packages/deriver/tests/Unit/Deriver/Evaluator/Builtin/ScalarFunctionsTest.php

1<?php
2
3declare (strict_types=1);
4
5namespace Tests\Unit\Deriver\Evaluator\Builtin;
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\Builtin\ArrayFunctions;
14use Deriver\Deriver\Evaluator\Builtin\ArrayMutation;
15use Deriver\Deriver\Evaluator\Builtin\Formatting;
16use Deriver\Deriver\Evaluator\Builtin\FunctionEvaluator;
17use Deriver\Deriver\Evaluator\Builtin\Library;
18use Deriver\Deriver\Evaluator\Builtin\Replacement;
19use Deriver\Deriver\Evaluator\Builtin\ScalarFunctions;
20use Deriver\Deriver\Evaluator\Builtin\Sorting;
21use Deriver\Deriver\Evaluator\Builtin\StringFunctions;
22use Deriver\Deriver\Evaluator\Builtin\TypePredicates;
23use Deriver\Deriver\Evaluator\Call\ArgumentBindings;
24use Deriver\Deriver\Evaluator\Call\BoundArgument;
25use Deriver\Deriver\Evaluator\Call\CallDecision;
26use Deriver\Deriver\Evaluator\Call\CallDescription;
27use Deriver\Deriver\Evaluator\Call\CallDescriptor;
28use Deriver\Deriver\Evaluator\Call\Evaluators;
29use Deriver\Deriver\Evaluator\Call\Extensions;
30use Deriver\Deriver\Evaluator\Call\Plan\Action;
31use Deriver\Deriver\Evaluator\Call\Plan\Expression;
32use Deriver\Deriver\Evaluator\Call\Plan\PlanActions;
33use Deriver\Deriver\Evaluator\Call\Plan\PlanCompiler;
34use Deriver\Deriver\Evaluator\Call\Plan\PlanFootprints;
35use Deriver\Deriver\Evaluator\Call\Plan\PlanValidation;
36use Deriver\Deriver\Evaluator\Call\Plan\SemanticPlan;
37use Deriver\Deriver\Evaluator\Call\Registrations;
38use Deriver\Deriver\Evaluator\Call\StateRegistry;
39use Deriver\Deriver\Evaluator\Declaration\Parameter as DeclarationParameter;
40use Deriver\Deriver\Evaluator\Declaration\Signature;
41use Deriver\Deriver\Evaluator\EvaluatorConfig;
42use Deriver\Deriver\Evaluator\Evidence\Frontier;
43use Deriver\Deriver\Evaluator\Execution\Call\ArgumentBinding;
44use Deriver\Deriver\Evaluator\Execution\Call\ArgumentOrder;
45use Deriver\Deriver\Evaluator\Execution\Call\CallableCheck;
46use Deriver\Deriver\Evaluator\Execution\Call\CallExecutor;
47use Deriver\Deriver\Evaluator\Execution\Call\CallResolution;
48use Deriver\Deriver\Evaluator\Execution\Call\Contract\Inputs;
49use Deriver\Deriver\Evaluator\Execution\Call\Contract\NativeArguments;
50use Deriver\Deriver\Evaluator\Execution\Call\ParameterBinding;
51use Deriver\Deriver\Evaluator\Execution\Call\PassedArgument;
52use Deriver\Deriver\Evaluator\Execution\Call\Preparation\Arguments;
53use Deriver\Deriver\Evaluator\Execution\Call\Preparation\Modes;
54use Deriver\Deriver\Evaluator\Execution\Call\Preparation\Resolution;
55use Deriver\Deriver\Evaluator\Execution\Call\Preparation\Target;
56use Deriver\Deriver\Evaluator\Execution\Call\Preparation\Transfer;
57use Deriver\Deriver\Evaluator\Execution\Call\TypeBinding;
58use Deriver\Deriver\Evaluator\Execution\Call\TypeCheck;
59use Deriver\Deriver\Evaluator\Execution\Completion\Alternative;
60use Deriver\Deriver\Evaluator\Execution\Completion\Assessment;
61use Deriver\Deriver\Evaluator\Execution\Completion\Completion;
62use Deriver\Deriver\Evaluator\Execution\Completion\StorageSnapshot;
63use Deriver\Deriver\Evaluator\Execution\Context;
64use Deriver\Deriver\Evaluator\Execution\Control\CollectionCalls;
65use Deriver\Deriver\Evaluator\Execution\Control\ObservationLimit;
66use Deriver\Deriver\Evaluator\Execution\Control\StateJoin;
67use Deriver\Deriver\Evaluator\Execution\Control\Unwinding;
68use Deriver\Deriver\Evaluator\Execution\Demand\Cell;
69use Deriver\Deriver\Evaluator\Execution\Demand\Components;
70use Deriver\Deriver\Evaluator\Execution\Demand\Discovery;
71use Deriver\Deriver\Evaluator\Execution\Demand\Key;
72use Deriver\Deriver\Evaluator\Execution\Demand\Table;
73use Deriver\Deriver\Evaluator\Execution\Dependencies;
74use Deriver\Deriver\Evaluator\Execution\Evaluator;
75use Deriver\Deriver\Evaluator\Execution\EvaluatorConfig as ExecutionEvaluatorConfig;
76use Deriver\Deriver\Evaluator\Execution\InstructionTransfer;
77use Deriver\Deriver\Evaluator\Execution\Memory\Location;
78use Deriver\Deriver\Evaluator\Execution\Memory\Materialization;
79use Deriver\Deriver\Evaluator\Execution\Memory\Memory;
80use Deriver\Deriver\Evaluator\Execution\Memory\Slots\SlotReference;
81use Deriver\Deriver\Evaluator\Execution\Memory\StorageCapture;
82use Deriver\Deriver\Evaluator\Execution\ObservationCollector;
83use Deriver\Deriver\Evaluator\Execution\Operation\Conversions;
84use Deriver\Deriver\Evaluator\Execution\Operation\ScalarErrors;
85use Deriver\Deriver\Evaluator\Execution\State;
86use Deriver\Deriver\Evaluator\Execution\Summary\CompletionRecord;
87use Deriver\Deriver\Evaluator\Execution\Summary\Evaluation;
88use Deriver\Deriver\Evaluator\Execution\Summary\Invocation;
89use Deriver\Deriver\Evaluator\Execution\Summary\Isolation;
90use Deriver\Deriver\Evaluator\Execution\Trace\Derivation;
91use Deriver\Deriver\Evaluator\Execution\Transfer\CallableTransfer;
92use Deriver\Deriver\Evaluator\Execution\Transfer\IntrinsicTransfer;
93use Deriver\Deriver\Evaluator\Execution\Transfer\MemoryStep;
94use Deriver\Deriver\Evaluator\Execution\Transfer\PureStep;
95use Deriver\Deriver\Evaluator\Execution\Transfer\ReferenceAssignment;
96use Deriver\Deriver\Evaluator\Request\Budget;
97use Deriver\Deriver\Evaluator\Request\EntryPoint;
98use Deriver\Deriver\Evaluator\Request\QueryScope;
99use Deriver\Deriver\Evaluator\Request\ReturnQuery;
100use Deriver\Deriver\Evaluator\Scalar\Arithmetic;
101use Deriver\Deriver\Evaluator\Scalar\Arrays;
102use Deriver\Deriver\Evaluator\Scalar\Comparison;
103use Deriver\Deriver\Evaluator\Scalar\FloatConversion;
104use Deriver\Deriver\Evaluator\Scalar\Identity;
105use Deriver\Deriver\Evaluator\Scalar\Operations;
106use Deriver\Deriver\Evaluator\TargetProfile;
107use Deriver\Deriver\Evaluator\Term;
108use Deriver\Deriver\Evaluator\TermKind;
109use Deriver\Deriver\Execution\DerivationResult;
110use Deriver\Deriver\Execution\QueryExecution;
111use Deriver\Deriver\Execution\ResultAssessment;
112use Deriver\Deriver\Identity\QueryEncoding;
113use Deriver\Deriver\Identity\ValueGraph;
114use Deriver\Deriver\Lowerer\AggregateLowering;
115use Deriver\Deriver\Lowerer\CallLowering;
116use Deriver\Deriver\Lowerer\Declaration\CallableIdentity;
117use Deriver\Deriver\Lowerer\Declaration\CallableSource;
118use Deriver\Deriver\Lowerer\Declaration\Index;
119use Deriver\Deriver\Lowerer\Declaration\Indexer;
120use Deriver\Deriver\Lowerer\Declaration\Traits\Composition;
121use Deriver\Deriver\Lowerer\EffectInspection;
122use Deriver\Deriver\Lowerer\ExpressionLowering;
123use Deriver\Deriver\Lowerer\Graph\Argument;
124use Deriver\Deriver\Lowerer\Graph\BasicBlock;
125use Deriver\Deriver\Lowerer\Graph\CallableGraph;
126use Deriver\Deriver\Lowerer\Graph\Instruction;
127use Deriver\Deriver\Lowerer\Graph\Parameter;
128use Deriver\Deriver\Lowerer\Graph\Terminator;
129use Deriver\Deriver\Lowerer\Hierarchy\Dispatch;
130use Deriver\Deriver\Lowerer\InstructionEmitter;
131use Deriver\Deriver\Lowerer\Lowerer;
132use Deriver\Deriver\Lowerer\LoweringScope;
133use Deriver\Deriver\Lowerer\StatementLowering;
134use Deriver\Deriver\MicroEvaluatorConversion;
135use Deriver\Deriver\Parser\Node\File;
136use Deriver\Deriver\Parser\Parser;
137use Deriver\Deriver\Parser\ParserConfig;
138use Deriver\Deriver\Parser\TargetSyntax;
139use Deriver\Deriver\Providers\ProviderExpansion;
140use Deriver\Deriver\Resolver\AssignmentPatterns;
141use Deriver\Deriver\Resolver\ClassScope;
142use Deriver\Deriver\Resolver\ExpressionValidation;
143use Deriver\Deriver\Resolver\MagicContext;
144use Deriver\Deriver\Resolver\Resolver;
145use Deriver\Deriver\Selection\QueryValidation;
146use Deriver\Deriver\SnapshotIdentity;
147use Deriver\Deriver\Sources\LineMap;
148use Deriver\Deriver\Sources\Path;
149use Deriver\Deriver\Sources\Source;
150use Deriver\Deriver\Sources\SourceRef;
151use Deriver\Deriver\Sources\Sources;
152use Deriver\Exception\ParserException;
153use Deriver\Exception\ResolutionException;
154use PHPUnit\Framework\Attributes\CoversClass;
155use PHPUnit\Framework\Attributes\DataProvider;
156use PHPUnit\Framework\Attributes\Small;
157use PHPUnit\Framework\Attributes\UsesClass;
158use PHPUnit\Framework\TestCase;
159
160#[UsesClass(Resolver::class)]
161#[UsesClass(ExpressionValidation::class)]
162#[UsesClass(ResolutionException::class)]
163#[UsesClass(ParserConfig::class)]
164#[UsesClass(ParserException::class)]
165#[CoversClass(ScalarFunctions::class)]
166#[UsesClass(QueryExecution::class)]
167#[UsesClass(QueryValidation::class)]
168#[UsesClass(ResultAssessment::class)]
169#[UsesClass(Deriver::class)]
170#[UsesClass(Argument::class)]
171#[UsesClass(BasicBlock::class)]
172#[UsesClass(CallableGraph::class)]
173#[UsesClass(CallableIdentity::class)]
174#[UsesClass(Instruction::class)]
175#[UsesClass(Parameter::class)]
176#[UsesClass(Terminator::class)]
177#[UsesClass(ArgumentBinding::class)]
178#[UsesClass(ArgumentOrder::class)]
179#[UsesClass(CallExecutor::class)]
180#[UsesClass(CallResolution::class)]
181#[UsesClass(CallableCheck::class)]
182#[UsesClass(Dispatch::class)]
183#[UsesClass(Inputs::class)]
184#[UsesClass(NativeArguments::class)]
185#[UsesClass(ParameterBinding::class)]
186#[UsesClass(PassedArgument::class)]
187#[UsesClass(Arguments::class)]
188#[UsesClass(Modes::class)]
189#[UsesClass(Resolution::class)]
190#[UsesClass(Target::class)]
191#[UsesClass(Transfer::class)]
192#[UsesClass(TypeBinding::class)]
193#[UsesClass(TypeCheck::class)]
194#[UsesClass(Completion::class)]
195#[UsesClass(Context::class)]
196#[UsesClass(CollectionCalls::class)]
197#[UsesClass(ObservationLimit::class)]
198#[UsesClass(StateJoin::class)]
199#[UsesClass(Unwinding::class)]
200#[UsesClass(Cell::class)]
201#[UsesClass(Components::class)]
202#[UsesClass(Discovery::class)]
203#[UsesClass(Key::class)]
204#[UsesClass(Table::class)]
205#[UsesClass(Dependencies::class)]
206#[UsesClass(InstructionTransfer::class)]
207#[UsesClass(Evaluator::class)]
208#[UsesClass(SlotReference::class)]
209#[UsesClass(ObservationCollector::class)]
210#[UsesClass(Conversions::class)]
211#[UsesClass(ScalarErrors::class)]
212#[UsesClass(State::class)]
213#[UsesClass(CompletionRecord::class)]
214#[UsesClass(Evaluation::class)]
215#[UsesClass(Invocation::class)]
216#[UsesClass(Isolation::class)]
217#[UsesClass(CallableTransfer::class)]
218#[UsesClass(IntrinsicTransfer::class)]
219#[UsesClass(MemoryStep::class)]
220#[UsesClass(PureStep::class)]
221#[UsesClass(ReferenceAssignment::class)]
222#[UsesClass(Location::class)]
223#[UsesClass(Materialization::class)]
224#[UsesClass(Memory::class)]
225#[UsesClass(StorageCapture::class)]
226#[UsesClass(ArgumentBindings::class)]
227#[UsesClass(BoundArgument::class)]
228#[UsesClass(ArrayFunctions::class)]
229#[UsesClass(ArrayMutation::class)]
230#[UsesClass(Formatting::class)]
231#[UsesClass(FunctionEvaluator::class)]
232#[UsesClass(Library::class)]
233#[UsesClass(Replacement::class)]
234#[UsesClass(Sorting::class)]
235#[UsesClass(StringFunctions::class)]
236#[UsesClass(TypePredicates::class)]
237#[UsesClass(CallDescription::class)]
238#[UsesClass(PlanActions::class)]
239#[UsesClass(PlanCompiler::class)]
240#[UsesClass(PlanFootprints::class)]
241#[UsesClass(PlanValidation::class)]
242#[UsesClass(CallDecision::class)]
243#[UsesClass(CallDescriptor::class)]
244#[UsesClass(Action::class)]
245#[UsesClass(Expression::class)]
246#[UsesClass(SemanticPlan::class)]
247#[UsesClass(Extensions::class)]
248#[UsesClass(ProviderExpansion::class)]
249#[UsesClass(Evaluators::class)]
250#[UsesClass(StateRegistry::class)]
251#[UsesClass(DeclarationParameter::class)]
252#[UsesClass(Signature::class)]
253#[UsesClass(DeriverConfig::class)]
254#[UsesClass(EntryPoint::class)]
255#[UsesClass(Sources::class)]
256#[UsesClass(Path::class)]
257#[UsesClass(Snapshot::class)]
258#[UsesClass(Source::class)]
259#[UsesClass(TargetProfile::class)]
260#[UsesClass(Budget::class)]
261#[UsesClass(QueryScope::class)]
262#[UsesClass(ReturnQuery::class)]
263#[UsesClass(ResultRef::class)]
264#[UsesClass(SourceRef::class)]
265#[UsesClass(Alternative::class)]
266#[UsesClass(Assessment::class)]
267#[UsesClass(Derivation::class)]
268#[UsesClass(DerivationResult::class)]
269#[UsesClass(QueryEncoding::class)]
270#[UsesClass(ValueGraph::class)]
271#[UsesClass(Statistics::class)]
272#[UsesClass(StorageSnapshot::class)]
273#[UsesClass(Parser::class)]
274#[UsesClass(File::class)]
275#[UsesClass(AggregateLowering::class)]
276#[UsesClass(CallLowering::class)]
277#[UsesClass(Lowerer::class)]
278#[UsesClass(EffectInspection::class)]
279#[UsesClass(ExpressionLowering::class)]
280#[UsesClass(InstructionEmitter::class)]
281#[UsesClass(LoweringScope::class)]
282#[UsesClass(StatementLowering::class)]
283#[UsesClass(CallableSource::class)]
284#[UsesClass(Indexer::class)]
285#[UsesClass(Index::class)]
286#[UsesClass(Composition::class)]
287#[UsesClass(LineMap::class)]
288#[UsesClass(MagicContext::class)]
289#[UsesClass(AssignmentPatterns::class)]
290#[UsesClass(ClassScope::class)]
291#[UsesClass(TargetSyntax::class)]
292#[UsesClass(Arithmetic::class)]
293#[UsesClass(Arrays::class)]
294#[UsesClass(Comparison::class)]
295#[UsesClass(FloatConversion::class)]
296#[UsesClass(Identity::class)]
297#[UsesClass(Operations::class)]
298#[UsesClass(Term::class)]
299#[Small]
300final class ScalarFunctionsTest extends TestCase
301{
302    public function testApplyPreservesTheSemanticContract(): void
303    {
304        $source = '<?php function target(){return array_reduce([1,2,3],fn($a,$b)=>$a+$b,0);}';
305        $symbol = 'target';
306        $input = new Sources([new Source('fixture.php', $source)]);
307        $configuration = new DeriverConfig();
308        $contributions = new Contributions();
309        $target = new TargetProfile($configuration->phpVersion, $configuration->integerBits, $configuration->floatPrecision);
310        $providers = new ProviderExpansion($input, array_map(Term::fromNative(...), $configuration->environment), $contributions);
311        $contributions1 = $providers->contributions;
312        $evaluators = new Evaluators(new TargetProfile($configuration->phpVersion, $configuration->integerBits, $configuration->floatPrecision), new Registrations($contributions1->evaluators, $contributions1->providers, $contributions1->domains, $contributions1->intrinsics, $contributions1->stateSlots), $configuration->standardEvaluators);
313        $settings = new EvaluatorConfig($target, $providers->environment, $configuration->standardEvaluators, array_map((new MicroEvaluatorConversion())->convert(...), $configuration->evaluators));
314        $identity = new SnapshotIdentity($providers->input, $settings, $evaluators, $providers->manifest);
315        $snapshotId = $identity->id;
316        $input1 = $providers->input;
317        $parser = new Parser(new ParserConfig($target->version));
318        $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));
319        $program = new Index($snapshotId, $trees);
320        $result = (new QueryExecution($program, new ExecutionEvaluatorConfig($target, $providers->environment, $configuration->standardEvaluators), $evaluators, $identity->snapshot(array_map(Frontier::fromDiagnostic(...), $program->diagnostics()))))->derive(new ReturnQuery($symbol));
321        self::assertSame(6, $result->normalOutcomes[0]->values['return']->native());
322        self::assertSame([], $result->frontiers);
323        self::assertSame([], $result->exceptionalOutcomes);
324    }
325    public function testClassNamePreservesRuntimeIdentityAndUnknownSubclasses(): void
326    {
327        $functions = new ScalarFunctions();
328        self::assertSame('Box', $functions->className(new Term(TermKind::Object, 'a', attributes: ['class' => 'Box']))->native());
329        self::assertSame('Closure', $functions->className(new Term(TermKind::Closure, 'b'))->native());
330        self::assertSame(TermKind::Intrinsic, $functions->className(new Term(TermKind::Parameter, 'value', attributes: ['type' => 'Box']))->kind);
331        self::assertSame(TermKind::Opaque, $functions->className(new Term(TermKind::Omitted))->kind);
332    }
333    /**
334     * @param string $name Registered intrinsic
335     * @param list<Term> $arguments Bound arguments
336     * @param mixed $expected Concrete result
337     */
338    #[DataProvider('providerIntrinsics')]
339    public function testApplyRoutesRegisteredIntrinsicsWithTheirBoundArguments(string $name, array $arguments, mixed $expected): void
340    {
341        self::assertSame($expected, (new ScalarFunctions())->apply($name, $arguments)->native());
342    }
343    /**
344     * @return iterable<string,array{string,list<Term>,mixed}>
345     */
346    public static function providerIntrinsics(): iterable
347    {
348        yield 'sort reindexes' => ['sort-values', [Term::fromNative(['b' => 3, 'a' => 1])], [1, 3]];
349        yield 'replacement pair' => ['replace-pair', [Term::constant('a'), Term::constant('x'), Term::constant('banana')], ['result' => 'bxnxnx', 'count' => 3]];
350        yield 'formatting variadic' => ['sprintf', [Term::constant('%s:%d%%'), Term::fromNative(['id', 7])], 'id:7%'];
351        yield 'runtime class' => ['get_class', [new Term(TermKind::Object, 'one', attributes: ['class' => 'App\Box'])], 'App\Box'];
352        yield 'predicate' => ['is_int', [Term::constant(7)], true];
353        yield 'default predicate operand' => ['is_null', [], true];
354        yield 'count' => ['count', [Term::fromNative(['a' => 1, 'b' => 2])], 2];
355        yield 'keys' => ['array_keys', [Term::fromNative(['a' => 1, 7 => 2])], ['a', 7]];
356        yield 'values' => ['array_values', [Term::fromNative(['a' => 1, 7 => 2])], [1, 2]];
357        yield 'shift record' => ['array_shift', [Term::fromNative(['k' => 1, 5 => 2])], ['array' => [2], 'result' => 1]];
358        yield 'unshift record' => ['array_unshift', [Term::fromNative([5 => 2]), Term::fromNative([1])], ['array' => [1, 2], 'result' => 2]];
359        yield 'first key' => ['array_key_first', [Term::fromNative(['a' => 1, 7 => 2])], 'a'];
360        yield 'slice' => ['array_slice', [Term::fromNative([1, 2, 3]), Term::constant(1), Term::constant(null), Term::constant(false)], [2, 3]];
361        yield 'merge variadic' => ['array_merge', [Term::fromNative([[7 => 1, 'x' => 2], [3, 'x' => 4]])], [1, 'x' => 4, 3]];
362        yield 'key existence' => ['array_key_exists', [Term::constant('x'), Term::fromNative(['x' => null])], true];
363        yield 'membership' => ['in_array', [Term::constant(3), Term::fromNative([2, 3]), Term::constant(true)], true];
364        yield 'length' => ['strlen', [Term::constant('bytes')], 5];
365        yield 'lowercase' => ['strtolower', [Term::constant('AbC')], 'abc'];
366        yield 'uppercase' => ['strtoupper', [Term::constant('AbC')], 'ABC'];
367        yield 'trim' => ['trim', [Term::constant(' x '), Term::constant(' ')], 'x'];
368        yield 'substring' => ['substr', [Term::constant('abcde'), Term::constant(1), Term::constant(3)], 'bcd'];
369        yield 'implode' => ['implode', [Term::constant(':'), Term::fromNative(['a', 'b'])], 'a:b'];
370        yield 'join alias' => ['join', [Term::constant('/'), Term::fromNative(['a', 'b'])], 'a/b'];
371        yield 'explode' => ['explode', [Term::constant(':'), Term::constant('a:b:c')], ['a', 'b', 'c']];
372    }
373    public function testApplyUnknownIntrinsicsRetainEveryInputDependency(): void
374    {
375        $arguments = [Term::constant('input'), Term::parameter('unknown')];
376        $result = (new ScalarFunctions())->apply('unregistered', $arguments);
377        self::assertSame(TermKind::Opaque, $result->kind);
378        self::assertSame('UNSUPPORTED_EVALUATOR_CASE', $result->literal);
379        self::assertSame($arguments, $result->operands);
380    }
381    /**
382     * @param Term $value Object identity
383     * @param string $expected Runtime class spelling
384     */
385    #[DataProvider('providerKnownClasses')]
386    public function testClassNamePreservesExactSpelling(Term $value, string $expected): void
387    {
388        $result = (new ScalarFunctions())->className($value);
389        self::assertSame($expected, $result->native());
390    }
391    /**
392     * @return iterable<string,array{Term,string}>
393     */
394    public static function providerKnownClasses(): iterable
395    {
396        yield 'object' => [new Term(TermKind::Object, 'one', attributes: ['class' => 'App\MiXeD']), 'App\MiXeD'];
397        yield 'enum' => [new Term(TermKind::Enum, 'App\Mode::Ready', attributes: ['class' => 'App\Mode']), 'App\Mode'];
398        yield 'closure' => [new Term(TermKind::Closure, 'body'), 'Closure'];
399    }
400    public function testClassNameRetainsUnknownRuntimeClassesAsDependentStringExpressions(): void
401    {
402        $input = new Term(TermKind::Parameter, 'object', attributes: ['type' => 'Base']);
403        $result = (new ScalarFunctions())->className($input);
404        self::assertSame(TermKind::Intrinsic, $result->kind);
405        self::assertSame('get_class', $result->literal);
406        self::assertSame([$input], $result->operands);
407        self::assertSame('string', $result->attributes['type']);
408    }
409}
410