Fix bug introduced with #17 (#60)

* Fix bug introduced with #17

* Add testcase for mixed json slice

map_test.go

@@ -116,6 +116,37 @@ func TestConversionJSONInt(t *testing.T) {
 	assert.Equal(t, []interface{}{1}, m.Get("d").InterSlice()[0])
 }
 
+func TestJSONSliceInt(t *testing.T) {
+	jsonString :=
+		`{
+      "a": [
+        {"b": 1},
+        {"c": 2}
+      ]
+    }`
+	m, err := objx.FromJSON(jsonString)
+
+	assert.Nil(t, err)
+	require.NotNil(t, m)
+	assert.Equal(t, []objx.Map{objx.Map{"b": 1}, objx.Map{"c": 2}}, m.Get("a").ObjxMapSlice())
+}
+
+func TestJSONSliceMixed(t *testing.T) {
+	jsonString :=
+		`{
+      "a": [
+        {"b": 1},
+        "a"
+      ]
+    }`
+	m, err := objx.FromJSON(jsonString)
+
+	assert.Nil(t, err)
+	require.NotNil(t, m)
+
+	assert.Nil(t, m.Get("a").ObjxMapSlice())
+}
+
 func TestMapFromBase64String(t *testing.T) {
 	base64String := "eyJuYW1lIjoiTWF0In0="
 	o, err := objx.FromBase64(base64String)

type_specific_codegen.go

@@ -276,7 +276,10 @@ func (v *Value) MustObjxMap() Map {
 // ObjxMapSlice gets the value as a [](Map), returns the optionalDefault
 // value or nil if the value is not a [](Map).
 func (v *Value) ObjxMapSlice(optionalDefault ...[](Map)) [](Map) {
-	slice, ok := v.data.([]interface{})
+	if s, ok := v.data.([]Map); ok {
+		return s
+	}
+	s, ok := v.data.([]interface{})
 	if !ok {
 		if len(optionalDefault) == 1 {
 			return optionalDefault[0]
@@ -285,11 +288,15 @@ func (v *Value) ObjxMapSlice(optionalDefault ...[](Map)) [](Map) {
 		}
 	}
 
-	result := make([]Map, len(slice))
-	for i := range slice {
-		result[i] = New(slice[i])
+	result := make([]Map, len(s))
+	for i := range s {
+		switch s[i].(type) {
+		case Map:
+			result[i] = s[i].(Map)
+		default:
+			return nil
+		}
 	}
-
 	return result
 }