Implementation:Alibaba MNN FlatBuffers IDL Gen Lua

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

Overview

Lua code generator backend that produces FlatBuffers accessor modules for the Lua scripting language.

Description

idl_gen_lua.cpp implements the Lua code generation backend for flatc. It generates Lua modules containing table-based accessor objects that read FlatBuffer binary data through string byte operations. The generated code follows Lua module conventions and depends on the FlatBuffers Lua runtime library for buffer manipulation and builder functionality.

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/src/idl_gen_lua.cpp
• Lines: 1-729

Signature

namespace flatbuffers {
  bool GenerateLua(const Parser &parser,
                   const std::string &path,
                   const std::string &file_name);
}

Import

#include "flatbuffers/idl.h"
// Generator invoked internally by flatc

I/O Contract

Input	Output
Parsed Parser object with schema definitions	*.lua Lua module files (one per namespace)

Usage Examples

// Invoked by flatc:
// flatc --lua schema.fbs

// Internally:
flatbuffers::Parser parser;
parser.Parse(schema);
flatbuffers::GenerateLua(parser, output_path, file_name);

Related Pages

• Environment:Alibaba_MNN_CPU_Build_Environment