public object visitSuperExpr(Expr.Super expr)
{
int distance = locals[expr];
LoxClass superClass = (LoxClass)env.getAt(
distance, "super");
LoxInstance instance = (LoxInstance)env.getAt(
distance - 1, "this");
LoxFunction method = superClass.findMethod(expr.Method.Lexeme);
if (method == null)
{
throw new RuntimeError(expr.Method,
$"Undefined propert '{expr.Method.Lexeme}'");
}
return(method.bind(instance));
}
public object call(Interpreter interpreter, List <object> args)
{
Envir envir = new Envir(Closure);
for (int i = 0; i < Declaration.Parameters.Count; i++)
{
envir.define(Declaration.Parameters[i].Lexeme, args[i]);
}
try {
interpreter.executeBlock(Declaration.Body, envir);
} catch (LoxReturn returnValue) {
if (IsInitializer)
{
return(Closure.getAt(0, "this"));
}
return(returnValue.Value);
}
if (IsInitializer)
{
return(Closure.getAt(0, "this"));
}
return(null);
}
