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String buffers, part 4a: Add metatable serialization dictionary.

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Sponsored by fmad.io.
This commit is contained in:
Mike Pall
2021-08-12 21:10:13 +02:00
parent 983d66b8c5
commit 15ed84bd49
6 changed files with 116 additions and 41 deletions
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17
src/lib_buffer.c
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@@ -288,7 +288,7 @@ LJLIB_CF(buffer_new)
{
MSize sz = 0;
int targ = 1;
GCtab *env, *dict = NULL;
GCtab *env, *dict_str = NULL, *dict_mt = NULL;
GCudata *ud;
SBufExt *sbx;
if (L->base < L->top && !tvistab(L->base)) {
@@ -298,10 +298,16 @@ LJLIB_CF(buffer_new)
}
if (L->base+targ-1 < L->top) {
GCtab *options = lj_lib_checktab(L, targ);
cTValue *opt_dict = lj_tab_getstr(options, lj_str_newlit(L, "dict"));
cTValue *opt_dict, *opt_mt;
opt_dict = lj_tab_getstr(options, lj_str_newlit(L, "dict"));
if (opt_dict && tvistab(opt_dict)) {
dict = tabV(opt_dict);
lj_serialize_dict_prep(L, dict);
dict_str = tabV(opt_dict);
lj_serialize_dict_prep_str(L, dict_str);
}
opt_mt = lj_tab_getstr(options, lj_str_newlit(L, "metatable"));
if (opt_mt && tvistab(opt_mt)) {
dict_mt = tabV(opt_mt);
lj_serialize_dict_prep_mt(L, dict_mt);
}
}
env = tabref(curr_func(L)->c.env);
@@ -312,7 +318,8 @@ LJLIB_CF(buffer_new)
setudataV(L, L->top++, ud);
sbx = (SBufExt *)uddata(ud);
lj_bufx_init(L, sbx);
setgcref(sbx->dict, obj2gco(dict));
setgcref(sbx->dict_str, obj2gco(dict_str));
setgcref(sbx->dict_mt, obj2gco(dict_mt));
if (sz > 0) lj_buf_need2((SBuf *)sbx, sz);
return 1;
}