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add fallback implementation for fifo_queue.add_list() in case table.move() is missing

This commit is contained in:
binarycat 2023-12-19 15:04:02 -05:00
parent 79214b5c71
commit ab2df3caf3
1 changed files with 13 additions and 4 deletions
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17
mesecons/fifo_queue.lua
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@ -20,10 +20,19 @@ function fifo_queue.add(self, v)
self.buf_in[n] = v
end
-- add several elements to the queue
function fifo_queue.add_list(self, v)
table.move(v, 1, #v, self.n_in + 1, self.buf_in)
self.n_in = self.n_in + #v
-- table.move is not available in some lua versions, provide a fallback implementaion
if table.move ~= nil then
-- add several elements to the queue
function fifo_queue.add_list(self, v)
table.move(v, 1, #v, self.n_in + 1, self.buf_in)
self.n_in = self.n_in + #v
end
else
function fifo_queue.add_list(self, v)
for _, elem in ipairs(v) do
self:add(elem)
end
end
end
-- removes and returns the next element, or nil of empty
function fifo_queue.take(self)