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'luaH_get' functions return tag of the result

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Undoing previous commit. Returning TValue increases code size without
any visible gains. Returning the tag is a little simpler than returning
a special code (HOK/HNOTFOUND) and the tag is useful by itself in
some cases.
This commit is contained in:
Roberto Ierusalimschy
2024-03-21 11:23:21 -03:00
parent ce6f5502c9
commit 0593256707
10 changed files with 139 additions and 133 deletions
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18
lvm.h
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@@ -78,19 +78,17 @@ typedef enum {
/*
** fast track for 'gettable'
*/
#define luaV_fastget(t,k,res,f, aux) \
{if (!ttistable(t)) setnotableV(aux); \
else { aux = f(hvalue(t), k); \
if (!isemptyV(aux)) { setobjV(cast(lua_State*, NULL), res, aux); } } }
#define luaV_fastget(t,k,res,f, tag) \
(tag = (!ttistable(t) ? LUA_VNOTABLE : f(hvalue(t), k, res)))
/*
** Special case of 'luaV_fastget' for integers, inlining the fast case
** of 'luaH_getint'.
*/
#define luaV_fastgeti(t,k,res,aux) \
{ if (!ttistable(t)) setnotableV(aux); \
else { luaH_fastgeti(hvalue(t), k, res, aux); } }
#define luaV_fastgeti(t,k,res,tag) \
if (!ttistable(t)) tag = LUA_VNOTABLE; \
else { luaH_fastgeti(hvalue(t), k, res, tag); }
#define luaV_fastset(t,k,val,hres,f) \
@@ -122,10 +120,8 @@ LUAI_FUNC int luaV_tointeger (const TValue *obj, lua_Integer *p, F2Imod mode);
LUAI_FUNC int luaV_tointegerns (const TValue *obj, lua_Integer *p,
F2Imod mode);
LUAI_FUNC int luaV_flttointeger (lua_Number n, lua_Integer *p, F2Imod mode);
#define luaV_finishget(L,t,key,val,aux) \
luaV_finishget_(L,t,key,val,ttypetagV(aux))
LUAI_FUNC void luaV_finishget_ (lua_State *L, const TValue *t, TValue *key,
StkId val, int tag);
LUAI_FUNC int luaV_finishget (lua_State *L, const TValue *t, TValue *key,
StkId val, int tag);
LUAI_FUNC void luaV_finishset (lua_State *L, const TValue *t, TValue *key,
TValue *val, int aux);
LUAI_FUNC void luaV_finishOp (lua_State *L);