[TS] Add Obj API (#5788)

* added basic code * backup work * got class property to work * backup progress * implementented fmt for creating code * added docs for genFieldUtils * back up work * added base helper js func * added union js code * added unpackTo and base for pack * added pack code * added null check for packing struct list * passes compile test * fixed some spacing of generated functions * added annotations for constructors * added obj api unpack test * tested pack to work * merge branch * separated js and ts test * fixed union signature to include string * fixed generator to support string union * hardcoded fb builder name * refactored struct vector creation * work around createLong * handle default value in constructor * update typescript docs * added notes about import flag * fixed formatting stuffs * undo TypescriptTest change * refactored fmt * updated generated code * remove ignoring union_vector for js * revert changes for .project * revert changes for package.json * don't generate js in ts test * fixed android project file * removed unused js function * removed package-lock.json * adjust createObjList to new signature * changed regex to callback style * fixed package.json * used existing func for generating annotation * changed ternary to !! * added return type for lambda * removed callback style for obj api generator * fixed js file indentation * removed unused header * added tests for string only union * handle string only union and refactor union conv func * updated generated ts files * renamed union conv func * made js test create files like other languages * removed union string only handling * don't allow null in createObjectOffsetList * updated generated ts code * changed the line that triggers Windows build errors * hopefully fix CI error
2026-06-01 19:58:15 +00:00 · 2020-04-09 09:53:16 -07:00
parent 21cf300f4c
commit 003e164057
12 changed files with 2159 additions and 57 deletions
--- a/.gitignore
+++ b/.gitignore
@@ -72,6 +72,7 @@ tests/monsterdata_rust_wire.mon
 tests/unicode_test.mon
 tests/ts/
 tests/php/
+tests/js/
 CMakeLists.txt.user
 CMakeScripts/**
 CTestTestfile.cmake
--- a/docs/source/TypeScriptUsage.md
+++ b/docs/source/TypeScriptUsage.md
@@ -60,6 +60,38 @@ Now you can access values like this:
  let pos = monster.pos();
 ~~~

+## Object based API
+
+FlatBuffers is all about memory efficiency, which is why its base API is written
+around using as little as possible of it. This does make the API clumsier
+(requiring pre-order construction of all data, and making mutation harder).
+
+For times when efficiency is less important a more convenient object based API
+can be used (through `--gen-object-api`) that is able to unpack & pack a
+FlatBuffer into objects and standard TS types.
+
+**When using the obj based API, the flatbuffers import need to be in the global namespace if you don't have `--no-fb-import` enabled** since creating default values require accessing the `flatbuffers.js` file.
+
+To use:
+
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~{.ts}
+    // Autogenerated class from table Monster.
+    let monsterobj = new MonsterT();
+
+    // Deserialize from buffer into object.
+    Monster.getRootAsMonster(flatbuffer).unpackTo(monsterobj);
+    // or
+    let monsterobj = Monster.getRootAsMonster(flatbuffer).unpack();
+
+    // Update object directly like a regular TS class instance.
+    console.log(monsterobj.name);
+    monsterobj.name = "Bob";
+
+    // Serialize into new flatbuffer.
+    let fbb = new flatbuffers.Builder(1);
+    Monster.finishMonsterBuffer(fbb, monsterobj.pack(fbb));
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
 ## Text parsing FlatBuffers in TypeScript

 There currently is no support for parsing text (Schema's and JSON) directly
--- a/js/flatbuffers.js
+++ b/js/flatbuffers.js
@@ -54,6 +54,15 @@ flatbuffers.FILE_IDENTIFIER_LENGTH = 4;
 */
 flatbuffers.SIZE_PREFIX_LENGTH = 4;

+/**
+ * @param {number} low
+ * @param {number} high
+ * @returns {flatbuffers.Long}
+ */
+flatbuffers.createLong = function(low, high) {
+  return flatbuffers.Long.create(low, high);
+};
+
 /**
 * @enum {number}
 */
@@ -830,6 +839,52 @@ flatbuffers.Builder.prototype.createString = function(s) {
 flatbuffers.Builder.prototype.createLong = function(low, high) {
  return flatbuffers.Long.create(low, high);
 };
+
+/**
+ * A helper function to pack an object
+ * 
+ * @returns offset of obj
+ */
+flatbuffers.Builder.prototype.createObjectOffset = function(obj) {
+  if(obj === null) {
+    return 0
+  }
+
+  if(typeof obj === 'string') {
+    return this.createString(obj);
+  } else {
+    return obj.pack(this);
+  }
+}
+
+/**
+ * A helper function to pack a list of object
+ * 
+ * @returns list of offsets of each non null object
+ */
+flatbuffers.Builder.prototype.createObjectOffsetList = function(list) {
+  let ret = [];
+
+  for(let i = 0; i < list.length; ++i) {
+    let val = list[i];
+
+    if(val !== null) {
+      ret.push(this.createObjectOffset(val));
+    } else {
+      throw new Error(
+        'FlatBuffers: Argument for createObjectOffsetList cannot contain null.'); 
+    }
+  }
+  
+  return ret;
+};
+
+flatbuffers.Builder.prototype.createStructOffsetList = function(list, startFunc) {
+  startFunc(this, list.length);
+  this.createObjectOffsetList(list);
+  return this.endVector();
+}
+
 ////////////////////////////////////////////////////////////////////////////////
 /// @cond FLATBUFFERS_INTERNAL
 /**
@@ -1195,6 +1250,24 @@ flatbuffers.ByteBuffer.prototype.__string = function(offset, opt_encoding) {
  return result;
 };

+/**
+ * Handle unions that can contain string as its member, if a Table-derived type then initialize it, 
+ * if a string then return a new one
+ * 
+ * WARNING: strings are immutable in JS so we can't change the string that the user gave us, this 
+ * makes the behaviour of __union_with_string different compared to __union
+ *
+ * @param {flatbuffers.Table|string} o
+ * @param {number} offset
+ * @returns {flatbuffers.Table|string}
+ */
+flatbuffers.ByteBuffer.prototype.__union_with_string = function(o, offset) {
+  if(typeof o === 'string') {
+    return this.__string(offset);
+  } 
+  return this.__union(o, offset);
+};
+
 /**
 * Retrieve the relative offset stored at "offset"
 * @param {number} offset
@@ -1252,6 +1325,48 @@ flatbuffers.ByteBuffer.prototype.createLong = function(low, high) {
  return flatbuffers.Long.create(low, high);
 };

+/**
+ * A helper function for generating list for obj api
+ * @param listAccessor function that accepts an index and return data at that index
+ * @param {number} listLength
+ * @returns {any[]}
+ */
+flatbuffers.ByteBuffer.prototype.createScalarList = function(listAccessor, listLength) {
+  let ret = [];
+  for(let i = 0; i < listLength; ++i) {
+    if(listAccessor(i) !== null) {
+      ret.push(listAccessor(i));
+    }
+  }
+
+  return ret;
+};
+
+/**
+ * This function is here only to get around typescript type system
+ */
+flatbuffers.ByteBuffer.prototype.createStringList = function(listAccessor, listLength) {
+  return this.createScalarList(listAccessor, listLength);
+};
+
+/**
+ * A helper function for generating list for obj api
+ * @param listAccessor function that accepts an index and return data at that index
+ * @param listLength {number} listLength
+ * @param res any[] result list
+ */
+flatbuffers.ByteBuffer.prototype.createObjList = function(listAccessor, listLength) {
+  let ret = [];
+  for(let i = 0; i < listLength; ++i) {
+    let val = listAccessor(i);
+    if(val !== null) {
+      ret.push(val.unpack());
+    }
+  }
+  
+  return ret;
+};
+
 // Exports for Node.js and RequireJS
 this.flatbuffers = flatbuffers;

--- a/src/idl_gen_js_ts.cpp
+++ b/src/idl_gen_js_ts.cpp
@@ -374,9 +374,16 @@ class JsTsGenerator : public BaseGenerator {
            std::make_pair(ev.union_type.struct_def->file, std::move(desc)));
      }
    }
+    code += "};";

-    if (lang_.language == IDLOptions::kTs && !ns.empty()) { code += "}"; }
-    code += "};\n\n";
+    if (lang_.language == IDLOptions::kTs) {
+      if (enum_def.is_union) {
+        code += GenUnionConvFunc(enum_def.underlying_type);
+      }
+      if (!ns.empty()) { code += "\n}"; }
+    }
+
+    code += "\n\n";
  }

  static std::string GenType(const Type &type) {
@@ -404,7 +411,12 @@ class JsTsGenerator : public BaseGenerator {
    switch (type.base_type) {
      case BASE_TYPE_STRING: return GenBBAccess() + ".__string" + arguments;
      case BASE_TYPE_STRUCT: return GenBBAccess() + ".__struct" + arguments;
-      case BASE_TYPE_UNION: return GenBBAccess() + ".__union" + arguments;
+      case BASE_TYPE_UNION:
+        if (!UnionHasStringType(*type.enum_def) ||
+            lang_.language == IDLOptions::kJs) {
+          return GenBBAccess() + ".__union" + arguments;
+        }
+        return GenBBAccess() + ".__union_with_string" + arguments;
      case BASE_TYPE_VECTOR: return GenGetter(type.VectorType(), arguments);
      default: {
        auto getter =
@@ -426,7 +438,8 @@ class JsTsGenerator : public BaseGenerator {
  }

  std::string GenDefaultValue(const Value &value, const std::string &context) {
-    if (value.type.enum_def) {
+    if (value.type.enum_def && value.type.base_type != BASE_TYPE_UNION &&
+        value.type.base_type != BASE_TYPE_VECTOR) {
      if (auto val = value.type.enum_def->FindByValue(value.constant)) {
        if (lang_.language == IDLOptions::kTs) {
          return GenPrefixedTypeName(WrapInNameSpace(*value.type.enum_def),
@@ -446,7 +459,13 @@ class JsTsGenerator : public BaseGenerator {
    switch (value.type.base_type) {
      case BASE_TYPE_BOOL: return value.constant == "0" ? "false" : "true";

-      case BASE_TYPE_STRING: return "null";
+      case BASE_TYPE_STRING:
+      case BASE_TYPE_UNION:
+      case BASE_TYPE_STRUCT: {
+        return "null";
+      }
+
+      case BASE_TYPE_VECTOR: return "[]";

      case BASE_TYPE_LONG:
      case BASE_TYPE_ULONG: {
@@ -549,6 +568,10 @@ class JsTsGenerator : public BaseGenerator {
    return GenFileNamespacePrefix(file) + "." + typeName;
  }

+  std::string GenFullNameSpace(const Definition &def, const std::string &file) {
+    return GenPrefixedTypeName(GetNameSpace(def), file);
+  }
+
  void GenStructArgs(const StructDef &struct_def, std::string *annotations,
                     std::string *arguments, const std::string &nameprefix) {
    for (auto it = struct_def.fields.vec.begin();
@@ -668,6 +691,527 @@ class JsTsGenerator : public BaseGenerator {
    }
  }

+  static std::string GetObjApiClassName(const StructDef &sd,
+                                        const IDLOptions &opts) {
+    return GetObjApiClassName(sd.name, opts);
+  }
+
+  static std::string GetObjApiClassName(const std::string &name,
+                                        const IDLOptions &opts) {
+    return opts.object_prefix + name + opts.object_suffix;
+  }
+
+  bool UnionHasStringType(const EnumDef &union_enum) {
+    return std::any_of(union_enum.Vals().begin(), union_enum.Vals().end(),
+                       [](const EnumVal *ev) {
+                         return !(ev->IsZero()) &&
+                                (ev->union_type.base_type == BASE_TYPE_STRING);
+                       });
+  }
+
+  std::string GenUnionGenericTypeTS(const EnumDef &union_enum) {
+    return std::string("T") + (UnionHasStringType(union_enum) ? "|string" : "");
+  }
+
+  std::string GenUnionTypeTS(const EnumDef &union_enum) {
+    std::string ret;
+    std::set<std::string> type_list;
+
+    for (auto it = union_enum.Vals().begin(); it != union_enum.Vals().end();
+         ++it) {
+      const auto &ev = **it;
+      if (ev.IsZero()) { continue; }
+
+      std::string type = "";
+      if (ev.union_type.base_type == BASE_TYPE_STRING) {
+        type = "string";  // no need to wrap string type in namespace
+      } else if (ev.union_type.base_type == BASE_TYPE_STRUCT) {
+        type = GenPrefixedTypeName(WrapInNameSpace(*(ev.union_type.struct_def)),
+                                   union_enum.file);
+      } else {
+        FLATBUFFERS_ASSERT(false);
+      }
+      type_list.insert(type);
+    }
+
+    for (auto it = type_list.begin(); it != type_list.end(); ++it) {
+      ret += *it + ((std::next(it) == type_list.end()) ? "" : "|");
+    }
+
+    return ret;
+  }
+
+  // Generate a TS union type based on a union's enum
+  std::string GenObjApiUnionTypeTS(const IDLOptions &opts,
+                                   const EnumDef &union_enum) {
+    std::string ret = "";
+    std::set<std::string> type_list;
+
+    for (auto it = union_enum.Vals().begin(); it != union_enum.Vals().end();
+         ++it) {
+      const auto &ev = **it;
+      if (ev.IsZero()) { continue; }
+
+      std::string type = "";
+      if (ev.union_type.base_type == BASE_TYPE_STRING) {
+        type = "string";  // no need to wrap string type in namespace
+      } else if (ev.union_type.base_type == BASE_TYPE_STRUCT) {
+        type = GenPrefixedTypeName(
+            GetObjApiClassName(WrapInNameSpace(*(ev.union_type.struct_def)),
+                               opts),
+            union_enum.file);
+      } else {
+        FLATBUFFERS_ASSERT(false);
+      }
+      type_list.insert(type);
+    }
+
+    size_t totalPrinted = 0;
+    for (auto it = type_list.begin(); it != type_list.end(); ++it) {
+      ++totalPrinted;
+      ret += *it + ((totalPrinted == type_list.size()) ? "" : "|");
+    }
+
+    return ret;
+  }
+
+  std::string GenUnionConvFuncName(const EnumDef &enum_def) {
+    return "unionTo" + enum_def.name;
+  }
+
+  std::string GenUnionListConvFuncName(const EnumDef &enum_def) {
+    return "unionListTo" + enum_def.name;
+  }
+
+  std::string GenUnionConvFunc(const Type &union_type) {
+    if (union_type.enum_def) {
+      const auto &enum_def = *union_type.enum_def;
+
+      const auto valid_union_type = GenUnionTypeTS(enum_def);
+      const auto valid_union_type_with_null = valid_union_type + "|null";
+
+      auto ret = "\n\nexport function " + GenUnionConvFuncName(enum_def) +
+                 "(\n  type: " + enum_def.name +
+                 ",\n  accessor: (obj:" + valid_union_type + ") => " +
+                 valid_union_type_with_null +
+                 "\n): " + valid_union_type_with_null + " {\n";
+
+      const auto enum_type = GenPrefixedTypeName(
+          WrapInNameSpace(*(union_type.enum_def)), union_type.enum_def->file);
+      const auto &union_enum = *(union_type.enum_def);
+
+      const auto union_enum_loop = [&](const std::string &accessor_str) {
+        ret += "  switch(" + enum_type + "[type]) {\n";
+        ret += "    case 'NONE': return null; \n";
+
+        for (auto it = union_enum.Vals().begin(); it != union_enum.Vals().end();
+             ++it) {
+          const auto &ev = **it;
+          if (ev.IsZero()) { continue; }
+
+          ret += "    case '" + ev.name + "': ";
+
+          if (ev.union_type.base_type == BASE_TYPE_STRING) {
+            ret += "return " + accessor_str + "'') as string;";
+          } else if (ev.union_type.base_type == BASE_TYPE_STRUCT) {
+            const auto type = GenPrefixedTypeName(
+                WrapInNameSpace(*(ev.union_type.struct_def)), union_enum.file);
+            ret += "return " + accessor_str + "new " + type + "())! as " +
+                   type + ";";
+          } else {
+            FLATBUFFERS_ASSERT(false);
+          }
+          ret += "\n";
+        }
+
+        ret += "    default: return null;\n";
+        ret += "  }\n";
+      };
+
+      union_enum_loop("accessor(");
+      ret += "}";
+
+      ret += "\n\nexport function " + GenUnionListConvFuncName(enum_def) +
+             "(\n  type: " + enum_def.name +
+             ", \n  accessor: (index: number, obj:" + valid_union_type +
+             ") => " + valid_union_type_with_null +
+             ", \n  index: number\n): " + valid_union_type_with_null + " {\n";
+      union_enum_loop("accessor(index, ");
+      ret += "}";
+
+      return ret;
+    }
+    FLATBUFFERS_ASSERT(0);
+    return "";
+  }
+
+  // Used for generating a short function that returns the correct class
+  // based on union enum type. Assume the context is inside the non object api
+  // type
+  std::string GenUnionValTS(const std::string &field_name,
+                            const Type &union_type,
+                            const bool is_array = false) {
+    if (union_type.enum_def) {
+      const auto &enum_def = *union_type.enum_def;
+      const auto enum_type =
+          GenPrefixedTypeName(WrapInNameSpace(enum_def), enum_def.file);
+      const std::string union_accessor = "this." + field_name;
+
+      const auto union_has_string = UnionHasStringType(enum_def);
+      const auto field_binded_method = "this." + field_name + ".bind(this)";
+
+      std::string ret = "";
+
+      if (!is_array) {
+        const auto conversion_function =
+            GenPrefixedTypeName(WrapInNameSpace(enum_def.defined_namespace,
+                                                GenUnionConvFuncName(enum_def)),
+                                enum_def.file);
+        const auto target_enum = "this." + field_name + "Type()";
+
+        ret = "(() => {\n";
+        ret += "      let temp = " + conversion_function + "(" + target_enum +
+               ", " + field_binded_method + ");\n";
+        ret += "      if(temp === null) { return null; }\n";
+        ret += union_has_string
+                   ? "      if(typeof temp === 'string') { return temp; }\n"
+                   : "";
+        ret += "      return temp.unpack()\n";
+        ret += "  })()";
+      } else {
+        const auto conversion_function = GenPrefixedTypeName(
+            WrapInNameSpace(enum_def.defined_namespace,
+                            GenUnionListConvFuncName(enum_def)),
+            enum_def.file);
+        const auto target_enum_accesor = "this." + field_name + "Type";
+        const auto target_enum_length = target_enum_accesor + "Length()";
+
+        ret = "(() => {\n";
+        ret += "    let ret = [];\n";
+        ret += "    for(let targetEnumIndex = 0; targetEnumIndex < " +
+               target_enum_length +
+               "; "
+               "++targetEnumIndex) {\n";
+        ret += "      let targetEnum = " + target_enum_accesor +
+               "(targetEnumIndex);\n";
+        ret += "      if(targetEnum === null || " + enum_type +
+               "[targetEnum!] === 'NONE') { "
+               "continue; }\n\n";
+        ret += "      let temp = " + conversion_function + "(targetEnum, " +
+               field_binded_method + ", targetEnumIndex);\n";
+        ret += "      if(temp === null) { continue; }\n";
+        ret += union_has_string ? "      if(typeof temp === 'string') { "
+                                  "ret.push(temp); continue; }\n"
+                                : "";
+        ret += "      ret.push(temp.unpack());\n";
+        ret += "    }\n";
+        ret += "    return ret;\n";
+        ret += "  })()";
+      }
+
+      return ret;
+    }
+
+    FLATBUFFERS_ASSERT(0);
+    return "";
+  }
+
+  std::string GenNullCheckConditional(const std::string &nullCheckVar,
+                                      const std::string &trueVal,
+                                      const std::string &falseVal = "null") {
+    return "(" + nullCheckVar + " !== null ? " + trueVal + " : " + falseVal +
+           ")";
+  }
+
+  std::string GenStructMemberValueTS(const StructDef &struct_def,
+                                     const std::string &prefix,
+                                     const std::string &delimiter,
+                                     const bool nullCheck = true) {
+    std::string ret;
+    for (auto it = struct_def.fields.vec.begin();
+         it != struct_def.fields.vec.end(); ++it) {
+      auto &field = **it;
+
+      const auto curr_member_accessor =
+          prefix + "." + MakeCamel(field.name, false);
+      if (IsStruct(field.value.type)) {
+        ret += GenStructMemberValueTS(*field.value.type.struct_def,
+                                      curr_member_accessor, delimiter);
+      } else {
+        if (nullCheck) {
+          ret +=
+              "(" + prefix + " === null ? 0 : " + curr_member_accessor + "!)";
+        } else {
+          ret += curr_member_accessor;
+        }
+      }
+
+      if (std::next(it) != struct_def.fields.vec.end()) { ret += delimiter; }
+    }
+
+    return ret;
+  }
+
+  void GenObjApi(const Parser &parser, StructDef &struct_def,
+                 std::string &obj_api_unpack_func, std::string &obj_api_class) {
+    const auto class_name = GetObjApiClassName(struct_def, parser.opts);
+
+    std::string unpack_func =
+        "\n/**\n * " + GenTypeAnnotation(kReturns, class_name, "") +
+        " */\nunpack(): " + class_name + " {\n  return new " + class_name +
+        "(" + (struct_def.fields.vec.empty() ? "" : "\n");
+    std::string unpack_to_func =
+        "/**\n * " + GenTypeAnnotation(kParam, class_name, "_o") +
+        " */\nunpackTo(_o: " + class_name + "): void {" +
+        +(struct_def.fields.vec.empty() ? "" : "\n");
+
+    std::string constructor_annotation = "/**\n * @constructor";
+    constructor_annotation += (struct_def.fields.vec.empty() ? "" : "\n");
+    std::string constructor_func = "constructor(";
+    constructor_func += (struct_def.fields.vec.empty() ? "" : "\n");
+
+    std::string pack_func_prototype =
+        "/**\n * " +
+        GenTypeAnnotation(kParam, "flatbuffers.Builder", "builder") + " * " +
+        GenTypeAnnotation(kReturns, "flatbuffers.Offset", "") +
+        " */\npack(builder:flatbuffers.Builder): flatbuffers.Offset {\n";
+    std::string pack_func_offset_decl;
+    std::string pack_func_create_call =
+        "  return " + Verbose(struct_def) + ".create" + Verbose(struct_def) +
+        "(builder" + (struct_def.fields.vec.empty() ? "" : ",\n    ");
+    if (struct_def.fixed) {
+      // when packing struct, nested struct's members instead of the struct's
+      // offset are used
+      pack_func_create_call +=
+          GenStructMemberValueTS(struct_def, "this", ",\n    ", false) + "\n  ";
+    }
+
+    for (auto it = struct_def.fields.vec.begin();
+         it != struct_def.fields.vec.end(); ++it) {
+      auto &field = **it;
+      if (field.deprecated) continue;
+
+      const auto field_name = MakeCamel(field.name, false);
+      const std::string field_binded_method =
+          "this." + field_name + ".bind(this)";
+
+      std::string field_val;
+      std::string field_type;
+      // a string that declares a variable containing the
+      // offset for things that can't be generated inline
+      // empty otw
+      std::string field_offset_decl;
+      // a string that contains values for things that can be created inline or
+      // the variable name from field_offset_decl
+      std::string field_offset_val;
+      const auto field_default_val =
+          GenDefaultValue(field.value, "flatbuffers");
+
+      // Emit a scalar field
+      if (IsScalar(field.value.type.base_type) ||
+          field.value.type.base_type == BASE_TYPE_STRING) {
+        if (field.value.type.enum_def) {
+          field_type +=
+              GenPrefixedTypeName(GenTypeName(field.value.type, false, true),
+                                  field.value.type.enum_def->file);
+        } else {
+          field_type += GenTypeName(field.value.type, false, true);
+        }
+        field_val = "this." + field_name + "()";
+
+        if (field.value.type.base_type != BASE_TYPE_STRING) {
+          field_offset_val = "this." + field_name;
+        } else {
+          field_offset_decl = GenNullCheckConditional(
+              "this." + field_name,
+              "builder.createString(this." + field_name + "!)", "0");
+        }
+      }
+
+      // Emit an object field
+      else {
+        auto is_vector = false;
+        switch (field.value.type.base_type) {
+          case BASE_TYPE_STRUCT: {
+            const auto &sd = *field.value.type.struct_def;
+            field_type += GenPrefixedTypeName(
+                WrapInNameSpace(sd.defined_namespace,
+                                GetObjApiClassName(sd, parser.opts)),
+                field.value.type.struct_def->file);
+
+            const std::string field_accessor = "this." + field_name + "()";
+            field_val = GenNullCheckConditional(field_accessor,
+                                                field_accessor + "!.unpack()");
+            field_offset_val = GenNullCheckConditional(
+                "this." + field_name, "this." + field_name + "!.pack(builder)",
+                "0");
+
+            break;
+          }
+
+          case BASE_TYPE_VECTOR: {
+            auto vectortype = field.value.type.VectorType();
+            auto vectortypename = GenTypeName(vectortype, false);
+            is_vector = true;
+
+            field_type = "(";
+
+            switch (vectortype.base_type) {
+              case BASE_TYPE_STRUCT: {
+                const auto &sd = *field.value.type.struct_def;
+                field_type += GenPrefixedTypeName(
+                    WrapInNameSpace(sd.defined_namespace,
+                                    GetObjApiClassName(sd, parser.opts)),
+                    field.value.type.struct_def->file);
+                field_type += ")[]";
+
+                field_val = GenBBAccess() + ".createObjList(" +
+                            field_binded_method + ", this." + field_name +
+                            "Length())";
+
+                if (sd.fixed) {
+                  field_offset_decl = "builder.createStructOffsetList(this." +
+                                      field_name + ", " + Verbose(struct_def) +
+                                      ".start" + MakeCamel(field_name) +
+                                      "Vector)";
+                } else {
+                  field_offset_decl =
+                      Verbose(struct_def) + ".create" + MakeCamel(field_name) +
+                      "Vector(builder, builder.createObjectOffsetList(" +
+                      "this." + field_name + "))";
+                }
+
+                break;
+              }
+
+              case BASE_TYPE_STRING: {
+                field_type += "string)[]";
+                field_val = GenBBAccess() + ".createStringList(" +
+                            field_binded_method + ", this." + field_name +
+                            "Length())";
+                field_offset_decl =
+                    Verbose(struct_def) + ".create" + MakeCamel(field_name) +
+                    "Vector(builder, builder.createObjectOffsetList(" +
+                    "this." + field_name + "))";
+                break;
+              }
+
+              case BASE_TYPE_UNION: {
+                field_type +=
+                    GenObjApiUnionTypeTS(parser.opts, *(vectortype.enum_def));
+                field_type += ")[]";
+                field_val = GenUnionValTS(field_name, vectortype, true);
+
+                field_offset_decl =
+                    Verbose(struct_def) + ".create" + MakeCamel(field_name) +
+                    "Vector(builder, builder.createObjectOffsetList(" +
+                    "this." + field_name + "))";
+
+                break;
+              }
+              default: {
+                if (vectortype.enum_def) {
+                  field_type +=
+                      GenPrefixedTypeName(GenTypeName(vectortype, false, true),
+                                          vectortype.enum_def->file);
+                } else {
+                  field_type += vectortypename;
+                }
+                field_type += ")[]";
+                field_val = GenBBAccess() + ".createScalarList(" +
+                            field_binded_method + ", this." + field_name +
+                            "Length())";
+
+                field_offset_decl = Verbose(struct_def) + ".create" +
+                                    MakeCamel(field_name) +
+                                    "Vector(builder, this." + field_name + ")";
+
+                break;
+              }
+            }
+
+            break;
+          }
+
+          case BASE_TYPE_UNION: {
+            field_type +=
+                GenObjApiUnionTypeTS(parser.opts, *(field.value.type.enum_def));
+
+            field_val = GenUnionValTS(field_name, field.value.type);
+            field_offset_decl =
+                "builder.createObjectOffset(this." + field_name + ")";
+            break;
+          }
+
+          default: FLATBUFFERS_ASSERT(0); break;
+        }
+
+        // length 0 vector is simply empty instead of null
+        field_type += is_vector ? "" : "|null";
+      }
+
+      if (!field_offset_decl.empty()) {
+        field_offset_decl =
+            "  const " + field_name + " = " + field_offset_decl + ";";
+      }
+      if (field_offset_val.empty()) { field_offset_val = field_name; }
+
+      unpack_func += "    " + field_val;
+      unpack_to_func += "  _o." + field_name + " = " + field_val + ";";
+
+      constructor_annotation +=
+          " * " + GenTypeAnnotation(kParam, field_type, field_name, false);
+      constructor_func += "  public " + field_name + ": " + field_type + " = " +
+                          field_default_val;
+
+      if (!struct_def.fixed) {
+        if (!field_offset_decl.empty()) {
+          pack_func_offset_decl += field_offset_decl + "\n";
+        }
+        pack_func_create_call += field_offset_val;
+      }
+
+      if (std::next(it) != struct_def.fields.vec.end()) {
+        constructor_annotation += "\n";
+        constructor_func += ",\n";
+
+        if (!struct_def.fixed) { pack_func_create_call += ",\n    "; }
+
+        unpack_func += ",\n";
+        unpack_to_func += "\n";
+      } else {
+        constructor_func += "\n";
+        if (!struct_def.fixed) {
+          pack_func_offset_decl += (pack_func_offset_decl.empty() ? "" : "\n");
+          pack_func_create_call += "\n  ";
+        }
+
+        unpack_func += "\n  ";
+        unpack_to_func += "\n";
+      }
+    }
+
+    constructor_annotation += "\n */\n";
+    constructor_func += "){};\n\n";
+
+    pack_func_create_call += ");";
+
+    obj_api_class = "\nexport class " +
+                    GetObjApiClassName(struct_def, parser.opts) + " {\n";
+
+    obj_api_class += constructor_annotation + constructor_func;
+
+    obj_api_class += pack_func_prototype + pack_func_offset_decl +
+                     pack_func_create_call + "\n};";
+
+    obj_api_class += "\n}\n";
+
+    unpack_func += ");\n};";
+    unpack_to_func += "};\n";
+
+    obj_api_unpack_func = unpack_func + "\n\n" + unpack_to_func;
+  }
+
  // Generate an accessor struct with constructor for a flatbuffers struct.
  void GenStruct(const Parser &parser, StructDef &struct_def,
                 std::string *code_ptr, std::string *exports_ptr,
@@ -924,8 +1468,11 @@ class JsTsGenerator : public BaseGenerator {
              if (is_union) { prefix += "<T extends flatbuffers.Table>"; }
              prefix += "(index: number";
              if (is_union) {
-                vectortypename = "T";
-                code += prefix + ", obj:T";
+                const auto union_type =
+                    GenUnionGenericTypeTS(*(field.value.type.enum_def));
+
+                vectortypename = union_type;
+                code += prefix + ", obj:" + union_type;
              } else if (vectortype.base_type == BASE_TYPE_STRUCT) {
                vectortypename = GenPrefixedTypeName(
                    vectortypename, vectortype.struct_def->file);
@@ -1002,7 +1549,13 @@ class JsTsGenerator : public BaseGenerator {
                                      false));
            if (lang_.language == IDLOptions::kTs) {
              code += MakeCamel(field.name, false);
-              code += "<T extends flatbuffers.Table>(obj:T):T|null {\n";
+
+              const auto &union_enum = *(field.value.type.enum_def);
+              const auto union_type = GenUnionGenericTypeTS(union_enum);
+              code += "<T extends flatbuffers.Table>(obj:" + union_type +
+                      "):" + union_type +
+                      "|null "
+                      "{\n";
            } else {
              code +=
                  object_name + ".prototype." + MakeCamel(field.name, false);
@@ -1359,8 +1912,16 @@ class JsTsGenerator : public BaseGenerator {
    }

    if (lang_.language == IDLOptions::kTs) {
+      if (parser_.opts.generate_object_based_api) {
+        std::string obj_api_class;
+        std::string obj_api_unpack_func;
+        GenObjApi(parser_, struct_def, obj_api_unpack_func, obj_api_class);
+
+        code += obj_api_unpack_func + "}\n" + obj_api_class;
+      } else {
+        code += "}\n";
+      }
      if (!object_namespace.empty()) { code += "}\n"; }
-      code += "}\n";
    }
  }

@@ -1381,7 +1942,7 @@ class JsTsGenerator : public BaseGenerator {
  std::string Verbose(const StructDef &struct_def, const char *prefix = "") {
    return parser_.opts.js_ts_short_names ? "" : prefix + struct_def.name;
  }
-};
+};  // namespace jsts
 }  // namespace jsts

 bool GenerateJSTS(const Parser &parser, const std::string &path,
--- a/tests/JavaScriptTest.js
+++ b/tests/JavaScriptTest.js
@@ -3,8 +3,12 @@ var assert = require('assert');
 var fs = require('fs');

 var flatbuffers = require('../js/flatbuffers').flatbuffers;
+global.flatbuffers = flatbuffers;
+
 var MyGame = require(process.argv[2]).MyGame;

+var isTsTest = !!process.env.FB_TS_TEST; 
+
 function main() {

  // First, let's test reading a FlatBuffer generated by C++ code:
@@ -24,6 +28,10 @@ function main() {
  createMonster(fbb);
  serializeAndTest(fbb);

+  if(isTsTest) {
+    testObjApiPack(fbb);
+  }
+  
  // clear the builder, repeat tests
  var clearIterations = 100;
  var startingCapacity = fbb.bb.capacity();
@@ -31,6 +39,10 @@ function main() {
    fbb.clear();
    createMonster(fbb);
    serializeAndTest(fbb);
+
+    if(isTsTest) {
+      testObjApiPack(fbb);
+    }
  }
  // the capacity of our buffer shouldn't increase with the same size payload
  assert.strictEqual(fbb.bb.capacity(), startingCapacity);
@@ -109,6 +121,56 @@ function testMutation(bb) {
  // TODO: There is not the availability to mutate structs or vectors.
 }

+function testObjApiPack(fbb) {
+  fbb.clear();
+  createMonster(fbb);
+  let monster_t = MyGame.Example.Monster.getRootAsMonster(fbb.dataBuffer()).unpack();
+  fbb.clear();
+  MyGame.Example.Monster.finishMonsterBuffer(fbb, monster_t.pack(fbb));
+  serializeAndTest(fbb);
+}
+
+function testObjApiUnpack(monster) {
+  assert.strictEqual(monster.hp, 80);
+  assert.strictEqual(monster.mana, 150); // default
+
+  assert.strictEqual(monster.name, 'MyMonster');
+
+  let pos = monster.pos;
+  assert.strictEqual(pos.x, 1);
+  assert.strictEqual(pos.y, 2);
+  assert.strictEqual(pos.z, 3);
+  assert.strictEqual(pos.test1, 3);
+  assert.strictEqual(pos.test2, MyGame.Example.Color.Green);
+  let test3 = pos.test3;
+  assert.strictEqual(test3.a, 5);
+  assert.strictEqual(test3.b, 6);
+
+  assert.strictEqual(monster.testType, MyGame.Example.Any.Monster);
+  let monster2 = monster.test;
+  assert.strictEqual(monster2 != null, true);
+  assert.strictEqual(monster2 instanceof MyGame.Example.MonsterT, true);
+  assert.strictEqual(monster2.name, 'Fred');
+
+  assert.strictEqual(monster.inventory.length, 5);
+  let invsum = 0;
+  for (let i = 0; i < monster.inventory.length; i++) {
+    invsum += monster.inventory[i];
+  }
+  assert.strictEqual(invsum, 10);
+
+  let test_0 = monster.test4[0];
+  let test_1 = monster.test4[1];
+  assert.strictEqual(monster.test4.length, 2);
+  assert.strictEqual(test_0.a + test_0.b + test_1.a + test_1.b, 100);
+
+  assert.strictEqual(monster.testarrayofstring.length, 2);
+  assert.strictEqual(monster.testarrayofstring[0], 'test1');
+  assert.strictEqual(monster.testarrayofstring[1], 'test2');
+
+  assert.strictEqual(monster.testbool, true);
+}
+
 function testBuffer(bb) {
  assert.ok(MyGame.Example.Monster.bufferHasIdentifier(bb));

@@ -158,6 +220,15 @@ function testBuffer(bb) {
  assert.strictEqual(monster.testarrayofstring(1), 'test2');

  assert.strictEqual(monster.testbool(), true);
+
+  if(isTsTest) {
+    let monster_t = monster.unpack();
+    testObjApiUnpack(monster_t);
+
+    let monster2_t = new MyGame.Example.MonsterT();
+    monster.unpackTo(monster2_t);
+    testObjApiUnpack(monster2_t);
+  }
 }

 function test64bit() {
--- a/tests/JavaScriptTest.sh
+++ b/tests/JavaScriptTest.sh
@@ -16,4 +16,8 @@

 pushd "$(dirname $0)" >/dev/null
 ../flatc -b -I include_test monster_test.fbs unicode_test.json
-node JavaScriptTest ./monster_test_generated
+../flatc --js -o js --gen-mutable --no-fb-import -I include_test monster_test.fbs
+node JavaScriptTest ./js/monster_test_generated
+
+../flatc --js -o js --no-fb-import union_vector/union_vector.fbs
+node JavaScriptUnionVectorTest ./js/union_vector_generated
--- a/tests/JavaScriptUnionVectorTest.js
+++ b/tests/JavaScriptUnionVectorTest.js
@@ -3,38 +3,16 @@ var assert = require('assert');
 var flatbuffers = require('../js/flatbuffers').flatbuffers;
 var Test = require(process.argv[2]);

-function main() {
-  var fbb = new flatbuffers.Builder();
+var isTsTest = !!process.env.FB_TS_TEST; 

-  var charTypes = [
-    Test.Character.Belle,
-    Test.Character.MuLan,
-    Test.Character.BookFan,
-  ];
-
-  Test.Attacker.startAttacker(fbb);
-  Test.Attacker.addSwordAttackDamage(fbb, 5);
-  var attackerOffset = Test.Attacker.endAttacker(fbb);
-
-  var charTypesOffset = Test.Movie.createCharactersTypeVector(fbb, charTypes);
-  var charsOffset = Test.Movie.createCharactersVector(
-    fbb,
-    [
-      Test.BookReader.createBookReader(fbb, 7),
-      attackerOffset,
-      Test.BookReader.createBookReader(fbb, 2),
-    ]
-  );
-
-  Test.Movie.startMovie(fbb);
-  Test.Movie.addCharactersType(fbb, charTypesOffset);
-  Test.Movie.addCharacters(fbb, charsOffset);
-  Test.Movie.finishMovieBuffer(fbb, Test.Movie.endMovie(fbb));
-
-  var buf = new flatbuffers.ByteBuffer(fbb.asUint8Array());
-
-  var movie = Test.Movie.getRootAsMovie(buf);
+var charTypes = [
+  Test.Character.Belle,
+  Test.Character.MuLan,
+  Test.Character.BookFan,
+];
+if(isTsTest) { charTypes.push(Test.Character.Other); }

+function testMovieBuf(movie) {
  assert.strictEqual(movie.charactersTypeLength(), charTypes.length);
  assert.strictEqual(movie.charactersLength(), movie.charactersTypeLength());

@@ -51,6 +29,98 @@ function main() {
  var bookReader2 = movie.characters(2, new Test.BookReader());
  assert.strictEqual(bookReader2.booksRead(), 2);

+  if(isTsTest) {
+    var other = movie.characters(3, '');
+    assert.strictEqual(other, "I am other");
+  }
+}
+
+function testMovieUnpack(movie) {
+  assert.strictEqual(movie.charactersType.length, charTypes.length);
+  assert.strictEqual(movie.characters.length, movie.charactersType.length);
+
+  for (var i = 0; i < charTypes.length; ++i) {
+    assert.strictEqual(movie.charactersType[i], charTypes[i]);
+  }
+
+  var bookReader7 = movie.characters[0];
+  assert.strictEqual(bookReader7 instanceof Test.BookReaderT, true);
+  assert.strictEqual(bookReader7.booksRead, 7);
+  
+  var attacker = movie.characters[1];
+  assert.strictEqual(attacker instanceof Test.AttackerT, true);
+  assert.strictEqual(attacker.swordAttackDamage, 5);
+  
+  var bookReader2 = movie.characters[2];
+  assert.strictEqual(bookReader2 instanceof Test.BookReaderT, true);
+  assert.strictEqual(bookReader2.booksRead, 2);
+
+  if(isTsTest) {
+    var other = movie.characters[3];
+    assert.strictEqual(other, "I am other");
+  }
+}
+
+function createMovie(fbb) {
+  Test.Attacker.startAttacker(fbb);
+  Test.Attacker.addSwordAttackDamage(fbb, 5);
+  var attackerOffset = Test.Attacker.endAttacker(fbb);
+
+  var charTypesOffset = Test.Movie.createCharactersTypeVector(fbb, charTypes);
+  var charsOffset = 0;
+
+  if(isTsTest) {
+    let otherOffset = fbb.createString("I am other");
+
+    charsOffset = Test.Movie.createCharactersVector(
+      fbb,
+      [
+        Test.BookReader.createBookReader(fbb, 7),
+        attackerOffset,
+        Test.BookReader.createBookReader(fbb, 2),
+        otherOffset
+      ]
+    );
+  } else {
+    charsOffset = Test.Movie.createCharactersVector(
+      fbb,
+      [
+        Test.BookReader.createBookReader(fbb, 7),
+        attackerOffset,
+        Test.BookReader.createBookReader(fbb, 2)
+      ]
+    );
+  }
+
+  Test.Movie.startMovie(fbb);
+  Test.Movie.addCharactersType(fbb, charTypesOffset);
+  Test.Movie.addCharacters(fbb, charsOffset);
+  Test.Movie.finishMovieBuffer(fbb, Test.Movie.endMovie(fbb))
+}
+
+function main() {
+  var fbb = new flatbuffers.Builder();
+
+  createMovie(fbb);
+
+  var buf = new flatbuffers.ByteBuffer(fbb.asUint8Array());
+
+  var movie = Test.Movie.getRootAsMovie(buf);
+  testMovieBuf(movie);
+
+  if(isTsTest) {
+    testMovieUnpack(movie.unpack());
+
+    var movie_to = new Test.MovieT();
+    movie.unpackTo(movie_to);
+    testMovieUnpack(movie_to);
+
+    fbb.clear();
+    Test.Movie.finishMovieBuffer(fbb, movie_to.pack(fbb));
+    var unpackBuf = new flatbuffers.ByteBuffer(fbb.asUint8Array());
+    testMovieBuf(Test.Movie.getRootAsMovie(unpackBuf));
+  }
+
  console.log('FlatBuffers union vector test: completed successfully');
 }

--- a/tests/TypeScriptTest.sh
+++ b/tests/TypeScriptTest.sh
@@ -18,16 +18,17 @@ pushd "$(dirname $0)" >/dev/null

 npm install @types/flatbuffers

-../flatc --ts --no-fb-import --gen-mutable -o ts -I include_test monster_test.fbs
-../flatc -b -I include_test monster_test.fbs unicode_test.json
+export FB_TS_TEST="TRUE"
+
+../flatc --ts --no-fb-import --gen-mutable --gen-object-api -o ts -I include_test monster_test.fbs
+../flatc --gen-object-api -b -I include_test monster_test.fbs unicode_test.json
 tsc --strict --noUnusedParameters --noUnusedLocals --noImplicitReturns --strictNullChecks ts/monster_test_generated.ts
 node JavaScriptTest ./ts/monster_test_generated

-../flatc --ts --js --no-fb-import -o ts union_vector/union_vector.fbs
-
-# test JS version first, then transpile and rerun for TS
-node JavaScriptUnionVectorTest ./ts/union_vector_generated
+../flatc --ts --no-fb-import --gen-object-api -o ts union_vector/union_vector.fbs
 tsc --strict --noUnusedParameters --noUnusedLocals --noImplicitReturns --strictNullChecks ts/union_vector_generated.ts
 node JavaScriptUnionVectorTest ./ts/union_vector_generated

+unset FB_TS_TEST
+
 npm uninstall @types/flatbuffers
--- a/tests/monster_test_generated.ts
+++ b/tests/monster_test_generated.ts
@@ -19,7 +19,8 @@ export enum Color{
   * \brief color Blue (1u << 3)
   */
  Blue= 8
-}};
+};
+}

 /**
 * @enum {number}
@@ -30,7 +31,8 @@ export enum Race{
  Human= 0,
  Dwarf= 1,
  Elf= 2
-}};
+};
+}

 /**
 * @enum {number}
@@ -41,7 +43,35 @@ export enum Any{
  Monster= 1,
  TestSimpleTableWithEnum= 2,
  MyGame_Example2_Monster= 3
-}};
+};
+
+export function unionToAny(
+  type: Any,
+  accessor: (obj:MyGame.Example.Monster|MyGame.Example.TestSimpleTableWithEnum|MyGame.Example2.Monster) => MyGame.Example.Monster|MyGame.Example.TestSimpleTableWithEnum|MyGame.Example2.Monster|null
+): MyGame.Example.Monster|MyGame.Example.TestSimpleTableWithEnum|MyGame.Example2.Monster|null {
+  switch(MyGame.Example.Any[type]) {
+    case 'NONE': return null; 
+    case 'Monster': return accessor(new MyGame.Example.Monster())! as MyGame.Example.Monster;
+    case 'TestSimpleTableWithEnum': return accessor(new MyGame.Example.TestSimpleTableWithEnum())! as MyGame.Example.TestSimpleTableWithEnum;
+    case 'MyGame_Example2_Monster': return accessor(new MyGame.Example2.Monster())! as MyGame.Example2.Monster;
+    default: return null;
+  }
+}
+
+export function unionListToAny(
+  type: Any, 
+  accessor: (index: number, obj:MyGame.Example.Monster|MyGame.Example.TestSimpleTableWithEnum|MyGame.Example2.Monster) => MyGame.Example.Monster|MyGame.Example.TestSimpleTableWithEnum|MyGame.Example2.Monster|null, 
+  index: number
+): MyGame.Example.Monster|MyGame.Example.TestSimpleTableWithEnum|MyGame.Example2.Monster|null {
+  switch(MyGame.Example.Any[type]) {
+    case 'NONE': return null; 
+    case 'Monster': return accessor(index, new MyGame.Example.Monster())! as MyGame.Example.Monster;
+    case 'TestSimpleTableWithEnum': return accessor(index, new MyGame.Example.TestSimpleTableWithEnum())! as MyGame.Example.TestSimpleTableWithEnum;
+    case 'MyGame_Example2_Monster': return accessor(index, new MyGame.Example2.Monster())! as MyGame.Example2.Monster;
+    default: return null;
+  }
+}
+}

 /**
 * @enum {number}
@@ -52,7 +82,35 @@ export enum AnyUniqueAliases{
  M= 1,
  TS= 2,
  M2= 3
-}};
+};
+
+export function unionToAnyUniqueAliases(
+  type: AnyUniqueAliases,
+  accessor: (obj:MyGame.Example.Monster|MyGame.Example.TestSimpleTableWithEnum|MyGame.Example2.Monster) => MyGame.Example.Monster|MyGame.Example.TestSimpleTableWithEnum|MyGame.Example2.Monster|null
+): MyGame.Example.Monster|MyGame.Example.TestSimpleTableWithEnum|MyGame.Example2.Monster|null {
+  switch(MyGame.Example.AnyUniqueAliases[type]) {
+    case 'NONE': return null; 
+    case 'M': return accessor(new MyGame.Example.Monster())! as MyGame.Example.Monster;
+    case 'TS': return accessor(new MyGame.Example.TestSimpleTableWithEnum())! as MyGame.Example.TestSimpleTableWithEnum;
+    case 'M2': return accessor(new MyGame.Example2.Monster())! as MyGame.Example2.Monster;
+    default: return null;
+  }
+}
+
+export function unionListToAnyUniqueAliases(
+  type: AnyUniqueAliases, 
+  accessor: (index: number, obj:MyGame.Example.Monster|MyGame.Example.TestSimpleTableWithEnum|MyGame.Example2.Monster) => MyGame.Example.Monster|MyGame.Example.TestSimpleTableWithEnum|MyGame.Example2.Monster|null, 
+  index: number
+): MyGame.Example.Monster|MyGame.Example.TestSimpleTableWithEnum|MyGame.Example2.Monster|null {
+  switch(MyGame.Example.AnyUniqueAliases[type]) {
+    case 'NONE': return null; 
+    case 'M': return accessor(index, new MyGame.Example.Monster())! as MyGame.Example.Monster;
+    case 'TS': return accessor(index, new MyGame.Example.TestSimpleTableWithEnum())! as MyGame.Example.TestSimpleTableWithEnum;
+    case 'M2': return accessor(index, new MyGame.Example2.Monster())! as MyGame.Example2.Monster;
+    default: return null;
+  }
+}
+}

 /**
 * @enum {number}
@@ -63,7 +121,35 @@ export enum AnyAmbiguousAliases{
  M1= 1,
  M2= 2,
  M3= 3
-}};
+};
+
+export function unionToAnyAmbiguousAliases(
+  type: AnyAmbiguousAliases,
+  accessor: (obj:MyGame.Example.Monster) => MyGame.Example.Monster|null
+): MyGame.Example.Monster|null {
+  switch(MyGame.Example.AnyAmbiguousAliases[type]) {
+    case 'NONE': return null; 
+    case 'M1': return accessor(new MyGame.Example.Monster())! as MyGame.Example.Monster;
+    case 'M2': return accessor(new MyGame.Example.Monster())! as MyGame.Example.Monster;
+    case 'M3': return accessor(new MyGame.Example.Monster())! as MyGame.Example.Monster;
+    default: return null;
+  }
+}
+
+export function unionListToAnyAmbiguousAliases(
+  type: AnyAmbiguousAliases, 
+  accessor: (index: number, obj:MyGame.Example.Monster) => MyGame.Example.Monster|null, 
+  index: number
+): MyGame.Example.Monster|null {
+  switch(MyGame.Example.AnyAmbiguousAliases[type]) {
+    case 'NONE': return null; 
+    case 'M1': return accessor(index, new MyGame.Example.Monster())! as MyGame.Example.Monster;
+    case 'M2': return accessor(index, new MyGame.Example.Monster())! as MyGame.Example.Monster;
+    case 'M3': return accessor(index, new MyGame.Example.Monster())! as MyGame.Example.Monster;
+    default: return null;
+  }
+}
+}

 /**
 * @constructor
@@ -123,6 +209,33 @@ static createInParentNamespace(builder:flatbuffers.Builder):flatbuffers.Offset {
  InParentNamespace.startInParentNamespace(builder);
  return InParentNamespace.endInParentNamespace(builder);
 }
+
+/**
+ * @returns InParentNamespaceT
+ */
+unpack(): InParentNamespaceT {
+  return new InParentNamespaceT();
+};
+
+/**
+ * @param InParentNamespaceT _o
+ */
+unpackTo(_o: InParentNamespaceT): void {};
+}
+
+export class InParentNamespaceT {
+/**
+ * @constructor
+ */
+constructor(){};
+
+/**
+ * @param flatbuffers.Builder builder
+ * @returns flatbuffers.Offset
+ */
+pack(builder:flatbuffers.Builder): flatbuffers.Offset {
+  return InParentNamespace.createInParentNamespace(builder);
+};
 }
 }
 /**
@@ -183,6 +296,33 @@ static createMonster(builder:flatbuffers.Builder):flatbuffers.Offset {
  Monster.startMonster(builder);
  return Monster.endMonster(builder);
 }
+
+/**
+ * @returns MonsterT
+ */
+unpack(): MonsterT {
+  return new MonsterT();
+};
+
+/**
+ * @param MonsterT _o
+ */
+unpackTo(_o: MonsterT): void {};
+}
+
+export class MonsterT {
+/**
+ * @constructor
+ */
+constructor(){};
+
+/**
+ * @param flatbuffers.Builder builder
+ * @returns flatbuffers.Offset
+ */
+pack(builder:flatbuffers.Builder): flatbuffers.Offset {
+  return Monster.createMonster(builder);
+};
 }
 }
 /**
@@ -262,6 +402,47 @@ static createTest(builder:flatbuffers.Builder, a: number, b: number):flatbuffers
  return builder.offset();
 };

+
+/**
+ * @returns TestT
+ */
+unpack(): TestT {
+  return new TestT(
+    this.a(),
+    this.b()
+  );
+};
+
+/**
+ * @param TestT _o
+ */
+unpackTo(_o: TestT): void {
+  _o.a = this.a();
+  _o.b = this.b();
+};
+}
+
+export class TestT {
+/**
+ * @constructor
+ * @param number a
+ * @param number b
+ */
+constructor(
+  public a: number = 0,
+  public b: number = 0
+){};
+
+/**
+ * @param flatbuffers.Builder builder
+ * @returns flatbuffers.Offset
+ */
+pack(builder:flatbuffers.Builder): flatbuffers.Offset {
+  return Test.createTest(builder,
+    this.a,
+    this.b
+  );
+};
 }
 }
 /**
@@ -354,6 +535,42 @@ static createTestSimpleTableWithEnum(builder:flatbuffers.Builder, color:MyGame.E
  TestSimpleTableWithEnum.addColor(builder, color);
  return TestSimpleTableWithEnum.endTestSimpleTableWithEnum(builder);
 }
+
+/**
+ * @returns TestSimpleTableWithEnumT
+ */
+unpack(): TestSimpleTableWithEnumT {
+  return new TestSimpleTableWithEnumT(
+    this.color()
+  );
+};
+
+/**
+ * @param TestSimpleTableWithEnumT _o
+ */
+unpackTo(_o: TestSimpleTableWithEnumT): void {
+  _o.color = this.color();
+};
+}
+
+export class TestSimpleTableWithEnumT {
+/**
+ * @constructor
+ * @param MyGame.Example.Color color
+ */
+constructor(
+  public color: MyGame.Example.Color = MyGame.Example.Color.Green
+){};
+
+/**
+ * @param flatbuffers.Builder builder
+ * @returns flatbuffers.Offset
+ */
+pack(builder:flatbuffers.Builder): flatbuffers.Offset {
+  return TestSimpleTableWithEnum.createTestSimpleTableWithEnum(builder,
+    this.color
+  );
+};
 }
 }
 /**
@@ -521,6 +738,68 @@ static createVec3(builder:flatbuffers.Builder, x: number, y: number, z: number,
  return builder.offset();
 };

+
+/**
+ * @returns Vec3T
+ */
+unpack(): Vec3T {
+  return new Vec3T(
+    this.x(),
+    this.y(),
+    this.z(),
+    this.test1(),
+    this.test2(),
+    (this.test3() !== null ? this.test3()!.unpack() : null)
+  );
+};
+
+/**
+ * @param Vec3T _o
+ */
+unpackTo(_o: Vec3T): void {
+  _o.x = this.x();
+  _o.y = this.y();
+  _o.z = this.z();
+  _o.test1 = this.test1();
+  _o.test2 = this.test2();
+  _o.test3 = (this.test3() !== null ? this.test3()!.unpack() : null);
+};
+}
+
+export class Vec3T {
+/**
+ * @constructor
+ * @param number x
+ * @param number y
+ * @param number z
+ * @param number test1
+ * @param MyGame.Example.Color test2
+ * @param MyGame.Example.TestT|null test3
+ */
+constructor(
+  public x: number = 0.0,
+  public y: number = 0.0,
+  public z: number = 0.0,
+  public test1: number = 0.0,
+  public test2: MyGame.Example.Color = /** } */ (0),
+  public test3: MyGame.Example.TestT|null = null
+){};
+
+/**
+ * @param flatbuffers.Builder builder
+ * @returns flatbuffers.Offset
+ */
+pack(builder:flatbuffers.Builder): flatbuffers.Offset {
+  return Vec3.createVec3(builder,
+    this.x,
+    this.y,
+    this.z,
+    this.test1,
+    this.test2,
+    (this.test3 === null ? 0 : this.test3.a!),
+    (this.test3 === null ? 0 : this.test3.b!)
+  );
+};
 }
 }
 /**
@@ -599,6 +878,47 @@ static createAbility(builder:flatbuffers.Builder, id: number, distance: number):
  return builder.offset();
 };

+
+/**
+ * @returns AbilityT
+ */
+unpack(): AbilityT {
+  return new AbilityT(
+    this.id(),
+    this.distance()
+  );
+};
+
+/**
+ * @param AbilityT _o
+ */
+unpackTo(_o: AbilityT): void {
+  _o.id = this.id();
+  _o.distance = this.distance();
+};
+}
+
+export class AbilityT {
+/**
+ * @constructor
+ * @param number id
+ * @param number distance
+ */
+constructor(
+  public id: number = 0,
+  public distance: number = 0
+){};
+
+/**
+ * @param flatbuffers.Builder builder
+ * @returns flatbuffers.Offset
+ */
+pack(builder:flatbuffers.Builder): flatbuffers.Offset {
+  return Ability.createAbility(builder,
+    this.id,
+    this.distance
+  );
+};
 }
 }
 /**
@@ -743,6 +1063,54 @@ static createStat(builder:flatbuffers.Builder, idOffset:flatbuffers.Offset, val:
  Stat.addCount(builder, count);
  return Stat.endStat(builder);
 }
+
+/**
+ * @returns StatT
+ */
+unpack(): StatT {
+  return new StatT(
+    this.id(),
+    this.val(),
+    this.count()
+  );
+};
+
+/**
+ * @param StatT _o
+ */
+unpackTo(_o: StatT): void {
+  _o.id = this.id();
+  _o.val = this.val();
+  _o.count = this.count();
+};
+}
+
+export class StatT {
+/**
+ * @constructor
+ * @param string|Uint8Array|null id
+ * @param flatbuffers.Long val
+ * @param number count
+ */
+constructor(
+  public id: string|Uint8Array|null = null,
+  public val: flatbuffers.Long = flatbuffers.createLong(0, 0),
+  public count: number = 0
+){};
+
+/**
+ * @param flatbuffers.Builder builder
+ * @returns flatbuffers.Offset
+ */
+pack(builder:flatbuffers.Builder): flatbuffers.Offset {
+  const id = (this.id !== null ? builder.createString(this.id!) : 0);
+
+  return Stat.createStat(builder,
+    id,
+    this.val,
+    this.count
+  );
+};
 }
 }
 /**
@@ -835,6 +1203,42 @@ static createReferrable(builder:flatbuffers.Builder, id:flatbuffers.Long):flatbu
  Referrable.addId(builder, id);
  return Referrable.endReferrable(builder);
 }
+
+/**
+ * @returns ReferrableT
+ */
+unpack(): ReferrableT {
+  return new ReferrableT(
+    this.id()
+  );
+};
+
+/**
+ * @param ReferrableT _o
+ */
+unpackTo(_o: ReferrableT): void {
+  _o.id = this.id();
+};
+}
+
+export class ReferrableT {
+/**
+ * @constructor
+ * @param flatbuffers.Long id
+ */
+constructor(
+  public id: flatbuffers.Long = flatbuffers.createLong(0, 0)
+){};
+
+/**
+ * @param flatbuffers.Builder builder
+ * @returns flatbuffers.Offset
+ */
+pack(builder:flatbuffers.Builder): flatbuffers.Offset {
+  return Referrable.createReferrable(builder,
+    this.id
+  );
+};
 }
 }
 /**
@@ -2597,6 +3001,324 @@ static createMonster(builder:flatbuffers.Builder, posOffset:flatbuffers.Offset,
  Monster.addSignedEnum(builder, signedEnum);
  return Monster.endMonster(builder);
 }
+
+/**
+ * @returns MonsterT
+ */
+unpack(): MonsterT {
+  return new MonsterT(
+    (this.pos() !== null ? this.pos()!.unpack() : null),
+    this.mana(),
+    this.hp(),
+    this.name(),
+    this.bb!.createScalarList(this.inventory.bind(this), this.inventoryLength()),
+    this.color(),
+    this.testType(),
+    (() => {
+      let temp = MyGame.Example.unionToAny(this.testType(), this.test.bind(this));
+      if(temp === null) { return null; }
+      return temp.unpack()
+  })(),
+    this.bb!.createObjList(this.test4.bind(this), this.test4Length()),
+    this.bb!.createStringList(this.testarrayofstring.bind(this), this.testarrayofstringLength()),
+    this.bb!.createObjList(this.testarrayoftables.bind(this), this.testarrayoftablesLength()),
+    (this.enemy() !== null ? this.enemy()!.unpack() : null),
+    this.bb!.createScalarList(this.testnestedflatbuffer.bind(this), this.testnestedflatbufferLength()),
+    (this.testempty() !== null ? this.testempty()!.unpack() : null),
+    this.testbool(),
+    this.testhashs32Fnv1(),
+    this.testhashu32Fnv1(),
+    this.testhashs64Fnv1(),
+    this.testhashu64Fnv1(),
+    this.testhashs32Fnv1a(),
+    this.testhashu32Fnv1a(),
+    this.testhashs64Fnv1a(),
+    this.testhashu64Fnv1a(),
+    this.bb!.createScalarList(this.testarrayofbools.bind(this), this.testarrayofboolsLength()),
+    this.testf(),
+    this.testf2(),
+    this.testf3(),
+    this.bb!.createStringList(this.testarrayofstring2.bind(this), this.testarrayofstring2Length()),
+    this.bb!.createObjList(this.testarrayofsortedstruct.bind(this), this.testarrayofsortedstructLength()),
+    this.bb!.createScalarList(this.flex.bind(this), this.flexLength()),
+    this.bb!.createObjList(this.test5.bind(this), this.test5Length()),
+    this.bb!.createScalarList(this.vectorOfLongs.bind(this), this.vectorOfLongsLength()),
+    this.bb!.createScalarList(this.vectorOfDoubles.bind(this), this.vectorOfDoublesLength()),
+    (this.parentNamespaceTest() !== null ? this.parentNamespaceTest()!.unpack() : null),
+    this.bb!.createObjList(this.vectorOfReferrables.bind(this), this.vectorOfReferrablesLength()),
+    this.singleWeakReference(),
+    this.bb!.createScalarList(this.vectorOfWeakReferences.bind(this), this.vectorOfWeakReferencesLength()),
+    this.bb!.createObjList(this.vectorOfStrongReferrables.bind(this), this.vectorOfStrongReferrablesLength()),
+    this.coOwningReference(),
+    this.bb!.createScalarList(this.vectorOfCoOwningReferences.bind(this), this.vectorOfCoOwningReferencesLength()),
+    this.nonOwningReference(),
+    this.bb!.createScalarList(this.vectorOfNonOwningReferences.bind(this), this.vectorOfNonOwningReferencesLength()),
+    this.anyUniqueType(),
+    (() => {
+      let temp = MyGame.Example.unionToAnyUniqueAliases(this.anyUniqueType(), this.anyUnique.bind(this));
+      if(temp === null) { return null; }
+      return temp.unpack()
+  })(),
+    this.anyAmbiguousType(),
+    (() => {
+      let temp = MyGame.Example.unionToAnyAmbiguousAliases(this.anyAmbiguousType(), this.anyAmbiguous.bind(this));
+      if(temp === null) { return null; }
+      return temp.unpack()
+  })(),
+    this.bb!.createScalarList(this.vectorOfEnums.bind(this), this.vectorOfEnumsLength()),
+    this.signedEnum()
+  );
+};
+
+/**
+ * @param MonsterT _o
+ */
+unpackTo(_o: MonsterT): void {
+  _o.pos = (this.pos() !== null ? this.pos()!.unpack() : null);
+  _o.mana = this.mana();
+  _o.hp = this.hp();
+  _o.name = this.name();
+  _o.inventory = this.bb!.createScalarList(this.inventory.bind(this), this.inventoryLength());
+  _o.color = this.color();
+  _o.testType = this.testType();
+  _o.test = (() => {
+      let temp = MyGame.Example.unionToAny(this.testType(), this.test.bind(this));
+      if(temp === null) { return null; }
+      return temp.unpack()
+  })();
+  _o.test4 = this.bb!.createObjList(this.test4.bind(this), this.test4Length());
+  _o.testarrayofstring = this.bb!.createStringList(this.testarrayofstring.bind(this), this.testarrayofstringLength());
+  _o.testarrayoftables = this.bb!.createObjList(this.testarrayoftables.bind(this), this.testarrayoftablesLength());
+  _o.enemy = (this.enemy() !== null ? this.enemy()!.unpack() : null);
+  _o.testnestedflatbuffer = this.bb!.createScalarList(this.testnestedflatbuffer.bind(this), this.testnestedflatbufferLength());
+  _o.testempty = (this.testempty() !== null ? this.testempty()!.unpack() : null);
+  _o.testbool = this.testbool();
+  _o.testhashs32Fnv1 = this.testhashs32Fnv1();
+  _o.testhashu32Fnv1 = this.testhashu32Fnv1();
+  _o.testhashs64Fnv1 = this.testhashs64Fnv1();
+  _o.testhashu64Fnv1 = this.testhashu64Fnv1();
+  _o.testhashs32Fnv1a = this.testhashs32Fnv1a();
+  _o.testhashu32Fnv1a = this.testhashu32Fnv1a();
+  _o.testhashs64Fnv1a = this.testhashs64Fnv1a();
+  _o.testhashu64Fnv1a = this.testhashu64Fnv1a();
+  _o.testarrayofbools = this.bb!.createScalarList(this.testarrayofbools.bind(this), this.testarrayofboolsLength());
+  _o.testf = this.testf();
+  _o.testf2 = this.testf2();
+  _o.testf3 = this.testf3();
+  _o.testarrayofstring2 = this.bb!.createStringList(this.testarrayofstring2.bind(this), this.testarrayofstring2Length());
+  _o.testarrayofsortedstruct = this.bb!.createObjList(this.testarrayofsortedstruct.bind(this), this.testarrayofsortedstructLength());
+  _o.flex = this.bb!.createScalarList(this.flex.bind(this), this.flexLength());
+  _o.test5 = this.bb!.createObjList(this.test5.bind(this), this.test5Length());
+  _o.vectorOfLongs = this.bb!.createScalarList(this.vectorOfLongs.bind(this), this.vectorOfLongsLength());
+  _o.vectorOfDoubles = this.bb!.createScalarList(this.vectorOfDoubles.bind(this), this.vectorOfDoublesLength());
+  _o.parentNamespaceTest = (this.parentNamespaceTest() !== null ? this.parentNamespaceTest()!.unpack() : null);
+  _o.vectorOfReferrables = this.bb!.createObjList(this.vectorOfReferrables.bind(this), this.vectorOfReferrablesLength());
+  _o.singleWeakReference = this.singleWeakReference();
+  _o.vectorOfWeakReferences = this.bb!.createScalarList(this.vectorOfWeakReferences.bind(this), this.vectorOfWeakReferencesLength());
+  _o.vectorOfStrongReferrables = this.bb!.createObjList(this.vectorOfStrongReferrables.bind(this), this.vectorOfStrongReferrablesLength());
+  _o.coOwningReference = this.coOwningReference();
+  _o.vectorOfCoOwningReferences = this.bb!.createScalarList(this.vectorOfCoOwningReferences.bind(this), this.vectorOfCoOwningReferencesLength());
+  _o.nonOwningReference = this.nonOwningReference();
+  _o.vectorOfNonOwningReferences = this.bb!.createScalarList(this.vectorOfNonOwningReferences.bind(this), this.vectorOfNonOwningReferencesLength());
+  _o.anyUniqueType = this.anyUniqueType();
+  _o.anyUnique = (() => {
+      let temp = MyGame.Example.unionToAnyUniqueAliases(this.anyUniqueType(), this.anyUnique.bind(this));
+      if(temp === null) { return null; }
+      return temp.unpack()
+  })();
+  _o.anyAmbiguousType = this.anyAmbiguousType();
+  _o.anyAmbiguous = (() => {
+      let temp = MyGame.Example.unionToAnyAmbiguousAliases(this.anyAmbiguousType(), this.anyAmbiguous.bind(this));
+      if(temp === null) { return null; }
+      return temp.unpack()
+  })();
+  _o.vectorOfEnums = this.bb!.createScalarList(this.vectorOfEnums.bind(this), this.vectorOfEnumsLength());
+  _o.signedEnum = this.signedEnum();
+};
+}
+
+export class MonsterT {
+/**
+ * @constructor
+ * @param MyGame.Example.Vec3T|null pos
+ * @param number mana
+ * @param number hp
+ * @param string|Uint8Array|null name
+ * @param (number)[] inventory
+ * @param MyGame.Example.Color color
+ * @param MyGame.Example.Any testType
+ * @param MyGame.Example.MonsterT|MyGame.Example.TestSimpleTableWithEnumT|MyGame.Example2.MonsterT|null test
+ * @param (MyGame.Example.TestT)[] test4
+ * @param (string)[] testarrayofstring
+ * @param (MyGame.Example.MonsterT)[] testarrayoftables
+ * @param MyGame.Example.MonsterT|null enemy
+ * @param (number)[] testnestedflatbuffer
+ * @param MyGame.Example.StatT|null testempty
+ * @param boolean testbool
+ * @param number testhashs32Fnv1
+ * @param number testhashu32Fnv1
+ * @param flatbuffers.Long testhashs64Fnv1
+ * @param flatbuffers.Long testhashu64Fnv1
+ * @param number testhashs32Fnv1a
+ * @param number testhashu32Fnv1a
+ * @param flatbuffers.Long testhashs64Fnv1a
+ * @param flatbuffers.Long testhashu64Fnv1a
+ * @param (boolean)[] testarrayofbools
+ * @param number testf
+ * @param number testf2
+ * @param number testf3
+ * @param (string)[] testarrayofstring2
+ * @param (MyGame.Example.AbilityT)[] testarrayofsortedstruct
+ * @param (number)[] flex
+ * @param (MyGame.Example.TestT)[] test5
+ * @param (flatbuffers.Long)[] vectorOfLongs
+ * @param (number)[] vectorOfDoubles
+ * @param MyGame.InParentNamespaceT|null parentNamespaceTest
+ * @param (MyGame.Example.ReferrableT)[] vectorOfReferrables
+ * @param flatbuffers.Long singleWeakReference
+ * @param (flatbuffers.Long)[] vectorOfWeakReferences
+ * @param (MyGame.Example.ReferrableT)[] vectorOfStrongReferrables
+ * @param flatbuffers.Long coOwningReference
+ * @param (flatbuffers.Long)[] vectorOfCoOwningReferences
+ * @param flatbuffers.Long nonOwningReference
+ * @param (flatbuffers.Long)[] vectorOfNonOwningReferences
+ * @param MyGame.Example.AnyUniqueAliases anyUniqueType
+ * @param MyGame.Example.MonsterT|MyGame.Example.TestSimpleTableWithEnumT|MyGame.Example2.MonsterT|null anyUnique
+ * @param MyGame.Example.AnyAmbiguousAliases anyAmbiguousType
+ * @param MyGame.Example.MonsterT|null anyAmbiguous
+ * @param (MyGame.Example.Color)[] vectorOfEnums
+ * @param MyGame.Example.Race signedEnum
+ */
+constructor(
+  public pos: MyGame.Example.Vec3T|null = null,
+  public mana: number = 150,
+  public hp: number = 100,
+  public name: string|Uint8Array|null = null,
+  public inventory: (number)[] = [],
+  public color: MyGame.Example.Color = MyGame.Example.Color.Blue,
+  public testType: MyGame.Example.Any = MyGame.Example.Any.NONE,
+  public test: MyGame.Example.MonsterT|MyGame.Example.TestSimpleTableWithEnumT|MyGame.Example2.MonsterT|null = null,
+  public test4: (MyGame.Example.TestT)[] = [],
+  public testarrayofstring: (string)[] = [],
+  public testarrayoftables: (MyGame.Example.MonsterT)[] = [],
+  public enemy: MyGame.Example.MonsterT|null = null,
+  public testnestedflatbuffer: (number)[] = [],
+  public testempty: MyGame.Example.StatT|null = null,
+  public testbool: boolean = false,
+  public testhashs32Fnv1: number = 0,
+  public testhashu32Fnv1: number = 0,
+  public testhashs64Fnv1: flatbuffers.Long = flatbuffers.createLong(0, 0),
+  public testhashu64Fnv1: flatbuffers.Long = flatbuffers.createLong(0, 0),
+  public testhashs32Fnv1a: number = 0,
+  public testhashu32Fnv1a: number = 0,
+  public testhashs64Fnv1a: flatbuffers.Long = flatbuffers.createLong(0, 0),
+  public testhashu64Fnv1a: flatbuffers.Long = flatbuffers.createLong(0, 0),
+  public testarrayofbools: (boolean)[] = [],
+  public testf: number = 3.14159,
+  public testf2: number = 3.0,
+  public testf3: number = 0.0,
+  public testarrayofstring2: (string)[] = [],
+  public testarrayofsortedstruct: (MyGame.Example.AbilityT)[] = [],
+  public flex: (number)[] = [],
+  public test5: (MyGame.Example.TestT)[] = [],
+  public vectorOfLongs: (flatbuffers.Long)[] = [],
+  public vectorOfDoubles: (number)[] = [],
+  public parentNamespaceTest: MyGame.InParentNamespaceT|null = null,
+  public vectorOfReferrables: (MyGame.Example.ReferrableT)[] = [],
+  public singleWeakReference: flatbuffers.Long = flatbuffers.createLong(0, 0),
+  public vectorOfWeakReferences: (flatbuffers.Long)[] = [],
+  public vectorOfStrongReferrables: (MyGame.Example.ReferrableT)[] = [],
+  public coOwningReference: flatbuffers.Long = flatbuffers.createLong(0, 0),
+  public vectorOfCoOwningReferences: (flatbuffers.Long)[] = [],
+  public nonOwningReference: flatbuffers.Long = flatbuffers.createLong(0, 0),
+  public vectorOfNonOwningReferences: (flatbuffers.Long)[] = [],
+  public anyUniqueType: MyGame.Example.AnyUniqueAliases = MyGame.Example.AnyUniqueAliases.NONE,
+  public anyUnique: MyGame.Example.MonsterT|MyGame.Example.TestSimpleTableWithEnumT|MyGame.Example2.MonsterT|null = null,
+  public anyAmbiguousType: MyGame.Example.AnyAmbiguousAliases = MyGame.Example.AnyAmbiguousAliases.NONE,
+  public anyAmbiguous: MyGame.Example.MonsterT|null = null,
+  public vectorOfEnums: (MyGame.Example.Color)[] = [],
+  public signedEnum: MyGame.Example.Race = MyGame.Example.Race.None
+){};
+
+/**
+ * @param flatbuffers.Builder builder
+ * @returns flatbuffers.Offset
+ */
+pack(builder:flatbuffers.Builder): flatbuffers.Offset {
+  const name = (this.name !== null ? builder.createString(this.name!) : 0);
+  const inventory = Monster.createInventoryVector(builder, this.inventory);
+  const test = builder.createObjectOffset(this.test);
+  const test4 = builder.createStructOffsetList(this.test4, Monster.startTest4Vector);
+  const testarrayofstring = Monster.createTestarrayofstringVector(builder, builder.createObjectOffsetList(this.testarrayofstring));
+  const testarrayoftables = Monster.createTestarrayoftablesVector(builder, builder.createObjectOffsetList(this.testarrayoftables));
+  const testnestedflatbuffer = Monster.createTestnestedflatbufferVector(builder, this.testnestedflatbuffer);
+  const testarrayofbools = Monster.createTestarrayofboolsVector(builder, this.testarrayofbools);
+  const testarrayofstring2 = Monster.createTestarrayofstring2Vector(builder, builder.createObjectOffsetList(this.testarrayofstring2));
+  const testarrayofsortedstruct = builder.createStructOffsetList(this.testarrayofsortedstruct, Monster.startTestarrayofsortedstructVector);
+  const flex = Monster.createFlexVector(builder, this.flex);
+  const test5 = builder.createStructOffsetList(this.test5, Monster.startTest5Vector);
+  const vectorOfLongs = Monster.createVectorOfLongsVector(builder, this.vectorOfLongs);
+  const vectorOfDoubles = Monster.createVectorOfDoublesVector(builder, this.vectorOfDoubles);
+  const vectorOfReferrables = Monster.createVectorOfReferrablesVector(builder, builder.createObjectOffsetList(this.vectorOfReferrables));
+  const vectorOfWeakReferences = Monster.createVectorOfWeakReferencesVector(builder, this.vectorOfWeakReferences);
+  const vectorOfStrongReferrables = Monster.createVectorOfStrongReferrablesVector(builder, builder.createObjectOffsetList(this.vectorOfStrongReferrables));
+  const vectorOfCoOwningReferences = Monster.createVectorOfCoOwningReferencesVector(builder, this.vectorOfCoOwningReferences);
+  const vectorOfNonOwningReferences = Monster.createVectorOfNonOwningReferencesVector(builder, this.vectorOfNonOwningReferences);
+  const anyUnique = builder.createObjectOffset(this.anyUnique);
+  const anyAmbiguous = builder.createObjectOffset(this.anyAmbiguous);
+  const vectorOfEnums = Monster.createVectorOfEnumsVector(builder, this.vectorOfEnums);
+
+  return Monster.createMonster(builder,
+    (this.pos !== null ? this.pos!.pack(builder) : 0),
+    this.mana,
+    this.hp,
+    name,
+    inventory,
+    this.color,
+    this.testType,
+    test,
+    test4,
+    testarrayofstring,
+    testarrayoftables,
+    (this.enemy !== null ? this.enemy!.pack(builder) : 0),
+    testnestedflatbuffer,
+    (this.testempty !== null ? this.testempty!.pack(builder) : 0),
+    this.testbool,
+    this.testhashs32Fnv1,
+    this.testhashu32Fnv1,
+    this.testhashs64Fnv1,
+    this.testhashu64Fnv1,
+    this.testhashs32Fnv1a,
+    this.testhashu32Fnv1a,
+    this.testhashs64Fnv1a,
+    this.testhashu64Fnv1a,
+    testarrayofbools,
+    this.testf,
+    this.testf2,
+    this.testf3,
+    testarrayofstring2,
+    testarrayofsortedstruct,
+    flex,
+    test5,
+    vectorOfLongs,
+    vectorOfDoubles,
+    (this.parentNamespaceTest !== null ? this.parentNamespaceTest!.pack(builder) : 0),
+    vectorOfReferrables,
+    this.singleWeakReference,
+    vectorOfWeakReferences,
+    vectorOfStrongReferrables,
+    this.coOwningReference,
+    vectorOfCoOwningReferences,
+    this.nonOwningReference,
+    vectorOfNonOwningReferences,
+    this.anyUniqueType,
+    anyUnique,
+    this.anyAmbiguousType,
+    anyAmbiguous,
+    vectorOfEnums,
+    this.signedEnum
+  );
+};
 }
 }
 /**
@@ -3087,5 +3809,99 @@ static createTypeAliases(builder:flatbuffers.Builder, i8:number, u8:number, i16:
  TypeAliases.addVf64(builder, vf64Offset);
  return TypeAliases.endTypeAliases(builder);
 }
+
+/**
+ * @returns TypeAliasesT
+ */
+unpack(): TypeAliasesT {
+  return new TypeAliasesT(
+    this.i8(),
+    this.u8(),
+    this.i16(),
+    this.u16(),
+    this.i32(),
+    this.u32(),
+    this.i64(),
+    this.u64(),
+    this.f32(),
+    this.f64(),
+    this.bb!.createScalarList(this.v8.bind(this), this.v8Length()),
+    this.bb!.createScalarList(this.vf64.bind(this), this.vf64Length())
+  );
+};
+
+/**
+ * @param TypeAliasesT _o
+ */
+unpackTo(_o: TypeAliasesT): void {
+  _o.i8 = this.i8();
+  _o.u8 = this.u8();
+  _o.i16 = this.i16();
+  _o.u16 = this.u16();
+  _o.i32 = this.i32();
+  _o.u32 = this.u32();
+  _o.i64 = this.i64();
+  _o.u64 = this.u64();
+  _o.f32 = this.f32();
+  _o.f64 = this.f64();
+  _o.v8 = this.bb!.createScalarList(this.v8.bind(this), this.v8Length());
+  _o.vf64 = this.bb!.createScalarList(this.vf64.bind(this), this.vf64Length());
+};
+}
+
+export class TypeAliasesT {
+/**
+ * @constructor
+ * @param number i8
+ * @param number u8
+ * @param number i16
+ * @param number u16
+ * @param number i32
+ * @param number u32
+ * @param flatbuffers.Long i64
+ * @param flatbuffers.Long u64
+ * @param number f32
+ * @param number f64
+ * @param (number)[] v8
+ * @param (number)[] vf64
+ */
+constructor(
+  public i8: number = 0,
+  public u8: number = 0,
+  public i16: number = 0,
+  public u16: number = 0,
+  public i32: number = 0,
+  public u32: number = 0,
+  public i64: flatbuffers.Long = flatbuffers.createLong(0, 0),
+  public u64: flatbuffers.Long = flatbuffers.createLong(0, 0),
+  public f32: number = 0.0,
+  public f64: number = 0.0,
+  public v8: (number)[] = [],
+  public vf64: (number)[] = []
+){};
+
+/**
+ * @param flatbuffers.Builder builder
+ * @returns flatbuffers.Offset
+ */
+pack(builder:flatbuffers.Builder): flatbuffers.Offset {
+  const v8 = TypeAliases.createV8Vector(builder, this.v8);
+  const vf64 = TypeAliases.createVf64Vector(builder, this.vf64);
+
+  return TypeAliases.createTypeAliases(builder,
+    this.i8,
+    this.u8,
+    this.i16,
+    this.u16,
+    this.i32,
+    this.u32,
+    this.i64,
+    this.u64,
+    this.f32,
+    this.f64,
+    v8,
+    vf64
+  );
+};
 }
 }
--- a/tests/namespace_test/namespace_test1_generated.ts
+++ b/tests/namespace_test/namespace_test1_generated.ts
@@ -8,7 +8,8 @@ export enum EnumInNestedNS{
  A= 0,
  B= 1,
  C= 2
-}};
+};
+}

 /**
 * @constructor
@@ -100,6 +101,42 @@ static createTableInNestedNS(builder:flatbuffers.Builder, foo:number):flatbuffer
  TableInNestedNS.addFoo(builder, foo);
  return TableInNestedNS.endTableInNestedNS(builder);
 }
+
+/**
+ * @returns TableInNestedNST
+ */
+unpack(): TableInNestedNST {
+  return new TableInNestedNST(
+    this.foo()
+  );
+};
+
+/**
+ * @param TableInNestedNST _o
+ */
+unpackTo(_o: TableInNestedNST): void {
+  _o.foo = this.foo();
+};
+}
+
+export class TableInNestedNST {
+/**
+ * @constructor
+ * @param number foo
+ */
+constructor(
+  public foo: number = 0
+){};
+
+/**
+ * @param flatbuffers.Builder builder
+ * @returns flatbuffers.Offset
+ */
+pack(builder:flatbuffers.Builder): flatbuffers.Offset {
+  return TableInNestedNS.createTableInNestedNS(builder,
+    this.foo
+  );
+};
 }
 }
 /**
@@ -178,5 +215,46 @@ static createStructInNestedNS(builder:flatbuffers.Builder, a: number, b: number)
  return builder.offset();
 };

+
+/**
+ * @returns StructInNestedNST
+ */
+unpack(): StructInNestedNST {
+  return new StructInNestedNST(
+    this.a(),
+    this.b()
+  );
+};
+
+/**
+ * @param StructInNestedNST _o
+ */
+unpackTo(_o: StructInNestedNST): void {
+  _o.a = this.a();
+  _o.b = this.b();
+};
+}
+
+export class StructInNestedNST {
+/**
+ * @constructor
+ * @param number a
+ * @param number b
+ */
+constructor(
+  public a: number = 0,
+  public b: number = 0
+){};
+
+/**
+ * @param flatbuffers.Builder builder
+ * @returns flatbuffers.Offset
+ */
+pack(builder:flatbuffers.Builder): flatbuffers.Offset {
+  return StructInNestedNS.createStructInNestedNS(builder,
+    this.a,
+    this.b
+  );
+};
 }
 }
--- a/tests/namespace_test/namespace_test2_generated.ts
+++ b/tests/namespace_test/namespace_test2_generated.ts
@@ -127,6 +127,52 @@ static createTableInFirstNS(builder:flatbuffers.Builder, fooTableOffset:flatbuff
  TableInFirstNS.addFooStruct(builder, fooStructOffset);
  return TableInFirstNS.endTableInFirstNS(builder);
 }
+
+/**
+ * @returns TableInFirstNST
+ */
+unpack(): TableInFirstNST {
+  return new TableInFirstNST(
+    (this.fooTable() !== null ? this.fooTable()!.unpack() : null),
+    this.fooEnum(),
+    (this.fooStruct() !== null ? this.fooStruct()!.unpack() : null)
+  );
+};
+
+/**
+ * @param TableInFirstNST _o
+ */
+unpackTo(_o: TableInFirstNST): void {
+  _o.fooTable = (this.fooTable() !== null ? this.fooTable()!.unpack() : null);
+  _o.fooEnum = this.fooEnum();
+  _o.fooStruct = (this.fooStruct() !== null ? this.fooStruct()!.unpack() : null);
+};
+}
+
+export class TableInFirstNST {
+/**
+ * @constructor
+ * @param NS8755221360535654258.NamespaceA.NamespaceB.TableInNestedNST|null fooTable
+ * @param NS8755221360535654258.NamespaceA.NamespaceB.EnumInNestedNS fooEnum
+ * @param NS8755221360535654258.NamespaceA.NamespaceB.StructInNestedNST|null fooStruct
+ */
+constructor(
+  public fooTable: NS8755221360535654258.NamespaceA.NamespaceB.TableInNestedNST|null = null,
+  public fooEnum: NS8755221360535654258.NamespaceA.NamespaceB.EnumInNestedNS = NS8755221360535654258.NamespaceA.NamespaceB.EnumInNestedNS.A,
+  public fooStruct: NS8755221360535654258.NamespaceA.NamespaceB.StructInNestedNST|null = null
+){};
+
+/**
+ * @param flatbuffers.Builder builder
+ * @returns flatbuffers.Offset
+ */
+pack(builder:flatbuffers.Builder): flatbuffers.Offset {
+  return TableInFirstNS.createTableInFirstNS(builder,
+    (this.fooTable !== null ? this.fooTable!.pack(builder) : 0),
+    this.fooEnum,
+    (this.fooStruct !== null ? this.fooStruct!.pack(builder) : 0)
+  );
+};
 }
 }
 /**
@@ -223,6 +269,47 @@ static createTableInC(builder:flatbuffers.Builder, referToA1Offset:flatbuffers.O
  TableInC.addReferToA2(builder, referToA2Offset);
  return TableInC.endTableInC(builder);
 }
+
+/**
+ * @returns TableInCT
+ */
+unpack(): TableInCT {
+  return new TableInCT(
+    (this.referToA1() !== null ? this.referToA1()!.unpack() : null),
+    (this.referToA2() !== null ? this.referToA2()!.unpack() : null)
+  );
+};
+
+/**
+ * @param TableInCT _o
+ */
+unpackTo(_o: TableInCT): void {
+  _o.referToA1 = (this.referToA1() !== null ? this.referToA1()!.unpack() : null);
+  _o.referToA2 = (this.referToA2() !== null ? this.referToA2()!.unpack() : null);
+};
+}
+
+export class TableInCT {
+/**
+ * @constructor
+ * @param NamespaceA.TableInFirstNST|null referToA1
+ * @param NamespaceA.SecondTableInAT|null referToA2
+ */
+constructor(
+  public referToA1: NamespaceA.TableInFirstNST|null = null,
+  public referToA2: NamespaceA.SecondTableInAT|null = null
+){};
+
+/**
+ * @param flatbuffers.Builder builder
+ * @returns flatbuffers.Offset
+ */
+pack(builder:flatbuffers.Builder): flatbuffers.Offset {
+  return TableInC.createTableInC(builder,
+    (this.referToA1 !== null ? this.referToA1!.pack(builder) : 0),
+    (this.referToA2 !== null ? this.referToA2!.pack(builder) : 0)
+  );
+};
 }
 }
 /**
@@ -301,5 +388,41 @@ static createSecondTableInA(builder:flatbuffers.Builder, referToCOffset:flatbuff
  SecondTableInA.addReferToC(builder, referToCOffset);
  return SecondTableInA.endSecondTableInA(builder);
 }
+
+/**
+ * @returns SecondTableInAT
+ */
+unpack(): SecondTableInAT {
+  return new SecondTableInAT(
+    (this.referToC() !== null ? this.referToC()!.unpack() : null)
+  );
+};
+
+/**
+ * @param SecondTableInAT _o
+ */
+unpackTo(_o: SecondTableInAT): void {
+  _o.referToC = (this.referToC() !== null ? this.referToC()!.unpack() : null);
+};
+}
+
+export class SecondTableInAT {
+/**
+ * @constructor
+ * @param NamespaceC.TableInCT|null referToC
+ */
+constructor(
+  public referToC: NamespaceC.TableInCT|null = null
+){};
+
+/**
+ * @param flatbuffers.Builder builder
+ * @returns flatbuffers.Offset
+ */
+pack(builder:flatbuffers.Builder): flatbuffers.Offset {
+  return SecondTableInA.createSecondTableInA(builder,
+    (this.referToC !== null ? this.referToC!.pack(builder) : 0)
+  );
+};
 }
 }
--- a/tests/union_vector/union_vector_generated.ts
+++ b/tests/union_vector/union_vector_generated.ts
@@ -13,6 +13,39 @@ export enum Character{
  Unused= 6
 };

+export function unionToCharacter(
+  type: Character,
+  accessor: (obj:Attacker|BookReader|Rapunzel|string) => Attacker|BookReader|Rapunzel|string|null
+): Attacker|BookReader|Rapunzel|string|null {
+  switch(Character[type]) {
+    case 'NONE': return null; 
+    case 'MuLan': return accessor(new Attacker())! as Attacker;
+    case 'Rapunzel': return accessor(new Rapunzel())! as Rapunzel;
+    case 'Belle': return accessor(new BookReader())! as BookReader;
+    case 'BookFan': return accessor(new BookReader())! as BookReader;
+    case 'Other': return accessor('') as string;
+    case 'Unused': return accessor('') as string;
+    default: return null;
+  }
+}
+
+export function unionListToCharacter(
+  type: Character, 
+  accessor: (index: number, obj:Attacker|BookReader|Rapunzel|string) => Attacker|BookReader|Rapunzel|string|null, 
+  index: number
+): Attacker|BookReader|Rapunzel|string|null {
+  switch(Character[type]) {
+    case 'NONE': return null; 
+    case 'MuLan': return accessor(index, new Attacker())! as Attacker;
+    case 'Rapunzel': return accessor(index, new Rapunzel())! as Rapunzel;
+    case 'Belle': return accessor(index, new BookReader())! as BookReader;
+    case 'BookFan': return accessor(index, new BookReader())! as BookReader;
+    case 'Other': return accessor(index, '') as string;
+    case 'Unused': return accessor(index, '') as string;
+    default: return null;
+  }
+}
+
 /**
 * @constructor
 */
@@ -102,6 +135,42 @@ static createAttacker(builder:flatbuffers.Builder, swordAttackDamage:number):fla
  Attacker.addSwordAttackDamage(builder, swordAttackDamage);
  return Attacker.endAttacker(builder);
 }
+
+/**
+ * @returns AttackerT
+ */
+unpack(): AttackerT {
+  return new AttackerT(
+    this.swordAttackDamage()
+  );
+};
+
+/**
+ * @param AttackerT _o
+ */
+unpackTo(_o: AttackerT): void {
+  _o.swordAttackDamage = this.swordAttackDamage();
+};
+}
+
+export class AttackerT {
+/**
+ * @constructor
+ * @param number swordAttackDamage
+ */
+constructor(
+  public swordAttackDamage: number = 0
+){};
+
+/**
+ * @param flatbuffers.Builder builder
+ * @returns flatbuffers.Offset
+ */
+pack(builder:flatbuffers.Builder): flatbuffers.Offset {
+  return Attacker.createAttacker(builder,
+    this.swordAttackDamage
+  );
+};
 }
 /**
 * @constructor
@@ -154,6 +223,42 @@ static createRapunzel(builder:flatbuffers.Builder, hair_length: number):flatbuff
  return builder.offset();
 };

+
+/**
+ * @returns RapunzelT
+ */
+unpack(): RapunzelT {
+  return new RapunzelT(
+    this.hairLength()
+  );
+};
+
+/**
+ * @param RapunzelT _o
+ */
+unpackTo(_o: RapunzelT): void {
+  _o.hairLength = this.hairLength();
+};
+}
+
+export class RapunzelT {
+/**
+ * @constructor
+ * @param number hairLength
+ */
+constructor(
+  public hairLength: number = 0
+){};
+
+/**
+ * @param flatbuffers.Builder builder
+ * @returns flatbuffers.Offset
+ */
+pack(builder:flatbuffers.Builder): flatbuffers.Offset {
+  return Rapunzel.createRapunzel(builder,
+    this.hairLength
+  );
+};
 }
 /**
 * @constructor
@@ -206,6 +311,42 @@ static createBookReader(builder:flatbuffers.Builder, books_read: number):flatbuf
  return builder.offset();
 };

+
+/**
+ * @returns BookReaderT
+ */
+unpack(): BookReaderT {
+  return new BookReaderT(
+    this.booksRead()
+  );
+};
+
+/**
+ * @param BookReaderT _o
+ */
+unpackTo(_o: BookReaderT): void {
+  _o.booksRead = this.booksRead();
+};
+}
+
+export class BookReaderT {
+/**
+ * @constructor
+ * @param number booksRead
+ */
+constructor(
+  public booksRead: number = 0
+){};
+
+/**
+ * @param flatbuffers.Builder builder
+ * @returns flatbuffers.Offset
+ */
+pack(builder:flatbuffers.Builder): flatbuffers.Offset {
+  return BookReader.createBookReader(builder,
+    this.booksRead
+  );
+};
 }
 /**
 * @constructor
@@ -264,9 +405,9 @@ mainCharacterType():Character {
 * @param flatbuffers.Table obj
 * @returns ?flatbuffers.Table
 */
-mainCharacter<T extends flatbuffers.Table>(obj:T):T|null {
+mainCharacter<T extends flatbuffers.Table>(obj:T|string):T|string|null {
  var offset = this.bb!.__offset(this.bb_pos, 6);
-  return offset ? this.bb!.__union(obj, this.bb_pos + offset) : null;
+  return offset ? this.bb!.__union_with_string(obj, this.bb_pos + offset) : null;
 };

 /**
@@ -299,9 +440,9 @@ charactersTypeArray():Uint8Array|null {
 * @param flatbuffers.Table= obj
 * @returns ?flatbuffers.Table
 */
-characters<T extends flatbuffers.Table>(index: number, obj:T):T|null {
+characters<T extends flatbuffers.Table>(index: number, obj:T|string):T|string|null {
  var offset = this.bb!.__offset(this.bb_pos, 10);
-  return offset ? this.bb!.__union(obj, this.bb!.__vector(this.bb_pos + offset) + index * 4) : null;
+  return offset ? this.bb!.__union_with_string(obj, this.bb!.__vector(this.bb_pos + offset) + index * 4) : null;
 };

 /**
@@ -426,4 +567,93 @@ static createMovie(builder:flatbuffers.Builder, mainCharacterType:Character, mai
  Movie.addCharacters(builder, charactersOffset);
  return Movie.endMovie(builder);
 }
+
+/**
+ * @returns MovieT
+ */
+unpack(): MovieT {
+  return new MovieT(
+    this.mainCharacterType(),
+    (() => {
+      let temp = unionToCharacter(this.mainCharacterType(), this.mainCharacter.bind(this));
+      if(temp === null) { return null; }
+      if(typeof temp === 'string') { return temp; }
+      return temp.unpack()
+  })(),
+    this.bb!.createScalarList(this.charactersType.bind(this), this.charactersTypeLength()),
+    (() => {
+    let ret = [];
+    for(let targetEnumIndex = 0; targetEnumIndex < this.charactersTypeLength(); ++targetEnumIndex) {
+      let targetEnum = this.charactersType(targetEnumIndex);
+      if(targetEnum === null || Character[targetEnum!] === 'NONE') { continue; }
+
+      let temp = unionListToCharacter(targetEnum, this.characters.bind(this), targetEnumIndex);
+      if(temp === null) { continue; }
+      if(typeof temp === 'string') { ret.push(temp); continue; }
+      ret.push(temp.unpack());
+    }
+    return ret;
+  })()
+  );
+};
+
+/**
+ * @param MovieT _o
+ */
+unpackTo(_o: MovieT): void {
+  _o.mainCharacterType = this.mainCharacterType();
+  _o.mainCharacter = (() => {
+      let temp = unionToCharacter(this.mainCharacterType(), this.mainCharacter.bind(this));
+      if(temp === null) { return null; }
+      if(typeof temp === 'string') { return temp; }
+      return temp.unpack()
+  })();
+  _o.charactersType = this.bb!.createScalarList(this.charactersType.bind(this), this.charactersTypeLength());
+  _o.characters = (() => {
+    let ret = [];
+    for(let targetEnumIndex = 0; targetEnumIndex < this.charactersTypeLength(); ++targetEnumIndex) {
+      let targetEnum = this.charactersType(targetEnumIndex);
+      if(targetEnum === null || Character[targetEnum!] === 'NONE') { continue; }
+
+      let temp = unionListToCharacter(targetEnum, this.characters.bind(this), targetEnumIndex);
+      if(temp === null) { continue; }
+      if(typeof temp === 'string') { ret.push(temp); continue; }
+      ret.push(temp.unpack());
+    }
+    return ret;
+  })();
+};
+}
+
+export class MovieT {
+/**
+ * @constructor
+ * @param Character mainCharacterType
+ * @param AttackerT|BookReaderT|RapunzelT|string|null mainCharacter
+ * @param (Character)[] charactersType
+ * @param (AttackerT|BookReaderT|RapunzelT|string)[] characters
+ */
+constructor(
+  public mainCharacterType: Character = Character.NONE,
+  public mainCharacter: AttackerT|BookReaderT|RapunzelT|string|null = null,
+  public charactersType: (Character)[] = [],
+  public characters: (AttackerT|BookReaderT|RapunzelT|string)[] = []
+){};
+
+/**
+ * @param flatbuffers.Builder builder
+ * @returns flatbuffers.Offset
+ */
+pack(builder:flatbuffers.Builder): flatbuffers.Offset {
+  const mainCharacter = builder.createObjectOffset(this.mainCharacter);
+  const charactersType = Movie.createCharactersTypeVector(builder, this.charactersType);
+  const characters = Movie.createCharactersVector(builder, builder.createObjectOffsetList(this.characters));
+
+  return Movie.createMovie(builder,
+    this.mainCharacterType,
+    mainCharacter,
+    charactersType,
+    characters
+  );
+};
 }