fix: valid file and dir

src/main/java/io/github/linwancen/plugin/show/cache/LineEndCacheUtils.java

@@ -67,16 +67,20 @@ public class LineEndCacheUtils {
 
     private static void cacheUpdate(Project project, Map<VirtualFile, Map<Integer, LineEndCache>> fileMap) {
         try {
-            fileMap.forEach((file, lineMap) -> lineMap.forEach((lineNumber, lineCache) -> {
+            if (project.isDisposed() || DumbService.isDumb(project)) {
+                return;
+            }
+            fileMap.forEach((file, lineMap) -> {
+                if (!file.isValid()) {
+                    return;
+                }
+                lineMap.forEach((lineNumber, lineCache) -> {
                     @NotNull LineInfo info = lineCache.info;
                     @Nullable List<LineExtensionInfo> list = lineCache.map.get(info.text);
                     if (!(lineCache.needUpdate() || list == null)) {
                         return;
                     }
                     try {
-                    if (project.isDisposed() || DumbService.isDumb(project) || !file.isValid()) {
-                        return;
-                    }
                         @Nullable LineExtensionInfo lineExt = LineEnd.lineExt(info);
                         @Nullable LineInfo info2 = LineInfo.of(info, lineNumber);
                         if (info2 == null || !info2.text.equals(info.text)) {
@@ -106,7 +110,8 @@ public class LineEndCacheUtils {
                             LOG.info("LineEndCacheUtils lineMap.forEach catch Throwable but log to record.", e);
                         }
                     }
-            }));
+                });
+            });
         } catch (ProcessCanceledException ignored) {
         } catch (IllegalStateException ignore) {
             // ignore inSmartMode(project) throw:

src/main/java/io/github/linwancen/plugin/show/lang/XmlLangDoc.java

@@ -41,7 +41,7 @@ public class XmlLangDoc extends BaseLangDoc {
     public @Nullable <T extends SettingsInfo> String treeDoc(@NotNull T info, @NotNull ProjectViewNode<?> node,
                                                              @NotNull Project project) {
         @Nullable VirtualFile virtualFile = node.getVirtualFile();
-        if (virtualFile == null) {
+        if (virtualFile == null || virtualFile.isDirectory()) {
             return null;
         }
         @Nullable FileViewProvider viewProvider = PsiManager.getInstance(project).findViewProvider(virtualFile);

src/main/java/io/github/linwancen/plugin/show/lang/base/BaseLangDoc.java

@@ -59,7 +59,13 @@ public abstract class BaseLangDoc extends EditorLinePainter {
         if (viewProvider == null) {
             return null;
         }
-        @Nullable PsiElement element = viewProvider.findElementAt(info.endOffset);
+        @Nullable PsiElement element;
+        try {
+            element = viewProvider.findElementAt(info.endOffset);
+        } catch (Throwable ignored) {
+            // InvalidVirtualFileAccessException
+            return null;
+        }
         if (element == null) {
             // file end
             element = viewProvider.findElementAt(info.endOffset - 1);
@@ -177,6 +183,9 @@ public abstract class BaseLangDoc extends EditorLinePainter {
     public static @Nullable <T extends SettingsInfo> String resolveDoc(@NotNull T info,
                                                                        @NotNull PsiElement psiElement) {
         try {
+            if (!psiElement.isValid()) {
+                return null;
+            }
             // byte to src
             PsiElement navElement = psiElement.getNavigationElement();
             if (navElement != null) {