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<?php |
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declare(strict_types=1); |
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namespace Seboettg\Collection\Assert; |
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use ReflectionException; |
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use ReflectionFunction; |
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use Seboettg\Collection\Assert\Exception\NotApplicableCallableException; |
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use Seboettg\Collection\Assert\Exception\NotConvertibleToStringException; |
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use Seboettg\Collection\Assert\Exception\TypeIsNotAScalarException; |
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use Seboettg\Collection\Assert\Exception\WrongTypeException; |
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use function is_scalar; |
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use function is_object; |
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use function method_exists; |
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final class Functions |
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{ |
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public static final function assertScalar($value, string $message): void |
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{ |
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if (!is_scalar($value)) { |
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throw new TypeIsNotAScalarException($message); |
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} |
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} |
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public static final function assertType($value, string $fqcn, string $message) |
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{ |
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if (!$value instanceof $fqcn) { |
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throw new WrongTypeException($message); |
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} |
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1 |
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} |
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public static final function assertStringable($value, string $message) |
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{ |
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if (!is_scalar($value)) { |
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if (!self::isStrigableObject($value)) { |
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throw new NotConvertibleToStringException($message); |
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} |
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} |
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} |
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private static function isStrigableObject($value): bool |
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{ |
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return is_object($value) && method_exists($value, "__toString"); |
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} |
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public static function assertValidCallable(callable $callable, array $parameters) |
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{ |
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$reflected = new ReflectionFunction($callable); |
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if (count($reflected->getParameters()) !== count($parameters)) { |
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throw new NotApplicableCallableException( |
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"The number of parameters of the given callable does not match the expected number." |
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); |
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} |
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for ($i = 0; $i < count($reflected->getParameters()); ++$i) { |
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$reflectedParamType = $reflected->getParameters()[$i]->getType()->getName(); |
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$expectedParam = $parameters[$i]; |
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switch ($expectedParam) { |
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case "scalar": |
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if (!in_array($reflectedParamType, ["int", "string", "bool", "float"])) { |
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self::throwNotApplicableCallableException($i, "scalar", $reflectedParamType); |
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} |
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break; |
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case "mixed": |
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//ignore, since every type is allowed |
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break; |
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default: |
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if ($reflectedParamType !== $expectedParam) { |
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self::throwNotApplicableCallableException($i, $expectedParam, $reflectedParamType); |
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} |
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} |
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} |
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2 |
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} |
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private static function throwNotApplicableCallableException($paramNumber, $expectedType, $actualType) |
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{ |
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throw new NotApplicableCallableException( |
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sprintf( |
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"Parameter %d of type %s does not match the expected type of %s", |
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$paramNumber, |
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$actualType, |
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$expectedType |
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) |
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); |
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} |
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} |
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/** |
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* @param $value |
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* @param string $message description that will be included in the failure message if the assertion fails. |
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* @return void |
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*/ |
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function assertScalar($value, string $message): void |
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{ |
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Functions::assertScalar($value, $message); |
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} |
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/** |
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* @param $value |
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* @param string $fqcn full qualified class name |
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* @param string $message description that will be included in the failure message if the assertion fails. |
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* @return void |
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*/ |
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function assertType($value, string $fqcn, string $message): void |
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{ |
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1 |
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Functions::assertType($value, $fqcn, $message); |
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1 |
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} |
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108
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/** |
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* @param $value |
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* @param string $message description that will be included in the failure message if the assertion fails. |
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* @return void |
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*/ |
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function assertStringable($value, string $message): void |
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{ |
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4 |
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Functions::assertStringable($value, $message); |
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3 |
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} |
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118
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119
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function assertValidCallable(callable $callable, array $parameters) |
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{ |
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Functions::assertValidCallable($callable, $parameters); |
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} |
seboettg /
Collection
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