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<?php declare(strict_types = 1); namespace PHPStan\PhpDocParser\Ast\Type; use PHPStan\PhpDocParser\Ast\NodeAttributes; use function implode; use function sprintf; class GenericTypeNode implements TypeNode { public const VARIANCE_INVARIANT = 'invariant'; public const VARIANCE_COVARIANT = 'covariant'; public const VARIANCE_CONTRAVARIANT = 'contravariant'; public const VARIANCE_BIVARIANT = 'bivariant'; use NodeAttributes; public IdentifierTypeNode $type; /** @var TypeNode[] */ public array $genericTypes; /** @var (self::VARIANCE_*)[] */ public array $variances; /** * @param TypeNode[] $genericTypes * @param (self::VARIANCE_*)[] $variances */ public function __construct(IdentifierTypeNode $type, array $genericTypes, array $variances = []) { $this->type = $type; $this->genericTypes = $genericTypes; $this->variances = $variances; } public function __toString(): string { $genericTypes = []; foreach ($this->genericTypes as $index => $type) { $variance = $this->variances[$index] ?? self::VARIANCE_INVARIANT; if ($variance === self::VARIANCE_INVARIANT) { $genericTypes[] = (string) $type; } elseif ($variance === self::VARIANCE_BIVARIANT) { $genericTypes[] = '*'; } else { $genericTypes[] = sprintf('%s %s', $variance, $type); } } return $this->type . '<' . implode(', ', $genericTypes) . '>'; } }
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