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-- late-resolve cyclic dependencies
--
-- this module provides a proxy for resolving values from modules which cannot
-- be loaded due to cyclic dependencies. Instead of
--
-- import Something from require 'alv.somewhere'
-- Something ...
--
-- use
--
-- import somewhere from require 'alv.cycle'
-- somewhere.Something ...
--
-- Make sure cycle:resolve() is called before you access or dereference
-- `somewhere`.
unresolved = {}
resolve = =>
for name, module in pairs unresolved
for k, v in pairs require "alv.#{name}"
module[k] = v
unresolved = {}
setmetatable {}, __index: (key) =>
return resolve if key == 'resolve'
with v = {}
rawset unresolved, key, v
rawset @, key, v
|
