The parameter and property types are not correctly returned when they are nullable
jenky opened this issue · comments
Version: 4.1.3
Bug Description
getType
does not return correct type
Steps To Reproduce
$class = new ClassType('Hello');
$method = $class->addMethod('greeting');
$param = $method->addParameter('name', null)
->setType('string')
->setNullable();
echo $param->getType(); // "string"
The class was generated correctly
class Hello
{
public function greeting(?string $name = null)
{
}
}
Expected Behavior
$param->getType()
should return ?string
or null|string
instead of string
For me is ok, if you set null with setNullable, you should check with:
echo $param->isNullable(); // true
Why do I need to check isNullable
when I already know it by using setNullable
? I want to get the correct param type not the nullable
state.
Why do you ask for the type if you already know that the answer is string? In large programs you won't know where the type is set or what type it is.
Example: I generate code with ->setType[$entity->getPhpType()].
Why do you ask for the type if you already know that the answer is string?
It's just an example to reproduce the bug
In large programs you won't know where the type is set or what type it is.
Example: I generate code with ->setType[$entity->getPhpType()].
So what is your point then?. Your example is clearly the reason getType
should return the correct types
I am a user, I do not participate in the development, I think it is correct to check with isNullable, otherwise you have to parse the response to know if it is nullable or string
isNullable
doesn't return true
in the case of ->setType('null|string')
but it does return true for ->setType('?string')
.
If you take a look at this Nette\Utils\Type::fromString
public static function fromString(string $type): self
{
// ...
if ($type[0] === '?') {
return new self([substr($type, 1), 'null']);
}
// ...
}
It is clear that the fromString
method is capable of parsing and returning the correct types. When using Nette\Utils\Type::fromString('?string')
, it correctly returns the expected types. However ->setType('?string')->getType()
doesn't (which uses Nette\Utils\Type::fromString
behind the scenes). With all the inconsistencies, I believe this is a bug.
Anyway, let the repository owner decide on further actions regarding this report.
This behavior is for historical reasons, because functions were created at a time when union types like null|string
didn't even exist yet. I would like to change this, but it will break compatibility.