Intellij + Lift red lines problem

[Chenguang He]

Hey guys,

I am ready curious about the red lines in my Intellij.

Please take a look at following code:

https://github.com/Otann/lift-mongo-auth/blob/master/src/main/scala/code/model/User.scala

This code works fine, it can be complied in Intellij.

However, I use Intellij open this file. 

I got a lot of red lines.

For example:

 override def validations =

      valMaxLen(64, "Name must be 64 characters or less") _ ::

      super.validations

i got :

Expression of type List[(name.ValueType)=>scala.List[FieldError]] doesn't conform to expected type scala.List[nameValidationFunction]

and 

def whenCreated: DateTime = new DateTime(id.is.getTime)

i got:

can't solve symbol getTime

I don't know why there are "red line" error, but do not effect on the compiler?

Thank you 

Chenguang He

[Dennis Haupt]

because intellij parses the file itself and therefore can be out of sync
with the compiler.
post a bug here: http://youtrack.jetbrains.com/issues/SCL

> --
> --
> Lift, the simply functional web framework: http://liftweb.net
> Code: http://github.com/lift
> Discussion: http://groups.google.com/group/liftweb
> Stuck? Help us help you:
> https://www.assembla.com/wiki/show/liftweb/Posting_example_code
>
>
>


--

[Chenguang He]

I will post them.

I know many people in here who use Intellij. 

How do you guys fix them? or just ignore them?

Chenguang He

[Dennis Haupt]

i rarely have such errors in my code, so i just report everything and it
gets fixed sooner or later. in library code, i ignore the errors.
as a workaround, it usually helps to specify a type explicitly since out
of sync type inference is the most common reason for such false
positives (at least for me)

[Sergey Trofimov]

Generally such problems are caused but invalid project structure settings or missing libraries on the computer. Don't you have warnings in Project structure dialog?

Also do you have last scala plug-in installed.

There are still some cases when scala plug-in reports incorrectly, but rarely.

Also I use sbt to compile project instead of IDEA.


--
Sergey Trofimov

[Chenguang He]

Do you guys enable Type-aware highlighting, what level of it you guys use?

Chenguang He

[IL]

I enable it most of the time. except for scala 2.10.

compile projects with sbt and ignore those red lines.

IL

[Dennis Haupt]

there are different levels?

>>>> http://liftweb.net <http://liftweb.net/>

>>>> Code: http://github.com/lift
>>>> Discussion: http://groups.google.com/group/liftweb
>>>> <http://groups.google.com/group/liftweb>
>>>> Stuck? Help us help you:
>>>> https://www.assembla.com/wiki/show/liftweb/Posting_example_code
>>>> <https://www.assembla.com/wiki/show/liftweb/Posting_example_code>
>>>>
>>>>
>>>>
>>>
>>>
>>> --
>>>
>>> --
>>> --
>>> Lift, the simply functional web framework: http://liftweb.net

>>> <http://liftweb.net/>

>>> Code: http://github.com/lift
>>> Discussion: http://groups.google.com/group/liftweb
>>> <http://groups.google.com/group/liftweb>
>>> Stuck? Help us help you:
>>> https://www.assembla.com/wiki/show/liftweb/Posting_example_code

>>> <https://www.assembla.com/wiki/show/liftweb/Posting_example_code>
>>>
>>>
>>>
>>
>>
>> --
>> --
>> Lift, the simply functional web framework: http://liftweb.net

>> <http://liftweb.net/>

>> Code: http://github.com/lift
>> Discussion: http://groups.google.com/group/liftweb
>> <http://groups.google.com/group/liftweb>
>> Stuck? Help us help you:

>> https://www.assembla.com/wiki/show/liftweb/Posting_example_code <https://www.assembla.com/wiki/show/liftweb/Posting_example_code>

>>
>>
>>
>>
>>
>>
>> --
>> --
>> Lift, the simply functional web framework: http://liftweb.net

>> <http://liftweb.net/>

>> Code: http://github.com/lift
>> Discussion: http://groups.google.com/group/liftweb
>> <http://groups.google.com/group/liftweb>
>> Stuck? Help us help you:
>> https://www.assembla.com/wiki/show/liftweb/Posting_example_code

[Diego Medina]

Like others have said, the best thing you can do is report them as
bugs, and then you can post the link to those bugs here, and we can
then "vote" them on the intellij site. The more votes, higher the
changes it gets fixed.

Speaking of which, I just entered this one

http://youtrack.jetbrains.com/issue/SCL-4493

Thanks.

> --
> --
> Lift, the simply functional web framework: http://liftweb.net
> Code: http://github.com/lift
> Discussion: http://groups.google.com/group/liftweb
> Stuck? Help us help you:
> https://www.assembla.com/wiki/show/liftweb/Posting_example_code
>
>
>



--

Diego Medina
Lift/Scala Developer
di...@fmpwizard.com
http://www.fmpwizard.com

[Brent Sowers]

What version of IntelliJ and the Scala plugin are you using?  Several months ago when I upgraded to 11.1 from 11.0 I had the same issue, it turned out to be a problem in the Scala plugin for 11.1.  I downgraded to 11.0 and it's been working fine for me since.  I believe the Scala compiler has been updated though to fix the problem in 11.1 so I'd suggest re-installing that before downgrading to 11.0.

Brent Sowers

Senior Software Engineer, Audax Health (We're hiring Scala and Lift developers! https://gist.github.com/3025609)

brent....@audaxhealth.com

Twitter - http://twitter.com/sowersb

LinkedIn - http://linkedin.com/in/brentsowers1

[Dennis Haupt]

the plugin switched from using scala 2.9 to 2.10 i think, that's were
the bugs came from

Am 28.07.2012 15:52, schrieb Brent Sowers:
> What version of IntelliJ and the Scala plugin are you using? Several
> months ago when I upgraded to 11.1 from 11.0 I had the same issue, it
> turned out to be a problem in the Scala plugin for 11.1. I downgraded
> to 11.0 and it's been working fine for me since. I believe the Scala
> compiler has been updated though to fix the problem in 11.1 so I'd
> suggest re-installing that before downgrading to 11.0.
>
> Brent Sowers
> Senior Software Engineer, Audax Health (We're hiring Scala and Lift
> developers! https://gist.github.com/3025609

> <https://gist.github.com/3025609>)
> brent....@audaxhealth.com <mailto:brent....@audaxhealth.com>

[Chenguang He]

I am using scala 2.9.1 and intellij 11.1.3 with scala plug-in 0.5.907 

Chenguang He

[Chenguang He]

Yes, There are three levels of Type-ware highlighting:  none, syntax and inspections

Chenguang He