protected virtual void AddAdapterMethod(SupertypingAdapter adapter,
MethodInfo method,
MethodInfo adapteeMethod)
{
ParameterInfo[] parameters =
typeManager.GetParameters(method);
Type[] paramTypes = new Type[parameters.Length];
for (int i = 0; i < parameters.Length; i++) {
paramTypes[i] = parameters[i].ParameterType;
}
MethodBuilder mb =
adapter.TypeBuilder.
DefineMethod(method.DeclaringType.FullName + "." +
method.Name,
MethodAttributes.Private |
MethodAttributes.Virtual |
MethodAttributes.HideBySig,
method.ReturnType,
paramTypes);
SupertypingAdapterMethod adapterMethod =
new SupertypingAdapterMethod(mb, adapteeMethod,
parameters.Length);
adapter.Methods.Add(adapterMethod);
adapter.TypeBuilder.DefineMethodOverride(mb, method);
}
protected virtual void GenerateAdapter(SupertypingAdapter adapter)
{
ilGenerator = adapter.Constructor.GetILGenerator();
ilGenerator.Emit(OpCodes.Ldarg_0);
ilGenerator.Emit(OpCodes.Ldarg_1);
ilGenerator.Emit(OpCodes.Stfld, adapter.AdapteeField);
ilGenerator.Emit(OpCodes.Ret);
foreach (SupertypingAdapterMethod method in adapter.Methods) {
ilGenerator = method.MethodBuilder.GetILGenerator();
ilGenerator.Emit(OpCodes.Ldarg_0);
ilGenerator.Emit(OpCodes.Ldfld, adapter.AdapteeField);
for (int i = 1; i <= method.ParameterCount; i++) {
ilGenerator.Emit(OpCodes.Ldarg, i);
}
ilGenerator.Emit(OpCodes.Tailcall);
if (adapter.AdapteeType.IsAbstract)
ilGenerator.EmitCall(OpCodes.Callvirt,
method.AdapteeMethod,
null);
else
ilGenerator.EmitCall(OpCodes.Call,
method.AdapteeMethod,
null);
ilGenerator.Emit(OpCodes.Ret);
}
adapter.TypeBuilder.CreateType();
}