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local libraryBuilder = require 'vm.library'
local library = require 'core.library'
local function getDefaultSource()
return {
start = 0,
finish = 0,
uri = '',
}
end
local mt = {}
mt.__index = mt
mt.type = 'value'
function mt:setType(tp, rate)
if type(tp) == 'table' then
for _, ctp in ipairs(tp) do
self:setType(ctp, rate)
end
return
end
if tp == '...' then
error('Value type cant be ...')
end
if not tp then
tp = 'nil'
end
if tp == 'any' or tp == 'nil' then
rate = 0.0
end
local current = self._type[tp] or 0.0
self._type[tp] = current + (1 - current) * rate
end
function mt:getType()
if not self._type then
return 'nil'
end
local mRate = 0.0
local mType
for tp, rate in pairs(self._type) do
if rate > mRate then
mRate = rate
mType = tp
end
end
return mType or 'any'
end
function mt:rawSet(index, value)
if not self._child then
self._child = {}
end
if self._child[index] then
self._child[index]:mergeValue(value)
else
self._child[index] = value
end
end
function mt:rawGet(index)
if not self._child then
return nil
end
return self._child[index]
end
function mt:setChild(index, value)
self:setType('table', 0.5)
self:rawSet(index, value)
return value
end
function mt:getLibChild(index)
local tp = self:getType()
local lib = library.object[tp]
if lib then
local childs = libraryBuilder.child(lib)
return childs[index]
end
end
function mt:eachLibChild(callback)
local tp = self:getType()
local lib = library.object[tp]
if lib then
local childs = libraryBuilder.child(lib)
for k, v in pairs(childs) do
callback(k, v)
end
end
end
function mt:getChild(index, mark)
self:setType('table', 0.5)
local value = self:rawGet(index)
if value then
return value
end
local method = self:getMetaMethod('__index')
if not method then
return self:getLibChild(index)
end
if not mark then
mark = {}
end
if mark[method] then
return nil
end
mark[method] = true
return method:getChild(index, mark)
end
function mt:setMetaTable(metatable)
self._meta = metatable
end
function mt:getMetaTable()
return self._meta
end
function mt:getMetaMethod(name)
local meta = self:getMetaTable()
if not meta then
return nil
end
return meta:rawGet(name)
end
function mt:rawEach(callback, foundIndex)
if not self._child then
return nil
end
for index, value in pairs(self._child) do
if foundIndex then
if foundIndex[index] then
goto CONTINUE
end
foundIndex[index] = true
end
local res = callback(index, value)
if res ~= nil then
return res
end
::CONTINUE::
end
return nil
end
function mt:eachChild(callback, mark, foundIndex)
if not foundIndex then
foundIndex = {}
end
local res = self:rawEach(callback, foundIndex)
if res ~= nil then
return res
end
local method = self:getMetaMethod('__index')
if not method then
return self:eachLibChild(callback)
end
if not mark then
mark = {}
end
if mark[method] then
return nil
end
mark[method] = true
return method:eachChild(callback, mark, foundIndex)
end
function mt:mergeValue(value)
if value._type then
for tp, rate in pairs(value._type) do
self:setType(tp, rate)
end
end
if value._child then
if not self._child then
self._child = {}
end
for k, v in pairs(value._child) do
self._child[k] = v
end
end
local hasSource = {}
for _, info in ipairs(self) do
hasSource[info.source] = true
end
for _, info in ipairs(value) do
if not hasSource[info.source] then
self[#self+1] = info
end
end
if value._meta then
self._meta = value._meta
end
if value._func then
self._func = value._func
end
if value._lib then
self._lib = value._lib
end
end
function mt:addInfo(tp, source)
if source and not source.start then
error('Miss start: ' .. table.dump(source))
end
self[#self+1] = {
type = tp,
source = source or getDefaultSource(),
}
end
function mt:eachInfo(callback)
for _, info in ipairs(self) do
local res = callback(info)
if res ~= nil then
return res
end
end
return nil
end
function mt:setFunction(func)
self._func = func
end
function mt:getFunction()
return self._func
end
function mt:setLib(lib)
self._lib = lib
end
function mt:getLib()
return self._lib
end
function mt:getLiteral()
return self._literal
end
return function (tp, source, literal)
if tp == '...' then
error('Value type cant be ...')
end
local self = setmetatable({
source = source or getDefaultSource(),
_type = {},
_literal = literal,
}, mt)
if type(tp) == 'table' then
for i = 1, #tp do
self:setType(tp[i], 1.0 / #tp)
end
else
self:setType(tp, 1.0)
end
return self
end
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