Implementation:Alibaba MNN FlatBuffers Reflection Generated

Knowledge Sources	Alibaba_MNN FlatBuffers
Domains	Serialization, Code_Generation
Last Updated	2026-02-10 12:00 GMT

Overview

Auto-generated C++ accessors for the FlatBuffers reflection schema, enabling runtime introspection of binary schemas.

Description

reflection_generated.h is a machine-generated header produced by flatc from the reflection schema (reflection.fbs). It defines zero-copy accessor classes for every element of the reflection schema: Schema, Object, Field, Enum, EnumVal, Type, and Service. These accessors allow code to inspect the structure of any FlatBuffers binary schema at runtime.

Usage

Vendored dependency used internally by MNN for model serialization. Not directly imported by end users.

Code Reference

Source Location

• Repository: Alibaba_MNN
• File: 3rd_party/flatbuffers/include/flatbuffers/reflection_generated.h
• Lines: 1-1182

Signature

namespace reflection {
  struct Schema;
  struct Object;
  struct Field;
  struct Enum;
  struct EnumVal;
  const Schema *GetSchema(const void *buf);
}

Import

#include "flatbuffers/reflection_generated.h"

I/O Contract

Input	Output
Binary schema buffer (.bfbs)	reflection::Schema root with typed accessors for all schema elements

Usage Examples

#include "flatbuffers/reflection_generated.h"

auto schema = reflection::GetSchema(bfbs_data);
auto root = schema->root_table();
for (auto field : *root->fields()) {
    auto name = field->name()->str();
    auto type = field->type()->base_type();
}

Related Pages

• Environment:Alibaba_MNN_CPU_Build_Environment