Merge 57e0f78803 into 431b7fbd9f

src/Discord.Net.Commands/CommandService.cs

@@ -83,7 +83,7 @@ namespace Discord.Commands
                 _moduleLock.Release();
             }
         }
-        public async Task<ModuleInfo> AddModuleAsync<T>()
+        public async Task<ModuleInfo> AddModuleAsync<T>() where T : IModuleBase<ICommandContext>
         {
             await _moduleLock.WaitAsync().ConfigureAwait(false);
             try
@@ -96,7 +96,7 @@ namespace Discord.Commands
                 var module = ModuleClassBuilder.Build(this, typeInfo).FirstOrDefault();
 
                 if (module.Value == default(ModuleInfo))
-                    throw new InvalidOperationException($"Could not build the module {typeof(T).FullName}, did you pass an invalid type?");
+                    throw new InvalidOperationException($"Could not build the module {typeof(T).FullName}");
 
                 _typedModuleDefs[module.Key] = module.Value;
 
@@ -153,7 +153,7 @@ namespace Discord.Commands
                 _moduleLock.Release();
             }
         }
-        public async Task<bool> RemoveModuleAsync<T>()
+        public async Task<bool> RemoveModuleAsync<T>() where T : IModuleBase<ICommandContext>
         {
             await _moduleLock.WaitAsync().ConfigureAwait(false);
             try

src/Discord.Net.Commands/IModuleBase.cs

@@ -1,5 +1,10 @@
-namespace Discord.Commands
+namespace Discord.Commands
 {
+    public interface IModuleBase<out T>
+        where T : ICommandContext
+    {
+    }
+
     internal interface IModuleBase
     {
         void SetContext(ICommandContext context);

src/Discord.Net.Commands/ModuleBase.cs

@@ -5,7 +5,7 @@ namespace Discord.Commands
 {
     public abstract class ModuleBase : ModuleBase<ICommandContext> { }
 
-    public abstract class ModuleBase<T> : IModuleBase
+    public abstract class ModuleBase<T> : IModuleBase, IModuleBase<T>
         where T : class, ICommandContext
     {
         public T Context { get; private set; }