hello, if I try to edit a file, I have no way to keep a method and overwrite others, as there is "setMethods" which does a $methods = [].

I think there may be a setMethod() or overwriteMethod() that allows to add without deleting everything.

// copied from addMethod
public function setMethod(Method $method): static
{
	$lower = strtolower($method->getName());
	if (isset($this->methods[$lower])) {
		throw new Nette\InvalidStateException("Cannot add method '$name', because it already exists.");
	}
	if (!$this->isInterface()) {
		$method->setPublic();
	}

	return $this->methods[$lower] = $method;
}

This problem arose when doing a diff between the methods of a class.

I think it is important to have automatically generated files that can be edited by the programmer and the generator without losing data.