com.intellij.psi.SmartPsiElementPointer#getElement ( )源码实例Demo

@Nullable
@Override
protected Navigatable[] getNavigatables(DataContext dataContext) {
  SmartPsiElementPointer<PsiElement> element = myElement;
  if (element != null) {
    PsiElement psiElement = element.getElement();
    return psiElement instanceof Navigatable ? new Navigatable[]{(Navigatable)psiElement} : null;
  }
  return null;
}
 

@Nullable
public PsiElement getPsiElement(@Nonnull FoldRegion region) {
  final SmartPsiElementPointer<?> pointer = myFoldRegionToSmartPointerMap.get(region);
  if (pointer == null) {
    return null;
  }
  PsiElement element = pointer.getElement();
  return element != null && element.isValid() ? element : null;
}
 

@Override
public PsiElement fun(final SmartPsiElementPointer<PsiElement> pointer) {
  return pointer.getElement();
}
 

@Nullable
public static PsiElement getFileContext(@Nonnull PsiFile file) {
  SmartPsiElementPointer pointer = file.getUserData(INJECTED_IN_ELEMENT);
  return pointer == null ? null : pointer.getElement();
}