[1.3.2] Volt Compiler addFunction as closure

[meetmatt]

Adding and later using a Volt function using closure results in script termination during compilation.

Example:

<?php
// www/index.php
$di = new Phalcon\DI\FactoryDefault();

$di->set('view', function () {
        $view = new Phalcon\Mvc\View();
        $view->setViewsDir('../app/views/');
        $view->registerEngines([
                '.volt' => function($view, $di) {
                        $volt = new Phalcon\Mvc\View\Engine\Volt($view, $di);
                        $volt->getCompiler()->addFunction('foo', function($args) {
                            return "'bar'";
                        });
                        return $volt;
                }
        ]);

        return $view;
});

$app = new Phalcon\Mvc\Application($di);
$response = $app->handle(); // terminates here
echo $response->getContent(); // unreachable

Volt template:

{# app/views/index.volt #}
{{ foo() }}

It seems that execution is terminated while trying to compile Volt template to PHP file.

Ubuntu 12.04 x64
PHP 5.5.13-2
Phalcon 1.3.2

[oh-ren]

Do you have Xdebug running?

[meetmatt]

Yes, i tried setting a breakpoint inside closure at return "'bar'" and it doesn't break there obviously terminating before. I wish I could debug the php process, just don't know how and what to look for.

[oh-ren]

Check this: http://forum.phalconphp.com/discussion/2204/xdebug-empty-reply-from-server-segmentation-fault-issue-with-vol

#2269

[meetmatt]

Disabling xdebug extension solved the issue, thank you!
Didn't know that xdebug and phalcon have compatibility problems, I think it's quite a critical issue.
At least this info should be added somewhere in the documentation.

[oh-ren]

Yes, it's not very pretty I guess.. Regarding the docs; the core team is small, and the project for a large part depends on contributions from others. Perhaps I could add something to the docs and create a PR for that.