedTypes($truthySpecifiedTypes);
4982:	$falsyScope = $condScope->filterBySpecifiedTypes($falseySpecifiedTypes);
4983:	$truthyType = $truthyScope->getType($if);
4984:	$falseyType = $falsyScope->getType($assignedExpr->else);
4985:
4986:	if (
4987:	$truthyType->isSuperTypeOf($falseyType)->no()
4988:	&& $falseyType->isSuperTypeOf($truthyType)->no()
4989:	) {
4990:	$conditionalExpressions = $this->processSureTypesForConditionalExpressionsAfterAssign($condScope, $var->name, $conditionalExpressions, $truthySpecifiedTypes, $truthyType);
4991:	$conditionalExpressions = $this->processSureNotTypesForConditionalExpressionsAfterAssign($condScope, $var->name, $conditionalExpressions, $truthySpecifiedTypes, $truthyType);
4992:	$conditionalExpressions = $this->processSureTypesForConditionalExpressionsAfterAssign($condScope, $var->name, $conditionalExpressions, $falseySpecifiedTypes, $falseyType);
4993:	$conditionalExpressions = $this->processSureNotTypesForConditionalExpressionsAfterAssign($condScope, $var->name, $conditionalExpressions, $falseySpecifiedTypes, $falseyType);
4994:	}
4995:	}
4996:
4997:	$scope = $result->getScope();
4998:	$truthySpecifiedTypes = $this->typeSpecifier->specifyTypesInCondition($scope, $assignedExpr, TypeSpecifierContext::createTruthy());
4999:	$falseySpecifiedTypes = $this->typeSpecifier->specifyTypesInCondition($scope, $assignedExpr, TypeSpecifierContext::createFalsey());
5000:
5001:	$truthyType = TypeCombinator::removeFalsey($type);
5002:	$falseyType = TypeCombinator::intersect($type, StaticTypeFactory::falsey());
5003:
5004:	$conditionalExpressions = $this->processSureTypesForConditionalExpressionsAfterAssign($scope, $var->name, $conditionalExpressions, $truthySpecifiedTypes, $truthyType);
5005:	$conditionalExpressions = $this->processSureNotTypesForConditionalExpressionsAfterAssign($scope, $var->name, $conditionalExpressions, $truthySpecifiedTypes, $truthyType);
5006:	$conditionalExpressions = $this->processSureTypesForConditionalExpressionsAfterAssign($scope, $var->name, $conditionalExpressions, $falseySpecifiedTypes, $falseyType);
5007:	$conditionalExpressions = $this->processSureNotTypesForConditionalExpressionsAfterAssign($scope, $var->name, $conditionalExpressions, $falseySpecifiedTypes, $falseyType);
5008:
5009:	$nodeCallback(new VariableAssignNode($var, $assignedExpr, $isAssignOp), $result->getScope());
5010:	$scope = $scope->assignVariable($var->name, $type, $scope->getNativeType($assignedExpr), TrinaryLogic::createYes());
5011:	foreach ($conditionalExpressions as $exprString => $holders) {
5012:	$scope = $scope->addConditionalExpressions($exprString, $holders);
5013:	}
5014:	} elseif ($var instanceof ArrayDimFetch) {
5015:	$dimFetchStack = [];
5016:	$originalVar = $var;
5017:	$assignedPropertyExpr = $assignedExpr;
5018:	while ($var instanceof ArrayDimFetch) {
5019:	$varForSetOffsetValue = $var->var;
5020:	if ($varForSetOffsetValue instanceof PropertyFetch \|\| $varForSetOffsetValue instanceof StaticPropertyFetch) {
5021:	$varForSetOffsetValue = new OriginalPropertyTypeExpr($varForSetOffsetValue);
5022:	}
5023:	$assignedPropertyExpr = new SetOffsetValueTypeExpr(
5024:	$varForSetOffsetValue,
5025:	$var->dim,
5026:	$assignedPropertyExpr,
5027:	);
5028:	$dimFetchStack[] = $var;
5029:	$var = $var->var;
5030:	}
5031:
5032:	// 1. eval root expr
5033:	if ($enterExpressionAssign) {
5034:	$scope = $scope->enterExpressionAssign($var);
5035:	}
5036:	$result = $this->processExprNode($stmt, $var, $scope, $nodeCallback, $context->enterDeep());
5037:	$hasYield = $result->hasYield();
5038:	$throwPoints = $result->getThrowPoints();
5039:	$impurePoints = $result->getImpurePoints();
5040:	$scope = $result->getScope();
5041:	if ($enterExpressionAssign) {
5042:	$scope = $scope->exitExpressionAssign($var);
5043:	}
5044:
5045:	// 2. eval dimensions
5046:	$offsetTypes = [];
5047:	$offsetNativeTypes = [];
5048:	$dimFetchStack = array_reverse($dimFetchStack);
5049:	$lastDimKey = array_key_last($dimFetchStack);
5050:	foreach ($dimFetchStack as $key => $dimFetch) {
5051:	$dimExpr = $dimFetch->dim;
5052:
5053:	// Callback was already called for last dim at the beginning of the method.
5054:	if ($key !== $lastDimKey) {
5055:	$nodeCallback($dimFetch, $enterExpressionAssign ? $scope->enterExpressionAssign($dimFetch) : $scope);
5056:	}
5057:
5058:	if ($dimExpr === null) {
5059:	$offsetTypes[] = null;
5060:	$offsetNativeTypes[] = null;
5061:
5062:	} else {
5063:	$offsetTypes[] = $scope->getType($dimExpr);
5064:	$offsetNativeTypes[] = $scope->getNativeType($dimExpr);
5065:
5066:	if ($enterExpressionAssign) {
5067:	$scope->enterExpressionAssign($dimExpr);
5068:	}
5069:	$result = $this->processExprNode($stmt, $dimExpr, $scope, $nodeCallback, $context->enterDeep());
5070:	$hasYield = $hasYield \|\| $result->hasYield();
5071:	$throwPoints = array_merge($throwPoints, $result->getThrowPoints());
5072:	$scope = $result->getScope();
5073:
5074:	if ($enterExpressionAssign) {
5075:	$scope = $scope->exitExpressionAssign($dimExpr);
5076:	}
5077:	}
5078:	}
5079:
5080:	$valueToWrite = $scope->getType($assignedExpr);
5081:	$nativeValueToWrite = $scope->getNativeType($assignedExpr);
5082:	$originalValueToWrite = $valueToWrite;
5083:	$originalNativeValueToWrite = $nativeValueToWrite;
5084:
5085:	// 3. eval assigned expr
5086:	$result = $processExprCallback($scope);
5087:	$hasYield = $hasYield \|\| $result->hasYield();
5088:	$throwPoints = array_merge($throwPoints, $result->getThrowPoints());
5089:	$impurePoints = array_merge($impurePoints, $result->getImpurePoints());
5090:	$scope = $result->getScope();
5091:
5092:	$varType = $scope->getType($var);
5093:	$varNativeType = $scope->getNativeType($var);
5094:
5095:	// 4. compose types
5096:	if ($varType instanceof ErrorType) {
5097:	$varType = new ConstantArrayType([], []);
5098:	}
5099:	if ($varNativeType instanceof ErrorType) {
5100:	$varNativeType = new ConstantArrayType([], []);
5101:	}
5102:	$offsetValueType = $varType;
5103:	$offsetNativeValueType = $varNativeType;
5104:
5105:	$valueToWrite = $this->produceArrayDimFetchAssignValueToWrite($offsetTypes, $offsetValueType, $valueToWrite);
5106:
5107:	if (!$offsetValueType->equals($offsetNativeValueType) \|\| !$valueToWrite->equals($nativeValueToWrite)) {
5108:	$nativeValueToWrite = $this->produceArrayDimFetchAssignValueToWrite($offsetNativeTypes, $offsetNativeValueType, $nativeValueToWrite);
5109:	} else {
5110:	$rewritten = false;
5111:	foreach ($offsetTypes as $i => $offsetType) {
5112:	$offsetNativeType = $offsetNativeTypes[$i];
5113:	if ($offsetType === null) {
5114:	if ($offsetNativeType !== null) {
5115:	throw new ShouldNotHappenException();
5116:	}
5117:
5118:	continue;
5119:	} elseif ($offsetNativeType === null) {
5120:	throw new ShouldNotHappenException();
5121:	}
5122:	if ($offsetType->equals($offsetNativeType)) {
5123:	continue;
5124:	}
5125:
5126:	$nativeValueToWrite = $this->produceArrayDimFetchAssignValueToWrite($offsetNativeTypes, $offsetNativeValueType, $nativeValueToWrite);
5127:	$rewritten = true;
5128:	break;
5129:	}
5130:
5131:	if (!$rewritten) {
5132:	$nativeValueToWrite = $valueToWrite;
5133:	}
5134:	}
5135:
5136:	if ($varType->isArray()->yes() \|\| !(new ObjectType(ArrayAccess::class))->isSuperTypeOf($varType)->yes()) {
5137:	if ($var instanceof Variable && is_string($var->name)) {
5138:	$nodeCallback(new VariableAssignNode($var, $assignedPropertyExpr, $isAssignOp), $scope);
5139:	$scope = $scope->assignVariable($var->name, $valueToWrite, $nativeValueToWrite, TrinaryLogic::createYes());
5140:	} else {
5141:	if ($var instanceof PropertyFetch \|\| $var instanceof StaticPropertyFetch) {
5142:	$nodeCallback(new PropertyAssignNode($var, $assignedPropertyExpr, $isAssignOp), $scope);
5143:	if ($var instanceof PropertyFetch && $var->name instanceof Node\Identifier && !$isAssignOp) {
5144:	$scope = $scope->assignInitializedProperty($scope->getType($var->var), $var->name->toString());
5145:	}
5146:	}
5147:	$scope = $scope->assignExpression(
5148:	$var,
5149:	$valueToWrite,
5150:	$nativeValueToWrite,
5151:	);
5152:	}
5153:
5154:	if ($originalVar->dim instanceof Variable \|\| $originalVar->dim instanceof Node\Scalar) {
5155:	$currentVarType = $scope->getType($originalVar);
5156:	if (!$originalValueToWrite->isSuperTypeOf($currentVarType)->yes()) {
5157:	$scope = $scope->assignExpression(
5158:	$originalVar,
5159:	$originalValueToWrite,
5160:	$originalNativeValueToWrite,
5161:	);
5162:	}
5163:	}
5164:	} else {
5165:	if ($var instanceof Variable) {
5166:	$nodeCallback(new VariableAssignNode($var, $assignedPropertyExpr, $isAssignOp), $scope);
5167:	} elseif ($var instanceof PropertyFetch \|\| $var instanceof StaticPropertyFetch) {
5168:	$nodeCallback(new PropertyAssignNode($var, $assignedPropertyExpr, $isAssignOp), $scope);
5169:	if ($var instanceof PropertyFetch && $var->name instanceof Node\Identifier && !$isAssignOp) {
5170:	$scope = $scope->assignInitializedProperty($scope->getType($var->var), $var->name->toString());
5171:	}
5172:	}
5173:	}
5174:
5175:	if (!$varType->isArray()->yes() && !(new ObjectType(ArrayAccess::class))->isSuperTypeOf($varType)->no()) {
5176:	$throwPoints = array_merge($throwPoints, $this->processExprNode(
5177:	$stmt,
5178:	new MethodCall($var, 'offsetSet'),
5179:	$scope,
5180:	static function (): void {
5181:	},
5182:	$context,
5183:	)->getThrowPoints());
5184:	}
5185:	} elseif ($var instanceof PropertyFetch) {
5186:	$objectResult = $this->processExprNode($stmt, $var->var, $scope, $nodeCallback, $context);
5187:	$hasYield = $objectResult->hasYield();
5188:	$throwPoints = $objectResult->getThrowPoints();
5189:	$impurePoints = $objectResult->getImpurePoints();
5190:	$scope = $objectResult->getScope();
5191:
5192:	$propertyName = null;
5193:	if ($var->name instanceof Node\Identifier) {
5194:	$propertyName = $var->name->name;
5195:	} else {
5196:	$propertyNameResult = $this->processExprNode($stmt, $var->name, $scope, $nodeCallback, $context);
5197:	$hasYield = $hasYield \|\| $propertyNameResult->hasYield();
5198:	$throwPoints = array_merge($throwPoints, $propertyNameResult->getThrowPoints());
5199:	$impurePoints = array_merge($impurePoints, $propertyNameResult->getImpurePoints());
5200:	$scope = $propertyNameResult->getScope();
5201:	}
5202:
5203:	$result = $processExprCallback($scope);
5204:	$hasYield = $hasYield \|\| $result->hasYield();
5205:	$throwPoints = array_merge($throwPoints, $result->getThrowPoints());
5206:	$impurePoints = array_merge($impurePoints, $result->getImpurePoints());
5207:	$scope = $result->getScope();
5208:
5209:	$propertyHolderType = $scope->getType($var->var);
5210:	if ($propertyName !== null && $propertyHolderType->hasProperty($propertyName)->yes()) {
5211:	$propertyReflection = $propertyHolderType->getProperty($propertyName, $scope);
5212:	$assignedExprType = $scope->getType($assignedExpr);
5213:	$nodeCallback(new PropertyAssignNode($var, $assignedExpr, $isAssignOp), $scope);
5214:	if ($propertyReflection->canChangeTypeAfterAssignment()) {
5215:	$scope = $scope->assignExpression($var, $assignedExprType, $scope->getNativeType($assignedExpr));
5216:	}
5217:	$declaringClass = $propertyReflection->getDeclaringClass();
5218:	if ($declaringClass->hasNativeProperty($propertyName)) {
5219:	$nativeProperty = $declaringClass->getNativeProperty($propertyName);
5220:	if (
5221:	!$nativeProperty->getNativeType()->accepts($assignedExprType, true)->yes()
5222:	) {
5223:	$throwPoints[] = ThrowPoint::createExplicit($scope, new ObjectType(TypeError::class), $assignedExpr, false);
5224:	}
5225:	if ($enterExpressionAssign) {
5226:	$scope = $scope->assignInitializedProperty($propertyHolderType, $propertyName);
5227:	}
5228:	}
5229:	} else {
5230:	// fallback
5231:	$assignedExprType = $scope->getType($assignedExpr);
5232:	$nodeCallback(new PropertyAssignNode($var, $assignedExpr, $isAssignOp), $scope);
5233:	$scope = $scope->assignExpression($var, $assignedExprType, $scope->getNativeType($assignedExpr));
5234:	// simulate dynamic property assign by __set to get throw points
5235:	if (!$propertyHolderType->hasMethod('__set')->no()) {
5236:	$throwPoints = array_merge($throwPoints, $this->processExprNode(
5237:	$stmt,
5238:	new MethodCall($var->var, '__set'),
5239:	$scope,
5240:	static function (): void {
5241:	},
5242:	$context,
5243:	)->getThrowPoints());
5244:	}
5245:	}
5246:
5247:	} elseif ($var instanceof Expr\StaticPropertyFetch) {
5248:	if ($var->class instanceof Node\Name) {
5249:	$propertyHolderType = $scope->resolveTypeByName($var->class);
5250:	} else {
5251:	$this->processExprNode($stmt, $var->class, $scope, $nodeCallback, $context);
5252:	$propertyHolderType = $scope->getType($var->class);
5253:	}
5254:
5255:	$propertyName = null;
5256:	if ($var->name instanceof Node\Identifier) {
5257:	$propertyName = $var->name->name;
5258:	} else {
5259:	$propertyNameResult = $this->processExprNode($stmt, $var->name, $scope, $nodeCallback, $context);
5260:	$hasYield = $propertyNameResult->hasYield();
5261:	$throwPoints = $propertyNameResult->getThrowPoints();
5262:	$impurePoints = $propertyNameResult->getImpurePoints();
5263:	$scope = $propertyNameResult->getScope();
5264:	}
5265:
5266:	$result = $processExprCallback($scope);
5267:	$hasYield = $hasYield \|\| $result->hasYield();
5268:	$throwPoints = array_merge($throwPoints, $result->getThrowPoints());
5269:	$impurePoints = array_merge($impurePoints, $result->getImpurePoints());
5270:	$scope = $result->getScope();
5271:
5272:	if ($propertyName !== null) {
5273:	$propertyReflection = $scope->getPropertyReflection($propertyHolderType, $propertyName);
5274:	$assignedExprType = $scope->getType($assignedExpr);
5275:	$nodeCallback(new PropertyAssignNode($var, $assignedExpr, $isAssignOp), $scope);
5276:	if ($propertyReflection !== null && $propertyReflection->canChangeTypeAfterAssignment()) {
5277:	$scope = $scope->assignExpression($var, $assignedExprType, $scope->getNativeType($assignedExpr));
5278:	}
5279:	} else {
5280:	// fallback
5281:	$assignedExprType = $scope->getType($assignedExpr);
5282:	$nodeCallback(new PropertyAssignNode($var, $assignedExpr, $isAssignOp), $scope);
5283:	$scope = $scope->assignExpression($var, $assignedExprType, $scope->getNativeType($assignedExpr));
5284:	}
5285:	} elseif ($var instanceof List_) {
5286:	$result = $processExprCallback($scope);
5287:	$hasYield = $result->hasYield();
5288:	$throwPoints = array_merge($throwPoints, $result->getThrowPoints());
5289:	$impurePoints = array_merge($impurePoints, $result->getImpurePoints());
5290:	$scope = $result->getScope();
5291:	foreach ($var->items as $i => $arrayItem) {
5292:	if ($arrayItem === null) {
5293:	continue;
5294:	}
5295:
5296:	$itemScope = $scope;
5297:	if ($enterExpressionAssign) {
5298:	$itemScope = $itemScope->enterExpressionAssign($arrayItem->value);
5299:	}
5300:	$itemScope = $this->lookForSetAllowedUndefinedExpressions($itemScope, $arrayItem->value);
5301:	$nodeCallback($arrayItem, $itemScope);
5302:	if ($arrayItem->key !== null) {
5303:	$keyResult = $this->processExprNode($stmt, $arrayItem->key, $itemScope, $nodeCallback, $context->enterDeep());
5304:	$hasYield = $hasYield \|\| $keyResult->hasYield();
5305:	$throwPoints = array_merge($throwPoints, $keyResult->getThrowPoints());
5306:	$impurePoints = array_merge($impurePoints, $keyResult->getImpurePoints());
5307:	$itemScope = $keyResult->getScope();
5308:	}
5309:
5310:	$valueResult = $this->processExprNode($stmt, $arrayItem->value, $itemScope, $nodeCallback, $context->enterDeep());
5311:	$hasYield = $hasYield \|\| $valueResult->hasYield();
5312:	$throwPoints = array_merge($throwPoints, $valueResult->getThrowPoints());
5313:	$impurePoints = array_merge($impurePoints, $valueResult->getImpurePoints());
5314:
5315:	if ($arrayItem->key === null) {
5316:	$dimExpr = new Node\Scalar\Int_($i);
5317:	} else {
5318:	$dimExpr = $arrayItem->key;
5319:	}
5320:	$result = $this->processAssignVar(
5321:	$scope,
5322:	$stmt,
5323:	$arrayItem->value,
5324:	new GetOffsetValueTypeExpr($assignedExpr, $dimExpr),
5325:	$nodeCallback,
5326:	$context,
5327:	static fn (MutatingScope $scope): ExpressionResult => new ExpressionResult($scope, false, [], []),
5328:	$enterExpressionAssign,
5329:	);
5330:	$scope = $result->getScope();
5331:	$hasYield = $hasYield \|\| $result->hasYield();
5332:	$throwPoints = array_merge($throwPoints, $result->getThrowPoints());
5333:	$impurePoints = array_merge($impurePoints, $result->getImpurePoints());
5334:	}
5335:	} elseif ($var instanceof ExistingArrayDimFetch) {
5336:	$dimFetchStack = [];
5337:	$assignedPropertyExpr = $assignedExpr;
5338:	while ($var instanceof ExistingArrayDimFetch) {
5339:	$varForSetOffsetValue = $var->getVar();
5340:	if ($varForSetOffsetValue instanceof PropertyFetch \|\| $varForSetOffsetValue instanceof StaticPropertyFetch) {
5341:	$varForSetOffsetValue = new OriginalPropertyTypeExpr($varForSetOffsetValue);
5342:	}
5343:	$assignedPropertyExpr = new SetExistingOffsetValueTypeExpr(
5344:	$varForSetOffsetValue,
5345:	$var->getDim(),
5346:	$assignedPropertyExpr,
5347:	);
5348:	$dimFetchStack[] = $var;
5349:	$var = $var->getVar();
5350:	}
5351:
5352:	$offsetTypes = [];
5353:	$offsetNativeTypes = [];
5354:	foreach (array_reverse($dimFetchStack) as $dimFetch) {
5355:	$dimExpr = $dimFetch->getDim();
5356:	$offsetTypes[] = $scope->getType($dimExpr);
5357:	$offsetNativeTypes[] = $scope->getNativeType($dimExpr);
5358:	}
5359:
5360:	$valueToWrite = $scope->getType($assignedExpr);
5361:	$nativeValueToWrite = $scope->getNativeType($assignedExpr);
5362:	$varType = $scope->getType($var);
5363:	$varNativeType = $scope->getNativeType($var);
5364:
5365:	$offsetValueType = $varType;
5366:	$offsetNativeValueType = $varNativeType;
5367:	$offsetValueTypeStack = [$offsetValueType];
5368:	$offsetValueNativeTypeStack = [$offsetNativeValueType];
5369:	foreach (array_slice($offsetTypes, 0, -1) as $offsetType) {
5370:	$offsetValueType = $offsetValueType->getOffsetValueType($offsetType);
5371:	$offsetValueTypeStack[] = $offsetValueType;
5372:	}
5373:	foreach (array_slice($offsetNativeTypes, 0, -1) as $offsetNativeType) {
5374:	$offsetNativeValueType = $offsetNativeValueType->getOffsetValueType($offsetNativeType);
5375:	$offsetValueNativeTypeStack[] = $offsetNativeValueType;
5376:	}
5377:
5378:	foreach (array_reverse($offsetTypes) as $offsetType) {
5379:	/** @var Type $offsetValueType */
5380:	$offsetValueType = array_pop($offsetValueTypeStack);
5381:	$valueToWrite = $offsetValueType->setExistingOffsetValueType($offsetType, $valueToWrite);
5382:	}
5383:	foreach (array_reverse($offsetNativeTypes) as $offsetNativeType) {
5384:	/** @var Type $offsetNativeValueType */
5385:	$offsetNativeValueType = array_pop($offsetValueNativeTypeStack);
5386:	$nativeValueToWrite = $offsetNativeValueType->setExistingOffsetValueType($offsetNativeType, $nativeValueToWrite);
5387:	}
5388:
5389:	if ($var instanceof Variable && is_string($var->name)) {
5390:	$nodeCallback(new VariableAssignNode($var, $assignedPropertyExpr, $isAssignOp), $scope);
5391:	$scope = $scope->assignVariable($var->name, $valueToWrite, $nativeValueToWrite, TrinaryLogic::createYes());
5392:	} else {
5393:	if ($var instanceof PropertyFetch \|\| $var instanceof StaticPropertyFetch) {
5394:	$nodeCallback(new PropertyAssignNode($var, $assignedPropertyExpr, $isAssignOp), $scope);
5395:	}
5396:	$scope = $scope->assignExpression(
5397:	$var,
5398:	$valueToWrite,
5399:	$nativeValueToWrite,
5400:	);
5401:	}
5402:	}
5403:
5404:	return new ExpressionResult($scope, $hasYield, $throwPoints, $impurePoints);
5405:	}
5406:
5407:	/**
5408:	* @param list<Type\|null> $offsetTypes
5409:	*/
5410:	private function produceArrayDimFetchAssignValueToWrite(array $offsetTypes, Type $offsetValueType, Type $valueToWrite): Type
5411:	{
5412:	$offsetValueTypeStack = [$offsetValueType];
5413:	foreach (array_slice($offsetTypes, 0, -1) as $offsetType) {
5414:	if ($offsetType === null) {
5415:	$offsetValueType = new ConstantArrayType([], []);
5416:
5417:	} else {
5418:	$offsetValueType = $offsetValueType->getOffsetValueType($offsetType);
5419:	if ($offsetValueType instanceof ErrorType) {
5420:	$offsetValueType = new ConstantArrayType([], []);
5421:	}
5422:	}
5423:
5424:	$offsetValueTypeStack[] = $offsetValueType;
5425:	}
5426:
5427:	foreach (array_reverse($offsetTypes) as $i => $offsetType) {
5428:	/** @var Type $offsetValueType */
5429:	$offsetValueType = array_pop($offsetValueTypeStack);
5430:	if (!$offsetValueType instanceof MixedType) {
5431:	$types = [
5432:	new ArrayType(new MixedType(), new MixedType()),
5433:	new ObjectType(ArrayAccess::class),
5434:	new NullType(),
5435:	];
5436:	if ($offsetType !== null && $offsetType->isInteger()->yes()) {
5437:	$types[] = new StringType();
5438:	}
5439:	$offsetValueType = TypeCombinator::intersect($offsetValueType, TypeCombinator::union(...$types));
5440:	}
5441:	$valueToWrite = $offsetValueType->setOffsetValueType($offsetType, $valueToWrite, $i === 0);
5442:	}
5443:
5444:	return $valueToWrite;
5445:	}
5446:
5447:	private function unwrapAssign(Expr $expr): Expr
5448:	{
5449:	if ($expr instanceof Assign) {
5450:	return $this->unwrapAssign($expr->expr);
5451:	}
5452:
5453:	return $expr;
5454:	}
5455:
5456:	/**
5457:	* @param array<string, ConditionalExpressionHolder[]> $conditionalExpressions
5458:	* @return array<string, ConditionalExpressionHolder[]>
5459:	*/
5460:	private function processSureTypesForConditionalExpressionsAfterAssign(Scope $scope, string $variableName, array $conditionalExpressions, SpecifiedTypes $specifiedTypes, Type $variableType): array
5461:	{
5462:	foreach ($specifiedTypes->getSureTypes() as $exprString => [$expr, $exprType]) {
5463:	if (!$expr instanceof Variable) {
5464:	continue;
5465:	}
5466:	if (!is_string($expr->name)) {
5467:	continue;
5468:	}
5469:
5470:	if ($expr->name === $variableName) {
5471:	continue;
5472:	}
5473:
5474:	if (!isset($conditionalExpressions[$exprString])) {
5475:	$conditionalExpressions[$exprString] = [];
5476:	}
5477:
5478:	$holder = new ConditionalExpressionHolder([
5479:	'$' . $variableName => ExpressionTypeHolder::createYes(new Variable($variableName), $variableType),
5480:	], ExpressionTypeHolder::createYes(
5481:	$expr,
5482:	TypeCombinator::intersect($scope->getType($expr), $exprType),
5483:	));
5484:	$conditionalExpressions[$exprString][$holder->getKey()] = $holder;
5485:	}
5486:
5487:	return $conditionalExpressions;
5488:	}
5489:
5490:	/**
5491:	* @param array<string, ConditionalExpressionHolder[]> $conditionalExpressions
5492:	* @return array<string, ConditionalExpressionHolder[]>
5493:	*/
5494:	private function processSureNotTypesForConditionalExpressionsAfterAssign(Scope $scope, string $variableName, array $conditionalExpressions, SpecifiedTypes $specifiedTypes, Type $variableType): array
5495:	{
5496:	foreach ($specifiedTypes->getSureNotTypes() as $exprString => [$expr, $exprType]) {
5497:	if (!$expr instanceof Variable) {
5498:	continue;
5499:	}
5500:	if (!is_string($expr->name)) {
5501:	continue;
5502:	}
5503:
5504:	if ($expr->name === $variableName) {
5505:	continue;
5506:	}
5507:
5508:	if (!isset($conditionalExpressions[$exprString])) {
5509:	$conditionalExpressions[$exprString] = [];
5510:	}
5511:
5512:	$holder = new ConditionalExpressionHolder([
5513:	'$' . $variableName => ExpressionTypeHolder::createYes(new Variable($variableName), $variableType),
5514:	], ExpressionTypeHolder::createYes(
5515:	$expr,
5516:	TypeCombinator::remove($scope->getType($expr), $exprType),
5517:	));
5518:	$conditionalExpressions[$exprString][$holder->getKey()] = $holder;
5519:	}
5520:
5521:	return $conditionalExpressions;
5522:	}
5523:
5524:	/**
5525:	* @param callable(Node $node, Scope $scope): void $nodeCallback
5526:	*/
5527:	private function processStmtVarAnnotation(MutatingScope $scope, Node\Stmt $stmt, ?Expr $defaultExpr, callable $nodeCallback): MutatingScope
5528:	{
5529:	$function = $scope->getFunction();
5530:	$variableLessTags = [];
5531:
5532:	foreach ($stmt->getComments() as $comment) {
5533:	if (!$comment instanceof Doc) {
5534:	continue;
5535:	}
5536:
5537:	$resolvedPhpDoc = $this->fileTypeMapper->getResolvedPhpDoc(
5538:	$scope->getFile(),
5539:	$scope->isInClass() ? $scope->getClassReflection()->getName() : null,
5540:	$scope->isInTrait() ? $scope->getTraitReflection()->getName() : null,
5541:	$function !== null ? $function->getName() : null,
5542:	$comment->getText(),
5543:	);
5544:
5545:	$assignedVariable = null;
5546:	if (
5547:	$stmt instanceof Node\Stmt\Expression
5548:	&& ($stmt->expr instanceof Assign \|\| $stmt->expr instanceof AssignRef)
5549:	&& $stmt->expr->var instanceof Variable
5550:	&& is_string($stmt->expr->var->name)
5551:	) {
5552:	$assignedVariable = $stmt->expr->var->name;
5553:	}
5554:
5555:	foreach ($resolvedPhpDoc->getVarTags() as $name => $varTag) {
5556:	if (is_int($name)) {
5557:	$variableLessTags[] = $varTag;
5558:	continue;
5559:	}
5560:
5561:	if ($name === $assignedVariable) {
5562:	continue;
5563:	}
5564:
5565:	$certainty = $scope->hasVariableType($name);
5566:	if ($certainty->no()) {
5567:	continue;
5568:	}
5569:
5570:	if ($scope->isInClass() && $scope->getFunction() === null) {
5571:	continue;
5572:	}
5573:
5574:	if ($scope->canAnyVariableExist()) {
5575:	$certainty = TrinaryLogic::createYes();
5576:	}
5577:
5578:	$variableNode = new Variable($name, $stmt->getAttributes());
5579:	$originalType = $scope->getVariableType($name);
5580:	if (!$originalType->equals($varTag->getType())) {
5581:	$nodeCallback(new VarTagChangedExpressionTypeNode($varTag, $variableNode), $scope);
5582:	}
5583:
5584:	$scope = $scope->assignVariable(
5585:	$name,
5586:	$varTag->getType(),
5587:	$scope->getNativeType($variableNode),
5588:	$certainty,
5589:	);
5590:	}
5591:	}
5592:
5593:	if (count($variableLessTags) === 1 && $defaultExpr !== null) {
5594:	$originalType = $scope->getType($defaultExpr);
5595:	$varTag = $variableLessTags[0];
5596:	if (!$originalType->equals($varTag->getType())) {
5597:	$nodeCallback(new VarTagChangedExpressionTypeNode($varTag, $defaultExpr), $scope);
5598:	}
5599:	$scope = $scope->assignExpression($defaultExpr, $varTag->getType(), new MixedType());
5600:	}
5601:
5602:	return $scope;
5603:	}
5604:
5605:	/**
5606:	* @param array<int, string> $variableNames
5607:	*/
5608:	private function processVarAnnotation(MutatingScope $scope, array $variableNames, Node\Stmt $node, bool &$changed = false): MutatingScope
5609:	{
5610:	$function = $scope->getFunction();
5611:	$varTags = [];
5612:	foreach ($node->getComments() as $comment) {
5613:	if (!$comment instanceof Doc) {
5614:	continue;
5615:	}
5616:
5617:	$resolvedPhpDoc = $this->fileTypeMapper->getResolvedPhpDoc(
5618:	$scope->getFile(),
5619:	$scope->isInClass() ? $scope->getClassReflection()->getName() : null,
5620:	$scope->isInTrait() ? $scope->getTraitReflection()->getName() : null,
5621:	$function !== null ? $function->getName() : null,
5622:	$comment->getText(),
5623:	);
5624:	foreach ($resolvedPhpDoc->getVarTags() as $key => $varTag) {
5625:	$varTags[$key] = $varTag;
5626:	}
5627:	}
5628:
5629:	if (count($varTags) === 0) {
5630:	return $scope;
5631:	}
5632:
5633:	foreach ($variableNames as $variableName) {
5634:	if (!isset($varTags[$variableName])) {
5635:	continue;
5636:	}
5637:
5638:	$variableType = $varTags[$variableName]->getType();
5639:	$changed = true;
5640:	$scope = $scope->assignVariable($variableName, $variableType, new MixedType(), TrinaryLogic::createYes());
5641:	}
5642:
5643:	if (count($variableNames) === 1 && count($varTags) === 1 && isset($varTags[0])) {
5644:	$variableType = $varTags[0]->getType();
5645:	$changed = true;
5646:	$scope = $scope->assignVariable($variableNames[0], $variableType, new MixedType(), TrinaryLogic::createYes());
5647:	}
5648:
5649:	return $scope;
5650:	}
5651:
5652:	private function enterForeach(MutatingScope $scope, MutatingScope $originalScope, Foreach_ $stmt): MutatingScope
5653:	{
5654:	if ($stmt->expr instanceof Variable && is_string($stmt->expr->name)) {
5655:	$scope = $this->processVarAnnotation($scope, [$stmt->expr->name], $stmt);
5656:	}
5657:	$iterateeType = $originalScope->getType($stmt->expr);
5658:	if (
5659:	($stmt->valueVar instanceof Variable && is_string($stmt->valueVar->name))
5660:	&& ($stmt->keyVar === null \|\| ($stmt->keyVar instanceof Variable && is_string($stmt->keyVar->name)))
5661:	) {
5662:	$keyVarName = null;
5663:	if ($stmt->keyVar instanceof Variable && is_string($stmt->keyVar->name)) {
5664:	$keyVarName = $stmt->keyVar->name;
5665:	}
5666:	$scope = $scope->enterForeach(
5667:	$originalScope,
5668:	$stmt->expr,
5669:	$stmt->valueVar->name,
5670:	$keyVarName,
5671:	);
5672:	$vars = [$stmt->valueVar->name];
5673:	if ($keyVarName !== null) {
5674:	$vars[] = $keyVarName;
5675:	}
5676:	} else {
5677:	$scope = $this->processAssignVar(
5678:	$scope,
5679:	$stmt,
5680:	$stmt->valueVar,
5681:	new GetIterableValueTypeExpr($stmt->expr),
5682:	static function (): void {
5683:	},
5684:	ExpressionContext::createDeep(),
5685:	static fn (MutatingScope $scope): ExpressionResult => new ExpressionResult($scope, false, [], []),
5686:	true,
5687:	)->getScope();
5688:	$vars = $this->getAssignedVariables($stmt->valueVar);
5689:	if (
5690:	$stmt->keyVar instanceof Variable && is_string($stmt->keyVar->name)
5691:	) {
5692:	$scope = $scope->enterForeachKey($originalScope, $stmt->expr, $stmt->keyVar->name);
5693:	$vars[] = $stmt->keyVar->name;
5694:	} elseif ($stmt->keyVar !== null) {
5695:	$scope = $this->processAssignVar(
5696:	$scope,
5697:	$stmt,
5698:	$stmt->keyVar,
5699:	new GetIterableKeyTypeExpr($stmt->expr),
5700:	static function (): void {
5701:	},
5702:	ExpressionContext::createDeep(),
5703:	static fn (MutatingScope $scope): ExpressionResult => new ExpressionResult($scope, false, [], []),
5704:	true,
5705:	)->getScope();
5706:	$vars = array_merge($vars, $this->getAssignedVariables($stmt->keyVar));
5707:	}
5708:	}
5709:
5710:	$constantArrays = $iterateeType->getConstantArrays();
5711:	if (
5712:	$stmt->getDocComment() === null
5713:	&& $iterateeType->isConstantArray()->yes()
5714:	&& count($constantArrays) === 1
5715:	&& $stmt->valueVar instanceof Variable && is_string($stmt->valueVar->name)
5716:	&& $stmt->keyVar instanceof Variable && is_string($stmt->keyVar->name)
5717:	) {
5718:	$valueConditionalHolders = [];
5719:	$arrayDimFetchConditionalHolders = [];
5720:	foreach ($constantArrays[0]->getKeyTypes() as $i => $keyType) {
5721:	$valueType = $constantArrays[0]->getValueTypes()[$i];
5722:	$holder = new ConditionalExpressionHolder([
5723:	'$' . $stmt->keyVar->name => ExpressionTypeHolder::createYes(new Variable($stmt->keyVar->name), $keyType),
5724:	], new ExpressionTypeHolder($stmt->valueVar, $valueType, TrinaryLogic::createYes()));
5725:	$valueConditionalHolders[$holder->getKey()] = $holder;
5726:	$arrayDimFetchHolder = new ConditionalExpressionHolder([
5727:	'$' . $stmt->keyVar->name => ExpressionTypeHolder::createYes(new Variable($stmt->keyVar->name), $keyType),
5728:	], new ExpressionTypeHolder(new ArrayDimFetch($stmt->expr, $stmt->keyVar), $valueType, TrinaryLogic::createYes()));
5729:	$arrayDimFetchConditionalHolders[$arrayDimFetchHolder->getKey()] = $arrayDimFetchHolder;
5730:	}
5731:
5732:	$scope = $scope->addConditionalExpressions(
5733:	'$' . $stmt->valueVar->name,
5734:	$valueConditionalHolders,
5735:	);
5736:	if ($stmt->expr instanceof Variable && is_string($stmt->expr->name)) {
5737:	$scope = $scope->addConditionalExpressions(
5738:	sprintf('$%s[$%s]', $stmt->expr->name, $stmt->keyVar->name),
5739:	$arrayDimFetchConditionalHolders,
5740:	);
5741:	}
5742:	}
5743:
5744:	return $this->processVarAnnotation($scope, $vars, $stmt);
5745:	}
5746:
5747:	/**
5748:	* @param callable(Node $node, Scope $scope): void $nodeCallback
5749:	*/
5750:	private function processTraitUse(Node\Stmt\TraitUse $node, MutatingScope $classScope, callable $nodeCallback): void
5751:	{
5752:	$parentTraitNames = [];
5753:	$parent = $classScope->getParentScope();
5754:	while ($parent !== null) {
5755:	if ($parent->isInTrait()) {
5756:	$parentTraitNames[] = $parent->getTraitReflection()->getName();
5757:	}
5758:	$parent = $parent->getParentScope();
5759:	}
5760:
5761:	foreach ($node->traits as $trait) {
5762:	$traitName = (string) $trait;
5763:	if (in_array($traitName, $parentTraitNames, true)) {
5764:	continue;
5765:	}
5766:	if (!$this->reflectionProvider->hasClass($traitName)) {
5767:	continue;
5768:	}
5769:	$traitReflection = $this->reflectionProvider->getClass($traitName);
5770:	$traitFileName = $traitReflection->getFileName();
5771:	if ($traitFileName === null) {
5772:	continue; // trait from eval or from PHP itself
5773:	}
5774:	$fileName = $this->fileHelper->normalizePath($traitFileName);
5775:	if (!isset($this->analysedFiles[$fileName])) {
5776:	continue;
5777:	}
5778:	$adaptations = [];
5779:	foreach ($node->adaptations as $adaptation) {
5780:	if ($adaptation->trait === null) {
5781:	$adaptations[] = $adaptation;
5782:	continue;
5783:	}
5784:	if ($adaptation->trait->toLowerString() !== $trait->toLowerString()) {
5785:	continue;
5786:	}
5787:
5788:	$adaptations[] = $adaptation;
5789:	}
5790:	$parserNodes = $this->parser->parseFile($fileName);
5791:	$this->processNodesForTraitUse($parserNodes, $traitReflection, $classScope, $adaptations, $nodeCallback);
5792:	}
5793:	}
5794:
5795:	/**
5796:	* @param Node[]\|Node\|scalar\|null $node
5797:	* @param Node\Stmt\TraitUseAdaptation[] $adaptations
5798:	* @param callable(Node $node, Scope $scope): void $nodeCallback
5799:	*/
5800:	private function processNodesForTraitUse($node, ClassReflection $traitReflection, MutatingScope $scope, array $adaptations, callable $nodeCallback): void
5801:	{
5802:	if ($node instanceof Node) {
5803:	if ($node instanceof Node\Stmt\Trait_ && $traitReflection->getName() === (string) $node->namespacedName && $traitReflection->getNativeReflection()->getStartLine() === $node->getStartLine()) {
5804:	$methodModifiers = [];
5805:	$methodNames = [];
5806:	foreach ($adaptations as $adaptation) {
5807:	if (!$adaptation instanceof Node\Stmt\TraitUseAdaptation\Alias) {
5808:	continue;
5809:	}
5810:
5811:	$methodName = $adaptation->method->toLowerString();
5812:	if ($adaptation->newModifier !== null) {
5813:	$methodModifiers[$methodName] = $adaptation->newModifier;
5814:	}
5815:
5816:	if ($adaptation->newName === null) {
5817:	continue;
5818:	}
5819:
5820:	$methodNames[$methodName] = $adaptation->newName;
5821:	}
5822:
5823:	$stmts = $node->stmts;
5824:	foreach ($stmts as $i => $stmt) {
5825:	if (!$stmt instanceof Node\Stmt\ClassMethod) {
5826:	continue;
5827:	}
5828:	$methodName = $stmt->name->toLowerString();
5829:	$methodAst = clone $stmt;
5830:	$stmts[$i] = $methodAst;
5831:	if (array_key_exists($methodName, $methodModifiers)) {
5832:	$methodAst->flags = ($methodAst->flags & ~ Modifiers::VISIBILITY_MASK) \| $methodModifiers[$methodName];
5833:	}
5834:
5835:	if (!array_key_exists($methodName, $methodNames)) {
5836:	continue;
5837:	}
5838:
5839:	$methodAst->setAttribute('originalTraitMethodName', $methodAst->name->toLowerString());
5840:	$methodAst->name = $methodNames[$methodName];
5841:	}
5842:
5843:	if (!$scope->isInClass()) {
5844:	throw new ShouldNotHappenException();
5845:	}
5846:	$traitScope = $scope->enterTrait($traitReflection);
5847:	$nodeCallback(new InTraitNode($node, $traitReflection, $scope->getClassReflection()), $traitScope);
5848:	$this->processStmtNodes($node, $stmts, $traitScope, $nodeCallback, StatementContext::createTopLevel());
5849:	return;
5850:	}
5851:	if ($node instanceof Node\Stmt\ClassLike) {
5852:	return;
5853:	}
5854:	if ($node instanceof Node\FunctionLike) {
5855:	return;
5856:	}
5857:	foreach ($node->getSubNodeNames() as $subNodeName) {
5858:	$subNode = $node->{$subNodeName};
5859:	$this->processNodesForTraitUse($subNode, $traitReflection, $scope, $adaptations, $nodeCallback);
5860:	}
5861:	} elseif (is_array($node)) {
5862:	foreach ($node as $subNode) {
5863:	$this->processNodesForTraitUse($subNode, $traitReflection, $scope, $adaptations, $nodeCallback);
5864:	}
5865:	}
5866:	}
5867:
5868:	private function processCalledMethod(MethodReflection $methodReflection): ?MutatingScope
5869:	{
5870:	$declaringClass = $methodReflection->getDeclaringClass();
5871:	if ($declaringClass->isAnonymous()) {
5872:	return null;
5873:	}
5874:	if ($declaringClass->getFileName() === null) {
5875:	return null;
5876:	}
5877:
5878:	$stackName = sprintf('%s::%s', $declaringClass->getName(), $methodReflection->getName());
5879:	if (array_key_exists($stackName, $this->calledMethodResults)) {
5880:	return $this->calledMethodResults[$stackName];
5881:	}
5882:
5883:	if (array_key_exists($stackName, $this->calledMethodStack)) {
5884:	return null;
5885:	}
5886:
5887:	if (count($this->calledMethodStack) > 0) {
5888:	return null;
5889:	}
5890:
5891:	$this->calledMethodStack[$stackName] = true;
5892:
5893:	$fileName = $this->fileHelper->normalizePath($declaringClass->getFileName());
5894:	if (!isset($this->analysedFiles[$fileName])) {
5895:	return null;
5896:	}
5897:	$parserNodes = $this->parser->parseFile($fileName);
5898:
5899:	$returnStatement = null;
5900:	$this->processNodesForCalledMethod($parserNodes, $fileName, $methodReflection, static function (Node $node, Scope $scope) use ($methodReflection, &$returnStatement): void {
5901:	if (!$node instanceof MethodReturnStatementsNode) {
5902:	return;
5903:	}
5904:
5905:	if ($node->getClassReflection()->getName() !== $methodReflection->getDeclaringClass()->getName()) {
5906:	return;
5907:	}
5908:
5909:	if ($returnStatement !== null) {
5910:	return;
5911:	}
5912:
5913:	$returnStatement = $node;
5914:	});
5915:
5916:	$calledMethodEndScope = null;
5917:	if ($returnStatement !== null) {
5918:	foreach ($returnStatement->getExecutionEnds() as $executionEnd) {
5919:	$statementResult = $executionEnd->getStatementResult();
5920:	$endNode = $executionEnd->getNode();
5921:	if ($endNode instanceof Node\Stmt\Expression) {
5922:	$exprType = $statementResult->getScope()->getType($endNode->expr);
5923:	if ($exprType instanceof NeverType && $exprType->isExplicit()) {
5924:	continue;
5925:	}
5926:	}
5927:	if ($calledMethodEndScope === null) {
5928:	$calledMethodEndScope = $statementResult->getScope();
5929:	continue;
5930:	}
5931:
5932:	$calledMethodEndScope = $calledMethodEndScope->mergeWith($statementResult->getScope());
5933:	}
5934:	foreach ($returnStatement->getReturnStatements() as $statement) {
5935:	if ($calledMethodEndScope === null) {
5936:	$calledMethodEndScope = $statement->getScope();
5937:	continue;
5938:	}
5939:
5940:	$calledMethodEndScope = $calledMethodEndScope->mergeWith($statement->getScope());
5941:	}
5942:	}
5943:
5944:	unset($this->calledMethodStack[$stackName]);
5945:
5946:	$this->calledMethodResults[$stackName] = $calledMethodEndScope;
5947:
5948:	return $calledMethodEndScope;
5949:	}
5950:
5951:	/**
5952:	* @param Node[]\|Node\|scalar\|null $node
5953:	* @param callable(Node $node, Scope $scope): void $nodeCallback
5954:	*/
5955:	private function processNodesForCalledMethod($node, string $fileName, MethodReflection $methodReflection, callable $nodeCallback): void
5956:	{
5957:	if ($node instanceof Node) {
5958:	$declaringClass = $methodReflection->getDeclaringClass();
5959:	if (
5960:	$node instanceof Node\Stmt\Class_
5961:	&& $node->namespacedName !== null
5962:	&& $declaringClass->getName() === (string) $node->namespacedName
5963:	&& $declaringClass->getNativeReflection()->getStartLine() === $node->getStartLine()
5964:	) {
5965:
5966:	$stmts = $node->stmts;
5967:	foreach ($stmts as $stmt) {
5968:	if (!$stmt instanceof Node\Stmt\ClassMethod) {
5969:	continue;
5970:	}
5971:
5972:	if ($stmt->name->toString() !== $methodReflection->getName()) {
5973:	continue;
5974:	}
5975:
5976:	if ($stmt->getEndLine() - $stmt->getStartLine() > 50) {
5977:	continue;
5978:	}
5979:
5980:	$scope = $this->scopeFactory->create(ScopeContext::create($fileName))->enterClass($declaringClass);
5981:	$this->processStmtNode($stmt, $scope, $nodeCallback, StatementContext::createTopLevel());
5982:	}
5983:	return;
5984:	}
5985:	if ($node instanceof Node\Stmt\ClassLike) {
5986:	return;
5987:	}
5988:	if ($node instanceof Node\FunctionLike) {
5989:	return;
5990:	}
5991:	foreach ($node->getSubNodeNames() as $subNodeName) {
5992:	$subNode = $node->{$subNodeName};
5993:	$this->processNodesForCalledMethod($subNode, $fileName, $methodReflection, $nodeCallback);
5994:	}
5995:	} elseif (is_array($node)) {
5996:	foreach ($node as $subNode) {
5997:	$this->processNodesForCalledMethod($subNode, $fileName, $methodReflection, $nodeCallback);
5998:	}
5999:	}
6000:	}
6001:
6002:	/**
6003:	* @return array{TemplateTypeMap, array<string, Type>, array<string, bool>, array<string, Type>, ?Type, ?Type, ?string, bool, bool, bool, bool\|null, bool, bool, string\|null, Assertions, ?Type, array<string, Type>, array<(string\|int), VarTag>, bool}
6004:	*/
6005:	public function getPhpDocs(Scope $scope, Node\FunctionLike\|Node\Stmt\Property $node): array
6006:	{
6007:	$templateTypeMap = TemplateTypeMap::createEmpty();
6008:	$phpDocParameterTypes = [];
6009:	$phpDocImmediatelyInvokedCallableParameters = [];
6010:	$phpDocClosureThisTypeParameters = [];
6011:	$phpDocReturnType = null;
6012:	$phpDocThrowType = null;
6013:	$deprecatedDescription = null;
6014:	$isDeprecated = false;
6015:	$isInternal = false;
6016:	$isFinal = false;
6017:	$isPure = null;
6018:	$isAllowedPrivateMutation = false;
6019:	$acceptsNamedArguments = true;
6020:	$isReadOnly = $scope->isInClass() && $scope->getClassReflection()->isImmutable();
6021:	$asserts = Assertions::createEmpty();
6022:	$selfOutType = null;
6023:	$docComment = $node->getDocComment() !== null
6024:	? $node->getDocComment()->getText()
6025:	: null;
6026:
6027:	$file = $scope->getFile();
6028:	$class = $scope->isInClass() ? $scope->getClassReflection()->getName() : null;
6029:	$trait = $scope->isInTrait() ? $scope->getTraitReflection()->getName() : null;
6030:	$resolvedPhpDoc = null;
6031:	$functionName = null;
6032:	$phpDocParameterOutTypes = [];
6033:
6034:	if ($node instanceof Node\Stmt\ClassMethod) {
6035:	if (!$scope->isInClass()) {
6036:	throw new ShouldNotHappenException();
6037:	}
6038:	$functionName = $node->name->name;
6039:	$positionalParameterNames = array_map(static function (Node\Param $param): string {
6040:	if (!$param->var instanceof Variable \|\| !is_string($param->var->name)) {
6041:	throw new ShouldNotHappenException();
6042:	}
6043:
6044:	return $param->var->name;
6045:	}, $node->getParams());
6046:	$resolvedPhpDoc = $this->phpDocInheritanceResolver->resolvePhpDocForMethod(
6047:	$docComment,
6048:	$file,
6049:	$scope->getClassReflection(),
6050:	$trait,
6051:	$node->name->name,
6052:	$positionalParameterNames,
6053:	);
6054:
6055:	if ($node->name->toLowerString() === '__construct') {
6056:	foreach ($node->params as $param) {
6057:	if ($param->flags === 0) {
6058:	continue;
6059:	}
6060:
6061:	if ($param->getDocComment() === null) {
6062:	continue;
6063:	}
6064:
6065:	if (
6066:	!$param->var instanceof Variable
6067:	\|\| !is_string($param->var->name)
6068:	) {
6069:	throw new ShouldNotHappenException();
6070:	}
6071:
6072:	$paramPhpDoc = $this->fileTypeMapper->getResolvedPhpDoc(
6073:	$file,
6074:	$class,
6075:	$trait,
6076:	'__construct',
6077:	$param->getDocComment()->getText(),
6078:	);
6079:	$varTags = $paramPhpDoc->getVarTags();
6080:	if (isset($varTags[0]) && count($varTags) === 1) {
6081:	$phpDocType = $varTags[0]->getType();
6082:	} elseif (isset($varTags[$param->var->name])) {
6083:	$phpDocType = $varTags[$param->var->name]->getType();
6084:	} else {
6085:	continue;
6086:	}
6087:
6088:	$phpDocParameterTypes[$param->var->name] = $phpDocType;
6089:	}
6090:	}
6091:	} elseif ($node instanceof Node\Stmt\Function_) {
6092:	$functionName = trim($scope->getNamespace() . '\\' . $node->name->name, '\\');
6093:	}
6094:
6095:	if ($docComment !== null && $resolvedPhpDoc === null) {
6096:	$resolvedPhpDoc = $this->fileTypeMapper->getResolvedPhpDoc(
6097:	$file,
6098:	$class,
6099:	$trait,
6100:	$functionName,
6101:	$docComment,
6102:	);
6103:	}
6104:
6105:	$varTags = [];
6106:	if ($resolvedPhpDoc !== null) {
6107:	$templateTypeMap = $resolvedPhpDoc->getTemplateTypeMap();
6108:	$phpDocImmediatelyInvokedCallableParameters = $resolvedPhpDoc->getParamsImmediatelyInvokedCallable();
6109:	foreach ($resolvedPhpDoc->getParamTags() as $paramName => $paramTag) {
6110:	if (array_key_exists($paramName, $phpDocParameterTypes)) {
6111:	continue;
6112:	}
6113:	$paramType = $paramTag->getType();
6114:	if ($scope->isInClass()) {
6115:	$paramType = $this->transformStaticType($scope->getClassReflection(), $paramType);
6116:	}
6117:	$phpDocParameterTypes[$paramName] = $paramType;
6118:	}
6119:	foreach ($resolvedPhpDoc->getParamClosureThisTags() as $paramName => $paramClosureThisTag) {
6120:	if (array_key_exists($paramName, $phpDocClosureThisTypeParameters)) {
6121:	continue;
6122:	}
6123:	$paramClosureThisType = $paramClosureThisTag->getType();
6124:	if ($scope->isInClass()) {
6125:	$paramClosureThisType = $this->transformStaticType($scope->getClassReflection(), $paramClosureThisType);
6126:	}
6127:	$phpDocClosureThisTypeParameters[$paramName] = $paramClosureThisType;
6128:	}
6129:
6130:	foreach ($resolvedPhpDoc->getParamOutTags() as $paramName => $paramOutTag) {
6131:	$phpDocParameterOutTypes[$paramName] = $paramOutTag->getType();
6132:	}
6133:	if ($node instanceof Node\FunctionLike) {
6134:	$nativeReturnType = $scope->getFunctionType($node->getReturnType(), false, false);
6135:	$phpDocReturnType = $this->getPhpDocReturnType($resolvedPhpDoc, $nativeReturnType);
6136:	if ($phpDocReturnType !== null && $scope->isInClass()) {
6137:	$phpDocReturnType = $this->transformStaticType($scope->getClassReflection(), $phpDocReturnType);
6138:	}
6139:	}
6140:	$phpDocThrowType = $resolvedPhpDoc->getThrowsTag() !== null ? $resolvedPhpDoc->getThrowsTag()->getType() : null;
6141:	$deprecatedDescription = $resolvedPhpDoc->getDeprecatedTag() !== null ? $resolvedPhpDoc->getDeprecatedTag()->getMessage() : null;
6142:	$isDeprecated = $resolvedPhpDoc->isDeprecated();
6143:	$isInternal = $resolvedPhpDoc->isInternal();
6144:	$isFinal = $resolvedPhpDoc->isFinal();
6145:	$isPure = $resolvedPhpDoc->isPure();
6146:	$isAllowedPrivateMutation = $resolvedPhpDoc->isAllowedPrivateMutation();
6147:	$acceptsNamedArguments = $resolvedPhpDoc->acceptsNamedArguments();
6148:	if ($acceptsNamedArguments && $scope->isInClass()) {
6149:	$acceptsNamedArguments = $scope->getClassReflection()->acceptsNamedArguments();
6150:	}
6151:	$isReadOnly = $isReadOnly \|\| $resolvedPhpDoc->isReadOnly();
6152:	$asserts = Assertions::createFromResolvedPhpDocBlock($resolvedPhpDoc);
6153:	$selfOutType = $resolvedPhpDoc->getSelfOutTag() !== null ? $resolvedPhpDoc->getSelfOutTag()->getType() : null;
6154:	$varTags = $resolvedPhpDoc->getVarTags();
6155:	}
6156:
6157:	return [$templateTypeMap, $phpDocParameterTypes, $phpDocImmediatelyInvokedCallableParameters, $phpDocClosureThisTypeParameters, $phpDocReturnType, $phpDocThrowType, $deprecatedDescription, $isDeprecated, $isInternal, $isFinal, $isPure, $acceptsNamedArguments, $isReadOnly, $docComment, $asserts, $selfOutType, $phpDocParameterOutTypes, $varTags, $isAllowedPrivateMutation];
6158:	}
6159:
6160:	private function transformStaticType(ClassReflection $declaringClass, Type $type): Type
6161:	{
6162:	return TypeTraverser::map($type, static function (Type $type, callable $traverse) use ($declaringClass): Type {
6163:	if ($type instanceof StaticType) {
6164:	$changedType = $type->changeBaseClass($declaringClass);
6165:	if ($declaringClass->isFinal() && !$type instanceof ThisType) {
6166:	$changedType = $changedType->getStaticObjectType();
6167:	}
6168:	return $traverse($changedType);
6169:	}
6170:
6171:	return $traverse($type);
6172:	});
6173:	}
6174:
6175:	private function getPhpDocReturnType(ResolvedPhpDocBlock $resolvedPhpDoc, Type $nativeReturnType): ?Type
6176:	{
6177:	$returnTag = $resolvedPhpDoc->getReturnTag();
6178:
6179:	if ($returnTag === null) {
6180:	return null;
6181:	}
6182:
6183:	$phpDocReturnType = $returnTag->getType();
6184:
6185:	if ($returnTag->isExplicit()) {
6186:	return $phpDocReturnType;
6187:	}
6188:
6189:	if ($nativeReturnType->isSuperTypeOf(TemplateTypeHelper::resolveToBounds($phpDocReturnType))->yes()) {
6190:	return $phpDocReturnType;
6191:	}
6192:
6193:	return null;
6194:	}
6195:
6196:	/**
6197:	* @template T of Node
6198:	* @param array<T> $nodes
6199:	* @return T\|null
6200:	*/
6201:	private function getFirstUnreachableNode(array $nodes, bool $earlyBinding): ?Node
6202:	{
6203:	foreach ($nodes as $node) {
6204:	if ($node instanceof Node\Stmt\Nop) {
6205:	continue;
6206:	}
6207:	if ($earlyBinding && ($node instanceof Node\Stmt\Function_ \|\| $node instanceof Node\Stmt\ClassLike \|\| $node instanceof Node\Stmt\HaltCompiler)) {
6208:	continue;
6209:	}
6210:	return $node;
6211:	}
6212:	return null;
6213:	}
6214:
6215:	}
6216:

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