[BUG]: Exception thrown when using 'is defined' inside {{ }} in Volt

[sheroesde]

In Volt (using Phalcon\Mvc\Volt\Simple) I sometimes using shorthand notation for IF/ELSE like:

{{ someVar is defined ? 'yes' : 'no' }}

In Phalcon 3.4 all is fine, but it is broken in 4.0.0-rc.1, where I get

Phalcon\Mvc\View\Exception: Syntax error, unexpected token IDENTIFIER(is) in /home/my-project/app/views/premium.volt

[zsilbi]

Confirmed, although it does work within the {% %} tags, for example:

{% set myVar = someVar is defined ? 'yes' : 'no' %}

[Jurigag]

Well as i see @sergeyklay was doing some changes to volt parsers etc lately so maybe it was some of his change?

[elcreator]

same for me

{{ uploadedPhoto is user.avatar ? 'checked="checked"' : '' }}

Syntax error, unexpected token IDENTIFIER(is) in /....../views/registered/widgets/avatar.twig on line 31

[Jeckerson]

@elcreator What version of Phalcon do you use?

[elcreator]

Version | 4.0.0-rc.3
Build Date | Nov 16 2019 20:03:22
Powered by Zephir | Version 0.12.10-fedc314
PHP Version | 7.2.24-1

[elcreator]

as temporary fix I have replaced "is" with "=="

[mvanvu]

The same for me {{ title is empty ? siteName : title }} => Syntax error, unexpected token IDENTIFIER(is) ...

Version | 4.0.0-rc.3
Php 7.3

[madrian-es]

What's the status on this? We have a lot of code written for v4.0.0-rc.1 and we can't update to the latest version since this will imply rewriting A LOT of code.

Do you expect this to be fixed any time soon, or should we go ahead and rewrite everything?

[sergeyklay]

@madrian-es I'll try to sort out ASAP

[sergeyklay]

Status update: I fixed the issue. Thinking about better internal implementation

[sergeyklay]

Fixed in #14909