Wrap recursively arrays for json.array() (#18)

Author: Roman Atachiants

fixtures/array.lua

@@ -9,6 +9,7 @@ function main()
         ["str"] = json.array("hello"),
         ["int"] = json.array(12),
         ["bool"] = json.array(true),
-        ["float"] = json.array(12.34)
+        ["float"] = json.array(12.34),
+        ["empties"] = json.array(json.array())
     }
 end

json/json.go

@@ -84,6 +84,12 @@ func apiArray(state *lua.LState) int {
 			}
 		}
 
+		// Wrap user data in an array
+		if custom, ok := state.CheckAny(1).(*lua.LUserData); ok {
+			state.Push(&lua.LUserData{Value: []any{custom.Value}})
+			return 1
+		}
+
 		// Otherwise, return an array
 		fallthrough
 	default:

script_test.go

@@ -307,7 +307,7 @@ func TestEmptyArray(t *testing.T) {
 		"str": ["hello"],
 		"int": [12],
 		"bool": [true],
-		"float": [12.34]
+		"float": [12.34],
+		"empties": [[]]
 	}`, string(b))
-
 }