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Diffstat (limited to '')
| -rw-r--r-- | win-build/Lua51/lobject.h | 381 |
1 files changed, 381 insertions, 0 deletions
diff --git a/win-build/Lua51/lobject.h b/win-build/Lua51/lobject.h new file mode 100644 index 0000000..f1e447e --- /dev/null +++ b/win-build/Lua51/lobject.h | |||
| @@ -0,0 +1,381 @@ | |||
| 1 | /* | ||
| 2 | ** $Id: lobject.h,v 2.20.1.2 2008/08/06 13:29:48 roberto Exp $ | ||
| 3 | ** Type definitions for Lua objects | ||
| 4 | ** See Copyright Notice in lua.h | ||
| 5 | */ | ||
| 6 | |||
| 7 | |||
| 8 | #ifndef lobject_h | ||
| 9 | #define lobject_h | ||
| 10 | |||
| 11 | |||
| 12 | #include <stdarg.h> | ||
| 13 | |||
| 14 | |||
| 15 | #include "llimits.h" | ||
| 16 | #include "lua.h" | ||
| 17 | |||
| 18 | |||
| 19 | /* tags for values visible from Lua */ | ||
| 20 | #define LAST_TAG LUA_TTHREAD | ||
| 21 | |||
| 22 | #define NUM_TAGS (LAST_TAG+1) | ||
| 23 | |||
| 24 | |||
| 25 | /* | ||
| 26 | ** Extra tags for non-values | ||
| 27 | */ | ||
| 28 | #define LUA_TPROTO (LAST_TAG+1) | ||
| 29 | #define LUA_TUPVAL (LAST_TAG+2) | ||
| 30 | #define LUA_TDEADKEY (LAST_TAG+3) | ||
| 31 | |||
| 32 | |||
| 33 | /* | ||
| 34 | ** Union of all collectable objects | ||
| 35 | */ | ||
| 36 | typedef union GCObject GCObject; | ||
| 37 | |||
| 38 | |||
| 39 | /* | ||
| 40 | ** Common Header for all collectable objects (in macro form, to be | ||
| 41 | ** included in other objects) | ||
| 42 | */ | ||
| 43 | #define CommonHeader GCObject *next; lu_byte tt; lu_byte marked | ||
| 44 | |||
| 45 | |||
| 46 | /* | ||
| 47 | ** Common header in struct form | ||
| 48 | */ | ||
| 49 | typedef struct GCheader { | ||
| 50 | CommonHeader; | ||
| 51 | } GCheader; | ||
| 52 | |||
| 53 | |||
| 54 | |||
| 55 | |||
| 56 | /* | ||
| 57 | ** Union of all Lua values | ||
| 58 | */ | ||
| 59 | typedef union { | ||
| 60 | GCObject *gc; | ||
| 61 | void *p; | ||
| 62 | lua_Number n; | ||
| 63 | int b; | ||
| 64 | } Value; | ||
| 65 | |||
| 66 | |||
| 67 | /* | ||
| 68 | ** Tagged Values | ||
| 69 | */ | ||
| 70 | |||
| 71 | #define TValuefields Value value; int tt | ||
| 72 | |||
| 73 | typedef struct lua_TValue { | ||
| 74 | TValuefields; | ||
| 75 | } TValue; | ||
| 76 | |||
| 77 | |||
| 78 | /* Macros to test type */ | ||
| 79 | #define ttisnil(o) (ttype(o) == LUA_TNIL) | ||
| 80 | #define ttisnumber(o) (ttype(o) == LUA_TNUMBER) | ||
| 81 | #define ttisstring(o) (ttype(o) == LUA_TSTRING) | ||
| 82 | #define ttistable(o) (ttype(o) == LUA_TTABLE) | ||
| 83 | #define ttisfunction(o) (ttype(o) == LUA_TFUNCTION) | ||
| 84 | #define ttisboolean(o) (ttype(o) == LUA_TBOOLEAN) | ||
| 85 | #define ttisuserdata(o) (ttype(o) == LUA_TUSERDATA) | ||
| 86 | #define ttisthread(o) (ttype(o) == LUA_TTHREAD) | ||
| 87 | #define ttislightuserdata(o) (ttype(o) == LUA_TLIGHTUSERDATA) | ||
| 88 | |||
| 89 | /* Macros to access values */ | ||
| 90 | #define ttype(o) ((o)->tt) | ||
| 91 | #define gcvalue(o) check_exp(iscollectable(o), (o)->value.gc) | ||
| 92 | #define pvalue(o) check_exp(ttislightuserdata(o), (o)->value.p) | ||
| 93 | #define nvalue(o) check_exp(ttisnumber(o), (o)->value.n) | ||
| 94 | #define rawtsvalue(o) check_exp(ttisstring(o), &(o)->value.gc->ts) | ||
| 95 | #define tsvalue(o) (&rawtsvalue(o)->tsv) | ||
| 96 | #define rawuvalue(o) check_exp(ttisuserdata(o), &(o)->value.gc->u) | ||
| 97 | #define uvalue(o) (&rawuvalue(o)->uv) | ||
| 98 | #define clvalue(o) check_exp(ttisfunction(o), &(o)->value.gc->cl) | ||
| 99 | #define hvalue(o) check_exp(ttistable(o), &(o)->value.gc->h) | ||
| 100 | #define bvalue(o) check_exp(ttisboolean(o), (o)->value.b) | ||
| 101 | #define thvalue(o) check_exp(ttisthread(o), &(o)->value.gc->th) | ||
| 102 | |||
| 103 | #define l_isfalse(o) (ttisnil(o) || (ttisboolean(o) && bvalue(o) == 0)) | ||
| 104 | |||
| 105 | /* | ||
| 106 | ** for internal debug only | ||
| 107 | */ | ||
| 108 | #define checkconsistency(obj) \ | ||
| 109 | lua_assert(!iscollectable(obj) || (ttype(obj) == (obj)->value.gc->gch.tt)) | ||
| 110 | |||
| 111 | #define checkliveness(g,obj) \ | ||
| 112 | lua_assert(!iscollectable(obj) || \ | ||
| 113 | ((ttype(obj) == (obj)->value.gc->gch.tt) && !isdead(g, (obj)->value.gc))) | ||
| 114 | |||
| 115 | |||
| 116 | /* Macros to set values */ | ||
| 117 | #define setnilvalue(obj) ((obj)->tt=LUA_TNIL) | ||
| 118 | |||
| 119 | #define setnvalue(obj,x) \ | ||
| 120 | { TValue *i_o=(obj); i_o->value.n=(x); i_o->tt=LUA_TNUMBER; } | ||
| 121 | |||
| 122 | #define setpvalue(obj,x) \ | ||
| 123 | { TValue *i_o=(obj); i_o->value.p=(x); i_o->tt=LUA_TLIGHTUSERDATA; } | ||
| 124 | |||
| 125 | #define setbvalue(obj,x) \ | ||
| 126 | { TValue *i_o=(obj); i_o->value.b=(x); i_o->tt=LUA_TBOOLEAN; } | ||
| 127 | |||
| 128 | #define setsvalue(L,obj,x) \ | ||
| 129 | { TValue *i_o=(obj); \ | ||
| 130 | i_o->value.gc=cast(GCObject *, (x)); i_o->tt=LUA_TSTRING; \ | ||
| 131 | checkliveness(G(L),i_o); } | ||
| 132 | |||
| 133 | #define setuvalue(L,obj,x) \ | ||
| 134 | { TValue *i_o=(obj); \ | ||
| 135 | i_o->value.gc=cast(GCObject *, (x)); i_o->tt=LUA_TUSERDATA; \ | ||
| 136 | checkliveness(G(L),i_o); } | ||
| 137 | |||
| 138 | #define setthvalue(L,obj,x) \ | ||
| 139 | { TValue *i_o=(obj); \ | ||
| 140 | i_o->value.gc=cast(GCObject *, (x)); i_o->tt=LUA_TTHREAD; \ | ||
| 141 | checkliveness(G(L),i_o); } | ||
| 142 | |||
| 143 | #define setclvalue(L,obj,x) \ | ||
| 144 | { TValue *i_o=(obj); \ | ||
| 145 | i_o->value.gc=cast(GCObject *, (x)); i_o->tt=LUA_TFUNCTION; \ | ||
| 146 | checkliveness(G(L),i_o); } | ||
| 147 | |||
| 148 | #define sethvalue(L,obj,x) \ | ||
| 149 | { TValue *i_o=(obj); \ | ||
| 150 | i_o->value.gc=cast(GCObject *, (x)); i_o->tt=LUA_TTABLE; \ | ||
| 151 | checkliveness(G(L),i_o); } | ||
| 152 | |||
| 153 | #define setptvalue(L,obj,x) \ | ||
| 154 | { TValue *i_o=(obj); \ | ||
| 155 | i_o->value.gc=cast(GCObject *, (x)); i_o->tt=LUA_TPROTO; \ | ||
| 156 | checkliveness(G(L),i_o); } | ||
| 157 | |||
| 158 | |||
| 159 | |||
| 160 | |||
| 161 | #define setobj(L,obj1,obj2) \ | ||
| 162 | { const TValue *o2=(obj2); TValue *o1=(obj1); \ | ||
| 163 | o1->value = o2->value; o1->tt=o2->tt; \ | ||
| 164 | checkliveness(G(L),o1); } | ||
| 165 | |||
| 166 | |||
| 167 | /* | ||
| 168 | ** different types of sets, according to destination | ||
| 169 | */ | ||
| 170 | |||
| 171 | /* from stack to (same) stack */ | ||
| 172 | #define setobjs2s setobj | ||
| 173 | /* to stack (not from same stack) */ | ||
| 174 | #define setobj2s setobj | ||
| 175 | #define setsvalue2s setsvalue | ||
| 176 | #define sethvalue2s sethvalue | ||
| 177 | #define setptvalue2s setptvalue | ||
| 178 | /* from table to same table */ | ||
| 179 | #define setobjt2t setobj | ||
| 180 | /* to table */ | ||
| 181 | #define setobj2t setobj | ||
| 182 | /* to new object */ | ||
| 183 | #define setobj2n setobj | ||
| 184 | #define setsvalue2n setsvalue | ||
| 185 | |||
| 186 | #define setttype(obj, tt) (ttype(obj) = (tt)) | ||
| 187 | |||
| 188 | |||
| 189 | #define iscollectable(o) (ttype(o) >= LUA_TSTRING) | ||
| 190 | |||
| 191 | |||
| 192 | |||
| 193 | typedef TValue *StkId; /* index to stack elements */ | ||
| 194 | |||
| 195 | |||
| 196 | /* | ||
| 197 | ** String headers for string table | ||
| 198 | */ | ||
| 199 | typedef union TString { | ||
| 200 | L_Umaxalign dummy; /* ensures maximum alignment for strings */ | ||
| 201 | struct { | ||
| 202 | CommonHeader; | ||
| 203 | lu_byte reserved; | ||
| 204 | unsigned int hash; | ||
| 205 | size_t len; | ||
| 206 | } tsv; | ||
| 207 | } TString; | ||
| 208 | |||
| 209 | |||
| 210 | #define getstr(ts) cast(const char *, (ts) + 1) | ||
| 211 | #define svalue(o) getstr(rawtsvalue(o)) | ||
| 212 | |||
| 213 | |||
| 214 | |||
| 215 | typedef union Udata { | ||
| 216 | L_Umaxalign dummy; /* ensures maximum alignment for `local' udata */ | ||
| 217 | struct { | ||
| 218 | CommonHeader; | ||
| 219 | struct Table *metatable; | ||
| 220 | struct Table *env; | ||
| 221 | size_t len; | ||
| 222 | } uv; | ||
| 223 | } Udata; | ||
| 224 | |||
| 225 | |||
| 226 | |||
| 227 | |||
| 228 | /* | ||
| 229 | ** Function Prototypes | ||
| 230 | */ | ||
| 231 | typedef struct Proto { | ||
| 232 | CommonHeader; | ||
| 233 | TValue *k; /* constants used by the function */ | ||
| 234 | Instruction *code; | ||
| 235 | struct Proto **p; /* functions defined inside the function */ | ||
| 236 | int *lineinfo; /* map from opcodes to source lines */ | ||
| 237 | struct LocVar *locvars; /* information about local variables */ | ||
| 238 | TString **upvalues; /* upvalue names */ | ||
| 239 | TString *source; | ||
| 240 | int sizeupvalues; | ||
| 241 | int sizek; /* size of `k' */ | ||
| 242 | int sizecode; | ||
| 243 | int sizelineinfo; | ||
| 244 | int sizep; /* size of `p' */ | ||
| 245 | int sizelocvars; | ||
| 246 | int linedefined; | ||
| 247 | int lastlinedefined; | ||
| 248 | GCObject *gclist; | ||
| 249 | lu_byte nups; /* number of upvalues */ | ||
| 250 | lu_byte numparams; | ||
| 251 | lu_byte is_vararg; | ||
| 252 | lu_byte maxstacksize; | ||
| 253 | } Proto; | ||
| 254 | |||
| 255 | |||
| 256 | /* masks for new-style vararg */ | ||
| 257 | #define VARARG_HASARG 1 | ||
| 258 | #define VARARG_ISVARARG 2 | ||
| 259 | #define VARARG_NEEDSARG 4 | ||
| 260 | |||
| 261 | |||
| 262 | typedef struct LocVar { | ||
| 263 | TString *varname; | ||
| 264 | int startpc; /* first point where variable is active */ | ||
| 265 | int endpc; /* first point where variable is dead */ | ||
| 266 | } LocVar; | ||
| 267 | |||
| 268 | |||
| 269 | |||
| 270 | /* | ||
| 271 | ** Upvalues | ||
| 272 | */ | ||
| 273 | |||
| 274 | typedef struct UpVal { | ||
| 275 | CommonHeader; | ||
| 276 | TValue *v; /* points to stack or to its own value */ | ||
| 277 | union { | ||
| 278 | TValue value; /* the value (when closed) */ | ||
| 279 | struct { /* double linked list (when open) */ | ||
| 280 | struct UpVal *prev; | ||
| 281 | struct UpVal *next; | ||
| 282 | } l; | ||
| 283 | } u; | ||
| 284 | } UpVal; | ||
| 285 | |||
| 286 | |||
| 287 | /* | ||
| 288 | ** Closures | ||
| 289 | */ | ||
| 290 | |||
| 291 | #define ClosureHeader \ | ||
| 292 | CommonHeader; lu_byte isC; lu_byte nupvalues; GCObject *gclist; \ | ||
| 293 | struct Table *env | ||
| 294 | |||
| 295 | typedef struct CClosure { | ||
| 296 | ClosureHeader; | ||
| 297 | lua_CFunction f; | ||
| 298 | TValue upvalue[1]; | ||
| 299 | } CClosure; | ||
| 300 | |||
| 301 | |||
| 302 | typedef struct LClosure { | ||
| 303 | ClosureHeader; | ||
| 304 | struct Proto *p; | ||
| 305 | UpVal *upvals[1]; | ||
| 306 | } LClosure; | ||
| 307 | |||
| 308 | |||
| 309 | typedef union Closure { | ||
| 310 | CClosure c; | ||
| 311 | LClosure l; | ||
| 312 | } Closure; | ||
| 313 | |||
| 314 | |||
| 315 | #define iscfunction(o) (ttype(o) == LUA_TFUNCTION && clvalue(o)->c.isC) | ||
| 316 | #define isLfunction(o) (ttype(o) == LUA_TFUNCTION && !clvalue(o)->c.isC) | ||
| 317 | |||
| 318 | |||
| 319 | /* | ||
| 320 | ** Tables | ||
| 321 | */ | ||
| 322 | |||
| 323 | typedef union TKey { | ||
| 324 | struct { | ||
| 325 | TValuefields; | ||
| 326 | struct Node *next; /* for chaining */ | ||
| 327 | } nk; | ||
| 328 | TValue tvk; | ||
| 329 | } TKey; | ||
| 330 | |||
| 331 | |||
| 332 | typedef struct Node { | ||
| 333 | TValue i_val; | ||
| 334 | TKey i_key; | ||
| 335 | } Node; | ||
| 336 | |||
| 337 | |||
| 338 | typedef struct Table { | ||
| 339 | CommonHeader; | ||
| 340 | lu_byte flags; /* 1<<p means tagmethod(p) is not present */ | ||
| 341 | lu_byte lsizenode; /* log2 of size of `node' array */ | ||
| 342 | struct Table *metatable; | ||
| 343 | TValue *array; /* array part */ | ||
| 344 | Node *node; | ||
| 345 | Node *lastfree; /* any free position is before this position */ | ||
| 346 | GCObject *gclist; | ||
| 347 | int sizearray; /* size of `array' array */ | ||
| 348 | } Table; | ||
| 349 | |||
| 350 | |||
| 351 | |||
| 352 | /* | ||
| 353 | ** `module' operation for hashing (size is always a power of 2) | ||
| 354 | */ | ||
| 355 | #define lmod(s,size) \ | ||
| 356 | (check_exp((size&(size-1))==0, (cast(int, (s) & ((size)-1))))) | ||
| 357 | |||
| 358 | |||
| 359 | #define twoto(x) (1<<(x)) | ||
| 360 | #define sizenode(t) (twoto((t)->lsizenode)) | ||
| 361 | |||
| 362 | |||
| 363 | #define luaO_nilobject (&luaO_nilobject_) | ||
| 364 | |||
| 365 | LUAI_DATA const TValue luaO_nilobject_; | ||
| 366 | |||
| 367 | #define ceillog2(x) (luaO_log2((x)-1) + 1) | ||
| 368 | |||
| 369 | LUAI_FUNC int luaO_log2 (unsigned int x); | ||
| 370 | LUAI_FUNC int luaO_int2fb (unsigned int x); | ||
| 371 | LUAI_FUNC int luaO_fb2int (int x); | ||
| 372 | LUAI_FUNC int luaO_rawequalObj (const TValue *t1, const TValue *t2); | ||
| 373 | LUAI_FUNC int luaO_str2d (const char *s, lua_Number *result); | ||
| 374 | LUAI_FUNC const char *luaO_pushvfstring (lua_State *L, const char *fmt, | ||
| 375 | va_list argp); | ||
| 376 | LUAI_FUNC const char *luaO_pushfstring (lua_State *L, const char *fmt, ...); | ||
| 377 | LUAI_FUNC void luaO_chunkid (char *out, const char *source, size_t len); | ||
| 378 | |||
| 379 | |||
| 380 | #endif | ||
| 381 | |||
