DDC-4019: Proxy generator is not including PHP7 return type hints

[doctrinebot]

Jira issue originally created by user radmen:

Proxy generator skips return type hints which results in generating non-compatible proxies.

Entity example:

<?php

namespace Domain\Members;

use Doctrine\ORM\Mapping as ORM;

/****
 * @ORM\Entity
 */
class Member
{

    /****
     * @ORM\Id()
     * @ORM\Column(type="guid")
     * @var string
     */
    private $id;

    public function getId(): string
    {
        return $this->id;
    }
}

Generated proxy:

<?php

namespace DoctrineProxies\*_CG_*\Domain\Members;

/****
 * DO NOT EDIT THIS FILE - IT WAS CREATED BY DOCTRINE'S PROXY GENERATOR
 */
class Member extends \Domain\Members\Member implements \Doctrine\ORM\Proxy\Proxy
{

    // CUT

    /****
     * {@inheritDoc}
     */
    public function getId()
    {

        $this->*_initializer__ && $this->__initializer__->_*invoke($this, 'getId', array());

        return parent::getId();
    }

}

Currently only workaround for this is to remove return type hints definitions.

[thomask]

Didn't properly investigate, but I think the same might go for scalar type hints (doctrine/orm v2.4.8)

[Majkl578]

I think this is fixed by https://github.com/doctrine/common/pull/376/files, but it's unfortunately only in 2.6.0 which can't be installed with docrine/orm=2.5.*.

[BenMorel]

This is a major issue, that affects scalar type hints as well indeed. In its current state, the ORM just cannot work with entities using scalar type hints or return types.

What prevents doctrine/common 2.6.0 from being used with doctrine/orm 2.5.* exactly?

[Ocramius]

Time, and the lack of it.
On Dec 24, 2015 4:32 AM, "Benjamin Morel" notifications@github.com wrote:

This is a major issue, that affects scalar type hints as well indeed. In
its current state, the ORM just cannot work with entities using scalar type
hints or return types.

What prevents doctrine/common 2.6.0 from being used with doctrine/orm
2.5.* exactly?

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[BenMorel]

I mean, is it just a matter of updating the composer.json file?

If I force using 2.6.0 ("doctrine/common": "2.6.0 as 2.5.3"), it seems to work fine.

I can open a PR on the ORM and DBAL packages to modify their composer.json, but I'm not sure if there is another problem as you guys could do this modification in 2 clicks?

[Ocramius]

Yup, just a matter of doing that and preparing a new release ;-)
On Dec 24, 2015 12:13, "Benjamin Morel" notifications@github.com wrote:

I mean, is it just a matter of updating the composer.json file?

If I force using 2.6.0 ("doctrine/common": "2.6.0 as 2.5.3"), it seems to
work fine.

I can open a PR on the ORM and DBAL packages to modify their composer.json,
but I'm not sure if there is another problem as you guys could do this
modification in 2 clicks?

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#4884 (comment)
.

[BenMorel]

Thanks @Ocramius 👍