optimizations

internal/object/int.go

@@ -35,6 +35,8 @@ func (i Integer) Add(other Object) (Object, error) {
 	switch obj := other.(type) {
 	case Integer:
 		return Integer{i.Value + obj.Value}, nil
+	case Float:
+		return Float{float64(i.Value) + obj.Value}, nil
 	default:
 		return nil, NewBinaryOpError(i, other, "+")
 	}
@@ -44,6 +46,8 @@ func (i Integer) Sub(other Object) (Object, error) {
 	switch obj := other.(type) {
 	case Integer:
 		return Integer{i.Value - obj.Value}, nil
+	case Float:
+		return Float{float64(i.Value) - obj.Value}, nil
 	default:
 		return nil, NewBinaryOpError(i, other, "-")
 	}
@@ -53,6 +57,8 @@ func (i Integer) Mul(other Object) (Object, error) {
 	switch obj := other.(type) {
 	case Integer:
 		return Integer{i.Value * obj.Value}, nil
+	case Float:
+		return Float{float64(i.Value) * obj.Value}, nil
 	case String:
 		return obj.Mul(i)
 	case *Array:
@@ -69,6 +75,11 @@ func (i Integer) Div(other Object) (Object, error) {
 			return nil, NewDivisionByZeroError(i)
 		}
 		return Integer{i.Value / obj.Value}, nil
+	case Float:
+		if obj.Value == 0.0 {
+			return nil, NewDivisionByZeroError(i)
+		}
+		return Float{float64(i.Value) / obj.Value}, nil
 	default:
 		return nil, NewBinaryOpError(i, other, "/")
 	}
@@ -78,6 +89,8 @@ func (i Integer) Mod(other Object) (Object, error) {
 	switch obj := other.(type) {
 	case Integer:
 		return Integer{i.Value % obj.Value}, nil
+	case Float:
+		return Float{float64(i.Value % int64(obj.Value))}, nil
 	default:
 		return nil, NewBinaryOpError(i, other, "%")
 	}