CODEWITHSUNDEEP
eclipsescalaautocomplete
Patrick Arnesen
Patrick Arnesen

Reputation: 1148

Scala Eclipse Autocomplete Broken?

I'm trying to get autocomplete working in eclipse for scala development. I'm trying to reference a java class from a Scala class, and the autocomplete feature never finds it.

for example take this scala class:

object Main {
 def main(args: Array[String]) {
  val btn = new JButton
 }
}

When I hit ctrl+space at the end of typing JButton autocomplete finds "Arr", "asof", "case", "catch", "def" etc... but no classes.

in Window->Preferences->Java->Editor->Content Assist->Advanced I have selected under "Default Proposal Kinds":

Java Proposals, Java Type Proposals, SWT Template Proposals and Template Proposals.

I'm using the Scala 2.8.0-final plugin under Eclipse 3.5.2, in Windows 7

Has anyone else encountered this problem? Any solutions?

Upvotes: 15

Views: 7457

Answers (4)

Matt R
Matt R

Reputation: 10493

That type of auto-completion is not yet supported by the Scala plug-in. You can get a similar result by waiting for the compile error to appear, pressing Ctrl-1, and selecting the quick fix to automatically import the type.

See the "Quick fix imports" section in this "New and noteworthy" post.

Update September 2011:

Luc Bourlier has committed an improvement for this to give autocompletion for types on the classpath. It will be in the next beta (2.0.0-beta11), or grab a nightly build.

Upvotes: 3

cayhorstmann
cayhorstmann

Reputation: 3371

I had the same problem, and the solution was simple. Pick the menu option Scala -> Run Setup Diagnostics.

I clicked everything that was called "recommended", and autocomplete started working. I am pretty sure I had done this previously, but the settings might have gotten lost in an update.

enter image description here

Upvotes: 2

sdespolit
sdespolit

Reputation: 913

here is a simple workaround: https://www.assembla.com/spaces/scala-ide/wiki/Known_Issues#no_completions_available

Upvotes: 2

Miles Sabin
Miles Sabin

Reputation: 23046

The best place for questions like this is the Scala IDE user mailing list.

Upvotes: 2

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