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local ReceiverBase = require("core:erm.ReceiverBase")
local DO = ReceiverBase:new()
function DO:new(ERM, fun, start, stop, inc)
assert(fun and start and stop and inc, "!!DO requires 4 arguments")
return ReceiverBase.new(self,
{
ERM=ERM,
fun=fun,
start=start,
stop=stop,
inc=inc,
})
end
function DO:P(x, ...)
local argc = select('#', ...)
local newx = {}
local ret = {}
do
local __iter, limit, step = tonumber(self.start), tonumber(self.stop), tonumber(self.inc)
while (step > 0 and __iter <= limit) or (step <= 0 and __iter >= limit) do
for idx = 1, argc do
local v = select(idx, ...)
if v ~= nil then
newx[tostring(idx)] = v
end
end
newx['16'] = __iter
self.ERM:callFunction(self.fun, newx)
__iter = newx['16']
__iter = __iter + step
end
end
for idx = 1, argc do
local v = select(idx, ...)
if v == nil then
ret[idx] = newx[tostring(idx)]
else
ret[idx] = nil
end
end
return unpack(ret)
end
return DO
|
