packages/deriver/tests/Unit/Deriver/Evaluator/Execution/Call/Closure/BindingTest.php

1<?php
2
3declare (strict_types=1);
4
5namespace Tests\Unit\Deriver\Evaluator\Execution\Call\Closure;
6
7use Deriver\Deriver;
8use Deriver\Deriver\Candidate\ResultRef;
9use Deriver\Deriver\Candidate\Snapshot;
10use Deriver\Deriver\Candidate\Statistics;
11use Deriver\Deriver\Contributions;
12use Deriver\Deriver\DeriverConfig;
13use Deriver\Deriver\Evaluator\Call\BoundInstruction;
14use Deriver\Deriver\Evaluator\Call\Evaluators;
15use Deriver\Deriver\Evaluator\Call\Extensions;
16use Deriver\Deriver\Evaluator\Call\Provider\DispatchDecision;
17use Deriver\Deriver\Evaluator\Call\Registrations;
18use Deriver\Deriver\Evaluator\Call\StateRegistry;
19use Deriver\Deriver\Evaluator\EvaluatorConfig;
20use Deriver\Deriver\Evaluator\Evidence\Frontier;
21use Deriver\Deriver\Evaluator\Execution\Call\Allocation;
22use Deriver\Deriver\Evaluator\Execution\Call\ArgumentBinding;
23use Deriver\Deriver\Evaluator\Execution\Call\ArgumentOrder;
24use Deriver\Deriver\Evaluator\Execution\Call\CallableCheck;
25use Deriver\Deriver\Evaluator\Execution\Call\CallExecutor;
26use Deriver\Deriver\Evaluator\Execution\Call\CallResolution;
27use Deriver\Deriver\Evaluator\Execution\Call\Closure\Binding;
28use Deriver\Deriver\Evaluator\Execution\Call\Closure\Capture;
29use Deriver\Deriver\Evaluator\Execution\Call\Creation\Access;
30use Deriver\Deriver\Evaluator\Execution\Call\Member\Invocation;
31use Deriver\Deriver\Evaluator\Execution\Call\MethodInvocation;
32use Deriver\Deriver\Evaluator\Execution\Call\Native\Invocation as NativeInvocation;
33use Deriver\Deriver\Evaluator\Execution\Call\Native\Signatures;
34use Deriver\Deriver\Evaluator\Execution\Call\ParameterBinding;
35use Deriver\Deriver\Evaluator\Execution\Call\PassedArgument;
36use Deriver\Deriver\Evaluator\Execution\Call\Preparation\Arguments;
37use Deriver\Deriver\Evaluator\Execution\Call\Preparation\Creation;
38use Deriver\Deriver\Evaluator\Execution\Call\Preparation\Methods;
39use Deriver\Deriver\Evaluator\Execution\Call\Preparation\Modes;
40use Deriver\Deriver\Evaluator\Execution\Call\Preparation\Resolution;
41use Deriver\Deriver\Evaluator\Execution\Call\Preparation\Target;
42use Deriver\Deriver\Evaluator\Execution\Call\Preparation\Transfer;
43use Deriver\Deriver\Evaluator\Execution\Call\TypeBinding;
44use Deriver\Deriver\Evaluator\Execution\Call\TypeCheck;
45use Deriver\Deriver\Evaluator\Execution\Completion\Alternative;
46use Deriver\Deriver\Evaluator\Execution\Completion\Assessment;
47use Deriver\Deriver\Evaluator\Execution\Completion\Completion;
48use Deriver\Deriver\Evaluator\Execution\Completion\StorageSnapshot;
49use Deriver\Deriver\Evaluator\Execution\Constant\ClassNames;
50use Deriver\Deriver\Evaluator\Execution\Context;
51use Deriver\Deriver\Evaluator\Execution\Control\ObservationLimit;
52use Deriver\Deriver\Evaluator\Execution\Control\StateJoin;
53use Deriver\Deriver\Evaluator\Execution\Control\Unwinding;
54use Deriver\Deriver\Evaluator\Execution\Demand\Discovery;
55use Deriver\Deriver\Evaluator\Execution\Dependencies;
56use Deriver\Deriver\Evaluator\Execution\Evaluator;
57use Deriver\Deriver\Evaluator\Execution\EvaluatorConfig as ExecutionEvaluatorConfig;
58use Deriver\Deriver\Evaluator\Execution\InstructionTransfer;
59use Deriver\Deriver\Evaluator\Execution\Memory\Location;
60use Deriver\Deriver\Evaluator\Execution\Memory\Materialization;
61use Deriver\Deriver\Evaluator\Execution\Memory\Memory;
62use Deriver\Deriver\Evaluator\Execution\Memory\ReferenceConstraint;
63use Deriver\Deriver\Evaluator\Execution\Memory\Slots\SlotReference;
64use Deriver\Deriver\Evaluator\Execution\Memory\Slots\StateStorage;
65use Deriver\Deriver\Evaluator\Execution\Memory\StorageCapture;
66use Deriver\Deriver\Evaluator\Execution\ObservationCollector;
67use Deriver\Deriver\Evaluator\Execution\Operation\Conversions;
68use Deriver\Deriver\Evaluator\Execution\Operation\ScalarErrors;
69use Deriver\Deriver\Evaluator\Execution\State;
70use Deriver\Deriver\Evaluator\Execution\Summary\Evaluation;
71use Deriver\Deriver\Evaluator\Execution\Summary\Isolation;
72use Deriver\Deriver\Evaluator\Execution\Trace\Derivation;
73use Deriver\Deriver\Evaluator\Execution\Transfer\MemoryStep;
74use Deriver\Deriver\Evaluator\Execution\Transfer\ObjectAccess;
75use Deriver\Deriver\Evaluator\Execution\Transfer\PropertyAccessCheck;
76use Deriver\Deriver\Evaluator\Execution\Transfer\PropertyLookup;
77use Deriver\Deriver\Evaluator\Execution\Transfer\PropertySlot;
78use Deriver\Deriver\Evaluator\Execution\Transfer\PropertyTransfer;
79use Deriver\Deriver\Evaluator\Execution\Transfer\PureStep;
80use Deriver\Deriver\Evaluator\Execution\Transfer\ReferenceAssignment;
81use Deriver\Deriver\Evaluator\Request\Budget;
82use Deriver\Deriver\Evaluator\Request\EntryPoint;
83use Deriver\Deriver\Evaluator\Request\QueryScope;
84use Deriver\Deriver\Evaluator\Request\ReturnQuery;
85use Deriver\Deriver\Evaluator\Scalar\Arrays;
86use Deriver\Deriver\Evaluator\Scalar\Identity;
87use Deriver\Deriver\Evaluator\Scalar\Operations;
88use Deriver\Deriver\Evaluator\TargetProfile;
89use Deriver\Deriver\Evaluator\Term;
90use Deriver\Deriver\Evaluator\TermKind;
91use Deriver\Deriver\Execution\DerivationResult;
92use Deriver\Deriver\Execution\QueryExecution;
93use Deriver\Deriver\Execution\ResultAssessment;
94use Deriver\Deriver\Identity\QueryEncoding;
95use Deriver\Deriver\Identity\ValueGraph;
96use Deriver\Deriver\Lowerer\AggregateLowering;
97use Deriver\Deriver\Lowerer\AssignmentLowering;
98use Deriver\Deriver\Lowerer\CallLowering;
99use Deriver\Deriver\Lowerer\Control\DestructuringLowering;
100use Deriver\Deriver\Lowerer\Declaration\CallableIdentity;
101use Deriver\Deriver\Lowerer\Declaration\CallableSource;
102use Deriver\Deriver\Lowerer\Declaration\ConstantSignatures;
103use Deriver\Deriver\Lowerer\Declaration\Index;
104use Deriver\Deriver\Lowerer\Declaration\Indexer;
105use Deriver\Deriver\Lowerer\Declaration\Metadata\ClassDeclaration;
106use Deriver\Deriver\Lowerer\Declaration\Metadata\PropertyDeclaration;
107use Deriver\Deriver\Lowerer\Declaration\Traits\Composition;
108use Deriver\Deriver\Lowerer\ExpressionLowering;
109use Deriver\Deriver\Lowerer\Graph\Argument;
110use Deriver\Deriver\Lowerer\Graph\BasicBlock;
111use Deriver\Deriver\Lowerer\Graph\CallableGraph;
112use Deriver\Deriver\Lowerer\Graph\Instruction;
113use Deriver\Deriver\Lowerer\Graph\Parameter;
114use Deriver\Deriver\Lowerer\Graph\Terminator;
115use Deriver\Deriver\Lowerer\Hierarchy\Access as HierarchyAccess;
116use Deriver\Deriver\Lowerer\Hierarchy\Dispatch;
117use Deriver\Deriver\Lowerer\InstructionEmitter;
118use Deriver\Deriver\Lowerer\Lowerer;
119use Deriver\Deriver\Lowerer\LoweringScope;
120use Deriver\Deriver\Lowerer\StatementLowering;
121use Deriver\Deriver\MicroEvaluatorConversion;
122use Deriver\Deriver\Parser\Node\File;
123use Deriver\Deriver\Parser\Parser;
124use Deriver\Deriver\Parser\ParserConfig;
125use Deriver\Deriver\Parser\TargetSyntax;
126use Deriver\Deriver\Providers\ProviderExpansion;
127use Deriver\Deriver\Resolver\AssignmentPatterns;
128use Deriver\Deriver\Resolver\ClassScope;
129use Deriver\Deriver\Resolver\ExpressionValidation;
130use Deriver\Deriver\Resolver\MagicContext;
131use Deriver\Deriver\Resolver\Resolver;
132use Deriver\Deriver\Selection\QueryValidation;
133use Deriver\Deriver\SnapshotIdentity;
134use Deriver\Deriver\Sources\LineMap;
135use Deriver\Deriver\Sources\Path;
136use Deriver\Deriver\Sources\Source;
137use Deriver\Deriver\Sources\SourceRef;
138use Deriver\Deriver\Sources\Sources;
139use Deriver\Exception\ParserException;
140use Deriver\Exception\ResolutionException;
141use PHPUnit\Framework\Attributes\CoversClass;
142use PHPUnit\Framework\Attributes\Small;
143use PHPUnit\Framework\Attributes\UsesClass;
144use PHPUnit\Framework\TestCase;
145
146/**
147 * @covers \Deriver\Deriver\Evaluator\Execution\Call\Closure\Binding
148 */
149#[UsesClass(Resolver::class)]
150#[UsesClass(ExpressionValidation::class)]
151#[UsesClass(ResolutionException::class)]
152#[UsesClass(ParserConfig::class)]
153#[UsesClass(ParserException::class)]
154#[CoversClass(Binding::class)]
155#[UsesClass(QueryExecution::class)]
156#[UsesClass(QueryValidation::class)]
157#[UsesClass(ResultAssessment::class)]
158#[UsesClass(Deriver::class)]
159#[UsesClass(Argument::class)]
160#[UsesClass(BasicBlock::class)]
161#[UsesClass(CallableGraph::class)]
162#[UsesClass(CallableIdentity::class)]
163#[UsesClass(ClassDeclaration::class)]
164#[UsesClass(Instruction::class)]
165#[UsesClass(Parameter::class)]
166#[UsesClass(PropertyDeclaration::class)]
167#[UsesClass(Terminator::class)]
168#[UsesClass(Allocation::class)]
169#[UsesClass(ArgumentBinding::class)]
170#[UsesClass(ArgumentOrder::class)]
171#[UsesClass(CallExecutor::class)]
172#[UsesClass(CallResolution::class)]
173#[UsesClass(CallableCheck::class)]
174#[UsesClass(Capture::class)]
175#[UsesClass(Access::class)]
176#[UsesClass(Dispatch::class)]
177#[UsesClass(HierarchyAccess::class)]
178#[UsesClass(Invocation::class)]
179#[UsesClass(MethodInvocation::class)]
180#[UsesClass(NativeInvocation::class)]
181#[UsesClass(Signatures::class)]
182#[UsesClass(ParameterBinding::class)]
183#[UsesClass(PassedArgument::class)]
184#[UsesClass(Arguments::class)]
185#[UsesClass(Creation::class)]
186#[UsesClass(Methods::class)]
187#[UsesClass(Modes::class)]
188#[UsesClass(Resolution::class)]
189#[UsesClass(Target::class)]
190#[UsesClass(Transfer::class)]
191#[UsesClass(TypeBinding::class)]
192#[UsesClass(TypeCheck::class)]
193#[UsesClass(Completion::class)]
194#[UsesClass(ClassNames::class)]
195#[UsesClass(Context::class)]
196#[UsesClass(ObservationLimit::class)]
197#[UsesClass(StateJoin::class)]
198#[UsesClass(Unwinding::class)]
199#[UsesClass(Discovery::class)]
200#[UsesClass(Dependencies::class)]
201#[UsesClass(InstructionTransfer::class)]
202#[UsesClass(Evaluator::class)]
203#[UsesClass(SlotReference::class)]
204#[UsesClass(StateStorage::class)]
205#[UsesClass(ObservationCollector::class)]
206#[UsesClass(Conversions::class)]
207#[UsesClass(ScalarErrors::class)]
208#[UsesClass(State::class)]
209#[UsesClass(Evaluation::class)]
210#[UsesClass(Isolation::class)]
211#[UsesClass(MemoryStep::class)]
212#[UsesClass(ObjectAccess::class)]
213#[UsesClass(PropertyAccessCheck::class)]
214#[UsesClass(PropertyLookup::class)]
215#[UsesClass(PropertySlot::class)]
216#[UsesClass(PropertyTransfer::class)]
217#[UsesClass(PureStep::class)]
218#[UsesClass(ReferenceAssignment::class)]
219#[UsesClass(Location::class)]
220#[UsesClass(Materialization::class)]
221#[UsesClass(Memory::class)]
222#[UsesClass(ReferenceConstraint::class)]
223#[UsesClass(StorageCapture::class)]
224#[UsesClass(DispatchDecision::class)]
225#[UsesClass(Extensions::class)]
226#[UsesClass(ProviderExpansion::class)]
227#[UsesClass(Evaluators::class)]
228#[UsesClass(StateRegistry::class)]
229#[UsesClass(DeriverConfig::class)]
230#[UsesClass(EntryPoint::class)]
231#[UsesClass(Sources::class)]
232#[UsesClass(Path::class)]
233#[UsesClass(Snapshot::class)]
234#[UsesClass(Source::class)]
235#[UsesClass(TargetProfile::class)]
236#[UsesClass(Budget::class)]
237#[UsesClass(QueryScope::class)]
238#[UsesClass(ReturnQuery::class)]
239#[UsesClass(ResultRef::class)]
240#[UsesClass(SourceRef::class)]
241#[UsesClass(Alternative::class)]
242#[UsesClass(Assessment::class)]
243#[UsesClass(Derivation::class)]
244#[UsesClass(DerivationResult::class)]
245#[UsesClass(QueryEncoding::class)]
246#[UsesClass(ValueGraph::class)]
247#[UsesClass(Statistics::class)]
248#[UsesClass(StorageSnapshot::class)]
249#[UsesClass(Parser::class)]
250#[UsesClass(File::class)]
251#[UsesClass(AggregateLowering::class)]
252#[UsesClass(AssignmentLowering::class)]
253#[UsesClass(CallLowering::class)]
254#[UsesClass(Lowerer::class)]
255#[UsesClass(DestructuringLowering::class)]
256#[UsesClass(ExpressionLowering::class)]
257#[UsesClass(InstructionEmitter::class)]
258#[UsesClass(LoweringScope::class)]
259#[UsesClass(StatementLowering::class)]
260#[UsesClass(ConstantSignatures::class)]
261#[UsesClass(CallableSource::class)]
262#[UsesClass(Indexer::class)]
263#[UsesClass(Index::class)]
264#[UsesClass(Composition::class)]
265#[UsesClass(LineMap::class)]
266#[UsesClass(MagicContext::class)]
267#[UsesClass(AssignmentPatterns::class)]
268#[UsesClass(ClassScope::class)]
269#[UsesClass(TargetSyntax::class)]
270#[UsesClass(Arrays::class)]
271#[UsesClass(Identity::class)]
272#[UsesClass(Operations::class)]
273#[UsesClass(Term::class)]
274#[Small]
275final class BindingTest extends TestCase
276{
277    public function testScopeKeepsCallerCoercionModeAndCapturedAccessRights(): void
278    {
279        $source = '<?php function target(){return 1;}';
280        $budget = new Budget();
281        $configuration = new DeriverConfig();
282        $contributions = new Contributions();
283        $input = new Sources([new Source('fixture.php', $source)]);
284        $target = new TargetProfile($configuration->phpVersion, $configuration->integerBits, $configuration->floatPrecision);
285        $providers = new ProviderExpansion($input, array_map(Term::fromNative(...), $configuration->environment), $contributions);
286        $contributions1 = $providers->contributions;
287        $evaluators = new Evaluators(new TargetProfile($configuration->phpVersion, $configuration->integerBits, $configuration->floatPrecision), new Registrations($contributions1->evaluators, $contributions1->providers, $contributions1->domains, $contributions1->intrinsics, $contributions1->stateSlots), $configuration->standardEvaluators);
288        $settings = new EvaluatorConfig($target, $providers->environment, $configuration->standardEvaluators, array_map((new MicroEvaluatorConversion())->convert(...), $configuration->evaluators));
289        $identity = new SnapshotIdentity($providers->input, $settings, $evaluators, $providers->manifest);
290        $snapshotId = $identity->id;
291        $input1 = $providers->input;
292        $parser = new Parser(new ParserConfig($target->version));
293        $trees = array_map(static fn (Source $source1): File => (new Resolver())->resolve($parser->parse(new Source(Path::normalize($source1->path), $source1->contents, $source1->declarationsOnly))), iterator_to_array($input1, false));
294        $program1 = new Index($snapshotId, $trees);
295        $execution = new QueryExecution($program1, new ExecutionEvaluatorConfig($target, $providers->environment, $configuration->standardEvaluators), $evaluators, $identity->snapshot(array_map(Frontier::fromDiagnostic(...), $program1->diagnostics())));
296        $snapshotId1 = 'test';
297        $input2 = new Sources([new Source('fixture.php', $source)]);
298        $profile = $execution->configuration->target;
299        $parser1 = new Parser(new ParserConfig($profile->version));
300        $trees1 = array_map(static fn (Source $source2): File => (new Resolver())->resolve($parser1->parse(new Source(Path::normalize($source2->path), $source2->contents, $source2->declarationsOnly))), iterator_to_array($input2, false));
301        $program = new Index($snapshotId1, $trees1);
302        $context = new Context($program, new ReturnQuery('target', budget: $budget), $execution->configuration, $execution->evaluators);
303        $body = $context->program->callable('target');
304        self::assertNotNull($body);
305        $machine = new Evaluator($context);
306        $state = new State();
307        $instruction = new BoundInstruction('arg', 'argument', $body->source, 'result', ['prepared', 'input']);
308        $caller = new CallableGraph('caller', [], [], $body->source, strict: true, className: 'Outside');
309        $scope = (new Binding($machine))->scope(new Term(TermKind::Closure, attributes: ['scope' => 'Inside']), $caller);
310        self::assertSame('Inside', $scope->className);
311        self::assertTrue($scope->strict);
312    }
313    public function testStateRestoresCapturedThisWithoutChangingTheInvokingFrame(): void
314    {
315        $source = '<?php function target(){return 1;}';
316        $budget = new Budget();
317        $configuration = new DeriverConfig();
318        $contributions = new Contributions();
319        $input = new Sources([new Source('fixture.php', $source)]);
320        $target = new TargetProfile($configuration->phpVersion, $configuration->integerBits, $configuration->floatPrecision);
321        $providers = new ProviderExpansion($input, array_map(Term::fromNative(...), $configuration->environment), $contributions);
322        $contributions1 = $providers->contributions;
323        $evaluators = new Evaluators(new TargetProfile($configuration->phpVersion, $configuration->integerBits, $configuration->floatPrecision), new Registrations($contributions1->evaluators, $contributions1->providers, $contributions1->domains, $contributions1->intrinsics, $contributions1->stateSlots), $configuration->standardEvaluators);
324        $settings = new EvaluatorConfig($target, $providers->environment, $configuration->standardEvaluators, array_map((new MicroEvaluatorConversion())->convert(...), $configuration->evaluators));
325        $identity = new SnapshotIdentity($providers->input, $settings, $evaluators, $providers->manifest);
326        $snapshotId = $identity->id;
327        $input1 = $providers->input;
328        $parser = new Parser(new ParserConfig($target->version));
329        $trees = array_map(static fn (Source $source1): File => (new Resolver())->resolve($parser->parse(new Source(Path::normalize($source1->path), $source1->contents, $source1->declarationsOnly))), iterator_to_array($input1, false));
330        $program1 = new Index($snapshotId, $trees);
331        $execution = new QueryExecution($program1, new ExecutionEvaluatorConfig($target, $providers->environment, $configuration->standardEvaluators), $evaluators, $identity->snapshot(array_map(Frontier::fromDiagnostic(...), $program1->diagnostics())));
332        $snapshotId1 = 'test';
333        $input2 = new Sources([new Source('fixture.php', $source)]);
334        $profile = $execution->configuration->target;
335        $parser1 = new Parser(new ParserConfig($profile->version));
336        $trees1 = array_map(static fn (Source $source2): File => (new Resolver())->resolve($parser1->parse(new Source(Path::normalize($source2->path), $source2->contents, $source2->declarationsOnly))), iterator_to_array($input2, false));
337        $program = new Index($snapshotId1, $trees1);
338        $context = new Context($program, new ReturnQuery('target', budget: $budget), $execution->configuration, $execution->evaluators);
339        $body = $context->program->callable('target');
340        self::assertNotNull($body);
341        $machine = new Evaluator($context);
342        $state = new State();
343        $instruction = new BoundInstruction('arg', 'argument', $body->source, 'result', ['prepared', 'input']);
344        $original = $state->local('this');
345        $state->memory->write($original, new Term(TermKind::Object, 'outside', attributes: ['class' => 'Outside']));
346        $captured = new Term(TermKind::Object, 'inside', attributes: ['class' => 'Inside']);
347        $closure = new Term(TermKind::Closure, operands: ['this' => $captured], attributes: ['late-static' => 'Inside']);
348        $bound = (new Binding($machine))->state($closure, $state);
349        self::assertSame('inside', $bound->memory->read($bound->locals['this'])->literal);
350        self::assertSame('outside', $state->memory->read($original)->literal);
351        self::assertSame('Inside', $bound->lateStaticClass);
352    }
353    public function testSignaturePreservesPrivateReferenceParametersAfterEscape(): void
354    {
355        $source = '<?php class Box{private function set(&$x){$x=2;}function callback(){return $this->set(...);}}function target(){$f=(new Box)->callback();$f($a);return $a;}';
356        $symbol = 'target';
357        $input = new Sources([new Source('fixture.php', $source)]);
358        $configuration = new DeriverConfig();
359        $contributions = new Contributions();
360        $target = new TargetProfile($configuration->phpVersion, $configuration->integerBits, $configuration->floatPrecision);
361        $providers = new ProviderExpansion($input, array_map(Term::fromNative(...), $configuration->environment), $contributions);
362        $contributions1 = $providers->contributions;
363        $evaluators = new Evaluators(new TargetProfile($configuration->phpVersion, $configuration->integerBits, $configuration->floatPrecision), new Registrations($contributions1->evaluators, $contributions1->providers, $contributions1->domains, $contributions1->intrinsics, $contributions1->stateSlots), $configuration->standardEvaluators);
364        $settings = new EvaluatorConfig($target, $providers->environment, $configuration->standardEvaluators, array_map((new MicroEvaluatorConversion())->convert(...), $configuration->evaluators));
365        $identity = new SnapshotIdentity($providers->input, $settings, $evaluators, $providers->manifest);
366        $snapshotId = $identity->id;
367        $input1 = $providers->input;
368        $parser = new Parser(new ParserConfig($target->version));
369        $trees = array_map(static fn (Source $source1): File => (new Resolver())->resolve($parser->parse(new Source(Path::normalize($source1->path), $source1->contents, $source1->declarationsOnly))), iterator_to_array($input1, false));
370        $program = new Index($snapshotId, $trees);
371        $result = (new QueryExecution($program, new ExecutionEvaluatorConfig($target, $providers->environment, $configuration->standardEvaluators), $evaluators, $identity->snapshot(array_map(Frontier::fromDiagnostic(...), $program->diagnostics()))))->derive(new ReturnQuery($symbol));
372        self::assertSame(2, $result->normalOutcomes[0]->values['return']->native());
373        self::assertSame([], array_column($result->frontiers, 'code'));
374        self::assertSame([], $result->exceptionalOutcomes);
375    }
376    public function testInvokeRestoresTheCallingObjectAndLateStaticContext(): void
377    {
378        $source = '<?php class A{public $x=1;function value(){return $this->x;}function callback(){return self::value(...);}}class B{public $x=2;function run($f){return [$f(),$this->x];}}function target(){$f=(new A)->callback();return (new B)->run($f);}';
379        $symbol = 'target';
380        $input = new Sources([new Source('fixture.php', $source)]);
381        $configuration = new DeriverConfig();
382        $contributions = new Contributions();
383        $target = new TargetProfile($configuration->phpVersion, $configuration->integerBits, $configuration->floatPrecision);
384        $providers = new ProviderExpansion($input, array_map(Term::fromNative(...), $configuration->environment), $contributions);
385        $contributions1 = $providers->contributions;
386        $evaluators = new Evaluators(new TargetProfile($configuration->phpVersion, $configuration->integerBits, $configuration->floatPrecision), new Registrations($contributions1->evaluators, $contributions1->providers, $contributions1->domains, $contributions1->intrinsics, $contributions1->stateSlots), $configuration->standardEvaluators);
387        $settings = new EvaluatorConfig($target, $providers->environment, $configuration->standardEvaluators, array_map((new MicroEvaluatorConversion())->convert(...), $configuration->evaluators));
388        $identity = new SnapshotIdentity($providers->input, $settings, $evaluators, $providers->manifest);
389        $snapshotId = $identity->id;
390        $input1 = $providers->input;
391        $parser = new Parser(new ParserConfig($target->version));
392        $trees = array_map(static fn (Source $source1): File => (new Resolver())->resolve($parser->parse(new Source(Path::normalize($source1->path), $source1->contents, $source1->declarationsOnly))), iterator_to_array($input1, false));
393        $program = new Index($snapshotId, $trees);
394        $result = (new QueryExecution($program, new ExecutionEvaluatorConfig($target, $providers->environment, $configuration->standardEvaluators), $evaluators, $identity->snapshot(array_map(Frontier::fromDiagnostic(...), $program->diagnostics()))))->derive(new ReturnQuery($symbol));
395        self::assertSame([1, 2], $result->normalOutcomes[0]->values['return']->native());
396        self::assertSame([], array_column($result->frontiers, 'code'));
397        self::assertSame([], $result->exceptionalOutcomes);
398    }
399}
400