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IllegalStateException when formatting [message #1776316] Wed, 15 November 2017 04:37 Go to next message
Eclipse UserFriend
Hello,

Im getting following issue:
1927597 [main] ERROR org.eclipse.xtext.ui.editor.formatting2.ContentFormatter$FormattingUnitOfWork  - Error formatting platform:/resource/de.ubt.ai1.athena.testPluginProject/src/test.athena: null
java.lang.IllegalStateException
	at org.eclipse.xtext.formatting2.regionaccess.internal.NodeModelBasedRegionAccessBuilder.process(NodeModelBasedRegionAccessBuilder.java:229)
	at org.eclipse.xtext.formatting2.regionaccess.internal.NodeModelBasedRegionAccessBuilder.process(NodeModelBasedRegionAccessBuilder.java:220)
	at org.eclipse.xtext.formatting2.regionaccess.internal.NodeModelBasedRegionAccessBuilder.process(NodeModelBasedRegionAccessBuilder.java:220)
	at org.eclipse.xtext.formatting2.regionaccess.internal.NodeModelBasedRegionAccessBuilder.process(NodeModelBasedRegionAccessBuilder.java:220)
	at org.eclipse.xtext.formatting2.regionaccess.internal.NodeModelBasedRegionAccessBuilder.process(NodeModelBasedRegionAccessBuilder.java:220)
	at org.eclipse.xtext.formatting2.regionaccess.internal.NodeModelBasedRegionAccessBuilder.process(NodeModelBasedRegionAccessBuilder.java:220)
	at org.eclipse.xtext.formatting2.regionaccess.internal.NodeModelBasedRegionAccessBuilder.process(NodeModelBasedRegionAccessBuilder.java:220)
	at org.eclipse.xtext.formatting2.regionaccess.internal.NodeModelBasedRegionAccessBuilder.process(NodeModelBasedRegionAccessBuilder.java:220)
	at org.eclipse.xtext.formatting2.regionaccess.internal.NodeModelBasedRegionAccessBuilder.process(NodeModelBasedRegionAccessBuilder.java:220)
	at org.eclipse.xtext.formatting2.regionaccess.internal.NodeModelBasedRegionAccessBuilder.process(NodeModelBasedRegionAccessBuilder.java:220)
	at org.eclipse.xtext.formatting2.regionaccess.internal.NodeModelBasedRegionAccessBuilder.process(NodeModelBasedRegionAccessBuilder.java:220)
	at org.eclipse.xtext.formatting2.regionaccess.internal.NodeModelBasedRegionAccessBuilder.process(NodeModelBasedRegionAccessBuilder.java:220)
	at org.eclipse.xtext.formatting2.regionaccess.internal.NodeModelBasedRegionAccessBuilder.process(NodeModelBasedRegionAccessBuilder.java:220)
	at org.eclipse.xtext.formatting2.regionaccess.internal.NodeModelBasedRegionAccessBuilder.process(NodeModelBasedRegionAccessBuilder.java:220)
	at org.eclipse.xtext.formatting2.regionaccess.internal.NodeModelBasedRegionAccessBuilder.process(NodeModelBasedRegionAccessBuilder.java:220)
	at org.eclipse.xtext.formatting2.regionaccess.internal.NodeModelBasedRegionAccessBuilder.process(NodeModelBasedRegionAccessBuilder.java:220)
	at org.eclipse.xtext.formatting2.regionaccess.internal.NodeModelBasedRegionAccessBuilder.process(NodeModelBasedRegionAccessBuilder.java:220)
	at org.eclipse.xtext.formatting2.regionaccess.internal.NodeModelBasedRegionAccessBuilder.getEObjectToTokensMap(NodeModelBasedRegionAccessBuilder.java:87)
	at org.eclipse.xtext.formatting2.regionaccess.internal.NodeModelBasedRegionAccess.<init>(NodeModelBasedRegionAccess.java:29)
	at org.eclipse.xtext.formatting2.regionaccess.internal.NodeModelBasedRegionAccessBuilder.create(NodeModelBasedRegionAccessBuilder.java:58)
	at org.eclipse.xtext.formatting2.regionaccess.TextRegionAccessBuilder.create(TextRegionAccessBuilder.java:37)
	at org.eclipse.xtext.ui.editor.formatting2.ContentFormatter.initRequest(ContentFormatter.java:126)
	at org.eclipse.xtext.ui.editor.formatting2.ContentFormatter.exec(ContentFormatter.java:88)
	at org.eclipse.xtext.ui.editor.formatting2.ContentFormatter$FormattingUnitOfWork.exec(ContentFormatter.java:57)
	at org.eclipse.xtext.ui.editor.formatting2.ContentFormatter$FormattingUnitOfWork.exec(ContentFormatter.java:1)
	at org.eclipse.xtext.resource.OutdatedStateManager.exec(OutdatedStateManager.java:91)
	at org.eclipse.xtext.ui.editor.model.XtextDocument$XtextDocumentLocker.internalReadOnly(XtextDocument.java:520)
	at org.eclipse.xtext.ui.editor.model.XtextDocument$XtextDocumentLocker.priorityReadOnly(XtextDocument.java:485)
	at org.eclipse.xtext.ui.editor.model.XtextDocument.priorityReadOnly(XtextDocument.java:142)
	at org.eclipse.xtext.ui.editor.formatting2.ContentFormatter.format(ContentFormatter.java:103)
	at org.eclipse.jface.text.source.SourceViewer.doOperation(SourceViewer.java:992)
	at org.eclipse.jface.text.source.projection.ProjectionViewer.doOperation(ProjectionViewer.java:1461)
	at org.eclipse.ui.texteditor.TextOperationAction$1.run(TextOperationAction.java:130)
	at org.eclipse.swt.custom.BusyIndicator.showWhile(BusyIndicator.java:70)
	at org.eclipse.ui.texteditor.TextOperationAction.run(TextOperationAction.java:127)
	at org.eclipse.jface.action.Action.runWithEvent(Action.java:473)
	at org.eclipse.jface.commands.ActionHandler.execute(ActionHandler.java:118)
	at org.eclipse.ui.internal.handlers.E4HandlerProxy.execute(E4HandlerProxy.java:92)
	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.e4.core.internal.di.MethodRequestor.execute(MethodRequestor.java:55)
	at org.eclipse.e4.core.internal.di.InjectorImpl.invokeUsingClass(InjectorImpl.java:305)
	at org.eclipse.e4.core.internal.di.InjectorImpl.invoke(InjectorImpl.java:239)
	at org.eclipse.e4.core.contexts.ContextInjectionFactory.invoke(ContextInjectionFactory.java:132)
	at org.eclipse.e4.core.commands.internal.HandlerServiceHandler.execute(HandlerServiceHandler.java:152)
	at org.eclipse.core.commands.Command.executeWithChecks(Command.java:494)
	at org.eclipse.core.commands.ParameterizedCommand.executeWithChecks(ParameterizedCommand.java:487)
	at org.eclipse.e4.core.commands.internal.HandlerServiceImpl.executeHandler(HandlerServiceImpl.java:210)
	at org.eclipse.e4.ui.bindings.keys.KeyBindingDispatcher.executeCommand(KeyBindingDispatcher.java:287)
	at org.eclipse.e4.ui.bindings.keys.KeyBindingDispatcher.press(KeyBindingDispatcher.java:527)
	at org.eclipse.e4.ui.bindings.keys.KeyBindingDispatcher.processKeyEvent(KeyBindingDispatcher.java:577)
	at org.eclipse.e4.ui.bindings.keys.KeyBindingDispatcher.filterKeySequenceBindings(KeyBindingDispatcher.java:385)
	at org.eclipse.e4.ui.bindings.keys.KeyBindingDispatcher.access$0(KeyBindingDispatcher.java:331)
	at org.eclipse.e4.ui.bindings.keys.KeyBindingDispatcher$KeyDownFilter.handleEvent(KeyBindingDispatcher.java:88)
	at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:86)
	at org.eclipse.swt.widgets.Display.filterEvent(Display.java:1271)
	at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1078)
	at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1103)
	at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1088)
	at org.eclipse.swt.widgets.Widget.sendKeyEvent(Widget.java:1130)
	at org.eclipse.swt.widgets.Widget.sendKeyEvent(Widget.java:1126)
	at org.eclipse.swt.widgets.Widget.wmChar(Widget.java:1547)
	at org.eclipse.swt.widgets.Control.WM_CHAR(Control.java:4962)
	at org.eclipse.swt.widgets.Canvas.WM_CHAR(Canvas.java:364)
	at org.eclipse.swt.widgets.Control.windowProc(Control.java:4843)
	at org.eclipse.swt.widgets.Canvas.windowProc(Canvas.java:359)
	at org.eclipse.swt.widgets.Display.windowProc(Display.java:5178)
	at org.eclipse.swt.internal.win32.OS.DispatchMessageW(Native Method)
	at org.eclipse.swt.internal.win32.OS.DispatchMessage(OS.java:2560)
	at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3815)
	at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine$5.run(PartRenderingEngine.java:1150)
	at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:336)
	at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.run(PartRenderingEngine.java:1039)
	at org.eclipse.e4.ui.internal.workbench.E4Workbench.createAndRunUI(E4Workbench.java:153)
	at org.eclipse.ui.internal.Workbench.lambda$3(Workbench.java:680)
	at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:336)
	at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:594)
	at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:148)
	at org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:151)
	at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:196)
	at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:134)
	at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:104)
	at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:388)
	at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:243)
	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:653)
	at org.eclipse.equinox.launcher.Main.basicRun(Main.java:590)
	at org.eclipse.equinox.launcher.Main.run(Main.java:1499)
	at org.eclipse.equinox.launcher.Main.main(Main.java:1472)


when calling the formatter on this code:
type Point : structure {
	attribute x : integer;
	attribute y : integer;
}

main {	
	variable a : integer;
	a <-- 3;
	
	variable b : integer;
	b <-- a; 	// works fine
	
	variable p : Point;
	p.x <-- 2; 	// works fine
	p.y <-- a; 	// IllegalStateException 
	_output(p);
}


The formatter works fine except for similar cases like in the code above.
In such cases the execution stops with the error before I even get into the formatter.
Xtend IDE and Xtext Complete SDK are updated to version 2.13.0.v20171020-0920.
The code generation works fine (with traced codegen).

The formatter is the generated stub with some extensions to see if it works:
class AthenaFormatter extends AbstractFormatter2 {
	
	@Inject extension AthenaGrammarAccess

	def dispatch void format(Program program, extension IFormattableDocument document) {
		// TODO: format HiddenRegions around keywords, attributes, cross references, etc. 
		for (TypeDeclaration typeDeclaration : program.getTypeDeclarations()) {
			typeDeclaration.format;
			typeDeclaration.append[setNewLines(2)];
		}
		for (Operation operation : program.getOperations()) {
			operation.format;
			operation.append[setNewLines(2)];
		}
		program.getMainBlock.format;
	}

	def dispatch void format(Enumeration enumeration, extension IFormattableDocument document) {
		// TODO: format HiddenRegions around keywords, attributes, cross references, etc. 
		for (EnumTypeValue enumTypeValue : enumeration.getValues()) {
			enumTypeValue.format;
		}
	}
	
	// TODO: implement for Composition, Operation, Block, Return, Conditional, WhileLoop, ForEachLoop, OperationCall, Attribute, Parameter, VariableDeclaration, Assignment, QualifiedAccess, Xor, Or, And, Equality, Comparison, AddSub, MulDiv, Exponent, Cast, ParenthesizedExpression, Not, Reference, ListDeclaration, ListInitRepetition, ListInitRange, ListInitElements
}



Regards,
Nikita.
Re: IllegalStateException when formatting [message #1776332 is a reply to message #1776316] Wed, 15 November 2017 07:20 Go to previous messageGo to next message
Eclipse UserFriend
this sounds like a bug to me. can you open a issue at github.com/eclipse/xtext-core
Re: IllegalStateException when formatting [message #1776344 is a reply to message #1776332] Wed, 15 November 2017 08:57 Go to previous message
Eclipse UserFriend
Opened an issue:
https://github.com/eclipse/xtext-core/issues/548
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