The Battle for Wesnoth  1.15.1+dev
lvm.h
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1 /*
2 ** $Id: lvm.h,v 2.41.1.1 2017/04/19 17:20:42 roberto Exp $
3 ** Lua virtual machine
4 ** See Copyright Notice in lua.h
5 */
6 
7 #ifndef lvm_h
8 #define lvm_h
9 
10 
11 #include "ldo.h"
12 #include "lobject.h"
13 #include "ltm.h"
14 
15 
16 #if !defined(LUA_NOCVTN2S)
17 #define cvt2str(o) ttisnumber(o)
18 #else
19 #define cvt2str(o) 0 /* no conversion from numbers to strings */
20 #endif
21 
22 
23 #if !defined(LUA_NOCVTS2N)
24 #define cvt2num(o) ttisstring(o)
25 #else
26 #define cvt2num(o) 0 /* no conversion from strings to numbers */
27 #endif
28 
29 
30 /*
31 ** You can define LUA_FLOORN2I if you want to convert floats to integers
32 ** by flooring them (instead of raising an error if they are not
33 ** integral values)
34 */
35 #if !defined(LUA_FLOORN2I)
36 #define LUA_FLOORN2I 0
37 #endif
38 
39 
40 #define tonumber(o,n) \
41  (ttisfloat(o) ? (*(n) = fltvalue(o), 1) : luaV_tonumber_(o,n))
42 
43 #define tointeger(o,i) \
44  (ttisinteger(o) ? (*(i) = ivalue(o), 1) : luaV_tointeger(o,i,LUA_FLOORN2I))
45 
46 #define intop(op,v1,v2) l_castU2S(l_castS2U(v1) op l_castS2U(v2))
47 
48 #define luaV_rawequalobj(t1,t2) luaV_equalobj(NULL,t1,t2)
49 
50 
51 /*
52 ** fast track for 'gettable': if 't' is a table and 't[k]' is not nil,
53 ** return 1 with 'slot' pointing to 't[k]' (final result). Otherwise,
54 ** return 0 (meaning it will have to check metamethod) with 'slot'
55 ** pointing to a nil 't[k]' (if 't' is a table) or NULL (otherwise).
56 ** 'f' is the raw get function to use.
57 */
58 #define luaV_fastget(L,t,k,slot,f) \
59  (!ttistable(t) \
60  ? (slot = NULL, 0) /* not a table; 'slot' is NULL and result is 0 */ \
61  : (slot = f(hvalue(t), k), /* else, do raw access */ \
62  !ttisnil(slot))) /* result not nil? */
63 
64 /*
65 ** standard implementation for 'gettable'
66 */
67 #define luaV_gettable(L,t,k,v) { const TValue *slot; \
68  if (luaV_fastget(L,t,k,slot,luaH_get)) { setobj2s(L, v, slot); } \
69  else luaV_finishget(L,t,k,v,slot); }
70 
71 
72 /*
73 ** Fast track for set table. If 't' is a table and 't[k]' is not nil,
74 ** call GC barrier, do a raw 't[k]=v', and return true; otherwise,
75 ** return false with 'slot' equal to NULL (if 't' is not a table) or
76 ** 'nil'. (This is needed by 'luaV_finishget'.) Note that, if the macro
77 ** returns true, there is no need to 'invalidateTMcache', because the
78 ** call is not creating a new entry.
79 */
80 #define luaV_fastset(L,t,k,slot,f,v) \
81  (!ttistable(t) \
82  ? (slot = NULL, 0) \
83  : (slot = f(hvalue(t), k), \
84  ttisnil(slot) ? 0 \
85  : (luaC_barrierback(L, hvalue(t), v), \
86  setobj2t(L, cast(TValue *,slot), v), \
87  1)))
88 
89 
90 #define luaV_settable(L,t,k,v) { const TValue *slot; \
91  if (!luaV_fastset(L,t,k,slot,luaH_get,v)) \
92  luaV_finishset(L,t,k,v,slot); }
93 
94 
95 
96 LUAI_FUNC int luaV_equalobj (lua_State *L, const TValue *t1, const TValue *t2);
97 LUAI_FUNC int luaV_lessthan (lua_State *L, const TValue *l, const TValue *r);
98 LUAI_FUNC int luaV_lessequal (lua_State *L, const TValue *l, const TValue *r);
99 LUAI_FUNC int luaV_tonumber_ (const TValue *obj, lua_Number *n);
100 LUAI_FUNC int luaV_tointeger (const TValue *obj, lua_Integer *p, int mode);
101 LUAI_FUNC void luaV_finishget (lua_State *L, const TValue *t, TValue *key,
102  StkId val, const TValue *slot);
103 LUAI_FUNC void luaV_finishset (lua_State *L, const TValue *t, TValue *key,
104  StkId val, const TValue *slot);
107 LUAI_FUNC void luaV_concat (lua_State *L, int total);
111 LUAI_FUNC void luaV_objlen (lua_State *L, StkId ra, const TValue *rb);
112 
113 #endif
LUAI_FUNC void luaV_finishget(lua_State *L, const TValue *t, TValue *key, StkId val, const TValue *slot)
Definition: lvm.cpp:160
LUAI_FUNC void luaV_finishOp(lua_State *L)
Definition: lvm.cpp:656
LUAI_FUNC lua_Integer luaV_shiftl(lua_Integer x, lua_Integer y)
Definition: lvm.cpp:593
#define LUAI_FUNC
Definition: luaconf.h:282
LUAI_FUNC lua_Integer luaV_mod(lua_State *L, lua_Integer x, lua_Integer y)
Definition: lvm.cpp:572
LUAI_FUNC void luaV_finishset(lua_State *L, const TValue *t, TValue *key, StkId val, const TValue *slot)
Definition: lvm.cpp:203
LUA_INTEGER lua_Integer
Definition: lua.h:93
LUAI_FUNC lua_Integer luaV_div(lua_State *L, lua_Integer x, lua_Integer y)
Definition: lvm.cpp:552
LUAI_FUNC void luaV_objlen(lua_State *L, StkId ra, const TValue *rb)
Definition: lvm.cpp:517
LUAI_FUNC int luaV_equalobj(lua_State *L, const TValue *t1, const TValue *t2)
Definition: lvm.cpp:407
mock_party p
LUAI_FUNC int luaV_tointeger(const TValue *obj, lua_Integer *p, int mode)
Definition: lvm.cpp:94
LUAI_FUNC void luaV_execute(lua_State *L)
Definition: lvm.cpp:786
double t
Definition: astarsearch.cpp:64
LUAI_FUNC int luaV_lessequal(lua_State *L, const TValue *l, const TValue *r)
Definition: lvm.cpp:384
LUAI_FUNC int luaV_lessthan(lua_State *L, const TValue *l, const TValue *r)
Definition: lvm.cpp:364
LUAI_FUNC int luaV_tonumber_(const TValue *obj, lua_Number *n)
Definition: lvm.cpp:72
LUAI_FUNC void luaV_concat(lua_State *L, int total)
Definition: lvm.cpp:474
static map_location::DIRECTION n
LUA_NUMBER lua_Number
Definition: lua.h:89