1092行上下文是什么

jinggencard = sgs.CreateSkillCard{
name = "jinggencard",
target_fixed = false,
will_throw = false,
filter = function(self, targets, to_select)
return #targets == 0 and (not to_select:isKongcheng()) and to_select:objectName() ~= sgs.Self:objectName()
end,
on_use = function(self, room, source, targets)
local target = targets[1]
local success = source:pindian(target, "jinggen", nil)
if success then
local slash = sgs.Sanguosha:cloneCard("slash", sgs.Card_NoSuit, 0)
slash:setSkillName("jinggen")
local card_use = sgs.CardUseStruct()
card_use.card = slash
card_use.from = source
card_use.to:append(target)
room:useCard(card_use, false)
else
if not source:isKongcheng() then
local card_id = room:askForCardChosen(target, source, "h", self:objectName())
room:obtainCard(target, card_id)
end
end
end
}