Beta release of the Eclipse IDE for Scala (2.9.0 RC1)
iulian dragos
--------------------------------------------
Almost at the same time with the 2.9.0-RC1 release of the Scala
language, we are happy to announce a first beta of the
Scala IDE for Eclipse!
The new Scala IDE contains a completely revamped compiler interface
that promises to deliver better responsiveness, reliability, no
lock-ups and excellent semantic actions. Actions such as hyperlinking,
completion and real-time type checking are working reliably on large
projects. This release is a firm foundation on which the IDE can grow
to support all the features of a modern IDE.
Requirements:
- Eclipse 3.6.x (Helios)
Download:
- http://download.scala-ide.org/
The current release is an effort to provide a much more reliable and
stable plugin. Existing features in the 1.x series have been reviewed
and ported to the new compiler interface. However, you may notice that
some of them did not make it into this release (most notably,
highlighting implicit applications). We chose to be
conservative and include only features that can work reliably at this
point. To ease the choice between the IDE versions, there's a feature
matrix at
http://www.assembla.com/wiki/show/scala-ide/Features.
A note on versioning: the current release is a large departure from
the initial code base, and in order to minimize confusion, we called
this version 2.0.0 beta1. The initial code base, using the 2.8.x Scala
compiler carries the 1.0.0.qualifier version.
The compiler interface has been written by Scala's author and Scala
Solutions founder, Martin Odersky, who together with the IDE team at
Scala Solutions (Eugene Vigdorchik, Donna Malayeri, Hubert Polciniczak
and Iulian Dragos) and members of the Scala IDE community (Matt
Russel, Mirko Stocker, David Bernard, Miles Sabin) has been working
for the past four months to deliever a better IDE.
iulian dragos
> I can only get freezes from it :-/.
> I created an empty project, tried adding an object with a main for testing,
> tried the most basic content assist "print<ctrl + space>", and then it
> hangs.
> The notification bar in the bottom always says updateOccurrenceAnnotations
> when freezing
Can you please check the version string? Is it
2.0.0.201103281820-beta1-316ca33?
There was a synchronization problem and the Tweet went out a bit too
early, while an older version was still at the update site. If this is
the version you're seeing, then please file a bug report.
sorry for the inconvenience,
iulian
--
« Je déteste la montagne, ça cache le paysage »
Alphonse Allais
iulian dragos
On Tue, Mar 29, 2011 at 3:16 PM, Trond Olsen <tr...@steinbit.org> wrote:
> A small note to those trying out this plugin. Completion seemed to be broken
> if I used this plugin with my old workspace. Recreating the whole workspace
> and projects resolved this problem. Probably some old metadata from the
> previous Scala plugin that's caused some problems.
You need to make sure that, on the 'Java/Editor/Content
Assist/Advanced' page, you have 'Java Proposals' checked.
iulian
>
> My setup is Eclipse 3.6.2 with Aptana 2.0.5 plugin on Windows 7 (32-bit).
--
Clint Gilbert
mixed Java/Scala project for the first time in months. Some things:
* I also had the same problem with completions. They came back
eventually - I'm not sure if I did anything or not.
* I encountered freezes, but resolved them with some combination of:
(not sure which part actually helped)
New Eclipse install
New Scala IDE install
New workspace
* A (somewhat obscure) syntax error resulted in files with the error
being non-editable (can't open them or even right-click for a context
menu) until the errors are corrected in another editor and Eclipse is
restarted. Refreshing the file or project doesn't work. I'll make a
bug about this.
Alexandre
Just here to say that I've been trying for a few minutes the beta
plugin and switched my project to 2.9.0RC1. This is just great, the
improvements in terms of speed and reactivity are really great. I was
using exp_backport and I had a lot (a lot!) of minor problems but with
this version everything seems much smoother. Thanks to all the dev
team of the IDE!
Alexandre
On 29 mar, 19:00, Clint Gilbert <Clint_Gilb...@hms.harvard.edu> wrote:
> The new plugin is a big step up! I could do serious work with my
> mixed Java/Scala project for the first time in months. Some things:
>
> * I also had the same problem with completions. They came back
> eventually - I'm not sure if I did anything or not.
> * I encountered freezes, but resolved them with some combination of:
> (not sure which part actually helped)
> New Eclipse install
> New Scala IDE install
> New workspace
> * A (somewhat obscure) syntax error resulted in files with the error
> being non-editable (can't open them or even right-click for a context
> menu) until the errors are corrected in another editor and Eclipse is
> restarted. Refreshing the file or project doesn't work. I'll make a
> bug about this.
>
> > [I repost only to scala-ide-user]
>
> > On Tue, Mar 29, 2011 at 3:16 PM, Trond Olsen <tr...@steinbit.org> wrote:
> >> A small note to those trying out this plugin. Completion seemed to be broken
> >> if I used this plugin with my old workspace. Recreating the whole workspace
> >> and projects resolved this problem. Probably some old metadata from the
> >> previous Scala plugin that's caused some problems.
>
> > You need to make sure that, on the 'Java/Editor/Content
> > Assist/Advanced' page, you have 'Java Proposals' checked.
>
> > iulian
>
> >> My setup is Eclipse 3.6.2 with Aptana 2.0.5 plugin on Windows 7 (32-bit).
>
>
> >>> The Scala IDE for Eclipse for Scala beta 1 available now!
> >>> --------------------------------------------
> >>> Almost at the same time with the 2.9.0-RC1 release of the Scala
> >>> language, we are happy to announce a first beta of the
> >>> Scala IDE for Eclipse!
>
> >>> The new Scala IDE contains a completely revamped compiler interface
> >>> that promises to deliver better responsiveness, reliability, no
> >>> lock-ups and excellent semantic actions. Actions such as hyperlinking,
> >>> completion and real-time type checking are working reliably on large
> >>> projects. This release is a firm foundation on which the IDE can grow
> >>> to support all the features of a modern IDE.
>
> >>> Requirements:
> >>> - Eclipse 3.6.x (Helios)
> >>> Download:
iulian dragos
> Hi,
>
> Just here to say that I've been trying for a few minutes the beta
> plugin and switched my project to 2.9.0RC1. This is just great, the
> improvements in terms of speed and reactivity are really great. I was
> using exp_backport and I had a lot (a lot!) of minor problems but with
> this version everything seems much smoother. Thanks to all the dev
> team of the IDE!
It is really nice to hear this! Thanks!
cheers,
iulian
iulian dragos
<Clint_...@hms.harvard.edu> wrote:
> The new plugin is a big step up! I could do serious work with my
> mixed Java/Scala project for the first time in months. Some things:
>
> * I also had the same problem with completions. They came back
> eventually - I'm not sure if I did anything or not.
It's almost always a setting under Java/Editor/Content Assist/Advanced
(check Java Proposals). I don't know exactly why, but sometimes it
gets un-checked. The Setup Diagnostic window should take care of that,
if you use the 'recommended' settings.
> * I encountered freezes, but resolved them with some combination of:
> (not sure which part actually helped)
> New Eclipse install
> New Scala IDE install
> New workspace
Please, if you ever get a freeze again, submit a bug report with a
stack trace. Once the IDE is frozen, an easy way to get the stack
trace is on the command line:
$ jps -v
(to get the PID of the JVM running Eclipse)
$ jstack <pid>
You can also get a stack dump using VisualVM (don't know the exact
steps to do it).
As a side note, a nightly from last week is known to have a deadlock
regression, so make sure you have the right versio. Additionally,
there's this ticket:
Unfortunately, this occurs in JDT weaving code, so we cannot really
fix it, but the JVM options listed as a 'workaround' seem to help.
> * A (somewhat obscure) syntax error resulted in files with the error
> being non-editable (can't open them or even right-click for a context
> menu) until the errors are corrected in another editor and Eclipse is
> restarted. Refreshing the file or project doesn't work. I'll make a
> bug about this.
Thanks, I saw the bug report. We'll look into it.
iulian
iulian dragos
Known Issues page:
http://www.assembla.com/wiki/show/scala-ide/Known_Issues
If you encounter other issues (but not bugs) that have a workaround,
please let me know (or better yet, edit the above page) so others can
benefit.
thanks,
iulian
Jean-Philippe Pellet
January, which was kind of stable enough for me to work with, and I
was afraid of updating to the latest build. Now I've switched to
wip_experiment, and indeed, almost everything feels much snappier,
feels more robust, completion is more relevant, build progress is
great, etc. So big thanks & kudos to the whole team! The
wip_exp_backport/wip_experiment merge looks very promising, I'm
looking forward to get implicit highlighting back.
Cheers,
J.-P.
David Bernard
More "stable" version for scala 2.8.1 will released ASAP.
To help improve version for 2.8.1, please report (ticket or email) every issue/trouble.
Like the "know issue" page linked by Iulian, there is also in the wiki a page with Setup instructions that can improve your experience.
https://www.assembla.com/wiki/show/scala-ide/Setup
Thanks.
/davidB
Ben Hutchison
real work and for long periods. Thanks very much to the people who
have made that happen.
The future looks happy: code completion, navigation, refactoring
features will further boost Scala productivity. The planned merge
would be great: Implicit Highlighting + Reliability ==> Very nice.
-Ben
Alex Black
I just installed Eclipse 3.6.2 fresh, and decided I better refer to
the instructions on how to setup the Eclipse plugin, so ended up here:
https://www.assembla.com/wiki/show/scala-ide/Requirements_and_Installation
It looks like the page is currently blank, but it used to have some
steps?
- Alex
On Mar 28, 12:44 pm, iulian dragos <jagua...@gmail.com> wrote:
> The Scala IDE for Eclipse for Scala beta 1 available now!
> --------------------------------------------
> Almost at the same time with the 2.9.0-RC1 release of the Scala
> language, we are happy to announce a first beta of the
> Scala IDE for Eclipse!
>
> The new Scala IDE contains a completely revamped compiler interface
> that promises to deliver better responsiveness, reliability, no
> lock-ups and excellent semantic actions. Actions such as hyperlinking,
> completion and real-time type checking are working reliably on large
> projects. This release is a firm foundation on which the IDE can grow
> to support all the features of a modern IDE.
>
> Requirements:
> - Eclipse 3.6.x (Helios)
> Download:
David Bernard
Alex Black
"Help installing"
On Mar 31, 3:47 pm, David Bernard <david.bernard...@gmail.com> wrote:
> https://www.assembla.com/wiki/show/scala-ide/Setup
> <https://www.assembla.com/wiki/show/scala-ide/Setup>Where do you get the
> link ? (I removed the one from the deprecated Help page)
>
>
>
>
>
>
>
> On Thu, Mar 31, 2011 at 21:18, Alex Black <a...@alexblack.ca> wrote:
> > Sounds like great progress, I am excited to try it out.
>
> > I just installed Eclipse 3.6.2 fresh, and decided I better refer to
> > the instructions on how to setup the Eclipse plugin, so ended up here:
>
Alex Black
Eclipse 3.6.2, and after installing the scala plugin, I get this
dialog each time I start eclipse:
http://img6.imagebanana.com/img/9mkn4rhu/scala1.png
which then shows me this dialog:
http://img6.imagebanana.com/img/zc1s1jg7/scala2.png
any ideas?
> --------------------------------------------
> Almost at the same time with the 2.9.0-RC1 release of the Scala
> language, we are happy to announce a first beta of the
> Scala IDE for Eclipse!
>
> The new Scala IDE contains a completely revamped compiler interface
> that promises to deliver better responsiveness, reliability, no
> lock-ups and excellent semantic actions. Actions such as hyperlinking,
> completion and real-time type checking are working reliably on large
> projects. This release is a firm foundation on which the IDE can grow
> to support all the features of a modern IDE.
>
> Requirements:
> - Eclipse 3.6.x (Helios)
> Download:
Alex Black
good!
Issues:
1. I wish I could use this with Scala 2.8.1... Otherwise I have to
deal with both upgrades at once. Many of my unit tests fail for some
reason on 2.9.0RC1 that pass on 2.8.1.
2. For 2 of my projects so far, I get the dreaded "no junit 4 tests
found" when I try to run my unit tests. If however, I open some the
unit tests files, then it will run them. This used to be a big
problem with the 2.7.7 IDE, and I've had no problems like this on 2.8
and 2.8.1 IDEs.
3. The IDE still doesn't work with multiple projects. E.g. Import two
projects, project B depends on project A. If you rename a method in
project A, project B still compiles using the old method, but the
presentation compiler seems to pickup the change, and underlines the
code claiming there is a problem, but no problems are reported by the
compiler.
Positive:
- The IDE no longer freezes for 45s when I start my project up...
nice :)
Still to find out:
- hopefully the IDE no longer locks up randomly
> --------------------------------------------
> Almost at the same time with the 2.9.0-RC1 release of the Scala
> language, we are happy to announce a first beta of the
> Scala IDE for Eclipse!
>
> The new Scala IDE contains a completely revamped compiler interface
> that promises to deliver better responsiveness, reliability, no
> lock-ups and excellent semantic actions. Actions such as hyperlinking,
> completion and real-time type checking are working reliably on large
> projects. This release is a firm foundation on which the IDE can grow
> to support all the features of a modern IDE.
>
> Requirements:
> - Eclipse 3.6.x (Helios)
> Download:
iulian dragos
> Hi, I've just installed the Beta IDE plugin, in a fresh install of
> Eclipse 3.6.2, and after installing the scala plugin, I get this
> dialog each time I start eclipse:
>
> http://img6.imagebanana.com/img/9mkn4rhu/scala1.png
>
> which then shows me this dialog:
>
> http://img6.imagebanana.com/img/zc1s1jg7/scala2.png
>
> any ideas?
This is supposed to help people get reasonable settings... Sorry if it
is confusing. There are several (more or less hidden) options in
Eclipse that affect the behavior of the Scala plugin. First and
foremost, JDT weaving has to be enabled for anything to work. Second,
you need more heap than the default (500MB). There is also the JDT
content assist proposal setting (sometimes Java Proposals is
unchecked, see https://www.assembla.com/wiki/show/scala-ide/Known_Issues)
and the delay for automatic content assist (default is too short, and
it may be annoying to have to wait for completions after pressing a
'.').
iulian
--
iulian dragos
On Thu, Mar 31, 2011 at 10:52 PM, Alex Black <al...@alexblack.ca> wrote:
> So I'm just trying it out so far, in a lot of ways it seems really
> good!
>
> Issues:
>
> 1. I wish I could use this with Scala 2.8.1... Otherwise I have to
> deal with both upgrades at once. Many of my unit tests fail for some
> reason on 2.9.0RC1 that pass on 2.8.1.
We may be able to release something for 2.8 in the near future, but that depends on the plans of the Scala team.
> 2. For 2 of my projects so far, I get the dreaded "no junit 4 tests
> found" when I try to run my unit tests. If however, I open some the
> unit tests files, then it will run them. This used to be a big
> problem with the 2.7.7 IDE, and I've had no problems like this on 2.8
> and 2.8.1 IDEs.
>
> 3. The IDE still doesn't work with multiple projects. E.g. Import two
> projects, project B depends on project A. If you rename a method in
> project A, project B still compiles using the old method, but the
> presentation compiler seems to pickup the change, and underlines the
> code claiming there is a problem, but no problems are reported by the
> compiler.
iulian
Nils Kilden-Pedersen
2. For 2 of my projects so far, I get the dreaded "no junit 4 tests
found" when I try to run my unit tests. If however, I open some the
unit tests files, then it will run them. This used to be a big
problem with the 2.7.7 IDE, and I've had no problems like this on 2.8
and 2.8.1 IDEs.
I get this all the time on the 2.8.1 IDE too. Solution, as you describe, is to open the files.
Alex Black
> This is supposed to help people get reasonable settings... Sorry if it
> is confusing. There are several (more or less hidden) options in
> Eclipse that affect the behavior of the Scala plugin.
*every* time I start eclipse, even after I've attempted to use the
recommend settings it suggests.
Looks like someone else has the same issue:
http://groups.google.com/group/scala-ide-user/browse_thread/thread/76c03903f736ff97
Alex Black
> almost all 'intelligent' behavior, and simply 2.8.1 doesn't have nearly as
> good support for interactive compilation. There is David Bernarnd's backport
> branch which ported many of the changes in 2.9 to 2.8.1.
> > 2. For 2 of my projects so far, I get the dreaded "no junit 4 tests
> > found" when I try to run my unit tests. If however, I open some the
> > unit tests files, then it will run them. This used to be a big
> > problem with the 2.7.7 IDE, and I've had no problems like this on 2.8
> > and 2.8.1 IDEs.
>
> Are your projects open source? It would be good to get a ticket with a
> reproducible test case.
> Project dependencies don't work right now. That's something we know, and
> will be fixed with SBT integration (basically, using SBT for computing
> dependencies and what needs to be recompiled on a change)
That sounds awesome.
Is this meant to be working in 2.8 for maven projects? It sort of
works for me, but not really. But, I'm overall a bit confused about
using m2eclipse vs not, and whether or not I have thing setup
"properly".
What is the best/recommended way to use the Scala IDE 2.8.1 with a
multi-project maven pom file?
> .
Hubert Plociniczak
That is fixed already in trunk (for reference it is ticket #1000331
on
assembla). Next release will include it.
Thanks,
hubert
David Bernard
What is the best/recommended way to use the Scala IDE 2.8.1 with a
multi-project maven pom file?
matt
> > 3. The IDE still doesn't work with multiple projects. E.g. Import two
> > projects, project B depends on project A. If you rename a method in
> > project A, project B still compiles using the old method, but the
> > presentation compiler seems to pickup the change, and underlines the
> > code claiming there is a problem, but no problems are reported by the
> > compiler.
>
> Project dependencies don't work right now. That's something we know, and
> will be fixed with SBT integration (basically, using SBT for computing
> dependencies and what needs to be recompiled on a change)
> .
>
> iulian
Hi Iulian,
Can I humbly ask why it needs to be coupled to SBT? Some of us have
fairly extensive build systems that we are not keen to re-write.
I'm naively thinking that project dependencies should be able to
solely rely on eclipse integration, but granted I'm no expert on that
front.
Thanks,
-matt
David Bernard
Mathieu Gervais
-matt
Alex Black
blank!
https://www.assembla.com/wiki/show/scala-ide/Requirements_and_Installation
Miles Sabin
> This link is still there on the main page, and the page is still
> blank!
>
> https://www.assembla.com/wiki/show/scala-ide/Requirements_and_Installation
Thanks for the heads up ... fixed now ...
Cheers,
Miles
--
Miles Sabin
tel: +44 7813 944 528
gtalk: mi...@milessabin.com
skype: milessabin
http://www.chuusai.com/
http://twitter.com/milessabin