protobuf/lua/upb.lua

41 lines
1.1 KiB
Lua

--[[--------------------------------------------------------------------------
Protocol Buffers - Google's data interchange format
Copyright 2023 Google LLC. All rights reserved.
Use of this source code is governed by a BSD-style
license that can be found in the LICENSE file or at
https://developers.google.com/open-source/licenses/bsd
--]]--------------------------------------------------------------------------
local upb = require("lupb")
upb.generated_pool = upb.DefPool()
local module_metatable = {
__index = function(t, k)
local package = t._filedef:package()
if package then
k = package .. "." .. k
end
local pool = upb.generated_pool
local def = pool:lookup_msg(k) or pool:lookup_enum(k)
local v = nil
if def and def:file():name() == t._filedef:name() then
v = def
t[k] = v
end
return v
end
}
function upb._generated_module(desc_string)
local file = upb.generated_pool:add_file(desc_string)
local module = {_filedef = file}
setmetatable(module, module_metatable)
return module
end
return upb