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--[[
Copyright (c) 2012-2013 Kaarle Ritvanen
See LICENSE file for license details
--]]
local util = require('acf2.util')
local backend = require('acf2.object').class()
function backend:init(data) self.data = data or {} end
function backend:_get(path)
local res = self.data
for _, comp in ipairs(path) do
if res == nil then return end
assert(type(res) == 'table')
res = res[comp]
end
return res
end
function backend:get(path, top)
local res = self:_get(path)
return type(res) == 'table' and util.keys(res) or res
end
function backend:_set(path, value)
if type(value) == 'table' then value = {} end
if #path == 0 then self.data = value
else
local comps = util.copy(path)
local name = comps[#comps]
table.remove(comps)
self:_get(comps)[name] = value
end
end
function backend:set(mods)
for _, mod in ipairs(mods) do self:_set(unpack(mod)) end
end
return backend
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