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|
---@alias scope.type '"override"'|'"folder"'|'"fallback"'
---@class scope
---@field type scope.type
---@field uri? uri
---@field _links table<uri, boolean>
---@field _data table<string, any>
local mt = {}
mt.__index = mt
---@param uri uri
function mt:addLink(uri)
self._links[uri] = true
end
---@param uri uri
function mt:removeLink(uri)
self._links[uri] = nil
end
function mt:removeAllLinks()
self._links = {}
end
---@param uri uri
---@return boolean
function mt:isChildUri(uri)
return uri:sub(1, #self.uri) == self.uri
end
---@param uri uri
---@return boolean
function mt:isLinkedUri(uri)
for linkUri in pairs(self._links) do
if uri:sub(1, #linkUri) == linkUri then
return true
end
end
return false
end
---@param k string
---@param v any
function mt:set(k, v)
self._data[k] = v
return v
end
---@param k string
---@return any
function mt:get(k)
return self._data[k]
end
---@param scopeType scope.type
---@return scope
local function createScope(scopeType)
local scope = setmetatable({
type = scopeType,
_links = {},
_data = {},
}, mt)
return scope
end
---@class scope.manager
local m = {}
---@type scope[]
m.folders = {}
m.override = createScope 'override'
m.fallback = createScope 'fallback'
---@param uri uri
---@return scope
function m.createFolder(uri)
local scope = createScope 'folder'
scope.uri = uri
local inserted = false
for i, otherScope in ipairs(m.folders) do
if #uri > #otherScope.uri then
table.insert(m.folders, i, scope)
inserted = true
break
end
end
if not inserted then
table.insert(m.folders, scope)
end
return scope
end
---@param uri uri
---@return scope
function m.getFolder(uri)
for _, scope in ipairs(m.folders) do
if not uri or scope:isChildUri(uri) then
return scope
end
end
return nil
end
---@param uri uri
---@return scope
function m.getLinkedScope(uri)
if m.override and m.override:isLinkedUri(uri) then
return m.override
end
for _, scope in ipairs(m.folders) do
if scope:isLinkedUri(uri) then
return scope
end
end
if m.fallback:isLinkedUri(uri) then
return m.fallback
end
end
return m
|
