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<?php |
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namespace Spatie\ViewComponents; |
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use Illuminate\Contracts\Support\Htmlable; |
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use Illuminate\Support\Str; |
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use InvalidArgumentException; |
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final class ComponentFinder |
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{ |
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/** @var string */ |
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private $rootNamespace; |
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/** @var array */ |
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private $namespaces; |
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public function __construct(string $rootNamespace, array $namespaces) |
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{ |
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$this->rootNamespace = $rootNamespace; |
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$this->namespaces = $namespaces; |
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} |
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public function find(string $identifier): string |
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{ |
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$identifier = $this->sanitizeIdentifier($identifier); |
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$componentClass = class_exists($identifier) |
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? $identifier |
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: $this->expandComponentClassPath($identifier); |
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if (! class_exists($componentClass)) { |
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throw new InvalidArgumentException("View component [{$componentClass}] not found."); |
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} |
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if (! array_key_exists(Htmlable::class, class_implements($componentClass))) { |
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throw new InvalidArgumentException( |
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"View component [{$componentClass}] must implement Illuminate\Support\Htmlable." |
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); |
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} |
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return $componentClass; |
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} |
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private function expandComponentClassPath(string $path): string |
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{ |
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if (Str::contains($path, '::')) { |
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[$namespaceAlias, $path] = explode('::', $path, 2); |
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} |
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$namespace = isset($namespaceAlias) |
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? $this->resolveNamespaceFromAlias($namespaceAlias) |
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: $this->rootNamespace; |
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return collect(explode('.', $path)) |
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->map(function (string $part) { |
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return ucfirst($part); |
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}) |
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->prepend($namespace) |
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->implode('\\'); |
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} |
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private function resolveNamespaceFromAlias(string $alias): string |
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{ |
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$namespace = $this->namespaces[$alias] ?? null; |
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if (! $namespace) { |
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throw new InvalidArgumentException("View component namespace [$alias] doesn't exist."); |
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} |
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return $namespace; |
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} |
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private function sanitizeIdentifier(string $identifier): string |
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{ |
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$identifier = trim($identifier, '\'" '); |
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return str_replace('::class', '', $identifier); |
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} |
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} |
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spatie /
laravel-view-components
This check marks access to variables or properties that have not been declared yet. While PHP has no explicit notion of declaring a variable, accessing it before a value is assigned to it is most likely a bug.