Roave\BackwardCompatibility\SourceLocator\StaticClassMapSourceLocator

Complexity

Total Complexity

4

Size/Duplication

Total Lines	37
Duplicated Lines	0 %

Importance

Changes	2
Bugs	0	Features	0

2 Methods

Rating	Name	Duplication	Size	Complexity
A	__construct()	0	13	1
A	createLocatedSource()	0	13	3

<?php

declare(strict_types=1);

namespace Roave\BackwardCompatibility\SourceLocator;

use Assert\Assert;
use Roave\BetterReflection\Identifier\Identifier;
use Roave\BetterReflection\SourceLocator\Ast\Locator;
use Roave\BetterReflection\SourceLocator\Located\LocatedSource;
use Roave\BetterReflection\SourceLocator\Type\AbstractSourceLocator;
use function array_keys;
use function array_map;
use function Safe\file_get_contents;

final class StaticClassMapSourceLocator extends AbstractSourceLocator
{
    /** @var string[] */
    private $classMap;

     /**
      * @param array<string, string> $classMap map of class => file. Every file must exist,
      *                                        every key must be non-empty
      */
    public function __construct(
        array $classMap,
        Locator $astLocator
    ) {
        parent::__construct($astLocator);

        /** @var string[] $realPaths */
        $realPaths = array_map('realpath', $classMap);

        Assert::that($classMap)->all()->file();
        Assert::that(array_keys($classMap))->all()->notEmpty();

        $this->classMap = $realPaths;
    }

    protected function createLocatedSource(Identifier $identifier) : ?LocatedSource
    {
        if (! $identifier->isClass()) {
            return null;
        }

        $classFile = $this->classMap[$identifier->getName()] ?? null;

        if ($classFile === null) {
            return null;
        }

        return new LocatedSource(file_get_contents($classFile), $classFile);
    }
}