Protocol Buffers - Google's data interchange format (grpc依赖)
https://developers.google.com/protocol-buffers/
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112 lines
3.9 KiB
112 lines
3.9 KiB
// Protocol Buffers - Google's data interchange format |
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// Copyright 2023 Google LLC. All rights reserved. |
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// |
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// Use of this source code is governed by a BSD-style |
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// license that can be found in the LICENSE file or at |
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// https://developers.google.com/open-source/licenses/bsd |
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/* |
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* Shared definitions for upb Lua modules. |
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*/ |
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#ifndef UPB_LUA_UPB_H_ |
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#define UPB_LUA_UPB_H_ |
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#include "lauxlib.h" |
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#include "upb/message/message.h" |
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#include "upb/reflection/def.h" |
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#include "upb/reflection/message.h" |
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/* Lua changes its API in incompatible ways in every minor release. |
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* This is some shim code to paper over the differences. */ |
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#if LUA_VERSION_NUM == 501 |
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#define lua_rawlen lua_objlen |
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#define lua_setuservalue(L, idx) lua_setfenv(L, idx) |
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#define lua_getuservalue(L, idx) lua_getfenv(L, idx) |
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#define lupb_setfuncs(L, l) luaL_register(L, NULL, l) |
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#elif LUA_VERSION_NUM >= 502 && LUA_VERSION_NUM <= 504 |
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#define lupb_setfuncs(L, l) luaL_setfuncs(L, l, 0) |
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#else |
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#error Only Lua 5.1-5.4 are supported |
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#endif |
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/* Create a new userdata with the given type and |n| uservals, which are popped |
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* from the stack to initialize the userdata. */ |
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void* lupb_newuserdata(lua_State* L, size_t size, int n, const char* type); |
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#if LUA_VERSION_NUM < 504 |
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/* Polyfills for this Lua 5.4 function. Pushes userval |n| for the userdata at |
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* |index|. */ |
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int lua_setiuservalue(lua_State* L, int index, int n); |
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int lua_getiuservalue(lua_State* L, int index, int n); |
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#endif |
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/* Registers a type with the given name, methods, and metamethods. */ |
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void lupb_register_type(lua_State* L, const char* name, const luaL_Reg* m, |
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const luaL_Reg* mm); |
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/* Checks the given upb_Status and throws a Lua error if it is not ok. */ |
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void lupb_checkstatus(lua_State* L, upb_Status* s); |
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int luaopen_lupb(lua_State* L); |
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/* C <-> Lua value conversions. ***********************************************/ |
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/* Custom check/push functions. Unlike the Lua equivalents, they are pinned to |
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* specific C types (instead of lua_Number, etc), and do not allow any implicit |
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* conversion or data loss. */ |
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int64_t lupb_checkint64(lua_State* L, int narg); |
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int32_t lupb_checkint32(lua_State* L, int narg); |
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uint64_t lupb_checkuint64(lua_State* L, int narg); |
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uint32_t lupb_checkuint32(lua_State* L, int narg); |
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double lupb_checkdouble(lua_State* L, int narg); |
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float lupb_checkfloat(lua_State* L, int narg); |
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bool lupb_checkbool(lua_State* L, int narg); |
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const char* lupb_checkstring(lua_State* L, int narg, size_t* len); |
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const char* lupb_checkname(lua_State* L, int narg); |
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void lupb_pushint64(lua_State* L, int64_t val); |
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void lupb_pushint32(lua_State* L, int32_t val); |
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void lupb_pushuint64(lua_State* L, uint64_t val); |
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void lupb_pushuint32(lua_State* L, uint32_t val); |
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/** From def.c. ***************************************************************/ |
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const upb_MessageDef* lupb_MessageDef_check(lua_State* L, int narg); |
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const upb_EnumDef* lupb_EnumDef_check(lua_State* L, int narg); |
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const upb_FieldDef* lupb_FieldDef_check(lua_State* L, int narg); |
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upb_DefPool* lupb_DefPool_check(lua_State* L, int narg); |
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void lupb_MessageDef_pushsubmsgdef(lua_State* L, const upb_FieldDef* f); |
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void lupb_def_registertypes(lua_State* L); |
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/** From msg.c. ***************************************************************/ |
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void lupb_pushmsgval(lua_State* L, int container, upb_CType type, |
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upb_MessageValue val); |
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int lupb_MessageDef_call(lua_State* L); |
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upb_Arena* lupb_Arena_pushnew(lua_State* L); |
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void lupb_msg_registertypes(lua_State* L); |
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#define lupb_assert(L, predicate) \ |
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if (!(predicate)) \ |
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luaL_error(L, "internal error: %s, %s:%d ", #predicate, __FILE__, __LINE__); |
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#define LUPB_UNUSED(var) (void)var |
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#if defined(__GNUC__) || defined(__clang__) |
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#define LUPB_UNREACHABLE() \ |
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do { \ |
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assert(0); \ |
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__builtin_unreachable(); \ |
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} while (0) |
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#else |
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#define LUPB_UNREACHABLE() \ |
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do { \ |
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assert(0); \ |
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} while (0) |
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#endif |
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#endif /* UPB_LUA_UPB_H_ */
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