private static ExpressionFormat create(@Nullable PsiPolyadicExpression expression, @Nullable PsiExpression myOperand) {
      if (expression == null) return EMPTY;

      StringBuilder beforeText = new StringBuilder();
      int operandIdx = constructExpressionText(beforeText, expression, 0, myOperand);
      StringBuilder afterText = new StringBuilder();
      constructExpressionText(afterText, expression, operandIdx + 1, null);

      return new ExpressionFormat(beforeText.toString(), afterText.toString());
    }
private static ExpressionFormat create(@Nullable PsiPolyadicExpression expression, @Nullable PsiExpression myOperand)