The Battle for Wesnoth  1.15.12+dev
lvm.h
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1 /*
2 ** $Id: lvm.h $
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 F2Ieq
37 #endif
38 
39 
40 /*
41 ** Rounding modes for float->integer coercion
42  */
43 typedef enum {
44  F2Ieq, /* no rounding; accepts only integral values */
45  F2Ifloor, /* takes the floor of the number */
46  F2Iceil /* takes the ceil of the number */
47 } F2Imod;
48 
49 
50 /* convert an object to a float (including string coercion) */
51 #define tonumber(o,n) \
52  (ttisfloat(o) ? (*(n) = fltvalue(o), 1) : luaV_tonumber_(o,n))
53 
54 
55 /* convert an object to a float (without string coercion) */
56 #define tonumberns(o,n) \
57  (ttisfloat(o) ? ((n) = fltvalue(o), 1) : \
58  (ttisinteger(o) ? ((n) = cast_num(ivalue(o)), 1) : 0))
59 
60 
61 /* convert an object to an integer (including string coercion) */
62 #define tointeger(o,i) \
63  (ttisinteger(o) ? (*(i) = ivalue(o), 1) : luaV_tointeger(o,i,LUA_FLOORN2I))
64 
65 
66 /* convert an object to an integer (without string coercion) */
67 #define tointegerns(o,i) \
68  (ttisinteger(o) ? (*(i) = ivalue(o), 1) : luaV_tointegerns(o,i,LUA_FLOORN2I))
69 
70 
71 #define intop(op,v1,v2) l_castU2S(l_castS2U(v1) op l_castS2U(v2))
72 
73 #define luaV_rawequalobj(t1,t2) luaV_equalobj(NULL,t1,t2)
74 
75 
76 /*
77 ** fast track for 'gettable': if 't' is a table and 't[k]' is present,
78 ** return 1 with 'slot' pointing to 't[k]' (position of final result).
79 ** Otherwise, return 0 (meaning it will have to check metamethod)
80 ** with 'slot' pointing to an empty 't[k]' (if 't' is a table) or NULL
81 ** (otherwise). 'f' is the raw get function to use.
82 */
83 #define luaV_fastget(L,t,k,slot,f) \
84  (!ttistable(t) \
85  ? (slot = NULL, 0) /* not a table; 'slot' is NULL and result is 0 */ \
86  : (slot = f(hvalue(t), k), /* else, do raw access */ \
87  !isempty(slot))) /* result not empty? */
88 
89 
90 /*
91 ** Special case of 'luaV_fastget' for integers, inlining the fast case
92 ** of 'luaH_getint'.
93 */
94 #define luaV_fastgeti(L,t,k,slot) \
95  (!ttistable(t) \
96  ? (slot = NULL, 0) /* not a table; 'slot' is NULL and result is 0 */ \
97  : (slot = (l_castS2U(k) - 1u < hvalue(t)->alimit) \
98  ? &hvalue(t)->array[k - 1] : luaH_getint(hvalue(t), k), \
99  !isempty(slot))) /* result not empty? */
100 
101 
102 /*
103 ** Finish a fast set operation (when fast get succeeds). In that case,
104 ** 'slot' points to the place to put the value.
105 */
106 #define luaV_finishfastset(L,t,slot,v) \
107  { setobj2t(L, cast(TValue *,slot), v); \
108  luaC_barrierback(L, gcvalue(t), v); }
109 
110 
111 
112 
113 LUAI_FUNC int luaV_equalobj (lua_State *L, const TValue *t1, const TValue *t2);
114 LUAI_FUNC int luaV_lessthan (lua_State *L, const TValue *l, const TValue *r);
115 LUAI_FUNC int luaV_lessequal (lua_State *L, const TValue *l, const TValue *r);
116 LUAI_FUNC int luaV_tonumber_ (const TValue *obj, lua_Number *n);
117 LUAI_FUNC int luaV_tointeger (const TValue *obj, lua_Integer *p, F2Imod mode);
118 LUAI_FUNC int luaV_tointegerns (const TValue *obj, lua_Integer *p,
119  F2Imod mode);
121 LUAI_FUNC void luaV_finishget (lua_State *L, const TValue *t, TValue *key,
122  StkId val, const TValue *slot);
123 LUAI_FUNC void luaV_finishset (lua_State *L, const TValue *t, TValue *key,
124  TValue *val, const TValue *slot);
127 LUAI_FUNC void luaV_concat (lua_State *L, int total);
132 LUAI_FUNC void luaV_objlen (lua_State *L, StkId ra, const TValue *rb);
133 
134 #endif
LUAI_FUNC void luaV_finishget(lua_State *L, const TValue *t, TValue *key, StkId val, const TValue *slot)
Definition: lvm.cpp:287
LUAI_FUNC void luaV_finishOp(lua_State *L)
Definition: lvm.cpp:806
LUAI_FUNC lua_Integer luaV_shiftl(lua_Integer x, lua_Integer y)
Definition: lvm.cpp:769
Definition: lvm.h:46
#define LUAI_FUNC
Definition: luaconf.h:307
LUAI_FUNC lua_Number luaV_modf(lua_State *L, lua_Number x, lua_Number y)
Definition: lvm.cpp:754
LUAI_FUNC int luaV_tointeger(const TValue *obj, lua_Integer *p, F2Imod mode)
Definition: lvm.cpp:152
Definition: lobject.h:65
LUAI_FUNC void luaV_finishset(lua_State *L, const TValue *t, TValue *key, TValue *val, const TValue *slot)
Definition: lvm.cpp:330
LUAI_FUNC int luaV_flttointeger(lua_Number n, lua_Integer *p, F2Imod mode)
Definition: lvm.cpp:121
LUAI_FUNC lua_Integer luaV_mod(lua_State *L, lua_Integer x, lua_Integer y)
Definition: lvm.cpp:736
LUAI_FUNC void luaV_execute(lua_State *L, CallInfo *ci)
Definition: lvm.cpp:1122
LUA_INTEGER lua_Integer
Definition: lua.h:94
Definition: lvm.h:44
LUAI_FUNC int luaV_tointegerns(const TValue *obj, lua_Integer *p, F2Imod mode)
Definition: lvm.cpp:137
LUAI_FUNC void luaV_objlen(lua_State *L, StkId ra, const TValue *rb)
Definition: lvm.cpp:681
LUAI_FUNC int luaV_equalobj(lua_State *L, const TValue *t1, const TValue *t2)
Definition: lvm.cpp:568
mock_party p
Definition: lvm.h:45
LUAI_FUNC lua_Integer luaV_idiv(lua_State *L, lua_Integer x, lua_Integer y)
Definition: lvm.cpp:716
double t
Definition: astarsearch.cpp:64
LUAI_FUNC int luaV_lessequal(lua_State *L, const TValue *l, const TValue *r)
Definition: lvm.cpp:557
LUAI_FUNC int luaV_lessthan(lua_State *L, const TValue *l, const TValue *r)
Definition: lvm.cpp:535
LUAI_FUNC int luaV_tonumber_(const TValue *obj, lua_Number *n)
Definition: lvm.cpp:103
LUAI_FUNC void luaV_concat(lua_State *L, int total)
Definition: lvm.cpp:636
F2Imod
Definition: lvm.h:43
static map_location::DIRECTION n
LUA_NUMBER lua_Number
Definition: lua.h:90