/// <summary>
/// Given generic class type and the passed constructor arguments
/// creates specific type and instance of the type. Attempts to match
/// supplied arguments to either __init__ signature or to the
/// list of generic definitions in Generic[T1, T2, ...].
/// </summary>
private IMember CreateClassInstance(PythonClassType cls, IReadOnlyList <IMember> constructorArguments, CallExpression callExpr)
{
// Look at the constructor arguments and create argument set
// based on the __init__ definition.
var initFunc = cls.GetMember(@"__init__") as IPythonFunctionType;
var initOverload = initFunc?.DeclaringType == cls?initFunc.Overloads.FirstOrDefault() : null;
var argSet = initOverload != null
? new ArgumentSet(initFunc, 0, null, callExpr, this)
: new ArgumentSet(constructorArguments, callExpr, this);
argSet.Evaluate();
var specificType = cls.CreateSpecificType(argSet);
return(new PythonInstance(specificType));
}
public IPythonType CreateSpecificType(IArgumentSet typeArguments)
{
EnsureContent();
return(_cls.CreateSpecificType(typeArguments));
}