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local files = require 'files'
local localMgr = require 'vm.local-manager'
---@class vm
local vm = require 'vm.vm'
---@type table<vm.object, vm.node>
vm.nodeCache = {}
---@class vm.node
local mt = {}
mt.__index = mt
mt.type = 'vm.node'
mt.optional = nil
mt.lastInfer = nil
mt.data = nil
---@type vm.node[]
mt._childs = nil
mt._locked = false
---@param node vm.node | vm.object
function mt:merge(node)
if not node then
return
end
if node.type == 'vm.node' then
if node == self then
return
end
if node:isOptional() then
self.optional = true
end
if node._locked then
if not self._childs then
self._childs = {}
end
if not self._childs[node] then
self._childs[#self._childs+1] = node
self._childs[node] = true
end
else
for _, obj in ipairs(node) do
if not self[obj] then
self[obj] = true
self[#self+1] = obj
end
end
end
else
if not self[node] then
self[node] = true
self[#self+1] = node
end
end
end
function mt:_each(mark, callback)
if mark[self] then
return
end
mark[self] = true
for i = 1, #self do
callback(self[i])
end
local childs = self._childs
if not childs then
return
end
for i = 1, #childs do
local child = childs[i]
if not child:isLocked() then
child:_each(mark, callback)
end
end
end
function mt:_expand()
local childs = self._childs
if not childs then
return
end
self._childs = nil
local mark = {}
mark[self] = true
local function insert(obj)
if not self[obj] then
self[obj] = true
self[#self+1] = obj
end
end
for i = 1, #childs do
local child = childs[i]
if child:isLocked() then
if not self._childs then
self._childs = {}
end
if not self._childs[child] then
self._childs[#self._childs+1] = child
self._childs[child] = true
end
else
child:_each(mark, insert)
end
end
end
---@return boolean
function mt:isEmpty()
self:_expand()
return #self == 0
end
---@param n integer
---@return vm.object?
function mt:get(n)
self:_expand()
return self[n]
end
function mt:lock()
self._locked = true
end
function mt:unlock()
self._locked = false
end
function mt:isLocked()
return self._locked == true
end
function mt:setData(k, v)
if not self.data then
self.data = {}
end
self.data[k] = v
end
function mt:getData(k)
if not self.data then
return nil
end
return self.data[k]
end
function mt:addOptional()
if self:isOptional() then
return self
end
self.optional = true
end
function mt:removeOptional()
if not self:isOptional() then
return self
end
self:_expand()
for i = #self, 1, -1 do
local n = self[i]
if n.type == 'nil'
or (n.type == 'boolean' and n[1] == false)
or (n.type == 'doc.type.boolean' and n[1] == false) then
self[i] = self[#self]
self[#self] = nil
end
end
end
---@return boolean
function mt:isOptional()
if self.optional ~= nil then
return self.optional
end
self:_expand()
for _, c in ipairs(self) do
if c.type == 'nil'
or (c.type == 'boolean' and c[1] == false)
or (c.type == 'doc.type.boolean' and c[1] == false) then
self.optional = true
return true
end
end
self.optional = false
return false
end
---@return fun():vm.object
function mt:eachObject()
self:_expand()
local i = 0
return function ()
i = i + 1
return self[i]
end
end
---@param source parser.object | vm.generic
---@param node vm.node | vm.object
---@param cover? boolean
function vm.setNode(source, node, cover)
if not node then
error('Can not set nil node')
end
if source.type == 'global' then
error('Can not set node to global')
end
if cover then
vm.nodeCache[source] = node
return
end
local me = vm.nodeCache[source]
if me then
me:merge(node)
else
if node.type == 'vm.node' then
vm.nodeCache[source] = node
else
vm.nodeCache[source] = vm.createNode(node)
end
end
end
---@return vm.node?
function vm.getNode(source)
return vm.nodeCache[source]
end
---@param source vm.object
function vm.removeNode(source)
vm.nodeCache[source] = nil
end
function vm.clearNodeCache()
vm.nodeCache = {}
end
---@param a? vm.node | vm.object
---@param b? vm.node | vm.object
---@return vm.node
function vm.createNode(a, b)
local node = setmetatable({}, mt)
if a then
node:merge(a)
end
if b then
node:merge(b)
end
return node
end
files.watch(function (ev, uri)
if ev == 'version' then
vm.clearNodeCache()
end
end)
|
