/// <summary>
/// Updates the function.
/// </summary>
/// <param name="func">The func.</param>
/// <param name="name">The name.</param>
/// <param name="arguments">The arguments.</param>
/// <returns></returns>
protected FunctionExpression UpdateFunction(FunctionExpression func, string name, IEnumerable <Expression> arguments)
{
if (name != func.Name || arguments != func.Arguments)
{
return(new FunctionExpression(func.Type, name, arguments));
}
return(func);
}
/// <summary>
/// Visits the function.
/// </summary>
/// <param name="function">The function.</param>
/// <returns></returns>
protected virtual Expression VisitFunction(FunctionExpression function)
{
this.Write("FUNCTION ");
this.Write(function.Name);
if (function.Arguments.Count > 0)
{
this.Write("(");
this.VisitExpressionList(function.Arguments);
this.Write(")");
}
return(function);
}
/// <summary>
/// Compares the function.
/// </summary>
/// <param name="x">The x.</param>
/// <param name="y">The y.</param>
/// <returns></returns>
protected virtual bool CompareFunction(FunctionExpression x, FunctionExpression y)
{
return(x.Name.Equals(y.Name, StringComparison.InvariantCultureIgnoreCase) && this.CompareExpressionList(x.Arguments, y.Arguments));
}
/// <summary>
/// Visits the function.
/// </summary>
/// <param name="func">The func.</param>
/// <returns></returns>
protected virtual Expression VisitFunction(FunctionExpression func)
{
var arguments = this.VisitExpressionList(func.Arguments);
return(this.UpdateFunction(func, func.Name, arguments));
}
