search

antlr / intellij-plugin-v4

An IntelliJ plugin for ANTLR v4
https://plugins.jetbrains.com/plugin/7358-antlr-v4
BSD 3-Clause "New" or "Revised" License
461 stars 103 forks source link

Structure view shows "loading ..." but nothing comes up #659

Closed fpga-guy closed 11 months ago

fpga-guy commented 11 months ago

I was able to bring up the structure view on my grammar once. The next time I opened the IDEA editor it failed with the following message:

2023-09-01 10:51:15,454 [   7535] SEVERE - #c.i.u.c.Invoker - String index out of range: 0
java.lang.StringIndexOutOfBoundsException: String index out of range: 0
    at java.base/java.lang.StringLatin1.charAt(StringLatin1.java:48)
    at java.base/java.lang.String.charAt(String.java:1517)
    at org.antlr.intellij.plugin.structview.ANTLRv4StructureViewModel$1.lambda$getComparator$0(ANTLRv4StructureViewModel.java:30)
    at com.intellij.ide.util.treeView.smartTree.CachingChildrenTreeNode$CompositeComparator.compare(CachingChildrenTreeNode.java:79)
    at com.intellij.ide.util.treeView.smartTree.CachingChildrenTreeNode$CompositeComparator.compare(CachingChildrenTreeNode.java:67)
    at java.base/java.util.TimSort.countRunAndMakeAscending(TimSort.java:355)
    at java.base/java.util.TimSort.sort(TimSort.java:234)
    at java.base/java.util.Arrays.sort(Arrays.java:1307)
    at java.base/java.util.ArrayList.sort(ArrayList.java:1721)
    at com.intellij.ide.util.treeView.smartTree.CachingChildrenTreeNode.sortChildren(CachingChildrenTreeNode.java:91)
    at com.intellij.ide.util.treeView.smartTree.TreeElementWrapper.performTreeActions(TreeElementWrapper.java:63)
    at com.intellij.ide.util.treeView.smartTree.CachingChildrenTreeNode.rebuildSubtree(CachingChildrenTreeNode.java:208)
    at com.intellij.ide.util.treeView.smartTree.CachingChildrenTreeNode.ensureChildrenAreInitialized(CachingChildrenTreeNode.java:41)
    at com.intellij.ide.util.treeView.smartTree.CachingChildrenTreeNode.getChildren(CachingChildrenTreeNode.java:33)
    at com.intellij.ide.structureView.newStructureView.StructureViewComponent$MyNodeWrapper.getChildren(StructureViewComponent.java:841)
    at com.intellij.ide.util.treeView.smartTree.SmartTreeStructure.getChildElements(SmartTreeStructure.java:62)
    at com.intellij.ui.tree.StructureTreeModel.getValidChildren(StructureTreeModel.java:411)
    at com.intellij.ui.tree.StructureTreeModel.validateChildren(StructureTreeModel.java:329)
    at com.intellij.ui.tree.StructureTreeModel.getNode(StructureTreeModel.java:323)
    at com.intellij.ui.tree.StructureTreeModel.getChildren(StructureTreeModel.java:343)
    at com.intellij.ui.tree.AsyncTreeModel$CmdGetChildren.getNode(AsyncTreeModel.java:568)
    at com.intellij.ui.tree.AsyncTreeModel$Command.get(AsyncTreeModel.java:464)
    at com.intellij.ui.tree.AsyncTreeModel$Command.get(AsyncTreeModel.java:430)
    at com.intellij.util.concurrency.Invoker$Task.run(Invoker.java:306)
    at com.intellij.openapi.application.impl.ApplicationImpl.tryRunReadAction(ApplicationImpl.java:1133)
    at com.intellij.openapi.progress.util.ProgressIndicatorUtils.lambda$runInReadActionWithWriteActionPriority$0(ProgressIndicatorUtils.java:76)
    at com.intellij.openapi.progress.util.ProgressIndicatorUtilService.runActionAndCancelBeforeWrite(ProgressIndicatorUtilService.java:63)
    at com.intellij.openapi.progress.util.ProgressIndicatorUtils.runActionAndCancelBeforeWrite(ProgressIndicatorUtils.java:133)
    at com.intellij.openapi.progress.util.ProgressIndicatorUtils.lambda$runWithWriteActionPriority$1(ProgressIndicatorUtils.java:114)
    at com.intellij.openapi.progress.ProgressManager.lambda$runProcess$0(ProgressManager.java:71)
    at com.intellij.openapi.progress.impl.CoreProgressManager.lambda$runProcess$2(CoreProgressManager.java:186)
    at com.intellij.openapi.progress.impl.CoreProgressManager.lambda$executeProcessUnderProgress$13(CoreProgressManager.java:604)
    at com.intellij.openapi.progress.impl.CoreProgressManager.registerIndicatorAndRun(CoreProgressManager.java:679)
    at com.intellij.openapi.progress.impl.CoreProgressManager.computeUnderProgress(CoreProgressManager.java:635)
    at com.intellij.openapi.progress.impl.CoreProgressManager.executeProcessUnderProgress(CoreProgressManager.java:603)
    at com.intellij.openapi.progress.impl.ProgressManagerImpl.executeProcessUnderProgress(ProgressManagerImpl.java:61)
    at com.intellij.openapi.progress.impl.CoreProgressManager.runProcess(CoreProgressManager.java:173)
    at com.intellij.openapi.progress.ProgressManager.runProcess(ProgressManager.java:71)
    at com.intellij.openapi.progress.util.ProgressIndicatorUtils.runWithWriteActionPriority(ProgressIndicatorUtils.java:111)
    at com.intellij.openapi.progress.util.ProgressIndicatorUtils.runInReadActionWithWriteActionPriority(ProgressIndicatorUtils.java:76)
    at com.intellij.util.concurrency.Invoker.invokeSafely(Invoker.java:188)
    at com.intellij.util.concurrency.Invoker.lambda$offerSafely$0(Invoker.java:165)
    at com.intellij.util.concurrency.Invoker$Background.lambda$offer$0(Invoker.java:433)
    at com.intellij.util.concurrency.BoundedTaskExecutor.doRun(BoundedTaskExecutor.java:249)
    at com.intellij.util.concurrency.BoundedTaskExecutor.access$200(BoundedTaskExecutor.java:31)
    at com.intellij.util.concurrency.BoundedTaskExecutor$1.executeFirstTaskAndHelpQueue(BoundedTaskExecutor.java:227)
    at com.intellij.util.ConcurrencyUtil.runUnderThreadName(ConcurrencyUtil.java:218)
    at com.intellij.util.concurrency.BoundedTaskExecutor$1.run(BoundedTaskExecutor.java:215)
    at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136)
    at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635)
    at java.base/java.util.concurrent.Executors$PrivilegedThreadFactory$1$1.run(Executors.java:702)
    at java.base/java.util.concurrent.Executors$PrivilegedThreadFactory$1$1.run(Executors.java:699)
    at java.base/java.security.AccessController.doPrivileged(AccessController.java:399)
    at java.base/java.util.concurrent.Executors$PrivilegedThreadFactory$1.run(Executors.java:699)
    at java.base/java.lang.Thread.run(Thread.java:833)
2023-09-01 10:51:15,459 [   7540] SEVERE - #c.i.u.c.Invoker - IntelliJ IDEA 2023.2.1  Build #IC-232.9559.62
2023-09-01 10:51:15,459 [   7540] SEVERE - #c.i.u.c.Invoker - JDK: 17.0.8; VM: OpenJDK 64-Bit Server VM; Vendor: JetBrains s.r.o.
2023-09-01 10:51:15,459 [   7540] SEVERE - #c.i.u.c.Invoker - OS: Linux
2023-09-01 10:51:15,460 [   7541] SEVERE - #c.i.u.c.Invoker - Plugin to blame: ANTLR v4 version: 1.20

I've tried open/close and the structure still fails to load. As I experiment with possible fixes, I'll update this message.

fpga-guy commented 11 months ago

I deleted the .idea editor configuration directory and re-invoked the application. It created a new project in place. The structure window now displays my .g4 file correctly. I'm not sure what made it get sideways, but this seems to be the solution.

bjansen commented 11 months ago

Looks like a duplicate of #650