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Push — master ( 5d4c6c...ea9d31 )
by Alexander
07:11
created

Normalizer::parse()   A

Complexity

Conditions 2
Paths 2

Size

Total Lines 9
Code Lines 5

Duplication

Lines 0
Ratio 0 %

Code Coverage

Tests 0
CRAP Score 6

Importance

Changes 1
Bugs 0 Features 0
Metric Value
cc 2
eloc 5
c 1
b 0
f 0
nc 2
nop 1
dl 0
loc 9
ccs 0
cts 6
cp 0
crap 6
rs 10
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<?php
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declare(strict_types=1);
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namespace Yiisoft\Factory\Definitions;
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use Yiisoft\Factory\Exceptions\InvalidConfigException;
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use function is_array;
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use function is_callable;
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use function is_object;
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use function is_string;
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/**
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 * Class Definition represents a definition in a container
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 */
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class Normalizer
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{
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    public const TAGS = '__tags';
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    public const DEFINITION = '__definition';
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    /**
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     * Definition may be defined multiple ways.
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     * Interface name as string:
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     *
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     * ```php
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     * $container->set('interface_name', EngineInterface::class);
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     * ```
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     *
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     * A closure:
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     *
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     * ```php
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     * $container->set('closure', function($container) {
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     *     return new MyClass($container->get('db'));
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     * });
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     * ```
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     *
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     * A callable array:
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     *
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     * ```php
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     * $container->set('static_call', [MyClass::class, 'create']);
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     * ```
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     *
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     * A definition array:
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     *
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     * ```php
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     * $container->set('full_definition', [
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     *     '__class' => EngineMarkOne::class,
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     *     '__construct()' => [42],
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     *     'argName' => 'value',
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     *     'setX()' => [42],
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     * ]);
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     * ```
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     *
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     * @param mixed $definition
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     *
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     * @throws InvalidConfigException
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     */
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    public static function normalize($definition, string $id = null, array $params = []): DefinitionInterface
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    {
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        if ($definition instanceof DefinitionInterface) {
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            return $definition;
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        }
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        if (is_string($definition)) {
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            if (empty($definition)) {
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                throw new InvalidConfigException('Invalid definition: empty string.');
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            }
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            if ($id === $definition || (!empty($params) && class_exists($definition))) {
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                /** @psalm-var class-string $definition */
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                return ArrayDefinition::fromArray($definition, $params);
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            }
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            return Reference::to($definition);
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        }
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        if (is_callable($definition, true)) {
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            return new CallableDefinition($definition);
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        }
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        if (is_array($definition)) {
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            /**
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             * @psalm-var class-string $id
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             * @psalm-var array<string,mixed> $definition
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             */
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            return ArrayDefinition::fromArray($id, [], $definition);
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        }
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        if (is_object($definition)) {
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            return new ValueDefinition($definition);
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        }
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        throw new InvalidConfigException('Invalid definition:' . var_export($definition, true));
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    }
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    /**
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     * @param mixed $definition
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     */
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    public static function parse($definition): array
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    {
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        if (!is_array($definition)) {
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            return [$definition, []];
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        }
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        $tags = (array)($definition[self::TAGS] ?? []);
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        unset($definition[self::TAGS]);
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        return [$definition[self::DEFINITION] ?? $definition, $tags];
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    }
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    /**
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     * Validates defintion for corectness.
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     *
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     * @param mixed $definition {@see normalize()}
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     *
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     * @throws InvalidConfigException
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     */
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    public static function validate($definition, bool $throw = true): bool
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    {
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        if ($definition instanceof DefinitionInterface) {
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            return true;
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        }
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        if (is_string($definition) && !empty($definition)) {
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            return true;
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        }
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        if (is_callable($definition)) {
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            return true;
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        }
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        if (is_array($definition)) {
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            return true;
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        }
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        if (is_object($definition)) {
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            return true;
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        }
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        if ($throw) {
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            throw new InvalidConfigException('Invalid definition:' . var_export($definition, true));
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        }
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        return false;
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    }
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}
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