/*
* Copyright 2014 Google Inc. All rights reserved.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
// independent from idl_parser, since this code is not needed for most clients
#include <string>
#include "flatbuffers/code_generators.h"
#include "flatbuffers/flatbuffers.h"
#include "flatbuffers/idl.h"
#include "flatbuffers/util.h"
#include <unordered_set>
namespace flatbuffers {
namespace lua {
// Hardcode spaces per indentation.
const char * Indent = " ";
const char * Comment = "-- ";
const char * End = "end\n";
const char * EndFunc = "end\n";
const char * SelfData = "self.view";
const char * SelfDataPos = "self.view.pos";
const char * SelfDataBytes = "self.view.bytes";
class LuaGenerator : public BaseGenerator {
public:
LuaGenerator(const Parser &parser, const std::string &path,
const std::string &file_name)
: BaseGenerator(parser, path, file_name, "" /* not used */,
"" /* not used */) {
static const char * const keywords[] = {
"and",
"break",
"do",
"else",
"elseif",
"end",
"false",
"for",
"function",
"goto",
"if",
"in",
"local",
"nil",
"not",
"or",
"repeat",
"return",
"then",
"true",
"until",
"while"
};
keywords_.insert(std::begin(keywords), std::end(keywords));
}
// Most field accessors need to retrieve and test the field offset first,
// this is the prefix code for that.
std::string OffsetPrefix(const FieldDef &field) {
return std::string(Indent) +
"local o = " + SelfData + ":Offset(" + NumToString(field.value.offset) + ")\n" +
Indent + "if o ~= 0 then\n";
}
// Begin a class declaration.
void BeginClass(const StructDef &struct_def, std::string *code_ptr) {
std::string &code = *code_ptr;
code += "local " + NormalizedName(struct_def) + " = {} -- the module\n";
code += "local " + NormalizedMetaName(struct_def) + " = {} -- the class metatable\n";
code += "\n";
}
// Begin enum code with a class declaration.
void BeginEnum(const std::string class_name, std::string *code_ptr) {
std::string &code = *code_ptr;
code += "local " + class_name + " = {\n";
}
std::string EscapeKeyword(const std::string &name) const {
return keywords_.find(name) == keywords_.end() ? name : "_" + name;
}
std::string NormalizedName(const Definition &definition) const {
return EscapeKeyword(definition.name);
}
std::string NormalizedName(const EnumVal &ev) const {
return EscapeKeyword(ev.name);
}
std::string NormalizedMetaName(const Definition &definition) const {
return EscapeKeyword(definition.name) + "_mt";
}
// A single enum member.
void EnumMember(const EnumVal ev, std::string *code_ptr) {
std::string &code = *code_ptr;
code += std::string(Indent) + NormalizedName(ev) + " = " + NumToString(ev.value) + ",\n";
}
// End enum code.
void EndEnum(std::string *code_ptr) {
std::string &code = *code_ptr;
code += "}\n";
}
void GenerateNewObjectPrototype(const StructDef &struct_def,
std::string *code_ptr) {
std::string &code = *code_ptr;
code += "function " + NormalizedName(struct_def) + ".New()\n";
code += std::string(Indent) + "local o = {}\n";
code += std::string(Indent) + "setmetatable(o, {__index = " + NormalizedMetaName(struct_def) + "})\n";
code += std::string(Indent) + "return o\n";
code += EndFunc;
}
// Initialize a new struct or table from existing data.
void NewRootTypeFromBuffer(const StructDef &struct_def,
std::string *code_ptr) {
std::string &code = *code_ptr;
code += "function " + NormalizedName(struct_def) + ".GetRootAs" + NormalizedName(struct_def) + "(buf, offset)\n";
code += std::string(Indent) + "local n = flatbuffers.N.UOffsetT:Unpack(buf, offset)\n";
code += std::string(Indent) + "local o = " + NormalizedName(struct_def) + ".New()\n";
code += std::string(Indent) + "o:Init(buf, n + offset)\n";
code += std::string(Indent) + "return o\n";
code += EndFunc;
}
// Initialize an existing object with other data, to avoid an allocation.
void InitializeExisting(const StructDef &struct_def,
std::string *code_ptr) {
std::string &code = *code_ptr;
GenReceiver(struct_def, code_ptr);
code += "Init(buf, pos)\n";
code += std::string(Indent) + SelfData + " = flatbuffers.view.New(buf, pos)\n";
code += EndFunc;
}
// Get the length of a vector.
void GetVectorLen(const StructDef &struct_def, const FieldDef &field,
std::string *code_ptr) {
std::string &code = *code_ptr;
GenReceiver(struct_def, code_ptr);
code += MakeCamel(NormalizedName(field)) + "Length()\n";
code += OffsetPrefix(field);
code += std::string(Indent) + Indent + "return " + SelfData + ":VectorLen(o)\n";
code += std::string(Indent) + End;
code += std::string(Indent) + "return 0\n";
code += EndFunc;
}
// Get the value of a struct's scalar.
void GetScalarFieldOfStruct(const StructDef &struct_def,
const FieldDef &field,
std::string *code_ptr) {
std::string &code = *code_ptr;
std::string getter = GenGetter(field.value.type);
GenReceiver(struct_def, code_ptr);
code += MakeCamel(NormalizedName(field));
code += "()\n";
code += std::string(Indent) + "return " + getter;
code += std::string(SelfDataPos) + " + " + NumToString(field.value.offset) + ")\n";
code += EndFunc;
}
// Get the value of a table's scalar.
void GetScalarFieldOfTable(const StructDef &struct_def,
const FieldDef &field,
std::string *code_ptr) {
std::string &code = *code_ptr;
std::string getter = GenGetter(field.value.type);
GenReceiver(struct_def, code_ptr);
code += MakeCamel(NormalizedName(field));
code += "()\n";
code += OffsetPrefix(field);
getter += std::string("o + ") + SelfDataPos + ")";
auto is_bool = field.value.type.base_type == BASE_TYPE_BOOL;
if (is_bool) {
getter = "(" + getter + " ~= 0)";
}
code += std::string(Indent) + Indent + "return " + getter + "\n";
code += std::string(Indent) + End;
std::string default_value;
if (is_bool) {
default_value = field.value.constant == "0" ? "false" : "true";
}
else {
default_value = field.value.constant;
}
code += std::string(Indent) + "return " + default_value + "\n";
code += EndFunc;
}
// Get a struct by initializing an existing struct.
// Specific to Struct.
void GetStructFieldOfStruct(const StructDef &struct_def,
const FieldDef &field,
std::string *code_ptr) {
std::string &code = *code_ptr;
GenReceiver(struct_def, code_ptr);
code += MakeCamel(NormalizedName(field));
code += "(obj)\n";
code += std::string(Indent) + "obj:Init(" + SelfDataBytes + ", " + SelfDataPos + " + ";
code += NumToString(field.value.offset) + ")\n";
code += std::string(Indent) + "return obj\n";
code += EndFunc;
}
// Get a struct by initializing an existing struct.
// Specific to Table.
void GetStructFieldOfTable(const StructDef &struct_def,
const FieldDef &field,
std::string *code_ptr) {
std::string &code = *code_ptr;
GenReceiver(struct_def, code_ptr);
code += MakeCamel(NormalizedName(field));
code += "()\n";
code += OffsetPrefix(field);
if (field.value.type.struct_def->fixed) {
code += std::string(Indent) + Indent + "local x = o + " + SelfDataPos + "\n";
}
else {
code += std::string(Indent) + Indent + "local x = " + SelfData + ":Indirect(o + " + SelfDataPos + ")\n";
}
code += std::string(Indent) + Indent + "local obj = require('" + TypeNameWithNamespace(field) + "').New()\n";
code += std::string(Indent) + Indent + "obj:Init(" + SelfDataBytes + ", x)\n";
code += std::string(Indent) + Indent + "return obj\n";
code += std::string(Indent) + End;
code += EndFunc;
}
// Get the value of a string.
void GetStringField(const StructDef &struct_def, const FieldDef &field,
std::string *code_ptr) {
std::string &code = *code_ptr;
GenReceiver(struct_def, code_ptr);
code += MakeCamel(NormalizedName(field));
code += "()\n";
code += OffsetPrefix(field);
code += std::string(Indent) + Indent + "return " + GenGetter(field.value.type);
code += std::string("o + ") + SelfDataPos + ")\n";
code += std::string(Indent) + End;
code += EndFunc;
}
// Get the value of a union from an object.
void GetUnionField(const StructDef &struct_def, const FieldDef &field,
std::string *code_ptr) {
std::string &code = *code_ptr;
GenReceiver(struct_def, code_ptr);
code += MakeCamel(NormalizedName(field)) + "()\n";
code += OffsetPrefix(field);
// TODO(rw): this works and is not the good way to it:
//bool is_native_table = TypeName(field) == "*flatbuffers.Table";
//if (is_native_table) {
// code += std::string(Indent) + Indent + "from flatbuffers.table import Table\n";
//} else {
// code += std::string(Indent) + Indent +
// code += "from ." + TypeName(field) + " import " + TypeName(field) + "\n";
//}
code += std::string(Indent) + Indent + "local obj = flatbuffers.view.New(require('flatbuffers.binaryarray').New(0), 0)\n";
code += std::string(Indent) + Indent + GenGetter(field.value.type) + "obj, o)\n";
code += std::string(Indent) + Indent + "return obj\n";
code += std::string(Indent) + End;
code += EndFunc;
}
// Get the value of a vector's struct member.
void GetMemberOfVectorOfStruct(const StructDef &struct_def,
const FieldDef &field,
std::string *code_ptr) {
std::string &code = *code_ptr;
auto vectortype = field.value.type.VectorType();
GenReceiver(struct_def, code_ptr);
code += MakeCamel(NormalizedName(field));
code += "(j)\n";
code += OffsetPrefix(field);
code += std::string(Indent) + Indent + "local x = " + SelfData + ":Vector(o)\n";
code += std::string(Indent) + Indent + "x = x + ((j-1) * ";
code += NumToString(InlineSize(vectortype)) + ")\n";
if (!(vectortype.struct_def->fixed)) {
code += std::string(Indent) + Indent + "x = " + SelfData + ":Indirect(x)\n";
}
code += std::string(Indent) + Indent + "local obj = require('" + TypeNameWithNamespace(field) + "').New()\n";
code += std::string(Indent) + Indent + "obj:Init(" + SelfDataBytes + ", x)\n";
code += std::string(Indent) + Indent + "return obj\n";
code += std::string(Indent) + End;
code += EndFunc;
}
// Get the value of a vector's non-struct member. Uses a named return
// argument to conveniently set the zero value for the result.
void GetMemberOfVectorOfNonStruct(const StructDef &struct_def,
const FieldDef &field,
std::string *code_ptr) {
std::string &code = *code_ptr;
auto vectortype = field.value.type.VectorType();
GenReceiver(struct_def, code_ptr);
code += MakeCamel(NormalizedName(field));
code += "(j)\n";
code += OffsetPrefix(field);
code += std::string(Indent) + Indent + "local a = " + SelfData + ":Vector(o)\n";
code += std::string(Indent) + Indent;
code += "return " + GenGetter(field.value.type);
code += "a + ((j-1) * ";
code += NumToString(InlineSize(vectortype)) + "))\n";
code += std::string(Indent) + End;
if (vectortype.base_type == BASE_TYPE_STRING) {
code += std::string(Indent) + "return ''\n";
}
else {
code += std::string(Indent) + "return 0\n";
}
code += EndFunc;
}
// Begin the creator function signature.
void BeginBuilderArgs(const StructDef &struct_def,
std::string *code_ptr) {
std::string &code = *code_ptr;
code += "function " + NormalizedName(struct_def) + ".Create" + NormalizedName(struct_def);
code += "(builder";
}
// Recursively generate arguments for a constructor, to deal with nested
// structs.
void StructBuilderArgs(const StructDef &struct_def,
const char *nameprefix, std::string *code_ptr) {
for (auto it = struct_def.fields.vec.begin();
it != struct_def.fields.vec.end(); ++it) {
auto &field = **it;
if (IsStruct(field.value.type)) {
// Generate arguments for a struct inside a struct. To ensure names
// don't clash, and to make it obvious these arguments are constructing
// a nested struct, prefix the name with the field name.
StructBuilderArgs(*field.value.type.struct_def,
(nameprefix + (NormalizedName(field) + "_")).c_str(), code_ptr);
}
else {
std::string &code = *code_ptr;
code += std::string(", ") + nameprefix;
code += MakeCamel(NormalizedName(field), false);
}
}
}
// End the creator function signature.
void EndBuilderArgs(std::string *code_ptr) {
std::string &code = *code_ptr;
code += ")\n";
}
// Recursively generate struct construction statements and instert manual
// padding.
void StructBuilderBody(const StructDef &struct_def,
const char *nameprefix, std::string *code_ptr) {
std::string &code = *code_ptr;
code += std::string(Indent) + "builder:Prep(" + NumToString(struct_def.minalign) + ", ";
code += NumToString(struct_def.bytesize) + ")\n";
for (auto it = struct_def.fields.vec.rbegin();
it != struct_def.fields.vec.rend(); ++it) {
auto &field = **it;
if (field.padding)
code += std::string(Indent) + "builder:Pad(" + NumToString(field.padding) + ")\n";
if (IsStruct(field.value.type)) {
StructBuilderBody(*field.value.type.struct_def,
(nameprefix + (NormalizedName(field) + "_")).c_str(), code_ptr);
}
else {
code += std::string(Indent) + "builder:Prepend" + GenMethod(field) + "(";
code += nameprefix + MakeCamel(NormalizedName(field), false) + ")\n";
}
}
}
void EndBuilderBody(std::string *code_ptr) {
std::string &code = *code_ptr;
code += std::string(Indent) + "return builder:Offset()\n";
code += EndFunc;
}
// Get the value of a table's starting offset.
void GetStartOfTable(const StructDef &struct_def,
std::string *code_ptr) {
std::string &code = *code_ptr;
code += "function " + NormalizedName(struct_def) + ".Start";
code += "(builder) ";
code += "builder:StartObject(";
code += NumToString(struct_def.fields.vec.size());
code += ") end\n";
}
// Set the value of a table's field.
void BuildFieldOfTable(const StructDef &struct_def,
const FieldDef &field, const size_t offset,
std::string *code_ptr) {
std::string &code = *code_ptr;
code += "function " + NormalizedName(struct_def) + ".Add" + MakeCamel(NormalizedName(field));
code += "(builder, ";
code += MakeCamel(NormalizedName(field), false);
code += ") ";
code += "builder:Prepend";
code += GenMethod(field) + "Slot(";
code += NumToString(offset) + ", ";
// todo: i don't need to cast in Lua, but am I missing something?
// if (!IsScalar(field.value.type.base_type) && (!struct_def.fixed)) {
// code += "flatbuffers.N.UOffsetTFlags.py_type";
// code += "(";
// code += MakeCamel(NormalizedName(field), false) + ")";
// } else {
code += MakeCamel(NormalizedName(field), false);
// }
code += ", " + field.value.constant;
code += ") end\n";
}
// Set the value of one of the members of a table's vector.
void BuildVectorOfTable(const StructDef &struct_def,
const FieldDef &field, std::string *code_ptr) {
std::string &code = *code_ptr;
code += "function " + NormalizedName(struct_def) + ".Start";
code += MakeCamel(NormalizedName(field));
code += "Vector(builder, numElems) return builder:StartVector(";
auto vector_type = field.value.type.VectorType();
auto alignment = InlineAlignment(vector_type);
auto elem_size = InlineSize(vector_type);
code += NumToString(elem_size);
code += ", numElems, " + NumToString(alignment);
code += ") end\n";
}
// Get the offset of the end of a table.
void GetEndOffsetOnTable(const StructDef &struct_def,
std::string *code_ptr) {
std::string &code = *code_ptr;
code += "function " + NormalizedName(struct_def) + ".End";
code += "(builder) ";
code += "return builder:EndObject() end\n";
}
// Generate the receiver for function signatures.
void GenReceiver(const StructDef &struct_def, std::string *code_ptr) {
std::string &code = *code_ptr;
code += "function " + NormalizedMetaName(struct_def) + ":";
}
// Generate a struct field, conditioned on its child type(s).
void GenStructAccessor(const StructDef &struct_def,
const FieldDef &field, std::string *code_ptr) {
GenComment(field.doc_comment, code_ptr, nullptr, Comment);
if (IsScalar(field.value.type.base_type)) {
if (struct_def.fixed) {
GetScalarFieldOfStruct(struct_def, field, code_ptr);
}
else {
GetScalarFieldOfTable(struct_def, field, code_ptr);
}
}
else {
switch (field.value.type.base_type) {
case BASE_TYPE_STRUCT:
if (struct_def.fixed) {
GetStructFieldOfStruct(struct_def, field, code_ptr);
}
else {
GetStructFieldOfTable(struct_def, field, code_ptr);
}
break;
case BASE_TYPE_STRING: GetStringField(struct_def, field, code_ptr); break;
case BASE_TYPE_VECTOR: {
auto vectortype = field.value.type.VectorType();
if (vectortype.base_type == BASE_TYPE_STRUCT) {
GetMemberOfVectorOfStruct(struct_def, field, code_ptr);
}
else {
GetMemberOfVectorOfNonStruct(struct_def, field, code_ptr);
}
break;
}
case BASE_TYPE_UNION: GetUnionField(struct_def, field, code_ptr); break;
default: FLATBUFFERS_ASSERT(0);
}
}
if (field.value.type.base_type == BASE_TYPE_VECTOR) {
GetVectorLen(struct_def, field, code_ptr);
}
}
// Generate table constructors, conditioned on its members' types.
void GenTableBuilders(const StructDef &struct_def,
std::string *code_ptr) {
GetStartOfTable(struct_def, code_ptr);
for (auto it = struct_def.fields.vec.begin();
it != struct_def.fields.vec.end(); ++it) {
auto &field = **it;
if (field.deprecated) continue;
auto offset = it - struct_def.fields.vec.begin();
BuildFieldOfTable(struct_def, field, offset, code_ptr);
if (field.value.type.base_type == BASE_TYPE_VECTOR) {
BuildVectorOfTable(struct_def, field, code_ptr);
}
}
GetEndOffsetOnTable(struct_def, code_ptr);
}
// Generate struct or table methods.
void GenStruct(const StructDef &struct_def, std::string *code_ptr) {
if (struct_def.generated) return;
GenComment(struct_def.doc_comment, code_ptr, nullptr, Comment);
BeginClass(struct_def, code_ptr);
GenerateNewObjectPrototype(struct_def, code_ptr);
if (!struct_def.fixed) {
// Generate a special accessor for the table that has been declared as
// the root type.
NewRootTypeFromBuffer(struct_def, code_ptr);
}
// Generate the Init method that sets the field in a pre-existing
// accessor object. This is to allow object reuse.
InitializeExisting(struct_def, code_ptr);
for (auto it = struct_def.fields.vec.begin();
it != struct_def.fields.vec.end(); ++it) {
auto &field = **it;
if (field.deprecated) continue;
GenStructAccessor(struct_def, field, code_ptr);
}
if (struct_def.fixed) {
// create a struct constructor function
GenStructBuilder(struct_def, code_ptr);
}
else {
// Create a set of functions that allow table construction.
GenTableBuilders(struct_def, code_ptr);
}
}
// Generate enum declarations.
void GenEnum(const EnumDef &enum_def, std::string *code_ptr) {
if (enum_def.generated) return;
GenComment(enum_def.doc_comment, code_ptr, nullptr, Comment);
BeginEnum(NormalizedName(enum_def), code_ptr);
for (auto it = enum_def.vals.vec.begin(); it != enum_def.vals.vec.end();
++it) {
auto &ev = **it;
GenComment(ev.doc_comment, code_ptr, nullptr, Comment);
EnumMember(ev, code_ptr);
}
EndEnum(code_ptr);
}
// Returns the function name that is able to read a value of the given type.
std::string GenGetter(const Type &type) {
switch (type.base_type) {
case BASE_TYPE_STRING: return std::string(SelfData) + ":String(";
case BASE_TYPE_UNION: return std::string(SelfData) + ":Union(";
case BASE_TYPE_VECTOR: return GenGetter(type.VectorType());
default:
return std::string(SelfData) + ":Get(flatbuffers.N." +
MakeCamel(GenTypeGet(type)) + ", ";
}
}
// Returns the method name for use with add/put calls.
std::string GenMethod(const FieldDef &field) {
return IsScalar(field.value.type.base_type)
? MakeCamel(GenTypeBasic(field.value.type))
: (IsStruct(field.value.type) ? "Struct" : "UOffsetTRelative");
}
std::string GenTypeBasic(const Type &type) {
static const char *ctypename[] = {
// clang-format off
#define FLATBUFFERS_TD(ENUM, IDLTYPE, \
CTYPE, JTYPE, GTYPE, NTYPE, PTYPE, RTYPE) \
#PTYPE,
FLATBUFFERS_GEN_TYPES(FLATBUFFERS_TD)
#undef FLATBUFFERS_TD
// clang-format on
};
return ctypename[type.base_type];
}
std::string GenTypePointer(const Type &type) {
switch (type.base_type) {
case BASE_TYPE_STRING: return "string";
case BASE_TYPE_VECTOR: return GenTypeGet(type.VectorType());
case BASE_TYPE_STRUCT: return type.struct_def->name;
case BASE_TYPE_UNION:
// fall through
default: return "*flatbuffers.Table";
}
}
std::string GenTypeGet(const Type &type) {
return IsScalar(type.base_type) ? GenTypeBasic(type) : GenTypePointer(type);
}
std::string GetNamespace(const Type &type) {
return type.struct_def->defined_namespace->GetFullyQualifiedName(type.struct_def->name);
}
std::string TypeName(const FieldDef &field) {
return GenTypeGet(field.value.type);
}
std::string TypeNameWithNamespace(const FieldDef &field) {
return GetNamespace(field.value.type);
}
// Create a struct with a builder and the struct's arguments.
void GenStructBuilder(const StructDef &struct_def,
std::string *code_ptr) {
BeginBuilderArgs(struct_def, code_ptr);
StructBuilderArgs(struct_def, "", code_ptr);
EndBuilderArgs(code_ptr);
StructBuilderBody(struct_def, "", code_ptr);
EndBuilderBody(code_ptr);
}
bool generate() {
if (!generateEnums()) return false;
if (!generateStructs()) return false;
return true;
}
private:
bool generateEnums() {
for (auto it = parser_.enums_.vec.begin(); it != parser_.enums_.vec.end();
++it) {
auto &enum_def = **it;
std::string enumcode;
GenEnum(enum_def, &enumcode);
if (!SaveType(enum_def, enumcode, false)) return false;
}
return true;
}
bool generateStructs() {
for (auto it = parser_.structs_.vec.begin();
it != parser_.structs_.vec.end(); ++it) {
auto &struct_def = **it;
std::string declcode;
GenStruct(struct_def, &declcode);
if (!SaveType(struct_def, declcode, true)) return false;
}
return true;
}
// Begin by declaring namespace and imports.
void BeginFile(const std::string name_space_name, const bool needs_imports,
std::string *code_ptr) {
std::string &code = *code_ptr;
code += std::string(Comment) + FlatBuffersGeneratedWarning() + "\n\n";
code += std::string(Comment) + "namespace: " + name_space_name + "\n\n";
if (needs_imports) {
code += "local flatbuffers = require('flatbuffers')\n\n";
}
}
// Save out the generated code for a Lua Table type.
bool SaveType(const Definition &def, const std::string &classcode,
bool needs_imports) {
if (!classcode.length()) return true;
std::string namespace_dir = path_;
auto &namespaces = def.defined_namespace->components;
for (auto it = namespaces.begin(); it != namespaces.end(); ++it) {
if (it != namespaces.begin()) namespace_dir += kPathSeparator;
namespace_dir += *it;
//std::string init_py_filename = namespace_dir + "/__init__.py";
//SaveFile(init_py_filename.c_str(), "", false);
}
std::string code = "";
BeginFile(LastNamespacePart(*def.defined_namespace), needs_imports, &code);
code += classcode;
code += "\n";
code += "return " + NormalizedName(def) + " " + Comment + "return the module";
std::string filename =
NamespaceDir(*def.defined_namespace) + NormalizedName(def) + ".lua";
return SaveFile(filename.c_str(), code, false);
}
private:
std::unordered_set<std::string> keywords_;
};
} // namespace lua
bool GenerateLua(const Parser &parser, const std::string &path,
const std::string &file_name) {
lua::LuaGenerator generator(parser, path, file_name);
return generator.generate();
}
} // namespace flatbuffers