private ConstructorInfo ComputeCtor()
{
int numArgs = _args.count();
List <ConstructorInfo> cinfos
= new List <ConstructorInfo>(_type.GetConstructors()
.Where(x => x.GetParameters().Length == numArgs && x.IsPublic));
if (cinfos.Count == 0)
{
throw new InvalidOperationException(string.Format("No constructor in type: {0} with {1} arguments", _type.Name, numArgs));
}
int index = 0;
if (cinfos.Count > 1)
{
List <ParameterInfo[]> parms = new List <ParameterInfo[]>(cinfos.Count);
List <Type> rets = new List <Type>(cinfos.Count);
foreach (ConstructorInfo cinfo in cinfos)
{
parms.Add(cinfo.GetParameters());
rets.Add(_type);
}
index = HostExpr.GetMatchingParams(".ctor", parms, _args, rets);
}
ConstructorInfo ctor = index >= 0 ? cinfos[index] : null;
if (ctor == null && RT.booleanCast(RT.WARN_ON_REFLECTION.deref()))
{
((TextWriter)RT.ERR.deref()).WriteLine("Reflection warning, line: {0} - call to {1} ctor can't be resolved.",
/* line */ 0, _type.FullName);
}
return(ctor);
}
