Online PHP editor | rfc for ccumv

@ 2020-07-29T15:25:37Z

<?php

interface Vehicle {
    public function setSpeedLimit(Float $limit) : Car;
    public function setManufacturer(String $manufacturer) : MethodOfTransport;
}

interface NonVehicle {
    public function addSaddle() : Bicycle;
    public function setManufacturer(String $manufacturer) : MethodOfTransport;
}

abstract class MethodOfTransport
{
    public function setManufacturer(String $manufacturer) : MethodOfTransport { return $this; }
}

class Bicycle extends MethodOfTransport implements NonVehicle
{
    public function addSaddle() : Bicycle { return $this; }
}

class Car extends MethodOfTransport implements Vehicle
{
    public function setSpeedLimit(Float $limit) : Car { return $this; }
}

$b = (new Bicycle())->setManufacturer( 'Foo' )->addSaddle();
$c = (new Car())->setManufacturer( 'Bar' )->setSpeedLimit( 140 );

interface VehicleServiceInterface
{
    public function create(MethodOfTransport $t) : Void;
}

class VehicleService implements VehicleServiceInterface
{
    public function create(MethodOfTransport $t) : Void
    {
        if (!$t instanceof Vehicle)
            throw new Exception( 'Cannot create a Vehicle on a NonVehicle instance.' );
            
        echo 'Created';
    }
}

(new VehicleService())->create( $c ); // Works
(new VehicleService())->create( $b ); // Throws Exception

Output for git.master, git.master_jit, rfc.property-hooks: Created Fatal error: Uncaught Exception: Cannot create a Vehicle on a NonVehicle instance. in /in/ccumv:41 Stack trace: #0 /in/ccumv(48): VehicleService->create(Object(Bicycle)) #1 {main} thrown in /in/ccumv on line 41
Process exited with code 255.

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2020-03-21 RFC: Is_Literal - declined
2020-12-04 Enumerations - included in PHP 8.1
2018-06-15 Typed Properties v2 - implemented in PHP 7.4
2016-08-12 Object typehint - included in PHP 7.2
2016-08-14 Arrow functions - withdrawn
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2016-04-19 Lexical scope support for anonymous classes - suspended
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2015-08-27 Callable Prototypes - declined
2015-05-01 Short Closures - declined / withdrawn in favor of Arrow Functions
2015-02-18 Scalar type hints v5 - included in PHP 7
2015-02-14 Union Types - declined
2013-09-22 Anonymous classes - included in PHP 7

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