DataType TryGetGenericTypeFromMethodGroup(GenericParameterType gt, DelegateType dt, MethodGroup mg, GenericParameterType[] gparams, DataType[] gargs)
{
dt.AssignBaseType();
var pl = dt.Parameters;
foreach (var c in mg.Candidates)
{
var m = c;
if (m.IsGenericDefinition)
{
DataType[] typeArgs;
if (TryGetGenericTypeArgumentsFromParameterList(c.GenericParameters, c.Parameters,
dt.GenericArguments, out typeArgs))
{
for (int i = 0; i < typeArgs.Length; i++)
{
typeArgs[i] = TryParameterize(typeArgs[i], gparams, gargs);
if (typeArgs[i] == null)
{
goto CONTINUE;
}
}
m = TypeBuilder.Parameterize(mg.Source, c, typeArgs);
}
else
{
goto CONTINUE;
}
}
for (int j = 0; j < Math.Min(pl.Length, m.Parameters.Length); j++)
{
var at = TryGetGenericTypeArgumentRecursive(gt, pl[j].Type, m.Parameters[j].Type);
if (at != null)
{
return(at);
}
}
if (!m.ReturnType.IsVoid)
{
var at = TryGetGenericTypeArgumentRecursive(gt, dt.ReturnType, m.ReturnType);
if (at != null)
{
return(at);
}
}
CONTINUE:
;
}
return(null);
}