root/src/lua-5.1.3/src/ldo.h

Revision 5c8778c4361d2ad3adc94ef98d804c6fa9e6ba7c, 1.9 kB (checked in by Theo Schlossnagle <jesus@omniti.com>, 10 years ago)

import lua... I'd like to write checkers in lua

  • Property mode set to 100644
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1 /*
2 ** $Id: ldo.h,v 2.7.1.1 2007/12/27 13:02:25 roberto Exp $
3 ** Stack and Call structure of Lua
4 ** See Copyright Notice in lua.h
5 */
6
7 #ifndef ldo_h
8 #define ldo_h
9
10
11 #include "lobject.h"
12 #include "lstate.h"
13 #include "lzio.h"
14
15
16 #define luaD_checkstack(L,n)    \
17   if ((char *)L->stack_last - (char *)L->top <= (n)*(int)sizeof(TValue)) \
18     luaD_growstack(L, n); \
19   else condhardstacktests(luaD_reallocstack(L, L->stacksize - EXTRA_STACK - 1));
20
21
22 #define incr_top(L) {luaD_checkstack(L,1); L->top++;}
23
24 #define savestack(L,p)          ((char *)(p) - (char *)L->stack)
25 #define restorestack(L,n)       ((TValue *)((char *)L->stack + (n)))
26
27 #define saveci(L,p)             ((char *)(p) - (char *)L->base_ci)
28 #define restoreci(L,n)          ((CallInfo *)((char *)L->base_ci + (n)))
29
30
31 /* results from luaD_precall */
32 #define PCRLUA          0       /* initiated a call to a Lua function */
33 #define PCRC            1       /* did a call to a C function */
34 #define PCRYIELD        2       /* C funtion yielded */
35
36
37 /* type of protected functions, to be ran by `runprotected' */
38 typedef void (*Pfunc) (lua_State *L, void *ud);
39
40 LUAI_FUNC int luaD_protectedparser (lua_State *L, ZIO *z, const char *name);
41 LUAI_FUNC void luaD_callhook (lua_State *L, int event, int line);
42 LUAI_FUNC int luaD_precall (lua_State *L, StkId func, int nresults);
43 LUAI_FUNC void luaD_call (lua_State *L, StkId func, int nResults);
44 LUAI_FUNC int luaD_pcall (lua_State *L, Pfunc func, void *u,
45                                         ptrdiff_t oldtop, ptrdiff_t ef);
46 LUAI_FUNC int luaD_poscall (lua_State *L, StkId firstResult);
47 LUAI_FUNC void luaD_reallocCI (lua_State *L, int newsize);
48 LUAI_FUNC void luaD_reallocstack (lua_State *L, int newsize);
49 LUAI_FUNC void luaD_growstack (lua_State *L, int n);
50
51 LUAI_FUNC void luaD_throw (lua_State *L, int errcode);
52 LUAI_FUNC int luaD_rawrunprotected (lua_State *L, Pfunc f, void *ud);
53
54 LUAI_FUNC void luaD_seterrorobj (lua_State *L, int errcode, StkId oldtop);
55
56 #endif
57
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