private static Tuple <MethodInfo, RedirectCallsState> RedirectMethod(Type targetType, MethodInfo detour, bool reverse)
{
String originalMethodName = detourRegex.Replace(detour.Name, "");
try {
BindingFlags bindingFlags = BindingFlags.NonPublic | BindingFlags.Public | BindingFlags.Static | BindingFlags.Instance;
var parameters = detour.GetParameters();
Type[] types;
if (parameters.Length > 0 && (
(!targetType.IsValueType && parameters[0].ParameterType.Equals(targetType)) ||
(targetType.IsValueType && parameters[0].ParameterType.Equals(targetType.MakeByRefType()))))
{
types = parameters.Skip(1).Select(p => p.ParameterType).ToArray();
}
else
{
types = parameters.Select(p => p.ParameterType).ToArray();
}
var originalMethod = targetType.GetMethod(originalMethodName, bindingFlags, null, types, null);
Log._Debug($"before redirect: originalMethod: {originalMethod.MethodHandle.GetFunctionPointer()} detour: {detour.MethodHandle.GetFunctionPointer()}");
var redirectCallsState =
reverse ? RedirectionHelper.RedirectCalls(detour, originalMethod) : RedirectionHelper.RedirectCalls(originalMethod, detour);
Log._Debug($"after redirect: originalMethod: {originalMethod.MethodHandle.GetFunctionPointer()} detour: {detour.MethodHandle.GetFunctionPointer()}");
return(Tuple.New(reverse ? detour : originalMethod, redirectCallsState));
} catch (Exception e) {
Log.Error($"An error occurred while trying to {(reverse ? "reverse-" : "")}detour original method {targetType.FullName}.{originalMethodName} {(reverse ? "from" : "to")} {detour.ReflectedType.FullName}.{detour.Name}: {e.ToString()}");
Log.Info(e.StackTrace);
throw e;
}
}
