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Clearer distinction between types and tags

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LUA_T* represents only types; tags (types + Variants) are represented
by LUA_V* constants.
This commit is contained in:
Roberto Ierusalimschy
2020-01-31 11:09:53 -03:00
parent 69c7139ff8
commit 46c3587a6f
22 changed files with 231 additions and 213 deletions
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10
lstring.c
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@@ -43,7 +43,7 @@
*/
int luaS_eqlngstr (TString *a, TString *b) {
size_t len = a->u.lnglen;
lua_assert(a->tt == LUA_TLNGSTR && b->tt == LUA_TLNGSTR);
lua_assert(a->tt == LUA_VLNGSTR && b->tt == LUA_VLNGSTR);
return (a == b) || /* same instance or... */
((len == b->u.lnglen) && /* equal length and ... */
(memcmp(getstr(a), getstr(b), len) == 0)); /* equal contents */
@@ -60,7 +60,7 @@ unsigned int luaS_hash (const char *str, size_t l, unsigned int seed) {
unsigned int luaS_hashlongstr (TString *ts) {
lua_assert(ts->tt == LUA_TLNGSTR);
lua_assert(ts->tt == LUA_VLNGSTR);
if (ts->extra == 0) { /* no hash? */
ts->hash = luaS_hash(getstr(ts), ts->u.lnglen, ts->hash);
ts->extra = 1; /* now it has its hash */
@@ -165,7 +165,7 @@ static TString *createstrobj (lua_State *L, size_t l, int tag, unsigned int h) {
TString *luaS_createlngstrobj (lua_State *L, size_t l) {
TString *ts = createstrobj(L, l, LUA_TLNGSTR, G(L)->seed);
TString *ts = createstrobj(L, l, LUA_VLNGSTR, G(L)->seed);
ts->u.lnglen = l;
return ts;
}
@@ -215,7 +215,7 @@ static TString *internshrstr (lua_State *L, const char *str, size_t l) {
growstrtab(L, tb);
list = &tb->hash[lmod(h, tb->size)]; /* rehash with new size */
}
ts = createstrobj(L, l, LUA_TSHRSTR, h);
ts = createstrobj(L, l, LUA_VSHRSTR, h);
memcpy(getstr(ts), str, l * sizeof(char));
ts->shrlen = cast_byte(l);
ts->u.hnext = *list;
@@ -271,7 +271,7 @@ Udata *luaS_newudata (lua_State *L, size_t s, int nuvalue) {
GCObject *o;
if (unlikely(s > MAX_SIZE - udatamemoffset(nuvalue)))
luaM_toobig(L);
o = luaC_newobj(L, LUA_TUSERDATA, sizeudata(nuvalue, s));
o = luaC_newobj(L, LUA_VUSERDATA, sizeudata(nuvalue, s));
u = gco2u(o);
u->len = s;
u->nuvalue = nuvalue;