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Diffstat (limited to '3rdparty/lua/src/lobject.h')
| -rw-r--r-- | 3rdparty/lua/src/lobject.h | 549 |
1 files changed, 0 insertions, 549 deletions
diff --git a/3rdparty/lua/src/lobject.h b/3rdparty/lua/src/lobject.h deleted file mode 100644 index 3c04228..0000000 --- a/3rdparty/lua/src/lobject.h +++ /dev/null @@ -1,549 +0,0 @@ -/* -** $Id: lobject.h,v 2.117 2016/08/01 19:51:24 roberto Exp $ -** Type definitions for Lua objects -** See Copyright Notice in lua.h -*/ - - -#ifndef lobject_h -#define lobject_h - - -#include <stdarg.h> - - -#include "llimits.h" -#include "lua.h" - - -/* -** Extra tags for non-values -*/ -#define LUA_TPROTO LUA_NUMTAGS /* function prototypes */ -#define LUA_TDEADKEY (LUA_NUMTAGS+1) /* removed keys in tables */ - -/* -** number of all possible tags (including LUA_TNONE but excluding DEADKEY) -*/ -#define LUA_TOTALTAGS (LUA_TPROTO + 2) - - -/* -** tags for Tagged Values have the following use of bits: -** bits 0-3: actual tag (a LUA_T* value) -** bits 4-5: variant bits -** bit 6: whether value is collectable -*/ - - -/* -** LUA_TFUNCTION variants: -** 0 - Lua function -** 1 - light C function -** 2 - regular C function (closure) -*/ - -/* Variant tags for functions */ -#define LUA_TLCL (LUA_TFUNCTION | (0 << 4)) /* Lua closure */ -#define LUA_TLCF (LUA_TFUNCTION | (1 << 4)) /* light C function */ -#define LUA_TCCL (LUA_TFUNCTION | (2 << 4)) /* C closure */ - - -/* Variant tags for strings */ -#define LUA_TSHRSTR (LUA_TSTRING | (0 << 4)) /* short strings */ -#define LUA_TLNGSTR (LUA_TSTRING | (1 << 4)) /* long strings */ - - -/* Variant tags for numbers */ -#define LUA_TNUMFLT (LUA_TNUMBER | (0 << 4)) /* float numbers */ -#define LUA_TNUMINT (LUA_TNUMBER | (1 << 4)) /* integer numbers */ - - -/* Bit mark for collectable types */ -#define BIT_ISCOLLECTABLE (1 << 6) - -/* mark a tag as collectable */ -#define ctb(t) ((t) | BIT_ISCOLLECTABLE) - - -/* -** Common type for all collectable objects -*/ -typedef struct GCObject GCObject; - - -/* -** Common Header for all collectable objects (in macro form, to be -** included in other objects) -*/ -#define CommonHeader GCObject *next; lu_byte tt; lu_byte marked - - -/* -** Common type has only the common header -*/ -struct GCObject { - CommonHeader; -}; - - - - -/* -** Tagged Values. This is the basic representation of values in Lua, -** an actual value plus a tag with its type. -*/ - -/* -** Union of all Lua values -*/ -typedef union Value { - GCObject *gc; /* collectable objects */ - void *p; /* light userdata */ - int b; /* booleans */ - lua_CFunction f; /* light C functions */ - lua_Integer i; /* integer numbers */ - lua_Number n; /* float numbers */ -} Value; - - -#define TValuefields Value value_; int tt_ - - -typedef struct lua_TValue { - TValuefields; -} TValue; - - - -/* macro defining a nil value */ -#define NILCONSTANT {NULL}, LUA_TNIL - - -#define val_(o) ((o)->value_) - - -/* raw type tag of a TValue */ -#define rttype(o) ((o)->tt_) - -/* tag with no variants (bits 0-3) */ -#define novariant(x) ((x) & 0x0F) - -/* type tag of a TValue (bits 0-3 for tags + variant bits 4-5) */ -#define ttype(o) (rttype(o) & 0x3F) - -/* type tag of a TValue with no variants (bits 0-3) */ -#define ttnov(o) (novariant(rttype(o))) - - -/* Macros to test type */ -#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) - - -/* Macros to access values */ -#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)) -/* a dead value may get the 'gc' field, but cannot access its contents */ -#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) - - -/* Macros for internal tests */ -#define righttt(obj) (ttype(obj) == gcvalue(obj)->tt) - -#define checkliveness(L,obj) \ - lua_longassert(!iscollectable(obj) || \ - (righttt(obj) && (L == NULL || !isdead(G(L),gcvalue(obj))))) - - -/* Macros to set values */ -#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(L,io); } - -#define setuvalue(L,obj,x) \ - { TValue *io = (obj); Udata *x_ = (x); \ - val_(io).gc = obj2gco(x_); settt_(io, ctb(LUA_TUSERDATA)); \ - checkliveness(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(L,io); } - -#define setclLvalue(L,obj,x) \ - { TValue *io = (obj); LClosure *x_ = (x); \ - val_(io).gc = obj2gco(x_); settt_(io, ctb(LUA_TLCL)); \ - checkliveness(L,io); } - -#define setclCvalue(L,obj,x) \ - { TValue *io = (obj); CClosure *x_ = (x); \ - val_(io).gc = obj2gco(x_); settt_(io, ctb(LUA_TCCL)); \ - checkliveness(L,io); } - -#define sethvalue(L,obj,x) \ - { TValue *io = (obj); Table *x_ = (x); \ - val_(io).gc = obj2gco(x_); settt_(io, ctb(LUA_TTABLE)); \ - checkliveness(L,io); } - -#define setdeadvalue(obj) settt_(obj, LUA_TDEADKEY) - - - -#define setobj(L,obj1,obj2) \ - { TValue *io1=(obj1); *io1 = *(obj2); \ - (void)L; checkliveness(L,io1); } - - -/* -** different types of assignments, according to destination -*/ - -/* from stack to (same) stack */ -#define setobjs2s setobj -/* to stack (not from same stack) */ -#define setobj2s setobj -#define setsvalue2s setsvalue -#define sethvalue2s sethvalue -#define setptvalue2s setptvalue -/* from table to same table */ -#define setobjt2t setobj -/* to new object */ -#define setobj2n setobj -#define setsvalue2n setsvalue - -/* to table (define it as an expression to be used in macros) */ -#define setobj2t(L,o1,o2) ((void)L, *(o1)=*(o2), checkliveness(L,(o1))) - - - - -/* -** {====================================================== -** types and prototypes -** ======================================================= -*/ - - -typedef TValue *StkId; /* index to stack elements */ - - - - -/* -** Header for string value; string bytes follow the end of this structure -** (aligned according to 'UTString'; see next). -*/ -typedef struct TString { - CommonHeader; - lu_byte extra; /* reserved words for short strings; "has hash" for longs */ - lu_byte shrlen; /* length for short strings */ - unsigned int hash; - union { - size_t lnglen; /* length for long strings */ - struct TString *hnext; /* linked list for hash table */ - } u; -} TString; - - -/* -** Ensures that address after this type is always fully aligned. -*/ -typedef union UTString { - L_Umaxalign dummy; /* ensures maximum alignment for strings */ - TString tsv; -} UTString; - - -/* -** Get the actual string (array of bytes) from a 'TString'. -** (Access to 'extra' ensures that value is really a 'TString'.) -*/ -#define getstr(ts) \ - check_exp(sizeof((ts)->extra), cast(char *, (ts)) + sizeof(UTString)) - - -/* get the actual string (array of bytes) from a Lua value */ -#define svalue(o) getstr(tsvalue(o)) - -/* get string length from 'TString *s' */ -#define tsslen(s) ((s)->tt == LUA_TSHRSTR ? (s)->shrlen : (s)->u.lnglen) - -/* get string length from 'TValue *o' */ -#define vslen(o) tsslen(tsvalue(o)) - - -/* -** Header for userdata; memory area follows the end of this structure -** (aligned according to 'UUdata'; see next). -*/ -typedef struct Udata { - CommonHeader; - lu_byte ttuv_; /* user value's tag */ - struct Table *metatable; - size_t len; /* number of bytes */ - union Value user_; /* user value */ -} Udata; - - -/* -** Ensures that address after this type is always fully aligned. -*/ -typedef union UUdata { - L_Umaxalign dummy; /* ensures maximum alignment for 'local' udata */ - Udata uv; -} UUdata; - - -/* -** Get the address of memory block inside 'Udata'. -** (Access to 'ttuv_' ensures that value is really a 'Udata'.) -*/ -#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(L,io); } - - -#define getuservalue(L,u,o) \ - { TValue *io=(o); const Udata *iu = (u); \ - io->value_ = iu->user_; settt_(io, iu->ttuv_); \ - checkliveness(L,io); } - - -/* -** Description of an upvalue for function prototypes -*/ -typedef struct Upvaldesc { - TString *name; /* upvalue name (for debug information) */ - lu_byte instack; /* whether it is in stack (register) */ - lu_byte idx; /* index of upvalue (in stack or in outer function's list) */ -} Upvaldesc; - - -/* -** Description of a local variable for function prototypes -** (used for debug information) -*/ -typedef struct LocVar { - TString *varname; - int startpc; /* first point where variable is active */ - int endpc; /* first point where variable is dead */ -} LocVar; - - -/* -** Function Prototypes -*/ -typedef struct Proto { - CommonHeader; - lu_byte numparams; /* number of fixed parameters */ - lu_byte is_vararg; - lu_byte maxstacksize; /* number of registers needed by this function */ - int sizeupvalues; /* size of 'upvalues' */ - int sizek; /* size of 'k' */ - int sizecode; - int sizelineinfo; - int sizep; /* size of 'p' */ - int sizelocvars; - int linedefined; /* debug information */ - int lastlinedefined; /* debug information */ - TValue *k; /* constants used by the function */ - Instruction *code; /* opcodes */ - struct Proto **p; /* functions defined inside the function */ - int *lineinfo; /* map from opcodes to source lines (debug information) */ - LocVar *locvars; /* information about local variables (debug information) */ - Upvaldesc *upvalues; /* upvalue information */ - struct LClosure *cache; /* last-created closure with this prototype */ - TString *source; /* used for debug information */ - GCObject *gclist; -} Proto; - - - -/* -** Lua Upvalues -*/ -typedef struct UpVal UpVal; - - -/* -** Closures -*/ - -#define ClosureHeader \ - CommonHeader; lu_byte nupvalues; GCObject *gclist - -typedef struct CClosure { - ClosureHeader; - lua_CFunction f; - TValue upvalue[1]; /* list of upvalues */ -} CClosure; - - -typedef struct LClosure { - ClosureHeader; - struct Proto *p; - UpVal *upvals[1]; /* list of upvalues */ -} LClosure; - - -typedef union Closure { - CClosure c; - LClosure l; -} Closure; - - -#define isLfunction(o) ttisLclosure(o) - -#define getproto(o) (clLvalue(o)->p) - - -/* -** Tables -*/ - -typedef union TKey { - struct { - TValuefields; - int next; /* for chaining (offset for next node) */ - } nk; - TValue tvk; -} TKey; - - -/* copy a value into a key without messing up field 'next' */ -#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(L,io_); } - - -typedef struct Node { - TValue i_val; - TKey i_key; -} Node; - - -typedef struct Table { - CommonHeader; - lu_byte flags; /* 1<<p means tagmethod(p) is not present */ - lu_byte lsizenode; /* log2 of size of 'node' array */ - unsigned int sizearray; /* size of 'array' array */ - TValue *array; /* array part */ - Node *node; - Node *lastfree; /* any free position is before this position */ - struct Table *metatable; - GCObject *gclist; -} Table; - - - -/* -** 'module' operation for hashing (size is always a power of 2) -*/ -#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)) - - -/* -** (address of) a fixed nil value -*/ -#define luaO_nilobject (&luaO_nilobject_) - - -LUAI_DDEC const TValue luaO_nilobject_; - -/* size of buffer for 'luaO_utf8esc' function */ -#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 - |