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Build Identifier: CDT HEAD Create a source file with the following content, place the cursor to the comment and press Ctrl-Space: void someFunction() { int a[5]; sizeof(a) } This results in the following exception: java.lang.NullPointerException at org.eclipse.cdt.internal.core.dom.parser.ASTQueries.findTypeRelevantDeclarator(ASTQueries.java:107) at org.eclipse.cdt.internal.core.dom.parser.AbstractGNUSourceCodeParser.isValidTypeIDForUnaryExpression(AbstractGNUSourceCodeParser.java:2280) at org.eclipse.cdt.internal.core.dom.parser.AbstractGNUSourceCodeParser.parseTypeidInParenthesisOrUnaryExpression(AbstractGNUSourceCodeParser.java:2187) at org.eclipse.cdt.internal.core.dom.parser.cpp.GNUCPPSourceParser.unaryExpression(GNUCPPSourceParser.java:1103) at org.eclipse.cdt.internal.core.dom.parser.AbstractGNUSourceCodeParser.castExpression(AbstractGNUSourceCodeParser.java:1251) at org.eclipse.cdt.internal.core.dom.parser.cpp.GNUCPPSourceParser.expression(GNUCPPSourceParser.java:707) at org.eclipse.cdt.internal.core.dom.parser.cpp.GNUCPPSourceParser.expression(GNUCPPSourceParser.java:686) at org.eclipse.cdt.internal.core.dom.parser.AbstractGNUSourceCodeParser.parseDeclarationOrExpressionStatement(AbstractGNUSourceCodeParser.java:1838) at org.eclipse.cdt.internal.core.dom.parser.cpp.GNUCPPSourceParser.statement(GNUCPPSourceParser.java:4005) at org.eclipse.cdt.internal.core.dom.parser.AbstractGNUSourceCodeParser.compoundStatement(AbstractGNUSourceCodeParser.java:851) at org.eclipse.cdt.internal.core.dom.parser.AbstractGNUSourceCodeParser.functionBody(AbstractGNUSourceCodeParser.java:1438) at org.eclipse.cdt.internal.core.dom.parser.cpp.GNUCPPSourceParser.functionBody(GNUCPPSourceParser.java:4218) at org.eclipse.cdt.internal.core.dom.parser.AbstractGNUSourceCodeParser.handleFunctionBody(AbstractGNUSourceCodeParser.java:1418) at org.eclipse.cdt.internal.core.dom.parser.cpp.GNUCPPSourceParser.functionDefinition(GNUCPPSourceParser.java:2187) at org.eclipse.cdt.internal.core.dom.parser.cpp.GNUCPPSourceParser.simpleDeclaration(GNUCPPSourceParser.java:2097) at org.eclipse.cdt.internal.core.dom.parser.cpp.GNUCPPSourceParser.declaration(GNUCPPSourceParser.java:1933) at org.eclipse.cdt.internal.core.dom.parser.AbstractGNUSourceCodeParser.declarationList(AbstractGNUSourceCodeParser.java:1332) at org.eclipse.cdt.internal.core.dom.parser.AbstractGNUSourceCodeParser.parseTranslationUnit(AbstractGNUSourceCodeParser.java:1270) at org.eclipse.cdt.internal.core.dom.parser.AbstractGNUSourceCodeParser.translationUnit(AbstractGNUSourceCodeParser.java:1265) at org.eclipse.cdt.internal.core.dom.parser.AbstractGNUSourceCodeParser.parse(AbstractGNUSourceCodeParser.java:646) at org.eclipse.cdt.core.dom.parser.AbstractCLikeLanguage.getCompletionNode(AbstractCLikeLanguage.java:166) at org.eclipse.cdt.internal.core.model.TranslationUnit.getCompletionNode(TranslationUnit.java:894) at org.eclipse.cdt.internal.ui.text.contentassist.CContentAssistInvocationContext.getCompletionNode(CContentAssistInvocationContext.java:159) at org.eclipse.cdt.internal.ui.text.contentassist.ParsingBasedProposalComputer.computeCompletionProposals(ParsingBasedProposalComputer.java:47) at org.eclipse.cdt.internal.ui.text.contentassist.CompletionProposalComputerDescriptor.computeCompletionProposals(CompletionProposalComputerDescriptor.java:300) at org.eclipse.cdt.internal.ui.text.contentassist.CompletionProposalCategory.computeCompletionProposals(CompletionProposalCategory.java:261) at org.eclipse.cdt.internal.ui.text.contentassist.ContentAssistProcessor.collectProposals(ContentAssistProcessor.java:270) at org.eclipse.cdt.internal.ui.text.contentassist.ContentAssistProcessor.computeCompletionProposals(ContentAssistProcessor.java:223) at org.eclipse.jface.text.contentassist.ContentAssistant.computeCompletionProposals(ContentAssistant.java:1834) at org.eclipse.jface.text.contentassist.CompletionProposalPopup.computeProposals(CompletionProposalPopup.java:556) at org.eclipse.jface.text.contentassist.CompletionProposalPopup.access$16(CompletionProposalPopup.java:553) at org.eclipse.jface.text.contentassist.CompletionProposalPopup$14.run(CompletionProposalPopup.java:1544) at org.eclipse.swt.custom.BusyIndicator.showWhile(BusyIndicator.java:70) at org.eclipse.jface.text.contentassist.CompletionProposalPopup.incrementalComplete(CompletionProposalPopup.java:1538) at org.eclipse.jface.text.contentassist.ContentAssistant.showPossibleCompletions(ContentAssistant.java:1659) at org.eclipse.cdt.internal.ui.editor.CEditor$AdaptedSourceViewer.doOperation(CEditor.java:337) at org.eclipse.ui.texteditor.ContentAssistAction$1.run(ContentAssistAction.java:82) at org.eclipse.swt.custom.BusyIndicator.showWhile(BusyIndicator.java:70) at org.eclipse.ui.texteditor.ContentAssistAction.run(ContentAssistAction.java:80) at org.eclipse.jface.action.Action.runWithEvent(Action.java:498) at org.eclipse.ui.commands.ActionHandler.execute(ActionHandler.java:185) at org.eclipse.ui.internal.handlers.LegacyHandlerWrapper.execute(LegacyHandlerWrapper.java:109) at org.eclipse.core.commands.Command.executeWithChecks(Command.java:476) at org.eclipse.core.commands.ParameterizedCommand.executeWithChecks(ParameterizedCommand.java:508) at org.eclipse.ui.internal.handlers.HandlerService.executeCommand(HandlerService.java:169) at org.eclipse.ui.internal.keys.WorkbenchKeyboard.executeCommand(WorkbenchKeyboard.java:468) at org.eclipse.ui.internal.keys.WorkbenchKeyboard.press(WorkbenchKeyboard.java:786) at org.eclipse.ui.internal.keys.WorkbenchKeyboard.processKeyEvent(WorkbenchKeyboard.java:885) at org.eclipse.ui.internal.keys.WorkbenchKeyboard.filterKeySequenceBindings(WorkbenchKeyboard.java:567) at org.eclipse.ui.internal.keys.WorkbenchKeyboard.access$3(WorkbenchKeyboard.java:508) at org.eclipse.ui.internal.keys.WorkbenchKeyboard$KeyDownFilter.handleEvent(WorkbenchKeyboard.java:123) at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:84) at org.eclipse.swt.widgets.Display.filterEvent(Display.java:1525) at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1257) at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1282) at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1267) at org.eclipse.swt.widgets.Widget.sendKeyEvent(Widget.java:1294) at org.eclipse.swt.widgets.Widget.gtk_key_press_event(Widget.java:730) at org.eclipse.swt.widgets.Control.gtk_key_press_event(Control.java:2977) at org.eclipse.swt.widgets.Composite.gtk_key_press_event(Composite.java:734) at org.eclipse.swt.widgets.Widget.windowProc(Widget.java:1743) at org.eclipse.swt.widgets.Control.windowProc(Control.java:4964) at org.eclipse.swt.widgets.Display.windowProc(Display.java:4369) at org.eclipse.swt.internal.gtk.OS._gtk_main_do_event(Native Method) at org.eclipse.swt.internal.gtk.OS.gtk_main_do_event(OS.java:8256) at org.eclipse.swt.widgets.Display.eventProc(Display.java:1239) at org.eclipse.swt.internal.gtk.OS._g_main_context_iteration(Native Method) at org.eclipse.swt.internal.gtk.OS.g_main_context_iteration(OS.java:2258) at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3168) at org.eclipse.ui.internal.Workbench.runEventLoop(Workbench.java:2697) at org.eclipse.ui.internal.Workbench.runUI(Workbench.java:2661) at org.eclipse.ui.internal.Workbench.access$4(Workbench.java:2495) 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:115) 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(NativeMethodAccessorImpl.java:39) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:597) 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) Reproducible: Always
This one might be the same as 338949, but the stack trace looks a bit different.
Created attachment 192002 [details] testcase + fix
Fixed in 8.0 including bug 338949.
*** cdt cvs genie on behalf of mschorn *** Bug 340664: NPE in content assist. [*] BasicCompletionTest.java 1.30 http://dev.eclipse.org/viewcvs/index.cgi/org.eclipse.cdt-core/org.eclipse.cdt.core.tests/parser/org/eclipse/cdt/core/parser/tests/prefix/BasicCompletionTest.java?root=Tools_Project&r1=1.29&r2=1.30 [*] CPPClassScope.java 1.86 http://dev.eclipse.org/viewcvs/index.cgi/org.eclipse.cdt-core/org.eclipse.cdt.core/parser/org/eclipse/cdt/internal/core/dom/parser/cpp/CPPClassScope.java?root=Tools_Project&r1=1.85&r2=1.86 [*] ASTQueries.java 1.9 http://dev.eclipse.org/viewcvs/index.cgi/org.eclipse.cdt-core/org.eclipse.cdt.core/parser/org/eclipse/cdt/internal/core/dom/parser/ASTQueries.java?root=Tools_Project&r1=1.8&r2=1.9
*** Bug 341057 has been marked as a duplicate of this bug. ***
