refactor how repl works

internal/builtins/args.go

@@ -6,7 +6,7 @@ import (
 )
 
 // Args ...
-func Args(args ...object.Object) object.Object {
+func args(args ...object.Object) object.Object {
 	if err := typing.Check(
 		"args", args,
 		typing.ExactArgs(0),
@@ -14,8 +14,8 @@ func Args(args ...object.Object) object.Object {
 		return newError(err.Error())
 	}
 
-	elements := make([]object.Object, len(object.Arguments))
-	for i, arg := range object.Arguments {
+	elements := make([]object.Object, len(object.Args))
+	for i, arg := range object.Args {
 		elements[i] = &object.String{Value: arg}
 	}
 	return &object.Array{Elements: elements}

internal/builtins/builtins.go

@@ -22,7 +22,7 @@ var Builtins = map[string]*object.Builtin{
 	"int":       {Name: "int", Fn: Int},
 	"str":       {Name: "str", Fn: Str},
 	"type":      {Name: "type", Fn: TypeOf},
-	"args":      {Name: "args", Fn: Args},
+	"args":      {Name: "args", Fn: args},
 	"lower":     {Name: "lower", Fn: Lower},
 	"upper":     {Name: "upper", Fn: Upper},
 	"join":      {Name: "join", Fn: Join},