Question

我的代码具有两个函数，它们具有不同的返回类型和不同的参数化。一个取一个字符串并返回布尔值。另一个接受字符串数组并返回字典。当我们从c＃.Net控制台应用程序运行库时，它会识别过载并选择正确的返回类型。当我们将包含dll的模块导入Powershell并将函数传递给字符串时，我们将按预期获得布尔值返回类型。但是，当我们传递字符串数组时，我们仍然会得到布尔返回类型，就好像它没有检测到重载方法一样。但是，将函数传递给错误类型的参数不会导致任何错误，我们只会返回“ false”。

我们尝试类型转换我们要传递的数组，以及将返回类型转换为字典。我们还测试了具有相同返回类型的常规重载，并且效果很好。

// C＃代码

public static class StringTests
{
    /// <summary>
    /// Test a string for valid email format
    /// </summary>
    /// <param name="email">email string to test</param>
    /// <returns>true if valid email format</returns>

    public static bool ValidateEmailFormat(string email)
    {
        Dictionary<string, string> exp = StoredRegEx.StoredExpressions;

        // Fail if two periods in a row
        if (Regex.IsMatch(email, exp["DoublePeriod"]))
        {
            return false;
        }

        // Fail if leading character is a period
        if (Regex.IsMatch(email, exp["LeadPeriod"]))
        {
            return false;
        }

        // Splitting email string around '@' delimeter.  We can test the results to check for multiple @'s, or @'s in the wrong location
        string[] splitEmail = email.Split('@');

        // Fail if anything other than exactly one '@' symbol in string.  If there is one '@' symbol located in email string that is not either the first 
        // or last character, then we should always get a string array with a length of two when we split.
        if (splitEmail.Length != 2)
        {
            return false;
        }

        // Fail if local string does not match local format
        if (!Regex.IsMatch(splitEmail[0], exp["LocalFormat"]))
        {
            return false;
        }

        // Fail if domain string is longer than 255 chars
        if (splitEmail[1].Length > 255)
        {
            return false;
        }

        // Fail if domain string begins or ends with a hyphen               TODO: Research if its exclusively hyphen because like dollar signs and percetages probably don't work
        if (splitEmail[1].StartsWith("-") || splitEmail[1].EndsWith("-"))
        {
            return false;
        }

        // Turn the domain string into subdomains around a '.' delimeter to check if any of the subdomains 
        string[] subDomains = splitEmail[1].Split('.');

        foreach (string subDomain in subDomains)
        {
            if (subDomain.Length > 63)
            {
                return false;
            }
        }

        // Fail if domain does not match domain format
        if(!Regex.IsMatch(splitEmail[1], exp["DomainFormat"]))
        {
            return false;
        }

        return true;
    }

    /// <summary>                                                                                                                                   // currently the overloaded dictionary return type is not working with powershell
    /// Overload takes an array of email strings and return dictionary with bool validation
    /// </summary>
    /// <param name="emails"></param>
    /// <returns></returns>
    public static Dictionary<string, bool> ValidateEmailFormat(string[] emails)
    {
        Dictionary<string, bool> validatedEmails = new Dictionary<string, bool>();

        foreach(string email in emails)
        {
            bool emailValid = ValidateEmailFormat(email);

            validatedEmails.Add(email, emailValid);
        }

        return validatedEmails;
    }

// Powershell代码

Import-Module .\DotNetForPowershell.dll
$ArrayOfEmails = ("test@test.com", "@anotheremail.com", "em.ail@test.com" 
[DotNetForPowershell.Utils.StingTests]::ValidateEmailFormat($ArrayOfEmails)

预期：传递字符串数组将返回字典对象

实际：传递字符串数组将返回“ false”。

Answer 1

您是否尝试过将变量转换为字符串数组？

Import-Module .\DotNetForPowershell.dll
$ArrayOfEmails = ("test@test.com", "@anotheremail.com", "em.ail@test.com")
[DotNetForPowershell.Utils.StingTests]::ValidateEmailFormat([System.String[]]$ArrayOfEmails)

出于某种原因，PSObject可能被解释为字符串。

使用C＃库的Powershell无法识别具有不同返回类型的重载方法

1 个答案: