/** Pack an entire setting description into the buffer
*/
static int packSetting(unsigned char *pBuffer, int index, int size, SettingDescription &setting) {
if (index>=size)
return 0;
// 1 byte for type
pBuffer[index++] = setting.typeAndModifier;
// The name
if ((index=packString(pBuffer, index, size, setting.name))<=0)
return index;
// And the value itself
switch(setting.typeAndModifier & SETTING_TYPE_MASK) {
case StringSetting:
index = packString(pBuffer, index, size, setting.value.string);
break;
case IntegerSetting:
index = packInteger(pBuffer, index, size, setting.value.integer);
break;
case BooleanSetting:
index = packBoolean(pBuffer, index, size, setting.value.boolean);
break;
case NumberSetting:
index = packDouble(pBuffer, index, size, setting.value.number);
break;
default:
index = 0;
}
return index;
}
void pack(Packer& pk, int index) const {
int t = lua_type(L, index);
switch (t) {
case LUA_TNUMBER: packNumber(pk, index); break;
case LUA_TBOOLEAN: packBoolean(pk, index); break;
case LUA_TSTRING: packString(pk, index); break;
case LUA_TTABLE: packTable(pk, index); break;
case LUA_TUSERDATA:
// TODO: support userdata serialization.
// Calling __serialize meta-method may be good.
// raise an error temporally
luaL_error(L, "Packing userdata has not been supported yet. "
"However, it will be implemented soon.");
return;
case LUA_TNIL:
case LUA_TTHREAD:
case LUA_TLIGHTUSERDATA:
default:
luaL_error(L, "invalid type for pack: %s",
lua_typename(L, t));
break;
}
}
