From 901f1bfdbadc7afa5526ca854a12bdfe8fcb88b3 Mon Sep 17 00:00:00 2001 From: Philipp Janda Date: Tue, 13 Jan 2015 08:27:20 +0100 Subject: add initial implementation of c-api and license --- c-api/compat-5.3.c | 430 +++++++++++++++++++++++++++++++++++++++++++++++++++++ c-api/compat-5.3.h | 294 ++++++++++++++++++++++++++++++++++++ 2 files changed, 724 insertions(+) create mode 100644 c-api/compat-5.3.c create mode 100644 c-api/compat-5.3.h (limited to 'c-api') diff --git a/c-api/compat-5.3.c b/c-api/compat-5.3.c new file mode 100644 index 0000000..9edd5f1 --- /dev/null +++ b/c-api/compat-5.3.c @@ -0,0 +1,430 @@ +#include +#include +#include +#include +#include +#include +#include +#include "compat-5.3.h" + +/* don't compile it again if it already is included via compat53.h */ +#ifndef COMPAT53_C_ +#define COMPAT53_C_ + + + +/* definitions for Lua 5.1 only */ +#if defined( LUA_VERSION_NUM ) && LUA_VERSION_NUM == 501 + + +COMPAT53_API int lua_absindex (lua_State *L, int i) { + if (i < 0 && i > LUA_REGISTRYINDEX) + i += lua_gettop(L) + 1; + return i; +} + + +COMPAT53_API void lua_copy (lua_State *L, int from, int to) { + int abs_to = lua_absindex(L, to); + luaL_checkstack(L, 1, "not enough stack slots"); + lua_pushvalue(L, from); + lua_replace(L, abs_to); +} + + +COMPAT53_API void lua_len (lua_State *L, int i) { + switch (lua_type(L, i)) { + case LUA_TSTRING: /* fall through */ + case LUA_TTABLE: + lua_pushnumber(L, (int)lua_objlen(L, i)); + break; + case LUA_TUSERDATA: + if (luaL_callmeta(L, i, "__len")) + break; + /* maybe fall through */ + default: + luaL_error(L, "attempt to get length of a %s value", + lua_typename(L, lua_type(L, i))); + } +} + + +COMPAT53_API int lua_rawgetp (lua_State *L, int i, const void *p) { + int abs_i = lua_absindex(L, i); + lua_pushlightuserdata(L, (void*)p); + lua_rawget(L, abs_i); + return lua_type(L, -1); +} + +COMPAT53_API void lua_rawsetp (lua_State *L, int i, const void *p) { + int abs_i = lua_absindex(L, i); + luaL_checkstack(L, 1, "not enough stack slots"); + lua_pushlightuserdata(L, (void*)p); + lua_insert(L, -2); + lua_rawset(L, abs_i); +} + + +COMPAT53_API lua_Integer lua_tointegerx (lua_State *L, int i, int *isnum) { + lua_Integer n = lua_tointeger(L, i); + if (isnum != NULL) { + *isnum = (n != 0 || lua_isnumber(L, i)); +} + return n; +} + + +COMPAT53_API lua_Number lua_tonumberx (lua_State *L, int i, int *isnum) { + lua_Number n = lua_tonumber(L, i); + if (isnum != NULL) { + *isnum = (n != 0 || lua_isnumber(L, i)); + } + return n; +} + + +COMPAT53_API void luaL_checkversion (lua_State *L) { + (void)L; +} + + +COMPAT53_API int luaL_getsubtable (lua_State *L, int i, const char *name) { + int abs_i = lua_absindex(L, i); + luaL_checkstack(L, 3, "not enough stack slots"); + lua_pushstring(L, name); + lua_gettable(L, abs_i); + if (lua_istable(L, -1)) + return 1; + lua_pop(L, 1); + lua_newtable(L); + lua_pushstring(L, name); + lua_pushvalue(L, -2); + lua_settable(L, abs_i); + return 0; +} + + +COMPAT53_API int luaL_len (lua_State *L, int i) { + int res = 0, isnum = 0; + luaL_checkstack(L, 1, "not enough stack slots"); + lua_len(L, i); + res = (int)lua_tointegerx(L, -1, &isnum); + lua_pop(L, 1); + if (!isnum) + luaL_error(L, "object length is not a number"); + return res; +} + + +COMPAT53_API void luaL_setfuncs (lua_State *L, const luaL_Reg *l, int nup) { + luaL_checkstack(L, nup+1, "too many upvalues"); + for (; l->name != NULL; l++) { /* fill the table with given functions */ + int i; + lua_pushstring(L, l->name); + for (i = 0; i < nup; i++) /* copy upvalues to the top */ + lua_pushvalue(L, -(nup + 1)); + lua_pushcclosure(L, l->func, nup); /* closure with those upvalues */ + lua_settable(L, -(nup + 3)); /* table must be below the upvalues, the name and the closure */ + } + lua_pop(L, nup); /* remove upvalues */ +} + + +COMPAT53_API void luaL_setmetatable (lua_State *L, const char *tname) { + luaL_checkstack(L, 1, "not enough stack slots"); + luaL_getmetatable(L, tname); + lua_setmetatable(L, -2); +} + + +COMPAT53_API void *luaL_testudata (lua_State *L, int i, const char *tname) { + void *p = lua_touserdata(L, i); + luaL_checkstack(L, 2, "not enough stack slots"); + if (p == NULL || !lua_getmetatable(L, i)) + return NULL; + else { + int res = 0; + luaL_getmetatable(L, tname); + res = lua_rawequal(L, -1, -2); + lua_pop(L, 2); + if (!res) + p = NULL; + } + return p; +} + + +COMPAT53_API const char *luaL_tolstring (lua_State *L, int idx, size_t *len) { + if (!luaL_callmeta(L, idx, "__tostring")) { + int t = lua_type(L, idx); + switch (t) { + case LUA_TNIL: + lua_pushliteral(L, "nil"); + break; + case LUA_TSTRING: + case LUA_TNUMBER: + lua_pushvalue(L, idx); + break; + case LUA_TBOOLEAN: + if (lua_toboolean(L, idx)) + lua_pushliteral(L, "true"); + else + lua_pushliteral(L, "false"); + break; + default: + lua_pushfstring(L, "%s: %p", lua_typename(L, t), + lua_topointer(L, idx)); + break; + } + } + return lua_tolstring(L, -1, len); +} + + +#if !defined(COMPAT53_IS_LUAJIT) +static int compat53_countlevels (lua_State *L) { + lua_Debug ar; + int li = 1, le = 1; + /* find an upper bound */ + while (lua_getstack(L, le, &ar)) { li = le; le *= 2; } + /* do a binary search */ + while (li < le) { + int m = (li + le)/2; + if (lua_getstack(L, m, &ar)) li = m + 1; + else le = m; + } + return le - 1; +} + +static int compat53_findfield (lua_State *L, int objidx, int level) { + if (level == 0 || !lua_istable(L, -1)) + return 0; /* not found */ + lua_pushnil(L); /* start 'next' loop */ + while (lua_next(L, -2)) { /* for each pair in table */ + if (lua_type(L, -2) == LUA_TSTRING) { /* ignore non-string keys */ + if (lua_rawequal(L, objidx, -1)) { /* found object? */ + lua_pop(L, 1); /* remove value (but keep name) */ + return 1; + } + else if (compat53_findfield(L, objidx, level - 1)) { /* try recursively */ + lua_remove(L, -2); /* remove table (but keep name) */ + lua_pushliteral(L, "."); + lua_insert(L, -2); /* place '.' between the two names */ + lua_concat(L, 3); + return 1; + } + } + lua_pop(L, 1); /* remove value */ + } + return 0; /* not found */ +} + +static int compat53_pushglobalfuncname (lua_State *L, lua_Debug *ar) { + int top = lua_gettop(L); + lua_getinfo(L, "f", ar); /* push function */ + lua_pushvalue(L, LUA_GLOBALSINDEX); + if (compat53_findfield(L, top + 1, 2)) { + lua_copy(L, -1, top + 1); /* move name to proper place */ + lua_pop(L, 2); /* remove pushed values */ + return 1; + } + else { + lua_settop(L, top); /* remove function and global table */ + return 0; + } +} + +static void compat53_pushfuncname (lua_State *L, lua_Debug *ar) { + if (*ar->namewhat != '\0') /* is there a name? */ + lua_pushfstring(L, "function " LUA_QS, ar->name); + else if (*ar->what == 'm') /* main? */ + lua_pushliteral(L, "main chunk"); + else if (*ar->what == 'C') { + if (compat53_pushglobalfuncname(L, ar)) { + lua_pushfstring(L, "function " LUA_QS, lua_tostring(L, -1)); + lua_remove(L, -2); /* remove name */ + } + else + lua_pushliteral(L, "?"); + } + else + lua_pushfstring(L, "function <%s:%d>", ar->short_src, ar->linedefined); +} + +#define COMPAT53_LEVELS1 12 /* size of the first part of the stack */ +#define COMPAT53_LEVELS2 10 /* size of the second part of the stack */ + +COMPAT53_API void luaL_traceback (lua_State *L, lua_State *L1, + const char *msg, int level) { + lua_Debug ar; + int top = lua_gettop(L); + int numlevels = compat53_countlevels(L1); + int mark = (numlevels > COMPAT53_LEVELS1 + COMPAT53_LEVELS2) ? COMPAT53_LEVELS1 : 0; + if (msg) lua_pushfstring(L, "%s\n", msg); + lua_pushliteral(L, "stack traceback:"); + while (lua_getstack(L1, level++, &ar)) { + if (level == mark) { /* too many levels? */ + lua_pushliteral(L, "\n\t..."); /* add a '...' */ + level = numlevels - COMPAT53_LEVELS2; /* and skip to last ones */ + } + else { + lua_getinfo(L1, "Slnt", &ar); + lua_pushfstring(L, "\n\t%s:", ar.short_src); + if (ar.currentline > 0) + lua_pushfstring(L, "%d:", ar.currentline); + lua_pushliteral(L, " in "); + compat53_pushfuncname(L, &ar); + lua_concat(L, lua_gettop(L) - top); + } + } + lua_concat(L, lua_gettop(L) - top); +} + + +COMPAT53_API int luaL_fileresult (lua_State *L, int stat, const char *fname) { + int en = errno; /* calls to Lua API may change this value */ + if (stat) { + lua_pushboolean(L, 1); + return 1; + } + else { + lua_pushnil(L); + if (fname) + lua_pushfstring(L, "%s: %s", fname, strerror(en)); + else + lua_pushstring(L, strerror(en)); + lua_pushnumber(L, (lua_Number)en); + return 3; + } +} +#endif /* not COMPAT53_IS_LUAJIT */ + + +#endif /* Lua 5.1 */ + + + +/* definitions for Lua 5.1 and Lua 5.2 */ +#if defined( LUA_VERSION_NUM ) && LUA_VERSION_NUM <= 502 + + +COMPAT53_API int lua_geti (lua_State *L, int index, lua_Integer i) { + index = lua_absindex(L, index); + lua_pushinteger(L, i); + lua_gettable(L, index); + return lua_type(L, -1); +} + + +COMPAT53_API int lua_isinteger (lua_State *L, int index) { + if (lua_type(L, index) == LUA_TNUMBER) { + lua_Number n = lua_tonumber(L, index); + lua_Integer i = lua_tointeger(L, index); + if (i == n) + return 1; + } + return 0; +} + + +static void compat53_reverse (lua_State *L, int a, int b) { + for (; a < b; ++a, --b) { + lua_pushvalue(L, a); + lua_pushvalue(L, b); + lua_replace(L, a); + lua_replace(L, b); + } +} + + +COMPAT53_API void lua_rotate (lua_State *L, int idx, int n) { + int n_elems = 0; + idx = lua_absindex(L, idx); + n_elems = lua_gettop(L)-idx+1; + if (n < 0) + n += n_elems; + if ( n > 0 && n < n_elems) { + luaL_checkstack(L, 2, "not enough stack slots available"); + n = n_elems - n; + compat53_reverse(L, idx, idx+n-1); + compat53_reverse(L, idx+n, idx+n_elems-1); + compat53_reverse(L, idx, idx+n_elems-1); + } +} + + +COMPAT53_API void lua_seti (lua_State *L, int index, lua_Integer i) { + luaL_checkstack(L, 1, "not enough stack slots available"); + index = lua_absindex(L, index); + lua_pushinteger(L, i); + lua_insert(L, -2); + lua_settable(L, index); +} + + +COMPAT53_API size_t lua_stringtonumber (lua_State *L, const char *s) { + char* endptr; + lua_Number n = lua_str2number(s, &endptr); + if (endptr != s) { + while (*endptr != '\0' && isspace((unsigned char)*endptr)) + ++endptr; + if (*endptr == '\0') { + lua_pushnumber(L, n); + return endptr - s + 1; + } + } + return 0; +} + + +COMPAT53_API void luaL_requiref (lua_State *L, const char *modname, + lua_CFunction openf, int glb) { + luaL_checkstack(L, 3, "not enough stack slots available"); + lua_getfield(L, LUA_REGISTRYINDEX, "_LOADED"); + if (lua_getfield(L, -1, modname) == LUA_TNIL) { + lua_pop(L, 1); + lua_pushcfunction(L, openf); + lua_pushstring(L, modname); + lua_call(L, 1, 1); + lua_pushvalue(L, -1); + lua_setfield(L, -3, modname); + } + if (glb) { + lua_pushvalue(L, -1); + lua_setglobal(L, modname); + } + lua_replace(L, -2); +} + + +#endif /* Lua 5.1 and 5.2 */ + + +#endif /* COMPAT53_C_ */ + + +/********************************************************************* +* This file contains parts of Lua 5.2's and Lua 5.3's source code: +* +* Copyright (C) 1994-2014 Lua.org, PUC-Rio. +* +* Permission is hereby granted, free of charge, to any person obtaining +* a copy of this software and associated documentation files (the +* "Software"), to deal in the Software without restriction, including +* without limitation the rights to use, copy, modify, merge, publish, +* distribute, sublicense, and/or sell copies of the Software, and to +* permit persons to whom the Software is furnished to do so, subject to +* the following conditions: +* +* The above copyright notice and this permission notice shall be +* included in all copies or substantial portions of the Software. +* +* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, +* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF +* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. +* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY +* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, +* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE +* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. +*********************************************************************/ + diff --git a/c-api/compat-5.3.h b/c-api/compat-5.3.h new file mode 100644 index 0000000..b288126 --- /dev/null +++ b/c-api/compat-5.3.h @@ -0,0 +1,294 @@ +#ifndef COMPAT53_H_ +#define COMPAT53_H_ + +#include +#include +#include +#include +#include + + +#if defined(COMPAT53_PREFIX) +/* - change the symbol names of functions to avoid linker conflicts + * - compat-5.3.c needs to be compiled (and linked) separately + */ +# if !defined(COMPAT53_API) +# define COMPAT53_API extern +# endif +# undef COMPAT53_INCLUDE_SOURCE +#else /* COMPAT53_PREFIX */ +/* - make all functions static and include the source. + * - don't mess with the symbol names of functions + * - compat-5.3.c doesn't need to be compiled (and linked) separately + */ +# define COMPAT53_PREFIX lua +# undef COMPAT53_API +# if defined(__GNUC__) || defined(__clang__) +# define COMPAT53_API __attribute__((__unused__)) static +# else +# define COMPAT53_API static +# endif +# define COMPAT53_INCLUDE_SOURCE +#endif /* COMPAT53_PREFIX */ + +#define COMPAT53_CONCAT_HELPER(a, b) a##b +#define COMPAT53_CONCAT(a, b) COMPAT53_CONCAT_HELPER(a, b) + + + +/* declarations for Lua 5.1 */ +#if defined(LUA_VERSION_NUM) && LUA_VERSION_NUM == 501 + +/* XXX not implemented: + * lua_arith + * lua_compare + * lua_upvalueid + * lua_upvaluejoin + * lua_version + * lua_yieldk + * luaL_buffinitsize + * luaL_execresult + * luaL_loadbufferx + * luaL_loadfilex + * luaL_prepbuffsize + * luaL_pushresultsize + */ + +/* PUC-Rio Lua uses lconfig_h as include guard for luaconf.h, + * LuaJIT uses luaconf_h. If you use PUC-Rio's include files + * but LuaJIT's library, you will need to define the macro + * COMPAT53_IS_LUAJIT yourself! */ +#if !defined(COMPAT53_IS_LUAJIT) && defined(luaconf_h) +# define COMPAT53_IS_LUAJIT +#endif + +#define LUA_OK 0 + +typedef struct luaL_Stream { + FILE *f; + lua_CFunction closef; +} luaL_Stream; + +typedef size_t lua_Unsigned; + +#define lua_absindex COMPAT53_CONCAT(COMPAT53_PREFIX, _absindex) +COMPAT53_API int lua_absindex (lua_State *L, int i); + +#define lua_copy COMPAT53_CONCAT(COMPAT53_PREFIX, _copy) +COMPAT53_API void lua_copy (lua_State *L, int from, int to); + +#define lua_getuservalue(L, i) \ + (lua_getfenv(L, i), lua_type(L, -1)) +#define lua_setuservalue(L, i) \ + (luaL_checktype(L, -1, LUA_TTABLE), lua_setfenv(L, i)) + +#define lua_len COMPAT53_CONCAT(COMPAT53_PREFIX, _len) +COMPAT53_API void lua_len (lua_State *L, int i); + +#define luaL_newlibtable(L, l) \ + (lua_createtable(L, 0, sizeof(l)/sizeof(*(l))-1)) +#define luaL_newlib(L, l) \ + (luaL_newlibtable(L, l), luaL_register(L, NULL, l)) + +#define lua_pushglobaltable(L) \ + lua_pushvalue(L, LUA_GLOBALSINDEX) + +#define lua_rawgetp COMPAT53_CONCAT(COMPAT53_PREFIX, _rawgetp) +COMPAT53_API int lua_rawgetp (lua_State *L, int i, const void *p); + +#define lua_rawsetp COMPAT53_CONCAT(COMPAT53_PREFIX, _rawsetp) +COMPAT53_API void lua_rawsetp(lua_State *L, int i, const void *p); + +#define lua_rawlen(L, i) lua_objlen(L, i) + +#define lua_tointegerx COMPAT53_CONCAT(COMPAT53_PREFIX, _tointegerx) +COMPAT53_API lua_Integer lua_tointegerx (lua_State *L, int i, int *isnum); + +#define lua_tonumberx COMPAT53_CONCAT(COMPAT53_PREFIX, _tonumberx) +COMPAT53_API lua_Number lua_tonumberx (lua_State *L, int i, int *isnum); + +#define luaL_checkversion COMPAT53_CONCAT(COMPAT53_PREFIX, L_checkversion) +COMPAT53_API void luaL_checkversion (lua_State *L); + +#define luaL_getsubtable COMPAT53_CONCAT(COMPAT53_PREFIX, L_getsubtable) +COMPAT53_API int luaL_getsubtable (lua_State* L, int i, const char *name); + +#define luaL_len COMPAT53_CONCAT(COMPAT53_PREFIX, L_len) +COMPAT53_API int luaL_len (lua_State *L, int i); + +#define luaL_setfuncs COMPAT53_CONCAT(COMPAT53_PREFIX, L_setfuncs) +COMPAT53_API void luaL_setfuncs (lua_State *L, const luaL_Reg *l, int nup); + +#define luaL_setmetatable COMPAT53_CONCAT(COMPAT53_PREFIX, L_setmetatable) +COMPAT53_API void luaL_setmetatable (lua_State *L, const char *tname); + +#define luaL_testudata COMPAT53_CONCAT(COMPAT53_PREFIX, L_testudata) +COMPAT53_API void *luaL_testudata (lua_State *L, int i, const char *tname); + +#define luaL_tolstring COMPAT53_CONCAT(COMPAT53_PREFIX, L_tolstring) +COMPAT53_API const char *luaL_tolstring (lua_State *L, int idx, size_t *len); + +#if !defined(COMPAT53_IS_LUAJIT) +#define luaL_traceback COMPAT53_CONCAT(COMPAT53_PREFIX, L_traceback) +COMPAT53_API void luaL_traceback (lua_State *L, lua_State *L1, const char *msg, int level); + +#define luaL_fileresult COMPAT53_CONCAT(COMPAT53_PREFIX, L_fileresult) +COMPAT53_API int luaL_fileresult (lua_State *L, int stat, const char *fname); +#endif /* COMPAT53_IS_LUAJIT */ + +#define lua_callk(L, na, nr, ctx, cont) \ + ((void)(ctx), (void)(cont), lua_call(L, na, nr)) +#define lua_pcallk(L, na, nr, err, ctx, cont) \ + ((void)(ctx), (void)(cont), lua_pcall(L, na, nr, err)) + +#if defined(LUA_COMPAT_APIINTCASTS) +#define lua_pushunsigned(L, n) \ + lua_pushinteger(L, (lua_Integer)(n)) +#define lua_tounsignedx(L, i, is) \ + ((lua_Unsigned)lua_tointegerx(L, i, is)) +#define lua_tounsigned(L, i) \ + lua_tounsignedx(L, i, NULL) +#define luaL_checkunsigned(L, a) \ + ((lua_Unsigned)luaL_checkinteger(L, a)) +#define luaL_optunsigned(L, a, d) \ + ((lua_Unsigned)luaL_optinteger(L, a, (lua_Integer)(d))) +#endif + +#endif /* Lua 5.1 only */ + + + +/* declarations for Lua 5.1 and 5.2 */ +#if defined(LUA_VERSION_NUM) && LUA_VERSION_NUM <= 502 + +typedef int lua_KContext; + +typedef int (*lua_KFunction)(lua_State *L, int status, lua_KContext ctx); + +#define lua_dump(L, w, d, s) \ + ((void)(s), lua_dump(L, w, d)) + +#define lua_getfield(L, i, k) \ + (lua_getfield(L, i, k), lua_type(L, -1)) + +#define lua_gettable(L, i) \ + (lua_gettable(L, i), lua_type(L, -1)) + +#define lua_geti COMPAT53_CONCAT(COMPAT53_PREFIX, _geti) +COMPAT53_API int lua_geti (lua_State *L, int index, lua_Integer i); + +#define lua_isinteger COMPAT53_CONCAT(COMPAT53_PREFIX, _isinteger) +COMPAT53_API int lua_isinteger (lua_State *L, int index); + +#define lua_numbertointeger(n, p) \ + ((*(p) = (lua_Integer)(n)), 1) + +#define lua_rawget(L, i) \ + (lua_rawget(L, i), lua_type(L, -1)) + +#define lua_rawgeti(L, i, n) \ + (lua_rawgeti(L, i, n), lua_type(L, -1)) + +#define lua_rotate COMPAT53_CONCAT(COMPAT53_PREFIX, _rotate) +COMPAT53_API void lua_rotate (lua_State *L, int idx, int n); + +#define lua_seti COMPAT53_CONCAT(COMPAT53_PREFIX, _seti) +COMPAT53_API void lua_seti (lua_State *L, int index, lua_Integer i); + +#define lua_strtonum COMPAT53_CONCAT(COMPAT53_PREFIX, _stringtonumber) +COMPAT53_API size_t lua_stringtonumber (lua_State *L, const char *s); + +#define luaL_getmetafield(L, o, e) \ + (luaL_getmetafield(L, o, e) ? lua_type(L, -1) : LUA_TNIL) + +#define luaL_requiref COMPAT53_CONCAT(COMPAT53_PREFIX, L_requiref_) +COMPAT53_API void luaL_requiref (lua_State *L, const char *modname, + lua_CFunction openf, int glb ); + +#endif /* Lua 5.1 and Lua 5.2 */ + + + +/* declarations for Lua 5.2 */ +#if defined(LUA_VERSION_NUM) && LUA_VERSION_NUM == 502 + +/* XXX not implemented: + * lua_isyieldable + * lua_getextraspace + * lua_arith (new operators) + * lua_pushfstring (new formats) + */ + +#define lua_getglobal(L, n) \ + (lua_getglobal(L, n), lua_type(L, -1)) + +#define lua_getuservalue(L, i) \ + (lua_getuservalue(L, i), lua_type(L, -1)) + +#define lua_rawgetp(L, i, p) \ + (lua_rawgetp(L, i, p), lua_type(L, -1)) + +#define LUA_KFUNCTION(_name) \ + static int (_name)(lua_State *L, int status, lua_KContext ctx); \ + static int (_name ## _52)(lua_State *L) { \ + luaK_Context ctx; \ + int status = lua_getctx(L, &ctx); \ + return (_name)(L, status, ctx); \ + } \ + static int (_name)(lua_State *L, int status, lua_KContext ctx) + +#define lua_pcallk(L, na, nr, err, ctx, cont) \ + lua_pcallk(L, na, nr, err, ctx, cont ## _52) + +#define lua_callk(L, na, nr, ctx, cont) \ + lua_callk(L, na, nr, ctx, cont ## _52) + +#define lua_yieldk(L, nr, ctx, cont) \ + lua_yieldk(L, nr, ctx, cont ## _52) + +#ifdef lua_call +# undef lua_call +# define lua_call(L, na, nr) \ + (lua_callk)(L, na, nr, 0, NULL) +#endif + +#ifdef lua_pcall +# undef lua_pcall +# define lua_pcall(L, na, nr, err) \ + (lua_pcallk)(L, na, nr, err, 0, NULL) +#endif + +#ifdef lua_yield +# undef lua_yield +# define lua_yield(L, nr) \ + (lua_yieldk)(L, nr, 0, NULL) +#endif + +#endif /* Lua 5.2 only */ + + + +/* other Lua versions */ +#if !defined(LUA_VERSION_NUM) || LUA_VERSION_NUM < 501 || LUA_VERSION_NUM > 503 + +# error "unsupported Lua version (i.e. not Lua 5.1, 5.2, or 5.3)" + +#endif /* other Lua versions except 5.1, 5.2, and 5.3 */ + + + +/* helper macro for defining continuation functions (for every version + * *except* Lua 5.2) */ +#ifndef LUA_KFUNCTION +#define LUA_KFUNCTION(_name) \ + static int (_name)(lua_State *L, int status, lua_KContext ctx) +#endif + + +#if defined(COMPAT53_INCLUDE_SOURCE) +# include "compat-5.3.c" +#endif + + +#endif /* COMPAT53_H_ */ + -- cgit v1.2.3-55-g6feb