packages/deriver/tests/Unit/Deriver/Evaluator/Recurrence/IterationTest.php

1<?php
2
3declare (strict_types=1);
4
5namespace Tests\Unit\Deriver\Evaluator\Recurrence;
6
7use Deriver\Deriver\Contributions;
8use Deriver\Deriver\DeriverConfig;
9use Deriver\Deriver\Evaluator\Call\Evaluators;
10use Deriver\Deriver\Evaluator\Call\Registrations;
11use Deriver\Deriver\Evaluator\Enumeration\Choices;
12use Deriver\Deriver\Evaluator\Evaluator;
13use Deriver\Deriver\Evaluator\EvaluatorConfig;
14use Deriver\Deriver\Evaluator\Index\DefinitionIndex;
15use Deriver\Deriver\Evaluator\Request\Budget;
16use Deriver\Deriver\Evaluator\Scalar\Identity;
17use Deriver\Deriver\Evaluator\Scope\Context;
18use Deriver\Deriver\Evaluator\Scope\Frame;
19use Deriver\Deriver\Evaluator\TargetProfile;
20use Deriver\Deriver\Evaluator\Term;
21use Deriver\Deriver\Lowerer\Declaration\Index;
22use Deriver\Deriver\MicroEvaluatorConversion;
23use Deriver\Deriver\Parser\Node\File;
24use Deriver\Deriver\Parser\Parser;
25use Deriver\Deriver\Parser\ParserConfig;
26use Deriver\Deriver\Providers\ProviderExpansion;
27use Deriver\Deriver\Resolver\Resolver;
28use Deriver\Deriver\Sources\Path;
29use Deriver\Deriver\Sources\Source;
30use Deriver\Deriver\Sources\Sources;
31use PHPUnit\Framework\Attributes\CoversNothing;
32use PHPUnit\Framework\TestCase;
33
34#[CoversNothing]
35final class IterationTest extends TestCase
36{
37    public function testValueInAnEvaluatorPlanUsesFiniteKeysAndValues(): void
38    {
39        $source = 'function target(){$s="";foreach(["a"=>"x","b"=>"y"] as $k=>$v){$s.=$k.$v;}return $s;}';
40        $configuration = new DeriverConfig();
41        $budget = new Budget();
42        $contributions = new Contributions();
43        $target = new TargetProfile($configuration->phpVersion, $configuration->integerBits, $configuration->floatPrecision);
44        $providers = new ProviderExpansion(new Sources([new Source('candidate.php', '<?php ' . $source)]), array_map(Term::fromNative(...), $configuration->environment), $contributions);
45        $contributions1 = $providers->contributions;
46        $evaluators = new Evaluators(new TargetProfile($configuration->phpVersion, $configuration->integerBits, $configuration->floatPrecision), new Registrations($contributions1->evaluators, $contributions1->providers, $contributions1->domains, $contributions1->intrinsics, $contributions1->stateSlots), $configuration->standardEvaluators);
47        $settings = new EvaluatorConfig($target, $providers->environment, $configuration->standardEvaluators, array_map((new MicroEvaluatorConversion())->convert(...), $configuration->evaluators));
48        $snapshotId = 'test';
49        $input = $providers->input;
50        $parser = new Parser(new ParserConfig($target->version));
51        $trees = array_map(static fn (Source $source1): File => (new Resolver())->resolve($parser->parse(new Source(Path::normalize($source1->path), $source1->contents, $source1->declarationsOnly))), iterator_to_array($input, false));
52        $program = new Index($snapshotId, $trees);
53        $engine = new Evaluator(new Context(new DefinitionIndex($program), $settings, $evaluators, $budget));
54        $symbol = 'target';
55        $graph = $engine->context->index->graph($symbol);
56        self::assertNotNull($graph);
57        $engine->context->evaluationEvidence->offsetSet($graph->body, new \Deriver\Deriver\Evaluator\Evidence\Node(\Deriver\Deriver\Evaluator\Evidence\EvidenceKind::EvaluatorApplication));
58        $alternatives = (new Choices())->alternatives($engine->returns(new Frame($graph, 'source:' . $symbol), 64));
59        $values = array_reduce(iterator_to_array($alternatives, false), static function (array $values, array $alternative): array {
60            [$value, $_] = $alternative;
61            $values[(new Identity())->key($value)] = $value;
62            return $values;
63        }, []);
64        self::assertCount(1, $values);
65        $resolvedValue = array_values($values)[0];
66        self::assertInstanceOf(Term::class, $resolvedValue);
67        self::assertSame('axby', $resolvedValue->native());
68    }
69}
70