我知道这是尝试使单个泛型和数组泛型过载的常见问题。所有这些答案都讨论了为什么以这种方式起作用,以及如何有更好的方法,但是没有一个能证明这一点。我正在寻找有关如何实现自己所追求的目标的建议,我愿意重构并以不同的方式进行操作
以下是代表问题的代码: https://dotnetfiddle.net/sWrNj3
using System;
using System.Collections;
using System.Collections.Generic;
using System.Data;
using System.Data.SqlClient;
using System.Diagnostics.CodeAnalysis;
using System.Linq;
using System.Reflection;
public static class MyParser
{
public static void Parse<T>(string name, T value)
{
Console.WriteLine($"{name}: single");
}
// Must take in IEnumerable<T>
public static void Parse<T>(string name, IEnumerable<T> collection)
{
Console.WriteLine($"{name}: IEnumerable");
}
public static void ParseObj<T>(T data)
{
foreach (var prop in data.GetType().GetProperties(BindingFlags.Instance | BindingFlags.Public))
{
Parse(prop.Name, prop.GetValue(data, null));
}
}
}
public class Program
{
public static void Main()
{
MyParser.ParseObj(new
{
Str = "abc",
Num = 543,
Arr = new[]{1, 2, 3},
Chars = new char[]{'x', 'y', 'z'}}
);
}
}
结果:
Str: single
Num: single
Arr: single
Chars: single
所需:
Str: single
Num: single
Arr: IEnumerable
Chars: IEnumerable
答案 0 :(得分:0)
我认为您在那里拥有所需的所有信息,但是您无法将所有工作委托给编译器,您必须自己完成工作:
http://www.example.com/test_program/files/homescript.js
输出:
using System;
using System.Collections;
using System.Collections.Generic;
using System.Data;
using System.Data.SqlClient;
using System.Diagnostics.CodeAnalysis;
using System.Linq;
using System.Reflection;
using static System.Console;
public static class MyParser
{
public static void ParseObj<T>(T data)
{
foreach (var prop in data.GetType().GetProperties(BindingFlags.Instance | BindingFlags.Public))
{
if(prop.PropertyType.IsArray) WriteLine($"{prop.Name}:array");
else if(prop.PropertyType == (typeof(string))) WriteLine($"{prop.Name}:string");
else if(prop.PropertyType.IsValueType) WriteLine($"{prop.Name}:value type");
else if(typeof(IEnumerable).IsAssignableFrom(prop.PropertyType)) WriteLine($"{prop.Name}:IEnumerable");
else if(prop.PropertyType.IsEnum) WriteLine($"{prop.Name}:enum");
else if(prop.PropertyType.IsClass) WriteLine($"{prop.Name}:class");
else WriteLine($"{prop.Name}:something else");
}
}
}
public class Program
{
public static void Main()
{
MyParser.ParseObj(new
{
Str = "abc"
, Num = 543
, Arr = new[]{1, 2, 3}
, Chars = new char[]{'x', 'y', 'z'}
, SomeList = new List<string>(){"a","b","c"}
});
}
}
*更新* 如果有人发现此问题有用,请在注释的答案中添加代码的演变: