protected LoadableClassAttributeBase(string summary, Type instType, Type loaderType, Type argType, Type[] sigTypes, string userName, params string[] loadNames)
{
Contracts.CheckValueOrNull(summary);
Contracts.CheckValue(instType, nameof(instType));
Contracts.CheckValue(loaderType, nameof(loaderType));
Contracts.CheckNonEmpty(sigTypes, nameof(sigTypes));
if (Utils.Size(loadNames) == 0)
{
loadNames = new string[] { userName }
}
;
if (loadNames.Any(s => string.IsNullOrWhiteSpace(s)))
{
throw Contracts.ExceptEmpty(nameof(loadNames), "LoadableClass loadName parameter can't be empty");
}
var sigType = sigTypes[0];
Contracts.CheckValue(sigType, nameof(sigTypes));
Type[] types;
Contracts.CheckParam(sigType.BaseType == typeof(System.MulticastDelegate), nameof(sigTypes), "LoadableClass signature type must be a delegate type");
var meth = sigType.GetMethod("Invoke");
Contracts.CheckParam(meth != null, nameof(sigTypes), "LoadableClass signature type must be a delegate type");
Contracts.CheckParam(meth.ReturnType == typeof(void), nameof(sigTypes), "LoadableClass signature type must be a delegate type with void return");
var parms = meth.GetParameters();
int itypeBase = 0;
if (argType != null)
{
types = new Type[1 + parms.Length];
types[itypeBase++] = argType;
}
else if (parms.Length > 0)
{
types = new Type[parms.Length];
}
else
{
types = Type.EmptyTypes;
}
for (int itype = 0; itype < parms.Length; itype++)
{
var parm = parms[itype];
if ((parm.Attributes & (ParameterAttributes.Out | ParameterAttributes.Retval)) != 0)
{
throw Contracts.Except("Invalid signature parameter attributes");
}
types[itypeBase + itype] = parm.ParameterType;
}
for (int i = 1; i < sigTypes.Length; i++)
{
sigType = sigTypes[i];
Contracts.CheckValue(sigType, nameof(sigTypes));
Contracts.Check(sigType.BaseType == typeof(System.MulticastDelegate), "LoadableClass signature type must be a delegate type");
meth = sigType.GetMethod("Invoke");
Contracts.CheckParam(meth != null, nameof(sigTypes), "LoadableClass signature type must be a delegate type");
Contracts.CheckParam(meth.ReturnType == typeof(void), nameof(sigTypes), "LoadableClass signature type must be a delegate type with void return");
parms = meth.GetParameters();
Contracts.CheckParam(parms.Length + itypeBase == types.Length, nameof(sigTypes), "LoadableClass signatures must have the same number of parameters");
for (int itype = 0; itype < parms.Length; itype++)
{
var parm = parms[itype];
if ((parm.Attributes & (ParameterAttributes.Out | ParameterAttributes.Retval)) != 0)
{
throw Contracts.ExceptParam(nameof(sigTypes), "Invalid signature parameter attributes");
}
Contracts.CheckParam(types[itypeBase + itype] == parm.ParameterType, nameof(sigTypes),
"LoadableClass signatures must have the same set of parameters");
}
}
InstanceType = instType;
LoaderType = loaderType;
ArgType = argType;
SigTypes = sigTypes;
CtorTypes = types;
Summary = summary;
UserName = userName;
LoadNames = loadNames;
}
}