packages/deriver/tests/Unit/Deriver/Evaluator/Execution/Trace/ExplanationTest.php

1<?php
2
3declare (strict_types=1);
4
5namespace Tests\Unit\Deriver\Evaluator\Execution\Trace;
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\Evaluators;
14use Deriver\Deriver\Evaluator\Call\Extensions;
15use Deriver\Deriver\Evaluator\Call\Registrations;
16use Deriver\Deriver\Evaluator\Call\StateRegistry;
17use Deriver\Deriver\Evaluator\EvaluatorConfig;
18use Deriver\Deriver\Evaluator\Evidence\Frontier;
19use Deriver\Deriver\Evaluator\Execution\Call\ArgumentBinding;
20use Deriver\Deriver\Evaluator\Execution\Call\ArgumentOrder;
21use Deriver\Deriver\Evaluator\Execution\Call\TypeBinding;
22use Deriver\Deriver\Evaluator\Execution\Call\TypeCheck;
23use Deriver\Deriver\Evaluator\Execution\Completion\Alternative;
24use Deriver\Deriver\Evaluator\Execution\Completion\Assessment;
25use Deriver\Deriver\Evaluator\Execution\Completion\Completion;
26use Deriver\Deriver\Evaluator\Execution\Completion\StorageSnapshot;
27use Deriver\Deriver\Evaluator\Execution\Context;
28use Deriver\Deriver\Evaluator\Execution\Control\ObservationLimit;
29use Deriver\Deriver\Evaluator\Execution\Control\StateJoin;
30use Deriver\Deriver\Evaluator\Execution\Control\Unwinding;
31use Deriver\Deriver\Evaluator\Execution\Demand\Cell;
32use Deriver\Deriver\Evaluator\Execution\Demand\Components;
33use Deriver\Deriver\Evaluator\Execution\Demand\Discovery;
34use Deriver\Deriver\Evaluator\Execution\Demand\Key;
35use Deriver\Deriver\Evaluator\Execution\Demand\Table;
36use Deriver\Deriver\Evaluator\Execution\Dependencies;
37use Deriver\Deriver\Evaluator\Execution\Evaluator;
38use Deriver\Deriver\Evaluator\Execution\EvaluatorConfig as ExecutionEvaluatorConfig;
39use Deriver\Deriver\Evaluator\Execution\InstructionTransfer;
40use Deriver\Deriver\Evaluator\Execution\Memory\Materialization;
41use Deriver\Deriver\Evaluator\Execution\Memory\Memory;
42use Deriver\Deriver\Evaluator\Execution\Memory\Slots\SlotReference;
43use Deriver\Deriver\Evaluator\Execution\Memory\StorageCapture;
44use Deriver\Deriver\Evaluator\Execution\ObservationCollector;
45use Deriver\Deriver\Evaluator\Execution\Operation\Conversions;
46use Deriver\Deriver\Evaluator\Execution\Operation\ScalarErrors;
47use Deriver\Deriver\Evaluator\Execution\State;
48use Deriver\Deriver\Evaluator\Execution\Summary\CompletionRecord;
49use Deriver\Deriver\Evaluator\Execution\Summary\Evaluation;
50use Deriver\Deriver\Evaluator\Execution\Summary\Invocation;
51use Deriver\Deriver\Evaluator\Execution\Summary\Isolation;
52use Deriver\Deriver\Evaluator\Execution\Trace\Derivation;
53use Deriver\Deriver\Evaluator\Execution\Trace\Explanation;
54use Deriver\Deriver\Evaluator\Execution\Transfer\PureStep;
55use Deriver\Deriver\Evaluator\Execution\Transfer\ReferenceAssignment;
56use Deriver\Deriver\Evaluator\Request\Budget;
57use Deriver\Deriver\Evaluator\Request\EntryPoint;
58use Deriver\Deriver\Evaluator\Request\QueryScope;
59use Deriver\Deriver\Evaluator\Request\ReturnQuery;
60use Deriver\Deriver\Evaluator\Scalar\Identity;
61use Deriver\Deriver\Evaluator\Scalar\Operations;
62use Deriver\Deriver\Evaluator\TargetProfile;
63use Deriver\Deriver\Evaluator\Term;
64use Deriver\Deriver\Execution\DerivationResult;
65use Deriver\Deriver\Execution\QueryExecution;
66use Deriver\Deriver\Execution\ResultAssessment;
67use Deriver\Deriver\Identity\QueryEncoding;
68use Deriver\Deriver\Identity\ValueGraph;
69use Deriver\Deriver\Lowerer\Declaration\CallableIdentity;
70use Deriver\Deriver\Lowerer\Declaration\CallableSource;
71use Deriver\Deriver\Lowerer\Declaration\Index;
72use Deriver\Deriver\Lowerer\Declaration\Indexer;
73use Deriver\Deriver\Lowerer\Declaration\Traits\Composition;
74use Deriver\Deriver\Lowerer\ExpressionLowering;
75use Deriver\Deriver\Lowerer\Graph\BasicBlock;
76use Deriver\Deriver\Lowerer\Graph\CallableGraph;
77use Deriver\Deriver\Lowerer\Graph\Instruction;
78use Deriver\Deriver\Lowerer\Graph\Terminator;
79use Deriver\Deriver\Lowerer\Hierarchy\Dispatch;
80use Deriver\Deriver\Lowerer\InstructionEmitter;
81use Deriver\Deriver\Lowerer\Lowerer;
82use Deriver\Deriver\Lowerer\LoweringScope;
83use Deriver\Deriver\Lowerer\StatementLowering;
84use Deriver\Deriver\MicroEvaluatorConversion;
85use Deriver\Deriver\Parser\Node\File;
86use Deriver\Deriver\Parser\Parser;
87use Deriver\Deriver\Parser\ParserConfig;
88use Deriver\Deriver\Parser\TargetSyntax;
89use Deriver\Deriver\Providers\ProviderExpansion;
90use Deriver\Deriver\Resolver\AssignmentPatterns;
91use Deriver\Deriver\Resolver\ClassScope;
92use Deriver\Deriver\Resolver\ExpressionValidation;
93use Deriver\Deriver\Resolver\MagicContext;
94use Deriver\Deriver\Resolver\Resolver;
95use Deriver\Deriver\Selection\QueryValidation;
96use Deriver\Deriver\SnapshotIdentity;
97use Deriver\Deriver\Sources\LineMap;
98use Deriver\Deriver\Sources\Path;
99use Deriver\Deriver\Sources\Source;
100use Deriver\Deriver\Sources\SourceRef;
101use Deriver\Deriver\Sources\Sources;
102use Deriver\Exception\ParserException;
103use Deriver\Exception\ResolutionException;
104use PHPUnit\Framework\Attributes\CoversClass;
105use PHPUnit\Framework\Attributes\Small;
106use PHPUnit\Framework\Attributes\UsesClass;
107use PHPUnit\Framework\TestCase;
108
109#[UsesClass(Resolver::class)]
110#[UsesClass(ExpressionValidation::class)]
111#[UsesClass(ResolutionException::class)]
112#[UsesClass(ParserConfig::class)]
113#[UsesClass(ParserException::class)]
114#[CoversClass(Explanation::class)]
115#[UsesClass(QueryExecution::class)]
116#[UsesClass(QueryValidation::class)]
117#[UsesClass(ResultAssessment::class)]
118#[UsesClass(Deriver::class)]
119#[UsesClass(BasicBlock::class)]
120#[UsesClass(CallableGraph::class)]
121#[UsesClass(CallableIdentity::class)]
122#[UsesClass(Instruction::class)]
123#[UsesClass(Terminator::class)]
124#[UsesClass(ArgumentBinding::class)]
125#[UsesClass(ArgumentOrder::class)]
126#[UsesClass(Dispatch::class)]
127#[UsesClass(TypeBinding::class)]
128#[UsesClass(TypeCheck::class)]
129#[UsesClass(Completion::class)]
130#[UsesClass(Context::class)]
131#[UsesClass(ObservationLimit::class)]
132#[UsesClass(StateJoin::class)]
133#[UsesClass(Unwinding::class)]
134#[UsesClass(Cell::class)]
135#[UsesClass(Components::class)]
136#[UsesClass(Discovery::class)]
137#[UsesClass(Key::class)]
138#[UsesClass(Table::class)]
139#[UsesClass(Dependencies::class)]
140#[UsesClass(InstructionTransfer::class)]
141#[UsesClass(Evaluator::class)]
142#[UsesClass(SlotReference::class)]
143#[UsesClass(ObservationCollector::class)]
144#[UsesClass(Conversions::class)]
145#[UsesClass(ScalarErrors::class)]
146#[UsesClass(State::class)]
147#[UsesClass(CompletionRecord::class)]
148#[UsesClass(Evaluation::class)]
149#[UsesClass(Invocation::class)]
150#[UsesClass(Isolation::class)]
151#[UsesClass(PureStep::class)]
152#[UsesClass(ReferenceAssignment::class)]
153#[UsesClass(Materialization::class)]
154#[UsesClass(Memory::class)]
155#[UsesClass(StorageCapture::class)]
156#[UsesClass(Extensions::class)]
157#[UsesClass(ProviderExpansion::class)]
158#[UsesClass(Evaluators::class)]
159#[UsesClass(StateRegistry::class)]
160#[UsesClass(DeriverConfig::class)]
161#[UsesClass(EntryPoint::class)]
162#[UsesClass(Sources::class)]
163#[UsesClass(Path::class)]
164#[UsesClass(Snapshot::class)]
165#[UsesClass(Source::class)]
166#[UsesClass(TargetProfile::class)]
167#[UsesClass(Budget::class)]
168#[UsesClass(QueryScope::class)]
169#[UsesClass(ReturnQuery::class)]
170#[UsesClass(ResultRef::class)]
171#[UsesClass(SourceRef::class)]
172#[UsesClass(Alternative::class)]
173#[UsesClass(Assessment::class)]
174#[UsesClass(Derivation::class)]
175#[UsesClass(DerivationResult::class)]
176#[UsesClass(QueryEncoding::class)]
177#[UsesClass(ValueGraph::class)]
178#[UsesClass(Statistics::class)]
179#[UsesClass(StorageSnapshot::class)]
180#[UsesClass(Parser::class)]
181#[UsesClass(File::class)]
182#[UsesClass(Lowerer::class)]
183#[UsesClass(ExpressionLowering::class)]
184#[UsesClass(InstructionEmitter::class)]
185#[UsesClass(LoweringScope::class)]
186#[UsesClass(StatementLowering::class)]
187#[UsesClass(CallableSource::class)]
188#[UsesClass(Indexer::class)]
189#[UsesClass(Index::class)]
190#[UsesClass(Composition::class)]
191#[UsesClass(LineMap::class)]
192#[UsesClass(MagicContext::class)]
193#[UsesClass(AssignmentPatterns::class)]
194#[UsesClass(ClassScope::class)]
195#[UsesClass(TargetSyntax::class)]
196#[UsesClass(Identity::class)]
197#[UsesClass(Operations::class)]
198#[UsesClass(Term::class)]
199#[Small]
200final class ExplanationTest extends TestCase
201{
202    public function testPreservesItsSemanticContract(): void
203    {
204        $input = new Sources([new Source('fixture.php', '<?php function target(){return 42;}')]);
205        $configuration = new DeriverConfig();
206        $contributions = new Contributions();
207        $target = new TargetProfile($configuration->phpVersion, $configuration->integerBits, $configuration->floatPrecision);
208        $providers = new ProviderExpansion($input, array_map(Term::fromNative(...), $configuration->environment), $contributions);
209        $contributions1 = $providers->contributions;
210        $evaluators = new Evaluators(new TargetProfile($configuration->phpVersion, $configuration->integerBits, $configuration->floatPrecision), new Registrations($contributions1->evaluators, $contributions1->providers, $contributions1->domains, $contributions1->intrinsics, $contributions1->stateSlots), $configuration->standardEvaluators);
211        $settings = new EvaluatorConfig($target, $providers->environment, $configuration->standardEvaluators, array_map((new MicroEvaluatorConversion())->convert(...), $configuration->evaluators));
212        $identity = new SnapshotIdentity($providers->input, $settings, $evaluators, $providers->manifest);
213        $snapshotId = $identity->id;
214        $input1 = $providers->input;
215        $parser = new Parser(new ParserConfig($target->version));
216        $trees = array_map(static fn (Source $source): File => (new Resolver())->resolve($parser->parse(new Source(Path::normalize($source->path), $source->contents, $source->declarationsOnly))), iterator_to_array($input1, false));
217        $program = new Index($snapshotId, $trees);
218        $session = new QueryExecution($program, new ExecutionEvaluatorConfig($target, $providers->environment, $configuration->standardEvaluators), $evaluators, $identity->snapshot(array_map(Frontier::fromDiagnostic(...), $program->diagnostics())));
219        $result = $session->derive(new ReturnQuery('target'));
220        $explanation = new Explanation($result->evidence, $result->frontiers, $result->assumptions);
221        self::assertSame($result->evidence, $explanation->nodes);
222        self::assertSame($result->assumptions, $explanation->assumptions);
223    }
224}
225