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 Override;
9:	use PhpParser\Comment\Doc;
10:	use PhpParser\Modifiers;
11:	use PhpParser\Node;
12:	use PhpParser\Node\Arg;
13:	use PhpParser\Node\AttributeGroup;
14:	use PhpParser\Node\ComplexType;
15:	use PhpParser\Node\Expr;
16:	use PhpParser\Node\Expr\Array_;
17:	use PhpParser\Node\Expr\ArrayDimFetch;
18:	use PhpParser\Node\Expr\Assign;
19:	use PhpParser\Node\Expr\AssignRef;
20:	use PhpParser\Node\Expr\BinaryOp;
21:	use PhpParser\Node\Expr\BinaryOp\BooleanAnd;
22:	use PhpParser\Node\Expr\BinaryOp\BooleanOr;
23:	use PhpParser\Node\Expr\BinaryOp\Coalesce;
24:	use PhpParser\Node\Expr\BooleanNot;
25:	use PhpParser\Node\Expr\CallLike;
26:	use PhpParser\Node\Expr\Cast;
27:	use PhpParser\Node\Expr\ConstFetch;
28:	use PhpParser\Node\Expr\ErrorSuppress;
29:	use PhpParser\Node\Expr\Exit_;
30:	use PhpParser\Node\Expr\FuncCall;
31:	use PhpParser\Node\Expr\Instanceof_;
32:	use PhpParser\Node\Expr\List_;
33:	use PhpParser\Node\Expr\MethodCall;
34:	use PhpParser\Node\Expr\New_;
35:	use PhpParser\Node\Expr\PropertyFetch;
36:	use PhpParser\Node\Expr\StaticCall;
37:	use PhpParser\Node\Expr\StaticPropertyFetch;
38:	use PhpParser\Node\Expr\Ternary;
39:	use PhpParser\Node\Expr\Variable;
40:	use PhpParser\Node\Identifier;
41:	use PhpParser\Node\Name;
42:	use PhpParser\Node\Stmt\Break_;
43:	use PhpParser\Node\Stmt\Class_;
44:	use PhpParser\Node\Stmt\Continue_;
45:	use PhpParser\Node\Stmt\Do_;
46:	use PhpParser\Node\Stmt\Echo_;
47:	use PhpParser\Node\Stmt\For_;
48:	use PhpParser\Node\Stmt\Foreach_;
49:	use PhpParser\Node\Stmt\If_;
50:	use PhpParser\Node\Stmt\InlineHTML;
51:	use PhpParser\Node\Stmt\Return_;
52:	use PhpParser\Node\Stmt\Static_;
53:	use PhpParser\Node\Stmt\Switch_;
54:	use PhpParser\Node\Stmt\TryCatch;
55:	use PhpParser\Node\Stmt\Unset_;
56:	use PhpParser\Node\Stmt\While_;
57:	use PhpParser\NodeFinder;
58:	use PhpParser\NodeTraverser;
59:	use PhpParser\NodeVisitor\CloningVisitor;
60:	use PhpParser\NodeVisitorAbstract;
61:	use PHPStan\BetterReflection\Reflection\Adapter\ReflectionClass;
62:	use PHPStan\BetterReflection\Reflection\ReflectionEnum;
63:	use PHPStan\BetterReflection\Reflector\Reflector;
64:	use PHPStan\BetterReflection\SourceLocator\Ast\Strategy\NodeToReflection;
65:	use PHPStan\BetterReflection\SourceLocator\Located\LocatedSource;
66:	use PHPStan\DependencyInjection\AutowiredParameter;
67:	use PHPStan\DependencyInjection\AutowiredService;
68:	use PHPStan\DependencyInjection\Type\DynamicThrowTypeExtensionProvider;
69:	use PHPStan\DependencyInjection\Type\ParameterClosureThisExtensionProvider;
70:	use PHPStan\DependencyInjection\Type\ParameterClosureTypeExtensionProvider;
71:	use PHPStan\DependencyInjection\Type\ParameterOutTypeExtensionProvider;
72:	use PHPStan\File\FileHelper;
73:	use PHPStan\File\FileReader;
74:	use PHPStan\Node\BooleanAndNode;
75:	use PHPStan\Node\BooleanOrNode;
76:	use PHPStan\Node\BreaklessWhileLoopNode;
77:	use PHPStan\Node\CatchWithUnthrownExceptionNode;
78:	use PHPStan\Node\ClassConstantsNode;
79:	use PHPStan\Node\ClassMethodsNode;
80:	use PHPStan\Node\ClassPropertiesNode;
81:	use PHPStan\Node\ClassPropertyNode;
82:	use PHPStan\Node\ClassStatementsGatherer;
83:	use PHPStan\Node\ClosureReturnStatementsNode;
84:	use PHPStan\Node\DoWhileLoopConditionNode;
85:	use PHPStan\Node\ExecutionEndNode;
86:	use PHPStan\Node\Expr\AlwaysRememberedExpr;
87:	use PHPStan\Node\Expr\ExistingArrayDimFetch;
88:	use PHPStan\Node\Expr\ForeachValueByRefExpr;
89:	use PHPStan\Node\Expr\GetIterableKeyTypeExpr;
90:	use PHPStan\Node\Expr\GetIterableValueTypeExpr;
91:	use PHPStan\Node\Expr\GetOffsetValueTypeExpr;
92:	use PHPStan\Node\Expr\NativeTypeExpr;
93:	use PHPStan\Node\Expr\OriginalForeachKeyExpr;
94:	use PHPStan\Node\Expr\OriginalPropertyTypeExpr;
95:	use PHPStan\Node\Expr\PropertyInitializationExpr;
96:	use PHPStan\Node\Expr\SetExistingOffsetValueTypeExpr;
97:	use PHPStan\Node\Expr\SetOffsetValueTypeExpr;
98:	use PHPStan\Node\Expr\TypeExpr;
99:	use PHPStan\Node\Expr\UnsetOffsetExpr;
100:	use PHPStan\Node\FinallyExitPointsNode;
101:	use PHPStan\Node\FunctionCallableNode;
102:	use PHPStan\Node\FunctionReturnStatementsNode;
103:	use PHPStan\Node\InArrowFunctionNode;
104:	use PHPStan\Node\InClassMethodNode;
105:	use PHPStan\Node\InClassNode;
106:	use PHPStan\Node\InClosureNode;
107:	use PHPStan\Node\InForeachNode;
108:	use PHPStan\Node\InFunctionNode;
109:	use PHPStan\Node\InPropertyHookNode;
110:	use PHPStan\Node\InstantiationCallableNode;
111:	use PHPStan\Node\InTraitNode;
112:	use PHPStan\Node\InvalidateExprNode;
113:	use PHPStan\Node\LiteralArrayItem;
114:	use PHPStan\Node\LiteralArrayNode;
115:	use PHPStan\Node\MatchExpressionArm;
116:	use PHPStan\Node\MatchExpressionArmBody;
117:	use PHPStan\Node\MatchExpressionArmCondition;
118:	use PHPStan\Node\MatchExpressionNode;
119:	use PHPStan\Node\MethodCallableNode;
120:	use PHPStan\Node\MethodReturnStatementsNode;
121:	use PHPStan\Node\NoopExpressionNode;
122:	use PHPStan\Node\PropertyAssignNode;
123:	use PHPStan\Node\PropertyHookReturnStatementsNode;
124:	use PHPStan\Node\PropertyHookStatementNode;
125:	use PHPStan\Node\ReturnStatement;
126:	use PHPStan\Node\StaticMethodCallableNode;
127:	use PHPStan\Node\UnreachableStatementNode;
128:	use PHPStan\Node\VariableAssignNode;
129:	use PHPStan\Node\VarTagChangedExpressionTypeNode;
130:	use PHPStan\Parser\ArrowFunctionArgVisitor;
131:	use PHPStan\Parser\ClosureArgVisitor;
132:	use PHPStan\Parser\ImmediatelyInvokedClosureVisitor;
133:	use PHPStan\Parser\LineAttributesVisitor;
134:	use PHPStan\Parser\Parser;
135:	use PHPStan\Parser\ReversePipeTransformerVisitor;
136:	use PHPStan\Php\PhpVersion;
137:	use PHPStan\PhpDoc\PhpDocInheritanceResolver;
138:	use PHPStan\PhpDoc\ResolvedPhpDocBlock;
139:	use PHPStan\PhpDoc\Tag\VarTag;
140:	use PHPStan\Reflection\Assertions;
141:	use PHPStan\Reflection\Callables\CallableParametersAcceptor;
142:	use PHPStan\Reflection\Callables\SimpleImpurePoint;
143:	use PHPStan\Reflection\Callables\SimpleThrowPoint;
144:	use PHPStan\Reflection\ClassReflection;
145:	use PHPStan\Reflection\ClassReflectionFactory;
146:	use PHPStan\Reflection\ExtendedMethodReflection;
147:	use PHPStan\Reflection\ExtendedParameterReflection;
148:	use PHPStan\Reflection\ExtendedParametersAcceptor;
149:	use PHPStan\Reflection\FunctionReflection;
150:	use PHPStan\Reflection\InitializerExprContext;
151:	use PHPStan\Reflection\InitializerExprTypeResolver;
152:	use PHPStan\Reflection\MethodReflection;
153:	use PHPStan\Reflection\Native\NativeMethodReflection;
154:	use PHPStan\Reflection\Native\NativeParameterReflection;
155:	use PHPStan\Reflection\ParameterReflection;
156:	use PHPStan\Reflection\ParametersAcceptor;
157:	use PHPStan\Reflection\ParametersAcceptorSelector;
158:	use PHPStan\Reflection\Php\PhpFunctionFromParserNodeReflection;
159:	use PHPStan\Reflection\Php\PhpMethodFromParserNodeReflection;
160:	use PHPStan\Reflection\Php\PhpMethodReflection;
161:	use PHPStan\Reflection\Php\PhpPropertyReflection;
162:	use PHPStan\Reflection\ReflectionProvider;
163:	use PHPStan\Rules\Properties\ReadWritePropertiesExtensionProvider;
164:	use PHPStan\ShouldNotHappenException;
165:	use PHPStan\TrinaryLogic;
166:	use PHPStan\Type\Accessory\AccessoryArrayListType;
167:	use PHPStan\Type\Accessory\HasOffsetValueType;
168:	use PHPStan\Type\Accessory\NonEmptyArrayType;
169:	use PHPStan\Type\ArrayType;
170:	use PHPStan\Type\ClosureType;
171:	use PHPStan\Type\Constant\ConstantArrayType;
172:	use PHPStan\Type\Constant\ConstantArrayTypeBuilder;
173:	use PHPStan\Type\Constant\ConstantIntegerType;
174:	use PHPStan\Type\Constant\ConstantStringType;
175:	use PHPStan\Type\FileTypeMapper;
176:	use PHPStan\Type\GeneralizePrecision;
177:	use PHPStan\Type\Generic\TemplateTypeHelper;
178:	use PHPStan\Type\Generic\TemplateTypeMap;
179:	use PHPStan\Type\Generic\TemplateTypeVariance;
180:	use PHPStan\Type\Generic\TemplateTypeVarianceMap;
181:	use PHPStan\Type\IntegerType;
182:	use PHPStan\Type\IntersectionType;
183:	use PHPStan\Type\MixedType;
184:	use PHPStan\Type\NeverType;
185:	use PHPStan\Type\NullType;
186:	use PHPStan\Type\ObjectType;
187:	use PHPStan\Type\ObjectWithoutClassType;
188:	use PHPStan\Type\ParserNodeTypeToPHPStanType;
189:	use PHPStan\Type\ResourceType;
190:	use PHPStan\Type\StaticType;
191:	use PHPStan\Type\StaticTypeFactory;
192:	use PHPStan\Type\StringType;
193:	use PHPStan\Type\ThisType;
194:	use PHPStan\Type\Type;
195:	use PHPStan\Type\TypeCombinator;
196:	use PHPStan\Type\TypeTraverser;
197:	use PHPStan\Type\TypeUtils;
198:	use PHPStan\Type\UnionType;
199:	use ReflectionProperty;
200:	use Throwable;
201:	use Traversable;
202:	use TypeError;
203:	use UnhandledMatchError;
204:	use function array_fill_keys;
205:	use function array_filter;
206:	use function array_key_exists;
207:	use function array_key_last;
208:	use function array_keys;
209:	use function array_map;
210:	use function array_merge;
211:	use function array_pop;
212:	use function array_reverse;
213:	use function array_slice;
214:	use function array_values;
215:	use function base64_decode;
216:	use function count;
217:	use function in_array;
218:	use function is_array;
219:	use function is_int;
220:	use function is_string;
221:	use function ksort;
222:	use function sprintf;
223:	use function str_starts_with;
224:	use function strtolower;
225:	use function trim;
226:	use function usort;
227:	use const PHP_VERSION_ID;
228:	use const SORT_NUMERIC;
229:
230:	#[AutowiredService]
231:	final class NodeScopeResolver
232:	{
233:
234:	private const LOOP_SCOPE_ITERATIONS = 3;
235:	private const GENERALIZE_AFTER_ITERATION = 1;
236:
237:	/** @var array<string, true> filePath(string) => bool(true) */
238:	private array $analysedFiles = [];
239:
240:	/** @var array<string, true> */
241:	private array $earlyTerminatingMethodNames;
242:
243:	/** @var array<string, true> */
244:	private array $calledMethodStack = [];
245:
246:	/** @var array<string, MutatingScope\|null> */
247:	private array $calledMethodResults = [];
248:
249:	/**
250:	* @param string[][] $earlyTerminatingMethodCalls className(string) => methods(string[])
251:	* @param array<int, string> $earlyTerminatingFunctionCalls
252:	*/
253:	public function __construct(
254:	private readonly ReflectionProvider $reflectionProvider,
255:	private readonly InitializerExprTypeResolver $initializerExprTypeResolver,
256:	#[AutowiredParameter(ref: '@nodeScopeResolverReflector')]
257:	private readonly Reflector $reflector,
258:	private readonly ClassReflectionFactory $classReflectionFactory,
259:	private readonly ParameterOutTypeExtensionProvider $parameterOutTypeExtensionProvider,
260:	#[AutowiredParameter(ref: '@defaultAnalysisParser')]
261:	private readonly Parser $parser,
262:	private readonly FileTypeMapper $fileTypeMapper,
263:	private readonly PhpVersion $phpVersion,
264:	private readonly PhpDocInheritanceResolver $phpDocInheritanceResolver,
265:	private readonly FileHelper $fileHelper,
266:	private readonly TypeSpecifier $typeSpecifier,
267:	private readonly DynamicThrowTypeExtensionProvider $dynamicThrowTypeExtensionProvider,
268:	private readonly ReadWritePropertiesExtensionProvider $readWritePropertiesExtensionProvider,
269:	private readonly ParameterClosureThisExtensionProvider $parameterClosureThisExtensionProvider,
270:	private readonly ParameterClosureTypeExtensionProvider $parameterClosureTypeExtensionProvider,
271:	private readonly ScopeFactory $scopeFactory,
272:	#[AutowiredParameter]
273:	private readonly bool $polluteScopeWithLoopInitialAssignments,
274:	#[AutowiredParameter]
275:	private readonly bool $polluteScopeWithAlwaysIterableForeach,
276:	#[AutowiredParameter]
277:	private readonly bool $polluteScopeWithBlock,
278:	#[AutowiredParameter]
279:	private readonly array $earlyTerminatingMethodCalls,
280:	#[AutowiredParameter]
281:	private readonly array $earlyTerminatingFunctionCalls,
282:	#[AutowiredParameter(ref: '%exceptions.implicitThrows%')]
283:	private readonly bool $implicitThrows,
284:	#[AutowiredParameter]
285:	private readonly bool $treatPhpDocTypesAsCertain,
286:	private readonly bool $narrowMethodScopeFromConstructor = true,
287:	)
288:	{
289:	$earlyTerminatingMethodNames = [];
290:	foreach ($this->earlyTerminatingMethodCalls as $methodNames) {
291:	foreach ($methodNames as $methodName) {
292:	$earlyTerminatingMethodNames[strtolower($methodName)] = true;
293:	}
294:	}
295:	$this->earlyTerminatingMethodNames = $earlyTerminatingMethodNames;
296:	}
297:
298:	/**
299:	* @api
300:	* @param string[] $files
301:	*/
302:	public function setAnalysedFiles(array $files): void
303:	{
304:	$this->analysedFiles = array_fill_keys($files, true);
305:	}
306:
307:	/**
308:	* @api
309:	* @param Node[] $nodes
310:	* @param callable(Node $node, Scope $scope): void $nodeCallback
311:	*/
312:	public function processNodes(
313:	array $nodes,
314:	MutatingScope $scope,
315:	callable $nodeCallback,
316:	): void
317:	{
318:	$alreadyTerminated = false;
319:	foreach ($nodes as $i => $node) {
320:	if (
321:	!$node instanceof Node\Stmt
322:	\|\| ($alreadyTerminated && !($node instanceof Node\Stmt\Function_ \|\| $node instanceof Node\Stmt\ClassLike))
323:	) {
324:	continue;
325:	}
326:
327:	$statementResult = $this->processStmtNode($node, $scope, $nodeCallback, StatementContext::createTopLevel());
328:	$scope = $statementResult->getScope();
329:	if ($alreadyTerminated \|\| !$statementResult->isAlwaysTerminating()) {
330:	continue;
331:	}
332:
333:	$alreadyTerminated = true;
334:	$nextStmts = $this->getNextUnreachableStatements(array_slice($nodes, $i + 1), true);
335:	$this->processUnreachableStatement($nextStmts, $scope, $nodeCallback);
336:	}
337:	}
338:
339:	/**
340:	* @param Node\Stmt[] $nextStmts
341:	* @param callable(Node $node, Scope $scope): void $nodeCallback
342:	*/
343:	private function processUnreachableStatement(array $nextStmts, MutatingScope $scope, callable $nodeCallback): void
344:	{
345:	if ($nextStmts === []) {
346:	return;
347:	}
348:
349:	$unreachableStatement = null;
350:	$nextStatements = [];
351:
352:	foreach ($nextStmts as $key => $nextStmt) {
353:	if ($key === 0) {
354:	$unreachableStatement = $nextStmt;
355:	continue;
356:	}
357:
358:	$nextStatements[] = $nextStmt;
359:	}
360:
361:	if (!$unreachableStatement instanceof Node\Stmt) {
362:	return;
363:	}
364:
365:	$nodeCallback(new UnreachableStatementNode($unreachableStatement, $nextStatements), $scope);
366:	}
367:
368:	/**
369:	* @api
370:	* @param Node\Stmt[] $stmts
371:	* @param callable(Node $node, Scope $scope): void $nodeCallback
372:	*/
373:	public function processStmtNodes(
374:	Node $parentNode,
375:	array $stmts,
376:	MutatingScope $scope,
377:	callable $nodeCallback,
378:	StatementContext $context,
379:	): StatementResult
380:	{
381:	return $this->processStmtNodesInternal(
382:	$parentNode,
383:	$stmts,
384:	$scope,
385:	$nodeCallback,
386:	$context,
387:	)->toPublic();
388:	}
389:
390:	/**
391:	* @param Node\Stmt[] $stmts
392:	* @param callable(Node $node, Scope $scope): void $nodeCallback
393:	*/
394:	private function processStmtNodesInternal(
395:	Node $parentNode,
396:	array $stmts,
397:	MutatingScope $scope,
398:	callable $nodeCallback,
399:	StatementContext $context,
400:	): InternalStatementResult
401:	{
402:	$exitPoints = [];
403:	$throwPoints = [];
404:	$impurePoints = [];
405:	$alreadyTerminated = false;
406:	$hasYield = false;
407:	$stmtCount = count($stmts);
408:	$shouldCheckLastStatement = $parentNode instanceof Node\Stmt\Function_
409:	\|\| $parentNode instanceof Node\Stmt\ClassMethod
410:	\|\| $parentNode instanceof PropertyHookStatementNode
411:	\|\| $parentNode instanceof Expr\Closure;
412:	foreach ($stmts as $i => $stmt) {
413:	if ($alreadyTerminated && !($stmt instanceof Node\Stmt\Function_ \|\| $stmt instanceof Node\Stmt\ClassLike)) {
414:	continue;
415:	}
416:
417:	$isLast = $i === $stmtCount - 1;
418:	$statementResult = $this->processStmtNode(
419:	$stmt,
420:	$scope,
421:	$nodeCallback,
422:	$context,
423:	);
424:	$scope = $statementResult->getScope();
425:	$hasYield = $hasYield \|\| $statementResult->hasYield();
426:
427:	if ($shouldCheckLastStatement && $isLast) {
428:	$endStatements = $statementResult->getEndStatements();
429:	if (count($endStatements) > 0) {
430:	foreach ($endStatements as $endStatement) {
431:	$endStatementResult = $endStatement->getResult();
432:	$nodeCallback(new ExecutionEndNode(
433:	$endStatement->getStatement(),
434:	(new InternalStatementResult(
435:	$endStatementResult->getScope(),
436:	$hasYield,
437:	$endStatementResult->isAlwaysTerminating(),
438:	$endStatementResult->getExitPoints(),
439:	$endStatementResult->getThrowPoints(),
440:	$endStatementResult->getImpurePoints(),
441:	))->toPublic(),
442:	$parentNode->getReturnType() !== null,
443:	), $endStatementResult->getScope());
444:	}
445:	} else {
446:	$nodeCallback(new ExecutionEndNode(
447:	$stmt,
448:	(new InternalStatementResult(
449:	$scope,
450:	$hasYield,
451:	$statementResult->isAlwaysTerminating(),
452:	$statementResult->getExitPoints(),
453:	$statementResult->getThrowPoints(),
454:	$statementResult->getImpurePoints(),
455:	))->toPublic(),
456:	$parentNode->getReturnType() !== null,
457:	), $scope);
458:	}
459:	}
460:
461:	$exitPoints = array_merge($exitPoints, $statementResult->getExitPoints());
462:	$throwPoints = array_merge($throwPoints, $statementResult->getThrowPoints());
463:	$impurePoints = array_merge($impurePoints, $statementResult->getImpurePoints());
464:
465:	if ($alreadyTerminated \|\| !$statementResult->isAlwaysTerminating()) {
466:	continue;
467:	}
468:
469:	$alreadyTerminated = true;
470:	$nextStmts = $this->getNextUnreachableStatements(array_slice($stmts, $i + 1), $parentNode instanceof Node\Stmt\Namespace_);
471:	$this->processUnreachableStatement($nextStmts, $scope, $nodeCallback);
472:	}
473:
474:	$statementResult = new InternalStatementResult($scope, $hasYield, $alreadyTerminated, $exitPoints, $throwPoints, $impurePoints);
475:	if ($stmtCount === 0 && $shouldCheckLastStatement) {
476:	$returnTypeNode = $parentNode->getReturnType();
477:	if ($parentNode instanceof Expr\Closure) {
478:	$parentNode = new Node\Stmt\Expression($parentNode, $parentNode->getAttributes());
479:	}
480:	$nodeCallback(new ExecutionEndNode(
481:	$parentNode,
482:	$statementResult->toPublic(),
483:	$returnTypeNode !== null,
484:	), $scope);
485:	}
486:
487:	return $statementResult;
488:	}
489:
490:	/**
491:	* @param callable(Node $node, Scope $scope): void $nodeCallback
492:	*/
493:	private function processStmtNode(
494:	Node\Stmt $stmt,
495:	MutatingScope $scope,
496:	callable $nodeCallback,
497:	StatementContext $context,
498:	): InternalStatementResult
499:	{
500:	if (
501:	!$stmt instanceof Static_
502:	&& !$stmt instanceof Foreach_
503:	&& !$stmt instanceof Node\Stmt\Global_
504:	&& !$stmt instanceof Node\Stmt\Property
505:	&& !$stmt instanceof Node\Stmt\ClassConst
506:	&& !$stmt instanceof Node\Stmt\Const_
507:	) {
508:	$scope = $this->processStmtVarAnnotation($scope, $stmt, null, $nodeCallback);
509:	}
510:
511:	if ($stmt instanceof Node\Stmt\ClassMethod) {
512:	if (!$scope->isInClass()) {
513:	throw new ShouldNotHappenException();
514:	}
515:	if (
516:	$scope->isInTrait()
517:	&& $scope->getClassReflection()->hasNativeMethod($stmt->name->toString())
518:	) {
519:	$methodReflection = $scope->getClassReflection()->getNativeMethod($stmt->name->toString());
520:	if ($methodReflection instanceof NativeMethodReflection) {
521:	return new InternalStatementResult($scope, false, false, [], [], []);
522:	}
523:	if ($methodReflection instanceof PhpMethodReflection) {
524:	$declaringTrait = $methodReflection->getDeclaringTrait();
525:	if ($declaringTrait === null \|\| $declaringTrait->getName() !== $scope->getTraitReflection()->getName()) {
526:	return new InternalStatementResult($scope, false, false, [], [], []);
527:	}
528:	}
529:	}
530:	}
531:
532:	$stmtScope = $scope;
533:	if ($stmt instanceof Node\Stmt\Expression && $stmt->expr instanceof Expr\Throw_) {
534:	$stmtScope = $this->processStmtVarAnnotation($scope, $stmt, $stmt->expr->expr, $nodeCallback);
535:	}
536:	if ($stmt instanceof Return_) {
537:	$stmtScope = $this->processStmtVarAnnotation($scope, $stmt, $stmt->expr, $nodeCallback);
538:	}
539:
540:	$nodeCallback($stmt, $stmtScope);
541:
542:	$overridingThrowPoints = $this->getOverridingThrowPoints($stmt, $scope);
543:
544:	if ($stmt instanceof Node\Stmt\Declare_) {
545:	$hasYield = false;
546:	$throwPoints = [];
547:	$impurePoints = [];
548:	$alwaysTerminating = false;
549:	$exitPoints = [];
550:	foreach ($stmt->declares as $declare) {
551:	$nodeCallback($declare, $scope);
552:	$nodeCallback($declare->value, $scope);
553:	if (
554:	$declare->key->name !== 'strict_types'
555:	\|\| !($declare->value instanceof Node\Scalar\Int_)
556:	\|\| $declare->value->value !== 1
557:	) {
558:	continue;
559:	}
560:
561:	$scope = $scope->enterDeclareStrictTypes();
562:	}
563:
564:	if ($stmt->stmts !== null) {
565:	$result = $this->processStmtNodesInternal($stmt, $stmt->stmts, $scope, $nodeCallback, $context);
566:	$scope = $result->getScope();
567:	$hasYield = $result->hasYield();
568:	$throwPoints = $result->getThrowPoints();
569:	$impurePoints = $result->getImpurePoints();
570:	$alwaysTerminating = $result->isAlwaysTerminating();
571:	$exitPoints = $result->getExitPoints();
572:	}
573:
574:	return new InternalStatementResult($scope, $hasYield, $alwaysTerminating, $exitPoints, $throwPoints, $impurePoints);
575:	} elseif ($stmt instanceof Node\Stmt\Function_) {
576:	$hasYield = false;
577:	$throwPoints = [];
578:	$impurePoints = [];
579:	$this->processAttributeGroups($stmt, $stmt->attrGroups, $scope, $nodeCallback);
580:	[$templateTypeMap, $phpDocParameterTypes, $phpDocImmediatelyInvokedCallableParameters, $phpDocClosureThisTypeParameters, $phpDocReturnType, $phpDocThrowType, $deprecatedDescription, $isDeprecated, $isInternal, , $isPure, $acceptsNamedArguments, , $phpDocComment, $asserts,, $phpDocParameterOutTypes] = $this->getPhpDocs($scope, $stmt);
581:
582:	foreach ($stmt->params as $param) {
583:	$this->processParamNode($stmt, $param, $scope, $nodeCallback);
584:	}
585:
586:	if ($stmt->returnType !== null) {
587:	$nodeCallback($stmt->returnType, $scope);
588:	}
589:
590:	if (!$isDeprecated) {
591:	[$isDeprecated, $deprecatedDescription] = $this->getDeprecatedAttribute($scope, $stmt);
592:	}
593:
594:	$functionScope = $scope->enterFunction(
595:	$stmt,
596:	$templateTypeMap,
597:	$phpDocParameterTypes,
598:	$phpDocReturnType,
599:	$phpDocThrowType,
600:	$deprecatedDescription,
601:	$isDeprecated,
602:	$isInternal,
603:	$isPure,
604:	$acceptsNamedArguments,
605:	$asserts,
606:	$phpDocComment,
607:	$phpDocParameterOutTypes,
608:	$phpDocImmediatelyInvokedCallableParameters,
609:	$phpDocClosureThisTypeParameters,
610:	);
611:	$functionReflection = $functionScope->getFunction();
612:	if (!$functionReflection instanceof PhpFunctionFromParserNodeReflection) {
613:	throw new ShouldNotHappenException();
614:	}
615:
616:	$nodeCallback(new InFunctionNode($functionReflection, $stmt), $functionScope);
617:
618:	$gatheredReturnStatements = [];
619:	$gatheredYieldStatements = [];
620:	$executionEnds = [];
621:	$functionImpurePoints = [];
622:	$statementResult = $this->processStmtNodesInternal($stmt, $stmt->stmts, $functionScope, static function (Node $node, Scope $scope) use ($nodeCallback, $functionScope, &$gatheredReturnStatements, &$gatheredYieldStatements, &$executionEnds, &$functionImpurePoints): void {
623:	$nodeCallback($node, $scope);
624:	if ($scope->getFunction() !== $functionScope->getFunction()) {
625:	return;
626:	}
627:	if ($scope->isInAnonymousFunction()) {
628:	return;
629:	}
630:	if ($node instanceof PropertyAssignNode) {
631:	$functionImpurePoints[] = new ImpurePoint(
632:	$scope,
633:	$node,
634:	'propertyAssign',
635:	'property assignment',
636:	true,
637:	);
638:	return;
639:	}
640:	if ($node instanceof ExecutionEndNode) {
641:	$executionEnds[] = $node;
642:	return;
643:	}
644:	if ($node instanceof Expr\Yield_ \|\| $node instanceof Expr\YieldFrom) {
645:	$gatheredYieldStatements[] = $node;
646:	}
647:	if (!$node instanceof Return_) {
648:	return;
649:	}
650:
651:	$gatheredReturnStatements[] = new ReturnStatement($scope, $node);
652:	}, StatementContext::createTopLevel())->toPublic();
653:
654:	$nodeCallback(new FunctionReturnStatementsNode(
655:	$stmt,
656:	$gatheredReturnStatements,
657:	$gatheredYieldStatements,
658:	$statementResult,
659:	$executionEnds,
660:	array_merge($statementResult->getImpurePoints(), $functionImpurePoints),
661:	$functionReflection,
662:	), $functionScope);
663:	} elseif ($stmt instanceof Node\Stmt\ClassMethod) {
664:	$hasYield = false;
665:	$throwPoints = [];
666:	$impurePoints = [];
667:	$this->processAttributeGroups($stmt, $stmt->attrGroups, $scope, $nodeCallback);
668:	[$templateTypeMap, $phpDocParameterTypes, $phpDocImmediatelyInvokedCallableParameters, $phpDocClosureThisTypeParameters, $phpDocReturnType, $phpDocThrowType, $deprecatedDescription, $isDeprecated, $isInternal, $isFinal, $isPure, $acceptsNamedArguments, $isReadOnly, $phpDocComment, $asserts, $selfOutType, $phpDocParameterOutTypes] = $this->getPhpDocs($scope, $stmt);
669:
670:	foreach ($stmt->params as $param) {
671:	$this->processParamNode($stmt, $param, $scope, $nodeCallback);
672:	}
673:
674:	if ($stmt->returnType !== null) {
675:	$nodeCallback($stmt->returnType, $scope);
676:	}
677:
678:	if (!$isDeprecated) {
679:	[$isDeprecated, $deprecatedDescription] = $this->getDeprecatedAttribute($scope, $stmt);
680:	}
681:
682:	$isFromTrait = $stmt->getAttribute('originalTraitMethodName') === '__construct';
683:	$isConstructor = $isFromTrait \|\| $stmt->name->toLowerString() === '__construct';
684:
685:	$methodScope = $scope->enterClassMethod(
686:	$stmt,
687:	$templateTypeMap,
688:	$phpDocParameterTypes,
689:	$phpDocReturnType,
690:	$phpDocThrowType,
691:	$deprecatedDescription,
692:	$isDeprecated,
693:	$isInternal,
694:	$isFinal,
695:	$isPure,
696:	$acceptsNamedArguments,
697:	$asserts,
698:	$selfOutType,
699:	$phpDocComment,
700:	$phpDocParameterOutTypes,
701:	$phpDocImmediatelyInvokedCallableParameters,
702:	$phpDocClosureThisTypeParameters,
703:	$isConstructor,
704:	);
705:
706:	if (!$scope->isInClass()) {
707:	throw new ShouldNotHappenException();
708:	}
709:
710:	$classReflection = $scope->getClassReflection();
711:
712:	if ($isConstructor) {
713:	foreach ($stmt->params as $param) {
714:	if ($param->flags === 0 && $param->hooks === []) {
715:	continue;
716:	}
717:
718:	if (!$param->var instanceof Variable \|\| !is_string($param->var->name) \|\| $param->var->name === '') {
719:	throw new ShouldNotHappenException();
720:	}
721:	$phpDoc = null;
722:	if ($param->getDocComment() !== null) {
723:	$phpDoc = $param->getDocComment()->getText();
724:	}
725:	$nodeCallback(new ClassPropertyNode(
726:	$param->var->name,
727:	$param->flags,
728:	$param->type !== null ? ParserNodeTypeToPHPStanType::resolve($param->type, $classReflection) : null,
729:	null,
730:	$phpDoc,
731:	$phpDocParameterTypes[$param->var->name] ?? null,
732:	true,
733:	$isFromTrait,
734:	$param,
735:	$isReadOnly,
736:	$scope->isInTrait(),
737:	$classReflection->isReadOnly(),
738:	false,
739:	$classReflection,
740:	), $methodScope);
741:	$this->processPropertyHooks(
742:	$stmt,
743:	$param->type,
744:	$phpDocParameterTypes[$param->var->name] ?? null,
745:	$param->var->name,
746:	$param->hooks,
747:	$scope,
748:	$nodeCallback,
749:	);
750:	$methodScope = $methodScope->assignExpression(new PropertyInitializationExpr($param->var->name), new MixedType(), new MixedType());
751:	}
752:	}
753:
754:	if ($stmt->getAttribute('virtual', false) === false) {
755:	$methodReflection = $methodScope->getFunction();
756:	if (!$methodReflection instanceof PhpMethodFromParserNodeReflection) {
757:	throw new ShouldNotHappenException();
758:	}
759:	$nodeCallback(new InClassMethodNode($classReflection, $methodReflection, $stmt), $methodScope);
760:	}
761:
762:	if ($stmt->stmts !== null) {
763:	$gatheredReturnStatements = [];
764:	$gatheredYieldStatements = [];
765:	$executionEnds = [];
766:	$methodImpurePoints = [];
767:	$statementResult = $this->processStmtNodesInternal($stmt, $stmt->stmts, $methodScope, static function (Node $node, Scope $scope) use ($nodeCallback, $methodScope, &$gatheredReturnStatements, &$gatheredYieldStatements, &$executionEnds, &$methodImpurePoints): void {
768:	$nodeCallback($node, $scope);
769:	if ($scope->getFunction() !== $methodScope->getFunction()) {
770:	return;
771:	}
772:	if ($scope->isInAnonymousFunction()) {
773:	return;
774:	}
775:	if ($node instanceof PropertyAssignNode) {
776:	if (
777:	$node->getPropertyFetch() instanceof Expr\PropertyFetch
778:	&& $scope->getFunction() instanceof PhpMethodFromParserNodeReflection
779:	&& $scope->getFunction()->getDeclaringClass()->hasConstructor()
780:	&& $scope->getFunction()->getDeclaringClass()->getConstructor()->getName() === $scope->getFunction()->getName()
781:	&& TypeUtils::findThisType($scope->getType($node->getPropertyFetch()->var)) !== null
782:	) {
783:	return;
784:	}
785:	$methodImpurePoints[] = new ImpurePoint(
786:	$scope,
787:	$node,
788:	'propertyAssign',
789:	'property assignment',
790:	true,
791:	);
792:	return;
793:	}
794:	if ($node instanceof ExecutionEndNode) {
795:	$executionEnds[] = $node;
796:	return;
797:	}
798:	if ($node instanceof Expr\Yield_ \|\| $node instanceof Expr\YieldFrom) {
799:	$gatheredYieldStatements[] = $node;
800:	}
801:	if (!$node instanceof Return_) {
802:	return;
803:	}
804:
805:	$gatheredReturnStatements[] = new ReturnStatement($scope, $node);
806:	}, StatementContext::createTopLevel())->toPublic();
807:
808:	$methodReflection = $methodScope->getFunction();
809:	if (!$methodReflection instanceof PhpMethodFromParserNodeReflection) {
810:	throw new ShouldNotHappenException();
811:	}
812:
813:	$nodeCallback(new MethodReturnStatementsNode(
814:	$stmt,
815:	$gatheredReturnStatements,
816:	$gatheredYieldStatements,
817:	$statementResult,
818:	$executionEnds,
819:	array_merge($statementResult->getImpurePoints(), $methodImpurePoints),
820:	$classReflection,
821:	$methodReflection,
822:	), $methodScope);
823:
824:	if ($isConstructor && $this->narrowMethodScopeFromConstructor) {
825:	$finalScope = null;
826:
827:	foreach ($executionEnds as $executionEnd) {
828:	if ($executionEnd->getStatementResult()->isAlwaysTerminating()) {
829:	continue;
830:	}
831:
832:	$endScope = $executionEnd->getStatementResult()->getScope();
833:	if ($finalScope === null) {
834:	$finalScope = $endScope;
835:	continue;
836:	}
837:
838:	$finalScope = $finalScope->mergeWith($endScope);
839:	}
840:
841:	foreach ($gatheredReturnStatements as $statement) {
842:	if ($finalScope === null) {
843:	$finalScope = $statement->getScope();
844:	continue;
845:	}
846:
847:	$finalScope = $finalScope->mergeWith($statement->getScope());
848:	}
849:
850:	if ($finalScope !== null) {
851:	$scope = $finalScope->rememberConstructorScope();
852:	}
853:
854:	}
855:	}
856:	} elseif ($stmt instanceof Echo_) {
857:	$hasYield = false;
858:	$throwPoints = [];
859:	$isAlwaysTerminating = false;
860:	foreach ($stmt->exprs as $echoExpr) {
861:	$result = $this->processExprNode($stmt, $echoExpr, $scope, $nodeCallback, ExpressionContext::createDeep());
862:	$throwPoints = array_merge($throwPoints, $result->getThrowPoints());
863:	$scope = $result->getScope();
864:	$hasYield = $hasYield \|\| $result->hasYield();
865:	$isAlwaysTerminating = $isAlwaysTerminating \|\| $result->isAlwaysTerminating();
866:	}
867:
868:	$throwPoints = $overridingThrowPoints ?? $throwPoints;
869:	$impurePoints = [
870:	new ImpurePoint($scope, $stmt, 'echo', 'echo', true),
871:	];
872:	return new InternalStatementResult($scope, $hasYield, $isAlwaysTerminating, [], $throwPoints, $impurePoints);
873:	} elseif ($stmt instanceof Return_) {
874:	if ($stmt->expr !== null) {
875:	$result = $this->processExprNode($stmt, $stmt->expr, $scope, $nodeCallback, ExpressionContext::createDeep());
876:	$throwPoints = $result->getThrowPoints();
877:	$impurePoints = $result->getImpurePoints();
878:	$scope = $result->getScope();
879:	$hasYield = $result->hasYield();
880:	} else {
881:	$hasYield = false;
882:	$throwPoints = [];
883:	$impurePoints = [];
884:	}
885:
886:	return new InternalStatementResult($scope, $hasYield, true, [
887:	new InternalStatementExitPoint($stmt, $scope),
888:	], $overridingThrowPoints ?? $throwPoints, $impurePoints);
889:	} elseif ($stmt instanceof Continue_ \|\| $stmt instanceof Break_) {
890:	if ($stmt->num !== null) {
891:	$result = $this->processExprNode($stmt, $stmt->num, $scope, $nodeCallback, ExpressionContext::createDeep());
892:	$scope = $result->getScope();
893:	$hasYield = $result->hasYield();
894:	$throwPoints = $result->getThrowPoints();
895:	$impurePoints = $result->getImpurePoints();
896:	} else {
897:	$hasYield = false;
898:	$throwPoints = [];
899:	$impurePoints = [];
900:	}
901:
902:	return new InternalStatementResult($scope, $hasYield, true, [
903:	new InternalStatementExitPoint($stmt, $scope),
904:	], $overridingThrowPoints ?? $throwPoints, $impurePoints);
905:	} elseif ($stmt instanceof Node\Stmt\Expression) {
906:	if ($stmt->expr instanceof Expr\Throw_) {
907:	$scope = $stmtScope;
908:	}
909:	$earlyTerminationExpr = $this->findEarlyTerminatingExpr($stmt->expr, $scope);
910:	$hasAssign = false;
911:	$currentScope = $scope;
912:	$result = $this->processExprNode($stmt, $stmt->expr, $scope, static function (Node $node, Scope $scope) use ($nodeCallback, $currentScope, &$hasAssign): void {
913:	$nodeCallback($node, $scope);
914:	if ($scope->getAnonymousFunctionReflection() !== $currentScope->getAnonymousFunctionReflection()) {
915:	return;
916:	}
917:	if ($scope->getFunction() !== $currentScope->getFunction()) {
918:	return;
919:	}
920:	if (!$node instanceof VariableAssignNode && !$node instanceof PropertyAssignNode) {
921:	return;
922:	}
923:
924:	$hasAssign = true;
925:	}, ExpressionContext::createTopLevel());
926:	$throwPoints = array_filter($result->getThrowPoints(), static fn ($throwPoint) => $throwPoint->isExplicit());
927:	if (
928:	count($result->getImpurePoints()) === 0
929:	&& count($throwPoints) === 0
930:	&& !$stmt->expr instanceof Expr\PostInc
931:	&& !$stmt->expr instanceof Expr\PreInc
932:	&& !$stmt->expr instanceof Expr\PostDec
933:	&& !$stmt->expr instanceof Expr\PreDec
934:	) {
935:	$nodeCallback(new NoopExpressionNode($stmt->expr, $hasAssign), $scope);
936:	}
937:	$scope = $result->getScope();
938:	$scope = $scope->filterBySpecifiedTypes($this->typeSpecifier->specifyTypesInCondition(
939:	$scope,
940:	$stmt->expr,
941:	TypeSpecifierContext::createNull(),
942:	));
943:	$hasYield = $result->hasYield();
944:	$throwPoints = $result->getThrowPoints();
945:	$impurePoints = $result->getImpurePoints();
946:	$isAlwaysTerminating = $result->isAlwaysTerminating();
947:
948:	if ($earlyTerminationExpr !== null) {
949:	return new InternalStatementResult($scope, $hasYield, true, [
950:	new InternalStatementExitPoint($stmt, $scope),
951:	], $overridingThrowPoints ?? $throwPoints, $impurePoints);
952:	}
953:	return new InternalStatementResult($scope, $hasYield, $isAlwaysTerminating, [], $overridingThrowPoints ?? $throwPoints, $impurePoints);
954:	} elseif ($stmt instanceof Node\Stmt\Namespace_) {
955:	if ($stmt->name !== null) {
956:	$scope = $scope->enterNamespace($stmt->name->toString());
957:	}
958:
959:	$scope = $this->processStmtNodesInternal($stmt, $stmt->stmts, $scope, $nodeCallback, $context)->getScope();
960:	$hasYield = false;
961:	$throwPoints = [];
962:	$impurePoints = [];
963:	} elseif ($stmt instanceof Node\Stmt\Trait_) {
964:	return new InternalStatementResult($scope, false, false, [], [], []);
965:	} elseif ($stmt instanceof Node\Stmt\ClassLike) {
966:	if (!$context->isTopLevel()) {
967:	return new InternalStatementResult($scope, false, false, [], [], []);
968:	}
969:	$hasYield = false;
970:	$throwPoints = [];
971:	$impurePoints = [];
972:	if (isset($stmt->namespacedName)) {
973:	$classReflection = $this->getCurrentClassReflection($stmt, $stmt->namespacedName->toString(), $scope);
974:	$classScope = $scope->enterClass($classReflection);
975:	$nodeCallback(new InClassNode($stmt, $classReflection), $classScope);
976:	} elseif ($stmt instanceof Class_) {
977:	if ($stmt->name === null) {
978:	throw new ShouldNotHappenException();
979:	}
980:	if (!$stmt->isAnonymous()) {
981:	$classReflection = $this->reflectionProvider->getClass($stmt->name->toString());
982:	} else {
983:	$classReflection = $this->reflectionProvider->getAnonymousClassReflection($stmt, $scope);
984:	}
985:	$classScope = $scope->enterClass($classReflection);
986:	$nodeCallback(new InClassNode($stmt, $classReflection), $classScope);
987:	} else {
988:	throw new ShouldNotHappenException();
989:	}
990:
991:	$classStatementsGatherer = new ClassStatementsGatherer($classReflection);
992:	$classStatementsGathererCallback = new class ($classStatementsGatherer, $nodeCallback) {
993:
994:	/**
995:	* @param callable(Node $node, Scope $scope): void $nodeCallback
996:	*/
997:	public function __construct(
998:	private ClassStatementsGatherer $classStatementsGatherer,
999:	private $nodeCallback,
1000:	)
1001:	{
1002:	}
1003:
1004:	public function __invoke(Node $node, Scope $scope): void
1005:	{
1006:	($this->classStatementsGatherer)($node, $scope, $this->nodeCallback);
1007:	}
1008:
1009:	};
1010:	$this->processAttributeGroups($stmt, $stmt->attrGroups, $classScope, $classStatementsGathererCallback);
1011:
1012:	$classLikeStatements = $stmt->stmts;
1013:	if ($this->narrowMethodScopeFromConstructor) {
1014:	// analyze static methods first; constructor next; instance methods and property hooks last so we can carry over the scope
1015:	usort($classLikeStatements, static function ($a, $b) {
1016:	if ($a instanceof Node\Stmt\Property) {
1017:	return 1;
1018:	}
1019:	if ($b instanceof Node\Stmt\Property) {
1020:	return -1;
1021:	}
1022:
1023:	if (!$a instanceof Node\Stmt\ClassMethod \|\| !$b instanceof Node\Stmt\ClassMethod) {
1024:	return 0;
1025:	}
1026:
1027:	return [!$a->isStatic(), $a->name->toLowerString() !== '__construct'] <=> [!$b->isStatic(), $b->name->toLowerString() !== '__construct'];
1028:	});
1029:	}
1030:
1031:	$this->processStmtNodesInternal($stmt, $classLikeStatements, $classScope, $classStatementsGathererCallback, $context);
1032:	$nodeCallback(new ClassPropertiesNode($stmt, $this->readWritePropertiesExtensionProvider, $classStatementsGatherer->getProperties(), $classStatementsGatherer->getPropertyUsages(), $classStatementsGatherer->getMethodCalls(), $classStatementsGatherer->getReturnStatementsNodes(), $classStatementsGatherer->getPropertyAssigns(), $classReflection), $classScope);
1033:	$nodeCallback(new ClassMethodsNode($stmt, $classStatementsGatherer->getMethods(), $classStatementsGatherer->getMethodCalls(), $classReflection), $classScope);
1034:	$nodeCallback(new ClassConstantsNode($stmt, $classStatementsGatherer->getConstants(), $classStatementsGatherer->getConstantFetches(), $classReflection), $classScope);
1035:	$classReflection->evictPrivateSymbols();
1036:	$this->calledMethodResults = [];
1037:	} elseif ($stmt instanceof Node\Stmt\Property) {
1038:	$hasYield = false;
1039:	$throwPoints = [];
1040:	$impurePoints = [];
1041:	$this->processAttributeGroups($stmt, $stmt->attrGroups, $scope, $nodeCallback);
1042:
1043:	$nativePropertyType = $stmt->type !== null ? ParserNodeTypeToPHPStanType::resolve($stmt->type, $scope->getClassReflection()) : null;
1044:
1045:	[,,,,,,,,,,,,$isReadOnly, $docComment, ,,,$varTags, $isAllowedPrivateMutation] = $this->getPhpDocs($scope, $stmt);
1046:	$phpDocType = null;
1047:	if (isset($varTags[0]) && count($varTags) === 1) {
1048:	$phpDocType = $varTags[0]->getType();
1049:	}
1050:
1051:	foreach ($stmt->props as $prop) {
1052:	$nodeCallback($prop, $scope);
1053:	if ($prop->default !== null) {
1054:	$this->processExprNode($stmt, $prop->default, $scope, $nodeCallback, ExpressionContext::createDeep());
1055:	}
1056:
1057:	if (!$scope->isInClass()) {
1058:	throw new ShouldNotHappenException();
1059:	}
1060:	$propertyName = $prop->name->toString();
1061:
1062:	if ($phpDocType === null) {
1063:	if (isset($varTags[$propertyName])) {
1064:	$phpDocType = $varTags[$propertyName]->getType();
1065:	}
1066:	}
1067:
1068:	$propStmt = clone $stmt;
1069:	$propStmt->setAttributes($prop->getAttributes());
1070:	$propStmt->setAttribute('originalPropertyStmt', $stmt);
1071:	$nodeCallback(
1072:	new ClassPropertyNode(
1073:	$propertyName,
1074:	$stmt->flags,
1075:	$nativePropertyType,
1076:	$prop->default,
1077:	$docComment,
1078:	$phpDocType,
1079:	false,
1080:	false,
1081:	$propStmt,
1082:	$isReadOnly,
1083:	$scope->isInTrait(),
1084:	$scope->getClassReflection()->isReadOnly(),
1085:	$isAllowedPrivateMutation,
1086:	$scope->getClassReflection(),
1087:	),
1088:	$scope,
1089:	);
1090:	}
1091:
1092:	if (count($stmt->hooks) > 0) {
1093:	if (!isset($propertyName)) {
1094:	throw new ShouldNotHappenException('Property name should be known when analysing hooks.');
1095:	}
1096:	$this->processPropertyHooks(
1097:	$stmt,
1098:	$stmt->type,
1099:	$phpDocType,
1100:	$propertyName,
1101:	$stmt->hooks,
1102:	$scope,
1103:	$nodeCallback,
1104:	);
1105:	}
1106:
1107:	if ($stmt->type !== null) {
1108:	$nodeCallback($stmt->type, $scope);
1109:	}
1110:	} elseif ($stmt instanceof If_) {
1111:	$conditionType = ($this->treatPhpDocTypesAsCertain ? $scope->getType($stmt->cond) : $scope->getNativeType($stmt->cond))->toBoolean();
1112:	$ifAlwaysTrue = $conditionType->isTrue()->yes();
1113:	$condResult = $this->processExprNode($stmt, $stmt->cond, $scope, $nodeCallback, ExpressionContext::createDeep());
1114:	$exitPoints = [];
1115:	$throwPoints = $overridingThrowPoints ?? $condResult->getThrowPoints();
1116:	$impurePoints = $condResult->getImpurePoints();
1117:	$endStatements = [];
1118:	$finalScope = null;
1119:	$alwaysTerminating = true;
1120:	$hasYield = $condResult->hasYield();
1121:
1122:	$branchScopeStatementResult = $this->processStmtNodesInternal($stmt, $stmt->stmts, $condResult->getTruthyScope(), $nodeCallback, $context);
1123:
1124:	if (!$conditionType->isTrue()->no()) {
1125:	$exitPoints = $branchScopeStatementResult->getExitPoints();
1126:	$throwPoints = array_merge($throwPoints, $branchScopeStatementResult->getThrowPoints());
1127:	$impurePoints = array_merge($impurePoints, $branchScopeStatementResult->getImpurePoints());
1128:	$branchScope = $branchScopeStatementResult->getScope();
1129:	$finalScope = $branchScopeStatementResult->isAlwaysTerminating() ? null : $branchScope;
1130:	$alwaysTerminating = $branchScopeStatementResult->isAlwaysTerminating();
1131:	if (count($branchScopeStatementResult->getEndStatements()) > 0) {
1132:	$endStatements = array_merge($endStatements, $branchScopeStatementResult->getEndStatements());
1133:	} elseif (count($stmt->stmts) > 0) {
1134:	$endStatements[] = new InternalEndStatementResult($stmt->stmts[count($stmt->stmts) - 1], $branchScopeStatementResult);
1135:	} else {
1136:	$endStatements[] = new InternalEndStatementResult($stmt, $branchScopeStatementResult);
1137:	}
1138:	$hasYield = $branchScopeStatementResult->hasYield() \|\| $hasYield;
1139:	}
1140:
1141:	$scope = $condResult->getFalseyScope();
1142:	$lastElseIfConditionIsTrue = false;
1143:
1144:	$condScope = $scope;
1145:	foreach ($stmt->elseifs as $elseif) {
1146:	$nodeCallback($elseif, $scope);
1147:	$elseIfConditionType = ($this->treatPhpDocTypesAsCertain ? $condScope->getType($elseif->cond) : $scope->getNativeType($elseif->cond))->toBoolean();
1148:	$condResult = $this->processExprNode($stmt, $elseif->cond, $condScope, $nodeCallback, ExpressionContext::createDeep());
1149:	$throwPoints = array_merge($throwPoints, $condResult->getThrowPoints());
1150:	$impurePoints = array_merge($impurePoints, $condResult->getImpurePoints());
1151:	$condScope = $condResult->getScope();
1152:	$branchScopeStatementResult = $this->processStmtNodesInternal($elseif, $elseif->stmts, $condResult->getTruthyScope(), $nodeCallback, $context);
1153:
1154:	if (
1155:	!$ifAlwaysTrue
1156:	&& !$lastElseIfConditionIsTrue
1157:	&& !$elseIfConditionType->isTrue()->no()
1158:	) {
1159:	$exitPoints = array_merge($exitPoints, $branchScopeStatementResult->getExitPoints());
1160:	$throwPoints = array_merge($throwPoints, $branchScopeStatementResult->getThrowPoints());
1161:	$impurePoints = array_merge($impurePoints, $branchScopeStatementResult->getImpurePoints());
1162:	$branchScope = $branchScopeStatementResult->getScope();
1163:	$finalScope = $branchScopeStatementResult->isAlwaysTerminating() ? $finalScope : $branchScope->mergeWith($finalScope);
1164:	$alwaysTerminating = $alwaysTerminating && $branchScopeStatementResult->isAlwaysTerminating();
1165:	if (count($branchScopeStatementResult->getEndStatements()) > 0) {
1166:	$endStatements = array_merge($endStatements, $branchScopeStatementResult->getEndStatements());
1167:	} elseif (count($elseif->stmts) > 0) {
1168:	$endStatements[] = new InternalEndStatementResult($elseif->stmts[count($elseif->stmts) - 1], $branchScopeStatementResult);
1169:	} else {
1170:	$endStatements[] = new InternalEndStatementResult($elseif, $branchScopeStatementResult);
1171:	}
1172:	$hasYield = $hasYield \|\| $branchScopeStatementResult->hasYield();
1173:	}
1174:
1175:	if (
1176:	$elseIfConditionType->isTrue()->yes()
1177:	) {
1178:	$lastElseIfConditionIsTrue = true;
1179:	}
1180:
1181:	$condScope = $condScope->filterByFalseyValue($elseif->cond);
1182:	$scope = $condScope;
1183:	}
1184:
1185:	if ($stmt->else === null) {
1186:	if (!$ifAlwaysTrue && !$lastElseIfConditionIsTrue) {
1187:	$finalScope = $scope->mergeWith($finalScope);
1188:	$alwaysTerminating = false;
1189:	}
1190:	} else {
1191:	$nodeCallback($stmt->else, $scope);
1192:	$branchScopeStatementResult = $this->processStmtNodesInternal($stmt->else, $stmt->else->stmts, $scope, $nodeCallback, $context);
1193:
1194:	if (!$ifAlwaysTrue && !$lastElseIfConditionIsTrue) {
1195:	$exitPoints = array_merge($exitPoints, $branchScopeStatementResult->getExitPoints());
1196:	$throwPoints = array_merge($throwPoints, $branchScopeStatementResult->getThrowPoints());
1197:	$impurePoints = array_merge($impurePoints, $branchScopeStatementResult->getImpurePoints());
1198:	$branchScope = $branchScopeStatementResult->getScope();
1199:	$finalScope = $branchScopeStatementResult->isAlwaysTerminating() ? $finalScope : $branchScope->mergeWith($finalScope);
1200:	$alwaysTerminating = $alwaysTerminating && $branchScopeStatementResult->isAlwaysTerminating();
1201:	if (count($branchScopeStatementResult->getEndStatements()) > 0) {
1202:	$endStatements = array_merge($endStatements, $branchScopeStatementResult->getEndStatements());
1203:	} elseif (count($stmt->else->stmts) > 0) {
1204:	$endStatements[] = new InternalEndStatementResult($stmt->else->stmts[count($stmt->else->stmts) - 1], $branchScopeStatementResult);
1205:	} else {
1206:	$endStatements[] = new InternalEndStatementResult($stmt->else, $branchScopeStatementResult);
1207:	}
1208:	$hasYield = $hasYield \|\| $branchScopeStatementResult->hasYield();
1209:	}
1210:	}
1211:
1212:	if ($finalScope === null) {
1213:	$finalScope = $scope;
1214:	}
1215:
1216:	if ($stmt->else === null && !$ifAlwaysTrue && !$lastElseIfConditionIsTrue) {
1217:	$endStatements[] = new InternalEndStatementResult($stmt, new InternalStatementResult($finalScope, $hasYield, $alwaysTerminating, $exitPoints, $throwPoints, $impurePoints));
1218:	}
1219:
1220:	return new InternalStatementResult($finalScope, $hasYield, $alwaysTerminating, $exitPoints, $throwPoints, $impurePoints, $endStatements);
1221:	} elseif ($stmt instanceof Node\Stmt\TraitUse) {
1222:	$hasYield = false;
1223:	$throwPoints = [];
1224:	$impurePoints = [];
1225:	$this->processTraitUse($stmt, $scope, $nodeCallback);
1226:	} elseif ($stmt instanceof Foreach_) {
1227:	$condResult = $this->processExprNode($stmt, $stmt->expr, $scope, $nodeCallback, ExpressionContext::createDeep());
1228:	$throwPoints = $overridingThrowPoints ?? $condResult->getThrowPoints();
1229:	$impurePoints = $condResult->getImpurePoints();
1230:	$scope = $condResult->getScope();
1231:	$arrayComparisonExpr = new BinaryOp\NotIdentical(
1232:	$stmt->expr,
1233:	new Array_([]),
1234:	);
1235:	if ($stmt->expr instanceof Variable && is_string($stmt->expr->name)) {
1236:	$scope = $this->processVarAnnotation($scope, [$stmt->expr->name], $stmt);
1237:	}
1238:	$nodeCallback(new InForeachNode($stmt), $scope);
1239:	$originalScope = $scope;
1240:	$bodyScope = $scope;
1241:
1242:	if ($stmt->keyVar instanceof Variable) {
1243:	$nodeCallback(new VariableAssignNode($stmt->keyVar, new GetIterableKeyTypeExpr($stmt->expr)), $originalScope);
1244:	}
1245:
1246:	if ($stmt->valueVar instanceof Variable) {
1247:	$nodeCallback(new VariableAssignNode($stmt->valueVar, new GetIterableValueTypeExpr($stmt->expr)), $originalScope);
1248:	}
1249:
1250:	if ($context->isTopLevel()) {
1251:	$originalScope = $this->polluteScopeWithAlwaysIterableForeach ? $scope->filterByTruthyValue($arrayComparisonExpr) : $scope;
1252:	$bodyScope = $this->enterForeach($originalScope, $originalScope, $stmt, $nodeCallback);
1253:	$count = 0;
1254:	do {
1255:	$prevScope = $bodyScope;
1256:	$bodyScope = $bodyScope->mergeWith($this->polluteScopeWithAlwaysIterableForeach ? $scope->filterByTruthyValue($arrayComparisonExpr) : $scope);
1257:	$bodyScope = $this->enterForeach($bodyScope, $originalScope, $stmt, $nodeCallback);
1258:	$bodyScopeResult = $this->processStmtNodesInternal($stmt, $stmt->stmts, $bodyScope, static function (): void {
1259:	}, $context->enterDeep())->filterOutLoopExitPoints();
1260:	$bodyScope = $bodyScopeResult->getScope();
1261:	foreach ($bodyScopeResult->getExitPointsByType(Continue_::class) as $continueExitPoint) {
1262:	$bodyScope = $bodyScope->mergeWith($continueExitPoint->getScope());
1263:	}
1264:	if ($bodyScope->equals($prevScope)) {
1265:	break;
1266:	}
1267:
1268:	if ($count >= self::GENERALIZE_AFTER_ITERATION) {
1269:	$bodyScope = $prevScope->generalizeWith($bodyScope);
1270:	}
1271:	$count++;
1272:	} while ($count < self::LOOP_SCOPE_ITERATIONS);
1273:	}
1274:
1275:	$bodyScope = $bodyScope->mergeWith($this->polluteScopeWithAlwaysIterableForeach ? $scope->filterByTruthyValue($arrayComparisonExpr) : $scope);
1276:	$bodyScope = $this->enterForeach($bodyScope, $originalScope, $stmt, $nodeCallback);
1277:	$finalScopeResult = $this->processStmtNodesInternal($stmt, $stmt->stmts, $bodyScope, $nodeCallback, $context)->filterOutLoopExitPoints();
1278:	$finalScope = $finalScopeResult->getScope();
1279:	$scopesWithIterableValueType = [];
1280:
1281:	$originalKeyVarExpr = null;
1282:	$continueExitPointHasUnoriginalKeyType = false;
1283:	if ($stmt->keyVar instanceof Variable && is_string($stmt->keyVar->name)) {
1284:	$originalKeyVarExpr = new OriginalForeachKeyExpr($stmt->keyVar->name);
1285:	if ($finalScope->hasExpressionType($originalKeyVarExpr)->yes()) {
1286:	$scopesWithIterableValueType[] = $finalScope;
1287:	} else {
1288:	$continueExitPointHasUnoriginalKeyType = true;
1289:	}
1290:	}
1291:
1292:	foreach ($finalScopeResult->getExitPointsByType(Continue_::class) as $continueExitPoint) {
1293:	$continueScope = $continueExitPoint->getScope();
1294:	$finalScope = $continueScope->mergeWith($finalScope);
1295:	if ($originalKeyVarExpr === null \|\| !$continueScope->hasExpressionType($originalKeyVarExpr)->yes()) {
1296:	$continueExitPointHasUnoriginalKeyType = true;
1297:	continue;
1298:	}
1299:	$scopesWithIterableValueType[] = $continueScope;
1300:	}
1301:	$breakExitPoints = $finalScopeResult->getExitPointsByType(Break_::class);
1302:	foreach ($breakExitPoints as $breakExitPoint) {
1303:	$finalScope = $breakExitPoint->getScope()->mergeWith($finalScope);
1304:	}
1305:
1306:	$exprType = $scope->getType($stmt->expr);
1307:	$hasExpr = $scope->hasExpressionType($stmt->expr);
1308:	if (
1309:	count($breakExitPoints) === 0
1310:	&& count($scopesWithIterableValueType) > 0
1311:	&& !$continueExitPointHasUnoriginalKeyType
1312:	&& $stmt->keyVar !== null
1313:	&& $exprType->isArray()->yes()
1314:	&& $exprType->isConstantArray()->no()
1315:	&& (!$hasExpr->no() \|\| !$stmt->expr instanceof Variable)
1316:	) {
1317:	$arrayExprDimFetch = new ArrayDimFetch($stmt->expr, $stmt->keyVar);
1318:	$arrayDimFetchLoopTypes = [];
1319:	foreach ($scopesWithIterableValueType as $scopeWithIterableValueType) {
1320:	$arrayDimFetchLoopTypes[] = $scopeWithIterableValueType->getType($arrayExprDimFetch);
1321:	}
1322:
1323:	$arrayDimFetchLoopType = TypeCombinator::union(...$arrayDimFetchLoopTypes);
1324:
1325:	$arrayDimFetchLoopNativeTypes = [];
1326:	foreach ($scopesWithIterableValueType as $scopeWithIterableValueType) {
1327:	$arrayDimFetchLoopNativeTypes[] = $scopeWithIterableValueType->getNativeType($arrayExprDimFetch);
1328:	}
1329:
1330:	$arrayDimFetchLoopNativeType = TypeCombinator::union(...$arrayDimFetchLoopNativeTypes);
1331:
1332:	if (!$arrayDimFetchLoopType->equals($exprType->getIterableValueType())) {
1333:	$newExprType = TypeTraverser::map($exprType, static function (Type $type, callable $traverse) use ($arrayDimFetchLoopType): Type {
1334:	if ($type instanceof UnionType \|\| $type instanceof IntersectionType) {
1335:	return $traverse($type);
1336:	}
1337:
1338:	if (!$type instanceof ArrayType) {
1339:	return $type;
1340:	}
1341:
1342:	return new ArrayType($type->getKeyType(), $arrayDimFetchLoopType);
1343:	});
1344:	$newExprNativeType = TypeTraverser::map($scope->getNativeType($stmt->expr), static function (Type $type, callable $traverse) use ($arrayDimFetchLoopNativeType): Type {
1345:	if ($type instanceof UnionType \|\| $type instanceof IntersectionType) {
1346:	return $traverse($type);
1347:	}
1348:
1349:	if (!$type instanceof ArrayType) {
1350:	return $type;
1351:	}
1352:
1353:	return new ArrayType($type->getKeyType(), $arrayDimFetchLoopNativeType);
1354:	});
1355:
1356:	if ($stmt->expr instanceof Variable && is_string($stmt->expr->name)) {
1357:	$finalScope = $finalScope->assignVariable(
1358:	$stmt->expr->name,
1359:	$newExprType,
1360:	$newExprNativeType,
1361:	$hasExpr,
1362:	);
1363:	} else {
1364:	$finalScope = $finalScope->assignExpression(
1365:	$stmt->expr,
1366:	$newExprType,
1367:	$newExprNativeType,
1368:	);
1369:	}
1370:	}
1371:	}
1372:
1373:	$isIterableAtLeastOnce = $exprType->isIterableAtLeastOnce();
1374:	if ($exprType->isIterable()->no() \|\| $isIterableAtLeastOnce->maybe()) {
1375:	$finalScope = $finalScope->mergeWith($scope->filterByTruthyValue(new BooleanOr(
1376:	new BinaryOp\Identical(
1377:	$stmt->expr,
1378:	new Array_([]),
1379:	),
1380:	new FuncCall(new Name\FullyQualified('is_object'), [
1381:	new Arg($stmt->expr),
1382:	]),
1383:	)));
1384:	} elseif ($isIterableAtLeastOnce->no() \|\| $finalScopeResult->isAlwaysTerminating()) {
1385:	$finalScope = $scope;
1386:	} elseif (!$this->polluteScopeWithAlwaysIterableForeach) {
1387:	$finalScope = $scope->processAlwaysIterableForeachScopeWithoutPollute($finalScope);
1388:	// get types from finalScope, but don't create new variables
1389:	}
1390:
1391:	if (!$isIterableAtLeastOnce->no()) {
1392:	$throwPoints = array_merge($throwPoints, $finalScopeResult->getThrowPoints());
1393:	$impurePoints = array_merge($impurePoints, $finalScopeResult->getImpurePoints());
1394:	}
1395:	if (!(new ObjectType(Traversable::class))->isSuperTypeOf($scope->getType($stmt->expr))->no()) {
1396:	$throwPoints[] = InternalThrowPoint::createImplicit($scope, $stmt->expr);
1397:	}
1398:	if ($context->isTopLevel() && $stmt->byRef) {
1399:	$finalScope = $finalScope->assignExpression(new ForeachValueByRefExpr($stmt->valueVar), new MixedType(), new MixedType());
1400:	}
1401:
1402:	return new InternalStatementResult(
1403:	$finalScope,
1404:	$finalScopeResult->hasYield() \|\| $condResult->hasYield(),
1405:	$isIterableAtLeastOnce->yes() && $finalScopeResult->isAlwaysTerminating(),
1406:	$finalScopeResult->getExitPointsForOuterLoop(),
1407:	$throwPoints,
1408:	$impurePoints,
1409:	);
1410:	} elseif ($stmt instanceof While_) {
1411:	$condResult = $this->processExprNode($stmt, $stmt->cond, $scope, static function (): void {
1412:	}, ExpressionContext::createDeep());
1413:	$beforeCondBooleanType = ($this->treatPhpDocTypesAsCertain ? $scope->getType($stmt->cond) : $scope->getNativeType($stmt->cond))->toBoolean();
1414:	$condScope = $condResult->getFalseyScope();
1415:	if (!$context->isTopLevel() && $beforeCondBooleanType->isFalse()->yes()) {
1416:	if (!$this->polluteScopeWithLoopInitialAssignments) {
1417:	$scope = $condScope->mergeWith($scope);
1418:	}
1419:
1420:	return new InternalStatementResult(
1421:	$scope,
1422:	$condResult->hasYield(),
1423:	false,
1424:	[],
1425:	$condResult->getThrowPoints(),
1426:	$condResult->getImpurePoints(),
1427:	);
1428:	}
1429:	$bodyScope = $condResult->getTruthyScope();
1430:
1431:	if ($context->isTopLevel()) {
1432:	$count = 0;
1433:	do {
1434:	$prevScope = $bodyScope;
1435:	$bodyScope = $bodyScope->mergeWith($scope);
1436:	$bodyScope = $this->processExprNode($stmt, $stmt->cond, $bodyScope, static function (): void {
1437:	}, ExpressionContext::createDeep())->getTruthyScope();
1438:	$bodyScopeResult = $this->processStmtNodesInternal($stmt, $stmt->stmts, $bodyScope, static function (): void {
1439:	}, $context->enterDeep())->filterOutLoopExitPoints();
1440:	$bodyScope = $bodyScopeResult->getScope();
1441:	foreach ($bodyScopeResult->getExitPointsByType(Continue_::class) as $continueExitPoint) {
1442:	$bodyScope = $bodyScope->mergeWith($continueExitPoint->getScope());
1443:	}
1444:	if ($bodyScope->equals($prevScope)) {
1445:	break;
1446:	}
1447:
1448:	if ($count >= self::GENERALIZE_AFTER_ITERATION) {
1449:	$bodyScope = $prevScope->generalizeWith($bodyScope);
1450:	}
1451:	$count++;
1452:	} while ($count < self::LOOP_SCOPE_ITERATIONS);
1453:	}
1454:
1455:	$bodyScope = $bodyScope->mergeWith($scope);
1456:	$bodyScopeMaybeRan = $bodyScope;
1457:	$bodyScope = $this->processExprNode($stmt, $stmt->cond, $bodyScope, $nodeCallback, ExpressionContext::createDeep())->getTruthyScope();
1458:	$finalScopeResult = $this->processStmtNodesInternal($stmt, $stmt->stmts, $bodyScope, $nodeCallback, $context)->filterOutLoopExitPoints();
1459:	$finalScope = $finalScopeResult->getScope()->filterByFalseyValue($stmt->cond);
1460:
1461:	$condBooleanType = ($this->treatPhpDocTypesAsCertain ? $bodyScopeMaybeRan->getType($stmt->cond) : $bodyScopeMaybeRan->getNativeType($stmt->cond))->toBoolean();
1462:	$alwaysIterates = $condBooleanType->isTrue()->yes() && $context->isTopLevel();
1463:	$neverIterates = $condBooleanType->isFalse()->yes() && $context->isTopLevel();
1464:	if (!$alwaysIterates) {
1465:	foreach ($finalScopeResult->getExitPointsByType(Continue_::class) as $continueExitPoint) {
1466:	$finalScope = $finalScope->mergeWith($continueExitPoint->getScope());
1467:	}
1468:	}
1469:
1470:	$breakExitPoints = $finalScopeResult->getExitPointsByType(Break_::class);
1471:	foreach ($breakExitPoints as $breakExitPoint) {
1472:	$finalScope = $finalScope->mergeWith($breakExitPoint->getScope());
1473:	}
1474:
1475:	$isIterableAtLeastOnce = $beforeCondBooleanType->isTrue()->yes();
1476:	$nodeCallback(new BreaklessWhileLoopNode($stmt, $finalScopeResult->toPublic()->getExitPoints()), $bodyScopeMaybeRan);
1477:
1478:	if ($alwaysIterates) {
1479:	$isAlwaysTerminating = count($finalScopeResult->getExitPointsByType(Break_::class)) === 0;
1480:	} elseif ($isIterableAtLeastOnce) {
1481:	$isAlwaysTerminating = $finalScopeResult->isAlwaysTerminating();
1482:	} else {
1483:	$isAlwaysTerminating = false;
1484:	}
1485:	if (!$isIterableAtLeastOnce) {
1486:	if (!$this->polluteScopeWithLoopInitialAssignments) {
1487:	$condScope = $condScope->mergeWith($scope);
1488:	}
1489:	$finalScope = $finalScope->mergeWith($condScope);
1490:	}
1491:
1492:	$throwPoints = $overridingThrowPoints ?? $condResult->getThrowPoints();
1493:	$impurePoints = $condResult->getImpurePoints();
1494:	if (!$neverIterates) {
1495:	$throwPoints = array_merge($throwPoints, $finalScopeResult->getThrowPoints());
1496:	$impurePoints = array_merge($impurePoints, $finalScopeResult->getImpurePoints());
1497:	}
1498:
1499:	return new InternalStatementResult(
1500:	$finalScope,
1501:	$finalScopeResult->hasYield() \|\| $condResult->hasYield(),
1502:	$isAlwaysTerminating,
1503:	$finalScopeResult->getExitPointsForOuterLoop(),
1504:	$throwPoints,
1505:	$impurePoints,
1506:	);
1507:	} elseif ($stmt instanceof Do_) {
1508:	$finalScope = null;
1509:	$bodyScope = $scope;
1510:	$count = 0;
1511:	$hasYield = false;
1512:	$throwPoints = [];
1513:	$impurePoints = [];
1514:
1515:	if ($context->isTopLevel()) {
1516:	do {
1517:	$prevScope = $bodyScope;
1518:	$bodyScope = $bodyScope->mergeWith($scope);
1519:	$bodyScopeResult = $this->processStmtNodesInternal($stmt, $stmt->stmts, $bodyScope, static function (): void {
1520:	}, $context->enterDeep())->filterOutLoopExitPoints();
1521:	$alwaysTerminating = $bodyScopeResult->isAlwaysTerminating();
1522:	$bodyScope = $bodyScopeResult->getScope();
1523:	foreach ($bodyScopeResult->getExitPointsByType(Continue_::class) as $continueExitPoint) {
1524:	$bodyScope = $bodyScope->mergeWith($continueExitPoint->getScope());
1525:	}
1526:	$finalScope = $alwaysTerminating ? $finalScope : $bodyScope->mergeWith($finalScope);
1527:	foreach ($bodyScopeResult->getExitPointsByType(Break_::class) as $breakExitPoint) {
1528:	$finalScope = $breakExitPoint->getScope()->mergeWith($finalScope);
1529:	}
1530:	$bodyScope = $this->processExprNode($stmt, $stmt->cond, $bodyScope, static function (): void {
1531:	}, ExpressionContext::createDeep())->getTruthyScope();
1532:	if ($bodyScope->equals($prevScope)) {
1533:	break;
1534:	}
1535:
1536:	if ($count >= self::GENERALIZE_AFTER_ITERATION) {
1537:	$bodyScope = $prevScope->generalizeWith($bodyScope);
1538:	}
1539:	$count++;
1540:	} while ($count < self::LOOP_SCOPE_ITERATIONS);
1541:
1542:	$bodyScope = $bodyScope->mergeWith($scope);
1543:	}
1544:
1545:	$bodyScopeResult = $this->processStmtNodesInternal($stmt, $stmt->stmts, $bodyScope, $nodeCallback, $context)->filterOutLoopExitPoints();
1546:	$bodyScope = $bodyScopeResult->getScope();
1547:	foreach ($bodyScopeResult->getExitPointsByType(Continue_::class) as $continueExitPoint) {
1548:	$bodyScope = $bodyScope->mergeWith($continueExitPoint->getScope());
1549:	}
1550:	$condBooleanType = ($this->treatPhpDocTypesAsCertain ? $bodyScope->getType($stmt->cond) : $bodyScope->getNativeType($stmt->cond))->toBoolean();
1551:	$alwaysIterates = $condBooleanType->isTrue()->yes() && $context->isTopLevel();
1552:
1553:	$nodeCallback(new DoWhileLoopConditionNode($stmt->cond, $bodyScopeResult->toPublic()->getExitPoints()), $bodyScope);
1554:
1555:	if ($alwaysIterates) {
1556:	$alwaysTerminating = count($bodyScopeResult->getExitPointsByType(Break_::class)) === 0;
1557:	} else {
1558:	$alwaysTerminating = $bodyScopeResult->isAlwaysTerminating();
1559:	}
1560:	$finalScope = $alwaysTerminating ? $finalScope : $bodyScope->mergeWith($finalScope);
1561:	if ($finalScope === null) {
1562:	$finalScope = $scope;
1563:	}
1564:	if (!$alwaysTerminating) {
1565:	$condResult = $this->processExprNode($stmt, $stmt->cond, $bodyScope, $nodeCallback, ExpressionContext::createDeep());
1566:	$hasYield = $condResult->hasYield();
1567:	$throwPoints = $condResult->getThrowPoints();
1568:	$impurePoints = $condResult->getImpurePoints();
1569:	$finalScope = $condResult->getFalseyScope();
1570:	} else {
1571:	$this->processExprNode($stmt, $stmt->cond, $bodyScope, $nodeCallback, ExpressionContext::createDeep());
1572:	}
1573:	foreach ($bodyScopeResult->getExitPointsByType(Break_::class) as $breakExitPoint) {
1574:	$finalScope = $breakExitPoint->getScope()->mergeWith($finalScope);
1575:	}
1576:
1577:	return new InternalStatementResult(
1578:	$finalScope,
1579:	$bodyScopeResult->hasYield() \|\| $hasYield,
1580:	$alwaysTerminating,
1581:	$bodyScopeResult->getExitPointsForOuterLoop(),
1582:	array_merge($throwPoints, $bodyScopeResult->getThrowPoints()),
1583:	array_merge($impurePoints, $bodyScopeResult->getImpurePoints()),
1584:	);
1585:	} elseif ($stmt instanceof For_) {
1586:	$initScope = $scope;
1587:	$hasYield = false;
1588:	$throwPoints = [];
1589:	$impurePoints = [];
1590:	foreach ($stmt->init as $initExpr) {
1591:	$initResult = $this->processExprNode($stmt, $initExpr, $initScope, $nodeCallback, ExpressionContext::createTopLevel());
1592:	$initScope = $initResult->getScope();
1593:	$hasYield = $hasYield \|\| $initResult->hasYield();
1594:	$throwPoints = array_merge($throwPoints, $initResult->getThrowPoints());
1595:	$impurePoints = array_merge($impurePoints, $initResult->getImpurePoints());
1596:	}
1597:
1598:	$bodyScope = $initScope;
1599:	$isIterableAtLeastOnce = TrinaryLogic::createYes();
1600:	$lastCondExpr = array_last($stmt->cond) ?? null;
1601:	foreach ($stmt->cond as $condExpr) {
1602:	$condResult = $this->processExprNode($stmt, $condExpr, $bodyScope, static function (): void {
1603:	}, ExpressionContext::createDeep());
1604:	$initScope = $condResult->getScope();
1605:	$condResultScope = $condResult->getScope();
1606:
1607:	// only the last condition expression is relevant whether the loop continues
1608:	// see https://www.php.net/manual/en/control-structures.for.php
1609:	if ($condExpr === $lastCondExpr) {
1610:	$condTruthiness = ($this->treatPhpDocTypesAsCertain ? $condResultScope->getType($condExpr) : $condResultScope->getNativeType($condExpr))->toBoolean();
1611:	$isIterableAtLeastOnce = $isIterableAtLeastOnce->and($condTruthiness->isTrue());
1612:	}
1613:
1614:	$hasYield = $hasYield \|\| $condResult->hasYield();
1615:	$throwPoints = array_merge($throwPoints, $condResult->getThrowPoints());
1616:	$impurePoints = array_merge($impurePoints, $condResult->getImpurePoints());
1617:	$bodyScope = $condResult->getTruthyScope();
1618:	}
1619:
1620:	if ($context->isTopLevel()) {
1621:	$count = 0;
1622:	do {
1623:	$prevScope = $bodyScope;
1624:	$bodyScope = $bodyScope->mergeWith($initScope);
1625:	if ($lastCondExpr !== null) {
1626:	$bodyScope = $this->processExprNode($stmt, $lastCondExpr, $bodyScope, static function (): void {
1627:	}, ExpressionContext::createDeep())->getTruthyScope();
1628:	}
1629:	$bodyScopeResult = $this->processStmtNodesInternal($stmt, $stmt->stmts, $bodyScope, static function (): void {
1630:	}, $context->enterDeep())->filterOutLoopExitPoints();
1631:	$bodyScope = $bodyScopeResult->getScope();
1632:	foreach ($bodyScopeResult->getExitPointsByType(Continue_::class) as $continueExitPoint) {
1633:	$bodyScope = $bodyScope->mergeWith($continueExitPoint->getScope());
1634:	}
1635:
1636:	foreach ($stmt->loop as $loopExpr) {
1637:	$exprResult = $this->processExprNode($stmt, $loopExpr, $bodyScope, static function (): void {
1638:	}, ExpressionContext::createTopLevel());
1639:	$bodyScope = $exprResult->getScope();
1640:	$hasYield = $hasYield \|\| $exprResult->hasYield();
1641:	$throwPoints = array_merge($throwPoints, $exprResult->getThrowPoints());
1642:	$impurePoints = array_merge($impurePoints, $exprResult->getImpurePoints());
1643:	}
1644:
1645:	if ($bodyScope->equals($prevScope)) {
1646:	break;
1647:	}
1648:
1649:	if ($count >= self::GENERALIZE_AFTER_ITERATION) {
1650:	$bodyScope = $prevScope->generalizeWith($bodyScope);
1651:	}
1652:	$count++;
1653:	} while ($count < self::LOOP_SCOPE_ITERATIONS);
1654:	}
1655:
1656:	$bodyScope = $bodyScope->mergeWith($initScope);
1657:
1658:	$alwaysIterates = TrinaryLogic::createFromBoolean($context->isTopLevel());
1659:	if ($lastCondExpr !== null) {
1660:	$alwaysIterates = $alwaysIterates->and($bodyScope->getType($lastCondExpr)->toBoolean()->isTrue());
1661:	$bodyScope = $this->processExprNode($stmt, $lastCondExpr, $bodyScope, $nodeCallback, ExpressionContext::createDeep())->getTruthyScope();
1662:	$bodyScope = $this->inferForLoopExpressions($stmt, $lastCondExpr, $bodyScope);
1663:	}
1664:
1665:	$finalScopeResult = $this->processStmtNodesInternal($stmt, $stmt->stmts, $bodyScope, $nodeCallback, $context)->filterOutLoopExitPoints();
1666:	$finalScope = $finalScopeResult->getScope();
1667:	foreach ($finalScopeResult->getExitPointsByType(Continue_::class) as $continueExitPoint) {
1668:	$finalScope = $continueExitPoint->getScope()->mergeWith($finalScope);
1669:	}
1670:
1671:	$loopScope = $finalScope;
1672:	foreach ($stmt->loop as $loopExpr) {
1673:	$loopScope = $this->processExprNode($stmt, $loopExpr, $loopScope, $nodeCallback, ExpressionContext::createTopLevel())->getScope();
1674:	}
1675:	$finalScope = $finalScope->generalizeWith($loopScope);
1676:
1677:	if ($lastCondExpr !== null) {
1678:	$finalScope = $finalScope->filterByFalseyValue($lastCondExpr);
1679:	}
1680:
1681:	foreach ($finalScopeResult->getExitPointsByType(Break_::class) as $breakExitPoint) {
1682:	$finalScope = $breakExitPoint->getScope()->mergeWith($finalScope);
1683:	}
1684:
1685:	if ($isIterableAtLeastOnce->no() \|\| $finalScopeResult->isAlwaysTerminating()) {
1686:	if ($this->polluteScopeWithLoopInitialAssignments) {
1687:	$finalScope = $initScope;
1688:	} else {
1689:	$finalScope = $scope;
1690:	}
1691:
1692:	} elseif ($isIterableAtLeastOnce->maybe()) {
1693:	if ($this->polluteScopeWithLoopInitialAssignments) {
1694:	$finalScope = $finalScope->mergeWith($initScope);
1695:	} else {
1696:	$finalScope = $finalScope->mergeWith($scope);
1697:	}
1698:	} else {
1699:	if (!$this->polluteScopeWithLoopInitialAssignments) {
1700:	$finalScope = $finalScope->mergeWith($scope);
1701:	}
1702:	}
1703:
1704:	if ($alwaysIterates->yes()) {
1705:	$isAlwaysTerminating = count($finalScopeResult->getExitPointsByType(Break_::class)) === 0;
1706:	} elseif ($isIterableAtLeastOnce->yes()) {
1707:	$isAlwaysTerminating = $finalScopeResult->isAlwaysTerminating();
1708:	} else {
1709:	$isAlwaysTerminating = false;
1710:	}
1711:
1712:	return new InternalStatementResult(
1713:	$finalScope,
1714:	$finalScopeResult->hasYield() \|\| $hasYield,
1715:	$isAlwaysTerminating,
1716:	$finalScopeResult->getExitPointsForOuterLoop(),
1717:	array_merge($throwPoints, $finalScopeResult->getThrowPoints()),
1718:	array_merge($impurePoints, $finalScopeResult->getImpurePoints()),
1719:	);
1720:	} elseif ($stmt instanceof Switch_) {
1721:	$condResult = $this->processExprNode($stmt, $stmt->cond, $scope, $nodeCallback, ExpressionContext::createDeep());
1722:	$scope = $condResult->getScope();
1723:	$scopeForBranches = $scope;
1724:	$finalScope = null;
1725:	$prevScope = null;
1726:	$hasDefaultCase = false;
1727:	$alwaysTerminating = true;
1728:	$hasYield = $condResult->hasYield();
1729:	$exitPointsForOuterLoop = [];
1730:	$throwPoints = $condResult->getThrowPoints();
1731:	$impurePoints = $condResult->getImpurePoints();
1732:	$fullCondExpr = null;
1733:	foreach ($stmt->cases as $caseNode) {
1734:	if ($caseNode->cond !== null) {
1735:	$condExpr = new BinaryOp\Equal($stmt->cond, $caseNode->cond);
1736:	$fullCondExpr = $fullCondExpr === null ? $condExpr : new BooleanOr($fullCondExpr, $condExpr);
1737:	$caseResult = $this->processExprNode($stmt, $caseNode->cond, $scopeForBranches, $nodeCallback, ExpressionContext::createDeep());
1738:	$scopeForBranches = $caseResult->getScope();
1739:	$hasYield = $hasYield \|\| $caseResult->hasYield();
1740:	$throwPoints = array_merge($throwPoints, $caseResult->getThrowPoints());
1741:	$impurePoints = array_merge($impurePoints, $caseResult->getImpurePoints());
1742:	$branchScope = $caseResult->getTruthyScope()->filterByTruthyValue($condExpr);
1743:	} else {
1744:	$hasDefaultCase = true;
1745:	$fullCondExpr = null;
1746:	$branchScope = $scopeForBranches;
1747:	}
1748:
1749:	$branchScope = $branchScope->mergeWith($prevScope);
1750:	$branchScopeResult = $this->processStmtNodesInternal($caseNode, $caseNode->stmts, $branchScope, $nodeCallback, $context);
1751:	$branchScope = $branchScopeResult->getScope();
1752:	$branchFinalScopeResult = $branchScopeResult->filterOutLoopExitPoints();
1753:	$hasYield = $hasYield \|\| $branchFinalScopeResult->hasYield();
1754:	foreach ($branchScopeResult->getExitPointsByType(Break_::class) as $breakExitPoint) {
1755:	$alwaysTerminating = false;
1756:	$finalScope = $breakExitPoint->getScope()->mergeWith($finalScope);
1757:	}
1758:	foreach ($branchScopeResult->getExitPointsByType(Continue_::class) as $continueExitPoint) {
1759:	$finalScope = $continueExitPoint->getScope()->mergeWith($finalScope);
1760:	}
1761:	$exitPointsForOuterLoop = array_merge($exitPointsForOuterLoop, $branchFinalScopeResult->getExitPointsForOuterLoop());
1762:	$throwPoints = array_merge($throwPoints, $branchFinalScopeResult->getThrowPoints());
1763:	$impurePoints = array_merge($impurePoints, $branchFinalScopeResult->getImpurePoints());
1764:	if ($branchScopeResult->isAlwaysTerminating()) {
1765:	$alwaysTerminating = $alwaysTerminating && $branchFinalScopeResult->isAlwaysTerminating();
1766:	$prevScope = null;
1767:	if (isset($fullCondExpr)) {
1768:	$scopeForBranches = $scopeForBranches->filterByFalseyValue($fullCondExpr);
1769:	$fullCondExpr = null;
1770:	}
1771:	if (!$branchFinalScopeResult->isAlwaysTerminating()) {
1772:	$finalScope = $branchScope->mergeWith($finalScope);
1773:	}
1774:	} else {
1775:	$prevScope = $branchScope;
1776:	}
1777:	}
1778:
1779:	$exhaustive = $scopeForBranches->getType($stmt->cond) instanceof NeverType;
1780:
1781:	if (!$hasDefaultCase && !$exhaustive) {
1782:	$alwaysTerminating = false;
1783:	}
1784:
1785:	if ($prevScope !== null && isset($branchFinalScopeResult)) {
1786:	$finalScope = $prevScope->mergeWith($finalScope);
1787:	$alwaysTerminating = $alwaysTerminating && $branchFinalScopeResult->isAlwaysTerminating();
1788:	}
1789:
1790:	if ((!$hasDefaultCase && !$exhaustive) \|\| $finalScope === null) {
1791:	$finalScope = $scope->mergeWith($finalScope);
1792:	}
1793:
1794:	return new InternalStatementResult($finalScope, $hasYield, $alwaysTerminating, $exitPointsForOuterLoop, $throwPoints, $impurePoints);
1795:	} elseif ($stmt instanceof TryCatch) {
1796:	$branchScopeResult = $this->processStmtNodesInternal($stmt, $stmt->stmts, $scope, $nodeCallback, $context);
1797:	$branchScope = $branchScopeResult->getScope();
1798:	$finalScope = $branchScopeResult->isAlwaysTerminating() ? null : $branchScope;
1799:
1800:	$exitPoints = [];
1801:	$finallyExitPoints = [];
1802:	$alwaysTerminating = $branchScopeResult->isAlwaysTerminating();
1803:	$hasYield = $branchScopeResult->hasYield();
1804:
1805:	if ($stmt->finally !== null) {
1806:	$finallyScope = $branchScope;
1807:	} else {
1808:	$finallyScope = null;
1809:	}
1810:	foreach ($branchScopeResult->getExitPoints() as $exitPoint) {
1811:	$finallyExitPoints[] = $exitPoint->toPublic();
1812:	if ($exitPoint->getStatement() instanceof Node\Stmt\Expression && $exitPoint->getStatement()->expr instanceof Expr\Throw_) {
1813:	continue;
1814:	}
1815:	if ($finallyScope !== null) {
1816:	$finallyScope = $finallyScope->mergeWith($exitPoint->getScope());
1817:	}
1818:	$exitPoints[] = $exitPoint;
1819:	}
1820:
1821:	$throwPoints = $branchScopeResult->getThrowPoints();
1822:	$impurePoints = $branchScopeResult->getImpurePoints();
1823:	$throwPointsForLater = [];
1824:	$pastCatchTypes = new NeverType();
1825:
1826:	foreach ($stmt->catches as $catchNode) {
1827:	$nodeCallback($catchNode, $scope);
1828:
1829:	$originalCatchTypes = array_map(static fn (Name $name): Type => new ObjectType($name->toString()), $catchNode->types);
1830:	$catchTypes = array_map(static fn (Type $type): Type => TypeCombinator::remove($type, $pastCatchTypes), $originalCatchTypes);
1831:
1832:	$originalCatchType = TypeCombinator::union(...$originalCatchTypes);
1833:	$catchType = TypeCombinator::union(...$catchTypes);
1834:	$pastCatchTypes = TypeCombinator::union($pastCatchTypes, $originalCatchType);
1835:
1836:	$matchingThrowPoints = [];
1837:	$matchingCatchTypes = array_fill_keys(array_keys($originalCatchTypes), false);
1838:
1839:	// throwable matches all
1840:	foreach ($originalCatchTypes as $catchTypeIndex => $catchTypeItem) {
1841:	if (!$catchTypeItem->isSuperTypeOf(new ObjectType(Throwable::class))->yes()) {
1842:	continue;
1843:	}
1844:
1845:	foreach ($throwPoints as $throwPointIndex => $throwPoint) {
1846:	$matchingThrowPoints[$throwPointIndex] = $throwPoint;
1847:	$matchingCatchTypes[$catchTypeIndex] = true;
1848:	}
1849:	}
1850:
1851:	// explicit only
1852:	$onlyExplicitIsThrow = true;
1853:	if (count($matchingThrowPoints) === 0) {
1854:	foreach ($throwPoints as $throwPointIndex => $throwPoint) {
1855:	foreach ($catchTypes as $catchTypeIndex => $catchTypeItem) {
1856:	if ($catchTypeItem->isSuperTypeOf($throwPoint->getType())->no()) {
1857:	continue;
1858:	}
1859:
1860:	$matchingCatchTypes[$catchTypeIndex] = true;
1861:	if (!$throwPoint->isExplicit()) {
1862:	continue;
1863:	}
1864:	$throwNode = $throwPoint->getNode();
1865:	if (
1866:	!$throwNode instanceof Expr\Throw_
1867:	&& !($throwNode instanceof Node\Stmt\Expression && $throwNode->expr instanceof Expr\Throw_)
1868:	) {
1869:	$onlyExplicitIsThrow = false;
1870:	}
1871:	$matchingThrowPoints[$throwPointIndex] = $throwPoint;
1872:	}
1873:	}
1874:	}
1875:
1876:	// implicit only
1877:	if (count($matchingThrowPoints) === 0 \|\| $onlyExplicitIsThrow) {
1878:	foreach ($throwPoints as $throwPointIndex => $throwPoint) {
1879:	if ($throwPoint->isExplicit()) {
1880:	continue;
1881:	}
1882:
1883:	foreach ($catchTypes as $catchTypeIndex => $catchTypeItem) {
1884:	if ($catchTypeItem->isSuperTypeOf($throwPoint->getType())->no()) {
1885:	continue;
1886:	}
1887:
1888:	$matchingThrowPoints[$throwPointIndex] = $throwPoint;
1889:	}
1890:	}
1891:	}
1892:
1893:	// include previously removed throw points
1894:	if (count($matchingThrowPoints) === 0) {
1895:	if ($originalCatchType->isSuperTypeOf(new ObjectType(Throwable::class))->yes()) {
1896:	foreach ($branchScopeResult->getThrowPoints() as $originalThrowPoint) {
1897:	if (!$originalThrowPoint->canContainAnyThrowable()) {
1898:	continue;
1899:	}
1900:
1901:	$matchingThrowPoints[] = $originalThrowPoint;
1902:	$matchingCatchTypes = array_fill_keys(array_keys($originalCatchTypes), true);
1903:	}
1904:	}
1905:	}
1906:
1907:	// emit error
1908:	foreach ($matchingCatchTypes as $catchTypeIndex => $matched) {
1909:	if ($matched) {
1910:	continue;
1911:	}
1912:	$nodeCallback(new CatchWithUnthrownExceptionNode($catchNode, $catchTypes[$catchTypeIndex], $originalCatchTypes[$catchTypeIndex]), $scope);
1913:	}
1914:
1915:	if (count($matchingThrowPoints) === 0) {
1916:	continue;
1917:	}
1918:
1919:	// recompute throw points
1920:	$newThrowPoints = [];
1921:	foreach ($throwPoints as $throwPoint) {
1922:	$newThrowPoint = $throwPoint->subtractCatchType($originalCatchType);
1923:
1924:	if ($newThrowPoint->getType() instanceof NeverType) {
1925:	continue;
1926:	}
1927:
1928:	$newThrowPoints[] = $newThrowPoint;
1929:	}
1930:	$throwPoints = $newThrowPoints;
1931:
1932:	$catchScope = null;
1933:	foreach ($matchingThrowPoints as $matchingThrowPoint) {
1934:	if ($catchScope === null) {
1935:	$catchScope = $matchingThrowPoint->getScope();
1936:	} else {
1937:	$catchScope = $catchScope->mergeWith($matchingThrowPoint->getScope());
1938:	}
1939:	}
1940:
1941:	$variableName = null;
1942:	if ($catchNode->var !== null) {
1943:	if (!is_string($catchNode->var->name)) {
1944:	throw new ShouldNotHappenException();
1945:	}
1946:
1947:	$variableName = $catchNode->var->name;
1948:	}
1949:
1950:	$catchScopeResult = $this->processStmtNodesInternal($catchNode, $catchNode->stmts, $catchScope->enterCatchType($catchType, $variableName), $nodeCallback, $context);
1951:	$catchScopeForFinally = $catchScopeResult->getScope();
1952:
1953:	$finalScope = $catchScopeResult->isAlwaysTerminating() ? $finalScope : $catchScopeResult->getScope()->mergeWith($finalScope);
1954:	$alwaysTerminating = $alwaysTerminating && $catchScopeResult->isAlwaysTerminating();
1955:	$hasYield = $hasYield \|\| $catchScopeResult->hasYield();
1956:	$catchThrowPoints = $catchScopeResult->getThrowPoints();
1957:	$impurePoints = array_merge($impurePoints, $catchScopeResult->getImpurePoints());
1958:	$throwPointsForLater = array_merge($throwPointsForLater, $catchThrowPoints);
1959:
1960:	if ($finallyScope !== null) {
1961:	$finallyScope = $finallyScope->mergeWith($catchScopeForFinally);
1962:	}
1963:	foreach ($catchScopeResult->getExitPoints() as $exitPoint) {
1964:	$finallyExitPoints[] = $exitPoint->toPublic();
1965:	if ($exitPoint->getStatement() instanceof Node\Stmt\Expression && $exitPoint->getStatement()->expr instanceof Expr\Throw_) {
1966:	continue;
1967:	}
1968:	if ($finallyScope !== null) {
1969:	$finallyScope = $finallyScope->mergeWith($exitPoint->getScope());
1970:	}
1971:	$exitPoints[] = $exitPoint;
1972:	}
1973:
1974:	foreach ($catchThrowPoints as $catchThrowPoint) {
1975:	if ($finallyScope === null) {
1976:	continue;
1977:	}
1978:	$finallyScope = $finallyScope->mergeWith($catchThrowPoint->getScope());
1979:	}
1980:	}
1981:
1982:	if ($finalScope === null) {
1983:	$finalScope = $scope;
1984:	}
1985:
1986:	foreach ($throwPoints as $throwPoint) {
1987:	if ($finallyScope === null) {
1988:	continue;
1989:	}
1990:	$finallyScope = $finallyScope->mergeWith($throwPoint->getScope());
1991:	}
1992:
1993:	if ($finallyScope !== null) {
1994:	$originalFinallyScope = $finallyScope;
1995:	$finallyResult = $this->processStmtNodesInternal($stmt->finally, $stmt->finally->stmts, $finallyScope, $nodeCallback, $context);
1996:	$alwaysTerminating = $alwaysTerminating \|\| $finallyResult->isAlwaysTerminating();
1997:	$hasYield = $hasYield \|\| $finallyResult->hasYield();
1998:	$throwPointsForLater = array_merge($throwPointsForLater, $finallyResult->getThrowPoints());
1999:	$impurePoints = array_merge($impurePoints, $finallyResult->getImpurePoints());
2000:	$finallyScope = $finallyResult->getScope();
2001:	$finalScope = $finallyResult->isAlwaysTerminating() ? $finalScope : $finalScope->processFinallyScope($finallyScope, $originalFinallyScope);
2002:	if (count($finallyResult->getExitPoints()) > 0) {
2003:	$nodeCallback(new FinallyExitPointsNode(
2004:	$finallyResult->toPublic()->getExitPoints(),
2005:	$finallyExitPoints,
2006:	), $scope);
2007:	}
2008:	$exitPoints = array_merge($exitPoints, $finallyResult->getExitPoints());
2009:	}
2010:
2011:	return new InternalStatementResult($finalScope, $hasYield, $alwaysTerminating, $exitPoints, array_merge($throwPoints, $throwPointsForLater), $impurePoints);
2012:	} elseif ($stmt instanceof Unset_) {
2013:	$hasYield = false;
2014:	$throwPoints = [];
2015:	$impurePoints = [];
2016:	foreach ($stmt->vars as $var) {
2017:	$scope = $this->lookForSetAllowedUndefinedExpressions($scope, $var);
2018:	$exprResult = $this->processExprNode($stmt, $var, $scope, $nodeCallback, ExpressionContext::createDeep());
2019:	$scope = $exprResult->getScope();
2020:	$scope = $this->lookForUnsetAllowedUndefinedExpressions($scope, $var);
2021:	$hasYield = $hasYield \|\| $exprResult->hasYield();
2022:	$throwPoints = array_merge($throwPoints, $exprResult->getThrowPoints());
2023:	$impurePoints = array_merge($impurePoints, $exprResult->getImpurePoints());
2024:	if ($var instanceof ArrayDimFetch && $var->dim !== null) {
2025:	$cloningTraverser = new NodeTraverser();
2026:	$cloningTraverser->addVisitor(new CloningVisitor());
2027:
2028:	/** @var Expr $clonedVar */
2029:	[$clonedVar] = $cloningTraverser->traverse([$var->var]);
2030:
2031:	$traverser = new NodeTraverser();
2032:	$traverser->addVisitor(new class () extends NodeVisitorAbstract {
2033:
2034:	#[Override]
2035:	public function leaveNode(Node $node): ?ExistingArrayDimFetch
2036:	{
2037:	if (!$node instanceof ArrayDimFetch \|\| $node->dim === null) {
2038:	return null;
2039:	}
2040:
2041:	return new ExistingArrayDimFetch($node->var, $node->dim);
2042:	}
2043:
2044:	});
2045:
2046:	/** @var Expr $clonedVar */
2047:	[$clonedVar] = $traverser->traverse([$clonedVar]);
2048:	$scope = $this->processVirtualAssign($scope, $stmt, $clonedVar, new UnsetOffsetExpr($var->var, $var->dim), $nodeCallback)->getScope();
2049:	} elseif ($var instanceof PropertyFetch) {
2050:	$scope = $scope->invalidateExpression($var);
2051:	$impurePoints[] = new ImpurePoint(
2052:	$scope,
2053:	$var,
2054:	'propertyUnset',
2055:	'property unset',
2056:	true,
2057:	);
2058:	} else {
2059:	$scope = $scope->invalidateExpression($var);
2060:	}
2061:
2062:	$scope = $scope->invalidateExpression(new ForeachValueByRefExpr($var));
2063:	}
2064:	} elseif ($stmt instanceof Node\Stmt\Use_) {
2065:	$hasYield = false;
2066:	$throwPoints = [];
2067:	$impurePoints = [];
2068:	foreach ($stmt->uses as $use) {
2069:	$nodeCallback($use, $scope);
2070:	}
2071:	} elseif ($stmt instanceof Node\Stmt\Global_) {
2072:	$hasYield = false;
2073:	$throwPoints = [];
2074:	$impurePoints = [
2075:	new ImpurePoint(
2076:	$scope,
2077:	$stmt,
2078:	'global',
2079:	'global variable',
2080:	true,
2081:	),
2082:	];
2083:	$vars = [];
2084:	foreach ($stmt->vars as $var) {
2085:	if (!$var instanceof Variable) {
2086:	throw new ShouldNotHappenException();
2087:	}
2088:	$scope = $this->lookForSetAllowedUndefinedExpressions($scope, $var);
2089:	$varResult = $this->processExprNode($stmt, $var, $scope, $nodeCallback, ExpressionContext::createDeep());
2090:	$impurePoints = array_merge($impurePoints, $varResult->getImpurePoints());
2091:	$scope = $this->lookForUnsetAllowedUndefinedExpressions($scope, $var);
2092:
2093:	if (!is_string($var->name)) {
2094:	continue;
2095:	}
2096:
2097:	$scope = $scope->assignVariable($var->name, new MixedType(), new MixedType(), TrinaryLogic::createYes());
2098:	$vars[] = $var->name;
2099:	}
2100:	$scope = $this->processVarAnnotation($scope, $vars, $stmt);
2101:	} elseif ($stmt instanceof Static_) {
2102:	$hasYield = false;
2103:	$throwPoints = [];
2104:	$impurePoints = [
2105:	new ImpurePoint(
2106:	$scope,
2107:	$stmt,
2108:	'static',
2109:	'static variable',
2110:	true,
2111:	),
2112:	];
2113:
2114:	$vars = [];
2115:	foreach ($stmt->vars as $var) {
2116:	if (!is_string($var->var->name)) {
2117:	throw new ShouldNotHappenException();
2118:	}
2119:
2120:	if ($var->default !== null) {
2121:	$defaultExprResult = $this->processExprNode($stmt, $var->default, $scope, $nodeCallback, ExpressionContext::createDeep());
2122:	$impurePoints = array_merge($impurePoints, $defaultExprResult->getImpurePoints());
2123:	}
2124:
2125:	$scope = $scope->enterExpressionAssign($var->var);
2126:	$varResult = $this->processExprNode($stmt, $var->var, $scope, $nodeCallback, ExpressionContext::createDeep());
2127:	$impurePoints = array_merge($impurePoints, $varResult->getImpurePoints());
2128:	$scope = $scope->exitExpressionAssign($var->var);
2129:
2130:	$scope = $scope->assignVariable($var->var->name, new MixedType(), new MixedType(), TrinaryLogic::createYes());
2131:	$vars[] = $var->var->name;
2132:	}
2133:
2134:	$scope = $this->processVarAnnotation($scope, $vars, $stmt);
2135:	} elseif ($stmt instanceof Node\Stmt\Const_) {
2136:	$hasYield = false;
2137:	$throwPoints = [];
2138:	$impurePoints = [];
2139:	foreach ($stmt->consts as $const) {
2140:	$nodeCallback($const, $scope);
2141:	$constResult = $this->processExprNode($stmt, $const->value, $scope, $nodeCallback, ExpressionContext::createDeep());
2142:	$impurePoints = array_merge($impurePoints, $constResult->getImpurePoints());
2143:	if ($const->namespacedName !== null) {
2144:	$constantName = new Name\FullyQualified($const->namespacedName->toString());
2145:	} else {
2146:	$constantName = new Name\FullyQualified($const->name->toString());
2147:	}
2148:	$scope = $scope->assignExpression(new ConstFetch($constantName), $scope->getType($const->value), $scope->getNativeType($const->value));
2149:	}
2150:	} elseif ($stmt instanceof Node\Stmt\ClassConst) {
2151:	$hasYield = false;
2152:	$throwPoints = [];
2153:	$impurePoints = [];
2154:	$this->processAttributeGroups($stmt, $stmt->attrGroups, $scope, $nodeCallback);
2155:	foreach ($stmt->consts as $const) {
2156:	$nodeCallback($const, $scope);
2157:	$constResult = $this->processExprNode($stmt, $const->value, $scope, $nodeCallback, ExpressionContext::createDeep());
2158:	$impurePoints = array_merge($impurePoints, $constResult->getImpurePoints());
2159:	if ($scope->getClassReflection() === null) {
2160:	throw new ShouldNotHappenException();
2161:	}
2162:	$scope = $scope->assignExpression(
2163:	new Expr\ClassConstFetch(new Name\FullyQualified($scope->getClassReflection()->getName()), $const->name),
2164:	$scope->getType($const->value),
2165:	$scope->getNativeType($const->value),
2166:	);
2167:	}
2168:	} elseif ($stmt instanceof Node\Stmt\EnumCase) {
2169:	$hasYield = false;
2170:	$throwPoints = [];
2171:	$this->processAttributeGroups($stmt, $stmt->attrGroups, $scope, $nodeCallback);
2172:	$impurePoints = [];
2173:	if ($stmt->expr !== null) {
2174:	$exprResult = $this->processExprNode($stmt, $stmt->expr, $scope, $nodeCallback, ExpressionContext::createDeep());
2175:	$impurePoints = $exprResult->getImpurePoints();
2176:	}
2177:	} elseif ($stmt instanceof InlineHTML) {
2178:	$hasYield = false;
2179:	$throwPoints = [];
2180:	$impurePoints = [
2181:	new ImpurePoint($scope, $stmt, 'betweenPhpTags', 'output between PHP opening and closing tags', true),
2182:	];
2183:	} elseif ($stmt instanceof Node\Stmt\Block) {
2184:	$result = $this->processStmtNodesInternal($stmt, $stmt->stmts, $scope, $nodeCallback, $context);
2185:	if ($this->polluteScopeWithBlock) {
2186:	return $result;
2187:	}
2188:
2189:	return new InternalStatementResult(
2190:	$scope->mergeWith($result->getScope()),
2191:	$result->hasYield(),
2192:	$result->isAlwaysTerminating(),
2193:	$result->getExitPoints(),
2194:	$result->getThrowPoints(),
2195:	$result->getImpurePoints(),
2196:	$result->getEndStatements(),
2197:	);
2198:	} elseif ($stmt instanceof Node\Stmt\Nop) {
2199:	$hasYield = false;
2200:	$throwPoints = $overridingThrowPoints ?? [];
2201:	$impurePoints = [];
2202:	} elseif ($stmt instanceof Node\Stmt\GroupUse) {
2203:	$hasYield = false;
2204:	$throwPoints = [];
2205:	foreach ($stmt->uses as $use) {
2206:	$nodeCallback($use, $scope);
2207:	}
2208:	$impurePoints = [];
2209:	} else {
2210:	$hasYield = false;
2211:	$throwPoints = $overridingThrowPoints ?? [];
2212:	$impurePoints = [];
2213:	}
2214:
2215:	return new InternalStatementResult($scope, $hasYield, false, [], $throwPoints, $impurePoints);
2216:	}
2217:
2218:	/**
2219:	* @return array{bool, string\|null}
2220:	*/
2221:	private function getDeprecatedAttribute(Scope $scope, Node\Stmt\Function_\|Node\Stmt\ClassMethod\|Node\PropertyHook $stmt): array
2222:	{
2223:	$initializerExprContext = InitializerExprContext::fromStubParameter(
2224:	$scope->isInClass() ? $scope->getClassReflection()->getName() : null,
2225:	$scope->getFile(),
2226:	$stmt,
2227:	);
2228:	$isDeprecated = false;
2229:	$deprecatedDescription = null;
2230:	$deprecatedDescriptionType = null;
2231:	foreach ($stmt->attrGroups as $attrGroup) {
2232:	foreach ($attrGroup->attrs as $attr) {
2233:	if ($attr->name->toString() !== 'Deprecated') {
2234:	continue;
2235:	}
2236:	$isDeprecated = true;
2237:	$arguments = $attr->args;
2238:	foreach ($arguments as $i => $arg) {
2239:	$argName = $arg->name;
2240:	if ($argName === null) {
2241:	if ($i !== 0) {
2242:	continue;
2243:	}
2244:
2245:	$deprecatedDescriptionType = $this->initializerExprTypeResolver->getType($arg->value, $initializerExprContext);
2246:	break;
2247:	}
2248:
2249:	if ($argName->toString() !== 'message') {
2250:	continue;
2251:	}
2252:
2253:	$deprecatedDescriptionType = $this->initializerExprTypeResolver->getType($arg->value, $initializerExprContext);
2254:	break;
2255:	}
2256:	}
2257:	}
2258:
2259:	if ($deprecatedDescriptionType !== null) {
2260:	$constantStrings = $deprecatedDescriptionType->getConstantStrings();
2261:	if (count($constantStrings) === 1) {
2262:	$deprecatedDescription = $constantStrings[0]->getValue();
2263:	}
2264:	}
2265:
2266:	return [$isDeprecated, $deprecatedDescription];
2267:	}
2268:
2269:	/**
2270:	* @return InternalThrowPoint[]\|null
2271:	*/
2272:	private function getOverridingThrowPoints(Node\Stmt $statement, MutatingScope $scope): ?array
2273:	{
2274:	foreach ($statement->getComments() as $comment) {
2275:	if (!$comment instanceof Doc) {
2276:	continue;
2277:	}
2278:
2279:	$function = $scope->getFunction();
2280:	$resolvedPhpDoc = $this->fileTypeMapper->getResolvedPhpDoc(
2281:	$scope->getFile(),
2282:	$scope->isInClass() ? $scope->getClassReflection()->getName() : null,
2283:	$scope->isInTrait() ? $scope->getTraitReflection()->getName() : null,
2284:	$function !== null ? $function->getName() : null,
2285:	$comment->getText(),
2286:	);
2287:
2288:	$throwsTag = $resolvedPhpDoc->getThrowsTag();
2289:	if ($throwsTag !== null) {
2290:	$throwsType = $throwsTag->getType();
2291:	if ($throwsType->isVoid()->yes()) {
2292:	return [];
2293:	}
2294:
2295:	return [InternalThrowPoint::createExplicit($scope, $throwsType, $statement, false)];
2296:	}
2297:	}
2298:
2299:	return null;
2300:	}
2301:
2302:	private function getCurrentClassReflection(Node\Stmt\ClassLike $stmt, string $className, Scope $scope): ClassReflection
2303:	{
2304:	if (!$this->reflectionProvider->hasClass($className)) {
2305:	return $this->createAstClassReflection($stmt, $className, $scope);
2306:	}
2307:
2308:	$defaultClassReflection = $this->reflectionProvider->getClass($className);
2309:	if ($defaultClassReflection->getFileName() !== $scope->getFile()) {
2310:	return $this->createAstClassReflection($stmt, $className, $scope);
2311:	}
2312:
2313:	$startLine = $defaultClassReflection->getNativeReflection()->getStartLine();
2314:	if ($startLine !== $stmt->getStartLine()) {
2315:	return $this->createAstClassReflection($stmt, $className, $scope);
2316:	}
2317:
2318:	return $defaultClassReflection;
2319:	}
2320:
2321:	private function createAstClassReflection(Node\Stmt\ClassLike $stmt, string $className, Scope $scope): ClassReflection
2322:	{
2323:	$nodeToReflection = new NodeToReflection();
2324:	$betterReflectionClass = $nodeToReflection->__invoke(
2325:	$this->reflector,
2326:	$stmt,
2327:	new LocatedSource(FileReader::read($scope->getFile()), $className, $scope->getFile()),
2328:	$scope->getNamespace() !== null ? new Node\Stmt\Namespace_(new Name($scope->getNamespace())) : null,
2329:	);
2330:	if (!$betterReflectionClass instanceof \PHPStan\BetterReflection\Reflection\ReflectionClass) {
2331:	throw new ShouldNotHappenException();
2332:	}
2333:
2334:	$enumAdapter = base64_decode('UEhQU3RhblxCZXR0ZXJSZWZsZWN0aW9uXFJlZmxlY3Rpb25cQWRhcHRlclxSZWZsZWN0aW9uRW51bQ==', true);
2335:
2336:	return $this->classReflectionFactory->create(
2337:	$betterReflectionClass->getName(),
2338:	$betterReflectionClass instanceof ReflectionEnum && PHP_VERSION_ID >= 80000 ? new $enumAdapter($betterReflectionClass) : new ReflectionClass($betterReflectionClass),
2339:	null,
2340:	null,
2341:	null,
2342:	sprintf('%s:%d', $scope->getFile(), $stmt->getStartLine()),
2343:	);
2344:	}
2345:
2346:	private function lookForSetAllowedUndefinedExpressions(MutatingScope $scope, Expr $expr): MutatingScope
2347:	{
2348:	return $this->lookForExpressionCallback($scope, $expr, static fn (MutatingScope $scope, Expr $expr): MutatingScope => $scope->setAllowedUndefinedExpression($expr));
2349:	}
2350:
2351:	private function lookForUnsetAllowedUndefinedExpressions(MutatingScope $scope, Expr $expr): MutatingScope
2352:	{
2353:	return $this->lookForExpressionCallback($scope, $expr, static fn (MutatingScope $scope, Expr $expr): MutatingScope => $scope->unsetAllowedUndefinedExpression($expr));
2354:	}
2355:
2356:	/**
2357:	* @param Closure(MutatingScope $scope, Expr $expr): MutatingScope $callback
2358:	*/
2359:	private function lookForExpressionCallback(MutatingScope $scope, Expr $expr, Closure $callback): MutatingScope
2360:	{
2361:	if (!$expr instanceof ArrayDimFetch \|\| $expr->dim !== null) {
2362:	$scope = $callback($scope, $expr);
2363:	}
2364:
2365:	if ($expr instanceof ArrayDimFetch) {
2366:	$scope = $this->lookForExpressionCallback($scope, $expr->var, $callback);
2367:	} elseif ($expr instanceof PropertyFetch \|\| $expr instanceof Expr\NullsafePropertyFetch) {
2368:	$scope = $this->lookForExpressionCallback($scope, $expr->var, $callback);
2369:	} elseif ($expr instanceof StaticPropertyFetch && $expr->class instanceof Expr) {
2370:	$scope = $this->lookForExpressionCallback($scope, $expr->class, $callback);
2371:	} elseif ($expr instanceof List_) {
2372:	foreach ($expr->items as $item) {
2373:	if ($item === null) {
2374:	continue;
2375:	}
2376:
2377:	$scope = $this->lookForExpressionCallback($scope, $item->value, $callback);
2378:	}
2379:	}
2380:
2381:	return $scope;
2382:	}
2383:
2384:	private function ensureShallowNonNullability(MutatingScope $scope, Scope $originalScope, Expr $exprToSpecify): EnsuredNonNullabilityResult
2385:	{
2386:	$exprType = $scope->getType($exprToSpecify);
2387:	$isNull = $exprType->isNull();
2388:	if ($isNull->yes()) {
2389:	return new EnsuredNonNullabilityResult($scope, []);
2390:	}
2391:
2392:	// keep certainty
2393:	$certainty = TrinaryLogic::createYes();
2394:	$hasExpressionType = $originalScope->hasExpressionType($exprToSpecify);
2395:	if (!$hasExpressionType->no()) {
2396:	$certainty = $hasExpressionType;
2397:	}
2398:
2399:	$exprTypeWithoutNull = TypeCombinator::removeNull($exprType);
2400:	if ($exprType->equals($exprTypeWithoutNull)) {
2401:	$originalExprType = $originalScope->getType($exprToSpecify);
2402:	if (!$originalExprType->equals($exprTypeWithoutNull)) {
2403:	$originalNativeType = $originalScope->getNativeType($exprToSpecify);
2404:
2405:	return new EnsuredNonNullabilityResult($scope, [
2406:	new EnsuredNonNullabilityResultExpression($exprToSpecify, $originalExprType, $originalNativeType, $certainty),
2407:	]);
2408:	}
2409:	return new EnsuredNonNullabilityResult($scope, []);
2410:	}
2411:
2412:	$nativeType = $scope->getNativeType($exprToSpecify);
2413:	$scope = $scope->specifyExpressionType(
2414:	$exprToSpecify,
2415:	$exprTypeWithoutNull,
2416:	TypeCombinator::removeNull($nativeType),
2417:	TrinaryLogic::createYes(),
2418:	);
2419:
2420:	return new EnsuredNonNullabilityResult(
2421:	$scope,
2422:	[
2423:	new EnsuredNonNullabilityResultExpression($exprToSpecify, $exprType, $nativeType, $certainty),
2424:	],
2425:	);
2426:	}
2427:
2428:	private function ensureNonNullability(MutatingScope $scope, Expr $expr): EnsuredNonNullabilityResult
2429:	{
2430:	$specifiedExpressions = [];
2431:	$originalScope = $scope;
2432:	$scope = $this->lookForExpressionCallback($scope, $expr, function ($scope, $expr) use (&$specifiedExpressions, $originalScope) {
2433:	$result = $this->ensureShallowNonNullability($scope, $originalScope, $expr);
2434:	foreach ($result->getSpecifiedExpressions() as $specifiedExpression) {
2435:	$specifiedExpressions[] = $specifiedExpression;
2436:	}
2437:	return $result->getScope();
2438:	});
2439:
2440:	return new EnsuredNonNullabilityResult($scope, $specifiedExpressions);
2441:	}
2442:
2443:	/**
2444:	* @param EnsuredNonNullabilityResultExpression[] $specifiedExpressions
2445:	*/
2446:	private function revertNonNullability(MutatingScope $scope, array $specifiedExpressions): MutatingScope
2447:	{
2448:	foreach ($specifiedExpressions as $specifiedExpressionResult) {
2449:	$scope = $scope->specifyExpressionType(
2450:	$specifiedExpressionResult->getExpression(),
2451:	$specifiedExpressionResult->getOriginalType(),
2452:	$specifiedExpressionResult->getOriginalNativeType(),
2453:	$specifiedExpressionResult->getCertainty(),
2454:	);
2455:	}
2456:
2457:	return $scope;
2458:	}
2459:
2460:	private function findEarlyTerminatingExpr(Expr $expr, Scope $scope): ?Expr
2461:	{
2462:	if (($expr instanceof MethodCall \|\| $expr instanceof Expr\StaticCall) && $expr->name instanceof Node\Identifier) {
2463:	if (array_key_exists($expr->name->toLowerString(), $this->earlyTerminatingMethodNames)) {
2464:	if ($expr instanceof MethodCall) {
2465:	$methodCalledOnType = $scope->getType($expr->var);
2466:	} else {
2467:	if ($expr->class instanceof Name) {
2468:	$methodCalledOnType = $scope->resolveTypeByName($expr->class);
2469:	} else {
2470:	$methodCalledOnType = $scope->getType($expr->class);
2471:	}
2472:	}
2473:
2474:	foreach ($methodCalledOnType->getObjectClassNames() as $referencedClass) {
2475:	if (!$this->reflectionProvider->hasClass($referencedClass)) {
2476:	continue;
2477:	}
2478:
2479:	$classReflection = $this->reflectionProvider->getClass($referencedClass);
2480:	foreach (array_merge([$referencedClass], $classReflection->getParentClassesNames(), $classReflection->getNativeReflection()->getInterfaceNames()) as $className) {
2481:	if (!isset($this->earlyTerminatingMethodCalls[$className])) {
2482:	continue;
2483:	}
2484:
2485:	if (in_array((string) $expr->name, $this->earlyTerminatingMethodCalls[$className], true)) {
2486:	return $expr;
2487:	}
2488:	}
2489:	}
2490:	}
2491:	}
2492:
2493:	if ($expr instanceof FuncCall && $expr->name instanceof Name) {
2494:	if (in_array((string) $expr->name, $this->earlyTerminatingFunctionCalls, true)) {
2495:	return $expr;
2496:	}
2497:	}
2498:
2499:	if ($expr instanceof Expr\Exit_ \|\| $expr instanceof Expr\Throw_) {
2500:	return $expr;
2501:	}
2502:
2503:	$exprType = $scope->getType($expr);
2504:	if ($exprType instanceof NeverType && $exprType->isExplicit()) {
2505:	return $expr;
2506:	}
2507:
2508:	return null;
2509:	}
2510:
2511:	/**
2512:	* @param callable(Node $node, Scope $scope): void $nodeCallback
2513:	*/
2514:	public function processExprNode(Node\Stmt $stmt, Expr $expr, MutatingScope $scope, callable $nodeCallback, ExpressionContext $context): ExpressionResult
2515:	{
2516:	if ($expr instanceof Expr\CallLike && $expr->isFirstClassCallable()) {
2517:	if ($expr instanceof FuncCall) {
2518:	$newExpr = new FunctionCallableNode($expr->name, $expr);
2519:	} elseif ($expr instanceof MethodCall) {
2520:	$newExpr = new MethodCallableNode($expr->var, $expr->name, $expr);
2521:	} elseif ($expr instanceof StaticCall) {
2522:	$newExpr = new StaticMethodCallableNode($expr->class, $expr->name, $expr);
2523:	} elseif ($expr instanceof New_ && !$expr->class instanceof Class_) {
2524:	$newExpr = new InstantiationCallableNode($expr->class, $expr);
2525:	} else {
2526:	throw new ShouldNotHappenException();
2527:	}
2528:
2529:	return $this->processExprNode($stmt, $newExpr, $scope, $nodeCallback, $context);
2530:	}
2531:
2532:	$this->callNodeCallbackWithExpression($nodeCallback, $expr, $scope, $context);
2533:
2534:	if ($expr instanceof Variable) {
2535:	$hasYield = false;
2536:	$throwPoints = [];
2537:	$impurePoints = [];
2538:	$isAlwaysTerminating = false;
2539:	if ($expr->name instanceof Expr) {
2540:	return $this->processExprNode($stmt, $expr->name, $scope, $nodeCallback, $context->enterDeep());
2541:	} elseif (in_array($expr->name, Scope::SUPERGLOBAL_VARIABLES, true)) {
2542:	$impurePoints[] = new ImpurePoint($scope, $expr, 'superglobal', 'access to superglobal variable', true);
2543:	}
2544:	} elseif ($expr instanceof Assign \|\| $expr instanceof AssignRef) {
2545:	$result = $this->processAssignVar(
2546:	$scope,
2547:	$stmt,
2548:	$expr->var,
2549:	$expr->expr,
2550:	$nodeCallback,
2551:	$context,
2552:	function (MutatingScope $scope) use ($stmt, $expr, $nodeCallback, $context): ExpressionResult {
2553:	$impurePoints = [];
2554:	if ($expr instanceof AssignRef) {
2555:	$referencedExpr = $expr->expr;
2556:	while ($referencedExpr instanceof ArrayDimFetch) {
2557:	$referencedExpr = $referencedExpr->var;
2558:	}
2559:
2560:	if ($referencedExpr instanceof PropertyFetch \|\| $referencedExpr instanceof StaticPropertyFetch) {
2561:	$impurePoints[] = new ImpurePoint(
2562:	$scope,
2563:	$expr,
2564:	'propertyAssignByRef',
2565:	'property assignment by reference',
2566:	false,
2567:	);
2568:	}
2569:
2570:	$scope = $scope->enterExpressionAssign($expr->expr);
2571:	}
2572:
2573:	if ($expr->var instanceof Variable && is_string($expr->var->name)) {
2574:	$context = $context->enterRightSideAssign(
2575:	$expr->var->name,
2576:	$expr->expr,
2577:	);
2578:	}
2579:
2580:	$result = $this->processExprNode($stmt, $expr->expr, $scope, $nodeCallback, $context->enterDeep());
2581:	$hasYield = $result->hasYield();
2582:	$throwPoints = $result->getThrowPoints();
2583:	$impurePoints = array_merge($impurePoints, $result->getImpurePoints());
2584:	$isAlwaysTerminating = $result->isAlwaysTerminating();
2585:	$scope = $result->getScope();
2586:
2587:	if ($expr instanceof AssignRef) {
2588:	$scope = $scope->exitExpressionAssign($expr->expr);
2589:	}
2590:
2591:	return new ExpressionResult($scope, $hasYield, $isAlwaysTerminating, $throwPoints, $impurePoints);
2592:	},
2593:	true,
2594:	);
2595:	$scope = $result->getScope();
2596:	$hasYield = $result->hasYield();
2597:	$throwPoints = $result->getThrowPoints();
2598:	$impurePoints = $result->getImpurePoints();
2599:	$isAlwaysTerminating = $result->isAlwaysTerminating();
2600:	$vars = $this->getAssignedVariables($expr->var);
2601:	if (count($vars) > 0) {
2602:	$varChangedScope = false;
2603:	$scope = $this->processVarAnnotation($scope, $vars, $stmt, $varChangedScope);
2604:	if (!$varChangedScope) {
2605:	$scope = $this->processStmtVarAnnotation($scope, $stmt, null, $nodeCallback);
2606:	}
2607:	}
2608:	} elseif ($expr instanceof Expr\AssignOp) {
2609:	$result = $this->processAssignVar(
2610:	$scope,
2611:	$stmt,
2612:	$expr->var,
2613:	$expr,
2614:	$nodeCallback,
2615:	$context,
2616:	function (MutatingScope $scope) use ($stmt, $expr, $nodeCallback, $context): ExpressionResult {
2617:	$originalScope = $scope;
2618:	if ($expr instanceof Expr\AssignOp\Coalesce) {
2619:	$scope = $scope->filterByFalseyValue(
2620:	new BinaryOp\NotIdentical($expr->var, new ConstFetch(new Name('null'))),
2621:	);
2622:	}
2623:
2624:	$result = $this->processExprNode($stmt, $expr->expr, $scope, $nodeCallback, $context->enterDeep());
2625:	if ($expr instanceof Expr\AssignOp\Coalesce) {
2626:	return new ExpressionResult(
2627:	$result->getScope()->mergeWith($originalScope),
2628:	$result->hasYield(),
2629:	$result->isAlwaysTerminating(),
2630:	$result->getThrowPoints(),
2631:	$result->getImpurePoints(),
2632:	);
2633:	}
2634:
2635:	return $result;
2636:	},
2637:	$expr instanceof Expr\AssignOp\Coalesce,
2638:	);
2639:	$scope = $result->getScope();
2640:	$hasYield = $result->hasYield();
2641:	$throwPoints = $result->getThrowPoints();
2642:	$impurePoints = $result->getImpurePoints();
2643:	$isAlwaysTerminating = $result->isAlwaysTerminating();
2644:	if (
2645:	($expr instanceof Expr\AssignOp\Div \|\| $expr instanceof Expr\AssignOp\Mod) &&
2646:	!$scope->getType($expr->expr)->toNumber()->isSuperTypeOf(new ConstantIntegerType(0))->no()
2647:	) {
2648:	$throwPoints[] = InternalThrowPoint::createExplicit($scope, new ObjectType(DivisionByZeroError::class), $expr, false);
2649:	}
2650:	} elseif ($expr instanceof FuncCall) {
2651:	$parametersAcceptor = null;
2652:	$functionReflection = null;
2653:	$throwPoints = [];
2654:	$impurePoints = [];
2655:	$isAlwaysTerminating = false;
2656:	if ($expr->name instanceof Expr) {
2657:	$nameType = $scope->getType($expr->name);
2658:	if (!$nameType->isCallable()->no()) {
2659:	$parametersAcceptor = ParametersAcceptorSelector::selectFromArgs(
2660:	$scope,
2661:	$expr->getArgs(),
2662:	$nameType->getCallableParametersAcceptors($scope),
2663:	null,
2664:	);
2665:	}
2666:
2667:	$nameResult = $this->processExprNode($stmt, $expr->name, $scope, $nodeCallback, $context->enterDeep());
2668:	$scope = $nameResult->getScope();
2669:	$throwPoints = $nameResult->getThrowPoints();
2670:	$impurePoints = $nameResult->getImpurePoints();
2671:	$isAlwaysTerminating = $nameResult->isAlwaysTerminating();
2672:	if (
2673:	$nameType->isObject()->yes()
2674:	&& $nameType->isCallable()->yes()
2675:	&& (new ObjectType(Closure::class))->isSuperTypeOf($nameType)->no()
2676:	) {
2677:	$invokeResult = $this->processExprNode(
2678:	$stmt,
2679:	new MethodCall($expr->name, '__invoke', $expr->getArgs(), $expr->getAttributes()),
2680:	$scope,
2681:	static function (): void {
2682:	},
2683:	$context->enterDeep(),
2684:	);
2685:	$throwPoints = array_merge($throwPoints, $invokeResult->getThrowPoints());
2686:	$impurePoints = array_merge($impurePoints, $invokeResult->getImpurePoints());
2687:	$isAlwaysTerminating = $invokeResult->isAlwaysTerminating();
2688:	} elseif ($parametersAcceptor instanceof CallableParametersAcceptor) {
2689:	$callableThrowPoints = array_map(static fn (SimpleThrowPoint $throwPoint) => $throwPoint->isExplicit() ? InternalThrowPoint::createExplicit($scope, $throwPoint->getType(), $expr, $throwPoint->canContainAnyThrowable()) : InternalThrowPoint::createImplicit($scope, $expr), $parametersAcceptor->getThrowPoints());
2690:	if (!$this->implicitThrows) {
2691:	$callableThrowPoints = array_values(array_filter($callableThrowPoints, static fn (InternalThrowPoint $throwPoint) => $throwPoint->isExplicit()));
2692:	}
2693:	$throwPoints = array_merge($throwPoints, $callableThrowPoints);
2694:	$impurePoints = array_merge($impurePoints, array_map(static fn (SimpleImpurePoint $impurePoint) => new ImpurePoint($scope, $expr, $impurePoint->getIdentifier(), $impurePoint->getDescription(), $impurePoint->isCertain()), $parametersAcceptor->getImpurePoints()));
2695:
2696:	$scope = $this->processImmediatelyCalledCallable($scope, $parametersAcceptor->getInvalidateExpressions(), $parametersAcceptor->getUsedVariables());
2697:	}
2698:	} elseif ($this->reflectionProvider->hasFunction($expr->name, $scope)) {
2699:	$functionReflection = $this->reflectionProvider->getFunction($expr->name, $scope);
2700:	$parametersAcceptor = ParametersAcceptorSelector::selectFromArgs(
2701:	$scope,
2702:	$expr->getArgs(),
2703:	$functionReflection->getVariants(),
2704:	$functionReflection->getNamedArgumentsVariants(),
2705:	);
2706:	$impurePoint = SimpleImpurePoint::createFromVariant($functionReflection, $parametersAcceptor, $scope, $expr->getArgs());
2707:	if ($impurePoint !== null) {
2708:	$impurePoints[] = new ImpurePoint($scope, $expr, $impurePoint->getIdentifier(), $impurePoint->getDescription(), $impurePoint->isCertain());
2709:	}
2710:	} else {
2711:	$impurePoints[] = new ImpurePoint(
2712:	$scope,
2713:	$expr,
2714:	'functionCall',
2715:	'call to unknown function',
2716:	false,
2717:	);
2718:	}
2719:
2720:	if ($parametersAcceptor !== null) {
2721:	$expr = ArgumentsNormalizer::reorderFuncArguments($parametersAcceptor, $expr) ?? $expr;
2722:	$returnType = $parametersAcceptor->getReturnType();
2723:	$isAlwaysTerminating = $isAlwaysTerminating \|\| $returnType instanceof NeverType && $returnType->isExplicit();
2724:	}
2725:
2726:	if (
2727:	$expr->name instanceof Name
2728:	&& $functionReflection !== null
2729:	&& $functionReflection->getName() === 'clone'
2730:	&& count($expr->getArgs()) === 2
2731:	) {
2732:	$clonePropertiesArgType = $scope->getType($expr->getArgs()[1]->value);
2733:	$cloneExpr = new TypeExpr($scope->getType(new Expr\Clone_($expr->getArgs()[0]->value)));
2734:	$clonePropertiesArgTypeConstantArrays = $clonePropertiesArgType->getConstantArrays();
2735:	foreach ($clonePropertiesArgTypeConstantArrays as $clonePropertiesArgTypeConstantArray) {
2736:	foreach ($clonePropertiesArgTypeConstantArray->getKeyTypes() as $i => $clonePropertyKeyType) {
2737:	$clonePropertyKeyTypeScalars = $clonePropertyKeyType->getConstantScalarValues();
2738:	$propertyAttributes = $expr->getAttributes();
2739:	$propertyAttributes['inCloneWith'] = true;
2740:	if (count($clonePropertyKeyTypeScalars) === 1) {
2741:	$this->processVirtualAssign(
2742:	$scope,
2743:	$stmt,
2744:	new PropertyFetch($cloneExpr, (string) $clonePropertyKeyTypeScalars[0], $propertyAttributes),
2745:	new TypeExpr($clonePropertiesArgTypeConstantArray->getValueTypes()[$i]),
2746:	$nodeCallback,
2747:	);
2748:	continue;
2749:	}
2750:
2751:	$this->processVirtualAssign(
2752:	$scope,
2753:	$stmt,
2754:	new PropertyFetch($cloneExpr, new TypeExpr($clonePropertyKeyType), $propertyAttributes),
2755:	new TypeExpr($clonePropertiesArgTypeConstantArray->getValueTypes()[$i]),
2756:	$nodeCallback,
2757:	);
2758:	}
2759:	}
2760:	}
2761:
2762:	$result = $this->processArgs($stmt, $functionReflection, null, $parametersAcceptor, $expr, $scope, $nodeCallback, $context);
2763:	$scope = $result->getScope();
2764:	$hasYield = $result->hasYield();
2765:	$throwPoints = array_merge($throwPoints, $result->getThrowPoints());
2766:	$impurePoints = array_merge($impurePoints, $result->getImpurePoints());
2767:	$isAlwaysTerminating = $isAlwaysTerminating \|\| $result->isAlwaysTerminating();
2768:
2769:	if ($functionReflection !== null) {
2770:	$functionThrowPoint = $this->getFunctionThrowPoint($functionReflection, $parametersAcceptor, $expr, $scope);
2771:	if ($functionThrowPoint !== null) {
2772:	$throwPoints[] = $functionThrowPoint;
2773:	}
2774:	} else {
2775:	$throwPoints[] = InternalThrowPoint::createImplicit($scope, $expr);
2776:	}
2777:
2778:	if (
2779:	$parametersAcceptor instanceof ClosureType && count($parametersAcceptor->getImpurePoints()) > 0
2780:	&& $scope->isInClass()
2781:	) {
2782:	$scope = $scope->invalidateExpression(new Variable('this'), true);
2783:	}
2784:
2785:	if (
2786:	$functionReflection !== null
2787:	&& in_array($functionReflection->getName(), ['json_encode', 'json_decode'], true)
2788:	) {
2789:	$scope = $scope->invalidateExpression(new FuncCall(new Name('json_last_error'), []))
2790:	->invalidateExpression(new FuncCall(new Name\FullyQualified('json_last_error'), []))
2791:	->invalidateExpression(new FuncCall(new Name('json_last_error_msg'), []))
2792:	->invalidateExpression(new FuncCall(new Name\FullyQualified('json_last_error_msg'), []));
2793:	}
2794:
2795:	if (
2796:	$functionReflection !== null
2797:	&& $functionReflection->getName() === 'file_put_contents'
2798:	&& count($expr->getArgs()) > 0
2799:	) {
2800:	$scope = $scope->invalidateExpression(new FuncCall(new Name('file_get_contents'), [$expr->getArgs()[0]]))
2801:	->invalidateExpression(new FuncCall(new Name\FullyQualified('file_get_contents'), [$expr->getArgs()[0]]));
2802:	}
2803:
2804:	if (
2805:	$functionReflection !== null
2806:	&& in_array($functionReflection->getName(), ['array_pop', 'array_shift'], true)
2807:	&& count($expr->getArgs()) >= 1
2808:	) {
2809:	$arrayArg = $expr->getArgs()[0]->value;
2810:
2811:	$arrayArgType = $scope->getType($arrayArg);
2812:	$arrayArgNativeType = $scope->getNativeType($arrayArg);
2813:	$isArrayPop = $functionReflection->getName() === 'array_pop';
2814:
2815:	$scope = $this->processVirtualAssign(
2816:	$scope,
2817:	$stmt,
2818:	$arrayArg,
2819:	new NativeTypeExpr(
2820:	$isArrayPop ? $arrayArgType->popArray() : $arrayArgType->shiftArray(),
2821:	$isArrayPop ? $arrayArgNativeType->popArray() : $arrayArgNativeType->shiftArray(),
2822:	),
2823:	$nodeCallback,
2824:	)->getScope();
2825:	}
2826:
2827:	if (
2828:	$functionReflection !== null
2829:	&& in_array($functionReflection->getName(), ['array_push', 'array_unshift'], true)
2830:	&& count($expr->getArgs()) >= 2
2831:	) {
2832:	$arrayArg = $expr->getArgs()[0]->value;
2833:
2834:	$scope = $this->processVirtualAssign(
2835:	$scope,
2836:	$stmt,
2837:	$arrayArg,
2838:	new NativeTypeExpr(
2839:	$this->getArrayFunctionAppendingType($functionReflection, $scope, $expr),
2840:	$this->getArrayFunctionAppendingType($functionReflection, $scope->doNotTreatPhpDocTypesAsCertain(), $expr),
2841:	),
2842:	$nodeCallback,
2843:	)->getScope();
2844:	}
2845:
2846:	if (
2847:	$functionReflection !== null
2848:	&& in_array($functionReflection->getName(), ['fopen', 'file_get_contents'], true)
2849:	) {
2850:	$scope = $scope->assignVariable('http_response_header', TypeCombinator::intersect(new ArrayType(new IntegerType(), new StringType()), new AccessoryArrayListType()), new ArrayType(new IntegerType(), new StringType()), TrinaryLogic::createYes());
2851:	}
2852:
2853:	if (
2854:	$functionReflection !== null
2855:	&& $functionReflection->getName() === 'shuffle'
2856:	) {
2857:	$arrayArg = $expr->getArgs()[0]->value;
2858:
2859:	$scope = $this->processVirtualAssign(
2860:	$scope,
2861:	$stmt,
2862:	$arrayArg,
2863:	new NativeTypeExpr($scope->getType($arrayArg)->shuffleArray(), $scope->getNativeType($arrayArg)->shuffleArray()),
2864:	$nodeCallback,
2865:	)->getScope();
2866:	}
2867:
2868:	if (
2869:	$functionReflection !== null
2870:	&& $functionReflection->getName() === 'array_splice'
2871:	&& count($expr->getArgs()) >= 2
2872:	) {
2873:	$arrayArg = $expr->getArgs()[0]->value;
2874:	$arrayArgType = $scope->getType($arrayArg);
2875:	$arrayArgNativeType = $scope->getNativeType($arrayArg);
2876:
2877:	$offsetType = $scope->getType($expr->getArgs()[1]->value);
2878:	$lengthType = isset($expr->getArgs()[2]) ? $scope->getType($expr->getArgs()[2]->value) : new NullType();
2879:	$replacementType = isset($expr->getArgs()[3]) ? $scope->getType($expr->getArgs()[3]->value) : new ConstantArrayType([], []);
2880:
2881:	$scope = $this->processVirtualAssign(
2882:	$scope,
2883:	$stmt,
2884:	$arrayArg,
2885:	new NativeTypeExpr(
2886:	$arrayArgType->spliceArray($offsetType, $lengthType, $replacementType),
2887:	$arrayArgNativeType->spliceArray($offsetType, $lengthType, $replacementType),
2888:	),
2889:	$nodeCallback,
2890:	)->getScope();
2891:	}
2892:
2893:	if (
2894:	$functionReflection !== null
2895:	&& in_array($functionReflection->getName(), ['sort', 'rsort', 'usort'], true)
2896:	&& count($expr->getArgs()) >= 1
2897:	) {
2898:	$arrayArg = $expr->getArgs()[0]->value;
2899:
2900:	$scope = $this->processVirtualAssign(
2901:	$scope,
2902:	$stmt,
2903:	$arrayArg,
2904:	new NativeTypeExpr($this->getArraySortPreserveListFunctionType($scope->getType($arrayArg)), $this->getArraySortPreserveListFunctionType($scope->getNativeType($arrayArg))),
2905:	$nodeCallback,
2906:	)->getScope();
2907:	}
2908:
2909:	if (
2910:	$functionReflection !== null
2911:	&& in_array($functionReflection->getName(), ['natcasesort', 'natsort', 'arsort', 'asort', 'ksort', 'krsort', 'uasort', 'uksort'], true)
2912:	&& count($expr->getArgs()) >= 1
2913:	) {
2914:	$arrayArg = $expr->getArgs()[0]->value;
2915:
2916:	$scope = $this->processVirtualAssign(
2917:	$scope,
2918:	$stmt,
2919:	$arrayArg,
2920:	new NativeTypeExpr($this->getArraySortDoNotPreserveListFunctionType($scope->getType($arrayArg)), $this->getArraySortDoNotPreserveListFunctionType($scope->getNativeType($arrayArg))),
2921:	$nodeCallback,
2922:	)->getScope();
2923:	}
2924:
2925:	if (
2926:	$functionReflection !== null
2927:	&& $functionReflection->getName() === 'extract'
2928:	) {
2929:	$extractedArg = $expr->getArgs()[0]->value;
2930:	$extractedType = $scope->getType($extractedArg);
2931:	$constantArrays = $extractedType->getConstantArrays();
2932:	if (count($constantArrays) > 0) {
2933:	$properties = [];
2934:	$optionalProperties = [];
2935:	$refCount = [];
2936:	foreach ($constantArrays as $constantArray) {
2937:	foreach ($constantArray->getKeyTypes() as $i => $keyType) {
2938:	if ($keyType->isString()->no()) {
2939:	// integers as variable names not allowed
2940:	continue;
2941:	}
2942:	$key = (string) $keyType->getValue();
2943:	$valueType = $constantArray->getValueTypes()[$i];
2944:	$optional = $constantArray->isOptionalKey($i);
2945:	if ($optional) {
2946:	$optionalProperties[] = $key;
2947:	}
2948:	if (isset($properties[$key])) {
2949:	$properties[$key] = TypeCombinator::union($properties[$key], $valueType);
2950:	$refCount[$key]++;
2951:	} else {
2952:	$properties[$key] = $valueType;
2953:	$refCount[$key] = 1;
2954:	}
2955:	}
2956:	}
2957:	foreach ($properties as $name => $type) {
2958:	$optional = in_array($name, $optionalProperties, true) \|\| $refCount[$name] < count($constantArrays);
2959:	$scope = $scope->assignVariable($name, $type, $type, $optional ? TrinaryLogic::createMaybe() : TrinaryLogic::createYes());
2960:	}
2961:	} else {
2962:	$scope = $scope->afterExtractCall();
2963:	}
2964:	}
2965:
2966:	if (
2967:	$functionReflection !== null
2968:	&& in_array($functionReflection->getName(), ['clearstatcache', 'unlink'], true)
2969:	) {
2970:	$scope = $scope->afterClearstatcacheCall();
2971:	}
2972:
2973:	if (
2974:	$functionReflection !== null
2975:	&& str_starts_with($functionReflection->getName(), 'openssl')
2976:	) {
2977:	$scope = $scope->afterOpenSslCall($functionReflection->getName());
2978:	}
2979:
2980:	} elseif ($expr instanceof MethodCall) {
2981:	$originalScope = $scope;
2982:	if (
2983:	($expr->var instanceof Expr\Closure \|\| $expr->var instanceof Expr\ArrowFunction)
2984:	&& $expr->name instanceof Node\Identifier
2985:	&& strtolower($expr->name->name) === 'call'
2986:	&& isset($expr->getArgs()[0])
2987:	) {
2988:	$closureCallScope = $scope->enterClosureCall(
2989:	$scope->getType($expr->getArgs()[0]->value),
2990:	$scope->getNativeType($expr->getArgs()[0]->value),
2991:	);
2992:	}
2993:
2994:	$result = $this->processExprNode($stmt, $expr->var, $closureCallScope ?? $scope, $nodeCallback, $context->enterDeep());
2995:	$hasYield = $result->hasYield();
2996:	$throwPoints = $result->getThrowPoints();
2997:	$impurePoints = $result->getImpurePoints();
2998:	$isAlwaysTerminating = $result->isAlwaysTerminating();
2999:	$scope = $result->getScope();
3000:	if (isset($closureCallScope)) {
3001:	$scope = $scope->restoreOriginalScopeAfterClosureBind($originalScope);
3002:	}
3003:	$parametersAcceptor = null;
3004:	$methodReflection = null;
3005:	$calledOnType = $scope->getType($expr->var);
3006:	if ($expr->name instanceof Expr) {
3007:	$methodNameResult = $this->processExprNode($stmt, $expr->name, $scope, $nodeCallback, $context->enterDeep());
3008:	$throwPoints = array_merge($throwPoints, $methodNameResult->getThrowPoints());
3009:	$scope = $methodNameResult->getScope();
3010:	} else {
3011:	$methodName = $expr->name->name;
3012:	$methodReflection = $scope->getMethodReflection($calledOnType, $methodName);
3013:	if ($methodReflection !== null) {
3014:	$parametersAcceptor = ParametersAcceptorSelector::selectFromArgs(
3015:	$scope,
3016:	$expr->getArgs(),
3017:	$methodReflection->getVariants(),
3018:	$methodReflection->getNamedArgumentsVariants(),
3019:	);
3020:
3021:	$methodThrowPoint = $this->getMethodThrowPoint($methodReflection, $parametersAcceptor, $expr, $scope);
3022:	if ($methodThrowPoint !== null) {
3023:	$throwPoints[] = $methodThrowPoint;
3024:	}
3025:	}
3026:	}
3027:
3028:	if ($methodReflection !== null) {
3029:	$impurePoint = SimpleImpurePoint::createFromVariant($methodReflection, $parametersAcceptor, $scope, $expr->getArgs());
3030:	if ($impurePoint !== null) {
3031:	$impurePoints[] = new ImpurePoint($scope, $expr, $impurePoint->getIdentifier(), $impurePoint->getDescription(), $impurePoint->isCertain());
3032:	}
3033:	} else {
3034:	$impurePoints[] = new ImpurePoint(
3035:	$scope,
3036:	$expr,
3037:	'methodCall',
3038:	'call to unknown method',
3039:	false,
3040:	);
3041:	}
3042:
3043:	if ($parametersAcceptor !== null) {
3044:	$expr = ArgumentsNormalizer::reorderMethodArguments($parametersAcceptor, $expr) ?? $expr;
3045:	$returnType = $parametersAcceptor->getReturnType();
3046:	$isAlwaysTerminating = $returnType instanceof NeverType && $returnType->isExplicit();
3047:	}
3048:
3049:	$result = $this->processArgs(
3050:	$stmt,
3051:	$methodReflection,
3052:	$methodReflection !== null ? $scope->getNakedMethod($calledOnType, $methodReflection->getName()) : null,
3053:	$parametersAcceptor,
3054:	$expr,
3055:	$scope,
3056:	$nodeCallback,
3057:	$context,
3058:	);
3059:	$scope = $result->getScope();
3060:
3061:	if ($methodReflection !== null) {
3062:	$hasSideEffects = $methodReflection->hasSideEffects();
3063:	if ($hasSideEffects->yes() \|\| $methodReflection->getName() === '__construct') {
3064:	$nodeCallback(new InvalidateExprNode($expr->var), $scope);
3065:	$scope = $scope->invalidateExpression($expr->var, true);
3066:	}
3067:	if ($parametersAcceptor !== null && !$methodReflection->isStatic()) {
3068:	$selfOutType = $methodReflection->getSelfOutType();
3069:	if ($selfOutType !== null) {
3070:	$scope = $scope->assignExpression(
3071:	$expr->var,
3072:	TemplateTypeHelper::resolveTemplateTypes(
3073:	$selfOutType,
3074:	$parametersAcceptor->getResolvedTemplateTypeMap(),
3075:	$parametersAcceptor instanceof ExtendedParametersAcceptor ? $parametersAcceptor->getCallSiteVarianceMap() : TemplateTypeVarianceMap::createEmpty(),
3076:	TemplateTypeVariance::createCovariant(),
3077:	),
3078:	$scope->getNativeType($expr->var),
3079:	);
3080:	}
3081:	}
3082:
3083:	if (
3084:	$scope->isInClass()
3085:	&& $scope->getClassReflection()->getName() === $methodReflection->getDeclaringClass()->getName()
3086:	/*&& (
3087:	// should not be allowed but in practice has to be
3088:	$scope->getClassReflection()->isFinal()
3089:	\|\| $methodReflection->isFinal()->yes()
3090:	\|\| $methodReflection->isPrivate()
3091:	)*/
3092:	&& TypeUtils::findThisType($calledOnType) !== null
3093:	) {
3094:	$calledMethodScope = $this->processCalledMethod($methodReflection);
3095:	if ($calledMethodScope !== null) {
3096:	$scope = $scope->mergeInitializedProperties($calledMethodScope);
3097:	}
3098:	}
3099:	} else {
3100:	$throwPoints[] = InternalThrowPoint::createImplicit($scope, $expr);
3101:	}
3102:	$hasYield = $hasYield \|\| $result->hasYield();
3103:	$throwPoints = array_merge($throwPoints, $result->getThrowPoints());
3104:	$impurePoints = array_merge($impurePoints, $result->getImpurePoints());
3105:	$isAlwaysTerminating = $isAlwaysTerminating \|\| $result->isAlwaysTerminating();
3106:	} elseif ($expr instanceof Expr\NullsafeMethodCall) {
3107:	$nonNullabilityResult = $this->ensureShallowNonNullability($scope, $scope, $expr->var);
3108:	$exprResult = $this->processExprNode($stmt, new MethodCall($expr->var, $expr->name, $expr->args, array_merge($expr->getAttributes(), ['virtualNullsafeMethodCall' => true])), $nonNullabilityResult->getScope(), $nodeCallback, $context);
3109:	$scope = $this->revertNonNullability($exprResult->getScope(), $nonNullabilityResult->getSpecifiedExpressions());
3110:
3111:	return new ExpressionResult(
3112:	$scope,
3113:	$exprResult->hasYield(),
3114:	false,
3115:	$exprResult->getThrowPoints(),
3116:	$exprResult->getImpurePoints(),
3117:	static fn (): MutatingScope => $scope->filterByTruthyValue($expr),
3118:	static fn (): MutatingScope => $scope->filterByFalseyValue($expr),
3119:	);
3120:	} elseif ($expr instanceof StaticCall) {
3121:	$hasYield = false;
3122:	$throwPoints = [];
3123:	$impurePoints = [];
3124:	$isAlwaysTerminating = false;
3125:	if ($expr->class instanceof Expr) {
3126:	$objectClasses = $scope->getType($expr->class)->getObjectClassNames();
3127:	if (count($objectClasses) !== 1) {
3128:	$objectClasses = $scope->getType(new New_($expr->class))->getObjectClassNames();
3129:	}
3130:	if (count($objectClasses) === 1) {
3131:	$objectExprResult = $this->processExprNode($stmt, new StaticCall(new Name($objectClasses[0]), $expr->name, []), $scope, static function (): void {
3132:	}, $context->enterDeep());
3133:	$additionalThrowPoints = $objectExprResult->getThrowPoints();
3134:	} else {
3135:	$additionalThrowPoints = [InternalThrowPoint::createImplicit($scope, $expr)];
3136:	}
3137:	$classResult = $this->processExprNode($stmt, $expr->class, $scope, $nodeCallback, $context->enterDeep());
3138:	$hasYield = $classResult->hasYield();
3139:	$throwPoints = array_merge($throwPoints, $classResult->getThrowPoints());
3140:	$impurePoints = array_merge($impurePoints, $classResult->getImpurePoints());
3141:	$isAlwaysTerminating = $classResult->isAlwaysTerminating();
3142:	foreach ($additionalThrowPoints as $throwPoint) {
3143:	$throwPoints[] = $throwPoint;
3144:	}
3145:	$scope = $classResult->getScope();
3146:	}
3147:
3148:	$parametersAcceptor = null;
3149:	$methodReflection = null;
3150:	if ($expr->name instanceof Expr) {
3151:	$result = $this->processExprNode($stmt, $expr->name, $scope, $nodeCallback, $context->enterDeep());
3152:	$hasYield = $hasYield \|\| $result->hasYield();
3153:	$throwPoints = array_merge($throwPoints, $result->getThrowPoints());
3154:	$impurePoints = array_merge($impurePoints, $result->getImpurePoints());
3155:	$scope = $result->getScope();
3156:	} elseif ($expr->class instanceof Name) {
3157:	$classType = $scope->resolveTypeByName($expr->class);
3158:	$methodName = $expr->name->name;
3159:	if ($classType->hasMethod($methodName)->yes()) {
3160:	$methodReflection = $classType->getMethod($methodName, $scope);
3161:	$parametersAcceptor = ParametersAcceptorSelector::selectFromArgs(
3162:	$scope,
3163:	$expr->getArgs(),
3164:	$methodReflection->getVariants(),
3165:	$methodReflection->getNamedArgumentsVariants(),
3166:	);
3167:
3168:	$methodThrowPoint = $this->getStaticMethodThrowPoint($methodReflection, $parametersAcceptor, $expr, $scope);
3169:	if ($methodThrowPoint !== null) {
3170:	$throwPoints[] = $methodThrowPoint;
3171:	}
3172:
3173:	$declaringClass = $methodReflection->getDeclaringClass();
3174:	if (
3175:	$declaringClass->getName() === 'Closure'
3176:	&& strtolower($methodName) === 'bind'
3177:	) {
3178:	$thisType = null;
3179:	$nativeThisType = null;
3180:	if (isset($expr->getArgs()[1])) {
3181:	$argType = $scope->getType($expr->getArgs()[1]->value);
3182:	if ($argType->isNull()->yes()) {
3183:	$thisType = null;
3184:	} else {
3185:	$thisType = $argType;
3186:	}
3187:
3188:	$nativeArgType = $scope->getNativeType($expr->getArgs()[1]->value);
3189:	if ($nativeArgType->isNull()->yes()) {
3190:	$nativeThisType = null;
3191:	} else {
3192:	$nativeThisType = $nativeArgType;
3193:	}
3194:	}
3195:	$scopeClasses = ['static'];
3196:	if (isset($expr->getArgs()[2])) {
3197:	$argValue = $expr->getArgs()[2]->value;
3198:	$argValueType = $scope->getType($argValue);
3199:
3200:	$directClassNames = $argValueType->getObjectClassNames();
3201:	if (count($directClassNames) > 0) {
3202:	$scopeClasses = $directClassNames;
3203:	$thisTypes = [];
3204:	foreach ($directClassNames as $directClassName) {
3205:	$thisTypes[] = new ObjectType($directClassName);
3206:	}
3207:	$thisType = TypeCombinator::union(...$thisTypes);
3208:	} else {
3209:	$thisType = $argValueType->getClassStringObjectType();
3210:	$scopeClasses = $thisType->getObjectClassNames();
3211:	}
3212:	}
3213:	$closureBindScope = $scope->enterClosureBind($thisType, $nativeThisType, $scopeClasses);
3214:	}
3215:	} else {
3216:	$throwPoints[] = InternalThrowPoint::createImplicit($scope, $expr);
3217:	}
3218:	}
3219:
3220:	if ($methodReflection !== null) {
3221:	$impurePoint = SimpleImpurePoint::createFromVariant($methodReflection, $parametersAcceptor, $scope, $expr->getArgs());
3222:	if ($impurePoint !== null) {
3223:	$impurePoints[] = new ImpurePoint($scope, $expr, $impurePoint->getIdentifier(), $impurePoint->getDescription(), $impurePoint->isCertain());
3224:	}
3225:	} else {
3226:	$impurePoints[] = new ImpurePoint(
3227:	$scope,
3228:	$expr,
3229:	'methodCall',
3230:	'call to unknown method',
3231:	false,
3232:	);
3233:	}
3234:
3235:	if ($parametersAcceptor !== null) {
3236:	$expr = ArgumentsNormalizer::reorderStaticCallArguments($parametersAcceptor, $expr) ?? $expr;
3237:	$returnType = $parametersAcceptor->getReturnType();
3238:	$isAlwaysTerminating = $returnType instanceof NeverType && $returnType->isExplicit();
3239:	}
3240:	$result = $this->processArgs($stmt, $methodReflection, null, $parametersAcceptor, $expr, $scope, $nodeCallback, $context, $closureBindScope ?? null);
3241:	$scope = $result->getScope();
3242:	$scopeFunction = $scope->getFunction();
3243:
3244:	if (
3245:	$methodReflection !== null
3246:	&& (
3247:	$methodReflection->hasSideEffects()->yes()
3248:	\|\| (
3249:	!$methodReflection->isStatic()
3250:	&& $methodReflection->getName() === '__construct'
3251:	)
3252:	)
3253:	&& $scope->isInClass()
3254:	&& $scope->getClassReflection()->is($methodReflection->getDeclaringClass()->getName())
3255:	) {
3256:	$scope = $scope->invalidateExpression(new Variable('this'), true);
3257:	}
3258:
3259:	if (
3260:	$methodReflection !== null
3261:	&& !$methodReflection->isStatic()
3262:	&& $methodReflection->getName() === '__construct'
3263:	&& $scopeFunction instanceof MethodReflection
3264:	&& !$scopeFunction->isStatic()
3265:	&& $scope->isInClass()
3266:	&& $scope->getClassReflection()->isSubclassOfClass($methodReflection->getDeclaringClass())
3267:	) {
3268:	$thisType = $scope->getType(new Variable('this'));
3269:	$methodClassReflection = $methodReflection->getDeclaringClass();
3270:	foreach ($methodClassReflection->getNativeReflection()->getProperties(ReflectionProperty::IS_PUBLIC \| ReflectionProperty::IS_PROTECTED) as $property) {
3271:	if (!$property->isPromoted() \|\| $property->getDeclaringClass()->getName() !== $methodClassReflection->getName()) {
3272:	continue;
3273:	}
3274:
3275:	$scope = $scope->assignInitializedProperty($thisType, $property->getName());
3276:	}
3277:	}
3278:
3279:	$hasYield = $hasYield \|\| $result->hasYield();
3280:	$throwPoints = array_merge($throwPoints, $result->getThrowPoints());
3281:	$impurePoints = array_merge($impurePoints, $result->getImpurePoints());
3282:	$isAlwaysTerminating = $isAlwaysTerminating \|\| $result->isAlwaysTerminating();
3283:	} elseif ($expr instanceof PropertyFetch) {
3284:	$scopeBeforeVar = $scope;
3285:	$result = $this->processExprNode($stmt, $expr->var, $scope, $nodeCallback, $context->enterDeep());
3286:	$hasYield = $result->hasYield();
3287:	$throwPoints = $result->getThrowPoints();
3288:	$impurePoints = $result->getImpurePoints();
3289:	$isAlwaysTerminating = $result->isAlwaysTerminating();
3290:	$scope = $result->getScope();
3291:	if ($expr->name instanceof Expr) {
3292:	$result = $this->processExprNode($stmt, $expr->name, $scope, $nodeCallback, $context->enterDeep());
3293:	$hasYield = $hasYield \|\| $result->hasYield();
3294:	$throwPoints = array_merge($throwPoints, $result->getThrowPoints());
3295:	$impurePoints = array_merge($impurePoints, $result->getImpurePoints());
3296:	$isAlwaysTerminating = $isAlwaysTerminating \|\| $result->isAlwaysTerminating();
3297:	$scope = $result->getScope();
3298:	if ($this->phpVersion->supportsPropertyHooks()) {
3299:	$throwPoints[] = InternalThrowPoint::createImplicit($scope, $expr);
3300:	}
3301:	} else {
3302:	$propertyName = $expr->name->toString();
3303:	$propertyHolderType = $scopeBeforeVar->getType($expr->var);
3304:	$propertyReflection = $scopeBeforeVar->getInstancePropertyReflection($propertyHolderType, $propertyName);
3305:	if ($propertyReflection !== null && $this->phpVersion->supportsPropertyHooks()) {
3306:	$propertyDeclaringClass = $propertyReflection->getDeclaringClass();
3307:	if ($propertyDeclaringClass->hasNativeProperty($propertyName)) {
3308:	$nativeProperty = $propertyDeclaringClass->getNativeProperty($propertyName);
3309:	$throwPoints = array_merge($throwPoints, $this->getPropertyReadThrowPointsFromGetHook($scopeBeforeVar, $expr, $nativeProperty));
3310:	}
3311:	}
3312:	}
3313:	} elseif ($expr instanceof Expr\NullsafePropertyFetch) {
3314:	$nonNullabilityResult = $this->ensureShallowNonNullability($scope, $scope, $expr->var);
3315:	$exprResult = $this->processExprNode($stmt, new PropertyFetch($expr->var, $expr->name, array_merge($expr->getAttributes(), ['virtualNullsafePropertyFetch' => true])), $nonNullabilityResult->getScope(), $nodeCallback, $context);
3316:	$scope = $this->revertNonNullability($exprResult->getScope(), $nonNullabilityResult->getSpecifiedExpressions());
3317:
3318:	return new ExpressionResult(
3319:	$scope,
3320:	$exprResult->hasYield(),
3321:	false,
3322:	$exprResult->getThrowPoints(),
3323:	$exprResult->getImpurePoints(),
3324:	static fn (): MutatingScope => $scope->filterByTruthyValue($expr),
3325:	static fn (): MutatingScope => $scope->filterByFalseyValue($expr),
3326:	);
3327:	} elseif ($expr instanceof StaticPropertyFetch) {
3328:	$hasYield = false;
3329:	$throwPoints = [];
3330:	$impurePoints = [
3331:	new ImpurePoint(
3332:	$scope,
3333:	$expr,
3334:	'staticPropertyAccess',
3335:	'static property access',
3336:	true,
3337:	),
3338:	];
3339:	$isAlwaysTerminating = false;
3340:	if ($expr->class instanceof Expr) {
3341:	$result = $this->processExprNode($stmt, $expr->class, $scope, $nodeCallback, $context->enterDeep());
3342:	$hasYield = $result->hasYield();
3343:	$throwPoints = $result->getThrowPoints();
3344:	$impurePoints = $result->getImpurePoints();
3345:	$isAlwaysTerminating = $result->isAlwaysTerminating();
3346:	$scope = $result->getScope();
3347:	}
3348:	if ($expr->name instanceof Expr) {
3349:	$result = $this->processExprNode($stmt, $expr->name, $scope, $nodeCallback, $context->enterDeep());
3350:	$hasYield = $hasYield \|\| $result->hasYield();
3351:	$throwPoints = array_merge($throwPoints, $result->getThrowPoints());
3352:	$impurePoints = array_merge($impurePoints, $result->getImpurePoints());
3353:	$isAlwaysTerminating = $isAlwaysTerminating \|\| $result->isAlwaysTerminating();
3354:	$scope = $result->getScope();
3355:	}
3356:	} elseif ($expr instanceof Expr\Closure) {
3357:	$processClosureResult = $this->processClosureNode($stmt, $expr, $scope, $nodeCallback, $context, null);
3358:
3359:	return new ExpressionResult(
3360:	$processClosureResult->getScope(),
3361:	false,
3362:	false,
3363:	[],
3364:	[],
3365:	);
3366:	} elseif ($expr instanceof Expr\ArrowFunction) {
3367:	$result = $this->processArrowFunctionNode($stmt, $expr, $scope, $nodeCallback, null);
3368:	return new ExpressionResult(
3369:	$result->getScope(),
3370:	$result->hasYield(),
3371:	false,
3372:	[],
3373:	[],
3374:	);
3375:	} elseif ($expr instanceof ErrorSuppress) {
3376:	$result = $this->processExprNode($stmt, $expr->expr, $scope, $nodeCallback, $context);
3377:	$hasYield = $result->hasYield();
3378:	$throwPoints = $result->getThrowPoints();
3379:	$impurePoints = $result->getImpurePoints();
3380:	$isAlwaysTerminating = $result->isAlwaysTerminating();
3381:	$scope = $result->getScope();
3382:	} elseif ($expr instanceof Exit_) {
3383:	$hasYield = false;
3384:	$throwPoints = [];
3385:	$kind = $expr->getAttribute('kind', Exit_::KIND_EXIT);
3386:	$identifier = $kind === Exit_::KIND_DIE ? 'die' : 'exit';
3387:	$impurePoints = [
3388:	new ImpurePoint($scope, $expr, $identifier, $identifier, true),
3389:	];
3390:	$isAlwaysTerminating = true;
3391:	if ($expr->expr !== null) {
3392:	$result = $this->processExprNode($stmt, $expr->expr, $scope, $nodeCallback, $context->enterDeep());
3393:	$hasYield = $result->hasYield();
3394:	$throwPoints = $result->getThrowPoints();
3395:	$impurePoints = array_merge($impurePoints, $result->getImpurePoints());
3396:	$scope = $result->getScope();
3397:	}
3398:	} elseif ($expr instanceof Node\Scalar\InterpolatedString) {
3399:	$hasYield = false;
3400:	$throwPoints = [];
3401:	$impurePoints = [];
3402:	$isAlwaysTerminating = false;
3403:	foreach ($expr->parts as $part) {
3404:	if (!$part instanceof Expr) {
3405:	continue;
3406:	}
3407:	$result = $this->processExprNode($stmt, $part, $scope, $nodeCallback, $context->enterDeep());
3408:	$hasYield = $hasYield \|\| $result->hasYield();
3409:	$throwPoints = array_merge($throwPoints, $result->getThrowPoints());
3410:	$impurePoints = array_merge($impurePoints, $result->getImpurePoints());
3411:	$isAlwaysTerminating = $isAlwaysTerminating \|\| $result->isAlwaysTerminating();
3412:	$scope = $result->getScope();
3413:	}
3414:	} elseif ($expr instanceof ArrayDimFetch) {
3415:	$hasYield = false;
3416:	$throwPoints = [];
3417:	$impurePoints = [];
3418:	$isAlwaysTerminating = false;
3419:	if ($expr->dim !== null) {
3420:	$result = $this->processExprNode($stmt, $expr->dim, $scope, $nodeCallback, $context->enterDeep());
3421:	$hasYield = $result->hasYield();
3422:	$throwPoints = $result->getThrowPoints();
3423:	$impurePoints = $result->getImpurePoints();
3424:	$isAlwaysTerminating = $result->isAlwaysTerminating();
3425:	$scope = $result->getScope();
3426:	}
3427:
3428:	$result = $this->processExprNode($stmt, $expr->var, $scope, $nodeCallback, $context->enterDeep());
3429:	$hasYield = $hasYield \|\| $result->hasYield();
3430:	$throwPoints = array_merge($throwPoints, $result->getThrowPoints());
3431:	$impurePoints = array_merge($impurePoints, $result->getImpurePoints());
3432:	$isAlwaysTerminating = $isAlwaysTerminating \|\| $result->isAlwaysTerminating();
3433:	$scope = $result->getScope();
3434:	} elseif ($expr instanceof Array_) {
3435:	$itemNodes = [];
3436:	$hasYield = false;
3437:	$throwPoints = [];
3438:	$impurePoints = [];
3439:	$isAlwaysTerminating = false;
3440:	foreach ($expr->items as $arrayItem) {
3441:	$itemNodes[] = new LiteralArrayItem($scope, $arrayItem);
3442:	$nodeCallback($arrayItem, $scope);
3443:	if ($arrayItem->key !== null) {
3444:	$keyResult = $this->processExprNode($stmt, $arrayItem->key, $scope, $nodeCallback, $context->enterDeep());
3445:	$hasYield = $hasYield \|\| $keyResult->hasYield();
3446:	$throwPoints = array_merge($throwPoints, $keyResult->getThrowPoints());
3447:	$impurePoints = array_merge($impurePoints, $keyResult->getImpurePoints());
3448:	$isAlwaysTerminating = $isAlwaysTerminating \|\| $keyResult->isAlwaysTerminating();
3449:	$scope = $keyResult->getScope();
3450:	}
3451:
3452:	$valueResult = $this->processExprNode($stmt, $arrayItem->value, $scope, $nodeCallback, $context->enterDeep());
3453:	$hasYield = $hasYield \|\| $valueResult->hasYield();
3454:	$throwPoints = array_merge($throwPoints, $valueResult->getThrowPoints());
3455:	$impurePoints = array_merge($impurePoints, $valueResult->getImpurePoints());
3456:	$isAlwaysTerminating = $isAlwaysTerminating \|\| $valueResult->isAlwaysTerminating();
3457:	$scope = $valueResult->getScope();
3458:	}
3459:	$nodeCallback(new LiteralArrayNode($expr, $itemNodes), $scope);
3460:	} elseif ($expr instanceof BooleanAnd \|\| $expr instanceof BinaryOp\LogicalAnd) {
3461:	$leftResult = $this->processExprNode($stmt, $expr->left, $scope, $nodeCallback, $context->enterDeep());
3462:	$rightResult = $this->processExprNode($stmt, $expr->right, $leftResult->getTruthyScope(), $nodeCallback, $context);
3463:	$rightExprType = $rightResult->getScope()->getType($expr->right);
3464:	if ($rightExprType instanceof NeverType && $rightExprType->isExplicit()) {
3465:	$leftMergedWithRightScope = $leftResult->getFalseyScope();
3466:	} else {
3467:	$leftMergedWithRightScope = $leftResult->getScope()->mergeWith($rightResult->getScope());
3468:	}
3469:
3470:	$this->callNodeCallbackWithExpression($nodeCallback, new BooleanAndNode($expr, $leftResult->getTruthyScope()), $scope, $context);
3471:
3472:	return new ExpressionResult(
3473:	$leftMergedWithRightScope,
3474:	$leftResult->hasYield() \|\| $rightResult->hasYield(),
3475:	$leftResult->isAlwaysTerminating(),
3476:	array_merge($leftResult->getThrowPoints(), $rightResult->getThrowPoints()),
3477:	array_merge($leftResult->getImpurePoints(), $rightResult->getImpurePoints()),
3478:	static fn (): MutatingScope => $rightResult->getScope()->filterByTruthyValue($expr),
3479:	static fn (): MutatingScope => $leftMergedWithRightScope->filterByFalseyValue($expr),
3480:	);
3481:	} elseif ($expr instanceof BooleanOr \|\| $expr instanceof BinaryOp\LogicalOr) {
3482:	$leftResult = $this->processExprNode($stmt, $expr->left, $scope, $nodeCallback, $context->enterDeep());
3483:	$rightResult = $this->processExprNode($stmt, $expr->right, $leftResult->getFalseyScope(), $nodeCallback, $context);
3484:	$rightExprType = $rightResult->getScope()->getType($expr->right);
3485:	if ($rightExprType instanceof NeverType && $rightExprType->isExplicit()) {
3486:	$leftMergedWithRightScope = $leftResult->getTruthyScope();
3487:	} else {
3488:	$leftMergedWithRightScope = $leftResult->getScope()->mergeWith($rightResult->getScope());
3489:	}
3490:
3491:	$this->callNodeCallbackWithExpression($nodeCallback, new BooleanOrNode($expr, $leftResult->getFalseyScope()), $scope, $context);
3492:
3493:	return new ExpressionResult(
3494:	$leftMergedWithRightScope,
3495:	$leftResult->hasYield() \|\| $rightResult->hasYield(),
3496:	$leftResult->isAlwaysTerminating(),
3497:	array_merge($leftResult->getThrowPoints(), $rightResult->getThrowPoints()),
3498:	array_merge($leftResult->getImpurePoints(), $rightResult->getImpurePoints()),
3499:	static fn (): MutatingScope => $leftMergedWithRightScope->filterByTruthyValue($expr),
3500:	static fn (): MutatingScope => $rightResult->getScope()->filterByFalseyValue($expr),
3501:	);
3502:	} elseif ($expr instanceof Coalesce) {
3503:	$nonNullabilityResult = $this->ensureNonNullability($scope, $expr->left);
3504:	$condScope = $this->lookForSetAllowedUndefinedExpressions($nonNullabilityResult->getScope(), $expr->left);
3505:	$condResult = $this->processExprNode($stmt, $expr->left, $condScope, $nodeCallback, $context->enterDeep());
3506:	$scope = $this->revertNonNullability($condResult->getScope(), $nonNullabilityResult->getSpecifiedExpressions());
3507:	$scope = $this->lookForUnsetAllowedUndefinedExpressions($scope, $expr->left);
3508:
3509:	$rightScope = $scope->filterByFalseyValue($expr);
3510:	$rightResult = $this->processExprNode($stmt, $expr->right, $rightScope, $nodeCallback, $context->enterDeep());
3511:	$rightExprType = $scope->getType($expr->right);
3512:	if ($rightExprType instanceof NeverType && $rightExprType->isExplicit()) {
3513:	$scope = $scope->filterByTruthyValue(new Expr\Isset_([$expr->left]));
3514:	} else {
3515:	$scope = $scope->filterByTruthyValue(new Expr\Isset_([$expr->left]))->mergeWith($rightResult->getScope());
3516:	}
3517:
3518:	$hasYield = $condResult->hasYield() \|\| $rightResult->hasYield();
3519:	$throwPoints = array_merge($condResult->getThrowPoints(), $rightResult->getThrowPoints());
3520:	$impurePoints = array_merge($condResult->getImpurePoints(), $rightResult->getImpurePoints());
3521:	$isAlwaysTerminating = $condResult->isAlwaysTerminating();
3522:	} elseif ($expr instanceof BinaryOp\Pipe) {
3523:	if ($expr->right instanceof FuncCall && $expr->right->isFirstClassCallable()) {
3524:	$exprResult = $this->processExprNode($stmt, new FuncCall($expr->right->name, [
3525:	new Arg($expr->left, attributes: $expr->getAttribute(ReversePipeTransformerVisitor::ARG_ATTRIBUTES_NAME, [])),
3526:	], array_merge($expr->right->getAttributes(), ['virtualPipeOperatorCall' => true])), $scope, $nodeCallback, $context);
3527:	$scope = $exprResult->getScope();
3528:	$hasYield = $exprResult->hasYield();
3529:	$throwPoints = $exprResult->getThrowPoints();
3530:	$impurePoints = $exprResult->getImpurePoints();
3531:	$isAlwaysTerminating = $exprResult->isAlwaysTerminating();
3532:	} elseif ($expr->right instanceof MethodCall && $expr->right->isFirstClassCallable()) {
3533:	$exprResult = $this->processExprNode($stmt, new MethodCall($expr->right->var, $expr->right->name, [
3534:	new Arg($expr->left, attributes: $expr->getAttribute(ReversePipeTransformerVisitor::ARG_ATTRIBUTES_NAME, [])),
3535:	], array_merge($expr->right->getAttributes(), ['virtualPipeOperatorCall' => true])), $scope, $nodeCallback, $context);
3536:	$scope = $exprResult->getScope();
3537:	$hasYield = $exprResult->hasYield();
3538:	$throwPoints = $exprResult->getThrowPoints();
3539:	$impurePoints = $exprResult->getImpurePoints();
3540:	$isAlwaysTerminating = $exprResult->isAlwaysTerminating();
3541:	} elseif ($expr->right instanceof StaticCall && $expr->right->isFirstClassCallable()) {
3542:	$exprResult = $this->processExprNode($stmt, new StaticCall($expr->right->class, $expr->right->name, [
3543:	new Arg($expr->left, attributes: $expr->getAttribute(ReversePipeTransformerVisitor::ARG_ATTRIBUTES_NAME, [])),
3544:	], array_merge($expr->right->getAttributes(), ['virtualPipeOperatorCall' => true])), $scope, $nodeCallback, $context);
3545:	$scope = $exprResult->getScope();
3546:	$hasYield = $exprResult->hasYield();
3547:	$throwPoints = $exprResult->getThrowPoints();
3548:	$impurePoints = $exprResult->getImpurePoints();
3549:	$isAlwaysTerminating = $exprResult->isAlwaysTerminating();
3550:	} else {
3551:	$exprResult = $this->processExprNode($stmt, new FuncCall($expr->right, [
3552:	new Arg($expr->left, attributes: $expr->getAttribute(ReversePipeTransformerVisitor::ARG_ATTRIBUTES_NAME, [])),
3553:	], array_merge($expr->right->getAttributes(), ['virtualPipeOperatorCall' => true])), $scope, $nodeCallback, $context);
3554:	$scope = $exprResult->getScope();
3555:	$hasYield = $exprResult->hasYield();
3556:	$throwPoints = $exprResult->getThrowPoints();
3557:	$impurePoints = $exprResult->getImpurePoints();
3558:	$isAlwaysTerminating = $exprResult->isAlwaysTerminating();
3559:	}
3560:	} elseif ($expr instanceof BinaryOp) {
3561:	$result = $this->processExprNode($stmt, $expr->left, $scope, $nodeCallback, $context->enterDeep());
3562:	$scope = $result->getScope();
3563:	$hasYield = $result->hasYield();
3564:	$throwPoints = $result->getThrowPoints();
3565:	$impurePoints = $result->getImpurePoints();
3566:	$isAlwaysTerminating = $result->isAlwaysTerminating();
3567:	$result = $this->processExprNode($stmt, $expr->right, $scope, $nodeCallback, $context->enterDeep());
3568:	if (
3569:	($expr instanceof BinaryOp\Div \|\| $expr instanceof BinaryOp\Mod) &&
3570:	!$scope->getType($expr->right)->toNumber()->isSuperTypeOf(new ConstantIntegerType(0))->no()
3571:	) {
3572:	$throwPoints[] = InternalThrowPoint::createExplicit($scope, new ObjectType(DivisionByZeroError::class), $expr, false);
3573:	}
3574:	$scope = $result->getScope();
3575:	$hasYield = $hasYield \|\| $result->hasYield();
3576:	$throwPoints = array_merge($throwPoints, $result->getThrowPoints());
3577:	$impurePoints = array_merge($impurePoints, $result->getImpurePoints());
3578:	$isAlwaysTerminating = $isAlwaysTerminating \|\| $result->isAlwaysTerminating();
3579:	} elseif ($expr instanceof Expr\Include_) {
3580:	$result = $this->processExprNode($stmt, $expr->expr, $scope, $nodeCallback, $context->enterDeep());
3581:	$throwPoints = $result->getThrowPoints();
3582:	$throwPoints[] = InternalThrowPoint::createImplicit($scope, $expr);
3583:	$impurePoints = $result->getImpurePoints();
3584:	$impurePoints[] = new ImpurePoint(
3585:	$scope,
3586:	$expr,
3587:	in_array($expr->type, [Expr\Include_::TYPE_INCLUDE, Expr\Include_::TYPE_INCLUDE_ONCE], true) ? 'include' : 'require',
3588:	in_array($expr->type, [Expr\Include_::TYPE_INCLUDE, Expr\Include_::TYPE_INCLUDE_ONCE], true) ? 'include' : 'require',
3589:	true,
3590:	);
3591:	$hasYield = $result->hasYield();
3592:	$isAlwaysTerminating = $result->isAlwaysTerminating();
3593:	$scope = $result->getScope()->afterExtractCall();
3594:	} elseif ($expr instanceof Expr\Print_) {
3595:	$result = $this->processExprNode($stmt, $expr->expr, $scope, $nodeCallback, $context->enterDeep());
3596:	$throwPoints = $result->getThrowPoints();
3597:	$impurePoints = $result->getImpurePoints();
3598:	$isAlwaysTerminating = $result->isAlwaysTerminating();
3599:	$impurePoints[] = new ImpurePoint($scope, $expr, 'print', 'print', true);
3600:	$hasYield = $result->hasYield();
3601:
3602:	$scope = $result->getScope();
3603:	} elseif ($expr instanceof Cast\String_) {
3604:	$result = $this->processExprNode($stmt, $expr->expr, $scope, $nodeCallback, $context->enterDeep());
3605:	$throwPoints = $result->getThrowPoints();
3606:	$impurePoints = $result->getImpurePoints();
3607:	$isAlwaysTerminating = $result->isAlwaysTerminating();
3608:	$hasYield = $result->hasYield();
3609:
3610:	$exprType = $scope->getType($expr->expr);
3611:	$toStringMethod = $scope->getMethodReflection($exprType, '__toString');
3612:	if ($toStringMethod !== null) {
3613:	if (!$toStringMethod->hasSideEffects()->no()) {
3614:	$impurePoints[] = new ImpurePoint(
3615:	$scope,
3616:	$expr,
3617:	'methodCall',
3618:	sprintf('call to method %s::%s()', $toStringMethod->getDeclaringClass()->getDisplayName(), $toStringMethod->getName()),
3619:	$toStringMethod->isPure()->no(),
3620:	);
3621:	}
3622:	}
3623:
3624:	$scope = $result->getScope();
3625:	} elseif (
3626:	$expr instanceof Expr\BitwiseNot
3627:	\|\| $expr instanceof Cast
3628:	\|\| $expr instanceof Expr\Clone_
3629:	\|\| $expr instanceof Expr\UnaryMinus
3630:	\|\| $expr instanceof Expr\UnaryPlus
3631:	) {
3632:	$result = $this->processExprNode($stmt, $expr->expr, $scope, $nodeCallback, $context->enterDeep());
3633:	$throwPoints = $result->getThrowPoints();
3634:	$impurePoints = $result->getImpurePoints();
3635:	$isAlwaysTerminating = $result->isAlwaysTerminating();
3636:	$hasYield = $result->hasYield();
3637:
3638:	$scope = $result->getScope();
3639:	} elseif ($expr instanceof Expr\Eval_) {
3640:	$result = $this->processExprNode($stmt, $expr->expr, $scope, $nodeCallback, $context->enterDeep());
3641:	$throwPoints = $result->getThrowPoints();
3642:	$throwPoints[] = InternalThrowPoint::createImplicit($scope, $expr);
3643:	$impurePoints = $result->getImpurePoints();
3644:	$impurePoints[] = new ImpurePoint($scope, $expr, 'eval', 'eval', true);
3645:	$hasYield = $result->hasYield();
3646:	$isAlwaysTerminating = $result->isAlwaysTerminating();
3647:
3648:	$scope = $result->getScope();
3649:	} elseif ($expr instanceof Expr\YieldFrom) {
3650:	$result = $this->processExprNode($stmt, $expr->expr, $scope, $nodeCallback, $context->enterDeep());
3651:	$throwPoints = $result->getThrowPoints();
3652:	$throwPoints[] = InternalThrowPoint::createImplicit($scope, $expr);
3653:	$impurePoints = $result->getImpurePoints();
3654:	$impurePoints[] = new ImpurePoint(
3655:	$scope,
3656:	$expr,
3657:	'yieldFrom',
3658:	'yield from',
3659:	true,
3660:	);
3661:	$hasYield = true;
3662:	$isAlwaysTerminating = $result->isAlwaysTerminating();
3663:
3664:	$scope = $result->getScope();
3665:	} elseif ($expr instanceof BooleanNot) {
3666:	$result = $this->processExprNode($stmt, $expr->expr, $scope, $nodeCallback, $context->enterDeep());
3667:	$scope = $result->getScope();
3668:	$hasYield = $result->hasYield();
3669:	$throwPoints = $result->getThrowPoints();
3670:	$impurePoints = $result->getImpurePoints();
3671:	$isAlwaysTerminating = $result->isAlwaysTerminating();
3672:	} elseif ($expr instanceof Expr\ClassConstFetch) {
3673:	$isAlwaysTerminating = false;
3674:
3675:	if ($expr->class instanceof Expr) {
3676:	$result = $this->processExprNode($stmt, $expr->class, $scope, $nodeCallback, $context->enterDeep());
3677:	$scope = $result->getScope();
3678:	$hasYield = $result->hasYield();
3679:	$throwPoints = $result->getThrowPoints();
3680:	$impurePoints = $result->getImpurePoints();
3681:	$isAlwaysTerminating = $result->isAlwaysTerminating();
3682:	} else {
3683:	$hasYield = false;
3684:	$throwPoints = [];
3685:	$impurePoints = [];
3686:	$nodeCallback($expr->class, $scope);
3687:	}
3688:
3689:	if ($expr->name instanceof Expr) {
3690:	$result = $this->processExprNode($stmt, $expr->name, $scope, $nodeCallback, $context->enterDeep());
3691:	$scope = $result->getScope();
3692:	$hasYield = $hasYield \|\| $result->hasYield();
3693:	$throwPoints = array_merge($throwPoints, $result->getThrowPoints());
3694:	$impurePoints = array_merge($impurePoints, $result->getImpurePoints());
3695:	$isAlwaysTerminating = $isAlwaysTerminating \|\| $result->isAlwaysTerminating();
3696:	} else {
3697:	$nodeCallback($expr->name, $scope);
3698:	}
3699:	} elseif ($expr instanceof Expr\Empty_) {
3700:	$nonNullabilityResult = $this->ensureNonNullability($scope, $expr->expr);
3701:	$scope = $this->lookForSetAllowedUndefinedExpressions($nonNullabilityResult->getScope(), $expr->expr);
3702:	$result = $this->processExprNode($stmt, $expr->expr, $scope, $nodeCallback, $context->enterDeep());
3703:	$scope = $result->getScope();
3704:	$hasYield = $result->hasYield();
3705:	$throwPoints = $result->getThrowPoints();
3706:	$impurePoints = $result->getImpurePoints();
3707:	$isAlwaysTerminating = $result->isAlwaysTerminating();
3708:	$scope = $this->revertNonNullability($scope, $nonNullabilityResult->getSpecifiedExpressions());
3709:	$scope = $this->lookForUnsetAllowedUndefinedExpressions($scope, $expr->expr);
3710:	} elseif ($expr instanceof Expr\Isset_) {
3711:	$hasYield = false;
3712:	$throwPoints = [];
3713:	$impurePoints = [];
3714:	$nonNullabilityResults = [];
3715:	$isAlwaysTerminating = false;
3716:	foreach ($expr->vars as $var) {
3717:	$nonNullabilityResult = $this->ensureNonNullability($scope, $var);
3718:	$scope = $this->lookForSetAllowedUndefinedExpressions($nonNullabilityResult->getScope(), $var);
3719:	$result = $this->processExprNode($stmt, $var, $scope, $nodeCallback, $context->enterDeep());
3720:	$scope = $result->getScope();
3721:	$hasYield = $hasYield \|\| $result->hasYield();
3722:	$throwPoints = array_merge($throwPoints, $result->getThrowPoints());
3723:	$impurePoints = array_merge($impurePoints, $result->getImpurePoints());
3724:	$isAlwaysTerminating = $isAlwaysTerminating \|\| $result->isAlwaysTerminating();
3725:	$nonNullabilityResults[] = $nonNullabilityResult;
3726:	}
3727:	foreach (array_reverse($expr->vars) as $var) {
3728:	$scope = $this->lookForUnsetAllowedUndefinedExpressions($scope, $var);
3729:	}
3730:	foreach (array_reverse($nonNullabilityResults) as $nonNullabilityResult) {
3731:	$scope = $this->revertNonNullability($scope, $nonNullabilityResult->getSpecifiedExpressions());
3732:	}
3733:	} elseif ($expr instanceof Instanceof_) {
3734:	$result = $this->processExprNode($stmt, $expr->expr, $scope, $nodeCallback, $context->enterDeep());
3735:	$scope = $result->getScope();
3736:	$hasYield = $result->hasYield();
3737:	$throwPoints = $result->getThrowPoints();
3738:	$impurePoints = $result->getImpurePoints();
3739:	$isAlwaysTerminating = $result->isAlwaysTerminating();
3740:	if ($expr->class instanceof Expr) {
3741:	$result = $this->processExprNode($stmt, $expr->class, $scope, $nodeCallback, $context->enterDeep());
3742:	$scope = $result->getScope();
3743:	$hasYield = $hasYield \|\| $result->hasYield();
3744:	$throwPoints = array_merge($throwPoints, $result->getThrowPoints());
3745:	$impurePoints = array_merge($impurePoints, $result->getImpurePoints());
3746:	$isAlwaysTerminating = $isAlwaysTerminating \|\| $result->isAlwaysTerminating();
3747:	}
3748:	} elseif ($expr instanceof List_) {
3749:	// only in assign and foreach, processed elsewhere
3750:	return new ExpressionResult($scope, false, false, [], []);
3751:	} elseif ($expr instanceof New_) {
3752:	$parametersAcceptor = null;
3753:	$constructorReflection = null;
3754:	$hasYield = false;
3755:	$throwPoints = [];
3756:	$impurePoints = [];
3757:	$isAlwaysTerminating = false;
3758:	$className = null;
3759:	if ($expr->class instanceof Expr \|\| $expr->class instanceof Name) {
3760:	if ($expr->class instanceof Expr) {
3761:	$objectClasses = $scope->getType($expr)->getObjectClassNames();
3762:	if (count($objectClasses) === 1) {
3763:	$objectExprResult = $this->processExprNode($stmt, new New_(new Name($objectClasses[0])), $scope, static function (): void {
3764:	}, $context->enterDeep());
3765:	$className = $objectClasses[0];
3766:	$additionalThrowPoints = $objectExprResult->getThrowPoints();
3767:	} else {
3768:	$additionalThrowPoints = [InternalThrowPoint::createImplicit($scope, $expr)];
3769:	}
3770:
3771:	$result = $this->processExprNode($stmt, $expr->class, $scope, $nodeCallback, $context->enterDeep());
3772:	$scope = $result->getScope();
3773:	$hasYield = $result->hasYield();
3774:	$throwPoints = $result->getThrowPoints();
3775:	$impurePoints = $result->getImpurePoints();
3776:	$isAlwaysTerminating = $result->isAlwaysTerminating();
3777:	foreach ($additionalThrowPoints as $throwPoint) {
3778:	$throwPoints[] = $throwPoint;
3779:	}
3780:	} else {
3781:	$className = $scope->resolveName($expr->class);
3782:	}
3783:
3784:	$classReflection = null;
3785:	if ($className !== null && $this->reflectionProvider->hasClass($className)) {
3786:	$classReflection = $this->reflectionProvider->getClass($className);
3787:	if ($classReflection->hasConstructor()) {
3788:	$constructorReflection = $classReflection->getConstructor();
3789:	$parametersAcceptor = ParametersAcceptorSelector::selectFromArgs(
3790:	$scope,
3791:	$expr->getArgs(),
3792:	$constructorReflection->getVariants(),
3793:	$constructorReflection->getNamedArgumentsVariants(),
3794:	);
3795:	$constructorThrowPoint = $this->getConstructorThrowPoint($constructorReflection, $parametersAcceptor, $classReflection, $expr, new Name\FullyQualified($className), $expr->getArgs(), $scope);
3796:	if ($constructorThrowPoint !== null) {
3797:	$throwPoints[] = $constructorThrowPoint;
3798:	}
3799:	}
3800:	} else {
3801:	$throwPoints[] = InternalThrowPoint::createImplicit($scope, $expr);
3802:	}
3803:
3804:	if ($constructorReflection !== null) {
3805:	if (!$constructorReflection->hasSideEffects()->no()) {
3806:	$certain = $constructorReflection->isPure()->no();
3807:	$impurePoints[] = new ImpurePoint(
3808:	$scope,
3809:	$expr,
3810:	'new',
3811:	sprintf('instantiation of class %s', $constructorReflection->getDeclaringClass()->getDisplayName()),
3812:	$certain,
3813:	);
3814:	}
3815:	} elseif ($classReflection === null) {
3816:	$impurePoints[] = new ImpurePoint(
3817:	$scope,
3818:	$expr,
3819:	'new',
3820:	'instantiation of unknown class',
3821:	false,
3822:	);
3823:	}
3824:
3825:	if ($parametersAcceptor !== null) {
3826:	$expr = ArgumentsNormalizer::reorderNewArguments($parametersAcceptor, $expr) ?? $expr;
3827:	}
3828:
3829:	} else {
3830:	$classReflection = $this->reflectionProvider->getAnonymousClassReflection($expr->class, $scope); // populates $expr->class->name
3831:	if ($classReflection->hasConstructor()) {
3832:	$constructorReflection = $classReflection->getConstructor();
3833:	$parametersAcceptor = ParametersAcceptorSelector::selectFromArgs(
3834:	$scope,
3835:	$expr->getArgs(),
3836:	$constructorReflection->getVariants(),
3837:	$constructorReflection->getNamedArgumentsVariants(),
3838:	);
3839:
3840:	if ($constructorReflection->getDeclaringClass()->getName() === $classReflection->getName()) {
3841:	$constructorResult = null;
3842:	$this->processStmtNode($expr->class, $scope, static function (Node $node, Scope $scope) use ($nodeCallback, $classReflection, &$constructorResult): void {
3843:	$nodeCallback($node, $scope);
3844:	if (!$node instanceof MethodReturnStatementsNode) {
3845:	return;
3846:	}
3847:	if ($constructorResult !== null) {
3848:	return;
3849:	}
3850:	$currentClassReflection = $node->getClassReflection();
3851:	if ($currentClassReflection->getName() !== $classReflection->getName()) {
3852:	return;
3853:	}
3854:	if (!$currentClassReflection->hasConstructor()) {
3855:	return;
3856:	}
3857:	if ($currentClassReflection->getConstructor()->getName() !== $node->getMethodReflection()->getName()) {
3858:	return;
3859:	}
3860:	$constructorResult = $node;
3861:	}, StatementContext::createTopLevel());
3862:	if ($constructorResult !== null) {
3863:	$throwPoints = array_map(static fn (ThrowPoint $point) => InternalThrowPoint::createFromPublic($point), $constructorResult->getStatementResult()->getThrowPoints());
3864:	$impurePoints = $constructorResult->getImpurePoints();
3865:	}
3866:	} else {
3867:	$this->processStmtNode($expr->class, $scope, $nodeCallback, StatementContext::createTopLevel());
3868:	$declaringClass = $constructorReflection->getDeclaringClass();
3869:	$constructorThrowPoint = $this->getConstructorThrowPoint($constructorReflection, $parametersAcceptor, $classReflection, $expr, new Name\FullyQualified($declaringClass->getName()), $expr->getArgs(), $scope);
3870:	if ($constructorThrowPoint !== null) {
3871:	$throwPoints[] = $constructorThrowPoint;
3872:	}
3873:
3874:	if (!$constructorReflection->hasSideEffects()->no()) {
3875:	$certain = $constructorReflection->isPure()->no();
3876:	$impurePoints[] = new ImpurePoint(
3877:	$scope,
3878:	$expr,
3879:	'new',
3880:	sprintf('instantiation of class %s', $declaringClass->getDisplayName()),
3881:	$certain,
3882:	);
3883:	}
3884:	}
3885:	} else {
3886:	$this->processStmtNode($expr->class, $scope, $nodeCallback, StatementContext::createTopLevel());
3887:	}
3888:	}
3889:
3890:	$result = $this->processArgs($stmt, $constructorReflection, null, $parametersAcceptor, $expr, $scope, $nodeCallback, $context);
3891:	$scope = $result->getScope();
3892:	$hasYield = $hasYield \|\| $result->hasYield();
3893:	$throwPoints = array_merge($throwPoints, $result->getThrowPoints());
3894:	$impurePoints = array_merge($impurePoints, $result->getImpurePoints());
3895:	$isAlwaysTerminating = $isAlwaysTerminating \|\| $result->isAlwaysTerminating();
3896:	} elseif (
3897:	$expr instanceof Expr\PreInc
3898:	\|\| $expr instanceof Expr\PostInc
3899:	\|\| $expr instanceof Expr\PreDec
3900:	\|\| $expr instanceof Expr\PostDec
3901:	) {
3902:	$result = $this->processExprNode($stmt, $expr->var, $scope, $nodeCallback, $context->enterDeep());
3903:	$scope = $result->getScope();
3904:	$hasYield = $result->hasYield();
3905:	$throwPoints = $result->getThrowPoints();
3906:	$impurePoints = $result->getImpurePoints();
3907:	$isAlwaysTerminating = $result->isAlwaysTerminating();
3908:
3909:	$newExpr = $expr;
3910:	if ($expr instanceof Expr\PostInc) {
3911:	$newExpr = new Expr\PreInc($expr->var);
3912:	} elseif ($expr instanceof Expr\PostDec) {
3913:	$newExpr = new Expr\PreDec($expr->var);
3914:	}
3915:
3916:	$scope = $this->processVirtualAssign(
3917:	$scope,
3918:	$stmt,
3919:	$expr->var,
3920:	$newExpr,
3921:	$nodeCallback,
3922:	)->getScope();
3923:	} elseif ($expr instanceof Ternary) {
3924:	$ternaryCondResult = $this->processExprNode($stmt, $expr->cond, $scope, $nodeCallback, $context->enterDeep());
3925:	$throwPoints = $ternaryCondResult->getThrowPoints();
3926:	$impurePoints = $ternaryCondResult->getImpurePoints();
3927:	$isAlwaysTerminating = $ternaryCondResult->isAlwaysTerminating();
3928:	$ifTrueScope = $ternaryCondResult->getTruthyScope();
3929:	$ifFalseScope = $ternaryCondResult->getFalseyScope();
3930:	$ifTrueType = null;
3931:	if ($expr->if !== null) {
3932:	$ifResult = $this->processExprNode($stmt, $expr->if, $ifTrueScope, $nodeCallback, $context);
3933:	$throwPoints = array_merge($throwPoints, $ifResult->getThrowPoints());
3934:	$impurePoints = array_merge($impurePoints, $ifResult->getImpurePoints());
3935:	$ifTrueScope = $ifResult->getScope();
3936:	$ifTrueType = $ifTrueScope->getType($expr->if);
3937:	}
3938:
3939:	$elseResult = $this->processExprNode($stmt, $expr->else, $ifFalseScope, $nodeCallback, $context);
3940:	$throwPoints = array_merge($throwPoints, $elseResult->getThrowPoints());
3941:	$impurePoints = array_merge($impurePoints, $elseResult->getImpurePoints());
3942:	$ifFalseScope = $elseResult->getScope();
3943:
3944:	$condType = $scope->getType($expr->cond);
3945:	if ($condType->isTrue()->yes()) {
3946:	$finalScope = $ifTrueScope;
3947:	} elseif ($condType->isFalse()->yes()) {
3948:	$finalScope = $ifFalseScope;
3949:	} else {
3950:	if ($ifTrueType instanceof NeverType && $ifTrueType->isExplicit()) {
3951:	$finalScope = $ifFalseScope;
3952:	} else {
3953:	$ifFalseType = $ifFalseScope->getType($expr->else);
3954:
3955:	if ($ifFalseType instanceof NeverType && $ifFalseType->isExplicit()) {
3956:	$finalScope = $ifTrueScope;
3957:	} else {
3958:	$finalScope = $ifTrueScope->mergeWith($ifFalseScope);
3959:	}
3960:	}
3961:	}
3962:
3963:	return new ExpressionResult(
3964:	$finalScope,
3965:	$ternaryCondResult->hasYield(),
3966:	$isAlwaysTerminating,
3967:	$throwPoints,
3968:	$impurePoints,
3969:	static fn (): MutatingScope => $finalScope->filterByTruthyValue($expr),
3970:	static fn (): MutatingScope => $finalScope->filterByFalseyValue($expr),
3971:	);
3972:
3973:	} elseif ($expr instanceof Expr\Yield_) {
3974:	$throwPoints = [
3975:	InternalThrowPoint::createImplicit($scope, $expr),
3976:	];
3977:	$impurePoints = [
3978:	new ImpurePoint(
3979:	$scope,
3980:	$expr,
3981:	'yield',
3982:	'yield',
3983:	true,
3984:	),
3985:	];
3986:	$isAlwaysTerminating = false;
3987:	if ($expr->key !== null) {
3988:	$keyResult = $this->processExprNode($stmt, $expr->key, $scope, $nodeCallback, $context->enterDeep());
3989:	$scope = $keyResult->getScope();
3990:	$throwPoints = $keyResult->getThrowPoints();
3991:	$impurePoints = array_merge($impurePoints, $keyResult->getImpurePoints());
3992:	$isAlwaysTerminating = $keyResult->isAlwaysTerminating();
3993:	}
3994:	if ($expr->value !== null) {
3995:	$valueResult = $this->processExprNode($stmt, $expr->value, $scope, $nodeCallback, $context->enterDeep());
3996:	$scope = $valueResult->getScope();
3997:	$throwPoints = array_merge($throwPoints, $valueResult->getThrowPoints());
3998:	$impurePoints = array_merge($impurePoints, $valueResult->getImpurePoints());
3999:	$isAlwaysTerminating = $isAlwaysTerminating \|\| $valueResult->isAlwaysTerminating();
4000:	}
4001:	$hasYield = true;
4002:	} elseif ($expr instanceof Expr\Match_) {
4003:	$deepContext = $context->enterDeep();
4004:	$condType = $scope->getType($expr->cond);
4005:	$condResult = $this->processExprNode($stmt, $expr->cond, $scope, $nodeCallback, $deepContext);
4006:	$scope = $condResult->getScope();
4007:	$hasYield = $condResult->hasYield();
4008:	$throwPoints = $condResult->getThrowPoints();
4009:	$impurePoints = $condResult->getImpurePoints();
4010:	$isAlwaysTerminating = $condResult->isAlwaysTerminating();
4011:	$matchScope = $scope->enterMatch($expr);
4012:	$armNodes = [];
4013:	$hasDefaultCond = false;
4014:	$hasAlwaysTrueCond = false;
4015:	$arms = $expr->arms;
4016:	if ($condType->isEnum()->yes()) {
4017:	// enum match analysis would work even without this if branch
4018:	// but would be much slower
4019:	// this avoids using ObjectType::$subtractedType which is slow for huge enums
4020:	// because of repeated union type normalization
4021:	$enumCases = $condType->getEnumCases();
4022:	if (count($enumCases) > 0) {
4023:	$indexedEnumCases = [];
4024:	foreach ($enumCases as $enumCase) {
4025:	$indexedEnumCases[strtolower($enumCase->getClassName())][$enumCase->getEnumCaseName()] = $enumCase;
4026:	}
4027:	$unusedIndexedEnumCases = $indexedEnumCases;
4028:	foreach ($arms as $i => $arm) {
4029:	if ($arm->conds === null) {
4030:	continue;
4031:	}
4032:
4033:	$condNodes = [];
4034:	$conditionCases = [];
4035:	$conditionExprs = [];
4036:	foreach ($arm->conds as $cond) {
4037:	if (!$cond instanceof Expr\ClassConstFetch) {
4038:	continue 2;
4039:	}
4040:	if (!$cond->class instanceof Name) {
4041:	continue 2;
4042:	}
4043:	if (!$cond->name instanceof Node\Identifier) {
4044:	continue 2;
4045:	}
4046:	$fetchedClassName = $scope->resolveName($cond->class);
4047:	$loweredFetchedClassName = strtolower($fetchedClassName);
4048:	if (!array_key_exists($loweredFetchedClassName, $indexedEnumCases)) {
4049:	continue 2;
4050:	}
4051:
4052:	if (!array_key_exists($loweredFetchedClassName, $unusedIndexedEnumCases)) {
4053:	throw new ShouldNotHappenException();
4054:	}
4055:
4056:	$caseName = $cond->name->toString();
4057:	if (!array_key_exists($caseName, $indexedEnumCases[$loweredFetchedClassName])) {
4058:	continue 2;
4059:	}
4060:
4061:	$enumCase = $indexedEnumCases[$loweredFetchedClassName][$caseName];
4062:	$conditionCases[] = $enumCase;
4063:	$armConditionScope = $matchScope;
4064:	if (!array_key_exists($caseName, $unusedIndexedEnumCases[$loweredFetchedClassName])) {
4065:	// force "always false"
4066:	$armConditionScope = $armConditionScope->removeTypeFromExpression(
4067:	$expr->cond,
4068:	$enumCase,
4069:	);
4070:	} else {
4071:	$unusedCasesCount = 0;
4072:	foreach ($unusedIndexedEnumCases as $cases) {
4073:	$unusedCasesCount += count($cases);
4074:	}
4075:	if ($unusedCasesCount === 1) {
4076:	$hasAlwaysTrueCond = true;
4077:
4078:	// force "always true"
4079:	$armConditionScope = $armConditionScope->addTypeToExpression(
4080:	$expr->cond,
4081:	$enumCase,
4082:	);
4083:	}
4084:	}
4085:
4086:	$this->processExprNode($stmt, $cond, $armConditionScope, $nodeCallback, $deepContext);
4087:
4088:	$condNodes[] = new MatchExpressionArmCondition(
4089:	$cond,
4090:	$armConditionScope,
4091:	$cond->getStartLine(),
4092:	);
4093:	$conditionExprs[] = $cond;
4094:
4095:	unset($unusedIndexedEnumCases[$loweredFetchedClassName][$caseName]);
4096:	}
4097:
4098:	$conditionCasesCount = count($conditionCases);
4099:	if ($conditionCasesCount === 0) {
4100:	throw new ShouldNotHappenException();
4101:	} elseif ($conditionCasesCount === 1) {
4102:	$conditionCaseType = $conditionCases[0];
4103:	} else {
4104:	$conditionCaseType = new UnionType($conditionCases);
4105:	}
4106:
4107:	$filteringExpr = $this->getFilteringExprForMatchArm($expr, $conditionExprs);
4108:	$matchArmBodyScope = $matchScope->addTypeToExpression(
4109:	$expr->cond,
4110:	$conditionCaseType,
4111:	)->filterByTruthyValue($filteringExpr);
4112:	$matchArmBody = new MatchExpressionArmBody($matchArmBodyScope, $arm->body);
4113:	$armNodes[$i] = new MatchExpressionArm($matchArmBody, $condNodes, $arm->getStartLine());
4114:
4115:	$armResult = $this->processExprNode(
4116:	$stmt,
4117:	$arm->body,
4118:	$matchArmBodyScope,
4119:	$nodeCallback,
4120:	ExpressionContext::createTopLevel(),
4121:	);
4122:	$armScope = $armResult->getScope();
4123:	$scope = $scope->mergeWith($armScope);
4124:	$hasYield = $hasYield \|\| $armResult->hasYield();
4125:	$throwPoints = array_merge($throwPoints, $armResult->getThrowPoints());
4126:	$impurePoints = array_merge($impurePoints, $armResult->getImpurePoints());
4127:
4128:	unset($arms[$i]);
4129:	}
4130:
4131:	$remainingCases = [];
4132:	foreach ($unusedIndexedEnumCases as $cases) {
4133:	foreach ($cases as $case) {
4134:	$remainingCases[] = $case;
4135:	}
4136:	}
4137:
4138:	$remainingCasesCount = count($remainingCases);
4139:	if ($remainingCasesCount === 0) {
4140:	$remainingType = new NeverType();
4141:	} elseif ($remainingCasesCount === 1) {
4142:	$remainingType = $remainingCases[0];
4143:	} else {
4144:	$remainingType = new UnionType($remainingCases);
4145:	}
4146:
4147:	$matchScope = $matchScope->addTypeToExpression($expr->cond, $remainingType);
4148:	}
4149:	}
4150:	foreach ($arms as $i => $arm) {
4151:	if ($arm->conds === null) {
4152:	$hasDefaultCond = true;
4153:	$matchArmBody = new MatchExpressionArmBody($matchScope, $arm->body);
4154:	$armNodes[$i] = new MatchExpressionArm($matchArmBody, [], $arm->getStartLine());
4155:	$armResult = $this->processExprNode($stmt, $arm->body, $matchScope, $nodeCallback, ExpressionContext::createTopLevel());
4156:	$matchScope = $armResult->getScope();
4157:	$hasYield = $hasYield \|\| $armResult->hasYield();
4158:	$throwPoints = array_merge($throwPoints, $armResult->getThrowPoints());
4159:	$impurePoints = array_merge($impurePoints, $armResult->getImpurePoints());
4160:	$scope = $scope->mergeWith($matchScope);
4161:	continue;
4162:	}
4163:
4164:	if (count($arm->conds) === 0) {
4165:	throw new ShouldNotHappenException();
4166:	}
4167:
4168:	$filteringExprs = [];
4169:	$armCondScope = $matchScope;
4170:	$condNodes = [];
4171:	foreach ($arm->conds as $armCond) {
4172:	$condNodes[] = new MatchExpressionArmCondition($armCond, $armCondScope, $armCond->getStartLine());
4173:	$armCondResult = $this->processExprNode($stmt, $armCond, $armCondScope, $nodeCallback, $deepContext);
4174:	$hasYield = $hasYield \|\| $armCondResult->hasYield();
4175:	$throwPoints = array_merge($throwPoints, $armCondResult->getThrowPoints());
4176:	$impurePoints = array_merge($impurePoints, $armCondResult->getImpurePoints());
4177:	$armCondExpr = new BinaryOp\Identical($expr->cond, $armCond);
4178:	$armCondResultScope = $armCondResult->getScope();
4179:	$armCondType = $this->treatPhpDocTypesAsCertain ? $armCondResultScope->getType($armCondExpr) : $armCondResultScope->getNativeType($armCondExpr);
4180:	if ($armCondType->isTrue()->yes()) {
4181:	$hasAlwaysTrueCond = true;
4182:	}
4183:	$armCondScope = $armCondResult->getScope()->filterByFalseyValue($armCondExpr);
4184:	$filteringExprs[] = $armCond;
4185:	}
4186:
4187:	$filteringExpr = $this->getFilteringExprForMatchArm($expr, $filteringExprs);
4188:
4189:	$bodyScope = $this->processExprNode($stmt, $filteringExpr, $matchScope, static function (): void {
4190:	}, $deepContext)->getTruthyScope();
4191:	$matchArmBody = new MatchExpressionArmBody($bodyScope, $arm->body);
4192:	$armNodes[$i] = new MatchExpressionArm($matchArmBody, $condNodes, $arm->getStartLine());
4193:
4194:	$armResult = $this->processExprNode(
4195:	$stmt,
4196:	$arm->body,
4197:	$bodyScope,
4198:	$nodeCallback,
4199:	ExpressionContext::createTopLevel(),
4200:	);
4201:	$armScope = $armResult->getScope();
4202:	$scope = $scope->mergeWith($armScope);
4203:	$hasYield = $hasYield \|\| $armResult->hasYield();
4204:	$throwPoints = array_merge($throwPoints, $armResult->getThrowPoints());
4205:	$impurePoints = array_merge($impurePoints, $armResult->getImpurePoints());
4206:	$matchScope = $matchScope->filterByFalseyValue($filteringExpr);
4207:	}
4208:
4209:	$remainingType = $matchScope->getType($expr->cond);
4210:	if (!$hasDefaultCond && !$hasAlwaysTrueCond && !$remainingType instanceof NeverType) {
4211:	$throwPoints[] = InternalThrowPoint::createExplicit($scope, new ObjectType(UnhandledMatchError::class), $expr, false);
4212:	}
4213:
4214:	ksort($armNodes, SORT_NUMERIC);
4215:
4216:	$nodeCallback(new MatchExpressionNode($expr->cond, array_values($armNodes), $expr, $matchScope), $scope);
4217:	} elseif ($expr instanceof AlwaysRememberedExpr) {
4218:	$result = $this->processExprNode($stmt, $expr->getExpr(), $scope, $nodeCallback, $context);
4219:	$hasYield = $result->hasYield();
4220:	$throwPoints = $result->getThrowPoints();
4221:	$impurePoints = $result->getImpurePoints();
4222:	$isAlwaysTerminating = $result->isAlwaysTerminating();
4223:	$scope = $result->getScope();
4224:	} elseif ($expr instanceof Expr\Throw_) {
4225:	$hasYield = false;
4226:	$result = $this->processExprNode($stmt, $expr->expr, $scope, $nodeCallback, ExpressionContext::createDeep());
4227:	$throwPoints = $result->getThrowPoints();
4228:	$impurePoints = $result->getImpurePoints();
4229:	$isAlwaysTerminating = $result->isAlwaysTerminating();
4230:	$throwPoints[] = InternalThrowPoint::createExplicit($scope, $scope->getType($expr->expr), $expr, false);
4231:	} elseif ($expr instanceof FunctionCallableNode) {
4232:	$throwPoints = [];
4233:	$impurePoints = [];
4234:	$hasYield = false;
4235:	$isAlwaysTerminating = false;
4236:	if ($expr->getName() instanceof Expr) {
4237:	$result = $this->processExprNode($stmt, $expr->getName(), $scope, $nodeCallback, ExpressionContext::createDeep());
4238:	$scope = $result->getScope();
4239:	$hasYield = $result->hasYield();
4240:	$throwPoints = $result->getThrowPoints();
4241:	$impurePoints = $result->getImpurePoints();
4242:	$isAlwaysTerminating = $result->isAlwaysTerminating();
4243:	}
4244:	} elseif ($expr instanceof MethodCallableNode) {
4245:	$result = $this->processExprNode($stmt, $expr->getVar(), $scope, $nodeCallback, ExpressionContext::createDeep());
4246:	$scope = $result->getScope();
4247:	$hasYield = $result->hasYield();
4248:	$throwPoints = $result->getThrowPoints();
4249:	$impurePoints = $result->getImpurePoints();
4250:	$isAlwaysTerminating = false;
4251:	if ($expr->getName() instanceof Expr) {
4252:	$nameResult = $this->processExprNode($stmt, $expr->getVar(), $scope, $nodeCallback, ExpressionContext::createDeep());
4253:	$scope = $nameResult->getScope();
4254:	$hasYield = $hasYield \|\| $nameResult->hasYield();
4255:	$throwPoints = array_merge($throwPoints, $nameResult->getThrowPoints());
4256:	$impurePoints = array_merge($impurePoints, $nameResult->getImpurePoints());
4257:	$isAlwaysTerminating = $nameResult->isAlwaysTerminating();
4258:	}
4259:	} elseif ($expr instanceof StaticMethodCallableNode) {
4260:	$throwPoints = [];
4261:	$impurePoints = [];
4262:	$hasYield = false;
4263:	$isAlwaysTerminating = false;
4264:	if ($expr->getClass() instanceof Expr) {
4265:	$classResult = $this->processExprNode($stmt, $expr->getClass(), $scope, $nodeCallback, ExpressionContext::createDeep());
4266:	$scope = $classResult->getScope();
4267:	$hasYield = $classResult->hasYield();
4268:	$throwPoints = $classResult->getThrowPoints();
4269:	$impurePoints = $classResult->getImpurePoints();
4270:	$isAlwaysTerminating = $classResult->isAlwaysTerminating();
4271:	}
4272:	if ($expr->getName() instanceof Expr) {
4273:	$nameResult = $this->processExprNode($stmt, $expr->getName(), $scope, $nodeCallback, ExpressionContext::createDeep());
4274:	$scope = $nameResult->getScope();
4275:	$hasYield = $hasYield \|\| $nameResult->hasYield();
4276:	$throwPoints = array_merge($throwPoints, $nameResult->getThrowPoints());
4277:	$impurePoints = array_merge($impurePoints, $nameResult->getImpurePoints());
4278:	$isAlwaysTerminating = $isAlwaysTerminating \|\| $nameResult->isAlwaysTerminating();
4279:	}
4280:	} elseif ($expr instanceof InstantiationCallableNode) {
4281:	$throwPoints = [];
4282:	$impurePoints = [];
4283:	$hasYield = false;
4284:	$isAlwaysTerminating = false;
4285:	if ($expr->getClass() instanceof Expr) {
4286:	$classResult = $this->processExprNode($stmt, $expr->getClass(), $scope, $nodeCallback, ExpressionContext::createDeep());
4287:	$scope = $classResult->getScope();
4288:	$hasYield = $classResult->hasYield();
4289:	$throwPoints = $classResult->getThrowPoints();
4290:	$impurePoints = $classResult->getImpurePoints();
4291:	$isAlwaysTerminating = $classResult->isAlwaysTerminating();
4292:	}
4293:	} elseif ($expr instanceof Node\Scalar) {
4294:	$hasYield = false;
4295:	$throwPoints = [];
4296:	$impurePoints = [];
4297:	$isAlwaysTerminating = false;
4298:	} elseif ($expr instanceof ConstFetch) {
4299:	$hasYield = false;
4300:	$throwPoints = [];
4301:	$impurePoints = [];
4302:	$isAlwaysTerminating = false;
4303:	$nodeCallback($expr->name, $scope);
4304:	} else {
4305:	$hasYield = false;
4306:	$throwPoints = [];
4307:	$impurePoints = [];
4308:	$isAlwaysTerminating = false;
4309:	}
4310:
4311:	return new ExpressionResult(
4312:	$scope,
4313:	$hasYield,
4314:	$isAlwaysTerminating,
4315:	$throwPoints,
4316:	$impurePoints,
4317:	static fn (): MutatingScope => $scope->filterByTruthyValue($expr),
4318:	static fn (): MutatingScope => $scope->filterByFalseyValue($expr),
4319:	);
4320:	}
4321:
4322:	private function getArrayFunctionAppendingType(FunctionReflection $functionReflection, Scope $scope, FuncCall $expr): Type
4323:	{
4324:	$arrayArg = $expr->getArgs()[0]->value;
4325:	$arrayType = $scope->getType($arrayArg);
4326:	$callArgs = array_slice($expr->getArgs(), 1);
4327:
4328:	/**
4329:	* @param Arg[] $callArgs
4330:	* @param callable(?Type, Type, bool): void $setOffsetValueType
4331:	*/
4332:	$setOffsetValueTypes = static function (Scope $scope, array $callArgs, callable $setOffsetValueType, ?bool &$nonConstantArrayWasUnpacked = null): void {
4333:	foreach ($callArgs as $callArg) {
4334:	$callArgType = $scope->getType($callArg->value);
4335:	if ($callArg->unpack) {
4336:	$constantArrays = $callArgType->getConstantArrays();
4337:	if (count($constantArrays) === 1) {
4338:	$iterableValueTypes = $constantArrays[0]->getValueTypes();
4339:	} else {
4340:	$iterableValueTypes = [$callArgType->getIterableValueType()];
4341:	$nonConstantArrayWasUnpacked = true;
4342:	}
4343:
4344:	$isOptional = !$callArgType->isIterableAtLeastOnce()->yes();
4345:	foreach ($iterableValueTypes as $iterableValueType) {
4346:	if ($iterableValueType instanceof UnionType) {
4347:	foreach ($iterableValueType->getTypes() as $innerType) {
4348:	$setOffsetValueType(null, $innerType, $isOptional);
4349:	}
4350:	} else {
4351:	$setOffsetValueType(null, $iterableValueType, $isOptional);
4352:	}
4353:	}
4354:	continue;
4355:	}
4356:	$setOffsetValueType(null, $callArgType, false);
4357:	}
4358:	};
4359:
4360:	$constantArrays = $arrayType->getConstantArrays();
4361:	if (count($constantArrays) > 0) {
4362:	$newArrayTypes = [];
4363:	$prepend = $functionReflection->getName() === 'array_unshift';
4364:	foreach ($constantArrays as $constantArray) {
4365:	$arrayTypeBuilder = $prepend ? ConstantArrayTypeBuilder::createEmpty() : ConstantArrayTypeBuilder::createFromConstantArray($constantArray);
4366:
4367:	$setOffsetValueTypes(
4368:	$scope,
4369:	$callArgs,
4370:	static function (?Type $offsetType, Type $valueType, bool $optional) use (&$arrayTypeBuilder): void {
4371:	$arrayTypeBuilder->setOffsetValueType($offsetType, $valueType, $optional);
4372:	},
4373:	$nonConstantArrayWasUnpacked,
4374:	);
4375:
4376:	if ($prepend) {
4377:	$keyTypes = $constantArray->getKeyTypes();
4378:	$valueTypes = $constantArray->getValueTypes();
4379:	foreach ($keyTypes as $k => $keyType) {
4380:	$arrayTypeBuilder->setOffsetValueType(
4381:	count($keyType->getConstantStrings()) === 1 ? $keyType->getConstantStrings()[0] : null,
4382:	$valueTypes[$k],
4383:	$constantArray->isOptionalKey($k),
4384:	);
4385:	}
4386:	}
4387:
4388:	$constantArray = $arrayTypeBuilder->getArray();
4389:
4390:	if ($constantArray->isConstantArray()->yes() && $nonConstantArrayWasUnpacked) {
4391:	$array = new ArrayType($constantArray->generalize(GeneralizePrecision::lessSpecific())->getIterableKeyType(), $constantArray->getIterableValueType());
4392:	$isList = $constantArray->isList()->yes();
4393:	$constantArray = $constantArray->isIterableAtLeastOnce()->yes()
4394:	? TypeCombinator::intersect($array, new NonEmptyArrayType())
4395:	: $array;
4396:	$constantArray = $isList
4397:	? TypeCombinator::intersect($constantArray, new AccessoryArrayListType())
4398:	: $constantArray;
4399:	}
4400:
4401:	$newArrayTypes[] = $constantArray;
4402:	}
4403:
4404:	return TypeCombinator::union(...$newArrayTypes);
4405:	}
4406:
4407:	$setOffsetValueTypes(
4408:	$scope,
4409:	$callArgs,
4410:	static function (?Type $offsetType, Type $valueType, bool $optional) use (&$arrayType): void {
4411:	$isIterableAtLeastOnce = $arrayType->isIterableAtLeastOnce()->yes() \|\| !$optional;
4412:	$arrayType = $arrayType->setOffsetValueType($offsetType, $valueType);
4413:	if ($isIterableAtLeastOnce) {
4414:	return;
4415:	}
4416:
4417:	$arrayType = TypeCombinator::union($arrayType, new ConstantArrayType([], []));
4418:	},
4419:	);
4420:
4421:	return $arrayType;
4422:	}
4423:
4424:	private function getArraySortPreserveListFunctionType(Type $type): Type
4425:	{
4426:	$isIterableAtLeastOnce = $type->isIterableAtLeastOnce();
4427:	if ($isIterableAtLeastOnce->no()) {
4428:	return $type;
4429:	}
4430:
4431:	return TypeTraverser::map($type, static function (Type $type, callable $traverse) use ($isIterableAtLeastOnce): Type {
4432:	if ($type instanceof UnionType \|\| $type instanceof IntersectionType) {
4433:	return $traverse($type);
4434:	}
4435:
4436:	if (!$type instanceof ArrayType && !$type instanceof ConstantArrayType) {
4437:	return $type;
4438:	}
4439:
4440:	$newArrayType = TypeCombinator::intersect(new ArrayType(new IntegerType(), $type->getIterableValueType()), new AccessoryArrayListType());
4441:	if ($isIterableAtLeastOnce->yes()) {
4442:	$newArrayType = TypeCombinator::intersect($newArrayType, new NonEmptyArrayType());
4443:	}
4444:
4445:	return $newArrayType;
4446:	});
4447:	}
4448:
4449:	private function getArraySortDoNotPreserveListFunctionType(Type $type): Type
4450:	{
4451:	$isIterableAtLeastOnce = $type->isIterableAtLeastOnce();
4452:	if ($isIterableAtLeastOnce->no()) {
4453:	return $type;
4454:	}
4455:
4456:	return TypeTraverser::map($type, static function (Type $type, callable $traverse) use ($isIterableAtLeastOnce): Type {
4457:	if ($type instanceof UnionType) {
4458:	return $traverse($type);
4459:	}
4460:
4461:	$constantArrays = $type->getConstantArrays();
4462:	if (count($constantArrays) > 0) {
4463:	$types = [];
4464:	foreach ($constantArrays as $constantArray) {
4465:	$types[] = new ConstantArrayType(
4466:	$constantArray->getKeyTypes(),
4467:	$constantArray->getValueTypes(),
4468:	$constantArray->getNextAutoIndexes(),
4469:	$constantArray->getOptionalKeys(),
4470:	$constantArray->isList()->and(TrinaryLogic::createMaybe()),
4471:	);
4472:	}
4473:
4474:	return TypeCombinator::union(...$types);
4475:	}
4476:
4477:	$newArrayType = new ArrayType($type->getIterableKeyType(), $type->getIterableValueType());
4478:	if ($isIterableAtLeastOnce->yes()) {
4479:	$newArrayType = TypeCombinator::intersect($newArrayType, new NonEmptyArrayType());
4480:	}
4481:
4482:	return $newArrayType;
4483:	});
4484:	}
4485:
4486:	private function getFunctionThrowPoint(
4487:	FunctionReflection $functionReflection,
4488:	?ParametersAcceptor $parametersAcceptor,
4489:	FuncCall $funcCall,
4490:	MutatingScope $scope,
4491:	): ?InternalThrowPoint
4492:	{
4493:	$normalizedFuncCall = $funcCall;
4494:	if ($parametersAcceptor !== null) {
4495:	$normalizedFuncCall = ArgumentsNormalizer::reorderFuncArguments($parametersAcceptor, $funcCall);
4496:	}
4497:
4498:	if ($normalizedFuncCall !== null) {
4499:	foreach ($this->dynamicThrowTypeExtensionProvider->getDynamicFunctionThrowTypeExtensions() as $extension) {
4500:	if (!$extension->isFunctionSupported($functionReflection)) {
4501:	continue;
4502:	}
4503:
4504:	$throwType = $extension->getThrowTypeFromFunctionCall($functionReflection, $normalizedFuncCall, $scope);
4505:	if ($throwType === null) {
4506:	return null;
4507:	}
4508:
4509:	return InternalThrowPoint::createExplicit($scope, $throwType, $funcCall, false);
4510:	}
4511:	}
4512:
4513:	$throwType = $functionReflection->getThrowType();
4514:	if ($throwType === null && $parametersAcceptor !== null) {
4515:	$returnType = $parametersAcceptor->getReturnType();
4516:	if ($returnType instanceof NeverType && $returnType->isExplicit()) {
4517:	$throwType = new ObjectType(Throwable::class);
4518:	}
4519:	}
4520:
4521:	if ($throwType !== null) {
4522:	if (!$throwType->isVoid()->yes()) {
4523:	return InternalThrowPoint::createExplicit($scope, $throwType, $funcCall, true);
4524:	}
4525:	} elseif ($this->implicitThrows) {
4526:	$requiredParameters = null;
4527:	if ($parametersAcceptor !== null) {
4528:	$requiredParameters = 0;
4529:	foreach ($parametersAcceptor->getParameters() as $parameter) {
4530:	if ($parameter->isOptional()) {
4531:	continue;
4532:	}
4533:
4534:	$requiredParameters++;
4535:	}
4536:	}
4537:	if (
4538:	!$functionReflection->isBuiltin()
4539:	\|\| $requiredParameters === null
4540:	\|\| $requiredParameters > 0
4541:	\|\| count($funcCall->getArgs()) > 0
4542:	) {
4543:	$functionReturnedType = $scope->getType($funcCall);
4544:	if (!(new ObjectType(Throwable::class))->isSuperTypeOf($functionReturnedType)->yes()) {
4545:	return InternalThrowPoint::createImplicit($scope, $funcCall);
4546:	}
4547:	}
4548:	}
4549:
4550:	return null;
4551:	}
4552:
4553:	private function getMethodThrowPoint(MethodReflection $methodReflection, ParametersAcceptor $parametersAcceptor, MethodCall $methodCall, MutatingScope $scope): ?InternalThrowPoint
4554:	{
4555:	$normalizedMethodCall = ArgumentsNormalizer::reorderMethodArguments($parametersAcceptor, $methodCall);
4556:	if ($normalizedMethodCall !== null) {
4557:	foreach ($this->dynamicThrowTypeExtensionProvider->getDynamicMethodThrowTypeExtensions() as $extension) {
4558:	if (!$extension->isMethodSupported($methodReflection)) {
4559:	continue;
4560:	}
4561:
4562:	$throwType = $extension->getThrowTypeFromMethodCall($methodReflection, $normalizedMethodCall, $scope);
4563:	if ($throwType === null) {
4564:	return null;
4565:	}
4566:
4567:	return InternalThrowPoint::createExplicit($scope, $throwType, $methodCall, false);
4568:	}
4569:	}
4570:
4571:	$throwType = $methodReflection->getThrowType();
4572:	if ($throwType === null) {
4573:	$returnType = $parametersAcceptor->getReturnType();
4574:	if ($returnType instanceof NeverType && $returnType->isExplicit()) {
4575:	$throwType = new ObjectType(Throwable::class);
4576:	}
4577:	}
4578:
4579:	if ($throwType !== null) {
4580:	if (!$throwType->isVoid()->yes()) {
4581:	return InternalThrowPoint::createExplicit($scope, $throwType, $methodCall, true);
4582:	}
4583:	} elseif ($this->implicitThrows) {
4584:	$methodReturnedType = $scope->getType($methodCall);
4585:	if (!(new ObjectType(Throwable::class))->isSuperTypeOf($methodReturnedType)->yes()) {
4586:	return InternalThrowPoint::createImplicit($scope, $methodCall);
4587:	}
4588:	}
4589:
4590:	return null;
4591:	}
4592:
4593:	/**
4594:	* @param list<Node\Arg> $args
4595:	*/
4596:	private function getConstructorThrowPoint(MethodReflection $constructorReflection, ParametersAcceptor $parametersAcceptor, ClassReflection $classReflection, New_ $new, Name $className, array $args, MutatingScope $scope): ?InternalThrowPoint
4597:	{
4598:	$methodCall = new StaticCall($className, $constructorReflection->getName(), $args);
4599:	$normalizedMethodCall = ArgumentsNormalizer::reorderStaticCallArguments($parametersAcceptor, $methodCall);
4600:	if ($normalizedMethodCall !== null) {
4601:	foreach ($this->dynamicThrowTypeExtensionProvider->getDynamicStaticMethodThrowTypeExtensions() as $extension) {
4602:	if (!$extension->isStaticMethodSupported($constructorReflection)) {
4603:	continue;
4604:	}
4605:
4606:	$throwType = $extension->getThrowTypeFromStaticMethodCall($constructorReflection, $normalizedMethodCall, $scope);
4607:	if ($throwType === null) {
4608:	return null;
4609:	}
4610:
4611:	return InternalThrowPoint::createExplicit($scope, $throwType, $new, false);
4612:	}
4613:	}
4614:
4615:	if ($constructorReflection->getThrowType() !== null) {
4616:	$throwType = $constructorReflection->getThrowType();
4617:	if (!$throwType->isVoid()->yes()) {
4618:	return InternalThrowPoint::createExplicit($scope, $throwType, $new, true);
4619:	}
4620:	} elseif ($this->implicitThrows) {
4621:	if (!$classReflection->is(Throwable::class)) {
4622:	return InternalThrowPoint::createImplicit($scope, $methodCall);
4623:	}
4624:	}
4625:
4626:	return null;
4627:	}
4628:
4629:	private function getStaticMethodThrowPoint(MethodReflection $methodReflection, ParametersAcceptor $parametersAcceptor, StaticCall $methodCall, MutatingScope $scope): ?InternalThrowPoint
4630:	{
4631:	$normalizedMethodCall = ArgumentsNormalizer::reorderStaticCallArguments($parametersAcceptor, $methodCall);
4632:	if ($normalizedMethodCall !== null) {
4633:	foreach ($this->dynamicThrowTypeExtensionProvider->getDynamicStaticMethodThrowTypeExtensions() as $extension) {
4634:	if (!$extension->isStaticMethodSupported($methodReflection)) {
4635:	continue;
4636:	}
4637:
4638:	$throwType = $extension->getThrowTypeFromStaticMethodCall($methodReflection, $normalizedMethodCall, $scope);
4639:	if ($throwType === null) {
4640:	return null;
4641:	}
4642:
4643:	return InternalThrowPoint::createExplicit($scope, $throwType, $methodCall, false);
4644:	}
4645:	}
4646:
4647:	if ($methodReflection->getThrowType() !== null) {
4648:	$throwType = $methodReflection->getThrowType();
4649:	if (!$throwType->isVoid()->yes()) {
4650:	return InternalThrowPoint::createExplicit($scope, $throwType, $methodCall, true);
4651:	}
4652:	} elseif ($this->implicitThrows) {
4653:	$methodReturnedType = $scope->getType($methodCall);
4654:	if (!(new ObjectType(Throwable::class))->isSuperTypeOf($methodReturnedType)->yes()) {
4655:	return InternalThrowPoint::createImplicit($scope, $methodCall);
4656:	}
4657:	}
4658:
4659:	return null;
4660:	}
4661:
4662:	/**
4663:	* @return InternalThrowPoint[]
4664:	*/
4665:	private function getPropertyReadThrowPointsFromGetHook(
4666:	MutatingScope $scope,
4667:	PropertyFetch $propertyFetch,
4668:	PhpPropertyReflection $propertyReflection,
4669:	): array
4670:	{
4671:	return $this->getThrowPointsFromPropertyHook($scope, $propertyFetch, $propertyReflection, 'get');
4672:	}
4673:
4674:	/**
4675:	* @return InternalThrowPoint[]
4676:	*/
4677:	private function getPropertyAssignThrowPointsFromSetHook(
4678:	MutatingScope $scope,
4679:	PropertyFetch $propertyFetch,
4680:	PhpPropertyReflection $propertyReflection,
4681:	): array
4682:	{
4683:	return $this->getThrowPointsFromPropertyHook($scope, $propertyFetch, $propertyReflection, 'set');
4684:	}
4685:
4686:	/**
4687:	* @param 'get'\|'set' $hookName
4688:	* @return InternalThrowPoint[]
4689:	*/
4690:	private function getThrowPointsFromPropertyHook(
4691:	MutatingScope $scope,
4692:	PropertyFetch $propertyFetch,
4693:	PhpPropertyReflection $propertyReflection,
4694:	string $hookName,
4695:	): array
4696:	{
4697:	$scopeFunction = $scope->getFunction();
4698:	if (
4699:	$scopeFunction instanceof PhpMethodFromParserNodeReflection
4700:	&& $scopeFunction->isPropertyHook()
4701:	&& $propertyFetch->var instanceof Variable
4702:	&& $propertyFetch->var->name === 'this'
4703:	&& $propertyFetch->name instanceof Identifier
4704:	&& $propertyFetch->name->toString() === $scopeFunction->getHookedPropertyName()
4705:	) {
4706:	return [];
4707:	}
4708:	$declaringClass = $propertyReflection->getDeclaringClass();
4709:	if (!$propertyReflection->hasHook($hookName)) {
4710:	if (
4711:	$propertyReflection->isPrivate()
4712:	\|\| $propertyReflection->isFinal()->yes()
4713:	\|\| $declaringClass->isFinal()
4714:	) {
4715:	return [];
4716:	}
4717:
4718:	if ($this->implicitThrows) {
4719:	return [InternalThrowPoint::createImplicit($scope, $propertyFetch)];
4720:	}
4721:
4722:	return [];
4723:	}
4724:
4725:	$getHook = $propertyReflection->getHook($hookName);
4726:	$throwType = $getHook->getThrowType();
4727:
4728:	if ($throwType !== null) {
4729:	if (!$throwType->isVoid()->yes()) {
4730:	return [InternalThrowPoint::createExplicit($scope, $throwType, $propertyFetch, true)];
4731:	}
4732:	} elseif ($this->implicitThrows) {
4733:	return [InternalThrowPoint::createImplicit($scope, $propertyFetch)];
4734:	}
4735:
4736:	return [];
4737:	}
4738:
4739:	/**
4740:	* @return string[]
4741:	*/
4742:	private function getAssignedVariables(Expr $expr): array
4743:	{
4744:	if ($expr instanceof Expr\Variable) {
4745:	if (is_string($expr->name)) {
4746:	return [$expr->name];
4747:	}
4748:
4749:	return [];
4750:	}
4751:
4752:	if ($expr instanceof Expr\List_) {
4753:	$names = [];
4754:	foreach ($expr->items as $item) {
4755:	if ($item === null) {
4756:	continue;
4757:	}
4758:
4759:	$names = array_merge($names, $this->getAssignedVariables($item->value));
4760:	}
4761:
4762:	return $names;
4763:	}
4764:
4765:	if ($expr instanceof ArrayDimFetch) {
4766:	return $this->getAssignedVariables($expr->var);
4767:	}
4768:
4769:	return [];
4770:	}
4771:
4772:	/**
4773:	* @param callable(Node $node, Scope $scope): void $nodeCallback
4774:	*/
4775:	private function callNodeCallbackWithExpression(
4776:	callable $nodeCallback,
4777:	Expr $expr,
4778:	MutatingScope $scope,
4779:	ExpressionContext $context,
4780:	): void
4781:	{
4782:	if ($context->isDeep()) {
4783:	$scope = $scope->exitFirstLevelStatements();
4784:	}
4785:	$nodeCallback($expr, $scope);
4786:	}
4787:
4788:	/**
4789:	* @param callable(Node $node, Scope $scope): void $nodeCallback
4790:	*/
4791:	private function processClosureNode(
4792:	Node\Stmt $stmt,
4793:	Expr\Closure $expr,
4794:	MutatingScope $scope,
4795:	callable $nodeCallback,
4796:	ExpressionContext $context,
4797:	?Type $passedToType,
4798:	): ProcessClosureResult
4799:	{
4800:	foreach ($expr->params as $param) {
4801:	$this->processParamNode($stmt, $param, $scope, $nodeCallback);
4802:	}
4803:
4804:	$byRefUses = [];
4805:
4806:	$closureCallArgs = $expr->getAttribute(ClosureArgVisitor::ATTRIBUTE_NAME);
4807:	$callableParameters = $this->createCallableParameters(
4808:	$scope,
4809:	$expr,
4810:	$closureCallArgs,
4811:	$passedToType,
4812:	);
4813:
4814:	$useScope = $scope;
4815:	foreach ($expr->uses as $use) {
4816:	if ($use->byRef) {
4817:	$byRefUses[] = $use;
4818:	$useScope = $useScope->enterExpressionAssign($use->var);
4819:
4820:	$inAssignRightSideVariableName = $context->getInAssignRightSideVariableName();
4821:	$inAssignRightSideExpr = $context->getInAssignRightSideExpr();
4822:	if (
4823:	$inAssignRightSideVariableName === $use->var->name
4824:	&& $inAssignRightSideExpr !== null
4825:	) {
4826:	$inAssignRightSideType = $scope->getType($inAssignRightSideExpr);
4827:	if ($inAssignRightSideType instanceof ClosureType) {
4828:	$variableType = $inAssignRightSideType;
4829:	} else {
4830:	$alreadyHasVariableType = $scope->hasVariableType($inAssignRightSideVariableName);
4831:	if ($alreadyHasVariableType->no()) {
4832:	$variableType = TypeCombinator::union(new NullType(), $inAssignRightSideType);
4833:	} else {
4834:	$variableType = TypeCombinator::union($scope->getVariableType($inAssignRightSideVariableName), $inAssignRightSideType);
4835:	}
4836:	}
4837:	$inAssignRightSideNativeType = $scope->getNativeType($inAssignRightSideExpr);
4838:	if ($inAssignRightSideNativeType instanceof ClosureType) {
4839:	$variableNativeType = $inAssignRightSideNativeType;
4840:	} else {
4841:	$alreadyHasVariableType = $scope->hasVariableType($inAssignRightSideVariableName);
4842:	if ($alreadyHasVariableType->no()) {
4843:	$variableNativeType = TypeCombinator::union(new NullType(), $inAssignRightSideNativeType);
4844:	} else {
4845:	$variableNativeType = TypeCombinator::union($scope->getVariableType($inAssignRightSideVariableName), $inAssignRightSideNativeType);
4846:	}
4847:	}
4848:	$scope = $scope->assignVariable($inAssignRightSideVariableName, $variableType, $variableNativeType, TrinaryLogic::createYes());
4849:	}
4850:	}
4851:	$this->processExprNode($stmt, $use->var, $useScope, $nodeCallback, $context);
4852:	if (!$use->byRef) {
4853:	continue;
4854:	}
4855:
4856:	$useScope = $useScope->exitExpressionAssign($use->var);
4857:	}
4858:
4859:	if ($expr->returnType !== null) {
4860:	$nodeCallback($expr->returnType, $scope);
4861:	}
4862:
4863:	$closureScope = $scope->enterAnonymousFunction($expr, $callableParameters);
4864:	$closureScope = $closureScope->processClosureScope($scope, null, $byRefUses);
4865:	$closureType = $closureScope->getAnonymousFunctionReflection();
4866:	if (!$closureType instanceof ClosureType) {
4867:	throw new ShouldNotHappenException();
4868:	}
4869:
4870:	$returnType = $closureType->getReturnType();
4871:	$isAlwaysTerminating = ($returnType instanceof NeverType && $returnType->isExplicit());
4872:
4873:	$nodeCallback(new InClosureNode($closureType, $expr), $closureScope);
4874:
4875:	$executionEnds = [];
4876:	$gatheredReturnStatements = [];
4877:	$gatheredYieldStatements = [];
4878:	$closureImpurePoints = [];
4879:	$invalidateExpressions = [];
4880:	$closureStmtsCallback = static function (Node $node, Scope $scope) use ($nodeCallback, &$executionEnds, &$gatheredReturnStatements, &$gatheredYieldStatements, &$closureScope, &$closureImpurePoints, &$invalidateExpressions): void {
4881:	$nodeCallback($node, $scope);
4882:	if ($scope->getAnonymousFunctionReflection() !== $closureScope->getAnonymousFunctionReflection()) {
4883:	return;
4884:	}
4885:	if ($node instanceof PropertyAssignNode) {
4886:	$closureImpurePoints[] = new ImpurePoint(
4887:	$scope,
4888:	$node,
4889:	'propertyAssign',
4890:	'property assignment',
4891:	true,
4892:	);
4893:	return;
4894:	}
4895:	if ($node instanceof ExecutionEndNode) {
4896:	$executionEnds[] = $node;
4897:	return;
4898:	}
4899:	if ($node instanceof InvalidateExprNode) {
4900:	$invalidateExpressions[] = $node;
4901:	return;
4902:	}
4903:	if ($node instanceof Expr\Yield_ \|\| $node instanceof Expr\YieldFrom) {
4904:	$gatheredYieldStatements[] = $node;
4905:	}
4906:	if (!$node instanceof Return_) {
4907:	return;
4908:	}
4909:
4910:	$gatheredReturnStatements[] = new ReturnStatement($scope, $node);
4911:	};
4912:
4913:	if (count($byRefUses) === 0) {
4914:	$statementResult = $this->processStmtNodesInternal($expr, $expr->stmts, $closureScope, $closureStmtsCallback, StatementContext::createTopLevel());
4915:	$publicStatementResult = $statementResult->toPublic();
4916:	$nodeCallback(new ClosureReturnStatementsNode(
4917:	$expr,
4918:	$gatheredReturnStatements,
4919:	$gatheredYieldStatements,
4920:	$publicStatementResult,
4921:	$executionEnds,
4922:	array_merge($publicStatementResult->getImpurePoints(), $closureImpurePoints),
4923:	), $closureScope);
4924:
4925:	return new ProcessClosureResult($scope, $statementResult->getThrowPoints(), $statementResult->getImpurePoints(), $invalidateExpressions, $isAlwaysTerminating);
4926:	}
4927:
4928:	$count = 0;
4929:	$closureResultScope = null;
4930:	do {
4931:	$prevScope = $closureScope;
4932:
4933:	$intermediaryClosureScopeResult = $this->processStmtNodesInternal($expr, $expr->stmts, $closureScope, static function (): void {
4934:	}, StatementContext::createTopLevel());
4935:	$intermediaryClosureScope = $intermediaryClosureScopeResult->getScope();
4936:	foreach ($intermediaryClosureScopeResult->getExitPoints() as $exitPoint) {
4937:	$intermediaryClosureScope = $intermediaryClosureScope->mergeWith($exitPoint->getScope());
4938:	}
4939:
4940:	if ($expr->getAttribute(ImmediatelyInvokedClosureVisitor::ATTRIBUTE_NAME) === true) {
4941:	$closureResultScope = $intermediaryClosureScope;
4942:	break;
4943:	}
4944:
4945:	$closureScope = $scope->enterAnonymousFunction($expr, $callableParameters);
4946:	$closureScope = $closureScope->processClosureScope($intermediaryClosureScope, $prevScope, $byRefUses);
4947:
4948:	if ($closureScope->equals($prevScope)) {
4949:	break;
4950:	}
4951:	if ($count >= self::GENERALIZE_AFTER_ITERATION) {
4952:	$closureScope = $prevScope->generalizeWith($closureScope);
4953:	}
4954:	$count++;
4955:	} while ($count < self::LOOP_SCOPE_ITERATIONS);
4956:
4957:	if ($closureResultScope === null) {
4958:	$closureResultScope = $closureScope;
4959:	}
4960:
4961:	$statementResult = $this->processStmtNodesInternal($expr, $expr->stmts, $closureScope, $closureStmtsCallback, StatementContext::createTopLevel());
4962:	$publicStatementResult = $statementResult->toPublic();
4963:	$nodeCallback(new ClosureReturnStatementsNode(
4964:	$expr,
4965:	$gatheredReturnStatements,
4966:	$gatheredYieldStatements,
4967:	$publicStatementResult,
4968:	$executionEnds,
4969:	array_merge($publicStatementResult->getImpurePoints(), $closureImpurePoints),
4970:	), $closureScope);
4971:
4972:	return new ProcessClosureResult($scope->processClosureScope($closureResultScope, null, $byRefUses), $statementResult->getThrowPoints(), $statementResult->getImpurePoints(), $invalidateExpressions, $isAlwaysTerminating);
4973:	}
4974:
4975:	/**
4976:	* @param InvalidateExprNode[] $invalidatedExpressions
4977:	* @param string[] $uses
4978:	*/
4979:	private function processImmediatelyCalledCallable(MutatingScope $scope, array $invalidatedExpressions, array $uses): MutatingScope
4980:	{
4981:	if ($scope->isInClass()) {
4982:	$uses[] = 'this';
4983:	}
4984:
4985:	$finder = new NodeFinder();
4986:	foreach ($invalidatedExpressions as $invalidateExpression) {
4987:	$found = false;
4988:	foreach ($uses as $use) {
4989:	$result = $finder->findFirst([$invalidateExpression->getExpr()], static fn ($node) => $node instanceof Variable && $node->name === $use);
4990:	if ($result === null) {
4991:	continue;
4992:	}
4993:
4994:	$found = true;
4995:	break;
4996:	}
4997:
4998:	if (!$found) {
4999:	continue;
5000:	}
5001:
5002:	$scope = $scope->invalidateExpression($invalidateExpression->getExpr(), true);
5003:	}
5004:
5005:	return $scope;
5006:	}
5007:
5008:	/**
5009:	* @param callable(Node $node, Scope $scope): void $nodeCallback
5010:	*/
5011:	private function processArrowFunctionNode(
5012:	Node\Stmt $stmt,
5013:	Expr\ArrowFunction $expr,
5014:	MutatingScope $scope,
5015:	callable $nodeCallback,
5016:	?Type $passedToType,
5017:	): ExpressionResult
5018:	{
5019:	foreach ($expr->params as $param) {
5020:	$this->processParamNode($stmt, $param, $scope, $nodeCallback);
5021:	}
5022:	if ($expr->returnType !== null) {
5023:	$nodeCallback($expr->returnType, $scope);
5024:	}
5025:
5026:	$arrowFunctionCallArgs = $expr->getAttribute(ArrowFunctionArgVisitor::ATTRIBUTE_NAME);
5027:	$arrowFunctionScope = $scope->enterArrowFunction($expr, $this->createCallableParameters(
5028:	$scope,
5029:	$expr,
5030:	$arrowFunctionCallArgs,
5031:	$passedToType,
5032:	));
5033:	$arrowFunctionType = $arrowFunctionScope->getAnonymousFunctionReflection();
5034:	if ($arrowFunctionType === null) {
5035:	throw new ShouldNotHappenException();
5036:	}
5037:	$nodeCallback(new InArrowFunctionNode($arrowFunctionType, $expr), $arrowFunctionScope);
5038:	$exprResult = $this->processExprNode($stmt, $expr->expr, $arrowFunctionScope, $nodeCallback, ExpressionContext::createTopLevel());
5039:
5040:	return new ExpressionResult($scope, false, $exprResult->isAlwaysTerminating(), $exprResult->getThrowPoints(), $exprResult->getImpurePoints());
5041:	}
5042:
5043:	/**
5044:	* @param Node\Arg[] $args
5045:	* @return ParameterReflection[]\|null
5046:	*/
5047:	public function createCallableParameters(Scope $scope, Expr $closureExpr, ?array $args, ?Type $passedToType): ?array
5048:	{
5049:	$callableParameters = null;
5050:	if ($args !== null) {
5051:	$closureType = $scope->getType($closureExpr);
5052:
5053:	if ($closureType->isCallable()->no()) {
5054:	return null;
5055:	}
5056:
5057:	$acceptors = $closureType->getCallableParametersAcceptors($scope);
5058:	if (count($acceptors) === 1) {
5059:	$callableParameters = $acceptors[0]->getParameters();
5060:
5061:	foreach ($callableParameters as $index => $callableParameter) {
5062:	if (!isset($args[$index])) {
5063:	continue;
5064:	}
5065:
5066:	$type = $scope->getType($args[$index]->value);
5067:	$callableParameters[$index] = new NativeParameterReflection(
5068:	$callableParameter->getName(),
5069:	$callableParameter->isOptional(),
5070:	$type,
5071:	$callableParameter->passedByReference(),
5072:	$callableParameter->isVariadic(),
5073:	$callableParameter->getDefaultValue(),
5074:	);
5075:	}
5076:	}
5077:	} elseif ($passedToType !== null && !$passedToType->isCallable()->no()) {
5078:	if ($passedToType instanceof UnionType) {
5079:	$passedToType = $passedToType->filterTypes(static fn (Type $innerType) => $innerType->isCallable()->yes());
5080:
5081:	if ($passedToType->isCallable()->no()) {
5082:	return null;
5083:	}
5084:	}
5085:
5086:	$acceptors = $passedToType->getCallableParametersAcceptors($scope);
5087:	if (count($acceptors) > 0) {
5088:	foreach ($acceptors as $acceptor) {
5089:	if ($callableParameters === null) {
5090:	$callableParameters = array_map(static fn (ParameterReflection $callableParameter) => new NativeParameterReflection(
5091:	$callableParameter->getName(),
5092:	$callableParameter->isOptional(),
5093:	$callableParameter->getType(),
5094:	$callableParameter->passedByReference(),
5095:	$callableParameter->isVariadic(),
5096:	$callableParameter->getDefaultValue(),
5097:	), $acceptor->getParameters());
5098:	continue;
5099:	}
5100:
5101:	$newParameters = [];
5102:	foreach ($acceptor->getParameters() as $i => $callableParameter) {
5103:	if (!array_key_exists($i, $callableParameters)) {
5104:	$newParameters[] = $callableParameter;
5105:	continue;
5106:	}
5107:
5108:	$newParameters[] = $callableParameters[$i]->union(new NativeParameterReflection(
5109:	$callableParameter->getName(),
5110:	$callableParameter->isOptional(),
5111:	$callableParameter->getType(),
5112:	$callableParameter->passedByReference(),
5113:	$callableParameter->isVariadic(),
5114:	$callableParameter->getDefaultValue(),
5115:	));
5116:	}
5117:
5118:	$callableParameters = $newParameters;
5119:	}
5120:	}
5121:	}
5122:
5123:	return $callableParameters;
5124:	}
5125:
5126:	/**
5127:	* @param callable(Node $node, Scope $scope): void $nodeCallback
5128:	*/
5129:	private function processParamNode(
5130:	Node\Stmt $stmt,
5131:	Node\Param $param,
5132:	MutatingScope $scope,
5133:	callable $nodeCallback,
5134:	): void
5135:	{
5136:	$this->processAttributeGroups($stmt, $param->attrGroups, $scope, $nodeCallback);
5137:	$nodeCallback($param, $scope);
5138:	if ($param->type !== null) {
5139:	$nodeCallback($param->type, $scope);
5140:	}
5141:	if ($param->default === null) {
5142:	return;
5143:	}
5144:
5145:	$this->processExprNode($stmt, $param->default, $scope, $nodeCallback, ExpressionContext::createDeep());
5146:	}
5147:
5148:	/**
5149:	* @param AttributeGroup[] $attrGroups
5150:	* @param callable(Node $node, Scope $scope): void $nodeCallback
5151:	*/
5152:	private function processAttributeGroups(
5153:	Node\Stmt $stmt,
5154:	array $attrGroups,
5155:	MutatingScope $scope,
5156:	callable $nodeCallback,
5157:	): void
5158:	{
5159:	foreach ($attrGroups as $attrGroup) {
5160:	foreach ($attrGroup->attrs as $attr) {
5161:	$className = $scope->resolveName($attr->name);
5162:	if ($this->reflectionProvider->hasClass($className)) {
5163:	$classReflection = $this->reflectionProvider->getClass($className);
5164:	if ($classReflection->hasConstructor()) {
5165:	$constructorReflection = $classReflection->getConstructor();
5166:	$parametersAcceptor = ParametersAcceptorSelector::selectFromArgs(
5167:	$scope,
5168:	$attr->args,
5169:	$constructorReflection->getVariants(),
5170:	$constructorReflection->getNamedArgumentsVariants(),
5171:	);
5172:	$expr = new New_($attr->name, $attr->args);
5173:	$expr = ArgumentsNormalizer::reorderNewArguments($parametersAcceptor, $expr) ?? $expr;
5174:	$this->processArgs($stmt, $constructorReflection, null, $parametersAcceptor, $expr, $scope, $nodeCallback, ExpressionContext::createDeep());
5175:	$nodeCallback($attr, $scope);
5176:	continue;
5177:	}
5178:	}
5179:
5180:	foreach ($attr->args as $arg) {
5181:	$this->processExprNode($stmt, $arg->value, $scope, $nodeCallback, ExpressionContext::createDeep());
5182:	$nodeCallback($arg, $scope);
5183:	}
5184:	$nodeCallback($attr, $scope);
5185:	}
5186:	$nodeCallback($attrGroup, $scope);
5187:	}
5188:	}
5189:
5190:	/**
5191:	* @param Node\PropertyHook[] $hooks
5192:	* @param callable(Node $node, Scope $scope): void $nodeCallback
5193:	*/
5194:	private function processPropertyHooks(
5195:	Node\Stmt $stmt,
5196:	Identifier\|Name\|ComplexType\|null $nativeTypeNode,
5197:	?Type $phpDocType,
5198:	string $propertyName,
5199:	array $hooks,
5200:	MutatingScope $scope,
5201:	callable $nodeCallback,
5202:	): void
5203:	{
5204:	if (!$scope->isInClass()) {
5205:	throw new ShouldNotHappenException();
5206:	}
5207:
5208:	$classReflection = $scope->getClassReflection();
5209:
5210:	foreach ($hooks as $hook) {
5211:	$nodeCallback($hook, $scope);
5212:	$this->processAttributeGroups($stmt, $hook->attrGroups, $scope, $nodeCallback);
5213:
5214:	[, $phpDocParameterTypes,,,, $phpDocThrowType,,,,,,,, $phpDocComment] = $this->getPhpDocs($scope, $hook);
5215:
5216:	foreach ($hook->params as $param) {
5217:	$this->processParamNode($stmt, $param, $scope, $nodeCallback);
5218:	}
5219:
5220:	[$isDeprecated, $deprecatedDescription] = $this->getDeprecatedAttribute($scope, $hook);
5221:
5222:	$hookScope = $scope->enterPropertyHook(
5223:	$hook,
5224:	$propertyName,
5225:	$nativeTypeNode,
5226:	$phpDocType,
5227:	$phpDocParameterTypes,
5228:	$phpDocThrowType,
5229:	$deprecatedDescription,
5230:	$isDeprecated,
5231:	$phpDocComment,
5232:	);
5233:	$hookReflection = $hookScope->getFunction();
5234:	if (!$hookReflection instanceof PhpMethodFromParserNodeReflection) {
5235:	throw new ShouldNotHappenException();
5236:	}
5237:
5238:	if (!$classReflection->hasNativeProperty($propertyName)) {
5239:	throw new ShouldNotHappenException();
5240:	}
5241:
5242:	$propertyReflection = $classReflection->getNativeProperty($propertyName);
5243:
5244:	$nodeCallback(new InPropertyHookNode(
5245:	$classReflection,
5246:	$hookReflection,
5247:	$propertyReflection,
5248:	$hook,
5249:	), $hookScope);
5250:
5251:	$stmts = $hook->getStmts();
5252:	if ($stmts === null) {
5253:	return;
5254:	}
5255:
5256:	if ($hook->body instanceof Expr) {
5257:	// enrich attributes of nodes in short hook body statements
5258:	$traverser = new NodeTraverser(
5259:	new LineAttributesVisitor($hook->body->getStartLine(), $hook->body->getEndLine()),
5260:	);
5261:	$traverser->traverse($stmts);
5262:	}
5263:
5264:	$gatheredReturnStatements = [];
5265:	$executionEnds = [];
5266:	$methodImpurePoints = [];
5267:	$statementResult = $this->processStmtNodesInternal(new PropertyHookStatementNode($hook), $stmts, $hookScope, static function (Node $node, Scope $scope) use ($nodeCallback, $hookScope, &$gatheredReturnStatements, &$executionEnds, &$hookImpurePoints): void {
5268:	$nodeCallback($node, $scope);
5269:	if ($scope->getFunction() !== $hookScope->getFunction()) {
5270:	return;
5271:	}
5272:	if ($scope->isInAnonymousFunction()) {
5273:	return;
5274:	}
5275:	if ($node instanceof PropertyAssignNode) {
5276:	$hookImpurePoints[] = new ImpurePoint(
5277:	$scope,
5278:	$node,
5279:	'propertyAssign',
5280:	'property assignment',
5281:	true,
5282:	);
5283:	return;
5284:	}
5285:	if ($node instanceof ExecutionEndNode) {
5286:	$executionEnds[] = $node;
5287:	return;
5288:	}
5289:	if (!$node instanceof Return_) {
5290:	return;
5291:	}
5292:
5293:	$gatheredReturnStatements[] = new ReturnStatement($scope, $node);
5294:	}, StatementContext::createTopLevel())->toPublic();
5295:
5296:	$nodeCallback(new PropertyHookReturnStatementsNode(
5297:	$hook,
5298:	$gatheredReturnStatements,
5299:	$statementResult,
5300:	$executionEnds,
5301:	array_merge($statementResult->getImpurePoints(), $methodImpurePoints),
5302:	$classReflection,
5303:	$hookReflection,
5304:	$propertyReflection,
5305:	), $hookScope);
5306:	}
5307:	}
5308:
5309:	/**
5310:	* @param FunctionReflection\|MethodReflection\|null $calleeReflection
5311:	*/
5312:	private function resolveClosureThisType(
5313:	?CallLike $call,
5314:	$calleeReflection,
5315:	ParameterReflection $parameter,
5316:	MutatingScope $scope,
5317:	): ?Type
5318:	{
5319:	if ($call instanceof FuncCall && $calleeReflection instanceof FunctionReflection) {
5320:	foreach ($this->parameterClosureThisExtensionProvider->getFunctionParameterClosureThisExtensions() as $extension) {
5321:	if (! $extension->isFunctionSupported($calleeReflection, $parameter)) {
5322:	continue;
5323:	}
5324:	$type = $extension->getClosureThisTypeFromFunctionCall($calleeReflection, $call, $parameter, $scope);
5325:	if ($type !== null) {
5326:	return $type;
5327:	}
5328:	}
5329:	} elseif ($call instanceof StaticCall && $calleeReflection instanceof MethodReflection) {
5330:	foreach ($this->parameterClosureThisExtensionProvider->getStaticMethodParameterClosureThisExtensions() as $extension) {
5331:	if (! $extension->isStaticMethodSupported($calleeReflection, $parameter)) {
5332:	continue;
5333:	}
5334:	$type = $extension->getClosureThisTypeFromStaticMethodCall($calleeReflection, $call, $parameter, $scope);
5335:	if ($type !== null) {
5336:	return $type;
5337:	}
5338:	}
5339:	} elseif ($call instanceof MethodCall && $calleeReflection instanceof MethodReflection) {
5340:	foreach ($this->parameterClosureThisExtensionProvider->getMethodParameterClosureThisExtensions() as $extension) {
5341:	if (! $extension->isMethodSupported($calleeReflection, $parameter)) {
5342:	continue;
5343:	}
5344:	$type = $extension->getClosureThisTypeFromMethodCall($calleeReflection, $call, $parameter, $scope);
5345:	if ($type !== null) {
5346:	return $type;
5347:	}
5348:	}
5349:	}
5350:
5351:	if ($parameter instanceof ExtendedParameterReflection) {
5352:	return $parameter->getClosureThisType();
5353:	}
5354:
5355:	return null;
5356:	}
5357:
5358:	/**
5359:	* @param MethodReflection\|FunctionReflection\|null $calleeReflection
5360:	* @param callable(Node $node, Scope $scope): void $nodeCallback
5361:	*/
5362:	private function processArgs(
5363:	Node\Stmt $stmt,
5364:	$calleeReflection,
5365:	?ExtendedMethodReflection $nakedMethodReflection,
5366:	?ParametersAcceptor $parametersAcceptor,
5367:	CallLike $callLike,
5368:	MutatingScope $scope,
5369:	callable $nodeCallback,
5370:	ExpressionContext $context,
5371:	?MutatingScope $closureBindScope = null,
5372:	): ExpressionResult
5373:	{
5374:	$args = $callLike->getArgs();
5375:
5376:	if ($parametersAcceptor !== null) {
5377:	$parameters = $parametersAcceptor->getParameters();
5378:	}
5379:
5380:	$hasYield = false;
5381:	$throwPoints = [];
5382:	$impurePoints = [];
5383:	$isAlwaysTerminating = false;
5384:	foreach ($args as $i => $arg) {
5385:	$assignByReference = false;
5386:	$parameter = null;
5387:	$parameterType = null;
5388:	$parameterNativeType = null;
5389:	if (isset($parameters) && $parametersAcceptor !== null) {
5390:	if (isset($parameters[$i])) {
5391:	$assignByReference = $parameters[$i]->passedByReference()->createsNewVariable();
5392:	$parameterType = $parameters[$i]->getType();
5393:
5394:	if ($parameters[$i] instanceof ExtendedParameterReflection) {
5395:	$parameterNativeType = $parameters[$i]->getNativeType();
5396:	}
5397:	$parameter = $parameters[$i];
5398:	} elseif (count($parameters) > 0 && $parametersAcceptor->isVariadic()) {
5399:	$lastParameter = array_last($parameters);
5400:	$assignByReference = $lastParameter->passedByReference()->createsNewVariable();
5401:	$parameterType = $lastParameter->getType();
5402:
5403:	if ($lastParameter instanceof ExtendedParameterReflection) {
5404:	$parameterNativeType = $lastParameter->getNativeType();
5405:	}
5406:	$parameter = $lastParameter;
5407:	}
5408:	}
5409:
5410:	$lookForUnset = false;
5411:	if ($assignByReference) {
5412:	$isBuiltin = false;
5413:	if ($calleeReflection instanceof FunctionReflection && $calleeReflection->isBuiltin()) {
5414:	$isBuiltin = true;
5415:	} elseif ($calleeReflection instanceof ExtendedMethodReflection && $calleeReflection->getDeclaringClass()->isBuiltin()) {
5416:	$isBuiltin = true;
5417:	}
5418:	if (
5419:	$isBuiltin
5420:	\|\| ($parameterNativeType === null \|\| !$parameterNativeType->isNull()->no())
5421:	) {
5422:	$scope = $this->lookForSetAllowedUndefinedExpressions($scope, $arg->value);
5423:	$lookForUnset = true;
5424:	}
5425:	}
5426:
5427:	if ($calleeReflection !== null) {
5428:	$scope = $scope->pushInFunctionCall($calleeReflection, $parameter);
5429:	}
5430:
5431:	$originalArg = $arg->getAttribute(ArgumentsNormalizer::ORIGINAL_ARG_ATTRIBUTE) ?? $arg;
5432:	$nodeCallback($originalArg, $scope);
5433:
5434:	$originalScope = $scope;
5435:	$scopeToPass = $scope;
5436:	if ($i === 0 && $closureBindScope !== null) {
5437:	$scopeToPass = $closureBindScope;
5438:	}
5439:
5440:	$parameterCallableType = null;
5441:	if ($parameterType !== null) {
5442:	$parameterCallableType = TypeUtils::findCallableType($parameterType);
5443:	}
5444:
5445:	if ($parameter instanceof ExtendedParameterReflection) {
5446:	$parameterCallImmediately = $parameter->isImmediatelyInvokedCallable();
5447:	if ($parameterCallImmediately->maybe()) {
5448:	$callCallbackImmediately = $parameterCallableType !== null && $calleeReflection instanceof FunctionReflection;
5449:	} else {
5450:	$callCallbackImmediately = $parameterCallImmediately->yes();
5451:	}
5452:	} else {
5453:	$callCallbackImmediately = $parameterCallableType !== null && $calleeReflection instanceof FunctionReflection;
5454:	}
5455:
5456:	if ($arg->value instanceof Expr\Closure) {
5457:	$restoreThisScope = null;
5458:	if (
5459:	$closureBindScope === null
5460:	&& $parameter instanceof ExtendedParameterReflection
5461:	&& !$arg->value->static
5462:	) {
5463:	$closureThisType = $this->resolveClosureThisType($callLike, $calleeReflection, $parameter, $scopeToPass);
5464:	if ($closureThisType !== null) {
5465:	$restoreThisScope = $scopeToPass;
5466:	$scopeToPass = $scopeToPass->assignVariable('this', $closureThisType, new ObjectWithoutClassType(), TrinaryLogic::createYes());
5467:	}
5468:	}
5469:
5470:	if ($parameter !== null) {
5471:	$overwritingParameterType = $this->getParameterTypeFromParameterClosureTypeExtension($callLike, $calleeReflection, $parameter, $scopeToPass);
5472:
5473:	if ($overwritingParameterType !== null) {
5474:	$parameterType = $overwritingParameterType;
5475:	}
5476:	}
5477:
5478:	$this->callNodeCallbackWithExpression($nodeCallback, $arg->value, $scopeToPass, $context);
5479:	$closureResult = $this->processClosureNode($stmt, $arg->value, $scopeToPass, $nodeCallback, $context, $parameterType ?? null);
5480:	if ($callCallbackImmediately) {
5481:	$throwPoints = array_merge($throwPoints, array_map(static fn (InternalThrowPoint $throwPoint) => $throwPoint->isExplicit() ? InternalThrowPoint::createExplicit($scope, $throwPoint->getType(), $arg->value, $throwPoint->canContainAnyThrowable()) : InternalThrowPoint::createImplicit($scope, $arg->value), $closureResult->getThrowPoints()));
5482:	$impurePoints = array_merge($impurePoints, $closureResult->getImpurePoints());
5483:	$isAlwaysTerminating = $isAlwaysTerminating \|\| $closureResult->isAlwaysTerminating();
5484:	}
5485:
5486:	$uses = [];
5487:	foreach ($arg->value->uses as $use) {
5488:	if (!is_string($use->var->name)) {
5489:	continue;
5490:	}
5491:
5492:	$uses[] = $use->var->name;
5493:	}
5494:
5495:	$scope = $closureResult->getScope();
5496:	$invalidateExpressions = $closureResult->getInvalidateExpressions();
5497:	if ($restoreThisScope !== null) {
5498:	$nodeFinder = new NodeFinder();
5499:	$cb = static fn ($expr) => $expr instanceof Variable && $expr->name === 'this';
5500:	foreach ($invalidateExpressions as $j => $invalidateExprNode) {
5501:	$foundThis = $nodeFinder->findFirst([$invalidateExprNode->getExpr()], $cb);
5502:	if ($foundThis === null) {
5503:	continue;
5504:	}
5505:
5506:	unset($invalidateExpressions[$j]);
5507:	}
5508:	$invalidateExpressions = array_values($invalidateExpressions);
5509:	$scope = $scope->restoreThis($restoreThisScope);
5510:	}
5511:
5512:	$scope = $this->processImmediatelyCalledCallable($scope, $invalidateExpressions, $uses);
5513:	} elseif ($arg->value instanceof Expr\ArrowFunction) {
5514:	if (
5515:	$closureBindScope === null
5516:	&& $parameter instanceof ExtendedParameterReflection
5517:	&& !$arg->value->static
5518:	) {
5519:	$closureThisType = $this->resolveClosureThisType($callLike, $calleeReflection, $parameter, $scopeToPass);
5520:	if ($closureThisType !== null) {
5521:	$scopeToPass = $scopeToPass->assignVariable('this', $closureThisType, new ObjectWithoutClassType(), TrinaryLogic::createYes());
5522:	}
5523:	}
5524:
5525:	if ($parameter !== null) {
5526:	$overwritingParameterType = $this->getParameterTypeFromParameterClosureTypeExtension($callLike, $calleeReflection, $parameter, $scopeToPass);
5527:
5528:	if ($overwritingParameterType !== null) {
5529:	$parameterType = $overwritingParameterType;
5530:	}
5531:	}
5532:
5533:	$this->callNodeCallbackWithExpression($nodeCallback, $arg->value, $scopeToPass, $context);
5534:	$arrowFunctionResult = $this->processArrowFunctionNode($stmt, $arg->value, $scopeToPass, $nodeCallback, $parameterType ?? null);
5535:	if ($callCallbackImmediately) {
5536:	$throwPoints = array_merge($throwPoints, array_map(static fn (InternalThrowPoint $throwPoint) => $throwPoint->isExplicit() ? InternalThrowPoint::createExplicit($scope, $throwPoint->getType(), $arg->value, $throwPoint->canContainAnyThrowable()) : InternalThrowPoint::createImplicit($scope, $arg->value), $arrowFunctionResult->getThrowPoints()));
5537:	$impurePoints = array_merge($impurePoints, $arrowFunctionResult->getImpurePoints());
5538:	$isAlwaysTerminating = $isAlwaysTerminating \|\| $arrowFunctionResult->isAlwaysTerminating();
5539:	}
5540:	} else {
5541:	$exprType = $scope->getType($arg->value);
5542:	$exprResult = $this->processExprNode($stmt, $arg->value, $scopeToPass, $nodeCallback, $context->enterDeep());
5543:	$throwPoints = array_merge($throwPoints, $exprResult->getThrowPoints());
5544:	$impurePoints = array_merge($impurePoints, $exprResult->getImpurePoints());
5545:	$isAlwaysTerminating = $isAlwaysTerminating \|\| $exprResult->isAlwaysTerminating();
5546:	$scope = $exprResult->getScope();
5547:	$hasYield = $hasYield \|\| $exprResult->hasYield();
5548:
5549:	if ($exprType->isCallable()->yes()) {
5550:	$acceptors = $exprType->getCallableParametersAcceptors($scope);
5551:	if (count($acceptors) === 1) {
5552:	$scope = $this->processImmediatelyCalledCallable($scope, $acceptors[0]->getInvalidateExpressions(), $acceptors[0]->getUsedVariables());
5553:	if ($callCallbackImmediately) {
5554:	$callableThrowPoints = array_map(static fn (SimpleThrowPoint $throwPoint) => $throwPoint->isExplicit() ? InternalThrowPoint::createExplicit($scope, $throwPoint->getType(), $arg->value, $throwPoint->canContainAnyThrowable()) : InternalThrowPoint::createImplicit($scope, $arg->value), $acceptors[0]->getThrowPoints());
5555:	if (!$this->implicitThrows) {
5556:	$callableThrowPoints = array_values(array_filter($callableThrowPoints, static fn (InternalThrowPoint $throwPoint) => $throwPoint->isExplicit()));
5557:	}
5558:	$throwPoints = array_merge($throwPoints, $callableThrowPoints);
5559:	$impurePoints = array_merge($impurePoints, array_map(static fn (SimpleImpurePoint $impurePoint) => new ImpurePoint($scope, $arg->value, $impurePoint->getIdentifier(), $impurePoint->getDescription(), $impurePoint->isCertain()), $acceptors[0]->getImpurePoints()));
5560:	$returnType = $acceptors[0]->getReturnType();
5561:	$isAlwaysTerminating = $isAlwaysTerminating \|\| ($returnType instanceof NeverType && $returnType->isExplicit());
5562:	}
5563:	}
5564:	}
5565:	}
5566:
5567:	if ($assignByReference && $lookForUnset) {
5568:	$scope = $this->lookForUnsetAllowedUndefinedExpressions($scope, $arg->value);
5569:	}
5570:
5571:	if ($calleeReflection !== null) {
5572:	$scope = $scope->popInFunctionCall();
5573:	}
5574:
5575:	if ($i !== 0 \|\| $closureBindScope === null) {
5576:	continue;
5577:	}
5578:
5579:	$scope = $scope->restoreOriginalScopeAfterClosureBind($originalScope);
5580:	}
5581:	foreach ($args as $i => $arg) {
5582:	if (!isset($parameters) \|\| $parametersAcceptor === null) {
5583:	continue;
5584:	}
5585:
5586:	$byRefType = new MixedType();
5587:	$assignByReference = false;
5588:	$currentParameter = null;
5589:	if (isset($parameters[$i])) {
5590:	$currentParameter = $parameters[$i];
5591:	} elseif (count($parameters) > 0 && $parametersAcceptor->isVariadic()) {
5592:	$currentParameter = array_last($parameters);
5593:	}
5594:
5595:	if ($currentParameter !== null) {
5596:	$assignByReference = $currentParameter->passedByReference()->createsNewVariable();
5597:	if ($assignByReference) {
5598:	if ($currentParameter instanceof ExtendedParameterReflection && $currentParameter->getOutType() !== null) {
5599:	$byRefType = $currentParameter->getOutType();
5600:	} elseif (
5601:	$calleeReflection instanceof MethodReflection
5602:	&& !$calleeReflection->getDeclaringClass()->isBuiltin()
5603:	) {
5604:	$byRefType = $currentParameter->getType();
5605:	} elseif (
5606:	$calleeReflection instanceof FunctionReflection
5607:	&& !$calleeReflection->isBuiltin()
5608:	) {
5609:	$byRefType = $currentParameter->getType();
5610:	}
5611:	}
5612:	}
5613:
5614:	if ($assignByReference) {
5615:	if ($currentParameter === null) {
5616:	throw new ShouldNotHappenException();
5617:	}
5618:
5619:	$argValue = $arg->value;
5620:	if (!$argValue instanceof Variable \|\| $argValue->name !== 'this') {
5621:	$paramOutType = $this->getParameterOutExtensionsType($callLike, $calleeReflection, $currentParameter, $scope);
5622:	if ($paramOutType !== null) {
5623:	$byRefType = $paramOutType;
5624:	}
5625:
5626:	$scope = $this->processVirtualAssign(
5627:	$scope,
5628:	$stmt,
5629:	$argValue,
5630:	new TypeExpr($byRefType),
5631:	$nodeCallback,
5632:	)->getScope();
5633:	}
5634:	} elseif ($calleeReflection !== null && $calleeReflection->hasSideEffects()->yes()) {
5635:	$argType = $scope->getType($arg->value);
5636:	if (!$argType->isObject()->no()) {
5637:	$nakedReturnType = null;
5638:	if ($nakedMethodReflection !== null) {
5639:	$nakedParametersAcceptor = ParametersAcceptorSelector::selectFromArgs(
5640:	$scope,
5641:	$args,
5642:	$nakedMethodReflection->getVariants(),
5643:	$nakedMethodReflection->getNamedArgumentsVariants(),
5644:	);
5645:	$nakedReturnType = $nakedParametersAcceptor->getReturnType();
5646:	}
5647:	if (
5648:	$nakedReturnType === null
5649:	\|\| !(new ThisType($nakedMethodReflection->getDeclaringClass()))->isSuperTypeOf($nakedReturnType)->yes()
5650:	\|\| $nakedMethodReflection->isPure()->no()
5651:	) {
5652:	$nodeCallback(new InvalidateExprNode($arg->value), $scope);
5653:	$scope = $scope->invalidateExpression($arg->value, true);
5654:	}
5655:	} elseif (!(new ResourceType())->isSuperTypeOf($argType)->no()) {
5656:	$nodeCallback(new InvalidateExprNode($arg->value), $scope);
5657:	$scope = $scope->invalidateExpression($arg->value, true);
5658:	}
5659:	}
5660:	}
5661:
5662:	return new ExpressionResult($scope, $hasYield, $isAlwaysTerminating, $throwPoints, $impurePoints);
5663:	}
5664:
5665:	/**
5666:	* @param MethodReflection\|FunctionReflection\|null $calleeReflection
5667:	*/
5668:	private function getParameterTypeFromParameterClosureTypeExtension(CallLike $callLike, $calleeReflection, ParameterReflection $parameter, MutatingScope $scope): ?Type
5669:	{
5670:	if ($callLike instanceof FuncCall && $calleeReflection instanceof FunctionReflection) {
5671:	foreach ($this->parameterClosureTypeExtensionProvider->getFunctionParameterClosureTypeExtensions() as $functionParameterClosureTypeExtension) {
5672:	if ($functionParameterClosureTypeExtension->isFunctionSupported($calleeReflection, $parameter)) {
5673:	return $functionParameterClosureTypeExtension->getTypeFromFunctionCall($calleeReflection, $callLike, $parameter, $scope);
5674:	}
5675:	}
5676:	} elseif ($calleeReflection instanceof MethodReflection) {
5677:	if ($callLike instanceof StaticCall) {
5678:	foreach ($this->parameterClosureTypeExtensionProvider->getStaticMethodParameterClosureTypeExtensions() as $staticMethodParameterClosureTypeExtension) {
5679:	if ($staticMethodParameterClosureTypeExtension->isStaticMethodSupported($calleeReflection, $parameter)) {
5680:	return $staticMethodParameterClosureTypeExtension->getTypeFromStaticMethodCall($calleeReflection, $callLike, $parameter, $scope);
5681:	}
5682:	}
5683:	} elseif ($callLike instanceof MethodCall) {
5684:	foreach ($this->parameterClosureTypeExtensionProvider->getMethodParameterClosureTypeExtensions() as $methodParameterClosureTypeExtension) {
5685:	if ($methodParameterClosureTypeExtension->isMethodSupported($calleeReflection, $parameter)) {
5686:	return $methodParameterClosureTypeExtension->getTypeFromMethodCall($calleeReflection, $callLike, $parameter, $scope);
5687:	}
5688:	}
5689:	}
5690:	}
5691:
5692:	return null;
5693:	}
5694:
5695:	/**
5696:	* @param MethodReflection\|FunctionReflection\|null $calleeReflection
5697:	*/
5698:	private function getParameterOutExtensionsType(CallLike $callLike, $calleeReflection, ParameterReflection $currentParameter, MutatingScope $scope): ?Type
5699:	{
5700:	$paramOutTypes = [];
5701:	if ($callLike instanceof FuncCall && $calleeReflection instanceof FunctionReflection) {
5702:	foreach ($this->parameterOutTypeExtensionProvider->getFunctionParameterOutTypeExtensions() as $functionParameterOutTypeExtension) {
5703:	if (!$functionParameterOutTypeExtension->isFunctionSupported($calleeReflection, $currentParameter)) {
5704:	continue;
5705:	}
5706:
5707:	$resolvedType = $functionParameterOutTypeExtension->getParameterOutTypeFromFunctionCall($calleeReflection, $callLike, $currentParameter, $scope);
5708:	if ($resolvedType === null) {
5709:	continue;
5710:	}
5711:	$paramOutTypes[] = $resolvedType;
5712:	}
5713:	} elseif ($callLike instanceof MethodCall && $calleeReflection instanceof MethodReflection) {
5714:	foreach ($this->parameterOutTypeExtensionProvider->getMethodParameterOutTypeExtensions() as $methodParameterOutTypeExtension) {
5715:	if (!$methodParameterOutTypeExtension->isMethodSupported($calleeReflection, $currentParameter)) {
5716:	continue;
5717:	}
5718:
5719:	$resolvedType = $methodParameterOutTypeExtension->getParameterOutTypeFromMethodCall($calleeReflection, $callLike, $currentParameter, $scope);
5720:	if ($resolvedType === null) {
5721:	continue;
5722:	}
5723:	$paramOutTypes[] = $resolvedType;
5724:	}
5725:	} elseif ($callLike instanceof StaticCall && $calleeReflection instanceof MethodReflection) {
5726:	foreach ($this->parameterOutTypeExtensionProvider->getStaticMethodParameterOutTypeExtensions() as $staticMethodParameterOutTypeExtension) {
5727:	if (!$staticMethodParameterOutTypeExtension->isStaticMethodSupported($calleeReflection, $currentParameter)) {
5728:	continue;
5729:	}
5730:
5731:	$resolvedType = $staticMethodParameterOutTypeExtension->getParameterOutTypeFromStaticMethodCall($calleeReflection, $callLike, $currentParameter, $scope);
5732:	if ($resolvedType === null) {
5733:	continue;
5734:	}
5735:	$paramOutTypes[] = $resolvedType;
5736:	}
5737:	}
5738:
5739:	if (count($paramOutTypes) === 1) {
5740:	return $paramOutTypes[0];
5741:	}
5742:
5743:	if (count($paramOutTypes) > 1) {
5744:	return TypeCombinator::union(...$paramOutTypes);
5745:	}
5746:
5747:	return null;
5748:	}
5749:
5750:	/**
5751:	* @param callable(Node $node, Scope $scope): void $nodeCallback
5752:	* @param Closure(MutatingScope $scope): ExpressionResult $processExprCallback
5753:	*/
5754:	private function processAssignVar(
5755:	MutatingScope $scope,
5756:	Node\Stmt $stmt,
5757:	Expr $var,
5758:	Expr $assignedExpr,
5759:	callable $nodeCallback,
5760:	ExpressionContext $context,
5761:	Closure $processExprCallback,
5762:	bool $enterExpressionAssign,
5763:	): ExpressionResult
5764:	{
5765:	$nodeCallback($var, $enterExpressionAssign ? $scope->enterExpressionAssign($var) : $scope);
5766:	$hasYield = false;
5767:	$throwPoints = [];
5768:	$impurePoints = [];
5769:	$isAlwaysTerminating = false;
5770:	$isAssignOp = $assignedExpr instanceof Expr\AssignOp && !$enterExpressionAssign;
5771:	if ($var instanceof Variable && is_string($var->name)) {
5772:	$result = $processExprCallback($scope);
5773:	$hasYield = $result->hasYield();
5774:	$throwPoints = $result->getThrowPoints();
5775:	$impurePoints = $result->getImpurePoints();
5776:	$isAlwaysTerminating = $result->isAlwaysTerminating();
5777:	if (in_array($var->name, Scope::SUPERGLOBAL_VARIABLES, true)) {
5778:	$impurePoints[] = new ImpurePoint($scope, $var, 'superglobal', 'assign to superglobal variable', true);
5779:	}
5780:	$assignedExpr = $this->unwrapAssign($assignedExpr);
5781:	$type = $scope->getType($assignedExpr);
5782:
5783:	$conditionalExpressions = [];
5784:	if ($assignedExpr instanceof Ternary) {
5785:	$if = $assignedExpr->if;
5786:	if ($if === null) {
5787:	$if = $assignedExpr->cond;
5788:	}
5789:	$condScope = $this->processExprNode($stmt, $assignedExpr->cond, $scope, static function (): void {
5790:	}, ExpressionContext::createDeep())->getScope();
5791:	$truthySpecifiedTypes = $this->typeSpecifier->specifyTypesInCondition($condScope, $assignedExpr->cond, TypeSpecifierContext::createTruthy());
5792:	$falseySpecifiedTypes = $this->typeSpecifier->specifyTypesInCondition($condScope, $assignedExpr->cond, TypeSpecifierContext::createFalsey());
5793:	$truthyScope = $condScope->filterBySpecifiedTypes($truthySpecifiedTypes);
5794:	$falsyScope = $condScope->filterBySpecifiedTypes($falseySpecifiedTypes);
5795:	$truthyType = $truthyScope->getType($if);
5796:	$falseyType = $falsyScope->getType($assignedExpr->else);
5797:
5798:	if (
5799:	$truthyType->isSuperTypeOf($falseyType)->no()
5800:	&& $falseyType->isSuperTypeOf($truthyType)->no()
5801:	) {
5802:	$conditionalExpressions = $this->processSureTypesForConditionalExpressionsAfterAssign($condScope, $var->name, $conditionalExpressions, $truthySpecifiedTypes, $truthyType);
5803:	$conditionalExpressions = $this->processSureNotTypesForConditionalExpressionsAfterAssign($condScope, $var->name, $conditionalExpressions, $truthySpecifiedTypes, $truthyType);
5804:	$conditionalExpressions = $this->processSureTypesForConditionalExpressionsAfterAssign($condScope, $var->name, $conditionalExpressions, $falseySpecifiedTypes, $falseyType);
5805:	$conditionalExpressions = $this->processSureNotTypesForConditionalExpressionsAfterAssign($condScope, $var->name, $conditionalExpressions, $falseySpecifiedTypes, $falseyType);
5806:	}
5807:	}
5808:
5809:	$scopeBeforeAssignEval = $scope;
5810:	$scope = $result->getScope();
5811:	$truthySpecifiedTypes = $this->typeSpecifier->specifyTypesInCondition($scope, $assignedExpr, TypeSpecifierContext::createTruthy());
5812:	$falseySpecifiedTypes = $this->typeSpecifier->specifyTypesInCondition($scope, $assignedExpr, TypeSpecifierContext::createFalsey());
5813:
5814:	$truthyType = TypeCombinator::removeFalsey($type);
5815:	$falseyType = TypeCombinator::intersect($type, StaticTypeFactory::falsey());
5816:
5817:	$conditionalExpressions = $this->processSureTypesForConditionalExpressionsAfterAssign($scope, $var->name, $conditionalExpressions, $truthySpecifiedTypes, $truthyType);
5818:	$conditionalExpressions = $this->processSureNotTypesForConditionalExpressionsAfterAssign($scope, $var->name, $conditionalExpressions, $truthySpecifiedTypes, $truthyType);
5819:	$conditionalExpressions = $this->processSureTypesForConditionalExpressionsAfterAssign($scope, $var->name, $conditionalExpressions, $falseySpecifiedTypes, $falseyType);
5820:	$conditionalExpressions = $this->processSureNotTypesForConditionalExpressionsAfterAssign($scope, $var->name, $conditionalExpressions, $falseySpecifiedTypes, $falseyType);
5821:
5822:	$nodeCallback(new VariableAssignNode($var, $assignedExpr), $scopeBeforeAssignEval);
5823:	$scope = $scope->assignVariable($var->name, $type, $scope->getNativeType($assignedExpr), TrinaryLogic::createYes());
5824:	foreach ($conditionalExpressions as $exprString => $holders) {
5825:	$scope = $scope->addConditionalExpressions($exprString, $holders);
5826:	}
5827:	} elseif ($var instanceof ArrayDimFetch) {
5828:	$dimFetchStack = [];
5829:	$originalVar = $var;
5830:	$assignedPropertyExpr = $assignedExpr;
5831:	while ($var instanceof ArrayDimFetch) {
5832:	$varForSetOffsetValue = $var->var;
5833:	if ($varForSetOffsetValue instanceof PropertyFetch \|\| $varForSetOffsetValue instanceof StaticPropertyFetch) {
5834:	$varForSetOffsetValue = new OriginalPropertyTypeExpr($varForSetOffsetValue);
5835:	}
5836:
5837:	if (
5838:	$var === $originalVar
5839:	&& $var->dim !== null
5840:	&& $scope->hasExpressionType($var)->yes()
5841:	) {
5842:	$assignedPropertyExpr = new SetExistingOffsetValueTypeExpr(
5843:	$varForSetOffsetValue,
5844:	$var->dim,
5845:	$assignedPropertyExpr,
5846:	);
5847:	} else {
5848:	$assignedPropertyExpr = new SetOffsetValueTypeExpr(
5849:	$varForSetOffsetValue,
5850:	$var->dim,
5851:	$assignedPropertyExpr,
5852:	);
5853:	}
5854:	$dimFetchStack[] = $var;
5855:	$var = $var->var;
5856:	}
5857:
5858:	// 1. eval root expr
5859:	if ($enterExpressionAssign) {
5860:	$scope = $scope->enterExpressionAssign($var);
5861:	}
5862:	$result = $this->processExprNode($stmt, $var, $scope, $nodeCallback, $context->enterDeep());
5863:	$hasYield = $result->hasYield();
5864:	$throwPoints = $result->getThrowPoints();
5865:	$impurePoints = $result->getImpurePoints();
5866:	$isAlwaysTerminating = $result->isAlwaysTerminating();
5867:	$scope = $result->getScope();
5868:	if ($enterExpressionAssign) {
5869:	$scope = $scope->exitExpressionAssign($var);
5870:	}
5871:
5872:	// 2. eval dimensions
5873:	$offsetTypes = [];
5874:	$offsetNativeTypes = [];
5875:	$dimFetchStack = array_reverse($dimFetchStack);
5876:	$lastDimKey = array_key_last($dimFetchStack);
5877:	foreach ($dimFetchStack as $key => $dimFetch) {
5878:	$dimExpr = $dimFetch->dim;
5879:
5880:	// Callback was already called for last dim at the beginning of the method.
5881:	if ($key !== $lastDimKey) {
5882:	$nodeCallback($dimFetch, $enterExpressionAssign ? $scope->enterExpressionAssign($dimFetch) : $scope);
5883:	}
5884:
5885:	if ($dimExpr === null) {
5886:	$offsetTypes[] = [null, $dimFetch];
5887:	$offsetNativeTypes[] = [null, $dimFetch];
5888:
5889:	} else {
5890:	$offsetTypes[] = [$scope->getType($dimExpr), $dimFetch];
5891:	$offsetNativeTypes[] = [$scope->getNativeType($dimExpr), $dimFetch];
5892:
5893:	if ($enterExpressionAssign) {
5894:	$scope->enterExpressionAssign($dimExpr);
5895:	}
5896:	$result = $this->processExprNode($stmt, $dimExpr, $scope, $nodeCallback, $context->enterDeep());
5897:	$hasYield = $hasYield \|\| $result->hasYield();
5898:	$throwPoints = array_merge($throwPoints, $result->getThrowPoints());
5899:	$scope = $result->getScope();
5900:
5901:	if ($enterExpressionAssign) {
5902:	$scope = $scope->exitExpressionAssign($dimExpr);
5903:	}
5904:	}
5905:	}
5906:
5907:	$valueToWrite = $scope->getType($assignedExpr);
5908:	$nativeValueToWrite = $scope->getNativeType($assignedExpr);
5909:	$scopeBeforeAssignEval = $scope;
5910:
5911:	// 3. eval assigned expr
5912:	$result = $processExprCallback($scope);
5913:	$hasYield = $hasYield \|\| $result->hasYield();
5914:	$throwPoints = array_merge($throwPoints, $result->getThrowPoints());
5915:	$impurePoints = array_merge($impurePoints, $result->getImpurePoints());
5916:	$isAlwaysTerminating = $isAlwaysTerminating \|\| $result->isAlwaysTerminating();
5917:	$scope = $result->getScope();
5918:
5919:	$varType = $scope->getType($var);
5920:	$varNativeType = $scope->getNativeType($var);
5921:
5922:	// 4. compose types
5923:	$isImplicitArrayCreation = $this->isImplicitArrayCreation($dimFetchStack, $scope);
5924:	if ($isImplicitArrayCreation->yes()) {
5925:	$varType = new ConstantArrayType([], []);
5926:	$varNativeType = new ConstantArrayType([], []);
5927:	}
5928:	$offsetValueType = $varType;
5929:	$offsetNativeValueType = $varNativeType;
5930:
5931:	[$valueToWrite, $additionalExpressions] = $this->produceArrayDimFetchAssignValueToWrite($dimFetchStack, $offsetTypes, $offsetValueType, $valueToWrite, $scope);
5932:
5933:	if (!$offsetValueType->equals($offsetNativeValueType) \|\| !$valueToWrite->equals($nativeValueToWrite)) {
5934:	[$nativeValueToWrite, $additionalNativeExpressions] = $this->produceArrayDimFetchAssignValueToWrite($dimFetchStack, $offsetNativeTypes, $offsetNativeValueType, $nativeValueToWrite, $scope);
5935:	} else {
5936:	$rewritten = false;
5937:	foreach ($offsetTypes as $i => [$offsetType]) {
5938:	[$offsetNativeType] = $offsetNativeTypes[$i];
5939:
5940:	if ($offsetType === null) {
5941:	if ($offsetNativeType !== null) {
5942:	throw new ShouldNotHappenException();
5943:	}
5944:
5945:	continue;
5946:	} elseif ($offsetNativeType === null) {
5947:	throw new ShouldNotHappenException();
5948:	}
5949:	if ($offsetType->equals($offsetNativeType)) {
5950:	continue;
5951:	}
5952:
5953:	[$nativeValueToWrite] = $this->produceArrayDimFetchAssignValueToWrite($dimFetchStack, $offsetNativeTypes, $offsetNativeValueType, $nativeValueToWrite, $scope);
5954:	$rewritten = true;
5955:	break;
5956:	}
5957:
5958:	if (!$rewritten) {
5959:	$nativeValueToWrite = $valueToWrite;
5960:	}
5961:	}
5962:
5963:	if ($varType->isArray()->yes() \|\| !(new ObjectType(ArrayAccess::class))->isSuperTypeOf($varType)->yes()) {
5964:	if ($var instanceof Variable && is_string($var->name)) {
5965:	$nodeCallback(new VariableAssignNode($var, $assignedPropertyExpr), $scopeBeforeAssignEval);
5966:	$scope = $scope->assignVariable($var->name, $valueToWrite, $nativeValueToWrite, TrinaryLogic::createYes());
5967:	} else {
5968:	if ($var instanceof PropertyFetch \|\| $var instanceof StaticPropertyFetch) {
5969:	$nodeCallback(new PropertyAssignNode($var, $assignedPropertyExpr, $isAssignOp), $scopeBeforeAssignEval);
5970:	if ($var instanceof PropertyFetch && $var->name instanceof Node\Identifier && !$isAssignOp) {
5971:	$scope = $scope->assignInitializedProperty($scope->getType($var->var), $var->name->toString());
5972:	}
5973:	}
5974:	$scope = $scope->assignExpression(
5975:	$var,
5976:	$valueToWrite,
5977:	$nativeValueToWrite,
5978:	);
5979:	}
5980:	} else {
5981:	if ($var instanceof Variable) {
5982:	$nodeCallback(new VariableAssignNode($var, $assignedPropertyExpr), $scopeBeforeAssignEval);
5983:	} elseif ($var instanceof PropertyFetch \|\| $var instanceof StaticPropertyFetch) {
5984:	$nodeCallback(new PropertyAssignNode($var, $assignedPropertyExpr, $isAssignOp), $scopeBeforeAssignEval);
5985:	if ($var instanceof PropertyFetch && $var->name instanceof Node\Identifier && !$isAssignOp) {
5986:	$scope = $scope->assignInitializedProperty($scope->getType($var->var), $var->name->toString());
5987:	}
5988:	}
5989:	}
5990:
5991:	foreach ($additionalExpressions as $k => $additionalExpression) {
5992:	[$expr, $type] = $additionalExpression;
5993:	$nativeType = $type;
5994:	if (isset($additionalNativeExpressions[$k])) {
5995:	[, $nativeType] = $additionalNativeExpressions[$k];
5996:	}
5997:
5998:	$scope = $scope->assignExpression($expr, $type, $nativeType);
5999:	}
6000:
6001:	if (!$varType->isArray()->yes() && !(new ObjectType(ArrayAccess::class))->isSuperTypeOf($varType)->no()) {
6002:	$throwPoints = array_merge($throwPoints, $this->processExprNode(
6003:	$stmt,
6004:	new MethodCall($var, 'offsetSet'),
6005:	$scope,
6006:	static function (): void {
6007:	},
6008:	$context,
6009:	)->getThrowPoints());
6010:	}
6011:	} elseif ($var instanceof PropertyFetch) {
6012:	$objectResult = $this->processExprNode($stmt, $var->var, $scope, $nodeCallback, $context);
6013:	$hasYield = $objectResult->hasYield();
6014:	$throwPoints = $objectResult->getThrowPoints();
6015:	$impurePoints = $objectResult->getImpurePoints();
6016:	$isAlwaysTerminating = $objectResult->isAlwaysTerminating();
6017:	$scope = $objectResult->getScope();
6018:
6019:	$propertyName = null;
6020:	if ($var->name instanceof Node\Identifier) {
6021:	$propertyName = $var->name->name;
6022:	} else {
6023:	$propertyNameResult = $this->processExprNode($stmt, $var->name, $scope, $nodeCallback, $context);
6024:	$hasYield = $hasYield \|\| $propertyNameResult->hasYield();
6025:	$throwPoints = array_merge($throwPoints, $propertyNameResult->getThrowPoints());
6026:	$impurePoints = array_merge($impurePoints, $propertyNameResult->getImpurePoints());
6027:	$isAlwaysTerminating = $isAlwaysTerminating \|\| $propertyNameResult->isAlwaysTerminating();
6028:	$scope = $propertyNameResult->getScope();
6029:	}
6030:
6031:	$scopeBeforeAssignEval = $scope;
6032:	$result = $processExprCallback($scope);
6033:	$hasYield = $hasYield \|\| $result->hasYield();
6034:	$throwPoints = array_merge($throwPoints, $result->getThrowPoints());
6035:	$impurePoints = array_merge($impurePoints, $result->getImpurePoints());
6036:	$isAlwaysTerminating = $isAlwaysTerminating \|\| $result->isAlwaysTerminating();
6037:	$scope = $result->getScope();
6038:
6039:	if ($var->name instanceof Expr && $this->phpVersion->supportsPropertyHooks()) {
6040:	$throwPoints[] = InternalThrowPoint::createImplicit($scope, $var);
6041:	}
6042:
6043:	$propertyHolderType = $scope->getType($var->var);
6044:	if ($propertyName !== null && $propertyHolderType->hasInstanceProperty($propertyName)->yes()) {
6045:	$propertyReflection = $propertyHolderType->getInstanceProperty($propertyName, $scope);
6046:	$assignedExprType = $scope->getType($assignedExpr);
6047:	$nodeCallback(new PropertyAssignNode($var, $assignedExpr, $isAssignOp), $scopeBeforeAssignEval);
6048:	if ($propertyReflection->canChangeTypeAfterAssignment()) {
6049:	if ($propertyReflection->hasNativeType()) {
6050:	$propertyNativeType = $propertyReflection->getNativeType();
6051:
6052:	$assignedTypeIsCompatible = $propertyNativeType->isSuperTypeOf($assignedExprType)->yes();
6053:	if (!$assignedTypeIsCompatible) {
6054:	foreach (TypeUtils::flattenTypes($propertyNativeType) as $type) {
6055:	if ($type->isSuperTypeOf($assignedExprType)->yes()) {
6056:	$assignedTypeIsCompatible = true;
6057:	break;
6058:	}
6059:	}
6060:	}
6061:
6062:	if ($assignedTypeIsCompatible) {
6063:	$scope = $scope->assignExpression($var, $assignedExprType, $scope->getNativeType($assignedExpr));
6064:	} else {
6065:	$scope = $scope->assignExpression(
6066:	$var,
6067:	TypeCombinator::intersect($assignedExprType->toCoercedArgumentType($scope->isDeclareStrictTypes()), $propertyNativeType),
6068:	TypeCombinator::intersect($scope->getNativeType($assignedExpr)->toCoercedArgumentType($scope->isDeclareStrictTypes()), $propertyNativeType),
6069:	);
6070:	}
6071:	} else {
6072:	$scope = $scope->assignExpression($var, $assignedExprType, $scope->getNativeType($assignedExpr));
6073:	}
6074:	}
6075:	$declaringClass = $propertyReflection->getDeclaringClass();
6076:	if ($declaringClass->hasNativeProperty($propertyName)) {
6077:	$nativeProperty = $declaringClass->getNativeProperty($propertyName);
6078:	if (
6079:	!$nativeProperty->getNativeType()->accepts($assignedExprType, true)->yes()
6080:	) {
6081:	$throwPoints[] = InternalThrowPoint::createExplicit($scope, new ObjectType(TypeError::class), $assignedExpr, false);
6082:	}
6083:	if ($this->phpVersion->supportsPropertyHooks()) {
6084:	$throwPoints = array_merge($throwPoints, $this->getPropertyAssignThrowPointsFromSetHook($scope, $var, $nativeProperty));
6085:	}
6086:	if ($enterExpressionAssign) {
6087:	$scope = $scope->assignInitializedProperty($propertyHolderType, $propertyName);
6088:	}
6089:	}
6090:	} else {
6091:	// fallback
6092:	$assignedExprType = $scope->getType($assignedExpr);
6093:	$nodeCallback(new PropertyAssignNode($var, $assignedExpr, $isAssignOp), $scopeBeforeAssignEval);
6094:	$scope = $scope->assignExpression($var, $assignedExprType, $scope->getNativeType($assignedExpr));
6095:	// simulate dynamic property assign by __set to get throw points
6096:	if (!$propertyHolderType->hasMethod('__set')->no()) {
6097:	$throwPoints = array_merge($throwPoints, $this->processExprNode(
6098:	$stmt,
6099:	new MethodCall($var->var, '__set'),
6100:	$scope,
6101:	static function (): void {
6102:	},
6103:	$context,
6104:	)->getThrowPoints());
6105:	}
6106:	}
6107:
6108:	} elseif ($var instanceof Expr\StaticPropertyFetch) {
6109:	if ($var->class instanceof Node\Name) {
6110:	$propertyHolderType = $scope->resolveTypeByName($var->class);
6111:	} else {
6112:	$this->processExprNode($stmt, $var->class, $scope, $nodeCallback, $context);
6113:	$propertyHolderType = $scope->getType($var->class);
6114:	}
6115:
6116:	$propertyName = null;
6117:	if ($var->name instanceof Node\Identifier) {
6118:	$propertyName = $var->name->name;
6119:	} else {
6120:	$propertyNameResult = $this->processExprNode($stmt, $var->name, $scope, $nodeCallback, $context);
6121:	$hasYield = $propertyNameResult->hasYield();
6122:	$throwPoints = $propertyNameResult->getThrowPoints();
6123:	$impurePoints = $propertyNameResult->getImpurePoints();
6124:	$isAlwaysTerminating = $propertyNameResult->isAlwaysTerminating();
6125:	$scope = $propertyNameResult->getScope();
6126:	}
6127:
6128:	$scopeBeforeAssignEval = $scope;
6129:	$result = $processExprCallback($scope);
6130:	$hasYield = $hasYield \|\| $result->hasYield();
6131:	$throwPoints = array_merge($throwPoints, $result->getThrowPoints());
6132:	$impurePoints = array_merge($impurePoints, $result->getImpurePoints());
6133:	$isAlwaysTerminating = $isAlwaysTerminating \|\| $result->isAlwaysTerminating();
6134:	$scope = $result->getScope();
6135:
6136:	if ($propertyName !== null) {
6137:	$propertyReflection = $scope->getStaticPropertyReflection($propertyHolderType, $propertyName);
6138:	$assignedExprType = $scope->getType($assignedExpr);
6139:	$nodeCallback(new PropertyAssignNode($var, $assignedExpr, $isAssignOp), $scopeBeforeAssignEval);
6140:	if ($propertyReflection !== null && $propertyReflection->canChangeTypeAfterAssignment()) {
6141:	if ($propertyReflection->hasNativeType()) {
6142:	$propertyNativeType = $propertyReflection->getNativeType();
6143:	$assignedTypeIsCompatible = $propertyNativeType->isSuperTypeOf($assignedExprType)->yes();
6144:
6145:	if (!$assignedTypeIsCompatible) {
6146:	foreach (TypeUtils::flattenTypes($propertyNativeType) as $type) {
6147:	if ($type->isSuperTypeOf($assignedExprType)->yes()) {
6148:	$assignedTypeIsCompatible = true;
6149:	break;
6150:	}
6151:	}
6152:	}
6153:
6154:	if ($assignedTypeIsCompatible) {
6155:	$scope = $scope->assignExpression($var, $assignedExprType, $scope->getNativeType($assignedExpr));
6156:	} else {
6157:	$scope = $scope->assignExpression(
6158:	$var,
6159:	TypeCombinator::intersect($assignedExprType->toCoercedArgumentType($scope->isDeclareStrictTypes()), $propertyNativeType),
6160:	TypeCombinator::intersect($scope->getNativeType($assignedExpr)->toCoercedArgumentType($scope->isDeclareStrictTypes()), $propertyNativeType),
6161:	);
6162:	}
6163:	} else {
6164:	$scope = $scope->assignExpression($var, $assignedExprType, $scope->getNativeType($assignedExpr));
6165:	}
6166:	}
6167:	} else {
6168:	// fallback
6169:	$assignedExprType = $scope->getType($assignedExpr);
6170:	$nodeCallback(new PropertyAssignNode($var, $assignedExpr, $isAssignOp), $scopeBeforeAssignEval);
6171:	$scope = $scope->assignExpression($var, $assignedExprType, $scope->getNativeType($assignedExpr));
6172:	}
6173:	} elseif ($var instanceof List_) {
6174:	$result = $processExprCallback($scope);
6175:	$hasYield = $result->hasYield();
6176:	$throwPoints = array_merge($throwPoints, $result->getThrowPoints());
6177:	$impurePoints = array_merge($impurePoints, $result->getImpurePoints());
6178:	$isAlwaysTerminating = $result->isAlwaysTerminating();
6179:	$scope = $result->getScope();
6180:	foreach ($var->items as $i => $arrayItem) {
6181:	if ($arrayItem === null) {
6182:	continue;
6183:	}
6184:
6185:	$itemScope = $scope;
6186:	if ($enterExpressionAssign) {
6187:	$itemScope = $itemScope->enterExpressionAssign($arrayItem->value);
6188:	}
6189:	$itemScope = $this->lookForSetAllowedUndefinedExpressions($itemScope, $arrayItem->value);
6190:	$nodeCallback($arrayItem, $itemScope);
6191:	if ($arrayItem->key !== null) {
6192:	$keyResult = $this->processExprNode($stmt, $arrayItem->key, $itemScope, $nodeCallback, $context->enterDeep());
6193:	$hasYield = $hasYield \|\| $keyResult->hasYield();
6194:	$throwPoints = array_merge($throwPoints, $keyResult->getThrowPoints());
6195:	$impurePoints = array_merge($impurePoints, $keyResult->getImpurePoints());
6196:	$isAlwaysTerminating = $isAlwaysTerminating \|\| $keyResult->isAlwaysTerminating();
6197:	$itemScope = $keyResult->getScope();
6198:	}
6199:
6200:	$valueResult = $this->processExprNode($stmt, $arrayItem->value, $itemScope, $nodeCallback, $context->enterDeep());
6201:	$hasYield = $hasYield \|\| $valueResult->hasYield();
6202:	$throwPoints = array_merge($throwPoints, $valueResult->getThrowPoints());
6203:	$impurePoints = array_merge($impurePoints, $valueResult->getImpurePoints());
6204:	$isAlwaysTerminating = $isAlwaysTerminating \|\| $valueResult->isAlwaysTerminating();
6205:
6206:	if ($arrayItem->key === null) {
6207:	$dimExpr = new Node\Scalar\Int_($i);
6208:	} else {
6209:	$dimExpr = $arrayItem->key;
6210:	}
6211:	$result = $this->processAssignVar(
6212:	$scope,
6213:	$stmt,
6214:	$arrayItem->value,
6215:	new GetOffsetValueTypeExpr($assignedExpr, $dimExpr),
6216:	$nodeCallback,
6217:	$context,
6218:	static fn (MutatingScope $scope): ExpressionResult => new ExpressionResult($scope, false, false, [], []),
6219:	$enterExpressionAssign,
6220:	);
6221:	$scope = $result->getScope();
6222:	$hasYield = $hasYield \|\| $result->hasYield();
6223:	$throwPoints = array_merge($throwPoints, $result->getThrowPoints());
6224:	$impurePoints = array_merge($impurePoints, $result->getImpurePoints());
6225:	$isAlwaysTerminating = $isAlwaysTerminating \|\| $result->isAlwaysTerminating();
6226:	}
6227:	} elseif ($var instanceof ExistingArrayDimFetch) {
6228:	$dimFetchStack = [];
6229:	$assignedPropertyExpr = $assignedExpr;
6230:	while ($var instanceof ExistingArrayDimFetch) {
6231:	$varForSetOffsetValue = $var->getVar();
6232:	if ($varForSetOffsetValue instanceof PropertyFetch \|\| $varForSetOffsetValue instanceof StaticPropertyFetch) {
6233:	$varForSetOffsetValue = new OriginalPropertyTypeExpr($varForSetOffsetValue);
6234:	}
6235:	$assignedPropertyExpr = new SetExistingOffsetValueTypeExpr(
6236:	$varForSetOffsetValue,
6237:	$var->getDim(),
6238:	$assignedPropertyExpr,
6239:	);
6240:	$dimFetchStack[] = $var;
6241:	$var = $var->getVar();
6242:	}
6243:
6244:	$offsetTypes = [];
6245:	$offsetNativeTypes = [];
6246:	foreach (array_reverse($dimFetchStack) as $dimFetch) {
6247:	$dimExpr = $dimFetch->getDim();
6248:	$offsetTypes[] = [$scope->getType($dimExpr), $dimFetch];
6249:	$offsetNativeTypes[] = [$scope->getNativeType($dimExpr), $dimFetch];
6250:	}
6251:
6252:	$valueToWrite = $scope->getType($assignedExpr);
6253:	$nativeValueToWrite = $scope->getNativeType($assignedExpr);
6254:	$varType = $scope->getType($var);
6255:	$varNativeType = $scope->getNativeType($var);
6256:
6257:	$offsetValueType = $varType;
6258:	$offsetNativeValueType = $varNativeType;
6259:	$offsetValueTypeStack = [$offsetValueType];
6260:	$offsetValueNativeTypeStack = [$offsetNativeValueType];
6261:	foreach (array_slice($offsetTypes, 0, -1) as [$offsetType]) {
6262:	$offsetValueType = $offsetValueType->getOffsetValueType($offsetType);
6263:	$offsetValueTypeStack[] = $offsetValueType;
6264:	}
6265:	foreach (array_slice($offsetNativeTypes, 0, -1) as [$offsetNativeType]) {
6266:	$offsetNativeValueType = $offsetNativeValueType->getOffsetValueType($offsetNativeType);
6267:	$offsetValueNativeTypeStack[] = $offsetNativeValueType;
6268:	}
6269:
6270:	foreach (array_reverse($offsetTypes) as [$offsetType]) {
6271:	/** @var Type $offsetValueType */
6272:	$offsetValueType = array_pop($offsetValueTypeStack);
6273:	$valueToWrite = $offsetValueType->setExistingOffsetValueType($offsetType, $valueToWrite);
6274:	}
6275:	foreach (array_reverse($offsetNativeTypes) as [$offsetNativeType]) {
6276:	/** @var Type $offsetNativeValueType */
6277:	$offsetNativeValueType = array_pop($offsetValueNativeTypeStack);
6278:	$nativeValueToWrite = $offsetNativeValueType->setExistingOffsetValueType($offsetNativeType, $nativeValueToWrite);
6279:	}
6280:
6281:	if ($var instanceof Variable && is_string($var->name)) {
6282:	$nodeCallback(new VariableAssignNode($var, $assignedPropertyExpr), $scope);
6283:	$scope = $scope->assignVariable($var->name, $valueToWrite, $nativeValueToWrite, TrinaryLogic::createYes());
6284:	} else {
6285:	if ($var instanceof PropertyFetch \|\| $var instanceof StaticPropertyFetch) {
6286:	$nodeCallback(new PropertyAssignNode($var, $assignedPropertyExpr, $isAssignOp), $scope);
6287:	}
6288:	$scope = $scope->assignExpression(
6289:	$var,
6290:	$valueToWrite,
6291:	$nativeValueToWrite,
6292:	);
6293:	}
6294:	} else {
6295:	$result = $processExprCallback($scope);
6296:	$hasYield = $result->hasYield();
6297:	$throwPoints = $result->getThrowPoints();
6298:	$impurePoints = $result->getImpurePoints();
6299:	$isAlwaysTerminating = $result->isAlwaysTerminating();
6300:	$scope = $result->getScope();
6301:	}
6302:
6303:	return new ExpressionResult($scope, $hasYield, $isAlwaysTerminating, $throwPoints, $impurePoints);
6304:	}
6305:
6306:	/**
6307:	* @param callable(Node $node, Scope $scope): void $nodeCallback
6308:	*/
6309:	private function processVirtualAssign(MutatingScope $scope, Node\Stmt $stmt, Expr $var, Expr $assignedExpr, callable $nodeCallback): ExpressionResult
6310:	{
6311:	return $this->processAssignVar(
6312:	$scope,
6313:	$stmt,
6314:	$var,
6315:	$assignedExpr,
6316:	static function (Node $node, Scope $scope) use ($nodeCallback): void {
6317:	if (!$node instanceof PropertyAssignNode && !$node instanceof VariableAssignNode) {
6318:	return;
6319:	}
6320:
6321:	$nodeCallback($node, $scope);
6322:	},
6323:	ExpressionContext::createDeep(),
6324:	static fn (MutatingScope $scope): ExpressionResult => new ExpressionResult($scope, false, false, [], []),
6325:	false,
6326:	);
6327:	}
6328:
6329:	/**
6330:	* @param list<ArrayDimFetch> $dimFetchStack
6331:	*/
6332:	private function isImplicitArrayCreation(array $dimFetchStack, Scope $scope): TrinaryLogic
6333:	{
6334:	if (count($dimFetchStack) === 0) {
6335:	return TrinaryLogic::createNo();
6336:	}
6337:
6338:	$varNode = $dimFetchStack[0]->var;
6339:	if (!$varNode instanceof Variable) {
6340:	return TrinaryLogic::createNo();
6341:	}
6342:
6343:	if (!is_string($varNode->name)) {
6344:	return TrinaryLogic::createNo();
6345:	}
6346:
6347:	return $scope->hasVariableType($varNode->name)->negate();
6348:	}
6349:
6350:	/**
6351:	* @param list<ArrayDimFetch> $dimFetchStack
6352:	* @param list<array{Type\|null, ArrayDimFetch}> $offsetTypes
6353:	*
6354:	* @return array{Type, list<array{Expr, Type}>}
6355:	*/
6356:	private function produceArrayDimFetchAssignValueToWrite(array $dimFetchStack, array $offsetTypes, Type $offsetValueType, Type $valueToWrite, Scope $scope): array
6357:	{
6358:	$originalValueToWrite = $valueToWrite;
6359:
6360:	$offsetValueTypeStack = [$offsetValueType];
6361:	foreach (array_slice($offsetTypes, 0, -1) as [$offsetType, $dimFetch]) {
6362:	if ($offsetType === null) {
6363:	$offsetValueType = new ConstantArrayType([], []);
6364:
6365:	} else {
6366:	$has = $offsetValueType->hasOffsetValueType($offsetType);
6367:	if ($has->yes()) {
6368:	$offsetValueType = $offsetValueType->getOffsetValueType($offsetType);
6369:	} elseif ($has->maybe()) {
6370:	if (!$scope->hasExpressionType($dimFetch)->yes()) {
6371:	$offsetValueType = TypeCombinator::union($offsetValueType->getOffsetValueType($offsetType), new ConstantArrayType([], []));
6372:	} else {
6373:	$offsetValueType = $offsetValueType->getOffsetValueType($offsetType);
6374:	}
6375:	} else {
6376:	$offsetValueType = new ConstantArrayType([], []);
6377:	}
6378:	}
6379:
6380:	$offsetValueTypeStack[] = $offsetValueType;
6381:	}
6382:
6383:	foreach (array_reverse($offsetTypes) as $i => [$offsetType]) {
6384:	/** @var Type $offsetValueType */
6385:	$offsetValueType = array_pop($offsetValueTypeStack);
6386:	if (
6387:	!$offsetValueType instanceof MixedType
6388:	&& !$offsetValueType->isConstantArray()->yes()
6389:	) {
6390:	$types = [
6391:	new ArrayType(new MixedType(), new MixedType()),
6392:	new ObjectType(ArrayAccess::class),
6393:	new NullType(),
6394:	];
6395:	if ($offsetType !== null && $offsetType->isInteger()->yes()) {
6396:	$types[] = new StringType();
6397:	}
6398:	$offsetValueType = TypeCombinator::intersect($offsetValueType, TypeCombinator::union(...$types));
6399:	}
6400:
6401:	$arrayDimFetch = $dimFetchStack[$i] ?? null;
6402:	if (
6403:	$offsetType !== null
6404:	&& $arrayDimFetch !== null
6405:	&& $scope->hasExpressionType($arrayDimFetch)->yes()
6406:	) {
6407:	$hasOffsetType = null;
6408:	if ($offsetType instanceof ConstantStringType \|\| $offsetType instanceof ConstantIntegerType) {
6409:	$hasOffsetType = new HasOffsetValueType($offsetType, $valueToWrite);
6410:	}
6411:	$valueToWrite = $offsetValueType->setExistingOffsetValueType($offsetType, $valueToWrite);
6412:
6413:	if ($valueToWrite->isArray()->yes()) {
6414:	if ($hasOffsetType !== null) {
6415:	$valueToWrite = TypeCombinator::intersect(
6416:	$valueToWrite,
6417:	$hasOffsetType,
6418:	);
6419:	} else {
6420:	$valueToWrite = TypeCombinator::intersect(
6421:	$valueToWrite,
6422:	new NonEmptyArrayType(),
6423:	);
6424:	}
6425:	}
6426:
6427:	} else {
6428:	$valueToWrite = $offsetValueType->setOffsetValueType($offsetType, $valueToWrite, $i === 0);
6429:	}
6430:
6431:	if ($arrayDimFetch === null \|\| !$offsetValueType->isList()->yes()) {
6432:	continue;
6433:	}
6434:
6435:	if (!$arrayDimFetch->dim instanceof BinaryOp\Plus) {
6436:	continue;
6437:	}
6438:
6439:	if ( // keep list for $list[$index + 1] assignments
6440:	$arrayDimFetch->dim->right instanceof Variable
6441:	&& $arrayDimFetch->dim->left instanceof Node\Scalar\Int_
6442:	&& $arrayDimFetch->dim->left->value === 1
6443:	&& $scope->hasExpressionType(new ArrayDimFetch($arrayDimFetch->var, $arrayDimFetch->dim->right))->yes()
6444:	) {
6445:	$valueToWrite = TypeCombinator::intersect($valueToWrite, new AccessoryArrayListType());
6446:	} elseif ( // keep list for $list[1 + $index] assignments
6447:	$arrayDimFetch->dim->left instanceof Variable
6448:	&& $arrayDimFetch->dim->right instanceof Node\Scalar\Int_
6449:	&& $arrayDimFetch->dim->right->value === 1
6450:	&& $scope->hasExpressionType(new ArrayDimFetch($arrayDimFetch->var, $arrayDimFetch->dim->left))->yes()
6451:	) {
6452:	$valueToWrite = TypeCombinator::intersect($valueToWrite, new AccessoryArrayListType());
6453:	}
6454:	}
6455:
6456:	$additionalExpressions = [];
6457:	$offsetValueType = $valueToWrite;
6458:	$lastDimKey = array_key_last($dimFetchStack);
6459:	foreach ($dimFetchStack as $key => $dimFetch) {
6460:	if ($dimFetch->dim === null) {
6461:	continue;
6462:	}
6463:
6464:	if ($key === $lastDimKey) {
6465:	$offsetValueType = $originalValueToWrite;
6466:	} else {
6467:	$offsetType = $scope->getType($dimFetch->dim);
6468:	$offsetValueType = $offsetValueType->getOffsetValueType($offsetType);
6469:	}
6470:
6471:	$additionalExpressions[] = [$dimFetch, $offsetValueType];
6472:	}
6473:
6474:	return [$valueToWrite, $additionalExpressions];
6475:	}
6476:
6477:	private function unwrapAssign(Expr $expr): Expr
6478:	{
6479:	if ($expr instanceof Assign) {
6480:	return $this->unwrapAssign($expr->expr);
6481:	}
6482:
6483:	return $expr;
6484:	}
6485:
6486:	/**
6487:	* @param array<string, ConditionalExpressionHolder[]> $conditionalExpressions
6488:	* @return array<string, ConditionalExpressionHolder[]>
6489:	*/
6490:	private function processSureTypesForConditionalExpressionsAfterAssign(Scope $scope, string $variableName, array $conditionalExpressions, SpecifiedTypes $specifiedTypes, Type $variableType): array
6491:	{
6492:	foreach ($specifiedTypes->getSureTypes() as $exprString => [$expr, $exprType]) {
6493:	if (!$expr instanceof Variable) {
6494:	continue;
6495:	}
6496:	if (!is_string($expr->name)) {
6497:	continue;
6498:	}
6499:
6500:	if ($expr->name === $variableName) {
6501:	continue;
6502:	}
6503:
6504:	if (!isset($conditionalExpressions[$exprString])) {
6505:	$conditionalExpressions[$exprString] = [];
6506:	}
6507:
6508:	$holder = new ConditionalExpressionHolder([
6509:	'$' . $variableName => ExpressionTypeHolder::createYes(new Variable($variableName), $variableType),
6510:	], ExpressionTypeHolder::createYes(
6511:	$expr,
6512:	TypeCombinator::intersect($scope->getType($expr), $exprType),
6513:	));
6514:	$conditionalExpressions[$exprString][$holder->getKey()] = $holder;
6515:	}
6516:
6517:	return $conditionalExpressions;
6518:	}
6519:
6520:	/**
6521:	* @param array<string, ConditionalExpressionHolder[]> $conditionalExpressions
6522:	* @return array<string, ConditionalExpressionHolder[]>
6523:	*/
6524:	private function processSureNotTypesForConditionalExpressionsAfterAssign(Scope $scope, string $variableName, array $conditionalExpressions, SpecifiedTypes $specifiedTypes, Type $variableType): array
6525:	{
6526:	foreach ($specifiedTypes->getSureNotTypes() as $exprString => [$expr, $exprType]) {
6527:	if (!$expr instanceof Variable) {
6528:	continue;
6529:	}
6530:	if (!is_string($expr->name)) {
6531:	continue;
6532:	}
6533:
6534:	if ($expr->name === $variableName) {
6535:	continue;
6536:	}
6537:
6538:	if (!isset($conditionalExpressions[$exprString])) {
6539:	$conditionalExpressions[$exprString] = [];
6540:	}
6541:
6542:	$holder = new ConditionalExpressionHolder([
6543:	'$' . $variableName => ExpressionTypeHolder::createYes(new Variable($variableName), $variableType),
6544:	], ExpressionTypeHolder::createYes(
6545:	$expr,
6546:	TypeCombinator::remove($scope->getType($expr), $exprType),
6547:	));
6548:	$conditionalExpressions[$exprString][$holder->getKey()] = $holder;
6549:	}
6550:
6551:	return $conditionalExpressions;
6552:	}
6553:
6554:	/**
6555:	* @param callable(Node $node, Scope $scope): void $nodeCallback
6556:	*/
6557:	private function processStmtVarAnnotation(MutatingScope $scope, Node\Stmt $stmt, ?Expr $defaultExpr, callable $nodeCallback): MutatingScope
6558:	{
6559:	$function = $scope->getFunction();
6560:	$variableLessTags = [];
6561:
6562:	foreach ($stmt->getComments() as $comment) {
6563:	if (!$comment instanceof Doc) {
6564:	continue;
6565:	}
6566:
6567:	$resolvedPhpDoc = $this->fileTypeMapper->getResolvedPhpDoc(
6568:	$scope->getFile(),
6569:	$scope->isInClass() ? $scope->getClassReflection()->getName() : null,
6570:	$scope->isInTrait() ? $scope->getTraitReflection()->getName() : null,
6571:	$function !== null ? $function->getName() : null,
6572:	$comment->getText(),
6573:	);
6574:
6575:	$assignedVariable = null;
6576:	if (
6577:	$stmt instanceof Node\Stmt\Expression
6578:	&& ($stmt->expr instanceof Assign \|\| $stmt->expr instanceof AssignRef)
6579:	&& $stmt->expr->var instanceof Variable
6580:	&& is_string($stmt->expr->var->name)
6581:	) {
6582:	$assignedVariable = $stmt->expr->var->name;
6583:	}
6584:
6585:	foreach ($resolvedPhpDoc->getVarTags() as $name => $varTag) {
6586:	if (is_int($name)) {
6587:	$variableLessTags[] = $varTag;
6588:	continue;
6589:	}
6590:
6591:	if ($name === $assignedVariable) {
6592:	continue;
6593:	}
6594:
6595:	$certainty = $scope->hasVariableType($name);
6596:	if ($certainty->no()) {
6597:	continue;
6598:	}
6599:
6600:	if ($scope->isInClass() && $scope->getFunction() === null) {
6601:	continue;
6602:	}
6603:
6604:	if ($scope->canAnyVariableExist()) {
6605:	$certainty = TrinaryLogic::createYes();
6606:	}
6607:
6608:	$variableNode = new Variable($name, $stmt->getAttributes());
6609:	$originalType = $scope->getVariableType($name);
6610:	if (!$originalType->equals($varTag->getType())) {
6611:	$nodeCallback(new VarTagChangedExpressionTypeNode($varTag, $variableNode), $scope);
6612:	}
6613:
6614:	$scope = $scope->assignVariable(
6615:	$name,
6616:	$varTag->getType(),
6617:	$scope->getNativeType($variableNode),
6618:	$certainty,
6619:	);
6620:	}
6621:	}
6622:
6623:	if (count($variableLessTags) === 1 && $defaultExpr !== null) {
6624:	$originalType = $scope->getType($defaultExpr);
6625:	$varTag = $variableLessTags[0];
6626:	if (!$originalType->equals($varTag->getType())) {
6627:	$nodeCallback(new VarTagChangedExpressionTypeNode($varTag, $defaultExpr), $scope);
6628:	}
6629:	$scope = $scope->assignExpression($defaultExpr, $varTag->getType(), new MixedType());
6630:	}
6631:
6632:	return $scope;
6633:	}
6634:
6635:	/**
6636:	* @param array<int, string> $variableNames
6637:	*/
6638:	private function processVarAnnotation(MutatingScope $scope, array $variableNames, Node\Stmt $node, bool &$changed = false): MutatingScope
6639:	{
6640:	$function = $scope->getFunction();
6641:	$varTags = [];
6642:	foreach ($node->getComments() as $comment) {
6643:	if (!$comment instanceof Doc) {
6644:	continue;
6645:	}
6646:
6647:	$resolvedPhpDoc = $this->fileTypeMapper->getResolvedPhpDoc(
6648:	$scope->getFile(),
6649:	$scope->isInClass() ? $scope->getClassReflection()->getName() : null,
6650:	$scope->isInTrait() ? $scope->getTraitReflection()->getName() : null,
6651:	$function !== null ? $function->getName() : null,
6652:	$comment->getText(),
6653:	);
6654:	foreach ($resolvedPhpDoc->getVarTags() as $key => $varTag) {
6655:	$varTags[$key] = $varTag;
6656:	}
6657:	}
6658:
6659:	if (count($varTags) === 0) {
6660:	return $scope;
6661:	}
6662:
6663:	foreach ($variableNames as $variableName) {
6664:	if (!isset($varTags[$variableName])) {
6665:	continue;
6666:	}
6667:
6668:	$variableType = $varTags[$variableName]->getType();
6669:	$changed = true;
6670:	$scope = $scope->assignVariable($variableName, $variableType, new MixedType(), TrinaryLogic::createYes());
6671:	}
6672:
6673:	if (count($variableNames) === 1 && count($varTags) === 1 && isset($varTags[0])) {
6674:	$variableType = $varTags[0]->getType();
6675:	$changed = true;
6676:	$scope = $scope->assignVariable($variableNames[0], $variableType, new MixedType(), TrinaryLogic::createYes());
6677:	}
6678:
6679:	return $scope;
6680:	}
6681:
6682:	/**
6683:	* @param callable(Node $node, Scope $scope): void $nodeCallback
6684:	*/
6685:	private function enterForeach(MutatingScope $scope, MutatingScope $originalScope, Foreach_ $stmt, callable $nodeCallback): MutatingScope
6686:	{
6687:	if ($stmt->expr instanceof Variable && is_string($stmt->expr->name)) {
6688:	$scope = $this->processVarAnnotation($scope, [$stmt->expr->name], $stmt);
6689:	}
6690:
6691:	$iterateeType = $originalScope->getType($stmt->expr);
6692:	if (
6693:	($stmt->valueVar instanceof Variable && is_string($stmt->valueVar->name))
6694:	&& ($stmt->keyVar === null \|\| ($stmt->keyVar instanceof Variable && is_string($stmt->keyVar->name)))
6695:	) {
6696:	$keyVarName = null;
6697:	if ($stmt->keyVar instanceof Variable && is_string($stmt->keyVar->name)) {
6698:	$keyVarName = $stmt->keyVar->name;
6699:	}
6700:	$scope = $scope->enterForeach(
6701:	$originalScope,
6702:	$stmt->expr,
6703:	$stmt->valueVar->name,
6704:	$keyVarName,
6705:	$stmt->byRef,
6706:	);
6707:	$vars = [$stmt->valueVar->name];
6708:	if ($keyVarName !== null) {
6709:	$vars[] = $keyVarName;
6710:	}
6711:	} else {
6712:	$scope = $this->processVirtualAssign(
6713:	$scope,
6714:	$stmt,
6715:	$stmt->valueVar,
6716:	new GetIterableValueTypeExpr($stmt->expr),
6717:	$nodeCallback,
6718:	)->getScope();
6719:	$vars = $this->getAssignedVariables($stmt->valueVar);
6720:	if (
6721:	$stmt->keyVar instanceof Variable && is_string($stmt->keyVar->name)
6722:	) {
6723:	$scope = $scope->enterForeachKey($originalScope, $stmt->expr, $stmt->keyVar->name);
6724:	$vars[] = $stmt->keyVar->name;
6725:	} elseif ($stmt->keyVar !== null) {
6726:	$scope = $this->processVirtualAssign(
6727:	$scope,
6728:	$stmt,
6729:	$stmt->keyVar,
6730:	new GetIterableKeyTypeExpr($stmt->expr),
6731:	$nodeCallback,
6732:	)->getScope();
6733:	$vars = array_merge($vars, $this->getAssignedVariables($stmt->keyVar));
6734:	}
6735:	}
6736:
6737:	$constantArrays = $iterateeType->getConstantArrays();
6738:	if (
6739:	$stmt->getDocComment() === null
6740:	&& $iterateeType->isConstantArray()->yes()
6741:	&& count($constantArrays) === 1
6742:	&& $stmt->valueVar instanceof Variable && is_string($stmt->valueVar->name)
6743:	&& $stmt->keyVar instanceof Variable && is_string($stmt->keyVar->name)
6744:	) {
6745:	$valueConditionalHolders = [];
6746:	$arrayDimFetchConditionalHolders = [];
6747:	foreach ($constantArrays[0]->getKeyTypes() as $i => $keyType) {
6748:	$valueType = $constantArrays[0]->getValueTypes()[$i];
6749:	$holder = new ConditionalExpressionHolder([
6750:	'$' . $stmt->keyVar->name => ExpressionTypeHolder::createYes(new Variable($stmt->keyVar->name), $keyType),
6751:	], new ExpressionTypeHolder($stmt->valueVar, $valueType, TrinaryLogic::createYes()));
6752:	$valueConditionalHolders[$holder->getKey()] = $holder;
6753:	$arrayDimFetchHolder = new ConditionalExpressionHolder([
6754:	'$' . $stmt->keyVar->name => ExpressionTypeHolder::createYes(new Variable($stmt->keyVar->name), $keyType),
6755:	], new ExpressionTypeHolder(new ArrayDimFetch($stmt->expr, $stmt->keyVar), $valueType, TrinaryLogic::createYes()));
6756:	$arrayDimFetchConditionalHolders[$arrayDimFetchHolder->getKey()] = $arrayDimFetchHolder;
6757:	}
6758:
6759:	$scope = $scope->addConditionalExpressions(
6760:	'$' . $stmt->valueVar->name,
6761:	$valueConditionalHolders,
6762:	);
6763:	if ($stmt->expr instanceof Variable && is_string($stmt->expr->name)) {
6764:	$scope = $scope->addConditionalExpressions(
6765:	sprintf('$%s[$%s]', $stmt->expr->name, $stmt->keyVar->name),
6766:	$arrayDimFetchConditionalHolders,
6767:	);
6768:	}
6769:	}
6770:
6771:	if (
6772:	$stmt->expr instanceof FuncCall
6773:	&& $stmt->expr->name instanceof Name
6774:	&& $stmt->expr->name->toLowerString() === 'array_keys'
6775:	&& $stmt->valueVar instanceof Variable
6776:	) {
6777:	$args = $stmt->expr->getArgs();
6778:	if (count($args) >= 1) {
6779:	$arrayArg = $args[0]->value;
6780:	$scope = $scope->assignExpression(
6781:	new ArrayDimFetch($arrayArg, $stmt->valueVar),
6782:	$scope->getType($arrayArg)->getIterableValueType(),
6783:	$scope->getNativeType($arrayArg)->getIterableValueType(),
6784:	);
6785:	}
6786:	}
6787:
6788:	return $this->processVarAnnotation($scope, $vars, $stmt);
6789:	}
6790:
6791:	/**
6792:	* @param callable(Node $node, Scope $scope): void $nodeCallback
6793:	*/
6794:	private function processTraitUse(Node\Stmt\TraitUse $node, MutatingScope $classScope, callable $nodeCallback): void
6795:	{
6796:	$parentTraitNames = [];
6797:	$parent = $classScope->getParentScope();
6798:	while ($parent !== null) {
6799:	if ($parent->isInTrait()) {
6800:	$parentTraitNames[] = $parent->getTraitReflection()->getName();
6801:	}
6802:	$parent = $parent->getParentScope();
6803:	}
6804:
6805:	foreach ($node->traits as $trait) {
6806:	$traitName = (string) $trait;
6807:	if (in_array($traitName, $parentTraitNames, true)) {
6808:	continue;
6809:	}
6810:	if (!$this->reflectionProvider->hasClass($traitName)) {
6811:	continue;
6812:	}
6813:	$traitReflection = $this->reflectionProvider->getClass($traitName);
6814:	$traitFileName = $traitReflection->getFileName();
6815:	if ($traitFileName === null) {
6816:	continue; // trait from eval or from PHP itself
6817:	}
6818:	$fileName = $this->fileHelper->normalizePath($traitFileName);
6819:	if (!isset($this->analysedFiles[$fileName])) {
6820:	continue;
6821:	}
6822:	$adaptations = [];
6823:	foreach ($node->adaptations as $adaptation) {
6824:	if ($adaptation->trait === null) {
6825:	$adaptations[] = $adaptation;
6826:	continue;
6827:	}
6828:	if ($adaptation->trait->toLowerString() !== $trait->toLowerString()) {
6829:	continue;
6830:	}
6831:
6832:	$adaptations[] = $adaptation;
6833:	}
6834:	$parserNodes = $this->parser->parseFile($fileName);
6835:	$this->processNodesForTraitUse($parserNodes, $traitReflection, $classScope, $adaptations, $nodeCallback);
6836:	}
6837:	}
6838:
6839:	/**
6840:	* @param Node[]\|Node\|scalar\|null $node
6841:	* @param Node\Stmt\TraitUseAdaptation[] $adaptations
6842:	* @param callable(Node $node, Scope $scope): void $nodeCallback
6843:	*/
6844:	private function processNodesForTraitUse($node, ClassReflection $traitReflection, MutatingScope $scope, array $adaptations, callable $nodeCallback): void
6845:	{
6846:	if ($node instanceof Node) {
6847:	if ($node instanceof Node\Stmt\Trait_ && $traitReflection->getName() === (string) $node->namespacedName && $traitReflection->getNativeReflection()->getStartLine() === $node->getStartLine()) {
6848:	$methodModifiers = [];
6849:	$methodNames = [];
6850:	foreach ($adaptations as $adaptation) {
6851:	if (!$adaptation instanceof Node\Stmt\TraitUseAdaptation\Alias) {
6852:	continue;
6853:	}
6854:
6855:	$methodName = $adaptation->method->toLowerString();
6856:	if ($adaptation->newModifier !== null) {
6857:	$methodModifiers[$methodName] = $adaptation->newModifier;
6858:	}
6859:
6860:	if ($adaptation->newName === null) {
6861:	continue;
6862:	}
6863:
6864:	$methodNames[$methodName] = $adaptation->newName;
6865:	}
6866:
6867:	$stmts = $node->stmts;
6868:	foreach ($stmts as $i => $stmt) {
6869:	if (!$stmt instanceof Node\Stmt\ClassMethod) {
6870:	continue;
6871:	}
6872:	$methodName = $stmt->name->toLowerString();
6873:	$methodAst = clone $stmt;
6874:	$stmts[$i] = $methodAst;
6875:	if (array_key_exists($methodName, $methodModifiers)) {
6876:	$methodAst->flags = ($methodAst->flags & ~ Modifiers::VISIBILITY_MASK) \| $methodModifiers[$methodName];
6877:	}
6878:
6879:	if (!array_key_exists($methodName, $methodNames)) {
6880:	continue;
6881:	}
6882:
6883:	$methodAst->setAttribute('originalTraitMethodName', $methodAst->name->toLowerString());
6884:	$methodAst->name = $methodNames[$methodName];
6885:	}
6886:
6887:	if (!$scope->isInClass()) {
6888:	throw new ShouldNotHappenException();
6889:	}
6890:	$traitScope = $scope->enterTrait($traitReflection);
6891:	$nodeCallback(new InTraitNode($node, $traitReflection, $scope->getClassReflection()), $traitScope);
6892:	$this->processStmtNodesInternal($node, $stmts, $traitScope, $nodeCallback, StatementContext::createTopLevel());
6893:	return;
6894:	}
6895:	if ($node instanceof Node\Stmt\ClassLike) {
6896:	return;
6897:	}
6898:	if ($node instanceof Node\FunctionLike) {
6899:	return;
6900:	}
6901:	foreach ($node->getSubNodeNames() as $subNodeName) {
6902:	$subNode = $node->{$subNodeName};
6903:	$this->processNodesForTraitUse($subNode, $traitReflection, $scope, $adaptations, $nodeCallback);
6904:	}
6905:	} elseif (is_array($node)) {
6906:	foreach ($node as $subNode) {
6907:	$this->processNodesForTraitUse($subNode, $traitReflection, $scope, $adaptations, $nodeCallback);
6908:	}
6909:	}
6910:	}
6911:
6912:	private function processCalledMethod(MethodReflection $methodReflection): ?MutatingScope
6913:	{
6914:	$declaringClass = $methodReflection->getDeclaringClass();
6915:	if ($declaringClass->isAnonymous()) {
6916:	return null;
6917:	}
6918:	if ($declaringClass->getFileName() === null) {
6919:	return null;
6920:	}
6921:
6922:	$stackName = sprintf('%s::%s', $declaringClass->getName(), $methodReflection->getName());
6923:	if (array_key_exists($stackName, $this->calledMethodResults)) {
6924:	return $this->calledMethodResults[$stackName];
6925:	}
6926:
6927:	if (array_key_exists($stackName, $this->calledMethodStack)) {
6928:	return null;
6929:	}
6930:
6931:	if (count($this->calledMethodStack) > 0) {
6932:	return null;
6933:	}
6934:
6935:	$this->calledMethodStack[$stackName] = true;
6936:
6937:	$fileName = $this->fileHelper->normalizePath($declaringClass->getFileName());
6938:	if (!isset($this->analysedFiles[$fileName])) {
6939:	return null;
6940:	}
6941:	$parserNodes = $this->parser->parseFile($fileName);
6942:
6943:	$returnStatement = null;
6944:	$this->processNodesForCalledMethod($parserNodes, $fileName, $methodReflection, static function (Node $node, Scope $scope) use ($methodReflection, &$returnStatement): void {
6945:	if (!$node instanceof MethodReturnStatementsNode) {
6946:	return;
6947:	}
6948:
6949:	if ($node->getClassReflection()->getName() !== $methodReflection->getDeclaringClass()->getName()) {
6950:	return;
6951:	}
6952:
6953:	if ($returnStatement !== null) {
6954:	return;
6955:	}
6956:
6957:	$returnStatement = $node;
6958:	});
6959:
6960:	$calledMethodEndScope = null;
6961:	if ($returnStatement !== null) {
6962:	foreach ($returnStatement->getExecutionEnds() as $executionEnd) {
6963:	$statementResult = $executionEnd->getStatementResult();
6964:	$endNode = $executionEnd->getNode();
6965:	if ($endNode instanceof Node\Stmt\Expression) {
6966:	$exprType = $statementResult->getScope()->getType($endNode->expr);
6967:	if ($exprType instanceof NeverType && $exprType->isExplicit()) {
6968:	continue;
6969:	}
6970:	}
6971:	if ($calledMethodEndScope === null) {
6972:	$calledMethodEndScope = $statementResult->getScope();
6973:	continue;
6974:	}
6975:
6976:	$calledMethodEndScope = $calledMethodEndScope->mergeWith($statementResult->getScope());
6977:	}
6978:	foreach ($returnStatement->getReturnStatements() as $statement) {
6979:	if ($calledMethodEndScope === null) {
6980:	$calledMethodEndScope = $statement->getScope();
6981:	continue;
6982:	}
6983:
6984:	$calledMethodEndScope = $calledMethodEndScope->mergeWith($statement->getScope());
6985:	}
6986:	}
6987:
6988:	unset($this->calledMethodStack[$stackName]);
6989:
6990:	$this->calledMethodResults[$stackName] = $calledMethodEndScope;
6991:
6992:	return $calledMethodEndScope;
6993:	}
6994:
6995:	/**
6996:	* @param Node[]\|Node\|scalar\|null $node
6997:	* @param callable(Node $node, Scope $scope): void $nodeCallback
6998:	*/
6999:	private function processNodesForCalledMethod($node, string $fileName, MethodReflection $methodReflection, callable $nodeCallback): void
7000:	{
7001:	if ($node instanceof Node) {
7002:	$declaringClass = $methodReflection->getDeclaringClass();
7003:	if (
7004:	$node instanceof Node\Stmt\Class_
7005:	&& isset($node->namespacedName)
7006:	&& $declaringClass->getName() === (string) $node->namespacedName
7007:	&& $declaringClass->getNativeReflection()->getStartLine() === $node->getStartLine()
7008:	) {
7009:
7010:	$stmts = $node->stmts;
7011:	foreach ($stmts as $stmt) {
7012:	if (!$stmt instanceof Node\Stmt\ClassMethod) {
7013:	continue;
7014:	}
7015:
7016:	if ($stmt->name->toString() !== $methodReflection->getName()) {
7017:	continue;
7018:	}
7019:
7020:	if ($stmt->getEndLine() - $stmt->getStartLine() > 50) {
7021:	continue;
7022:	}
7023:
7024:	$scope = $this->scopeFactory->create(ScopeContext::create($fileName))->enterClass($declaringClass);
7025:	$this->processStmtNode($stmt, $scope, $nodeCallback, StatementContext::createTopLevel());
7026:	}
7027:	return;
7028:	}
7029:	if ($node instanceof Node\Stmt\ClassLike) {
7030:	return;
7031:	}
7032:	if ($node instanceof Node\FunctionLike) {
7033:	return;
7034:	}
7035:	foreach ($node->getSubNodeNames() as $subNodeName) {
7036:	$subNode = $node->{$subNodeName};
7037:	$this->processNodesForCalledMethod($subNode, $fileName, $methodReflection, $nodeCallback);
7038:	}
7039:	} elseif (is_array($node)) {
7040:	foreach ($node as $subNode) {
7041:	$this->processNodesForCalledMethod($subNode, $fileName, $methodReflection, $nodeCallback);
7042:	}
7043:	}
7044:	}
7045:
7046:	/**
7047:	* @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}
7048:	*/
7049:	public function getPhpDocs(Scope $scope, Node\FunctionLike\|Node\Stmt\Property $node): array
7050:	{
7051:	$templateTypeMap = TemplateTypeMap::createEmpty();
7052:	$phpDocParameterTypes = [];
7053:	$phpDocImmediatelyInvokedCallableParameters = [];
7054:	$phpDocClosureThisTypeParameters = [];
7055:	$phpDocReturnType = null;
7056:	$phpDocThrowType = null;
7057:	$deprecatedDescription = null;
7058:	$isDeprecated = false;
7059:	$isInternal = false;
7060:	$isFinal = false;
7061:	$isPure = null;
7062:	$isAllowedPrivateMutation = false;
7063:	$acceptsNamedArguments = true;
7064:	$isReadOnly = $scope->isInClass() && $scope->getClassReflection()->isImmutable();
7065:	$asserts = Assertions::createEmpty();
7066:	$selfOutType = null;
7067:	$docComment = $node->getDocComment() !== null
7068:	? $node->getDocComment()->getText()
7069:	: null;
7070:
7071:	$file = $scope->getFile();
7072:	$class = $scope->isInClass() ? $scope->getClassReflection()->getName() : null;
7073:	$trait = $scope->isInTrait() ? $scope->getTraitReflection()->getName() : null;
7074:	$resolvedPhpDoc = null;
7075:	$functionName = null;
7076:	$phpDocParameterOutTypes = [];
7077:
7078:	if ($node instanceof Node\Stmt\ClassMethod) {
7079:	if (!$scope->isInClass()) {
7080:	throw new ShouldNotHappenException();
7081:	}
7082:	$functionName = $node->name->name;
7083:	$positionalParameterNames = array_map(static function (Node\Param $param): string {
7084:	if (!$param->var instanceof Variable \|\| !is_string($param->var->name)) {
7085:	throw new ShouldNotHappenException();
7086:	}
7087:
7088:	return $param->var->name;
7089:	}, $node->getParams());
7090:	$resolvedPhpDoc = $this->phpDocInheritanceResolver->resolvePhpDocForMethod(
7091:	$docComment,
7092:	$file,
7093:	$scope->getClassReflection(),
7094:	$trait,
7095:	$node->name->name,
7096:	$positionalParameterNames,
7097:	);
7098:
7099:	if ($node->name->toLowerString() === '__construct') {
7100:	foreach ($node->params as $param) {
7101:	if ($param->flags === 0) {
7102:	continue;
7103:	}
7104:
7105:	if ($param->getDocComment() === null) {
7106:	continue;
7107:	}
7108:
7109:	if (
7110:	!$param->var instanceof Variable
7111:	\|\| !is_string($param->var->name)
7112:	) {
7113:	throw new ShouldNotHappenException();
7114:	}
7115:
7116:	$paramPhpDoc = $this->fileTypeMapper->getResolvedPhpDoc(
7117:	$file,
7118:	$class,
7119:	$trait,
7120:	'__construct',
7121:	$param->getDocComment()->getText(),
7122:	);
7123:	$varTags = $paramPhpDoc->getVarTags();
7124:	if (isset($varTags[0]) && count($varTags) === 1) {
7125:	$phpDocType = $varTags[0]->getType();
7126:	} elseif (isset($varTags[$param->var->name])) {
7127:	$phpDocType = $varTags[$param->var->name]->getType();
7128:	} else {
7129:	continue;
7130:	}
7131:
7132:	$phpDocParameterTypes[$param->var->name] = $phpDocType;
7133:	}
7134:	}
7135:	} elseif ($node instanceof Node\Stmt\Function_) {
7136:	$functionName = trim($scope->getNamespace() . '\\' . $node->name->name, '\\');
7137:	} elseif ($node instanceof Node\PropertyHook) {
7138:	$propertyName = $node->getAttribute('propertyName');
7139:	if ($propertyName !== null) {
7140:	$functionName = sprintf('$%s::%s', $propertyName, $node->name->toString());
7141:	}
7142:	}
7143:
7144:	if ($docComment !== null && $resolvedPhpDoc === null) {
7145:	$resolvedPhpDoc = $this->fileTypeMapper->getResolvedPhpDoc(
7146:	$file,
7147:	$class,
7148:	$trait,
7149:	$functionName,
7150:	$docComment,
7151:	);
7152:	}
7153:
7154:	$varTags = [];
7155:	if ($resolvedPhpDoc !== null) {
7156:	$templateTypeMap = $resolvedPhpDoc->getTemplateTypeMap();
7157:	$phpDocImmediatelyInvokedCallableParameters = $resolvedPhpDoc->getParamsImmediatelyInvokedCallable();
7158:	foreach ($resolvedPhpDoc->getParamTags() as $paramName => $paramTag) {
7159:	if (array_key_exists($paramName, $phpDocParameterTypes)) {
7160:	continue;
7161:	}
7162:	$paramType = $paramTag->getType();
7163:	if ($scope->isInClass()) {
7164:	$paramType = $this->transformStaticType($scope->getClassReflection(), $paramType);
7165:	}
7166:	$phpDocParameterTypes[$paramName] = $paramType;
7167:	}
7168:	foreach ($resolvedPhpDoc->getParamClosureThisTags() as $paramName => $paramClosureThisTag) {
7169:	if (array_key_exists($paramName, $phpDocClosureThisTypeParameters)) {
7170:	continue;
7171:	}
7172:	$paramClosureThisType = $paramClosureThisTag->getType();
7173:	if ($scope->isInClass()) {
7174:	$paramClosureThisType = $this->transformStaticType($scope->getClassReflection(), $paramClosureThisType);
7175:	}
7176:	$phpDocClosureThisTypeParameters[$paramName] = $paramClosureThisType;
7177:	}
7178:
7179:	foreach ($resolvedPhpDoc->getParamOutTags() as $paramName => $paramOutTag) {
7180:	$phpDocParameterOutTypes[$paramName] = $paramOutTag->getType();
7181:	}
7182:	if ($node instanceof Node\FunctionLike) {
7183:	$nativeReturnType = $scope->getFunctionType($node->getReturnType(), false, false);
7184:	$phpDocReturnType = $this->getPhpDocReturnType($resolvedPhpDoc, $nativeReturnType);
7185:	if ($phpDocReturnType !== null && $scope->isInClass()) {
7186:	$phpDocReturnType = $this->transformStaticType($scope->getClassReflection(), $phpDocReturnType);
7187:	}
7188:	}
7189:	$phpDocThrowType = $resolvedPhpDoc->getThrowsTag() !== null ? $resolvedPhpDoc->getThrowsTag()->getType() : null;
7190:	$deprecatedDescription = $resolvedPhpDoc->getDeprecatedTag() !== null ? $resolvedPhpDoc->getDeprecatedTag()->getMessage() : null;
7191:	$isDeprecated = $resolvedPhpDoc->isDeprecated();
7192:	$isInternal = $resolvedPhpDoc->isInternal();
7193:	$isFinal = $resolvedPhpDoc->isFinal();
7194:	$isPure = $resolvedPhpDoc->isPure();
7195:	$isAllowedPrivateMutation = $resolvedPhpDoc->isAllowedPrivateMutation();
7196:	$acceptsNamedArguments = $resolvedPhpDoc->acceptsNamedArguments();
7197:	if ($acceptsNamedArguments && $scope->isInClass()) {
7198:	$acceptsNamedArguments = $scope->getClassReflection()->acceptsNamedArguments();
7199:	}
7200:	$isReadOnly = $isReadOnly \|\| $resolvedPhpDoc->isReadOnly();
7201:	$asserts = Assertions::createFromResolvedPhpDocBlock($resolvedPhpDoc);
7202:	$selfOutType = $resolvedPhpDoc->getSelfOutTag() !== null ? $resolvedPhpDoc->getSelfOutTag()->getType() : null;
7203:	$varTags = $resolvedPhpDoc->getVarTags();
7204:	}
7205:
7206:	return [$templateTypeMap, $phpDocParameterTypes, $phpDocImmediatelyInvokedCallableParameters, $phpDocClosureThisTypeParameters, $phpDocReturnType, $phpDocThrowType, $deprecatedDescription, $isDeprecated, $isInternal, $isFinal, $isPure, $acceptsNamedArguments, $isReadOnly, $docComment, $asserts, $selfOutType, $phpDocParameterOutTypes, $varTags, $isAllowedPrivateMutation];
7207:	}
7208:
7209:	private function transformStaticType(ClassReflection $declaringClass, Type $type): Type
7210:	{
7211:	return TypeTraverser::map($type, static function (Type $type, callable $traverse) use ($declaringClass): Type {
7212:	if ($type instanceof StaticType) {
7213:	$changedType = $type->changeBaseClass($declaringClass);
7214:	if ($declaringClass->isFinal() && !$type instanceof ThisType) {
7215:	$changedType = $changedType->getStaticObjectType();
7216:	}
7217:	return $traverse($changedType);
7218:	}
7219:
7220:	return $traverse($type);
7221:	});
7222:	}
7223:
7224:	private function getPhpDocReturnType(ResolvedPhpDocBlock $resolvedPhpDoc, Type $nativeReturnType): ?Type
7225:	{
7226:	$returnTag = $resolvedPhpDoc->getReturnTag();
7227:
7228:	if ($returnTag === null) {
7229:	return null;
7230:	}
7231:
7232:	$phpDocReturnType = $returnTag->getType();
7233:
7234:	if ($returnTag->isExplicit()) {
7235:	return $phpDocReturnType;
7236:	}
7237:
7238:	if ($nativeReturnType->isSuperTypeOf(TemplateTypeHelper::resolveToBounds($phpDocReturnType))->yes()) {
7239:	return $phpDocReturnType;
7240:	}
7241:
7242:	if ($phpDocReturnType instanceof UnionType) {
7243:	$types = [];
7244:	foreach ($phpDocReturnType->getTypes() as $innerType) {
7245:	if (!$nativeReturnType->isSuperTypeOf($innerType)->yes()) {
7246:	continue;
7247:	}
7248:
7249:	$types[] = $innerType;
7250:	}
7251:
7252:	if (count($types) === 0) {
7253:	return null;
7254:	}
7255:
7256:	return TypeCombinator::union(...$types);
7257:	}
7258:
7259:	return null;
7260:	}
7261:
7262:	/**
7263:	* @param array<Node> $nodes
7264:	* @return list<Node\Stmt>
7265:	*/
7266:	private function getNextUnreachableStatements(array $nodes, bool $earlyBinding): array
7267:	{
7268:	$stmts = [];
7269:	$isPassedUnreachableStatement = false;
7270:	foreach ($nodes as $node) {
7271:	if ($earlyBinding && ($node instanceof Node\Stmt\Function_ \|\| $node instanceof Node\Stmt\ClassLike \|\| $node instanceof Node\Stmt\HaltCompiler)) {
7272:	continue;
7273:	}
7274:	if ($isPassedUnreachableStatement && $node instanceof Node\Stmt) {
7275:	$stmts[] = $node;
7276:	continue;
7277:	}
7278:	if ($node instanceof Node\Stmt\Nop \|\| $node instanceof Node\Stmt\InlineHTML) {
7279:	continue;
7280:	}
7281:	if (!$node instanceof Node\Stmt) {
7282:	continue;
7283:	}
7284:	$stmts[] = $node;
7285:	$isPassedUnreachableStatement = true;
7286:	}
7287:	return $stmts;
7288:	}
7289:
7290:	/**
7291:	* @param array<Expr> $conditions
7292:	*/
7293:	private function getFilteringExprForMatchArm(Expr\Match_ $expr, array $conditions): BinaryOp\Identical\|FuncCall
7294:	{
7295:	if (count($conditions) === 1) {
7296:	return new BinaryOp\Identical($expr->cond, $conditions[0]);
7297:	}
7298:
7299:	$items = [];
7300:	foreach ($conditions as $filteringExpr) {
7301:	$items[] = new Node\ArrayItem($filteringExpr);
7302:	}
7303:
7304:	return new FuncCall(
7305:	new Name\FullyQualified('in_array'),
7306:	[
7307:	new Arg($expr->cond),
7308:	new Arg(new Array_($items)),
7309:	new Arg(new ConstFetch(new Name\FullyQualified('true'))),
7310:	],
7311:	);
7312:	}
7313:
7314:	private function inferForLoopExpressions(For_ $stmt, Expr $lastCondExpr, MutatingScope $bodyScope): MutatingScope
7315:	{
7316:	// infer $items[$i] type from for ($i = 0; $i < count($items); $i++) {...}
7317:
7318:	if (
7319:	// $i = 0
7320:	count($stmt->init) === 1
7321:	&& $stmt->init[0] instanceof Assign
7322:	&& $stmt->init[0]->var instanceof Variable
7323:	&& $stmt->init[0]->expr instanceof Node\Scalar\Int_
7324:	&& $stmt->init[0]->expr->value === 0
7325:	// $i++ or ++$i
7326:	&& count($stmt->loop) === 1
7327:	&& ($stmt->loop[0] instanceof Expr\PreInc \|\| $stmt->loop[0] instanceof Expr\PostInc)
7328:	&& $stmt->loop[0]->var instanceof Variable
7329:	) {
7330:	// $i < count($items)
7331:	if (
7332:	$lastCondExpr instanceof BinaryOp\Smaller
7333:	&& $lastCondExpr->left instanceof Variable
7334:	&& $lastCondExpr->right instanceof FuncCall
7335:	&& $lastCondExpr->right->name instanceof Name
7336:	&& $lastCondExpr->right->name->toLowerString() === 'count'
7337:	&& count($lastCondExpr->right->getArgs()) > 0
7338:	&& $lastCondExpr->right->getArgs()[0]->value instanceof Variable
7339:	&& is_string($stmt->init[0]->var->name)
7340:	&& $stmt->init[0]->var->name === $stmt->loop[0]->var->name
7341:	&& $stmt->init[0]->var->name === $lastCondExpr->left->name
7342:	) {
7343:	$arrayArg = $lastCondExpr->right->getArgs()[0]->value;
7344:	$bodyScope = $bodyScope->assignExpression(
7345:	new ArrayDimFetch($lastCondExpr->right->getArgs()[0]->value, $lastCondExpr->left),
7346:	$bodyScope->getType($arrayArg)->getIterableValueType(),
7347:	$bodyScope->getNativeType($arrayArg)->getIterableValueType(),
7348:	);
7349:	}
7350:
7351:	// count($items) > $i
7352:	if (
7353:	$lastCondExpr instanceof BinaryOp\Greater
7354:	&& $lastCondExpr->right instanceof Variable
7355:	&& $lastCondExpr->left instanceof FuncCall
7356:	&& $lastCondExpr->left->name instanceof Name
7357:	&& $lastCondExpr->left->name->toLowerString() === 'count'
7358:	&& count($lastCondExpr->left->getArgs()) > 0
7359:	&& $lastCondExpr->left->getArgs()[0]->value instanceof Variable
7360:	&& is_string($stmt->init[0]->var->name)
7361:	&& $stmt->init[0]->var->name === $stmt->loop[0]->var->name
7362:	&& $stmt->init[0]->var->name === $lastCondExpr->right->name
7363:	) {
7364:	$arrayArg = $lastCondExpr->left->getArgs()[0]->value;
7365:	$bodyScope = $bodyScope->assignExpression(
7366:	new ArrayDimFetch($lastCondExpr->left->getArgs()[0]->value, $lastCondExpr->right),
7367:	$bodyScope->getType($arrayArg)->getIterableValueType(),
7368:	$bodyScope->getNativeType($arrayArg)->getIterableValueType(),
7369:	);
7370:	}
7371:	}
7372:
7373:	return $bodyScope;
7374:	}
7375:
7376:	}
7377:

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