Scala IDE for Eclipse beta7 for Scala 2.9.0-1

В письме от Wed, 29 Jun 2011 21:01:30 +0400, Miles Sabin
сообщал:

Little glitch there.

Make tabula rasa Eclipse + Scala installation
Now got File - New - New Scala Application

There'd be error, that project should be created before application.
In the error windows, there are two buttons, Finish and Cancel. Only the
latter works.
Hence Finish is to be hidden or grayed out i guess. Or do some actions.

PS: also i think the very menu item "new / Scala Application" is to be
greyed out if creation is not possible right now. Same for creating Scala
Object, etc

PPS: and i think that error windows looks strange, having only footer and
no main text - empty main white section.
I guess, there'd be some short text description and/or URL to tell newbs,
why application is not possible without package/project, how JVM
applications are structured, etc.
Just a small intro for refugees from native IDEs like C++, etc where
application is a project per se.

---
So i created a package. then the application there, all defaults with
custom names.

Then i try (incorrect) example from
http://www.scala-lang.org/api/current/index.html#scala.App

I just pasted it and initially got a frankenstein-like (maybe it is too
detailed, but i don't know when compilation get into and filled Error Log
view, so i try to be detailed)

~~~~~~~~~~~
object HWorld object Main extends App {
Console.println("Hello World: " + (arguments mkString ", "))
}
}
~~~~~~~~~~~

fixed three errors there and looked at Error Log.
It was full of assertions - don't know if it is expected or what.
~~~~~~~~~~~~~~~~~~
java.lang.AssertionError: assertion failed
at scala.Predef$.assert(Predef.scala:89)
at
scala.tools.eclipse.wizards.NewResourceWizard$class.pkg(NewResourceWizard.scala:132)
at
scala.tools.eclipse.wizards.NewApplicationWizard.pkg(NewApplicationWizard.scala:18)
at
scala.tools.eclipse.wizards.NewResourceWizard$class.performFinish(NewResourceWizard.scala:138)
at
scala.tools.eclipse.wizards.NewApplicationWizard.performFinish(NewApplicationWizard.scala:18)
at
org.eclipse.jface.wizard.WizardDialog.finishPressed(WizardDialog.java:827)
at
org.eclipse.jface.wizard.WizardDialog.buttonPressed(WizardDialog.java:432)
at org.eclipse.jface.dialogs.Dialog$2.widgetSelected(Dialog.java:624)
at
org.eclipse.swt.widgets.TypedListener.handleEvent(TypedListener.java:240)
at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:84)
at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1053)
at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:4165)
at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3754)
at org.eclipse.jface.window.Window.runEventLoop(Window.java:825)
at org.eclipse.jface.window.Window.open(Window.java:801)
at
org.eclipse.ui.internal.actions.NewWizardShortcutAction.run(NewWizardShortcutAction.java:135)
at org.eclipse.jface.action.Action.runWithEvent(Action.java:498)
at
org.eclipse.jface.action.ActionContributionItem.handleWidgetSelection(ActionContributionItem.java:584)
at
org.eclipse.jface.action.ActionContributionItem.access$2(ActionContributionItem.java:501)
at
org.eclipse.jface.action.ActionContributionItem$5.handleEvent(ActionContributionItem.java:411)
at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:84)
at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1053)
at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:4165)
at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3754)
at org.eclipse.ui.internal.Workbench.runEventLoop(Workbench.java:2696)
at org.eclipse.ui.internal.Workbench.runUI(Workbench.java:2660)
at org.eclipse.ui.internal.Workbench.access$4(Workbench.java:2494)
at org.eclipse.ui.internal.Workbench$7.run(Workbench.java:674)
at
org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:332)
at
org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:667)
at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:149)
at
org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:123)
at
org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:196)
at
org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:110)
at
org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:79)
at
org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:344)
at
org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:179)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:622)
at org.eclipse.equinox.launcher.Main.basicRun(Main.java:577)
at org.eclipse.equinox.launcher.Main.run(Main.java:1410)
at org.eclipse.equinox.launcher.Main.main(Main.java:1386)
~~~~~~~~~~~~~~~

It's great to have an Organize Imports, but I'm experiencing the following behavior: It adds imports for definitions that are already visible, sometimes items that are defined in the same file, and also using package outer; package inner; items in package outer are imported.

On Wed, Jun 29, 2011 at 9:18 PM, Arioch <the_Arioch@nm.ru> wrote:

В письме от Wed, 29 Jun 2011 21:01:30 +0400, Miles Sabin
<miles@milessabin.com> сообщал:

Little glitch there.

Make tabula rasa Eclipse + Scala installation
Now got File - New - New Scala Application

There'd be error, that project should be created before application.
In the error windows, there are two buttons, Finish and Cancel. Only the
latter works.
Hence Finish is to be hidden or grayed out i guess. Or do some actions.


PS: also i think the very menu item "new / Scala Application" is to be
greyed out if creation is not possible right now. Same for creating Scala
Object, etc

PPS: and i think that error windows looks strange, having only footer and
no main text - empty main white section.
I guess, there'd be some short text description and/or URL to tell newbs,
why application is not possible without package/project, how JVM
applications are structured, etc.
Just a small intro for refugees from native IDEs like C++, etc where
application is a project per se.

---
So i created a package. then the application there, all defaults with custom names.

Then i try (incorrect) example from  http://www.scala-lang.org/api/current/index.html#scala.App


I just pasted it and initially got a frankenstein-like (maybe it is too detailed, but i don't know when compilation get into and filled Error Log view, so i try to be detailed)

~~~~~~~~~~~
object HWorld  object Main extends App {
    Console.println("Hello World: " + (arguments mkString ", "))
  }
}
~~~~~~~~~~~

fixed three errors there and looked at Error Log.
It was full of assertions - don't know if it is expected or what.
~~~~~~~~~~~~~~~~~~
java.lang.AssertionError: assertion failed
       at scala.Predef$.assert(Predef.scala:89)
       at scala.tools.eclipse.wizards.NewResourceWizard$class.pkg(NewResourceWizard.scala:132)
       at scala.tools.eclipse.wizards.NewApplicationWizard.pkg(NewApplicationWizard.scala:18)
       at scala.tools.eclipse.wizards.NewResourceWizard$class.performFinish(NewResourceWizard.scala:138)
       at scala.tools.eclipse.wizards.NewApplicationWizard.performFinish(NewApplicationWizard.scala:18)
       at org.eclipse.jface.wizard.WizardDialog.finishPressed(WizardDialog.java:827)
       at org.eclipse.jface.wizard.WizardDialog.buttonPressed(WizardDialog.java:432)
       at org.eclipse.jface.dialogs.Dialog$2.widgetSelected(Dialog.java:624)
       at org.eclipse.swt.widgets.TypedListener.handleEvent(TypedListener.java:240)
       at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:84)
       at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1053)
       at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:4165)
       at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3754)
       at org.eclipse.jface.window.Window.runEventLoop(Window.java:825)
       at org.eclipse.jface.window.Window.open(Window.java:801)
       at org.eclipse.ui.internal.actions.NewWizardShortcutAction.run(NewWizardShortcutAction.java:135)
       at org.eclipse.jface.action.Action.runWithEvent(Action.java:498)
       at org.eclipse.jface.action.ActionContributionItem.handleWidgetSelection(ActionContributionItem.java:584)
       at org.eclipse.jface.action.ActionContributionItem.access$2(ActionContributionItem.java:501)
       at org.eclipse.jface.action.ActionContributionItem$5.handleEvent(ActionContributionItem.java:411)
       at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:84)
       at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1053)
       at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:4165)
       at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3754)
       at org.eclipse.ui.internal.Workbench.runEventLoop(Workbench.java:2696)
       at org.eclipse.ui.internal.Workbench.runUI(Workbench.java:2660)
       at org.eclipse.ui.internal.Workbench.access$4(Workbench.java:2494)
       at org.eclipse.ui.internal.Workbench$7.run(Workbench.java:674)
       at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:332)
       at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:667)
       at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:149)
       at org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:123)
       at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:196)
       at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:110)
       at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:79)
       at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:344)
       at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:179)
       at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
       at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
       at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
       at java.lang.reflect.Method.invoke(Unknown Source)
       at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:622)
       at org.eclipse.equinox.launcher.Main.basicRun(Main.java:577)
       at org.eclipse.equinox.launcher.Main.run(Main.java:1410)
       at org.eclipse.equinox.launcher.Main.main(Main.java:1386)
~~~~~~~~~~~~~~~