示例#1
0
 @Nullable
 public static String getReferencePrefix(@NotNull PsiElement insertedElement, int offsetInFile) {
   final PsiReference ref = insertedElement.getContainingFile().findReferenceAt(offsetInFile);
   if (ref != null) {
     final PsiElement element = ref.getElement();
     final int endIndex = offsetInFile - element.getTextRange().getStartOffset();
     final int beginIndex = ref.getRangeInElement().getStartOffset();
     if (beginIndex > endIndex) {
       LOG.error(
           "Inconsistent reference (found at offset not included in its range): ref="
               + ref
               + " element="
               + element
               + " text="
               + element.getText());
     }
     if (beginIndex < 0) {
       LOG.error(
           "Inconsistent reference (begin < 0): ref="
               + ref
               + " element="
               + element
               + "; begin="
               + beginIndex
               + " text="
               + element.getText());
     }
     LOG.assertTrue(endIndex >= 0);
     return element.getText().substring(beginIndex, endIndex);
   }
   return null;
 }
  // need to shorten references in type argument list
  public static void shortenReference(final PsiFile file, final int offset)
      throws IncorrectOperationException {
    Project project = file.getProject();
    final PsiDocumentManager manager = PsiDocumentManager.getInstance(project);
    Document document = manager.getDocument(file);
    if (document == null) {
      PsiUtilCore.ensureValid(file);
      LOG.error("No document for " + file);
      return;
    }

    manager.commitDocument(document);
    final PsiReference ref = file.findReferenceAt(offset);
    if (ref != null) {
      PsiElement element = ref.getElement();
      if (element != null) {
        JavaCodeStyleManager.getInstance(project).shortenClassReferences(element);
        PsiDocumentManager.getInstance(project).doPostponedOperationsAndUnblockDocument(document);
      }
    }
  }