aboutsummaryrefslogtreecommitdiff
path: root/lib/lua/src/lvm.h
blob: bfe4f5678d0256150b9022a3ca2060fe9b963914 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
/*
** $Id: lvm.h,v 2.5.1.1 2007/12/27 13:02:25 roberto Exp $
** Lua virtual machine
** See Copyright Notice in lua.h
*/

#ifndef lvm_h
#define lvm_h


#include "ldo.h"
#include "lobject.h"
#include "ltm.h"


#define tostring(L,o) ((ttype(o) == LUA_TSTRING) || (luaV_tostring(L, o)))

#define tonumber(o,n)	(ttype(o) == LUA_TNUMBER || \
                         (((o) = luaV_tonumber(o,n)) != NULL))

#define equalobj(L,o1,o2) \
	(ttype(o1) == ttype(o2) && luaV_equalval(L, o1, o2))


LUAI_FUNC int luaV_lessthan (lua_State *L, const TValue *l, const TValue *r);
LUAI_FUNC int luaV_equalval (lua_State *L, const TValue *t1, const TValue *t2);
LUAI_FUNC const TValue *luaV_tonumber (const TValue *obj, TValue *n);
LUAI_FUNC int luaV_tostring (lua_State *L, StkId obj);
LUAI_FUNC void luaV_gettable (lua_State *L, const TValue *t, TValue *key,
                                            StkId val);
LUAI_FUNC void luaV_settable (lua_State *L, const TValue *t, TValue *key,
                                            StkId val);
LUAI_FUNC void luaV_execute (lua_State *L, int nexeccalls);
LUAI_FUNC void luaV_concat (lua_State *L, int total, int last);

#endif
2) #define MAX_INT (INT_MAX-2) /* maximum value of an int (-2 for safety) */ /* ** conversion of pointer to integer ** this is for hashing only; there is no problem if the integer ** cannot hold the whole pointer value */ #define IntPoint(p) ((unsigned int)(lu_mem)(p)) /* type to ensure maximum alignment */ typedef LUAI_USER_ALIGNMENT_T L_Umaxalign; /* result of a `usual argument conversion' over lua_Number */ typedef LUAI_UACNUMBER l_uacNumber; /* internal assertions for in-house debugging */ #ifdef lua_assert #define check_exp(c,e) (lua_assert(c), (e)) #define api_check(l,e) lua_assert(e) #else #define lua_assert(c) ((void)0) #define check_exp(c,e) (e) #define api_check luai_apicheck #endif #ifndef UNUSED #define UNUSED(x) ((void)(x)) /* to avoid warnings */ #endif #ifndef cast #define cast(t, exp) ((t)(exp)) #endif #define cast_byte(i) cast(lu_byte, (i)) #define cast_num(i) cast(lua_Number, (i)) #define cast_int(i) cast(int, (i)) /* ** type for virtual-machine instructions ** must be an unsigned with (at least) 4 bytes (see details in lopcodes.h) */ typedef lu_int32 Instruction; /* maximum stack for a Lua function */ #define MAXSTACK 250 /* minimum size for the string table (must be power of 2) */ #ifndef MINSTRTABSIZE #define MINSTRTABSIZE 32 #endif /* minimum size for string buffer */ #ifndef LUA_MINBUFFER #define LUA_MINBUFFER 32 #endif #ifndef lua_lock #define lua_lock(L) ((void) 0) #define lua_unlock(L) ((void) 0) #endif #ifndef luai_threadyield #define luai_threadyield(L) {lua_unlock(L); lua_lock(L);} #endif /* ** macro to control inclusion of some hard tests on stack reallocation */ #ifndef HARDSTACKTESTS #define condhardstacktests(x) ((void)0) #else #define condhardstacktests(x) x #endif #endif