33 lines
598 B
Text
33 lines
598 B
Text
|
--[[
|
||
|
|
Simple signal/slot implementation
|
||
|
|
]]
|
||
|
|
local signal_mt = {
|
||
|
|
__index = {
|
||
|
|
register = table.insert
|
||
|
|
}
|
||
|
|
}
|
||
|
|
function signal_mt.__index:emit(... --[[ Comment in params ]])
|
||
|
|
for _, slot in ipairs(self) do
|
||
|
|
slot(self, ...)
|
||
|
|
end
|
||
|
|
end
|
||
|
|
local function create_signal()
|
||
|
|
return setmetatable({}, signal_mt)
|
||
|
|
end
|
||
|
|
|
||
|
|
-- Signal test
|
||
|
|
local signal = create_signal()
|
||
|
|
signal:register(function(signal, ...)
|
||
|
|
print(...)
|
||
|
|
end)
|
||
|
|
signal:emit('Answer to Life, the Universe, and Everything:', 42)
|
||
|
|
|
||
|
|
--[==[ [=[ [[
|
||
|
|
Nested ]]
|
||
|
|
multi-line ]=]
|
||
|
|
comment ]==]
|
||
|
|
[==[ Nested
|
||
|
|
[=[ multi-line
|
||
|
|
[[ string
|
||
|
|
]] ]=] ]==]
|