Java 类com.intellij.psi.impl.source.jsp.jspJava.JspxImportStatement 实例源码

@Nullable
private HighlightInfo processImport(@NotNull PsiImportStatementBase importStatement, @NotNull HighlightDisplayKey unusedImportKey) {
  // jsp include directive hack
  if (importStatement instanceof JspxImportStatement && ((JspxImportStatement)importStatement).isForeignFileImport()) return null;

  if (PsiUtilCore.hasErrorElementChild(importStatement)) return null;

  boolean isRedundant = myRefCountHolder.isRedundant(importStatement);
  if (!isRedundant && !(importStatement instanceof PsiImportStaticStatement)) {
    //check import from same package
    String packageName = ((PsiClassOwner)importStatement.getContainingFile()).getPackageName();
    PsiJavaCodeReferenceElement reference = importStatement.getImportReference();
    PsiElement resolved = reference == null ? null : reference.resolve();
    if (resolved instanceof PsiPackage) {
      isRedundant = packageName.equals(((PsiPackage)resolved).getQualifiedName());
    }
    else if (resolved instanceof PsiClass && !importStatement.isOnDemand()) {
      String qName = ((PsiClass)resolved).getQualifiedName();
      if (qName != null) {
        String name = ((PsiClass)resolved).getName();
        isRedundant = qName.equals(packageName + '.' + name);
      }
    }
  }

  if (isRedundant) {
    return registerRedundantImport(importStatement, unusedImportKey);
  }

  int entryIndex = myStyleManager.findEntryIndex(importStatement);
  if (entryIndex < myCurrentEntryIndex) {
    myHasMissortedImports = true;
  }
  myCurrentEntryIndex = entryIndex;

  return null;
}