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local util = require 'utility'
---@class vm.node.global.link
---@field gets parser.object[]
---@field sets parser.object[]
---@class vm.node.global
---@field links table<uri, vm.node.global.link>
---@field setsCache parser.object[]
---@field getsCache parser.object[]
---@field cate vm.global.cate
local mt = {}
mt.__index = mt
mt.type = 'global'
mt.name = ''
---@param uri uri
---@param source parser.object
function mt:addSet(uri, source)
local link = self.links[uri]
link.sets[#link.sets+1] = source
end
---@param uri uri
---@param source parser.object
function mt:addGet(uri, source)
local link = self.links[uri]
link.gets[#link.gets+1] = source
end
---@return parser.object[]
function mt:getSets()
if not self.setsCache then
self.setsCache = {}
for _, link in pairs(self.links) do
for _, source in ipairs(link.sets) do
self.setsCache[#self.setsCache+1] = source
end
end
end
return self.setsCache
end
---@return parser.object[]
function mt:getGets()
if not self.getsCache then
self.getsCache = {}
for _, link in pairs(self.links) do
for _, source in ipairs(link.gets) do
self.getsCache[#self.getsCache+1] = source
end
end
end
return self.getsCache
end
---@param uri uri
function mt:dropUri(uri)
self.links[uri] = nil
self.setsCache = nil
self.getsCache = nil
end
---@return string
function mt:getName()
return self.name
end
---@return boolean
function mt:isAlive()
return next(self.links) ~= nil
end
---@param cate vm.global.cate
---@return vm.node.global
return function (name, cate)
return setmetatable({
name = name,
cate = cate,
links = util.defaultTable(function ()
return {
sets = {},
gets = {},
}
end),
}, mt)
end
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