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487 lines
14 KiB
487 lines
14 KiB
6 years ago
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/*
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** $Id: lua.h,v 1.331 2016/05/30 15:53:28 roberto Exp $
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** Lua - A Scripting Language
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** Lua.org, PUC-Rio, Brazil (http://www.lua.org)
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** See Copyright Notice at the end of this file
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*/
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#ifndef lua_h
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#define lua_h
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#include <stdarg.h>
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#include <stddef.h>
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#include "luaconf.h"
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#define LUA_VERSION_MAJOR "5"
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#define LUA_VERSION_MINOR "3"
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#define LUA_VERSION_NUM 503
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#define LUA_VERSION_RELEASE "3"
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#define LUA_VERSION "Lua " LUA_VERSION_MAJOR "." LUA_VERSION_MINOR
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#define LUA_RELEASE LUA_VERSION "." LUA_VERSION_RELEASE
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#define LUA_COPYRIGHT LUA_RELEASE " Copyright (C) 1994-2016 Lua.org, PUC-Rio"
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#define LUA_AUTHORS "R. Ierusalimschy, L. H. de Figueiredo, W. Celes"
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/* mark for precompiled code ('<esc>Lua') */
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#define LUA_SIGNATURE "\x1bLua"
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/* option for multiple returns in 'lua_pcall' and 'lua_call' */
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#define LUA_MULTRET (-1)
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/*
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** Pseudo-indices
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** (-LUAI_MAXSTACK is the minimum valid index; we keep some free empty
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** space after that to help overflow detection)
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*/
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#define LUA_REGISTRYINDEX (-LUAI_MAXSTACK - 1000)
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#define lua_upvalueindex(i) (LUA_REGISTRYINDEX - (i))
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/* thread status */
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#define LUA_OK 0
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#define LUA_YIELD 1
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#define LUA_ERRRUN 2
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#define LUA_ERRSYNTAX 3
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#define LUA_ERRMEM 4
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#define LUA_ERRGCMM 5
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#define LUA_ERRERR 6
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typedef struct lua_State lua_State;
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/*
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** basic types
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*/
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#define LUA_TNONE (-1)
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#define LUA_TNIL 0
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#define LUA_TBOOLEAN 1
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#define LUA_TLIGHTUSERDATA 2
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#define LUA_TNUMBER 3
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#define LUA_TSTRING 4
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#define LUA_TTABLE 5
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#define LUA_TFUNCTION 6
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#define LUA_TUSERDATA 7
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#define LUA_TTHREAD 8
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#define LUA_NUMTAGS 9
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/* minimum Lua stack available to a C function */
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#define LUA_MINSTACK 20
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/* predefined values in the registry */
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#define LUA_RIDX_MAINTHREAD 1
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#define LUA_RIDX_GLOBALS 2
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#define LUA_RIDX_LAST LUA_RIDX_GLOBALS
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/* type of numbers in Lua */
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typedef LUA_NUMBER lua_Number;
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/* type for integer functions */
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typedef LUA_INTEGER lua_Integer;
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/* unsigned integer type */
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typedef LUA_UNSIGNED lua_Unsigned;
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/* type for continuation-function contexts */
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typedef LUA_KCONTEXT lua_KContext;
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/*
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** Type for C functions registered with Lua
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*/
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typedef int (*lua_CFunction) (lua_State *L);
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/*
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** Type for continuation functions
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*/
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typedef int (*lua_KFunction) (lua_State *L, int status, lua_KContext ctx);
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/*
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** Type for functions that read/write blocks when loading/dumping Lua chunks
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*/
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typedef const char * (*lua_Reader) (lua_State *L, void *ud, size_t *sz);
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typedef int (*lua_Writer) (lua_State *L, const void *p, size_t sz, void *ud);
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/*
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** Type for memory-allocation functions
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*/
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typedef void * (*lua_Alloc) (void *ud, void *ptr, size_t osize, size_t nsize);
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/*
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** generic extra include file
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*/
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#if defined(LUA_USER_H)
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#include LUA_USER_H
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#endif
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/*
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** RCS ident string
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*/
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extern const char lua_ident[];
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/*
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** state manipulation
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*/
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LUA_API lua_State *(lua_newstate) (lua_Alloc f, void *ud);
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LUA_API void (lua_close) (lua_State *L);
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LUA_API lua_State *(lua_newthread) (lua_State *L);
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LUA_API lua_CFunction (lua_atpanic) (lua_State *L, lua_CFunction panicf);
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LUA_API const lua_Number *(lua_version) (lua_State *L);
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/*
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** basic stack manipulation
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*/
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LUA_API int (lua_absindex) (lua_State *L, int idx);
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LUA_API int (lua_gettop) (lua_State *L);
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LUA_API void (lua_settop) (lua_State *L, int idx);
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LUA_API void (lua_pushvalue) (lua_State *L, int idx);
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LUA_API void (lua_rotate) (lua_State *L, int idx, int n);
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LUA_API void (lua_copy) (lua_State *L, int fromidx, int toidx);
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LUA_API int (lua_checkstack) (lua_State *L, int n);
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LUA_API void (lua_xmove) (lua_State *from, lua_State *to, int n);
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/*
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** access functions (stack -> C)
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*/
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LUA_API int (lua_isnumber) (lua_State *L, int idx);
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LUA_API int (lua_isstring) (lua_State *L, int idx);
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LUA_API int (lua_iscfunction) (lua_State *L, int idx);
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LUA_API int (lua_isinteger) (lua_State *L, int idx);
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LUA_API int (lua_isuserdata) (lua_State *L, int idx);
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LUA_API int (lua_type) (lua_State *L, int idx);
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LUA_API const char *(lua_typename) (lua_State *L, int tp);
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LUA_API lua_Number (lua_tonumberx) (lua_State *L, int idx, int *isnum);
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LUA_API lua_Integer (lua_tointegerx) (lua_State *L, int idx, int *isnum);
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LUA_API int (lua_toboolean) (lua_State *L, int idx);
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LUA_API const char *(lua_tolstring) (lua_State *L, int idx, size_t *len);
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LUA_API size_t (lua_rawlen) (lua_State *L, int idx);
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LUA_API lua_CFunction (lua_tocfunction) (lua_State *L, int idx);
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LUA_API void *(lua_touserdata) (lua_State *L, int idx);
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LUA_API lua_State *(lua_tothread) (lua_State *L, int idx);
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LUA_API const void *(lua_topointer) (lua_State *L, int idx);
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/*
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** Comparison and arithmetic functions
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*/
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#define LUA_OPADD 0 /* ORDER TM, ORDER OP */
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#define LUA_OPSUB 1
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#define LUA_OPMUL 2
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#define LUA_OPMOD 3
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#define LUA_OPPOW 4
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#define LUA_OPDIV 5
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#define LUA_OPIDIV 6
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#define LUA_OPBAND 7
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#define LUA_OPBOR 8
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#define LUA_OPBXOR 9
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#define LUA_OPSHL 10
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#define LUA_OPSHR 11
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#define LUA_OPUNM 12
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#define LUA_OPBNOT 13
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LUA_API void (lua_arith) (lua_State *L, int op);
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#define LUA_OPEQ 0
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#define LUA_OPLT 1
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#define LUA_OPLE 2
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LUA_API int (lua_rawequal) (lua_State *L, int idx1, int idx2);
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LUA_API int (lua_compare) (lua_State *L, int idx1, int idx2, int op);
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/*
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** push functions (C -> stack)
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*/
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LUA_API void (lua_pushnil) (lua_State *L);
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LUA_API void (lua_pushnumber) (lua_State *L, lua_Number n);
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LUA_API void (lua_pushinteger) (lua_State *L, lua_Integer n);
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LUA_API const char *(lua_pushlstring) (lua_State *L, const char *s, size_t len);
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LUA_API const char *(lua_pushstring) (lua_State *L, const char *s);
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LUA_API const char *(lua_pushvfstring) (lua_State *L, const char *fmt,
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va_list argp);
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LUA_API const char *(lua_pushfstring) (lua_State *L, const char *fmt, ...);
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LUA_API void (lua_pushcclosure) (lua_State *L, lua_CFunction fn, int n);
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LUA_API void (lua_pushboolean) (lua_State *L, int b);
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LUA_API void (lua_pushlightuserdata) (lua_State *L, void *p);
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LUA_API int (lua_pushthread) (lua_State *L);
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/*
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** get functions (Lua -> stack)
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*/
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LUA_API int (lua_getglobal) (lua_State *L, const char *name);
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LUA_API int (lua_gettable) (lua_State *L, int idx);
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LUA_API int (lua_getfield) (lua_State *L, int idx, const char *k);
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LUA_API int (lua_geti) (lua_State *L, int idx, lua_Integer n);
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LUA_API int (lua_rawget) (lua_State *L, int idx);
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LUA_API int (lua_rawgeti) (lua_State *L, int idx, lua_Integer n);
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LUA_API int (lua_rawgetp) (lua_State *L, int idx, const void *p);
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LUA_API void (lua_createtable) (lua_State *L, int narr, int nrec);
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LUA_API void *(lua_newuserdata) (lua_State *L, size_t sz);
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LUA_API int (lua_getmetatable) (lua_State *L, int objindex);
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LUA_API int (lua_getuservalue) (lua_State *L, int idx);
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/*
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** set functions (stack -> Lua)
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*/
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LUA_API void (lua_setglobal) (lua_State *L, const char *name);
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LUA_API void (lua_settable) (lua_State *L, int idx);
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LUA_API void (lua_setfield) (lua_State *L, int idx, const char *k);
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LUA_API void (lua_seti) (lua_State *L, int idx, lua_Integer n);
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LUA_API void (lua_rawset) (lua_State *L, int idx);
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LUA_API void (lua_rawseti) (lua_State *L, int idx, lua_Integer n);
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LUA_API void (lua_rawsetp) (lua_State *L, int idx, const void *p);
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LUA_API int (lua_setmetatable) (lua_State *L, int objindex);
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LUA_API void (lua_setuservalue) (lua_State *L, int idx);
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/*
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** 'load' and 'call' functions (load and run Lua code)
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*/
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LUA_API void (lua_callk) (lua_State *L, int nargs, int nresults,
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lua_KContext ctx, lua_KFunction k);
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#define lua_call(L,n,r) lua_callk(L, (n), (r), 0, NULL)
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LUA_API int (lua_pcallk) (lua_State *L, int nargs, int nresults, int errfunc,
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lua_KContext ctx, lua_KFunction k);
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#define lua_pcall(L,n,r,f) lua_pcallk(L, (n), (r), (f), 0, NULL)
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LUA_API int (lua_load) (lua_State *L, lua_Reader reader, void *dt,
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const char *chunkname, const char *mode);
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LUA_API int (lua_dump) (lua_State *L, lua_Writer writer, void *data, int strip);
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/*
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** coroutine functions
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*/
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LUA_API int (lua_yieldk) (lua_State *L, int nresults, lua_KContext ctx,
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lua_KFunction k);
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LUA_API int (lua_resume) (lua_State *L, lua_State *from, int narg);
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LUA_API int (lua_status) (lua_State *L);
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LUA_API int (lua_isyieldable) (lua_State *L);
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#define lua_yield(L,n) lua_yieldk(L, (n), 0, NULL)
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/*
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** garbage-collection function and options
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*/
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#define LUA_GCSTOP 0
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#define LUA_GCRESTART 1
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#define LUA_GCCOLLECT 2
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#define LUA_GCCOUNT 3
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#define LUA_GCCOUNTB 4
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#define LUA_GCSTEP 5
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#define LUA_GCSETPAUSE 6
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#define LUA_GCSETSTEPMUL 7
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#define LUA_GCISRUNNING 9
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LUA_API int (lua_gc) (lua_State *L, int what, int data);
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/*
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** miscellaneous functions
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*/
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LUA_API int (lua_error) (lua_State *L);
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LUA_API int (lua_next) (lua_State *L, int idx);
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LUA_API void (lua_concat) (lua_State *L, int n);
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LUA_API void (lua_len) (lua_State *L, int idx);
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LUA_API size_t (lua_stringtonumber) (lua_State *L, const char *s);
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LUA_API lua_Alloc (lua_getallocf) (lua_State *L, void **ud);
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LUA_API void (lua_setallocf) (lua_State *L, lua_Alloc f, void *ud);
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/*
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** {==============================================================
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** some useful macros
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** ===============================================================
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*/
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#define lua_getextraspace(L) ((void *)((char *)(L) - LUA_EXTRASPACE))
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#define lua_tonumber(L,i) lua_tonumberx(L,(i),NULL)
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#define lua_tointeger(L,i) lua_tointegerx(L,(i),NULL)
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#define lua_pop(L,n) lua_settop(L, -(n)-1)
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#define lua_newtable(L) lua_createtable(L, 0, 0)
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#define lua_register(L,n,f) (lua_pushcfunction(L, (f)), lua_setglobal(L, (n)))
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#define lua_pushcfunction(L,f) lua_pushcclosure(L, (f), 0)
|
||
|
|
|
||
|
|
#define lua_isfunction(L,n) (lua_type(L, (n)) == LUA_TFUNCTION)
|
||
|
|
#define lua_istable(L,n) (lua_type(L, (n)) == LUA_TTABLE)
|
||
|
|
#define lua_islightuserdata(L,n) (lua_type(L, (n)) == LUA_TLIGHTUSERDATA)
|
||
|
|
#define lua_isnil(L,n) (lua_type(L, (n)) == LUA_TNIL)
|
||
|
|
#define lua_isboolean(L,n) (lua_type(L, (n)) == LUA_TBOOLEAN)
|
||
|
|
#define lua_isthread(L,n) (lua_type(L, (n)) == LUA_TTHREAD)
|
||
|
|
#define lua_isnone(L,n) (lua_type(L, (n)) == LUA_TNONE)
|
||
|
|
#define lua_isnoneornil(L, n) (lua_type(L, (n)) <= 0)
|
||
|
|
|
||
|
|
#define lua_pushliteral(L, s) lua_pushstring(L, "" s)
|
||
|
|
|
||
|
|
#define lua_pushglobaltable(L) \
|
||
|
|
((void)lua_rawgeti(L, LUA_REGISTRYINDEX, LUA_RIDX_GLOBALS))
|
||
|
|
|
||
|
|
#define lua_tostring(L,i) lua_tolstring(L, (i), NULL)
|
||
|
|
|
||
|
|
|
||
|
|
#define lua_insert(L,idx) lua_rotate(L, (idx), 1)
|
||
|
|
|
||
|
|
#define lua_remove(L,idx) (lua_rotate(L, (idx), -1), lua_pop(L, 1))
|
||
|
|
|
||
|
|
#define lua_replace(L,idx) (lua_copy(L, -1, (idx)), lua_pop(L, 1))
|
||
|
|
|
||
|
|
/* }============================================================== */
|
||
|
|
|
||
|
|
|
||
|
|
/*
|
||
|
|
** {==============================================================
|
||
|
|
** compatibility macros for unsigned conversions
|
||
|
|
** ===============================================================
|
||
|
|
*/
|
||
|
|
#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)
|
||
|
|
|
||
|
|
#endif
|
||
|
|
/* }============================================================== */
|
||
|
|
|
||
|
|
/*
|
||
|
|
** {======================================================================
|
||
|
|
** Debug API
|
||
|
|
** =======================================================================
|
||
|
|
*/
|
||
|
|
|
||
|
|
|
||
|
|
/*
|
||
|
|
** Event codes
|
||
|
|
*/
|
||
|
|
#define LUA_HOOKCALL 0
|
||
|
|
#define LUA_HOOKRET 1
|
||
|
|
#define LUA_HOOKLINE 2
|
||
|
|
#define LUA_HOOKCOUNT 3
|
||
|
|
#define LUA_HOOKTAILCALL 4
|
||
|
|
|
||
|
|
|
||
|
|
/*
|
||
|
|
** Event masks
|
||
|
|
*/
|
||
|
|
#define LUA_MASKCALL (1 << LUA_HOOKCALL)
|
||
|
|
#define LUA_MASKRET (1 << LUA_HOOKRET)
|
||
|
|
#define LUA_MASKLINE (1 << LUA_HOOKLINE)
|
||
|
|
#define LUA_MASKCOUNT (1 << LUA_HOOKCOUNT)
|
||
|
|
|
||
|
|
typedef struct lua_Debug lua_Debug; /* activation record */
|
||
|
|
|
||
|
|
|
||
|
|
/* Functions to be called by the debugger in specific events */
|
||
|
|
typedef void (*lua_Hook) (lua_State *L, lua_Debug *ar);
|
||
|
|
|
||
|
|
|
||
|
|
LUA_API int (lua_getstack) (lua_State *L, int level, lua_Debug *ar);
|
||
|
|
LUA_API int (lua_getinfo) (lua_State *L, const char *what, lua_Debug *ar);
|
||
|
|
LUA_API const char *(lua_getlocal) (lua_State *L, const lua_Debug *ar, int n);
|
||
|
|
LUA_API const char *(lua_setlocal) (lua_State *L, const lua_Debug *ar, int n);
|
||
|
|
LUA_API const char *(lua_getupvalue) (lua_State *L, int funcindex, int n);
|
||
|
|
LUA_API const char *(lua_setupvalue) (lua_State *L, int funcindex, int n);
|
||
|
|
|
||
|
|
LUA_API void *(lua_upvalueid) (lua_State *L, int fidx, int n);
|
||
|
|
LUA_API void (lua_upvaluejoin) (lua_State *L, int fidx1, int n1,
|
||
|
|
int fidx2, int n2);
|
||
|
|
|
||
|
|
LUA_API void (lua_sethook) (lua_State *L, lua_Hook func, int mask, int count);
|
||
|
|
LUA_API lua_Hook (lua_gethook) (lua_State *L);
|
||
|
|
LUA_API int (lua_gethookmask) (lua_State *L);
|
||
|
|
LUA_API int (lua_gethookcount) (lua_State *L);
|
||
|
|
|
||
|
|
|
||
|
|
struct lua_Debug {
|
||
|
|
int event;
|
||
|
|
const char *name; /* (n) */
|
||
|
|
const char *namewhat; /* (n) 'global', 'local', 'field', 'method' */
|
||
|
|
const char *what; /* (S) 'Lua', 'C', 'main', 'tail' */
|
||
|
|
const char *source; /* (S) */
|
||
|
|
int currentline; /* (l) */
|
||
|
|
int linedefined; /* (S) */
|
||
|
|
int lastlinedefined; /* (S) */
|
||
|
|
unsigned char nups; /* (u) number of upvalues */
|
||
|
|
unsigned char nparams;/* (u) number of parameters */
|
||
|
|
char isvararg; /* (u) */
|
||
|
|
char istailcall; /* (t) */
|
||
|
|
char short_src[LUA_IDSIZE]; /* (S) */
|
||
|
|
/* private part */
|
||
|
|
struct CallInfo *i_ci; /* active function */
|
||
|
|
};
|
||
|
|
|
||
|
|
/* }====================================================================== */
|
||
|
|
|
||
|
|
|
||
|
|
/******************************************************************************
|
||
|
|
* Copyright (C) 1994-2016 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.
|
||
|
|
******************************************************************************/
|
||
|
|
|
||
|
|
|
||
|
|
#endif
|