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detail in macro 'checkliveness' + macro 'setobj2t' defined as an

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expression (to be used in macro 'luaV_fastset')
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Roberto Ierusalimschy 2015-09-08 13:54:52 -03:00
parent 1198d82530
commit eb0be12ceb
1 changed files with 16 additions and 15 deletions
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31
lobject.h
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@ -1,5 +1,5 @@
/*
** $Id: lobject.h,v 2.111 2015/06/09 14:21:42 roberto Exp roberto $
** $Id: lobject.h,v 2.112 2015/09/08 15:49:25 roberto Exp roberto $
** Type definitions for Lua objects
** See Copyright Notice in lua.h
*/
@ -187,9 +187,9 @@ typedef struct lua_TValue {
/* Macros for internal tests */
#define righttt(obj) (ttype(obj) == gcvalue(obj)->tt)
#define checkliveness(g,obj) \
#define checkliveness(L,obj) \
lua_longassert(!iscollectable(obj) || \
(righttt(obj) && !isdead(g,gcvalue(obj))))
(righttt(obj) && !isdead(G(L),gcvalue(obj))))
/* Macros to set values */
@ -225,32 +225,32 @@ typedef struct lua_TValue {
#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); }
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(G(L),io); }
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(G(L),io); }
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(G(L),io); }
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(G(L),io); }
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(G(L),io); }
checkliveness(L,io); }
#define setdeadvalue(obj) settt_(obj, LUA_TDEADKEY)
@ -258,7 +258,7 @@ typedef struct lua_TValue {
#define setobj(L,obj1,obj2) \
{ TValue *io1=(obj1); *io1 = *(obj2); \
(void)L; checkliveness(G(L),io1); }
(void)L; checkliveness(L,io1); }
/*
@ -274,12 +274,13 @@ typedef struct lua_TValue {
#define setptvalue2s setptvalue
/* from table to same table */
#define setobjt2t setobj
/* to table */
#define setobj2t 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)))
@ -370,13 +371,13 @@ typedef union 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); }
checkliveness(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); }
checkliveness(L,io); }
/*
@ -484,7 +485,7 @@ typedef union 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_); }
(void)L; checkliveness(L,io_); }
typedef struct Node {