Nullable parameters with type-hints are not directly supported

[jmalloc]

The method below has a parameter with that is nullable, followed by a non-optional parameter. It's an unfortunate consequence of using the default value of null to indicate a nullable parameter (rather than something like this that this is perfectly valid and sometimes necessary code.

class Class_
{
    public function method(SomeClass $nullable = null, $notOptional) {}
}

$m = \Eloquent\Phony\Phony::mock(Class_::class);
$m->mock()->method(null, '<any>');

This code fails like so:

Uncaught TypeError: Argument 1 passed to PhonyMock__0::method() must be an
instance of SomeClass, null given, called in test.php on line 17 and defined in
MockFactory.php(146) : eval()'d code:5

I suspect the mock generation code is using the "number of required parameters" from the function reflector to determine whether or not a parameter has a default value, rather than checking each parameter individually, possibly as an optimisation.

[ezzatron]

Perhaps. It might also be in the function signature inspector somewhere.