import com.intellij.codeInsight.highlighting.HighlightErrorFilter; //导入依赖的package包/类
private static boolean hasErrorElements(@NotNull final PsiElement element) {
  if (element instanceof PsiErrorElement) {
    HighlightErrorFilter[] errorFilters = Extensions.getExtensions(HighlightErrorFilter.EP_NAME, element.getProject());
    for (HighlightErrorFilter errorFilter : errorFilters) {
      if (!errorFilter.shouldHighlightErrorElement((PsiErrorElement)element)) {
        return false;
      }
    }
    return true;
  }
  for (PsiElement child : element.getChildren()) {
    if (hasErrorElements(child)) {
      return true;
    }
  }
  return false;
}
 

import com.intellij.codeInsight.highlighting.HighlightErrorFilter; //导入依赖的package包/类
private static boolean hasErrorElements(@Nonnull final PsiElement element) {
  if (element instanceof PsiErrorElement) {
    HighlightErrorFilter[] errorFilters = Extensions.getExtensions(HighlightErrorFilter.EP_NAME, element.getProject());
    for (HighlightErrorFilter errorFilter : errorFilters) {
      if (!errorFilter.shouldHighlightErrorElement((PsiErrorElement)element)) {
        return false;
      }
    }
    return true;
  }
  for (PsiElement child : element.getChildren()) {
    if (hasErrorElements(child)) {
      return true;
    }
  }
  return false;
}
 

import com.intellij.codeInsight.highlighting.HighlightErrorFilter; //导入依赖的package包/类
public DefaultHighlightVisitor(@NotNull Project project, boolean highlightErrorElements, boolean runAnnotators, boolean batchMode) {
  myProject = project;
  myHighlightErrorElements = highlightErrorElements;
  myRunAnnotators = runAnnotators;
  myErrorFilters = Extensions.getExtensions(HighlightErrorFilter.EP_NAME, project);
  myDumbService = DumbService.getInstance(project);
  myBatchMode = batchMode;
}
 

import com.intellij.codeInsight.highlighting.HighlightErrorFilter; //导入依赖的package包/类
private void visitErrorElement(final PsiErrorElement element) {
  for(HighlightErrorFilter errorFilter: myErrorFilters) {
    if (!errorFilter.shouldHighlightErrorElement(element)) {
      return;
    }
  }
  HighlightInfo info = createErrorElementInfo(element);
  myHolder.add(info);
}
 

import com.intellij.codeInsight.highlighting.HighlightErrorFilter; //导入依赖的package包/类
private void visitErrorElement(final PsiErrorElement element) {
  for(HighlightErrorFilter errorFilter: myErrorFilters) {
    if (!errorFilter.shouldHighlightErrorElement(element)) return;
  }
  HighlightInfo info = createErrorElementInfo(element);
  myHolder.add(info);
}
 

import com.intellij.codeInsight.highlighting.HighlightErrorFilter; //导入依赖的package包/类
DefaultHighlightVisitor(@Nonnull Project project,
                        boolean highlightErrorElements,
                        boolean runAnnotators,
                        boolean batchMode,
                        @Nonnull CachedAnnotators cachedAnnotators) {
  myProject = project;
  myHighlightErrorElements = highlightErrorElements;
  myRunAnnotators = runAnnotators;
  myCachedAnnotators = cachedAnnotators;
  myErrorFilters = Extensions.getExtensions(HighlightErrorFilter.EP_NAME, project);
  myDumbService = DumbService.getInstance(project);
  myBatchMode = batchMode;
}