packages/deriver/tests/Unit/Deriver/Evaluator/Scope/ContextTest.php

1<?php
2
3declare (strict_types=1);
4
5namespace Tests\Unit\Deriver\Evaluator\Scope;
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\Evaluator;
12use Deriver\Deriver\Evaluator\EvaluatorConfig;
13use Deriver\Deriver\Evaluator\Index\DefinitionIndex;
14use Deriver\Deriver\Evaluator\Request\Budget;
15use Deriver\Deriver\Evaluator\Scope\Context;
16use Deriver\Deriver\Evaluator\Scope\Frame;
17use Deriver\Deriver\Evaluator\TargetProfile;
18use Deriver\Deriver\Evaluator\Term;
19use Deriver\Deriver\Evaluator\TermKind;
20use Deriver\Deriver\Lowerer\Declaration\Index;
21use Deriver\Deriver\MicroEvaluatorConversion;
22use Deriver\Deriver\Parser\Node\File;
23use Deriver\Deriver\Parser\Parser;
24use Deriver\Deriver\Parser\ParserConfig;
25use Deriver\Deriver\Providers\ProviderExpansion;
26use Deriver\Deriver\Resolver\Resolver;
27use Deriver\Deriver\Sources\Path;
28use Deriver\Deriver\Sources\Source;
29use Deriver\Deriver\Sources\Sources;
30use PHPUnit\Framework\Attributes\CoversNothing;
31use PHPUnit\Framework\TestCase;
32
33#[CoversNothing]
34final class ContextTest extends TestCase
35{
36    public function testBoundaryKeepsDepthAndResourceReasonsSeparate(): void
37    {
38        $source = 'function target($x){return $x+2;}';
39        $configuration = new DeriverConfig();
40        $budget = new Budget();
41        $contributions = new Contributions();
42        $target = new TargetProfile($configuration->phpVersion, $configuration->integerBits, $configuration->floatPrecision);
43        $providers = new ProviderExpansion(new Sources([new Source('candidate.php', '<?php ' . $source)]), array_map(Term::fromNative(...), $configuration->environment), $contributions);
44        $contributions1 = $providers->contributions;
45        $evaluators = new Evaluators(new TargetProfile($configuration->phpVersion, $configuration->integerBits, $configuration->floatPrecision), new Registrations($contributions1->evaluators, $contributions1->providers, $contributions1->domains, $contributions1->intrinsics, $contributions1->stateSlots), $configuration->standardEvaluators);
46        $settings = new EvaluatorConfig($target, $providers->environment, $configuration->standardEvaluators, array_map((new MicroEvaluatorConversion())->convert(...), $configuration->evaluators));
47        $snapshotId = 'test';
48        $input = $providers->input;
49        $parser = new Parser(new ParserConfig($target->version));
50        $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));
51        $program = new Index($snapshotId, $trees);
52        $e = new Evaluator(new Context(new DefinitionIndex($program), $settings, $evaluators, $budget));
53        self::assertSame('DEPTH_LIMIT', $e->context->boundary(0));
54        self::assertNull($e->context->boundary(1));
55    }
56    public function testReferenceCarriesSourceScopeTypeAndStopReason(): void
57    {
58        $source = 'function target($x){return $x+2;}';
59        $configuration = new DeriverConfig();
60        $budget = new Budget();
61        $contributions = new Contributions();
62        $target = new TargetProfile($configuration->phpVersion, $configuration->integerBits, $configuration->floatPrecision);
63        $providers = new ProviderExpansion(new Sources([new Source('candidate.php', '<?php ' . $source)]), array_map(Term::fromNative(...), $configuration->environment), $contributions);
64        $contributions1 = $providers->contributions;
65        $evaluators = new Evaluators(new TargetProfile($configuration->phpVersion, $configuration->integerBits, $configuration->floatPrecision), new Registrations($contributions1->evaluators, $contributions1->providers, $contributions1->domains, $contributions1->intrinsics, $contributions1->stateSlots), $configuration->standardEvaluators);
66        $settings = new EvaluatorConfig($target, $providers->environment, $configuration->standardEvaluators, array_map((new MicroEvaluatorConversion())->convert(...), $configuration->evaluators));
67        $snapshotId = 'test';
68        $input = $providers->input;
69        $parser = new Parser(new ParserConfig($target->version));
70        $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));
71        $program = new Index($snapshotId, $trees);
72        $e = new Evaluator(new Context(new DefinitionIndex($program), $settings, $evaluators, $budget));
73        $symbol = 'target';
74        $graph = $e->context->index->graph($symbol);
75        self::assertNotNull($graph);
76        $f = new Frame($graph, 'source:' . $symbol);
77        $r = $e->context->reference($f, 'x', $f->graph->body->source, 'int', 'DEPTH_LIMIT', TermKind::Deferred);
78        self::assertSame('target', $r->attributes['scope']);
79        self::assertSame('int', $r->attributes['type']);
80        self::assertSame('DEPTH_LIMIT', $r->attributes['reason']);
81    }
82    public function testRecordCapturesOnlyRequestedInstructionEvidence(): void
83    {
84        $source = 'function target($x){return $x+2;}';
85        $configuration = new DeriverConfig();
86        $budget = new Budget();
87        $contributions = new Contributions();
88        $target = new TargetProfile($configuration->phpVersion, $configuration->integerBits, $configuration->floatPrecision);
89        $providers = new ProviderExpansion(new Sources([new Source('candidate.php', '<?php ' . $source)]), array_map(Term::fromNative(...), $configuration->environment), $contributions);
90        $contributions1 = $providers->contributions;
91        $evaluators = new Evaluators(new TargetProfile($configuration->phpVersion, $configuration->integerBits, $configuration->floatPrecision), new Registrations($contributions1->evaluators, $contributions1->providers, $contributions1->domains, $contributions1->intrinsics, $contributions1->stateSlots), $configuration->standardEvaluators);
92        $settings = new EvaluatorConfig($target, $providers->environment, $configuration->standardEvaluators, array_map((new MicroEvaluatorConversion())->convert(...), $configuration->evaluators));
93        $snapshotId = 'test';
94        $input = $providers->input;
95        $parser = new Parser(new ParserConfig($target->version));
96        $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));
97        $program = new Index($snapshotId, $trees);
98        $e = new Evaluator(new Context(new DefinitionIndex($program), $settings, $evaluators, $budget));
99        $symbol = 'target';
100        $graph = $e->context->index->graph($symbol);
101        self::assertNotNull($graph);
102        $f = new Frame($graph, 'source:' . $symbol);
103        $operation = 'binary';
104        $instruction = array_values(array_filter($f->graph->definitions, static fn ($instruction): bool => $instruction->operation === $operation))[0] ?? null;
105        $i = $instruction;
106        self::assertNotNull($i);
107        $e->context->record($f, $i);
108        self::assertCount(1, $e->context->recorded);
109        self::assertSame(1, $e->context->constructedNodes);
110        $e->context->record($f, $i);
111        self::assertSame(1, $e->context->constructedNodes);
112    }
113    public function testWorkStopsAtTheTransferBudget(): void
114    {
115        $source = 'function target($x){return $x+2;}';
116        $configuration = new DeriverConfig();
117        $budget = new Budget(transfers: 1);
118        $contributions = new Contributions();
119        $target = new TargetProfile($configuration->phpVersion, $configuration->integerBits, $configuration->floatPrecision);
120        $providers = new ProviderExpansion(new Sources([new Source('candidate.php', '<?php ' . $source)]), array_map(Term::fromNative(...), $configuration->environment), $contributions);
121        $contributions1 = $providers->contributions;
122        $evaluators = new Evaluators(new TargetProfile($configuration->phpVersion, $configuration->integerBits, $configuration->floatPrecision), new Registrations($contributions1->evaluators, $contributions1->providers, $contributions1->domains, $contributions1->intrinsics, $contributions1->stateSlots), $configuration->standardEvaluators);
123        $settings = new EvaluatorConfig($target, $providers->environment, $configuration->standardEvaluators, array_map((new MicroEvaluatorConversion())->convert(...), $configuration->evaluators));
124        $snapshotId = 'test';
125        $input = $providers->input;
126        $parser = new Parser(new ParserConfig($target->version));
127        $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));
128        $program = new Index($snapshotId, $trees);
129        $engine = new Evaluator(new Context(new DefinitionIndex($program), $settings, $evaluators, $budget));
130        self::assertNull($engine->context->work());
131        self::assertSame('BUDGET_EXCEEDED', $engine->context->work());
132    }
133}
134