Safely returns the set of loadable types from an assembly. - CSharp System.Reflection

CSharp examples for System.Reflection:Assembly

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Description

Safely returns the set of loadable types from an assembly.

Demo Code

// Permission is hereby granted, free of charge, to any person
using System.Reflection;
using System.Linq;
using System.Collections.Generic;
using System;/*w  ww  .  ja  va  2s  . c o  m*/

public class Main{
        /// <summary>
        /// Safely returns the set of loadable types from an assembly.
        /// </summary>
        /// <param name="assembly">The <see cref="System.Reflection.Assembly"/> from which to load types.</param>
        /// <returns>
        /// The set of types from the <paramref name="assembly" />, or the subset
        /// of types that could be loaded if there was any error.
        /// </returns>
        /// <exception cref="System.ArgumentNullException">
        /// Thrown if <paramref name="assembly" /> is <see langword="null" />.
        /// </exception>
        public static IEnumerable<Type> GetLoadableTypes(this Assembly assembly)
        {
            // Algorithm from StackOverflow answer here:
            // http://stackoverflow.com/questions/7889228/how-to-prevent-reflectiontypeloadexception-when-calling-assembly-gettypes

            if (assembly == null) throw new ArgumentNullException(nameof(assembly));

            try
            {
                return assembly.DefinedTypes.Select(t => t.AsType());
            }
            catch (ReflectionTypeLoadException ex)
            {
                return ex.Types.Where(t => t != null);
            }
        }
}

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