Exemplo n.º 1
0
        public static LithpPrimitive Print(LithpList parameters, LithpOpChain state,
                                           LithpInterpreter interp)
        {
            LithpPrimitive result = ApplyAction((A, B, X, Y) =>
            {
                return(A.ToString() + " " + B.ToString());
            }, parameters, state, interp);

            Console.WriteLine(result.ToString());
            return(LithpAtom.Nil);
        }
Exemplo n.º 2
0
        public static LithpPrimitive Call(LithpList parameters, LithpOpChain state,
                                          LithpInterpreter interp)
        {
            LithpPrimitive def       = parameters[0];
            LithpList      defParams = (LithpList)Tail(LithpList.New(parameters), state, interp);

            switch (def.LithpType())
            {
            case LithpType.FN_NATIVE:
                return(((LithpFunctionDefinitionNative)def).Invoke(defParams, state, interp));

            case LithpType.FN:
                return(((LithpFunctionDefinition)def).Invoke(defParams, state, interp));

            case LithpType.ATOM:
            case LithpType.STRING:
                string strName = def.ToString();
                ILithpFunctionDefinition search;
                if ((object)state.Closure.TopMost != null && state.Closure.TopMost.IsDefined(strName))
                {
                    search = (ILithpFunctionDefinition)state.Closure.TopMost[strName];
                }
                else if (state.Closure.IsDefined(strName))
                {
                    search = (ILithpFunctionDefinition)state.Closure[strName];
                }
                else
                {
                    string arityStar = strName + "/*";
                    if ((object)state.Closure.TopMost != null && state.Closure.TopMost.IsDefined(arityStar))
                    {
                        search = (ILithpFunctionDefinition)state.Closure.TopMost[arityStar];
                    }
                    else if (state.Closure.IsDefined(arityStar))
                    {
                        search = (ILithpFunctionDefinition)state.Closure[arityStar];
                    }
                    else
                    {
                        throw new MissingMethodException();
                    }
                }
                return(search.Invoke(defParams, state, interp));

            default:
                throw new NotImplementedException();
            }
        }
Exemplo n.º 3
0
 protected override LithpPrimitive operatorPlus(LithpPrimitive other)
 {
     return(Value + other.ToString());
 }