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1 | /* BEGIN CSTYLED */ |
2 | /* | |
3 | ** $Id: ldo.h,v 2.20.1.1 2013/04/12 18:48:47 roberto Exp $ | |
4 | ** Stack and Call structure of Lua | |
5 | ** See Copyright Notice in lua.h | |
6 | */ | |
7 | ||
8 | #ifndef ldo_h | |
9 | #define ldo_h | |
10 | ||
11 | ||
12 | #include "lobject.h" | |
13 | #include "lstate.h" | |
14 | #include "lzio.h" | |
15 | ||
16 | ||
17 | #define luaD_checkstack(L,n) if (L->stack_last - L->top <= (n)) \ | |
18 | luaD_growstack(L, n); else condmovestack(L); | |
19 | ||
20 | ||
21 | #define incr_top(L) {L->top++; luaD_checkstack(L,0);} | |
22 | ||
23 | #define savestack(L,p) ((char *)(p) - (char *)L->stack) | |
24 | #define restorestack(L,n) ((TValue *)((char *)L->stack + (n))) | |
25 | ||
26 | ||
27 | /* type of protected functions, to be ran by `runprotected' */ | |
28 | typedef void (*Pfunc) (lua_State *L, void *ud); | |
29 | ||
30 | LUAI_FUNC int luaD_protectedparser (lua_State *L, ZIO *z, const char *name, | |
31 | const char *mode); | |
32 | LUAI_FUNC void luaD_hook (lua_State *L, int event, int line); | |
33 | LUAI_FUNC int luaD_precall (lua_State *L, StkId func, int nresults); | |
34 | LUAI_FUNC void luaD_call (lua_State *L, StkId func, int nResults, | |
35 | int allowyield); | |
36 | LUAI_FUNC int luaD_pcall (lua_State *L, Pfunc func, void *u, | |
37 | ptrdiff_t oldtop, ptrdiff_t ef); | |
38 | LUAI_FUNC int luaD_poscall (lua_State *L, StkId firstResult); | |
39 | LUAI_FUNC void luaD_reallocstack (lua_State *L, int newsize); | |
40 | LUAI_FUNC void luaD_growstack (lua_State *L, int n); | |
41 | LUAI_FUNC void luaD_shrinkstack (lua_State *L); | |
42 | ||
43 | LUAI_FUNC l_noret luaD_throw (lua_State *L, int errcode); | |
44 | LUAI_FUNC int luaD_rawrunprotected (lua_State *L, Pfunc f, void *ud); | |
45 | ||
46 | #endif | |
47 | /* END CSTYLED */ |