Subscribe to Storage Without Hiding the State Flow

A read-only storage section can be observed in contexts where mutation is not allowed.

---@omw-context player

local async = require 'openmw.async'
local storage = require 'openmw.storage'

local settings = storage.globalSection('ExampleSettings')
local enabled = settings:get('enabled') == true

settings:subscribe(async:callback(function(section, key)
  if key ~= 'enabled' then return end

  enabled = section:get('enabled') == true
end))

The important part is not the syntax. The important part is that enabled has an obvious source and invalidation path.

Do not wrap storage access behind a magic table unless the abstraction preserves these semantics clearly.

See Storage, Save State, and Lifecycle and A Shadow Cache Needs the Same Invalidation as Its Source.