Fixed index over slices with struct pointers

ucl/objs.go

@@ -4,9 +4,10 @@ import (
 	"context"
 	"errors"
 	"fmt"
-	"github.com/lmika/gopkgs/fp/slices"
 	"reflect"
 	"strconv"
+
+	"github.com/lmika/gopkgs/fp/slices"
 )
 
 type object interface {
@@ -156,15 +157,20 @@ func fromGoValue(v any) (object, error) {
 		return intObject(t), nil
 	}
 
-	resVal := reflect.ValueOf(v)
+	return fromGoReflectValue(reflect.ValueOf(v))
+}
+
+func fromGoReflectValue(resVal reflect.Value) (object, error) {
 	switch resVal.Kind() {
 	case reflect.Slice:
 		return listableProxyObject{resVal}, nil
 	case reflect.Struct:
 		return newStructProxyObject(resVal), nil
+	case reflect.Pointer:
+		return fromGoReflectValue(resVal.Elem())
 	}
 
-	return proxyObject{v}, nil
+	return proxyObject{resVal.Interface()}, nil
 }
 
 type macroArgs struct {

ucl/testbuiltins_test.go

@@ -523,11 +523,15 @@ func TestBuiltins_Index(t *testing.T) {
 		{desc: "list of hash 1", expr: `index [["id":"abc"] ["id":"123"]] 0 id`, want: "abc\n"},
 		{desc: "list of hash 2", expr: `index [["id":"abc"] ["id":"123"]] 1 id`, want: "123\n"},
 
-		{desc: "go list 1", expr: `goInt | index 1`, want: "5\n"},
-		{desc: "go list 2", expr: `goInt | index 2`, want: "4\n"},
-		{desc: "go list 3", expr: `goInt | index 555`, want: "(nil)\n"},
-		{desc: "go list 4", expr: `goInt | index -12`, want: "(nil)\n"},
-		{desc: "go list 5", expr: `goInt | index NotAnIndex`, want: "(nil)\n"},
+		{desc: "go int 1", expr: `goInt | index 1`, want: "5\n"},
+		{desc: "go int 2", expr: `goInt | index 2`, want: "4\n"},
+		{desc: "go int 3", expr: `goInt | index 555`, want: "(nil)\n"},
+		{desc: "go int 4", expr: `goInt | index -12`, want: "(nil)\n"},
+		{desc: "go int 5", expr: `goInt | index NotAnIndex`, want: "(nil)\n"},
+
+		{desc: "go list 1", expr: `goList | index 0 This`, want: "thing 1\n"},
+		{desc: "go list 2", expr: `goList | index 1 This`, want: "thing 2\n"},
+
 		{desc: "go struct 1", expr: `goStruct | index Alpha`, want: "foo\n"},
 		{desc: "go struct 2", expr: `goStruct | index Beta`, want: "bar\n"},
 		{desc: "go struct 3", expr: `goStruct | index Gamma 1`, want: "33\n"},
@@ -551,6 +555,15 @@ func TestBuiltins_Index(t *testing.T) {
 			inst.SetBuiltin("goInt", func(ctx context.Context, args CallArgs) (any, error) {
 				return []int{6, 5, 4}, nil
 			})
+			inst.SetBuiltin("goList", func(ctx context.Context, args CallArgs) (any, error) {
+				type nest struct {
+					This string
+				}
+				return []*nest{
+					{This: "thing 1"},
+					{This: "thing 2"},
+				}, nil
+			})
 			inst.SetBuiltin("goStruct", func(ctx context.Context, args CallArgs) (any, error) {
 				type nested struct {
 					This string