packages/deriver/tests/Unit/Deriver/Evaluator/Language/ConstantsTest.php

1<?php
2
3declare (strict_types=1);
4
5namespace Tests\Unit\Deriver\Evaluator\Language;
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 ConstantsTest extends TestCase
36{
37    public function testNamedResolvesOnlyCapturedOrTargetConstants(): void
38    {
39        $engine = new Evaluator(new Context(new DefinitionIndex(new Index('constants', [])), new EvaluatorConfig(), new Evaluators(), new Budget()));
40        $constants = new \Deriver\Deriver\Evaluator\Language\Constants($engine);
41        self::assertSame(8, $constants->named('PHP_INT_SIZE', 64)?->native());
42        self::assertNull($constants->named('PHP_BINARY', 64));
43    }
44
45    public function testValueUsesTheTargetIntegerProfile(): void
46    {
47        $source = 'function target(){return PHP_INT_SIZE;}';
48        $configuration = new DeriverConfig();
49        $budget = new Budget();
50        $contributions = new Contributions();
51        $target = new TargetProfile($configuration->phpVersion, $configuration->integerBits, $configuration->floatPrecision);
52        $providers = new ProviderExpansion(new Sources([new Source('candidate.php', '<?php ' . $source)]), array_map(Term::fromNative(...), $configuration->environment), $contributions);
53        $contributions1 = $providers->contributions;
54        $evaluators = new Evaluators(new TargetProfile($configuration->phpVersion, $configuration->integerBits, $configuration->floatPrecision), new Registrations($contributions1->evaluators, $contributions1->providers, $contributions1->domains, $contributions1->intrinsics, $contributions1->stateSlots), $configuration->standardEvaluators);
55        $settings = new EvaluatorConfig($target, $providers->environment, $configuration->standardEvaluators, array_map((new MicroEvaluatorConversion())->convert(...), $configuration->evaluators));
56        $snapshotId = 'test';
57        $input = $providers->input;
58        $parser = new Parser(new ParserConfig($target->version));
59        $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));
60        $program = new Index($snapshotId, $trees);
61        $engine = new Evaluator(new Context(new DefinitionIndex($program), $settings, $evaluators, $budget));
62        $symbol = 'target';
63        $graph = $engine->context->index->graph($symbol);
64        self::assertNotNull($graph);
65        $alternatives = (new Choices())->alternatives($engine->returns(new Frame($graph, 'source:' . $symbol), 64));
66        $values = array_reduce(iterator_to_array($alternatives, false), static function (array $values, array $alternative): array {
67            [$value, $_] = $alternative;
68            $values[(new Identity())->key($value)] = $value;
69            return $values;
70        }, []);
71        self::assertCount(1, $values);
72        $resolvedValue = array_values($values)[0];
73        self::assertInstanceOf(Term::class, $resolvedValue);
74        self::assertSame(8, $resolvedValue->native());
75    }
76}
77