remove optional parameter value

[saeideng]

I changed also the interface
not sure if it is BC
Closes #581

[codecov]

Codecov Report

Merging #582 (99e2f5a) into master (cf3bff0) will not change coverage.
The diff coverage is n/a.

@@            Coverage Diff            @@
##             master     #582   +/-   ##
=========================================
  Coverage     95.00%   95.00%           
  Complexity      110      110           
=========================================
  Files            11       11           
  Lines           280      280           
=========================================
  Hits            266      266           
  Misses           14       14           

Impacted Files	Coverage Δ
src/File/Writer/DefaultWriter.php	100.00% <ø> (ø)
src/Model/Behavior/UploadBehavior.php	94.73% <ø> (ø)

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[davidyell]

Seems sensible, although with it typed as ?UploadedFileInterface will the default type be null ?

[saeideng]

Seems sensible, although with it typed as ?UploadedFileInterface will the default type be null ?

no default value , because you have to pass all parameters
(except when using named Argument)

[saeideng]

test with named Argument:

class A
{
    public string $first;
    public ?string $nullableString;
    public int $third;
    public function __construct(
        string $first,
        ?string $nullableString = null,
        int $third,
    ) {
       
        $this->first = $first;
        $this->nullableString = $nullableString;
        $this->third = $third;
    }
    public function dump(){
        var_dump($this->first);
        var_dump($this->nullableString);
        var_dump($this->third);
    }
}
$data = new A(
    'a string',
    third: 20,
    
);
$data->dump();

current implementation only works in php 8.0 when you use named Argument

//result php 8.0
string(8) "a string"
NULL
int(20)

//result php 8.1
Deprecated: Optional parameter $nullableString declared before required parameter $third is implicitly treated as a required parameter
Fatal error: Uncaught ArgumentCountError: A::__construct(): Argument #2 ($nullableString) not passed

[saeideng]

extending class test:

class A
{
    public  $p;
    public function func(
        int $p = null
    ){
        $this->p = $p;
    }
}
class B extends A
{
    public  $p;
    public function func(
        ?int $p = null
    ) {
        $this->p = $p;
    }
    public function dump(){
        var_dump($this->p);
    }
}
$data = new B();
$data->func(50);
$data->dump();

php 7.1+

int(50)

another test:
implement interface ( testing __construct())

interface AInterface
{
    public function __construct(
        string $p = null
    );
}
class A implements AInterface
{
    public $p;
    public function __construct(
        ?string $p = null
    ) {
        $this->p = $p;
    }
    public function dump(){
        var_dump($this->p);
    }
}
$data = new A(
    'a string'
);
$data->dump();

php 7.1+

string(8) "a string"