InputStreamChain

[Gabriel Ostrolucký]

I needed to combine output of two input streams while not leaking null from previous stream. I abandoned this idea after all, but code is already written and wonder if you would be interested in me to contribute it here? Usage is like following.

public function testInputStreamChain()
{
    $chain = new InputStreamChain(new InMemoryStream('foo'), new InMemoryStream(null), new InMemoryStream('bar'));

    self::assertEquals('foo', wait($chain->read()));
    self::assertEquals(null, wait($chain->read()));
    self::assertEquals('bar', wait($chain->read()));
}

[Niklas Keller]

@ostrolucky Sorry for not responding yet, sounds fine to me.

[Aaron Piotrowski]

The second call to read() should not return null. Consecutive calls to read() should return 'foo', 'bar', then null.

[Gabriel Ostrolucký]

That's discutable, but I have found that impossible to solve anyway in my implementation. Source can be found at https://github.com/ostrolucky/stdinho/blob/cfb4735e5037575eeb1b5275f890a2b3cd19473e/src/Stream/InputStreamChain.php