Support flex annotation in FlatBuffers schema.

Author: greenrobot-team

internal/generator/c/schema-reader.go

@@ -41,6 +41,7 @@ var supportedEntityAnnotations = map[string]bool{
 var supportedPropertyAnnotations = map[string]bool{
 	"date":         true,
 	"date-nano":    true,
+	"flex":         true,
 	"id":           true,
 	"id-companion": true,
 	"index":        true,

test/comparison/testdata/fbs/typeful/objectbox-model.json.expected

@@ -138,7 +138,7 @@
     },
     {
       "id": "2:2259404117704393152",
-      "lastPropertyId": "9:6972732843819909978",
+      "lastPropertyId": "10:7845762441295307478",
       "name": "AnnotatedEntity",
       "flags": 2,
       "properties": [
@@ -202,6 +202,11 @@
           "indexId": "8:5558237345453186302",
           "type": 5,
           "flags": 40
+        },
+        {
+          "id": "10:7845762441295307478",
+          "name": "flexValue",
+          "type": 13
         }
       ],
       "relations": [

test/comparison/testdata/fbs/typeful/schema.fbs

@@ -68,6 +68,10 @@ table Annotated {
 	/// unique on string without index type implies HASH index
 	/// objectbox:unique
 	uid:int;
+
+	/// mark byte vector as flexible type
+	/// objectbox:flex
+	flexValue:[byte];
 }
 
 /// objectbox: transient