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---@class file
local mt = {}
mt.__index = mt
mt.type = 'file'
mt._uri = ''
mt._text = ''
mt._version = -1
---@param buf string
function mt:setText(buf)
self._text = buf
end
---@return string
function mt:getText()
return self._text
end
---@param version integer
function mt:setVersion(version)
self._version = version
end
---@return integer
function mt:getVersion()
return self._version
end
function mt:remove()
if self._removed then
return
end
self._removed = true
self._text = nil
self._version = nil
if self._vm then
self._vm:remove()
end
end
---@param vm VM
function mt:saveVM(vm)
self._vm = vm
end
---@return VM
function mt:getVM()
return self._vm
end
function mt:removeVM()
if not self._vm then
return
end
self._vm:remove()
self._vm = nil
end
---@return file
function mt:getParent()
return self._parent
end
---@param uri uri
function mt:removeChild(uri)
self._child[uri] = nil
end
---@param uri uri
function mt:removeParent(uri)
self._parent[uri] = nil
end
function mt:eachChild()
return pairs(self._child)
end
function mt:eachParent()
return pairs(self._parent)
end
---@param uri string
return function (uri)
local self = setmetatable({
_uri = uri,
_parent = {},
_child = {},
}, mt)
return self
end
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