Protocol Buffers - Google's data interchange format (grpc依赖)
https://developers.google.com/protocol-buffers/
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58 lines
2.3 KiB
58 lines
2.3 KiB
--[[-------------------------------------------------------------------------- |
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Copyright (c) 2009-2021, Google LLC |
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All rights reserved. |
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Redistribution and use in source and binary forms, with or without |
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modification, are permitted provided that the following conditions are met: |
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* Redistributions of source code must retain the above copyright |
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notice, this list of conditions and the following disclaimer. |
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* Redistributions in binary form must reproduce the above copyright |
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notice, this list of conditions and the following disclaimer in the |
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documentation and/or other materials provided with the distribution. |
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* Neither the name of Google LLC nor the |
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names of its contributors may be used to endorse or promote products |
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derived from this software without specific prior written permission. |
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND |
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ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED |
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WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE |
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DISCLAIMED. IN NO EVENT SHALL Google LLC BE LIABLE FOR ANY |
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DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES |
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(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; |
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LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND |
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ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
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(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS |
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SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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--]]-------------------------------------------------------------------------- |
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local upb = require("lupb") |
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upb.generated_pool = upb.DefPool() |
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local module_metatable = { |
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__index = function(t, k) |
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local package = t._filedef:package() |
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if package then |
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k = package .. "." .. k |
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end |
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local pool = upb.generated_pool |
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local def = pool:lookup_msg(k) or pool:lookup_enum(k) |
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local v = nil |
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if def and def:file():name() == t._filedef:name() then |
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v = def |
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t[k] = v |
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end |
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return v |
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end |
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} |
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function upb._generated_module(desc_string) |
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local file = upb.generated_pool:add_file(desc_string) |
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local module = {_filedef = file} |
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setmetatable(module, module_metatable) |
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return module |
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end |
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return upb
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