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Cloud Wu
2019-03-14 09:54:40 +08:00
parent 1d4308f33a
commit 3f38a711ad
8 changed files with 64 additions and 21 deletions
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36
3rd/lua/lapi.c
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@@ -1017,16 +1017,32 @@ static void cloneproto (lua_State *L, Proto *f, const Proto *src) {
/* copy constants and nested proto */
int i,n;
n = src->sp->sizek;
f->k=luaM_newvector(L,n,TValue);
for (i=0; i<n; i++) setnilvalue(&f->k[i]);
for (i=0; i<n; i++) {
const TValue *s=&src->k[i];
TValue *o=&f->k[i];
if (ttisstring(s)) {
TString * str = luaS_clonestring(L,tsvalue(s));
setsvalue2n(L,o,str);
} else {
setobj(L,o,s);
if (src->sp->sharedk)
f->k = src->sp->k;
else {
lu_byte sharedk = 1;
f->k=luaM_newvector(L,n,TValue);
for (i=0; i<n; i++) setnilvalue(&f->k[i]);
for (i=0; i<n; i++) {
const TValue *s=&src->k[i];
TValue *o=&f->k[i];
if (ttisstring(s)) {
TString * sstr = tsvalue(s);
if (ttisshrstring(s)) {
TString * str = luaS_clonestring(L,sstr);
setsvalue2n(L,o,str);
if (str != sstr)
sharedk = 0;
} else {
setsvalue2n(L,o,sstr);
}
} else {
setobj(L,o,s);
}
}
if (sharedk) {
luaM_freearray(L, f->k, n);
f->k = src->sp->k;
}
}
n = src->sp->sizep;