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PROXYCACHE key weak

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Cloud Wu
2017-06-05 19:59:17 +08:00
parent a8b5b36737
commit 7a4189f830
1 changed files with 11 additions and 10 deletions
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21
lualib-src/lua-datasheet.c
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@@ -313,23 +313,24 @@ llen(lua_State *L) {
}
static void
gen_metatable(lua_State *L) {
new_weak_table(lua_State *L, const char *mode) {
lua_newtable(L); // NODECACHE { pointer:table }
lua_createtable(L, 0, 1); // weak meta table
lua_pushstring(L, "kv");
lua_pushstring(L, mode);
lua_setfield(L, -2, "__mode");
lua_newtable(L); // NODECACHE
lua_pushvalue(L, -2);
lua_setmetatable(L, -2); // make NODECACGE weak
lua_setmetatable(L, -2); // make NODECACHE weak
}
static void
gen_metatable(lua_State *L) {
new_weak_table(L, "kv"); // NODECACHE { pointer:table }
lua_setfield(L, LUA_REGISTRYINDEX, NODECACHE);
lua_newtable(L); // PROXYCACHE
lua_pushvalue(L, -2);
lua_setmetatable(L, -2); // make NODECACGE weak
new_weak_table(L, "k"); // PROXYCACHE { table:userdata }
lua_setfield(L, LUA_REGISTRYINDEX, PROXYCACHE);
lua_pop(L, 1); // pop weak meta
lua_newtable(L);
lua_setfield(L, LUA_REGISTRYINDEX, TABLES);