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Code Issues Releases Wiki Activity

Added GetStaticFieldValue method

pull/83/head
David Hall 2019-07-19 17:32:05 -06:00
parent f47dc668bc
commit 5b4853db7e
1 changed files with 14 additions and 1 deletions
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15
Core/Extensions/ReflectionExtensions.cs
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@ -10,6 +10,7 @@ namespace Vanara.Extensions
public static class ReflectionExtensions
{
private const BindingFlags bindingFlags = BindingFlags.Instance | BindingFlags.Public | BindingFlags.NonPublic | BindingFlags.IgnoreCase;
private const BindingFlags staticBindingFlags = BindingFlags.Static | BindingFlags.Public | BindingFlags.NonPublic | BindingFlags.IgnoreCase;
/// <summary>For a structure, gets either the result of the static Create method or the default.</summary>
/// <typeparam name="T">The structure's type.</typeparam>
@ -78,9 +79,21 @@ namespace Vanara.Extensions
public static T GetFieldValue<T>(this object obj, string fieldName)
{
if (obj is null) throw new ArgumentNullException(nameof(obj));
if (string.IsNullOrEmpty(fieldName)) throw new ArgumentNullException(nameof(fieldName));
return (T)obj.GetType().InvokeMember(fieldName, BindingFlags.GetField | bindingFlags, null, obj, null, null);
}
/// <summary>Gets a named field value from an object.</summary>
/// <typeparam name="T">The expected type of the field to be returned.</typeparam>
/// <param name="obj">The object from which to retrieve the field.</param>
/// <param name="fieldName">Name of the field.</param>
/// <returns>The field value.</returns>
public static T GetStaticFieldValue<T>(string fieldName)
{
if (string.IsNullOrEmpty(fieldName)) throw new ArgumentNullException(nameof(fieldName));
return (T)typeof(T).InvokeMember(fieldName, BindingFlags.GetField | staticBindingFlags, null, null, null);
}
/// <summary>Gets a named field value from an object.</summary>
/// <typeparam name="T">The expected type of the field to be returned.</typeparam>
/// <param name="obj">The object from which to retrieve the field.</param>
@ -223,7 +236,7 @@ namespace Vanara.Extensions
public static T InvokeStaticMethod<T>(this Type type, string methodName, params object[] args)
{
var argTypes = args == null || args.Length == 0 ? Type.EmptyTypes : Array.ConvertAll(args, o => o?.GetType() ?? typeof(object));
var mi = type.GetMethod(methodName, BindingFlags.Public | BindingFlags.NonPublic | BindingFlags.IgnoreCase | BindingFlags.Static, null, argTypes, null);
var mi = type.GetMethod(methodName, staticBindingFlags, null, argTypes, null);
if (mi == null) throw new ArgumentException(@"Method not found", nameof(methodName));
return (T)mi.Invoke(null, args);
}