#ifndef lobject_h
#define lobject_h
#include <stdarg.h>
#include "llimits.h"
#include "lua.h"
#define LUA_TPROTO LUA_NUMTAGS
#define LUA_TDEADKEY (LUA_NUMTAGS+1)
#define LUA_TOTALTAGS (LUA_TPROTO + 2)
#define LUA_TLCL (LUA_TFUNCTION | (0 << 4))
#define LUA_TLCF (LUA_TFUNCTION | (1 << 4))
#define LUA_TCCL (LUA_TFUNCTION | (2 << 4))
#define LUA_TSHRSTR (LUA_TSTRING | (0 << 4))
#define LUA_TLNGSTR (LUA_TSTRING | (1 << 4))
#define LUA_TNUMFLT (LUA_TNUMBER | (0 << 4))
#define LUA_TNUMINT (LUA_TNUMBER | (1 << 4))
#define BIT_ISCOLLECTABLE (1 << 6)
#define ctb(t) ((t) | BIT_ISCOLLECTABLE)
typedef struct GCObject GCObject;
#define CommonHeader GCObject *next; lu_byte tt; lu_byte marked
struct GCObject {
CommonHeader;
};
typedef union Value Value;
#define TValuefields Value value_; int tt_
typedef struct lua_TValue TValue;
#define NILCONSTANT {NULL}, LUA_TNIL
#define val_(o) ((o)->value_)
#define rttype(o) ((o)->tt_)
#define novariant(x) ((x) & 0x0F)
#define ttype(o) (rttype(o) & 0x3F)
#define ttnov(o) (novariant(rttype(o)))
#define checktag(o,t) (rttype(o) == (t))
#define checktype(o,t) (ttnov(o) == (t))
#define ttisnumber(o) checktype((o), LUA_TNUMBER)
#define ttisfloat(o) checktag((o), LUA_TNUMFLT)
#define ttisinteger(o) checktag((o), LUA_TNUMINT)
#define ttisnil(o) checktag((o), LUA_TNIL)
#define ttisboolean(o) checktag((o), LUA_TBOOLEAN)
#define ttislightuserdata(o) checktag((o), LUA_TLIGHTUSERDATA)
#define ttisstring(o) checktype((o), LUA_TSTRING)
#define ttisshrstring(o) checktag((o), ctb(LUA_TSHRSTR))
#define ttislngstring(o) checktag((o), ctb(LUA_TLNGSTR))
#define ttistable(o) checktag((o), ctb(LUA_TTABLE))
#define ttisfunction(o) checktype(o, LUA_TFUNCTION)
#define ttisclosure(o) ((rttype(o) & 0x1F) == LUA_TFUNCTION)
#define ttisCclosure(o) checktag((o), ctb(LUA_TCCL))
#define ttisLclosure(o) checktag((o), ctb(LUA_TLCL))
#define ttislcf(o) checktag((o), LUA_TLCF)
#define ttisfulluserdata(o) checktag((o), ctb(LUA_TUSERDATA))
#define ttisthread(o) checktag((o), ctb(LUA_TTHREAD))
#define ttisdeadkey(o) checktag((o), LUA_TDEADKEY)
#define ivalue(o) check_exp(ttisinteger(o), val_(o).i)
#define fltvalue(o) check_exp(ttisfloat(o), val_(o).n)
#define nvalue(o) check_exp(ttisnumber(o), \
(ttisinteger(o) ? cast_num(ivalue(o)) : fltvalue(o)))
#define gcvalue(o) check_exp(iscollectable(o), val_(o).gc)
#define pvalue(o) check_exp(ttislightuserdata(o), val_(o).p)
#define tsvalue(o) check_exp(ttisstring(o), gco2ts(val_(o).gc))
#define uvalue(o) check_exp(ttisfulluserdata(o), gco2u(val_(o).gc))
#define clvalue(o) check_exp(ttisclosure(o), gco2cl(val_(o).gc))
#define clLvalue(o) check_exp(ttisLclosure(o), gco2lcl(val_(o).gc))
#define clCvalue(o) check_exp(ttisCclosure(o), gco2ccl(val_(o).gc))
#define fvalue(o) check_exp(ttislcf(o), val_(o).f)
#define hvalue(o) check_exp(ttistable(o), gco2t(val_(o).gc))
#define bvalue(o) check_exp(ttisboolean(o), val_(o).b)
#define thvalue(o) check_exp(ttisthread(o), gco2th(val_(o).gc))
#define deadvalue(o) check_exp(ttisdeadkey(o), cast(void *, val_(o).gc))
#define l_isfalse(o) (ttisnil(o) || (ttisboolean(o) && bvalue(o) == 0))
#define iscollectable(o) (rttype(o) & BIT_ISCOLLECTABLE)
#define righttt(obj) (ttype(obj) == gcvalue(obj)->tt)
#define checkliveness(g,obj) \
lua_longassert(!iscollectable(obj) || \
(righttt(obj) && !isdead(g,gcvalue(obj))))
#define settt_(o,t) ((o)->tt_=(t))
#define setfltvalue(obj,x) \
{ TValue *io=(obj); val_(io).n=(x); settt_(io, LUA_TNUMFLT); }
#define chgfltvalue(obj,x) \
{ TValue *io=(obj); lua_assert(ttisfloat(io)); val_(io).n=(x); }
#define setivalue(obj,x) \
{ TValue *io=(obj); val_(io).i=(x); settt_(io, LUA_TNUMINT); }
#define chgivalue(obj,x) \
{ TValue *io=(obj); lua_assert(ttisinteger(io)); val_(io).i=(x); }
#define setnilvalue(obj) settt_(obj, LUA_TNIL)
#define setfvalue(obj,x) \
{ TValue *io=(obj); val_(io).f=(x); settt_(io, LUA_TLCF); }
#define setpvalue(obj,x) \
{ TValue *io=(obj); val_(io).p=(x); settt_(io, LUA_TLIGHTUSERDATA); }
#define setbvalue(obj,x) \
{ TValue *io=(obj); val_(io).b=(x); settt_(io, LUA_TBOOLEAN); }
#define setgcovalue(L,obj,x) \
{ TValue *io = (obj); GCObject *i_g=(x); \
val_(io).gc = i_g; settt_(io, ctb(i_g->tt)); }
#define setsvalue(L,obj,x) \
{ TValue *io = (obj); TString *x_ = (x); \
val_(io).gc = obj2gco(x_); settt_(io, ctb(x_->tt)); \
checkliveness(G(L),io); }
#define setuvalue(L,obj,x) \
{ TValue *io = (obj); Udata *x_ = (x); \
val_(io).gc = obj2gco(x_); settt_(io, ctb(LUA_TUSERDATA)); \
checkliveness(G(L),io); }
#define setthvalue(L,obj,x) \
{ TValue *io = (obj); lua_State *x_ = (x); \
val_(io).gc = obj2gco(x_); settt_(io, ctb(LUA_TTHREAD)); \
checkliveness(G(L),io); }
#define setclLvalue(L,obj,x) \
{ TValue *io = (obj); LClosure *x_ = (x); \
val_(io).gc = obj2gco(x_); settt_(io, ctb(LUA_TLCL)); \
checkliveness(G(L),io); }
#define setclCvalue(L,obj,x) \
{ TValue *io = (obj); CClosure *x_ = (x); \
val_(io).gc = obj2gco(x_); settt_(io, ctb(LUA_TCCL)); \
checkliveness(G(L),io); }
#define sethvalue(L,obj,x) \
{ TValue *io = (obj); Table *x_ = (x); \
val_(io).gc = obj2gco(x_); settt_(io, ctb(LUA_TTABLE)); \
checkliveness(G(L),io); }
#define setdeadvalue(obj) settt_(obj, LUA_TDEADKEY)
#define setobj(L,obj1,obj2) \
{ TValue *io1=(obj1); *io1 = *(obj2); \
(void)L; checkliveness(G(L),io1); }
#define setobjs2s setobj
#define setobj2s setobj
#define setsvalue2s setsvalue
#define sethvalue2s sethvalue
#define setptvalue2s setptvalue
#define setobjt2t setobj
#define setobj2t setobj
#define setobj2n setobj
#define setsvalue2n setsvalue
union Value {
GCObject *gc;
void *p;
int b;
lua_CFunction f;
lua_Integer i;
lua_Number n;
};
struct lua_TValue {
TValuefields;
};
typedef TValue *StkId;
typedef struct TString {
CommonHeader;
lu_byte extra;
lu_byte shrlen;
unsigned int hash;
union {
size_t lnglen;
struct TString *hnext;
} u;
} TString;
typedef union UTString {
L_Umaxalign dummy;
TString tsv;
} UTString;
#define getaddrstr(ts) (cast(char *, (ts)) + sizeof(UTString))
#define getstr(ts) \
check_exp(sizeof((ts)->extra), cast(const char*, getaddrstr(ts)))
#define svalue(o) getstr(tsvalue(o))
#define tsslen(s) ((s)->tt == LUA_TSHRSTR ? (s)->shrlen : (s)->u.lnglen)
#define vslen(o) tsslen(tsvalue(o))
typedef struct Udata {
CommonHeader;
lu_byte ttuv_;
struct Table *metatable;
size_t len;
union Value user_;
} Udata;
typedef union UUdata {
L_Umaxalign dummy;
Udata uv;
} UUdata;
#define getudatamem(u) \
check_exp(sizeof((u)->ttuv_), (cast(char*, (u)) + sizeof(UUdata)))
#define setuservalue(L,u,o) \
{ const TValue *io=(o); Udata *iu = (u); \
iu->user_ = io->value_; iu->ttuv_ = rttype(io); \
checkliveness(G(L),io); }
#define getuservalue(L,u,o) \
{ TValue *io=(o); const Udata *iu = (u); \
io->value_ = iu->user_; settt_(io, iu->ttuv_); \
checkliveness(G(L),io); }
typedef struct Upvaldesc {
TString *name;
lu_byte instack;
lu_byte idx;
} Upvaldesc;
typedef struct LocVar {
TString *varname;
int startpc;
int endpc;
} LocVar;
typedef struct Proto {
CommonHeader;
lu_byte numparams;
lu_byte is_vararg;
lu_byte maxstacksize;
int sizeupvalues;
int sizek;
int sizecode;
int sizelineinfo;
int sizep;
int sizelocvars;
int linedefined;
int lastlinedefined;
TValue *k;
Instruction *code;
struct Proto **p;
int *lineinfo;
LocVar *locvars;
Upvaldesc *upvalues;
struct LClosure *cache;
TString *source;
GCObject *gclist;
} Proto;
typedef struct UpVal UpVal;
#define ClosureHeader \
CommonHeader; lu_byte nupvalues; GCObject *gclist
typedef struct CClosure {
ClosureHeader;
lua_CFunction f;
TValue upvalue[1];
} CClosure;
typedef struct LClosure {
ClosureHeader;
struct Proto *p;
UpVal *upvals[1];
} LClosure;
typedef union Closure {
CClosure c;
LClosure l;
} Closure;
#define isLfunction(o) ttisLclosure(o)
#define getproto(o) (clLvalue(o)->p)
typedef union TKey {
struct {
TValuefields;
int next;
} nk;
TValue tvk;
} TKey;
#define setnodekey(L,key,obj) \
{ TKey *k_=(key); const TValue *io_=(obj); \
k_->nk.value_ = io_->value_; k_->nk.tt_ = io_->tt_; \
(void)L; checkliveness(G(L),io_); }
typedef struct Node {
TValue i_val;
TKey i_key;
} Node;
typedef struct Table {
CommonHeader;
lu_byte flags;
lu_byte lsizenode;
unsigned int sizearray;
TValue *array;
Node *node;
Node *lastfree;
struct Table *metatable;
GCObject *gclist;
} Table;
#define lmod(s,size) \
(check_exp((size&(size-1))==0, (cast(int, (s) & ((size)-1)))))
#define twoto(x) (1<<(x))
#define sizenode(t) (twoto((t)->lsizenode))
#define luaO_nilobject (&luaO_nilobject_)
LUAI_DDEC const TValue luaO_nilobject_;
#define UTF8BUFFSZ 8
LUAI_FUNC int luaO_int2fb (unsigned int x);
LUAI_FUNC int luaO_fb2int (int x);
LUAI_FUNC int luaO_utf8esc (char *buff, unsigned long x);
LUAI_FUNC int luaO_ceillog2 (unsigned int x);
LUAI_FUNC void luaO_arith (lua_State *L, int op, const TValue *p1,
const TValue *p2, TValue *res);
LUAI_FUNC size_t luaO_str2num (const char *s, TValue *o);
LUAI_FUNC int luaO_hexavalue (int c);
LUAI_FUNC void luaO_tostring (lua_State *L, StkId obj);
LUAI_FUNC const char *luaO_pushvfstring (lua_State *L, const char *fmt,
va_list argp);
LUAI_FUNC const char *luaO_pushfstring (lua_State *L, const char *fmt, ...);
LUAI_FUNC void luaO_chunkid (char *out, const char *source, size_t len);
#endif