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using Newtonsoft.Json;
using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Reflection;
using System.Text;
using System.Threading.Tasks;
using Tango.Core.Helpers;
namespace Tango.Scripting.Basic
{
public class ReferenceAssembly
{
public static String DotNetFrameworkFolder { get; set; } = AssemblyHelper.GetAssemblyTargetFrameworkFolder(Assembly.GetExecutingAssembly());
private static Dictionary<String, Assembly> _assembliesCache;
static ReferenceAssembly()
{
_assembliesCache = new Dictionary<string, Assembly>();
}
public String File { get; set; }
public Type HintType { get; set; }
[JsonIgnore]
public String Name
{
get { return Path.GetFileNameWithoutExtension(File); }
}
public static ReferenceAssembly FromType(Type type)
{
ReferenceAssembly reference = new ReferenceAssembly();
reference.HintType = type;
var assembly = type.Assembly;
reference.File = assembly.Location;
return reference;
}
public static ReferenceAssembly FromFile(String file)
{
return new ReferenceAssembly() { File = file };
}
public Assembly Load()
{
Assembly loaded = null;
if (!_assembliesCache.TryGetValue(Name, out loaded))
{
try
{
if (HintType != null)
{
loaded = HintType.Assembly;
}
else
{
loaded = Assembly.LoadFrom(File);
}
_assembliesCache.Add(Name, loaded);
}
catch
{
try
{
String dotNetPath = DotNetFrameworkFolder;
String dotNetAsm = Path.Combine(dotNetPath, Name + ".dll");
loaded = Assembly.LoadFrom(dotNetAsm);
_assembliesCache.Add(Name, loaded);
}
catch (Exception ex)
{
throw new FileNotFoundException($"Could not load assembly '{Name}'. File not found.", ex);
}
}
}
return loaded;
}
public override string ToString()
{
return Name;
}
}
}
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