amp/lib/Watcher.php

<?php

namespace Amp;

abstract class Watcher extends Struct {
    const IMMEDIATE    = 0b00000001;
    const TIMER        = 0b00000010;
    const TIMER_ONCE   = 0b00000110;
    const TIMER_REPEAT = 0b00001010;
    const IO           = 0b00010000;
    const IO_READER    = 0b00110000;
    const IO_WRITER    = 0b01010000;
    const SIGNAL       = 0b10000000;

    public $id;
    public $type;
    public $isEnabled;
}