71 lines
1.7 KiB
C#
71 lines
1.7 KiB
C#
using System;
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using System.Linq;
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namespace Antmicro.OptionsParser
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{
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public static class ParseHelper
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{
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public static bool TryParse<T>(string str, out T value)
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{
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object result;
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if(TryParse(str, typeof(T), out result))
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{
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value = (T)result;
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return true;
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}
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value = default(T);
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return false;
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}
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public static bool TryParse(string str, Type type, out object value)
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{
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if(str == null)
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{
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value = null;
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return false;
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}
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if(type == typeof(string))
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{
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value = str;
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return true;
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}
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if(type.IsEnum)
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{
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try
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{
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value = Enum.Parse(type, str, true);
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return true;
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}
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catch(ArgumentException)
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{
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value = null;
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return false;
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}
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}
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if(!SupportedTypes.Contains(type))
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{
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value = null;
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return false;
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}
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var parameters = new object[] { str, null };
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var parseMethod = type.GetMethod("TryParse", new [] { typeof(string), type.MakeByRefType() });
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var result = (bool)parseMethod.Invoke(null, parameters);
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value = parameters[1];
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return result;
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}
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private static readonly Type[] SupportedTypes =
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{
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typeof(int),
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typeof(bool),
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typeof(float)
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};
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}
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}
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