void (@Nullable XSourcePosition sourcePosition) { if (mySourcePosition != sourcePosition) { mySourcePosition = sourcePosition; XExpression expression = getExpression(); // for empty expression we reset the language from the source position if (XDebuggerUtilImpl.isEmptyExpression(expression) && expression.getLanguage() != null) { expression = XExpressionImpl.changeLanguage(expression, null); } setExpression(expression); } }