protected int getIndentInner(@NotNull PsiFile file, final @NotNull ASTNode element, boolean includeNonSpace, int recursionLevel) {
    if (recursionLevel > TOO_BIG_WALK_THRESHOLD) return 0;

    if (element.getTreePrev() != null) {
      ASTNode prev = element.getTreePrev();
      ASTNode lastCompositePrev;
      while (prev instanceof CompositeElement && !TreeUtil.isStrongWhitespaceHolder(prev.getElementType())) {
        lastCompositePrev = prev;
        prev = prev.getLastChildNode();
        if (prev == null) { // element.prev is "empty composite"
          return getIndentInner(file, lastCompositePrev, includeNonSpace, recursionLevel + 1);
        }
      }

      String text = prev.getText();
      int index = Math.max(text.lastIndexOf('\n'), text.lastIndexOf('\r'));

      if (index >= 0) {
        return getIndent(file, text.substring(index + 1), includeNonSpace);
      }

      if (includeNonSpace) {
        return getIndentInner(file, prev, true, recursionLevel + 1) + getIndent(file, text, true);
      }


      ASTNode parent = prev.getTreeParent();
      ASTNode child = prev;
      while (parent != null) {
        if (child.getTreePrev() != null) break;
        child = parent;
        parent = parent.getTreeParent();
      }

      if (parent == null) {
        return getIndent(file, text, false);
      }
      else {
        return getIndentInner(file, prev, false, recursionLevel + 1);
      }
    }
    else {
      if (element.getTreeParent() == null) {
        return 0;
      }
      return getIndentInner(file, element.getTreeParent(), includeNonSpace, recursionLevel + 1);
    }
  }
protected int getIndentInner(@NotNull PsiFile file, final @NotNull ASTNode element, boolean includeNonSpace, int recursionLevel)